WO2020220365A1

WO2020220365A1 - Communication method and communication apparatus

Info

Publication number: WO2020220365A1
Application number: PCT/CN2019/085392
Authority: WO
Inventors: 毕文平; 余政; 杨育波; 程型清
Original assignee: 华为技术有限公司
Priority date: 2019-05-01
Filing date: 2019-05-01
Publication date: 2020-11-05
Also published as: CN113412648A; CN113412648B

Abstract

The present application provides a communication method and apparatus, being able to reduce signaling overheads of a first signal. The communication method comprises: a first device determining first indication information, the first indication information being used to indicate frequency domain position information concerning a first signal of a second device, so that the frequency domain position of the first signal can be determined according to the frequency domain position where a second signal is located and the first indication information, the first signal being a resynchronization signal of a neighboring cell of the second device, the second signal being a resynchronization signal of a serving cell of the second device; and the first device sending, to the second device, the first indication information. The method and device provided in the embodiments of the present application can be applied to a communication system, for example, V2X, LTE-V, V2V, Internet of Vehicles, MTC, IoT, LTE-M, M2M, Internet of Things, etc.

Description

Communication method and communication device

Technical field

This application relates to the communication field, and more specifically, to a communication method and communication device in the communication field.

Background technique

At present, the long term evolution-advanced (LTE-A) system will continue to provide wireless communication services for its user equipment (UE) in the short term (or even the long term). In particular, the enhanced machine type communication (eMTC) system and its other evolutionary systems (further eMTC, FeMTC; even further eMTC, eFeMTC; additional MTC, AMTC) are systems derived from LTE. Work in LTE systems and frequency bands.

During downlink (DL) transmission, the eMTC system and its evolution system use the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) in the LTE system for synchronization. Since the primary synchronization signal and the secondary synchronization signal are relatively sparse in the time domain, the process of using the above two signals to synchronize takes a long time. Therefore, a resynchronization signal (RSS) is introduced, which is a periodic signal. A periodic RSS is added to the synchronization signal, so the synchronization time can be reduced and user power consumption can be saved.

In order to further enhance the mobility of the UE, the synchronization information of the neighboring cell can be obtained by measuring the RSS of the neighboring cell. The current RSS configuration requires a large amount of signaling overhead, and the UE usually has more neighboring cells. The UE needs to receive the RSS configuration of each neighboring cell. Therefore, the UE receives a heavy signaling burden, which wastes the UE’s power. Consumption. The network side needs to send the RSS configuration of these neighboring cells, so the signaling overhead of the network is relatively large, which wastes system resources and power consumption.

In summary, how to reduce the signaling overhead of the RSS configuration of neighboring cells is an urgent problem to be solved.

Summary of the invention

The present application provides a communication method and device, which can reduce the signaling overhead of the first signal.

In the first aspect, a communication method is provided, including:

The first device determines first indication information, which is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be based on the frequency domain where the second signal is located. The location and the first indication information are determined, the first signal is a resynchronization signal of a neighboring cell of the second device, and the second signal is a resynchronization signal of a serving cell of the second device;

The first device sends the first indication information to the second device.

Therefore, in the embodiment of the present application, the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal. The frequency domain position offset of the signal is not indicative of the absolute position of the first signal in the system bandwidth, so that the size of the frequency domain position indication information can be saved, thereby saving system signaling overhead.

With reference to the first aspect, in some implementations of the first aspect, the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

The first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or

The second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same or are predefined Yes, the second set of bit states includes one or more bit states.

K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.

K bits of the N bits of the first indication information indicate the narrowband number or index where the first signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband (the lowest RB number in the narrowband, or the RB group number in the narrowband).

With reference to the first aspect, in some implementations of the first aspect, the frequency domain position of the first signal can be based on the first indication information and the first parameter and/or the frequency domain position of the second signal Determined, wherein the first parameter is the interval granularity of the frequency domain position of the first signal;

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is k1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is k2;

Wherein, the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1<k2.

Optionally, the first indication information may include M bits, where 1 bit of the M bits is used to indicate whether the narrowbands of the first signal and the second signal are the same.

When 1 bit indicates that the first signal and the second signal are in the same narrowband, the M-1 bit is used to indicate the position of the first signal in the narrowband. The position in the narrowband can be the RB number or the lowest RB number of the first signal in the narrowband, or it can indicate the offset between the position in the narrowband of the first signal and the position in the narrowband of the second signal. It can be an RB number offset or the lowest RB number offset.

When 1 bit indicates that the narrowband where the first signal and the second signal are located are not the same, the M-1 bit indicates the narrowband position where the first signal is located (that is, the position of the first narrowband or the narrowband number or the narrowband index) Or M-1 bit indicates the offset between the narrowband position where the first signal is located and the narrowband position where the second signal is located, and the position offset may refer to the offset of the narrowband number or index.

Optionally, x bits of the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, or the first indication Among the M bits of information, x bits indicate the number of the first narrowband where the first signal is located; the remaining Nx bits in the M bits indicate the frequency of the first signal in the first narrowband. The offset of the frequency domain position and the frequency domain position of the second signal in the second narrow band or the frequency domain position of the first signal in the first narrow band.

Optionally, the RB number where the frequency domain position of the lowest PRB of the first signal is located is Q, where Q is k*N+P, where N is an integer greater than or equal to zero, and k is 2, 4, 6, or 8. , P is an integer greater than or equal to zero and less than k.

In the second aspect, a communication method is provided, including:

The second device receives the first indication information sent by the first device, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, and the first signal is the frequency domain position information of the second device. Resynchronization signal of neighboring cells;

The second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the resynchronization of the serving cell of the second device signal;

The second device measures the first signal according to the frequency domain position where the first signal is located.

With reference to the second aspect, in some implementations of the second aspect, the first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

The second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the The second set of bit states includes one or more bit states.

With reference to the second aspect, in some implementation manners of the second aspect, the second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, including :

The second device determines the frequency domain position of the first signal according to the first indication information, the frequency domain position of the second signal, and a first parameter, where the first parameter is the first parameter. Interval granularity of signal frequency domain position;

In the third aspect, a communication method is provided, including:

The first device determines second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset and the first signal. A time unit and duration are determined, where, when the duration of the first signal is 160 ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or the first signal A time unit is M times the measurement interval period of the second device, where M is a positive integer;

The first device sends the second indication information to the second device.

Therefore, by setting the first time unit to N times of a data frame in the embodiment of the present application, the granularity of the time offset of the first signal in the embodiment of the present application is greater than that in the prior art, and thus can The value range of the time offset is reduced, based on this, the signaling overhead for indicating the time offset can be saved, thereby reducing the system signaling overhead.

Therefore, in this embodiment of the application, the first time unit is set to an integer multiple of the measurement interval period of the second device, so that when the first device sends the first signal, the second device is always in the state of detecting the first signal. Therefore, in the embodiment of the present application, the second device can measure the first signal, thereby avoiding the waste of signaling and improving system throughput.

With reference to the third aspect, in some implementations of the third aspect, the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, where The second parameter is determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.

Therefore, in the embodiment of the present application, by using the second parameter to correct the time offset value or the actual time offset value, the time difference introduced by asynchronous can be eliminated, so that the second device can detect the first signal, thereby avoiding The waste of signaling improves system throughput.

With reference to the third aspect, in some implementations of the third aspect, when the first signal has a duration of 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where timeoffset takes a value The range is 0~1, K is 8, or the value range of timeoffset is 0~3, K is 4, or the value range of timeoffset is 0~7, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 320ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 8, or the value range of timeoffset is 0～7, K is 4, or the range of timeoffset is 0～15, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 640 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 16, or the value range of timeoffset is 0～7, K is 8, or the range of timeoffset is 0～15, K is 4, where K*frames is the first time unit;

When the duration of the first signal is 1280 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 32, or the value range of timeoffset is 0～7, K is 16, or the range of timeoffset is 0～15, K is 8, where K*frames is the first time unit;

Wherein, the timeoffset represents the time offset, and the frames represents the length of the data frame.

In a fourth aspect, a communication method is provided, including:

The second device receives second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;

The second device determines the actual time offset value of the first signal according to the time offset, the first time unit and the duration value, wherein, when the duration of the first signal is 160 ms, the first signal A time unit is N times of a data frame, where N is a positive integer greater than 1;

The second device measures the first signal according to the actual time offset value of the first signal.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the second device determines the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value ,include:

The second device determines the actual time offset value of the first signal according to the time offset, the first time unit, the duration value, and a second parameter, where the second parameter is Determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.

With reference to the fourth aspect, in some implementations of the fourth aspect, when the first signal has a duration of 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where timeoffset takes a value The range is 0~1, K is 8, or the value range of timeoffset is 0~3, K is 4, or the value range of timeoffset is 0~7, K is 2, where K*frames is the first time unit;

In a fifth aspect, a communication device is provided, and the device includes a unit for executing each step in the method in any possible implementation manner of the first to fourth aspects or the first to fourth aspects.

