WO2022148489A1 - 切换处理方法与装置、终端、网络设备和存储介质 - Google Patents

切换处理方法与装置、终端、网络设备和存储介质 Download PDF

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Publication number
WO2022148489A1
WO2022148489A1 PCT/CN2022/074557 CN2022074557W WO2022148489A1 WO 2022148489 A1 WO2022148489 A1 WO 2022148489A1 CN 2022074557 W CN2022074557 W CN 2022074557W WO 2022148489 A1 WO2022148489 A1 WO 2022148489A1
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WIPO (PCT)
Prior art keywords
handover command
handover
command
cell
candidate
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Ceased
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PCT/CN2022/074557
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English (en)
French (fr)
Inventor
邓云
顾祥新
王化磊
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to US18/260,397 priority Critical patent/US20240064600A1/en
Publication of WO2022148489A1 publication Critical patent/WO2022148489A1/zh
Anticipated expiration legal-status Critical
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
    • H04W36/0055—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
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • 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
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • 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
    • H04W36/008357—Determination of target cell based on access point [AP] properties, e.g. AP service capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • 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
    • H04W36/005—Control or signalling for completing the hand-off involving radio access media independent information, e.g. MIH [Media independent Hand-off]

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a handover processing method and apparatus, a terminal, a network device, and a storage medium.
  • a terminal that is using network services may face the problem of current network service interruption or quality degradation due to factors such as mobility requirements, wireless transmission traffic load adjustment, activation operation and maintenance, equipment failure, and cell load.
  • the protocols formulated by the 3rd Generation Partnership Project (3GPP) standardize the relevant handover procedures, such as the handover procedures and conditions of the radio resource control (RRC) layer.
  • a handover (conditional handover, CHO) process, etc. is used to transfer the terminal from the communication link of the serving cell (source base station) to the target cell (target base station).
  • RRC radio resource control
  • a handover (conditional handover, CHO) process, etc. is used to transfer the terminal from the communication link of the serving cell (source base station) to the target cell (target base station).
  • the content of handover processing in the protocols formulated by 3GPP still needs to be continuously studied.
  • Embodiments of the present application provide a handover processing method and apparatus, a terminal, a network device, and a storage medium, so as to realize a handover processing procedure for at least one handover command, so as to ensure the continuity and quality of network services, and meet the requirements of mobile sexual needs.
  • an embodiment of the present application provides a handover processing method, including:
  • the terminal acquires at least one handover command, the at least one handover command includes at least one of a first handover command, a second handover command, and a conditional handover command, and the first handover command is indicated by layer 1 or layer 2 signaling , the second handover command is indicated by layer 3 signaling;
  • the terminal performs cell handover according to the handover command to be preferentially executed.
  • an embodiment of the present application provides a handover processing method, including:
  • the network device sends at least one kind of information to the terminal, the at least one kind of information includes at least one of the first handover command, the second handover command, and the first information, and the at least one kind of information is used to determine the handover to be preferentially executed Order;
  • the first information includes configuration parameters of at least one candidate cell and handover execution conditions corresponding to the at least one candidate cell, the first handover command is indicated by layer 1 or layer 2 signaling, and the second handover command is indicated by layer 1 or layer 2 signaling. 3 signaling indication.
  • an embodiment of the present application provides an apparatus for handover processing, where the apparatus includes a processing unit, and the processing unit is configured to:
  • the at least one handover command includes at least one of a first handover command, a second handover command, and a conditional handover command
  • the first handover command is indicated by layer 1 or layer 2 signaling
  • the second handover command is indicated by layer 3 signaling;
  • Cell handover is performed according to the handover command to be preferentially performed.
  • an embodiment of the present application provides a switching processing device, the device includes a processing unit and a communication unit, and the processing unit is configured to:
  • the at least one kind of information includes at least one of a first handover command, a second handover command, and first information, and the at least one kind of information is used to determine the priority to be prioritized
  • the first information includes configuration parameters of at least one candidate cell and handover execution conditions corresponding to the at least one candidate cell, the first handover command is indicated by layer 1 or layer 2 signaling, and the second handover command is indicated by layer 1 or layer 2 signaling. 3 signaling indication.
  • an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by the The processor is executed, and the one or more programs include instructions for executing the steps in the first aspect of the embodiments of the present application.
  • embodiments of the present application provide a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the one or more programs include instructions for executing the steps in the second aspect of the embodiments of the present application.
  • an embodiment of the present application provides a chip, including: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the first aspect or the second embodiment of the present application. some or all of the steps described in an aspect.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the implementation of the present application Some or all of the steps described in the first aspect or the second aspect.
  • the embodiments of the present application provide a computer program, wherein the computer program is operable to cause the computer to execute some or all of the steps described in the first or second aspects of the embodiments of the present application.
  • the computer program may be a software installation package.
  • the terminal acquires at least one handover command, and determines the handover command to be preferentially executed according to the at least one handover command, so as to execute cell handover according to the handover command to be preferentially executed.
  • At least one handover command includes at least one of a first handover command indicated by layer 1 or layer 2 signaling, a second handover command indicated by layer 3 signaling, and a conditional handover command
  • the handover command to be preferentially executed is determined in the at least one handover command, and the cell handover is performed by the handover command to be preferentially executed to realize the handover processing process for the at least one handover command, thereby ensuring the continuity and quality of network services, And meet the mobility needs of the terminal.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a switching process with an Xn interface provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a condition switching provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the architecture of a radio access network provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a handover processing method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another handover processing method provided by an embodiment of the present application.
  • FIG. 7 is a block diagram of functional units of a switching processing apparatus provided by an embodiment of the present application.
  • FIG. 8 is a block diagram of functional units of another switching processing apparatus provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Security True
  • wireless communication systems will not only support traditional wireless communication systems, but also support devices such as device to device (D2D) communication, machine to machine (M2M) communication, machine Type communication (machine type communication, MTC), vehicle to vehicle (V2V) communication, vehicle to everything (V2X) communication, narrow band internet of things (narrow band internet of things, NB-IoT) communication, etc., therefore
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • narrow band internet of things narrow band internet of things
  • NB-IoT narrow band internet of things
  • the wireless communication system in the embodiments of the present application may be applied to beamforming (beamforming), carrier aggregation (carrier aggregation, CA), dual connectivity (dual connectivity, DC) or standalone (standalone, SA) deployment scenarios, etc. .
  • the wireless communication system in this embodiment of the present application may be applied to an unlicensed spectrum.
  • unlicensed spectrum can also be considered as shared spectrum.
  • the wireless communication system in this embodiment may also be applied to licensed spectrum.
  • licensed spectrum can also be considered as non-shared spectrum.
  • the terminal may be a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, an intelligent terminal, a wireless communication device, User Agent or User Device.
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, an intelligent terminal, a wireless communication device, User Agent or User Device.
  • the terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in next-generation communication systems such as NR networks or future evolution of public land mobile communication networks network, PLMN), etc., which are not specifically limited.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle; can be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation security (transportation) wireless terminal equipment in safety), wireless terminal equipment in smart city (smart city) or wireless terminal equipment in smart home (smart home), etc.
  • a virtual reality virtual reality, VR
  • AR augmented reality
  • industrial control Wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation security (transportation) wireless terminal equipment in safety
  • wireless terminal equipment in smart city smart city
  • smart home smart home
  • the network device may be a device for communicating with a terminal, and the network device may be a base station (base transceiver station, BTS) in a GSM or CDMA communication system, or a base station (node B, NB) in a WCDMA communication system , Evolved base station (evolutional node B, eNB or eNodeB) in LTE communication system, next generation base station (next generation evolved node B, ng-eNB) in NR communication system, next generation base station (next generation) in NR communication system node B, gNB) or other devices in the core network (core network, CN), such as access and mobility management function (AMF), user plan function (UPF), etc.
  • the network device may also be an access point (access point, AP) in a wireless local area network WLAN, a relay station, a network device in a future evolved PLMN network, or a network device in an NTN network, and the like.
  • BTS base transceiver station
  • the network device may be an independent node to implement all the functions of the above-mentioned base station; it may include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU), such as gNB-CU and gNB-DU, and may also include an active antenna unit (AAU).
  • the CU can implement part of the functions of the network device
  • the DU can implement part of the functions of the network device.
  • the CU is responsible for processing non-real-time protocols and services, implementing the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. function.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, under this network deployment, the high-level signaling (such as the RRC layer signaling) can be considered to be sent by the DU. , or sent by DU and AAU.
  • the network device may include at least one of CU, DU, and AAU.
  • the CU may be divided into network devices in an access network (radio access network, RAN), and the CU may also be divided into network devices in the core network, which is not specifically limited.
  • the network device may have mobile characteristics, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • the network device can provide services for the cell, and the terminals in the cell can communicate with the network device through transmission resources (eg, spectrum resources).
  • the cells may include small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.
  • the wireless communication system 10 may include a network device 110 and a terminal 120 , and the network device 110 may be a device that performs communication with the terminal 120 . At the same time, the network device 110 may provide communication coverage for a specific geographic area, and may communicate with the terminals 120 located within the coverage area.
  • the wireless communication system 10 may further include multiple network devices, and the coverage of each network device may include other numbers of terminals, which are not specifically limited herein.
  • the wireless communication system 10 may further include other network entities such as a network controller, a mobility management entity, etc., which are not specifically limited herein.
  • network entities such as a network controller, a mobility management entity, etc., which are not specifically limited herein.
  • the communication between the network device and the terminal in the wireless communication system 10 and the communication between the terminal and the terminal may be wireless communication or wired communication, which is not specifically limited herein.
  • a terminal that is using network services may face the problem of current network service interruption or quality degradation due to factors such as mobility requirements, wireless transmission traffic load adjustment, activation operation and maintenance, equipment failure, and cell load. Therefore, in order to ensure the continuity and quality of network services, the wireless communication system needs to transfer the terminal from the communication link of the serving cell (source base station) to the target cell (target base station), that is, perform the handover process.
  • the network device may send a handover command (ie, RRC signaling) to the terminal, so that the terminal accesses the target cell (target base station) from the serving cell (ie, the source base station). Then, after receiving the handover command, the terminal accesses the target cell according to the target cell information included in the handover command.
  • a handover command ie, RRC signaling
  • the terminal accesses the target cell according to the target cell information included in the handover command.
  • the handover process is referred to as layer 3 handover.
  • the following takes the Xn interface switching process as an example for description.
  • Handover preparation It includes the transmission process of signaling such as measurement control and reporting, handover request, and handover request confirmation.
  • the handover confirmation message includes the handover command generated by the target base station, and the source base station may directly forward the handover command to the terminal without any modification to the handover command generated by the target base station.
  • (2) Handover execution the terminal immediately executes the handover process after receiving the handover command, including: the terminal disconnects the connection with the source base station, synchronizes to the target base station (for example, performs a random access procedure, sends an RRC handover complete message to the second network equipment, etc.), sequence number (Sequence Number, SN) state transfer, data forwarding, etc.
  • the target base station performs a path switch (path switch) with the AMF and UPF to change the path on the network side, and at the same time releases the terminal context on the source base station side.
  • path switch path switch
  • the serving cell may first configure the terminal with configuration parameters of one or more candidate cells and their corresponding handover execution conditions (condExecutionCond). Then, the terminal may determine, from the one or more candidate cells, a candidate cell that satisfies the corresponding handover execution condition as a candidate target cell to be handed over. For example, the handover execution condition is to judge whether the signal quality of a candidate cell is higher than that of the serving cell by a predetermined offset.
  • the terminal uses the configuration parameters corresponding to the candidate target cell as a conditional handover command, and uses the conditional handover command to access the candidate target cell and synchronize with the candidate target cell, for example, initiate a random access procedure to the candidate target cell , send an RRC reconfiguration complete message, etc., so as to realize the handover to the candidate target cell. If a candidate cell that satisfies the corresponding handover execution condition has not been determined among the one or more candidate cells, the terminal continues to maintain the RRC connection with the source base station.
  • conditional handover can prevent the handover preparation time from being too long, and solve the problem that the terminal is too late when it is about to handover.
  • the terminal has a specific running trajectory.
  • the network device can configure the terminal in advance with the configuration parameters of one or more candidate cells and the conditions used to trigger the terminal to perform handover.
  • the terminal can use the one or more One candidate cell that satisfies the condition among the multiple candidate cells initiates an access request.
  • the source base station configures the terminal through a conditional handover command (ie, an RRC reconfiguration message) to configure the configuration parameters of the candidate target cell and the corresponding handover execution conditions. Then, the terminal evaluates whether the candidate target cell satisfies the handover execution condition, and if so, initiates a random access procedure, sends an RRC reconfiguration complete message, and the like to execute cell handover. Finally, the (candidate) target base station performs path switching, and informs the source base station to release the terminal context, etc.
  • a conditional handover command ie, an RRC reconfiguration message
  • CU Centralized unit
  • DU distributed unit
  • the network device in the NR communication system may have different implementations, may be an independent node to implement all functions of the base station, or may be divided into two parts: CU and DU. Among them, one CU can be connected to multiple DUs. Usually, the CU processes RRC signaling, while the DU processes layer 1 or layer 2 signaling and data.
  • NR wireless access network NR-RAN
  • NR-RAN new radio interface radio access network
  • the NR-RAN consists of multiple gNBs connected to the 5G core network (5GC).
  • each gNB is connected by Xn interface, and each gNB and 5GC are connected by NG interface.
  • the gNB-CU (gNB central unit) and the gNB-DU (gNB distributed unit) are connected through the F1 interface; a gNB can contain one gNB-CU and one or more gNB-DUs; a gNB-DU can only communicate with A gNB-CU connection.
  • One gNB-CU can be connected with multiple gNB-DUs.
  • the specific descriptions of gNB-CU and gNB-DU are as follows:
  • gNB-CU A logical node that is used to carry the RRC, SDAP and PDCP protocols of the gNB or the RRC and PDCP protocols of the en-gNB.
  • the logical node controls the operation of one or more gNB-DUs.
  • gNB-DU A logical node that is used to carry the RLC, MAC and PHY layers of the gNB or en-gNB, the operation of which is partially controlled by the gNB-CU. Wherein, one gNB-DU supports one or more cells, and one cell is only supported by one gNB-DU.
  • an embodiment of the present application provides a schematic flowchart of a handover processing method, please refer to FIG. 5 .
  • the method can be applied to a terminal in a wireless communication system.
  • the method includes:
  • the terminal acquires at least one switching command.
  • the at least one handover command may include at least one of a first handover command, a second handover command, and a conditional handover command.
  • the first handover command is indicated by layer 1 or layer 2 signaling
  • the second handover command is indicated by layer 3 signaling. order instruction.
  • the terminal in this embodiment of the present application may access the serving cell to establish an RRC connection, and establish a data radio bearer to perform service transmission.
