CN118042521A

CN118042521A - Policy coordination method, device, equipment and medium

Info

Publication number: CN118042521A
Application number: CN202211409560.3A
Authority: CN
Inventors: 黎明雪; 刘海; 龙彪
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2024-05-14
Also published as: WO2024098933A1

Abstract

The disclosure provides a policy coordination method, device, equipment and medium, and relates to the technical field of wireless communication and terminals. The method comprises the following steps: the PCF receives a policy request from a terminal; and under the condition that an effective strategy cannot be provided for the terminal, a rejection request message is sent to the terminal, wherein the rejection request message carries a reason value for rejecting the strategy request, and the reason value for rejecting the strategy request is used for indicating that the terminal does not repeatedly apply the same strategy. According to the embodiment of the disclosure, the number of times that the terminal repeatedly applies the same strategy can be reduced, and unnecessary signaling overhead is reduced.

Description

Policy coordination method, device, equipment and medium

Technical Field

The disclosure relates to the technical field of wireless communication and terminals, and in particular relates to a policy coordination method, device, equipment and medium.

Background

After the terminal accesses some communication systems, the terminal must acquire the strategy provided by the system to realize the corresponding system task. For example, proSe (Proximity based Services, proximity services) system, the terminal acquires the policy provided by the system, so as to actually implement ProSe service. The strategy for effectively coordinating the issuing of the terminal is of vital importance to the system, and how to effectively coordinate the issuing of the strategy is a problem to be solved at present.

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

Disclosure of Invention

The inventor finds through research that the communication system in the related art does not limit the frequency of the terminal requesting the policy, so that the terminal is likely to repeatedly apply the same policy, which results in too much unnecessary network signaling overhead, and signaling storm occurs in extreme cases. How to effectively coordinate policy issuing, reduce the number of times of repeated policy application by a terminal, and reduce network signaling overhead is a problem to be solved.

In view of the above, the present disclosure provides a policy coordination method, apparatus, device, and medium. It should be noted that, although the above description uses a ProSe system as an example, the present disclosure is also applicable to other scenarios such as a 5GV2X (Vehicle-to-evaluation) system or a D2D (Device-to-Device) system, and achieves technical effects similar to those in the ProSe system. The embodiments of the present disclosure and features in the embodiments may be arbitrarily combined with each other without collision.

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

According to one aspect of the present disclosure, there is provided a policy coordination method applied to a policy control function PCF, the method including:

Receiving a policy request from a terminal;

And under the condition that an effective strategy cannot be provided for the terminal, a rejection request message is sent to the terminal, wherein the rejection request message carries a reason value for rejecting the strategy request, and the reason value for rejecting the strategy request is used for indicating that the terminal does not repeatedly apply the same strategy.

In one embodiment of the present disclosure, the method further comprises:

receiving a new policy request of the terminal, wherein the new policy request is sent by the terminal under the condition of meeting the retransmission condition;

wherein the retransmission condition is met in one or more of the following cases:

And after the terminal is powered off, the terminal is powered on again, after the USIM card of the terminal is removed, the network side initiates a management flow of the terminal strategy, and the terminal position moves.

In one embodiment of the present disclosure, the method further comprises:

and under the condition that the effective strategy of the terminal exists, issuing the effective strategy to the terminal.

In one embodiment of the present disclosure, the method further comprises:

The policy request rejecting function of the NAS protocol is enhanced, the function of UPDS cause IE fields of the policy request rejecting message is expanded, and the reason value of the policy request rejecting by the PCF is newly increased.

In one embodiment of the present disclosure, the reason value for rejecting the policy request is determined based on the reason that the PCF is unable to provide the terminal with a valid policy;

Reasons for the inability of the PCF to provide an efficient policy for the terminal include the PCF itself having no associated policy or the PCF itself not having sufficient capability to provide an associated policy.

