CN114143292B

CN114143292B - Policy updating method, policy updating device and readable storage medium

Info

Publication number: CN114143292B
Application number: CN202111458232.8A
Authority: CN
Inventors: 张雪贝; 杨文聪; 王立文; 黄蓉; 唐雄燕
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2023-12-22
Anticipated expiration: 2041-12-02
Also published as: CN114143292A

Abstract

The application provides a policy updating method, a policy updating device and a readable storage medium, relates to the technical field of communication, and can optimize a flow for updating a user equipment policy so as to ensure continuity of some services. The method comprises the following steps: the method comprises the steps that a terminal device receives updated User Equipment (UE) strategies from a mobile management network element and first parameters, wherein the first parameters are used for representing service types associated with the updated UE strategies and service types currently operated by the terminal device; and under the condition that the value of the first parameter is a first value, the terminal equipment updates the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy, wherein the first value is used for indicating that the service type associated with the updated UE strategy is a vehicle-to-vehicle universal V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type.

Description

Policy updating method, policy updating device and readable storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a policy updating method, a policy updating device, and a readable storage medium.

Background

In the current communication system, when a User Equipment (UE) policy (policy) corresponding to a terminal device is lost or invalid, the terminal device needs to immediately restart a registration procedure to update the UE policy. However, the terminal device will release all the originally established sessions when it re-initiates the registration procedure, resulting in session interruption for other established but not lost/failed UE policy. In a practical scenario, interruption of some service sessions may lead to serious consequences, such as interruption of protocol data unit (protocol dataunit, PDU) sessions of internet of vehicles (vehicle to everything, V2X) service, which may lead to traffic safety problems. Therefore, there is a need to optimize the flow of updating uepolics to ensure the continuity of some services.

Disclosure of Invention

The application provides a policy updating method, a policy updating device and a readable storage medium, which are used for optimizing the current flow of updating UEpolicy so as to ensure the continuity of some services.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in a first aspect, a policy updating method is provided, and a communication device performing the policy updating method may be a terminal device or a module, such as a chip, applied in the terminal device. The following describes an example in which an execution subject is a terminal device. The method comprises the following steps: the method comprises the steps that a terminal device receives updated User Equipment (UE) strategies from a mobile management network element and first parameters, wherein the first parameters are used for representing service types associated with the updated UE strategies and service types currently operated by the terminal device; and under the condition that the value of the first parameter is a first value, the terminal equipment updates the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy, wherein the first value is used for indicating that the service type associated with the updated UE strategy is a vehicle-to-vehicle universal V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type.

Because the first value of the first parameter is used for indicating that the service type associated with the updated UE policy is a V2X service type, and the service type currently operated by the terminal device is other service types than the V2X service type, the terminal device can determine that the terminal device does not currently have the V2X service type being operated under the condition that the first parameter is known as the first value, and can immediately execute the policy update flow, thereby updating the locally stored V2X policy, and the situation that the terminal device forcedly interrupts the session of the V2X service due to executing the policy update flow when operating the V2X service does not occur. Therefore, the policy updating method provided by the application can ensure the continuity of the V2X service.

With reference to the first aspect, in certain embodiments of the first aspect, the method further comprises: the terminal equipment receives first time length information from a mobile management network element; and under the condition that the value of the first parameter is a second value, the terminal equipment starts the first timer according to the first time length information, monitors the session corresponding to the V2X service during the operation period of the first timer, and after the session corresponding to the V2X service is released, the terminal equipment updates the locally stored UE strategy corresponding to the service type related to the updated UE strategy into the updated UE strategy, wherein the second value is used for indicating that the service type related to the updated UE strategy is other service types except the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type.

Because the second value of the first parameter is used for indicating that the service type associated with the updated UE policy is a service type other than the V2X service type, and the service type currently operated by the terminal device is the V2X service type, the terminal device can determine that the terminal device is currently operating the V2X service and needs to delay policy updating when knowing that the first parameter is the second value. Furthermore, the terminal equipment can monitor the session corresponding to the V2X service during the starting period of the first timer, and update the UE strategy to be updated after the session is naturally released, so that the situation that the terminal equipment forcedly interrupts the session of the V2X service because the strategy updating flow is executed when the terminal equipment operates the V2X service can not occur. Therefore, the policy updating method provided by the application can ensure the continuity of the V2X service.

With reference to the first aspect, in certain embodiments of the first aspect, the method further comprises: and under the condition that the value of the first parameter is the second value, the terminal equipment sends indication information to the mobile management network element, wherein the indication information is used for indicating that the terminal equipment has received the updated UE strategy, and after the session release corresponding to the V2X service is monitored in the operation period of the first timer, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated into the updated UE strategy.

Based on the scheme, the terminal equipment can inform the network side that the updated UE strategy is received, and the terminal equipment is about to carry out delay updating.

In a second aspect, a policy updating method is provided, and a communication device performing the method may be a policy control network element or a module, such as a chip, applied in the policy control network element. The following describes an example in which an execution body is a policy control network element. The method comprises the following steps: the method comprises the steps that a policy control network element determines a service type associated with a User Equipment (UE) policy to be updated and a service type currently operated by terminal equipment; and under the condition that the service type related to the UE strategy to be updated is the vehicle-to-vehicle universal V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type, the strategy control network element sends the updated UE strategy and a first parameter to the mobile management network element, wherein the value of the first parameter is a first numerical value, the first numerical value is used for indicating that the service type related to the updated UE strategy is the V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type.

With reference to the second aspect, in certain embodiments of the second aspect, the method further comprises: and under the condition that the service type related to the UE strategy to be updated is other service types except the V2X service type and the service type currently operated by the terminal equipment is the V2X service type, the strategy control network element sends the updated UE strategy and a first parameter to the mobile management network element, wherein the value of the first parameter is a second numerical value, the second numerical value is used for indicating that the service type related to the updated UE strategy is other service types except the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type.

Based on the scheme, the policy control network element can instruct the service type related to the UE policy updated by the terminal equipment to be other service types except the V2X service type and the service type currently operated by the terminal equipment to be the V2X service type through the second value of the first parameter, so that the terminal equipment can select to execute the corresponding policy updating flow.

With reference to the second aspect, in certain embodiments of the second aspect, the method further comprises: when the service type related to the UE strategy to be updated is other service types except the V2X service type and the service type currently operated by the terminal equipment is the V2X service type, the strategy control network element receives the indication information from the mobile management network element; the indication information is used for indicating that the terminal equipment has received the updated UE strategy, and updating the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy after the session release corresponding to the V2X service is monitored during the operation of the first timer; the duration of the first timer is determined according to first duration information, and the first duration information is determined by the mobile management network element according to a first parameter.

In a third aspect, a policy updating method is provided, and a communication device performing the policy updating method may be a mobility management network element or a module, such as a chip, applied in the mobility management network element. The following description will take the execution body as an example of a mobility management network element. The method comprises the following steps: the mobile management network element receives updated User Equipment (UE) strategies and first parameters from the strategy control network element; the first parameter is used for representing the service type associated with the updated UE strategy and the service type currently operated by the terminal equipment; under the condition that the value of the first parameter is a second numerical value, the mobile management network element determines first time length information according to the first parameter; the second value is used for indicating that the service type associated with the updated UE strategy is other service types except the vehicle-to-vehicle V2X service type, and the service type currently operated by the terminal equipment is the V2X service type; the first time length information is used for determining the time length of a first timer, the first timer is used for monitoring a session corresponding to the V2X service by the terminal equipment, and after the session corresponding to the V2X service is released, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated into the updated UE strategy; and the mobile management network element sends the updated UE strategy, the first parameter and the first time length information to the terminal equipment.