In a sixth aspect, a communication device is provided, which includes a transceiver, a memory, and a processor. Wherein, the transceiver, the memory, and the processor communicate with each other through an internal connection path, the memory is used to store instructions, and the processor is used to execute the instructions stored in the memory to control the receiver to receive signals and control the transmitter to send signals And when the processor executes the instruction stored in the memory, the execution causes the processor to execute the method in any one of the first aspect to the fourth aspect or any one of the first aspect to the fourth aspect.

In a seventh aspect, a communication system is provided, which includes the device provided in the fifth aspect and the device provided in the sixth aspect.

In an eighth aspect, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, it is used to execute any of the first to fourth aspects or the first to fourth aspects. The method in the implementation.

In a ninth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program. When the computer program is executed, it is used to execute the first to fourth aspects or the first to fourth aspects. The method in any possible implementation of the aspect.

Description of the drawings

Figure 1 is a schematic diagram of a communication system suitable for the present application.

Fig. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application.

Fig. 3 is a schematic diagram of possible frequency domain positions of the first signal in the narrow band.

Fig. 4 shows a schematic flowchart of a communication method provided by an embodiment of the present application.

Fig. 5 shows a schematic diagram of RSS measurement in the prior art.

Fig. 6 shows a schematic block diagram of a communication device provided by an embodiment of the present application.

Fig. 7 shows a schematic block diagram of another communication device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, the future 5th Generation (5th Generation, 5G) system or New Radio (NR), etc. As an example, the communication system is, for example, V2X, LTE-V, V2V, Internet of Vehicles, MTC, IoT, LTE-M, M2M, Internet of Things, etc.

First, the application scenario of this application is introduced. Fig. 1 is a schematic diagram of a communication system suitable for this application.

The communication system includes a network device 110, a terminal device 120, a terminal device 130, a terminal device 140, a terminal device 150, a terminal device 160, and a terminal device 170. These terminal devices communicate with the network device 110 through a wireless link. As an example, it is possible to communicate with the network device 110 through electromagnetic waves.

In FIG. 1, the network device 110 may send signaling and/or data to one or more of the above-mentioned 6 terminal devices. The terminal device 150, the terminal device 160, and the terminal device 170 can also form a communication system in which the terminal device 160 can send signaling and/or data to one or two of the terminal device 150 and the terminal device 170 That is to say, the embodiments of the present application can be applied not only to the communication between the terminal device and the network device, but also to the communication between the terminal device and the terminal device.

It should be noted that the multiple terminal devices shown in the embodiments of the present application are for a better and more comprehensive description of the embodiments of the present application, but should not cause any limitation to the embodiments of the present application. In actual applications, there may be only one or More than one terminal device.

In this application, the aforementioned multiple terminal devices may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication equipment, User agent or user device. The terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (PLMN) Terminal equipment, etc., this embodiment of the present application does not limit this.

The network device 110 may be a base station defined by 3GPP, for example, a base station (gNB) in a 5G communication system. The network device 110 may also be a non-3GPP (non-3GPP) access network device, such as an access gateway (AGW). The network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of devices.

The communication system 100 is only an example, and the communication system applicable to the present application is not limited to this. For example, the number of network devices and terminal devices included in the communication system 100 may also be other numbers.

In the prior art, in the serving cell of the terminal device (that is, this cell), the configuration of each RSS needs to be notified using 18-bit (bit) signaling. The following shows an example of RSS configuration information in this cell.

Among them, the frequency location (freqLocation) is used to indicate the frequency domain location of the lower RB among the two consecutive RBs occupied by the RSS or the RB number where the lowest RB is located. As an example, the system bandwidth is 20M, and the 20M system bandwidth includes 100 RBs. Therefore, there are 99 possible situations in the system bandwidth for the positions of 2 consecutive RBs occupied by RSS, that is, the position of the 2 consecutive RBs There are 99 possible situations in the system bandwidth for the position of the lower RB, so the bit status corresponding to 7bit is required (there are 128 bit statuses corresponding to 7bit in total, 99 of which can be used) to indicate the status of the lower RB in the system bandwidth. The location in the frequency domain causes a large signaling overhead for the RSS configuration.

When the terminal device needs to measure the RSS of the neighboring cell, the network device needs to indicate the frequency domain position of the RSS of the neighboring cell to the terminal device. Generally, terminal equipment has many neighboring cells, and the terminal equipment needs to receive the RSS configuration of each neighboring cell, which will cause a heavy burden on the terminal equipment to receive signaling. In addition, the network side needs to send the RSS configuration of these neighboring cells, which results in large network signaling overhead and wastes system resources and power consumption.

In view of this, the embodiment of the present application provides a communication method, which can reduce the signaling overhead of configuring RSS.

Fig. 2 shows a schematic flowchart of a communication method provided by an embodiment of the present application. The communication method in FIG. 2 can be applied to the communication system in FIG. 1. As an example, the network device may be an example of the first device, and the terminal device may be an example of the second device. The terminal device may be any one of the terminal devices described in FIG. 1, but the implementation of this application The example is not limited to this, for example, the first device may also be a terminal device.

Wherein, the first device may be a device with sending capability, and the second device may be a device with receiving capability.

210. The network device determines first indication information, where the first indication information is used to indicate the frequency domain position information of the first signal of the terminal device, so that the frequency domain position of the first signal can be based on the frequency domain where the second signal is located. The location and the first indication information are determined.

As an example, the first signal is a resynchronization signal RSS of a neighboring cell of the terminal device, and the second signal is a resynchronization signal RSS of a serving cell of the terminal device.

Specifically, the first indication information may indicate the offset of the frequency domain position of the first signal relative to the frequency domain position of the second signal. In this way, the frequency domain position of the first signal can be determined according to the frequency domain position of the second signal and the offset.

In some possible implementation manners, the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one Or multiple bit states. That is, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the frequency domain position of the first signal in the narrowband where the second signal is located. Wherein, the narrowband of the first signal and the second signal are the same.

As an example, the first indication information may include 2 bits, and the first bit state set corresponding to the 2 bits includes 3 bit states, which are 00, 01, and 10 respectively. As an example, the first indication information may include 3 bits, and the first bit state set corresponding to the 3 bits includes 8 bit states, which are respectively 000, 001, 010, 011, 100, 101, 110, and 111.

It should be noted that the system bandwidth can be divided into several narrowbands, and each narrowband occupies several RBs. As an example, when the system bandwidth is 20M, the system bandwidth can be divided into 16 narrowbands, and each narrowband includes 6 RBs.

It should be noted that, in the present invention, any formula deformation or table or other predefined rules that obtain the same result as the example fall within the protection scope of the embodiments of the present application.

Optionally, every two consecutive RB groups form an RB group with an index (index) i. In some optional embodiments, any two RB groups do not include the same RB. In a specific implementation manner, the RB groups can be numbered according to certain rules. As an example, the rule may be configured for the network device, for example, according to the order of RB numbers from small to large or from large to small.

Fig. 3 shows a schematic diagram of possible frequency domain positions of the first signal in a narrow band. Among them, there are 6 RBs in a narrow band, and the first signal occupies 2 consecutive RBs. Therefore, there may be 3 non-overlapping allocation modes for the first signal in a narrow band. For example, in mode 1, the first signal occupies the first 2 RBs in a narrowband, in mode 2, the first signal occupies the middle 2 RBs in a narrowband, and in mode 4, the first signal occupies the last 2 RBs in a narrowband. RB.

Optionally, the first two RB groups in a narrowband can be numbered as 0, the middle two RB groups are numbered as 1, and the last two RB groups are numbered as 3.

It should be noted that FIG. 3 is only used as an example, showing possible frequency-domain positions of the first signal in the narrowband, but the embodiment of the present application is not limited thereto. For example, the first signal can also have 5 overlapping allocation modes in the first narrowband. For example, mode 1 occupies the first RB and the second RB in a narrowband, and mode 2 occupies the second RB in a narrowband. And the third RB, and so on.

For the case where the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, in a specific implementation manner, the first indication information indicates The first signal and the second signal have the same narrowband, and the frequency domain indicator value in the narrowband of the first signal is q1, which is the offset of the frequency domain position of the first signal in the narrowband relative to the frequency domain position of the second signal in the narrowband The quantity is q1. When the frequency domain position (for example, number) of the second signal in the narrow band is r1, then the position of the first signal in the narrow band is: (r1+q1) mod L, where L is a possible frequency domain position in the narrow band For example, L=3 means that there are 2 consecutive RBs with 3 different positions in a narrow band.

In some possible implementations, the first indication information indicates that the narrowbands of the first signal and the second signal are the same, and the frequency domain position within the narrowband of the first signal is q1, where q1 is the RB number or index where the lowest RSS of the first signal is located. , Or q1 is the number or index of the RB group.

Or in some possible implementations, the position of the first signal in the narrowband is r1+q1, which is not limited in the embodiment of the present application.

