WO2022206095A1 - 一种边链路通信终端设备协作信息指示方法和设备 - Google Patents

一种边链路通信终端设备协作信息指示方法和设备 Download PDF

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Publication number
WO2022206095A1
WO2022206095A1 PCT/CN2022/070500 CN2022070500W WO2022206095A1 WO 2022206095 A1 WO2022206095 A1 WO 2022206095A1 CN 2022070500 W CN2022070500 W CN 2022070500W WO 2022206095 A1 WO2022206095 A1 WO 2022206095A1
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Prior art keywords
information
psfch
resource
pssch
resources
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PCT/CN2022/070500
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English (en)
French (fr)
Inventor
王志勤
沈霞
杜滢
闫志宇
焦慧颖
刘晓峰
魏贵明
徐菲
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中国信息通信研究院
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Publication of WO2022206095A1 publication Critical patent/WO2022206095A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of mobile communication technologies, and in particular, to an indication method and device for cooperative communication between terminal devices in an application scenario of side link communication.
  • terminal A needs to send cooperation information to terminal B to help terminal B select appropriate transmission resources and avoid resource collision with other terminals.
  • Terminal A may be the destination receiving terminal of the information sent by terminal B, or may be another terminal.
  • the coordination information sent by terminal A to terminal B may be carried by side link control information (SCI), MAC CE, PC5-RRC or PSFCH.
  • SCI side link control information
  • MAC CE MAC CE
  • PC5-RRC PC5-RRC
  • PSFCH bears the cooperation signaling and has the advantage of low delay, and at the same time, a terminal that supports no channel listening function provides cooperation information to other terminals.
  • the specific way of designing the PSFCH channel for current communication between terminals is to configure periodic PSFCH resources for a resource pool through high-level signaling, and then establish a mapping relationship between the PSFCH resources in one time slot and the subchannels in multiple time slots, Let each subchannel on each slot be mapped into a set of PSFCH resources.
  • the present application proposes a method and device for indicating collaboration information of side link communication terminal equipment, aiming at solving the problem that the prior art cannot send collaboration information.
  • An embodiment of the present application provides a method for indicating collaboration information of side link communication terminal equipment, including the following steps:
  • the position of the dedicated resource is indicated,
  • the cooperation information is used to indicate that there is a conflict in the transmission resources occupied by the PSSCH sent by the first terminal device and the second terminal device, or used to indicate the HARQ retransmission information sent by the third terminal device.
  • the dedicated resource index includes a mapping relationship between the PSSCH and the dedicated resource.
  • the collaboration information includes at least one of the following information:
  • the HARQ information of PSSCH is repeatedly transmitted
  • the standby PSFCH resource set occupies a different resource position from the PSFCH resource set used for sending HARQ information in the PSFCH resources configured by the system.
  • the different resource positions satisfy at least one of the following characteristics: different time slots; different frequency bands; different symbols in the same time slot; different cyclic offsets.
  • the standby PSFCH resource set is a subset of the PSFCH resource set used for sending HARQ information in the PSFCH resources configured by the system;
  • the dedicated resources and the resources for sending HARQ information correspond to different sub-channels of the PSSCH, and the dedicated resource index is in is the number of spare PSFCH resources corresponding to PSSCH and used for sending coordination information, PID is the ID of the sending terminal, and M ID is the ID of the receiving terminal.
  • the dedicated resources and the resources for sending HARQ information correspond to the same subchannel or different subchannels of the PSSCH, and the dedicated resource index is in is the number of spare PSFCH resources corresponding to PSSCH and used for sending coordination information, PID is the ID of the sending terminal device, M ID is the ID of the receiving terminal device, and O is the offset.
  • any one of the method embodiments of the present application is used, and further, the number of the standby PSFCH resource sets is more.
  • the indication information of the PSSCH resource conflict and the HARQ information are jointly indicated, when the indication information of the PSSCH resource conflict is default, it means that there is no resource conflict; when the PSSCH resource conflict When the indication information is NACK, it means that there is a resource conflict; when the HARQ information is default, it means that the PSSCH is incorrectly received.
  • the method described in any one of the embodiments of the present application, used in a terminal device includes the following steps:
  • the terminal device detects the transmission resources occupied by the data sent by the first terminal and the second terminal device, and determines whether there is a conflict;
  • the terminal device determines the dedicated resource according to the acquired indication information for determining the standby PSFCH resource set and the dedicated resource index;
  • the terminal device determines the specific content indicated in the cooperation information, and sends the cooperation information to the first terminal and/or the second terminal through the dedicated resource.
  • the indication information for determining the standby PSFCH resource set and the dedicated resource index includes at least one of the following: a subchannel parameter and an offset parameter.
  • the present application also proposes a communication device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the same implementation as the present application.
  • a communication device comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the same implementation as the present application.
  • the present application further provides a computer-readable medium, where a computer program is stored on the computer-readable medium, and when the computer program is executed by a processor, the steps of the method according to any one of the embodiments of the present application are implemented.
  • the method of the present invention supports that the terminal uses the PSFCH channel to send the cooperation information of the communication between the terminals, which is beneficial to reduce the sending delay and resource overhead of the cooperation information.
  • the method does not affect the PSFCH resources used for sending HARQ information, and the PSFCH resource overhead can be further reduced through the joint content design of the HARQ information and the cooperation information.
  • Figure 1 is a side link communication resource conflict scenario 1
  • Fig. 2 is a side link communication resource conflict scenario 2;
  • Fig. 3 is the flow chart of the method embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the mapping relationship between side link signaling resources and PSSCH;
  • 5 is a schematic diagram of dedicated resources when the first subset and the second subset are different;
  • FIG. 6 is a schematic diagram of dedicated resources when the first subset and the second subset are the same;
  • FIG. 7 is a schematic diagram of defining multiple dedicated PSSCH resource sets in a multicast scenario
  • FIG. 8 is a flowchart of an embodiment in which the method of the present application is applied to a terminal device
  • FIG. 9 is a schematic structural diagram of a terminal device of the present invention.
  • the present invention provides a method and device for indicating cooperative communication between terminal devices, which are applied in side link communication.
  • the main ideas in the method are:
  • the terminal determines the PSFCH resource for sending the coordination information, wherein the method for determining the PSFCH resource is to avoid conflict between the resource for sending the coordination information and the resource for sending the HARQ information.
  • the PSFCH resources configured by the original system determine a PSFCH resource that is different from the PSFCH resource that originally sent the HARQ information to send the coordination information, or use the newly configured PSFCH resource to determine that the PSFCH resource is bound to the sending PSSCH resource to send the coordination information.
  • the terminal determines the specific content indicated in the cooperation information, and the specific content is jointly designed with the HARQ information corresponding to the PSSCH, so as to reduce the overhead of the PSFCH resource.
  • FIG. 1 is a side link communication resource conflict scenario 1.
  • Terminal A is the receiving terminal of the data sent by terminal B and terminal C.
  • Terminal A detects that the transmission resources occupied by terminal B and terminal C to send data to terminal A conflict, and can send coordination information to terminal B through the PSFCH to indicate the conflict, so that the terminal B performs resource reselection.
  • FIG. 2 is a side link communication resource conflict scenario 2.
  • Terminal A is a surrounding terminal of terminal B and terminal C.
  • Terminal A detects a conflict between the transmission resources occupied by terminal B and terminal C to send data to terminal D through channel sensing, and can send cooperation information to terminal B through the PSFCH to indicate the conflict. , so that terminal B performs resource reselection.
  • FIG. 3 is a flowchart of a method embodiment of the present invention.
  • An embodiment of the present application provides a method for indicating collaboration information of side link communication terminal equipment, including the following steps 101 to 103:
  • Step 101 Determine a spare PSFCH resource set corresponding to the PSSCH, including dedicated resources for sending coordination information.
  • the cooperation information is used to indicate that there is a conflict in the transmission resources occupied by the PSSCH sent by the first terminal device and the second terminal device, or used to indicate the HARQ retransmission information sent by the third terminal device.
  • the dedicated resources used for sending cooperation information are different from the resources used for sending HARQ information.