  • the serving cell can configure relevant measurement information for the terminal, so that the terminal can measure the serving cell and neighboring cells, and report a measurement report and the like. The serving cell can then make a handover decision based on the measurement report as well as some other factors such as cell load.
  • the network device of the embodiment of the application adopts a radio access network (RAN) architecture in which the distributed unit (CU) and the centralized unit (DU) are separated. Therefore, in the process of performing the cell handover process of the terminal, the present application newly introduces a network device ( For example, the handover command (ie, the first handover command) triggered by the DU in the source base station corresponding to the serving cell, and the handover command (ie, the second handover command) triggered by the CU in the network device. At the same time, it is also considered that there may be a conditional switching command triggered by the terminal.
  • the terminal may need to handle a scenario in which one or more handover commands are triggered simultaneously. That is, the terminal may acquire at least one of the first switching command, the second switching command, and the conditional switching command. How to solve the problem that the terminal needs to deal with the simultaneous triggering of one or more handover commands will be described in detail in the following embodiments of the present application.
  • the first handover command is a handover command triggered by a distributed unit in the network device based on a measurement result of layer 1 or layer 2;
  • the second handover command is a measurement report based on a layer 3 measurement report by a centralized unit in the network device or Handover command triggered by cell load.
  • the first handover command in the embodiment is a handover decision made by the DU in the network device, and triggers the terminal to implement the handover through layer 1 or layer 2 signaling;
  • the second handover command is a handover made by the CU in the network device. decision, and trigger the terminal to implement handover through layer 3 signaling (such as RRC signaling).
  • the first handover command can be used for L1 or L2-centric inter-cell mobility (L1/L2-centric inter-cell mobility), and the second handover command can be indicated by an RRC reconfiguration message.
  • the terminal determines a handover command to be preferentially executed according to at least one handover command.
  • the terminal performs cell handover according to the handover command to be preferentially executed.
  • the embodiment of the present application needs to consider determining a handover command to be preferentially executed from the at least one handover command, so that the The handover command executes cell handover to implement a handover process for at least one handover command, thereby ensuring communication continuity and service quality, and meeting the mobility requirements of the terminal.
  • specific descriptions will be given based on differences in the handover commands included in the at least one handover command.
  • Scenario 1 For the scenario where the terminal needs to process the first handover command and the second handover command triggered at the same time, there are the following solutions:
  • determining the handover command to be preferentially executed according to the at least one handover command may include the following steps: the terminal determines at least one handover command according to the protocol One of the handover commands is used as the handover command to be executed preferentially (for example, the protocol stipulates that the second handover command is the handover command to be executed preferentially); or; the terminal randomly or autonomously selects one of the at least one handover command.
  • One kind of handover command is selected as the handover command to be preferentially executed; or, the terminal preferentially selects one kind of handover command among at least one kind of handover command as the handover command to be preferentially executed.
  • this example can be different according to the protocol provisions in the communication protocol formulated by 3GPP, random selection, autonomous selection or preferential selection.
  • a handover command to be executed preferentially is determined from the first handover command and the second handover command, thereby realizing the flexibility and diversity of the wireless communication system in the process of processing at least one handover command.
  • the terminal may preferentially select the second handover command to perform cell handover while ignoring the first handover command.
  • determining the handover command to be preferentially executed according to the at least one handover command may include the following steps: the terminal according to the second handover command
  • the handover type of the second handover command determines the handover command to be executed preferentially
  • the handover type of the second handover command includes one of the following: inter-frequency handover, intra-frequency handover, and inter-system handover.
  • the inter-frequency handover can be used to indicate that the downlink frequency (downlink carrier frequency) of the candidate target cell indicated by the second handover command is different from the downlink frequency point (downlink carrier frequency) of the serving cell;
  • the intra-frequency handover can be used for Indicate that the downlink frequency of the candidate target cell indicated by the second handover command is the same as the downlink frequency of the serving cell;
  • the inter-system handover can be used for communication between the communication system of the candidate target cell indicated by the second handover command and the serving cell Systems are different.
  • the terminal when the terminal needs to process the first handover command and the second handover command that are triggered at the same time, the CU in the network device (such as the source base station corresponding to the serving cell) usually needs to consider when making the second handover decision. Measurement results reported by the terminal or various other factors, such as the signal quality of the serving cell and neighboring cells reported by the terminal, cell load, mobility requirements of the network, and new service requirements of the terminal. In addition, in the measurement process in the connected state, the terminal can perform measurement through different measurement types such as intra-frequency measurement, inter-frequency measurement, and inter-system measurement.
  • this example considers that different handover commands to be executed preferentially are determined by different handover types of the second handover command, so as to facilitate the analysis of handover requirements and handover efficiency in the handover process, and ensure the flexibility of the wireless communication system and diversity.
  • determining the handover command to be preferentially executed according to the handover type of the second handover command may include the following steps: if the handover type of the second handover command is inter-frequency handover or inter-system handover, the terminal determines the handover command to be preferentially executed is the second handover command; or, if the handover type of the second handover command is intra-frequency handover, the terminal determines that the handover command to be preferentially executed is the first handover command.
  • the terminal since the CU usually needs to consider the measurement results reported by the terminal or various other factors when making the second handover decision, when the handover type of the second handover command is inter-frequency handover or inter-system handover, It is more appropriate that the terminal can execute the second handover command preferentially, so as to meet the actual handover requirement. In addition, when the handover type of the second handover command is intra-frequency handover, in order to improve handover efficiency, the terminal may preferentially execute the first handover command.
  • determining the handover command to be preferentially executed according to the at least one handover command may include the following steps: the terminal according to the first handover command The measurement result of the indicated candidate target cell and the measurement result of the candidate target cell indicated by the second handover command determine the handover command to be preferentially executed.
  • the measurement result may include a measured value of reference signal received power (RSRP), a measured value of reference signal received quality (RSRQ), a signal to interference noise ratio (SINR), and a measured value of reference signal received quality (RSRQ). ), channel quality, signal quality, etc.
  • RSRP reference signal received power
  • RSRQ measured value of reference signal received quality
  • SINR signal to interference noise ratio
  • RSSQ measured value of reference signal received quality
  • the terminal when the terminal needs to process the first handover command and the second handover command that are triggered at the same time, if the serving cell is Cell_1, the candidate target cell indicated by the first handover command is Cell_2, and the second handover command indicates The candidate target cell is Cell_3, then the terminal usually performs corresponding measurements on the neighboring cells (including Cell_2 and Cell_3) of Cell_1 and Cell_1 to report to the network device (such as the source base station corresponding to the serving cell). Therefore, the terminal can maintain and store the measurement result of Cell_2 and the measurement result of Cell_3.
  • this example considers that the handover command to be preferentially executed is determined by the measurement result of the candidate target cell indicated by the first handover command and the measurement result of the candidate target cell indicated by the second handover command, so that the handover command to be preferentially executed is determined by the measurement result between the measurement results.
  • the comparison implements a handover process for at least one handover command.
  • determining the handover command to be preferentially executed according to the measurement result of the candidate target cell indicated by the first handover command and the measurement result of the candidate target cell indicated by the second handover command may include the following steps: The signal quality of the indicated candidate target cell is higher than the signal quality of the candidate target cell indicated by the second handover command, and the terminal determines that the handover command to be preferentially executed is the first handover command; or, if the candidate target cell indicated by the second handover command If the signal quality of the target cell is higher than the signal quality of the candidate target cell indicated by the first handover command, the terminal determines that the handover command to be preferentially executed is the second handover command.
  • this example further considers that the terminal preferentially selects a candidate target cell with better signal quality as the handover target cell to execute the corresponding handover command, thereby helping to ensure the quality of network services after handover.
  • determining the handover command to be preferentially executed according to the at least one handover command may include the following steps: the terminal according to the first handover command Whether the indicated candidate target cell and the candidate target cell indicated by the second handover command are the same cell determines the handover command to be executed preferentially.
  • this example considers the candidate target cell indicated by the first handover command and the candidate target cell indicated by the second handover command. Whether it is the same cell to determine the handover command to be executed preferentially, so as to realize the handover processing process for at least one handover command through the judgment result of whether it is the same cell, which is conducive to analyzing the communication interruption duration, handover requirements and Handover efficiency, as well as ensuring flexibility and diversity of wireless communication systems.
  • determining the handover command to be preferentially executed according to whether the candidate target cell indicated by the first handover command and the candidate target cell indicated by the second handover command are the same cell may include the following steps: if the first handover command indicates The candidate target cell indicated by the second handover command is not the same cell as the candidate target cell indicated by the second handover command, then the terminal determines that the handover command to be preferentially executed is the second handover command; The candidate target cells indicated by the two handover commands are the same cell, and the terminal determines that the handover command to be preferentially executed is the first handover command.
  • the candidate target cell indicated by the second handover command is not the candidate indicated by the first handover command.
  • the terminal may perform the first handover preferentially Order.
  • Scenario 2 For the scenario where the terminal needs to process the first switching command and the conditional switching command that are triggered at the same time
  • obtaining the at least one handover command may include the following steps: the terminal obtains the configuration parameters of the at least one candidate cell from the network device and the The handover execution condition corresponding to at least one candidate cell; the terminal determines a candidate cell that satisfies the corresponding handover execution condition from the at least one candidate cell as the candidate target cell to be handed over, and the configuration parameter corresponding to the candidate target cell is the conditional handover command; the terminal Obtain the first handover command from the network device.
  • the terminal accesses the serving cell to be in a connected state. Then, the serving cell discovers that the terminal supports conditional handover, so that at least one candidate cell, configuration parameters of each candidate cell, and handover execution conditions corresponding to each candidate cell are pre-configured for the terminal. The serving cell needs to negotiate with the at least one candidate cell to obtain the configuration parameters configured for the terminal by the at least one candidate cell, and the handover execution condition is determined by the serving cell and sent to the terminal. Finally, after receiving the configuration parameters of the at least one candidate cell, the terminal starts to evaluate whether the at least one candidate cell satisfies the handover execution condition. Before no candidate cell satisfies the handover execution condition, the terminal continues to maintain connection with the serving cell for signaling and data interaction.
  • situation 2 mainly analyzes that the terminal selects a candidate cell that satisfies the handover execution condition from at least one candidate cell configured by the network device to trigger the conditional handover command, and needs to simultaneously process the first candidate cell triggered by the network device. The case of the switch command.
  • the following will specifically introduce several solutions for how the terminal determines the handover command to be preferentially executed according to at least one handover command.
  • determining the handover command to be preferentially executed according to at least one handover command may include the following steps: the terminal preferentially selects the first handover command as the handover command to be preferentially executed.
  • the terminal needs to process the first handover command and the conditional handover command that are triggered at the same time, since the conditional handover command is triggered after the terminal evaluates that at least one candidate cell configured by the network device satisfies the handover execution condition, and At least one candidate cell also needs to be pre-configured by the network device. Therefore, compared with the first handover command triggered in real time by the DU in the network device, the triggering of the conditional handover command has the problem of lower handover timeliness. In order to ensure handover timeliness and efficiency, this example considers that the first handover command is preferentially executed.
  • determining the handover command to be preferentially executed according to at least one kind of handover command may include the following steps: the terminal determines the handover command to be preferentially executed according to the handover type of the conditional handover command, and the handover type of the conditional handover command includes exclusive frequency switching or same-frequency switching.
  • the inter-frequency handover can be used to indicate that the downlink frequency (downlink carrier frequency) of the candidate target cell indicated by the conditional handover command is different from the downlink frequency point (downlink carrier frequency) of the serving cell; the intra-frequency handover can be used to indicate The downlink frequency of the candidate target cell indicated by the conditional handover command is the same as the downlink frequency of the serving cell.
  • this example considers that different handover commands to be executed preferentially are determined by different handover types of the conditional handover command, which is beneficial to Analyze the handover requirements and handover efficiency in the handover process, and ensure the flexibility and diversity of the wireless communication system.
  • determining the handover command to be preferentially executed according to the handover type of the conditional handover command may include the following steps: if the handover type of the conditional handover command is inter-frequency handover, the terminal determines that the handover command to be preferentially executed is the conditional handover command; or , if the handover type of the conditional handover command is intra-frequency handover, the terminal determines that the handover command to be preferentially executed is the first handover command.
  • the terminal when the switching type of the conditional switching command is inter-frequency switching, it is more appropriate that the terminal can execute the conditional switching command preferentially, so as to meet the actual switching requirement.
  • the switching type of the conditional switching command is intra-frequency switching, in order to improve switching efficiency, the terminal may execute the first switching command preferentially.
  • determining the handover command to be preferentially executed according to at least one handover command may include the following steps: the terminal according to the measurement result of the candidate target cell corresponding to the conditional handover command and the candidate target cell indicated by the first handover command The measurement results of the determine the handover command to be executed preferentially.
  • the measurement result may include a measurement value of RSRP, a measurement value of RSRQ, a measurement value of SINR, channel quality, signal quality, and the like.
  • the terminal when the terminal needs to process the first handover command and the conditional handover command that are triggered at the same time, if the serving cell is Cell_1, the candidate target cell indicated by the first handover command is Cell_4, and the candidate target cell indicated by the conditional handover command is Cell_4. If the target cell is Cell_5, the terminal usually performs corresponding measurements on the neighboring cells (including Cell_4) of Cell_1 and Cell_1 to report to the network device (such as the original base station corresponding to the serving cell), and at least one candidate cell ( Including Cell_5) perform corresponding measurements. Therefore, the terminal may store the measurement result of Cell_4 and the measurement result of Cell_5.
  • this example considers the measurement result of the candidate target cell indicated by the first handover command and the measurement result of the candidate target cell indicated by the conditional handover command to determine the handover command to be preferentially executed, so as to compare the measurement results.
  • a handover processing procedure for at least one handover command is implemented.
  • determining the handover command to be preferentially executed according to the measurement result of the candidate target cell corresponding to the conditional handover command and the measurement result of the candidate target cell indicated by the first handover command may include the following steps: If the signal quality of the candidate target cell is higher than the signal quality of the candidate target cell corresponding to the conditional handover command, the terminal determines that the handover command to be preferentially executed is the first handover command; or, if the signal quality of the candidate target cell corresponding to the conditional handover command is high Based on the signal quality of the candidate target cell indicated by the first handover command, the terminal determines that the handover command to be preferentially executed is a conditional handover command.
  • this example further considers that the terminal preferentially selects a candidate target cell with better signal quality as the handover target cell to execute the corresponding handover command, thereby helping to ensure the quality of network services after handover.
  • determining the handover command to be preferentially executed according to at least one handover command may include the following steps: according to whether the candidate target cell corresponding to the conditional handover command and the candidate target cell indicated by the first handover command are the same by the terminal cell to determine the handover command to be preferentially executed.
