WO2023142887A1

WO2023142887A1 - Communication method and communication apparatus

Info

Publication number: WO2023142887A1
Application number: PCT/CN2022/143948
Authority: WO
Inventors: 李文正; 朱强华; 吴问付
Original assignee: 华为技术有限公司
Priority date: 2022-01-28
Filing date: 2022-12-30
Publication date: 2023-08-03
Also published as: CN116567587A

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: a first device receives a first request from a second device, the first request being used for requesting a network use rule of a first service, the first request carrying service requirement information of the first service, and the first service being a service provided for the second device; the first device determines, on the basis of the service requirement information, the network use rule corresponding to the first service; and the first device sends the network use rule corresponding to the first service to the second device. By means of the solution in the present application, the network use rule of the first service can be automatically negotiated, the flexibility is higher, and the reliability of subsequent communication is improved.

Description

Communication method and communication device

This application claims the priority of the Chinese patent application with the application number 202210108980.1 and the title of the invention "communication method and communication device" submitted to the China Patent Office on January 28, 2022, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of communication, and in particular, to a communication method and a communication device.

Background technique

With the rapid development of communication technology, the communication network is evolving to a multimedia network based on Internet Protocol (IP). Operators continue to develop various communication services based on IP networks, such as multimedia calls, file downloads, web page browsing, and video-on-demand. At present, whether it is a public land mobile network (PLMN) or a non-public network (non-public network, NPN), 5GC (that is, 5G core network) does not have the ability to communicate with third-party service servers (such as application functions) function, AF)) to perform automatic negotiation of network usage rules, but to manually change the PCC rules of the current protocol data unit (protocol data unit, PDU) session, so as to update the routing rules of the user plane, such as service quality ( quality of service, QoS) rules, etc., but this manual setting method has poor flexibility and low applicability.

Contents of the invention

The present application provides a communication method and a communication device, which are more flexible and help to improve the reliability of subsequent communication.

In a first aspect, the present application provides a communication method, which includes:

The first device receives a first request from the second device, the first request is used to request the network usage rules of the first service, the first request carries service requirement information of the first service, and the first service services provided for the second device;

The first device determines a network usage rule corresponding to the first service based on the service requirement information;

The first device sends the network usage rule corresponding to the first service to the second device.

In this application, the first device may be a core network element, such as NF/PCF/AMF/SMF/UDM, etc., and the second device may be a server corresponding to a service provider, or NF, etc., without limitation here. Specifically, the second device sends the first request to the first device, so as to initiate a network rule negotiation process between the second device and the first device regarding the use of the local network where the first device is located by the first service. Wherein, when the first device determines to accept the first request of the second device, and determines to use the local network to provide the network usage rules of the first service, the first device transmits the network usage rules to the second device, so that the first The automatic negotiation of the network usage rules of a service has higher flexibility and is conducive to improving the reliability of subsequent communication.

In a possible implementation, the determining the network usage rule corresponding to the first service based on the service requirement information includes:

The first device determines the network usage rule corresponding to the first service based on the service requirement information and the local network usage rule.

In this implementation manner, the first device may determine the network usage rule corresponding to the first service based on the service requirement information and the local network usage rule.

In a possible implementation, the business requirement information includes one or more of the following information:

The identification information of the first service, the terminal device where the request for the first service becomes effective, the time when the request for the first service becomes effective, the place where the request for the first service becomes effective, and the requested quality of service (QoS) for the first service , the requested resource of the first service;

The network usage rules corresponding to the first service include one or more of the following:

The identification information of the first service, the effective terminal device of the first service, the effective time of the first service, the effective place of the first service, the QoS information of the first service, the first Resource information for your business.

In a possible implementation, the service requirement information includes a valid terminal device requesting the first service; and determining the network usage rule corresponding to the first service based on the service requirement information includes:

The first device acquires the subscription information associated with the requesting valid terminal device;

The first device determines the network usage rule corresponding to the first service based on the service requirement information and the subscription information associated with the terminal device requesting validation.

In this implementation mode, when the service requirement information includes the valid terminal device of the first service, the first device considers that the first service request is provided for some UEs, so the first device can initiate the corresponding terminal device of the valid terminal device of the first service The subscription information is inquired, and then the network usage rules corresponding to the first service are determined based on the service requirement information and the subscription information associated with the request valid terminal device.

In a possible implementation, the subscription information associated with the terminal device requesting validation includes at least one of the following subscription information:

Data network name DNN subscription information, slice subscription information, and subscription information of the first service.

In a possible implementation, the subscription information of the first service includes at least one of the following information:

Identification information of the first service, effective location information of the first service, effective time information of the first service, and QoS information of the first service.

In a possible implementation, the resource information of the first service includes one or more of the following: bandwidth resource, maximum number of users, and network load threshold.

In a possible implementation, the method also includes:

The first device sends the network usage rule corresponding to the first service to the third device.

In this implementation manner, the third device may be a related network element, for example, the third device may be another related core network network element or an access network device. Specifically, the first device sends the network usage rule corresponding to the first service to the third device, so that the subsequent third device can reserve resources for the first service according to the network usage rule, which is beneficial to improve communication reliability. For example, other core network elements can reserve corresponding bandwidth and the maximum number of users that can be handled for the first service within the scope of effective time and effective location based on network usage rules, and access network devices can use network usage rules based on , within the scope of effective time and effective location, resources such as the number of registered users, the number of PDU sessions, and the number of QoS flows are reserved for the first service.

In a possible implementation, the third device is an access network device; the sending the network usage rule corresponding to the first service to the third device includes:

The first device sends an N2 message to the third device, where the N2 message includes a network usage rule corresponding to the first service.

In a possible implementation, the first device is an access and mobility management function AMF; the method further includes:

The first device acquires a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The first device determines whether to accept the registration request of the terminal device according to a network usage rule corresponding to the first service.

In this application, the first device is an AMF, and when the UE initiates a network registration process directed to the first service in the local network where the AMF is located, the AMF can perform the registration process according to the acquired network usage rules of the first service The control, for example, determines whether to accept the registration request of the terminal device according to the network usage rules corresponding to the first service.

In a possible implementation, the method also includes:

The first device accepts the registration request of the terminal device;

The first device determines whether to deregister the terminal device according to the network use rule corresponding to the first service.

In this implementation, in the registration process, the AMF can determine the registration restrictions of the first service (such as effective time, effective location, etc.) by obtaining the network usage rules of the first service, and then the AMF can registration limit, decide whether to accept the registration request. Wherein, when the AMF determines to accept the registration request, and after the terminal device is successfully registered, the AMF may also decide to maintain or release the registration status of the UE according to the acquired network usage rules.

In a possible implementation, the first device is a session management function SMF; the method further includes:

The first device acquires a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

The first device determines whether to accept the PDU session establishment request of the terminal device according to a network usage rule corresponding to the first service.

In this implementation, the first device is an SMF, where when the UE initiates a PDU session establishment process pointing to the first service on the local network where the SMF is located, the AMF can The establishment of the session is controlled. For example, in the PDU session establishment process, the SMF can determine the PDU session restriction (such as effective time, effective location, slice, DNN or QoS information, etc.), therefore, the SMF can decide whether to accept the PDU session establishment request according to the PDU session limit of the target service.

In a possible implementation, the method also includes:

The first device accepts the PDU session establishment request of the terminal device, and establishes a PDU session according to the PDU session establishment request;

The first device determines whether to deactivate the PDU session according to the network usage rule.

In this implementation mode, when the SMF accepts the PDU session establishment request of the terminal device and establishes a PDU session according to the PDU session establishment request, the SMF may also decide to hold or release the PDU session according to the obtained network usage rules. UE's PDU session.

In a possible implementation, the method also includes:

The first device sends the network usage rule corresponding to the first service to the terminal device.

In this implementation manner, the first device sends the network usage rule corresponding to the first service to the terminal device, so that the terminal device can follow the obtained network usage rule only within the limits of the network usage rule (such as The registration based on the first service and the establishment of the PDU session pointing to the first service are initiated within the effective time and effective location). Wherein, when the first device is an AMF, after the registration is successful, the AMF may send the obtained network usage rules of the first service to the UE through a registration acceptance message. For another example, when the first device is an SMF, after the PDU session is established successfully, the SMF may send the obtained network usage rules of the first service to the UE through a PDU session establishment message.

In a second aspect, the present application provides a communication method, which includes:

The second device sends a first request to the first device, the first request is used to request a network usage rule of the first service, the first request carries service requirement information of the first service, and the service requirement information is used For determining a network usage rule corresponding to the first service, the first service is a service provided by the second device;

The second device receives the network usage rule corresponding to the first service from the first device.

Based on the communication method provided by the second aspect, its beneficial effects can refer to the beneficial effects of the first aspect above, and the repetition will not be repeated.

In a third aspect, the present application provides a communication method, which includes:

The third device receives a network usage rule corresponding to the first service from the first device;

The third device reserves network resources for the first service based on the network usage rule corresponding to the first service.

In a possible implementation, the third device is an access network device; the receiving the network usage rule corresponding to the first service from the first device includes:

The third device receives an N2 message from the first device, where the N2 message includes a network usage rule corresponding to the first service.

In a possible implementation, the third device is an access and mobility management function AMF; the method further includes:

The third device acquires a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The third device determines whether to accept the registration request of the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the method also includes:

The third device accepts the registration request of the terminal device;

The third device determines whether to deregister the terminal device according to the network use rule corresponding to the first service.

In a possible implementation, the third device is a session management function SMF; the method further includes:

The third device acquires a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

The third device determines whether to accept the PDU session establishment request of the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the method also includes:

The third device accepts the PDU session establishment request of the terminal device, and establishes a PDU session according to the PDU session establishment request;

The third device determines whether to deactivate the PDU session according to the network usage rule.

In a possible implementation, the first device is a policy control function PCF; the method further includes:

sending, by the third device, a policy control request for the first service to the first device;

The receiving the network usage rule corresponding to the first service from the first device includes:

The third device receives policy control information sent by the first device in response to the policy control request, where the policy control information includes network usage rules corresponding to the first service.

In a possible implementation, the method also includes:

The third device sends the network usage rule corresponding to the first service to the terminal device.

Based on the communication method provided by the third aspect, its beneficial effects can be referred to the beneficial effects of the first aspect above, and repeated descriptions will not be repeated.

In a fourth aspect, the present application provides a communication method, which includes:

The terminal device receives a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes the effective time of the request for the first service and the effective location of the request for the first service;

The terminal device sends a registration request of the first service or a protocol data unit PDU session establishment request at the effective time of the first service and within the effective location of the first service.

In a possible implementation, the method also includes:

The terminal device sends a second request to the fourth device, where the second request is used to query services supported by the network;

The terminal device receives identification information of the first service supported by the network from the fourth device.

In a possible implementation, the fourth device is an access and mobility management function AMF, the second request is carried in the first non-access stratum NAS signaling, and the first service supported by the network The identification information is carried in the second NAS signaling.

In a possible implementation, the fourth device is an access network device, the second request is carried in the first radio resource control RRC signaling, and the identification information of the first service supported by the network is carried in the second request. Two RRC signaling.

In a possible implementation, the method also includes:

The terminal device receives first information from the access network device, where the first information includes identification information of the first service supported by the network.

In a possible implementation, the identification information of the first service supported by the network includes one or more of the following:

An identifier of the first service, an identifier of a service type to which the first service belongs, and an identifier of a service provider of the first service.

