CN110225563B - Network registration method and equipment - Google Patents

Abstract

The embodiment of the application provides a method and equipment for network registration, which relate to the technical field of communication, and a terminal device can determine a single network slice selection auxiliary information S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to a routing strategy, each application in an application list and the priority of each application, and then determine the priority of a first public land mobile network VPLMN according to first information and the priority of each S-NSSAI in the S-NSSAI set, so that the terminal device can associate the priority of the application with the priority of the VPLMN, and further register the VPLMN according to the priority of the application, so that a network registered by the terminal device can meet the requirement of high-priority applications in the application list as much as possible, and user experience is improved.

Description

Network registration method and equipment

The priority of the chinese patent application entitled "a network slice-based network searching method and apparatus" filed by the national intellectual property office on 31/1/2019 under the application number 201910100537.8, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and a device for network registration.

Background

At present, a terminal device registers to a Visited Public Land Mobile Network (VPLMN) when roaming in a certain country or area, and then determines whether the currently registered VPLMN is a Public Land Mobile Network (PLMN) of the highest priority in the country or area according to an operator controlled public land mobile network (OPLMN) list, if not, the terminal device periodically attempts to search for a PLMN of high priority, and after the search is successful, the terminal device attempts to initiate registration on the PLMN of high priority.

However, the OPLMNs in the OPLMN lists configured by different operators in Universal Subscriber Identity Module (USIM) cards have a large difference in the number of OPLMNs, and in some areas, the OPLMNs are not configured or are configured very little, and in the OPLMN lists, the order of the OPLMNs is completely determined by home PLMNs (home PLMNs, HPLMNs) according to subscription information between the operators, so that the terminal device can only register the VPLMNs according to the subscription information between the operators.

Disclosure of Invention

According to the network registration method and device, the terminal device can associate the priority of the application with the priority of the VPLMN, and then the terminal device can register the VPLMN according to the priority of the application, so that the network registered by the terminal device can meet the requirement of high-priority application in the application list as far as possible, and user experience is improved.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an embodiment of the present application provides a method for network registration, where the method includes: the terminal equipment determines the priority of each application in an application list according to the first parameter, wherein the application list comprises at least one application; the terminal equipment determines a single network slice selection auxiliary information S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to a routing strategy URSP, each application in the application list and the priority of each application; the terminal equipment determines the priority of a first public land mobile network (VPLMN) according to first information and the priority of each S-NSSAI in the S-NSSAI set, wherein the first information is configuration network slice selection auxiliary information NSSAI of the first VPLMN.

In the technical scheme provided by the first aspect, the terminal device may determine the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set through the URSP, each application in the application list, and the priority of each S-NSSAI in the S-NSSAI set, and then determine the priority of the VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set, so that the terminal device may associate the priority of the application with the priority of the VPLMN, and further the terminal device may register the VPLMN according to the priority of the application, so that a network registered by the terminal device may meet the requirement of a high-priority application in the application list as much as possible, and user experience is improved.

With reference to the first aspect, in a first possible implementation manner, the terminal device determines a priority of a second VPLMN according to second information and a priority of each S-NSSAI in the S-NSSAI set, where the second information is a configured NSSAI of the second VPLMN; and if the priority of the second VPLMN is higher than that of the first VPLMN, the terminal equipment sends a registration request message to the network equipment, wherein the registration request message is used for registering the second VPLMN. Based on the scheme, after the terminal equipment determines the priority of the VPLMN according to the priority applied in the application list, the VPLMN with high priority is registered.

With reference to the first aspect and the first possible implementation manner of the first aspect, in a second possible implementation manner, the first information includes mapping S-NSSAI; the terminal device determines the priority of the first VPLMN according to the first information and the priority of each S-NSSAI in the set of S-NSSAIs, including: the terminal equipment acquires a first intersection set, wherein the first intersection set comprises S-NSSAIs which are the same as the mapping S-NSSAIs included by the first information in the S-NSSAI set; and the terminal equipment carries out summation calculation on the priority of the S-NSSAI in the first intersection to obtain the priority of the first VPLMN. Based on the scheme, the terminal equipment can determine the priority of the first VPLMN according to the priority of the S-NSSAI which is the same as the mapping S-NSSAI included by the first information in the S-NSSAI included by the S-NSSAI set.

With reference to the first possible implementation manner of the first aspect and the second possible implementation manner of the first aspect, in a third possible implementation manner, the second information includes a mapping S-NSSAI; the terminal device determines the priority of the second VPLMN according to the second information and the priority of each S-NSSAI in the set of S-NSSAIs, including: the terminal equipment acquires a second intersection, wherein the second intersection comprises the S-NSSAI which is the same as the mapping S-NSSAI included by the second information in the S-NSSAI included by the S-NSSAI set; and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the second intersection to obtain the priority of the second VPLMN. Based on the scheme, the terminal equipment can determine the priority of the second VPLMN according to the priority of the S-NSSAI which is the same as the mapping S-NSSAI included by the second information in the S-NSSAI included by the S-NSSAI set.

With reference to the first aspect, in a fourth possible implementation manner, the determining, by the terminal device, a single network slice selection auxiliary information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the routing policy URSP, each application in the application list, and the priority of each application includes: the terminal equipment adds all S-NSSAIs included by the URSP into an S-NSSAI set; and the terminal equipment determines the priority of each S-NSSAI according to the application priority corresponding to each S-NSSAI in the S-NSSAI set. Based on the scheme, the terminal equipment can add the S-NSSAI included by the URSP into the S-NSSAI set, and determine the priority of each S-NSSAI in the S-NSSAI set according to the priority of the application corresponding to each S-NSSAI in the S-NSSAI set.

With reference to the first aspect and various possible implementation manners of the first aspect, in a fifth possible implementation manner, the terminal device receives third information sent by a network device, where the third information is used to instruct the terminal device to change the URSP. Based on the scheme, the terminal device can update the URSP stored on the terminal device according to the third information and determine the priority of the VPLM again.

With reference to the first aspect and various possible implementation manners of the first aspect, in a sixth possible implementation manner, the first parameter includes a frequency of use of each application in the application list and/or a type of each application in the application list. Based on this scheme, the terminal device may determine the priority of each application in the application list according to the frequency of use of each application in the application list and/or the type of each application in the application list.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, the third possible implementation manner of the first aspect, the fifth possible implementation manner of the first aspect, and the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the URSP includes a plurality of URSP rules, each of the URSP rules includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI; the terminal device determines an S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the URSP, each application in the application list, and the priority of each application, and includes: step a: the terminal equipment selects a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions; step b: the terminal equipment traverses the selected first routing description, selects a temporary S-NSSAI from each first routing description, and determines the priority of the temporary S-NSSAI according to the priority of the application corresponding to the temporary S-NSSAI; step c: the terminal equipment adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs; step d: the terminal equipment judges whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, the steps a-d are executed until the unselected routing description does not exist in the URSP; step e: the terminal equipment determines the priority of each S-NSSAI in the S-NSSAI set according to the sequence of each S-NSSAI in the S-NSSAI set. Based on the scheme, the terminal equipment selects the first routing description corresponding to each application included in the application list, then selects the temporary S-NSSAI corresponding to each first routing description and determines the priority of each temporary S-NSSAI, and finally adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs, so that the priority of each S-NSSAI in the S-NSSAI set and the S-NSSAI set can be determined.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the temporary S-NSSAI is an S-NSSAI with the largest fan-out in the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, where the fan-out of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI. Based on this scheme, the terminal device may select a temporary S-NSSAI based on the fan-out of the S-NSSAI.

In a second aspect, an embodiment of the present application provides a communication apparatus, including: a processing module; the processing module is used for determining the priority of each application in an application list according to the first parameter, wherein the application list comprises at least one application; the processing module is further configured to determine a single network slice selection auxiliary information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the routing policy URSP, each application in the application list, and a priority of each application; the processing module is further configured to determine a priority of the first public land mobile network VPLMN according to the first information and a priority of each S-NSSAI in the set of S-NSSAIs, where the first information is configuration network slice selection assistance information NSSAI of the first VPLMN.

In the technical solution provided in the second aspect, the communication device may determine, through the URSP, each application in the application list and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, and then determine, according to the first information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the VPLMN, so that the communication device may associate the priority of the application with the priority of the VPLMN, and further the communication device may register the VPLMN according to the priority of the application, so that a network registered by the communication device may meet the requirement of a high-priority application in the application list as much as possible, and user experience is improved.

With reference to the second aspect, in a first possible implementation manner, the communication apparatus further includes: a sending module; the processing module is further configured to determine a priority of a second VPLMN according to second information and a priority of each S-NSSAI in the S-NSSAI set, where the second information is configured NSSAI of the second VPLMN; the sending module is configured to send a registration request message to the network device if the priority of the second VPLMN is higher than the priority of the first VPLMN, where the registration request message is used to register the second VPLMN. Based on the scheme, the communication device registers the VPLMN with high priority after determining the priority of the VPLMN according to the priority applied in the application list.

With reference to the second aspect and the first possible implementation manner of the second aspect, in a second possible implementation manner, the first information includes mapping S-NSSAI; the processing module is further specifically configured to obtain a first intersection, where the first intersection includes S-NSSAIs that are the same as the mapping S-NSSAI included in the first information, in the S-NSSAIs included in the S-NSSAI set; the processing module is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the first aggregation to obtain the priority of the first VPLMN. Based on this scheme, the communication device can determine the priority of the first VPLMN according to the priority of the S-NSSAI in the S-NSSAI included in the set of S-NSSAIs, which is the same as the mapped S-NSSAI included in the first information.

With reference to the first possible implementation manner of the second aspect and the second possible implementation manner of the second aspect, in a third possible implementation manner, the second information includes a mapping S-NSSAI; the processing module is further specifically configured to obtain a second intersection, where the second intersection includes S-NSSAIs included in the S-NSSAI set, and the S-NSSAIs are mapped to the same S-NSSAI included in the second information; the processing module is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the second aggregation to obtain the priority of the second VPLMN. Based on this scheme, the communication device can determine the priority of the second VPLMN according to the priority of the S-NSSAI in the S-NSSAI included in the set of S-NSSAIs, which is the same as the mapped S-NSSAI included in the second information.

With reference to the second aspect, in a fourth possible implementation manner, the processing module is specifically configured to add all S-NSSAIs included in the URSP to the S-NSSAI set; the processing module is further specifically configured to determine, by the communications device, a priority of each S-NSSAI in the S-NSSAI set according to the priority of the application corresponding to each S-NSSAI. Based on the scheme, the communication device can add the S-NSSAI included by the URSP into the S-NSSAI set and determine the priority of each S-NSSAI in the S-NSSAI set according to the priority of the application corresponding to each S-NSSAI in the S-NSSAI set.