According to another aspect of the present disclosure, there is provided a policy coordination method, applied to a terminal, the method including:

Sending a policy request to a policy control function PCF;

receiving a rejection request message from the PCF, wherein the rejection request message is sent by the PCF under the condition that an effective policy cannot be provided for the terminal, and the rejection request message carries a reason value for rejecting the policy request;

based on the indication of the cause value of the reject policy request, the same policy is not repeatedly applied.

In one embodiment of the present disclosure, based on the indication of the cause value of the reject policy request, the same policy is not repeatedly applied for, including:

Based on the indication of the reason value of the refusing strategy request, the same strategy is not repeatedly applied under the condition that the retransmission condition is not met;

If the retransmission condition is met, sending a policy request to the PCF again;

According to another aspect of the present disclosure, there is provided a policy coordination device applied to a policy control function PCF, the device comprising:

the request receiving module is used for receiving a policy request from the terminal;

and the message sending module is used for sending a refusing request message to the terminal under the condition that an effective strategy can not be provided for the terminal, wherein the refusing request message carries a reason value for refusing the strategy request, and the reason value for refusing the strategy request is used for indicating the terminal not to repeatedly apply the same strategy.

According to another aspect of the present disclosure, there is provided a policy coordination device applied to a terminal, the device including:

a request sending module, configured to send a policy request to a policy control function PCF;

The message receiving module is used for receiving a refusing request message from the PCF, wherein the refusing request message is sent by the PCF under the condition that an effective policy can not be provided for the terminal, and the refusing request message carries a reason value for refusing the policy request;

and the information processing module is used for not repeatedly applying the same strategy based on the indication of the reason value of the refusing strategy request.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a memory for storing instructions; and the processor is used for calling the instructions stored in the memory to realize the strategy coordination method.

According to yet another aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the policy coordination method described above.

According to yet another aspect of the present disclosure, there is provided a computer program product storing instructions that, when executed by a computer, cause the computer to implement the policy coordination method described above.

According to yet another aspect of the present disclosure, there is provided a chip comprising at least one processor and an interface;

An interface for providing program instructions or data to at least one processor;

At least one processor is configured to execute the program instructions to implement the policy coordination method described above.

According to the policy coordination method, device, equipment and medium provided by the embodiment of the disclosure, the PCF sends the rejection request message to the terminal under the condition that the PCF can not provide the effective policy for the terminal, the rejection request message carries the reason value of the rejection policy request, and the terminal recognizes that the reason value of the rejection policy request does not repeatedly apply the same policy, so that the number of times that the terminal repeatedly applies the same policy is reduced, and unnecessary signaling overhead is reduced.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic architecture diagram of a 5G ProSe system in the related art;

FIG. 2 is a schematic diagram of a 5G V2X system according to the related art;

FIG. 3 shows a flow chart of a policy coordination method in the related art;

FIG. 4 illustrates a flow chart of a policy coordination method in an embodiment of the present disclosure;

FIG. 5 illustrates another policy coordination method flow diagram in an embodiment of the present disclosure;

FIG. 6 illustrates a signaling flow diagram of a policy coordination method in an embodiment of the present disclosure;

FIG. 7 illustrates a flowchart of yet another policy coordination method in an embodiment of the present disclosure;

FIG. 8 illustrates a flowchart of yet another policy coordination method in an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of a policy coordination device according to an embodiment of the disclosure;

FIG. 10 illustrates another strategy coordination device schematic in an embodiment of the present disclosure;

fig. 11 shows a block diagram of an electronic device in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully hereinafter with reference to the accompanying drawings.

It should be noted that the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein.

The embodiments of the present disclosure may be applied to ProSe systems, 5g V2 x systems, D2D systems, and the like.

The basis of the near domain access technology is D2D (Device-to-Device) communication based on cellular networks, otherwise known as ProSe (Proximity based Services, proximity services). In the new generation of near domain access technology, proSe-enabled terminals may connect with multiple neighboring terminal-to-U2N Relay (UE to Network Relay, network Relay) over high frequency links and access the cellular network through these U2N Relay. The architecture of the 5G ProSe system may be as shown in fig. 1.

