WO2022077382A1

WO2022077382A1 - Channel transmission method, configuration method, and device

Info

Publication number: WO2022077382A1
Application number: PCT/CN2020/121284
Authority: WO
Inventors: 赵振山; 卢前溪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2022-04-21
Also published as: CN116097844A

Abstract

Disclosed is a channel transmission method. The method comprises: according to the number of time-domain symbols for a sidelink in one time slot, a first device determining whether to transmit a physical sidelink feedback channel (PSFCH) within the time slot. Further disclosed are a configuration method, a device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

Description

A channel transmission method, configuration method and device

technical field

The present application relates to the field of communications, and in particular, to a channel transmission method, a configuration method, a device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

Background technique

For New Radio-Vehicle to Everything (NR-V2X), the time-domain symbols used for sidelink transmission include those used to transmit the Physical Sidelink Share Channel (PSSCH) Time-domain symbols, Automatic Gain Control (AGC) time-domain symbols, Guard Period (GP) time-domain symbols, and time-domain symbols for transmitting Physical Sidelink Feedback Channel (PSFCH) . Therefore, how to allocate the time domain symbols in the time slot reasonably and effectively is the goal that has been pursued all the time.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the embodiments of the present application provide a channel transmission method, a configuration method, a device, a chip, a computer-readable storage medium, a computer program product, and a computer program, which can reasonably and effectively allocate the time domain in the time slot. symbol.

In a first aspect, an embodiment of the present application provides a channel transmission method, including: a first device determines whether to transmit a PSFCH in a time slot according to the number of time domain symbols used for the sidelink in the time slot.

In a second aspect, an embodiment of the present application provides a channel configuration method, including: a second device sending first configuration information, where the first configuration information is used to configure a time domain symbol used for a sidelink in a time slot The number of is less than the first threshold; when the number of the time-domain symbols is less than the first threshold, the transmission of the PSFCH in the time slot is prohibited.

In a third aspect, an embodiment of the present application provides a channel configuration method, including: a first device acquiring second configuration information, where the second configuration information is used to configure a second threshold, and the second threshold is used to represent a time The minimum number of time-domain symbols used to transmit the PSSCH in a slot.

In a fourth aspect, an embodiment of the present application provides a channel configuration method, the method includes: a second device sends second configuration information, where the second configuration information is used to configure a second threshold, and the second threshold is used for Indicates the minimum number of time-domain symbols used to transmit PSSCH in one slot.

In a fifth aspect, an embodiment of the present application provides a first device, where the first device includes:

The first processing unit is configured to determine whether to transmit the PSFCH in the time slot according to the number of time domain symbols used for the sidelink in the time slot.

In a sixth aspect, an embodiment of the present application provides a second device, where the second device includes: a first sending unit configured to send first configuration information, where the first configuration information is used to configure a time slot to use The number of time-domain symbols on the sidelink is less than the first threshold; when the number of time-domain symbols is less than the first threshold, the transmission of the PSFCH in the time slot is prohibited.

In a seventh aspect, an embodiment of the present application provides a first device, where the first device includes: a second processing unit configured to acquire second configuration information, where the second configuration information is used to configure a second threshold, so The second threshold is used to represent the minimum value of the number of time-domain symbols used for PSSCH transmission in one time slot.

In an eighth aspect, an embodiment of the present application provides a second device, where the second device includes:

A second sending unit, configured to send second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum value of the number of time-domain symbols used for PSSCH transmission in one time slot .

In a ninth aspect, a first device is provided, comprising: a processor and a memory for storing a computer program that can be executed on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps performed by the first device.

In a tenth aspect, a second device is provided, comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps performed by the second device.

In an eleventh aspect, a chip is provided, including: a processor for calling and running a computer program from a memory, so that a device on which the chip is installed executes the steps performed by the above-mentioned first device.

A twelfth aspect provides a chip, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is installed executes the steps performed by the second device.

In a thirteenth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium is used to store a computer program, and the computer program causes a computer to perform the steps performed by the above-mentioned first device.

In a fourteenth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium is used to store a computer program, and the computer program causes a computer to perform the steps performed by the second device.

In a fifteenth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the steps performed by the above-mentioned first device.

In a sixteenth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the steps performed by the above-mentioned second device.

In a seventeenth aspect, a computer program is provided, the computer program causing a computer to perform the steps performed by the above-mentioned first device.

In an eighteenth aspect, a computer program is provided, the computer program causing a computer to perform the steps performed by the above-mentioned second device.

In the embodiment of the present application, the first device determines whether to transmit the PSFCH in a time slot according to the number of time domain symbols used for the sidelink in the time slot. If the number of time-domain symbols used for the sidelink in a time slot is less than the first threshold, the PSFCH is not transmitted, that is, the transmission of the sideline feedback transmission channel is not supported. In this way, a time slot can be allocated reasonably and effectively. so that when the number of time-domain symbols used for PSSCH transmission is less than 6, the existing DMRS pattern in the related art can still be used.

