WO2020232611A1 - 一种小区重选方法及装置、终端 - Google Patents

一种小区重选方法及装置、终端 Download PDF

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Publication number
WO2020232611A1
WO2020232611A1 PCT/CN2019/087660 CN2019087660W WO2020232611A1 WO 2020232611 A1 WO2020232611 A1 WO 2020232611A1 CN 2019087660 W CN2019087660 W CN 2019087660W WO 2020232611 A1 WO2020232611 A1 WO 2020232611A1
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WIPO (PCT)
Prior art keywords
cell
information
plmn
terminal
reselection
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PCT/CN2019/087660
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English (en)
French (fr)
Inventor
王淑坤
石聪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201980065141.2A priority Critical patent/CN112889316B/zh
Priority to PCT/CN2019/087660 priority patent/WO2020232611A1/zh
Publication of WO2020232611A1 publication Critical patent/WO2020232611A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of mobile communication technology, and specifically relate to a cell reselection method, device, and terminal.
  • NR-U New Radio-Unlicensed
  • any operator may deploy cells at this frequency, and NR-U also supports independent deployment scenarios of NR-U cells , which means that the NR-U cell can become a candidate cell for cell reselection.
  • the cells may be reselected to other public land mobile network (Public Land Mobile Network, PLMN) cells.
  • PLMN Public Land Mobile Network
  • the embodiments of the present application provide a cell reselection method, device, and terminal.
  • the terminal records the first information of the first cell and the second information of the second cell.
  • the first cell is the serving cell before cell reselection
  • the second cell is the target cell for reselection
  • the second cell is NR-U cell
  • the terminal receives the cell reselection assistance information sent by the network, and determines whether the target NR-U cell is a candidate NR-U cell for cell reselection according to the cell reselection assistance information.
  • the recording unit is used to record the first information of the first cell and the second information of the second cell.
  • the first cell is a serving cell before cell reselection, and the second cell is a target cell for reselection.
  • the second cell is an NR-U cell;
  • the communication unit is configured to send the first information of the first cell and the second information of the second cell to the network, where the first information and the second information are used for the network configuration cell reselection assistance information ; Receive cell reselection assistance information sent by the network;
  • the processing unit is configured to determine whether the target NR-U cell is a candidate NR-U cell for cell reselection according to the cell reselection assistance information.
  • the terminal provided in the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the above cell reselection method.
  • the chip provided in the embodiment of the present application is used to implement the above-mentioned cell reselection method.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned cell reselection method.
  • the computer-readable storage medium provided by the embodiment of the present application is used to store a computer program, and the computer program enables a computer to execute the above-mentioned cell reselection method.
  • the computer program product provided by the embodiment of the present application includes computer program instructions that cause a computer to execute the above-mentioned cell reselection method.
  • the computer program provided by the embodiment of the present application when running on a computer, causes the computer to execute the above-mentioned cell reselection method.
  • the network side assists the terminal to perform cell reselection, thereby avoiding reselecting to other PLMN cells and improving terminal mobility. Save terminal power.
  • Self-Organizing Network SON
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of this application.
  • Figure 2 is a schematic diagram of Beam sweeping provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of the SSB provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of the SSB burst set period provided by an embodiment of the application.
  • FIG. 5 is a schematic flowchart of a cell reselection method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of the structural composition of a cell reselection device provided by an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a chip of an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a communication system 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
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or called a communication terminal or a terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals located in the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
  • the communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110.
  • the "terminal” used here includes, but is not limited to, connection via wired lines, such as public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another terminal's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • a terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal can refer to access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user Device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, or terminals in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminals 120 may perform device-to-device (D2D) communication.
  • D2D device-to-device
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminals. This embodiment of the present application There is no restriction on this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal 120 with communication functions, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here;
  • the device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • 5G 5th Generation Partnership Project
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communication
  • mMTC Massive Machine Type Communication
  • eMBB is still targeting users to obtain multimedia content, services and data, and its demand is growing rapidly.
  • eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized, and must be analyzed in detail in conjunction with specific deployment scenarios.
  • Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
  • Typical features of mMTC include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
  • NR In the early deployment of NR, complete NR coverage is difficult to obtain, so the typical network coverage is wide area LTE coverage and NR island coverage mode. Moreover, a large amount of LTE is deployed below 6GHz, and there is very little spectrum below 6GHz that can be used for 5G. Therefore, NR must study the frequency spectrum application above 6GHz, and the high frequency band has limited coverage and fast signal fading. At the same time, in order to protect mobile operators' early investment in LTE, a tight interworking mode, namely MR-DC mode, between LTE and NR is proposed.
  • NR cells can also be deployed independently. Since each NR cell is beam operation, a cell has multiple beams.
  • 5G synchronization signals are given in the form of synchronization signal blocks (SS/PBCH block, SSB), including primary synchronization signals (Primary Synchronization Signal, PSS), The secondary synchronization signal (Secondary Synchronization Signal, SSS) and the physical broadcast channel (Physical Broadcast Channel, PBCH) are shown in Figure 3.
  • the 5G synchronization signal periodically appears in the time domain in the form of a synchronization signal burst set (SS burst), as shown in Figure 4.
  • the actual number of beams transmitted in each cell is determined by the network side configuration, but the frequency point where the cell is located determines the maximum number of beams that can be configured, as shown in Table 1 below.
  • Frequency Range L (the maximum number of beams) up to 3(2.4)GHz 4 3(2.4)GHz—6GHz 8 6GHz—52.6GHz 64
  • a cell reselection process After a terminal in an idle state camps in a cell, a cell reselection process will be performed to meet the mobility requirements of the idle state terminal.
  • the measurement behavior constraints and cell reselection related parameters of all terminals in the idle state come from system broadcast messages. The following assumes that all relevant parameters are configured. If there is no configuration, the related constraints will not exist.
  • the inter-frequency measurement with the same priority or low priority when the serving cell Srxlev>SnonIntraSearchP and the serving cell Squal>SnonIntraSearchQ, the inter-frequency measurement with the same priority or low priority is not started, otherwise it is started.
  • the cell reselection behavior is performed based on the measurement results of the serving cell and neighboring cells.
  • the R criterion (sorted according to RSRP) must be satisfied.
  • the signal quality of the new cell is better than the current cell and lasts for a specified length of time. Shorter than 1s.
  • the signal quality of the high-priority cells needs to be higher than a certain threshold and last for a specified length of time, and the terminal stays in the original cell for no less than 1s.
