WO2020061755A1 - Method for indicating resource mapping approach and related product - Google Patents

Abstract

Disclosed in embodiments of the present invention are a method for indicating a resource mapping approach and a related product. The method comprises: acquiring first configuration information; determining, according to the first configuration information, a resource mapping approach for a first sidelink transmission channel; and receiving the first sidelink transmission channel according to the resource mapping approach. The embodiments of the present invention facilitate enhancing flexibility of indicating a resource mapping approach, and facilitate efficient utilization of a spectrum resource.

Description

Resource mapping mode indication method and related products Technical field

The present invention relates to the field of communications technologies, and in particular, to a method for indicating a resource mapping mode and related products.

Background technique

The Internet of Vehicles system is a side link transmission technology (Sidelink, SL) based on Long-Term Evolution (LTE)-End-to-End (Device to Device (D2D)), which communicates with traditional LTE systems through base stations. The receiving or sending methods are different. The Internet of Vehicles system uses end-to-end direct communication. In future application scenarios such as autonomous driving, users have higher requirements for data interaction between vehicles, such as higher throughput, more Low latency, higher reliability, greater coverage, and more flexible resource allocation.

Summary of the Invention

Embodiments of the present invention provide a resource mapping mode indication method and related products, so as to improve the flexibility of a communication system to indicate a resource mapping mode and improve the utilization rate of spectrum resources.

In a first aspect, an embodiment of the present invention provides a resource mapping mode indication method, which is applied to a first terminal, and the method includes:

Obtaining first configuration information;

Determining a resource mapping mode of the first lateral transmission channel according to the first configuration information;

Receiving the first lateral transmission channel according to the resource mapping manner.

According to a second aspect, an embodiment of the present invention provides a terminal, where the terminal is a first terminal, and the first terminal includes a processing unit and a communication unit,

The processing unit is configured to obtain first configuration information through the communication unit; and determine a resource mapping manner of a first side-channel transmission channel according to the first configuration information; and according to the resource mapping manner through the communication unit Receiving the first lateral transmission channel.

According to a third aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes the program, and the program includes instructions for executing steps in any method in the first aspect of the embodiments of the present invention.

According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the implementation of the present invention. Example Some or all of the steps described in any of the methods of the first aspect.

In a fifth aspect, an embodiment of the present invention provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Some or all of the steps described in any method of the first aspect of the embodiment of the invention. The computer program product can be a software installation package.

It can be seen that, in the embodiment of the present invention, the first terminal first obtains the first configuration information, secondly, determines the resource mapping mode of the first lateral transmission channel according to the first configuration information, and finally, receives the first lateral transmission channel according to the resource mapping method. . Because the configuration information can configure resource mapping methods in different situations (such as different subcarrier intervals), the first terminal can use the spectrum resource mapping data more flexibly, avoiding that the first terminal cannot accurately adapt to multiple types using a fixed resource mapping method Scenarios occur, which is conducive to improving the flexibility of the system's configuration resource mapping and improving the utilization of spectrum resources.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings needed to be used in the embodiments or the description of the prior art will be briefly introduced below.

FIG. 1A is a network architecture diagram of a vehicle networking communication system according to an embodiment of the present invention; FIG.

FIG. 1B is a network architecture diagram of another vehicle networking communication system according to an embodiment of the present invention; FIG.

FIG. 1C is a structural example diagram of a subframe provided by an embodiment of the present invention; FIG.

2A is a schematic flowchart of a resource mapping mode indication method according to an embodiment of the present invention;

FIG. 2B is an exemplary diagram of a resource mapping manner of a time domain symbol according to an embodiment of the present invention; FIG.

FIG. 2C is an exemplary waveform diagram of time-domain symbols in a time-domain period according to an embodiment of the present invention; FIG.

3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 4 is a functional block diagram of a terminal according to an embodiment of the present invention.

detailed description

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

In the Third Generation Partnership Project (3GPP) Release 14 (Rel-14), the Internet of Vehicles technology was standardized, and two transmission modes were defined: Mode 3 and Mode 4.

Mode 3: Please refer to FIG. 1A, the transmission resources of the terminal are allocated by the base station, and the terminal sends data on the side link according to the resources allocated by the base station; the base station can allocate resources for the terminal for a single transmission, or it can Allocate resources for semi-static transmission; the base station allocates side-link transmission resources through downlink (Downlink, DL) control signaling.

Mode 4: Please refer to FIG. 1B, the terminal adopts a sensing and reservation transmission mode. The terminal obtains a set of available transmission resources by listening in a resource pool, and the terminal randomly selects a resource from the set for data transmission. Because the services in the IoV system have periodic characteristics, the terminal usually adopts a semi-static transmission method, that is, after the terminal selects a transmission resource, it will continuously use the resource in multiple transmission cycles, thereby reducing resource reselection and The probability of resource conflicts. The terminal will carry the information for reserving the next transmission resource in the control information transmitted this time, so that other terminals can determine whether this resource is reserved and used by the user by detecting the control information of the user, thereby reducing resource conflicts. purpose.

When the terminal accesses the mobile communication network provided by the base station, the terminal and the base station can communicate with each other through a wireless link. The communication connection method can be a single connection method, a dual connection method, or a multiple connection method. When the communication connection method is a single connection, In this mode, the base station can be an LTE base station or an NR base station (also known as a gNB base station). When the communication mode is a dual connection mode (specifically, it can be implemented by carrier aggregation CA technology or multiple base stations), and the terminal is connected to multiple base stations In this case, the multiple base stations may be a primary base station and a secondary base station, and the base stations perform data backhaul through a backhaul link. The primary base station may be an LTE base station, and the secondary base station may be an LTE base station. The base station may be an LTE base station, or the primary base station may be an NR base station, and the secondary base station may be an NR base station. The terminals involved in the embodiments of the present invention may include various handheld devices with infinite communication functions, vehicle-mounted devices, computing devices, or other processing devices connected to a wireless modem, and various forms of user equipment (User Equipment, UE), A mobile station (MS), a terminal device (Roadside Unit), a roadside unit (RSU), and so on. For convenience of description, the terminals mentioned above are collectively referred to as terminals.

In the new air interface NR-Vehicle to Other Equipment (V2X), it is necessary to support autonomous driving, so higher requirements are placed on data interaction between vehicles, such as higher throughput, lower latency, Higher reliability, greater coverage, and more flexible resource allocation.

In LTE-V2X, the physical side link control channel (PSCCH) and the physical side link shared channel (PSSCH) have the same demodulation reference signal (DMRS) format. Four time-domain symbols in the frame are used to transmit DMRS, as shown in Figure 1C. Among them, the first symbol is used as AGC (Automatic Gain Control), which is used by the receiver to adjust the received parameters. The sender maps the data to be transmitted on the symbol, but on the receiver, the data of the symbol is usually Not used for data demodulation; the last symbol is used as GP (Guard Period), and the data to be transmitted is mapped on the symbol on the transmitting end, but the data on the symbol is not transmitted, or the symbol on the transmitting end is not Map the data to be transmitted. Generally, this symbol is used for transmitting and receiving conversion (also called transmitting and receiving conversion); other time domain symbols are used for transmitting data of PSCCH or PSSCH.