Table 1 shows an example of the first bit state set corresponding to the bit of the first indication information.

Table 1

As shown in Table 1, the first indication information has 2 bits. The bit status 00 in the first bit status set is used to indicate that the position of the first signal in the narrowband is r1mod 3*M, or it is used to indicate q1=0 ; Bit state 01 is used to indicate that the position of the first signal in the narrowband is (r1+1*M) mod 3*M, or is used to indicate q1=1*M, and so on. When M=1, it means that the RBs in the narrowband are divided into two groups. At this time, the position of the first signal in the narrowband is indicated by the RB group number; when M=2, it is used to indicate that the RSS is in the narrowband. The number or index of the RB where the lowest RB is located. r1 may be the number of the RB group of the second signal in the narrowband or the number or index of the lowest RB in the narrowband; or r1 is predefined or configured by the first device, such as r1=0. It should be noted that any formula deformation or table or other predefined rules that obtain the same result as the example fall within the protection scope of the embodiments of this application.

Optionally, when the bit status 00, 01, 11 in Table 1 are used to indicate that the narrowband number of the first signal is X1, the bit status 11 in Table 1 can be used to indicate that the narrowband number of the first narrowband is (X1+ 1) mod N is either an adjacent narrowband or a predefined narrowband, and the frequency domain position of the first signal in the narrowband is r1, where r1 can be the number of the RB group of the second signal in the narrowband or in the narrowband The number or index of the lowest RB; or r1 is predefined or configured by the first device, such as r1=0. .

Or, in some possible implementation manners, the second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, and the first signal and the second signal are in the narrowband The frequency domain positions of are the same, and the second set of bit states includes one or more bit states. That is to say, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the narrowband where the first signal is located (for example, the offset relative to the narrowband where the second signal is located). Wherein, the position in the narrow band where the first signal and the second signal are located is the same.

Or, in some possible implementation manners, the second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain position of the first signal in the narrowband is predetermined Defined or configured by a higher layer, the second set of bit states includes one or more bit states. That is to say, in the embodiment of the present application, the above-mentioned bit state may be used to indicate the narrowband where the first signal is located (for example, the offset relative to the narrowband where the second signal is located).

For the case where the second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, in a specific implementation manner, the first indication information indicates the frequency of the first signal and the second signal in the narrowband. The domain position is the same or the frequency domain position of the first signal in the narrowband is predefined or configured at a higher level, the first narrowband value of the first signal is p1 or the bit value used to indicate the first indication information is p1, that is, the first narrowband number is p1.

For the case where the second state set corresponding to the bit of the first indication information indicates the first narrowband where the first signal is located, in a specific implementation manner, the first indication information indicates the frequency of the first signal and the second signal in the narrowband. The position of the first narrowband of the first signal is the same, the value of the first narrowband of the first signal is p1 or the value of the bit used to indicate the first indication information is p1, that is, the frequency domain position of the first narrowband of the first signal is relative to the second signal of the second signal. The frequency domain position offset of the narrowband is p1. When the frequency domain position of the second narrowband (for example, the number is k1), the frequency domain position of the first narrowband is: (k1+p1) mod N, where N represents the number of narrowbands that can be used by the first narrowband or the system bandwidth The number of narrowbands included. As an example, when the first narrowband is a narrowband in the system bandwidth 20M, N is 16, and when the first narrowband is a narrowband in half the system bandwidth, N is 8.

Or in some possible implementations, the position or number of the first narrowband is k1+p1, which is not limited in the embodiment of the present application.

Table 2 shows an example of the second bit state set corresponding to the bit of the first indication information.

Table 2

比特状态Bit state	第一窄带的位置The position of the first narrowband
000000	k1mod N或k1k1mod N or k1
001001	(k1+1)mod N或(k1+1)(k1+1)mod N or (k1+1)
010010	(k1+2)mod N或(k1+2)(k1+2)mod N or (k1+2)
011011	(k1+3)mod N或(k1+3)(k1+3)mod N or (k1+3)
100100	(k1+4)mod N或(k1+4)(k1+4)mod N or (k1+4)
101101	(k1+5)mod N或(k1+5)(k1+5)mod N or (k1+5)
110110	(k1+6)mod N或(k1+6)(k1+6)mod N or (k1+6)
111111	(k1+7)mod N或(k1+7)(k1+7)mod N or (k1+7)

As shown in Table 2, the first indication information has 3 bits. The bit state 000 in the first bit state set is used to indicate that the position of the first narrowband is k1mod N, or used to indicate p1=0; the first bit state The bit state 001 in the set is used to indicate that the position of the first narrowband is (k1+1) mod N, or is used to indicate p1=1; and so on. Where k1 is the narrowband number or index where the second signal is located; or k1 is a predefined or first device configuration, for example, k1=0.

In some embodiments, when the narrowband of the first signal and the second signal are not the same, the position of the first signal in the narrowband may be predefined or configured by a network device. This is not limited.

In an example, the first indication information may include M bits, where 1 bit of the M bits is used to indicate whether the narrowbands of the first signal and the second signal are the same.

When 1 bit indicates that the first signal and the second signal are in the same narrowband, the M-1 bit is used to indicate the position of the first signal in the narrowband. The position in the narrowband may be the RB number or the lowest RB number in the narrowband of the first signal, and may also indicate the relative position of the second signal. For example, M-1 bits can be used to indicate that the frequency domain position within the narrow band of the first signal is q2, that is, the frequency domain position within the narrow band of the first signal is offset from the frequency domain position of the second signal in the narrow band. The displacement is q2. When the frequency domain position (for example, number) of the second signal in the narrow band is r2, the position of the first signal in the narrow band is (r2+q2) mod3; or M-1 bits can be used to indicate the position of the first signal The frequency domain position in the narrow band is taken as q2, that is, the frequency domain position in the narrow band of the first signal is q2 or the RB group number in the narrow band of the first signal is q2 or the lowest RB number in the narrow band of the first signal is q2 .

When 1 bit indicates that the narrowband of the first signal and the second signal are not the same, the M-1 bit is used to indicate the narrowband position of the first signal (that is, the position of the first narrowband or the narrowband number or the narrowband index). Specifically, M-1 bits can be used to indicate that the first narrowband position is p2, that is, the offset of the first narrowband position relative to the second narrowband is p2, the number of the second narrowband is k2, and the system bandwidth includes N narrowbands , The frequency domain position of the first narrowband is: (k2+p2) mod N; or M-1 bits can be used to indicate that the first narrowband position is p2, that is, the first narrowband position is p2 or the first narrowband number is p2 Or the index of the first narrowband is p2.

Exemplarily, M=3, that is, 3 bits of information, where 1 bit (such as high-order bits) is used to indicate whether the narrowband positions of the first signal and the second signal are the same. When the 1 bit is in the first state, the first signal and the second signal are in the same narrow band, and the remaining 2 bits of the 3 bits are used to indicate the position of the first signal in the narrow band. The position in the narrow band can be in the RB group. Or the position in the narrowband can be the number of the lowest RB in the narrowband, or the position in the narrowband is the offset of the first signal relative to the position of the second signal in the narrowband (for example, when the first signal is in the narrowband The inner position is (P+Q) mod N, where Q is the position of the second signal in the narrowband, P is the offset, and N is the number of RB groups included in the narrowband, for example, N=3). When the 1 bit is in the second state, the positions of the first signal and the second signal in the narrowband are the same, or the positions of the first signal and the narrowband are predefined or configured by higher layers, and the remaining 2 bits indicate the first signal The number of the narrowband where a signal is located or the index of the narrowband where the second signal is located or the offset of the narrowband where the first signal is located relative to the narrowband where the second signal is located (for example, the narrowband where the first signal is located at this time is (P+Q)modN, where Q The narrowband number of the second signal, P is the offset, and N is the number of narrowbands included in the system bandwidth). The first state can be 0 and the second state is 1; or the first state is 1 and the second state is 0.

Optionally, in this embodiment of the present application, x bits of the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located Or the x bits in the M bits of the first indication information indicate the number of the first narrowband where the first signal is located, and the remaining Nx bits in the M bits indicate that the first signal is in the An offset between the frequency domain position in the first narrow band and the frequency domain position of the second signal in the second narrow band or the frequency domain position of the first signal in the first narrow band.

As an example, when M=4 and x=2, 2 bits in the first indication information are used to indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, and the remaining 2 bits are To indicate the offset of the frequency domain position of the first signal in the first narrow band and the frequency domain position of the second signal in the second narrow band.

For example, 2 bits can be used to indicate that the first narrowband position is p3, that is, the offset of the first narrowband position relative to the second narrowband is p3, the number of the second narrowband is k3, and the system bandwidth includes N narrowbands. The frequency domain position of a narrowband is: (k3+p3) mod N; the remaining 2 bits can be used to indicate the frequency domain position within the narrowband of the first signal. The value is q3, that is, the frequency domain position within the narrowband of the first signal The offset relative to the frequency domain position of the second signal in the narrow band is q3. When the frequency domain position (for example, number) of the second signal in the narrow band is r3, the position of the first signal in the narrow band is (r3+q3) mod3.