V2X (Vehicle-to-evaluation) services in 5G systems, including fusion of 5G with the Internet of vehicles: the 5G technology is applied to realize network connection between the vehicle and X (vehicle-to-vehicle, people, road and service platform), and is also the vertical application of 5G in the Internet of vehicles. The service types of the Internet of vehicles are various, and the actual deployment scene can be divided into a medium-low time delay, a high time delay requirement scene, a large connection scene and an automatic driving-oriented comprehensive scene. The architecture of the 5g v2x system may be as shown in fig. 2.

In one embodiment, as shown in fig. 2, UE a and UE B may be vehicle or in-vehicle communication devices; UE C may be a terminal device used by pedestrians; UE D may be a stationary terminal device, e.g. a street lamp.

After the terminal is accessed to the 5G V2X system and the ProSe system, the strategy provided by the system is required to be obtained, so that the 5G V2X and the ProSe service can be truly realized. How the 5g v2x and ProSe system effectively coordinates the policy issued to the terminal is of great importance.

If the terminal supports V2X or ProSe communication, but there is no valid policy V2XP (policy of V2X) or ProSeP (policy of ProSe), the terminal may request policy issuing during registration; if the terminal already has a valid terminal policy, the policy need not be requested again before the terminal policy fails.

The inventor discovers that if the terminal discovers that the terminal does not have an effective policy, the current 5G V2X system and the 5G ProSe system do not limit the frequency of the terminal request V2XP or ProSeP, so that the terminal is likely to repeatedly apply for the same policy, so that too much unnecessary network signaling overhead is generated, and signaling storm occurs in extreme cases.

Fig. 3 shows a flowchart of a policy coordination method in the related art, and as shown in fig. 3, the policy coordination method provided in the related art includes steps S301 to S304.

In S301, after the V2X/ProSe terminal (UE) registers with the network, when no valid policy is found, a related policy request is initiated to the PCF (Policy Control function ).

In S302, the PCF finds that the policy of the terminal is not suitable, and rejects the policy request of the terminal.

In S303, the terminal continues to initiate the same policy request to the PCF, as no relevant policies are available.

In S304, the PCF can only reject the policy request of the terminal continuously, i.e. steps S303-S304 are repeated continuously.

Fig. 4 shows a flowchart of a policy coordination method according to an embodiment of the present disclosure, and as shown in fig. 4, the policy coordination method provided in the embodiment of the present disclosure includes steps S410 to S430.

In S410, the terminal sends a policy request to the PCF.

The terminal according to the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection, or other processing device connected to a wireless modem, etc.

The terminal may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN). The terminals in the embodiments of the disclosure include, but are not limited to, mobile phones, tablet computers, notebooks, vehicle-mounted Communication devices, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, vehicles, RSUs, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (MACHINE TYPE Communication) terminals, eMTC (ENHANCED MTC ) terminals, data cards, network cards, vehicle-mounted Communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless Communication devices.

In some embodiments, the policy request may be sent to the PCF after the terminal has registered with the network and found that there is no valid policy. The terminal may be a V2X and/or ProSe enabled terminal and the network may be a 5G V2X system and/or a 5G ProSe system.

In one embodiment, the terminal sends a policy request to the PCF, which may be a policy requesting configuration for V2X communication.

In another embodiment, the terminal sends a policy request to the PCF, which may be a policy requesting configuration for 5G ProSe communication.

In S420, the PCF sends a reject request message to the terminal, where the reject request message carries a cause value for rejecting the policy request, in case that the PCF cannot provide the terminal with a valid policy.

In the 5G V2X system as well as the 5G ProSe system, the PCF may not have the ProSe or V2X policy (policy) appropriate for the terminal, and when the terminal requests the policy, the PCF cannot provide and then replies with a reject request message.

In one embodiment, the PCF may reject the policy request if: the PCF itself has no associated policies or the PCF itself has a capability problem that is insufficient to provide the associated policies. The PCF self-capability problem may be a failure of an internal device of the PCF, or a congestion control state.

