CN116939762A - Service area limiting method, system, equipment and medium based on cell granularity - Google Patents

Abstract

The disclosure provides a service area limiting method, a system, equipment and a medium based on cell granularity, and relates to the technical field of communication. The method comprises the following steps: comprising the following steps: adding cell information into service area restriction information signed by a terminal to obtain service area restriction information with cell granularity; and executing the service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity. The method and the device can limit the service area of the cell granularity of the terminal, realize the accurate mobility limiting function, and are applicable to the terminal with wireless and wired integrated access.

Description

Service area limiting method, system, equipment and medium based on cell granularity

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a service area limiting method, system, equipment and medium based on cell granularity.

Background

In order to avoid frequent interaction between the terminal and the network during the mobile process, a service Area restriction scheme with granularity of TA (Tracking Area) is provided in the related art, so that the network can locate the Tracking Area where the terminal is located. Typically, one TA comprises a plurality of base station cells.

For a terminal with a converged wireless and wired access, the area of the terminal is often limited (for example, for a 5G home terminal supporting the converged wireless and wired access, a home gateway may limit service access of the 5G home terminal), so that a service area limitation scheme with a cell as granularity needs to be provided to realize more accurate service area limitation.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure provides a service area limitation method, system, device and medium based on cell granularity, which at least overcomes the technical problem of lower accuracy due to the service area limitation scheme using tracking area as granularity provided in the related art to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a service area restriction method based on cell granularity, including: adding cell information into service area restriction information signed by a terminal to obtain service area restriction information with cell granularity; and executing service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity.

In some embodiments, the service area limitation information of the cell granularity includes: service area restriction information of allowed areas of cell granularity and service area restriction information of disallowed areas of cell granularity.

In some embodiments, the cell information includes: a list of allowed cell identities and a list of disallowed cell identities, the list of allowed cell identities comprising: one or more allowed cell identities, the list of disallowed cell identities comprising: one or more disallowed cell identities.

In some embodiments, the cell information further includes: maximum allowed number of cells.

In some embodiments, the method further comprises: the unified data management function UDM network element stores the user subscription information of the terminal, wherein the user subscription information comprises the following components: service area limitation information of cell granularity; and configuring a service area restriction strategy of cell granularity by the PCF network element of the strategy control function, wherein the service area restriction strategy of cell granularity is used for modifying the service area restriction information of cell granularity.

In some embodiments, the method further comprises: receiving a registration request sent by a terminal through a Radio Access Network (RAN) by an AMF network element; the AMF network element inquires service area limit information of the terminal from the UDM network element according to the registration request of the terminal, wherein the service area limit information comprises the following components: cell information; and the AMF network element performs service area limitation of cell granularity on the terminal according to the service area limitation information containing the cell information.

In some embodiments, the method further comprises: reporting service area restriction information of terminal cell granularity to PCF network element by AMF network element; and modifying the service area limit information of the terminal cell granularity by the PCF network element, and transmitting the service area limit information of the modified cell granularity to the AMF network element.

In some embodiments, the method further comprises: sending service area restriction information of terminal cell granularity to the RAN by an AMF network element; and the RAN performs service area limitation of cell granularity on the terminal according to the received service area limitation information.

In some embodiments, the method further comprises: the AMF network element sends service area restriction information of cell granularity to the terminal; and the terminal performs mobility restriction of cell granularity according to the received service area restriction information.

In some embodiments, the terminal is a terminal supporting a converged wireless and wired access; wherein the terminal performing mobility restriction of cell granularity according to the received service area restriction information includes: if the terminal receives the service area restriction information of the allowed area, the terminal is not allowed to access the cell which is not in the allowed area; if the terminal receives service area restriction information of the disallowed area, allowing the terminal to access a cell which is not in the disallowed area; and if the terminal does not receive the service area restriction information, allowing the terminal to access any cell.

According to another aspect of the present disclosure, there is also provided a service area restriction system based on cell granularity, including: RAN for access terminals; the UDM network element is used for adding cell information into service area restriction information signed by the terminal to obtain service area restriction information with cell granularity; and the AMF network element is used for executing the service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity.

In some embodiments, the system further comprises: and the PCF network element is used for configuring a service area limiting strategy with cell granularity, wherein the service area limiting strategy with cell granularity is used for modifying the service area limiting information with cell granularity.

