WO2023108564A1 - 无线通信方法、终端设备以及网络设备 - Google Patents

无线通信方法、终端设备以及网络设备 Download PDF

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Publication number
WO2023108564A1
WO2023108564A1 PCT/CN2021/138895 CN2021138895W WO2023108564A1 WO 2023108564 A1 WO2023108564 A1 WO 2023108564A1 CN 2021138895 W CN2021138895 W CN 2021138895W WO 2023108564 A1 WO2023108564 A1 WO 2023108564A1
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WIPO (PCT)
Prior art keywords
terminal device
handover
layer
indication information
cell
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Ceased
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PCT/CN2021/138895
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English (en)
French (fr)
Inventor
尤心
范江胜
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Filing date
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2021/138895 priority Critical patent/WO2023108564A1/zh
Priority to CN202180102817.8A priority patent/CN118318470A/zh
Publication of WO2023108564A1 publication Critical patent/WO2023108564A1/zh
Anticipated expiration legal-status Critical
Priority to US18/745,342 priority patent/US20240340722A1/en
Ceased legal-status Critical Current

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    • 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
    • H04W36/00835—Determination of neighbour cell lists
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method, a terminal device, and a network device.
  • the New Radio (NR) system supports the handover process of the UE in the connected state. Similar to the Long Term Evolution (LTE) system, when a user using network services moves from one cell to another, or due to wireless transmission business load adjustment, activation operation maintenance, equipment failure, etc., in order to ensure communication continuity and quality of service, when the system wants to transfer the communication link between the user and the original cell to a new cell, it can implement the cell switching process.
  • LTE Long Term Evolution
  • the embodiment of the present application provides a wireless communication method, a terminal device, and a network device, which not only facilitate the terminal device to switch the serving cell of the terminal device based on the bottom layer, but also reduce the time delay of cell switching.
  • the present application provides a wireless communication method, including:
  • the radio resource control RRC layer of the terminal device through the medium access control MAC layer of the terminal device, so as to trigger the RRC layer to send an RRC reconfiguration complete message to the network device, wherein the first A piece of indication information is used to indicate that the terminal device has completed the handover of the serving cell; or
  • the present application provides a wireless communication method, including:
  • the first indication information sent by the terminal device is received through layer 1 or layer 2 of the network device, where the first indication information is used to indicate that the terminal device has completed switching of the serving cell.
  • the present application provides a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module configured to execute the method in the foregoing first aspect or its various implementation manners.
  • the terminal device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the terminal device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the terminal device is a communication chip, the sending unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module configured to execute the method in the above second aspect or each implementation manner thereof.
  • the network device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the network device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the network device is a communication chip, the receiving unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a terminal device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so as to execute the method in the above first aspect or each implementation manner thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the terminal device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, so as to execute the method in the above second aspect or each implementation manner thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the network device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a chip configured to implement any one of the above-mentioned first aspect to the second aspect or a method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first to second aspects or various implementations thereof method in .
  • the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof .
  • the present application provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • the present application provides a computer program, which, when run on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the present application uses the MAC layer of the terminal equipment to the RRC layer of the terminal equipment Reporting the first indication information used to indicate that the terminal device has completed the switching of the serving cell, so as to trigger the RRC layer to send an RRC reconfiguration complete message to the network device, or send a message to the network device through Layer 1 or Layer 2 of the terminal device.
  • the network device sending the first instruction information can ensure that the terminal device can successfully send the first instruction information to the network device after the bottom layer-based cell handover is successful, which is not only beneficial for the terminal device to realize Switching the serving cell of the terminal device can also reduce the time delay of cell switching.
  • Fig. 1 is an example of the system framework of the embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a cell handover method provided by an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of conditional switching provided by the embodiment of the present application.
  • FIG. 4 and FIG. 5 are schematic flowcharts of a wireless communication method provided by an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • FIG. 1 is an example of a system framework 100 of an embodiment of the present application.
  • a communication system 100 may include a terminal device 110 and a network device 120 .
  • the network device 120 may communicate with the terminal device 110 through an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .
  • the embodiment of the present application is only described by using the communication system 100 as an example, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), Internet of Things (Internet of Things, IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system , 5G communication system (also known as New Radio (NR) communication system), or future communication systems, etc.
  • LTE Long Term Evolution
  • LTE Time Division Duplex Time Division Duplex
  • TDD Universal Mobile Communication System
  • Universal Mobile Telecommunication System Universal Mobile Telecommunication System
  • UMTS Universal Mobile Communication System
  • Internet of Things Internet of Things
  • NB-IoT Narrow Band Internet of Things
  • eMTC enhanced Machine-Type Communications
  • the network device 120 may be an access network device that communicates with the terminal device 110 .
  • the access network device can provide communication coverage for a specific geographic area, and can communicate with terminal devices 110 (such as UEs) located in the coverage area.
  • the network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long-term evolution (Long Term Evolution, LTE) system, or a next-generation radio access network (Next Generation Radio Access Network, NG RAN) device, Either a base station (gNB) in the NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolution of the Public Land Mobile Network (Public Land Mobile Network, PLMN), etc.
  • Evolutional Node B, eNB or eNodeB in a long-term evolution (Long Term Evolution, LTE) system
  • NG RAN next-generation radio access network
  • gNB base station
  • CRAN Cloud Radio Access Network
  • the network device 120 can be a relay station, an access point,
  • the terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wirelessly.
  • the terminal equipment 110 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, user agent, or user device.
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, IoT devices, satellite handheld terminals, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) , PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolution networks, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device 110 can be used for device-to-device (Device to Device, D2D) communication.
  • D2D Device to Device
  • the wireless communication system 100 may also include a core network device 130 that communicates with the base station.
  • the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, Access and Mobility Management Function (Access and Mobility Management Function , AMF), and for example, authentication server function (Authentication Server Function, AUSF), and for example, user plane function (User Plane Function, UPF), and for example, session management function (Session Management Function, SMF).
  • the core network device 130 may also be a packet core evolution (Evolved Packet Core, EPC) device of the LTE network, for example, a data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) Equipment.
  • EPC packet core evolution
  • SMF+PGW-C can realize the functions of SMF and PGW-C at the same time.
  • the above-mentioned core network equipment may be called by other names, or a new network entity may be formed by dividing functions of the core network, which is not limited in this embodiment of the present application.
  • Various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.
  • NG next generation network
  • the terminal device establishes an air interface connection with the access network device through the NR interface to transmit user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment such as the next generation wireless access base station (gNB), can establish a user plane data connection with UPF through NG interface 3 (abbreviated as N3); access network equipment can establish control plane signaling with AMF through NG interface 2 (abbreviated as N2) connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (abbreviated as N4); UPF can exchange user plane data with the data network through NG interface 6 (abbreviated as N6); AMF can communicate with SMF through NG interface 11 (abbreviated as N11) The SMF establishes a control plane signaling connection; the SMF may establish a control plane signaling connection with the PCF through an NG interface 7 (N7 for short).
  • gNB next generation wireless access base station
  • Figure 1 exemplarily shows a base station, a core network device, and two terminal devices.
  • the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminals within the coverage area.
  • the device is not limited in the embodiment of this application.
  • the communication device may include a network device 120 and a terminal device 110 having a communication function, and the network device 120 and the terminal device 110 may be the devices described above, which will not be repeated here;
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "correspondence” mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated. , configuration and configured relationship.
  • the "predefined” or “predefined rules” mentioned in the embodiments of this application can be used by pre-saving corresponding codes, tables or other It is implemented by indicating related information, and this application does not limit the specific implementation.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit this .
  • the term "indication” involved in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the switching process can be divided into the following three stages:
  • Handover preparation stage including measurement control and reporting, handover request and confirmation.
  • the handover confirmation message includes the handover command generated by the target cell, and the source cell does not allow any modification to the handover command generated by the target cell, and directly forwards the handover command to the UE.
  • Handover execution stage UE immediately executes the handover process after receiving the handover command, that is, the UE disconnects the source cell and connects with the target cell (such as performing random access, sending an RRC handover completion message to the target base station, etc.); further, Perform sequence number (SN) state transfer and data forwarding.
  • SN sequence number
  • Fig. 2 is a schematic block diagram of a cell handover method provided by an embodiment of the present application.
  • the handover preparation phase (S201-S205) may include:
  • the source base station triggers the terminal device to measure neighboring cells, so that the terminal device can measure neighboring cells and report the measurement result to the source base station.
  • the source base station evaluates the measurement results reported by the terminal equipment, and decides whether to trigger handover.
  • the source base station may send a handover request to the target base station.
  • the target base station may start admission according to the service information carried by the source base station, and perform radio resource configuration.
  • the target base station sends a handover request confirmation message to the source base station, and returns the admission result and radio resource configuration information in the target base station to the source base station. So far, the handover preparation phase is completed.
  • the handover execution phase (S206-S208) may include:
  • the source base station may trigger the terminal device to perform handover.
  • the source base station may forward the buffered data, the data packet being transmitted, the system serial number of the data, etc. to the target base station. Also, the target base station may buffer data received from the source base station.
  • the terminal device can disconnect from the source base station and establish synchronization with the target base station.
  • the terminal device synchronizes to the target base station. So far, the handover execution phase is completed.
  • the handover completion stage (S209-S212) may include:
  • the target base station sends a path switching request to a mobility management function (Access and Mobility Management Function, AMF).
  • AMF Access and Mobility Management Function
  • the AMF after receiving the path switching request from the target base station, the AMF performs path switching with the User Plane Function (UPF), and clears the path flag of the user plane of the source base station.
  • UPF User Plane Function
  • the AMF may send a path switching confirmation message to the target base station.
  • the target base station sends a terminal device context release message to the source base station, notifying the source base station that the handover is successful, and triggering the source base station to release the terminal device context. At this point, the switching is complete.
  • the terminal device After receiving the handover command, the terminal device starts the T304 timer immediately, and starts downlink synchronization to the target cell, obtains the MIB information of the target cell, and then initiates random access. During the random access process, multiple preamble retransmissions are allowed until the random access is successful. Further, if the T304 timer expires, indicating that the handover fails, the terminal device may directly trigger the RRC connection reestablishment process.
  • this application provides a cell handover method based on conditional handover (Conditional handover), which is to configure a handover command for UE in advance (HO command).
