WO2021226953A1 - 小区搜索方法及装置 - Google Patents

小区搜索方法及装置 Download PDF

Info

Publication number
WO2021226953A1
WO2021226953A1 PCT/CN2020/090327 CN2020090327W WO2021226953A1 WO 2021226953 A1 WO2021226953 A1 WO 2021226953A1 CN 2020090327 W CN2020090327 W CN 2020090327W WO 2021226953 A1 WO2021226953 A1 WO 2021226953A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
network slice
information
frequency point
candidate
Prior art date
Application number
PCT/CN2020/090327
Other languages
English (en)
French (fr)
Inventor
付喆
刘建华
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.)
Filing date
Publication date
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 CN202080099605.4A priority Critical patent/CN115380571A/zh
Priority to PCT/CN2020/090327 priority patent/WO2021226953A1/zh
Publication of WO2021226953A1 publication Critical patent/WO2021226953A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • This application relates to the field of communication technology, and in particular to a cell search method and device.
  • 5G 5th Generation of Cellular Mobile Communication System
  • 5G also known as New Radio, New Radio
  • NR 5th Generation
  • eMBB enhanced Mobile Broad Band
  • mMTC massive Machine-type Communication
  • URLLC Low Latency Communication
  • the network slicing technology allows the network to be divided into multiple slices, and different types of services are transmitted in different network slices without interfering with each other.
  • the services in the above three application scenarios can be divided into three network slices.
  • the charging policies, security policies, and quality of service (QoS) policies of each network slice may be different.
  • QoS quality of service
  • the embodiments of the present application provide a cell search method and device, which can speed up cell search.
  • an embodiment of the present application provides a cell search method, which is applied to a terminal device, and the method includes:
  • first network slice information includes information about at least one network slice supported by the terminal device
  • an embodiment of the present application provides a cell search device, which is applied to terminal equipment, and the device includes:
  • An obtaining unit configured to obtain first network slice information, where the first network slice information includes information about at least one network slice supported by the terminal device;
  • the searching unit is configured to perform cell search based on the first network slice information.
  • an embodiment of the present application provides a terminal device, the terminal device includes a processor, a memory, a transceiver, and one or more programs, the one or more programs are stored in the memory, and It is configured to be executed by the processor, and the program includes instructions for executing part or all of the steps described in the method described in the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium that stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the above-mentioned first aspect Some or all of the steps described in the method.
  • the embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute as implemented in this application. Examples include part or all of the steps described in the method described in the first aspect.
  • the computer program product may be a software installation package.
  • the terminal device obtains first network slice information, and the first network slice information includes information about at least one network slice supported by the terminal device, and the terminal device is based on the first network slice.
  • Information for cell search provides a technical solution to realize cell search after the introduction of network slicing technology, and terminal equipment performs cell search based on network slicing information, so that terminal equipment can directly search for the network slicing cell supported by the terminal device, speeding up The process of cell search.
  • FIG. 1 is a schematic diagram of a network slicing provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a cell search method provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a cell search device provided by an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • a terminal device is a device with wireless communication capabilities, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air ( For example, airplanes, balloons, satellites, etc.).
  • the terminal device can be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device, and an industrial control (industrial) terminal device.
  • VR Virtual Reality
  • AR Augmented Reality
  • industrial control industrial control
  • Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in smart home (smart home) Terminal and so on.
  • the terminal device can also be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, a terminal device in the future 5G network, or a future evolution of the public land mobile communication network (Public Land Mobile Network, PLMN for short) terminal equipment, etc.
  • Public Land Mobile Network Public Land Mobile Network
  • terminal equipment can be called different names, such as: user equipment, access terminal, user unit, user station, mobile station, mobile station (Mobile Station, MS), remote station, remote terminal, mobile device, user Terminals, terminals, wireless communication equipment, user agents or user devices, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal) Digital Assistant, PDA), 5G network or terminal equipment in the future evolution network, etc., which are not limited in the embodiment of the present application.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal digital processing
  • 5G network or terminal equipment in the future evolution network etc.
  • Network Slicing In the new generation of communication systems, in order to meet the individual needs of different services, network slicing is introduced. By slicing network resources, a single physical network can be divided into multiple logical virtual networks, and independent network slices are allocated for typical business scenarios, and an enhanced network architecture is designed for business needs within the slices to achieve effective resource allocation and process optimization , Multiple network slices share network infrastructure, improve network resource utilization, and improve optimal support for different services used by different user groups. Network slicing is mainly aimed at the partition of the core network. RAN needs specific functions to support multiple slicing or resource segmentation for different network slicing. As shown in Figure 1, network slicing usually supports one or more communication service requirements. The collection of logical network functions.
  • Terminal equipment reports slicing requirements.
  • Network equipment selects the appropriate access and mobility management function (AMF) according to the slicing requirements reported by the terminal equipment to establish the relationship between the terminal equipment and the network equipment.
  • AMF access and mobility management function
  • the inter-service session for example, based on the subscription or type of the terminal device, can guide the terminal device to the selected slice in a manner that meets the needs of the operator or user.
  • Radio Resource Control (RRC) state In the 5G network environment, in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services, a new RRC state is defined, namely RRC_INACTIVE (RRC inactive) state. This state is different from RRC_IDLE (RRC idle) state and RRC_ACTIVE (RRC connected) state.
  • RRC_IDLE Mobility is UE-based cell selection and reselection, paging is initiated by CN, and the paging area is configured by CN. There is no UE AS context on the base station side. There is no RRC connection.
  • RRC_ACTIVE There is an RRC connection, and a UE AS context exists between the base station and the UE.
  • the network terminal knows that the location of the UE is of a specific cell level. Mobility is the mobility controlled by the network terminal. Unicast data can be transmitted between the UE and the base station.
  • Mobility is UE-based cell selection and reselection, there is a connection between CN-NR, UE AS context exists on a certain base station, paging is triggered by RAN, and RAN-based paging areas are managed by RAN.
  • the network terminal knows that the location of the UE is based on the paging area level of the RAN.
  • Cell search When the terminal device enters the system coverage area, the terminal device performs a cell search process, so that the terminal device and the cell achieve time slot and frequency synchronization.
  • the terminal devices in the RRC_IDLE state, RRC_ACTIVE state, and RRC_INACTIVE state will perform cell search when the system moves to achieve mobility.
  • the terminal equipment searches based on a synchronization signal block (Synchronization Signal Block, SSB).
  • SSB Synchronization Signal Block
  • the terminal device sequentially scans each frequency band supported.
  • SSB is located in a set of possible positions in each frequency band.
  • the terminal device uses the synchronization grid to search for the SSB. After searching for the SSB, the terminal device can learn system information such as a cell identifier and a master information block (Master Information Block, MIB).
  • MIB Master Information Block
  • PLMN Public Land Mobile Network
  • MCC Mobile Country Code
  • MNC Mobile Network Code
  • the 3rd Generation Partnership Project stipulates that the mobile terminal automatically selects the network according to the registered public land mobile network (Registered PLMN, RPLMN), the local public land mobile network (Home PLMN) , HPLMN), User Controlled Public Land Mobile Network (UPLMN), Operator Controlled Public Land Mobile Network (Operator Controlled PLMN, OPLMN) and other PLMN (Other PLMN).
  • the terminal selects an appropriate PLMN and performs Network registration.
  • FIG. 2 shows a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • the communication system includes multiple network devices 110 and terminal devices 120.
  • the multiple network devices 110 may be deployed in a radio access network (RAN) 10.
  • the number of terminal devices 120 is usually multiple, and each network
  • One or more terminal devices 120 may be distributed in the cell managed by the device 110.
  • the terminal device 120 when the terminal device 120 enters the coverage area of the system, the terminal device 120 performs a cell search process, and the terminal device 120 is in one or more networks. Search for a cell that meets the requirements within the coverage area of the device 110.
  • the network device 110 and the terminal device 120 may communicate with each other through air interface technology, for example, may communicate with each other through cellular technology.
  • the solution described in the embodiments of this application can be applied to a 5G mobile communication technology system, an evolved Long Term Evolution (eLTE) system, and a communication system that integrates multiple communication technologies (for example, a communication system that integrates LTE technology and NR technology). ), or the subsequent evolution of the communication system.
  • eLTE evolved Long Term Evolution
  • the terminal device 120 is in the coverage of the network device 110.
  • the connection between the above-mentioned devices may be a wireless connection.
  • a solid line is used in FIG. 2 to indicate.
  • the communication link between the network device 110 and the terminal device 120 may include: Down Link (DL) transmission from the network device 110 to the terminal device 120, and/or, uplink from the terminal device 120 to the network device 110 Link (Up Link, UP) transmission.
  • Downlink transmission may also be referred to as forward link transmission
  • uplink transmission may also be referred to as reverse link transmission.
  • the network device 110 in the RAN involved in the embodiments of the present application may be a base station (Base Station, BS), and the base station is a device deployed in the RAN to provide wireless communication functions for terminals.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • LTE systems they are called evolved NodeB (evolved NodeB, eNB, or eNodeB).
  • eNB evolved NodeB
  • eNodeB evolved NodeB
  • Node B In the system, it is called Node B.
  • the NR system it is called the next generation node (gnodeB, gNB) and the evolving Node B (ng-eNB).
  • the NR technology is used between the gNB and the terminal equipment.
  • the ng-eNB and terminal equipment use the evolved UMTS Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, E-UTRA) technology for communication.
  • E-UTRA evolved Universal Terrestrial Radio Access
  • Both gNB and ng-eNB can be connected to the 5G core network.
  • the network equipment in the example also includes equipment that provides base station functions in future new communication systems. With the evolution of communication technology, the name "base station" may change.
  • the above-mentioned devices that provide wireless communication functions for the terminal device 120 are collectively referred to as network devices.
  • network device 110 and the terminal device 120 shown in FIG. 2 are only for example, and do not constitute a limitation to the embodiment of the present application.
  • RAN needs to enhance how to support vertical services in the access network.
  • one method provides services with lower latency, more target, greater flexibility, and higher scalability for multiple services with different requirements based on network slicing.
  • RAN slicing allows application providers to participate in the design, deployment, and operation of customized RANs to better support the business of application providers.
  • Release 17 introduces the access network to enhance the slicing, but Release 17 does not involve the technical solution of realizing cell search after the introduction of network slicing technology, and the cell search in the prior art does not consider network slicing information, and the terminal device reports The PLMN information also does not consider the network slice information, which may cause the cell search process to be prolonged and affect user experience.
  • this application proposes a cell search method and device.
  • a terminal device obtains first network slice information.
  • the first network slice information includes information about at least one network slice supported by the terminal device.
  • the terminal device is based on the first network slice.
  • Information for cell search provides a technical solution to realize cell search after the introduction of network slicing technology, and terminal equipment performs cell search based on network slicing information, so that terminal equipment can directly search for the network slicing cell supported by the terminal device, speeding up The process of cell search.
  • FIG. 3 is a schematic flowchart of a cell search method provided by an embodiment of the application. The method can be applied to the communication system shown in FIG. 2. As shown in FIG. 3, the method includes the following steps:
  • the terminal device when a terminal device needs to access the core network for service transmission, the terminal device can obtain information about at least one network slice that meets the service requirements of the terminal device, that is, information about at least one network slice supported by the terminal device. information.
  • the terminal device locally stores pre-configured first network slice information before registering to the network, and the terminal device can obtain the first network slice information from the SIM card.
  • the terminal device may also receive the first network slice information from the network device, and the first network slice information may be carried in RRC signaling, MAC control element (MAC Control Element, MAC CE) signaling, or Broadcast message.
  • the first network slice information received by the terminal device from the network device may be obtained by this frequency sweep, or may be obtained by the previous terminal device, which is not limited in the embodiment of the present application.
  • RRC signaling may include, but is not limited to, any one of RRC Release message, RRC connection reconfiguration message, RRC connection reestablishment message, RRC connection setup message, RRC connection resume message, or other RRC messages.
  • the first network slice information includes at least one of the following: a network slice identifier, a frequency band, a network slice priority, a cell identifier, and a frequency point identifier.
  • the network slice identifier may include one or more, that is, the first network slice information may include a list of network slice identifiers, and the network slice identifier may be represented by Network Slice Selection Assistance Information (NSSAI) .
  • NSSAI is composed of one or more single network slice selection assistance information (Single Network Slice Selection Assistance Information, S-NSSAI).
  • S-NSSAI Single Network Slice Selection Assistance Information
  • Each S-NSSAI is used to identify a network slice type, which can also be understood as: Identifies the network slice, or it can be understood that S-NSSAI is the identification information of the network slice.
  • the supported network slices include network slice 1 and network slice 2, and the network slice identifier used to identify network slice 1 in the first network slice information is S-NSSAI 1, the network slice identifier used to identify network slice 2 is S-NSSAI 2.
  • the terminal equipment can support 8 S-NSSAIs.
  • the S-NSSAI is composed of a service type (Slice/ServiceType, SST) and a slice group (Slice Differentiator, SD) serving different terminal devices under the same SST.
  • the network slice identifier may be a network slice identity (Network Slice Identity, NSID), and the NSID is used to identify a network slice type.
  • the first network slice information includes information about at least one network slice, and the information about each network slice in the first network slice information may include network slice identifiers, frequency bands, network slice priorities, cell identifiers, and frequency point identifiers. Therefore, the frequency band, the frequency point identifier, the cell identifier, and the network slice priority may all include one or more.
  • the first network slice information may be stored in the form of a list, as shown in Table 1, or may be stored separately, which is not limited in the embodiment of the present application.
  • Network slice identification Frequency band Frequency point identification Cell ID Network slicing priority S-NSSAI 1 2570MHz-2620MHz 1 A 2 S-NSSAI 2 1880MHz-1920MHz 2 B 3 ... ... ... ... ... ... ...
  • a frequency band in a network slice may include one or more frequency points, and a frequency point may include one or more cells.
  • the number and data of frequency bands, frequency point identifiers, and frequency point identifiers in Table 1 above It is only used as an example, and does not constitute a limitation to the embodiments of the present application.
  • S320 Perform cell search based on the first network slice information.
  • the non-access stratum (NAS) of the terminal device instructs the access layer (Access Stratum, AS) to perform cell search
  • the AS of the terminal device receives After the cell search instruction of the NAS, a cell search is performed based on the first network slice information.
