WO2023051174A1 - Ran共享方法及装置、计算机可读存储介质 - Google Patents

Ran共享方法及装置、计算机可读存储介质 Download PDF

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Publication number
WO2023051174A1
WO2023051174A1 PCT/CN2022/116977 CN2022116977W WO2023051174A1 WO 2023051174 A1 WO2023051174 A1 WO 2023051174A1 CN 2022116977 W CN2022116977 W CN 2022116977W WO 2023051174 A1 WO2023051174 A1 WO 2023051174A1
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WIPO (PCT)
Prior art keywords
base station
target
handover
ran sharing
ran
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PCT/CN2022/116977
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English (en)
French (fr)
Inventor
范慧芳
张向东
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展讯半导体(南京)有限公司
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Publication of WO2023051174A1 publication Critical patent/WO2023051174A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00695—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using split of the control plane or user plane
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present application relates to the field of communication technologies, and in particular to a method and device for sharing RAN, and a computer-readable storage medium.
  • FIG. 1 is a schematic diagram of a working scene of a mobile base station (Relay) in the prior art.
  • the terminal 101 is connected to the mobile base station 102, the mobile base station 102 is connected to the primary base station (Donor gNB) 103, and the primary base station 103 is externally connected to the core network (Core Network, CN) 104.
  • the primary base station Donor gNB
  • the primary base station 103 is externally connected to the core network (Core Network, CN) 104.
  • New Radio (NR) and Long Term Evolution (LTE) can support Radio Access Network (RAN) sharing.
  • RAN sharing can be regarded as sharing and using the same base station by multiple operators.
  • the technical problem solved by the present invention is to provide a RAN sharing method and device, and a computer-readable storage medium, which can solve the problem of ensuring the service continuity of the service terminal when the mobile access network equipment supporting RAN sharing is moving, filling the existing Gaps in technology.
  • an embodiment of the present invention provides a method for sharing a radio access network RAN, the method including: executing a handover decision and selecting a target primary base station; wherein, at least according to the public land shared by RANs supported by multiple target candidate primary base stations Mobile communication network PLMN information, execute the handover decision, and select the target master base station among multiple target candidate master base stations.
  • the RAN sharing method further includes: sending a handover request to the target master base station; wherein, the handover request includes an indicator message, and the indicator message is used to indicate that the mobile base station supports the RAN sharing .
  • the RAN sharing method further includes: receiving a handover request acknowledgment message from the target primary base station; wherein the handover request acknowledgment message includes an RRC reconfiguration message, or the handover request acknowledgment message encapsulates the RRC Reconfiguration message.
  • the RRC reconfiguration message includes a handover timer, and the handover timer is started when the mobile base station receives a radio resource control RRC reconfiguration message, and is stopped after the mobile base station completes a random access procedure;
  • the duration of the handover timer is longer than the duration of the handover timer adopted when the mobile base station sharing function is not supported.
  • the RAN sharing method further includes: sending the RRC reconfiguration message to the mobile base station; wherein, the RRC reconfiguration message includes the handover timer.
  • the RAN sharing method further includes: interacting with one or more target candidate master base stations to share PLMN information supported by the RAN.
  • the source master station interacts with the target candidate master base station to support the PLMN information shared by the RAN, and when executing a handover decision, consider this information to select a suitable target master base station, so that the source master base station can be a mobile base station Selecting the target primary base station that satisfies the handover condition and supports the most PLMNs shared by the RAN minimizes the impact of mobile base station handover on data transmission of terminals accessing the mobile base station and improves service continuity of the terminals.
  • an embodiment of the present invention provides a method for sharing a radio access network RAN, which is used for a mobile base station.
  • the method includes: switching to a target master base station; A terminal in the network PLMN selects a target base station, and the target base station supports at least the PLMN on which the terminal works.
  • the RAN sharing method further includes: sending a handover request to the target base station.
  • the RAN sharing method further includes: obtaining a radio resource control RRC reconfiguration message from the source main base station; wherein, the RRC reconfiguration message includes a handover timer, and the handover timer is received when the mobile base station receives the The RRC reconfiguration message is started and stopped after the mobile base station completes the random access process; the duration of the handover timer is longer than the duration of the handover timer adopted when the mobile base station does not support the sharing function.
  • selecting a target base station for a terminal working on a PLMN not supported by the target primary base station includes: sending a measurement request to the terminal working on a PLMN not supported by the target primary base station; receiving a measurement result from the terminal ; Select one of one or more target candidate base stations supporting the PLMN as the target base station according to the measurement result.
  • the mobile base station sends a measurement request to the terminal of the PLMN that the target main base station does not support, and selects a target base station for it according to the measurement result, and the target base station supports at least the PLMN where the terminal works.
  • the above behavior guarantees When the mobile base station is handed over to the target main base station of LPLMN that does not support the terminal's work, a suitable target base station is selected for the terminal to ensure that the terminal can access the network normally.
  • an embodiment of the present invention provides a method for sharing a radio access network RAN, the method comprising: receiving a handover request from a source master base station; wherein the handover request includes an indicator message, and the indicator message is used for Instructing the mobile base station to support the RAN sharing.
  • the RAN sharing method further includes: sending a handover request acknowledgment message to the source master base station; wherein the handover request acknowledgment message includes a radio resource control RRC reconfiguration message, or the handover request acknowledgment message encapsulates The RRC reconfiguration message.
  • the RRC reconfiguration message includes a handover timer, the handover timer starts when the mobile base station receives the RRC reconfiguration message, and stops after the mobile base station completes the random access procedure; wherein, the The duration of the handover timer mentioned above is longer than the duration of the handover timer adopted when the mobile base station sharing function is not supported.
  • the RAN sharing method further includes: information about PLMN shared by the RAN that interacts with the source master base station and one or more target candidate master base stations.
  • an embodiment of the present invention provides a radio access network RAN sharing device, including: a target master base station selection module, configured to perform handover judgment and select a target master base station; wherein, at least according to multiple target candidate master base station
  • the supported RAN shares public land mobile communication network PLMN information, executes the handover decision, and selects the target master base station among multiple target candidate master base stations.
  • the target base station when the target master base station receives the handover request from the source master base station, and the handover request includes indication bit information for instructing the mobile base station to support the RAN sharing, the target base station will adjust the handover request confirmation message accordingly.
  • the configuration information of RRC reconfiguration such as configuring the handover timer to be longer, the above behavior provides sufficient time for the mobile base station to handover the terminal working in the PLMN that the target main base station does not support, and ensures that the mobile terminal can work normally. Connect to the network.
  • an embodiment of the present invention provides a wireless access network RAN sharing device, including: a handover module, configured to switch to a target master base station; a target base station selection module, configured to select a base station that is not supported by the target master base station
  • the terminal of the public land mobile communication network PLMN selects a target base station, and the target base station supports at least the PLMN on which the terminal works.
  • an embodiment of the present invention provides a wireless access network RAN sharing device, including: a receiving module, configured to receive a handover request from a source master base station; wherein, the handover request includes an indicator bit message, and the indicator bit message It is used to indicate that the mobile base station supports the RAN sharing.
  • an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a computer, the RAN sharing method in any aspect above is executed.
  • an embodiment of the present invention provides a wireless access network RAN sharing device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor runs the The computer program executes the radio access network RAN sharing method of any one of the above aspects.
  • the source primary base station performs a handover decision to select a target primary base station
  • the mobile base station performs a handover decision to select a target base station for a terminal working on a PLMN not supported by the target primary base station
  • the target base station supports at least the The PLMN where the terminal works, so that after the mobile base station is switched, a target base station that supports the PLMN where the terminal works can be selected for the affected terminal, thereby improving the continuity of terminal services.
  • the handover request includes an indicator bit message, and the indicator bit message is used to indicate that the mobile base station supports the RAN sharing, so as to indicate to the target master base station that the current handover request is a handover request shared by the RAN, so that the target master base station Configure the handover timer in the sent RRC reconfiguration message.
  • the RRC reconfiguration message includes a handover timer, and the duration of the handover timer is longer than the handover timer used when the mobile base station sharing function is not supported, so that more time can be reserved for the mobile base station to realize the handover of the terminal to the target base station.
  • the source master base station interacts with one or more target candidate master base stations to share the PLMN information supported by the RAN, so that the situation of the PLMN supported by other target candidate master base stations can be known, and when the source master base station performs a handover decision, it can choose to support the RAN
  • the number of shared PLMNs is as many as possible target candidate primary base stations, for example, selecting target candidate primary base stations that support all PLMNs shared by the RAN, so as to reduce the possibility that the terminal will be affected after switching the mobile base station.
  • FIG. 1 is a schematic diagram of a working scene of a mobile base station in the prior art
  • Fig. 2 is a kind of 5G network architecture diagram in the embodiment of the present application.