Or the x bits in the M bits of the first indication information indicate the offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located, and the remainder of the M bits The Nx bits indicate the frequency domain position of the first signal in the first narrowband. Here, the N-x bit is used to indicate the absolute position of the first signal in the narrow band, that is, it is not an offset relative to the frequency domain position of the second signal in the second narrow band. For example, the N-x bits may indicate the number of the lowest RB of the first signal in the first narrowband.

Optionally, the frequency domain position of the first signal can be determined according to the first indication information and the first parameter and/or the frequency domain position of the second signal;

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is y1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is y2;

Wherein, the element in the first bandwidth set is smaller than the element in the second bandwidth set, y1<y2. Wherein, the first parameter may be understood as the interval granularity of the frequency domain position of the first signal.

As an example, the first narrowband number of the first signal, or the lowest RB number (index) of the first signal, or the RB group number of the first signal can be expressed as:

The frequency domain position of the first signal=(k+P*Y)mod N,

Where k represents the narrowband number where the second signal is located, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, and P is the first indicator indicated by the first indicator. For the value of the frequency domain position of the narrowband, Y represents the first parameter, and N represents the number of narrowbands or the number of RBs or the number of RB groups that can be used by the first narrowband, or the number of narrowbands included in the system bandwidth.

Or in some possible implementation manners, the frequency domain position of the first signal can be determined according to the first indication information and the first parameter. The first narrowband number of the first signal, or the lowest RB number (index) of the first signal, or the RB group number of the first signal is k+P*Y, where k represents the narrowband number where the second signal is located, or the first The lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, P is the value of the frequency domain position of the first narrowband indicated by the first indication information, and Y represents the first A parameter, which is not limited in the embodiment of this application.

Or in some possible implementation manners, the frequency domain position of the first signal can be determined according to the first indication information and the first parameter. The first narrowband number of the first signal, or the lowest RB number (index) of the first signal, or the RB group number of the first signal is P*Y, where P is the frequency domain of the first narrowband indicated by the first indication information The value of the position, Y represents the first parameter.

Table 3 shows an example of the third bit state set corresponding to the bit of the first indication information.

table 3

比特状态Bit state	第一信号所在的频域位置The frequency domain position of the first signal
0000	k4mod N或k4k4mod N or k4
0101	(k4+1Y1)mod N或(k4+1Y1)(k4+1Y1)mod N or (k4+1Y1)
1010	(k4+2Y1)mod N或(k4+2Y1)(k4+2Y1)mod N or (k4+2Y1)
1111	(k4+3Y1)mod N或(k4+3Y1)(k4+3Y1)mod N or (k4+3Y1)

Among them, the first parameter is Y1, and its possible values are 1, or 2, or 4, or 8, or 16, and k4 represents the narrowband number where the second signal is located, or the lowest RB number (index) of the second signal, Or the frequency position of the RB group number of the second signal, or 0, and N represents the number of narrowbands or the number of RBs or the number of RB groups that can be used by the first narrowband, or the number of narrowbands included in the system bandwidth.

Optionally, the first parameter Y1 is determined according to the channel bandwidth (that is, the system bandwidth). Table 4 shows an example of system bandwidth. Table 4 shows the possible values of Y1 for different channel bandwidths.

Table 4

Wherein, the first value≤the second value≤the third value≤the fourth value≤the fifth value≤the sixth value.

Optionally, the following Table 5 shows possible values of the first value to the sixth value.

table 5

Table 6 shows an example of the fourth bit state set corresponding to the bit of the first indication information.

Table 6

比特状态Bit state	第一信号所在的频域位置The frequency domain position of the first signal
000000	k5mod N或kk5mod N or k
001001	(k5+1Y2)mod N或(k5+1Y2)(k5+1Y2)mod N or (k5+1Y2)
010010	(k5+2Y2)mod N或(k5+2Y2)(k5+2Y2)mod N or (k5+2Y2)
011011	(k5+3Y2)mod N或(k5+3Y2)(k5+3Y2)mod N or (k5+3Y2)
100100	(k5+4Y2)mod N或(k5+4Y2)(k5+4Y2)mod N or (k5+4Y2)
101101	(k5+5Y2)mod N或(k5+5Y2)(k5+5Y2)mod N or (k5+5Y2)
110110	(k5+6Y2)mod N或(k5+6Y2)(k5+6Y2) mod N or (k5+6Y2)
111111	(k5+7Y2)mod N或(k5+7Y2)(k5+7Y2)mod N or (k5+7Y2)

Among them, the possible value of the first parameter Y2 is 1, or 2, or 4, or 8, or 16. Among them, k5 represents the narrowband number of the second signal, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, N represents the number of narrowbands that can be used by the first narrowband Either the number of RBs or the number of RB groups, or the number of narrowbands included in the system bandwidth.

Optionally, Y2 is determined based on the system bandwidth. Table 7 shows the possible values of Y2 for different channel bandwidths.

Table 7

Optionally, the following Table 8 shows possible values of the first value to the sixth value.

Table 8

Table 9 shows an example of the fourth bit state set corresponding to the bit of the first indication information.

Table 9

比特状态Bit state	第一信号所在频域的位置The position of the first signal in the frequency domain
00000000	k6mod N或k6mod N or
00010001	(k6+1Y3)mod N或(k6+1Y3)(k6+1Y3)mod N or (k6+1Y3)
00100010	(k6+2Y3)mod N或(k6+2Y3)(k6+2Y3)mod N or (k6+2Y3)
00110011	(k6+3Y3)mod N或(k6+3Y3)(k6+3Y3)mod N or (k6+3Y3)
01000100	(k6+4Y3)mod N或(k6+4Y3)(k6+4Y3)mod N or (k6+4Y3)
01010101	(k6+5Y3)mod N或(k6+5Y3)(k6+5Y3)mod N or (k6+5Y3)
01100110	(k6+6Y3)mod N或(k6+6Y3)(k6+6Y3)mod N or (k6+6Y3)
01110111	(k6+7Y3)mod N或(k6+7Y3)(k6+7Y3)mod N or (k6+7Y3)
10001000	(k6+8Y3)mod N或(k6+8Y3)(k6+8Y3)mod N or (k6+8Y3)
10011001	(k6+9Y3)mod N或(k6+9Y3)(k6+9Y3)mod N or (k6+9Y3)
10101010	(k6+10Y3)mod N或(k6+10Y3)(k6+10Y3)mod N or (k6+10Y3)
10111011	(k6+11Y3)mod N或(k6+11Y3)(k6+11Y3)mod N or (k6+11Y3)
11001100	(k6+12Y3)mod N或(k6+12Y3)(k6+12Y3)mod N or (k6+12Y3)
11011101	(k6+13Y3)mod N或(k6+13Y3)(k6+13Y3)mod N or (k6+13Y3)
11101110	(k6+14Y3)mod N或(k6+14Y3)(k6+14Y3)mod N or (k6+14Y3)
11111111	(k6+15Y3)mod N或(k6+15Y3)(k6+15Y3)mod N or (k6+15Y3)

Among them, the possible value of the first parameter Y3 is 1, or 2, or 4, or 6. Among them, k6 represents the narrowband number of the second signal, or the lowest RB number (index) of the second signal, or the frequency position of the RB group number of the second signal, or 0, N represents the number of narrowbands that can be used by the first narrowband Either the number of RBs or the number of RB groups, or the number of narrowbands included in the system bandwidth.

Optionally, Y3 is determined according to the channel bandwidth. Table 10 shows the possible values of Y2 for different channel bandwidths.

Table 10

Optionally, the following Table 11 shows possible values of the first value to the sixth value.

Table 11

From Table 3 to Table 11 above, the larger the element in the channel bandwidth set, the larger the value of the corresponding first parameter Y.

In an achievable way, the lowest RB number of the first signal is k*N+q, where N is a positive integer greater than or equal to 0, k is 2, or 4, or 8, or 16, or 32, q Is an integer greater than or equal to 0 and less than k. For example, the lowest RB number of the first signal is even or odd, that is, 0,2,4...98 or 1,3,5...97. At this time, 6 bits are required to indicate the frequency domain position of the first signal, saving signaling overhead . For example, the lowest RB number of the first signal is 0, 4, 8,..., 96. At this time, only 5 bits are needed to indicate the frequency domain position of the first signal, which saves signaling overhead.

220. The network device sends the first indication information to the terminal device.

Correspondingly, the terminal device receives the first indication information from the network device.

230. The terminal device determines the frequency domain position of the first signal according to the first indication information.

Specifically, the terminal device may determine the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal.

240. The terminal device measures the first signal according to the frequency domain position of the first signal.

Specifically, for the measurement of the first signal by the terminal device, reference may be made to the description in the prior art. For brevity, details are not described herein again.