In some embodiments, the disclosure may enhance the policy request rejection function of the NAS protocol, extend the function of UPDS cause IE field of the reject policy request message, and newly add the cause value of the PCF rejecting the policy request, and then may carry the cause value of rejecting the policy request in the reject request message.

As an example, when the PCF itself has no associated policy, the cause value of the PCF rejecting the policy request may be "UE policies not available for requesting" to explicitly indicate that the terminal does not apply for the policy again.

As an example, when the relevant policy cannot be provided due to the PCF's own capability problem, the cause value of the PCF rejecting the policy request may be "UE policies not supported for requesting" to explicitly indicate that the terminal does not apply the policy again.

In some embodiments, the method may further include issuing the valid policy to the terminal in the presence of the valid policy of the terminal.

In S430, the terminal does not repeatedly apply for the same policy based on the indication of the cause value of the reject policy request.

After receiving the reject request message with reject cause "UE policies not available for requesting", the terminal will stop the request attempt to initiate the same policy to the PCF.

The inventor finds that, for the 5G network side, in addition to how to prevent the terminal from repeatedly applying the same policy, it needs to be considered that in some cases, the terminal needs to apply a new policy, for example, the terminal performs a position migration, and the terminal is powered off and powered on.

In some embodiments, S430 may include: the terminal does not repeatedly apply the same strategy under the condition that the terminal does not accord with the retransmission condition based on the indication of the reason value of rejecting the strategy request; if the retransmission condition is satisfied, the policy request is sent again to the PCF.

In one embodiment, the retransmission condition is met in one or more of the following cases:

As an example, the network side initiates a management procedure for the terminal policy, which may be MANAGE UE POLICY COMMAND message (adding or modifying policy content of the terminal) sent from the network.

As an example, the terminal location movement may be a change in PLMN or a change in Tracking Area (TA), etc., which may also cause the terminal to access a new PCF.

In the embodiment of the disclosure, the terminal sends the policy request to the PCF again under the condition of meeting the retransmission condition, the PCF receives the new policy request of the terminal, and then, the PCF determines whether the effective policy of the terminal exists again, if the effective policy cannot be provided for the terminal, the PCF sends a rejection request message to the terminal, and carries a reason value of rejecting the policy request in the rejection request message, and if the effective policy of the terminal exists, the PCF issues the effective policy to the terminal.

Aiming at a policy request and response system between the UE and the PCF based on 5G V2X and ProSe, the embodiment of the disclosure expands PCF policy refusal request information (namely, a UPDS cause IE field is newly added with a refusal result value), thereby avoiding the problem that the terminal repeatedly applies the same policy; meanwhile, the specific requirement of the terminal for providing a new strategy request is considered, so that unnecessary signaling overhead is reduced for a 5G V2X and ProSe strategy request and response system, and support is provided for successful development of subsequent V2X and ProSe services.

Fig. 5 shows a flowchart of a policy coordination method in an embodiment of the present disclosure, and as shown in fig. 5, the policy coordination method provided in the embodiment of the present disclosure includes steps S510 to S550.

In S501, after V2X/ProSe terminal (UE) registers with the network, when no valid policy is found, a related policy request is initiated to PCF (Policy Control function ).

In S502, the PCF finds that the policy of the terminal is not suitable, rejects the policy request of the terminal, and carries the reason value of rejecting the policy request in the reject request message.

In S503, after receiving the reject request message with the cause value of the reject policy request, the terminal goes to step S504, stops initiating the policy request to the PCF, and in case of triggering the retransmission condition, goes to step S505, and initiates the related policy request to the PCF again.

The retransmission conditions are described in detail above, and are not described here again.

Fig. 6 shows a signaling flow of a policy coordination method in an embodiment of the present disclosure, as shown in fig. 6, where, based on related art, a reason value for rejecting a policy request is added to a request rejection message signaling of a PCF, where the reason value may be "UE policies not available for requesting", and a terminal (UE) may identify the reason value and stop a request attempt to initiate the same policy to the PCF, unless the following situation occurs:

1) Starting up the terminal again after the terminal is shut down;

2) After the USIM card of the terminal is removed;

3) The network side initiates a management flow of the terminal policy, for example, MANAGE UE POLICY COMMAND message (adding or modifying policy content of the terminal) sent by the network is received;

4) The terminal performs a location shift, such as a PLMN change, or a Tracking Area (TA) change, etc.