In LTE-V2X, the subcarrier interval of the system is fixed at 15kHz, so the time length corresponding to one time domain symbol is about 67us (microseconds). In the NR-V2X system, the subcarrier interval of the system can be 15kHz / 30kHz / 60kHz / 120kHz, etc., and the length of a corresponding time-domain symbol is approximately 67us / 33us / 16us / 8us. It is 13us, so the proportion of time domain symbols occupied by the time of transmission and reception conversion is different according to the size of the subcarrier interval. For example, the time of transmission and reception conversion may occupy a part of a time domain symbol, or a time domain symbol, or 2 Time domain symbols. Therefore, how to flexibly indicate the resource mapping mode is a problem to be solved.

In view of the above problems, this application proposes a resource mapping method for time-domain symbols of a time unit in a connected vehicle system. On this time-domain symbol, all data can be mapped, all are empty, and some data are mapped. The specific mapping method is The configuration information is OK. Specific description will be given below.

Please refer to FIG. 2A. FIG. 2A is a resource mapping mode indication method according to an embodiment of the present invention, which is applied to a first terminal in a communication system such as an LTE-V2X system. The method includes:

Step 201: The first terminal obtains first configuration information.

In an implementation manner, the first configuration information includes first indication information, and the first indication information is used to indicate a resource mapping manner of the first lateral transmission channel.

In an implementation manner, the first configuration information is used to describe a correspondence relationship between the index information and a resource mapping mode of a lateral transmission channel.

In an implementation manner, the first configuration information is used to describe a correspondence between a basic parameter set of a lateral transmission channel and a resource mapping manner of the transmission channel, such as a subcarrier interval size of the lateral transmission channel and a transmission channel's Correspondence between resource mapping methods.

In an implementation manner, the first configuration information is used to describe a correspondence between a carrier frequency of a lateral transmission channel and a resource mapping mode of the transmission channel.

In step 202, the first terminal determines a resource mapping mode of the first lateral transmission channel according to the first configuration information.

The resource mapping mode is used to indicate a mapping relationship between a resource unit of at least one time-domain symbol of a first lateral transmission channel and data to be transmitted, such as a relationship between a resource unit of the first time-domain symbol and data to be transmitted. Between the resource units of the last time-domain symbol and the data to be transmitted.

In a possible example, the resource mapping manner includes a first resource mapping manner and / or a second resource mapping manner, where the first resource mapping manner is applicable to a first time domain symbol of a time unit, such as Used as the time domain symbol of AGC, the second resource mapping method is applicable to the last time domain symbol of a time unit, such as the time domain symbol of GP.

A time unit may be a time slot, a sub-frame, a short transmission time interval (sTTI), or a time unit is a time domain size used to transmit the first lateral channel.

For example, one subframe includes both the physical side row control channel PSCCH and the physical side row shared channel PSSCH. The two are in Time Division Multiplexing (TDM) mode. The PSCCH accounts for the first 6 time domain symbols, and the PSSCH accounts for For the remaining 8 time-domain symbols, for PSCCH, one time unit is 6 time-domain symbols; for PSSCH, one time unit is 8 time-domain symbols.

In a possible example, the resource mapping mode of the first lateral transmission channel includes at least one of the following: the first time-domain symbol does not map data, and one data is mapped per K resource units on the first time-domain symbol, where The first time-domain symbol is a time-domain symbol in a time unit where the first lateral transmission channel is located, and K is a positive integer. Further, the resource unit on the first time-domain symbol is a resource unit within a frequency domain range of the first lateral transmission channel.

Wherein, mapping one data per K resource units means that the data to be transmitted is mapped to the resource unit corresponding to the resource unit index (N_RB_start * 12 + k * K + m), and N_RB_start indicates that the frequency domain of the first side transmission channel starts from Start resource block position, k = 0,1,2,3 ..., m is a positive integer less than K or 0, m can be pre-configured, or network configuration, or other terminal configuration; the value of k should meet (N_RB_start * 12 + k * K + m) The corresponding frequency domain resource unit is within the frequency domain resource range of the first side transmission channel. For example, the frequency domain resource range of the first lateral transmission channel is the physical resource block (PRB, Physical Resource Block) index [10,19], a total of 10 PRBs, then N_RB_start = 10, N_RB_start * 12 + k * K + m A resource unit that is 120 or more and 239 or less.

For example, in the NR-V2X system, the subcarrier interval of the system may be 15kHz / 30kHz / 60kHz / 120kHz, etc., and the length of a corresponding time domain symbol is about 67us / 33us / 16us / 8us. If the terminal sends and receives The conversion time is about 13us, so the proportion of time-domain symbols occupied by the transmit-receive conversion time varies according to the size of the subcarrier interval. For example, the transmit-receive conversion time may occupy a part of a symbol or a time-domain symbol. Or the transmission and reception conversion time of two time domain symbols may occupy a part of one symbol, or one time domain symbol, or two time domain symbols.

In order to more effectively improve the resource utilization rate of the system, a resource mapping method as shown in FIG. 2B can be adopted: FIG. 2B only illustrates a way to improve the resource utilization rate of the GP symbol, which is also applicable to the AGC symbol. In FIG. 2B, on the last symbol used as a GP, one piece of data to be transmitted is mapped on every two subcarriers, specifically, data is mapped on resource units with even indexes, and data is not mapped on resource units with odd indexes. According to the principle of the time-frequency conversion characteristic of the Fourier transform, it can be known that the time domain signal of the symbol is characterized by two repeated time domain waveforms within the time range corresponding to the time domain symbol, as shown in FIG. 2C, where T Represents the time length of a time-domain symbol. Within T, the time-domain waveform is repeated twice. At the transmitting end, the second half of the signal may not be transmitted, and at the receiving end, the data sent by the transmitting end on the last time domain symbol may be recovered through signal processing according to the received first half of the data. Therefore, in NR-V2X, when different subcarrier intervals are used, the resource mapping mode may be different. For example, at a subcarrier interval of 15 kHz, one piece of data can be mapped to every four subcarriers at the last time domain symbol, at 30 kHz, one piece of data can be mapped to two subcarriers, and at 60 kHz, no data is mapped to the last symbol.

In specific implementation, since the preset operations associated with time-domain symbols (such as transmission and reception conversion operations or automatic gain control adjustment operations) are generally agreed upon, the duration of the time-domain symbols and the processing time of the preset operations are not fixed, so Based on the characteristic of the variable duration, a reasonable value interval of K can be determined through the constraints of these two durations, to ensure that there is sufficient duration to process the preset operation, and to make full use of the remaining duration to map the data to be transmitted To improve spectrum resource utilization. In simple terms, the time of unmapped data of the current time domain symbol must be greater than or equal to the preset operation time associated with the time symbol (such as the above-mentioned transmission and reception conversion time), or the current time domain symbol and at least one adjacent time domain The duration of the symbol must be greater than or equal to the preset operating time associated with the time domain symbol. The principle is described in detail below with examples.

In the first example, for the first time domain symbol, K is determined based on the automatic gain control adjustment time and the time of the time domain symbol. From the essential characteristics of the Fourier transform, if one data is mapped for every K resource units on the first time domain symbol of the first side link transmission channel, the waveform repeats K times within the time range of the time domain symbol. , Where the duration of one of the repeated waveforms should be greater than or equal to the automatic gain control adjustment time, so that the number K can be calculated based on the duration of the repeated waveforms.

