WO2021062704A1 - Procédé et appareil d'acquisition de ressource de liaison latérale - Google Patents

Procédé et appareil d'acquisition de ressource de liaison latérale Download PDF

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Publication number
WO2021062704A1
WO2021062704A1 PCT/CN2019/109600 CN2019109600W WO2021062704A1 WO 2021062704 A1 WO2021062704 A1 WO 2021062704A1 CN 2019109600 W CN2019109600 W CN 2019109600W WO 2021062704 A1 WO2021062704 A1 WO 2021062704A1
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Prior art keywords
terminal device
information
time offset
resource
offset parameter
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PCT/CN2019/109600
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English (en)
Chinese (zh)
Inventor
彭文杰
王君
戴明增
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华为技术有限公司
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Priority to PCT/CN2019/109600 priority Critical patent/WO2021062704A1/fr
Priority to CN201980100596.3A priority patent/CN114424650A/zh
Publication of WO2021062704A1 publication Critical patent/WO2021062704A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of wireless communication, and more specifically, to a method and device for acquiring side link resources.
  • V2X vehicle-to-everything
  • 5G 5th generation
  • NR new radio
  • terminal devices can perform broadcast communication, unicast communication, and multicast communication on a sidelink (SL).
  • a method is currently known.
  • a terminal device (for example, terminal device #1) can request a network device to obtain SL resources through another terminal device (for example, terminal device #2).
  • the network device cannot identify whether the resource request information is requesting resources for terminal device #1 or terminal device #2. Therefore, the network device may not be able to accurately schedule SL resources for the terminal device #2, resulting in low reliability of the terminal device #2 in transmitting service data and poor service experience.
  • the present application provides a method for obtaining SL resources.
  • a second terminal device requests SL resources from a network device through a first terminal device
  • the network device can accurately schedule SL resources for the second terminal device.
  • a method for acquiring SL resources includes: a first terminal device receives first information from a second terminal device, where the first information is used to request SL resources; and the first terminal device is based on the first terminal device. A piece of information generates second information, and the second information carries identification information of the second terminal device for requesting the SL resource for the second terminal device; the first terminal device sends the second information to the network device.
  • the second information generated by the first terminal device based on the first information from the second terminal device carries the identification information of the second terminal device.
  • the network device can identify according to the identification information of the second terminal device that the SL resource requested by the second information is used for the second terminal device to transmit service data, so that Allocate SL resources to the second terminal device more accurately and reasonably.
  • the identification information of the second terminal device includes third information for identifying the second terminal device, or the first information for identifying the second terminal device Third information and fourth information used to identify the terminal device group to which the second terminal device belongs.
  • the second information generated by the first terminal device based on the first information may carry identification information of different second terminal devices. Therefore, in different communication scenarios, the network device can also recognize that the SL resource requested by the second information is used for the second terminal device to transmit service data, so that the SL resource can be allocated to the second terminal device more accurately and reasonably. For example, if the second terminal device requests SL resources from the network device through the relay (the first terminal device), the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information may include The third information of the second terminal device, and the network device can identify the second terminal device based on the third information.
  • the identification information of the second terminal device may include the third information used to identify the second terminal device and the third information used to identify the terminal device group.
  • the network device can identify the second terminal device based on the third information and the fourth information.
  • the third information includes one or more of the following: a layer 2 (L2) identifier of the second terminal device, and a layer 2 (L2) identifier of the second terminal device. ID or index within the group.
  • the fourth information includes a group identifier or index of the terminal device group.
  • the first information includes a first buffer state report (BSR), and the second information includes a second BSR generated based on the first BSR .
  • BSR buffer state report
  • the method further includes: the first terminal device receives downlink control information (DCI) from the network device, where the DCI includes first indication information And first sidelink control information (SCI), where the first indication information is used to indicate the first SL resource, and the first SL resource is used to transmit the first SCI; the first terminal device passes the The first SL resource sends the first SCI to the second terminal device, the first SCI includes second indication information and a second SCI, the second indication information is used to indicate the second SL resource, and the second SL resource is used for The second SCI is transmitted, the second SCI is used to indicate a third SL resource, and the third SL resource is used for the second terminal device to transmit service data.
  • DCI downlink control information
  • SCI first indication information
  • SCI sidelink control information
  • the network device simultaneously schedules multiple SL resources according to the received second BSR, and completes the allocation of the first SL resource for sending the first SCI to the second terminal device to the first terminal device in one step, and the first terminal device to the The second terminal device instructs the third SL resource for transmitting the service data, which improves the efficiency of the second terminal device in obtaining the SL resource.
  • the method further includes: the first terminal device receives a DCI from the network device, where the DCI is used to indicate SL resources; and the first terminal device according to the DCI
  • the indicated SL resource generates a second SCI; the first terminal device sends a second SCI to the second terminal device, the second SCI is used to indicate the third SL resource, and the third SL resource is used for transmission by the second terminal device Service data, and the third SL resource is included in the SL resource indicated by the DCI.
  • the DCI further includes third information for identifying the second terminal device and/or a third information for identifying the terminal device group to which the second terminal device belongs. Four information.
  • the first terminal device can determine the SL scheduled by the network device through the third information and/or fourth information included in the DCI
  • the resource is used for which second terminal device or which member terminal device in the terminal device group transmits service data.
  • the first information includes a first business model
  • the second information includes a second business model generated based on the first business model
  • the first service model further includes a first time offset parameter, and the first time offset parameter is the relative time when the service data of the second terminal device arrives. The time offset from the predefined first time reference point.
  • the method before the first terminal device receives the first information from the second terminal device, the method further includes: the first terminal device sends the information to the second terminal device Send a second time offset parameter, where the second time offset parameter is the time offset of the subframe #0 of the direct frame number (DFN) #0 relative to the predefined first time reference point.
  • the second time offset parameter is the time offset of the subframe #0 of the direct frame number (DFN) #0 relative to the predefined first time reference point.
  • the second terminal device determines the first time offset parameter according to the received second time offset parameter, and forwards the second service model containing the first time offset parameter to the network through the first terminal device Equipment, the complexity of the network equipment side can be omitted, and the existing Uu port reporting service model can be reused.
  • the first service model further includes a third time offset parameter, and the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the second service model further includes a first time offset parameter, the first time offset parameter is used to indicate the relative time when the service data of the second terminal device arrives
  • the method further includes: the first terminal device determines the first time offset parameter according to the third time offset parameter.
  • the first terminal device determines the first time offset parameter according to the received third time offset parameter, and forwards the second service model containing the first time offset parameter to the network device, which can be omitted
  • the complexity of the network equipment side reuses the existing Uu port reporting service model.
  • the first service model further includes a third time offset parameter
  • the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the method further includes: the first terminal device sends a second time offset parameter to the network device, where the second time offset parameter is a child of the DFN#0 The time offset of frame #0 relative to the predefined first time reference point.
  • the first time reference point includes a system frame number (system frame number, SFN) #0 of subframe #0.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of a global navigation satellite system (GNSS).
  • GNSS global navigation satellite system
  • the method further includes: the first terminal device receives a sidelink configured grant (SLCG) configuration from the network device, and the SL The CG also carries third information for identifying the second terminal device and/or fourth information for identifying the terminal device group to which the second terminal device belongs; the first terminal device forwards the SL to the second terminal device CG configuration.
  • SLCG sidelink configured grant
  • the first terminal device can determine the network device allocation through the third information and/or fourth information included in the SL CG configuration
  • the SL CG resource is used for which second terminal device or which member terminal device in the terminal device group is used to transmit service data.
  • a method for obtaining SL resources includes: a first terminal device receives a third service model from a second terminal device, the third service model is used to request SL resources, and the third service model Including a time offset parameter, the time offset parameter is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the first terminal device forwards to the network device The third business model.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is a relative time when the service data transmitted by the second terminal device arrives. The time offset from the predefined first time reference point.
  • the second terminal device determines the first time offset parameter according to the received second time offset parameter, and forwards the third service model including the first time offset parameter to the network through the first terminal device Equipment, the complexity of the network equipment side can be omitted, and the existing Uu port reporting service model can be reused.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is the time at which the service data of the second terminal device arrives relative to A predefined time offset of the second time reference point
  • the method further includes: the first terminal device sends the second time offset parameter to the network device, and the second time offset parameter is a subframe of DFN#0 #0 is the time offset relative to the predefined first time reference point.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of GNSS.
  • the method before the first terminal device receives the third service model from the second terminal device, the method further includes: The device sends a second time offset parameter, where the second time offset parameter is the time offset of the subframe #0 of the DFN#0 relative to the predefined first time reference point.
  • the first time reference point includes subframe #0 of SFN#0.
  • the method further includes: the first terminal device receives the SL CG configuration from the network device; the first terminal device forwards the SL to the second terminal device CG configuration.
  • a method for obtaining SL resources includes: a first terminal device receives a third service model from a second terminal device, the third service model is used to request SL resources, and the first service model includes The third time offset parameter, the third time offset parameter is the time offset of the arrival time of the service data of the second terminal device with respect to the predefined second time reference point; the first terminal device is based on the first The service model generates a fourth service model, the fourth service model includes a first time offset parameter, the first time offset parameter is determined by the third time offset parameter, and the first time offset parameter is the second time offset parameter The time offset of the arrival time of the service data transmitted by the terminal device relative to the predefined first time reference point; the first terminal device sends the fourth service model to the network device.
  • the first terminal device determines the first time offset parameter according to the received third time offset parameter, and forwards the fourth service model containing the first time offset parameter to the network device, which can save the network device side
  • the complexity of the existing Uu port reporting business model is reused.
  • the first time reference point includes subframe #0 of SFN#0
  • the second time reference point includes subframe #0 of DFN#0 or GNSS one. Absolute point in time.
  • the method further includes: the first terminal device receives the SL CG configuration from the network device; the first terminal device forwards the SL to the second terminal device CG configuration.
  • a communication method includes: a first terminal device determines that the configuration of a second terminal device SL fails, and the second terminal device and the first terminal device are in the same terminal device group; The network device sends third indication information, where the third indication information is used to indicate that the configuration of the second terminal device SL fails, or the third indication information is used to indicate that the configuration of the terminal device group SL fails.
  • the first terminal device can be triggered to perform radio resource control (radio resource control, RRC) re-establishment. Or trigger the first terminal device to send to the network device the third indication information indicating that the SL configuration of the member terminal device fails, so that the network device knows that there is a problem with the SL configuration, so that the network device optimizes and updates the SL configuration provided to the terminal device group.
  • RRC radio resource control
  • the first terminal device determines that the second terminal device SL configuration fails, including: the first terminal device based on the received SL from the second terminal device The configuration failure indication determines that the SL configuration of the second terminal device has failed; or the first terminal device determines that the second terminal device fails to receive the SL configuration failure indication from the second terminal device when the timer expires. Device SL configuration failed.
  • the method further includes: the first terminal device sends a radio resource control RRC reconfiguration complete message to the network device, where the RRC reconfiguration complete message is used to indicate that the SL configuration of the first terminal device is successful.
  • the method further includes: the first terminal device triggers RRC re-establishment.
  • the third indication information if the third indication information is used to indicate that the configuration of the second terminal device SL fails, the third indication information also carries identification information of the second terminal device.
  • the network device can identify which member of the terminal device group has failed the configuration of the terminal device SL according to the identification information of the second terminal device carried in the third indication information, so that it can reasonably optimize the update provided for the terminal device group.
  • SL configuration
  • the method before the first terminal device sends the first indication information to the network device, the method further includes: the first terminal device sends the terminal device to the network device Group information of the group, the group information includes one or more of the following: the group identifier of the terminal device group, the frequency information of the terminal device group, the L2 identifier of each terminal device in the terminal device group, and the terminal device group in the terminal device group The ID or index of each terminal device in the group.
  • the method further includes: the first terminal device receives a measurement result from the second terminal device; and the first terminal device sends the measurement result to the network device And the identification information of the second terminal device.
  • the member terminal devices in the terminal device group are allowed to report the measurement results to the network device through the head terminal device in the terminal device group. This allows the network device to optimize and update the SL resource pool configuration provided for each terminal device in the terminal device group according to the received measurement result.
  • the identification information of the second terminal device includes third information for identifying the second terminal device, or the first information for identifying the second terminal device Third information and fourth information used to identify the terminal device group to which the second terminal device belongs.
