CN115426698A

CN115426698A - Configuration method and device of routing strategy and computer readable storage medium

Info

Publication number: CN115426698A
Application number: CN202211046150.7A
Authority: CN
Inventors: 任驰; 马泽芳; 邢天齐
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-02

Abstract

The application provides a method and a device for configuring a routing strategy and a computer readable storage medium, relates to the field of communication, and can enable a UE SP configured by a home network to accurately guide the routing of UE, thereby improving the user experience. The method comprises the following steps: an H-PCF network element in a home network of the UE acquires a first message of a V-PCF network element in a visited network of the UE; the first message comprises a location identifier of the visited network and first request information, the first request information is used for requesting a first URSP of the UE in the visited network, and the first URSP corresponds to the location identifier; determining a first URSP according to the position identifier; sending a first response message to the V-PCF network element; the first response message includes a first URSP.

Description

Configuration method and device of routing strategy and computer readable storage medium

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for configuring a routing policy, and a computer-readable storage medium.

Background

Currently, in the third generation partnership project (3 GPP), a fifth generation mobile communication technology (the 5th generation mobile communication, 5G) core network defines a user equipment routing policy (URSP), the URSP defines a configuration and management policy of service levels in an important way, and provides a flexible configuration and management means for functions such as network slice, service, and session continuity defined by the 5G core network.

The URSP is determined by the home network of the User Equipment (UE), which configures the URSP of the UE to the visited network when the UE roams to the visited network.

In practical application, because the network topology information of different regions is different, the routing deployment schemes of the application server of the same service in different regions are also different, the home network cannot sense the network topology information of other visited networks, and the URSPs sent by the home network to different visited networks are the same. The same URSP cannot be applied to all visited networks, and therefore, when the visited networks are different, the URSP configured by the home network cannot accurately guide the routing of the UE, thereby reducing user experience.

Disclosure of Invention

The application provides a method and a device for configuring a routing strategy and a computer readable storage medium, which can enable a UE SP configured by a home network to accurately guide the routing of the UE and improve user experience.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, a method for configuring a routing policy is provided, where the method is applied to a home policy control function H-PCF network element in a home network of a user equipment UE, and the method includes: acquiring a first message of a visit policy control function V-PCF network element in a visit network of UE; the first message comprises a location identifier of the visited network and first request information, wherein the first request information is used for requesting a routing strategy URSP of the UE in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; determining a first URSP according to the position identifier; sending a first response message to the V-PCF network element; the first response message includes the first URSP.

With reference to the first aspect, in some embodiments of the first aspect, determining the first URSP based on the location identity includes: determining a first URSP according to the position identification and a preset corresponding relation; the preset correspondence includes a correspondence between the location identifier and the first URSP.

With reference to the first aspect, in certain embodiments of the first aspect, the first message further includes first indication information for indicating that the UE includes an unavailable second URSP, and the first response message further includes second indication information for indicating that the UE removes the second URSP.

In a second aspect, a method for configuring a routing policy is provided, where the method is applied to a visited policy control function V-PCF network element in a visited network of a user equipment UE, and the method includes: acquiring a second message of a first access and mobility management function (AMF) network element in a visited network of the UE; the first AMF network element is an AMF network element accessed by the UE currently, the second message comprises a position identifier of the visited network and second request information, the second request information is used for requesting the UE to select a URSP (routing policy for the first user equipment) in the visited network, and the first URSP corresponds to the position identifier; sending a first message to a home policy control function (H-PCF) network element in a home network of the UE; the first message comprises a position identifier and first request information, and the first request information is used for requesting a first URSP; acquiring a first response message of an H-PCF network element; the first response message includes a first URSP; sending a second response message to the first AMF network element; the second response message includes the first URSP.

With reference to the second aspect, in some embodiments of the second aspect, the second message further includes third indication information indicating that the UE includes an unavailable second URSP, the first message further includes first indication information indicating that the UE includes a second URSP, the first response message further includes second indication information indicating that the UE removes the second URSP, the second response message further includes fourth indication information indicating that the UE removes the second URSP.

In a third aspect, a method for configuring a routing policy is provided, where the method is applied to an AMF network element with a first access and mobility management function, and the first AMF network element is an AMF network element currently accessed by a UE, and the method includes: sending a second message to a visit policy control function V-PCF network element of the visit network; the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting the UE to select a routing strategy URSP in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; acquiring a second response message of the V-PCF; the second response message includes the first URSP; sending a third response message to the UE; the third response message includes the first URSP.

With reference to the third aspect, in certain embodiments of the third aspect, the method further comprises: acquiring a third message of the UE; the third message is used for requesting the UE to register in the visiting network; generating user information of the UE in response to the third message; the user information comprises a public land mobile network identity, PLMN ID, of the visited network and a current tracking area identity, TAI, of the UE.

With reference to the third aspect, in some embodiments of the third aspect, the UE changes access from the second AMF network element to the first AMF network element, and the method further includes: acquiring a fourth message of a second AMF network element; the fourth message comprises a public land mobile network identifier (PLMN ID) corresponding to the second AMF network element and a Tracking Area (TA) list corresponding to the second AMF network element; determining that the second message further comprises third indication information according to the fourth message and a preset condition; the third indication information is used for indicating that the UE includes an unavailable second URSP, and the preset condition is that a PLMN ID corresponding to the second AMF network element is the same as a PLMN ID corresponding to the first AMF network element, and a management area corresponding to the first AMF network element is not in the TA list and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

With reference to the third aspect, in some embodiments of the third aspect, the second response message further includes fourth indication information for indicating the UE to remove the second URSP, and the third response message further includes fifth indication information for indicating the UE to remove the second URSP.

In a fourth aspect, a method for configuring a routing policy of the first aspect is provided. The H-PCF network element is located in a home network of the user equipment UE, and the H-PCF network element includes a module, a unit, or means (means) corresponding to the implementation of the above method, and the module, the unit, or the means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the fourth aspect, in some embodiments of the fourth aspect, the H-PCF network element comprises: the device comprises an acquisition module, a sending module and a processing module; the acquisition module is used for acquiring a first message of a visit policy control function V-PCF network element in a visit network of the UE; the first message comprises a location identifier of the visited network and first request information, wherein the first request information is used for requesting a routing strategy URSP of the UE in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; the processing module is used for determining a first URSP according to the position identifier; the sending module is also used for sending a first response message to the V-PCF network element; the first response message includes a first URSP.

With reference to the fourth aspect, in some embodiments of the fourth aspect, the processing module is specifically configured to: determining a first URSP according to the position identification and a preset corresponding relation; the preset correspondence includes a correspondence between the location identifier and the first URSP.

With reference to the fourth aspect, in some embodiments of the fourth aspect, the first message further includes first indication information indicating that the UE includes an unavailable second URSP, and the first response message further includes second indication information indicating that the UE removes the second URSP.

In a fifth aspect, a configuration method for a V-PCF network element to implement the routing policy of the first aspect is provided. The V-PCF network element is located in a home network of the user equipment UE, and the V-PCF network element includes a module, a unit, or means (means) corresponding to the implementation of the above method, and the module, the unit, or the means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the fifth aspect, in some embodiments of the fifth aspect, the V-PCF network element comprises: a sending module and an obtaining module; the acquisition module is used for acquiring a second message of a first access and mobility management function (AMF) network element in a visited network of the UE; the first AMF network element is an AMF network element which is accessed by the UE currently, the second message comprises a position identifier of the visited network and second request information, the second request information is used for requesting the UE to select a routing strategy URSP in the first user equipment of the visited network, and the first URSP corresponds to the position identifier; the sending module is used for sending a first message to a home policy control function H-PCF network element in a home network of the UE; the first message comprises a position identifier and first request information, and the first request information is used for requesting a first URSP; the acquisition module is also used for acquiring a first response message of the H-PCF network element; the first response message includes a first URSP; the sending module is further configured to send a second response message to the first AMF network element; the second response message includes the first URSP.

