WO2018126834A1

WO2018126834A1 - Reference signal transmission method and device, and storage medium

Info

Publication number: WO2018126834A1
Application number: PCT/CN2017/114775
Authority: WO
Inventors: 贺海港; 郝鹏; 毕峰; 刘星
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-01-06
Filing date: 2017-12-06
Publication date: 2018-07-12
Also published as: CN108282300A

Abstract

Disclosed are a reference signal transmission method and device, and a storage medium. The method may comprise: predetermining an anchor point location of a reference signal; determining the number of frequency-domain resource element offsets of the reference signal with respect to the anchor point location, and determining the number of time-domain symbol offsets of the reference signal with respect to the anchor point location; determining a time-frequency resource location of the reference signal according to the predetermined anchor point location of the reference signal, the number of frequency-domain resource element offsets of the reference signal with respect to the anchor point location, and the number of time-domain symbol offsets of the reference signal with respect to the anchor point location; and transmitting the reference signal according to the time-frequency resource location of the reference signal.

Description

Method and device for transmitting reference signal, storage medium

Cross-reference to related applications

The present application is filed on the basis of the Chinese Patent Application No. PCT Application No.

Technical field

The present application relates to the field of communications, and in particular, to a method and device for transmitting a reference signal, and a storage medium.

Background technique

With the continuous advancement of radio technology, a variety of radio services have emerged, and the spectrum resources supported by the radio service are limited. In the face of increasing demand for bandwidth, the traditional commercial communication mainly uses 300MHz to 3GHz. The spectrum resources are extremely tight and cannot meet the needs of future wireless communications.

In future wireless communications, communication will be carried out using carrier frequencies higher than those used in fourth-generation (4G) communication systems, such as 28 GHz, 45 GHz, 70 GHz, etc., which have free propagation losses. Large, easily absorbed by oxygen, and affected by rain attenuation, seriously affecting the coverage of high-frequency communication systems. However, since the carrier frequency corresponding to the high-frequency communication has a shorter wavelength, it is possible to ensure that more antenna elements can be accommodated per unit area, and more antenna elements mean that beamforming can be used to improve the antenna gain. Thereby ensuring the coverage performance of high frequency communication.

After the beamforming method, the transmitting end can concentrate the transmitting energy in a certain direction to ensure that the receiving end can obtain a sufficiently strong signal energy, thereby achieving extended coverage and enhancement. The purpose of signal reception quality. Although the beam-forming technique is used to increase the reception quality of the signal to a certain extent, the reception quality of the signal is still not good due to the large attenuation of the high-frequency channel, especially for users who cover the edge of two or more base stations. On the one hand, the channel attenuation is greater due to the greater distance from the base station, resulting in lower signal reception strength. On the other hand, users at the edge of the base station tend to have more interference, resulting in poor reception quality of the signal.

Therefore, in the new generation radio access technology (NR, New RAT), since the attenuation of the high frequency channel is large, the signal reception quality of the channel such as the physical broadcast channel (PBCH) needs to be further improved.

Summary of the invention

In order to solve the above technical problem, the embodiment of the present application provides a method and device for transmitting a reference signal, and a storage medium.

In one aspect, the embodiment of the present application provides a method for transmitting a reference signal, which is applied to a base station, and includes:

Pre-agreed the anchor position of the reference signal;

Determining a number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determining a number of time domain symbol offsets of the reference signal relative to the anchor point location;

And a time domain symbol offset of the reference signal relative to the anchor point position according to the pre-agreed anchor point position of the reference signal, the number of frequency domain resource element offsets of the reference signal relative to the anchor point position a number, determining a time-frequency resource location of the reference signal;

A reference signal is transmitted according to a time-frequency resource location of the reference signal.

On the other hand, the embodiment of the present application provides a method for transmitting a reference signal, which is applied to a terminal, and includes:

Pre-agreed reference signal anchor position;

Determining a number of frequency domain resource element offsets of the reference signal relative to the anchor position, and determining a number of time domain symbol offsets of the reference signal relative to the anchor position;

According to the pre-agreed reference signal anchor position, the reference signal relative to the anchor position Determining the time-frequency resource location of the reference signal by the number of domain resource element offsets, the number of time domain symbol offsets of the reference signal relative to the anchor position;

A reference signal is received according to a time-frequency resource location of the reference signal.

In a further aspect, the embodiment of the present application provides a reference signal transmission apparatus, which is applied to a base station, and includes:

a first configuration module configured to pre-appoint an anchor position of the reference signal;

a first determining module, configured to determine a number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determine a number of time domain symbol offsets of the reference signal relative to the anchor point location; and, according to The pre-agreed anchor point position of the reference signal, the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and the number of time domain symbol offsets of the reference signal relative to the anchor point position Determining a time-frequency resource location of the reference signal;

The sending module is configured to transmit the reference signal according to the time-frequency resource location of the reference signal.

In another aspect, an embodiment of the present application provides a reference signal transmission apparatus, including: a processor and a memory, where the transmission apparatus is applied to a base station, where the memory stores computer executable instructions, and the computer executable instructions are The processor implements the following methods when executed:

Pre-agreed the anchor position of the reference signal;

In a further aspect, the embodiment of the present application provides a reference signal transmission apparatus, which is applied to a terminal, and includes:

a second configuration module configured to pre-appoint an anchor position of the reference signal;

a second determining module, configured to determine a number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determine a number of time domain symbol offsets of the reference signal relative to the anchor point location; and, according to The pre-agreed anchor point position of the reference signal, the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and the number of time domain symbol offsets of the reference signal relative to the anchor point position Determining a time-frequency resource location of the reference signal;

The receiving module is configured to receive the reference signal according to the time-frequency resource location of the reference signal.

In still another aspect, an embodiment of the present application provides a reference signal transmission apparatus, including: a processor and a memory, where the transmission apparatus is applied to a terminal, the memory stores computer executable instructions, and the computer executable instructions are The processor implements the following methods when executed:

Presetting the anchor position of the reference signal;

In still another aspect, an embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the foregoing method for transmitting a reference signal applied to a base station.

In a further aspect, the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the foregoing method for transmitting a reference signal applied to a terminal.

In the embodiment of the present application, by using the time domain position offset of the reference signal, mutual interference of reference signals between adjacent cells can be reduced to a greater extent, and the reference signal is optimized, thereby improving the reference signal and the signal of the corresponding target physical channel. Receive quality, achieving improved signal reception quality of.