  • Conditional handover is to configure a handover command for UE in advance (HO command).
  • the source base station can assign the target base station to the UE in advance, and include the conditions used to trigger the UE to perform cell handover in the handover command. When the allocated conditions are met, The UE initiates an access request to the target base station.
  • Fig. 3 is a schematic flowchart of conditional switching 300 provided by the embodiment of the present application.
  • condition switching 300 may include:
  • the source base station receives the measurement configuration sent by the source base station, and reports the measurement result measured based on the measurement configuration to the source base station.
  • the source base station sends a handover command to the UE.
  • the handover command may include a condition for triggering the UE to perform cell handover.
  • the UE initiates an access request to the target base station.
  • the terminal device synchronizes to the target base station to complete cell handover.
  • conditional handover when performing conditional handover, multiple target cells can be configured in the handover command.
  • the UE may determine which target cell to access based on configured conditions (conditions).
  • the embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which can reduce handover delay.
  • Fig. 4 is a schematic flowchart of a wireless communication method 400 provided by an embodiment of the present application, and the wireless communication method 400 may be interactively executed by a terminal device and a network device.
  • the terminal device shown in FIG. 4 may be the terminal device shown in FIG. 1
  • the network device shown in FIG. 4 may be the access network device shown in FIG. 1 .
  • the network device shown in FIG. 4 may also be called a target network device or a target base station.
  • the method 400 may include:
  • the terminal device may report the first indication information from the bottom layer to the high layer, and then trigger the high layer to send the RRC reconfiguration complete message to the network device, or the terminal device may send the RRC reconfiguration completion message to the network device through the bottom layer.
  • the first indication information may be carried in underlying signaling.
  • the higher layers may include layer 3 .
  • the layer 3 is used for transmitting control messages.
  • the layer 3 may include an Internet protocol (Internet Protocol, IP) layer, a radio resource control (Radio Resource Control, RRC) layer, and a non-access stratum (NAS).
  • IP Internet Protocol
  • RRC Radio Resource Control
  • NAS non-access stratum
  • the bottom layer may include layer 2 and/or layer 1 .
  • said layer 2 is used to provide correct transmission and reception of signaling messages, including partial duplication detection.
  • the layer 2 may include a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, a media access control (Media Access Control, MAC) layer, and the like.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • layer 1 is used to provide transmission and reception wireless links between the base station and the terminal equipment.
  • the layer 1 may include a physical layer (Physical Layer).
  • the terminal device may report the first indication information to the RRC layer of layer 3 by the MAC layer of layer 2, and then trigger the RRC layer to send the RRC reconfiguration complete message to the network device, or the terminal device
  • the first indication information may be carried in the signaling sent by layer 1 or the signaling sent by layer 2 middle.
  • the MAC layer of the terminal device reports the first indication information to the RRC layer of the terminal device, so as to trigger the RRC layer to report to the network device Sending the RRC reconfiguration complete message; or sending the first indication information to the network device through layer 1 or layer 2 of the terminal device after the cell handover based on layer 1 or layer 2 is completed.
  • the terminal device reports the first indication information to the RRC layer of the terminal device through the MAC layer of the terminal device, so as to trigger the RRC layer to send the RRC layer to the network device serving the target cell.
  • this application sends the RRC
  • the layer reports the first indication information used to indicate that the terminal device has completed the handover of the serving cell, so as to trigger the RRC layer to send an RRC reconfiguration complete message to the network device, or send an RRC reconfiguration complete message through the layer 1 or layer 2 of the terminal device to
  • the sending of the first instruction information by the network device can ensure that the terminal device can successfully send the first instruction information to the network device after successfully completing the cell handover based on the bottom layer, which is not only beneficial to the terminal device based on the bottom layer. Realizing the handover of the serving cell of the terminal device can also reduce the time delay of cell handover.
  • the Layer 1 and/or Layer 2 based handover referred to in this application may refer to a handover process triggered by lower layer (eg, Layer 1 and/or Layer 2) signaling.
  • the network device pre-configures at least one candidate cell for the terminal device, and the terminal device switches the serving cell based on the pre-configured at least one candidate cell.
  • the terminal device referred to in this application has completed the switching of the serving cell may refer to the terminal device having completed the switching of the serving cell from the source cell to the target cell.
  • the network device serving the target cell and the network device serving the source cell may be the same or different.
  • the source cell and the target cell may be distinguished by different cell identities, may also be distinguished by different transmission reception points (Transmission Reception Point, TRP), may also be distinguished by different reference signal sets, or may Through different resource distinctions, such as different control resource sets (Control Resource Set, CORESET) or/control resource set pools (CORESET pool), and different hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process distinctions, It can also be distinguished by different protocol stacks, such as Service Data Adaptation Protocol (Service Data Adaptation Protocol, SDAP) layer protocol stack, Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP) layer protocol stack, wireless link layer control (Radio Link Control, RLC) layer protocol stack, media access control (Media Access Control, MAC) or physical layer protocol stack, etc., which are not specifically limited in this application.
  • Service Data Adaptation Protocol Service Data Adaptation Protocol
  • SDAP Service Data Adaptation Protocol
  • Packet Data Convergence Protocol Packet Data Convergence Protocol
  • the first indication information when the first indication information is sent through the layer 1 or through the layer 2, the first indication information includes at least one of the following information:
  • second indication information where the second indication information is used to indicate the identity of the target cell
  • third indication information where the third indication information is used to indicate parameter information suggested by the terminal device for downlink transmission
  • Radio Resource Control Radio Resource Control, RRC
  • RRC-TransactionIdentifier Radio Resource Control
  • the second indication information includes at least one bit; wherein, when the value of the first bit in the at least one bit is a first value, it indicates that the candidate cell corresponding to the first bit is the target cell, and when the value of the first bit is a second value, it indicates that the candidate cell corresponding to the first bit is not the target cell.
  • the value of the first value is 0, and the value of the second value is 1.
  • the value of the first value is 1, so The value of the second value is 0.
  • the number of the at least one bit is the same as the number of candidate cells preconfigured by the network device for the terminal device.
  • the second indication information may include an identifier of the target cell.
  • the third indication information may include information for determining the parameter information.
  • the third indication information may include parameter information.
  • the RRC transmission identifier may be used to indicate downlink transmission of the first indication information response.
  • the parameter information includes at least one of the following information: beam, transmission configuration indication (Transmission configuration indication, TCI) status, synchronization signal and/or physical broadcast channel block (Synchronization Signal/PBCH Block, SSB ), Channel State Information Reference Signal (CSI-RS), Sounding Reference Signal (SRS).
  • transmission configuration indication Transmission configuration indication, TCI
  • TCI Transmission configuration indication
  • SSB synchronization signal and/or physical broadcast channel block
  • CSI-RS Channel State Information Reference Signal
  • SRS Sounding Reference Signal
  • the parameter information may include information such as beams for downlink transmission suggested by the terminal device, TCI status, SSB, CSI-RS, and SRS.
  • the parameter information may also include other parameter information for downlink transmission, for example, the parameter information may also include other reference signals for downlink transmission, etc., and may even include Transferred resource information, etc.
  • the first indication information when the first indication information is sent through layer 1 or through layer 2, the first indication information is carried in uplink control information (Uplink Control Information, UCI) or media access control (Media Access Control , MAC) control element (Control Element, CE) signaling.
  • uplink control information Uplink Control Information, UCI
  • media access control Media Access Control , MAC
  • Control Element, CE Control Element
  • the first indication information may be sent through the MAC layer in layer 2 or the physical layer in layer 1.
  • the first indication information may also be sent through other layers in layer 2, which is not specifically limited in this application.
  • the RRC reconfiguration complete message is transmitted through signaling radio bearers (signaling radio bearers, SRB) 1 or SRB3.
  • the terminal device has completed the handover of the serving cell, including:
  • the terminal device has successfully completed the random access procedure.
  • the terminal device has completed the random access procedure, it may be determined that the terminal device has completed switching of the serving cell.
  • the fact that the terminal device has completed the random access process may be used as a judgment condition that the terminal device has completed the handover of the serving cell.
  • the MAC entity when the random access procedure of the L1/L2 handover is successfully completed, the MAC entity should indicate that the upper layer random access procedure is successfully completed. (Upon successful completion of the Random Access procedure initiated for L1/L2 handover, the MAC entity shall indicate the successful completion of the Random Access procedure to the upper layers.)
  • the terminal device when the terminal device is in the asynchronous state, the terminal device has completed switching of the serving cell, including: the terminal device has successfully completed a random access procedure.
  • the terminal device being in an asynchronous state means that the terminal device is in a state where it has not acquired uplink synchronization and needs to acquire uplink synchronization.
  • the terminal device being in an asynchronous state means that the terminal device is in a state where a random access procedure needs to be performed.
  • the terminal device being in an asynchronous state means that the terminal device is in a state that needs to acquire uplink synchronization through a random access procedure.
  • the successful completion of the random access procedure includes:
  • the terminal device has successfully completed random access conflict resolution.
  • the terminal device in the case that the terminal device has successfully completed the random access conflict resolution, it may be determined that the terminal device has completed switching of the serving cell.
  • the successful completion of the random access conflict resolution by the terminal device may be used as a judgment condition that the terminal device has completed the handover of the serving cell.
  • the terminal device has completed the handover of the serving cell, including: at least one of the following:
  • the terminal device receives a physical downlink control channel (Physical Downlink Control Channel, PDCCH) sent by the target cell;
  • a physical downlink control channel Physical Downlink Control Channel, PDCCH
  • the terminal device receives a downlink message for contention conflict resolution
  • the terminal device receives uplink resources scheduled by the PDCCH.
  • the terminal device when the terminal device receives the PDCCH sent by the target cell, and/or the terminal device receives a contention conflict resolution downlink message, and/or the terminal device receives an uplink resource scheduled by the PDCCH, it may It is determined that the terminal device has completed switching of the serving cell.
  • the terminal device when the terminal device is in a synchronous state, the terminal device has completed switching of the serving cell, including: at least one of the following:
  • the terminal device receives the PDCCH sent by the target cell
  • the terminal device receives a downlink message for contention conflict resolution
  • the terminal device receives uplink resources scheduled by the PDCCH.
  • the terminal device being in a synchronous state means that the terminal device is in a state of having acquired uplink synchronization.