In a possible implementation, the first information includes a system information block SIB1.

In a possible implementation, the method also includes:

The terminal device receives a network usage rule corresponding to the first service, and the network usage rule corresponding to the first service includes a time when the request for the first service becomes effective, and a place where the request for the first service becomes effective;

The receiving the first information from the access network device includes:

The terminal device receives the first information from the access network device at the effective time of the first service and within the range of the effective location of the first service.

Based on the communication method provided in the fourth aspect, its beneficial effects can be referred to the beneficial effects of the first aspect above, and the repetition will not be repeated.

In a fifth aspect, the present application provides a communication method, which includes:

The fourth device receives a second request from the terminal device, where the second request is used to query services supported by the network;

The fourth device sends the identification information of the first service supported by the network to the terminal device.

In this application, the terminal device can initiate a query on the services supported by the network by sending the second request to the fourth device, wherein the fourth device can feed back to the terminal device based on the second request that the network where the fourth device is located supports first business.

In a possible implementation, the method also includes:

The fourth device acquires a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes an effective time of the first service and an effective location of the first service;

The sending by the fourth device to the terminal device of the identification information of the first service supported by the network includes:

The fourth device sends the identification information of the first service supported by the network at the effective time of the first service and within the effective location of the first service.

In this implementation, the fourth device can send the identification information of the first service supported by the network at the effective time of the first service and within the range of the effective location of the first service, that is, the fourth device can correspond to the first service based on the first service. The network usage rules provide the UE with a discovery mechanism of the first service supported by the local network.

In a possible implementation, the fourth device is an AMF; the method further includes:

The fourth device acquires a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The fourth device acquires a network usage rule corresponding to the first service;

The fourth device determines whether to accept the registration request of the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the method also includes:

The fourth device accepts the registration request of the terminal device;

The fourth device determines whether to deregister the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the method also includes:

The fourth device sends the network usage rule corresponding to the first service to the terminal device.

Based on the communication method provided by the fifth aspect, its beneficial effects can be referred to the beneficial effects of the first aspect above, and repeated descriptions will not be repeated.

In a sixth aspect, the present application provides a communication method, which includes:

In a possible implementation, the method also includes:

In a seventh aspect, the present application provides a communication method, which includes:

The access network device receives a network usage rule corresponding to the first service from the first device;

The access network device determines first information according to a network usage rule corresponding to the first service, where the first information includes identification information of the first service supported by the network;

The access network device sends the first information to the terminal device.

In this application, the access network device may also provide discovery of the first service by broadcasting first information including identification information of the first service. Exemplarily, the first information may be SIB1, etc., which is not limited here.

In a possible implementation, the network usage rule corresponding to the first service includes a time when the request for the first service becomes effective, and a place where the request for the first service becomes effective;

The sending the first information to the terminal device includes:

The access network device sends the first information to the terminal device at the effective time of the first service and within the range of the effective location of the first service.

In this implementation, the access network device can send the identification information of the first service supported by the network at the effective time of the first service and within the range of the effective location of the first service, that is, the access network device can send the identification information of the first service supported by the network based on the first The network usage rule corresponding to the service provides the UE with a discovery mechanism of the first service supported by the local network.

In an eighth aspect, the present application provides a communication method, the method comprising:

In a possible implementation, the method also includes:

The receiving the first information from the access network device includes:

In a possible implementation, the method also includes:

In a ninth aspect, the present application provides a communication device, the device is the first device, and the device includes:

a transceiver unit, configured to receive a first request from a second device, the first request is used to request a network usage rule of a first service, the first request carries service requirement information of the first service, and the first request A service is a service provided by the second device;

a processing unit, configured to determine a network usage rule corresponding to the first service based on the service requirement information;

The transceiving unit is configured to send the network usage rules corresponding to the first service to the second device.

In a possible implementation, when determining the network usage rule corresponding to the first service based on the service requirement information, the processing unit is specifically configured to:

Based on the service requirement information and local network usage rules, determine the network usage rules corresponding to the first service.

In a possible implementation, the service requirement information includes the terminal device requesting the first service to take effect; when determining the network usage rule corresponding to the first service based on the service requirement information, the The processing unit is used specifically for:

Acquiring the subscription information associated with the terminal device for which the request takes effect;

Based on the service requirement information and the subscription information associated with the requesting validation terminal device, determine the network usage rule corresponding to the first service.

In a possible implementation, the transceiving unit is further configured to send the network usage rule corresponding to the first service to a third device.

In a possible implementation, the third device is an access network device; when sending the network usage rule corresponding to the first service to the third device, the transceiver unit is specifically configured to:

sending an N2 message to the third device, where the N2 message includes a network usage rule corresponding to the first service.

In a possible implementation, the first device is an access and mobility management function AMF;

The transceiving unit is further configured to acquire a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The processing unit is further configured to determine whether to accept the registration request of the terminal device according to the network usage rules corresponding to the first service.

In a possible implementation, the processing unit is further configured to:

accepting the registration request of the terminal device;

Whether to deregister the terminal device is determined according to a network usage rule corresponding to the first service.

In a possible implementation, the first device is a session management function SMF;

The transceiver unit is further configured to obtain a protocol data unit PDU session establishment request of the terminal device for the first service, the PDU session establishment request including identification information of the first service;

The processing unit is further configured to determine whether to accept the PDU session establishment request of the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the processing unit is further configured to:

Accept the PDU session establishment request of the terminal device, and establish a PDU session according to the PDU session establishment request;

Determine whether to deactivate the PDU session according to the network usage rule.

In a possible implementation, the transceiving unit is further configured to send the network usage rule corresponding to the first service to the terminal device.

In a tenth aspect, the present application provides a communication device, the device is a second device, and the device includes:

a transceiver unit, configured to send a first request to the first device, the first request is used to request the network usage rules of the first service, the first request carries service requirement information of the first service, and the service requirement The information is used to determine a network usage rule corresponding to the first service, where the first service is a service provided by the second device;

The transceiving unit is further configured to receive a network usage rule corresponding to the first service from the first device.

In an eleventh aspect, the present application provides a communication device, the device is a third device, and the device includes:

a transceiver unit, configured to receive a network usage rule corresponding to the first service from the first device;

A processing unit, configured to reserve network resources for the first service based on the network usage rule corresponding to the first service.

In a possible implementation, the third device is an access network device; when receiving the network usage rule corresponding to the first service from the first device, the transceiver unit is specifically configured to:

Receive an N2 message from the first device, where the N2 message includes a network usage rule corresponding to the first service.

In a possible implementation, the third device is an access and mobility management function AMF;

In a possible implementation, the processing unit is further configured to:

accepting the registration request of the terminal device;

In a possible implementation, the third device is a session management function SMF; the processing unit is further configured to:

Acquiring a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

Determine whether to accept the PDU session establishment request of the terminal device according to a network usage rule corresponding to the first service.

In a possible implementation, the processing unit is further configured to:

In a possible implementation, the first device is a policy control function PCF;

The transceiving unit is further configured to send a policy control request of the first service to the first device;

When receiving the network usage rules corresponding to the first service from the first device, the transceiver unit is further configured to:

receiving policy control information sent by the first device in response to the policy control request, where the policy control information includes network usage rules corresponding to the first service.

In a possible implementation, the transceiver unit is also used for:

Sending the network usage rule corresponding to the first service to the terminal device.

In a twelfth aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

A transceiver unit, configured to receive a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes the time when the request for the first service takes effect, and the place where the request for the first service takes effect;

The transceiver unit is further configured to send a registration request of the first service or a PDU session establishment request of the first service at the effective time of the first service and within the range of the effective location of the first service.

In a possible implementation, the transceiver unit is also used for:

sending a second request to the fourth device, where the second request is used to query services supported by the network;

The identification information of the first service supported by the network is received from the fourth device.

In a possible implementation, the transceiver unit is also used for:

Receive first information from the access network device, where the first information includes identification information of the first service supported by the network.

In a possible implementation, the transceiver unit is also used for:

receiving a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes the effective time of the request for the first service and the valid location of the request for the first service;

When receiving the first information from the access network device, the transceiver unit is further configured to:

receiving the first information from the access network device at the effective time of the first service and within the effective location of the first service.

In a thirteenth aspect, the present application provides a communication device, which is a fourth device, and the device includes:

a transceiver unit, configured to receive a second request from the terminal device, where the second request is used to inquire about services supported by the network;

The transceiving unit is further configured to send identification information of the first service supported by the network to the terminal device.

In a possible implementation, the transceiving unit is further configured to obtain a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes an effective time of the first service, the the effective place of the first business;

When the fourth device sends the identification information of the first service supported by the network to the terminal device, the transceiver unit is further configured to:

Sending the identification information of the first service supported by the network at the effective time of the first service and within the effective location of the first service.

In a possible implementation, the fourth device is an AMF;

The transceiving unit is further configured to acquire the network usage rules corresponding to the first service;

A processing unit, configured to determine whether to accept the registration request of the terminal device according to a network usage rule corresponding to the first service.

In a possible implementation, the processing unit is further configured to:

accepting the registration request of the terminal device;

In a possible implementation, the transceiver unit is also used for:

In a fourteenth aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

a transceiver unit, configured to send a second request to the fourth device, where the second request is used to inquire about services supported by the network;

The transceiving unit is further configured to receive, from the fourth device, identification information of the first service supported by the network.

In a possible implementation, the transceiver unit is also used for:

Sending a registration request or a protocol data unit PDU session establishment request of the first service at the effective time of the first service and within the scope of the effective location of the first service.

In a fifteenth aspect, the present application provides a communication device, the device is an access network device, and the device includes:

a processing unit, configured to determine first information according to a network usage rule corresponding to the first service, where the first information includes identification information of the first service supported by the network;

The transceiving unit is further configured to send the first information to the terminal device.

When the first information is sent to the terminal device, the transceiver unit is specifically configured to:

Sending the first information to the terminal device at the effective time of the first service and within the effective location of the first service.

In a sixteenth aspect, the present application provides a communication device, the device is a terminal device, and the device includes:

The transceiver unit is configured to receive first information from the access network device, where the first information includes identification information of the first service supported by the network.

In a possible implementation, the transceiver unit is further configured to receive a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes the request effective time of the first service, and the first service The place where the request for business takes effect;

In a possible implementation, the transceiver unit is also used for:

Sending a registration request or a protocol data unit PDU session establishment request of the first service at the effective time of the first service and within the effective location of the first service.

In a seventeenth aspect, the present application provides a communication device. The device may be a terminal device, or a device in the terminal device, or a device that can be matched with the terminal device. Wherein, the communication device may also be a system on a chip. The communication device may execute the method described in the fourth aspect, the sixth aspect or the eighth aspect. The functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module can be software and/or hardware. For the operations and beneficial effects performed by the communication device, reference can be made to the methods and beneficial effects described in the fourth aspect, the sixth aspect or the eighth aspect, and repeated descriptions will not be repeated.

In an eighteenth aspect, the present application provides a communication device, which may be a network device (such as a first device, a second device, a third device, a fourth device, or an access network device), or a network device device, or a device that can be used with network equipment. Wherein, the communication device may also be a system on a chip. The communication device may execute the method described in the first aspect, the second aspect, the third aspect, the fifth aspect or the seventh aspect. The functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions. The unit or module can be software and/or hardware. For the operations and beneficial effects performed by the communication device, refer to the methods and beneficial effects described in the first aspect, the second aspect, the third aspect, the fifth aspect, or the seventh aspect above, and repeated descriptions will not be repeated.

