WO2020164481A1 - 一种终端装置识别方法及装置 - Google Patents

一种终端装置识别方法及装置 Download PDF

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Publication number
WO2020164481A1
WO2020164481A1 PCT/CN2020/074748 CN2020074748W WO2020164481A1 WO 2020164481 A1 WO2020164481 A1 WO 2020164481A1 CN 2020074748 W CN2020074748 W CN 2020074748W WO 2020164481 A1 WO2020164481 A1 WO 2020164481A1
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communication device
layer
terminal
information
identifier
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PCT/CN2020/074748
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English (en)
French (fr)
Inventor
刘俊
肖潇
常俊仁
王君
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华为技术有限公司
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Priority to EP20754858.7A priority Critical patent/EP3917186A4/en
Publication of WO2020164481A1 publication Critical patent/WO2020164481A1/zh
Priority to US17/401,033 priority patent/US11930487B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/71—Hardware identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/76—Group identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/186—Processing of subscriber group data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a terminal device identification method and device.
  • the new radio proposes a solution in which one terminal assists network equipment to allocate resources to other terminals.
  • a leader terminal can be used to assist the network device in resource allocation to member terminals in the terminal device group.
  • the present application provides a terminal device identification method and device, which are used to provide a sensing solution for a head terminal to improve the sensing efficiency of the head terminal.
  • this application provides a terminal device identification method.
  • the first information can be sent to the AS layer of the second communication device by the access AS layer of the first communication device.
  • a piece of information is used to determine that the first communication device is the head terminal device in the terminal device group.
  • the terminal device group is a terminal device group to which the first communication device belongs.
  • the AS layer of the second communication device can identify the head terminal device according to the first information, and realize the head terminal perception.
  • the second communication device may belong to the terminal device group.
  • the first information may include the mapping relationship between the upper-layer terminal identifier of the first communication device and the AS layer identifier of the first communication device, and the upper-layer terminal of the first communication device The mapping relationship between the identifier and the vehicle networking V2X layer identifier of the first communication device, or the upper terminal identifier of the first communication device.
  • the first communication device may also send second information to the second communication device, and the second information may be used to indicate the upper terminal identifier of the head terminal device in the terminal device group.
  • the second information may include the upper-layer terminal identifier of the first communication device (for example, may include the V2X layer identifier and/or the identifier of the layer above the V2X layer), and is used to indicate the
  • the upper-level terminal identifier is the information of the identification of the head terminal device of the terminal device group, the group identification group ID of the terminal device group, the identification of the member terminal in the terminal device group, or is used to indicate the terminal device group One or more types of information on the number of member terminals in the.
  • the upper layer of the first communication device can be located between the first communication device and the second communication device.
  • the second information is sent to the upper layer of the second communication device.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of a side link SL; or a message for accepting an SL establishment request, or, Used to request the message to maintain the SL connection; or, to indicate the acceptance of the message to maintain the SL connection.
  • the above SL is an upper layer link between the first communication device and the second communication device.
  • the V2X layer of the first communication device may send the second information to the V2X layer of the second communication device.
  • Second information before the first communication device sends the second information to the second communication device, the upper layer of the V2X layer of the first communication device can also notify the V2X layer of the first communication device of the third Information, the third information is used to indicate the upper-layer identifier of the head terminal device, and/or used to indicate that the first communication device is the head terminal device.
  • the AS layer of the first communication device may also send a logical channel identification ID to the AS layer of the second communication device, where the logical channel ID is used to indicate whether the message carries an AS. Layer message; or, the AS layer of the first communication device may send an AS layer message indication to the AS layer of the second communication device, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer of the second communication device can determine whether the received message carries an AS layer message.
  • the V2X layer of the first communication device may send the second information to the V2X layer of the second communication device based on the PC5-S protocol.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device includes at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or, the CS of the first communication device -RNTI; or, the interrupted wireless network temporary identification INT-RNTI of the first communication device; or, the paging wireless network temporary identification P-RNTI of the first communication device; or, the system of the first communication device Information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier RA of the first communication device -RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive wireless network temporary identifier I-RNTI of the first communication device; or, the first communication device Or
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may further include information for indicating that the first communication device is the head terminal device in the terminal device group, for example, in a message sent by the first communication device , When the value of the specific bit is configured as 0 (or 1), it indicates that the first communication device is the head terminal device.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or, AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment message; or, PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, used to request establishment SL message; or, a message used to indicate acceptance of an SL establishment request; or, a message used to indicate configuration information of SL; the SL is the AS layer between the first communication device and the second communication device link.
  • the first information includes one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or, The group identifier of the terminal device group; or, the identifier of the member terminal in the terminal device group; or, information used to indicate the number of member terminals in the terminal device group.
  • the first information may include AS layer multicast groupcast configuration information of the SL.
  • the first communication device may also send fourth information to the second communication device, where the fourth information is used to indicate that the second communication device is not allowed to forward to other terminal devices And scheduling resource configuration, the other terminal devices are terminal devices in the terminal device group.
  • the terminal device identification method can receive the first information from the AS layer of the first communication device by the AS layer of the second communication device, and the second communication device can be based on the first information.
  • Information that determines that the first communication device is the head terminal device in the terminal device group.
  • the first communication device belongs to the terminal device group.
  • the second communication device may belong to the terminal device group.
  • the AS layer of the second communication device may determine the AS layer terminal identification of the head terminal device according to the upper terminal identification of the head terminal device and the first mapping relationship. If the AS layer identification of the first communication device is the same as the AS layer terminal identification of the head terminal device, the first communication device is the head terminal device.
  • the AS layer of the second communication device may determine the V2X layer terminal identification of the head terminal device according to the upper terminal identification of the head terminal device and the second mapping relationship. According to the AS-layer terminal identifier of the first communication device, the V2X layer identifier of the head terminal device can be determined. If the V2X layer identifier of the first communication device is the same as the V2X layer terminal identifier of the head terminal device, the second communication device can determine the first communication The device is a head terminal device.
  • the AS layer of the second communication device determines the upper-layer terminal identifier of the first communication device, and When the upper terminal identifiers of the head terminal device are the same, the first communication device is determined to be the head terminal device.
  • the upper layer of the second communication device may also receive second information from the upper layer of the first communication device, and the second information is used to indicate the head terminal in the terminal device group
  • the upper terminal identifier of the device, the upper layer of the second communication device may also indicate the upper terminal identifier of the head terminal device to the AS layer of the second communication device.
  • the second information includes one or more of the following information: the upper-layer terminal identifier of the first communication device (may include the V2X layer identifier and/or the identifier of the layer above the V2X layer ); or, information used to indicate that the upper-layer terminal identifier is the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the member terminal of the terminal device group Identification; or, information used to indicate the number of member terminals in the terminal device group.
  • the upper-layer terminal identifier of the first communication device may include the V2X layer identifier and/or the identifier of the layer above the V2X layer ); or, information used to indicate that the upper-layer terminal identifier is the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the member terminal of the terminal device group Identification; or, information used to indicate the number of member terminals in the terminal device group.
  • the upper layer of the second communication device may perform an authentication process, a group creation process, a group member joining process, or discovery between the first communication device and the second communication device.
  • the second information is received from the upper layer of the first communication device.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of SL; or, a message for accepting an SL establishment request, or A message requesting to maintain an SL connection; or a message used to indicate acceptance of maintaining an SL connection; the SL is an upper layer link between the first communication device and the second communication device.
  • the AS layer of the second communication device may also receive a logical channel ID from the AS layer of the second communication device, and the logical channel ID is used to indicate whether the message carries the AS layer Message; or, the AS layer of the second communication device may receive an AS layer message indication from the AS layer of the second communication device, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device may include at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or CS-RNTI; or, the interrupted wireless network temporary identifier INT-RNTI of the first communication device; or, the paging wireless network temporary identifier P-RNTI of the first communication device; or, the first communication device System information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier of the first communication device RA-RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive radio network temporary identifier I-RNTI of the first communication device; or, the first communication
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may include information for indicating that the first communication device is the head terminal device in the terminal device group.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or, AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment message; or, PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, used to request establishment SL message; or, a message used to indicate acceptance of an SL establishment request; or, a message used to indicate configuration information of SL; the SL is the AS layer between the first communication device and the second communication device link.
  • the first information may include one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or , The Group ID of the terminal device group; or, the identification of the member terminal in the terminal device group; or, the information used to indicate the number of member terminals in the terminal device group.
  • the first information includes AS layer multicast groupcast configuration information of the SL.
  • the second communication device may also send fifth information to the third communication device, and the fifth information is used to indicate that the third communication device is not allowed
  • the communication device forwards and schedules the resource configuration to other communication devices, and the third communication device and the other communication device are terminal devices in the terminal device group.
  • the network device may also send indication information to the head terminal, the indication information is used to indicate that the head terminal is allowed to forward and/or schedule resource configuration to the member terminals in the terminal device group, or the indication information is used to indicate that the head terminal is not allowed to transmit to the terminal.
  • the member terminals in the device group forward and/or schedule resource configuration.
  • the embodiments of the present application also provide a terminal device identification method.
  • the first communication device can send the SL AS layer multicast groupcast configuration information to the second communication device.
  • a communication device and the second communication device belong to the same terminal device group, and the AS-layer multicast groupcast configuration information is used for the second communication device to configure SL AS-layer multicast parameters.
  • the first communication device can indicate the SL AS layer multicast parameters to the second communication device through the SL AS layer multicast groupcast configuration information.
  • the second communication device may receive the SL AS layer multicast groupcast configuration information from the first communication device, and the first communication device and the second communication device belong to the same terminal device group,
  • the SL AS layer multicast groupcast configuration information is used for the second communication device to configure SL AS layer multicast parameters.
  • this application provides a communication device that can be used to implement any one of the possible designs of the first aspect or the first aspect, or any one of the possible designs of the second or second aspect mentioned above.
  • the hardware or software includes one or more modules corresponding to the functions or method steps or operations in the above aspects and any of their designs.
  • the communication device may include a transceiving unit and a processing unit, wherein the transceiving unit can be used for the communication device to communicate, and the processing unit can be used for the communication device to implement any one of the first aspect or the first aspect.
  • the transceiving unit can be used for the communication device to communicate
  • the processing unit can be used for the communication device to implement any one of the first aspect or the first aspect.
  • the transceiver unit may be used to send the first information to the AS layer of the second communication device through the AS layer.
  • the information is used to determine that the first communication device is the head terminal device in the terminal device group.
  • the terminal device group is a terminal device group to which the first communication device belongs.
  • the second communication device may belong to the terminal device group.
  • the first information may include the mapping relationship between the upper-layer terminal identifier of the first communication device and the AS layer identifier of the first communication device, and the upper-layer terminal of the first communication device The mapping relationship between the identifier and the vehicle networking V2X layer identifier of the first communication device, or the upper terminal identifier of the first communication device.
  • the transceiving unit may also be used to send second information to the second communication device, and the second information may be used to indicate the upper terminal identifier of the head terminal device in the terminal device group.
  • the second information may include the upper-layer terminal identifier of the first communication device (may include the V2X layer identifier and/or the identifier of the layer above the V2X layer), which is used to indicate the upper-layer terminal
  • the identification is the information of the identification of the head terminal device of the terminal device group, the group identification group ID of the terminal device group, the identification of the member terminals in the terminal device group, or the information used to indicate the terminal device in the terminal device group One or more types of information on the number of member terminals.
  • the transceiving unit may pass through the upper layer of the first communication device, the authentication process, the group creation process, and the group membership between the first communication device and the second communication device In the joining process or the discovery process, the second information is sent to the upper layer of the second communication device.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of a side link SL; or a message for accepting an SL establishment request, or, A message used to request to maintain an SL connection; or, to indicate acceptance of a message to maintain an SL connection.
  • the above SL is an upper layer link between the first communication device and the second communication device.
  • the transceiver unit may also send the second information to the V2X layer of the second communication device through the V2X layer; before sending the second information, the processing unit may be used to: The upper layer of the communication device notifies the V2X layer of the first communication device of third information, the third information is used to indicate the upper layer identifier of the head terminal device, and/or used to indicate that the first communication device is the head terminal Device.
  • the transceiver unit may also be configured to send a logical channel identification ID to the AS layer of the second communication device through the AS layer, where the logical channel ID is used to indicate whether the message carries an AS layer message;
  • the transceiver unit may also be used to send an AS layer message indication to the AS layer of the second communication device through the AS layer, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer of the second communication device can determine whether the received message carries an AS layer message.
  • the transceiver unit may also send the second information to the V2X layer of the second communication device based on the PC5-S protocol through the V2X layer.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device includes at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or, the CS of the first communication device -RNTI; or, the interrupted wireless network temporary identification INT-RNTI of the first communication device; or, the paging wireless network temporary identification P-RNTI of the first communication device; or, the system of the first communication device Information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier RA of the first communication device -RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive wireless network temporary identifier I-RNTI of the first communication device; or, the first communication device Or
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may further include information for indicating that the first communication device is the head terminal device in the terminal device group, for example, in a message sent by the first communication device , When the value of the specific bit is configured as 0 (or 1), it indicates that the first communication device is the head terminal device.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or, AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment message; or, PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, used to request establishment SL message; or, a message used to indicate acceptance of an SL establishment request; or, a message used to indicate configuration information of SL; the SL is the AS layer between the first communication device and the second communication device link.
  • the first information includes one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or, The group identifier of the terminal device group; or, the identifier of the member terminal in the terminal device group; or, information used to indicate the number of member terminals in the terminal device group.
  • the first information may include AS layer multicast groupcast configuration information of the SL.
  • the transceiver unit may also send fourth information to the second communication device, where the fourth information is used to indicate that the second communication device is not allowed to forward to other terminal devices and schedule resource configuration ,
  • the other terminal device is a terminal device in the terminal device group.
  • the transceiver unit may receive the first information from the AS layer of the first communication device through the AS layer of the second communication device ,
  • the processing unit determines that the first communication device is the head terminal device in the terminal device group according to the first information.
  • the first communication device belongs to the terminal device group.
  • the second communication device may belong to the terminal device group.
  • the processing unit may determine the AS layer terminal identification of the head terminal device according to the upper terminal identification of the head terminal device and the first mapping relationship. If the AS layer identification of the first communication device is the same as the AS layer terminal identification of the head terminal device, the processing unit may determine that the first communication device is the head terminal device.
  • the processing unit may determine the V2X layer terminal identification of the head terminal device according to the upper terminal identification of the head terminal device and the second mapping relationship.
  • the V2X layer identification of the head terminal device can be determined according to the AS layer terminal identification of the first communication device. If the V2X layer identification of the first communication device is the same as the V2X layer terminal identification of the head terminal device, the processing unit can determine that the first communication device is ⁇ terminal device.
  • the processing unit may determine the upper-layer terminal identifier of the first communication device and the upper-layer terminal identifier of the head terminal device. When the terminal identifiers are the same, it is determined that the first communication device is the head terminal device.
  • the transceiver unit may also receive second information from the upper layer of the first communication device through the upper layer of the second communication device, and the second information is used to indicate the The upper-layer terminal identifier of the head terminal device, the transceiving unit may also indicate the upper-layer terminal identifier of the head terminal device to the AS layer of the second communication device through the upper layer of the second communication device.
  • the second information includes one or more of the following information: the upper-layer terminal identifier of the first communication device (may include the V2X layer identifier and/or the identifier of the layer above the V2X layer ); or, information used to indicate that the upper-layer terminal identifier is the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the member terminal of the terminal device group Identification; or, information used to indicate the number of member terminals in the terminal device group.
  • the upper-layer terminal identifier of the first communication device may include the V2X layer identifier and/or the identifier of the layer above the V2X layer ); or, information used to indicate that the upper-layer terminal identifier is the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the member terminal of the terminal device group Identification; or, information used to indicate the number of member terminals in the terminal device group.
  • the transceiving unit may also use the upper layer of the second communication device to perform an authentication process, a group creation process, and a group member joining process between the first communication device and the second communication device. Or during the discovery process, the second information is received from the upper layer of the first communication device.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of SL; or, a message for accepting an SL establishment request, or A message requesting to maintain an SL connection; or a message used to indicate acceptance of maintaining an SL connection; the SL is an upper layer link between the first communication device and the second communication device.
  • the transceiver unit may also receive a logical channel ID from the AS layer of the second communication device through the AS layer of the second communication device, and the logical channel ID is used to indicate whether the message is Carrying AS layer messages; or, the transceiver unit may also receive an AS layer message indication from the AS layer of the second communication device through the AS layer of the second communication device, where the AS layer message indication is used to indicate whether the message carries an AS Tier news.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device may include at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or CS-RNTI; or, the interrupted wireless network temporary identifier INT-RNTI of the first communication device; or, the paging wireless network temporary identifier P-RNTI of the first communication device; or, the first communication device System information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier of the first communication device RA-RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive radio network temporary identifier I-RNTI of the first communication device; or, the first communication
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may include information for indicating that the first communication device is the head terminal device in the terminal device group.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or, AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment message; or, PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, used to request establishment SL message; or, a message used to indicate acceptance of an SL establishment request; or, a message used to indicate configuration information of SL; the SL is the AS layer between the first communication device and the second communication device link.
  • the first information may include one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or , The Group ID of the terminal device group; or, the identification of the member terminal in the terminal device group; or, the information used to indicate the number of member terminals in the terminal device group.
  • the first information includes AS layer multicast groupcast configuration information of the SL.
  • the transceiver unit may also send fifth information to the third communication device, where the fifth information is used to indicate that the third communication device is not allowed to communicate with other
  • the communication device forwards and schedules resource configuration
  • the third communication device and the other communication devices are terminal devices in the terminal device group.
  • the network device may also send indication information to the head terminal, the indication information is used to indicate that the head terminal is allowed to forward and/or schedule resource configuration to the member terminals in the terminal device group, or the indication information is used to indicate that the head terminal is not allowed to transmit to the terminal.
  • the member terminals in the device group forward and/or schedule resource configuration.
