Method and apparatus for establishing policy association, terminal and network side device

Abstract

The application discloses a policy association establishment method and device, a terminal and a network side equipment, and belongs to the technical field of communication. The policy association establishment method comprises the following steps: a first network side equipment sends a first request message to a second network side equipment, wherein the first request message is used for indicating that the first network equipment requests to establish a policy association of a remote terminal with the second network equipment; the first request message comprises identification information of the remote terminal; the first network side equipment is a core network equipment serving a relay terminal; the second network side equipment is a core network equipment serving the remote terminal; and the first network side equipment receives a response message sent by the second network side equipment, wherein the response message is used for indicating that the second network side equipment determines to establish the policy association of the remote terminal with the first network side equipment according to the identification information. Through the application, the problem that the remote terminal cannot acquire policy parameters through a control plane in a scene without N3IWF in the prior art is solved.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a method and apparatus for establishing policy association, a terminal and network-side equipment. Background Technology

[0002] For Layer 3 relay communication, in scenarios without Non-3GPP InterWorking Function (N3IWF), the remote UE does not have a control plane with its own core network, making it impossible to obtain the remote UE's policy parameters through the control plane. Summary of the Invention

[0003] This application provides a method and apparatus for establishing policy associations, as well as a terminal and network-side device, which can solve the problem in the prior art that remote terminals cannot obtain policy parameters through the control plane in scenarios without N3IWF.

[0004] In a first aspect, a method for establishing a policy association is provided, comprising: a first network-side device sending a first request message to a second network-side device, wherein the first request message is used to instruct the first network device to request to establish a policy association of a remote terminal with the second network device; the first request message includes identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; the first network-side device receiving a response message sent by the second network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association of the remote terminal with the first network-side device.

[0005] Secondly, a method for establishing a policy association is provided, comprising: a second network-side device receiving a first request message sent by a first network-side device; wherein the first request message is used to instruct the first network device to request to establish a policy association of a remote terminal with the second network device; the first request message carries identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; the second network-side device sends a response message to the first network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association of the remote terminal with the first network-side device.

[0006] Thirdly, a method for updating or configuring policy parameters is provided, comprising: a relay terminal receiving a configuration update command sent by a first network-side device, wherein the configuration update command carries policy parameters of a remote terminal; and the relay terminal sending the policy parameters to the remote terminal as policy parameters of the remote terminal.

[0007] Fourthly, a method for updating policy parameters is provided, characterized in that it includes: a remote terminal receiving policy parameters sent by a relay terminal, wherein the policy parameters are used as policy parameters of the remote terminal.

[0008] Fifthly, a policy association establishment apparatus is provided, applied to a first network-side device, comprising: a first sending module, configured to send a first request message to a second network-side device, wherein the first request message is configured to instruct the first network device to request to establish a policy association of a remote terminal with the second network device; the first request message includes identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; and a first receiving module, configured to receive a response message sent by the second network-side device, wherein the response message is configured to instruct the second network-side device to determine, based on the identification information, to establish a policy association of the remote terminal with the first network-side device.

[0009] A sixth aspect provides a policy association establishment apparatus applied to a second network-side device, comprising: a fifth receiving module, configured to receive a first request message sent by a first network-side device; wherein the first request message is configured to instruct the first network device to request to establish a policy association of a remote terminal with the second network device; the first request message carries identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; and a fifth sending module, configured to send a response message to the first network-side device, wherein the response message is configured to instruct the second network-side device to determine, based on the identification information, to establish a policy association of the remote terminal with the first network-side device.

[0010] In a seventh aspect, a policy parameter updating or configuration apparatus is provided, applied to a relay terminal, comprising: a seventh receiving module, configured to receive a configuration update command sent by a first network-side device, wherein the configuration update command carries policy parameters of a remote terminal; and an eighth sending module, configured to send the policy parameters to the remote terminal to update the policy parameters that are local to the remote terminal.

[0011] In an eighth aspect, a policy parameter updating device is provided, applied to a remote terminal, comprising: an eighth receiving module, configured to receive policy parameters sent by a relay terminal, wherein the policy parameters are used to update policy parameters that are local to the remote terminal.

[0012] A ninth aspect provides a network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the first or second aspect.

[0013] In a tenth aspect, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the third or fourth aspect.

[0014] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0015] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run network-side device programs or instructions, such as the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0016] In this embodiment, the core network device (first network-side device) serving the relay terminal sends a request message to the core network device (second network-side device) serving the remote terminal to establish a policy association for the remote terminal. Upon receiving a response message from the second network-side device, the policy association process for the remote terminal is established between the first network-side device and the second network-side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art where the remote terminal cannot obtain policy parameters through the control plane in scenarios without N3IWF. Attached Figure Description

[0017] Figure 1 This diagram illustrates a block diagram of a wireless communication system to which embodiments of this application may be applied.