It should be noted that in this embodiment of the application, the frequency domain position of the first signal may be the frequency domain position of the lowest RB of the first signal, or the frequency domain position of the highest RB of the first signal. The example does not limit this.

Therefore, the embodiment of the present application enables the frequency domain position of the first signal to be determined according to the frequency domain position of the second signal and the first indication information, that is, the first indication information is used to indicate that the frequency domain position of the first signal is relative to the second signal. The offset of the frequency domain position of the signal instead of indicating the absolute position of the first signal in the system bandwidth, which can save the size of the frequency domain position indication information, thereby saving system signaling overhead, and on the one hand, it can reduce terminal equipment reception The burden of signaling saves the power consumption of terminal equipment. On the other hand, it can save communication system resources and power consumption.

In addition, in the configuration information of the RSS described above, the time offset (timeOffset) is used to indicate the offset of the time domain of the RSS. For the time periods of 320ms, 640ms and 1280ms (periodicity), when a data frame (as an example, 10ms) is used as the granularity of the time offset, the value range of the time offset of the RSS (timeOffset) is 0 To 31, the bit state corresponding to 5bit is needed (there are 32 bit states corresponding to 5bit in total) to indicate the value of the time offset. This leads to a large RSS signaling overhead.

Fig. 4 shows a schematic flowchart of a communication method provided by an embodiment of the present application. The communication method in FIG. 4 can be applied to the communication system in FIG. 1. As an example, the network device may be an example of the first device, and the terminal device may be an example of the second device. The terminal device may be any one of the terminal devices described in FIG. 1, but the implementation of this application The example is not limited to this, for example, the first device may also be a terminal device. Wherein, the first device may be a device with sending capability, and the second device may be a device with receiving capability.

The communication method is such that the method includes 410 and 420.

410. The network device determines second indication information, where the second indication information is used to indicate the time offset of the first signal of the terminal device (timeoffset), where the actual value of time offset of the first signal offset) is determined according to the time offset, the first time unit, and the duration. Here, the duration can be understood as the period of the first signal.

Optionally, in this embodiment of the present application, the time offset of the first signal may be the time offset of the first signal relative to the measurement interval, that is, the time offset may be the time offset of the measurement interval and the time of the first signal. The difference in offset.

As an example, the actual time offset value of the first signal is an integer multiple of the product of the aforementioned time offset and the first time unit. That is to say, the actual time offset value of the first signal in the embodiment of the present application is indicated with the first time unit as the minimum offset granularity.

Wherein, the value range of the time offset is related to the duration of the first signal. As an example, the duration of the first signal may be the period during which the network device sends the first signal, such as 160 ms, 320 ms, 640 ms, or 1280 ms or others, which is not limited in the embodiment of the present application.

The duration of the first signal is a first time set, the time offset ranges from 0 to w1, the first time unit is t1, and the first time set includes the duration of one or more first signals.

The duration of the first signal is a second time set, the time offset ranges from 0 to w2, the first time unit is t2, and the second time set includes the duration of one or more first signals.

The elements in the first time set are smaller than the elements in the second time set, w1 is less than or equal to w2, and t1 is less than or equal to t2. The element in the first time set is smaller than the element in the second time set can be understood as any element in the first combination is smaller than any element in the second time set.

In a possible implementation manner, the product of the maximum value of the time offset (or the maximum value of the applied offset plus 1) and the first time unit is the same as the duration of the first signal.

As an example, when the duration of the first signal is 160 ms, the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 20 ms;

When the duration of the first signal is 320ms, the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 20ms;

When the duration of the first signal is 640ms, the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 40ms;

When the duration of the first signal is 1280 ms, the maximum value of the time offset is 15, that is, the value range of the time offset is 0-15, and the first time unit is 80 ms.

At this time, 4 bits need to be used to indicate the time offset. Compared with the 5 bits used to indicate the time offset in the prior art, the embodiment of the present application can save 1 bit of signaling overhead.

As an example, when the duration of the first signal is 160 mss, the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 40 ms;

When the duration of the first signal is 320ms, the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 40ms;

When the duration of the first signal is 640ms, the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 80ms;

When the duration of the first signal is 1280 ms, the maximum value of the time offset is 7, that is, the value range of the time offset is 0-7, and the first time unit is 160 ms.

At this time, 3 bits need to be used to indicate the time offset. Compared with the 5 bits used to indicate the time offset in the prior art, the embodiment of the present application can save 2 bits of signaling overhead.

As an example, when the duration of the first signal is 160 ms, the maximum value of the time offset is 1, that is, the value range of the time offset is 0 to 1, and the first time unit is 80 ms;

When the duration of the first signal is 320ms, the maximum value of the time offset is 3, that is, the value range of the time offset is 0~3, and the first time unit is 80ms;

When the duration of the first signal is 640 ms, the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 160 ms;

When the duration of the first signal is 1280 ms, the maximum value of the time offset is 3, that is, the value range of the time offset is 0 to 3, and the first time unit is 160 ms.

At this time, 2 bits are needed to indicate the time offset. Compared with the 5 bits used to indicate the time offset in the prior art, the embodiment of the present application can save 3 bits of signaling overhead.

It can be understood that the above-mentioned first time unit is 20ms or 40ms or 80ms or 160ms or 320ms, and it can also be understood that the first time unit is 2*frames or 4*frames or 8*frames or 16*frames or 32*frames. At this time, the length of a frame is 10ms.

It should be noted that any formula deformation or table or other predefined rules that obtain the same result as the example fall within the protection scope of the embodiments of this application.

Optionally, in this embodiment of the present application, the first time unit is N times a data frame (or frame), where N is a positive integer greater than or equal to 1. As an example, the value of N may be 2, 4 or 8, which is not limited in the embodiment of the present application. As an example, the length of a data frame may be 10ms, and the length of the first time unit is 20ms, 40ms, 80ms, etc.

It should be noted that the length of a data frame is 10ms as an example. The data frame can also be other time-domain length units, such as time slots, subframes, symbols, ms, us, or s, etc. The embodiments of the present application There is no restriction on this.

Table 12 shows an example of the time offset value in the embodiment of the present application.

Table 12

As shown in Table 12, the length of the first time unit is 2 data frames.

For the duration of the first signal of 160 ms, the actual time offset value is the product of the time offset (timeoffset) and the first time unit. Among them, the value range of timeoffset is 0-7. That is, at this time, the offset indication is performed with the granularity of 2 data frames.

In another way of description, for the duration of the first signal of 160 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 2.

For the duration of the first signal of 320 ms, the actual time offset value is the product of the time offset and the first time unit. Among them, the value range of the time offset is 0-15. That is, at this time, the offset indication is performed with the granularity of 2 data frames.

In another way of description, for the duration of the first signal of 320 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 2.

For the duration of the first signal of 640 ms, the actual time offset value is twice the product of the time offset and the first time unit. Among them, the value range of the time offset is 0-15. That is, at this time, the offset indication is performed with the granularity of 4 data frames.

In another way of description, for the duration of the first signal of 640 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 4.

For the duration of the first signal of 1280 ms, the actual time offset value is 4 times the product of the time offset and the first time unit. Among them, the value range of the time offset is 0-15. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.

In another way of description, for the duration of the first signal of 1280 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-15, and the value of K is 8.

Table 13 shows another example of the time offset value in the embodiment of the present application.

Table 13

DurationDuration	Value range of timeoffsetValue range of timeoffset	Actual value of timeoffsetActual value of timeoffset
160ms160ms	0～30～3	timeoffset4 framestimeoffset4 frames
320ms320ms	0～70～7	timeoffset4 framestimeoffset4 frames
640ms640ms	0～70～7	timeoffset24 framestimeoffset24 frames
1280ms1280ms	0～70～7	timeoffset44 framestimeoffset44 frames

As shown in Table 13, the length of the first time unit is 4 data frames.

For the duration of the first signal of 160 ms, the actual time offset value is the product of the time offset (timeoffset) and the first time unit. Among them, the value range of timeoffset is 0 to 3. That is, at this time, the offset indication is performed with the granularity of 4 data frames.

In another way of description, for the duration of the first signal of 160 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 4.

For the duration of the first signal of 320 ms, the actual time offset value is the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. That is, at this time, the offset indication is performed with the granularity of 4 data frames.

In another way of description, for the duration of the first signal of 320 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 4.

For the duration of the first signal of 640 ms, that is, the actual time offset value is twice the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.

In another way of description, for the duration of the first signal of 640 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 8.

For the duration of the first signal of 1280 ms, the actual time offset value is 4 times the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. In other words, at this time, 16 data frames are used as the granularity for the offset indication.

In another way of describing, for the duration of the first signal of 1280 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-7, and the value of K is 16.

Table 14 shows another example of the time offset value in the embodiment of the present application.