  • the third information includes one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information includes a group identifier or index of the terminal device group.
  • a method for obtaining SL resources includes: a network device receives second information from a first terminal device, the second information carries identification information of the second terminal device, and the second information is used for Request SL resources for the second terminal device, the second information is generated by the first terminal device based on the first information from the second terminal device; the network device generates resource allocation information according to the second information; the network device Sending the resource allocation information to the first terminal device.
  • the first terminal device generates second information based on the first information from the second terminal device, and the second information carries the identification information of the second terminal device.
  • the network device can identify, according to the identification information of the second terminal device, that the SL resource requested by the second information is used for the second terminal device to transmit service data, so that it can be more accurate, Reasonably allocate SL resources to the second terminal device.
  • the identification information includes third information used to identify the second terminal device, or third information used to identify the second terminal device and Fourth information identifying the terminal device group to which the second terminal device belongs.
  • the second information generated by the first terminal device based on the first information may carry identification information of different second terminal devices. Therefore, in different communication scenarios, the network device can recognize that the SL resource requested by the second information is used for the second terminal device to transmit service data, so that the SL resource can be allocated to the second terminal device more accurately and reasonably. For example, if the second terminal device requests SL resources from the network device through the relay (the first terminal device), the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information may include The third information of the second terminal device, and the network device can identify the second terminal device based on the third information.
  • the identification information of the second terminal device may include the third information used to identify the second terminal device and the third information used to identify the terminal device group.
  • the network device can identify the second terminal device based on the third information and the fourth information.
  • the third information includes one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information includes a group identifier or index of the terminal device group.
  • the first information includes a first BSR
  • the second information includes a second BSR generated based on the first BSR
  • the resource allocation information is DCI
  • the DCI includes first indication information and a first SCI
  • the first indication information is used to indicate the first SL resource
  • the first indication information is used to indicate the first SL resource.
  • An SL resource is used to transmit the first SCI
  • the first SCI includes second indication information and a second SCI
  • the second indication information is used to indicate a second SL resource
  • the second SL resource is used to transmit the second SCI
  • the second SCI is used to indicate a third SL resource
  • the third SL resource is used for the second terminal device to transmit service data.
  • the network device simultaneously schedules multiple SL resources according to the received second BSR, and completes the allocation of the first SL resource for sending the first SCI to the second terminal device to the first terminal device in one step, and the first terminal device to the The second terminal device instructs the third SL resource for transmitting the service data, which improves the efficiency of the second terminal device in obtaining the SL resource.
  • the resource allocation information is DCI
  • the DCI is used to indicate SL resources
  • the SL resources include a third SL resource
  • the third SL resource is used for the second SL resource.
  • the terminal equipment transmits service data.
  • the DCI further includes third information used to identify the second terminal device and/or a third information used to identify the terminal device group to which the second terminal device belongs. Four information.
  • the first terminal device can determine the SL scheduled by the network device through the third information and/or fourth information included in the DCI
  • the resource is used for which second terminal device or which member terminal device in the terminal device group is used to transmit service data.
  • the first information includes a first business model
  • the second information includes a second business model generated based on the first business model
  • the first service model further includes a first time offset parameter, and the first time offset parameter is a relative time when the service data of the second terminal device arrives. The time offset from the predefined first time reference point.
  • the second terminal device determines the first time offset parameter according to the received second time offset parameter, and forwards the second service model containing the first time offset parameter to the network through the first terminal device Equipment, the complexity of the network equipment side can be omitted, and the existing Uu port reporting service model can be reused.
  • the first service model further includes a third time offset parameter, and the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the second service model further includes a first time offset parameter, the first time offset parameter is used to indicate the relative time when the service data of the second terminal device arrives
  • the third time offset parameter is determined according to the first time offset parameter.
  • the first service model further includes a third time offset parameter
  • the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the method further includes: the network device receives a second time offset parameter from the first terminal device, and the second time offset parameter is a child of DFN#0 The time offset of frame #0 relative to the predefined first time reference point.
  • the first terminal device determines the first time offset parameter according to the received third time offset parameter, and forwards the second service model containing the first time offset parameter to the network device, which can be omitted
  • the complexity of the network equipment side reuses the existing Uu port reporting service model.
  • the first time reference point includes subframe #0 of SFN#0.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of GNSS.
  • the resource allocation information is the SL CG configuration, and the SL CG also carries third information for identifying the second terminal device and/or for identifying the second terminal device. 2. Fourth information of the terminal device group to which the terminal device belongs.
  • the first terminal device can determine the network device allocation through the third information and/or fourth information included in the SL CG configuration
  • the SL CG resource is used for which second terminal device or which member terminal device in the terminal device group is used to transmit service data.
  • a method for obtaining SL resources includes: a network device receives a third service model from a second terminal device forwarded by a first terminal device, and the third service model is used to request SL resources.
  • the third service model includes a time offset parameter, and the time offset parameter is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point;
  • the third service model produces resource allocation information; the network device sends the resource allocation information to the first terminal device.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is a relative time when the service data transmitted by the second terminal device arrives. The time offset from the predefined first time reference point.
  • the second terminal device determines the first time offset parameter according to the received second time offset parameter, and forwards the third service model including the first time offset parameter to the network through the first terminal device Equipment, the complexity of the network equipment side can be omitted, and the existing Uu port reporting service model can be reused.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is the time at which the service data of the second terminal device arrives relative to The time offset of the predefined second time reference point
  • the method further includes: the network device receives a second time offset parameter from the first terminal device, where the second time offset parameter is a subframe of DFN#0 #0 is the time offset relative to the predefined first time reference point.
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the first time reference point includes the subframe #0 of SFN#0.
  • the resource allocation information is SLCG configuration.
  • a method for obtaining SL resources includes: a second terminal device generates a third service model, the third service model is used to request to obtain SL resources, and the third service model includes a time offset parameter The time offset parameter is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the second terminal device sends the third terminal device to the first terminal device.
  • Business model is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the second terminal device sends the third terminal device to the first terminal device.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is a relative time when the service data transmitted by the second terminal device arrives. The time offset from the predefined first time reference point.
  • the second terminal device determines the first time offset parameter according to the received second time offset parameter, and forwards the third service model including the first time offset parameter to the network through the first terminal device Equipment, the complexity of the network equipment side can be omitted, and the existing Uu port reporting service model can be reused.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is a time at which the service data of the second terminal device arrives relative to Time offset of the pre-defined second time reference point
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the method before the second terminal device sends the third service model to the first terminal device, the method further includes: the second terminal device receives from the first terminal device The second time offset parameter of the device, where the second time offset parameter is the time offset of the subframe #0 of DFN#0 relative to the predefined first time reference point.
  • the first time reference point includes subframe #0 of SFN#0.
  • the method further includes: the second terminal device receiving the SL CG configuration from the first terminal device.
  • a method for obtaining SL resources includes: a second terminal device generates a third service model, the third service model is used to request SL resources, and the third service model includes a third time offset Parameter, the third time offset parameter is the time offset of the arrival time of the service data of the second terminal device with respect to the predefined second time reference point; the second terminal device sends the third terminal device to the first terminal device.
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the method further includes: the second terminal device receiving the SL CG configuration forwarded by the first terminal device.
  • a communication device for acquiring SL resources includes a processing unit and a transceiving unit; the transceiving unit is used to receive first information from a second terminal device, and the first information is used to request SL resources
  • the processing unit is used to generate second information based on the first information, and the second information carries the identification information of the second terminal device for requesting the SL resource for the second terminal device; the transceiver unit is also used for Send the second information to the network device.
  • the identification information of the second terminal device includes third information for identifying the second terminal device, or the first information for identifying the second terminal device Third information and fourth information used to identify the terminal device group to which the second terminal device belongs.
  • the third information includes one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information includes a group identifier or index of the terminal device group.
  • the first information includes a first BSR
  • the second information includes a second BSR generated based on the first BSR
  • the transceiver unit is further configured to receive DCI from the network device, where the DCI includes first indication information and a first SCI, and the first indication information is used to indicate The first SL resource, the first SL resource is used to transmit the first SCI; the transceiver unit sends the first SCI to the second terminal device through the first SL resource, and the first SCI includes the second indication information and the first SCI.
  • Two SCI The second indication information is used to indicate the second SL resource, the second SL resource is used to transmit the second SCI, the second SCI is used to indicate the third SL resource, and the third SL resource is used for the first SL resource.
  • the terminal equipment transmits service data.
  • the transceiver unit is further configured to receive DCI from the network device, where the DCI is used to indicate SL resources; and the processing unit is further configured to receive the SL resources indicated by the DCI.
  • the resource generates a second SCI; the transceiver unit is also used to send a second SCI to the second terminal device, the second SCI is used to indicate a third SL resource, and the third SL resource is used for the second terminal device to transmit service data , And the third SL resource is included in the SL resource indicated by the DCI.
  • the DCI further includes third information for identifying the second terminal device and/or a third information for identifying the terminal device group to which the second terminal device belongs. Four information.
  • the first information includes a first business model
  • the second information includes a second business model generated based on the first business model
  • the first service model further includes a first time offset parameter, and the first time offset parameter is the relative time when the service data of the second terminal device arrives. The time offset from the predefined first time reference point.
  • the transceiver unit before the transceiver unit receives the first information from the second terminal device, the transceiver unit is further configured to send the second time offset to the second terminal device Parameter, the second time offset parameter is the time offset of the subframe #0 of DFN#0 relative to the predefined first time reference point.
  • the first service model further includes a third time offset parameter, and the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the second service model further includes a first time offset parameter, the first time offset parameter is used to indicate the relative time when the service data of the second terminal device arrives
  • the processing unit is further configured to determine the first time offset parameter according to the third time offset parameter.
  • the first service model further includes a third time offset parameter
  • the third time offset parameter is the relative time when the service data of the second terminal device arrives.
  • the transceiver unit is further configured to send a second time offset parameter to the network device, where the second time offset parameter is relative to subframe #0 of the DFN#0 The time offset from the predefined first time reference point.
  • the first time reference point includes the subframe #0 of the system frame number SFN#0.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of GNSS.
  • the transceiver unit is further configured to receive the SLCG configuration from the network device, and the SLCG also carries third information for identifying the second terminal device and /Or fourth information used to identify the terminal device group to which the second terminal device belongs; the transceiver unit is also used to forward the SLCG configuration to the second terminal device.
  • a communication device for acquiring SL resources includes a transceiver unit; the transceiver unit is used to receive a third service model from a second terminal device, and the third service model is used to request SL resources,
  • the third service model includes a time offset parameter, and the time offset parameter is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the transceiver unit also Used to forward the third service model to the network device.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is a relative time when the service data transmitted by the second terminal device arrives. The time offset from the predefined first time reference point.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is the time at which the service data of the second terminal device arrives relative to The time offset of the predefined second time reference point
  • the transceiver unit is further configured to send the second time offset parameter to the network device, where the second time offset parameter is relative to subframe #0 of DFN#0 The time offset of the predefined first time reference point.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of GNSS.
  • the transceiver unit before the transceiver unit is used to receive the third service model from the second terminal device, the transceiver unit is further configured to send the second terminal device to the second terminal device.
  • the time offset parameter, the second time offset parameter is the time offset of the subframe #0 of the DFN#0 relative to the predefined first time reference point.
  • the first time reference point includes subframe #0 of SFN#0.
  • the transceiver unit is further configured to receive the SLCG configuration from the network device; the transceiver unit is also configured to forward the SLCG configuration to the second terminal device.
  • a communication device for obtaining SL resources includes a processing unit and a transceiving unit; the transceiving unit is used to receive a third service model from a second terminal device, and the third service model is used to request SL resources, the first service model includes a third time offset parameter, and the third time offset parameter is a time offset of the arrival time of the service data of the second terminal device with respect to a predefined second time reference point;
  • the processing unit is configured to generate a fourth service model based on the first service model, the fourth service model including a first time offset parameter, the first time offset parameter is determined by the third time offset parameter, and the second A time offset parameter is the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the transceiver unit is also used to send the fourth service model to the network device.