  • FIG. 3 is an interactive flowchart of a RAN sharing method in an embodiment of the present application
  • FIG. 4 is an interactive flowchart of another RAN sharing method in the embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a RAN sharing device in an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another RAN sharing device in an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems for data processing, for example: communication supporting fourth generation (fourth generation, 4G) access technology (such as long term evolution (long term evolution, LTE) access technology) system; or, the communication system may also be a communication system that supports the fifth generation (fifth generation, 5G) access technology (such as a new air interface (New Radio, NR) access technology); or, the communication system may also be a communication system that supports Third generation (third generation, 3G) access technology (such as universal mobile telecommunications system (universal mobile telecommunications system, UMTS) access technology) communication system; or, the communication system can also support multiple wireless technologies (such as support LTE access technology and NR access technology) communication system.
  • the communication system can also be adapted to future-oriented communication technologies.
  • the system architecture described in the embodiments of the present application is to illustrate the technical solutions of the embodiments of the present application more clearly, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • the method provided is applied to an NR system or a 5G network as an example for illustration.
  • the method provided in the embodiment of the present application can also be applied to other networks, for example, it can be applied to an evolved packet system (evolved packet system, EPS) network (that is, a so-called 4G network).
  • EPS evolved packet system
  • 4G network so-called 4G network
  • the network node executing the method provided in the embodiment of the present application can be replaced with a network node in the EPS network having the same or corresponding functions.
  • FIG. 2 is a diagram of a 5G network architecture in an embodiment of the present application.
  • the 5G network may include the following network functions (network functions, NF) entities: authentication server function (authentication server function, AUSF) entity, access and mobility management function (Access and Mobility Management Function, AMF) entity, data network (data network, DN), unified data management (unified data management, UDM) entity, policy control function (policy control function, PCF) entity, (wireless) access network ((radio) access network, (R)AN) entity , user plane function (user plane function, UPF) entity, user equipment (user equipment, UE), application function (application function, AF) entity, session management function (session management function, SMF) entity, location management function (Location Management Function, LMF) entities, etc.
  • network functions network functions
  • NF network functions
  • authentication server function authentication server function, AUSF
  • AMF Access and Mobility Management Function
  • AMF Access and Mobility Management Function
  • data network data network
  • DN data network
  • FIG. 2 is only an exemplary architecture diagram.
  • the 5G network architecture may also include other functional entities.
  • a network opening may also be included between the AF entity and the PCF entity.
  • NEF network exposure function
  • an entity may also be referred to as a network element or a device.
  • the UDM entity, AUSF entity, PCF entity, AMF entity, SMF entity, and LMF entity in FIG. 2 may also be collectively referred to as a control plane function (control plane function, CPF) entity, which is not specifically limited in this embodiment of the present application.
  • CPF control plane function
  • the (R)AN is a network composed of multiple access network devices, which implement functions of the wireless physical layer, resource scheduling and radio resource management, radio access control, and mobility management functions.
  • the access network device is connected to the UPF through the user plane interface N3, and is used to transmit the terminal (that is, the UE above, which can also be called a mobile station, a subscriber unit, a station, and a terminal device ( terminal equipment, TE) etc.) data.
  • the access network device establishes a control plane signaling connection with the AMF through the control plane interface N2 to implement functions such as wireless access bearer control.
  • AMF is mainly responsible for terminal authentication, terminal mobility management, network slice selection, SMF selection and other functions.
  • the AMF acts as the anchor point of the N1 and N2 signaling connection and provides the routing of the N1/N2 interface session management (session management, SM) message for the SMF; maintains and manages the status information of the terminal.
  • SMF is mainly responsible for all control plane functions of terminal session management, including UPF selection, network interconnection protocol (internet protocol, IP) address allocation, session quality of service (quality of service, QoS) management, obtaining policy and charging control from PCF (policy and charging control, PCC) strategy, etc.
  • UPF is responsible for data packet filtering, data transmission/forwarding, rate control, and generating billing information for terminals.
  • the LMF manages the overall coordination and scheduling of the resources required to register to the 5G Core Network (Core Network, CN) or the location of the terminal accessing the 5G CN. It can also calculate or verify the final position or velocity estimate, and can estimate the achieved accuracy.
  • Core Network Core Network
  • the terminal in the process of the terminal accessing the access network equipment, the terminal can directly access the access network equipment, or can access the access network equipment through a mobile base station (as shown in Figure 1, at this time, the access network equipment
  • the network access device is the primary base station), which is not limited in this application.
  • the mobile base station 102 is equivalent to a base station relative to the terminal 101 , that is, the terminal 101 may access the mobile base station 102 through the Uu interface.
  • the mobile base station 102 is equivalent to a terminal relative to the main base station 103 , that is, the mobile base station 102 accesses the main base station 103 through the Uu interface.
  • the protocol stack of the mobile base station 102 may include a physical layer, layer 2, a radio resource control (Radio Resources Control, RRC) layer, a non-access stratum (Non-Access Stratum, NAS) and so on.
  • RRC Radio Resource Control
  • NAS non-access stratum
  • the (R)AN entity, AMF entity, SMF entity, AUSF entity, UDM entity, UPF entity, PCF entity, and LMF entity in Figure 2 are just names, and the names do not limit the entities themselves.
  • the network elements or devices corresponding to these entities may also have other names, which are not specifically limited in this embodiment of the present application.
  • the UDM entity may be replaced by a user home server (home subscriber server, HSS) or a user subscription database (user subscription database, USD) or a database entity, etc., which will be uniformly described here and will not be described in detail below.
  • the method provided by the embodiment of this application can also be applied to the network slicing of the 5G network.
  • the network slicing technology is to divide a physical network into multiple virtual end-to-end networks. Between each virtual network, there are devices, Access technology, transmission path and core network are logically independent. Each network slice is composed of an independent network function or function combination instantiation, with different functional characteristics, and for different requirements and services. The separation of network slices enables different users and user groups to flexibly and dynamically define and customize network capabilities according to their different application scenarios and requirements without affecting each other.
  • a network slice includes CPF entities and UPF entities.
  • the CPF entity mainly completes access control and mobility management functions such as terminal access authentication, security encryption, and location registration, as well as session management functions such as the establishment, release, and modification of user plane transmission paths.
  • the UPF entity mainly completes user plane Data routing and forwarding functions.
  • the access network device in the embodiment of the present application may be a device used on the access network side to support terminal access to the communication system, for example, it may be a base station transceiver in a second generation (second generation, 2G) access technology communication system Base transceiver station (BTS) and base station controller (base station controller, BSC), node B (node B) and radio network controller (radio network controller, RNC) in the 3G access technology communication system, 4G access
  • BTS Base transceiver station
  • BSC base station controller
  • node B node B
  • RNC radio network controller
  • the terminal in this embodiment of the present application may be a device that provides voice or data connectivity to a user.
  • a terminal can be a cellular phone (cellular phone), a personal digital assistant (personal digital assistant, PDA), a wireless modem (modem), a handheld device (handheld), a laptop computer (laptop computer), a cordless phone (cordless phone) , wireless local loop (wireless local loop, WLL) station, tablet computer (pad) and so on.
  • devices that can access the communication system, communicate with the network side of the communication system, or communicate with other objects through the communication system can all be terminals in the embodiments of this application, for example, intelligent transportation Terminals and cars in smart homes, household devices in smart homes, power meter reading instruments in smart grids, voltage monitoring instruments, environmental monitoring instruments, video surveillance instruments in smart security networks, cash registers, etc.
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • 3GPP 3rd Generation Partnership Project
  • NR and LTE support RAN sharing, but how to share RAN in mobile base stations has not yet been discussed and resolved.
  • RAN sharing changes the protocol as follows:
  • Broadcast system information The list of shared public land mobile network (PLMN) that needs to be broadcast in the system information, as well as the specific parameters of each PLMN, such as cell identity, tracking area, and closed access Group identification (Closed Access Group, CAG) and other information.
  • PLMN public land mobile network
  • CAG closed access Group identification
  • MDT Minimization Drive Test
  • the mobile base station regionally supports RAN sharing (that is, the main base station (Donor gNB) supports RAN sharing in one area, and the main base station in another area does not support RAN sharing), when the mobile base station is in a different area When switching between primary base stations, the service continuity of the terminal is poor and even the terminal cannot access the network normally.
  • the main base station Donor gNB
  • the Public Lands Mobile Network can be regarded as a synonym for mobile communication networks.
  • the network of each mobile communication operator is a PLMN.
  • the PLMN logo is divided into two parts, one part is called the country code (Mobile country code, MCC), and the other part is called the mobile network code (Mobile Network Code, MNC).
  • MCC Mobile country code
  • MNC Mobile Network Code
  • the China Mobile terminal connected to the mobile base station may have a communication link failure and cannot communicate with the network normally.