[0018] Figure 2This is a schematic diagram illustrating the process of establishing a policy association for a terminal during the registration process, according to an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the policy parameter request process initiated by the UE in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the authentication process of a remote UE in a relay scenario according to an embodiment of this application;

[0021] Figure 5 This is a flowchart of the measurement association establishment method in an embodiment of this application. Figure 1 ;

[0022] Figure 6 This is a flowchart of the measurement association establishment method in an embodiment of this application. Figure 2 ;

[0023] Figure 7 This is a flowchart of a method for updating or configuring strategy parameters according to an embodiment of this application;

[0024] Figure 8 This is a flowchart of a method for updating strategy parameters according to an embodiment of this application;

[0025] Figure 9 This is a flowchart illustrating the process of establishing a policy association between the relay AMF and the remote PCF for a remote UE, as described in this application embodiment.

[0026] Figure 10 This is a flowchart illustrating the policy configuration update process of a remote UE on a non-direct link triggered by a remote PCF, according to an embodiment of this application.

[0027] Figure 11 This application embodiment describes a remote UE initiating a policy parameter configuration update process on a non-direct link;

[0028] Figure 12 This is a schematic diagram of the structure of the strategy association establishment device according to an embodiment of this application. Figure 1 ;

[0029] Figure 13 This is a schematic diagram of the structure of the strategy association establishment device according to an embodiment of this application. Figure 2 ;

[0030] Figure 14 This is a schematic diagram of the structure of a strategy parameter updating or configuration device according to an embodiment of this application;

[0031] Figure 15 This is a schematic diagram of the structure of a strategy parameter updating device according to an embodiment of this application;

[0032] Figure 16 This is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0033] Figure 17 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application;

[0034] Figure 18 This is a schematic diagram of the network-side device according to an embodiment of this application. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0038] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment of the application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0039] The relevant terms in this application will be explained and introduced below;

[0040] I. Authorization and Policy Parameters for Remote UE and Relay UE To establish indirect link communication, Remote UE and / or Relay UE need to configure authorization and policy parameters for performing discovery and indirect communication. These authorization and policy parameters include:

[0041] 1) Used to authorize authorization policies for remote UEs or relay UEs;

[0042] 2) Discovery-related authorization and policy parameters used in the discovery phase, such as relay service code;

[0043] 3) Safety-related parameters during the discovery phase;

[0044] 4) QoS parameters during connection establishment.

[0045] II. Terminal Policy Configuration Process:

[0046] like Figure 2 As shown, during the registration process, the Access and Mobility Management Function (AMF) and the Policy Control Function (PCF) establish the policy association for the terminal. In this process, the PCF retrieves information such as the terminal's subscription data to generate a terminal policy (UE policy), and sends the UE policy to the UE through a configuration update process. The UE policy contains authorization and policy parameters for the UE to perform relay communication.

[0047] It should be noted that if it is in a non-roaming scenario, Figure 2 V-PCF is not present in China.

[0048] In non-relay scenarios, the process of a UE initiating a policy parameter request is as follows: Figure 3 As shown, when the validity period of the UE's policy parameters expires or becomes invalid, the UE triggers the policy parameter configuration process requested by the UE. The network generates the corresponding policy parameters based on the UE's subscription data and configures them for the UE.

[0049] In addition, the authentication process of the remote UE in the relay scenario is as follows: Figure 4 As shown, when a remote UE establishes a non-direct communication connection through a relay UE, the core network of the relay UE interacts with the core network of the remote UE. The core network of the remote UE authenticates and authorizes the remote UE, and notifies the core network of the relay UE of the authentication and authorization results. Based on the authentication and authorization results, the core network of the relay UE determines whether the remote UE should establish a non-direct communication link through the relay UE.

[0050] During this process, the core network of the relay UE can obtain the Subscription Permanent Identifier (SUPI) of the remote UE, and retrieve the authorization parameters (subscription information) of the remote UE through the remote UE SUPI.

[0051] The method for establishing strategy associations provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0052] This application provides a method for establishing strategy associations. Figure 5 This is a flowchart of the measurement association establishment method in an embodiment of this application. Figure 1 ,like Figure 5 As shown, the method includes:

[0053] In step S502, the first network-side device sends a first request message to the second network-side device, wherein the first request message is used to instruct the first network device to request to establish a policy association of the remote terminal with the second network device; the first request message includes the identification information of the remote terminal; the first network-side device is a core network device serving the relay terminal; the second network-side device is a core network device serving the remote terminal;

[0054] In step S504, the first network-side device receives a response message sent by the second network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, the policy association of the remote terminal with the first network-side device.

[0055] Through steps S502 and S504 in this embodiment, the core network device (first network-side device) serving the relay terminal sends a request message to the core network device (second network-side device) serving the remote terminal to establish a policy association for the remote terminal. After receiving a response message from the second network-side device, the policy association process for the remote terminal is established between the first network-side device and the second network-side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art that the remote terminal cannot obtain policy parameters through the control plane in scenarios without N3IWF.

[0056] It should be noted that, in the specific application scenario, the first network-side device in this application embodiment can be a relay AMF or a relay PCF, wherein the relay AMF or PCF is an AMF or PCF serving the relay terminal. The second network-side device in the specific application scenario can be a remote PCF, wherein the remote PCF is a PCF serving the remote terminal.