Table 14

DurationDuration	Value range of timeoffsetValue range of timeoffset	Actual value of timeoffsetActual value of timeoffset
160ms160ms	0～10～1	timeoffset8 framestimeoffset8 frames
320ms320ms	0～30～3	timeoffset8 framestimeoffset8 frames
640ms640ms	0～30～3	timeoffset28framestimeoffset28frames
1280ms1280ms	0～30～3	timeoffset48 framestimeoffset48 frames

As shown in Table 14, the length of the first time unit is 8 data frames.

For the duration of the first signal of 160 ms, the actual time offset value is the product of the time offset (timeoffset) and the first time unit. Among them, the value range of timeoffset is 0 to 1. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.

In another way of description, for the duration of the first signal of 160 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, and the value of K is 8.

For the duration of the first signal of 320 ms, the actual time offset value is the product of the time offset and the first time unit. Among them, the value range of time offset is 0～3. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.

In another way of describing, for the duration of the first signal of 320 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 8.

For the duration of the first signal of 640 ms, that is, the actual time offset value is twice the product of the time offset and the first time unit. Among them, the value range of time offset is 0～3. In other words, at this time, the offset indication is performed with the granularity of 16 data frames.

In another way of description, for the duration of the first signal of 640 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0 to 3, and the value of K is 16.

For the duration of the first signal of 1280 ms, the actual time offset value is 4 times the product of the time offset and the first time unit. Among them, the value range of time offset is 0～3. That is, at this time, the offset indication is performed with the granularity of 32 data frames.

In another way of description, for the duration of the first signal of 1280 ms, the actual time offset value is timeoffset*K*frames, where the value range of timeoffset is 0-3, and the value of K is 32.

Table 15 shows another example of the time offset value in the embodiment of the present application.

Table 15

DurationDuration	Value range of timeoffsetValue range of timeoffset	Actual value of timeoffsetActual value of timeoffset
160ms160ms	0～70～7	timeoffset2 framestimeoffset2 frames
320ms320ms	0～70～7	timeoffset4 framestimeoffset4 frames
640ms640ms	0～70～7	timeoffset24 framestimeoffset24 frames
1280ms1280ms	0～70～7	timeoffset44 framestimeoffset44 frames

As shown in Table 15, for the duration of the first signal of 160ms, the length of the first time unit is 2 data frames (frames), and the actual time offset value is the time offset (timeoffset) and the first time The product of units. Among them, the value range of timeoffset is 0-7. That is, at this time, the offset indication is performed with the granularity of 2 data frames.

For the duration of the first signal of 320 ms, the length of the first time unit is 4 data frames (frames), and the actual time offset value is the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. That is, at this time, the offset indication is performed with the granularity of 4 data frames.

For the duration of the first signal of 640 ms, the length of the first time unit is 4 data frames, that is, the actual time offset value is twice the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. In other words, at this time, the offset indication is performed at the granularity of 8 data frames.

For the duration of the first signal of 1280 ms, the length of the first time unit is 4 data frames, and the actual time offset value is 4 times the product of the time offset and the first time unit. Among them, the value range of time offset is 0-7. In other words, at this time, the offset indication is performed with the granularity of 16 data frames.

It should be noted that when the value range of timeoffset is 0 to 1, the second indication information requires 1 bit to indicate. When the value range of timeoffset is 0 to 3, the second indication information requires 2 bits to indicate. When the value range of timeoffset is 0-7, the second indication information requires 3 bits to indicate. When the value range of timeoffset is 0-15, the second indication information requires 4 bits to indicate. Therefore, compared with the need for 5 bits to indicate the timeoffset in the prior art, the system signaling overhead can be saved.

As an example, the first signal is the resynchronization signal RSS of the current cell or neighboring cells of the terminal device, or other signals, which are not limited in the embodiment of the present application.

Fig. 5 shows a schematic diagram of RSS measurement in the prior art. As shown in Figure 5, the network device can configure a measurement gap for each terminal device at the same time in a semi-static manner. As an example, the measurement interval can be 40ms, and the measurement interval is measured in each measurement interval period. The duration is 6ms. In a method for configuring the time offset of the RSS, the time offset of the RSS of the neighboring cell relative to the RSS of the current cell is A times of a subframe, where A is a positive integer greater than or equal to 1. However, when the time offset of the neighboring cell is not properly configured, the terminal device will not be able to measure the RSS in the neighboring cell.

As an example, the network device can configure the RSS signal length of the cell to be 16ms, and the RSS period (periodicity) to 160ms, so that the terminal device can measure in the first measurement period and the fifth measurement period shown in Figure 5 RSS to this cell.

As an example, the time offset of the RSS of neighboring cell 1 relative to the current cell is 4 subframes (one subframe is 10ms in length, and 4 subframes is 40ms in length). At this time, the terminal device can be in the second The RSS of neighboring cell 1 is measured in the first measurement period and the sixth measurement period (not shown in FIG. 5).

As an example, the time offset of the RSS of neighboring cell 1 relative to the current cell is 2 subframes (2 subframes are 20ms in length). At this time, since the RSS of neighboring cell 2 corresponds to the time period, the terminal equipment has not performed measurement, so The terminal equipment cannot measure the RSS of neighboring cell 2.

Optionally, in this embodiment of the application, in order to enable the terminal device to measure the RSS of the neighboring cell, the first time unit may be set to M times the measurement interval period of the terminal device, where M is greater than or equal to 1. A positive integer. In other words, the actual time offset value of the RSS of the neighboring cell is an integer multiple of the measurement interval period.

As an example, when the measurement interval period is 20 ms, the first time unit may be 20 ms, 40 ms, or 80 ms, which is not limited in the embodiment of the present application.

As an example, when the measurement interval period is 40 ms, the first time unit may be 40 ms, 80 ms, or 160 ms, which is not limited in the embodiment of the present application.

As an example, when the measurement interval period is 80 ms, the first time unit may be 80 ms, or 160 ms, which is not limited in the embodiment of the present application.

Therefore, in the embodiment of the present application, the first time unit is set to an integer multiple of the measurement interval period of the terminal device, so that when the network device sends the first signal, the terminal device is always in the state of detecting the first signal. In the application embodiment, the terminal device can measure the first signal, thereby avoiding the waste of signaling and improving the system throughput.

In addition, for FDD duplex mode, different cells in the same network may be out of sync. In this way, although the neighboring cells can measure RSS at the same time according to a certain configuration in theory, due to the asynchrony between the neighboring cells and the current cell , Causing the terminal equipment to fail to measure RSS.

As an example, as shown in Figure 5, theoretically the RSS of the neighboring cell 3 is shown by the dashed RSS, but due to the time difference introduced by non-synchronization, the RSS of the neighboring cell 3 is actually shown by its corresponding solid RSS. At this time, since the terminal device does not perform measurement in the time period corresponding to the actual RSS of the neighboring cell 3, the terminal device cannot measure the RSS of the neighboring cell 3.

Based on this, in some optional embodiments of the present application, the actual time offset value of the first signal may be determined according to the time offset, the first time unit, the second parameter, and the duration, where the second signal The parameters are determined according to the synchronization state between the serving cell where the terminal device is located and the neighboring cells of the serving cell where the terminal device is located.

Table 16 shows an example of the time offset value in the embodiment of the present application.

Table 16

Table 17 shows an example of the time offset value in the embodiment of the present application.

Table 17

Table 18 shows an example of the time offset value in the embodiment of the present application.

Table 18

Table 19 shows an example of the time offset value in the embodiment of the present application.

Table 19

The difference from Tables 12 to 15 is that in Tables 16 to 19, the second parameter x is used to correct the timeoffset, or the second parameter x is used to correct the actual time offset value. As an example, for the duration of 160ms in Table 5, the actual time offset value timeoffset*2frames is corrected to (timeoffset+x)*2frames, or the actual time offset value timeoffset*2frames is corrected to timeoffset*2frames+x.

Therefore, in the embodiments of the present application, by using the second parameter to correct the time offset value or the actual time offset value, the time difference introduced by asynchronous can be eliminated, so that the terminal device can detect the first signal, thereby avoiding the signal. The waste of the order improves the system throughput.

Optionally, the second parameter may be configured by the network device, or measured by the terminal device, or set in advance, which is not specifically limited in the embodiment of the present application.

420. The network device sends the second indication information to the terminal device. Correspondingly, the terminal device receives the second indication information.

430. The terminal device determines the actual time offset value of the first signal according to the second indication information.

Specifically, the terminal device may determine the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value indicated by the second indication information.

440. The terminal device measures the first signal according to the actual time offset value of the first signal.

Therefore, in the embodiment of the present application, compared to the actual offset value of the first signal in the prior art, the actual offset value of the first signal is indicated in the unit of one data frame. One time unit is the granularity for indication. When the length of the first time unit is greater than the length of one data frame, since the granularity of the time offset indication is increased, the embodiment of the present application can reduce the value range of the time offset. In turn, the number of bits used to indicate time offset information in the configuration channel of the first signal is reduced, thereby reducing signaling overhead and improving system throughput. In addition, for terminal equipment, when the signaling overhead is small, power consumption can be saved.

