WO2021057761A1 - Procédé, appareil, et système de communication - Google Patents

Procédé, appareil, et système de communication Download PDF

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Publication number
WO2021057761A1
WO2021057761A1 PCT/CN2020/116983 CN2020116983W WO2021057761A1 WO 2021057761 A1 WO2021057761 A1 WO 2021057761A1 CN 2020116983 W CN2020116983 W CN 2020116983W WO 2021057761 A1 WO2021057761 A1 WO 2021057761A1
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WIPO (PCT)
Prior art keywords
frequency domain
resource
terminal device
psschs
psfch
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PCT/CN2020/116983
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English (en)
Chinese (zh)
Inventor
刘云
王键
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华为技术有限公司
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Publication of WO2021057761A1 publication Critical patent/WO2021057761A1/fr

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    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • 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

Definitions

  • the embodiments of the present application provide a communication method, device, and system, which can avoid demodulation errors caused by the first terminal device not recognizing certain or some data transmitted on the PSSCH, thereby improving the accuracy of data transmission. Sex.
  • the target sequence group is used to send the first information to the second terminal device through the PSFCH.
  • the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the first sequence group of the at least two sequence groups, and the first bit information When it is 1, the target sequence group is the second sequence group of at least two sequence groups, and the second sequence group is different from the first sequence group;
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 4, and the combination of the target sequence group and the target frequency domain resource is the third combination in the combination set except the first combination and the second combination;
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources.
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the first frequency domain resource among the multiple PSFCH frequency domain resources; or ,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is a second frequency domain resource other than the first frequency domain resource among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the target frequency domain resource is the second resource among the plurality of PSFCH frequency domain resources according to the identification information in ascending order; or ,
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources.
  • the sequence group includes a sequence including a sequence with a cyclic shift label of 1, a sequence with a cyclic shift label of 4, a sequence with a cyclic shift label of 7, and a sequence with a cyclic shift label of 10.
  • n 2, 3, or 4;
  • the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the first sequence group of the at least two sequence groups, and the first bit information When it is 1, the target sequence group is the second sequence group of at least two sequence groups, and the second sequence group is different from the first sequence group;
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, the target sequence group is the first sequence group of at least two sequence groups, and the target frequency domain resource is an identifier among multiple PSFCH frequency domain resources The largest resource of information.
  • the first terminal device sends the first information on the frequency domain resource with the smallest identification information, the resource frequency domain with the largest identification information, or the frequency domain resource with the second smallest or second largest identification information.
  • the second terminal The device can determine the number of PSSCHs carrying the data received by the first terminal device according to the different frequency domain resources for receiving the first information, which can prevent the first terminal device from not recognizing certain or some data transmitted on the PSSCH This can result in demodulation errors, which can improve the accuracy of data transmission.
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the target frequency domain resource is the second resource among the plurality of PSFCH frequency domain resources according to the identification information in ascending order; or ,
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information is the resource with the highest frequency domain position among the plurality of PSFCH frequency domain resources.
  • the sequence group includes a sequence including a sequence with a cyclic shift label of 1, a sequence with a cyclic shift label of 4, a sequence with a cyclic shift label of 7, and a sequence with a cyclic shift label of 10.
  • the sending unit is specifically used for:
  • the target sequence group is used to send the first information to the second terminal device through the PSFCH.
  • the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the first sequence group of the at least two sequence groups, and the first bit information When it is 1, the target sequence group is the second sequence group of at least two sequence groups, and the second sequence group is different from the first sequence group;
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the first frequency domain resource among the multiple PSFCH frequency domain resources; or ,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 4, and the target frequency domain resource is the third resource among the plurality of PSFCH frequency domain resources in the order of the identification information from the smallest to the largest.
  • an embodiment of the present application provides a communication device, including:
  • the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the first sequence group of the at least two sequence groups, and the first bit information When it is 1, the target sequence group is the second sequence group of at least two sequence groups, and the second sequence group is different from the first sequence group;
  • the target frequency domain resource is the first PSFCH frequency domain resource among multiple PSFCH frequency domain resources, and when the second bit information is 1, the target frequency domain resource is multiple PSFCH frequency domain resources.
