WO2023273397A1 - 组切换方法、设备、装置及存储介质 - Google Patents

组切换方法、设备、装置及存储介质 Download PDF

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Publication number
WO2023273397A1
WO2023273397A1 PCT/CN2022/079752 CN2022079752W WO2023273397A1 WO 2023273397 A1 WO2023273397 A1 WO 2023273397A1 CN 2022079752 W CN2022079752 W CN 2022079752W WO 2023273397 A1 WO2023273397 A1 WO 2023273397A1
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Prior art keywords
group
terminal
network device
relay terminal
handover
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PCT/CN2022/079752
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English (en)
French (fr)
Inventor
赵亚利
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP22831228.6A priority Critical patent/EP4366375A1/en
Publication of WO2023273397A1 publication Critical patent/WO2023273397A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a group switching method, device, device and storage medium.
  • the traditional wireless communication adopts the cellular network communication mode, that is, the terminal and the network-side device transmit uplink and downlink data/control information through the Uu interface.
  • UE-to-Network Relay can be a terminal with a relay function.
  • the interface between the Relay (relay terminal) and the network uses the Uu interface, and the relay terminal (which can be called remote A direct communication interface is used between terminal terminals), and the link between the Relay and the network can be called a backhaul link (BH) for remote terminals.
  • BH backhaul link
  • the remote terminal is a wearable device
  • the relay terminal is the mobile phone of the wearable device user
  • the remote terminal and the relay terminal always move together. Therefore, how to support The group handover between the relay terminal and the remote terminal served by it has become an urgent problem to be solved.
  • the embodiments of the present disclosure provide a group switching method, device, device, and storage medium.
  • the embodiment of the present disclosure provides a group switching method applied to a source network device, including:
  • a handover request message is sent to the target network device, where the handover request message carries first indication information for characterizing the terminal group.
  • the first indication information includes one or more of the following information:
  • User terminal UE context information corresponding to the member terminals in the group is not limited to the member terminals in the group.
  • the method also includes:
  • the method also includes:
  • the method further includes:
  • the measurement configuration is sent to all or part of the member terminals in the group, but only the relay terminals in the group are restricted to perform measurement reporting.
  • the method further includes:
  • the measurement configuration is sent to each member terminal in the group that needs to report the measurement.
  • the method also includes:
  • the measurement report message includes the measurement result of the relay terminal in the group or the member terminal in the group itself, and the measurement results of other member terminals in the group result.
  • the measurement report message includes second indication information, where the second indication information is used to indicate a desired handover type, and the handover type includes group handover and single terminal handover.
  • the handover request message further includes third indication information of the relay terminal in the change group.
  • the handover request message also includes the measurement results of the target cell by the member terminals in the group.
  • the method also includes:
  • the source relay terminal in the group After receiving the handover request confirmation message sent by the target network device, if the relay terminal in the group changes, the source relay terminal in the group notifies other member terminals in the group of the new relay terminal in the group.
  • the embodiment of the present disclosure also provides a group handover method applied to a target network device, including:
  • a handover request message sent by the source network device is received, where the handover request message carries first indication information used to characterize the terminal group.
  • the method further includes any of the following:
  • the handover request confirmation message includes fourth indication information, and the fourth indication information is used to indicate The identification information of the member terminals in the admitted group;
  • the handover request confirmation message includes fifth indication information, and the fifth indication information It is used to indicate the identification information of the accepted member terminal in the group and the bearer information that the accepted member terminal in the group is accepted.
  • the handover request message also includes measurement results of the target cell by member terminals in the group;
  • the method also includes:
  • the relay terminal in the group is changed based on the measurement result.
  • the handover request acknowledgment message further includes sixth indication information indicating a new relay terminal in the group.
  • the handover request acknowledgment message further includes one or more of the following:
  • the direct communication interface between the member terminal in the group and the relay terminal in the group bears the configuration information
  • the Uu interface between the relay terminal in the group and the target network device bears configuration information
  • the direct communication interface bearer between the member terminal in the group and the relay terminal in the group Between the direct communication interface bearer between the member terminal in the group and the relay terminal in the group, the Uu interface bearer between the relay terminal in the group and the target network device, and the end-to-end bearer between the member terminal in the group and the target network device mapping relationship.
  • the embodiment of the present disclosure further provides a group handover method applied to a terminal, including:
  • a measurement report message is sent to the source network device.
  • the sending the measurement reporting message to the source network device includes:
  • a measurement report message is sent to the source network device.
  • the measurement report message includes the measurement results of the relay terminal in the group itself and the measurement results of other member terminals in the group;
  • the measurement report message includes the measurement result of the remote terminal in the group itself and the measurement results of other member terminals in the group.
  • the measurement results of the member terminals in the other group are obtained through periodic interaction or event-triggered interaction of the direct communication interface, and the trigger event includes one or more of the following:
  • the signal quality of neighboring cells measured by other member terminals in the group is higher than the threshold.
  • the measurement report message includes second indication information, where the second indication information is used to indicate a desired handover type, and the handover type includes group handover and single terminal handover.
  • the method also includes:
  • the relay terminal in the source group notifies other member terminals in the group of the new relay terminal in the group;
  • the new relay terminal in the group receives the notification from the relay terminal in the source group, releases the direct communication connection with the relay terminal in the source group, and communicates with the relay terminal in the new group The terminal establishes a direct communication connection.
  • the method also includes:
  • the terminal is a relay terminal in the group
  • the seventh indication information is used to instruct other member terminals in the group to send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • an embodiment of the present disclosure further provides a source network device, including a memory, a transceiver, and a processor, where:
  • a memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer programs in the memory and implementing the combination described in the first aspect above Steps to switch methods.
  • an embodiment of the present disclosure further provides a target network device, including a memory, a transceiver, and a processor, wherein:
  • a memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer programs in the memory and implementing the combination described in the second aspect above Steps to switch methods.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor, wherein:
  • a memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer programs in the memory and implementing the combination described in the third aspect above Steps to switch methods.
  • an embodiment of the present disclosure further provides a group switching device, which is applied to a source network device, including:
  • a judging unit configured to make a handover judgment
  • the first sending unit is configured to send a handover request message to the target network device after determining to execute the group handover, where the handover request message carries first indication information used to characterize the terminal group.
  • an embodiment of the present disclosure further provides a group switching device, which is applied to a target network device, including:
  • the second receiving unit is configured to receive a handover request message sent by the source network device, where the handover request message carries first indication information used to characterize the terminal group.
  • the embodiment of the present disclosure further provides a group switching device applied to a terminal, including:
  • a third sending unit configured to send a measurement report message to the source network device based on the received measurement report configuration.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned first aspect.
  • the steps of the group switching method, or the steps of the group switching method described in the second aspect above, or the steps of the group switching method described in the third aspect above are executed.
  • the source network device can send a switching request message to the target network device after making a switching decision and determining to execute the group switching, and the switching request message carries information used to characterize the terminal.
  • the first indication information of the group can support group switching between the relay terminal in the group and the remote terminal in the group it serves, and fills the gap in the group switching of the U2N relay communication system.
  • FIG. 1 is a schematic diagram of a traditional wireless communication method provided by the prior art
  • FIG. 2 is a schematic diagram of a device-to-device direct communication method provided by the prior art
  • Fig. 3 is a schematic diagram of UE-to-Network Relay provided by the prior art
  • Fig. 4 is one of the schematic flowcharts of the group switching method provided by the embodiment of the present disclosure.
  • FIG. 5 is a second schematic flow diagram of a group switching method provided by an embodiment of the present disclosure.
  • FIG. 6 is a third schematic flowchart of a group switching method provided by an embodiment of the present disclosure.
  • FIG. 7 is a fourth schematic flowchart of a group switching method provided by an embodiment of the present disclosure.
  • FIG. 8 is a fifth schematic flow diagram of a group switching method provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a source network device provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a target network device provided by an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Fig. 12 is one of the structural schematic diagrams of a group switching device provided by an embodiment of the present disclosure.
  • Fig. 13 is the second structural schematic diagram of a group switching device provided by an embodiment of the present disclosure.
  • FIG. 14 is a third structural schematic diagram of a group switching device provided by an embodiment of the present disclosure.
  • Fig. 1 is a schematic diagram of a traditional wireless communication method provided by the prior art.
  • the traditional wireless communication adopts a cellular network communication method, that is, a terminal and a network side device transmit uplink and downlink data/control information through a Uu interface.
  • FIG 2 is a schematic diagram of a device-to-device direct communication method provided by the prior art.
  • direct communication means that adjacent terminals can use a direct communication link (also called Sidelink or proximity communication port 5) within a short distance. (Proximity Communication Port 5, PC5)) for data transmission.
  • the wireless interface corresponding to the Sidelink link is called a Sidelink interface (also called a direct communication interface or a PC5 interface).
  • FIG 3 is a schematic diagram of UE-to-Network Relay provided by the prior art.
  • UE-to-Network Relay can be a terminal with a relay function.
  • the interface between the Relay (relay terminal) and the network uses the Uu interface, and the relayed terminal (which can be called a remote
  • the direct communication interface is used between the end terminals), and the link between the Relay and the network can be called a backhaul link for the remote terminal.
  • the bearers in the relay scenario are divided into the following three categories:
  • Direct communication interface bearer that is, the bearer between the remote terminal and the relay terminal;
  • End-to-end bearer between the remote terminal and the network device that is, the end-to-end bearer established between the remote terminal and the network device;
  • the bearer of the remote terminal on the backhaul link of the Uu interface that is, the bearer used to carry the data of the remote terminal between the relay terminal and the network device.
  • connections are divided into the following two types:
  • Direct connection UE is directly connected to the network device called direct connection;
  • Indirect connection The UE connects to the network device through a relay terminal, which is called an indirect connection.
  • various embodiments of the present disclosure provide a solution that supports group switching between the relay terminal and the remote terminal it serves, which can fill the Blank for UE-to-Network (UE-to-Network, U2N) relay communication system group handover.
  • UE-to-Network UE-to-Network, U2N
  • FIG. 4 is one of the flow diagrams of the group handover method provided by the embodiment of the present disclosure.
  • the method is applied to a source network device (such as a source base station). As shown in FIG. 4, the method includes the following steps:
  • Step 400 making a handover decision.
  • the source network device connected to the terminal makes a handover decision, such as determining whether to perform group handover or a single terminal handover, determining which target network device (such as a target base station) to handover the terminal from the source network device to, etc. Wait. How to make a handover decision depends on the implementation of the source network device, which is not limited here.
  • Step 401 After determining to perform group handover, send a handover request message to the target network device, where the handover request message carries first indication information used to characterize the terminal group.
  • the source network device may send a handover request message to the target network device, where the handover request message carries first indication information used to characterize the terminal group.
  • the first indication information may include one or more of the following information:
  • User terminal UE context information corresponding to the member terminals in the group is not limited to the member terminals in the group.
  • the member terminals in the group communication include the relay terminals in the group and the remote terminals in the group.
  • a terminal group may include a relay terminal in the group and one or more remote terminals in the group.
  • a terminal group may also include not only one relay terminal in the group.
  • the source network device may send a handover request message to the target network device after making a handover decision and determining to execute the group handover, and the handover request message carries the first indication information used to characterize the terminal group, Therefore, it is possible to support group handover between the relay terminal in the group and the remote terminal in the group served by it, which fills the gap in the group handover of the U2N relay communication system.
  • the method also includes:
  • the measurement report message of the terminal is received, and a handover decision is made based on the measurement report message.
  • the terminal may perform the measurement process according to the configuration of the source network device, and report the measurement result to the source network device when the measurement report trigger condition is satisfied, and the source network device may receive the measurement report message of the terminal , making a handover decision based on the measurement report message.
  • the source network device can make a handover decision based on the measurement report message of the terminal, so that the handover decision process is more accurate, and it can better support the relay terminals in the group and the remote terminals served by them in the group. End-to-end to perform group switching together.
  • the method also includes:
  • the source network device receives the measurement report result of the terminal, which may be to receive the measurement report result only from the relay terminal in the group, or receive the measurement report result from all or part of the member terminals in the group, specifically, the source network device may send the measurement report result to the terminal
  • the measurement configuration is implemented.
