WO2023226664A1 - 一种信息传输方法及通信装置 - Google Patents

一种信息传输方法及通信装置 Download PDF

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Publication number
WO2023226664A1
WO2023226664A1 PCT/CN2023/090335 CN2023090335W WO2023226664A1 WO 2023226664 A1 WO2023226664 A1 WO 2023226664A1 CN 2023090335 W CN2023090335 W CN 2023090335W WO 2023226664 A1 WO2023226664 A1 WO 2023226664A1
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Prior art keywords
information
group
command
access network
network device
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PCT/CN2023/090335
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English (en)
French (fr)
Inventor
朱世超
孙飞
曾清海
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华为技术有限公司
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Publication of WO2023226664A1 publication Critical patent/WO2023226664A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of communication technology, and in particular, to an information transmission method and communication device.
  • the mobility management of connected user equipment is controlled by the access network device, that is, the access network device instructs the UE to switch to which location by sending a handover message.
  • the access network device instructs the UE to switch to which location by sending a handover message.
  • cell and how to switch can be shown in Figure 1. in:
  • the source base station sends a radio resource control (RRC) reconfiguration message to the connected UE.
  • RRC radio resource control
  • the RRC reconfiguration message may include parameters such as measurement objects, report configurations, and measurement identifiers.
  • the UE After measuring a series of cells according to the RRC reconfiguration message, the UE forms a measurement report and reports it to the currently connected source base station.
  • the source base station After receiving the measurement report, the source base station determines whether the UE needs to perform cell switching.
  • the source base station will send a handover request message to the target base station.
  • the target base station After receiving the handover request, the target base station determines whether to allow the UE to access based on its own connection number and other conditions.
  • the target base station sends a handover confirmation message to the source base station.
  • the handover confirmation message includes relevant information about the target cell and relevant configuration parameters required for the UE to access the target cell.
  • the source base station After receiving the handover confirmation message sent by the target base station, the source base station sends an RRC reconfiguration message (ie, handover command) to the UE.
  • the content contained in the RRC reconfiguration message comes from the handover confirmation message in step 106, which is equivalent to being transparent to the source base station.
  • the UE After receiving the RRC reconfiguration message, the UE initiates random access to the target base station according to the RRC reconfiguration message.
  • the UE will disconnect from the source base station. Before successfully accessing the target base station, the UE will be temporarily interrupted in sending and receiving data.
  • the UE sends an RRC reconfiguration complete message to the target base station.
  • the target base station After receiving the RRC reconfiguration complete message, the target base station sends a context release message to the source base station, so that the source base station releases the context of the UE.
  • the UE uses beam 1 corresponding to the SSB to send message 1 (msg1) to the target base station.
  • the msg1 includes the preamble.
  • the UE may select an SSB whose signal quality is higher than the threshold value, and use beam 1 to send msg1 to the target base station, and the beam 1 is the beam corresponding to the selected SSB.
  • the target base station After receiving msg1, the target base station uses beam 1 to send message 2 (msg2) to the UE.
  • the msg2 contains the timing advance (TA) information and initial uplink resource allocation information (UL grant) used by the UE for uplink synchronization.
  • TA timing advance
  • UL grant initial uplink resource allocation information
  • the target base station Before sending msg2, the target base station may also send PDCCH for scheduling msg2.
  • the PDCCH is randomly connected through Scrambling with random access radio network temporary identifier (RA-RNTI).
  • RA-RNTI random access radio network temporary identifier
  • the target base station After receiving msg1, the target base station can determine the RA-RNTI based on the time-frequency resources of the preamble.
  • the UE also determines the RA-RNTI based on the time-frequency resources of the preamble. And descramble the PDCCH through RA-RNTI to obtain the scheduling information of msg2. The UE uses beam 1 to receive msg2 based on the scheduling information of msg2.
  • group handover Group handover, Group HO
  • the source base station can regard multiple UEs as a "Group” and make cell switching decisions in groups.
  • cell switching When cell switching is required, it requests the target base station to perform cell switching in groups.
  • the target base station After the source base station sends a group switching request to the target base station, the target base station prepares resources for all UEs in the group.
  • the group head UE can send msg1, and the non-group head UE does not send msg1.
  • the non-group leader UE can directly receive msg2, which contains the TA information of the group leader UE and the uplink resource allocation information of all UEs.
  • the non-group leader UE performs uplink synchronization based on the TA information of the group leader UE. How the non-group leader UE accurately receives the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE is an issue that needs to be solved urgently.
  • Embodiments of the present application provide an information transmission method and a communication device, which facilitate non-group leader UEs to accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UEs.
  • this application provides an information transmission method.
  • this method can be executed by the non-group leader UE, or by components of the non-group leader UE (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the functions of the non-group leader UE.
  • Logic module or software implementation. The method includes:
  • the first information is used to determine the first random access wireless network temporary identifier (RA-RNTI) and the first beam, the first RA-RNTI is used to scramble the first Physical Downlink Control Channel (PDCCH), the first PDCCH is used to carry the scheduling information of message (msg) 2, the first beam is used to transmit msg1 and msg2, the msg1 includes the preamble, and the msg2 includes the group header within the UE group Time advance (TA) information of the UE and uplink resource allocation information of all UEs in the UE group; determine the first RA-RNTI and the first beam based on the first information; receive the first RA-RNTI broadcast by the target access network device The scrambled first PDCCH; descrambling the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2; based on the scheduling information of msg2, receiving msg2 broadcast by the target
  • RA-RNTI random access wireless network
  • the non-group head UE can obtain the first RA-RNTI and the first beam transmitting msg2, so that it can parse the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, and then Based on the scheduling information of msg2 and the first beam, receive msg2.
  • msg2 includes TA information of the group leader UE and uplink resource allocation information of non-group leader UEs. Therefore, based on the method described in the first aspect, it is beneficial for the non-group leader UE to accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE.
  • a specific implementation manner of receiving the first information sent by the source access network device is: receiving the first information sent by the source access network device through a radio resource control (RRC) message. Sending the first information through the RRC message requires little modification to the existing protocol.
  • RRC radio resource control
  • a specific implementation manner of receiving the first information sent by the source access network device is: receiving the second PDCCH broadcast by the source access network device, and the second PDCCH is scrambled by the G-RNTI of the UE group. , the second PDCCH is used to carry the scheduling information of the first information; the second PDCCH is descrambled based on the G-RNTI of the UE group to obtain the scheduling information of the first information; scheduling based on the first information The information receives the first information broadcast by the access network device. Sending the first information in a broadcast manner can save signaling overhead.
  • third information may also be sent to the source access network device, where the third information indicates that the non-group leader UE has received the first information.
  • the source access network device can notify the target access network device that it can send the first information when all non-group leader UEs have received the first information. PDCCH and msg2. This prevents the target access network device from sending the first PDCCH and msg2 prematurely, causing the non-group leader UE to be unable to successfully receive the first PDCCH and msg2.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam. Based on this possible implementation, it is beneficial for the non-group head UE to accurately determine the first RA-RNTI and the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • a second command sent by the source access network device may also be received; wherein the second command carries the identifier of the group head UE; or, The second command carries information indicating that the UE that received the second command is a non-group leader UE; or, the second command has a different name from the first command sent by the source access network device to the group leader UE, and the first command indicates The information indicating that the UE receiving the first command is the group leader UE, and the second command indicating that the UE receiving the second command is the non-group leader UE.
  • the second command can be used to notify which UEs are non-group leader UEs, so that the non-group leader UEs can perform corresponding operations.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the non-group leader UE can obtain the G-RNTI, so that it can subsequently parse the second PDCCH based on the G-RNTI to obtain the scheduling information of the first information.
  • the first command and the second command indicate cell switching. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • this application provides an information transmission method.
  • the method can be executed by the source access network device, or by components of the source access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the source access.
  • Logic module or software implementation of network device functions. The method includes:
  • Receive first information sent by the target access network device the first information is used to determine a first random access wireless network temporary identifier (RA-RNTI) and the first beam, and the first RA-RNTI is used to scramble the first Physical Downlink Control Channel (PDCCH), the first PDCCH is used to carry the scheduling information of message (msg) 2, the first beam is used to transmit msg1 and msg2, msg1 includes the preamble, and the msg2 includes the group head UE in the UE group Time advance (TA) information and uplink resource allocation information of all UEs in the UE group; sending the first information to non-group head UEs in the UE group.
  • RA-RNTI random access wireless network temporary identifier
  • PDCCH Physical Downlink Control Channel
  • msg2 the scheduling information of message
  • msg1 includes the preamble
  • msg2 includes the group head UE in the UE group Time advance (TA) information and uplink resource allocation information of all
  • a specific implementation manner of sending the first information to the non-head UE in the UE group is: sending the first information to the non-head UE in the UE group through a radio resource control (RRC) message.
  • RRC radio resource control
  • a specific implementation method of sending the first information to non-head UEs in the UE group is: broadcasting a second PDCCH, where the second PDCCH consists of the Group Mobile User Temporary Identity (G-RNTI) of the UE group. Scrambling, the second PDCCH is used to carry scheduling information of the first information; broadcasting the first information.
  • G-RNTI Group Mobile User Temporary Identity
  • a timer can also be started; when the timer times out, the second information is sent to the target access network device.
  • the second information Indicates sending the first PDCCH and msg2. Based on this possible implementation, it can be avoided that the target access network device sends the first PDCCH and msg2 prematurely, causing the non-group leader UE to be unable to successfully receive the first PDCCH and msg2.
  • the second information may also be sent to the target access network device.
  • the second information indicates that the first PDCCH and msg2 are sent
  • the third information indicates that the non-group leader UE has received the first information.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam.
  • the first RA-RNTI the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • the following steps may also be performed: sending a group switching request to the target access network device, where the group switching request is used to request cell operation for the UE group.
  • the group handover request carries the identity of the group head UE; receives the handover confirmation information sent by the target access network device; sends the first command to the group head UE; sends the second command to the non-group head UE; wherein, the first command and the second command both carry the identity of the group head UE; alternatively, the first command carries information used to indicate that the UE that received the first command is the group head UE, and the second command carries information used to indicate that the UE that received the second command is the group head UE.
  • the commanded UE is a non-group leader UE.
  • the signaling names of the first command and the second command are different, the first command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the group leader UE.
  • Information that the commanded UE is a non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • this application provides an information transmission method.
  • the method can be executed by the target access network device, or by a component of the target access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the target access.
  • Logic module or software implementation of network device functions. The method includes:
  • msg1 includes a preamble; send the first information to the source access network device, the first information is used to determine the first random Access the radio network temporary identity (RA-RNTI) and the first beam.
  • the first RA-RNTI is used to scramble the first physical downlink control channel (PDCCH).
  • the first PDCCH is used to carry the scheduling information of msg2.
  • msg2 includes the group Time advance (TA) information of the head UE and uplink resource allocation information of all UEs in the UE group; broadcast the first PDCCH scrambled by the first RA-RNTI; broadcast msg2 through the first beam.
  • TA Time advance
  • second information sent by the source access network device may also be received, where the second information indicates sending the first PDCCH and msg2.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam.
  • the first RA-RNTI the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • a group switching request sent by the source access network device can also be received before using the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group.
  • the request is used to request cell switching for a UE group.
  • the group switching request carries the identifier of the group head UE; and sends switching confirmation information to the source access network device.
  • this application provides an information transmission method.
  • this method can be executed by the non-group leader UE, or by components of the non-group leader UE (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the functions of the non-group leader UE.
  • Logic module or software implementation. The method includes:
  • the PDCCH is descrambled to obtain the scheduling information of the first information; based on the scheduling information of the first information, the first information broadcast by the target access network device is received.
  • the first information includes the time advance of the head UE in the UE group. (TA) information and uplink resource allocation information of all non-head UEs in the UE group.
  • the target access network device may broadcast the TA information of the head UE in the UE group and the uplink resource allocation information of all non-head UEs in the UE group based on the G-RNTI. Therefore, the non-group leader UE can receive the TA information of the group leader UE and the uplink resource allocation information of all non-group leader UEs in the UE group based on the G-RNTI.
  • a second command sent by the source access network device may also be received, where the second command carries the G-RNTI of the UE group; wherein the second command also carries the identifier of the group head UE; or, The second command also carries information indicating that the UE that received the second command is a non-group leader UE; or, the second command is different from the signaling name of the first command sent by the source access network device to the group leader UE, The first command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the second command can be used to notify which UEs are non-group leader UEs, so that the non-group leader UEs can perform corresponding operations.
  • the G-RNTI of the UE group can be indicated through the second command, and then the first PDCCH can be descrambled based on the G-RNTI to obtain the scheduling information of the first information.
  • the first command and the second command indicate cell switching. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • this application provides an information transmission method.
  • the method can be executed by the target access network device, or by a component of the target access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the target access.
  • Logic module or software implementation of network device functions. The method includes:
  • msg1 includes the preamble; broadcast msg2 through the first beam; broadcast the first PDCCH, the first PDCCH is composed of the group of UEs Mobile user temporary identity (G-RNTI) scrambling, the first PDCCH is used to carry scheduling information of the first information; broadcast the first information, the first information includes the time advance (TA) information of the group head UE and the UE group Uplink resource allocation information of all non-group head UEs within the group.
  • G-RNTI Mobile user temporary identity
  • a group switching request sent by the source access network device can also be received before using the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group.
  • the request is used to request cell switching for a UE group.
  • the group switching request carries the identity of the group head UE and the G-RNTI of the UE group; and sends switching confirmation information to the source access network device.
  • this application provides an information transmission method.
  • the method can be executed by the source access network device, or by components of the source access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the source access.
  • Logic module or software implementation of network device functions. The method includes:
  • the group switching request is used to request cell switching for the UE group.
  • the group switching request carries the identity of the group head UE in the UE group and the G-RNTI of the UE group; receive the target access network device.
  • the handover confirmation information sent by the network access device the first command is sent to the group leader UE; the second command is sent to the non-group leader UE, and the second command carries the G-RNTI of the UE group; wherein the first command and the second command also include Carrying the identity of the group leader UE; alternatively, the first command also carries information used to indicate that the UE that received the first command is the group leader UE, and the second command also carries information used to indicate that the UE that received the second command is the non-group leader.
  • the first command indicates that the UE that received the first command is the information of the group head UE
  • the second command indicates that the UE that received the second command is the information of the group head UE.
  • the first command and the second command indicate cell switching.
  • this application provides an information transmission method.
  • this method can be executed by the non-group leader UE, or by components of the non-group leader UE (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the functions of the non-group leader UE.
  • Logic module or software implementation. The method includes:
  • the non-group leader UE can accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE in the UE group from the source access network device.
  • the specific implementation manner of receiving the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE in the UE group sent by the source access network device is: the source access network device sends it via wireless
  • the resource control (RRC) message sends the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group.
  • the specific implementation method of receiving the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE in the UE group sent by the source access network device is: receiving the TA information broadcast by the source access network device.
  • the first PDCCH is scrambled by the Group Mobile Subscriber Temporary Identity (G-RNTI) of the UE group.
  • the first PDCCH is used to carry scheduling information of the first information.
  • the first information includes the group header in the UE group.
  • the time advance (TA) information of the UE and the uplink resource allocation information of all non-group head UEs in the UE group use G-RNTI to descramble the first PDCCH to obtain the scheduling information of the first information; based on the first information Scheduling information, receiving the first information broadcast by the source access network device.
  • TA time advance
  • a second command sent by the source access network device may also be received; wherein the second command carries the identity of the group head UE; or the second command carries a message indicating receipt of the second command.
  • Information about the UE, the second command indicates that the UE that received the second command is a non-group leader UE.
  • the second command can be used to notify which UEs are non-group leader UEs, so that the non-group leader UEs can perform corresponding operations.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the G-RNTI of the UE group can be indicated through the second command, and then the first PDCCH can be descrambled based on the G-RNTI to obtain the scheduling information of the first information.
  • the first command and the second command indicate cell switching.
  • the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • this application provides an information transmission method.
  • the method can be executed by the source access network device, or by components of the source access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the source access.
  • Logic module or software implementation of network device functions. The method includes:
  • Receive the first information sent by the target access network device the first information including the time advance (TA) information of the group head UE in the user equipment (UE) group and the uplink resource allocation of all non-group head UEs in the UE group Information: Send the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE.
  • TA time advance
  • UE user equipment
  • the specific implementation method of sending the TA information of the group head UE and the uplink resource allocation information of the non-group head UE to the non-group head UE is: sending to the non-group head UE through a radio resource control (RRC) message.
  • RRC radio resource control
  • the specific implementation method of sending the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE is: broadcasting the first PDCCH, which is composed of the group of the UE group.
  • Mobile subscriber temporary identity (G-RNTI) scrambling the first PDCCH is used to carry scheduling information of the first information; broadcast the first information.
  • G-RNTI Mobile subscriber temporary identity
  • the method further includes: sending a group switching request to the target access network device.
  • the group switching request is used to request cell switching for the UE group, and the group switching request carries the group header in the UE group.
  • the identification of the UE receiving the handover confirmation information sent by the target access network device; sending the first command to the group head UE; sending the second command to the non-group head UE; wherein the first command and the second command carry the identity of the group head UE.
  • the first command carries an indication of receipt of the first
  • the UE receiving the command is the group leader UE
  • the second command carries information indicating that the UE receiving the second command is a non-group leader UE; or, the signaling names of the first command and the second command are different, and the first command carries information indicating that the UE receiving the second command is a non-group leader UE.
  • the command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • this application provides an information transmission method.
  • the method can be executed by the target access network device, or by a component of the target access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the target access.
  • Logic module or software implementation of network device functions. The method includes:
  • One piece of information includes time advance (TA) information of the group leader UE and uplink resource allocation information of all non-group leader UEs in the UE group.
  • TA time advance
  • a group switching request sent by the source access network device can also be received before using the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group.
  • the request is used to request cell switching for a UE group.
  • the group switching request carries the identifier of the group head UE; and sends switching confirmation information to the source access network device.
  • this application provides an information transmission method.
  • the method can be executed by the source access network device, or by components of the source access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the source access.
  • Logic module or software implementation of network device functions are possible.
  • the method includes: sending a first command to the group head UE in the UE group; sending a second command to the group head UE in the UE group; wherein the first command and the second command carry the identity of the group head UE; or, One command carries information used to indicate that the UE that received the first command is the group leader UE, and the second command carries information used to indicate that the UE that received the second command is a non-group leader UE; or, the first command and the second command
  • the signaling names of the commands are different.
  • the first command indicates that the UE that received the first command is the information of the group leader UE
  • the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the first command can be used to accurately notify which UE is the group head UE, so that the group head UE can perform the corresponding operation
  • the second command can be used to accurately notify which UE is the non-group head UE, so that The non-group head UE can perform corresponding operations.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the G-RNTI of the UE group can be indicated through the second command, so that the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group can be received subsequently based on the G-RNTI.
  • the first command and the second command indicate cell switching. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • this application provides an information transmission method.
  • this method can be executed by the non-group leader UE, or by components of the non-group leader UE (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the functions of the non-group leader UE.
  • Logic module or software implementation. The method includes:
  • the second command carries the identifier of the group leader UE; or, the second command carries information indicating that the UE that received the second command is a non-group leader UE; or, the second command is sent to the source access network device together with the source access network device.
  • the signaling names of the first command of the group leader UE are different.
  • the first command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the non-group leader UE. .
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • this application provides an information transmission method.