  • the second PSFCH frequency domain resource in the domain resources, the second PSFCH frequency domain resource and the first PSFCH frequency domain resource are different.
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 4, and the target frequency domain resource is the third PSFCH frequency domain resource excluding the first frequency domain resource and the second frequency domain resource. Frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 2, and the target frequency domain resource is a plurality of PSFCH frequency domain resources according to the order of identification information ascending.
  • the first resource or,
  • the sequence group includes a sequence including a sequence with a cyclic shift label of 1, a sequence with a cyclic shift label of 4, a sequence with a cyclic shift label of 7, and a sequence with a cyclic shift label of 10.
  • the terminal device includes a processing unit and a transceiving unit.
  • the processing unit may be a processor, the transceiving unit may be a transceiver, and the transceiver includes a radio frequency circuit.
  • the terminal device further includes a storage unit, which may be a memory, for example.
  • the storage unit is used to store computer execution instructions
  • the processing unit is connected to the storage unit, and the processing unit executes the computer execution instructions stored in the storage unit, so that the terminal device executes the above aspects or any possible design. Communication method.
  • Figure 2 is a schematic diagram of the first scenario of V2X communication
  • Fig. 6c is a schematic diagram of target frequency domain resources when the number of PSSCHs is 4.
  • Fig. 7b is another schematic diagram of target frequency domain resources when the number of PSSCHs is 3;
  • FIG. 7c is another schematic diagram of target frequency domain resources when the number of PSSCHs is 4;
  • Figure 9a is a schematic diagram of a target frequency domain resource
  • the terminal device can be a terminal device located on the vehicle in V2X (for example, a vehicle-mounted terminal device, a terminal device carried by a user riding a vehicle), or a terminal device located in X (X can be a vehicle, infrastructure, network, pedestrian, etc.
  • the terminal device on) may be the vehicle terminal itself or X itself.
  • the terminal device mentioned here may be a wireless terminal device capable of receiving network device scheduling and instruction information, a wireless terminal device may be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or Other processing equipment connected to the wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • a wireless access network e.g., radio access network, RAN
  • the first terminal device receives the data sent by the second terminal device through n PSSCHs, where n is 2, 3, or 4, and then the first terminal device According to the received data, determine the target frequency domain resource for feeding back the first information from the multiple PSFCH frequency domain resources corresponding to the n PSSCHs, and send the first information to the second terminal device through the PSFCH on the target frequency domain resource,
  • the first information is used to indicate the number of PSSCHs carrying data received by the first terminal device.
  • n 2, 3, or 4.
  • the first terminal device determines the target frequency domain resource from the multiple PSFCH frequency domain resources corresponding to the n PSSCHs according to the received data, so as to return the first information to the second terminal device on the target frequency domain resource.
  • the determined target frequency domain resources are different, that is, different target frequency domain resources can be used to indicate the number of PSSCHs carrying the received data.
  • a sequence group including a sequence with a cyclic shift index of 1, a sequence with a cyclic shift index of 4, a sequence with a cyclic shift index of 7, and a sequence with a cyclic shift index of 10 are used, or A sequence group including a sequence with a cyclic shift label of 2, a sequence with a cyclic shift label of 5, a sequence with a cyclic shift label of 8, and a sequence with a cyclic shift label of 11, to send the first information as an example for description,
  • the manner of using other sequence groups to send the first information is similar to the manner of using the foregoing two sequence groups to send the first information, and will not be repeated here.
  • the foregoing preset sequence group may also be sequence group 2.
  • the method of sending the first information is similar to the method of sending the first information when the preset sequence group is sequence group 1.
  • the first terminal device can use sequence group 2 and the first frequency domain resource (such as PRB1) of the multiple PSFCH frequency domain resources to send data to the second PSFCH through the PSFCH.
  • the second terminal device sends the first information and so on.
  • the first terminal device sends the first information on the first frequency domain resource, the second frequency domain resource, or the third frequency domain resource respectively.