In a nineteenth aspect, the present application provides a communication device, which may be a terminal device, and the communication device includes a processor and a transceiver, and the processor and the transceiver are used to execute at least one computer stored in a memory A program or an instruction, so that the device implements the method according to any one of the fourth aspect, the sixth aspect or the eighth aspect.

In a twentieth aspect, the present application provides a communication device, which may be a terminal device, and the communication device includes a processor, a transceiver, and a memory. Wherein, the processor, the transceiver and the memory are coupled; the processor and the transceiver are used to implement the method according to any one of the fourth aspect, the sixth aspect or the eighth aspect.

In a twenty-first aspect, the present application provides a communication device, which may be a network device (such as a first device, a second device, a third device, a fourth device or an access network device), and the communication device includes A processor and a transceiver, the processor and the transceiver are used to execute at least one computer program or instructions stored in a memory, so that the device realizes the first aspect, the second aspect, the third aspect, and the fifth aspect Or the method of any one of the seventh aspect.

In a twenty-second aspect, the present application provides a communication device, which may be a network device (such as a first device, a second device, a third device, a fourth device or an access network device), and the communication device includes processing devices, transceivers and memory. Wherein, the processor, the transceiver and the memory are coupled; the processor and the transceiver are used to implement the method in any one of the first aspect, the second aspect, the third aspect, the fifth aspect or the seventh aspect.

In a twenty-third aspect, the present application provides a computer-readable storage medium, in which computer programs or instructions are stored. When the computer programs or instructions are executed by a computer, the fourth aspect, the sixth aspect or the eighth aspect can be realized. A method for any one of the aspects.

In the twenty-fourth aspect, the present application provides a computer-readable storage medium, in which computer programs or instructions are stored. When the computer programs or instructions are executed by a computer, the first aspect, the second aspect, and the third aspect can be realized. Aspect, the method of any one of the fifth aspect or the seventh aspect.

In a twenty-fifth aspect, the present application provides a computer program product including instructions, the computer program product includes computer program code, when the computer program code is run on a computer, to achieve the fourth aspect, the sixth aspect or the first aspect Any one of the eight methods.

In the twenty-sixth aspect, the present application provides a computer program product including instructions, the computer program product includes computer program code, when the computer program code is run on the computer, to realize the first aspect, the second aspect, and the first aspect The method of any one of the third aspect, the fifth aspect or the seventh aspect.

In a twenty-seventh aspect, there is provided a chip system, the chip system includes a processor, and may also include a memory, for implementing any aspect of the fourth aspect, the sixth aspect, or the eighth aspect and any possible design method . The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

A twenty-eighth aspect provides a chip system, the chip system includes a processor, and may also include a memory, for realizing any one of the first aspect, the second aspect, the third aspect, the fifth aspect or the seventh aspect Aspects and methods of any possible design. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

A twenty-ninth aspect provides a communication system, which includes the first device, the second device, the third device, and the fourth device described in the first aspect to the eighth aspect above, and the access network device one or more.

In a possible implementation, the communication system further includes a terminal device.

Description of drawings

Figure 1a is a schematic diagram of a communication system architecture;

Figure 1b is a schematic diagram of another communication system architecture;

Figure 1c is a schematic diagram of another communication system architecture;

Figure 1d is a schematic structural diagram of another communication system;

FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 3 is another schematic flowchart of a communication method provided by an embodiment of the present application;

Fig. 4a is a schematic diagram of a scenario of sending network usage rules to relevant network elements provided by the embodiment of the present application;

FIG. 4b is a schematic diagram of another scenario of sending network usage rules to relevant network elements provided by the embodiment of the present application;

FIG. 4c is a schematic diagram of another scenario of sending network usage rules to relevant network elements provided by the embodiment of the present application;

FIG. 5 is another schematic flowchart of a communication method provided by an embodiment of the present application;

Fig. 6a is a schematic flow chart of the first service discovery provided by the embodiment of the present application;

Fig. 6b is another schematic flowchart of the first service discovery provided by the embodiment of the present application;

FIG. 7 is another schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 8 is another schematic flowchart of a communication method provided by an embodiment of the present application;

Figure 9 is a schematic diagram of the registration process provided by the embodiment of the present application;

FIG. 10 is another schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of the PDU session establishment process provided by the embodiment of the present application;

Fig. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of the present application.

Detailed ways

The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

The terms "first" and "second" in the specification, claims and drawings of the present application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In this application, "at least one (item)" means one or more, "multiple" means two or more, "at least two (items)" means two or three and three Above, "and/or" is used to describe the association relationship of associated objects, which means that there can be three kinds of relationships, for example, "A and/or B" can mean: only A exists, only B exists, and A and B exist at the same time A case where A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c ", where a, b, c can be single or multiple.

In order to better understand the embodiment of the present application, the following first introduces the system architecture involved in the embodiment of the present application:

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex) , TDD), new radio (new radio, NR), the third generation partner project (the 3rd generation partner project, 3GPP) service-based network architecture (service-based architecture, SBA) and the fifth generation (5th generation, 5G) system or the communication system evolved after 5G of the sixth generation (6th generation, 6G) communication system, etc.

Please refer to FIG. 1a, which is a schematic diagram of a communication system architecture. As shown in Figure 1a, the terminal device can access the wireless network to obtain services from the external network (such as a data network (DN)) through the wireless network, or communicate with other devices through the wireless network, such as communicating with other terminals Device communication. The wireless network includes a (wireless) access network ((radio) access network, (R) AN) and a core network (core network, CN), where the (R) AN (hereinafter referred to as RAN) is used to connect terminal equipment Connected to the wireless network, the CN is used to manage the terminal equipment and provide a gateway for communicating with the DN. The terminal equipment, RAN, CN, and DN involved in the system architecture in FIG. 1a are described in detail below.

1. Terminal equipment

Terminal equipment includes equipment that provides voice and/or data connectivity to users. For example, terminal equipment is a device with wireless transceiver capabilities that can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed in On the water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.). Terminal equipment can be mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, industrial control (industrial control) Wireless terminals in vehicle-mounted terminals, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, wearable terminals, etc. The embodiments of the present application do not limit the application scenarios. A terminal device may sometimes be referred to as a terminal, user equipment (UE), access terminal, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE proxy or UE device, etc. Terminals can also be fixed or mobile. It can be understood that all or part of the functions of the terminal in this application may also be realized by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).

2. RAN

The RAN may include one or more RAN devices (or access network devices), and the interface between the access network device and the terminal device may be a Uu interface (or called an air interface). Of course, in the communication evolved after 5G, the names of these interfaces may not change, or may be replaced by other names, which is not limited in this application.

The access network device is a node or device that connects the terminal device to the wireless network. For example, the access network device includes but is not limited to: next generation node B (next generation node B, gNB) and evolved node in the 5G communication system. B (evolved node B, eNB), next generation evolved node B (next generation eNB, ng-eNB), wireless backhaul equipment, radio network controller (radio network controller, RNC), node B (node B, NB) , home base station ((home evolved nodeB, HeNB) or (home node B, HNB)), baseband unit (baseBand unit, BBU), transmission and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP) , mobile switching center, device-to-device (Device-to-Device, D2D), vehicle outreach (vehicle-to-everything, V2X), machine-to-machine (machine-to-machine, M2M) communication equipment that undertakes the base station function etc., can also include the centralized unit (CU) and distributed unit (DU) in the cloud access network (cloud radio access network, C-RAN) system, non-terrestrial communication network (non-terrestrial network, NTN) communication system, that is, it can be deployed on high-altitude platforms or satellites, etc., which is not specifically limited in this embodiment of the present application.

3. CN

The CN may include one or more CN devices (which may also be understood as network element devices or functional network elements).

Please refer to FIG. 1b, which is a schematic diagram of another communication system architecture. The communication system is a system architecture in a 5G non-roaming scenario. As shown in Figure 1b, the communication system includes the following network functions and entities: network slice selection function (network slice selection function, NSSF), network exposure function (network exposure function, NEF), network storage function (network function repository function, NRF ), policy control function (policy control function, PCF), unified data management (unified data management, UDM), application function (application function, AF), authentication server function (authentication server function, AUSF), access and mobility management Function (access and mobility management function, AMF), session management function (session management function, SMF), UE, (wireless) access network ((radio) access network, (R)AN), user plane function (user plane function , UPF) and data network (data network, DN). in:

1. User plane network element: As an interface with the data network, it completes functions such as user plane data forwarding, session/flow-based billing statistics, and bandwidth limitation. That is, packet routing and forwarding, and quality of service (QoS) processing of user plane data.

In a 5G communication system, the user plane network element may be a UPF network element.

2. Authentication server: perform user security authentication. In a 5G communication system, the authentication server may be an AUSF network element.

3. Mobility management network element: mainly used for mobility management and access management. In the 5G communication system, the access management network element may be an AMF network element, which mainly performs functions such as mobility management and access authentication/authorization. In addition, it is also responsible for transmitting user policies between terminals and PCF network elements.

4. Session management network element: mainly used for session management, network interconnection protocol (internet protocol, IP) address allocation and management of user equipment, selection of manageable user plane functions, policy control and charging function interface endpoints and downlink data notification etc.

In the 5G communication system, the session management network element can be an SMF network element, which completes terminal IP address allocation, UPF selection, and charging and QoS policy control.

5. Application network element: In the 5G communication system, the application network element can be an AF network element, which represents the application function of a third party or an operator. It is an interface for the 5G network to obtain external application data, and is mainly used to transfer the application side to the network. side needs.

6. Unified data management network element: responsible for the management of user identification, contract data, authentication data, and user service network element registration management. In a 5G communication system, the unified data management network element may be a UDM network element.

7. Policy control network element: including user subscription data management function, policy control function, billing policy control function, service quality (quality of service, QoS) control, etc., a unified policy framework for guiding network behavior, which is the control plane function Network elements (such as AMF, SMF network elements, etc.) provide policy rule information and the like.

In a 5G communication system, the policy control network element may be a PCF.

8. Network function repository function network element: provide storage function and selection function of network function entity information for other core network elements. In a 5G communication system, the network element may be an NRF network element.

9. Network open network element: In the 5G communication system, the network open network element can be a NEF network element, which is mainly used to expose the services and capabilities of the 3GPP network function to the AF, and also allow the AF to provide information to the 3GPP network function.

10. Network element with network slice selection function: responsible for selecting network slices for the UE. In the 5G communication system, the application network element can be an NSSF network element.

The above-mentioned functional network element can be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform). The above-mentioned functional network elements can be divided into one or more services, and further, there may also be services that exist independently of network functions. In this application, an instance of the above-mentioned functional network element, or an instance of a service included in the above-mentioned functional network element, or a service instance existing independently of a network function may be referred to as a service instance.

In addition, although not shown, CN may also include other possible network elements, such as service communication proxy (service communication proxy, SCP), network slice admission control (network slice admission control function, NSACF), network element unified data storage (unified data repository, UDR) network element.

What needs to be known is that in a 5G communication system, each functional network element can be the name of each functional network element shown in Figure 1b. In a communication system that evolves after 5G (such as a 6G communication system), each functional network element can be It is still the name of each functional network element shown in FIG. 1b, or may have other names. For example, in a 5G communication system, the policy control network element may be a PCF. In a communication system evolved after 5G (such as a 6G communication system), the policy control function may still be a PCF, or may have other names. This application does not limited.

