WO2016119266A1 - Subframe sending and receiving methods, base station, and user equipment - Google Patents

Abstract

The present invention provides subframe sending and receiving methods, a base station, and a UE. A complete subframe is formed by splicing an incomplete subframe, which is located between a start time point after a base station occupies an unlicensed carrier and a start position of a next subframe, with other subframes, and effective data can be sent by using the incomplete subframe, and accordingly the utilization efficiency of unlicensed carriers is improved; when data is sent starting from any symbol, the base station just needs to precode data of a complete subframe in advance, preprocessing is performed without the need of traversing all complete subframes, and accordingly processing resources are saved. The subframe sending method comprises: a base station allocates an unlicensed carrier to a UE; the base station determines a first incomplete subframe after the unlicensed carrier is occupied, and determines a spliced subframe spliced with the first incomplete subframe; the base station codes data in a TTI; and the base station sends the coded data to the UE by means of the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.

Description

Method for transmitting and receiving subframes, base station and user equipment Technical field

The present invention relates to the field of communications technologies, and in particular, to a method for transmitting and receiving a subframe, a base station, and a user equipment.

Background technique

Unlicensed Spectrum (English: Unlicensed Spectrum) refers to the public spectrum, which can be used by any organization or individual. However, when using the unlicensed spectrum, you need to follow the Listening After Talk (LBT) mechanism. That is, the communication device first monitors whether there are other communication devices transmitting data on the channel before sending the frame. If the channel is idle, The communication device can transmit data; otherwise, the communication device will not send data temporarily, but will avoid trying it for a while. Generally, the LBT needs to follow the Clear Channel Assessment (CCA) principle and the Extended CCA (ECCA) principle. The so-called CCA principle requires the communication device to at least monitor the channel for one CCA observation time window. The length of time, wherein the CCA observation time window is a predetermined length of time, such as 20 microseconds (unit: us). If the communication device does not monitor the carrier signal within the one CCA observation time window, the channel is considered to be an idle channel. can use. If the communication device listens to the carrier signal within this one CCA observation time window, then the channel is considered occupied and thus transitions to the ECCA phase. In the ECCA phase, the communication device generates an integer random number R, and then it is necessary to continuously listen to the R CCA observation time windows before using the channel at a channel idle point.

The base station can deploy the LTE carrier on the unlicensed spectrum, but the base station can only use the unlicensed spectrum resource for a period of time (for example, 10 milliseconds), and cannot be used once the other communication device occupies the unlicensed spectrum resource. The unlicensed spectrum cannot be used for the user equipment (English: User Equipment, UE for short). It can only provide data transmission services for the UE as a secondary carrier. The UE needs to be anchored to a licensed spectrum.

Multi-carrier in Long Term Evolution (LTE) system As shown in FIG. 1 , a plurality of component carriers have the same timing relationship, that is, the frame boundary and the subframe number of the primary and secondary carriers are the same; the uplink feedback information of the downlink data of the primary and secondary carriers is uplinked from one of the carriers. For example, in FIG. 1, the acknowledgement (English: Acknowledge, ACK for short) sent by the primary carrier on the subframe 5 is a response to the data transmitted on the primary and secondary carrier subframe 1; the data of one carrier can be used by other The physical downlink control channel (English: Physical Downlink Control Channel, PDCCH for short) scheduling, that is, cross-carrier scheduling, may also be scheduled by the carrier's own PDCCH. For example, in FIG. 1, the primary carrier subframe 0 is used. The PDCCH is used to schedule data on the secondary carrier subframe 0 across carriers, but it should be noted that only one of the scheduling modes can be selected at the same time.

The frame structure in the LTE system is as shown in FIG. 2, and one frame includes 10 subframes, and each subframe includes at least a PDCCH and a physical downlink shared channel (English: Physical Downlink Shared Channel, PDSCH) symbol, and optionally may exist. Enhanced physical downlink control channel (English: Enhanced Physical Downlink Control Channel, referred to as EPDCCH). Generally, the PDCCH occupies the first n orthogonal frequency division multiplexing (OFDM) symbols of each subframe in the time domain, and n≤3, and the PDSCH only occupies the OFDM symbol of the control channel and the reference signal. Subsequent OFDM symbols, if EPDCCH is configured, the EPDCCH may be on a part of the frequency domain resources of the area where the PDSCH is located.

As shown in FIG. 3, after confirming that the unlicensed secondary carrier is idle by ECC A (or CCA), the base station starts to use the unlicensed secondary carrier for data transmission. However, the start time and the subframe boundary after the base station occupies the unlicensed carrier may not overlap. For example, in FIG. 3, the time between the start time after the base station occupies the unlicensed carrier and the start position of the subframe 0 It is an incomplete sub-frame. The CCA or ECCA phase before the base station occupies the unlicensed carrier is likely to occupy the first n OFDM symbols of the PDCCH in one subframe, resulting in the lack of a PDCCH and the data of the subframe cannot be scheduled, so that data transmission cannot be performed.

In the prior art, it is proposed that a preamble (English: Preamble) can be sent in an incomplete subframe between a start time after the base station occupies the unlicensed carrier and a start position of the next subframe, thereby maintaining the base station for the non-authorized auxiliary. Occupancy of the channel resource where the carrier is located. However, since the preamble transmission phase cannot send the scheduling data for the UE, it will cause one time from the time when the unlicensed carrier is occupied this time. The resources of the complete subframe cannot be used, resulting in waste of channel resources.

In order to overcome the deficiencies of the foregoing technologies, a method for transmitting unlicensed secondary carrier data is proposed in the prior art, and it is considered that between the start time after the base station occupies the unlicensed carrier and the start position of the next subframe. The scheduling data for the UE is transmitted in the complete subframe, and the scheduling information corresponding to the scheduling data transmitted in the incomplete subframe is transmitted in the next subframe. For example, as shown in FIG. 4, the PDCCH on subframe 3 of the authorized primary carrier is used to schedule data on subframe 2 of the unlicensed secondary carrier across carriers. However, the data transmitted in the Nth subframe of the existing LTE system generally needs to be encoded in the N-1th subframe. Since the first subframe in the method is an incomplete subframe, the number of data symbols that can be used in the first subframe cannot be known in the previous subframe of the first subframe, which brings the data in advance coding. challenge. In order to encode data that may be sent for incomplete subframes in advance, the base station needs to know in advance that each subframe occupies data symbols, thereby causing the base station to need to erroneously traverse all the complete subframes for preprocessing, which greatly consumes The processing resources of the base station.

Summary of the invention

The embodiment of the present invention provides a method for transmitting and receiving a seed frame, a base station, and a UE, which are used to solve the incompleteness between the start time of the base station occupying the unlicensed carrier and the start position of the next subframe in the prior art. Sending scheduling data for the UE within a subframe wastes the processing resources of the base station.

In a first aspect, an embodiment of the present invention provides a base station, including:

a configuration unit, configured to configure an unlicensed carrier for the UE;

a determining unit, configured to determine a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe that is spliced with the first incomplete subframe;

a coding unit for encoding data in a TTI;

And a sending unit, configured to send the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

With reference to the first aspect, in a first possible implementation manner of the first aspect, after the determining unit determines that the unlicensed carrier is occupied, the sending unit is further configured to:

Sending a secondary carrier occupation notification to the UE by using an authorized carrier or the unlicensed carrier to notify The base time at which the base station of the UE temporarily occupies the unlicensed carrier.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, when determining the spliced subframe spliced with the first incomplete subframe, The determining unit is specifically used for:

Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, if the determining unit determines that the last incomplete subframe of the unlicensed carrier is the first one Spliced sub-frames with incomplete sub-frames;

Before the sending unit sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the determining unit is specifically configured to:

Determining, according to the location of the first incomplete subframe after the unlicensed carrier is occupied, and the occupation duration information of the unlicensed carrier by the base station, determining that the unlicensed carrier is occupied last The position of the complete subframe;

The sending unit is specifically configured to:

Transmitting the encoded data to the UE by the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the occupying duration information is configured by the base station and carried in a secondary carrier occupation notification, and sent to the UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

In conjunction with the third possible implementation of the first aspect, in a fifth possible implementation manner of the foregoing aspect, the base station further includes:

a scheduling unit, configured to: place scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on the non-authorized And placing the scheduling information of the data on the first incomplete subframe and the last incomplete subframe of the unlicensed carrier; Or the scheduling information of the data is placed on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

In conjunction with the second possible implementation of the first aspect, in a sixth possible implementation manner of the first aspect, the determining unit determines that the second subframe of the unlicensed carrier is incomplete with the first one Sub-frame spliced sub-frame;

Before the sending unit sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the determining unit is specifically configured to:

Determining, according to the symbol length M of the first incomplete subframe, a splicing symbol length N of the second subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, and controlling The length of the symbol and the length of the data symbol, and the sum of M and N is the symbol length of one complete subframe;

The sending unit is specifically configured to:

Transmitting the encoded data to the UE by the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

With reference to the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the foregoing aspect, the base station further includes:

a scheduling unit, configured to: place scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on a first part of the unlicensed carrier On the EPDCCH of the incomplete subframe and the first N symbols of the second subframe.

In conjunction with the sixth possible implementation of the first aspect, in an eighth possible implementation manner of the first aspect, the scheduling unit is further configured to:

Scheduling the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

Placing scheduling information of data scheduled on the last M symbols of the second subframe in the non-grant On the PDCCH of the second subframe of the weight carrier.

In combination with the first aspect and any one of the first to eighth possible implementations of the first aspect, in a ninth possible implementation of the first aspect, the encoded data is sent to the Before the UE, the sending unit is further configured to:

Transmitting a padding signal or a preamble signal to the UE on the unlicensed carrier to maintain occupation of the unlicensed carrier and notify the UE that the unlicensed carrier is occupied by the first incomplete subframe position.

In combination with the first aspect and any one of the first to eighth possible implementations of the first aspect, in the tenth possible implementation of the first aspect, the determining unit determines the unauthorized After the first incomplete subframe after the carrier is occupied, the sending unit is further configured to:

Sending an unlicensed carrier transmission indication to the UE, the unlicensed carrier transmission indication indicating a location of a first incomplete subframe of the unlicensed carrier and data for splicing in a first incomplete subframe The length of the symbol.

In a second aspect, an embodiment of the present invention provides a UE, including:

a receiving unit, configured to receive data sent by the base station by using an unlicensed carrier;

a determining unit, configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe;

And an acquiring unit, configured to acquire encoded data in one TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before receiving data sent by the base station by using the unlicensed carrier, the receiving unit is further configured to:

Receiving, by the base station, a padding signal or a preamble signal sent by the unlicensed carrier, where the padding signal or the preamble signal is used to maintain occupation of the unlicensed carrier by the base station and notify the UE that the unlicensed carrier is The position of the first incomplete subframe after occupancy;

After determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the determining unit is specifically configured to:

Performing a detection of a fill signal or a preamble signal on the unlicensed carrier, and detecting a fill signal Or the subframe acknowledgement of the preamble signal is the first incomplete subframe after the unlicensed carrier is occupied by the base station.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, after the determining unit determines that the unlicensed carrier is occupied by the base station, Before an incomplete subframe, the receiving unit is further configured to:

And receiving, by the base station, a secondary carrier occupation notification sent by the authorized carrier or the unlicensed carrier, where the secondary carrier occupation notification is used to indicate a starting moment that the base station temporarily occupies the unlicensed carrier.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the first incomplete after determining that the unlicensed carrier is occupied by the base station When the subframe is used, the determining unit is specifically configured to:

Determining, according to the unlicensed carrier transmission indication sent by the base station, a first incomplete subframe after the unlicensed carrier is occupied by the base station.