On the other hand, by employing different types of signals as reference signals, the additional resource overhead caused by the reference signals for channel demodulation can be reduced, so that the reception quality of the signals can be improved.

In another embodiment, in the embodiment of the present application, the reference signals of different ports sample different types of reference signals, or the same antenna port uses different types of reference signals in different time domain positions and/or different frequency domain positions, so that the reference signal can be reduced. The additional resource overhead caused by the reference signal used for channel demodulation achieves the purpose of saving reference signal overhead, and allows the target data and/or control channel to use more resources for signal transmission, and can use lower modulation. The encoding method improves the signal reception quality.

DRAWINGS

The accompanying drawings are used to provide a further understanding of the technical solutions of the embodiments of the present application, and constitute a part of the specification, which is used together with the embodiments of the present application to explain the technical solutions of the embodiments of the present application, and does not constitute a limitation of the technical solutions of the embodiments of the present application. .

1 is a flowchart of a method for transmitting a reference signal according to an embodiment of the present application;

2 is a flowchart of a method for transmitting a reference signal according to an embodiment of the present application;

3 is a schematic diagram of a time-frequency resource corresponding to an anchor point position of a reference signal according to Embodiment 1 of the present application;

4 is a schematic diagram of time-frequency resources after a time domain offset and a frequency domain offset of a reference signal according to Embodiment 1 of the present application;

5 is a schematic diagram of time-frequency resources corresponding to anchor positions of reference signals corresponding to the second and third embodiments of the present application;

6 is a schematic diagram of time-frequency resources after a time domain offset and a frequency domain offset of a reference signal corresponding to the second and third embodiments of the present application;

7 is a time-frequency resource corresponding to an anchor position of a reference signal corresponding to the third embodiment of the present application. schematic diagram;

8 is a schematic diagram of time-frequency resources after frequency domain offset of a reference signal corresponding to the third embodiment of the present application;

9 is a schematic diagram of different types of signals corresponding to the fourth embodiment of the present application used as reference signals of different ports;

10 is a schematic diagram of different types of signals corresponding to the fifth embodiment of the present application as reference signals of different ports;

11 is a schematic diagram of reference signals of different types of signals corresponding to the same port used in Embodiment 6 of the present application;

12 is a schematic structural diagram of a transmission apparatus of a reference signal applied to a base station according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a transmission apparatus of a reference signal applied to a terminal according to an embodiment of the present application.

detailed description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

As shown in FIG. 1 , the embodiment of the present application provides a method for transmitting a reference signal, which is applied to a base station, and includes:

Step 101, pre-arranging an anchor position of the reference signal;

Here, the time-frequency resource position in the anchor position of the reference signal is a fixed plurality of positions, and at least an anchor position of the reference signal is pre-agreed between the base station and the terminal to ensure the base station and the terminal. The anchor position of the predefined reference signal can be known at the end.

Step 102: The base station determines a frequency domain resource element offset number of the reference signal relative to the anchor point position, and determines a number of time domain symbol offsets of the reference signal relative to the anchor point position;

Step 103: The base station determines the reference signal according to the pre-agreed reference signal anchor position, the frequency domain resource element offset of the reference signal relative to the anchor position, and the number of time domain symbol offsets of the reference signal relative to the anchor position. Frequency resource location;

Step 104: The base station transmits a reference signal according to a time-frequency resource location of the reference signal.

In this embodiment, the reference signal is one of the following or a combination of any number:

Cell-Specific Reference Signal (CRS);

Downlink demodulation reference signal (DMRS);

Primary synchronization signal (PSS);

Primary synchronization signal (SSS).

In this embodiment, before the transmitting the reference signal, the reference signal corresponding to the different port may be set to a multiplexing mode as follows: space division multiplexing, code division multiplexing, time division multiplexing, frequency division multiplexing , time division and frequency division multiplexing.

In this embodiment, the target physical channel used for demodulation is one or more of the following: a physical downlink control channel (PDCCH), and a physical downlink shared channel (PDSCH). , a physical broadcast channel (PBCH), and a broadcast channel other than the physical broadcast channel. The reference signal is used on the terminal side to demodulate a signal carried by the target physical channel.

In this embodiment, before the transmitting the reference signal, the reference signal corresponding to the different ports may be configured to be the same type.

In this embodiment, before the transmitting the reference signal, the method further includes: a reference corresponding to different ports The signals are configured in different types.

In this embodiment, before the transmitting the reference signal, the method further includes: the reference signals corresponding to the same port are configured to be the same type at different time-frequency resource locations.

In this embodiment, before the transmitting the reference signal, the reference signal corresponding to the same port is configured to be of a different type at different time-frequency resource locations.

In this embodiment, the determining the time-frequency resource location of the reference signal may include: according to the temporary identifier of the cell wireless network

Determining the frequency domain resource element offset number v _shift and a frequency domain location resource location k of the reference signal within a channel bandwidth or a target physical channel bandwidth range; wherein the frequency domain resource element offset number v _shift is 0 or An integer not less than one. The value of v _shift is at least pre-agreed between the base station and the terminal, so that the base station and the terminal can obtain the value of the v _shift .

Determining the number of shifts in the time domain symbol, μ _shift , and the time domain symbol position 1 of the reference signal within the time slot range or within the target physical channel time domain symbol range.

Specifically, the time domain symbol position 1 of the reference signal in the time slot range or the target physical channel time domain symbol range is determined by the following formula:

l=(μ+μ _shift )mod F;

Where μ is the time domain symbol position of the reference signal anchor position within the time slot range or the target physical channel time domain symbol range, μ _shift represents the number of time domain symbol offsets of the reference signal, and P is an integer not less than 1 and a divisor of the number of time domain symbols for a time slot or target physical channel;

The number of time domain symbol offsets of the reference signal, μ _shift, may be temporarily identified by a cell wireless network.

And P are determined based on the following formula:

Alternatively, the time-domain symbol offset number μ _shift may be a pre-agreed fixed value, and the fixed value is 0 or an integer not less than 1. The value of μ _shift is at least predetermined between the base station and the terminal, so that the base station and the terminal can obtain the value of the μ _shift .

In this embodiment, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and determining the number of time domain symbol offsets of the reference signal relative to the anchor point position may include: the reference signal is different type When different types of reference signals use the same frequency domain resource element offset number and time domain symbol offset number.

