WO2022062939A1 - 非独立组网下确定锚点小区的方法和通信装置 - Google Patents

非独立组网下确定锚点小区的方法和通信装置 Download PDF

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Publication number
WO2022062939A1
WO2022062939A1 PCT/CN2021/117999 CN2021117999W WO2022062939A1 WO 2022062939 A1 WO2022062939 A1 WO 2022062939A1 CN 2021117999 W CN2021117999 W CN 2021117999W WO 2022062939 A1 WO2022062939 A1 WO 2022062939A1
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Prior art keywords
cell
cgi
terminal device
anchor cell
anchor
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PCT/CN2021/117999
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English (en)
French (fr)
Inventor
卢静静
赵志华
徐自翔
魏珍荣
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华为技术有限公司
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Publication of WO2022062939A1 publication Critical patent/WO2022062939A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W48/20—Selecting an access point

Definitions

  • the present application relates to the field of communications, and more particularly, to a method and a communication device for determining an anchor cell in a non-independent networking.
  • the fifth generation (5th Generation, 5G) system or the new radio (NR) communication system mostly adopts the non-standalone (NSA) mode in the early stage of networking.
  • NSA mode non-standalone
  • most networking methods in NSA mode use option 3 (Option 3x) as the preferred networking method, that is, 5G base stations preferentially access the 4th Generation (4G) core network, that is, both 5G base stations and 4G base stations are connected to It enters the 4G core network and communicates with the data network through the 4G core network.
  • 4G 4th Generation
  • LTE long term evolution
  • E-UTRA evolved universal terrestrial radio access
  • E-UTRA NR dual connectivity
  • EN-DC EN-DC dual connectivity
  • Another LTE base station does not support EN-DC dual connectivity, that is, a cell covered by the LTE base station does not support EN-DC dual connectivity, and such a cell may be called a non-anchor cell.
  • the anchor cell can support the 5G cell as a secondary cell, so that dual connectivity of the 5G network and the 4G network can be realized.
  • the non-anchor cell only supports the 4G network and does not support the NR cell as the secondary cell.
  • the anchor cell can be understood as an LTE cell that supports adding an NR cell as a secondary cell.
  • a terminal device such as a mobile phone
  • the terminal device uses the terminal device to manually search the network, and the searched cells are all non-anchor cells by default. to be processed. That is to say, using the existing manual network search technology, since the terminal device cannot distinguish between anchor cells and non-anchor cells, even if there is 5G network coverage, the terminal device cannot rely on the current manual network search to select anchor cells. Residency, and then the use of 5G networks, seriously affects the user experience.
  • the present application provides a method and a communication device for determining an anchor cell in a non-independent networking, which can enable a terminal device to distinguish between an anchor cell and a non-anchor cell. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • a method for determining an anchor cell in a non-independent networking includes: receiving indication information for instructing parsing of a system information block; parsing the system information block according to the indication information; and determining whether there is an anchor cell according to the parsing result, and the anchor cell supports new wireless NR Dual connectivity cell with access technology and Long Term Evolution System LTE access technology.
  • the method for determining the anchor cell under the non-independent networking provided by the first aspect under the NSA networking architecture, the SIB is parsed in the network search process, and the searched cell is distinguished as the anchor cell by parsing the system information block It is also a non-anchor cell to determine whether there is an anchor cell in the surrounding area, so that the user can distinguish between an anchor cell and a non-anchor cell. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the method for determining the anchor cell in the non-independent networking can be applied to the networking modes of Option 3 (Option 3), Option 3a (Option 3a), and Option 3x (Option 3x) under the NSA networking architecture. in the scene.
  • the anchor cell can support a 5G cell as a secondary cell, thereby realizing dual connectivity of a 5G network and a 4G network.
  • the anchor cell can be understood as an LTE cell that supports adding an NR cell as a secondary cell.
  • the terminal device can send the information of "start manual network search" to the network device through signaling.
  • the terminal device can send a manual search 5G network request to the network device.
  • the manual search 5G network request carries the instruction information used to instruct the terminal to start the manual search for the network.
  • the network device receives the manual search 5G network request, it determines that the terminal device needs to manually search for the 5G network, and the network device can send instruction information to the terminal device.
  • the indication information includes at least one of: network search type indication information, and radio access technology RAT indication information;
  • the network search type indication information is used to instruct to parse the public land mobile network PLMN list in the system information block, and the RAT indication information is used to indicate that the specified RAT is NR or LTE.
  • parsing the system information block includes:
  • the indication information parse the system information block SIB1; according to the SIB1, determine the global cell identity code CGI;
  • the preset CGI set includes the CGI of at least one anchor cell; if the CGI belongs to the preset CGI set, determine that the cell identified by the CGI is the anchor cell .
  • the CGI included in the preset CGI set may be understood as the CGI of the a priori anchor cell, and the CGI is used to identify the cell.
  • the a priori anchor cell can be understood as a cell that was an anchor cell before, that is, the cell was an anchor cell before, and the terminal device has camped on the a priori anchor cell before.
  • parsing the system information block includes:
  • the indication information parse the system information block SIB1; according to the SIB1, determine the global cell identity code CGI;
  • the preset CGI set includes the CGI of at least one anchor cell; in the case that the SIB2 includes the upper layer indication ULI, determine the SIB2 indication The cell is the anchor cell.
  • parsing the system information block includes:
  • the system information block SIB2 is parsed; if the SIB2 includes the upper layer indication ULI, the cell indicated by the SIB2 is determined as the anchor cell, wherein the preset CGI set includes the CGI of at least one anchor cell.
  • the method further includes: after an anchor cell is determined, stopping parsing the system information block.
  • this condition is used as the criterion for ending the search for the anchor cell, and the search speed is fast and the time is short.
  • the method further includes: after determining an anchor cell that satisfies the cell camping threshold and the S criterion, stopping parsing the system information block.
  • the search speed is fast, and the searched cell can satisfy the camping condition, and the user can choose to camp on the anchor cell, and the search efficiency is high .
  • the method further includes: after parsing the system information blocks corresponding to all cells on the full frequency band is completed, stopping parsing the system information blocks.
  • this condition is used as the criterion for ending the search for the anchor cell, and the search is more comprehensive.
  • the terminal equipment may search for multiple anchor cells, or may search for multiple anchor cells that satisfy the cell camping threshold and the S criterion, or the terminal equipment may also fail to search for the anchor cells.
  • the method further includes: displaying the information of the anchor cell to the user.
  • the method further includes: re-camping the cell on an anchor cell that satisfies the cell camping threshold and the S criterion.
  • a method for determining an anchor cell in a non-independent networking includes: the network device generates indication information, the indication information is used to instruct parsing of the system information block; the network device sends the indication information to the terminal device; the network device sends the system information block to the terminal device, where the system information block is used for the terminal device to determine Whether there is an anchor cell, the anchor cell is a dual-connectivity cell supporting the new wireless NR access technology and the Long Term Evolution System LTE access technology.
  • the terminal device can perform the system information block in the network search process. Parsing: By parsing the system information block to distinguish whether the searched cell is an anchor cell or a non-anchor cell, to determine whether there is an anchor cell in the surrounding area, so that the user can distinguish between anchor cells and non-anchor cells. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the indication information includes at least one of: network search type indication information, and radio access technology RAT indication information;
  • the network search type indication information is used to instruct to parse the public land mobile network PLMN list in the system information block, and the RAT indication information is used to indicate that the specified RAT is NR or LTE.
  • the system information block includes: a system information block SIB1 and a system information block SIB2.
  • a communication apparatus including a unit for performing each step in the above first aspect or any possible implementation manner of the first aspect.
  • a communication device comprising a unit for performing each step in the above second aspect or any possible implementation manner of the second aspect.
  • a communication device in a fifth aspect, includes at least one processor and a memory, where the at least one processor is configured to execute the method in the above first aspect or any possible implementation manner of the first aspect.
  • a communication apparatus in a sixth aspect, includes at least one processor and a memory, where the at least one processor is configured to execute the method in the above second aspect or any possible implementation manner of the second aspect.
  • a seventh aspect provides a communication device, the communication device includes at least one processor and an interface circuit, where the at least one processor is configured to execute the method in the first aspect or any possible implementation of the first aspect .
  • a communication device in an eighth aspect, includes at least one processor and an interface circuit, and the at least one processor is configured to execute the method in the above second aspect or any possible implementation manner of the second aspect .
  • a terminal device in a ninth aspect, includes any one of the communication apparatuses provided in the third aspect, the fifth aspect, or the seventh aspect.
  • a network device in a tenth aspect, includes any one of the communication apparatuses provided in the fourth aspect, the sixth aspect, or the eighth aspect.
  • a computer program product comprising a computer program, when executed by a processor, for performing the method in any one of the first to second aspects, or , for performing the method in any possible implementation manner of any one of the first aspect to the second aspect.
  • a twelfth aspect provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed, is used to execute any one of the first to second aspects.
  • a thirteenth aspect provides a chip, the chip comprising: a processor for calling and running a computer program from a memory, so that a communication device installed with the chip executes any one of the first to second aspects method, or a method for performing any possible implementation manner of any one of the first aspect to the second aspect.
  • the method for determining the anchor cell under the non-independent networking provided by the present application, under the NSA networking architecture, by parsing the SIB in the process of searching the network by the terminal equipment, and distinguishing the searched cell as the anchor cell by parsing the SIB It is still a non-anchor cell to determine whether there is an anchor cell in the surrounding area, so that the terminal device can distinguish between an anchor cell and a non-anchor cell. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • Figure 1 is a schematic diagram of the specific networking modes of option 3, option 3a, and option 3x under the NSA networking architecture.
  • FIG. 2 is a schematic diagram of a manual network search process of an existing multi-mode terminal device.
  • FIG. 3 is a schematic diagram of an example of a display interface when a user performs an operation when a user manually searches the Internet according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an example of a display interface of a user initiating a detection function of a 5G network provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the overall architecture of an example of a terminal device provided by the present application for implementing the method provided by the present application.
  • FIG. 6 is a schematic flowchart of an example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of another example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of another example of a method for determining an anchor cell in a non-standalone networking provided by an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of another example of the structure of a communication apparatus provided by an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of another example of the structure of a communication device provided by an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of another example of the structure of a communication apparatus provided by an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of another example of the structure of a communication apparatus provided by an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • plural means two or more.
  • the technical solutions of the embodiments of the present application can be applied to the LTE system, the LTE frequency division duplex (FDD) system, the LTE time division duplex (TDD), and the universal mobile telecommunication system (UMTS). ), the worldwide interoperability for microwave access (WiMAX) communication system, and the 5G system or NR, etc.
  • LTE LTE frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G system or NR etc.
  • the terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or terminals in the future evolution of the public land mobile network (PLMN) equipment, etc., which are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system of mobile communication (GSM) system or a code division multiple access (code division multiple access, CDMA)
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • the base station (base transceiver station, BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolutionary base station (evolutional base station) in the LTE system NodeB, eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and 5G
  • the network equipment in the network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.
  • the method provided by the present application can be applied to the NSA networking architecture.
  • the following describes the NSA networking architecture applicable to the embodiment of the present application with reference to FIG. 1 .
  • Figure 1 shows the specific networking modes of Option 3 (Option 3), Option 3a (Option 3a), and Option 3x (Option 3x) under the NSA networking architecture.
  • Figure a in Figure 1 shows the Option 3 networking mode.
  • the user plane data and control plane data of the 5G base station are connected to the 4G core network through the enhanced 4G base station, that is, there is no direct connection between the 5G base station and the 4G core network. Interaction of data information and control information.
  • Figure b in Figure 1 shows the Option 3a networking mode.
  • the user plane data of the 5G base station is directly connected to the 4G core network, and the control plane data continues to be anchored to the 4G base station.
  • Figure c in Figure 1 shows the Option 3x networking mode, which divides the user plane data of the 5G base station into two parts, one part is directly interacted with the 5G base station and the 4G core network, and the other part is through the 4G base station and the 4G core network. interaction between networks. Control plane data continues to be anchored to 4G base stations.
  • FIG. 2 is a schematic diagram of a manual network search process of an existing multi-mode terminal device.
  • the manual network search process of the existing multi-mode terminal equipment mainly includes steps 1 to 8:
  • Step 1 The terminal equipment resides on the LTE cell, and the mobility management control module (mobile management control, MMC) triggers the user to perform a manual PLMN list (PLMN LIST) network search through AT+COPS.
  • MMC mobility management control
  • Step 2 The multi-service credit control module (multiple services credit control, MSCC) sends a manual PLMN list (PLMN LIST) search request to the MMC.
  • MSCC multiple services credit control
  • PLMN LIST manual PLMN list
  • Step 3 The MMC starts the manual PLMN list search request according to the received manual PLMN list (PLMN LIST) search request.
  • Step 4 The MMC sends a manual PLMN list search request to an LTE mobile management module (LTE mobile manager, LMM), specifying that the search type is PLMN list search.
  • LTE mobile management module LTE mobile manager, LMM
  • Step 5 The MMC waits for the manual search result fed back by the LMM.
  • Step 6 The LMM searches the network in the PLMN list by using the background search method, and sends the manual network search result to the MMC.
  • Step 7 The MMC sends the PLMN list search result to the MSCC.
  • Step 8 The MMC exits the PLMN list search network.
  • the background search network can be understood as a type of search performed by the terminal device under the condition of normal network presence and no business state.
  • a single-mode terminal device can be understood as that the terminal device supports a radio access technology (Radio Access Technology, RAT), for example, an LTE access technology.
  • the multi-mode terminal device can be understood as the terminal device supporting multiple radio access technologies, for example, supporting LTE access technology and NR access technology.