[0057] In an optional embodiment of this application, after the first network-side device receives the response message sent by the second network-side device, the method of this application embodiment may further include:

[0058] Step S506: The first network-side device receives the policy parameters and identification information of the remote terminal sent by the second network-side device;

[0059] In step S508, the first network-side device sends policy parameters and identification information to the relay terminal through a configuration update command.

[0060] Through the above steps S506 and S508, after completing the policy association establishment process with the remote terminal of the second network-side device, the first network-side device can execute the configuration update process of the remote terminal triggered by the second network-side device. In this process, after the first network-side device sends policy parameters and identification information to the relay terminal through a configuration update command, the relay terminal forwards the policy parameters to the remote terminal according to the identification information, thereby completing the configuration update process of the remote terminal triggered by the second network-side device.

[0061] In another optional embodiment of this application, after the first network-side device receives the response message sent by the second network-side device, the method of this application embodiment may further include:

[0062] Step S510: The first network-side device receives a second request message sent by the relay terminal to request the configuration of policy parameters for the remote terminal, wherein the second request message carries the identifier of the remote terminal.

[0063] In step S512, the first network-side device sends a third request message to the second network-side device to request the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal.

[0064] Step S514: The first network-side device receives the policy parameters of the remote terminal sent by the second network-side device;

[0065] In step S516, the first network-side device sends policy parameters to the relay terminal via a configuration update command.

[0066] Through steps S510 to S516 above, after completing the policy association establishment process with the remote terminal of the second network-side device, if the remote terminal finds that the local policy parameters need to be updated or reconfigured, the remote terminal sends a fourth request message to the relay terminal to request the configuration and update of the policy parameters. The fourth request message carries the identifier of the remote terminal. Then, the first network-side device receives the second request message sent by the relay terminal to request the configuration of policy parameters for the remote terminal, as well as subsequent steps S512 to S516. That is to say, the configuration update process of the remote terminal can also be triggered by the remote terminal itself.

[0067] As can be seen, in this embodiment of the application, after the policy association establishment process with the remote terminal of the second network side device is completed, the policy parameter configuration update process of the remote terminal can be triggered by the second network side device or the remote terminal.

[0068] It should be noted that the policy parameters in the embodiments of this application can also be called policies, or policies and authorization parameters, which are the rules or policies that the terminal follows when performing the discovery process, communication establishment process or data forwarding.

[0069] The above Figure 5 The explanation of this application is from the perspective of the first network-side device. The following explanation will focus on the method for establishing policy associations in this application from the perspective of the second network-side device. Figure 6 This is the process flow of establishing strategy associations in the embodiments of this application. Figure 2 ,like Figure 6 As shown, it includes:

[0070] In step S602, the second network-side device receives a first request message sent by the first network-side device; wherein, the first request message is used to instruct the first network device to request to establish a policy association of the remote terminal with the second network device; the first request message carries the identification information of the remote terminal; the first network-side device is a core network device serving the relay terminal; the second network-side device is a core network device serving the remote terminal;

[0071] In step S604, the second network-side device sends a response message to the first network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, the policy association of the remote terminal with the first network-side device.

[0072] Through steps S602 and S604 in this embodiment, the core network device (first network-side device) serving the relay terminal sends a request message to the core network device (second network-side device) serving the remote terminal to establish a policy association for the remote terminal. After receiving a response message from the second network-side device, the policy association process for the remote terminal is established through the first network-side device and the second network-side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art that the remote terminal cannot obtain policy parameters through the control plane in scenarios without N3IWF.

[0073] In an optional embodiment of this application, after the second network-side device sends a response message to the first network-side device, the method steps of this application embodiment may further include:

[0074] In step S606, the second network-side device sends the policy parameters and identification information of the remote terminal to the first network-side device; wherein, the policy parameters and identification information of the remote terminal are used by the first network-side device to perform the configuration update of the policy parameters of the remote device.

[0075] Through step S606 of this embodiment, after completing the policy association establishment process with the remote terminal of the second network-side device, the first network-side device can execute the configuration update process of the remote terminal triggered by the second network-side device. This step S606 corresponds to the step S506 described above.

[0076] In an optional embodiment of this application, after the second network-side device sends a response message to the first network-side device, the method steps of this application embodiment may further include:

[0077] Step S608: The second network-side device receives a third request message sent by the first network-side device to request the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal.

[0078] Step S610: The second network-side device retrieves or generates policy parameters based on the identifier;

[0079] In step S612, the second network-side device responds to the third request from the first network device and sends the policy parameters of the remote terminal to the first network device.

[0080] Steps S608 to S612 correspond to steps S510 to S516. After establishing the policy association with the remote terminal of the second network-side device, if the remote terminal detects that its local policy parameters need updating or reconfiguration, it sends a fourth request message to the relay terminal requesting the configuration and update of the policy parameters. This fourth request message carries the identifier of the remote terminal. Subsequently, the first network-side device receives a second request message from the relay terminal requesting the configuration of policy parameters for the remote terminal, and the second network-side device receives a third request message from the first network-side device requesting the configuration of policy parameters for the remote terminal. These subsequent steps complete the process of the remote terminal triggering the policy parameter configuration update itself.