For example, for a subcarrier interval of 15kHz, that is, the length of the first time domain symbol is about 67us, and if the automatic gain control adjustment time is 13us, the duration of the repeated waveform of the time domain symbol in a time domain period t should be greater than 13us, and the number K can be calculated as 4 (67us / 4 = 16.75us), or 3 (67us / 3 ≈ 22.33us), or 2 (67us / 2 = 33.35us), or 1 (67us / 1 = 67us). For example, when K = 4, that is, one data is mapped per 4 resource units in the frequency domain. In the time domain, the waveform is repeated 4 times within the time range of a time domain symbol, and the duration of each waveform is 16.75us. The receiver can use the signal corresponding to the first repeated waveform to perform automatic gain control, and the signal corresponding to the next three repeated waveforms can be used for data demodulation. When K = 2, that is, one data is mapped every 2 resource units in the frequency domain. In the time domain, the waveform is repeated twice within the time range of a time domain symbol. The duration of each waveform is 33.35us. The terminal can use the signal corresponding to the first repeated waveform to perform automatic gain control, and the signal corresponding to the second repeated waveform can be used for data demodulation. At this time, compared with the case of K = 4, when K = 2, More data can be mapped in the frequency domain, but in the time domain, because only the data of the second waveform can be used for demodulation, it is equivalent to half of the signal energy available, and the effective energy is 1/2 of the total energy of the entire symbol. When K = 4, there are three repeated time domain waveforms that can be used for demodulation, and the effective energy is 3/4 of the total energy of the entire symbol. When K = 1, the waveform does not repeat within the time range of a time domain symbol. A part of the time domain signal corresponding to the waveform is used for automatic gain control, which will cause data loss in this part and affect demodulation performance. The signals on the network are not available, similar to the case where the first time domain symbol in LTE-V2X is used for AGC.

For example, for a subcarrier interval of 30kHz, that is, the length of the first time domain symbol is about 33us, and if the automatic gain control adjustment time is 13us, the time length of the repeated waveform of the time domain symbol in a time domain period t should be greater than 13us, and the number K can be calculated as 2 (33/2 = 16.5us), or 1 (33/1 = 33us).

For example, for a subcarrier interval of 60kHz, that is, the length of the first time domain symbol is about 16us, and if the automatic gain control adjustment time is 13us, the duration of the repeated waveform of the time domain symbol in a time domain period t should be greater than 13us, and the calculated number K can be 1 (16/1 = 16us).

For example, for a case where the subcarrier interval is 120kHz, that is, the length of the first time domain symbol is about 8us, and if the automatic gain control adjustment time is 13us, the duration of the repeated waveform of the time domain symbol in a time domain period t should be greater than 13us. Because the length of the entire time domain symbol is less than 13us, the signal of this time domain symbol will be used for automatic gain control adjustment. In addition, the signal of the second time domain symbol will also be used for automatic gain control adjustment. That is, the resource units of the first and second symbols all map data, but this part of the data is not used for data demodulation at the receiving end, but is used for automatic gain control adjustment operation to ensure that the automatic gain control adjustment has sufficient processing time.

Optionally, the symbols used for the automatic gain control adjustment operation may not map data to be transmitted, but instead map other data, for example, may be randomly generated data.

It can be seen that in this example, if the resource unit of the first symbol can guarantee the normal execution of the automatic gain control adjustment sending and receiving operation, the data of some resource units is mapped to improve the resource utilization rate. If the entire resource unit of the first symbol is not To ensure that the automatic gain control adjustment operation is performed, at least one adjacent symbol is further configured to collectively ensure the automatic gain control adjustment transmission and reception operation, and improve data transmission stability.

In the second example, for the last time-domain symbol, K is determined based on the transmission and reception conversion time associated with the last time-domain symbol and the time of the time-domain symbol. According to the essential characteristics of the Fourier transform, if the first One data is mapped per K resource units on the last time domain symbol of one side of the downlink transmission channel. Within the time range of the time domain symbol, the waveform repeats K times, and the duration of one of the repeated waveforms should be greater than or It is equal to the transmission and reception conversion time, so that the number K can be calculated according to the length of the repeated waveform.

For example, for a subcarrier interval of 15 kHz, that is, the length of a time-domain symbol is about 67 us. If the processing time of the transmit-receive conversion operation is 13 us, the duration of the repeated waveform of the time-domain symbol in a time-domain period t should be greater than 13us, and the number K can be calculated as 4 (67us / 4 = 16.75us), or 3 (67us / 3 ≈ 22.33us), or 2 (67us / 2 = 33.35us), or the last time domain symbol No data is mapped on the data, or data is mapped on the last time-domain symbol, but the data on the symbol is not sent. For example, when K = 4, that is, one data is mapped per 4 resource units in the frequency domain. In the time domain, the waveform is repeated 4 times within the time range of a time domain symbol, and the duration of each waveform is 16.75us. The transmitting end of the first lateral transmission channel can send signals corresponding to the first three repeated waveforms, instead of sending signals corresponding to the last repeated waveform, and use the time of the last repeated waveform to perform transmission and reception conversion. As another example, when K = 2, that is, one data is mapped every 2 resource units in the frequency domain. In the time domain, the waveform is repeated twice within the time range of a time domain symbol, and the duration of each waveform is 33.35. us, the transmitting end of the first side line transmission channel can send the signal corresponding to the first repeated waveform, instead of sending the signal corresponding to the first repeated waveform, use the time of the second repeated waveform to perform transmission and reception conversion. At this time, compared with the case of K = 4, when K = 2, more data can be mapped in the frequency domain, but in the time domain, because only the first waveform data is transmitted, it is equivalent to half the signal energy Available, the effective energy is 1/2 of the total energy of the entire symbol, and when K = 4, three repeated time-domain waveform data are sent, and the effective energy is 3/4 of the total energy of the entire symbol. As another example, data is not mapped on the last time-domain symbol, so the entire time-domain symbol can be used for transmit-receive conversion. As another example, data is mapped on the last time domain symbol, but data on the time domain symbol is not transmitted, similar to the case where the last time domain symbol in LTE-V2X is used for GP.

For example, for a subcarrier interval of 30 kHz, that is, the length of a time-domain symbol is about 33 us. If the processing time of the transmit-receive conversion operation is 13 us, the time length of the repeated waveform of the time-domain symbol in a time-domain period t should be greater than 13us, and the number K can be calculated as 2 (33us / 2 = 16.5us), or data is not mapped on the last time domain symbol, or data is mapped on the last time domain symbol, but the data on the symbol is not send.

For example, for a subcarrier interval of 60 kHz, that is, the length of a time-domain symbol is about 16 us. If the processing time of the transmit-receive conversion operation is 13 us, the time length of the repeated waveform of the time-domain symbol in a time-domain period t should be greater than 13us, so no data is mapped on the last time domain symbol, or data is mapped on the last time domain symbol, but the data on this symbol is not sent.

For example, for a subcarrier interval of 120kHz, that is, the length of a time-domain symbol is about 8us, if the processing time of the transmit-receive conversion operation is 13us, because the length of the entire time-domain symbol is less than 13us, the last two times No data is mapped on the domain symbol, or data is mapped on the last two time domain symbols, but the data on this symbol is not sent to ensure that the transmit-receive conversion operation has sufficient processing time.

It can be seen that in this example, if the resource unit of the last symbol can perform normal transmission and reception conversion operations, some resource units can be mapped to data to improve resource utilization. If the time of the last symbol cannot be guaranteed to perform transmission and reception For the conversion operation, at least one adjacent symbol is further configured to jointly guarantee the transmission and reception conversion operation and improve the stability of data transmission.

It can be seen that, in this example, because the resource mapping method specifically includes the resource mapping method for the first or last time domain symbol on the time unit, it is possible to flexibly configure the resource unit of the first or last time domain symbol The mapping relationship of the transmission data improves the flexibility and efficiency of the configuration resource mapping method.