With reference to the fifth aspect, in certain embodiments of the fifth aspect, the second message further includes third indication information indicating that the UE includes an unavailable second URSP, the first message further includes first indication information indicating that the UE includes a second URSP, the first response message further includes second indication information indicating that the UE removes the second URSP, the second response message further includes fourth indication information indicating that the UE removes the second URSP.

In a sixth aspect, a configuration method for a first AMF network element to implement the routing policy of the first aspect is provided. The first AMF network element is an AMF network element currently accessed by the UE, and the first AMF network element includes a module, a unit, or means (means) corresponding to the implementation of the method, and the module, the unit, or the means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the sixth aspect, in some embodiments of the sixth aspect, the first AMF network element comprises: the device comprises an acquisition module and a sending module; the sending module is used for sending a second message to a visit policy control function V-PCF network element of the visit network; the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting the UE to select a routing strategy URSP in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; the acquisition module is used for acquiring a second response message of the V-PCF; the second response message includes the first URSP; the sending module is further used for sending a third response message to the UE; the third response message includes the first URSP.

With reference to the sixth aspect, in some embodiments of the sixth aspect, the first AMF network element further comprises: a processing module; the processing module is used for acquiring a third message of the UE; the third message is used for requesting the UE to register in the visiting network; the processing module is further used for responding to the third message and generating user information of the UE; the user information comprises a public land mobile network identity, PLMN ID, of the visited network and a current tracking area identity, TAI, of the UE.

With reference to the sixth aspect, in some embodiments of the sixth aspect, the UE changes access from the second AMF network element to the first AMF network element, and the first AMF network element further includes: a processing module; the processing module is used for acquiring a fourth message of the second AMF network element; the fourth message comprises a public land mobile network identifier (PLMN ID) corresponding to the second AMF network element and a Tracking Area (TA) list corresponding to the second AMF network element; the processing module is used for determining that the second message further comprises third indication information according to the fourth message and preset conditions; the third indication information is used for indicating that the UE includes an unavailable second URSP, and the preset condition is that a PLMN ID corresponding to the second AMF network element is the same as a PLMN ID corresponding to the first AMF network element, and a management area corresponding to the first AMF network element is not in the TA list and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

With reference to the sixth aspect, in some embodiments of the sixth aspect, the second response message further includes fourth indication information for indicating the UE to remove the second URSP, and the third response message further includes fifth indication information for indicating the UE to remove the second URSP.

In a seventh aspect, an H-PCF network element is provided, including: at least one processor, a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method as provided by the first aspect and any one of its possible implementations.

In an eighth aspect, there is provided a V-PCF network element, comprising: at least one processor, a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method as provided by the second aspect and any one of its possible embodiments.

In a ninth aspect, there is provided a first AMF network element, including: at least one processor, a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method as provided by the third aspect and any of its possible embodiments.

In a tenth aspect, a computer-readable storage medium is provided, in which instructions that, when executed by a processor of an H-PCF network element, enable the H-PCF network element to perform the method as provided in the first aspect and any one of its possible implementations.

In an eleventh aspect, there is provided a computer-readable storage medium having instructions which, when executed by a processor of a V-PCF network element, enable the V-PCF network element to perform the method as provided by the second aspect and any one of its possible embodiments.

In a twelfth aspect, there is provided a computer-readable storage medium, wherein the instructions of the computer-readable storage medium, when executed by the processor of the first AMF network element, enable the first AMF network element to perform the method as provided in the third aspect and any of its possible embodiments.

In a thirteenth aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform the method provided by the first aspect and any possible implementation thereof.

In a fourteenth aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform the method provided by the second aspect and any one of its possible embodiments.

In a fifteenth aspect, a computer program product containing instructions is provided, which when run on a computer, causes the computer to perform the method provided by the third aspect and any possible implementation thereof.

In a sixteenth aspect, a chip system is provided, comprising: a processor and interface circuitry; an interface circuit for receiving a computer program or instructions and transmitting the same to a processor; the processor is adapted to execute the computer program or instructions to cause the system on chip to perform the method as provided in the first aspect and any possible implementation thereof.

In a seventeenth aspect, a chip system is provided, comprising: a processor and an interface circuit; an interface circuit for receiving a computer program or instructions and transmitting the same to a processor; the processor is adapted to execute the computer program or instructions to cause the system on chip to perform the method as provided in the second aspect and any possible implementation thereof.

In an eighteenth aspect, there is provided a chip system comprising: a processor and interface circuitry; an interface circuit for receiving a computer program or instructions and transmitting the same to a processor; the processor is configured to execute the computer program or instructions to cause the system on chip to perform the method according to the third aspect and any possible implementation manner thereof.

For technical effects brought by any one of the embodiments in the fourth aspect to the eighteenth aspect, reference may be made to technical effects brought by different embodiments in the above corresponding aspects, and details are not repeated herein.

Drawings

Fig. 1 is a schematic architecture diagram of a configuration system of a routing policy provided in the present application;

fig. 2 is a schematic flowchart of a method for configuring a routing policy provided in the present application;

fig. 3 is a schematic flow chart of another method for configuring a routing policy provided in the present application;

fig. 4 is a schematic flowchart of a method for configuring a routing policy provided in the present application;

fig. 5 is a schematic flowchart of a method for configuring a routing policy provided in the present application;

fig. 6 is a schematic flowchart of another routing policy configuration method provided in the present application;

fig. 7 is an interaction diagram of a configuration method of a routing policy provided in the present application;

fig. 8 is an interaction diagram of another routing policy configuration method provided in the present application;

fig. 9 is a schematic structural diagram of an H-PCF network element provided in the present application;

fig. 10 is a schematic structural diagram of a V-PCF network element provided in the present application;

fig. 11 is a schematic structural diagram of a first AMF network element provided in the present application;

fig. 12 is a schematic structural diagram of another H-PCF network element provided in the present application;

fig. 13 is a schematic structural diagram of another V-PCF network element provided in the present application;

fig. 14 is a schematic structural diagram of another first AMF network element provided in this application.

Detailed Description

In the description of the present application, "plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance. Also, in the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic of the processes, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should be understood that in the present application, "when" \8230am "means that a corresponding process is performed under an objective condition, and is not limited to a certain time, and does not require an action of necessarily judging when implemented, and does not mean that there are other limitations.

It can be understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, for example, a scheme based on which the optional features are currently implemented, so as to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

In this application, the same or similar parts between the respective embodiments may be referred to each other unless otherwise specified. In the embodiments and the implementations/implementation methods in the embodiments in the present application, unless otherwise specified or conflicting in terms of logic, terms and/or descriptions between different embodiments and between the implementations/implementation methods in the embodiments have consistency and may be mutually cited, and technical features in different embodiments and implementations/implementation methods in the embodiments may be combined to form a new embodiment, implementation method, or implementation method according to the inherent logic relationship. The following embodiments of the present application do not limit the scope of the present application.

In 3GPP, a URSP is defined in a 5G core network, the URSP defines a configuration and management policy of a service level with emphasis, and the URSP can provide a flexible configuration and management means for functions such as network slicing, continuity of services and sessions, and the like defined by the 5G core network. Table 1 below is an example of a current URSP provided herein.