[0081] The above Figure 5 and Figure 6 The explanations of this application are all from the perspective of network-side devices. The following explanations will be from the perspective of terminal devices.

[0082] This application provides a method for updating or configuring strategy parameters. Figure 7 This is a flowchart of a method for updating or configuring strategy parameters according to an embodiment of this application, such as... Figure 7As shown, the steps of this method include:

[0083] In step S702, the relay terminal receives a configuration update command sent by the first network-side device, wherein the configuration update command carries the policy parameters of the remote terminal.

[0084] In step S704, the relay terminal sends policy parameters to the remote terminal to update the policy parameters that are local to the remote terminal.

[0085] It should be noted that steps S702 and S704 above are executed after the policy association establishment process with the remote terminal of the second network-side device is completed. That is, after receiving the configuration update command sent by the first network-side device, the relay terminal can send policy parameters to the remote terminal to update the policy parameters used locally on the remote terminal, thereby completing the policy parameter update and configuration.

[0086] In an optional embodiment of this application, before the relay terminal receives the configuration update command sent by the first network-side device, the method of this application may further include:

[0087] In step S706, the relay terminal sends a second request message to the first network-side device to request the configuration of policy parameters for the remote terminal, wherein the second request message includes the identifier of the remote terminal.

[0088] In the actual process, step S706 occurs because the remote terminal retrieves the local policy parameters and needs to be updated. The remote terminal then sends a fourth request message to the relay terminal to request the configuration and update of the policy parameters. The relay terminal then executes step S706. In other words, this process is triggered by the remote terminal itself to update the policy parameters.

[0089] The above Figure 7 This explanation is from the perspective of the relay terminal. The following explanation will focus on the method for updating the policy parameters of this application from the perspective of the remote terminal. Figure 8 This is a flowchart of a strategy parameter update method according to an embodiment of this application, as follows: Figure 8 As shown, it includes:

[0090] In step S802, the remote terminal receives policy parameters sent by the relay terminal, wherein the policy parameters are used to update the policy parameters that are local to the remote terminal.

[0091] Through the above step S802, for the remote terminal, the policy parameters to be updated are sent through the relay terminal during the policy parameter update process. This includes the policy parameter update process triggered by the second network side device, as well as the policy parameter update process triggered by the remote terminal itself.

[0092] In this embodiment of the application, the method by which the remote terminal receives the policy parameters sent by the relay terminal in step S802 above may further include:

[0093] Step S802-11: If the remote terminal finds that the local policy parameters need to be updated or reconfigured, the remote terminal sends a fourth request message to the relay terminal to request the configuration and update of the policy parameters. The fourth request message carries the identifier of the remote terminal.

[0094] Step S802-12: The remote terminal receives the policy parameters sent by the relay device; wherein the policy parameters are obtained by the relay terminal from the second network side device through the first network side device.

[0095] The above steps S802-11 and S802-12 are the process of the remote terminal itself triggering the policy parameter update.

[0096] The entire process of this application will be illustrated below with reference to a specific embodiment of the present application. In this specific embodiment, the first network-side device is a relay AMF or a relay PCF, and the second network-side device is a remote PCF. Detailed Implementation Method 1

[0098] This specific implementation provides a policy association establishment process for relay AMF / relay PCF and remote PCF to establish a remote UE, such as... Figure 9 As shown, the steps of this establishment process include:

[0099] Step S902, remote terminal discovery;

[0100] Step S904: The remote terminal sends a request to establish a non-direct link connection;

[0101] Step S906, authentication and authorization process of the remote terminal;

[0102] In this process, the relay UE's core network has completed authentication and authorization for the remote UE through the remote UE's core network, and the relay AMF / relay PCF obtains the remote UE's SUPI.

[0103] Step S908: The remote terminal receives the acceptance of the establishment of a non-direct link connection;

[0104] Step S910: The relay AMF / relay PCF sends a policy creation request for the remote UE to the remote PCF;

[0105] In step S912, the remote PCF sends a policy creation response to the relay AMF. Detailed Implementation Method 2

[0107] This specific implementation is based on Specific Implementation 1; in this specific implementation, after the network side detects that the policy of the Remote UE has been updated, the Remote PCF triggers the policy configuration update process of the remote UE on the non-direct link, and provides the updated policy parameters to the remote UE through the core network of the relay UE, such as... Figure 10 As shown, the method steps of this process include:

[0108] In step S1002, the remote PCF triggers the configuration update process of the remote UE and sends the policy parameters of the remote UE to the relay AMF / Relay PCF.

[0109] Step S1004: After receiving the policy parameters from the remote UE, the Relay AMF / Relay PCF initiates the UE configuration update process. During the configuration update process, the Relay AMF / Relay PCF sends the remote UE policy parameters to the relay UE.

[0110] Step S1006: After receiving the policy parameters for the remote UE, the Relay UE sends the policy parameters of the remote UE to the remote UE.

[0111] Step S1008: The remote UE sends a configuration update completion signaling to the relay UE;

[0112] In step S1010, the Relay UE sends a configuration update completion signaling to the Relay AMF / Relay PCF.