Step 203: The first terminal receives the first lateral transmission channel.

The first lateral transmission channel includes any of the following: a physical lateral control channel PSCCH, a physical lateral shared channel PSSCH, a physical lateral broadcast channel PSBCH, or a physical lateral feedback channel.

It can be seen that, in the embodiment of the present invention, the first terminal first obtains the first configuration information, secondly, determines the resource mapping mode of the first side row transmission channel according to the first configuration information, and finally, receives the first side row according to the resource mapping mode. Transmission channel. Because the configuration information can configure resource mapping methods in different situations (such as different subcarrier intervals), the first terminal can use the spectrum resource mapping data more flexibly, avoiding that the first terminal cannot accurately adapt to multiple types using a fixed resource mapping method Scenarios occur, which is conducive to improving the flexibility of the system's configuration resource mapping and improving the utilization of spectrum resources.

In a possible example, the first configuration information includes first indication information, and the first indication information is used to indicate a resource mapping manner of the first lateral transmission channel.

In specific implementation, the first configuration information may be signaling or a message dedicated to indicating a resource mapping mode of the first lateral transmission channel, and may be specifically issued by a network device, or sent by another terminal, or specified by a protocol. There is no unique limitation.

For example, the protocol can pre-define data for each frequency-domain resource on the first time-domain symbol of the PSBCH, and no data on the last time-domain symbol.

As another example, the network sends first configuration information, which indicates that each frequency domain resource mapping data on the first time domain symbol of the PSCCH, and one data mapping on every 2 resource unit on the last time domain symbol. For example, the first configuration information includes the following information: X1 = 1, X2 = 2, where X1 = 1 represents the frequency domain resource mapping data on the first time domain symbol of the PSCCH; X2 = 2 represents the last time of the PSCCH One data is mapped for every 2 frequency domain resources on the domain symbol. Further, the protocol predefined data is mapped on even resource units.

It can be seen that, in this example, the first configuration information acquired by the first terminal may directly indicate the resource mapping mode of the first side-channel transmission channel, thereby improving the efficiency of configuring the resource mapping mode.

In a possible example, the first configuration information includes a first correspondence relationship, and the first correspondence relationship is a correspondence relationship between at least one basic parameter set and at least one resource mapping manner.

The basic parameter set includes at least one of the following: carrier information of the first lateral transmission channel, subcarrier spacing of the first lateral transmission channel, and a cyclic prefix length of the first lateral transmission channel. Or type, send and receive conversion time, automatic gain control adjustment time.

The carrier information includes carrier index information and / or carrier frequency information.

In a first example, the first correspondence relationship includes a correspondence relationship between a subcarrier interval size and a resource mapping manner. As shown in Table 1, X indicates that data to be transmitted is mapped on every X resource unit in a frequency domain resource on a certain time domain symbol of a time unit. The first terminal can determine the resource mapping mode of the last time domain symbol (that is, the GP symbol) according to the subcarrier interval of the first lateral transmission channel and Table 1.

Table 1

Subcarrier interval size (KHz)	Resource mapping mode (X)
15	4
30	2
60	Do not map data

In the second example, a table of resource mapping methods for pre-configuration or network configuration is shown in Table 2: where X = k (k = 1, 2, 4, 8) represents a time-domain symbol of a time unit. One data is mapped per X resource units in the frequency domain resource.

Table 2

Further, the network sends first configuration information to the first terminal, where the first configuration information includes a first correspondence relationship, and the first correspondence relationship includes a correspondence relationship between a subcarrier interval size and a resource mapping mode index, as shown in a table. 3 shows:

table 3

Subcarrier interval size (KHz)	Resource mapping mode index
15	2
30	1
60	4
120	5

The first terminal can determine the resource mapping mode of the last time-domain symbol (that is, the GP symbol) according to Table 2, Table 3, and the sub-carrier interval of the first lateral transmission channel. For example, if the subcarrier interval of the first-side horizontal transmission channel is 30 kHz, it can be determined according to Tables 3 and 2 that one data is mapped to every two resource units of the frequency-domain resources of the first-side horizontal transmission channel.

In a third example, the first correspondence includes a correspondence between a carrier frequency and a resource mapping manner. As shown in Table 4, X indicates that one resource to be transmitted is mapped to each X resource unit in a frequency domain resource on a certain time domain symbol of a time unit.

Table 4

Carrier frequency (GHz)	Resource mapping mode (X)
≤6	2
> 6	1

In the fourth example, the network configuration or pre-configuration table of a resource mapping mode is shown in Table 2 above. The first correspondence includes a correspondence between a carrier frequency and a resource mapping mode index, as shown in Table 5:

table 5

Carrier frequency (GHz)	Resource mapping mode index
≤6	1
> 6	0

The first terminal can determine the resource mapping mode of the first time-domain symbol (that is, the AGC symbol) according to Table 2, Table 5, and the carrier frequency of the first lateral transmission channel. For example, if the carrier frequency of the first lateral transmission channel is 5.9 GHz, it can be determined according to Table 5 and Table 2 that one data is mapped to every two resource units on the frequency domain resources of the first lateral transmission channel.

In a fifth example, the first correspondence includes a correspondence between a basic parameter set (a subcarrier interval size and a carrier frequency) and a resource mapping manner. As shown in Table 6, X indicates that one piece of data to be transmitted is mapped on every X resource unit in a frequency domain resource on a certain time domain symbol of a time unit.

Table 6

In a possible example, the determining, by the first terminal according to the first configuration information, a resource mapping manner of the first side-row transmission channel includes: the first terminal acquiring the first side-row transmission channel A first basic parameter set; and determining a resource mapping manner of the first lateral transmission channel according to the first basic parameter set and the first correspondence.

The first basic parameter set includes at least one of the following information: carrier information of the first side-row transmission channel, subcarrier interval of the first side-row transmission channel, and the first side-row transmission channel. Length or type of cyclic prefix, send and receive conversion time, automatic gain control adjustment time.

The carrier information includes carrier index information and / or carrier frequency information.

It can be seen that, in this example, the first terminal can query the first correspondence to obtain the corresponding resource mapping mode according to the first basic parameter set of the first lateral transmission channel. The query efficiency and accuracy are high, and the resource mapping mode configuration efficiency is improved. .

In a possible example, the acquiring, by the first terminal, a first basic parameter set of the first lateral transmission channel includes: the first terminal acquires pre-configured information; and acquires the first The first basic parameter set of a side-line transmission channel.

In a possible example, the pre-configuration information includes second indication information, and the second indication information is used to indicate a first basic parameter set of the first lateral transmission channel.

For example, the pre-configuration information may include a basic parameter set corresponding to a pre-configured lateral channel type, for example, the PSBCH uses a 15 kHz subcarrier interval.

In a possible example, the pre-configured information includes resource pool indication information or bandwidth part (BWP) indication information, wherein the first lateral transmission channel is transmitted in the resource pool or bandwidth part. The side terminal transmission channel; the first terminal acquiring the first basic parameter set of the first side channel transmission channel according to the pre-configured information includes: the first terminal according to the resource pool indication information or a bandwidth part The instruction information acquires a first basic parameter set of the first lateral transmission channel.

For example, the indication information indicates information such as the resource pool or the subcarrier interval used by the BWP.

It can be seen that, in this example, the first basic parameter set may be obtained from pre-configuration information, which may be exclusive indication information, or resource pool indication information, or bandwidth part indication information. The implementation methods are flexible and diverse, and the acquisition of the first basic parameter is improved. The flexibility of the parameter set.

