Service area division method, device and system, processor and storage medium

Abstract

The invention relates to a service area division method, device and system, a processor and a storage medium. The method comprises the following steps: determining a to-be-processed area; performing region division on the to-be-processed region based on the service region division strategy to obtain a plurality of divided service regions; the service area division strategy is pre-configured by a distributed node in the distributed network architecture, a radio access network (RAN), user equipment or a target division granularity matched with the area characteristics of the area to be processed in the activity range of the user equipment; constructing a service area list based on the area information of the plurality of service areas; the service area list is used for being sent to the user equipment so as to perform service area pre-configuration on the user equipment and indicate that mobility registration updating and switching do not occur when the user equipment moves in a plurality of service areas in the service area list. By adopting the method provided by the invention, the user equipment can be prevented from frequently performing mobility registration updating, so that relatively large resource overhead and signaling interaction can be avoided.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technology, and in particular to a service area division method, device, system, processor and storage medium. Background Art

[0002] Traditional mobile communication network technologies, such as 5G (5th Generation Mobile Communication Technology), use centralized control methods to manage and control the network and provide network services such as communication for user devices.

[0003] In the current network management and control process, in order to provide better network services for users, tracking areas TA (Tracking Area) are divided based on the service range of the base station, and then multiple TAs are classified into the same TA list (also expressed as TAL, Tracking Area List) and assigned to a user equipment. As a result, when the user equipment (UE, User Equipment) moves in the area corresponding to the TA list, it does not need to frequently perform mobility registration, thereby reducing frequent interactions with the network.

[0004] However, with the gradual development of current mobile communication technology, mobile communication network systems have gradually evolved from centralized control to distributed control. If the service area is still divided according to the granularity of tracking areas in the centralized network architecture, the area division granularity is inappropriate, which may easily cause user equipment to frequently perform mobility registration updates during movement or the paging range of user equipment to be too large. Both situations will cause the user equipment to incur large overhead and signaling interaction. Summary of the invention

[0005] Based on this, it is necessary to provide a service area division method, device, system, processor and storage medium to address the above technical problems.

[0006] In a first aspect, the present application provides a service area division method. The method is applied to a radio access network RAN, and the method includes:

[0007] Identify the area to be treated;

[0008] The area to be processed is divided into regions based on a service area division strategy to obtain a plurality of divided service areas; the service area division strategy is pre-configured by a target division granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment;

[0009] A service area list is constructed based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area for the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas in the service area list.

[0010] In one of the embodiments, the service area division strategy is pre-configured with a single radio access network RAN ​​as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain multiple service areas after division, including:

[0011] When the base station deployment in the area to be processed meets the first base station distribution condition, the area to be processed is divided into multiple service areas based on a single radio access network RAN ​​in the area to be processed as a division granularity; each of the radio access networks RAN is connected to multiple distributed nodes.

[0012] In one of the embodiments, the service area division strategy is pre-configured with multiple radio access networks RAN as the target division granularity, and the area to be processed is divided into multiple service areas based on the service area division strategy, including:

[0013] When the base station deployment in the to-be-processed area meets the second base station distribution condition, aggregating multiple wireless access networks that meet the preset physical distance condition into one partition granularity;

[0014] Based on the aggregated division granularity, the area to be processed is divided into a plurality of service areas.

[0015] In one of the embodiments, the service area division strategy is pre-set with the user equipment as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain a plurality of divided service areas, including:

[0016] Obtaining network slice information carried by the user equipment when initially registered; the network slice information includes network slice types supported by the user equipment;

[0017] Based on the network slice information, the distributed nodes supporting the same network slice type in the area to be processed are divided into the same service area to obtain multiple divided service areas.

[0018] In one of the embodiments, the service area division strategy is pre-set with the user equipment activity range as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain multiple service areas after division, including:

[0019] Based on the user equipment activity range, each distributed node within the user equipment activity range in the area to be processed is divided into one type of service area, and the distributed nodes outside the user equipment activity range are divided into another service area, thereby obtaining a plurality of divided service areas.

[0020] In one of the embodiments, after constructing the service area list based on the area information of the multiple service areas, the method further includes:

[0021] In response to the mobility registration update request of the user equipment, a service area list corresponding to the area is acquired, and the service area list is sent to the user equipment.

[0022] In one of the embodiments, in response to the mobility registration update request of the user equipment, obtaining a service area list corresponding to the area where the user equipment is located includes:

[0023] When the area is divided by each distributed node in the distributed network architecture or by the activity range of the user equipment, in response to a mobility registration update request of the user equipment, receiving the area information of the multiple service areas fed back by each of the distributed nodes in the area, and constructing a service area list corresponding to the area based on the area information of the multiple service areas;

[0024] In the area where the user equipment is located, a single radio access network RAN ​​is used as a division granularity, or multiple radio access networks are aggregated as a division granularity, in response to a mobility registration update request of the user equipment, area information of the multiple service areas fed back by each of the radio access networks RAN in the area where the user equipment is located is received, and based on the area information of the multiple service areas, a service area list corresponding to the area where the user equipment is located is constructed.

[0025] In a second aspect, the present application provides a service area division method. The method is applied to a user equipment, and the method includes:

[0026] Sending a mobility registration update request to a radio access network RAN, and receiving a service area list sent by the radio access network RAN; the service area list includes area information of multiple service areas; the multiple service areas are obtained by dividing the area to be processed where the user equipment is located based on a service area division strategy, and the service area division strategy is pre-configured by a target division granularity that matches the area characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment, or an activity range of the user equipment;

[0027] When the user equipment moves between the multiple service areas, a configuration instruction is sent to the distributed nodes in the multiple service areas based on the area information of the multiple service areas to complete the mobility processing of the user equipment between the multiple service areas.