[0113] This specific implementation method 2 is a policy parameter update process triggered by remote PCF, through which... Figure 10 The methods and steps described herein enable the configuration and updating of Remote UE policies and parameters. Detailed Implementation Method 3

[0115] This specific implementation is based on Specific Implementation 1; in this specific implementation, the remote UE initiates a policy parameter configuration update process on the non-direct link. The remote UE requests the relay UE's core network to retrieve the remote UE's policy parameters and provide them to the remote UE, such as... Figure 11As shown, the steps of this method include:

[0116] In step S1102, the remote UE establishes a Layer 3 trunk link through the relay UE;

[0117] Step S1104: When the remote UE detects that its own policy parameters need to be updated, the remote UE sends a remote UE policy update request to the relay UE.

[0118] The request is sent to the relay UE via PC5-S signaling, and the request information includes the identifier of the remote UE, such as the remote UE's SUCI, SUPI, GUTI, etc.

[0119] In step S1106, after receiving the policy update request from the remote UE, the relay UE triggers the policy configuration process. The relay UE sends a policy configuration request message to the relay AMF / relay PCF and instructs the request message to be used to configure the policy parameters of the remote UE; wherein, the request message contains the remote UE identifier.

[0120] Step S1108: The relay AMF / relay PCF sends a policy control update request to the remote PCF to request the remote PCF to configure the policy parameters of the remote UE. The request message contains the remote UE identifier.

[0121] In step S1110, after receiving the policy control update request sent by relay AMF / relay PCF, remote PCF retrieves and determines the policy parameters of remote UE, triggers the configuration update process of remote UE, and sends the policy parameters of remote UE to remote UE.

[0122] Among them, step S1110 is related to the above. Figure 10 Steps S1002 to S1010 are similar.

[0123] This specific implementation method 3 is a policy parameter update process triggered by the remote UE itself, that is, the policy parameters can be updated according to its own needs.

[0124] It should be noted that the strategy association establishment method provided in this application embodiment can be executed by a strategy association establishment device and a strategy parameter update or configuration method. The execution subject can be a strategy parameter update or configuration device, or a control module in the strategy association establishment device for executing the strategy association establishment method, or a control module in the strategy parameter update or configuration device for executing the strategy parameter update or configuration method.

[0125] This application provides a policy association establishment apparatus, which is applied to a first network-side device. Figure 12 This is a schematic diagram of the structure of the strategy association establishment device according to an embodiment of this application. Figure 1 ,like Figure 12 As shown, the device includes:

[0126] The first sending module 122 is used to send a first request message to the second network-side device, wherein the first request message is used to instruct the first network device to request to establish a policy association of the remote terminal with the second network device; the first request message includes the identification information of the remote terminal; the first network-side device is a core network device serving the relay terminal; the second network-side device is a core network device serving the remote terminal;

[0127] The first receiving module 124 is used to receive a response message sent by the second network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, the policy association for establishing a remote terminal with the first network-side device.

[0128] The apparatus of this application embodiment establishes a policy association for a remote terminal by sending a request message to the core network device (second network side device) serving the remote terminal to establish a policy association for the remote terminal. Upon receiving a response message from the second network side device, the apparatus establishes a policy association process for the remote terminal through the first network side device and the second network side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art that the remote terminal cannot obtain policy parameters through the control plane in scenarios without N3IWF.

[0129] Optionally, the apparatus in this application embodiment may further include: a second receiving module, configured to receive policy parameters and identification information of the remote terminal sent by the second network-side device after receiving a response message sent by the second network-side device; and a second sending module, configured to send policy parameters and identification information to the relay terminal through a configuration update command.

[0130] Optionally, the apparatus in this application embodiment may further include: a third receiving module, configured to receive, after receiving a response message sent by a second network-side device, a second request message sent by a relay terminal requesting the configuration of policy parameters for a remote terminal, wherein the second request message carries an identifier of the remote terminal; a third sending module, configured to send a third request message to the second network-side device requesting the configuration of policy parameters for a remote terminal, wherein the third request message carries an identifier of the remote terminal; a fourth receiving module, configured to receive policy parameters of the remote terminal sent by the second network-side device; and a fourth sending module, configured to send the policy parameters to the relay terminal via a configuration update command.

[0131] This application provides a policy association establishment apparatus, which is applied to a second network-side device. Figure 13 This is a schematic diagram of the structure of the strategy association establishment device according to an embodiment of this application. Figure 2 ,like Figure 13 As shown, the device includes:

[0132] The fifth receiving module 132 is used to receive a first request message sent by the first network-side device; wherein, the first request message is used to instruct the first network device to request to establish a policy association of the remote terminal with the second network device; the first request message carries the identification information of the remote terminal; the first network-side device is a core network device serving the relay terminal; the second network-side device is a core network device serving the remote terminal;

[0133] The fifth sending module 134 is used to send a response message to the first network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, the policy association for establishing a remote terminal with the first network-side device.