In the above scenario, the terminal (UE) may initiate a policy request again to the PCF.

Embodiments of the present disclosure generally relate to a system unit including: a terminal (UE), a line access side (RAN), an access mobility management function (AMF), a Policy Control Function (PCF), and the embodiments of the present disclosure are discussed below with respect to the PCF side and the terminal side, respectively.

Fig. 7 shows a policy coordination method applied to a policy control function PCF, as shown in fig. 7, comprising steps S710-S720.

In S710, receiving a policy request from a terminal;

In S720, in the case that the valid policy cannot be provided for the terminal, a reject request message is sent to the terminal, where the reject request message carries a reason value for rejecting the policy request, where the reason value for rejecting the policy request is used to indicate that the terminal does not repeatedly apply for the same policy.

In some embodiments, the PCF needs to enhance the function of responding to the policy request of the terminal, extend the function of UPDS cause IE field of the reject request message, and newly increase the cause value of the PCF rejecting the policy request, to explicitly indicate that the terminal does not need to repeatedly apply the same policy.

In one embodiment, the policy request rejection function of the NAS protocol may be enhanced, mainly by expanding UPDS cause IE fields, and newly adding an instruction for restricting the terminal to repeatedly sound the same policy request. When the UE makes a policy request to the PCF, if the PCF does not have a proper policy, the PCF returns a request rejection message carrying the same policy request instruction repeatedly sent by the limiting terminal to the terminal, and the subsequent policy request behavior of the terminal is restrained.

Fig. 8 shows a policy coordination method applied to a terminal, and as shown in fig. 8, the policy coordination method includes steps S810-S830.

In S810, sending a policy request to a policy control function PCF;

In S820, a reject request message from the PCF is received, where the reject request message is sent by the PCF in the case that the PCF cannot provide the terminal with an effective policy, and the reject request message carries a cause value for rejecting the policy request;

In S830, the same policy is not repeatedly applied based on the indication of the cause value of the reject policy request.

In some embodiments, the terminal may be a V2X or ProSe service capable terminal that supports identifying a new reject cause "UE policies not available for requesting" in the reject request message from the PCF and ceasing to apply the same policy based on the cause value; meanwhile, the judgment capability for certain specific situations is newly increased: if the terminal is powered on again after being powered off, after the USIM card of the terminal is removed, the network side initiates a management flow of the terminal policy, and the terminal position moves (such as a PLMN change or a tracking area TA change, etc.), the terminal breaks through the limit of the previous policy request and initiates a new policy request.

In the presently disclosed embodiments, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The term "and/or" in this disclosure is merely one association relationship describing the associated object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results.

In some embodiments, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

Based on the same inventive concept, a policy coordination device is also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 9 illustrates a policy coordination device in an embodiment of the disclosure, which is applied to a policy control function PCF, as shown in fig. 9, the policy coordination device 900 includes:

A request receiving module 902, configured to receive a policy request from a terminal;

The message sending module 904 is configured to send a rejection request message to the terminal when an effective policy cannot be provided for the terminal, where the rejection request message carries a reason value for rejecting a policy request, and the reason value for rejecting the policy request is used to indicate that the terminal does not repeatedly apply for the same policy.

In some embodiments, the policy coordination device 900 may further include:

a second request receiving module, configured to receive a new policy request of the terminal, where the new policy request is sent by the terminal when the retransmission condition is met;

In some embodiments, the policy coordination device 900 may further include:

and the strategy issuing module is used for issuing the effective strategy to the terminal under the condition that the effective strategy of the terminal exists.

In some embodiments, the policy coordination device 900 may further include:

and the function expansion module is used for enhancing the strategy request rejection function of the NAS protocol, expanding the function of UPDS cause IE fields of strategy request rejection information and newly adding the reason value of PCF (policy and function control function) rejection strategy request.