  • the transceiver unit may be used to send SL AS layer multicast groupcast configuration information to the second communication device, and the first The communication device and the second communication device belong to the same terminal device group, and the AS layer multicast groupcast configuration information is used by the second communication device to configure the SL AS layer multicast parameters.
  • the transceiver unit may receive the SL AS layer multicast groupcast configuration information from the first communication device, and the first communication The device and the second communication device belong to the same terminal device group, and the SL AS layer multicast groupcast configuration information is used for the second communication device to configure the SL AS layer multicast parameters.
  • the communication device may include a transceiver, a memory, and a processor, wherein the transceiver is used for the communication device to communicate; the memory is used for storing program instructions; the processor is used for downloading from the memory Call and run the program instructions in the first aspect or the first aspect, or any one of the possible designs of the second aspect or the second aspect mentioned above, the first communication device or the second Functions implemented by the communication device.
  • the transceiver can be used to implement the above-mentioned functions implemented by the transceiving unit; the processor can be used to implement the above-mentioned functions implemented by the processing unit.
  • an embodiment of the present application provides a computer-readable storage medium, including program instructions, which when used on a computer, cause the computer to execute any possible design of the first aspect or the first aspect, Or the method implemented by the first communication device or the second communication device in any possible design of the above second aspect or the second aspect.
  • the embodiments of the present application provide a computer program product, which when running on a computer, enables the computer to execute any possible design of the first aspect or the first aspect, or the second or second aspect described above A method implemented by the first communication device or the second communication device in any possible design.
  • inventions of the present application provide a system chip.
  • the system chip may include a processor, and may also include a memory (or the system chip is coupled to a storage), and the system chip executes program instructions in the storage, To perform the method of any one of the possible designs of the first aspect or the first aspect, or to perform the function implemented by the first communication device or the second communication device in any one of the second or second aspect possible designs/ method.
  • “Coupled” means that two components are directly or indirectly connected to each other. For example, coupling may refer to electrical connection between two components.
  • the first communication device and the second communication device involved in the present application may be two terminal devices in a communication system, such as a V2X system, or may be a system chip or a chip device in the terminal device.
  • the system chip or chip device may have the structure and function of the system chip as described in the sixth aspect.
  • FIG. 1 is a schematic diagram of the architecture of a wireless communication system provided by this application.
  • FIG. 2 is a schematic diagram of the architecture of another wireless communication system provided by this application.
  • FIG. 3 is a schematic diagram of the architecture of another wireless communication system provided by this application.
  • FIG. 4 is a schematic flowchart of a terminal device identification method provided by this application.
  • FIG. 5 is a schematic flowchart of a terminal device identification method provided by this application.
  • FIG. 6 is a schematic flowchart of another terminal device identification method provided by this application.
  • FIG. 7 is a schematic flowchart of another terminal device identification method provided by this application.
  • FIG. 10 is a schematic flowchart of another terminal device identification method provided by this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by this application.
  • FIG. 12 is a schematic structural diagram of another communication device provided by this application.
  • At least one refers to one or more than one, that is, one, two, three or more.
  • Multiple refers to two or more than two, that is, two, three or more.
  • Carrying can mean that a certain message is used to carry certain information or data, or it can mean that a certain message consists of certain information.
  • S is used for device-to-device (D2D) communication between the terminal and the terminal.
  • D2D device-to-device
  • a terminal device group refers to a collection of multiple terminal devices used for group-related services. For example, multiple terminals in one or more cells can be formed into a terminal device group. The form is a platoon. The terminals in the terminal device group can communicate with other terminals through groupcast, unicast, or broadcast. The terminal device group has a unique group identifier (groupeID), which can be used to identify the terminal device group.
  • groupeID unique group identifier
  • Sidelink unicast refers to the transmission of information from one terminal to another terminal
  • sidelink multicast refers to the transmission of information from one terminal to multiple terminals
  • sidelink broadcast refers to the transmission of information from one terminal to all terminals within its coverage.
  • Head terminal refers to a terminal designated by a core network or other network equipment (such as a base station) or some terminal devices in a terminal device group.
  • the terminal can be used for group management, such as managing member terminals in a terminal device group, newly joining or deleting member terminals in a terminal device group.
  • the head terminal can also be used to collect the transmission resource requirements of other terminals in the terminal device group and uniformly request transmission resources from the network equipment.
  • the transmission resources here may refer to transmission resources used to perform group-related services.
  • the core network can authorize one terminal in the terminal device group as the head terminal through high-level signaling at the air interface, and the high-level of the terminal (such as the application layer) can determine that the terminal is the head terminal according to the high-level signaling.
  • the terminals other than the head terminal in the terminal device group may be called member terminals or member terminal devices.
  • Terminal identification refers to identification information used to uniquely identify a terminal device.
  • the terminal device may have one or more identifiers.
  • the protocol layer of the terminal device includes an upper layer (such as an application layer), a vehicle to everything (V2X) layer, and an access (access stratum, AS) layer
  • the terminal device may have an upper layer identifier (or called an upper terminal identifier).
  • V2X layer identification or V2X layer terminal identification
  • AS layer identification or AS layer terminal identification
  • the above V2X layer may be a protocol layer located between the upper layer (such as the application layer) and the AS layer.
  • the application layer is taken as an example in this application to describe the upper layer, but it should not be understood that the upper layer only refers to the application layer.
  • the AS layer may include layer 1 (L1) (that is, the physical layer), so the AS layer identifier may include the physical layer identifier, such as at least one of the following identifiers: cell radio network temporary identifier (C) -RNTI), configured scheduling radio network temporary identifier (configured scheduling RNTI, CS-RNTI), interrupted radio network temporary identifier (interruption RNTI, INT-RNTI), paging radio network temporary identifier (paging RNTI, P-RNTI), system Information Radio Network Temporary Identification (System Information RNTI, SI-RNTI), Semi-persistent Channel State Information Radio Network Temporary Identification (semi-persistent channel state information RNTI, SP-CSI-RNTI), Temporary Cell Radio Network Temporary Identification (C- RNTI), inactive radio network temporary identification (inactive-RNTI, I-RNTI), layer 1 source identification (L1 source ID, or sourceL1 ID) or layer 1 destination identification (L1 destination ID, or destination L1 ID).
  • C
  • the terminal's layer 2 identification such as layer 2 source ID (L2 source ID, or sourceL2 ID) and/or layer 2 destination ID (L2 destination ID, or destination L2 ID) can be used as the terminal's V2X layer identification .
  • the upper layer may include the V2X layer and other layers above the V2X layer, such as the application layer.
  • Group communication refers to the process of communication between a terminal in a terminal device group and one or more other terminals in the same terminal device group. It can also be a terminal device group transmitting to other terminals outside the group. information.
  • the terminal can use any one or more of unicast, multicast or broadcast to perform group related services.
  • the terminal device identification method provided by the application can be applied to the system. Then, the terminal device identification method provided by the embodiment of the application is introduced. Finally, the terminal and the terminal device provided by the embodiment of the application are introduced. Network equipment.
  • the wireless communication system 100 provided by the embodiment of the present application includes a terminal 101, a terminal 102, and a network device 103.
  • the application scenarios of the wireless communication system 100 include, but are not limited to, the Global System of Mobile Communications (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple).
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wireless Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal 101 and the terminal 102 may be devices such as a terminal (terminal), a mobile station (MS), or a mobile terminal (mobile terminal), or devices such as a chip or a chip system.
  • the terminal 101 can be connected to one or more devices.
  • One or more network devices of a communication system communicate and accept network services provided by the network devices.
  • the network devices here include but are not limited to the network device 103 shown in the figure.
  • the terminal 101 and the terminal 102 in the embodiment of the present application may be mobile phones (or "cellular" phones), computers with mobile terminals, etc., and the terminals 101 and 102 may also be portable, pocket-sized, handheld Type, built-in computer or vehicle-mounted mobile device.
  • the terminal 101 and the terminal 102 may also be communication chips with communication modules.
  • the terminal 101 can be configured to support communication with the network device 103 through a universal user and network air interface (Uu air interface), and/or the terminal 101 and the terminal 102 can be configured to support sidelink transmission
  • the terminal 101 and the terminal 102 may perform sidelink communication through a direct communication (PC5) air interface (that is, an air interface used for sidelink communication between the terminal and the terminal).
  • PC5 air interface that is, an air interface used for sidelink communication between the terminal and the terminal.
  • the network device 103 may include a base station (base station, BS), or include a base station and a radio resource management device used to control the base station, etc.
  • the base station here may be a base station (Base Transceiver Station, BTS) in a GSM or CDMA system.
  • It can be a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional NodeB, eNB or eNodeB), a small base station (micro/pico eNB) or a transceiver node (transmission/reception point, TRP) in the LTE system ), it can also be a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the base station 200 can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a base station in a future 5G network Or a base station in a future evolved PLMN network, such as an NR base station, which is not limited in this embodiment of the application.
  • CRAN Cloud Radio Access Network
  • V2X scenario shown in FIG. 2 uses the V2X scenario shown in FIG. 2 as an example to further illustrate the application scenario of the wireless communication system 100 provided in the embodiment of the present application.
  • the wireless communication system 100 can be applied to a wireless communication system including a vehicle queue 200.
  • the vehicle queue 200 is composed of multiple terminals (such as vehicle-mounted mobile devices).
  • the vehicle queue 200 may be a terminal device group.
  • the terminal 101 is the head terminal in the vehicle queue 200
  • the terminal 102 is the head terminal in the vehicle queue 200.
  • the terminal 101 can request the network device 103 for transmission resources, and the transmission resources can be used for the terminal 101 and/or other terminals in the vehicle queue 200 to perform group related services.
  • Other terminals in the vehicle queue 200 can send auxiliary information to the terminal 101.
  • the terminal 102 shown in FIG. 2 can send its demand for transmission resources to the terminal 101, so that the terminal 101 can respond to the terminal 102's demand for transmission resources. Request transmission resources from the network device 103.
  • the wireless communication system may also include a road side unit (RSU) and at least one terminal.
  • RSU road side unit
  • V2I vehicle-to-vehicle
  • V2V vehicle-to-vehicle
  • the wireless communication system 100 shown in FIG. 2 is taken as an example to illustrate the terminal device identification method provided by the embodiment of the present application.
  • the terminal 101 is the head terminal in the vehicle queue 200, and the terminal 102 is the vehicle queue 200.
  • the AS layer of the terminal 101 sends first information to the AS layer of the terminal 102.
  • the first information can be used to determine that the terminal 101 is the head terminal in the terminal device group.
  • the AS layer of the terminal 102 receives the first information, and determines that the terminal 101 is the head terminal device in the terminal device group according to the first information.
  • the terminal 101 in the terminal device group sends the first information to the terminal 102 through the AS layer, so that the terminal 102 determines that the terminal 101 is the head terminal in the terminal device group according to the first information, and realizes the AS layer identification of the head terminal .
  • the terminal 101 is the head terminal in the vehicle queue 200.
  • the terminal 101 may become the head terminal in the vehicle queue 200 according to the authorization of the core network.
  • the core network may consider one or more of the location information of each terminal in the vehicle queue 200, road loss information, signal strength, remaining fuel or remaining power of the vehicle and other information, and select the head from the vehicle queue 200. terminal.
  • the first information involved in this application may include the mapping relationship between the upper-layer identifier of the terminal 101 and the AS layer identifier of the terminal 101.
  • the AS layer identifier of the terminal 101 may be the physical layer identifier of the terminal 101, for example, it may be the C-RNTI, CS-RNTI, INT-RNTI, P-RNTI, SI-RNTI, SP-CSI- RNTI, temporary C-RNTI, I-RNTI, layer 1 source ID or layer 1 destination ID.
  • the upper-layer identifier of the terminal 101 may be the terminal identifier of the terminal 101 above the AS layer.
  • the upper-layer identifier of the terminal 101 includes the V2X layer identifier of the terminal 101 and/or the identifier of the layer above the V2X layer.
  • the terminal 101 may carry the upper layer identifier and the AS layer identifier in the same message to indicate that there is a mapping relationship between the upper layer identifier and the AS layer identifier.
  • the terminal 101 may indicate the upper layer identifier and the AS layer identifier to the terminal 102 through other messages, and indicate the mapping relationship between the upper layer identifier and the AS layer identifier through the first information.
  • the terminal 101 may indicate multiple upper layer identifiers to the terminal 102 and Multiple AS layer identifiers, and indicate the mapping relationship between one of the upper layer identifiers and one AS layer identifier through the first information.
  • the first information may also include the mapping relationship between the upper layer identifier of the terminal 101 and the V2X layer identifier of the terminal 101.
  • the V2X layer identifier of the terminal 101 may be the layer 2 identifier of the terminal 101, such as the layer 2 source identifier and/or the layer 2 destination identifier of the terminal 101.
  • the upper layer identifier of the terminal 101 may be the upper layer (for example, application layer) identifier of the V2X layer of the terminal 101.
  • the terminal 101 may carry the upper layer identifier and the V2X layer identifier in the same message to indicate that there is a mapping relationship between the upper layer identifier and the V2X layer identifier.
  • the terminal 101 may indicate the upper layer identifier and the V2X layer identifier to the terminal 102 through other messages, and indicate the mapping relationship between the upper layer identifier and the V2X layer identifier through the first information.
  • the terminal 101 may indicate multiple upper layer identifiers and Multiple V2X layer identifiers, and indicate the mapping relationship between one of the upper layer identifiers and one AS layer identifier through the first information.
  • the first information may also only include the upper-layer terminal identifier of the terminal 101, such as the V2X layer identifier of the terminal 101 and/or the identifier of the layer above the V2X layer (such as the application layer).
  • the upper layer of the terminal 101 (V2X layer or a layer above the V2X layer) can also send second information to the upper layer of the terminal 102, and this second information can be used to indicate the upper layer identifier of the head terminal in the terminal device group (such as the head terminal’s The V2X layer identifier and/or the identifier of the layer above the V2X layer), where the terminal 102 belongs to the terminal device group. Therefore, the upper layer of the terminal 102 can determine the upper layer identification of the head terminal according to the second information, and indicate the upper layer identification of the head terminal to the AS layer of the terminal 102. After the AS layer of the terminal 102 receives the first information, the terminal 102 can be A piece of information and the upper layer identifier of the head terminal determine the AS layer identifier of the head terminal.
  • the method for identifying the header terminal at the AS layer of the terminal 102 is explained respectively:
  • the upper layer of the terminal 102 (including the V2X layer or above) can determine the V2X layer identifier of the head terminal according to the second information. Thereafter, the terminal The upper layer of 102 can notify the AS layer of the terminal 102 of the V2X layer identifier of the head terminal. Since the AS layer of the terminal 102 can learn the V2X layer identifier of the terminal 101 during the AS layer interaction, the AS layer of the terminal 102 can be based on the head terminal’s The V2X layer identifier identifies whether the terminal 101 is the head terminal.
  • the upper layer of the terminal 101 can transfer the second information during the upper-layer interaction with the terminal 102
  • the upper layer message is carried, and the second information is sent to the upper layer of the terminal 102 through the upper layer message.
  • the upper layer of the terminal 101 may send the second information to the terminal 102 during the authentication process, the group creation process, the group member joining process, or the discovery process performed with the upper layer of the terminal 102.
  • the upper layer of the terminal 102 After receiving the upper layer message carrying the second information, the upper layer of the terminal 102 can determine the upper layer identification of the head terminal according to the second information, and indicate the upper layer identification of the head terminal to the AS layer of the terminal 102, so that the AS layer of the terminal 102 can It is determined whether the terminal 101 is the head terminal according to the first information received from the AS layer of the terminal 101.
  • the following respectively introduce several methods for the AS layer of the terminal 102 to determine whether the terminal 101 is the head terminal according to the first information after learning the upper layer identifier of the head terminal:
  • Method 1 If the first information sent by the AS layer of the terminal 101 to the AS layer of the terminal 102 includes the mapping relationship between the upper layer identifier of the terminal 101 and the AS layer identifier of the terminal 101, the AS layer of the terminal 102 can indicate according to the first information The mapping relationship between the upper-layer identifier and the AS-layer identifier of and the upper-layer identifier of the head terminal determine the AS-layer identifier of the head terminal device.
  • Method 2 If the first information includes the mapping relationship between the upper-layer identifier of the terminal 101 and the V2X layer identifier of the terminal 101, the AS layer of the terminal 102 can according to the mapping relationship between the upper-layer identifier and the V2X layer identifier indicated by the first information, And the upper layer identifier of the head terminal to determine the V2X layer identifier of the head terminal device. After that, the AS layer of the terminal 102 can identify whether the terminal 101 is the head terminal according to the V2X layer identifier of the head terminal. If the V2X layer identifier of the terminal 101 and the head terminal If the V2X layer identifiers are the same, the terminal 101 is the head terminal.
  • Method 3 If the first information only includes the upper-layer identifier of the terminal 101, or during the head terminal identification process, the AS layer of the terminal 102 only parses the upper-layer identifier carried in the first information, so that the AS layer of the terminal 102 can be based on the first information
  • the upper-level identifier of the terminal 101 is determined. After the upper layer of the terminal 102 determines the upper layer identification of the head terminal according to the above second information, the upper layer identification of the head terminal can be indicated to the AS layer of the terminal 102. If the AS layer of the terminal 102 recognizes the upper layer identification of the terminal 101 and the upper layer of the head terminal If the identifiers are the same, it is determined that the terminal 101 is the head terminal.
  • the V2X layer of the terminal 101 can carry the second information in the V2X layer message during the V2X layer interaction with the terminal 102, and pass the V2X layer message
  • the second information is sent to the V2X layer of the terminal 102.
  • the upper layer of the V2X layer of the terminal 101 may indicate to the V2X layer of the terminal 101 that the terminal 101 is the head terminal and/or indicate the upper layer identifier of the head terminal in the terminal device group where the terminal 101 is located.
  • the specific indication method can be indicated by the value of a specific bit. For example, when the specific bit is configured as 1 (or 0), it means that the terminal 101 is the head terminal; otherwise, it means that the terminal 101 is not the head terminal.