[0028] In one of the embodiments, when the user equipment moves between the multiple service areas, sending configuration instructions to distributed nodes in the multiple service areas based on the area information of the multiple service areas includes:

[0029] When the user equipment moves from a first service area to a second service area among the multiple service areas, sending a deactivation instruction to a distributed node in the first service area, and sending an activation instruction to a distributed node in the second service area;

[0030] The service of the user equipment is transferred from the distributed node in the first service area to the distributed node in the second service area.

[0031] In a third aspect, the present application also provides a service area division device. The device includes:

[0032] A determination module, used for determining the area to be processed;

[0033] A partitioning module, configured to partition the area to be processed based on a service area partitioning strategy to obtain a plurality of service areas after partitioning; the service area partitioning strategy is pre-configured by a target partitioning granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment;

[0034] A construction module is used to construct a service area list based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area of ​​the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas.

[0035] In a fourth aspect, the present application further provides a service area division system, the system comprising:

[0036] A radio access network RAN ​​is used to determine an area to be processed; divide the area to be processed into regions based on a service area division strategy to obtain a plurality of divided service areas; and construct a service area list based on the regional information of the plurality of service areas; the service area division strategy is pre-configured by a target division granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user device, or an activity range of a user device;

[0037] The user equipment is used to send a mobility registration update request to the radio access network RAN, and receive a service area list sent by the radio access network RAN.

[0038] In one embodiment, the system further comprises:

[0039] A distributed node, used for allocating a service area to the user equipment when the service area division strategy takes the distributed nodes in the distributed network architecture as the target division granularity, if the user equipment moves between the multiple service areas;

[0040] The area information of the allocated service areas is sent to the radio access network RAN, so that the service area list including the area information of each allocated service area is sent to the user equipment through the radio access network RAN.

[0041] In a fifth aspect, the present application further provides a processor-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0042] Identify the area to be treated;

[0043] The area to be processed is divided into regions based on a service area division strategy to obtain a plurality of divided service areas; the service area division strategy is pre-configured by a target division granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment;

[0044] A service area list is constructed based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area for the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas in the service area list.

[0045] The above-mentioned service area division method, device, processor, storage medium and computer program product determine the target area where the user equipment is located in response to a paging request sent by a user equipment; divide the target area based on a service area division strategy to obtain multiple service areas after division; the service area division strategy is pre-configured by a distributed node in a distributed network architecture, a wireless access network RAN, a user equipment or a target division granularity that matches the regional characteristics of the target area in the user equipment activity range; based on the regional information of the multiple service areas, a service area list is constructed, and the service area list is sent to the user equipment to indicate that when the user equipment moves in the multiple service areas, no mobility registration update and switching will occur. With this method, a service area division strategy containing a target division granularity is matched to the area to be processed based on the regional characteristics of the area to be processed, and the area to be processed is divided by the service area division strategy, so that the area to be processed can be divided into multiple service areas of appropriate size, thereby ensuring that when the user equipment moves in multiple service areas of the area to be processed, no mobility registration update and switching will occur, and no large overhead and signaling interaction will be generated due to the excessively large paging range. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 A schematic diagram of a distributed network architecture in one embodiment;

[0048] Figure 2 An application environment diagram of a service area division method in an embodiment;

[0049] Figure 3 A schematic diagram of a flow chart of a service area division method in an embodiment;

[0050] Figure 4 A schematic diagram of a service area division result determined based on distributed nodes as the target division granularity in one embodiment;

[0051] Figure 5 A schematic diagram of a service area division result determined with RAN as the target division granularity in an embodiment;

[0052] Figure 6 It is an example flow chart of a method for dividing a service area with multiple RANs as the target division granularity in one embodiment;

[0053] Figure 7 A schematic diagram of a service area division result determined based on multiple RANs as target division granularity in an embodiment;

[0054] Figure 8 It is an example flow chart of a method for dividing a service area with user equipment as the target division granularity in one embodiment;

[0055] Fig. 9 A schematic diagram of a service area division result determined based on user equipment as a target division granularity in an embodiment;

[0056] Fig.10 A schematic diagram of a service area division result determined based on the activity range of a user equipment as the target division granularity in an embodiment;

[0057] Fig.11 A flowchart of a specific example of a service area division method in one embodiment;

[0058] Fig.12 A schematic diagram of a flow chart of a method for dividing a service area applied to a user equipment in an embodiment;

[0059] Fig.13 It is a flowchart of steps for performing service switching between service areas in one embodiment;

[0060] Fig.14 It is a structural block diagram of a service area division device in one embodiment;

[0061] Fig.15 FIG. 4 is a structural block diagram of a service area division device in another embodiment. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] In one embodiment, with the gradual development of mobile communication technology, 6G network (6 th The development trend of the network architecture of the 6th generation mobile networks and subsequent gradually updated and iterated mobile communication networks is a network architecture that combines centralized and distributed networks. Figure 1As shown, it contains a large number of distributed nodes. Since the design of 6G network needs to consider the distributed network architecture, the embodiment of this application takes 6G network as an example for explanation. Other updated and iterated networks are implemented in the same way as 6G network. A service area division method is provided, which can be applied to Figure 2 In the application environment shown. A service area division system (200) is deployed in the application environment, and the service area division system (200) includes a radio access network RAN ​​(201) and a user device (202). The user device (202) communicates with the network through the radio access network RAN. The radio access network RAN ​​(201) is used to determine the area to be processed, divide the area to be processed based on the service area division strategy, and obtain multiple service areas after division. Then, based on the regional information of the multiple service areas, a service area list is constructed. The service area division strategy is pre-configured by the distributed nodes in the distributed network architecture, the radio access network RAN, the user device, or the target division granularity matching the regional characteristics of the area to be processed in the activity range of the user device. The user device (202) is used to send a mobility registration update request to the radio access network RAN, and receive the service area list sent by the radio access network RAN, so that, based on the received service area list, it is achieved that when the user device moves in the multiple service areas in the service area list, no mobility registration update and switching will occur.