In combination with the second aspect and any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, determining the first incomplete subframe When the spliced sub-frames are spliced, the determining unit is specifically configured to:

Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

In a fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, when determining the last incomplete subframe of the unlicensed carrier, the determining unit is specifically used to:

Determining, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier by the base station, determining the last incomplete subframe after the unlicensed carrier is occupied The location and the determined subframe confirmation at the location of the last incomplete subframe is the last incomplete subframe of the unlicensed carrier.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the occupying duration information is configured by the base station and carried in a secondary carrier occupation notification to be sent to the Said UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

In combination with the second aspect and any one of the first to sixth possible implementation manners of the second aspect, in a seventh possible implementation of the second aspect, the first one of the unlicensed carriers When acquiring the encoded data in a TTI on the incomplete subframe and the spliced subframe, the acquiring unit is specifically configured to:

Determining a symbol length of the first incomplete subframe and a length of the data symbol;

Calculating a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

The encoded data in one TTI is acquired on the data symbols in the first incomplete subframe and the data symbols in the spliced subframe.

In conjunction with the seventh possible implementation of the second aspect, in an eighth possible implementation manner of the second aspect, when determining a symbol length of the first incomplete subframe and a length of the data symbol, The obtaining unit is specifically used for:

Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and calculating the first incomplete according to the position of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of the subframe and the symbol length occupied by the padding signal or the preamble signal in the first incomplete subframe;

Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.

In conjunction with the seventh possible implementation of the second aspect, in a ninth possible implementation manner of the second aspect, when determining a symbol length of the first incomplete subframe and a length of the data symbol, The obtaining unit is specifically used for:

Determining, according to the unlicensed carrier transmission indication sent by the base station, the first of the unlicensed carriers The symbol length of an incomplete subframe and the length of the data symbol in the first incomplete subframe.

In conjunction with the fourth possible implementation of the second aspect, in a tenth possible implementation manner of the second aspect, the determining unit determines that the last incomplete subframe of the unlicensed carrier is the first one Spliced sub-frames with incomplete sub-frames;

The UE further includes:

a decoding unit, configured to: after the acquiring unit acquires encoded data in one TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on a last one from the unlicensed carrier The scheduling information acquired on the PDCCH of the complete subframe is used to decode the acquired encoded data; or the scheduling information obtained based on the PDCCH of the subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier, Decoding the acquired encoded data; or decoding the data on the spliced subframe based on extracting scheduling information from the EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier Or, the acquired encoded data is decoded based on scheduling information acquired from an EPDCCH of a subframe of the first carrier of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

With the fourth possible implementation of the second aspect, in an eleventh possible implementation manner of the second aspect, the determining unit determines that the second subframe of the unlicensed carrier is the first one a spliced subframe in which a complete subframe is spliced;

The UE further includes:

a decoding unit, configured to: after the acquiring unit acquires encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on the first one from the unlicensed carrier Scheduling information acquired on the PDCCH of the incomplete subframe, and decoding the acquired encoded data; or based on scheduling information obtained from the EPDCCH of the first incomplete subframe and the second subframe of the unlicensed carrier, The acquired encoded data is decoded.

In a fifth aspect, an embodiment of the present invention provides a base station, including:

a processor, configured to configure an unlicensed carrier for the UE; determine a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe spliced with the first incomplete subframe; Data is encoded;

And a transceiver, configured to send the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, after the processor determines that the unlicensed carrier is occupied, the transceiver is further configured to:

And sending, by the authorized carrier or the unlicensed carrier, a secondary carrier occupation notification to the UE, to notify the UE that the base station currently occupies the starting time of the unlicensed carrier.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, when determining the spliced subframe that is spliced with the first incomplete subframe, The processor is specifically used to:

Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

In conjunction with the second possible implementation of the fifth aspect, in a third possible implementation manner of the fifth aspect, if the processor determines that the last incomplete subframe of the unlicensed carrier is the first one Spliced sub-frames with incomplete sub-frames;

Before the transceiver sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is specifically configured to:

Determining, according to the location of the first incomplete subframe after the unlicensed carrier is occupied, and the occupation duration information of the unlicensed carrier by the base station, determining that the unlicensed carrier is occupied last The position of the complete subframe;

The transceiver is specifically configured to:

Transmitting the encoded data to the UE by the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the occupying duration information is configured by the base station and carried in a secondary carrier occupation notification, and sent to the UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

In conjunction with the third possible implementation of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the processor is further configured to:

And placing scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier; or placing scheduling information of the data on a last incomplete subframe of the unlicensed carrier Authorizing the PDCCH of the subframe of the carrier; or, placing the scheduling information of the data on the EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier; or, the data is The scheduling information is placed on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

With the second possible implementation of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, if the processor determines that the second subframe of the unlicensed carrier is incomplete with the first one Sub-frame spliced sub-frame;

Before the transceiver sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is specifically configured to:

Determining, according to the symbol length M of the first incomplete subframe, a splicing symbol length N of the second subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, and controlling The length of the symbol and the length of the data symbol, and the sum of M and N is the symbol length of one complete subframe;

The transceiver is specifically configured to:

Transmitting the encoded data to the UE by the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

In conjunction with the sixth possible implementation of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the processor is further configured to:

Placing scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or placing scheduling information of the data on a first incomplete subframe of the unlicensed carrier And on the EPDCCH of the first N symbols of the second subframe.

In conjunction with the sixth possible implementation of the fifth aspect, the eighth possible implementation in the fifth aspect In the current mode, the processor is further configured to:

Scheduling the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.

With reference to the fifth aspect and any one of the first to eighth possible implementation manners of the fifth aspect, in a ninth possible implementation manner of the fifth aspect, the encoded data is sent to the Before the UE, the transceiver is also used to:

Transmitting a padding signal or a preamble signal to the UE on the unlicensed carrier to maintain occupation of the unlicensed carrier and notify the UE that the unlicensed carrier is occupied by the first incomplete subframe position.

With reference to the fifth aspect, and any one of the first to eighth possible implementation manners of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the processor determines the unauthorized After the first incomplete subframe after the carrier is occupied, the transceiver is further used to:

Sending an unlicensed carrier transmission indication to the UE, the unlicensed carrier transmission indication indicating a location of a first incomplete subframe of the unlicensed carrier and data for splicing in a first incomplete subframe The length of the symbol.

In a sixth aspect, an embodiment of the present invention provides a UE, including:

a transceiver, configured to receive data sent by the base station by using an unlicensed carrier;

a processor, configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe;

The transceiver is further configured to acquire encoded data in a TTI on a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, before receiving data sent by the base station by using the unlicensed carrier, the transceiver is further configured to:

Receiving, by the base station, a padding signal or a preamble signal sent by the unlicensed carrier, where the padding signal or the preamble signal is used to maintain occupation and notification of the unlicensed carrier by the base station a location of the first incomplete subframe after the UE is occupied by the unlicensed carrier;

After determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the processor is specifically configured to:

Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and confirming that the sub-frame acknowledgment of the padding signal or the preamble signal is the first incomplete subframe after the unlicensed carrier is occupied by the base station.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, after the processor determines that the unlicensed carrier is occupied by the base station, Before an incomplete subframe, the transceiver is also used to:

And receiving, by the base station, a secondary carrier occupation notification sent by the authorized carrier or the unlicensed carrier, where the secondary carrier occupation notification is used to indicate a starting moment that the base station temporarily occupies the unlicensed carrier.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the first incomplete after determining that the unlicensed carrier is occupied by the base station When the subframe is used, the processor is specifically configured to:

Determining, according to the unlicensed carrier transmission indication sent by the base station, a first incomplete subframe after the unlicensed carrier is occupied by the base station.

With reference to the sixth aspect and any one of the first to third possible implementation manners of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the determining and the first incomplete subframe are When the spliced sub-frames are spliced, the processor is specifically configured to:

Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, when determining the last incomplete subframe of the unlicensed carrier, the processor specifically uses In:

Determining, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier by the base station, determining the last incomplete subframe after the unlicensed carrier is occupied The location and the determined subframe confirmation at the location of the last incomplete subframe is the last incomplete subframe of the unlicensed carrier.

With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the occupied duration information is configured by the base station and carried in a secondary carrier occupation notification to be sent to the Said UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

With reference to the sixth aspect and any one of the first to sixth possible implementation manners of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the first one of the unlicensed carriers When acquiring encoded data in a TTI on an incomplete subframe and its spliced subframe, the processor is specifically configured to:

Determining a symbol length of the first incomplete subframe and a length of the data symbol;

Calculating a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

The encoded data in one TTI is acquired on the data symbols in the first incomplete subframe and the data symbols in the spliced subframe.

With reference to the seventh possible implementation manner of the sixth aspect, in an eighth possible implementation manner of the sixth aspect, when determining a symbol length of the first incomplete subframe and a length of the data symbol, The processor is specifically used to:

Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and calculating the first incomplete according to the position of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of the subframe and the symbol length occupied by the padding signal or the preamble signal in the first incomplete subframe;

Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.

With reference to the seventh possible implementation manner of the sixth aspect, in a ninth possible implementation manner of the sixth aspect, when determining a symbol length of the first incomplete subframe and a length of the data symbol, The processor is specifically used to:

And determining, according to the unlicensed carrier transmission indication sent by the base station, a symbol length of the first incomplete subframe of the unlicensed carrier and a length of the data symbol in the first incomplete subframe.

In conjunction with the fourth possible implementation of the sixth aspect, in a tenth possible implementation manner of the sixth aspect, the processor determines that the last incomplete subframe of the unlicensed carrier is the first one Spliced sub-frames with incomplete sub-frames;

After acquiring the encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is further configured to:

Decoding the acquired encoded data based on scheduling information acquired from a PDCCH of a last one of the unlicensed carriers; or based on an authorized carrier corresponding to a last incomplete subframe from the unlicensed carrier Scheduling information acquired on the PDCCH of the subframe, decoding the obtained encoded data; or extracting scheduling information based on the EPDCCH from the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, Decoding data on the spliced subframe; or scheduling information obtained on an EPDCCH based on a subframe of the licensed carrier corresponding to the first incomplete subframe and the last incomplete subframe of the unlicensed carrier , decoding the acquired encoded data.

In conjunction with the fourth possible implementation of the sixth aspect, in an eleventh possible implementation manner of the sixth aspect, the processor determines that the second subframe of the unlicensed carrier is the first one a spliced subframe in which a complete subframe is spliced;

After acquiring the encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is further configured to:

Decoding the acquired encoded data based on scheduling information acquired from a PDCCH of the first incomplete subframe of the unlicensed carrier; or based on a first incomplete subframe and the first from the unlicensed carrier Scheduling information acquired on the EPDCCH of the two subframes, and decoding the acquired encoded data.

In a fifth aspect, an embodiment of the present invention provides a method for sending a seed frame, including:

The base station configures an unlicensed carrier for the UE;

Determining, by the base station, the first incomplete subframe after the unlicensed carrier is occupied, and the spliced subframe spliced with the first incomplete subframe;

The base station encodes data in one TTI;

The base station sends the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, after the determining, by the base station, that the unlicensed carrier is occupied, the method further includes:

And the base station sends a secondary carrier occupation notification to the UE by using the authorized carrier or the unlicensed carrier, to notify the UE of the start time of the unlicensed carrier by the base station.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the base station determines a spliced subframe that is spliced with the first incomplete subframe, including :

Determining, by the base station, that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe; or

The base station determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

In conjunction with the second possible implementation of the fifth aspect, in a third possible implementation manner of the fifth aspect, if the base station determines that the last incomplete subframe of the unlicensed carrier is the first one a spliced subframe in which a complete subframe is spliced;

The base station sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, including:

Determining, by the base station, that the unlicensed carrier is occupied according to the location of the first incomplete subframe after the unlicensed carrier is occupied and the occupied duration information of the unlicensed carrier by the base station The position of the last incomplete subframe;

Passing, by the base station, the encoded data through the first incomplete subframe of the unlicensed carrier The symbol of the last and last incomplete subframe is sent to the UE.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the occupying duration information is configured by the base station and carried in a secondary carrier occupation notification, and sent to the UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

With reference to the third possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the method further includes:

The base station places scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier; or

The base station places scheduling information of the data on a PDCCH of a subframe of an authorized carrier corresponding to a last incomplete subframe of the unlicensed carrier; or

The base station places scheduling information of the data on an EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier; or

The base station places the scheduling information of the data on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

With reference to the second possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, if the base station determines that the second subframe of the unlicensed carrier is incomplete with the first sub Spliced sub-frame of frame stitching;

The base station sends the encoded data to the UE by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, including:

Determining, by the base station, the spliced symbol length N of the second subframe according to the symbol length M of the first incomplete subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol occupied by the preamble signal Length, length of the control symbol, and length of the data symbol, and the sum of M and N is the symbol length of one complete subframe;

The base station sends the encoded data to the UE by using the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

In conjunction with the sixth possible implementation of the fifth aspect, the seventh possible implementation in the fifth aspect In the current mode, the method further includes:

The base station places scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or

The base station places the scheduling information of the data on the EPDCCH of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

With the sixth possible implementation of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the method further includes:

The base station schedules the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.