  • the above V2X layer message may be a message sent by the V2X layer of the terminal 101 to the V2X layer of the terminal 102 to request the establishment of the SL, such as the upper layer SL communication request message .
  • the above V2X layer message may be a message indicating acceptance of the SL establishment request sent by the V2X layer of the terminal 101 to the V2X layer of the terminal 102, such as an upper layer SL communication acceptance message.
  • the V2X layer message may be a message sent by the V2X layer of the terminal 101 to the V2X layer of the terminal 102 to request to maintain the SL connection, such as the SL communication keep connection message, or,
  • the V2X layer message may be a message sent by the terminal 101 to the V2X layer of the terminal 102 after the terminal 101 receives the message sent by the terminal 102 for requesting to maintain the SL connection, and the message indicating acceptance to maintain the SL connection is sent, such as the SL communication maintain connection confirmation message .
  • the SL mentioned here may be a V2X layer link between the terminal 101 and the terminal 102.
  • V2X layer of the terminal 101 may send the above V2X layer messages based on the PC5-S protocol.
  • the V2X layer of the terminal 102 After receiving the V2X layer message carrying the second information, the V2X layer of the terminal 102 can determine the upper layer identifier of the head terminal according to the second information, and indicate the upper layer identifier of the head terminal to the AS layer of the terminal 102, so that the AS layer of the terminal 102 The layer may determine whether the terminal 101 is the head terminal according to the first information received from the AS layer of the terminal 101.
  • the first information may include the mapping relationship between the upper layer identifier of the terminal 101 and the AS layer identifier of the terminal 101, and the first information may include the mapping relationship between the upper layer identifier of the terminal 101 and the V2X layer identifier of the terminal 101, Or the first information only includes the upper-layer identification of the terminal 101 in three cases, respectively identifying whether the terminal 101 is the head terminal.
  • the specific identification method refer to the introduction of the above method 1, method 2, and method three, which will not be repeated here.
  • the terminal 101 can When the mapping relationship between the upper layer ID and the AS layer ID changes, the first information is sent to the terminal 102, and the terminal 102 determines the AS layer ID of the head terminal according to the above method, and saves the AS layer ID of the head terminal.
  • the AS layer identifier of the head terminal identifies whether the AS layer message comes from the head terminal.
  • the first information includes the mapping relationship between the upper-layer identifier of the terminal 101 and the V2X layer identifier of the terminal 101
  • the terminal 101 can set the mapping relationship between the upper-layer identifier and the V2X layer identifier
  • the first information is sent to the terminal 102, and the terminal 102 determines the V2X layer identifier of the head terminal according to the above method, and saves the V2X layer identifier of the head terminal, and then can identify whether the AS layer message is based on the V2X layer identifier of the head terminal From the head terminal.
  • the V2X layer identifier of the terminal 101 here may be the layer 2 identifier of the terminal 101, such as the layer 2 source identifier and/or the layer 2 destination identifier.
  • the terminal 101 can send the first message every time it sends an AS-layer message to the terminal 102 in the role of the head terminal. Information, the terminal 102 needs to identify whether the AS layer message comes from the head terminal each time according to the first information in the AS layer message.
  • the AS layer of the terminal 101 may also send any one of a logical channel ID or an AS layer message indication to the AS layer of the terminal 102.
  • the logical channel ID or AS layer message indication may be sent through the same AS layer message as the first information.
  • the logical channel ID can be used to indicate whether the message carries an AS layer message.
  • the range of logical channel IDs that carry messages above the AS layer can be pre-configured, and/or the range of logical channel IDs that carry AS-layer messages can be pre-configured, so that the message can carry information that carries messages above the AS layer.
  • the AS layer message indication can also be used to indicate whether the message carries an AS layer message.
  • the AS layer message indication can be the value of a specific bit, for example, when the AS layer of the terminal 101 sends a message, the value of a specific bit When it is 1 (or 0), it may indicate that the message is used to carry an AS layer message; otherwise, when the value of the specific bit is 0 (or 1), it may indicate that the message does not carry an AS layer message.
  • the AS layer of the terminal 102 determines that the message carries the AS layer message, the AS layer of the terminal 102 does not need to submit the message to the upper layer of the AS layer for message processing. At this time, the terminal 102 can The AS layer of the terminal 102 processes the message; otherwise, if the AS layer of the terminal 102 determines that the message does not carry an AS layer message, the AS layer of the terminal 102 needs to submit the message to the upper layer of the AS layer for message processing.
  • the AS layer of the terminal 101 may carry the above logical channel ID or AS layer message indication and the first information in the same message and send it, and the AS layer of the terminal 101 may also send the first information and logical information through multiple AS layer messages.
  • the AS layer of the terminal 101 may also send the first information and the AS layer message indication through multiple AS layer messages, respectively.
  • the second information involved in the above embodiments may specifically include the upper layer identifier of the terminal 101 (including the V2X layer and/or the V2X layer and higher layer identifiers), and information used to indicate that the upper layer identifier is the identifier of the head terminal device of the terminal device group One or more of the group ID of the terminal device group, the identification of the member terminals in the terminal device group, or the information used to indicate the number of member terminals in the terminal device group.
  • the information used to indicate that the upper layer identifier is the identifier of the head terminal device of the terminal device group may be a specific value of a specific bit in the first information, for example, the value of a specific bit of the second information is 1 (or 0), indicating that the upper-layer identifier indicated by the second information is the identifier of the head terminal device of the terminal device group.
  • the group ID of the terminal device group can be used to indicate the terminal device group to which the head terminal device belongs. If the terminal identifier itself can distinguish different terminal device groups, the first information does not need to carry the group ID.
  • the identities of the member terminals in the terminal device group can be used to indicate the member terminals in the terminal device group.
  • the information used to indicate the number of member terminals in the terminal device group can be used to indicate the number of member terminals in the terminal device group.
  • the AS layer of the terminal 101 may also send first indication information to the terminal 102 in the terminal device group.
  • the first indication information may be used to indicate that the terminal 102 is not allowed to configure resources Forward and/or dispatch to other terminals.
  • the head terminal can prohibit other terminals in the terminal device group from forwarding and/or scheduling resource configuration.
  • the network device 103 may also send the above first indication information to the terminal 102 in the terminal device group to prohibit other terminals in the terminal device group from forwarding and/or scheduling resource configuration.
  • the network device 103 may also send second indication information to the terminal 101, where the second indication information may be used to indicate that the terminal 101 is allowed to forward and/or schedule the resource configuration to other terminals (such as the terminal 102) in the terminal device group.
  • the above first indication information and or second indication information can be expressed by the value of a specific bit. For example, when the value of a specific bit in an AS layer message is 1 (or 0), it means that the AS layer message is not allowed to be received Of the terminal forwards and/or schedules the resource configuration to other terminals. When the value of the specific bit in the AS layer message is 0 (or 1), it means that the terminal receiving the AS layer message is allowed to forward and/or schedule the resource configuration to other terminals.
  • the first information may be carried in radio resource control (radio resource control, RRC), such as an RRC reconfiguration message or other RRC messages.
  • RRC radio resource control
  • the first information can also be carried in physical layer messages.
  • the terminal 101 sends the first information to the terminal 102
  • the first information can be carried in sidelink control information (SCI), and the terminal 101 sends the first information to the network device.
  • SCI sidelink control information
  • the first information may be carried in downlink control information (download control information, DCI).
  • DCI downlink control information
  • the first information may also be carried in a media access control (MAC) layer message, such as a MAC control element (CE) message.
  • MAC media access control
  • CE MAC control element
  • a terminal device identification method provided by an embodiment of the present application may include the following steps:
  • the upper layer of the terminal 101 (here, the layer above the V2X layer), sends second information to the upper layer of the terminal 102, and the second information is used to indicate the upper layer identifier of the head terminal.
  • the second information may include the upper-layer identifier of the terminal 101, information indicating that the upper-layer identifier is the identity of the head terminal, the group ID of the terminal device group, the identifiers of the member terminals in the terminal device group, or the number of member terminals.
  • the above second information may be sent during the authentication process between the terminal 102 and the terminal 101 or the group creation process of the terminal device group, the group member joining process, or the discovery process. Based on the above second information, the upper layer of the terminal 102 can learn the upper layer identifier of the head terminal.
  • the upper layer of the terminal 102 indicates the upper layer identifier of the head terminal to the AS layer of the terminal 102.
  • S203 The AS layer of the terminal 101 sends the mapping relationship between the upper layer identifier of the terminal 101 and the AS layer identifier to the AS layer of the terminal 102.
  • the AS layer of the terminal 102 determines the AS layer identity of the head terminal according to the mapping relationship and the upper layer identity of the head terminal.
  • the terminal device identification method provided by the embodiment of the present application may include the following steps:
  • the upper layer of the terminal 101 (here, the layer above the V2X layer) indicates to the V2X layer of the terminal 101 that it is the head terminal in the terminal device group;
  • the V2X layer of the terminal 101 sends second information to the V2X layer of the terminal 102, where the second information is used to indicate the upper layer identifier of the head terminal.
  • the second information may specifically include the upper layer identifier of the terminal 101 (the upper layer identifier here may be the V2X layer identifier of the terminal 101 and/or the identifier of the layer above the V2X layer), information indicating that the upper layer identifier is the identifier of the head terminal, and the terminal One or more of the group ID of the device group, the identification of the member terminals in the terminal device group, or the information used to indicate the number of member terminals.
  • the V2X layer of the terminal 101 may send the above second information to the V2X layer of the terminal 102 during the establishment or maintenance of the SL.
  • the V2X layer of the terminal 102 receives the second information from the V2X layer of the terminal 101, so that the V2X layer of the terminal 102 can determine the upper layer identifier of the head terminal.
  • the V2X layer of the terminal 102 indicates the upper layer identifier of the head terminal to the AS layer of the terminal 102.
  • the AS layer of the terminal 101 sends the mapping relationship between the upper layer identifier of the terminal 101 and the AS layer identifier to the AS layer of the terminal 102.
  • the AS layer of the terminal 102 determines the AS layer identifier of the head terminal according to the mapping relationship and the upper layer identifier of the head terminal.
  • the first information can also be used to indicate that the terminal 101 is the head terminal in the terminal device group, so the AS layer of the terminal 102 can determine that the terminal 101 is the head terminal based on this information to implement the AS layer Head terminal identification.
  • the upper layer of the terminal 101 can indicate to the AS layer of the terminal 101 that the terminal 101 is the head terminal.
  • the first information may include information for indicating that the terminal 101 is the head terminal device in the terminal device group, such as a specific bit of 0 or 1.
  • the first information may also include the group ID of the terminal device group to indicate the head
  • the terminal identification itself can distinguish different terminal device groups, the first information does not need to carry the group ID; the first information may also include the identification and/or usage of the member terminals in the terminal device group. For information indicating the number of member terminals in the terminal device group.
  • the first information can also implicitly indicate that the terminal 101 is the head terminal device in the terminal device group.
  • the first information includes the AS layer multicast configuration information of SL (or called SL AS layer multicast configuration information)
  • SL AS layer multicast configuration information It means that the terminal 101 is the head terminal device in the terminal device group.
  • the AS-layer multicast configuration information of the SL may include one or more of the group ID of the terminal device group, the resource configuration of the terminal device group, or the identities of the member terminals in the terminal device group.
  • the terminal 101 may also indicate the AS-layer multicast configuration parameters to the terminal 102 through the AS-layer multicast configuration information sent to the terminal 102.
  • the first information may also be used to indicate the SL resource pool
  • the AS layer of the terminal 102 may determine that the terminal 101 is the head terminal after determining that the first information indicates the SL resource pool.
  • the AS layer of the terminal 102 may also determine that the SL resource pool indicated by the first information is only used to perform group-related services related to the terminal 101.
  • the above first information can be carried by the AS layer multicast message, AS layer broadcast message, the message used to request the establishment of SL connection, and the message used to indicate the acceptance of the SL connection establishment request sent by the AS layer of the terminal 101 to the AS layer of the terminal 102.
  • the message used to request the establishment of the SL connection can be sent by the AS layer of the terminal 101 to the AS layer of the terminal 102, and can be used to request the establishment of the AS layer SL connection between the terminal 101 and the terminal 102.
  • the message used to indicate the acceptance of the SL connection establishment request can be sent by the AS layer of the terminal 101 to the AS layer of the terminal 102 when receiving the message sent by the AS layer of the terminal 102 to request the establishment of the SL. request.
  • the message used to indicate SL connection configuration or reconfiguration can be used to carry the AS layer configuration parameters of the SL between the terminal 101 and the terminal 102.
  • the terminal 101 can also send fourth information to the terminal 102 or other terminals in the terminal device group.
  • the fourth information is used to indicate that the terminal 102 or other terminals in the terminal device group are not allowed.
  • the other terminals are terminal devices in the terminal device group to which the terminal 101 belongs.
  • a terminal device identification method provided by an embodiment of the present application may include the following steps:
  • S401 The upper layer of the terminal 101 indicates to the AS layer that the terminal 101 is the head terminal.
  • the AS layer of the terminal 101 sends an SL connection establishment request to the AS layer of the terminal 102, and the SL connection establishment request carries the first information.
  • the first information is used to indicate that the terminal 101 is the head terminal in the terminal device group, and the SL connection establishment request is used to request the establishment of an AS layer SL connection between the terminal 101 and the terminal 102.
  • the AS layer of the terminal 102 determines that the terminal 101 is the head terminal according to the first information, and/or determines that the AS layer identifier of the terminal 101 is the AS layer identifier of the head terminal.
  • the AS layer of the terminal 102 After receiving the SL connection establishment request, the AS layer of the terminal 102 sends an SL connection establishment response message to the terminal 101 to indicate acceptance or rejection of the request.
  • the SL connection establishment response message may be a message used to indicate acceptance of the SL connection establishment request.
  • the AS layer of the terminal 101 can send the SL connection establishment response to the AS layer of the terminal 102
  • the message (such as a message used to indicate acceptance of the SL connection establishment request) carries the above first information.
  • a terminal device identification method provided by an embodiment of the present application may include the following steps:
  • S501 The upper layer of the terminal 101 indicates to the AS layer that the terminal 101 is the head terminal.
  • S502 The AS layer of the terminal 101 sends an SL connection establishment request to the AS layer of the terminal 102.
  • the AS layer of the terminal 102 After receiving the SL connection establishment request, the AS layer of the terminal 102 sends an SL connection establishment response message to the terminal 101 to indicate that the request is accepted.
  • the SL connection establishment response message may be a message used to indicate acceptance of the SL connection establishment request.
  • the AS layer of the terminal 101 sends an SL connection reconfiguration or configuration message to the AS layer of the terminal 102.
  • the SL connection reconfiguration or configuration message can be used to indicate the configuration information of the SL connection.
  • the SL connection reconfiguration Or the configuration message carries the first information.
  • the first information is used to indicate that the terminal 101 is the head terminal in the terminal device group, or the first information is SL AS layer multicast configuration information in the SL connection reconfiguration or configuration message.
  • the AS layer of the terminal 102 determines that the terminal 101 is the head terminal according to the first information, and/or determines that the AS layer identifier of the terminal 101 is the AS layer identifier of the head terminal.
  • a terminal device identification method provided by an embodiment of the present application may include the following steps:
  • the upper layer of the terminal 101 indicates to the AS layer that the terminal 101 is the head terminal.
  • the AS layer of the terminal 101 sends the first information to the AS layer of the terminal 102 through the AS layer broadcast message or the AS layer multicast message.
  • the AS layer of the terminal 102 determines that the terminal 101 is the head terminal according to the first information received from the AS layer of the terminal 101, and/or determines that the AS layer identifier of the terminal 101 is the AS layer identifier of the head terminal.
  • the AS layer of the terminal 101 can also use the RRC protocol messages of the PC5 interface, such as the PC5-RRC connection establishment request message, the PC5-RRC connection establishment message, the PC5-RRC connection reconfiguration message, or the terminal capability report message, terminal Assist information (UE assistance information), sidelink terminal information (sidelink UE information), or buffer status report (buffer status report, BSR), send the first information to the AS layer of the network device 103, thereby indicating the terminal 101 to the network device 103 For the head terminal.
  • the RRC protocol messages of the PC5 interface such as the PC5-RRC connection establishment request message, the PC5-RRC connection establishment message, the PC5-RRC connection reconfiguration message, or the terminal capability report message, terminal Assist information (UE assistance information), sidelink terminal information (sidelink UE information), or buffer status report (buffer status report, BSR)
  • a terminal device identification method provided by an embodiment of the present application may include the following steps:
  • the upper layer of the terminal 101 indicates to the AS layer that the terminal 101 is the head terminal.
  • the AS layer of the terminal 101 sends one of an RRC connection establishment request message, a terminal capability report message, UE assistance information, sidelink UE information, or BSR to the AS layer of the network device 103, where the first information is carried.
  • the AS layer of the network device 103 determines that the terminal 101 is the head terminal according to the first information received from the AS layer of the terminal 101, and/or determines that the AS layer identifier of the terminal 101 is the AS layer identifier of the head terminal.
  • the network device 103 may also send fifth information to other terminals in the terminal device group.
  • the fifth information may indicate that other terminals are not allowed to forward and schedule resource configuration.
  • the other terminals and the terminal 101 belong to the same terminal device group.
  • the other terminal may be the terminal 102.
  • the network device 103 may send the above fifth information after the step shown in S703.
  • the network device may also send sixth information to the head terminal, where the sixth information may be used to indicate that the head terminal is allowed to forward and/or schedule resource configuration to member terminals in the terminal device group, or the sixth information may be used to indicate that the head terminal is not allowed
  • the terminal forwards and/or schedules the resource configuration to the member terminals in the terminal device group.
  • the steps performed by the above network device 103 may also be performed by a roadside unit, which can communicate with the terminal 101.
  • the terminal device identification method provided by the embodiment of the present application with reference to Figs. 1 to 10
  • the following describes the communication device provided by the embodiment of the present application with reference to Figs. 11 to 12, the communication device introduced here, It can be used to implement the methods provided in the embodiments of the present application.