  • the backup PSFCH resource set and the PSFCH resource set used for sending HARQ information in the system-configured PSFCH resources occupy different resource positions, or the backup PSFCH resource set is one of the system-configured PSFCH resources used for sending HARQ information.
  • the standby PSFCH resource set has a corresponding relationship with the resource location of the traffic channel PSSCH corresponding to the cooperation information, and is different from the PSFCH resource set used for sending HARQ information in the system-configured PSFCH resources. resource location.
  • the different resource locations satisfy at least one of the following characteristics: different time slots; different frequency bands; different symbols in the same time slot; the same symbol and frequency band, and different cyclic offsets.
  • a PSFCH resource at a different resource location from the PSFCH resource used for sending the HARQ information can be configured for sending the coordination information by means of newly configuring the PSFCH resource by the system.
  • the standby PSFCH resource set has a corresponding relationship with the resource location of the PSSCH service channel corresponding to the cooperation information, and is a subset of the PSFCH resource set configured by the system for sending HARQ information, for the first subset.
  • the PSFCH resource set corresponding to the PSSCH service channel and used for actually sending HARQ information is also a subset of the PSFCH resource set configured by the system and used for sending HARQ information, which is the second subset.
  • the first subset is different from the second subset, or the same.
  • the difference between the first subset and the second subset means that the first subset and the second subset occupy different resource locations, and the different resource locations satisfy at least one of the following characteristics: different time slots; different frequency bands; Different symbols of slots; same symbol and frequency band, different cyclic offset.
  • the first subset is different from the second subset, and the PSFCH resource sets corresponding to different sub-channels in the sub-channels occupied by the PSSCH can be respectively used as the PSFCH sets corresponding to the PSSCH and used for sending coordination information, and the corresponding PSFCH sets corresponding to the PSSCH.
  • PSFCH resource set used to send HARQ information can be respectively used as the PSFCH sets corresponding to the PSSCH and used for sending coordination information.
  • the first subset is the same as the second subset, which means that the PSFCH resource set corresponding to the same one or more sub-channels in the sub-channels occupied by the PSSCH is used as the PSFCH set corresponding to the PSSCH and used for sending coordination information, and corresponding to the PSSCH.
  • the set of PSFCH resources used to send HARQ information is the same as the second subset, which means that the PSFCH resource set corresponding to the same one or more sub-channels in the sub-channels occupied by the PSSCH is used as the PSFCH set corresponding to the PSSCH and used for sending coordination information, and corresponding to the PSSCH.
  • the set of PSFCH resources used to send HARQ information is used to send HARQ information.
  • Step 102 according to the dedicated resource index, in the standby PSFCH resource set, determine the dedicated resource position for sending the coordination information corresponding to the PSSCH.
  • the dedicated resource positions used for sending the coordination information corresponding to the PSSCH occupy different resource positions from the PSFCH resources used for sending the HARQ information corresponding to the PSSCH.
  • the dedicated resource index includes a mapping relationship between the PSSCH and the dedicated resource.
  • the mapping relationship between the traffic channel PSSCH proposed in this application and the corresponding PSFCH resources for sending coordination information is as follows:
  • the dedicated resource index is in is the number of dedicated resources in the set of standby PSFCH resources corresponding to PSSCH for sending coordination information, wherein PID is the sending terminal equipment ID provided by the UE of the PSSCH in the side link control information, and M ID is the PSSCH receiving terminal equipment ID, general It also refers to the member ID of the receiving UE in the multicast scenario, where O is the offset.
  • the offset O may take a value of 0.
  • the offset O can be configured to be greater than the number of group members, that is, O ⁇ max(M ID ), reducing the occurrence of such collisions.
  • Step 103 Transmit the cooperation information.
  • the content of the collaboration information includes at least one of the following information:
  • the HARQ information of the PSSCH is repeatedly transmitted, that is, the HARQ information corresponding to the PSSCH is repeatedly transmitted;
  • the indication information of PSSCH resource conflict can be used to indicate: resource conflict exists, the type, quantity or identification of conflicting resources, and resource reselection is recommended or required;
  • the indication information of the reserved PSSCH resource conflict can be used to indicate that there is a resource conflict, the type, quantity or identification of the conflicting resources, and resource reselection is recommended or required; the reserved PSSCH resource here refers to the corresponding PSCCH indication of the PSSCH. Reserve PSSCH resources.
  • the specific cooperation information indicates which type of the above information can be indicated by higher layer signaling or SCI.
  • the cooperation information indicates which type of information described above may also be related to the total number of cooperation information bits.
  • the coordination information is only 1 bit, and it is an example of repeated transmission of HARQ information corresponding to the PSSCH. If the HARQ information corresponding to the PSSCH is ACK, the 1-bit information corresponds to ACK, and if the HARQ information corresponding to the PSSCH is NACK, the 1-bit information corresponds to NACK. If only NACK information is fed back corresponding to the PSSCH, the 1-bit information corresponds to NACK only when the HARQ information is NACK. If the 1bit information corresponds to the PSSCH resource conflict situation:
  • the specific content of the cooperation information and the HARQ information corresponding to the PSSCH are jointly designed to reduce the overhead of the PSFCH resource.
  • the cooperation information is only 1-bit information, and it is an example of the corresponding PSSCH resource conflict indication.
  • NACK is fed back for cooperation information corresponding to PSSCH resource conflict, otherwise ACK is fed back.
  • PSFCH resource overhead can be reduced.
  • the indication information of the PSSCH resource conflict is default, it means that there is no resource conflict; when the indication information of the PSSCH resource conflict is NACK, it means that there is a resource conflict; when the HARQ information is default, it means that the PSSCH is incorrect take over.
  • the coordination information when the coordination information includes multiple bit information, if the resource conflict is indicated, it can be used for the conflict of multiple reserved PSSCH resources indicated by the PSCCH corresponding to the PSSCH, or used to indicate the time-frequency domain corresponding to the PSSCH.
  • Conflict situation such as including the identification, type, quantity, etc. of conflicting resources, and further, can also instruct the sending terminal receiving the cooperation information to perform the time domain, or frequency domain, or PSSCH for the PSSCH, which one or a group of sub-channel resources reselection.
  • 2-bit cooperation information when it is detected that the first bit is NACK, and the second bit is not sent, it indicates resource conflict and can indicate that time domain or frequency domain reselection is acceptable; when the first bit is detected to be NACK, and the second bit is sent as NACK, it indicates that the resource Conflict and indicate time domain reselection; when it is detected that the first bit is NACK and the second bit is sent as ACK, it indicates resource conflict and indicates frequency domain reselection.
  • 2-bit cooperation information "00" indicates that the first or first group of PSSCH sub-channel resources conflict; "01” indicates that the second or second group of PSSCH sub-channel resources conflict; "10” indicates that the third or second PSSCH sub-channel resource conflicts. The 3rd group subchannel resource conflicts; "11” indicates the PSSCH 4th or 4th group subchannel resource conflict.
  • the coordination information can reduce the transmission of PSFCH resources through content design, and the specific reduction method can be referred to as an example, which will not be repeated here.
  • FIG. 4 is a schematic diagram of a mapping relationship between side link signaling resources and PSSCH.
  • the "side link signaling resource" here refers to the PSFCH resource used for sending HARQ information, or the PSFCH resource used for sending coordination information.
  • the specific method of the current PSFCH channel design for inter-terminal communication is to configure periodic PSFCH resources for a resource pool through high-level signaling, and then combine the PSFCH resources on one time slot with those on multiple time slots.
  • a mapping relationship is established for the sub-channels of each time slot, so that each sub-channel on each time slot is mapped to a group of PSFCH resources, and the PSFCH candidate resources corresponding to the traffic channel PSSCH are the first sub-channel occupied by PSSCH or all sub-channels occupied by PSSCH.
  • the specific method of determining the second subset in the PSFCH resources configured by the system is: according to the PSFCH resources configured by the system, it is assumed that the number of PRBs occupied by the PSFCH resources configured on a time slot is and N subch subchannels on time slots are associated, that is, each subchannel will correspond to PSFCH PRBs. Corresponding to the jth subchannel on the ith slot PSFCH PRBs in in the position of in Since the PSFCH is generated based on the sequence, resource multiplexing can also be performed by means of cyclic shift.