According to another aspect of the present disclosure, there is also provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the cell granularity-based service area restriction method of any of the above via execution of the executable instructions.

According to another aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the cell granularity-based service area restriction method of any one of the above.

The service area restriction method, system, equipment and medium based on the cell granularity, provided in the embodiments of the present disclosure, adds cell information in service area restriction information subscribed by a terminal to obtain service area restriction information of the cell granularity, so that a network entity (for example, a UDM network element, a PCF network element, an AMF network element and a RAN) performs service area restriction of the cell granularity on the terminal according to the service area restriction information of the cell granularity. Through the embodiment of the disclosure, the service area limitation of the cell granularity can be performed on the terminal, the accurate mobility limitation function is realized, and the method and the device are applicable to the terminal with wireless and wired integrated access.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of an application system architecture in an embodiment of the present disclosure;

FIG. 2 illustrates a flow chart of a service area restriction method based on cell granularity in an embodiment of the disclosure;

fig. 3 is a flowchart of an alternative service area limitation method for performing cell granularity on a terminal by an AMF network element in an embodiment of the disclosure;

FIG. 4 is a flow chart illustrating an alternative service area restriction policy management method for implementing cell granularity by PCF network elements in an embodiment of the present disclosure;

fig. 5 is a flowchart illustrating an alternative service area restriction method for cell granularity of a terminal by a RAN in an embodiment of the present disclosure;

FIG. 6 illustrates a flow chart of an alternative mobility restriction method for a terminal to perform cell granularity in an embodiment of the disclosure;

FIG. 7 illustrates a schematic diagram of a service area restriction system based on cell granularity in an embodiment of the disclosure;

FIG. 8 is a schematic diagram illustrating a service area restriction system interaction process based on cell granularity in an embodiment of the disclosure;

FIG. 9 shows a block diagram of an electronic device in an embodiment of the disclosure;

fig. 10 shows a schematic diagram of a computer storage medium in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

For ease of understanding, before describing embodiments of the present disclosure, several terms referred to in the embodiments of the present disclosure are first explained as follows:

TA: tracking Area, tracking Area.

RAN: radio Access Network, a radio access network for providing a connection between a terminal and a core network.

PCF: policy Control Function, policy control function.

AMF: access and Mobility Mangement Function, access and mobility management functions.

UDM: unified Data Management, unifying data management functions.

The following detailed description of embodiments of the present disclosure refers to the accompanying drawings.

Fig. 1 illustrates an exemplary application system architecture diagram to which the service area restriction method based on cell granularity in the embodiments of the present disclosure may be applied.

As shown in fig. 1, the system architecture includes a terminal 101, a network 102, and a network side device 103; any one of the terminals 101 shown in fig. 1 may be used as a remote terminal or a relay terminal, and communication based on proximity services may be established between the remote terminal and the relay terminal, where the remote terminal may directly access the network or may access the network via the relay terminal.

The medium used by the network 102 to provide a communication link between the terminal 101 and the network-side device 103 may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over a network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

Optionally, the terminal in the embodiments of the present disclosure may also be referred to as a UE (User Equipment), and in a specific implementation, the terminal may be a terminal-side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device, or a vehicle-mounted Device.

In some embodiments, the terminal in the embodiments of the present disclosure may be a terminal supporting a wireless and wired converged access, for example, various 5G home terminals, including but not limited to intelligent air conditioners, televisions, washing machines, and the like. It should be noted that, in the embodiment of the present invention, the specific type of the terminal is not limited.

The network side device 103 refers to various network entities of the access network or the core network, including but not limited to a radio access network RAN (which may be, but not limited to, NG-RAN), a UDM network element, an AMF network element, and a PCF network element, and it should be noted that, in the embodiment of the present disclosure, the specific type of the network side device is not limited.

Those skilled in the art will appreciate that the number of terminals, networks and network side devices in fig. 1 is merely illustrative and that any number of terminals, networks and servers may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

Under the system architecture described above, the embodiments of the present disclosure provide a service area restriction method based on cell granularity, which may be performed by any electronic device with computing processing capability. In some embodiments, the service area limitation method based on cell granularity provided in the embodiments of the present disclosure may be performed in the network side device shown in fig. 1.

Fig. 2 shows a flowchart of a service area limitation method based on cell granularity in an embodiment of the disclosure, and as shown in fig. 2, the service area limitation method based on cell granularity provided in the embodiment of the disclosure includes the following steps:

s202, adding cell information into service area limitation information signed by the terminal to obtain service area limitation information with cell granularity.