[0134] The apparatus implemented in this application, applied to a second network-side device, receives a request message from a core network device (first network-side device) serving a relay terminal for establishing a policy association for a remote terminal. Upon receiving a response message from the second network-side device, a policy association process for the remote terminal is established between the first network-side device and the second network-side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art where the remote terminal cannot obtain policy parameters through the control plane in scenarios without N3IWF.

[0135] Optionally, the apparatus in this application embodiment may further include: a sixth sending module, configured to send policy parameters and identification information of the remote terminal to the first network-side device after sending a response message to the first network-side device; wherein the policy parameters and identification information of the remote terminal are used by the first network-side device to perform configuration updates of the policy parameters of the remote device.

[0136] Optionally, the apparatus in this application embodiment may further include: a sixth receiving module, configured to receive a third request message sent by the first network-side device after sending a response message to the first network-side device, requesting the configuration of policy parameters for a remote terminal, wherein the third request message carries an identifier of the remote terminal; a processing module, configured to retrieve or generate policy parameters based on the identifier; and a seventh sending module, configured to respond to the third request from the first network device and send the policy parameters of the remote terminal to the first network device.

[0137] This application also provides a device for updating or configuring policy parameters, which is applied to a relay terminal. Figure 14 This is a schematic diagram of the structure of a strategy parameter updating or configuration device according to an embodiment of this application, such as... Figure 14 As shown, the device includes:

[0138] The seventh receiving module 142 is used to receive a configuration update command sent by the first network-side device, wherein the configuration update command carries the policy parameters of the remote terminal;

[0139] The eighth sending module 144 is used to send policy parameters to the remote terminal to update the policy parameters that are local to the remote terminal.

[0140] Optionally, the apparatus in this application embodiment may further include: a ninth sending module, configured to send a second request message to the first network-side device for requesting to configure policy parameters for a remote terminal before receiving a configuration update command sent by the first network-side device, wherein the second request message includes an identifier of the remote terminal.

[0141] This application also provides a policy parameter updating device, which is applied to a remote terminal. Figure 15 This is a schematic diagram of the structure of the strategy parameter updating device according to an embodiment of this application, as shown below. Figure 15 As shown, the device includes:

[0142] The eighth receiving module 152 is used to receive policy parameters sent by the relay terminal, wherein the policy parameters are used to update the policy parameters that are local to the remote terminal.

[0143] Optionally, the eighth receiving module in this application embodiment may include: a sending unit, configured to send a fourth request message to the relay terminal to request the configuration and update of the policy parameters when it is found that the local policy parameters need to be updated or reconfigured, wherein the fourth request message carries the identifier of the remote terminal; and a receiving unit, configured to receive the policy parameters sent by the relay device, wherein the policy parameters are obtained by the relay terminal from the second network side device through the first network side device.

[0144] The policy association device and the policy parameter update or configuration device in this application embodiment can be a device, or it can be a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminal 11 listed above, and a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not make specific limitations.

[0145] The policy association device and the policy parameter update or configuration device in the embodiments of this application can be devices with an operating system. The operating system can be Android, iOS, or other possible operating systems, and this application embodiment does not specifically limit them.

[0146] The strategy association device and the strategy parameter update or configuration device provided in this application embodiment can achieve... Figures 5 to 8 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0147] Optional, such as Figure 16 As shown, this application embodiment also provides a communication device 1600, including a processor 1601, a memory 1602, and a program or instructions stored in the memory 1602 and executable on the processor 1601. For example, when the communication device 1600 is a terminal, the program or instructions, when executed by the processor 1601, implement the various processes of the above-mentioned policy association method or policy parameter update or configuration method embodiment, and achieve the same technical effect. When the communication device 1600 is a network-side device, the program or instructions, when executed by the processor 1601, implement the various processes of the above-mentioned policy association method or policy parameter update or configuration method embodiment, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0148] Figure 17 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0149] The terminal 100 includes, but is not limited to, components such as: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

[0150] Those skilled in the art will understand that the terminal 100 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 110 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 17 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0151] It should be understood that, in this embodiment, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0152] In this embodiment, the radio frequency unit 101 receives downlink data from the network-side device and processes it for the processor 110; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0153] The memory 109 can be used to store software programs or instructions and various data. The memory 109 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 109 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0154] Processor 110 may include one or more processing units; optionally, processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 110.

[0155] The radio frequency unit 101 is used to send a first request message to the second network-side device. The first request message is used to instruct the first network device to request to establish a policy association of the remote terminal with the second network device. The first request message includes the identification information of the remote terminal. The first network-side device is a core network device serving the relay terminal. The second network-side device is a core network device serving the remote terminal.

[0156] The radio frequency unit 101 is used to receive a response message sent by the second network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association between the remote terminal and the first network-side device.

[0157] Through the terminal of this application, the core network device (first network-side device) serving the relay terminal sends a request message to the core network device (second network-side device) serving the remote terminal to establish a policy association for the remote terminal. After receiving a response message from the second network-side device, the policy association process of the remote terminal is established through the first network-side device and the second network-side device. Based on this policy association process, the remote terminal can obtain the corresponding policy parameters, thereby solving the problem in the prior art that the remote terminal cannot obtain policy parameters through the control plane in the N3IWF scenario.