  • the communication device described below may include hardware structures and/or software modules corresponding to each function.
  • this application can be implemented in the form of hardware, computer software or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution.
  • an embodiment of the present application provides a communication device 1100.
  • the communication device 1100 can be used to perform the steps performed by the first terminal device/terminal 101 or the second terminal device/terminal 102 in the foregoing method embodiment.
  • the communication device 1100 may include a transceiving unit 1101 and a processing unit 1102, where the transceiving unit 1101 can be used for the communication device to communicate, and the processing unit 1102 can be used for the communication device to implement the method described by the first terminal.
  • the transceiver unit 1101 may be used to send first information to the AS layer of the second communication device through the AS layer, and the first information is used to determine the first information.
  • a communication device is the head terminal device in the terminal device group.
  • the terminal device group is a terminal device group to which the first communication device belongs.
  • the second communication device may belong to the terminal device group.
  • the first information shown above may include the mapping relationship between the upper-layer terminal identifier of the first communication device and the AS layer identifier of the first communication device, and the upper-layer terminal identifier of the first communication device The mapping relationship with the V2X layer identifier of the Internet of Vehicles of the first communication device, or the upper terminal identifier of the first communication device.
  • the transceiving unit 1101 may also be used to send second information to the second communication device, and the second information may be used to indicate the upper-level terminal identifier of the head terminal device in the terminal device group.
  • the above-mentioned second information may include the upper-layer terminal identifier of the first communication device (may include the V2X layer identifier and/or the identifier of the layer above the V2X layer), and is used to indicate that the upper-layer terminal identifier is the terminal device group Of the identification information of the head terminal device, the group identification group ID of the terminal device group, the identification of the member terminals in the terminal device group, or the information used to indicate the number of member terminals in the terminal device group One or more kinds of information.
  • the transceiving unit 1101 can pass through the upper layer of the first communication device, the authentication process, the group creation process, the group member joining process, or the discovery process between the first communication device and the second communication device During the discovery process, the second information is sent to the upper layer of the second communication device.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of a side link SL; or a message for accepting an SL establishment request, or a message for requesting to maintain an SL connection; Or, used to indicate acceptance of the message to maintain the SL connection.
  • the above SL is an upper layer link between the first communication device and the second communication device.
  • the transceiving unit 1101 can also send the second information to the V2X layer of the second communication device through the V2X layer; before sending the second information, the processing unit 1102 can be used to send the second information from the upper layer of the first communication device to The V2X layer of the first communication device notifies third information, and the third information is used to indicate the upper layer identifier of the head terminal device and/or used to indicate that the first communication device is the head terminal device.
  • the transceiver unit 1101 can also be used to send a logical channel identification ID to the AS layer of the second communication device through the AS layer, where the logical channel ID is used to indicate whether the message carries an AS layer message; or, the transceiver unit 1101 can also be used Sending an AS layer message indication to the AS layer of the second communication device through the AS layer, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer of the second communication device can determine whether the received message carries an AS layer message.
  • the transceiver unit 1101 may also send the second information to the V2X layer of the second communication device based on the PC5-S protocol through the V2X layer.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device includes at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or, the CS of the first communication device -RNTI; or, the interrupted wireless network temporary identification INT-RNTI of the first communication device; or, the paging wireless network temporary identification P-RNTI of the first communication device; or, the system of the first communication device Information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier RA of the first communication device -RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive wireless network temporary identifier I-RNTI of the first communication device; or, the first communication device Or, the layer 1
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may further include information for indicating that the first communication device is the head terminal device in the terminal device group, for example, in a message sent by the first communication device, a specific When the value of the bit is configured as 0 (or 1), it indicates that the first communication device is the head terminal device.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment messages; or, PC5-RRC connection reconfiguration message; or terminal capability report message; or terminal assistance information; or side link terminal information; or buffer status report; or message for requesting the establishment of SL; or, used to indicate A message for accepting an SL establishment request; or a message for indicating configuration information of the SL; the SL is an AS layer link between the first communication device and the second communication device.
  • the first information includes one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or, the terminal device group Or, the identification of the member terminal in the terminal device group; or, the information used to indicate the number of member terminals in the terminal device group.
  • the first information may include AS layer multicast groupcast configuration information of the SL.
  • the transceiver unit 1101 may also send fourth information to the second terminal device, where the fourth information is used to indicate that the second terminal device is not allowed to forward to other terminal devices and to schedule resource configuration. Is a terminal device in the terminal device group.
  • the transceiver unit 1101 may receive the first information from the AS layer of the first communication device through the AS layer of the second terminal device, and the processing The unit 1102 determines that the first communication device is the head terminal device in the terminal device group according to the first information.
  • the first communication device belongs to the terminal device group.
  • the above-mentioned second communication device may belong to the terminal device group.
  • the processing unit 1102 may determine that the first terminal device is the head terminal device.
  • the processing unit 1102 may determine the V2X-layer terminal identifier of the head terminal device according to the upper terminal identifier of the head terminal device and the second mapping relationship. According to the AS layer terminal identifier of the first terminal device, the V2X layer identifier of the head terminal device can be determined. If the V2X layer identifier of the first terminal device is the same as the V2X layer terminal identifier of the head terminal device, the processing unit 1102 can determine the first terminal device For the head terminal device.
  • the processing unit 1102 may determine that the upper-layer terminal identifier of the first communication device is the same as the upper-layer terminal identifier of the head terminal device, and then determine the first The terminal device is a head terminal device.
  • the transceiving unit 1101 may also receive second information from the upper layer of the first communication device through the upper layer of the second communication device, and the second information is used to indicate the status of the head terminal device in the terminal device group.
  • the upper-layer terminal identifier, the transceiver unit 1101 may also indicate the upper-layer terminal identifier of the head terminal device to the AS layer of the second communication device through the upper layer of the second communication device.
  • the above-mentioned second information includes one or more of the following information: the upper terminal identifier of the first communication device (which may include the V2X layer identifier and/or the identifier of the layer above the V2X layer); or, it is used to indicate
  • the upper-layer terminal identifier is information about the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the identifier of the member terminal in the terminal device group; or, it is used to indicate Information about the number of member terminals in the terminal device group.
  • the transceiving unit 1101 may also use the upper layer of the second communication device in the authentication process, the group creation process, the group member joining process, or the discovery process between the first communication device and the second communication device. , Receiving the second information from the upper layer of the first communication device.
  • the above-mentioned first information may be carried in the RRC reconfiguration message or the MAC CE message.
  • the above-mentioned second information can be carried in any of the following messages: a message for requesting to establish an SL; or a message for accepting an SL establishment request, or a message for requesting to maintain an SL connection; or , Used to indicate acceptance of the message to maintain the SL connection; the SL is the upper layer link between the first communication device and the second communication device.
  • the transceiver unit 1101 may also receive a logical channel ID from the AS layer of the second communication device through the AS layer of the second communication device, where the logical channel ID is used to indicate whether the message carries an AS layer message.
  • the transceiver unit 1101 may also receive an AS layer message indication from the AS layer of the second communication device through the AS layer of the second communication device, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer identifier of the first communication device described above may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device may include at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or CS-RNTI; or, the interrupted wireless network temporary identifier INT-RNTI of the first communication device; or, the paging wireless network temporary identifier P-RNTI of the first communication device; or, the first communication device System information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier of the first communication device RA-RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive radio network temporary identifier I-RNTI of the first communication device; or, the first communication The layer 1 source ID of the device; or, the
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may include information for indicating that the first communication device is the head terminal device in the terminal device group.
  • the above-mentioned first information can be carried in any one of the following messages: AS-layer multicast message; or AS-layer broadcast message; or, PC5-RRC connection establishment request message; or, PC5-RRC connection establishment message; or , PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, message for requesting the establishment of SL; or, for A message indicating acceptance of an SL establishment request; or a message indicating configuration information of the SL; the SL is an AS layer link between the first communication device and the second communication device.
  • the above-mentioned first information may include one or more of the following information: information indicating that the first communication device is the head terminal device in the terminal device group; or, the Group of the terminal device group ID; or, the identification of a member terminal in the terminal device group; or, information used to indicate the number of member terminals in the terminal device group.
  • the first information includes AS layer multicast groupcast configuration information of the SL.
  • the transceiver unit 1101 may also send fifth information to the third communication device, and the fifth information is used to indicate that the third communication device is not allowed to forward to other communication devices And scheduling resource configuration, the third communication device and the other communication device are terminal devices in the terminal device group.
  • the transceiver unit 1101 can be used to send SL AS layer multicast groupcast configuration information to the second communication device, and the first communication device and the second communication device belong to the same
  • the AS-layer multicast groupcast configuration information is used for the second communication device to configure the SL AS-layer multicast parameters.
  • the transceiver unit 1101 may receive SLAS layer multicast groupcast configuration information from the first communication device, and the first communication device and the second communication device belong to the same terminal device group,
  • the SL AS layer multicast groupcast configuration information is used for the second communication device to configure SL AS layer multicast parameters.
  • the communication device 1200 provided by the embodiment of the present application may further include a transceiver 1201, a memory 1202, and a processor 1203.
  • the transceiver 1201 may be used for the communication device 1200 to communicate; 1202, can be used to store program instructions; the processor 1203, can be used to call and run the program instructions from the memory 1202 to execute the first terminal device/terminal 101/second terminal device in the above method embodiment /Terminal 102/Network equipment 103/Steps performed by the roadside unit.
  • the transceiver 1201 may be specifically used to implement the above-mentioned functions implemented by the transceiving unit 1101; the processor 1203 may be specifically used to implement the above-mentioned functions implemented by the processing unit 1102.
  • the communication device 1200 may further include an antenna 1204 for coupling with the transceiver 1201 to support the transceiver 1201 to implement wireless communication through the Uu air interface and/or the PC5 air interface.
  • the transceiver 1201 may be used to send first information to the AS layer of the second communication device through the AS layer, and the first information is used to determine that the first communication device is The head terminal device in the terminal device group.
  • the terminal device group is a terminal device group to which the first communication device belongs.
  • the second communication device may belong to the terminal device group.
  • the first information shown above may include the mapping relationship between the upper-layer terminal identifier of the first communication device and the AS layer identifier of the first communication device, and the upper-layer terminal identifier of the first communication device The mapping relationship with the V2X layer identifier of the Internet of Vehicles of the first communication device, or the upper terminal identifier of the first communication device.
  • the transceiver 1201 may also be used to send second information to the second communication device, and the second information may be used to indicate the upper terminal identifier of the head terminal device in the terminal device group.
  • the above-mentioned second information may include the upper-layer terminal identifier of the first communication device (may include the V2X layer identifier and/or the identifier of the layer above the V2X layer), and is used to indicate that the upper-layer terminal identifier is the terminal device group Of the identification information of the head terminal device, the group identification group ID of the terminal device group, the identification of the member terminals in the terminal device group, or the information used to indicate the number of member terminals in the terminal device group One or more kinds of information.
  • the transceiver 1201 can pass through the upper layer of the first communication device, the authentication process, the group creation process, the group member joining process, or the discovery process between the first communication device and the second communication device During the discovery process, the second information is sent to the upper layer of the second communication device.
  • the second information may be carried in any of the following messages: a message for requesting the establishment of a side link SL; or a message for accepting an SL establishment request, or a message for requesting to maintain an SL connection; Or, used to indicate acceptance of the message to maintain the SL connection.
  • the above SL is an upper layer link between the first communication device and the second communication device.
  • the transceiver 1201 can also send the second information to the V2X layer of the second communication device through the V2X layer; before sending the second information, the processor 1203 can be used to send the second information from the upper layer of the first communication device to the The V2X layer of the first communication device notifies third information, and the third information is used to indicate the upper layer identifier of the head terminal device and/or used to indicate that the first communication device is the head terminal device.
  • the transceiver 1201 can also be used to send a logical channel identification ID to the AS layer of the second communication device through the AS layer, where the logical channel ID is used to indicate whether the message carries an AS layer message; or, the transceiver 1201 can also be used Sending an AS layer message indication to the AS layer of the second communication device through the AS layer, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer of the second communication device can determine whether the received message carries an AS layer message.
  • the transceiver 1201 may also send the second information to the V2X layer of the second communication device based on the PC5-S protocol through the V2X layer.
  • the first information may be carried in RRC messages (such as RRC reconfiguration messages), physical layer messages (such as SCI or DCI), or media access control layer MAC messages (such as MAC control unit CE messages).
  • RRC messages such as RRC reconfiguration messages
  • physical layer messages such as SCI or DCI
  • media access control layer MAC messages such as MAC control unit CE messages.
  • the AS layer identifier of the first communication device may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device includes at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or, the CS of the first communication device -RNTI; or, the interrupted wireless network temporary identification INT-RNTI of the first communication device; or, the paging wireless network temporary identification P-RNTI of the first communication device; or, the system of the first communication device Information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier RA of the first communication device -RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive wireless network temporary identifier I-RNTI of the first communication device; or, the first communication device Or, the layer 1
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may further include information for indicating that the first communication device is the head terminal device in the terminal device group, for example, in a message sent by the first communication device, a specific When the value of the bit is configured as 0 (or 1), it indicates that the first communication device is the head terminal device.
  • the first information may be carried in any of the following messages: AS-layer multicast messages; or AS-layer broadcast messages; or, PC5-RRC connection establishment request messages; or, PC5-RRC connection establishment messages; or, PC5-RRC connection reconfiguration message; or terminal capability report message; or terminal assistance information; or side link terminal information; or buffer status report; or message for requesting the establishment of SL; or, used to indicate A message for accepting an SL establishment request; or a message for indicating configuration information of the SL; the SL is an AS layer link between the first communication device and the second communication device.
  • the first information includes one or more of the following information: information used to indicate that the first communication device is the head terminal device in the terminal device group; or, the terminal device group Or, the identification of the member terminal in the terminal device group; or, the information used to indicate the number of member terminals in the terminal device group.
  • the first information may include AS layer multicast groupcast configuration information of the SL.
  • the transceiver 1201 may also send fourth information to the second terminal device.
  • the fourth information is used to indicate that the second terminal device is not allowed to forward to other terminal devices and to schedule resource configuration. Is a terminal device in the terminal device group.
  • the transceiver 1201 can receive the first information from the AS layer of the first communication device through the AS layer of the second terminal device, and the processing The device 1203 determines that the first communication device is the head terminal device in the terminal device group according to the first information.
  • the first communication device belongs to the terminal device group.
  • the above-mentioned second communication device may belong to the terminal device group.
  • the first information includes the first mapping relationship between the upper-layer terminal identifier of the first communication device and the AS layer identifier of the first communication device
  • process The device 1203 may determine the AS-layer terminal identifier of the head terminal device according to the upper-layer terminal identifier of the head terminal device and the first mapping relationship. If the AS layer identifier of the first terminal device is the same as the AS layer terminal identifier of the head terminal device, the processor 1203 may determine that the first terminal device is the head terminal device.
  • the device 1203 may determine the V2X-layer terminal identifier of the head terminal device according to the upper-layer terminal identifier of the head terminal device and the second mapping relationship. According to the AS layer terminal identifier of the first terminal device, the V2X layer identifier of the head terminal device can be determined. If the V2X layer identifier of the first terminal device is the same as the V2X layer terminal identifier of the head terminal device, the processor 1203 can determine the first terminal device For the head terminal device.
  • the processor 1203 may determine that the upper-layer terminal identifier of the first communication device is the same as the upper-layer terminal identifier of the head terminal device, and determine the first The terminal device is a head terminal device.
  • the transceiver 1201 may also receive second information from the upper layer of the first communication device through the upper layer of the second communication device, and the second information is used to indicate the status of the head terminal device in the terminal device group.
  • the upper-layer terminal identifier, the transceiver 1201 may also indicate the upper-layer terminal identifier of the head terminal device to the AS layer of the second communication device through the upper layer of the second communication device.
  • the above-mentioned second information includes one or more of the following information: the upper terminal identifier of the first communication device (which may include the V2X layer identifier and/or the identifier of the layer above the V2X layer); or, it is used to indicate
  • the upper-layer terminal identifier is information about the identifier of the head terminal device of the terminal device group; or, the group ID of the terminal device group; or, the identifier of the member terminal in the terminal device group; or, it is used to indicate Information about the number of member terminals in the terminal device group.
  • the transceiver 1201 may also use the upper layer of the second communication device in the authentication process, the group creation process, the group member joining process, or the discovery process between the first communication device and the second communication device. , Receiving the second information from the upper layer of the first communication device.
  • the above-mentioned first information may be carried in the RRC reconfiguration message or the MAC CE message.
  • the above-mentioned second information can be carried in any of the following messages: a message for requesting to establish an SL; or a message for accepting an SL establishment request, or a message for requesting to maintain an SL connection; or , Used to indicate acceptance of the message to maintain the SL connection; the SL is the upper layer link between the first communication device and the second communication device.
  • the transceiver 1201 may also receive a logical channel ID from the AS layer of the second communication device through the AS layer of the second communication device, where the logical channel ID is used to indicate whether the message carries an AS layer message.
  • the transceiver 1201 may also receive an AS layer message indication from the AS layer of the second communication device through the AS layer of the second communication device, where the AS layer message indication is used to indicate whether the message carries an AS layer message.
  • the AS layer identifier of the first communication device described above may include the physical layer identifier of the first communication device.
  • the physical layer identifier of the first communication device may include at least one of the following identifiers: the cell radio network temporary identifier C-RNTI of the first communication device; or CS-RNTI; or, the interrupted wireless network temporary identifier INT-RNTI of the first communication device; or, the paging wireless network temporary identifier P-RNTI of the first communication device; or, the first communication device System information radio network temporary identifier SI-RNTI; or, the semi-persistent channel state information radio network temporary identifier SP-CSI-RNTI of the first communication device; or, the random access wireless network temporary identifier of the first communication device RA-RNTI; or, the temporary cell radio network temporary identifier Temporary C-RNTI of the first communication device; or, the inactive radio network temporary identifier I-RNTI of the first communication device; or, the first communication The layer 1 source ID of the device; or, the
  • the V2X layer identifier of the first communication device may include the layer 2 identifier of the first communication device.