With reference to the second aspect and various possible implementation manners of the second aspect, in five possible implementation manners, the communication apparatus further includes: a receiving module; the receiving module is configured to receive third information sent by the network device, where the third information is used to instruct the communication apparatus to change the URSP. Based on this scheme, the communication device can update the URSP stored on the communication device based on the third information and re-prioritize the VPLM.

With reference to the second aspect and various possible implementation manners of the second aspect, in six possible implementation manners, the first parameter includes a frequency of use of each application in the application list and/or a type of each application in the application list. Based on this scheme, the communication apparatus can determine the priority of each application in the application list according to the frequency of use of each application in the application list and/or the type of each application in the application list.

With reference to the second aspect, the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, the fifth possible implementation manner of the second aspect, and the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner, the URSP includes a plurality of URSP rules, each of the URSP rules includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI; the processing module is specifically used for executing the steps a, b, c, d and e; wherein the step a is as follows: selecting a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions; the step b is as follows: traversing the selected first routing description, selecting a temporary S-NSSAI from each first routing description, and determining the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI; the step c is as follows: adding all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs; the step d is as follows: judging whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, executing the steps a-d until the unselected routing description does not exist in the URSP; the step e is as follows: the priority of each S-NSSAI in the set of S-NSSAIs is determined according to the order of each S-NSSAI in the set of S-NSSAIs. Based on the scheme, the communication device can determine the priority of each S-NSSAI in the S-NSSAI set and the S-NSSAI set by selecting the first routing description corresponding to each application included in the application list, then selecting the temporary S-NSSAI corresponding to each first routing description, determining the priority of each temporary S-NSSAI, and finally adding all temporary S-NSSAIs into the S-NSSAI set according to the priority of the temporary S-NSSAIs.

With reference to the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner, the temporary S-NSSAI is an S-NSSAI with the largest fan-out in the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, where the fan-out of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI. Based on this scheme, the communication device may select the temporary S-NSSAI based on the fan-out of S-NSSAI.

In a third aspect, an embodiment of the present application provides a communication apparatus, which may be a terminal device or a chip or a system on a chip in the terminal device. The communication apparatus may implement the functions performed by the terminal device in the first aspect or any embodiment of the first aspect, where the functions may be implemented by hardware, such as: in one possible design, the communication device may include: a processor and a communication interface. Such as: and the processor is used for determining the priority of each application in the application list according to the first parameter, determining the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to the URSP, each application in the application list and the priority of each application, and finally determining the priority of the first VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set.

With reference to the third aspect, in yet another possible design, the communication device of the third aspect may further include a memory for storing computer-executable instructions and data necessary for the communication device. The processor executes the computer executable instructions stored by the memory when the communication device is operating to cause the communication device to perform a network registration method as described in the first aspect or any one of the possible designs of the first aspect.

In a fourth aspect, the present application provides a system-on-chip, which can be applied in a communication device, the system-on-chip comprising: a processor; the processor is configured to determine a priority of each application in an application list according to a first parameter, wherein the application list comprises at least one application; the processor is further configured to determine a single network slice selection assistance information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the routing policy URSP, each application in the application list, and a priority of each application; the processor is further configured to determine a priority of a first public land mobile network, VPLMN, according to first information and a priority of each S-NSSAI in the set of S-NSSAIs, wherein the first information is configuration network slice selection assistance information, NSSAI, of the first VPLMN.

In the technical scheme provided by the fourth aspect, the system chip may determine the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to the URSP, each application in the application list, and the priority of each S-NSSAI in the S-NSSAI set, and then determine the priority of the VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set, so that the system chip may associate the priority of the application with the priority of the VPLMN, and further the system chip may register the VPLMN according to the priority of the application, so that a network registered by the system chip may meet the requirement of the high-priority application in the application list as much as possible, and user experience is improved.

With reference to the fourth aspect, in a first possible implementation manner, the system chip further includes: a communication interface; the processor is further configured to determine a priority of a second VPLMN according to second information and a priority of each S-NSSAI in the set of S-NSSAIs, where the second information is a configured NSSAI of the second VPLMN; the communication interface is configured to send a registration request message to the network device if the priority of the second VPLMN is higher than the priority of the first VPLMN, where the registration request message is used to register the second VPLMN. Based on the scheme, after the system chip determines the priority of the VPLMN according to the priority applied in the application list, the VPLMN with high priority is registered.

With reference to the fourth aspect and each first possible implementation manner of the fourth aspect, in a second possible implementation manner, the first information includes mapping S-NSSAI; the processor is further specifically configured to obtain a first intersection, where the first intersection includes S-NSSAIs, which are included in the S-NSSAI set and are the same as the S-NSSAIs included in the first information; the processor is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the first aggregation to obtain the priority of the first VPLMN. Based on the scheme, the system chip can determine the priority of the first VPLMN according to the priority of the S-NSSAI which is the same as the mapping S-NSSAI included in the first information in the S-NSSAI included in the S-NSSAI set.

With reference to the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible implementation manner of the fourth aspect, in a third possible implementation manner, the second information includes a mapping S-NSSAI; the processor is further specifically configured to obtain a second intersection, where the second intersection includes S-NSSAIs included in the S-NSSAI set, and the S-NSSAIs are mapped to the same S-NSSAI included in the second information; the processor is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the second aggregation to obtain the priority of the second VPLMN. Based on the scheme, the system chip can determine the priority of the second VPLMN according to the priority of the S-NSSAI which is the same as the mapping S-NSSAI included in the second information in the S-NSSAI included in the S-NSSAI set.

With reference to the fourth aspect, in a fourth possible implementation manner, the processor is specifically configured to add all S-NSSAIs included in the URSP to the set of S-NSSAIs; the processor is further specifically configured to determine, by the system chip, a priority of each S-NSSAI according to the priority of the application corresponding to each S-NSSAI in the S-NSSAI set. Based on the scheme, the system chip can add the S-NSSAI included by the URSP into the S-NSSAI set, and determine the priority of each S-NSSAI in the S-NSSAI set according to the priority of the application corresponding to each S-NSSAI in the S-NSSAI set.

With reference to the fourth aspect and various possible implementation manners of the second aspect, in five possible implementation manners, the communication interface is further configured to receive third information sent by the network device, where the third information is used to instruct the system chip to change the URSP. Based on the scheme, the system chip can update the URSP stored on the system chip according to the third information and determine the priority of the VPLM again.

With reference to the fourth aspect and various possible implementation manners of the fourth aspect, in six possible implementation manners, the first parameter includes a frequency of use of each application in the application list and/or a type of each application in the application list. Based on this scheme, the system chip may determine the priority of each application in the application list according to the frequency of use of each application in the application list and/or the type of each application in the application list.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, the fifth possible implementation manner of the fourth aspect, and the sixth possible implementation manner of the fourth aspect, in a seventh possible implementation manner, the URSP includes a plurality of URSP rules, each of the URSP rules includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI; the processor is specifically used for executing the steps a, b, c, d and e; wherein the step a is as follows: selecting a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions; the step b is as follows: traversing the selected first routing description, selecting a temporary S-NSSAI from each first routing description, and determining the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI; the step c is as follows: adding all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs; the step d is as follows: judging whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, executing the steps a-d until the unselected routing description does not exist in the URSP; the step e is as follows: the priority of each S-NSSAI in the set of S-NSSAIs is determined according to the order of each S-NSSAI in the set of S-NSSAIs. Based on the scheme, the system chip selects the first routing description corresponding to each application included in the application list, then selects the temporary S-NSSAI corresponding to each first routing description and determines the priority of each temporary S-NSSAI, and finally adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs, so that the priority of each S-NSSAI in the S-NSSAI set and the S-NSSAI set can be determined.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the temporary S-NSSAI is an S-NSSAI with the largest fan-out in the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, where the fan-out of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI. Based on this scheme, the system chip may select the temporary S-NSSAI according to the fan-out of S-NSSAI.

With reference to the fourth aspect and various possible implementation manners of the fourth aspect, in nine possible implementation manners, the system chip may further include a memory, and the memory is used for storing computer-executed instructions and data necessary for the system chip. When the system chip is running, the processor executes the computer executable instructions stored by the memory to enable the system chip to implement the functions of the system chip as in any one of the possible designs of the fourth aspect or the fourth aspect.

In a fifth aspect, the present application further provides a computer-readable storage medium, such as a computer non-transitory readable storage medium. A computer program is stored thereon, which, when run on a computer, causes the computer to perform the network registration method as described in the first aspect or any one of the possible designs of the first aspect. For example, the computer may be at least one storage node.

In a sixth aspect, this application further provides a computer program product, which when run on a computer causes the network registration method according to the first aspect or any one of the possible designs of the first aspect to be performed. For example, the computer may be at least one storage node.

It is understood that any one of the communication devices, computer storage media, computer program products, and the like provided above is used for executing the corresponding method provided above, and therefore, the beneficial effects achieved by the method can refer to the beneficial effects in the corresponding method, and are not described herein again.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application;

fig. 2 is a first schematic diagram of a URSP provided in an embodiment of the present application;

fig. 3 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present disclosure;

fig. 4 is a first flowchart of a network registration method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a URSP provided in the embodiment of the present application;

fig. 6 is a schematic flowchart of a network registration method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a URSP provided in an embodiment of the present application;

fig. 8 is a third schematic flowchart of a network registration method according to an embodiment of the present application;

fig. 9 is a fourth schematic flowchart of a network registration method according to an embodiment of the present application;

fig. 10 is a schematic flowchart of a network registration method according to an embodiment of the present application;

fig. 11 is a sixth schematic flowchart of a network registration method according to an embodiment of the present application;

fig. 12 is a seventh flowchart of a network registration method according to an embodiment of the present application;

fig. 13 is an eighth flowchart of a network registration method according to an embodiment of the present application;

fig. 14 is a flowchart illustrating a network registration method according to a ninth embodiment of the present application;

fig. 15 is a first schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 17 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The method provided in the embodiment of the present application may be used in a third generation partnership project (3 GPP) communication system, such as a Long Term Evolution (LTE) system, a fifth generation (5th generation, 5G) mobile communication system, an NR system, and other next generation communication systems, and may also be a non-3 GPP communication system, without limitation. The method provided by the embodiment of the present application is described below by taking the communication system 100 shown in fig. 1 as an example.

Fig. 1 is a schematic block diagram of a communication system 100 according to an embodiment of the present invention. In fig. 1, communication system 100 may include one or more network devices (e.g., network device 10 and network device 20) and one or more terminal devices connected to each network device (e.g., terminal device 30 and terminal device 40 connected to network device 10 and terminal device 50 connected to network device 20). Fig. 1 is a schematic diagram, and does not limit the application scenarios of the technical solutions provided in the present application.