Based on the same inventive concept, the embodiment of the present disclosure further provides a policy coordination device applied to a terminal, as shown in fig. 10, where the policy coordination device 1000 includes:

a request sending module 1002, configured to send a policy request to a policy control function PCF;

A message receiving module 1004, configured to receive a rejection request message from the PCF, where the rejection request message is sent by the PCF when the PCF cannot provide the terminal with an effective policy, and the rejection request message carries a cause value for rejecting the policy request;

the information processing module 1006 is configured to not repeatedly apply for the same policy based on the indication of the cause value of the reject policy request.

In some embodiments, the information processing module 1006 includes:

the first processing unit is used for repeatedly applying the same strategy under the condition that the retransmission condition is not met based on the indication of the reason value of the strategy request rejection;

The second processing unit is used for sending the policy request to the PCF again under the condition that the retransmission condition is met;

The terms "first," "second," and the like in this disclosure are used solely to distinguish one from another device, module, or unit, and are not intended to limit the order or interdependence of functions performed by such devices, modules, or units.

The specific manner in which the respective modules perform the operations in the policy coordination device in the above embodiment has been described in detail in the embodiment regarding the policy coordination method, and will not be described in detail here.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory.

Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

An electronic device provided by an embodiment of the present disclosure is described below with reference to fig. 11. The electronic device 1100 shown in fig. 11 is merely an example and should not be construed as limiting the functionality and scope of use of the disclosed embodiments.

Fig. 11 shows a schematic architecture diagram of an electronic device 1100 according to the present disclosure. As shown in fig. 11, the electronic device 1100 includes, but is not limited to: at least one processor 1110, at least one memory 1120.

Memory 1120 for storing instructions.

In some embodiments, memory 1120 may include a readable medium in the form of a volatile memory unit, such as Random Access Memory (RAM) 11201 and/or cache memory 11202, and may further include a Read Only Memory (ROM) 11203.

In some embodiments, memory 1120 may also include a program/utility 11204 having a set (at least one) of program modules 11205, such program modules 11205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

In some embodiments, memory 1120 may store an operating system. The operating system may be a real-time operating system (Real Time eXecutive, RTX), LINUX, UNIX, WINDOWS, or an operating system such as OS X.

In some embodiments, memory 1120 may also have data stored therein.

As one example, processor 1110 may read data stored in memory 1120, which may be stored at the same memory address as the instructions, or which may be stored at a different memory address than the instructions.

A processor 1110 for invoking instructions stored in memory 1120 to perform steps according to various exemplary embodiments of the present disclosure described in the above "exemplary methods" section of the present specification. For example, the processor 1110 may perform the following steps of the method embodiments described above:

Receiving a policy request from a terminal;

and under the condition that an effective strategy cannot be provided for the terminal, sending a rejection request message to the terminal, wherein the rejection request message carries a reason value for rejecting the strategy request, and the reason value for rejecting the strategy request is used for indicating that the terminal does not repeatedly apply the same strategy.

Or, the following steps of the method embodiment are executed:

Sending a policy request to a policy control function PCF;

Receiving a rejection request message from the PCF, wherein the rejection request message is sent by the PCF under the condition that effective strategies cannot be provided for the terminal, and the rejection request message carries a reason value for rejecting strategy requests;

The processor 1110 may be a general-purpose processor or a special-purpose processor. Processor 1110 may include one or more processing cores, with processor 1110 executing various functional applications and data processing by executing instructions.

In some embodiments, processor 1110 may include a central processor (central processing unit, CPU) and/or a baseband processor.

In some embodiments, processor 1110 may determine an instruction based on a priority identification and/or functional class information carried in each control instruction.

In this disclosure, the processor 1110 and the memory 1120 may be provided separately or may be integrated.

As one example, processor 1110 and memory 1120 may be integrated on a single board or System On Chip (SOC).

As shown in fig. 11, the electronic device 1100 is embodied in the form of a general purpose computing device. The electronic device 1100 may also include a bus 1130.