  • the number of PSFCH resources in the candidate PSFCH resource set corresponding to a subchannel is the number of candidate PSFCH resources for sending HARQ information corresponding to a traffic channel PSSCH.
  • the candidate PSFCH resource here is used to send HARQ information, where It is a parameter configured by the high layer, and the value is 1 or the number of sub-channels occupied by PSSCH. If the value is 1, it means that the candidate PSFCH resource corresponding to the service channel PSSCH is the candidate PSFCH resource set corresponding to the first sub-channel occupied by the PSSCH; if the value is the number of sub-channels occupied by the PSSCH, it means that the service channel PSSCH
  • the corresponding candidate PSFCH resource set is the union of the candidate PSFCH resource sets corresponding to all subchannels occupied by the PSSCH.
  • the number of dedicated resources in the standby PSFCH resource set corresponding to one traffic channel PSSCH for sending coordination information is:
  • parameters It is a configuration parameter used to define the number of dedicated resources in the standby PSFCH resource set in the transmission coordination information. According to whether the first subset and the second subset are the same, the corresponding and The values are the same or different, and the value is greater than or equal to 1.
  • the first subset is different from the second subset, when the PSSCH occupies the number of subchannels greater than 1, when the PSFCH resource set corresponding to the first subchannel in the subchannel occupied by the PSSCH corresponds to the PSFCH resource set corresponding to the PSSCH for sending HARQ information, that is, and At this time, the first subset can be different from the second subset, the parameter with the above Can be configured with different parameters; otherwise, in other cases, the first subset is the same as the second subset, and the parameters with the above are the same parameter, that is, take the same value. Further, the terminal can obtain the SCI through high layer signaling or side link control signaling value of .
  • the candidate PSFCH resource set for sending coordination information corresponding to the traffic channel PSSCH is the same as the PSFCH candidate resource set for sending HARQ information corresponding to the traffic channel PSSCH. at this time, The value is 1 or the number of subchannels occupied by the PSSCH.
  • the candidate PSFCH resource set for sending coordination information corresponding to the traffic channel PSSCH is the candidate PSFCH resource set corresponding to the first sub-channel occupied by the PSSCH; if the value is the number of sub-channels occupied by the PSSCH, then The candidate PSFCH resource representing the transmission coordination information corresponding to the traffic channel PSSCH is the candidate PSFCH resource set corresponding to all sub-channels occupied by the PSSCH.
  • FIG. 5 is a schematic diagram showing the difference between the first subset and the second subset.
  • the candidate PSFCH resource set for sending HARQ information corresponding to the traffic channel PSSCH is the candidate PSFCH resource set corresponding to the first sub-channel occupied by the traffic channel PSSCH, and the candidate PSFCH resource set corresponding to the traffic channel PSSCH for sending cooperation information.
  • the PSFCH resource set is outside the first subchannel occupied by the traffic channel PSSCH
  • the candidate PSFCH resource set for sending HARQ information corresponding to the service channel PSSCH is the candidate PSFCH resource set corresponding to the first sub-channel occupied by the service channel PSSCH (ie, sub-channel 1).
  • the candidate PSFCH resource set used for sending the cooperation information is the candidate PSFCH resource set corresponding to the 2nd to 3rd subchannels (ie, subchannel 3 and subchannel 4) occupied by the traffic channel PSSCH.
  • FIG. 6 is a schematic diagram illustrating the location of PSFCH resources determined for sending coordination information in the same scenario as the first subset and the second subset.
  • the specific method for the terminal to determine the PSFCH dedicated resource for sending the cooperation information according to the terminal ID in the set of standby PSFCH resources for sending the cooperation information is:
  • the terminal is in the standby PSFCH resource set
  • the resource index of the PSFCH resource selected for sending coordination information among the PSFCH resources is:
  • the P ID is the sending terminal ID provided by the sending UE in the side link control information
  • the M ID is the member ID of the receiving UE.
  • the M ID is only used in the multicast scenario where each receiving terminal needs to feed back ACK/NACK information.
  • Scenario, O is an offset used to distinguish it from the PSFCH resource for sending HARQ information.
  • the terminal can obtain the value of 0 through high layer signaling or side link control signaling SCI.
  • the parameter with the above is the same parameter, and the value is the number of sub-channels occupied by PSSCH.
  • the position of the determined PSFCH resource for sending HARQ information in the candidate resource set (second subset) is shown in Figure 6, according to the formula
  • the determined position of the PSFCH resource used for sending coordination information in the candidate resource set (the first subset) is offset by O compared to the position of the PSFCH resource used for sending HARQ information.
  • the dedicated resource index may be in is the number of dedicated resources in the standby PSFCH resource set corresponding to PSSCH for sending coordination information
  • PID is the sending terminal ID provided by the originating UE in the side link control information
  • M ID is the member ID of the receiving UE
  • M ID is only used for In the multicast scenario, each receiving terminal needs to feed back ACK/NACK information.
  • the mapping relationship between the traffic channel PSSCH and the corresponding PSFCH resource for sending coordination information can multiplex the traffic channel PSSCH and the corresponding transmission.
  • the mapping relationship between PSFCH resources of HARQ information It should be noted that, if the newly configured PSFCH resource does not carry HARQ information, there is no need to restrict the use of different PSFCH resources for the PSFCH resource for sending coordination information and the PSFCH resource for sending HARQ information corresponding to the traffic channel PSSCH.
  • multiple parameters can be configured and/or multiple offsets 0 are used to indicate multiple PSFCH resources, and are used to indicate coordination information of more than 1 bit.
  • T is an integer greater than or equal to 1 parameters respectively Corresponding to T spare PSFCH resource sets for sending coordination information respectively
  • the t (1 ⁇ t ⁇ T)th candidate PSFCH resource set for sending cooperation information can carry Z t bit of cooperation information, where Z t represents the t (1 ⁇ t ⁇ T)th candidate resource set for sending cooperation information Configure the number corresponding to the offset O.
  • the position corresponding to the t-th candidate PSFCH resource set for sending cooperation information may be the t-th occupied by PSSCH.
  • the number of PSFCH resources in the t-th standby PSFCH resource set is:
  • FIG. 7 is a schematic diagram of defining multiple spare PSFCH resource sets for transmitting coordination information.
  • the PSFCH resource corresponding to the service channel PSSCH for sending HARQ information is the first sub-channel (ie sub-channel 1) occupied by the service channel PSSCH to one PSFCH resource
  • the PSSCH corresponding to the service channel is used for sending
  • the two PSFCH resource sets of the cooperation information are the candidate PSFCH resource sets corresponding to the second sub-channel occupied by the traffic channel PSSCH (ie, sub-channel 2), and the third sub-channel occupied by the traffic channel PSSCH (ie, sub-channel 3)
  • the corresponding standby PSFCH resource set That is to say, there are multiple spare PSFCH resource sets for sending cooperation information, or in other words, there are multiple first subsets in the foregoing embodiments.
  • T parameters and the t (1 ⁇ t ⁇ T)th standby PSFCH resource set for sending coordination information are Obtained through high-level signaling or SCI information.
  • the total number of PSFCH resources for the terminal to send the coordination information according to the configuration can be
  • Each PSFCH can carry 1 bit of information, and the corresponding total number of bits of cooperation information that can be indicated is Q.
  • FIG. 8 is a flowchart of an embodiment in which the method of the present application is applied to a terminal device.
  • the method described in any one of the embodiments of the present application, used in a terminal device includes the following steps:
  • Step 201 The terminal device detects the transmission resources occupied by the data sent by the first terminal and the second terminal device, and determines whether there is a conflict;
  • the terminal device is a third terminal, for example, the terminal A in FIGS. 1-2 .
  • the first terminal may be, for example, terminal B in Figs. 1-2; the second terminal, for example, may be terminal C in Figs. 1-2.