  • the source main base station when the source main base station performs handover decision and selects the target main base station, it considers the PLMN information shared by the RAN supported by the target candidate main base station, so that the source main base station can select the mobile base station that meets the handover requirements.
  • the target main base station that is conditional and supports the most PLMNs shared by the RAN minimizes the impact of the handover of the mobile base station on the data transmission of the terminal accessing the mobile base station, and improves the service continuity of the terminal.
  • FIG. 3 is an interactive flowchart of a RAN sharing method in an embodiment of the present application.
  • the method may include S301-S304, optionally, the method may also include S305, S306 (S represents a step):
  • the source primary base station executes a handover decision, and selects a target primary base station;
  • the source primary base station sends a handover request to the target primary base station;
  • S303 The target master base station performs admission control
  • the target master base station sends a handover request confirmation message to the source master base station;
  • the source master base station sends an RRC reconfiguration message to the mobile base station;
  • the mobile base station performs a handover decision and selects a target base station, where the target base station supports at least the PLMN where the terminal works.
  • the handover decision may be performed at least according to PLMN information shared by RANs supported by multiple target candidate master base stations, and the target master base station may be selected from among the multiple target candidate master base stations.
  • the handover decision is performed at least according to the PLMN information shared by RANs supported by multiple target candidate primary base stations, and the step of selecting the target primary base station among the multiple target candidate primary base stations may include: selecting a RAN sharing support The target candidate master base station with the largest number of PLMNs is used as the target master base station.
  • the target candidate main base station 1 supports the PLMN networks of China Mobile, China Telecom, and China Unicom
  • the target candidate main base station 2 only supports the PLMN networks of China Mobile and China Telecom, so the target candidate main base station 1 is selected as the target main base station. base station.
  • the handover decision is performed, and the step of selecting the target primary base station among multiple target candidate primary base stations may include: supporting the RAN Selecting from target candidate master base stations whose shared PLMN quantity exceeds the preset quantity.
  • the preset number may be determined based on the upper limit of the number of PLMNs supporting RAN sharing, for example, the preset number may be equal to the upper limit of the number of PLMNs supporting RAN sharing multiplied by a preset ratio. Wherein, the preset ratio may be selected from 50% to 100%.
  • the upper limit of the number of PLMNs that support RAN sharing is 3, and the preset number can be set to 2 or 3, that is, when supporting 2 or 3 Select the target primary base station from the target candidate primary base stations of the PLMN supporting RAN sharing.
  • the handover decision is performed, and the step of selecting the target primary base station among multiple target candidate primary base stations may include: supporting the RAN Among the target candidate master base stations whose shared PLMNs exceed the preset number, the selection is made according to the handover algorithm of the source master base station.
  • the source master base station may decide to execute the handover according to the measurement result reported by the mobile base station, may also decide to execute the handover according to the current network load is too high, and may also use its own handover algorithm to make a handover decision.
  • selecting a target candidate primary base station whose number of PLMNs supporting RAN sharing exceeds a preset number can realize that the selected target candidate primary base station supports as many PLMNs as possible for RAN sharing.
  • a step of measuring and reporting the measurement result by the mobile base station may also be included.
  • the source master base station may send a measurement request to the mobile base station, and the mobile base station (or the mobile base station and the terminal) reports the measurement result to the source master base station after the measurement is completed.
  • the measurement request may be a radio resource management (Radio Resource Management, RRM) measurement request
  • the measurement may be an RRM measurement
  • the measurement result may be an RRM measurement result
  • the RRM measurement request may be measurement configuration information, instructing the mobile base station to perform RRM measurement.
  • the RRM measurement is mainly to support the mobility of the terminal and obtain the channel status of the surrounding cells of the terminal in time.
  • Measurement configuration may include: measurement object, reporting configuration, measurement identification, measurement quantity configuration, measurement opening threshold, measurement interval, measurement interval allocation, etc.; wherein, the measurement object defines the measurement target, including the measurement object identification (ID), and the corresponding
  • the specific configuration of the measurement target which includes intra-RAT (intra-RAT) NR measurement and inter-RAT (Inter-RAT) evolution of Universal Mobile Telecommunications System (UMTS) terrestrial wireless access ( Evolved-UMTS Terrestrial Radio Access, E-UTRA) measurement.
  • the reporting configuration defines the measurement reporting criteria, including the specific configuration of the measurement reporting identifier and the corresponding measurement reporting criteria.
  • the handover request may include an indicator bit message, where the indicator bit message is used to indicate that the mobile base station supports the RAN sharing.
  • the indication bit message may use a single bit (bit) or multiple bits. For example, when a single bit is used, 1 may be used to indicate that the mobile base station supports the RAN sharing, and 0 may be used to indicate that the mobile base station does not support the RAN sharing. . When multiple bits are used, all 1s may be used to indicate that the mobile base station supports the RAN sharing, and all 0s may be used to indicate that the mobile base station does not support the RAN sharing.
  • the handover request includes an indicator bit message
  • the indicator bit message is used to indicate that the mobile base station supports the RAN sharing, so as to indicate to the target main base station that the current handover request is a RAN shared handover request, So that the target master base station configures a proper handover timer length in the RRC reconfiguration message sent.
  • the HANDOVER REQUEST ACK message sent by the target master base station to the source master base station may include the RRC reconfiguration message; or the handover request confirmation message may encapsulate (encapsulate) the RRC reconfiguration message.
  • encapsulating the RRC reconfiguration message can be understood as that the handover command (including the RRC reconfiguration message) sent to the mobile terminal is contained in an acknowledgment (ACK) message in the form of an RRC container (container).
  • ACK acknowledgment
  • the RRC reconfiguration message includes a handover timer, and the handover timer starts when the mobile base station receives the RRC reconfiguration message, and stops after the mobile base station completes the random access procedure; wherein, the The duration of the handover timer mentioned above is longer than the duration of the handover timer adopted when the mobile base station sharing function is not supported.
  • the switching timer may be T304.
  • the target master base station can configure a longer T304 timer duration for the handover of the mobile base station, thereby reserving a longer handover time for the mobile base station.
  • the RRC reconfiguration message includes a handover timer, and the duration of the handover timer is longer than that of the handover timer used when the mobile base station does not support the sharing function, so that more time can be reserved for the mobile base station to The terminal is handed over to the target base station.
  • the RRC reconfiguration message sent by the source master base station to the mobile base station may include a handover timer.
  • the RRC reconfiguration message may also carry necessary information for accessing the target master base station, for example, at least including the target cell identity, the new cell radio network identity (cell-Radio Network Temporary Identity, C-RNTI), and the target master base station It can also carry the dedicated random access channel (Random Access Channel, RACH) resource set for accessing the target cell, the association between the RACH resource and the synchronization broadcast block (Synchronization Signal/PBCH, SSB), the RACH resource and Association between terminal-specific CSI-RS configurations, common RACH resources, system information of the target cell, etc.
  • RACH Random Access Channel
  • the mobile base station may select a target base station for a terminal working on a PLMN not supported by the target main base station after receiving the RRC reconfiguration message, and the target base station at least supports the PLMN that the terminal works on.
  • the mobile base station can select a target network that supports China Mobile for the terminal. base station.
  • the PLMN since there may be multiple target base stations supporting the PLMN, it may also be selected from multiple target base stations supporting the PLMN according to the measurement results of the terminal.
  • the step of selecting a target base station for a terminal working on a PLMN not supported by the target master base station may include: sending a measurement request to the terminal working on a PLMN not supported by the target master base station; receiving a measurement request from the terminal A measurement result; according to the measurement result, one of one or more target candidate base stations supporting the PLMN is selected as the target base station.
  • the handover decision is made for the one or more target candidate base stations supporting the PLMN, and after the handover decision is performed, a target base station is selected from the one or more target candidate base stations.
  • the measurement request may be an RRM measurement request
  • the measurement result may be an RRM measurement result
  • the terminal reports the measurement result, and the measurement report sent may include the pilot type in the measurement report configuration corresponding to the measurement identifier, such as a synchronization signal and a physical broadcast channel (Physical Broadcast Channel, PBCH) block (Synchronization Signal and PBCH block , SSB) and channel state information reference signal (channel-state information reference signal, CSI-RS) corresponding measurement results.
  • PBCH Physical Broadcast Channel
  • SSB Synchrom Broadcast Channel
  • CSI-RS channel state information reference signal
  • the RRM measurement request may be measurement configuration information, instructing the terminal to perform RRM measurement.
  • the source master base station may exchange the information about the PLMN shared by the RAN supported by one or more target candidate master base stations.