  • this example considers whether the candidate target cell indicated by the first handover command and the candidate target cell indicated by the conditional handover command are The same cell determines the handover command to be preferentially executed, so that the handover processing process for at least one handover command is realized through the judgment result of whether it is the same cell, which is conducive to analyzing the handover timeliness and handover efficiency in the handover processing process, as well as ensuring Flexibility and diversity of wireless communication systems.
  • determining the handover command to be preferentially executed according to whether the candidate target cell corresponding to the conditional handover command and the candidate target cell indicated by the first handover command are the same cell may include the following steps: if the candidate target cell corresponding to the conditional handover command is the same cell It is not the same cell as the candidate target cell indicated by the first handover command, then the terminal determines that the handover command to be preferentially executed is a conditional handover command; or, if the candidate target cell corresponding to the conditional handover command is the candidate target cell indicated by the first handover command If the target cell is the same cell, the terminal determines that the handover command to be preferentially executed is the first handover command.
  • the terminal since the terminal usually needs to consider the configuration parameters of at least one candidate cell configured by the network and the corresponding handover execution conditions when triggering the conditional handover command, the candidate target cell indicated by the conditional handover command is not the one indicated by the first handover command. In the case of a candidate target cell, it is more appropriate for the terminal to execute the conditional handover command preferentially, so as to meet the actual handover requirement. In addition, when the candidate target cell indicated by the conditional handover command is the candidate target cell indicated by the first handover command, in order to improve handover timeliness and efficiency, the terminal may execute the first handover command preferentially.
  • Scenario 3 For a scenario where the terminal only needs to process the triggered first handover command, but the handover execution condition of the conditional handover has not yet been met.
  • the terminal obtains at least one handover command, which can be understood as the terminal obtains the first handover command of the network device.
  • the terminal before the terminal obtains the first handover command of the network device, the terminal also obtains relevant configuration information for conditional handover from the network device. An example is given below.
  • the method further includes the following steps: the terminal acquires the configuration parameters of the at least one candidate cell from the network device and the handover execution conditions corresponding to at least one candidate cell; determining the handover command to be preferentially executed according to at least one handover command, including: the terminal determining the handover command to be preferentially executed as the first handover command.
  • the terminal can directly execute the first handover command preferentially.
  • the method further includes the following steps: the terminal retains the configuration parameters of the at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell.
  • the terminal can continue to retain the configuration parameters of the at least one candidate cell configured by the network and the handover execution conditions corresponding to the at least one candidate cell after preferentially executing the first handover command, so as to continue to evaluate whether the at least one candidate cell satisfies the corresponding The handover execution condition of , and the conditional handover is executed when the handover execution condition is satisfied.
  • the terminal continues to retain the configuration parameters of the at least one candidate cell configured by the network and the handover execution condition corresponding to the at least one candidate cell, without the need for the network to reconfigure the conditional handover, thereby helping to reduce network signaling overhead.
  • the method may further include the following steps: if the candidate target cell indicated by the first handover command is the first candidate cell in the at least one candidate cell, the terminal deletes the configuration parameter corresponding to the first candidate cell and the first candidate cell The corresponding said handover execution condition, and the configuration parameters and corresponding handover execution conditions corresponding to the remaining candidate cells except the first candidate cell in at least one candidate cell are reserved; or, if the candidate target cell indicated by the first handover command does not In at least one candidate cell, the terminal retains the configuration parameters of the at least one candidate target cell and the handover execution condition corresponding to the at least one candidate cell.
  • this example further considers whether the candidate target cell indicated by the first handover command is in the network.
  • the terminal needs to delete the configuration parameters corresponding to the first candidate cell from the configuration parameters of the at least one candidate cell and retain the remaining configuration parameters, and delete the handover execution conditions corresponding to the first candidate cell from the handover execution conditions corresponding to the at least one candidate cell.
  • the remaining switching execution conditions are retained, thereby ensuring the stability of subsequent execution condition switching.
  • the terminal deletes
  • the configuration parameters and handover execution conditions corresponding to Cell_7 are reserved, and the configuration parameters and handover execution conditions corresponding to Cell_8 are reserved, and the configuration parameters and handover execution conditions corresponding to Cell_9 are reserved, so that the terminal can continue to evaluate whether the candidate cell satisfies the handover execution conditions.
  • Conditional handover is performed at the same time, thereby reducing network signaling overhead.
  • performing cell handover according to the handover command to be preferentially executed may include the following steps: the terminal suspends evaluating whether at least one candidate cell satisfies the corresponding handover execution condition; the terminal performs cell handover according to the first handover command, and performs cell handover according to the first handover command After the cell handover is instructed to be executed, it continues to evaluate whether at least one candidate cell satisfies the corresponding handover execution condition.
  • the terminal may notify the RRC layer through the physical layer or the MAC layer to suspend evaluating whether at least one candidate cell satisfies the corresponding handover execution condition, and after executing the first handover command (that is, after the handover is completed) Continue to evaluate whether the at least one candidate cell satisfies the corresponding handover execution condition, without the need for the network to reconfigure for the conditional handover, thereby helping to reduce network signaling overhead.
  • the terminal acquires at least one handover command, and determines the handover command to be preferentially executed according to the at least one handover command, so as to execute cell handover according to the handover command to be preferentially executed.
  • At least one handover command includes at least one of a first handover command indicated by layer 1 or layer 2 signaling, a second handover command indicated by layer 3 signaling, and a conditional handover command
  • the handover command to be preferentially executed is determined in the at least one handover command, and the cell handover is performed by the handover command to be preferentially executed to realize the handover processing process for the at least one handover command, thereby ensuring the continuity and quality of network services, And meet the mobility needs of the terminal.
  • an embodiment of the present application provides a schematic flowchart of another handover processing method, please refer to FIG. 6 .
  • the handover processing method can be applied to a network device in a wireless communication system.
  • the method includes:
  • the network device sends at least one kind of information to the terminal, where the at least one kind of information includes at least one of a first handover command, a second handover command, and first information, and the at least one kind of information is used to determine the handover to be preferentially executed Order.
  • the first information includes configuration parameters of the at least one candidate cell and handover execution conditions corresponding to the at least one candidate cell.
  • the first handover command is indicated by layer 1 or layer 2 signaling
  • the second handover command is indicated by layer 3 signaling.
  • the terminal in this embodiment of the present application may access the serving cell to establish an RRC connection, and establish a data radio bearer to perform service transmission.
  • the serving cell can configure relevant measurement information for the terminal, so that the terminal can measure the neighbor cell and the serving cell and report the measurement report. The serving cell can then make a handover decision based on the measurement report as well as some other factors such as cell load.
  • the network device of the embodiment of the application adopts the RAN architecture in which the CU and the DU are separated. Therefore, in the process of performing the cell handover process of the terminal, the present application newly introduces a handover command (That is, the first handover command), and the handover command (ie, the second handover command) triggered by the CU in the network device.
  • a handover command That is, the first handover command
  • the handover command ie, the second handover command
  • the network device since the network device also needs to configure configuration information of at least one candidate cell for conditional handover and corresponding handover execution conditions to the terminal, there may also be a conditional handover command triggered by the terminal.
  • the terminal may need to handle a scenario in which one or more handover commands are triggered simultaneously. That is, the terminal may acquire at least one of the first switching command, the second switching command, and the conditional switching command.
  • the first handover command is a handover command triggered by a distributed unit in the network device based on a measurement result of layer 1 or layer 2;
  • the second handover command is a measurement report based on a layer 3 measurement report by a centralized unit in the network device or Handover command triggered by cell load.
  • layer 1 is a physical layer
  • layer 2 may include a MAC layer and an RLC layer
  • layer 3 may include an RRC layer
  • the first handover command in this embodiment of the present application is a handover made by a DU in a network device decision, and trigger the terminal to implement handover through layer 1 or layer 2 signaling
  • the second handover command is a handover decision made by the CU in the network device, and triggers the terminal to implement through layer 3 signaling (such as RRC signaling). switch.
  • the centralized unit in the network device or the distributed unit in the network device avoids sending the first handover command and the second handover command simultaneously by notifying each other when triggering the handover or before triggering the handover.
  • the centralized unit after the centralized unit needs to trigger the second switching command or has triggered the second switching command, the centralized unit notifies the distributed unit that it will trigger the second switching command or has triggered the second switching command, so as to distribute the The mode unit temporarily avoids triggering the first handover command.
  • the network device in this embodiment of the present application may adopt a RAN architecture in which CU and DU are separated, if the CU makes a handover decision for the second handover command (or before triggering the second handover command), the CU may The DU is notified that the second handover command is about to be triggered or has been triggered, thereby preventing the DU from retriggering the first handover command. Similarly, if the DU makes the handover decision of the first handover command (or before triggering the second handover), the DU can notify the CU that the first handover command is about to be or has been triggered, thereby avoiding the CU to trigger the second handover decision again. Based on this, the terminal only has the situation of receiving the first handover command or the second handover command, which is beneficial to avoid the situation that the terminal needs to process the first handover command and the second handover command at the same time.
  • the centralized unit in the network device considers the first handover command being sent by the distributed unit in the network device when making the handover decision of the second handover command, and uses the first handover command indicated by the first handover command
  • the candidate target cell is used as the decision reference for handover triggering.
  • the network device in this embodiment of the present application may adopt a RAN architecture in which CU and DU are separated, if the CU makes a handover decision for the second handover command, the CU may consider the first handover command being triggered by the DU, And the candidate target cell indicated by the first handover command is used as the decision criterion for handover triggering. That is to say, if the terminal is handed over from the serving cell to the target cell after executing the first handover command, the CU uses the target cell as the handover triggering decision criterion (eg, perform measurement reporting for the target cell, etc.). Based on this, the terminal only has the situation of receiving the first handover command, which is beneficial to avoid the situation that the terminal needs to process the first handover command and the second handover command at the same time.
  • the handover triggering decision criterion eg, perform measurement reporting for the target cell, etc.
  • the distributed unit in the network device considers the second handover command being sent by the centralized unit in the network device when making the handover decision of the first handover command, and uses the second handover command indicated by the second handover command
  • the candidate target cell is used as the decision reference for handover triggering.
  • the network device in this embodiment of the present application may adopt a RAN architecture in which the CU and DU are separated
  • the DU may consider the second handover command being triggered by the CU
  • the candidate target cell indicated by the second handover command is used as the decision criterion for handover triggering. That is to say, if the terminal is handed over from the serving cell to the target cell after executing the second handover command, the DU uses the target cell as the decision criterion for handover triggering. Based on this, the terminal only has the situation of receiving the second handover command, which is beneficial to avoid the situation that the terminal needs to process the first handover command and the second handover command at the same time.
  • the network device sends at least one type of information to the terminal, and the at least one type of information includes at least one of the first handover command, the second handover command, and the first information. Since at least one type of information is used to determine the handover command to be preferentially executed, the first information includes the configuration parameters of at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell, and the first handover command is indicated by layer 1 or layer 2 signaling , the second handover command is indicated by layer 3 signaling, so this embodiment of the present application considers determining a handover command to be preferentially executed from the at least one handover command, and performing cell handover through the handover command to be preferentially executed to achieve at least one handover command. A handover processing process for handover commands, thereby ensuring the continuity and quality of network services and meeting the mobility requirements of terminals.
  • the terminal or network device includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software-driven hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • each functional unit can be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, and can also be implemented in the form of software program modules. It should be noted that, the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 7 provides a block diagram of functional units of a switching processing apparatus.
  • the handover processing apparatus 700 is applied to a terminal, and specifically includes: a processing unit 702 and a communication unit 703 .
  • the processing unit 702 is used to control and manage the actions of the terminal.
  • the processing unit 702 is used to support the terminal to perform the steps in FIG. 5 and other processes for the technical solutions described in this application.
  • the communication unit 703 is used to support communication between the terminal and other devices in the wireless communication system.
  • the switching processing apparatus 700 may further include a storage unit 701 for storing program codes and data of the terminal.
  • the processing unit 702 may be a processor or a controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit (application-specific integrated circuit). integrated circuit, ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processing unit 702 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 703 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 701 may be a memory.
  • the processing unit 702 is a processor
  • the communication unit 703 is a communication interface
  • the storage unit 701 is a memory
  • the switching processing apparatus 700 involved in this embodiment of the present application may be the terminal shown in FIG. 9 .
  • the processing unit 702 is configured to perform any step performed by the terminal in the above method embodiments, and when performing data transmission such as sending, the communication unit 703 can be selectively invoked to complete corresponding operations. A detailed description will be given below.
  • the processing unit 702 is configured to: obtain at least one handover command, where the at least one handover command includes at least one of a first handover command, a second handover command, and a conditional handover command, and the first handover command is signaled through layer 1 or layer 2
  • the second handover command is indicated by layer 3 signaling; the handover command to be preferentially executed is determined according to at least one handover command; the cell handover is executed according to the handover command to be preferentially executed.
  • At least one handover command includes at least one of a first handover command indicated by layer 1 or layer 2 signaling, a second handover command indicated by layer 3 signaling, and a conditional handover command
  • the handover command to be preferentially executed is determined in the at least one handover command, and the cell handover is performed by the handover command to be preferentially executed to realize the handover processing process for the at least one handover command, thereby ensuring the continuity and quality of network services, And meet the mobility needs of the terminal.
  • the first handover command is a handover command triggered by a distributed unit in the network device based on the measurement result of layer 1 or layer 2;
  • the second handover command is a handover command triggered by a centralized unit in the network device based on layer 3
  • the measurement report or the handover command triggered by the cell load is a handover command triggered by the cell load.
  • the processing unit 702 has the function of: according to the protocol Provision is made to determine at least one of the handover commands as the handover command to be preferentially executed; or; randomly or autonomously select one of the at least one handover command as the handover command to be preferentially executed; or, One of the at least one switching commands is preferentially selected as the switching command to be preferentially executed.
  • the processing unit 702 is specifically configured to: according to the first handover command
  • the handover type of the second handover command determines the handover command to be executed preferentially
  • the handover type of the second handover command includes one of the following: inter-frequency handover, intra-frequency handover, and inter-system handover.
  • the processing unit 702 in determining the handover command to be preferentially executed according to the handover type of the second handover command, the processing unit 702: if the handover type of the second handover command is inter-frequency handover or inter-system handover, determine the handover command to be prioritized The executed handover command is the second handover command; or, if the handover type of the second handover command is intra-frequency handover, it is determined that the handover command to be preferentially executed is the first handover command.
  • the processing unit 702 is specifically configured to: according to the first handover command The measurement result of the candidate target cell indicated by a handover command and the measurement result of the candidate target cell indicated by the second handover command determine the handover command to be executed preferentially.