  • the 3GPP RAN working group agreed to the establishment of the NR unlicensed working method in December 2018.
  • the goal of the project is to make NR work in the unlicensed frequency band, including the following working scenarios:
  • Primary Cell Primary Cell
  • Secondary Cell Secondary Cell
  • PCell Primary Cell
  • SCell Secondary Cell
  • PCell is LTE licensed spectrum
  • primary and secondary cell Primary Secondary Cell, PScell
  • NR works as an independent cell in unlicensed spectrum.
  • NR-U's working frequency band is 5GHz unlicensed spectrum and 6GHz unlicensed spectrum; on unlicensed spectrum, NR-U design should ensure that it is compatible with other systems already working on these unlicensed spectrums. Fairness between the two, for example, WiFi, etc.
  • the principle of fairness is that the impact of NR-U on systems that have been deployed on unlicensed spectrum (for example, WiFi) cannot exceed the impact between these systems.
  • NR-U works on unlicensed spectrum
  • any operator may deploy cells at this frequency point, and NR-U also supports independent deployment scenarios of NR-U cells, which means that NR-U cells can become cell re- The selected candidate cell. Since different operators can deploy independently deployed NR-U type cells with the same frequency, the cell may be reselected to another PLMN cell. If the terminal finds that it is not its own cell, it will immediately trigger cell selection/reselection to other cells , Resulting in poor terminal mobility performance, power consumption and other issues. If paging occurs during the period or there is a service trigger, it may cause problems such as paging loss and large service delay. To this end, the following technical solutions of the embodiments of the present application are proposed.
  • FIG. 5 is a schematic flowchart of a cell reselection method provided by an embodiment of the application. As shown in FIG. 5, the cell reselection method includes the following steps:
  • Step 501 The terminal records the first information of the first cell and the second information of the second cell.
  • the first cell is the serving cell before cell reselection
  • the second cell is the target cell for reselection
  • the second cell is an NR-U cell.
  • the terminal recording the first information of the first cell and the second information of the second cell may be implemented in any of the following ways:
  • Method 1 Idle UE performs measurement. If the terminal reselects to the second cell, then obtain the broadcast information of the second cell; if the terminal is based on the broadcast information of the second cell It is determined that the second cell is a cell not belonging to the first PLMN group or the second cell is a cell belonging to the second PLMN group, then the terminal records the first information of the first cell and the second cell The second information; wherein the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are those that do not belong to the first PLMN and the first PLMN PLMN in the effective EPLMN list; the first PLMN is a PLMN selected or served by the terminal.
  • a terminal in an idle state performs measurement. If the terminal reselects to an NR-U cell, the system broadcast information of the NR-U cell is obtained.
  • the system broadcast information includes the PLMN information of the NR-U cell.
  • the PLMN information of the NR-U cell determines that the NR-U cell does not belong to its current selected or served PLMN, or the NR-U cell is a cell of another PLMN, then the terminal records the first information of the serving cell before cell reselection And the second information of the NR-U cell.
  • Method 2 The Idle UE performs measurement. If the terminal determines that the target cell for reselection is the second cell, and the second cell is an NR-U cell, it will record the The first information of the first cell; the terminal obtains the broadcast information of the second cell after reselecting to the second cell; if the terminal determines the second cell based on the broadcast information of the second cell Is a cell that does not belong to the first PLMN group or the second cell is a cell belonging to the second PLMN group, the terminal records the second information of the second cell; wherein, the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN; the first PLMN is the terminal selection Or serving PLMN.
  • a terminal in an idle state performs measurement. If the terminal determines that the target cell for reselection is an NR-U cell, it records the first information of the serving cell before cell reselection. When the terminal reselects to the NR-U cell, it obtains the system broadcast information of the NR-U cell.
  • the system broadcast information includes the PLMN information of the NR-U cell. If the terminal determines the NR-U cell based on the PLMN information of the NR-U cell The U cell does not belong to the PLMN currently selected or served by itself, or the NR-U cell is a cell of another PLMN, the terminal records the second information of the NR-U cell. Further, if the terminal determines that the NR-U cell belongs to its current selected or served PLMN according to the PLMN information of the NR-U cell, the terminal deletes the previously recorded first information of the serving cell before cell reselection.
  • the first information of the first cell includes at least one of the following:
  • RSRP Reference Signal Received Power
  • n3 is a positive integer
  • n4 The indexes of the n4 strongest beams of the first cell and the RSRQ measurement results of the beams, where n4 is a positive integer.
  • the first cell refers to the serving cell before cell reselection, that is, the serving cell where the terminal is located before cell reselection.
  • the cell identification information includes at least one of the following: PLMN information, cell id information, tracking area code (TAC), radio access network area code (RANC), physical cell Identity (Physical Cell Identity, PCI).
  • PLMN information includes at least one of the following: PLMN information, cell id information, tracking area code (TAC), radio access network area code (RANC), physical cell Identity (Physical Cell Identity, PCI).
  • TAC tracking area code
  • RNC radio access network area code
  • PCI Physical Cell Identity
  • the first information includes at least one of the following: cell identification information of the serving cell before cell reselection; RSRP and/or RSRQ measurement results of the serving cell before cell reselection; n strongest neighbors before cell reselection
  • the index of the strongest x beams of the serving cell before cell reselection and the RSRP and/or beams In the RSRQ measurement result, x is a positive integer, such as x 1 or 2, etc.
  • the second information of the second cell includes at least one of the following:
  • First indication information where the first indication information is used to indicate that the second cell is a cell that does not belong to a first PLMN group or that the second cell is a cell that belongs to a second PLMN group;
  • the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN ;
  • the first PLMN is a PLMN selected or served by the terminal.
  • the second cell refers to a target cell for cell reselection, and the target cell is an NR-U cell.
  • the cell identification information includes at least one of the following: PLMN information, cell id information, TAC, RANC, PCI.
  • the second information includes at least one of the following: cell identification information of the NR-U cell; the NR-U cell is indication information of other PLMNs, where other PLMNs refer to those other than the PLMN selected or served by the terminal PLMN.
  • Step 502 The terminal sends the first information of the first cell and the second information of the second cell to the network, where the first information and the second information are used for the network configuration cell reselection assistance information.
  • the terminal sending the first information of the first cell and the second information of the second cell to the network may be implemented using the following process:
  • the terminal After the terminal enters the connected state, it sends an RRC message to the network, the RRC message carries second indication information, and the second indication information is used to indicate that the terminal records the first information and the second information.