  • the source master base station interacts with one or more target candidate master base stations to share the PLMN information supported by the RAN, so that the situation of the PLMN supported by other target candidate master base stations can be known, and when the source master base station performs a handover decision , it is possible to select target candidate primary base stations that support as many PLMNs as possible for RAN sharing, for example, select target candidate primary base stations that support all PLMNs that support RAN sharing, thereby reducing the possibility that the terminal is affected after switching the mobile base station.
  • FIG. 4 is an interaction flowchart of another RAN sharing method in the embodiment of the present application.
  • the process includes:
  • S401 RAN shared PLMN information mutually supported by the source master base station, the target candidate master base station 1 and the target candidate master base station 2.
  • the target candidate master base station 1 and the target candidate master base station 2 shown in FIG. 4 are for example only. In the embodiment of the present application, there is no limit to the specific number of target candidate master base stations,
  • the source primary base station sends a measurement request to the mobile base station.
  • the mobile base station receives the measurement request.
  • S403 The mobile base station performs measurement.
  • S404 The mobile base station sends the measurement result to the source main base station.
  • the source master base station receives the measurement result.
  • S405 The source primary base station performs a handover decision, and selects a target primary base station.
  • the selected target master base station is the target candidate master base station 1 .
  • the source master base station sends a handover request to the target candidate master base station 1 .
  • target candidate master base station 1 receives the handover request.
  • the target candidate master base station 1 performs admission control.
  • the target candidate master base station 1 sends a handover request confirmation message to the source master base station.
  • the source master base station receives the handover request confirmation message.
  • S409 The source primary base station sends an RRC reconfiguration message to the mobile base station.
  • the mobile base station receives the RRC reconfiguration message.
  • S410 The mobile base station sends a measurement request to the terminal.
  • the terminal receives the measurement request.
  • S411 The terminal performs measurement.
  • S412 The terminal sends the measurement result to the mobile base station.
  • the mobile base station receives the measurement result.
  • the mobile base station performs a handover decision and selects a target base station, where the target base station supports at least the PLMN where the terminal works.
  • S414 The mobile base station sends a handover request to the target base station.
  • the target base station receives the handover request.
  • target base station may also perform subsequent operations such as admission control, which is not limited in this embodiment of the present application.
  • the embodiment of the present application also discloses a RAN sharing device, and the RAN sharing device may be the above-mentioned source master base station.
  • the RAN sharing device may include: a target master base station selection module, configured to perform a handover decision and select a target master base station; wherein, at least according to the public land mobile communication network PLMN information shared by RANs supported by multiple target candidate master base stations, perform the For the handover decision, select the target master base station from multiple target candidate master base stations.
  • a target master base station selection module configured to perform a handover decision and select a target master base station; wherein, at least according to the public land mobile communication network PLMN information shared by RANs supported by multiple target candidate master base stations, perform the For the handover decision, select the target master base station from multiple target candidate master base stations.
  • the RAN sharing device may further include: a handover request sending module, configured to send a handover request to the target master base station; wherein, the handover request includes an indicator bit message, and the indicator bit message is used to indicate the The mobile base station supports the RAN sharing.
  • a handover request sending module configured to send a handover request to the target master base station; wherein, the handover request includes an indicator bit message, and the indicator bit message is used to indicate the The mobile base station supports the RAN sharing.
  • the RAN sharing device may further include: a handover request confirmation message receiving module, configured to receive a handover request confirmation message from the target master base station; wherein the handover request confirmation message includes an RRC reconfiguration message, or, the The handover request acknowledgment message encapsulates the RRC reconfiguration message.
  • a handover request confirmation message receiving module configured to receive a handover request confirmation message from the target master base station; wherein the handover request confirmation message includes an RRC reconfiguration message, or, the The handover request acknowledgment message encapsulates the RRC reconfiguration message.
  • the RRC reconfiguration message includes a handover timer, the handover timer starts when the mobile base station receives the RRC reconfiguration message, and stops after the mobile base station completes the random access procedure; wherein , the duration of the handover timer is longer than the duration of the handover timer adopted when the mobile base station sharing function is not supported.
  • the RAN sharing device may further include: an RRC reconfiguration message sending module, configured to send the RRC reconfiguration message to the mobile base station; wherein, the RRC reconfiguration message includes the handover timer.
  • the RAN sharing apparatus may further include: an interaction module, configured to exchange PLMN information supported by RAN sharing with one or more target candidate master base stations.
  • FIG. 5 is a schematic structural diagram of a RAN sharing device in an embodiment of the present application.
  • the RAN sharing device may be the above-mentioned mobile base station.
  • the RAN sharing device may include: a switching module 51, configured to switch to a target primary base station; a target base station selection module 52, configured to select a target base station for a terminal working in a public land mobile communication network PLMN that is not supported by the target primary base station A base station, where the target base station at least supports the PLMN where the terminal works.
  • the RAN sharing apparatus may further include: a handover request sending module, configured to send a handover request to the target base station.
  • the RAN sharing device may further include: an RRC reconfiguration message acquisition module, configured to acquire a radio resource control RRC reconfiguration message from the source master base station; wherein, the RRC reconfiguration message includes a handover timer, and the The handover timer starts when the mobile base station receives the RRC reconfiguration message, and stops after the mobile base station completes the random access process; the duration of the handover timer is longer than the handover timing adopted when the mobile base station does not support the sharing function device duration
  • the target base station selection module includes: a measurement request sending submodule, configured to send a measurement request to the terminal working on a PLMN not supported by the target main base station; a measurement result receiving submodule, configured to receive a measurement result from the terminal Measurement results; a target base station selection submodule, configured to select one of one or more target candidate base stations supporting the PLMN as the target base station according to the measurement results.
  • the embodiment of the present application also discloses a RAN sharing device, and the RAN sharing device may be the above-mentioned target master base station.
  • the RAN sharing apparatus may include: a receiving module, configured to receive a handover request from a source primary base station; wherein, the handover request includes an indicator message, and the indicator message is used to indicate that the mobile base station supports the RAN sharing.
  • the RAN sharing apparatus may further include: a handover request acknowledgment message sending module, configured to send a handover request acknowledgment message to the source master base station; wherein the handover request acknowledgment message includes a radio resource control RRC reconfiguration message, Or, the handover request acknowledgment message encapsulates the RRC reconfiguration message.
  • a handover request acknowledgment message sending module configured to send a handover request acknowledgment message to the source master base station; wherein the handover request acknowledgment message includes a radio resource control RRC reconfiguration message, Or, the handover request acknowledgment message encapsulates the RRC reconfiguration message.
  • the RRC reconfiguration message includes a handover timer, the handover timer starts when the mobile base station receives the RRC reconfiguration message, and stops after the mobile base station completes the random access procedure; wherein, the The duration of the handover timer is longer than the duration of the handover timer adopted when the mobile base station sharing function is not supported.
  • the RAN sharing device may further include: an interaction module, configured to interact with the source master base station and one or more target candidate master base stations to share public land mobile communication network PLMN information supported by the RAN.
  • an interaction module configured to interact with the source master base station and one or more target candidate master base stations to share public land mobile communication network PLMN information supported by the RAN.
  • the above-mentioned RAN sharing device may correspond to a chip with a data processing function in the user equipment; or correspond to a chip module including a chip with a data processing function in the user equipment, or correspond to the user equipment.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a computer, the above RAN sharing method is executed.
  • the readable storage medium may be a computer-readable storage medium, for example, may include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory, and may also include an optical disk, a mechanical hard disk, a solid-state hard disk, and the like.
  • the embodiment of the present application also provides a RAN sharing device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the above-mentioned RAN when running the computer program. Share method.
  • FIG. 6 is a schematic structural diagram of another RAN sharing device in an embodiment of the present application.
  • the device 600 comprises at least one processor 601 and at least one memory 602 for storing computer programs and/or data.
  • the memory 602 is coupled with the processor 601 .
  • the processor 601 is configured to run the computer program and/or data stored in the memory 602 to implement the RAN sharing method described above.
  • the coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the memory 602 may also be located outside the device 600 .
  • the processor 601 can cooperate with the memory 602 .
  • Processor 601 may execute computer programs stored in memory 602 . At least one of the at least one memory may be included in the processor.
  • the apparatus 600 may further include a communication interface 603, which is used to communicate with other devices through a transmission medium, so that the modules used in the apparatus 600 can communicate with other devices.
  • the communication interface 603 may be a transceiver, a circuit, a bus, a module or other types of communication interfaces.
  • connection medium among the communication interface 603, the processor 601, and the memory 602 is not limited.
  • the memory 602 and the communication interface 603 are both connected to the processor 601 in FIG. 6 .
  • the memory 602, the communication interface 603, and the processor 601 can also be connected through a bus, and the bus can be divided into an address bus, a data bus, a control bus, and the like.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and may also be a volatile memory (volatile memory), such as Random-access memory (RAM).