Among them, Nnssf is the service interface provided by NSSF; Nnef is the service interface provided by NEF; Nnrf is the service interface provided by NRF; Npcf is the service interface provided by PCF; Nudm is the service interface provided by UDM; Naf is AF The service interface provided by Nausf is the service interface provided by AUSF; the service interface provided by Namf is AMF; the service interface provided by Nsmf is SMF; N1 is the reference point between UE and AMF; N2 is (R)AN and AMF; N3 is the reference point between (R)AN and UPF; N4 is the reference point between SMF and UPF; N6 is the reference point between UPF and DN; N9 is the reference point between UPF reference point. It should be noted that the meanings of Nnssf, Nnef, Nnrf, Npcf, Nudm, Naf, Nausf, Namf, Nsmf, N1, N2, N3, N4, N6, and N9 in Figure 1b can refer to the meanings defined in relevant standard agreements, There is no limitation here.

Please refer to FIG. 1c, which is a schematic diagram of another communication system architecture. The communication system is a system architecture in a 5G local breakout (LBO) roaming scenario. As shown in Figure 1c, the communication system includes two public land mobile networks (PLMN) respectively: visit public land mobile network (visit public land mobile network, VPLMN) and home public land mobile network (home public land mobile network) network, HPLMN). Each PLMN includes a security edge protection proxy (SEPP), denoted as a visit security edge protection proxy (vSEPP) and a home security edge protection proxy (hSEPP) respectively. .

Wherein, VPLMN includes: NSSF, NEF, NRF, PCF, AF, AMF, SMF, UE, (R)AN, UPF and DN.

HPLMN includes: UDM, NRF, specific network slice authentication and authorization function (network slice specific authentication and authorization function, NSSAAF), AUSF, PCF and NEF. in:

Among them, Nnssf is the service interface provided by NSSF; Nnef is the service interface provided by NEF; Nnrf is the service interface provided by NRF; Npcf is the service interface provided by PCF; Naf is the service interface provided by AF; Nudm is UDM Service interface provided by Nnrf; service interface provided by NRF; service interface provided by Nnssaaf for NSSAAF; service interface provided by Namf for AMF; service interface provided by Nsmf for SMF; service interface provided by Nausf for AUSF . N1 is the reference point between UE and AMF; N2 is the reference point between (R)AN and AMF; N3 is the reference point between (R)AN and UPF; N4 is the reference point between SMP and UPF; N6 is the reference point between UPF and DN; N9 is the reference point between UPF; N32 is the reference point between vSEPP and hSEPP.

Please refer to FIG. 1d, which is a schematic structural diagram of another communication system. The communication system is a system architecture in a 5G homerouted roaming scenario. As shown in Figure 1d, the communication system includes two public land mobile networks (public land mobile network, PLMN): VPLMN and HPLMN. Each PLMN includes a SEPP, denoted as vSEPP and hSEPP, respectively.

VPLMN includes: NSSF, NEF, NRF, PCF, vSEPP, AMF, SMF, UE, (R)AN, UPF;

HPLMN includes: UDM, NRF, NEF, NSSF, hSEPP, SMF, AUSF, NSSAAF, PCF, AF, UPF and DN;

Among them, Nnssf is the service-oriented interface provided by NSSF; Nnef is the service-oriented interface provided by NEF; Nnrf is the service-oriented interface provided by NRF; Npcf is the service-oriented interface provided by PCF; Nudm is the service-oriented interface provided by UDM; Nnrf is the service-oriented interface provided by NRF Service interface provided by Nnef for NEF; Nnssf for NSSF; Namf for AMF; Nsmf for SMF; Nsmf for SMF ; Nausf is the service interface provided by AUSF; Nnssaaf is the service interface provided by NSSAAF; Npcf is the service interface provided by PCF; Naf is the service interface provided by AF. N1 is the reference point between UE and AMF; N2 is the reference point between (R)AN and AMF; N3 is the reference point between (R)AN and UPF; N4 is the reference point between SMP and UPF; N6 is the reference point between UPF and DN; N9 is the reference point between UPF; N32 is the reference point between vSEPP and hSEPP.

4. DN

DN can also be called packet data network (packet data network, PDN), which is a network located outside the operator's network. The operator's network can access multiple DNs, and application servers corresponding to various services can be deployed in the DN. End devices offer a wide variety of possible services. In this embodiment of the application, the DN may also be described as a third-party service provider or a service provider, etc., which is not limited here.

It should be noted that for third-party service providers, the third-party service provider usually needs to provide third-party services to UEs in the coverage area of the local network through the local network, but currently, no matter whether it is PLMN or NPN, the local network does not have The ability to automatically negotiate network usage rules with a third-party service server (such as an application function (AF)). Instead, the PCC rules of the current protocol data unit (protocol data unit, PDU) session are changed manually, thereby updating the routing rules of the user plane, such as quality of service (quality of service, QoS) rules, etc., but this manual setting The method has poor flexibility and low applicability.

Based on this, the embodiment of the present application proposes a communication method, which can realize automatic negotiation of network usage rules, and is beneficial to improve communication reliability.

The communication method and communication device provided by this application are introduced in detail below:

Please refer to FIG. 2 . FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 2, the communication method includes the following steps S201-S203:

S201. The first device receives a first request from a second device.

In some feasible implementation manners, the second device sends a first request to the first device, and then a network rule negotiation process between the second device and the first device regarding the use of the local network by the first service may be initiated through the first request. Accordingly, the first device receives the first request from the second device. Specifically, the second device may send the first request to the first device directly or through the NEF of the local network. Where the second device sends the first request to the first device through the NEF of the local network, it may be understood that the second device sends the first request to the NEF, and the NEF forwards the first request to the first device. Wherein, the first request is used to request the network usage rules of the first service. It can be understood that the network usage rules of the first service can be understood as the usage restrictions when the second device uses the local network where the first device is located to provide the first service, that is, the second device needs to pass through the local network where the first device is located under certain restrictions. Provide the first business.

The first request carries service requirement information of the first service, and the first service is a service provided by the second device. It can be understood that the number of the first service may be one or more, which is not limited here. For the convenience of understanding, the following embodiments of the present application will be schematically described by taking one first service as an example.

It should be noted that the first device involved in this embodiment of the present application may be a PCF, AMF, SMF, UDM, or NF of a local network, which is determined according to an actual application scenario, and is not limited here. The second device involved in this embodiment of the present application may be understood as an application server or an AF corresponding to a service provider, which is not limited here.

Wherein, the service requirement information of the first service can be understood as the specific content expected to be included in the configured network usage rules when the second device requests to provide the terminal device with the first service through the local network where the first device is located. Specifically, the service requirement information of the first service includes one or more of the following information: the identification information of the first service, the terminal device when the request for the first service takes effect, the time when the request for the first service takes effect, and the request for the first service Validation location, requested QoS of the first service, requested resources of the first service, etc. It should be noted that the identification information of the first service may be used to identify the first service provided by the second device. Specifically, the identification information of the first service may include a data network name (data network name, DNN) and a slice combination. One or more of the identifier of a service, the identifier of the service type to which the first service belongs, and the identifier of the service provider of the first service are not limited here. The terminal device may understand that the request for the first service to take effect means that if the first service is only valid for a specific UE, the first request includes a corresponding UE identity, and the identity may point to one UE or multiple UEs. Wherein, the resource request of the first service may be understood as including the bandwidth resource request required by the first service, the maximum number of users request, the network load threshold request, etc., which are not limited here.

S202. The first device determines a network usage rule corresponding to the first service based on the service requirement information.

In some feasible implementation manners, the first device may determine the network usage rule corresponding to the first service based on the service requirement information. specifically:

In a possible implementation, when the service requirement information does not contain the request for the first service to take effect on the terminal device, the first device considers that the first request is provided for all UEs, so the first device determines the first service based on the service requirement information. The network usage rule corresponding to the service may be understood as: the first device may determine the network usage rule corresponding to the first service based on the service requirement information and the local network usage rule. Wherein, the local network usage rule may be a network usage rule corresponding to the first service pre-configured in the first device, or the local network usage rule may also be a network usage rule corresponding to the first service obtained from other devices etc., no limitation here. For example, assuming that the local network usage rule is that the first service can be provided for terminal devices under cells 1 to 5, where when the service requirement information includes the location where the request takes effect, the first device can transfer from cell 1 to cell 5 according to the quality of the cell. The effective location is determined in , for example, the effective location is cell 1 and cell 2. For another example, assume that the local network usage rule is that the first service can be provided for terminal devices in cells 1 to 5, where the service requirement information includes the request effective location, and the request effective location in the service requirement information is cell 1 and cell 5. In the case of cell 3, the valid locations for feedback from the first device to the second device may be cell 1 and cell 3.

In another possible implementation, when the service requirement information includes the terminal device requesting the first service to take effect, the above-mentioned first device determines the network usage rule corresponding to the first service based on the service requirement information, which can be understood as: the first device acquires requesting the subscription information associated with the valid terminal device; further, the first device determines the network usage rules corresponding to the first service based on the service requirement information and the subscription information associated with the terminal device requesting validation; or, the first device determines the network usage rule corresponding to the service requirement information, request Validate the subscription information associated with the terminal device and the local network usage rules to determine the network usage rules corresponding to the first service.

Wherein, the subscription information associated with the terminal device requesting validation includes at least one of the following subscription information: DNN subscription information, slice subscription information, first service subscription information, etc., which are not limited here. Wherein, the subscription information of the first service may include identification information of the first service, mobility restriction information, QoS restriction information, etc., which are not limited here. For example, the identification information of the first service may include the identification of the first service, the identification of the service type to which the first service belongs, and the identification of the service provider of the first service, etc., and the mobility restriction information may include The time limit (that is, the effective time information of the first service) and the location limit (that is, the effective location information of the first service) of the UE using the first service are not limited here, and the QoS limit information may include that the UE uses the first service. Various QoS parameter restrictions during service (that is, QoS information of the first service), etc., are not limited here.

It should be noted that, when the first device is PCF, AMF, SMF or NF, the acquisition of the subscription information associated with the terminal device requesting validation by the first device can be understood as: the first device initiates the UE (that is, the terminal device requesting validation) Subscription information query request to obtain the subscription information associated with the terminal device where the request takes effect. When the first device is a UDM, the first device may acquire the subscription information associated with the terminal device requesting validation stored in itself.

S203. The first device sends the network usage rule corresponding to the first service to the second device.

In some feasible implementation manners, the first device sends the network usage rule corresponding to the first service to the second device. Correspondingly, the second device receives the network usage rule corresponding to the first service from the first device. Specifically, the first device may send the network usage rule corresponding to the first service to the second device directly or through the NEF of the local network. Understandably, in a possible implementation manner, the first device may send a first response to the second device directly or through the NEF of the local network, where the first response includes a network usage rule corresponding to the first service. Where the first device sends the first response to the second device through the NEF of the local network, it may be understood that the first device sends the first response to the NEF, and the NEF forwards the first response to the second device.