The service area limitation information refers to information for limiting a service area of the terminal, and the cell information added in the service area limitation information may be used to distinguish the identification information of each base station cell, and in the embodiment of the present disclosure, the specific form of the cell identification information is not limited. In some embodiments, the cell IDs of the respective base station cells may be added in the service area limitation information to distinguish between the different base station cells. By adding cell information to the service area restriction information, service area restriction of cell granularity can be achieved.

Further, in some embodiments, the service area limitation information of the cell granularity in the embodiments of the present disclosure includes: service area restriction information of allowed areas of cell granularity and service area restriction information of disallowed areas of cell granularity.

In some embodiments, in embodiments of the present disclosure, the cell information added in the service area restriction information may include: a permitted cell identity list and a non-permitted cell identity list, the permitted cell identity list comprising: the list of one or more allowed cell identities and not allowed cell identities comprises: one or more disallowed cell identities.

In some other embodiments, the cell information added in the service area restriction information may further include: maximum allowed number of cells.

S204, according to the service area limitation information of the cell granularity, the service area limitation of the cell granularity is executed for the terminal.

Since the cell information is added to the service area restriction information subscribed by the terminal, the service area restriction of the cell granularity can be performed on the terminal.

In a specific implementation, the terminal may add service area limitation information of cell granularity to the user subscription information sent to the UDM network element. Thus, in some embodiments, the service area restriction method based on cell granularity provided in the embodiments of the present disclosure may further include the steps of: the unified data management function UDM network element stores the user subscription information of the terminal, wherein the user subscription information comprises the following components: cell granularity service area restriction information.

Further, in order to implement service area restriction policy management of cell granularity, the service area restriction method based on cell granularity provided in the embodiments of the present disclosure may further include the following steps: and configuring a service area restriction strategy of cell granularity by the PCF network element of the strategy control function, wherein the service area restriction strategy of cell granularity is used for modifying the service area restriction information of cell granularity.

In some embodiments, as shown in fig. 3, the service area limitation method based on cell granularity provided in the embodiments of the present disclosure may enable an AMF network element to perform cell granularity service area limitation on a terminal by:

s302, an AMF network element receives a registration request sent by a terminal through a RAN (radio access network);

s304, the AMF network element inquires service area limitation information of the terminal from the UDM network element according to the registration request of the terminal, wherein the service area limitation information comprises: cell information;

s306, the AMF network element executes service area limitation of cell granularity on the terminal according to the service area limitation information containing the cell information.

In some embodiments, as shown in fig. 4, the service area restriction method based on cell granularity provided in the embodiments of the present disclosure may enable the PCF network element to implement service area restriction policy management of cell granularity by:

s402, reporting service area restriction information of terminal cell granularity to the PCF network element by the AMF network element;

s404, the PCF network element modifies the service area limitation information of the granularity of the terminal cell, and sends the modified service area limitation information of the granularity of the cell to the AMF network element.

In some embodiments, as shown in fig. 5, the service area limitation method based on cell granularity provided in the embodiments of the present disclosure may enable the RAN to perform service area limitation of cell granularity on the terminal by:

s502, AMF network element sends service area limitation information of terminal cell granularity to RAN;

s504, the RAN performs cell granularity service area restriction on the terminal according to the received service area restriction information.

In some embodiments, as shown in fig. 6, the service area restriction method based on cell granularity provided in the embodiments of the present disclosure may enable the terminal to perform mobility restriction of cell granularity by:

s602, sending service area restriction information of cell granularity to a terminal by an AMF network element;

and S604, the terminal executes mobility restriction of cell granularity according to the received service area restriction information.

It should be noted that, the service area limitation method based on cell granularity provided in the embodiments of the present disclosure may be applied to, but not limited to, terminals (for example, various 5G home terminals) that support wireless and wired converged access. When the service area limitation method based on cell granularity provided in the embodiment of the present disclosure is applied to a terminal supporting a wireless and wired converged access, the service area limitation method based on cell granularity provided in the embodiment of the present disclosure may perform mobility limitation of cell granularity by: if the terminal receives the service area restriction information of the allowed area, the terminal is not allowed to access the cell which is not in the allowed area; if the terminal receives the service area restriction information of the disallowed area, allowing the terminal to access the cell which is not in the disallowed area; and if the terminal does not receive the service area restriction information, allowing the terminal to access any cell.