  • the RRC message is an RRC setup complete (RRCsetpComplete) message, or an RRC reestablishment complete (RRCsetpComplete) message, or an RRC recovery complete (RRC ResumeComplete) message.
  • the terminal receives a first request message sent by the network, where the first request message is used to request the first information and the second information recorded by the terminal.
  • the terminal sends a first response message to the network, and the first response message carries the first information and the second information recorded by the terminal.
  • the cell identification information of the first cell in the first information is used by the network to address the first cell, and the first information and the second information are forwarded to the first cell.
  • Cell; the first information and the second information are used to configure the cell reselection assistance information for the first cell.
  • the network side addresses the target cell according to the cell identification information of the serving cell before cell reselection recorded therein (that is, before cell reselection) Serving cell), and forward the record information to the target cell through the Xn interface.
  • the serving cell when the terminal enters the connected state is the serving cell before cell reselection, then the terminal directly reports its recorded information to the serving cell before cell reselection. If the serving cell when the terminal enters the connected state (assuming cell 1) is not the serving cell before cell reselection (assuming cell 2), then cell 1 needs to address cell 2 according to the cell identification information of cell 2 and The information recorded by the terminal is forwarded to cell 2.
  • the target cell can receive the aforementioned recorded information reported by a large number of terminals or forwarded by other base stations, and then configure the cell reselection assistance information in the system broadcast according to the recorded information.
  • the cell reselection assistance information includes at least one of the following:
  • n3 The indexes of the n3 strongest beams of the first cell and the RSRP value or range of the beams, where n3 is a positive integer;
  • n4 The indices of the n4 strongest beams in the first cell and the RSRQ value or range of the beams, where n4 is a positive integer
  • First indication information where the first indication information is used to indicate that the second cell is a cell that does not belong to a first PLMN group or that the second cell is a cell that belongs to a second PLMN group;
  • the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN ;
  • the first PLMN is a PLMN selected or served by the terminal.
  • the first cell refers to a serving cell, that is, a serving cell where a cell terminal is located.
  • the second cell refers to an NR-U cell.
  • Step 503 The terminal receives the cell reselection assistance information sent by the network, and determines whether the target NR-U cell is a candidate NR-U cell for cell reselection according to the cell reselection assistance information.
  • the idle state terminal obtains the cell reselection assistance information from the system broadcast information, performs measurement, and determines whether the target NR-U cell is a candidate NR-U for cell reselection according to the measurement result and the cell reselection assistance information Cell; wherein the measurement result includes at least one of the following: a measurement result of a neighboring cell, a measurement result of the current serving cell.
  • the terminal determines that the target cell to be reselected is the NR-U cell (ie, target NR-U cell) according to the measurement result, and determines whether the PLMN of the target NR-U cell is the same as the terminal according to the cell reselection assistance information.
  • the selected or served PLMNs are consistent, and if they are consistent, the target NR-U cell is used as a candidate NR-U cell for cell reselection. In the case of inconsistency, the target NR-U cell is abandoned, and the target cell for reselection is determined again.
  • FIG. 6 is a schematic diagram of the structural composition of a cell reselection device provided by an embodiment of the application. As shown in FIG. 6, the cell reselection device includes:
  • the recording unit 601 is configured to record first information of a first cell and second information of a second cell.
  • the first cell is the serving cell before cell reselection, and the second cell is the target cell for reselection.
  • the second cell is an NR-U cell;
  • the communication unit 602 is configured to send the first information of the first cell and the second information of the second cell to the network, where the first information and the second information are used for the network configuration cell reselection assistance Information; receiving auxiliary information for cell reselection sent by the network;
  • the processing unit 603 is configured to determine whether the target NR-U cell is a candidate NR-U cell for cell reselection according to the cell reselection assistance information.
  • the recording unit 602 is configured to obtain broadcast information of the second cell if the terminal reselects to the second cell; if the terminal is based on the second cell's The broadcast information determines that the second cell is a cell that does not belong to the first PLMN group or the second cell is a cell that belongs to the second PLMN group, then the terminal records the first information of the first cell and the first information Second information of the second cell; wherein the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are not belonging to the first PLMN and the first PLMN PLMN equivalent to the EPLMN list; the first PLMN is the PLMN selected or served by the terminal.
  • the recording unit 602 is configured to record before the cell reselection if the terminal determines that the target cell for reselection is the second cell, and the second cell is an NR-U cell The first information of the first cell; the terminal obtains the broadcast information of the second cell after reselecting to the second cell; if the terminal determines the first information based on the broadcast information of the second cell If the second cell is a cell that does not belong to the first PLMN group or the second cell is a cell that belongs to the second PLMN group, the terminal records the second information of the second cell; wherein, the first PLMN group includes The first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN; the first PLMN is the The PLMN selected or served by the terminal.
  • the first information of the first cell includes at least one of the following:
  • n3 is a positive integer
  • n4 The indexes of the n4 strongest beams of the first cell and the RSRQ measurement results of the beams, where n4 is a positive integer.
  • the second information of the second cell includes at least one of the following:
  • First indication information where the first indication information is used to indicate that the second cell is a cell that does not belong to a first PLMN group or that the second cell is a cell that belongs to a second PLMN group;
  • the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN ;
  • the first PLMN is a PLMN selected or served by the terminal.
  • the cell identification information includes at least one of the following: PLMN information, cell id information, TAC, RANC, and PCI.
  • the communication unit is configured to send an RRC message to the network, the RRC message carries second indication information, and the second indication information is used to indicate that the terminal records the first Information and the second information; receiving a first request message sent by the network, the first request message being used to request the first information and the second information recorded by the terminal; sending a first response message to the network , The first response message carries the first information and the second information recorded by the terminal.
  • the RRC message is an RRC establishment complete message, or an RRC re-establishment complete message, or an RRC recovery complete message.
  • the first information and the second information are used for the network configuration cell reselection assistance information, including:
  • the cell identification information of the first cell in the first information is used by the network to address the first cell, and forward the first information and the second information to the first cell;
  • the information and the second information are used to configure the cell reselection assistance information for the first cell.