Table 1: existing URSP

As shown in table 1, the URSP includes a rule priority, a traffic descriptor, and one or more lists of routing descriptors.

Among them, the rule priority must be included in the URSP. The rule priority includes an order of execution of the URSP among the plurality of URSPs of the UE. For example, the first of the plurality of URSPs of the UE performs.

Traffic descriptors must be included in the URSP. The traffic descriptors include one or more of application descriptors, IP descriptors, domain descriptors, non-IP descriptors, DNN connectivity capabilities.

Application descriptors may be included in the URSP. The application descriptor includes the OSId and the osipid.

IP descriptors may be included in the URSP. The IP descriptor comprises a destination IP triple, and the destination IP triple comprises an IP address or an IPv6 prefix, a port number and a protocol ID of an IP upper layer protocol.

A domain descriptor may be included in the URSP. The domain descriptor includes a destination FQDN.

non-IP descriptors may be included in the URSP. The non-IP descriptors include destination information descriptors of non-IP traffic.

DNNs may be included in the URSPs. The DNN includes service provided DNN information.

Connection capabilities may be included in the URSP. When the UE application requests a network connection of a particular capability, the connection capability includes connection capability information provided by the UE application.

For the specific description of each parameter, reference may be made to the description in the existing scheme, and details are not described herein again.

A list of routing descriptors must be included in the URSP. The number of the routing descriptor lists may be 1 or more. Table 2 below provides an example of an existing routing descriptor list provided by the present application.

Table 2: existing routing descriptor lists

As shown in table 2, a routing descriptor list includes routing descriptor list priorities and routing components.

Wherein the routing descriptor list must include a routing descriptor list priority. The routing descriptor list priority includes an order of execution of the routing descriptor list in the plurality of routing descriptor lists.

The routing descriptor list must include routing components. The routing components include one or more of SSC mode selection, network slice selection, DNN selection, PDU session type selection.

The routing descriptor list may include SSC pattern selection. The SSC pattern selection includes a value of SSC.

The list of routing descriptors may include a network slice selection, which includes a value of S-NSSAI.

The list of routing descriptors may include DNN selections. The DNN selection includes a value of DNN.

The routing descriptor list may include PDU session type selection. The PDU session type selection includes a value for the PDU session type.

The service in the UE may access to the corresponding network resource, such as a data network and a network slice, through the specific identifier in the URSP, such as DNN and S-NSSAI, and communicate through the specific network resource, which may improve user experience.

In practical applications, the URSPs sent by the home network to different visited networks are the same. The same URSP cannot be applied to all visited networks, and therefore, when the visited networks are different, the URSP configured by the home network cannot accurately guide the routing of the UE, thereby reducing the user experience.

The configuration method of the routing strategy provided by the application can enable the UESP to accurately guide the routing of the UE, and avoids reducing user experience.

Fig. 1 is a schematic architecture diagram of a configuration system of a routing policy provided in the present application. As shown in fig. 1, the configuration system of the routing policy includes a UE, a home policy control function (H-PCF) network element, a visit policy control function (V-PCF) network element, and a first access and mobility management function (AMF) network element.

The H-PCF network element is directly connected or indirectly connected with the V-PCF network element, which is not limited in the embodiment of the present application.

The V-PCF network element is directly connected or indirectly connected to the first AMF network element, which is not limited in this embodiment of the present application.

The UE is directly connected or indirectly connected to the first AMF network element, which is not limited in this embodiment of the present application.

The H-PCF network element is mainly responsible for providing URSP to the V-PCF network element.

The V-PCF network element is primarily responsible for providing the URSP to the first AMF network element.

The first AMF network element is primarily responsible for providing the URSP to the UE.

The related functions of the UE, the H-PCF network element, the V-PCF network element, and the first AMF network element related to the present application may be implemented by one device, or may be implemented by multiple devices together, or may be implemented by one or more functional modules in one device, or may be one or more chips, or may be a System On Chip (SOC) or a chip system, where the chip system may be formed by chips, or may include chips and other discrete devices, which is not specifically limited in this embodiment of the present application.

It is to be understood that the above functions may be network elements in a hardware device, or may be software functions running on dedicated hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (e.g., a cloud platform).

The following describes a configuration method of a routing policy provided in the embodiment of the present application, with reference to the configuration system of the routing policy shown in fig. 1.

In the following embodiments of the present application, a name of a message, a name of each parameter, a name of each information, and the like between each device are merely examples, and may be other names in other embodiments, and the method provided in the present application is not limited to this.

It is to be understood that, in the embodiments of the present application, each 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 various modifications of the 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.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for configuring a routing policy provided in the present application, where the method may be applied to an H-PCF network element in a system for configuring a routing policy shown in fig. 1, and the method may include:

s201, the H-PCF network element acquires a first message of a V-PCF network element in a visited network of the UE.

The first message comprises a location identifier of the visited network and first request information, the first request information is used for requesting a first URSP of the UE in the visited network, and the first URSP corresponds to the location identifier.

It should be noted that, in the case that the unavailable URSP is not included in the UE, the first message may be a URSP association request message.

In the case where an unavailable URSP is included in the UE, the first message may be a URSP reassociation request message.

For the specific description on whether the UE includes the unavailable URSP, reference may be made to the related description in the subsequent section, which is not repeated herein.

In case the UE roams between different Public Land Mobile Networks (PLMNs), e.g., internationally, the location identity of the visited network may be a public land mobile network identity (PLMN ID) of the visited network.

In a case that the UE performs inter-province or inter-regional roaming in the same PLMN, the location identifier of the visited network may be a Tracking Area Identity (TAI) of the UE.

The present application does not limit the specific form of the first request message.

S202, the H-PCF network element determines a first URSP according to the position identification.

As a possible implementation manner, the H-PCF determines the first URSP according to the location identifier and the preset corresponding relationship.

It should be noted that for specific descriptions of the possible implementation manners, reference may be made to descriptions of subsequent parts, and details of the application are not repeated herein.

S203, the H-PCF network element sends a first response message to the V-PCF network element.

Wherein the first response message includes the first URSP.

It should be noted that, in the case that the unavailable URSP is not included in the UE, the first response message may be a URSP association response message.

In the case where an unavailable URSP is included in the UE, the first message may be a URSP reassociation response message.

Based on the scheme, the H-PCF network element determines a corresponding first URSP through the position identification by acquiring a first message comprising the position identification of the visited network, and sends the first URSP to the V-PCF network element. Compared with the scheme that the home network sends the same URSP to different visited networks to cause the URSP to be incapable of accurately guiding the routing of the UE in the prior art, the scheme of the application sends the first URSP corresponding to the location identifier of the visited network to the V-PCF network element, so that the first URSP can be transmitted to the UE, the first URSP can accurately guide the routing of the UE, and the user experience is further improved.

The above has generally described the scheme of the present application from the perspective of an H-PCF network element, which will be further described below from the perspective of an H-PCF network element.

In one design, S202 in the embodiment of the present application specifically includes:

and the H-PCF network element determines a first URSP according to the position identification and the preset corresponding relation.

Wherein the preset corresponding relationship comprises a corresponding relationship between the location identifier and the first URSP.

Table 3 below is a first URSP example provided by the present application.

Table 3: first URSP

As shown in table 3, a location identifier must be included in the first URSP. The location identity is used to indicate the area where the first URSP is applicable.

For the description of other parts in table 3, reference may be made to the description of table 1 above, which is not repeated herein.

As a possible implementation manner, the H-PCF network element searches for a URSP with the same location identifier as the location identifier of the visited network in the plurality of URSPs with preset correspondence, and determines the URSP as the first URSP.