  • the method further includes:
  • the measurement configuration is sent to all or part of the member terminals in the group, but only the relay terminals in the group are restricted to perform measurement reporting.
  • the source network device can only send the measurement configuration to the relay terminals in the group, that is, only configure the measurement reporting for the relay terminals in the group, and do not need to configure the measurement report for the remote terminals in the group.
  • the relay terminal in the group changes, it needs to be indicated to the source network device so that the source network device can change the measurement configuration.
  • the source network device can also send measurement configurations to all or some member terminals in the group, that is, configure measurement reporting for all or some member terminals in the group, but only allow relay terminals in the group to perform measurement reporting, that is, if the member terminals in the group If the role in the group is not a relay terminal, measurement reporting is prohibited.
  • the method further includes:
  • the measurement configuration is sent to each member terminal in the group that needs to report the measurement.
  • the source network device can send the measurement configuration to each member terminal in the group that needs to perform measurement reporting, so that the member terminals in the group can follow the configuration of the source network device Execute the measurement process, and report the measurement result to the source network device when the measurement reporting trigger condition is met.
  • the method also includes:
  • the measurement report message sent by the relay terminal in the group or the member terminal in the group is received, and the measurement report message includes the measurement result of the relay terminal in the group or the member terminal in the group itself, and the measurement results of other member terminals in the group.
  • the source network device when the source network device can configure the relay terminal in the group or the member terminal in the group to report the measurement result, it also needs to report the measurement result of other member terminals in the group, so that the source network device receives the relay terminal in the group or the member terminal in the group After the measurement report message sent by the terminal, the handover decision can be made based on the measurement results of the relay terminals in the group or the member terminals in the group carried in the measurement report message, as well as the measurement results of other member terminals in the group.
  • the measurement results of other member terminals in the group may be obtained by the relay terminal in the group or the member terminal in the group that reports the measurement through a direct communication interface, specifically, it may be obtained through periodic interaction or event-triggered interaction.
  • Trigger events can include one or more of the following:
  • the signal quality of neighboring cells measured by other member terminals in the group is higher than the threshold.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the terminal may carry second indication information in the measurement report message, and the second indication information is used to indicate the type of handover that the terminal expects to perform, such as whether the terminal expects to perform group handover or handover of only a single terminal , so that after receiving the measurement report message, the source network device can assist in making a handover decision based on the second indication information therein.
  • the handover request message further includes third indication information of the relay terminal in the change group.
  • the handover request message also includes the measurement results of the target cell by the member terminals in the group.
  • the source network device can determine the change group based on these measurement results.
  • the relay terminal in the group and includes the third instruction information of changing the relay terminal in the group in the handover request message sent to the target network device.
  • the content of the third instruction information may be the identification information of the relay terminal in the current group and the source The changed intra-group relay terminal identification information expected by the network device.
  • the source network device can also carry the measurement results of the member terminals in the group for the target cell in the handover request message and send it to the target network device, so that the target network device can determine whether to change the relay terminal in the group according to these measurement results.
  • the method also includes:
  • the source relay terminal in the group After receiving the handover request confirmation message sent by the target network device, if the relay terminal in the group changes, the source relay terminal in the group notifies other member terminals in the group of the new relay terminal in the group.
  • the target network device may perform a group admission decision after receiving the handover request message sent by the source network device, and reply a handover request confirmation message to the source network device, and the source network device receives the handover request confirmation message After that, one or a combination of the following operations can be performed:
  • Radio Resource Control (Radio Resource Control, RRC) reconfiguration messages to the relay terminal in the group and other member terminals in the group respectively, triggering the relay terminal in the group and the member terminals in the other group to initiate a handover process;
  • RRC Radio Resource Control
  • the source network device may notify other member terminals in the group of the new relay terminal in the group through the relay terminal in the source group.
  • the member terminal in the group can release the direct communication connection with the relay terminal in the source group, and communicate with the new relay terminal in the group.
  • the relay terminal establishes a direct communication connection.
  • the relay terminal in the group after the relay terminal in the group completes random access with the target network device or sends an RRC reconfiguration complete message to the target network device, it can send indication information to the member terminals in the group, and the indication information is used to indicate The member terminal may send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • Figure 5 is the second schematic flow diagram of the group handover method provided by the embodiment of the present disclosure, the method is applied to a target network device (such as a target base station), as shown in Figure 5, the method includes the following steps:
  • Step 500 Receive a handover request message sent by the source network device, where the handover request message carries first indication information for characterizing the terminal group.
  • the source network device (such as the source base station) makes a group handover decision and determines to execute the group handover, it may send a handover request message to the target network device, and the handover request message carries the first
  • the target network device receives the handover request message sent by the source network device, and makes a group admission decision.
  • the first indication information may include one or more of the following information:
  • User terminal UE context information corresponding to the member terminals in the group is not limited to the member terminals in the group.
  • the source network device may send a handover request message to the target network device after making a handover decision and determining to execute the group handover, and the handover request message carries the first indication information used to characterize the terminal group, Therefore, it is possible to support group handover between the relay terminal in the group and the remote terminal in the group served by it, which fills the gap in the group handover of the U2N relay communication system.
  • the method further includes any of the following:
  • the handover request confirmation message includes fourth indication information, and the fourth indication information is used to indicate the accepted group members Terminal identification information;
  • the handover request confirmation message includes fifth indication information, and the fifth indication information is used to indicate the accepted The identification information of the member terminal in the group and the bearer information of the admitted member terminal in the group.
  • the target network device may perform group admission judgment after receiving the handover request message sent by the source network device, and the specific method may be one of the following:
  • the target network device Only when the target network device determines that it can accommodate all member terminals in the group, the target network device replies a handover request confirmation message to the source network device;
  • the target network device determines that it only accepts some member terminals in the group. At this time, the target network device may reply a handover request confirmation message to the source network device.
  • the handover request confirmation message includes fourth indication information, and the fourth indication information is used to indicate that it is accepted Identification information of member terminals in the group (that is, acceptable to the target network device).
  • the target network device determines that it only accepts part of the bearers of member terminals in some groups. At this time, the target network device may reply a handover request confirmation message to the source network device.
  • the handover request confirmation message includes fifth indication information, and the fifth indication information is used for Indicates the identification information of the accepted member terminal in the group and the bearer information that the accepted member terminal in the group is accepted.
  • the above handover request acknowledgment message may also include any of the following or a combination thereof:
  • the direct communication interface between the member terminal in the group and the relay terminal in the group bears the configuration information
  • the Uu interface between the relay terminal in the group and the target network device bears configuration information
  • the direct communication interface bearer between the member terminal in the group and the relay terminal in the group Between the direct communication interface bearer between the member terminal in the group and the relay terminal in the group, the Uu interface bearer between the relay terminal in the group and the target network device, and the end-to-end bearer between the member terminal in the group and the target network device mapping relationship.
  • the handover request message also includes measurement results of the target cell by member terminals in the group;
  • the method also includes:
  • the relay terminal in the group is changed.
  • the source network device when the source network device can configure the relay terminal in the group or the member terminal in the group to report the measurement results, it also needs to report the measurement results of other member terminals in the group, so that the source network device receives the After the measurement report message sent by the terminal or the member terminal in the group, the measurement result of the member terminal in the group for the target cell can be carried in the handover request message and sent to the target network device. After the target network device receives the handover request message, Whether to change the relay terminal in the group can be determined according to these measurement results.
  • the handover request acknowledgment message further includes sixth indication information indicating a new relay terminal in the group.
  • the handover request confirmation message sent by the target network device to the source network device may further include sixth indication information indicating the new relay terminal in the group.
  • FIG. 6 is the third schematic flow diagram of the group switching method provided by the embodiment of the present disclosure. The method is applied to a terminal. As shown in FIG. 6 , the method includes the following steps:
  • Step 600 Send a measurement report message to the source network device based on the received measurement configuration.
  • the terminal may be an intra-group relay terminal in the group communication, or a remote terminal in the group in the group communication, and the terminal may perform the measurement process according to the configuration of the source network device. After the trigger condition is reported, a measurement message is sent to the source network device based on the measurement configuration, so that the source network device can make a handover decision based on the measurement report message after receiving the measurement report message from the terminal.
  • the source network device can make a handover decision based on the measurement report message of the terminal, so that the handover decision process is more accurate, and it can better support the relay terminals in the group and the remote terminals served by them in the group. End-to-end to perform group switching together.
  • the sending the measurement reporting message to the source network device includes:
  • a measurement report message is sent to the source network device.
  • the source network device may only send the measurement configuration to the relay terminals in the group, or may send the measurement configuration to all or some member terminals in the group. Measurement configuration, but only allow relay terminals in the group to perform measurement reporting, so when the terminal is a relay terminal in the group, the relay terminal in the group sends a measurement report message to the source network device.
  • the measurement report message includes the measurement results of the relay terminal in the group itself and the measurement results of other member terminals in the group;
  • the measurement report message includes the measurement result of the remote terminal in the group itself and the measurement results of other member terminals in the group.
  • the source network device when the source network device can configure the relay terminal in the group or the remote terminal in the group to report the measurement results, it also needs to report the measurement results of other member terminals in the group, so that the source network device receives the in-group After the measurement report message sent by the relay terminal or the remote terminal in the group, based on the measurement results of the relay terminal in the group or the remote terminal in the group carried in the measurement report message, and the measurement results of other member terminals in the group, Make a switch decision.
  • the measurement results of the member terminals in the other group may be obtained through periodic interaction or event-triggered interaction through the direct communication interface, where the trigger event may include one or more of the following:
  • the signal quality of neighboring cells measured by other member terminals in the group is higher than the threshold.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the terminal may carry second indication information in the measurement report message, and the second indication information is used to indicate the type of handover that the terminal expects to perform, such as whether the terminal expects to perform group handover or handover of only a single terminal , so that after receiving the measurement report message, the source network device can assist in making a handover decision based on the second indication information therein.
  • the method also includes:
  • the relay terminal in the source group notifies other member terminals in the group of the new relay terminal in the group;
  • the new relay terminal in the group receives the notification from the relay terminal in the source group, releases the direct communication connection with the relay terminal in the source group, and communicates with the relay terminal in the new group The terminal establishes a direct communication connection.
  • the target network device may perform a group admission decision after receiving the handover request message sent by the source network device, and reply a handover request confirmation message to the source network device, and the source network device receives the handover request confirmation message After that, one or a combination of the following operations can be performed:
  • the source network device may notify other member terminals in the group of the new relay terminal in the group through the relay terminal in the source group.
  • the member terminal in the group can release the direct communication connection with the relay terminal in the source group, and communicate with the new relay terminal in the group.
  • the relay terminal establishes a direct communication connection.
  • the method also includes:
  • the terminal is a relay terminal in the group
  • the seventh indication information is sent to other member terminals in the group, and the seventh indication information is used for To instruct other member terminals in the group to send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • the relay terminal in the group after the relay terminal in the group completes random access with the target network device or sends an RRC reconfiguration completion message to the target network device, it can send seventh indication information to the member terminals in the group.
  • the seventh indication information is used to indicate that the member terminal in the group can send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • FIG. 7 is a fourth schematic flowchart of a group handover method provided by an embodiment of the present disclosure.
  • the source network device is a source base station
  • the target network device is a target base station.
  • the specific description of each step is as follows:
  • Step 700 grouping process
  • the grouping process in this embodiment may follow the existing high-level grouping process, or may use a new grouping process, which is not limited here.
  • Step 701 relay terminal measurement report
  • the relay terminal executes the measurement process according to the configuration of the source network device, and reports the measurement result to the source network device when the measurement reporting trigger condition is met.
  • the specific implementation method may be one of the following:
  • the source network device only configures measurement reporting for the relay terminals in the group, and does not need to configure measurement reporting for the remote terminals in the group. Once the relay terminals in the group change, it needs to be instructed to the source network device so that the source network device can change the measurement configuration;
  • the source network device may configure measurement reporting for each member terminal in the group, but if the role of the terminal in the group is not a relay terminal, measurement reporting is prohibited.
  • indication information may be carried in the relay terminal measurement report, indicating whether the relay terminal expects to perform group handover or only relay terminal handover.
  • Step 702 the source network device executes a handover decision
  • the source network device executes a group handover decision if it is a group handover. How to determine the target cell depends on the implementation of the source network device.