  • the processing unit 702 specifically uses In: if the signal quality of the candidate target cell indicated by the first handover command is higher than the signal quality of the candidate target cell indicated by the second handover command, the handover command to be preferentially executed is determined to be the first handover command; The signal quality of the candidate target cell indicated by the second handover command is higher than the signal quality of the candidate target cell indicated by the first handover command, and the handover command to be preferentially executed is determined as the second handover command.
  • the processing unit 702 is specifically configured to: according to the first handover command Whether the candidate target cell indicated by a handover command and the candidate target cell indicated by the second handover command are the same cell determines the handover command to be executed preferentially.
  • the processing unit 702 is specifically configured to: : if the candidate target cell indicated by the first handover command and the candidate target cell indicated by the second handover command are not the same cell, determine that the handover command to be preferentially executed is the second handover command; If the indicated candidate target cell and the candidate target cell indicated by the second handover command are the same cell, it is determined that the handover command to be preferentially executed is the first handover command.
  • the processing unit 702 is specifically configured to: obtain the at least one candidate cell from the network device.
  • the processing unit 702 is configured to: preferentially select the first handover command as the handover command to be preferentially executed.
  • the processing unit 702 is specifically configured to: determine the handover command to be preferentially executed according to the handover type of the conditional handover command, and the switching of the conditional handover command Types include inter-frequency handover or intra-frequency handover.
  • the processing unit 702 is specifically configured to: if the handover type of the conditional handover command is inter-frequency handover, determine the handover to be preferentially executed The command is a conditional handover command; or, if the handover type of the conditional handover command is intra-frequency handover, it is determined that the handover command to be preferentially executed is the first handover command.
  • the processing unit 702 is specifically configured to: according to the measurement result of the candidate target cell corresponding to the conditional handover command and the value indicated by the first handover command The measurement result of the candidate target cell determines the handover command to be executed preferentially.
  • the processing unit 702 specifically uses In: if the signal quality of the candidate target cell indicated by the first handover command is higher than the signal quality of the candidate target cell corresponding to the conditional handover command, then determine that the handover command to be preferentially executed is the first handover command; or, if the conditional handover command If the signal quality of the corresponding candidate target cell is higher than the signal quality of the candidate target cell indicated by the first handover command, the handover command to be preferentially executed is determined as a conditional handover command.
  • the processing unit 702 is specifically configured to: the candidate target cell corresponding to the conditional handover command and the candidate target cell indicated by the first handover command Whether it is the same cell to determine the handover command to be executed preferentially.
  • the processing unit 702 is specifically configured to: if The candidate target cell corresponding to the conditional handover command and the candidate target cell indicated by the first handover command are not the same cell, then determine that the handover command to be executed preferentially is the conditional handover command; or, if the candidate target cell corresponding to the conditional handover command is the same as the first When the candidate target cell indicated by the handover command is the same cell, it is determined that the handover command to be preferentially executed is the first handover command.
  • the processing unit 702 before acquiring the at least one handover command, is further configured to: acquire configuration parameters of at least one candidate cell from the network device The handover execution condition corresponding to at least one candidate cell; in determining the handover command to be preferentially executed according to at least one handover command, the processing unit 702 is specifically configured to: determine the handover command to be preferentially executed as the first handover command.
  • the processing unit is further configured to: retain the configuration parameters of the at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell.
  • the processing unit 702 is further configured to: if the candidate target cell indicated by the first handover command is the first candidate cell in the at least one candidate cell, delete the configuration parameter and the first candidate cell corresponding to the first candidate cell The handover execution conditions corresponding to the candidate cells, and the configuration parameters and corresponding handover execution conditions corresponding to the remaining candidate cells except the first candidate cell in the reserved at least one candidate cell; or, if the candidate target cell indicated by the first handover command does not In at least one candidate cell, the configuration parameters of the at least one candidate target cell and the handover execution condition corresponding to the at least one candidate cell are retained.
  • the processing unit 702 is specifically configured to: suspend evaluating whether at least one candidate cell satisfies the corresponding handover execution condition; perform cell handover according to the first handover command, And after executing the cell handover according to the first handover command, continue to evaluate whether at least one candidate cell satisfies the corresponding handover execution condition.
  • FIG. 8 provides a block diagram of functional units of another switching processing apparatus.
  • the handover processing apparatus 800 is applied to network equipment, and specifically includes: a processing unit 802 and a communication unit 803 .
  • the processing unit 802 is configured to control and manage the actions of the network device.
  • the processing unit 802 is configured to support the network device to perform the steps in FIG. 6 and other processes used in the technical solutions described in this application.
  • the communication unit 803 is used to support communication between the network device and other devices in the wireless communication system.
  • the switching processing apparatus 800 may further include a storage unit 801 for storing program codes and data of the network device.
  • the processing unit 802 may be a processor or a controller, for example, a CPU, DSP, ASIC, FPGA or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processing unit 802 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 803 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 801 may be a memory. When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the handover processing apparatus 800 involved in this embodiment of the present application may be the network device shown in FIG. 10 .
  • the processing unit 802 is configured to perform any step performed by the network device in the above method embodiments, and when performing data transmission such as sending, the communication unit 803 can be selectively invoked to complete corresponding operations. A detailed description will be given below.
  • the processing unit 802 is configured to: send at least one kind of information to the terminal, the at least one kind of information includes at least one of the first handover command, the second handover command, and the first information, and the at least one kind of information is used to determine the handover to be preferentially executed command; the first information includes configuration parameters of at least one candidate cell and handover execution conditions corresponding to at least one candidate cell, the first handover command is indicated by layer 1 or layer 2 signaling, and the second handover command is indicated by layer 3 signaling.
  • the at least one type of information includes at least one of the first handover command, the second handover command, and the first information. Since at least one type of information is used to determine the handover command to be preferentially executed, the first information includes the configuration parameters of at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell, and the first handover command is indicated by layer 1 or layer 2 signaling , the second handover command is indicated by layer 3 signaling, so this embodiment of the present application considers determining a handover command to be preferentially executed from the at least one handover command, and performing cell handover through the handover command to be preferentially executed to achieve at least one handover command. A handover processing process for handover commands, thereby ensuring the continuity and quality of network services and meeting the mobility requirements of terminals.
  • the first handover command is a handover command triggered by a distributed unit in the network device based on the measurement result of layer 1 or layer 2;
  • the second handover command is a handover command triggered by a centralized unit in the network device based on layer 3
  • the measurement report or the handover command triggered by the cell load is a handover command triggered by the cell load.
  • the centralized unit in the network device or the distributed unit in the network device avoids sending the first handover command and the second handover command simultaneously by notifying each other when triggering the handover or before triggering the handover.
  • the centralized unit in the network device considers the first handover command that is being triggered by the distributed unit in the network device when making the handover decision of the second handover command, and uses the first handover command indicated by the first handover command
  • the candidate target cell is used as the decision reference for handover triggering.
  • FIG. 9 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • the terminal 900 includes a processor 910 , a memory 920 , a communication interface 930 , and a communication bus for connecting the processor 910 , the memory 920 , and the communication interface 930 .
  • the memory 920 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 920 is used for related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • Communication interface 930 is used to receive and transmit data.
  • the processor 910 may be one or more CPUs, and if the processor 910 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 910 in the terminal 900 is configured to read one or more programs 921 stored in the memory 920, and perform the following operations: obtain at least one switching command, and the at least one switching command includes a first switching command, a second switching command, a At least one of the conditional handover commands, the first handover command is indicated by layer 1 or layer 2 signaling, and the second handover command is indicated by layer 3 signaling; the handover command to be preferentially executed is determined according to at least one handover command; The preferentially executed handover command performs cell handover.
  • each operation may adopt the corresponding description of the method embodiment shown in FIG. 5 or FIG. 6 above, and the terminal 900 may be used to execute the terminal-side method of the above method embodiment of the present application, which is not repeated here. Describe in detail.
  • the terminal acquires at least one handover command, and determines the handover command to be preferentially executed according to the at least one handover command, so as to execute cell handover according to the handover command to be preferentially executed.
  • at least one handover command includes at least one of a first handover command indicated by layer 1 or layer 2 signaling, a second handover command indicated by layer 3 signaling, and a conditional handover command
  • the embodiments of the present application consider The handover command to be preferentially executed is determined in the at least one handover command, and the cell handover is performed by the handover command to be preferentially executed to realize the handover processing process for the at least one handover command, thereby ensuring the continuity and quality of network services, And meet the mobility needs of the terminal.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1000 includes a processor 1010 , a memory 1020 , a communication interface 1030 , and a communication bus for connecting the processor 1010 , the memory 1020 , and the communication interface 1030 .
  • the memory 1020 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, and the memory 1020 is used to store related instructions and data.
  • Communication interface 1030 is used to receive and transmit data.
  • the processor 1010 may be one or more CPUs, and if the processor 1010 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 1010 in the network device 1000 is configured to read one or more programs 1021 stored in the memory 1020 to perform the following steps: send at least one kind of information to the terminal, the at least one kind of information includes a first switching command, a second switching command , at least one of the first information, at least one kind of information is used to determine the handover command to be executed preferentially; the first information includes the configuration parameters of at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell, the first handover command It is indicated by layer 1 or layer 2 signaling, and the second handover command is indicated by layer 3 signaling.
  • each operation may adopt the corresponding description of the method embodiment shown in FIG. 5 or FIG. 6 above, and the network device 1000 may be used to execute the method on the network device side of the above method embodiment of the present application. Details are not repeated here.
  • the network device sends at least one kind of information to the terminal, and the at least one kind of information includes at least one of the first handover command, the second handover command, and the first information. Since at least one type of information is used to determine the handover command to be preferentially executed, the first information includes the configuration parameters of at least one candidate cell and the handover execution condition corresponding to the at least one candidate cell, and the first handover command is indicated by layer 1 or layer 2 signaling , the second handover command is indicated by layer 3 signaling, so this embodiment of the present application considers determining a handover command to be preferentially executed from the at least one handover command, and performing cell handover through the handover command to be preferentially executed to achieve at least one handover command. A handover processing process for handover commands, thereby ensuring the continuity and quality of network services and meeting the mobility requirements of terminals.
  • An embodiment of the present application further provides a chip, wherein the chip includes a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the execution of the terminal or the management device in the above method embodiment. some or all of the steps described.
  • Embodiments of the present application further provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal as described in the foregoing method embodiments Or some or all of the steps described in Manage Devices.
  • Embodiments of the present application further provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause the computer to execute part or all of the description of the terminal or the management device in the foregoing method embodiments step.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable read-only memory, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM), or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may be located in a terminal or management device.
  • the processor and the storage medium may also exist in the terminal or management device as discrete components.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted via wireline (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) means from a website site, computer, server, or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital video disc (DVD)), or semiconductor media (eg, solid state disk (SSD)) Wait.