In a possible example, the acquiring, by the first terminal, a first basic parameter set of the first lateral transmission channel includes: receiving, by the first terminal, second configuration information from a network device; and according to the second The configuration information acquires a first basic parameter set of the first lateral transmission channel.

It can be seen that in this example, the first terminal may specifically receive the second configuration information of the network device, and then obtain the first basic parameter set according to the second configuration information, that is, the first basic parameter set is instructed by the network side, which is efficient in real time.

It should be understood that if both the first configuration information and the second configuration information are from a network device, the first configuration information and the second configuration information may be the same configuration information.

In a possible example, the second configuration information includes third indication information, and the third indication information is used to indicate a first basic parameter set of the first side-line transmission channel.

In a possible example, the second configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part ; The first terminal acquiring the first basic parameter set of the first lateral transmission channel according to the second configuration information includes: acquiring, by the first terminal according to the resource pool instruction information or the bandwidth part instruction information The first basic parameter set of the first lateral transmission channel is described.

It can be seen that, in this example, since the second configuration information may be dedicated indication information, resource pool indication information, or bandwidth part indication information, the implementation methods are flexible and diverse, and the flexibility of obtaining the first basic parameter set is improved.

In a possible example, the acquiring, by the first terminal, a first basic parameter set of the first lateral transmission channel includes: the first terminal receiving a second lateral transmission channel, and the second lateral transmission The channel carries third configuration information; and a first basic parameter set of the first lateral transmission channel is acquired according to the third configuration information.

It can be seen that, in this example, the first terminal can receive the third configuration information of the second lateral transmission channel, determine the first basic parameter set, and both indicate the first basic parameter set through the second lateral transmission channel.

It should be understood that the first terminal receives the second lateral transmission channel to obtain the third configuration information, the first terminal receives the fourth lateral transmission channel to obtain the first configuration information, the second lateral transmission channel and the The fourth lateral transmission channel may come from the same terminal or different terminals. If the second lateral transmission channel and the fourth lateral transmission channel may come from the same terminal, the second lateral transmission channel It may be the same side transmission channel as the fourth side transmission channel.

In a possible example, the third configuration information includes fourth indication information, and the fourth indication information is used to indicate a basic parameter of the first lateral transmission channel.

In a possible example, the third configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part ; The first terminal obtaining the first basic parameter set of the first side row transmission channel according to the third configuration information includes: obtaining the first side row according to the resource pool instruction information or the bandwidth part instruction information. A first basic parameter set of a transmission channel.

It can be seen that, in this example, since the third configuration information may be exclusive indication information, resource pool indication information, or bandwidth part indication information, the implementation methods are flexible and diverse, and the flexibility of obtaining the first basic parameter set is improved.

In a possible example, the receiving, by the first terminal, a second lateral transmission channel includes: receiving, by the first terminal, a second lateral transmission channel sent by a second terminal, wherein the second terminal is a transmitting terminal. The terminal of the first lateral transmission channel is described; or, the second lateral transmission channel sent by the third terminal is received.

Wherein, in the case of sending by the second terminal, the second terminal is a group head and the first terminal is a group member, and the group head may send configuration information and resource pool indication information for the group members; in the case of sending by the third terminal, At this time, the third terminal is a group head, and the first and second terminals are members of the group.

It can be seen that, in this example, the second lateral transmission channel may be sent by a group terminal such as a second terminal or a third terminal, which improves the flexibility of transmitting the second lateral transmission channel.

In a possible example, the second side row transmission channel is a physical side row control channel PSCCH; or, the second side row transmission channel is a physical side row shared channel PSSCH. Alternatively, the second side-row transmission channel is a physical side-row broadcast channel PSBCH.

In a possible example, the first configuration information includes a second correspondence relationship, and the second correspondence relationship is a correspondence relationship between at least one index information and at least one resource mapping manner.

The index refers to an index of a resource mapping mode, as shown in Table 2.

In a possible example, the determining, by the first terminal according to the first configuration information, a resource mapping manner of the first side-row transmission channel includes: the first terminal acquiring the first side-row transmission channel First index information; determining a resource mapping mode of the first side-line transmission channel according to the second correspondence and the first index information.

In a possible example, the first index information is pre-configured, or the first index information is configured by a network.

For example, the index of the resource mapping mode of the GP symbol of the pre-configured PSBCH is index 1. The first terminal can obtain the index of the resource mapping mode of the PSBCH according to the pre-configured information, and combine the second correspondence relationship, that is, the resource mapping mode index and Correspondence between resource mapping modes can determine the resource mapping mode of the GP symbol of the PSBCH.

In a possible example, the acquiring, by the first terminal, first index information of the first lateral transmission channel includes: the first terminal receives a third lateral transmission channel, and the third lateral transmission channel Carry the first index information; and acquire the first index information according to the third lateral transmission channel.

In a possible example, the receiving, by the first terminal, a third lateral transmission channel includes: receiving, by the first terminal, a third lateral transmission channel sent by a second terminal, wherein the second terminal is a transmitting terminal. The terminal of the first lateral transmission channel is described; or, the third lateral transmission channel sent by the fourth terminal is received.

Wherein, in the case of sending by the second terminal, the second terminal is a group head, and the first terminal is a group member, and the group head may send configuration information and resource pool indication information for the group members. At this time, the third terminal is a group head, and the first and second terminals are members of the group.

In a possible example, the third side row transmission channel is a physical side row control channel PSCCH; or, the third side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first configuration information is pre-configured or network-configured.

In a possible example, obtaining the first configuration information by the first terminal includes: receiving, by the first terminal, a fourth lateral transmission channel, where the fourth lateral transmission channel carries the first configuration information; Acquiring, by the fourth lateral transmission channel, the first configuration information.

In a possible example, the fourth side row transmission channel is a physical side row control channel PSCCH; or, the fourth side row transmission channel is a physical side row shared channel PSSCH.

It can be seen that in this example, the first terminal can obtain the first configuration information by receiving the fourth lateral transmission channel. Since the fourth lateral transmission channel can be flexibly configured by other terminals or network devices, the first configuration information can be improved. Configuration flexibility.

In a possible example, the first side row transmission channel includes any of the following: a physical side row control channel PSCCH, a physical side row shared channel PSSCH, a physical side row broadcast channel PSBCH, a physical side row discovery channel PSDCH, a physical Side line feedback channel.

Consistent with the embodiment shown in FIG. 2A above, please refer to FIG. 3. FIG. 3 is a schematic structural diagram of a terminal 300 (the first terminal as described above) according to an embodiment of the present invention. The terminal 300 includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321. The one or more programs 321 are stored in the memory 320 and configured to be executed by the processor 310. Said one or more programs 321 include instructions for performing the following steps;

Obtaining first configuration information;

Determining a resource mapping mode of the first lateral transmission channel according to the first configuration information;

Receiving the first lateral transmission channel according to the resource mapping manner.

It can be seen that, in the embodiment of the present invention, the first terminal first obtains the first configuration information, secondly, determines the resource mapping mode of the first side row transmission channel according to the first configuration information, and finally, receives the first side row according to the resource mapping mode. Transmission channel. Because the configuration information can configure resource mapping methods in different situations (such as different subcarrier intervals), the first terminal can use the spectrum resource mapping data more flexibly, avoiding that the first terminal cannot accurately adapt to multiple types using a fixed resource mapping method Scenarios occur, which is conducive to improving the flexibility of the system's configuration resource mapping and improving the utilization of spectrum resources.