Based on the scheme, the H-PCF network element can realize the scheme of determining the first URSP according to the position identification.

In one design, the first message further includes first indication information indicating that the UE includes an unavailable second URSP, and the first response message further includes second indication information indicating that the UE removes the second URSP.

It should be noted that, in the case that the UE changes to access the AMF network element, and the URSP in the UE is no longer applicable or the UE changes to access the PLMN, the first message includes the first indication information, and the first response message includes the second indication information.

The specific form of the first indication information and the second indication information is not limited in the present application.

Based on the scheme, in the case that the first indication information for indicating that the UE includes the unavailable second URSP is included in the first message, by including the second indication information for indicating that the UE removes the second URSP in the first response message, the UE can be enabled to remove the unavailable second URSP, avoid the second URSP from affecting the storage performance of the UE, and avoid the UE from using the unavailable second URSP to guide the routing of the UE, resulting in a problem of degraded user experience.

The above is a description of the solution of the present application from the perspective of an H-PCF network element, and the following description is a description of the solution of the present application from the perspective of a V-PCF network element.

Fig. 3 is a schematic flowchart of a method for configuring a routing policy provided in the present application, where as shown in fig. 3, the method is applied to a V-PCF network element in a visited network of a UE, and the method includes:

s301, the V-PCF network element obtains a second message of the first AMF network element in the visit network of the UE.

The first AMF network element is an AMF network element accessed by the UE currently, the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting a first URSP of the UE in the visited network, and the first URSP corresponds to the location identifier.

It should be noted that the second message may be the same as the first message, and the second message may also be different from the first message.

And under the condition that the second message is the same as the first message, the position identifier of the visited network in the second message is the same as the position identifier of the visited network in the first message, and the specific form of the second request information in the second message is the same as the specific form of the first request information in the first message.

In the case that the second message is different from the first message, the location identifier of the visited network in the second message is the same as the location identifier of the visited network in the first message, and the specific form of the second request information in the second message may be different from the specific form of the first request information in the first message.

In the case where the second message is different from the first message, the present application does not limit the specific form of the second message and the specific form of the second request information.

S302, the V-PCF network element sends a first message to an H-PCF network element in a home network of the UE.

The first message includes a location identifier and first request information, and the first request information is used for requesting the first URSP.

As a possible implementation manner, in the case that the second message is the same as the first message, the V-PCF network element forwards the second message to the H-PCF network element in the home network of the UE.

It should be noted that, for specific description of the first message, reference may be made to the related description in S201, and details of this application are not described herein again.

S303, the V-PCF network element acquires the first response message of the H-PCF network element.

Wherein the first response message includes the first URSP;

it should be noted that, for specific description of the first response message, reference may be made to the related description in S203, and details of this application are not repeated herein.

For specific description of the first URSP, refer to table 3 and related description thereof, which are not repeated herein.

And S304, the V-PCF network element sends a second response message to the first AMF network element.

Wherein the second response message includes the first URSP.

It should be noted that the second response message may be the same as the first response message, and the second response message may also be different from the first response message.

As a possible implementation manner, in the case that the second response message is the same as the first response message, the V-PCF network element forwards the first response message to the first AMF network element.

In the case that the second response message is different from the first response message, the application does not limit the specific form of the second response message.

Based on the scheme, the V-PCF network element acquires the position identification information of the visited network, sends the position identification of the visited network to the H-PCF network element, acquires a first URSP corresponding to the position information from the H-PCF network element, and sends the first URSP to the first AMF network element. Compared with the scheme that the routing of the UE cannot be accurately guided by the URSP due to the fact that the URSP is the same as the URSP obtained by the home network in different visiting networks in the prior art, the V-PCF network element of the scheme obtains the first URSP corresponding to the position identification of the visiting network and sends the first URSP to the first AMF network element, so that the first URSP can be transmitted to the UE, the first URSP can accurately guide the routing of the UE, and user experience is improved.

The above is a general description of the solution of the present application from the perspective of a V-PCF network element, which is further described below from the perspective of a V-PCF network element.

In one design, the second message further includes third indication information indicating that the UE includes an unavailable second URSP, the first message further includes first indication information indicating that the UE includes a second URSP, the first response message further includes second indication information indicating that the UE removes the second URSP, the second response message further includes fourth indication information indicating that the UE removes the second URSP.

It should be noted that, in the case that the UE changes to access the AMF network element, and the URSP in the UE is no longer applicable or the UE changes to access the PLMN, the second message includes the third indication information, the first message includes the first indication information, the first response message includes the second indication information, and the second response message includes the fourth indication information.

In the case that the second message is identical to the first message, the third indication information in the second message is identical to the first indication information in the first message.

In the case that the second message is different from the first message, the application does not limit the specific form of the third indication information.

In the case that the second response message is identical to the first response message, the specific form of the fourth indication information in the second response message is identical to the specific form of the second indication information in the first response message.

In the case that the second response message is different from the first response message, the application does not limit the specific form of the fourth indication information.

Based on the scheme, in the case that the second message includes the third indication information for indicating that the UE includes the unavailable second URSP, by including the fourth indication information for indicating that the UE removes the second URSP in the second response message, the UE can be enabled to remove the unavailable second URSP, avoid the second URSP from affecting the storage performance of the UE, and avoid the UE from using the unavailable second URSP to guide the routing of the UE, resulting in a problem of degraded user experience.

The above has described the solution of the present application from the perspective of the V-PCF network element, and the solution of the present application will be described below from the perspective of the first AMF network element.

Fig. 4 is a schematic flowchart of a method for configuring a routing policy provided in the present application, where as shown in fig. 4, the method is applied to a first AMF network element, where the first AMF network element is an AMF network element currently accessed by a UE, and the method includes:

s401, the first AMF network element sends a second message to the V-PCF network element of the visit network.

The second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting a first URSP of the UE in the visited network, and the first URSP corresponds to the location identifier.

It should be noted that the first AMF network element may be an AMF network element of a visited network of the UE, and the first AMF network element may also be an AMF network element of a home network of the UE.

Fig. 4 is an example of an AMF network element of a visited network in which the first AMF network element is a UE. For a specific description in the case that the first AMF network element is an AMF network element of a home network of the UE, reference may be made to the related description in fig. 8, which is not repeated herein.

For specific description of the second message, reference may be made to the related description in S301, which is not described herein again.

S402, the first AMF network element acquires a second response message of the V-PCF.

Wherein the second response message includes the first URSP.

It should be noted that, for specific description of the second response message, reference may be made to the related description in S304, and details of this application are not described herein again.

And S403, the first AMF network element sends a third response message to the UE.

Wherein the third response message includes the first URSP.

It should be noted that the third response message may be the same as the second response message, and the second response message may also be different from the second response message.

As a possible implementation manner, in a case that the third response message is the same as the second response message, the first AMF network element forwards the second response message to the UE.

In the case that the third response message is different from the second response message, the application does not limit the specific form of the third response message.

Based on the scheme, the first AMF network element sends the location identifier of the visited network to the V-PCF network element, acquires a first URSP corresponding to the location information from the V-PCF network element, and sends the first URSP to the UE. Compared with the scheme that the routing of the UE cannot be accurately guided by the URSP due to the fact that the URSP is the same as the URSP of the home network acquired by different visited networks in the prior art, the first AMF network element of the scheme of the application acquires the first URSP corresponding to the position identifier of the visited network and sends the first URSP to the UE, so that the first URSP can accurately guide the routing of the UE, and user experience is improved.