  • the performing cell search based on the first network slice information includes: determining target information for cell search based on the first network slice information, where the target information includes a first frequency band, a first frequency point, At least one of the first cells; performing cell search based on the target information to obtain target public land mobile network PLMN information.
  • the AS of the terminal device may screen the target information to be searched for cell search based on the first network slice information, and notify the NAS of the result of the cell search.
  • the terminal device may also perform a full-frequency search according to its own capabilities and settings, and then determine whether at least one of the searched frequency band, frequency point, and cell is a network supported by the terminal device based on the first network slice information The frequency band, frequency point or cell corresponding to the slice, if so, the terminal device notifies the NAS of the frequency band, frequency point or PLMN information in the cell obtained by the frequency sweep; otherwise, the terminal device continues cell search.
  • the embodiment of the application provides a method for cell search based on network slice information.
  • the cell search is performed based on at least one of the frequency band, frequency point, and cell of the network slice, so that the cell searched by the AS can satisfy the network of the terminal device. Slicing is required, thus speeding up the cell search process.
  • the first network slice information is information about a network slice supported by the terminal device; the first frequency band is the frequency band in the first network slice information; the first A frequency point is a frequency point corresponding to the frequency point identifier in the first network slice information; the first cell is a cell corresponding to the cell identifier in the first network slice information.
  • the terminal device may use at least one of the frequency band corresponding to the network slice, the frequency point corresponding to the frequency point identifier, and the cell corresponding to the cell identifier. Item to search.
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is one of the following: any of the frequency bands in the first network slice information, all the frequency bands in the first network slice information, and the first network slice information in the first network slice information.
  • the frequency band corresponding to a network slice priority, where the first network slice priority is determined based on a high priority priority selection principle;
  • the first frequency point is one of the following: frequency points corresponding to any one of the frequency point identifiers in the first network slice information, and frequency points corresponding to all the frequency point identifiers in the first network slice information , The frequency point corresponding to the frequency point identifier corresponding to the second network slice priority in the first network slice information, and the second network slice priority is determined based on the principle of high priority priority selection;
  • the first cell is one of the following: the cell corresponding to any one of the cell identifiers in the first network slice information, the cells corresponding to all the cell identifiers in the first network slice information, the first A cell corresponding to the cell identifier corresponding to the third network slice priority in the network slice information, and the third network slice priority is determined based on a high priority priority selection principle.
  • the terminal device can randomly select the frequency band in the first network slice information, the frequency point corresponding to the frequency point identifier, and the frequency point corresponding to the cell identifier. Search for at least one item, or the terminal device searches for at least one of all frequency bands included in the first network slice, frequency points corresponding to all frequency point identifiers, and cells corresponding to all cell identifiers. Further, if the first network slice information includes the network slice priorities of multiple network slices, the terminal device may preferentially select the frequency band and frequency corresponding to the network slice with the highest network slice priority in the order of the network slice priority.
  • the terminal device searches for the frequency band corresponding to the network slice with the sub-network slice priority, and the frequency point identifier corresponds to At least one of the frequency point of the cell and the cell corresponding to the cell identifier, and so on, until a suitable cell is searched.
  • a method for performing cell search when a terminal device supports multiple network slices is provided, and the network slice service of the network slice priority is guaranteed, thereby accelerating the cell search process.
  • the first frequency band is a frequency band determined from at least one candidate frequency band; the first frequency point is a frequency point determined from at least one candidate frequency point; and the first cell is A cell determined from at least one candidate cell; the at least one candidate cell, the at least one candidate frequency band, and the at least one candidate frequency point are all information searched by the terminal device.
  • the terminal device when the terminal device does not store cell information, the terminal device can perform a full frequency search according to its own capabilities and settings to obtain at least one candidate frequency band, at least one candidate frequency point, and at least one candidate cell.
  • the terminal device determines the first frequency band from at least one candidate frequency band based on the frequency band in the first network slice information, determines the first frequency point from at least one candidate frequency point, and determines from at least one candidate cell The first cell.
  • the embodiment of the application provides a method for cell search based on network slice information. At least one of the frequency band, frequency point, and cell to be searched is determined through the network slice information, so that the cell searched by the AS can satisfy the network slice of the terminal device. Need to speed up the cell search process.
  • the first network slice information is information about one network slice supported by the terminal device
  • the first frequency band is the first candidate frequency band, the first candidate frequency band matches the frequency band in the first network slice information, and the at least one candidate frequency band includes the first candidate frequency band;
  • the first frequency point is the first candidate frequency point, the first candidate frequency point matches the frequency point corresponding to the frequency point identifier in the first network slice information, and the at least one candidate frequency point Including the first candidate frequency point;
  • the first cell is the first candidate cell, the first candidate cell matches the cell corresponding to the cell identifier in the first network slice information, and the at least one candidate cell includes the first candidate Community.
  • the terminal device matches at least one candidate frequency band with the frequency band in the first network slice information, and when the first candidate frequency band matches the frequency band in the first network slice information, determines the first candidate frequency band as the first Frequency band.
  • the terminal device matches at least one candidate frequency point with the frequency point corresponding to the frequency point identifier in the first network slice information, respectively, when the first candidate frequency point matches the frequency point corresponding to the frequency point identifier in the first network slice information , The first candidate frequency point is determined as the first frequency point.
  • the terminal device matches at least one candidate cell with the cell corresponding to the cell identifier in the first network slice information, and when the first candidate cell matches the cell corresponding to the cell identifier in the first network slice information, the first candidate cell is matched with the cell corresponding to the cell identifier in the first network slice information.
  • the cell is determined as the first cell.
  • the terminal device AS may notify the NAS that the corresponding PLMN, or the AS may report the PLMN of the cell with the strongest signal quality under Radio Access Technology (RAT), and/or indicate to the NAS that the PLMN is a non-network slice corresponding PLMN.
  • RAT Radio Access Technology
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is the second candidate frequency band
  • the second candidate frequency band matches any one of the frequency bands in the first network slice information
  • the second candidate frequency band is the same as the first
  • the frequency band corresponding to the fourth slice priority in the network slice information matches, the fourth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency band includes the second candidate frequency band ;
  • the first frequency point is the second candidate frequency point
  • the second candidate frequency point matches a frequency point corresponding to any one of the frequency point identifiers in the first network slice information, or the first frequency point is The second candidate frequency band matches the frequency point corresponding to the frequency point identifier corresponding to the fifth slice priority, the fifth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency point includes The second candidate frequency point;
  • the first cell is the second candidate cell
  • the second candidate cell matches a cell corresponding to any one of the cell identifiers in the first network slice information, or the second candidate frequency band matches the first candidate frequency band.
  • the cells corresponding to the cell identifiers corresponding to the six slice priorities match, the sixth network slice priority is determined based on a high priority priority selection principle, and the at least one candidate cell includes the second candidate cell.
  • the terminal device matches at least one candidate frequency band with all frequency bands in the first network slice information respectively, and the first candidate frequency band matches the first network slice information.
  • the first candidate frequency band is determined as the first frequency band; or, when the network slice priority of multiple network slices is included in the first network slice information, it is determined according to the network slice priority Sequence, the terminal device matches at least one candidate frequency band with the frequency band corresponding to the highest network slicing priority.
  • the terminal device will match at least one candidate frequency band with the frequency band corresponding to the second highest network slice priority, and so on, until the first frequency point is determined.
  • the above-mentioned fourth network slicing priority is based on the order of network slicing priority, the highest network slicing priority is preferentially selected. If the first candidate frequency band does not match the frequency band corresponding to the highest network slicing priority, the fourth network slicing priority The level is the second highest network slicing priority, and so on.
  • the method for determining the first frequency point and the first cell is similar to the method for the first frequency band, and will not be described in detail here.
  • the embodiment of the present application provides a method for performing cell search when the terminal device supports multiple network slices, and guarantees the service of the network slice with the priority of the network slice, thereby accelerating the cell search process.
  • the terminal device AS may notify the NAS that the corresponding frequency band is not searched.
  • the AS may report the PLMN of the cell with the strongest signal quality under Radio Access Technology (RAT), and/or indicate to the NAS that the PLMN is a non-network slice corresponding PLMN.
  • RAT Radio Access Technology
  • the first frequency band may include one or more frequency bands
  • the first frequency point may include one or more frequency points
  • the first cell may include one or more cells.
  • the first frequency band may include one frequency band
  • the first network slice information includes multiple network slice information supported by the terminal device
  • the first frequency band may include multiple frequency bands.
  • the performing cell search based on the target information to obtain target PLMN information includes:
  • the target cell is at least one of the following: a cell with the largest signal strength value among the frequency points of the first frequency band, and the frequency point of the first frequency band includes the network slice identifier A cell with the largest number, and a cell with the largest number of beams in the frequency point of the first frequency band whose beam quality is greater than or equal to a preset threshold;
  • the terminal device AS can search for the cell with the highest signal strength value among all the frequency points in the first frequency band. For example, suppose the first frequency band includes frequency point 1, frequency point 2, and frequency point 3. 1 includes cell 1, frequency 2 includes cell 2 and cell 3, and frequency 3 includes cell 4 and cell 5. The terminal device searches for the cell with the highest signal strength among all frequency points, and obtains cell 4, then the target cell is cell 4. The terminal device can also search for the cell with the largest signal strength value in each frequency point of the first frequency band. For example, suppose the first frequency band includes frequency point 1, frequency point 2, and frequency point 3, and frequency point 1 includes cell 1, frequency point 2. Including cell 2 and cell 3. Frequency point 3 includes cell 4 and cell 5.
  • the terminal device searches for the cell with the highest signal strength in each frequency point to obtain cell 1, cell 2 and cell 4, then the target cell includes cell 1, cell 2. And cell 4.
  • the terminal device can search for all frequency points in the first frequency band or the signal strength value of each frequency point is greater than or equal to the signal strength threshold, and includes the cell with the largest number of network slice identifiers. It can also be understood as the terminal The device searches for the cell with the greatest degree of matching between the signal strength value and the network slice of the terminal device within a certain range (for example, the number of matching user slices is the largest, or the number of matching network slices is the largest).
  • the terminal device may search for all frequency points in the first frequency band or a cell with the largest number of beams in each frequency point whose beam quality is greater than or equal to a preset threshold. After searching for the target cell, the terminal device reports the PLMN information of the target cell to the NAS.
  • the first search result may include multiple cells.
  • the terminal device can search multiple cells with the largest signal strength value, including the cell with the largest number of network slice identifiers, to obtain the second search.
  • the terminal device can search the multiple cells for the cell with the largest number of beams whose beam quality is greater than or equal to the preset threshold. For example, suppose that the first frequency band includes frequency 1, frequency 2, and frequency 3, frequency 1 includes cell 1, frequency 2 includes cell 2 and cell 3, and frequency 3 includes cell 4 and cell 5. The cell with the highest signal strength in each frequency point obtains cell 1, cell 2, and cell 4.
  • the terminal device searches for the cell with the largest number of network slice identifiers from cell 1, cell 2 and cell 4 to obtain cell 2 and cell 4. Then the terminal device searches for the cell with the largest number of beams with beam quality greater than or equal to the preset threshold from cell 2 and cell 4 to obtain cell 2, and finally uses cell 2 as the target cell.
  • the target cell is at least one of the following: a cell with the largest signal strength value in the first frequency point, and the first frequency point Includes the cell with the largest number of network slice identifiers and the cell with the largest number of beams in the first frequency point whose beam quality is greater than or equal to a preset threshold.
  • the terminal device can search for the cell with the largest signal strength value in the first frequency point of the first frequency band, or the signal strength value of the first frequency point of the first frequency band is greater than or equal to the signal strength Threshold, and includes the cell with the largest number of network slice identifiers, or the cell with the largest number of beams in the first frequency point of the first frequency band with beam quality greater than or equal to the preset threshold, or the signal strength value in the first frequency point of the first frequency band It is greater than or equal to the signal strength threshold, and includes the cell with the largest number of network slice identifiers and the largest number of beams with beam quality greater than or equal to the preset threshold.
  • the terminal device reports the PLMN information of the target cell to the NAS.
  • the terminal device may first search for the cell with the largest signal strength value in each frequency point, and then search for the cell with the largest number of network slice identifiers, and finally search for a beam quality greater than or equal to The cell with the largest number of beams with a preset threshold.
  • the target cell is at least one of the following: the cell with the largest signal strength value in the first cell, and the first cell includes all The cell with the largest number of network slice identifiers, and the cell with the largest number of beams with beam quality greater than or equal to a preset threshold in the first cell.
  • the terminal device may search for the cell with the largest signal strength value among the first cells at the first frequency point of the first frequency band, or the terminal device may Search for the cell with the largest number of network slice identifiers in the first cell of the first frequency point of the first frequency band, or the terminal device may search for the first cell of the first frequency point of the first frequency band with the beam quality greater than or equal to the preset threshold The cell with the largest number of beams.
  • the method of the embodiment of the present application will be described in detail.
  • the NAS of the terminal device instructs the AS to perform a cell search.
  • the AS of the terminal device can preferentially select at least the frequency band in the first network slice information, the frequency point corresponding to the frequency point identifier, and the cell corresponding to the cell identifier based on the acquired first network slice information.
  • the terminal device searches for the cell with the largest signal strength value among all the frequency points in the frequency band, and reports the PLMN information of this cell to the NAS.
  • the cell with the largest signal strength value may be for each frequency point, or may be for all frequency points.
  • the terminal device searches for the cell with the largest signal strength value among the frequency points corresponding to the frequency point identifier, and reports the PLMN information of this cell to the NAS.