Network devices in fig. 1, such as: the network device 10 or the network device 20 may be a transmission reception node (TRP), a base station, a relay station, an access point, or the like. Network device 10 or network device 20 may be a network device in a 5G communication system or a network device in a future evolution network; the method can also be as follows: a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or an nb (nodeb) in Wideband Code Division Multiple Access (WCDMA), or an eNB or enodeb (evolved nodeb) in Long Term Evolution (LTE). Network device 10 or network device 20 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario.

The terminal equipment in fig. 1, such as terminal equipment 30, terminal equipment 40 or terminal equipment 50, may be User Equipment (UE), access terminal equipment, UE unit, UE station, mobile station, remote terminal equipment, mobile equipment, UE terminal, wireless communication equipment, UE agent or UE device, etc. The access terminal may be a Personal Digital Assistant (PDA), a handheld device with wireless communication capability, a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN) network for future evolution, etc.

It should be noted that the communication system 100 shown in fig. 1 is only for example and is not used to limit the technical solution of the present application. It will be appreciated by those skilled in the art that communication system 100 may include other devices, and the number of network devices and terminal devices may be determined according to particular needs, in particular implementations. In addition, the network elements in fig. 1 may also be connected through other interfaces, which is not limited.

In fig. 1, when the terminal device 30 roams from the network device 10 to the network device 20, the terminal device 30 may register to a certain VPLMN, and subsequently, the terminal device 30 may determine whether the currently registered VPLMN is the highest priority PLMN of the network device 20 according to the sequence of the VPLMNs in the OPLMN list. If not, the terminal device 30 will periodically attempt to search for a high priority PLMN, and after the search is successful, will attempt to initiate registration on the high priority PLMN. However, in the OPLMN list, the order of OPLMNs is completely determined by the HPLMN based on the subscription information between operators, and the terminal device can register the VPLMN only based on the subscription information between operators.

Although a mechanism for updating the OPLMN list through signaling is added in 5G, that is, the OPLMN list information is issued in a registration/update procedure (registration procedure), or the OPLMN list information is issued in a Network-initiated NAS transport procedure (Network-initiated NAS transport procedure). However, the mechanism of whether to enable 5G to refresh the OPLMN list through signaling is difficult to expect.

More importantly, the VPLMN with the higher priority in the OPLMN list may use single network slice selection assistance information (S-NSSAI) corresponding to an application that is not frequently used by the user, rather than the S-NSSAI corresponding to an application that is frequently used by the user. Thus, the network in which the terminal device is registered cannot meet the requirements of the applications frequently used by the user, resulting in poor user experience.

Taking the example of using one S-NSSAI per VPLMN, the terminal device 30 is installed with APP #1 and APP #2, where APP #1 is an application frequently used by the user (e.g., used 50 times a day) (e.g., an application such as WeChat), and APP #2 is not an application frequently used by the user (e.g., used 10 times a day) (e.g., an application such as Payment treasure). When terminal device 30 roams from network device 10 to network device 20, terminal device 30 can register with a VPLMN having a higher priority in the OPLMN list. The network device 20 may send a UE routing policy (URSP) as shown in fig. 2 to the terminal device 20. In the URSP, APP #1 corresponds to S-NSSAI #1, and APP #2 corresponds to S-NSSAI # 2. If the VPLMN with the higher priority in the OPLMN list uses S-NSSAI #2, and the application corresponding to S-NSSAI #2 is APP #2, the user cannot use APP #1 on the terminal device 30. The user also needs the terminal device 30 to register with the VPLMN that can use S-NSSAI #1 if he wants to use APP # 1. Therefore, if the terminal device 30 registers the network according to the priority of the VPLMN in the OPLMN list, the terminal device may register to the network that cannot meet the requirements of the applications frequently used by the user, resulting in poor user experience.

In order to solve the problem that a network registered by a terminal device cannot meet the requirements of applications frequently used by a user, embodiments of the present application provide a network registration method, and a specific process of the method may be described with reference to a corresponding embodiment shown in fig. 8. By the method, the terminal equipment can associate the priority of the application with the priority of the VPLMN, so that the terminal equipment can register the VPLMN according to the priority of the application, the problem that a network registered by the terminal equipment cannot meet the requirement of the application frequently used by a user can be solved, and the user experience is improved.

Optionally, each network element (e.g., the network device 10 or the terminal device 30) in fig. 1 may be implemented by one device, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application. It is understood that the above functions may be either network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).

For example, each network element in fig. 1 may be implemented by the electronic device 300 in fig. 3. Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 300 in fig. 3 may specifically include: the mobile communication device includes a processor 310, an external memory interface 320, an internal memory 321, a Universal Serial Bus (USB) interface 330, a charging management module 340, a power management module 341, a battery 342, an antenna 1, an antenna 2, a mobile communication module 350, a wireless communication module 360, an audio module 370, a speaker 370A, a receiver 370B, a microphone 370C, an earphone interface 370D, a sensor module 380, buttons 390, a motor 391, an indicator 392, a camera 393, a display 394, and a Subscriber Identity Module (SIM) card interface 395. The sensor module 380 may include a depth sensor 380A, a pressure sensor 380B, a gyroscope sensor 380C, an air pressure sensor 380D, a magnetic sensor 380E, an acceleration sensor 380F, a distance sensor 380G, a proximity light sensor 380H, a fingerprint sensor 380J, a temperature sensor 380K, a touch sensor 380L, an ambient light sensor 380M, a bone conduction sensor 380N, and the like.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 300. In other embodiments of the present application, electronic device 300 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 310 may include one or more processing units, such as: the processor 310 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 310 for storing instructions and data. The memory may store instructions for implementing six modular functions: detection instructions, connection instructions, information management instructions, analysis instructions, data transmission instructions, and notification instructions, and execution is controlled by the processor 310. In some embodiments, the memory in the processor 310 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 310. If the processor 310 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 310, thereby increasing the efficiency of the system.

In some embodiments, processor 310 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The charging management module 340 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger.

The power management module 341 is configured to connect the battery 342, the charging management module 340 and the processor 310. The power management module 341 receives input from the battery 342 and/or the charge management module 340 and provides power to the processor 310, the internal memory 321, the display 394, the camera 393, and the wireless communication module 360. The power management module 341 may also be configured to monitor parameters such as battery capacity, battery cycle count, and battery state of health (leakage, impedance).

The wireless communication function of the electronic device 300 may be implemented by the antenna 1, the antenna 2, the mobile communication module 350, the wireless communication module 360, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 300 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 350 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 300. The mobile communication module 350 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 350 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the filtered electromagnetic wave to the modem processor for demodulation. The mobile communication module 350 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 370A, the receiver 370B, etc.) or displays images or video through the display 394.

The wireless communication module 360 may provide solutions for wireless communication applied to the electronic device 300, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 360 may be one or more devices integrating at least one communication processing module. The wireless communication module 360 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 310. The wireless communication module 360 may also receive a signal to be transmitted from the processor 310, frequency-modulate and amplify the signal, and convert the signal into electromagnetic waves via the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of electronic device 300 is coupled to mobile communication module 350 and antenna 2 is coupled to wireless communication module 360 such that electronic device 300 may communicate with networks and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The electronic device 300 implements display functions via the GPU, the display 394, and the application processor, among other things. The GPU is an image processing microprocessor coupled to a display 394 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 310 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 394 is used to display images, video, and the like. The display screen 394 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device 300 may include 1 or N display screens 394, N being a positive integer greater than 1.

The electronic device 300 may implement a shooting function through the ISP, the camera 393, the video codec, the GPU, the display 394, the application processor, and the like.

The external memory interface 320 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 300. The external memory card communicates with the processor 310 through the external memory interface 320 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 321 may be used to store computer-executable program code, which includes instructions. The internal memory 321 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The data storage area may store data (e.g., audio data, phone book, etc.) created during use of the electronic device 300, and the like. In addition, the internal memory 321 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 310 executes various functional applications of the electronic device 300 and data processing by executing instructions stored in the internal memory 321 and/or instructions stored in a memory provided in the processor.

The electronic device 300 may implement audio functions through the audio module 370, the speaker 370A, the receiver 370B, the microphone 370C, the earphone interface 370D, and the application processor. Such as music playing, recording, etc.

The audio module 370 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 370 may also be used to encode and decode audio signals.

The speaker 370A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The electronic device 300 can listen to music through the speaker 370A or listen to a hands-free conversation.

The receiver 370B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the electronic device 300 receives a call or voice information, it can receive voice by placing the receiver 370B close to the ear of the person.

Microphone 370C, also known as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal into the microphone 370C by speaking the user's mouth near the microphone 370C. The electronic device 300 may be provided with at least one microphone 370C.

The headphone interface 370D is used to connect wired headphones. The headset interface 370D may be the USB interface 330, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The depth sensor 380A is used to acquire depth information of the scene.

The pressure sensor 380B is used to sense a pressure signal, which can be converted into an electrical signal.

The gyro sensor 380C may be used to determine the motion pose of the electronic device 300.

The air pressure sensor 380D is used to measure air pressure.

The magnetic sensor 380E includes a hall sensor. The electronic device 300 can detect the opening and closing of the flip holster using the magnetic sensor 380E.

The acceleration sensor 380F can detect the magnitude of acceleration of the electronic device 300 in various directions (typically three axes). The magnitude and direction of gravity can be detected when the electronic device 300 is stationary. The method can also be used for recognizing the posture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.

And a distance sensor 380G for measuring distance.

The proximity light sensor 380H may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 300 emits infrared light to the outside through the light emitting diode. The electronic device 300 detects infrared reflected light from nearby objects using a photodiode.

The fingerprint sensor 380J is used to capture a fingerprint. The electronic device 300 may utilize the collected fingerprint characteristics to implement fingerprint unlocking, access an application lock, fingerprint photographing, fingerprint incoming call answering, and the like.

The temperature sensor 380K is used to detect temperature.

The touch sensor 380L is also referred to as a "touch device". The touch sensor 380L may be disposed on the display screen 394, and the touch sensor 380L and the display screen 394 form a touch screen, which is also referred to as a "touch screen". The touch sensor 380L is used to detect a touch operation applied thereto or therearound. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided via the display 394.

The ambient light sensor 380M is used to sense the ambient light level.

The bone conduction sensor 380N may acquire a vibration signal.

Keys 390 include a power-on key, a volume key, etc. The keys 390 may be mechanical keys. Or may be touch keys. The electronic device 300 may receive a key input, and generate a key signal input related to user setting and function control of the electronic device 300.

The motor 391 may generate a vibration cue. The motor 391 may be used for both incoming call vibration prompting and touch vibration feedback.