  • a memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing computer programs and/or data.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application will be generated.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).
  • a magnetic medium for example, a floppy disk, a hard disk, or a magnetic tape
  • an optical medium for example, a digital video disc (digital video disc, DVD for short)
  • a semiconductor medium for example, SSD
  • each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit.
  • each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs, The software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits; /Units can be realized by means of hardware such as circuits

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Abstract

一种RAN共享方法及装置、计算机可读存储介质，所述方法包括：执行切换判决，选择目标主基站；其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。本发明可以针对支持RAN共享的移动接入网设备在移动时，保证服务的终端的业务连续性，填补现有技术中的空白。

Description

RAN共享方法及装置、计算机可读存储介质
本申请要求于2021年9月29日提交中国专利局、申请号为202111152722.5、发明名称为“RAN共享方法及装置、计算机可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种RAN共享方法及装置、计算机可读存储介质。
背景技术
参照图1，图1是现有技术中一种移动基站(Relay)的工作场景示意图。
具体地，终端101接入到移动基站102，移动基站102接入到主基站(Donor gNB)103，主基站103对外接入到核心网(Core Network，CN)104。
在现有技术中，新空口(New Radio，NR)和长期演进技术(Long Term Evolution，LTE)可以支持无线接入网(Radio Access Network，RAN)共享(sharing)，但当接入网设备发生移动时，即，基站是移动基站时，如何解决支持RAN共享时的接入网设备的移动性问题还尚未被讨论和解决。其中，RAN共享可以视为多个运营商共享使用同一个基站。
因此，亟需一种RAN共享方法，能够针对支持RAN共享的移动接入网设备在移动时，保证服务的终端的业务连续性问题，填补现 有技术中的空白。
发明内容
本发明解决的技术问题是提供一种RAN共享方法及装置、计算机可读存储介质，可以针对支持RAN共享的移动接入网设备在移动时，保证服务的终端的业务连续性问题，填补现有技术中的空白。
第一方面，本发明实施例提供一种无线接入网RAN共享方法，所述方法包括：执行切换判决，选择目标主基站；其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
可选的，所述RAN共享方法还包括：向所述目标主基站发送切换请求；其中，所述切换请求包含指示位消息，所述指示位消息用于指示所述移动基站支持所述RAN共享。
可选的，所述RAN共享方法还包括：从所述目标主基站接收切换请求确认消息；其中，所述切换请求确认消息包括RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
可选的，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到无线资源控制RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
可选的，所述RAN共享方法还包括：向所述移动基站发送所述RRC重配置消息；其中，所述RRC重配置消息中包含所述切换定时器。
可选的，所述RAN共享方法还包括：与一个或多个所述目标候选主基站交互支持的RAN共享的PLMN信息。
本申请实施例中，源主机站通过和目标候选主基站交互支持的RAN共享的PLMN信息，并在执行切换判决时，考虑这一信息选择合适的目标主基站，使得源主基站能为移动基站选择满足切换条件的且支持RAN共享的PLMN最多的目标主基站，尽可能的降低了移动基站切换对接入移动基站的终端的数据传输的影响，提高了终端的业务连续性。
第二方面，本发明实施例提供一种无线接入网RAN共享方法，用于移动基站，所述方法包括：切换至目标主基站；为工作在所述目标主基站不支持的公共陆地移动通信网络PLMN的终端选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
可选的，所述RAN共享方法还包括：向所述目标基站发送切换请求。
可选的，所述RAN共享方法还包括：从源主基站获取无线资源控制RRC重配置消息；其中，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到所述RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器的时长。
可选的，为工作在所述目标主基站不支持的PLMN的终端选择目标基站包括：向工作在所述目标主基站不支持的PLMN的所述终端发送测量请求；从所述终端接收测量结果；根据所述测量结果，在一个或多个支持所述PLMN的目标候选基站中选择一个作为所述目标基站。
本申请实施例中，移动基站向所述目标主基站不支持的PLMN的终端发送测量请求，并根据测量结果，为其选择一个目标基站，所述目标基站至少支持终端工作的PLMN，上述行为保证了移动基站切换到不支持终端工作的LPLMN的目标主基站时，为终端选择一个合适的目标基站，保证终端能正常接入网络。
第三方面，本发明实施例提供一种无线接入网RAN共享方法，所述方法包括：从源主基站接收切换请求；其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
可选的，所述RAN共享方法还包括：向所述源主基站发送切换请求确认消息；其中，所述切换请求确认消息包括无线资源控制RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
可选的，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
可选的，所述RAN共享方法还包括：与源主基站以及一个或多个目标候选主基站交互支持的RAN共享的公共陆地移动通信网络PLMN信息。
为解决上述技术问题，本发明实施例提供一种无线接入网RAN共享装置，包括：目标主基站选择模块，用于执行切换判决，选择目标主基站；其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
本申请实施例中，目标主基站接收到源主基站切换请求，且该切换请求包含用于指示移动基站支持所述RAN共享的指示位信息时，目标基站会相应的调整切换请求确认消息中的RRC重配置的配置信息，比如将切换定时器的时常配置的更长，上述行为给移动基站将工作在目标主基站不支持的PLMN的终端切换出去提供了充足的时间，保证了移动终端能正常接入网络。
第四方面，本发明实施例提供一种无线接入网RAN共享装置，包括：切换模块，用于切换至目标主基站；目标基站选择模块，用于 为工作在所述目标主基站不支持的公共陆地移动通信网络PLMN的终端，选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
第五方面，本发明实施例提供一种无线接入网RAN共享装置，包括：接收模块，用于从源主基站接收切换请求；其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
第六方面，本发明实施例提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被计算机运行时使得上述任一方面的无线接入网RAN共享方法被执行。
第七方面，本发明实施例提供一种无线接入网RAN共享装置，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述任一方面的无线接入网RAN共享方法。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本申请实施例中，源主基站执行切换判决，选择目标主基站，移动基站执行切换判决，为工作在所述目标主基站不支持的PLMN的终端选择目标基站，所述目标基站至少支持所述终端工作的PLMN，从而可以在切换移动基站之后，为受到影响的终端选择支持该终端工作的PLMN的目标基站，从而提高终端业务的连续性。
进一步，切换请求包含指示位消息，所述指示位消息用于指示所述移动基站支持所述RAN共享，从而可以向目标主基站指示当前的切换请求为RAN共享的切换请求，以使目标主基站在发送的RRC重配置消息中配置切换定时器。
进一步，RRC重配置消息中包含切换定时器，切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器的时长，从而可以为移动基站预留更多时间，以实现终端切换至目标基站。
进一步，源主基站与一个或多个目标候选主基站交互支持的 RAN共享的PLMN信息，从而可以了解其他目标候选主基站支持的PLMN的情况，在源主基站执行切换判决时，能够选择支持RAN共享的PLMN数量尽可能多的目标候选主基站，例如选择支持RAN共享的所有PLMN的目标候选主基站，从而降低切换移动基站之后终端受到影响的可能性。
附图说明
图1是现有技术中一种移动基站的工作场景示意图；
图2是本申请实施例中一种5G网络架构图；
图3是本申请实施例中一种RAN共享方法的交互流程图；
图4是本申请实施例中另一种RAN共享方法的交互流程图；
图5是本申请实施例中一种RAN共享装置的结构示意图；
图6是本申请实施例中另一种RAN共享装置的结构示意图。
具体实施方式
本申请实施例的技术方案可以应用于各种数据处理的通信系统，例如：支持第四代(fourth generation，4G)接入技术(例如长期演进(long term evolution，LTE)接入技术)的通信系统；或者，该通信系统也可以是支持第五代(fifth generation,5G)接入技术(例如新空口(New Radio，NR)接入技术)的通信系统；或者，该通信系统也可以是支持第三代(third generation，3G)接入技术(例如通用移动通讯系统(universal mobile telecommunications system，UMTS)接入技术)的通信系统；或者，该通信系统还可以是支持多种无线技术(例如支持LTE接入技术和NR接入技术)的通信系统。另外，该通信系统也可以适用于面向未来的通信技术。