  • the terminal device searches for the cell with the largest signal strength value among the cells corresponding to the cell identifier, and reports the PLMN information of this cell to the NAS.
  • the NAS of the terminal device instructs the AS to perform a cell search.
  • the AS of the terminal device may determine that at least one of the second frequency band, second frequency point, and second cell searched is included in the first network based on the acquired first network slice information
  • the terminal device will The PLMN information of at least one of the second frequency band, the second frequency point, and the second cell scanned by the frequency sweep is notified to the NAS.
  • the AS of the terminal device can notify the NAS that the corresponding PLMN is not found, or report the signal strength under the RAT
  • the terminal device searches for the cell with the largest signal strength value among all frequency points in the second frequency band, and reports the PLMN information of this cell to the NAS.
  • the cell with the largest signal strength value may be for each frequency point, or may be for all frequency points.
  • the terminal device searches for the cell with the largest signal strength value in the second frequency point, and reports the PLMN information of this cell to the NAS.
  • the terminal device searches for the cell with the largest signal strength value in the second cell, and reports the PLMN information of this cell to the NAS.
  • the terminal device obtains first network slice information, and the first network slice information includes information about at least one network slice supported by the terminal device, and the terminal device is based on the first network slice.
  • Information to perform cell search provides a technical solution to realize cell search after the introduction of network slicing technology, and terminal equipment performs cell search based on network slicing information, so that the terminal equipment can directly search for the cell of the network slicing supported by the terminal equipment, thereby Speed up the process of cell search.
  • FIG. 4 is a cell search apparatus 400 provided by an embodiment of the present application, and the apparatus 400 may be a terminal device.
  • the device 400 includes: an acquiring unit 410 and a searching unit 420.
  • the apparatus 400 is configured to execute various procedures and steps corresponding to the terminal equipment in the above-mentioned cell search method.
  • the obtaining unit 410 is configured to obtain first network slice information, where the first network slice information includes information about at least one network slice supported by the terminal device;
  • the searching unit 420 is configured to perform a cell search based on the first network slice information.
  • the first network slice information includes at least one of the following: a network slice identifier, a frequency band, a network slice priority, a cell identifier, and a frequency point identifier.
  • the searching unit 420 is specifically configured to:
  • Target information for cell search based on the first network slice information, where the target information includes at least one of a first frequency band, a first frequency point, and a first cell;
  • the first network slice information is information about one network slice supported by the terminal device
  • the first frequency band is the frequency band in the first network slice information
  • the first frequency point is a frequency point corresponding to the frequency point identifier in the first network slice information
  • the first cell is a cell corresponding to the cell identifier in the first network slice information.
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is one of the following: any of the frequency bands in the first network slice information, all the frequency bands in the first network slice information, and the first network slice information in the first network slice information.
  • the frequency band corresponding to a network slice priority, where the first network slice priority is determined based on a high priority priority selection principle;
  • the first frequency point is one of the following: frequency points corresponding to any one of the frequency point identifiers in the first network slice information, and frequency points corresponding to all the frequency point identifiers in the first network slice information , The frequency point corresponding to the frequency point identifier corresponding to the second network slice priority in the first network slice information, and the second network slice priority is determined based on the principle of high priority priority selection;
  • the first cell is one of the following: the cell corresponding to any one of the cell identifiers in the first network slice information, the cells corresponding to all the cell identifiers in the first network slice information, the first A cell corresponding to the cell identifier corresponding to the third network slice priority in the network slice information, and the third network slice priority is determined based on a high priority priority selection principle.
  • the first frequency band is a frequency band determined from at least one candidate frequency band
  • the first frequency point is a frequency point determined from at least one candidate frequency point
  • the first cell is a cell determined from at least one candidate cell
  • the at least one candidate cell, the at least one candidate frequency band, and the at least one candidate frequency point are all information searched by the terminal device.
  • the first network slice information is information about one network slice supported by the terminal device
  • the first frequency band is the first candidate frequency band, the first candidate frequency band matches the frequency band in the first network slice information, and the at least one candidate frequency band includes the first candidate frequency band;
  • the first frequency point is the first candidate frequency point, the first candidate frequency point matches the frequency point corresponding to the frequency point identifier in the first network slice information, and the at least one candidate frequency point Including the first candidate frequency point;
  • the first cell is the first candidate cell, the first candidate cell matches the cell corresponding to the cell identifier in the first network slice information, and the at least one candidate cell includes the first candidate Community.
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is the second candidate frequency band
  • the second candidate frequency band matches any one of the frequency bands in the first network slice information
  • the second candidate frequency band is the same as the first
  • the frequency band corresponding to the fourth slice priority in the network slice information matches, the fourth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency band includes the second candidate frequency band ;
  • the first frequency point is the second candidate frequency point
  • the second candidate frequency point matches a frequency point corresponding to any one of the frequency point identifiers in the first network slice information, or the first frequency point is The second candidate frequency band matches the frequency point corresponding to the frequency point identifier corresponding to the fifth slice priority, the fifth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency point includes The second candidate frequency point;
  • the first cell is the second candidate cell
  • the second candidate cell matches a cell corresponding to any one of the cell identifiers in the first network slice information, or the second candidate frequency band matches the first candidate frequency band.
  • the cells corresponding to the cell identifiers corresponding to the six slice priorities match, the sixth network slice priority is determined based on a high priority priority selection principle, and the at least one candidate cell includes the second candidate cell.
  • the searching unit 420 is specifically configured to:
  • the target cell is at least one of the following: a cell with the largest signal strength value among the frequency points of the first frequency band, and the frequency point of the first frequency band includes the network slice identifier A cell with the largest number, and a cell with the largest number of beams in the frequency point of the first frequency band whose beam quality is greater than or equal to a preset threshold;
  • the target cell is at least one of the following: a cell with the largest signal strength value in the first frequency point, and the first frequency point Includes the cell with the largest number of network slice identifiers and the cell with the largest number of beams in the first frequency point whose beam quality is greater than or equal to a preset threshold.
  • the target cell is at least one of the following: the cell with the largest signal strength value in the first cell, and the first cell includes all The cell with the largest number of network slice identifiers, and the cell with the largest number of beams with beam quality greater than or equal to a preset threshold in the first cell.
  • the device 400 here is embodied in the form of a functional unit.
  • the term "unit” here can refer to application-specific integrated circuits (ASICs), electronic circuits, processors for executing one or more software or firmware programs (such as shared processors, proprietary processors, or groups). Processor, etc.) and memory, merged logic circuits, and/or other suitable components that support the described functions.
  • ASICs application-specific integrated circuits
  • the apparatus 400 may be specifically the terminal device in the above-mentioned embodiment, and the apparatus 400 may be used to execute each process and/or step corresponding to the terminal device in the above-mentioned method embodiment. To avoid repetition, I won’t repeat them here.
  • the apparatus 400 of each of the foregoing solutions has the function of implementing the corresponding steps performed by the terminal device in the foregoing method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions; for example, the acquisition unit may be replaced by a transceiver, and the search unit may be replaced by a processor.
  • the device 400 in FIG. 4 may also be a chip or a chip system, such as a system on chip (System on Chip, SoC).
  • the acquisition unit may be the transceiver circuit of the chip, which is not limited here.
  • FIG. 5 shows a computer device 500 provided by an embodiment of the present application.
  • the computer device 500 includes a processor 510, a memory 520, a transceiver 530, and one or more programs, where the one or more programs are stored in In the above-mentioned memory 520, and is configured to be executed by the above-mentioned processor 510.
  • the computer device is a terminal device
  • the above-mentioned program includes instructions for executing the following steps:
  • first network slice information includes information about at least one network slice supported by the terminal device
  • the first network slice information includes at least one of the following: a network slice identifier, a frequency band, a network slice priority, a cell identifier, and a frequency point identifier.
  • the performing cell search based on the first network slice information includes:
  • Target information for cell search based on the first network slice information, where the target information includes at least one of a first frequency band, a first frequency point, and a first cell;
  • the first network slice information is information about one network slice supported by the terminal device
  • the first frequency band is the frequency band in the first network slice information
  • the first frequency point is a frequency point corresponding to the frequency point identifier in the first network slice information
  • the first cell is a cell corresponding to the cell identifier in the first network slice information.
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is one of the following: any of the frequency bands in the first network slice information, all the frequency bands in the first network slice information, and the first network slice information in the first network slice information.
  • the frequency band corresponding to a network slice priority, where the first network slice priority is determined based on a high priority priority selection principle;
  • the first frequency point is one of the following: frequency points corresponding to any one of the frequency point identifiers in the first network slice information, and frequency points corresponding to all the frequency point identifiers in the first network slice information , The frequency point corresponding to the frequency point identifier corresponding to the second network slice priority in the first network slice information, and the second network slice priority is determined based on the principle of high priority priority selection;
  • the first cell is one of the following: the cell corresponding to any one of the cell identifiers in the first network slice information, the cells corresponding to all the cell identifiers in the first network slice information, the first A cell corresponding to the cell identifier corresponding to the third network slice priority in the network slice information, and the third network slice priority is determined based on a high priority priority selection principle.
  • the first frequency band is a frequency band determined from at least one candidate frequency band
  • the first frequency point is a frequency point determined from at least one candidate frequency point
  • the first cell is a cell determined from at least one candidate cell
  • the at least one candidate cell, the at least one candidate frequency band, and the at least one candidate frequency point are all information searched by the terminal device.
  • the first network slice information is information about one network slice supported by the terminal device
  • the first frequency band is the first candidate frequency band, the first candidate frequency band matches the frequency band in the first network slice information, and the at least one candidate frequency band includes the first candidate frequency band;
  • the first frequency point is the first candidate frequency point, the first candidate frequency point matches the frequency point corresponding to the frequency point identifier in the first network slice information, and the at least one candidate frequency point Including the first candidate frequency point;
  • the first cell is the first candidate cell, the first candidate cell matches the cell corresponding to the cell identifier in the first network slice information, and the at least one candidate cell includes the first candidate Community.
  • the first network slice information is information about multiple network slices supported by the terminal device
  • the first frequency band is the second candidate frequency band
  • the second candidate frequency band matches any one of the frequency bands in the first network slice information
  • the second candidate frequency band is the same as the first
  • the frequency band corresponding to the fourth slice priority in the network slice information matches, the fourth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency band includes the second candidate frequency band ;
  • the first frequency point is the second candidate frequency point
  • the second candidate frequency point matches a frequency point corresponding to any one of the frequency point identifiers in the first network slice information, or the first frequency point is The second candidate frequency band matches the frequency point corresponding to the frequency point identifier corresponding to the fifth slice priority, the fifth network slice priority is determined based on the principle of high priority priority selection, and the at least one candidate frequency point includes The second candidate frequency point;
  • the first cell is the second candidate cell
  • the second candidate cell matches a cell corresponding to any one of the cell identifiers in the first network slice information, or the second candidate frequency band matches the first candidate frequency band.
  • the cells corresponding to the cell identifiers corresponding to the six slice priorities match, the sixth network slice priority is determined based on a high priority priority selection principle, and the at least one candidate cell includes the second candidate cell.
  • the performing cell search based on the target information to obtain target PLMN information includes:
  • the target cell is at least one of the following: a cell with the largest signal strength value among the frequency points of the first frequency band, and the frequency point of the first frequency band includes the network slice identifier A cell with the largest number, and a cell with the largest number of beams in the frequency point of the first frequency band whose beam quality is greater than or equal to a preset threshold;
  • the target cell is at least one of the following: a cell with the largest signal strength value in the first frequency point, and the first frequency point Includes the cell with the largest number of network slice identifiers and the cell with the largest number of beams in the first frequency point whose beam quality is greater than or equal to a preset threshold.
  • the target cell is at least one of the following: the cell with the largest signal strength value in the first cell, and the first cell includes all The cell with the largest number of network slice identifiers, and the cell with the largest number of beams with beam quality greater than or equal to a preset threshold in the first cell.
  • the memory 520 may include a read-only memory and a random access memory, and provide instructions and data to the processor.
  • a part of the memory may also include a non-volatile random access memory.
  • the memory can also store device type information.
  • the processor 510 of the foregoing apparatus may be a central processing unit (Central Processing Unit, CPU), and the processor 510 may also be other general-purpose processors, digital signal processors (DSP), or special purpose processors. Integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • 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 processor, or executed and completed by a combination of hardware and software units in the processor.
  • the software unit may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described by the device.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the terminal in the above-mentioned method. Some or all of the steps described by the device.
  • the computer program product may be a software installation package.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, 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 may 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 also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • the functional units in the various embodiments 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 above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit 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 is essentially or the part that contributes to the existing technology, or all or 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. It includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in 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 .