It should be noted that the network usage rules corresponding to the first service include one or more of the following: identification information of the first service, effective terminal equipment of the first service, effective time of the first service, effective location of the first service, The QoS information of the first service, the resource information of the first service, etc. are not limited here. It should be noted that the identification information of the first service may be used to identify the first service authorized to use the local network where the first device is located. Specifically, the identification information of the first service may include a DNN and a slice combination, an identification of the first service, One or more of the identifier of the service type to which the first service belongs, and the identifier of the service provider of the first service are not limited here. The effective terminal devices of the first service may be understood as terminal devices authorized to use the local network, that is, the network use rule is only valid for this part of the terminal devices. It should be noted that if the first request includes validating terminal devices, the validating terminal devices included in the network usage rules fed back by the first device to the second device may be all or part of the validating terminal devices. The effective time of the first service can be understood as the effective time limit of the first service authorized to use the local network, the effective place of the first service can be understood as the effective place limit of the first service authorized to use the local network, and the QoS information of the first service It can be understood as the QoS restriction authorized to use the first service of the local network, and the resource information of the first service can be understood as the reserved resources authorized to use the first service of the local network, including the bandwidth resource reserved for the first service, the maximum The number of users, network load threshold, etc. are not limited here.

In this embodiment of the application, the second device sends the first request to the first device, and then the first device based on the service requirement information in the first request, UE subscription information (optional) and local network usage rule configuration information, Decide whether to accept the first request of the second device, and determine the network usage rules for providing the first service using the local network, and further, the first device transmits the network usage rules to the second device. Therefore, the second device can automatically negotiate with the first device to determine the network usage rules for providing the first service by using the local network where the first device is located, which is beneficial to improve the reliability of subsequent communication.

It should be noted that after the first device determines that the first service uses the network usage rules of the local network, it may send the network usage rules to other relevant network elements of the local network, such as AMF, SMF, PCF, UDM, etc., so that The network side may reserve network resources for the first service according to the network usage rule. For the specific implementation process, refer to the content described in Figure 3 below.

Please refer to FIG. 3 . FIG. 3 is another schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 3, the communication method includes the following steps S301-S302:

S301. The first device determines a network usage rule corresponding to the first service.

In some feasible implementation manners, the first device determines a network usage rule corresponding to the first service. Among them, the network usage rules corresponding to the first service include one or more of the following: identification information of the first service, effective terminal equipment of the first service, effective time of the first service, effective location of the first service, first service The QoS information of the first service, the resource information of the first service, etc. are not limited here.

S302. The first device sends the network usage rule corresponding to the first service to the third device.

In some feasible implementation manners, the first device sends the network usage rule corresponding to the first service to the third device. Wherein, the first device involved in the embodiment of the present application may be any one of PCF, AMF, SMF, UDM or NF, etc., and the third device involved in the embodiment of the present application may be other related The network element of the core network (that is, the core network device), and/or the third device may be an access network device, etc., which is not limited here. Wherein, other relevant core network elements include one or more of AMF, SMF, PCF and UDM. Correspondingly, after receiving the network usage rule corresponding to the first service, the third device may reserve network resources for the first service under specific restrictions (such as effective time and/or effective location) based on the network usage rule . Exemplarily, when the third device is another related core network element, the network resources reserved by the third device for the first service based on the network usage rules may be the number of registered users, the number of PDU sessions and/or the number of QoS flows, and the like. Exemplarily, when the third device is an access network device, the network resources reserved by the third device for the first service based on network usage rules may be the number of scheduled users and/or spectrum resources, etc., which are not limited here.

It should be noted that after the first device sends the network usage rules corresponding to the first service to other relevant core network elements, in a possible implementation, when other relevant core network elements are SMF/PCF/UDM, the SMF /PCF/UDM needs to forward the N2 message to the access network device through the AMF, and the N2 message includes the network usage rule corresponding to the first service. When other relevant core network elements are AMF, the AMF can directly send the N2 message to the access network device. In another possible implementation, when the first device is SMF/PCF/UDM/NF, the first device may forward the N2 message to the access network device through AMF, or, when the first device is AMF, the first The device may directly send an N2 message to the access network device, where the N2 message includes a network usage rule corresponding to the first service.

The embodiment in FIG. 3 above will be specifically described below in conjunction with specific examples.

For example, please refer to FIG. 4a . FIG. 4a is a schematic diagram of a scenario of sending network usage rules to relevant network elements according to an embodiment of the present application. As shown in Fig. 4a, the first device may be an SMF, PCF, UDM or NF, and the third device may be other SMFs, other PCFs or other UDMs except the first device. Wherein, S1, SMF/PCF/UDM/NF may send the network usage rules corresponding to the first service to other SMFs/other PCFs/other UDMs. S2. Other SMFs/other PCFs/other UDMs reserve network resources for the first service. Specifically, after receiving the network usage rules corresponding to the first service, other SMFs/other PCFs/other UDMs may reserve corresponding network resources for the first service according to the network usage rules corresponding to the first service. S3. Other SMFs/other PCFs/other UDMs send network usage rules corresponding to the first service to the AMF. S4. The AMF sends the N2 message to the access network device. The N2 message includes the network usage rules corresponding to the first service. S5. The access network device reserves network resources for the first service. Specifically, after receiving the network usage rule corresponding to the first service, the access network device may reserve corresponding network resources for the first service according to the network usage rule corresponding to the first service.

For example, please refer to FIG. 4b . FIG. 4b is a schematic diagram of another scenario of sending network usage rules to relevant network elements provided by an embodiment of the present application. As shown in Fig. 4b, the first device may be an SMF, PCF, UDM or NF, and the third device may be an AMF other than the first device. Wherein, S1, SMF/PCF/UDM/NF may send the network usage rules corresponding to the first service to the AMF. S2. The AMF reserves network resources for the first service. Specifically, after receiving the network usage rules corresponding to the first service, the AMF may reserve corresponding network resources for the first service according to the network usage rules corresponding to the first service. S3. The AMF sends the N2 message to the access network device. The N2 message includes the network usage rules corresponding to the first service. S4. The access network device reserves network resources for the first service. Specifically, after receiving the network usage rule corresponding to the first service, the access network device may reserve corresponding network resources for the first service according to the network usage rule corresponding to the first service.

For example, please refer to FIG. 4c, which is a schematic diagram of another scenario of sending network usage rules to relevant network elements provided by the embodiment of the present application. As shown in FIG. 4c, the first device may be an AMF, and the third device may be an SMF, PCF, UDM or other AMF other than the first device. Wherein, S1 and the AMF may send the network usage rules corresponding to the first service to the SMF/PCF/UDM/other AMFs. S2. The SMF/PCF/UDM/other AMF reserves network resources for the first service. Specifically, after receiving the network usage rules corresponding to the first service, the SMF/PCF/UDM/other AMF may reserve corresponding network resources for the first service according to the network usage rules corresponding to the first service. S3. The AMF sends the N2 message to the access network device. The N2 message includes the network usage rules corresponding to the first service. S4. The access network device reserves network resources for the first service. Specifically, after receiving the network usage rule corresponding to the first service, the access network device may reserve corresponding network resources for the first service according to the network usage rule corresponding to the first service.

In this embodiment of the present application, after the first device and the second device negotiate and determine the network usage rules, the first device may send the latest network usage rules to relevant core network elements and/or access network devices. Therefore, the core network side and the access network side of the first device can reserve network resources for the first service according to the network usage rules, so as to subsequently control the UE's access to and use of the first service, which improves subsequent communication reliability.

It should be noted that, after the core network side and/or the access network side of the local network obtain the network usage rules, the core network side and/or the access network side of the local network can provide the first service according to the network usage rules. Reserving network resources can also enable first service discovery based on determined network usage rules. The implementation process of enabling the first service discovery on the core network side and/or the access network side is described below, specifically refer to the parts involved in FIG. 5 to FIG. 7 below.

Please refer to FIG. 5 . FIG. 5 is another schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 5, the communication method includes the following steps S501-S502:

S501. The fourth device receives a second request from a terminal device.

In some feasible implementation manners, the terminal device sends the second request to the fourth device, and correspondingly, the fourth device receives the second request from the terminal device. The second request is used to query the services supported by the network.

S502. The fourth device sends identification information of the first service supported by the network to the terminal device.

In some feasible implementation manners, the fourth device sends the identification information of the first service supported by the network to the terminal device. Wherein, the identification information of the first service may include one or more of the identification of the first service, the identification of the service type to which the first service belongs, and the identification of the service provider of the first service, etc., which are not limited here. In a possible implementation, the fourth device may send a second response to the terminal device, where the second response includes identification information of the first service supported by the network.

It should be noted that the fourth device involved in the embodiment of the present application sends the identification information of the first service supported by the network to the terminal device, which can be understood as: the fourth device acquires the network usage rules corresponding to the first service, where the first service The corresponding network usage rules may include information such as the effective time of the first service, the effective location of the first service, or the identification information of the first service, the effective terminal device of the first service, the effective time of the first service, the first service One or more of the effective location of the first service, the QoS information of the first service, and the resource information of the first service are not limited here. The fourth device sends the identification information of the first service supported by the network at the effective time of the first service and within the range of the effective location of the first service.

Understandably, the fourth device involved in this embodiment of the present application may be an AMF, or the fourth device may be an access network device, which is not limited here. Wherein, when the fourth device is an AMF, the second request may be carried in the first non-access-stratum (NAS) signaling, and the identification information of the first service supported by the network fed back by the AMF may be carried in the Second NAS signaling. When the fourth device is an access network device, the second request may be carried in the first radio resource control (radio resource control, RRC) signaling, and the identification information of the first service supported by the network fed back by the access network device may be carried In the second RRC signaling.

The embodiment in FIG. 5 above will be specifically described below in combination with specific examples.

For example, please refer to FIG. 6a, which is a schematic flowchart of the first service discovery provided by the embodiment of the present application. As shown in FIG. 6a, S1. The terminal device sends a first NAS signaling to the access network device, and the first NAS signaling includes a query request of the terminal device for service information supported by the current network, that is, a second request. S2. The access network device forwards the received first NAS signaling to the AMF. S3. The AMF sends the second NAS signaling to the access network device at the effective time of the first service and within the effective location of the first service. The second NAS signaling includes identification information of the first service supported by the network. S4. The access network device sends the second NAS signaling to the terminal device. That is to say, after the AMF receives the first NAS signaling containing the second request, the AMF can use the network usage rules of the first service only when the constraints of the rules are met (for example, the effective time and effective time of the first service) within the location range) returns the second NAS signaling including the identification information of the first service supported by the current network to the terminal device through the access network device.

For example, please refer to FIG. 6b, which is another schematic flowchart of the first service discovery provided by the embodiment of the present application. As shown in FIG. 6b, S1. The terminal device sends first RRC signaling to the access network device, where the first RRC signaling includes a query request of the terminal device for service information supported by the current network, that is, a second request. S2. The access network device sends the second RRC signaling to the terminal device. That is to say, after the BMF receives the first RRC signaling containing the second request, the BMF can use the network usage rules of the first service only when the constraints of the rules are met (for example, the effective time and effective time of the first service) location range) returns to the terminal device the second RRC signaling including the identification information of the first service supported by the current network.

In this embodiment of the application, the fourth device (for example, AMF or access network device) may, based on the second request of the terminal device, feed back to the terminal device the first service supported by the network within the effective time and/or effective place of the first service. a business.

Please refer to FIG. 7. FIG. 7 is another schematic flowchart of the communication method provided by the embodiment of the present application. As shown in Figure 7, the communication method includes the following steps S701-S703:

S701. The access network device receives a network usage rule corresponding to the first service from the first device.