[0064] Optionally, the user equipment (202) involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. This is not limited in the embodiment of the present application.

[0065] In one embodiment, the service area division system also includes a distributed node (also referred to as a network node or a distributed network node), which is used when the service area division strategy uses the distributed node in the distributed network architecture as the target division granularity. If the user equipment moves between multiple service areas, the distributed node can allocate a service area to the user equipment; send the area information of the allocated service area to the wireless access network RAN, so that the service area list containing the area information of each allocated service area is sent to the user equipment (202) through the wireless access network RAN, thereby realizing the configuration of the user equipment (202).

[0066] In one embodiment, Figure 3 As shown, a service area division method is provided, and the method is applied to Figure 2 Taking the radio access network RAN ​​(hereinafter referred to as RAN) as an example, the method includes the following steps 302 to 306. Among them:

[0067] Step 302: determine the area to be processed.

[0068] In implementation, distributed network nodes with different functions are constructed in the 6G network. Furthermore, when users communicate based on the 6G network, in order to ensure that the user equipment does not need to frequently perform mobility registration during movement, it is necessary to divide the service area of ​​the 6G network coverage so that in each service area, the movement of the user equipment will not cause mobility registration or switching. Therefore, the area information is obtained through the RAN in the mobile communication system to determine the area to be processed, that is, the area to be divided into service areas.

[0069] Step 304: divide the area to be processed into regions based on the service region division strategy to obtain a plurality of divided service regions.

[0070] The service area division strategy is pre-configured by a target division granularity that matches the regional characteristics of the area to be processed in the distributed nodes, the radio access network RAN, the user equipment or the activity range of the user equipment in the distributed network architecture.

[0071] In implementation, in order to ensure that the service area divided from the area to be processed is not too small, causing the movement of the user equipment to still trigger frequent mobility registration updates, and the divided service area is not too large, causing the paging delay of the user equipment to be long and the paging success rate to be reduced. When the RAN divides the service area of ​​the area to be processed, it will match the corresponding service area division strategy for the area to be processed based on the regional characteristics of the area to be processed. Different service area division strategies are reflected in the different division granularities of the service area. The service area division granularity includes but is not limited to: distributed nodes in a distributed network architecture, wireless access networks, user equipment or user equipment activity range. The essence of RAN selecting an appropriate service area division strategy is to select a service area division strategy corresponding to a matching target division granularity. Furthermore, based on the target division granularity in the service area division strategy, RAN divides the area to be processed into regions to obtain multiple divided service areas.

[0072] Step 306: construct a service area list based on the area information of the multiple service areas.

[0073] The service area list is used to be sent to the user equipment to pre-configure the service area for the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in multiple service areas in the service area list.

[0074] In implementation, RAN builds a service area list based on the regional information of multiple service areas. Specifically, when dividing the service area, network devices corresponding to different division granularities will participate in the division and allocation of the service area according to the different division granularities in the service area division strategy. Then, the RAN to which the current user equipment is connected will receive the regional information of the service area fed back by other network devices in the area to be processed, and then, build a service area list for the regional information of multiple service areas, so that when the user equipment moves in the service area corresponding to the service area list, no mobility registration update will occur.

[0075] In the above-mentioned service area division method, a service area division strategy containing a target division granularity is matched for the area to be processed based on the area characteristics of the area to be processed. The area to be processed is divided into multiple service areas of appropriate sizes through the service area division strategy. This ensures that when the user equipment moves among the multiple service areas in the area to be processed, no mobility registration update and switching will occur, and no large overhead and signaling interaction will be generated due to an excessively large paging range.

[0076] In the following embodiments, the present application uses various different division granularities of the service area division strategy as target division granularities to illustrate the service area division process of the area to be processed, as shown below:

[0077] In a specific embodiment, there are many distributed nodes in the 6G distributed network in the area to be processed, and one RAN can serve multiple distributed nodes at the same time, that is, the RAN can connect to multiple distributed nodes. Therefore, based on the regional characteristics of the area to be processed, one RAN is used as a benchmark, and each distributed node that the RAN can connect to is used as a partition granularity to divide the service area (expressed by FA). That is, when the service area partition strategy matching the area to be processed is a target partition granularity with distributed nodes, the area to be processed is divided based on the service area partition strategy in step 304, and the specific processing process of obtaining the divided multiple service areas is as follows:

[0078] like Figure 4 As shown, Figure 4The service area division strategy based on the distributed node as the target division granularity is used to divide the service area of ​​the area to be processed, and the schematic diagram of the service area division result is determined. Specifically, RAN can serve distributed node 1, distributed node 2, distributed node 3, etc., and the area to be processed is divided into FA1 of distributed node 1, FA2 of distributed node 2, and FA3 of distributed node 3 with the distributed node as the target division granularity. The service area division process specifically includes: when the area division of the area to be processed is performed with the distributed node as the target division granularity, the user equipment accesses the mobile communication network through the RAN, and the RAN selects a distributed node (for example, distributed node 1) from multiple distributed nodes (distributed node 1, distributed node 2, distributed node 3) for the user equipment to access, and at the same time, the RAN informs the remaining distributed nodes (i.e., distributed node 2, distributed node 3) to allocate the service area, and then, the RAN constructs a service area list (represented by FAL) containing the area information of FA1, FA2 and FA3 based on the area information of the service areas divided and allocated by each distributed node. Therefore, when the user equipment moves in the area corresponding to the service area list, no mobility registration update occurs.