Landscapes

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

Abstract

本申请实施例提供了一种小区搜索方法及装置，该方法包括：终端设备获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息，终端设备基于所述第一网络切片信息进行小区搜索，提供了一种在引入网络切片技术后实现小区搜索的技术方案，并且终端设备基于网络切片信息进行小区搜索，使得终端设备可以直接搜索到终端设备支持的网络切片的小区，加快了小区搜索的过程。

Description

小区搜索方法及装置 技术领域
本申请涉及通信技术领域，具体涉及一种小区搜索方法及装置。
背景技术
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的多样性、复杂性，第5代蜂窝移动通信系统(5thGeneration，以下简称5G，也被称为NewRadio，新空口，或简称为NR)中的主要应用场景为：增强型移动宽带(enhanced Mobile Broad Band，eMBB)业务、大规模机器通信(massive Machine－type Communication，mMTC)业务和高可靠低时延通信(Ultra－relaible and Low Latency Communication，URLLC)。为了满足垂直行业对延迟、移动性、可靠性、位置精度等方面的需求，5G系统中引入了网络切片(networkslicing)技术。网络切片技术允许将网络划分为多个切片(slice)，不同类型的业务在不同的网络切片中传输，互相不干扰。例如，可以将上述三种应用场景中的业务划分到三个网络切片中，各个网络切片的计费策略、安全策略、服务质量(Quality of Service，QoS)策略等都可能不同，一个网络切片中出现大规模的业务拥塞不会影响到其它网络切片中业务的正常运转。
在引入网络切片技术之后，终端设备如何实现小区搜索是亟待解决的问题。
发明内容
本申请实施例提供了一种小区搜索方法及装置，能够加速小区搜索。
第一方面，本申请实施例提供一种小区搜索方法，应用于终端设备，该方法包括：
获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
基于所述第一网络切片信息进行小区搜索。
第二方面，本申请实施例提供一种小区搜索装置，应用于终端设备，该装置包括：
获取单元，用于获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
搜索单元，用于基于所述第一网络切片信息进行小区搜索。
第三方面，本申请实施例提供一种终端设备，所述终端设备包括处理器、存储器、收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行上述第一方面所述的方法中所描述的部分或全部步骤的指令。
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行上述第一方面所述的方法中所描述的部分或全部步骤。
第五方面，本申请实施例提供了一种计算机程序产品，其中，上述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，上述计算机程序可操作来使计算机执行如本申请实施例第一方面所述的方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，在本申请实施例中，终端设备获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息，终端设备基于所述第一网络切片信息进行小区搜索，提供了一种在引入网络切片技术后实现小区搜索的技术方案，并且终端设备基于网络切片信息进行小区搜索，使得终端设备可以直接搜索到终端设备支持的网络切片的小区，加快了小区搜索的过程。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种网络切片的示意图；
图2是本申请实施例提供的一种通信系统的构架示意图；
图3是本申请实施例提供的一种小区搜索方法的流程示意图；
图4是本申请实施例提供的一种小区搜素装置的结构示意图；
图5是本申请实施例提供的一种计算机设备的结构示意图。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
下面将结合附图，对本申请实施例中的技术方案进行描述。
为了更好地理解本申请实施例的方案，下面先对本申请实施例可能涉及的相关术语和概念进行介绍。
1)终端设备是一种具有无线通信功能的设备，可以部署在陆地上，包括室内或室外、手持、可穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球、卫星上等)。该终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、智能家庭(smart home)中的无线终端等。终端设备也可以是具有无线通信功能的手持设备、车载设备、可穿戴设备、计算机设备或连接到无线调制解调器的其他处理设备、未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等。在不同的网络中终端设备可以叫做不同的名称，例如：用户设备、接入终端、用户单元、用户站、移动站、移动台(Mobile Station，MS)、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、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)、5G网络或未来演进网络中的终端设备等，本申请实施例对此并不限定。
2)网络切片(Network Slicing)：在新一代通信系统中，为了满足不同业务的个性化需求，引入了网络切片。通过将网络资源进行切片，单一物理网络可以划分成多个逻辑虚拟网络，为典型的业务场景分配独立的网络切片，在切片内针对业务需求设计增强的网络架构，实现有效的资源分配和流程优化，多个网络切片共用网络基础设施，提高网络资源利用率，为不同用户群使用的不同业务提高最佳支持。网络切片主要针对核心网络的分区，RAN需要特定功能来支持多个切片或支持针对不同网络切片的资源分割，如图1所示，网络切片通常是支持一种或多种情况的通信服务要求的逻辑网络功能的集合，终端设备上报切片需求，网络设备根据终端设备上报的切片需求，选择合适的接入和移动性管理实体(Access and Mobility Management Function，AMF)，以建立终端设备和网络设备之间 的业务会话，例如，基于终端设备的订阅或类型，能够满足运营商或用户需求的方式将终端设备引导到所选择的切片。
3)无线资源控制(Radio Resource Control，RRC)状态：5G网络环境中为了降低空口信令和快速恢复无线连接，快速恢复数据业务的目的，定义一个新的RRC状态，即RRC＿INACTIVE(RRC非激活)态。这种状态有别于RRC＿IDLE(RRC空闲)态和RRC＿ACTIVE(RRC连接)态。
(1)RRC＿IDLE：移动性为基于UE的小区选择重选，寻呼由CN发起，寻呼区域由CN配置。基站侧不存在UE AS上下文。不存在RRC连接。
(2)RRC＿ACTIVE：存在RRC连接，基站和UE存在UE AS上下文。网络终端知道UE的位置是具体小区级别的。移动性是网络终端控制的移动性。UE和基站之间可以传输单播数据。
(3)RRC＿INACTIVE：移动性为基于UE的小区选择重选，存在CN－NR之间的连接，UE AS上下文存在某个基站上，寻呼由RAN触发，基于RAN的寻呼区域由RAN管理，网络终端知道UE的位置是基于RAN的寻呼区域级别的。
4)小区搜索：在终端设备进入系统覆盖区域时，终端设备执行小区搜索过程，以使得终端设备与小区达到时隙和频率上的同步。处于RRC＿IDLE态、RRC＿ACTIVE态和RRC＿INACTIVE态的终端设备在系统移动时都将进行小区搜索，以实现移动性。在小区搜索过程中，终端设备基同步信号块(Synchronization Signal Block，SSB)进行搜索。终端设备对支持的每一个频段依次扫频。SSB位于每个频段中的一组可能的位置。终端设备使用同步栅格对SSB进行搜索，在搜索到SSB后，终端设备可以获知小区标识和主信息块(Master Information Block，MIB)等系统信息。
5)公共陆地移动网(Public Land Mobile Network，PLMN)是由政府或它所批准的经营者向公众提供陆地移动通信服务而建立和经营的网络。PLMN通过移动国家码(Mobile Country Code，MCC)和移动网络码(Mobile Network Code，MNC)来识别。移动终端要获取语音、数据和多媒体等网络服务，首先需要选择一个合适的PLMN，在该PLMN下进行小区搜索，找到可用小区后，进行驻留并发起注册。在第三代合作伙伴计划(The 3rd Generation Partnership Project，3GPP)TS23.122协议中规定了移动终端自动选网时按照注册公用陆地移动网络(Registered PLMN，RPLMN)、本地公用陆地移动网络(Home PLMN，HPLMN)、用户控制公用陆地移动网络(User Controlled PLMN，UPLMN)、运营商控制公用陆地移动网络(Operator Controlled PLMN，OPLMN)和其它PLMN(Other PLMN)的顺序，终端选择一个合适的PLMN，进行网络注册。
第一部分，本申请所公开的技术方案的通信系统构架和背景介绍如下。
示例性的，请参见图2，图2示出了本申请实施例提供的一种通信系统构架示意图。该通信系统包括多个网络设备110和终端设备120，该多个网络设备110可以部署在无线接入网(Radio Access Network，RAN)10中，终端设备120的数量通常为多个，每个网络设备110所管理的小区内可以分布一个或多个终端设备120，在本申请实施例中，终端设备120进入系统覆盖范围时，终端设备120执行小区搜索过程，终端设备120在一个或多个网络设备110的覆盖范围内搜索满足要求的小区。
网络设备110和终端设备120可以通过空口技术相互通信，例如可以通过蜂窝技术相互通信。本申请实施例描述的方案可以适用于5G移动通信技术的系统、演进型长期演进(evolved Long Term Evolution，eLTE)系统，多种通信技术融合的通信系统(例如LTE技术和NR技术融合的通信系统)、或者后续演进通信系统。
该终端设备120在网络设备110的覆盖范围中，在实际应用中上述各个设备之间的连接可以为无线连接，为了方便直观地表示各个设备之间的连接关系，图2中采用实线示意。 网络设备110与终端设备120之间的通信链路可以包括：从网络设备110到终端设备120的下行链路(Down Link，DL)传输，和/或，从终端设备120到网络设备110的上行链路(Up Link，UP)传输。下行链路传输还可以被称为前向链路传输，上行链路传输还可以被称为反向链路传输。
本申请实施例所涉及到的RAN中的网络设备110可以是基站(Base Station，BS)，所述基站是一种部署在RAN中用以为终端提供无线通信功能的装置。所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如，在LTE系统中，称为演进的节点B(evolved NodeB，eNB或eNodeB)，在3G通信系统中，称为节点B(Node B)，在NR系统中，称为下一代节点(gnodeB，gNB)，以及继续演进的节点B(ng－eNB)，其中gNB和终端设备之间采用NR技术进行通信，ng－eNB和终端设备之间采用演进的UMTS陆地无线接入(Evolved Universal Terrestrial Radio Access，E－UTRA)技术进行通信，gNB和ng－eNB均可连接到5G核心网，本申请实施例中的网络设备还包含在未来新的通信系统中提供基站功能的设备等。随着通信技术的演进，“基站”这一名称可能会变化。为方便描述，本申请实施例中，上述为终端设备120提供无线通信功能的装置统称为网络设备。
需要说明的是，图2中所示的网络设备110和终端设备120的形态和数量仅用于举例，并不构成对本申请实施例的限定。
目前，为了满足垂直行业对延迟、移动性、可靠性、位置精度等方面的需求，RAN需要对如何在接入网支持垂直业务进行增强。其中，一种方式为基于网络切片对不同需求的多个业务提供更低时延，更有目标性，更大的灵活性和更高的可扩展性服务。更具体地说，RAN切片可以让应用程序提供商参与定制RAN的设计、部署和操作，以更好地支持应用程序提供商的业务。因此，Release 17引入接入网对切片的增强，但Release 17中并未涉及引入网络切片技术后实现小区搜索的技术方案，且现有技术中小区搜索时未考虑网络切片的信息，终端设备上报PLMN信息时也未考虑网络切片的信息，这样可能造成小区搜索过程的延长，影响用户体验。
针对上述问题，本申请提出一种小区搜索方法及装置，终端设备获取第一网络切片信息，该第一网络切片信息包括终端设备支持的至少一个网络切片的信息，终端设备基于该第一网络切片信息进行小区搜索，提供了一种在引入网络切片技术后实现小区搜索的技术方案，并且终端设备基于网络切片信息进行小区搜索，使得终端设备可以直接搜索到终端设备支持的网络切片的小区，加快了小区搜索的过程。
第二部分，本申请实施例所公开的权要保护范围介绍如下。
请参阅图3，图3为本申请实施例提供的一种小区搜索方法的流程示意图，该方法可以应用于如图2所示的通信系统中，如图3所示，该方法包括以下步骤：
S310、获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息。
在本申请实施例中，终端设备需要接入核心网进行业务传输时，终端设备可以获取满足所述终端设备业务需求的至少一个网络切片的信息，即所述终端设备支持的至少一个网络切片的信息。
其中，终端设备在注册入网之前，本地存储有预配置的第一网络切片信息，该终端设备可以从SIM卡中获取所述第一网络切片信息。在一些可能的示例中，终端设备也可以接收来自网络设备的第一网络切片信息，所述第一网络切片信息可以承载于RRC信令、MAC控制单元(MAC Control Element，MAC CE)信令或广播消息中。需要说明的是，终端设备接收来自网络设备的第一网络切片信息可以是本次扫频获取的，也可以是之前终端设备获取的，本申请实施例对此不做限定。
进一步地，RRC信令可以包括但不限于RRC Release消息、RRC connection reconfiguration消息、RRC connection reestablishment消息、RRC connection setup消息、RRC connection resume消息或其他RRC消息中的任意一种。
可选的，所述第一网络切片信息包括以下至少一项：网络切片标识、频段、网络切片优先级、小区标识和频点标识。
其中，所述网络切片标识可以包括一个或多个，即第一网络切片信息可以包括网络切片标识列表，所述网络切片标识可以用网络切片选择辅助信息(Network Slice Selection Assistance Information，NSSAI)来表示。NSSAI是由一个或多个单个网络切片选择辅助信息(Single Network Slice Selection Assistance Information，S－NSSAI)构成，每个S－NSSAI用于标识一个网络切片类型，也可以理解为，S－NSSAI用于标识网络切片，或者可以理解为S－NSSAI是网络切片的标识信息，例如，支持的网络切片包括网络切片1和网络切片2，第一网络切片信息中用于标识网络切片1的网络切片标识为S－NSSAI 1，用于标识网络切片2的网络切片标识为S－NSSAI 2。终端设备可以支持8个S－NSSAI。S－NSSAI由业务类型(Slice/ServiceType，SST)和相同SST下服务不同终端设备的切片组(Slice Differentiator，SD)组成。在一些可能的示例中，所述网络切片标识可以用网络切片标识(Network Slice Identity，NSID)，NSID用于标识网络切片类型。