In some feasible implementation manners, the first device or other relevant network elements of the access network may send the network usage rules corresponding to the first service to the access network device. Correspondingly, the access network device receives the network usage rule corresponding to the first service from the first device or other relevant access network elements. The network use rule corresponding to the first service may include information such as effective time and effective place of the first service. Further, the network usage rule corresponding to the first service may also include one or more of the identification information of the first service, valid terminal equipment of the first service, QoS information of the first service, resource information of the first service, etc. , without limitation here.

S702. The access network device determines first information according to a network usage rule corresponding to the first service.

In some feasible implementation manners, the access network device determines the first information according to a network usage rule corresponding to the first service, where the first information includes identification information of the first service supported by the network. Wherein, the identification information of the first service may include one or more of the identification of the first service, the identification of the service type to which the first service belongs, and the identification of the service provider of the first service, etc., which are not limited here.

S703. The access network device sends the first information to the terminal device.

In some feasible implementation manners, the access network device may send the first information to the terminal device at the effective time of the first service and within the range of the effective location of the first service. The first information of the device connected to the network. In a possible implementation manner, the first message may be a system information block 1 (system information block 1, SIB1), that is to say, the access network device may, based on the acquired network usage rules of the first service, satisfy When the constraint conditions of the rule are met (for example, within the effective time and/or effective location of the first service), the SIB1 is broadcast through the air interface, and the SIB1 includes the identification information of the first service supported by the network. Correspondingly, the terminal device receives the The SIB1 of the access network device, and thus the terminal device can learn the services supported by the network based on the identification information of the first service included in the SIB1.

In this embodiment of the present application, the access network device may broadcast the capability support of the first service through SIB1 within the effective time and effective place specified in the network usage rule.

It should be noted that, after the core network side and the access network side of the local network acquire the network usage rules, the local network may also control the UE's access to and use of the first service subsequently. The implementation process of controlling the UE's access to and use of the first service at the core network side and the access network side will be described below, for details, refer to the parts involved in FIG. 8 and FIG. 10 below.

Please refer to FIG. 8 . FIG. 8 is another schematic flowchart of a communication method provided by an embodiment of the present application. 8 mainly describes that when the terminal device initiates a network registration process directed to the first service in the local network, the AMF can control the registration process according to the determined network usage rules of the first service. As shown in Figure 8, the communication method includes the following steps S801-S802:

S801. The AMF obtains a registration request of a terminal device for a first service.

In some feasible implementation manners, the AMF acquires a registration request of the terminal device for the first service, where the registration request includes identification information of the first service. Wherein, the identification information of the first service may include one or more of the identification of the first service, the identification of the service type to which the first service belongs, and the identification of the service provider of the first service, etc., which are not limited here.

S802. The AMF determines whether to accept the registration request of the terminal device according to the network usage rules corresponding to the first service.

In some feasible implementation manners, the AMF may determine whether to accept the registration request of the terminal device according to the network usage rules corresponding to the first service. Wherein, when the AMF determines to accept the registration request of the terminal device, and after the registration of the terminal device is completed, the AMF may determine whether to register the terminal device according to the network usage rules corresponding to the first service.

Optionally, the AMF may also send the network usage rules of the first service applied for by the UE to the UE, wherein the UE receives and stores the network usage rules of the first service, and uses the rules as a decision whether to initiate a service based on the first One of the conditions of the service registration request, for example, the UE initiates registration based on the first service only within the limits of the network usage rules (such as effective time, effective location, slice, DNN).

The embodiment in FIG. 8 above will be specifically described below in conjunction with specific examples.

For example, please refer to FIG. 9 , which is a schematic diagram of a registration process provided by an embodiment of the present application. As shown in Figure 9, the network elements involved in the registration process include UE, (R)AN, New AMF, Old AMF, first device, SMF, AUSF and UDM. Among them, the description of the non-bold part steps in Figure 9 can refer to the description of the relevant steps in Section 4.2.2.2 of the protocol TS 23.502, and will not be repeated here. The following mainly elaborates on the steps related to the above-mentioned Figure 8 in Figure 9, that is, describes the steps in bold in Figure 9:

In step 1, the UE indicates the first service to be registered in the registration request (Registration Request), and the first service can be identified by the identification information of the first service, wherein the identification information of the first service includes the identification of the first service , or the identifier of the service type to which the first service belongs, or the identifier of the service provider of the first service, etc.

In step 16, the AMF interacts with the first device to obtain the network usage rule of the first service indicated by the UE, the network usage rule includes the effective terminal device of the first service, the effective time of the first service, and the The effective location of the first service, the QoS information of the first service, the resource information of the first service, etc. It should be noted that the relevant description in step 16 about the network usage rules for the AMF to obtain the first service through the interaction with the first device can be understood as equivalent to the above-mentioned first device involved in Figure 3 sending the network to the relevant network element. Rules of use.

In step 21a, the AMF decides whether to accept the registration request of the first service indicated by the UE based on the obtained network usage rules of the first service. The acceptance message (ie Registration Accept) is sent to the UE.

In step 22, the AMF may decide whether to register the UE based on the obtained network usage rules of the first service. For example, when the effective time of the first service expires, and/or exceeds the effective location limit, it is determined to deregister the UE.

That is to say, during the registration process, the UE can initiate a registration request pointing to the first service in the local network, and the AMF can obtain the network usage rules of the first service during the registration process, so the subsequent AMF can decide whether to accept or not based on this rule. UE's registration request. Further, after the registration of the UE is completed, the AMF may decide whether to register the UE based on the rule.

It should be noted that, for the UE, the UE receives and stores the network usage rules of the first service, and uses the rules as one of the conditions for deciding whether to initiate a registration request based on the first service, for example, the UE is only in the network A registration request based on the first service is initiated within the limits of usage rules (for example, limited effective time, effective location, slice or DNN).

In the embodiment of this application, after the AMF obtains the network usage rules of the first service determined through negotiation, when the terminal device initiates a network registration process for the first service on the local network, the AMF may The network usage rules of a service control the registration process. Specifically, the UE initiates a registration request in the local network, and the registration request may include identification information of the target registration service (that is, the first service) (for example, the identification of the first service, the identification of the service type to which the first service belongs, the first identification of the service provider of the service, etc.). During the registration process, the AMF obtains the network usage rules of the target registration service through the first device, and determines the registration restrictions of the first service (such as effective time, effective location, slice information, etc.), and the AMF Registration limit, decide whether to accept the registration request. Wherein, when it is determined to accept the registration request and the terminal device is successfully registered, the AMF sends the obtained network usage rules of the target registration service to the UE through a registration acceptance message. Wherein, the AMF may also decide to maintain or release the registration state of the UE according to the obtained network usage rules. It should be noted that, in a possible implementation, when the network usage rules of the first service negotiated between the first device and the second device change, the first device may also update the network usage rules to the AMF, and then the AMF may According to the updated network usage rules, a decision is made to maintain or release the registration status of the UE.

Please refer to FIG. 10 . FIG. 10 is another schematic flowchart of a communication method provided by an embodiment of the present application. Figure 10 mainly describes that when the terminal device initiates a protocol data unit (protocol data unit, PDU) session establishment process pointing to the first service on the local network, the SMF can The session establishment process is controlled. As shown in Figure 10, the communication method includes the following steps S1001-S1002:

S1001. The SMF acquires a PDU session establishment request of a terminal device for a first service.

In some feasible implementation manners, the SMF acquires a PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service. Wherein, the identification information of the first service may include one or more of the identification of the first service, the identification of the service type to which the first service belongs, and the identification of the service provider of the first service, etc., which are not limited here.

S1002. The SMF determines whether to accept the PDU session establishment request of the terminal device according to the network usage rules corresponding to the first service.

In some feasible implementation manners, the SMF may determine whether to accept the PDU session establishment request of the terminal device according to the network usage rules corresponding to the first service. Wherein, when the SMF determines to accept the PDU session establishment request of the terminal device, the PDU session may be established according to the PDU session establishment request. Further, the SMF can also determine whether to deactivate the PDU session according to the network usage rules.

Optionally, the SMF may also send the network usage rules of the first service applied for by the UE to the UE, wherein, after receiving the policy control information of the first service, the UE may use the policy control information as a decision whether to initiate a PDU One of the conditions for a session establishment request.

The embodiment in FIG. 10 will be specifically described below in conjunction with specific examples.

For example, please refer to FIG. 11 , which is a schematic diagram of a PDU session establishment process provided by an embodiment of the present application. As shown in FIG. 11 , network elements involved in the PDU session establishment process include UE, (R)AN, AMF, UPF, SMF, first device, UDM and DN. It should be noted that the first device in FIG. 11 may be understood as a PCF. Among them, the description of the non-bold steps in Figure 11 can refer to the description of the relevant steps in Section 4.3.2.2.1 of the protocol TS 23.502, and will not be repeated here. The following mainly elaborates on the steps related to the above-mentioned Figure 10 in Figure 11, that is, describes the steps in bold in Figure 11:

In step 1, the UE initiates a PDU session establishment request (PDU Session Establishment Reguest) in the local network, and the PDU session establishment request includes the identification information of the first service pointed to by the PDU session, wherein the identification information of the first service includes DNN Combined with a slice, or the identifier of the first service, or the identifier of the service type to which the first service belongs, or the identifier of the service provider of the first service, etc.

In step 3a, the AMF forwards the identification information of the first service included in the PDU session establishment request to the SMF.

In step 5, when the network usage rules corresponding to the first service have been stored in the SMF, the SMF may directly decide whether to accept the PDU session request according to the locally stored network usage rules corresponding to the first service.

In step 7b, when the network usage rules corresponding to the first service are not stored in the SMF, the SMF needs to apply to the first device (ie PCF) for the network usage rules corresponding to the first service. Specifically, the SMF may send a policy control request of the first service to the first device through a subscription permanent identifier (subscription permanent identifier, SUPI) and the identification information of the first service carried in the PDU session request, and receive a response from the first device The policy control requests feedback policy control information of the first service, where the policy control information includes network usage rules corresponding to the first service. The network usage rules corresponding to the first service include the identification information of the first service, the valid terminal equipment of the first service, the valid time of the first service, the valid location of the first service, the QoS information of the first service, and the effective time of the first service. One or more of resource information, etc.

In step 11 and step 13, the SMF may decide whether to accept the PDU session establishment request according to the network usage rules of the first service included in the policy control information of the first service obtained from the first device. Further, the SMF may also send the policy control information of the first service to the UE through the NAS message, that is, forward the NAS message including the policy control information of the first service to the UE through the (R)AN. Understandably, if the SMF determines to accept the PDU session establishment request, it may establish the PDU session according to the PDU session establishment request. Further, the SMF may also decide whether to deactivate the PDU session based on the acquired network usage rules of the first service. For example, it is determined to deactivate the PDU session when the effective time of the first service expires, and/or exceeds the effective place limit. It should be noted that, the relevant description in step 11 here about acquiring policy control information from the first device to the network usage rules that carry the first service can be understood as equivalent to the above-mentioned sending of the first device to the relevant network element involved in FIG. 3 Send network usage rules.

That is to say, in the PDU session establishment process, the UE can initiate a PDU session establishment request pointing to the first service in the local network, and the SMF can obtain the network usage rules of the first service in the PDU session establishment process, so the subsequent SMF can be based on This rule determines whether to accept the UE's PDU session establishment request. Further, after the UE successfully establishes the PDU session, the SMF can also decide whether to release the PDU session based on the rule.

