Network selection method and communication device

Abstract

The present application discloses a network selection method and a communication device. According to the method, for a scenario in which there are multiple access modes and networks in 6G, a UE selects an access mode or an access node on the basis of service requirements, so that the requirement of being user-centered can be fully met. Furthermore, a network may provide auxiliary access information to assist the UE in selecting an access node.

Description

Network selection method and communication equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 22, 2023, with application number 202311791577.4 and application name “Network Selection Method, Communication Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a network selection method and communication equipment. Background Art

[0003] Seamless connectivity is a requirement for 6th Generation Mobile Communication Technology (6G) networks, particularly user-centric networks. User-centric networks enable users to define, configure, and control network functions related to their subscribed services. With the continuous evolution of communication technologies and the support and introduction of more and more key features, different network access methods have emerged, based on different user connection capabilities and available to users to meet their diverse needs.

[0004] In existing networks, when a user equipment (UE) powers up, it selects its home public land mobile network (PLMN) or equivalent PLMN based on its subscription information and policies. It then selects a cell based on the signal strength of the cell, and whether it meets certain conditions. However, in 6G networks, with multiple access methods and access nodes, there is currently no solution for how the UE can select the appropriate method to access the network. Summary of the Invention

[0005] The embodiments of the present application provide a network selection method and a communication device to implement user-centric access services and better meet the diverse business needs of users.

[0006] In one aspect, an embodiment of the present application provides a network selection method, the method comprising:

[0007] Select the access method or access node based on business needs.

[0008] Optionally, selecting an access mode or an access node according to service requirements includes:

[0009] If there are special business requirements, the access method will be selected based on the requirements of the special business;

[0010] Otherwise, select the access mode or access node based on the requirements of the services to be supported.

[0011] Optionally, the special service includes: connecting with a specific UE;

[0012] The selecting of the access mode according to the requirement of the special service includes: selecting a side link SL access mode and notifying the network.

[0013] Optionally, the connecting with the specific UE includes any one or more of the following situations:

[0014] Cooperate with specific UE for transmission;

[0015] Use specific UE for backup;

[0016] Inter-group communication with specific UEs;

[0017] Access the network through a specific UE.

[0018] Optionally, the prioritizing selecting an access mode according to a requirement of the special service includes: when policy information corresponding to the special service is stored, selecting an access mode or an access node according to the policy information.

[0019] Optionally, the method further includes:

[0020] Receiving identification information broadcasted by the network, the identification information including access information, the access information being used to indicate a network to be accessed by the UE;

[0021] The selecting of the access mode according to the requirements of the special service includes:

[0022] A network to be accessed is selected according to the access information.

[0023] Optionally, the policy information includes: fallback indication information;

[0024] The selecting of the access mode according to the requirement of the special service further includes: if there is no selectable network, determining whether to fall back to the cell selection process according to the fallback indication information.

[0025] Optionally, the identification information further includes: service information, where the service information is used to indicate the services that are allowed;

[0026] The selecting an access mode according to the requirement of the special service further includes: determining whether to perform the special service according to the service information.

[0027] Optionally, the service information includes: a service identifier list or a specific identifier list.

[0028] Optionally, the service that needs to be supported is any one of the following: a service to be initiated, a service allowed to be initiated, and a service that has been triggered.

[0029] On the other hand, an embodiment of the present application further provides a network selection method, the method comprising:

[0030] The identification information is broadcast and sent, where the identification information includes access information, and the access information is used to indicate a network accessed by the UE.

[0031] Optionally, the identification information further includes service information, where the service information is used to indicate permitted services.

[0032] On the other hand, an embodiment of the present application further provides a communication device, comprising:

[0033] The network selection module is used to select an access method or access node according to business requirements.

[0034] On the other hand, an embodiment of the present application further provides a communication device, comprising:

[0035] The sending module is used to broadcast identification information, where the identification information includes access information, and the access information is used to indicate a network accessed by the UE.

[0036] On the other hand, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the aforementioned network selection method are executed.

[0037] On the other hand, an embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the aforementioned network selection method when running the computer program.

[0038] The network selection method and communication device provided in the embodiments of the present application are aimed at scenarios in which there are multiple access methods and networks in 6G. The UE selects an access method or access node based on business needs, thereby fully meeting the different business needs of various users.

[0039] Furthermore, you can prioritize special business needs or make selections based on specific strategies, and then consider the business needs that need to be supported and select the corresponding network, so as to better meet the needs of some special businesses.