In this embodiment, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and determining the number of time domain symbol offsets of the reference signal relative to the anchor point position, includes one or two of the following: 1) different The reference signals of the type use different frequency domain resource element offset numbers; 2) different types of the reference signals use different time domain symbol offset numbers.

In this embodiment, the transmitting the reference signal may include: when the reference signal types corresponding to the same port are different, a part of the types of the reference signals are embedded in a time-frequency region where the target physical channel is located, and another part of the type is The reference signal is placed at a time-frequency resource location other than the time-frequency location where the target physical channel is located.

In this embodiment, the transmitting reference signal may include: one of the different types of reference signals, where a part of the type of reference signals is located in a time domain position adjacent to a time domain of the target physical channel, and another partial type of reference signal The other side time domain location adjacent to the time domain of the target physical channel.

In this embodiment, the transmitting reference signal may include: the different types of reference signals, some types of signals are embedded in a time-frequency region where the target physical channel is located, and another type of reference signal is placed in the target. The time-frequency resource location other than the time-frequency location where the physical channel is located.

In this embodiment, the transmitting the reference signal may include: when a port number is pre-agreed, the reference signal is transmitted by the port corresponding to the pre-agreed port number.

In this embodiment, before the transmitting the reference signal, the method further includes: when a plurality of port numbers are pre-agreed, selecting one of the plurality of port numbers; the transmitting reference signal The number may include: transmitting the reference signal by using the port corresponding to the selected one of the number of ports.

Here, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor position may include: adopting different frequency domain resource element number offset numbers for the multiple port numbers.

Here, the determining the number of time domain symbol offsets of the reference signal relative to the anchor position may include: adopting different time domain symbol number offset numbers for the plurality of port numbers.

In addition, the embodiment of the present application provides a method for transmitting a reference signal, as shown in FIG. 2, which is applied to a terminal, and may include:

Step 201, pre-arranging an anchor position of the reference signal;

Step 202: The terminal determines a frequency domain resource element offset number of the reference signal relative to the anchor point position, and determines a number of time domain symbol offsets of the reference signal relative to the anchor point position;

Step 203: The terminal determines the reference signal according to the pre-agreed reference signal anchor position, the frequency domain resource element offset of the reference signal relative to the anchor position, and the time domain symbol offset of the reference signal relative to the anchor position. Frequency resource location;

Step 204: The terminal receives a reference signal according to a time-frequency resource location of the reference signal.

In some implementations, the reference signal is one or a combination of any of the following: CRS, DMRS, PSS, SSS.

In some implementations, after the receiving the reference signal, the method further includes: demodulating, by the reference signal, a signal carried by the target physical channel; where the target physical channel includes one or more of the following: PDCCH, PDSCH , other broadcast channels than PBCH and PBCH.

In some implementations, before the receiving the reference signal, the method further includes: configuring reference signals corresponding to different ports to be of the same type.

In some implementations, before the receiving the reference signal, the method further includes: configuring reference signals corresponding to different ports to be different types.

In some implementations, before the receiving the reference signal, the method further includes: corresponding to the same port The reference signals are configured to the same type at different time-frequency resource locations.

In some implementations, before the receiving the reference signal, the method further includes: the reference signals corresponding to the same port are configured to be different types at different time-frequency resource locations.

In some implementations, the determining a time-frequency resource location of the reference signal includes: according to a cell wireless network temporary identifier

Determining the frequency domain resource element offset number v _shift and the frequency domain location resource location k of the reference signal within a channel bandwidth or a target physical channel bandwidth range; wherein the frequency domain resource element offset number is 0 or not less than An integer of 1.

Specifically, the time domain symbol position l of the reference signal in the time slot range or the target physical channel time domain symbol range is: l=(μ+μ _shift ) mod F; wherein μ is the anchor position of the reference signal The time _shift symbol position within the time slot range or the target physical channel time domain symbol range, μ _shift represents the number of time domain symbol offsets of the reference signal, P is an integer not less than 1 and is the time slot or the target physical channel time domain a divisor of the number of symbols;

And P are determined based on the following formula:

Alternatively, the time-domain symbol offset number μ _shift may be taken as a pre-agreed fixed value, and the fixed value is 0 or an integer not less than 1.

In some implementations, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determining the number of time domain symbol offsets of the reference signal relative to the anchor point location, including: the reference signal is of a different type When different types of reference signals use the same frequency domain resource element offset number and time domain symbol offset number.

In some implementations, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor position, and determining the number of time domain symbol offsets of the reference signal relative to the anchor position, includes one or both of the following: 1) Different types of the reference signals use different frequency domain resource element offset numbers; 2) different types of the reference signals use different time domain symbol offset numbers.

In some implementations, the receiving the reference signal includes: when receiving the different types of reference signals by using the same port, part of the reference signals of the different types of reference signals are embedded in a time-frequency region where the target physical channel is located. Another part of the type of reference signal is placed at a time-frequency resource location other than the time-frequency location where the target physical channel is located.

In some implementations, the receiving the reference signal includes: when different types of reference signals are received by using different ports, part of the reference signals of the different types of reference signals are located in a time domain adjacent to the target physical channel. Position, another part of the type of reference signal is located at the other side time domain location adjacent to the time domain of the target physical channel.

In some implementations, the receiving the reference signal includes: when different types of reference signals are received by using different ports, part of the reference signals of the different types of reference signals are embedded in a time-frequency region where the target physical channel is located. Another part of the type of reference signal is placed at a time-frequency resource location other than the time-frequency location where the target physical channel is located.

In some implementations, the receiving the reference signal includes: when a port number is pre-agreed, the reference signal is received according to the pre-agreed number of ports.

In some implementations, the receiving the reference signal includes: when a plurality of port numbers are pre-agreed, channel estimation is performed on the reference signal according to the multiple port numbers, and the target is detected by using the channel estimation result. When the signal carried by the physical channel can detect the signal carried by the target physical channel under the number of ports, the reference signal is received by the port corresponding to the number of the port.

The signal carried by the target physical channel may be data or control signaling carried on the target physical channel, and the data or control signaling may be demodulated by the reference signal.

In some implementations, the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor position comprises: employing different frequency domain resource element number offsets for the plurality of port numbers.

In some implementations, the determining the number of time domain symbol offsets of the reference signal relative to the anchor position comprises using a different number of time domain symbol number offsets for the plurality of port numbers.

The embodiments of the present application are described in detail below in conjunction with specific embodiments.