It should be noted that, for the UE, after receiving the policy control information including the network usage rules of the first service, the UE can use the policy control information as one of the conditions for deciding whether to initiate a PDU session establishment request, for example, the UE only A PDU session establishment request based on the first service is initiated within the limits of the network usage rules (for example, a limited effective time, effective location, slice or DNN).

In the embodiment of this application, after the SMF obtains the network usage rules of the first service determined through negotiation, when the terminal device initiates a PDU session establishment request pointing to the first service on the local network, the SMF can The network usage rules of the first service control the PDU session establishment request of the first service. Specifically, the UE initiates a PDU session establishment request in the local network, and the PDU session establishment request may include the identification information of the first service (for example, the identification of the first service, the identification of the service type to which the first service belongs, the service of the first service provider's logo, etc.). In the PDU session establishment process, the SMF obtains the network usage rules of the first service through the first device, and determines the PDU session restrictions (such as effective time, effective location, slice information, DNN, QoS information, etc.) ), the SMF decides whether to accept the PDU session establishment request according to the PDU session restriction of the first service. Wherein, when it is determined to accept the PDU session establishment request, and after the PDU session establishment is successful, the SMF sends the acquired network usage rules of the first service to the UE through a PDU session establishment message. Wherein, the SMF may also decide to maintain or release the PDU session of the UE according to the obtained network usage rules. It should be noted that, in a possible implementation, when the network usage rules of the first service negotiated between the first device and the second device change, the first device can update the network usage rules to the SMF, so the SMF can The updated network usage rule decides to keep or release the PDU session of the UE.

It should be noted that the schemes described in Figure 2, Figure 3, Figure 5, Figure 7, Figure 8 and Figure 10 above can be used as an embodiment alone, or can also be implemented with one or more of the embodiments of the present application Examples are combined and are not limited here. For example, the solution described in FIG. 2 can be combined with the solution described in FIG. 3, that is, after the first device determines the network usage rules of the first service based on the first request sent by the second device, the first device can further send the Relevant network elements of the first device (ie, other core network elements and access network devices) send the network usage rules of the first service, so that the relevant network elements reserve resources for the first service. As another example, the solutions described in Figures 2 and 3 can be combined with the solution described in Figure 5, that is, when the first device determines the network usage rules of the first service based on the first request sent by the second device, and the first device After sending the network usage rules of the first service to the relevant network elements of the first device (such as the fourth device), the fourth device may, based on the second request sent by the terminal device, within the limits of the network usage rules of the first service (such as (within the effective time of the first service, effective place, etc.) to feed back the identification information of the first service to the terminal device, so as to realize the discovery mechanism of the first service.

The communication device provided by the present application will be described in detail below with reference to FIGS. 12 to 13 .

Please refer to FIG. 12 . FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device shown in Figure 12 can be used to realize some or all functions of the first device in the embodiment corresponding to the above communication method, or the communication device shown in Figure 12 can be used to realize the function of the second device in the embodiment corresponding to the above communication method Part or all of the functions, or the communication device shown in Figure 12 can be used to realize part or all of the functions of the third device in the embodiment corresponding to the above communication method, or the communication device shown in Figure 12 can be used to realize the implementation corresponding to the above communication method Part or all of the functions of the fourth device in the example, or the communication device shown in FIG. 12 may be used to implement part or all of the functions of the access network device in the embodiment corresponding to the above communication method, or the communication device shown in FIG. Part or all of the functions of the terminal device in the embodiment corresponding to the above communication method are implemented. As shown in FIG. 12 , the device may include a processing unit 1202 and a transceiver unit 1201 . The transceiver unit 1201 may be used to implement corresponding communication functions. The transceiver unit 1201 can also be called a communication interface or a communication unit; the processing unit 1202 can be used to implement corresponding processing functions, such as determining network usage rules corresponding to the first service based on service requirement information. Optionally, the device further includes a storage unit (not shown in FIG. 12 ), which can be used to store instructions and/or data, and the processing unit 1202 can read instructions and/or data in the storage unit to The apparatus is made to implement actions of the first device or the second device or the third device or the fourth device or the access network device or the terminal device in the foregoing method embodiments.

In an embodiment, the communication device shown in FIG. 12 may be used to implement part or all of the functions of the first device in any of the method embodiments described in FIGS. 2 to 10 above. The device may be the first device, or a device in the first device, or a device that can be matched with the first device. Exemplarily, the first device may specifically be a PCF, AMF, SMF, UDM, or NF, etc., which is not limited here. Wherein, the communication device may also be a system on a chip. in:

The transceiver unit 1201 is configured to receive a first request from a second device, the first request is used to request a network usage rule of a first service, the first request carries service requirement information of the first service, the The first service is a service provided by the second device;

A processing unit 1202, configured to determine a network usage rule corresponding to the first service based on the service requirement information;

The transceiving unit 1201 is configured to send the network usage rule corresponding to the first service to the second device.

In a possible implementation, when determining the network usage rule corresponding to the first service based on the service requirement information, the processing unit 1202 is specifically configured to:

In a possible implementation, the service requirement information includes the terminal device requesting the first service to take effect; when determining the network usage rule corresponding to the first service based on the service requirement information, the The processing unit 1202 is specifically used for:

In a possible implementation, the transceiving unit 1201 is further configured to send the network usage rule corresponding to the first service to a third device.

In a possible implementation, the third device is an access network device; when sending the network usage rule corresponding to the first service to the third device, the transceiver unit 1201 is specifically configured to:

The transceiver unit 1201 is further configured to acquire a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The processing unit 1202 is further configured to determine whether to accept the registration request of the terminal device according to the network usage rules corresponding to the first service.

In a possible implementation, the processing unit 1202 is further configured to:

accepting the registration request of the terminal device;

The transceiver unit 1201 is further configured to acquire a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

The processing unit 1202 is further configured to determine whether to accept the PDU session establishment request of the terminal device according to the network usage rule corresponding to the first service.

In a possible implementation, the transceiving unit 1201 is further configured to send the network usage rule corresponding to the first service to the terminal device.

For a more detailed description of the foregoing transceiver unit 1201 and the processing unit 1202, reference may be made to the relevant description of the first device in the foregoing method embodiment, and no further description is given here.

In an embodiment, the communication device shown in FIG. 12 may be used to implement part or all of the functions of the second device in any of the method embodiments described in FIGS. 2 to 10 above. The device may be the second device, or a device in the second device, or a device that can be matched with the second device. Exemplarily, the second device may specifically be an application server or an AF corresponding to the service provider, etc., which is not limited here. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 12 may include a transceiver unit 1201 and a processing unit 1202, wherein:

The transceiver unit 1201 is configured to send a first request to a first device, the first request is used to request a network usage rule of a first service, the first request carries service requirement information of the first service, and the service The requirement information is used to determine a network usage rule corresponding to the first service, where the first service is a service provided by the second device;

The transceiving unit 1201 is further configured to receive a network usage rule corresponding to the first service from the first device.

For a more detailed description of the foregoing transceiver unit 1201 and the processing unit 1202, reference may be made to the relevant description of the second device in the foregoing method embodiment, and no further description is given here.

In an embodiment, the communication device shown in FIG. 12 may be used to implement part or all of the functions of the third device in any of the method embodiments described in FIGS. 2 to 10 above. The device may be the third device, or a device in the third device, or a device that can be matched with the third device. Exemplarily, the third device may specifically be an AMF, an SMF, a PCF, a UDM, or an access network device, etc., which is not limited herein. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 12 may include a transceiver unit 1201 and a processing unit 1202, wherein:

A transceiver unit 1201, configured to receive a network usage rule corresponding to the first service from the first device;

The processing unit 1202 is configured to reserve network resources for the first service based on the network usage rule corresponding to the first service.

In a possible implementation, the third device is an access network device; when receiving the network usage rule corresponding to the first service from the first device, the transceiver unit 1201 is specifically configured to:

accepting the registration request of the terminal device;

In a possible implementation, the third device is a session management function SMF; the processing unit 1202 is further configured to:

The transceiving unit 1201 is further configured to send a policy control request of the first service to the first device;

When receiving the network usage rule corresponding to the first service from the first device, the transceiver unit 1201 is further configured to:

In a possible implementation, the transceiver unit 1201 is also configured to:

For a more detailed description of the foregoing transceiver unit 1201 and processing unit 1202, reference may be made to the relevant description of the third device in the foregoing method embodiment, and no further description is given here.

In an embodiment, the communication device shown in FIG. 12 may be used to implement part or all of the functions of the fourth device in any one of the method embodiments described in FIGS. 2 to 10 above. The device may be the fourth device, or a device in the fourth device, or a device that can be matched with the fourth device. Exemplarily, the fourth device may specifically be an AMF or an access network device, etc., which is not limited here. Wherein, the communication device may also be a system on a chip. The communication device shown in Figure 12 may include a transceiver unit 1201 and a processing unit 1202, wherein:

a transceiver unit 1201, configured to receive a second request from a terminal device, where the second request is used to inquire about services supported by the network;

The transceiving unit 1201 is further configured to send the identification information of the first service supported by the network to the terminal device.

In a possible implementation, the transceiving unit 1201 is further configured to obtain the network usage rule corresponding to the first service, the network usage rule corresponding to the first service includes the effective time of the first service, and the The effective place of the above-mentioned first business;

When the fourth device sends the identification information of the first service supported by the network to the terminal device, the transceiving unit 1201 is further configured to:

In a possible implementation, the fourth device is an AMF;

The transceiving unit 1201 is further configured to obtain a network usage rule corresponding to the first service;

The processing unit 1202 is configured to determine whether to accept the registration request of the terminal device according to the network usage rule corresponding to the first service.

accepting the registration request of the terminal device;

In a possible implementation, the transceiver unit 1201 is also configured to:

For a more detailed description of the foregoing transceiver unit 1201 and the processing unit 1202, reference may be made to the relevant description of the fourth device in the foregoing method embodiment, and no further description is given here.

In an embodiment, the communication device shown in FIG. 12 may be used to implement part or all of the functions of the access network device in any of the method embodiments described in FIGS. 2 to 10 above. The device may be an access network device, or a device in the access network device, or a device that can be matched and used with the access network device. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 12 may include a transceiver unit 1201 and a processing unit 1202, wherein:

A processing unit 1202, configured to determine first information according to a network usage rule corresponding to the first service, where the first information includes identification information of the first service supported by the network;

The transceiving unit 1201 is further configured to send the first information to the terminal device.

When the first information is sent to the terminal device, the transceiver unit 1201 is specifically configured to:

For a more detailed description of the foregoing transceiver unit 1201 and processing unit 1202, reference may be made to the relevant description of the access network device in the foregoing method embodiment, and no further description is given here.

In an embodiment, the communication device shown in FIG. 12 may be used to implement some or all functions of the terminal device in any of the method embodiments described in FIGS. 2 to 10 above. The device may be a terminal device, or a device in the terminal device, or a device that can be matched with the terminal device. Wherein, the communication device may also be a system on a chip. The communication device shown in FIG. 12 may include a transceiver unit 1201 and a processing unit 1202, wherein:

The transceiver unit 1201 is configured to receive a network usage rule corresponding to the first service, where the network usage rule corresponding to the first service includes the effective time of the request for the first service and the effective location of the request for the first service;

The transceiving unit 1201 is further configured to send a registration request or a PDU session establishment request of the first service at the effective time of the first service and within the effective location of the first service.

In a possible implementation, the transceiver unit 1201 is also configured to:

In a possible implementation, the fourth device is a terminal device, the second request is carried in the first radio resource control RRC signaling, and the identification information of the first service supported by the network is carried in the second RRC signaling.