[0040] Furthermore, the network may provide auxiliary access information to assist the UE in selecting an access node and achieving corresponding access. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of a network architecture that integrates different network access methods;

[0042] Figure 2 is a schematic diagram of the CCU-DDU-AP network architecture proposed in 6G research;

[0043] Figure 3 is a schematic diagram of cells with different coverage areas in a 6G system;

[0044] FIG4 is a flow chart of a network selection method provided in an embodiment of the present application;

[0045] FIG5 is another flow chart of a network selection method provided in an embodiment of the present application;

[0046] FIG6 is another flow chart of a network selection method provided in an embodiment of the present application;

[0047] FIG7 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0048] FIG8 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0049] FIG9 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objectives, features and beneficial effects of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0051] The communication systems to which the embodiments of the present application are applicable include, but are not limited to, narrowband Internet of Things (NB-IoT) systems, wideband code division multiple access (WCDMA) systems, code division multiple access 2000 (CDMA2000) systems, time division synchronization code division multiple access (TDSCDMA) systems, long term evolution (LTE) systems, fifth-generation mobile communications (5G) systems, new radio (NR) systems, and future evolution systems such as sixth generation (6G), seventh generation (7G), etc., or vehicle-mounted wireless short-range communication systems, or multiple communication convergence systems.

[0052] The technical solution of this application is also applicable to different network architectures, including but not limited to relay network architecture, dual-connection architecture, vehicle-to-everything (V2X) architecture, device-to-device (D2D) architecture, and other architectures.

[0053] The devices in the embodiments of the present application include network devices and may also include terminals. Network devices, also known as access network devices, are devices deployed in a radio access network (RAN) to provide wireless communication functions. For example, they may be base stations (BS) (also known as base station equipment) or base station controllers (BSC).

[0054] The base station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a radio access network (RAN) to provide wireless communication functions. For example, in the second-generation (2G) network, the device providing the base station function includes the base transceiver station (BTS), in the third-generation (3G) network, the device providing the base station function includes the node B (NodeB), in the fourth-generation (4G) network, the device providing the base station function includes the evolved node B (eNB), in the wireless local area network (WLAN), the device providing the base station function is the access point (AP), and in the 5G new radio (NR) network, the device providing the base station function is the next generation node base station (gNB) and the evolved node B (ng-eNB), where the gNB and the terminal communicate using NR technology, and the ng-eNB and the terminal communicate using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio) technology. The base station in the embodiment of the present application also includes a device that provides base station functions in a future new communication system.

[0055] The base station controller in the embodiment of the present application, which may also be referred to as a base station controller device, is a device for managing base stations, such as a base station controller (BSC) in a 2G network, a radio network controller (RNC) in a 3G network, and may also refer to a device for controlling and managing base stations in future new communication systems.

[0056] The term "terminal" in the embodiments of the present application may also be referred to as "terminal equipment" and may refer to various forms of terminal equipment, such as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device. The terminal equipment 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 handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0057] It should be noted that the brackets used in this specification may mean "for example".

[0058] In order to meet user-centric access needs, there are multiple access methods and multiple access nodes in the 6G network.

[0059] As shown in Figure 1, by integrating different network access methods, an access network architecture with flexible connections between different network nodes and multiple terminals is formed. These different access methods may include: different communication systems, namely different Radio Access Technologies (RATs), distributed / centralized antennas, different transmission methods (such as relay or direct connection), satellites, drones, etc., all of which can provide users with services that meet different needs and connectivity capabilities, so that anyone can communicate with anyone at any time and any place.

[0060] In addition to different access methods, in networks based on traditional fixed base stations, 6G research also proposes a possible CCU-DDU-AP architecture for user-centric networks, as shown in Figure 2. This architecture is mainly designed to avoid frequent switching that affects user experience and to maintain continuous service.

[0061] In this architecture, the Cloud Control Unit (CCU) and Distributed Data Unit (DDU) are introduced.

[0062] The CCU is located in the control plane (CP) of the core network (CN) and provides network management and control plane functions. This includes traditional control plane functions such as system information management related to the access stratum (AS) / non-access stratum (NAS), establishment / maintenance / release of radio resource control (RRC) connections, paging control, and security functions, including bearer management, mobility management, UE measurement, report management, and NAS information transmission. The CCU also performs management plane functions in the User Centric Access Network (UCAN), such as UE context management and access point (AP) management.

[0063] The DDU serves as the anchor point for the user plane (UP), managing basic UP functions and the antenna RF transmission functions primarily responsible for the AP. It also uses low-frequency transmission / reception points (TRPs) to ensure wider coverage and high-frequency TRPs to ensure service transmission.