Bus 1130 may be a local bus representing one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or using any of a variety of bus architectures.

The electronic device 1100 may also communicate with one or more external devices 1140 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 1100, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 1100 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 1150.

Also, electronic device 1100 can communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 1160.

As shown in fig. 11, the network adapter 1160 communicates with other modules of the electronic device 1100 via the bus 1130.

It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 1100, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

It is to be understood that the illustrated structure of the presently disclosed embodiments does not constitute a particular limitation of the electronic device 1100. In other embodiments of the present disclosure, electronic device 1100 may include more or fewer components than shown in FIG. 11, or certain components may be combined, certain components may be separated, or a different arrangement of components. The components shown in fig. 11 may be implemented in hardware, software, or a combination of software and hardware.

The present disclosure also provides a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the policy coordination method described in the above method embodiments.

A computer-readable storage medium in an embodiment of the present disclosure is a computer instruction that can be transmitted, propagated, or transmitted for use by or in connection with an instruction execution system, apparatus, or device.

As one example, the computer-readable storage medium is a non-volatile storage medium.

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

In an embodiment of the present disclosure, a computer-readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with computer instructions (readable program code) carried therein.

Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing.

In some examples, the computing instructions contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

The disclosed embodiments also provide a computer program product storing instructions that, when executed by a computer, cause the computer to implement the policy coordination method described in the method embodiments above.

The instructions may be program code. In particular implementations, the program code can be written in any combination of one or more programming languages.

The programming languages include object oriented programming languages such as Java, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages.

The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.

In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

The embodiment of the disclosure also provides a chip comprising at least one processor and an interface;

At least one processor is configured to execute the program instructions to implement the policy coordination method described in the method embodiments above.

In some embodiments, the chip may also include a memory for holding program instructions and data, the memory being located either within the processor or external to the processor.

Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above embodiments may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein.

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

Claims

1. A policy coordination method, applied to a policy control function PCF, the method comprising:

Receiving a policy request from a terminal;

2. The method according to claim 1, wherein the method further comprises:

Receiving a new policy request of the terminal, wherein the new policy request is sent by the terminal under the condition of meeting a retransmission condition;

3. The method according to claim 1, wherein the method further comprises:

4. The method according to claim 1, wherein the method further comprises:

And enhancing the strategy request rejecting function of the NAS protocol, expanding the function of UPDS cause IE fields of the strategy request rejecting message, and newly adding the reason value of the PCF strategy request rejecting.

5. The method of claim 1, wherein the reason value for rejecting the policy request is determined based on a reason that the PCF is unable to provide the terminal with a valid policy;

reasons for the PCF not being able to provide an effective policy for the terminal include the PCF itself not having an associated policy or the PCF itself not being able to provide an associated policy.

6. A policy coordination method, applied to a terminal, the method comprising:

Sending a policy request to a policy control function PCF;

7. The method of claim 6, wherein the refraining from repeatedly applying for the same policy based on the indication of the cause value of the reject policy request comprises:

sending a policy request to the PCF again under the condition that the retransmission condition is met;

8. A policy coordination device for application to a policy control function PCF, said device comprising:

And the message sending module is used for sending a rejection request message to the terminal under the condition that an effective strategy can not be provided for the terminal, wherein the rejection request message carries a reason value for rejecting the strategy request, and the reason value for rejecting the strategy request is used for indicating that the terminal does not repeatedly apply the same strategy.

9. A policy coordination device, applied to a terminal, the device comprising:

a message receiving module, configured to receive a rejection request message from the PCF, where the rejection request message is sent by the PCF when an effective policy cannot be provided for the terminal, and the rejection request message carries a cause value for rejecting a policy request;

10. An electronic device, comprising:

A memory for storing instructions;

A processor for invoking instructions stored in said memory to implement the policy coordination method of any of claims 1-7.

11. A computer readable storage medium having stored thereon computer instructions, which when executed by a processor implement the policy coordination method of any of claims 1-7.