  • the existing manual network search solution cannot distinguish whether the searched cell is an anchor cell or a non-anchor cell, and it is processed according to 4G, that is, it is processed according to the non-anchor cell. Users cannot know whether the cell they are currently camping on is an anchor cell or a non-anchor cell, and cannot choose between 4G and 5G networks.
  • FIG. 3 is a schematic diagram of the display interface when the user performs an operation when the user manually searches the Internet.
  • a in Figure 3 it is assumed that China Telecom has 5G network coverage in the area where the user is located, and the display strategy of the signal bar of the user's mobile phone can show that China Telecom has a 5G network signal.
  • Figure 3 shows an example of the display strategy of the signal bar of the user's mobile phone, which can show that China Telecom has a 5G network signal.
  • China Telecom actually has 5G network coverage in the area where the user is located, but the display policy of the signal bar of the user's mobile phone is that it cannot display the presence of 5G network signals in China Telecom, that is, the signal display bar in Figure 3 Among them, China Telecom still shows 4G signal.
  • the user may ask the operator to determine whether there is a 5G network in the area where the user is currently located. After determining that there is a 5G network, the result of the user's manual network search is still consistent with that shown in d in Figure 3.
  • the existing manual network search solution in the cell where the user resides, even if there is 5G network coverage, since the terminal device regards the searched cell as a non-anchor cell, the user can only access the non-anchor cell.
  • Use 4G network That is to say, in the area covered by 5G network, anchor cells and non-anchor cells are mixed together.
  • the existing manual network search method it is impossible to self-check the existence of 5G network, and it is impossible to distinguish anchor cells and non-anchor cells.
  • the user cannot choose the anchor point for camping first, and cannot use the 5G network, which seriously affects the user experience.
  • the present application provides a method for determining an anchor cell in a non-independent networking.
  • SIB system information blocks
  • the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the traditional manual network search can be distinguished from the 5G network detection, and a display interface is set on the application layer of the terminal device, and the 5G network detection switch is turned on.
  • the display interface can individually prompt the user whether to start the 5G network coverage scan, the user clicks the "OK" button, and issues a 5G network search command, and the terminal device starts the 5G network detection.
  • Fig. 4 shows an example of a schematic operation diagram for starting the detection function of a 5G network, as shown in a in Fig. 4, for clicking the "Settings" menu, the displayed interface is shown in b in Fig.
  • the interface displayed after that is as shown in d in Figure 4.
  • the user can click on the "Mobile Network” menu to manually search for 5G networks, so as to execute the method for determining anchor cells in a non-standalone network provided by this application.
  • the terminal device is a multi-mode terminal device, and the specific configuration includes:
  • the physical layer (PHY) of the terminal device protocol stack supports the full-band (fullband) search of the system information block 2 (system information blocks, SIB2);
  • the radio resource control (RRC) layer of the terminal device protocol stack supports initiating the scan of the anchor cell in the NSA networking mode, and reports the scan result to the application layer;
  • a new interface is added between the non-access stratum (NAS) and the access stratum to implement a specified RAT (such as LTE or NR). Further, this interface can also be used to implement a designated RAT priority frequency band. (prefband) list search function, and provide the corresponding AT interface to perform manual network search of the anchor cell;
  • a new 5G network scanning interface is added to the radio interface layer (RIL) for upper-layer applications to call;
  • RIL radio interface layer
  • the upper-layer application calls the 5G network scanning interface and displays the scanning result (anchor cell or non-anchor cell) to the user;
  • the terminal device scans the available 5G cell (5G network), and can automatically initiate the registration and camping of the anchor cell.
  • FIG. 5 is a schematic diagram of an overall architecture of a terminal device for implementing the method provided by the embodiment of the present application.
  • the user clicks the display interface on the application layer of the terminal device, for example, as shown in Figure 4, starts the 5G network search, transmits it to the wireless interface layer RIL through the application framework layer (framework) of the terminal device, and uses The 5G network scanning interface transmission of the wireless interface layer is transmitted to the core network side through NAS signaling, and the NAS sends an instruction to the new wireless physical layer (NR physical, NPHY) through the new radio resource control (NR radio resource control, NRRC) to determine the The anchor cell, and sends an instruction to the LTE physical layer (LTE physical, LPHY) through the LTE radio resource control (LTE radio resource control, LRRC) to determine the anchor cell.
  • NR physical, NPHY new wireless physical layer
  • NR radio resource control NR radio resource control
  • LTE radio resource control LTE radio resource control
  • LPHY and NPHY After LPHY and NPHY determine the detection results, they report the detection results to LRRC and NRRC respectively, transmit them to the RIL layer of the terminal device through NAS signaling, and transmit them to the application layer through the 5G network scanning interface of the RIL layer, and finally display the scan results at the application layer. to users.
  • the application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer.
  • the application framework layer may include some predefined functions, such as functions for receiving events sent by the application framework layer.
  • the application framework layer may include a window manager, a resource manager, a notification manager, a view system, and the like.
  • FIG. 6 is a schematic flowchart of a method 100 for determining an anchor cell in a non-standalone networking according to an embodiment of the present application. This method can be applied to, for example, the non-independent networking scenario shown in FIG. 1 . It should be understood that the method provided in the present application may also be applied to other non-independent networking systems, which are not limited in this embodiment of the present application.
  • a terminal device and a network device are used as the main body of execution to describe the method provided by the present application.
  • the execution body of the execution method may also be a chip applied in the terminal device and the network device.
  • the method 100 shown in FIG. 6 may include S110 to S140. Each step in the method 100 will be described in detail below with reference to FIG. 6 .
  • the network device sends indication information to the terminal device, where the indication information is used to instruct to parse the system information block.
  • the terminal device receives the indication information.
  • the network device sends the system information block to the terminal device, and correspondingly, the terminal device receives the system information block.
  • the terminal device parses the system information block according to the indication information.
  • the terminal device determines, according to the analysis result, whether there is an anchor cell, where the anchor cell is a dual-connectivity cell supporting the NR access technology and the LTE access technology.
  • the terminal device can send the information of "start manual network search" to the network device through signaling, which is used to notify the network device that the terminal device performs (or starts) manual search for 5G The internet.
  • the terminal device may send a manual 5G network search request to the network device, where the manual 5G network search request carries instruction information for instructing the terminal to start manual network search.
  • the network device can send instruction information to the terminal device, where the instruction information is used to instruct the terminal device to parse the SIB when searching the network.
  • the indication information may be used to indicate that the terminal device needs to distinguish between anchor cells and non-anchor cells when manually searching for a network.
  • the indication information may be specifically used to instruct the terminal device to parse SIB1 and SIB2 when searching the network.
  • the network search type specified by the manual 5G network search request may be a PLMN list (PLMN LIST) search network.
  • PLMN LIST PLMN list
  • the terminal device may be a multi-mode terminal device, a network operator that provides a network for the terminal device has deployed a 5G network, and the terminal device may utilize a 4G network and a 5G network.
  • the network device may send the SIB to the terminal device. Specifically, the network device may send SIB1 and SIB2 to the terminal device. Correspondingly, the terminal device receives the SIB1 and SIB2 sent by the network device.
  • the terminal device can parse the SIB.
  • the end device can parse SIB1, or, parse SIB1 and SIB2. Thereby, it is determined whether the cell where the terminal device currently resides is an anchor cell, or whether a cell existing in the current environment has an anchor cell, so that the terminal device can distinguish between an anchor cell and a non-anchor cell.
  • the method for determining the anchor cell under the non-independent networking provided by the present application, under the NSA networking architecture, by parsing the SIB in the process of searching the network by the terminal equipment, and distinguishing the searched cell as the anchor cell by parsing the SIB It is still a non-anchor cell to determine whether there is an anchor cell in the surrounding area, so that the terminal device can distinguish between an anchor cell and a non-anchor cell. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the indication information includes: at least one of network search type indication information and RAT indication information.
  • the network search type (SRCH TEYP) indication information is used to instruct the terminal device to parse the PLMN list in the system information block.
  • the terminal device parses the PLMN list means that the terminal device needs to parse the SIB when searching the network, that is, it needs to parse the PLMN list.
  • the RAT indication information indicates that the designated RAT is NR or LTE.
  • the specified RAT is NR or LTE, which means that the terminal device also needs to parse the SIB when searching the network, that is, it needs to distinguish between anchor cells and non-anchor cells.
  • the indication information there is no limitation on the specific content included in the indication information and the form of the indication information, as long as the indication information is used to instruct the terminal device to parse the SIB (including SIB1 and SIB2) when searching the network, so as to distinguish anchors Point cells and non-anchor cells can be used.
  • the indication information may also carry other contents to instruct the terminal device to parse the SIB when searching the network.
  • the embodiments of the present application are not limited herein.
  • the terminal device may search (parse) the SIB by using a background search network (or may also be referred to as a background search).
  • a background search network or may also be referred to as a background search.
  • the terminal device parses SIB1 in the form of background search network, or parses SIB1 and SIB2.
  • the terminal device can use the background search method to parse the SIB, so as to distinguish the anchor cell and the non-anchor cell.
  • S130 in the method 100 may specifically include: S131 to S133 , and S140 may specifically be Includes: S141:
  • the terminal device parses the system information block SIB1 according to the indication information.
  • the terminal device determines a global cell identifier (cell global identifier, CGI) according to the SIB1.
  • CGI cell global identifier
  • the terminal device determines whether the CGI belongs to a preset CGI set, where the preset CGI set includes the CGI of at least one anchor cell.
  • the terminal device determines that the cell identified by the CGI is the anchor cell.
  • the terminal device when the terminal device locally stores the preset CGI set, after receiving the SIB1, the terminal device parses the SIB1 first.
  • the preset CGI set includes the CGI of at least one anchor cell, and the CGI included in the preset CGI set may be understood as the CGI of the a priori anchor cell, and the CGI is used to identify the cell.
  • the a priori anchor cell can be understood as a cell that was an anchor cell before, that is, the cell was an anchor cell before, and the terminal device has camped on the a priori anchor cell before.
  • the terminal device may determine the CGI included in the SIB1. In S133, the terminal device determines whether the CGI in the SIB1 is the same as the CGI of the a priori anchor cell, that is, determines whether the CGI in the SIB1 belongs to a preset CGI set.
  • the CGI in SIB1 belongs to a preset CGI set, that is, the CGI in SIB1 is the same as a certain CGI in the preset CGI set, it proves that the cell identified by the CGI in SIB1 is an anchor cell, and the cell can be added Secondary cell group (SCG) dual link.
  • the cell identified by the CGI in the SIB1 is the cell where the terminal device currently resides, that is, the serving cell. In this case, the terminal equipment does not need to parse the SIB2 corresponding to the cell.
  • the terminal device continues to parse the CGI in the SIB1 corresponding to the other cell, for example, by a method similar to S133 to determine whether the other cell is the anchor cell.
  • the terminal device in the case where the terminal device locally stores the preset CGI set, taking FIG. 8 as an example, on the basis of the method steps shown in FIG. S130 in 100 may specifically include: S131 to S134.
  • S140 may specifically include: S142.
  • the terminal device parses the SIB1 according to the indication information.
  • the terminal device determines the CGI according to the SIB1.
  • the terminal device blocks SIB2.
  • the terminal device determines that the cell indicated by the SIB2 is an anchor cell.
  • UCI upper layer indication
  • S131 to S133 can refer to the description of these steps in FIG. 7 , which will not be repeated here.
  • S134 in the case that the CGI does not belong to the preset CGI set, it is proved that the cell identified by the CGI in SIB1 is not Prior to the anchor cell, it cannot be determined whether the cell is the anchor cell by using the CGI in SIB1.
  • the terminal device may continue to parse SIB2, and use the result of parsing SIB2 to determine whether the cell indicated by SIB2 is the anchor cell.
  • the cell indicated by SIB2 and the The cell identified by the CGI in the SIB1 is the same cell, and the cell is the cell where the terminal device currently resides, that is, the serving cell.
  • the terminal device determines whether the SIB2 includes the ULI according to the analysis result of the received SIB2. If ULI is configured in SIB2, it proves that the cell indicated by SIB2 is the anchor cell.
  • the terminal equipment needs to continue the process of background network search, that is, continue to search for SIB1 corresponding to another cell, or continue to search for SIB1 and SIB2 corresponding to another cell, until the anchor cell is found.
  • the S130 in the method 100 may specifically include: S135.
  • S140 may specifically include: S142.
  • S135 parse the system information block SIB2 according to the indication information.
  • the SIB2 in the case that the SIB2 includes the ULI indicated by the upper layer, determine that the cell indicated by the SIB2 is the anchor cell, where the preset CGI set includes the CGI of at least one anchor cell.
  • the terminal device may not need to parse the SIB1. Specifically, the terminal device may not parse the CGI in the SIB1, but directly parse the SIB2 after receiving the SIB2.
  • the terminal device determines whether the SIB2 includes the ULI according to the parsing result of the SIB2. If ULI is configured in SIB2, it proves that the cell indicated by SIB2 is the anchor cell.
  • the terminal equipment needs to continue the process of background network search, that is, continue to search for SIB1 corresponding to another cell, or continue to search for SIB1 and SIB2 corresponding to another cell, until the anchor cell is found.
  • the terminal device can use any one of the following three network search methods to search for the anchor cell in the background:
  • the first way when the terminal device locally stores the preset CGI set, the terminal device uses the network search process shown in Figure 7 (that is, only analyzes SIB1) to search for the anchor cell in the background, and determine the current location of the terminal device. Whether the remaining cell is the anchor cell.