本申请实施例描述的系统架构是为了更加清楚的说明本申请实 施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。本申请实施例中以提供的方法应用于NR系统或5G网络中为例进行说明。但是需要说明的是，本申请实施例提供的方法也可以应用于其他网络中，比如，可以应用在演进分组系统(evolved packet system，EPS)网络(即通常所说的4G网络)中。相应的，当本申请实施例提供的方法应用在EPS网络中时，执行本申请实施例提供的方法的网络节点替换为EPS网络中的具备相同或相应功能的网络节点即可。
参照图2，图2是本申请实施例中一种5G网络架构图。5G网络可以包括下述多个网络功能(network functions，NF)实体：鉴权服务器功能(authentication server function，AUSF)实体、接入和移动管理功能(Access and Mobility Management Function，AMF)实体、数据网络(data network，DN)、统一数据管理(unified data management，UDM)实体、策略控制功能(policy control function，PCF)实体、(无线)接入网((radio)access network，(R)AN)实体、用户面功能(user plane function，UPF)实体、用户设备(user equipment，UE)、应用功能(application function，AF)实体、会话管理功能(session management function，SMF)实体，位置管理功能(Location Management Function，LMF)实体等。
可以理解的是，图2仅为示例性架构图，除图2所示功能实体之外，该5G网络架构还可以包括其他功能实体，例如，在AF实体和PCF实体之间还可能包括网络开放功能(network exposure function，NEF)实体。其中，实体也可以称为网元或设备等。
图2中的UDM实体、AUSF实体、PCF实体、AMF实体、SMF实体、LMF实体也可以统称为控制面功能(control plane function，CPF)实体，本申请实施例对此不作具体限定。
具体的，(R)AN是由多个接入网设备组成的网络，实现无线物理 层功能、资源调度和无线资源管理、无线接入控制以及移动性管理功能。接入网设备通过用户面接口N3和UPF相连，用于传送终端(即上文中的UE，也可以称为移动台(mobile station)，用户单元(subscriber unit)，站台(station)，终端设备(terminal equipment，TE)等)的数据。接入网设备通过控制面接口N2和AMF建立控制面信令连接，用于实现无线接入承载控制等功能。AMF主要负责终端的认证，终端移动性管理，网络切片(network slice)选择，SMF选择等功能。AMF作为N1和N2信令连接的锚点并为SMF提供N1/N2接口会话管理(session management，SM)消息的路由；维护和管理终端的状态信息。SMF主要负责终端会话管理的所有控制面功能，包括UPF选择，网络互连协议(internet protocol，IP)地址分配，会话的服务质量(quality of service，QoS)管理，从PCF获取策略与计费控制(policy and charging control，PCC)策略等。UPF作为分组数据单元(packet data unit，PDU)会话连接的锚定点，负责对终端的数据报文过滤、数据传输/转发、速率控制、生成计费信息等。LMF管理注册到5G核心网(Core Network，CN)或访问5G CN的终端的位置所需的资源的总体协调和调度，还可以计算或验证最终位置或速度估计值，并可以估计达到的精度。
需要说明的是，在终端接入接入网设备的过程中，终端可以直接接入接入网设备，也可以通过移动基站接入接入网设备(如图1所示，此时，该接入网设备即主基站)，本申请不作限制。在图1中，移动基站102相对于终端101而言，相当于基站，即终端101可以是通过Uu口接入移动基站102。移动基站102相对于主基站103而言，相当于终端，即移动基站102通过Uu口接入主基站103。此时移动基站102的协议栈可以包括物理层、层2、无线资源控制(Radio Resources Control,RRC)层和非接入层(Non-Access Stratum，NAS)等。
需要说明的是，图2中的(R)AN实体、AMF实体、SMF实体、AUSF实体、UDM实体、UPF实体、PCF实体和LMF实体等仅是一个名字，名字对实体本身不构成限定。在5G网络以及未来其它的网 络中，这些实体所对应的网元或设备也可以是其他的名字，本申请实施例对此不作具体限定。例如，该UDM实体还有可能被替换为用户归属服务器(home subscriber server，HSS)或者用户签约数据库(user subscription database，USD)或者数据库实体，等等，在此进行统一说明，以下不再赘述。
本申请实施例提供的方法还可以应用在5G网络的网络切片中，网络切片技术是将一个物理网络切割成多个虚拟的端到端的网络，每个虚拟网络之间，包括网络内的设备、接入技术、传输路径和核心网，是逻辑独立的。每个网络切片由一个独立的网络功能或功能组合实例化构成，具备不同的功能特点，面向不同的需求和服务。网络切片的分离使得不同用户、用户组可以根据其不同应用场景和需求灵活、动态的定义和定制网络能力，而相互间不影响。
一个网络切片包括CPF实体和UPF实体。其中，CPF实体主要完成终端的接入鉴权、安全加密、位置注册等接入控制和移动性管理功能，以及用户面传输路径的建立、释放和更改等会话管理功能，UPF实体主要完成用户面数据的路由转发等功能。
本申请实施例中的接入网设备可以是接入网侧用于支持终端接入通信系统的设备，例如，可以是第二代(second generation，2G)接入技术通信系统中的基站收发信台(base transceiver station，BTS)和基站控制器(base station controller，BSC)、3G接入技术通信系统中的节点B(node B)和无线网络控制器(radio network controller，RNC)、4G接入技术通信系统中的演进型基站(evolved nodeB，eNB)、5G接入技术通信系统中的下一代基站(next generation nodeB，gNB)、发送接收点(transmission reception point，TRP)、中继节点(relay node)、接入点(access point，AP)等等。
本申请实施例中的终端可以是一种向用户提供语音或者数据连通性的设备。例如，终端可以为蜂窝电话(cellular phone)，个人数字助理(personal digital assistant，PDA)，无线调制解调器(modem)，手持 设备(handheld)，膝上型电脑(laptop computer)，无绳电话(cordless phone)，无线本地环路(wireless local loop，WLL)台，平板电脑(pad)等。随着无线通信技术的发展，可以接入通信系统、可以与通信系统的网络侧进行通信，或者通过通信系统与其它物体进行通信的设备都可以是本申请实施例中的终端，譬如，智能交通中的终端和汽车、智能家居中的家用设备、智能电网中的电力抄表仪器、电压监测仪器、环境监测仪器、智能安全网络中的视频监控仪器、收款机等等。
在现有技术中，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)只对基于移动基站进行了研究，尚未标准化。目前NR和LTE时支持RAN共享的，但在移动基站中如何RAN共享还尚未被讨论和解决。
在基于NR和LTE的RAN共享技术中，RAN共享对协议的改动如下：
1)广播系统信息：需要在系统信息中广播支持的共享的公共陆地移动网(Public Land Mobile Network，PLMN)的列表，以及每个PLMN的具体参数，如，小区标识，跟踪区域，封闭接入组标识(Closed Access Group,CAG)等信息。
2)单(per)PLMN做接入控制
3)单PLMN做数据量测量
4)多PLMN支持最小化路测(Minimization Drive Test，MDT)。
然而，在移动基站区域性支持RAN共享的情况下(即在一个区域的主基站(Donor gNB)中支持RAN共享，在另一个区域中的主基站不支持RAN共享)，当移动基站在不同区域的主基站间切换时，终端业务的连续性较差甚至导致终端无法正常接入网络。
具体而言，公众陆地移动通信网络(Public Lands Mobile Network，PLMN)可视为移动通信网络的代名词，具体到各个国家，每个移动通信运营商的网络为一个PLMN，以我国为例，中国移动、中国联通 和中国电信的网络为不同的PLMN，PLMN标识分为两部分，一部分称为国家代码(Mobile country code，MCC)，另外一部分称为移动网络代码(Mobile Network Code，MNC)，例如中国移动的PLMN为46000，中国联通的PLMN为46001。
如果移动基站从支持中国移动的主基站切换至支持中国电信的主基站，可能导致接入到移动基站的中国移动的终端可能会发生通信链路失败，无法正常和网络进行通信。
为了解决该问题，在本申请实施例中，源主基站在执行切换判决，选择目标主基站时，考虑目标候选主基站支持的RAN共享的PLMN信息，使得源主基站能为移动基站选择满足切换条件的且支持RAN共享的PLMN最多的目标主基站，尽可能降低移动基站切换对接入移动基站的终端的数据传输的影响，提高终端的业务连续性。
参照图3，图3是本申请实施例中一种RAN共享方法的交互流程图。所述方法可以包括S301-S304，可选地，所述方法还可以包括S305、S306(S表示步骤(step))：
S301：源主基站执行切换判决，选择目标主基站；
S302：源主基站向目标主基站发送切换请求；
S303：目标主基站执行接纳控制；
S304：目标主基站向源主基站发送切换请求确认消息；
S305：源主基站向移动基站发送RRC重配置消息；
S306：移动基站执行切换判决，选择目标基站，目标基站至少支持终端工作的PLMN。
S301在具体实现时，可以至少根据多个目标候选主基站支持的RAN共享的PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
进一步地，至少根据多个目标候选主基站支持的RAN共享的 PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站的步骤可以包括：选择支持RAN共享的PLMN数量最多的目标候选主基站作为目标主基站。
具体地，例如，目标候选主基站1支持中国移动、中国电信、中国联通的PLMN网络，目标候选主基站2只支持中国移动和中国电信的PLMN网络，那么将目标候选主基站1选为目标主基站。