In high-frequency wireless communication, in order to compensate for the high-frequency channel attenuation, it is necessary to introduce a beamforming technique. After the beamforming method is adopted, the transmitting end can concentrate the transmitting energy in a certain direction, thereby ensuring that the receiving end can obtain a sufficiently strong signal energy, thereby achieving the purpose of expanding the coverage and enhancing the signal receiving quality. Although the beam-forming technique is used to increase the reception quality of the signal to a certain extent, due to the large attenuation of the high-frequency channel, the reception quality of the signal is still not high, especially for users who cover the edge of two or more base stations.

In the present application, by performing time domain and/or frequency domain offset on the reference signals of neighboring base stations, mutual interference between adjacent cell reference signals can be avoided. In the related art, the reference signal has only frequency domain offset technology and no time domain offset technique. In the embodiment of the present application, the mutual interference of reference signals between adjacent cells can be reduced to a greater extent by the time domain location offset technology of the reference signal, so that the reception quality of the signal can be improved.

The embodiment of the present application can reduce the additional resource overhead caused by the reference signal used for channel demodulation by referring to the signal. In the related art, for reference signals for data and/or control demodulation, different ports use the same type of reference signals (for example, using CRS as a reference signal), and reference signals of the same port are also used at different time-frequency resource locations. The same type of reference signal. In the embodiment of the present application, different types of reference signals are sampled by reference signals of different ports, or different types of reference signals are used in different time domain positions and/or frequency domain positions of the same antenna port, so that the reference signal overhead can be saved. The target data and/or control channel can use more resources for signal transmission, and can use a lower modulation coding method, thereby improving the signal. The quality of reception.

Example 1

In this embodiment, a scenario of "2 symbols, 1 antenna port, time shift + frequency offset" is taken as an example.

As shown in FIG. 3, this embodiment describes the time-frequency resource location corresponding to the anchor position of the reference signal. As shown in FIG. 4, the time-frequency resource position of the reference signal after the time domain and the frequency domain position offset is performed based on the anchor position of the reference signal is described.

In this embodiment, there is a reference signal of one antenna port, and the reference signal of the one antenna port is used for demodulation of the PBCH.

As shown in FIG. 3 and FIG. 4, the time domain length of the reference signal of one antenna port is one time domain symbol. The time domain length of the physical broadcast channel is two time domain symbol lengths. Moreover, the reference signal of one port is located in a time-frequency region within a time-frequency resource range in which the physical broadcast channel is located, but the signal carried by the physical broadcast channel does not overlap on the time-frequency resource. The reference signal has only one type of reference signal, and the corresponding reference signal type is a demodulation reference signal (DMRS).

In this embodiment, the time domain symbol position in the slot range or the target physical channel time domain symbol range is calculated according to the cell radio network temporary identifier NIcDell according to the following formula (1):

l=(μ+μ _shift )mod P (1)

Where μ is the time domain symbol position of the anchor position of the reference signal in the time domain symbol range of the physical broadcast channel, and μ _shift represents the number of time domain symbol offsets of the reference signal, P is a fixed value and the fixed value is not less than 1 An integer, and is a divisor of the number of time domain symbols for the physical broadcast channel.

The frequency domain location resource location k of the reference signal of the port in the frequency domain of the physical broadcast channel may be obtained by the following formula (2):

k=N·m+(v+v _shift )mod N (2)

Wherein, N is a fixed value, an integer not less than 1, v represents a frequency domain resource position of an anchor point position of the reference signal in a frequency domain of the physical broadcast channel, and v _shift represents a frequency domain resource element offset of the reference signal,

Q is a fixed value and the fixed value is an integer not less than one,

The bandwidth for the physical broadcast channel.

Where v _shift can be temporarily identified by the cell wireless network

And N determined, as shown in the following formula (3):

After determining the time domain and the frequency domain resource location of the reference signal, the base station transmits the reference signal and the signal carried by the physical broadcast channel according to the time-frequency resource location of the reference signal, and the terminal side performs channel on the reference signal of each antenna port. Estimate, thereby obtaining an estimate of the channel. The channel to be estimated here is the actual channel, or the equivalent channel including the precoding on the actual channel basis. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

Example 2

In this embodiment, a scenario of "2 symbols, 2 antenna ports, time offset + frequency offset" is taken as an example.

In this embodiment, as shown in FIG. 5, it is a schematic diagram of a time-frequency resource location corresponding to an anchor position of a reference signal. As shown in FIG. 6 , it is a schematic diagram of a time-frequency resource position of a reference signal after time domain and frequency domain position offset based on an anchor position of a reference signal.

In this embodiment, there are reference signals of two ports, and reference signals of the two ports are used for demodulation of the PBCH, respectively.

In FIGS. 5 and 6, the time domain lengths of the reference signals of the two ports are all one time domain symbol. The time domain length of the physical broadcast channel is two time domain symbol lengths. Moreover, the reference signals of the two ports are all located in the time-frequency region within the time-frequency resource range where the physical broadcast channel is located, but the signal carried by the physical broadcast channel does not overlap on the time-frequency resource. The reference signal has only one type of reference signal, and the corresponding reference signal type is a demodulation reference signal (DMRS).

In this embodiment, the temporary identifier of the cell wireless network may be based on the following formula (4).

Calculate the time domain symbol position of the reference signal of a port in the time slot range or the time domain symbol range of the target physical channel:

l=(μ+μ _shift )mod P (4)

Where μ is the time domain symbol position of the anchor position of the reference signal in the time domain symbol range of the physical broadcast channel, μ _shift represents the number of time domain symbol offsets of the reference signal, P is a fixed value, an integer not less than 1, and a divisor of the number of time domain symbols for the physical broadcast channel;

Where μ _shift can be temporarily identified by the cell wireless network based on the following formula (5)

And P determines:

The frequency domain location resource location k of the reference signal of the port in the frequency domain of the physical broadcast channel may be obtained by using the following formula (6):

k=N·m+(v+v _shift )mod N (6)

Q is a fixed value and the fixed value is an integer not less than one,

The bandwidth for the physical broadcast channel.

Where v _shift can be temporarily identified by the cell wireless network

And N determined, as shown in the following formula (3):

After determining the time domain and the frequency domain resource location of the reference signal, the base station transmits the reference signal and the signal carried by the physical broadcast channel according to the time-frequency resource location of the reference signal, and the terminal side performs channel on the reference signal of each antenna port. Estimate, thereby obtaining an estimate of the channel being used. The channel to be estimated here is the actual channel, or the equivalent signal including the precoding based on the actual channel. Road. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

Example 3

In this embodiment, the base station can select different antenna port numbers. When the number of antenna ports is 1, the reference signal has a frequency domain position offset, and sometimes the domain position offset; when the number of antenna ports is 2, the reference signal only has a frequency domain offset. shift.