  • the second way when the terminal device locally stores the preset CGI set, use the network search process (analyzing SIB1 and SIB2) as shown in Figure 8 to search for the anchor cell in the background, and determine the current location of the terminal device. Whether the cell is an anchor cell.
  • the third way when the terminal device does not store the preset CGI set locally, use the network search process shown in Figure 9 (only parse SIB2, not parse the CGI in SIB1) to search for anchor cells in the background, and determine the terminal Whether the cell where the device currently resides is the anchor cell.
  • the terminal device can use any one of the above three ways to search for the anchor cell.
  • the first condition after determining an anchor cell, stop parsing the SIB, that is, stop searching the network.
  • the cell identified by the CGI in SIB1 is determined to be the anchor cell, and the background network search process is stopped. For example, stop parsing the SIB2 corresponding to the cell and stop parsing the SIBs (including SIB1 and SIB2) corresponding to other cells.
  • SIB1 if the CGI in SIB1 is different from the CGI of the prior anchor cell, but SIB2 includes ULI, then it is determined that the cell where the terminal device currently resides is the anchor cell, and the background network search process is stopped. For example, stop parsing the SIBs (including SIB1 and SIB2) corresponding to other cells.
  • the terminal device does not store the preset CGI set locally, but the SIB2 includes ULI
  • the second condition after determining an anchor cell that satisfies the cell camping threshold and the S criterion, stop parsing the SIB, that is, stop searching the network.
  • the S criterion is used to determine whether a certain cell can be a cell where the terminal equipment resides, in other words, the S criterion can be used to determine whether the terminal equipment can be handed over from one cell to another cell.
  • the terminal device may choose to camp on the cell.
  • the CGI in SIB1 is the same as the CGI of the a priori anchor cell. If the small value of the CGI identifier in SIB1 satisfies the cell camping threshold and the S criterion, stop parsing the SIB2 corresponding to this cell and stop parsing the SIBs (including SIB1) corresponding to other cells. and SIB2). If the cell identified by the CGI in SIB1 does not meet at least one of the cell camping threshold and the S criterion, it proves that although the cell identified by the CGI is the anchor cell, the user cannot camp on the anchor cell.
  • the terminal device needs to be able to analyze the SIB1, or SIB1 and SIB2 corresponding to other cells, by using any one of the above three methods. If it is determined that a certain anchor cell satisfies the cell camping threshold and the S criterion, stop the background network search process, for example, stop parsing the SIBs (including SIB1 and SIB2) corresponding to other cells.
  • SIB2 includes ULI, determine whether the anchor cell indicated by SIB2 satisfies the cell camping threshold and S criterion. If the anchor cell indicated by SIB2 satisfies the cell camping threshold and the S criterion, stop parsing the SIBs (including SIB1 and SIB2) corresponding to other cells. If the anchor cell indicated by SIB2 does not satisfy at least one of the cell camping threshold and the S criterion, continue searching for SIBs (including SIB1 and SIB2) corresponding to other cells.
  • the terminal device can continue to search for the anchor cell that satisfies the cell camping threshold and the S criterion by using any one of the above-mentioned three network search methods, until it finds an anchor cell that satisfies the cell camping threshold and the S criterion, and stops parsing. SIB.
  • Qrxlevmeas indicates the detected reference signal receiving power (RSRP) of the cell
  • Qrxlevmin is the minimum receiving level of the cell, generally -128dbm
  • Qrxlevminoffset indicates the offset of the minimum receiving level, generally set to 0
  • Pcompensation max(Pmax-Pumax, 0)
  • Pmax represents the maximum transmit power allowed by the terminal device in the current serving cell
  • Pumax represents the maximum uplink transmit power of the terminal device
  • Qqualmeas refers to the detected reference signal receiving quality (reference signal receiving quality, RSRQ)
  • Qqualmin refers to the lowest received reference signal quality, generally set to -18
  • Qqualminoffset refers to the lowest reference signal received quality offset, generally also set to 0.
  • the cell camping threshold may be preconfigured or predefined by a protocol.
  • the third condition After parsing the system information blocks corresponding to all cells on the full band, stop parsing the SIB.
  • the terminal equipment needs to search for the anchor cell on the full frequency band, that is, for each cell on the full frequency band, use any one of the above three network search methods to continue to search for the anchor cell.
  • Each cell needs to parse SIB1, or parse SIB1 and SIB2, or parse SIB2, so as to determine whether the searched cell is an anchor cell.
  • the terminal equipment may search for multiple anchor cells, or may search for multiple anchor cells that satisfy the cell camping threshold and the S criterion, or the terminal equipment may also fail to search for anchor cells.
  • the first condition is used to judge whether to end the search for the anchor cell, the search speed is fast, and the time is short, but the searched cell may not meet the camping conditions, and the user cannot choose to camp on the anchor point on the community.
  • the second condition is used to judge whether to end the search of the anchor cell, the search speed is fast, and the searched cell can meet the camping condition, and the user can choose to camp on the anchor cell.
  • the third condition is used to judge whether to end the search of the anchor cell.
  • the search is comprehensive, but the speed is slow and the time required is relatively long.
  • the search process of the anchor cell will be ended in advance. If there is no anchor cell that satisfies the first condition or the second condition, it needs to wait until the entire fullBand search ends before determining whether there is an anchor cell.
  • the terminal device may display the information of the searched anchor cell to the user.
  • the terminal device can display to the user whether there is an anchor cell.
  • the user can re-camp the terminal device from the currently camped cell.
  • the terminal device can use the cell reselection process to reselect to the anchor cell. If multiple anchor cells are searched, or multiple anchor cells that satisfy the cell camping threshold and the S criterion are searched, the terminal device may select the anchor cell with the best signal to camp on.
  • FIG. 10 is a schematic flowchart of an example of a method 200 for determining an anchor cell in a non-standalone networking provided by the present application. As shown in FIG. 10 , the method 200 includes: S201 to S214.
  • the user issues an AT command through the interface of the terminal device and uses the newly added AT interface to trigger the process of manually searching for 5G.
  • the user can click on "mobile network" as shown in d in Figure 4 to trigger the process of manually searching for 5G.
  • the MSCC module sends a request for manually searching for a 5G network to the MMC, and the network search type specified by the request is a PLMN list (PLMN LIST) search request.
  • PLMN list PLMN LIST
  • the MMC module after receiving the request to manually search the 5G network, the MMC module sends a notification of entering the network search state to a registration management module (register manager, REGM).
  • a registration management module register manager, REGM
  • the REGM replies to the MMC that the entry into the network search state is successful.
  • the MMC sends a request to manually search the 5G network to the LMM, the request specifies that the search type is a PLMN list (PLMN LIST) search, and the request carries the specified RAT as LTE.
  • the specified RAT can also be is NR.
  • the LMM sends a request for manually searching for a 5G network to the LRRC, where the request specifies that the search type is a PLMN list (PLMN LIST) search, and the request carries the specified RAT as LTE.
  • the specified RAT may also be NR.
  • the LRRC sends a request for starting the background search LTE to the LHPY, and specifies the background search for analyzing the SIB2 type.
  • the current cell is identified as the anchor cell.
  • the current cell may be understood as a cell where the terminal device currently resides, and the cell where the terminal device currently resides may also be referred to as a serving cell. If no ULI is configured in SIB2, the current cell is considered to be a non-anchor cell. If the current cell is the anchor cell, it is necessary to further judge whether the anchor cell satisfies the camping condition (for example, whether it satisfies the cell camping threshold and the S criterion).
  • the LHPY replies to the LRRC with confirmation information (confirm) that the manual search for the 5G network is successful, and the information carries the information of the anchor cell. information.
  • the LRRC reports to the LMM confirmation information that the manual search for the 5G network is successful.
  • the LMM reports to the MMC confirmation information that the manual search for the 5G network is successful.
  • the MMC reports to the MSCC confirmation information that the manual search for the 5G network is successful.
  • the MSCC reports the successful result of the manual search of the 5G network to the application layer, and the application layer displays the network search result to the user.
  • the network search result includes: whether there is an anchor cell.
  • FIG. 10 includes a NAS process and an access stratum (access stratum, AS) process.
  • Fig. 11 is a schematic diagram of a specific process (method) of the AS process in the process shown in Fig. 10, specifically, is a specific process of interaction between LRRC and LHPY, as shown in Fig. 11, the method 300 is specific Including: S301 to S314.
  • the LTE Non-access stratum sends a request to LRRC to manually search for a 5G network, the RAT specified in the request is LTE, and carries a search network type of PLMN list (PLMN LIST) for parsing SIB2. network.
  • LNAS LTE Non-access stratum
  • PLMN LIST search network type of PLMN list
  • the LRRC sends a request to start the background search SIB2 to the LPHY, and S302 is equivalent to S207 in the flow shown in FIG. 10 .
  • S303 the LPHY replies to the LRRC confirmation information for starting the background search of the SIB2, and S303 is equivalent to S208 in the flow shown in FIG. 10 .
  • a cell selection (cell selection, CSEL) module sends a cell (cell) search request to the LPHY.
  • the LPHY sends cell search confirmation information to the CSEL.
  • the CSEL sends a request for acquiring the system information block to the LPHY.
  • the LPHY acquires a physical broadcast channel (PBCH), the PBCH is used to receive a master information block (MIB), and the LPHY acquires a physical downlink shared channel (PDSCH) according to the PBCH , the PDSCH is used to receive the SIB.
  • PBCH physical broadcast channel
  • MIB master information block
  • PDSCH physical downlink shared channel
  • the LPHY receives and parses the SIB to determine whether there is an anchor cell.
  • the LPHY sends a background search end request to the CSEL.
  • the CSEL sends a background search end request to a cell selection process control (cell selection process control, CSELPC) module.
  • cell selection process control cell selection process control, CSELPC
  • CSELPC sends a background search end request to a cell selection background (cell selection background, CSELBG) module.
  • the CSELBG sends a background search end request to the LPHY.
  • the LPHY sends the background search completion confirmation letter confirmation message to the CSELBG.
  • the CSELBG sends the information of the searched anchor cell to the LNAS.
  • the LNAS can report the confirmation information of the successful manual search of the 5G network at the application layer, and the application layer displays the search result of the anchor cell to the user.
  • the SIB1 in the process of searching for the anchor cell in the physical layer background, the SIB1 may be parsed first, and whether it is the anchor cell is determined according to the CGI in the SIB1. Specifically, it is determined whether the CGI in SIB1 is the same as the CGI of the prior anchor cell. If the CGI in SIB1 is the same as the CGI of the prior cell, the cell identified by the CGI in SIB1 is the anchor cell.
  • the information of the anchor cell is sent to the LNAS. If the anchor cell is not searched, or the searched anchor cell does not meet the camping threshold and the S criterion, continue to perform the cell search process, that is, continue to analyze the SIB1 and SIB2 corresponding to the next cell.
  • the first condition the search ends when an anchor cell is found.
  • the second condition the search ends when an anchor cell that satisfies the camping threshold and the S criterion is found.
  • the third condition full-band search, which ends when all cells on the full-band are searched.
  • the method shown in S308 may be used to determine whether the cell is an anchor cell.
  • the terminal device can display the search situation of the manual anchor point search to the user at the application layer, and inform the user whether there is 5G network coverage.
  • the user After searching for an anchor cell that satisfies the camping threshold and the S criterion, or, after determining an anchor cell that satisfies the camping threshold and the S criterion among the searched anchor cells, the user can be triggered to perform a cell reselection process. By making the user camp on the anchor cell, the user can use the 5G network to improve communication quality and user experience.
  • the method for determining the anchor cell under the non-independent networking provided by the present application, under the NSA networking architecture, by parsing the SIB in the network search process, and by parsing the system information block to distinguish whether the searched cell is the anchor cell or the anchor cell
  • the non-anchor cell is used to determine whether there is an anchor cell in the surrounding area, so that the user can distinguish the anchor cell from the non-anchor cell. It is realized that the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • pre-set and pre-defined may be pre-saved in a device (for example, including a terminal and a network device), a corresponding code, a table, or other methods that can be used to indicate relevant information
  • a device for example, including a terminal and a network device
  • a corresponding code for example, including a terminal and a network device
  • a table for example, a table, or other methods that can be used to indicate relevant information
  • FIG. 12 shows a schematic block diagram of a communication apparatus 400 according to an embodiment of the present application.
  • the communication apparatus 400 may correspond to the terminal equipment described in the foregoing methods 100 to 300, or may be a chip or component applied to the terminal equipment, and, Each module or unit of the communication apparatus 400 is respectively configured to execute each action or processing process performed by the terminal device in each of the embodiments in the foregoing method 100 to method 300.
  • the communication apparatus 400 may include: Communication unit 410 and processing unit 420.
  • Communication unit 410 receive indication information, where the indication information is used to instruct parsing the system information block;
  • a processing unit 420 configured to parse the system information block according to the indication information
  • the processing unit 420 is further configured to determine, according to the analysis result, whether there is an anchor cell, where the anchor cell is a dual-connectivity cell supporting the new wireless NR access technology and the long-term evolution system LTE access technology.
  • the communication device provided by the present application determines whether the surrounding area is an anchor cell or a non-anchor cell by parsing the SIB in the network search process, and by parsing the system information block to distinguish whether the searched cell is an anchor cell or a non-anchor cell.
  • anchor cells so that users can distinguish between anchor cells and non-anchor cells.
  • the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the indication information includes at least one of: network search type indication information, and radio access technology RAT indication information;
  • the network search type indication information is used to instruct to parse the public land mobile network PLMN list in the system information block, and the RAT indication information is used to indicate that the specified RAT is NR or LTE.