[0079] Optionally, the principle for dividing the service area list in this embodiment is: when the current user equipment often moves in the distributed node area of ​​a base station, for example, the user equipment often moves in the area covered by the three distributed nodes, distributed node 1, distributed node 2 and distributed node 3 served by the RAN, then distributed node 1, distributed node 2 and distributed node 3 are divided into one service area list.

[0080] In this embodiment, the division granularity based on the distributed nodes is used as the target division granularity, and the area to be processed is divided into multiple service areas according to each distributed node. The size of the service area is adapted to the regional characteristics of the area to be processed, so as to avoid large overhead and signaling interaction when the user equipment moves in multiple service areas corresponding to the area to be processed.

[0081] In a specific embodiment, there are many distributed nodes in the 6G distributed network in the area to be processed, and one RAN can serve multiple distributed nodes at the same time. Then, based on the regional characteristics of the area to be processed, all distributed nodes that can be connected to one RAN are divided into a service area (FA) with RAN as the target division granularity to perform service area division of the area to be processed. That is, when the service area division strategy matching the area to be processed is pre-configured with a single wireless access network RAN ​​as the target division granularity, the area to be processed is divided based on the service area division strategy in step 304, and the specific processing process of obtaining the divided multiple service areas may include:

[0082] Step 304a: when the base station deployment in the area to be processed meets the first base station distribution condition, the area to be processed is divided into multiple service areas based on a single radio access network RAN ​​in the area to be processed as a division granularity.

[0083] Each radio access network RAN ​​is connected to multiple distributed nodes.

[0084] In implementation, the first base station distribution condition is that the distance between base stations in the area to be processed is within a preset distance interval, or the base station deployment location meets the preset location distribution condition. Further, when the base station deployment in the area to be processed meets the first base station distribution condition, the area to be processed is divided into multiple service areas with a single RAN in the area to be processed as the division granularity. Figure 5 As shown, RAN1 serves distributed node 1, distributed node 2, distributed node 3, etc., and the service area is divided based on a single RAN as the target division granularity, that is, all distributed nodes corresponding to RAN1 are divided into a service area (FA). Figure 5 In the example given in , each RAN in the area to be processed implements the division and allocation of service areas, that is, RAN1 divides distributed node 1, distributed node 2, and distributed node 3 into one FA1; if RAN2 can serve distributed node 4, distributed node 5, and distributed node 6, then RAN2 divides distributed node 4, distributed node 5, and distributed node 6 into one FA2; if RAN3 can serve distributed node 7, distributed node 8, distributed node 9, etc., then RAN3 divides distributed node 7, distributed node 8, and distributed node 9 into one FA3. Thus, the area to be processed is divided into multiple service areas. Furthermore, based on the divided FA1, FA2, and FA3, a service area list FAL can be formed, so that when the user equipment moves in the area corresponding to the service area list, no mobility registration update occurs.

[0085] In this embodiment, the division granularity based on a single RAN is used as the target division granularity, and the area to be processed is divided into multiple service areas according to each distributed node. The size of the service area is adapted to the regional characteristics of the area to be processed, so as to avoid large overhead and signaling interaction when the user equipment moves in multiple service areas corresponding to the area to be processed.

[0086] In one embodiment, Figure 6As shown, in the case where the number of base stations deployed in the 6G distributed network in the area to be processed is large (exceeding the preset number threshold), based on the regional characteristics of the area to be processed, multiple RANs are used as the target division granularity, and the distributed nodes served by multiple RANs are divided into one service area, that is, the service area division strategy is pre-configured with multiple wireless access networks RAN as the division granularity, then in step 304, the area to be processed is divided based on the service area division strategy, and the specific processing process of obtaining the divided multiple service areas may include steps 602 to 604. Among them:

[0087] Step 602: When the base station deployment in the area to be processed meets the second base station distribution condition, a plurality of wireless access networks meeting the preset physical distance condition are aggregated into one division granularity.

[0088] In implementation, the second base station distribution condition is that the distance between base stations in the area to be processed is less than the first preset distance threshold (i.e., the deployment of base stations is relatively dense). The physical distance condition is that the physical distance between RANs is less than the second preset distance threshold. Furthermore, when the base station deployment in the area to be processed meets the second base station distribution condition, the RAN aggregates multiple radio access network RANs that meet the preset physical condition into one partition granularity, that is, multiple RANs that meet the physical distance condition in the area to be processed are used as the partition granularity for partitioning one service area.

[0089] Step 604: divide the area to be processed into multiple service areas based on the aggregated division granularity.

[0090] In implementation, RAN divides the area to be processed into multiple service areas based on the aggregated division granularity. For example, RAN1 serves distributed nodes 1 and 2, RAN2 serves distributed nodes 3 and 4, and the physical distance between RAN1 and RAN2 is relatively close, that is, the preset physical distance condition is met, such as Figure 7 As shown, all distributed nodes served by RAN1 and RAN2 can be divided into a service area FA1. Since RAN3 is far away from RAN1 and RAN2 (i.e., the preset physical distance condition is not met), distributed nodes 5, distributed nodes 6 and distributed nodes 7 served by RAN3 can be divided into an independent service area FA2. Thus, RAN1, RAN2 and RAN3 divide the area to be processed into multiple service areas. Furthermore, for the multiple service areas divided from the area to be processed, the RAN (the RAN currently connected to the user equipment) can construct a service area list for the area information of the multiple divided service areas, so that when the user equipment moves in the area corresponding to the service area list, no mobility registration update occurs.