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Abstract

本申请实施例公开了一种切换处理方法与装置、终端、网络设备及存储介质；该方法包括：终端获取至少一种切换命令，至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示；终端根据至少一种切换命令确定待优先执行的切换命令；终端按照待优先执行的切换命令执行小区切换。可见，本申请实施例考虑从至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。

Description

切换处理方法与装置、终端、网络设备和存储介质 技术领域
本申请涉及通信技术领域，尤其涉及一种切换处理方法与装置、终端、网络设备和存储介质。
背景技术
在无线通信系统中，正在使用网络服务的终端可能面临因移动性需求、无线传输业务负荷量调整、激活操作维护、设备故障、小区负载等因素而导致当前网络服务中断或质量下降的问题。
为了保证网络服务的连续性和质量，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)制定的协议规范了相关切换流程，如无线资源控制(radio resource control，RRC)层的切换流程、条件切换(conditional handover，CHO)流程等，从而将终端由服务小区(源基站)的通信链路转移到目标小区(目标基站)。然而，随着通信场景的不断演变与细分，3GPP所制定的协议中针对切换处理方面的内容，还需要不断研究。
发明内容
本申请实施例提供一种切换处理方法与装置、终端、网络设备和存储介质，以期望实现针对至少一种切换命令的切换处理过程，从而保证网络服务的连续性和质量，以及满足终端的移动性需求。
第一方面，本申请实施例提供一种切换处理方法，包括：
终端获取至少一种切换命令，所述至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示；
所述终端根据所述至少一种切换命令确定待优先执行的切换命令；
所述终端按照所述待优先执行的切换命令执行小区切换。
第二方面，本申请实施例提供一种切换处理方法，包括：
网络设备向终端发送至少一种信息，所述至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，所述至少一种信息用于确定待优先执行的切换命令；
所述第一信息包括至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示。
第三方面，本申请实施例提供一种切换处理装置，所述装置包括处理单元，所述处理单元用于：
获取至少一种切换命令，所述至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示；
根据所述至少一种切换命令确定待优先执行的切换命令；
按照所述待优先执行的切换命令执行小区切换。
第四方面，本申请实施例提供一种切换处理装置，所述装置包括处理单元和通信单元，所述处理单元用于：
通过所述通信单元向终端发送至少一种信息，所述至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，所述至少一种信息用于确定待优先执行的切换命令；
所述第一信息包括至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示。
第五方面，本申请实施例提供一种终端，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述一个或多个程序包括用于执行本申请实施例第一方面中的步骤的指令。
第六方面，本申请实施例提供一种网络设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述一个或多个程序包括用于执行本申请实施例第二方面中的步骤的指令。
第七方面，本申请实施例提供了一种芯片，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本申请实施例第一方面或第二方面中所描述的部分或全部步骤。
第八方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第一方面或第二方面中所描述的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序，其中，所述计算机程序可操作来使计算机执行如 本申请实施例第一方面或第二方面中所描述的部分或全部步骤。该计算机程序可以为一个软件安装包。
可以看出，本申请实施例中，终端获取至少一种切换命令，并根据至少一种切换命令确定待优先执行的切换命令，从而按照该待优先执行的切换命令执行小区切换。由于至少一种切换命令包括通过层1或层2信令指示的第一切换命令、通过层3信令指示的第二切换命令、条件切换命令中的至少之一，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种无线通信系统的架构示意图；
图2是本申请实施例提供的一种以Xn接口的切换过程的流程示意图；
图3是本申请实施例提供的一种条件切换的流程示意图；
图4是本申请实施例提供的一种无线接入网的架构示意图；
图5是本申请实施例提供的一种切换处理方法的流程示意图；
图6是本申请实施例提供的又一种切换处理方法的流程示意图；
图7是本申请实施例提供的一种切换处理装置的功能单元组成框图；
图8是本申请实施例提供的又一种切换处理装置的功能单元组成框图；
图9是本申请实施例提供的一种终端的结构示意图；
图10是本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。针对本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种无线通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced Long Term Evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based Access to Unlicensed Spectrum，LTE-U)系统、非授权频谱上的NR(NR-based Access to Unlicensed Spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或者其他通信系统等。
需要说明的是，传统的无线通信系统所支持的连接数有限，且易于实现。然而，随着通信技术的发展，无线通信系统不仅将支持传统的无线通信系统，还将支持如设备到设备(device to device，D2D)通信、机器到机器(machine to machine，M2M)通信、机器类型通信(machine type communication，MTC)、车辆间(vehicle to vehicle，V2V)通信、车联网(vehicle to everything，V2X)通信、窄带物联网(narrow band internet of things，NB-IoT)通信等，因此本申请实施例的技术方案也可以应用于上述无线通信系统。
可选地，本申请实施例中的无线通信系统可以应用于波束赋形(beamforming)、载波聚合(carrier aggregation，CA)、双连接(dual connectivity，DC)或者独立(standalone，SA)部署场景等。
可选地，本申请实施例中的无线通信系统可以应用于非授权频谱。其中，非授权频谱也可以认为是共享频谱。或者，本实施例中的无线通信系统也可以应用于授权频谱。其中，授权频谱也可以认为是非共享频谱。
由于本申请实施例结合终端和网络设备描述了各个实施例，因此下面将对涉及的终端和网络设备进行具体描述。
具体的，终端可以是用户设备(user equipment，UE)、接入终端、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、智能终端、无线通信设备、用户代理或用户装置。终端还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、中继设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等，对此不作具体限定。
进一步的，终端可以部署在陆地上，包括室内或室外、手持、穿戴或车载；可以部署在水面上(如轮船等)；还可以部署在空中(如飞机、气球和卫星等)。
进一步的，终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
具体的，网络设备可以是用于与终端之间进行通信的设备，网络设备可以是GSM或CDMA通信系统中的基站(base transceiver station，BTS)、WCDMA通信系统中的基站(node B，NB)、LTE通信系统中的演进型基站(evolutional node B，eNB或eNodeB)、NR通信系统中的下一代基站(next generation evolved node B，ng-eNB)、NR通信系统中的下一代基站(next generation node B，gNB)或者核心网(core network，CN)中的其他设备，如访问和移动性管理功能(access and mobility management function，AMF)、用户计划功能(user plan function，UPF)等。另外，网络设备还可以是无线局域网WLAN中的接入点(access point，AP)、中继站、未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
需要说明的是，在一些网络部署中，网络设备可以是一个独立的节点以实现上述基站的所有功能；可以包括集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，例如gNB-CU和gNB-DU，以及还可以包括有源天线单元(active antenna unit，AAU)。其中，CU可以实现网络设备的部分功能，而DU可以实现网络设备的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)层、服务数据适配(service data adaptation protocol，SDAP)层、分组数据汇聚(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。另外，AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因此，在该网络部署下，高层信令(如RRC层信令)可以认为是由DU发送的，或者由DU和AAU发送的。可以理解的是，网络设备可以包括CU、DU、AAU中的至少一个。另外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网中的网络设备，对此不做具体限定。
进一步的，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(high elliptical orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
进一步的，网络设备可以为小区提供服务，而该小区内的终端可以通过传输资源(如频谱资源)与网络设备进行通信。其中，该小区可以包括小小区(small cell)、城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)和毫微微小区(femto cell)等。
示例性的，本申请实施例应用的无线通信系统，如图1所示。无线通信系统10可以包括网络设备110和终端120，而网络设备110可以是与终端120执行通信的设备。同时，网络设备110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120进行通信。
可选地，无线通信系统10还可以包括多个网络设备，并且每个网络设备的覆盖范围内可以包括其它数量的终端，在此不作具体限定。
可选地，无线通信系统10还可以包括网络控制器、移动管理实体等其他网络实体，在此不作具体限定。
可选地，无线通信系统10中的网络设备与终端之间，以及终端与终端之间的通信可以为无线通信或者有线通信，在此不作具体限制。
在对本申请实施例提供的切换处理方法进行详细介绍之前，再对本实施例所涉及的相关通信技术进行介绍。
1、切换流程
在无线通信系统中，正在使用网络服务的终端可能面临因移动性需要、无线传输业务负荷量调整、激活操作维护、设备故障、小区负载等因素而导致当前网络服务中断或质量下降的问题。因此，为了保证网络服务的连续性和质量，无线通信系统需要将该终端由服务小区(源基站)的通信链路转移到目标小区(目标基站)上，即执行切换过程。
具体的，网络设备可以向终端发送切换命令(即RRC信令)以使得终端从服务小区(即源基站)接入目标小区(目标基站)。然后，终端在收到该切换命令之后，按照该切换命令所包含的目标小区信息接入目标小区。此时，本申请实施例将该切换过程称为层3切换。下面以Xn接口切换过程为例进行示例说明。
请参阅图2，以Xn接口的切换流程分为以下三个阶段：
(1)切换准备：包括测量控制和报告、切换请求、切换请求确认等信令的传输过程。其中，在切换确认消息中包含目标基站生成的切换命令，源基站可以不用对目标基站生成的切换命令进行任何修改，直接将该切换命令转发给终端。
(2)切换执行：终端在收到该切换命令后立即执行切换过程，包括：终端断开与源基站的连接、同步到目标基站(如执行随机接入过程、发送RRC切换完成消息给第二网络设备等)、序列号(Sequence Number，SN)状态转移、数据转发等。
(3)切换完成：目标基站与AMF和UPF执行路径切换(path switch)以改变网络侧的通路，同时会释放源基站侧的终端上下文。
2、条件切换(conditional handover，CHO)流程
条件切换流程与上述切换流程最大的差别在于，服务小区(源基站)可以先向终端配置一个或多个候选小区的配置参数及其对应的切换执行条件(condExecutionCond)。然后，终端可以从该一个或多个候选小区中确定满足对应的切换执行条件的一个候选小区以作为待切换的候选目标小区。例如，切换执行条件为判断一个候选小区的信号质量是否比服务小区的信号质量高预定的偏移量。最后，终端将该候选目标小区对应的配置参数作为条件切换命令，并利用该条件切换命令接入该候选目标小区，以及与该候选目标小区取得同步等，例如向候选目标小区发起随机接入流程、发送RRC重配置完成消息等，从而实现切换至该候选目标小区。如果该一个或多个候选小区中还未确定出满足对应的切换执行条件的一个候选小区，则终端继续维持与源基站的RRC连接。
需要说明的是，条件切换可以避免切换准备时间过长，解决终端要切换的时候已经过晚的问题。例如，在高铁场景中，终端具有特定的运行轨迹，网络设备可以通过提前向终端配置一个或多个候选小区的配置参数，以及用于触发终端执行切换的条件，最终，终端可以通过该一个或多个候选小区中满足该条件的一个候选小区发起接入请求。
示例性的，请参阅图3，源基站通过条件切换命令(即RRC重配置消息)向终端配置候选目标小区的配置参数及其对应的切换执行条件。然后，终端评估候选目标小区是否满足切换执行条件，并在满足的情况下，发起随机接入流程、发送RRC重配置完成消息等以执行小区切换。最后，(候选)目标基站执行路径切换，以及通知源基站释放终端上下文等。
3、集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)
结合上述描述，NR通信系统中的网络设备可以具有不同的实现方式，可以是一个独立的节点以实现基站的所有功能，也可以分为CU和DU两部分。其中，一个CU可以连接多个DU，通常CU处理RRC信令，而DU处理层1或层2的信令和数据。下面以新空口无线接入网(NR wireless access network，NR-RAN)架构为例作一个示例说明。
示例性的，请参阅图4，NR-RAN由多个与5G核心网(5GC)连接的gNB组成。其中，各个gNB之间由Xn接口连接，各个gNB与5GC之间由NG接口连接。另外，gNB-CU(gNB central unit)与gNB-DU(gNB distributed unit)之间通过F1接口连接；一个gNB可包含一个gNB-CU以及一个或多个gNB-DU；一个gNB-DU只能与一个gNB-CU连接。一个gNB-CU可以与多个gNB-DU连接。gNB-CU和gNB-DU具体描述如下：
gNB-CU：一个逻辑节点，其用于承载gNB的RRC、SDAP和PDCP协议或者en-gNB的RRC和PDCP协议。该逻辑节点控制一个或多个gNB-DU的操作。
gNB-DU：一个逻辑节点，其用于承载gNB或en-gNB的RLC、MAC和PHY层，其操作部分由gNB-CU控制。其中，一个gNB-DU支持一个或多个小区，而一个小区仅由一个gNB-DU支持。
结合上述描述，本申请实施例提供一种切换处理方法的流程示意图，请参阅图5。其中，该方法可以应用于无线通信系统中的终端。该方法包括：
S510、终端获取至少一种切换命令。
其中，至少一种切换命令可以包括第一切换命令、第二切换命令、条件切换命令中的至少之一，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示。
需要说明的是，本申请实施例的终端可以接入服务小区以建立RRC连接，以及建立数据无线承载开展业务传输。同时，服务小区可以为该终端配置相关测量信息，以便该终端测量服务小区和邻小区，并上报测量报告等。然后，服务小区可以基于测量报告以及其他一些因素(如小区负载)等作出切换决策。
然而，当该终端因移动性需求(移动到服务小区边缘)、无线传输业务负荷量调整、激活操作维护、网络设备故障、服务小区的小区负载等因素而导致需要执行小区切换处理时，由于本申请实施例的网络设备采用分布式单元(CU)和集中式单元(DU)分离的无线接入网(RAN)架构，因此终端在执行小区切换处理过程中，本申请新引入了由网络设备(如服务小区对应的源基站)中的DU触发的切换命令(即第一切换命令)，以及由该网络设备中的CU触发的切换命令(即第二切换命令)。同时，还考虑可能存在由终端触发的条件切换命令。
基于此，在引入新的切换机制(第一切换命令)的情况下，终端可能需要处理一种或多种切换命令同时触发的场景。也就是说，终端可能获取第一切换命令、第二切换命令、条件切换命令中的至少之一。如何解决终端需要处理一种或多种切换命令同时触发的问题，下面本申请实施例将对其进行具体介绍。
具体的，第一切换命令是由网络设备中的分布式单元基于层1或层2的测量结果触发的切换命令；第二切换命令是由网络设备中的集中式单元基于层3的测量报告或者小区负载触发的切换命令。
需要说明的是，由于层1(layer 1，L1)为物理层，层2(layer 2，L2)可以包含MAC层、RLC层，层3(layer 3，L3)可以包含RRC层，因此本申请实施例的第一切换命令是由网络设备中的DU做出的切换决策，并通过层1或层2的信令触发终端实施切换；第二切换命令是由网络设备中的CU做出的切换决策，并通过层3的信令(如RRC信令)触发终端实施切换。同时，第一切换命令可以用于以L1或L2为中心的小区间移动性(L1/L2-centric inter-cell mobility)，而第二切换命令可以通过RRC重配置消息指示。
S520、终端根据至少一种切换命令确定待优先执行的切换命令。
S530、终端按照待优先执行的切换命令执行小区切换。
需要说明的是，由于终端可能需要处理同时触发的至少一种切换命令，因此本申请实施例需要考虑从该至少一种切换命令中确定一个待优先执行的切换命令，从而通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证通信的连续性和服务的质量，以及满足终端的移动性需求。下面本申请实施例将通过该至少一种切换命令所包含的切换命令的不同分别进行具体说明。
情形一：针对终端需要处理同时触发的第一切换命令和第二切换命令的场景，存在如下几种方案：
方案1：
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端按照协议规定确定至少一种切换命令中的一种切换命令以作为待优先执行的切换命令(如协议规定第二切换命令为待优先执行的切换命令)；或者；终端随机或自主选择至少一种切换命令中的一种切换命令以作为待优先执行的切换命令；或者，终端优先选择至少一种切换命令中的一种切换命令以作为待优先执行的切换命令。