  • the terminal device being in a synchronous state refers to a state in which the terminal device can perform uplink transmission without performing a random access procedure.
  • the terminal device being in a synchronous state means that the cell handover process performed by the terminal is a random access channel-less (RACH-LESS) handover process.
  • the handover process without a random access channel means that during the handover process, when the terminal equipment starts to transmit in the target cell for the first time, the random access process is not performed in the handover target cell.
  • the downlink message includes a UE Contention Resolution Identity MAC CE (UE Contention Resolution Identity MAC CE).
  • UE Contention Resolution Identity MAC CE UE Contention Resolution Identity MAC CE
  • the terminal competition resolution identifier MAC CE can be carried in message 4 (Msg 4), that is, in the case of message 4 decoding is correct, if the terminal competition resolution identifier MAC CE is resolved, and its content is the same as the sent If the identity of the terminal equipment carried in the message 3 (Msg 3) is consistent, it is considered that the random access is successful.
  • the method 400 may also include:
  • the terminal device When the terminal device satisfies at least one of the following conditions, the terminal device is triggered to determine whether the terminal device has completed switching of the serving cell:
  • the terminal device receives a switching command
  • the terminal device has applied the configuration sent by the target cell
  • the handover of the terminal device to the target cell has been triggered.
  • the terminal device receiving the handover command may refer to the terminal device receiving a handover command sent by a network device serving the source cell.
  • At least one of the terminal device receiving a handover command, the terminal device having applied the configuration sent by the target cell, and triggering the terminal device to switch to the target cell may be determined as the terminal device A trigger condition of whether the terminal device has completed the handover of the serving cell.
  • the configuration sent by the target cell includes at least one of the following configurations:
  • Radio Link Control (RLC) configuration RLC
  • Media Access Control (MAC) configuration RLC
  • PHY physical layer configuration
  • the configuration sent by the terminal device using the target cell may also be based on other configurations involved in layer 1 or layer 2 cell handover, which is not specifically limited in this application.
  • the triggered handover of the terminal device to the target cell includes: triggering the handover of the terminal device to the target cell by a configured handover condition, and/or, triggering the handover of the terminal device to the target cell by the handover
  • the command triggers the terminal device to switch to the target cell.
  • whether the handover condition configured by the network device triggers the handover of the terminal device to the target cell or the handover command sent by the network device triggers the handover of the terminal device to the target cell it can be understood that the handover of the terminal device to the target cell is triggered.
  • the terminal device is handed over to the target cell.
  • the handover condition may be configured by a network device serving the source cell.
  • the configured handover condition triggers the terminal device to switch to the target cell, which may be understood as triggering the terminal device to autonomously switch to the target cell.
  • the method 400 may also include:
  • the configuration information is used to configure at least one candidate cell
  • the configuration information may be carried in RRC signaling or other signaling.
  • the terminal device receives the configuration information sent by the network device serving the source cell, and switches the serving cell of the terminal device to the target cell based on the at least one candidate cell.
  • the configuration information includes measurement reporting configuration; the terminal device reports the measurement result of the at least one candidate cell based on the measurement reporting configuration; receives a handover command; in response to the handover command, the terminal device The serving cell is handed over to the target cell.
  • the handover command may be sent by a network device serving the source cell.
  • the terminal device when it can obtain the measurement report configuration configured by the network device serving the source cell, it may report the measurement result of the at least one candidate cell to the network device serving the source cell based on the measurement report configuration, serving After receiving the measurement result of the at least one candidate cell, the network equipment of the source cell may determine whether to execute the handover, and if it is determined to execute the handover, send a switching command to the terminal equipment to instruct the terminal equipment to use its serving cell Switch to the target cell.
  • the configuration information includes the configuration of handover conditions; when the terminal device has a first candidate cell that satisfies the handover condition in the at least one candidate cell, the terminal device determines the first candidate cell as the handover condition. the target cell; switching the serving cell of the terminal device to the target cell.
  • the terminal device when it can acquire the configuration of the switching condition configured by the network device serving the source cell, it may autonomously switch the serving cell of the terminal device based on the switching condition. For example, when the first candidate cell in the at least one candidate cell satisfies the switching condition, the terminal device may be triggered to switch the serving cell of the terminal device to the first candidate cell, that is, the terminal The device uses the first candidate cell as a target cell to perform cell handover.
  • the switching command is carried in MAC CE or downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • the handover command may be sent through the MAC layer in layer 2 or the physical layer in layer 1 .
  • the handover command may also be generated through the RRC layer, which is not specifically limited in the present application.
  • FIG. 5 is a schematic flowchart of a wireless communication method 500 provided by an embodiment of the present application.
  • the method 500 may include:
  • the serving cell sends configuration information to the terminal device, where the configuration information is used to configure at least one candidate cell.
  • the configuration information includes at least one of the following: configuration information of the at least one candidate cell, configuration of handover conditions for triggering handover by the terminal, and measurement report configuration.
  • the terminal device performs measurement based on the measurement reporting configuration and reports the measurement result of the at least one candidate cell to the serving cell.
  • the serving cell sends a handover command to the terminal device based on the measurement result reported by the terminal device.
  • the switching command may be carried in L1 and/or L2 signaling.
  • it can be carried in MAC CE or DCI.
  • the terminal device If the terminal device triggers handover autonomously, the terminal device monitors at least one configured candidate cell based on the configured handover condition, and when a certain candidate cell satisfies the handover condition, the terminal selects the candidate cell that satisfies the handover condition Perform cell handover as the target cell.
  • the terminal device switches the serving cell of the terminal device to the target cell.
  • the terminal device After the terminal device completes the handover of the serving cell, it sends first indication information to the serving cell, where the first indication information is used to indicate that the serving cell of the terminal device has completed the handover.
  • Fig. 5 is only an example of the present application, and should not be construed as a limitation to the present application.
  • the serving cell is the source cell, and after the cell switching is performed, its serving cell is the target cell; in this application, the network equipment serving the source cell and the network equipment serving the target cell are The same network device may also be different network devices, which is not specifically limited in this application.
  • the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application.
  • the implementation of the examples constitutes no limitation.
  • the terms “downlink” and “uplink” are used to indicate the transmission direction of signals or data, wherein “downlink” is used to indicate that the transmission direction of signals or data is from the station to the user equipment in the cell For the first direction, “uplink” is used to indicate that the signal or data transmission direction is the second direction from the user equipment in the cell to the station, for example, “downlink signal” indicates that the signal transmission direction is the first direction.
  • the term "and/or" is only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
  • Fig. 6 is a schematic block diagram of a terminal device 600 according to an embodiment of the present application.
  • the terminal device 600 may include:
  • a sending unit 610 configured to:
  • the radio resource control RRC layer of the terminal device through the medium access control MAC layer of the terminal device, so as to trigger the RRC layer to send an RRC reconfiguration complete message to the network device, wherein the first A piece of indication information is used to indicate that the terminal device has completed the handover of the serving cell; or
  • the first indication information when the first indication information is sent through the layer 1 or through the layer 2, the first indication information includes at least one of the following information:
  • second indication information where the second indication information is used to indicate the identity of the target cell
  • third indication information where the third indication information is used to indicate parameter information suggested by the terminal device for downlink transmission
  • Radio resource control RRC transmission identifier RRC-TransactionIdentifier Radio resource control
  • the parameter information includes at least one of the following information: beam, transmission configuration indication TCI state, synchronization signal and/or physical broadcast channel block SSB, channel state information reference signal CSI-RS, sounding reference signal SRS.
  • the first indication information when the first indication information is sent through layer 1 or layer 2, the first indication information is carried in uplink control information UCI or medium access control element MAC CE signaling.
  • the RRC reconfiguration complete message is transmitted over a signaling radio bearer SRB1 or SRB3.
  • the terminal device has completed the handover of the serving cell, including:
  • the terminal device has successfully completed the random access procedure.
  • the successful completion of the random access procedure includes:
  • the terminal device has successfully completed random access conflict resolution.
  • the terminal device has completed the handover of the serving cell, including: at least one of the following:
  • the terminal device receives the physical downlink control channel PDCCH sent by the target cell;
  • the terminal device receives a downlink message for contention conflict resolution
  • the terminal device receives uplink resources scheduled by the PDCCH.
  • the downlink message includes a terminal contention resolution identifier MAC CE.
  • the sending unit 610 is further configured to:
  • the terminal device When the terminal device satisfies at least one of the following conditions, the terminal device is triggered to determine whether the terminal device has completed switching of the serving cell:
  • the terminal device receives a switching command
  • the terminal device has applied the configuration sent by the target cell
  • the handover of the terminal device to the target cell has been triggered.
  • the configuration sent by the target cell includes at least one of the following configurations:
  • the radio link layer controls the configuration of the RLC, the configuration of the media access control MAC, and the configuration of the physical PHY layer.
  • the triggered handover of the terminal device to the target cell includes: triggering the handover of the terminal device to the target cell by a configured handover condition, and/or, triggering the handover of the terminal device to the target cell by the handover The command triggers the terminal device to switch to the target cell.
  • the sending unit 610 is further configured to:
  • the configuration information is used to configure at least one candidate cell
  • the configuration information includes measurement reporting configuration; wherein, the sending unit 610 is specifically configured to:
  • the configuration information includes configuration of handover conditions; wherein, the sending unit 610 is specifically configured to:
  • the switching command is carried in a medium access control element MAC CE or downlink control information DCI.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the terminal device 600 shown in FIG. 6 may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and/or functions of each unit in the terminal device 600 are for realizing the implementation of the present application.
  • the corresponding processes in each method provided by the example are not repeated here.
  • Fig. 7 is a schematic block diagram of a network device 700 according to an embodiment of the present application.
  • the network device 700 may include:
  • the receiving unit 710 is configured to receive, through Layer 1 or Layer 2 of the network device, first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device has completed switching of serving cells.
  • the first indication information includes at least one of the following:
  • second indication information where the second indication information is used to indicate the identity of the target cell
  • third indication information where the third indication information is used to indicate parameter information suggested by the terminal device for downlink transmission
  • Radio resource control RRC transmission identifier RRC-TransactionIdentifier Radio resource control
  • the parameter information includes at least one of the following information: beam, transmission configuration indication TCI state, synchronization signal and/or physical broadcast channel block SSB, channel state information reference signal CSI-RS, sounding reference signal SRS.