[0091] Optionally, the principle for dividing the service area list in this embodiment is: if the area to be processed includes a city center with a relatively high population density (more base stations deployed) and a suburb with a relatively low population density (fewer base stations deployed), and the base stations therein are far apart, then the distributed nodes covered by the base stations deployed in the city center with a relatively high population density are divided into one FA1, and the distributed nodes covered by the base stations deployed in the suburbs with a relatively low population density are divided into one FA2.

[0092] In this embodiment, based on the division granularity of multiple RANs as the target division granularity, the area to be processed is divided into multiple service areas according to each distributed node, and the size of the service area is adapted to the regional characteristics of the area to be processed, so as to avoid large overhead and signaling interaction when the user equipment moves in multiple service areas corresponding to the area to be processed.

[0093] In one embodiment, Figure 8 As shown, the service area division is not limited to the distributed nodes served by the RAN or a single distributed node. The mobile communication system can also divide the service area according to the network slice type carried in the initial registration of the user equipment. That is, when the service area division strategy matching the area to be processed is pre-configured with the user equipment as the target division granularity, then in step 304, the area to be processed is divided based on the service area division strategy, and the multiple service areas after division are obtained, including steps 802 to 804. Among them:

[0094] Step 802, obtain the network slice information carried by the user equipment during initial registration.

[0095] Among them, the network slice information includes the network slice types supported by the user equipment.

[0096] In implementation, RAN obtains the network slice type carried by the user equipment during initial registration, namely, Request NSSAI (Single Network Slice Selection Assistance Information).

[0097] Step 804: Based on the network slice information, the distributed nodes supporting the same network slice type in the area to be processed are divided into the same service area to obtain multiple divided service areas.

[0098] In implementation, RAN divides the distributed nodes supporting the same network slice type in the area to be processed into the same service area based on the network slice information, and obtains multiple service areas after division, so that the mobility registration or switching process can be reduced during the movement of user equipment. Fig. 9As shown, RAN1 serves distributed nodes 1 and 3, RAN2 serves distributed nodes 2 and 4, and RAN3 serves distributed nodes 5, 6, and 7. Since distributed nodes 1 and 2 support the same NSSAI, they are divided into FA1. Similarly, distributed nodes 3, 4, and 5 support the same NSSAI, so they are divided into FA2. Distributed nodes 6 and 7 support the same NSSAI, so they are divided into FA3, and multiple service areas FA1, FA2, and FA3 are obtained after division. Furthermore, multiple service areas FA1, FA2, and FA3 form a service area list FAL, that is, FA list.

[0099] In this embodiment, the division granularity based on the user equipment is used as the target division granularity, and the area to be processed is divided into multiple service areas according to the network slice type of the user equipment. The size of the service area is adapted to the regional characteristics of the area to be processed, so as to avoid large overhead and signaling interaction when the user equipment moves within the multiple service areas corresponding to the area to be processed.

[0100] In one embodiment, the range in which the user equipment often moves in the area to be processed is also determinable. Based on the regional characteristics of the area to be processed, the mobile range of the user equipment is used as the target division granularity, and the service area is divided into service areas in the area to be processed. That is, the service area division strategy is pre-set with the activity range of the user equipment as the division granularity. In step 304, the area to be processed is divided into regions based on the service area division strategy. The specific processing process of obtaining the divided multiple service areas may include:

[0101] Step 304d, based on the user equipment activity range, divide each distributed node within the user equipment activity range in the area to be processed into one type of service area, and divide the distributed nodes outside the user equipment activity range into another service area, thereby obtaining a plurality of divided service areas.

[0102] In implementation, based on the user equipment activity range, RAN divides each distributed node within the user equipment activity range in the area to be processed into one type of service area, and divides the distributed nodes outside the user equipment activity range into another service area, thereby obtaining multiple divided service areas. Fig.10As shown, RAN1 can serve distributed node 1, distributed node 2, distributed node 3, etc., and the user equipment often moves in the range of distributed node 1 and distributed node 2, so distributed node 1 is FA1 and distributed node 2 is FA2. In addition, in order to avoid frequent mobility registration updates during the user's movement, FA1 and FA2 can form a FAL, that is, a FA list. FA3 can be divided into other FALs, that is, belong to other FA lists. Thus, the area to be processed is divided into multiple service areas.

[0103] In this embodiment, the area to be processed is divided into multiple service areas based on the activity range of the user equipment as the target division granularity. The size of the service area is adapted to the regional characteristics of the area to be processed, so as to avoid large overhead and signaling interaction when the user equipment moves in multiple service areas corresponding to the area to be processed.

[0104] In one embodiment, after pre-dividing the service areas of the areas to be processed, when the user equipment performs services such as communication in a certain area, after step 306, the method further includes:

[0105] Step 307: In response to the mobility registration update request of the user equipment, a service area list corresponding to the area is obtained, and the service area list is sent to the user equipment.

[0106] In implementation, the RAN responds to the mobility registration update request of the user equipment, establishes a communication connection with the user equipment, obtains a service area list (FAL) corresponding to the area where the user equipment is located, and sends the service area list to the user equipment, so that after receiving the service area list, the user equipment can perform mobile communication according to the configuration of each service area in the service area list.

[0107] In this embodiment, when the user equipment performs communication services in a mobile communication system including a distributed network structure, it can be based on the service area list issued by the wireless access network, so that when the user equipment moves within each service area included in the service area list, the user equipment does not need to perform mobility registration update, thereby reducing the resource overhead and signaling interaction of the user equipment.