  • the method can be executed by the group head UE, or by components of the group head UE (such as a processor, a chip, or a chip system, etc.), or by a logic module that can realize all or part of the functions of the group head UE. or software implementation.
  • the method includes:
  • the first command carries the identification of the group head UE; or, the first command carries information indicating that the UE receiving the first command is the group head UE; or the first command and the source access network device are sent to the non- The signaling names of the second command of the group leader UE are different.
  • the first command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the first command and the second command indicate cell switching.
  • this application provides a method for determining a UE group.
  • the method can be executed by the source access network device, or by components of the source access network device (such as a processor, a chip, or a chip system, etc.), or by a device that can realize all or part of the source access.
  • Logic module or software implementation of network device functions. The method includes:
  • Receive measurement reports from multiple UEs determine multiple second UEs from the multiple UEs based on the measurement reports of multiple user equipments (UEs), and the measurement reports corresponding to the second UEs indicate that the neighboring cell signal quality is higher than the serving cell signal quality.
  • the first threshold, or the signal quality of the serving cell is lower than the second threshold and the signal quality of the neighboring cell is higher than the third threshold; it is determined based on the locations of the multiple second UEs whether to divide the multiple second UEs into a UE group.
  • the UE groups that need to perform cell switching can be accurately divided.
  • a specific implementation method for determining whether to divide multiple second UEs into a UE group based on the locations of multiple second UEs is: if the degree of dispersion of the locations of multiple second UEs is less than or equal to the If the four thresholds are exceeded, the plurality of second UEs will be divided into one UE group; if the dispersion degree of the locations of the plurality of second UEs is greater than the fourth threshold, the plurality of second UEs will not be divided into one UE group.
  • the degree of discreteness of UEs is large, it is considered that they are far apart and it is not suitable to use group switching technology. Therefore, based on this possible implementation, the UE groups that need to perform cell handover can be reasonably divided.
  • the group head UE is closest to the center of the UE group.
  • the method further includes: determining the location of the second UE based on the optimal beam and time advance (TA) information corresponding to the second UE. Based on this possible implementation, the location of the second UE can be accurately determined.
  • TA time advance
  • the present application provides a communication device.
  • the communication device may be a non-group leader UE or source access network equipment or target access network equipment. It may also be a non-group leader UE or source access network equipment or target access network equipment.
  • the communication device may also be a chip system.
  • the communication device can perform the method described in any one of the first to thirteenth aspects.
  • the functions of the communication device can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the unit or module may be software and/or hardware.
  • the operations and beneficial effects performed by the communication device can be referred to the method and beneficial effects described in any one of the above-mentioned first to thirteenth aspects.
  • the present application provides a communication device.
  • the communication device includes a processor.
  • the processor calls the computer program in the memory, the method described in any one of the first to thirteenth aspects is executed. .
  • the present application provides a communication device.
  • the communication device includes a processor and a memory.
  • the processor and the memory are coupled; the processor is used to implement the method described in any one of the first to thirteenth aspects.
  • the present application provides a communication device.
  • the communication device includes a processor, a memory and a transceiver.
  • the processor and the memory are coupled; the transceiver is used to send and receive data, and the processor is used to implement the first to thirteenth aspects. any of methods described in this aspect.
  • the present application provides a communication device.
  • the communication device includes a processor and an interface.
  • the interface is used to receive or output signals.
  • the processor is used to implement the first to thirteenth aspects through logic circuits or execution of code instructions. The method described in any one of the aspects.
  • the present application provides a computer-readable storage medium.
  • Computer programs or instructions are stored in the storage medium.
  • any of the first to thirteenth aspects are implemented. The method described in one aspect.
  • the present application provides a computer program product including instructions, which when a computer reads and executes the computer program product, causes the computer to execute the method described in any one of the first to thirteenth aspects.
  • Figure 1 is a schematic flow chart of an existing cell switching method provided by this application.
  • Figure 2 is a schematic flow chart of an existing random access method provided by this application.
  • FIG. 3 is a schematic diagram of a system architecture provided by this application.
  • Figure 4 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 5 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 6 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 7 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 8 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 9 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 10 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 11 is a schematic flow chart of an information transmission method provided by this application.
  • Figure 12 is a schematic flow chart of a UE group determination method provided by this application.
  • Figure 13 is a schematic structural diagram of a communication device provided by this application.
  • Figure 14 is a schematic structural diagram of a communication device provided by this application.
  • Figure 15 is a schematic structural diagram of a chip provided by this application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • At least one (item) means one or more
  • plural means two or more
  • at least two (items) means two or three and three
  • “and/or” is used to describe the relationship between associated objects, indicating There can be three relationships.
  • a and/or B can mean: only A exists, only B exists, and A and B exist simultaneously.
  • a and B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an "or” relationship.
  • At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • At least one of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c” ”, where a, b, c can be single or multiple.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • Figure 3 is a schematic diagram of a system architecture provided by an embodiment of the present application.
  • the system architecture includes a UE group, source access network equipment, and target access network equipment.
  • the UE group, source access network equipment and target access network equipment involved in the system architecture in Figure 3 are introduced below respectively.
  • the source access network device is an access network device in the serving cell of the UE group.
  • the interface between the access network device and the terminal device may be a Uu interface (or air interface).
  • Uu interface or air interface
  • the names of these interfaces may remain unchanged or may be replaced by other names, which is not limited by this application.
  • the access network device is the node or device that connects the terminal device to the wireless network.
  • Access network equipment can be any type of equipment with wireless transceiver functions, including but not limited to: evolutionary base stations in LTE (NodeB or eNB or e-NodeB, evolutionary Node B), base stations in NR (gNodeB or gNB) Or Transmission Reception Point (TRP), 3GPP subsequent evolution base station, access node in WiFi system, wireless relay node, wireless backhaul node, etc.
  • the base station can be: macro base station, micro base station, pico base station, small station, relay station, or balloon station, etc. Multiple base stations may support networks with the same technology mentioned above, or may support networks with different technologies mentioned above.
  • a base station may contain one or more co-located or non-co-located TRPs.
  • the access network equipment can also be a wireless controller, a centralized unit (Central Unit, CU), and/or a distributed unit (Distributed Unit, DU) in the Cloud Radio Access Network (CRAN) scenario.
  • Access network equipment can also be servers, wearable devices, or vehicle-mounted equipment.
  • the following description takes the access network equipment as a base station as an example.
  • the multiple access network devices may be base stations of the same type or different types of base stations.
  • the base station can communicate with the terminal device or communicate with the terminal device through the relay station.
  • the terminal device can communicate with multiple base stations of different technologies. For example, the terminal device can communicate with a base station that supports the LTE network or a base station that supports the 5G network. It can also support base stations with the LTE network and the base station of the 5G network. Dual connection.
  • the target access network equipment is the access network device in the cell that the UE group wants to access when the signal of the neighboring cell is higher than the signal of the serving cell, or the signal of the serving cell is lower than the second threshold and the signal of the neighboring cell is higher than the third threshold.
  • Network access equipment For a description of the access network equipment, see the description of the access network equipment under the source access network equipment and will not be described again here.
  • the UE group includes multiple UEs.
  • Cell switching can be performed on a UE group basis, that is, the source access network device can switch multiple
  • the UE is regarded as a "Group" and makes cell switching decisions in groups.
  • the UE requests cell switching from the target access network device in groups.
  • the target access network device prepares resources for all UEs in the UE group.
  • one UE in the UE group is the group head UE, and the other UEs are non-group head UEs.
  • the group head UE After the source access network device sends the handover command for cell handover to all UEs in the UE group, the group head UE needs to send msg1 (message 1) to the target access network device and receive msg2 sent by the target access network device. , the msg2 contains the TA information of the group head UE and the uplink resource allocation information of all UEs.
  • the non-group head UE does not need to send msg1 and can directly receive the msg2. In other words, the group leader UE needs to perform random access, and the non-group leader UE does not need to perform random access.
  • UE includes equipment that provides voice and/or data connectivity to users.
  • UE is a device with wireless transceiver functions. It can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water. (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons, satellites, etc.).
  • the terminal may be a mobile phone, a tablet, a computer with wireless transceiver functions, a virtual reality (VR) UE, an augmented reality (AR) UE, a wireless terminal in industrial control, or a vehicle-mounted UE, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, smart cities ( Wireless terminals in smart city, wireless terminals in smart home, wearable UE, etc.
  • the embodiments of this application do not limit application scenarios.
  • UE sometimes can also be called terminal, access UE, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote UE, mobile device, terminal device, wireless communication device, UE agent or UE devices, etc.
  • Terminals can also be fixed or mobile.
  • UE is used to refer to UE later in this application.
  • embodiments of the present application provide an information transmission method and a communication device.
  • the information transmission method and communication device provided by the embodiments of the present application are further introduced below:
  • the non-group head UE can obtain the first RA-RNTI and the first beam that transmits msg2, so that it can parse the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, and then based on msg2 Scheduling information and the first beam, receive msg2.
  • msg2 includes TA information of the group leader UE and uplink resource allocation information of non-group leader UEs.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example.
  • the group leader UE, non-group leader UE, source access network equipment, or target access network equipment in Figure 4 may also support the group leader UE, non-group leader UE, source access network equipment, or target access network.
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the msg1 includes the preamble. msg1 is used for random access.
  • the UE may select an SSB whose signal quality is higher than the threshold, and the first beam may be the beam corresponding to the selected SSB.
  • the beam corresponding to the SSB refers to the beam that transmits the SSB. There is a corresponding relationship between the identifier of the SSB and the beam that transmits the SSB.
  • the target access network device sends the first information to the source access network device.
  • the source access network device may receive the first information.
  • the first information is used to determine a first random access radio network temporary identifier (random access radio network temporary identifier (RA-RNTI) and the first beam.
  • the first RA-RNTI is used to scramble the first physical downlink control channel (PDCCH).
  • the first PDCCH is used to carry the scheduling information of msg2.
  • the msg2 includes the group head UE. Time advance (TA) information and uplink resource allocation information of all UEs in the UE group.
  • the scheduling information of msg2 may be the time-frequency resource information of msg2.
  • the non-group leader UE receiving msg2 needs to know the first RA-RNTI and the first beam in order to parse the first PDCCH based on the first RA-RNTI, obtain the scheduling information of msg2, and use the first beam based on the scheduling information of msg2. Receive msg2.
  • the target access network device does not immediately send the first PDCCH and msg2 after receiving msg1. Instead, the first information is sent to the source access network device first, so that the source access network device can send the first information to the non-group leader UE. In this way, the non-group head UE can determine the first RA-RNTI and the first beam based on the first information. After the target access network device sends the first information to the source access network device, it sends the first PDCCH and msg2.
  • the non-group leader UE can, after determining the first RA-RNTI and the first beam, parse the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, and then receive msg2 based on the scheduling information of msg2 and the first beam.
  • the source access network device sends the first information to the non-group leader UE.
  • the non-group leader UE may receive the first information.
  • the source access network device may send the first information to the non-group leader UE in one of the following two ways.
  • Method 1 The source access network device sends the first information to the non-head UE in the UE group through a radio resource control (RRC) message.
  • RRC radio resource control
  • the non-group head UE in the UE group receives the first information sent by the source access network device through the RRC message.
  • Method 2 The source access network device broadcasts the second PDCCH.
  • the second PDCCH is scrambled by the group radio network temporary identifier (G-RNTI) of the UE group.
  • the second PDCCH is used to carry the first information. Scheduling information; the source access network equipment broadcasts the first information.
  • the non-head UE in the UE group may receive the second PDCCH broadcast by the source access network device.
  • the second PDCCH is scrambled by the G-RNTI of the UE group.
  • the second PDCCH is used to carry the scheduling of the first information.
  • Information the non-group leader UE may receive the first information broadcast by the source access network device based on the scheduling information of the first information.
  • Each cell group corresponds to a G-RNTI, and the G-RNTI is used to distinguish the cell group. Therefore, the second PDCCH can be scrambled through the G-RNTI, so that only the UEs in the cell group corresponding to the G-RNTI can successfully descramble the second PDCCH and obtain the scheduling information of the first information. Furthermore, the non-group head UE in the cell group corresponding to the G-RNTI can receive the first information broadcast by the source access network device based on the scheduling information of the first information.
  • the non-group leader UE determines the first RA-RNTI and the first beam based on the first information.
  • the non-group leader UE after receiving the first information, determines the first RA-RNTI and the first beam based on the first information.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, The identifier of the first beam or the identifier of the synchronization signal and PBCH block (SSB) corresponding to the first beam.
  • PRACH physical random access channel
  • SSB PBCH block
  • the non-group head UE may determine the first RA-RNTI based on any one of the parameters of the first RA-RNTI, PRACH resources, preamble, identity of the first beam, and identity of the SSB corresponding to the first beam.
  • Non-group leader UEs can plan based on PRACH resources. Calculate the first RA-RNTI.
  • the non-group head UE can determine the PRACH resource based on the preamble, and then calculate the first RA-RNTI based on the PRACH resource.
  • the non-group head UE can determine the PRACH resource based on the identifier of the first beam, and then calculate the first RA-RNTI based on the PRACH resource.
  • the non-group head UE can determine the PRACH resource based on the identifier of the SSB, and then calculate the first RA-RNTI based on the PRACH resource.
  • the non-group head UE can use any of the PRACH resources, preambles, first beam identifiers, or the identifiers of the SSBs corresponding to the first beams.
  • One parameter determines the first beam.
  • the target access network device broadcasts the first PDCCH scrambled by the first RA-RNTI.
  • the group leader UE and the non-group leader UE may receive the first PDCCH scrambled by the first RA-RNTI and broadcast by the target access network device.
  • the target access network device may calculate the first RA-RNTI based on the PRACH resource. After sending the first information to the source access network device, the target access network device broadcasts the first PDCCH scrambled by the first RA-RNTI.
  • the non-group head UE descrambles the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2.
  • the non-group leader UE after receiving the first PDCCH, descrambles the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, so that it can subsequently receive msg2 based on the scheduling information of msg2.
  • the group head UE can also descramble the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, so that it can subsequently receive msg2 based on the scheduling information of msg2.
  • the group head UE may determine the first RA-RNTI based on PRACH resources in advance.
  • the target access network device broadcasts msg2 through the first beam.
  • the group head UE and the non-group head UE may receive msg2 broadcast by the target access network device through the first beam based on the scheduling information of msg2 in the first PDCCH.
  • the non-group head UE can obtain the first RA-RNTI and the first beam transmitting msg2, so that it can parse the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2, and then based on Scheduling information of msg2 and the first beam, receive msg2.
  • msg2 includes TA information of the group leader UE and uplink resource allocation information of non-group leader UEs. Therefore, based on the method described in Figure 4, it is beneficial for the non-group leader UE to accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE.
  • Figure 5 is a schematic flowchart of another information transmission method provided by an embodiment of the present application.
  • the embodiment depicted in FIG. 5 is an improvement on the embodiment depicted in FIG. 4 .
  • the target access network device after the target access network device sends the first information to the source access network device, when the source access network device notifies the target access network device that it can send the first PDCCH and msg2, the target access network The device will send the first PDCCH and msg2, thereby preventing the target access network device from sending the first PDCCH and msg2 prematurely, causing the non-group leader UE to be unable to successfully receive the first PDCCH and msg2.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example.
  • This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment or target access network equipment in Figure 5 may also support the group leader UE, non-group leader UE, source access network equipment or target access network.
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the msg1 includes the preamble. msg1 is used for random access.
  • the target access network device sends the first information to the source access network device.
  • the source access network device may receive the first information.
  • the first information is used to determine a first random access wireless network temporary identifier (RA-RNTI) and a first beam
  • the first RA-RNTI is used to scramble a first physical downlink control channel (PDCCH)
  • the third One PDCCH is used to carry the scheduling information of msg2, which includes the time advance (TA) information of the group head UE and the uplink resource allocation information of all UEs in the UE group.
  • the source access network device sends the first information to the non-group leader UE.
  • the non-group leader UE may receive the first information.
  • steps 501 to 503 please refer to the description in the embodiment described in FIG. 4 and will not be described again here.
  • the source access network device starts the timer.
  • the timer is started.
  • the non-group leader UE determines the first RA-RNTI and the first beam based on the first information.
  • step 505 please refer to the description in the embodiment described in Figure 4, and will not be described again here.
  • the non-group leader UE sends third information to the source access network device, where the third information indicates that the non-group leader UE has received the first information.
  • the source access network device can receive the third information.
  • Step 505 may be performed first, and then step 506 may be performed, or step 506 may be performed first, and then step 505 may be performed.
  • the source access network device sends the second information to the target access network device, and the second information indicates sending the first PDCCH and msg2.
  • the target access network device can receive the second information.
  • step 504 may also be performed and step 506 is not performed.
  • the source access network device sends second information to the target access network device, and the second information indicates sending the first PDCCH and msg2.
  • step 506 may also be performed and step 504 is not performed.
  • the source access network device receives the third information sent by all non-group leader UEs, the source access network device sends the second information to the target access network device.
  • Figure 5 takes as an example that both step 504 and step 506 are executed.
  • the target access network device executes step 508.
  • the target access network device broadcasts the first PDCCH scrambled by the first RA-RNTI.
  • the group leader UE and the non-group leader UE may receive the first PDCCH scrambled by the first RA-RNTI and broadcast by the target access network device.
  • the non-group head UE descrambles the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2.
  • the target access network device broadcasts msg2 through the first beam.
  • the group head UE and the non-group head UE may receive msg2 broadcast by the target access network device through the first beam based on the scheduling information of msg2 in the first PDCCH.
  • steps 508 to 510 please refer to the description in the embodiment described in FIG. 4 and will not be described again here.
  • Figure 6 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • the embodiment depicted in FIG. 6 is an improvement on the embodiment depicted in FIG. 5 .
  • the source access network device may notify which UE is the group leader UE and which UE is the non-group leader UE, so that the group leader UE and the non-group leader UE perform corresponding operations.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method. This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment or target access network equipment in Figure 6 may also support the group leader UE, non-group leader UE, source access network equipment or target access network
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the source access network device sends a group switching request to the target access network device.
  • the target access network device can receive the group handover request.
  • the group handover request is used to request cell handover for the UE group, and the group handover request carries the identifier of the group head UE. That is to say, the group handover request can indicate to the target access network device which UE is the group head UE.
  • the identity of the group head UE may be the cell radio network temporary identifier (cell radio network temporary identifier, C-RNTI) of the group head UE.
  • the identifier of the group head UE may also be other information that can represent the group head UE.
  • the target access network device By indicating the group head UE to the target access network device, only after the target access network device receives msg1 can it identify whether the msg1 was sent by the group head UE. If the msg1 is sent by the group head UE, the target access network device sends the first information to the source access network device.
  • the target access network device sends switching confirmation information to the source access network device.
  • the source access network device can receive the handover confirmation information.
  • the source access network device sends the first command to the group head UE.
  • the group head UE may receive the first command.
  • the source access network device sends the second command to the non-group leader UE.
  • the non-group leader UE may receive the second command.
  • both the first command and the second command carry the identity of the group head UE.
  • the first command and the second command can be the same.
  • the first command carries information used to indicate that the UE that receives the first command is a group leader UE
  • the second command carries information used to indicate that the UE that receives the second command is a non-group leader UE.
  • the first command and the second command may have the same name, and both carry the first information element.
  • the first information element in the first command is used to indicate that the UE that receives the first command is a non-group leader UE.
  • the first information element in the second command is used to indicate that the UE that receives the second command is a non-group leader UE.