  • the first indication information is carried in uplink control information UCI or medium access control control element MAC CE signaling.
  • the receiving unit 710 can also be used for:
  • the receiving unit 710 can also be used for:
  • the configuration information includes a configuration of a handover condition; wherein the handover condition is a condition for triggering the terminal device to switch the serving cell of the terminal device.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the network device 700 shown in FIG. 7 may correspond to the corresponding subject in the method 300 of the embodiment of the present application, and the aforementioned and other operations and/or functions of each unit in the network device 700 are for realizing the implementation of the present application.
  • the corresponding processes in each method provided by the example are not repeated here.
  • each step of the method embodiment in the embodiment of the present application can be completed by an integrated logic circuit of the hardware in the processor and/or instructions in the form of software, and the steps of the method disclosed in the embodiment of the present application can be directly embodied as hardware
  • the execution of the decoding processor is completed, or the combination of hardware and software modules in the decoding processor is used to complete the execution.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.
  • both the sending unit 610 and the receiving unit 710 mentioned above can be implemented by a transceiver.
  • FIG. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 may include a processor 710 .
  • the processor 710 can invoke and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the communication device 800 may further include a memory 720 .
  • the memory 720 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 710 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the communication device 800 may further include a transceiver 730 .
  • the processor 710 can control the transceiver 730 to communicate with other devices, specifically, can send information or data to other devices, or receive information or data sent by other devices.
  • Transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include antennas, and the number of antennas may be one or more.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • the communication device 800 can be the terminal device in the embodiment of the present application, and the communication device 800 can implement the corresponding processes implemented by the terminal device in the various methods of the embodiment of the present application, that is, the terminal device in the embodiment of the present application
  • the communication device 800 may correspond to the terminal device 600 in the embodiment of the present application, and may correspond to a corresponding subject in performing the method 200 according to the embodiment of the present application. For the sake of brevity, details are not repeated here.
  • the communication device 800 may be the network device of the embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application.
  • the communication device 800 in the embodiment of the present application may correspond to the network device 700 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 300 according to the embodiment of the present application.
  • the communication device 800 in the embodiment of the present application may correspond to the network device 700 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 300 according to the embodiment of the present application.
  • no further repeat may be provided.
  • the embodiment of the present application also provides a chip.
  • the chip may be an integrated circuit chip, which has signal processing capabilities, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the chip can also be called system-on-chip, system-on-chip, system-on-chip or system-on-chip, etc.
  • the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • FIG. 9 is a schematic structural diagram of a chip 900 according to an embodiment of the present application.
  • the chip 900 includes a processor 810 .
  • the processor 810 can call and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the chip 900 may further include a memory 820 .
  • the processor 810 can call and run a computer program from the memory 820, so as to implement the method in the embodiment of the present application.
  • the memory 820 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 810 .
  • the memory 820 may be an independent device independent of the processor 810 , or may be integrated in the processor 810 .
  • the chip 900 may further include an input interface 830 .
  • the processor 810 may control the input interface 830 to communicate with other devices or chips, specifically, may obtain information or data sent by other devices or chips.
  • the chip 900 may further include an output interface 840 .
  • the processor 810 can control the output interface 840 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip 900 can be applied to the network device in the embodiment of the present application, and the chip can realize the corresponding processes implemented by the network device in the various methods of the embodiments of the present application, and can also realize the various methods of the embodiments of the present application For the sake of brevity, the corresponding process implemented by the terminal device in , will not be repeated here.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • Processors mentioned above may include, but are not limited to:
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor may be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module may 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 erasable programmable memory, register.
  • 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 storage mentioned above includes but is not limited to:
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium stores one or more programs, and the one or more programs include instructions.
  • the portable electronic device can perform the wireless communication provided by the application. communication method.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application. For brevity, here No longer.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including a computer program.
  • the computer program product can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the repeat can be applied to the computer program product in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, for It is concise and will not be repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program When the computer program is executed by the computer, the computer can execute the wireless communication method provided in this application.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program When the computer program is run on the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , which will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program When the computer program is run on the computer, the computer executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device For the sake of brevity, the corresponding process will not be repeated here.