  • the second terminal device receives the first information according to different frequencies.
  • the domain resources can determine the number of PSSCHs carrying the data received by the first terminal device, and can avoid demodulation errors caused by the first terminal device not recognizing certain or some data transmitted on the PSSCH. This can improve the accuracy of data transmission.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or, The first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or, the first information indicates that the first terminal device is carried
  • the number of PSSCHs of the received data is 4, and the target frequency domain resource is the resource with the second smallest or second largest identification information among the multiple PSFCH frequency domain resources.
  • the identification information of the frequency domain resource can be understood as the label or index number of the frequency domain resource.
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the multiple PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information. , Is the resource with the highest frequency domain position among multiple PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 2, and the target frequency domain resource is a number of PSFCH frequency domain resources from small to large according to the identification information.
  • the resource in the first order; or, the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the target frequency domain resource is a plurality of PSFCH frequency domain resources from small to large according to the identification information.
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 4, and the target frequency domain resource is a plurality of PSFCH frequency domain resources according to the identification information from smallest to The third resource in the largest order.
  • the first three can be selected to indicate that the first terminal device receives data transmitted on 2 PSSCHs, and the first terminal device receives 3 PSSCHs.
  • the target frequency domain resource for sending the first information is the plurality of PSFCH frequency domain resources.
  • the multiple PSFCH frequency domain resources they are ranked first in the order of identification information from smallest to largest.
  • the target frequency domain resource for sending the first information is the plurality of PSFCH frequency domain resources, ranked first in the order of the identification information in descending order
  • the three resources can also be understood as the resource with the second largest identification information among multiple PSFCH frequency domain resources, that is, the second frequency domain resource in the above embodiment may be ranked first in the order of identification information from largest to smallest.
  • the first terminal device can use the above sequence group 1, and the plurality of PSFCH frequency domain resources are ranked first in order of identification information in descending order
  • the resource (such as PRB2) sends the first information to the second terminal device through the PSFCH.
  • the first terminal device can use the above sequence group 1, and multiple PSFCH frequency domain resources according to the order of identification information from largest to smallest.
  • the second resource (such as PRB2) sends the first information to the second terminal device through the PSFCH.
  • the first terminal device may also determine the target sequence group for feeding back the first information from the at least two sequence groups according to the received data, and then use the target sequence group on the target frequency domain resource to send information to The second terminal device sends the first information.
  • the at least two sequence groups may be sequence group 1 including a sequence with a cyclic shift index of 1, a sequence with a cyclic shift index of 4, a sequence with a cyclic shift index of 7, and a sequence with a cyclic shift index of 10.
  • a sequence group 2 including a sequence with a cyclic shift index of 2, a sequence with a cyclic shift index of 5, a sequence with a cyclic shift index of 8, and a sequence with the cyclic shift index of 11.
  • the first terminal device receives data transmitted on at least two PSSCHs, it will determine a target sequence group from the aforementioned at least two sequence groups, such as sequence group 1 or sequence group 2, and based on the determined target frequency domain resources, Using the target sequence group, the first information is sent to the second terminal device through the PSFCH. In this way, the second terminal device will determine the number of PSSCHs carrying the data received by the first terminal device based on the frequency domain resource and sequence group receiving the first information, thereby avoiding the failure of the first terminal device to recognize a certain number. Or some data transmitted on the PSSCH causes demodulation errors, which can improve the accuracy of data transmission.
  • first sequence group and The second sequence group may also be other sequence groups, as long as the first sequence group and the second sequence group are different.
  • first PSFCH frequency domain resource may be PRB1
  • second PSFCH frequency domain resource may be PRB2
  • the first PSFCH frequency domain resource may be PRB2
  • the second PSFCH frequency domain resource may be PRB1.
  • the first PSFCH frequency domain resource and the second PSFCH frequency domain resource may also be other PSFCH frequency domain resources, as long as the first PSFCH frequency domain resource and the second PSFCH frequency domain resource are different.
  • the identification information of the frequency domain resource can be understood as the label or index number of the frequency domain resource.