Indicator 392 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 395 is for connecting a SIM card. The SIM card can be brought into and out of contact with the electronic apparatus 300 by being inserted into and pulled out of the SIM card interface 395. The electronic device 300 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 395 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. Multiple cards can be inserted into the same SIM card interface 395 at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 395 may also be compatible with different types of SIM cards. The SIM card interface 395 may also be compatible with an external memory card. The electronic device 300 interacts with the network through the SIM card to implement functions such as communication and data communication.

The method for network registration provided by the embodiment of the present application will be specifically described below with reference to fig. 1 and 3.

It should be noted that, in the following embodiments of the present application, names of messages between network elements or names of parameters in messages are only an example, and other names may also be used in a specific implementation, which is not specifically limited in this embodiment of the present application.

It is understood that, in the embodiments of the present application, a terminal device may perform some or all of the steps in the embodiments of the present application, and these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of various operations. Further, the various steps may be performed in a different order presented in the embodiments of the application, and not all operations in the embodiments of the application may be performed.

As shown in fig. 4, a method for network registration provided in an embodiment of the present application includes steps 401 to 414.

Step 401: and the terminal equipment receives the third information sent by the network equipment.

The terminal device may be any one of the terminal devices 30 to 50 in fig. 1.

Optionally, when the content of the URSP is changed, the terminal device receives third information sent by the network device, where the third information includes the content after the URSP is changed.

Wherein the URSP may be used to indicate the correspondence of an application to S-NSSAI.

For example, taking the terminal device 30 in fig. 1 as an example, if the subscription information of the operator changes and the URSP content changes, the network device 10 may send the third information to the terminal device 30.

Optionally, when Network Slice Selection Assistance Information (NSSAI) of the VPLMN currently registered by the terminal device is changed, the terminal device receives third information sent by the Network device, where the third information includes the changed configured NSSAI.

For example, taking the terminal device 30 in fig. 1 as an example, if the network device reconfigures the configuration NSSAI of the VPLMN, the network device 10 may send the third information to the terminal device 30.

Optionally, the terminal device receives third information sent by the network device, where the third information is used to instruct the terminal device to re-determine the priority of the VPLMN currently registered by the terminal device.

Optionally, the URSP includes a plurality of URSP rules, each of which includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI.

Optionally, each URSP rule includes an application corresponding to one or more routing descriptions.

Optionally, in the URSP rule, the priority of the routing description at the front position is higher than the priority of the routing description at the back position.

Optionally, the routing description does not include an S-NSSAI, or the routing description includes one or more S-NSSAIs.

Fig. 5 is a schematic diagram of a URSP, and the URSP in fig. 5 includes K URSP rules. The URSP rule #1 includes M applications and R routing descriptions corresponding to the M applications. The APP #1 may correspond to the routing description #1 and the routing description #2, the APP # M corresponds to the routing description # R, and the routing description #1 has a higher priority than the routing description # 2. Wherein, the routing description #1 comprises N S-NSSAIs.

Step 402: the terminal device initializes the S-NSSAI set to null.

Wherein the set of S-NSSAIs is used to store the S-NSSAIs in the URSP in the order of their priority.

Step 403: the terminal equipment determines the priority of each application in the application list according to the first parameter.

Wherein the first parameter may include a frequency of use of each application in the application list; alternatively, the first parameter may include a type of each application in the application list; alternatively, the first parameter may include a frequency of use of each application in the application list and a type of each application in the application list. Wherein, the usage frequency of each application can be described as the number of times each application is used per day; alternatively, the frequency of use of each application may be described as the length of time each application is used per day.

Wherein the application list may include at least one application.

Optionally, the application list includes all applications on the terminal device; or the application list comprises a certain type of application (such as a social application or a payment application) on the terminal equipment; or the application list comprises applications with high user use frequency on the terminal equipment; alternatively, the user customizes the applications in the application list.

Example 1: the terminal device detects the number of times that the user uses each application in the application list every day in a period of time (for example, 10 days), then averages the number of times that the user uses each application every day detected in the period of time, and the terminal device determines the priority of each application in the application list according to the average value of the number of times that each application is used every day.

Table 1 shows the correspondence between the number of times an application is used per day and the priority of the application. Wherein, the priority of the application using 0-5 times per day is 1, the priority of the application using 6-15 times per day is 2, the priority of the application using 16-30 times per day is 3, the priority of the application using more than 30 times per day is 4, and the larger the value of the priority of the application is, the higher the priority of the application is.

TABLE 1

If 35 is the average of the number of times of daily use of APP #1, 25 is the average of the number of times of daily use of APP #2, 12 is the average of the number of times of daily use of APP # 3, 2 is the average of the number of times of daily use of APP #4, then the priority of APP #1 is 4, the priority of APP #2 is 3, the priority of APP #3 is 2, and the priority of APP #4 is 1.

It should be noted that table 1 is merely an example of the correspondence relationship between the number of times of daily use of the application and the priority of the application, and there may be other correspondence relationships between the number of times of daily use of the application and the priority of the application, and the correspondence relationship is not limited.

Example 2: and the terminal equipment determines the priority of each application according to the type of each application in the application list.

The correspondence of the type of application to the priority of the application is shown in table 2. The priority of map navigation applications (such as applications of a Baidu map, a Gaode map and the like) is 1, the priority of payment applications (such as applications of Paobao, Paoyi and the like) is 2, the priority of video applications (such as applications of Tencent video, Aiqiyi and the like) is 3, and the priority of social applications (such as applications of WeChat, QQ and the like) is 4. The larger the numerical value of the priority of the application is, the higher the priority of the application is.

TABLE 2

Type of application	Priority of applications
		Map navigation class	1
Payment classes	2
		Video and audio system	3
Social classes	4

If APP #1 is WeChat, APP #2 is Tencent video, APP #3 is Paibao, APP #4 is the Goodpasture map, then APP #1 has a priority of 4, APP #2 has a priority of 3, APP #3 has a priority of 2, and APP #4 has a priority of 1.

It should be noted that table 2 is only an example of correspondence between the type of the application and the priority of the application, and there may be other correspondence between the type of the application and the priority of the application, which is not limited.

Example 3: the terminal device detects the time length of each application used by the user every day in the application list within a period of time (for example, 10 days), then averages the time length of each application used by the user every day detected within the period of time, and the terminal device determines the priority of each application in the application list according to the average value of the time length of each application used every day and the type of each application.

The correspondence between the type of application, the time length of use of the application per day, and the priority of the application is shown in table 3. For map navigation applications, the priority of applications used for 0-1 hour per day is 1, and the priority of applications used for 1 hour or more per day is 2. For payment-type applications, the priority of applications that are used 0-0.5 hours per day is 1, and the priority of applications that are used 0.5 hours or more per day is 2. The larger the numerical value of the priority of the application is, the higher the priority of the application is. For video and audio applications, the priority of applications used for 0-1 hour per day is 1, the priority of applications used for 1-2 hours per day is 2, and the priority of applications used for 2 hours or more per day is 3. For social applications, the priority of applications using 0-0.5 hours per day is 1, the priority of applications using 0.5-2 hours per day is 2, and the priority of applications using 2 hours or more per day is 3. The larger the numerical value of the priority of the application is, the higher the priority of the application is.

TABLE 3

If APP #1 is WeChat, 2.5 hours when the average value of the time duration is used every day, APP #2 is Tencent video, 2.5 hours when the average value of the time duration is used every day, APP #3 is Paibao, 0.7 hours when the average value of the time duration is used every day, APP #4 is a Goodpasture map, 0 hour when the average value of the time duration is used every day, then the priority of APP #1 is 4, the priority of APP #2 is 3, the priority of APP #3 is 2, and the priority of APP #4 is 1.

It should be noted that table 3 is only an example of the correspondence between the types of applications, the time lengths of daily use of the applications, and the priorities of the applications, and there may be other correspondences between the types of applications, the time lengths of daily use of the applications, and the priorities of the applications, which is not limited.

Step 404: the terminal device selects a first routing description corresponding to each application included in the application list.

The first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions.

Illustratively, the relationship between the URSP rules, the application, the routing description and the S-NSSAI in the URSP stored on the terminal device is shown in table 4. Wherein, the URSP rule #1 comprises APP #1, the routing description #2 and the routing description #3 corresponding to the APP #1, APP #2, and a routing description #4 and a routing description #5 corresponding to APP #2, wherein the routing description #1 includes S-NSSAI #1, S-NSSAI #3, and S-NSSAI #6, the routing description #2 includes S-NSSAI #7, the routing description #3 includes S-NSSAI #2, the routing description #4 includes S-NSSAI #4, the routing description #5 includes S-NSSAI #5, the priority of the routing description #1 is greater than that of the routing description #2, the priority of the routing description #2 is greater than that of the routing description #3, and the priority of the routing description #4 is greater than that of the routing description # 5. The URSP rule #2 includes APP #3, routing description #6 corresponding to APP #3, APP #4, and routing description #7 corresponding to APP #4, the routing description #6 includes S-NSSAI #1 and S-NSSAI #4, and the routing description #7 includes S-NSSAI # 8.

TABLE 4

It should be noted that table 4 is only an example of the relationship between the URSP rule, the application, the routing description and the S-NSSAI in the URSP, and the relationship between the URSP rule, the application, the routing description and the S-NSSAI in the URSP may be in other forms, without limitation.

If the application included in the application list includes APP #1, APP #2, and APP #3, in table 4, for the URSP rule #1, the routing description corresponding to APP #1 includes routing description #1, routing description #2, and routing description #3, where all of these three routing descriptions are unselected routing descriptions, and the priority of the routing description #1 is the highest, so that the first routing description corresponding to APP #1 selected by the terminal device is routing description # 1; the routing description corresponding to APP #2 includes routing description #4 and routing description #5, where both routing descriptions are unselected routing descriptions, and the priority of routing description #4 is the highest, so the first routing description corresponding to APP #2 selected by the terminal device is routing description # 4. For the URSP rule #2, the routing description corresponding to APP #3 has routing description #6, and there is only one routing description corresponding to APP #3, so the first routing description corresponding to APP #3 selected by the terminal device is routing description # 6. APP #4 does not belong to an application in the application list and does not select the first routing description for APP # 4.

Through step 404, the terminal device may obtain the application shown in table 5, the first routing description corresponding to the application, and the S-NSSAI included in the first routing description. The first routing description corresponding to APP #1 is routing description #1, and the routing description #1 comprises S-NSSAI #1, S-NSSAI #3 and S-NSSAI # 6; the first routing description corresponding to APP #2 is routing description #4, and the routing description #4 comprises S-NSSAI # 4; the first routing description corresponding to APP #3 is routing description #6, and routing description #6 includes S-NSSAI #1 and S-NSSAI # 4.

TABLE 5

Step 405: and the terminal equipment traverses the selected first routing description, selects the temporary S-NSSAI from each first routing description, and determines the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI.