  • An embodiment of the present application also provides a communication system, which may include the above-mentioned terminal device and network device to form a communication system 100 as shown in FIG. 1 , which is not repeated here for brevity.
  • a communication system which may include the above-mentioned terminal device and network device to form a communication system 100 as shown in FIG. 1 , which is not repeated here for brevity.
  • system and the like in this document may also be referred to as “network management architecture” or “network system”.
  • the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art 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 to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.
  • the units/modules/components described above as separate/display components may or may not be physically separated, that is, they may be located in one place, or may also be distributed to multiple network units. Part or all of the units/modules/components can be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms .

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Abstract

本申请实施例提供了一种无线通信方法、终端设备以及网络设备，所述方法包括：通过所述终端设备的媒体接入控制MAC层向所述终端设备的无线资源控制RRC层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。本申请提供的方法不仅有利于所述终端设备基于底层实现对所述终端设备的服务小区进行切换，还能够降低小区切换的时延。

Description

无线通信方法、终端设备以及网络设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及无线通信方法、终端设备以及网络设备。
背景技术
新空口(New Radio，NR)系统支持连接态UE的切换过程。与长期演进(Long Term Evolution，LTE)系统相似，当正在使用网络服务的用户从一个小区移动到另一个小区，或由于无线传输业务负荷量调整、激活操作维护、设备故障等原因，为了保证通信的连续性和服务的质量，系统要将该用户与原小区的通信链路转移到新的小区上时，可以通过执行小区切换流程来实现。
但是，截止目前，小区切换流程都是基于终端测量上报以及网络的配置实现的，而终端的测量上报和网络的配置必然会涉及多条信令的交互，使得小区切换存在较大的时延，因此，本领域亟需一种无线通信方法，以降低切换时延。
发明内容
本申请实施例提供了一种无线通信方法、终端设备以及网络设备，不仅有利于所述终端设备基于底层实现对所述终端设备的服务小区进行切换，还能够降低小区切换的时延。
第一方面，本申请提供了一种无线通信方法，包括：
通过所述终端设备的媒体接入控制MAC层向所述终端设备的无线资源控制RRC层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或
通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
第二方面，本申请提供了一种无线通信方法，包括：
通过所述网络设备的层1或层2接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述终端设备已完成服务小区的切换。
第三方面，本申请提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。具体地，所述终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
在一种实现方式中，该终端设备可包括处理单元，该处理单元用于执行与信息处理相关的功能。例如，该处理单元可以为处理器。
在一种实现方式中，该终端设备可包括发送单元和/或接收单元。该发送单元用于执行与发送相关的功能，该接收单元用于执行与接收相关的功能。例如，该发送单元可以为发射机或发射器，该接收单元可以为接收机或接收器。再如，该终端设备为通信芯片，该发送单元可以为该通信芯片的输入电路或者接口，该发送单元可以为该通信芯片的输出电路或者接口。
第四方面，本申请提供了一种网络设备，用于执行上述第二方面或其各实现方式中的方法。具体地，所述网络设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
在一种实现方式中，该网络设备可包括处理单元，该处理单元用于执行与信息处理相关的功能。例如，该处理单元可以为处理器。
在一种实现方式中，该网络设备可包括发送单元和/或接收单元。该发送单元用于执行与发送相关的功能，该接收单元用于执行与接收相关的功能。例如，该发送单元可以为发射机或发射器，该接收单元可以为接收机或接收器。再如，该网络设备为通信芯片，该接收单元可以为该通信芯片的输入电路或者接口，该发送单元可以为该通信芯片的输出电路或者接口。
第五方面，本申请提供了一种终端设备，包括处理器和存储器。所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行上述第一方面或其各实现方式中的方法。
在一种实现方式中，该处理器为一个或多个，该存储器为一个或多个。
在一种实现方式中，该存储器可以与该处理器集成在一起，或者该存储器与处理器分离设置。
在一种实现方式中，该终端设备还包括发射机(发射器)和接收机(接收器)。
第六方面，本申请提供了一种网络设备，包括处理器和存储器。所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行上述第二方面或其各实现方式中的方法。
在一种实现方式中，该处理器为一个或多个，该存储器为一个或多个。
在一种实现方式中，该存储器可以与该处理器集成在一起，或者该存储器与处理器分离设置。
在一种实现方式中，该网络设备还包括发射机(发射器)和接收机(接收器)。
第七方面，本申请提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。具体地，所述芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面，本申请提供了一种计算机可读存储介质，用于存储计算机程序，所述计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面，本申请提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面，本申请提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于以上方案，考虑到基于底层的切换(例如基于层1和/或层2的切换)能够有效降低小区切换的时延，本申请通过所述终端设备的MAC层向所述终端设备的RRC层上报用于指示所述终端设备已完成服务小区的切换的第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，或通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息，能够保证所述终端设备在完成基于底层的小区切换成功后，能够向网络设备成功发送所述第一指示信息，不仅有利于所述终端设备基于底层实现对所述终端设备的服务小区进行切换，还能够降低小区切换的时延。
附图说明
图1是本申请实施例的系统框架的示例。
图2是本申请实施例提供的小区切换方法的示意性流程图。
图3是本申请实施例提供的条件切换的示意性流程图。
图4和图5是本申请实施例提供的无线通信方法的示意性流程图。
图6是本申请实施例提供的终端设备的示意性框图。
图7是本申请实施例提供的网络设备的示意性框图。
图8是本申请实施例提供的通信设备的示意性框图。
图9是本申请实施例提供的芯片的示意性框图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
图1是本申请实施例的系统框架100的示例。
如图1所示，通信系统100可以包括终端设备110和网络设备120。网络设备120可以通过空口与终端设备110通信。终端设备110和网络设备120之间支持多业务传输。
应理解，本申请实施例仅以通信系统100进行示例性说明，但本申请实施例不限定于此。也就是说，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时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、、物联网(Internet of Things，IoT)系统、窄带物联网(Narrow Band Internet of Things，NB-IoT)系统、增强的机器类型通信(enhanced Machine-Type Communications，eMTC)系统、5G通信系统(也称为新无线(New Radio，NR)通信系统)，或未来的通信系统等。
在图1所示的通信系统100中，网络设备120可以是与终端设备110通信的接入网设备。接入网设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备110(例如UE)进行通信。
网络设备120可以是长期演进(Long Term Evolution，LTE)系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是下一代无线接入网(Next Generation Radio Access Network，NG RAN)设备，或者是NR系统中的基站(gNB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备120可以为中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
终端设备110可以是任意终端设备，其包括但不限于与网络设备120或其它终端设备采用有线或者无线连接的终端设备。
例如，所述终端设备110可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、IoT 设备、卫星手持终端、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(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、5G网络中的终端设备或者未来演进网络中的终端设备等。
终端设备110可以用于设备到设备(Device to Device，D2D)的通信。
无线通信系统100还可以包括与基站进行通信的核心网设备130，该核心网设备130可以是5G核心网(5G Core，5GC)设备，例如，接入与移动性管理功能(Access and Mobility Management Function，AMF)，又例如，认证服务器功能(Authentication Server Function，AUSF)，又例如，用户面功能(User Plane Function，UPF)，又例如，会话管理功能(Session Management Function，SMF)。可选地，核心网络设备130也可以是LTE网络的分组核心演进(Evolved Packet Core，EPC)设备，例如，会话管理功能+核心网络的数据网关(Session Management Function+Core Packet Gateway，SMF+PGW-C)设备。应理解，SMF+PGW-C可以同时实现SMF和PGW-C所能实现的功能。在网络演进过程中，上述核心网设备也有可能叫其它名字，或者通过对核心网的功能进行划分形成新的网络实体，对此本申请实施例不做限制。
通信系统100中的各个功能单元之间还可以通过下一代网络(next generation，NG)接口建立连接实现通信。
例如，终端设备通过NR接口与接入网设备建立空口连接，用于传输用户面数据和控制面信令；终端设备可以通过NG接口1(简称N1)与AMF建立控制面信令连接；接入网设备例如下一代无线接入基站(gNB)，可以通过NG接口3(简称N3)与UPF建立用户面数据连接；接入网设备可以通过NG接口2(简称N2)与AMF建立控制面信令连接；UPF可以通过NG接口4(简称N4)与SMF建立控制面信令连接；UPF可以通过NG接口6(简称N6)与数据网络交互用户面数据；AMF可以通过NG接口11(简称N11)与SMF建立控制面信令连接；SMF可以通过NG接口7(简称N7)与PCF建立控制面信令连接。
图1示例性地示出了一个基站、一个核心网设备和两个终端设备，可选地，该无线通信系统100可以包括多个基站设备并且每个基站的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备均可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备120和终端设备110，网络设备120和终端设备110可以为上文所述的设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
还应理解，在本申请的实施例中提到的“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。还应理解，在本申请的实施例中提到的“预定义”或“预定义规则”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。还应理解，本申请实施例中，所述"协议"可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。还需要说明的是，本申请实施例中涉及的术语“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
当正在使用网络服务的用户从一个小区移动到另一个小区，或由于无线传输业务负荷量调整、激活操作维护、设备故障等原因，为了保证通信的连续性和服务的质量，系统要将该用户与原小区的通信链路转移到新的小区上，即执行切换过程。
以Xn接口切换过程为例，切换过程可分为以下三个阶段：
(1)切换准备阶段：包括测量控制和汇报，切换请求以及确认。在切换确认消息中包含目标小区生成的切换命令，源小区不允许对目标小区生成的切换命令进行任何修改，直接将切换命令转发给UE。