进一步地，第一网络切片信息中包括至少一个网络切片的信息，第一网络切片信息中的每一网络切片的信息可以包括网络切片标识、频段、网络切片优先级、小区标识、频点标识中的至少一项，因此，所述频段、所述频点标识、所述小区标识和所述网络切片优先级均可以包括一个或多个。在本申请实施例中，所述第一网络切片信息可以以列表的形式存储，如表1所示；也可以分别单独存储，本申请实施例对此不做限定。
表1
网络切片标识 频段 频点标识 小区标识 网络切片优先级
S－NSSAI 1 2570MHz－2620MHz 1 A 2
S－NSSAI 2 1880MHz－1920MHz 2 B 3
…… …… …… …… ……
需要说明的是，一个网络切片中频段中可以包括一个或多个频点，一个频点中可以包括一个或多个小区，上述表1中的频段、频点标识和频点标识的数量和数据仅用于举例，并不构成对本申请实施例的限定。
S320、基于所述第一网络切片信息进行小区搜索。
在本申请实施例中，终端设备进入系统覆盖范围时，终端设备的非接入层(Non－Access Stratum，NAS)指示接入层(Access Stratum，AS)进行小区搜索，终端设备的AS接收到NAS的小区搜索指示后，基于所述第一网络切片信息进行小区搜索。
可选的，所述基于所述第一网络切片信息进行小区搜索包括：基于所述第一网络切片信息确定用于小区搜索的目标信息，所述目标信息包括第一频段、第一频点、第一小区中的至少一个；基于所述目标信息进行小区搜索，得到目标公共陆地移动网PLMN信息。
其中，在终端设备存储有小区信息的小区搜索过程时，终端设备的AS可以基于所述第一网络切片信息，筛选需要搜索的目标信息进行小区搜索，将小区搜索的结果通知给NAS。终端设备也可以根据自身的能力和设置，进行全频段的搜索，再基于所述第一网络切片信息确定搜索到的频段、频点、小区中的至少一项是否为所述终端设备支持的网络切片对应的频段、频点或小区，若是，终端设备将扫频得到的频段、频点或小区中的PLMN信息通知给所述NAS，否则，终端设备继续进行小区搜索。
本申请实施例提供了一种基于网络切片信息进行小区搜索的方法，通过基于网络切片的频段、频点、小区中的至少一项进行小区搜索，使得AS搜索到的小区能够满足终端设备 的网络切片需要，从而加速了小区搜索过程。
在一可能的实施例中，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；所述第一频段为所述第一网络切片信息中的所述频段；所述第一频点为所述第一网络切片信息中所述频点标识对应的频点；所述第一小区为所述第一网络切片信息中所述小区标识对应的小区。
具体地，若第一网络切片信息中只包括终端设备支持的一个网络切片的信息，终端设备可以根据该网络切片对应的频段、频点标识对应的频点、小区标识对应的小区中的至少一项进行搜索。
在一可能的实施例中，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为以下其中一种：所述第一网络切片信息中的任一所述频段、所述第一网络切片信息中的所有所述频段、所述第一网络切片信息中的第一网络切片优先级对应的所述频段，所述第一网络切片优先级是基于高优先级优先选择原则确定的；
所述第一频点为以下其中一种：所述第一网络切片信息中任一所述频点标识对应的频点、所述第一网络切片信息中所有所述频点标识对应的频点、所述第一网络切片信息中第二网络切片优先级对应的所述频点标识对应的频点，所述第二网络切片优先级是基于高优先级优先选择原则确定的；
所述第一小区为以下其中一种：所述第一网络切片信息中任一所述小区标识对应的小区、所述第一网络切片信息中所有所述小区标识对应的小区、所述第一网络切片信息中第三网络切片优先级对应的所述小区标识对应的小区，所述第三网络切片优先级是基于高优先级优先选择原则确定的。
具体地，若第一网络切片信息包括终端设备支持的多个网络切片的信息，终端设备可以随机选择第一网络切片信息中的频段、频点标识对应的频点、小区标识对应的小区中的至少一项进行搜索，或者，终端设备对第一网络切片中包括的所有频段、所有频点标识对应的频点、所有小区标识对应的小区中的至少一项进行搜索。进一步地，若第一网络切片信息中包括了多个网络切片的网络切片优先级时，终端设备可以按照网络切片优先级的顺序，优先选择网络切片优先级最高的网络切片对应的频段、频点标识对应的频点、小区标识对应的小区中的至少一项进行搜索，若终端设备没有搜索到合适的小区，则终端设备再搜索次网络切片优先级的网络切片对应的频段、频点标识对应的频点、小区标识对应的小区中的至少一项，依次类推，直至搜索到合适的小区。在本申请实施例中，提供了终端设备支持多个网络切片时进行小区搜索的方法，并保证了该网络切片优先级的网络切片的服务，从而加速了小区搜索过程。
在另一可能的实施例中，所述第一频段为从至少一个候选频段中确定的频段；所述第一频点为从至少一个候选频点中确定的频点；所述第一小区为从至少一个候选小区中确定的小区；所述至少一个候选小区、所述至少一个候选频段和所述至少一个候选频点均为所述终端设备搜索到的信息。
其中，在终端设备未存储小区信息时，终端设备可以根据自身的能力和设置，进行全频段的搜索，得到至少一个候选频段、至少一个候选频点、至少一个候选小区中的至少一项。终端设备再基于所述第一网络切片信息中的频段，从至少一个候选频段中确定所述第一频段，从至少一个候选频点中确定所述第一频点，从至少一个候选小区中确定所述第一小区。本申请实施例提供了一种基于网络切片信息进行小区搜索的方法，通过网络切片信息确定搜索的频段、频点、小区中的至少一项，使得AS搜索到的小区能够满足终端设备的网络切片需要，从而加速了小区搜索过程。
可选的，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
所述第一频段为所述第一候选频段，所述第一候选频段与所述第一网络切片信息中的所述频段相匹配，所述至少一个候选频段包括所述第一候选频段；
所述第一频点为所述第一候选频点，所述第一候选频点与所述第一网络切片信息中所述频点标识对应的频点相匹配，所述至少一个候选频点包括所述第一候选频点；
所述第一小区为所述第一候选小区，所述第一候选小区与所述第一网络切片信息中所述小区标识对应的小区相匹配，所述至少一个候选小区包括所述第一候选小区。
其中，终端设备将至少一个候选频段分别与第一网络切片信息中的频段进行匹配，在第一候选频段与第一网络切片信息中的频段匹配的情况下，将第一候选频段确定为第一频段。终端设备将至少一个候选频点分别与第一网络切片信息中的频点标识对应的频点进行匹配，在第一候选频点与第一网络切片信息中频点标识对应的频点匹配的情况下，将第一候选频点确定为第一频点。终端设备将至少一个候选小区分别与第一网络切片信息中的小区标识对应的小区进行匹配，在第一候选小区与第一网络切片信息中小区标识对应的小区匹配的情况下，将第一候选小区确定为第一小区。
进一步地，在至少一个候选频段、至少一个候选频点、至少一个候选小区中其中一项均与第一网络切片信息中的频段不匹配的情况下，终端设备AS可以通知NAS未搜索到对应的PLMN，或者，AS可以上报无线接入技术(Radio Access Technology，RAT)下信号质量最强小区的PLMN，和/或，向NAS指示该PLMN为非网络切片对应PLMN。
可选的，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为所述第二候选频段，所述第二候选频段与所述第一网络切片信息中的任一所述频段相匹配，或者，所述第二候选频段与所述第一网络切片信息中的第四切片优先级对应的所述频段相匹配，所述第四网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频段包括所述第二候选频段；
所述第一频点为所述第二候选频点，所述第二候选频点与所述第一网络切片信息中任一所述频点标识对应的频点相匹配，或者，所述第二候选频段与第五切片优先级对应的所述频点标识对应的频点相匹配，所述第五网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频点包括所述第二候选频点；
所述第一小区为所述第二候选小区，所述第二候选小区与所述第一网络切片信息中任一所述小区标识对应的小区相匹配，或者，所述第二候选频段与第六切片优先级对应的所述小区标识对应的小区相匹配，所述第六网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选小区包括所述第二候选小区。
其中，第一网络切片信息包括多个终端设备支持的网络切片的信息时，终端设备将至少一个候选频段分别与第一网络切片信息中的所有频段进行匹配，在第一候选频段与第一网络切片信息中的任一频段匹配的情况下，将第一候选频段确定为第一频段；或者，第一网络切片信息中包括了多个网络切片的网络切片优先级时，按照网络切片优先级的顺序，终端设备将至少一个候选频段分别与网络切片优先级最高对应的频段进行匹配，在第一候选频段与网络切片优先级最高对应的频段匹配的情况下，将第一候选频段确定为第一频段，否则终端设备再将至少一个候选频段分别与网络切片优先级次高对应的频段进行匹配，这样依次类推，直至确定第一频点。
其中，上述第四网络切片优先级为按照网络切片优先级的顺序，优先选择最高的网络切片优先级，若第一候选频段与最高的网络切片优先级对应的频段不匹配，第四网络切片优先级为次高的网络切片优先级，依次类推。
在本申请实施例中，第一频点和第一小区确定的方法与第一频段的方法类似，在此不再详细描述。在本申请实施例提供了终端设备支持多个网络切片时进行小区搜索的方法，并保证了该网络切片优先级的网络切片的服务，从而加速了小区搜索过程。
进一步地，在至少一个候选频段、至少一个候选频点、至少一个候选小区中其中一项均与第一网络切片信息中的所有频段不匹配的情况下，终端设备AS可以通知NAS未搜索到对应的PLMN，或者，AS可以上报无线接入技术(Radio Access Technology，RAT)下信号质量最强小区的PLMN，和/或，向NAS指示该PLMN为非网络切片对应PLMN。
需要说明的是，上述第一频段可以包括一个或多个频段，上述第一频点可以包括一个或多个频点，上述第一小区可以包括一个或多个小区。例如，在第一网络切片信息中包括终端设备支持的一个网络切片信息时，第一频段可以包括一个频段，在第一网络切片信息中包括终端设备支持的多个网络切片信息，且第一频段为第一网络切片信息中的所有频段时，第一频段可以包括多个频段。
在一可能的实施例中，所述基于所述目标信息进行小区搜索，得到目标PLMN信息包括：
基于所述目标信息搜索目标小区，所述目标小区为以下至少一项：所述第一频段的频点中信号强度值最大的小区、所述第一频段的频点中包括所述网络切片标识数量最多的小区、所述第一频段的频点中波束质量大于或等于预设门限的波束数量最多的小区；
将所述目标小区对应的PLMN信息确定为所述目标PLMN信息。
具体地，终端设备AS确定第一频段后，可以搜索第一频段的所有频点中信号强度值最大的小区，例如，假设第一频段包括频点1、频点2和频点3，频点1包括小区1，频点2包括小区2和小区3，频点3包括小区4和小区5，终端设备搜索所有频点中信号强度最大的小区，得到小区4，则目标小区为小区4。终端设备也可以搜索第一频段的每一个频点中信号强度值最大的小区，例如，假设第一频段包括频点1、频点2和频点3，频点1包括小区1，频点2包括小区2和小区3，频点3包括小区4和小区5，终端设备搜索每个频点中信号强度最大的小区，得到小区1，小区2和小区4，则目标小区包括小区1、小区2和小区4。在一可能的示例中，终端设备可以搜索第一频段的所有频点或每一个频点中信号强度值大于或等于信号强度阈值，且包括网络切片标识数量最多的小区，也可以理解为，终端设备搜索信号强度值在一定范围内与终端设备的网络切片匹配度最大(如匹配用户切片的个数最多，或者，匹配网络切片的个数最多)的小区。在一可能的示例中，终端设备可以搜索第一频段的所有频点或每一个频点中波束质量大于或等于预设门限的波束数量最多的小区。终端设备搜索得到目标小区后，将目标小区的PLMN信息上报给NAS。
进一步地，终端设备搜索第一频段的每一个频点时，第一搜索结果可以包括多个小区。为了优化PLMN选择的过程，终端设备可以在第一搜索结果包括多个信号强度值最大的小区时，再搜索多个信号强度值最大的小区中包括网络切片标识数量最多的小区，得到第二搜索结果，若第二搜索结果中包括多个小区，终端设备可以再从该多个小区中搜索波束质量大于或等于预设门限的波束数量最多的小区。例如，假设第一频段包括频点1、频点2和频点3，频点1包括小区1，频点2包括小区2和小区3，频点3包括小区4和小区5，终端设备搜索每个频点中信号强度最大的小区，得到小区1、小区2和小区4，之后终端设备再从小区1、小区2和小区4中搜索网络切片标识数量最多的小区，得到小区2和小区4，然后终端设备再从小区2和小区4中搜索波束质量大于或等于预设门限的波束数量最多的小区，得到小区2，最后将小区2作为目标小区。
可选的，在所述目标信息包括所述第一频点的情况下，所述目标小区为以下至少一项：所述第一频点中信号强度值最大的小区、所述第一频点中包括所述网络切片标识数量最多的小区、所述第一频点中波束质量大于或等于预设门限的波束数量最多的小区。
具体地，目标信息包括第一频点时，终端设备可以搜索第一频段的第一频点中信号强度值最大的小区，或者第一频段的第一频点中信号强度值大于或等于信号强度阈值，且包括网络切片标识数量最多的小区，或者第一频段的第一频点中波束质量大于或等于预设门限的波束数量最多的小区，或者第一频段的第一频点中信号强度值大于或等于信号强度阈 值，且包括网络切片标识数量最多且波束质量大于或等于预设门限的波束数量最多的小区。终端设备搜索得到目标小区后，将目标小区的PLMN信息上报给NAS。
进一步地，在第一频点包括多个频点时，终端设备可以先搜索每个频点中的信号强度值最大的小区，再搜索网络切片标识数量最多的小区，最后搜索波束质量大于或等于预设门限的波束数量最多的小区。
可选的，在所述目标信息包括所述第一小区的情况下，所述目标小区为以下至少一项：所述第一小区中信号强度值最大的小区、所述第一小区中包括所述网络切片标识数量最多的小区、所述第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
具体地，在目标信息包括第一小区，且第一小区包括多个小区时，终端设备可以搜索第一频段的第一频点的第一小区中信号强度值最大的小区，或者，终端设备可以搜索第一频段的第一频点的第一小区中网络切片标识数量最多的小区，或者，终端设备可以搜索第一频段的第一频点的第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
下面以第一网络切片信息包括终端设备支持的一个网络切片的信息为例，详细描述本申请实施例的方法。
终端设备进入系统覆盖范围时，终端设备的NAS指示AS进行小区搜索。终端设备的AS接收到NAS的小区搜索指示后，可以基于获取的第一网络切片信息，优先选择第一网络切片信息中的频段、频点标识对应的频点、小区标识对应的小区中的至少一项进行小区搜索，得到PLMN信息。具体地，终端设备搜索所述频段的所有频点中信号强度值最大的小区，将这个小区的PLMN信息报给NAS。其中，所述信号强度值最大的小区可以是每一个频点的，也可以是所有频点中的。或者，终端设备搜索所述频点标识对应的频点中信号强度值最大的小区，将这个小区的PLMN信息报给NAS。或者，终端设备搜索所述小区标识对应的小区中信号强度值最大的小区，将这个小区的PLMN信息上报给NAS。