In a possible example, the first configuration information includes first indication information, and the first indication information is used to indicate a resource mapping manner of the first lateral transmission channel.

In a possible example, the first configuration information includes a first correspondence relationship, and the first correspondence relationship is a correspondence relationship between at least one basic parameter set and at least one resource mapping manner.

In a possible example, in terms of determining a resource mapping manner of the first lateral transmission channel according to the first configuration information, the instructions in the program are specifically used to perform the following operations: obtaining the first A first basic parameter set of a lateral transmission channel; and determining a resource mapping manner of the first lateral transmission channel according to the first basic parameter set and the first correspondence.

In a possible example, the first basic parameter set includes at least one of the following information:

Carrier information of the first lateral transmission channel, subcarrier interval of the first lateral transmission channel, cyclic prefix length or type of the first lateral transmission channel, transmission / reception conversion time, automatic gain control adjustment time .

The carrier information includes carrier index information and / or carrier frequency information.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel, the instructions in the program are specifically used to perform the following operations: acquiring pre-configured information; and according to the pre-configuration The configuration information acquires a first basic parameter set of the first lateral transmission channel.

In a possible example, the pre-configuration information includes second indication information, and the second indication information is used to indicate a first basic parameter set of the first lateral transmission channel.

In a possible example, the pre-configured information includes resource pool indication information or bandwidth part indication information, wherein the first lateral transmission channel is a lateral transmission channel transmitted in the resource pool or bandwidth part; With regard to the acquiring the first basic parameter set of the first lateral transmission channel according to the pre-configured information, the instructions in the program are specifically configured to perform the following operations: according to the resource pool instruction information or a bandwidth part instruction The information acquires a first basic parameter set of the first lateral transmission channel.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel, the instructions in the program are specifically used to perform the following operations: receiving second configuration information from a network device; And acquiring a first basic parameter set of the first lateral transmission channel according to the second configuration information.

In a possible example, the second configuration information includes third indication information, and the third indication information is used to indicate a first basic parameter set of the first side-line transmission channel.

In a possible example, the second configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part In terms of acquiring the first basic parameter set of the first lateral transmission channel according to the second configuration information, the instructions in the program are specifically used to perform the following operations: according to the resource pool instruction information or bandwidth The partial instruction information acquires a first basic parameter set of the first lateral transmission channel.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel, the instructions in the program are specifically configured to perform the following operations: receiving a second lateral transmission channel, and The second lateral transmission channel carries third configuration information; and a first basic parameter set of the first lateral transmission channel is acquired according to the third configuration information.

In a possible example, the third configuration information includes fourth indication information, and the fourth indication information is used to indicate a basic parameter of the first lateral transmission channel.

In a possible example, the third configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part In terms of acquiring the first basic parameter set of the first lateral transmission channel according to the third configuration information, the instructions in the program are specifically used to perform the following operations: according to the resource pool instruction information or bandwidth The partial instruction information acquires a first basic parameter set of the first lateral transmission channel.

In a possible example, in terms of receiving the second lateral transmission channel, the instructions in the program are specifically configured to perform the following operations: receiving a second lateral transmission channel sent by a second terminal, wherein the first The second terminal is a terminal that sends the first lateral transmission channel; or receives a second lateral transmission channel sent by a third terminal.

In a possible example, the second side row transmission channel is a physical side row control channel PSCCH; or, the second side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first configuration information includes a second correspondence relationship, and the second correspondence relationship is a correspondence relationship between at least one index information and at least one resource mapping manner.

In a possible example, in terms of determining a resource mapping manner of the first lateral transmission channel according to the first configuration information, the instructions in the program are specifically used to perform the following operations: obtaining the first First index information of a side-by-side transmission channel; and determining a resource mapping manner of the first side-by-side transmission channel according to the second correspondence and the first index information.

In a possible example, the first index information is pre-configured, or the first index information is configured by a network.

In a possible example, in terms of acquiring the first index information of the first lateral transmission channel, the instructions in the program are specifically configured to perform the following operations: receiving a third lateral transmission channel, and the first The three-side row transmission channel carries the first index information; and the first index information is obtained according to the third side row transmission channel.

In a possible example, in terms of receiving the third-side horizontal transmission channel, the instructions in the program are specifically configured to perform the following operations: receiving a third-side horizontal transmission channel sent by a second terminal, where the first The second terminal is a terminal that sends the first lateral transmission channel; or receives a third lateral transmission channel sent by the fourth terminal.

In a possible example, the third side row transmission channel is a physical side row control channel PSCCH; or, the third side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first configuration information is pre-configured or network-configured.

In a possible example, in terms of obtaining the first configuration information, the instructions in the program are specifically configured to perform the following operations: receiving a fourth lateral transmission channel, where the fourth lateral transmission channel carries the first A configuration information; and acquiring the first configuration information according to the fourth lateral transmission channel.

In a possible example, the fourth side row transmission channel is a physical side row control channel PSCCH; or, the fourth side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first side row transmission channel includes any of the following: a physical side row control channel PSCCH, a physical side row shared channel PSSCH, a physical side row broadcast channel PSBCH, a physical side row discovery channel PSDCH, a physical Side line feedback channel.

In a possible example, the resource mapping manner includes a first resource mapping manner and / or a second resource mapping manner, wherein the first resource mapping manner is applicable to a first time domain symbol of a time unit, and The two resource mapping method is applicable to the last time domain symbol of a time unit.

In a possible example, the resource mapping mode of the first lateral transmission channel includes at least one of the following: the first time-domain symbol does not map data, and one data is mapped per K resource units on the first time-domain symbol, where , The first time-domain symbol is a time-domain symbol in a time unit where the first side-row transmission channel is located, and the resource unit on the first time-domain symbol is within a frequency domain range of the first side-row transmission channel K is a positive integer.

The above mainly introduces the solution of the embodiment of the present invention from the perspective of interaction between various network elements. It can be understood that, in order to realize the above functions, the terminal and the network-side device include a hardware structure and / or a software module corresponding to each function. Those skilled in the art should easily realize that the present invention can be implemented in the form of hardware or a combination of hardware and computer software by combining the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation should not be considered outside the scope of the present invention.

In the embodiment of the present invention, functional units may be divided between the terminal and the network-side device according to the foregoing method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above integrated unit may be implemented in the form of hardware or in the form of software program modules. It should be noted that the division of the units in the embodiment of the present invention is schematic, and is only a logical function division. In actual implementation, there may be another division manner.

In the case of using integrated units, FIG. 4 shows a possible block diagram of a functional unit of a terminal (also referred to as a first terminal) involved in the above embodiment. The terminal 400 includes a processing unit 402 and a communication unit 403. The processing unit 402 is used to control and manage the actions of the terminal. For example, the processing unit 402 is used to support the terminal to perform steps 201-203 in FIG. 2A and / or other processes for the technology described herein. The communication unit 403 is configured to support communication between the terminal and other devices. The terminal may further include a storage unit 401 for storing program code and data of the terminal.

The processing unit 402 may be a processor or a controller, for example, it may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processor may also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication unit 403 may be a communication interface, a transceiver, a transceiver circuit, and the like, and the storage unit 401 may be a memory.

Wherein, the processing unit 402 is configured to obtain first configuration information through the communication unit 403; and determine a resource mapping mode of the first lateral transmission channel according to the first configuration information; and according to the communication unit 403, The resource mapping method receives the first lateral transmission channel.