(2)切换执行阶段：UE在收到切换命令后立即执行切换过程，即UE断开源小区并与目标小区连接(如执行随机接入，发送RRC切换完成消息给目标基站等)；进一步的，进行序列号(SN)状态转移以及数据转发。
(3)切换完成阶段：目标小区与AMF和UPF执行路径切换(Path Switch)，并释放源基站的UE 上下文。
图2是本申请实施例提供的小区切换方法的示意性框图。
如图2所示，切换准备阶段(S201～S205)可以包括：
在S201中，源基站触发终端设备进行邻区测量，从而终端设备可以对邻区进行测量，并将测量结果上报给源基站。
在S202中，源基站对终端设备上报的测量结果进行评估，决定是否触发切换。
在S203中，若源基站决定触发切换，则可以向目标基站发送切换请求。
在S204中，目标基站接收到源基站发送的切换请求后，可以根据源基站携带的业务信息开始准入，并进行无线资源配置。
在S205中，目标基站向源基站发送切换请求确认消息，将在目标基站内的准入结果和无线资源配置信息返回给源基站。至此，切换准备阶段完成。
如图2所示，切换执行阶段(S206～S208)可以包括：
在S206中，源基站接收到目标基站的切换请求确认消息后，可以触发终端设备进行切换。
在S207中，源基站可以将缓冲数据、在传数据包、数据的系统序列号等转发给目标基站。并且，目标基站可以缓存从源基站接收的数据。
此外，终端设备可以断开与源基站的连接，与目标基站建立同步。
在S208中，终端设备同步到目标基站。至此，切换执行阶段完成。
如图2所示，切换完成阶段(S209～S212)可以包括：
在S209中，目标基站向移动性管理功能(Access and Mobility Management Function，AMF)发送路径切换请求。
在S210中，AMF接收到目标基站的路径切换请求后，与用户面功能(User Plane Function，UPF)执行路径切换，清除源基站用户面的路径标记。
在S211中，在路径切换完成之后，AMF可以向目标基站发送路径切换确认消息。
在S212中，目标基站向源基站发送终端设备上下文释放消息，通知源基站切换成功，并触发源基站释放终端设备上下文。至此，切换完成。
终端设备在收到切换命令后立即启动T304定时器，并开始下行同步到目标小区，获取目标小区MIB信息，然后发起随机接入。随机接入过程中允许多次前导码(preamble)重传直至随机接入成功。进一步地，如果T304定时器超时，说明切换失败，则所述终端设备可以直接触发RRC连接重建过程。
此外，对于某些特殊场景，比如UE高速移动或者高频条件下，需要频繁的进行切换。
为了避免了切换准备时间过长，进而避免导致UE要切换的时候已经过晚的问题，本申请提供了一种基于条件切换(Conditional handover)的小区切换方法，即为UE提前配置切换命令(HO command)。此外，对于高铁场景，由于UE的运行轨迹是特定的，因此，源基站可以提前把目标基站配给UE，并且在切换命令中包含用于触发UE进行小区切换的条件，当满足所配条件时，UE向目标基站发起接入请求。
图3是本申请实施例提供的条件切换300的示意性流程图。
如图3所示，所述条件切换300可包括：
S301，源基站接收源基站发送的测量配置，并将基于测量配置测量的测量结果上报给源基站。
S302，源基站和目标基站之间进行切换准备。
S303，源基站向UE发送切换命令，所述切换命令可包括用于触发UE进行小区切换的条件，当满足所配条件时，UE向目标基站发起接入请求。
S304，终端设备同步到目标基站，以完成小区切换。
需要说明的是，在进行条件切换时，可以支持在切换命令中配置多个目标小区。此时，UE可以基于所配置的条件(condition)判断接入哪个目标小区。
此外，通常情况下，小区切换流程都是基于终端测量上报以及网络的配置实现的，而终端的测量上报和网络的配置必然会涉及多条信令的交互，使得小区切换存在较大的时延，因此，本领域亟需一种无线通信方法，以降低切换时延。有鉴于此，本申请实施例提供了一种无线通信方法、终端设备以及网络设备，能够降低切换时延。
图4是本申请实施例提供的无线通信方法400的示意性流程图，所述无线通信方法400可以由终端设备和网络设备交互执行。图4中所示的终端设备可以是如图1所示的终端设备，图4中所示的网络设备可以是如图1所示的接入网设备。当然，相对小区切换来说，图4所示的网络设备也可以称为目标网络设备或目标基站。
如图4所示，所述方法400可包括：
S410，通过所述终端设备的媒体接入控制(Media Access Control，MAC)层向所述终端设备的无线资源控制(Radio Resource Control，RRC)层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
换言之，所述终端设备可以由底层向高层上报所述第一指示信息，进而触发高层向网络设备发送所述RRC重配置完成消息，或者所述终端设备可以通过底层向所述网络设备发送所述第一指示信息时，可以将所述第一指示信息携带在底层信令中。
示例性地，所述高层可以包括层3。
示例性地，所述层3用于传递控制消息。例如，所述层3可以包括互连网的协议(Internet Protocol，IP)层和无线资源控制(Radio Resource Control，RRC)层，以及非接入层(NAS)。
示例性地，所述底层可以包括层2和/或层1。
示例性地，所述层2用于提供信令消息的正确传输和接收，包括部分重复检测。例如，所述层2可包括分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层和媒体访问控制(Media Access Control，MAC)层等。
示例性地，层1用于提供基站和终端设备之间的传输和接收无线链路。例如，所述层1可包括物理层(Physical Layer)。
示例性地，所述终端设备可以由层2的MAC层向层3的RRC层上报所述第一指示信息，进而触发RRC层向网络设备发送所述RRC重配置完成消息，或者所述终端设备可以通过层1的物理层或层2的MAC层向所述网络设备发送所述第一指示信息时，可以将所述第一指示信息携带在层1发送的信令或层2发送的信令中。
示例性地，在基于层1或层2的小区切换完成后，通过所述终端设备的MAC层向所述终端设备的RRC层上报所述第一指示信息，以触发所述RRC层向网络设备发送所述RRC重配置完成消息；或在基于层1或层2的小区切换完成后，通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
示例性地，所述终端设备通过所述终端设备的MAC层向所述终端设备的RRC层上报所述第一指示信息，以触发所述RRC层向服务于目标小区的网络设备发送所述RRC重配置完成消息；或在基于层1或层2的小区切换完成后，通过所述终端设备的层1或层2向服务于所述目标小区的网络设备发送所述第一指示信息。
本实施例中，考虑到基于底层的切换(例如基于层1和/或层2的切换)能够有效降低小区切换的时延，本申请通过所述终端设备的MAC层向所述终端设备的RRC层上报用于指示所述终端设备已完成服务小区的切换的第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，或通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息，能够保证所述终端设备在完成基于底层的小区切换成功后，能够向网络设备成功发送所述第一指示信息，不仅有利于所述终端设备基于底层实现对所述终端设备的服务小区进行切换，还能够降低小区切换的时延。
应当理解，本申请中涉及的基于层1和/或层2的切换可以指由底层(例如个1和/或层2)信令触发的切换过程。例如网络设备预配置至少一个候选小区配置给终端设备，终端设备基于预配置的至少一个候选小区进行服务小区的切换。
还应当理解，本申请中涉及的终端设备已完成服务小区的切换，可以指终端设备已完成服务小区从源小区到目标小区的切换。其中，所述服务于目标小区的网络设备和服务于源小区的网络设备可以相同，也可以不同。此外，所述源小区和所述目标小区可以通过不同的小区标识来区分，还可以通过不同的传输接收点(Transmission Reception Point，TRP)区分，还可以用不同的参考信号集合来区分，还可以通过不同的资源区分，比如不同控制资源集(Control Resource Set，CORESET)或/控制资源集池(CORESET pool)，还可以通过不同的混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)进程区分，还可以通过不同的协议栈区分，例如服务数据适应协议(Service Data Adaptation Protocol，SDAP)层协议栈、分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层协议栈、无线链路层控制(Radio Link Control，RLC)层协议栈、媒体接入控制(Media Access Control，MAC)或物理层协议栈等，本申请对此不作具体限定。
在一些实施例中，所述第一指示信息通过所述层1或通过层2发送时，所述第一指示信息包括以下信息中的至少一项：
第二指示信息，所述第二指示信息用于指示目标小区的标识；
第三指示信息，所述第三指示信息用于指示所述终端设备建议的用于下行传输的参数信息；
无线资源控制(Radio Resource Control，RRC)传输标识(RRC-TransactionIdentifier)。
示例性地，所述第二指示信息包括至少一个比特位；其中，所述至少一个比特位中的第一比特位的取值为第一数值时，表示所述第一比特位对应的候选小区为所述目标小区，所述第一比特位的取值为第二数值时，表示所述第一比特位对应的候选小区不是所述目标小区。在一种实现方式中，所述第一数值的取值为0，且所述第二数值的取值为1，在另一种实现方式中，所述第一数值的取值为1，所述第二数值的取值为0。
示例性地，所述至少一个比特位的数量和网络设备为终端设备预配置的候选小区的数量相同。
示例性地，所述第二指示信息可以包括所述目标小区的标识。
示例性地，所述第三指示信息可以包括用于确定所述参数信息的信息。
示例性地，所述第三指示信息可以包括参数信息。
示例性地，所述RRC传输标识可用于指示所述第一指示信息响应的下行传输。
在一些实施例中，所述参数信息包括以下信息中的至少一项：波束、传输配置指示(Transmission configuration indication，TCI)状态、同步信号和/或物理广播信道块(Synchronization Signal/PBCH Block，SSB)、信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)、探测参考信号(Sounding Reference Signal，SRS)。
换言之，所述参数信息可包括用于指示所述终端设备建议的用于下行传输的波束、TCI状态、SSB、CSI-RS、SRS等信息。当然，在其他可替代实施例中，所述参数信息还可包括其他用于下行传输的参数信息，例如所述参数信息还可包括用于下行传输的其他参考信号等，甚至可以包括用于下行传输的资源信息等。
在一些实施例中，所述第一指示信息通过通过层1或通过层2发送时，所述第一指示信息携带在上行控制信息(Uplink Control Information，UCI)或媒体接入控制(Media Access Control，MAC)控制元素(Control Element，CE)信令中。
示例性地，所述第一指示信息可通过层2中的MAC层或层1中的物理层发送所述第一指示信息。
当然，在其他可替代实施例中，也可以通过层2中的其他层发送所述第一指示信息，本申请对此不作具体限定。
在一些实施例中，所述RRC重配置完成消息通过信令无线承载(signaling radio bearers，SRB)1或SRB3传输。
在一些实施例中，所述终端设备已完成服务小区的切换，包括：
所述终端设备已成功完成随机接入过程。
示例性地，在所述终端设备已完成随机接入过程的情况下，可确定所述终端设备已完成服务小区的切换。或者说，所述终端设备已完成随机接入过程可作为所述终端设备已完成服务小区的切换的判断条件。
示例性地，当L1/L2切换的随机接入过程成功完成后，MAC实体应指示上层随机接入过程成功完成。(Upon successful completion of the Random Access procedure initiated for L1/L2 handover,the MAC entity shall indicate the successful completion of the Random Access procedure to the upper layers.)
示例性地，所述终端设备处于非同步状态时，所述终端设备已完成服务小区的切换，包括：所述终端设备已成功完成随机接入过程。
示例性地，所述终端设备处于非同步状态指所述终端设备处于未获取上行同步、且需要获取上行同步的状态。
示例性地，所述终端设备处于非同步状态指所述终端设备处于需要执行随机接入过程的状态。
示例性地，所述终端设备处于非同步状态指所述终端设备处于需要通过随机接入过程获取上行同步的状态。
在一些实施例中，所述已成功完成随机接入过程，包括：
所述终端设备已成功完成随机接入冲突解决。
示例性地，在所述终端设备已成功完成随机接入冲突解决的情况下，可确定所述终端设备已完成服务小区的切换。或者说，所述终端设备已成功完成随机接入冲突解决可作为所述终端设备已完成服务小区的切换的判断条件。
在一些实施例中，所述终端设备已完成服务小区的切换，包括：以下至少之一：
所述终端设备收到目标小区发送的物理下行控制信道(Physical Downlink Control Channel，PDCCH)；
所述终端设备收到竞争冲突解决的下行消息；
所述终端设备收到PDCCH调度的上行资源。
换言之，在所述终端设备收到目标小区发送的PDCCH、和/或所述终端设备收到竞争冲突解决的下 行消息、和/或所述终端设备收到PDCCH调度的上行资源的情况下，可确定所述终端设备已完成服务小区的切换。
示例性地，所述终端设备处于同步状态时，所述终端设备已完成服务小区的切换，包括：以下至少之一：
所述终端设备收到目标小区发送的PDCCH；
所述终端设备收到竞争冲突解决的下行消息；
所述终端设备收到PDCCH调度的上行资源。
示例性地，所述终端设备处于同步状态指所述终端设备处于已获取上行同步的状态。
示例性地，所述终端设备处于同步状态指所述终端设备处于无需执行执行随机接入过程，即可进行上行传输的状态。
示例性地，所述终端设备处于同步状态指所述终端执行的小区切换过程为无随机接入信道(RACH-LESS)的切换过程。无随机接入信道的切换过程指：在切换过程中，当终端设备在目标小区中首次开始传输时，在切换的目标小区中不执行随机接入过程。
在一些实施例中，所述下行消息包括终端竞争解决标识MAC CE(UE Contention Resolution Identity MAC CE)。
示例性地，所述终端竞争解决标识MAC CE可以携带在消息4(Msg 4)中，即在消息4译码正确的情况下，如果解析到终端竞争解决标识MAC CE，且其内容与发送的消息3(Msg 3)中携带的终端设备的标识一致，则认为随机接入成功。
在一些实施例中，所述方法400还可包括：
在所述终端设备满足以下中的至少一项的情况下，触发所述终端设备确定所述终端设备是否已完成服务小区的切换：
所述终端设备接收到切换命令；
所述终端设备已应用目标小区发送的配置；
已触发所述终端设备切换到所述目标小区。
示例性地，所述终端设备接收到切换命令可以指所述终端设备接收到服务于源小区的网络设备发送切换命令。
示例性地，所述终端设备接收到切换命令、所述终端设备已应用目标小区发送的配置、已触发所述终端设备切换到所述目标小区中的至少一项，可作为所述终端设备确定所述终端设备是否已完成服务小区的切换的触发条件。
在一些实施例中，所述目标小区发送的配置包括以下配置中的至少一项：
无线链路层控制(Radio Link Control，RLC)的配置、媒体接入控制(Media Access Control，MAC)的配置、物理(PHY)层的配置。
当然，所述终端设备已应用目标小区发送的配置也可以是基于层1或层2的小区切换所涉及到的其他配置，本申请对此不作具体限定。