在另一可能的示例中，终端设备进入系统覆盖范围时，终端设备的NAS指示AS进行小区搜索。终端设备的AS接收到NAS的小区搜索指示后，可以基于获取的第一网络切片信息，在确定搜索到的第二频段、第二频点、第二小区中的至少一项包括在第一网络切片信息时，即搜索到的第二频段、第二频点、第二小区分别是终端设备支持的网络切片对应的频段、频点标识对应的频点、小区标识对应的小区时，终端设备将扫频扫到的第二频段、第二频点、第二小区的至少一项的PLMN信息通知给NAS，否则，终端设备的AS可以通知NAS没有搜到对应的PLMN，或上报RAT下信号强度值最大小区的PLMN信息和/或指示该PLMN信息为非网络切片对应的PLMN信息。具体地，终端设备搜索所述第二频段的所有频点中信号强度值最大的小区，将这个小区的PLMN信息报给NAS。其中，所述信号强度值最大的小区可以是每一个频点的，也可以是所有频点中的。或者，终端设备搜索所述第二频点中信号强度值最大的小区，将这个小区的PLMN信息报给NAS。或者，终端设备搜索所述第二小区中信号强度值最大的小区，将这个小区的PLMN信息报给NAS。
可以看出，在本申请实施例中，终端设备获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息，终端设备基于所述第一网络切片信息进行小区搜索，提供了一种在引入网络切片技术后实现小区搜索的技术方案，并且终端设备基于网络切片信息进行小区搜索，使得终端设备可以直接搜索到终端设备支持的网络切片的小区，从而加快了小区搜索的过程。
下面结合图4，详细描述根据本申请实施例的小区搜索装置。
请参见图4，图4是本申请实施例提供的一种小区搜索装置400，该装置400可以是终端设备。该装置400包括：获取单元410和搜索单元420。
在一种可能的实现方式中，装置400用于执行上述小区搜索方法中终端设备对应的各个流程和步骤。
获取单元410，用于获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
搜索单元420，用于基于所述第一网络切片信息进行小区搜索。
可选的，所述第一网络切片信息包括以下至少一项：网络切片标识、频段、网络切片优先级、小区标识和频点标识。
可选的，所述搜索单元420具体用于：
基于所述第一网络切片信息确定用于小区搜索的目标信息，所述目标信息包括第一频段、第一频点、第一小区中的至少一个；
基于所述目标信息进行小区搜索，得到目标公共陆地移动网PLMN信息。
可选的，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
所述第一频段为所述第一网络切片信息中的所述频段；
所述第一频点为所述第一网络切片信息中所述频点标识对应的频点；
所述第一小区为所述第一网络切片信息中所述小区标识对应的小区。
可选的，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为以下其中一种：所述第一网络切片信息中的任一所述频段、所述第一网络切片信息中的所有所述频段、所述第一网络切片信息中的第一网络切片优先级对应的所述频段，所述第一网络切片优先级是基于高优先级优先选择原则确定的；
所述第一频点为以下其中一种：所述第一网络切片信息中任一所述频点标识对应的频点、所述第一网络切片信息中所有所述频点标识对应的频点、所述第一网络切片信息中第二网络切片优先级对应的所述频点标识对应的频点，所述第二网络切片优先级是基于高优先级优先选择原则确定的；
所述第一小区为以下其中一种：所述第一网络切片信息中任一所述小区标识对应的小区、所述第一网络切片信息中所有所述小区标识对应的小区、所述第一网络切片信息中第三网络切片优先级对应的所述小区标识对应的小区，所述第三网络切片优先级是基于高优先级优先选择原则确定的。
可选的，所述第一频段为从至少一个候选频段中确定的频段；
所述第一频点为从至少一个候选频点中确定的频点；
所述第一小区为从至少一个候选小区中确定的小区；
所述至少一个候选小区、所述至少一个候选频段和所述至少一个候选频点均为所述终端设备搜索到的信息。
可选的，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
所述第一频段为所述第一候选频段，所述第一候选频段与所述第一网络切片信息中的所述频段相匹配，所述至少一个候选频段包括所述第一候选频段；
所述第一频点为所述第一候选频点，所述第一候选频点与所述第一网络切片信息中所述频点标识对应的频点相匹配，所述至少一个候选频点包括所述第一候选频点；
所述第一小区为所述第一候选小区，所述第一候选小区与所述第一网络切片信息中所述小区标识对应的小区相匹配，所述至少一个候选小区包括所述第一候选小区。
可选的，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为所述第二候选频段，所述第二候选频段与所述第一网络切片信息中的任一所述频段相匹配，或者，所述第二候选频段与所述第一网络切片信息中的第四切片优先级对应的所述频段相匹配，所述第四网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频段包括所述第二候选频段；
所述第一频点为所述第二候选频点，所述第二候选频点与所述第一网络切片信息中任一所述频点标识对应的频点相匹配，或者，所述第二候选频段与第五切片优先级对应的所 述频点标识对应的频点相匹配，所述第五网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频点包括所述第二候选频点；
所述第一小区为所述第二候选小区，所述第二候选小区与所述第一网络切片信息中任一所述小区标识对应的小区相匹配，或者，所述第二候选频段与第六切片优先级对应的所述小区标识对应的小区相匹配，所述第六网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选小区包括所述第二候选小区。
可选的，在所述基于所述目标信息进行小区搜索，得到目标PLMN信息方面，所述搜索单元420具体用于：
基于所述目标信息搜索目标小区，所述目标小区为以下至少一项：所述第一频段的频点中信号强度值最大的小区、所述第一频段的频点中包括所述网络切片标识数量最多的小区、所述第一频段的频点中波束质量大于或等于预设门限的波束数量最多的小区；
将所述目标小区对应的PLMN信息确定为所述目标PLMN信息。
可选的，在所述目标信息包括所述第一频点的情况下，所述目标小区为以下至少一项：所述第一频点中信号强度值最大的小区、所述第一频点中包括所述网络切片标识数量最多的小区、所述第一频点中波束质量大于或等于预设门限的波束数量最多的小区。
可选的，在所述目标信息包括所述第一小区的情况下，所述目标小区为以下至少一项：所述第一小区中信号强度值最大的小区、所述第一小区中包括所述网络切片标识数量最多的小区、所述第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
应理解，这里的装置400以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置400可以具体为上述实施例中的终端设备，装置400可以用于执行上述方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置400具有实现上述方法中终端设备执行的相应步骤的功能；所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元；例如获取单元可以由收发机替代，搜索单元可以由处理器替代。
在本申请的实施例，图4中的装置400也可以是芯片或者芯片系统，例如：片上系统(System on Chip，SoC)。对应的，获取单元可以是该芯片的收发电路，在此不做限定。
图5示出了本申请实施例提供的一种计算机设备500，该计算机设备500包括处理器510、存储器520、收发器530以及一个或多个程序，其中，上述一个或多个程序被存储在上述存储器520中，并且被配置由上述处理器510执行。
在一种可能的实现方式中，该计算机设备为终端设备，上述程序包括用于执行以下步骤的指令：
获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
基于所述第一网络切片信息进行小区搜索。
可选的，所述第一网络切片信息包括以下至少一项：网络切片标识、频段、网络切片优先级、小区标识和频点标识。
可选的，所述基于所述第一网络切片信息进行小区搜索包括：
基于所述第一网络切片信息确定用于小区搜索的目标信息，所述目标信息包括第一频段、第一频点、第一小区中的至少一个；
基于所述目标信息进行小区搜索，得到目标公共陆地移动网PLMN信息。
可选的，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
所述第一频段为所述第一网络切片信息中的所述频段；
所述第一频点为所述第一网络切片信息中所述频点标识对应的频点；
所述第一小区为所述第一网络切片信息中所述小区标识对应的小区。
可选的，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为以下其中一种：所述第一网络切片信息中的任一所述频段、所述第一网络切片信息中的所有所述频段、所述第一网络切片信息中的第一网络切片优先级对应的所述频段，所述第一网络切片优先级是基于高优先级优先选择原则确定的；
所述第一频点为以下其中一种：所述第一网络切片信息中任一所述频点标识对应的频点、所述第一网络切片信息中所有所述频点标识对应的频点、所述第一网络切片信息中第二网络切片优先级对应的所述频点标识对应的频点，所述第二网络切片优先级是基于高优先级优先选择原则确定的；
所述第一小区为以下其中一种：所述第一网络切片信息中任一所述小区标识对应的小区、所述第一网络切片信息中所有所述小区标识对应的小区、所述第一网络切片信息中第三网络切片优先级对应的所述小区标识对应的小区，所述第三网络切片优先级是基于高优先级优先选择原则确定的。
可选的，所述第一频段为从至少一个候选频段中确定的频段；
所述第一频点为从至少一个候选频点中确定的频点；
所述第一小区为从至少一个候选小区中确定的小区；
所述至少一个候选小区、所述至少一个候选频段和所述至少一个候选频点均为所述终端设备搜索到的信息。
可选的，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
所述第一频段为所述第一候选频段，所述第一候选频段与所述第一网络切片信息中的所述频段相匹配，所述至少一个候选频段包括所述第一候选频段；
所述第一频点为所述第一候选频点，所述第一候选频点与所述第一网络切片信息中所述频点标识对应的频点相匹配，所述至少一个候选频点包括所述第一候选频点；
所述第一小区为所述第一候选小区，所述第一候选小区与所述第一网络切片信息中所述小区标识对应的小区相匹配，所述至少一个候选小区包括所述第一候选小区。
可选的，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
所述第一频段为所述第二候选频段，所述第二候选频段与所述第一网络切片信息中的任一所述频段相匹配，或者，所述第二候选频段与所述第一网络切片信息中的第四切片优先级对应的所述频段相匹配，所述第四网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频段包括所述第二候选频段；
所述第一频点为所述第二候选频点，所述第二候选频点与所述第一网络切片信息中任一所述频点标识对应的频点相匹配，或者，所述第二候选频段与第五切片优先级对应的所述频点标识对应的频点相匹配，所述第五网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频点包括所述第二候选频点；
所述第一小区为所述第二候选小区，所述第二候选小区与所述第一网络切片信息中任一所述小区标识对应的小区相匹配，或者，所述第二候选频段与第六切片优先级对应的所述小区标识对应的小区相匹配，所述第六网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选小区包括所述第二候选小区。
可选的，所述基于所述目标信息进行小区搜索，得到目标PLMN信息包括：
基于所述目标信息搜索目标小区，所述目标小区为以下至少一项：所述第一频段的频点中信号强度值最大的小区、所述第一频段的频点中包括所述网络切片标识数量最多的小 区、所述第一频段的频点中波束质量大于或等于预设门限的波束数量最多的小区；
将所述目标小区对应的PLMN信息确定为所述目标PLMN信息。
可选的，在所述目标信息包括所述第一频点的情况下，所述目标小区为以下至少一项：所述第一频点中信号强度值最大的小区、所述第一频点中包括所述网络切片标识数量最多的小区、所述第一频点中波束质量大于或等于预设门限的波束数量最多的小区。
可选的，在所述目标信息包括所述第一小区的情况下，所述目标小区为以下至少一项：所述第一小区中信号强度值最大的小区、所述第一小区中包括所述网络切片标识数量最多的小区、所述第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
应理解，该存储器520可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。
应理解，在本申请实施例中，上述装置的处理器510可以是中央处理单元(Central Processing Unit，CPU)，该处理器510还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
在实现过程中，上述方法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。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单元组合执行完成。软件单元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，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法中终端设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
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中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。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。本领域普通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，为了描述的方便和简洁，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。另外，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，也可以是电的，机械的或其它的形式连接。
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申请实施例方案的目的。
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，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元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，或者该技术方案的全部或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，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (24)