  • Step 703 the source network device sends a handover request message to the target network device
  • the source network device performs a handover decision. If group handover is performed, the source network device needs to send a handover request message to the target network device, and the handover request message needs to carry at least one or more of the following information:
  • Step 704 the target network device sends a handover request confirmation message to the source network device
  • the target network device performs a group admission decision.
  • the target network device executes the group admission decision, and the specific method can be one of the following:
  • the target network device is allowed to accept only part of the member terminals in the group, and the target network device needs to indicate the identification information of the member terminals in the group that it can accept when it replies to the source network device with a handover request confirmation message;
  • the target network device is allowed to accept only part of the bearers of the member terminals in the group.
  • the target network device replies to the source network device with a handover request confirmation message, it needs to indicate the identification information of the member terminals in the group that it can accept and the number of member terminals in the group that are accepted. Bearer information.
  • the handover request confirmation message also needs to include one or a combination of the following:
  • the direct communication interface between the member terminal in the group and the relay terminal in the group bears the configuration information
  • the direct communication interface bearer between the member terminal in the group and the relay terminal in the group Between the direct communication interface bearer between the member terminal in the group and the relay terminal in the group, the Uu interface bearer between the relay terminal in the group and the target network device, and the end-to-end bearer between the member terminal in the group and the target network device mapping relationship.
  • Step 705 the source network device performs RRC reconfiguration on the relay terminal
  • the source network device sends an RRC reconfiguration message to the relay terminal to trigger the relay terminal to initiate a handover process.
  • Step 706 the relay terminal initiates a random access process to the target network device
  • Step 707 the relay terminal sends an RRC reconfiguration complete message to the target network device
  • Step 708 the source network device performs RRC reconfiguration on other member terminals in the group
  • step 708 and steps 705, 706, and 707 may be executed in parallel without distinguishing the sequence.
  • the corresponding member terminal in the group needs to release the peer-to-peer bearer and release the corresponding direct communication interface bearer.
  • Step 709 the relay terminal sends an indication message to other member terminals in the group
  • the relay terminal and the target network device complete random access or send an RRC reconfiguration complete message to the target network device, they send indication information to other member terminals in the group, and the indication information is used to indicate that other member terminals in the group can An RRC reconfiguration complete message is sent to the target network device through the relay terminal.
  • Step 710 the member terminal in the group sends an RRC reconfiguration complete message to the target network device through the relay terminal.
  • FIG. 8 is a fifth schematic flowchart of a group handover method provided by an embodiment of the present disclosure.
  • the source network device is a source base station
  • the target network device is a target base station.
  • the specific description of each step is as follows:
  • Step 800 grouping process
  • the grouping process in this embodiment may follow the existing high-level grouping process, or may use a new grouping process, which is not limited here.
  • Step 801 the measurement report of the relay terminal or the measurement report of the member terminals in the group
  • the relay terminal performs the measurement process according to the configuration of the source network device, and reports the measurement result to the source network device when the measurement report trigger condition is met.
  • the relay terminal may support additional measurement reporting, that is, the relay terminal needs to carry the measurement results of other member terminals in the group when reporting the measurement result to the network device.
  • the measurement results of the member terminals in other groups can be obtained through the direct communication interface, specifically, periodic interaction or event-triggered interaction.
  • a trigger event can be, but not limited to, one of the following:
  • the signal quality of neighboring cells measured by other member terminals in the group is higher than the threshold.
  • indication information may be carried in the relay terminal measurement report, indicating whether the relay terminal expects to perform group handover or only relay terminal handover.
  • Step 802 the source network device executes a handover decision
  • the source network device executes a group handover decision if it is a group handover. How to determine the target cell depends on the implementation of the source network device.
  • the source network device is allowed to change the relay terminal in the group when sending a handover request to the target network device.
  • Step 803 the source network device sends a handover request message to the target network device
  • the source network device performs a handover decision. If group handover is performed, the source network device needs to send a handover request message to the target network device, and the handover request message needs to carry at least one or more of the following information:
  • the source network device when the source network device sends the handover request message to the target network device, it may also carry the measurement result of the target cell by the member terminals in the group, and the target network device may change the relay terminal in the group according to the measurement result.
  • Step 804 the target network device sends a handover request confirmation message to the source network device
  • the target network device performs a group admission decision.
  • the target network device executes the group admission decision, and the specific method can be one of the following:
  • the target network device is allowed to accept only part of the member terminals in the group, and the target network device needs to indicate the identification information of the member terminals in the group that it can accept when it replies to the source network device with a handover request confirmation message;
  • the target network device is allowed to accept only part of the bearers of the member terminals in the group.
  • the target network device replies to the source network device with a handover request confirmation message, it needs to indicate the identification information of the member terminals in the group that it can accept and the number of member terminals in the group that are accepted. Bearer information.
  • the handover request confirmation message also needs to include one or a combination of the following:
  • the direct communication interface between the member terminal in the group and the relay terminal in the group bears the configuration information
  • the direct communication interface bearer between the member terminal in the group and the relay terminal in the group Between the direct communication interface bearer between the member terminal in the group and the relay terminal in the group, the Uu interface bearer between the relay terminal in the group and the target network device, and the end-to-end bearer between the member terminal in the group and the target network device mapping relationship.
  • Step 805 the source network device performs RRC reconfiguration on the relay terminal selected by the target network device;
  • the target network device sends an RRC reconfiguration message to the relay terminal selected by the target network device, triggering the relay terminal to initiate a handover process.
  • the source network device notifies other group member terminals of the new relay terminal through the source relay terminal;
  • the member terminal in the group releases the direct communication connection with the source relay terminal, and establishes a direct communication connection with the new relay terminal.
  • Step 806 the relay terminal selected by the target network device initiates a random access process to the target network device
  • Step 807 the relay terminal selected by the target network device sends an RRC reconfiguration complete message to the target network device
  • Step 808 the source network device performs RRC reconfiguration on other member terminals in the group
  • step 808, step 805, step 806, and step 807 do not distinguish the sequence, and may be executed in parallel.
  • the corresponding member terminal in the group needs to release the peer-to-peer bearer and release the corresponding direct communication interface bearer.
  • Step 809 the relay terminal selected by the target network device sends an indication message to other member terminals in the group;
  • the relay terminal selected by the target network device and the target network device complete random access or send an RRC reconfiguration complete message to the target network device, they send indication information to other member terminals in the group, and the indication information is used to indicate other
  • the member terminals in the group can send the RRC reconfiguration complete message to the target network device through the relay terminal.
  • Step 810 the member terminal in the group sends an RRC reconfiguration complete message to the target network device through the relay terminal selected by the target network device.
  • FIG. 9 is a schematic structural diagram of a source network device provided by an embodiment of the present disclosure.
  • the source network device includes a memory 920, a transceiver 910, and a processor 900; Arrange separately.
  • the memory 920 is used to store computer programs; the transceiver 910 is used to send and receive data under the control of the processor 900 .
  • the transceiver 910 is used to receive and transmit data under the control of the processor 900 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 900 and various circuits of the memory represented by the memory 920 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 910 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.
  • the processor 900 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 900 calls the computer program stored in the memory 920 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: making a handover decision; after determining to execute the group handover, send the A handover request message, where the handover request message carries first indication information used to characterize the terminal group.
  • the first indication information includes one or more of the following information: a group identifier; identification information of a relay terminal in the group; identification information of a remote terminal in the group; a user terminal UE corresponding to a member terminal in the group contextual information.
  • the method further includes: receiving a measurement report message from the terminal, and making a handover decision based on the measurement report message.
  • the method further includes: receiving measurement report results only from the relay terminals in the group; or, receiving measurement report results from all or part of the member terminals in the group.
  • the method further includes: sending the measurement configuration only to the relay terminal in the group; or, sending the measurement configuration to all or part of the member terminals in the group, but limiting Only relay terminals in the group are allowed to report measurements.
  • the method further includes: sending a measurement configuration to each member terminal in the group that needs to perform measurement reporting.
  • the method further includes: receiving a measurement report message sent by a relay terminal in the group or a member terminal in the group, where the measurement report message includes the measurement results of the relay terminal in the group or the member terminal in the group itself, and other Measurement results of member terminals in the group.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the handover request message further includes third indication information for changing the relay terminal in the group; or, the handover request message further includes measurement results of the target cell by the member terminals in the group.
  • the method further includes: after receiving the handover request confirmation message sent by the target network device, sending a radio resource control RRC reconfiguration message to the relay terminal in the group and other member terminals in the group respectively; or, receiving the message from the target network device After the sent handover request confirmation message, if the relay terminal in the group changes, the source relay terminal in the group notifies other member terminals in the group of the new relay terminal in the group.
  • FIG. 10 is a schematic structural diagram of a target network device provided by an embodiment of the present disclosure.
  • the target network device includes a memory 1020, a transceiver 1010, and a processor 1000; Arrange separately.
  • the memory 1020 is used to store computer programs; the transceiver 1010 is used to send and receive data under the control of the processor 1000 .
  • the transceiver 1010 is used for receiving and sending data under the control of the processor 1000 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1000 and various circuits of the memory represented by the memory 1020 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • the transceiver 1010 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 when performing operations.
  • the processor 1000 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.
  • the processor 1000 calls the computer program stored in the memory 1020 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: receiving the handover request message sent by the source network device, the handover request message carries There is first indication information used to characterize the terminal group.
  • the method further includes any of the following: making a group admission decision to determine that all member terminals in the group can be admitted, and then sending a handover request confirmation message to the source network device Make a group admission decision to determine that only part of the member terminals in the group can be accepted, then send a handover request confirmation message to the source network device, the handover request confirmation message includes fourth indication information, and the fourth indication information is used to indicate the admitted group member terminals
  • the identification information of the member terminal making a group admission decision to determine that only part of the bearers of the member terminals in the group can be accepted, then sending a handover request confirmation message to the source network device, the handover request confirmation message includes fifth indication information, and the fifth indication information It is used to indicate the identification information of the accepted member terminal in the group and the bearer information that the accepted member terminal in the group is accepted.
  • the handover request message also includes the measurement result of the target cell by the member terminal in the group; the method further includes: changing the relay terminal in the group based on the measurement result.
  • the handover request acknowledgment message further includes sixth indication information indicating a new relay terminal in the group.
  • the handover request confirmation message further includes one or more of the following: end-to-end bearer configuration information between the member terminal in the group and the target network device; direct communication between the member terminal in the group and the relay terminal in the group
  • the communication interface carries configuration information;
  • the Uu interface between the relay terminal in the group and the target network device carries configuration information;
  • the direct communication interface between the member terminal in the group and the relay terminal in the group carries the configuration information, and the relay terminal in the group and the target network device carry configuration information.
  • FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in FIG. 11 , the terminal includes a memory 1120, a transceiver 1110, and a processor 1100; wherein, the processor 1100 and the memory 1120 may also be arranged physically separately.
  • the memory 1120 is used for storing computer programs; the transceiver 1110 is used for sending and receiving data under the control of the processor 1100 .
  • the transceiver 1110 is used for receiving and sending data under the control of the processor 1100 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1100 and various circuits of the memory represented by the memory 1120 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 1110 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 1130 can also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but is not limited to a keypad, display, speaker, microphone, joystick, etc.
  • the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when performing operations.
  • the processor 1100 may be a CPU, ASIC, FPGA or CPLD, and the processor may also adopt a multi-core architecture.
  • the processor 1100 calls the computer program stored in the memory 1120 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: sending a measurement report message to the source network device based on the received measurement configuration .
  • the sending the measurement report message to the source network device includes: when the terminal is a relay terminal in the group, sending the message to the source network device Send a measurement report message.
  • the measurement report message when the terminal is a relay terminal in the group, the measurement report message includes the measurement results of the relay terminal in the group itself and the measurement results of other member terminals in the group; or, when the terminal is a remote terminal in the group In the case of a terminal, the measurement report message includes the measurement results of the remote terminal in the group itself and the measurement results of other member terminals in the group.