  • Step 202 The terminal device determines the dedicated resource according to the acquired indication information for determining the standby PSFCH resource set and the dedicated resource index;
  • the third terminal determines that the method for sending the PSFCH resource of the coordination information is the following mode 1 or mode 2.
  • Manner 1 The third terminal determines, in the PSFCH resource configured by the original system, a PSFCH resource at a different location from the original PSFCH resource for sending the HARQ information, for sending the coordination information.
  • Manner 2 The third terminal uses the newly configured PSFCH resource to determine that the PSFCH resource is bound to the sending PSSCH resource to send the coordination information.
  • the third terminal acquires the indication information for determining the standby PSFCH resource set and the dedicated resource index, where the indication information includes at least one of the following: a subchannel parameter and an offset parameter.
  • the terminal device obtains the indication information for determining the standby PSFCH resource set and the dedicated resource index by at least one of the following ways: high layer signaling, physical layer signaling, and writing device.
  • the high-level signaling may be the high-level signaling on the communication link or the side link between the base station and the terminal
  • the physical layer signaling may be the physical layer signaling on the communication link or the side link between the base station and the terminal
  • the writing device means that the relevant parameters can be directly written to the device based on the protocol.
  • Step 203 The terminal device determines the specific content indicated in the collaboration information.
  • the third terminal can determine specific content in the collaboration information, including at least one of the following information:
  • the HARQ information of the PSSCH is repeatedly transmitted, that is, the HARQ information corresponding to the PSSCH is repeatedly transmitted;
  • the indication information of the PSSCH resource conflict can be used to indicate: there is a resource conflict, the type, quantity or identification of the conflicting resources, and resource reselection is recommended or required;
  • the reserved PSSCH resource conflict indication information can be used to indicate that there is a resource conflict, the type, quantity or identification of the conflicting resources, and resource reselection is recommended or required; the reserved PSSCH here
  • the resource refers to the reserved PSSCH resource indicated by the corresponding PSCCH of the PSSCH.
  • Step 204 The terminal device sends cooperation information to the first terminal and/or the second terminal through the dedicated resource.
  • step 204 the third terminal sends the cooperation information through the dedicated resource.
  • FIG. 8 is a schematic diagram of an embodiment of a terminal device of the present invention.
  • the present application also proposes a communication device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the same implementation as the present application.
  • a communication device comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the same implementation as the present application.
  • the communication device may be a first terminal, a second terminal or a third terminal, which are collectively referred to as terminal devices.
  • the terminal device 400 (ie, UE) includes at least one processor 401 , memory 402 , user interface 403 and at least one network interface 404 .
  • the various components in the terminal device 400 are coupled together by a bus system.
  • the bus system is used to realize the connection communication between these components.
  • the bus system includes data bus, power bus, control bus and status signal bus.
  • User interface 403 may include a display, keyboard, or pointing device, such as a mouse, trackball, touch pad or touch screen, and the like.
  • Memory 402 stores executable modules or data structures.
  • An operating system and application programs may be stored in the memory.
  • the operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various services and processing hardware-based tasks.
  • Applications include various applications, such as media players, browsers, etc., for implementing various application services.
  • the memory 402 includes a computer program for executing any one of the embodiments of the present application, and the computer program is executed or changed on the processor 401 .
  • the memory 402 includes a computer-readable storage medium, and the processor 401 reads the information in the memory 402 and completes the steps of the above method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 401, each step of the method embodiment described in any one of the foregoing embodiments is implemented.