With reference to the fifth aspect, and any one of the first to the eighth possible implementation manners of the fifth aspect, in a ninth possible implementation manner of the fifth aspect, the base station sends the encoded data to Before the UE, the method further includes:

Transmitting, by the base station, a padding signal or a preamble signal to the UE on the unlicensed carrier, to maintain occupation of the unlicensed carrier, and notify the UE that the unlicensed carrier is occupied after the first incomplete The position of the sub-frame.

With reference to the fifth aspect, and any one of the first to the eighth possible implementation manners of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the base station determines that the unlicensed carrier is After the first incomplete subframe after the occupation, it also includes:

Sending, by the base station, an unlicensed carrier transmission indication to the UE, where the unlicensed carrier transmission indication is used to indicate a location of the first incomplete subframe of the unlicensed carrier and is used in a first incomplete subframe The length of the spliced data symbol.

In a sixth aspect, an embodiment of the present invention provides a method for receiving a seed frame, including:

The UE receives data sent by the base station through the unlicensed carrier;

Determining, by the UE, the first incomplete subframe after the unlicensed carrier is occupied by the base station, and the spliced subframe spliced with the first incomplete subframe;

The UE acquires coded data in one TTI on the first incomplete subframe of the unlicensed carrier and its spliced subframe.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, before the UE receives the data that is sent by the base station by using the unlicensed carrier, the method further includes:

Receiving, by the UE, a padding signal or a preamble signal sent by the base station by using the unlicensed carrier, where the padding signal or the preamble signal is used to maintain occupation of the unlicensed carrier by the base station and notify the UE of the non- The location of the first incomplete subframe after the authorized carrier is occupied;

Determining, by the UE, the first incomplete subframe after the unlicensed carrier is occupied by the base station, including:

Performing, by the UE, the filling signal or the preamble signal on the unlicensed carrier, and detecting that the sub-frame acknowledgment of the padding signal or the preamble signal is the first incomplete subframe after the unlicensed carrier is occupied by the base station .

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the UE determines that the unlicensed carrier is occupied by the base station Before the incomplete sub-frame, it also includes:

Receiving, by the UE, a secondary carrier occupation notification sent by the base station by using an authorized carrier or the unlicensed carrier, where the secondary carrier occupation notification is used to indicate a starting moment of the base station occupying the unlicensed carrier.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the UE determines that the unlicensed carrier is occupied by the base station Incomplete subframes, including:

Determining, by the UE according to the unlicensed carrier transmission indication sent by the base station, the first incomplete subframe after the unlicensed carrier is occupied by the base station.

With reference to the sixth aspect, and any one of the first to the third possible implementation manners of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the UE determines that the first one is incomplete Sub-frame spliced sub-frames, including:

Determining, by the UE, that the last incomplete subframe of the unlicensed carrier is incomplete with the first one a spliced sub-frame of a sub-frame stitching; or

The UE determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the determining, by the UE, the last incomplete subframe of the unlicensed carrier includes:

Determining, by the UE, the last one after the unlicensed carrier is occupied, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier currently occupied by the base station The location of the complete subframe and the subframe confirmation at the location of the determined last incomplete subframe is the last incomplete subframe of the unlicensed carrier.

With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the occupied duration information is configured by the base station and carried in a secondary carrier occupation notification to be sent to the Said UE; or

The occupancy duration information is pre-configured on the base station side and the UE side.

With reference to the sixth aspect, and any one of the first to the sixth possible implementation manners of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the UE is in the unlicensed carrier Acquiring encoded data in a TTI on the first incomplete subframe and its spliced subframe, including:

Determining, by the UE, a symbol length of the first incomplete subframe and a length of the data symbol;

Determining, by the UE, a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

The UE acquires encoded data in one TTI on the data symbols in the first incomplete subframe and the data symbols in the spliced subframe.

With reference to the seventh possible implementation manner of the sixth aspect, in an eighth possible implementation manner of the sixth aspect, the UE determines a symbol length of the first incomplete subframe and a length of the data symbol, include:

Performing, by the UE, the filling signal or the preamble signal on the unlicensed carrier, and calculating the first position according to the position of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of an incomplete subframe and the padding signal in the first incomplete subframe Or the length of the symbol occupied by the preamble, and

Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.

With reference to the seventh possible implementation manner of the sixth aspect, in a ninth possible implementation manner of the sixth aspect, the UE determines a symbol length of the first incomplete subframe and a length of the data symbol, include:

Determining, by the UE, the symbol length of the first incomplete subframe of the unlicensed carrier and the length of the data symbol in the first incomplete subframe according to the unlicensed carrier transmission indication sent by the base station.

With reference to the fourth possible implementation manner of the sixth aspect, in a tenth possible implementation manner of the sixth aspect, the UE determines that the last incomplete subframe of the unlicensed carrier is the first one a spliced subframe in which a complete subframe is spliced;

After acquiring the encoded data in the TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the UE further includes:

Decoding, by the UE, the acquired encoded data based on scheduling information acquired from a PDCCH of a last one of the unlicensed carriers; or

Decoding, by the UE, the acquired encoded data based on scheduling information acquired from a PDCCH of a subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier; or

Decoding the data on the spliced subframe based on extracting scheduling information from the EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier; or

The UE decodes the acquired encoded data based on scheduling information acquired from an EPDCCH of a subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

With reference to the fourth possible implementation manner of the sixth aspect, in an eleventh possible implementation manner of the sixth aspect, the UE determines that the second subframe of the unlicensed carrier is incomplete with the first one Sub-frame spliced sub-frame;

After acquiring the encoded data in the TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the UE further includes:

Decoding, by the UE, the acquired encoded data based on scheduling information acquired from a PDCCH of a first incomplete subframe of the unlicensed carrier; or

The UE decodes the acquired encoded data based on scheduling information acquired from the first incomplete subframe of the unlicensed carrier and the EPDCCH of the second subframe.

With the solution provided by the embodiment of the present invention, an incomplete subframe between a start time after the base station occupies the unlicensed carrier and a start position of the next subframe is spliced into another complete subframe, so that one The encoded data of the complete subframe can be carried on two incomplete subframes, and the invalid data can be transmitted by using the incomplete subframe, which improves the use efficiency of the unlicensed carrier, and starts transmitting on which symbol of the incomplete subframe. Data, the base station only pre-codes the data of one complete subframe in advance, and does not need to traverse all the complete subframes for pre-processing, which saves the processing resources of the base station.

DRAWINGS

1 is a schematic diagram of a multi-carrier technology in an LTE system in the prior art;

2 is a schematic diagram of a frame structure in an LTE system in the prior art;

3 is a schematic diagram of an end position of an ECCA and a subframe boundary not overlapping on an unlicensed secondary carrier in the prior art;

4 is a schematic diagram of a method for transmitting unlicensed secondary carrier data provided by the prior art;

5A and FIG. 5B are system architecture diagrams of an application scenario according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a UE according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another base station according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present disclosure;

FIG. 10 is a flowchart of a method for sending a subframe according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a first splicing scheme according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a second splicing scheme according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of sending a secondary carrier occupation notification according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of placing a first scheduling information in a first splicing scheme according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of placing a second scheduling information in a first splicing scheme according to an embodiment of the present disclosure;

FIG. 16 is a schematic diagram of placing a third scheduling information in a first splicing scheme according to an embodiment of the present disclosure;

FIG. 17 is a schematic diagram of placing a fourth scheduling information in a first splicing scheme according to an embodiment of the present disclosure;

FIG. 18 is a schematic diagram of placing a first scheduling information in a second splicing scheme according to an embodiment of the present disclosure;

FIG. 19 is a schematic diagram of placing a second scheduling information in a second splicing scheme according to an embodiment of the present disclosure;

FIG. 20 is a schematic diagram of scheduling of a second subframe of an unlicensed carrier in a second splicing scheme according to an embodiment of the present disclosure;

FIG. 21 is a flowchart of a method for receiving a subframe according to an embodiment of the present invention.

detailed description

The embodiment of the present invention provides a method for transmitting and receiving a seed frame, a base station, and a UE, by using an incomplete subframe between a start time after the base station occupies an unlicensed carrier and a start position of the next subframe, and other children. The frames are spliced into one complete subframe, so that the encoded data of one complete subframe can be carried on two incomplete subframes, and the base station only pre-codes a complete one regardless of which symbol of the incomplete subframe starts to transmit data. The data of the subframe does not need to traverse all the complete subframes for preprocessing, which saves the processing resources of the base station.

The technical solution of the present invention can be applied to the following two system architectures:

Scenario 1: As shown in FIG. 5A, in a single base station communication scenario of the LTE system, the UE is connected to the core network through a single base station, and the base station is directly connected to the core network.

Scenario 2: Referring to FIG. 5B, in a multi-base station communication scenario of the LTE system, the UE is connected through multiple base stations and a core network, and multiple base stations are connected, and at least one of the multiple base stations directly and the core network connection.

It should be noted that the technical solution of the present invention is also applicable to other systems having the same frame structure as the LTE system.

The technical solutions of the present invention will be described below in conjunction with the drawings and the embodiments.

As shown in FIG. 6, an embodiment of the present invention provides a base station, which is used to implement a method for transmitting a subframe, where the base station includes:

The configuration unit 601 is configured to configure an unlicensed carrier for the UE.

The determining unit 602 is configured to determine a first incomplete subframe after the unlicensed carrier is occupied, and a splice subframe that is concatenated with the first incomplete subframe.

The first incomplete subframe is for a channel occupancy duration. After the channel is released, the starting position of the next channel occupancy is still the first incomplete subframe. The incomplete subframe refers to that the start or end position of the subframe is not aligned with the subframe boundary of the authorized carrier with respect to the authorized carrier. For example, the start position of the first incomplete subframe is later than the boundary of the corresponding authorized carrier subframe, and the end position is aligned with the boundary of the corresponding authorized carrier subframe. The last incomplete subframe start position is aligned with the corresponding authorized carrier subframe boundary but the end position is earlier than the corresponding authorized carrier subframe boundary. The spliced complete subframe is a logical concept of a subframe in which one TTI data is transmitted by using two incomplete subframes, and is composed of two spliced subframes in time. The length and the limit are strictly equal to one subframe length and may be less than one subframe length.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

The encoding unit 603 is configured to encode data in a transmission time interval (English: Transmission Time Interval, TTI for short).

The sending unit 604 is configured to send the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

Optionally, after the determining unit 602 determines that the unlicensed carrier is occupied, the sending The unit 604 is further configured to: send, by using the authorized carrier or the unlicensed carrier, a secondary carrier occupation notification to the UE, to notify the UE that the base station currently occupies the starting time of the unlicensed carrier.

When determining the spliced subframe spliced with the first incomplete subframe, the determining unit 602 is specifically configured to: determine that the last incomplete subframe of the unlicensed carrier is spliced with the first incomplete subframe. Splicing a subframe; or determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

The two splicing schemes are described in detail below.