In a possible implementation, the transceiver unit 1201 is also configured to:

Receive first information from the terminal device, where the first information includes identification information of the first service supported by the network.

In a possible implementation, the transceiver unit 1201 is also configured to:

When receiving the first information from the terminal device, the transceiver unit 1201 is further configured to:

The first information from the terminal device is received at the effective time of the first service and within the range of the effective location of the first service.

For a more detailed description of the foregoing transceiver unit 1201 and processing unit 1202, reference may be made to the relevant description of the terminal device in the foregoing method embodiment, and no further description is given here.

Please refer to FIG. 13 . FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device includes a processor 1310 and an interface circuit 1320. The processor 1310 and the interface circuit 1320 are coupled to each other. It can be understood that the interface circuit 1320 may be a transceiver or an input/output interface. Optionally, the communication device may further include a memory 1330 for storing instructions executed by the processor 1310 or storing input data required by the processor 1310 to execute the instructions or storing data generated after the processor 1310 executes the instructions.

When the communication device is used to implement the methods in the above method embodiments, the processor 1310 is used to execute the functions of the processing unit 1202 , and the interface circuit 1320 is used to execute the functions of the transceiver unit 1201 .

When the above communication device is a chip applied to the first device, the first device chip implements the functions of the first device in the above method embodiment, and the first device chip receives information from other network elements; or, the first device chip Send information to other entities.

When the above-mentioned communication device is a chip applied to the second device, the chip of the second device implements the functions of the second device in the method embodiment above. The second device chip receives information from other network elements (or entities); or, the second device chip sends information to other network elements (or entities).

When the above communication device is a chip applied to a third device, the third device chip implements the functions of the third device in the above method embodiment, and the third device chip receives information from other network elements; or, the third device chip Send information to other entities.

When the above communication device is a chip applied to the fourth device, the fourth device chip implements the functions of the fourth device in the above method embodiment, and the fourth device chip receives information from other network elements; or, the fourth device chip Send information to other entities.

When the above communication device is a chip applied to access network equipment, the access network equipment chip implements the functions of the access network equipment in the above method embodiment, and the access network equipment chip receives information from other network elements; or, the access network equipment chip receives information from other network elements; Access network device chips send information to other entities.

When the above communication device is a chip applied to terminal equipment, the terminal equipment chip implements the functions of the terminal equipment in the above method embodiments, and the terminal equipment chip receives information from other network elements; or, the terminal equipment chip sends information to other entities .

It can be understood that the processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor can be a microprocessor, or any conventional processor.

The method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (random access memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (programmable ROM) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or known in the art any other form of storage medium. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be located in the ASIC. In addition, the ASIC may be located in the access network device or the terminal device. Certainly, the processor and the storage medium may also exist as discrete components in the first device or the second device or the third device or the fourth device or the access network device or the terminal device.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer program or instructions may be stored in or transmitted via a computer-readable storage medium. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server integrating one or more available media. Described usable medium can be magnetic medium, for example, floppy disk, hard disk, magnetic tape; It can also be optical medium, for example, digital versatile disc (digital versatile disc, DVD); It can also be semiconductor medium, for example, solid state drive (solid state drive) , SSD).

In each embodiment of the present application, if there is no special explanation and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

It can be understood that the various numbers involved in the embodiments of the present application are only for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial numbers of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic.

The embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed, the first device or the second device or the The method performed by the third device or the fourth device or the access network device or the terminal device is implemented.

The embodiment of the present application also provides a computer program product. The computer program product includes a computer program. When the computer program is executed, the first device or the second device or the third device or the fourth device or A method performed by an access network device or a terminal device is implemented.

An embodiment of the present application further provides a communication system, where the communication system includes a first device or a second device or a third device or a fourth device or an access network device or a terminal device. Wherein, the first device is configured to execute the method executed by the first device in the foregoing method embodiments. The second device is configured to execute the method executed by the second device in the foregoing method embodiments. The third device is configured to execute the method executed by the third device in the foregoing method embodiments. The fourth device is configured to execute the method executed by the fourth device in the foregoing method embodiments. The access network device is configured to execute the methods performed by the access network device in the foregoing method embodiments. The terminal device is configured to execute the methods performed by the terminal device in the foregoing method embodiments.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Depending on the application, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by this application.

The descriptions of the various embodiments provided in this application can refer to each other, and the descriptions of each embodiment have their own emphases. For the parts that are not described in detail in a certain embodiment, you can refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, regarding the functions of the devices and equipment and the executed steps provided by the embodiments of the present application, reference may be made to the relevant descriptions of the method embodiments of the present application. May be cross-referenced, combined or cited.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims

A communication method, characterized in that, comprising:

The first device receives a first request from the second device, the first request is used to request the network usage rules of the first service, the first request carries service requirement information of the first service, and the first service services provided for the second device;

The first device determines a network usage rule corresponding to the first service based on the service requirement information;

The first device sends the network usage rule corresponding to the first service to the second device.
The method according to claim 1, wherein the determining the network usage rules corresponding to the first service based on the service demand information includes:

The first device determines the network usage rule corresponding to the first service based on the service requirement information and the local network usage rule.
The method according to claim 1 or 2, wherein the business requirement information includes one or more of the following information:

The identification information of the first service, the terminal device where the request for the first service becomes effective, the time when the request for the first service becomes effective, the place where the request for the first service becomes effective, and the requested quality of service (QoS) for the first service , the requested resource of the first service;

The network usage rules corresponding to the first service include one or more of the following:

The identification information of the first service, the effective terminal device of the first service, the effective time of the first service, the effective place of the first service, the QoS information of the first service, the first Resource information for your business.
The method according to claim 1, wherein the service requirement information includes a terminal device requesting the first service to take effect; and determining the network usage rule corresponding to the first service based on the service requirement information ,include:

The first device acquires the subscription information associated with the requesting valid terminal device;

The first device determines the network usage rule corresponding to the first service based on the service requirement information and the subscription information associated with the terminal device requesting validation.
The method according to claim 4, wherein the subscription information associated with the terminal device requesting validation includes at least one of the following subscription information:

Data network name DNN subscription information, slice subscription information, and subscription information of the first service.
The method according to claim 5, wherein the subscription information of the first service includes at least one of the following information:

Identification information of the first service, effective location information of the first service, effective time information of the first service, and QoS information of the first service.
The method according to claim 3, wherein the resource information of the first service includes one or more of the following: bandwidth resource, maximum number of users, and network load threshold.
The method according to any one of claims 1-7, wherein the method further comprises:

The first device sends the network usage rule corresponding to the first service to the third device.
The method according to claim 8, wherein the third device is an access network device; and sending the network usage rules corresponding to the first service to the third device includes:

The first device sends an N2 message to the third device, where the N2 message includes a network usage rule corresponding to the first service.
The method according to any one of claims 1-8, wherein the first device is an Access and Mobility Management Function (AMF); the method further comprises:

The first device acquires a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The first device determines whether to accept the registration request of the terminal device according to a network usage rule corresponding to the first service.
The method according to claim 10, characterized in that the method further comprises:

The first device accepts the registration request of the terminal device;

The first device determines whether to deregister the terminal device according to the network use rule corresponding to the first service.
The method according to any one of claims 1-8, wherein the first device is a session management function SMF; the method further includes:

The first device acquires a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

The first device determines whether to accept the PDU session establishment request of the terminal device according to a network usage rule corresponding to the first service.
The method according to claim 12, characterized in that the method further comprises:

The first device accepts the PDU session establishment request of the terminal device, and establishes a PDU session according to the PDU session establishment request;

The first device determines whether to deactivate the PDU session according to the network usage rule.
The method according to any one of claims 10-13, characterized in that the method further comprises:

The first device sends the network usage rule corresponding to the first service to the terminal device.
A communication method, characterized in that, comprising:

The second device sends a first request to the first device, the first request is used to request a network usage rule of the first service, the first request carries service requirement information of the first service, and the service requirement information is used For determining a network usage rule corresponding to the first service, the first service is a service provided by the second device;

The second device receives the network usage rule corresponding to the first service from the first device.
The method according to claim 15, wherein the business requirement information includes one or more of the following information:

The identification information of the first service, the terminal device where the request for the first service becomes effective, the time when the request for the first service becomes effective, the place where the request for the first service becomes effective, and the requested quality of service (QoS) for the first service , the requested resource of the first service;

The network usage rules corresponding to the first service include one or more of the following:

The identification information of the first service, the effective terminal device of the first service, the effective time of the first service, the effective place of the first service, the QoS information of the first service, the first Resource information for your business.
The method according to claim 16, wherein the resource information of the first service includes one or more of the following: bandwidth resource, maximum number of users, and network load threshold.
A communication method, characterized in that, comprising:

The third device receives a network usage rule corresponding to the first service from the first device;

The third device reserves network resources for the first service based on the network usage rule corresponding to the first service.
The method according to claim 18, wherein the third device is an access network device; and receiving the network usage rules corresponding to the first service from the first device comprises:

The third device receives an N2 message from the first device, where the N2 message includes a network usage rule corresponding to the first service.
The method according to claim 18, wherein the third device is an Access and Mobility Management Function (AMF); the method further comprises:

The third device acquires a terminal device's registration request for the first service, where the registration request includes identification information of the first service;

The third device determines whether to accept the registration request of the terminal device according to the network usage rule corresponding to the first service.
The method according to claim 20, further comprising:

The third device accepts the registration request of the terminal device;

The third device determines whether to deregister the terminal device according to the network use rule corresponding to the first service.
The method according to claim 18, wherein the third device is a session management function (SMF); the method further comprises:

The third device acquires a protocol data unit PDU session establishment request of the terminal device for the first service, where the PDU session establishment request includes identification information of the first service;

The third device determines whether to accept the PDU session establishment request of the terminal device according to the network usage rule corresponding to the first service.
The method according to claim 22, further comprising:

The third device accepts the PDU session establishment request of the terminal device, and establishes a PDU session according to the PDU session establishment request;

The third device determines whether to deactivate the PDU session according to the network usage rule.
The method according to claim 22 or 23, wherein the first device is a policy control function PCF; the method further comprises:

sending, by the third device, a policy control request for the first service to the first device;

The receiving the network usage rule corresponding to the first service from the first device includes:

The third device receives policy control information sent by the first device in response to the policy control request, where the policy control information includes network usage rules corresponding to the first service.
The method according to any one of claims 20-24, characterized in that the method further comprises:

The third device sends the network usage rule corresponding to the first service to the terminal device.
A communication device, characterized by comprising a unit or module for performing the method according to any one of claims 1-25.
A communication device, characterized in that it includes a processor and a transceiver, the processor and the transceiver are used to execute at least one computer program or instruction stored in a memory, so that the device implements claims 1-25 any of the methods described.
A computer-readable storage medium, characterized in that computer programs or instructions are stored in the storage medium, and when the computer programs or instructions are executed by a computer, the method described in any one of claims 1-25 is realized. method.
A computer program product, characterized in that the computer program product includes computer program code, and when the computer program code is run on a computer, the method according to any one of claims 1-10 is implemented.
A communication system, characterized by comprising at least one of a first device, a second device, and a third device;

The first device comprises a unit or module for performing the method of any one of claims 1-14, and the second device comprises a unit or module for performing the method of any one of claims 15-17 module, the third device includes a unit or module for performing the method according to any one of claims 18-25.