  • the layer 2 identifier of the first communication device may include the layer 2 source identifier of the first communication device or the layer 2 destination identifier of the first communication device.
  • the first information may include information for indicating that the first communication device is the head terminal device in the terminal device group.
  • the above-mentioned first information can be carried in any one of the following messages: AS-layer multicast message; or AS-layer broadcast message; or, PC5-RRC connection establishment request message; or, PC5-RRC connection establishment message; or , PC5-RRC connection reconfiguration message; or, terminal capability report message; or, terminal assistance information; or, side link terminal information; or, buffer status report; or, message for requesting the establishment of SL; or, for A message indicating acceptance of an SL establishment request; or a message indicating configuration information of the SL; the SL is an AS layer link between the first communication device and the second communication device.
  • the above-mentioned first information may include one or more of the following information: information indicating that the first communication device is the head terminal device in the terminal device group; or, the Group of the terminal device group ID; or, the identification of a member terminal in the terminal device group; or, information used to indicate the number of member terminals in the terminal device group.
  • the first information includes AS layer multicast groupcast configuration information of the SL.
  • the transceiver 1201 may also send fifth information to the third communication device, and the fifth information is used to indicate that the third communication device is not allowed to forward to other communication devices And scheduling resource configuration, the third communication device and the other communication device are terminal devices in the terminal device group.
  • the transceiver 1201 can be used to send SL AS layer multicast groupcast configuration information to the second communication device, and the first communication device and the second communication device belong to the same
  • the AS-layer multicast groupcast configuration information is used for the second communication device to configure the SL AS-layer multicast parameters.
  • the transceiver 1201 can receive the SL AS layer multicast groupcast configuration information from the first communication device, and the first communication device and the second communication device belong to the same terminal device group
  • the SL AS layer multicast groupcast configuration information is used for the second communication device to configure SL AS layer multicast parameters.
  • the communication device 1100 and/or the communication device 1200 described above may be a terminal or a chip or chip system applied to the terminal when performing the steps performed by the terminal 101/terminal 102 in the foregoing method embodiment; the communication device 1100 and /Or when the communication device 1200 executes the steps executed by the network device 103 in the foregoing method embodiment, it may be a base station, or a chip or chip system applied to a base station.
  • the aforementioned communication device 1100 and/or the communication device 1200 may also be a roadside unit, or a chip or chip system applied to a roadside unit.
  • the foregoing embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware, or any other combination.
  • the above-mentioned embodiments may 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 or computer programs.
  • 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 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 a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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Abstract

本申请提供一种终端装置识别方法及装置。该方法由第一终端装置实施时，可由该第一通信装置的接入AS层向第二通信装置的AS层发送第一信息，该第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。采用以上方法，使得第二终端装置的AS层可根据第一信息进行头终端装置的识别，实现对头终端的感知。

Description

一种终端装置识别方法及装置
相关申请的交叉引用
本申请要求在2019年02月15日提交中国专利局、申请号为201910118837.9、申请名称为“一种终端装置识别方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信技术领域，尤其涉及一种终端装置识别方法及装置。
背景技术
目前新空口(new radio，NR)提出了由一个终端辅助网络设备向其他终端进行资源分配的方案。在由多个终端组成的终端装置组场景下，头终端(leader UE)可用于辅助网络设备向终端装置组中的成员终端进行资源分配。
然而，目前并没有明确网络设备以及终端装置组中的成员终端如何感知头终端。
发明内容
本申请提供一种终端装置识别方法及装置，用以提供一种头终端的感知方案，提高头终端的感知效率。
第一方面，本申请提供一种终端装置识别方法，该方法由第一通信装置实施时，可由该第一通信装置的接入AS层向第二通信装置的AS层发送第一信息，该第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。所述终端装置组为第一通信装置所属终端装置组。
采用以上方法，第二通信装置的AS层可根据第一信息进行头终端装置的识别，实现头终端感知。
在一种可能的实现方式中，第二通信装置可属于所述终端装置组。
在一种可能的实现方式中，所述第一信息可包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识的映射关系、所述第一通信装置的上层终端标识与所述第一通信装置的车联网V2X层标识的映射关系，或者所述第一通信装置的上层终端标识。
在一种可能的实现方式中，该第一通信装置还可向第二通信装置发送第二信息，所述第二信息可用于指示所述终端装置组中的头终端装置的上层终端标识。
在一种可能的实现方式中，所述第二信息可包括所述第一通信装置的上层终端标识(例如，可包括V2X层标识和/或V2X层以上层的标识)、用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息、所述终端装置组的组标识group ID、所述终端装置组中的成员终端的标识，或者用于指示所述终端装置组中的成员终端的数量的信息中的一种或多种信息。
在一种可能的实现方式中，第一通信装置向第二通信装置发送第二信息时，可由所述第一通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建 过程、组成员加入过程或发现discovery过程中，向所述第二通信装置的上层发送所述第二信息。
在一种可能的实现方式中，所述第二信息可承载于以下消息中的任意一种：用于请求建立侧链路SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息。以上SL为所述第一通信装置与所述第二通信装置之间的上层链路。
在一种可能的实现方式中，所述第一通信装置向第二通信装置发送所述第二信息时，可由第一通信装置的V2X层向所述第二通信装置的V2X层发送所述第二信息；则在所述第一通信装置向所述第二通信装置发送第二信息之前，还可由该第一通信装置的V2X层的上层，向所述第一通信装置的V2X层通知第三信息，所述第三信息用于指示所述头终端装置的上层标识，和/或，用于指示第一通信装置为头终端装置。
在一种可能的实现方式中，还可由所述第一通信装置的AS层向所述第二通信装置的AS层发送逻辑信道标识ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，可由所述第一通信装置的AS层向所述第二通信装置的AS层发送AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。采用该设计，第二通信装置的AS层可确定接收的消息是否承载AS层消息。
在一种可能的实现方式中，第一通信装置的V2X层可基于PC5-S协议，向所述第二通信装置的V2X层发送所述第二信息。
在一种可能的实现方式中，第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
在一种可能的实现方式中，所述第一通信装置的AS层标识可包括第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在一种可能的实现方式中，所述第一通信装置的V2X层标识，可包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在一种可能的实现方式中，所述第一信息还可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息，如，第一通信装置发送的消息中，特定比特位的取值配置为0(或1)时表示第一通信装置为头终端装置。
在一种可能的实现方式中，所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息； 或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
在一种可能的实现方式中，所述第一信息包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的组标识；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，所述第一信息可包括所述SL的AS层组播groupcast配置信息。
在一种可能的实现方式中，所述第一通信装置还可向所述第二通信装置发送第四信息，所述第四信息用于指示不允许所述第二通信装置向其他终端装置转发以及调度资源配置，所述其他终端装置为所述终端装置组中的终端装置。
若由第二通信装置实施，本申请实施例提供的终端装置识别方法可由第二通信装置的AS层从第一通信装置的AS层接收第一信息，所述第二通信装置可根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置。第一通信装置属于该终端装置组。
在一种可能的实现方式中，所述第二通信装置可属于所述终端装置组。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识之间的第一映射关系，则在确定第一通信装置为头终端装置时，所述第二通信装置的AS层可根据头终端装置的上层终端标识以及所述第一映射关系，确定头终端装置的AS层终端标识。若第一通信装置的AS层标识与头终端装置的AS层终端标识相同，则第一通信装置为头终端装置。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的V2X层标识之间的第二映射关系，则在确定第一通信装置为头终端装置时，所述第二通信装置的AS层可根据头终端装置的上层终端标识以及所述第二映射关系，确定头终端装置的V2X层终端标识。根据第一通信装置的AS层终端标识可确定头终端装置的V2X层标识，若第一通信装置的V2X层标识与头终端装置的V2X层终端标识相同，则第二通信装置可确定第一通信装置为头终端装置。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识，则所述第二通信装置的AS层确定所述第一通信装置的上层终端标识，与头终端装置的上层终端标识相同时，确定第一通信装置为头终端装置。
在一种可能的实现方式中，所述第二通信装置的上层还可从所述第一通信装置的上层接收第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识，所述第二通信装置的上层还可向所述第二通信装置的AS层指示所述头终端装置的上层终端标识。
在一种可能的实现方式中，所述第二信息包括下列信息中的一种或多种：所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)；或者，用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，所述终端装置组的group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，所述第二通信装置的上层可以在所述第一通信装置与所述 第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或discovery过程中，从所述第一通信装置的上层接收所述第二信息。
在一种可能的实现方式中，第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
在一种可能的实现方式中，所述第二信息承可载于以下消息中的任意一种：用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息；所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
在一种可能的实现方式中，所述第二通信装置的AS层还可从所述第二通信装置的AS层接收逻辑信道ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，所述第二通信装置的AS层可从所述第二通信装置的AS层接收AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
在一种可能的实现方式中，所述第一通信装置的AS层标识可以包括所述第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，可以包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在一种可能的实现方式中，所述第一通信装置的V2X层标识，可以包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在一种可能的实现方式中，所述第一信息可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
在一种可能的实现方式中，所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
在一种可能的实现方式中，所述第一信息可包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的Group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，所述第一信息包括所述SL的AS层组播groupcast配置信息。
在一种可能的实现方式中，若第二通信装置为网络设备，所述第二通信装置还可向第 三通信装置发送第五信息，所述第五信息用于指示不允许所述第三通信装置向其他通信装置转发以及调度资源配置，所述第三通信装置以及所述其他通信装置为所述终端装置组中的终端装置。网络设备还可以向头终端发送指示信息，该指示信息用于指示允许头终端向终端装置组中的成员终端转发和/或调度资源配置，或者，该指示信息用于指示不允许头终端向终端装置组中的成员终端转发和/或调度资源配置。
第二方面，本申请实施例还提供一种终端装置识别方法，该方法由第一通信装置执行时，可由第一通信装置向第二通信装置发送SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
采用以上方法，可由第一通信装置通过SL AS层组播groupcast配置信息向第二通信装置指示SL AS层组播参数。
当该方法由第二通信装置执行时，可由第二通信装置从第一通信装置接收SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述SL AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
第三方面，本申请提供一种通信装置，该通信装置可用于实现上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，该硬件或软件包括一个或多个与上述方面及其任一设计中的功能或者方法步骤或者操作相对应的模块。
在一种可能的设计中，该通信装置可包括收发单元以及处理单元，其中，收发单元可用于所述通信装置进行通信，处理单元可用于该通信装置实现上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的功能。
在实现上述第一方面或第一方面任意一种可能的设计中由第一通信装置实现的功能时，收发单元可用于通过AS层向第二通信装置的AS层发送第一信息，该第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。所述终端装置组为第一通信装置所属终端装置组。
在一种可能的实现方式中，第二通信装置可属于所述终端装置组。
在一种可能的实现方式中，所述第一信息可包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识的映射关系、所述第一通信装置的上层终端标识与所述第一通信装置的车联网V2X层标识的映射关系，或者所述第一通信装置的上层终端标识。
在一种可能的实现方式中，收发单元还可用于向第二通信装置发送第二信息，所述第二信息可用于指示所述终端装置组中的头终端装置的上层终端标识。
在一种可能的实现方式中，所述第二信息可包括所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)、用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息、所述终端装置组的组标识group ID、所述终端装置组中的成员终端的标识，或者用于指示所述终端装置组中的成员终端的数量的信息中的一种或多种信息。
在一种可能的实现方式中，收发单元可通过所述第一通信装置的上层，在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或发现 discovery过程中，向所述第二通信装置的上层发送所述第二信息。
在一种可能的实现方式中，所述第二信息可承载于以下消息中的任意一种：用于请求建立侧链路SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息。以上SL为所述第一通信装置与所述第二通信装置之间的上层链路。
在一种可能的实现方式中，收发单元还可通过V2X层向所述第二通信装置的V2X层发送所述第二信息；在发送所述第二信息之前，处理单元可用于，由第一通信装置的上层向所述第一通信装置的V2X层通知第三信息，所述第三信息用于指示所述头终端装置的上层标识，和/或，用于指示第一通信装置为头终端装置。
在一种可能的实现方式中，收发单元还可用于通过AS层向所述第二通信装置的AS层发送逻辑信道标识ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，可由收发单元还可用于通过AS层向所述第二通信装置的AS层发送AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。采用该设计，第二通信装置的AS层可确定接收的消息是否承载AS层消息。
在一种可能的实现方式中，收发单元还可通过V2X层，基于PC5-S协议向所述第二通信装置的V2X层发送所述第二信息。
在一种可能的实现方式中，第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
在一种可能的实现方式中，所述第一通信装置的AS层标识可包括第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在一种可能的实现方式中，所述第一通信装置的V2X层标识，可包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在一种可能的实现方式中，所述第一信息还可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息，如，第一通信装置发送的消息中，特定比特位的取值配置为0(或1)时表示第一通信装置为头终端装置。