  • the processing unit 420 is further configured to:
  • the preset CGI set includes the CGI of at least one anchor cell
  • the CGI belongs to the preset CGI set, it is determined that the cell identified by the CGI is the anchor cell.
  • the processing unit 420 is further configured to:
  • the CGI does not belong to the preset CGI set, parse the system information block SIB2, and the preset CGI set includes the CGI of at least one anchor cell;
  • the SIB2 includes the ULI indicated by the upper layer, it is determined that the cell indicated by the SIB2 is the anchor cell.
  • the processing unit 420 is further configured to:
  • the SIB2 includes the ULI indicated by the upper layer
  • the cell indicated by the SIB2 is the anchor cell
  • the preset CGI set includes the CGI of at least one anchor cell
  • the processing unit 420 is further configured to:
  • the processing unit 420 is further configured to:
  • the processing unit 420 is further configured to:
  • the processing unit 420 is further configured to: display the information of the anchor cell to the user.
  • the processing unit 420 is further configured to: re-camp the cell on the anchor cell that satisfies the cell camping threshold and the S criterion.
  • the communication unit 410 may include a receiving unit (module) and a sending unit (module), configured to perform the steps of receiving information and sending information by the terminal device in each of the foregoing method embodiments.
  • the communication apparatus 400 may further include a storage unit for storing the instructions executed by the processing unit 420 and the communication unit 410 .
  • the processing unit 420, the communication unit 410 and the storage unit are communicatively connected, the storage unit stores instructions, the processing unit 420 is used to execute the instructions stored in the storage unit, and the communication unit 410 is used to perform specific signal sending and receiving under the driving of the processing unit 420.
  • the communication unit 410 may be a transceiver, an input/output interface or an interface circuit, or the like.
  • the storage unit may be a memory.
  • the processing unit 420 may be implemented by a processor.
  • the communication apparatus 500 may include a processor 510 , a memory 520 and a transceiver 530 .
  • the communication apparatus 400 shown in FIG. 12 or the communication apparatus 500 shown in FIG. 13 can implement the various embodiments of the foregoing methods 100 to 300 and the steps performed by the terminal equipment in the related embodiments shown in FIGS. 6 to 11 . Similar descriptions can refer to the descriptions in the aforementioned corresponding methods. In order to avoid repetition, details are not repeated here.
  • the communication apparatus 400 shown in FIG. 12 or the communication apparatus 500 shown in FIG. 13 may be terminal equipment, or the terminal equipment may include the communication apparatus 400 shown in FIG. 12 or the communication apparatus 500 shown in FIG. 13 .
  • FIG. 14 shows a schematic block diagram of a communication apparatus 600 according to an embodiment of the present application.
  • the communication apparatus 600 may correspond to the network equipment described in the foregoing method 100, or may be a chip or component applied to the network equipment, and the communication apparatus Each module or unit of 600 is respectively used to perform each action or processing process performed by the network device in each embodiment of the above method.
  • the communication apparatus 600 may include: a processing unit 610 and a communication unit 620.
  • a processing unit 610 configured to generate indication information, the indication information is used to instruct the terminal device to parse the system information block;
  • a communication unit 620 configured to send the indication information
  • the communication unit 620 is further configured to send the system information block, and the system information block uses the terminal device to determine whether there is an anchor cell, where the anchor cell supports the new wireless NR access technology and the long-term evolution system LTE access technology. Dual connected cells.
  • the communication device provided by this application sends instruction information and a system information block to the terminal device, so that the terminal device can parse the system information block in the network search process, and distinguish the search by parsing the system information block.
  • the terminal device can detect whether there is 5G network coverage around by itself, and then can preferentially choose to stay in the anchor cell to use the 5G network when there is 5G network coverage, so as to improve the communication quality and user experience.
  • the indication information includes at least one of: network search type indication information, and radio access technology RAT indication information;
  • the network search type indication information is used to instruct to parse the public land mobile network PLMN list in the system information block, and the RAT indication information is used to indicate that the specified RAT is NR or LTE.
  • the system information block includes: a system information block SIB1 and a system information block SIB2.
  • the communication unit 620 may include a receiving unit (module) and a sending unit (module), configured to perform the steps of receiving information and sending information by the network device in each of the foregoing method embodiments.
  • the communication apparatus 600 may further include a storage unit for storing the instructions executed by the processing unit 610 and the communication unit 620 .
  • the processing unit 610, the communication unit 620 and the storage unit are communicatively connected, the storage unit stores instructions, the processing unit 610 is used to execute the instructions stored in the storage unit, and the communication unit 620 is used to perform specific signal transmission and reception under the driving of the processing unit 610.
  • the communication unit 620 may be a transceiver, an input/output interface or an interface circuit, or the like.
  • the storage unit may be a memory.
  • the processing unit 610 may be implemented by a processor. As shown in FIG. 15 , the communication apparatus 700 may include a processor 710 , a memory 720 and a transceiver 730 .
  • the communication apparatus 600 shown in FIG. 14 or the communication apparatus 700 shown in FIG. 15 can implement the various embodiments in the foregoing method 100 and the steps performed by the network device in the related embodiments shown in FIGS. 6 to 9 . Similar descriptions can refer to the descriptions in the aforementioned corresponding methods. In order to avoid repetition, details are not repeated here.
  • the communication apparatus 600 shown in FIG. 14 or the communication apparatus 700 shown in FIG. 15 may be network equipment, or the network equipment may include the communication apparatus 600 shown in FIG. 14 or the communication apparatus 700 shown in FIG. 15 .
  • each unit in the above apparatus can be realized in the form of software calling through the processing element; also can all be realized in the form of hardware; some units can also be realized in the form of software calling through the processing element, and some units can be realized in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing. Function.
  • the processing element may also be called a processor, which may be an integrated circuit with signal processing capability.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, eg, one or more application specific integrated circuits (ASICs), or, one or more A plurality of digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processors that can invoke programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the embodiment of the present application further provides a communication system, where the communication system includes: the terminal device and the network device provided by the above-mentioned embodiment of the present application.