Optionally, the terminal device selects a temporary S-NSSAI from each first routing description according to the first routing description traversed from large to small by the fan-out of each first routing description, and determines the priority of the temporary S-NSSAI according to the priority of the application corresponding to the temporary S-NSSAI. During traversal, the first routing description corresponding to the selected temporary S-NSSAI need not be traversed.

Wherein the fanout of the first routing description may be determined by the number of S-NSSAIs comprised by the first routing description. The temporary S-NSSAI may be the S-NSSAI with the largest fan-out among the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, where the fan-out of the S-NSSAI may be determined by the number of applications corresponding to the S-NSSAI.

Optionally, the more S-NSSAIs the first routing description includes, the larger the fan-out of the first routing description is, the fewer S-NSSAIs the first routing description includes, and the smaller the fan-out of the first routing description is.

Optionally, the more the number of applications corresponding to S-NSSAI, the larger the fan-out of S-NSSAI, the less the number of applications corresponding to S-NSSAI, and the smaller the fan-out of S-NSSAI.

Optionally, the determining, by the terminal device, the priority of the temporary S-NSSAI according to the priority of the application corresponding to the temporary S-NSSAI includes: the terminal equipment determines the priority of the application with the maximum priority as the priority of the temporary S-NSSAI in the priorities of the applications corresponding to the temporary S-NSSAI; or, the terminal device determines the priority of the temporary S-NSSAI according to the priority of the application corresponding to the temporary S-NSSAI, including: and the terminal equipment sums the application priority corresponding to the temporary S-NSSAI to obtain the priority of the temporary S-NSSAI.

Step 405 is described below by taking as an example the application shown in table 5, the first routing description corresponding to the application, and the S-NSSAI included in the first routing description.

In table 5, routing description #1 includes 3S-NSSAIs, routing description #4 includes 1S-NSSAI, and routing description #6 includes 2S-NSSAIs, so the fanout of routing description #1 is the largest and the fanout of routing description #4 is the smallest.

The terminal device traverses the routing description #1, the routing description #6 and the routing description #4, for the routing description #1, the routing description #1 includes S-NSSAI #1, S-NSSAI #3 and S-NSSAI #6, table 4 shows that there are 2 applications corresponding to S-NSSAI #1, APP #1 and APP #3 respectively, 1 application corresponding to S- NSSAI # 3, 1 application corresponding to APP #1 and S-NSSAI #6, APP #1, so that the fan-out of S-NSSAI #1 is maximum, and therefore, the temporary S-NSSAI corresponding to the routing description #1 is S-NSSAI # 1. For the routing description #6, it is the routing description corresponding to the temporary S-NSSAI (S-NSSAI #1) that has been selected for the routing description #6, and therefore, the terminal device may not traverse the routing # 6. For routing description #4, routing description #4 includes S-NSSAI #4, and thus the temporary S-NSSAI corresponding to routing description #4 is S-NSSAI # 4. Thus, the current round of traversal selects two temporary S-NSSAIs, namely S-NSSAI #1 and S-NSSAI # 4.

Table 4 shows that S-NSSAI #1 corresponds to 2 applications, APP #1 and APP #3, respectively, and S-NSSAI #4 corresponds to 3 applications, APP #1, APP #2, and APP #3, respectively. In step 403, it is determined that the priority of APP #1 is 4, the priority of APP #2 is 3, and the priority of APP #3 is 2, so that the priority of S-NSSAI #1 is 4 (the priority of APP #1), and the priority of S-NSSAI #2 is 4 (the priority of APP # 1); alternatively, the priority of S-NSSAI #1 is 6 (priority of APP #1 + priority of APP #3), and the priority of S-NSSAI #4 is 9 (priority of APP #1 + priority of APP #2 + priority of APP # 3).

Step 406: and the terminal equipment adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs.

Optionally, the adding, by the terminal device, all the temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs includes: and the terminal equipment adds all temporary S-NSSAIs into the S-NSSAI set from high to low according to the priority order of the temporary S-NSSAIs.

If the priorities of the temporary S-NSSAIs are the same, the terminal equipment firstly adds the temporary S-NSSAI selected firstly into the S-NSSAI set, and then adds the temporary S-NSSAI selected later into the S-NSSAI set.

Illustratively, taking the result of step 405 as an example (the temporary S-NSSAI is S-NSSAI #1 and S-NSSAI #4, and the priority of S-NSSAI #1 and the priority of S-NSSAI #4 are both 4), the set of S-NSSAIs is { S-NSSAI #1, S-NSSAI #4} because the terminal device selects S-NSSAI #1 first and then selects S-NSSAI # 4.

Illustratively, taking the result of step 405 as an example (temporary S-NSSAI is S-NSSAI #1 and S-NSSAI #4, S-NSSAI #1 has a priority of 6, S-NSSAI #4 has a priority of 9), the set of S-NSSAIs is { S-NSSAI #4, S-NSSAI #1} because the priority of S-NSSAI #4 is greater than the priority of S-NSSAI # 1.

Step 407: the terminal device determines whether there is a non-selected routing description in the routing description corresponding to the application included in the application list, and if so, executes steps 404-407 until there is no non-selected routing description in the URSP.

After step 406 is executed, the URSP shown in table 4, and in the routing description corresponding to the applications (APP #1, APP #2, and APP #3) included in the application list, the routing description #2, routing description #3, and routing description #5 are unselected routing descriptions, and therefore, the terminal device needs to execute step 404-step 407 again.

When the terminal device performs steps 404 to 407 for the second time, the first routing description corresponding to APP #1 is routing description #2, the first routing description corresponding to APP #2 is routing description #5, and there is no unselected routing description in the routing description corresponding to APP #3, so that when the terminal device performs steps 404 to 407 for the second time, APP #3 has no corresponding first routing description.

Referring to the above-mentioned processes of steps 405 and 406, taking as an example that the terminal device determines the priority of the application with the highest priority among the priorities of the applications corresponding to the temporary S-NSSAIs as the priority of the temporary S-NSSAI, and adds all the temporary S-NSSAIs to the S-NSSAI set from high to low according to the priority order of the temporary S-NSSAIs, the temporary S-NSSAI corresponding to the routing description #2 is S-NSSAI #7, the temporary S-NSSAI corresponding to the routing description #5 is S-NSSAI #5, the priority of S-NSSAI #7 is 4, and the priority of S-NSSAI #5 is 3, so that the second execution of steps 404 to 406 is performed, and the S-NSSAI set is { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7, S-NSSAI #5 }.

After step 404-step 406 are executed for the second time, the URSP shown in table 4, and in the routing description corresponding to the applications (APP #1, APP #2, and APP #3) included in the application list, the routing description #3 is a routing description that has not been selected, and therefore, the terminal device needs to execute step 404-step 407 again.

When the terminal device executes the steps 404 to 407 for the third time, the first routing description corresponding to APP #1 is the routing description #3, and there is no unselected routing description in the routing descriptions corresponding to APP #2 and APP #3, so that when the terminal device executes the steps 404 to 407 for the third time, APP #2 and APP #3 have no corresponding first routing description.

Referring to the above-mentioned processes of steps 405 and 406, taking as an example that the terminal device determines the priority of the application with the highest priority among the priorities of the applications corresponding to the temporary S-NSSAIs as the priority of the temporary S-NSSAI, and adds all the temporary S-NSSAIs to the S-NSSAI set from high to low according to the priority order of the temporary S-NSSAIs, the routing description #3 corresponds to the temporary S-NSSAI #2, and the priority of the S-NSSAI #2 is 4, so that steps 404 to 406 are performed for the third time, and the S-NSSAI set is { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7, S-NSSAI #5, S-NSSAI #2 }.

After the third execution of step 404-step 406, in the URSP shown in table 4, there is no unselected routing description in the routing description corresponding to the applications (APP #1, APP #2, and APP #3) included in the application list, so that the terminal device does not need to execute step 404-step 406, and the terminal device executes step 408.

Step 408: the terminal equipment determines the priority of each S-NSSAI in the S-NSSAI set according to the sequence of each S-NSSAI in the S-NSSAI set.

For example, if the terminal device adds all temporary S-NSSAIs to the S-NSSAI set from high to low in the priority order of the temporary S-NSSAIs, the priority of each S-NSSAI in the S-NSSAI set is determined from high to low in the priority order of the S-NSSAIs.

Taking the third execution of steps 404-406, the S-NSSAI set is { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7, S-NSSAI #5, S-NSSAI #2}, the priority of S-NSSAI #1 is 5, the priority of S-NSSAI #4 is 4, the priority of S-NSSAI #7 is 3, the priority of S-NSSAI #5 is 2, and the priority of S-NSSAI #2 is 1. The greater the value of the priority of the S-NSSAI, the greater the priority of the application.

Step 409: the terminal device obtains the first intersection.

Optionally, the first intersection includes: the set of S-NSSAIs includes the same S-NSSAI as the mapped S-NSSAI included in the first information.

Wherein, the first information is the configured NSSAI of the first VPLMN. The configuration NSSAI of the first VPLMN may include an S-NSSAI used by the first VPLMN and a mapping S-NSSAI corresponding to the S-NSSAI, and the mapping S-NSSAI corresponding to the S-NSSAI may be an S-NSSAI that maps the S-NSSAI to the HPLMN.

It should be noted that the first VPLMN may be a VPLMN currently registered by the terminal device, and the terminal device may receive and store the configuration NSSAI of the first VPLMN, which is sent by the network device, when registering the first VPLMN. The first VPLMN may also be other VPLMNs, without limitation.

For example, the terminal device can determine the priority of the VPLMN which is registered before, and the terminal device can also determine the priority of the VPLMN which is registered at present.

Illustratively, taking the set of S-NSSAIs as { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7, S-NSSAI #5, S-NSSAI #2}, the mapping S-NSSAI included in the first information includes S-NSSAI #1, S-NSSAI #5, and S-NSSAI #8, where S-NSSAI included in the set of S-NSSAIs includes the same S-NSSAI as the mapping S-NSSAI included in the first information: S-NSSAI #1 and S-NSSAI #5, so the first intersection is { S-NSSAI #1, S-NSSAI #5 }.

Step 410: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the first intersection to obtain the priority of the first VPLMN.

Optionally, the terminal device adds the priority of each S-NSSAI in the first aggregation to obtain the priority of the first VPLMN.

Illustratively, the first intersection set is { S-NSSAI #1, S-NSSAI #5}, the priority of S-NSSAI #1 is 5, the priority of S-NSSAI #5 is 2, and thus, the priority of the first VPLMN is 7.

Step 411: and the terminal equipment acquires the second intersection.

Optionally, the second intersection includes: the set of S-NSSAIs includes the same S-NSSAI as the mapped S-NSSAI included in the second information.