[0158] Specifically, embodiments of this application also provide a network-side device. For example... Figure 18 As shown, the network device 1800 includes an antenna 181, a radio frequency (RF) device 182, and a baseband device 183. The antenna 181 is connected to the RF device 182. In the uplink direction, the RF device 182 receives information through the antenna 181 and transmits the received information to the baseband device 183 for processing. In the downlink direction, the baseband device 183 processes the information to be transmitted and sends it to the RF device 182. The RF device 182 processes the received information and transmits it through the antenna 181.

[0159] The aforementioned frequency band processing device can be located in the baseband device 183. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 183, which includes a processor 184 and a memory 185.

[0160] Baseband device 183 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 18 As shown, one of the chips, for example, is a processor 184, which is connected to a memory 185 to call the program in the memory 185 and execute the network device operations shown in the above method embodiment.

[0161] The baseband device 183 may also include a network interface 186 for exchanging information with the radio frequency device 182, such as a common public radio interface (CPRI).

[0162] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 185 and executable on processor 184, wherein processor 184 calls the instructions or programs in memory 185 to execute... Figure 12 Alternatively, the methods executed by each module shown in Figure 13 can achieve the same technical effect. To avoid repetition, they will not be described in detail here.

[0163] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described policy association method or policy parameter update or configuration method embodiments, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0164] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0165] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-mentioned policy association method, or policy parameter update or configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0166] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0167] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0168] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0169] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for establishing strategy associations, characterized in that, include: A first network-side device sends a first request message to a second network-side device, wherein the first request message is used to instruct the first network-side device to request to establish a policy association for a remote terminal with the second network-side device; the first request message includes the identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks; The first network-side device receives a response message sent by the second network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association between the second network-side device and the first network-side device for the remote terminal.

2. The method according to claim 1, characterized in that, After the first network-side device receives the response message sent by the second network-side device, the method further includes: The first network-side device receives the policy parameters and identification information of the remote terminal sent by the second network-side device; The first network-side device sends the policy parameters and the identification information to the relay terminal via a configuration update command.

3. The method according to claim 1, characterized in that, After the first network-side device receives the response message sent by the second network-side device, the method further includes: The first network-side device receives a second request message sent by the relay terminal to request the configuration of policy parameters for the remote terminal, wherein the second request message carries the identifier of the remote terminal; The first network-side device sends a third request message to the second network-side device to request the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal; The first network-side device receives the policy parameters of the remote terminal sent by the second network-side device; The first network-side device sends the policy parameters to the relay terminal via a configuration update command.

4. A method for establishing strategy associations, characterized in that, include: The second network-side device receives a first request message sent by the first network-side device; wherein the first request message is used to instruct the first network-side device to request to establish a policy association of a remote terminal with the second network-side device; the first request message carries the identification information of the remote terminal; the first network-side device is a core network device serving the relay terminal; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks; The second network-side device sends a response message to the first network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association between the second network-side device and the first network-side device for the remote terminal.

5. The method according to claim 4, characterized in that, After the second network-side device sends a response message to the first network-side device, the method further includes: The second network-side device sends the policy parameters and identification information of the remote terminal to the first network-side device; wherein, the policy parameters and identification information of the remote terminal are used by the first network-side device to perform configuration updates of the policy parameters of the remote terminal.

6. The method according to claim 4, characterized in that, After the second network-side device sends a response message to the first network-side device, the method further includes: The second network-side device receives a third request message sent by the first network-side device to request the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal; The second network-side device retrieves or generates policy parameters based on the identifier; The second network-side device responds to the third request message from the first network-side device and sends the policy parameters of the remote terminal to the first network-side device.

7. A method for updating or configuring strategy parameters, characterized in that, include: The relay terminal receives a configuration update command sent by a first network-side device, wherein the configuration update command carries policy parameters of the remote terminal; the first network-side device is a core network device serving the relay terminal; the policy parameters are obtained by the relay terminal from a second network-side device through the first network-side device; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks. The relay terminal sends the policy parameters to the remote terminal as the policy parameters of the remote terminal.

8. The method according to claim 7, characterized in that, Before the relay terminal receives the configuration update command sent by the first network-side device, the method further includes: The relay terminal sends a second request message to the first network-side device to request the configuration of policy parameters for the remote terminal, wherein the second request message includes the identifier of the remote terminal.

9. A method for updating strategy parameters, characterized in that, include: The remote terminal receives policy parameters sent by the relay terminal, wherein the policy parameters are used as policy parameters of the remote terminal; the policy parameters are sent to the relay terminal by the first network-side device, and the policy parameters are carried in the configuration update command sent to the relay terminal by the first network-side device, wherein the first network-side device is the core network device serving the relay terminal; The policy parameters are obtained by the relay terminal requesting the second network side device through the first network side device; the second network side device is a core network device serving the remote terminal; the first network side device and the second network side device are network side devices in different core networks.

10. The method according to claim 9, characterized in that, The remote terminal receives policy parameters sent by the relay terminal, including: If the remote terminal finds that the local policy parameters need to be updated or reconfigured, the remote terminal sends a fourth request message to the relay terminal to request the configuration and update of the policy parameters, wherein the fourth request message carries the identifier of the remote terminal. The remote terminal receives the policy parameters sent by the relay device.