  • the measurement results of the member terminals in the other group are obtained through periodic interaction or event-triggered interaction through the direct communication interface, and the trigger event includes one or more of the following: based on requests from other member terminals in the group; The terminal measures that the signal quality of the neighboring cell is higher than the threshold.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the method further includes: receiving a radio resource control RRC reconfiguration message sent by the source network device; or, when the relay terminal in the group changes, the relay terminal in the source group notifies other member terminals in the group A new relay terminal in the group; when the relay terminal in the group changes, the new relay terminal in the group receives the notification from the relay terminal in the source group, releases the direct communication connection with the relay terminal in the source group, And establish a direct communication connection with the relay terminal in the new group.
  • the method further includes: when the terminal is a relay terminal in the group, after completing random access with the target network device or sending an RRC reconfiguration complete message to the target network device, sending the message to other member terminals in the group.
  • the seventh indication information is used to instruct other member terminals in the group to send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • the source network device, target network device, and terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effect. Parts and beneficial effects in the embodiment that are the same as those in the method embodiment are specifically described in detail.
  • FIG. 12 is one of the schematic structural diagrams of a group switching device provided by an embodiment of the present disclosure.
  • the device is applied to a source network device. As shown in FIG. 12 , the device includes:
  • a decision unit 1200 configured to make a handover decision
  • the first sending unit 1210 is configured to send a handover request message to the target network device after determining to execute the group handover, where the handover request message carries first indication information used to characterize the terminal group.
  • the first indication information includes one or more of the following information: a group identifier; identification information of a relay terminal in the group; identification information of a remote terminal in the group; a user terminal UE corresponding to a member terminal in the group contextual information.
  • the decision unit 1200 is further configured to: receive a measurement report message from the terminal, and make a handover decision based on the measurement report message.
  • the decision unit 1200 is further configured to: receive measurement report results only from relay terminals in the group; or receive measurement report results from all or part of the member terminals in the group.
  • the first sending unit 1210 is further configured to: send the measurement configuration only to the relay terminal in the group; or, send the measurement configuration to all or part of the member terminals in the group Send the measurement configuration, but only the relay terminals in the group are allowed to report the measurement.
  • the first sending unit 1210 is further configured to: send the measurement configuration to each member terminal in the group that needs to perform measurement reporting.
  • the judgment unit 1200 is further configured to: receive a measurement report message sent by a relay terminal in the group or a member terminal in the group, where the measurement report message includes the measurement of the relay terminal in the group or the member terminal in the group results, as well as the measurement results of other member terminals in the group.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the handover request message further includes third indication information for changing the relay terminal in the group; or, the handover request message further includes measurement results of the target cell by the member terminals in the group.
  • the first sending unit 1210 is further configured to: send a radio resource control RRC reconfiguration message to the relay terminal in the group and the member terminal in the other group respectively after receiving the handover request confirmation message sent by the target network device; Or, after receiving the handover request confirmation message sent by the target network device, if the relay terminal in the group changes, the source relay terminal in the group notifies other member terminals in the group of the new relay terminal in the group.
  • FIG. 13 is the second structural schematic diagram of a group switching device provided by an embodiment of the present disclosure.
  • the device is applied to a target network device. As shown in FIG. 13 , the device includes:
  • the second receiving unit 1300 is configured to receive a handover request message sent by the source network device, where the handover request message carries first indication information used to characterize the terminal group.
  • the device also includes:
  • the second sending unit 1310 is configured to make a group admission decision and determine that all member terminals in the group can be admitted, then send a handover request confirmation message to the source network device; or, make a group admission decision and determine that only some member terminals in the group can be accepted, then send a message to the source network device
  • the source network device sends a handover request acknowledgment message, the handover request acknowledgment message includes fourth indication information, and the fourth indication information is used to indicate the identification information of the member terminals in the accepted group; or, make a group admission decision to determine that only some For partial bearers of member terminals in the group, a handover request acknowledgment message is sent to the source network device.
  • the handover request acknowledgment message includes fifth indication information, and the fifth indication information is used to indicate the identification information of the accepted member terminals in the group and the accepted Accepted bearer information of member terminals in the group.
  • the handover request message also includes measurement results of the target cell by member terminals in the group;
  • the device also includes:
  • a changing unit 1320 configured to change the relay terminal in the group based on the measurement result.
  • the handover request acknowledgment message further includes sixth indication information indicating a new relay terminal in the group.
  • the handover request confirmation message further includes one or more of the following: end-to-end bearer configuration information between the member terminal in the group and the target network device; direct communication between the member terminal in the group and the relay terminal in the group
  • the communication interface carries configuration information; the Uu interface between the relay terminal in the group and the target network device carries configuration information; the direct communication interface between the member terminal in the group and the relay terminal in the group carries configuration information, and the connection between the relay terminal in the group and the target network device
  • FIG. 14 is the third schematic structural diagram of a group switching device provided by an embodiment of the present disclosure.
  • the device is applied to a terminal. As shown in FIG. 14 , the device includes:
  • the third sending unit 1400 is configured to send a measurement report message to the source network device based on the received measurement configuration.
  • the third sending unit 1400 is configured to: send the measurement to the source network device when the terminal is a relay terminal in the group. Escalate the news.
  • the measurement report message when the terminal is a relay terminal in the group, the measurement report message includes the measurement results of the relay terminal in the group itself and the measurement results of other member terminals in the group; or, when the terminal is a remote terminal in the group In the case of a terminal, the measurement report message includes the measurement results of the remote terminal in the group itself and the measurement results of other member terminals in the group.
  • the measurement results of the member terminals in the other group are obtained through periodic interaction or event-triggered interaction through the direct communication interface, and the trigger event includes one or more of the following: based on requests from other member terminals in the group; The terminal measures that the signal quality of the neighboring cell is higher than the threshold.
