WO2021027896A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

Info

Publication number
WO2021027896A1
WO2021027896A1 PCT/CN2020/109006 CN2020109006W WO2021027896A1 WO 2021027896 A1 WO2021027896 A1 WO 2021027896A1 CN 2020109006 W CN2020109006 W CN 2020109006W WO 2021027896 A1 WO2021027896 A1 WO 2021027896A1
Authority
WO
WIPO (PCT)
Prior art keywords
access network
network device
cell
trigger condition
secondary access
Prior art date
Application number
PCT/CN2020/109006
Other languages
English (en)
French (fr)
Inventor
耿婷婷
胡星星
张宏平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20852953.7A priority Critical patent/EP4017099A4/en
Publication of WO2021027896A1 publication Critical patent/WO2021027896A1/zh
Priority to US17/670,761 priority patent/US20220167235A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • 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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00698—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using different RATs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • This application relates to the field of communication, and more specifically, to a communication method and communication device.
  • the mobility management of a connected terminal device is controlled by the network device, that is, the network device instructs the terminal device to switch to which cell and how to switch by sending a handover message.
  • the source network device sends a handover message to the terminal device to control the terminal device to switch from the source cell to the target cell.
  • the terminal device accesses the target cell according to the content contained in the handover message. Therefore, the successful transmission of the handover message is a necessary condition to ensure successful handover under the traditional handover mechanism.
  • LTE long term evolution
  • NR new radio
  • a terminal device can communicate with two network devices at the same time, how to perform cell handover to improve the success rate of cell handover needs to be solved urgently.
  • the present application provides a communication method, communication device, communication system, and readable storage medium, in order to improve the success rate of cell handover.
  • a communication method in a first aspect, can be applied to a communication system including a primary access network device and a first secondary access network device.
  • the method includes: acquiring at least one candidate secondary access network device Handover trigger condition information of one or more cells; sending a first message to the terminal device, the first message including the handover trigger condition information.
  • the primary access network device receives handover trigger condition information of one or more cells under at least one candidate secondary access network device from the first secondary access network device, and sends information including the at least one candidate secondary access network to the terminal device
  • the first message of the handover trigger condition information of one or more cells under the device enables the terminal device to actively perform cell handover under the auxiliary access network device according to the handover trigger condition information, thereby improving the success rate of cell handover. And the speed of cell change under the auxiliary access network device is improved, and the flexibility of cell change under the auxiliary access network device is improved.
  • the acquiring the handover trigger condition information of one or more cells under at least one candidate secondary access network device includes: receiving the handover trigger condition information from the first secondary access network device.
  • the first secondary access network device can detect and obtain the handover trigger condition information of one or more cells under at least one candidate secondary access network device, and send the at least one candidate secondary access network device to the primary access network device.
  • the handover trigger condition information of one or more cells that is, the first secondary access network device can flexibly adjust the handover trigger condition information, which improves the flexibility of cell change under the secondary access network device.
  • the obtaining handover trigger condition information of one or more cells under at least one candidate secondary access network device includes: generating the handover trigger condition information.
  • the primary access network device may set the handover trigger condition information of one or more cells under at least one candidate secondary access network device.
  • the primary access network device is the master node (MN), and the first secondary access network device
  • the networked device is the secondary node (SN)
  • the MN sets the handover trigger condition information according to the candidate SN list obtained from the SN and the measurement result information (the measurement result information is also optional), that is, the MN determines the handover trigger condition Information to improve the flexibility of SN changes.
  • the method further includes: receiving from the first secondary access network device measurement quality information of one or more cells under the at least one candidate secondary access network device;
  • the first candidate secondary access network device in the access network device receives the configuration information of one or more cells under the first candidate access network device; wherein, the foregoing sending the first message to the terminal device includes: The first message is sent, and the first message further includes at least one of cell identities, configuration information, and measurement quality information of one or more cells under the at least one candidate secondary access network device.
  • the configuration information of the first cell in the one or more cells may be the time-frequency resources allocated to the terminal device by the candidate secondary access network device to which the first cell belongs, and the radio resource control configuration (RRC configuration) of the first cell , At least one of the measurement quality of the first cell or the address of the candidate secondary access network device to which the first cell belongs, thereby improving the communication quality after the terminal device is switched to the access network device to which the first cell belongs .
  • RRC configuration radio resource control configuration
  • the method before receiving the configuration information of the first cell, the method further includes: sending a first request to the first candidate secondary access network device, where the first request is used to request the first candidate Configuration information configured by the auxiliary access network device for the terminal device.
  • the first candidate secondary access network device after receiving the first request, sends the configuration information to the primary access network device, avoiding the waste of signaling caused by the configuration information sent when there is no demand .
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, and the handover trigger of the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or triggers the terminal device to switch to the first cell.
  • Restricting the selection of handover cells in the above manner can help to further improve the communication quality after handover or increase the flexibility of cell handover.
  • the method further includes: receiving a first response message from the terminal device, where the first response message is used to instruct the second auxiliary access network device of the at least one candidate auxiliary access network device to download The cell identifier of the second cell of the second cell, where the second cell meets the handover trigger condition indicated by the handover trigger condition information of the second cell.
  • the MN can learn from the terminal device the cell identity of the cell to which the terminal device is about to be handed over, which prevents the MN and the first SN from simultaneously performing dual-connection communication with the terminal, which helps to improve communication efficiency.
  • the method further includes: sending a second message to the first secondary access network device, where the second message is used to indicate the addition of the candidate secondary access network device by the primary access network device .
  • the addition situation may be that the primary access network device successfully adds the candidate secondary access network device, or the addition of the secondary access network device fails, so that the first secondary access network device can learn the addition of the candidate secondary access network device according to the second message
  • the situation further helps the auxiliary access network device to select a more suitable candidate auxiliary access network device for the primary access network, and further improves the handover success rate.
  • the second message includes confirmation information of the candidate secondary access network device successfully added by the primary access network device, and/or the candidate secondary access network device failed to be added by the primary access network device Information.
  • the addition status can be learned more concisely through acknowledgement information (ACK) or negative acknowledgement (NACK), saving signaling transmission overhead and saving identification overhead of the first auxiliary access network device.
  • ACK acknowledgement information
  • NACK negative acknowledgement
  • a communication method which can be applied to a communication system including a primary access network device and a first secondary access network device.
  • the method includes: determining at least one candidate secondary access network device Handover trigger condition information of one or more cells; send the handover trigger condition information to the primary access network device.
  • the first secondary access network device may determine the handover trigger condition information of one or more cells under each candidate secondary access network device in at least one candidate secondary access network device, and send it to the primary access network device, and then The primary access network device sends the first message including the handover trigger condition information of one or more cells under the at least one candidate secondary access network device to the terminal device, so that the terminal device can actively perform the auxiliary connection according to the handover trigger condition information
  • the cell handover under the networked device improves the success rate of cell handover, and improves the speed of SN change, and improves the flexibility of SN change.
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, and the handover trigger of the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or triggers the terminal device to switch to the first cell.
  • Restricting the selection of handover cells in the above manner can help to further improve the communication quality after handover or increase the flexibility of cell handover.
  • the method further includes: sending measurement quality information of one or more cells under the at least one candidate secondary access network device to the primary access network device.
  • the first secondary access network device sends the measurement quality information of one or more cells under the at least one candidate secondary access network device to the primary access network device, so that the primary access network device uses the at least one candidate secondary access network device
  • the measurement quality information of one or more cells under the device is carried in the first message and sent to the terminal device, so that the terminal device selects the second cell according to the measurement quality information, thereby further improving the communication quality of the cell after the handover.
  • the method further includes: receiving a second message from the primary access network device, where the second message is used to instruct the primary access network device to add the at least one candidate secondary access network device happening.
  • the addition situation may be that the primary access network device successfully adds the candidate secondary access network device, or the addition of the secondary access network device fails.
  • the first auxiliary access network device can learn the addition of candidate auxiliary access network devices according to the second message, which in turn helps the auxiliary access network device to select more suitable candidate auxiliary access network devices for the main access network , Further improve the handover success rate.
  • the second message includes confirmation information of the candidate secondary access network device successfully added by the primary access network device among the at least one candidate secondary access network device, and/or the at least one candidate secondary access network device Information of candidate secondary access network equipment that failed to be added by the primary access network equipment in the secondary access network equipment.
  • a communication method which can be applied to a communication system including a primary access network device and a first secondary access network device, and the method includes: receiving a first message from the primary access network device , The first message includes handover trigger condition information of one or more cells under at least one candidate secondary access network device; a first response message is sent to the primary access network device, and the first response message is used to indicate the at least A second cell under a second auxiliary access network device in a candidate auxiliary access network device, where the second cell meets the handover trigger condition indicated by the handover trigger condition information of the second cell.
  • the terminal device receives the first message including the handover trigger condition information of one or more cells under the at least one candidate secondary access network device, and actively performs cell handover under the secondary access network device according to the handover trigger condition information, thereby
  • the success rate of cell handover is improved, as well as the speed of SN change, and the flexibility of SN change.
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, and the handover trigger of the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or triggers the terminal device to switch to the first cell.
  • the terminal device sends the first message that includes the handover trigger condition information of one or more cells under the at least one candidate secondary access network device, so that the terminal device can actively perform the switching of the cell under the secondary access network device according to the handover trigger condition information.
  • Handover thereby improving the success rate of cell handover, increasing the speed of SN change, and improving the flexibility of SN change.
  • the first response message includes the cell identity of the second cell.
  • a communication method is provided.
  • the method can be applied to a communication system including a first primary access network device MN and a first secondary access network device SN.
  • the method includes: receiving the first MN from the first MN.
  • a message the first message is used to indicate the handover trigger condition of one or more cells under at least one candidate MN; a first response message is sent to the second MN of the at least one candidate MN, and the first response message is used for Indicate the second cell under the second MN, where the second cell under the second MN meets the handover trigger condition of the second cell under the second MN.
  • the terminal device receives the first message from the first MN, and according to the handover trigger condition, determines the second MN that meets the handover trigger condition. Specifically, the second cell under the second MN satisfies the handover trigger condition of the second cell.
  • the terminal device of the embodiment of the present application can actively perform cell handover under the secondary access network device according to the handover trigger condition information, thereby improving the success rate of cell handover.
  • the first message is also used to indicate one or more cells under at least one candidate SN corresponding to each of the at least one candidate MN, and one or more cells under the at least one candidate SN. Trigger conditions for handovers of multiple cells, the first response message is also used to indicate the second cell under the second SN in the at least one candidate SN, and the second cell under the second SN meets the second cell under the second SN The handover trigger condition of the second cell.
  • the first message can also be used to indicate at least one candidate SN that can perform DC with each candidate MN, so that after the terminal device performs the MN handover, It is also possible to select a second SN from the at least one candidate SN corresponding to the selected MN according to the handover trigger condition of the at least one candidate SN corresponding to the selected MN, thereby avoiding the selection of an SN that cannot perform DC with the second MN, which improves Communication efficiency.
  • the method before sending the first response message to the second MN, the method further includes: according to the handover trigger condition and the handover trigger condition of one or more cells under the at least one candidate SN corresponding to the second MN The measurement quality of one or more cells under the at least one candidate SN is determined to determine the second cell under the second SN.
  • the terminal device can select a second cell that meets the handover trigger condition according to the measurement quality of one or more cells under the at least one candidate SN, which can help the terminal device select a second cell with higher communication quality, thereby helping To improve communication quality.
  • the method before sending the first response message to the second MN, the method further includes: according to a handover trigger condition of one or more cells under the at least one candidate MN and the at least one candidate MN Determine the measurement quality of one or more cells under the second MN from the at least one candidate MN.
  • the terminal device may detect the measurement quality of the cell under each MN in the at least one candidate MN. If the measurement quality of the second cell under the second MN is greater than the quality threshold of the second cell, the second cell is taken as the cell to be handed over. Or the terminal device detects that the difference between the measurement quality of the current serving cell and the measurement quality of the second cell under the second MN is greater than or equal to the difference of the measurement quality of the second cell, and the second cell is used as the cell to be handed over , Which helps to improve the communication quality after handover.
  • the first message is also used to indicate the effective time of the handover trigger condition.
  • the handover trigger condition of each cell can have an effective time, and the corresponding handover trigger condition is released after the effective time, or the handover trigger conditions of all cells have a valid time, that is, all the handover trigger conditions are released after the effective time. Improve the flexibility of cell handover.
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the quality deviation threshold that triggers the terminal device to switch to the first cell, and the quality deviation includes the The difference between the measurement quality between the terminal device and the serving cell and the measurement quality between the terminal device and the first cell, where the first cell is a cell under the at least one candidate MN.
  • the selection of the handover cell through these two methods can help to further improve the communication quality after the cell handover under the primary access network device.
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the quality deviation threshold that triggers the terminal device to switch to the first cell, and the quality deviation includes the The difference between the measurement quality between the terminal device and the serving cell and the measurement quality between the terminal device and the first cell, where the first cell is a cell under the at least one candidate SN.
  • the selection of the handover cell through these two methods can help to further improve the communication quality after the cell handover under the secondary access network device.
  • a communication method which can be applied to a communication system including a first primary access network device MN and a first secondary access network device SN.
  • the method includes: acquiring at least one candidate MN Handover trigger conditions of one or more cells; sending a first message to the terminal device, where the first message is used to indicate the handover trigger conditions of one or more cells under the at least one candidate MN.
  • the first MN may acquire the handover trigger condition of one or more cells under at least one candidate MN, and send a first message for indicating the handover trigger condition of one or more cells under the at least one candidate MN to the terminal device,
  • the terminal device can actively perform cell handover under the auxiliary access network device according to the handover trigger condition information, thereby improving the success rate of cell handover.
  • the first message further includes the identification of at least one candidate SN corresponding to each of the at least one candidate MN, and the handover trigger condition of the at least one candidate SN, and the first response message also It includes the cell identity of the target cell in the second SN in the at least one candidate SN, and the measurement quality of the target cell in the second SN meets the handover trigger condition of the target cell in the second SN.
  • the first message can also be used to indicate at least one candidate SN that can perform DC with each candidate MN. This enables the terminal device to perform MN handover according to the selection According to the handover trigger condition of at least one candidate SN corresponding to the selected MN, a second SN is selected from the at least one candidate SN corresponding to the selected MN, thereby avoiding selecting an SN that cannot perform DC with the second MN, and improving communication efficiency.
  • the method further includes: receiving first information from a second MN among the at least one candidate MN, the first information being used to indicate that the second SN and the first SN are the same SN; Send second information to the first SN, where the second information is used to instruct the first SN to save the terminal device UE context information of the terminal device.
  • the second MN may send first information to the first MN, and the first information indicates that the second SN and the first SN are the same SN.
  • the first MN sends the second information to the first SN.
  • the first SN may not release the UE context stored in the first SN, which avoids the need to release the UE context. Re-establishment, thereby saving resource overhead.
  • the first message is also used to indicate the effective time of the handover trigger condition.
  • the handover trigger condition of each cell can have an effective time, and the corresponding handover trigger condition is released after the effective time, or the handover trigger conditions of all cells have a valid time, that is, all the handover trigger conditions are released after the effective time. Improve the flexibility of cell handover.
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the measurement quality deviation threshold that triggers the terminal device to switch to the first cell, and the first cell is The cell under the at least one candidate MN.
  • the selection of the handover cell through these two methods can help to further improve the communication quality after the cell handover under the primary access network device.
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the measurement quality deviation threshold that triggers the terminal device to switch to the first cell, and the first cell is The cell under the at least one candidate SN.
  • the selection of the handover cell through these two methods can help to further improve the communication quality after the cell handover under the secondary access network device.
  • a communication method which can be applied to a communication system including a first primary access network device MN and a first secondary access network device SN.
  • the method includes: receiving a first response message, the The first response message is used to indicate the second cell under the second MN and used to indicate the second cell under the second SN.
  • the second cell under the second MN meets the handover of the second cell under the second MN Trigger condition, the second cell under the second SN meets the handover trigger condition of the second cell under the second SN; send first information, the first information is used to indicate that the second SN is the same as the first SN An SN.
  • the first MN may acquire the handover trigger condition of one or more cells under at least one candidate MN, and send a first message for indicating the handover trigger condition of one or more cells under the at least one candidate MN to the terminal device, This enables the terminal device to actively perform the handover of the cell under the secondary access network device according to the handover trigger condition information, and sends a first response message to the second primary access network device, so that the second MN learns that it is selected, and then communicates with the terminal The equipment establishes random access, thereby improving the handover efficiency.
  • the sending the first information includes: sending the first information to the first MN.
  • the second MN can directly send to the first SN indication information for indicating that the second SN and the first SN are the same SN, thereby saving signaling overhead .
  • the method further includes: sending the second information to the first SN, where the second information is further used to instruct the first SN to save the terminal device UE context information of the terminal device.
  • the first SN may not release the UE context stored in the first SN, which avoids re-establishment after release, thereby saving resource overhead.
  • the handover trigger condition of the second cell includes the measurement quality threshold that triggers the terminal device to switch to the second cell or the measurement quality deviation threshold that triggers the terminal device to switch to the second cell. It is a cell under the second SN or a cell under the second MN.
  • the selection of the handover cell through these two methods can help to further improve the communication quality after the cell handover under the primary access network device or the secondary access network device.
  • a device in a seventh aspect, may be a main access network device or a chip for the main access network device, such as a chip that can be set in the main access network device. It is understandable that the device is an access network device, but when serving a certain terminal device, it serves as the main access network device, and when serving another terminal device, the access network device can also be used as a secondary access network device. .
  • the device has the function of realizing the above-mentioned first aspect, fifth aspect or sixth aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter.
  • the receiving module and the transmitting module may include radio frequency circuits or antennas.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or from other instructions, so that the device executes the above-mentioned first, fifth, or sixth aspects, and various possibilities Implementation method of communication.
  • the device can be the main access network device.
  • the chip when the device is a chip, the chip includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the receiving module and the sending module may be inputs on the chip, for example. /Output interface, pin or circuit, etc.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions so that the chip in the terminal device executes the foregoing, the fifth aspect or the sixth aspect, and any possible implementation of the communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a device may be an auxiliary access network device or a chip for the auxiliary access network device, such as a chip that can be set in the auxiliary access network device. It is understandable that the device is an access network device, but when serving a certain terminal device, it serves as a secondary access network device, and when serving another terminal device, the access network device can also be used as a primary access network device. .
  • the device has the function of realizing the above-mentioned second aspect and various possible implementation modes. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the receiving module and the sending module may be at least one of a transceiver, a receiver, and a transmitter, for example, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other instructions, so that the device executes the second aspect or any one of the methods described above.
  • the chip when the device is a chip, the chip includes a receiving module and a sending module.
  • the chip further includes a processing module.
  • the receiving module and the sending module may be input/output interfaces, pins or circuits on the chip, for example.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions so that the chip in the auxiliary access network device executes the second aspect described above and any possible implemented communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a device in a ninth aspect, may be a terminal device or a chip for the terminal device, such as a chip that can be set in the terminal device.
  • the device has the function of realizing the aforementioned third aspect or fourth aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a receiving module and a sending module.
  • the device further includes a processing module.
  • the receiving module and the sending module may be at least one of a transceiver, a receiver, and a transmitter, for example, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions from other sources, so that the device executes the third aspect or the fourth aspect, or any one of the methods.
  • the chip when the device is a chip, the chip includes: a receiving module and a sending module, and optionally, the chip further includes a processing module.
  • the receiving module and the sending module may be input/output interfaces, pins or circuits on the chip, for example.
  • the processing module may be a processor, for example.
  • the processing module can execute instructions so that the chip in the terminal device executes the third aspect or the fourth aspect, and any possible implementation communication method.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct to execute the above-mentioned first, fifth, or sixth aspects, and any possible implementations thereof Method of instruction.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect and any possible implementations thereof.
  • a computer storage medium is provided, and program code is stored in the computer storage medium.
  • the program code is used to instruct the execution of the method in the third aspect or the fourth aspect, and any possible implementation manners thereof. instruction.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the above-mentioned first aspect, fifth aspect, or sixth aspect, or any possible implementation of the method.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the second aspect described above, or any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the third aspect or the fourth aspect, or any possible implementation manner thereof.
  • a communication system in a sixteenth aspect, includes a device capable of implementing the methods and various possible designs of the above-mentioned first aspect, and the foregoing methods and various possible designs for implementing the above-mentioned second aspect.
  • a communication system in a seventeenth aspect, includes a device capable of implementing the methods and various possible designs of the foregoing fourth aspect, and the foregoing methods and various possible designs that implement the foregoing fifth aspect.
  • the primary access network device receives the handover trigger condition information of one or more cells under at least one candidate secondary access network device from the first secondary access network device, and sends to the terminal device information including the at least one The first message of the handover trigger condition information of one or more cells under the candidate secondary access network device, so that the terminal device can actively perform cell handover under the secondary access network device according to the handover trigger condition information, thereby improving cell handover The success rate of SN, and the speed of SN change, and the flexibility of SN change.
  • FIG. 1 is a schematic diagram of a communication architecture of an embodiment of the present application
  • FIG. 2 is a schematic diagram of the communication architecture of another embodiment of the present application.
  • FIG. 3 is a schematic diagram of a communication architecture of another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for cell handover in a secondary base station in a traditional solution
  • FIG. 5 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • Fig. 6 is a schematic flowchart of a cell handover method under a primary access network device in a traditional solution
  • FIG. 7 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method according to a specific embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a communication method according to a specific embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a communication device according to another embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a communication device according to another embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G Future 5th Generation
  • New Wireless new radio
  • the terminal equipment in the embodiments of this application may refer to user equipment, access terminal equipment, user unit, user station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, user terminal equipment, terminal equipment, wireless communication equipment , User agent or user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (PLMN) Terminal equipment, etc., this embodiment of the present application does not limit this.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the access network equipment in the embodiments of this application may be equipment used to communicate with terminal equipment.
  • the access network equipment may be an evolved NodeB (eNB or eNodeB) in an LTE system, or a cloud wireless access
  • the wireless controller in the cloud radio access network (CRAN) scenario, or the access network device can be a relay station, access point, in-vehicle device, wearable device, and access network device in the future 5G network or future evolution
  • the primary access network device or the secondary access network device in the embodiment of the present application may be any of the foregoing access network devices.
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements part of the functions of gNB
  • DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC medium access control
  • PHY physical
  • the access network device may be a device including one or more of the CU node, the DU node, and the AAU node.
  • the CU can be divided into access network equipment in the access network (radio access network, RAN), or the CU can be divided into access network equipment in the core network (core network, CN). This application does not Make a limit.