In a possible example, the first configuration information includes first indication information, and the first indication information is used to indicate a resource mapping manner of the first lateral transmission channel.

In a possible example, the first configuration information includes a first correspondence relationship, and the first correspondence relationship is a correspondence relationship between at least one basic parameter set and at least one resource mapping manner.

In a possible example, in terms of determining a resource mapping manner of the first lateral transmission channel according to the first configuration information, the processing unit 402 is specifically configured to: obtain the first lateral transmission channel A first basic parameter set; and determining a resource mapping manner of the first lateral transmission channel according to the first basic parameter set and the first correspondence.

In a possible example, the first basic parameter set includes at least one of the following information:

Carrier information of the first lateral transmission channel, subcarrier interval of the first lateral transmission channel, cyclic prefix length or type of the first lateral transmission channel, transmission / reception conversion time, automatic gain control adjustment time .

The carrier information includes carrier index information and / or carrier frequency information.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel, the processing unit 402 is specifically configured to: obtain pre-configured information; and obtain an IP address according to the pre-configured information. The first basic parameter set of the first lateral transmission channel is described.

In a possible example, the pre-configuration information includes second indication information, and the second indication information is used to indicate a first basic parameter set of the first lateral transmission channel.

In a possible example, the pre-configured information includes resource pool indication information or bandwidth part indication information, wherein the first lateral transmission channel is a lateral transmission channel transmitted in the resource pool or bandwidth part; In terms of acquiring the first basic parameter set of the first lateral transmission channel according to the pre-configured information, the processing unit 402 is specifically configured to: acquire the according to the resource pool instruction information or the bandwidth part instruction information. The first basic parameter set of the first row of transmission channels.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel through the communication unit 403, the processing unit 402 is specifically configured to: Second configuration information of a network device; and acquiring a first basic parameter set of the first side-line transmission channel according to the second configuration information.

In a possible example, the second configuration information includes third indication information, and the third indication information is used to indicate a first basic parameter set of the first side-line transmission channel.

In a possible example, the second configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part In terms of acquiring the first basic parameter set of the first lateral transmission channel according to the second configuration information, the processing unit 402 is specifically configured to acquire according to the resource pool instruction information or the bandwidth part instruction information A first basic parameter set of the first lateral transmission channel.

In a possible example, in terms of acquiring the first basic parameter set of the first lateral transmission channel through the communication unit 403, the processing unit 402 is specifically configured to: receive the first basic parameter set through the communication unit 403. A two-side row transmission channel, the second side-row transmission channel carrying third configuration information; and acquiring a first basic parameter set of the first side-row transmission channel according to the third configuration information.

In a possible example, the third configuration information includes fourth indication information, and the fourth indication information is used to indicate a basic parameter of the first lateral transmission channel.

In a possible example, the third configuration information includes resource pool indication information or bandwidth part indication information, wherein the first side transport channel is a side transport channel transmitted in the resource pool or bandwidth part In the aspect of acquiring the first basic parameter set of the first lateral transmission channel according to the third configuration information, the processing unit 402 is specifically configured to acquire according to the resource pool instruction information or the bandwidth part instruction information A first basic parameter set of the first lateral transmission channel.

In a possible example, in terms of receiving the second side line transmission channel through the communication unit 403, the processing unit 402 is specifically configured to receive the second side line sent by the second terminal through the communication unit 403 A transmission channel, wherein the second terminal is a terminal that sends the first side-line transmission channel; or, the communication unit 403 receives a second side-line transmission channel sent by a third terminal.

In a possible example, the second side row transmission channel is a physical side row control channel PSCCH; or, the second side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first configuration information includes a second correspondence relationship, and the second correspondence relationship is a correspondence relationship between at least one index information and at least one resource mapping manner.

In a possible example, in terms of determining a resource mapping manner of the first lateral transmission channel according to the first configuration information, the processing unit 402 is specifically configured to: obtain the first lateral transmission channel And determining a resource mapping manner of the first lateral transmission channel according to the second correspondence and the first index information.

In a possible example, the first index information is pre-configured, or the first index information is configured by a network.

In a possible example, in terms of acquiring the first index information of the first side-by-side transmission channel through the communication unit 403, the processing unit 402 is specifically configured to: receive a third through the communication unit 403 A lateral transmission channel, the third lateral transmission channel carrying the first index information; and acquiring the first index information according to the third lateral transmission channel.

In a possible example, in terms of receiving the third-side row transmission channel through the communication unit 403, the processing unit 402 is specifically configured to: receive the third-side row sent by the second terminal through the communication unit 403 A transmission channel, wherein the second terminal is a terminal that sends the first side-row transmission channel; or, the communication unit 403 receives a third side-row transmission channel sent by a fourth terminal.

In a possible example, the third side row transmission channel is a physical side row control channel PSCCH; or, the third side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first configuration information is pre-configured or network-configured.

In a possible example, in terms of acquiring the first configuration information through the communication unit 403, the processing unit 402 is specifically configured to receive a fourth lateral transmission channel through the communication unit 403, and the fourth A lateral transmission channel carries the first configuration information; and acquires the first configuration information according to the fourth lateral transmission channel.

In a possible example, the fourth side row transmission channel is a physical side row control channel PSCCH; or, the fourth side row transmission channel is a physical side row shared channel PSSCH.

In a possible example, the first side row transmission channel includes any of the following: a physical side row control channel PSCCH, a physical side row shared channel PSSCH, a physical side row broadcast channel PSBCH, a physical side row discovery channel PSDCH, a physical Side line feedback channel.

In a possible example, the resource mapping manner includes a first resource mapping manner and / or a second resource mapping manner, wherein the first resource mapping manner is applicable to a first time domain symbol of a time unit, and The two resource mapping method is applicable to the last time domain symbol of a time unit.

In a possible example, the resource mapping mode of the first lateral transmission channel includes at least one of the following: the first time-domain symbol does not map data, and one data is mapped per K resource units on the first time-domain symbol, where , The first time-domain symbol is a time-domain symbol in a time unit where the first side-row transmission channel is located, and the resource unit on the first time-domain symbol is within a frequency domain range of the first side-row transmission channel K is a positive integer.

An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute a terminal as in the foregoing method embodiment. Some or all of the steps described.

An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, and the computer program causes a computer to execute a network as in the foregoing method embodiment. Part or all of the steps described by the side device.

An embodiment of the present invention also provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiment as described above. Some or all of the steps described in the terminal. The computer program product can be a software installation package.

The steps of the method or algorithm described in the embodiments of the present invention may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions. Software instructions can be composed of corresponding software modules. Software modules can be stored in Random Access Memory (RAM), flash memory, Read Only Memory (ROM), erasable programmable read-only memory (ROM Erasable (Programmable ROM, EPROM), electrically erasable programmable read-only memory (EPROM), registers, hard disks, removable hard disks, read-only optical disks (CD-ROMs), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art should be aware that, in one or more of the above examples, the functions described in the embodiments of the present invention may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present invention are wholly or partially generated. 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 from a website site, computer, server, or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (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, a data center, and the like that includes one or more available medium integration. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) )Wait.

The specific implementation manners described above further describe the objectives, technical solutions, and beneficial effects of the embodiments of the present invention in detail. It should be understood that the foregoing are only specific implementation manners of the embodiments of the present invention, and are not used for The protection scope of the embodiments of the present invention is limited. Any modification, equivalent replacement, or improvement based on the technical solution of the embodiments of the present invention shall be included in the protection scope of the embodiments of the present invention.