Wherein the second information is the configured NSSAI of the second VPLMN. The configuration NSSAI of the second VPLMN may include an S-NSSAI used by the second VPLMN and a mapping S-NSSAI corresponding to the S-NSSAI, and the mapping S-NSSAI corresponding to the S-NSSAI may be an S-NSSAI that maps the S-NSSAI to the HPLMN.

It should be noted that the second VPLMN may be a VPLMN that the terminal device has previously registered, and the terminal device may receive and store the configuration NSSAI of the second VPLMN sent by the network device when registering the second VPLMN. The second VPLMN may also be other VPLMNs, without limitation.

Illustratively, taking the set of S-NSSAIs as { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7, S-NSSAI #5, S-NSSAI #2}, the mapping S-NSSAI included in the second information includes S-NSSAI #1, S-NSSAI #4, and S-NSSAI #7, where S-NSSAI included in the set of S-NSSAIs includes S-NSSAIs having the same mapping S-NSSAI as that included in the second information: S-NSSAI #1, S-NSSAI #4, and S-NSSAI #7, and thus, the second intersection is { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7 }.

Step 412: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the second intersection to obtain the priority of the second VPLMN.

Optionally, the terminal device adds the priority of each S-NSSAI in the second aggregation to obtain the priority of the second VPLMN.

Illustratively, the second intersection set is { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7}, the priority of S-NSSAI #1 is 5, the priority of S-NSSAI #4 is 4, the priority of S-NSSAI #7 is 3, and thus, the priority of the second VPLMN is 12.

Step 413: and if the priority of the second VPLMN is higher than that of the first VPLMN, the terminal equipment sends a registration request message to the network equipment.

Wherein the registration request message is used to register the second VPLMN.

Illustratively, in the above example, the priority of the first VPLMN is 7, and the priority of the second VPLMN is 12, so the terminal device sends the registration request message to the network device.

Optionally, the registration request message includes the S-NSSAI with higher priority in the first intersection and the second intersection.

Illustratively, taking a first intersection of { S-NSSAI #1, S-NSSAI #5}, a priority of S-NSSAI #1 of 5, a priority of S-NSSAI #5 of 2, a second intersection of { S-NSSAI #1, S-NSSAI #4, S-NSSAI #7}, a priority of S-NSSAI #1 of 5, a priority of S-NSSAI #4 of 4, a priority of S-NSSAI #7 of 3 as an example, if the second VPLMN has a higher priority than the first VPLMN, the terminal device may send a registration request message, which may include a Requested NSSAI (Requested NSSAI IE), which may include S-NSSAI #1 and S-NSSAI #4, to reduce the terminal device' S slice of non-triggered sessions that are not used by an established protocol data unit (protosai, data unit) in the network, the time delay for the terminal equipment to establish the PDU session can be reduced.

In some embodiments, if the priorities of the first VPLMN and the second VPLMN are the same, the terminal device may further order the priorities of the first VPLMN and the second VPLMN according to the following conditions:

condition 1: and if the first VPLMN and the second VPLMN are both in the OPLMN list, the terminal equipment determines the priority of the first VPLMN and the priority of the second VPLMN according to the sequence of the first VPLMN and the second VPLMN in the OPLMN list.

For example: if the priorities of the first VPLMN and the second VPLMN are the same, the first VPLMN is the second VPLMN in the OPLMN list, and the second VPLMN is the fourth VPLMN in the OPLMN list, the priority of the first VPLMN is higher than that of the second VPLMN.

Condition 2: if only one of the first VPLMN and the second VPLMN is in the OPLMN list, the priority of the VPLMN in the OPLMN list is higher.

For example: if the priority of the first VPLMN is the same as that of the second VPLMN, the first VPLMN is the second VPLMN in the OPLMN list, and the second VPLMN is not in the OPLMN list, the priority of the first VPLMN is higher than that of the second VPLMN.

Condition 3: if neither the first VPLMN nor the second VPLMN is in the OPLMN list, the terminal device may determine the priorities of the first VPLMN and the second VPLMN according to the signal qualities of the first VPLMN and the second VPLMN.

For example, if the priorities of the first VPLMN and the second VPLMN are the same, and if neither the first VPLMN nor the second VPLMN is in the OPLMN list, the first VPLMN is a VPLMN with high signal quality, and the second VPLMN is not a VPLMN with high signal quality, the terminal device determines that the priority of the first VPLMN is higher than that of the second VPLMN.

For example, if the priorities of the first VPLMN and the second VPLMN are the same, and if neither the first VPLMN nor the second VPLMN is in the OPLMN list, and both the first VPLMN and the second VPLMN are high-signal-quality VPLMNs, the terminal device randomly determines the priorities of the first VPLMN and the second VPLMN.

Condition 4: if neither the first VPLMN nor the second VPLMN is in the OPLMN list, the terminal device may determine the priorities of the first VPLMN and the second VPLMN according to the signal quality and the signal strength of the first VPLMN and the second VPLMN.

For example: if the priorities of the first VPLMN and the second VPLMN are the same, and if neither the first VPLMN nor the second VPLMN is in the OPLMN list, and neither the first VPLMN nor the second VPLMN is a high-signal-quality VPLMN, the terminal may determine the priorities of the first VPLMN and the second VPLMN according to the signal strengths of the first VPLMN and the second VPLMN, such as: the VPLMN with higher signal strength has higher priority.

Step 414: and the terminal equipment receives the registration receiving message sent by the network equipment.

Based on the method shown in fig. 4, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, determine, according to the first information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the first VPLMN, determine, according to the second information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the second VPLMN, so that the terminal device may associate the priorities of the applications with the priorities of the VPLMNs, and register the VPLMN according to the priorities of the applications, so that a network registered by the terminal device meets the requirements of high-priority applications in the application list as much as possible, and user experience is improved.

In the method shown in fig. 4, the URSP includes a plurality of URSP rules, each of which includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI, so that the terminal device may associate the applications in the application list with S-NSSAI according to the URSP rules, and in addition to the method shown in fig. 4, the URSP may directly include S-NSSAI corresponding to the applications, so that the terminal device may directly associate the applications in the application list with S-NSSAI through the URSP. As shown in fig. 6, a method for network registration provided in an embodiment of the present application includes steps 601 to 610.

Step 601: and the terminal equipment receives the third information sent by the network equipment.

The terminal device may be any one of the terminal devices 30 to 50 in fig. 1.

When the content of the URSP changes or the configuration NSSAI of the VPLMN currently registered by the terminal device changes, the terminal device may receive the third information sent by the network device, and the specific process may refer to the description corresponding to step 401, which is not described herein again.

Step 602: the terminal equipment determines the priority of each application in the application list according to the first parameter.

The terminal device may determine the priority of each application in the application list according to the usage frequency of each application in the application list and/or the type of each application in the application list, and the specific process may refer to the description corresponding to step 403, which is not described herein again.

Step 603: the terminal equipment adds all S-NSSAIs in the URSP into the S-NSSAI set.

Optionally, the URSP includes applications and S-NSSAIs corresponding to the applications, and any application included in the URSP corresponds to at least one S-NSSAI.

Fig. 7 is a schematic diagram of the URSP. In FIG. 7, APP #1 corresponds to S-NSSAI #1 and S-NSSAI #2, APP #2 corresponds to S-NSSAI #2, APP #3 corresponds to S-NSSAI #3, and APP #4 corresponds to S-NSSAI # 4. After the terminal device executes step 603, the set of S-NSSAIs is { S-NSSAI #1, S-NSSAI #2, S-NSSAI #3, S-NSSAI #4 }.

Step 604: the terminal device determines a priority for each S-NSSAI in the set of S-NSSAIs.

Optionally, if the S-NSSAI in the S-NSSAI set has a corresponding application in the application list, the terminal device determines the priority of the S-NSSAI according to the priority of the application corresponding to the S-NSSAI, and if the S-NSSAI in the S-NSSAI set does not have a corresponding application in the application list, the terminal device assigns a lower priority to the S-NSSAI that does not have a corresponding application in the application list.

Optionally, the determining, by the terminal device, the priority of the S-NSSAI according to the priority of the application corresponding to the S-NSSAI includes: and the terminal equipment determines the priority of the application with the maximum priority as the priority of the S-NSSAI in the priorities of the applications corresponding to the S-NSSAI.

Illustratively, taking the application list including APP #1, APP #2 and APP #3, APP #1 having a priority of 4, APP #2 having a priority of 3 and APP #3 having a priority of 2 as an example, if the URSP is shown in fig. 7, for the S-NSSAI set { S-NSSAI #1, S-NSSAI #2, S-NSSAI #3, S-NSSAI #4}, the application to which S-NSSAI #1 corresponds in the URSP is APP #1 in the application list, so S-NSSAI #1 has a priority of 4, and the application to which S-NSSAI #2 corresponds in the URSP is APP #1 and APP #2 in the application list, so S-NSSAI #2 has a priority of 4, S-NSSAI #3 has a priority of 4 in the URSP is APP #3 in the application list, so S-NSSAI #3 has a priority of 2, S-NSSAI #4 corresponds to APP #4 in the URSP, so that S-NSSAI #4 corresponds to APP #4 in the application list, therefore, the terminal device can set the priority of S-NSSAI #4 to 1.

Optionally, the determining, by the terminal device, the priority of the S-NSSAI according to the priority of the application corresponding to the S-NSSAI includes: and the terminal equipment performs summation calculation on the application priority corresponding to the S-NSSAI to obtain the priority of the S-NSSAI.

Illustratively, taking the application list including APP #1, APP #2 and APP #3, APP #1 having a priority of 4, APP #2 having a priority of 3 and APP #3 having a priority of 2 as an example, if the URSP is shown in fig. 7, for the S-NSSAI set { S-NSSAI #1, S-NSSAI #2, S-NSSAI #3, S-NSSAI #4}, the application to which S-NSSAI #1 corresponds in the URSP is APP #1 in the application list, so S-NSSAI #1 has a priority of 4, and the application to which S-NSSAI #2 corresponds in the URSP is APP #1 and APP #2 in the application list, so S-NSSAI #2 has a priority of 7, S-NSSAI #3 has a priority of 3 in the application list, so S-NSSAI #3 has a priority of 2, S-NSSAI #4 corresponds in the application list, but not APP #4 in the URSP list, therefore, the terminal device can set the priority of S-NSSAI #4 to 1.

Step 605: the terminal device obtains the first intersection.

Step 606: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the first intersection to obtain the priority of the first VPLMN.

Step 607: and the terminal equipment acquires the second intersection.

Step 608: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the second intersection to obtain the priority of the second VPLMN.

Step 609: and if the priority of the second VPLMN is higher than that of the first VPLMN, the terminal equipment sends a registration request message to the network equipment.

Step 610: and the terminal equipment receives the registration receiving message sent by the network equipment.