  • the terminal device or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal device or an access network device, or a functional module in the terminal device or the access network device that can call and execute the program.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • magnetic storage devices for example, hard disks, floppy disks, or tapes, etc.
  • optical disks for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs) Etc.
  • smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • CA Carrier aggregation
  • Terminal equipment can simultaneously use multiple cells for uplink and downlink communications, thereby supporting high-speed data transmission.
  • one of the multiple cells is a primary cell (primary cell, PCell), and the other cells are secondary cells (secondary cell, SCell).
  • CA allows physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH) to be in the same or different carrier component (CC), that is, cross-carrier scheduling is allowed .
  • CC carrier component
  • BWP bandwidth part
  • BWP bandwidth part
  • CC/BWP bandwidth part
  • CC and/or BWP are usually equivalently replaced because they all describe a section of frequency domain resources.
  • CC can also be equivalently replaced with a cell.
  • BWP represents a continuous frequency domain resource.
  • BWP can be understood as a continuous frequency band, the frequency band includes at least one continuous subband, and each bandwidth part can correspond to a set of system parameters (numerology). Different bandwidth parts can correspond to different system parameters.
  • PCell Primary cell
  • PCell is a cell where CA terminal equipment resides, and CA terminal equipment corresponds to a physical uplink control channel (PUCCH) channel.
  • PUCCH physical uplink control channel
  • Secondary cell secondary cell, SCell
  • SCell refers to a cell configured to CA terminal equipment through radio resource control (Radio Resource Control, RRC) connection signaling. It works on SCC (secondary carrier) and can provide CA terminal equipment with more radio resources.
  • RRC Radio Resource Control
  • the SCell can have only downlink or both uplink and downlink.
  • Secondary primary cell primary secondary Cell, PSCell
  • the PSCell is a special secondary cell on the secondary base station that the primary base station configures to the dual connectivity (DC) UE through RRC connection signaling.
  • the base station where the PCell is located is called the master base station (master gNB, MgNB), and the base station where the other PSCell is located is called the secondary base station (gNB, SgNB).
  • the main base station is the control plane anchor point, that is, the terminal equipment and the main base station establish an RRC connection, and the main base station establishes a control plane connection with the core network element, and the main base station and the terminal equipment transmit RRC messages.
  • Part of RRC messages (for example, measurement configuration information, measurement reports, etc.) may also be sent between the secondary base station and the terminal equipment.
  • multiple serving cells in the main base station form an MCG.
  • the MCG may specifically include one PCell and one or more SCells.
  • the MCG may specifically include one PSCell and one or more SCells.
  • the original base station sends CHO configuration information to the terminal device when the source link quality is good.
  • the configuration information of the conditional slice may include handover trigger conditions and information about one or more candidate cells.
  • the information of the one or more candidate cells may include the PCI of the candidate cell and frequency information corresponding to the candidate cell.
  • the frequency information corresponding to the candidate cell may include one or more of the following: absolute frequency of the synchronization signal block SSB (absolute frequency), absolute frequency position of the reference resource module (common RB0) (such as absoluteFrequencyPointA), and frequency bandwidth list (such as frequencyBandList), subcarrier spacing (SCS) specific carrier list (such as scs-SpecificCarrierList).
  • the UE After receiving the configuration information of the conditional handover, the UE judges whether each candidate cell meets the handover trigger condition according to the configuration information, and takes a candidate cell that meets the handover trigger condition as the target cell; after the UE determines the target cell, it initiates to the target cell During the random access process, after the random access is completed, the UE sends an RRC message (such as an RRC reconfiguration complete message) to the base station to which the target cell belongs (ie, the target base station) to notify the target base station that the condition switching is complete.
  • an RRC message such as an RRC reconfiguration complete message
  • Fig. 1 is a schematic diagram of a communication architecture of an embodiment of the present application.
  • This communication architecture can be called (E-UTRA NR DC, EN-DC), or it can be called Option 3 series (Option 3 series).
  • the LTE base station serves as MN
  • the NR base station serves as a secondary node (SN) for DC.
  • both MN and SN are connected to EPC and can provide air interface transmission resources for data between UE and EPC.
  • MN and SN are connected to EPC
  • MN and SN can be connected to EPC respectively.
  • MN and SN are connected to EPC or MN is connected to EPC, and SN is connected to EPC through MN.
  • MN can also be called an "anchor".
  • the LTE base station in this application may be an eNB or an ng-eNB, and the NR base station may be a gNB.
  • Fig. 2 is a schematic diagram of a communication architecture of another embodiment of the present application.
  • This communication architecture can be referred to as (NR E-UTRA DC, NE-DC) or Option 4 series (option 4 series).
  • the NR base station serves as the primary station
  • the LTE base station serves as the secondary station.
  • both the primary station and the secondary station are connected to the 5GC, and can provide air interface transmission resources for data between the UE and the 5GC.
  • MN and SN are connected to 5GC
  • MN and SN can be connected to 5GC respectively.
  • MN and SN are connected to 5GC or MN is connected to 5GC, and SN is connected to 5GC through MN.
  • Fig. 3 is a schematic diagram of a communication architecture of another embodiment of the present application.
  • This communication architecture can be called (Next Generation E-UTRA NR DC, NG EN-DC) or Option 7 series (Option 7 series).
  • the LTE base station is the primary station
  • the NR base station is the secondary station for DC.
  • both MN and SN are connected to 5GC to provide air interface transmission resources for data between UE and 5GC.
  • MN and SN can be connected to 5GC respectively.
  • MN and SN are connected to 5GC or MN is connected to 5GC, and SN is connected to 5GC through MN.
  • Fig. 4 shows a schematic flowchart of a method for cell handover in a secondary base station in a traditional solution.
  • the source SN sends an SN handover request message to the MN.
  • the handover request message includes the identification of the candidate target SN, possible SCG configuration, and measurement results related to the target SN.
  • the MN sends an SN addition request message to the target SN (T-SN), where the SN addition request message is used to request resource allocation for the terminal device.
  • the SN addition request message includes the measurement result related to the target SN in step 401.
  • the target SN feeds back an SN addition request confirmation message to the MN, where the SN addition request confirmation message is used to indicate resources allocated for the terminal device.
  • the SN addition request confirmation message includes the complete or incremental RRC configuration (also called SN RRC configuration).
  • the MN sends an RRC reconfiguration message to the terminal device, where the RRC reconfiguration message includes the foregoing RRC configuration.
  • the terminal device applies the new configuration in the RRC reconfiguration message, and sends an RRC reconfiguration complete message to the MN.
  • the terminal device cannot comply with part or all of the configuration in the RRC reconfiguration message, the reconfiguration of the terminal device fails.
  • the terminal device may not perform step 405, or the terminal device may indicate that the reconfiguration fails through the RRC reconfiguration complete message in step 405.
  • the MN determines that the resource allocation of the target SN is successful, and sends an SN handover confirmation message to the MN.
  • the terminal device initiates random access to the target SN, and completes the synchronization of the target SN.
  • the terminal device can communicate with two access network devices at the same time, how can the cell under the primary/secondary access network device be switched, or the primary/secondary access network device It is a problem to be solved urgently to improve the reliability and robustness of cell handover or the change of primary/secondary access network equipment.
  • This application introduces conditional primary/secondary access network equipment change (conditional MN/SN change or CHO MN/SN change) or conditional switching to improve the reliability and robustness of handover.
  • the primary access network equipment or The secondary access network equipment decides or negotiates to determine the handover trigger condition of one or more candidate primary/secondary access network equipment condition changes, and then sends it to the terminal device.
  • the terminal device determines whether the handover trigger condition is met, and sends a message to the candidate that meets the trigger condition.
  • the cell initiates a connection. In this way, the condition triggered by the condition is issued in advance to avoid the failure of the source access network device due to the gradual decline in communication quality. Robustness.
  • Fig. 5 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • this application can be applied to a communication system including a primary access network device and a first secondary access network device, that is, a terminal device can form a connection with the primary access network device and the first secondary access network device. Double connection.
  • the execution subject of the embodiment of the present application is the main access network device, it may specifically be a chip in the main access network device.
  • the execution subject when the execution subject is the auxiliary access network device, it may specifically be a chip in the auxiliary access network device.
  • the execution body when the execution body is a terminal device, it may be a chip in the terminal device.
  • the following embodiments take the main access network device, the auxiliary access network device or the terminal device as an example for description, but the application is not limited thereto.
  • the first secondary access network device determines handover trigger condition information of one or more cells under at least one candidate secondary access network device.
  • the first secondary access network device may determine the handover trigger condition information of one or more cells under each candidate secondary access network device in the at least one candidate secondary access network device.
  • the first access network device determines the handover trigger condition information of one or more cells under at least one candidate secondary access network device according to the measurement result, where the handover trigger condition can be configured per cell or can be Each candidate secondary access network device is configured (that is, the cells under the same access network device can use the same handover trigger condition).
  • one or more cells under a candidate secondary access network device may be all or part of the cells under the candidate secondary access network device, which is not limited in this application.
  • the handover trigger condition information of the first cell under the at least one candidate access network device is used to indicate the handover trigger condition of the first cell, and the handover trigger condition of the first cell may be to trigger the terminal device to switch to The measurement quality threshold of the first cell or the threshold of the quality deviation that triggers the terminal device to switch to the first cell.
  • the quality deviation is the measurement quality between the terminal device and the serving cell and the difference between the terminal device and the first cell. The difference between the measurement quality.
  • the handover trigger condition of the first cell specifically includes the measurement quality threshold that triggers the terminal device to switch from the current serving cell to the first cell.
  • the measurement quality threshold that triggers the terminal device to switch from the current serving cell to the first cell.
  • the terminal device may switch from the current serving cell to the first cell.
  • the handover trigger condition of the first cell specifically includes a quality deviation threshold that triggers the terminal device to handover from the current serving cell to the first cell.
  • the quality deviation includes the measurement quality between the terminal device and the current serving cell, and the difference between the measurement quality between the terminal device and the first cell; or the quality deviation is the difference between the terminal device and the first cell.
  • the measurement quality between cells and the difference between the measurement quality between the terminal device and the current serving cell For example, if the difference between the measurement quality between the terminal device and the current serving cell and the measurement quality between the terminal device and the first cell is greater than or equal to the quality deviation threshold, the terminal device can use the current service The cell is switched to the first cell.
  • the first cell is one of the one or more cells.
  • the first cell is used as an example for description in the embodiment of the present application.
  • the handover trigger condition information may also be used to indicate the effective time of the handover trigger condition information or the priority of the first cell.
  • the effective time of the handover trigger condition information of the first cell means that the terminal device does not perform cell handover according to the handover trigger condition information when the effective time is exceeded.
  • the valid time can be controlled by a timer. For example, when the terminal device receives the handover trigger condition information, it starts the timer, and when the timer expires, releases the configuration of the trigger condition information. Among them, when the terminal device detects that the handover trigger condition of a certain cell is met, the timer can stop timing.
  • the terminal device can determine which cell to preferentially switch over according to the priorities of different cells. If the terminal device determines that the handover trigger condition of the cell with the first priority is not currently met, the terminal device continues to determine whether the handover of the cell with the second priority is met condition.
  • the trigger condition can also be used to indicate the handover trigger condition of the first cell, the effective time of the handover trigger condition information of the first cell, or two or three items of the priority of the first cell.
  • the application is not limited.
  • the primary access network device acquires handover trigger condition information of one or more cells under at least one candidate secondary access network device.
  • the primary access network device may initiate the process of adding the at least one candidate secondary access network device. It is used to request the at least one candidate access network device to allocate resources for the terminal device, and to enable the added candidate secondary access network device to form a DC with the main access network device to communicate with the terminal device.
  • the handover trigger condition information may be carried in a message carried on the X2/Xn interface (for example, a CHO SN switch request (change required), or a new X2/Xn interface message).
  • the X2/Xn interface message may also carry the identifier of the at least one candidate secondary access network device.
  • the message of the X2/Xn interface may also carry the cell identity of one or more cells under the at least one candidate secondary access network device, and/or the SCG configuration, which may be used to support the secondary cell group Incremental configuration.
  • the process for the primary access network device to add the candidate secondary access network device may be initiated by the primary access network device.
  • the primary access network device sends a trigger to the candidate secondary access network device that it wants to add.
  • the candidate secondary access network device may also feed back a response message to the trigger request.
  • step 502 may specifically be that the primary access network device receives handover trigger condition information of one or more cells under the at least one candidate secondary access network device from the first secondary access network device.
  • the first secondary access network device sends the handover trigger condition information of one or more cells under the at least one candidate secondary access network device to the primary access network device.
  • the first secondary access network device may detect the handover trigger condition information of one or more cells under at least one candidate secondary access network device, and send the at least one candidate secondary access to the primary access network device Handover trigger condition information of one or more cells under the network equipment.
  • step 502 may specifically be that the primary access network device may set the handover trigger condition information of one or more cells under at least one candidate secondary access network device.
  • the MN may obtain information from the SN according to The candidate SN list and measurement result information (measurement result information is also optional) set handover trigger condition information.
  • step 501 may not be executed in this embodiment.
  • step 502 may specifically be that the primary access network device may first receive the handover trigger condition information of one or more cells under multiple candidate secondary access network devices from the first secondary access network device. , And then modify or adjust to obtain the handover trigger condition information of one or more cells under at least one candidate secondary access network device carried in the first message in step 503.
  • the number of cells to which the handover trigger condition information in step 502 belongs may be different from the number of cells to which the handover trigger condition information included in the first message in step 503 belongs. For example, if the primary access network device fails to add the secondary access network device to which the cell belongs, the first message does not carry the handover trigger condition information of the cell under the access network device.
  • the primary access network device may also send a second message to the first secondary access network device, where the second message is used to indicate the addition of the candidate secondary access network device by the primary access network device.
  • the addition situation may be that the primary access network device successfully adds the candidate secondary access network device, or the addition of the secondary access network device fails.
  • the primary access network device may only indicate through the second message that the candidate secondary access network device is successfully added, that is, the first secondary access network device can directly learn the candidate secondary access network device successfully added by the primary access network device.
  • the primary access network device only indicates the candidate secondary access network device whose connection establishment failed through the second message, that is, the candidate secondary access network device that has been successfully added to the primary access network device is indirectly learned.
  • the primary access network device instructs the candidate secondary access network device that is successfully added and the candidate secondary access network device that fails to be added through the second message.
  • the second message indicating that the candidate secondary access network device has been successfully added may be implemented by confirming the confirmation information of the candidate secondary access network device that is successfully added, that is, the second message includes the candidate secondary access network device that has been successfully added.
  • the confirmation information may be an acknowledgement character (acknowledgement character, ACK).
  • the second message indicating that the candidate secondary access network device failed to be added can be implemented by adding the information of the failed candidate secondary access network device, that is, the second message includes the information of the candidate secondary access network device that failed to add, for example, , A negative acknowledgement (NACK) indicates that the corresponding candidate secondary access network device failed to be added.
  • NACK negative acknowledgement
  • the second message may also carry the reason why the addition of the candidate secondary access network device failed to be added.
  • the primary access network device sends a first message to the terminal device, where the first message includes the handover trigger condition information.
  • the terminal device receives the first message from the main access network device.
  • the primary access network device sends a first message including the handover trigger condition information of one or more cells under the at least one candidate secondary access network device to the terminal device, so that the terminal device can actively proceed according to the handover trigger condition information
  • the handover of the cell under the auxiliary access network device improves the success rate of the cell handover.
  • the first message may be an RRC reconfiguration message or a brand new message, which is not limited in this application.
  • the primary access network device may also obtain measurement quality information of one or more cells under the at least one candidate secondary access network device, or one or more cells under the at least one candidate secondary access network device
  • the configuration information of the cell is carried in the first message and sent to the terminal device.
  • the configuration information of the first cell of the one or more cells may include the time-frequency resource allocated to the terminal device by the candidate secondary access network device to which the first cell belongs, the measurement quality of the first cell, or the first cell At least one of the addresses of candidate secondary access network devices to which a cell belongs.
  • the address of the candidate secondary access network device may be used by the primary access network device to forward data through the candidate secondary access device.
  • the primary access network device may receive the measurement quality information of one or more cells under the first candidate secondary access network device from the first candidate secondary access network device, or it may be pre-stored in the primary access network device.
  • the storage module of the networked device it is obtained from the storage module.
  • the first candidate secondary access network device may be any one of the at least one candidate secondary access network device, that is, the primary access network device may be from the at least one candidate secondary access network device.
  • Each candidate secondary access network device in the candidate secondary access network device receives measurement quality information of one or more cells under the corresponding candidate secondary access network device.
  • the primary access network device acquiring the configuration information of one or more cells under the at least one candidate secondary access network device may be received from each candidate secondary access network device, or may be pre-stored in the The storage module of the main access network device is obtained from the storage module.
  • the primary access network device may send the first request to the corresponding candidate secondary access network device. That is, after receiving the first request, the first candidate secondary access network device sends the configuration information to the primary access network device.
  • the primary access network device may send a request to each candidate secondary access network device in the at least one candidate secondary access network device to request each candidate secondary access network device to respond to the configuration information.
  • the first request and the aforementioned trigger request can be carried in the same message, and correspondingly, the configuration information can also be carried in the response message of the aforementioned trigger request.
  • configuration information can be carried in an SN radio resource control reconfiguration (RRC reconfiguration) message, or can be carried in a brand new message, which is not limited in this application.
  • RRC reconfiguration radio resource control reconfiguration
  • the terminal device sends a first response message to the primary access network device, where the first response message is used to indicate a second cell under the second secondary access network device among the at least one candidate secondary access network device, the The second cell satisfies the handover trigger condition information of the second cell.
  • the main access network device receives the first response message from the terminal device.
  • the terminal device determines that the second cell satisfies the handover trigger condition indicated by the handover trigger condition information of the second cell according to the handover trigger condition information of each cell, that is, the terminal device is about to switch to the second cell.
  • the terminal device sends a first response message to the main access network device, and indicates the second cell through the first response message.
  • the terminal device may initiate random access to the second secondary access network device to which the second cell belongs, and complete synchronization with the second secondary access network device.
  • the above step 504 may not be performed, that is, the terminal device may not notify the primary access network device of the secondary access network device finally selected.
  • the first response message may be an RRC reconfiguration complete (complete) message.
  • the first response message may include the cell identity of the second cell.
  • the primary access network device may also inform the first secondary access network device or the second secondary access network device of the second secondary access network device that the terminal device selects from the at least one candidate secondary access network device The second cell under the network equipment.
  • the primary access network device sends a second response message to the first secondary access network device, where the second response message is used to indicate the second cell.
  • the primary access network device sends a third response message to the second secondary access network device, where the third response message is used to indicate the second message.
  • the second response message may include the address of the second auxiliary access network device, that is, the main access network device may send the address of the second auxiliary access network device to the first auxiliary access network device, and the first auxiliary access network device
  • the data can be sent to the second auxiliary access network device, and the second auxiliary access network device forwards the data to the terminal device.
  • the primary access network device receives the handover trigger condition information of one or more cells under at least one candidate secondary access network device from the first secondary access network device, and sends to the terminal device information including
  • the first message of the handover trigger condition information of one or more cells under the at least one candidate secondary access network device enables the terminal device to actively perform cell handover under the secondary access network device according to the handover trigger condition information, thereby
  • the success rate of cell handover is improved, the speed of cell change under the auxiliary access network device is improved, and the flexibility of cell change under the auxiliary access network device is improved.
  • Fig. 6 shows a schematic flowchart of a method for cell handover under a primary access network device in a traditional solution.
  • the source MN determines the target MN, and sends a handover request to the target MN.
  • the target MN After receiving the handover request, the target MN sends an SN addition request (SN addition request) to the target SN.
  • the target SN feeds back a response message (SN addition request acknowledge) to the target MN.
  • the target MN sends a handover request response message to the source MN.
  • the source MN sends an SN release request (SN release request) to the source SN.
  • the SN feeds back the response message of the SN release request (SN release request acknowledge).
  • the source MN sends an RRC connection reconfiguration (connection reconfiguration) to the terminal device.
  • the terminal device initiates a random access (random access procedure) to the target MN.
  • the terminal device sends an RRC connection reconfiguration complete message (RRC connection reconfiguration complete) to the target MN.
  • RRC connection reconfiguration complete RRC connection reconfiguration complete
  • the terminal device initiates random access to the target SN.
  • a terminal device can communicate with two access network devices at the same time. How to perform cell handover under the primary access network device to improve the success rate of cell handover needs to be solved urgently.
  • Fig. 7 shows a schematic flowchart of a communication method according to an embodiment of the present application.
  • this application can be applied to a communication system including a first primary access network device and a first secondary access network device, that is, a terminal device can communicate with the first primary access network device and the first secondary access network device.
  • the connected devices form a dual connection.
  • the execution subject of the embodiment of the present application is the main access network device, it may specifically be a chip in the main access network device.
  • the execution subject when the execution subject is the auxiliary access network device, it may specifically be a chip in the auxiliary access network device.
  • the execution body when the execution body is a terminal device, it may be a chip in the terminal device.
  • the following embodiments take the main access network device, the auxiliary access network device or the terminal device as an example for description, but the application is not limited thereto.
  • the first MN obtains a handover trigger condition of one or more cells under at least one candidate MN.
  • the first MN may receive the handover trigger conditions of one or more cells under each candidate MN from each candidate MN, or may generate one or more of the at least one candidate MN according to the stored information of each candidate MN.
  • the handover trigger condition of each cell for example, the first MN may select the at least one candidate MN according to the measurement report.
  • the first MN receives the handover trigger condition of one or more cells under each candidate MN from each candidate MN, which may be that each candidate MN actively sends the handover trigger condition of one or more cells, or the first MN After sending a handover trigger condition request to a certain candidate MN (for example, the first candidate MN), the handover trigger condition fed back by the first candidate MN is received.
  • the first candidate MN may add at least one candidate secondary access network device, that is, add a secondary access network device capable of establishing a DC with the first candidate MN. For example, sending an SN addition request (addition request) to the auxiliary access network device, and after receiving the addition request ack feedback from the auxiliary access network device, it is determined that the auxiliary access network device is successfully added.
  • the candidate secondary access network device added by each of the at least one candidate MN may be determined by the first MN, or may be determined by each candidate MN itself.
  • the handover trigger condition request may be a CHO request (request) message or a new X2/Xn interface message.
  • the handover trigger condition may be carried in the handover request acknowledgement information (CHO request acknowledge).
  • the CHO request message may also carry the port identifier (SN UE X2AP ID or SN UE XnAP ID) of the first SN, the identifier of the first SN, and the UE context information of the first SN. If the candidate secondary access network device added by a certain candidate MN (for example, the first candidate MN) is determined by the first MN, the CHO request may also carry the candidate secondary access network device to be added by the first candidate MN Logo.
  • the at least one candidate MN may add respective candidate secondary access network devices respectively.
  • candidate secondary access network devices respectively added by the at least one candidate MN may include the first secondary access network device, or may not include the first secondary access network device, which is not limited in this application.
  • the handover trigger condition of the first cell includes a measurement quality threshold that triggers a terminal device to switch to the first cell or a quality deviation threshold that triggers a terminal device to switch to the first cell, and the quality deviation includes the The difference between the measurement quality between the terminal equipment and the serving cell and the measurement quality between the terminal equipment and the first cell; or the quality deviation includes the measurement quality between the terminal equipment and the first cell, And the difference in measurement quality between the terminal device and the current serving cell.
  • the first cell is a cell under the MN or a cell under the SN.
  • the handover trigger condition in the embodiment of the present application is for the cell.
  • the following description takes the first cell as an example, but the present application is not limited to this.
  • the first cell is a certain cell under the at least one candidate MN.
  • the handover trigger condition of the first cell is specifically a measurement quality threshold that triggers the terminal device to hand over from the current serving cell to the first cell. For example, in the case that the measurement quality of the terminal device and the first cell is greater than or equal to the measurement quality threshold, the terminal device may switch from the current serving cell to the first cell.
  • the handover trigger condition of the first cell is specifically a quality deviation threshold that triggers the terminal device to handover from the current serving cell to the first cell.
  • the quality deviation is the difference between the measurement quality between the terminal device and the current serving cell and the measurement quality between the terminal device and the first cell. For example, if the difference between the measurement quality between the terminal device and the current serving cell and the measurement quality between the terminal device and the first cell is greater than or equal to the quality deviation threshold, the terminal device can use the current service The cell is switched to the first cell.
  • the first MN sends a first message to a terminal device, where the first message is used to indicate a handover trigger condition of one or more cells under the at least one candidate MN.