  • Embodiments of the present application further provide a computer-readable storage medium for storing computer program codes, where the computer program includes a method for determining an anchor cell in a non-independent networking provided by any of the foregoing embodiments of the present application instruction.
  • the readable medium may be a read-only memory (read-only memory, ROM) or a random access memory (random access memory, RAM), which is not limited in this embodiment of the present application.
  • the present application also provides a computer program product, the computer program product includes an instruction, when the instruction is executed, so that the terminal device and the network device correspond to the corresponding operations in the above method.
  • An embodiment of the present application further provides a chip in a communication device, the chip includes: a processing unit and a communication unit, the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin or a circuit, etc.
  • the processing unit can execute computer instructions, so that the communication device executes any of the methods for determining an anchor cell in a non-standalone network provided by the above embodiments of the present application.
  • the computer instructions are stored in a storage unit.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit can also be a storage unit located outside the chip in the terminal, such as a read-only memory (ROM). ) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • the processor mentioned in any one of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the program execution of the above-mentioned feedback information transmission method.
  • the processing unit and the storage unit can be decoupled, respectively disposed on different physical devices, and connected in a wired or wireless manner to implement the respective functions of the processing unit and the storage unit, so as to support the system chip to implement the above embodiments various functions in .
  • the processing unit and the memory can also be coupled on the same device.
  • the communication device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the above-provided method. The beneficial effects in the corresponding method will not be repeated here.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be ROM, programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM) , EEPROM) or flash memory.
  • Volatile memory can be RAM, which acts as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate Synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory direct memory bus random access memory Access memory
  • direct rambus RAM direct rambus RAM
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases.
  • the character "/" in this document generally indicates that the related objects are an "or” relationship.
  • the methods in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer program or instructions may be stored in or transmitted over a computer-readable storage medium.
  • the computer-readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server that integrates one or more available media.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a readable storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

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Abstract

本申请提供了一种非独立组网下确定锚点小区的方法和通信装置，可以应用在NSA组网架构中，该方法包括：接收指示信息，该指示信息用于指示解析系统信息块；根据该指示信息，解析该系统信息块；根据解析结果，确定是否有锚点小区，该锚点小区为支持NR接入技术和LTE接入技术的双连接小区。本申请提供的非独立组网下确定锚点小区的方法，通过在搜网流程中解析SIB来区分搜索到的小区为锚点小区还是非锚点小区，确定周边是否有锚点小区的存在，使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。

Description

非独立组网下确定锚点小区的方法和通信装置
本申请要求于2020年9月23日提交国家知识产权局、申请号为202011007777.2、申请名称为“非独立组网下确定锚点小区的方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，更为具体的，涉及一种非独立组网下确定锚点小区的方法和通信装置。
背景技术
第五代(5th Generation，5G)系统或新无线(new radio，NR)通信系统在组网初期大多采用非独立组网(non stand alone,NSA)模式。目前，大多数NSA模式下组网方式使用选项3(Option 3x)作为优先的组网方式，即5G基站优先接入第4代(4th Generation，4G)核心网，即5G基站和4G基站均接入到4G核心网，通过4G核心网与数据网络之间进行通信。
对NSA而言，NR不能作为一种独立的接入技术来进行搜网。在网络架构中存在两种长期演进(long term evolution，LTE)基站，一种LTE基站支持演进的通用陆面无线接入(evolved universal terrestrial radio access，E-UTRA)与NR双连接(E-UTRA NR dual connectivity，EN-DC)双连接，即LTE基站覆盖的小区支持EN-DC双连接，这种小区可以称为锚点小区。另一种LTE基站不支持EN-DC双连接，即LTE基站覆盖的小区不支持EN-DC双连接，这种小区可以称为非锚点小区。锚点小区可以支持5G小区作为辅小区，从而可以实现5G网络和4G网络的双连接，非锚点小区仅仅支持4G网络，不支持NR小区作为辅小区。换句话说，锚点小区可以理解为支持添加NR小区作为辅小区的LTE小区。目前，终端设备(例如手机)手动搜网时，即使在有5G网络覆盖的区域，用户利用终端设备在手动搜网的过程中，将搜索到的小区均默认为非锚点小区，均按照4G进行处理。也就是说，利用现有的手动搜网技术，由于终端设备无法区分锚点小区和非锚点小区，即使有5G网络覆盖的情况下，终端设备也无法依靠当前的手动搜网选择锚点小区驻留，进而使用5G网络，严重的影响了用户体验。
发明内容
本申请提供了一种非独立组网下确定锚点小区的方法和通信装置，可以使得终端设备区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
第一方面，提供了一种非独立组网下确定锚点小区的方法，该方法的执行主体既可以是终端设备也可以是应用于终端设备的芯片。该方法包括：接收指示信息，该指示信息用于指示解析系统信息块；根据该指示信息，解析该系统信息块；根据解析结果，确定是否有锚点小区，该锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
第一方面提供的非独立组网下确定锚点小区的方法，在NSA组网架构下，通过在搜网流程中对SIB进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
例如，本申请提供的非独立组网下确定锚点小区的方法可以应用在NSA组网架构下的选项3(Option 3)、选项3a(Option3a)、选项3x(Option 3x)的组网模式的场景中。
在本申请实施例中，锚点小区可以支持5G小区作为辅小区，从而可以实现5G网络和4G网络的双连接，非锚点小区仅仅支持4G网络，不支持NR小区作为辅小区。换句话说，锚点小区可以理解为支持添加NR小区作为辅小区的LTE小区。
在本申请实施例中，在终端设备启动手动搜网后，终端设备可以通过信令将“启动手动搜网”的信息发送给网络设备，例如，终端设备可以向网络设备发送手动搜5G网络请求，该手动搜5G网络请求携带用于指示终端启动手动搜网的指示信息。网络设备接收到该手动搜5G网络请求后，确定终端设备需要进行手动搜5G网络，网络设备便可以向终端设备发送指示信息。
在第一方面一种可能的实现方式中，该指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
其中，该搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，该RAT指示信息用于指示指定的RAT为NR或者LTE。
在第一方面一种可能的实现方式中，在终端设备本地存储了预设的CGI集合的情况下，根据该指示信息，解析该系统信息块，包括：
根据该指示信息，解析系统信息块SIB1；根据该SIB1，确定全球小区识别码CGI；
确定该CGI是否属于预设的CGI集合，该预设的CGI集合包括至少一个锚点小区的CGI；在该CGI属于该预设的CGI集合的情况下，确定该CGI标识的小区为锚点小区。
其中，预设的CGI集合包括的CGI可以理解为先验锚点小区的CGI，CGI用于标识小区。先验锚点小区可以理解为：之前为锚点小区的小区，即该小区之前为锚点小区，终端设备之前在该先验锚点小区上驻留过。
在第一方面一种可能的实现方式中，在终端设备本地存储了预设的CGI集合的情况下，根据该指示信息，解析该系统信息块，包括：
根据该指示信息，解析系统信息块SIB1；根据该SIB1，确定全球小区识别码CGI；
在CGI不属于该预设的CGI集合的情况下，解析系统信息块SIB2，该预设的CGI集合包括至少一个锚点小区的CGI；在该SIB2包括上层指示ULI的情况下，确定该 SIB2指示的小区为锚点小区。
在第一方面一种可能的实现方式中，在终端设备本地没有存储预设的CGI集合的情况下，根据该指示信息，解析该系统信息块，包括：
根据该指示信息，解析系统信息块SIB2；在该SIB2包括上层指示ULI的情况下，确定该SIB2指示的小区为锚点小区，其中，该预设的CGI集合包括至少一个锚点小区的CGI。
在第一方面一种可能的实现方式中，该方法还包括：在确定出一个锚点小区后，停止解析系统信息块。在该实现方式中，利用这个条件作为结束搜索锚点小区的标准，搜索速度快，用时短。
在第一方面一种可能的实现方式中，该方法还包括：在确定出一个满足小区驻留门限和S准则的锚点小区后，停止解析系统信息块。在该实现方式中，利用这个条件作为结束搜索锚点小区的标准，搜索速度较快，并且，搜索到的小区可以满足驻留条件，用户可以选择选择驻留该锚点小区上，搜索效率高。
在第一方面一种可能的实现方式中，该方法还包括：在将全频段上的所有小区对应的系统信息块解析完成后，停止解析系统信息块。在该实现方式中，利用这个条件作为结束搜索锚点小区的标准，搜索的较为全面。终端设备可能搜索到多个锚点小区，或者，可以搜索到多个满足小区驻留门限和S准则的锚点小区，或者，终端设备也可能搜索不到锚点小区。
在第一方面一种可能的实现方式中，该方法还包括：向用户显示该锚点小区的信息。
在第一方面一种可能的实现方式中，该方法还包括：将小区重新驻留在满足小区驻留门限和S准则的锚点小区上。
第二方面，提供了一种非独立组网下确定锚点小区的方法，该方法的执行主体既可以是网络设备也可以是应用于网络设备的芯片。该方法包括：网络设备生成指示信息，该指示信息用于指示解析系统信息块；网络设备向终端设备发送该指示信息；网络设备向终端设备发送系统信息块，该系统信息块用于终端设备确定是否有锚点小区，该锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
第二方面提供的非独立组网下确定锚点小区的方法，在NSA组网架构下，通过向终端设备发送指示信息以及系统信息块，使得终端设备可以在搜网流程中对系统信息块进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
在第二方面一种可能的实现方式中，该指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
其中，该搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，该RAT指示信息用于指示指定的RAT为NR或者LTE。
在第二方面一种可能的实现方式中，该系统信息块包括：系统信息块SIB1和系统信息块SIB2。
第三方面，提供了一种通信装置，该通信装置包括用于执行以上第一方面或者第一方面的任意一方面可能的实现方式中的各个步骤的单元。
第四方面，提供了一种通信装置，该通信装置包括用于执行以上第二方面或者第二方面的任意一方面可能的实现方式中的各个步骤的单元。
第五方面，提供了一种通信装置，该通信装置包括至少一个处理器和存储器，该至少一个处理器用于执行以上第一方面或者第一方面的任意一方面可能的实现方式中的方法。
第六方面，提供了一种通信装置，该通信装置包括至少一个处理器和存储器，该至少一个处理器用于执行以上第二方面或者第二方面的任意一方面可能的实现方式中的方法。
第七方面，提供了一种通信装置，该通信装置包括至少一个处理器和接口电路，该至少一个处理器用于执行以上第一方面或者第一方面中的任意一方面可能的实现方式中的方法。
第八方面，提供了一种通信装置，该通信装置包括至少一个处理器和接口电路，该至少一个处理器用于执行以上第二方面或者第二方面中的任意一方面可能的实现方式中的方法。
第九方面，提供了一种终端设备，该终端设备包括上述第三方面、第五方面或者第七方面提供的任一种通信装置。
第十方面，提供了一种网络设备，该网络设备包括上述第四方面、第六方面或者第八提供的任一种通信装置。
第十一方面，提供了一种计算机程序产品，该计算机程序产品包括计算机程序，该计算机程序在被处理器执行时，用于执行第一方面至第二方面中任意一方面中的方法，或者，用于执行第一方面至第二方面中任意一方面中的任意可能的实现方式中的方法。
第十二方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当该计算机程序被执行时，用于执行第一方面至第二方面中任意一方面中的方法，或者，用于执行第一方面至第二方面中任意一方面中的任意可能的实现方式中的方法。
第十三方面，提供了一种芯片，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的通信设备执行第一方面至第二方面中任意一方面中的方法，或者，用于执行第一方面至第二方面中任意一方面中的任意可能的实现方式中的方法。