可以理解的是，在终端需要处理同时触发的第一切换命令和第二切换命令的情况下，本示例可以按照由3GPP制定的通信协议中的协议规定、随机选择、自主选择或优先选择等不同原则从第一切换命令和第二切换命令中确定一个待优先执行的切换命令，从而实现在针对至少一种切换命令的处理过程中无线通信系统的灵活性和多样性。例如，终端可以优先选择第二切换命令以执行小区切换，而忽略第一切换命令。
方案2：
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据第二切换命令的切换类型确定待优先执行的切换命令，第二切换命令的切换类型包括以下一种：异频切换、同频切换、异系统切换。
其中，该异频切换可以用于指示第二切换命令所指示的候选目标小区的下行频点(下行载频)与服务小区的下行频点(下行载频)不同；该同频切换可以用于指示第二切换命令所指示的候选目标小区的下行频点与服务小区的下行频点相同；该异系统切换可以用于指示第二切换命令所指示的候选目标小区的通信系统与服务小区的通信系统不同。
需要说明的是，在终端需要处理同时触发的第一切换命令和第二切换命令的情况下，网络设备(如服务小区对应的源基站)中的CU在做出第二切换决策时通常需要考虑终端上报的测量结果或者多种其 他因素，比如终端上报的服务小区和邻小区的信号质量、小区负载、网络的移动性要求、终端的新业务需求等因素。另外，终端在连接态的测量过程中可以通过同频测量、异频测量、系统间测量等不同测量类型进行测量。基于此，本示例考虑通过第二切换命令的切换类型的不同来确定不同的待优先执行的切换命令，从而有利于分析切换处理过程中的切换需求和切换效率，以及保证无线通信系统的灵活性和多样性。
具体的，根据第二切换命令的切换类型确定待优先执行的切换命令，可以包括以下步骤：若第二切换命令的切换类型为异频切换或者异系统切换，则终端确定待优先执行的切换命令为第二切换命令；或者，若第二切换命令的切换类型为同频切换，则终端确定待优先执行的切换命令为第一切换命令。
需要说明的是，由于CU在做出第二切换决策时通常需要考虑终端上报的测量结果或者多种其他因素，因此在第二切换命令的切换类型为异频切换或者异系统切换的情况下，终端可以优先执行第二切换命令是比较合适的，从而满足实际切换需求。另外，在第二切换命令的切换类型为同频切换的情况下，为了提高切换效率，终端可以优先执行第一切换命令。
方案3：
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据第一切换命令所指示的候选目标小区的测量结果和第二切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令。
其中，测量结果可以包括参考信号接收功率(reference signal received power，RSRP)的测量值、参考信号接收质量(reference signal received quality，RSRQ)的测量值、信干噪比(signal to interference noise ratio，SINR)的测量值、信道质量、信号质量等。
需要说明的是，在终端需要处理同时触发的第一切换命令和第二切换命令的情况下，如果服务小区为Cell_1，第一切换命令所指示的候选目标小区为Cell_2，第二切换命令所指示的候选目标小区为Cell_3，则终端通常会对Cell_1和Cell_1的邻小区(包含Cell_2和Cell_3)执行相应测量以上报网络设备(如服务小区对应的源基站)。因此，终端可以维护并存储有Cell_2的测量结果和Cell_3的测量结果。基于此，本示例考虑通过第一切换命令所指示的候选目标小区的测量结果和第二切换命令所指示的候选目标小区的测量结果来确定待优先执行的切换命令，从而通过测量结果之间的比较实现针对至少一种切换命令的切换处理过程。
具体的，根据第一切换命令所指示的候选目标小区的测量结果和第二切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令，可以包括以下步骤：若第一切换命令所指示的候选目标小区的信号质量高于第二切换命令所指示的候选目标小区的信号质量，则终端确定待优先执行的切换命令为第一切换命令；或者，若第二切换命令所指示的候选目标小区的信号质量高于第一切换命令所指示的候选目标小区的信号质量，则终端确定待优先执行的切换命令为第二切换命令。
可以理解的是，本示例进一步考虑由终端优先选择信号质量较好的候选目标小区作为切换的目标小区以执行对应的切换命令，从而有利于保证切换后网络服务的质量。
方案4：
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令。
需要说明的是，在终端需要处理同时触发的第一切换命令和第二切换命令的情况下，本示例考虑通过第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令，从而通过是否为同一小区的判断结果实现针对至少一种切换命令的切换处理过程，进而有利于分析切换处理过程中的通信中断时长、切换需求和切换效率，以及保证无线通信系统的灵活性和多样性。
具体的，根据第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令，可以包括以下步骤：若第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区不为同一小区，则终端确定待优先执行的切换命令为第二切换命令；或者，若第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区为同一小区，则终端确定待优先执行的切换命令为第一切换命令。
需要说明的是，由于CU在做出第二切换决策时通常需要考虑终端上报的测量结果或者多种其他因素，因此在第二切换命令所指示的候选目标小区不是第一切换命令所指示的候选目标小区的情况下，则终端优先执行第二切换命令是比较合适的，从而满足实际切换需求。另外，在第二切换命令所指示的候选目标小区是第一切换命令所指示的候选目标小区的情况下，为了提高切换效率或者减少切换处理过程 的通信中断时长，则终端可以优先执行第一切换命令。
情形二：针对终端需要处理同时触发的第一切换命令和条件切换命令的场景
需要说明的是，结合上述“条件切换流程”中的描述，再对“情形二”中终端如何获取条件切换命令作一个示例说明。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和条件切换命令，则获取至少一种切换命令，可以包括以下步骤：终端获取来自网络设备的至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件；终端从至少一个候选小区中确定满足对应的切换执行条件的一个候选小区以作为待切换的候选目标小区，候选目标小区对应的配置参数为条件切换命令；终端获取来自网络设备的所述第一切换命令。
需要说明的是，本申请实施例中，终端接入服务小区以处于连接态。然后，服务小区发现终端支持条件切换，从而为终端预先配置至少一个候选小区、每个候选小区的配置参数以及每个候选小区对应的切换执行条件。其中，服务小区需要在与该至少一个候选小区协商之后才能获得该至少一个候选小区为终端配置的配置参数，而切换执行条件是由服务小区确定以发送给终端的。最后，终端收到该至少一个候选小区的配置参数之后，就开始评估该至少一个候选小区是否满足切换执行条件。在没有候选小区满足切换执行条件之前，终端继续与服务小区保持连接以进行信令和数据交互。
另外，可以理解的是，“情形二”主要分析终端从网络设备配置的至少一个候选小区中选择出满足切换执行条件的一个候选小区以触发条件切换命令，以及需要同时处理网络设备触发的第一切换命令的情况。
下面再对终端如何根据至少一种切换命令确定待优先执行的切换命令的如几种方案进行具体介绍。
方案1：
在一个可能的示例中，根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端优先选择第一切换命令以作为待优先执行的切换命令。
需要说明的是，在终端需要处理同时触发的第一切换命令和条件切换命令的情况下，由于条件切换命令是在终端评估由网络设备配置的至少一个候选小区满足切换执行条件之后触发的，并且至少一个候选小区也需要由网络设备预先配置，因此相比于由网络设备中的DU实时触发的第一切换命令，条件切换命令的触发存在切换及时性较低的问题。为了保证切换及时性和效率，本示例考虑优先执行第一切换命令。
方案2：
在一个可能的示例中，根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据条件切换命令的切换类型确定待优先执行的切换命令，条件切换命令的切换类型包括异频切换或者同频切换。
其中，该异频切换可以用于指示条件切换命令所指示的候选目标小区的下行频点(下行载频)与服务小区的下行频点(下行载频)不同；该同频切换可以用于指示条件切换命令所指示的候选目标小区的下行频点与服务小区的下行频点相同。
需要说明的是，在终端需要处理同时触发的第一切换命令和条件切换命令的情况下，本示例考虑通过条件切换命令的切换类型的不同来确定不同的待优先执行的切换命令，从而有利于分析切换处理过程中的切换需求和切换效率，以及保证无线通信系统的灵活性和多样性。
具体的，根据条件切换命令的切换类型确定待优先执行的切换命令，可以包括以下步骤：若条件切换命令的切换类型为异频切换，则终端确定待优先执行的切换命令为条件切换命令；或者，若条件切换命令的切换类型为同频切换，则终端确定待优先执行的切换命令为第一切换命令。
需要说明的是，在条件切换命令的切换类型为异频切换的情况下，终端可以优先执行条件切换命令是比较合适的，从而满足实际切换需求。另外，在条件切换命令的切换类型为同频切换的情况下，为了提高切换效率，终端可以优先执行第一切换命令。
方案3：
在一个可能的示例中，根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据条件切换命令对应的候选目标小区的测量结果和第一切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令。
其中，测量结果可以包括RSRP的测量值、RSRQ的测量值、SINR的测量值、信道质量、信号质量等。
需要说明的是，在终端需要处理同时触发的第一切换命令和条件切换命令的情况下，如果服务小区为Cell_1，第一切换命令所指示的候选目标小区为Cell_4，条件切换命令所指示的候选目标小区为Cell_5， 则终端通常会对Cell_1和Cell_1的邻小区(包含Cell_4)执行相应测量以上报网络设备(如服务小区对应的原基站)，以及终端通过网络设备预先配置的至少一个候选小区(包含Cell_5)执行相应测量。因此，终端可以存储有Cell_4的测量结果和Cell_5的测量结果。基于此，本示例考虑通过第一切换命令所指示的候选目标小区的测量结果和条件切换命令所指示的候选目标小区的测量结果来确定待优先执行的切换命令，从而通过测量结果之间的比较实现针对至少一种切换命令的切换处理过程。
具体的，根据条件切换命令对应的候选目标小区的测量结果和第一切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令，可以包括以下步骤：若第一切换命令所指示的候选目标小区的信号质量高于条件切换命令对应的候选目标小区的信号质量，则终端确定待优先执行的切换命令为第一切换命令；或者，若条件切换命令对应的候选目标小区的信号质量高于第一切换命令所指示的候选目标小区的信号质量，则终端确定待优先执行的切换命令为条件切换命令。
可以理解的是，本示例进一步考虑由终端优先选择信号质量较好的候选目标小区作为切换的目标小区以执行对应的切换命令，从而有利于保证切换后网络服务的质量。
方案4：
在一个可能的示例中，根据至少一种切换命令确定待优先执行的切换命令，可以包括以下步骤：终端根据条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令。
需要说明的是，在终端需要处理同时触发的第一切换命令和条件切换命令的情况下，本示例考虑通过第一切换命令所指示的候选目标小区与条件切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令，从而通过是否为同一小区的判断结果实现针对至少一种切换命令的切换处理过程，进而有利于分析切换处理过程中的切换及时性和切换效率，以及保证无线通信系统的灵活性和多样性。
具体的，根据条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令，可以包括以下步骤：若条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区不为同一小区，则终端确定待优先执行的切换命令为条件切换命令；或者，若条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区为同一小区，则终端确定待优先执行的切换命令为第一切换命令。
需要说明的是，由于终端触发条件切换命令时通常需要考虑网络配置至少一个候选小区的配置参数和对应的切换执行条件，因此在条件切换命令所指示的候选目标小区不是第一切换命令所指示的候选目标小区的情况下，则终端优先执行条件切换命令是比较合适的，从而满足实际切换需求。另外，在条件切换命令所指示的候选目标小区是第一切换命令所指示的候选目标小区的情况下，为了提高切换及时性和效率，则终端可以优先执行第一切换命令。
情形三：针对终端只需要处理触发的第一切换命令，而条件切换的切换执行条件还未满足的场景。
需要说明的是，在“情形三”中，由于终端只需要处理触发的第一切换命令，因此终端获取至少一种切换命令，可以理解为，终端获取网络设备的第一切换命令。另外，在终端获取网络设备的第一切换命令之前，终端还获取来自网络设备针对条件切换的相关配置信息。下面对其作一个示例说明。
在一个可能的示例中，若至少一种切换命令包括第一切换命令，则在获取至少一种切换命令之前，该方法还包括以下步骤：终端获取来自网络设备的至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件；根据至少一种切换命令确定待优先执行的切换命令，包括：终端确定待优先执行的切换命令为第一切换命令。
可以理解的是，由于终端只需要处理触发的第一切换命令，而条件切换的切换执行条件还未满足，因此终端可以直接优先执行第一切换命令。
具体的，在按照待优先执行的切换命令执行小区切换之后，该方法还包括以下步骤：终端保留至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件。
需要说明的是，对于配置了至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件的终端，如果该终端针对条件切换的切换执行条件还未满足，而终端又需要处理触发的第一切换命令，则终端在优先执行第一切换命令之后，可以继续保留网络配置的该至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，以便继续评估至少一个候选小区是否满足对应的切换执行条件，并在满足切换执行条件时执行条件切换。可见，终端继续保留网络配置的该至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，而无需再由网络针对条件切换进行重新配置，从而有利于降低网络信令开销。
进一步的，该方法还可以包括以下步骤：若第一切换命令所指示的候选目标小区为至少一个候选小 区中的第一候选小区，则终端删除第一候选小区对应的配置参数和第一候选小区对应的所述切换执行条件，以及保留至少一个候选小区中除第一候选小区外的其余候选小区对应的配置参数和对应的切换执行条件；或者，若第一切换命令所指示的候选目标小区不处于至少一个候选小区中，则终端保留至少一个候选目标小区的配置参数和至少一个候选小区对应的切换执行条件。
可以理解的是，在继续保留网络配置的该至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件的情况下，本示例进一步考虑第一切换命所指示的候选目标小区是否处于网络配置的至少一个候选小区中，如果第一切换命所指示的候选目标小区处于该至少一个候选小区，即第一切换命令所指示的候选目标小区为该至少一个候选小区中的第一候选小区，则终端需要从该至少一个候选小区的配置参数中删除第一候选小区对应的配置参数而保留其余配置参数，以及从至少一个候选小区对应的切换执行条件中删除第一候选小区对应的切换执行条件而保留其余切换执行条件，从而保证后续执行条件切换的稳定性。
例如，如果第一切换命令所指示的候选目标小区为Cell_7，而网络针对条件切换配置的候选小区有{Cell_7,Cell_8,Cell_9}，则终端在执行第一切换命令以接入Cell_7之后，终端删除Cell_7对应的配置参数和切换执行条件，并保留Cell_8对应的配置参数和切换执行条件，以及保留Cell_9对应的配置参数和切换执行条件，从而终端可以继续评估候选小区是否满足切换执行条件，并在满足时执行条件切换，进而降低网络信令开销。
具体的，按照待优先执行的切换命令执行小区切换，可以包括以下步骤：终端暂停评估至少一个候选小区是否满足对应的切换执行条件；终端按照第一切换命令执行小区切换，并在按照第一切换命令执行小区切换之后再继续评估至少一个候选小区是否满足对应的切换执行条件。
需要说明的是，对于配置了至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件的终端，如果该终端针对条件切换的切换执行条件还未满足，而终端又收到来自网络设备的第一切换命令，则终端可以通过物理层或MAC层向RRC层通知以暂停评估至少一个候选小区是否满足对应的所述切换执行条件，并在执行第一切换命令之后(即切换完成之后)再继续评估至少一个候选小区是否满足对应的切换执行条件，而无需再由网络针对条件切换进行重新配置，从而有利于降低网络信令开销。
可以看出，本申请实施例中，终端获取至少一种切换命令，并根据至少一种切换命令确定待优先执行的切换命令，从而按照该待优先执行的切换命令执行小区切换。由于至少一种切换命令包括通过层1或层2信令指示的第一切换命令、通过层3信令指示的第二切换命令、条件切换命令中的至少之一，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
与上述实施例一致，本申请实施例提供又一种切换处理方法的流程示意图，请参阅图6。其中，该切换处理方法可以应用于无线通信系统中的网络设备。该方法包括：
S610、网络设备向终端发送至少一种信息，该至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，该至少一种信息用于确定待优先执行的切换命令。
其中，第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件。
其中，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示。
需要说明的是，本申请实施例的终端可以接入服务小区以建立RRC连接，以及建立数据无线承载开展业务传输。同时，服务小区可以为该终端配置相关测量信息，以便该终端测量邻小区和服务小区，并上报测量报告。然后，服务小区可以基于测量报告以及其他一些因素(如小区负载)等作出切换决策。
然而，当该终端因移动性需求(移动到服务小区边缘)、无线传输业务负荷量调整、激活操作维护、网络设备故障、服务小区的小区负载等原因而导致需要执行小区切换处理时，由于本申请实施例的网络设备采用CU和DU分离的RAN架构，因此终端在执行小区切换处理过程中，本申请新引入了由网络设备(如服务小区对应的源基站)中的DU触发的切换命令(即第一切换命令)，以及由该网络设备中的CU触发的切换命令(即第二切换命令)。另外，由于网络设备还需要向终端配置针对条件切换的至少一个候选小区的配置信息和对应的切换执行条件，因此还可能存在由终端触发的条件切换命令。
基于此，在引入新的切换机制(第一切换命令)的情况下，终端可能需要处理一种或多种切换命令同时触发的场景。也就是说，终端可能获取第一切换命令、第二切换命令、条件切换命令中的至少之一。
具体的，第一切换命令是由网络设备中的分布式单元基于层1或层2的测量结果触发的切换命令；第二切换命令是由网络设备中的集中式单元基于层3的测量报告或者小区负载触发的切换命令。
需要说明的是，由于层1为物理层，层2可以包含MAC层、RLC层，层3可以包含RRC层，因此本申请实施例的第一切换命令是由网络设备中的DU做出的切换决策，并通过层1或层2的信令触发终端实施 切换；第二切换命令是由网络设备中的CU做出的切换决策，并通过层3的信令(如RRC信令)触发终端实施切换。
在一个可能的示例中，网络设备中的集中式单元或网络设备中的分布式单元在触发切换时或者在触发切换之前，通过相互通知以避免同时发送第一切换命令和第二切换命令。
可以理解的是，在集中式单元需要触发第二切换命令或已经触发了第二切换命令之后，集中式单元通知分布式单元自己将要触发第二切换命令或已经触发了第二切换命令，以便分布式单元暂时避免触发第一切换命令。