With reference to the third aspect, in certain embodiments of the third aspect, the method further comprises: under the condition that the value of the first parameter is a first numerical value, the mobile management network element sends the updated UE strategy and the first parameter to the terminal equipment; the first value is used for indicating that the service type associated with the updated UE strategy is a V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type.

With reference to the third aspect, in certain embodiments of the third aspect, the method further comprises: when the value of the first parameter is the second value, the mobile management network element receives indication information from the terminal equipment, wherein the indication information is used for indicating that the terminal equipment has received the updated UE strategy, and after session release corresponding to the V2X service is monitored during the operation of the first timer, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated into the updated UE strategy; the mobility management network element sends an indication message to the policy control network element.

In a fourth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, where the modules, units or means may be implemented by hardware, software, or implemented by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

With reference to the fourth aspect, in certain embodiments of the fourth aspect, the communication device includes: a transceiver module and a processing module; the receiving and transmitting module is used for receiving updated User Equipment (UE) strategies from the mobile management network element and first parameters, wherein the first parameters are used for representing service types associated with the updated UE strategies and service types currently operated by the communication device; the processing module is configured to update a locally stored UE policy corresponding to a service type associated with the updated UE policy to an updated UE policy when the value of the first parameter is a first value, where the first value is used to indicate that the service type associated with the updated UE policy is a vehicle-to-vehicle universal V2X service type, and a service type currently operated by the communication device is another service type other than the V2X service type.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver module is further configured to receive first time length information from a mobility management network element; the processing module is further configured to, when the value of the first parameter is a second value, start the first timer according to the first time length information, monitor a session corresponding to the V2X service during operation of the first timer, and update the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy after the session corresponding to the V2X service is released, where the second value is used to indicate that the service type associated with the updated UE policy is another service type other than the V2X service type, and the service type currently operated by the communication device is the V2X service type.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver module is further configured to send, to the mobility management element, indication information, where the value of the first parameter is the second value, where the indication information is used to indicate that the communication device has received the updated UE policy, and after a session release corresponding to the V2X service is monitored during operation of the first timer, update the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy.

In a fifth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, where the modules, units or means may be implemented by hardware, software, or implemented by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

With reference to the fifth aspect, in certain embodiments of the fifth aspect, the communication device includes: a transceiver module and a processing module; the processing module is used for determining the service type associated with the UE policy of the user equipment to be updated and the service type currently operated by the terminal equipment; the receiving and transmitting module is used for transmitting the updated UE strategy and a first parameter to the mobile management network element under the condition that the service type related to the UE strategy to be updated is the vehicle-to-vehicle universal V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type, wherein the value of the first parameter is a first numerical value, the first numerical value is used for indicating that the service type related to the updated UE strategy is the V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type.

With reference to the fifth aspect, in some implementations of the fifth aspect, the transceiver module is further configured to send, to the mobility management network element, the updated UE policy and the first parameter, where the value of the first parameter is a second value, and the second value is used to indicate that the service type associated with the updated UE policy is another service type other than the V2X service type, and the service type currently operated by the terminal device is the V2X service type when the service type associated with the UE policy to be updated is another service type other than the V2X service type and the service type currently operated by the terminal device is the V2X service type.

With reference to the fifth aspect, in some implementations of the fifth aspect, the transceiver module is further configured to receive indication information from the mobility management network element when a service type associated with the UE policy to be updated is a service type other than the V2X service type, and a service type currently operated by the terminal device is the V2X service type; the indication information is used for indicating that the terminal equipment has received the updated UE strategy, and updating the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy after the session release corresponding to the V2X service is monitored during the operation of the first timer; the duration of the first timer is determined according to first duration information, and the first duration information is determined by the mobile management network element according to a first parameter.

In a sixth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, where the modules, units or means may be implemented by hardware, software, or implemented by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

With reference to the sixth aspect, in certain embodiments of the sixth aspect, the communication device includes: a transceiver module and a processing module; the receiving and transmitting module is used for receiving updated User Equipment (UE) strategies and first parameters from the strategy control network element; the first parameter is used for representing the service type associated with the updated UE strategy and the service type currently operated by the terminal equipment; the processing module is used for determining first time length information according to the first parameter under the condition that the value of the first parameter is a second numerical value; the second value is used for indicating that the service type associated with the updated UE strategy is other service types except the vehicle-to-vehicle V2X service type, and the service type currently operated by the terminal equipment is the V2X service type; the first time length information is used for determining the time length of a first timer, the first timer is used for monitoring a session corresponding to the V2X service by the terminal equipment, and after the session corresponding to the V2X service is released, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated into the updated UE strategy; and the transceiver module is also used for transmitting the updated UE strategy, the first parameter and the first time length information to the terminal equipment.

With reference to the sixth aspect, in some implementations of the sixth aspect, the transceiver module is further configured to send the updated UE policy and the first parameter to the terminal device when the value of the first parameter is the first numerical value; the first value is used for indicating that the service type associated with the updated UE strategy is a V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type.

With reference to the sixth aspect, in some implementations of the sixth aspect, the transceiver module is further configured to receive, when the value of the first parameter is the second value, indication information from the terminal device, where the indication information is used to indicate that the terminal device has received the updated UE policy, and after a session release corresponding to the V2X service is monitored during operation of the first timer, update the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy; and sending the indication message to the strategy control network element.

In a seventh aspect, there is provided a communication apparatus comprising: at least one processor; the processor is configured to execute a computer program or instructions to cause the communication device to perform the policy updating method of the first aspect described above.

With reference to the seventh aspect, in certain embodiments of the seventh aspect, the communication device further includes a memory, where the memory is configured to hold necessary program instructions and data. The memory may be coupled to the processor or may be separate from the processor.

In some possible designs, the communication device may be a chip or a system-on-chip. When the device is a chip system, the device can be formed by a chip, and can also comprise the chip and other discrete devices.

An eighth aspect provides a communication apparatus comprising: at least one processor; the processor is configured to execute a computer program or instructions to cause the communication device to perform the policy updating method of the second aspect described above.

With reference to the eighth aspect, in certain embodiments of the eighth aspect, the communication device further includes a memory, where the memory is configured to hold necessary program instructions and data. The memory may be coupled to the processor or may be separate from the processor.

In a ninth aspect, there is provided a communication apparatus comprising: at least one processor; the processor is configured to execute a computer program or instructions to cause the communication device to perform the policy updating method of the third aspect described above.

With reference to the ninth aspect, in certain embodiments of the ninth aspect, the communication device further includes a memory, where the memory is configured to hold necessary program instructions and data. The memory may be coupled to the processor or may be separate from the processor.

In a tenth aspect, there is provided a computer readable storage medium having stored therein computer instructions which, when executed by a computer, cause the computer to perform the method of the first aspect described above.

In an eleventh aspect, there is provided a computer readable storage medium having stored therein computer instructions which, when executed by a computer, cause the computer to perform the method of the second aspect described above.