Description of drawings

1-1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

Figure 1-2 to Figure 1-7 are schematic diagrams of the composition scene of D2D and V2X;

Figures 1-8 to 1-10 are schematic diagrams of several DMRS patterns;

FIG. 2 is a schematic diagram of an optional processing flow of a channel transmission method provided by an embodiment of the present application;

3 is a schematic diagram of a time domain symbol in a time slot provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of an optional processing flow of the channel configuration method provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of another optional processing flow of the channel configuration method provided by the embodiment of the present application;

FIG. 6 is a schematic schematic diagram of another optional processing flow of the channel configuration method provided by the embodiment of the present application;

FIG. 7 is a schematic diagram of an optional composition structure of the first device provided by the embodiment of the present application;

FIG. 8 is a schematic diagram of an optional composition structure of a second device provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of another optional composition structure of the first device provided by the embodiment of the present application;

10 is a schematic diagram of another optional composition structure of the second device provided by the embodiment of the present application;

FIG. 11 is a schematic structural diagram of the composition of a communication device according to an embodiment of the application;

FIG. 12 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed ways

In order to have a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 to which the embodiments of the present application are applied may be as shown in FIG. 1-1 . The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with the UE 120 (or referred to as a communication terminal device, a terminal device). The network device 110 may provide communication coverage for a particular geographic area and may communicate with UEs located within the coverage area. Optionally, the network device 110 may be a network device (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a network device (NodeB, NB) in a WCDMA system, or an evolution in an LTE system. type network equipment (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network equipment can be a mobile switching center, relay station, access point, Vehicle-mounted devices, wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one UE 120 located within the coverage of the network device 110 . "UE" as used herein includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections; and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or another UE's apparatus configured to receive/transmit communication signals; and/or an Internet of Things (IoT) device. A UE arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal device", a "wireless terminal device" or a "mobile terminal device".

Optionally, device-to-device (Device to Device, D2D) communication may be performed between the UEs 120 .

D2D communication is a sidelink (SideLink, SL)-based transmission technology. Different from the traditional cellular system in which communication data is received or sent through a base station, D2D communication adopts terminal-to-terminal direct communication. In the Third Generation Partnership Project (3GPP), D2D communication is studied through different stages; NR-V2X is a stage of D2D communication research.

Two sideline transmission modes are defined in 3GPP, mode A and mode B, respectively. in,

For mode A: As shown in Figure 1-2, the transmission resources of the terminal device are allocated by the network device, and the terminal device sends data on the side link according to the resources allocated by the network device; the network device can allocate a single resources for secondary transmission, and resources for semi-static transmission can also be allocated to terminal devices.

For mode B: As shown in Figure 1-3, the vehicle terminal selects a resource in the resource pool for data transmission.

The following is a brief description of NR-V2X and LTE-V2X. In NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, More flexible resource allocation, etc.

In LTE-V2X, broadcast transmission, unicast transmission and multicast transmission are supported. For the unicast transmission mode, as shown in Figure 1-4, there is only one terminal device at the receiving end, and unicast transmission is performed between UE1 and UE2. For multicast transmission, the receiver is all terminal devices in a communication group, or all terminal devices within a certain transmission distance. For the multicast transmission mode, as shown in Figure 1-5, UE1, UE2, UE3 and UE4 form a communication group, where UE1 is the terminal device on the sender side and is used to send data. UE2, UE3 and UE4 in the group are all The terminal device at the receiving end is used to receive data. For the broadcast transmission mode, the receiver can be any terminal device. As shown in Figure 1-6, UE1 is the terminal device of the sender, which is used to send data. Other terminal devices around UE1, such as UE2, UE3, UE4, UE5, Both UE6 and UE7 are terminal devices at the receiving end, which are used to receive data.

For NR-V2X, there are two resource allocation methods, mode 1 and mode 2. In mode 2, the terminal autonomously selects transmission resources in the resource pool for sideline transmission, that is, the above-mentioned transmission mode B. In mode 1, the network device allocates sideline transmission resources to the terminal device, that is, the above-mentioned transmission mode A; specifically, the network device may allocate sideline transmission resources to the terminal device by means of dynamic scheduling; or the network device may Allocate sideline configuration grant (CG) transmission resources to terminal devices. For the resource allocation method in which the network device allocates the sideline CG to the terminal device, it mainly includes two configuration authorization methods: the first type of configuration authorization (type-1 configured grant) and the second type of configuration authorization (type-2 configured grant). :

The first type of configuration authorization: the network device configures sideline transmission resources for the terminal device through Radio Resource Control (RRC) signaling. The RRC signaling configuration includes time domain resources, frequency domain resources, DMRS, modulation and coding methods ( All transmission resources and transmission parameters including Modulation and Coding Scheme, MCS). When the terminal device receives the high-layer parameters, it can immediately use the configured transmission parameters to perform lateral transmission on the configured time-frequency resources.

The second type of configuration authorization: a two-step resource configuration method is adopted, that is, the network device allocates resources through RRC signaling and downlink control information (Downlink Control Information, DCI). First, the period including time-frequency resources is configured by RRC signaling. , redundancy version, number of retransmissions, number of Hybrid Automatic Repeat reQuest (HARQ) processes and other transmission resources and transmission parameters, and then the DCI activates the transmission authorized by the second type of configuration, and configures the configuration including Other transmission resources and transmission parameters including time domain resources, frequency domain resources, MCS, etc. When the terminal device receives the RRC signaling, it cannot immediately use the resources and parameters configured by the high-level parameters for sideline transmission, but must wait for the corresponding DCI activation and configure other resources and transmission parameters before performing sideline transmission. In addition, the network device can deactivate the configuration transmission through DCI, and after the terminal device receives the deactivated DCI, it can no longer use the transmission resource for sideline transmission.

If the network device allocates the configuration authorized transmission resource to the terminal device, when the terminal device has sideline data to transmit, the terminal device can directly use the transmission resource for transmission without sending a Scheduling Request (SR) to the network device. )/Buffer Status Report (BSR) to request transmission resources, thereby reducing latency.

In NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, More flexible resource allocation, etc. In the NR-V2X system, a variety of transmission modes are introduced, such as mode 1 and mode 2; among them, mode 1 is that the network equipment allocates transmission resources for the terminal equipment (that is, the above-mentioned transmission mode A), and mode 2 is that the terminal equipment selects transmission resources ( That is, the above-mentioned transmission mode B).

In NR-V2X, in order to improve transmission reliability, a feedback channel is introduced on the sidelink, as shown in Figure 1-7, where UE1 and UE2 form a unicast link, and UE1 sends sidelink data to UE2. UE2 sends sideline feedback information, ie ACK or NACK, to UE1 according to the detection result of the received sideline data. UE1 receives the feedback information from UE2, and decides whether to send retransmission of the data to UE2. UE1 can decide whether the receiving terminal UE2 needs to send feedback information. For example, for broadcast communication, the receiving terminal does not need to provide feedback, and for unicast communication, in order to improve the reliability of the system, the receiving terminal needs to provide feedback. Specifically, UE1 carries indication information in sidelink control information (Sidelink Control Information, SCI), and the indication information is used to indicate whether the receiving end needs to perform sidelink feedback.

The resources used for PSSCH transmission in NR-V2X include resources used for transmission of DMRS, and the DMRS is used for channel estimation, so that the receiving terminal can detect the PSSCH. In NR-V2X, the number of time domain symbols that can be used for SL transmission in one slot is 7, 8, 9, ..., 14, including AGC time domain symbols and GP time domain symbols. In one slot, The multiplexing form of PSSCH, PSCCH and PSFCH is shown in Figure 1-8, in which the physical sidelink control channel (Physical Sidelink Control CHannel, PSCCH) is aligned with the starting position in the frequency domain of PSSCH, and PSCCH occupies a subband. X PRBs, X is less than or equal to the size of the subband, PSCCH starts from the second available sideline time domain symbol, occupies 2 or 3 time domain symbols, and PSFCH occupies a time slot that can be used for sideline transmission. The second-to-last and third-to-last time-domain symbols in the domain symbols, the last time-domain symbol is used as GP, the first time-domain symbol of the two time-domain symbols of PSFCH can be used as AGC, when PSSCH is occupied The next time domain symbol to the domain symbol is GP. Among them, one subband includes multiple PRBs that are continuous in the frequency domain.

In the related art, for the pattern of PSSCH DMRS, see Figures 1-9 and Figures 1-10, which respectively show the DMRS pattern in the case where PSSCH (gray part in the figure) occupies 6-13 time-domain symbols.

The relationship between the position of the PSSCH DMRS in a slot and the number of symbols available for the sidelink in the slot is shown in Table 1 below:

Table 1: PSSCH DM-RS time domain location

It can be seen that the related art specifies a DMRS pattern in which the PSSCH occupies 6-13 time-domain symbols, wherein the time-domain symbols occupied by the PSSCH include the time-domain symbols of the AGC and do not include the last GP symbol. However, if a time slot includes time-domain symbols for transmitting PSFCH, and the number of time-domain symbols available for the sidelink is 7, or 8, or 9, remove the 2 time-domain symbols occupied by the PSFCH channel and the PSFCH If the GP symbol before the channel and the last one in the time slot are used as the GP symbol, the number of time domain symbols that can be used to transmit the PSSCH is 3, or 4, or 5, respectively. However, the DMRS pattern is not defined for this scenario in the related art; therefore, how to allocate time-domain symbols in a time slot reasonably and effectively has not yet been clarified.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

A schematic diagram of an optional processing flow of the channel transmission method provided by the embodiment of the present application, as shown in FIG. 2 , may at least include:

Step S201, the first device determines whether to transmit the PSFCH in the time slot according to the number of time domain symbols used for the sidelink in the time slot.

In some embodiments, the first device prohibits transmission of the PSFCH in the time slot if the number of time domain symbols used for the sidelink in the time slot is less than a first threshold. That is, in the case that the number of time domain symbols used for the sidelink in the time slot is less than the first threshold, the first device does not transmit the PSFCH in the time slot.

In some embodiments, the first threshold is less than or equal to 10, that is, the maximum value of the first threshold is 10. Preferably, the first threshold is equal to 10. In a specific implementation, if the number of time domain symbols used for the sidelink in the time slot is less than 10, the first device does not transmit the PSFCH in the time slot.

In some embodiments, the first device may acquire first configuration information, where the first configuration information is used to configure the number of time domain symbols used for the sidelink in one time slot. The time-domain symbols may be orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols.

During specific implementation, the first device may obtain the first configuration information in a protocol predefined manner or a pre-configured manner, or the second device may configure the first configuration information for the first device, or the first device and the first device may be configured with the first configuration information. The two devices negotiate to determine the first configuration information. When the second device is a network device, the first device receives the first configuration information sent by the second device, the first configuration information is, for example, through a system information block (System Information Block, SIB) or radio resource control (Radio Resource Control, RRC) signaling bearer, the first configuration information may be resource pool configuration information or bandwidth segment (BandWidth Part, BWP) configuration information.