  • the measurement report message includes second indication information, where the second indication information is used to indicate the desired handover type, and the handover type includes group handover and single terminal handover.
  • the device also includes:
  • the third receiving unit 1410 is configured to receive the radio resource control RRC reconfiguration message sent by the source network device; or, when the relay terminal in the group changes, the relay terminal in the source group notifies other member terminals in the group of the new The relay terminal in the group; when the relay terminal in the group changes, receive the new relay terminal in the group notified by the relay terminal in the source group, release the direct communication connection with the relay terminal in the source group, and communicate with the relay terminal in the source group The new relay terminal in the group establishes a direct communication connection.
  • the third sending unit 1400 is further configured to: when the terminal is a relay terminal in the group, after completing random access with the target network device or sending an RRC reconfiguration complete message to the target network device, send The other member terminals in the group send seventh indication information, where the seventh indication information is used to instruct other member terminals in the group to send an RRC reconfiguration complete message to the target network device through the relay terminal in the group.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • the embodiments of the present disclosure further provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned embodiments.
  • the group handover method includes: performing handover judgment; after determining to execute the group handover, sending a handover request message to the target network device, where the handover request message carries first indication information used to characterize the terminal group.
  • the embodiments of the present disclosure further provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned embodiments.
  • the group handover method includes: receiving a handover request message sent by a source network device, where the handover request message carries first indication information for characterizing a terminal group.
  • the embodiments of the present disclosure further provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned embodiments.
  • the group handover method includes: sending a measurement report message to a source network device based on the received measurement report configuration.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage e.g., CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new air interface (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless business
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • the network device involved in the embodiments of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long-term evolution (long term evolution, LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present disclosure.
  • a network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node
  • the terminal involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal may be different.
  • the terminal may be called a user terminal or user equipment (User Equipment, UE).
  • UE User Equipment
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • a mobile terminal equipment such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in the embodiments of the present disclosure.
  • MIMO transmission can be Single User MIMO (Single User MIMO, SU-MIMO) or Multi-User MIMO ( Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission, etc.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

本公开实施例提供一种组切换方法、设备、装置及存储介质，其中该方法应用于源网络设备，包括：进行切换判决(400)；确定执行组切换后，向目标网络设备发送切换请求消息，该切换请求消息中携带有用于表征终端组的第一指示信息(401)。通过本公开实施例提供的组切换方法、设备、装置及存储介质，源网络设备在进行切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，且切换请求消息中携带有用于表征终端组的第一指示信息，从而能够支持组内中继终端和其服务的组内远端终端一起进行组切换，填补了U2N中继通信系统组切换的空白。

Description

组切换方法、设备、装置及存储介质
相关申请的交叉引用
本申请要求于2021年06月28日提交的申请号为2021107220765，发明名称为“组切换方法、设备、装置及存储介质”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种组切换方法、设备、装置及存储介质。
背景技术
传统的无线通信采用蜂窝网络通信方式，即终端和网络侧设备通过Uu接口进行上下行数据/控制信息的传输。为了扩展网络覆盖，一种解决方案就是引入用户终端(User Equipment，UE)到网络的中继，UE-to-Network Relay。UE-to-Network Relay可以是一个具有中继功能的终端，对于UE-to-Network Relay，Relay(中继终端)和网络之间的接口使用Uu接口，和被中继终端(可称为远端终端)之间使用直接通信接口，Relay和网络之间的链路对远端终端而言可以称为回程链路(Backhaul link，BH)。
引入中继场景后，某些情况下(比如远端终端是可穿戴设备，中继终端是可穿戴设备使用者的手机)，远端终端和中继终端总是一起移动的，因此，如何支持中继终端和其服务的远端终端一起进行组切换，成为亟需解决的问题。
发明内容
针对现有技术存在的问题，本公开实施例提供一种组切换方法、设备、装置及存储介质。
第一方面，本公开实施例提供一种组切换方法，应用于源网络设备，包 括：
进行切换判决；
确定执行组切换后，向目标网络设备发送切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述第一指示信息包括如下信息中的一个或者多个：
组标识；
组内中继终端的标识信息；
组内远端终端的标识信息；
组内成员终端对应的用户终端UE上下文信息。
可选地，所述方法还包括：
接收终端的测量上报消息，并基于所述测量上报消息进行所述切换判决。
可选地，所述方法还包括：
仅从组内中继终端接收测量上报结果；或，
从全部或者部分组内成员终端接收测量上报结果。
可选地，若仅从组内中继终端接收测量上报结果，所述方法还包括：
仅向组内中继终端发送测量配置；或，
向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
可选地，若全部或者部分组内成员终端进行测量上报，所述方法还包括：
向组内需要进行测量上报的每个组内成员终端发送测量配置。
可选地，所述方法还包括：
接收组内中继终端或者组内成员终端发送的测量上报消息，所述测量上报消息中包括有所述组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
可选地，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，
所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
可选地，所述方法还包括：
接收所述目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，
接收所述目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
第二方面，本公开实施例还提供一种组切换方法，应用于目标网络设备，包括：
接收源网络设备发送的切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述接收源网络设备发送的切换请求消息后，所述方法还包括以下任一项：
进行组接纳判决确定能够接纳所有组内成员终端，则向所述源网络设备发送切换请求确认消息；
进行组接纳判决确定仅能够接纳部分组内成员终端，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第四指示信息，所述第四指示信息用于指示被接纳的组内成员终端的标识信息；
进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第五指示信息，所述第五指示信息用于指示被接纳的组内成员终端的标识信息以及所述被接纳的组内成员终端被接纳的承载信息。
可选地，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果；
所述方法还包括：
基于所述测量结果变更组内中继终端。
可选地，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
可选地，所述切换请求确认消息中还包括以下一项或多项：
组内成员终端与目标网络设备之间端到端承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载配置信息；
组内中继终端与目标网络设备之间Uu接口承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；
组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
第三方面，本公开实施例还提供一种组切换方法，应用于终端，包括：
基于接收到的测量配置，向源网络设备发送测量上报消息。
可选地，若所述测量配置仅允许组内中继终端进行测量上报，则所述向源网络设备发送测量上报消息，包括：
在所述终端为所述组内中继终端的情况下，向源网络设备发送测量上报消息。
可选地，在所述终端为组内中继终端的情况下，所述测量上报消息中包括所述组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，
在所述终端为组内远端终端的情况下，所述测量上报消息中包括所述组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述其他组内成员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，所述触发事件包括以下一项或多项：
基于其他组内成员终端的请求；
其他组内成员终端测量到邻小区信号质量高于门限。
可选地，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
可选地，所述方法还包括：
接收所述源网络设备发送的无线资源控制RRC重配消息；或，
在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；
在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
可选地，所述方法还包括：
在所述终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向所述目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，所述第七指示信息用于指示其他组内成员终端通过所述组内中继终端向所述目标网络设备发送RRC重配完成消息。
第四方面，本公开实施例还提供一种源网络设备，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第一方面所述的组切换方法的步骤。
第五方面，本公开实施例还提供一种目标网络设备，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第二方面所述的组切换方法的步骤。
第六方面，本公开实施例还提供一种终端，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第三 方面所述的组切换方法的步骤。
第七方面，本公开实施例还提供一种组切换装置，应用于源网络设备，包括：
判决单元，用于进行切换判决；
第一发送单元，用于确定执行组切换后，向目标网络设备发送切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
第八方面，本公开实施例还提供一种组切换装置，应用于目标网络设备，包括：
第二接收单元，用于接收源网络设备发送的切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
第九方面，本公开实施例还提供一种组切换装置，应用于终端，包括：
第三发送单元，用于基于接收到的测量上报配置，向源网络设备发送测量上报消息。
第十方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行如上所述第一方面所述的组切换方法的步骤，或执行如上所述第二方面所述的组切换方法的步骤，或执行如上所述第三方面所述的组切换方法的步骤。
本公开实施例提供的组切换方法、设备、装置及存储介质，源网络设备在进行切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，且切换请求消息中携带有用于表征终端组的第一指示信息，从而能够支持组内中继终端和其服务的组内远端终端一起进行组切换，填补了U2N中继通信系统组切换的空白。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术提供的传统无线通信方式示意图；
图2是现有技术提供的设备到设备直接通信方式示意图；
图3是现有技术提供的UE-to-Network Relay示意图；
图4是本公开实施例提供的组切换方法的流程示意图之一；
图5是本公开实施例提供的组切换方法的流程示意图之二；
图6是本公开实施例提供的组切换方法的流程示意图之三；
图7是本公开实施例提供的组切换方法的流程示意图之四；
图8是本公开实施例提供的组切换方法的流程示意图之五；
图9是本公开实施例提供的源网络设备的结构示意图；
图10是本公开实施例提供的目标网络设备的结构示意图；
图11是本公开实施例提供的终端的结构示意图；
图12是本公开实施例提供的组切换装置的结构示意图之一；
图13是本公开实施例提供的组切换装置的结构示意图之二；
图14是本公开实施例提供的组切换装置的结构示意图之三。
具体实施方式
本公开实施例中术语“和/或”，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：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
为了便于更加清晰地理解本公开各实施例，首先对一些相关的背景知识进行如下介绍。
(1)蜂窝网络通信
图1为现有技术提供的传统无线通信方式示意图，如图1所示，传统的无线通信采用蜂窝网络通信方式，即终端和网络侧设备通过Uu接口进行上下行数据/控制信息的传输。
(2)直接通信
图2为现有技术提供的设备到设备直接通信方式示意图，如图2所示，直接通信是指邻近的终端可以在近距离范围内通过直接通信链路(也称为Sidelink或者接近通信端口5(Proximity Communication Port 5，PC5))进行数据传输的方式。Sidelink链路对应的无线接口称为Sidelink接口(也称为直接通信接口或者PC5接口)。
(3)中继
图3为现有技术提供的UE-to-Network Relay示意图，如图3所示，为了扩展网络覆盖，一种解决方案就是引入UE-to-Network Relay。UE-to-Network Relay可以是一个具有中继功能的终端，对于UE-to-Network Relay，Relay(中继终端)和网络之间的接口使用Uu接口，和被中继终端(可称为远端终端)之间使用直接通信接口，Relay和网络之间的链路对远端终端而言可以称为回程链路。