  • the processor 401 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the method of the present application may be completed by an integrated logic circuit of hardware in the processor 401 or an instruction in the form of software.
  • the processor 401 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.
  • 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 invention 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.
  • embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects.
  • the apparatus of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.
  • the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • the present application further provides a computer-readable medium, where a computer program is stored on the computer-readable medium, and when the computer program is executed by a processor, the steps of the method described in any one of the embodiments of the present application are implemented.
  • the memory 303, 402 of the present invention may comprise non-persistent memory in a computer readable medium, random access memory (RAM) and/or non-volatile memory, etc., such as read only memory (ROM) or flash memory ( flash RAM).
  • Computer-readable media includes both persistent and non-permanent, removable and non-removable media, and storage of information may be implemented by any method or technology.
  • Information may be computer readable instructions, data structures, modules of programs, or other data.
  • Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
  • computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.
  • the present application further proposes a mobile communication system, which includes any embodiment of the terminal device in the present application.

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Abstract

本申请公开了一种边链路通信终端设备协作信息指示方法，包括以下步骤：确定与PSSCH对应的备用PSFCH资源集，包含用于发送协作信息的专用资源；所述专用资源，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源占用不同的资源位置；按专用资源索引，在所述备用PSFCH资源集中，指示专用资源的位置，所述协作信息，用于表示第一终端设备和第二终端设备发送的PSSCH所占用的传输资源存在冲突，或者，用于表示第三终端设备发出的HARQ重传信息。本申请还包含实现所述方法的设备。本申请解决现有技术无法发送协作信息的问题。

Description

一种边链路通信终端设备协作信息指示方法和设备
本申请要求于2021年04月02日提交中国国家知识产权局、申请号为202110361298.9、发明名称为“一种边链路通信终端设备协作信息指示方法和设备”的中国专利申请的优先权，该在先申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信技术领域，尤其涉及一种边链路通信的应用场景中，终端设备间协作通信的指示方法和设备。
背景技术
在终端间通信中，需要终端A向终端B发送协作信息，以帮助终端B选择合适的传输资源，避免与其他终端产生资源碰撞。终端A可以是终端B发送信息的目的接收终端，也可以是其他终端。可能的方案是，终端A向终端B发送协作信息可以由边链路控制信息(SCI)、MAC CE、PC5-RRC或者PSFCH承载。其中PSFCH承载协作信令具有低时延的优势，同时支持无信道侦听功能的终端向其他终端提供协作信息。
在目前的终端间通信的PSFCH信道设计具体方式为通过高层信令为一个资源池配置周期性的PSFCH资源，然后将一个时隙上的PSFCH资源与多个时隙上的子信道建立映射关系，令每个时隙上的每个子信道映射到一组PSFCH资源中。
由于目前的PSFCH资源设计仅适用于终端反馈1bit的HARQ信息。如何发送协作信息，目前还没有解决方案。
发明内容
本申请提出一种边链路通信终端设备协作信息指示方法和设备，旨在解决现有技术无法发送协作信息的问题。
本申请实施例提供一种边链路通信终端设备协作信息指示方法，包括以下步骤：
确定与PSSCH对应的备用PSFCH资源集，包含用于传送协作信息的专用资源；所述专用资源，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源占用不同的资源位置；
按专用资源索引，在所述备用PSFCH资源集中，指示专用资源的位置，
所述协作信息，用于表示第一终端设备和第二终端设备发送的PSSCH所占用的传输资源存在冲突，或者，用于表示第三终端设备发出的HARQ重传信息。
优选地，所述专用资源索引，包含所述PSSCH和所述专用资源的映射关系。
优选地，所述协作信息，包含以下至少一种信息：
PSSCH的HARQ信息重复传输；
PSSCH资源冲突的指示信息；
预留PSSCH资源冲突的指示信息。
作为本申请可选择的一个实施例，所述备用PSFCH资源集，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集占用不同的资源位置。
所述不同的资源位置，满足以下至少一种特征：不同时隙；不同频段；同一时隙的不同符号；不同循环偏移。
作为本申请可选择的另一个实施例，所述备用PSFCH资源集，是系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集的子集；
所述专用资源和发送HARQ信息的资源对应于PSSCH不同子信道，所述专用资源索引为
Figure PCTCN2022070500-appb-000001
其中
Figure PCTCN2022070500-appb-000002
为PSSCH对应的用于发送协作信息的备用PSFCH资源的数量，P ID为发送终端设备ID，M ID为接收终端设备ID。
或者，所述专用资源和发送HARQ信息的资源对应于PSSCH相同子信道或不同子信道，所述专用资源索引为
Figure PCTCN2022070500-appb-000003
其中
Figure PCTCN2022070500-appb-000004
为PSSCH对应的用于发送协作信息的备用PSFCH资源的数量，P ID为发送终端设备ID，M ID为接收终端设备ID，O为偏移量。
在组播场景，用本申请任意一个方法实施例，进一步地，所述备用PSFCH资源集为多。优选地，在本申请的至少一个实施例中，所述偏移量为多个。
优选地，在本申请的任意一个实施例中，所述PSSCH资源冲突的指示信息和HARQ信息联合指示，当所述PSSCH资源冲突的指示信息缺省时表示无资源冲突；当所述PSSCH资源冲突的指示信息为NACK时，表示有资源冲突；当所述HARQ信息缺省时，表示PSSCH非正确接收。
进一步地，本申请任意一项实施例所述方法，用于终端设备，包含以下步骤：
所述终端设备，检测第一终端和第二终端设备发送的数据所占用的传输资源，确定是否存在冲突；
所述终端设备，根据获取的用于确定备用PSFCH资源集和专用资源索引的指示信息，确定专用资源；
所述终端设备，确定协作信息中指示的具体内容，通过所述专用资源，向所述第一终端和/或第二终端发送协作信息。
进一步地，所述用于确定备用PSFCH资源集和专用资源索引的指示信息，包含以下至少一种：子信道参数、偏移量参数。
本申请还提出一种通信设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如本申请任意一项实施例所述方法的步骤。
本申请还提出一种计算机可读介质，所述计算机可读介质上存储计算机程序，所述计算机程序被处理器执行时实现如本申请任意一项实施例所述的方法的步骤。
本申请实施例采用的上述至少一个技术方案能够达到以下有益效果：
本发明的方法支持终端采用PSFCH信道发送终端间通信的协作信息，有利于降低协作信息的发送时延和资源开销。同时该方法对用于发送HARQ信息的PSFCH资源不产生影响，通过对HARQ信息和协作信息的联合内容设计，可以进一步降低PSFCH资源开销。
附图说明
图1为边链路通信资源冲突场景1；
图2为边链路通信资源冲突场景2；
图3为本发明方法实施例流程图；
图4为边链路信令资源和PSSCH映射关系示意图；
图5为第一子集和第二子集不同时的专用资源示意图；
图6为第一子集和第二子集相同时的专用资源示意图；
图7为组播场景中定义多个专用PSSCH资源集示意图；
图8为本申请方法用于终端设备的实施例流程图；
图9为本发明终端设备的结构示意图。
具体实施方式
本发明提供一种终端设备间协作通信指示方法与设备，应用在边链路通信中，在该方法中主要构思是：