  • the terminal device receives the first message from the first MN.
  • the terminal device receives the first message from the first MN, and determines the second MN that meets the handover trigger condition according to the handover trigger condition. Specifically, the second cell under the second MN satisfies the handover trigger condition of the second cell.
  • the embodiment of the present application enables the terminal device to actively perform cell handover under the secondary access network device according to the handover trigger condition information, thereby improving the success rate of cell handover.
  • the first message may directly include the handover trigger condition of one or more cells under the at least one candidate MN, or may indirectly indicate the handover trigger conditions of one or more cells under the at least one candidate MN through other information. Switch the trigger condition.
  • the terminal device may initiate random access with the second MN and the second SN.
  • the first message may be an RRC reconfiguration message or a brand new message, which is not limited in this application.
  • the terminal device determining the second MN may specifically be based on the handover trigger condition of one or more cells under the at least one candidate MN and the measurement quality of one or more cells under the at least one candidate MN, from the at least one candidate MN.
  • a candidate MN determines the second cell under the second MN.
  • the terminal device may detect the measurement quality of the cell under each of the at least one candidate MN. If the measurement quality of the second cell under the second MN is greater than the quality threshold of the second cell, the second cell is taken as the cell to be handed over. Or the terminal device detects that the difference between the measurement quality of the current serving cell and the measurement quality of the second cell under the second MN is greater than or equal to the difference of the measurement quality of the second cell, and the second cell is used as the cell to be handed over .
  • the first message is also used to indicate one or more cells under at least one candidate SN corresponding to each MN in the at least one candidate MN, and the information of one or more cells under the at least one candidate SN. Switch the trigger condition.
  • the first message may also be used to indicate at least one candidate SN that can perform DC with each candidate MN, so that the terminal device After the MN is handed over, the second SN can be selected from the at least one candidate SN corresponding to the selected MN according to the handover trigger condition of the at least one candidate SN corresponding to the selected MN, so as to avoid that the selection cannot be DC with the second MN.
  • the SN improves communication efficiency.
  • the content of the handover trigger condition of any one of the one or more cells under the at least one candidate SN may be the same as the specific content of the handover trigger condition of the first cell described above. To avoid repetition, details are not described herein.
  • the terminal device determining that the second SN may specifically be the terminal device according to the handover trigger condition of one or more cells under at least one candidate SN corresponding to the second MN and one or more of the at least one candidate SN
  • the measurement quality of the cell is used to determine the second cell under the second SN from the at least one candidate MN.
  • the second SN and the first SN may be the same SN, or may be different SNs. That is, at least one candidate SN corresponding to the second MN may include the first SN, and the terminal device selects the one SN as the target SN.
  • the first message may also be used to indicate the effective time of the handover trigger condition.
  • the handover trigger condition of each cell can have an effective time, and the corresponding handover trigger condition is released after the effective time, or the handover trigger conditions of all cells have a valid time, that is, all handover triggers are released after the effective time condition.
  • the terminal device sends a first response message to the second MN.
  • the terminal device may send a first response message to the second MN, where the first response message is used to indicate the second cell under the second MN.
  • the first response message may be an RRC connection reconfiguration complete message.
  • the first response message includes the cell identity of the second cell under the second MN.
  • the first response message may also be used to indicate the second cell under the second SN.
  • the first response message includes the cell identity of the second cell under the second SN.
  • the second MN sends first information to the first SN, where the first information is used to indicate that the second SN and the first SN are the same SN.
  • the second MN may directly send to the first SN indication information for indicating that the second SN and the first SN are the same SN. For example, after adding the first SN, the second MN establishes a connection with the first SN.
  • the first information may be carried in an SN reconfiguration complete message, and the SN reconfiguration complete message is used to instruct the terminal device to complete access to the second MN.
  • the second MN sends second information to the second SN, where the second information is used to instruct the first SN to save the context information of the terminal device.
  • the second MN may also directly send the second indication information for instructing the first SN to save the context information of the terminal device to the second SN. That is, after the first SN receives the first indication information and the second indication information, the first SN may not release the UE context stored in the first SN, which avoids re-establishment after release, thereby saving resource overhead.
  • the second MN may send first information to the first MN, where the first information is used to indicate that the second SN and the first SN are the same SN.
  • the first information may be carried in a release message, and the release message is used to instruct the first MN to release the connection with the terminal device and release the connection with the first SN.
  • the first MN receives the first information sent by the second MN, and sends second information to the first SN, where the second information is used to instruct the first SN to save the context information of the terminal device.
  • the second MN may send first information to the first MN, and the first information indicates that the second SN and the first SN are the same SN.
  • the first MN sends the second information to the first SN.
  • the first SN may not release the UE context stored in the first SN, which avoids the need to release the UE context. Re-establishment, thereby saving resource overhead.
  • steps 704 and 705 and steps 706 and 707 in the embodiment of the present application are parallel solutions, that is, only steps 705 and 706 are executed after step 703, or only steps 706 and 707 are executed after step 703.
  • steps 704-707 may not be performed in this application.
  • the second MN sends to the second SN
  • the first information can be carried in a release message.
  • the release message is used to instruct the first MN to release the connection with the terminal device and release the connection with the first SN An SN connection.
  • the first MN may also send the release message to the first SN, so that the first SN releases the connection with the terminal device and releases the connection with the first MN.
  • the first SN releases control plane resources related to the terminal device context according to the release message.
  • FIG. 8 shows a schematic flowchart of a communication method according to a specific embodiment of the present application.
  • the first SN determines the handover trigger condition information of one or more cells under at least one candidate secondary access network device.
  • At least one candidate secondary access network device in the embodiment of the present application may be described by taking candidate SN1 and candidate SN2 as examples.
  • the first SN sends the handover trigger condition information of one or more cells under the at least one candidate secondary access network device to the MN.
  • the MN sends a first conditional SN addition request (conditional SN addition request) to the at least one candidate secondary access network device according to the handover trigger condition information of one or more cells under the at least one candidate secondary access network device. Specifically, the MN sends a first conditional SN addition request to the candidate SN1, and the first conditional SN addition request is used to request the candidate SN1 to be added to the MN.
  • conditional SN addition request conditional SN addition request
  • first conditional SN addition request corresponds to the “first request” in the embodiment shown in FIG. 5.
  • the candidate SN1 feeds back a response message for the first conditional SN addition request to the MN, where the first response message carries the first configuration information.
  • the MN sends a second conditional SN addition request to the candidate SN2, where the second conditional SN addition request is used to request to add the candidate SN2 for the MN.
  • conditional SN addition request corresponds to the “first request” in the embodiment shown in FIG. 5.
  • the candidate SN2 feeds back a response message for the second conditional SN addition request to the MN, and the response message carries the second configuration information
  • step 803 does not limit the sequence of step 803 and step 804.
  • the MN sends a first message to the terminal device, where the first message includes the handover trigger condition information.
  • the terminal device sends a first response message to the MN, where the first response message is used to indicate a second cell under the second secondary access network device among the at least one candidate secondary access network device.
  • the MN sends the second response message to the first SN, where the second response message is used to indicate the second cell under the second secondary access network device among the at least one candidate secondary access network device.
  • the second response message may be an SN switch confirmation (change confirm) message.
  • the MN sends the third response message to the candidate SN1, where the third response message is used to indicate the second cell under the second secondary access network device of the at least one candidate secondary access network device.
  • the third response message may be an SN reconfiguration complete (reconfiguration complete) message.
  • the candidate SN1 corresponds to the second SN in the embodiment shown in FIG. 5.
  • the MN initiates random access to the candidate SN1.
  • step 811 and step 809 or step 810 is not limited.
  • FIG. 9 shows a schematic flowchart of a communication method according to a specific embodiment of the present application.
  • the first MN sends a handover trigger condition request to at least one candidate MN.
  • the embodiment of the present application takes at least one candidate MN as a candidate MN1 and a candidate MN2 as an example for description. That is, the first trigger condition request is sent to the candidate MN1.
  • the candidate MN1 sends an SN addition request to the candidate SN1 and the first SN.
  • the candidate MN1 receives the addition confirmation information sent by the candidate SN1.
  • the terminal device can establish DC with the candidate MN1 and candidate SN1 at the same time.
  • the candidate MN1 sends an SN addition request to the first SN.
  • the candidate MN1 receives the addition confirmation information sent by the first SN.
  • the terminal device can establish DC with the candidate MN1 and the first SN at the same time.
  • the candidate MN1 sends a first handover trigger condition to the first MN.
  • the first MN sends a second handover trigger condition request to the candidate MN2.
  • the candidate MN2 sends an SN addition request to the first SN and the candidate SN2, and receives addition confirmation information sent by the first SN and the candidate SN2 respectively.
  • the candidate MN2 receives the addition confirmation information sent by the candidate SN2.
  • the terminal device can establish DC with the candidate MN2 and the candidate SN2 at the same time.
  • the candidate MN2 sends an SN addition request to the first SN.
  • the candidate MN2 receives the addition confirmation information sent by the first SN.
  • the terminal device can establish a DC with the candidate MN2 and the first SN at the same time.
  • the candidate MN2 sends a second handover trigger condition to the first MN.
  • the at least one handover trigger condition received by the first MN includes the first handover trigger condition and the second handover trigger condition.
  • steps 901-905 and steps 906-912 is not limited.
  • the order of steps 902-903 and steps 904-905 is not limited.
  • the order of steps 908-909 and steps 910-911 is not limited.
  • the first MN sends a first message, where the first message is used to indicate a handover trigger condition of one or more cells under the at least one candidate MN.
  • the terminal device initiates random access to the candidate MN1.
  • candidate MN1 corresponds to the second MN in the embodiment shown in FIG. 7.
  • the terminal device sends a first response message to the candidate MN1, where the first response message is used to indicate a second cell under the second MN.
  • the terminal device initiates random access to the first SN.
  • first SN and the second SN are the same SN.
  • the candidate MN1 sends the first response message to the first SN.
  • the candidate MN1 sends first information to the first MN, where the first information is used to indicate that the second SN is the same SN as the first SN.
  • the first MN sends second information to the first SN, where the second information is used to instruct the first SN to save the context information of the terminal device.
  • the methods and operations implemented by the terminal can also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the access network device can also be implemented by It can be implemented by components (such as chips or circuits) of access network equipment.
  • the foregoing method embodiments are described from the perspective of the interaction of various network elements. From these descriptions, the method steps performed by a single network element and related descriptions can be obtained directly and without doubt. For the sake of brevity, I will not To repeat.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitter device or the receiver device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • FIG. 10 shows a schematic block diagram of a communication device 1000 according to an embodiment of the present application.
  • the device 1000 may correspond to the first MN or the chip in the first MN in the embodiment shown in FIG. 5 or FIG. 8, and may have any function of the MN in the method.
  • the device 1000 includes a processing module 1010 and a transceiver module 1020.
  • the processing module 1010 is configured to obtain handover trigger condition information of one or more cells under at least one candidate secondary access network device;
  • the transceiver module 1020 is configured to send a first message to the terminal device, where the first message includes the handover trigger condition information.
  • the processing module 1010 is specifically configured to receive the handover trigger condition information from the first auxiliary access network device through the transceiver module.
  • the processing module 1010 is specifically configured to: generate the handover trigger condition information.
  • the transceiver module 1020 is further configured to receive measurement quality information of one or more cells under the at least one candidate secondary access network device from the first secondary access network device; the transceiver module is also configured to Receive configuration information of one or more cells under the first candidate access network device from the first candidate secondary access network device among the at least one candidate secondary access network device; the transceiver module is specifically configured to: The terminal device sends the first message, and the first message further includes at least one of cell identification, configuration information, and measurement quality information of one or more cells under the at least one candidate secondary access network device.
  • the transceiver module 1020 is further configured to send a first request to the first candidate secondary access network device, and the first request is used to request the configuration of the first candidate secondary access network device for the terminal device information.
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, the handover trigger condition of the first cell, and the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the quality deviation that triggers the terminal device to switch to the first cell
  • the quality deviation includes the measurement quality between the terminal equipment and the serving cell, and the difference between the measurement quality between the terminal equipment and the first cell.
  • the transceiver module 1020 is further configured to receive a first response message from the terminal device, and the first response message is used to instruct the terminal device to select a second auxiliary access network device from the at least one candidate auxiliary access network device.
  • the transceiver module 1020 is further configured to send a second message to the first secondary access network device, where the second message is used to indicate the addition of the candidate secondary access network device by the primary access network device.
  • the second message includes confirmation information of the candidate secondary access network device successfully added by the primary access network device, and/or information of the candidate secondary access network device failed to be added by the primary access network device.
  • FIG. 11 shows a communication device 1100 provided by an embodiment of the present application.
  • the device 1100 may be the first MN described in FIG. 5 or FIG. 8.
  • the device can adopt the hardware architecture shown in FIG. 11.
  • the device may include a processor 1110 and a transceiver 1120.
  • the device may also include a memory 1130.
  • the processor 1110, the transceiver 1120, and the memory 1130 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 1010 in FIG. 10 may be implemented by the processor 1110, and the related functions implemented by the transceiver module 1020 may be implemented by the processor 1110 controlling the transceiver 1120.
  • the processor 1110 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, terminal equipment, or chips), execute software programs, and process data in the software programs.
  • the processor 1110 may include one or more processors, such as one or more central processing units (CPU).
  • processors such as one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 1120 is used to send and receive data and/or signals, and receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 1130 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM), the memory 1140 is used to store related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable memory
  • CD-ROM compact disc
  • the memory 1140 is used to store related instructions and data.
  • the memory 1130 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 1110.
  • the processor 1110 is used to control the transceiver to perform information transmission with the terminal device.
  • the processor 1110 is used to control the transceiver to perform information transmission with the terminal device.
  • the apparatus 1100 may further include an output device and an input device.
  • the output device communicates with the processor 1110 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor and can receive user input in a variety of ways.
  • the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 11 only shows a simplified design of the communication device.
  • the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement the application are protected by this application. Within range.
  • the device 1100 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 1110 in the terminal device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal device or a circuit.
  • the device can be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 12 shows a schematic block diagram of a communication device 1200 according to an embodiment of the present application.
  • the apparatus 1200 may correspond to the first SN or the chip in the first SN in the embodiment shown in FIG. 5 or FIG. 8, and may have any function of the first SN in the method.
  • the device 1200 includes a processing module 1210 and a transceiver module 1220.
  • the processing module 1210 is configured to determine the handover trigger condition information of one or more cells under at least one candidate secondary access network device
  • the transceiver module 1220 is configured to send the handover trigger condition information to the main access network device.
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, the handover trigger condition of the first cell, and the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the quality deviation that triggers the terminal device to switch to the first cell
  • the quality deviation is the difference between the measurement quality between the terminal device and the serving cell and the measurement quality between the terminal device and the first cell.
  • the transceiver module 1220 is further configured to send measurement quality information of one or more cells under the at least one candidate secondary access network device to the primary access network device.
  • the transceiver module 1220 is further configured to receive a second message from the primary access network device, the second message is used to indicate the addition of the primary access network device to the at least one candidate secondary access network device.
  • the second message includes confirmation information of the candidate secondary access network device successfully added by the primary access network device among the at least one candidate secondary access network device, and/or the at least one candidate secondary access network device Information about the candidate secondary access network device that failed to add the primary access network device in the device.
  • Fig. 13 shows a communication device 1300 provided by an embodiment of the present application.
  • the device 1300 may be the first SN described in Fig. 5 or Fig. 8.
  • the device can adopt the hardware architecture shown in FIG. 13.
  • the device may include a processor 1310 and a transceiver 1320.
  • the device may also include a memory 1330.
  • the processor 1310, the transceiver 1320 and the memory 1330 communicate with each other through an internal connection path.
  • the relevant functions implemented by the processing module 1320 in FIG. 13 may be implemented by the processor 1310, and the relevant functions implemented by the transceiver module 1310 may be implemented by the processor 1310 controlling the transceiver 1320.
  • the processor 1310 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, terminal equipment, or chips), execute software programs, and process data in the software programs.
  • the processor 1310 may include one or more processors, such as one or more central processing units (CPU).
  • processors such as one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 1320 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 1330 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM), the memory 1330 is used to store related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable memory
  • CD-ROM compact disc
  • the memory 1330 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 1310.
  • the processor 1310 is used to control the transceiver to perform information transmission with the terminal device.
  • the processor 1310 is used to control the transceiver to perform information transmission with the terminal device.
  • the apparatus 1300 may further include an output device and an input device.
  • the output device communicates with the processor 1310 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 601 and can receive user input in various ways.
  • the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 13 only shows a simplified design of the communication device.
  • the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement the application are protected by this application. Within range.
  • the device 1300 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 1310 in the terminal device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes, and when the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal device or a circuit.
  • the device can be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 14 shows a schematic block diagram of a communication device 1400 according to an embodiment of the present application.
  • the apparatus 1400 may correspond to the terminal device or a chip in the terminal device in the embodiment shown in FIG. 5 or FIG. 8, and may have any function of the terminal device in the method of FIG. 5 or FIG.
  • the device 1400 includes a transceiver module 1410.
  • the transceiver module 1410 is configured to receive a first message from the primary access network device, where the first message includes handover trigger condition information of one or more cells under at least one candidate secondary access network device;
  • the transceiver module 1410 is further configured to send a first response message to the primary access network device, where the first response message is used to instruct the second secondary access network device of the at least one candidate secondary access network device.
  • a second cell where the second cell meets the handover trigger condition indicated by the handover trigger condition information of the second cell.
  • the apparatus 1400 may further include a processing module 1420 configured to determine the second auxiliary access network device from the at least one candidate auxiliary access network device.
  • the handover trigger condition information of the first cell under the at least one candidate secondary access network device is used to indicate the effective time of the handover trigger condition information of the first cell, the handover trigger condition of the first cell, and the first cell
  • the handover trigger condition of the first cell includes the measurement quality threshold that triggers the terminal device to switch to the first cell or the quality deviation that triggers the terminal device to switch to the first cell
  • the quality deviation includes the measurement quality between the terminal equipment and the serving cell, and the difference between the measurement quality between the terminal equipment and the first cell.
  • the first response message includes the cell identity of the second cell.
  • FIG. 15 shows a communication device 1500 provided by an embodiment of the present application.
  • the device 1500 may be the terminal device described in FIG. 5 or FIG. 8.
  • the device can adopt the hardware architecture shown in FIG. 15.
  • the device may include a processor 1510 and a transceiver 1520.
  • the device may also include a memory 1530.
  • the processor 1510, the transceiver 1520, and the memory 1530 communicate with each other through an internal connection path.
  • the relevant functions implemented by the processing module 1420 in FIG. 14 may be implemented by the processor 1510, and the relevant functions implemented by the transceiver module 1410 may be implemented by the processor 1510 controlling the transceiver 1520.
  • the processor 1510 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (such as base stations, terminal equipment, or chips), execute software programs, and process data in the software programs.
  • the processor 1510 may include one or more processors, such as one or more central processing units (CPU).
  • processors such as one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 1520 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 1530 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM), the memory 1530 is used to store related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable memory
  • CD-ROM compact disc
  • the memory 1530 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 1510.
  • the processor 1510 is used to control the transceiver to perform information transmission with the terminal device.
  • the processor 1510 is used to control the transceiver to perform information transmission with the terminal device.
  • the apparatus 1500 may further include an output device and an input device.
  • the output device communicates with the processor 1510 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 601 and can receive user input in various ways.
  • the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 15 only shows a simplified design of the communication device.
  • the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement the application are protected by this application. Within range.
  • the device 1500 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 1510 in the terminal device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions.
  • the chip may optionally include one or more memories for storing program codes, and when the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal device or a circuit.
  • the device can be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 16 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • only one memory and processor are shown in FIG. 16. In actual terminal equipment products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device
  • the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1610 and a processing unit 1620.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 1610 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1610 as the sending unit, that is, the transceiver unit 1610 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, receiver, or receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 1610 is used to perform sending and receiving operations on the terminal device side in the foregoing method embodiment
  • processing unit 1620 is used to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the processing unit 1620 is configured to execute the processing steps on the terminal device side in FIGS. 5 and 7-9.
  • the transceiving unit 1610 is used to perform the transceiving operations in step 301 and/or step 302 in FIG. 5 and FIG. 7-9, and/or the transceiving unit 1610 is also used to perform other transceiving operations on the terminal device side in the embodiment of the present application step.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the device shown in FIG. 17 can also be referred to.
  • the device can perform functions similar to the processor 1620 in FIG. 16.
  • the device includes a processor 1701, a data sending processor 1703, and a data receiving processor 1705.
  • the processing module in the foregoing embodiment may be the processor 1701 in FIG. 17 and completes corresponding functions.
  • the transceiver modules in the foregoing embodiment may be the sending data processor 1703 and the receiving data processor 1705 in FIG. 17.
  • the channel encoder and the channel decoder are shown in FIG. 17, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are merely illustrative.
  • Fig. 18 shows another form of the device of this embodiment.
  • the device 1800 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1803 and an interface 1804.
  • the processor 1803 completes the function of the aforementioned processing module
  • the interface 1804 completes the function of the aforementioned transceiver module.
  • the modulation subsystem includes a memory 1806, a processor 1803, and a program stored in the memory and capable of running on the processor. When the processor executes the program, the program described in the first to fifth embodiments is implemented. method.
  • the memory 1806 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the device 1800, as long as the memory 1806 can be connected to the processing 1803 can be.
  • the access network device may be as shown in FIG. 19, for example, the device 190 is a base station.
  • the base station can be applied to the system shown in Figs. 1 to 3 to perform the functions of the primary access network device or the secondary access network device in the foregoing method embodiment.
  • the base station 190 may include one or more DU 1901 and one or more CU 1902.
  • CU1902 can communicate with the next generation core network (NG core, NC).
  • the DU 1901 may include at least one antenna 19011, at least one radio frequency unit 19012, at least one processor 19014, and at least one memory 19014.
  • the DU 1901 part is mainly used for the transmission and reception of radio frequency signals, the conversion between radio frequency signals and baseband signals, and part of baseband processing.
  • the CU1902 may include at least one processor 19022 and at least one memory 19021.
  • CU1902 and DU1901 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.
  • the control plane interface can be Fs-C, such as F1-C
  • the user plane interface can be Fs-U, such as F1-U.
  • the CU 1902 part is mainly used for baseband processing and control of base stations.
  • the DU 1901 and the CU 1902 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the CU 1902 is the control center of the base station, which may also be called a processing unit, and is mainly used to complete baseband processing functions.
  • the CU 1902 may be used to control the base station to execute the operation procedure of the access network device in the foregoing method embodiment.
  • the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU.
  • CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements radio link control (radio link control, RLC), MAC, and physical functions.
  • the function of the (physical, PHY) layer is the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP.
  • functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU.
  • RRC radio resource control
  • packet data convergence protocol packet data convergence protocol
  • MAC medium access control
  • the base station 190 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs.
  • the DU may include at least one processor 19014 and at least one memory 19014, the RU may include at least one antenna 19011 and at least one radio frequency unit 19012, and the CU may include at least one processor 19022 and at least one memory 19021.
  • the CU1902 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, and can also support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks).
  • the memory 19021 and the processor 19022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the DU1901 can be composed of one or more single boards.
  • Multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), and can also support wireless access networks with different access standards (such as LTE network, 5G network or other network).
  • the memory 19014 and the processor 19014 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • a computer-readable storage medium is provided, and an instruction is stored thereon, and the method in the foregoing method embodiment is executed when the instruction is executed.
  • a computer program product containing instructions is provided, and when the instructions are executed, the method in the foregoing method embodiment is executed.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory synchronous link DRAM, SLDRAM
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program, and/or computer running on the processor.
  • application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a and/or B can mean: A alone exists, and both A and B exist. , There are three cases of B alone. Among them, the presence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood as having one or more A.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or an access network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