The above is a general description of the solution of the present application from the perspective of the first AMF network element, and the solution of the present application will be further described below from the perspective of the first AMF network element.

In one design, fig. 5 is a schematic flowchart of a further method for configuring a routing policy provided by the present application, and as shown in fig. 5, before S401, the method for configuring a routing policy provided by the present application in a specific embodiment further includes:

s501, the first AMF network element acquires a third message of the UE.

Wherein the third message is for requesting the UE to register in the visited network.

It should be noted that the third message may be a registration request message.

And S502, the first AMF network element responds to the third message to generate the user information of the UE.

Wherein the user information includes a PLMN ID of the visited network and a current TAI of the UE.

It should be noted that the UE user information may be a mobility management context of the UE.

Based on the scheme, by acquiring a third message of the UE for requesting registration in the visited network and responding to the third message, the user information of the UE, which comprises the PLMN ID of the visited network and the current TAI of the UE, is created, the PLMN ID of the visited network and the current TAI of the UE can be generated under the condition that the UE is accessed to the visited network for the first time, so that a first URSP corresponding to the PLMN ID of the visited network or the current TAI of the UE is sent to the UE in the following, the first URSP can accurately guide the routing of the UE, and further the user experience is improved.

In one design, fig. 6 is a schematic flowchart of a method for configuring a routing policy provided by the present application, where as shown in fig. 6, before S401, in a case that a UE changes access from a second AMF network element to a first AMF network element, a method provided by an embodiment of the present application further includes:

s601, the first AMF network element obtains a fourth message of the second AMF network element.

The fourth message includes a PLMN ID corresponding to the second AMF network element and a Tracking Area (TA) list corresponding to the second AMF network element.

It should be noted that the second AMF network element may belong to the same PLMN as the first AMF network element, or the second AMF network element may belong to a different PLMN from the first AMF network element, which is not limited in this application.

The fourth message may be a mobility management context request message of the UE.

And S602, the first AMF network element determines that the second message further comprises third indication information according to the fourth message and preset conditions.

Wherein the third indication information is used for indicating that the UE comprises an unavailable second URSP. The preset condition is that the PLMN ID corresponding to the second AMF network element is the same as the PLMN ID corresponding to the first AMF network element, and the management area corresponding to the first AMF network element is not in the TA list, and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

It should be noted that the management area corresponding to the first AMF network element may be a TAI of the first AMF network element.

For a specific description of the third indication information, reference may be made to the above description related to the V-PCF network element angle, which is not described herein again.

As a possible implementation, in a case that the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element, the first AMF network element determines that the second message further includes the third indication information.

As another possible implementation, when the PLMN ID corresponding to the second AMF network element is the same as the PLMN ID corresponding to the first AMF network element and the management area corresponding to the first AMF network element is not in the TA list, the first AMF network element determines that the second message further includes the third indication information.

Based on the scheme, when the UE changes the access from the second AMF network element to the first AMF network element, that is, the UE changes the access AMF network element, the first AMF network element can enable the V-PCF network element to know that the UE includes the unavailable second URSP by obtaining the fourth message and determining that the second message further includes third indication information for indicating that the UE includes the unavailable second URSP according to the fourth message and the preset condition, so that the UE can subsequently remove the unavailable second URSP, the second URSP is prevented from affecting the storage performance of the UE, and the UE is prevented from using the unavailable second URSP to guide the routing selection of the UE, which results in the problem of user experience degradation.

In one design, the second response message further includes fourth indication information indicating that the UE removed the second URSP, and the third response message further includes fifth indication information indicating that the UE removed the second URSP.

Based on the scheme, the third response message includes fifth indication information for indicating the UE to remove the second URSP, so that the UE can remove the unavailable second URSP, the second URSP is prevented from influencing the storage performance of the UE, and the UE is prevented from using the unavailable second URSP to guide the routing of the UE, which results in the problem of reduced user experience.

The above is an explanation of the scheme of the present application from the perspective of equipment, and the following is an explanation of the scheme of the present application from the perspective of equipment interaction.

Fig. 7 is an interaction schematic diagram of a configuration method of a routing policy provided in the present application, and as shown in fig. 7, in a case where a UE initially accesses a visited network, the method includes:

s701, the UE sends a third message to the first AMF network element. Correspondingly, the first AMF network element receives a third message of the UE.

It should be noted that, for a specific description of S701, reference may be made to the related description of S501, and details of this application are not repeated herein.

S702, the first AMF network element sends a second message to the V-PCF network element. Correspondingly, the V-PCF network element receives the second message of the first AMF network element.

It should be noted that, for a specific description of S702, reference may be made to the related description of S301, and details of this application are not described herein again.

S703, the V-PCF network element sends a first message to the H-PCF network element. Correspondingly, the H-PCF network element receives the first message of the V-PCF network element.

It should be noted that, for a specific description of S703, reference may be made to the related description of S201, and details of this application are not described herein again.

S704, the H-PCF network element determines a first URSP.

It should be noted that, for a specific description of S704, reference may be made to the related description of S202, and details are not described herein again.

S705, the H-PCF network element sends a first response message to the V-PCF network element. Correspondingly, the V-PCF network element receives the first response message of the H-PCF network element.

It should be noted that, for the specific description of S705, reference may be made to the related description of S203, which is not described herein again.

And S706, the V-PCF network element sends a second response message to the first AMF network element. Correspondingly, the first AMF network element receives a second response message of the V-PCF network element.

It should be noted that, for the specific description of S706, reference may be made to the related description of S304, and details are not described herein again.

And S707, the first AMF network element sends a third response message to the UE. Correspondingly, the UE receives a third message of the first AMF network element.

It should be noted that, for a specific description of S707, reference may be made to the related description of S403, and details of this application are not repeated herein.

The UE may subsequently perform routing based on the first URSP after receiving the third response message.

Fig. 8 is an interaction schematic diagram of a further method for configuring a routing policy provided in the present application, where as shown in fig. 8, when a UE changes an AMF network element, the method includes:

s801, the UE sends a replacement request message to the second AMF network element. Correspondingly, the second AMF network element receives the replacement request message of the UE.

And the replacement request message is used for requesting to replace the accessed AMF network element.

It should be noted that the replacement request message may be a mobility registration update message, or the replacement request message may also be a handover procedure request message.

And S802, the second AMF network element sends a fourth message to the first AMF network element. Correspondingly, the first AMF network element receives the fourth message of the second AMF network element.

It should be noted that, for the specific description of S802, reference may be made to the related description of S601, which is not described herein again.

And S803, the first AMF network element sends a fourth response message to the second AMF network element. Correspondingly, the second AMF network element receives the fourth response message of the first AMF network element.

Wherein the fourth response message is used to indicate that the fourth message is received by the first AMF network element.

It should be noted that, the present application does not limit the specific form of the fourth response message.

S804, the first AMF network element determines that the second message includes the third indication information.

It should be noted that, for the specific description of S804, reference may be made to the related description of S602 above, and details are not described herein again.

If the first AMF network element determines that the second message does not include the third indication information, that is, the PLMN ID corresponding to the second AMF network element is the same as the PLMN ID corresponding to the first AMF network element, and the management area corresponding to the first AMF network element is in the TA list, the subsequent steps are not executed.

And S805, the first AMF network element sends a second message to the V-PCF network element. Correspondingly, the V-PCF network element receives the second message of the first AMF network element.

Wherein the second message includes third indication information.

It should be noted that, for a specific description of S805, reference may be made to the related description of S301, and details are not described herein again.