[0064] For a user equipment (UE), when accessing the network, it may connect to one or more access points (APs) to receive services. Possible 6G networking configurations include low-frequency cells for wide coverage and high-frequency cells for service transmission. The wide-coverage frequency cell is referred to as the primary frequency cell or primary cell, as shown in cell A in Figure 3.

[0065] In view of the above-mentioned multiple access modes and multiple access nodes, an embodiment of the present application provides a network selection method, where the UE can select an access mode or access node according to service requirements, thereby fully meeting user-centric requirements.

[0066] FIG4 is a flowchart of a specific application of the network selection method provided in an embodiment of the present application, including the following steps:

[0067] In step 401 , when the UE needs to access the network, it determines whether it has special service needs; if so, it executes step 402 ; otherwise, it executes step 403 .

[0068] The special service may be, for example, a connection with a specific UE, which may be, but not limited to, collaborative transmission with a specific UE, backup using a specific UE, inter-group communication with a specific UE, or network access through a specific UE.

[0069] Step 402: Select an access method based on the requirements of the special service.

[0070] For example, if you need to connect to a specific UE, you can choose the side link (SL) access method to connect to the specific UE, and notify the network of the specific UE information connected to it, including user identification information, etc. The network can then send the data to be transmitted to the UE through the specific UE, or schedule the same data to two UEs or two UEs jointly transmit the same data through special scheduling methods, such as multicast.

[0071] SL communication is direct communication between devices, such as in vehicle-to-vehicle (V2V) communication scenarios, where access needs for this type of service must be prioritized, or in scenarios where two terminals communicate directly. SL communication can employ resource allocation, where the UE requests transmission resources from the base station, which then schedules the data for transmission of SL control information and data. Alternatively, SL communication can employ a UE-independent transmission resource selection model, where a transmission resource pool is pre-configured or configured via a dedicated base station.

[0072] In another non-limiting embodiment, policy information corresponding to special services may also be pre-stored in the UE. For example, this policy information may be stored at the factory according to operator requirements, or may be stored according to user settings, or may be stored via a SIM (Subscriber Identity Module) card. This embodiment of the present application is not limited to this. In the case where policy information corresponding to the special service is stored, an access mode or access node may be selected based on the policy information.

[0073] The policy information can be identified by a specific identifier, or called a special identifier or access identifier. Accordingly, the UE can select an access method or access node in combination with the selection process of the Public Land Mobile Network (PLMN) and the corresponding policy. For example, if the UE is a mobile user, it is necessary to select an access node of the mobile network to perform the special service. The specific implementation process includes that the cell can further broadcast special identifier list information on the basis of broadcasting the PLMN identifier list. In the process of selecting a cell, the user first selects the PLMN and the special identifier, and accordingly selects a cell that can support both the PLMN and the special identifier. Furthermore, the cell needs to broadcast relevant access identifiers or special identifiers, such as a non-terrestrial network (NTN) network indication, a private network indication (factory, home, etc.), or a list of service identifiers or a list of special identifiers allowed.

[0074] Furthermore, the policy information may also include fallback indication information. Accordingly, when no network is available for selection, the UE may determine whether to fall back to the conventional cell selection process based on the fallback indication information. If the fallback indication information indicates that it is possible to fall back to the conventional cell selection process, the UE may select the corresponding cell for access in a conventional manner. If the fallback indication information indicates that it is not possible to fall back to the conventional cell selection process, the UE may access the corresponding network only when a network is available for selection.

[0075] Step 403: Select an access method or access node according to the requirements of the services to be supported.

[0076] The service may be a service that the UE is ready to initiate, a service that is allowed to be initiated, or a service that has been triggered, which is not limited in the embodiments of the present application.

[0077] For example, if some services have low latency requirements, you can choose the Non-Terrestrial Network (NTN). NTN is a technology that connects mobile phones directly to satellites. Satellites provide communication connection services directly to the ground, enabling communication between mobile phones.

[0078] For another example, if some services have lower reliability requirements, the SL mode can be selected to access the network through a relay UE.

[0079] For example, if the service latency requirement is high and the data volume is large, you can choose to access a network with multiple access points (APs) or multiple transmission reception points (TRPs) or multiple cells. In this case, the network can provide auxiliary access information, such as the number of TRPs in the TRP group, or load information. Accordingly, the UE prefers to access the primary frequency cell where the TRP group has a large number of TRPs and / or a low load.

[0080] Furthermore, when the UE accesses the network, it may report the selected frequency cell or access mode to the network.

[0081] The network selection method provided in the embodiment of the present application is aimed at the scenario where there are multiple access methods and networks in 6G. The UE can select an access method or access node according to business requirements, thereby fully meeting user-centric needs.