Based on the same inventive concept, there is also provided in the embodiments of the present disclosure a service area restriction system based on cell granularity, as described in the following embodiments. Since the principle of solving the problem of the system embodiment is similar to that of the method embodiment, the implementation of the system embodiment can be referred to the implementation of the method embodiment, and the repetition is omitted.

Fig. 7 is a schematic diagram of a service area restriction system based on cell granularity in an embodiment of the disclosure, as shown in fig. 7, where the system includes: a radio access network RAN701, a UDM network element 702 and an AMF network element 703.

Wherein, the radio access network RAN701 is used for accessing the terminal;

the UDM network element 702 is configured to add cell information to service area limitation information subscribed by the terminal, so as to obtain service area limitation information of cell granularity;

the AMF network element 703 is configured to perform cell-granularity service area restriction on the terminal according to the cell-granularity service area restriction information.

In some embodiments, the service area limitation information of the terminal subscription may include: service area restriction information of allowed areas of cell granularity and service area restriction information of disallowed areas of cell granularity.

In some embodiments, the cell information added by the UDM network element 702 in the service area limitation information includes: a permitted cell identity list and a non-permitted cell identity list, the permitted cell identity list comprising: the list of one or more allowed cell identities and not allowed cell identities comprises: one or more disallowed cell identities.

In some embodiments, the cell information added by the UDM network element 702 in the service area limitation information may further include: maximum allowed number of cells.

In some embodiments, the service area restriction system based on cell granularity provided in the embodiments of the present disclosure further includes: PCF network element 704 configured to configure a cell-granularity service area restriction policy, where the cell-granularity service area restriction policy is used to modify cell-granularity service area restriction information.

In some embodiments, in the service area restriction system based on cell granularity provided in the embodiments of the present disclosure, the UDM network element is further configured to store user subscription information of a terminal, where the user subscription information includes: cell granularity service area restriction information.

In some embodiments, in the service area restriction system based on cell granularity provided in the embodiments of the present disclosure, the AMF network element is further configured to: receiving a registration request sent by a terminal through a Radio Access Network (RAN); inquiring service area restriction information of the terminal containing cell information from a UDM network element according to a registration request of the terminal; and performing cell granularity service area restriction on the terminal according to the service area restriction information containing the cell information.

In some embodiments, in the service area restriction system based on cell granularity provided in the embodiments of the present disclosure, the AMF network element is further configured to report service area restriction information of terminal cell granularity to the PCF network element; the PCF network element is further configured to modify service area restriction information of a cell granularity of the terminal, and send the modified service area restriction information of the cell granularity to the AMF network element.

In some embodiments, in the service area restriction system based on cell granularity provided in the embodiments of the present disclosure, the AMF network element is further configured to send service area restriction information of terminal cell granularity to the RAN; the RAN is further configured to perform cell-granularity service area restriction on the terminal according to the received service area restriction information.

In some embodiments, in the service area restriction system based on cell granularity provided in the embodiments of the present disclosure, an AMF network element sends service area restriction information of cell granularity to a terminal; the terminal is further configured to perform mobility restriction of cell granularity according to the received service area restriction information.

In some embodiments, when the terminal accessed by the RAN is a terminal supporting wireless and wired converged access, if the terminal receives service area restriction information of an allowed area, the terminal is not allowed to access a cell not in the allowed area; if the terminal receives the service area restriction information of the disallowed area, allowing the terminal to access the cell which is not in the disallowed area; and if the terminal does not receive the service area restriction information, allowing the terminal to access any cell.

Fig. 8 is a schematic diagram illustrating a service area restriction system interaction process based on cell granularity in an embodiment of the disclosure, where, as shown in fig. 8, the method specifically includes:

s800a, the UDM network element stores service area limit information of cell granularity of terminal subscription.

In particular, the UDM network element may store service area limitation information of allowed or disallowed areas of the terminal based on cell granularity.

S800b, the PCF network element configures a service area restriction policy for the cell granularity.

Specifically, the PCF network element may configure a service area restriction policy of cell granularity and manage the service area restriction.

S802, the terminal sends a registration request to the RAN.

S804, the RAN selects an AMF network element for the terminal.

S806, the RAN sends a registration request of the terminal to the selected AMF network element.