Claims (31)

1. A resource mapping mode indication method, which is applied to a first terminal, and the method includes:

   Obtaining first configuration information;

   Determining a resource mapping mode of the first lateral transmission channel according to the first configuration information;

   Receiving the first lateral transmission channel according to the resource mapping manner.
2. The method according to claim 1, wherein the first configuration information includes first indication information, and the first indication information is used to indicate a resource mapping manner of the first side-by-side transmission channel.
3. The method according to claim 1, wherein the first configuration information includes a first correspondence relationship, and the first correspondence relationship is a correspondence relationship between at least one basic parameter set and at least one resource mapping mode.
4. The method according to claim 3, wherein the determining a resource mapping mode of the first lateral transmission channel according to the first configuration information comprises:

   Acquiring a first basic parameter set of the first lateral transmission channel;

   Determining a resource mapping manner of the first lateral transmission channel according to the first basic parameter set and the first correspondence relationship.
5. The method according to claim 4, wherein the first basic parameter set includes at least one of the following information:

   Carrier information of the first lateral transmission channel, subcarrier interval of the first lateral transmission channel, cyclic prefix length or type of the first lateral transmission channel, transmission / reception conversion time, automatic gain control adjustment time .
6. The method according to claim 4 or 5, wherein the acquiring a first basic parameter set of the first lateral transmission channel comprises:

   Get pre-configured information;

   Acquiring a first basic parameter set of the first lateral transmission channel according to the pre-configuration information.
7. The method according to claim 6, wherein the pre-configuration information includes second indication information, and the second indication information is used to indicate a first basic parameter set of the first lateral transmission channel.
8. The method according to claim 6, wherein the pre-configured information comprises resource pool indication information or bandwidth part indication information, and wherein the first lateral transmission channel is transmitted in the resource pool or bandwidth part A lateral transmission channel; acquiring the first basic parameter set of the first lateral transmission channel according to the pre-configured information includes:

   And acquiring a first basic parameter set of the first lateral transmission channel according to the resource pool instruction information or the bandwidth part instruction information.
9. The method according to claim 4 or 5, wherein the acquiring a first basic parameter set of the first lateral transmission channel comprises:

   Receiving second configuration information from a network device;

   Acquiring a first basic parameter set of the first lateral transmission channel according to the second configuration information.
10. The method according to claim 9, wherein the second configuration information includes third indication information, and the third indication information is used to indicate a first basic parameter set of the first side-line transmission channel.
11. The method according to claim 9, wherein the second configuration information comprises resource pool indication information or bandwidth part indication information, and wherein the first lateral transmission channel is in the resource pool or bandwidth part A transmission side transmission channel; and acquiring the first basic parameter set of the first side transmission channel according to the second configuration information includes:

    And acquiring a first basic parameter set of the first lateral transmission channel according to the resource pool instruction information or the bandwidth part instruction information.
12. The method according to claim 4 or 5, wherein the acquiring a first basic parameter set of the first lateral transmission channel comprises:

    Receiving a second lateral transmission channel, where the second lateral transmission channel carries third configuration information;

    Acquiring a first basic parameter set of the first lateral transmission channel according to the third configuration information.
13. The method according to claim 12, wherein the third configuration information includes fourth indication information, and the fourth indication information is used to indicate a basic parameter of the first lateral transmission channel.
14. The method according to claim 12, wherein the third configuration information comprises resource pool indication information or bandwidth part indication information, and wherein the first lateral transmission channel is in the resource pool or bandwidth part A transmission side transmission channel; and acquiring the first basic parameter set of the first side transmission channel according to the third configuration information includes:

    And acquiring a first basic parameter set of the first lateral transmission channel according to the resource pool instruction information or the bandwidth part instruction information.
15. The method according to any one of claims 12 to 14, wherein the receiving a second lateral transmission channel comprises:

    Receiving a second lateral transmission channel sent by a second terminal, wherein the second terminal is a terminal transmitting the first lateral transmission channel; or,

    Receiving a second lateral transmission channel sent by a third terminal.
16. The method according to any one of claims 12 to 15, wherein the second lateral transmission channel is a physical lateral control channel PSCCH; or the second lateral transmission channel is a physical lateral shared channel PSSCH.
17. The method according to claim 1, wherein the first configuration information includes a second correspondence relationship, and the second correspondence relationship is a correspondence relationship between at least one index information and at least one resource mapping mode.
18. The method according to claim 17, wherein the determining a resource mapping mode of the first lateral transmission channel according to the first configuration information comprises:

    Acquiring first index information of the first lateral transmission channel;

    Determining a resource mapping manner of the first side-line transmission channel according to the second correspondence relationship and the first index information.
19. The method according to claim 18, wherein the first index information is pre-configured, or the first index information is network-configured.
20. The method according to claim 18, wherein the acquiring the first index information of the first lateral transmission channel comprises:

    Receiving a third lateral transmission channel, where the third lateral transmission channel carries the first index information;

    Acquiring the first index information according to the third lateral transmission channel.
21. The method according to claim 20, wherein the receiving a third-side transmission channel comprises:

    Receiving a third lateral transmission channel sent by a second terminal, wherein the second terminal is a terminal transmitting the first lateral transmission channel; or

    Receiving a third side-line transmission channel sent by a fourth terminal.
22. The method according to claim 20 or 21, wherein the third side row transmission channel is a physical side row control channel PSCCH; or the third side row transmission channel is a physical side row shared channel PSSCH.
23. The method according to any one of claims 1 to 22, wherein the first configuration information is pre-configured or configured by a network.
24. The method according to any one of claims 1 to 22, wherein the acquiring the first configuration information comprises:

    Receiving a fourth lateral transmission channel, where the fourth lateral transmission channel carries the first configuration information;

    Acquiring the first configuration information according to the fourth lateral transmission channel.
25. The method according to claim 24, wherein the fourth-side row transmission channel is a physical-side row control channel PSCCH; or the fourth-side row transmission channel is a physical-side row shared channel PSSCH.
26. The method according to any one of claims 1 to 25, wherein the first side row transmission channel comprises any one of the following: a physical side row control channel PSCCH, a physical side row shared channel PSSCH, and a physical side row broadcast Channel PSBCH, physical side row discovery channel PSDCH, physical side row feedback channel.
27. The method according to any one of claims 1 to 26, wherein the resource mapping manner comprises a first resource mapping manner and / or a second resource mapping manner, wherein the first resource mapping manner is applicable to one The first time domain symbol of the time unit and the second resource mapping method are applicable to the last time domain symbol of a time unit.
28. The method according to any one of claims 1 to 27, wherein the resource mapping mode of the first side-line transmission channel comprises at least one of the following: the first time-domain symbol does not map data, and the first time-domain symbol One data is mapped per K resource units on the network, where the first time domain symbol is a time domain symbol in a time unit in which the first lateral transmission channel is located, and the resource unit on the first time domain symbol is in the The resource units in the frequency domain of the first row of transmission channels, where K is a positive integer.
29. A terminal, wherein the terminal is a first terminal, and the first terminal includes a processing unit and a communication unit,

    The processing unit is configured to obtain first configuration information through the communication unit; and determine a resource mapping manner of a first side-channel transmission channel according to the first configuration information; and according to the resource mapping manner through the communication unit Receiving the first lateral transmission channel.
30. A terminal, characterized in that the terminal is a first terminal and includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and configured. Executed by the processor, the program includes instructions for performing the steps in the method according to any one of claims 1-28.
31. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-28.

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