  • the values of the first information element in the first command and the first information element in the second command are different. For example, the value of the first cell in the first command is 1, and the value of the first cell in the second command is 0. Alternatively, the value of the first cell in the first command is 0, and the value of the first cell in the second command is 1.
  • the signaling names of the first command and the second command are different.
  • the first command indicates that the UE that received the first command is the information of the group head UE
  • the second command indicates that the second command is received.
  • the UE is the information of non-group head UE. That is to say, by sending commands with different names to different types of UEs, it is indicated whether the UE receiving the command is the group head UE.
  • the first command and the second command indicate cell switching. That is to say, the first command and the second command may be switching commands. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • the first command and the second command may not be switching commands.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the G-RNTI of the UE group can be indicated through the second command, so that the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group can be received subsequently based on the G-RNTI.
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the msg1 includes the preamble. msg1 is used for random access.
  • the target access network device sends the first information to the source access network device.
  • the source access network device may receive the first information.
  • the first information is used to determine a first random access wireless network temporary identifier (RA-RNTI) and a first beam
  • the first RA-RNTI is used to scramble a first physical downlink control channel (PDCCH)
  • the third One PDCCH is used to carry the scheduling information of msg2, which includes the time advance (TA) information of the group head UE and the uplink resource allocation information of all UEs in the UE group.
  • the source access network device sends the first information to the non-group leader UE.
  • the non-group leader UE may receive the first information.
  • the source access network device starts the timer.
  • the non-group leader UE determines the first RA-RNTI and the first beam based on the first information.
  • the non-group leader UE after receiving the first information, determines the first RA-RNTI and the first beam based on the first information.
  • the non-group leader UE sends third information to the source access network device, where the third information indicates that the non-group leader UE has received the first information.
  • the source access network device can receive the third information.
  • the non-group leader UE after receiving the first information, the non-group leader UE sends the third information to the source access network device.
  • the source access network device sends second information to the target access network device, and the second information indicates sending the first PDCCH and msg2.
  • the target access network device can receive the second information. After receiving the second information, the target access network device executes step 612.
  • the target access network device broadcasts the first PDCCH scrambled by the first RA-RNTI.
  • the group leader UE and the non-group leader UE may receive the first PDCCH scrambled by the first RA-RNTI and broadcast by the target access network device.
  • the non-group head UE descrambles the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2.
  • the target access network device broadcasts msg2 through the first beam.
  • the group head UE and the non-group head UE may receive msg2 broadcast by the target access network device through the first beam based on the scheduling information of msg2 in the first PDCCH.
  • steps 605 to 614 please refer to the descriptions in the embodiments described in FIG. 4 and FIG. 5 , and will not be described again here.
  • step 608, step 610 and step 611 in Figure 6 may not be executed.
  • Figure 6 takes the execution of step 608, step 610 and step 611 as an example.
  • FIG. 7 is a schematic flowchart of another information transmission method provided by an embodiment of the present application.
  • the method described in FIG. 7 is a parallel solution to the method described in FIG. 4 .
  • the target access network device may broadcast the TA information of the head UE in the UE group and the uplink resource allocation information of all non-head UEs in the UE group based on the G-RNTI. Therefore, the non-group leader UE can receive the TA information of the group leader UE and the uplink resource allocation information of all non-group leader UEs in the UE group based on the G-RNTI.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example.
  • This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment, or target access network equipment in Figure 7 may also support the group leader UE, non-group leader UE, source access network equipment, or target access network.
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • step 701 For the description of step 701, please refer to the description of step 401, which will not be described again here.
  • the target access network device broadcasts msg2 through the first beam.
  • the group head UE may use the first beam to receive msg2 based on the scheduling information of msg2.
  • the target access network device may also broadcast a second PDCCH, and the second PDCCH carries the scheduling information of msg2. After the target access network device broadcasts the second PDCCH, it broadcasts msg2 through the first beam.
  • the target access network device broadcasts the first PDCCH.
  • the non-head UE may receive the first PDCCH.
  • the first PDCCH is scrambled by the G-RNTI of the UE group, and the first PDCCH is used to carry scheduling information of the first information.
  • the first information includes TA information of the group leader UE and uplink resource allocation information of all non-group leader UEs in the UE group.
  • Each cell group corresponds to a G-RNTI, and the G-RNTI is used to distinguish the cell group. Therefore, the first PDCCH can be scrambled through the G-RNTI, so that only the UEs in the cell group corresponding to the G-RNTI can successfully descramble the first PDCCH and obtain the scheduling information of the first information. Furthermore, the non-group head UE in the cell group corresponding to the G-RNTI can receive the first information broadcast by the target access network device based on the scheduling information of the first information.
  • the non-group head UE descrambles the first PDCCH based on the G-RNTI to obtain the scheduling information of the first information.
  • the non-group head UE after the non-group head UE receives the first PDCCH, it descrambles the first PDCCH based on the G-RNTI to obtain the scheduling information of the first information, so that it can subsequently receive the first information based on the scheduling information of the first information. .
  • the target access network device broadcasts the first information.
  • the non-group leader UE receives the first information broadcast by the target access network device based on the scheduling information of the first information in the first PDCCH.
  • the target access network device can broadcast the TA information of the head UE in the UE group and the uplink resource allocation information of all non-head UEs in the UE group based on the G-RNTI. Therefore, the non-group leader UE can receive the TA information of the group leader UE and the uplink resource allocation information of all non-group leader UEs in the UE group based on the G-RNTI. Therefore, based on the method described in Figure 7, it is beneficial for the non-group leader UE to accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE.
  • FIG. 8 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • the embodiment depicted in FIG. 8 is an improvement on the embodiment depicted in FIG. 7 .
  • the source access network device may notify which UE is the group leader UE and which UE is the non-group leader UE, so that the group leader UE and the non-group leader UE perform corresponding operations.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example. This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment or target access network equipment in Figure 8 may also support the group leader UE, non-group leader UE, source access network equipment or target access network
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the source access network device sends a group switching request to the target access network device.
  • the target access network device can receive the group handover request.
  • the group switching request is used to request cell switching for the UE group, and the group switching request carries the identity of the group head UE in the UE group and the G-RNTI of the UE group. That is to say, the group handover request can indicate to the target access network device which UE is the group head UE.
  • the identifier of the group head UE may be the C-RNTI of the group head UE.
  • the identifier of the group head UE may also be other information that can represent the group head UE.
  • the subsequent target access network device can identify the group after receiving msg1. Whether msg1 is sent by the group head UE. If the msg1 is sent by the group head UE, the target access network device sends the first information to the source access network device.
  • the target access network device can subsequently scramble the first PDCCH based on the G-RNTI.
  • the target access network device sends switching confirmation information to the source access network device.
  • the source access network device can receive the handover confirmation information.
  • the source access network device sends the first command to the group head UE.
  • the group head UE may receive the first command.
  • the source access network device sends the second command to the non-group leader UE.
  • the non-group leader UE may receive the second command.
  • the second command carries the G-RNTI of the UE group.
  • the G-RNTI of the UE group is indicated through the second command, so that the first PDCCH can be subsequently descrambled based on the G-RNTI.
  • both the first command and the second command carry the identity of the group head UE.
  • the first command and the second command can be the same.
  • the first command carries information used to indicate that the UE that receives the first command is a group leader UE
  • the second command carries information used to indicate that the UE that receives the second command is a non-group leader UE.
  • the first command and the second command may have the same name, and both carry the first information element.
  • the first information element in the first command is used to indicate that the UE that receives the first command is a non-group leader UE.
  • the first information element in the second command is used to indicate that the UE that receives the second command is a non-group leader UE.
  • the values of the first information element in the first command and the first information element in the second command are different. For example, the value of the first cell in the first command is 1, and the value of the first cell in the second command is 0. Alternatively, the value of the first cell in the first command is 0, and the value of the first cell in the second command is 1.
  • the signaling names of the first command and the second command are different.
  • the first command indicates that the UE that received the first command is the information of the group head UE
  • the second command indicates that the second command is received.
  • the UE is the information of non-group head UE. That is to say, by sending commands with different names to different types of UEs, it is indicated whether the UE receiving the command is the group head UE.
  • the first command and the second command indicate cell switching. That is to say, the first command and the second command may be switching commands. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • the first command and the second command may not be switching commands.
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the target access network device broadcasts msg2 through the first beam.
  • the group head UE may use the first beam to receive msg2 based on the scheduling information of msg2.
  • the target access network device broadcasts the first PDCCH.
  • the non-head UE may receive the first PDCCH.
  • the first PDCCH is scrambled by the Group Mobile User Temporary Identity (G-RNTI) of the UE group, and the first PDCCH is used to carry scheduling information of the first information.
  • the first information includes time advance (TA) information of the group head UE and uplink resource allocation information of all non-group head UEs in the UE group.
  • TA time advance
  • the non-group head UE descrambles the first PDCCH based on the G-RNTI to obtain the scheduling information of the first information.
  • the non-group head UE after the non-group head UE receives the first PDCCH, it descrambles the first PDCCH based on the G-RNTI to obtain the scheduling information of the first information, so that it can subsequently receive the first information based on the scheduling information of the first information. .
  • the target access network device broadcasts the first information.
  • the non-group leader UE receives the first information broadcast by the target access network device based on the scheduling information of the first information in the first PDCCH.
  • steps 805 to 809 please refer to the description in the embodiment described in FIG. 7 and will not be described again here.
  • Figure 9 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • the method described in FIG. 9 is a parallel solution to the methods described in FIGS. 4 and 7 .
  • the target access network device can send the TA information of the group leader UE and the uplink resource allocation information of all non-group leader UEs to the source access network device, and the source access network device sends the TA information of the group leader UE. and the uplink resource allocation information of the non-group head UE is sent to the non-group head UE.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example. This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment or target access network equipment in Figure 9 may also support the group leader UE, non-group leader UE, source access network equipment or target access network
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the target access network device uses the first beam to broadcast msg2.
  • the group head UE may use the first beam to receive msg2 based on the scheduling information of msg2.
  • the target access network device may also broadcast a second PDCCH, and the second PDCCH carries the scheduling information of msg2. After the target access network device broadcasts the second PDCCH, it broadcasts msg2 through the first beam.
  • the target access network device sends the first information to the source access network device.
  • the first information includes the TA information of the group head UE and the uplink resource allocation information of all non-group head UEs in the UE group.
  • the source access network device may receive the first information.
  • the source access network device sends the TA information of the group head UE and the uplink resource allocation information of the non-group head UE to the non-group head UE.
  • the non-group leader UE may receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE sent by the source access network device.
  • the source access network device after receiving the first information, sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE.
  • the source access network device may send the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE in one of the following two ways.
  • Method 1 The source access network device sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE through an RRC message.
  • the non-head UE in the UE group receives the TA information of the head UE in the UE group and the uplink resource allocation information of the non-head UE in the UE group sent by the source access network device through the RRC message.
  • Method 2 The source access network device broadcasts the first PDCCH.
  • the first PDCCH is scrambled by the G-RNTI of the UE group.
  • the first PDCCH is used to carry the scheduling information of the first information; the source access network device broadcasts the first information.
  • the non-group head UE receives the first PDCCH broadcast by the source access network device; the non-group head UE uses the G-RNTI to descramble the first PDCCH to obtain the scheduling information of the first information; the non-group head UE based on the first Scheduling information of the first information in the PDCCH is received, and the source access network device broadcasts the first information.
  • Each cell group corresponds to a G-RNTI, and the G-RNTI is used to distinguish the cell group. Therefore, the first PDCCH can be scrambled through the G-RNTI, so that only the UEs in the cell group corresponding to the G-RNTI can successfully descramble the first PDCCH and obtain the scheduling information of the first information. Furthermore, the non-group head UE in the cell group corresponding to the G-RNTI can receive the first information broadcast by the source access network device based on the scheduling information of the first information.
  • the target access network device can send the TA information of the group leader UE and the uplink resource allocation information of all non-group leader UEs to the source access network device, and the source access network device will The TA information of the head UE and the uplink resource allocation information of the non-head UE are sent to the non-head UE. Therefore, based on the method described in Figure 9, it is beneficial for the non-group leader UE to accurately receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE.
  • FIG. 10 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • the embodiment depicted in FIG. 10 is an improvement on the embodiment depicted in FIG. 9 .
  • the source access network device may notify which UE is the group leader UE and which UE is the non-group leader UE, so that the group leader UE and the non-group leader UE perform corresponding operations.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example. This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment, or target access network equipment in Figure 10 may also support the group leader UE, non-group leader UE, source access network equipment, or target access network.
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the source access network device sends a group switching request to the target access network device.
  • the target access network device can receive the group handover request.
  • the group switching request is used to request cell switching for a UE group.
  • the group switching request carries the identity of the group head UE in the UE group. That is to say, the group handover request can indicate to the target access network device which UE is the group head UE.
  • the identity of the group head UE may be the cell radio network temporary identifier (cell radio network temporary identifier, C-RNTI) of the group head UE.
  • the identifier of the group head UE may also be other information that can represent the group head UE.
  • the target access network device By indicating the group head UE to the target access network device, only after the target access network device receives msg1 can it identify whether the msg1 was sent by the group head UE. If the msg1 is sent by the group head UE, the target access network device sends the first information to the source access network device.
  • the target access network device sends handover confirmation information to the source access network device.
  • the source access network device can receive the handover confirmation information.
  • the source access network device sends the first command to the group head UE. Accordingly, the group head UE may receive the first command.
  • the source access network device sends the second command to the non-group leader UE. Accordingly, the non-group leader UE may receive the second command.
  • both the first command and the second command carry the identity of the group head UE.
  • the first command and the second command can be the same.
  • the first command carries information used to indicate that the UE that receives the first command is a group leader UE
  • the second command carries information used to indicate that the UE that receives the second command is a non-group leader UE.
  • the first command and the second command may have the same name, and both carry the first information element.
  • the first information element in the first command is used to indicate that the UE that receives the first command is a non-group leader UE.
  • the first information element in the second command is used to indicate that the UE that receives the second command is a non-group leader UE.
  • the values of the first information element in the first command and the first information element in the second command are different. For example, the value of the first cell in the first command is 1, and the value of the first cell in the second command is 0. Alternatively, the value of the first cell in the first command is 0, and the value of the first cell in the second command is 1.
  • the signaling names of the first command and the second command are different.
  • the first command indicates that the UE that received the first command is the information of the group head UE
  • the second command indicates that the second command is received.
  • the UE is the information of non-group head UE. That is to say, by sending commands with different names to different types of UEs, it is indicated whether the UE receiving the command is the group head UE.
  • the first command and the second command indicate cell switching. That is to say, the first command and the second command may be switching commands. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • the first command and the second command may not be switching commands.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the G-RNTI of the UE group can be indicated through the second command, so that the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group can be received subsequently based on the G-RNTI.
  • the group head UE uses the first beam to send msg1 to the target access network device.
  • the target access network device may use the first beam to receive the msg1 sent by the group head UE.
  • the target access network device uses the first beam to broadcast msg2.
  • the group head UE may use the first beam to receive msg2 based on the scheduling information of msg2.
  • the target access network device sends the first information to the source access network device.
  • the first information includes the TA information of the group head UE and the uplink resource allocation information of all non-group head UEs in the UE group.
  • the source access network device may receive the first information.
  • the source access network device sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE.
  • the non-group leader UE may receive the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE sent by the source access network device.
  • steps 1005 to 1008 please refer to the description in the embodiment described in FIG. 9 and will not be described again here.
  • Figure 11 is a schematic flowchart of an information transmission method provided by an embodiment of the present application.
  • the group leader UE, non-group leader UE, source access network equipment, and target access network equipment are used as the execution subjects of this method as an example.
  • This application does not limit the execution subjects of this method.
  • the group leader UE, non-group leader UE, source access network equipment, or target access network equipment in Figure 11 may also support the group leader UE, non-group leader UE, source access network equipment, or target access network.
  • the chip, chip system, or processor of the device that implements this method may also be a logic module or software that can realize all or part of the functions of the group leader UE, non-group leader UE, source access network equipment, or target access network equipment. in:
  • the source access network device sends the first command to the head UE in the UE group. Accordingly, the group head UE may receive the first command.
  • the source access network device sends the second command to the non-head UE in the UE group. Accordingly, the non-group leader UE may receive the second command.
  • both the first command and the second command carry the identity of the group head UE.
  • the first command and the second command can be the same.
  • the first command carries information used to indicate that the UE that receives the first command is a group leader UE
  • the second command carries information used to indicate that the UE that receives the second command is a non-group leader UE.
  • the first command and the second command may have the same name, and both carry the first information element.
  • the first information element in the first command is used to indicate that the UE that receives the first command is a non-group leader UE.
  • the first information element in the second command is used to indicate that the UE that receives the second command is a non-group leader UE.
  • the values of the first information element in the first command and the first information element in the second command are different. For example, the value of the first cell in the first command is 1, and the value of the first cell in the second command is 0. Alternatively, the value of the first cell in the first command is 0, and the value of the first cell in the second command is 1.
  • the signaling names of the first command and the second command are different.
  • the first command indicates that the UE that received the first command is the information of the group head UE
  • the second command indicates that the second command is received.
  • the UE is the information of non-group head UE. That is to say, by sending commands with different names to different types of UEs, it is indicated whether the UE receiving the command is the group head UE.
  • the first command and the second command indicate cell switching. That is, the first command and The second command may be a switching command. Based on this possible implementation, the first command and the second command are used both for cell switching and for instructing non-group leader UEs, which can avoid adding additional signaling and save signaling overhead.
  • the first command and the second command may not be switching commands.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the G-RNTI of the UE group can be indicated through the second command, so that the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group can be received subsequently based on the G-RNTI.
  • the first command can be used to accurately notify which UE is the group head UE, so that the group head UE can perform corresponding operations
  • the second command can be used to accurately notify which UE is the non-group head UE. In this way, the non-group head UE can perform corresponding operations.
  • Figure 12 is a schematic flowchart of a method for determining a UE group provided by an embodiment of the present application.
  • the source access network device is used as the execution subject of this method as an example. This application does not limit the execution subject of this method.
  • the source access network device in Figure 12 may also be a chip, chip system, or processor that supports the source access network device to implement the method, or may be logic that can implement all or part of the functions of the source access network device. module or software. in:
  • the source access network device receives measurement reports from multiple UEs.
  • the measurement report may include neighboring cell signal quality and/or serving cell signal quality.
  • the source access network device determines multiple second UEs from the multiple UEs based on the measurement reports of the multiple UEs, and the measurement reports corresponding to the second UEs indicate that the neighboring cell signal quality is higher than the serving cell signal quality higher than the first threshold, Or the signal quality of the serving cell is lower than the second threshold and the signal quality of the neighboring cell is higher than the third threshold.
  • the source access network device receives the measurement reports reported by UE1 to UE5.
  • the measurement reports corresponding to UE1 to UE4 indicate that the neighboring cell signal quality is higher than the serving cell signal quality and is higher than the first threshold, or the serving cell signal quality is lower than the second threshold and the neighboring cell signal quality is higher than the third threshold.
  • the measurement report corresponding to UE5 indicates that the signal quality of the neighboring cell is less than or equal to the first threshold than the signal quality of the serving cell, or the signal quality of the serving cell is greater than or equal to the second threshold and the signal quality of the neighboring cell is less than the third threshold.
  • the second UE includes UE1 to UE4.
  • the source access network device determines whether to divide the plurality of second UEs into a UE group based on the locations of the plurality of second UEs.