[0108] In one embodiment, for different service area division strategies (i.e., different service area division granularities), the allocation of service areas is completed by different network nodes. For example, in a service area division strategy with RAN as the service area division granularity, the RAN to which the current user equipment is connected will receive the area information of the service areas divided by other RANs in the to-be-processed area. In a service area division strategy with distributed nodes as the service area division granularity, the RAN to which the user equipment is connected will receive the area information of the service areas divided by the to-be-processed area and other distributed nodes in the area. Furthermore, the process of forming the service area list also differs based on different service area division strategies. Specifically, Fig.11 As shown, the specific processing process of step 307 is divided into:

[0109] Step 1102, when the area is divided by the distributed nodes in the distributed network architecture, or by the activity range of the user equipment, in response to the mobility registration update request of the user equipment, receiving the area information of multiple service areas fed back by the distributed nodes in the area, and constructing a service area list corresponding to the area based on the area information of the multiple service areas.

[0110] In implementation, when the area is divided based on the distributed nodes in the distributed network architecture or the activity range of the user equipment, the service area is allocated by the distributed nodes in the area, and the RAN currently connected to the user equipment responds to the mobility registration update request of the user equipment, receives the area information of the multiple divided service areas fed back by the distributed nodes in the area, and builds a service area list for the area based on the area information of the multiple service areas.

[0111] Step 1104: In the area where the user equipment is located, a single radio access network RAN ​​is used as a division granularity, or multiple radio access networks are aggregated as a division granularity. In response to a mobility registration update request of the user equipment, area information of multiple service areas fed back by each radio access network RAN ​​in the area where the user equipment is located is received, and based on the area information of the multiple service areas, a service area list corresponding to the area where the user equipment is located is constructed.

[0112] In implementation, when the area is divided by a single radio access network or multiple radio access networks are aggregated into one division granularity, each radio access network RAN ​​in the area allocates service areas, and the radio access network RAN ​​currently connected to the user equipment responds to the mobility registration update request of the user equipment, receives the area information of multiple service areas fed back by other radio access networks in the area, and then builds a service area list for the area based on the area information of the multiple service areas.

[0113] In this embodiment, for different service area division strategies, different network nodes complete the division of service areas, so that when the user equipment moves within each service area included in the service area list, it is not necessary to perform frequent mobility registration updates, thereby reducing the resource overhead and signaling interaction of the user equipment.

[0114] In another embodiment, a service area division method is provided, the method is applied to a user equipment, such as Fig.12 As shown in the figure, the specific processing process of this method is:

[0115] Step 1202: Send a mobility registration update request to the radio access network RAN, and receive a service area list sent by the radio access network RAN.

[0116] Among them, the service area list includes regional information of multiple service areas; the multiple service areas are obtained by dividing the area to be processed where the user equipment is located based on the service area division strategy, and the service area division strategy is pre-configured by the distributed nodes in the distributed network architecture, the wireless access network RAN, the user equipment or the user equipment activity range with the target division granularity matching the regional characteristics of the area to be processed.

[0117] In implementation, in the process of realizing communication services, the user equipment sends a mobility registration update request to a wireless access network RAN ​​in the area that meets the access conditions. In response to the mobility registration update request, the wireless access network RAN ​​will send a service area list, so that the user equipment can receive the service area list to perform mobility communication. The specific process of constructing the service area list has been described in the above embodiment and will not be repeated here.

[0118] Step 1204: When the user equipment moves between multiple service areas, based on the area information of the multiple service areas, a configuration instruction is sent to the distributed nodes in the multiple service areas to complete the mobility processing of the user equipment between the multiple service areas.

[0119] In implementation, when a user device moves between multiple service areas, the user device sends configuration instructions to distributed nodes in the area based on the area information of multiple service areas provided by the service area list, thereby realizing mobility communication of the user device in the area based on the alternating service of the distributed nodes.

[0120] In this embodiment, since the division granularity of the service area list is adapted to the regional characteristics of the area where the user equipment is located, mobility services are provided to the user equipment based on the service areas divided in the service area list, reducing the number of mobility registration updates of the user equipment when performing mobile communications, thereby reducing the resource overhead and signaling interaction of the user equipment.

[0121] In one embodiment, in order to further save the resource overhead of the user equipment, when the user equipment moves between various service areas, the RAN may also pre-configure the user equipment based on the service area list to implement alternating services in various service areas, thereby reducing the interaction of related handover signaling between the user equipment and the network elements in the service area, such as Fig.13 As shown, the specific processing process of step 1202 includes:

[0122] Step 1302: When the user equipment moves from a first service area to a second service area among multiple service areas, a deactivation instruction is sent to a distributed node in the first service area, and an activation instruction is sent to a distributed node in the second service area.

[0123] In implementation, after receiving the pre-configuration of the area in which the user equipment is located from the RAN, it is not necessary to perform the relevant switching signaling interaction with the network elements in the service area, but it can directly activate the distributed nodes in the configured service area to achieve the replacement of the service area, so as to replace the traditional selection access process through complex signaling interaction and ensure the continuity of the service. Specifically, taking the user equipment moving from the first service area to the second service area among multiple service areas as an example, when the user equipment enters the second service area, it sends an activation instruction to the distributed nodes in the second service area to ensure that the distributed nodes in the second service area can successfully replace the distributed nodes in the first service area and continue to carry out communication services, and the user equipment sends a deactivation instruction to the distributed nodes in the first service area to adjust the distributed nodes in the first service area to an inactive state to save resource overhead.

[0124] Step 1304: Transfer the service of the user equipment from the distributed node in the first service area to the distributed node in the second service area.