In some embodiments, the first configuration information may include a sidelink symbol length (sl-LengthSymbols) parameter, where the sl-LengthSymbols parameter is used to configure time domain symbols used for the sidelink in one slot quantity. Wherein, the number of time domain symbols used for the sidelink can be determined according to the configuration information of the sidelink bandwidth part; the configuration information of the sidelink bandwidth part is, for example, SL-BWP-Generic, and the configuration information can be as follows:

The number of time-domain symbols used for the sidelink can be determined according to "sl-LengthSymbols" in the configuration information of the sidelink bandwidth part; the number of time-domain symbols used for the sidelink includes AGC symbols and GP symbols. Taking the schematic diagram of the time-domain symbols in a time slot shown in FIG. 3 as an example, if the value of the sl-LengthSymbols parameter is 10, the number of time-domain symbols representing the sidelink is 10, and 10 time-domain symbols The symbols include all AGC symbols and GP symbols; the starting symbol position of the time domain symbols that can be used for sideline transmission in a time slot is determined by the parameter sl-StartSymbol-r16. In Figure 3, the value of the sl-StartSymbol-r16 parameter is set is 4, which means that the first time-domain symbol used for sideline transmission is symbol 4 in the figure. Symbols 0 to 3 cannot be used to transmit the sidelink; symbols 5 to 9 are used to transmit PSSCH. Symbol 4 is the AGC time domain symbol, and the data transmitted on symbol 4 is the repetition of the data transmitted on symbol 5; the 10th time domain symbol and the 13th time domain symbol are GP time domain symbols;

symbols

11 and 12 are used for For the transmission of the PSFCH, the data transmitted on symbol 11 is the same as the data transmitted on symbol 12, i.e. the PSFCH transmitted on symbol 11 is a repetition of the PSFCH transmitted on symbol 12, or the PSFCH transmitted on symbol 12 is the PSFCH transmitted on symbol 11 and the symbol 11 can be used as the AGC time domain symbol.

In other embodiments, the first configuration information may further include a sidelink PSFCH period (sl-PSFCH-Period) parameter, and the sl-PSFCH-Period parameter is used to configure the transmission period of the PSFCH; wherein the PSFCH The transmission period can be determined according to the configuration parameters of the PSFCH; the configuration parameters of the PSFCH can be as follows:

The transmission period of the PSFCH may be determined according to "sl-PSFCH-Period" in the configuration parameter of the PSFCH. The transmission period of the PSFCH is N, and N={0, 1, 2, 4} time slots. If N=0, it means that the resource pool does not support the transmission of the PSFCH.

In some embodiments, if the value of the sl-LengthSymbols parameter is less than the first threshold, the value of the sl-PSFCH-Period parameter is configured as 0; that is, if the value of the sl-LengthSymbols parameter is less than 10, the sl-PSFCH-Period parameter is configured value of 0. It can also be understood that if the value of the sl-LengthSymbols parameter is less than 10, for example, the value of the sl-LengthSymbols parameter is 7, or 8, or 9, it is not expected to enable the PSFCH, that is, the first device does not transmit the PSFCH. It can also be understood that if the value of the sl-LengthSymbols parameter is less than 10, for example, the value of the sl-LengthSymbols parameter is 7, or 8, or 9, the transmission of the PSFCH is not supported in the time slot. Correspondingly, if the value of the sl-LengthSymbols parameter is greater than or equal to the first threshold, configure the value of the sl-PSFCH-Period parameter N={0, 1, 2, 4} time slots; that is, if the value of the sl-LengthSymbols parameter is If it is greater than or equal to 10, then configure the value N={0, 1, 2, 4} time slots of the sl-PSFCH-Period parameter.

In some embodiments, the time domain symbols used for the sidelink include AGC time domain symbols and/or GP time domain symbols.

In some embodiments, if the number of symbols used for sideline transmission in a slot is less than 10, the first device does not expect to transmit the PSFCH in that slot.

In some embodiments, if the number of symbols used for sideline transmission in one slot is less than 10, the period of the PSFCH is configured to be 0.

In some embodiments, transmitting the PSFCH may include transmitting the PSFCH, and/or receiving the PSFCH. Correspondingly, prohibiting the transmission of the PSFCH by the first device may include: the first device does not transmit the PSFCH, and/or the first device does not receive the PSFCH.

It should be understood that the configuration information for configuring the first threshold, the sidelink symbol length parameter and the sidelink PSFCH period parameter may be the same configuration information or different configuration information. For example, the first threshold is configured through the first RRC signaling, the sidelink symbol length parameter is configured through the second RRC signaling, and the sidelink PSFCH period parameter is configured through the third RRC signaling. Alternatively, the first threshold, the sidelink symbol length parameter and the sidelink PSFCH period parameter are configured through the first RRC signaling.

A schematic diagram of an optional processing flow of the channel configuration method provided by the embodiment of the present application, as shown in FIG. 4 , may at least include:

Step S301, the second device sends first configuration information, where the first configuration information is used to configure the number of time-domain symbols used for sidelinks in one time slot to be less than a first threshold; When the value is less than the first threshold, the transmission of the PSFCH in the time slot is prohibited.

In some embodiments, the second device sends the first configuration information to the first device.

In some embodiments, the related descriptions about the first configuration information, the first threshold, and the number of time-domain symbols used for the sidelink in one time slot are the same as the related descriptions in step S201 in the above-mentioned embodiment, and are not used here. Repeat.

In the embodiments shown in FIG. 2 and FIG. 4 of the present application, when the number of time domain symbols configured for the sidelink is smaller than the first threshold, the PSFCH is not transmitted, that is, the transmission of the sidelink feedback transmission channel is not supported. In this way, The time-domain symbols in a time slot can be allocated reasonably and effectively; so that when the number of time-domain symbols used for PSSCH transmission is less than 6, the existing DMRS patterns in the related art can still be used, such as using Figure 1- 9 and the DMRS pattern in Figures 1-10.