在一些实施例中，所述已触发所述终端设备切换到所述目标小区，包括：已由配置的切换条件触发所述终端设备切换到所述目标小区，和/或，已由所述切换命令触发所述终端设备切换到所述目标小区。换言之，不管是由网络设备配置的切换条件触发所述终端设备切换到所述目标小区，还是由网络设备发送的切换命令触发所述终端设备切换到所述目标小区，均可理解为已触发所述终端设备切换到所述目标小区。
示例性地，所述切换条件可以由服务于源小区的网络设备配置。
示例性地，已由配置的切换条件触发所述终端设备切换到所述目标小区，可以理解为已触发终端设备自主切换到所述目标小区。
在一些实施例中，所述方法400还可包括：
接收配置信息，所述配置信息用于配置至少一个候选小区；
基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区，所述至少一个候选小区包括所述目标小区。
示例性地，所述配置信息可以携带在RRC信令或其他信令中。
示例性地，所述终端设备接收服务于源小区的网络设备发送的所述配置信息，并基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区。
在一些实施例中，所述配置信息包括测量上报配置；所述终端设备基于测量上报配置上报所述至少一个候选小区的测量结果；接收切换命令；响应于所述切换命令，将所述终端设备的服务小区切换至所述目标小区。
示例性地，所述切换命令可以由服务于源小区的网络设备发送。
示例性地，终端设备能够获取服务于源小区的网络设备配置的测量上报配置时，可基于所述测量上报配置向服务于源小区的网络设备上报所述至少一个候选小区的测量结果，服务于源小区的网络设备收到所述至少一个候选小区的测量结果后，可确定是否执行切换，并在确定执行切换的情况下，向终端设备发送切命令，以指示所述终端设备将其服务小区切换至目标小区。
在一些实施例中，所述配置信息包括切换条件的配置；所述终端设备在所述至少一个候选小区存在满足所述切换条件的第一候选小区时，将所述第一候选小区确定为所述目标小区；将所述终端设备的服务小区，切换至所述目标小区。
示例性地，终端设备能够获取服务于源小区的网络设备配置的切换条件的配置时，可基于所述切换条件自主切换所述终端设备的服务小区。例如，在所述至少一个候选小区中的第一候选小区在满足所述切换条件时，可以触发所述终端设备将所述终端设备的服务小区切换至所述第一候选小区，即所述终端设备将所述第一候选小区作为目标小区进行小区切换。
在一些实施例中，所述切换命令携带在MAC CE或下行控制信息(Downlink Control Information，DCI)中。
换言之，可以通过层2中的MAC层或层1中的物理层发送所述切换命令。当然，在其他可替代实施例中，也可以通过RRC层发生所述切换命令，本申请对此不作具体限定。
图5是本申请实施例提供的无线通信方法500的示意性流程图。
如图5所示，所述方法500可包括：
S501，服务小区向终端设备发送配置信息，所述配置信息用于配置至少一个候选小区。
可选的，所述配置信息包括以下中的至少一项：所述至少一个候选小区的配置信息、用于终端触发切换的切换条件的配置、测量上报配置。
S502a，终端设备基于测量上报配置执行测量并向服务小区上报所述至少一个候选小区的测量结果。
S503a，服务小区基于终端设备上报的测量结果向终端设备发送切换命令。
可选的，所述切换命令可以携带在L1和/或L2信令中。例如可以携带在MAC CE或者DCI中。
S502b，若终端设备自主触发切换，所述终端设备基于配置的切换条件对配置的至少一个候选小区进行监测，当某一个候选小区满足切换条件时，所述终端将满足所述切换条件的候选小区作为目标小区进行小区切换。
S504，不管是由服务小区配置的切换条件触发所述终端设备切换到所述目标小区，还是由服务小区发送的切换命令触发所述终端设备切换到所述目标小区，在触发终端设备执行小区切换后，所述终端设备将所述终端设备的服务小区切换到所述目标小区。
S505，终端设备完成服务小区的切换后，向服务小区发送第一指示信息，所述第一指示信息用于指示所述终端设备的服务小区已完成切换。
应理解，终端设备向服务小区发送所述第一指示信息的方案可参考方法400中的描述，为避免重复，此处不再赘述。
还应理解，图5仅为本申请的示例，不应理解为对本申请的限制。
例如，终端设备在进行小区切换前，其服务小区为源小区，在执行小区切换后，其服务小区为目标小区；本申请中，服务于源小区的网络设备和服务于目标小区的网络设备为同一网络设备，也可以为不同的网络设备，本申请对此不作具体限定。
以上结合附图详细描述了本申请的优选实施方式，但是，本申请并不限于上述实施方式中的具体细节，在本申请的技术构思范围内，可以对本申请的技术方案进行多种简单变型，这些简单变型均属于本申请的保护范围。例如，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本申请对各种可能的组合方式不再另行说明。又例如，本申请的各种不同的实施方式之间也可以进行任意组合，只要其不违背本申请的思想，其同样应当视为本申请所公开的内容。
还应理解，在本申请的各种方法实施例中，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。此外，在本申请实施例中，术语“下行”和“上行”用于表示信号或数据的传输方向，其中，“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向，“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向，例如，“下行信号”表示该信号的传输方向为第一方向。另外，本申请实施例中，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。具体地，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。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
上文结合图1至图5，详细描述了本申请的方法实施例，下文结合图6至图9，详细描述本申请的装置实施例。
图6是本申请实施例的终端设备600的示意性框图。
如图6所示，所述终端设备600可包括：
发送单元610，用于：
通过所述终端设备的媒体接入控制MAC层向所述终端设备的无线资源控制RRC层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或
通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
在一些实施例中，所述第一指示信息通过所述层1或通过层2发送时，所述第一指示信息包括以下信息中的至少一项：
第二指示信息，所述第二指示信息用于指示目标小区的标识；
第三指示信息，所述第三指示信息用于指示所述终端设备建议的用于下行传输的参数信息；
无线资源控制RRC传输标识RRC-TransactionIdentifier。
在一些实施例中，所述参数信息包括以下信息中的至少一项：波束、传输配置指示TCI状态、同步信号和/或物理广播信道块SSB、信道状态信息参考信号CSI-RS、探测参考信号SRS。
在一些实施例中，所述第一指示信息通过通过层1或通过层2发送时，所述第一指示信息携带在上行控制信息UCI或媒体接入控制控制元素MAC CE信令中。
在一些实施例中，所述RRC重配置完成消息通过信令无线承载SRB1或SRB3传输。
在一些实施例中，所述终端设备已完成服务小区的切换，包括：
所述终端设备已成功完成随机接入过程。
在一些实施例中，所述已成功完成随机接入过程，包括：
所述终端设备已成功完成随机接入冲突解决。
在一些实施例中，所述终端设备已完成服务小区的切换，包括：以下至少之一：
所述终端设备收到目标小区发送的物理下行控制信道PDCCH；
所述终端设备收到竞争冲突解决的下行消息；
所述终端设备收到PDCCH调度的上行资源。
在一些实施例中，所述下行消息包括终端竞争解决标识媒体接入控制控制元素MAC CE。
在一些实施例中，所述发送单元610还用于：
在所述终端设备满足以下中的至少一项的情况下，触发所述终端设备确定所述终端设备是否已完成服务小区的切换：
所述终端设备接收到切换命令；
所述终端设备已应用目标小区发送的配置；
已触发所述终端设备切换到所述目标小区。
在一些实施例中，所述目标小区发送的配置包括以下配置中的至少一项：
无线链路层控制RLC的配置、媒体接入控制MAC的配置、物理PHY层的配置。
在一些实施例中，所述已触发所述终端设备切换到所述目标小区，包括：已由配置的切换条件触发所述终端设备切换到所述目标小区，和/或，已由所述切换命令触发所述终端设备切换到所述目标小区。
在一些实施例中，所述发送单元610还用于：
接收配置信息，所述配置信息用于配置至少一个候选小区；
基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区，所述至少一个候选小区包括所述目标小区。
在一些实施例中，所述配置信息包括测量上报配置；其中，所述发送单元610具体用于：
基于测量上报配置上报所述至少一个候选小区的测量结果；
接收切换命令；
响应于所述切换命令，将所述终端设备的服务小区切换至所述目标小区。
在一些实施例中，所述配置信息包括切换条件的配置；其中，所述发送单元610具体用于：
在所述至少一个候选小区存在满足所述切换条件的第一候选小区时，将所述第一候选小区确定为所述目标小区；
将所述终端设备的服务小区，切换至所述目标小区。
在一些实施例中，所述切换命令携带在媒体接入控制控制元素MAC CE或下行控制信息DCI中。
应理解，装置实施例与方法实施例可以相互对应，类似的描述可以参照方法实施例。具体地，图6 所示的终端设备600可以对应于执行本申请实施例的方法200中的相应主体，并且终端设备600中的各个单元的前述和其它操作和/或功能分别为了实现本申请实施例提供的各个方法中的相应流程，为了简洁，在此不再赘述。
图7是本申请实施例的网络设备700的示意性框图。
如图7所示，所述网络设备700可包括：
接收单元710，用于通过所述网络设备的层1或层2接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述终端设备已完成服务小区的切换。
在一些实施例中，所述第一指示信息包括以下中的至少一项：
第二指示信息，所述第二指示信息用于指示目标小区的标识；
第三指示信息，所述第三指示信息用于指示所述终端设备建议的用于下行传输的参数信息；
无线资源控制RRC传输标识RRC-TransactionIdentifier。
在一些实施例中，所述参数信息包括以下信息中的至少一项：波束、传输配置指示TCI状态、同步信号和/或物理广播信道块SSB、信道状态信息参考信号CSI-RS、探测参考信号SRS。
在一些实施例中，所述第一指示信息携带在上行控制信息UCI或媒体接入控制控制元素MAC CE信令中。
在一些实施例中，所述接收单元710还可用于：
向所述终端设备发送配置信息，所述配置信息用于配置至少一个候选小区。
在一些实施例中，所述接收单元710还可用于：
向所述终端设备发送切换命令，所述切换命令携带在媒体接入控制控制元素MAC CE或下行控制信息DCI中。
在一些实施例中，所述配置信息包括切换条件的配置；其中，所述切换条件为用于触发所述终端设备切换所述终端设备的服务小区的条件。
应理解，装置实施例与方法实施例可以相互对应，类似的描述可以参照方法实施例。具体地，图7所示的网络设备700可以对应于执行本申请实施例的方法300中的相应主体，并且网络设备700中的各个单元的前述和其它操作和/或功能分别为了实现本申请实施例提供的各个方法中的相应流程，为了简洁，在此不再赘述。
上文中结合附图从功能模块的角度描述了本申请实施例的通信设备。应理解，该功能模块可以通过硬件形式实现，也可以通过软件形式的指令实现，还可以通过硬件和软件模块组合实现。具体地，本申请实施例中的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和/或软件形式的指令完成，结合本申请实施例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。可选地，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、电可擦写可编程存储器、寄存器等本领域的成熟的存储介质中。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实施例中的步骤。
例如，上文涉及的发送单元610和接收单元710均可由收发器实现。
图8是本申请实施例的通信设备800示意性结构图。
如图8所示，所述通信设备800可包括处理器710。
其中，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
如图8所示，通信设备800还可以包括存储器720。
其中，该存储器720可以用于存储指示信息，还可以用于存储处理器710执行的代码、指令等。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
如图8所示，通信设备800还可以包括收发器730。
其中，处理器710可以控制该收发器730与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。收发器730可以包括发射机和接收机。收发器730还可以进一步包括天线，天线的数量可以为一个或多个。
应当理解，该通信设备800中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
还应理解，该通信设备800可为本申请实施例的终端设备，并且该通信设备800可以实现本申请实施例的各个方法中由终端设备实现的相应流程，也就是说，本申请实施例的通信设备800可对应于本申请实施例中的终端设备600，并可以对应于执行根据本申请实施例的方法200中的相应主体，为了简洁，在此不再赘述。类似地，该通信设备800可为本申请实施例的网络设备，并且该通信设备800可以实现本申请实施例的各个方法中由网络设备实现的相应流程。也就是说，本申请实施例的通信设备800可对 应于本申请实施例中的网络设备700，并可以对应于执行根据本申请实施例的方法300中的相应主体，为了简洁，在此不再赘述。
此外，本申请实施例中还提供了一种芯片。
例如，芯片可能是一种集成电路芯片，具有信号的处理能力，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。所述芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。可选地，该芯片可应用到各种通信设备中，使得安装有该芯片的通信设备能够执行本申请实施例中的公开的各方法、步骤及逻辑框图。
图9是根据本申请实施例的芯片900的示意性结构图。
如图9所示，所述芯片900包括处理器810。
其中，处理器810可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
如图9所示，所述芯片900还可以包括存储器820。
其中，处理器810可以从存储器820中调用并运行计算机程序，以实现本申请实施例中的方法。该存储器820可以用于存储指示信息，还可以用于存储处理器810执行的代码、指令等。存储器820可以是独立于处理器810的一个单独的器件，也可以集成在处理器810中。
如图9所示，所述芯片900还可以包括输入接口830。
其中，处理器810可以控制该输入接口830与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
如图9所示，所述芯片900还可以包括输出接口840。
其中，处理器810可以控制该输出接口840与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
应理解，所述芯片900可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，也可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
还应理解，该芯片900中的各个组件通过总线系统相连，其中，总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。
上文涉及的处理器可以包括但不限于：