  • the cell reselection assistance information includes at least one of the following:
  • n3 The indexes of the n3 strongest beams of the first cell and the RSRP value or range of the beams, where n3 is a positive integer;
  • n4 The indices of the n4 strongest beams in the first cell and the RSRQ value or range of the beams, where n4 is a positive integer
  • First indication information where the first indication information is used to indicate that the second cell is a cell that does not belong to a first PLMN group or that the second cell is a cell that belongs to a second PLMN group;
  • the first PLMN group includes the first PLMN and/or the equivalent EPLMN list of the first PLMN; the PLMNs in the second PLMN group are PLMNs that do not belong to the first PLMN and the equivalent EPLMN list of the first PLMN ;
  • the first PLMN is a PLMN selected or served by the terminal.
  • the processing unit is configured to determine whether the target NR-U cell is a candidate NR-U cell for cell reselection according to the measurement result and the cell reselection assistance information;
  • the measurement result includes at least one of the following: a measurement result of a neighboring cell, and a measurement result of the current serving cell.
  • FIG. 7 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application.
  • the communication device may be a terminal or a network device.
  • the communication device 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 700 may specifically be a network device in an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 700 may specifically be a mobile terminal/terminal according to an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application. For brevity, This will not be repeated here.
  • FIG. 8 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 800 shown in FIG. 8 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 800 may further include a memory 820.
  • the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.
  • the memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.
  • the chip 800 may further include an input interface 830.
  • the processor 810 can control the input interface 830 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 800 may further include an output interface 840.
  • the processor 810 can control the output interface 840 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal in each method of the embodiment of the present application.
  • it will not be omitted here. Repeat.
  • the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 9 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 9, the communication system 900 includes a terminal 910 and a network device 920.
  • the terminal 910 may be used to implement the corresponding functions implemented by the terminal in the foregoing method
  • the network device 920 may be used to implement the corresponding functions implemented by the network device in the foregoing method.
  • details are not described herein again.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium may be applied to the mobile terminal/terminal in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal/terminal in the various methods of the embodiments of the present application, for It's concise, so I won't repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding procedures implemented by the mobile terminal/terminal in the various methods of the embodiments of the present application, for the sake of brevity , I won’t repeat it here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal in the embodiments of the present application.
  • the computer program runs on the computer, the computer can execute the corresponding methods implemented by the mobile terminal/terminal in the various methods of the embodiments of the present application. For the sake of brevity, the process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请实施例提供一种小区重选方法及装置、终端，该方法包括：终端记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区；所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；所述终端接收网络发送的小区重选辅助信息，根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。