在一种可能的实现方式中，所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
在一种可能的实现方式中，所述第一信息包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的组标识；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，所述第一信息可包括所述SL的AS层组播groupcast配置信息。
在一种可能的实现方式中，收发单元还可向所述第二通信装置发送第四信息，所述第四信息用于指示不允许所述第二通信装置向其他终端装置转发以及调度资源配置，所述其他终端装置为所述终端装置组中的终端装置。
在实现上述第一方面或第一方面任意一种可能的设计中由第二通信装置实现的功能时，收发单元可通过第二通信装置的AS层从第一通信装置的AS层接收第一信息，由处理单元根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置。第一通信装置属于该终端装置组。
在一种可能的实现方式中，所述第二通信装置可属于所述终端装置组。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识之间的第一映射关系，则在确定第一通信装置为头终端装置时，处理单元可根据头终端装置的上层终端标识以及所述第一映射关系，确定头终端装置的AS层终端标识。若第一通信装置的AS层标识与头终端装置的AS层终端标识相同，则处理单元可确定第一通信装置为头终端装置。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的V2X层标识之间的第二映射关系，则在确定第一通信装置为头终端装置时，处理单元可根据头终端装置的上层终端标识以及所述第二映射关系，确定头终端装置的V2X层终端标识。根据第一通信装置的AS层终端标识可确定头终端装置的V2X层标识，若第一通信装置的V2X层标识与头终端装置的V2X层终端标识相同，则处理单元可确定第一通信装置为头终端装置。
在一种可能的实现方式中，若所述第一信息包括所述第一通信装置的上层终端标识，则处理单元可在确定所述第一通信装置的上层终端标识，与头终端装置的上层终端标识相同时，确定第一通信装置为头终端装置。
在一种可能的实现方式中，收发单元还可通过第二通信装置的上层还从所述第一通信装置的上层接收第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识，收发单元还可通过第二通信装置的上层向所述第二通信装置的AS层指示所述头终端装置的上层终端标识。
在一种可能的实现方式中，所述第二信息包括下列信息中的一种或多种：所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)；或者，用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，所述终端装置组的group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，收发单元还可通过第二通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或discovery过程中，从所述第一通信装置的上层接收所述第二信息。
在一种可能的实现方式中，第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
在一种可能的实现方式中，所述第二信息承可载于以下消息中的任意一种：用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息；所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
在一种可能的实现方式中，收发单元还可通过所述第二通信装置的AS层从所述第二通信装置的AS层接收逻辑信道ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，收发单元还可通过第二通信装置的AS层从所述第二通信装置的AS层接收AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
在一种可能的实现方式中，所述第一通信装置的AS层标识可以包括所述第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，可以包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在一种可能的实现方式中，所述第一通信装置的V2X层标识，可以包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在一种可能的实现方式中，所述第一信息可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
在一种可能的实现方式中，所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
在一种可能的实现方式中，所述第一信息可包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的Group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
在一种可能的实现方式中，所述第一信息包括所述SL的AS层组播groupcast配置信息。
在一种可能的实现方式中，若第二通信装置为网络设备，收发单元还可向第三通信装置发送第五信息，所述第五信息用于指示不允许所述第三通信装置向其他通信装置转发以及调度资源配置，所述第三通信装置以及所述其他通信装置为所述终端装置组中的终端装 置。网络设备还可以向头终端发送指示信息，该指示信息用于指示允许头终端向终端装置组中的成员终端转发和/或调度资源配置，或者，该指示信息用于指示不允许头终端向终端装置组中的成员终端转发和/或调度资源配置。
在实现上述第二方面或第二方面任意一种可能的设计中由第一通信装置实现的功能时，收发单元可用于向第二通信装置发送SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
在实现上述第二方面或第二方面任意一种可能的设计中由第二通信装置实现的功能时，收发单元可从第一通信装置接收SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述SL AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
另外，该通信装置可包括收发器、存储器以及处理器，其中，收发器，用于所述通信装置进行通信；所述存储器，用于存储程序指令；所述处理器，用于从所述存储器中调用并运行所述程序指令，以实现上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的功能。在实施中，收发器可用于实现上述由收发单元实现的功能；处理器可用于实现上述由处理单元实现的功能。
第四方面，本申请实施例提供一种计算机可读存储介质，包括程序指令，当所述程序指令在计算机上运用时，使得计算机执行上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的方法。
第五方面，本申请实施例提供一种计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面任意一种可能的设计，或上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的方法。
第六方面，本申请实施例提供一种系统芯片，所述系统芯片可以包括处理器，还可以包括存储器(或者该系统芯片与储存器耦合)，所述系统芯片执行储存器中的程序指令，以执行上述第一方面或第一方面任意一种可能的设计的方法，或执行上述第二方面或第二方面任意一种可能的设计中由第一通信装置或第二通信装置实现的功能/方法。“耦合”是指两个部件彼此直接或间接地结合，如耦合可以是指两个部件之间电连接。
示例性的，本申请所涉及的第一通信装置和第二通信装置可以是通信系统中，比如V2X系统中的两个终端设备，也可以是所述终端设备中的系统芯片或者芯片装置，该系统芯片或者芯片装置可以具有如第六方面所述的系统芯片的结构和功能。
以上第三方面至第六方面所带来的技术效果可参见上述第一方面或第二方面的描述，此处不再赘述。
附图说明
图1为本申请提供的一种无线通信系统的架构示意图；
图2为本申请提供的另一种无线通信系统的架构示意图；
图3为本申请提供的另一种无线通信系统的架构示意图；
图4为本申请提供的一种终端装置识别方法的流程示意图；
图5为本申请提供的一种终端装置识别方法的流程示意图；
图6为本申请提供的另一种终端装置识别方法的流程示意图；
图7为本申请提供的另一种终端装置识别方法的流程示意图；
图8为本申请提供的另一种终端装置识别方法的流程示意图；
图9为本申请提供的另一种终端装置识别方法的流程示意图；
图10为本申请提供的另一种终端装置识别方法的流程示意图；
图11为本申请提供的一种通信装置的结构示意图；
图12为本申请提供的另一种通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。
下面对本申请涉及术语进行解释：
1、至少一个，是指一个，或一个以上，即包括一个、两个、三个及以上。
2、多个，是指两个，或两个以上，即包括两个、三个及以上。
3、携带，可以是指某消息用于承载某信息或数据，也可以是指某消息由某信息构成。
4、侧链路(sidelink，SL)，用于终端和终端之间的设备到设备(device to device，D2D)通信。
5、终端装置组，在本申请中是指用于进行组相关业务的多个终端装置的集合，例如，可将一个或多个小区内的多个终端形成一个终端装置组，一种可能的形式为一个车队(platoon)。终端装置组中的终端可以通过组播(groupcast)、单播或广播的方式与其他终端进行通信。终端装置组具有唯一的组标识(groupeID)，可用于标识该终端装置组。
6、sidelink单播是指一个终端向另一个终端之间的传输信息；sidelink组播是指一个终端向多个终端传输信息；sidelink广播是指一个终端向其覆盖范围内所有终端传输信息。
7、头终端，本申请中是指终端装置组内经由核心网或其他网络设备(如基站)或某些终端装置指定的终端。该终端可用于进行组管理，如，管理终端装置组中的成员终端、新加入或删除终端装置组中的成员终端。该头终端也可以用于收集终端装置组内其他终端的传输资源需求并统一向网络设备请求传输资源，这里的传输资源，可以是指用于进行组相关业务的传输资源。核心网可在空口通过高层信令授权终端装置组中的一个终端作为头终端，终端的高层(如应用层)可根据高层信令确定该终端为头终端。终端装置组中除头终端以外的终端，可称为成员终端，或成员终端装置。
8、终端标识(ID)，是指用于唯一标识终端装置的标识信息。根据终端装置协议层结构的划分，终端装置可具备一个或多个标识。例如，当终端装置的协议层包括上层(如应用层)、车联网(vehicle to everything，V2X)层以及接入(access stratum，AS)层，终端装置可分别具有上层标识(或称上层终端标识)、V2X层标识(或称V2X层终端标识)以及AS层标识(或称AS层终端标识)。以上V2X层，可以是位于上层(如应用层)与AS层之间的协议层。应理解，本申请中以应用层为例，对上层进行说明，但不应理解为上层仅指应用层。
其中，AS层可包括层1(L1)(即物理层)，因此AS层标识可包括物理层标识，如包括以下标识中的至少一种：小区无线网络临时标识(cell radio network temporary identifier， C-RNTI)、配置调度无线网络临时标识(configured scheduling RNTI，CS-RNTI)、中断无线网络临时标识(interruption RNTI，INT-RNTI)、寻呼无线网络临时标识(paging RNTI，P-RNTI)、系统信息无线网络临时标识(system information RNTI，SI-RNTI)、半持久信道状态信息无线网络临时标识(semi-persistent channel state information RNTI，SP-CSI-RNTI)、临时小区无线网络临时标识(temporary C-RNTI)、非激活无线网络临时标识(inactive-RNTI，I-RNTI)、层1源标识(L1source ID，或，sourceL1 ID)或者层1目的标识(L1destination ID，或，destination L1 ID)。
在本申请中，可将终端的层2标识，如层2源标识(L2source ID，或，sourceL2 ID)和/或层2目的标识(L2destination ID，或，destination L2 ID)作为终端的V2X层标识。应理解，对于AS层来说，上层可包括V2X层以及V2X层以上的其他层，如应用层。
9、组通信，是指终端装置组内的终端与同一终端装置组内的一个或多个其他终端之间进行通信的过程，也可是终端装置组内的终端向该组之外的其他终端传输信息。终端可以采用单播、组播或广播中的任意一种或多种方式进行组相关业务。
下面，结合附图对本申请实施例进行详细说明。首先，介绍本申请实施例提供的无线通信系统，本申请提供的终端装置识别方法可应用于该系统，然后介绍本申请实施例提供的终端装置识别方法，最后介绍本申请实施例提供的终端和网络设备。
如图1所示，本申请实施例提供的无线通信系统100包括终端101、终端102以及网络设备103。该无线通信系统100的应用场景包括但不限于全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、未来的第五代(5th Generation，5G)系统、新无线(New Radio，NR)通信系统、NR车联网系统或未来基于移动通信的车联网系统等。应理解，本申请实施例提供的无线通信系统100，即可适用于低频场景(sub 6G)，也适用于高频场景(above6G)。
示例性的，终端101、终端102可以是终端(terminal)、移动台(mobile station，MS)、移动终端(mobile terminal)等设备，或芯片、芯片系统等装置，该终端101能够与一个或多个通信系统的一个或多个网络设备进行通信，并接受网络设备提供的网络服务，这里的网络设备包括但不限于图示网络设备103。举例来说，本申请实施例中的终端101、终端102可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，终端101、终端102还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。终端101、终端102也可以是具有通信模块的通信芯片。应理解，终端101可被配置为支持与网络设备103通过通用用户和网络的空口(Universal User to Network interface，Uu空口)进行通信，和/或，终端101以及终端102可被配置为支持sidelink传输，例如终端101与终端102之间可通过直接通信(PC5)空口(即用于终端与终端之间的sidelink通信的空口)进行sidelink通信。
网络设备103可包括基站(base station，BS)，或包括基站以及用于控制基站的无线资源管理设备等，这里的基站，可以是GSM或CDMA系统中的基站(Base Transceiver Station， BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)、小基站(micro/pico eNB)或收发节点(transmission/reception point，TRP)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该基站200可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的基站或者未来演进的PLMN网络中的基站等，例如，NR基站，本申请实施例并不限定。
下面以如图2所示的V2X场景为例，进一步说明本申请实施例提供的无线通信系统100的应用场景。
如图2所示，无线通信系统100可适用于包含车辆队列200的无线通信系统。其中，该车辆队列200由多个终端(如车载移动装置)组成，车辆队列200可以是一个终端装置组，终端101为车辆队列200中的头终端，终端102为车辆队列200中头终端以外的其他终端，从而在本申请中，可由终端101向网络设备103请求传输资源，该传输资源可以用于终端101和/或车辆队列200中的其他终端进行组相关业务。车辆队列200中的其他终端，可向终端101发送辅助信息，如，图2所示的终端102可将其对传输资源的需求发送至终端101，以便于终端101根据终端102对传输资源的需求向网络设备103请求传输资源。
又如图3所示，V2X场景下，无线通信系统还可包括路侧单元(road side unit，RSU)以及至少一个终端组成。其中，路侧单元与终端之间可实现车辆与路边基础设施(vehicle to infrastructure，V2I)通信，终端之间可实现车辆与车辆(vehicle to vehicle，V2V)通信。
下面结合图4，以如图2所示的无线通信系统100为例，说明本申请实施例提供的终端装置识别方法，其中，终端101为车辆队列200中的头终端，终端102为车辆队列200中的非头终端，即终端101与终端102属于同一终端装置组(该终端装置组为车辆队列200)，该终端装置识别方法可包括以下步骤：
S101：终端101的AS层向终端102的AS层发送第一信息。该第一信息可用于确定终端101为终端装置组中的头终端。
S102：终端102的AS层接收该第一信息，并根据该第一信息确定终端101为终端装置组中的头终端装置。
采用以上方法，由终端装置组中的终端101通过AS层向终端102发送第一信息，从而令终端102根据第一信息确定终端101为终端装置组中的头终端，实现头终端的AS层识别。
应理解，如图4所示步骤中，终端101为车辆队列200中的头终端，例如，在S101所示步骤之前，终端101可根据核心网的授权成为车辆队列200中的头终端。其中，核心网可考虑车辆队列200中各个终端的位置信息、路损信息、信号强度、所在车辆的剩余油量或剩余电量等信息中的一种或多种信息，从车辆队列200中选择头终端。
在一种可能的实现方式中，本申请所涉及的第一信息，可包括终端101的上层标识与终端101的AS层标识之间的映射关系。示例性的，终端101的AS层标识可以是终端101的物理层标识，例如，可以是终端101的C-RNTI、CS-RNTI、INT-RNTI、P-RNTI、SI-RNTI、SP-CSI-RNTI、temporary C-RNTI、I-RNTI、层1源标识或者层1目的标识。终端101的上层标识，可以是终端101的AS层以上层的终端标识，例如，终端101的上层标识包括终端101的V2X层标识和/或V2X层以上层的标识。
可选的，终端101可将上层标识与AS层标识携带在同一消息中，以表示该上层标识 与AS层标识之间具有映射关系。或者，终端101可通过其他消息向终端102指示上层标识与AS层标识，并通过第一信息指示上层标识与AS层标识之间的映射关系，例如，终端101向终端102指示多个上层标识以及多个AS层标识，并通过第一信息指示其中一个上层标识与一个AS层标识之间的映射关系。
第一信息还可包括终端101的上层标识与终端101的V2X层标识之间的映射关系。终端101的V2X层标识可以是终端101的层2标识，如终端101的层2源标识和/或层2目的标识。此时终端101的上层标识可以是终端101的V2X层的上层(如应用层)标识。
可选的，终端101可将上层标识与V2X层标识携带在同一消息中，以表示该上层标识与V2X层标识之间具有映射关系。或者，终端101可通过其他消息向终端102指示上层标识与V2X层标识，并通过第一信息指示上层标识与V2X层标识之间的映射关系，例如，终端101向终端102指示多个上层标识以及多个V2X层标识，并通过第一信息指示其中一个上层标识与一个AS层标识之间的映射关系。
另外，第一信息还可以仅包括终端101的上层终端标识，如终端101的V2X层标识和/或V2X层以上层(如应用层)的标识。
在实施中，终端101的上层(V2X层或V2X层以上层)还可向终端102的上层发送第二信息，该第二信息可用于指示终端装置组中头终端的上层标识(如头终端的V2X层标识和/或V2X层以上层的标识)，其中，终端102属于该终端装置组。从而终端102的上层可根据第二信息确定头终端的上层标识，并将该头终端的上层标识指示给终端102的AS层，在终端102的AS层接收第一信息后，终端102可根据第一信息以及头终端的上层标识确定头终端的AS层标识。
下面，针对第二信息所指示的终端101的上层标识包括V2X层标识或V2X层以上层的标识，分别说明终端102的AS层识别头终端的方法：
第一，若第二信息所指示的终端101的上层标识包括V2X层标识，此时终端102的上层(包括V2X层或以上层)可根据第二信息确定头终端的V2X层标识，此后，终端102的上层可将头终端的V2X层标识通知终端102的AS层，由于在进行AS层交互时终端102的AS层能够获知终端101的V2X层标识，从而终端102的AS层可根据头终端的V2X层标识，识别终端101是否为头终端。
第二，若第二信息所指示的终端101的上层标识仅包括上层(这里指V2X层以上层)的标识，终端101的上层可在与终端102进行的上层的交互过程中，将第二信息承载于上层消息，并通过该上层消息将第二信息发送至终端102的上层。示例性的，终端101的上层可在与终端102的上层之间进行的鉴权过程、组创建过程、组成员加入过程或者发现(discovery)过程中，将第二信息发送至终端102。
在接收承载了第二信息的上层消息后，终端102的上层，可根据第二信息确定头终端的上层标识，将头终端的上层标识指示给终端102的AS层，从而终端102的AS层可根据从终端101的AS层接收的第一信息确定终端101是否为头终端。
下面分别介绍几种终端102的AS层在获知头终端的上层标识后，根据第一信息确定终端101是否为头终端的方法：
方法一：若终端101的AS层向终端102的AS层发送的第一信息包括终端101的上层标识与终端101的AS层标识之间的映射关系，终端102的AS层可根据第一信息指示的上层标识与AS层标识之间的映射关系，以及头终端的上层标识，确定头终端装置的AS 层标识。
方法二：若第一信息包括终端101的上层标识与终端101的V2X层标识之间的映射关系，终端102的AS层可根据第一信息指示的上层标识与V2X层标识之间的映射关系，以及头终端的上层标识，确定头终端装置的V2X层标识，此后，终端102的AS层可根据头终端的V2X层标识，识别终端101是否为头终端，若终端101的V2X层标识与头终端的V2X层标识相同，则说明终端101为头终端。
方法三：若第一信息仅包括终端101的上层标识，或者，在头终端识别过程中，终端102的AS层仅解析第一信息携带的上层标识，从而终端102的AS层可根据第一信息确定终端101的上层标识。当终端102的上层根据以上第二信息确定头终端的上层标识后，可将头终端的上层标识指示给终端102的AS层，若终端102的AS层识别终端101的上层标识与头终端的上层标识相同，则确定该终端101为头终端。
第三，若第二信息仅指示终端101的上层标识，终端101的V2X层可在与终端102进行的V2X层的交互过程中，将第二信息承载于V2X层消息，并通过该V2X层消息将第二信息发送至终端102的V2X层。在此之前，终端101V2X层的上层，可向终端101的V2X层指示该终端101为头终端，和/或指示终端101所在终端装置组中头终端的上层标识。具体指示方法，可以是通过特定比特位的取值进行指示，如该特定比特位被配置为1(或0)时，表示终端101为头终端，否则，表示终端101不是头终端。
示例性的，若由终端101向终端102发起SL建立过程，则以上V2X层消息可以是终端101的V2X层向终端102的V2X层发送的用于请求建立SL的消息，如上层SL通信请求消息。若由终端102向终端101发起SL建立过程，则以上V2X层消息可以是终端101的V2X层向终端102的V2X层发送的表示接受SL建立请求的消息，如，上层SL通信接受消息。若终端101与终端102之间的SL已经建立，则V2X层消息可以是终端101的V2X层向终端102的V2X层发送的用于请求保持SL连接的消息，如SL通信保持连接消息，或者，V2X层消息可以是终端101接收终端102发送的用于请求保持SL连接的消息后，终端101的V2X层向终端102的V2X层发送的表示接受保持SL连接的消息，如SL通信保持连接确认消息。这里所述SL，可以是终端101与终端102之间的V2X层链路。
应理解，终端101的V2X层，可基于PC5-S协议发送以上V2X层消息。
在接收承载了第二信息的V2X层消息后，终端102的V2X层，可根据第二信息确定头终端的上层标识，将头终端的上层标识指示给终端102的AS层，从而终端102的AS层可根据从终端101的AS层接收的第一信息确定终端101是否为头终端。示例性的，可根据第一信息包括终端101的上层标识与终端101的AS层标识之间的映射关系、第一信息包括终端101的上层标识与终端101的V2X层标识之间的映射关系，或者第一信息仅包括终端101的上层标识三种情况，分别识别终端101是否为头终端，其具体识别方法，可参照以上方法一、方法二以及方法三部分的介绍，在此不再赘述。