[0125] In implementation, the user equipment transfers the service from the distributed node in the first service area to the distributed node in the second service area, thereby realizing the transfer of communication service during the movement.

[0126] In this embodiment, the user equipment is pre-configured through the area information of multiple service areas provided in the service area list. Then, during the service execution process, the distributed nodes in the configured service area can be directly activated or deactivated, replacing the traditional selection access process through complex signaling interaction, reducing the problem of service continuity interruption and ensuring service continuity.

[0127] Optionally, during the process of the user equipment executing the service, in response to the service area list update or abnormal situation, the user equipment can send a reconfiguration instruction to each distributed node in the service area to reallocate the distributed nodes in each service area to avoid the user equipment performing reconfiguration operations through complex signaling interactions.

[0128] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0129] Based on the same inventive concept, the embodiment of the present application also provides a service area division device for implementing the service area division method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more service area division device embodiments provided below can refer to the limitations of the service area division method above, and will not be repeated here.

[0130] In one embodiment, Fig.14 As shown, a service area division device 1400 is provided, comprising: a determination module 1401, a division module 1402 and a construction module 1403, wherein:

[0131] A determination module 1401 is used to determine an area to be processed;

[0132] A partitioning module 1402 is used to partition the area to be processed based on a service area partitioning strategy to obtain a plurality of service areas after partitioning; the service area partitioning strategy is pre-configured by a target partitioning granularity matching the area characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment;

[0133] The construction module 1403 is used to construct a service area list based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area of ​​the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas.

[0134] In one of the embodiments, the service area division strategy is pre-configured with a single wireless access network RAN ​​as the target division granularity, and the division module 1402 is specifically used to divide the area to be processed into multiple service areas with a single wireless access network RAN ​​in the area to be processed as the division granularity when the base station deployment in the area to be processed meets the first base station distribution condition; each of the wireless access network RAN ​​is connected to multiple distributed nodes.

[0135] In one of the embodiments, the service area partitioning strategy is pre-configured with multiple radio access networks RAN as the target partitioning granularity, and the partitioning module 1402 is specifically used to aggregate multiple radio access networks that meet the preset physical distance condition into one partitioning granularity when the base station deployment in the to-be-processed area meets the second base station distribution condition;

[0136] Based on the aggregated division granularity, the area to be processed is divided into a plurality of service areas.

[0137] In one of the embodiments, the service area division strategy is pre-set with the user equipment as the target division granularity, and the division module 1402 is specifically used to obtain the network slice information carried by the user equipment when it is initially registered; the network slice information includes the network slice type supported by the user equipment;

[0138] Based on the network slice information, the distributed nodes supporting the same network slice type in the area to be processed are divided into the same service area to obtain multiple divided service areas.

[0139] In one of the embodiments, the service area division strategy is pre-set with the user equipment as the target division granularity, the service area division strategy is pre-set with the user equipment activity range as the target division granularity, and the area to be processed is divided based on the service area division strategy to obtain multiple service areas after division, including:

[0140] Based on the user equipment activity range, each distributed node within the user equipment activity range in the area to be processed is divided into one type of service area, and the distributed nodes outside the user equipment activity range are divided into another service area, thereby obtaining a plurality of divided service areas.

[0141] In one embodiment, the apparatus 1400 further includes:

[0142] The transceiver module is used to respond to the mobility registration update request of the user equipment, obtain the service area list corresponding to the area where the user equipment is located, and send the service area list to the user equipment.

[0143] In one of the embodiments, the transceiver module is specifically used to receive the area information of the multiple service areas fed back by each of the distributed nodes in the area in response to the mobility registration update request of the user equipment when the area is divided by each distributed node in the distributed network architecture or by the activity range of the user equipment, and construct a service area list corresponding to the area based on the area information of the multiple service areas;

[0144] In the area where the user equipment is located, a single radio access network RAN ​​is used as a division granularity, or multiple radio access networks are aggregated as a division granularity, in response to a mobility registration update request of the user equipment, area information of the multiple service areas fed back by each of the radio access networks RAN in the area where the user equipment is located is received, and based on the area information of the multiple service areas, a service area list corresponding to the area where the user equipment is located is constructed.

[0145] In one embodiment, Fig.15 As shown, a service area division device 1500 is provided, and the device 1500 includes:

[0146] A receiving module 1501 is configured to send a mobility registration update request to a radio access network RAN, and receive a service area list sent by the radio access network RAN; the service area list includes area information of multiple service areas; the multiple service areas are obtained by dividing the area to be processed where the user equipment is located based on a service area division strategy, and the service area division strategy is pre-configured by a target division granularity that matches the area characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment, or an activity range of the user equipment;

[0147] The sending module 1502 is used to send configuration instructions to the distributed nodes in the multiple service areas based on the area information of the multiple service areas when the user equipment moves between the multiple service areas, so as to complete the mobility processing of the user equipment between the multiple service areas.

[0148] In one of the embodiments, the sending module 1502 is configured to send a deactivation instruction to a distributed node in the first service area and an activation instruction to a distributed node in the second service area when the user equipment moves from a first service area to a second service area among the multiple service areas;

[0149] The service of the user equipment is transferred from the distributed node in the first service area to the distributed node in the second service area.

[0150] Each module in the above service area division device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a processor in the form of hardware, or can be stored in a memory in a processor in the form of software, so that the processor can call and execute the operations corresponding to each module.

[0151] It should be noted here that the above-mentioned device provided in the embodiment of the present invention can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0152] It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0153] If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the method described in each embodiment of the present application.