[0082] Furthermore, in the case of special services, the network may also provide auxiliary access information to the UE to assist the UE in selecting an access node.

[0083] As shown in FIG5 , it is another flow chart of the network selection method provided in an embodiment of the present application.

[0084] In step 501, the network broadcasts identification information, where the identification information includes access information, and the access information is used to indicate the network that the UE accesses. Accordingly, the UE receives the identification information broadcast by the network.

[0085] In step 502, the UE selects a network to access according to the access information.

[0086] As shown in FIG6 , it is another flow chart of the network selection method provided in an embodiment of the present application.

[0087] In step 601, the network broadcasts identification information, which includes access information and service information. Correspondingly, the UE receives the identification information broadcast by the network.

[0088] The access information is used to indicate the network accessed by the UE; the access information may be, for example, an access identifier or a specific identifier.

[0089] The service information is used to indicate the services that are allowed to be performed; the service information may specifically be information such as a service identifier list or a specific identifier list.

[0090] In step 602, the UE determines whether to perform the special service according to the service information, and selects a network to access according to the access information.

[0091] The network selection method provided in the embodiment of the present application gives priority to special business needs or makes selections based on specific policies when performing network selection when there are special business needs or specific policies are stored; moreover, by providing auxiliary access information through the network, the UE can select an access node to achieve corresponding access, thereby better meeting the needs of special services or specific policies.

[0092] Correspondingly, an embodiment of the present application further provides a communication device, as shown in FIG7 , which is a structural diagram of the communication device.

[0093] The communication device 700 includes a network selection module 701 for selecting an access method or access node according to service requirements. Specifically, if there is a special service requirement, the access method or access node is selected based on the requirements of the special service; otherwise, the access method or access node is selected based on the requirements of the service to be supported.

[0094] The communication device 700 may further include a storage module (not shown in the figure) for storing policy information corresponding to the special service. Accordingly, the network selection module 701 may select an access mode or an access node according to the policy information.

[0095] The communication device 700 may further include a receiving module (not shown) configured to receive identification information broadcast by a network, wherein the identification information includes access information indicating a network to be accessed by the UE. Accordingly, the network selection module 701 may select a network to be accessed based on the access information.

[0096] In another non-limiting embodiment, the identification information may further include service information, where the service information is used to indicate the services allowed. Accordingly, the network selection module 701 may further determine whether to perform the special service based on the service information.

[0097] Correspondingly, an embodiment of the present application further provides a communication device, as shown in FIG8 , which is a structural diagram of the communication device.

[0098] The communication device 800 includes a sending module 801 configured to broadcast identification information, wherein the identification information includes access information indicating a network to be accessed by the UE. Furthermore, the identification information may also include service information indicating permitted services.

[0099] For other relevant descriptions of the above-mentioned communication device 700 and communication device 800, reference can be made to the relevant descriptions in Figures 4 to 6, which will not be repeated here.

[0100] In a specific implementation, the above-mentioned device may correspond to a chip with corresponding functions in a network device and / or a user device, such as a SOC (System-On-a-Chip), a baseband chip, a chip module, etc.

[0101] In specific implementations, the various modules / units included in the various devices and products described in the above embodiments may be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for various devices and products applied to or integrated into a chip, the various modules / units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated into a chip module, the various modules / units included therein may all be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module. The element can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0102] The present application also discloses a storage medium, which is a computer-readable storage medium having a computer program stored thereon. When the computer program is run, some or all of the steps of the method shown in Figures 1 to 7 can be executed. The storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. The storage medium may also include a non-volatile memory or a non-transitory memory, etc.

[0103] 9 , an embodiment of the present application further provides a hardware structure diagram of a communication device, wherein the communication device includes a processor 901 , a memory 902 , and a transceiver 903 .

[0104] The processor 901 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. The processor 901 may also include multiple CPUs, and the processor 901 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0105] The memory 902 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, and the embodiments of the present application do not impose any restrictions on this. The memory 902 can be independent (in this case, the memory 902 can be located outside the device or inside the device), or it can be integrated with the processor 901. Among them, the memory 902 can contain computer program code. The processor 901 is used to execute the computer program code stored in the memory 902, thereby implementing the method provided in the embodiments of the present application.

[0106] The processor 901, memory 902, and transceiver 903 are connected via a bus. The transceiver 903 is used to communicate with other devices or a communication network. Optionally, the transceiver 903 may include a transmitter and a receiver. The device used to implement the receiving function in the transceiver 903 can be considered a receiver, and the receiver is used to perform the receiving steps in the embodiments of the present application. The device used to implement the transmitting function in the transceiver 903 can be considered a transmitter, and the transmitter is used to perform the steps in the method embodiments of the present application.