进一步可以理解的是，由于本申请实施例的网络设备可以采用CU和DU分离的RAN架构，因此如果CU在做出第二切换命令的切换决策时(或者触发第二切换命令之前)，CU可以通知DU将要触发或已经触发第二切换命令，从而避免DU再触发第一切换命令。同理，如果DU在做出第一切换命令的切换决策(或者触发第二切换之前)，DU可以通知CU将要触发或已经触发第一切换命令，从而避免CU再触发做第二切换决策。基于此，终端只存在接收第一切换命令或者第二切换命令的情况，从而有利于避免终端同时要处理第一切换命令和第二切换命令的情况。
在一个可能的示例中，网络设备中的集中式单元在做出第二切换命令的切换决策时考虑网络设备中的分布式单元正在发送的第一切换命令，并以第一切换命令所指示的候选目标小区作为切换触发的判决基准。
可以理解的是，由于本申请实施例的网络设备可以采用CU和DU分离的RAN架构，因此如果CU在做出第二切换命令的切换决策时，CU可以考虑DU正在触发的第一切换命令，并以第一切换命令所指示的候选目标小区作为切换触发的判决基准。也就是说，如果终端在执行第一切换命令之后由服务小区切换到目标小区，CU以目标小区作为切换触发的判决基准(如针对目标小区进行测量上报等)。基于此，终端只存在接收第一切换命令的情况，从而有利于避免终端同时要处理第一切换命令和第二切换命令的情况。
在一个可能的示例中，网络设备中的分布式单元在做出第一切换命令的切换决策时考虑网络设备中的集中式单元正在发送的第二切换命令，并以第二切换命令所指示的候选目标小区作为切换触发的判决基准。
可以理解的是，由于本申请实施例的网络设备可以采用CU和DU分离的RAN架构，因此如果DU在做出第一切换命令的切换决策时，DU可以考虑CU正在触发的第二切换命令，并以第二切换命令所指示的候选目标小区作为切换触发的判决基准。也就是说，如果终端在执行第二切换命令之后由服务小区切换到目标小区，DU以目标小区作为切换触发的判决基准。基于此，终端只存在接收第二切换命令的情况，从而有利于避免终端同时要处理第一切换命令和第二切换命令的情况。
可以看出，本申请实施例中，网络设备向终端发送至少一种信息，该至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一。由于至少一种信息用于确定待优先执行的切换命令，第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
上述主要从方法侧的角度对本申请实施例的方案进行了介绍。可以理解的是，终端或网络设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件与计算机软件的结合形式来实现。某个功能究竟以硬件或计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端或网络设备进行功能单元的划分。例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，只是一种逻辑功能划分，而实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图7提供了一种切换处理装置的功能单元组成框图。切换处理装置700应用于终端，具体包括：处理单元702和通信单元703。处理单元702用于对终端的动作进行控制管理。例如，处理单元702用于支持终端执行图5中的步骤以及用于本申请所描述的技术方案的其它过程。通信单元703用于支持终端与无线通信系统中的其他设备之间的通信。切换处理装置700还可以包括存储单元701，用于存储终端的程序代码和数据。
其中，处理单元702可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)、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、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框、模块和电路。处理单元702也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等等。通信单元703可以是通信接口、收发器、收发电路等，存储单元701可以是存储器。当处理单元702为处理器，通信单元703为通信接口，存储单元701为存储器时，本申请实施例所涉及的切换处理装置700可以为图9所示的终端。
具体实现时，处理单元702用于执行如上述方法实施例中由终端执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用通信单元703来完成相应操作。下面进行详细说明。
处理单元702用于：获取至少一种切换命令，至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示；根据至少一种切换命令确定待优先执行的切换命令；按照待优先执行的切换命令执行小区切换。
需要说明的是，图7所述实施例中各个操作的具体实现可以详见上述图5或图6所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过获取至少一种切换命令，并根据至少一种切换命令确定待优先执行的切换命令，从而按照该待优先执行的切换命令执行小区切换。由于至少一种切换命令包括通过层1或层2信令指示的第一切换命令、通过层3信令指示的第二切换命令、条件切换命令中的至少之一，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
在一个可能的示例中，第一切换命令是由网络设备中的分布式单元基于层1或层2的测量结果触发的切换命令；第二切换命令是由网络设备中的集中式单元基于层3的测量报告或者小区负载触发的切换命令。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具有用于：按照协议规定确定至少一种切换命令中的一种切换命令以作为待优先执行的切换命令；或者；随机或自主选择至少一种切换命令中的一种切换命令以作为待优先执行的切换命令；或者，优先选择至少一种切换命令中的一种切换命令以作为待优先执行的切换命令。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据第二切换命令的切换类型确定待优先执行的切换命令，第二切换命令的切换类型包括以下一种：异频切换、同频切换、异系统切换。
在一个可能的示例中，在根据第二切换命令的切换类型确定待优先执行的切换命令方面，处理单元702：若第二切换命令的切换类型为异频切换或者异系统切换，则确定待优先执行的切换命令为第二切换命令；或者，若第二切换命令的切换类型为同频切换，则确定待优先执行的切换命令为第一切换命令。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据第一切换命令所指示的候选目标小区的测量结果和第二切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令。
在一个可能的示例中，在根据第一切换命令所指示的候选目标小区的测量结果和第二切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令方面，处理单元702具体用于：若第一切换命令所指示的候选目标小区的信号质量高于第二切换命令所指示的候选目标小区的信号质量，则确定待优先执行的切换命令为第一切换命令；或者，若第二切换命令所指示的候选目标小区的信号质量高于第一切换命令所指示的候选目标小区的信号质量，则确定待优先执行的切换命令为所述第二切换命令。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和第二切换命令，则在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令。
在一个可能的示例中，在根据第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令方面，处理单元702具体用于：若第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区不为同一小区，则确定待优先执行的切换命令为第二切换命令；或者，若第一切换命令所指示的候选目标小区与第二切换命令所指示的候选目标小区为同一小区，则确定待优先执行的切换命令为第一切换命令。
在一个可能的示例中，若至少一种切换命令包括第一切换命令和条件切换命令，则在获取至少一种切换命令方面，处理单元702具体用于：获取来自网络设备的至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件；从至少一个候选小区中确定满足对应的切换执行条件的一个候选小区以作为待切换的候选目标小区，候选目标小区对应的配置参数为条件切换命令；获取来自网络设备的第一切换命令。
在一个可能的示例中，在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具有用于：优先选择第一切换命令以作为待优先执行的切换命令。
在一个可能的示例中，在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据条件切换命令的切换类型确定待优先执行的切换命令，条件切换命令的切换类型包括异频切换或者同频切换。
在一个可能的示例中，在根据条件切换命令的切换类型确定待优先执行的切换命令方面，处理单元702具体用于：若条件切换命令的切换类型为异频切换，则确定待优先执行的切换命令为条件切换命令；或者，若条件切换命令的切换类型为同频切换，则确定待优先执行的切换命令为第一切换命令。
在一个可能的示例中，在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据条件切换命令对应的候选目标小区的测量结果和第一切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令。
在一个可能的示例中，在根据条件切换命令对应的所述候选目标小区的测量结果和第一切换命令所指示的候选目标小区的测量结果确定待优先执行的切换命令方面，处理单元702具体用于：若第一切换命令所指示的候选目标小区的信号质量高于条件切换命令对应的候选目标小区的信号质量，则确定待优先执行的切换命令为第一切换命令；或者，若条件切换命令对应的候选目标小区的信号质量高于第一切换命令所指示的候选目标小区的信号质量，则确定待优先执行的切换命令为条件切换命令。
在一个可能的示例中，在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：根据条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令。
在一个可能的示例中，在根据条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区是否为同一小区来确定待优先执行的切换命令方面，处理单元702具体用于：若条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区不为同一小区，则确定待优先执行的切换命令为条件切换命令；或者，若条件切换命令对应的候选目标小区与第一切换命令所指示的候选目标小区为同一小区，则确定待优先执行的切换命令为第一切换命令。
在一个可能的示例中，若至少一种切换命令包括所述第一切换命令，则在获取至少一种切换命令之前，处理单元702还用于：获取来自网络设备的至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件；在根据至少一种切换命令确定待优先执行的切换命令方面，处理单元702具体用于：确定待优先执行的切换命令为第一切换命令。
在一个可能的示例中，在按照待优先执行的切换命令执行小区切换之后，处理单元还用于：保留至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件。
在一个可能的示例中，处理单元702还用于：若第一切换命令所指示的候选目标小区为至少一个候选小区中的第一候选小区，则删除第一候选小区对应的配置参数和第一候选小区对应的切换执行条件，以及保留至少一个候选小区中除第一候选小区外的其余候选小区对应的配置参数和对应的切换执行条件；或者，若第一切换命令所指示的候选目标小区不处于至少一个候选小区中，则保留至少一个候选目标小区的配置参数和至少一个候选小区对应的切换执行条件。
在一个可能的示例中，在按照待优先执行的切换命令执行小区切换方面，处理单元702具体用于：暂停评估至少一个候选小区是否满足对应的切换执行条件；按照第一切换命令执行小区切换，并在按照第一切换命令执行小区切换之后再继续评估至少一个候选小区是否满足对应的切换执行条件。
在采用集成的单元的情况下，图8提供了又一种切换处理装置的功能单元组成框图。切换处理装置800应用于网络设备，具体包括：处理单元802和通信单元803。处理单元802用于对网络设备的动作进行控制管理，例如，处理单元802用于支持网络设备执行图6中的步骤以及用于本申请所描述的技术方案的其它过程。通信单元803用于支持网络设备与无线通信系统中的其他设备之间的通信。切换处理装置800还可以包括存储单元801，用于存储网络设备的程序代码和数据。
其中，处理单元802可以是处理器或控制器，例如可以是CPU、DSP、ASIC、FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框、模块和电路。处理单元802也可以是实现计算功能的组合，例如包含一个 或多个微处理器组合、DSP和微处理器的组合等等。通信单元803可以是通信接口、收发器、收发电路等，存储单元801可以是存储器。当处理单元802为处理器，通信单元803为通信接口，存储单元801为存储器时，本申请实施例所涉及的切换处理装置800可以为图10所示的网络设备。
具体实现时，处理单元802用于执行如上述方法实施例中由网络设备执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用通信单元803来完成相应操作。下面进行详细说明。
处理单元802用于：向终端发送至少一种信息，至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，至少一种信息用于确定待优先执行的切换命令；第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示。
需要说明的是，图8所述实施例中各个操作的具体实现可以详见上述图5或图6所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过向终端发送至少一种信息，该至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一。由于至少一种信息用于确定待优先执行的切换命令，第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
在一个可能的示例中，第一切换命令是由网络设备中的分布式单元基于层1或层2的测量结果触发的切换命令；第二切换命令是由网络设备中的集中式单元基于层3的测量报告或者小区负载触发的切换命令。
在一个可能的示例中，网络设备中的集中式单元或网络设备中的分布式单元在触发切换时或者在触发切换之前，通过相互通知以避免同时发送第一切换命令和第二切换命令。
在一个可能的示例中，网络设备中的集中式单元在做出第二切换命令的切换决策时考虑网络设备中的分布式单元正在触发的第一切换命令，并以第一切换命令所指示的候选目标小区作为切换触发的判决基准。
请参阅图9，图9是本申请实施例提供的一种终端的结构示意图。其中，终端900包括处理器910、存储器920、通信接口930以及用于连接处理器910、存储器920、通信接口930的通信总线。
存储器920包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read-only memory，EPROM)或便携式只读存储器(compact disc read-only memory,CD-ROM)，该存储器920用于相关指令及数据。
通信接口930用于接收和发送数据。
处理器910可以是一个或多个CPU，在处理器910是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
终端900中的处理器910用于读取存储器920中存储的一个或多个程序921，执行以下操作：获取至少一种切换命令，至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示；根据至少一种切换命令确定待优先执行的切换命令；按照待优先执行的切换命令执行小区切换。
需要说明的是，各个操作的具体实现可以采用上述图5或图6所示的方法实施例的相应描述，终端900可以用于执行本申请上述方法实施例的终端侧的方法，在此不再具体赘述。
可见，终端获取至少一种切换命令，并根据至少一种切换命令确定待优先执行的切换命令，从而按照该待优先执行的切换命令执行小区切换。由于至少一种切换命令包括通过层1或层2信令指示的第一切换命令、通过层3信令指示的第二切换命令、条件切换命令中的至少之一，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
请参阅图10，图10是本申请实施例提供的一种网络设备的结构示意图。其中，网络设备1000包括处理器1010、存储器1020、通信接口1030以及用于连接处理器1010、存储器1020、通信接口1030的通信总线。
存储器1020包括但不限于是RAM、ROM、EPROM或CD-ROM，该存储器1020用于存储相关指令及数据。
通信接口1030用于接收和发送数据。
处理器1010可以是一个或多个CPU，在处理器1010是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
网络设备1000中的处理器1010用于读取存储器1020中存储的一个或多个程序1021以执行以下步骤：向终端发送至少一种信息，至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，至少一种信息用于确定待优先执行的切换命令；第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示。
需要说明的是，各个操作的具体实现可以采用上述图5或图6所示的方法实施例的相应描述，网络设备1000可以用于执行本申请上述方法实施例的网络设备侧的方法，在此不再具体赘述。
可见，网络设备向终端发送至少一种信息，该至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一。由于至少一种信息用于确定待优先执行的切换命令，第一信息包括至少一个候选小区的配置参数和至少一个候选小区对应的切换执行条件，第一切换命令通过层1或层2信令指示，第二切换命令通过层3信令指示，因此本申请实施例考虑从该至少一种切换命令中确定待优先执行的切换命令，并通过该待优先执行的切换命令执行小区切换以实现针对至少一种切换命令的切换处理过程，进而保证网络服务的连续性和质量，以及满足终端的移动性需求。
本申请实施例还提供了一种芯片，其中，该芯片包括处理器，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方法实施例中终端或管理设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端或管理设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括计算机程序，所述计算机程序可操作来使计算机执行如上述方法实施例中终端或管理设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、可擦除可编程只读存储器(erasable programmable ROM，EPROM)、电可擦可编程只读存储器(electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于终端或管理设备中。当然，处理器和存储介质也可以作为分立组件存在于终端或管理设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输。例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (54)

  1. 一种切换处理方法，其特征在于，包括：
    终端获取至少一种切换命令，所述至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示；