Description

一种小区重选方法及装置、终端 技术领域
本申请实施例涉及移动通信技术领域，具体涉及一种小区重选方法及装置、终端。
背景技术
目前，由于新无线免授权(New Radio-Unlicensed，NR-U)工作在非授权频谱上，所以任何运营商都可能部署该频点的小区，而且NR-U中还支持NR-U小区独立部署场景，意味着NR-U小区可以成为小区重选的候选小区。由于不同运营商可以部署相同频点的独立部署NR-U类型的小区，所以小区可能重选到其他公共陆地移动网络(Public Land Mobile Network，PLMN)的小区，如果终端发现不是自己的小区，会立刻触发执行小区选择/重选到其他小区，导致终端移动性性能差，费电等问题。如果期间发生寻呼或者有业务触发，则可能导致寻呼丢失，业务延迟大等问题。
发明内容
本申请实施例提供一种小区重选方法及装置、终端。
本申请实施例提供的小区重选方法，包括：
终端记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区；
所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；
所述终端接收网络发送的小区重选辅助信息，根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
本申请实施例提供的小区重选装置，包括：
记录单元，用于记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区；
通信单元，用于向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；接收网络发送的小区重选辅助信息；
处理单元，用于根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
本申请实施例提供的终端，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述的小区重选方法。
本申请实施例提供的芯片，用于实现上述的小区重选方法。
具体地，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，使得安装有该芯片的设备执行上述的小区重选方法。
本申请实施例提供的计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述的小区重选方法。
本申请实施例提供的计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述的小区重选方法。
本申请实施例提供的计算机程序，当其在计算机上运行时，使得计算机执行上述的小区重选方法。
本申请实施例的技术方案中，通过自组织网络(Self-Organizing Network，SON)功能，网络侧辅助终端执行小区重选，进而避免重选到 其他PLMN的小区事情发生，提高了终端移动性能，节省了终端的电力。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请实施例提供的一种通信系统架构的示意性图；
图2为本申请实施例提供的Beam sweeping的示意图；
图3为本申请实施例提供的SSB的示意图；
图4为本申请实施例提供的SSB burst set周期的示意图；
图5为本申请实施例提供的小区重选方法的流程示意图；
图6为本申请实施例提供的小区重选装置的结构组成示意图；
图7是本申请实施例提供的一种通信设备示意性结构图；
图8是本申请实施例的芯片的示意性结构图；
图9是本申请实施例提供的一种通信系统的示意性框图。
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。基于本申请中的实施例，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、LTE 频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统或5G系统等。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端120(或称为通信终端、终端)通信的设备。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进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端120。作为在此使用的“终端”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线 电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端或者未来演进的PLMN中的终端等。
可选地，终端120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图1示例性地示出了一个网络设备和两个终端，可选地，该通信系统100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，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端120，网络设备110和终端120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例 如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为便于理解本申请实施例的技术方案，以下对本申请实施例涉及到的相关技术进行说明。
随着人们对速率、延迟、高速移动性、能效的追求以及未来生活中业务的多样性、复杂性，为此第三代合作伙伴计划(3 rd Generation Partnership Project，3GPP)国际标准组织开始研发5G。5G的主要应用场景为：增强移动超宽带(Enhance Mobile Broadband，eMBB)、低时延高可靠通信(Ultra Reliable Low Latency Communication，URLLC)、大规模机器类通信(massive Machine Type Communication，mMTC)。
一方面，eMBB仍然以用户获得多媒体内容、服务和数据为目标，其需求增长十分迅速。另一方面，由于eMBB可能部署在不同的场景中，例如室内，市区，农村等，其能力和需求的差别也比较大，所以不能一概而论，必须结合具体的部署场景详细分析。URLLC的典型应用包括：工业自动化，电力自动化，远程医疗操作(手术)，交通安全保障等。mMTC的典型特点包括：高连接密度，小数据量，时延不敏感业务，模块的低成本和长使用寿命等。
在NR早期部署时，完整的NR覆盖很难获取，所以典型的网络覆盖是广域的LTE覆盖和NR的孤岛覆盖模式。而且大量的LTE部署在6GHz以下，可用于5G的6GHz以下频谱很少。所以NR必须研究6GHz以上的频 谱应用，而高频段覆盖有限、信号衰落快。同时为了保护移动运营商前期在LTE投资，提出了LTE和NR之间紧密配合(tight interworking)的工作模式,即MR-DC模式。
NR小区也可以是独立部署，由于各个NR小区都是beam操作，一个小区有多个beam。
NR将来会部署在高频上，为了提高覆盖，在5G中，通过引入波束扫描(beam sweeping)的机制来满足覆盖的需求(用空间换覆盖，用时间换空间)，如图2所示。在引入beam sweeping后，每个波束方向上都需要发送同步信号，5G的同步信号以同步信号块(SS/PBCH block，SSB)的形式给出，包含主同步信号(Primary Synchronisation Signal，PSS)、辅同步信号(Secondary Synchronisation Signal，SSS)、和物理广播信道(Physical Broadcast Channel，PBCH)，如图3所示。5G的同步信号以同步信号突发组(SS burst set)的形式在时域上周期性出现，如图4所示。
每个小区的实际传输的beam个数通过网络侧配置来确定，但是小区所在的频点决定了可以配置最多的beam个数，如下表1所示。
频率范围 L(最多的beam个数)
up to 3(2.4)GHz 4
3(2.4)GHz—6GHz 8
6GHz—52.6GHz 64
表1
空闲状态的终端驻留到一个小区后，会执行小区重选过程以满足空闲状态终端的移动性需求。
所有空闲状态下的终端的测量行为约束和小区重选的相关参数都来自系统广播消息。下面假设所有相关参数都被配置。如果没有配置，相关约束也就不存在。
对于同频测量的启动，当服务小区Srxlev>SIntraSearchP而且服务小区Squal>SIntraSearchQ时，不启动同频邻区测量，否则启动同频邻区测量。
对于同优先级或者低优先级的异频测量，当服务小区Srxlev>SnonIntraSearchP而且服务小区Squal>SnonIntraSearchQ时，则不启动同优先级或者低优先级的异频测量，否则启动。
对于高优先级的异频测量，总是启动对其的测量。
小区重选行为基于对服务小区和邻区的测量结果执行的。
对于同频的小区和同优先级的异频小区执行小区重选，则需要满足R准则(按照RSRP排序)，新小区信号质量好于当前小区且持续指定时间长度，终端驻留在原小区时间不短于1s。
对于高优先级小区执行重选，则需要高优先级小区的信号质量高于一定门限且持续指定时间长度，终端驻留在原小区时间不短于1s。