  • the frequency domain resource with the largest identification information is the resource with the highest frequency domain position among the multiple PSFCH frequency domain resources, or the frequency domain resource with the smallest identification information. , Is the resource with the highest frequency domain position among multiple PSFCH frequency domain resources.
  • FIG. 9a is a schematic diagram of the target frequency domain resource
  • FIG. 9b is another schematic diagram of the target frequency domain resource.
  • the target frequency domain resource when the second bit information in the 2-bit information is 0, the target frequency domain resource It can be the resource with the largest identification information among multiple PSFCH frequency domain resources (such as PRB2), or, when the second bit of information is 1, the target frequency domain resource can be the resource with the largest identification information among multiple PSFCH frequency domain resources (such as PRB2).
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the combination of the target sequence group and the target frequency domain resource is the first combination in the combination set; or , The first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the combination of the target sequence group and the target frequency domain resource is the second combination in the combination set except the first combination; or, the first The information indicates that the number of PSSCHs carrying the data received by the first terminal device is 4, and the combination of the target sequence group and the target frequency domain resource is the third combination in the combination set except the first combination and the second combination; where, the combination The combination of the target sequence group and the target frequency domain resource included in the set includes: the target sequence group is the first sequence group of at least two sequence groups, and the target frequency domain resource is the resource with the smallest identification information among multiple PSFCH frequency domain resources The target sequence group is the first sequence group of at least two sequence groups, and the target frequency domain resource is the resource with the largest identification information among multiple PSFCH
  • the first terminal device receives data transmitted on 1 PSSCH, that is, when it feeds back the decoding result of 1 PSSCH, it usually uses the corresponding PSFCH frequency domain resource including the cyclic shift label of 0.
  • the sequence group of the sequence, the sequence with the cyclic shift index of 3, the sequence with the cyclic shift index of 6, and the sequence with the cyclic shift index of 9 sends the first information.
  • the first terminal device uses the first sequence group, and the identification information of the multiple PSFCH frequency domain resources is the smallest The resource sends the first message.
  • FIG. 10a is another schematic diagram of the target frequency domain resources when the number of PSSCHs is 2
  • FIG. 10b is another schematic diagram of the target frequency domain resources when the number of PSSCHs is 3
  • FIG. 10c is another schematic diagram of the target frequency domain resources when the number of PSSCHs is 3.
  • the first terminal device sends the first information through the preset sequence group 1 or sequence group 2, that is, the sequence group 1 or sequence group 2 is used to carry the feedback results of multiple PSSCH "ANDs" to feed back the first information.
  • the terminal device receives data transmitted on multiple PSSCHs, and the sequence group 1 or sequence group 2 is different from the sequence group that feeds back a PSSCH decoding result. If multiple PSSCHs are transmitted on the same subchannel, the first information is sent using sequence group 1 or sequence group 2 on PRB1.
  • Figure 11a is another schematic diagram of the target frequency domain resources. As shown in Figure 11a, if multiple PSSCHs include PSSCH1 and PSSCH2, and PSSCH1 and PSSCH2 are transmitted on the same subchannel, select sequence group 1 or sequence on PRB1 Group 2 sends the first message.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources ;or,
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination The second combination other than; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources divided by the first frequency domain resource and A third frequency domain resource other than the second frequency domain resource.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources ;or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The second resource; or,
  • the division of the various units of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity during actual implementation, or may be physically separated. And these units can all be implemented in the form of software invocation through processing elements; they can also be implemented in the form of hardware; part of the units can also be implemented in the form of software invocation through processing elements, and some of the units can be implemented in the form of hardware.
  • the sending unit may be a separate processing element, or it may be integrated into a certain chip of the communication device for implementation.
  • it may also be stored in the memory of the communication device in the form of a program and processed by a certain one of the communication device. The component calls and executes the function of the sending unit.
  • the present application also provides a communication system, including the first terminal device described in any of the above embodiments and the second terminal device described in any of the above embodiments.
  • the present application also provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the communication method provided in any of the foregoing embodiments.