Landscapes

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

Abstract

本申请提供了通信方法和通信装置。该通信方法包括：主接入网设备从第一辅接入网设备中接收至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，并向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得该终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了辅接入网设备下的小区变更的速度，和提高了辅接入网设备下的小区变更的灵活性。

Description

通信方法和通信装置
本申请要求于2019年8月15日提交中国专利局、申请号为201910755236.9、申请名称为“通信方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，更具体地，涉及一种通信方法和通信装置。
背景技术
在传统的移动通信系统中，连接态的终端设备的移动性管理是由网络设备控制的，也就是说，网络设备通过发送切换消息指示终端设备切换到哪个小区以及如何进行切换。
具体地，源网络设备向终端设备发送切换消息以控制终端设备从源小区切换到目标小区。终端设备在接收到该切换消息后，根据该切换消息中包含的内容接入目标小区，因此，切换消息的成功发送是保证传统切换机制下成功切换的必要条件。但是，在长期演进(long term evolution，LTE)系统或新无线(new radio，NR)系统中，信道质量的快速衰减、或者终端设备的快速移动以及物体的遮挡，或者测量、切换准备的持续时间较长等都会导致切换消息发送失败，进而导致切换失败，使得切换成功率较低。
尤其在双连接(dual connectivity，DC)场景中，终端设备能够同时与两个网络设备进行通信，如何能够进行小区的切换，以提高小区切换的成功率亟待解决。
发明内容
本申请提供一种通信方法，通信装置，通信系统和可读存储介质，以期提高小区切换的成功率。
第一方面，提供了一种通信方法，该方法可以应用于包括主接入网设备和第一辅接入网设备的通信系统中，该方法包括：获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；向终端设备发送第一消息，该第一消息包括该切换触发条件信息。
主接入网设备从第一辅接入网设备中接收至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，并向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得该终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了辅接入网设备下的小区变更(change)的速度，和提高了辅接入网设备下的小区变更的灵活性。
在一些可能的实现方式中，该获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息包括：从该第一辅接入网设备接收该切换触发条件信息。
第一辅接入网设备可以检测得到至少一个候选辅接入网设备下的一个或多个小区的 切换触发条件信息，并向该主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，即第一辅接入网设备可以灵活调整该切换触发条件信息，提高了辅接入网设备下的小区变更的灵活性。
在一些可能的实现方式中，该获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息包括：生成该切换触发条件信息。
该主接入网设备可以设置至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，例如，主接入网设备为主站(master node，MN)，第一辅接入网设备为辅站(secondary node，SN)，MN根据从SN获取的候选的SN列表和测量结果信息(测量结果信息也是可选的)设置切换触发条件信息，即由MN来确定切换触发条件信息，提高了SN变更的灵活性。
在一些可能的实现方式中，该方法还包括：从该第一辅接入网设备接收该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息；从该至少一个候选辅接入网设备中的第一候选辅接入网设备接收该第一候选接入网设备下的一个或多个小区的配置信息；其中，前述向终端设备发送第一消息包括：向该终端设备发送该第一消息，该第一消息还包括该至少一个该候选辅接入网设备下的一个或多个小区的小区标识、配置信息和测量质量信息中的至少一项。
该一个或多个小区中的第一小区的配置信息可以是该第一小区所属的候选辅接入网设备为终端设备分配的时频资源、该第一小区的无线资源控制配置(RRC configuration)、该第一小区的测量质量或者该第一小区所属的候选辅接入网设备的地址中的至少一项，从而提高了终端设备切换到该第一小区所属的接入网设备之后的通信质量。
在一些可能的实现方式中，在接收该第一小区的配置信息之前，该方法还包括：向该第一候选辅接入网设备发送第一请求，该第一请求用于请求该第一候选辅接入网设备为该终端设备配置的配置信息。
也就是说，第一候选辅接入网设备在接收到该第一请求后，向该主接入网设备发送该配置信息，避免了在无需求的情况下发送的配置信息造成的信令浪费。
在一些可能的实现方式中，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
通过上述方式限制切换小区的选择都可以有助于更进一步提高切换后的通信质量或者提高小区切换的灵活性。
在一些可能的实现方式中，该方法还包括：从该终端设备接收第一响应消息，该第一响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区的小区标识，其中，该第二小区满足该第二小区的切换触发条件信息指示的切换触发条件。
MN可以从该终端设备中获知终端设备选中的即将切换到的小区的小区标识，避免MN与第一SN同时与终端进行双连接通信，有助于提高通信效率。
在一些可能的实现方式中，该方法还包括：向该第一辅接入网设备发送第二消息，该 第二消息用于指示该主接入网设备对候选辅接入网设备的添加情况。
添加情况可以是主接入网设备成功添加候选辅接入网设备，或者添加辅接入网设备失败，使得第一辅接入网设备可以根据该第二消息获知候选辅接入网设备的添加情况，进而有助于该辅接入网设备为该主接入网选择更加合适的候选辅接入网设备，更进一步提高切换成功率。
在一些可能的实现方式中，该第二消息包括该主接入网设备成功添加的候选辅接入网设备的确认信息，和/或该主接入网设备添加失败的候选辅接入网设备的信息。
通过肯定应答信息(acknowledgement，ACK)或否定应答信息(negative acknowledgement，NACK)更加简洁的获知添加情况，节省了信令传输开销，以及节省了第一辅接入网设备的识别开销。
第二方面，提供了一种通信方法，该方法可以应用于包括主接入网设备和第一辅接入网设备的通信系统中，该方法包括：确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；向该主接入网设备发送该切换触发条件信息。
第一辅接入网设备可以确定至少一个候选辅接入网设备中的每个候选辅接入网设备下的一个或多个小区的切换触发条件信息，并发送给主接入网设备，进而由主接入网设备向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了SN变更的速度，和提高了SN变更的灵活性。
在一些可能的实现方式中，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
通过上述方式限制切换小区的选择都可以有助于更进一步提高切换后的通信质量或者提高小区切换的灵活性。
在一些可能的实现方式中，该方法还包括：向该主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息。
第一辅接入网设备向主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息，使得主接入网设备将该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息携带在第一消息中发送给终端设备，使得终端设备根据测量质量信息选择第二小区，从而更进一步提高切换后的小区的通信质量。
在一些可能的实现方式中，该方法还包括：从该主接入网设备接收第二消息，该第二消息用于指示该主接入网设备对该至少一个候选辅接入网设备的添加情况。
添加情况可以是主接入网设备成功添加候选辅接入网设备，或者添加辅接入网设备失败。第一辅接入网设备可以根据该第二消息获知候选辅接入网设备的添加情况，进而有助于该辅接入网设备为该主接入网选择更加合适的候选辅接入网设备，更进一步提高切换成功率。
在一些可能的实现方式中，该第二消息包括该至少一个候选辅接入网设备中的该主接入网设备成功添加的候选辅接入网设备的确认信息，和/或该至少一个候选辅接入网设备中的该主接入网设备添加失败的候选辅接入网设备的信息。
通过ACK或NACK更加简洁的获知添加情况，节省了信令传输开销，以及节省了第一辅接入网设备的识别开销。
第三方面，提供了一种通信方法，该方法可以应用于包括主接入网设备和第一辅接入网设备的通信系统中，该方法包括：从该主接入网设备接收第一消息，该第一消息包括至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；向该主接入网设备发送第一响应消息，该第一响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区，该第二小区满足该第二小区的切换触发条件信息指示的切换触发条件。
终端设备接收包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，并根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了SN变更的速度，和提高了SN变更的灵活性。
在一些可能的实现方式中，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了SN变更的速度，和提高了SN变更的灵活性。
在一些可能的实现方式中，该第一响应消息包括该第二小区的小区标识。
第四方面，提供了一种通信方法，该方法可以应用于包括第一主接入网设备MN和第一辅接入网设备SN的通信系统中，该方法包括：从该第一MN接收第一消息，该第一消息用于指示至少一个候选MN下的一个或多个小区的切换触发条件；向该至少一个候选MN中的第二MN发送第一响应消息，该第一响应消息用于指示该第二MN下的第二小区，其中，该第二MN下的第二小区满足该第二MN下的第二小区的切换触发条件。
终端设备从第一MN接收到该第一消息，并根据该切换触发条件，确定满足切换触发条件的第二MN。具体可以是第二MN下的第二小区满足该第二小区的切换触发条件。也就是说，本申请实施例终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率。
在一些可能的实现方式中，该第一消息还用于指示该至少一个候选MN中的每个MN对应的至少一个候选SN下的一个或多个小区，以及该至少一个候选SN下的一个或多个小区的切换触发条件，该第一响应消息还用于指示该至少一个候选SN中的第二SN下的第二小区，该第二SN下的第二小区满足该第二SN下的第二小区的切换触发条件。
由于终端设备进行MN的切换可能会引起SN的切换，本申请实施例中，第一消息还 可以用于指示能够与每个候选MN进行DC的至少一个候选SN，这样终端设备进行MN切换后，还可以根据选中的MN对应的至少一个候选SN的切换触发条件，从该选中的MN对应的该至少一个候选SN中选择第二SN，从而避免选择不能与第二MN进行DC的SN，提高了通信效率。
在一些可能的实现方式中，在向该第二MN发送该第一响应消息之前，该方法还包括：根据该第二MN对应的至少一个候选SN下的一个或多个小区的切换触发条件和该至少一个候选SN下的一个或多个小区的测量质量，确定该第二SN下的第二小区。
终端设备可以根据该至少一个候选SN下的一个或多个小区的测量质量来选择满足切换触发条件的第二小区，能够有助于终端设备选择一个通信质量较高的第二小区，从而有助于提高通信质量。
在一些可能的实现方式中，在向该第二MN发送该第一响应消息之前，该方法还包括：根据该至少一个候选MN下的一个或多个小区的切换触发条件和该至少一个候选MN下的一个或多个小区的测量质量，从该至少一个候选MN中确定该第二MN下的第二小区。
终端设备可以是检测该至少一个候选MN中的每个MN下的小区的测量质量。若第二MN下的第二小区的测量质量大于该第二小区的质量阈值，则将第二小区作为即将切换的小区。或者终端设备检测到当前服务小区的测量质量与第二MN下的第二小区的测量质量的差值大于或等于该第二小区的测量质量的差值，则将第二小区作为即将切换的小区，从而有助于提高了切换后的通信质量。
在一些可能的实现方式中，该第一消息还用于指示该切换触发条件的有效时间。
每个小区的切换触发条件可以有生效时间，超过该生效时间释放对应的切换触发条件，也可以是所有小区的切换触发条件共有一个生效时间，即超过该生效时间释放所有的切换触发条件，从而提高了小区切换的灵活性。
在一些可能的实现方式中，第一小区的切换触发条件包括触发终端设备切换到该第一小区的测量质量阈值或触发终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值，其中，该第一小区为该至少一个候选MN下的小区。
通过这两种方式进行切换小区的选择都可以有助于更进一步提高主接入网设备下的小区切换后的通信质量。
在一些可能的实现方式中，第一小区的切换触发条件包括触发终端设备切换到该第一小区的测量质量阈值或触发终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值，其中，该第一小区为该至少一个候选SN下的小区。
通过这两种方式进行切换小区的选择都可以有助于更进一步提高辅接入网设备下的小区切换后的通信质量。
第五方面，提供了一种通信方法，该方法可以应用于包括第一主接入网设备MN和第一辅接入网设备SN的通信系统中，该方法包括：获取至少一个候选MN下的一个或多个小区的切换触发条件；向终端设备发送第一消息，该第一消息用于指示该至少一个候选MN下的一个或多个小区的切换触发条件。
第一MN可以获取至少一个候选MN下的一个或多个小区的切换触发条件，并向终端 设备发送用于指示该至少一个候选MN下的一个或多个小区的切换触发条件的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率。
在一些可能的实现方式中，该第一消息还包括该至少一个候选MN中的每个MN对应的至少一个候选SN的标识，以及该至少一个候选SN的切换触发条件，该第一响应消息还包括该至少一个候选SN中的第二SN下的目标小区的小区标识，该第二SN下的目标小区的测量质量满足该第二SN下的目标小区的切换触发条件。
由于终端设备进行MN的切换可能会引起SN的切换，第一消息还可以用于指示能够与每个候选MN进行DC的至少一个候选SN，这样能够使得终端设备进行MN切换后，还可以根据选中的MN对应的至少一个候选SN的切换触发条件，从该选中的MN对应的该至少一个候选SN中选择第二SN，从而避免选择不能与第二MN进行DC的SN，提高了通信效率。
在一些可能的实现方式中，该方法还包括：从该至少一个候选MN中的第二MN接收第一信息，该第一信息用于指示该第二SN与该第一SN为同一个SN；向该第一SN发送第二信息，该第二信息用于指示该第一SN保存该终端设备的终端设备UE上下文信息。
第二MN与第一MN之间存在连接关系，第二MN可以向第一MN发送第一信息，通过该第一信息指示该第二SN与该第一SN为同一个SN。第一MN再向第一SN发送第二信息，第一SN接收到第一指示信息和第二指示信息后，第一SN可以不释放该第一SN保存的UE的上下文，避免了释放后再重新建立，从而节省了资源开销。
在一些可能的实现方式中，该第一消息还用于指示该切换触发条件的有效时间。
每个小区的切换触发条件可以有生效时间，超过该生效时间释放对应的切换触发条件，也可以是所有小区的切换触发条件共有一个生效时间，即超过该生效时间释放所有的切换触发条件，从而提高了小区切换的灵活性。
在一些可能的实现方式中，第一小区的切换触发条件包括触发终端设备切换到该第一小区的测量质量阈值或触发终端设备切换到该第一小区的测量质量偏差阈值，该第一小区为该至少一个候选MN下的小区。
通过这两种方式进行切换小区的选择都可以有助于更进一步提高主接入网设备下的小区切换后的通信质量。
在一些可能的实现方式中，第一小区的切换触发条件包括触发终端设备切换到该第一小区的测量质量阈值或触发终端设备切换到该第一小区的测量质量偏差阈值，该第一小区为该至少一个候选SN下的小区。
通过这两种方式进行切换小区的选择都可以有助于更进一步提高辅接入网设备下的小区切换后的通信质量。
第六方面，提供了一种通信方法，该方法可以应用于包括第一主接入网设备MN和第一辅接入网设备SN的通信系统中，该方法包括：接收第一响应消息，该第一响应消息用于指示第二MN下的第二小区，以及用于指示第二SN下的第二小区，该第二MN下的第二小区满足该第二MN下的第二小区的切换触发条件，该第二SN下的第二小区满足该第二SN下的第二小区的切换触发条件；发送第一信息，该第一信息用于指示该第二SN与该第一SN为同一个SN。
第一MN可以获取至少一个候选MN下的一个或多个小区的切换触发条件，并向终端设备发送用于指示该至少一个候选MN下的一个或多个小区的切换触发条件的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，并向第二主接入网设备发送第一响应消息，使得第二MN获知自己被选中，进而与该终端设备建立随机接入，从而提高了切换效率。
在一些可能的实现方式中，该发送第一信息包括：向该第一MN发送该第一信息。
若第二MN已经建立与第一SN的连接，则第二MN可以直接向第一SN发送用于指示该第二SN与该第一SN为同一个SN的指示信息，从而节省了信令开销。
在一些可能的实现方式中，该方法还包括：向该第一SN发送该第二信息，该第二信息还用于指示该第一SN保存该终端设备的终端设备UE上下文信息。
也就是说，第一SN接收到第一指示信息和第二指示信息后，第一SN可以不释放该第一SN保存的UE的上下文，避免了释放后再重新建立，从而节省了资源开销。
在一些可能的实现方式中，该第二小区的切换触发条件包括触发终端设备切换到该第二小区的测量质量阈值或触发终端设备切换到该第二小区的测量质量偏差阈值，该第二小区为该第二SN下的小区或该第二MN下的小区。
通过这两种方式进行切换小区的选择都可以有助于更进一步提高主接入网设备或辅接入网设备下的小区切换后的通信质量。
第七方面，提供了一种装置，该装置可以是主接入网设备，或是用于主接入网设备的芯片，比如可被设置于主接入网设备内的芯片。可以理解的是，该装置是接入网设备，只是在为某终端设备服务时，作为主接入网设备，为另一终端设备服务时，该接入网设备也可以作为辅接入网设备。该装置具有实现上述第一方面、第五方面或第六方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，该装置包括：接收模块和发送模块，可选地，该装置还包括处理模块，所述收发模块例如可以是收发器、接收器、发射器中的至少一种，该接收模块和发送模块可以包括射频电路或天线。该处理模块可以是处理器。可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第一方面、第五方面或第六方面，及各种可能的实现方式的通信方法。在本设计中，该装置可以为主接入网设备。
在另一种可能的设计中，当该装置为芯片时，该芯片包括：接收模块和发送模块，可选地，该装置还包括处理模块，接收模块和发送模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该终端设备内的芯片执行上述、第五方面或第六方面，以及任意可能的实现的通信方法。可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器， 特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述第一方面、第五方面或第六方面，以及任意可能的实现的的通信方法的程序执行的集成电路。
第八方面，提供了一种装置，该装置可以是辅接入网设备，或是用于辅接入网设备的芯片，比如可被设置于辅接入网设备内的芯片。可以理解的是，该装置是接入网设备，只是在为某终端设备服务时，作为辅接入网设备，为另一终端设备服务时，该接入网设备也可以作为主接入网设备。该装置具有实现上述第二方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，该装置包括：接收模块和发送模块。可选地，该装置还包括处理模块。所述接收模块和发送模块例如可以是收发器、接收器、发射器中的至少一种，该收发模块可以包括射频电路或天线。该处理模块可以是处理器。
可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第二方面，或其任意一项的方法。
在另一种可能的设计中，当该装置为芯片时，该芯片包括：接收模块和发送模块，可选地，该芯片还包括处理模块。接收模块和发送模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该辅接入网设备内的芯片执行上述第二方面，以及任意可能的实现的通信方法。
可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。
第九方面，提供了一种装置，该装置可以是终端设备，或是用于终端设备的芯片，比如可被设置于终端设备内的芯片。该装置具有实现上述第三方面或第四方面，及各种可能的实现方式的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，该装置包括：接收模块和发送模块。可选地，该装置还包括处理模块。所述接收模块和发送模块例如可以是收发器、接收器、发射器中的至少一种，该收发模块可以包括射频电路或天线。该处理模块可以是处理器。
可选地，所述装置还包括存储模块，该存储模块例如可以是存储器。当包括存储模块时，该存储模块用于存储指令。该处理模块与该存储模块连接，该处理模块可以执行该存储模块存储的指令或源自其他的指令，以使该装置执行上述第三方面或第四方面，或其任意一项的方法。
在另一种可能的设计中，当该装置为芯片时，该芯片包括：接收模块和发送模块，可 选地，该芯片还包括处理模块。接收模块和发送模块例如可以是该芯片上的输入/输出接口、管脚或电路等。处理模块例如可以是处理器。该处理模块可执行指令，以使该终端设备内的芯片执行上述第三方面或第四方面，以及任意可能的实现的通信方法。
可选地，该处理模块可以执行存储模块中的指令，该存储模块可以为芯片内的存储模块，如寄存器、缓存等。该存储模块还可以是位于通信设备内，但位于芯片外部，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述各方面通信方法的程序执行的集成电路。
第十方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第一方面、第五方面或第六方面，及其任意可能的实现方式中的方法的指令。
第十一方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第二方面，及其任意可能的实现方式中的方法的指令。
第十二方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第三方面或第四方面，及其任意可能的实现方式中的方法的指令。
第十三方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第一方面、第五方面或第六方面，或其任意可能的实现方式中的方法。
第十四方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第二方面，或其任意可能的实现方式中的方法。
第十五方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第三方面或第四方面，或其任意可能的实现方式中的方法。
第十六方面，提供了一种通信系统，该通信系统包括具有实现上述第一方面的各方法及各种可能设计的功能的装置、上述具有实现上述第二方面的各方法及各种可能设计的功能的装置和上述具有实现上述第三方面的各方法及各种可能设计的功能的装置中的一项或多项。
第十七方面，提供了一种通信系统，该通信系统包括具有实现上述第四方面的各方法及各种可能设计的功能的装置、上述具有实现上述第五方面的各方法及各种可能设计的功能的装置和上述具有实现上述第六方面的各方法及各种可能设计的功能的装置中的一项或多项。
基于上述技术方案，主接入网设备从第一辅接入网设备中接收至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，并向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了SN变更的速度，和提高了SN变更的灵活性。
附图说明
图1是本申请一个实施例的通信架构的示意图；
图2是本申请另一个实施例的通信架构的示意图；
图3是本申请另一个实施例的通信架构的示意图；
图4是传统方案中辅基站内的小区切换的方法的示意性流程图；
图5是本申请实施例的通信方法的示意性流程图；
图6是传统方案中主接入网设备下的小区切换的方法的示意性流程图；
图7是本申请实施例的通信方法的示意性流程图；
图8是本申请一个具体实施例的通信方法的示意性流程图；
图9是本申请一个具体实施例的通信方法的示意性流程图；
图10是本申请实施例的通信装置的示意性框图；
图11是本申请一个实施例的通信装置的示意性结构图；
图12是本申请另一个实施例的通信装置的示意性框图；
图13是本申请一个实施例的通信装置的示意性结构图；
图14是本申请另一个实施例的通信装置的示意性框图；
图15是本申请一个实施例的通信装置的示意性结构图；
图16是本申请另一个实施例的通信装置的示意性框图；
图17是本申请一个实施例的通信装置的示意性结构图；
图18是本申请另一个实施例的通信装置的示意性结构图；
图19是本申请另一个实施例的通信装置的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端设备、用户单元、用户站、移动站、移动台、远方站、远程终端设备、移动设备、用户终端设备、终端设备、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的接入网设备可以是用于与终端设备通信的设备，该接入网设备可以是LTE系统中的演进型基站(evoled NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该接入网设备可以为 中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的接入网设备或者未来演进的PLMN网络中的接入网设备，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)等，本申请实施例并不限定。
应理解，本申请实施例的主接入网设备或辅接入网设备都可以是上述任意一种接入网设备。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、介质接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，接入网设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的接入网设备，也可以将CU划分为核心网(core network，CN)中的接入网设备，本申请对此不做限定。
在本申请实施例中，终端设备或接入网设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或接入网设备，或者，是终端设备或接入网设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
下面将本申请涉及到的相关术语进行介绍：
1、载波聚合(carrier aggregation，CA)：
终端设备可以同时使用多个小区进行上下行通信，从而支持高速数据传输。其中，该 多个小区中的一个小区为主小区(primary cell，PCell)，其他小区为辅小区(secondary cell，SCell)。CA中允许物理下行控制信道(physical downlink control channel，PDCCH)和物理下行共享信道(physical downlink shared channel，PDSCH)在同一个或者不同的载波分量(carrier component，CC)中，即允许跨载波的调度。其中，CC，带宽部分(bandwidth part，BWP)，CC/BWP，CC和/或BWP通常可等效替换，因为它们都描述的一段频域资源。CC也可以和小区(cell)等效替换。其中，BWP表示连续的一段频域资源，例如，BWP可以理解为一段连续的频带，该频带包含至少一个连续的子带，每个带宽部分可以对应一组系统参数(numerology)。不同带宽部分可以对应不同的系统参数。