Option One,

If the determining unit 602 determines that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the transmitting unit 604 passes the encoded data through the non- Before the first incomplete subframe of the authorized carrier and the spliced subframe thereof are sent to the UE, the determining unit 602 is specifically configured to: according to the location of the first incomplete subframe after the unlicensed carrier is occupied And determining, by the base station, the occupation duration information of the unlicensed carrier, determining the location of the last incomplete subframe after the unlicensed carrier is occupied.

Then, the sending unit 604 sends the encoded data to the user equipment by using the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe.

The occupancy duration information is configured by the base station and carried in the secondary carrier occupation notification, and is sent to the UE; or the occupation duration information is pre-configured on the base station side and the UE side.

Further, in the splicing mode of the first solution, the base station further includes:

a scheduling unit 605, configured to: place scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on a last one of the unlicensed carriers The PDCCH of the subframe of the authorized carrier corresponding to the incomplete subframe; or the scheduling information of the data is placed on the EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier; Or, the scheduling information of the data is placed on an EPDCCH of a subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

Option II,

If the determining unit 602 determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the transmitting unit 604 passes the encoded data through the unlicensed carrier. Before the first incomplete subframe and the spliced subframe thereof are sent to the UE, the determining unit 602 is specifically configured to: determine the splicing symbol of the second subframe according to the symbol length M of the first incomplete subframe. a length N; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol, and the sum of M and N is a complete subframe. Symbol length.

Then, the sending unit 604 sends the encoded data to the UE by using the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

Further, in the splicing mode of the second solution, the base station further includes:

The scheduling unit 605 is configured to: place scheduling information of the data on a PDCCH of the first incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on the unlicensed carrier An incomplete subframe and an EPDCCH on the first N symbols of the second subframe.

Further, in the splicing mode of the second solution, the scheduling unit 605 is further configured to: schedule the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.

Optionally, before sending the encoded data to the UE, the sending unit 604 is further configured to: send a padding signal or a preamble signal to the UE on the unlicensed carrier, to keep the non- The occupation of the licensed carrier and the location of the first incomplete subframe after the UE is notified that the unlicensed carrier is occupied.

Optionally, after the determining unit 602 determines the first incomplete subframe after the unlicensed carrier is occupied, the sending unit 604 is further configured to: send an unlicensed carrier transmission indication to the UE, where The unlicensed carrier transmission indication is used to indicate the location of the first incomplete subframe of the unlicensed carrier and the length of the data symbol used for splicing in the first incomplete subframe.

As shown in FIG. 7, an embodiment of the present invention provides a UE, which is used to implement a method for receiving a subframe. The UE includes:

The receiving unit 701 is configured to receive data that is sent by the base station by using an unlicensed carrier.

The determining unit 702 is configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

The obtaining unit 703 is configured to acquire coded data in one TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.

Optionally, before receiving the data that is sent by the base station by using the unlicensed carrier, the receiving unit 701 is further configured to: receive a padding signal or a preamble signal sent by the base station by using the unlicensed carrier, the padding signal or the preamble signal And a location for maintaining the occupation of the unlicensed carrier by the base station and notifying the first incomplete subframe of the UE that the unlicensed carrier is occupied.

Correspondingly, when determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the determining unit 702 is specifically configured to: perform detection of a padding signal or a preamble signal on the unlicensed carrier, The subframe acknowledgment that the padding signal or the preamble signal is detected is the first incomplete subframe after the unlicensed carrier is occupied by the base station.

Optionally, before the determining unit 702 determines that the unlicensed carrier is occupied by the base station, the receiving unit 701 is further configured to: receive the base station by using an authorized carrier or A secondary carrier occupancy notification sent by the unlicensed carrier, where the secondary carrier occupancy notification is used to indicate a starting moment of the base station occupying the unlicensed carrier.

Optionally, when determining that the unlicensed carrier is occupied by the base station, the determining unit 702 is specifically configured to: determine, according to the unlicensed carrier transmission indication sent by the base station, The first incomplete subframe after the unlicensed carrier is occupied by the base station.

When determining the spliced subframe spliced with the first incomplete subframe, the determining unit 702 is specifically configured to: determine that the last incomplete subframe of the unlicensed carrier is spliced with the first incomplete subframe. Splicing a subframe; or determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

The determining unit 702 is specifically configured to: according to the location of the first incomplete subframe of the unlicensed carrier and the current occupied by the base station, when determining the last incomplete subframe of the unlicensed carrier Determining the duration information of the unlicensed carrier, determining the location of the last incomplete subframe after the unlicensed carrier is occupied, and confirming that the determined subframe is in the position of the last incomplete subframe is the The last incomplete subframe of the unlicensed carrier.

The occupancy duration information is configured by the base station and carried in the secondary carrier occupation notification, and is sent to the UE; or the occupation duration information is pre-configured on the base station side and the UE side.

Further, when acquiring the encoded data in the TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe, the acquiring unit 703 is specifically configured to: determine the first incomplete sub- The symbol length of the frame and the length of the data symbol; calculating the length of the data symbol of the spliced subframe according to the symbol length of the first incomplete subframe; in the data symbol and the spliced subframe in the first incomplete subframe The encoded data in one TTI is acquired on the data symbol.

Optionally, when determining the symbol length of the first incomplete subframe and the length of the data symbol, the acquiring unit 703 is specifically configured to: perform detection of a filler signal or a preamble signal on the unlicensed carrier, according to Detecting a position of a symbol of the padding signal or the preamble signal on the first incomplete subframe of the unlicensed carrier, calculating a symbol length of the first incomplete subframe, and filling the first incomplete subframe The length of the symbol occupied by the signal or the preamble; calculating the data symbol in the first incomplete subframe according to the symbol length of the first incomplete subframe, the length of the symbol occupied by the padding signal or the preamble signal, and the length of the control symbol The length of the symbol of the first incomplete subframe includes the length of the symbol occupied by the padding signal or the preamble signal, the length of the control symbol, and the length of the data symbol.

Optionally, when determining the symbol length of the first incomplete subframe and the length of the data symbol, the acquiring unit 703 is specifically configured to: determine, according to the unlicensed carrier transmission indication sent by the base station, the non-determined The symbol length of the first incomplete subframe of the licensed carrier and the length of the data symbol in the first incomplete subframe.

If the determining unit 702 determines that the last incomplete subframe of the unlicensed carrier is For a spliced subframe in which an incomplete subframe is spliced, the UE further includes:

The decoding unit 704 is configured to: after the acquiring unit 703 acquires encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on the last from the unlicensed carrier Scheduling information acquired on a PDCCH of an incomplete subframe, and decoding the acquired encoded data; or scheduling based on a PDCCH of a subframe of an authorized carrier corresponding to a last incomplete subframe of the unlicensed carrier Decoding the acquired encoded data; or extracting scheduling information based on the EPDCCH from the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, and the data on the spliced subframe Performing decoding; or decoding the acquired encoded data based on scheduling information acquired from an EPDCCH of a subframe of the licensed carrier corresponding to the first incomplete subframe of the unlicensed carrier and the last incomplete subframe.

If the determining unit 702 determines that the second subframe of the unlicensed carrier is a spliced subframe that is spliced with the first incomplete subframe, the UE further includes:

The decoding unit 704 is configured to: after the acquiring unit 703 acquires encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on the unlicensed carrier Scheduling information acquired on a PDCCH of an incomplete subframe, decoding the obtained encoded data; or based on scheduling obtained from an EPDCCH of the first incomplete subframe and the second subframe of the unlicensed carrier Information to decode the acquired encoded data.

As shown in FIG. 8, the embodiment of the present invention further provides a base station, which is used to implement a method for transmitting a subframe, where the base station includes:

The processor 801 is configured to configure an unlicensed carrier for the UE, determine a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe spliced with the first incomplete subframe; The data within is encoded.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

The transceiver 802 is configured to send the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

Optionally, after the processor 801 determines that the unlicensed carrier is occupied, the transceiver The 802 is further configured to: send, by using the authorized carrier or the unlicensed carrier, a secondary carrier occupation notification to the UE, to notify the UE that the base station currently occupies the starting time of the unlicensed carrier.

When determining the spliced subframe spliced with the first incomplete subframe, the processor 801 is specifically configured to: determine that the last incomplete subframe of the unlicensed carrier is spliced with the first incomplete subframe. Splicing a subframe; or determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

The two splicing schemes are described in detail below.

Option One,

If the processor 801 determines that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, then the transceiver 802 passes the encoded data through the non- Before the first incomplete subframe of the authorized carrier and the spliced subframe thereof are sent to the UE, the processor 801 is specifically configured to: according to the location of the first incomplete subframe after the unlicensed carrier is occupied And determining, by the base station, the occupation duration information of the unlicensed carrier, determining the location of the last incomplete subframe after the unlicensed carrier is occupied.

The transceiver 802 then transmits the encoded data to the UE through the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe.

The occupancy duration information is configured by the base station and carried in the secondary carrier occupation notification, and is sent to the UE; or the occupation duration information is pre-configured on the base station side and the UE side.

Further, in the splicing mode of the first solution, the processor 801 is further configured to: place scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier; or The scheduling information of the data is placed on a PDCCH of a subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier; or the scheduling information of the data is placed at the first of the unlicensed carrier On the EPDCCH of the incomplete subframe and the last incomplete subframe; or, the scheduling information of the data is placed in the authorization of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier On the EPDCCH of the subframe of the carrier.

Option II,

If the processor 801 determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the transceiver 802 passes the encoded data through the unlicensed carrier. Before the first incomplete subframe and the spliced subframe thereof are sent to the UE, the processor 801 is specifically configured to: determine the splicing symbol of the second subframe according to the symbol length M of the first incomplete subframe. a length N; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol, and the sum of M and N is a complete subframe. Symbol length.

The transceiver 802 then transmits the encoded data to the UE through the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

Further, in the splicing mode of the second solution, the processor 801 is further configured to: place scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or The scheduling information of the data is placed on the EPDCCH of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

Further, in the splicing mode of the second solution, the processor 801 is further configured to: schedule the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.

Optionally, before transmitting the encoded data to the UE, the transceiver 802 is further configured to: send a padding signal or a preamble signal to the UE on the unlicensed carrier, to maintain the non- The occupation of the licensed carrier and the location of the first incomplete subframe after the UE is notified that the unlicensed carrier is occupied.

Optionally, after the processor 801 determines the first incomplete subframe after the unlicensed carrier is occupied, the transceiver 802 is further configured to: send an unlicensed carrier transmission indication to the UE, where The unlicensed carrier transmission indication is used to indicate the location of the first incomplete subframe of the unlicensed carrier and the length of the data symbol used for splicing in the first incomplete subframe.

As shown in FIG. 9, an embodiment of the present invention provides a UE, which is used to implement a method for receiving a subframe, where the UE includes:

The transceiver 901 is configured to receive data sent by the base station by using an unlicensed carrier.

The processor 902 is configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

The transceiver 901 is further configured to acquire encoded data in a TTI on a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

Optionally, before receiving the data sent by the base station by using the unlicensed carrier, the transceiver 901 is further configured to: receive a padding signal or a preamble signal sent by the base station by using the unlicensed carrier, the padding signal or the preamble signal And a location for maintaining the occupation of the unlicensed carrier by the base station and notifying the first incomplete subframe of the UE that the unlicensed carrier is occupied;

Correspondingly, when determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the processor 902 is specifically configured to: perform a detection of a padding signal or a preamble signal on the unlicensed carrier, The subframe acknowledgment that the padding signal or the preamble signal is detected is the first incomplete subframe after the unlicensed carrier is occupied by the base station.

Optionally, before the processor 902 determines that the unlicensed carrier is occupied by the base station, the transceiver 901 is further configured to: receive, by the base station, an authorized carrier or a A secondary carrier occupancy notification sent by the unlicensed carrier, where the secondary carrier occupancy notification is used to indicate a starting moment of the base station occupying the unlicensed carrier.