对于低优先级的小区执行重选，则需要没有高优先级，同优先级小区符合要求，原小区信号质量低于一定门限，低优先级小区信号质量高于一定门限且持续一定时间长度，终端驻留在原小区时间不短于1s。
3GPP RAN工作组在2018年12月份同意了NR非授权工作方式的立项，该项目的目标是使得NR工作在非授权频段，包括如下几种工作场景：
·载波聚合场景：主小区(Primary Cell，PCell)为授权频谱，辅小区(Secondary Cell，SCell)为非授权频谱，PCell和SCell通过载波聚合方式工作；
·双连接工作场景：PCell为LTE授权频谱，主辅小区(Primary Secondary Cell，PScell)为NR非授权频谱；
·独立工作场景：NR作为一个独立小区工作在非授权频谱。
一般来说，NR-U的工作频带(Band)为5GHz非授权频谱和6GHz非授权频谱；在非授权频谱上，NR-U的设计应该保证与其他已经工作在这些 非授权频谱上的系统之间的公平性，比如，WiFi等。公平性的原则是，NR-U对于已经部署在非授权频谱上的系统(比如，WiFi)的影响不能超过这些系统之间的影响。
目前，由于NR-U工作在非授权频谱上，所以任何运营商都可能部署该频点的小区，而且NR-U中还支持NR-U小区独立部署场景，意味着NR-U小区可以成为小区重选的候选小区。由于不同运营商可以部署相同频点的独立部署NR-U类型的小区，所以小区可能重选到其他PLMN的小区，如果终端发现不是自己的小区，会立刻触发执行小区选择/重选到其他小区，导致终端移动性性能差，费电等问题。如果期间发生寻呼或者有业务触发，则可能导致寻呼丢失，业务延迟大等问题。为此，提出了本申请实施例的以下技术方案。
图5为本申请实施例提供的小区重选方法的流程示意图，如图5所示，所述小区重选方法包括以下步骤：
步骤501：终端记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区。
本申请实施例中，所述终端记录第一小区的第一信息和第二小区的第二信息，可以通过以下任意一种方式来实现：
方式一：处于空闲态的终端(Idle UE)执行测量，若终端重选到所述第二小区，则获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第一小区的第一信息和所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表 的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
举个例子：空闲态的终端执行测量，如果终端重选到一个NR-U小区，获取该NR-U小区的系统广播信息，系统广播信息包括该NR-U小区的PLMN信息，如果终端根据该NR-U小区的PLMN信息确定该NR-U小区不属于自己当前的选择的或者服务的PLMN，或者该NR-U小区是其他PLMN的小区，则终端记录小区重选前服务小区的第一信息和NR-U小区的第二信息。
方式二：处于空闲态的终端(Idle UE)执行测量，若终端确定重选的目标小区为所述第二小区，所述第二小区为NR-U小区，则在小区重选之前记录所述第一小区的第一信息；所述终端重选到所述第二小区后，获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
举个例子：空闲态的终端执行测量，如果终端确定重选的目标小区为NR-U小区，则在小区重选之前，记录服务小区的第一信息。当终端重选到NR-U小区后，获取该NR-U小区的系统广播信息，系统广播信息包括该NR-U小区的PLMN信息，如果终端根据该NR-U小区的PLMN信息确定该NR-U小区不属于自己当前的选择的或者服务的PLMN，或者该NR-U小区是其他PLMN的小区，则终端记录该NR-U小区的第二信息。进一步，如果终端根据该NR-U小区的PLMN信息确定该NR-U小区属于自己当前的选择的或者服务的PLMN，则终端删除之前记录的 小区重选前的服务小区的第一信息。
本申请一些可选实施方式中，所述第一小区的第一信息包括以下至少之一：
所述第一小区的小区标识信息；
所述第一小区的参考信号接收功率(Reference Signal Received Power，RSRP)测量结果；
所述第一小区的参考信号接收质量(Reference Signal Received Quality，RSRQ)测量结果；
所述第一小区的n1个最强邻区的RSRP测量结果以及对应的邻区标识信息，n1为正整数；
所述第一小区的n2个最强邻区的RSRQ测量结果以及对应的邻区标识信息，n2为正整数；
所述第一小区的n3个最强波束的索引以及波束的RSRP测量结果，n3为正整数；
所述第一小区的n4个最强波束的索引以及波束的RSRQ测量结果，n4为正整数。
上述方案中，所述第一小区是指小区重选前的服务小区，即小区重选前终端所在的服务小区。
上述方案中，所述小区标识信息包括以下至少之一：PLMN信息、小区id信息、跟踪区域码(Tracking Area Code，TAC)、无线接入网区域码(Radio Access Network Code，RANC)、物理小区标识(Physical Cell Identity，PCI)。
举个例子：所述第一信息包括以下至少之一：小区重选前服务小区的小区标识信息；小区重选前服务小区的RSRP和/或RSRQ测量结果；小区重选前n个最强邻区的RSRP和/或RSRQ测量结果以及对应的邻区标识信 息，n是正整数，例如n＝1或者6等；小区重选前服务小区的最强x个波束的索引以及波束的RSRP和/或RSRQ测量结果，x是正整数，例如x＝1或者2等。
本申请一些可选实施方式中，所述第二小区的第二信息包括以下至少之一：
所述第二小区的小区标识信息；
第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
上述方案中，所述第二小区是指小区重选的目标小区，且该目标小区为NR-U小区。
上述方案中，所述小区标识信息包括以下至少之一：PLMN信息、小区id信息、TAC、RANC、PCI。
举个例子：所述第二信息包括以下至少之一：NR-U小区的小区标识信息；NR-U小区为其他PLMN的指示信息，这里其他PLMN是指所述终端选择或者服务的PLMN以外的PLMN。
步骤502：所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息。
本申请一些可选实施方式中，所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，可以采用如下流程来实现：
1)所述终端进入连接态后，向网络发送RRC消息，所述RRC消息 携带第二指示信息，所述第二指示信息用于指示所述终端记录有所述第一信息和所述第二信息。
这里，所述RRC消息为RRC建立完成(RRCsetpComplete)消息、或RRC重建立完成(RRCsetpComplete)消息、或RRC恢复完成(RRCResumeComplete)消息。
2)所述终端接收网络发送的第一请求消息，所述第一请求消息用于索要所述终端记录的所述第一信息和所述第二信息。
3)所述终端向网络发送第一响应消息，所述第一响应消息中携带所述终端记录的所述第一信息和所述第二信息。
本申请实施例中，所述第一信息中的第一小区的小区标识信息用于网络寻址所述第一小区，并将所述第一信息和所述第二信息转发给所述第一小区；所述第一信息和所述第二信息用于所述第一小区配置小区重选辅助信息。
举个例子：网络侧收到终端记录的所述第一信息和所述第二信息后，根据其中记录的小区重选前服务小区的小区标识信息，寻址到目标小区(即小区重选前的服务小区)，并将该记录信息通过Xn接口转发给目标小区。需要说明的是，若终端进入连接态时的服务小区为小区重选前的服务小区，那么终端是直接向小区重选前的服务小区上报自己记录的信息。若终端进入连接态时的服务小区(假设为小区1)不是小区重选前的服务小区(假设为小区2)，那么，小区1需要根据小区2的小区标识信息，寻址到小区2并将终端记录的信息转发给小区2。利用SON功能，目标小区可以接收到大量终端上报或者其他基站转发的上述记录信息，然后根据记录信息在系统广播里配置小区重选辅助信息。
本申请一些可选实施方式中，所述小区重选辅助信息包括以下至少之一：
所述第一小区的n1个最强邻区对应的RSRP值或者范围以及对应的邻区标识信息，n1为正整数；
所述第一小区的n2个最强邻区对应的RSRQ值或者范围以及对应的邻区标识信息，n2为正整数；
所述第一小区的n3个最强波束的索引以及波束的RSRP值或者范围，n3为正整数；
所述第一小区的n4个最强波束的索引以及波束的RSRQ值或者范围，n4为正整数；
所述第二小区的小区标识信息；
第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
上述方案中，所述第一小区是指服务小区，即小区终端所在的服务小区。
上述方案中，所述第二小区是指NR-U小区。
举个例子：所述小区重选辅助信息包括以下至少之一：n个邻区对应的RSRP和/或RSRQ值或者范围以及对应的邻区标识信息，n是正整数，例如n＝1或者6等；服务小区的最强x个波束的索引以及波束的RSRP和/或RSRQ值或者范围，x是正整数，例如x＝1或者2等；NR-U小区的小区标识信息(小区标识信息包括以下至少之一：PLMN信息、小区id信息、TAC、RANC、PCI)；NR-U小区为其他PLMN的指示信息，这里其他PLMN是指所述终端选择或者服务的PLMN以外的PLMN。
步骤503：所述终端接收网络发送的小区重选辅助信息，根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