  • the first time reference point includes subframe #0 of SFN#0
  • the second time reference point includes subframe #0 of DFN#0
  • GNSS an absolute point in time
  • the transceiving unit is also used to receive the SLCG configuration from the network device; the transceiving unit is also used to forward the SLCG to the second terminal device Configuration.
  • a communication device in a twelfth aspect, includes a processing unit and a transceiving unit; the processing unit is used to determine that the configuration of a second terminal device SL fails, and the second terminal device and the first terminal device are the same terminal device Group; the transceiver unit sends third indication information to the network device, the third indication information is used to indicate that the configuration of the second terminal device SL fails, or the third indication information is used to indicate that the configuration of the terminal device group SL fails.
  • the processing unit is configured to determine that the configuration of the second terminal device SL fails, including: the transceiving unit is configured to receive data from the second terminal device based on The SL configuration failure indication of the second terminal device determines that the SL configuration of the second terminal device has failed; or the transceiver unit is configured to determine the first SL configuration failure indication from the second terminal device when the timer expires and still does not receive the SL configuration failure indication from the second terminal device. 2. The terminal device SL configuration failed.
  • the processing unit is used to determine that the configuration of the second terminal device SL fails Previously, the transceiver unit was also used to send an RRC reconfiguration complete message to the network device, where the RRC reconfiguration complete message is used to indicate that the first terminal device SL is successfully configured.
  • the processing unit if the third indication information is used to indicate that the configuration of the terminal device group SL fails, the processing unit is used to determine that the configuration of the second terminal device SL fails After that, the processing unit is also used to trigger RRC re-establishment.
  • the third indication information if the third indication information is used to indicate that the second terminal device SL configuration fails, the third indication information also carries the identity of the second terminal device information.
  • the transceiving unit before the transceiving unit is used to send the first indication information to the network device, the transceiving unit is further used to send the terminal device group information to the network device.
  • Group information includes one or more of the following: the group identifier of the terminal device group, the frequency information of the terminal device group, the L2 identifier of each terminal device in the terminal device group, and each terminal device group in the terminal device group. The group ID or index of the terminal device.
  • the transceiving unit is also used to receive the measurement result from the second terminal device; the transceiving unit is also used to send the measurement result and the measurement result to the network device The identification information of the second terminal device.
  • the identification information of the second terminal device includes third information used to identify the second terminal device, or, used to identify the second terminal device The third information of and the fourth information used to identify the terminal device group to which the second terminal device belongs.
  • the third information includes one or more of the following: the L2 identifier of the second terminal device, the group identifier or index of the second terminal device .
  • the fourth information includes a group identifier or index of the terminal device group.
  • a communication device for acquiring SL resources, the communication device including a processing unit and a transceiving unit; the transceiving unit is configured to receive second information from a first terminal device, and the second information carries a second terminal Device identification information, the second information is used to request SL resources for the second terminal device, the second information is generated by the first terminal device based on the first information from the second terminal device; the processing unit is used to Generate resource allocation information according to the second information; the transceiver unit is further configured to send the resource allocation information to the first terminal device.
  • the identification information includes third information used to identify the second terminal device, or third information used to identify the second terminal device and Fourth information used to identify the terminal device group to which the second terminal device belongs.
  • the third information includes one or more of the following: the L2 identifier of the second terminal device, the group identifier or index of the second terminal device .
  • the fourth information includes a group identifier or index of the terminal device group.
  • the first information includes a first BSR
  • the second information includes a second BSR generated based on the first BSR
  • the resource allocation information is DCI
  • the DCI includes first indication information and a first SCI
  • the first indication information is used to indicate the first SL resource
  • the first SL resource is used to transmit the first SCI
  • the first SCI includes second indication information and a second SCI
  • the second indication information is used to indicate a second SL resource
  • the second SL resource is used to transmit the first SCI.
  • Two SCI, the second SCI is used to indicate the third SL resource, and the third SL resource is used for the second terminal device to transmit service data.
  • the resource allocation information is DCI
  • the DCI is used to indicate SL resources
  • the SL resources include a third SL resource
  • the third SL resource is used for the The second terminal device transmits service data.
  • the DCI further includes third information for identifying the second terminal device and/or for identifying the terminal device group to which the second terminal device belongs The fourth message.
  • the first information includes a first business model
  • the second information includes a second business model generated based on the first business model
  • the first service model further includes a first time offset parameter, and the first time offset parameter is the arrival of the service data of the second terminal device The time offset relative to the pre-defined first time reference point.
  • the first service model further includes a third time offset parameter, and the third time offset parameter is the arrival of the service data of the second terminal device The time offset relative to the predefined second time reference point;
  • the second service model further includes a first time offset parameter, the first time offset parameter is used to indicate the arrival of the service data of the second terminal device The time offset relative to the predefined first time reference point, and the third time offset parameter is determined according to the first time offset parameter.
  • the first service model further includes a third time offset parameter
  • the third time offset parameter is the arrival of the service data of the second terminal device The time offset relative to the predefined second time reference point
  • the transceiver unit is further configured to receive a second time offset parameter from the first terminal device
  • the second time offset parameter is a sub-file of DFN#0 The time offset of frame #0 relative to the predefined first time reference point.
  • the first time reference point includes the subframe #0 of SFN#0.
  • the second time reference point includes the subframe #0 of the DFN#0 or an absolute time point of GNSS.
  • the resource allocation information is the SL CG configuration
  • the SL CG also carries third information for identifying the second terminal device and/or for identifying Fourth information of the terminal device group to which the second terminal device belongs.
  • a communication device for acquiring SL resources includes a processing unit and a transceiver unit; the transceiver unit is configured to receive a third service model forwarded by a first terminal device from a second terminal device, and The third service model is used to request SL resources, the third service model includes a time offset parameter, and the time offset parameter is used to determine the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference The time offset of the point; the processing unit is also used to generate resource allocation information according to the third service model; the transceiver unit is also used to send the resource allocation information to the first terminal device.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is the arrival of the service data transmitted by the second terminal device. The time offset relative to the pre-defined first time reference point.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is the arrival time of the service data of the second terminal device The time offset relative to the predefined second time reference point
  • the transceiver unit is further configured to receive a second time offset parameter from the first terminal device, where the second time offset parameter is a subframe of DFN#0 #0 is the time offset relative to the predefined first time reference point.
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the first time reference point includes subframe #0 of SFN#0.
  • the resource allocation information is SL CG configuration.
  • a communication device for obtaining SL resources includes a processing unit and a transceiver unit; the processing unit is used to generate a third service model, and the third service model is used to request to obtain SL resources.
  • the third service model includes a time offset parameter, and the time offset parameter is used to determine the time offset of the arrival time of the service data transmitted by the second terminal device relative to the predefined first time reference point; the transceiver unit is used for Send the third service model to the first terminal device.
  • the time offset parameter is a first time offset parameter
  • the first time offset parameter is the arrival of the service data transmitted by the second terminal device. The time offset relative to the pre-defined first time reference point.
  • the time offset parameter is a third time offset parameter
  • the third time offset parameter is the arrival time of the service data of the second terminal device The time offset relative to the pre-defined second time reference point
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the transceiving unit before the transceiving unit is used to send the third service model to the first terminal device, the transceiving unit is further used to receive a message from the first terminal device.
  • a second time offset parameter where the second time offset parameter is the time offset of the subframe #0 of DFN#0 relative to the predefined first time reference point.
  • the first time reference point includes the subframe #0 of SFN#0.
  • the transceiver unit is further configured to receive the SLCG configuration from the first terminal device.
  • a communication device for acquiring SL resources includes a processing unit and a transceiver unit; the processing unit is used to generate a third service model, the third service model is used to request SL resources, and the first The three-service model includes a third time offset parameter, and the third time offset parameter is the time offset of the arrival time of the service data of the second terminal device with respect to the predefined second time reference point; the transceiver unit is used for Send the third service model to the first terminal device.
  • the second time reference point includes subframe #0 of DFN#0 or an absolute time point of GNSS.
  • the transceiver unit is further configured to receive the SLCG configuration forwarded by the first terminal device.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions or data in the memory to implement the method in any one of the foregoing first aspect to the fourth aspect and any one of the first aspect to the fourth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a first terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system configured in the first terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including a processor.
  • the processor is coupled with the memory, and can be used to execute instructions or data in the memory to implement the method in any one of the foregoing fifth aspect to the sixth aspect and the fifth aspect to the sixth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system configured in a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions or data in the memory to implement the method in any one of the foregoing seventh aspect to the eighth aspect and the seventh aspect to the eighth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a second terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system configured in the second terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and send a signal through the output circuit, so that the processor executes any one of the first aspect to the eighth aspect and the first aspect to the eighth aspect. The method in the way.
  • the above-mentioned processor can be one or more chips
  • the input circuit can be an input pin
  • the output circuit can be an output pin
  • the processing circuit can be a transistor, a gate circuit, a flip-flop, and various logic circuits, etc.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to the transmitter and transmitted by the transmitter
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter to execute any one of the first to eighth aspects and any one of the possible implementation manners of the first to eighth aspects In the method.
  • processors There are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • sending instruction information may be a process of outputting instruction information from the processor
  • receiving capability information may be a process of the processor receiving input capability information.
  • the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the foregoing twenty-first aspect may be one or more chips, or may also be a chip system.
  • the processor in the processing device can be implemented by hardware or software.
  • the processor may be a logic circuit, integrated circuit, etc.; when implemented by software, the processor may be a general-purpose processor, which is implemented by reading the software code stored in the memory, and the memory may Integrated in the processor, can be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes the execution of the first aspect to The eighth aspect and the method in any one of the possible implementation manners of the first to eighth aspects.
  • a computer program also called code, or instruction
  • a computer-readable storage medium stores a computer program (also called code, or instruction) when it runs on a computer, causing the computer to execute the above-mentioned
  • a computer program also called code, or instruction
  • a communication system including: the aforementioned network device, and/or, the aforementioned first terminal device and second terminal device.
  • Fig. 1 is a schematic diagram of a communication system of a method provided in an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for obtaining SL resources provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for obtaining SL resources according to another embodiment of the present application.
  • Fig. 4 is a schematic diagram of a first BSR provided by an embodiment of the present application.
  • Fig. 5 is a schematic diagram of a second BSR provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of time offset parameters provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a method for obtaining SL resources according to another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of the SL communication environment of each terminal device in the terminal device group provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD frequency division duplex
  • UMTS time division duplex
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).
  • the technical solution provided in this application can also be applied to machine type communication (MTC), inter-machine communication long-term evolution technology (Long Term Evolution-machine, LTE-M), and device to device (device to device, D2D) networks , Machine-to-machine (M2M) network, Internet of things (IoT) network or other networks.
  • MTC machine type communication
  • LTE-M inter-machine communication long-term evolution technology
  • D2D device to device
  • M2M Machine-to-machine
  • IoT Internet of things
  • the IoT network may include, for example, the Internet of Vehicles.
  • V2X vehicle to other devices
  • V2X vehicle to X
  • X can represent anything
  • the V2X may include: vehicle to vehicle (V2V) communication, and the Infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian communication
  • V2N vehicle to network
  • the network device may be any device with a wireless transceiver function.
  • This equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC) , Base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc., can also be 5G, such as NR ,
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) The function of the layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), and the CU can also be divided into network equipment in the core network (core network, CN), which is not limited in the embodiment of this application. .
  • the terminal equipment may be referred to as user equipment (UE), terminal (terminal), mobile station (MS), mobile terminal (mobile terminal), etc.; the terminal equipment may also be A radio access network (RAN) communicates with one or more core networks.
  • the terminal device can also be called an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, vehicles with communication capabilities, wearable devices, and terminal devices in the future 5G network.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Fig. 1 is a schematic diagram of a communication system suitable for the method provided in the embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1, and the communication system 100 includes at least two terminal devices, such as the terminal device 121 and the terminal device shown in FIG. 122.
  • the wireless direct communication link formed between the terminal device 121 and the terminal device 122 may be referred to as SL.
  • the network device 111 can schedule the SL resources required for the terminal device 121 and/or the terminal device 122 for communication and transmission in the SL, and the SL resource can be used for the unicast, multicast, and broadcast types of the terminal device 121 and/or the terminal device 122 Transmission of business data.