In a twelfth aspect, there is provided a computer-readable storage medium having stored therein computer instructions which, when executed by a computer, cause the computer to perform the method of the above third aspect.

In a thirteenth aspect, there is provided a computer program product containing instructions which, when run on a computer, enable the computer to perform the method of the first aspect described above.

In a fourteenth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the second aspect described above.

In a fifteenth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the third aspect described above.

The technical effects of any one of the fourth to fifteenth aspects may be referred to the technical effects of the different designs of the first to third aspects, and are not described herein.

Drawings

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

fig. 1b is a schematic diagram of a network architecture according to an embodiment of the present application;

FIG. 2 is an interaction schematic diagram of a policy updating method according to an embodiment of the present application;

FIG. 3 is an interaction schematic diagram of another policy updating method according to an embodiment of the present application;

FIG. 4 is an exemplary interaction diagram of a policy update method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

For the convenience of understanding the technical solutions of the embodiments of the present application, a brief description of related technologies or terms of the present application is given below.

1、UE policy：

Currently, UE policy is divided into three categories: access network selection and discovery policies (accessnetwork discovery and selection policy, ands), user routing policies (user equipment routing selection policy, urs p) and V2X policies.

The V2X strategy has higher correlation with the strategy updating method provided by the embodiment of the application. The V2X policy is policy information used by the terminal device in the V2X service, and mainly includes a public land mobile network (public landmobile network, PLMN) list, supported radio access technology (radio access technology, RAT), quality of service (QoS) parameter information on a PC5 interface (may be simply referred to as PC5QoS parameter information) that authorizes the terminal device to use the V2X service, and so on.

2、V2X：

V2X technology is a communication technology of an on-board unit and other devices, mainly including vehicles and vehicles (vehicle to vehicle, V2V), vehicles and infrastructure (vechile to infrainstructure, V2I), vehicles and people (vehicle to people, V2P), vehicles and clouds (vehicle to network, V2N). The method can be specifically interpreted as a technology that the vehicle communicates with other surrounding vehicles, people and objects through a sensor and a network communication technology, and analysis and decision are carried out according to the collected information.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Wherein, in the description of the present application, "/" means that the related objects are in a "or" relationship, unless otherwise specified, for example, a/B may mean a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

In the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). 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 plural.

In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

It is 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, various embodiments are not necessarily referring to the same embodiments 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 various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It is to be understood that in this application, the terms "when …," "if," and "if" are used to indicate that the corresponding process is to be performed under some objective condition, and are not intended to limit the time, nor do they require that the acts be performed with a judgment, nor are they intended to imply that other limitations are present.

The term "simultaneously" in the present application is understood to mean at the same point in time, also during a period of time, and also during the same period.

It can be appreciated that some optional features of the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatus provided in the embodiments of the present application may also implement these features or functions accordingly, which is not described herein.

Throughout this application, unless specifically stated otherwise, identical or similar parts between the various embodiments may be referred to each other. In the various embodiments and the various implementation/implementation methods in the various embodiments in this application, if no special description and logic conflict exist, terms and/or descriptions between different embodiments and between the various implementation/implementation methods in the various embodiments may be consistent and may be mutually referred to, technical features in the different embodiments and the various implementation/implementation methods in the various embodiments may be combined to form new embodiments, implementations, implementation methods, or implementation methods according to their inherent logic relationships. The following embodiments of the present application are not to be construed as limiting the scope of the present application.

The technical solutions of the embodiments of the present application may be used in various communication systems, which may be a third generation partnership project (third generation partnership project,3 GPP) communication system, for example, a long term evolution (long term evolution, LTE) system, a fifth generation mobile communication technology (5th generation mobile communication technology,5G) system, a New Radio (NR) system, a V2X system, a system of LTE and 5G hybrid networking, or a device-to-device (D2D) communication system, a machine-to-machine (machine to machine, M2M) communication system, an internet of things (internet ofthings, ioT), and other next generation communication systems, which may also be a non-3 GPP communication system, without limitation.

The above communication system and communication scenario to which the present application is applied are merely examples, and the communication system and communication scenario to which the present application is applied are not limited thereto, and are collectively described herein, and are not described in detail.

As shown in fig. 1a, a schematic architecture diagram of a communication system 10 to which a policy update method according to an embodiment of the present application is applied is shown. The communication system 10 comprises a policy control network element 101 and a mobility management network element 102.

The policy control network element 101 is configured to determine a service type associated with a UE policy to be updated and a service type currently operated by the terminal device; and sending the updated UE policy and a first parameter to the mobility management network element 102 under the condition that the service type associated with the UE policy to be updated is a V2X service type and the service type currently operated by the terminal equipment is other service types than the V2X service type, wherein the value of the first parameter is a first numerical value, and the first numerical value is used for indicating that the service type associated with the updated UE policy is the V2X service type and the service type currently operated by the terminal equipment is other service types than the V2X service type. A mobility management network element 102, configured to receive the updated UE policy and the first parameter from the policy control network element 101; and sending the updated UE policy and the first parameter to the terminal equipment.

Or, the policy control network element 101 is configured to determine a service type associated with a UE policy to be updated and a service type currently operated by the terminal device; and sending the updated UE policy and the first parameter to the mobility management network element 102 under the condition that the service type associated with the UE policy to be updated is other service types than the V2X service type and the service type currently operated by the terminal equipment is the V2X service type, wherein the value of the first parameter is a second numerical value, and the second numerical value is used for indicating that the service type associated with the updated UE policy is other service types than the V2X service type and the service type currently operated by the terminal equipment is the V2X service type. The mobility management network element 102 is configured to receive the updated UE policy and the first parameter from the policy control network element 101, determine the first time length information according to the first parameter, and then send the updated UE policy, the first parameter and the first time length information to the terminal device. The first time length information is used for determining the time length of a first timer, the first timer is used for monitoring a session corresponding to the V2X service by the terminal equipment, and after the session corresponding to the V2X service is released, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated to the updated UE strategy.

The specific implementation and technical effects of the above solution will be described in detail in the following method embodiments, which are not described herein.

Optionally, as shown in fig. 1a, the communication system may further comprise a terminal device 103. The terminal device 103 may communicate with the mobility management network element 102.

The terminal device 103 is configured to receive an updated UE policy and a first parameter from the mobility management network element 102, where the first parameter is used to characterize a service type associated with the updated UE policy and a service type currently operated by the terminal device. The terminal device 103 is further configured to update a locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy if the value of the first parameter is the first value.

Optionally, the terminal device 103 is further configured to receive first time length information from the mobility management network element 102; and under the condition that the value of the first parameter is a second value, starting a first timer according to the first time length information, monitoring a session corresponding to the V2X service during the operation of the first timer, and updating the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy after the session corresponding to the V2X service is released.

It should be noted that fig. 1a is only an exemplary schematic diagram of a communication system 10 to which the policy updating method provided in the embodiments of the present application is applied, and the communication system 10 may further include some network elements or entities not illustrated in fig. 1a, which are not specifically limited in the embodiments of the present application.

Exemplary respective functions of the various parts or network elements involved in the above-described communication system 10 in a 5G network are described below.