  1. 一种小区搜索方法，其特征在于，应用于终端设备，所述方法包括：
    获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
    基于所述第一网络切片信息进行小区搜索。
  2. 根据权利要求1所述的方法，其特征在于，所述第一网络切片信息包括以下至少一项：网络切片标识、频段、网络切片优先级、小区标识和频点标识。
  3. 根据权利要求2所述方法，其特征在于，所述基于所述第一网络切片信息进行小区搜索包括：
    基于所述第一网络切片信息确定用于小区搜索的目标信息，所述目标信息包括第一频段、第一频点、第一小区中的至少一个；
    基于所述目标信息进行小区搜索，得到目标公共陆地移动网PLMN信息。
  4. 根据权利要求3所述的方法，其特征在于，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
    所述第一频段为所述第一网络切片信息中的所述频段；
    所述第一频点为所述第一网络切片信息中所述频点标识对应的频点；
    所述第一小区为所述第一网络切片信息中所述小区标识对应的小区。
  5. 根据权利要求3所述的方法，其特征在于，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
    所述第一频段为以下其中一种：所述第一网络切片信息中的任一所述频段、所述第一网络切片信息中的所有所述频段、所述第一网络切片信息中的第一网络切片优先级对应的所述频段，所述第一网络切片优先级是基于高优先级优先选择原则确定的；
    所述第一频点为以下其中一种：所述第一网络切片信息中任一所述频点标识对应的频点、所述第一网络切片信息中所有所述频点标识对应的频点、所述第一网络切片信息中第二网络切片优先级对应的所述频点标识对应的频点，所述第二网络切片优先级是基于高优先级优先选择原则确定的；
    所述第一小区为以下其中一种：所述第一网络切片信息中任一所述小区标识对应的小区、所述第一网络切片信息中所有所述小区标识对应的小区、所述第一网络切片信息中第三网络切片优先级对应的所述小区标识对应的小区，所述第三网络切片优先级是基于高优先级优先选择原则确定的。
  6. 根据权利要求3所述的方法，其特征在于，
    所述第一频段为从至少一个候选频段中确定的频段；
    所述第一频点为从至少一个候选频点中确定的频点；
    所述第一小区为从至少一个候选小区中确定的小区；
    所述至少一个候选小区、所述至少一个候选频段和所述至少一个候选频点均为所述终端设备搜索到的信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
    所述第一频段为所述第一候选频段，所述第一候选频段与所述第一网络切片信息中的所述频段相匹配，所述至少一个候选频段包括所述第一候选频段；
    所述第一频点为所述第一候选频点，所述第一候选频点与所述第一网络切片信息中所述频点标识对应的频点相匹配，所述至少一个候选频点包括所述第一候选频点；
    所述第一小区为所述第一候选小区，所述第一候选小区与所述第一网络切片信息中所 述小区标识对应的小区相匹配，所述至少一个候选小区包括所述第一候选小区。
  8. 根据权利要求6所述的方法，其特征在于，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
    所述第一频段为所述第二候选频段，所述第二候选频段与所述第一网络切片信息中的任一所述频段相匹配，或者，所述第二候选频段与所述第一网络切片信息中的第四切片优先级对应的所述频段相匹配，所述第四网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频段包括所述第二候选频段；
    所述第一频点为所述第二候选频点，所述第二候选频点与所述第一网络切片信息中任一所述频点标识对应的频点相匹配，或者，所述第二候选频段与第五切片优先级对应的所述频点标识对应的频点相匹配，所述第五网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频点包括所述第二候选频点；
    所述第一小区为所述第二候选小区，所述第二候选小区与所述第一网络切片信息中任一所述小区标识对应的小区相匹配，或者，所述第二候选频段与第六切片优先级对应的所述小区标识对应的小区相匹配，所述第六网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选小区包括所述第二候选小区。
  9. 根据权利要求3－8任一项所述的方法，其特征在于，所述基于所述目标信息进行小区搜索，得到目标PLMN信息包括：
    基于所述目标信息搜索目标小区，所述目标小区为以下至少一项：所述第一频段的频点中信号强度值最大的小区、所述第一频段的频点中包括所述网络切片标识数量最多的小区、所述第一频段的频点中波束质量大于或等于预设门限的波束数量最多的小区；
    将所述目标小区对应的PLMN信息确定为所述目标PLMN信息。
  10. 根据权利要求9所述的方法，其特征在于，在所述目标信息包括所述第一频点的情况下，所述目标小区为以下至少一项：所述第一频点中信号强度值最大的小区、所述第一频点中包括所述网络切片标识数量最多的小区、所述第一频点中波束质量大于或等于预设门限的波束数量最多的小区。
  11. 根据权利要求9所述的方法，其特征在于，在所述目标信息包括所述第一小区的情况下，所述目标小区为以下至少一项：所述第一小区中信号强度值最大的小区、所述第一小区中包括所述网络切片标识数量最多的小区、所述第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
  12. 一种小区搜索装置，其特征在于，应用于终端设备，所述装置包括：
    获取单元，用于获取第一网络切片信息，所述第一网络切片信息包括所述终端设备支持的至少一个网络切片的信息；
    搜索单元，用于基于所述第一网络切片信息进行小区搜索。
  13. 根据权利要求12所述的装置，其特征在于，所述第一网络切片信息包括以下至少一项：网络切片标识、频段、网络切片优先级、小区标识和频点标识。
  14. 根据权利要求13所述的装置，其特征在于，所述搜索单元具体用于：
    基于所述第一网络切片信息确定用于小区搜索的目标信息，所述目标信息包括第一频段、第一频点、第一小区中的至少一个；
    基于所述目标信息进行小区搜索，得到目标公共陆地移动网PLMN信息。
  15. 根据权利要求14所述的装置，其特征在于，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
    所述第一频段为所述第一网络切片信息中的所述频段；
    所述第一频点为所述第一网络切片信息中所述频点标识对应的频点；
    所述第一小区为所述第一网络切片信息中所述小区标识对应的小区。
  16. 根据权利要求13所述的装置，其特征在于，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
    所述第一频段为以下其中一种：所述第一网络切片信息中的任一所述频段、所述第一网络切片信息中的所有所述频段、所述第一网络切片信息中的第一网络切片优先级对应的所述频段，所述第一网络切片优先级是基于高优先级优先选择原则确定的；
    所述第一频点为以下其中一种：所述第一网络切片信息中任一所述频点标识对应的频点、所述第一网络切片信息中所有所述频点标识对应的频点、所述第一网络切片信息中第二网络切片优先级对应的所述频点标识对应的频点，所述第二网络切片优先级是基于高优先级优先选择原则确定的；
    所述第一小区为以下其中一种：所述第一网络切片信息中任一所述小区标识对应的小区、所述第一网络切片信息中所有所述小区标识对应的小区、所述第一网络切片信息中第三网络切片优先级对应的所述小区标识对应的小区，所述第三网络切片优先级是基于高优先级优先选择原则确定的。
  17. 根据权利要求14所述的装置，其特征在于，
    所述第一频段为从至少一个候选频段中确定的频段；
    所述第一频点为从至少一个候选频点中确定的频点；
    所述第一小区为从至少一个候选小区中确定的小区；
    所述至少一个候选小区、所述至少一个候选频段和所述至少一个候选频点均为所述终端设备搜索到的信息。
  18. 根据权利要求17所述的装置，其特征在于，所述第一网络切片信息为所述终端设备支持的一个网络切片的信息；
    所述第一频段为所述第一候选频段，所述第一候选频段与所述第一网络切片信息中的所述频段相匹配，所述至少一个候选频段包括所述第一候选频段；
    所述第一频点为所述第一候选频点，所述第一候选频点与所述第一网络切片信息中所述频点标识对应的频点相匹配，所述至少一个候选频点包括所述第一候选频点；
    所述第一小区为所述第一候选小区，所述第一候选小区与所述第一网络切片信息中所述小区标识对应的小区相匹配，所述至少一个候选小区包括所述第一候选小区。
  19. 根据权利要求16所述的装置，其特征在于，所述第一网络切片信息为所述终端设备支持的多个网络切片的信息；
    所述第一频段为所述第二候选频段，所述第二候选频段与所述第一网络切片信息中的任一所述频段相匹配，或者，所述第二候选频段与所述第一网络切片信息中的第四切片优先级对应的所述频段相匹配，所述第四网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频段包括所述第二候选频段；
    所述第一频点为所述第二候选频点，所述第二候选频点与所述第一网络切片信息中任一所述频点标识对应的频点相匹配，或者，所述第二候选频段与第五切片优先级对应的所述频点标识对应的频点相匹配，所述第五网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选频点包括所述第二候选频点；
    所述第一小区为所述第二候选小区，所述第二候选小区与所述第一网络切片信息中任一所述小区标识对应的小区相匹配，或者，所述第二候选频段与第六切片优先级对应的所述小区标识对应的小区相匹配，所述第六网络切片优先级是基于高优先级优先选择原则确定的，所述至少一个候选小区包括所述第二候选小区。
  20. 根据权利要求13－19任一项所述的装置，其特征在于，在所述基于所述目标信息进行小区搜索，得到目标PLMN信息方面，所述搜索单元具体用于：
    基于所述目标信息搜索目标小区，所述目标小区为以下至少一项：所述第一频段的频 点中信号强度值最大的小区、所述第一频段的频点中包括所述网络切片标识数量最多的小区、所述第一频段的频点中波束质量大于或等于预设门限的波束数量最多的小区；
    将所述目标小区对应的PLMN信息确定为所述目标PLMN信息。
  21. 根据权利要求20所述的装置，其特征在于，在所述目标信息包括所述第一频点的情况下，所述目标小区为以下至少一项：所述第一频点中信号强度值最大的小区、所述第一频点中包括所述网络切片标识数量最多的小区、所述第一频点中波束质量大于或等于预设门限的波束数量最多的小区。
  22. 根据权利要求21所述的装置，其特征在于，在所述目标信息包括所述第一小区的情况下，所述目标小区为以下至少一项：所述第一小区中信号强度值最大的小区、所述第一小区中包括所述网络切片标识数量最多的小区、所述第一小区中波束质量大于或等于预设门限的波束数量最多的小区。
  23. 一种终端设备，其特征在于，所述终端设备包括处理器、存储器、收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1－11任一项所述的方法中的步骤的指令。
  24. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1－11任一项所述的方法。
PCT/CN2020/090327 2020-05-14 2020-05-14 小区搜索方法及装置 WO2021226953A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080099605.4A CN115380571A (zh) 2020-05-14 2020-05-14 小区搜索方法及装置
PCT/CN2020/090327 WO2021226953A1 (zh) 2020-05-14 2020-05-14 小区搜索方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/090327 WO2021226953A1 (zh) 2020-05-14 2020-05-14 小区搜索方法及装置