Optionally, when determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the processor 902 is specifically configured to: determine, according to the unlicensed carrier transmission indication sent by the base station, The first incomplete subframe after the unlicensed carrier is occupied by the base station.

When determining the spliced subframe spliced with the first incomplete subframe, the processor 902 is specifically configured to: determine that the last incomplete subframe of the unlicensed carrier is spliced with the first incomplete subframe. Splicing a subframe; or determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

Wherein, when determining the last incomplete subframe of the unlicensed carrier, the processor 902 Specifically, determining, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier that the base station currently occupies, determining the last one after the unlicensed carrier is occupied. The location of the incomplete subframe and the subframe confirmation at the location of the determined last incomplete subframe is the last incomplete subframe of the unlicensed carrier.

The occupancy duration information is configured by the base station and carried in the secondary carrier occupation notification, and is sent to the UE; or the occupation duration information is pre-configured on the base station side and the UE side.

Further, when acquiring the encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor 902 is specifically configured to: determine the first incomplete sub- The symbol length of the frame and the length of the data symbol; calculating the length of the data symbol of the spliced subframe according to the symbol length of the first incomplete subframe; in the data symbol and the spliced subframe in the first incomplete subframe The encoded data in one TTI is acquired on the data symbol.

Optionally, when determining the symbol length of the first incomplete subframe and the length of the data symbol, the processor 902 is specifically configured to: perform detection of a filler signal or a preamble signal on the unlicensed carrier, according to Detecting a position of a symbol of the padding signal or the preamble signal on the first incomplete subframe of the unlicensed carrier, calculating a symbol length of the first incomplete subframe, and filling the first incomplete subframe The length of the symbol occupied by the signal or the preamble; calculating the data symbol in the first incomplete subframe according to the symbol length of the first incomplete subframe, the length of the symbol occupied by the padding signal or the preamble signal, and the length of the control symbol The length of the symbol of the first incomplete subframe includes the length of the symbol occupied by the padding signal or the preamble signal, the length of the control symbol, and the length of the data symbol.

Optionally, when determining the symbol length of the first incomplete subframe and the length of the data symbol, the processor 902 is specifically configured to: determine, according to the unlicensed carrier transmission indication sent by the base station, the non-determined The symbol length of the first incomplete subframe of the licensed carrier and the length of the data symbol in the first incomplete subframe.

If the processor 902 determines that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, then the first incomplete subframe of the unlicensed carrier and After acquiring the encoded data in the TTI on the spliced subframe, the processor 902 is further configured to: obtain the encoded data based on the scheduling information acquired from the PDCCH of the last incomplete subframe of the unlicensed carrier. Decoding; or decoding the acquired encoded data based on scheduling information acquired from a PDCCH of a subframe of the licensed carrier corresponding to the last incomplete subframe of the unlicensed carrier; or based on the unauthorized Scheduling information on the EPDCCH of the first incomplete subframe and the last incomplete subframe of the carrier, and decoding the data on the spliced subframe; or based on the first incompleteness from the unlicensed carrier The scheduling information acquired on the EPDCCH of the subframe of the subframe corresponding to the subframe corresponding to the last incomplete subframe, and the acquired encoded data is decoded.

If the processor 902 determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the first incomplete subframe of the unlicensed carrier and its splicing After acquiring the encoded data in the TTI on the subframe, the processor 902 is further configured to: perform the acquired encoded data based on the scheduling information acquired from the PDCCH of the first incomplete subframe of the unlicensed carrier. Decoding; or decoding the acquired encoded data based on scheduling information acquired from the first incomplete subframe of the unlicensed carrier and the EPDCCH of the second subframe.

Referring to FIG. 10, an embodiment of the present invention provides a method for sending a seed frame, and the implementation process of the method is as follows:

Step 1001: The base station configures an unlicensed carrier for the UE.

The unlicensed carrier is a secondary carrier configured by the base station for the UE.

Step 1002: The base station determines a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe that is spliced with the first incomplete subframe.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

For example, in an actual application, the base station may confirm the start time of the unlicensed carrier to send data through CCA or ECCA. Specifically, the end position of the CCA or ECCA generally does not coincide with the boundary of the subframe. For example, the end position of the CCA or ECCA is at the Yth OFDM symbol of the Xth subframe, where Y is a positive integer less than 14. In particular, when Y is greater than 3, it means CCA Or the ECCA phase occupies the first 3 OFDM symbols in which the PDCCH in the Xth subframe is located, that is, the case where the data of the subframe cannot be scheduled due to the lack of the PDCCH.

In order to improve the use efficiency of the unlicensed carrier by using the incomplete subframe between the start time of the unlicensed carrier and the start position of the next subframe, the embodiment of the present invention proposes that The incomplete subframe is spliced with other subframes of the unlicensed carrier into one complete subframe. Specifically, there may be, but are not limited to, the following two splicing schemes:

Option One,

The base station determines that the last incomplete subframe of the unlicensed carrier is a splice subframe that is concatenated with the first incomplete subframe.

For example, as shown in FIG. 11, it is assumed that the subframe 2 to the subframe 8 on the unlicensed carrier are occupied for a total of 6 milliseconds (unit: ms), wherein the subframe 2 and the subframe 8 are incomplete subframes. The first scheme is to splicing two incomplete subframes before and after the occupation of the unlicensed carrier, subframe 2 and subframe 8, into one complete subframe.

Option II,

The base station determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

For example, as shown in FIG. 12, it is assumed that the subframe 2 to the subframe 8 on the unlicensed carrier are occupied for a total of 6 milliseconds (unit: ms), wherein the subframe 2 and the subframe 8 are incomplete subframes. In the second scheme, the incomplete subframe 2 occupying the unlicensed carrier and the subsequent subframe, the former portion of the subframe 3, are spliced into one complete subframe. Then, the latter part of the subframe 3 and the subframe 8 are both scheduled as incomplete subframes, wherein the scheduling problem of the PDCCH unoccupied incomplete subframes such as the latter part of the subframe 3 and the subframe 8 is existing. There are mature technologies in the technology to solve the problem, and the present invention will not be described again.

It should be noted that the base station can only select one of the splicing schemes at the same time, and the base station and the UE pre-arrange the same splicing scheme.

Optionally, after determining that the unlicensed carrier is occupied, the base station may further send a secondary carrier occupation notification to the UE by using an authorized carrier or the unlicensed carrier, to notify the UE of the base station. At the start time of occupying the unlicensed carrier, the UE parses the received and stored data sent from the unlicensed carrier from the start time. For example, as shown in FIG. 13, the base station transmits a secondary carrier occupancy notification to the served UE using the PDCCH on the grant carrier subframe 3.

Optionally, after determining, by the base station, the first incomplete subframe after the unlicensed carrier is occupied, the base station may further send an unlicensed carrier transmission indication to the UE, where the unlicensed carrier transmission indication is used to indicate The location of the first incomplete subframe of the unlicensed carrier and the length of the data symbol used for splicing in the first incomplete subframe.

Step 1003: The base station encodes data in one TTI.

Step 1004: The base station sends the encoded data to the UE by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.

Specifically, if the first splicing scheme is adopted in the foregoing step 1002, that is, the base station determines that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, then In step 1004, the base station may determine the unlicensed carrier according to the location of the first incomplete subframe after the unlicensed carrier is occupied and the occupied duration information of the unlicensed carrier by the base station. The location of the last incomplete subframe after being occupied, and then the base station sends the encoded data to the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe. Said UE.

The occupancy duration information may be configured by the base station and carried in the secondary carrier occupation notification and sent to the UE. In this case, the occupation duration of the non-authorized carrier occupied by the base station may be not fixed. The occupancy duration is determined by the base station and then notified to the UE. Alternatively, the occupancy duration information may also be pre-configured on the base station side and the user equipment side. In this case, the base station occupies an unlicensed carrier according to the agreed occupation duration.

Further, when the base station places the data in the encoded one TTI on the data symbol of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, the base station further performs the encoded The scheduling information corresponding to the data in one TTI is placed at the position of the control symbols of the first incomplete subframe and the last incomplete subframe. The scheduling information indicates that the data corresponding to the scheduling information is information about which UE is sent to which resource on the unlicensed carrier.

Specifically, there are four ways to implement scheduling information placement:

First: the base station places scheduling information of the data on a PDCCH of a last incomplete subframe of the unlicensed carrier.

For example, as shown in FIG. 14, the base station splices two incomplete subframes on the unlicensed carrier, subframe 2 and subframe 8, into one complete subframe, and adopts a PDCCH of subframe 8 on the unlicensed carrier. The data carried on subframe 2 and subframe 8 of the unlicensed carrier is scheduled. Correspondingly, the UE needs to serially connect the subframe 2 and the subframe 8 on the unlicensed carrier before decoding.

The second type: the base station places the scheduling information of the data on the PDCCH of the subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier.

For example, as shown in FIG. 15, the base station splices two incomplete subframes on the unlicensed carrier, subframe 2 and subframe 8, into one complete subframe, and uses subframe 8 corresponding to the unlicensed carrier. The PDCCH of the subframe on the grant carrier is used to schedule data carried on subframe 2 and subframe 8 of the unlicensed carrier.

Third, the base station places scheduling information of the data on the EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier.

For example, as shown in FIG. 16, the base station splices two incomplete subframes on the unlicensed carrier, subframe 2 and subframe 8, into one complete subframe, and uses subframe 2 and subframe 8 on the unlicensed carrier. EPDCCH to schedule data carried on subframe 2 and subframe 8 of the unlicensed carrier.

The fourth type: the base station places the scheduling information of the data on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.

For example, as shown in FIG. 17, the base station splices two incomplete subframes on the unlicensed carrier, subframe 2 and subframe 8, into one complete subframe, and uses subframe 2 and subframe 8 on the unlicensed carrier. The EPDCCH of the subframe on the corresponding authorized carrier is used to schedule data carried on subframe 2 and subframe 8 of the unlicensed carrier.

In addition, if the second splicing scheme is adopted in the foregoing step 1102, that is, the base station determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, then in step 1104. The base station may determine the second subframe according to the symbol length M of the first incomplete subframe. The splicing symbol length N; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol, and the sum of M and N is one complete The symbol length of the sub-frame. The base station then transmits the encoded data to the UE through the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

Further, the base station places data in the encoded one TTI on the data symbols of the first incomplete subframe of the unlicensed carrier and the data symbols included in the first N symbols of the second subframe. The scheduling information corresponding to the data in the encoded one TTI is also placed at the position of the control symbol of the first incomplete subframe and the control symbol included in the first N symbols of the second subframe.

Specifically, there are two ways to implement scheduling information placement:

First: the base station places scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier.

For example, as shown in FIG. 18, the base station splices the incomplete subframe 2 and the previous portion of the subframe 3 on the unlicensed carrier into one complete subframe, and uses the first n OFDM symbols of the subframe 2 as the PDCCH of the subframe 2. The PDCCH carrying the subframe 2 on the unlicensed carrier is used to schedule data carried on the previous part of the subframe 2 and the subframe 3, where n≤3.

Second: the base station places the scheduling information of the data on the EPDCCH of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.

For example, as shown in FIG. 19, the base station splices the incomplete subframe 2 and the previous part of the subframe 3 on the unlicensed carrier into one complete subframe, and adopts the subframe 2 on the unlicensed carrier and the EPDCCH in the previous part of the subframe 3. The data carried on subframe 2 and the previous part of subframe 3 is scheduled.

Further, after the base station splicing the first N symbols of the second subframe of the unlicensed carrier as the spliced subframe and the first incomplete subframe, the second subframe of the unlicensed carrier may also be used. The last M symbols are scheduled as new incomplete subframes, and the scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.

For example, as shown in FIG. 20, the base station splices the incomplete subframe 2 on the unlicensed carrier and the previous portion of the subframe 3 into one complete subframe for scheduling, and the remaining part after the subframe 3 as a new incomplete. The subframe is scheduled, and the base station vacates the PDCCH as the subframe 3 in the n OFDM symbols starting from the subframe 3, and is used for scheduling data carried on the remaining portion after the subframe 3.