11. A policy association establishment apparatus, applied to a first network-side device, characterized in that, include: A first sending module is configured to send a first request message to a second network-side device, wherein the first request message instructs the first network-side device to request the establishment of a policy association for a remote terminal with the second network-side device; the first request message includes the identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks. The first receiving module is configured to receive a response message sent by the second network-side device, wherein the response message is configured to instruct the second network-side device to determine, based on the identification information, to establish a policy association between the remote terminal and the first network-side device.

12. The apparatus according to claim 11, characterized in that, The device further includes: The second receiving module is used to receive the policy parameters and identification information of the remote terminal sent by the second network-side device after receiving the response message sent by the second network-side device; The second sending module is used to send the policy parameters and the identification information to the relay terminal through a configuration update command.

13. The apparatus according to claim 11, characterized in that, The device further includes: The third receiving module is configured to receive, after receiving the response message sent by the second network-side device, a second request message sent by the relay terminal requesting to configure policy parameters for the remote terminal, wherein the second request message carries the identifier of the remote terminal. The third sending module is used to send a third request message to the second network-side device to request the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal. The fourth receiving module is used to receive the policy parameters of the remote terminal sent by the second network-side device; The fourth sending module is used to send the policy parameters to the relay terminal via a configuration update command.

14. A policy association establishment apparatus, applied to a second network-side device, characterized in that, include: The fifth receiving module is configured to receive a first request message sent by a first network-side device; wherein the first request message is used to instruct the first network-side device to request to establish a policy association of a remote terminal with a second network-side device; the first request message carries the identification information of the remote terminal; the first network-side device is a core network device serving a relay terminal; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks; The fifth sending module is used to send a response message to the first network-side device, wherein the response message is used to instruct the second network-side device to determine, based on the identification information, to establish a policy association between the remote terminal and the first network-side device.

15. The apparatus according to claim 14, characterized in that, The device further includes: The sixth sending module is used to send the policy parameters and identification information of the remote terminal to the first network-side device after sending a response message to the first network-side device; wherein the policy parameters and identification information of the remote terminal are used by the first network-side device to perform the configuration update of the policy parameters of the remote device.

16. The apparatus according to claim 14, characterized in that, The device further includes: The sixth receiving module is configured to receive, after sending a response message to the first network-side device, a third request message sent by the first network-side device requesting the configuration of policy parameters for the remote terminal, wherein the third request message carries the identifier of the remote terminal. The processing module is used to retrieve or generate strategy parameters based on the identifier; The seventh sending module is used to respond to the third request message from the first network device and send the policy parameters of the remote terminal to the first network device.

17. A device for updating or configuring policy parameters, applied to a relay terminal, characterized in that, include: The seventh receiving module is used to receive a configuration update command sent by a first network-side device, wherein the configuration update command carries policy parameters of the remote terminal, the first network-side device is a core network device serving the relay terminal; the policy parameters are obtained by the relay terminal from a second network-side device through the first network-side device; the second network-side device is a core network device serving the remote terminal; the first network-side device and the second network-side device are network-side devices in different core networks; The eighth sending module is used to send the policy parameters to the remote terminal to update the policy parameters that are local to the remote terminal.

18. The apparatus according to claim 17, characterized in that, The device further includes: The ninth sending module is configured to send a second request message to the first network-side device before receiving the configuration update command sent by the first network-side device, requesting to configure policy parameters for the remote terminal, wherein the second request message includes the identifier of the remote terminal.

19. A policy parameter updating device, applied to a remote terminal, characterized in that, include: The eighth receiving module is used to receive policy parameters sent by the relay terminal, wherein the policy parameters are used to update the policy parameters local to the remote terminal, the policy parameters are sent to the relay terminal by the first network-side device, and the policy parameters are carried in the configuration update command sent to the relay terminal by the first network-side device, the first network-side device being the core network device serving the relay terminal; The policy parameters are obtained by the relay terminal requesting the second network side device through the first network side device; the second network side device is a core network device serving the remote terminal; the first network side device and the second network side device are network side devices in different core networks.

20. The apparatus according to claim 19, characterized in that, The eighth receiving module includes: The sending unit is configured to send a fourth request message to the relay terminal to request the configuration and update of the policy parameters when it is found that the local policy parameters need to be updated or reconfigured. The fourth request message carries the identifier of the remote terminal. A receiving unit is used to receive the policy parameters sent by the relay device.

21. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method for establishing a policy association as described in any one of claims 1 to 3, or the steps of the method for establishing a policy association as described in any one of claims 4 to 6.

22. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the strategy parameter update or configuration method as described in claim 7 or 8, or the steps of the strategy parameter update method as described in claim 9 or 10.

23. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method for establishing a policy association as described in any one of claims 1 to 3, or the steps of the method for establishing a policy association as described in any one of claims 4 to 6, or the steps of the method for updating or configuring policy parameters as described in claim 7 or 8, or the steps of the method for updating policy parameters as described in claim 9 or 10.

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