更进一步地，至少根据多个目标候选主基站支持的RAN共享的PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站的步骤可以包括：在支持RAN共享的PLMN数量超出预设数量的目标候选主基站中进行选择。
其中，所述预设数量可以基于支持RAN共享的PLMN数量的上限值确定，例如预设数量可以等于支持RAN共享的PLMN数量的上限值乘以预设比例。其中，所述预设比例可以选自50％至100％。
具体地，以中国移动、中国联通和中国电信为例，支持RAN共享的PLMN数量的上限值为3个，可以设置预设数量为2个或3个，也即在支持2个或3个支持RAN共享的PLMN的目标候选主基站中，选择目标主基站。
更进一步地，至少根据多个目标候选主基站支持的RAN共享的PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站的步骤可以包括：在支持RAN共享的PLMN数量超出预设数量的目标候选主基站中，根据源主基站的切换算法进行选择。
具体地，源主基站可以根据移动基站上报的测量结果决定执行切换，还可以根据当前网络负载过高决定执行切换，还可以采用自身的切换算法进行切换判决。
具体地，选择支持RAN共享的PLMN数量超出预设数量的目标候选主基站，可以实现选择得到的目标候选主基站支持RAN共享的 PLMN数量尽可能多。
更进一步地，在S301之前，还可以包括移动基站测量并上报测量结果的步骤。
具体地，源主基站可以向移动基站发送测量请求，移动基站(或移动基站以及终端)完成测量后，向源主基站上报测量结果。
进一步地，所述测量请求可以为无线资源管理(Radio Resource Management，RRM)测量请求，所述测量可以为RRM测量，所述测量结果可以为RRM测量结果。
其中，所述RRM测量请求可以为测量配置信息，指示移动基站进行RRM测量。
RRM测量主要是为支持终端的移动性，及时获得终端当前周围小区的信道状况。测量配置可以包括：测量对象，上报配置，测量标识，测量量配置，测量开启门限，测量间隔，测量间隔分配等；其中，测量对象定义了测量目标，其中包括测量对象标识(ID)，以及对应测量目标的具体配置，这里包括无线接入技术内部(intra-RAT)NR测量和无线接入技术相互(Inter-RAT)进化的通用移动通信系统(Universal Mobile Telecommunications System，UMTS)陆地无线接入(Evolved-UMTS Terrestrial Radio Access，E-UTRA)测量。上报配置定义了测量上报准则，其中包括测量上报标识和对应的测量上报准则的具体配置。
S302在具体实现时，所述切换请求可以包含指示位消息，所述指示位消息用于指示所述移动基站支持所述RAN共享。
其中，所述指示位消息可以采用单个比特(bit)或者多个比特，例如采用单个比特时，可以采用1指示所述移动基站支持所述RAN共享，采用0指示移动基站不支持所述RAN共享。采用多个比特时，可以采用全1指示所述移动基站支持所述RAN共享，采用全0指示移动基站不支持所述RAN共享。
在本发明实施例中，切换请求包含指示位消息，所述指示位消息用于指示所述移动基站支持所述RAN共享，从而可以向目标主基站指示当前的切换请求为RAN共享的切换请求，以使目标主基站在发送的RRC重配置消息中配置合适的切换定时器的长度。
S303在具体实现时，可以采用常规的接纳控制方法，本申请对此不作限制。
S304在具体实现时，目标主基站向源主基站发送的切换请求确认(HANDOVER REQUEST ACK)消息中，可以包括RRC重配置消息；或者切换请求确认消息可以封装(encapsulation)RRC重配置消息。
其中，封装RRC重配置消息可以理解为向移动终端发送的切换命令(包含RRC重配置消息)是以RRC容器(container)的方式包含在确认(ACK)消息中。
进一步地，RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到无线资源控制RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
在具体应用中，所述切换定时器可以为T304。目标主基站可以为移动基站切换配更长的T304定时器时长，从而为移动基站预留更长的切换时间。
在本发明实施例中，RRC重配置消息中包含切换定时器，切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器的时长，从而可以为移动基站预留更多时间，以实现终端切换至目标基站。
S305在具体实现时，源主基站向移动基站发送的RRC重配置消息中可以包含切换定时器。
进一步地，RRC重配置消息中还可以携带有接入目标主基站的 必要信息，例如至少包括目标小区标识，新的小区无线网络标识(cell-Radio Network Temporary Identity,C-RNTI),目标主基站的安全算法标识，还可以携带接入目标小区的专用随机接入信道(Random Access Channel,RACH)资源集合、RACH资源与同步广播块(Synchronization Signal/PBCH,SSB)之间的关联、RACH资源和终端专用的CSI-RS配置之间的关联、公共RACH资源、目标小区的系统信息等。
S306在具体实现时，移动基站收到RRC重配置消息，可以为工作在所述目标主基站不支持的PLMN的终端选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
作为一个非限制性的例子，在存在目标主基站不支持的PLMN的情况下，例如目标主基站不支持中国移动，对于工作在中国移动的终端，移动基站可以为该终端选择支持中国移动的目标基站。
进一步地，由于可能存在多个支持所述PLMN的目标基站，因此还可以根据终端的测量结果，在多个支持所述PLMN的目标基站中选择。
具体地，为工作在所述目标主基站不支持的PLMN的终端选择目标基站的步骤可以包括：向工作在所述目标主基站不支持的PLMN的所述终端发送测量请求；从所述终端接收测量结果；根据所述测量结果，在一个或多个支持所述PLMN的目标候选基站中选择一个作为所述目标基站。
其中，切换判决是针对所述一个或多个支持所述PLMN的目标候选基站进行的，执行完切换判决之后，在一个或多个目标候选基站中选定一个目标基站。
其中，所述测量请求可以为RRM测量请求，所述测量结果可以为RRM测量结果。
在具体实施中，终端上报测量结果，发送的测量报告可以包括测 量标识对应的测量上报配置中的导频类型，如同步信号和广播物理信道(Physical Broadcast Channel，PBCH)块(Synchronization Signal and PBCH block,SSB)和信道状态信息参考信号(channel-state information reference signal，CSI-RS)对应的测量结果。
其中，所述RRM测量请求可以为测量配置信息，指示终端进行RRM测量。
进一步地，源主基站可以与一个或多个目标候选主基站交互支持的RAN共享的PLMN信息。
在本发明实施例中，源主基站与一个或多个目标候选主基站交互支持的RAN共享的PLMN信息，从而可以了解其他目标候选主基站支持的PLMN的情况，在源主基站执行切换判决时，能够选择支持RAN共享的PLMN数量尽可能多的目标候选主基站，例如选择支持RAN共享的所有PLMN的目标候选主基站，从而降低切换移动基站之后终端受到影响的可能性。
为了使得图3示出的RAN共享方法更加的清楚，以下对实现流程进行示例性描述。需要说明的是，在实际实现时，流程中的各个步骤的执行顺序可以为其他顺序，流程中的有些步骤也可以没有，本申请不作限制。
参照图4，图4是本申请实施例中另一种RAN共享方法的交互流程图。该流程包括：
S401：源主基站、目标候选主基站1和目标候选主基站2交互支持的RAN共享的PLMN信息。
图4中示出的目标候选主基站1和目标候选主基站2仅用于示例。在本申请实施例中，对于目标候选主基站的具体数量不作限制，
S402：源主基站向移动基站发送测量请求。相应的，移动基站接收测量请求。
S403：移动基站执行测量。
S404：移动基站向源主基站发送测量结果。相应的，源主基站接收测量结果。
S405：源主基站执行切换判决，选择目标主基站。
在图4示出的具体实施例中，选择的目标主基站为目标候选主基站1。
S406：源主基站向目标候选主基站1发送切换请求。相应的，目标候选主基站1接收切换请求。
S407：目标候选主基站1执行接纳控制。
S408：目标候选主基站1向源主基站发送切换请求确认消息。相应的，源主基站接收切换请求确认消息。
S409：源主基站向移动基站发送RRC重配置消息。相应的，移动基站接收RRC重配置消息。
S410：移动基站向终端发送测量请求。相应的，终端接收测量请求。
S411：终端执行测量。
S412：终端向移动基站发送测量结果。相应的，移动基站接收测量结果。
S413：移动基站执行切换判决，选择目标基站，目标基站至少支持终端工作的PLMN。
S414：移动基站向目标基站发送切换请求。相应的，目标基站接收切换请求。
可以理解的是，目标基站还可以执行接纳控制等后续操作，本申请实施例对此不做限制。
图4所示的各个步骤的具体描述、以及该方案的有益效果可参见 基于图3所示的实施例，此处不再赘述。
本申请实施例中还公开了一种RAN共享装置，该RAN共享装置可以为上述源主基站。
所述RAN共享装置可以包括：目标主基站选择模块，用于执行切换判决，选择目标主基站；其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
进一步地，所述RAN共享装置还可以包括：切换请求发送模块，用于向所述目标主基站发送切换请求；其中，所述切换请求包含指示位消息，所述指示位消息用于指示所述移动基站支持所述RAN共享。
进一步地，所述RAN共享装置还可以包括：切换请求确认消息接收模块，用于从所述目标主基站接收切换请求确认消息；其中，所述切换请求确认消息包括RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
进一步地，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到无线资源控制RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
进一步地，所述RAN共享装置还可以包括：RRC重配置消息发送模块，用于向所述移动基站发送所述RRC重配置消息；其中，所述RRC重配置消息中包含所述切换定时器。
进一步地，所述RAN共享装置还可以包括：交互模块，用于与一个或多个所述目标候选主基站交互支持的RAN共享的PLMN信息。
关于该RAN共享装置的原理、具体实现和有益效果请参照图1至图4示出的RAN共享方法的相关描述，此处不再赘述。
参照图5，图5是本申请实施例中一种RAN共享装置的结构示意图。该RAN共享装置可以为上述移动基站。
所述RAN共享装置可以包括：切换模块51，用于切换至目标主基站；目标基站选择模块52，用于为工作在所述目标主基站不支持的公共陆地移动通信网络PLMN的终端，选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