这里，空闲态的终端从系统广播信息中获取小区重选辅助信息，执行测量，并根据测量结果和所述小区重选辅助信息，判断目标NR-U小区是否为小区重选的候选NR-U小区；其中，所述测量结果包括以下至少之一：邻区的测量结果、当前服务小区的测量结果。
举个例子：所述终端根据测量结果确定重选的目标小区为NR-U小区(即目标NR-U小区)，根据小区重选辅助信息判断该目标NR-U小区的PLMN是否与所述终端选择或者服务的PLMN一致，一致的情况下，将该目标NR-U小区作为小区重选的候选NR-U小区。不一致的情况下，放弃该目标NR-U小区，重新确定重选的目标小区。
图6为本申请实施例提供的小区重选装置的结构组成示意图，如图6所示，所述小区重选装置包括：
记录单元601，用于记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区；
通信单元602，用于向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；接收网络发送的小区重选辅助信息；
处理单元603，用于根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
本申请一些可选实施方式中，所述记录单元602，用于若终端重选到所述第二小区，则获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第一 小区的第一信息和所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
本申请一些可选实施方式中，所述记录单元602，用于若终端确定重选的目标小区为所述第二小区，所述第二小区为NR-U小区，则在小区重选之前记录所述第一小区的第一信息；所述终端重选到所述第二小区后，获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
本申请一些可选实施方式中，所述第一小区的第一信息包括以下至少之一：
所述第一小区的小区标识信息；
所述第一小区的RSRP测量结果；
所述第一小区的RSRQ测量结果；
所述第一小区的n1个最强邻区的RSRP测量结果以及对应的邻区标识信息，n1为正整数；
所述第一小区的n2个最强邻区的RSRQ测量结果以及对应的邻区标识信息，n2为正整数；
所述第一小区的n3个最强波束的索引以及波束的RSRP测量结果，n3为正整数；
所述第一小区的n4个最强波束的索引以及波束的RSRQ测量结果，n4为正整数。
本申请一些可选实施方式中，所述第二小区的第二信息包括以下至少之一：
所述第二小区的小区标识信息；
第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
本申请一些可选实施方式中，所述小区标识信息包括以下至少之一：PLMN信息、小区id信息、TAC、RANC、PCI。
本申请一些可选实施方式中，所述通信单元，用于向网络发送RRC消息，所述RRC消息携带第二指示信息，所述第二指示信息用于指示所述终端记录有所述第一信息和所述第二信息；接收网络发送的第一请求消息，所述第一请求消息用于索要所述终端记录的所述第一信息和所述第二信息；向网络发送第一响应消息，所述第一响应消息中携带所述终端记录的所述第一信息和所述第二信息。
本申请一些可选实施方式中，所述RRC消息为RRC建立完成消息、或RRC重建立完成消息、或RRC恢复完成消息。
本申请一些可选实施方式中，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息，包括：
所述第一信息中的第一小区的小区标识信息用于网络寻址所述第一小区，并将所述第一信息和所述第二信息转发给所述第一小区；所述第 一信息和所述第二信息用于所述第一小区配置小区重选辅助信息。
本申请一些可选实施方式中，所述小区重选辅助信息包括以下至少之一：
所述第一小区的n1个最强邻区对应的RSRP值或者范围以及对应的邻区标识信息，n1为正整数；
所述第一小区的n2个最强邻区对应的RSRQ值或者范围以及对应的邻区标识信息，n2为正整数；
所述第一小区的n3个最强波束的索引以及波束的RSRP值或者范围，n3为正整数；
所述第一小区的n4个最强波束的索引以及波束的RSRQ值或者范围，n4为正整数；
所述第二小区的小区标识信息；
第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
本申请一些可选实施方式中，所述处理单元，用于根据测量结果和所述小区重选辅助信息，判断目标NR-U小区是否为小区重选的候选NR-U小区；
其中，所述测量结果包括以下至少之一：邻区的测量结果、当前服务小区的测量结果。
本领域技术人员应当理解，本申请实施例的上述小区重选装置的相关描述可以参照本申请实施例的小区重选方法的相关描述进行理解。
图7是本申请实施例提供的一种通信设备700示意性结构图。该通信设备可以是终端，也可以是网络设备，图7所示的通信设备700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图7所示，通信设备700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，如图7所示，通信设备700还可以包括收发器730，处理器710可以控制该收发器730与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器730可以包括发射机和接收机。收发器730还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备700具体可为本申请实施例的网络设备，并且该通信设备700可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备700具体可为本申请实施例的移动终端/终端，并且该通信设备700可以实现本申请实施例的各个方法中由移动终端/终端实现的相应流程，为了简洁，在此不再赘述。
图8是本申请实施例的芯片的示意性结构图。图8所示的芯片800包括处理器810，处理器810可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图8所示，芯片800还可以包括存储器820。其中，处理器810可以从存储器820中调用并运行计算机程序，以实现本申请实施例中的 方法。
其中，存储器820可以是独立于处理器810的一个单独的器件，也可以集成在处理器810中。
可选地，该芯片800还可以包括输入接口830。其中，处理器810可以控制该输入接口830与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片800还可以包括输出接口840。其中，处理器810可以控制该输出接口840与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图9是本申请实施例提供的一种通信系统900的示意性框图。如图9所示，该通信系统900包括终端910和网络设备920。
其中，该终端910可以用于实现上述方法中由终端实现的相应的功能，以及该网络设备920可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通 用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和 任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地 方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (27)

  1. 一种小区重选方法，所述方法包括：
    终端记录第一小区的第一信息和第二小区的第二信息，所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为新无线免授权NR-U小区；
    所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；
    所述终端接收网络发送的小区重选辅助信息，根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
  2. 根据权利要求1所述的方法，其中，所述终端记录第一小区的第一信息和第二小区的第二信息，包括：
    若终端重选到所述第二小区，则获取所述第二小区的广播信息；
    若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一公共陆地移动网络PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第一小区的第一信息和所述第二小区的第二信息；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  3. 根据权利要求1所述的方法，其中，所述终端记录第一小区的第一信息和第二小区的第二信息，包括：
    若终端确定重选的目标小区为所述第二小区，所述第二小区为NR-U小区，则在小区重选之前记录所述第一小区的第一信息；
    所述终端重选到所述第二小区后，获取所述第二小区的广播信息；
    若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第二小区的第二信息；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  4. 根据权利要求1至3中任一项所述的方法，其中，所述第一小区的第一信息包括以下至少之一：