In this embodiment, the number of antenna ports is not a fixed value, and the base station may select one of the plurality of predefined antenna port numbers, and then transmit the reference signal and the signal carried by the physical broadcast channel. The terminal performs channel estimation on the reference signal according to the predefined number of different antenna ports, and uses the channel estimation result to detect the signal carried by the physical broadcast channel. If the terminal can successfully detect the signal carried by the physical broadcast channel under a predefined number of reference signal ports, the terminal considers that the number of the predefined reference signal ports is the number of reference signal ports actually used by the base station.

In this embodiment, the case where the number of selected ports of the corresponding base station is 1 is as shown in FIG. 5 and FIG. 6 , and FIG. 7 and FIG. 8 correspond to the case where the number of selected ports of the base station is 2. FIG. 5 is a schematic diagram of a time-frequency resource location corresponding to an anchor position of a reference signal in the case where the antenna port is 1. 6 is a schematic diagram of a time-frequency resource position after a frequency domain and a time domain offset of a reference signal relative to an anchor position in the case where the antenna port is 1. 7 is a schematic diagram of a time-frequency resource location corresponding to an anchor position of a reference signal in the case where the antenna port is 2. FIG. 8 is a schematic diagram showing the time-frequency resource position after the frequency domain and the time domain offset of the reference signal relative to the anchor position in the case where the antenna port is 2.

In this embodiment, the number of ports selected by the base station is different, and the number of frequency domain position offsets and the number of time domain position offsets of the reference signal used may be different.

When the number of reference signal ports selected by the base station is 1, the number of offsets of the frequency domain resource element (RE) of the reference signal relative to the anchor position, v _shift and the number of time domain symbol offsets, μ _{shift are} as shown in FIGS. 5-6, that is, as follows Equations (8) and (9):

among them,

It is a temporary identifier of the cell wireless network.

When the number of reference signal ports selected by the base station is 2, the number of offsets of the frequency domain resource element (RE) of the reference signal relative to the anchor position, v _shift and the number of time domain symbol offsets, μ _{shift are} as shown in FIGS. 7-8, that is, as follows Equations (10) and (11):

μ _shift =0 (11)

After determining the μ _shift and the v _shift , under the condition that the number of reference signal ports selected by the base station is determined, the reference signal is in the time slot range or the time domain symbol position in the range of the target physical channel time domain symbol, and the port The frequency domain location resource location k of the reference signal in the frequency domain of the physical broadcast channel.

The time domain symbol position l can be obtained by the following equation (12):

l=(μ+μ _shift )mod F (12)

Where μ is the time domain symbol position of the anchor position of the reference signal in the time domain symbol range of the physical broadcast channel, μ _shift represents the number of time domain symbol offsets of the reference signal, P is a fixed value, an integer not less than 1, and The approximate number of time domain symbols for the physical broadcast channel.

The frequency domain location resource location k of the reference signal of the port in the frequency domain of the physical broadcast channel can be obtained by the following formula (13):

k=N·m+(v+v _shift )mod N (13)

Wherein, N is a fixed value, an integer not less than 1, v represents a frequency domain resource position of an anchor point position of the reference signal in a frequency domain of the physical broadcast channel, and v _shift represents a number of resource elements of the reference signal offset,

Q is a fixed value, and the fixed value is an integer not less than one,

The bandwidth for the physical broadcast channel.

After determining the time domain and the frequency domain resource location of the reference signal, the base station sends the reference signal and the signal carried by the physical broadcast channel according to the time-frequency resource location of the reference signal, and the terminal side performs channel estimation on the reference signal of each antenna port. , thereby obtaining an estimate of the channel being used. The channel to be estimated here is the actual channel, or the equivalent channel including the precoding on the actual channel basis. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

Example 4

In this embodiment, the corresponding situation is: the reference signals of the two ports, the reference signal has no position offset in the time domain and the frequency domain (ie, the offset is 0), and the reference signals of different ports use different types of reference signals. The reference signal type corresponding to the first antenna port is a secondary synchronization signal (SSS), and the reference signal type corresponding to the second antenna port is a demodulation reference signal (DMRS).

In this embodiment, as shown in FIG. 9, there are reference signals of two ports, and reference signals of the two ports are respectively used for demodulation of a physical broadcast channel (PBCH).

As shown in FIG. 9, the time domain lengths of the reference signals of the first antenna port and the second antenna port are all one time domain symbol. The time domain length of the physical broadcast channel is also one time domain symbol length. The reference signal corresponding to the first antenna port is located in a time-frequency region outside the time-frequency resource range where the physical broadcast channel is located, and the reference signal corresponding to the second antenna port is located in a time-frequency region within a time-frequency resource range where the physical broadcast channel is located. The area, but the signal carried by the physical broadcast channel does not overlap on the time-frequency resource. In addition, the two antenna ports respectively use different types of reference signals, the first antenna port uses the primary synchronization signal as the reference signal, and the second antenna port uses the demodulation reference signal (DMRS) as the reference signal.

In this embodiment, the base station does not perform time domain and frequency domain offset on the reference signals of the antenna ports, that is, the anchor point position of the reference signal, and the number of frequency domain position offsets and the time domain position offset used are both Fixed value is 0.

The base station transmits the reference signal and the physical broadcast channel according to the reference signal position shown in FIG. After the signal is loaded, the terminal side performs channel estimation on the reference signal of each antenna port, thereby obtaining an estimated value of the channel. The channel to be estimated here is the actual channel, or the equivalent channel including the precoding on the actual channel basis. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

Example 5

In this embodiment, the reference signals of the two ports have no time domain position offset and frequency domain position offset (ie, the offset number is 0), and the reference signals of different ports use different types of reference signals. The reference signal type corresponding to the first antenna port is a primary synchronization signal (PSS), and the reference signal type corresponding to the second antenna port is a secondary synchronization signal (SSS). And, the two reference signals are respectively located on both sides of the physical broadcast channel.

In this embodiment, as shown in FIG. 10, there are two port reference signals, and the reference signals of the two ports are respectively used for demodulation of a physical broadcast channel (PBCH). The reference signals of the two ports are respectively located on two sides of the physical broadcast channel.