[0107] When the structural diagram shown in Figure 9 is used to illustrate the structure of the communication device involved in the above embodiments, the processor 901 is used to control and manage the operations of the communication device. For example, the processor 901 is used to support the communication device in executing all or part of the steps in Figure 4, Figure 5, or Figure 6, and / or the operations performed by the communication device in other processes described in the embodiments of this application. The processor 901 can communicate with other network entities, such as the above-mentioned network devices, via the transceiver 903. The memory 902 is used to store program code and data of the communication device.

[0108] It should be understood that the term "and / or" as used herein simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " as used herein indicates that the related objects are in an "or" relationship.

[0109] The term "plurality" used in the embodiments of the present application refers to two or more.

[0110] The first, second, etc. descriptions appearing in the embodiments of this application are only for illustration and distinction of the description objects. There is no order, nor does it indicate any special limitation on the number of devices in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application.

[0111] The "connection" appearing in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not impose any limitations on this.

[0112] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0113] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means.

[0114] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0115] In the several embodiments provided in this application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is merely a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical, or other forms.

[0116] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0117] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may be physically arranged separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0118] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to perform some steps of the method described in each embodiment of the present application.

[0119] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims.

Claims

1. A network selection method, characterized in that: The method comprises: Select the access mode or access node according to business requirements.

2. The method according to claim 1, characterized in that The selecting of an access mode or an access node according to business requirements includes: If there are special business requirements, the access mode or access node is selected according to the requirements of the special business; Otherwise, select the access mode or access node according to the requirements of the services to be supported.

3. The method according to claim 2, characterized in that The special services include: connecting with a specific UE; The selecting of the access mode according to the requirement of the special service includes: selecting the side link SL access mode and notifying the network.

4. The method according to claim 3, characterized in that The connection with the specific UE includes any one or more of the following situations: Cooperate with specific UE for transmission; Use specific UE for backup; Inter-group communication with specific UEs; Access the network through a specific UE.

5. The method according to claim 3, characterized in that: The notification network includes: Notify the network of the information of the specific UE.

6. The method according to claim 5, characterized in that The information of the specific UE includes: user identification information of the specific UE.

7. The method according to claim 2, characterized in that The step of preferentially selecting an access mode or an access node according to the requirements of the special service includes: When policy information corresponding to the special service is stored, an access mode or an access node is selected according to the policy information.

8. The method according to any one of claims 3 to 7, characterized in that: The method further comprises: Receiving identification information broadcasted by a network, the identification information comprising: access information, the access information being used to indicate a network to which the UE is to access; The selecting of the access mode according to the requirement of the special service includes: A network to be accessed is selected according to the access information.

9. The method according to claim 7, characterized in that: The policy information includes: rollback indication information; The selecting of the access mode according to the requirement of the special service also includes: If there is no network to select, determine whether to fall back to the cell selection process based on the fallback indication information.

10. The method according to any one of claims 2 to 7, characterized in that: The method further comprises: In response to accessing the network, the selected frequency cell or the selected access mode is reported.

11. The method according to claim 8, characterized in that The identification information also includes: business information, the business information is used to indicate the business that is allowed; The selecting of the access mode according to the requirement of the special service also includes: Determine whether to perform the special service according to the service information.

12. The method according to claim 11, characterized in that The service information includes: a service identifier list or a specific identifier list.

13. The method according to claim 2, characterized in that The service that needs to be supported is any one of the following: a service that is ready to be launched, a service that is allowed to be launched, and a service that has been triggered.

14. A network selection method, characterized in that: The method comprises: The identification information is broadcast and sent, where the identification information includes access information, where the access information is used to indicate a network accessed by the UE.

15. The method according to claim 14, characterized in that The identification information also includes: service information, and the service information is used to indicate the services that are allowed.

16. The method according to claim 15, characterized in that The service information includes: a service identifier list or a specific identifier list.

17. A communication device, characterized in that: The communication device comprises: The network selection module is used to select an access mode or access node according to business requirements.

18. A communication device, characterized in that: The communication device comprises: The sending module is used to broadcast identification information, where the identification information includes access information, and the access information is used to indicate a network accessed by the UE.

19. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the network selection method according to any one of claims 1 to 13 are executed, or the steps of the network selection method according to any one of claims 14 to 16 are executed.

20. A communication device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the steps of the network selection method according to any one of claims 1 to 13 or the steps of the network selection method according to any one of claims 14 to 16 when executing the computer program.

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