  • the network device 111 may schedule SL resources for the terminal device 122 through the terminal device 121, and the SL resource may be used for the transmission of unicast, multicast, and broadcast service data of the terminal device 122.
  • the network device can also schedule SL resources for more terminal devices for the transmission of service data such as unicast and multicast of the terminal devices.
  • the terminal device can perform unicast communication, multicast communication, and broadcast communication on the SL.
  • the so-called unicast communication is one-to-one data transmission between two terminal devices.
  • the terminal device 121 uses unicast to send data to the terminal device 122. In this case, only the terminal device 122 can receive the data.
  • the so-called multicast communication means that the data sent by any terminal device in the terminal device group in a multicast manner can be received by other terminal devices in the terminal device group.
  • the terminal device 121 uses multicast to send data.
  • the terminal device 122 and the terminal device 121 belong to the same terminal device group, the terminal device 122 can receive the data sent by the terminal device 121.
  • terminal device group may include more terminal devices.
  • the data sent by the terminal device 121 can be received by more terminal devices in the terminal device group including the terminal device 122.
  • the communication process between the terminal device 122 and the network device 111 is implemented by the terminal device 121.
  • the terminal device 121 may serve as a relay station for the terminal device 122 to request SL resources from the network device 111 and the network device 111 to schedule SL resources for the terminal device 122.
  • FIG. 1 is only for ease of understanding, and schematically shows the terminal device 121, the terminal device 122, and the network device 111, but this should not constitute any limitation to this application, and there may be more numbers in the communication system.
  • the network device may also include a greater or lesser number of terminal devices, which is not limited in the embodiment of the present application.
  • the terminal device sends a buffer status report (BSR) to the network device, and the network device provides SL resource scheduling to the terminal device based on the BSR, and the terminal device uses the SL resource to complete the current data transmission.
  • BSR buffer status report
  • the terminal device sends a service model to the network device, and the network device provides periodic SL configuration authorization (configured grant, CG) resources to the terminal device based on the service model, and the terminal device can directly use the SL CG resource after receiving the SL CG resource.
  • the SL CG resource transmits service data without requesting network equipment scheduling or configuration.
  • a terminal device such as the terminal device 122 in FIG. 1 requests the network device to obtain SL resources through another terminal device (such as the terminal device 121 in FIG. 1)
  • the network device may not be able to distinguish the SL resources. Which terminal device the request comes from, so that the SL resources cannot be accurately scheduled.
  • the terminal device 122 may send a BSR to the network device through the terminal device 121 belonging to the same terminal device group to request to obtain SL resources. The terminal device 122 first sends the BSR to the terminal device 121, and then the terminal device 121 forwards the BSR to the network device.
  • the BSR sent by the terminal device 122 to the terminal device 121 carries destination identification information, and the destination identification information may be, for example, a group identification.
  • the terminal device 121 does not know the SL service of the terminal device 122 that is not related to the terminal device 121, so the terminal device 121 cannot understand the destination identification information in the BSR from the terminal device 122. Further, the terminal device 121 forwards the BSR to the network device, and the network device cannot identify whether the BSR is generated by the terminal device 121 or the terminal device 122. Therefore, the network device cannot accurately schedule SL resources for the terminal device 122, resulting in low reliability of the second terminal device in transmitting service data and poor service experience.
  • the second terminal device When the second terminal device requests SL CG resource configuration from the network device through the first terminal device, the status of the second terminal device and the first terminal device and the connected network device may be different, so the configuration related to synchronization with the network device may be different accordingly. It may be different. In this case, when the network device performs resource location indication based on synchronization with the first terminal device, the resource location determined by the second terminal device based on the resource location indication information forwarded by the first terminal device will shift. In view of this, the present application provides a method for obtaining SL resources, so that network devices can accurately schedule resources for terminal devices, so as to improve transmission reliability.
  • "used to indicate” may include used for direct indication and used for indirect indication, and may also include explicit indication and implicit indication.
  • the information indicated by a certain piece of information is called information to be indicated.
  • the information to be indicated can be directly indicated, such as the information to be indicated or the information to be indicated.
  • the information to be indicated can also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, it is also possible to use a pre-arranged (for example, protocol stipulation) whether there is a certain cell to indicate the information to be indicated, so as to reduce the indication overhead to a certain extent.
  • a pre-arranged for example, protocol stipulation
  • the first, second, and various numerical numbers are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different time offset parameters, different information, and so on.
  • the pre-definition may be, for example, a protocol pre-defined or artificial pre-defined.
  • Pre-defined can be implemented by pre-saving corresponding codes, tables, or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices), and this application does not limit the specific implementation manners thereof.
  • saving may refer to storing in one or more memories.
  • the one or more memories may be provided separately, or integrated in an encoder or decoder, a processor, or a communication device.
  • the one or more memories may also be partly provided separately, and partly integrated in a decoder, a processor, or a communication device.
  • the type of the memory can be any form of storage medium, which is not limited in this application.
  • the “protocols” involved in the embodiments of the present application may refer to standard protocols in the communication field, for example, may include LTE protocol, NR protocol, and related protocols applied to future communication systems, which are not limited in this application.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • And/or describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • At least one of a, b, and c can mean: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a , B, and c.
  • a, b, and c can be single or multiple.
  • the embodiments shown below take the interaction between the network device, the first terminal device, and the second terminal device as an example to describe in detail the method provided in the embodiment of the present application. But this should not constitute any limitation to this application.
  • the terminal device shown in the following embodiments can be replaced with a component (such as a chip, a chip system, or a circuit, etc.) configured in the terminal device (such as the first terminal device or the second terminal device).
  • the network device shown in the following embodiments can also be replaced with a component (such as a chip, a chip system, or a circuit, etc.) configured in the network device.
  • the embodiments shown below do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program can be run and recorded with the code of the method provided in the embodiments of the application to provide the method according to the embodiments of the application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • FIG. 2 shows a schematic flowchart of a method for obtaining SL resources provided by an embodiment of the present application. As shown in FIG. 2, the method 200 may include step 210 to step 230, and each step is described in detail below.
  • step 210 the second terminal device sends the first information to the first terminal device.
  • the embodiment of the present application does not specifically limit the relationship between the first terminal device and the second terminal device.
  • the first terminal device and the second terminal device may belong to the same terminal device group, and the first terminal device and the second terminal device may not belong to the same terminal device group.
  • the terminal device group described here can be a real terminal device group, such as a terminal device group in a multicast scenario.
  • the member terminal devices in the group can communicate with the head terminal device (or anchor terminal device).
  • the network device requests SL resources; it can also be a virtual terminal device group.
  • multiple terminal devices request SL resources from the network device through a relay, and the multiple terminal devices and the relay can form a terminal device group .
  • This application does not limit the specific form of the terminal device group. In an implementation manner, it can be considered that all second terminal devices that request SL resources from the network device through the first terminal device belong to the same terminal device group as the first terminal device.
  • the terminal device group is a terminal device group in a multicast scenario
  • the above-mentioned first terminal device may be the head terminal device in the terminal device group
  • the above-mentioned second terminal device may be the terminal device group in the terminal device group.
  • the terminal device group may include at least two terminal devices, such as the first terminal device and the second terminal device described above.
  • the terminal device group may also include other terminal devices in addition to the first terminal device and the second terminal device.
  • This application does not limit this.
  • the creation of a terminal device group may be triggered by an application (application, APP) or an access layer (access stratum, AS).
  • the embodiment of the present application does not specifically limit the trigger condition for creating a terminal device group.
  • the embodiment of the present application does not specifically limit the method for determining the head terminal device in the terminal device group.
  • the head terminal device in the terminal device group can be the initiator of the establishment of the terminal device group, it can also be a terminal device in the terminal device group that has the ability to be the head terminal device, or it can be a terminal device preset by the user. It can also be a terminal device selected by the application layer, and so on. For the sake of brevity, I will not list them all here.
  • the second terminal device may send resource request information to the first terminal device.
  • the resource request information sent by the second terminal device to the first terminal device is recorded as the first information.
  • the first information may be BSR;
  • the first information may be a business model.
  • the first terminal device When the first terminal device receives the first information from the second terminal device, the first terminal device needs to identify the second terminal device.
  • the embodiment of the application does not specifically limit the identification method, for example, it may be:
  • Method 1 The second terminal device sends the first information to the first terminal device using the L2 identifier assigned by itself as the source identifier, the source identifier is used to communicate with the first terminal device, and the first terminal device identifies the second terminal through the source identifier equipment.
  • the second terminal device may use the group identifier of the terminal device group as the destination identifier, and use the L2 identifier assigned by the second terminal device to the terminal device group Is the source identifier, and sends the first information to the first terminal device.
  • the first terminal device recognizes which terminal device group it is by using the destination identifier, and which member terminal device of the terminal device group the second terminal device is recognized by the source identifier.
  • the second terminal device uses the L2 identifier allocated by the first terminal device for the unicast connection as the destination identifier, and uses the second terminal device as the destination identifier.
  • the L2 identifier allocated for the unicast connection is the source identifier, and the first information is sent to the first terminal device.
  • the first terminal device identifies which terminal device it is through the destination identifier and/or source identifier.
  • Manner 2 The first terminal device first allocates the SL resource for sending the first information to the first terminal device, and the first terminal device can identify the second terminal device through the SL resource.
  • the SL resource used to transmit the first information may be pre-allocated, and the SL resource may be, for example, a physical sidelink share channel (PSSCH) or a physical sidelink control channel (PSCCH). Resources in. Since the first terminal device allocates the SL resource to the second terminal device in advance, the first terminal device can identify the second terminal device that sent the first information when receiving the first information on the SL resource.
  • PSSCH physical sidelink share channel
  • PSCCH physical sidelink control channel
  • SL resources used to transmit the first information listed above are only examples, and should not constitute any limitation to this application. This application does not limit the SL resources for transmitting the first information.
  • the embodiment of the present application does not specifically limit the manner in which the second terminal device sends the first information to the first terminal device. For example, it may be sent in a multicast manner, or may be sent in a unicast manner.
  • the network device may provide SL configuration for one or more terminal devices including the first terminal device and the second terminal device.
  • the embodiment of the present application does not specifically limit the manner of providing the SL configuration. Steps 310 to 350 in the method 300 described later in detail describe the specific process of SL configuration. For the sake of brevity, it will not be described in detail here.
  • step 220 the first terminal device generates second information based on the first information.
  • the resource request information generated by the first terminal device based on the first information is recorded as the second information.
  • the form of the second information and the form of the first information may be the same or different. The embodiments of this application do not limit this.
  • the first information may be the BSR, or it may be carried in a cell of the BSR.
  • the embodiment of the present application only takes the first information being the first BSR as an example for description.
  • the first terminal device generates a BSR to be sent to the network device based on the received BSR.
  • the BSR received by the first terminal device from the second terminal device is recorded as the first BSR
  • the BSR generated by the first terminal device based on the first BSR to be sent to the network device is recorded as the first BSR. It is the second BSR.
  • the first information may be a business model or can be carried in a business model.
  • the embodiment of the present application only takes the first information being the first business model as an example for description.
  • the first terminal device generates a service model to be sent to the network device based on the received service model.
  • the service model received by the first terminal device from the second terminal device is recorded as the first service model, and the first terminal device is generated based on the first service model to be sent to the network device.
  • the business model of is recorded as the second business model.
  • the second information generated by the first terminal device based on the first information may carry the identification information of the second terminal device.
  • the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information is used to identify the terminal device in the terminal device group.
  • the second terminal device the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information is used to identify the terminal device in the terminal device group.
  • the embodiment of the present application does not specifically limit the form of the identification information of the second terminal device.
  • the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information may include third information for identifying the second terminal device, where the first terminal device may be a relay Device, the second terminal device requests the SL resource from the network device through the first terminal device.
  • the identification information of the second terminal device carried in the second information generated by the first terminal device based on the first information may include third information used to identify the second terminal device and fourth information used to identify the terminal device group. Information, where the first terminal device and the second terminal device belong to the same terminal device group, and the second terminal device requests SL resources from the network device through the first terminal device.
  • the third information may include, for example, one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information may include, for example, one or more of the following: the group identification or index of the terminal device group.
  • the group identifier or index of the second terminal device may be allocated by the first terminal device, or may be allocated by the network device, or may also be reported by the first terminal device to the network device of the member terminals of the terminal device group.