(1) Terminal devices (terminals) may include various handheld devices, vehicle mount devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities; and may also include a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a personal digital assistant (personal digital assistant, PDA) computer, a tablet computer, a wireless modem (modem), a hand-held device (handheld), a laptop computer (laptop), a cordless phone (cord) or a wireless local loop (wireless local loop, WLL) station, a machine type communication (machine type communication, MTC) terminal, a User Equipment (UE), a Mobile Station (MS), a terminal device (terminal device), a relay user equipment, or the like. The relay user equipment may be, for example, a 5G home gateway (residential gateway, RG). For convenience of description, the above-mentioned devices are collectively referred to as terminal devices in this application.

It should be understood that the terminal device in the embodiment of the present application may be a terminal device in various vertical industry application fields such as an internet of things terminal device, a port, an intelligent factory, railway traffic, logistics, an unmanned aerial vehicle, an unmanned automobile, and the like. For example: mobile robot (mobile robot), automated guided vehicle (automated guided vehicle, AGV), unmanned car, on-train control devices and sensors, factory deployed control devices and sensors, etc.

As an example, in the embodiment of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring. The terminal may also be a sensor device applied to a factory.

(2) A mobility management element, belonging to a core network element, mainly responsible for signaling processing parts, such as: access control, mobility management, attach and detach, gateway selection, etc. In the case where the mobility management element provides services for a session of the terminal, a storage resource of the control plane is provided for the session to store a session identifier, a session management function (session management function, SMF) element identifier associated with the session identifier, etc. In a 5G communication system, the mobility management element may be an access and mobility management function (access and mobility management function, AMF) element. In future communication systems, the mobility management element may still be an AMF element, or may have other names, which are not limited in this application.

(3) A policy control network element, including a user subscription data management function, a policy control function, a charging policy control function, a quality of service (quality ofservice, qoS) control, and the like, a unified policy framework for guiding network behavior, providing policy rule information for a control plane function network element (e.g., an AMF network element, and the like), and the like. In a 5G communication system, the policy control network element may be a policy control function (policy control function, PCF) network element. In future communication systems, the policy control function element may still be a PCF element, or have other names, which embodiments of the present application do not limit.

Taking a 5G communication system as an example, as shown in fig. 1b, a possible network architecture corresponding to the communication system 10 shown in fig. 1a is shown as an example, where the embodiment of the present application is applicable. The network element or entity corresponding to the mobility management network element 102 may be an AMF network element in the 5G communication system. The network element or entity corresponding to the policy control network element 101 may be a PCF network element in the 5G communication system. The terminal equipment can access to a 5G network through radio access network (radio access network, RAN) equipment, and the terminal equipment communicates with an AMF network element through an N1 interface (N1 for short); the RAN equipment communicates with an AMF network element through an N2 interface (N2 for short); the AMF network element communicates with the PCF network element through an N15 interface (N15 for short); the related functional descriptions and interface descriptions may refer to the 5G system architecture (5G system architecture) in the 23501 standard, and are not described herein.

In the following, the function of the RAN device in the 5G network in the network architecture to which the embodiment of the present application is applied as shown in fig. 1b is exemplarily described.

The RAN device is configured to provide a network access function for an authorized terminal in a specific area, and enable use of transmission tunnels with different qualities according to a level of the terminal device, a service requirement, and the like. The RAN device can manage radio resources, provide access services for the terminal device, and further complete forwarding of control signals and terminal data between the terminal and the core network, and may also be understood as a base station in a conventional network. For example, the functions of radio resource management, qoS management, data compression, encryption, and the like on the air interface side can be responsible.

The RAN device may be a device in a wireless network. The RAN device may also be referred to as a wireless RAN device or a network device. Currently, some examples of RAN equipment are: a next generation Node B (the next generation Node B, gNB) in a 5G system, a transmission reception point (transmission reception point, TRP), an evolved Node B (eNB) in an LTE system, a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolvedNodeB, or home B, HNB), a Base Band Unit (BBU), or a wireless fidelity (wireless fidelity, wifi) Access Point (AP), etc. In one network architecture, the network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node. The RAN device may also be a wireless backhaul device, a vehicle-mounted device, a wearable device, a network device in a future 5G network or a network device in a future evolved PLMN network, etc. In the third generation (3rd generation,3G) system, it is called a Node B (Node B) or the like.

The policy updating method provided in the embodiment of the present application will be described in detail with reference to fig. 1a and fig. 1 b.

It should be noted that, names of various information, parameters, messages or devices appearing in the embodiments of the present application are only one example name, and may be replaced by other names in practical applications, which are not particularly limited in the embodiments of the present application.

As shown in fig. 2, an interaction schematic diagram of a policy updating method provided in an embodiment of the present application is shown, where the policy updating method includes the following steps:

s201, the strategy control network element determines the service type associated with the UE strategy to be updated and the service type currently operated by the terminal equipment.

S202, under the condition that the service type related to the UE strategy to be updated is a V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type, the strategy control network element sends the updated UE strategy and a first parameter to the mobile management network element, wherein the value of the first parameter is a first numerical value, the first numerical value is used for indicating that the service type related to the updated UE strategy is the V2X service type and the service type currently operated by the terminal equipment is other service types except the V2X service type. Correspondingly, the mobility management network element receives the updated UE policy and the first parameter from the policy control network element.

And S203, the mobile management network element sends the updated UE strategy and the first parameter to the terminal equipment. Correspondingly, the terminal equipment receives the updated UE policy and the first parameter from the mobility management element.

S204, the terminal equipment updates the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy.

For S201, the policy control network element may detect a service state of the terminal device to determine a service type corresponding to a service currently operated by the terminal device. And, the policy control network element may determine which UE policies need to be updated among the UE policies configured by the terminal device. In the embodiment of the present application, the UE policy that needs to be updated may be referred to as a UE policy to be updated.

Further, the policy control network element may determine (the content of) the UE policy for updating the UE policy to be updated according to the UE policy to be updated. Correspondingly, after receiving the UE policy for updating from the policy control network element, the terminal device may update the UE policy to be updated to obtain an updated UE policy. Therefore, in the embodiment of the present application, the UE policy determined by the policy control network element and used for updating the UE policy to be updated may be referred to as an updated UE policy.

In the embodiment of the present application, the policy control network element may determine the value of the first parameter according to the service type associated with the UE policy to be updated and the service type currently operated by the terminal device. The first parameter is used for representing the service type associated with the updated UE strategy and the service type currently operated by the terminal equipment.

In this embodiment of the present application, the first parameter may also be understood as a flag or a flag bit. For example, the first parameter may be referred to as a V2X flag bit.

For S202, in the case that the policy control network element determines that the service type currently operated by the terminal device is other service types than the V2X service type, in other words, the terminal device does not currently have the V2X service being operated, and the service type associated with the UE policy to be updated is the V2X service type, that is, the terminal device has the UE policy (V2X policy) related to the V2X service to be updated, the policy control network element determines that the terminal device can immediately execute the policy update procedure, and the V2X service is not interrupted.

In order for the terminal device to immediately perform policy updating, the policy control network element configures the value of the first parameter to be a first value. The first value is used for indicating that the service type associated with the updated UE policy is a V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type, so that the terminal equipment can determine that policy updating can be immediately performed according to the first value of the first parameter. Illustratively, the first value may be 1.

It should be noted that, according to the policy updating method provided by the embodiment of the present application, the V2X service type may be replaced by another service type according to different application scenarios, which may also solve the corresponding technical problem.

In the embodiment of the present application, after determining the value of the first parameter and the updated UE policy, the policy control network element sends the first parameter and the updated UE policy to the mobility management network element.