Optionally, before the base station sends the encoded data to the UE, the padding signal or the preamble signal may be sent to the UE on the unlicensed carrier to maintain the occupation of the unlicensed carrier. And notifying the UE to confirm the location of the first incomplete subframe after the unlicensed carrier is occupied according to the detection result of the padding signal or the preamble signal.

Referring to FIG. 21, an embodiment of the present invention further provides a method for receiving a seed frame, and the implementation process of the method is as follows:

Step 2101: The UE receives data sent by the base station through the unlicensed carrier.

The unlicensed carrier is a secondary carrier configured by the base station for the UE.

Optionally, before receiving the data sent by the base station by using the unlicensed carrier, the UE may also receive a padding signal or a preamble signal sent by the base station by using the unlicensed carrier, where the padding signal or the preamble signal is used. Maintaining the occupation of the unlicensed carrier by the base station and notifying the location of the first incomplete subframe after the unlicensed carrier of the UE is occupied.

Specifically, the method for the UE to determine, by using a padding signal or a preamble signal, the first incomplete subframe after the unlicensed carrier is occupied by the base station is: the UE performs a filling signal on the unlicensed carrier or The detection of the preamble signal, the subframe confirmation that the padding signal or the preamble signal is detected is the first incomplete subframe after the unlicensed carrier is occupied by the base station.

And before the UE determines that the unlicensed carrier is occupied by the base station, the UE may further receive the authorized carrier or the unauthorized A secondary carrier occupancy notification sent by the carrier, where the secondary carrier occupancy notification is used to indicate a starting moment of the base station occupying the unlicensed carrier. Since the UE can store the data received from the unlicensed carrier locally, the UE can confirm the correct time to start parsing the data sent on the unlicensed carrier according to the secondary carrier occupancy notification, thereby parsing the valid data.

Step 2102: The UE determines that the unlicensed carrier is occupied by the base station after the first one is not occupied. A complete subframe, and a spliced subframe spliced with the first incomplete subframe.

The first incomplete subframe and the spliced subframe of the unlicensed carrier form a complete subframe.

The UE may determine, according to the unlicensed carrier transmission indication sent by the base station, the first incomplete subframe after the unlicensed carrier is occupied by the base station.

For example, the first incomplete subframe after the unlicensed carrier is occupied by the base station may be pre-defined as the previous subframe in which the unlicensed carrier transmission indication is received.

Specifically, the embodiments of the present invention may have, but are not limited to, the following two splicing schemes:

Option One,

The UE determines that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe.

Specifically, the UE may determine, after the unlicensed carrier is occupied, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier currently occupied by the base station. The location of the last incomplete subframe and the subframe confirmation at the location of the last incomplete subframe determined is the last incomplete subframe of the unlicensed carrier.

The occupancy duration information may be configured by the base station and carried in the secondary carrier occupation notification to be sent to the UE, or may be pre-configured on the base station side and the user equipment side.

Option II,

The UE determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.

It should be noted that the UE can only select one of the splicing schemes at the same time, and the UE and the base station pre-arrange the same splicing scheme.

Step 2103: The UE acquires coded data in one TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.

Specifically, the method for the UE to acquire the encoded data in the TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof is: first determining the symbol of the first incomplete subframe Length and length of the data symbol, then calculate the spell based on the symbol length of the first incomplete subframe The length of the data symbol of the sub-frame is obtained, and finally, the encoded data in one TTI is acquired on the data symbol in the first incomplete subframe and the data symbol in the concatenated subframe.

For example, the UE acquires the occupation duration (including the preamble/padding/data/control portion) of the data transmitted by using the unlicensed carrier for 6 ms, and the starting subframe to start transmission is subframe 2, and the start symbol is subframe 2 In the symbol 5, it can be seen that the UE has received 5 complete subframes and two incomplete subframes before and after, and the UE occupies symbols 5 to 14 on subframe 2 (ie, the first incomplete subframe). (One subframe has 14 symbols) A total of 10 symbol lengths (including the preamble/fill/data/control portion sent within subframe 2). If the spliced subframe of the subframe 2 occupies the last subframe of the unlicensed carrier, as shown in FIG. 11, the UE can confirm that the subframe 8 (ie, the seventh subframe) is the end subframe, and The sum of the symbol lengths of frame 2 and subframe 8 must be 14 symbols, so the total symbol length of subframe 8 is 4 symbols. The data symbol portion in subframe 2 is contained between symbol 5 and symbol 14 of subframe 2, and the data symbol portion in subframe 8 is contained between symbol 1 through symbol 4 of subframe 8. The UE needs to splicing the 10 symbols of the subframe 2 and the 4 symbols of the subframe 8 into one complete subframe, and then deducting the symbol positions of the preamble signal, the padding signal and the control signal, and then performing data decoding. In addition, if the spliced subframe of the subframe 2 is the second subframe occupying the unlicensed carrier, as shown in FIG. 12, the UE can confirm the symbol used for splicing in the subframe 3 (ie, the second subframe) by calculating the UE. The length is 14-10=4 symbols, and the UE needs to splicing the first 4 symbols of the subframe 3 and the 10 symbols of the subframe 2 to form a complete subframe and then decoding. Since the first 4 symbols of subframe 3 may contain n control symbols, n≤3, the n control symbols are used to schedule data transmitted on the last 10 symbols of subframe 3, so the UE may need to be in the subframe. 2 and subtracting the symbol positions of the preamble and the padding signal in the complete subframe after the splicing of the subframe 3 and deducting the positions of the n control symbols, and then performing data decoding, and the data UE carried on the last 10 symbols of the subframe 3 is required. Perform additional decoding.

In this embodiment of the present invention, the UE may determine the symbol length and the length of the data symbol of the first incomplete subframe of the unlicensed carrier in the following two manners:

The first type: the UE performs detection of a padding signal or a preamble signal on the unlicensed carrier, and detects a location of a symbol of a padding signal or a preamble signal according to detecting a first incomplete subframe of the unlicensed carrier. Calculating the symbol length of the first incomplete subframe and the first incomplete subframe Filling a symbol length occupied by the signal or the preamble signal, and calculating the length of the symbol in the first incomplete subframe according to the symbol length of the first incomplete subframe, the symbol length occupied by the padding signal or the preamble signal, and the length of the control symbol. The length of the data symbol; wherein the symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble, a length of the control symbol, and a length of the data symbol.

For example, it is assumed that the UE detects the preamble signal during the Sth to Eth symbols of the Nth subframe of the unlicensed carrier, where E≥S and E and S are positive integers, and the Nth subframe is considered to be the base station occupation. The first incomplete subframe after the unlicensed carrier, the E+1 symbol to the last symbol of the Nth subframe contains the location occupied by the data symbol, or may further include the location occupied by the control symbol. In the first splicing scheme of the present invention, when the spliced subframe of the first incomplete subframe is the last incomplete subframe of the unlicensed carrier by the base station, the E+1th symbol is to the Nth The last symbol of the subframe is the position occupied by the data symbol; and in the second splicing scheme of the present invention, the spliced subframe of the first incomplete subframe is the first time that the base station occupies the unlicensed carrier. In the case of two subframes, the position occupied by the data symbol is obtained after subtracting the n positions occupied by the control symbols from the E+1th symbol to the last symbol of the Nth subframe.

The second type: the UE determines, according to the unlicensed carrier transmission indication sent by the base station, the symbol length of the first incomplete subframe of the unlicensed carrier and the length of the data symbol in the first incomplete subframe .

After the UE obtains the encoded data in the TTI from the first incomplete subframe and the spliced subframe, the UE also needs to extract corresponding scheduling information on the first incomplete subframe and its spliced subframe. The encoded data is decoded.

If in step 2102, the UE determines that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the UE may be based on the unlicensed carrier. The scheduling information acquired on the PDCCH of the last incomplete subframe is used to decode the acquired encoded data. Alternatively, the UE may decode the acquired encoded data based on scheduling information acquired from a PDCCH of a subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier. Alternatively, the UE may be based on the first incomplete subframe and the most from the unlicensed carrier The scheduling information is extracted on the EPDCCH of the latter incomplete subframe, and the data on the spliced subframe is decoded. Alternatively, the UE may decode the acquired encoded data based on scheduling information acquired from an EPDCCH of a subframe of the first carrier of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe. .

If in the foregoing step 2102, the UE determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe, the UE may be based on the unlicensed carrier. The scheduling information acquired on the PDCCH of the incomplete subframe is used to decode the obtained encoded data. Alternatively, the UE decodes the acquired encoded data based on scheduling information acquired from the first incomplete subframe of the unlicensed carrier and the EPDCCH of the second subframe.

In summary, the technical solution provided by the embodiment of the present invention is to splicing an incomplete subframe between a start time after a base station occupies an unlicensed carrier and a start position of a next subframe into another complete frame. The subframe is such that the encoded data of one complete subframe can be carried on two incomplete subframes, and the incomplete subframe can be used to transmit valid data, thereby improving the use efficiency of the unlicensed carrier, and regardless of the incomplete subframe. Which symbol starts transmitting data, the base station only pre-codes the data of one complete subframe in advance, and does not need to traverse all the complete subframes for pre-processing, thereby saving the processing resources of the base station.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. In the implementation of the stream A device that is a process or a plurality of processes and/or a block diagram of a function specified in a block or blocks.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims (69)

1. A base station, comprising:

   a configuration unit, configured to configure an unlicensed carrier for the user equipment;

   a determining unit, configured to determine a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe that is spliced with the first incomplete subframe;

   a coding unit for encoding data in a TTI;

   And a sending unit, configured to send the encoded data to the user equipment by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.
2. The base station according to claim 1, wherein after the determining unit determines that the unlicensed carrier is occupied, the sending unit is further configured to:

   Sending a secondary carrier occupation notification to the user equipment by using the authorized carrier or the unlicensed carrier to notify the user equipment that the base station currently occupies the starting time of the unlicensed carrier.
3. The base station according to claim 1 or 2, wherein, when determining a spliced subframe spliced with the first incomplete subframe, the determining unit is specifically configured to:

   Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

   Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.
4. The base station according to claim 3, wherein if the determining unit determines that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe;

   Before the sending unit sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the determining unit is specifically configured to:

   Determining, according to the location of the first incomplete subframe after the unlicensed carrier is occupied, and the occupation duration information of the unlicensed carrier by the base station, determining that the unlicensed carrier is occupied last The position of the complete subframe;

   The sending unit is specifically configured to:

   Transmitting the encoded data to the user equipment through a symbol of a first incomplete subframe of the unlicensed carrier and a symbol of a last incomplete subframe.
5. The base station according to claim 4, wherein the occupancy duration information is configured by the base station and carried in a secondary carrier occupancy notification and sent to the user equipment; or

   The occupancy duration information is pre-configured on the base station side and the user equipment side.
6. The base station according to claim 4, wherein the base station further comprises:

   a scheduling unit, configured to: place scheduling information of the data on a physical downlink control channel PDCCH of a last incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on the unlicensed carrier The last incomplete subframe corresponds to the PDCCH of the subframe of the authorized carrier; or the scheduling information of the data is placed in the first incomplete subframe and the last incomplete subframe of the unlicensed carrier The physical downlink control channel EPDCCH is enhanced; or the scheduling information of the data is placed on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.
7. The base station according to claim 3, wherein the determining unit determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe;

   Before the sending unit sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the determining unit is specifically configured to:

   Determining, according to the symbol length M of the first incomplete subframe, a splicing symbol length N of the second subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, and controlling The length of the symbol and the length of the data symbol, and the sum of M and N is the symbol length of one complete subframe;

   The sending unit is specifically configured to:

   Transmitting the encoded data to the user equipment by the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.
8. The base station according to claim 7, wherein the base station further comprises:

   a scheduling unit, configured to: place scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or: place scheduling information of the data on the non-authorized carrier The first incomplete subframe of the wave and the EPDCCH of the first N symbols of the second subframe.
9. The base station according to claim 7, wherein the scheduling unit is further configured to:

   Scheduling the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

   The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.
10. The base station according to any one of claims 1 to 9, wherein before the transmitting the encoded data to the user equipment, the sending unit is further configured to:

    Transmitting a padding signal or a preamble signal to the user equipment on the unlicensed carrier to maintain occupation of the unlicensed carrier and notify the user equipment that the first incomplete sub-carrier after the unlicensed carrier is occupied The position of the frame.
11. The base station according to any one of claims 1 to 9, wherein after the determining unit determines the first incomplete subframe after the unlicensed carrier is occupied, the transmitting unit is further used for :

    Sending an unlicensed carrier transmission indication to the user equipment, the unlicensed carrier transmission indication indicating a location of a first incomplete subframe of the unlicensed carrier and a splicing in a first incomplete subframe The length of the data symbol.
12. A user equipment, comprising:

    a receiving unit, configured to receive data sent by the base station by using an unlicensed carrier;

    a determining unit, configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe;

    And an acquiring unit, configured to acquire encoded data in a transmission time interval TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.
13. The user equipment according to claim 12, wherein the receiving unit is further configured to: before receiving data transmitted by the base station by using an unlicensed carrier:

    Receiving, by the base station, a padding signal or a preamble signal sent by the unlicensed carrier, where the padding signal or the preamble signal is used to maintain occupation and notification of the unlicensed carrier by the base station a location of the first incomplete subframe after the user equipment is occupied by the unlicensed carrier;

    After determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the determining unit is specifically configured to:

    Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and confirming that the sub-frame acknowledgment of the padding signal or the preamble signal is the first incomplete subframe after the unlicensed carrier is occupied by the base station.
14. The user equipment according to claim 12 or 13, wherein the receiving unit is further used before the determining unit determines that the unlicensed carrier is occupied by the base station after the first incomplete subframe. :

    And receiving, by the base station, a secondary carrier occupation notification sent by the authorized carrier or the unlicensed carrier, where the secondary carrier occupation notification is used to indicate a starting moment that the base station temporarily occupies the unlicensed carrier.
15. The user equipment according to claim 12 or 13, wherein the determining unit is specifically configured to: when determining the first incomplete subframe after the unlicensed carrier is occupied by the base station:

    Determining, according to the unlicensed carrier transmission indication sent by the base station, a first incomplete subframe after the unlicensed carrier is occupied by the base station.
16. The user equipment according to any one of claims 12-15, wherein, when determining a spliced subframe spliced with the first incomplete subframe, the determining unit is specifically configured to:

    Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

    Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.
17. The user equipment according to claim 16, wherein when determining the last incomplete subframe of the unlicensed carrier, the determining unit is specifically configured to:

    Determining, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier by the base station, determining the last incomplete subframe after the unlicensed carrier is occupied Position and will determine the subframe confirmation on the last incomplete subframe position Is the last incomplete subframe of the unlicensed carrier.
18. The user equipment according to claim 17, wherein the occupancy duration information is configured by the base station and carried in a secondary carrier occupancy notification and sent to the user equipment; or

    The occupancy duration information is pre-configured on the base station side and the user equipment side.
19. The user equipment according to any one of claims 12 to 18, wherein when the encoded data in a TTI is acquired on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, The acquisition unit is specifically used to:

    Determining a symbol length of the first incomplete subframe and a length of the data symbol;

    Calculating a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

    The encoded data in one TTI is acquired on the data symbols in the first incomplete subframe and the data symbols in the spliced subframe.
20. The user equipment according to claim 19, wherein, in determining the symbol length of the first incomplete subframe and the length of the data symbol, the acquiring unit is specifically configured to:

    Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and calculating the first incomplete according to the position of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of the subframe and the symbol length occupied by the padding signal or the preamble signal in the first incomplete subframe;

    Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

    The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.
21. The user equipment according to claim 19, wherein, in determining the symbol length of the first incomplete subframe and the length of the data symbol, the acquiring unit is specifically configured to:

    And determining, according to the unlicensed carrier transmission indication sent by the base station, a symbol length of the first incomplete subframe of the unlicensed carrier and a length of the data symbol in the first incomplete subframe.
22. The user equipment according to claim 16, wherein the determining unit determines that a last incomplete subframe of the unlicensed carrier is a splice spliced with the first incomplete subframe. Frame;

    The user equipment further includes:

    a decoding unit, configured to: after the acquiring unit acquires encoded data in one TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on a last one from the unlicensed carrier Obtaining the acquired encoded data on the physical downlink control channel PDCCH of the complete subframe, or acquiring the encoded data based on the subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier Scheduling information for decoding the acquired encoded data; or extracting scheduling information based on the enhanced physical downlink control channel EPDCCH from the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, The data on the subsequent subframe is decoded; or, based on the scheduling information acquired from the EPDCCH of the subframe of the licensed carrier corresponding to the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, The acquired encoded data is decoded.
23. The user equipment according to claim 16, wherein the determining unit determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe;

    The user equipment further includes:

    a decoding unit, configured to: after the acquiring unit acquires encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, based on the first one from the unlicensed carrier Scheduling information acquired on the PDCCH of the incomplete subframe, and decoding the acquired encoded data; or based on scheduling information obtained from the EPDCCH of the first incomplete subframe and the second subframe of the unlicensed carrier, The acquired encoded data is decoded.
24. A base station, comprising:

    a processor, configured to configure an unlicensed carrier for the user equipment; determine a first incomplete subframe after the unlicensed carrier is occupied, and a spliced subframe spliced with the first incomplete subframe; The data within the time interval TTI is encoded;

    And a transceiver, configured to send the encoded data to the user equipment by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.
25. The base station according to claim 24, wherein said processor determines said non- After the authorized carrier is occupied, the transceiver is also used to:

    Sending a secondary carrier occupation notification to the user equipment by using the authorized carrier or the unlicensed carrier to notify the user equipment that the base station currently occupies the starting time of the unlicensed carrier.
26. The base station according to claim 24 or 25, wherein when determining the spliced subframe spliced with the first incomplete subframe, the processor is specifically configured to:

    Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

    Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.
27. The base station according to claim 26, wherein if said processor determines that a last incomplete subframe of said unlicensed carrier is a splice subframe spliced with said first incomplete subframe;

    Before the transceiver sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is specifically configured to:

    Determining, according to the location of the first incomplete subframe after the unlicensed carrier is occupied, and the occupation duration information of the unlicensed carrier by the base station, determining that the unlicensed carrier is occupied last The position of the complete subframe;

    The transceiver is specifically configured to:

    Transmitting the encoded data to the user equipment through a symbol of a first incomplete subframe of the unlicensed carrier and a symbol of a last incomplete subframe.
28. The base station according to claim 27, wherein the occupancy duration information is configured by the base station and carried in a secondary carrier occupancy notification and sent to the user equipment; or

    The occupancy duration information is pre-configured on the base station side and the user equipment side.
29. The base station according to claim 27, wherein the processor is further configured to:

    And placing scheduling information of the data on a physical downlink control channel PDCCH of a last incomplete subframe of the unlicensed carrier; or placing scheduling information of the data on a last one of the unlicensed carriers The sub-frame corresponds to the PDCCH of the subframe of the authorized carrier; or, the scheduling information of the data is placed in the first incomplete subframe and the last one of the unlicensed carrier The enhanced physical downlink control channel EPDCCH of the incomplete subframe; or, the scheduling information of the data is placed in the first incomplete subframe of the unlicensed carrier and the subcarrier corresponding to the last incomplete subframe On the EPDCCH of the frame.
30. The base station according to claim 26, wherein if the processor determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe;

    Before the transceiver sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is specifically configured to:

    Determining, according to the symbol length M of the first incomplete subframe, a splicing symbol length N of the second subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, and controlling The length of the symbol and the length of the data symbol, and the sum of M and N is the symbol length of one complete subframe;

    The transceiver is specifically configured to:

    Transmitting the encoded data to the user equipment by the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.
31. The base station according to claim 30, wherein the processor is further configured to:

    Placing scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or placing scheduling information of the data on a first incomplete subframe of the unlicensed carrier And on the EPDCCH of the first N symbols of the second subframe.
32. The base station according to claim 30, wherein the processor is further configured to:

    Scheduling the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

    The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.
33. The base station according to any one of claims 24 to 32, wherein before the transmitting the encoded data to the user equipment, the transceiver is further configured to:

    Transmitting a padding signal or a preamble signal to the user equipment on the unlicensed carrier to maintain occupation of the unlicensed carrier and notify the user equipment that the unlicensed carrier is occupied The position of the first incomplete sub-frame.
34. The base station according to any one of claims 24 to 32, wherein after the processor determines that the first incomplete subframe after the unlicensed carrier is occupied, the transceiver is further used for :

    Sending an unlicensed carrier transmission indication to the user equipment, the unlicensed carrier transmission indication indicating a location of a first incomplete subframe of the unlicensed carrier and a splicing in a first incomplete subframe The length of the data symbol.
35. A user equipment, comprising:

    a transceiver, configured to receive data sent by the base station by using an unlicensed carrier;

    a processor, configured to determine a first incomplete subframe after the unlicensed carrier is occupied by the base station, and a spliced subframe that is spliced with the first incomplete subframe;

    The transceiver is further configured to acquire encoded data in a transmission time interval TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof.
36. The user equipment according to claim 35, wherein the transceiver is further configured to: before receiving data transmitted by the base station through the unlicensed carrier:

    Receiving, by the base station, a padding signal or a preamble signal sent by the unlicensed carrier, where the padding signal or preamble signal is used to maintain occupation of the unlicensed carrier by the base station and notify the user equipment of the unlicensed carrier The position of the first incomplete subframe after being occupied;

    After determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the processor is specifically configured to:

    Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and confirming that the sub-frame acknowledgment of the padding signal or the preamble signal is the first incomplete subframe after the unlicensed carrier is occupied by the base station.
37. The user equipment according to claim 35 or 36, wherein said transceiver is further used before said processor determines that said unlicensed carrier is occupied by said base station after said first incomplete subframe :

    Receiving, by the base station, a secondary carrier occupation notification sent by the authorized carrier or the unlicensed carrier, The secondary carrier occupation notification is used to indicate a starting moment that the base station temporarily occupies the unlicensed carrier.
38. The user equipment according to claim 35 or claim 36, wherein, in determining the first incomplete subframe after the unlicensed carrier is occupied by the base station, the processor is specifically configured to:

    Determining, according to the unlicensed carrier transmission indication sent by the base station, a first incomplete subframe after the unlicensed carrier is occupied by the base station.
39. The user equipment according to any one of claims 35 to 38, wherein, when determining a spliced subframe spliced with the first incomplete subframe, the processor is specifically configured to:

    Determining that the last incomplete subframe of the unlicensed carrier is a splice subframe that is spliced with the first incomplete subframe; or

    Determining that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.
40. The user equipment according to claim 39, wherein when determining the last incomplete subframe of the unlicensed carrier, the processor is specifically configured to:

    Determining, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier by the base station, determining the last incomplete subframe after the unlicensed carrier is occupied The location and the determined subframe confirmation at the location of the last incomplete subframe is the last incomplete subframe of the unlicensed carrier.
41. The user equipment according to claim 40, wherein the occupancy duration information is configured by the base station and carried in a secondary carrier occupancy notification and sent to the user equipment; or

    The occupancy duration information is pre-configured on the base station side and the user equipment side.
42. The user equipment according to any one of claims 35 to 41, wherein when the encoded data in a TTI is acquired on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, The processor is specifically used to:

    Determining a symbol length of the first incomplete subframe and a length of the data symbol;

    Calculating a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

    Obtaining a data symbol in the first incomplete subframe and a data symbol in the spliced subframe Encoded data within the TTI.
43. The user equipment according to claim 42, wherein when determining the symbol length of the first incomplete subframe and the length of the data symbol, the processor is specifically configured to:

    Performing detection of the padding signal or the preamble signal on the unlicensed carrier, and calculating the first incomplete according to the position of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of the subframe and the symbol length occupied by the padding signal or the preamble signal in the first incomplete subframe;

    Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

    The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.
44. The user equipment according to claim 42, wherein when determining the symbol length of the first incomplete subframe and the length of the data symbol, the processor is specifically configured to:

    And determining, according to the unlicensed carrier transmission indication sent by the base station, a symbol length of the first incomplete subframe of the unlicensed carrier and a length of the data symbol in the first incomplete subframe.
45. The user equipment according to claim 39, wherein the processor determines that the last incomplete subframe of the unlicensed carrier is a splice subframe that is concatenated with the first incomplete subframe;

    After acquiring the encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is further configured to:

    Decoding the acquired encoded data based on scheduling information acquired from a physical downlink control channel PDCCH of a last incomplete subframe of the unlicensed carrier; or based on a last incomplete subframe from the unlicensed carrier Scheduling information acquired on the PDCCH of the subframe of the corresponding authorized carrier, decoding the acquired encoded data; or based on enhanced physicality of the first incomplete subframe and the last incomplete subframe from the unlicensed carrier Extracting scheduling information on the downlink control channel EPDCCH, and decoding data on the spliced subframe; or based on an authorized carrier corresponding to the first incomplete subframe and the last incomplete subframe of the unlicensed carrier Subframe The scheduling information acquired on the EPDCCH is used to decode the acquired encoded data.
46. The user equipment according to claim 39, wherein the processor determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe;

    After acquiring the encoded data in a TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the processor is further configured to:

    Decoding the acquired encoded data based on scheduling information acquired from a PDCCH of the first incomplete subframe of the unlicensed carrier; or based on a first incomplete subframe and the first from the unlicensed carrier Scheduling information acquired on the EPDCCH of the two subframes, and decoding the acquired encoded data.
47. A method for transmitting a subframe, comprising:

    The base station configures an unlicensed carrier for the user equipment;

    Determining, by the base station, the first incomplete subframe after the unlicensed carrier is occupied, and the spliced subframe spliced with the first incomplete subframe;

    The base station encodes data in a transmission time interval TTI;

    The base station sends the encoded data to the user equipment by using a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.
48. The method according to claim 47, wherein after the base station determines that the unlicensed carrier is occupied, the method further includes:

    And the base station sends a secondary carrier occupation notification to the user equipment by using the authorized carrier or the unlicensed carrier, to notify the user equipment that the base station currently occupies the starting time of the unlicensed carrier.
49. The method according to claim 47 or 48, wherein the base station determines a spliced subframe spliced with the first incomplete subframe, including:

    Determining, by the base station, that the last incomplete subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe; or

    The base station determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe.
50. The method of claim 49, wherein said base station determines said non-grant The last incomplete subframe of the weight carrier is a spliced subframe spliced with the first incomplete subframe;

    The base station sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, including:

    Determining, by the base station, that the unlicensed carrier is occupied according to the location of the first incomplete subframe after the unlicensed carrier is occupied and the occupied duration information of the unlicensed carrier by the base station The position of the last incomplete subframe;

    The base station sends the encoded data to the user equipment by using the symbol of the first incomplete subframe of the unlicensed carrier and the symbol of the last incomplete subframe.
51. The method according to claim 50, wherein the occupancy duration information is configured by the base station and carried in the secondary carrier occupancy notification and sent to the user equipment; or

    The occupancy duration information is pre-configured on the base station side and the user equipment side.
52. The method of claim 50, wherein the method further comprises:

    The base station places scheduling information of the data on a physical downlink control channel PDCCH of a last incomplete subframe of the unlicensed carrier; or

    The base station places scheduling information of the data on a PDCCH of a subframe of an authorized carrier corresponding to a last incomplete subframe of the unlicensed carrier; or

    The base station places the scheduling information of the data on the enhanced physical downlink control channel EPDCCH of the first incomplete subframe of the unlicensed carrier and the last incomplete subframe; or

    The base station places the scheduling information of the data on the EPDCCH of the subframe of the first incomplete subframe of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.
53. The method according to claim 49, wherein if the base station determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first sub-incomplete frame;

    The base station sends the encoded data to the user equipment by using the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, including:

    Determining, by the base station, the spliced symbol length N of the second subframe according to the symbol length M of the first incomplete subframe; wherein the symbol length M of the first incomplete subframe includes a padding signal or a symbol occupied by the preamble signal Length, length of control symbol and length of data symbol, and the sum of M and N The symbol length of a complete sub-frame;

    The base station sends the encoded data to the user equipment by using the symbol of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.
54. The method of claim 53, wherein the method further comprises:

    The base station places scheduling information of the data on a PDCCH of a first incomplete subframe of the unlicensed carrier; or

    The base station places the scheduling information of the data on the EPDCCH of the first incomplete subframe of the unlicensed carrier and the first N symbols of the second subframe.
55. The method of claim 53, wherein the method further comprises:

    The base station schedules the last M symbols of the second subframe of the unlicensed carrier as a new incomplete subframe, and

    The scheduling information of the data scheduled on the last M symbols of the second subframe is placed on the PDCCH of the second subframe of the unlicensed carrier.
56. The method according to any one of claims 47 to 55, wherein before the base station sends the encoded data to the user equipment, the method further includes:

    The base station sends a padding signal or a preamble signal to the user equipment on the unlicensed carrier to maintain the occupation of the unlicensed carrier and notify the user equipment that the unlicensed carrier is occupied first The location of the incomplete sub-frame.
57. The method according to any one of claims 47 to 55, wherein after the base station determines the first incomplete subframe after the unlicensed carrier is occupied, the method further includes:

    Sending, by the base station, an unlicensed carrier transmission indication to the user equipment, where the unlicensed carrier transmission indication is used to indicate a location of the first incomplete subframe of the unlicensed carrier and used in the first incomplete subframe The length of the spliced data symbol.
58. A method for receiving a subframe, comprising:

    The user equipment receives data sent by the base station through the unlicensed carrier;

    Determining, by the user equipment, the first incomplete subframe after the unlicensed carrier is occupied by the base station, and the spliced subframe spliced with the first incomplete subframe;

    The user equipment acquires coded data in a transmission time interval TTI on a first incomplete subframe of the unlicensed carrier and a spliced subframe thereof.
59. The method according to claim 58, wherein before the user equipment receives the data sent by the base station through the unlicensed carrier, the method further includes:

    The user equipment receives a padding signal or a preamble signal sent by the base station by using the unlicensed carrier, where the padding signal or the preamble signal is used to maintain the occupation of the unlicensed carrier by the base station and notify the user equipment Describe the location of the first incomplete subframe after the unlicensed carrier is occupied;

    Determining, by the user equipment, the first incomplete subframe after the unlicensed carrier is occupied by the base station, including:

    The user equipment performs a detection of a padding signal or a preamble signal on the unlicensed carrier, and confirms that the subframe signal of the padding signal or the preamble signal is the first incomplete subtitle of the unlicensed carrier after being occupied by the base station. frame.
60. The method of claim 58 or claim 59, wherein the user equipment determines that the unidentified carrier is occupied by the base station before the first incomplete subframe, and further includes:

    The user equipment receives a secondary carrier occupancy notification sent by the base station by using an authorized carrier or the unlicensed carrier, where the secondary carrier occupation notification is used to indicate a starting time of the base station to occupy the unlicensed carrier.
61. The method according to claim 58 or claim 59, wherein the user equipment determines the first incomplete subframe after the unlicensed carrier is occupied by the base station, and includes:

    The user equipment determines, according to the unlicensed carrier transmission indication sent by the base station, the first incomplete subframe after the unlicensed carrier is occupied by the base station.
62. The method according to any one of claims 58 to 61, wherein the user equipment determines a spliced subframe spliced with the first incomplete subframe, including:

    Determining, by the user equipment, that the last incomplete subframe of the unlicensed carrier is a splice subframe that is concatenated with the first incomplete subframe; or

    Determining, by the user equipment, that the second subframe of the unlicensed carrier is the first incomplete subframe Spliced splice subframes.
63. The method of claim 62, wherein the determining, by the user equipment, the last incomplete subframe of the unlicensed carrier comprises:

    Determining, by the user equipment, the last one after the unlicensed carrier is occupied, according to the location of the first incomplete subframe of the unlicensed carrier and the occupation duration information of the unlicensed carrier currently occupied by the base station The location of the incomplete subframe and the subframe confirmation at the location of the determined last incomplete subframe is the last incomplete subframe of the unlicensed carrier.
64. The method according to claim 63, wherein the occupancy duration information is configured by the base station and carried in the secondary carrier occupancy notification and sent to the user equipment; or

    The occupancy duration information is pre-configured on the base station side and the user equipment side.
65. The method according to any one of claims 58 to 64, wherein the user equipment acquires a transmission time interval TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof. Coded data, including:

    Determining, by the user equipment, a symbol length of the first incomplete subframe and a length of the data symbol;

    The user equipment calculates a length of a data symbol of the spliced subframe according to a symbol length of the first incomplete subframe;

    The user equipment acquires encoded data in one TTI on data symbols in the first incomplete subframe and data symbols in the spliced subframe.
66. The method of claim 65, wherein the user equipment determines a symbol length of the first incomplete subframe and a length of the data symbol, including:

    Performing, by the user equipment, the filling signal or the preamble signal on the unlicensed carrier, and calculating the location of the symbol of the padding signal or the preamble signal detected on the first incomplete subframe of the unlicensed carrier The symbol length of an incomplete subframe and the symbol length occupied by the padding signal or the preamble in the first incomplete subframe, and

    Calculating a length of the data symbol in the first incomplete subframe according to a symbol length of the first incomplete subframe, a symbol length occupied by the padding signal or the preamble signal, and a length of the control symbol;

    The symbol length of the first incomplete subframe includes a padding signal or a symbol length occupied by the preamble signal, a length of the control symbol, and a length of the data symbol.
67. The method of claim 65, wherein the user equipment determines a symbol length of the first incomplete subframe and a length of the data symbol, including:

    Determining, by the user equipment, the symbol length of the first incomplete subframe of the unlicensed carrier and the length of the data symbol in the first incomplete subframe according to the unlicensed carrier transmission indication sent by the base station.
68. The method according to claim 62, wherein the user equipment determines that the last incomplete subframe of the unlicensed carrier is a splice subframe that is concatenated with the first incomplete subframe;

    After the user equipment acquires the coded data in the transmission time interval TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the user equipment further includes:

    Decoding, by the user equipment, the acquired encoded data based on scheduling information acquired from a physical downlink control channel PDCCH of a last one of the unlicensed carriers; or

    Decoding, by the user equipment, the acquired encoded data based on scheduling information acquired from a PDCCH of a subframe of the authorized carrier corresponding to the last incomplete subframe of the unlicensed carrier; or

    Decoding, by the user equipment, scheduling information from the enhanced physical downlink control channel EPDCCH of the first incomplete subframe and the last incomplete subframe of the unlicensed carrier, and decoding data on the spliced subframe; or

    The user equipment decodes the acquired encoded data based on scheduling information acquired from an EPDCCH of a subframe of the first carrier of the unlicensed carrier and the subframe of the authorized carrier corresponding to the last incomplete subframe.
69. The method according to claim 62, wherein the user equipment determines that the second subframe of the unlicensed carrier is a spliced subframe spliced with the first incomplete subframe;

    After the user equipment acquires the coded data in the transmission time interval TTI on the first incomplete subframe of the unlicensed carrier and the spliced subframe thereof, the user equipment further includes:

    Decoding, by the user equipment, the acquired encoded data based on scheduling information acquired from a PDCCH of the first incomplete subframe of the unlicensed carrier; or

    The user equipment decodes the acquired encoded data based on scheduling information acquired from an EPDCCH of the first incomplete subframe and the second subframe of the unlicensed carrier.

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