  • the present application also provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the communication method provided in any of the foregoing embodiments.
  • An embodiment of the present application also provides a communication device, including at least one storage element and at least one processing element, the at least one storage element is used to store a program, and when the program is executed, the communication device executes any one of the foregoing implementations.
  • a communication device including at least one storage element and at least one processing element, the at least one storage element is used to store a program, and when the program is executed, the communication device executes any one of the foregoing implementations.
  • Embodiment 1 A communication method, wherein, applied to a first terminal device, the method includes:
  • the first information is sent to the second terminal device through the PSFCH, and the first information is used to indicate the number of PSSCHs carrying the data received by the first terminal device.
  • Embodiment 2 The method according to embodiment 1, wherein the sending the first information to the second terminal device via PSFCH on the target frequency domain resource includes:
  • the target sequence group is used to send the first information to the second terminal device through the PSFCH.
  • Embodiment 3 The method according to embodiment 2, wherein the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the at least two When the first bit information is 1, the target sequence group is the second sequence group of the at least two sequence groups, and the second sequence group and the first sequence group are A sequence of groups are different;
  • Embodiment 5 The method according to embodiment 2, wherein:
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 2, and the combination of the target sequence group and the target frequency domain resource is the first combination in the combination set; or,
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination The second combination other than; or,
  • Embodiment 6 The method according to embodiment 5, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • Embodiment 7 The method according to embodiment 1 or 2, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the first frequency domain resource among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the resource with the second smallest or second largest identification information among the plurality of PSFCH frequency domain resources .
  • Embodiment 9 The method according to embodiment 7, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information.
  • the second resource or,
  • Embodiment 13 The method according to embodiment 12, wherein the receiving the first information sent by the first terminal device through the physical direct link feedback channel PSFCH on the target frequency domain resource includes:
  • the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and when the second bit information is 1, the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources.
  • the target frequency domain resource is a second PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and the second PSFCH frequency domain resource is different from the first PSFCH frequency domain resource.
  • Embodiment 15 The method according to embodiment 14, wherein the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources corresponding to the n PSSCHs or the resource corresponding to the n PSSCHs. The resource with the smallest identification information among the PSFCH frequency domain resources.
  • Embodiment 16 The method according to embodiment 12, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is one of the plurality of PSFCH frequency domain resources divided by the first frequency domain resource External second frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources divided by the first frequency domain resource and A third frequency domain resource other than the second frequency domain resource.
  • Embodiment 19 The method of embodiment 18, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information.
  • the second resource or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The first resource; or,
  • Embodiment 22 the method according to embodiment 13, embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19, embodiment 20, or embodiment 21, wherein the sequence
  • the group includes a sequence with a cyclic shift label of 1, a sequence with a cyclic shift label of 4, a sequence with a cyclic shift label of 7, a sequence with a cyclic shift label of 10, and a sequence group containing a sequence with a cyclic shift label of 2.
  • the receiving unit is configured to respectively receive data sent by the second terminal equipment through n physical direct link shared channels PSSCH, where n is 2, 3 or 4;
  • a processing unit configured to determine the target frequency domain resource for feeding back the first information from among the multiple physical direct link feedback channel PSFCH frequency domain resources corresponding to the n PSSCHs according to the received data;
  • the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and when the second bit information is 1, the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources.
  • the target frequency domain resource is a second PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and the second PSFCH frequency domain resource is different from the first PSFCH frequency domain resource.
  • Embodiment 26 The device according to embodiment 25, wherein the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources corresponding to the n PSSCHs or the resource corresponding to the n PSSCHs. The resource with the smallest identification information among the PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 3, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination The second combination other than; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination And a third combination other than the second combination;
  • the combination of the target sequence group and the target frequency domain resource included in the combination set is: the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain resource Is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain resource is the plurality of PSFCH frequency domain resources; The resource with the largest identification information in the domain resources; the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources Resource; the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources.
  • Embodiment 28 The device of embodiment 27, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources divided by the first frequency domain resource and A third frequency domain resource other than the second frequency domain resource.