  • the source access network device determines multiple second UEs, it determines whether to divide the multiple second UEs into a UE group based on the locations of the multiple second UEs.
  • the source access network device may determine the location of the second UE based on the optimal beam and TA information corresponding to the second UE. Based on this possible implementation, the location of the second UE can be accurately determined.
  • the source access network device determines whether to divide the multiple second UEs into a UE group based on the locations of the multiple second UEs.
  • the specific implementation is as follows:
  • the multiple second UEs are divided into a UE group; if the degree of dispersion between the locations of the multiple second UEs is greater than the fourth threshold , then multiple second UEs are not divided into one UE group.
  • the UE groups that need to perform cell handover can be reasonably divided.
  • the position of the group head UE is closest to the center position of the UE group.
  • each UE reports a measurement report to the source access network device.
  • the source access network device divides the UE groups that need to perform cell handover based on the measurement reports reported by multiple UEs, and selects the group head UE.
  • Figure 12 can be applied to the scenario where the UE of a passenger on a vehicle (such as a bus or subway) communicates with an access network device outside the vehicle.
  • Figure 12 can also be combined with the method described in Figures 4 to 11. That is, the source access network equipment in Figures 4 to 11 The device may also perform the steps in Figure 12.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the non-group head UE in the above method embodiment.
  • the device may be a non-group leader UE, a device in a non-group leader UE, or a device that can be used in conjunction with the non-group leader UE.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit.
  • the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive the first information sent by the source access network device.
  • the first information is used to determine the first random access wireless network temporary identifier (RA-RNTI) and the first beam.
  • the first RA-RNTI Used to scramble the first physical downlink control channel (PDCCH), the first PDCCH is used to carry the scheduling information of message (msg) 2, the first beam is used to transmit msg1 and msg2, the msg1 includes the preamble, and the msg2 includes the UE Time advance (TA) information of the head UE in the group and uplink resource allocation information of all UEs in the UE group;
  • TA Time advance
  • the processing unit 1302 is configured to determine the first RA-RNTI and the first beam based on the first information; the communication unit 1301 is also configured to receive the first PDCCH scrambled by the first RA-RNTI broadcast by the target access network device; processing Unit 1302 is also configured to descramble the first PDCCH based on the first RA-RNTI to obtain the scheduling information of msg2; the communication unit 1301 is also configured to receive the target access network equipment broadcast through the first beam based on the scheduling information of msg2. msg2.
  • the communication unit 1301 receives the first information sent by the source access network device specifically by: receiving the first information sent by the source access network device through a radio resource control (RRC) message.
  • RRC radio resource control
  • the communication unit 1301 receives the first information sent by the source access network device specifically by: receiving the second PDCCH broadcast by the source access network device.
  • the second PDCCH is composed of the G-RNTI of the UE group. Scrambling, the second PDCCH is used to carry the scheduling information of the first information; the second PDCCH is descrambled based on the G-RNTI of the UE group to obtain the scheduling information of the first information; the scheduling information receiving source based on the first information receives The first information broadcast by the network access device.
  • the communication unit 1301 is further configured to, after receiving the first information sent by the source access network device, send third information to the source access network device, where the third information indicates that the non-group leader UE has The first message is received.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam.
  • the first RA-RNTI the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • the communication unit 1301 is further configured to receive a second command sent by the source access network device before receiving the first information sent by the source access network device; wherein the second command carries a group header.
  • the identity of the UE; or, the second command carries information indicating that the UE that received the second command is a non-group head UE; or, the second command is different from the name of the first command sent by the source access network device to the group head UE.
  • the first command indicates that the UE that received the first command is the information of the group leader UE
  • the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the source access network device in the above method embodiment.
  • the device may be a source access network device, a device in the source access network device, or a device that can be used in conjunction with the source access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • Communication unit 1301 configured to receive the first information sent by the target access network device, the first information being used to determine the first random access wireless network temporary identifier (RA-RNTI) and the first beam, the first RA-RNTI Used to scramble the first physical downlink control channel (PDCCH), the first PDCCH is used to carry the scheduling information of message (msg) 2, the first beam is used to transmit msg1 and msg2, the msg1 includes the preamble, and the msg2 includes the UE
  • the time advance (TA) information of the group leader UE in the group and the uplink resource allocation information of all UEs in the UE group; the communication unit 1301 is also used to send the first information to non-group leader UEs in the UE group.
  • the communication unit 1301 sends the first information to the non-head UE in the UE group by sending the first information to the non-head UE in the UE group through a radio resource control (RRC) message.
  • RRC radio resource control
  • the communication unit 1301 sends the first information to the non-head UE in the UE group by broadcasting a second PDCCH, and the second PDCCH consists of the Group Mobile User Temporary Identity (G-RNTI) of the UE group. ) scrambling, the second PDCCH is used to carry scheduling information of the first information; broadcasting the first information.
  • G-RNTI Group Mobile User Temporary Identity
  • the processing unit 1302 is configured to start a timer after the communication unit 1301 sends the first information to the non-head UE in the UE group; the communication unit 1301 is also configured to when the timer times out, The second information is sent to the target access network device, and the second information indicates sending the first PDCCH and msg2.
  • the communication unit 1301 is also configured to, after sending the first information to non-group leader UEs in the UE group, when receiving the third information sent by all non-group leader UEs, access the target
  • the network device sends second information, the second information indicates sending the first PDCCH and msg2, and the third information indicates that the non-group leader UE has received the first information.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam.
  • the first RA-RNTI the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • the communication unit 1301 is also configured to perform the following steps before receiving the first information sent by the target access network device: sending a group switching request to the target access network device, where the group switching request is used to request Perform cell handover for the UE group, and the group handover request carries the identity of the group head UE; receive the handover confirmation information sent by the target access network device; send the first command to the group head UE; send the second command to the non-group head UE; where , both the first command and the second command carry the identification of the group head UE; or, the first command carries information used to indicate that the UE receiving the first command is the group head UE, and the second command carries information used to indicate that the UE receiving the first command is the group head UE.
  • the UE receiving the second command is a non-group leader UE; or, the signaling names of the first command and the second command are different, and the first command indicates that the UE receiving the first command is the group leader UE, and the second command indicates Information that the UE that received the second command is a non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the target access network device in the above method embodiment.
  • the device may be a target access network device, a device in the target access network device, or a device that can be used in conjunction with the target access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into receiving unit and sending unit. in:
  • the communication unit 1301 is configured to use the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group, where msg1 includes a preamble;
  • the communication unit 1301 is also configured to send first information to the source access network device.
  • the first information is used to determine the first random access wireless network temporary identifier (RA-RNTI) and the first beam.
  • the first RA-RNTI Used to scramble the first physical downlink control channel (PDCCH).
  • the first PDCCH is used to carry the scheduling information of msg2.
  • the msg2 includes the time advance (TA) information of the group head UE and the uplink resource allocation of all UEs in the UE group.
  • Information the communication unit 1301 is also used to broadcast the first PDCCH scrambled by the first RA-RNTI; the communication unit 1301 is also used to broadcast msg2 through the first beam.
  • the communication unit 1301 is further configured to receive second information sent by the source access network device before sending the first PDCCH scrambled by the first RA-RNTI, where the second information indicates sending the first PDCCH scrambled by the first RA-RNTI.
  • the first information indicates one or more of the following information: the first RA-RNTI, the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam. Or the identification of the synchronization signal block (SSB) corresponding to the first beam.
  • the first RA-RNTI the physical random access channel (PRACH) resource corresponding to the preamble, the preamble, and the identity of the first beam.
  • PRACH physical random access channel
  • SSB synchronization signal block
  • the communication unit 1301 is also configured to perform the following steps before receiving the message (msg) 1 sent by the group head UE in the user equipment (UE) group using the first beam: receive the source access network A group switching request sent by the device.
  • the group switching request is used to request cell switching for a UE group.
  • the group switching request carries the identification of the group head UE; the switching confirmation information is sent to the source access network device.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the non-group head UE in the above method embodiment.
  • the device may be a non-group leader UE, a device in a non-group leader UE, or a device that can be used in conjunction with the non-group leader UE.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit.
  • the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive the first PDCCH scrambled by the Group Mobile Subscriber Temporary Identity (G-RNTI) of the UE group broadcast by the target access network device, and the first PDCCH is used to carry the scheduling information of the first information; process The unit is configured to descramble the first PDCCH based on the G-RNTI to obtain the scheduling information of the first information; the communication unit 1301 is also configured to receive the first information broadcast by the target access network device based on the scheduling information of the first information.
  • the first information includes the time advance (TA) information of the head UE in the UE group and the uplink resource allocation information of all non-head UEs in the UE group.
  • TA time advance
  • the communication unit 1301 is also configured to receive a second command sent by the source access network device, where the second command carries the G-RNTI of the UE group; wherein the second command also carries the G-RNTI of the group head UE. identification; or, the second command also carries information indicating that the UE that received the second command is a non-group head UE; or, the second command is combined with the signaling of the first command sent by the source access network device to the group head UE.
  • the names are different.
  • the first command indicates that the UE that received the first command is the information of the group leader UE
  • the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the target access network device in the above method embodiment.
  • the device may be a target access network device, a device in the target access network device, or a device that can be used in conjunction with the target access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to use the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group, where msg1 includes a preamble; the communication unit 1301 is also configured to broadcast msg2 through the first beam; communication Unit 1301 is also used to broadcast the first PDCCH, which is scrambled by the Group Mobile Subscriber Temporary Identity (G-RNTI) of the UE group, and the first PDCCH is used to carry scheduling information of the first information; communication unit 1301, It is also used to broadcast the first information, which includes the time advance (TA) information of the group head UE and the uplink resource allocation information of all non-group head UEs in the UE group.
  • TA time advance
  • the communication unit 1301 is also configured to perform the following steps before receiving the message (msg) 1 sent by the group head UE in the user equipment (UE) group using the first beam: receive the source access network A group switching request sent by the device.
  • the group switching request is used to request cell switching for the UE group.
  • the group switching request carries the identity of the group head UE and the G-RNTI of the UE group; the group switching request sends switching confirmation information to the source access network device.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the source access network device in the above method embodiment.
  • the device may be a source access network device, a device in the source access network device, or a device that can be used in conjunction with the source access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to send a group switching request to the target access network device.
  • the group switching request is used to request cell switching for the UE group.
  • the group switching request carries the identity of the group head UE in the UE group and the G of the UE group.
  • -RNTI the communication unit 1301 is also used to receive the handover confirmation information sent by the target access network device;
  • the communication unit 1301 is also used to send the first command to the group leader UE;
  • the communication unit 1301 is also used to send the first command to the non-group leader UE
  • Send a second command which carries the G-RNTI of the UE group; wherein the first command and the second command also carry the identity of the group head UE; or the first command also carries a signal indicating receipt of the first command.
  • the second command also carries information indicating that the UE that received the second command is a non-group leader UE; or, the signaling names of the first command and the second command are different, and the first command The command indicates that the UE that received the first command is the information of the group leader UE, and the second command indicates that the UE that received the second command is the information of the non-group leader UE.
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the non-group head UE in the above method embodiment.
  • the device may be a non-group leader UE, a device in a non-group leader UE, or a device that can be used in conjunction with the non-group leader UE.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit.
  • the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group sent by the source access network device.
  • the communication unit 1301 receives the TA of the head UE in the UE group sent by the source access network device.
  • the specific method of information and uplink resource allocation information of non-group leader UEs is: receiving the TA information of the group leader UE and the uplink resources of the non-group leader UE in the UE group sent by the source access network device through the radio resource control (RRC) message. Assign information.
  • RRC radio resource control
  • the communication unit 1301 receives the TA information of the group head UE and the uplink resource allocation information of the non-group head UE in the UE group sent by the source access network device as follows:
  • the first PDCCH is scrambled by the Group Mobile Subscriber Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile Subscriber Temporary Identity
  • the first PDCCH is used to carry scheduling information of the first information.
  • the first information includes the UE Time advance (TA) information of the group head UE in the group and uplink resource allocation information of all non-group head UEs in the UE group; use G-RNTI to descramble the first PDCCH to obtain the scheduling information of the first information; Based on the scheduling information of the first information, the receiving source access network device broadcasts the first information.
  • TA UE Time advance
  • the communication unit 1301 is also configured to receive a second command sent by the source access network device; wherein the second command carries the identifier of the group head UE; or the second command carries a command indicating the receipt of the group head UE.
  • Information that the UE receiving the second command is a non-group leader UE; or, the second command is different from the signaling name of the first command sent by the source access network device to the group leader UE, and the first command indicates receipt of the first command.
  • the second command indicates that the UE that received the second command is a non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the source access network device in the above method embodiment.
  • the device may be a source access network device, a device in the source access network device, or a device that can be used in conjunction with the source access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive the first information sent by the target access network device.
  • the first information includes the time advance (TA) information of the group head UE in the user equipment (UE) group and all non-group members in the UE group.
  • the uplink resource allocation information of the head UE; the communication unit 1301 is also used to send the TA information of the group head UE and the uplink resource allocation information of the non-group head UE to the non-group head UE.
  • the communication unit 1301 sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE specifically by: sending a radio resource control (RRC) message to the non-group leader UE.
  • RRC radio resource control
  • the UE sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE.
  • the communication unit 1301 sends the TA information of the group leader UE and the uplink resource allocation information of the non-group leader UE to the non-group leader UE by broadcasting the first PDCCH, and the first PDCCH is composed of the UE group
  • the Group Mobile User Temporary Identity (G-RNTI) is scrambled, and the first PDCCH is used to carry scheduling information of the first information; the first information is broadcast.
  • G-RNTI Group Mobile User Temporary Identity
  • the communication unit 1301 is also used to perform the following steps:
  • the group switching request is used to request cell switching for the UE group.
  • the group switching request carries the identity of the group head UE in the UE group; receive the switching confirmation sent by the target access network device. information; send the first command to the group head UE; send the second command to the non-group head UE; wherein, the first command and the second command carry the identity of the group head UE; or, the first command carries the identification of the group head UE; or, the first command carries the identification of the group head UE; or, the first command carries the identification of the group head UE; or, the first command carries the identification of the group head UE;
  • the UE receiving the first command is the group leader UE
  • the second command carries information indicating that the UE receiving the second command is the non-group leader UE; or, the signaling names of the first command and the second command are different, and the second command carries information indicating that the UE receiving the second command is a non-group leader UE.
  • One command indicates that the
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the target access network device in the above method embodiment.
  • the device may be a target access network device, a device in the target access network device, or a device that can be used in conjunction with the target access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to use the first beam to receive the message (msg) 1 sent by the group head UE in the user equipment (UE) group, where msg1 includes a preamble; the communication unit 1301 is also configured to use the first beam to broadcast msg2; communication Unit 1301 is also configured to send first information to the source access network device, where the first information includes time advance (TA) information of the group head UE and uplink resource allocation information of all non-group head UEs in the UE group.
  • TA time advance
  • the communication unit 1301 is also configured to perform the following steps before receiving the message (msg) 1 sent by the group head UE in the user equipment (UE) group using the first beam: receive the source access network A group switching request sent by the device.
  • the group switching request is used to request cell switching for a UE group.
  • the group switching request carries the identification of the group head UE; the switching confirmation information is sent to the source access network device.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the source access network device in the above method embodiment.
  • the device may be a source access network device, a device in the source access network device, or a device that can be used in conjunction with the source access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to send a first command to the group leader UE in the UE group; the communication unit 1301 is also configured to send a second command to the group leader UE in the UE group; wherein the first command and the second command carry Identity of the group head UE; or, the first command carries information indicating that the UE receiving the first command is the group head UE, and the second command carries information indicating that the UE receiving the second command is a non-group head UE. ; Or, the signaling names of the first command and the second command are different, the first command indicates that the UE that received the first command is the information of the group head UE, and the second command indicates that the UE that received the second command is the non-group head UE. UE information.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the non-group head UE in the above method embodiment.
  • the device may be a non-group leader UE, a device in a non-group leader UE, or a device that can be used in conjunction with the non-group leader UE.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit. Pass The letter unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive a second command sent by the source access network device; wherein the second command carries an identifier of the group head UE; or, the second command carries an identifier for indicating that the UE receiving the second command is a non-group member. information of the head UE; or, the second command is different from the signaling name of the first command sent by the source access network device to the group head UE, and the first command indicates that the UE receiving the first command is the information of the group head UE, Information that the second command indicates that the UE that received the second command is a non-group leader UE.
  • the second command also carries the Group Mobile User Temporary Identity (G-RNTI) of the UE group.
  • G-RNTI Group Mobile User Temporary Identity
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the group head UE in the above method embodiment.
  • the device may be the group head UE, a device in the group head UE, or a device that can be used in conjunction with the group head UE.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive a first command sent by the source access network device; wherein the first command carries an identification of the group head UE; or, the first command carries an identifier indicating that the UE receiving the first command is the group head.
  • UE information; or, the signaling names of the first command and the second command sent by the source access network device to the non-group leader UE are different, and the first command indicates that the UE that received the first command is the information of the group leader UE, Information that the second command indicates that the UE that received the second command is a non-group leader UE.
  • the first command and the second command indicate cell switching.
  • FIG. 13 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in Figure 13 can be used to perform part or all of the functions of the source access network device in the above method embodiment.
  • the device may be a source access network device, a device in the source access network device, or a device that can be used in conjunction with the source access network device.
  • the communication device may also be a chip system.
  • the communication device shown in FIG. 13 may include a communication unit 1301 and a processing unit 1302. Among them, the processing unit 1302 is used for data processing.
  • the communication unit 1301 integrates a receiving unit and a transmitting unit.
  • the communication unit 1301 may also be called a transceiver unit. Alternatively, the communication unit 1301 can also be split into a receiving unit and a sending unit. in:
  • the communication unit 1301 is configured to receive measurement reports from multiple UEs; the processing unit 1302 is configured to determine multiple second UEs from the multiple UEs based on the measurement reports of multiple user equipments (UEs), and the measurement reports corresponding to the second UEs. Indicates that the signal quality of the neighboring cell is higher than the signal quality of the serving cell higher than the first threshold, or the signal quality of the serving cell is lower than the second threshold and the signal quality of the neighboring cell is higher than the third threshold; the processing unit 1302 is also configured to based on multiple second UEs The location determines whether to divide the plurality of second UEs into one UE group.
  • UEs user equipments
  • the processing unit 1302 determines whether to divide the plurality of second UEs into a UE group based on the locations of the plurality of second UEs, including:
  • the multiple second UEs are divided into a UE group; if the degree of dispersion of the locations of the multiple second UEs is greater than the fourth threshold, then the multiple second UEs are not divided into one UE group. Multiple second UEs are divided into a UE group.
  • the group head UE is closest to the center of the UE group.
  • the processing unit 1302 is also configured to determine the location of the second UE based on the optimal beam and time advance (TA) information corresponding to the second UE.
  • TA time advance
  • FIG 14 shows a schematic structural diagram of a communication device.
  • the communication device 1400 may be the group leader UE, non-group leader UE, source access network equipment or target access network equipment in the above method embodiment, and may also support group leader UE, non-group leader UE, source access
  • the network equipment or the target access network equipment implements the chip, chip system, or processor of the above method.
  • the communication device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • the communication device 1400 may include one or more processors 1401.
  • the processor 1401 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process Software program data.
  • the communication device 1400 may include one or more memories 1402, on which instructions 1404 may be stored, and the instructions may be executed on the processor 1401, causing the communication device 1400 to perform the above method. Methods described in the Examples.