In FIG. 10, the time domain lengths of the reference signals of the first antenna port and the second antenna port are all one time domain symbol. The time domain length of the physical broadcast channel is also one time domain symbol length. Moreover, the reference signals corresponding to the two antenna ports are all located in a time-frequency region outside the time-frequency resource range where the physical broadcast channel is located. In addition, the two antenna ports respectively use different types of reference signals, the first antenna port uses the primary synchronization signal as the reference signal, and the second antenna port uses the secondary synchronization signal as the reference signal.

After the base station transmits the reference signal and the signal carried by the physical broadcast channel according to the reference signal position shown in FIG. 10, the terminal side performs channel estimation on the reference signal of each antenna port, thereby obtaining an estimated value of the channel. The channel to be estimated here is the actual channel, or the actual channel basis. The precoding equivalent channel is included. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

Example 6

In this embodiment, the same port reference signal, part of the frequency domain position uses PSS or SSS as the reference signal, and the other frequency domain position uses DMRS as the reference signal.

In this embodiment, the reference signals of the two ports have no time domain position offset and frequency domain position offset (ie, the number of offsets is 0). For the same port reference signal, different frequency domain locations use different reference signal types. For example, the partial frequency domain of the reference signal corresponding to the first antenna port uses PSS, and the remaining frequency domain locations use the corresponding reference signal type as DMRS.

In this embodiment, as shown in FIG. 11, there are reference signals of two ports, and the reference signals of the two ports are respectively used for demodulation of a physical broadcast channel (PBCH).

In FIG. 11, the time domain lengths of the reference signals of the first antenna port and the second antenna port are all one time domain symbol. The time domain length of the physical broadcast channel is also one time domain symbol length. A reference signal of each antenna port has a part of the reference signal located in a time-frequency region outside the time-frequency resource range where the physical broadcast channel is located, and a part of the reference signal is located in a time-frequency region within a time-frequency resource range in which the physical broadcast channel is located. For the reference signal in the time-frequency region falling within the time-frequency resource range in which the physical broadcast channel is located, the signal carried by the physical broadcast channel does not overlap on the time-frequency resource.

In addition, each antenna port consists of two types of reference signals. For the reference signal of the first antenna port, a part of the frequency domain position uses the primary synchronization signal as a reference signal, and another part of the frequency domain position uses a demodulation reference signal (DMRS) as a reference signal. For the reference signal of the second antenna port, a part of the frequency domain position adopts SSS as a reference signal, and another part of the frequency domain position uses a demodulation reference signal (DMRS) as a reference signal.

In this embodiment, the base station does not perform time domain offset and frequency domain offset on the reference signals of the antenna ports, that is, the anchor position of the reference signal, the number of frequency domain position offsets and the time domain position used. The number of offsets is a fixed value of zero.

After the base station transmits the reference signal and the signal carried by the physical broadcast channel according to the reference signal position shown in FIG. 11, the terminal side performs channel estimation on the reference signal of each antenna port, thereby obtaining an estimated value of the channel. The channel to be estimated here is the actual channel, or the equivalent channel including the precoding on the actual channel basis. After obtaining the channel estimation result, the terminal demodulates the signal carried by the physical broadcast channel by using the obtained channel information.

The embodiment of the present application further provides a reference signal transmission device, which is applied to a base station, as shown in FIG. 12, and may include:

The first configuration module 121 is configured to pre-appoint a reference signal anchor position;

The first determining module 122 is configured to determine a frequency domain resource element offset number of the reference signal relative to the anchor point position, and determine a number of time domain symbol offsets of the reference signal relative to the anchor point position; and, according to the pre-agreed reference signal Determining the location of the anchor signal, the number of frequency domain resource elements offset of the reference signal relative to the anchor point position, and the number of time domain symbol offsets of the reference signal relative to the anchor point position, and determining the time-frequency resource location of the reference signal;

The sending module 123 is configured to transmit the reference signal according to the time-frequency resource location of the reference signal.

In some implementations, the sending module 123 may be configured to transmit a reference signal by using one or more ports. The first configuration module 121 may be configured to respond when using multiple ports to transmit reference signals. The reference signal of the port sets the same anchor position or sets a different anchor position corresponding to the reference signal of the different port.

In some implementations, the first configuration module 121 can be further configured to perform one of the following:

The reference signals corresponding to different ports are configured to be the same type;

The reference signals corresponding to different ports are configured as different types;

The reference signals corresponding to the same port are configured to be of the same type at different time-frequency resource locations;

The reference signals corresponding to the same port are configured to different types at different time-frequency resource locations.

In some implementations, the first determining module 122 is specifically configured to determine a time-frequency resource location of the reference signal by: a temporary identifier of the cell wireless network.

Specifically, the first determining module 122 is specifically configured to determine the time domain symbol position 1 by:

The time domain symbol position 1 of the reference signal within the time slot range or within the target physical channel time domain symbol range is determined by the following equation:

l=(μ+μ _shift )mod F;

Wherein said reference signal is time-domain symbol μ _shift offset number by a cell radio network temporary identity

And P determines:

Alternatively, the time-domain symbol offset number μ _shift is a predetermined fixed value, and the fixed value is 0 or an integer not less than 1.

In some implementations, the first determining module 122 is specifically configured to determine, by using one or a combination of the following two, a frequency domain resource element offset of the reference signal relative to the anchor position, and a reference signal relative to the anchor position. Number of time domain symbol offsets:

When the reference signals are of different types, different types of reference signals use the same frequency domain resource element offset number and time domain symbol offset number;

Different types of the reference signals use different frequency domain resource element offset numbers;

Different types of the reference signals use different numbers of time domain symbol offsets.

In some implementations, the sending module 123 is specifically configured to transmit a reference signal, including one of the following:

In the different types of reference signals, a part of the type of the reference signal is embedded in a time-frequency region in which the target physical channel is located, and another part of the reference signal is placed outside the time-frequency location where the target physical channel is located. Time-frequency resource location;

Among the different types of reference signals, some types of reference signals are located in one time domain position adjacent to the time domain of the target physical channel, and another partial type of reference signal is located on the other side adjacent to the time domain of the target physical channel. Time domain location.

In some implementations, the sending module 123 is specifically configured to transmit the reference signal by one of the following methods:

When the number of ports is pre-agreed, the reference signal is transmitted through the port corresponding to the pre-agreed number of ports;

When a plurality of port numbers are pre-agreed, one of the plurality of port numbers is selected, and the reference signal is transmitted by the port corresponding to the selected one of the port numbers.