    所述第一小区的小区标识信息；
    所述第一小区的参考信号接收功率RSRP测量结果；
    所述第一小区的参考信号接收质量RSRQ测量结果；
    所述第一小区的n1个最强邻区的RSRP测量结果以及对应的邻区标识信息，n1为正整数；
    所述第一小区的n2个最强邻区的RSRQ测量结果以及对应的邻区标识信息，n2为正整数；
    所述第一小区的n3个最强波束的索引以及波束的RSRP测量结果，n3为正整数；
    所述第一小区的n4个最强波束的索引以及波束的RSRQ测量结果，n4为正整数。
  5. 根据权利要求1至4中任一项所述的方法，其中，所述第二小区的第二信息包括以下至少之一：
    所述第二小区的小区标识信息；
    第一指示信息，所述第一指示信息用于指示所述第二小区是不属于 第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  6. 根据权利要求4或5所述的方法，其中，所述小区标识信息包括以下至少之一：PLMN信息、小区id信息、跟踪区域码TAC、无线接入网区域码RANC、物理小区标识PCI。
  7. 根据权利要求1至6中任一项所述的方法，其中，所述终端向网络发送所述第一小区的第一信息和所述第二小区的第二信息，包括：
    所述终端进入连接态后，向网络发送RRC消息，所述RRC消息携带第二指示信息，所述第二指示信息用于指示所述终端记录有所述第一信息和所述第二信息；
    所述终端接收网络发送的第一请求消息，所述第一请求消息用于索要所述终端记录的所述第一信息和所述第二信息；
    所述终端向网络发送第一响应消息，所述第一响应消息中携带所述终端记录的所述第一信息和所述第二信息。
  8. 根据权利要求7所述的方法，其中，所述RRC消息为RRC建立完成消息、或RRC重建立完成消息、或RRC恢复完成消息。
  9. 根据权利要求7或8所述的方法，其中，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息，包括：
    所述第一信息中的第一小区的小区标识信息用于网络寻址所述第一小区，并将所述第一信息和所述第二信息转发给所述第一小区；所述第一信息和所述第二信息用于所述第一小区配置小区重选辅助信息。
  10. 根据权利要求1至9中任一项所述的方法，其中，所述小区重 选辅助信息包括以下至少之一：
    所述第一小区的n1个最强邻区对应的RSRP值或者范围以及对应的邻区标识信息，n1为正整数；
    所述第一小区的n2个最强邻区对应的RSRQ值或者范围以及对应的邻区标识信息，n2为正整数；
    所述第一小区的n3个最强波束的索引以及波束的RSRP值或者范围，n3为正整数；
    所述第一小区的n4个最强波束的索引以及波束的RSRQ值或者范围，n4为正整数；
    所述第二小区的小区标识信息；
    第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  11. 根据权利要求1至10中任一项所述的方法，其中，所述根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区，包括：
    所述终端根据测量结果和所述小区重选辅助信息，判断目标NR-U小区是否为小区重选的候选NR-U小区；
    其中，所述测量结果包括以下至少之一：邻区的测量结果、当前服务小区的测量结果。
  12. 一种小区重选装置，所述装置包括：
    记录单元，用于记录第一小区的第一信息和第二小区的第二信息， 所述第一小区为小区重选前的服务小区，所述第二小区为重选的目标小区，所述第二小区为NR-U小区；
    通信单元，用于向网络发送所述第一小区的第一信息和所述第二小区的第二信息，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息；接收网络发送的小区重选辅助信息；
    处理单元，用于根据所述小区重选辅助信息，判决目标NR-U小区是否为小区重选的候选NR-U小区。
  13. 根据权利要求12所述的装置，其中，所述记录单元，用于若终端重选到所述第二小区，则获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第一小区的第一信息和所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  14. 根据权利要求12所述的装置，其中，所述记录单元，用于若终端确定重选的目标小区为所述第二小区，所述第二小区为NR-U小区，则在小区重选之前记录所述第一小区的第一信息；所述终端重选到所述第二小区后，获取所述第二小区的广播信息；若所述终端基于所述第二小区的广播信息确定所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区，则所述终端记录所述第二小区的第二信息；其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  15. 根据权利要求12至14中任一项所述的装置，其中，所述第一小区的第一信息包括以下至少之一：
    所述第一小区的小区标识信息；
    所述第一小区的RSRP测量结果；
    所述第一小区的RSRQ测量结果；
    所述第一小区的n1个最强邻区的RSRP测量结果以及对应的邻区标识信息，n1为正整数；
    所述第一小区的n2个最强邻区的RSRQ测量结果以及对应的邻区标识信息，n2为正整数；
    所述第一小区的n3个最强波束的索引以及波束的RSRP测量结果，n3为正整数；
    所述第一小区的n4个最强波束的索引以及波束的RSRQ测量结果，n4为正整数。
  16. 根据权利要求12至15中任一项所述的装置，其中，所述第二小区的第二信息包括以下至少之一：
    所述第二小区的小区标识信息；
    第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  17. 根据权利要求15或16所述的装置，其中，所述小区标识信息包括以下至少之一：PLMN信息、小区id信息、TAC、RANC、PCI。
  18. 根据权利要求12至17中任一项所述的装置，其中，所述通信 单元，用于向网络发送RRC消息，所述RRC消息携带第二指示信息，所述第二指示信息用于指示所述终端记录有所述第一信息和所述第二信息；接收网络发送的第一请求消息，所述第一请求消息用于索要所述终端记录的所述第一信息和所述第二信息；向网络发送第一响应消息，所述第一响应消息中携带所述终端记录的所述第一信息和所述第二信息。
  19. 根据权利要求18所述的装置，其中，所述RRC消息为RRC建立完成消息、或RRC重建立完成消息、或RRC恢复完成消息。
  20. 根据权利要求18或19所述的装置，其中，所述第一信息和所述第二信息用于所述网络配置小区重选辅助信息，包括：
    所述第一信息中的第一小区的小区标识信息用于网络寻址所述第一小区，并将所述第一信息和所述第二信息转发给所述第一小区；所述第一信息和所述第二信息用于所述第一小区配置小区重选辅助信息。
  21. 根据权利要求12至20中任一项所述的装置，其中，所述小区重选辅助信息包括以下至少之一：
    所述第一小区的n1个最强邻区对应的RSRP值或者范围以及对应的邻区标识信息，n1为正整数；
    所述第一小区的n2个最强邻区对应的RSRQ值或者范围以及对应的邻区标识信息，n2为正整数；
    所述第一小区的n3个最强波束的索引以及波束的RSRP值或者范围，n3为正整数；
    所述第一小区的n4个最强波束的索引以及波束的RSRQ值或者范围，n4为正整数；
    所述第二小区的小区标识信息；
    第一指示信息，所述第一指示信息用于指示所述第二小区是不属于第一PLMN组的小区或者所述第二小区是属于第二PLMN组的小区；
    其中，所述第一PLMN组包括第一PLMN和/或第一PLMN的等效EPLMN列表；所述第二PLMN组中的PLMN为不属于第一PLMN以及第一PLMN的等效EPLMN列表的PLMN；所述第一PLMN为所述终端选择或服务的PLMN。
  22. 根据权利要求12至21中任一项所述的装置，其中，所述处理单元，用于根据测量结果和所述小区重选辅助信息，判断目标NR-U小区是否为小区重选的候选NR-U小区；
    其中，所述测量结果包括以下至少之一：邻区的测量结果、当前服务小区的测量结果。
  23. 一种终端，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至11中任一项所述的方法。
  24. 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权利要求1至11中任一项所述的方法。
  25. 一种计算机可读存储介质，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至11中任一项所述的方法。
  26. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至11中任一项所述的方法。
  27. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1至11中任一项所述的方法。
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