Publications (1)

Publication Number Publication Date
WO2021226953A1 true WO2021226953A1 (zh) 2021-11-18

Family

ID=78526273

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/090327 WO2021226953A1 (zh) 2020-05-14 2020-05-14 小区搜索方法及装置

Country Status (2)

Country Link
CN (1) CN115380571A (zh)
WO (1) WO2021226953A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107197486A (zh) * 2016-03-15 2017-09-22 中兴通讯股份有限公司 一种驻留目标选择方法、传输方法及装置
CN108024314A (zh) * 2016-11-03 2018-05-11 华为技术有限公司 一种选择网络的方法及装置
US20190174406A1 (en) * 2016-08-11 2019-06-06 Samsung Electronics Co., Ltd Service-based cell selection and reselection control method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107197486A (zh) * 2016-03-15 2017-09-22 中兴通讯股份有限公司 一种驻留目标选择方法、传输方法及装置
US20190174406A1 (en) * 2016-08-11 2019-06-06 Samsung Electronics Co., Ltd Service-based cell selection and reselection control method
CN108024314A (zh) * 2016-11-03 2018-05-11 华为技术有限公司 一种选择网络的方法及装置

Also Published As

Publication number Publication date
CN115380571A (zh) 2022-11-22

Similar Documents

Publication Publication Date Title
US11678259B2 (en) Network slice selection method, terminal device, and network device
US11265804B2 (en) Radio terminal, base station, and method therefor
CN109561423B (zh) 一种接入目标小区的方法以及装置
US11070946B2 (en) Method for establishing local network connection, terminal and network device
US20230069252A1 (en) Communication Method and Communication Apparatus
WO2018176482A1 (zh) 通信方法、核心网设备和接入网设备
JP2020511863A (ja) ネットワークスライスのための無線通信方法およびシステム
WO2019024816A1 (zh) 传输信息的方法和装置
JP6224723B2 (ja) Ｃｅｌｌｕｌａｒ−ＷｉＦｉ融合システムにおける一般装置から取得した情報を利用してＷｉＦｉネットワークを介してＡｃｃｅｓｓＰｏｉｎｔを登録する方法及び装置
US11290871B2 (en) Tracking area update methods and devices
JP2021029055A (ja) 無線端末及び基地局並びにこれらの方法
WO2023130471A1 (zh) 小区接入方法、装置、设备及可读存储介质
JP7253565B2 (ja) 通信方法及び通信装置
EP4142340A1 (en) Communication method and apparatus
US20220225082A1 (en) Communication Method, Communication Apparatus, and Storage Medium
WO2021226953A1 (zh) 小区搜索方法及装置
US20230300852A1 (en) Method for determining control channel element (cce) index and related products
WO2020156399A1 (zh) 一种消息发送方法及设备
WO2022022392A1 (zh) 一种终端设备的数据关联方法及装置
US20230388879A1 (en) Wireless communication method, terminal device, and storage medium
EP4351193A1 (en) Method, apparatus and system for relay communication
WO2023134516A1 (zh) 一种广播通信方法和装置
WO2023185374A1 (zh) 通信方法、通信装置和通信系统
WO2023125143A1 (zh) 小区重选方法及相关装置
WO2022236452A1 (zh) 基于切片的小区重选方法、装置、设备及存储介质

Legal Events

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

Ref document number: 20935884

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20935884

Country of ref document: EP

Kind code of ref document: A1