Another optional processing flow diagram of the channel configuration method provided by the embodiment of the present application, as shown in FIG. 5 , may at least include:

Step S401, the first device acquires second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum value of the number of time-domain symbols used for PSSCH transmission in one time slot.

In some embodiments, the time-domain symbols in which the PSSCH is transmitted may include AGC time-domain symbols. It should be understood that the AGC symbol is the first symbol in the time domain symbols available for sideline transmission, and the data on this symbol is a copy of the data on the next symbol adjacent to the symbol.

In some embodiments, the time-domain symbols in which the PSSCH is transmitted may not include GP time-domain symbols.

In some embodiments, the first device may acquire the second configuration information in a pre-defined manner or a pre-configured manner in a protocol, or the second device may configure the second configuration information for the first device, or the first device may be associated with The second device negotiates to determine the second configuration information. When the second device is a network device, the first device receives second configuration information sent by the second device, where the second configuration information is, for example, SIB or RRC signaling bearer, and the second configuration information may be a resource pool configuration information or BWP configuration information.

In some embodiments, the second threshold is six.

In some embodiments, if the first device determines that the number of time domain symbols used to transmit PSSCH in the time slot is less than the second threshold, the first device prohibits transmission of PSSCH. If the number of time-domain symbols used for PSSCH transmission in the time slot is greater than or equal to the second threshold, the first device may transmit the PSSCH.

In some embodiments, for the case where the second threshold is 6, if the first device determines that the number of time-domain symbols used to transmit PSSCH in one time slot is less than 6, the first device does not transmit PSSCH. If the first device determines that the number of time-domain symbols used to transmit the PSSCH in one time slot is greater than or equal to 6, the first device may transmit the PSSCH.

In some embodiments, the first device does not expect that the number of time-domain symbols used to transmit PSSCH in a slot is less than the second threshold.

For example, if the number of time-domain symbols used for transmitting PSSCH in a time slot is equal to the second threshold, that is, the number of time-domain symbols used for transmitting PSSCH is 6, then PSSCH can be transmitted in this time slot. If the time slot includes time domain symbols used for transmitting PSFCH, the total number of time domain symbols used for sidelink in the time slot may be 10; that is, the time slot includes 6 time domain symbols used for transmitting PSSCH Time domain symbols, 2 time domain symbols for transmitting PSFCH, and 2 GP time domain symbols.

For another example, if the number of time-domain symbols used for PSSCH transmission in the time slot is greater than the second threshold, for example, the number of time-domain symbols used for PSSCH transmission is 7, the PSSCH can be transmitted in the time slot. If the time slot includes time domain symbols used for transmitting PSFCH, the total number of time domain symbols used for the sidelink in the time slot may be 11; that is, the time slot includes 7 time domain symbols used for transmitting PSSCH Time domain symbols, 2 time domain symbols for transmitting PSFCH, and 2 GP time domain symbols.

In some embodiments, the transmitting the PSSCH may include transmitting the PSSCH, and/or receiving the PSSCH.

Correspondingly, prohibiting the transmission of the PSSCH by the first device may include: the first device does not transmit the PSSCH, and/or the first device does not receive the PSSCH. The transmission of the PSSCH by the first device may include: the first device sending the PSSCH, and/or the first device receiving the PSSCH.

A schematic diagram of another optional processing flow of the channel configuration method provided by the embodiment of the present application, as shown in FIG. 6 , may at least include:

Step S501, the second device sends second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum value of the number of time-domain symbols used for PSSCH transmission in one time slot.

In some embodiments, the second device may send second configuration information to the first device, and the first device may determine whether to transmit the PSSCH in the time slot according to the second configuration information. When the second device is a network device, the first device receives second configuration information sent by the second device, where the second configuration information is, for example, SIB or RRC signaling bearer, and the second configuration information may be a resource pool configuration information or BWP configuration information.

In some embodiments, the time-domain symbols in which the PSSCH is transmitted may include AGC time-domain symbols.

In some embodiments, the second threshold is six.

In some embodiments, if the first device receives the second configuration information of the second device, and the first device determines that the number of time domain symbols used to transmit PSSCH in the time slot is less than the number of time domain symbols configured in the second configuration information two thresholds, the first device is prohibited from transmitting PSSCH. If the number of time-domain symbols used for PSSCH transmission in the time slot is greater than or equal to the second threshold, the first device may transmit the PSSCH.

In some embodiments, the second device may also determine whether to transmit the PSSCH according to the second configuration information; for example, if the second device determines that the number of time domain symbols used to transmit the PSSCH in the time slot is less than the second configuration information The second threshold configured in , the second device is prohibited from transmitting PSSCH. If the number of time domain symbols used to transmit PSSCH in the time slot is greater than or equal to the second threshold, the second device may transmit PSSCH.

In some embodiments, for the case where the second threshold is 6, if the first device or the second device determines that the number of time domain symbols used for PSSCH transmission in a time slot is less than 6, the first device or the second device The device does not transmit PSSCH. If the first device or the second device determines that the number of time domain symbols used to transmit the PSSCH in one time slot is greater than or equal to 6, the first device or the second device may transmit the PSSCH.