2、主小区(primary cell，PCell)：
PCell是CA的终端设备驻留的小区，CA的终端设备对应物理上行控制信道(physical uplink control channel，PUCCH)信道。
3、辅小区(secondary cell，SCell)：
SCell是指通过无线资源控制(radio resource control，RRC)连接信令配置给CA终端设备的小区，工作在SCC(辅载波)上，可以为CA终端设备提供更多的无线资源。SCell可以只有下行，也可以上下行同时存在。
4、辅助主小区(primary secondary Cell，PSCell)：
PSCell是主基站通过RRC连接信令配置给双连接(dual connectivity，DC)UE的在辅基站上的一个特殊辅小区。
5、DC：
支持两个基站同时为一个终端设备提供数据传输服务，其中PCell所在的基站称为主基站(master gNB，MgNB)，另外一个PSCell所在的基站称为辅基站(secondary gNB，SgNB)。其中，主基站为控制面锚点，即终端设备和主基站建立RRC连接，且主基站与核心网网元之间建立控制面连接，主基站与终端设备间传输RRC消息，后续增强技术中，辅基站与终端设备间也可以进行部分RRC消息的发送(例如，测量配置信息，测量报告等)。
6、主小区组(master cell group，MCG)：
在DC中，主基站中的多个服务小区组成MCG。MCG具体可以包括一个PCell，以及一个或多个SCell。
7、辅小区组(secondary cell group，SCG)：
辅基站中的多个服务小区组成SCG。MCG具体可以包括一个PSCell，以及一个或多个SCell。
8、条件切换(conditional handover，CHO)机制：
原基站在源链路质量较好时向终端设备发送CHO的配置信息，该条件切片的配置信息中可以包括切换触发条件、一个或多个候选小区的信息。具体地，该一个或多个候选小区的信息可以包括候选小区的PCI以及候选小区对应的频率信息。其中，候选小区对应的频率信息可以包括以下一项或多项：同步信号块SSB的绝对频率(absolute frequency)、参考资源模块(common RB0)的绝对频率位置(如absoluteFrequencyPointA)、频率带宽列表(如frequencyBandList)、子载波间隔(subcarrier spacing，SCS)特定的载波列表(如scs-SpecificCarrierList)。UE在接收到该条件切换的配置信息后，根据该配置信息判断各 候选小区是否满足切换触发条件，将满足切换触发条件的某候选小区作为目标小区；UE确定出目标小区后，向目标小区发起随机接入过程，随机接入完成后，UE给目标小区所属的基站(即目标基站)发送RRC消息(如RRC重配置完成消息)，通知目标基站条件切换完成。
图1是本申请一个实施例的通信架构的示意图。该通信架构可以称为(E-UTRA NR DC，EN-DC)，也可以称为Option3系列(Option3 series)。该通信架构中LTE基站作为MN)，NR基站作为辅站(secondary node，SN)进行DC。此外，MN和SN都连接EPC，且能够为UE和EPC之间的数据提供空口传输资源。其中，MN和SN连接EPC可以是MN和SN分别连接EPC。或者MN和SN连接EPC也可以是MN连接EPC，SN通过MN连接EPC。其中，MN也可以称为“锚点(anchor)”。
需要说明的是，本申请中的LTE基站可以是eNB或ng-eNB，NR基站可以是gNB。
图2是本申请另一个实施例的通信架构的示意图。该通信架构可以称为(NR E-UTRA DC，NE-DC)，也可以称为Option 4系列(option4series)。NR基站作为主站，LTE基站作为辅站。此外，主站和辅站都连接5GC，且能够为UE和5GC之间的数据提供空口传输资源。其中，MN和SN连接5GC可以是MN和SN分别连接5GC。或者MN和SN连接5GC也可以是MN连接5GC，SN通过MN连接5GC。
图3是本申请另一个实施例的通信架构的示意图。该通信架构可以称为(Next Generation E-UTRA NR DC，NG EN-DC)，也可以称为Option 7系列(Option7 series)。该通信架构中LTE基站为主站，NR基站为辅站进行DC。其中，MN和SN都连接5GC，为UE和5GC之间的数据提供空口传输资源。其中，MN和SN连接5GC可以是MN和SN分别连接5GC。或者MN和SN连接5GC也可以是MN连接5GC，SN通过MN连接5GC。
还需要说明的是，本申请还可以应用于由NR基站和NR基站进行DC的通信系统中。
图4示出了传统方案中辅基站内的小区切换的方法的示意性流程图。
401，源SN(S-SN)向MN发送SN切换请求消息。其中该切换请求消息中包括候选目标SN的标识和可能的SCG配置，以及与该目标SN相关的测量结果。
402，MN向目标SN(T-SN)发送SN添加请求消息，该SN添加请求消息用于为终端设备请求资源分配。该SN添加请求消息包括步骤401中的与该目标SN相关的测量结果。
403，目标SN向MN反馈SN添加请求确认消息，该SN添加请求确认消息用于指示为终端设备分配的资源。具体地，该SN添加请求确认消息包括用于指示完整的或增量的RRC配置(也可以称为SN RRC configuration)。
404，MN向终端设备发送RRC重配置消息，该RRC重配置消息包括上述RRC配置。
405，终端设备应用该RRC重配置消息中的新配置，并向MN发送RRC重配置完成消息。
需要说明的是，若终端设备不能遵守该RRC重配置消息中的部分或全部配置，则终端设备的重配置失败。例如，终端设备可以不执行步骤405，或者终端设备通过步骤405中的RRC重配置完成消息指示重配置失败。
406，MN确定目标SN的资源分配成功，则向MN发送SN切换确认消息。
407，确定终端设备完成RRC重配置消息的新配置，向T-SN发送SN重配完成消息。
408，若RRC连接重配置成功，则终端设备向目标SN发起随机接入，并完成目标SN的同步。
在双连接(dual connectivity，DC)场景中，终端设备能够同时与两个接入网设备进行通信，如何能够进行主/辅接入网设备下的小区的切换，或主/辅接入网设备的灵活变更，并提高小区切换或主/辅接入网设备的变更的可靠性(reliability)和鲁棒性(robustness)，是一个亟待解决的问题。本申请通过引入条件主/辅接入网设备变更(conditional MN/SN change或CHO MN/SN change)或条件切换来提高切换的可靠性和鲁棒性，具体来说，主接入网设备或辅接入网设备决定或协商决定一个或多个候选主/辅接入网设备条件变更的切换触发条件，之后发送给终端设备，终端设备判断是否满足切换触发条件，并向满足触发条件的候选小区发起连接，这样通过提前下发条件触发的条件避免了源接入网设备由于通信质量逐渐下降可能造成的切换命令下发失败的情形，提高了主/辅接入网设备变更的可靠性和鲁棒性。
图5是本申请实施例的通信方法的示意性流程图。
需要说明的是，本申请可以应用于包括主接入网设备和第一辅接入网设备的通信系统中，即终端设备可以与该主接入网设备以及该第一辅接入网设备形成双连接。
还需要说明的是，本申请实施例的执行主体为主接入网设备的情况下，具体可以是主接入网设备内的芯片。相应地，执行主体为辅接入网设备的情况下，具体可以是辅接入网设备内的芯片。执行主体为终端设备的情况下，具体可以是终端设备内的芯片。下述实施例以主接入网设备、辅接入网设备或终端设备为例进行说明，但本申请并不限定于此。
501，该第一辅接入网设备确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
具体地，第一辅接入网设备可以确定至少一个候选辅接入网设备中的每个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
可以理解地，第一接入网设备根据测量结果确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，其中切换触发条件既可以是每小区配置的，也可以是每候选辅接入网设备配置的(即同一个接入网设备下的小区可以用同样的切换触发条件)。
应理解，一个候选辅接入网设备下的一个或多个小区可以是该候选辅接入网设备下的全部小区或部分小区，本申请对此不进行限定。
可选地，该至少一个候选接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件，该第一小区的切换触发条件可以是触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差为该终端设备与服务小区之间的测量质量和该终端设备与该第一小区之间的测量质量的差值。
具体地，第一小区的切换触发条件具体包括触发终端设备从当前的服务小区切换到该第一小区的测量质量阈值。例如，终端设备与该第一小区的测量质量大于或等于该测量质量阈值的情况下，终端设备可以从当前的服务小区切换到该第一小区。
或者第一小区的切换触发条件具体包括触发终端设备从当前的服务小区切换到该第一小区的质量偏差阈值。其中，该质量偏差包括该终端设备与当前的服务小区之间的测量 质量，和该终端设备与该第一小区之间的测量质量的差值；或者该质量偏差为该终端设备与该第一小区之间的测量质量，和该终端设备与当前服务小区之间的测量质量的差值。例如，终端设备与当前的服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值大于或等于该质量偏差阈值的情况下，终端设备可以从当前的服务小区切换到该第一小区。
应理解，该第一小区为该一个或多个小区中的一个，为方便描述，本申请实施例中以第一小区为例进行说明。
可选地，该切换触发条件信息还可以用于指示切换触发条件信息的有效时间或该第一小区的优先级。
具体地，该第一小区的切换触发条件信息的有效时间即终端设备在超出该有效时间时不根据该切换触发条件信息进行小区的切换。该有效时间可以通过定时器控制，例如，终端设备在接收到切换触发条件信息时，启动定时器，在定时器期满时，释放该触发条件信息的配置。其中，在终端设备检测到满足某个小区的切换触发条件时，定时器可以停止计时。
终端设备可以根据不同小区的优先级判断优先进行哪个小区的切换，若终端设备判断当前不满足第一优先级的小区的切换触发条件，则终端设备继续判断是否满足第二优先级的小区的切换条件。
需要说明的是，该触发条件也可以用于指示第一小区的切换触发条件、该第一小区的切换触发条件信息的有效时间或该第一小区的优先级中的两项或三项，本申请对此不进行限定。
502，主接入网设备获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
具体地，主接入网设备在获取到至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息后，可以发起添加该至少一个候选辅接入网设备的流程，该流程用于请求该至少一个候选接入网设备为终端设备分配资源，以及使得添加到的候选辅接入网设备可以与该主接入网设备形成DC与终端设备进行通信。
需要说明的是，该切换触发条件信息可以是携带携带在X2/Xn接口的消息(例如，CHO SN切换请求(change required)，或者新的X2/Xn接口消息)中。该X2/Xn接口的消息还可以携带该至少一个候选辅接入网设备的标识。可选地，该X2/Xn接口的消息还可以携带该至少一个候选辅接入网设备下的一个或多个小区的小区标识，和/或SCG配置，该SCG配置可以用于支持辅小区组的增量配置。
还需要说明的是，主接入网设备添加候选辅接入网设备的流程可以是主接入网设备发起的，例如，主接入网设备向想要添加的候选辅接入网设备发送触发请求，候选辅接入网设备也可以反馈该触发请求的响应消息。
在一个实施例中，步骤502具体可以是该主接入网设备从第一辅接入网设备接收该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。相应地，第一辅接入网设备向该主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
具体地，第一辅接入网设备可以检测得到至少一个候选辅接入网设备下的一个或多个 小区的切换触发条件信息，并向该主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
在另一个实施例中，步骤502具体可以是，该主接入网设备可以设置至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，例如，MN根据从SN获取的候选的SN列表和测量结果信息(测量结果信息也是可选的)设置切换触发条件信息。
应理解，在该实施例中步骤501可以不执行。
在又一个实施例中，步骤502具体可以是该主接入网设备可以先从该第一辅接入网设备接收多个候选辅接入网设备下的一个或多个小区的切换触发条件信息，然后进行修改或调整得到步骤503中第一消息中携带的至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
应理解，步骤502中的切换触发条件信息所属的小区的数目可以与步骤503中第一消息中包括的切换触发条件信息所属的小区的数目不同。例如，主接入网设备添加该小区所属的辅接入网设备添加失败的情况下，则不在该第一消息中携带该接入网设备下的小区的切换触发条件信息。
可选地，该主接入网设备还可以向该第一辅接入网设备发送第二消息，该第二消息用于指示该主接入网设备对候选辅接入网设备的添加情况。
具体地，添加情况可以是主接入网设备成功添加候选辅接入网设备，或者添加辅接入网设备失败。主接入网设备可以通过第二消息仅指示添加成功候选辅接入网设备，即第一辅接入网设备可以直接获知主接入网设备添加成功的候选辅接入网设备。或者主接入网设备通过第二消息仅指示连接建立失败的候选辅接入网设备，即间接获知主接入网设备添加成功的候选辅接入网设备。或者主接入网设备通过第二消息指示添加成功的候选辅接入网设备和添加失败的候选辅接入网设备。
可选地，该第二消息指示添加成功的候选辅接入网设备可以通过添加成功的候选辅接入网设备的确认信息实现，即该第二消息中包括添加成功的候选辅接入网设备的确认信息，例如，该确认信息可以为确认字符(acknowledgement character，ACK)。该第二消息指示添加失败的候选辅接入网设备可以通过添加失败的候选辅接入网设备的信息来实现，即该第二消息中包括添加失败的候选辅接入网设备的信息，例如，通过否定应答(negative acknowledgement，NACK)表示对应的候选辅接入网设备添加失败。
可选地，该第二消息还可以携带添加失败的候选辅接入网设备添加失败的原因。
503，该主接入网设备向终端设备发送第一消息，该第一消息包括该切换触发条件信息。相应地，终端设备从该主接入网设备接收该第一消息。
具体地，主接入网设备向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率。
应理解，该第一消息可以是RRC reconfiguration消息，也可以是一个全新的消息，本申请对此不进行限定。
可选地，该主接入网设备还可以获取该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息，或该至少一个候选辅接入网设备下的一个或多个小区的配置信息，并携带在该第一消息中发送给终端设备。
具体地，该一个或多个小区中的第一小区的配置信息可以包括该第一小区所属的候选辅接入网设备为终端设备分配的时频资源、该第一小区的测量质量或者该第一小区所属的候选辅接入网设备的地址中的至少一项。该候选辅接入网设备的地址可以用于主接入网设备通过该候选辅接入设备进行数据转发。
可选地，该主接入网设备可以从第一候选辅接入网设备接收该第一候选辅接入网设备下的一个或多个小区的测量质量信息，也可以是预先存储到主接入网设备的存储模块中，从存储模块中获取。
需要说明的是，该第一候选辅接入网设备可以是该至少一个候选辅接入网设备中的任意一个候选辅接入网设备，也就是说，主接入网设备可以从该至少一个候选辅接入网设备中的每个候选辅接入网设备中接收到对应的候选辅接入网设备下的一个或多个小区的测量质量信息。
可选地，该主接入网设备获取该至少一个候选辅接入网设备下的一个或多个小区的配置信息可以是从每个候选辅接入网设备接收，也可以是预先存储到该主接入网设备的存储模块中，从存储模块中获取。
可选地，主接入网设备在从第一候选辅接入网设备接收配置信息之前，可以向对应的候选辅接入网设备发送第一请求。也就是说，第一候选辅接入网设备在接收到该第一请求后，向该主接入网设备发送该配置信息。
需要说明的是，主接入网设备可以向该至少一个候选辅接入网设备中的每个候选辅接入网设备发送请求，以请求各个候选辅接入网设备响应配置信息。
还需要说明的是，该第一请求可以与前述触发请求携带在同一个消息中，相应地，该配置信息也可以携带在前述触发请求的响应消息中。
还应理解，该配置信息可以携带在SN无线资源控制重配(RRC reconfiguration)消息中，也可以是携带在一个全新的消息中，本申请对此不进行限定。
504，终端设备向该主接入网设备发送第一响应消息，该第一响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区，该第二小区满足该第二小区的切换触发条件信息。相应地，主接入网设备从终端设备接收该第一响应消息。
具体地，终端设备根据每个小区的切换触发条件信息，确定第二小区满足该第二小区的切换触发条件信息指示的切换触发条件，也就是说，终端设备即将切换到第二小区。终端设备向主接入网设备发送第一响应消息，通过该第一响应消息指示该第二小区。此外，终端设备在确定第二小区之后，可以向该第二小区所属的第二辅接入网设备发起随机接入，并完成与该第二辅接入网设备的同步。
需要说明的是，本申请实施例中，上述步骤504也可以不执行，即终端设备可以不通知主接入网设备最终选择的辅接入网设备。
应理解，该第一响应消息可以是RRC reconfiguration完成(complete)消息。
可选地，该第一响应消息可以包括该第二小区的小区标识。
可选地，该主接入网设备还可以告知该第一辅接入网设备或该第二辅接入网设备终端设备从该至少一个候选辅接入网设备中选中的第二辅接入网设备下的第二小区。
具体地，例如，主接入网设备向第一辅接入网设备发送第二响应消息，该第二响应消息用于指示该第二小区。主接入网设备向第二辅接入网设备发送第三响应消息，该第三响 应消息用于指示该第二消息。该第二响应消息可以包括第二辅接入网设备的地址，即主接入网设备可以向第一辅接入网设备发送第二辅接入网设备的地址，第一辅接入网设备可以将数据发送给第二辅接入网设备，由第二辅接入网设备将数据转发给终端设备。
因此，本申请实施例中，主接入网设备从第一辅接入网设备中接收至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，并向终端设备发送包括该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息的第一消息，使得该终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率，以及提升了辅接入网设备下的小区变更的速度，和提高了辅接入网设备下的小区变更的灵活性。
图6示出了传统方案中主接入网设备下的小区切换的方法的示意性流程图。
601，在双连接场景中，源MN确定目标MN，并向目标MN发送切换请求。
602，目标MN在接收到切换请求之后，向目标SN发送SN添加请求(SN addition request)。
603，目标SN向目标MN反馈响应消息(SN addition request acknowledge)。
604，目标MN向源MN发送切换请求响应消息。
605，源MN向源SN发送SN释放请求(SN release request)。
606，SN反馈SN释放请求的响应消息(SN release request acknowledge)。
607，源MN向终端设备发送RRC连接重配置(connection reconfiguration)。
608，终端设备向目标MN发起随机接入(random access procedure)。
609，终端设备向目标MN发送RRC连接重配置完成消息(RRC connection reconfiguration complete)。
610，终端设备向目标SN发起随机接入。
在双连接(dual connectivity，DC)场景中，终端设备能够同时与两个接入网设备进行通信，如何能够进行主接入网设备下的小区的切换，以提高小区切换的成功率亟待解决。
图7示出了本申请实施例的通信方法的示意性流程图。
需要说明的是，本申请可以应用于包括第一主接入网设备和第一辅接入网设备的通信系统中，即终端设备可以与该第一主接入网设备以及该第一辅接入网设备形成双连接。
还需要说明的是，本申请实施例的执行主体为主接入网设备的情况下，具体可以是主接入网设备内的芯片。相应地，执行主体为辅接入网设备的情况下，具体可以是辅接入网设备内的芯片。执行主体为终端设备的情况下，具体可以是终端设备内的芯片。下述实施例以主接入网设备、辅接入网设备或终端设备为例进行说明，但本申请并不限定于此。
应理解，在不作特别说明的情况下，本申请实施例中与前述实施例中的相同术语表示的含义相同，为避免重复，在此不进行赘述。
701，第一MN获取至少一个候选MN下的一个或多个小区的切换触发条件。
具体地，第一MN可以从各个候选MN接收每个候选MN下的一个或多个小区的切换触发条件，也可以是根据存储的各个候选MN的信息生成该至少一个候选MN下的一个或多个小区的切换触发条件，例如，第一MN可以根据测量报告选择该至少一个候选MN。
可选地，第一MN从各个候选MN接收每个候选MN下的一个或多个小区的切换触发条件可以是各个候选MN主动发送一个或多个小区的切换触发条件，也可以是第一MN 向某一个候选MN(例如，第一候选MN)发送切换触发条件请求后，接收到该第一候选MN反馈的切换触发条件。
需要说明的是，第一候选MN在接收到该切换触发条件请求后，可以添加至少一个候选辅接入网设备，即添加能够与该第一候选MN建立DC的辅接入网设备。例如，向辅接入网设备发送SN添加请求(addition request)，并在接收到该辅接入网设备反馈的添加确认信息(addition request ack)后，确定成功添加该辅接入网设备。其中，该至少一个候选MN中的每个MN添加的候选辅接入网设备可以是由第一MN确定的，也可以是每个候选MN自己决定的。
应理解，该切换触发条件请求可以是CHO请求(request)消息，或者新的X2/Xn接口消息。该切换触发条件可以携带在该切换请求确认信息(CHO request acknowledge)中。其中，该CHO request消息还可以携带第一SN的端口标识(SN UE X2AP ID或SN UE XnAP ID)、第一SN的标识、第一SN的UE上下文信息。若某一个候选MN(例如，第一候选MN)添加的候选辅接入网设备由第一MN确定的情况下，该CHO请求还可以携带该第一候选MN即将添加的候选辅接入网设备的标识。
应理解，该至少一个候选MN可以分别添加各自的候选辅接入网设备。
还应理解，该至少一个候选MN分别添加的候选辅接入网设备可以包括该第一辅接入网设备，也可以不包括该第一辅接入网设备，本申请对此不进行限定。
可选地，第一小区的切换触发条件包括触发终端设备切换到所述第一小区的测量质量阈值或触发终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值；或者该质量偏差包括该终端设备与该第一小区之间的测量质量，和该终端设备与当前服务小区之间的测量质量的差值。其中，所述第一小区为MN下的小区或SN下的小区。
具体地，本申请实施例的切换触发条件是针对小区的，下述描述以第一小区为例进行说明，但本申请并不限于此。例如，该第一小区为该至少一个候选MN下的某一个小区。
第一小区的切换触发条件具体为触发终端设备从当前的服务小区切换到该第一小区的测量质量阈值。例如，终端设备与该第一小区的测量质量大于或等于该测量质量阈值的情况下，终端设备可以从当前的服务小区切换到该第一小区。
或者第一小区的切换触发条件具体为触发终端设备从当前的服务小区切换到该第一小区的质量偏差阈值。其中，该质量偏差为该终端设备与当前的服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。例如，终端设备与当前的服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值大于或等于该质量偏差阈值的情况下，终端设备可以从当前的服务小区切换到该第一小区。
702，第一MN向终端设备发送第一消息，该第一消息用于指示该至少一个候选MN下的一个或多个小区的切换触发条件。相应地，终端设备从第一MN接收该第一消息。
具体地，终端设备从第一MN接收到该第一消息，并根据该切换触发条件，确定满足切换触发条件的第二MN。具体可以是第二MN下的第二小区满足该第二小区的切换触发条件。也就是说，本申请实施例使得终端设备能够根据切换触发条件信息主动进行辅接入网设备下的小区的切换，从而提高了小区切换的成功率。
需要说明的是，该第一消息可以直接包括该至少一个候选MN下的一个或多个小区的 切换触发条件，也可以通过其他信息间接的指示该至少一个候选MN下的一个或多个小区的切换触发条件。
还需要说明的是，终端设备在步骤702之后，可以与第二MN以及第二SN发起随机接入。
应理解，该第一消息可以是RRC reconfiguration消息，还可以是一个全新消息，本申请对此不进行限定。
可选地，终端设备确定第二MN具体可以是根据该至少一个候选MN下的一个或多个小区的切换触发条件和该至少一个候选MN下的一个或多个小区的测量质量，从该至少一个候选MN中确定该第二MN下的第二小区。
具体地，终端设备可以是检测该至少一个候选MN中的每个MN下的小区的测量质量。若第二MN下的第二小区的测量质量大于该第二小区的质量阈值，则将第二小区作为即将切换的小区。或者终端设备检测到当前服务小区的测量质量与第二MN下的第二小区的测量质量的差值大于或等于该第二小区的测量质量的差值，则将第二小区作为即将切换的小区。
可选地，该第一消息还用于指示该至少一个候选MN中的每个MN对应的至少一个候选SN下的一个或多个小区，以及该至少一个候选SN下的一个或多个小区的切换触发条件。
具体地，由于终端设备进行MN的切换可能会引起SN的切换，本申请实施例中，第一消息还可以用于指示能够与每个候选MN进行DC的至少一个候选SN，这样能够使得终端设备进行MN切换后，还可以根据选中的MN对应的至少一个候选SN的切换触发条件，从该选中的MN对应的该至少一个候选SN中选择第二SN，从而避免选择不能与第二MN进行DC的SN，提高了通信效率。
应理解，该至少一个候选SN下的一个或多个小区中的任意一个小区的切换触发条件的内容可以如上述第一小区的切换触发条件的具体内容，为避免重复，在此不进行赘述。
可选地，终端设备确定该第二SN具体可以是终端设备根据该第二MN对应的至少一个候选SN下的一个或多个小区的切换触发条件和该至少一个候选SN下的一个或多个小区的测量质量，从该至少一个候选MN中确定该第二SN下的第二小区。
需要说明的是，该第二SN可以与第一SN为同一个SN，也可以是不同的SN。也就是说，该第二MN对应的至少一个候选SN中可以包括第一SN，且终端设备又选中该一SN为目标SN。
可选地，该第一消息还可以用于指示切换触发条件的有效时间。
具体地，每个小区的切换触发条件可以有生效时间，超过该生效时间释放对应的切换触发条件，也可以是所有小区的切换触发条件共有一个生效时间，即超过该生效时间释放所有的切换触发条件。
703，终端设备向第二MN发送第一响应消息。
具体地，终端设备可以向第二MN发送第一响应消息，该第一响应消息用于指示该第二MN下的第二小区。
应理解，该第一响应消息可以是RRC connection reconfiguration complete消息。
可选地，该第一响应消息包括该第二MN下的第二小区的小区标识。
可选地，该第一响应消息还可以用于指示第二SN下的第二小区。具体地，该第一响应消息包括该第二SN下的第二小区的小区标识。
704，第二MN向第一SN发送第一信息，该第一信息用于指示该第二SN与该第一SN为同一个SN。
具体地，若第二MN已经建立与第一SN的连接，则第二MN可以直接向第一SN发送用于指示该第二SN与该第一SN为同一个SN的指示信息。例如，第二MN在添加第一SN之后，就建立了与第一SN的连接。
需要说明的是，该第一信息可以携带在SN reconfiguration complete消息中，该SN reconfiguration complete消息用于指示终端设备完成接入到该第二MN。
705，第二MN向第二SN发送第二信息，该第二信息用于指示该第一SN保存终端设备的上下文信息。
具体地，第二MN也可以直接向第二SN发送用于指示该第一SN保存终端设备的上下文信息的第二指示信息。也就是说，第一SN接收到第一指示信息和第二指示信息后，第一SN可以不释放该第一SN保存的UE的上下文，避免了释放后再重新建立，从而节省了资源开销。