本申请提供的非独立组网下确定锚点小区的方法，在NSA组网架构下，通过在终端设备在搜网过程中对SIB进行解析，通过解析SIB来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得终端设备可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
附图说明
图1是NSA组网架构下的选项3、选项3a、选项3x的具体组网模式的示意图。
图2是现有的多模终端设备的手动搜网流程的示意图。
图3是本申请实施例提供的一例用户进行手动搜网时用户进行操作时显示界面的示意性图。
图4是本申请实施例提供的一例用户启动5G网络的检测功能的显示界面的示意图。
图5是本申请提供的一例实现本申请提供的方法的终端设备的整体架构的示意图。
图6是本申请实施例提供的一例非独立组网下确定锚点小区的方法的示意性流程图。
图7是本申请实施例提供的另一例非独立组网下确定锚点小区的方法的示意性流程图。
图8是本申请实施例提供的又一例非独立组网下确定锚点小区的方法的示意性流程图。
图9是本申请实施例提供的又一例非独立组网下确定锚点小区的方法的示意性流程图。
图10是本申请实施例提供的另一例非独立组网下确定锚点小区的方法的示意性流程图。
图11是本申请实施例提供的另一例非独立组网下确定锚点小区的方法的示意性流程图。
图12是本申请实施例提供的另一例通信装置结构的示意性框图。
图13是本申请实施例提供的又一例通信装置结构的示意性框图。
图14是本申请实施例提供的另一例通信装置结构的示意性框图。
图15是本申请实施例提供的又一例通信装置结构的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
在本申请实施例的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“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，在本申请实施例的描述中，“多个”是指两个或多于两个。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本申请实施例的技术方案可以应用于LTE系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide  interoperability for microwave access，WiMAX)通信系统、以及5G系统或NR等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通讯(global system of mobile communication，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
本申请的提供的方法可以应用在NSA组网架构下，下面结合图1说明适用于本申请实施例的NSA组网架构。
如图1所示，图1所示的为NSA组网架构下的选项3(Option 3)、选项3a(Option3a)、选项3x(Option 3x)的具体组网模式。图1中的a图所示的为Option 3组网模式，5G基站的用户面数据和控制面数据均通过增强型的4G基站连接至4G核心网，即5G基站和4G核心网之间不直接进行数据信息以及控制信息的交互。图1中的b图所示的为Option 3a组网模式，5G基站的用户面数据直接连接4G核心网，控制面数据继续锚定于4G基站。即5G基站和4G核心网之间只进行用户面数据的交互。图1中的c图所示的为Option 3x组网模式，将5G基站的用户面数据分为两部分，一部分通过5G基站和4G核心网之间直接进行交互，另一部分通过4G基站与4G核心网之间进行交互。控制面数据继续锚定于4G基站。
在图1所示的组网架构下，用户使用多模终端设备进行手动搜网时，完全沿用了纯4G单模终端设备的手动搜网方案，即用户进行手动搜网时，选择驻留在LTE小区上，通过调制解调器(modem)指令:AT(Attention)+公共开放策略服务(common open policy service，COPS)触发用户进行搜网流程。
图2所示为现有的多模终端设备的手动搜网流程的示意图。如图2所示的，现有的多模终端设备的手动搜网流程主要包括步骤1至步骤8：
步骤1：终端设备驻留在LTE小区上，移动性管理控制模块(mobile management control,MMC)通过AT+COPS触发用户进行手动PLMN列表(PLMN LIST)搜网。
步骤2：多业务信用控制模块(multiple services credit control，MSCC)向MMC发送手动PLMN列表(PLMN LIST)搜网请求。
步骤3：MMC根据接收到的手动PLMN列表(PLMN LIST)搜网请求，启动手动PLMN列表搜网。
步骤4：MMC向LTE移动管理模块(LTE mobile manager，LMM)发送手动PLMN列表搜网请求，指定搜网类型为PLMN列表搜网。
步骤5：MMC等待LMM反馈的手动搜网结果。
步骤6：LMM利用背景搜网的方式进行PLMN列表搜网，并将手动搜网结果发送给MMC。
步骤7：MMC向MSCC发送PLMN列表搜网结果。
步骤8：MMC退出PLMN列表搜网。
其中，背景搜网(BackGround search)可以理解为终端设备在正常驻网的情况下且无业务状态下进行的一种搜索类型。单模终端设备可以理解为该终端设备支持一种无线接入技术(Radio Access Technology,RAT)，例如，LTE接入技术。多模终端设备可以理解为该终端设备支持多种无线接入技术，例如，支持LTE接入技术和NR接入技术。现有的手动搜网方案无法区分搜索到的小区为锚点小区还是非锚点小区，都按照4G处理，即都按照非锚点小区进行处理。用户无法知道当前驻留的小区为锚点小区还是非锚点小区，无法进行4G和5G网络的选择。
例如，图3所示的用户进行手动搜网时用户进行操作时显示界面的示意性图。如图3中的a所示，假设用户所在的区域中国电信存在5G网络覆盖，并且，用户的手机的信号栏的显示策略可以显示中国电信存在5G网络信号。用户点击屏幕上的“设置”菜单，显示的界面如图3中的b所示，用户点击“移动网络”菜单，显示的界面如图3中的c所示，用户点击“手动搜网”菜单，打开手动搜网，显示的如图3中的d所示，46010表示中国联通网络的PLMN编号。从图3中的d中可以看出，虽然用户驻留的区域存在中国电信5G网络信号覆盖，但是在手动搜网的结果显示中国电信仅仅为4G网络，用户无法选择驻留5G小区，无法使用5G网络。也就是说，在图3所示的场景中，利用图2所示的手动搜网方案，在无线接入技术(radio access technology,RAT)为LTE的情况下，即使实际上有锚点小区存在，用户无法区分搜索到的小区为锚点小区还是非锚点小区，均按照非锚点小区进行处理，用户无法驻留在锚点小区上使用5G网络。
图3所示的为一例用户的手机的信号栏的显示策略可以显示中国电信存在5G网络信号。另一种可能的情况为：用户所在的区域中国电信实际存在5G网络覆盖，但是用户的手机的信号栏的显示策略为不可以显示中国电信存在5G网络信号，即在图3中的信号显示栏中，中国电信显示的仍为4G信号。在这种情况下，用户可能询问运营商确定用户当前所在的区域是否存在5G网络，在确定存在5G网络后，用户进行手动搜网的结果仍然和图3中的d显示的一致。即使实际上有锚点小区存在，利用现有的手动搜网方案，用户也无法区分搜索到的小区为锚点小区还是非锚点小区，均按照非锚点小区进行处理。用户无法驻留在锚点小区上使用5G网络。
因此，利用现有的手动搜网方案，在用户驻留的小区内，即使有5G网络覆盖，由于终端设备将搜索到的小区均视为非锚点小区，用户在非锚点小区上只能使用4G网络。也就是说，在有5G网络覆盖的区域，锚点小区和非锚点小区混杂在一起，利 用现有的手动搜网方法，无法自检5G网络是够存在，无法区分锚点小区和非锚点小区，用户无法优先选择锚点进行驻留，无法使用5G网络，严重的影响了用户体验。
有鉴于此，本申请提供了一种非独立组网下确定锚点小区的方法，在NSA组网架构下，通过在搜网流程中对系统信息块(system information blocks，SIB)进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
在本申请实施例中，考虑到5G网络扫描的时间比较长，可以把传统手动搜网与5G网络的检测区分开，在终端设备的应用层上设置显示界面，在5G网络检测开关开启的情况下，该显示界面可以单独提示用户是否启动5G网络覆盖情况扫描，用户点击“确定”按钮，下发5G搜网指令，该终端设备启动5G网络的检测。例如，图4所示的为一例用于启动5G网络的检测功能的示意性操作图，如图4中的a所示的，用于点击“设置”菜单，显示的界面如图4中的b所示的，用户点击“5G开关”菜单，显示给用户的界面如图4中的c所示的，提醒用户是否启动5G网络覆盖情况监测，用户点击“确定”菜单，便开启了5G网络的检测功能。之后显示的界面如图4中的d所示的，用户可以点击“移动网络”菜单，进行手动搜5G网络，从而执行本申请提供的非独立组网下确定锚点小区的方法。
为了实现本申请提供的非独立组网下确定锚点小区的方法，需要对终端设备进行一些配置，在本申请实施例中，该终端设备为多模终端设备，具体的配置包括：
终端设备协议栈的物理层(physical，PHY)支持解析系统信息块2(system information blocks,SIB2)的全频段(fullband)搜网；
终端设备协议栈的无线资源控制(radio resource control,RRC)层支持发起NSA组网模式下的锚点小区的扫描，并将扫描结果上报给应用层；
非接入层(non-access stratum,NAS)与接入层新增接口，用于实现指定的RAT(例如为LTE或者NR)，进一步的，该接口还可以用于实现指示指定的RAT优先频带(prefband)列表搜索功能，并提供对应AT接口，用以执行锚点小区的手动搜网；
无线接口层(radio interface layer，RIL)新增一个5G网络扫描接口供上层应用调用；
上层应用调用5G网络扫描接口，并将扫描结果(锚点小区或者非锚点小区)显示给用户；
终端设备扫描到可用的5G小区(5G网络)，可自动发起锚点小区的注册、驻留等。
图5所示的为实现本申请实施例提供的方法的终端设备的整体架构的示意图。如图5所示的：用户点击终端设备应用层上的显示界面，例如如图4所示的，启动5G网络搜索，通过终端设备的应用程序框架层(framework)传输至无线接口层RIL，利用无线接口层的5G网络扫描接口传输，通过NAS信令传输至核心网侧，NAS通过新无线资源控制(NR radio resource control,NRRC)向新无线物理层(NR physical,NPHY)发送指令用于确定锚点小区，并通过LTE无线资源控制(LTE radio resource control, LRRC)向LTE物理层(LTE physical,LPHY)发送指令用于确定锚点小区。LPHY和NPHY确定检测结果后将检测结果分别上报给LRRC和NRRC，通过NAS信令传输给终端设备的RIL层，通过RIL层的5G网络扫描接口传输给应用层，最终在应用层将扫描结果显示给用户。
其中，应用程序框架层为应用程序层的应用程序提供应用编程接口(application programming interface，API)和编程框架。应用程序框架层可以包括一些预先定义的函数，例如用于接收应用程序框架层所发送的事件的函数。可选的，应用程序框架层可以包括窗口管理器、资源管理器、通知管理器、视图系统等。
图6是本申请一个实施例的非独立组网下确定锚点小区的方法100的示意流程图。该方法可以应用例如图1所示的非独立组网的场景中。应该理解，本申请提供的方法还可以应用在其他非独立组网的系统中，本申请实施例在此不作限制。
下文的描述中，以终端设备和网络设备为执行主体说明书本申请提供的方法。作为示例而非限定，执行方法的执行主体也可以是应用于终端设备和网络设备中的芯片。
如图6所示，图6中示出的方法100可以包括S110至S140。下面结合图6详细说明方法100中的各个步骤。
S110，网络设备向终端设备发送指示信息，该指示信息用于指示解析系统信息块。相应的，该终端设备接收该指示信息。
S120，网络设备向终端设备发送系统信息块，相应的，终端设备接收该系统信息块。
S130，终端设备根据该指示信息，解析该系统信息块。
S140，终端设备根据解析结果，确定是否有锚点小区，该锚点小区为支持NR接入技术和LTE接入技术的双连接小区。
在S110中，在终端设备启动手动搜网后，终端设备可以通过信令将“启动手动搜网”的信息发送给网络设备，用于向网络设备通知该终端设备进行(或者启动)手动搜5G网络。例如，终端设备可以向网络设备发送手动搜5G网络请求，该手动搜5G网络请求携带用于指示终端启动手动搜网的指示信息。网络设备接收到该手动搜5G网络请求后，确定终端设备需要进行手动搜5G网络，网络设备便可以向终端设备发送指示信息，该指示信息用于指示终端设备在搜网时解析SIB。换句话说，在本申请实施例中，该指示信息可以用于指示终端设备在手动搜网时需要区分锚点小区和非锚点小区。例如，该指示信息可以具体用于指示终端设备在搜网时解析SIB1和SIB2。
可选的，在本申请实施例中，该手动搜5G网络请求指定的搜网类型可以为PLMN列表(PLMN LIST)搜网。
可选的，在本申请实施例中，该终端设备可以为多模终端设备，为该终端设备提供网络的网络运营商已经部署了5G网络，终端设备可以利用4G网络和5G网络。
在终端设备接收该指示信息后，便可以确定需要解析SIB。在S120中，网络设备可以向终端设备发送SIB。具体的，网络设备可以向终端设备发送SIB1和SIB2。相应的，终端设备接收该网络设备发送的SIB1和SIB2。
在S130和S140中，终端设备接收到该SIB后，便可以解析该SIB。例如，终端设备可以解析SIB1，或者，解析SIB1和SIB 2。从而确定终端设备当前驻留的小区是 否为锚点小区，或者确定当前环境中存在的小区是否有锚点小区，进而使得终端设备区分锚点小区和非锚点小区。
本申请提供的非独立组网下确定锚点小区的方法，在NSA组网架构下，通过在终端设备在搜网过程中对SIB进行解析，通过解析SIB来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得终端设备可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
可选的，在本申请实施例中，作为一种可能的实现方式，该指示信息包括：搜网类型指示信息和RAT指示信息中的至少一种。
其中，搜网类型(SRCH TEYP)指示信息用于指示终端设备解析系统信息块中的PLMN列表，在本申请实施例中，终端设备解析PLMN列表意味着终端设备搜网时需要解析SIB，即需要区分锚点小区和非锚点小区。RAT指示信息指示指定的RAT为NR或者LTE。指定的RAT为NR或者LTE意味着终端设备搜网时也需要解析SIB，即需要区分锚点小区和非锚点小区。
应理解，在本申请实施例中，对于指示信息包括的具体内容以及指示信息的形式不做限制，只要该指示信息用于指示终端设备搜网时解析SIB(包括SIB1和SIB2)，从而区分锚点小区和非锚点小区即可。例如，该指示信息还可以携带其他内容用于指示终端设备搜网时解析SIB。本申请实施例在此不作限制。
可选的，在本申请实施例中，终端设备在解析SIB进行搜网的过程中，可以使用背景搜网(或者也可以称为背景搜)的方式搜索(解析)SIB。例如，终端设备利用背景搜网的形式解析SIB1，或者，解析SIB1和SIB2。换句话说，终端设便可以使用背景搜网的方式解析SIB，从而区分锚点小区和非锚点小区。
可选的，在本申请一些可能的实现方式中，在以图7为例，在图6所示的方法步骤的基础上，该方法100中的S130具体可以包括：S131至S133，S140具体可以包括：S141：
S131，终端设备根据该指示信息，解析系统信息块SIB1。
S132，终端设备根据该SIB1，确定全球小区标识码(cell global identifier，CGI)。
S133，终端设备确定CGI是否属于预设的CGI集合，该预设的CGI集合包括至少一个锚点小区的CGI。
S141，在该CGI属于该预设的CGI集合的情况下，终端设备确定该CGI标识的小区为锚点小区。
图7中所示的S110和S120的描述可以参考上述的图6中对这几个步骤的描述，为了简洁，这里不再赘述。
在S131中，在终端设备本地存储了预设的CGI集合的情况下，终端设备接收到SIB1后，先对SIB1进行解析。预设的CGI集合包括至少一个锚点小区的CGI，预设的CGI集合包括的CGI可以理解为先验锚点小区的CGI，CGI用于标识小区。先验锚点小区可以理解为：之前为锚点小区的小区，即该小区之前为锚点小区，终端设备之前在该先验锚点小区上驻留过。
在S132中，终端设备可以确定SIB1包括的CGI。在S133中，终端设备确定SIB1中CGI是否与先验锚点小区的CGI相同，即确定SIB1中CGI是否属于预设的CGI集合。
在S141中，如果SIB1中的CGI属于预设的CGI集合，即SIB1中的CGI与预设CGI集合中的某个CGI相同，则证明SIB1中CGI标识的小区为锚点小区，该小区可以添加辅小区组(secondary cell group，SCG)双链接。SIB1中CGI标识的小区即为终端设备当前驻留的小区，即服务小区。在这种情况下，终端设备不需要在解析该小区对应的SIB2。
如果SIB1中CGI不属于预设的CGI集合，即利用SIB1中CGI不能确定该小区是否为锚点小区。在这种情况下，一种可能的实现方式为：直接确定该CGI标识的小区不是锚点小区。因此，需要继续搜索别的小区是否为锚点小区。例如，终端设备继续解析其他小区对应的SIB1中CGI，例如和S133类似的方法确定其他小区是否为锚点小区。
可选的，在本申请一些可能的实现方式中，在终端设备本地存储了预设的CGI集合的情况下，在以图8为例，在图6所示的方法步骤的基础上，该方法100中的S130具体可以包括：S131至S134。S140具体可以包括：S142。
S131，终端设备根据该指示信息，解析SIB1。
S132，终端设备根据该SIB1，确定CGI。
S133，终端设备CGI是否属于预设的CGI集合，该预设的CGI集合包括至少一个锚点小区的CGI。
S134，在该CGI不属于预设的CGI集合的情况下，终端设备块SIB2。
S142,在该SIB2包括上层指示(upper layer Indication，ULI)的情况下，终端设备确定该SIB2指示的小区为锚点小区。
图8中所示的S110和至S120的描述可以参考上述的图6中对这几个步骤的描述，为了简洁，这里不再赘述。