The terminal device may determine the priority of the first VPLMN according to the priority of the S-NSSAI in the first aggregation, determine the priority of the second VPLMN according to the priority of the S-NSSAI in the second aggregation, and send a registration request message for registering the second VPLMN to the network device when the priority of the second VPLMN is higher than the priority of the first VPLMN, where in detail, the processes of steps 605 to 610 may refer to the descriptions corresponding to steps 409 to 414, and are not described herein again.

Based on the method shown in fig. 6, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, determine, according to the first information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the first VPLMN, determine, according to the second information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the second VPLMN, so that the terminal device may associate the priorities of the applications with the priorities of the VPLMNs, and register the VPLMN according to the priorities of the applications, so that a network registered by the terminal device meets the requirements of high-priority applications in the application list as much as possible, and user experience is improved.

The method shown in fig. 4 and fig. 6 is a detailed process of a network registration method in a roaming scenario, and the present application further provides a network registration method, as shown in fig. 8, the network registration method includes steps 801 to 803.

Step 801: the terminal equipment determines the priority of each application in the application list according to the first parameter.

Wherein the application list may include at least one application.

The terminal device may determine the priority of each application in the application list according to the usage frequency of each application in the application list and/or the type of each application in the application list, and the specific process may refer to the description corresponding to step 403, which is not described herein again.

Step 802: the terminal equipment determines the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to the URSP, each application in the application list and the priority of each application.

The specific process of step 802 can refer to steps 8021-8025 in the method shown in fig. 10 described below, or steps 8026 and 8027 in the method shown in fig. 14 described below.

Step 803: and the terminal equipment determines the priority of the first VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set.

Wherein the first information may be a configuration NSSAI of the first VPLMN.

The specific process of step 803 can refer to steps 8031-8032 in the method illustrated in fig. 11 described below.

Based on the method shown in fig. 8, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, and then determine, according to the first information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the first VPLMN, so that the terminal device may associate the priority of the application with the priority of the VPLMN, and further the terminal device may register the VPLMN according to the priority of the application, so that a network in which the terminal device registers may satisfy the requirement of a high-priority application in the application list as much as possible, and user experience is improved.

Further, the terminal device can also determine the priority of other VPLMNs, so that when the priority of other VPLMNs is higher than that of the first VPLMN, the terminal device registers the other VPLMNs. As shown in fig. 9, the method shown in fig. 8 may further include steps 804 and 805.

Step 804: and the terminal equipment determines the priority of the second VPLMN according to the second information and the priority of each S-NSSAI in the S-NSSAI set.

Wherein the second information may be NSSAI of the second VPLMN.

The specific process of step 804 can refer to steps 8041-8042 in the method shown in fig. 12 described below.

Step 805: and if the priority of the second VPLMN is higher than that of the first VPLMN, the terminal equipment sends a registration request message to the network equipment.

Wherein the registration request message can be used to register the second VPLMN.

The terminal device may send a registration request message for registering the second VPLMN to the network device when determining that the priority of the second VPLMN is higher than the priority of the first VPLMN, and the specific process may refer to the description corresponding to step 413, which is not described herein again.

Based on the method shown in fig. 9, when the terminal device determines that the priority of the second VPLMN is higher than the priority of the first VPLMN, the second VPLMN is registered, so that the network registered by the terminal device meets the requirement of high-priority applications in the application list as much as possible, and the user experience is improved.

In some embodiments, the URSP comprises a plurality of URSP rules, each URSP rule comprising an application and a corresponding routing description of the application, the routing description comprising an S-NSSAI. As shown in fig. 10, step 802 may be replaced with steps 8021-8025 in the method shown in fig. 8.

Step 8021: the terminal device selects a first routing description corresponding to each application included in the application list.

Step 8022: and the terminal equipment traverses the selected first routing description, selects the temporary S-NSSAI from each first routing description, and determines the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI.

Step 8023: and the terminal equipment adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs.

Step 8024: the terminal device determines whether there is a non-selected routing description in the routing description corresponding to the application included in the application list, and if so, executes step 8021-step 8024 until there is no non-selected routing description in the URSP.

Step 8025: the terminal equipment determines the priority of each S-NSSAI in the S-NSSAI set according to the sequence of each S-NSSAI in the S-NSSAI set.

In step 8021 to step 8025, the terminal device may associate the application in the application list with the S-NSSAI in the URSP according to the URSP rule, and the specific process may refer to the description corresponding to step 404 to step 408, which is not described herein again.

Based on the method shown in fig. 10, the terminal device may select the first routing description corresponding to each application included in the application list, select the temporary S-NSSAI corresponding to each first routing description, determine the priority of each temporary S-NSSAI, add all temporary S-NSSAIs to the S-NSSAI set according to the priority order of the temporary S-NSSAI, determine the priority of each S-NSSAI in the S-NSSAI set and the S-NSSAI set, determine the priority of the first VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set, so that the terminal device may associate the priority of the application with the priority of the VPLMN, and then the terminal device may register the VPLMN according to the priority of the application, so that the network in which the terminal device registers may meet the requirement of the high-priority application in the application list as much as possible, the user experience is improved.

In some embodiments, the first information includes a mapping S-NSSAI. As shown in fig. 11, step 803 may be replaced with step 8031 and step 8032 in the method of fig. 8.

Step 8031: the terminal device obtains the first intersection.

Step 8032: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the first intersection to obtain the priority of the first VPLMN.

In step 8031 to step 8032, the terminal device may determine the priority of the first VPLMN according to the priority of each S-NSSAI in the first intersection, and the specific process may refer to the description corresponding to step 409 to step 410, which is not described herein again.

Based on the method shown in fig. 11, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, obtain the first intersection, and perform summation calculation on the priorities of the S-NSSAIs in the first intersection to obtain the priority of the first VPLMN, so that the terminal device may associate the priority of the application with the priority of the VPLMN, and further the terminal device may register the VPLMN according to the priority of the application, so that a network registered by the terminal device satisfies the requirement of the high-priority application in the application list as much as possible, and user experience is improved.

In some embodiments, as shown in fig. 12, step 804 can be replaced with step 8041 and step 8042 in the method shown in fig. 9.

Step 8041: and the terminal equipment acquires the second intersection.

Step 8042: and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the second intersection to obtain the priority of the second VPLMN.

Step 8041 to step 8042, the terminal device may determine the priority of the second VPLMN according to the priority of each S-NSSAI in the second intersection, and the specific process may refer to the descriptions corresponding to step 411 to step 412, which is not described herein again.

Based on the method shown in fig. 12, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, obtain the first intersection, perform summation calculation on the priorities of the S-NSSAIs in the first intersection to obtain the priority of the first VPLMN, finally obtain the second intersection, perform summation calculation on the priorities of the S-NSSAIs in the second intersection to obtain the priority of the second VPLMN, so that the terminal device may associate the priorities of the applications with the priorities of the VPLMNs, and register the VPLMN according to the priorities of the applications, so that a network registered by the terminal device meets the requirements of high-priority applications in the application list as much as possible, and user experience is improved.

In some embodiments, as shown in FIG. 13, the method shown in FIG. 8 may further include step 806.

Step 806: and the terminal equipment receives the third information sent by the network equipment.

When the content of the URSP changes or the configuration NSSAI of the VPLMN currently registered by the terminal device changes, the terminal device may receive the third information sent by the network device, and the specific process may refer to the description corresponding to step 401, which is not described herein again.

Based on the method shown in fig. 13, the terminal device may update the URSP stored on the terminal device according to the third information, or the terminal device may update the currently registered configuration NSSAI of the VPLMN according to the third information and re-determine the priority of the VPLMN.

In some embodiments, as shown in fig. 14, step 802 may be replaced with step 8026 and step 8027 in the method of fig. 8.

Step 8026: the terminal equipment adds all S-NSSAIs included by the URSP into the S-NSSAI set.

Step 8027: and the terminal equipment determines the priority of each S-NSSAI according to the application priority corresponding to each S-NSSAI in the S-NSSAI set.

In step 8026 to step 8027, the terminal device directly associates the application in the application list with the S-NSSAI through the URSP, and the specific process may refer to the description corresponding to steps 603 to 604, which is not described herein again.

Based on the method shown in fig. 14, the terminal device may determine, according to the routing policy, each application in the application list, and the priority of each application, the S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set, and then determine, according to the first information and the priority of each S-NSSAI in the S-NSSAI set, the priority of the first VPLMN, so that the terminal device may associate the priority of the application with the priority of the VPLMN, and further the terminal device may register the VPLMN according to the priority of the application, so that a network in which the terminal device registers may satisfy the requirement of a high-priority application in the application list as much as possible, and user experience is improved.

It is understood that the terminal device includes a hardware structure and/or a software module for performing the functions, respectively. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal device may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

For example, in the case where the functional modules are divided in an integrated manner, fig. 15 shows a schematic configuration diagram of the electronic device 150. The electronic device 150 includes: a processing module 1501. The processing module 1501 is configured to determine a priority of each application in an application list according to the first parameter, where the application list includes at least one application; the processing module 1501 is further configured to determine a single network slice selection auxiliary information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the routing policy URSP, each application in the application list, and a priority of each application; the processing module 1501 is further configured to determine a priority of the first public land mobile network VPLMN according to the first information and a priority of each S-NSSAI in the set of S-NSSAIs, where the first information is configuration network slice selection assistance information NSSAI of the first VPLMN.

Optionally, as shown in fig. 16, the communication device further includes: a sending module 1502, the sending module 1502 is configured to send a registration request message to a network device, where the registration request message is used for registering the second VPLMN, if the priority of the second VPLMN is higher than the priority of the first VPLMN.

Optionally, the URSP includes a plurality of URSP rules, each of the URSP rules includes an application and a routing description corresponding to the application, and the routing description includes S-NSSAI; the processing module 1501 is specifically configured to execute step a, step b, step c, step d, and step e; wherein the step a is as follows: selecting a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions; the step b is as follows: traversing the selected first routing description, selecting a temporary S-NSSAI from each first routing description, and determining the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI; the step c is as follows: adding all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs; the step d is as follows: judging whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, executing the steps a-d until the unselected routing description does not exist in the URSP; the step e is as follows: the priority of each S-NSSAI in the set of S-NSSAIs is determined according to the order of each S-NSSAI in the set of S-NSSAIs.

Optionally, the temporary S-NSSAI is an S-NSSAI with the largest fan-out in the S-NSSAI included in the first routing description corresponding to the temporary S-NSSAI, where the fan-out of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI. Based on this scheme, the terminal device may select a temporary S-NSSAI based on the fan-out of the S-NSSAI.

Optionally, the first information includes a mapping S-NSSAI; the processing module 1501 is further specifically configured to obtain a first intersection, where the first intersection includes S-NSSAIs that are the same as the S-NSSAI included in the first information and are mapped to S-NSSAIs included in the S-NSSAI set; the processing module is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the first aggregation to obtain the priority of the first VPLMN.