  • the equipment information is arranged in order.
  • the embodiment of the present application does not specifically limit the allocation method of the group identifier or index of the second terminal device.
  • FIG. 2 is only for ease of understanding, and shows a situation in which a first terminal device interacts with a second terminal device.
  • the number of second terminal devices is not limited to one.
  • the first terminal device may communicate with one or more second terminal devices, receive first information from one or more second terminal devices, and generate one or more second terminal devices based on the received one or more first information information.
  • the first terminal device may generate one piece of second information based on each piece of first information, so as to correspond to one second terminal device.
  • the first terminal device may also generate a piece of second information based on a plurality of pieces of first information, and carry and combine the identification information of each second terminal device in the pieces of first information through a piece of second information.
  • Send to the network device does not limit the correspondence between the quantity of the first information and the quantity of the second information.
  • the present application does not limit the correspondence between the number of second terminal devices and the number of second information.
  • the embodiments of the present application are only for ease of understanding and description, and a second terminal device is taken as an example to illustrate the method of acquiring SL resources, and the number of second terminal devices should not be any limitation.
  • the embodiment of the present application does not limit the specific implementation manner in which the first terminal device generates the second information based on the first information.
  • the first terminal device can generate a new information, that is, the second information, by itself according to the received first information.
  • the first terminal device may also modify or add some cells in the received first information to generate second information.
  • the identification information of multiple second terminal devices in the multiple pieces of first information may be combined into one second piece of information, or the first terminal device may receive the first piece of information.
  • an indication field of the identification information is added to the first information to add the identification of the second terminal device to the first information, so as to obtain the second information.
  • the first terminal device may even directly forward the received first information to the network device. In this case, the first information and the second information are the same information, and the generating step of step 220 can be omitted.
  • step 230 the first terminal device sends the second information to the network device.
  • the network device receives the second information from the first terminal device.
  • the resource used by the first terminal device to send the second information to the network device may be, for example, a resource dynamically scheduled by the network device, or may be an authorized resource pre-configured by the network device, which is not limited in this application.
  • the second information can be a BSR or a business model.
  • the first terminal device may send the second information through the resource used to transmit the BSR or service model.
  • the network device After receiving the second information from the first terminal device, the network device can allocate SL resources to the second terminal device based on the second information.
  • the network device may generate and send resource allocation information to the first terminal device, where the resource allocation information includes indication information used to indicate SL resources allocated to the second terminal device.
  • the SL resource indicated by the resource allocation information may be allocated to the second terminal device, or may be allocated to the first terminal device and the second terminal device.
  • the resource allocation information may be one piece of information or multiple pieces of information.
  • the resource allocation information may include instructions for instructing the first terminal device to send sidelink control information (SCI) to the second terminal device.
  • SCI sidelink control information
  • the indication information of the SL resource and the SCI sent by the first terminal device to the second terminal device, or the resource allocation information only includes the SCI sent by the first terminal device to the second terminal device.
  • the resource allocation information may further include indication information for indicating SL resources, and the SL resources include SL resources allocated to the second terminal device.
  • the first terminal device generates the second information based on the first information from the second terminal device, and the second information carries the identification information of the second terminal device.
  • the network device can identify, according to the identification information of the second terminal device, that the SL resource requested by the second information is used for the second terminal device to transmit service data, so that it can be more accurate, Reasonably allocate SL resources to the second terminal device.
  • different terminal devices in different groups can be allocated different SL resources.
  • different member terminal devices in the terminal device group can be allocated differently. SL resources to avoid resource conflicts and help improve the reliability of communication.
  • the first terminal device and the second terminal device may be, for example, terminal devices belonging to the same terminal device group.
  • the first terminal device is the head terminal device in the terminal device group
  • the second terminal device is a member terminal in the terminal device group. equipment.
  • the method provided in this application is also applicable to other scenarios of V2X, such as broadcast communication and unicast communication. In other words, the first terminal device and the second terminal device do not necessarily belong to the same terminal device group.
  • FIG. 3 is a schematic flowchart of a method for obtaining SL resources according to another embodiment of the present application.
  • the embodiment shown in FIG. 3 describes in more detail an example in which the first information mentioned in step 210 is the first BSR.
  • the method 300 may include step 310 to step 390, and each step is described in detail below.
  • step 310 the first terminal device and the second terminal device complete the establishment of the terminal device group.
  • the establishment of the terminal device group may be triggered by APP or AS, which is not specifically limited in the embodiment of the present application.
  • the head terminal device needs to be determined. As described above, there may be multiple ways to determine the head terminal device, which is not specifically limited in the embodiment of the present application.
  • the head terminal device can learn the information of the member terminal devices in the terminal device group.
  • the information of the member terminal devices in the terminal device group may include the number of member terminal devices in the terminal device group, or the L2 identifier allocated by each terminal device in the terminal device group for communication in the terminal device group.
  • the L2 identifier can be used as the source identifier of each terminal device in the terminal device group when transmitting service data in the group.
  • step 310 may be that a new member terminal device joins an existing terminal device group.
  • step 320 the first terminal device sends the information of the terminal device group to the network device.
  • the embodiment of the present application does not specifically limit the form of the information of the terminal device group.
  • the information of the terminal equipment group may include one or more of the following: the group identification of the terminal equipment group, the frequency information of the terminal equipment group, the L2 identification of each terminal equipment in the terminal equipment group, or The group identification or index, and the quality of service (QoS) requirements corresponding to the terminal device group.
  • QoS quality of service
  • the information of the terminal device group may include one or more of the following:
  • the L2 identifier or the group identifier or index of each terminal device, the QoS requirements corresponding to the unicast connection between each terminal device and the first terminal device, the L2 identifier of each terminal device in this scenario can be that each terminal device is each L2 identifiers respectively allocated by the unicast connection between the terminal device and the first terminal device.
  • step 330 the network device sends the SL configuration to the first terminal device, where the SL configuration is used to provide the SL configuration for each terminal device in the terminal device group.
  • the SL configuration may include one or more of the following configurations: SL resource pool configuration, SL radio bearer (RB) configuration, logical channel configuration, logical channel group configuration, and measurement configuration.
  • SL resource pool configuration SL radio bearer (RB) configuration
  • RB radio bearer
  • the SL configuration provided by the network device for the terminal device group may include the dedicated configuration provided for each terminal device in the terminal device group, or it may include the group configuration applicable to each terminal device in the terminal device group, which is not specifically described in the embodiment of this application. limited.
  • the SL configuration provided by the network device for each terminal device in the terminal device group may include: a dedicated configuration provided for each terminal device in the terminal device group and/or a group configuration applicable to each terminal device in the terminal device group.
  • the embodiment of the present application takes the configuration of the SL resource pool as an example for description.
  • the network device After receiving the information of the terminal device group sent by the first terminal device, the network device provides the SL resource pool configuration for each terminal device of the terminal device group. As mentioned above, the network device can configure an SL resource pool for each terminal device in the terminal device group, or it can configure an SL resource pool for multiple terminal devices in the terminal device group. There is no specific limitation.
  • the SL resource pool may include a sending resource pool used by a terminal device to send data and/or a receiving resource pool used by a second terminal device to receive data.
  • the SL resource pool uses the first terminal device as the synchronization source.
  • the network device may receive the difference between the SFN and the DFN sent from the first terminal device.
  • the difference between SFN and DFN may be the time difference, timing difference, or timing offset between SFN and DFN with the same frame number or subframe number on the same time axis, or the same frame number Or the difference in time length between the SFN and DFN of the subframe number from the same time reference point (such as an absolute time point).
  • the embodiments of this application do not limit this.
  • DFN is the DFN used by the first terminal device for broadcasting.
  • the DFN information may be included in a sidelink master information block (SL-MIB) broadcast by the first terminal device.
  • SL-MIB sidelink master information block
  • the difference between the SFN and DFN may include one or more of the following: the difference between the SFN frame boundary and the DFN frame boundary, and the difference between the SFN subframe boundary and the DFN subframe boundary, which is not limited in this embodiment of the application.
  • the difference between the SFN frame boundary and the DFN frame boundary can be understood as the time difference, timing difference, or time offset between the SFN frame boundary and the DFN frame boundary on the same time axis, or the distance between the SFN frame boundary and the DFN frame boundary at the same time reference point (such as A certain absolute point in time) time length difference.
  • the difference between the SFN subframe boundary and the DFN subframe boundary can be understood as the time difference, timing difference, or time offset between the SFN subframe boundary and the DFN subframe boundary on the same time axis, or the difference between the SFN subframe boundary and the DFN subframe boundary.
  • the difference in time length between the frame boundary and the same time reference point (such as an absolute time point).
  • the SL resource pool uses a global navigation satellite system (GNSS) as a synchronization source.
  • GNSS global navigation satellite system
  • step 340 after receiving the SL configuration sent by the network device, the first terminal device sends the SL configuration to the second terminal device.
  • the embodiment of the present application does not specifically limit the specific manner in which the first terminal device sends the SL configuration to the second terminal device.
  • the first terminal device may send the SL configuration to the second terminal device in a multicast manner, or may send the SL configuration through a unicast connection established with the second terminal device.
  • the first terminal device sends the SL configuration to the second terminal device in a multicast manner.
  • the SL configuration may include one or more of the following: a group configuration applicable to all member terminal devices in the terminal device group, the L2 identification of each terminal device in the terminal device group, and the respective configuration for each terminal device
  • the first terminal device may send the SL configuration to the second terminal device through the signaling radio bearer (SRB) of the terminal device group, or the first terminal device may send the SL configuration to the second terminal device through the user.
  • SRB signaling radio bearer
  • the first terminal device sends the SL configuration through a unicast connection established with the second terminal device
  • the SL configuration may include the dedicated configuration of the second terminal device and/or each terminal device in the terminal device group is applicable The group configuration.
  • the second terminal device After receiving the SL configuration, the second terminal device sends the indication information of the success or failure of the SL configuration to the first terminal device. This implementation manner will be described in detail below in conjunction with specific embodiments, which will not be described in detail here.
  • the network device stores the information of each terminal device in the terminal device group.
  • the steps 310 to 350 described above are an example in which the network device provides the SL configuration for the first terminal device and the second terminal device. Before the second terminal device requests resource scheduling from the network device through the first terminal device, the network device may also provide SL configurations for the first terminal device and the second terminal device.
  • the first terminal device and the second terminal device belong to the same terminal device group, the first terminal device is the head terminal device in the terminal device group, and the second terminal device is the terminal device group.
  • the member terminal device inside.
  • the SL configuration acquisition and SL resource acquisition of the member terminal devices in the terminal device group for the terminal device group are all obtained from the network device connected to the head terminal device through the head terminal device in the terminal device group. Even if the member terminal devices in the terminal device group are in the connected state, in the scenario of multicast communication, the member terminal devices in the terminal device group do not need to report the information of the terminal device group to the network device connected to it.
  • the member terminal devices in the terminal device group transmit service data in the terminal device group, they can send first information to the head terminal device to request SL resource scheduling.
  • steps 360 to 390 taking the first information as the first BSR as an example, the process of requesting SL resources by member terminal devices in the terminal device group is described in detail.
  • step 360 the second terminal device sends the first BSR to the first terminal device.
  • the first BSR includes a logical channel group (logical channel group, LCG) identifier (identifier, ID) and a buffer size corresponding to the LCG.
  • Figure 4 shows an example of the first BSR.
  • the first BSR includes LCG ID1 and corresponding buffer size 1, LCG ID2 and corresponding buffer size 2...LCG IDN and corresponding buffer size N,
  • octet octet, Oct
  • Oct2...OctN respectively indicate that 8 bits (bits) constitute a byte (type)
  • N is a positive integer greater than or equal to 1.
  • the first terminal device When the second terminal device sends the first BSR to the first terminal device, the first terminal device needs to identify the second terminal device.
  • the embodiment of the application does not specifically limit the identification method, for example, it may be:
  • the first terminal device can identify the second terminal device according to the source identifier and/or the destination identifier in the first BSR.
  • the second terminal device uses the group identifier of the terminal device group as the destination identifier and the L2 identifier assigned by the member terminal device for the terminal device group as the source identifier, and sends the first BSR to the first terminal device.
  • the first terminal device identifies which member terminal device in the terminal device group the second terminal device is through the source identifier.