终端确定发送协作信息的PSFCH资源，其中确定PSFCH资源的方法是避免发送协作信息的资源与发送HARQ信息的资源发生冲突。在原系统配置的PSFCH资源中确定出与原发送HARQ信息的PSFCH资源不同位置的PSFCH资源用于发送协作信息，或者，利用新配置PSFCH资源确定出与发送PSSCH资源绑定PSFCH资源发送协作信息。进而，终端确定协作信息中指示的具体内容，具体内容与PSSCH对应的HARQ信息进行联合设计，以减少PSFCH资源的开销。
以下结合附图，详细说明本申请各实施例提供的技术方案。
利用PSFCH承载协作信息可以适用于以下场景：
图1为边链路通信资源冲突场景1。终端A为终端B和终端C发送数据的接收终端，终端A检测到终端B和终端C向终端A发送数据占用的传输资源产生冲突，可以通过PSFCH向终端B发送协作信息指示该冲突，令终端B进行资源重选。
图2为边链路通信资源冲突场景2。终端A为终端B和终端C的一个周 围终端，终端A通过信道侦听检测到终端B和终端C向终端D发送数据占用的传输资源产生冲突，可以通过PSFCH向终端B发送协作信息指示该冲突，令终端B进行资源重选。
图3为本发明方法实施例流程图。
本申请实施例提供一种边链路通信终端设备协作信息指示方法，包括以下步骤101～103：
步骤101、确定与PSSCH对应的备用PSFCH资源集，包含用于发送协作信息的专用资源。
所述协作信息，用于表示第一终端设备和第二终端设备发送的PSSCH所占用的传输资源存在冲突，或者，用于表示第三终端设备发出的HARQ重传信息。
其中，用于发送协作信息的专用资源与用于发送HARQ信息的资源不同。在此前提下，所述备用PSFCH资源集与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集占用不同的资源位置，或者，所述备用PSFCH资源集是系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集的子集。
作为本申请可选择的一个实施例，所述备用PSFCH资源集，与协作信息对应的业务信道PSSCH的资源位置存在对应关系，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集占用不同的资源位置。所述不同的资源位置，满足以下至少一种特征：不同时隙；不同频段；同一时隙的不同符号；同一符号和频段、不同循环偏移。所述不同资源位置，可以通过系统新配置PSFCH资源的方式，配置与用于发送HARQ信息的PSFCH资源不同资源位置的PSFCH资源用于发送协作信息。
作为本申请可选择的另一个实施例，所述备用PSFCH资源集，与协作信息对应的业务信道PSSCH的资源位置存在对应关系，是系统配置的用于发送HARQ信息的PSFCH资源集的子集，为第一子集。与PSSCH业务信道对应的用于实际发送HARQ信息的PSFCH资源集，同样是系统配置的用于发送 HARQ信息的PSFCH资源集的子集，为第二子集。所述第一子集与第二子集不同，或者相同。所述第一子集与第二子集不同表示第一子集与第二子集占用不同资源位置，所述不同的资源位置，满足以下至少一种特征：不同时隙；不同频段；同一时隙的不同符号；同一符号和频段、不同循环偏移。进一步地，所述第一子集与第二子集不同，可以通过PSSCH占用的子信道中不同子信道对应的PSFCH资源集分别作为PSSCH对应的用于发送协作信息的PSFCH集、与PSSCH对应的用于发送HARQ信息的PSFCH资源集。所述第一子集与第二子集相同，则表示PSSCH占用的子信道中相同的一个或多个子信道对应的PSFCH资源集作为PSSCH对应的用于发送协作信息的PSFCH集、以及与PSSCH对应的用于发送HARQ信息的PSFCH资源集。
步骤102、按专用资源索引，在所述备用PSFCH资源集中，确定用于发送与PSSCH对应的协作信息的专用资源位置。
所述备用PSFCH资源集中，用于发送与PSSCH对应的协作信息的专用资源位置，与用于发送该PSSCH对应的HARQ信息的PSFCH资源占用不同的资源位置。
优选地，所述专用资源索引，包含所述PSSCH和所述专用资源的映射关系。
如果备用PSFCH资源集是系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集的子集，则本申请中提出的业务信道PSSCH与对应的发送协作信息的PSFCH资源之间的映射关系如下：
所述专用资源索引为
Figure PCTCN2022070500-appb-000005
其中
Figure PCTCN2022070500-appb-000006
为PSSCH对应的用于发送协作信息的备用PSFCH资源集中专用资源数量，其中P ID为PSSCH的发端UE在边链路控制信息中提供的发送终端设备ID，M ID为PSSCH接收终端设备ID、一般也指在组播场景中收端UE的成员ID，O为偏移量。当所述第一子集与第二子集不同时，所述偏移量O可以取值为0。
进一步可选的，对于组播通信场景，组播成员都反馈ACK/NACK场景中，可能存在M ID1＝M ID2+O，此时如果发送HARQ信息的候选PSFCH资源集与发 送协作信息的候选PSFCH资源集相同时，会产生M ID1针对PSSCH检测反馈的HARQ信息与M ID1针对PSSCH发送的协作信息产生碰撞，可以配置要求偏移量O大于组员数，即O≥max(M ID)，减少此类碰撞的产生。
步骤103、传送所述协作信息。
优选地，所述协作信息的内容，包含以下至少一种信息：
PSSCH的HARQ信息重复传输，即重复传输PSSCH对应的HARQ信息；
PSSCH资源冲突的指示信息，可用于表示：存在资源冲突，冲突的资源的种类、数量或标识，建议或要求资源重选；
预留PSSCH资源冲突的指示信息，可用于表示：存在资源冲突，冲突的资源的种类、数量或标识，建议或要求资源重选；此处的预留PSSCH资源，是指PSSCH的对应PSCCH指示的预留PSSCH资源。
具体协作信息指示上述哪一种类型的信息可以通过高层信令指示或者SCI指示。
进一步可选的，协作信息指示上述哪一种类型的信息也可以与协作信息比特总数相关。
以协作信息仅为1bit，且为对应PSSCH的HARQ信息的重复传输举例。如果对应PSSCH的HARQ信息为ACK，则该1bit信息对应为ACK，如果对应PSSCH的HARQ信息为NACK，则该1bit信息对应为NACK。如果对应PSSCH仅反馈NACK信息，则仅当HARQ信息为NACK时，该1bit信息对应为NACK。如果该1bit信息为对应PSSCH资源冲突情况：
进一步可选的，协作信息具体内容与PSSCH对应的HARQ信息进行联合设计，以减少PSFCH资源的开销。
以协作信息仅为1bit信息，且为对应PSSCH资源冲突指示举例。一般来讲，对应PSSCH资源冲突时协作信息反馈NACK，否则反馈ACK。当与HARQ信息联合设计，能够减少PSFCH资源开销。
例如，当所述PSSCH资源冲突的指示信息缺省时表示无资源冲突；当所述PSSCH资源冲突的指示信息为NACK时，表示有资源冲突；当所述HARQ 信息缺省时，表示PSSCH非正确接收。
例如可以进行如下表的联合设计。
表1、PSSCH HARQ信息和PSSCH资源冲突信息联合指示
Figure PCTCN2022070500-appb-000007
进一步可选的，当协作信息包含多个bit信息时，如果指示资源冲突，可以用于对应PSSCH对应的PSCCH指示的预留的多个PSSCH资源冲突情况，或者用于指示对应PSSCH的时频域冲突情况，如包含冲突资源的标识、种类、数量等，进一步地，还可以指示接收该协作信息的发送终端针对该PSSCH进行时域、或频域、或PSSCH哪一个或者一组子信道的资源重选。例如2bit的协作信息，检测到第1bit为NACK，第2bit未发送时，表示资源冲突且表示时域或频域重选都可以；检测到第1bit为NACK，第2bit发送为NACK时，表示资源冲突且表示时域重选；检测到第1bit为NACK，第2bit发送为ACK时，表示资源冲突且表示频域重选。又例如2bit的协作信息，“00”表示PSSCH第1个或第1组子信道资源冲突；“01”表示PSSCH第2个或第2组子信道资源冲突；“10”表示PSSCH第3个或第3组子信道资源冲突；“11”表示PSSCH第4个或第4组子信道资源冲突。
协作信息可以通过内容的设计减少PSFCH资源的发送，具体减少方法可以参考举例，这里不再赘述。
图4为边链路信令资源和PSSCH映射关系示意图。
此处的“边链路信令资源”，是指用于发送HARQ信息的PSFCH资源，或者，用于发送协作信息的PSFCH资源。
根据现有标准3GPP TS 38.213，目前的终端间通信的PSFCH信道设计具体方式为通过高层信令为一个资源池配置周期性的PSFCH资源，然后将一个时隙上的PSFCH资源与多个时隙上的子信道建立映射关系，令每个时隙上的每个子信道映射到一组PSFCH资源中，业务信道PSSCH对应的PSFCH候选资源，即为PSSCH占用的第一个子信道或者PSSCH占用的所有子信道对应的PSFCH资源，然后根据PSSCH的发送终端ID和接收终端的组员ID确定出一个PSFCH资源反馈1bit的HARQ信息，如图4所示。
在系统配置的PSFCH资源中确定所述第二子集的具体方式为：根据系统配置的PSFCH资源，假设一个时隙上配置的PSFCH资源占用的PRB数为
Figure PCTCN2022070500-appb-000008
与
Figure PCTCN2022070500-appb-000009
个时隙上的N subch个子信道关联，即每个子信道将对应
Figure PCTCN2022070500-appb-000010
个PSFCH PRB。第i个时隙上的第j个子信道对应的
Figure PCTCN2022070500-appb-000011
个PSFCH PRB在
Figure PCTCN2022070500-appb-000012
中的位置为
Figure PCTCN2022070500-appb-000013
Figure PCTCN2022070500-appb-000014
其中
Figure PCTCN2022070500-appb-000015
Figure PCTCN2022070500-appb-000016
由于PSFCH基于序列产生，还可以通过循环移位的方式进行资源复用，假设一个PSFCH PRB上复用的循环移位对为
Figure PCTCN2022070500-appb-000017
则实际上一个子信道对应的候选PSFCH资源集中PSFCH资源个数为
Figure PCTCN2022070500-appb-000018
一个业务信道PSSCH对应的发送HARQ信息的候选PSFCH资源个数为：
Figure PCTCN2022070500-appb-000019
如果此处的候选PSFCH资源用于发送HARQ信息，其中
Figure PCTCN2022070500-appb-000020
为由高层配置的一个参数，取值为1或者为PSSCH占用的子信道数。如果取值为1，则表示该业务信道PSSCH对应的候选PSFCH资源为PSSCH占用的第一个子信道对应的候选PSFCH资源集；如果取值为PSSCH占用的子信道数，则表示该业务信道PSSCH对应的候选PSFCH资源集为PSSCH占用的所有子信道对应的候选PSFCH资源集的并集。
在系统配置的PSFCH资源中确定所述第一子集的具体方式为：根据系统配置的PSFCH资源，假设一个时隙上配置的PSFCH资源占用的PRB数为
Figure PCTCN2022070500-appb-000021
与