应理解，若采用以上方法一进行第一信息的设置，即第一信息包括终端101的上层(这里指V2X层以上层)标识与终端101的AS层标识之间的映射关系，终端101可在上层标识与AS层标识之间的映射关系发生变化时，向终端102发送该第一信息，由终端102根据以上方法确定头终端的AS层标识，并保存头终端的AS层标识，此后可根据头终端的AS层标识识别AS层消息是否来自于头终端。
若采用以上方法二进行第一信息的设置，即第一信息包括终端101的上层标识与终端 101的V2X层标识之间的映射关系，终端101可在上层标识与V2X层标识之间的映射关系发生变化时，向终端102发送该第一信息，由终端102根据以上方法确定头终端的V2X层标识，并保存头终端的V2X层标识，此后可根据头终端的V2X层标识识别AS层消息是否来自于头终端。示例性的，这里终端101的V2X层标识，可以是终端101的层2标识，如层2源标识和/或层2目的标识。
若采用以上方法三进行第一信息的设置，即第一信息仅包括终端101的上层标识，则终端101可由在每次以头终端的角色向终端102发送AS层消息时，均发送该第一信息，终端102每次需根据AS层消息中的第一信息，识别AS层消息是否来自于头终端。
在实施中，终端101的AS层还可向终端102的AS层发送逻辑信道ID或者AS层消息指示中的任意一种。可选地，该逻辑信道ID或者AS层消息指示，可以与第一信息通过同一AS层消息发送。其中，逻辑信道ID可用于指示该消息是否承载AS层消息。在实现中，可预先配置承载AS层以上层消息的逻辑信道ID的范围，和/或预先配置承载AS层消息的逻辑信道ID的范围，从而可在该消息中携带承载AS层以上层消息的逻辑信道ID，以指示该消息不承载AS层消息，或者，可在该消息中携带承载AS层消息的逻辑信道ID，以指示该消息承载AS层消息。AS层消息指示，也可用于指示该消息是否承载AS层消息，该AS层消息指示可以是特定比特位的取值，例如，当终端101的AS层发送的消息中，特定比特位的取值为1(或0)时，可表示该消息用于承载AS层消息，否则，当该特定比特位的取值为0(或1)时，可表示该消息不承载AS层消息。
根据逻辑信道ID或者AS层消息指示，若终端102的AS层确定该消息承载AS层消息，则终端102的AS层不需要将该消息递交到AS层的上层进行消息处理，此时可由终端102的AS层处理该消息；否则，若终端102的AS层确定该消息不承载AS层消息，则终端102的AS层需要将该消息递交到AS层的上层进行消息处理。
应理解，终端101的AS层可将以上逻辑信道ID或者AS层消息指示与第一信息携带在同一消息中发送，终端101的AS层也可通过多个AS层消息分别发送第一信息以及逻辑信道ID，终端101的AS层也可通过多个AS层消息分别发送第一信息以及AS层消息指示。
以上实施例所涉及的第二信息，具体可包括终端101的上层标识(包括V2X层和/或V2X层以上层标识)、用于指示该上层标识为终端装置组的头终端装置的标识的信息、终端装置组的group ID、终端装置组中的成员终端的标识，或者用于指示终端装置组中的成员终端的数量的信息中的一种或多种信息。其中，用于指示该上层标识为终端装置组的头终端装置的标识的信息，可以是第一信息中特定比特位的特定取值，如，第二信息特定比特位的取值为1(或0)，表示该第二信息所指示的上层标识为终端装置组的头终端装置的标识。终端装置组的group ID，可用于指示头终端装置所属的终端装置组，若终端的标识本身能够区分出不同的终端装置组，则第一信息无需携带group ID。终端装置组中的成员终端的标识，可用于指示该终端装置组中的成员终端。用于指示终端装置组中的成员终端的数量的信息，可用于指示该终端装置组中的成员终端的数量。
可选的，终端101的AS层，在确定终端101为头终端后，还可向终端装置组中的终端102发送第一指示信息，该第一指示信息可用于指示不允许终端102将资源配置转发和/或调度给其他终端。采用该设计，头终端可禁止终端装置组中的其他终端进行资源配置的转发和/或调度。另外，网络设备103还可向终端装置组中的终端102发送以上第一指示信 息，以禁止终端装置组中的其他终端进行资源配置的转发和/或调度。网络设备103还可向终端101发送第二指示信息，该第二指示信息可用于指示允许终端101将资源配置转发和/或调度给终端装置组中的其他终端(如终端102)。以上第一指示信息和或第二指示信息，可通过特定比特位的取值表示.例如，AS层消息中的特定比特位的取值为1(或0)时，表示不允许接收AS层消息的终端将资源配置转发和/或调度给其他终端。当AS层消息中的特定比特位的取值为0(或1)时，表示允许接收AS层消息的终端将资源配置转发和/或调度给其他终端。
示例性的，第一信息可承载于无线资源控制(radio resource control，RRC)，例如RRC重配置消息或其他RRC消息。第一信息还可承载于物理层消息，如，在终端101向终端102发送第一信息时，第一信息可承载于侧链路控制信息(sidelink control information，SCI)，在终端101向网络设备103发送第一信息时，第一信息可承载于下行控制信息(download control information，DCI)。另外，第一信息也可承载于媒体访问控制(media access control，MAC)层消息，如MAC控制单元(control element，CE)消息。
如图5所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S201：终端101的上层(这里指V2X层以上层)，向终端102的上层发送第二信息，第二信息用于指示头终端的上层标识。第二信息可包括终端101的上层标识、用于指示该上层标识为头终端的标识的信息、终端装置组的group ID、终端装置组中的成员终端的标识，或者用于指示成员终端的数量的信息中的一种或多种信息。其中，以上第二信息可以在终端102与终端101之间的鉴权过程或者终端装置组的组创建过程、组成员加入过程或者发现过程中发送。基于以上第二信息，终端102的上层可获知头终端的上层标识。
S202：终端102的上层向终端102的AS层指示头终端的上层标识。
S203：终端101的AS层向终端102的AS层发送终端101的上层标识与AS层标识之间的映射关系。
S204：终端102的AS层，根据该映射关系以及头终端的上层标识，确定头终端的AS层标识。
如图6所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S301：终端101的上层(这里指V2X层以上层)向终端101的V2X层指示自身为终端装置组中的头终端；
S302：终端101的V2X层向取终端102的V2X层发送第二信息，第二信息用于指示头终端的上层标识。第二信息具体可包括终端101的上层标识(这里的上层标识可以是终端101的V2X层标识和/或V2X层以上层的标识)、用于指示该上层标识为头终端的标识的信息、终端装置组的group ID、终端装置组中的成员终端的标识，或者用于指示成员终端的数量的信息中的一种或多种信息。其中，终端101的V2X层可在SL的建立或保持过程中，向终端102的V2X层发送以上第二信息。
S303：终端102的V2X层从终端101的V2X层接收第二信息，从而终端102的V2X层可确定头终端的上层标识。
S304：终端102的V2X层将头终端的上层标识指示给终端102的AS层。
S305：终端101的AS层向终端102的AS层发送终端101的上层标识与AS层标识之间的映射关系。
S306：终端102的AS层根据该映射关系以及头终端的上层标识，确定头终端的AS 层标识。
在另一种可能的实现方式中，第一信息还可用于指示终端101为终端装置组中的头终端，从而终端102的AS层可根据该信息，确定终端101为头终端，实现AS层的头终端识别。在此之前，终端101的上层，可向终端101的AS层指示终端101为头终端。
示例性的，第一信息可包括用于指示终端101为终端装置组中的头终端装置的信息，如特定比特位0或1；第一信息还可包括终端装置组的group ID，以标示头终端所述的终端装置组，若终端的标识本身能够区分出不同的终端装置组，则第一信息无需携带group ID；第一信息还可包括终端装置组中的成员终端的标识和/或用于指示终端装置组中的成员终端的数量的信息。
另外，第一信息还可通过隐式方式指示终端101为终端装置组中的头终端装置，例如，当第一信息包括SL的AS层组播配置信息(或称SL AS层组播配置信息)时，表示终端101为终端装置组中的头终端装置。SL的AS层组播配置信息可包括终端装置组的group ID、终端装置组的资源配置或者终端装置组中的成员终端的标识中的一种或多种信息。
终端101还可通过向终端102发送的AS层组播配置信息，将AS层组播配置参数指示给终端102。
又如，第一信息还可用于指示SL资源池，则终端102的AS层，可在确定第一信息指示了SL资源池后，确定终端101为头终端。示例性的，终端102的AS层还可判断该第一信息指示的SL资源池，仅用于进行与终端101有关的组相关业务。
以上第一信息，可承载于终端101的AS层向终端102的AS层发送的AS层组播消息、AS层广播消息、用于请求建立SL连接的消息、用于表示接受SL连接建立请求的消息或者用于SL连接配置或重配置的消息中。其中，用于请求建立SL连接的消息，可由终端101的AS层发送至终端102的AS层，可用于请求建立终端101与终端102之间的AS层SL连接。用于表示接受SL连接建立请求的消息，可以是终端101的AS层在接收终端102的AS层发送的用于请求建立SL的消息时，向终端102的AS层发送的，可用于表示接受该请求。用于指示SL连接配置或重配置的消息，可以用于承载终端101与终端102之间SL的AS层配置参数。
另外，终端101在确定自身为头终端后，还可向终端102或终端装置组中的其他终端发送第四信息，所述第四信息用于指示不允许终端102或终端装置组中的其他终端转发以及调度资源配置，其他终端为终端101所属的终端装置组中的终端装置。
如图7所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S401：终端101的上层向AS层指示终端101为头终端。
S402：终端101的AS层向终端102的AS层发送SL连接建立请求，该SL连接建立请求中携带第一信息。该第一信息用于指示终端101为终端装置组中的头终端，SL连接建立请求用于请求建立终端101与终端102之间的AS层SL连接。
S403：终端102的AS层根据第一信息确定终端101为头终端，和/或确定终端101的AS层标识为头终端的AS层标识。
S404：终端102的AS层在接收SL连接建立请求后，向终端101发送SL连接建立响应消息，以表示接受或拒绝该请求。SL连接建立响应消息可以是用于表示接受SL连接建立请求的消息。
另外，若以上SL为终端102请求发起的，即终端101的AS层从终端102的AS层接 收SL连接建立请求，则终端101的AS层可在向终端102的AS层发送的SL连接建立响应消息(如用于表示接受SL连接建立请求的消息)中，携带以上第一信息。
如图8所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S501：终端101的上层向AS层指示终端101为头终端。
S502：终端101的AS层向终端102的AS层发送SL连接建立请求。
S503：终端102的AS层在接收SL连接建立请求后，向终端101发送SL连接建立响应消息，以表示接受该请求。SL连接建立响应消息可以是用于表示接受SL连接建立请求的消息。
S504：在SL连接建立后，终端101的AS层向终端102的AS层发送SL连接重配置或配置消息，该SL连接重配置或配置消息可用于指示SL连接的配置信息，该SL连接重配置或配置消息携带第一信息。该第一信息用于指示终端101为终端装置组中的头终端，或者，该第一信息为SL连接重配置或配置消息中的SL AS层组播配置信息。
S505：终端102的AS层根据第一信息，确定终端101为头终端，和/或确定终端101的AS层标识为头终端的AS层标识。
如图9所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S601：终端101的上层向AS层指示终端101为头终端。
S602：终端101的AS层通过AS层广播消息或AS层组播消息，向终端102的AS层发送第一信息。
S603：终端102的AS层根据从终端101的AS层接收的第一信息，确定终端101为头终端，和/或确定终端101的AS层标识为头终端的AS层标识。
另外，终端101的AS层还可通过PC5接口的RRC协议消息，如PC5-RRC连接建立请求消息、PC5-RRC连接建立消息、PC5-RRC连接重配消息，或者，通过终端能力上报消息、终端协助信息(UE assistance information)、侧链路终端信息(sidelink UE information)或者缓存状态报告(buffer status report，BSR)，向网络设备103的AS层发送第一信息，从而向网络设备103指示终端101为头终端。
如图10所示，本申请实施例提供的一种终端装置识别方法可包括以下步骤：
S701：终端101的上层向AS层指示终端101为头终端。
S702：终端101的AS层向网络设备103的AS层发送RRC连接建立请求消息、终端能力上报消息、UE assistance information、sidelink UE information或者BSR中的一种，其中携带第一信息。
S703：网络设备103的AS层根据从终端101的AS层接收的第一信息，确定终端101为头终端，和/或确定终端101的AS层标识为头终端的AS层标识。
网络设备103还可向终端装置组中的其他终端发送第五信息，该第五信息可指示不允许其他终端转发以及调度资源配置，其中，其他终端与终端101属于同一终端装置组。该其他终端可以是终端102。例如，网络设备103可在S703所示步骤之后，发送以上第五信息。网络设备还可以向头终端发送第六信息，该第六信息可用于指示允许头终端向终端装置组中的成员终端转发和/或调度资源配置，或者，该第六信息可用于指示不允许头终端向终端装置组中的成员终端转发和/或调度资源配置。
应理解，以上网络设备103所执行的步骤，也可以由路侧单元执行，该路侧单元能够与终端101通信。
上文中结合图1至图10，介绍了本申请实施例所提供的终端装置识别方法，下面将结合图11至图12，介绍本申请实施例所提供的通信装置，这里所介绍的通信装置，可用于执行本申请实施例所提供的方法。可以理解的是，以下所介绍的通信装置为了实现上述功能，可包含执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件、计算机软件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。
如图11所示，本申请实施例提供的一种通信装置1100。
该通信装置1100可用于执行上述方法实施例中由第一终端装置/终端101或第二终端装置/终端102执行的步骤。
示例性的，该通信装置1100可包括收发单元1101以及处理单元1102，其中，收发单元1101可用于所述通信装置进行通信，处理单元1102可用于该通信装置实现上述方法实施例中由第一终端装置或第二终端装置实现的功能。
示例性的，在执行第一终端装置/终端101所执行的步骤时，收发单元1101可用于通过AS层向第二通信装置的AS层发送第一信息，该第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。所述终端装置组为第一通信装置所属终端装置组。
可选地，该第二通信装置可属于所述终端装置组。
在可能的实现方式中，以上所示第一信息可包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识的映射关系、所述第一通信装置的上层终端标识与所述第一通信装置的车联网V2X层标识的映射关系，或者所述第一通信装置的上层终端标识。
示例性的，收发单元1101还可用于向第二通信装置发送第二信息，所述第二信息可用于指示所述终端装置组中的头终端装置的上层终端标识。
以上所述第二信息可包括所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)、用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息、所述终端装置组的组标识group ID、所述终端装置组中的成员终端的标识，或者用于指示所述终端装置组中的成员终端的数量的信息中的一种或多种信息。
示例性的，收发单元1101可通过所述第一通信装置的上层，在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或发现discovery过程中，向所述第二通信装置的上层发送所述第二信息。
所述第二信息可承载于以下消息中的任意一种：用于请求建立侧链路SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息。以上SL为所述第一通信装置与所述第二通信装置之间的上层链路。
另外，收发单元1101还可通过V2X层向所述第二通信装置的V2X层发送所述第二信息；在发送所述第二信息之前，处理单元1102可用于，由第一通信装置的上层向所述第一通信装置的V2X层通知第三信息，所述第三信息用于指示所述头终端装置的上层标识，和/或，用于指示第一通信装置为头终端装置。
收发单元1101还可用于通过AS层向所述第二通信装置的AS层发送逻辑信道标识ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，可由收发单元1101还可用于通过AS层向所述第二通信装置的AS层发送AS层消息指示，所述AS层消息指示用 于指示所述消息是否承载AS层消息。采用该设计，第二通信装置的AS层可确定接收的消息是否承载AS层消息。
收发单元1101还可通过V2X层，基于PC5-S协议向所述第二通信装置的V2X层发送所述第二信息。
第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
示例性的，所述第一通信装置的AS层标识可包括第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
所述第一通信装置的V2X层标识，可包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在另外的实现方式中，所述第一信息还可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息，如，第一通信装置发送的消息中，特定比特位的取值配置为0(或1)时表示第一通信装置为头终端装置。
所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
示例性的，所述第一信息包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的组标识；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。在实施中，所述第一信息可包括所述SL的AS层组播groupcast配置信息。
另外，收发单元1101还可向所述第二终端装置发送第四信息，所述第四信息用于指示不允许所述第二终端装置向其他终端装置转发以及调度资源配置，所述其他终端装置为所述终端装置组中的终端装置。
在执行由第二通信装置/终端102/网络设备103/路侧单元执行的步骤时，收发单元1101可通过第二终端装置的AS层从第一通信装置的AS层接收第一信息，由处理单元1102根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置。第一通信装置属于该终端装置组。
以上所述第二通信装置可属于所述终端装置组。
若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识之间的第一映射关系，则在确定第一终端装置为头终端装置时，处理单元1102可根据头终端装置的上层终端标识以及所述第一映射关系，确定头终端装置的AS层终端标识。若第一终端装置的AS层标识与头终端装置的AS层终端标识相同，则处理单元1102可确定第一终端装置为头终端装置。
若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的V2X层标识之间的第二映射关系，则在确定第一终端装置为头终端装置时，处理单元1102可根据头终端装置的上层终端标识以及所述第二映射关系，确定头终端装置的V2X层终端标识。根据第一终端装置的AS层终端标识可确定头终端装置的V2X层标识，若第一终端装置的V2X层标识与头终端装置的V2X层终端标识相同，则处理单元1102可确定第一终端装置为头终端装置。
若所述第一信息包括所述第一通信装置的上层终端标识，则处理单元1102可在确定所述第一通信装置的上层终端标识，与头终端装置的上层终端标识相同时，确定第一终端装置为头终端装置。
在实施中，收发单元1101还可通过第二通信装置的上层还从所述第一通信装置的上层接收第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识，收发单元1101还可通过第二通信装置的上层向所述第二通信装置的AS层指示所述头终端装置的上层终端标识。
以上所述第二信息包括下列信息中的一种或多种：所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)；或者，用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，所述终端装置组的group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
示例性的，收发单元1101还可通过第二通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或discovery过程中，从所述第一通信装置的上层接收所述第二信息。
以上所述第一信息可承载于RRC重配消息或MAC CE消息。
以上所述第二信息承可载于以下消息中的任意一种：用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息；所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
示例性的，收发单元1101还可通过所述第二通信装置的AS层从所述第二通信装置的AS层接收逻辑信道ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，收发单元1101还可通过第二通信装置的AS层从所述第二通信装置的AS层接收AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
以上所述第一通信装置的AS层标识可以包括所述第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，可以包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI； 或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在实施中，所述第一通信装置的V2X层标识，可以包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在另外的实现方式中，所述第一信息可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
以上所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
以上所述第一信息可包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的Group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。示例性的，所述第一信息包括所述SL的AS层组播groupcast配置信息。
若第二通信装置为网络设备103/路侧单元，收发单元1101还可向第三通信装置发送第五信息，所述第五信息用于指示不允许所述第三通信装置向其他通信装置转发以及调度资源配置，所述第三通信装置以及所述其他通信装置为所述终端装置组中的终端装置。
另外，若通信装置1100为第一通信装置/终端101，收发单元1101可用于向第二通信装置发送SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
若通信装置1100为第二通信装置/终端102，收发单元1101可从第一通信装置接收SLAS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述SL AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