  • the second terminal device sends the first BSR to the first terminal device in a unicast manner.
  • the second terminal device uses the first terminal device as the unicast between the first terminal device and the second terminal device.
  • the L2 identifier assigned by the connection is the destination identifier
  • the L2 identifier assigned by the second terminal device for the unicast connection is used as the source identifier
  • the first BSR is sent to the first terminal device.
  • the first terminal device recognizes which member terminal device the second terminal device is through the destination identifier and/or source identifier.
  • Manner 2 The first terminal device first allocates the SL resource for sending the first BSR to the second terminal device, and the first terminal device can identify the second terminal device through the SL resource.
  • the SL resources used to transmit the BSR may be pre-allocated, and the SL resources may be resources in the PSSCH or PSCCH, for example. Since the first terminal device allocates the SL resource to the second terminal device in advance, the first terminal device can identify the second terminal device that sent the first BSR when receiving the first BSR on the SL resource.
  • the first terminal first allocates SL resources for sending a first scheduling request (scheduling request, SR) to the second terminal, and the first terminal device identifies the second device terminal through the SL resource, and then allocates and sends the second terminal The SL resource of the first BSR, and then the second terminal device is identified through the SL resource of the first BSR.
  • SR scheduling request
  • SL resources used to transmit the BSR listed above are only examples, and should not constitute any limitation to this application. This application does not limit the SL resources for transmitting the BSR.
  • the embodiment of the present application does not specifically limit the manner in which the second terminal device sends the first BSR to the first terminal device. For example, it may be sent in a unicast manner or may be sent in a multicast manner.
  • step 370 the first terminal device generates a second BSR based on the first BSR, and sends the second BSR to the network device.
  • the second BSR generated by the first terminal device based on the first BSR may at least include the identification information of the second terminal device, the LCG ID included in the first BSR, and the buffer size corresponding to the LCG.
  • Figure 5 shows an example of the second BSR.
  • the second BSR includes LCG ID1 and corresponding buffer size 1, LCG ID2 and corresponding buffer size 2...LCG IDN and corresponding buffer size N,
  • the octet (octet, Oct) 1, Oct2, ... OctN in the figure respectively indicate that 8 bits (bits) form a byte (type), and N is a positive integer greater than or equal to 1.
  • the indication information and the UE indication information are the identification information of the second terminal device.
  • the embodiment of the present application does not specifically limit the form of the identification information of the second terminal device.
  • the identification information of the second terminal device may include third information for identifying the second terminal device and fourth information for identifying the terminal device group.
  • the third information may include one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information may include one or more of the following: the group identification or index of the terminal device group.
  • the group identifier or index of the second terminal device may be allocated by the first terminal device, or may be allocated by the network device, or may also be reported by the first terminal device to the network device of the member terminals of the terminal device group.
  • the equipment information is arranged in order.
  • the embodiment of the present application does not specifically limit the allocation method of the group identifier or index of the second terminal device.
  • the first BSR may carry identification information of the second terminal device, and the second terminal device sends the first BSR to the first terminal device.
  • the first terminal device does not need to perform additional processing on the received first BSR, and the first terminal device exists as a relay station and forwards the received first BSR to the network device.
  • the first terminal device may generate a second BSR based on each first BSR to correspond to a second terminal device.
  • the first terminal device may add the identification information of the second terminal device to the first BSR to obtain the second BSR.
  • the first terminal device may also generate a second BSR based on multiple first BSRs, and carry the information carried by the multiple first BSRs through one second BSR and send it to the network device.
  • This application does not limit the correspondence between the number of first BSRs and the number of second BSRs.
  • step 380 the network device sends resource allocation information to the first terminal device (#1).
  • step 390 the first terminal device sends corresponding resource allocation information to the second terminal device (#2).
  • the resource allocation information (#1) sent by the network device to the first terminal device is downlink control information (DCI).
  • DCI downlink control information
  • the first terminal device receives a DCI from a network device, the DCI includes first indication information and a first SCI, the first indication information is used to indicate a first SL resource, and the first SL resource is used for the first terminal
  • the device transmits the first SCI.
  • the first terminal device sends the first SCI to the second terminal device through the first SL resource
  • the first SCI includes second indication information and a second SCI
  • the second indication information is used to indicate the second SL resource
  • the second SL resource is used for the second terminal device to transmit the second SCI
  • the second SCI is used to indicate the third SL resource
  • the third SL resource is used for the second terminal device to transmit service data.
  • the first terminal device receives the DCI from the network device, the DCI includes a second SCI, the second SCI is used to indicate the third SL resource, and the third SL resource is used for the second terminal device to transmit service data.
  • the first terminal device After receiving the second SCI from the network device, the first terminal device requests the network device for the first SL resource used to transmit the first SCI and the second terminal device used to transmit the second SL resource of the second SCI .
  • the first terminal device receives DCI from the network device, where the DCI is used to indicate SL resources.
  • the first terminal device generates the second SCI according to the SL resource indicated by the DCI.
  • the first terminal device sends the second SCI to the second terminal device, the second SCI is used to indicate the third SL resource, the third SL resource is used for the second terminal device to transmit service data, and the third SL The resource is included in the SL resource indicated by the DCI.
  • the DCI may further include third information used to identify the second terminal device and/or fourth information used to identify the terminal device group. For example, if there are multiple member terminal devices in the terminal device group, the DCI also includes third information. For another example, if the first terminal device is the head terminal device of multiple different terminal device groups, and each terminal device group has only one member terminal device, the DCI further includes fourth information. For another example, if the first terminal device is the head terminal device of multiple different terminal device groups, and each terminal device group has multiple member terminal devices, the DCI further includes third information and fourth information.
  • the second terminal device obtains the configuration of the SL resource pool from the network device through the first terminal device, and sets a unified synchronization source when configuring the SL resource pool, so that the network device and the second terminal device Synchronization.
  • the second terminal device sends the first BSR to the first terminal device to obtain SL resources, the first terminal device generates the second BSR based on the first BSR, and the second BSR carries the identification information of the second terminal device.
  • the network device can recognize, according to the identification information of the second terminal device, that the SL resource requested by the second BSR is used for the second terminal device to transmit service data.
  • the network device can schedule SL resources for the second terminal device from the SL resource pool pre-configured for the second terminal device, so that the network device can accurately schedule SL resources for the second terminal device, which is beneficial to improve the second terminal device.
  • the reliability of the equipment to transmit service data is provided to transmit service data.
  • the second terminal device may also obtain the SL resource scheduling from the network device through the first terminal device, thereby achieving an enhancement of the coverage of the network device.
  • the unified management of the member terminal devices in the terminal device group by the network device is realized, which is beneficial to improving the reliability of multicast communication.
  • FIG. 7 is a schematic flowchart of a method for obtaining SL resources according to another embodiment of the present application.
  • the embodiment shown in FIG. 7 describes in more detail an example in which the first information mentioned in step 210 is the first business model.
  • the method 700 may include steps 710 to 750, and each step is described in detail below.
  • step 710 the network device configures SL configurations for the first terminal device and the second terminal device.
  • the method for the network device to configure the SL configuration for the first terminal device and the second terminal device in step 710 is the same as the method described in step 310 to step 350 in FIG. 3, and will not be repeated here.
  • step 720 the second terminal device sends the first service model to the first terminal device.
  • the first terminal device In step 730, the first terminal device generates a second service model based on the first service model, and sends the second service model to the network device.
  • the first service model and the second service model are used to report information such as the period and data size of the service data transmitted by the second terminal device in the terminal device group.
  • the second terminal device may send the first service model including different time offset parameters to the first terminal device, and the second service model generated by the first terminal device based on the different first service models may also include different time offset parameters.
  • the different time offset parameters are defined based on different predefined time reference points.
  • each time offset parameter and each predefined time reference point will be described in detail below in conjunction with FIG. 6.
  • the predefined first time reference point may be the time boundary of the network device, for example, it may be SFN#0 sf#0 in the figure.
  • the predefined second time reference point may be the time boundary of the first terminal device, for example, it may be DFN#0 sf#0 shown in the figure, or it may be an absolute time point of the predefined GNSS.
  • the first time offset parameter may be the time offset of the arrival time of the service data of the second terminal device with respect to the predefined first time reference point.
  • the second time offset parameter may be the time offset of DFN#0 sf#0 relative to the predefined first time reference point
  • the third time offset parameter may be the time at which the service data of the second terminal device arrives relative to the preset time.
  • the time offset of the defined second time reference point Examples of the first time offset parameter, the second time offset parameter, and the third time offset parameter are given in FIG. 6.
  • the first time reference point may also include any number of SFNs, or any number of subframes of any number of SFNs.
  • the second time reference point may also include any number of DFNs, or any number of subframes of any number of DFNs.
  • the second time offset parameter may be the difference between DFN and SFN.
  • DFN and SFN For the description of the difference between DFN and SFN, reference may be made to the related description in step 330 of the method 300 above, and for brevity, it is not repeated here.
  • the first service model sent by the second terminal device to the first terminal device may further include the first time offset parameter.
  • the second time offset parameter may be obtained in advance from the first terminal device.
  • the first terminal device does not perform additional processing on the first time offset parameter in the received first service model, that is, the time offset included in the second service model generated by the first terminal device based on the first service model
  • the shift parameter is the first time shift parameter. Then, the first terminal device sends the second service model to the network device.
  • the first service model sent by the second terminal device to the first terminal device may further include a third time offset parameter.
  • the third time offset parameter included in the first service model is the time offset of the arrival time of the service data of the second terminal device with respect to an absolute time point of the GNSS.
  • the first terminal device does not perform additional processing on the third time offset parameter in the received first service model, that is, the time offset included in the second service model generated by the first terminal device based on the first service model
  • the shift parameter is the third time shift parameter. Then, the first terminal device sends the second service model to the network device.
  • the third time offset parameter included in the first service model is the time offset of the arrival time of the service data to be transmitted by the second terminal device relative to DFN#0 sf#0.
  • the first terminal device can process the received third time offset parameter in the first service model at least in the following two ways:
  • Manner 1 The first terminal device determines the first time offset parameter based on the received third time offset parameter in the first service model, that is, the first terminal device generates the second service based on the received first service model The model includes the first time offset parameter. Then, the first terminal device sends the second service model to the network device.
  • Manner 2 The first terminal device does not perform additional processing on the third time offset parameter in the received first service model, that is, the second service model generated by the first terminal device based on the received first service model includes the The third time offset parameter. Then, the first terminal device sends the second service model to the network device. In this case, the first terminal device may send the second time offset parameter to the network device.
  • the first terminal device may send the second time offset parameter to the network device before forwarding the first service model to the network device, or may also send the second time offset parameter to the network device after forwarding the first service model to the network device.
  • the second time offset parameter may be sent to the network device while forwarding the first service model to the network device, which is not limited in the embodiment of the present application.
  • the first terminal device can identify the second terminal device according to the source identifier and/or the destination identifier carried in the first service model.
  • the second terminal device uses the group identifier of the terminal device group as the destination identifier, and uses the L2 identifier assigned by the member terminal device for the terminal device group as the source identifier, and sends the first service model to the first terminal device .
  • the first terminal device identifies which member terminal device in the terminal device group the second terminal device is through the source identifier.
  • the second terminal device sends the first service model to the first terminal device in a unicast manner.
  • the second terminal device uses the first terminal device as the order between the first terminal device and the second terminal device.
  • the L2 identifier assigned by the broadcast connection is used as the destination identifier
  • the L2 identifier assigned by the second terminal device for the unicast connection is used as the source identifier
  • the first service model is sent to the first terminal device.
  • the first terminal device recognizes which member terminal device the second terminal device is through the destination identifier and/or source identifier.
  • the embodiment of this application does not specifically limit the manner in which the second terminal device sends the first service model to the first terminal device. For example, it can be sent in a unicast mode, when the first terminal device and the second terminal device belong to the same terminal device. When grouping, it can also be sent by multicast. Alternatively, it can be carried and sent through the control plane, or it can be carried and sent through the user plane.
  • the second service model generated by the first terminal device based on the received first service model may also include the identification information of the second terminal device.
  • the embodiment of the present application describes the form of the identification information of the second terminal device.
  • the identification information of the second terminal device may include third information for identifying the second terminal device and fourth information for identifying the terminal device group.