  • Embodiment 30 The device according to embodiment 29, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the resource with the second smallest or second largest identification information among the plurality of PSFCH frequency domain resources .
  • Embodiment 31 The device according to embodiment 29, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The third resource.
  • the receiving unit is configured to receive, on the target frequency domain resource, the first information sent by the first terminal device through the physical direct link feedback channel PSFCH, the target frequency domain resource is the first terminal device according to the received
  • the data of is determined from multiple PSFCH frequency domain resources corresponding to the n PSSCHs, and the first information is used to indicate the number of PSSCHs carrying the data received by the first terminal device.
  • a target sequence group is used to receive the first information sent by the first terminal device through the PSFCH, and the target sequence group is the first terminal device according to the received data Determined from at least two sequence groups.
  • Embodiment 37 The device according to embodiment 36, wherein the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources corresponding to the n PSSCHs or the resource corresponding to the n PSSCHs.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the first frequency domain resource among the plurality of PSFCH frequency domain resources; or,
  • Embodiment 41 The device according to embodiment 40, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information. In the third resource.
  • Embodiment 43 The device of embodiment 40, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The first resource; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The second resource; or,
  • a processing unit configured to determine a target frequency domain resource for feeding back the first information from among multiple physical direct link feedback channel PSFCH frequency domain resources corresponding to the n PSSCHs according to the received data;
  • the receiving unit is configured to receive, on the target frequency domain resource, the first information sent by the first terminal device through the physical direct link feedback channel PSFCH, the target frequency domain resource is the first terminal device according to the received
  • the data of is determined from multiple PSFCH frequency domain resources corresponding to the n PSSCHs, and the first information is used to indicate the number of PSSCHs carrying the data received by the first terminal device.
  • Embodiment 47 The system according to embodiment 46, wherein the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the at least two bits. When the first bit information is 1, the target sequence group is the second sequence group of the at least two sequence groups, and the second sequence group and the first sequence group are A sequence of groups are different;
  • Embodiment 48 The system according to embodiment 47, wherein the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources corresponding to the n PSSCHs or the resource corresponding to the n PSSCHs.
  • Embodiment 49 The system according to embodiment 46, wherein:
  • the first information indicates that the number of PSSCHs carrying the data received by the first terminal device is 2, and the combination of the target sequence group and the target frequency domain resource is the first combination in the combination set; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination And a third combination other than the second combination;
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • Embodiment 50 The system according to embodiment 45 or embodiment 46, wherein the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource Is the first frequency domain resource among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is one of the plurality of PSFCH frequency domain resources divided by the first frequency domain resource External second frequency domain resources; or,
  • Embodiment 51 The system according to embodiment 50, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the resource with the second smallest or second largest identification information among the plurality of PSFCH frequency domain resources .
  • Embodiment 52 The system according to embodiment 50, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information.
  • the second resource or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information. In the third resource.
  • Embodiment 53 The system according to embodiment 50, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The first resource; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The second resource; or,
  • Embodiment 55 The system according to embodiment 45, wherein the receiving unit of the second terminal device is specifically configured to:
  • Embodiment 56 The system according to embodiment 55, wherein the first information includes 2-bit information; when the first bit information in the 2-bit information is 0, the target sequence group is the at least two bits. When the first bit information is 1, the target sequence group is the second sequence group of the at least two sequence groups, and the second sequence group and the first sequence group are A sequence of groups are different;
  • the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and when the second bit information is 1, the target frequency domain resource is the first PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources.
  • the target frequency domain resource is a second PSFCH frequency domain resource among the plurality of PSFCH frequency domain resources, and the second PSFCH frequency domain resource is different from the first PSFCH frequency domain resource.
  • Embodiment 57 The system according to embodiment 56, wherein the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources corresponding to the n PSSCHs or the resource corresponding to the n PSSCHs. The resource with the smallest identification information among the PSFCH frequency domain resources.