中继场景下的承载分为以下三类：
直接通信接口承载：即远端终端和中继终端之间的承载；
远端终端和网络设备之间的端到端承载：即远端终端和网络设备之间建立的端到端承载；
远端终端在Uu接口回程链路的承载：即中继终端和网络设备之间用于承载远端终端数据的承载。
中继场景下，连接分为以下两类：
直接连接：UE直接连接到网络设备称为直接连接；
非直接连接：UE通过中继终端连接到网络设备称为非直接连接。
目前，对于引入中继场景下的组切换还没有明确的解决方案，为此，本公开各实施例提供一种支持中继终端和其服务的远端终端一起进行组切换的解决方案，能够填补终端到网络(UE-to-Network，U2N)中继通信系统组切 换的空白。
图4为本公开实施例提供的组切换方法的流程示意图之一，该方法应用于源网络设备(例如源基站)，如图4所示，该方法包括如下步骤：
步骤400、进行切换判决。
具体地，执行组切换之前，终端所连接的源网络设备进行切换判决，如确定执行组切换或是单个终端的切换，确定将终端由源网络设备切换至哪个目标网络设备(例如目标基站)等等。具体如何进行切换判决取决于源网络设备的实现，在此不做限制。
步骤401、确定执行组切换后，向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
具体地，源网络设备进行组切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述第一指示信息可以包括如下信息中的一个或者多个：
组标识；
组内中继终端的标识信息；
组内远端终端的标识信息；
组内成员终端对应的用户终端UE上下文信息。
需要说明的是，组通信的组内成员终端包括组内中继终端和组内远端终端。例如一个终端组可以包括一个组内中继终端以及一个或多个组内远端终端。进一步地，一个终端组还可以包括不仅一个组内中继终端。
本公开实施例提供的组切换方法，源网络设备在进行切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，且切换请求消息中携带有用于表征终端组的第一指示信息，从而能够支持组内中继终端和其服务的组内远端终端一起进行组切换，填补了U2N中继通信系统组切换的空白。
可选地，所述方法还包括：
接收终端的测量上报消息，并基于测量上报消息进行切换判决。
具体地，本公开实施例中，终端可以按照源网络设备的配置执行测量过 程，当满足测量上报触发条件后，向源网络设备上报测量结果，源网络设备可以在接收到终端的测量上报消息后，基于测量上报消息进行切换判决。
本公开实施例提供的组切换方法，源网络设备可以基于终端的测量上报消息进行切换判决，从而使得切换判决的过程更加准确，能够更好地支持组内中继终端和其服务的组内远端终端一起进行组切换。
可选地，所述方法还包括：
仅从组内中继终端接收测量上报结果；或，
从全部或者部分组内成员终端接收测量上报结果。
具体地，本公开实施例中，针对组切换的测量上报，可以是仅组内中继终端需要执行测量上报，也可以是全部或者部分组内成员终端进行测量上报。
源网络设备接收终端的测量上报结果，可以是仅从组内中继终端接收测量上报结果，也可以是从全部或者部分的组内成员终端接收测量上报结果，具体可以通过源网络设备向终端发送的测量配置来实现。
可选地，若仅从组内中继终端接收测量上报结果，所述方法还包括：
仅向组内中继终端发送测量配置；或，
向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
具体地，若仅组内中继终端需要执行测量上报，源网络设备可以仅向组内中继终端发送测量配置，即仅针对组内中继终端配置测量上报，无需针对组内远端终端配置测量上报，一旦组内中继终端变更，需要指示给源网络设备，以便源网络设备变更测量配置。
源网络设备也可以向全部或者部分组内成员终端发送测量配置，即针对全部或者部分组内成员终端配置测量上报，但是限制仅允许组内中继终端进行测量上报，即如果该组内成员终端在组内的角色不是中继终端，则禁止测量上报。
可选地，若全部或者部分组内成员终端进行测量上报，所述方法还包括：
向组内需要进行测量上报的每个组内成员终端发送测量配置。
具体地，如果是全部或者部分组内成员终端进行测量上报，源网络设备 可以向组内需要进行测量上报的每个组内成员终端发送测量配置，从而组内成员终端可以按照源网络设备的配置执行测量过程，当满足测量上报触发条件后，向源网络设备上报测量结果。
可选地，所述方法还包括：
接收组内中继终端或者组内成员终端发送的测量上报消息，测量上报消息中包括有组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
具体地，源网络设备可以配置组内中继终端或者组内成员终端上报测量结果时，还需要上报其他组内成员终端的测量结果，从而源网络设备接收到组内中继终端或者组内成员终端发送的测量上报消息后，可以基于测量上报消息中携带的组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果，进行切换判决。
可选地，所述其他组内成员终端的测量结果可以是进行测量上报的组内中继终端或者组内成员终端通过直接通信接口获取的，具体可以是周期性交互或者事件触发交互获取。触发事件可以包括以下一项或多项：
基于其他组内成员终端的请求；
其他组内成员终端测量到邻小区信号质量高于门限。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
具体地，本公开实施例中，终端可以在测量上报消息中携带第二指示信息，第二指示信息用于指示终端期望执行的切换类型，如终端期望执行的是组切换还是仅单个终端的切换，从而源网络设备接收到测量上报消息后，可以基于其中的第二指示信息辅助进行切换判决。
可选地，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，
所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
具体地，本公开实施例中，源网络设备可以在接收到上述组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果后， 基于这些测量结果确定变更组内中继终端，并在向目标网络设备发送的切换请求消息中包括变更组内中继终端的第三指示信息，所述第三指示信息的内容可以是当前组内中继终端标识信息以及源网络设备期望的变更后的组内中继终端标识信息。
源网络设备也可以将组内成员终端针对目标小区的测量结果，携带在切换请求消息中，发送给目标网络设备，从而使目标网络设备可以根据这些测量结果确定是否变更组内中继终端。
可选地，所述方法还包括：
接收目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，
接收目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
具体地，本公开实施例中，目标网络设备可以在接收到源网络设备发送的切换请求消息后执行组接纳判决，并向源网络设备回复切换请求确认消息，源网络设备接收到切换请求确认消息后，可以执行如下操作之一或者组合：
向组内中继终端和其他组内成员终端分别发送无线资源控制(Radio Resource Control，RRC)重配消息，触发组内中继终端和其他组内成员终端发起切换过程；
如果组内中继终端发生变更，源网络设备可以通过源组内中继终端通知其他组内成员终端新的组内中继终端。
在源网络设备通过源组内中继终端通知其他组内成员终端新的组内中继终端后，组内成员终端可以释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
可选地，组内中继终端在和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，可以向组内成员终端发送指示信息，所述指示信息用于指示组内成员终端可以通过组内中继终端向目标网络设备发送RRC重配完成消息。
图5为本公开实施例提供的组切换方法的流程示意图之二，该方法应用 于目标网络设备(例如目标基站)，如图5所示，该方法包括如下步骤：
步骤500、接收源网络设备发送的切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
具体地，本公开实施例中，源网络设备(例如源基站)进行组切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息，目标网络设备接收源网络设备发送的切换请求消息，并进行组接纳判决。
可选地，所述第一指示信息可以包括如下信息中的一个或者多个：
组标识；
组内中继终端的标识信息；
组内远端终端的标识信息；
组内成员终端对应的用户终端UE上下文信息。
本公开实施例提供的组切换方法，源网络设备在进行切换判决确定执行组切换后，可以向目标网络设备发送切换请求消息，且切换请求消息中携带有用于表征终端组的第一指示信息，从而能够支持组内中继终端和其服务的组内远端终端一起进行组切换，填补了U2N中继通信系统组切换的空白。
可选地，所述接收源网络设备发送的切换请求消息后，所述方法还包括以下任一项：
进行组接纳判决确定能够接纳所有组内成员终端，则向源网络设备发送切换请求确认消息；
进行组接纳判决确定仅能够接纳部分组内成员终端，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第四指示信息，第四指示信息用于指示被接纳的组内成员终端的标识信息；
进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第五指示信息，第五指示信息用于指示被接纳的组内成员终端的标识信息以及被接纳的组内成员终端被接纳的承载信息。
具体地，本公开实施例中，目标网络设备可以在接收到源网络设备发送 的切换请求消息后，执行组接纳判决，具体方式可以是如下之一：
只有当目标网络设备确定能够接纳所有组内成员终端时，目标网络设备才向源网络设备回复切换请求确认消息；
目标网络设备确定只接纳部分组内成员终端，此时目标网络设备可以向源网络设备回复切换请求确认消息，该切换请求确认消息中包括有第四指示信息，第四指示信息用于指示被接纳的(即目标网络设备能够接纳的)组内成员终端的标识信息。
目标网络设备确定只接纳部分组内成员终端的部分承载，此时目标网络设备可以向源网络设备回复切换请求确认消息，该切换请求确认消息中包括有第五指示信息，第五指示信息用于指示被接纳的组内成员终端的标识信息以及被接纳的组内成员终端被接纳的承载信息。
可选地，上述切换请求确认消息中还可以包括以下任一项或其组合：
组内成员终端与目标网络设备之间端到端承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载配置信息；
组内中继终端与目标网络设备之间Uu接口承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；
组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
可选地，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果；
所述方法还包括：
基于测量结果变更组内中继终端。
具体地，本公开实施例中，源网络设备可以配置组内中继终端或者组内成员终端上报测量结果时，还需要上报其他组内成员终端的测量结果，从而源网络设备接收到组内中继终端或者组内成员终端发送的测量上报消息后，可以将组内成员终端针对目标小区的测量结果，携带在切换请求消息中，发送给目标网络设备，目标网络设备接收到切换请求消息后，可以根据这些测量结果确定是否变更组内中继终端。
可选地，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
具体地，在目标网络设备变更组内中继终端的情况下，目标网络设备发送给源网络设备的切换请求确认消息中还可以包括指示新的组内中继终端的第六指示信息。
图6为本公开实施例提供的组切换方法的流程示意图之三，该方法应用于终端，如图6所示，该方法包括如下步骤：
步骤600、基于接收到的测量配置，向源网络设备发送测量上报消息。
具体地，本公开实施例中，终端可以是组通信中的组内中继终端，也可以是组通信中的组内远端终端，终端可以按照源网络设备的配置执行测量过程，当满足测量上报触发条件后，基于测量配置向源网络设备发送测量消息，从而源网络设备可以在接收到终端的测量上报消息后，基于测量上报消息进行切换判决。
本公开实施例提供的组切换方法，源网络设备可以基于终端的测量上报消息进行切换判决，从而使得切换判决的过程更加准确，能够更好地支持组内中继终端和其服务的组内远端终端一起进行组切换。
可选地，若所述测量配置仅允许组内中继终端进行测量上报，则所述向源网络设备发送测量上报消息，包括：
在终端为组内中继终端的情况下，向源网络设备发送测量上报消息。
具体地，本公开实施例中，若源网络设备仅允许组内中继终端进行测量上报，源网络设备可以仅向组内中继终端发送测量配置，也可以向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上 报，从而在终端为组内中继终端的情况下，由组内中继终端向源网络设备发送测量上报消息。
可选地，在终端为组内中继终端的情况下，测量上报消息中包括组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，
在终端为组内远端终端的情况下，测量上报消息中包括组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
具体地，本公开实施例中，源网络设备可以配置组内中继终端或者组内远端终端上报测量结果时，还需要上报其他组内成员终端的测量结果，从而源网络设备接收到组内中继终端或者组内远端终端发送的测量上报消息后，可以基于测量上报消息中携带的组内中继终端或者组内远端终端自身的测量结果，以及其他组内成员终端的测量结果，进行切换判决。
可选地，所述其他组内成员终端的测量结果可以通过直接通信接口周期性交互或者事件触发交互获取，其中触发事件可以包括以下一项或多项：
基于其他组内成员终端的请求；
其他组内成员终端测量到邻小区信号质量高于门限。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
具体地，本公开实施例中，终端可以在测量上报消息中携带第二指示信息，第二指示信息用于指示终端期望执行的切换类型，如终端期望执行的是组切换还是仅单个终端的切换，从而源网络设备接收到测量上报消息后，可以基于其中的第二指示信息辅助进行切换判决。
可选地，所述方法还包括：
接收源网络设备发送的无线资源控制RRC重配消息；或，
在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；
在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
具体地，本公开实施例中，目标网络设备可以在接收到源网络设备发送的切换请求消息后执行组接纳判决，并向源网络设备回复切换请求确认消息，源网络设备接收到切换请求确认消息后，可以执行如下操作之一或者组合：
向组内中继终端和其他组内成员终端分别发送RRC重配消息，触发组内中继终端和其他组内成员终端发起切换过程；
如果组内中继终端发生变更，源网络设备可以通过源组内中继终端通知其他组内成员终端新的组内中继终端。
在源网络设备通过源组内中继终端通知其他组内成员终端新的组内中继终端后，组内成员终端可以释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
可选地，所述方法还包括：
在终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，第七指示信息用于指示其他组内成员终端通过组内中继终端向目标网络设备发送RRC重配完成消息。
具体地，本公开实施例中，组内中继终端在和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，可以向组内成员终端发送第七指示信息，所述第七指示信息用于指示组内成员终端可以通过组内中继终端向目标网络设备发送RRC重配完成消息。
图7为本公开实施例提供的组切换方法的流程示意图之四，如图7所示，本实施例中源网络设备为源基站，目标网络设备为目标基站。其中，各个步骤的具体描述如下：
步骤700、成组过程；
具体地，本实施例中成组过程可以沿用现有高层成组过程，也可以使用新的成组过程，在此不做限制。
步骤701、中继终端测量上报；
具体地，中继终端按照源网络设备的配置执行测量过程，当满足测量上报触发条件后，向源网络设备上报测量结果。
本实施例中，组内仅中继终端需要执行测量上报，具体实现方式可以是如下之一：
源网络设备仅针对组内中继终端配置测量上报，无需针对组内远端终端配置测量上报，一旦组内中继终端变更，需要指示给源网络设备，以便源网络设备变更测量配置；
源网络设备可以针对每个组内成员终端都配置测量上报，但是如果该终端在组内的角色不是中继终端，则禁止测量上报。
可选地，中继终端测量上报中可以携带指示信息，指示中继终端期望执行的是组切换还是仅是中继终端的切换。
步骤702、源网络设备执行切换判决；
具体地，源网络设备接收到中继终端的测量上报后，如果是组切换，执行组切换判决。如何确定目标小区取决于源网络设备的实现。
步骤703、源网络设备向目标网络设备发送切换请求消息；
具体地，源网络设备执行切换判决，若执行的是组切换，则源网络设备需要向目标网络设备发送切换请求消息，所述切换请求消息中至少需要携带如下信息中的一个或者多个：
组标识；
组内中继终端的标识信息；
组内远端终端的标识信息；
组内每个终端对应的UE上/下文信息。
步骤704、目标网络设备向源网络设备发送切换请求确认消息；
具体地，目标网络设备执行组接纳判决。目标网络设备执行组接纳判决，具体方式可以是如下之一：
只有当目标网络设备能够接纳所有组内成员终端才允许向源网络设备回复切换请求确认消息；
允许目标网络设备只接纳部分组内成员终端，目标网络设备向源网络设备回复切换请求确认消息时需要指示其可以接纳的组内成员终端标识信息；
允许目标网络设备只接纳部分组内成员终端的部分承载，目标网络设备 向源网络设备回复切换请求确认消息时需要指示其可以接纳的组内成员终端标识信息以及所述组内成员终端被接纳的承载信息。
除了上述提到的切换请求确认消息需要包含的内容外，所述切换请求确认消息中还需要包括如下之一或者组合：
组内成员终端与目标网络设备之间端到端承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载配置信息；
组内中继终端与目标网络设备之间Uu接口的承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口的承载之间的映射关系；
组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与网络设备之间端到端承载之间的映射关系；
组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
步骤705、源网络设备对中继终端执行RRC重配；
具体地，源网络设备向中继终端发送RRC重配消息，触发中继终端发起切换过程。
步骤706、中继终端向目标网络设备发起随机接入过程；
步骤707、中继终端向目标网络设备发送RRC重配完成消息；
步骤708、源网络设备对其他组内成员终端执行RRC重配；
具体地，上述步骤708和步骤705、706、707不区分先后顺序，可以并行执行。
可选地，对于未被目标网络设备接纳的端到端承载，对应的组内成员终端需要释放所述端到端承载，并释放对应的直接通信接口承载。
步骤709、中继终端向其他组内成员终端发送指示消息；
具体地，中继终端和目标网络设备完成随机接入或者向目标网络设备发 送RRC重配完成消息后，向其他组内成员终端发送指示信息，所述指示信息用于指示其他组内成员终端可以通过中继终端向目标网络设备发送RRC重配完成消息了。
步骤710、组内成员终端通过中继终端向目标网络设备发送RRC重配完成消息。
图8为本公开实施例提供的组切换方法的流程示意图之五，如图8所示，本实施例中源网络设备为源基站，目标网络设备为目标基站。其中，各个步骤的具体描述如下：
步骤800、成组过程；
具体地，本实施例中成组过程可以沿用现有高层成组过程，也可以使用新的成组过程，在此不做限制。
步骤801、中继终端的测量上报或者组内成员终端的测量上报；
具体地，以中继终端测量上报为例，中继终端按照源网络设备的配置执行测量过程，当满足测量上报触发条件后，向源网络设备上报测量结果。