Optionally, the policy control network element may send the first parameter and the updated UE policy to the mobility management network element in a message. The first parameter and the updated UE policy may be carried in the same message or different messages, which is not limited in the embodiment of the present application.

For example, in the embodiment of the present application, the message for carrying the first parameter and/or the updated UE policy may be a policy update message (npcf_ UE Policy Control Update Notify Request).

Optionally, in the embodiment of the present application, the policy control network element may further send a trigger (Triggers) to the mobility management network element, where the trigger may also be referred to as an event identifier, and is used to indicate that a policy change (update) procedure has been triggered. In a possible implementation, the trigger may be carried in a message for carrying the first parameter and/or the updated UE policy.

Optionally, in the embodiment of the present application, the policy control network element may further send a configuration update indicator to the mobility management network element, where the configuration update indicator is used to indicate whether the terminal device needs to perform a registration procedure after updating the UE policy. For example, the value of the configuration update indicator is 1, which indicates that the terminal device needs to perform the registration process after updating the UE policy, and the value of the configuration update indicator is 0, which indicates that the terminal device does not need to perform the registration process after updating the UE policy. In a possible implementation, the configuration update indicator may be carried in a message for carrying the first parameter and/or the updated UE policy.

It should be noted that, in the embodiment of the present application, the terminal device needs to perform the registration process after updating the policy, in other words, the configuration update indicator is configured by default to indicate that the terminal device needs to perform the value of the registration process after updating the UE policy.

For S203, after receiving the first parameter and the updated UE policy from the policy control network element, if the mobility management network element determines that the value of the first parameter is the first value, the mobility management network element sends the first parameter and the updated UE policy to the terminal device.

Alternatively, the mobility management element may directly forward the message carrying the first parameter and/or the updated UE policy to the terminal device.

For S204, after receiving the updated UE policy and the first parameter, the terminal device detects the first parameter, if it is determined that the value of the first parameter is the first value, the terminal device immediately executes a policy update procedure, releases the ongoing service session, updates the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy, or, updates the locally stored UE policy to be updated to the updated UE policy, and initiates a re-registration procedure.

In S204, since the terminal device has updated the previous UE policy to be updated, the session associated with the original UE policy to be updated is no longer authorized to perform the service, so the terminal device needs to release the session associated with the UE policy to be updated for re-establishment, which can refer to the definition of the existing standard specifically and will not be described herein.

Optionally, in the embodiment of the present application, after receiving the updated UE policy, the terminal device may send an indication message to the mobility management network element, where the indication message is used to indicate that the terminal device has received the updated UE policy, so that the network side knows that the terminal device has received the updated UE policy, and may execute a policy update procedure. Further, the mobility management network element may send the received indication message to the policy control network element, so that the policy control network element knows that the terminal device has received the updated UE policy.

As shown in fig. 3, an interaction diagram of a policy updating method according to an embodiment of the present application is provided, where the policy updating method may be applied to the network architecture shown in fig. 1. Specifically, the policy updating method comprises the following steps:

s301, a policy control network element determines a service type associated with a UE policy to be updated and a service type currently operated by a terminal device.

S302, when the service type associated with the UE strategy to be updated is other service types except the V2X service type and the service type currently operated by the terminal equipment is the V2X service type, the strategy control network element sends the updated UE strategy and a first parameter to the mobile management network element, wherein the value of the first parameter is a second value, the second value is used for indicating that the service type associated with the updated UE strategy is other service types except the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type. Correspondingly, the mobility management network element receives the updated UE policy and the first parameter from the policy control network element.

S303, the mobile management network element determines first time length information according to the first parameter, and sends the updated UE strategy, the first parameter and the first time length information to the terminal equipment. The first time length information is used for determining the time length of the first timer. Correspondingly, the terminal equipment receives updated UE policies, the first parameters and the first time length information from the mobility management network element.

S304, the terminal equipment starts a first timer according to the first time length information, monitors a session corresponding to the V2X service during the operation period of the first timer, and updates the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy after the session corresponding to the V2X service is released.

For S301, reference may be made to the description of S201 above for specific implementation of this step, which is not repeated here.

For S302, in the embodiment of the present application, when the policy control network element determines that the service type currently operated by the terminal device is a V2X service type, in other words, the terminal device is currently operating a V2X service, and the service type associated with the UE policy to be updated is a service type other than the V2X service type, that is, if the terminal device has a UE policy that is unrelated to the V2X service and needs to be updated, in order not to interrupt the V2X service that is being performed by the terminal device, the policy control network element determines that the terminal device needs to delay performing policy update.

In order to delay the policy update by the terminal device, the policy control network element configures the value of the first parameter to a second value. The second value is used for indicating that the service type associated with the updated UE policy is a service type other than the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type, so that the terminal equipment can determine delay to update the policy according to the second value of the first parameter. Illustratively, the second value may be 0.

In S302 of the embodiment of the present application, reference may be made to the description of S202 above for how the policy control network element sends the second value, which is not described herein.

For S303, in the embodiment of the present application, after receiving the first parameter, if it is determined that the value of the first parameter is the second value, it may be determined that the terminal device needs to delay to perform policy update, and the mobility management network element configures the first time length information for the terminal device.

In this embodiment of the present application, the first time length information may also be referred to as delay registration information, where the value of the first time length information may be zero or non-zero, and is used by the terminal device to determine the time length of the first timer. How the terminal device determines the first timer according to the first time length information is described in the following.

Optionally, in the embodiment of the present application, the value of the first time length information may be configured by an operator in a mobility management network element according to a service requirement. For example, V2X services of different automobile enterprises can configure different values of the first time information according to customer requirements.

Optionally, in the case that the policy update network element further sends the configuration update indicator to the mobility management network element, the mobility management network element may further detect the configuration update indicator after determining that the first parameter is the second value. If the configuration update indicator indicates that the terminal equipment needs to perform a registration process after updating the UE policy, the mobile management network element determines the first time length information, otherwise, the mobile management network element is uncertain. For example, the policy update network element sends the first parameter and the configuration update indicator to the mobility management network element in a policy update message, and assuming that 0 is a second value of the first parameter, and that the value of the configuration update indicator is 1 represents that the registration procedure of the terminal equipment after updating the UE policy is required, the mobility management network element detects the configuration update indicator after determining that the value of the first parameter is 0 after receiving the configuration update indicator, determines that the value of the configuration update indicator is 1, and the mobility management network element determines the first time length information.

In the embodiment of the present application, after determining the first time length information, the mobility management network element sends the updated UE policy, the first parameter and the first time length information to the terminal device.

In one possible implementation, the mobility management element may send the updated UE policy, the first parameter and the first time length information to the terminal device in the same message. In this embodiment of the present application, the message for carrying the updated UE policy, the first parameter and the first time length information may be referred to as a UE configuration update command message.

Optionally, the UE configuration update command message may include a message received by the mobility management network element for carrying the updated UE policy and the first parameter. In other words, the mobility management network element may transparently forward the received message carrying the updated UE policy and the first parameter to the terminal device, and add the parameter of the first time length information to the forwarded message.

Illustratively, in the embodiment of the present application, the mobility management network element may send the updated UE policy, the first parameter and the first time length information through a non-access stratum (NAS) message.