Correspondingly, prohibiting the transmission of the PSSCH by the first device or the second device may include: the first device or the second device does not transmit the PSSCH, and/or the first device or the second device does not receive the PSSCH. The transmission of the PSSCH by the first device or the second device may include: sending the PSSCH by the first device or the second device, and/or receiving the PSSCH by the first device or the second device.

In the embodiments described in FIG. 5 and FIG. 6 of the present application, the minimum value of the number of time-domain symbols used for PSSCH transmission in a time slot configured by the second configuration information enables the first device or the second device to determine the actual The size relationship between the number of time-domain symbols used for transmitting PSSCH and the minimum value of the number of time-domain symbols used for transmitting PSSCH in a time slot configured by the second configuration information, to determine whether to transmit PSSCH; When the number of time-domain symbols for transmitting PSSCH is greater than or equal to the minimum value, PSSCH can be transmitted; when the actually determined number of time-domain symbols used to transmit PSSCH is less than the minimum value, PSSCH cannot be transmitted; so , through the configuration of PSSCH parameters, the existing DMRS patterns in the related art can still be effectively used, for example, the DMRS patterns in FIGS. 1-9 and 1-10 can be effectively used.

It should be noted that, in the above-mentioned embodiments of the present application, the first device and the second device may be two terminal devices, or two UEs, in particular, may be devices capable of sending and receiving corresponding information in a V2X scenario The two devices, for example, may be UE1 and UE2 shown in Figures 1-7. In addition, in this embodiment, the first device may be a transmitting end device (or a transmitting end UE), and the second device may be a receiving end device (or a receiving end UE).

To implement the channel transmission method shown in FIG. 2, an embodiment of the present application further provides a first device 700. An optional structural schematic diagram of the first device 700, as shown in FIG. 7, includes:

The first processing unit 701 is configured to determine whether to transmit the PSFCH in the time slot according to the number of time domain symbols used for the sidelink in the time slot.

In some optional embodiments, the first processing unit 701 is configured to prohibit transmission in the time slot if the number of time domain symbols used for the sidelink in the time slot is less than a first threshold the PSFCH.

In some optional embodiments, the first threshold is less than or equal to ten.

In some optional embodiments, the first processing unit 701 is further configured to acquire first configuration information, where the first configuration information is used to configure the number of time domain symbols used for the sidelink in one time slot .

In some optional embodiments, the first configuration information includes a sl-LengthSymbols parameter, where the sl-LengthSymbols parameter is used to configure the number of time domain symbols used for the sidelink in one slot.

In some optional embodiments, the first configuration information includes a sl-PSFCH-Period parameter; if the number of time domain symbols used for the sidelink in the time slot is less than a first threshold, the sl-PSFCH-Period parameter is The value of the PSFCH-Period parameter is zero.

In some optional embodiments, the transmitting the PSFCH includes sending the PSFCH, and/or receiving the PSFCH.

In some optional embodiments, the time-domain symbols used for the sidelink include: AGC time-domain symbols and/or GP time-domain symbols.

To implement the channel configuration method shown in FIG. 4, an embodiment of the present application further provides a second device 800. An optional structural schematic diagram of the second device 800, as shown in FIG. 8, includes:

A first sending unit 801, configured to send first configuration information, where the first configuration information is used to configure the number of time domain symbols used for sidelinks in one time slot to be less than a first threshold;

In the case that the number of the time domain symbols is less than the first threshold, the transmission of the PSFCH in the time slot is prohibited.

In some optional embodiments, the first threshold is less than or equal to ten.

In some optional embodiments, the time-domain symbols used for sideline transmission include: AGC time-domain symbols and/or GP time-domain symbols.

To implement the channel configuration method shown in FIG. 5, an embodiment of the present application further provides a first device 1000. Another optional structural schematic diagram of the first device 1000, as shown in FIG. 9, includes:

The second processing unit 1001 is configured to acquire second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum number of time-domain symbols used for PSSCH transmission in one time slot value.

In some optional embodiments, the second threshold is 6.

In some optional embodiments, the time-domain symbols for transmitting PSSCH include: AGC time-domain symbols.

In some optional embodiments, the time-domain symbols for transmitting PSSCH do not include: GP time-domain symbols.

In some optional embodiments, the second processing unit 1001 is configured to prohibit PSSCH transmission if the number of time domain symbols used for PSSCH transmission in the time slot is less than the second threshold.

In some optional embodiments, the transmitting the PSSCH includes transmitting the PSSCH and/or receiving the PSSCH.

To implement the channel configuration method shown in FIG. 6, an embodiment of the present application further provides a second device 2000. Another optional structural schematic diagram of the second device 2000, as shown in FIG. 10, includes:

The second sending unit 2001 is configured to send second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum number of time-domain symbols used for PSSCH transmission in one time slot value.

In some optional embodiments, the second threshold is 6.

In some optional embodiments, if the number of time-domain symbols used for PSSCH transmission in the time slot is less than the second threshold, transmission of PSSCH is prohibited.

It should be noted that, in each embodiment of the present application, the aforementioned first device and second device may be two terminal devices, or two UEs, in particular, may be two devices capable of sending and receiving corresponding information in a V2X scenario The devices, for example, may be UE1 and UE2 shown in FIGS. 1-7 . In addition, in this embodiment, the first device may be a transmitting end device (or a transmitting end UE), and the second device may be a receiving end device (or a receiving end UE).

FIG. 11 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application. The communication device in this embodiment may be specifically the first device or the second device in the foregoing embodiments. The communication device 900 shown in FIG. 11 includes a processor 910, and the processor 910 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11 , the communication device 900 may further include a memory 920 . The processor 910 may call and run a computer program from the memory 920 to implement the methods in the embodiments of the present application.