  • the memory 1402 may also store data.
  • the processor 1401 and the memory 1402 can be provided separately or integrated together.
  • the communication device 1400 may also include a transceiver 1405 and an antenna 1406.
  • the transceiver 1405 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1405 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the processing unit 1302 shown in FIG. 13 may be the processor 1401.
  • the communication unit 1301 may be a transceiver 1405.
  • the processor 1401 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1401 can store instructions 1403, and the instructions 1403 are run on the processor 1401, which can cause the communication device 1400 to execute the method described in the above method embodiment.
  • the instructions 1403 may be fixed in the processor 1401, in which case the processor 1401 may be implemented by hardware.
  • the communication device 1400 may include a circuit, and the circuit may implement the sending or receiving or communication functions in the foregoing method embodiments.
  • the processor and transceiver described in the embodiments of this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), and printed circuits. on printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a group leader UE, a non-group leader UE, a source access network device, or a target access network device.
  • the scope of the communication device described in the embodiments of the present application is not limited to this, and the communication device The structure of the device may not be limited by Figure 14.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a set of ICs for storing data and instructions. storage components;
  • the communication device may be a chip or a chip system
  • the chip 1500 shown in FIG. 15 includes a processor 1501 and an interface 1502.
  • a memory 1503 may also be included.
  • the number of processors 1501 may be one or more, and the number of interfaces 1502 may be multiple.
  • the chip is used to implement the functions of the group head UE, non-group head UE, source access network equipment or target access network equipment in the embodiment of this application:
  • the interface 1502 is used to receive or output signals
  • the processor 1501 is configured to perform data processing operations on a group leader UE, a non-group leader UE, a source access network device, or a target access network device.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA), or other available processors.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • programmed logic devices discrete gate or transistor logic devices, discrete hardware components.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • This application also provides a computer-readable medium.
  • Computer programs or instructions are stored in the storage medium.
  • the computer program or instructions are executed by the communication device, the functions of any of the above method embodiments are realized.
  • This application also provides a computer program product including instructions.
  • the computer reads and executes the computer program product, the computer implements the functions of any of the above method embodiments.
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer instructions When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • 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, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, solid state disk, SSD)) etc.

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Abstract

本申请提供一种信息传输方法及通信装置，该方法包括：接收源接入网设备发送的第一信息，该第一信息用于确定第一RA-RNTI和第一波束，该第一RA-RNTI用于加扰第一PDCCH，该第一PDCCH用于承载msg2的调度信息，该第一波束用于传输msg1和msg2；基于第一信息确定第一RA-RNTI和第一波束；接收目标接入网设备广播的第一PDCCH；基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息；基于msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。基于本申请提供的方法，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。

Description

一种信息传输方法及通信装置
本申请要求于2022年05月27日提交中国专利局、申请号为202210584139.X、申请名称为“一种信息传输方法及通信装置”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
本申请涉及通信技术领域，尤其涉及一种信息传输方法及通信装置。
背景技术
在移动通信系统中，在基本的切换流程中，连接态用户设备(user equipment，UE)的移动性管理是由接入网设备控制的，即接入网设备通过发送切换消息指示UE切换到哪个小区以及如何进行切换。例如，现有的小区切换流程可如图1所示。其中：
101、源基站发送无线资源控制(radio resource control，RRC)重配消息给连接态的UE。例如，该RRC重配消息可包含测量对象、报告配置、测量标识等参数。
102、UE根据RRC重配置消息对一系列小区进行测量后，形成测量报告上报给当前连接的源基站。
103、源基站接收测量报告之后，确定UE是否需要进行小区切换。
104、如要确定UE需要进行小区切换，则源基站将发切换请求消息给目标基站。
105、目标基站接收切换请求之后，根据自身连接数等情况确定是否允许UE的接入。
106、如果允许UE的接入，则目标基站发切换确认消息给源基站。例如，该切换确认消息包含目标小区的相关信息以及UE接入该目标小区所需的相关配置参数。
107、源基站接收目标基站发送的切换确认消息之后，发送RRC重配置消息(即切换命令)给UE。其中，该RRC重配置消息包含的内容来自步骤106的切换确认消息，相当于源基站透明。
108、UE接收RRC重配置消息之后，根据RRC重配置消息对目标基站发起随机接入。
现有的切换流程中，UE会断开与源基站的连接，在成功接入目标基站之前，UE收发数据会出现短暂的中断。
109、UE发送RRC重配置完成消息给目标基站。
110、目标基站接收RRC重配置完成消息之后，发送上下文释放消息给源基站，以让源基站释放该UE的上下文。
将上述步骤108的随机接入过程展开可如图2所示，其中：
201、UE使用SSB对应的波束1向目标基站发送消息1(msg1)。该msg1包括前导码。
具体地，UE可选择一个信号质量高于门限值的SSB，并使用波束1向目标基站发送msg1，该波束1为选择的SSB对应的波束。
202、目标基站接收msg1之后，使用波束1向UE发送消息2(msg2)。该msg2中包含该UE用于上行同步的时间提前量(timing advance,TA)信息和初始的上行资源分配信息(UL grant)。
目标基站发送msg2之前，还可发送用于调度msg2的PDCCH。该PDCCH通过随机接 入无线网络临时标识(random access radio network temporary identifier，RA-RNTI)加扰。目标基站接收msg1之后，可基于前导码的时频资源确定RA-RNTI。
相应地，UE也基于前导码的时频资源确定RA-RNTI。并通过RA-RNTI解扰PDCCH，以获取msg2的调度信息。UE基于msg2的调度信息，使用波束1接收msg2。
为了节省信令开销，目前提出了组切换技术(group handover，Group HO)。源基站可以将多个UE看作一个“组(Group)”，并以组为单位进行小区切换判决，在需要进行小区切换时，以组为单位向目标基站请求进行小区切换。源基站向目标基站发送组切换请求后，目标基站为组内所有的UE准备资源。
考虑到组内的UE之间距离接近，为节省信令开销，可以令组头UE发送msg1，非组头UE不发送msg1。非组头UE可直接接收msg2，该msg2包含组头UE的TA信息和所有UE的上行资源分配信息。非组头UE根据组头UE的TA信息进行上行同步。非组头UE如何准确接收组头UE的TA信息和非组头UE的上行资源分配信息是目前亟待解决的问题。
发明内容
本申请实施例提供一种信息传输方法及通信装置，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。
第一方面，本申请提供一种信息传输方法。可选的，该方法可以由非组头UE执行，也可以由非组头UE的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分非组头UE功能的逻辑模块或软件实现。该方法包括：
接收源接入网设备发送的第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载消息(msg)2的调度信息，该第一波束用于传输msg1和msg2，该msg1包括前导码，该msg2包括UE组内的组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；基于第一信息确定第一RA-RNTI和第一波束；接收目标接入网设备广播的经过第一RA-RNTI加扰的第一PDCCH；基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息；基于msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。
可见，基于第一方面所描述的方法，非组头UE可以获取到第一RA-RNTI和传输msg2的第一波束，从而可以基于第一RA-RNTI解析第一PDCCH得到msg2的调度信息，进而基于msg2的调度信息和第一波束，接收msg2。msg2中包括组头UE的TA信息和非组头UE的上行资源分配信息。因此，基于第一方面所描述的方法，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，接收源接入网设备发送的第一信息的具体实施方式为：接收源接入网设备通过无线资源控制(RRC)消息发送的第一信息。通过RRC消息发送第一信息对现有协议修改较小。
在一种可能的实现中，接收源接入网设备发送的第一信息的具体实施方式为：接收源接入网设备广播的第二PDCCH，该第二PDCCH由UE组的G-RNTI加扰，该第二PDCCH用于承载第一信息的调度信息；基于所述UE组的G-RNTI对所述第二PDCCH进行解扰，得到所述第一信息的调度信息；基于第一信息的调度信息接收源接入网设备广播的第一信息。通过广播的方式发送第一信息，能够节省信令开销。
在一种可能的实现中，接收源接入网设备发送的第一信息之后，还可向源接入网设备发送第三信息，该第三信息指示非组头UE已接收到第一信息。通过向向源接入网设备指示非组头UE已接收到第一信息，从而源接入网设备可以在所有非组头UE都接收到第一信息时通知目标接入网设备可以发送第一PDCCH和msg2。从而避免目标接入网设备过早发送第一PDCCH和msg2，导致非组头UE无法成功接收第一PDCCH和msg2。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。基于该可能的实现方式，有利于非组头UE准确地确定第一RA-RNTI和第一波束。
在一种可能的实现中，接收源接入网设备发送的第一信息之前，还可接收源接入网设备发送的第二命令；其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。基于该可能的实现方式，可以通过第二命令通知哪些UE为非组头UE，这样非组头UE就可以执行相应的操作。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，非组头UE可获取到G-RNTI，从而后续可基于G-RNTI解析第二PDCCH，得到第一信息的调度信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
第二方面，本申请提供一种信息传输方法。可选的，该方法可以由源接入网设备执行，也可以由源接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分源接入网设备功能的逻辑模块或软件实现。该方法包括：
接收目标接入网设备发送的第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载消息(msg)2的调度信息，该第一波束用于传输msg1和msg2，msg1包括前导码，该msg2包括UE组内的组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；向UE组中的非组头UE发送第一信息。
在一种可能的实现中，向UE组中的非组头UE发送第一信息的具体实施方式为：通过无线资源控制(RRC)消息向UE组中的非组头UE发送第一信息。
在一种可能的实现中，向UE组中的非组头UE发送第一信息的具体实施方式为：广播第二PDCCH，该第二PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，该第二PDCCH用于承载第一信息的调度信息；广播第一信息。
在一种可能的实现中，向UE组中的非组头UE发送第一信息之后，还可启动定时器；当定时器超时时，向目标接入网设备发送第二信息，该第二信息指示发送第一PDCCH和msg2。基于该可能的实现方式，可以避免目标接入网设备过早发送第一PDCCH和msg2，导致非组头UE无法成功接收第一PDCCH和msg2。
在一种可能的实现中，向UE组中的非组头UE发送第一信息之后，当接收到所有非组头UE发送的第三信息时，还可向目标接入网设备发送第二信息，该第二信息指示发送第一PDCCH和msg2，该第三信息指示非组头UE已接收到第一信息。基于该可能的实现方式， 可以避免目标接入网设备过早发送第一PDCCH和msg2，导致非组头UE无法成功接收第一PDCCH和msg2。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。
在一种可能的实现中，接收目标接入网设备发送的第一信息之前，还可执行以下步骤：向目标接入网设备发送组切换请求，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识；接收目标接入网设备发送的切换确认信息；向组头UE发送第一命令；向非组头UE发送第二命令；其中，第一命令和第二命令中均携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
第三方面，本申请提供一种信息传输方法。可选的，该方法可以由目标接入网设备执行，也可以由目标接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分目标接入网设备功能的逻辑模块或软件实现。该方法包括：
使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，msg1包括前导码；向源接入网设备发送第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，第一PDCCH用于承载msg2的调度信息，msg2包括组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；广播经过第一RA-RNTI加扰的第一PDCCH；通过第一波束广播msg2。
在一种可能的实现中，发送由第一RA-RNTI加扰的第一PDCCH之前，还可接收源接入网设备发送的第二信息，该第二信息指示发送第一PDCCH和msg2。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。
在一种可能的实现中，使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，还可接收源接入网设备发送的组切换请求，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识；以及向源接入网设备发送切换确认信息。
第二方面和第三方面的有益效果可参见第一方面对应的有益效果，在此不赘述。
第四方面，本申请提供一种信息传输方法。可选的，该方法可以由非组头UE执行，也可以由非组头UE的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分非组头UE功能的逻辑模块或软件实现。该方法包括：
接收目标接入网设备广播的经过UE组的组移动用户临时标识(G-RNTI)加扰的第一PDCCH，该第一PDCCH用于承载第一信息的调度信息；基于G-RNTI对第一PDCCH进行解扰，得到该第一信息的调度信息；基于该第一信息的调度信息，接收目标接入网设备广播的第一信息，该第一信息包括UE组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息。
基于第四方面所描述的方法，目标接入网设备可以基于G-RNTI广播UE组中的组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。从而非组头UE可基于G-RNTI接收组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。
在一种可能的实现中，还可接收源接入网设备发送的第二命令，该第二命令携带UE组的G-RNTI；其中，第二命令中还携带组头UE的标识；或者，第二命令还携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。基于该可能的实现方式，可以通过第二命令通知哪些UE为非组头UE，这样非组头UE就可以执行相应的操作。并且可以通过第二命令指示UE组的G-RNTI，后续可基于G-RNTI对第一PDCCH进行解扰，得到该第一信息的调度信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
第五方面，本申请提供一种信息传输方法。可选的，该方法可以由目标接入网设备执行，也可以由目标接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分目标接入网设备功能的逻辑模块或软件实现。该方法包括：
使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，msg1包括前导码；通过第一波束广播msg2；广播第一PDCCH，该第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，该第一PDCCH用于承载第一信息的调度信息；广播第一信息，该第一信息包括组头UE的时间提前量(TA)信息和UE组内的所有非组头UE的上行资源分配信息。
在一种可能的实现中，使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，还可接收源接入网设备发送的组切换请求，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识和UE组的G-RNTI；以及向源接入网设备发送切换确认信息。
第六方面，本申请提供一种信息传输方法。可选的，该方法可以由源接入网设备执行，也可以由源接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分源接入网设备功能的逻辑模块或软件实现。该方法包括：
向目标接入网设备发送组切换请求，该组切换请求用于请求对UE组进行小区切换，组切换请求中携带UE组中的组头UE的标识和UE组的G-RNTI；接收目标接入网设备发送的切换确认信息；向组头UE发送第一命令；向非组头UE发送第二命令，第二命令携带UE组的G-RNTI；其中，第一命令和第二命令中还携带组头UE的标识；或者，第一命令还携带用于指示收到第一命令的UE为组头UE的信息，第二命令还携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
第五方面和第六方面的有益效果可参见第四方面对应的有益效果，在此不赘述。
第七方面，本申请提供一种信息传输方法。可选的，该方法可以由非组头UE执行，也可以由非组头UE的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分非组头UE功能的逻辑模块或软件实现。该方法包括：
接收源接入网设备发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
基于第七方面所描述的方法，非组头UE可从源接入网设备准确接收到UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，接收源接入网设备发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息的具体实施方式为：接收源接入网设备通过无线资源控制(RRC)消息发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，接收源接入网设备发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息的具体实施方式为：接收源接入网设备广播的第一PDCCH，该第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，该第一PDCCH用于承载第一信息的调度信息，该第一信息包括UE组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息；使用G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息；基于第一信息的调度信息，接收源接入网设备广播第一信息。
在一种可能的实现中，还可接收源接入网设备发送的第二命令；其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。基于该可能的实现方式，可以通过第二命令通知哪些UE为非组头UE，这样非组头UE就可以执行相应的操作。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，可以通过第二命令指示UE组的G-RNTI，后续可基于G-RNTI对第一PDCCH进行解扰，得到该第一信息的调度信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。在该可能的实现方式中，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
第八方面，本申请提供一种信息传输方法。可选的，该方法可以由源接入网设备执行，也可以由源接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分源接入网设备功能的逻辑模块或软件实现。该方法包括：