Fig. 8 is an example of an AMF network element in which the first AMF network element is a visited network. And if the first AMF network element is the AMF network element of the home network of the UE, the first AMF network element directly sends a second message to the H-PCF so that the H-PCF determines a first URSP.

S806, the V-PCF network element sends the first message to the H-PCF network element. Correspondingly, the H-PCF network element receives the first message of the V-PCF network element.

Wherein the first message includes first indication information.

It should be noted that, for the specific description of S806, reference may be made to the related description of S201, and details are not described herein again.

S807, the H-PCF network element determines the first URSP.

It should be noted that, for a specific description of S807, reference may be made to the related description of S202, which is not described herein again.

S808, the H-PCF network element sends a first response message to the V-PCF. Correspondingly, the V-PCF receives a first response message of the H-PCF network element.

Wherein the first response message includes the second indication information.

It should be noted that, for the specific description of S808, reference may be made to the related description of S203, which is not described herein again.

And if the first AMF network element is the AMF network element of the home network of the UE, the H-PCF network element directly sends a second message to the first AMF network element.

And S809, the V-PCF network element sends a second response message to the first AMF network element. Correspondingly, the first AMF network element receives a second response message of the V-PCF network element.

Wherein the second response message includes fourth indication information.

It should be noted that, for a specific description of S809, reference may be made to the related description of S304, and details of this application are not repeated herein.

And S810, the first AMF network element sends a third response message to the UE. Correspondingly, the UE receives the third message of the first AMF network element.

Wherein the third response message includes fifth indication information.

It should be noted that, for a specific description of S810, reference may be made to the related description of S403, and details are not described herein again.

After receiving the third response message, the UE removes the second URSP, and may perform routing based on the first URSP.

The scheme provided by the embodiment of the application is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative components 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, functional modules may be divided according to the above method examples, 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. Optionally, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and another division manner may be provided in actual implementation.

Fig. 9 is a schematic structural diagram of an H-PCF network element according to an embodiment of the present invention. The H-PCF network element 90 is configured to execute the above configuration method of the routing policy with the H-PCF network element 90 as an execution subject. As shown in fig. 9, the H-PCF network element 90 comprises an obtaining module 901, a sending module 902 and a processing module 903.

The acquiring module 901 is configured to acquire a first message of a visited policy control function V-PCF network element in a visited network of the UE; the first message comprises a location identifier of the visited network and first request information, wherein the first request information is used for requesting a routing strategy URSP of the UE in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; a processing module 903, configured to determine a first URSP according to the location identifier; a sending module 902, further configured to send a first response message to the V-PCF network element; the first response message includes the first URSP.

Optionally, the processing module 903 is specifically configured to: determining a first URSP according to the position identification and a preset corresponding relation; the preset corresponding relation comprises a corresponding relation between the position identifier and the first URSP.

Optionally, the first message further includes first indication information, where the first indication information is used to indicate that the UE includes an unavailable second URSP, and the first response message further includes second indication information, where the second indication information is used to indicate that the UE removes the second URSP.

Fig. 10 is a schematic structural diagram of a V-PCF network element according to an embodiment of the present invention. The V-PCF network element 100 is configured to execute the above-mentioned configuration method of the routing policy with the V-PCF network element 100 as an execution subject. As shown in fig. 10, the V-PCF network element 100 comprises an obtaining module 1001 and a sending module 1002.

The acquiring module 1001 is configured to acquire a second message of an AMF network element of a first access and mobility management function in a visited network of the UE; the first AMF network element is an AMF network element which is accessed by the UE currently, the second message comprises a position identifier of the visited network and second request information, the second request information is used for requesting the UE to select a routing strategy URSP in the first user equipment of the visited network, and the first URSP corresponds to the position identifier; a sending module 1002, configured to send a first message to a home policy control function H-PCF network element in a home network of the UE; the first message comprises a position identifier and first request information, and the first request information is used for requesting a first URSP; an obtaining module 1001, configured to obtain a first response message of an H-PCF network element; the first response message includes a first URSP; a sending module 1002, configured to send a second response message to the first AMF network element; the second response message includes the first URSP.

Optionally, the second message further includes third indication information, where the third indication information is used to indicate that the UE includes an unavailable second URSP, the first message further includes first indication information, where the first indication information is used to indicate that the UE includes a second URSP, the first response message further includes second indication information, where the second indication information is used to indicate that the UE removes the second URSP, and the second response message further includes fourth indication information, where the fourth indication information is used to indicate that the UE removes the second URSP.

Fig. 11 is a schematic structural diagram of a first AMF network element according to an embodiment of the present invention. The first AMF network element 110 is configured to execute the above configuration method of the routing policy with the first AMF network element 110 as an execution subject. As shown in fig. 11, the first AMF network element 110 includes an obtaining module 1101 and a sending module 1102.

The sending module 1102 is configured to send a second message to a visited policy control function V-PCF network element of the visited network; the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting the UE to select a routing strategy URSP in the first user equipment of the visited network, and the first URSP corresponds to the location identifier; an obtaining module 1101, configured to obtain a second response message of the V-PCF; the second response message includes the first URSP; a sending module 1102, further configured to send a third response message to the UE; the third response message includes the first URSP.

Optionally, the first AMF network element further includes: a processing module 1103; a processing module 1103, configured to obtain a third message of the UE; the third message is used for requesting the UE to register in the visiting network; the processing module 1103 is further configured to generate user information of the UE in response to the third message; the user information comprises a public land mobile network identity, PLMN ID, of the visited network and a current tracking area identity, TAI, of the UE.

Optionally, the UE is switched and accessed to the first AMF network element from the second AMF network element, and the first AMF network element further includes: a processing module 1103; a processing module 1103, configured to obtain a fourth message of the second AMF network element; the fourth message comprises a public land mobile network identifier (PLMN ID) corresponding to the second AMF network element and a Tracking Area (TA) list corresponding to the second AMF network element; a processing module 1103, configured to determine, according to the fourth message and a preset condition, that the second message further includes third indication information; the third indication information is used for indicating that the UE includes an unavailable second URSP, and the preset condition is that a PLMN ID corresponding to the second AMF network element is the same as a PLMN ID corresponding to the first AMF network element, and a management area corresponding to the first AMF network element is not in the TA list and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

Optionally, the second response message further includes fourth indication information, where the fourth indication information is used to indicate the UE to remove the second URSP, and the third response message further includes fifth indication information, where the fifth indication information is used to indicate the UE to remove the second URSP.

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

In the case of implementing the functions of the functional modules of the H-PCF network element in the form of hardware, fig. 12 shows a schematic structural diagram of another H-PCF network element. As shown in fig. 12, the H-PCF network element 120 comprises a processor 1201, a memory 1202, and a bus 1203. The processor 1201 and the memory 1202 may be connected by a bus 1203.

The processor 1201 is a control center of the H-PCF network element 120, and may be one processor or a collective name of a plurality of processing elements. For example, the processor 1201 may be a Central Processing Unit (CPU), other general-purpose processors, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, the processor 1201 may include one or more CPUs, such as CPU0 and CPU 1 shown in fig. 12.

The memory 1202 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 1202 may be separate from the processor 1201, and the memory 1202 may be connected to the processor 1201 via the bus 1203 for storing instructions or program code. When the processor 1201 calls and executes the instructions or program codes stored in the memory 1202, the configuration method of the routing policy provided by the embodiment of the present invention can be implemented.

In another possible implementation, the memory 1202 may also be integrated with the processor 1201.

The bus 1203 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 12, but this is not intended to represent only one bus or type of bus.