    所述终端根据所述至少一种切换命令确定待优先执行的切换命令；
    所述终端按照所述待优先执行的切换命令执行小区切换。
  2. 根据权利要求1所述的方法，其特征在于，所述第一切换命令是由网络设备中的分布式单元基于所述层1或所述层2的测量结果触发的切换命令；
    所述第二切换命令是由所述网络设备中的集中式单元基于所述层3的测量报告或者小区负载触发的切换命令。
  3. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则
    所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端按照协议规定确定所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令；或者；
    所述终端随机或自主选择所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令；或者，
    所述终端优先选择所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令。
  4. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则
    所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述第二切换命令的切换类型确定所述待优先执行的切换命令，所述第二切换命令的切换类型包括以下一种：异频切换、同频切换、异系统切换。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述第二切换命令的切换类型确定所述待优先执行的切换命令，包括：
    若所述第二切换命令的切换类型为所述异频切换或者所述异系统切换，则所述终端确定所述待优先执行的切换命令为所述第二切换命令；或者，
    若所述第二切换命令的切换类型为所述同频切换，则所述终端确定所述待优先执行的切换命令为所述第一切换命令。
  6. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则
    所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述第一切换命令所指示的候选目标小区的测量结果和所述第二切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令。
  7. 根据权利要求6所述的方法，其特征在于，所述根据所述第一切换命令所指示的候选目标小区的测量结果和所述第二切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令，包括：
    若所述第一切换命令所指示的候选目标小区的信号质量高于所述第二切换命令所指示的候选目标小区的信号质量，则所述终端确定所述待优先执行的切换命令为所述第一切换命令；或者，
    若所述第二切换命令所指示的候选目标小区的信号质量高于所述第一切换命令所指示的候选目标小区的信号质量，则所述终端确定所述待优先执行的切换命令为所述第二切换命令。
  8. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则
    所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令，包括：
    若所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区不为同一小区，则所述终端确定所述待优先执行的切换命令为所述第二切换命令；或者，
    若所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区为同一小区，则所述终端确定所述待优先执行的切换命令为所述第一切换命令。
  10. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述条件切换命令，则
    所述获取至少一种切换命令，包括：
    所述终端获取来自所述网络设备的至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件；
    所述终端从所述至少一个候选小区中确定满足对应的所述切换执行条件的一个候选小区以作为待切换的候选目标小区，所述候选目标小区对应的配置参数为所述条件切换命令；
    所述终端获取来自所述网络设备的所述第一切换命令。
  11. 根据权利要求10所述的方法，其特征在于，所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端优先选择所述第一切换命令以作为所述待优先执行的切换命令。
  12. 根据权利要求10所述的方法，其特征在于，所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述条件切换命令的切换类型确定所述待优先执行的切换命令，所述条件切换命令的切换类型包括异频切换或者同频切换。
  13. 根据权利要求12所述的方法，其特征在于，所述根据所述条件切换命令的切换类型确定所述待优先执行的切换命令，包括：
    若所述条件切换命令的切换类型为所述异频切换，则所述终端确定所述待优先执行的切换命令为所述条件切换命令；或者，
    若所述条件切换命令的切换类型为所述同频切换，则所述终端确定所述待优先执行的切换命令为所述第一切换命令。
  14. 根据权利要求10所述的方法，其特征在于，所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述条件切换命令对应的所述候选目标小区的测量结果和所述第一切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令。
  15. 根据权利要求14所述的方法，其特征在于，所述根据所述条件切换命令对应的所述候选目标小区的测量结果和所述第一切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令，包括：
    若所述第一切换命令所指示的候选目标小区的信号质量高于所述条件切换命令对应的所述候选目标小区的信号质量，则所述终端确定所述待优先执行的切换命令为所述第一切换命令；或者，
    若所述条件切换命令对应的所述候选目标小区的信号质量高于所述第一切换命令所指示的候选目标小区的信号质量，则所述终端确定所述待优先执行的切换命令为所述条件切换命令。
  16. 根据权利要求10所述的方法，其特征在于，所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端根据所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令。
  17. 根据权利要求16所述的方法，其特征在于，所述根据所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令，包括：
    若所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区不为同一小区，则所述终端确定所述待优先执行的切换命令为所述条件切换命令；或者，
    若所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区为同一小区，则所述终端确定所述待优先执行的切换命令为所述第一切换命令。
  18. 根据权利要求1或2所述的方法，其特征在于，若所述至少一种切换命令包括所述第一切换命令，则
    在所述获取至少一种切换命令之前，所述方法还包括：
    所述终端获取来自所述网络设备的至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件；
    所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端确定所述待优先执行的切换命令为所述第一切换命令。
  19. 根据权利要求18所述的方法，其特征在于，在所述按照所述待优先执行的切换命令执行小区切换之后，所述方法还包括：
    所述终端保留所述至少一个候选小区的配置参数和所述至少一个候选小区对应的所述切换执行条件。
  20. 根据权利要求19所述的方法，其特征在于，还包括：
    若所述第一切换命令所指示的候选目标小区为所述至少一个候选小区中的第一候选小区，则所述终端删除所述第一候选小区对应的配置参数和所述第一候选小区对应的所述切换执行条件，以及保留所述至少一个候选小区中除所述第一候选小区外的其余候选小区对应的配置参数和对应的所述切换执行条件；或者，
    若所述第一切换命令所指示的候选目标小区不处于所述至少一个候选小区中，则所述终端保留所述至少一个候选目标小区的配置参数和所述至少一个候选小区对应的所述切换执行条件。
  21. 根据权利要求18所述的方法，其特征在于，所述按照所述待优先执行的切换命令执行小区切换，包括：
    所述终端暂停评估所述至少一个候选小区是否满足对应的所述切换执行条件；
    所述终端按照所述第一切换命令执行小区切换，并在按照所述第一切换命令执行小区切换之后再继续评估所述至少一个候选小区是否满足对应的所述切换执行条件。
  22. 一种切换处理方法，其特征在于，包括：
    网络设备向终端发送至少一种信息，所述至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，所述至少一种信息用于确定待优先执行的切换命令；
    所述第一信息包括至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示。
  23. 根据权利要求22所述的方法，其特征在于，所述第一切换命令是由所述网络设备中的分布式单元基于所述层1或所述层2的测量结果触发的切换命令；
    所述第二切换命令是由所述网络设备中的集中式单元基于所述层3的测量报告或者小区负载触发的切换命令。
  24. 根据权利要求22所述的方法，其特征在于，所述网络设备中的集中式单元或所述网络设备中的分布式单元在触发切换时或者在触发切换之前，通过相互通知以避免同时发送所述第一切换命令和所述第二切换命令。
  25. 根据权利要求22所述的方法，其特征在于，所述网络设备中的集中式单元在做出所述第二切换命令的切换决策时考虑所述网络设备中的分布式单元正在触发的所述第一切换命令，并以所述第一切换命令所指示的候选目标小区作为切换触发的判决基准。
  26. 一种切换处理装置，其特征在于，所述装置包括处理单元，所述处理单元用于：
    获取至少一种切换命令，所述至少一种切换命令包括第一切换命令、第二切换命令、条件切换命令中的至少之一，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示；
    根据所述至少一种切换命令确定待优先执行的切换命令；
    按照所述待优先执行的切换命令执行小区切换。
  27. 根据权利要求26所述的装置，其特征在于，所述第一切换命令是由网络设备中的分布式单元基于所述层1或所述层2的测量结果触发的切换命令；
    所述第二切换命令是由所述网络设备中的集中式单元基于所述层3的测量报告或者小区负载触发的切换命令。
  28. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则所述处理单元用于：
    按照协议规定确定所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令；或者；
    随机或自主选择所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令；或者，优先选择所述至少一种切换命令中的一种切换命令以作为所述待优先执行的切换命令。
  29. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则所述处理单元用于：
    根据所述第二切换命令的切换类型确定所述待优先执行的切换命令，所述第二切换命令的切换类型包括以下一种：异频切换、同频切换、异系统切换。
  30. 根据权利要求29所述的装置，其特征在于，所述处理单元用于：
    若所述第二切换命令的切换类型为所述异频切换或者所述异系统切换，则确定所述待优先执行的切换命令为所述第二切换命令；或者，
    若所述第二切换命令的切换类型为所述同频切换，则确定所述待优先执行的切换命令为所述第一切换命令。
  31. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则所述处理单元用于：
    根据所述第一切换命令所指示的候选目标小区的测量结果和所述第二切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令。
  32. 根据权利要求31所述的装置，其特征在于，所述处理单元用于：
    若所述第一切换命令所指示的候选目标小区的信号质量高于所述第二切换命令所指示的候选目标小区的信号质量，则确定所述待优先执行的切换命令为所述第一切换命令；或者，
    若所述第二切换命令所指示的候选目标小区的信号质量高于所述第一切换命令所指示的候选目标小区的信号质量，则确定所述待优先执行的切换命令为所述第二切换命令。
  33. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述第二切换命令，则所述处理单元用于：
    根据所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令。
  34. 根据权利要求33所述的装置，其特征在于，所述处理单元用于：
    若所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区不为同一小区，则确定所述待优先执行的切换命令为所述第二切换命令；或者，
    若所述第一切换命令所指示的候选目标小区与所述第二切换命令所指示的候选目标小区为同一小区，则确定所述待优先执行的切换命令为所述第一切换命令。
  35. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令和所述条件切换命令，则所述处理单元用于：
    获取来自所述网络设备的至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件；
    从所述至少一个候选小区中确定满足对应的所述切换执行条件的一个候选小区以作为待切换的候选目标小区，所述候选目标小区对应的配置参数为所述条件切换命令；
    获取来自所述网络设备的所述第一切换命令。
  36. 根据权利要求35所述的装置，其特征在于，所述根据所述至少一种切换命令确定待优先执行的切换命令，包括：
    所述终端优先选择所述第一切换命令以作为所述待优先执行的切换命令。
  37. 根据权利要求35所述的装置，其特征在于，所述处理单元用于：
    根据所述条件切换命令的切换类型确定所述待优先执行的切换命令，所述条件切换命令的切换类型包括异频切换或者同频切换。
  38. 根据权利要求37所述的装置，其特征在于，所述处理单元用于：
    若所述条件切换命令的切换类型为所述异频切换，则确定所述待优先执行的切换命令为所述条件切换命令；或者，
    若所述条件切换命令的切换类型为所述同频切换，则确定所述待优先执行的切换命令为所述第一切换命令。
  39. 根据权利要求35所述的装置，其特征在于，所述处理单元用于：
    根据所述条件切换命令对应的所述候选目标小区的测量结果和所述第一切换命令所指示的候选目标小区的测量结果确定所述待优先执行的切换命令。
  40. 根据权利要求39所述的装置，其特征在于，所述处理单元用于：
    若所述第一切换命令所指示的候选目标小区的信号质量高于所述条件切换命令对应的所述候选目标小区的信号质量，则确定所述待优先执行的切换命令为所述第一切换命令；或者，
    若所述条件切换命令对应的所述候选目标小区的信号质量高于所述第一切换命令所指示的候选目标小区的信号质量，则确定所述待优先执行的切换命令为所述条件切换命令。
  41. 根据权利要求35所述的装置，其特征在于，所述处理单元用于：
    根据所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区是否为同一小区来确定所述待优先执行的切换命令。
  42. 根据权利要求41所述的装置，其特征在于，所述处理单元用于：
    若所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区不为同 一小区，则确定所述待优先执行的切换命令为所述条件切换命令；或者，
    若所述条件切换命令对应的所述候选目标小区与所述第一切换命令所指示的候选目标小区为同一小区，则确定所述待优先执行的切换命令为所述第一切换命令。
  43. 根据权利要求26或27所述的装置，其特征在于，若所述至少一种切换命令包括所述第一切换命令，则所述处理单元还用于：
    获取来自所述网络设备的至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件；
    以及所述处理单元用于：
    确定所述待优先执行的切换命令为所述第一切换命令。
  44. 根据权利要求43所述的装置，其特征在于，所述处理单元还用于：
    保留所述至少一个候选小区的配置参数和所述至少一个候选小区对应的所述切换执行条件。
  45. 根据权利要求44所述的装置，其特征在于，所述处理单元还用于：
    若所述第一切换命令所指示的候选目标小区为所述至少一个候选小区中的第一候选小区，则删除所述第一候选小区对应的配置参数和所述第一候选小区对应的所述切换执行条件，以及保留所述至少一个候选小区中除所述第一候选小区外的其余候选小区对应的配置参数和对应的所述切换执行条件；或者，
    若所述第一切换命令所指示的候选目标小区不处于所述至少一个候选小区中，则保留所述至少一个候选目标小区的配置参数和所述至少一个候选小区对应的所述切换执行条件。
  46. 根据权利要求43所述的装置，其特征在于，所述处理单元用于：
    暂停评估所述至少一个候选小区是否满足对应的所述切换执行条件；
    按照所述第一切换命令执行小区切换，并在按照所述第一切换命令执行小区切换之后再继续评估所述至少一个候选小区是否满足对应的所述切换执行条件。
  47. 一种切换处理装置，其特征在于，所述装置包括处理单元和通信单元，所述处理单元用于：
    通过所述通信单元向终端发送至少一种信息，所述至少一种信息包括第一切换命令、第二切换命令、第一信息中的至少之一，所述至少一种信息用于确定待优先执行的切换命令；
    所述第一信息包括至少一个候选小区的配置参数和所述至少一个候选小区对应的切换执行条件，所述第一切换命令通过层1或层2信令指示，所述第二切换命令通过层3信令指示。
  48. 根据权利要求47所述的装置，其特征在于，所述第一切换命令是由所述装置中的分布式单元基于所述层1或所述层2的测量结果触发的切换命令；
    所述第二切换命令是由所述装置中的集中式单元基于所述层3的测量报告或者小区负载触发的切换命令。
  49. 根据权利要求47所述的装置，其特征在于，所述装置中的集中式单元或所述装置中的分布式单元在触发切换时或者在触发切换之前，通过相互通知以避免同时发送所述第一切换命令和所述第二切换命令。
  50. 根据权利要求47所述的装置，其特征在于，所述装置中的集中式单元在做出所述第二切换命令的切换决策时考虑所述装置中的分布式单元正在触发的所述第一切换命令，并以所述第一切换命令所指示的候选目标小区作为切换触发的判决基准。
  51. 一种终端，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述一个或多个程序包括用于执行如权利要求1-21任一项所述的方法中的步骤的指令。
  52. 一种网络设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述一个或多个程序包括用于执行如权利要求22-25任一项所述的方法中的步骤的指令。
  53. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-21或22-25中任一项所述的方法。
  54. 一种芯片，包括处理器，其特征在于，所述处理器执行权利要求1-21或22-25中任一项所述方法的步骤。
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