  • Embodiment 58 the system according to embodiment 55, wherein the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target sequence group and the target frequency
  • the combination of domain resources is the first combination in the combination set; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the combination of the target sequence group and the target frequency domain resource is the combination set divided by the first combination And a third combination other than the second combination;
  • the combination of the target sequence group and the target frequency domain resource included in the combination set is: the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain resource Is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain resource is the plurality of PSFCH frequency domain resources; The resource with the largest identification information in the domain resources; the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources Resource; the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain resource is the resource with the largest identification information among the plurality of PSFCH frequency domain resources.
  • Embodiment 59 The system according to embodiment 58, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, the target sequence group is the second sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the smallest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, the target sequence group is the first sequence group of the at least two sequence groups, and the target frequency domain
  • the resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources.
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the first frequency domain resource among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is one of the plurality of PSFCH frequency domain resources divided by the first frequency domain resource External second frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 2, and the target frequency domain resource is the resource with the smallest identification information among the plurality of PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the resource with the largest identification information among the multiple PSFCH frequency domain resources; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the resource with the second smallest or second largest identification information among the plurality of PSFCH frequency domain resources .
  • Embodiment 62 The system according to embodiment 60, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources arranged in ascending order of identification information.
  • the second resource or,
  • Embodiment 63 The system according to embodiment 60, wherein:
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 3, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The second resource; or,
  • the first information indicates that the number of PSSCHs carrying data received by the first terminal device is 4, and the target frequency domain resource is the plurality of PSFCH frequency domain resources in descending order of identification information The third resource.
  • Embodiment 64 the system according to embodiment 55, embodiment 56, embodiment 57, embodiment 58, embodiment 59, embodiment 60, embodiment 61, or embodiment 62, wherein the sequence group includes a loop
  • the computer program is stored in the memory and is configured to be executed by the processor, and the computer program includes a method for executing the method according to any one of Embodiment 1 to Embodiment 11. Instructions.
  • a terminal device including:
  • Embodiment 67 A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program causes the terminal device to execute the method described in any one of Embodiment 1 to Embodiment 11. method.
  • Embodiment 68 A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program causes the terminal device to execute the method described in any one of Embodiments 12-22. method.
  • Embodiment 70 A computer program product containing instructions, wherein when it runs on a computer, the computer is caused to execute the communication method as described in any one of Embodiment 12 to Embodiment 22.
  • Embodiment 71 A communication chip, the chip is connected to a memory, or a memory is integrated on the chip, and when the software program stored in the memory is executed, the implementation is as in any one of Embodiment 1 to Embodiment 11. The communication method described in the embodiment.
  • Embodiment 72 a communication chip, the chip is connected to the memory, or the memory is integrated on the chip, and when the software program stored in the memory is executed, the implementation is as in any one of Embodiment 12 to Embodiment 22 The communication method described in the embodiment.
  • All or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps of the above-mentioned method embodiments; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, ROM), RAM, flash memory, hard disk, solid state hard disk , Magnetic tape, floppy disk, optical disc, and any combination thereof.

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Abstract

La présente invention concerne un procédé, un appareil et un système de communication. Le procédé consiste : à recevoir respectivement des données envoyées par un second dispositif terminal au moyen de n canaux partagés de liaison latérale physique (PCCCH), n étant deux, trois ou quatre ; selon les données reçues, à déterminer une ressource de domaine de fréquence cible pour renvoyer des premières informations parmi une pluralité de ressources de domaine de fréquence de canaux de rétroaction de liaison latérale physique (PSFCH) correspondant aux n PSSCH ; et à envoyer, sur la ressource de domaine de fréquence cible, les premières informations au second dispositif terminal au moyen d'un PSFCH, les premières informations étant utilisées pour indiquer le nombre de PSSCH pour porter les données reçues par un premier dispositif terminal. Au moyen du procédé, appareil et système de communication prévus dans la présente invention, des erreurs de démodulation provoquées par le fait que le premier dispositif de terminal n'identifie pas les données transmises sur un certain PSSCH ou certains PSSCH peuvent être empêchées, ce qui permet d'améliorer la précision de la transmission de données.
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