Figure PCTCN2022070500-appb-000022
个时隙上的N subch个子信道关联，即每个子信道将对应
Figure PCTCN2022070500-appb-000023
个PSFCH PRB。第i个时隙上的第j个子信道对应的
Figure PCTCN2022070500-appb-000024
个PSFCH PRB在
Figure PCTCN2022070500-appb-000025
中的PRB位置为
Figure PCTCN2022070500-appb-000026
Figure PCTCN2022070500-appb-000027
其中
Figure PCTCN2022070500-appb-000028
j＝1,2,3,…,N subch。由于PSFCH基于序列产生，还可以通过循环移位的方式进行资源复用，假设一个PSFCH PRB上复用的循环移位对为
Figure PCTCN2022070500-appb-000029
则实际上一个子信道对应的候选PSFCH资源个数为
Figure PCTCN2022070500-appb-000030
由此，一个业务信道PSSCH对应的用于发送协作信息的备用PSFCH资源集中专用资源个数为：
Figure PCTCN2022070500-appb-000031
其中参数
Figure PCTCN2022070500-appb-000032
为配置参数，用于定义发送协作信息中备用PSFCH资源集中专用资源数量。根据所述第一子集与第二子集是否相同，对应的
Figure PCTCN2022070500-appb-000033
与
Figure PCTCN2022070500-appb-000034
数值相同或者不同，取值大于等于1。如果第一子集与第二子集不同，当PSSCH占用子信道数
Figure PCTCN2022070500-appb-000035
大于1，PSSCH占用子信道中第一个子信道对应的PSFCH资源集对应为PSSCH对应的发送HARQ信息的PSFCH资源集时，即
Figure PCTCN2022070500-appb-000036
且
Figure PCTCN2022070500-appb-000037
此时第一子集可以与第二子集不同，参数
Figure PCTCN2022070500-appb-000038
与上述
Figure PCTCN2022070500-appb-000039
可配置为不同的参数；否则其他情况下，第一子集与第二子集相同，参数
Figure PCTCN2022070500-appb-000040
与上述
Figure PCTCN2022070500-appb-000041
为同一参数，即取值相同。进一步地，终端可以通过高层信令或者边链路控制信令SCI获取
Figure PCTCN2022070500-appb-000042
的取值。
如果参数
Figure PCTCN2022070500-appb-000043
与上述参数
Figure PCTCN2022070500-appb-000044
为同一参数，即共用一个配置参数来表示，则该业务信道PSSCH对应的用于发送协作信息的候选PSFCH资源集与该业务信道PSSCH对应的用于发送HARQ信息的PSFCH候选资源集相同。此时，
Figure PCTCN2022070500-appb-000045
取值为1或者为PSSCH占用的子信道数。如果取值为1，则表示该业务信道PSSCH对应的发送协作信息的候选PSFCH资源集为PSSCH占用的第一个子信道对应的候选PSFCH资源集；如果取值为PSSCH占用的子信道数，则表示该业务信道PSSCH对应的发送协作信息的候选PSFCH资源为PSSCH占用的所有子信道对应的候选PSFCH资源集。
图5为所述第一子集与第二子集不同示意图。
此时
Figure PCTCN2022070500-appb-000046
与
Figure PCTCN2022070500-appb-000047
作为各自独立的两个配置参数，有
Figure PCTCN2022070500-appb-000048
Figure PCTCN2022070500-appb-000049
可以解释该业务信道PSSCH对应的用于发送HARQ信息的候选PSFCH资源集为该业务信道PSSCH占用的第一个子信道对应的候选PSFCH资源集，该业务信道PSSCH对应的用于发送协作信息的候选PSFCH资源集为该业务信道PSSCH占用的第一个子信道之外的
Figure PCTCN2022070500-appb-000050
个子信道对应的候选PSFCH资源集，例如占用的第
Figure PCTCN2022070500-appb-000051
个子信道对应的候选PSFCH资源集。
举例如图5所示，假设PSSCH占用3个子信道，
Figure PCTCN2022070500-appb-000052
与
Figure PCTCN2022070500-appb-000053
参数不同，该业务信道PSSCH对应的用于发送HARQ信息的候选PSFCH资源集为该业务信道PSSCH占用的第一个子信道(即子信道1)对应的候选PSFCH资源集，该业务信道PSSCH对应的用于发送协作信息的候选PSFCH资源集为该业务信道PSSCH占用的第2～3个子信道(即子信道3和子信道4)对应的候选PSFCH资源集。
图6为所述第一子集与第二子集相同场景下确定用于发送协作信息的PSFCH资源位置示意图。
终端在发送协作信息的备用PSFCH资源集中，根据终端ID确定出发送协作信息的PSFCH专用资源的具体方式为：
终端在备用PSFCH资源集中
Figure PCTCN2022070500-appb-000054
个PSFCH资源中选择用于发送协作信息的PSFCH资源的资源索引为
Figure PCTCN2022070500-appb-000055
其中P ID为发端UE在边链路控制信息中提供的发送终端ID，M ID为收端UE的成员ID，M ID仅用于在组播场景每个接收终端都需要反馈ACK/NACK信息的场景,O为用于与发送HARQ信息的PSFCH资源进行区分的一个偏移量。其中终端可以通过高层信令或者边链路控制信令SCI获取O取值。
举例如图6所示，假设所述第一子集与第二子集相同，参数
Figure PCTCN2022070500-appb-000056
与上述
Figure PCTCN2022070500-appb-000057
为同一参数，取值为PSSCH占用的子信道数。根据公式
Figure PCTCN2022070500-appb-000058
Figure PCTCN2022070500-appb-000059
确定出的用于发送HARQ信息的PSFCH资源在候选资源集(第二子集)中位置如图6所示，根据公式
Figure PCTCN2022070500-appb-000060
确定出 的用于发送协作信息的PSFCH资源在候选资源集(第一子集)中位置相比用于发送HARQ信息的PSFCH资源位置偏移O。
进一步可选的，如果所述第一子集和第二子集不同，即PSSCH对应的用于发送协作信息的PSFCH集，与PSSCH对应的用于发送HARQ信息的PSFCH资源集，为PSSCH占用的子信道中不同子信道对应的PSFCH资源集，所述专用资源索引可以为
Figure PCTCN2022070500-appb-000061
其中
Figure PCTCN2022070500-appb-000062
为PSSCH对应的用于发送协作信息的备用PSFCH资源集中专用资源数量，P ID为发端UE在边链路控制信息中提供的发送终端ID，M ID为收端UE的成员ID，M ID仅用于在组播场景每个接收终端都需要反馈ACK/NACK信息的场景。
进一步可选的，如果备用PSFCH资源集在步骤101中所述新配置的PSFCH资源上，业务信道PSSCH与对应的发送协作信息的PSFCH资源之间的映射关系可以复用业务信道PSSCH与对应的发送HARQ信息的PSFCH资源之间的映射关系。需要说明的是，新配置的PSFCH资源上如果不承载HARQ信息，则不需要限制业务信道PSSCH对应发送协作信息的PSFCH资源与发送HARQ信息的PSFCH资源采用不同的PSFCH资源。
结合前述各实施例，根据步骤101～102，进一步可选的，可以配置多个参数
Figure PCTCN2022070500-appb-000063
和/或多个偏移量O用于指示多个PSFCH资源，用于指示1bit以上的协作信息。
1)对于配置多个参数
Figure PCTCN2022070500-appb-000064
的进一步说明如下：例如配置T(T为大于等于1的整数)个参数
Figure PCTCN2022070500-appb-000065
分别为
Figure PCTCN2022070500-appb-000066
分别对应T个用于发送协作信息的备用PSFCH资源集，该场景仅适用于所述第一子集与第二子集不同，即
Figure PCTCN2022070500-appb-000067
且
Figure PCTCN2022070500-appb-000068
的场景，其他情况下T＝1，
Figure PCTCN2022070500-appb-000069
与
Figure PCTCN2022070500-appb-000070
取值相同，为同一参数。假设第t(1≤t≤T)个发送协作信息的备选PSFCH资源集中可以承载Z tbit的协作信息，其中Z t表示发送协作信息的第t(1≤t≤T)个候选资源集中对应偏移量O配置个数。发送协作信息的第t个候选PSFCH资源集对应的位置可以为PSSCH占用的第
Figure PCTCN2022070500-appb-000071
子信道对应的候选PSFCH资源集。第t个备用PSFCH资源集中PSFCH资源个数为：
Figure PCTCN2022070500-appb-000072
图7为定义多个用于发送协作信息的备用PSFCH资源集示意图。
假设如图7所示，假设PSSCH占用3个子信道，
Figure PCTCN2022070500-appb-000073
Figure PCTCN2022070500-appb-000074
与
Figure PCTCN2022070500-appb-000075
参数不同，该业务信道PSSCH对应的用于发送HARQ信息的PSFCH资源为该业务信道PSSCH占用的第一个子信道(即子信道1)对一个的PSFCH资源，该业务信道PSSCH对应的用于发送协作信息的2个PSFCH资源集分别为该业务信道PSSCH占用的第2个子信道(即子信道2)对应的候选PSFCH资源集，以及该业务信道PSSCH占用的第3个子信道(即子信道3)对应的备用PSFCH资源集。也就是说，存在多个用于发送协作信息的备用PSFCH资源集，或者说，前述实施例所述第一子集有多个。
对于配置多个偏移量O的进一步说明如下：例如对第t(1≤t≤T)个发送协作信息的候选PSFCH资源集配置Z t个偏移量分别为
Figure PCTCN2022070500-appb-000076
终端在第t个发送协作信息的备用PSFCH资源集中
Figure PCTCN2022070500-appb-000077
个候选PSFCH资源中选择用于发送协作信息的
Figure PCTCN2022070500-appb-000078
个PSFCH资源的索引分别为
Figure PCTCN2022070500-appb-000079