For S304, in this embodiment of the present application, after receiving the updated UE policy, the first parameter and the first time length information from the mobility management network element, the terminal device detects the first parameter first, if it is determined that the first parameter is the second value, detects the first time length information, determines the duration of the first timer according to the value of the first time length information, and delays policy update.

It should be noted that, in the embodiment of the present application, if the terminal device detects that the first time length information is zero, the network side is considered to not support the terminal device to delay the policy update, and the terminal device may immediately execute the policy update procedure. In other words, if the terminal device detects that the first time length information is non-zero, the network side is considered to support the terminal device to delay the policy update, and the terminal device determines the duration of the first timer according to the first time length information and delays the policy update.

In the embodiment of the application, the specific process of delaying the policy update by the terminal device is as follows: the terminal equipment starts a first timer and monitors the session corresponding to the V2X service during the operation period of the first timer. After the terminal equipment monitors that the session corresponding to the V2X service is naturally released, the terminal equipment updates the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy, or updates the locally stored UE strategy to be updated into the updated UE strategy, and initiates a new registration flow.

It may be understood that in the embodiment of the present application, the first timer may be understood as a maximum duration for which the support terminal device delays registration, and the support terminal device initiates registration within the period at the latest, without immediately re-registering.

In S304, since the terminal device has updated the previous UE policy to be updated, the session associated with the original UE policy to be updated is no longer authorized to perform the service, so that the terminal device needs to release the session associated with the UE policy to be updated for re-establishment, which can refer to the definition of the existing standard specifically, and will not be described herein.

In one possible implementation, the duration of the first timer may be the same as the value of the first duration information. For example, if the value of the first time length information is 3, the terminal device performs a predetermined (or carried in the first time length information) time unit according to the value of the first time length information: second(s), determining the duration of the first timer to be 3s.

In one possible implementation manner, the terminal device may retrieve the PDU session of the V2X service corresponding to the policy stored locally by the terminal device through the application identifier (application identity, app ID) of the V2X service.

Optionally, in the embodiment of the present application, if the terminal device does not monitor the session corresponding to the V2X service to be naturally released during the operation period of the first timer, after the first timer is ended, the terminal device may send a message for notifying the mobile management network element that the terminal device fails to delay policy update.

Optionally, in this embodiment of the present application, after the first timer is started, the terminal device may send indication information to the mobility management network element, where the indication information is used to indicate that the terminal device has received the updated UE policy, and may delay performing policy update (after the terminal device monitors, during operation of the first timer, release of a session corresponding to the V2X service, update, by using the UE policy corresponding to the locally stored service type associated with the updated UE policy, to the updated UE policy). In the embodiment of the present application, the indication message may also be referred to as a UE policy update result, or a UE configuration update response message. Based on the scheme, the terminal equipment can inform the network side that the updated UE strategy is received, and the terminal equipment is about to carry out delay updating.

In a possible implementation manner, the terminal device may indicate the mobility management network element through a parameter or a flag bit in the indication message. For example, the indication message includes a first bit and a second bit, where the value of the first bit is 1, where the first bit represents that the terminal device has received the updated UE policy, and the second bit is 2, where the second bit represents that the terminal device delays policy update.

Optionally, in the embodiment of the present application, after receiving an indication message sent by the terminal device (for indicating that the terminal device has received the updated UE policy and may delay the policy update), the mobility management network element may forward the indication message to the policy control network element.

In order to better understand the policy updating method provided in the embodiment of the present application, a specific example is described below, where the policy updating method includes S301-S304. As shown in fig. 4, the exemplary policy updating method includes S401-S405.

S401, the PCF network element determines to update the UE strategy.

The PCF network element determines that the UE is running V2X service, and the UE strategy with non-V2X strategy needs to be updated. Reference is made in particular to the description of S301 and S302 above.

S402, the PCF network element sends a strategy update message to the AMF network element, wherein the strategy update message comprises a V2X flag bit and the content of the updated UE strategy (or the updated UE strategy).

The PCF network element configures the value of the V2X zone bit to be 0, and carries the updated UE strategy, the V2X zone bit and the configuration update indicator with the value of 1 in a strategy update message and sends the strategy update message to the AMF network element. Reference is made in particular to the description of S302 above.

S403, the AMF network element transparently forwards the strategy update message to the UE through a NAS message (UE configuration update command message), wherein the UE configuration update command message also comprises delay registration information determined by the AMF network element.

After the AMF network element receives the policy update message, if the value of the V2X flag bit is detected to be 0, then the configuration update indicator is detected. After the AMF network element detects that the value of the configuration update indicator is 1, determining the value of the delay registration information, transparently forwarding the strategy update message to the UE through NAS information (UE configuration update command message), and adding the delay registration information in the UE configuration update command message forwarded to the UE. Reference is made in particular to the description of S303 above.

S404, the UE sends the UE strategy updating result to the AMF network element.

After receiving the UE configuration updating command message, the UE detects that the value of the V2X flag bit is 0, then the UE detects the delay registration information, determines that the value of the delay registration information is a non-zero value, starts a first timer, the duration of the first timer is the value of the delay registration information, and sends a UE strategy updating result for indicating that the UE has received an updated UE strategy and that the UE can delay the strategy updating to an AMF network element after starting the first timer. And the UE monitors the PDU session corresponding to the locally stored UE strategy during the starting period of the first timer, and updates the locally stored UE strategy to be updated after the natural release of the corresponding PDU session is monitored, so as to reinitiate the registration flow. Reference is made in particular to the description of S304 above.

S405, the AMF network element forwards a UE strategy updating result from the UE to the PCF network element.

It will be appreciated that in the various embodiments above, the methods and/or steps implemented by the terminal device may also be implemented by a component (e.g., a chip or circuit) that may be used in the terminal device; the methods and/or steps implemented by the policy control network element may also be implemented by a component (e.g., a chip or circuit) that may be used in the policy control network element; the methods and/or steps implemented by the mobility management element may also be implemented by a component (e.g., a chip or circuit) that may be used in the mobility management element.

The above description has been presented mainly from the point of interaction between the network elements. Alternatively, the mobility management network element, the policy control network element, or the terminal device in the embodiments of the present application may also be referred to as a communication apparatus, which may be a general-purpose device or a special-purpose device, which is not specifically limited in the embodiments of the present application.

Optionally, the related functions of the mobility management network element, the policy control network element, or the terminal device in the embodiments of 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, which is not specifically limited in the embodiments of the present application. It will be appreciated that the above described functionality may be either a network element in a hardware device, or a software functionality running on dedicated hardware, or a combination of hardware and software, or a virtualized functionality instantiated on a platform (e.g., a cloud platform).

For example, the embodiment of the application also provides a communication device, which is used for implementing the various methods. The communication device may be a terminal device in the above method embodiment, or a device including the above terminal device, or a component that may be used for the terminal device; alternatively, the communication device may be a policy control network element in the above method embodiment, or a device including the policy control network element, or a component that may be used for the policy control network element; alternatively, the communication device may be a mobility management element in the above method embodiment, or a device including the mobility management element, or a component that may be used for the mobility management element. It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the functional modules of the communication device may be divided according to the above embodiment of the method, 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 modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

Fig. 5 shows a schematic diagram of a communication device 50 in the case of functional module division. As shown in fig. 5, the communication device 50 includes a transceiver module 501 and a processing module 502.