Further, there is provided another transmission device for a reference signal, comprising: a processor and a memory, the transmission device being applied to a base station, the memory storing computer executable instructions, the computer executable instructions being executed by the processor The following methods are implemented:

Pre-agreed reference signal anchor position;

Determining a time-frequency resource location of the reference signal according to the pre-agreed reference signal anchor position, the number of frequency domain resource element offsets of the reference signal relative to the anchor position, and the number of time domain symbol offsets of the reference signal relative to the anchor position;

For the implementation details of the foregoing transmission device of the reference signal applied to the base station, refer to the above method applied to the base station, and details are not described herein.

As shown in FIG. 13 , the embodiment of the present application further provides a reference signal transmission apparatus, and an application thereof. At the terminal, including:

The second configuration module 131 is configured to pre-appoint a reference signal anchor position;

a second determining module 132, configured to determine a frequency domain resource element offset number of the reference signal relative to the anchor point position, and determine a number of time domain symbol offsets of the reference signal relative to the anchor point position; and, according to the pre-agreed reference signal Determining the location of the anchor signal, the number of frequency domain resource elements offset of the reference signal relative to the anchor point position, and the number of time domain symbol offsets of the reference signal relative to the anchor point position, and determining the time-frequency resource location of the reference signal;

The receiving module 133 is configured to receive the reference signal according to the time-frequency resource location of the reference signal.

In some implementations, the second configuration module 131 can be further configured to perform one of the following:

In some implementations, the second determining module 132 is specifically configured to determine a time-frequency resource location of the reference signal by using a temporary identifier of the cell wireless network.

Specifically, the second determining module 132 is specifically configured to determine the time domain symbol position 1 by:

The time domain symbol position l of the reference signal in the time slot range or the target physical channel time domain symbol range is: l=(μ+μ _shift ) mod F;

Where μ is the time domain symbol position of the anchor position of the reference signal within the time slot range or the target physical channel time domain symbol range, μ _shift represents the number of time domain symbol offsets of the reference signal, and P is an integer not less than 1 And is a divisor of the number of time domain symbols of the time slot or the target physical channel;

And P determines:

In some implementations, the second determining module 132 is specifically configured to determine a frequency domain resource element offset of the reference signal relative to the anchor position by using one or a combination of the following two, and determine the reference signal relative to the anchor point. Number of time domain symbol offsets for the location:

In some implementations, the receiving module 133 can be configured to receive a reference signal, including one of the following:

When receiving the different types of reference signals by using the same port, some of the reference signals of the different types of reference signals are embedded in the time-frequency region where the target physical channel is located, and another part of the reference signal is placed on the target physical channel. The location of the time-frequency resource outside the time-frequency location;

When different types of reference signals are received by different ports, some of the reference signals of the different types of reference signals are located in a time domain position adjacent to the time domain of the target physical channel, and another part of the reference signal is located in the time domain of the target physical channel. The adjacent other time domain location;

When different types of reference signals are received by different ports, some of the reference signals of the different types of reference signals are embedded in the time-frequency region where the target physical channel is located, and another part of the reference signal is placed on the target physical channel. The location of the time-frequency resource outside the time-frequency location.

In some implementations, the receiving module 133 is specifically configured to receive the reference signal by one of the following methods:

When a port number is pre-agreed, the reference signal is received according to the pre-agreed number of ports;

When a plurality of port numbers are pre-agreed, channel estimation is performed on the reference signals according to the plurality of port numbers, and the signal carried by the target physical channel is detected by using the channel estimation result, and can be detected under a port number. When the signal is carried by the target physical channel, the reference signal is received by the port corresponding to the number of the ports.

Further, there is provided another transmission device for a reference signal, comprising: a processor and a memory, the transmission device being applied to a terminal, the memory storing computer executable instructions, the computer executable instructions being executed by the processor The following methods are implemented:

Pre-agreed reference signal anchor position;

For the implementation details of the above-mentioned transmission device of the reference signal applied to the terminal, refer to the above method applied to the terminal, and details are not described herein.

In addition, the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the foregoing method for transmitting a reference signal applied to a base station.

In addition, the embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are stored, and when the computer executable instructions are executed, the foregoing method for transmitting a reference signal applied to a terminal is implemented.

In this embodiment, the foregoing storage medium may include, but is not limited to, a U disk, a read only memory. (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), removable hard disk, disk or optical disk, and other media that can store program code.

In this embodiment, the processor executes the method steps of the above embodiments in accordance with program code already stored in the storage medium.

For specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. All or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. This application is not limited to any specific combination of hardware and software.

The basic principles and main features of the present application and the advantages of the present application are shown and described above. The present application is not limited by the above-described embodiments, and the above-described embodiments and the description are only for explaining the principles of the present application, and various changes and modifications may be made to the present application without departing from the spirit and scope of the application. And improvements are within the scope of the claimed invention.

Industrial applicability

With the embodiment of the present application, by using the time domain position offset of the reference signal, mutual interference of reference signals between adjacent cells can be reduced to a greater extent, and the reference signal is optimized, thereby improving the reference signal and the signal of the corresponding target physical channel. The quality of reception has improved the quality of signal reception.

Claims

A method for transmitting a reference signal, comprising:

Pre-agreed the anchor position of the reference signal;

Determining a number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determining a number of time domain symbol offsets of the reference signal relative to the anchor point location;

And a time domain symbol offset of the reference signal relative to the anchor point position according to the pre-agreed anchor point position of the reference signal, the number of frequency domain resource element offsets of the reference signal relative to the anchor point position a number, determining a time-frequency resource location of the reference signal;

A reference signal is transmitted according to a time-frequency resource location of the reference signal.
The transmission method according to claim 1, wherein the reference signal is one of or a combination of any one of:

Cell reference signal CRS;

Downlink demodulation reference signal DMRS;

Primary synchronization signal PSS;

Secondary sync signal SSS.
The transmission method according to claim 1, wherein

Transmitting the reference signal includes: transmitting the reference signal by using one or more ports;

The pre-agreed reference signal anchor position includes: when a plurality of ports are used to transmit the reference signal, the reference signals corresponding to the different ports are set to the same anchor position or the reference signals corresponding to the different ports are set to different anchor positions.
The transmission method according to claim 1 or 3, wherein before the transmitting the reference signal, the method further comprises:

The reference signals corresponding to different ports are set to one of the following multiplexing modes:

Space division multiplexing;

Code division multiplexing;

Time division multiplexing

Frequency division multiplexing

Time division and frequency division multiplexing.
The transmission method according to claim 1, wherein the target physical channel used for demodulation of the reference signal is one or more of the following:

Physical downlink control channel PDCCH;

Physical downlink shared channel PDSCH;

Physical broadcast channel PBCH.
The transmission method according to any one of claims 1 to 3, wherein before the transmitting the reference signal, one of the following is further included:

The reference signals corresponding to different ports are configured to be the same type;

The reference signals corresponding to different ports are configured as different types;

The reference signals corresponding to the same port are configured to be of the same type at different time-frequency resource locations;

The reference signals corresponding to the same port are configured to different types at different time-frequency resource locations.
The transmission method according to claim 1, wherein the determining a time-frequency resource location of the reference signal comprises:

Temporary identification based on cell wireless network
Determining the frequency domain resource element offset number v shift and the frequency domain location resource location k of the reference signal within a channel bandwidth or a target physical channel bandwidth;

The frequency domain resource element offset number is 0 or an integer not less than 1.
The transmission method according to claim 1, wherein the determining a time-frequency resource location of the reference signal comprises:

Temporary identification based on cell wireless network
Determining the number of shifts in the time domain symbol, μ shift , and the time domain symbol position 1 of the reference signal within the time slot range or within the target physical channel time domain symbol range.
The transmission method according to claim 8, wherein:

The time domain symbol position 1 of the reference signal within the time slot range or within the target physical channel time domain symbol range is determined by the following equation:

l=(μ+μ shHt )mod P;

Where μ is the time domain symbol position of the reference signal anchor position within the time slot range or the target physical channel time domain symbol range, μ shift represents the number of time domain symbol offsets of the reference signal, and P is an integer not less than 1 and a divisor of the number of time domain symbols for a time slot or target physical channel;

Wherein said reference signal is time-domain symbol μ shift offset number by a cell radio network temporary identity
And P determines:
Alternatively, the time-domain symbol offset number μ shift is a predetermined fixed value, and the fixed value is 0 or an integer not less than 1.
The transmission method according to claim 1, wherein the determining the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and determining the number of time domain symbol offsets of the reference signal relative to the anchor point position, including one of the following Or a combination of the latter two:

When the reference signals are of different types, different types of reference signals use the same frequency domain resource element offset number and time domain symbol offset number;

Different types of the reference signals use different frequency domain resource element offset numbers;

Different types of the reference signals use different numbers of time domain symbol offsets.
The transmission method according to claim 6, wherein said transmitting reference signal comprises one of the following:

In the different types of reference signals, a part of the type of the reference signal is embedded in a time-frequency region in which the target physical channel is located, and another part of the reference signal is placed outside the time-frequency location where the target physical channel is located. Time-frequency resource location;

Among the different types of reference signals, some types of reference signals are located in one time domain position adjacent to the time domain of the target physical channel, and another partial type of reference signal is located on the other side adjacent to the time domain of the target physical channel. Time domain location.
The transmission method according to claim 1, wherein said transmitting reference signal comprises one of the following:

When the number of ports is pre-agreed, the reference signal is transmitted through the port corresponding to the pre-agreed number of ports;

When a plurality of port numbers are pre-agreed, one of the plurality of port numbers is selected, and the reference signal is transmitted by the port corresponding to the selected one of the port numbers.
The transmission method according to claim 12, wherein

Determining, by the number of frequency domain resource element offsets of the reference signal relative to the anchor point location, comprising: using a different number of frequency domain resource element offsets for the plurality of port numbers; and/or,

The determining the number of time domain symbol offsets of the reference signal relative to the anchor point location comprises: employing different numbers of time domain symbol number offsets for the plurality of port numbers.
A transmission device for reference signals, comprising:

a first configuration module configured to pre-appoint an anchor position of the reference signal;

a first determining module, configured to determine a number of frequency domain resource element offsets of the reference signal relative to the anchor point location, and determine a number of time domain symbol offsets of the reference signal relative to the anchor point location; and, according to The pre-agreed anchor point position of the reference signal, the number of frequency domain resource element offsets of the reference signal relative to the anchor point position, and the number of time domain symbol offsets of the reference signal relative to the anchor point position Determining a time-frequency resource location of the reference signal;

The sending module is configured to transmit the reference signal according to the time-frequency resource location of the reference signal.
The transmission device according to claim 14, wherein

The sending module is further configured to transmit a reference signal by using one or more ports;

The first configuration module is further configured to set a different anchor point position corresponding to a reference signal of a different port or a reference signal corresponding to a different port when a reference signal is transmitted by using multiple ports.
The transmission device according to claim 14, wherein

The first configuration module is further configured to perform one of the following:

The reference signals corresponding to different ports are configured to be the same type;

The reference signals corresponding to different ports are configured as different types;

The reference signals corresponding to the same port are configured to be of the same type at different time-frequency resource locations;

The reference signals corresponding to the same port are configured to different types at different time-frequency resource locations.
The transmission device according to claim 16, wherein the first determining module is further configured to determine a frequency domain resource element offset number of the reference signal relative to the anchor point position, and a reference signal by using one or a combination of the following two: Number of time domain symbol offsets relative to anchor position:

When the reference signals are of different types, different types of reference signals use the same frequency domain resource element offset number and time domain symbol offset number;

Different types of the reference signals use different frequency domain resource element offset numbers;

Different types of the reference signals use different numbers of time domain symbol offsets.
The transmission device of claim 16, wherein the transmitting module is further configured to transmit a reference signal, including one of the following:

In the different types of reference signals, a part of the type of the reference signal is embedded in a time-frequency region in which the target physical channel is located, and another part of the reference signal is placed outside the time-frequency location where the target physical channel is located. Time-frequency resource location;

Among the different types of reference signals, some types of reference signals are located in one time domain position adjacent to the time domain of the target physical channel, and another partial type of reference signal is located on the other side adjacent to the time domain of the target physical channel. Time domain location.
A transmission device for a reference signal, comprising: a processor and a memory, the memory storing computer executable instructions, the computer executable instructions being executed by the processor to implement any one of claims 1-13 The transmission method of the reference signal.
A storage medium storing computer executable instructions configured to perform the method of transmitting a reference signal according to any one of claims 1-13.