An embodiment of the present application also provides another communication method, wherein the network device can determine third indication information, the third indication information includes N bits for indicating the first channel quality information, and Q bits for indicating the second channel Quality information, where N>Q. Wherein, the Q bits used to indicate the second channel quality information are Q bits in the first position among the N bits used to indicate the first channel quality information, or the Q bits are The Q bits in the first position among the N bits, the first position may be the highest Q bits or the lowest Q bits. Optionally, Q=2, N=4 or 8, but the embodiment of the present application is not limited to this.

Channel state information includes one or a combination of the following: channel quality indicator (CQI), the number of repetitions of the first channel, reference signal received quality (RSRQ), reference signal receiving power (reference signal receiving power) , RSRP), the number of repetitions of the first channel. Wherein, the first channel may include a physical downlink data channel, or physical uplink data channel, or physical downlink control channel, or physical uplink control channel, or reference physical downlink data channel, or reference physical uplink data channel, or reference physical downlink control Channel, or refer to the physical uplink control channel, etc.

The communication method provided by the embodiment of the present application is described in detail above with reference to FIGS. 1 to 5, and the communication device provided by the embodiment of the present application is described in detail below with reference to FIGS. 6 and 7.

FIG. 6 shows a schematic block diagram of a communication device 600 provided by an embodiment of the present application. As shown in FIG. 6, the device 600 may include a transceiver unit 610 and a processing unit 620.

In a possible situation, the apparatus 600 may correspond to the network equipment described in the above method, or may correspond to the chip or component of the network equipment, and each module or unit in the apparatus 600 may be used to execute the network equipment in the above method. Each action or process performed.

The processing unit 620 is configured to determine first indication information, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be determined according to the location of the second signal. Is determined by the frequency domain position of and the first indication information, the first signal is the resynchronization signal of the neighboring cell of the second device, and the second signal is the resynchronization signal of the serving cell of the second device signal;

The transceiver unit 610 is configured to send the first indication information to the second device.

As an optional embodiment, the first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrow band where the second signal is located, and the first bit state The set includes one or more bit states; or

As an optional embodiment, k bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

As an optional embodiment, the frequency domain position of the first signal can be determined according to the frequency domain position where the second signal is located, the first indication information, and the first parameter, where the first parameter is The interval granularity of the frequency domain position of the first signal;

It should be understood that, for the specific process of each unit in the apparatus 600 performing the foregoing corresponding steps, please refer to the foregoing description in conjunction with the network equipment in the method embodiment. For the sake of brevity, details are not repeated here.

In a possible situation, the device 600 may correspond to the terminal device described in the above method, or may correspond to the chip or component of the terminal device, and each module or unit in the device 600 may be used to execute the terminal device in the above method. Each action or process performed.

The transceiver module 610 is configured to receive first indication information sent by a first device, where the first indication information is used to indicate frequency domain position information of a first signal of the second device, and the first signal is the first signal. 2. Resynchronization signals of neighboring cells of the device;

The processing module 620 is configured to determine the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the reconfiguration of the serving cell of the second device. Synchronization signal

The processing module 620 is further configured to measure the first signal according to the frequency domain position where the first signal is located.

As an optional embodiment, the processing module 620 is specifically configured to:

Determine the frequency domain position of the first signal according to the first indication information, the frequency domain position of the second signal, and a first parameter, where the first parameter is the frequency domain position of the first signal Interval granularity

It should be understood that, for the specific process of each unit in the apparatus 600 performing the above corresponding steps, please refer to the foregoing description in conjunction with the terminal device in the method embodiment. For the sake of brevity, details are not repeated here.

The processing module 620 is configured to determine second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset. The first time unit and duration are determined, where, when the duration of the first signal is 160 ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or, The first time unit is M times the measurement interval period of the second device, where M is a positive integer;

The transceiver module 610 is configured to send the second indication information to the second device.

In an optional embodiment, the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, wherein the second parameter is determined according to the The synchronization state between the serving cell of the second device and the neighboring cell of the second device is determined.

In an optional embodiment, when the duration of the first signal is 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value of timeoffset ranges from 0 to 1, and K is 8. , Or the value range of timeoffset is 0～3, K is 4, or the value range of timeoffset is 0～7, K is 2, where K*frames is the first time unit;

The transceiver module 610 is configured to receive second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;

The processing module 620 is configured to determine the actual time offset value of the first signal according to the time offset, the first time unit, and the duration value, where, when the duration of the first signal is 160 ms, the The first time unit is N times a data frame, where N is a positive integer greater than 1;

The processing module 620 is further configured to measure the first signal according to the actual time offset value of the first signal by the second device.

In an optional embodiment, the processing module 620 is specifically configured to:

Determine the actual time offset value of the first signal according to the time offset, the first time unit, the duration value, and a second parameter, wherein the second parameter is based on the second parameter The synchronization state between the serving cell of the device and the neighboring cell of the second device is determined.

The apparatus 600 of each of the foregoing solutions has the function of implementing the corresponding steps performed by the first device or the second device in the foregoing method, which may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the sending unit can be replaced by a transmitter, the receiving unit can be replaced by a receiver, and other units, such as a determining unit, can be replaced by a processor, and each method is executed separately Transceiving operations and related processing operations in the embodiment.

In a specific implementation process, the processor can be used to perform, for example, but not limited to, baseband related processing, and the transceiver can be used to perform, for example, but not limited to, radio frequency transceiving. The above-mentioned devices may be respectively arranged on independent chips, or at least partly or fully arranged on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor and the transceiver can be integrated on the same chip, and the digital baseband processor can be set on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip may be called a system on chip (SOC). Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific needs of product design. The embodiment of the present application does not limit the specific implementation form of the foregoing device.

It can be understood that the processor involved in the foregoing embodiments can execute program instructions through a hardware platform with a processor and a communication interface to implement the functions involved in any design of the foregoing embodiments of this application, based on this As shown in FIG. 7, an embodiment of the present application provides a schematic block diagram of a communication device 700. The device 700 includes a processor 710, a transceiver 720, and a memory 730. The processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path. The memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730 to control the transceiver 720 to send signals and / Or receive signal.

It should be understood that the apparatus 600 in FIG. 6 in the embodiment of the present application may be implemented by the apparatus 700 in FIG. 7, and may be used to execute various steps and/or processes corresponding to the first device or the second device in the foregoing method embodiment.

It can be understood that the methods, processes, operations, or steps involved in the various designs described in the embodiments of the present application can be implemented in a one-to-one correspondence manner through computer software, electronic hardware, or a combination of computer software and electronic hardware. Corresponding realization. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. For example, considering the good versatility, low cost, software and hardware decoupling, etc., they can be implemented by executing program instructions, for example , Considering system performance and reliability, etc., it can be realized by using a dedicated circuit. Ordinary technicians can use different methods for each specific application to implement the described functions, which are not limited here.

According to the method provided in the embodiments of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the method in the above embodiment . The various embodiments in this application can also be combined with each other.

According to the method provided in the embodiments of the present application, the present application also provides a computer-readable medium with a program code stored in the computer-readable interpretation, and when the program code runs on a computer, the computer executes the method in the foregoing embodiment .

In the embodiments of the present application, it should be noted that the foregoing method embodiments in the embodiments of the present application may be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. There are many different types of RAM, such as static RAM (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate Synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random memory Take memory (direct rambus RAM, DR RAM).

It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application. The implementation process constitutes any limitation.

The terms "first" and "second" appearing in this application are only used to distinguish different objects, and "first" and "second" themselves do not limit the actual order or function of the objects they modify. Any embodiment or design solution described as "exemplary", "example", "for example", "optionally" or "in certain implementations" in this application should not be construed as being better than other implementations. Examples or design solutions are more preferred or more advantageous. To be precise, these words are used to present related concepts in a concrete way.

Various messages/information/equipment/network elements/systems/devices/operations that may appear in this application have been assigned names. It is understandable that these specific names do not constitute a reference to related objects. Limited, the assigned name can be changed according to factors such as the scene, context, or usage habits. The understanding of the technical meaning of the technical terms in this application should be determined mainly from the functions and technical effects embodied/implemented in the technical solution .