S808, the AMF network element obtains service area limitation information from the UDM network element, where the service area limitation information includes cell information.

Specifically, the service area limitation information of the cell granularity acquired by the AMF network element from the UDM network element may include: a list of allowed cell IDs, a list of disallowed cell IDs, and a maximum number of allowed cell IDs (optional).

S810, the AMF network element reports contracted service area limitation information to the PCF network element, wherein the service area limitation information comprises cell information.

Specifically, the service area limitation information of the cell granularity reported by the AMF network element to the PCF network element may include: a list of allowed cell IDs, a list of disallowed cell IDs, and a maximum number of allowed cell IDs (optional).

S812, the PCF network element issues the modified service area limitation information (including cell information) to the AMF network element.

S814, the AMF network element performs service area restriction of cell granularity.

S816, the AMF network element returns a registration response result to the RAN and the terminal, where the registration response result includes service area restriction information carrying cell information.

S818, the RAN performs cell-granularity service area restriction.

Specifically, the RAN may select a target cell for the terminal according to the service area limitation information of the cell granularity.

S820, the terminal performs mobility restriction of cell granularity.

For terminals supporting converged wireless and wireline access (e.g., various 5G home terminals), if the terminal receives an allowed zone from the network, any cell ID that is not in the allowed zone is considered to be not allowed to be accessed; if the terminal receives a disallowed area from the network, any cell ID that is not in the disallowed area is considered to be allowed to be accessed; if the terminal does not receive any service area restriction information, any cell ID is considered to be allowed access.

In summary, according to the service area restriction scheme based on cell granularity provided in the embodiments of the present disclosure, by adding cell information to the service area restriction information, a network entity (for example, UDM network element, PCF network element, AMF network element, and RAN) may implement cell granularity service area restriction on a terminal, and since the cell granularity is smaller than that of a tracking area, an accurate mobility restriction function may be implemented.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 900 according to such an embodiment of the present disclosure is described below with reference to fig. 9. The electronic device 900 shown in fig. 9 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 9, the electronic device 900 is embodied in the form of a general purpose computing device. Components of electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, and a bus 930 connecting the different system components (including the storage unit 920 and the processing unit 910).

Wherein the storage unit stores program code that is executable by the processing unit 910 such that the processing unit 910 performs steps according to various exemplary embodiments of the present disclosure described in the above-described "exemplary methods" section of the present specification. For example, the processing unit 910 may perform the following steps of the method embodiment described above: adding cell information into service area restriction information signed by a terminal to obtain service area restriction information with cell granularity; and executing the service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity.

In some embodiments, the processing unit 910 may further perform the following steps of the method embodiment: the unified data management function UDM network element stores the user subscription information of the terminal, wherein the user subscription information comprises the following components: service area limitation information of cell granularity; and configuring a service area restriction strategy of cell granularity by the PCF network element of the strategy control function, wherein the service area restriction strategy of cell granularity is used for modifying the service area restriction information of cell granularity.

In some embodiments, the processing unit 910 may further perform the following steps of the method embodiment: receiving a registration request sent by a terminal through a Radio Access Network (RAN) by an AMF network element; the AMF network element inquires service area limit information of the terminal from the UDM network element according to the registration request of the terminal, wherein the service area limit information comprises: cell information; and the AMF network element performs service area limitation of cell granularity on the terminal according to the service area limitation information containing the cell information.

In some embodiments, the processing unit 910 may further perform the following steps of the method embodiment: reporting service area restriction information of terminal cell granularity to PCF network element by AMF network element; and the PCF network element modifies the service area limitation information of the granularity of the terminal cell and transmits the service area limitation information of the granularity of the modified cell to the AMF network element.

In some embodiments, the processing unit 910 may further perform the following steps of the method embodiment: sending service area restriction information of terminal cell granularity to the RAN by an AMF network element; and the RAN performs cell granularity service area restriction on the terminal according to the received service area restriction information.

In some embodiments, the processing unit 910 may further perform the following steps of the method embodiment: the AMF network element sends service area restriction information of cell granularity to the terminal; and the terminal performs mobility restriction of cell granularity according to the received service area restriction information.

In some embodiments, when the terminal is a terminal supporting a converged wireless and wired access, the processing unit 910 may further perform the following steps of the method embodiment: if the terminal receives the service area restriction information of the allowed area, the terminal is not allowed to access the cell which is not in the allowed area; if the terminal receives the service area restriction information of the disallowed area, allowing the terminal to access the cell which is not in the disallowed area; and if the terminal does not receive the service area restriction information, allowing the terminal to access any cell.