另外，如图12所示，本申请实施例提供的通信装置1200还可包括收发器1201、存储器1202以及处理器1203，其中，收发器1201，可用于所述通信装置1200进行通信；所述存储器1202，可用于存储程序指令；所述处理器1203，可用于从所述存储器1202中调用并运行所述程序指令，以执行上述方法实施例中由第一终端装置/终端101/第二终端装置/终端102/网络设备103/路侧单元执行的步骤。在实施中，收发器1201具体可用于实现上述由收发单元1101实现的功能；处理器1203具体可用于实现上述由处理单元1102实现的功能。
示例性的，通信装置1200还可包括天线1204，用于与收发器1201耦合，以支持收发器1201通过Uu空口和/或PC5空口实现无线通信。
在执行第一终端装置/终端101所执行的步骤时，收发器1201可用于通过AS层向第 二通信装置的AS层发送第一信息，该第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。所述终端装置组为第一通信装置所属终端装置组。
可选地，该第二通信装置可属于所述终端装置组。
在可能的实现方式中，以上所示第一信息可包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识的映射关系、所述第一通信装置的上层终端标识与所述第一通信装置的车联网V2X层标识的映射关系，或者所述第一通信装置的上层终端标识。
示例性的，收发器1201还可用于向第二通信装置发送第二信息，所述第二信息可用于指示所述终端装置组中的头终端装置的上层终端标识。
以上所述第二信息可包括所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)、用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息、所述终端装置组的组标识group ID、所述终端装置组中的成员终端的标识，或者用于指示所述终端装置组中的成员终端的数量的信息中的一种或多种信息。
示例性的，收发器1201可通过所述第一通信装置的上层，在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或发现discovery过程中，向所述第二通信装置的上层发送所述第二信息。
所述第二信息可承载于以下消息中的任意一种：用于请求建立侧链路SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息。以上SL为所述第一通信装置与所述第二通信装置之间的上层链路。
另外，收发器1201还可通过V2X层向所述第二通信装置的V2X层发送所述第二信息；在发送所述第二信息之前，处理器1203可用于，由第一通信装置的上层向所述第一通信装置的V2X层通知第三信息，所述第三信息用于指示所述头终端装置的上层标识，和/或，用于指示第一通信装置为头终端装置。
收发器1201还可用于通过AS层向所述第二通信装置的AS层发送逻辑信道标识ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，可由收发器1201还可用于通过AS层向所述第二通信装置的AS层发送AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。采用该设计，第二通信装置的AS层可确定接收的消息是否承载AS层消息。
收发器1201还可通过V2X层，基于PC5-S协议向所述第二通信装置的V2X层发送所述第二信息。
第一信息可承载于RRC消息(如RRC重配置消息)、物理层消息(如SCI或DCI)或媒体访问控制层MAC消息(如MAC控制单元CE消息)。
示例性的，所述第一通信装置的AS层标识可包括第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临 时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
所述第一通信装置的V2X层标识，可包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在另外的实现方式中，所述第一信息还可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息，如，第一通信装置发送的消息中，特定比特位的取值配置为0(或1)时表示第一通信装置为头终端装置。
所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
示例性的，所述第一信息包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的组标识；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。在实施中，所述第一信息可包括所述SL的AS层组播groupcast配置信息。
另外，收发器1201还可向所述第二终端装置发送第四信息，所述第四信息用于指示不允许所述第二终端装置向其他终端装置转发以及调度资源配置，所述其他终端装置为所述终端装置组中的终端装置。
在执行由第二通信装置/终端102/网络设备103/路侧单元实现的功能时，收发器1201可通过第二终端装置的AS层从第一通信装置的AS层接收第一信息，由处理器1203根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置。第一通信装置属于该终端装置组。
以上所述第二通信装置可属于所述终端装置组。
若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识之间的第一映射关系，则在确定第一终端装置为头终端装置时，处理器1203可根据头终端装置的上层终端标识以及所述第一映射关系，确定头终端装置的AS层终端标识。若第一终端装置的AS层标识与头终端装置的AS层终端标识相同，则处理器1203可确定第一终端装置为头终端装置。
若所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的V2X层标识之间的第二映射关系，则在确定第一终端装置为头终端装置时，处理器1203可根据头终端装置的上层终端标识以及所述第二映射关系，确定头终端装置的V2X层终端标识。根据第一终端装置的AS层终端标识可确定头终端装置的V2X层标识，若第一终端装置的V2X层标识与头终端装置的V2X层终端标识相同，则处理器1203可确定第一终端装置为头终端装置。
若所述第一信息包括所述第一通信装置的上层终端标识，则处理器1203可在确定所述第一通信装置的上层终端标识，与头终端装置的上层终端标识相同时，确定第一终端装置为头终端装置。
在实施中，收发器1201还可通过第二通信装置的上层还从所述第一通信装置的上层接收第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识，收发器1201还可通过第二通信装置的上层向所述第二通信装置的AS层指示所述头终端装置的上层终端标识。
以上所述第二信息包括下列信息中的一种或多种：所述第一通信装置的上层终端标识(可包括V2X层标识和/或V2X层以上层的标识)；或者，用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，所述终端装置组的group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。
示例性的，收发器1201还可通过第二通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或discovery过程中，从所述第一通信装置的上层接收所述第二信息。
以上所述第一信息可承载于RRC重配消息或MAC CE消息。
以上所述第二信息承可载于以下消息中的任意一种：用于请求建立SL的消息；或者，用于表示接受SL建立请求的消息，或者，用于请求保持SL连接的消息；或者，用于表示接受保持SL连接的消息；所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
示例性的，收发器1201还可通过所述第二通信装置的AS层从所述第二通信装置的AS层接收逻辑信道ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，收发器1201还可通过第二通信装置的AS层从所述第二通信装置的AS层接收AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
以上所述第一通信装置的AS层标识可以包括所述第一通信装置的物理层标识。在实施中，所述第一通信装置的物理层标识，可以包括以下标识中的至少一种：所述第一通信装置的小区无线网络临时标识C-RNTI；或者，所述第一通信装置的CS-RNTI；或者，所述第一通信装置的中断无线网络临时标识INT-RNTI；或者，所述第一通信装置的寻呼无线网络临时标识P-RNTI；或者，所述第一通信装置的系统信息无线网络临时标识SI-RNTI；或者，所述第一通信装置的半持久信道状态信息无线网络临时标识SP-CSI-RNTI；或者，所述第一通信装置的随机接入无线网络临时标识RA-RNTI；或者，所述第一通信装置的临时小区无线网络临时标识Temporary C-RNTI；或者，所述第一通信装置的非激活无线网络临时标识I-RNTI；或者，所述第一通信装置的层1源标识；或者，所述第一通信装置的层1目的标识。
在实施中，所述第一通信装置的V2X层标识，可以包括所述第一通信装置的层2标识。在实施中，所述第一通信装置的层2标识，可包括所述第一通信装置的层2源标识或所述第一通信装置的层2目的标识。
在另外的实现方式中，所述第一信息可包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
以上所述第一信息可承载于以下消息中的任意一种：AS层组播消息；或者，AS层广播消息；或者，PC5-RRC连接建立请求消息；或者，PC5-RRC连接建立消息；或者，PC5-RRC连接重配消息；或者，终端能力上报消息；或者，终端协助信息；或者，侧链路终端信息；或者，缓存状态报告；或者，用于请求建立SL的消息；或者，用于表示接受SL建立请求 的消息；或者，用于指示SL的配置信息的消息；所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
以上所述第一信息可包括下列信息中的一种或多种：用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，所述终端装置组的Group ID；或者，所述终端装置组中的成员终端的标识；或者，用于指示所述终端装置组中的成员终端的数量的信息。示例性的，所述第一信息包括所述SL的AS层组播groupcast配置信息。
若第二通信装置为网络设备103/路侧单元，收发器1201还可向第三通信装置发送第五信息，所述第五信息用于指示不允许所述第三通信装置向其他通信装置转发以及调度资源配置，所述第三通信装置以及所述其他通信装置为所述终端装置组中的终端装置。
另外，若通信装置1100为第一通信装置/终端101，收发器1201可用于向第二通信装置发送SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
若通信装置1100为第二通信装置/终端102，收发器1201可从第一通信装置接收SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述SL AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
应理解，上述通信装置1100和/或通信装置1200在执行上述方法实施例中由终端101/终端102所执行的步骤时，可以是终端或应用于终端的芯片或芯片系统；上述通信装置1100和/或通信装置1200在执行上述方法实施例中由网络设备103所执行的步骤时，可以是基站，或应用于基站的芯片或芯片系统。上述通信装置1100和/或通信装置1200还可以是路侧单元，或应用于路侧单元的芯片或芯片系统。
上述实施例，可以全部或部分地通过软件、硬件(如电路)、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
本发明实施例是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (40)

  1. 一种终端装置识别方法，其特征在于，包括：
    第一通信装置的接入AS层向第二通信装置的AS层发送第一信息；
    所述第一信息用于确定所述第一通信装置为终端装置组中的头终端装置。
  2. 如权利要求1所述的方法，其特征在于，所述第二通信装置属于所述终端装置组。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一信息包括：
    所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识的映射关系；或者
    所述第一通信装置的上层终端标识与所述第一通信装置的车联网V2X层标识的映射关系；或者
    所述第一通信装置的上层终端标识。
  4. 如权利要求1-3任一所述的方法，其特征在于，还包括：
    第一通信装置向第二通信装置发送第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识。
  5. 如权利要求4所述的方法，其特征在于，所述第二信息包括下列信息中的一种或多种：
    所述第一通信装置的上层终端标识；或者，
    用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，
    所述终端装置组的组标识group ID；或者，
    所述终端装置组中的成员终端的标识；或者，
    用于指示所述终端装置组中的成员终端的数量的信息。
  6. 如权利要求4或5所述的方法，其特征在于，所述第二信息承载于以下消息中的任意一种：
    用于请求建立侧链路SL的消息；或者，
    用于表示接受SL建立请求的消息，或者，
    用于请求保持SL连接的消息；或者，
    用于表示接受保持SL连接的消息；
    所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
  7. 如权利要求4-6任一所述的方法，其特征在于，第一通信装置向第二通信装置发送第二信息，包括：
    所述第一通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或发现discovery过程中，向所述第二通信装置的上层发送所述第二信息。
  8. 如权利要求4-6任一所述的方法，其特征在于，所述第一通信装置向第二通信装置发送所述第二信息，包括：
    所述第一通信装置的V2X层向所述第二通信装置的V2X层发送所述第二信息；
    所述第一通信装置向所述第二通信装置发送第二信息之前，还包括：
    所述第一通信装置的V2X层的上层，向所述第一通信装置的V2X层通知第三信息，所述第三信息用于指示所述头终端装置的上层终端标识，和/或用于指示所述第一通信装置 为所述头终端装置。
  9. 如权利要求1或2所述的方法，其特征在于，
    所述第一信息包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
  10. 如权利要求9所述的方法，其特征在于，所述第一信息承载于以下消息中的任意一种：
    AS层组播消息；或者，
    AS层广播消息；或者，
    PC5-RRC连接建立请求消息；或者，
    PC5-RRC连接建立消息；或者，
    PC5-RRC连接重配消息；或者，
    终端能力上报消息；或者，
    终端协助信息；或者，
    侧链路终端信息消息；或者，
    缓存状态报告BSR；或者，
    用于请求建立SL的消息；或者，
    用于表示接受SL建立请求的消息；或者，
    用于指示SL的配置信息的消息；
    所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
  11. 如权利要求9或10所述的方法，其特征在于，所述第一信息包括下列信息中的一种或多种：
    用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，
    所述终端装置组的group ID；或者，
    所述终端装置组中的成员终端的标识；或者，
    用于指示所述终端装置组中的成员终端的数量的信息。
  12. 如权利要求9-11中任一所述的方法，其特征在于，所述第一信息包括所述SL的AS层组播groupcast配置信息。
  13. 如权利要求1-12任一所述的方法，其特征在于，还包括：
    所述第一通信装置的AS层向所述第二通信装置的AS层发送逻辑信道标识ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，
    所述第一通信装置的AS层向所述第二通信装置的AS层发送AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
  14. 如权利要求1-13任一所述的方法，其特征在于，还包括：
    所述第一通信装置向所述第二通信装置发送第四信息，所述第四信息用于指示不允许所述第二通信装置向其他通信装置转发以及调度资源配置，所述其他通信装置为所述终端装置组中的终端装置。
  15. 一种终端装置识别方法，其特征在于，包括：
    第一通信装置向第二通信装置发送SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
  16. 一种终端装置识别方法，其特征在于，包括：
    第二通信装置的AS层从第一通信装置的AS层接收第一信息；
    所述第二通信装置根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置。
  17. 如权利要求16所述的方法，其特征在于，所述第二通信装置属于所述终端装置组。
  18. 如权利要求16或17所述的方法，其特征在于，所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的AS层标识之间的第一映射关系；
    所述第二通信装置的AS层根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置，包括：
    所述第二通信装置的AS层根据头终端装置的上层终端标识以及所述第一映射关系，确定头终端装置的AS层终端标识。
  19. 如权利要求16或17所述的方法，其特征在于，所述第一信息包括所述第一通信装置的上层终端标识与所述第一通信装置的V2X层标识之间的第二映射关系；
    所述第二通信装置的AS层根据所述第一信息，确定所述第一通信装置为终端装置组中的头终端装置，包括：
    所述第二通信装置的AS层根据头终端装置的上层终端标识以及所述第二映射关系，确定头终端装置的V2X层终端标识。
  20. 如权利要求16或17所述的方法，其特征在于，所述第一信息包括所述第一通信装置的上层终端标识；
    所述第二通信装置的AS层根据所述第一信息，确定所述第一通信装置为所述终端装置组中的头终端装置，包括：
    所述第二通信装置的AS层确定所述第一通信装置的上层终端标识，与头终端装置的上层终端标识相同。
  21. 如权利要求16-20任一所述的方法，其特征在于，还包括：
    所述第二通信装置的上层，从所述第一通信装置的上层接收第二信息，所述第二信息用于指示所述终端装置组中的头终端装置的上层终端标识；
    所述第二通信装置的上层向所述第二通信装置的AS层指示所述头终端装置的上层终端标识。
  22. 如权利要求21所述的方法，其特征在于，所述第二信息包括下列信息中的一种或多种：
    所述第一通信装置的上层终端标识；或者，
    用于指示所述上层终端标识为所述终端装置组的头终端装置的标识的信息；或者，
    所述终端装置组的group ID；或者，
    所述终端装置组中的成员终端的标识；或者，
    用于指示所述终端装置组中的成员终端的数量的信息。
  23. 如权利要求21或22所述的方法，其特征在于，所述第二信息承载于以下消息中的任意一种：
    用于请求建立SL的消息；或者，
    用于表示接受SL建立请求的消息，或者，
    用于请求保持SL连接的消息；或者，
    用于表示接受保持SL连接的消息；
    所述SL为所述第一通信装置与所述第二通信装置之间的上层链路。
  24. 如权利要求21或22所述的方法，其特征在于，所述第二通信装置，从所述第一通信装置接收所述第一通信装置的第二信息，包括：
    所述第二通信装置的上层在所述第一通信装置与所述第二通信装置的之间的鉴权过程、组创建过程、组成员加入过程或discovery过程中，从所述第一通信装置的上层接收所述第二信息。
  25. 如权利要求16或17所述的方法，其特征在于，
    所述第一信息包括用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息。
  26. 如权利要求25所述的方法，其特征在于，所述第一信息承载于以下消息中的任意一种：
    AS层组播消息；或者，
    AS层广播消息；或者，
    PC5-RRC连接建立请求消息；或者，
    PC5-RRC连接建立消息；或者，
    PC5-RRC连接重配消息；或者，
    终端能力上报消息；或者，
    终端协助信息；或者，
    侧链路终端信息消息；或者，
    缓存状态报告BSR；或者，
    用于请求建立SL的消息；或者，
    用于表示接受SL建立请求的消息；或者，
    用于指示SL的配置信息的消息；
    所述SL为所述第一通信装置与所述第二通信装置之间的AS层链路。
  27. 如权利要求25或26所述的方法，其特征在于，所述第一信息包括下列信息中的一种或多种：
    用于指示所述第一通信装置为所述终端装置组中的头终端装置的信息；或者，
    所述终端装置组的group ID；或者，
    所述终端装置组中的成员终端的标识；或者，
    用于指示所述终端装置组中的成员终端的数量的信息。
  28. 如权利要求25-27中任一所述的方法，其特征在于，所述第一信息包括所述SL的AS层组播groupcast配置信息。
  29. 如权利要求16-28任一所述的方法，其特征在于，还包括：
    所述第二通信装置的AS层从所述第二通信装置的AS层接收逻辑信道ID，所述逻辑信道ID用于指示所述消息是否承载AS层消息；或者，
    所述第二通信装置的AS层从所述第二通信装置的AS层接收AS层消息指示，所述AS层消息指示用于指示所述消息是否承载AS层消息。
  30. 如权利要求16-29任一所述的方法，其特征在于，所述第二通信装置为网络设备， 还包括：
    所述第二通信装置向第三终端装置发送第五信息，所述第五信息用于指示不允许所述第三通信装置向其他通信装置转发以及调度资源配置，所述第三通信装置以及所述其他通信装置为所述终端装置组中的终端装置。
  31. 一种终端装置识别方法，其特征在于，包括：
    第二通信装置从第一通信装置接收SL AS层组播groupcast配置信息，所述第一通信装置与所述第二通信装置属于同一终端装置组，所述SL AS层组播groupcast配置信息用于所述第二通信装置配置SL AS层组播参数。
  32. 一种通信装置，其特征在于，包括收发器、存储器以及处理器：
    所述收发器，用于所述装置进行通信；
    所述存储器，用于存储程序指令；
    所述处理器，用于运行所述程序指令，使得所述通信装置执行如权利要求1至14任一项中所述的方法。
  33. 一种通信装置，其特征在于，包括收发器、存储器以及处理器：
    所述收发器，用于所述装置进行通信；
    所述存储器，用于存储程序指令；
    所述处理器，用于运行所述程序指令，使得所述通信装置执行如权利要求15所述的方法。
  34. 一种通信装置，其特征在于，包括收发器、存储器以及处理器：
    所述收发器，用于所述装置进行通信；
    所述存储器，用于存储程序指令；
    所述处理器，用于运行所述程序指令，使得所述通信装置执行如权利要求16至30任一项中所述的方法。
  35. 一种通信装置，其特征在于，包括收发器、存储器以及处理器：
    所述收发器，用于所述装置进行通信；
    所述存储器，用于存储程序指令；
    所述处理器，用于运行所述程序指令，使得所述通信装置执行如权利要求31所述的方法。
  36. 一种通信系统，其特征在于，包括如权利要求32所示的通信装置以及如权利要求33所示的通信装置。
  37. 一种通信系统，其特征在于，包括如权利要求34所示的通信装置以及如权利要求35所示的通信装置。
  38. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在计算机上被调用执行时，使得计算机执行权利要求1至31中任一项所述的方法。
  39. 一种包含指令的计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得计算机执行权利要求1至31中任一项所述的方法。
  40. 一种芯片，其特征在于，包括处理器，所述处理器，用于从存储器中调用并运行计算机程序，以执行如权利要求1至31中任一所述的方法。
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