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product may include one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic disk), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A communication method, characterized in that it comprises:

The first device determines first indication information, which is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be based on the frequency domain where the second signal is located. The location and the first indication information are determined, the first signal is a resynchronization signal of a neighboring cell of the second device, and the second signal is a resynchronization signal of a serving cell of the second device;

The first device sends the first indication information to the second device.
The method according to claim 1, wherein:

The first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

The first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or

The second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the The second set of bit states includes one or more bit states.
The method according to claim 1, wherein:

The first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
The method according to any one of claims 1-3, characterized in that,

The frequency domain position of the first signal can be determined according to the frequency domain position of the second signal, the first indication information, and a first parameter, where the first parameter is the frequency domain position of the first signal Interval granularity;

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is k1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is k2;

Wherein, the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1<k2.
A communication method, characterized in that it comprises:

The second device receives the first indication information sent by the first device, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, and the first signal is the frequency domain position information of the second device. Resynchronization signal of neighboring cells;

The second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the resynchronization of the serving cell of the second device signal;

The second device measures the first signal according to the frequency domain position where the first signal is located.
The method of claim 5, wherein:

The first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

The first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or

The second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the The second set of bit states includes one or more bit states.
The method of claim 5, wherein:

The first indication information used to indicate the frequency domain location information of the first signal of the second device includes:

K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
The method according to any one of claims 5-7, wherein the second device determines the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal ,include:

The second device determines the frequency domain position of the first signal according to the first indication information, the frequency domain position of the second signal, and a first parameter, where the first parameter is the first parameter. Interval granularity of signal frequency domain position;

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is k1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is k2;

Wherein, the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1<k2.
A communication method, characterized in that it comprises:

The first device determines second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset and the first signal. A time unit and duration are determined, where, when the duration of the first signal is 160 ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or the first signal A time unit is M times the measurement interval period of the second device, where M is a positive integer;

The first device sends the second indication information to the second device.
The method according to claim 9, wherein the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, wherein the The second parameter is determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.
The method according to claim 9 or 10, wherein:

When the duration of the first signal is 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, K is 8, or the value range of timeoffset is 0～3, K is 4, or the value range of timeoffset is 0～7, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 320ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 8, or the value range of timeoffset is 0～7, K is 4, or the range of timeoffset is 0～15, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 640 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 16, or the value range of timeoffset is 0～7, K is 8, or the range of timeoffset is 0～15, K is 4, where K*frames is the first time unit;

When the duration of the first signal is 1280 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 32, or the value range of timeoffset is 0～7, K is 16, or the value range of timeoffset is 0～15, K is 8, where K*frames is the first time unit;

Wherein, the timeoffset represents the time offset, and the frames represents the length of the data frame.
A communication method, characterized in that it comprises:

The second device receives second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;

The second device determines the actual time offset value of the first signal according to the time offset, the first time unit and the duration, where, when the duration of the first signal is 160 ms, the first signal The time unit is N times of a data frame, where N is a positive integer greater than 1;

The second device measures the first signal according to the actual time offset value of the first signal.
The method according to claim 12, wherein the determining by the second device according to the time offset, the first time unit, and the duration value, and determining the actual time offset value of the first signal comprises:

The second device determines the actual time offset value of the first signal according to the time offset, the first time unit, the duration value, and a second parameter, where the second parameter is Determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.
The method according to claim 12 or 13, characterized in that:

When the duration of the first signal is 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, K is 8, or the value range of timeoffset is 0～3, K is 4, or the value range of timeoffset is 0～7, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 320ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 8, or the value range of timeoffset is 0～7, K is 4, or the range of timeoffset is 0～15, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 640 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 16, or the value range of timeoffset is 0～7, K is 8, or the range of timeoffset is 0～15, K is 4, where K*frames is the first time unit;

When the duration of the first signal is 1280 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 32, or the value range of timeoffset is 0～7, K is 16, or the range of timeoffset is 0～15, K is 8, where K*frames is the first time unit;

Wherein, the timeoffset represents the time offset, and the frames represents the length of the data frame.
A communication device, characterized by comprising:

The processing module is configured to determine first indication information, where the first indication information is used to indicate the frequency domain position information of the first signal of the second device, so that the frequency domain position of the first signal can be based on where the second signal is The frequency domain position and the first indication information are determined, the first signal is a resynchronization signal of a neighboring cell of the second device, and the second signal is a resynchronization signal of a serving cell of the second device ；

The transceiver module is configured to send the first indication information to the second device.
The device according to claim 15, wherein:

The first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or

The second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the The second set of bit states includes one or more bit states.
The device according to claim 15, wherein:

K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
The device according to any one of claims 15-17, wherein:

The frequency domain position of the first signal can be determined according to the frequency domain position of the second signal, the first indication information, and a first parameter, where the first parameter is the frequency domain position of the first signal Interval granularity;

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is k1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is k2;

Wherein, the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1<k2.
A communication device, characterized by comprising:

The transceiver module is configured to receive first indication information sent by a first device, where the first indication information is used to indicate frequency domain position information of a first signal of the second device, and the first signal is the second Resynchronization signal of neighboring cells of the equipment;

The processing module is configured to determine the frequency domain position of the first signal according to the first indication information and the frequency domain position of the second signal, and the second signal is the resynchronization of the serving cell of the second device signal;

The processing module is further configured to measure the first signal according to the frequency domain position where the first signal is located.
The device according to claim 19, wherein:

The first bit state set corresponding to the bit of the first indication information indicates the frequency domain position of the first signal in the narrowband where the second signal is located, and the first bit state set includes one or more bits Status; or

The second state set corresponding to the bits of the first indication information indicates the first narrowband where the first signal is located, and the frequency domain positions of the first signal and the second signal in the narrowband are the same, the The second set of bit states includes one or more bit states.
The device according to claim 19, wherein:

K bits of the N bits of the first indication information indicate an offset between the first narrowband where the first signal is located and the second narrowband where the second signal is located;

The remaining Nk bits of the N bits indicate the offset of the frequency domain position of the first signal in the first narrowband from the frequency domain position of the second signal in the second narrowband, or The remaining Nk bits of the N bits indicate the frequency domain position of the first signal in the first narrowband.
The device according to any one of claims 19-21, wherein the processing module is specifically configured to:

Determine the frequency domain position of the first signal according to the first indication information, the frequency domain position of the second signal, and a first parameter, where the first parameter is the frequency domain position of the first signal Interval granularity

When the system bandwidth of the neighboring cell or the serving cell belongs to the first bandwidth set, the first parameter is k1;

When the system bandwidth of the neighboring cell or the serving cell belongs to the second bandwidth set, the first parameter is k2;

Wherein, the elements in the first bandwidth set are smaller than the elements in the second bandwidth set, and k1<k2.
A communication device, characterized by comprising:

The processing module is configured to determine second indication information, where the second indication information is used to indicate the time offset of the first signal of the second device, so that the actual time offset value of the first signal can be based on the time offset , The first time unit and duration are determined, where, when the duration of the first signal is 160ms, the first time unit is N times a data frame, where N is a positive integer greater than 1, or The first time unit is M times the measurement interval period of the second device, where M is a positive integer;

The transceiver module is configured to send the second indication information to the second device.
The device according to claim 23, wherein the actual time offset value of the first signal is determined according to the time offset, the first time unit, the duration, and the second parameter, wherein the The second parameter is determined according to the synchronization state between the serving cell of the second device and the neighboring cell of the second device.
The device according to claim 23 or 24, wherein:

When the duration of the first signal is 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, K is 8, or the value range of timeoffset is 0～3, K is 4, or the value range of timeoffset is 0～7, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 320ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 8, or the value range of timeoffset is 0～7, K is 4, or the range of timeoffset is 0～15, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 640 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 16, or the value range of timeoffset is 0～7, K is 8, or the range of timeoffset is 0～15, K is 4, where K*frames is the first time unit;

When the duration of the first signal is 1280 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 32, or the value range of timeoffset is 0～7, K is 16, or the range of timeoffset is 0～15, K is 8, where K*frames is the first time unit;

Wherein, the timeoffset represents the time offset, and the frames represents the length of the data frame.
A communication device, characterized by comprising:

A transceiver module, configured to receive second indication information sent by the first device, where the second indication information is used to indicate the time offset of the first signal of the second device;

The processing module is configured to determine the actual time offset value of the first signal according to the time offset, the first time unit and the duration value, wherein, when the duration of the first signal is 160 ms, the first signal A time unit is N times of a data frame, where N is a positive integer greater than 1;

The processing module is also used for the second device to measure the first signal according to the actual time offset value of the first signal.
The device according to claim 26, wherein the processing module is specifically configured to:

Determine the actual time offset value of the first signal according to the time offset, the first time unit, the duration value, and a second parameter, where the second parameter is based on the second The synchronization state between the serving cell of the device and the neighboring cell of the second device is determined.
The device according to claim 26 or 27, wherein:

When the duration of the first signal is 160 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0 to 1, K is 8, or the value range of timeoffset is 0～3, K is 4, or the value range of timeoffset is 0～7, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 320ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 8, or the value range of timeoffset is 0～7, K is 4, or the range of timeoffset is 0～15, K is 2, where K*frames is the first time unit;

When the duration of the first signal is 640 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 16, or the value range of timeoffset is 0～7, K is 8, or the range of timeoffset is 0～15, K is 4, where K*frames is the first time unit;

When the duration of the first signal is 1280 ms, the actual time offset value of the first signal is timeoffset*K*frames, where the value range of timeoffset is 0~3, K is 32, or the value range of timeoffset is 0～7, K is 16, or the range of timeoffset is 0～15, K is 8, where K*frames is the first time unit;

Wherein, the timeoffset represents the time offset, and the frames represents the length of the data frame.