  • the third information may include, for example, one or more of the following: the L2 identifier of the second terminal device, and the group identifier or index of the second terminal device.
  • the fourth information may include, for example, one or more of the following: the group identification or index of the terminal device group.
  • the group identifier or index of the second terminal device may be allocated by the first terminal device, or may be allocated by the network device, or may also be reported by the first terminal device to the network device of the member terminals of the terminal device group.
  • the equipment information is arranged in order.
  • the embodiment of the present application does not specifically limit the allocation method of the group identifier or index of the second terminal device
  • the first terminal device may generate a second service model based on each first service model to correspond to a second terminal device.
  • the first terminal device may also generate a second service model based on multiple first service models, and pass the information of multiple first service models, such as the first time offset parameter, through a second service model.
  • the service model is carried and sent to the network device. This application does not limit the correspondence between the number of first business models and the number of second business models.
  • step 740 the network device sends the SL CG configuration to the first terminal device.
  • step 750 the first terminal device sends the corresponding SLCG configuration to the second terminal device.
  • the first terminal device may perform additional processing on the received time offset parameter in the first service model, or may not perform additional processing. Therefore, the second service model sent by the first terminal device to the network device may include different time offset parameters. Therefore, the SLCG configuration sent by the network device to the first terminal device based on the second service model uses different predefined time reference points as the time reference.
  • the second service model includes a first time offset parameter
  • the SLCG configuration determined by the network device according to the second service model uses a predefined first time reference point as a time reference.
  • the first terminal device After receiving the SL CG configuration, the first terminal device converts the SL CG configuration into an SL CG configuration using a predefined second time reference point as a time reference according to the second time offset parameter. Then, the first terminal device sends the SLCG configuration with the predefined second time reference point as a time reference to the second terminal device. After receiving the SL CG configuration, the second terminal device uses the SL CG resource to transmit service data.
  • the first terminal device does not perform additional processing on the received SLCG configuration, and directly sends it to the second terminal device.
  • the second terminal device determines the SL CG resource in combination with the SL CG configuration and the second time offset parameter. Wherein, the second time offset parameter is notified by the first terminal device to the second terminal device.
  • the second service model includes a third time offset parameter
  • the SL CG configuration determined by the network device according to the second service model and the second time offset parameter previously received is based on a predefined second time offset parameter.
  • the time reference point is the time base.
  • the first terminal device does not perform additional processing on the received SL CG configuration, and directly sends it to the second terminal device.
  • step 750 shown in FIG. 7 only shows an example in which the first terminal device does not perform additional processing on the received SL CG configuration from the network device, and sends it directly to the second terminal device, which should not be used in this embodiment of the application. Constitute any limitation.
  • the SLCG configuration sent by the network device to the first terminal device may also carry third information for identifying the second terminal device and/or fourth information for identifying the terminal device group, for example, If there are multiple member terminal devices in the terminal device group, the SLCG configuration can also carry third information. For another example, if the first terminal device is the head terminal device of multiple different terminal device groups, and each terminal device The group has only one member terminal device, and the SL CG configuration can also carry the fourth information. For another example, if the first terminal device is the head terminal device of multiple different terminal device groups, and each terminal device group has multiple member terminal devices , The SL CG configuration may also carry third information and fourth information.
  • the second terminal device carries a time offset parameter (such as the first time offset parameter or the third time offset parameter described above) in the service model reported to the network device to facilitate the network
  • the device can allocate corresponding SL CG resources to the second terminal device according to the reported time offset parameter, so as to synchronize or align the network device and the second terminal device in the time domain. Even when the second terminal device is outside the coverage of the network device, there is still no resource offset, which is beneficial to improving the reliability of the second terminal device in transmitting service data.
  • the first terminal device determines the first time offset parameter according to the second time offset parameter, and can reuse the existing Uu port to report the service model of the second terminal device, which can save the complexity of the network device.
  • FIG. 8 is a schematic flowchart of a method for configuring SL configuration provided by an embodiment of the present application. After receiving the SL configuration for the second terminal device mentioned in step 340 in FIG. 3, the embodiment shown in FIG. The implementation of a terminal device sending the indication information of the success or failure of the configuration is described in more detail.
  • step 810 the network device sends an RRC message to the first terminal device.
  • the RRC message includes SL configuration information configured by the network device for each terminal device in the terminal device group, and the embodiment of the present application does not limit the specific content of the SL configuration.
  • the SL configuration may include one or more of the following: SL resource pool configuration, SL bearer configuration, logical channel configuration, logical channel group configuration, and measurement configuration.
  • the SL configuration provided by the network device for the terminal device group can include the dedicated configuration provided for each terminal device in the terminal device group, and it can also include the group configuration applicable to each terminal device in the terminal device group, or the above-mentioned dedicated configuration and group configuration. ⁇ The combination. The embodiments of this application do not limit this.
  • step 820 the first terminal device parses the received RRC message.
  • step 830 the first terminal device sends the parsed SL configuration provided by the network device for the second terminal device to the second terminal device.
  • the first terminal device can send the SL configuration to the second terminal device in a unicast manner.
  • the first terminal device needs to filter the SL configuration received from the network device and only send the SL configuration to the second terminal device.
  • the device sends an SL configuration applicable to the second terminal device, and the SL configuration may include a dedicated configuration of the second terminal device and a group configuration applicable to each terminal device in the terminal device group.
  • the embodiment of the present application does not limit the specific manner in which the first terminal device screens the received SL configuration.
  • the dedicated configuration received by the first terminal device from the network device may carry the L2 identifier of the second terminal device, or may also carry the group identifier or index of the second terminal device.
  • the first terminal device can determine which member terminal device in the terminal device group the dedicated configuration is applicable to according to the L2 identifier or the identifier or index in the group.
  • the first terminal device may send the SL configuration to the second terminal device in a multicast manner.
  • the message sent by the first terminal device to the second terminal device includes the SL configuration configured by the network device for all member terminal devices in the terminal device group.
  • the second terminal device may only execute the SL configuration applicable to the second terminal device.
  • the SL configuration may include the dedicated configuration of the second terminal device and/or each terminal device group is Group configuration applicable to all terminal devices.
  • the SL configuration received by the second terminal device that is not applicable to the second terminal device may or may not be retained, which is not limited in the embodiment of the present application.
  • step 840 the second terminal device sends an SL configuration success or failure indication to the first terminal device.
  • the second terminal device may send an SL configuration success indication to the first terminal device.
  • the SL configuration completion indication may be carried in existing signaling, or may also be a newly-added signaling. This application does not limit this.
  • the second terminal device if the second terminal device can complete the measurement configuration, the second terminal device sends a measurement configuration success indication to the first terminal device.
  • the manner in which the second terminal device sends the SL configuration success indication to the first terminal device may be sent in a multicast manner, or may also be sent in a unicast manner.
  • the second terminal device sends the SL configuration success indication in a multicast manner, in addition to the first terminal device in the terminal device group, other member terminal devices may also receive the SL configuration completion indication, and other member terminals The device does not need to perform additional processing on the received indication of successful SL configuration.
  • the second terminal device sends the SL configuration success indication to the first terminal device in a unicast manner.
  • the second terminal device after the second terminal device receives the SL configuration sent by the first terminal device, if the SL configuration cannot be executed, the second terminal device sends an SL configuration failure indication to the first terminal device.
  • the SL configuration failure indication may be carried in existing signaling, or may be a newly-added signaling. This application does not limit this.
  • the second terminal device if the second terminal device cannot execute the measurement configuration, the second terminal device sends a measurement configuration failure indication to the first terminal device.
  • step 850 the first terminal device sends an SL configuration success indication or an SL configuration failure indication to the network device.
  • the first network device may send an SL configuration success indication or an SL configuration failure indication.
  • the first terminal device may send information to the network device to indicate that the SL configuration of the terminal device group is successful.
  • the SL configuration success indication may be an RRC reconfiguration complete message, or an information element carried in the RRC reconfiguration complete message. This application does not limit this.
  • the third indication information indicating that the SL configuration of the terminal device group has failed is sent to the network device.
  • the first terminal device determines that the SL configuration of the network device has failed.
  • the method may further include: the first terminal device triggers RRC re-establishment.
  • the embodiment of the present application does not limit the manner in which the first terminal device confirms the failure of the SL configuration of the second terminal device. For example, in the case that the first terminal device receives the SL configuration failure indication from the second terminal device, the second terminal is confirmed Device SL configuration failed. Alternatively, the first terminal device confirms that the SL configuration of the second terminal device has failed in a case in which the SL configuration success indication of the second terminal device is not received after a preset timer expires.
  • the first terminal device can execute the SL configuration provided for the first terminal device in the RRC message sent by the network device to the first terminal device in step 810, then send an RRC reconfiguration complete message to the network device , Used to indicate that the configuration of the first terminal device is successful. Subsequently, if it is confirmed that the configuration of the second terminal device SL fails, the third indication information for indicating that the configuration of the second terminal device SL fails is sent to the network device.
  • the third indication information that the first terminal device sends to the network device indicating that the configuration of the second terminal device SL fails may also carry the identification information of the second terminal device described above.
  • the member terminal device in the terminal device group can complete the measurement configuration, the member terminal device will perform the measurement and obtain the measurement result.
  • CBR channel busy ratio
  • the member terminal device sends the CBR measurement result to the head terminal device.
  • the method for the member terminal device to send the CBR measurement result is the same as the method for the member terminal device to send information to the head terminal device described above, and will not be repeated here.
  • the head terminal device After the head terminal device receives the CBR measurement result of the member terminal device, it sends the CBR measurement result to the network device.
  • the CBR measurement result sent by the head terminal device to the network device may also carry the aforementioned identification information of the second terminal device.
  • the CBR measurement results that can be obtained by different terminal devices in the terminal device group may also be different.
  • the terminal device The two member terminal devices in group #1 are located at different locations from the two member terminal devices in terminal device group #2, so the member terminal devices in the terminal device group report the CBR measurement to the network device through the head terminal device The results are different.
  • the terminal equipment group #1 corresponds to the CBR measurement result obtained by RP#2.
  • the network device receives the CBR measurement result of the member terminal device sent by the head terminal device, and can optimize the SL resource pool configuration generated by each terminal device in the terminal device group according to the CBR measurement result.
  • the second terminal device may send SL configuration failure indication information to the first terminal device.
  • the first terminal device may also send third indication information indicating that the SL configuration of the second terminal device fails to the network device. , Or send third indication information indicating that the configuration of the terminal device group SL fails.
  • the first terminal device triggers the RRC re-establishment.
  • the third indication information sent by the first terminal device to the network device indicating that the configuration of the second terminal device SL failed may also carry the identification information of the second terminal device. Therefore, the network device can optimize the SL configuration generated for each terminal device in the terminal device group according to the received SL configuration failure indication information.
  • FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1000 may include a processing unit 1100 and a transceiving unit 1200.
  • the communication device 1000 may correspond to the first terminal device in the above method embodiment, for example, it may be the first terminal device, or a component (such as a chip or a component) configured in the first terminal device. Chip system).
  • the communication device 1000 may correspond to the first terminal device in the method 200, the method 300, the method 700, and the method 800 according to the embodiments of the present application, and the communication device 1000 may include a method for executing the method 200, Units of the method executed by the first terminal device in the method 300 in FIG. 3, the method 700 in FIG. 7, and the method 800 in FIG.
  • the units in the communication device 1000 and the other operations and/or functions described above are used to implement the method 200 in FIG. 2, the method 300 in FIG. 3, the method 700 in FIG. 7, and the method 800 in FIG. 8 respectively. Process.
  • the processing unit 1100 can be used to execute step 220 in the method 200
  • the transceiver unit 1200 can be used to execute step 210 and step 230 in the method 200. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to execute step 310, step 340, step 370, and step 390 in the method 300, and the transceiver unit 1200 can be used to execute step 320 in the method 300. Go to step 340 and step 360 to step 390. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to perform steps 730 and 750 in the method 700, and the transceiver unit 1200 can be used to perform steps 720, 730, and 740 in the method 700.