接收目标接入网设备发送的第一信息，该第一信息包括用户设备(UE)组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息；向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息的具体实施方式为：通过无线资源控制(RRC)消息向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息的具体实施方式为：广播第一PDCCH，该第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，该第一PDCCH用于承载第一信息的调度信息；广播第一信息。
在一种可能的实现中，该方法还包括：向目标接入网设备发送组切换请求，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带UE组中的组头UE的标识；接收目标接入网设备发送的切换确认信息；向组头UE发送第一命令；向非组头UE发送第二命令；其中，第一命令和第二命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一 命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
第九方面，本申请提供一种信息传输方法。可选的，该方法可以由目标接入网设备执行，也可以由目标接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分目标接入网设备功能的逻辑模块或软件实现。该方法包括：
使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，该msg1包括前导码；使用第一波束广播msg2；向源接入网设备发送第一信息，该第一信息包括组头UE的时间提前量(TA)信息和UE组中所有非组头UE的上行资源分配信息。
在一种可能的实现中，使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，还可接收源接入网设备发送的组切换请求，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识；以及向源接入网设备发送切换确认信息。
第八方面和第九方面的有益效果可参见第七方面对应的有益效果，在此不赘述。
第十方面，本申请提供一种信息传输方法。可选的，该方法可以由源接入网设备执行，也可以由源接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分源接入网设备功能的逻辑模块或软件实现。该方法包括：向UE组中的组头UE发送第一命令；向UE组中的组头UE发送第二命令；其中，第一命令和第二命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。基于该可能的实现方式，可以通过第一命令准确地通知哪个UE为组头UE，这样组头UE就可以执行相应的操作，以及可以第二命令准确地通知哪些UE为非组头UE，这样非组头UE就可以执行相应的操作。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，可以通过第二命令指示UE组的G-RNTI，以便后续可基于G-RNTI接收UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
第十一方面，本申请提供一种信息传输方法。可选的，该方法可以由非组头UE执行，也可以由非组头UE的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分非组头UE功能的逻辑模块或软件实现。该方法包括：
接收源接入网设备发送的第二命令；
其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
第十二方面，本申请提供一种信息传输方法。可选的，该方法可以由组头UE执行，也可以由组头UE的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分组头UE功能的逻辑模块或软件实现。该方法包括：
接收源接入网设备发送的第一命令；
其中，第一命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息；或者，第一命令和源接入网设备发送给非组头UE的第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
第十一方面和第十二方面的有益效果可参见第十方面对应的有益效果，在此不赘述。
第十三方面，本申请提供一种UE组确定方法。可选的，该方法可以由源接入网设备执行，也可以由源接入网设备的部件(例如处理器、芯片、或芯片系统等)执行，还可以由能实现全部或部分源接入网设备功能的逻辑模块或软件实现。该方法包括：
接收多个UE的测量报告；基于多个用户设备(UE)的测量报告从多个UE中确定多个第二UE，第二UE对应的测量报告指示邻区信号质量比服务小区信号质量高于第一门限，或服务小区信号质量低于第二门限且邻区信号质量高于第三门限；基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组。
基于该可能的实现方式，能够准确地划分需要进行小区切换的UE组。
在一种可能的实现中，基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组的具体实施方式为：若多个第二UE的位置的离散程度小于或等于第四门限，则将多个第二UE划分为一个UE组；若多个第二UE的位置的离散程度大于第四门限，则不将多个第二UE划分为一个UE组。
UE的离散程度较大，则认为它们相隔较远，不适合采用组切换技术。因此，基于该可能的实现方式，能够合理地划分需要进行小区切换的UE组。
在一种可能的实现中，在UE组中，组头UE距离UE组的中心位置最近。
在一种可能的实现中，该方法还包括：基于第二UE对应的最佳波束和时间提前量(TA)信息确定第二UE的位置。基于该可能的实现方式，能够准确地确定第二UE的位置。
第十四方面，本申请提供了一种通信装置，该通信装置可以是非组头UE或源接入网设备或目标接入网设备，也可以是非组头UE或源接入网设备或目标接入网设备中的装置，或者是能够和非组头UE或源接入网设备或目标接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。该通信装置可执行第一方面～第十三方面中任意一方面所述的方法。该通信装置的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功能相对应的单元或模块。该单元或模块可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第一方面～第十三方面中任意一方面所述的方法以及有益效果。
第十五方面，本申请提供了一种通信装置，通信装置包括处理器，当处理器调用存储器中的计算机程序时，如第一方面～第十三方面中任意一方面所述的方法被执行。
第十六方面，本申请提供了一种通信装置，通信装置包括处理器和存储器，处理器和存储器耦合；处理器用于实现如第一方面～第十三方面中任意一方面所述的方法。
第十七方面，本申请提供了一种通信装置，通信装置包括处理器、存储器和收发器，处理器和存储器耦合；收发器用于收发数据，处理器用于实现如第一方面～第十三方面中任意一 方面所述的方法。
第十八方面，本申请提供了一种通信装置，通信装置包括处理器和接口，该接口用于接收或输出信号，处理器用于通过逻辑电路或执行代码指令实现如第一方面～第十三方面中任意一方面所述的方法。
第十九方面，本申请提供了一种计算机可读存储介质，存储介质中存储有计算机程序或指令，当计算机程序或指令被通信装置执行时，实现如第一方面～第十三方面中任意一方面所述的方法。
第二十方面，本申请提供一种包括指令的计算机程序产品，当计算机读取并执行计算机程序产品时，使得计算机执行如第一方面～第十三方面中任意一方面所述的方法。
附图说明
图1为本申请提供的现有的一种小区切换方法的流程示意图；
图2为本申请提供的现有的一种随机接入方法的流程示意图；
图3为本申请提供的一种系统架构的示意图；
图4为本申请提供的一种信息传输方法的流程示意图；
图5为本申请提供的一种信息传输方法的流程示意图；
图6为本申请提供的一种信息传输方法的流程示意图；
图7为本申请提供的一种信息传输方法的流程示意图；
图8为本申请提供的一种信息传输方法的流程示意图；
图9为本申请提供的一种信息传输方法的流程示意图；
图10为本申请提供的一种信息传输方法的流程示意图；
图11为本申请提供的一种信息传输方法的流程示意图；
图12为本申请提供的一种UE组确定方法的流程示意图；
图13为本申请提供的一种通信装置的结构示意图；
图14为本申请提供的一种通信装置的结构示意图；
图15为本申请提供的一种芯片的结构示意图。
具体实施方式
下面结合附图对本申请具体实施例作进一步的详细描述。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于描述关联对象的关联关系，表示 可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
为了更好地理解本申请实施例，下面首先对本申请实施例涉及的系统架构进行介绍：
本申请实施例的技术方案可以应用于各种通信系统，例如：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、第五代(5th generation，5G)系统或新无线(new radio，NR)以及未来的通信系统等。
请参见图3，图3是本申请实施例提供的一种系统架构的示意图。如图3所示，该系统架构包括UE组、源接入网设备和目标接入网设备。
下面分别对图3中系统架构所涉及的UE组、源接入网设备和目标接入网设备进行介绍。
一、源接入网设备
源接入网设备是UE组的服务小区中的接入网设备。
接入网设备与终端设备之间的接口可以为Uu接口(或称为空口)。当然，在未来通信中，这些接口的名称可以不变，或者也可以用其它名称代替，本申请对此不限定。
接入网设备即为将终端设备接入到无线网络的节点或设备。接入网设备可以是任意一种具有无线收发功能的设备，包括但不限于：LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或传输接收点(Transmission ReceptionPoint，TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的TRP。接入网设备还可以是云无线接入网(Cloud Radio Access Network，CRAN)场景下的无线控制器、集中单元(Central Unit，CU)，和/或分布单元(Distributed Unit，DU)。接入网设备还可以是服务器，可穿戴设备，或车载设备等。以下以接入网设备为基站为例进行说明。所述多个接入网设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端设备进行通信，也可以通过中继站与终端设备进行通信。终端设备可以与不同技术的多个基站进行通信，例如，终端设备可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
二、目标接入网设备
目标接入网设备是邻区信号比服务小区信号高于第一门限，或服务小区信号低于第二门限且邻区信号高于第三门限时，UE组想要接入的小区中的接入网设备。关于接入网设备的描述可参见源接入网设备下对接入网设备的描述，在此不赘述。
三、UE组
UE组中包括多个UE。可以以UE组为单位进行小区切换，即源接入网设备可以将多个 UE看作一个“组(Group)”，并以组为单位进行小区切换判决，在需要进行小区切换时，以组为单位向目标接入网设备请求进行小区切换。源接入网设备向目标接入网设备发送组切换请求后，目标接入网设备为UE组内所有的UE准备资源。其中，UE组中有一个UE为组头UE，其他UE为非组头UE。
在源接入网设备向UE组内的所有UE发送用于小区切换的切换命令之后，组头UE需要向目标接入网设备发送msg1(消息1)，以及接收目标接入网设备发送的msg2，该msg2包含组头UE的TA信息和所有UE的上行资源分配信息。非组头UE不需要发送msg1，可直接接收该msg2。也就是说，组头UE需要进行随机接入，非组头UE不需要进行随机接入。
UE包括向用户提供语音和/或数据连通性的设备，例如UE是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(VR)UE、增强现实(AR)UE、工业控制(industrial control)中的无线终端、车载UE、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、可穿戴UE等等。本申请的实施例对应用场景不做限定。UE有时也可以称为终端、接入UE、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程UE、移动设备、终端设备、无线通信设备、UE代理或UE装置等。终端也可以是固定的或者移动的。本申请中后文用UE指代UE。
为了非组头UE能够准确地接收组头UE的TA信息和非组头UE的上行资源分配信息，本申请实施例提供了一种信息传输方法及通信装置。下面对本申请实施例提供的信息传输方法及通信装置进一步进行介绍：
请参见图4，图4是本申请实施例提供的一种信息传输方法的流程示意图。在图4所描述的方法中，非组头UE可以获取到第一RA-RNTI和传输msg2的第一波束，从而可以基于第一RA-RNTI解析第一PDCCH得到msg2的调度信息，进而基于msg2的调度信息和第一波束，接收msg2。msg2中包括组头UE的TA信息和非组头UE的上行资源分配信息。图4中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图4中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
401、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
其中，该msg1包括前导码。msg1用于随机接入。
可选的，UE可选择一个信号质量高于门限值的SSB，第一波束可以为选择的SSB对应的波束。SSB对应的波束是指传输该SSB的波束。SSB的标识与传输该SSB的波束之间具有对应关系。
402、目标接入网设备向源接入网设备发送第一信息。相应地，该源接入网设备可接收该第一信息。
其中，该第一信息用于确定第一随机接入无线网络临时标识(random access radio network  temporary identifier，RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载msg2的调度信息，该msg2包括组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息。msg2的调度信息可以为msg2的时频资源信息。
由于msg2的调度信息承载于第一PDCCH，且目标接入网设备采用第一波束发送msg2。因此，非组头UE接收msg2需要知道第一RA-RNTI和第一波束，才能基于第一RA-RNTI来解析第一PDCCH，得到msg2的调度信息，并基于msg2的调度信息，使用第一波束接收msg2。
因此，为了使非组头UE能够成功接收到msg2，目标接入网设备接收msg1之后，不立即发送第一PDCCH和msg2。而是先向源接入网设备发送第一信息，以便源接入网设备可以将第一信息发送至非组头UE。这样非组头UE就能基于第一信息确定第一RA-RNTI和第一波束。目标接入网设备向源接入网设备发送第一信息之后，再发送第一PDCCH和msg2。这样非组头UE就可在确定第一RA-RNTI和第一波束之后，基于第一RA-RNTI解析第一PDCCH得到msg2的调度信息，再基于msg2的调度信息和第一波束接收msg2。
403、源接入网设备向非组头UE发送第一信息。相应地，非组头UE可以接收该第一信息。
在一种可能的实现中，源接入网设备可通过以下两种方式中的一种向非组头UE发送第一信息。
方式一：源接入网设备通过无线资源控制(radio resource control，RRC)消息向UE组中的非组头UE发送第一信息。相应地，UE组内的非组头UE接收源接入网设备通过RRC消息发送的第一信息。
方式二：源接入网设备广播第二PDCCH，该第二PDCCH由UE组的组移动用户临时标识(group radio network temporary identifier，G-RNTI)加扰，该第二PDCCH用于承载第一信息的调度信息；源接入网设备广播第一信息。相应地，UE组内的非组头UE可接收源接入网设备广播的第二PDCCH，该第二PDCCH由UE组的G-RNTI加扰，该第二PDCCH用于承载第一信息的调度信息；非组头UE可基于第一信息的调度信息接收源接入网设备广播的第一信息。
每个小区组对应一个G-RNTI，G-RNTI用于区分小区组。因此，可以通过G-RNTI来加扰第二PDCCH，这样只有G-RNTI对应的小区组中的UE才能成功对第二PDCCH进行解扰，得到第一信息的调度信息。进而G-RNTI对应的小区组中的非组头UE可基于第一信息的调度信息，接收源接入网设备广播的第一信息。
404、非组头UE基于第一信息确定第一RA-RNTI和第一波束。
本申请实施例中，非组头UE接收第一信息之后，基于第一信息确定第一RA-RNTI和第一波束。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(physical random access channel，PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(synchronization signal and PBCH block，SSB)的标识。基于该可能的实现方式，有利于非组头UE准确地确定第一RA-RNTI和第一波束。
非组头UE可基于第一RA-RNTI、PRACH资源、前导码、第一波束的标识和第一波束对应的SSB的标识中的任意一个参数确定第一RA-RNTI。
例如，假设第一信息指示前导码对应的PRACH资源。非组头UE可基于PRACH资源计 算得到第一RA-RNTI。
假设第一信息指示前导码。由于PRACH资源、前导码、第一波束、SSB的标识之间具有对应关系，那么非组头UE可基于前导码确定PRACH资源，再基于PRACH资源计算得到第一RA-RNTI。
假设第一信息指示第一波束的标识。由于PRACH资源、前导码、第一波束、SSB的标识之间具有对应关系，那么非组头UE可基于第一波束的标识确定PRACH资源，再基于PRACH资源计算得到第一RA-RNTI。
假设第一信息指示SSB的标识。由于PRACH资源、前导码、第一波束、SSB的标识之间具有对应关系，那么非组头UE可基于SSB的标识确定PRACH资源，再基于PRACH资源计算得到第一RA-RNTI。
由于PRACH资源、前导码、第一波束、SSB的标识之间具有对应关系，因此非组头UE可基于PRACH资源、前导码、第一波束的标识或第一波束对应的SSB的标识中的任意一个参数确定第一波束。
405、目标接入网设备广播经过第一RA-RNTI加扰的第一PDCCH。相应地，组头UE和非组头UE可接收目标接入网设备广播的经过该第一RA-RNTI加扰的第一PDCCH。
本申请实施例中，目标接入网设备可基于PRACH资源来计算第一RA-RNTI。目标接入网设备向源接入网设备发送第一信息之后，广播经过第一RA-RNTI加扰的第一PDCCH。
406、非组头UE基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息。
本申请实施例中，非组头UE接收该第一PDCCH之后，基于第一RA-RNTI对第一PDCCH进行解扰，以得到msg2的调度信息，以便后续可基于msg2的调度信息接收msg2。
同理，组头UE接收该第一PDCCH之后，也可基于第一RA-RNTI对第一PDCCH进行解扰，以得到msg2的调度信息，以便后续可基于msg2的调度信息接收msg2。组头UE可预先基于PRACH资源确定第一RA-RNTI。
407、目标接入网设备通过第一波束广播msg2。相应地，组头UE和非组头UE可基于第一PDCCH中的msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。
可见，基于图4所描述的方法，非组头UE可以获取到第一RA-RNTI和传输msg2的第一波束，从而可以基于第一RA-RNTI解析第一PDCCH得到msg2的调度信息，进而基于msg2的调度信息和第一波束，接收msg2。msg2中包括组头UE的TA信息和非组头UE的上行资源分配信息。因此，基于图4所描述的方法，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。
请参见图5，图5是本申请实施例提供的另一种信息传输方法的流程示意图。图5所描述的实施例是对图4所描述的实施例的改进。图5所描述的实施例中，目标接入网设备向源接入网设备发送第一信息之后，源接入网设备通知目标接入网设备可以发送第一PDCCH和msg2时，目标接入网设备才会发送第一PDCCH和msg2，从而避免目标接入网设备过早发送第一PDCCH和msg2，导致非组头UE无法成功接收第一PDCCH和msg2。图5中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图5中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
501、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
其中，该msg1包括前导码。msg1用于随机接入。
502、目标接入网设备向源接入网设备发送第一信息。相应地，该源接入网设备可接收该第一信息。
其中，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载msg2的调度信息，该msg2包括组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息。
503、源接入网设备向非组头UE发送第一信息。相应地，非组头UE可以接收该第一信息。
步骤501～步骤503的说明可参见图4所描述的实施例中的说明，在此不赘述。
504、源接入网设备启动定时器。
本申请实施例中，源接入网设备向非组头UE发送第一信息之后，启动定时器。
505、非组头UE基于第一信息确定第一RA-RNTI和第一波束。
步骤505的说明可参见图4所描述的实施例中的说明，在此不赘述。
506、非组头UE向源接入网设备发送第三信息，该第三信息指示非组头UE已接收到第一信息。相应地，源接入网设备可以接收该第三信息。
本申请实施例中，非组头UE接收第一信息之后，向源接入网设备发送第三信息。可先执行步骤505，再执行步骤506，或者可先执行步骤506，再执行步骤505。
507、当定时器超时时或接收到所有非组头UE发送的第三信息时，源接入网设备向目标接入网设备发送第二信息，该第二信息指示发送第一PDCCH和msg2。相应地，目标接入网设备可以接收该第二信息。
在一种可能的实现中，也可以执行步骤504，不执行步骤506。当定时器超时时源接入网设备向目标接入网设备发送第二信息，该第二信息指示发送第一PDCCH和msg2。
在一种可能的实现中，也可以执行步骤506，不执行步骤504。当源接入网设备接收到所有非组头UE发送的第三信息时，源接入网设备向目标接入网设备发送第二信息。图5以步骤504和步骤506均执行为例。
本申请实施例中，目标接入网设备接收第二信息之后，执行步骤508。
508、目标接入网设备广播经过第一RA-RNTI加扰的第一PDCCH。相应地，组头UE和非组头UE可接收目标接入网设备广播的经过该第一RA-RNTI加扰的第一PDCCH。
509、非组头UE基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息。
510、目标接入网设备通过第一波束广播msg2。相应地，组头UE和非组头UE可基于第一PDCCH中的msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。
步骤508～步骤510的说明可参见图4所描述的实施例中的说明，在此不赘述。
可见，基于图5所描述的方法，有利于避免目标接入网设备过早发送第一PDCCH和msg2，导致非组头UE无法成功接收第一PDCCH和msg2。
请参见图6，图6是本申请实施例提供的一种信息传输方法的流程示意图。图6所描述的实施例是对图5所描述的实施例的改进。图6所描述的实施例中，源接入网设备可通知哪个UE是组头UE，哪些UE为非组头UE，以便组头UE和非组头UE执行相应的操作。图6 中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图6中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
601、源接入网设备向目标接入网设备发送组切换请求。相应地，目标接入网设备可以接收该组切换请求。
其中，该组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识。也就说是，组切换请求可以向目标接入网设备指示哪个UE为组头UE。
可选的，组头UE的标识可以为组头UE的小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)。或者，组头UE的标识还可以是其他可以表示组头UE的信息。
通过向目标接入网设备指示组头UE，后续目标接入网设备接收到msg1后，才能识别该msg1是否为组头UE发送的。如果该msg1为组头UE发送的，目标接入网设备才向源接入网设备发送第一信息。
602、目标接入网设备向源接入网设备发送切换确认信息。相应地，源接入网设备可以接收该切换确认信息。
603、源接入网设备向组头UE发送第一命令。相应地，组头UE可以接收该第一命令。
604、源接入网设备向非组头UE发送第二命令。相应地，非组头UE可以接收该第二命令。
在一种可能的实现中，第一命令和第二命令中均携带组头UE的标识。可选的，第一命令和第二命令可以相同。
在另一种可能的实现中，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息。可选的，第一命令和第二命令的名称可以相同，且都携带第一信元。第一命令中的第一信元用于指示收到第一命令的UE为非组头UE。第二命令中的第一信元用于指示收到第二命令的UE为非组头UE。第一命令中的第一信元和第二命令中的第一信元的取值不同。例如，第一命令中的第一信元的取值为1，第二命令中的第一信元的取值为0。或者，第一命令中的第一信元的取值为0，第二命令中的第一信元的取值为1。
在又一种可能的实现中，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。也就是说，通过向不同类型的UE发送不同名称的命令，来指示接收命令的UE是否为组头UE。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。也就是说，第一命令和第二命令可以为切换命令。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
在另一种可能的实现中，第一命令和第二命令也可以不是切换命令。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，可以通过第二命令指示UE组的G-RNTI，以便后续可基于G-RNTI接收UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