In some embodiments, the communication device 50 may also include a memory module (not shown in fig. 5) for storing program instructions and data.

Taking the communication device as an example of the terminal device in the above method embodiment, the transceiver module 501 is configured to receive an updated UE policy and a first parameter from the mobility management network element, where the first parameter is used to characterize a service type associated with the updated UE policy and a service type currently operated by the communication device; the processing module 502 is configured to update a locally stored UE policy corresponding to a service type associated with the updated UE policy to an updated UE policy when the value of the first parameter is a first value, where the first value is used to indicate that the service type associated with the updated UE policy is a V2X service type, and the service type currently operated by the communication device is another service type other than the V2X service type.

As a possible implementation, the transceiver module 501 is further configured to receive first time length information from a mobility management network element; the processing module 502 is further configured to, when the value of the first parameter is a second value, start the first timer according to the first time length information, monitor a session corresponding to the V2X service during operation of the first timer, and update, by the communication device, a locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy after the session corresponding to the V2X service is released, where the second value is used to indicate that the service type associated with the updated UE policy is another service type other than the V2X service type, and the service type currently operated by the communication device is the V2X service type.

As a possible implementation, the transceiver module 501 is further configured to send, to the mobility management network element, indication information when the value of the first parameter is the second value, where the indication information is used to indicate that the communication device has received the updated UE policy, and update, after monitoring, during the operation of the first timer, a session release corresponding to the V2X service, a locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy.

All relevant contents of each step related to the above method embodiment may be cited to the functional descriptions of the corresponding functional modules, which are not described herein.

Taking the communication device as an example of the policy control network element in the above method embodiment, a processing module 502 is configured to determine a service type associated with a UE policy to be updated and a service type currently operated by a terminal device; the transceiver module 501 is configured to send, to the mobility management network element, the updated UE policy and a first parameter, where a value of the first parameter is a first numerical value, and the first numerical value is used to indicate that a service type associated with the updated UE policy is a V2X service type, and a service type currently operated by the terminal device is another service type other than the V2X service type, where a service type associated with the UE policy to be updated is the V2X service type, and a service type currently operated by the terminal device is another service type other than the V2X service type.

As a possible implementation, the transceiver module 501 is further configured to send, to the mobility management network element, the updated UE policy and the first parameter when the service type associated with the UE policy to be updated is a service type other than the V2X service type and the service type currently operated by the terminal device is the V2X service type, where the value of the first parameter is a second value, and the second value is used to indicate that the service type associated with the updated UE policy is a service type other than the V2X service type and the service type currently operated by the terminal device is the V2X service type.

As a possible implementation, the transceiver module 501 is further configured to receive indication information from the mobility management network element when a service type associated with the UE policy to be updated is a service type other than the V2X service type, and a service type currently operated by the terminal device is the V2X service type; the indication information is used for indicating that the terminal equipment has received the updated UE strategy, and updating the locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy after the session release corresponding to the V2X service is monitored during the operation of the first timer; the duration of the first timer is determined according to first duration information, and the first duration information is determined by the mobile management network element according to a first parameter.

Taking the communication device as an example of the mobility management network element in the above method embodiment, the transceiver module 501 is configured to receive the updated UE policy and the first parameter from the policy control network element; the first parameter is used for representing the service type associated with the updated UE strategy and the service type currently operated by the terminal equipment; a processing module 502, configured to determine first time length information according to the first parameter when the value of the first parameter is the second numerical value; the second value is used for indicating that the service type associated with the updated UE strategy is other service types except the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type; the first time length information is used for determining the time length of a first timer, the first timer is used for monitoring a session corresponding to the V2X service by the terminal equipment, and after the session corresponding to the V2X service is released, the locally stored UE strategy corresponding to the service type associated with the updated UE strategy is updated into the updated UE strategy; the transceiver module 501 is further configured to send the updated UE policy, the first parameter, and the first time length information to the terminal device.

As a possible implementation, the transceiver module 501 is further configured to send the updated UE policy and the first parameter to the terminal device when the value of the first parameter is the first numerical value; the first value is used for indicating that the service type associated with the updated UE strategy is a V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type.

As a possible implementation, the transceiver module 501 is further configured to receive, when the value of the first parameter is the second value, indication information from the terminal device, where the indication information is used to indicate that the terminal device has received the updated UE policy, and update, after a session release corresponding to the V2X service is monitored during the operation of the first timer, a locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy; and sending the indication message to the strategy control network element.

In the case of implementing the functions of the above-described functional modules in the form of hardware, fig. 6 shows a schematic configuration of another communication apparatus 60. As shown in fig. 6, the communication device includes a processor 601, a memory 602, and a bus 603. The processor 601 and the memory 602 may be connected by a bus 603.

The processor 601 is a control center of the communication device 60, and may be one processor or a collective name of a plurality of processing elements. For example, the processor 601 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.

As one example, processor 601 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 6.

The memory 602 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage 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 602 may exist separately from the processor 601, and the memory 602 may be connected to the processor 601 through the bus 603 for storing instructions or program codes. When the processor 601 calls and executes the instructions or the program codes stored in the memory 602, the method for using the one-time identification provided by the embodiment of the invention can be implemented.

In another possible implementation, the memory 602 may also be integrated with the processor 601.

Bus 603 may be an industry standard architecture (industry standard architecture, ISA) bus, a peripheral component interconnect (peripheral component interconnect, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.

It should be noted that the structure shown in fig. 6 does not constitute a limitation of the communication device 60. The communication device 60 may include more or less components than shown in fig. 6, or may combine certain components, or may be arranged in a different arrangement of components.

As an example, in connection with fig. 5, the transceiver module 501 and the processing module 502 in the communication device 50 implement the same functions as the processor 601 in fig. 6.

Optionally, as shown in fig. 6, the communication device 60 provided in the embodiment of the present application may further include a communication interface 604.

Communication interface 604 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 604 may include a receiving unit for receiving data and a transmitting unit for transmitting data.

In a possible implementation manner, in the communication device 60 provided in the embodiment of the present application, the communication interface 604 may also be integrated in the processor 601, which is not specifically limited in the embodiment of the present application.

As an example, in connection with fig. 5, the transceiver module 501 in the communication device 50 performs the same function as the communication interface 601 in fig. 6.

As one possible product form, the communication device of the embodiments of the present application may also be implemented using the following: one or more field programmable gate arrays (fieldprogrammable gate array, FPGA), programmable logic devices (programmable logic device, PLD), controllers, state machines, gate logic, discrete hardware components, any other suitable circuit or combination of circuits capable of performing the various functions described throughout this application.

From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The embodiment of the present invention also provides a computer-readable storage medium, where instructions are stored, and when the computer executes the instructions, the computer executes each step in the method flow shown in the above method embodiment.

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

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 a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (RandomAccess Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill 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. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in a special purpose ASIC. In the context 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 communication apparatus, the computer readable storage medium, and the computer program product provided in this embodiment can be applied to the policy updating method provided in this embodiment, the technical effects that can be obtained by the method may also refer to the method embodiment described above, and the embodiments of the present invention are not described herein again.