其中，S131至S133可以参考图7中对这几个步骤的描述，这里不再赘述，在S134中，在CGI不属于该预设的CGI集合的情况下，证明SIB1中的CGI标识的小区不是先验锚点小区，利用SIB1中CGI不能确定该小区是否为锚点小区。在这种情况下，作为另一种可能的实现方式，终端设备可以继续解析SIB2，利用解析SIB2的结果确定SIB2指示的小区是否为锚点小区，在本申请实施例中，SIB2指示的小区和SIB1中的CGI标识的小区为同一个小区，该小区为终端设备当前驻留的小区，即服务小区。在S142中，终端设备根据对接收到的SIB2的解析结果，确定SIB2中是否包括ULI。如果SIB2中配置了ULI，则证明SIB2指示的小区为锚点小区。
如果SIB2中没有配置ULI，则可以证明终端设备当前驻留的小区不是锚点小区。在这种情况下，终端设备需要继续进行背景搜网的过程，即继续搜索另外的小区对应的SIB1，或者，继续搜索另外的小区对应的SIB1和SIB2，直到搜索到锚点小区。
可选的，在本申请另一些可能的实现方式中，在终端设备本地没有存储预设的CGI集合的情况下，在以图9为例，在图6所示的方法步骤的基础上，该方法100中的S130具体可以包括：S135。S140具体可以包括：S142。
S135，根据该指示信息，解析系统信息块SIB2。
S142，在该SIB2包括上层指示ULI的情况下，确定该SIB2指示的小区为锚点小区，其中，该预设的CGI集合包括至少一个锚点小区的CGI。
图9中所示的S110和S120的描述可以参考上述的图6中对这几个步骤的描述，为了简洁，这里不再赘述。
如果终端设备本地没有存储预设的CGI集合，则终端设备可以不用解析SIB1。具体的，终端设备可以不用解析SIB1中的CGI，而是在接收到SIB2后，直接解析SIB2，在S142中，终端设备根据对SIB2的解析结果，确定SIB2中是否包括ULI。如果SIB2中配置了ULI，则证明SIB2指示的小区为锚点小区。
如果SIB2中没有配置ULI，则证明终端设备当前驻留的小区不是锚点小区。在这种情况下，终端设备需要继续进行背景搜网的过程，即继续搜索另外的小区对应的SIB1，或者，继续搜索另外的小区对应的SIB1和SIB2，直到搜索到锚点小区。
换句话说，在本申请实施例中，终端设备可以利用如下三种搜网方式中的任意一种方式背景搜锚点小区：
第一种方式：在终端设备本地存储了预设的CGI集合的情况下，终端设备利用如图7所示的搜网流程(即只解析SIB1)进行背景搜锚点小区，确定终端设备当前驻留的小区是否为锚点小区。
第二种方式：在终端设备本地存储了预设的CGI集合的情况下，利用如图8所示的搜网流程(解析SIB1和SIB2)进行背景搜锚点小区，确定终端设备当前驻留的小区是否为锚点小区。
第三种方式：在终端设备本地没有存储预设的CGI集合的情况下，利用如图9所示的搜网流程(只解析SIB2，不解析SIB1中的CGI)背景搜锚点小区，确定终端设备当前驻留的小区是否为锚点小区。
应该理解，上述的三种不同的方式针对的是同一个小区的搜索锚点小区的流程。对于任意一个小区，终端设备可以利用上述三种方式中的任意一种进行搜索锚点小区。
可选的，在本申请实施例中，在利用上述三种方式中的任意一种搜网流程进行搜网时，在满足如下第一个至第三个条件中的任意一个条件时，搜网过程结束：
第一个条件：在确定出一个锚点小区后，停止解析SIB，即停止进行搜网。
例如，SIB1中CGI与先验锚点小区的CGI相同，则确定SIB1中CGI标识的小区的为锚点小区，停止背景搜网流程。例如，停止解析该小区对应的SIB2以及停止解析其他小区对应的SIB(包括SIB1和SIB2)。
或者，SIB1中CGI与先验锚点小区的CGI不相同，但是SIB2中包括ULI，则确定终端设备当前驻留的小区是锚点小区，停止背景搜网流程。例如，停止解析其他小区对应的SIB(包括SIB1和SIB2)。
或者，在终端设备本地没有存储预设的CGI集合的情况下，但是SIB2中包括ULI，则确定终端设备当前驻留的小区是锚点小区，停止背景搜网流程。例如，停止解析其他小区对应的SIB(包括SIB1和SIB2)。
第二个条件：在确定出一个满足小区驻留门限和S准则的锚点小区后，停止解析SIB，即停止进行搜网。其中，S准则用于确定某一个小区是否可以为终端设备驻留的 小区，换句话说，S准则可以用于确定终端设备是否可以从一个小区切换到另外一个小区。在本申请实施例中，如果搜索到的某个锚点小区满足小区驻留门限和S准则，则终端设备可以选择驻留在该小区上。
例如，SIB1中CGI与先验锚点小区的CGI相同，如果SIB1中CGI标识的小满足小区驻留门限和S准则，则停止解析该小区对应的SIB2以及停止解析其他小区对应的SIB(包括SIB1和SIB2)。如果SIB1中CGI标识的小区不满足小区驻留门限和S准则中至少一个，则证明虽然CGI标识的小区为锚点小区，但是用户不能驻留在该锚点小区上，在这种情况下，终端设备需要可以利用上述的三种方式中的任意一种解析其他小区对应的SIB1，或者SIB1和SIB2。如果确定某一个锚点小区满足小区驻留门限和S准则，则停止背景搜网流程，例如，停止解析另外的小区对应的SIB(包括SIB1和SIB2)。
或者：如果SIB1中CGI与先验锚点小区CGI不相同，或者，终端设备本地没有存储预设的CGI集合，如果SIB2中包括ULI，则确定SIB2指示的锚点小区是否满足小区驻留门限和S准则。如果SIB2指示的锚点小区满足小区驻留门限和S准则，则停止解析其他小区对应的SIB(包括SIB1和SIB2)。如果SIB2指示的锚点小区不满足小区驻留门限和S准则中的至少一个，则继续搜索另外的小区对应的SIB(包括SIB1和SIB2)。终端设备可以利用上述的三种搜网方式中的任意一种继续搜索满足小区驻留门限和S准则的锚点小区，直到搜索到一个满足小区驻留门限和S准则锚点小区后，停止解析SIB。
可选地，在本申请实施例中，Srxlen值大于零，并且Squal值大于零时表示满足S准则，其中：
Srxlen＝Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)–Pcompensation；
Squal＝Qqualmeas–(Qqualmin+Qqualminoffset)。
其中，Qrxlevmeas表示检测到的小区的参考信号接收功率(reference signal receiving power，RSRP)，Qrxlevmin为小区的最低接受电平，一般为-128dbm；Qrxlevminoffset表示最低接受电平的偏置，一般设置为0；Pcompensation＝max(Pmax-Pumax，0)，Pmax表示终端设备在当前服务小区中允许的最大发射功率；Pumax表示终端设备的最大上行发射功率；Qqualmeas指检测到的参考信号接收质量(reference signal receiving quality，RSRQ)；Qqualmin指最低接受的参考信号质量，一般设为-18，Qqualminoffset指最低参考信号接收质量偏置，一般也是设置为0。Srxlen值大于零，并且Squal值大于零时表示满足S准则。
可选的，在本申请实施例中，小区驻留门限可以为预先配置的，或者为协议预定义的。
第三个条件：将全频段(full band)上的所有小区对应的系统信息块解析完成后，停止解析SIB。
对于第三个条件，终端设备需要在全频段上进行锚点小区的搜索，即对于全频段上的每个小区，均利用上述的三种搜网方式中的任意一种继续搜索锚点小区，每个小区都需要解析SIB1，或者解析SIB1和SIB2，或者解析SIB2，从而确定搜索到的小区是否为锚点小区。在这种情况下，终端设备可能搜索到多个锚点小区，或者，可以搜 索到多个满足小区驻留门限和S准则的锚点小区，或者，终端设备也可能搜索不到锚点小区。
在本申请实施例中，利用第一个条件判断是否结束锚点小区的搜索，搜索速度快，用时短，但是，可能搜索到的小区不满足驻留条件，用户无法选择驻留在该锚点小区上。利用第二个条件判断是否结束锚点小区的搜索，搜索速度较快，并且，搜索到的小区可以满足驻留条件，用户可以选择选择驻留该锚点小区上。利用第三个条件判断是否结束锚点小区的搜索，搜索的较为全面，但是速度较慢，需要的时间比较长。
还应理解，在本申请实施例中，如果利用第一个条件或者第二个条件作为结束锚点小区的搜索的条件，相比较于利用第三个条件作为结束锚点小区的搜索的条件，会提前结束锚点小区的搜索过程。如果一直没有满足第一个条件或者第二个条件的锚点小区，则需要等到整个fullBand搜索都结束，才可以确定是否有锚点小区的存在。
可选的，在本申请实施例中，在终端设备结束锚点小区的搜索后，终端设备可以将搜索到的锚点小区的信息显示给用户。例如，终端设备可以向用户显示是否有锚点小区的存在。
可选的，在本申请实施例中，在搜索到锚点小区，或者搜索到满足小区驻留门限和S准则的锚点小区后，用户可以将终端设备从当前驻留的小区重新驻留在锚点小区或者满足小区驻留门限和S准则的锚点上。例如，终端设备可以利用小区重选流程，重选到锚点小区上。如果搜索到多个锚点小区，或者，搜索到多个满足小区驻留门限和S准则的锚点小区，则终端设备可以在其中选择信号最好的锚点小区进行驻留。
下面结合具体的例子说明本申请实施例提供的非独立组网下确定锚点小区的方法。
图10所示的为本申请提供的一例非独立组网下确定锚点小区的方法200的示意性流程图，如图10所示的，该方法200包括：S201至S214。
S201，用户通过终端设备的界面，利用新增的AT接口下发AT命令，触发手动搜5G的流程。例如，用户可以点击如图4中的d所示的“移动网络”，触发手动搜5G的流程。
S202，MSCC模块向MMC发送手动搜5G网络的请求，该请求指定的搜网类型为PLMN列表(PLMN LIST)搜网请求。
S203，MMC模块接收到该手动搜5G网络的请求后，向注册管理模块(register manager，REGM)发送进入搜网状态的通知。
S204，REGM向MMC回复进入搜网状态成功。
S205，MMC向LMM发送手动搜5G网络的请求，该请求指定搜网类型为PLMN列表(PLMN LIST)搜索，并且，该请求携带指定的RAT为LTE，可选的，该指定的RAT为也可以为NR。
S206，LMM向LRRC下发手动搜5G网络的请求，该请求指定搜网类型为PLMN列表(PLMN LIST)搜索，并且，该请求携带指定的RAT为LTE。可选的，该指定的RAT为也可以为NR。
S207，LRRC向LHPY下发开始背景搜LTE的请求，并且指定为解析SIB2类型的背景搜。
S208，LHPY向LRRC回复开始背景搜SIB2确认信息。
S209，LHPY背景搜索SIB2成功后，如果解析到SIB2中配置了ULI，其中ULI用于指示当前小区为锚点小区，则识别当前小区为锚点小区。当前小区可以理解为终端设备当前设备驻留的小区，终端设备当前设备驻留的小区也可以称为服务小区。如果SIB2中没有配置ULI，则认为当前小区为非锚点小区。如果当前小区是锚点小区，则需要进一步判断该锚点小区是否满足驻留条件(例如，是否满足小区驻留门限和S准则)。
S210，在该锚点小区满足驻留条件(例如，满足小区驻留门限和S准则)的情况下，LHPY向LRRC回复手动搜5G网络成功的确认信息(confirm)，该信息携带锚点小区的信息。
S211，LRRC向LMM上报手动搜5G网络成功的确认信息。
S212，LMM向MMC上报手动搜5G网络成功的确认信息。
S213,MMC向MSCC上报手动搜5G网络成功的确认信息。
S214,MSCC将手动搜5G网络成功的结果上报给应用层，应用层将搜网结果显示给用户。例如，该搜网结果包括：是否存在锚点小区。
图10所示的流程包括NAS流程和接入层(access stratum,AS)流程。图11所示的为图10所示的流程中的AS流程的具体流程(方法)的示意图，具体的，为LRRC和LHPY之间交互的具体流程，如图11所示的，该方法300具体包括：S301至S314。
S301，LTE非接入层(LTE Non-access stratum,LNAS)向LRRC发送手动搜5G网络的请求，该请求指定的RAT为LTE，并携带搜网类型为解析SIB2的PLMN列表(PLMN LIST)搜网。其中，S301相当于图10所示的流程中的S206。
S302，LRRC向LPHY发送开始背景搜SIB2的请求，S302相当于图10所示的流程中的S207。
S303，LPHY向LRRC回复开始SIB2的背景搜的确认信息，S303相当于图10所示的流程中的S208。
S304，小区选择(cell selection，CSEL)模块向LPHY发送小区(cell)搜索请求。
S305，LPHY向CSEL发送小区(cell)搜索确认信息。
S306，CSEL向LPHY发送获取系统信息块的请求。
S307,LPHY获取物理广播信道(physical broadcast channel，PBCH)，该PBCH用于接收主系统信息块(master information block,MIB)，并且，LPHY根据PBCH获取物理下行共享信道(physical downlink shared channel，PDSCH)，该PDSCH用于接收SIB。
S308,LPHY接收并解析SIB，判断是否存在锚点小区。
S309，背景搜锚点小区结束后，LPHY向CSEL发送背景搜结束请求。
S310，CSEL向小区选择流程控制(cell selection process control，CSELPC)模块发送背景搜结束请求。
S311，CSELPC向小区选择背景搜(cell selction background，CSELBG)模块发送背景搜结束请求。
S312,CSELBG向LPHY发送背景搜结束请求。
S313,LPHY向CSELBG发送背景搜结束确认信确认信息。
S314，CSELBG向LNAS发送搜索到的锚点小区的信息。在LNAS接收到该锚点小区的信息后，LNAS可以应用层上报手动搜5G网络成功的确认信息，应用层将锚点小区的搜索结果展示给用户。
其中，在S308中，物理层背景搜锚点小区的过程中，可以先解析SIB1，根据SIB1中的CGI来判断是否是锚点小区。具体的，确定SIB1中CGI是否与先验锚点小区的CGI相同。如果SIB1中的CGI与先验小区的CGI相同，则SIB1中CGI标识的小区为锚点小区。
如果本地无先验锚点小区，或者，SIB1中CGI与先验锚点小区的CGI不相同，则可以继续解析SIB2，根据SIB2中是否存在ULI来判定是否为锚点小区。在搜索到锚点小区并记录锚点小区的信息后，向LNAS发送锚点小区的信息。如果没有搜索到锚点小区，或者搜索到的锚点小区不满足驻留门限和S准则，则继续执行小区搜索流程，即继续解析下一个小区对应的SIB1和SIB2。
在满足如下三个条件中的任意一个条件的情况下，背景搜锚点小区结束：
第一个条件：搜索到一个锚点小区则结束。
第二个条件：搜索到一个满足驻留门限和S准则的锚点小区则结束。
第三个条件：全频带(full band)搜索，将全频段上的所有小区搜索完后则结束。
对于每一个小区，确定该小区是否为锚点小区的过程，均可以利用S308所示的方式来确定该小区是否为锚点小区。
背景搜锚点小区结束后，终端设备可以将手动搜锚点的搜索情况在应用层显示给用户，告知用户是否有5G网络覆盖。
在搜索到满足驻留门限和S准则的锚点小区后，或者，在搜素到的锚点小区中确定满足驻留门限和S准则的锚点小区后，可以触发用户进行小区重选流程，使得用户驻留在锚点小区上，用户就可以使用5G网络，提高通信质量和用户体验。
本申请提供的非独立组网下确定锚点小区的方法，在NSA组网架构下，通过在搜网流程中对SIB进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
应理解，上述只是为了帮助本领域技术人员更好地理解本申请实施例，而非要限制本申请实施例的范围。本领域技术人员根据所给出的上述示例，显然可以进行各种等价的修改或变化，例如，上述方法100至方法300中的各个实施例中某些步骤可以是不必须的，或者可以新加入某些步骤等。或者上述任意两种或者任意多种实施例的组合。这样的修改、变化或者组合后的方案也落入本申请实施例的范围内。
还应理解，上文对本申请实施例的描述着重于强调各个实施例之间的不同之处，未提到的相同或相似之处可以互相参考，为了简洁，这里不再赘述。
还应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
还应理解，本申请实施例中，“预先设定”、“预先定义”可以通过在设备(例如，包括终端和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。
还应理解，本申请实施例中的方式、情况、类别以及实施例的划分仅是为了描述的方便，不应构成特别的限定，各种方式、类别、情况以及实施例中的特征在不矛盾的情况下可以相结合。
还应理解，在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
以上结合图1至图11对本申请实施例的非独立组网下确定锚点小区的方法做了详细说明。以下，结合图12至图15对本申请实施例通信装置进行详细说明。
图12示出了本申请实施例的通信装置400的示意性框图，该通信装置400可以对应上述方法100至方法300中描述的终端设备，也可以是应用于终端设备的芯片或组件，并且，该通信装置400的各模块或单元分别用于执行上述方法100至方法300中各个实施例方式中的终端设备所执行的各动作或处理过程，如图12所示，该通信装置400可以包括：通信单元410和处理单元420。
通信单元410：接收指示信息，该指示信息用于指示解析系统信息块；
处理单元420，用于根据该指示信息，解析该系统信息块；
该处理单元420，还用于根据解析结果，确定是否有锚点小区，该锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
本申请提供的通信装置，在NSA组网架构下，通过在搜网流程中对SIB进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
可选的，在本申请的一些实施例中，该指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
其中，该搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，该RAT指示信息用于指示指定的RAT为NR或者LTE。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
根据该指示信息，解析系统信息块SIB1；
根据该SIB1，确定全球小区识别码CGI；
确定该CGI是否属于预设的CGI集合，该预设的CGI集合包括至少一个锚点小区的CGI；
在该CGI属于该预设的CGI集合的情况下，确定该CGI标识的小区为锚点小区。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
根据该指示信息，解析系统信息块SIB1；
根据该SIB1，确定全球小区识别码CGI；
在CGI不属于该预设的CGI集合的情况下，解析系统信息块SIB2，该预设的CGI 集合包括至少一个锚点小区的CGI；