Optionally, the second information includes a mapping S-NSSAI; the processing module 1501 is further specifically configured to obtain a second intersection, where the second intersection includes S-NSSAIs included in the S-NSSAI set, and the S-NSSAIs are mapped to the same S-NSSAI included in the second information; the processing module is further specifically configured to perform summation calculation on the priority of the S-NSSAI in the second aggregation to obtain the priority of the second VPLMN.

Optionally, the processing module 1501 is specifically configured to add all S-NSSAIs included in the URSP to the S-NSSAI set; the processing module 1501 is further specifically configured to determine, by the terminal device, the priority of each S-NSSAI according to the priority of the application corresponding to each S-NSSAI in the S-NSSAI set.

Optionally, as shown in fig. 17, the electronic device 150 further includes: a module 1503 is received. The receiving module 1503 is configured to receive third information sent by the network device, where the third information is used to instruct the communication apparatus to change the URSP.

Optionally, the first parameter includes a frequency of use of each application in the application list and/or a type of each application in the application list.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the present embodiment, the electronic device 150 is presented in a form in which the respective functional modules are divided in an integrated manner. A "module" herein may refer to a particular ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that provides the described functionality. In a simple embodiment, one skilled in the art will recognize that the electronic device 150 may take the form shown in FIG. 3.

For example, the processor 310 in fig. 3 may cause the electronic device 150 to execute the method of network registration in the above method embodiment by calling a computer stored in the internal memory 321 to execute the instructions.

Illustratively, the functions/implementation procedures of the processing module 1501, the sending module 1502, and the receiving module 1503 in fig. 17 may be implemented by the processor 310 in fig. 3 calling a computer-executable instruction stored in the internal memory 321. Alternatively, the function/implementation procedure of the processing module 1501 in fig. 17 may be implemented by the processor 310 in fig. 3 calling a computer-executable instruction stored in the internal memory 321, and the function/implementation procedures of the transmitting module 1502 and the receiving module 1503 in fig. 17 may be implemented by the mobile communication module 350 in fig. 3.

Since the electronic device 150 provided in this embodiment can execute the above-mentioned network registration method, the technical effects obtained by the electronic device 150 can refer to the above-mentioned method embodiments, and are not described herein again.

Optionally, an apparatus (for example, the apparatus may be a system on a chip) is further provided in an embodiment of the present application, where the apparatus includes a processor, and is configured to support the electronic device 150 to implement the above-described method for network registration, for example: for determining the priority of each application in the application list according to the first parameter, and determining the single network slice selection assistance information S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to the routing policy URSP, each application in the application list and the priority of each application. In one possible design, the apparatus further includes a memory. The memory is used for storing necessary program instructions and data for the electronic device 150. Of course, the memory may not be in the device. When the device is a chip system, the device may be composed of a chip, and may also include a chip and other discrete devices, which is not specifically limited in this application embodiment.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (17)

1. A method of network registration, the method comprising:

the terminal equipment determines the priority of each application in an application list according to the first parameter, wherein the application list comprises at least one application;

the terminal equipment determines a single network slice selection auxiliary information S-NSSAI set and the priority of each S-NSSAI in the S-NSSAI set according to a routing strategy URSP, each application in the application list and the priority of each application;

the terminal equipment determines the priority of a first public land mobile network (VPLMN) according to first information and the priority of each S-NSSAI in the S-NSSAI set, wherein the first information is configuration network slice selection auxiliary information NSSAI of the first VPLMN;

wherein the first information comprises a mapping S-NSSAI;

the terminal device determines the priority of the first VPLMN according to the first information and the priority of each S-NSSAI in the S-NSSAI set, including:

the terminal equipment acquires a first intersection, wherein the first intersection comprises the S-NSSAI which is the same as the mapping S-NSSAI included by the first information in the S-NSSAI included by the S-NSSAI set;

and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the first intersection to obtain the priority of the first VPLMN.

2. The method of claim 1, further comprising:

the terminal equipment determines the priority of a second VPLMN according to second information and the priority of each S-NSSAI in the S-NSSAI set, wherein the second information is the configured NSSAI of the second VPLMN;

and if the priority of the second VPLMN is higher than that of the first VPLMN, the terminal equipment sends a registration request message to network equipment, wherein the registration request message is used for registering the second VPLMN.

3. The method of claim 2, wherein the second information includes mapping S-NSSAI;

the terminal device determines the priority of the second VPLMN according to the second information and the priority of each S-NSSAI in the S-NSSAI set, including:

the terminal equipment acquires a second intersection, wherein the second intersection comprises the S-NSSAI which is the same as the mapping S-NSSAI included by the second information in the S-NSSAI included by the S-NSSAI set;

and the terminal equipment performs summation calculation on the priority of the S-NSSAI in the second intersection to obtain the priority of the second VPLMN.

4. The method according to any one of claims 1-3, further comprising:

and the terminal equipment receives third information sent by network equipment, wherein the third information is used for indicating the terminal equipment to change the URSP.

5. A method according to any of claims 1-3, wherein the first parameters comprise a frequency of use of each application in the application list and/or a type of each application in the application list.

6. The method according to any of claims 1-3, wherein the URSP comprises a plurality of URSP rules, each URSP rule comprising an application and a corresponding routing description to apply, the routing description comprising an S-NSSAI;

the terminal device determines an S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to the URSP, each application in the application list, and the priority of each application, and includes:

step a: the terminal equipment selects a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions;

step b: the terminal equipment traverses the selected first routing description, selects a temporary S-NSSAI from each first routing description, and determines the priority of the temporary S-NSSAI according to the priority of the application corresponding to the temporary S-NSSAI;

step c: the terminal equipment adds all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs;

step d: the terminal equipment judges whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, the steps a-d are executed until the unselected routing description does not exist in the URSP;

step e: and the terminal equipment determines the priority of each S-NSSAI in the S-NSSAI set according to the sequence of each S-NSSAI in the S-NSSAI set.

7. The method according to claim 6, wherein the temporary S-NSSAI is the S-NSSAI with the largest fanout among the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, and wherein the fanout of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI.

8. A communication apparatus, characterized in that the communication apparatus comprises: a processor;

the processor is used for determining the priority of each application in an application list according to a first parameter, wherein the application list comprises at least one application;

the processor is further configured to determine a single network slice selection assistance information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to a routing policy URSP, each application in the application list, and the priority of each application;

the processor is further configured to determine a priority of a first public land mobile network, VPLMN, according to first information and a priority of each S-NSSAI in the set of S-NSSAIs, where the first information is configuration network slice selection assistance information, NSSAI, of the first VPLMN;

wherein the first information comprises a mapping S-NSSAI;

the processor is further specifically configured to obtain a first intersection, where the first intersection includes, of the S-NSSAIs included in the S-NSSAI set, the S-NSSAI that is the same as the mapping S-NSSAI included in the first information;

the processor is further specifically configured to sum priorities of the S-NSSAIs in the first aggregation to obtain a priority of the first VPLMN.

9. The communications device of claim 8, further comprising: a communication interface;

the processor is further configured to determine a priority of a second VPLMN according to second information and a priority of each S-NSSAI in the set of S-NSSAIs, where the second information is a configured NSSAI of the second VPLMN;

the communication interface is configured to send a registration request message to a network device if the priority of the second VPLMN is higher than the priority of the first VPLMN, where the registration request message is used to register the second VPLMN.

10. The communications device of claim 9, wherein the second information includes a mapping S-NSSAI;

the processor is further specifically configured to obtain a second intersection, where the second intersection includes, of the S-NSSAIs included in the S-NSSAI set, the S-NSSAI that is the same as the S-NSSAI included in the second information;

the processor is further specifically configured to sum the priorities of the S-NSSAIs in the second aggregation to obtain a priority of the second VPLMN.

11. The communication device according to any one of claims 8 to 10,

and the communication interface is further used for receiving third information sent by the network equipment, wherein the third information is used for indicating the communication device to change the URSP.

12. A communication apparatus according to any of claims 8-10, wherein the first parameter comprises a frequency of use of each application in the application list and/or a type of each application in the application list.

13. The communications apparatus according to any of claims 8-10, wherein the URSP comprises a plurality of URSP rules, each URSP rule comprising an application and a corresponding routing description to apply, the routing description comprising an S-NSSAI;

the processor is specifically configured to execute step a, step b, step c, step d, and step e;

wherein the step a is as follows: selecting a first routing description corresponding to each application included in the application list; the first routing description is a routing description with the highest priority in all the routing descriptions corresponding to the application and unselected routing descriptions;

the step b is as follows: traversing the selected first routing description, selecting a temporary S-NSSAI from each first routing description, and determining the priority of the temporary S-NSSAI according to the application priority corresponding to the temporary S-NSSAI;

the step c is as follows: adding all temporary S-NSSAIs into the S-NSSAI set according to the priority order of the temporary S-NSSAIs;

the step d is as follows: judging whether the routing description corresponding to the application included in the application list exists unselected routing description, if yes, executing the steps a-d until the unselected routing description does not exist in the URSP;

the step e is as follows: determining a priority for each S-NSSAI in the set of S-NSSAIs based on an order of each S-NSSAI in the set of S-NSSAIs.

14. The communication device according to claim 13, wherein the temporary S-NSSAI is an S-NSSAI with the largest fan-out among the S-NSSAIs included in the first routing description corresponding to the temporary S-NSSAI, and wherein the fan-out of the S-NSSAI is determined by the number of applications corresponding to the S-NSSAI.

15. A communication apparatus, characterized in that the communication apparatus comprises: a determination module;

the determining module is used for determining the priority of each application in an application list according to a first parameter, wherein the application list comprises at least one application;

the determining module is further configured to determine a single network slice selection assistance information S-NSSAI set and a priority of each S-NSSAI in the S-NSSAI set according to a routing policy URSP, each application in the application list, and a priority of each application;

the determining module is further configured to determine a priority of a first public land mobile network, VPLMN, according to first information and a priority of each S-NSSAI in the set of S-NSSAIs, where the first information is configuration network slice selection assistance information NSSAI of the first VPLMN;

wherein the first information comprises a mapping S-NSSAI;

the determining module is further configured to obtain a first intersection set, where the first intersection set includes S-NSSAIs that are the same as the mapped S-NSSAIs included in the first information, in the S-NSSAIs included in the S-NSSAI set;

the determining module is further configured to perform summation calculation on the priority of the S-NSSAI in the first aggregation to obtain the priority of the first VPLMN.

16. A system-on-chip for use in a terminal device, the system-on-chip comprising:

at least one processor in which program instructions are executed to implement the functions of the terminal device in the method of any one of claims 1-7.

17. A computer-readable storage medium having program instructions stored therein, wherein the program instructions, when executed by a computer, implement the functions of a terminal device as recited in any one of claims 1-7.

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