It is noted that the structure shown in fig. 12 does not constitute a limitation of the H-PCF network element 120. The H-PCF network element 120 may include more or fewer components than shown in fig. 12, or some components may be combined, or a different arrangement of components than shown.

As an example, in connection with fig. 9, the processing module 902 in the h-PCF network element 90 implements the same functionality as the processor 1201 in fig. 12.

Optionally, as shown in fig. 12, the H-PCF network element 120 provided in this embodiment of the present application may further include a communication interface 1204.

A communication interface 1204 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), etc. The communication interface 1204 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

In a possible implementation manner, in the H-PCF network element 120 provided in this embodiment of the present application, the communication interface 1204 may also be integrated in the processor 1201, which is not specifically limited in this embodiment of the present application.

As a possible product form, the H-PCF network element of the embodiment of the present application may be implemented by using the following: one or more Field Programmable Gate Arrays (FPGAs), programmable Logic Devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

In the case of implementing the functions of the functional modules of the V-PCF network element in the form of hardware, fig. 13 shows a schematic structural diagram of another V-PCF network element. As shown in fig. 13, the V-PCF network element 130 comprises a processor 1301, a memory 1302 and a bus 1303. The processor 1301 and the memory 1302 may be connected by a bus 1303.

The processor 1301 is a control center of the V-PCF network element 130, and may be one processor or a collective name of multiple processing elements. For example, the processor 1301 may be a CPU, or may be another general-purpose processor. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 1301 may include one or more CPUs, such as CPU0 and CPU 1 shown in fig. 13.

The memory 1302 may be, but is not limited to, a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM, a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 1302 may exist separately from the processor 1301, and the memory 1302 may be connected to the processor 1301 through a bus 1303 for storing instructions or program code. The processor 1301, when calling and executing the instructions or program codes stored in the memory 1302, can implement the configuration method of the routing policy provided by the embodiment of the present invention.

In another possible implementation, the memory 1302 may be integrated with the processor 1301.

The bus 1303 may be an ISA bus, a PCI bus, an EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 13, but this is not intended to represent only one bus or type of bus.

It is noted that the structure shown in fig. 13 does not constitute a definition of the V-PCF network element 130. In addition to the components shown in fig. 13, the V-PCF network element 130 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

Optionally, as shown in fig. 13, the V-PCF network element 130 provided in this embodiment of the present application may further include a communication interface 1304.

A communication interface 1304 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a WLAN, etc. The communication interface 1304 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

In a possible implementation manner, in the V-PCF network element 130 provided in this embodiment of the present application, the communication interface 1304 may also be integrated in the processor 1301, which is not specifically limited in this embodiment of the present application.

As a possible product form, the V-PCF network element of the embodiment of the present application may be implemented by using the following: one or more FPGAs, PLDs, controllers, state machines, gated logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

In the case that the functions of the functional modules of the first AMF network element are implemented in the form of hardware, fig. 14 shows a schematic structural diagram of another first AMF network element. As shown in fig. 14, the first AMF network element 140 includes a processor 1401, a memory 1402, and a bus 1403. The processor 1401 and the memory 1402 may be connected by a bus 1403.

Processor 1401 is the control center of the first AMF network element 140 and may be one processor or a collective term for a plurality of processing elements. For example, the processor 1401 may be one CPU, another general-purpose processor, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 1401 may include one or more CPUs, such as CPU0 and CPU 1 shown in FIG. 14.

Memory 1402 may be, but is not limited to, a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM, a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 1402 may exist separately from the processor 1401, and the memory 1402 may be connected to the processor 1401 via a bus 1403 for storing instructions or program code. The processor 1401, when calling and executing the instructions or program codes stored in the memory 1402, can implement the configuration method of the routing policy provided by the embodiment of the present invention.

In another possible implementation, the memory 1402 may also be integrated with the processor 1401.

Bus 1403, which can be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.

It is noted that the structure shown in fig. 14 does not constitute a limitation of the first AMF network element 140. In addition to the components shown in fig. 14, the first AMF network element 140 may comprise more or less components than those shown, or combine certain components, or a different arrangement of components.

As an example, in connection with fig. 11, the processing module 1102 in the first AMF network element 11 performs the same functions as the processor 1401 in fig. 14.

Optionally, as shown in fig. 14, the first AMF network element 140 according to this embodiment of the present application may further include a communication interface 1404.

A communication interface 1404 for connecting with other devices through a communication network. The communication network may be an ethernet, a radio access network, a WLAN, etc. Communication interface 1404 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

In a possible implementation manner, in the first AMF network element 140 provided in this embodiment of the present application, the communication interface 1404 may also be integrated in the processor 1401, which is not specifically limited in this embodiment of the present application.

As a possible product form, the first AMF network element in this embodiment may be implemented by using the following: one or more FPGAs, PLDs, controllers, state machines, gated logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

Through the above description of the embodiments, it is clear for a person skilled in the art that, for convenience and simplicity of description, only the division of the above functional units is illustrated. In practical applications, the above function allocation may be performed by different functional units according to needs, that is, the internal structure of the device is divided into different functional units to perform all or part of the above described functions. For the specific working processes of the above-described apparatuses and units, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions in the computer-readable storage medium are executed by a processor of an H-PCF network element, the H-PCF network element can execute a configuration method of a routing policy provided in a design manner that uses the H-PCF network element as an execution subject. Alternatively, the instructions in the computer-readable storage medium, when executed by a processor of the V-PCF network element, enable the V-PCF network element to perform the method of configuring the routing policy as provided by the design approach with the V-PCF network element as the execution principal. Alternatively, the instructions in the computer readable storage medium, when executed by the processor of the first AMF network element, enable the first AMF network element to perform the configuration method of the routing policy as provided by the design manner in which the first AMF network element is the executing subject.

Embodiments of the present invention provide a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the steps of the method flow illustrated in the above-described method embodiments.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), read-Only Memory (ROM), erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an application specific ASIC. In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the H-PCF network element, the V-PCF network element, the first AMF network element, the computer-readable storage medium, and the computer program product provided in this embodiment may be applied to the method provided in this embodiment, reference may also be made to the above method embodiment for obtaining technical effects, and details of the embodiment of the present invention are not described herein again.

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

1. A configuration method of routing strategy is applied to a home strategy control function H-PCF network element in a home network of User Equipment (UE), and the method comprises the following steps:

acquiring a first message of a visit policy control function V-PCF network element in a visit network of UE; the first message comprises a location identifier of the visited network and first request information, the first request information is used for requesting a first user equipment routing policy (URSP) of the UE in the visited network, and the first URSP corresponds to the location identifier;

determining the first URSP according to the position identifier;

sending a first response message to the V-PCF network element; the first response message includes the first URSP.

2. The method as claimed in claim 1, wherein said determining said first URSP based on said location identity comprises:

determining the first URSP according to the position identification and a preset corresponding relation; the preset corresponding relation comprises a corresponding relation between the position identifier and the first URSP.

3. The method according to claim 1 or 2, wherein the first message further comprises first indication information indicating that the UE includes a second URSP that is not available, and wherein the first response message further comprises second indication information indicating that the UE removes the second URSP.

4. A configuration method of routing strategy is applied to a visited strategy control function V-PCF network element in a visited network of User Equipment (UE), and the method comprises the following steps:

acquiring a second message of a first access and mobility management function (AMF) network element in a visited network of the UE; the first AMF network element is an AMF network element currently accessed by the UE, the second message includes a location identifier of the visited network and second request information, the second request information is used to request a routing policy, URSP, of the UE at a first user equipment of the visited network, and the first URSP corresponds to the location identifier;

sending a first message to a home policy control function (H-PCF) network element in a home network of the UE; the first message comprises the location identifier and first request information, and the first request information is used for requesting the first URSP;

acquiring a first response message of the H-PCF network element; the first response message comprises the first URSP;

sending a second response message to the first AMF network element; the second response message includes the first URSP.