在该SIB2包括上层指示ULI的情况下，确定该SIB2指示的小区为锚点小区。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
根据该指示信息，解析系统信息块SIB2；
在该SIB2包括上层指示ULI的情况下，确定该SIB2指示的小区为锚点小区，其中，该预设的CGI集合包括至少一个锚点小区的CGI。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
在确定出一个锚点小区后，停止解析系统信息块。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
在确定出一个满足小区驻留门限和S准则的锚点小区后，停止解析系统信息块。
可选的，在本申请的一些实施例中，该处理单元420，还用于：
在将全频段上的所有小区对应的系统信息块解析完成后，停止解析系统信息块
可选的，在本申请的一些实施例中，该处理单元420，还用于：向用户显示该锚点小区的信息。
可选的，在本申请的一些实施例中，该处理单元420，还用于：将小区重新驻留在满足小区驻留门限和S准则的锚点小区上。
应理解，通信装置400中各单元执行上述相应步骤的具体过程请参照前文中结合图4、图6至图11、以及方法100至方法300中的相关实施例的终端设备执行步骤的相关描述。为了简洁，这里不加赘述。
可选的，通信单元410可以包括接收单元(模块)和发送单元(模块)，用于执行前述各个方法实施例中终端设备接收信息和发送信息的步骤。可选的，通信装置400还可以包括存储单元，用于存储处理单元420和通信单元410执行的指令。处理单元420、通信单元410和存储单元通信连接，存储单元存储指令，处理单元420用于执行存储单元存储的指令，通信单元410用于在处理单元420的驱动下执行具体的信号收发。
应理解，通信单元410可以是收发器、输入/输出接口或接口电路等。存储单元可以是存储器。处理单元420可由处理器实现。如图13所示，通信装置500可以包括处理器510、存储器520和收发器530。
图12所示的通信装置400或图13所示的通信装置500能够实现前述方法100至方法300的各个实施例、以及图6至图11所示的相关实施例的终端设备执行的步骤。类似的描述可以参考前述对应的方法中的描述。为避免重复，这里不再赘述。
还应理解，图12所示的通信装置400或图13所示的通信装置500可以为终端设备，或者，终端设备可以包括图12所示的通信装置400或图13所示的通信装置500。
图14示出了本申请实施例的通信装置600的示意性框图，该通信装置600可以对应上述方法100中描述的网络设备，也可以是应用于网络设备的芯片或组件，并且，该通信装置600的各模块或单元分别用于执行上述方法中的各个实施例方式中的网络设备所执行的各动作或处理过程，如图14所示，该通信装置600可以包括：处理单元610和通信单元620。
处理单元610，用于生成指示信息，该指示信息用于指示终端设备解析系统信息 块；
通信单元620，用于发送该指示信息；
该通信单元620，还用于发送该系统信息块，该系统信息块用该终端设备确定是否有锚点小区，该锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
本申请提供的通信装置，在NSA组网架构下，通过向终端设备发送指示信息以及系统信息块，使得终端设备可以在搜网流程中对系统信息块进行解析，通过解析系统信息块来区分搜索到的小区为锚点小区还是非锚点小区，来确定周边是否有锚点小区的存在的，从而使得用户可以区分锚点小区和非锚点小区。实现了终端设备可以自行检测周围是否有5G网络的覆盖，进而可以在有5G网络覆盖的情况下优先选择驻留在锚点小区使用5G网络，提高通信质量和用户体验。
可选的，在本申请的一些实施例中，该指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
其中，该搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，该RAT指示信息用于指示指定的RAT为NR或者LTE。
可选的，在本申请的一些实施例中，该系统信息块包括：系统信息块SIB1和系统信息块SIB2。
应理解，通信装置600中各单元执行上述相应步骤的具体过程请参照前文中结合图4、图6至图9、以及方法100中的相关实施例的网络设备执行步骤的相关描述。为了简洁，这里不加赘述。
可选的，通信单元620可以包括接收单元(模块)和发送单元(模块)，用于执行前述各个方法实施例中网络设备接收信息和发送信息的步骤。可选的，通信装置600还可以包括存储单元，用于存储处理单元610和通信单元620执行的指令。处理单元610、通信单元620和存储单元通信连接，存储单元存储指令，处理单元610用于执行存储单元存储的指令，通信单元620用于在处理单元610的驱动下执行具体的信号收发。
应理解，通信单元620可以是收发器、输入/输出接口或接口电路等。存储单元可以是存储器。处理单元610可由处理器实现。如图15所示，通信装置700可以包括处理器710、存储器720和收发器730。
图14所示的通信装置600或图15所示的通信装置700能够实现前述方法100中的各个实施例、以及图6至图9所示的相关实施例的网络设备执行的步骤。类似的描述可以参考前述对应的方法中的描述。为避免重复，这里不再赘述。
还应理解，图14所示的通信装置600或图15所示的通信装置700可以为网络设备，或者，网络设备可以包括图14所示的通信装置600或图15所示的通信装置700。
还应理解，以上装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以 以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。这里该处理元件又可以称为处理器，可以是一种具有信号处理能力的集成电路。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个专用集成电路(application specific integrated circuit，ASIC)，或，一个或多个数字信号处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
本申请实施例还提供了一种通信系统，该通信系统包括：上述本申请实施例提供的终端设备和网络设备。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序代码，该计算机程序包括用于执行上述本申请实施例提供的任意一种非独立组网下确定锚点小区的方法的指令。该可读介质可以是只读存储器(read-only memory,ROM)或随机存取存储器(random access memory,RAM)，本申请实施例对此不做限制。
本申请还提供了一种计算机程序产品，该计算机程序产品包括指令，当该指令被执行时，以使得终端设备、网络设备对应于上述方法中的对应的操作。
本申请实施例还提供了一种位于通信装置中的芯片，该芯片包括：处理单元和通信单元，该处理单元，例如可以是处理器，该通信单元例如可以是输入/输出接口、管脚或电路等。该处理单元可执行计算机指令，以使所述通信装置执行上述本申请实施例提供的任一种非独立组网下确定锚点小区的方法。
可选地，该计算机指令被存储在存储单元中。
可选地，该存储单元为该芯片内的存储单元，如寄存器、缓存等，该存储单元还可以是该终端内的位于该芯片外部的存储单元，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。其中，上述任一处提到的处理器，可以是一个CPU，微处理器，ASIC，或一个或多个用于控制上述的反馈信息的传输方法的程序执行的集成电路。该处理单元和该存储单元可以解耦，分别设置在不同的物理设备上，通过有线或者无线的方式连接来实现该处理单元和该存储单元的各自的功能，以支持该系统芯片实现上述实施例中的各种功能。或者，该处理单元和该存储器也可以耦合在同一个设备上。
其中，本实施例提供的通信装置、计算机可读存储介质、计算机程序产品或芯片均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是ROM、可编程只 读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是RAM，其用作外部高速缓存。RAM有多种不同的类型，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请中可能出现的对各种消息/信息/设备/网元/系统/装置/动作/操作/流程/概念等各类客体进行了赋名，可以理解的是，这些具体的名称并不构成对相关客体的限定，所赋名称可随着场景，语境或者使用习惯等因素而变更，对本申请中技术术语的技术含义的理解，应主要从其在技术方案中所体现/执行的功能和技术效果来确定。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请的实施例中的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些 接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个可读存储介质中，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。而前述的可读存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (29)

  1. 一种非独立组网下确定锚点小区的方法，其特征在于，包括：
    终端设备接收指示信息，所述指示信息用于指示解析系统信息块；
    所述终端设备根据所述指示信息，解析所述系统信息块；
    所述终端设备根据解析结果，确定是否有锚点小区，所述锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
  2. 根据权利要求1所述的方法，其特征在于，所述指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
    其中，所述搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，所述RAT指示信息用于指示指定的RAT为NR或者LTE。
  3. 根据权利要求1或2所述的方法，其特征在于，所述终端设备根据所述指示信息，解析所述系统信息块，包括：
    所述终端设备根据所述指示信息，解析系统信息块SIB1；
    所述终端设备根据所述SIB1，确定全球小区识别码CGI；
    所述终端设备确定所述CGI是否属于预设的CGI集合，所述预设的CGI集合包括至少一个锚点小区的CGI；
    在所述CGI属于所述预设的CGI集合的情况下，所述终端设备确定所述CGI标识的小区为锚点小区。
  4. 根据权利要求1或2所述的方法，其特征在于，所述终端设备根据所述指示信息，解析所述系统信息块，包括：
    所述终端设备根据所述指示信息，解析系统信息块SIB1；
    所述终端设备根据所述SIB1，确定全球小区识别码CGI；
    在所述CGI不属于预设的CGI集合的情况下，所述终端设备解析系统信息块SIB2，所述预设的CGI集合包括至少一个锚点小区的CGI；
    在所述SIB2包括上层指示ULI的情况下，所述终端设备确定所述SIB2指示的小区为锚点小区。
  5. 根据权利要求1或2所述的方法，其特征在于，在所述终端设备本地没有存储预设的CGI集合的情况下，所述终端设备根据所述指示信息，解析所述系统信息块，包括：
    所述终端设备根据所述指示信息，解析系统信息块SIB2；
    在所述SIB2包括上层指示ULI的情况下，所述终端设备确定所述SIB2指示的小区为锚点小区，其中，所述预设的CGI集合包括至少一个锚点小区的CGI。
  6. 根据权利要求3至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备在确定出一个锚点小区后，停止解析系统信息块。
  7. 根据权利要求3至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备在确定出一个满足小区驻留门限和S准则的锚点小区后，停止解析系统信息块。
  8. 根据权利要求3至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备在将全频段上的所有小区对应的系统信息块解析完成后，停止解析 系统信息块。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向用户显示所述锚点小区的信息。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备将小区重新驻留在满足小区驻留门限和S准则的锚点小区上。
  11. 一种非独立组网下确定锚点小区的方法，其特征在于，包括：
    网络设备发送指示信息，所述指示信息用于指示终端设备解析系统信息块；
    所述网络设备发送所述系统信息块，所述系统信息块用所述终端设备确定是否有锚点小区，所述锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
  12. 根据权利要求11所述的方法，其特征在于，所述指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
    其中，所述搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，所述RAT指示信息用于指示指定的RAT为NR或者LTE。
  13. 根据权利要求11或12所述的方法，其特征在于，所述系统信息块包括：系统信息块SIB1和系统信息块SIB2。
  14. 一种通信装置，其特征在于，包括：
    通信单元：用于接收指示信息，所述指示信息用于指示解析系统信息块；
    处理单元，用于根据所述指示信息，解析所述系统信息块；
    所述处理单元，还用于根据解析结果，确定是否有锚点小区，所述锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
  15. 根据权利要求14所述的通信装置，其特征在于，所述指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
    其中，所述搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，所述RAT指示信息用于指示指定的RAT为NR或者LTE。
  16. 根据权利要求14或15所述的通信装置，其特征在于，所述处理单元，还用于：
    根据所述指示信息，解析系统信息块SIB1；
    根据所述SIB1，确定全球小区识别码CGI；
    确定所述CGI是否属于预设的CGI集合，所述预设的CGI集合包括至少一个锚点小区的CGI；
    在所述CGI属于所述预设的CGI集合的情况下，确定所述CGI标识的小区为锚点小区。
  17. 根据权利要求14或15所述的通信装置，所述处理单元，还用于：
    根据所述指示信息，解析系统信息块SIB1；
    根据所述SIB1，确定全球小区识别码CGI；
    在所述CGI不属于预设的CGI集合的情况下，解析系统信息块SIB2，所述预设的CGI集合包括至少一个锚点小区的CGI；
    在所述SIB2包括上层指示ULI的情况下，确定所述SIB2指示的小区为锚点小区。
  18. 根据权利要求14或15所述的通信装置，其特征在于，在所述通信装置本地没有存储预设的CGI集合的情况下所述处理单元，还用于：
    根据所述指示信息，解析系统信息块SIB2；
    在所述SIB2包括上层指示ULI的情况下，确定所述SIB2指示的小区为锚点小区，其中，所述预设的CGI集合包括至少一个锚点小区的CGI。
  19. 根据权利要求16至18中任一项所述的通信装置，其特征在于，所述处理单元，还用于：
    在确定出一个锚点小区后，停止解析系统信息块。
  20. 根据权利要求16至18中任一项所述的通信装置，其特征在于，所述处理单元，还用于：
    在确定出一个满足小区驻留门限和S准则的锚点小区后，停止解析系统信息块。
  21. 根据权利要求16至18中任一项所述的通信装置，其特征在于，所述处理单元，还用于：
    在将全频段上的所有小区对应的系统信息块解析完成后，停止解析系统信息块。
  22. 根据权利要求14至21中任一项所述的通信装置，其特征在于，所述处理单元，还用于：
    向用户显示所述锚点小区的信息。
  23. 根据权利要求14至22中任一项所述的通信装置，其特征在于，所述处理单元，还用于：
    将小区重新驻留在满足小区驻留门限和S准则的锚点小区上。
  24. 一种通信装置，其特征在于，包括：
    处理单元，用于生成指示信息，所述指示信息用于指示终端设备解析系统信息块；
    通信单元，用于发送所述指示信息；
    所述通信单元，还用于发送所述系统信息块，所述系统信息块用所述终端设备确定是否有锚点小区，所述锚点小区为支持新无线NR接入技术和长期演进系统LTE接入技术的双连接小区。
  25. 根据权利要求24所述的通信装置，其特征在于，所述指示信息包括：搜网类型指示信息，和，无线接入技术RAT指示信息中的至少一种；
    其中，所述搜网类型指示信息用于指示解析系统信息块中的公共陆地移动网络PLMN列表，所述RAT指示信息用于指示指定的RAT为NR或者LTE。
  26. 根据权利要求24或25所述的通信装置，其特征在于，所述系统信息块包括：系统信息块SIB1和系统信息块SIB2。
  27. 一种通信装置，其特征在于，所述装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述通信装置执行如权利要求1至10中任一项所述的方法，或者执行如权利要求11至13中任一项所述的方法。
  28. 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中存储有计算机程序或指令，当计算机读取并执行所述计算机程序或指令时，使得计算机执行 如权利要求1至10中任一项所述的方法，或者执行如权利要求11至13中任一项所述的方法。
  29. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的通信设备执行如权利要求1至10中任一项所述的方法，或者执行如权利要求11至13中任一项所述的方法。
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