706，第二MN可以向第一MN发送第一信息，该第一信息用于指示该第二SN与该第一SN为同一个SN。
需要说明的是，该第一信息可以携带在释放消息中，该释放消息用于指示第一MN释放与终端设备的连接，以及释放与第一SN的连接。
707，第一MN接收到该第二MN发送的第一信息，则向第一SN发送第二信息，该第二信息用于指示第一SN保存终端设备的上下文信息。
具体地，第二MN与第一MN之间存在连接关系，第二MN可以向第一MN发送第一信息，通过该第一信息指示该第二SN与该第一SN为同一个SN。第一MN再向第一SN发送第二信息，第一SN接收到第一指示信息和第二指示信息后，第一SN可以不释放该第一SN保存的UE的上下文，避免了释放后再重新建立，从而节省了资源开销。
需要说明的是，本申请实施例中的步骤704、705，与步骤706、707为并列方案，也就是说，步骤703之后只执行步骤705和706，或者步骤703之后只执行步骤706和707。
还需要说明的是，本申请实施例中若只涉及MN的切换，则可以只执行步骤701-703。
可选地，若第二SN与第一SN为不同的SN，则本申请可以不执行步骤704-707。第二MN向第二SN发送
需要说明的是，若第二SN与第一SN为不同的SN，则该第一信息可以携带在释放消息中，该释放消息用于指示第一MN释放与终端设备的连接，以及释放与第一SN的连接。此外，该第一MN还可以将该释放消息发送给第一SN，以使得第一SN释放与终端设备的连接，以及释放与第一MN的连接。具体地，第一SN根据该释放消息释放与终端设备上下文相关的控制面资源。
图8示出了本申请一个具体实施例的通信方法的示意性流程图。
需要说明的是，图8所示的实施例中术语与图5所示的实施例的术语相同，为避免重复，在此不进行赘述。
801，第一SN确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件 信息。
具体地，本申请实施例中的至少一个候选辅接入网设备可以以候选SN1和候选SN2为例进行说明。
802，第一SN向MN发送该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息。
803，MN根据该至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息，向该至少一个候选辅接入网设备发送第一条件SN添加请求(conditional SN addition request)。具体地，MN向候选SN1发送第一条件SN添加请求，该第一条件SN添加请求用于请求为MN添加该候选SN1。
应理解，该第一条件SN添加请求对应于图5所示的实施例中的“第一请求”。
804，候选SN1向MN反馈第一条件SN添加请求的响应消息，该第响应消息携带第一配置信息。
805，MN向候选SN2发送第二条件SN添加请求，该第二条件SN添加请求用于请求为MN添加该候选SN2。
应理解，该第二条件SN添加请求对应于图5所示的实施例中的“第一请求”。
806，候选SN2向MN反馈第二条件SN添加请求的响应消息，该响应消息携带第二配置信息
需要说明的是，本申请对步骤803和步骤804的先后顺序不进行限定。
807，MN向终端设备发送第一消息，该第一消息包括该切换触发条件信息。
808，终端设备向该MN发送第一响应消息，该第一响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区。
809，MN向第一SN发送该第二响应消息，该第二响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区。
应理解，该第二响应消息可以是SN切换确认(change confirm)消息。
810，MN向候选SN1发送该第三响应消息，该第三响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区。
应理解，该第三响应消息可以是SN重配置完成(reconfiguration complete)消息。
应理解，该候选SN1对应于图5所示的实施例中的第二SN。
还应理解，本申请对步骤809和步骤810的先后顺序不进行限定。
811，MN向候选SN1发起随机接入。
需要说明的是，步骤811可以与步骤809或步骤810的先后顺序也不进行限定。
图9示出了本申请一个具体实施例的通信方法的示意性流程图。
需要说明的是，图9所示的实施例中术语与图7所示的实施例的术语相同，为避免重复，在此不进行赘述。
901，第一MN向至少一个候选MN发送切换触发条件请求。
具体地，本申请实施例以至少一个候选MN为候选MN1和候选MN2为例进行说明。即向候选MN1发送第一触发条件请求。
902，候选MN1向候选SN1和第一SN发送SN添加请求。
903，候选MN1接收候选SN1发送的添加确认信息。也就是说，终端设备能够同时 与该候选MN1和候选SN1建立DC。
904，候选MN1向第一SN发送SN添加请求。
905，候选MN1接收第一SN发送的添加确认信息。也就是说，终端设备能够同时与该候选MN1和第一SN建立DC。
906，候选MN1向第一MN发送第一切换触发条件。
907，第一MN向候选MN2发送第二切换触发条件请求。
908，候选MN2向第一SN和候选SN2发送SN添加请求，以及分别接收第一SN和候选SN2发送的添加确认信息。
909，候选MN2接收候选SN2发送的添加确认信息。也就是说，终端设备能够同时与该候选MN2和候选SN2建立DC。
910，候选MN2向第一SN发送SN添加请求。
911，候选MN2接收第一SN发送的添加确认信息。也就是说，终端设备能够同时与该候选MN2和第一SN建立DC。
912，候选MN2向第一MN发送第二切换触发条件。
也就是说，第一MN接收到的至少一个切换触发条件包括该第一切换触发条件和第二切换触发条件。
需要说明的是，步骤901-905，与步骤906-912的先后顺序不进行限定。其中，步骤902-903，与步骤904-905的先后顺序不进行限定。其中，步骤908-909，与步骤910-911的先后顺序不进行限定。
913，第一MN发送第一消息，该第一消息用于指示该至少一个候选MN下的一个或多个小区的切换触发条件。
914，终端设备向候选MN1发起随机接入。
应理解，该候选MN1对应于图7所示的实施例中的第二MN。
915，终端设备向候选MN1发送第一响应消息，该第一响应消息用于指示该第二MN下的第二小区。
916，终端设备向第一SN发起随机接入。
应理解，该第一SN与第二SN为同一个SN。
917，候选MN1向第一SN发送该第一响应消息。
918，候选MN1向第一MN发送第一信息，该第一信息用于指示第二SN与该第一SN为同一个SN。
919，第一MN向第一SN发送第二信息，该第二信息用于指示该第一SN保存终端设备的上下文信息。
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。
可以理解的是，上述各个方法实施例中，由终端实现的方法和操作，也可以由可用于终端的部件(例如芯片或者电路)实现，由接入网设备实现的方法和操作，也可以由可用于接入网设备的部件(例如芯片或者电路)实现。此外，上述各个方法实施例是从各个网元交互的角度进行的描述，从这些描述，可以直接毫无疑义的获得单个网元所执行的方法步骤，以及相关的描述，为了简洁，在此不予赘述。
上述主要从各个交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以使用硬件的形式实现，也可以使用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。下面以使用对应各个功能划分各个功能模块为例进行说明。
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
以上，结合图5至图9详细说明了本申请实施例提供的方法。以下，结合图10至图19详细说明本申请实施例提供的装置。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。
图10示出了本申请实施例的通信装置1000的示意性框图。
应理解，该装置1000可以对应于图5或图8所示的实施例中的第一MN或第一MN中的芯片，可以具有方法中的MN的任意功能。该装置1000，包括处理模块1010和收发模块1020。
该处理模块1010，用于获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
该收发模块1020，用于向终端设备发送第一消息，该第一消息包括该切换触发条件信息。
可选地，该处理模块1010具体用于：通过该收发模块从该第一辅接入网设备接收该切换触发条件信息。
可选地，该处理模块1010具体用于：生成该切换触发条件信息。
可选地，该收发模块1020，还用于从该第一辅接入网设备接收该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息；该收发模块，还用于从该至少一个候选辅接入网设备中的第一候选辅接入网设备接收该第一候选接入网设备下的一个或多个小区的配置信息；该收发模块，具体用于：向该终端设备发送该第一消息，该第一消息还包括该至少一个该候选辅接入网设备下的一个或多个小区的小区标识、配置信息和测量质量信息中的至少一项。
可选地，该收发模块1020，还用于向该第一候选辅接入网设备发送第一请求，该第 一请求用于请求该第一候选辅接入网设备为该终端设备配置的配置信息。
可选地，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
可选地，该收发模块1020，还用于从该终端设备接收第一响应消息，该第一响应消息用于指示该终端设备从该至少一个候选辅接入网设备选中的第二辅接入网设备下的第二小区的小区标识，其中，该第二小区满足该第二小区的切换触发条件信息指示的切换触发条件。
可选地，该收发模块1020，还用于向该第一辅接入网设备发送第二消息，该第二消息用于指示该主接入网设备对候选辅接入网设备的添加情况。
可选地，该第二消息包括该主接入网设备成功添加的候选辅接入网设备的确认信息，和/或该主接入网设备添加失败的候选辅接入网设备的信息。
图11示出了本申请实施例提供的通信装置1100，该装置1100可以为图5或图8中所述的第一MN。该装置可以采用如图11所示的硬件架构。该装置可以包括处理器1110和收发器1120，可选地，该装置还可以包括存储器1130，该处理器1110、收发器1120和存储器1130通过内部连接通路互相通信。图10中的处理模块1010所实现的相关功能可以由处理器1110来实现，收发模块1020所实现的相关功能可以由处理器1110控制收发器1120来实现。
可选地，处理器1110可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端设备、或芯片等)进行控制，执行软件程序，处理软件程序的数据。
可选地，该处理器1110可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1120用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1130包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器1140用于存储相关指令及数据。
存储器1130用于存储终端设备的程序代码和数据，可以为单独的器件或集成在处理器1110中。
具体地，所述处理器1110用于控制收发器与终端设备进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
在具体实现中，作为一种实施例，装置1100还可以包括输出设备和输入设备。输出设备和处理器1110通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。
可以理解的是，图11仅仅示出了通信装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
在一种可能的设计中，该装置1100可以是芯片，例如可以为可用于终端设备中的通信芯片，用于实现终端设备中处理器1110的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种装置，该装置可以是终端设备也可以是电路。该装置可以用于执行上述方法实施例中由终端设备所执行的动作。
图12示出了本申请实施例的通信装置1200的示意性框图。
应理解，该装置1200可以对应于图5或图8所示的实施例中的第一SN或第一SN中的芯片，可以具有方法中的第一SN的任意功能。该装置1200，包括处理模块1210和收发模块1220。
该处理模块1210，用于确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
该收发模块1220，用于向该主接入网设备发送该切换触发条件信息。
可选地，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差为该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
可选地，该收发模块1220，还用于向该主接入网设备发送该至少一个候选辅接入网设备下的一个或多个小区的测量质量信息。
可选地，该收发模块1220，还用于从该主接入网设备接收二消息，该二消息用于指示该主接入网设备对该至少一个候选辅接入网设备的添加情况。
可选地，该第二消息包括该至少一个候选辅接入网设备中的该主接入网设备成功添加的候选辅接入网设备的确认信息，和/或该至少一个候选辅接入网设备中的该主接入网设备添加失败的候选辅接入网设备的信息。
图13示出了本申请实施例提供的通信装置1300，该装置1300可以为图5或图8中 所述的第一SN。该装置可以采用如图13所示的硬件架构。该装置可以包括处理器1310和收发器1320，可选地，该装置还可以包括存储器1330，该处理器1310、收发器1320和存储器1330通过内部连接通路互相通信。图13中的处理模块1320所实现的相关功能可以由处理器1310来实现，收发模块1310所实现的相关功能可以由处理器1310控制收发器1320来实现。
可选地，处理器1310可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端设备、或芯片等)进行控制，执行软件程序，处理软件程序的数据。
可选地，该处理器1310可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1320用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1330包括但不限于是随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器1330用于存储相关指令及数据。
存储器1330用于存储终端设备的程序代码和数据，可以为单独的器件或集成在处理器1310中。
具体地，所述处理器1310用于控制收发器与终端设备进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
在具体实现中，作为一种实施例，装置1300还可以包括输出设备和输入设备。输出设备和处理器1310通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器601通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。
可以理解的是，图13仅仅示出了通信装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
在一种可能的设计中，该装置1300可以是芯片，例如可以为可用于终端设备中的通信芯片，用于实现终端设备中处理器1310的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种装置，该装置可以是终端设备也可以是电路。该装置可以用于执行上述方法实施例中由终端设备所执行的动作。
图14示出了本申请实施例的通信装置1400的示意性框图。
应理解，该装置1400可以对应于图5或图8所示的实施例中的终端设备或终端设备内的芯片，可以具有图5或图8方法中的终端设备的任意功能。该装置1400，包括收发模块1410。
该收发模块1410，用于从该主接入网设备接收第一消息，该第一消息包括至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
该收发模块1410，还用于向该主接入网设备发送第一响应消息，该第一响应消息用于指示该至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区，该第二小区满足该第二小区的切换触发条件信息指示的切换触发条件。
可选地，该装置1400还可以包括处理模块1420，该处理模块用于从该至少一个候选辅接入网设备中确定该第二辅接入网设备。
可选地，该至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示该第一小区的切换触发条件信息的有效时间、该第一小区的切换触发条件和该第一小区的优先级中的一项或多项，该第一小区的切换触发条件包括触发该终端设备切换到该第一小区的测量质量阈值或触发该终端设备切换到该第一小区的质量偏差的阈值，该质量偏差包括该终端设备与服务小区之间的测量质量，和该终端设备与该第一小区之间的测量质量的差值。
可选地，该第一响应消息包括该第二小区的小区标识。
图15示出了本申请实施例提供的通信装置1500，该装置1500可以为图5或图8中所述的终端设备。该装置可以采用如图15所示的硬件架构。该装置可以包括处理器1510和收发器1520，可选地，该装置还可以包括存储器1530，该处理器1510、收发器1520和存储器1530通过内部连接通路互相通信。图14中的处理模块1420所实现的相关功能可以由处理器1510来实现，收发模块1410所实现的相关功能可以由处理器1510控制收发器1520来实现。
可选地，处理器1510可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，专用处理器，或一个或多个用于执行本申请实施例技术方案的集成电路。或者，处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、终端设备、或芯片等)进行控制，执行软件程序，处理软件程序的数据。
可选地，该处理器1510可以包括是一个或多个处理器，例如包括一个或多个中央处理单元(central processing unit，CPU)，在处理器是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该收发器1520用于发送和接收数据和/或信号，以及接收数据和/或信号。该收发器可以包括发射器和接收器，发射器用于发送数据和/或信号，接收器用于接收数据和/或信号。
该存储器1530包括但不限于是随机存取存储器(random access memory，RAM)、只 读存储器(read-only memory，ROM)、可擦除可编程存储器(erasable programmable read only memory，EPROM)、只读光盘(compact disc read-only memory，CD-ROM)，该存储器1530用于存储相关指令及数据。
存储器1530用于存储终端设备的程序代码和数据，可以为单独的器件或集成在处理器1510中。
具体地，所述处理器1510用于控制收发器与终端设备进行信息传输。具体可参见方法实施例中的描述，在此不再赘述。
在具体实现中，作为一种实施例，装置1500还可以包括输出设备和输入设备。输出设备和处理器1510通信，可以以多种方式来显示信息。例如，输出设备可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备和处理器601通信，可以以多种方式接收用户的输入。例如，输入设备可以是鼠标、键盘、触摸屏设备或传感设备等。
可以理解的是，图15仅仅示出了通信装置的简化设计。在实际应用中，该装置还可以分别包含必要的其他元件，包含但不限于任意数量的收发器、处理器、控制器、存储器等，而所有可以实现本申请的终端设备都在本申请的保护范围之内。
在一种可能的设计中，该装置1500可以是芯片，例如可以为可用于终端设备中的通信芯片，用于实现终端设备中处理器1510的相关功能。该芯片可以为实现相关功能的现场可编程门阵列，专用集成芯片，系统芯片，中央处理器，网络处理器，数字信号处理电路，微控制器，还可以采用可编程控制器或其他集成芯片。该芯片中，可选的可以包括一个或多个存储器，用于存储程序代码，当所述代码被执行时，使得处理器实现相应的功能。
本申请实施例还提供一种装置，该装置可以是终端设备也可以是电路。该装置可以用于执行上述方法实施例中由终端设备所执行的动作。
可选地，本实施例中的装置为终端设备时，图16示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图16中，终端设备以手机作为例子。如图16所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图16中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图16所示，终端设备包括收发单元1610和处理单元1620。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1610中用于实现接收功能的器件视为接收单元，将收发单元1610中用于实现发送功能的器件视为发送单元，即收发单元1610包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1610用于执行上述方法实施例中终端设备侧的发送操作和接收操作，处理单元1620用于执行上述方法实施例中终端设备上除了收发操作之外的其他操作。
例如，在一种实现方式中，处理单元1620用于执行图5、图7-图9中终端设备侧的处理步骤。收发单元1610，用于执行图5、图7-图9中的步骤301和/或步骤302中的收发操作，和/或收发单元1610还用于执行本申请实施例中终端设备侧的其他收发步骤。
当该通信装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
可选地，该装置为终端设备时，还可以参照图17所示的设备。作为一个例子，该设备可以完成类似于图16中处理器1620的功能。在图17中，该设备包括处理器1701，发送数据处理器1703，接收数据处理器1705。上述实施例中的处理模块可以是图17中的该处理器1701，并完成相应的功能。上述实施例中的收发模块可以是图17中的发送数据处理器1703和接收数据处理器1705。虽然图17中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图18示出本实施例的装置的另一种形式。该装置1800中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信设备可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1803，接口1804。其中处理器1803完成上述处理模块的功能，接口1804完成上述收发模块的功能。作为另一种变形，该调制子系统包括存储器1806、处理器1803及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现实施例一至五之一所述方法。需要注意的是，所述存储器1806可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于装置1800中，只要该存储器1806可以连接到所述处理器1803即可。
本实施例中的装置为接入网设备时，该接入网设备可以如图19所示，例如，该装置190为基站。该基站可应用于如图1-图3所示的系统中，执行上述方法实施例中主接入网设备或辅接入网设备的功能。基站190可包括一个或多个DU 1901和一个或多个CU 1902。CU1902可以与下一代核心网(NG core，NC)通信。所述DU 1901可以包括至少一个天线19011，至少一个射频单元19012，至少一个处理器19013和至少一个存储器19014。所述DU 1901部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU1902可以包括至少一个处理器19022和至少一个存储器19021。CU1902和DU1901之间可以通过接口进行通信，其中，控制面(control plane)接口可以为Fs-C，比如F1-C，用户面(user plane)接口可以为Fs-U，比如F1-U。
所述CU 1902部分主要用于进行基带处理，对基站进行控制等。所述DU 1901与CU  1902可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU 1902为基站的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU 1902可以用于控制基站执行上述方法实施例中关于接入网设备的操作流程。
具体的，CU和DU上的基带处理可以根据无线网络的协议层划分，例如分组数据汇聚层协议(packet data convergence protocol，PDCP)层及以上协议层的功能设置在CU，PDCP以下的协议层，例如无线链路控制(radio link control，RLC)层和介质接入控制(medium access control，MAC)层等的功能设置在DU。又例如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)、MAC和物理(physical，PHY)层的功能。
此外，可选的，基站190可以包括一个或多个射频单元(RU)，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器19013和至少一个存储器19014，RU可以包括至少一个天线19011和至少一个射频单元19012，CU可以包括至少一个处理器19022和至少一个存储器19021。
在一个实例中，所述CU1902可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器19021和处理器19022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。所述DU1901可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器19014和处理器19013可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
作为本实施例的另一种形式，提供一种计算机可读存储介质，其上存储有指令，该指令被执行时执行上述方法实施例中的方法。
作为本实施例的另一种形式，提供一种包含指令的计算机程序产品，该指令被执行时执行上述方法实施例中的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例 如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
应理解，处理器可以是集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchronous link DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限 于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
还应理解，本文中涉及的第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。
应理解，本文中术语“和/或”，仅仅是一种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。其中，单独存在A或B，并不限定A或B的数量。以单独存在A为例，可以理解为具有一个或多个A。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请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。
所述功能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，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请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，或者接入网设备等)执行本申请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。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (45)