可选地，中继终端可以支持附加测量上报，即中继终端向网络设备上报测量结果时需要携带其他组内成员终端的测量结果。其他组内成员终端的测量结果可以通过直接通信接口获取，具体可以是周期性交互或者事件触发交互。触发事件可以是但不限于如下之一：
基于其他组内成员终端的请求；
其他组内成员终端测量到邻小区信号质量高于门限。
可选地，中继终端测量上报中可以携带指示信息，指示中继终端期望执行的是组切换还是仅是中继终端的切换。
步骤802、源网络设备执行切换判决；
具体地，源网络设备接收到中继终端的测量上报后，如果是组切换，执行组切换判决。如何确定目标小区取决于源网络设备的实现。
可选地，本步骤中允许源网络设备向目标网络设备发送切换请求时变更组内的中继终端。
步骤803、源网络设备向目标网络设备发送切换请求消息；
具体地，源网络设备执行切换判决，若执行的是组切换，则源网络设备需要向目标网络设备发送切换请求消息，所述切换请求消息中至少需要携带如下信息中的一个或者多个：
组标识；
组内中继终端的标识信息；
组内远端终端的标识信息；
组内每个终端对应的UE上/下文信息。
可选地，源网络设备向目标网络设备发送切换请求消息时还可以携带组内成员终端针对目标小区的测量结果，目标网络设备可以根据所述测量结果变更组内的中继终端。
步骤804、目标网络设备向源网络设备发送切换请求确认消息；
具体地，目标网络设备执行组接纳判决。目标网络设备执行组接纳判决，具体方式可以是如下之一：
只有当目标网络设备能够接纳所有组内成员终端才允许向源网络设备回复切换请求确认消息；
允许目标网络设备只接纳部分组内成员终端，目标网络设备向源网络设备回复切换请求确认消息时需要指示其可以接纳的组内成员终端标识信息；
允许目标网络设备只接纳部分组内成员终端的部分承载，目标网络设备向源网络设备回复切换请求确认消息时需要指示其可以接纳的组内成员终端标识信息以及所述组内成员终端被接纳的承载信息。
除了上述提到的切换请求确认消息需要包含的内容外，所述切换请求确认消息中还需要包括如下之一或者组合：
组内成员终端与目标网络设备之间端到端承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载配置信息；
组内中继终端与目标网络设备之间Uu接口的承载配置信息；
组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口的承载之间的映射关系；
组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与 网络设备之间端到端承载之间的映射关系；
组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
步骤805、源网络设备对目标网络设备选中的中继终端执行RRC重配；
具体地，所述目标网络设备向目标网络设备选中的中继终端发送RRC重配消息，触发所述中继终端发起切换过程。
如果目标网络设备选中的中继终端和源中继终端不同，即中继终端发生变更，源网络设备通过源中继终端通知其他组内成员终端新的中继终端；
组内成员终端释放和源中继终端的直接通信连接，并和新的中继终端建立直接通信连接。
步骤806、目标网络设备选中的中继终端向目标网络设备发起随机接入过程；
步骤807、目标网络设备选中的中继终端向目标网络设备发送RRC重配完成消息；
步骤808、源网络设备对其他组内成员终端执行RRC重配；
具体地，上述步骤808和步骤805、步骤806、步骤807不区分先后顺序，可以并行执行。
可选地，对于未被目标网络设备接纳的端到端承载，对应的组内成员终端需要释放所述端到端承载，并释放对应的直接通信接口承载。
步骤809、目标网络设备选中的中继终端向其他组内成员终端发送指示消息；
具体地，目标网络设备选中的中继终端和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送指示信息，所述指示信息用于指示其他组内成员终端可以通过中继终端向目标网络设备发送RRC重配完成消息了。
步骤810、组内成员终端通过目标网络设备选中的中继终端向目标网络设备发送RRC重配完成消息。
本公开各实施例提供的方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
图9为本公开实施例提供的源网络设备的结构示意图，如图9所示，该源网络设备包括存储器920，收发机910和处理器900；其中，处理器900与存储器920也可以物理上分开布置。
存储器920，用于存储计算机程序；收发机910，用于在处理器900的控制下收发数据。
具体地，收发机910用于在处理器900的控制下接收和发送数据。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。
处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。
处理器900可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器900通过调用存储器920存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：进行切换判决；确定执行组切换后，向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述第一指示信息包括如下信息中的一个或者多个：组标识；组内中继终端的标识信息；组内远端终端的标识信息；组内成员终端对应的用户终端UE上下文信息。
可选地，所述方法还包括：接收终端的测量上报消息，并基于测量上报消息进行切换判决。
可选地，所述方法还包括：仅从组内中继终端接收测量上报结果；或，从全部或者部分组内成员终端接收测量上报结果。
可选地，若仅从组内中继终端接收测量上报结果，所述方法还包括：仅向组内中继终端发送测量配置；或，向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
可选地，若全部或者部分组内成员终端进行测量上报，所述方法还包括：向组内需要进行测量上报的每个组内成员终端发送测量配置。
可选地，所述方法还包括：接收组内中继终端或者组内成员终端发送的测量上报消息，测量上报消息中包括有组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
可选地，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
可选地，所述方法还包括：接收目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，接收目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
图10为本公开实施例提供的目标网络设备的结构示意图，如图10所示，该目标网络设备包括存储器1020，收发机1010和处理器1000；其中，处理器1000与存储器1020也可以物理上分开布置。
存储器1020，用于存储计算机程序；收发机1010，用于在处理器1000的控制下收发数据。
具体地，收发机1010用于在处理器1000的控制下接收和发送数据。
其中，在图10中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1000代表的一个或多个处理器和存储器1020代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机1010可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。
处理器1000负责管理总线架构和通常的处理，存储器1020可以存储处理器1000在执行操作时所使用的数据。
处理器1000可以是CPU、ASIC、FPGA或CPLD，处理器也可以采用多核架构。
处理器1000通过调用存储器1020存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：接收源网络设备发送的切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述接收源网络设备发送的切换请求消息后，所述方法还包括以下任一项：进行组接纳判决确定能够接纳所有组内成员终端，则向源网络设备发送切换请求确认消息；进行组接纳判决确定仅能够接纳部分组内成员终端，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第四指示信息，第四指示信息用于指示被接纳的组内成员终端的标识信息；进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第五指示信息，第五指示信息用于指示被接纳的组内成员终端的标识信息以及被接纳的组内成员终端被接纳的承载信息。
可选地，所述切换请求消息中还包括有组内成员终端针对目标小区的测 量结果；所述方法还包括：基于测量结果变更组内中继终端。
可选地，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
可选地，所述切换请求确认消息中还包括以下一项或多项：组内成员终端与目标网络设备之间端到端承载配置信息；组内成员终端与组内中继终端之间直接通信接口承载配置信息；组内中继终端与目标网络设备之间Uu接口承载配置信息；组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
图11为本公开实施例提供的终端的结构示意图，如图11所示，该终端包括存储器1120，收发机1110和处理器1100；其中，处理器1100与存储器1120也可以物理上分开布置。
存储器1120，用于存储计算机程序；收发机1110，用于在处理器1100的控制下收发数据。
具体地，收发机1110用于在处理器1100的控制下接收和发送数据。
其中，在图11中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1100代表的一个或多个处理器和存储器1120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机1110可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口1130还可以是能够外接内接需要设备的接口，连接的 设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1100负责管理总线架构和通常的处理，存储器1120可以存储处理器1100在执行操作时所使用的数据。
处理器1100可以是CPU、ASIC、FPGA或CPLD，处理器也可以采用多核架构。
处理器1100通过调用存储器1120存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：基于接收到的测量配置，向源网络设备发送测量上报消息。
可选地，若所述测量配置仅允许组内中继终端进行测量上报，则所述向源网络设备发送测量上报消息，包括：在终端为组内中继终端的情况下，向源网络设备发送测量上报消息。
可选地，在终端为组内中继终端的情况下，测量上报消息中包括组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，在终端为组内远端终端的情况下，测量上报消息中包括组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述其他组内成员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，触发事件包括以下一项或多项：基于其他组内成员终端的请求；其他组内成员终端测量到邻小区信号质量高于门限。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
可选地，所述方法还包括：接收源网络设备发送的无线资源控制RRC重配消息；或，在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
可选地，所述方法还包括：在终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，第七指示信息用于指示其他组内成员终端 通过组内中继终端向目标网络设备发送RRC重配完成消息。
在此需要说明的是，本公开实施例提供的上述源网络设备、目标网络设备和终端，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图12为本公开实施例提供的组切换装置的结构示意图之一，该装置应用于源网络设备，如图12所示，该装置包括：
判决单元1200，用于进行切换判决；
第一发送单元1210，用于确定执行组切换后，向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述第一指示信息包括如下信息中的一个或者多个：组标识；组内中继终端的标识信息；组内远端终端的标识信息；组内成员终端对应的用户终端UE上下文信息。
可选地，所述判决单元1200，还用于：接收终端的测量上报消息，并基于测量上报消息进行切换判决。
可选地，所述判决单元1200，还用于：仅从组内中继终端接收测量上报结果；或，从全部或者部分组内成员终端接收测量上报结果。
可选地，若仅从组内中继终端接收测量上报结果，所述第一发送单元1210，还用于：仅向组内中继终端发送测量配置；或，向全部或者部分组内成员终端发送测量配置，但仅允许组内中继终端进行测量上报。
可选地，若全部或者部分组内成员终端进行测量上报，所述第一发送单元1210，还用于：向组内需要进行测量上报的每个组内成员终端发送测量配置。
可选地，所述判决单元1200，还用于：接收组内中继终端或者组内成员终端发送的测量上报消息，测量上报消息中包括有组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
可选地，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
可选地，所述第一发送单元1210，还用于：接收目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，接收目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
图13为本公开实施例提供的组切换装置的结构示意图之二，该装置应用于目标网络设备，如图13所示，该装置包括：
第二接收单元1300，用于接收源网络设备发送的切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
可选地，所述装置还包括：
第二发送单元1310，用于进行组接纳判决确定能够接纳所有组内成员终端，则向源网络设备发送切换请求确认消息；或，进行组接纳判决确定仅能够接纳部分组内成员终端，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第四指示信息，第四指示信息用于指示被接纳的组内成员终端的标识信息；或，进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向源网络设备发送切换请求确认消息，切换请求确认消息中包括有第五指示信息，第五指示信息用于指示被接纳的组内成员终端的标识信息以及被接纳的组内成员终端被接纳的承载信息。
可选地，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果；
所述装置还包括：
变更单元1320，用于基于测量结果变更组内中继终端。
可选地，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
可选地，所述切换请求确认消息中还包括以下一项或多项：组内成员终 端与目标网络设备之间端到端承载配置信息；组内成员终端与组内中继终端之间直接通信接口承载配置信息；组内中继终端与目标网络设备之间Uu接口承载配置信息；组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
图14为本公开实施例提供的组切换装置的结构示意图之三，该装置应用于终端，如图14所示，该装置包括：
第三发送单元1400，用于基于接收到的测量配置，向源网络设备发送测量上报消息。
可选地，若所述测量配置仅允许组内中继终端进行测量上报，则所述第三发送单元1400，用于：在终端为组内中继终端的情况下，向源网络设备发送测量上报消息。
可选地，在终端为组内中继终端的情况下，测量上报消息中包括组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，在终端为组内远端终端的情况下，测量上报消息中包括组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
可选地，所述其他组内成员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，触发事件包括以下一项或多项：基于其他组内成员终端的请求；其他组内成员终端测量到邻小区信号质量高于门限。
可选地，所述测量上报消息中包括有第二指示信息，第二指示信息用于指示期望执行的切换类型，切换类型包括组切换和单个终端的切换。
可选地，所述装置还包括：
第三接收单元1410，用于接收源网络设备发送的无线资源控制RRC重 配消息；或，在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
可选地，所述第三发送单元1400，还用于：在终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，第七指示信息用于指示其他组内成员终端通过组内中继终端向目标网络设备发送RRC重配完成消息。
需要说明的是，本公开实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的组切换方法，包括：进行切换判决；确定执行组切换后， 向目标网络设备发送切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的组切换方法，包括：接收源网络设备发送的切换请求消息，切换请求消息中携带有用于表征终端组的第一指示信息。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的组切换方法，包括：基于接收到的测量上报配置，向源网络设备发送测量上报消息。
所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(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)通用分组无线业务(general packet radio service，GPRS)系统、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)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
本公开实施例涉及的终端，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端的名称可能也不相同，例如在5G系统中，终端可以称为用户终端或用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、 无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
网络设备与终端之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程 或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (67)

  1. 一种组切换方法，其特征在于，应用于源网络设备，包括：
    进行切换判决；
    确定执行组切换后，向目标网络设备发送切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
  2. 根据权利要求1所述的组切换方法，其特征在于，所述第一指示信息包括如下信息中的一个或者多个：
    组标识；
    组内中继终端的标识信息；
    组内远端终端的标识信息；
    组内成员终端对应的用户终端UE上下文信息。
  3. 根据权利要求1或2所述的组切换方法，其特征在于，所述方法还包括：
    接收终端的测量上报消息，并基于所述测量上报消息进行所述切换判决。
  4. 根据权利要求3所述的组切换方法，其特征在于，所述方法还包括：
    仅从组内中继终端接收测量上报结果；或，
    从全部或者部分组内成员终端接收测量上报结果。