  • Step 750 It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to perform steps 820 and 850 in the method 800, and the transceiver unit 1200 can be used to perform steps 810, 830, and 840 in the method 800. And step 850. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the transceiver unit 1200 in the communication device 1000 may be implemented by a transceiver, for example, it may correspond to the transceiver 2020 in the terminal device 2000 shown in FIG.
  • the processing unit 1100 in the communication device 1000 may be implemented by at least one processor, for example, may correspond to the processor 2010 in the first terminal device 2000 shown in FIG. 11.
  • the transceiver unit 1200 in the communication device 1000 may be implemented through an input/output interface, and the processing unit 1100 in the communication device 1000 may It is realized by the processor, microprocessor or integrated circuit integrated on the chip or chip system.
  • the communication device 1000 may correspond to the network device in the above method embodiment, for example, it may be a network device, or a component (such as a chip or a chip system) configured in the network device.
  • the communication apparatus 1000 may correspond to the network equipment in the method 200, the method 300, the method 700, and the method 800 according to the embodiments of the present application, and the communication apparatus 1000 may include a method for executing the method 200 in FIG. 2 and the method in FIG. 3
  • the method 300 in FIG. 7, the method 700 in FIG. 7, and the method 800 in FIG. 8 are units of the method executed by the network device.
  • the units in the communication device 1000 and the other operations and/or functions described above are used to implement the method 200 in FIG. 2, the method 300 in FIG. 3, the method 700 in FIG. 7, and the method 800 in FIG. 8 respectively. Process.
  • the processing unit 1100 may be used to execute step 230 in the method 200
  • the transceiver unit 1200 may be used to execute step 230 in the method 200. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to perform step 330, step 350, and step 380 in the method 300, and the transceiver unit 1200 can be used to perform step 320 and step 330 in the method 300. , Step 370 and Step 380. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to execute steps 710 and 740 in the method 700
  • the transceiver unit 1200 can be used to execute steps 730 and 740 in the method 700. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to execute step 810 in the method 800, and the transceiver unit 1200 can be used to execute step 810 and step 850 in the method 800. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the transceiver unit 1200 in the communication device 1000 may be implemented by a transceiver, for example, it may correspond to the transceiver 3200 in the network device 3000 shown in FIG.
  • the processing unit 1100 in 1000 may be implemented by at least one processor, for example, may correspond to the processor 3100 in the network device 3000 shown in FIG. 12.
  • the transceiver unit 1200 in the communication device 1000 can be implemented through an input/output interface, and the processing unit 1100 in the communication device 1000 can be implemented through the Implementation of a processor, microprocessor, or integrated circuit integrated on a chip or chip system.
  • the communication device 1000 may correspond to the second terminal device in the above method embodiment, for example, it may be the second terminal device, or a component (such as a chip or a component) configured in the second terminal device. Chip system).
  • the communication apparatus 1000 may correspond to the second terminal device in the method 200, the method 300, the method 700, and the method 800 according to the embodiments of the present application, and the communication apparatus 1000 may include a method for executing the method 200, Units of the method executed by the second terminal device in the method 300 in FIG. 3, the method 700 in FIG. 7, and the method 800 in FIG.
  • the units in the communication device 1000 and the other operations and/or functions described above are used to implement the method 200 in FIG. 2, the method 300 in FIG. 3, the method 700 in FIG. 7, and the method 800 in FIG. 8 respectively. Process.
  • the processing unit 1100 may be used to execute step 210 in the method 200
  • the transceiver unit 1200 may be used to execute step 210 in the method 200. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to execute step 310 in the method 300, and the transceiver unit 1200 can be used to execute step 340, step 360, and step 390 in the method 300. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 may be used to execute steps 720 and 750 in the method 700, and the transceiver unit 1200 may be used to execute steps 720 and 750 in the method 700. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the processing unit 1100 can be used to execute step 840 in the method 800, and the transceiver unit 1200 can be used to execute step 830 and step 840 in the method 800. It should be understood that the specific process of each unit performing the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
  • the transceiver unit 1200 in the communication device 1000 may be implemented by a transceiver, for example, it may correspond to the transceiver 2020 in the second terminal device 2000 shown in FIG. 11.
  • the processing unit 1100 in the communication device 1000 may be implemented by at least one processor, for example, may correspond to the processor 2010 in the second terminal device 2000 shown in FIG. 11.
  • the transceiver unit 1200 in the communication device 1000 can be implemented through an input/output interface, and the processing unit 1100 in the communication device 1000 can be implemented through the Implementation of a processor, microprocessor, or integrated circuit integrated on a chip or chip system.
  • FIG. 11 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application.
  • the terminal device 2000 can be applied to the system shown in FIG. 1 to perform the functions of the first terminal device or the second terminal device in the foregoing method embodiment.
  • the terminal device 2000 includes a processor 2010 and a transceiver 2020.
  • the terminal device 2000 further includes a memory 2030.
  • the processor 2010, the transceiver 2002, and the memory 2030 can communicate with each other through internal connection paths to transfer control and/or data signals.
  • the memory 2030 is used for storing computer programs, and the processor 2010 is used for downloading from the memory 2030. Call and run the computer program to control the transceiver 2020 to send and receive signals.
  • the terminal device 2000 may further include an antenna 2040 for transmitting the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.
  • the above-mentioned processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to realize the above-mentioned functions.
  • the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010.
  • the processor 2010 may correspond to the processing unit 1100 in FIG. 7.
  • the aforementioned transceiver 2020 may correspond to the transceiver unit 1200 in FIG. 10, and may also be referred to as a transceiver unit.
  • the transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device 2000 shown in FIG. 11 can implement various processes involving the first terminal device in the method embodiments shown in FIG. 2, FIG. 3, FIG. 7 and FIG. 8.
  • the operations and/or functions of the various modules in the terminal device 2000 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 2010 may be used to execute the actions described in the foregoing method embodiments that are implemented internally by the first terminal device, such as generating second information.
  • the transceiver 2020 may be used to perform the actions that the first terminal device sends to or receives from the network device described in the foregoing method embodiments, such as sending second information and third indication information, receiving resource allocation information, and so on. For details, please refer to the description in the previous method embodiment, which will not be repeated here.
  • the terminal device 2000 shown in FIG. 11 can implement each process involving the second terminal device in the method embodiments shown in FIG. 2, FIG. 3, FIG. 7 and FIG. 8.
  • the operations and/or functions of the various modules in the terminal device 2000 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 2010 may be used to execute the actions implemented inside the second terminal device described in the foregoing method embodiments, such as generating first information.
  • the transceiver 2020 can be used to perform the actions that the first terminal device sends to or receives from the network device described in the foregoing method embodiments, such as sending first information, SL configuration failure indication and SL configuration success indication, and receiving resource allocation information Wait.
  • sending first information SL configuration failure indication and SL configuration success indication
  • receiving resource allocation information Wait For details, please refer to the description in the previous method embodiment, which will not be repeated here.
  • the aforementioned terminal device 2000 may further include a power source 2050, which is used to provide power to various devices or circuits in the terminal device.
  • the terminal device 2000 may also include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
  • the audio circuit It may also include a speaker 2082, a microphone 2084, and so on.
  • FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application, and may be, for example, a schematic structural diagram of a base station.
  • the base station 3000 can be applied to the system shown in FIG. 1 to perform the functions of the network equipment in the foregoing method embodiment.
  • the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also known as distributed unit (DU) )) 3200.
  • RRU 3100 may be referred to as a transceiving unit or a part of the transceiving unit, which corresponds to the transceiving unit 1100 in FIG. 10.
  • the transceiver unit 3100 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 3101 and a radio frequency unit 3102.
  • the transceiver unit 3100 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter or transmitting circuit).
  • the RRU 3100 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals, for example, for sending SL configuration information, resource allocation information, and receiving second information to the first terminal device.
  • the description in the previous method embodiment which will not be repeated here.
  • the 3200 part of the BBU is mainly used for baseband processing, control of the base station, and so on.
  • the RRU 3100 and the BBU 3200 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 3200 is the control center of the base station, and may also be called a processing unit, which may correspond to the processing unit 1200 in FIG. 10, and may be used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing unit
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing resource allocation information.
  • the description in the previous method embodiment which will not be repeated here.
  • the BBU 3200 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 3200 also includes a memory 3201 and a processor 3202.
  • the memory 3201 is used to store necessary instructions and data.
  • the processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 3201 and the processor 3202 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the base station 3000 shown in FIG. 12 can implement various processes involving network devices in the method embodiments shown in FIG. 2, FIG. 3, FIG. 7 and FIG. 8.
  • the operations and/or functions of the various modules in the base station 3000 are respectively for implementing the corresponding procedures in the foregoing method embodiments.
  • the above-mentioned BBU 3200 can be used to perform the actions described in the previous method embodiment implemented by the network device, and the RRU 3100 can be used to perform the network device described in the previous method embodiment to send to or from the first terminal device Received action.
  • the RRU 3100 can be used to perform the network device described in the previous method embodiment to send to or from the first terminal device Received action.
  • the base station 3000 shown in FIG. 12 is only a possible form of network equipment, and should not constitute any limitation to this application.
  • the method provided in this application can be applied to other types of network equipment.
  • it may include AAU, it may also include CU and/or DU, or it may include BBU and adaptive radio unit (ARU), or BBU; it may also be customer premises equipment (CPE), or it may be
  • AAU AAU
  • CU CU
  • DU BBU
  • BBU adaptive radio unit
  • BBU BBU
  • CPE customer premises equipment
  • the CU and/or DU can be used to perform the actions described in the previous method embodiments implemented by the network device, and the AAU can be used to perform the network device described in the previous method embodiments to send to the first terminal device or from the first terminal device.
  • An action received by a terminal device please refer to the description in the previous method embodiment, which will not be repeated here.
  • An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in any of the foregoing method embodiments.
  • the aforementioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes Figure 2, Figure 3, The methods performed by the first terminal device, the second terminal device, and the network device in the embodiments shown in FIG. 7 and FIG. 8 respectively.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes FIG. 2, FIG. 3, and FIG.
  • the present application also provides a system, which includes the aforementioned one or more first terminal devices, one or more second terminal devices, and one or more network devices.
  • the network equipment in each of the above-mentioned device embodiments corresponds completely to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit executes the receiving or the terminal equipment in the method embodiments.
  • the processing unit executes the functions of specific units, refer to the corresponding method embodiments. Among them, there may be one or more processors.
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions (programs).
  • programs When the computer program instructions (programs) are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium, (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, and a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk, SSD
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé d'acquisition de ressource de liaison latérale, et sur un appareil de communication. Le procédé comprend : un premier dispositif terminal reçoit des premières informations en provenance d'un second dispositif terminal, les premières informations servant à demander une ressource SL ; le premier dispositif terminal génère des secondes informations sur la base des premières informations, les secondes informations transportant des informations d'identification du second dispositif terminal afin de demander la ressource SL pour le second dispositif terminal ; et le premier dispositif terminal envoie les secondes informations à un dispositif de réseau. Le dispositif de réseau identifie, en fonction des informations d'identification contenues dans les secondes informations reçues, que la ressource SL demandée au moyen des secondes informations sert à la transmission des données de service par le second dispositif terminal, et par conséquent, une ressource SL peut être attribuée à un second dispositif terminal de manière plus précise et rationnelle.
PCT/CN2019/109600 2019-09-30 2019-09-30 Procédé et appareil d'acquisition de ressource de liaison latérale WO2021062704A1 (fr)

Priority Applications (2)

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PCT/CN2019/109600 WO2021062704A1 (fr) 2019-09-30 2019-09-30 Procédé et appareil d'acquisition de ressource de liaison latérale
CN201980100596.3A CN114424650A (zh) 2019-09-30 2019-09-30 获取侧行链路资源的方法和装置

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PCT/CN2019/109600 WO2021062704A1 (fr) 2019-09-30 2019-09-30 Procédé et appareil d'acquisition de ressource de liaison latérale

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WO2023236141A1 (fr) * 2022-06-09 2023-12-14 Mediatek Inc. Décalage de numéro de trame pour le positionnement d'un ue distant
CN117812590A (zh) * 2022-09-30 2024-04-02 华为技术有限公司 一种通信方法及装置、计算机可读存储介质和通信系统

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WO2019157945A1 (fr) * 2018-02-13 2019-08-22 华为技术有限公司 Procédé et appareil d'autorisation de liaison montante

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