  1. 一种通信方法，其特征在于，所述方法应用于包括主接入网设备和第一辅接入网设备的通信系统中，所述方法包括：
    获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    向终端设备发送第一消息，所述第一消息包括所述切换触发条件信息。
  2. 根据权利要求1所述的方法，其特征在于，所述获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息包括：
    从所述第一辅接入网设备接收所述切换触发条件信息。
  3. 根据权利要求1所述的方法，其特征在于，所述获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息包括：
    生成所述切换触发条件信息。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    从所述第一辅接入网设备接收所述至少一个候选辅接入网设备下的一个或多个小区的测量质量信息；
    从所述至少一个候选辅接入网设备中的第一候选辅接入网设备接收所述第一候选接入网设备下的一个或多个小区的配置信息；
    其中，所述向终端设备发送第一消息包括：
    向所述终端设备发送所述第一消息，所述第一消息还包括所述至少一个所述候选辅接入网设备下的一个或多个小区的小区标识、配置信息和测量质量信息中的至少一项。
  5. 根据权利要求4所述的方法，其特征在于，在接收所述第一小区的配置信息之前，所述方法还包括：
    向所述第一候选辅接入网设备发送第一请求，所述第一请求用于请求所述第一候选辅接入网设备为所述终端设备配置的配置信息。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    从所述终端设备接收第一响应消息，所述第一响应消息用于指示所述至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区的小区标识，其中，所述第二小区满足所述第二小区的切换触发条件信息指示的切换触发条件。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第一辅接入网设备发送第二消息，所述第二消息用于指示所述主接入网设备对候选辅接入网设备的添加情况。
  9. 根据权利要求8所述的方法，其特征在于，所述第二消息包括所述主接入网设备成功添加的候选辅接入网设备的确认信息，和/或所述主接入网设备添加失败的候选辅接入网设备的信息。
  10. 一种通信方法，其特征在于，所述方法应用于包括主接入网设备和第一辅接入网设备的通信系统中，所述方法包括：
    确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    向所述主接入网设备发送所述切换触发条件信息。
  11. 根据权利要求10所述的方法，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  12. 根据权利要求10或11所述的方法，其特征在于，所述方法还包括：
    向所述主接入网设备发送所述至少一个候选辅接入网设备下的一个或多个小区的测量质量信息。
  13. 根据权利要求10至12中任一项所述的方法，其特征在于，所述方法还包括：
    从所述主接入网设备接收第二消息，所述第二消息用于指示所述主接入网设备对所述至少一个候选辅接入网设备的添加情况。
  14. 一种通信方法，其特征在于，所述方法应用于包括主接入网设备和第一辅接入网设备的通信系统中，所述方法包括：
    从所述主接入网设备接收第一消息，所述第一消息包括至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    向所述主接入网设备发送第一响应消息，所述第一响应消息用于指示所述至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区，所述第二小区满足所述第二小区的切换触发条件信息指示的切换触发条件。
  15. 根据权利要求14所述的方法，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  16. 一种通信装置，其特征在于，包括处理模块和收发模块，
    所述处理模块，用于获取至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    所述收发模块，用于向终端设备发送第一消息，所述第一消息包括所述切换触发条件信息。
  17. 根据权利要求16所述的通信装置，其特征在于，所述收发模块，还用于从第一辅接入网设备接收所述切换触发条件信息。
  18. 根据权利要求16所述的通信装置，其特征在于，所述处理模块，具体用于生成所述切换触发条件信息。
  19. 根据权利要求16至18中任一项所述的通信装置，其特征在于，所述收发模块，还用于：
    从第一辅接入网设备接收所述至少一个候选辅接入网设备下的一个或多个小区的测量质量信息；
    从所述至少一个候选辅接入网设备中的第一候选辅接入网设备接收所述第一候选接入网设备下的一个或多个小区的配置信息；
    向所述终端设备发送所述第一消息，所述第一消息还包括所述至少一个所述候选辅接入网设备下的一个或多个小区的小区标识、配置信息和测量质量信息中的至少一项。
  20. 根据权利要求19所述的通信装置，其特征在于，所述收发模块，还用于：
    向所述第一候选辅接入网设备发送第一请求，所述第一请求用于请求所述第一候选辅接入网设备为所述终端设备配置的配置信息。
  21. 根据权利要求16至20中任一项所述的通信装置，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  22. 根据权利要求21所述的通信装置，其特征在于，所述收发模块，还用于：
    从所述终端设备接收第一响应消息，所述第一响应消息用于指示所述至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区的小区标识，其中，所述第二小区满足所述第二小区的切换触发条件信息指示的切换触发条件。
  23. 根据权利要求16至22中任一项所述的通信装置，其特征在于，所述收发模块，还用于：
    向第一辅接入网设备发送第二消息，所述第二消息用于指示主接入网设备对候选辅接入网设备的添加情况。
  24. 根据权利要求23所述的通信装置，其特征在于，所述第二消息包括所述主接入网设备成功添加的候选辅接入网设备的确认信息，和/或，所述主接入网设备添加失败的候选辅接入网设备的信息。
  25. 根据权利要求16至24中任一项所述的通信装置，其特征在于，所述处理模块为处理器，所述收发模块为收发器。
  26. 根据权利要求16至25中任一项所述的通信装置，其特征在于，所述装置为以下任一项：接入网设备、芯片或芯片系统。
  27. 一种通信装置，其特征在于，包括处理模块和收发模块，
    所述处理模块，用于确定至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    所述收发模块，用于向主接入网设备发送所述切换触发条件信息。
  28. 根据权利要求27所述的通信装置，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  29. 根据权利要求27或28所述的通信装置，其特征在于，所述收发模块，还用于：
    向所述主接入网设备发送所述至少一个候选辅接入网设备下的一个或多个小区的测量质量信息。
  30. 根据权利要求27至29中任一项所述的通信装置，其特征在于，所述收发模块，还用于：
    从所述主接入网设备接收第二消息，所述第二消息用于指示所述主接入网设备对所述至少一个候选辅接入网设备的添加情况。
  31. 根据权利要求27至30中任一项所述的通信装置，其特征在于，所述处理模块为处理器，所述收发模块为收发器。
  32. 根据权利要求27至31中任一项所述的通信装置，其特征在于，所述装置为以下任一项：接入网设备、芯片或芯片系统。
  33. 一种通信装置，其特征在于，包括收发模块，
    所述收发模块，用于从主接入网设备接收第一消息，所述第一消息包括至少一个候选辅接入网设备下的一个或多个小区的切换触发条件信息；
    所述收发模块，还用于向所述主接入网设备发送第一响应消息，所述第一响应消息用于指示所述至少一个候选辅接入网设备中的第二辅接入网设备下的第二小区，所述第二小区满足所述第二小区的切换触发条件信息指示的切换触发条件。
  34. 根据权利要求33所述的通信装置，其特征在于，所述至少一个候选辅接入网设备下的第一小区的切换触发条件信息用于指示所述第一小区的切换触发条件信息的有效时间、所述第一小区的切换触发条件和所述第一小区的优先级中的一项或多项，所述第一小区的切换触发条件包括触发所述终端设备切换到所述第一小区的测量质量阈值或触发所述终端设备切换到所述第一小区的质量偏差的阈值，所述质量偏差包括所述终端设备与服务小区之间的测量质量，和所述终端设备与所述第一小区之间的测量质量的差值。
  35. 根据权利要求33或34所述的通信装置，其特征在于，所述收发模块为收发器。
  36. 根据权利要求33至35中任一项所述的通信装置，其特征在于，所述装置为以下任一项：终端设备、芯片或芯片系统。
  37. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器用于执行如权利要求1至15中任一项所述的方法。
  38. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，所述处理器用于执行所述程序或指令，以使所述装置执行如权利要求1至15中任一项所述的方法。
  39. 一种处理装置，其特征在于，包括至少一个处理器，所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置实现如权利要求1至15中任一项所述的 方法。
  40. 一种处理装置，其特征在于，包括：
    通信接口，用于输入和/或输出信息；
    处理器，用于执行计算机程序，以使得所述装置实现如权利要求1至15中任一项所述的方法。
  41. 一种处理装置，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于从所述存储器调用并运行所述计算机程序，以使得所述装置实现如权利要求1至15中任一项所述的方法。
  42. 一种芯片，其特征在于，包括：处理器和接口，用于从存储器中调用并运行所述存储器中存储的计算机程序，执行如权利要求1至15中任一项所述的方法。
  43. 一种计算机可读存储介质，其特征在于，用于存储程序或指令，当所述程序或指令被运行时，如权利要求1至15中任一项所述的方法被执行。
  44. 一种计算机程序产品，当其在处理器上运行时，使得处理器执行权利要求1至15中任一项所述的方法。
  45. 一种通信系统，其特征在于，包括：
    如权利要求16至36中任一项所述的通信装置；或者，
    如权利要求16至26中任一项所述的通信装置，以及如权利要求27至32中任一项所述的通信装置，以及如权利要求33至36中任一项所述的通信装置；或者，
    如权利要求27至32中任一项所述的通信装置，以及如权利要求33至36中任一项所述的通信装置；或者，
    如权利要求16至26中任一项所述的通信装置，以及如权利要求33至36中任一项所述的通信装置；或者，
    如权利要求16至26中任一项所述的通信装置，以及如权利要求27至32中任一项所述的通信装置。
PCT/CN2020/109006 2019-08-15 2020-08-13 通信方法和通信装置 WO2021027896A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20852953.7A EP4017099A4 (en) 2019-08-15 2020-08-13 COMMUNICATION METHOD AND COMMUNICATION APPARATUS
US17/670,761 US20220167235A1 (en) 2019-08-15 2022-02-14 Communication Method and Apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910755236.9A CN112399493B (zh) 2019-08-15 2019-08-15 通信方法和通信装置
CN201910755236.9 2019-08-15