Although the present application has been described herein 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 figures, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "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 connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method of policy updating, the method comprising:

the method comprises the steps that a terminal device receives updated User Equipment (UE) strategies from a mobile management network element and first parameters, wherein the first parameters are used for representing service types associated with the updated UE strategies and service types currently operated by the terminal device;

under the condition that the value of the first parameter is a first value, the terminal equipment updates a locally stored UE strategy corresponding to the service type associated with the updated UE strategy into the updated UE strategy, wherein the first value is used for indicating that the service type associated with the updated UE strategy is a vehicle-to-vehicle universal V2X service type, and the service type currently operated by the terminal equipment is other service types except the V2X service type;

the terminal equipment receives first time length information from the mobile management network element;

when the value of the first parameter is a second value, the terminal equipment starts a first timer according to the first time length information, monitors a session corresponding to the V2X service during the operation period of the first timer, and updates the locally stored UE policy corresponding to the service type associated with the updated UE policy into the updated UE policy after the session corresponding to the V2X service is released, wherein the second value is used for indicating that the service type associated with the updated UE policy is other service types than the V2X service type, and the service type currently operated by the terminal equipment is the V2X service type;

When the value of the first parameter is the second value, the terminal device sends indication information to the mobility management network element, where the indication information is used to indicate that the terminal device has received the updated UE policy, and after a session release corresponding to the V2X service is monitored during the operation of the first timer, update the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy;

the indication information comprises a first bit and a second bit, wherein the value of the first bit is 1, which represents that the terminal equipment has received updated UE strategy, and the second bit is 2, which represents that the terminal equipment delays strategy updating;

after receiving the updated UE strategy and delaying the strategy updating, forwarding the indication information to a strategy control network element;

detecting a configuration update indicator if the value of the first parameter is the second value, comprising: the configuration update indicator indicates that the terminal equipment needs to register after updating the UE strategy, and the mobile management network element determines first time length information; otherwise, uncertainty;

After receiving updated UE strategy, first parameter and first time length information from mobile management network element, the terminal equipment detects the first parameter first, if the first parameter is determined to be a second value, then detects the first time length information, determines the duration of a first timer according to the value of the first time length information, and delays strategy update;

if the terminal equipment detects that the first time length information is zero, determining that the network side does not support the terminal equipment to delay the policy updating, and immediately executing a policy updating flow; if the terminal equipment detects that the first time length information is nonzero, determining that the network side supports the terminal equipment to delay the policy updating, determining the time length of the first timer according to the first time length information, and delaying the policy updating.

2. A method of policy updating, the method comprising:

the method comprises the steps that a policy control network element determines a service type associated with a User Equipment (UE) policy to be updated and a service type currently operated by terminal equipment;

in the case that the service type associated with the UE policy to be updated is a vehicle-to-vehicle (V2X) service type and the service type currently operated by the terminal device is another service type other than the V2X service type, the policy control network element sends the updated UE policy and a first parameter to a mobility management network element, where a value of the first parameter is a first numerical value, and the first numerical value is used to indicate that the service type associated with the updated UE policy is the V2X service type and the service type currently operated by the terminal device is another service type other than the V2X service type;

When the service type associated with the UE policy to be updated is other service types than the V2X service type and the service type currently operated by the terminal device is the V2X service type, the policy control network element sends the updated UE policy and a first parameter to a mobility management network element, where a value of the first parameter is a second value, and the second value is used to indicate that the service type associated with the updated UE policy is other service types than the V2X service type and the service type currently operated by the terminal device is the V2X service type;

when the service type associated with the UE strategy to be updated is other service types except the V2X service type and the service type currently operated by the terminal equipment is the V2X service type, the strategy control network element receives indication information from the mobile management network element; the indication information is used for indicating that the terminal equipment has received the updated UE policy, and updating the locally stored UE policy corresponding to the service type associated with the updated UE policy into the updated UE policy after the session release corresponding to the V2X service is monitored during the operation of the first timer; the duration of the first timer is determined according to first time length information, and the first time length information is determined by the mobility management network element according to the first parameter;

after determining that policy updating is delayed, receiving the indication information sent by the terminal equipment and forwarding the indication information to a policy control network element;

3. A communication device, the communication device comprising: a transceiver module and a processing module;

the transceiver module is configured to receive an updated UE policy and a first parameter from a mobility management network element, where the first parameter is used to characterize a service type associated with the updated UE policy and a service type currently operated by the communication device;

the processing module is configured to update a locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy when the value of the first parameter is a first value, where the first value is used to indicate that the service type associated with the updated UE policy is a vehicle-to-vehicle (V2X) service type, and the service type currently operated by the communication device is another service type other than the V2X service type;

the transceiver module is further configured to receive first time length information from the mobility management network element;

the processing module is further configured to, when the value of the first parameter is a second value, start a first timer according to the first time length information, monitor a session corresponding to the V2X service during operation of the first timer, and update, after release of the session corresponding to the V2X service, the locally stored UE policy corresponding to the service type associated with the updated UE policy to the updated UE policy, where the second value is used to indicate that the service type associated with the updated UE policy is another service type other than the V2X service type, and the service type currently operated by the communication device is the V2X service type;

The transceiver module is further configured to send, when the value of the first parameter is the second value, indication information to the mobility management network element, where the indication information is used to indicate that the communication device has received the updated UE policy, and update, after a session release corresponding to the V2X service is monitored during operation of the first timer, the locally stored UE policy corresponding to a service type associated with the updated UE policy to the updated UE policy;

4. A communication device, the communication device comprising: a processing module and a receiving-transmitting module;

the processing module is used for determining the service type related to the UE policy of the user equipment to be updated and the service type currently operated by the terminal equipment;

the transceiver module is configured to send an updated UE policy and a first parameter to a mobility management network element when the service type associated with the UE policy to be updated is a vehicle-to-vehicle (V2X) service type and the service type currently operated by the terminal device is another service type other than the V2X service type, where a value of the first parameter is a first value, and the first value is used to indicate that the service type associated with the updated UE policy is the V2X service type and the service type currently operated by the terminal device is another service type other than the V2X service type;

The transceiver module is further configured to send, when the service type associated with the UE policy to be updated is another service type than the V2X service type and the service type currently operated by the terminal device is the V2X service type, an updated UE policy and a first parameter to a mobility management network element, where a value of the first parameter is a second value, and the second value is used to indicate that the service type associated with the updated UE policy is another service type than the V2X service type, and the service type currently operated by the terminal device is the V2X service type;

the transceiver module is further configured to receive indication information from the mobility management network element when the service type associated with the UE policy to be updated is another service type other than the V2X service type, and the service type currently operated by the terminal device is the V2X service type; the indication information is used for indicating that the terminal equipment has received the updated UE policy, and updating the locally stored UE policy corresponding to the service type associated with the updated UE policy into the updated UE policy after the session release corresponding to the V2X service is monitored during the operation of the first timer; the duration of the first timer is determined according to first time length information, and the first time length information is determined by the mobility management network element according to the first parameter;

5. A communication device, the communication device comprising: a processor;

the processor is configured to read computer-executable instructions in memory and execute the computer-executable instructions to cause the communication device to perform the method of claim 1.

6. A communication device, the communication device comprising: a processor;

the processor is configured to read computer-executable instructions in the memory and execute the computer-executable instructions to cause the communication device to perform the method of claim 2.

7. A computer readable storage medium, having stored therein a computer program or instructions which, when executed by a communication device, implement the method of claim 1.

8. A computer readable storage medium, having stored therein a computer program or instructions which, when executed by a communication device, implement the method of claim 2.