The memory 920 may be a separate device independent of the processor 910 , or may be integrated in the processor 910 .

Optionally, as shown in FIG. 11 , the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include antennas, and the number of the antennas may be one or more.

FIG. 12 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1000 shown in FIG. 12 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.

Optionally, as shown in FIG. 12 , the chip 1000 may further include a memory 1020 . The processor 1010 may call and run a computer program from the memory 1020 to implement the methods in the embodiments of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030 . The processor 1010 can control the input interface 1030 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040 . The processor 1010 can control the output interface 1040 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the first device or the second device in the embodiment of the present application, and the chip can implement the corresponding processes of each method in the embodiment of the present application, which is not repeated here for brevity.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the first device or the second device in the embodiments of the present application, and the computer program enables the computer to execute the methods described in the embodiments of the present application by the first device or the second device. For the sake of brevity, the corresponding process of implementation will not be repeated here.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the first device or the second device in the embodiments of the present application, and the computer program instructions cause the computer to execute the methods in the embodiments of the present application by the first device or the second device. The corresponding process, for the sake of brevity, will not be repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program may be applied to the first device or the second device in the embodiments of the present application, and when the computer program is run on the computer, the computer program executes the methods implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, the corresponding process is not repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

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

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

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A channel transmission method, comprising:

The first device determines whether to transmit the physical sidelink feedback channel PSFCH in a time slot according to the number of time domain symbols used for the sidelink in the time slot.
The method according to claim 1, wherein the first device determines whether to transmit the PSFCH in the time slot according to the number of time domain symbols used for the sidelink in the time slot, comprising:

If the number of time domain symbols used for the sidelink in the time slot is less than a first threshold, the first device prohibits transmission of the PSFCH in the time slot.
The method of claim 2, wherein the first threshold is less than or equal to ten.
The method according to any one of claims 1 to 3, wherein the method further comprises:

The first device acquires first configuration information, where the first configuration information is used to configure the number of time domain symbols used for the sidelink in one time slot.
The method according to claim 4, wherein the first configuration information includes a sidelink symbol length sl-LengthSymbols parameter, the sl-LengthSymbols parameter is used to configure the time slot for the sidelink in one slot The number of domain symbols.
The method according to claim 4 or 5, wherein the first configuration information comprises a sidelink PSFCH period s1-PSFCH-Period parameter; If the number is less than the first threshold, the value of the sl-PSFCH-Period parameter is zero.
The method according to any one of claims 1 to 6, wherein the transmitting the PSFCH comprises:

The PSFCH is transmitted, and/or the PSFCH is received.
The method according to any one of claims 1 to 7, wherein the time domain symbols for sidelinks comprise:

Automatic gain control AGC time domain symbols and/or guard interval GP time domain symbols.
A channel configuration method, comprising:

The second device sends first configuration information, where the first configuration information is used to configure the number of time-domain symbols used for the sidelink in one time slot to be less than a first threshold;

In the case that the number of the time domain symbols is less than the first threshold, the transmission of the physical sideline feedback channel PSFCH in the time slot is prohibited.
10. The method of claim 9, wherein the first threshold is less than or equal to ten.
The method of claim 9 or 10, wherein the transmitting the PSFCH comprises:

The PSFCH is transmitted, and/or the PSFCH is received.
The method according to any one of claims 9 to 11, wherein the time domain symbols used for sideline transmission comprise:

Automatic gain control AGC time domain symbols and/or guard interval GP time domain symbols.
The method according to any one of claims 9 to 12, wherein the first configuration information includes a sidelink symbol length sl-LengthSymbols parameter, and the sl-LengthSymbols parameter is used to configure a The number of time domain symbols for the uplink.
The method according to any one of claims 9 to 13, wherein the first configuration information comprises a sidelink PSFCH period s1-PSFCH-Period parameter; If the number of domain symbols is less than the first threshold, the value of the sl-PSFCH-Period parameter is zero.
A channel configuration method, comprising:

The first device acquires second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum number of time-domain symbols used for transmitting the physical sideline shared channel PSSCH in one time slot value.
16. The method of claim 15, wherein the second threshold is six.
The method according to claim 15 or 16, wherein the time domain symbols for transmitting the PSSCH comprise:

Automatic gain control AGC time domain symbols.
The method according to any one of claims 15 to 17, wherein the time domain symbols for transmitting PSSCH do not include:

Guard interval GP time domain symbol.
The method according to any one of claims 15 to 18, wherein if the number of time-domain symbols used for PSSCH transmission in the time slot is less than the second threshold, the first device prohibits transmission of PSSCH.
The method of claim 19, wherein the transmitting PSSCH comprises:

The PSSCH is transmitted, and/or the PSSCH is received.
A channel configuration method, the method comprising:

The second device sends second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent the minimum number of time-domain symbols used for transmitting the physical sideline shared channel PSSCH in one time slot value.
21. The method of claim 21, wherein the second threshold is six.
The method according to claim 21 or 22, wherein the time domain symbols for transmitting the PSSCH comprise:

Automatic gain control AGC time domain symbols.
The method according to any one of claims 21 to 23, wherein the time-domain symbols for transmitting PSSCH do not include:

Guard interval GP time domain symbol.
The method according to any one of claims 21 to 24, wherein if the number of time-domain symbols used for transmitting PSSCH in the time slot is less than the second threshold, the transmission of PSSCH is prohibited.
The method of claim 25, wherein the transmitting PSSCH comprises:

The PSSCH is transmitted, and/or the PSSCH is received.
A first device, the first device comprising:

The first processing unit is configured to determine whether to transmit the physical sidelink feedback channel PSFCH in a time slot according to the number of time domain symbols used for the sidelink in the time slot.
The first device of claim 27, wherein,

The first processing unit is configured to prohibit the transmission of the PSFCH in the time slot if the number of time domain symbols used for the sidelink in the time slot is less than a first threshold.
28. The first device of claim 28, wherein the first threshold is less than or equal to ten.
The first device according to any one of claims 27 to 29, wherein the first processing unit is further configured to acquire first configuration information, where the first configuration information is used to configure a time slot for a side The number of time domain symbols for the uplink.
The first device according to claim 30, wherein the first configuration information comprises a sidelink symbol length sl-LengthSymbols parameter, the sl-LengthSymbols parameter is used to configure a time slot for the sidelink the number of time domain symbols.
The first device according to claim 30 or 31, wherein the first configuration information includes a sidelink PSFCH period s1-PSFCH-Period parameter; is less than the first threshold, the value of the sl-PSFCH-Period parameter is zero.
The first device according to any one of claims 27 to 32, wherein the transmitting the PSFCH comprises:

The PSFCH is transmitted, and/or the PSFCH is received.
The first device of any one of claims 27 to 33, wherein the time domain symbols for sidelinks comprise:

Automatic gain control AGC time domain symbols and/or guard interval GP time domain symbols.
A second device, the second device comprising:

a first sending unit, configured to send first configuration information, where the first configuration information is used to configure the number of time-domain symbols used for the sidelink in one time slot to be less than a first threshold;

In the case that the number of the time domain symbols is less than the first threshold, the transmission of the physical sideline feedback channel PSFCH in the time slot is prohibited.
36. The second apparatus of claim 35, wherein the first threshold is less than or equal to ten.
The second device of claim 35 or 36, wherein the transmitting the PSFCH comprises:

The PSFCH is transmitted, and/or the PSFCH is received.
The second device according to any one of claims 35 to 37, wherein the time domain symbols for sideline transmission comprise:

Automatic gain control AGC time domain symbols and/or guard interval GP time domain symbols.
The second device according to any one of claims 35 to 38, wherein the first configuration information includes a sidelink symbol length sl-LengthSymbols parameter, where the sl-LengthSymbols parameter is used to configure the The number of time-domain symbols for the sidelink.
The second device according to any one of claims 35 to 39, wherein the first configuration information includes a sidelink PSFCH period s1-PSFCH-Period parameter; if the time slot is used for the sidelink The number of time-domain symbols is less than the first threshold, and the value of the sl-PSFCH-Period parameter is zero.
A first device, the first device comprising:

The second processing unit is configured to acquire second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent a time domain for transmitting the PSSCH in a time slot Minimum number of symbols.
41. The first device of claim 41, wherein the second threshold is six.
The first device according to claim 41 or 42, wherein the time-domain symbols for transmitting the PSSCH comprise:

Automatic gain control AGC time domain symbols.
The first device according to any one of claims 41 to 43, wherein the time domain symbols for transmitting PSSCH do not include:

Guard interval GP time domain symbol.
The first device according to any one of claims 41 to 44, wherein the second processing unit is configured to, if the number of time domain symbols used for PSSCH transmission in the time slot is less than the second threshold, Then the transmission of PSSCH is prohibited.
The first device of claim 45, wherein the transmitting PSSCH comprises:

The PSSCH is transmitted, and/or the PSSCH is received.
A second device, the second device comprising:

A second sending unit, configured to send second configuration information, where the second configuration information is used to configure a second threshold, where the second threshold is used to represent a time domain for transmitting the PSSCH in a time slot Minimum number of symbols.
48. The second device of claim 47, wherein the second threshold is six.
The second device according to claim 47 or 48, wherein the time-domain symbols for transmitting the PSSCH comprise:

Automatic gain control AGC time domain symbols.
The second device according to any one of claims 47 to 49, wherein the time-domain symbols for transmitting PSSCH do not include:

Guard interval GP time domain symbol.
The second device according to any one of claims 47 to 50, wherein if the number of time-domain symbols used for PSSCH transmission in the time slot is less than the second threshold, transmission of PSSCH is prohibited.
The second apparatus of claim 51, wherein the transmitting PSSCH comprises:

The PSSCH is transmitted, and/or the PSSCH is received.
A first device comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1 to 8.
A second device comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 9 to 14.
A first device comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 15 to 20.
A second device comprising: a processor and a memory for storing a computer program executable on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 21 to 26.
A chip, comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 8.
A chip, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 9 to 14.
A chip, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 15 to 20.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device on which the chip is installed executes the method according to any one of claims 21 to 26.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the steps of the method according to any one of claims 1 to 8.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the steps of the method according to any one of claims 9 to 14.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the steps of the method according to any one of claims 15 to 20.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the steps of the method according to any one of claims 21 to 26.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 1 to 8.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 9 to 14.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 15 to 20.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 21 to 26.
A computer program that causes a computer to perform the method of any one of claims 1 to 8.
A computer program which causes a computer to perform the method of any one of claims 9 to 14.
A computer program which causes a computer to perform the method of any one of claims 15 to 20.
A computer program that causes a computer to perform the method of any one of claims 21 to 26.