进一步地，所述RAN共享装置还可以包括：切换请求发送模块，用于向所述目标基站发送切换请求。
进一步地，所述RAN共享装置还可以包括：RRC重配置消息获取模块，用于从源主基站获取无线资源控制RRC重配置消息；其中，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到所述RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器的时长
进一步地，目标基站选择模块包括：测量请求发送子模块，用于向工作在所述目标主基站不支持的PLMN的所述终端发送测量请求；测量结果接收子模块，用于从所述终端接收测量结果；目标基站选择子模块，用于根据所述测量结果，在一个或多个支持所述PLMN的目标候选基站中选择一个作为所述目标基站。
关于该RAN共享装置的原理、具体实现和有益效果请参照图1至图4示出的RAN共享方法的相关描述，此处不再赘述。
本申请实施例中还公开了一种RAN共享装置，该RAN共享装置可以为上述目标主基站。
所述RAN共享装置可以包括：接收模块，用于从源主基站接收切换请求；其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
进一步地，所述RAN共享装置还可以包括：切换请求确认消息 发送模块，用于向所述源主基站发送切换请求确认消息；其中，所述切换请求确认消息包括无线资源控制RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
进一步地，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
进一步地，所述RAN共享装置还可以包括：交互模块，用于与源主基站以及一个或多个目标候选主基站交互支持的RAN共享的公共陆地移动通信网络PLMN信息。
关于该RAN共享装置的原理、具体实现和有益效果请参照图1至图4示出的RAN共享方法的相关描述，此处不再赘述。
在具体实施中，上述RAN共享装置可以对应于用户设备中具有数据处理功能的芯片；或者对应于用户设备中包括具有数据处理功能芯片的芯片模组，或者对应于用户设备。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被计算机运行时使得上述RAN共享方法被执行。所述可读存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光盘、机械硬盘、固态硬盘等。
本申请实施例还提供了一种RAN共享装置，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述RAN共享方法。
参照图6，图6是本申请实施例中另一种RAN共享装置的结构示意图。
装置600包括至少一个处理器601和至少一个存储器602，存储 器602用于存储计算机程序和/或数据。存储器602与处理器601耦合。处理器601用于运行存储器602中存储的计算机程序和/或数据，实现前文所述的RAN共享方法。本申请实施例中的耦合是装置、单元或模块之间的间隔耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。作为另一种实现，存储器602还可以位于装置600之外。处理器601可以和存储器602协同操作。处理器601可能执行存储器602中存储的计算机程序。所述至少一个存储器中的至少一个可以包括于处理器中。
在一些实施例中，装置600还可以包括通信接口603，通信接口603用于通过传输介质和其他设备通信，从而用于装置600中的模块可以和其他设备通信。示例性地，通信接口603可以是收发器、电路、总线、模块或其它类型的通信接口。
本申请实施例中不限定上述通信接口603、处理器601以及存储器602之间的连接介质。例如，本申请实施例在图6中以存储器602、和通信接口603均与处理器601连接。当然，本申请实施例中存储器602、通信接口603、处理器601之间还可以通过总线连接，所述总线可以分为地址总线、数据总线、控制总线等。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid–state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有 指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储计算机程序和/或数据。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机程序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介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，简称DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，简称DVD))、或者半导体介质(例如，SSD)等。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的 方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (19)

  1. 一种无线接入网RAN共享方法，其特征在于，所述方法包括：
    执行切换判决，选择目标主基站；
    其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
  2. 根据权利要求1所述的RAN共享方法，其特征在于，还包括：
    向所述目标主基站发送切换请求；
    其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
  3. 根据权利要求2所述的RAN共享方法，其特征在于，还包括：
    从所述目标主基站接收切换请求确认消息；
    其中，所述切换请求确认消息包括RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
  4. 根据权利要求3所述的RAN共享方法，其特征在于，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到无线资源控制RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；
    其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
  5. 根据权利要求4所述的RAN共享方法，其特征在于，还包括：
    向所述移动基站发送所述RRC重配置消息；
    其中，所述RRC重配置消息中包含所述切换定时器。
  6. 根据权利要求1所述的RAN共享方法，其特征在于，还包括：
    与一个或多个所述目标候选主基站交互支持的RAN共享的PLMN信息。
  7. 一种无线接入网RAN共享方法，其特征在于，用于移动基站，所述方法包括：
    切换至目标主基站；
    为工作在所述目标主基站不支持的公共陆地移动通信网络PLMN的终端选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
  8. 根据权利要求7所述的RAN共享方法，其特征在于，还包括：
    向所述目标基站发送切换请求。
  9. 根据权利要求7所述的RAN共享方法，其特征在于，还包括：
    从源主基站获取无线资源控制RRC重配置消息；
    其中，所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到所述RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；
    所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器的时长。
  10. 根据权利要求7所述的RAN共享方法，其特征在于，为工作在所述目标主基站不支持的PLMN的终端选择目标基站包括：
    向工作在所述目标主基站不支持的PLMN的所述终端发送测量请求；
    从所述终端接收测量结果；
    根据所述测量结果，在一个或多个支持所述PLMN的目标候选基站中选择一个作为所述目标基站。
  11. 一种无线接入网RAN共享方法，其特征在于，所述方法包括：
    从源主基站接收切换请求；
    其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
  12. 根据权利要求11所述的RAN共享方法，其特征在于，还包括：
    向所述源主基站发送切换请求确认消息；
    其中，所述切换请求确认消息包括无线资源控制RRC重配置消息，或者，所述切换请求确认消息封装所述RRC重配置消息。
  13. 根据权利要求12所述的RAN共享方法，其特征在于，
    所述RRC重配置消息中包含切换定时器，所述切换定时器在移动基站接到RRC重配置消息时启动，且在所述移动基站完成随机接入过程后停止；
    其中，所述切换定时器的时长大于不支持移动基站共享功能时采用的切换定时器时长。
  14. 根据权利要求11所述的RAN共享方法，其特征在于，还包括：
    与源主基站以及一个或多个目标候选主基站交互支持的RAN共享的公共陆地移动通信网络PLMN信息。
  15. 一种无线接入网RAN共享装置，其特征在于，包括：
    目标主基站选择模块，用于执行切换判决，选择目标主基站；
    其中，至少根据多个目标候选主基站支持的RAN共享的公共陆地移动通信网络PLMN信息，执行所述切换判决，在多个所述目标候选主基站中选择所述目标主基站。
  16. 一种无线接入网RAN共享装置，其特征在于，包括：
    切换模块，用于切换至目标主基站；
    目标基站选择模块，用于为工作在所述目标主基站不支持的公共陆地移动通信网络PLMN的终端，选择目标基站，所述目标基站至少支持所述终端工作的PLMN。
  17. 一种无线接入网RAN共享装置，其特征在于，包括：
    接收模块，用于从源主基站接收切换请求；
    其中，所述切换请求包含指示位消息，所述指示位消息用于指示移动基站支持所述RAN共享。
  18. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被计算机运行时使得权利要求1至6任一项所述无线接入网RAN共享方法被执行，或者使得权利要求7至10任一项所述RAN共享方法被执行，或者使得权利要求11至14任一项所述RAN共享方法被执行。
  19. 一种RAN共享装置，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至6任一项所述无线接入网RAN共享方法，或者执行权利要求7至10任一项所述RAN共享方法，或者执行权利要求11至14任一项所述RAN共享方法。
PCT/CN2022/116977 2021-09-29 2022-09-05 Ran共享方法及装置、计算机可读存储介质 WO2023051174A1 (zh)

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