  5. 根据权利要求4所述的组切换方法，其特征在于，若仅从组内中继终端接收测量上报结果，所述方法还包括：
    仅向组内中继终端发送测量配置；或，
    向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
  6. 根据权利要求4所述的组切换方法，其特征在于，若全部或者部分组内成员终端进行测量上报，所述方法还包括：
    向组内需要进行测量上报的每个组内成员终端发送测量配置。
  7. 根据权利要求4所述的组切换方法，其特征在于，所述方法还包括：
    接收组内中继终端或者组内成员终端发送的测量上报消息，所述测量上报消息中包括有所述组内中继终端或者组内成员终端自身的测量结果，以及 其他组内成员终端的测量结果。
  8. 根据权利要求3所述的组切换方法，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  9. 根据权利要求1所述的组切换方法，其特征在于，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，
    所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
  10. 根据权利要求1所述的组切换方法，其特征在于，所述方法还包括：
    接收所述目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，
    接收所述目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
  11. 一种组切换方法，其特征在于，应用于目标网络设备，包括：
    接收源网络设备发送的切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
  12. 根据权利要求11所述的组切换方法，其特征在于，所述接收源网络设备发送的切换请求消息后，所述方法还包括以下任一项：
    进行组接纳判决确定能够接纳所有组内成员终端，则向所述源网络设备发送切换请求确认消息；
    进行组接纳判决确定仅能够接纳部分组内成员终端，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第四指示信息，所述第四指示信息用于指示被接纳的组内成员终端的标识信息；
    进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第五指示信息，所述第五指示信息用于指示被接纳的组内成员终端的标识信息以及所述被接纳的组内成员终端被接纳的承载信息。
  13. 根据权利要求11所述的组切换方法，其特征在于，所述切换请求消 息中还包括有组内成员终端针对目标小区的测量结果；
    所述方法还包括：
    基于所述测量结果变更组内中继终端。
  14. 根据权利要求12所述的组切换方法，其特征在于，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
  15. 根据权利要求12或14所述的组切换方法，其特征在于，所述切换请求确认消息中还包括以下一项或多项：
    组内成员终端与目标网络设备之间端到端承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载配置信息；
    组内中继终端与目标网络设备之间Uu接口承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；
    组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
  16. 一种组切换方法，其特征在于，应用于终端，包括：
    基于接收到的测量配置，向源网络设备发送测量上报消息。
  17. 根据权利要求16所述的组切换方法，其特征在于，若所述测量配置仅允许组内中继终端进行测量上报，则所述向源网络设备发送测量上报消息，包括：
    在所述终端为所述组内中继终端的情况下，向源网络设备发送测量上报消息。
  18. 根据权利要求16所述的组切换方法，其特征在于：
    在所述终端为组内中继终端的情况下，所述测量上报消息中包括所述组 内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，
    在所述终端为组内远端终端的情况下，所述测量上报消息中包括所述组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
  19. 根据权利要求18所述的组切换方法，其特征在于，所述其他组内成员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，所述触发事件包括以下一项或多项：
    基于其他组内成员终端的请求；
    其他组内成员终端测量到邻小区信号质量高于门限。
  20. 根据权利要求16所述的组切换方法，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  21. 根据权利要求16所述的组切换方法，其特征在于，所述方法还包括：
    接收所述源网络设备发送的无线资源控制RRC重配消息；或，
    在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；
    在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
  22. 根据权利要求16所述的组切换方法，其特征在于，所述方法还包括：
    在所述终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向所述目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，所述第七指示信息用于指示其他组内成员终端通过所述组内中继终端向所述目标网络设备发送RRC重配完成消息。
  23. 一种源网络设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    进行切换判决；
    确定执行组切换后，向目标网络设备发送切换请求消息，所述切换请求 消息中携带有用于表征终端组的第一指示信息。
  24. 根据权利要求23所述的源网络设备，其特征在于，所述第一指示信息包括如下信息中的一个或者多个：
    组标识；
    组内中继终端的标识信息；
    组内远端终端的标识信息；
    组内成员终端对应的用户终端UE上下文信息。
  25. 根据权利要求23或24所述的源网络设备，其特征在于，所述操作还包括：
    接收终端的测量上报消息，并基于所述测量上报消息进行所述切换判决。
  26. 根据权利要求25所述的源网络设备，其特征在于，所述操作还包括：
    仅从组内中继终端接收测量上报结果；或，
    从全部或者部分组内成员终端接收测量上报结果。
  27. 根据权利要求26所述的源网络设备，其特征在于，若仅从组内中继终端接收测量上报结果，所述操作还包括：
    仅向组内中继终端发送测量配置；或，
    向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
  28. 根据权利要求26所述的源网络设备，其特征在于，若全部或者部分组内成员终端进行测量上报，所述操作还包括：
    向组内需要进行测量上报的每个组内成员终端发送测量配置。
  29. 根据权利要求26所述的源网络设备，其特征在于，所述操作还包括：
    接收组内中继终端或者组内成员终端发送的测量上报消息，所述测量上报消息中包括有所述组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
  30. 根据权利要求25所述的源网络设备，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  31. 根据权利要求23所述的源网络设备，其特征在于，所述切换请求消息中还包括有变更组内中继终端的第三指示信息；或，
    所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
  32. 根据权利要求23所述的源网络设备，其特征在于，所述操作还包括：
    接收所述目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，
    接收所述目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
  33. 一种目标网络设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收源网络设备发送的切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
  34. 根据权利要求33所述的目标网络设备，其特征在于，所述接收源网络设备发送的切换请求消息后，所述操作还包括以下任一项：
    进行组接纳判决确定能够接纳所有组内成员终端，则向所述源网络设备发送切换请求确认消息；
    进行组接纳判决确定仅能够接纳部分组内成员终端，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第四指示信息，所述第四指示信息用于指示被接纳的组内成员终端的标识信息；
    进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第五指示信息，所述第五指示信息用于指示被接纳的组内成员终端的标识信息以及所述被接纳的组内成员终端被接纳的承载信息。
  35. 根据权利要求33所述的目标网络设备，其特征在于，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果；
    所述操作还包括：
    基于所述测量结果变更组内中继终端。
  36. 根据权利要求34所述的目标网络设备，其特征在于，所述切换请求确认消息中还包括有指示新的组内中继终端的第六指示信息。
  37. 根据权利要求34或36所述的目标网络设备，其特征在于，所述切换请求确认消息中还包括以下一项或多项：
    组内成员终端与目标网络设备之间端到端承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载配置信息；
    组内中继终端与目标网络设备之间Uu接口承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；
    组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
  38. 一种终端，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    基于接收到的测量配置，向源网络设备发送测量上报消息。
  39. 根据权利要求38所述的终端，其特征在于，若所述测量配置仅允许组内中继终端进行测量上报，则所述向源网络设备发送测量上报消息，包括：
    在所述终端为所述组内中继终端的情况下，向源网络设备发送测量上报消息。
  40. 根据权利要求38所述的终端，其特征在于：
    在所述终端为组内中继终端的情况下，所述测量上报消息中包括所述组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，
    在所述终端为组内远端终端的情况下，所述测量上报消息中包括所述组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
  41. 根据权利要求40所述的终端，其特征在于，所述其他组内成员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，所述触发事件包括以下一项或多项：
    基于其他组内成员终端的请求；
    其他组内成员终端测量到邻小区信号质量高于门限。
  42. 根据权利要求38所述的终端，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  43. 根据权利要求38所述的终端，其特征在于，所述操作还包括：
    接收所述源网络设备发送的无线资源控制RRC重配消息；或，
    在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；
    在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
  44. 根据权利要求38所述的终端，其特征在于，所述操作还包括：
    在所述终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向所述目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，所述第七指示信息用于指示其他组内成员终端通过所述组内中继终端向所述目标网络设备发送RRC重配完成消息。
  45. 一种组切换装置，其特征在于，应用于源网络设备，包括：
    判决单元，用于进行切换判决；
    第一发送单元，用于确定执行组切换后，向目标网络设备发送切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
  46. 根据权利要求45所述的组切换装置，其特征在于，所述第一指示信息包括如下信息中的一个或者多个：
    组标识；
    组内中继终端的标识信息；
    组内远端终端的标识信息；
    组内成员终端对应的用户终端UE上下文信息。
  47. 根据权利要求45或46所述的组切换装置，其特征在于，所述判决单元还用于：
    接收终端的测量上报消息，并基于所述测量上报消息进行所述切换判决。
  48. 根据权利要求47所述的组切换装置，其特征在于，所述判决单元还用于：
    仅从组内中继终端接收测量上报结果；或，
    从全部或者部分组内成员终端接收测量上报结果。
  49. 根据权利要求48所述的组切换装置，其特征在于，若仅从组内中继终端接收测量上报结果，所述第一发送单元还用于：
    仅向组内中继终端发送测量配置；或，
    向全部或者部分组内成员终端发送测量配置，但是限制仅允许组内中继终端进行测量上报。
  50. 根据权利要求48所述的组切换装置，其特征在于，若全部或者部分组内成员终端进行测量上报，所述第一发送单元还用于：
    向组内需要进行测量上报的每个组内成员终端发送测量配置。
  51. 根据权利要求48所述的组切换装置，其特征在于，所述判决单元还用于：
    接收组内中继终端或者组内成员终端发送的测量上报消息，所述测量上报消息中包括有所述组内中继终端或者组内成员终端自身的测量结果，以及其他组内成员终端的测量结果。
  52. 根据权利要求47所述的组切换装置，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  53. 根据权利要求45所述的组切换装置，其特征在于，所述切换请求消 息中还包括有变更组内中继终端的第三指示信息；或，
    所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果。
  54. 根据权利要求45所述的组切换装置，其特征在于，所述第一发送单元还用于：
    接收所述目标网络设备发送的切换请求确认消息后，向组内中继终端和其他组内成员终端分别发送无线资源控制RRC重配消息；或，
    接收所述目标网络设备发送的切换请求确认消息后，在组内中继终端发生变更的情况下，通过源组内中继终端通知其他组内成员终端新的组内中继终端。
  55. 一种组切换装置，其特征在于，应用于目标网络设备，包括：
    第二接收单元，用于接收源网络设备发送的切换请求消息，所述切换请求消息中携带有用于表征终端组的第一指示信息。
  56. 根据权利要求55所述的组切换装置，其特征在于，所述装置还包括第二发送单元，用于以下任一项：
    进行组接纳判决确定能够接纳所有组内成员终端，则向所述源网络设备发送切换请求确认消息；
    进行组接纳判决确定仅能够接纳部分组内成员终端，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第四指示信息，所述第四指示信息用于指示被接纳的组内成员终端的标识信息；
    进行组接纳判决确定仅能够接纳部分组内成员终端的部分承载，则向所述源网络设备发送切换请求确认消息，所述切换请求确认消息中包括有第五指示信息，所述第五指示信息用于指示被接纳的组内成员终端的标识信息以及所述被接纳的组内成员终端被接纳的承载信息。
  57. 根据权利要求55所述的组切换装置，其特征在于，所述切换请求消息中还包括有组内成员终端针对目标小区的测量结果；
    所述装置还包括：
    变更单元，用于基于所述测量结果变更组内中继终端。
  58. 根据权利要求56所述的组切换装置，其特征在于，所述切换请求确 认消息中还包括有指示新的组内中继终端的第六指示信息。
  59. 根据权利要求56或58所述的组切换装置，其特征在于，所述切换请求确认消息中还包括以下一项或多项：
    组内成员终端与目标网络设备之间端到端承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载配置信息；
    组内中继终端与目标网络设备之间Uu接口承载配置信息；
    组内成员终端与组内中继终端之间直接通信接口承载和组内中继终端与目标网络设备之间Uu接口承载之间的映射关系；
    组内成员终端和组内中继终端之间直接通信接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内中继终端与目标网络设备之间Uu接口承载和组内成员终端与目标网络设备之间端到端承载之间的映射关系；
    组内成员终端与组内中继终端之间直接通信接口承载、组内中继终端与目标网络设备之间Uu接口承载以及组内成员终端与目标网络设备之间端到端承载三者之间的映射关系。
  60. 一种组切换装置，其特征在于，应用于终端，包括：
    第三发送单元，用于基于接收到的测量上报配置，向源网络设备发送测量上报消息。
  61. 根据权利要求60所述的组切换装置，其特征在于，若所述测量配置仅允许组内中继终端进行测量上报，则所述第三发送单元用于：
    在所述终端为所述组内中继终端的情况下，向源网络设备发送测量上报消息。
  62. 根据权利要求60所述的组切换装置，其特征在于：
    在所述终端为组内中继终端的情况下，所述测量上报消息中包括所述组内中继终端自身的测量结果，以及其他组内成员终端的测量结果；或，
    在所述终端为组内远端终端的情况下，所述测量上报消息中包括所述组内远端终端自身的测量结果，以及其他组内成员终端的测量结果。
  63. 根据权利要求62所述的组切换装置，其特征在于，所述其他组内成 员终端的测量结果通过直接通信接口周期性交互或者事件触发交互获取，所述触发事件包括以下一项或多项：
    基于其他组内成员终端的请求；
    其他组内成员终端测量到邻小区信号质量高于门限。
  64. 根据权利要求60所述的组切换装置，其特征在于，所述测量上报消息中包括有第二指示信息，所述第二指示信息用于指示期望执行的切换类型，所述切换类型包括组切换和单个终端的切换。
  65. 根据权利要求60所述的组切换装置，其特征在于，所述装置还包括第三接收单元，用于：
    接收所述源网络设备发送的无线资源控制RRC重配消息；或，
    在组内中继终端发生变更的情况下，源组内中继终端通知其他组内成员终端新的组内中继终端；
    在组内中继终端发生变更的情况下，接收源组内中继终端通知的新的组内中继终端，释放和源组内中继终端的直接通信连接，并和新的组内中继终端建立直接通信连接。
  66. 根据权利要求60所述的组切换装置，其特征在于，所述第三发送单元，还用于：
    在所述终端为组内中继终端的情况下，和目标网络设备完成随机接入或者向所述目标网络设备发送RRC重配完成消息后，向其他组内成员终端发送第七指示信息，所述第七指示信息用于指示其他组内成员终端通过所述组内中继终端向所述目标网络设备发送RRC重配完成消息。
  67. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至10任一项所述的方法，或执行权利要求11至15任一项所述的方法，或执行权利要求16至22任一项所述的方法。
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