The storage unit 920 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 9201 and/or cache memory 9202, and may further include Read Only Memory (ROM) 9203.

The storage unit 920 may also include a program/utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

The bus 930 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 900 may also communicate with one or more external devices 940 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 900, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 950. Also, electronic device 900 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 960. As shown, the network adapter 960 communicates with other modules of the electronic device 900 over the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 900, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. Fig. 10 illustrates a schematic diagram of a computer storage medium in an embodiment of the present disclosure, and as illustrated in fig. 10, a program product capable of implementing the method of the present disclosure is stored on the computer storage medium 1000. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (14)

1. A service area restriction method based on cell granularity, comprising:

adding cell information into service area restriction information signed by a terminal to obtain service area restriction information with cell granularity;

and executing service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity.

2. The service area limitation method based on cell granularity according to claim 1, wherein the service area limitation information of cell granularity comprises: service area restriction information of allowed areas of cell granularity and service area restriction information of disallowed areas of cell granularity.

3. The service area restriction method based on cell granularity according to claim 1, wherein the cell information comprises: a list of allowed cell identities and a list of disallowed cell identities, the list of allowed cell identities comprising: one or more allowed cell identities, the list of disallowed cell identities comprising: one or more disallowed cell identities.

4. The service area restriction method based on cell granularity according to claim 3, wherein the cell information further comprises: maximum allowed number of cells.

5. The cell granularity-based service area restriction method according to claim 1, further comprising:

the unified data management function UDM network element stores the user subscription information of the terminal, wherein the user subscription information comprises the following components: service area limitation information of cell granularity;

and configuring a service area restriction strategy of cell granularity by the PCF network element of the strategy control function, wherein the service area restriction strategy of cell granularity is used for modifying the service area restriction information of cell granularity.

6. The cell granularity-based service area restriction method according to claim 5, further comprising:

receiving a registration request sent by a terminal through a Radio Access Network (RAN) by an AMF network element;

the AMF network element inquires service area limit information of the terminal from the UDM network element according to the registration request of the terminal, wherein the service area limit information comprises the following components: cell information;

and the AMF network element performs service area limitation of cell granularity on the terminal according to the service area limitation information containing the cell information.

7. The cell granularity-based service area restriction method according to claim 6, further comprising:

reporting service area restriction information of terminal cell granularity to PCF network element by AMF network element;

and modifying the service area limit information of the terminal cell granularity by the PCF network element, and transmitting the service area limit information of the modified cell granularity to the AMF network element.

8. The cell granularity-based service area restriction method according to claim 6, further comprising:

sending service area restriction information of terminal cell granularity to the RAN by an AMF network element;

and the RAN performs service area limitation of cell granularity on the terminal according to the received service area limitation information.

9. The cell granularity-based service area restriction method according to claim 6, further comprising:

the AMF network element sends service area restriction information of cell granularity to the terminal;

and the terminal performs mobility restriction of cell granularity according to the received service area restriction information.

10. The service area limitation method based on cell granularity according to claim 9, wherein the terminal is a terminal supporting a wireless and wired converged access; wherein the terminal performing mobility restriction of cell granularity according to the received service area restriction information includes:

if the terminal receives the service area restriction information of the allowed area, the terminal is not allowed to access the cell which is not in the allowed area;

if the terminal receives service area restriction information of the disallowed area, allowing the terminal to access a cell which is not in the disallowed area;

and if the terminal does not receive the service area restriction information, allowing the terminal to access any cell.

11. A service area restriction system based on cell granularity, comprising:

RAN for access terminals;

the UDM network element is used for adding cell information into service area restriction information signed by the terminal to obtain service area restriction information with cell granularity;

and the AMF network element is used for executing the service area limitation of the cell granularity on the terminal according to the service area limitation information of the cell granularity.

12. The cell granularity-based service area restriction system according to claim 11, wherein the system further comprises:

and the PCF network element is used for configuring a service area limiting strategy with cell granularity, wherein the service area limiting strategy with cell granularity is used for modifying the service area limiting information with cell granularity.

13. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the cell granularity-based service area restriction method of any one of claims 1 to 10 via execution of the executable instructions.

14. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the cell granularity based service area restriction method of any of claims 1 to 10.