5. The method of claim 4, wherein the second message further comprises third indication information indicating that the UE comprises a second URSP that is unavailable, wherein the first message further comprises first indication information indicating that the UE comprises the second URSP, wherein the first response message further comprises second indication information indicating that the UE removes the second URSP, wherein the second response message further comprises fourth indication information indicating that the UE removes the second URSP.

6. A configuration method of a routing strategy is applied to a first access and mobility management function (AMF) network element, wherein the first AMF network element is an AMF network element currently accessed by User Equipment (UE), and the method comprises the following steps:

sending a second message to a visit policy control function V-PCF network element of the visit network; the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting a first user equipment routing policy (URSP) of the UE in the visited network, and the first URSP corresponds to the location identifier;

acquiring a second response message of the V-PCF; the second response message comprises the first URSP;

sending a third response message to the UE; the third response message includes the first URSP.

7. The method of claim 6, further comprising:

acquiring a third message of the UE; the third message is used for requesting the UE to register in the visiting network;

generating user information of the UE in response to the third message; the user information includes a public land mobile network identity, PLMN, ID of the visited network and a current tracking area identity, TAI, of the UE.

8. The method of claim 6, wherein the UE has a change access to the first AMF network element from a second AMF network element, and wherein the method further comprises:

acquiring a fourth message of the second AMF network element; the fourth message includes a public land mobile network identifier PLMN ID corresponding to the second AMF network element and a tracking area TA list corresponding to the second AMF network element;

determining that the second message further comprises third indication information according to the fourth message and a preset condition; the third indication information is used to indicate that the UE includes an unavailable second URSP, and the preset condition is that a PLMN ID corresponding to the second AMF network element is the same as a PLMN ID corresponding to the first AMF network element, and a management area corresponding to the first AMF network element is not in the TA list and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

9. The method of claim 8, wherein the second response message further includes fourth indication information indicating that the UE removed the second URSP, and wherein the third response message further includes fifth indication information indicating that the UE removed the second URSP.

10. A home policy control function (H-PCF) network element is characterized in that the H-PCF network element is located in a home network of User Equipment (UE), and the H-PCF network element comprises: the device comprises an acquisition module, a sending module and a processing module;

the acquisition module is used for acquiring a first message of a visit policy control function V-PCF network element in a visit network of the UE; the first message comprises a location identifier of the visited network and first request information, the first request information is used for requesting a first user equipment routing policy (URSP) of the UE in the visited network, and the first URSP corresponds to the location identifier;

the processing module is configured to determine the first URSP according to the location identifier;

the sending module is further configured to send a first response message to the V-PCF network element; the first response message includes the first URSP.

11. The H-PCF network element of claim 10, wherein said processing module is specifically configured to:

12. The H-PCF network element of claim 10 or 11 wherein said first message further comprises a first indication information indicating that said UE comprises an unavailable second URSP, and wherein said first response message further comprises a second indication information indicating that said UE removed said second URSP.

13. A visit policy control function (V-PCF) network element is characterized in that the V-PCF network element is located in a visit network of User Equipment (UE), and the V-PCF network element comprises: a sending module and an obtaining module;

the obtaining module is used for obtaining a second message of a first access and mobility management function (AMF) network element in a visited network of the UE; the first AMF network element is an AMF network element currently accessed by the UE, the second message includes a location identifier of the visited network and second request information, the second request information is used to request a first user equipment routing policy URSP of the UE in the visited network, and the first URSP corresponds to the location identifier;

the sending module is used for sending a first message to a home policy control function H-PCF network element in a home network of the UE; the first message comprises the location identifier and first request information, and the first request information is used for requesting the first URSP;

the acquiring module is further configured to acquire a first response message of the H-PCF network element; the first response message includes the first URSP;

the sending module is further configured to send a second response message to the first AMF network element; the second response message includes the first URSP.

14. The V-PCF network element of claim 13, wherein said second message further comprises a third indication information indicating that said UE comprises an unavailable second URSP, wherein said first message further comprises a first indication information indicating that said UE comprises said second URSP, wherein said first response message further comprises a second indication information indicating that the UE removes said second URSP, wherein said second response message further comprises a fourth indication information indicating that the UE removes said second URSP.

15. A first access and mobility management function (AMF) network element is characterized in that the first AMF network element is an AMF network element currently accessed by User Equipment (UE), and the AMF network element comprises: the device comprises an acquisition module and a sending module;

the sending module is used for sending a second message to a visit policy control function V-PCF network element of a visit network; the second message comprises a location identifier of the visited network and second request information, the second request information is used for requesting a first user equipment routing policy (URSP) of the UE in the visited network, and the first URSP corresponds to the location identifier;

the acquisition module is used for acquiring a second response message of the V-PCF; the second response message includes the first URSP;

the sending module is further configured to send a third response message to the UE; the third response message includes the first URSP.

16. The first AMF network element of claim 15, wherein the AMF network element further comprises: a processing module;

the processing module is configured to obtain a third message of the UE; the third message is for requesting the UE to register in the visited network;

the processing module is further configured to generate user information of the UE in response to the third message; the user information includes a public land mobile network identity, PLMN, ID of the visited network and a current tracking area identity, TAI, of the UE.

17. The first AMF network element of claim 15, wherein the UE has changed access to the first AMF network element from a second AMF network element, and wherein the first AMF network element further comprises: a processing module;

the processing module is configured to obtain a fourth message of the second AMF network element; the fourth message includes a public land mobile network identifier PLMN ID corresponding to the second AMF network element and a tracking area TA list corresponding to the second AMF network element;

the processing module is configured to determine that the second message further includes third indication information according to the fourth message and a preset condition; the third indication information is used to indicate that the UE includes an unavailable second URSP, where the preset condition is that a PLMN ID corresponding to the second AMF network element is the same as a PLMN ID corresponding to the first AMF network element, and a management area corresponding to the first AMF network element is not in the TA list and the PLMN ID corresponding to the second AMF network element is different from the PLMN ID corresponding to the first AMF network element.

18. The first AMF network element of claim 17, wherein the second response message further comprises a fourth indication information indicating that the UE removed the second URSP, and wherein the third response message further comprises a fifth indication information indicating that the UE removed the second URSP.

19. A home policy control function, H-PCF, network element, comprising: a processor coupled with a memory, the memory for storing a program or instructions that, when executed by the processor, cause the H-PCF network element to perform the method of any of claims 1-3.

20. A computer-readable storage medium having stored thereon a computer program or instructions, which when executed cause a computer to perform the method of any one of claims 1 to 3.

21. A visited policy control function, V-PCF, network element, comprising: a processor coupled with a memory, the memory for storing a program or instructions that, when executed by the processor, cause the V-PCF network element to perform the method of any one of claims 4 to 5.

22. A computer-readable storage medium having stored thereon a computer program or instructions, which when executed cause a computer to perform the method of any of claims 4 to 5.

23. A first access and mobility management function, AMF, network element, wherein the first AMF network element comprises: a processor coupled with a memory, the memory for storing a program or instructions that, when executed by the processor, cause the first AMF network element to perform the method of any of claims 6 to 9.

24. A computer-readable storage medium having stored thereon a computer program or instructions, which when executed cause a computer to perform the method of any one of claims 6 to 9.