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/670,761 Continuation US20220167235A1 (en) 2019-08-15 2022-02-14 Communication Method and Apparatus

Publications (1)

Publication Number Publication Date
WO2021027896A1 true WO2021027896A1 (zh) 2021-02-18

Family

ID=74570464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/109006 WO2021027896A1 (zh) 2019-08-15 2020-08-13 通信方法和通信装置

Country Status (4)

Country Link
US (1) US20220167235A1 (zh)
EP (1) EP4017099A4 (zh)
CN (2) CN115002855A (zh)
WO (1) WO2021027896A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022233488A1 (en) * 2021-05-06 2022-11-10 Nokia Technologies Oy Method and apparatus for conditional handover

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4022977B1 (en) * 2019-10-12 2024-05-22 Nokia Technologies Oy Signaling reduction at handover of an iab node
US11895543B2 (en) * 2020-04-06 2024-02-06 Intel Corporation MRO for 5G networks
CN116017591A (zh) * 2021-10-22 2023-04-25 华为技术有限公司 通信方法和通信装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104202780A (zh) * 2014-09-15 2014-12-10 宇龙计算机通信科技(深圳)有限公司 小区加减方法、小区加减装置、服务基站和终端
CN109803398A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 通信方法及其终端设备、网络设备
WO2019148677A1 (en) * 2018-01-31 2019-08-08 Jrd Communication (Shenzhen) Ltd Communication handover method and apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113301618B (zh) * 2017-03-24 2022-10-04 华为技术有限公司 通信方法、网络设备和终端
US11272417B2 (en) * 2018-01-12 2022-03-08 FG Innovation Company Limited Conditional handover procedures
CN110290530B (zh) * 2018-03-19 2021-04-13 维沃移动通信有限公司 无线通信的方法、源节点和目标节点

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104202780A (zh) * 2014-09-15 2014-12-10 宇龙计算机通信科技(深圳)有限公司 小区加减方法、小区加减装置、服务基站和终端
CN109803398A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 通信方法及其终端设备、网络设备
WO2019148677A1 (en) * 2018-01-31 2019-08-08 Jrd Communication (Shenzhen) Ltd Communication handover method and apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "Report of e-mail [100#31][NR] Inter-Node RRC message", 3GPP DRAFT; R2-1800845 REPORT EMAIL 100#31 ON RRC INM, vol. RAN WG2, 26 January 2017 (2017-01-26), Vancouver, Canada, pages 1 - 31, XP051386925 *
See also references of EP4017099A4
ZTE: "Baseline CR for TS 37.340 Covering Agreements of RAN3#AH1807", 3GPP DRAFT; R3-184512 37.340 BLCR, vol. RAN WG3, 24 August 2018 (2018-08-24), Gothenburg, Sweden, pages 1 - 54, XP051527877 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022233488A1 (en) * 2021-05-06 2022-11-10 Nokia Technologies Oy Method and apparatus for conditional handover

Also Published As

Publication number Publication date
CN112399493A (zh) 2021-02-23
CN112399493B (zh) 2022-05-13
EP4017099A4 (en) 2022-10-12
CN115002855A (zh) 2022-09-02
EP4017099A1 (en) 2022-06-22
US20220167235A1 (en) 2022-05-26

Similar Documents

Publication Publication Date Title
US20230076897A1 (en) Reliability enhancement for pdcch
WO2021027896A1 (zh) 通信方法和通信装置
KR101775295B1 (ko) Tdd-fdd 캐리어 집성을 위한 harq 타임라인들
JP2024023591A (ja) Ｆｄｄ‐ｔｄｄジョイントキャリアアグリゲーションのためのアップリンク制御シグナリング
JP6257759B2 (ja) マルチキャリア環境内における無線リンク性能を向上させるためのシステム及び方法
US11968675B2 (en) Uplink control information sending and receiving method and communications apparatus
WO2021032203A1 (zh) Pucch传输方法、终端设备和网络设备
WO2021062839A1 (zh) 通信方法和通信装置
US10028155B2 (en) Buffer management for wireless networks
US11882566B2 (en) Communications method and apparatus
WO2021027822A1 (zh) 应用pdsch的处理时长的方法和装置
WO2021062764A1 (zh) 终端的定时提前量ta处理的方法和装置
WO2018171461A1 (zh) 信息传输方法、装置及系统
US20220174572A1 (en) Link failure report transmission method and apparatus
TWI535319B (zh) 處理分時雙工系統中資源配置的方法及其通訊裝置
WO2021106160A1 (ja) 無線通信ノード
US20230261723A1 (en) Apparatus, Method, and Computer Program
TWI785345B (zh) 資訊傳輸方法、裝置及電腦存儲介質
WO2021159398A1 (zh) 波束失败恢复的方法和装置
WO2021152729A1 (ja) 無線通信ノード
JP7219340B2 (ja) 端末
KR20230088907A (ko) 데이터 전송 방법, 장치 및 기기
WO2023198044A1 (zh) 信息接收方法、信息发送方法、装置及设备
WO2021161467A1 (ja) 無線通信ノード
TWI793471B (zh) 信號傳輸方法及裝置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20852953

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020852953

Country of ref document: EP

Effective date: 20220315