[0154] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0155] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0156] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0157] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A service area division method, characterized in that: The method is applied to a radio access network RAN, and the method comprises: Identify the area to be treated; The area to be processed is divided into regions based on a service area division strategy to obtain a plurality of divided service areas; the service area division strategy is pre-configured by a target division granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment; A service area list is constructed based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area for the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas in the service area list.

2. The method according to claim 1, characterized in that The service area division strategy is pre-configured with a single radio access network RAN ​​as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain a plurality of divided service areas, including: When the base station deployment in the area to be processed meets the first base station distribution condition, the area to be processed is divided into multiple service areas based on a single radio access network RAN ​​in the area to be processed as a division granularity; each of the radio access networks RAN is connected to multiple distributed nodes.

3. The method according to claim 1, characterized in that The service area division strategy is pre-configured with multiple radio access networks RAN as the target division granularity, and the area to be processed is divided into multiple service areas based on the service area division strategy, including: When the base station deployment in the to-be-processed area meets the second base station distribution condition, aggregating multiple wireless access networks that meet the preset physical distance condition into one partition granularity; Based on the aggregated division granularity, the area to be processed is divided into a plurality of service areas.

4. The method according to claim 1, characterized in that: The service area division strategy is pre-set with the user equipment as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain a plurality of divided service areas, including: Obtaining network slice information carried by the user equipment when initially registered; the network slice information includes network slice types supported by the user equipment; Based on the network slice information, the distributed nodes supporting the same network slice type in the area to be processed are divided into the same service area to obtain multiple divided service areas.

5. The method according to claim 1, characterized in that The service area division strategy is pre-set with the activity range of the user equipment as the target division granularity, and the area to be processed is divided into regions based on the service area division strategy to obtain a plurality of divided service areas, including: Based on the user equipment activity range, each distributed node within the user equipment activity range in the area to be processed is divided into one type of service area, and the distributed nodes outside the user equipment activity range are divided into another service area, thereby obtaining a plurality of divided service areas.

6. The method according to claim 1, characterized in that After constructing the service area list based on the area information of the multiple service areas, the method further includes: In response to the mobility registration update request of the user equipment, a service area list corresponding to the area is acquired, and the service area list is sent to the user equipment.

7. The method according to claim 6, characterized in that The step of obtaining, in response to the mobility registration update request of the user equipment, a service area list corresponding to the area in which the user equipment is located, comprises: When the area is divided by each distributed node in the distributed network architecture or by the activity range of the user equipment, in response to a mobility registration update request of the user equipment, receiving the area information of the multiple service areas fed back by each of the distributed nodes in the area, and constructing a service area list corresponding to the area based on the area information of the multiple service areas; In the area where the user equipment is located, a single radio access network RAN ​​is used as a division granularity, or multiple radio access networks are aggregated as a division granularity, in response to a mobility registration update request of the user equipment, area information of the multiple service areas fed back by each of the radio access networks RAN in the area where the user equipment is located is received, and based on the area information of the multiple service areas, a service area list corresponding to the area where the user equipment is located is constructed.

8. A service area division method, characterized in that: The method is applied to a user equipment, and the method comprises: Sending a mobility registration update request to a radio access network RAN, and receiving a service area list sent by the radio access network RAN; the service area list includes area information of multiple service areas; the multiple service areas are obtained by dividing the area to be processed where the user equipment is located based on a service area division strategy, and the service area division strategy is pre-configured by a target division granularity that matches the area characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment, or an activity range of the user equipment; When the user equipment moves between the multiple service areas, a configuration instruction is sent to the distributed nodes in the multiple service areas based on the area information of the multiple service areas to complete the mobility processing of the user equipment between the multiple service areas.

9. The method according to claim 8, characterized in that When the user equipment moves between the multiple service areas, sending configuration instructions to distributed nodes in the multiple service areas based on the area information of the multiple service areas includes: When the user equipment moves from a first service area to a second service area among the multiple service areas, sending a deactivation instruction to a distributed node in the first service area, and sending an activation instruction to a distributed node in the second service area; The service of the user equipment is transferred from the distributed node in the first service area to the distributed node in the second service area.

10. A service area division device, characterized in that: The device comprises: A determination module, used for determining the area to be processed; A partitioning module, configured to partition the area to be processed based on a service area partitioning strategy to obtain a plurality of service areas after partitioning; the service area partitioning strategy is pre-configured by a target partitioning granularity matching the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user equipment or an activity range of a user equipment; A construction module is used to construct a service area list based on the area information of the multiple service areas; the service area list is used to send to the user equipment to pre-configure the service area of ​​the user equipment, indicating that no mobility registration update and switching will occur when the user equipment moves in the multiple service areas.

11. A service area division system, characterized in that: The system comprises: A radio access network RAN ​​is used to determine an area to be processed; divide the area to be processed based on a service area division strategy to obtain a plurality of divided service areas; and construct a service area list based on the regional information of the plurality of service areas; the service area division strategy is pre-configured by a target division granularity that matches the regional characteristics of the area to be processed in a distributed node in a distributed network architecture, a radio access network RAN, a user device, or an activity range of a user device; The user equipment is used to send a mobility registration update request to the radio access network RAN, and receive a service area list sent by the radio access network RAN.

12. The system according to claim 11, characterized in that The system further comprises: A distributed node, used for allocating a service area to the user equipment when the service area division strategy takes the distributed nodes in the distributed network architecture as the target division granularity, if the user equipment moves between the multiple service areas; The area information of the allocated service areas is sent to the radio access network RAN, so that the service area list including the area information of each allocated service area is sent to the user equipment through the radio access network RAN.

13. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a program, and the program is used to cause the processor to execute the method according to any one of claims 1 to 7 or 8 to 9.

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