605、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
其中，该msg1包括前导码。msg1用于随机接入。
606、目标接入网设备向源接入网设备发送第一信息。相应地，该源接入网设备可接收该第一信息。
其中，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载msg2的调度信息，该msg2包括组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息。
607、源接入网设备向非组头UE发送第一信息。相应地，非组头UE可以接收该第一信息。
608、源接入网设备启动定时器。
609、非组头UE基于第一信息确定第一RA-RNTI和第一波束。
本申请实施例中，非组头UE接收第一信息之后，基于第一信息确定第一RA-RNTI和第一波束。
610、非组头UE向源接入网设备发送第三信息，该第三信息指示非组头UE已接收到第一信息。相应地，源接入网设备可以接收该第三信息。
本申请实施例中，非组头UE接收第一信息之后，向源接入网设备发送第三信息。
611、当定时器超时时或接收到所有非组头UE发送的第三信息时，源接入网设备向目标接入网设备发送第二信息，该第二信息指示发送第一PDCCH和msg2。相应地，目标接入网设备可以接收该第二信息。目标接入网设备接收第二信息之后，执行步骤612。
612、目标接入网设备广播经过第一RA-RNTI加扰的第一PDCCH。相应地，组头UE和非组头UE可接收目标接入网设备广播的经过该第一RA-RNTI加扰的第一PDCCH。
613、非组头UE基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息。
614、目标接入网设备通过第一波束广播msg2。相应地，组头UE和非组头UE可基于第一PDCCH中的msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。
其中，步骤605～步骤614的说明可参见图4和图5所描述的实施例中的说明，在此不赘述。
在一种可能的实现中，图6中的步骤608、步骤610和步骤611也可不执行。图6以执行步骤608、步骤610和步骤611为例。
可见基于图6所描述的方法，可以通过第一命令和第二命令准确地通知哪个UE为组头UE，这样组头UE和非组头UE就可以执行相应的操作。
请参见图7，图7是本申请实施例提供的另一种信息传输方法的流程示意图。图7所描述的方法为与图4所描述的方法并列的方案。在图7中，目标接入网设备可以基于G-RNTI广播UE组中的组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。从而非组头UE可基于G-RNTI接收组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。图7中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图7中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
701、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
步骤701的说明可参见步骤401的说明，在此不赘述。
702、目标接入网设备通过第一波束广播msg2。相应地，组头UE可基于msg2的调度信息，使用第一波束接收msg2。
本申请实施例中，目标接入网设备接收msg1之后，还可以广播第二PDCCH，该第二PDCCH承载msg2的调度信息。目标接入网设备广播第二PDCCH之后，通过第一波束广播msg2。
703、目标接入网设备广播第一PDCCH。相应地，非组头UE可接收该第一PDCCH。
其中，该第一PDCCH由UE组的G-RNTI加扰，该第一PDCCH用于承载第一信息的调度信息。该第一信息包括组头UE的TA信息和UE组内的所有非组头UE的上行资源分配信息。
每个小区组对应一个G-RNTI，G-RNTI用于区分小区组。因此，可以通过G-RNTI来加扰第一PDCCH，这样只有G-RNTI对应的小区组中的UE才能成功对第一PDCCH进行解扰，得到第一信息的调度信息。进而G-RNTI对应的小区组中的非组头UE可基于第一信息的调度信息，接收目标接入网设备广播的第一信息。
704、非组头UE基于G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息。
本申请实施例中，非组头UE接收第一PDCCH之后，基于G-RNTI对第一PDCCH进行解扰，以得到第一信息的调度信息，以便后续基于第一信息的调度信息接收第一信息。
705、目标接入网设备广播第一信息。相应地，非组头UE基于第一PDCCH中的第一信息的调度信息，接收目标接入网设备广播的第一信息。
可见，基于图7所描述的方法，目标接入网设备可以基于G-RNTI广播UE组中的组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。从而非组头UE可基于G-RNTI接收组头UE的TA信息和UE组中的所有非组头UE的上行资源分配信息。因此，基于图7所描述的方法，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。
请参见图8，图8是本申请实施例提供的一种信息传输方法的流程示意图。图8所描述的实施例是对图7所描述的实施例的改进。图6所描述的实施例中，源接入网设备可通知哪个UE是组头UE，哪些UE为非组头UE，以便组头UE和非组头UE执行相应的操作。图8中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图8中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
801、源接入网设备向目标接入网设备发送组切换请求。相应地，目标接入网设备可以接收该组切换请求。
其中，该组切换请求用于请求对UE组进行小区切换，组切换请求中携带UE组中的组头UE的标识和UE组的G-RNTI。也就说是，组切换请求可以向目标接入网设备指示哪个UE为组头UE。
可选的，组头UE的标识可以为组头UE的C-RNTI。或者，组头UE的标识还可以是其他可以表示组头UE的信息。
通过向目标接入网设备指示组头UE，后续目标接入网设备接收到msg1后，才能识别该 msg1是否为组头UE发送的。如果该msg1为组头UE发送的，目标接入网设备才向源接入网设备发送第一信息。
通过向目标接入网设备指示UE组的G-RNTI，目标接入网设备后续可以基于G-RNTI加扰第一PDCCH。
802、目标接入网设备向源接入网设备发送切换确认信息。相应地，源接入网设备可以接收该切换确认信息。
803、源接入网设备向组头UE发送第一命令。相应地，组头UE可以接收该第一命令。
804、源接入网设备向非组头UE发送第二命令。相应地，非组头UE可以接收该第二命令。
其中，第二命令携带UE组的G-RNTI。通过第二命令指示UE组的G-RNTI，以便后续可基于G-RNTI解扰第一PDCCH。
在一种可能的实现中，第一命令和第二命令中均携带组头UE的标识。可选的，第一命令和第二命令可以相同。
在另一种可能的实现中，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息。可选的，第一命令和第二命令的名称可以相同，且都携带第一信元。第一命令中的第一信元用于指示收到第一命令的UE为非组头UE。第二命令中的第一信元用于指示收到第二命令的UE为非组头UE。第一命令中的第一信元和第二命令中的第一信元的取值不同。例如，第一命令中的第一信元的取值为1，第二命令中的第一信元的取值为0。或者，第一命令中的第一信元的取值为0，第二命令中的第一信元的取值为1。
在又一种可能的实现中，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。也就是说，通过向不同类型的UE发送不同名称的命令，来指示接收命令的UE是否为组头UE。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。也就是说，第一命令和第二命令可以为切换命令。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
在另一种可能的实现中，第一命令和第二命令也可以不是切换命令。
805、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
806、目标接入网设备通过第一波束广播msg2。相应地，组头UE可基于msg2的调度信息，使用第一波束接收msg2。
807、目标接入网设备广播第一PDCCH。相应地，非组头UE可接收该第一PDCCH。
该第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，第一PDCCH用于承载第一信息的调度信息。第一信息包括组头UE的时间提前量(TA)信息和UE组内的所有非组头UE的上行资源分配信息。
808、非组头UE基于G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息。
本申请实施例中，非组头UE接收第一PDCCH之后，基于G-RNTI对第一PDCCH进行解扰，以得到第一信息的调度信息，以便后续基于第一信息的调度信息接收第一信息。
809、目标接入网设备广播第一信息。相应地，非组头UE基于第一PDCCH中的第一信息的调度信息，接收目标接入网设备广播的第一信息。
步骤805～步骤809的说明可参见图7所描述的实施例中的说明，在此不赘述。
可见基于图8所描述的方法，可以通过第一命令和第二命令准确地通知哪个UE为组头UE，这样组头UE和非组头UE就可以执行相应的操作。
请参见图9，图9是本申请实施例提供的一种信息传输方法的流程示意图。图9所描述的方法为与图4和图7所描述的方法并列的方案。在图9中，目标接入网设备可以将组头UE的TA信息和所有非组头UE的上行资源分配信息发送给源接入网设备，由源接入网设备将组头UE的TA信息和非组头UE的上行资源分配信息发送给非组头UE。图9中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图9中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
901、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
902、目标接入网设备使用第一波束广播msg2。相应地，组头UE可基于msg2的调度信息，使用第一波束接收msg2。
本申请实施例中，目标接入网设备接收msg1之后，还可以广播第二PDCCH，该第二PDCCH承载msg2的调度信息。目标接入网设备广播第二PDCCH之后，通过第一波束广播msg2。
903、目标接入网设备向源接入网设备发送第一信息，该第一信息包括组头UE的TA信息和UE组中所有非组头UE的上行资源分配信息。相应地，源接入网设备可接收该第一信息。
904、源接入网设备向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。相应地，非组头UE可接收源接入网设备发送的组头UE的TA信息和非组头UE的上行资源分配信息。
本申请实施例中，源接入网设备接收该第一信息之后，向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，源接入网设备可通过以下两种方式中的一种向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
方式一：源接入网设备通过RRC消息向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。相应地，UE组内的非组头UE接收源接入网设备通过RRC消息发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
方式二：源接入网设备广播第一PDCCH，该第一PDCCH由UE组的G-RNTI加扰，该第一PDCCH用于承载第一信息的调度信息；源接入网设备广播第一信息。相应地，非组头UE接收源接入网设备广播的第一PDCCH；非组头UE使用G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息；非组头UE基于第一PDCCH中的第一信息的调度信息，接收源接入网设备广播第一信息。
每个小区组对应一个G-RNTI，G-RNTI用于区分小区组。因此，可以通过G-RNTI来加扰第一PDCCH，这样只有G-RNTI对应的小区组中的UE才能成功对第一PDCCH进行解扰，得到第一信息的调度信息。进而G-RNTI对应的小区组中的非组头UE可基于第一信息的调度信息，接收源接入网设备广播的第一信息。
可见，基于图9所描述的方法，目标接入网设备可以将组头UE的TA信息和所有非组头UE的上行资源分配信息发送给源接入网设备，由源接入网设备将组头UE的TA信息和非组头UE的上行资源分配信息发送给非组头UE。因此，基于图9所描述的方法，有利于非组头UE准确地接收组头UE的TA信息和非组头UE的上行资源分配信息。
请参见图10，图10是本申请实施例提供的一种信息传输方法的流程示意图。图10所描述的实施例是对图9所描述的实施例的改进。图9所描述的实施例中，源接入网设备可通知哪个UE是组头UE，哪些UE为非组头UE，以便组头UE和非组头UE执行相应的操作。图10中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图10中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
1001、源接入网设备向目标接入网设备发送组切换请求。相应地，目标接入网设备可以接收该组切换请求。
组切换请求用于请求对UE组进行小区切换，组切换请求中携带UE组中的组头UE的标识。也就说是，组切换请求可以向目标接入网设备指示哪个UE为组头UE。
可选的，组头UE的标识可以为组头UE的小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)。或者，组头UE的标识还可以是其他可以表示组头UE的信息。
通过向目标接入网设备指示组头UE，后续目标接入网设备接收到msg1后，才能识别该msg1是否为组头UE发送的。如果该msg1为组头UE发送的，目标接入网设备才向源接入网设备发送第一信息。
1002、目标接入网设备向源接入网设备发送切换确认信息。相应地，源接入网设备可以接收该切换确认信息。
1003、源接入网设备向组头UE发送第一命令。相应地，组头UE可接收第一命令。
1004、源接入网设备向非组头UE发送第二命令。相应地，非组头UE可接收第二命令。
在一种可能的实现中，第一命令和第二命令中均携带组头UE的标识。可选的，第一命令和第二命令可以相同。
在另一种可能的实现中，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息。可选的，第一命令和第二命令的名称可以相同，且都携带第一信元。第一命令中的第一信元用于指示收到第一命令的UE为非组头UE。第二命令中的第一信元用于指示收到第二命令的UE为非组头UE。第一命令中的第一信元和第二命令中的第一信元的取值不同。例如，第一命令中的第一信元的取值为1，第二命令中的第一信元的取值为0。或者，第一命令中的第一信元的取值为0，第二命令中的第一信元的取值为1。
在又一种可能的实现中，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。也就是说，通过向不同类型的UE发送不同名称的命令，来指示接收命令的UE是否为组头UE。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。也就是说，第一命令和第二命令可以为切换命令。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
在另一种可能的实现中，第一命令和第二命令也可以不是切换命令。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，可以通过第二命令指示UE组的G-RNTI，以便后续可基于G-RNTI接收UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
1005、组头UE采用第一波束向目标接入网设备发送msg1。相应地，该目标接入网设备可使用该第一波束接收该组头UE发送的该msg1。
1006、目标接入网设备使用第一波束广播msg2。相应地，组头UE可基于msg2的调度信息，使用第一波束接收msg2。
1007、目标接入网设备向源接入网设备发送第一信息，该第一信息包括组头UE的TA信息和UE组中所有非组头UE的上行资源分配信息。相应地，源接入网设备可接收该第一信息。
1008、源接入网设备向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。相应地，非组头UE可接收源接入网设备发送的组头UE的TA信息和非组头UE的上行资源分配信息。
步骤1005～步骤1008的说明可参见图9所描述的实施例中的说明，在此不赘述。
可见基于图10所描述的方法，可以通过第一命令和第二命令准确地通知哪个UE为组头UE，这样组头UE和非组头UE就可以执行相应的操作。
请参见图11，图11是本申请实施例提供的一种信息传输方法的流程示意图。图11中以组头UE、非组头UE、源接入网设备和目标接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图11中的组头UE、非组头UE、源接入网设备或目标接入网设备也可以是支持该组头UE、非组头UE、源接入网设备或目标接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现组头UE、非组头UE、源接入网设备或目标接入网设备的全部或部分功能的逻辑模块或软件。其中：
1101、源接入网设备向UE组中的组头UE发送第一命令。相应地，组头UE可接收第一命令。
1102、源接入网设备向UE组中的非组头UE发送第二命令。相应地，非组头UE可接收第二命令。
在一种可能的实现中，第一命令和第二命令中均携带组头UE的标识。可选的，第一命令和第二命令可以相同。
在另一种可能的实现中，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息。可选的，第一命令和第二命令的名称可以相同，且都携带第一信元。第一命令中的第一信元用于指示收到第一命令的UE为非组头UE。第二命令中的第一信元用于指示收到第二命令的UE为非组头UE。第一命令中的第一信元和第二命令中的第一信元的取值不同。例如，第一命令中的第一信元的取值为1，第二命令中的第一信元的取值为0。或者，第一命令中的第一信元的取值为0，第二命令中的第一信元的取值为1。
在又一种可能的实现中，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。也就是说，通过向不同类型的UE发送不同名称的命令，来指示接收命令的UE是否为组头UE。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。也就是说，第一命令和 第二命令可以为切换命令。基于该可能的实现方式，第一命令和第二命令既用于小区切换也用于指示非组头UE，可以避免增加额外的信令，节省信令开销。
在另一种可能的实现中，第一命令和第二命令也可以不是切换命令。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。基于该可能的实现方式，可以通过第二命令指示UE组的G-RNTI，以便后续可基于G-RNTI接收UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
基于图11所描述的方法，可以通过第一命令准确地通知哪个UE为组头UE，这样组头UE就可以执行相应的操作，以及可以第二命令准确地通知哪些UE为非组头UE，这样非组头UE就可以执行相应的操作。
请参见图12，图12是本申请实施例提供的一种UE组确定方法的流程示意图。图12中以源接入网设备作为该方法的执行主体为例，本申请并不限制该方法的执行主体。例如，图12中的源接入网设备也可以是支持源接入网设备实现该方法的芯片、芯片系统、或处理器，还可以是能实现源接入网设备的全部或部分功能的逻辑模块或软件。其中：
1201、源接入网设备接收多个UE的测量报告。
可选的，测量报告中可包括邻区信号质量和/或服务小区信号质量。
1202、源接入网设备基于多个UE的测量报告从多个UE中确定多个第二UE，该第二UE对应的测量报告指示邻区信号质量比服务小区信号质量高于第一门限，或服务小区信号质量低于第二门限且邻区信号质量高于第三门限。
举例来说，源接入网设备接收到UE1～UE5上报的测量报告。UE1～UE4对应的测量报告指示邻区信号质量比服务小区信号质量高于第一门限，或服务小区信号质量低于第二门限且邻区信号质量高于第三门限。UE5对应的测量报告指示邻区信号质量比服务小区信号质量小于或等于第一门限，或服务小区信号质量大于或等于第二门限且邻区信号质量小于第三门限。那么第二UE包括UE1～UE4。
1203、源接入网设备基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组。
本申请实施例中，源接入网设备确定多个第二UE之后，基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组。
在一种可能的实现中，源接入网设备可基于第二UE对应的最佳波束和TA信息确定第二UE的位置。基于该可能的实现方式，能够准确地确定第二UE的位置。
在一种可能的实现中，源接入网设备基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组的具体实施方式为：
若多个第二UE的位置之间的离散程度小于或等于第四门限，则将多个第二UE划分为一个UE组；若多个第二UE的位置之间的离散程度大于第四门限，则不将多个第二UE划分为一个UE组。
UE之间位置离散程度较大，则认为它们相隔较远，不适合采用组切换技术。因此，基于该可能的实现方式，能够合理地划分需要进行小区切换的UE组。
在一种可能的实现中，在UE组中，组头UE的位置距离UE组的中心位置最近。
在图12所描述的方法中，每个UE均向源接入网设备上报测量报告，源接入网设备基于多个UE上报的测量报告划分需要进行小区切换的UE组，并选择组头UE。图12可应用于交通工具(如公交车或地铁)上的乘客的UE与交通工具外的接入网设备进行通信的场景。
可选的，图12也可以与图4～图11所描述的方法相结合。即图4～图11中的源接入网设 备还可执行图12中的步骤。
可见，基于图12所描述的方法，能够准确地划分需要进行小区切换的UE组。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中非组头UE的部分或全部功能。该装置可以是非组头UE，也可以是非组头UE中的装置，或者是能够和非组头UE匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收源接入网设备发送的第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载消息(msg)2的调度信息，第一波束用于传输msg1和msg2，该msg1包括前导码，该msg2包括UE组内的组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；
处理单元1302，用于基于第一信息确定第一RA-RNTI和第一波束；通信单元1301，还用于接收目标接入网设备广播的经过第一RA-RNTI加扰的第一PDCCH；处理单元1302，还用于基于第一RA-RNTI对第一PDCCH进行解扰，得到msg2的调度信息；通信单元1301，还用于基于msg2的调度信息，通过第一波束接收目标接入网设备广播的msg2。
在一种可能的实现中，通信单元1301接收源接入网设备发送的第一信息的方式具体为：接收源接入网设备通过无线资源控制(RRC)消息发送的第一信息。
在一种可能的实现中，通信单元1301接收源接入网设备发送的第一信息的方式具体为：接收源接入网设备广播的第二PDCCH，该第二PDCCH由UE组的G-RNTI加扰，该第二PDCCH用于承载第一信息的调度信息；基于UE组的G-RNTI对第二PDCCH进行解扰，得到第一信息的调度信息；基于第一信息的调度信息接收源接入网设备广播的第一信息。
在一种可能的实现中，通信单元1301，还用于在接收源接入网设备发送的第一信息之后，向源接入网设备发送第三信息，该第三信息指示非组头UE已接收到第一信息。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。
在一种可能的实现中，通信单元1301，还用于在接收源接入网设备发送的第一信息之前，接收源接入网设备发送的第二命令；其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中源接入网设备的部分或全部功能。该装置可以是源接入网设备，也可以是源接入网设备中的装置，或者是能够和源接入网设备匹配使用的装置。 其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收目标接入网设备发送的第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载消息(msg)2的调度信息，第一波束用于传输msg1和msg2，该msg1包括前导码，该msg2包括UE组内的组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；通信单元1301，还用于向UE组中的非组头UE发送第一信息。
在一种可能的实现中，通信单元1301向UE组中的非组头UE发送第一信息的方式具体为：通过无线资源控制(RRC)消息向UE组中的非组头UE发送第一信息。
在一种可能的实现中，通信单元1301向UE组中的非组头UE发送第一信息的方式具体为：广播第二PDCCH，第二PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，第二PDCCH用于承载第一信息的调度信息；广播第一信息。
在一种可能的实现中，处理单元1302，用于在通信单元1301向UE组中的非组头UE发送第一信息之后，启动定时器；通信单元1301，还用于当定时器超时时，向目标接入网设备发送第二信息，第二信息指示发送第一PDCCH和msg2。
在一种可能的实现中，通信单元1301，还用于在向UE组中的非组头UE发送第一信息之后，当接收到所有非组头UE发送的第三信息时，向目标接入网设备发送第二信息，第二信息指示发送第一PDCCH和msg2，该第三信息指示非组头UE已接收到第一信息。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。
在一种可能的实现中，通信单元1301，还用于在接收目标接入网设备发送的第一信息之前，执行以下步骤：向目标接入网设备发送组切换请求，组切换请求用于请求对UE组进行小区切换，组切换请求中携带组头UE的标识；接收目标接入网设备发送的切换确认信息；向组头UE发送第一命令；向非组头UE发送第二命令；其中，第一命令和第二命令中均携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中目标接入网设备的部分或全部功能。该装置可以是目标接入网设备，也可以是目标接入网设备中的装置，或者是能够和目标接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接 收单元和发送单元。其中：