其中
Figure PCTCN2022070500-appb-000080
进一步地，T个参数
Figure PCTCN2022070500-appb-000081
以及第t(1≤t≤T)个发送协作信息的备用PSFCH资源集中
Figure PCTCN2022070500-appb-000082
中配置的Z t个偏移量分别为
Figure PCTCN2022070500-appb-000083
通过高层信令或者SCI信息获取。
由此，可以终端根据配置发送协作信息的PSFCH资源总数
Figure PCTCN2022070500-appb-000084
每个PSFCH可以承载1bit的信息，相应的可以指示的协作信息比特数总数为Q。
图8为本申请方法用于终端设备的实施例流程图。
进一步地，本申请任意一项实施例所述方法，用于终端设备，包含以下步骤：
步骤201、所述终端设备，检测第一终端和第二终端设备发送的数据所占用的传输资源，确定是否存在冲突；
所述终端设备，为第三终端，例如可以是图1～2中的终端A。
此处，第一终端，例如可以是图1～2中的终端B；第二终端，例如可以是 图1～2中的终端C。
步骤202、所述终端设备，根据获取的用于确定备用PSFCH资源集以及所述专用资源索引的指示信息确定所述专用资源；
在该步骤中，第三终端确定发送协作信息的PSFCH资源方法为如下所述方式1或者方式2。
方式1：第三终端在原系统配置的PSFCH资源中确定出与原发送HARQ信息的PSFCH资源不同位置的PSFCH资源用于发送协作信息。
方式2：第三终端利用新配置PSFCH资源确定出与发送PSSCH资源绑定PSFCH资源发送协作信息。
进一步地，第三终端获取所述用于确定备用PSFCH资源集以及所述专用资源索引的指示信息，该指示信息包含以下至少一种：子信道参数、偏移量参数。
终端设备通过以下至少一种方式获取所述用于确定备用PSFCH资源集和专用资源索引的指示信息：高层信令、物理层信令、写入设备。所述高层信令是可以是基站与终端间通信链路或者边链路上的高层信令，所述物理层信令可以是基站与终端间通信链路或者边链路上的物理层信令，所述写入设备指基于协议可以将相关参数直接写入设备。
步骤203、终端设备确定协作信息中指示的具体内容。
例如，第三终端能确定协作信息中的具体内容，包含以下至少一种信息：
第三终端发出的，PSSCH的HARQ信息重复传输，即重复传输PSSCH对应的HARQ信息；
第一终端和第二终端之间，PSSCH资源冲突的指示信息，可用于表示：存在资源冲突，冲突的资源的种类、数量或标识，建议或要求资源重选；
第一终端和第二终端之间，预留PSSCH资源冲突的指示信息，可用于表示：存在资源冲突，冲突的资源的种类、数量或标识，建议或要求资源重选；此处的预留PSSCH资源，是指PSSCH的对应PSCCH指示的预留PSSCH资源。
步骤204、所述终端设备，通过所述专用资源，向所述第一终端和/或第二终端发送协作信息。
在步骤204中，第三终端通过所述专用资源发送所述协作信息。
图8是本发明的终端设备的实施例示意图。
本申请还提出一种通信设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如本申请任意一项实施例所述方法的步骤。
所述通信设备，可以为第一终端、第二终端或第三终端，统称为终端设备。
终端设备400(即UE)包括至少一个处理器401、存储器402、用户接口403和至少一个网络接口404。终端设备400中的各个组件通过总线系统耦合在一起。总线系统用于实现这些组件之间的连接通信。总线系统包括数据总线，电源总线、控制总线和状态信号总线。
用户接口403可以包括显示器、键盘或者点击设备，例如，鼠标、轨迹球、触感板或者触摸屏等。
存储器402存储可执行模块或者数据结构。所述存储器中可存储操作系统和应用程序。其中，操作系统包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种业务以及处理基于硬件的任务。应用程序包含各种应用程序，例如媒体播放器、浏览器等，用于实现各种应用业务。
在本发明实施例中，所述存储器402包含执行本申请任意一个实施例的计算机程序，所述计算机程序在所述处理器401上运行或改变。
存储器402中包含计算机可读存储介质，处理器401读取存储器402中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器401执行时实现如上述任意一个实施例所述的方法实施例的各步骤。
处理器401可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，本申请方法的各步骤可以通过处理器401中的硬件的集成逻辑电路或者软件形式的指令完成。所述处理器401可以是通用处理器、数字信号处理器、专 用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。在一个典型的配置中，本申请的设备包括一个或多个处理器(CPU)、输入/输出用户接口、网络接口和存储器。
此外，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
因此，本申请还提出一种计算机可读介质，所述计算机可读介质上存储计算机程序，所述计算机程序被处理器执行时实现本申请任意一项实施例所述的方法的步骤。例如，本发明的存储器303，402可包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
基于图1～9的实施例，本申请还提出一种移动通信系统，包含本申请中任意一个终端设备的实施例。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (15)

  1. 一种边链路通信终端设备协作信息指示方法，其特征在于，包括以下步骤：
    确定与PSSCH对应的备用PSFCH资源集，包含用于传送协作信息的专用资源；所述专用资源，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源占用不同的资源位置；
    按专用资源索引，在所述备用PSFCH资源集中，指示专用资源的位置，
    所述协作信息，用于表示第一终端设备和第二终端设备发送的PSSCH所占用的传输资源存在冲突，或者，用于表示第三终端设备发出的HARQ重传信息。
  2. 如权利要求1所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述备用PSFCH资源集，与系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集占用不同的资源位置。
  3. 如权利要求1所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述专用资源索引，包含所述PSSCH和所述专用资源的映射关系。
  4. 如权利要求1或2所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述不同的资源位置，满足以下至少一种特征：
    不同时隙；
    不同频段；
    同一时隙的不同符号；
    不同循环偏移。
  5. 如权利要求1所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述协作信息，包含以下至少一种信息：
    PSSCH的HARQ信息重复传输；
    PSSCH资源冲突的指示信息；
    预留PSSCH资源冲突的指示信息。
  6. 如权利要求5所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述PSSCH资源冲突的指示信息和HARQ信息联合指示，当所述PSSCH资源冲突的指示信息缺省时表示无资源冲突；当所述PSSCH资源冲突的指示信息为NACK时，表示有资源冲突；当所述HARQ信息缺省时，表示PSSCH非正确接收。
  7. 如权利要求1所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述备用PSFCH资源集，是系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集的子集，
    所述专用资源和发送HARQ信息的资源对应于PSSCH不同子信道，
    所述专用资源索引为
    Figure PCTCN2022070500-appb-100001
    其中
    Figure PCTCN2022070500-appb-100002
    为PSSCH对应的用于发送协作信息的备用PSFCH资源的数量，P ID为发送终端设备ID，M ID为接收终端设备ID。
  8. 如权利要求1所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述备用PSFCH资源集，是系统配置的PSFCH资源中用于发送HARQ信息的PSFCH资源集的子集，
    所述专用资源和发送HARQ信息的资源对应PSSCH不同子信道或相同子信道，
    所述专用资源索引为
    Figure PCTCN2022070500-appb-100003
    其中
    Figure PCTCN2022070500-appb-100004
    为PSSCH对应的用于发送协作信息的备用PSFCH资源的数量，P ID为发送终端设备ID，M ID为接收终端设备ID，O为偏移量。
  9. 如权利要求7所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述备用PSFCH资源集为多个。
  10. 如权利要求8所述边链路通信终端设备协作信息指示方法，其特征在于，
    所述偏移量为多个。
  11. 如权利要求1～10任意一项所述方法，用于终端设备，其特征在于，包含以下步骤：
    所述终端设备，检测第一终端和第二终端设备发送的数据所占用的传输资源，确定是否存在冲突；
    所述终端设备，根据获取的用于确定备用PSFCH资源集和所专用资源索引的指示信息确定所述专用资源；
    所述终端设备，确定协作信息中指示的具体内容；
    所述终端设备，通过所述专用资源，向所述第一终端和/或第二终端发送协作信息。
  12. 如权利要求11所述方法，其特征在于，所述用于确定备用PSFCH资 源集和专用资源索引的指示信息，包含以下至少一种：
    子信道参数、偏移量参数。
  13. 如权利要求12所述方法，其特征在于，所述终端设备通过以下至少一种方式获取所述用于确定备用PSFCH资源集和专用资源索引的指示信息：
    高层信令、物理层信令、写入设备。
  14. 一种通信设备，其特征在于，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1～13中任意一项所述方法的步骤。
  15. 一种计算机可读介质，所述计算机可读介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求1～13任意一项所述的方法的步骤。
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