通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等等。
所述处理器可以用于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。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。
上文涉及的存储器包括但不限于：
易失性存储器和/或非易失性存储器。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(synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。
应注意，本文描述的存储器旨在包括这些和其它任意适合类型的存储器。
本申请实施例中还提供了一种计算机可读存储介质，用于存储计算机程序。该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的便携式电子设备执行时，能够使该便携式电子设备执行本申请提供的无线通信方法。可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例中还提供了一种计算机程序产品，包括计算机程序。可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例中还提供了一种计算机程序。当该计算机程序被计算机执行时，使得计算机可以执行本申请提供的无线通信方法。可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选的，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种通信系统，所述通信系统可以包括上述涉及的终端设备和网络设备，以形成如图1所示的通信系统100，为了简洁，在此不再赘述。需要说明的是，本文中的术语“系统”等也可以称为“网络管理架构”或者“网络系统”等。
还应当理解，在本申请实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请实施例。例如，在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”、“上述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
所属领域的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实施例的范围。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，本申请实施例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，或者网络设备等)执行本申请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、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
所属领域的技术人员还可以意识到，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中单元或模块或组件的划分，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，多个单元或模块或组件可以结合或者可以集成到另一个系统，或一些单元或模块或组件可以忽略，或不执行。又例如，上述作为分离/显示部件说明的单元/模块/组件可以是或者也可以不是物理上分开的，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/模块/组件来实现本申请实施例的目的。最后，需要说明的是，上文中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。
以上内容，仅为本申请实施例的具体实施方式，但本申请实施例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实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应以权利要求的保护范围为准。

Claims (31)

  1. 一种无线通信方法，其特征在于，所述方法适用于终端设备，所述方法包括：
    通过所述终端设备的媒体接入控制MAC层向所述终端设备的无线资源控制RRC层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或
    通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息通过所述层1或通过层2发送时，所述第一指示信息包括以下信息中的至少一项：
    第二指示信息，所述第二指示信息用于指示目标小区的标识；
    第三指示信息，所述第三指示信息用于指示所述终端设备建议的用于下行传输的参数信息；
    无线资源控制RRC传输标识RRC-TransactionIdentifier。
  3. 根据权利要求2所述的方法，其特征在于，所述参数信息包括以下信息中的至少一项：波束、传输配置指示TCI状态、同步信号和/或物理广播信道块SSB、信道状态信息参考信号CSI-RS、探测参考信号SRS。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一指示信息通过通过层1或通过层2发送时，所述第一指示信息携带在上行控制信息UCI或媒体接入控制控制元素MAC CE信令中。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述RRC重配置完成消息通过信令无线承载SRB1或SRB3传输。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述终端设备已完成服务小区的切换，包括：
    所述终端设备已成功完成随机接入过程。
  7. 根据权利要求6所述的方法，其特征在于，所述已成功完成随机接入过程，包括：
    所述终端设备已成功完成随机接入冲突解决。
  8. 根据权利要求1至5中任一项所述的方法，其特征在于，所述终端设备已完成服务小区的切换，包括：以下至少之一：
    所述终端设备收到目标小区发送的物理下行控制信道PDCCH；
    所述终端设备收到竞争冲突解决的下行消息；
    所述终端设备收到PDCCH调度的上行资源。
  9. 根据权利要求8所述的方法，其特征在于，所述下行消息包括终端竞争解决标识媒体接入控制控制元素MAC CE。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述方法还包括：
    在所述终端设备满足以下中的至少一项的情况下，触发所述终端设备确定所述终端设备是否已完成服务小区的切换：
    所述终端设备接收到切换命令；
    所述终端设备已应用目标小区发送的配置；
    已触发所述终端设备切换到所述目标小区。
  11. 根据权利要求10所述的方法，其特征在于，所述目标小区发送的配置包括以下配置中的至少一项：
    无线链路层控制RLC的配置、媒体接入控制MAC的配置、物理PHY层的配置。
  12. 根据权利要求10所述的方法，其特征在于，所述已触发所述终端设备切换到所述目标小区，包括：已由配置的切换条件触发所述终端设备切换到所述目标小区，和/或，已由所述切换命令触发所述终端设备切换到所述目标小区。
  13. 根据权利要求1至12中任一项所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于配置至少一个候选小区；
    基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区，所述至少一个候选小区包括所述目标小区。
  14. 根据权利要求13所述的方法，其特征在于，所述配置信息包括测量上报配置；其中，所述基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区，包括：
    基于测量上报配置上报所述至少一个候选小区的测量结果；
    接收切换命令；
    响应于所述切换命令，将所述终端设备的服务小区切换至所述目标小区。
  15. 根据权利要求13所述的方法，其特征在于，所述配置信息包括切换条件的配置；其中，所述基于所述至少一个候选小区，将所述终端设备的服务小区切换至目标小区，包括：
    在所述至少一个候选小区存在满足所述切换条件的第一候选小区时，将所述第一候选小区确定为所述目标小区；
    将所述终端设备的服务小区，切换至所述目标小区。
  16. 根据权利要求10至12以及14中任一项所述的方法，其特征在于，所述切换命令携带在媒体接入控制控制元素MAC CE或下行控制信息DCI中。
  17. 一种无线通信方法，其特征在于，所述方法适用于网络设备，所述方法包括：
    通过所述网络设备的层1或层2接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述终端设备已完成服务小区的切换。
  18. 根据权利要求17所述的方法，其特征在于，所述第一指示信息包括以下中的至少一项：
    第二指示信息，所述第二指示信息用于指示目标小区的标识；
    第三指示信息，所述第三指示信息用于指示所述终端设备建议的用于下行传输的参数信息；
    无线资源控制RRC传输标识RRC-TransactionIdentifier。
  19. 根据权利要求17或18所述的方法，其特征在于，所述参数信息包括以下信息中的至少一项：波束、传输配置指示TCI状态、同步信号和/或物理广播信道块SSB、信道状态信息参考信号CSI-RS、探测参考信号SRS。
  20. 根据权利要求17至19中任一项所述的方法，其特征在于，所述第一指示信息携带在上行控制信息UCI或媒体接入控制控制元素MAC CE信令中。
  21. 根据权利要求17至20中任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送配置信息，所述配置信息用于配置至少一个候选小区。
  22. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送切换命令，所述切换命令携带在媒体接入控制控制元素MAC CE或下行控制信息DCI中。
  23. 根据权利要求21所述的方法，其特征在于，所述配置信息包括切换条件的配置；其中，所述切换条件为用于触发所述终端设备切换所述终端设备的服务小区的条件。
  24. 一种终端设备，其特征在于，包括：
    发送单元，用于：
    通过所述终端设备的媒体接入控制MAC层向所述终端设备的无线资源控制RRC层上报第一指示信息，以触发所述RRC层向网络设备发送RRC重配置完成消息，其中，所述第一指示信息用于指示所述终端设备已完成服务小区的切换；或
    通过所述终端设备的层1或层2向所述网络设备发送所述第一指示信息。
  25. 一种网络设备，其特征在于，包括：
    接收单元，用于通过所述网络设备的层1或层2接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述终端设备已完成服务小区的切换。
  26. 一种终端设备，其特征在于，包括：
    处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行权利要求1至16中任一项所述的方法。
  27. 一种网络设备，其特征在于，包括：
    处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行权利要求17至23中任一项所述的方法。
  28. 一种芯片，其特征在于，包括：
    处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至16中任一项所述的方法或如权利要求17至23中任一项所述的方法。
  29. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至16中任一项所述的方法或如权利要求17至23中任一项所述的方法。
  30. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行如权利要求1至16中任一项所述的方法或如权利要求17至23中任一项所述的方法。
  31. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至16中任一项所述的方法或如权利要求17至23中任一项所述的方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2634040A (en) * 2023-09-27 2025-04-02 Nokia Technologies Oy Method, apparatus and computer program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866965A (zh) * 2019-04-28 2020-10-30 夏普株式会社 条件切换方法及对应的用户设备
WO2021066466A1 (en) * 2019-10-02 2021-04-08 Samsung Electronics Co., Ltd. Method and apparatus for performing handover in wireless communication system
CN112789884A (zh) * 2019-03-19 2021-05-11 Oppo广东移动通信有限公司 一种小区切换的处理方法、设备及存储介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112789884A (zh) * 2019-03-19 2021-05-11 Oppo广东移动通信有限公司 一种小区切换的处理方法、设备及存储介质
CN111866965A (zh) * 2019-04-28 2020-10-30 夏普株式会社 条件切换方法及对应的用户设备
WO2021066466A1 (en) * 2019-10-02 2021-04-08 Samsung Electronics Co., Ltd. Method and apparatus for performing handover in wireless communication system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MEDIATEK INC., QUALCOMM INCORPORATED, INTEL CORPORATION, CHARTER COMMUNICATIONS, VIVO, OPPO, APPLE, NEC: "UL Handling with DAPS during RUDI Handover", 3GPP TSG-RAN WG2 #107, R2-1909178, 16 August 2019 (2019-08-16), XP051766985 *
NOKIA, NOKIA SHANGHAI BELL: "Analysis of DAPS Operation", 3GPP TSG-RAN WG2 MEETING #107, R2-1909036, 15 August 2019 (2019-08-15), XP051766846 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2634040A (en) * 2023-09-27 2025-04-02 Nokia Technologies Oy Method, apparatus and computer program
US12483945B2 (en) 2023-09-27 2025-11-25 Nokia Technologies Oy Method, apparatus and computer program

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