通信单元1301，用于使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，msg1包括前导码；
通信单元1301，还用于向源接入网设备发送第一信息，该第一信息用于确定第一随机接入无线网络临时标识(RA-RNTI)和第一波束，该第一RA-RNTI用于加扰第一物理下行控制信道(PDCCH)，该第一PDCCH用于承载msg2的调度信息，该msg2包括组头UE的时间提前量(TA)信息和UE组内所有UE的上行资源分配信息；通信单元1301，还用于广播经过第一RA-RNTI加扰的第一PDCCH；通信单元1301，还用于通过第一波束广播msg2。
在一种可能的实现中，通信单元1301，还用于在发送由第一RA-RNTI加扰的第一PDCCH之前，接收源接入网设备发送的第二信息，该第二信息指示发送第一PDCCH和msg2。
在一种可能的实现中，第一信息指示以下信息中的一种或多种：第一RA-RNTI、前导码对应的物理随机接入信道(PRACH)资源、前导码、第一波束的标识或第一波束对应的同步信号块(SSB)的标识。
在一种可能的实现中，通信单元1301，还用于在使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，执行以下步骤：接收源接入网设备发送的组切换请求，组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识；向源接入网设备发送切换确认信息。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中非组头UE的部分或全部功能。该装置可以是非组头UE，也可以是非组头UE中的装置，或者是能够和非组头UE匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收目标接入网设备广播的经过UE组的组移动用户临时标识(G-RNTI)加扰的第一PDCCH，该第一PDCCH用于承载第一信息的调度信息；处理单元，用于基于G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息；通信单元1301，还用于基于第一信息的调度信息，接收目标接入网设备广播的第一信息，该第一信息包括UE组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301，还用于接收源接入网设备发送的第二命令，第二命令携带UE组的G-RNTI；其中，第二命令中还携带组头UE的标识；或者，第二命令还携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中目标接入网设备的部分或全部功能。该装置可以是目标接入网设备，也可以是目标接入网设备中的装置，或者是能够和目标接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301 和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，msg1包括前导码；通信单元1301，还用于通过第一波束广播msg2；通信单元1301，还用于广播第一PDCCH，该第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，该第一PDCCH用于承载第一信息的调度信息；通信单元1301，还用于广播第一信息，该第一信息包括组头UE的时间提前量(TA)信息和UE组内的所有非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301，还用于在使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，执行以下步骤：接收源接入网设备发送的组切换请求，组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识和UE组的G-RNTI；向源接入网设备发送切换确认信息。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中源接入网设备的部分或全部功能。该装置可以是源接入网设备，也可以是源接入网设备中的装置，或者是能够和源接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于向目标接入网设备发送组切换请求，该组切换请求用于请求对UE组进行小区切换，组切换请求中携带UE组中的组头UE的标识和UE组的G-RNTI；通信单元1301，还用于接收目标接入网设备发送的切换确认信息；通信单元1301，还用于向组头UE发送第一命令；通信单元1301，还用于向非组头UE发送第二命令，该第二命令携带UE组的G-RNTI；其中，第一命令和第二命令中还携带组头UE的标识；或者，第一命令还携带用于指示收到第一命令的UE为组头UE的信息，第二命令还携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中非组头UE的部分或全部功能。该装置可以是非组头UE，也可以是非组头UE中的装置，或者是能够和非组头UE匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收源接入网设备发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301接收源接入网设备发送的UE组内的组头UE的TA 信息和非组头UE的上行资源分配信息的方式具体为：接收源接入网设备通过无线资源控制(RRC)消息发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301接收源接入网设备发送的UE组内的组头UE的TA信息和非组头UE的上行资源分配信息的方式具体为：
接收源接入网设备广播的第一PDCCH，第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，第一PDCCH用于承载第一信息的调度信息，第一信息包括UE组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息；使用G-RNTI对第一PDCCH进行解扰，得到第一信息的调度信息；基于第一信息的调度信息，接收源接入网设备广播第一信息。
在一种可能的实现中，通信单元1301，还用于接收源接入网设备发送的第二命令；其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中源接入网设备的部分或全部功能。该装置可以是源接入网设备，也可以是源接入网设备中的装置，或者是能够和源接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收目标接入网设备发送的第一信息，该第一信息包括用户设备(UE)组中的组头UE的时间提前量(TA)信息和UE组中的所有非组头UE的上行资源分配信息；通信单元1301，还用于向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息的方式具体为：通过无线资源控制(RRC)消息向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301向非组头UE发送组头UE的TA信息和非组头UE的上行资源分配信息的方式具体为：广播第一PDCCH，第一PDCCH由UE组的组移动用户临时标识(G-RNTI)加扰，第一PDCCH用于承载第一信息的调度信息；广播第一信息。
在一种可能的实现中，通信单元1301还用于执行以下步骤：
向目标接入网设备发送组切换请求，该组切换请求用于请求对UE组进行小区切换，组切换请求中携带UE组中的组头UE的标识；接收目标接入网设备发送的切换确认信息；向组头UE发送第一命令；向非组头UE发送第二命令；其中，第一命令和第二命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第 二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中目标接入网设备的部分或全部功能。该装置可以是目标接入网设备，也可以是目标接入网设备中的装置，或者是能够和目标接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1，msg1包括前导码；通信单元1301，还用于使用第一波束广播msg2；通信单元1301，还用于向源接入网设备发送第一信息，该第一信息包括组头UE的时间提前量(TA)信息和UE组中所有非组头UE的上行资源分配信息。
在一种可能的实现中，通信单元1301，还用于在使用第一波束接收用户设备(UE)组中的组头UE发送的消息(msg)1之前，执行以下步骤：接收源接入网设备发送的组切换请求，组切换请求用于请求对UE组进行小区切换，该组切换请求中携带组头UE的标识；向源接入网设备发送切换确认信息。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中源接入网设备的部分或全部功能。该装置可以是源接入网设备，也可以是源接入网设备中的装置，或者是能够和源接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于向UE组中的组头UE发送第一命令；通信单元1301，还用于向UE组中的组头UE发送第二命令；其中，第一命令和第二命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第一命令和第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中非组头UE的部分或全部功能。该装置可以是非组头UE，也可以是非组头UE中的装置，或者是能够和非组头UE匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通 信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收源接入网设备发送的第二命令；其中，第二命令中携带组头UE的标识；或者，第二命令携带用于指示收到第二命令的UE为非组头UE的信息；或者，第二命令与源接入网设备发送给组头UE的第一命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第二命令还携带UE组的组移动用户临时标识(G-RNTI)。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中组头UE的部分或全部功能。该装置可以是组头UE，也可以是组头UE中的装置，或者是能够和组头UE匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收源接入网设备发送的第一命令；其中，第一命令中携带组头UE的标识；或者，第一命令携带用于指示收到第一命令的UE为组头UE的信息；或者，第一命令和源接入网设备发送给非组头UE的第二命令的信令名称不相同，第一命令指示收到第一命令的UE为组头UE的信息，第二命令指示收到第二命令的UE为非组头UE的信息。
在一种可能的实现中，第一命令和第二命令指示进行小区切换。
请参见图13，图13示出了本申请实施例的一种通信装置的结构示意图。图13所示的通信装置可以用于执行上述方法实施例中源接入网设备的部分或全部功能。该装置可以是源接入网设备，也可以是源接入网设备中的装置，或者是能够和源接入网设备匹配使用的装置。其中，该通信装置还可以为芯片系统。图13所示的通信装置可以包括通信单元1301和处理单元1302。其中，处理单元1302，用于进行数据处理。通信单元1301集成有接收单元和发送单元。通信单元1301也可以称为收发单元。或者，也可将通信单元1301拆分为接收单元和发送单元。其中：
通信单元1301，用于接收多个UE的测量报告；处理单元1302，用于基于多个用户设备(UE)的测量报告从多个UE中确定多个第二UE，第二UE对应的测量报告指示邻区信号质量比服务小区信号质量高于第一门限，或服务小区信号质量低于第二门限且邻区信号质量高于第三门限；处理单元1302，还用于基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组。
在一种可能的实现中，处理单元1302基于多个第二UE的位置确定是否将多个第二UE划分为一个UE组，包括：
若多个第二UE的位置的离散程度小于或等于第四门限，则将多个第二UE划分为一个UE组；若多个第二UE的位置的离散程度大于第四门限，则不将多个第二UE划分为一个UE组。
在一种可能的实现中，在UE组中，组头UE距离UE组的中心位置最近。
在一种可能的实现中，处理单元1302，还用于基于第二UE对应的最佳波束和时间提前量(TA)信息确定第二UE的位置。
图14给出了一种通信装置的结构示意图。所述通信装置1400可以是上述方法实施例中的组头UE、非组头UE、源接入网设备或目标接入网设备，还可以是支持组头UE、非组头UE、源接入网设备或目标接入网设备实现上述方法的芯片、芯片系统、或处理器等。该通信装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
所述通信装置1400可以包括一个或多个处理器1401。所述处理器1401可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端、终端芯片，DU或CU等)进行控制，执行软件程序，处理软件程序的数据。
可选的，所述通信装置1400中可以包括一个或多个存储器1402，其上可以存有指令1404，所述指令可在所述处理器1401上被运行，使得所述通信装置1400执行上述方法实施例中描述的方法。可选的，所述存储器1402中还可以存储有数据。所述处理器1401和存储器1402可以单独设置，也可以集成在一起。
可选的，所述通信装置1400还可以包括收发器1405、天线1406。所述收发器1405可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1405可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。其中，图13所示的处理单元1302可以为处理器1401。通信单元1301可以为收发器1405。
另一种可能的设计中，处理器1401中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
又一种可能的设计中，可选的，处理器1401可以存有指令1403，指令1403在处理器1401上运行，可使得所述通信装置1400执行上述方法实施例中描述的方法。指令1403可能固化在处理器1401中，该种情况下，处理器1401可能由硬件实现。
又一种可能的设计中，通信装置1400可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请实施例中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是组头UE、非组头UE、源接入网设备或目标接入网设备，但本申请实施例中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图14的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，指令的 存储部件；
(3)ASIC，例如调制解调器(MSM)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图15所示的芯片的结构示意图。图15所示的芯片1500包括处理器1501、接口1502。可选的，还可包括存储器1503。其中，处理器1501的数量可以是一个或多个，接口1502的数量可以是多个。
对于芯片用于实现本申请实施例中组头UE、非组头UE、源接入网设备或目标接入网设备的功能的情况：
所述接口1502，用于接收或输出信号；
所述处理器1501，用于执行组头UE、非组头UE、源接入网设备或目标接入网设备的数据处理操作。
可以理解的是，本申请实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，比如其当前所基于的方案，而独立实施，解决相应的技术问题，达到相应的效果，也可以在某些场景下，依据需求与其他特征进行结合。相应的，本申请实施例中给出的通信装置也可以相应的实现这些特征或功能，在此不予赘述。
应理解，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请还提供了一种计算机可读介质，存储介质中存储有计算机程序或指令，当计算机程序或指令被通信装置执行时，实现上述任一方法实施例的功能。
本申请还提供了一种包括指令的计算机程序产品，当计算机读取并执行计算机程序产品时，使得计算机实现上述任一方法实施例的功能。
上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使 用软件实现时，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。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、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(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(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成的服务器、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，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种信息传输方法，其特征在于，所述方法包括：
    接收源接入网设备发送的第一信息，所述第一信息用于确定第一随机接入无线网络临时标识RA-RNTI和第一波束，所述第一RA-RNTI用于加扰第一物理下行控制信道PDCCH，所述第一PDCCH用于承载消息msg2的调度信息，所述第一波束用于传输msg1和msg2，所述msg1包括前导码，所述msg2包括UE组内的组头UE的时间提前量TA信息和所述UE组内所有UE的上行资源分配信息；
    基于所述第一信息确定所述第一RA-RNTI和所述第一波束；
    接收目标接入网设备广播的经过所述第一RA-RNTI加扰的所述第一PDCCH；
    基于所述第一RA-RNTI对所述第一PDCCH进行解扰，得到所述msg2的调度信息；
    基于所述msg2的调度信息，通过所述第一波束接收所述目标接入网设备广播的所述msg2。
  2. 根据权利要求1所述的方法，其特征在于，所述接收源接入网设备发送的第一信息，包括：
    接收所述源接入网设备通过无线资源控制RRC消息发送的所述第一信息。
  3. 根据权利要求1所述的方法，其特征在于，所述接收源接入网设备发送的第一信息，包括：
    接收所述源接入网设备广播的第二PDCCH，所述第二PDCCH由所述UE组的组移动用户临时标识G-RNTI加扰，所述第二PDCCH用于承载所述第一信息的调度信息；
    基于所述UE组的G-RNTI对所述第二PDCCH进行解扰，得到所述第一信息的调度信息；
    基于所述第一信息的调度信息接收所述源接入网设备广播的所述第一信息。
  4. 根据权利要求1～3中任意一项所述的方法，其特征在于，所述接收源接入网设备发送的第一信息之后，所述方法还包括：
    向所述源接入网设备发送第三信息，所述第三信息指示已接收到所述第一信息。
  5. 根据权利要求1～4中任意一项所述的方法，其特征在于，所述第一信息指示以下信息中的一种或多种：所述第一RA-RNTI、所述前导码对应的物理随机接入信道PRACH资源、所述前导码、所述第一波束的标识或所述第一波束对应的同步信号块SSB的标识。
  6. 根据权利要求1～5中任意一项所述的方法，其特征在于，其特征在于，所述接收源接入网设备发送的第一信息之前，所述方法还包括：
    接收所述源接入网设备发送的第二命令；
    其中，所述第二命令中携带所述组头UE的标识；或者，所述第二命令携带用于指示收到所述第二命令的UE为非组头UE的信息；或者，所述第二命令与所述源接入网设备发送给组头UE的第一命令名称不相同，所述第一命令指示收到所述第一命令的UE为组头UE的信息，所述第二命令指示收到所述第二命令的UE为非组头UE的信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第二命令还携带所述UE组的组移动用户临时标识G-RNTI。
  8. 根据权利要求6或7所述的方法，其特征在于，所述第一命令和所述第二命令指示进行小区切换。
  9. 一种信息传输方法，其特征在于，所述方法包括：
    接收目标接入网设备发送的第一信息，所述第一信息用于确定第一随机接入无线网络临时标识RA-RNTI和第一波束，所述第一RA-RNTI用于加扰第一物理下行控制信道PDCCH，所述第一PDCCH用于承载消息msg2的调度信息，所述第一波束用于传输msg1和msg2，所述msg1包括前导码，所述msg2包括UE组内的组头UE的时间提前量TA信息和所述UE组内所有UE的上行资源分配信息；
    向所述UE组中的非组头UE发送所述第一信息。
  10. 根据权利要求9所述的方法，其特征在于，所述向所述UE组中的非组头UE发送所述第一信息，包括：
    通过无线资源控制RRC消息向所述UE组中的非组头UE发送所述第一信息。
  11. 根据权利要求9所述的方法，其特征在于，所述向所述UE组中的非组头UE发送所述第一信息，包括：
    广播第二PDCCH，所述第二PDCCH由所述UE组的组移动用户临时标识G-RNTI加扰，所述第二PDCCH用于承载所述第一信息的调度信息；
    广播所述第一信息。
  12. 根据权利要求9～11中任意一项所述的方法，其特征在于，所述向所述UE组中的非组头UE发送所述第一信息之后，所述方法还包括：
    启动定时器；
    当所述定时器超时时，向所述目标接入网设备发送第二信息，所述第二信息指示发送所述第一PDCCH和所述msg2。
  13. 根据权利要求9～12中任意一项所述的方法，其特征在于，所述向所述UE组中的非组头UE发送所述第一信息之后，所述方法还包括：
    当接收到所有所述非组头UE发送的第三信息时，向所述目标接入网设备发送第二信息，所述第二信息指示发送所述第一PDCCH和所述msg2，所述第三信息指示所述非组头UE已接收到所述第一信息。
  14. 根据权利要求9～13中任意一项所述的方法，其特征在于，所述第一信息指示以下信息中的一种或多种：所述第一RA-RNTI、所述前导码对应的物理随机接入信道PRACH资源、所述前导码、所述第一波束的标识或所述第一波束对应的同步信号块SSB的标识。
  15. 根据权利要求9～14中任意一项所述的方法，其特征在于，所述接收目标接入网设备 发送的第一信息之前，所述方法还包括：
    向所述目标接入网设备发送组切换请求，所述组切换请求用于请求对所述UE组进行小区切换，所述组切换请求中携带所述组头UE的标识；
    接收目标接入网设备发送的切换确认信息；
    向所述组头UE发送第一命令；
    向所述非组头UE发送第二命令；
    其中，所述第一命令和所述第二命令中均携带所述组头UE的标识；或者，所述第一命令携带用于指示收到所述第一命令的UE为组头UE的信息，所述第二命令携带用于指示收到所述第二命令的UE为非组头UE的信息；或者，所述第一命令和所述第二命令的信令名称不相同，所述第一命令指示收到所述第一命令的UE为组头UE的信息，所述第二命令指示收到所述第二命令的UE为非组头UE的信息。
  16. 根据权利要求15所述的方法，其特征在于，所述第二命令还携带所述UE组的组移动用户临时标识G-RNTI。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第一命令和所述第二命令指示进行小区切换。
  18. 一种信息传输方法，其特征在于，所述方法包括：
    使用第一波束接收用户设备UE组中的组头UE发送的消息msg1，所述msg1包括前导码；
    向源接入网设备发送第一信息，所述第一信息用于确定第一随机接入无线网络临时标识RA-RNTI和所述第一波束，所述第一RA-RNTI用于加扰第一物理下行控制信道PDCCH，所述第一PDCCH用于承载msg2的调度信息，所述msg2包括所述组头UE的时间提前量TA信息和所述UE组内所有UE的上行资源分配信息；
    广播经过所述第一RA-RNTI加扰的所述第一PDCCH；
    通过所述第一波束广播所述msg2。
  19. 根据权利要求18所述的方法，其特征在于，所述发送由所述第一RA-RNTI加扰的所述第一PDCCH之前，所述方法还包括：
    接收所述源接入网设备发送的第二信息，所述第二信息指示发送所述第一PDCCH和所述msg2。
  20. 根据权利要求18或19所述的方法，其特征在于，所述第一信息指示以下信息中的一种或多种：所述第一RA-RNTI、所述前导码对应的物理随机接入信道PRACH资源、所述前导码、所述第一波束的标识或所述第一波束对应的同步信号块SSB的标识。
  21. 根据权利要求18～20中任意一项所述的方法，其特征在于，所述使用第一波束接收用户设备UE组中的组头UE发送的消息msg1之前，所述方法还包括：
    接收所述源接入网设备发送的组切换请求，所述组切换请求用于请求对所述UE组进行小区切换，所述组切换请求中携带所述组头UE的标识；
    向所述源接入网设备发送切换确认信息。
  22. 一种通信装置，其特征在于，包括用于执行如权利要求1～8中任一项所述方法的单元，或包括用于执行如权利要求9～17中任一项所述方法的单元，或包括用于执行如权利要求18～21中任一项所述方法的单元。
  23. 一种通信装置，其特征在于，包括处理器和存储器，所述处理器和所述存储器耦合，所述处理器用于实现如权利要求1～8中任一项所述的方法，或所述处理器用于实现如权利要求9～17中任一项所述的方法，或所述处理器用于实现如权利要求18～21中任一项所述的方法。
  24. 一种芯片，其特征在于，包括处理器和接口，所述处理器和所述接口耦合；所述接口用于接收或输出信号，所述处理器用于执行代码指令，以使权利要求1～8中任一项所述的方法被执行，或以使权利要求9～17中任一项所述的方法被执行，或以使权利要求18～21中任一项所述的方法被执行。
  25. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机可执行指令，所述计算机可执行指令在被所述计算机调用时，使所述计算机执行上述权利要求1-8中任一项所述的方法，或使所述计算机执行上述权利要求9-17中任一项所述的方法，或使所述计算机执行上述权利要求18-21中任一项所述的方法。
  26. 一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序代码，所述计算机程序代码被计算机运行时，使所述计算机执行如权利要求1～8中任一项所述的方法，或使所述计算机执行如权利要求9～17中任一项所述的方法，或使所述计算机执行如权利要求18～21中任一项所述的方法。
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