CN-115918240-B - Communication method and network device

Abstract

The application provides a communication method and a communication device, wherein the method comprises the steps that a session management function network element obtains an interface identifier, the session management function network element sends an address of a user plane function network element and the interface identifier to a first network element, the interface identifier is used for the first network element to determine an interface corresponding to the interface identifier, and the interface corresponding to the address of the user plane function network element and the interface identifier is used for the first network element to control the user plane function network element. In the communication method of the embodiment of the application, the UPF can realize that other types of control surface network elements which are not SMF types control the UPF network elements, and the UPF network elements can operate in an isolated mode based on different configurations of the SMF network elements and other network elements and process the same message in parallel, thereby realizing that the same UPF network elements are controlled by multiple types of controllers.

Inventors

• ZHOU RUNZE

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20210114

Claims (20)

1. 1. A method of communication, comprising: the session management function network element obtains an interface identifier; the session management function network element sends an address of a user plane function network element and the interface identifier to a first network element, the interface identifier is used for the first network element to determine an interface corresponding to the interface identifier, the address is used for the first network element to send a message detection rule and a message processing rule corresponding to the first network element to the user plane function network element, the interface corresponding to the interface identifier corresponds to the first network element, and the interface corresponding to the interface identifier, the message detection rule and the message processing rule are used for the first network element to control the user plane function network element.
2. 2. The method of claim 1, wherein the method further comprises: and the session management function network element sends first information to the user plane function network element, wherein the first information is used for indicating the user plane function network element to allocate the interface identifier.
3. 3. The method according to claim 1 or 2, wherein the session management function network element obtains an interface identifier, comprising: the session management function network element receives the interface identification from the user plane function network element.
4. 4. The method of claim 1, wherein the method further comprises: and the session management function network element sends the interface identifier to the user plane function network element.
5. 5. The method of claim 1 or 2, wherein the method further comprises: the session management function network element receives capability indication information from the user plane function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by a first type network element, and the first type network element is a non-session management function type network element.
6. 6. The method of claim 1 or 2, wherein the method further comprises: the session management function network element receives a request message from the first network element, where the request message is used to request to control the user plane function network element.
7. 7. The method of claim 6, wherein the request message includes at least one of an identification of the user plane function network element, a service area, and a session identification of a user equipment.
8. 8. A method of communication, comprising: The method comprises the steps that a user plane function network element receives a message detection rule and a message processing rule corresponding to a first network element from the first network element, wherein the first network element is a non-session management function type network element; the user plane function network element receives a message through an interface corresponding to the first network element; The user plane function network element detects the message according to the message detection rule and processes the message according to the message processing rule.
9. 9. The method of claim 8, wherein the method further comprises: the user plane function network element receives first information from the session management function network element, wherein the first information is used for indicating the user plane function network element to allocate the interface identifier of the interface.
10. 10. The method of claim 8 or 9, wherein the method further comprises: and the user plane function network element sends the interface identification of the interface to the session management function network element.
11. 11. The method of claim 8, wherein the method further comprises: The user plane function network element receives an interface identification of the interface from the session management function network element.
12. 12. The method of claim 8 or 9, wherein the method further comprises: The user plane function network element sends capability indication information to the session management function network element, wherein the capability indication information is used for indicating that the user plane function network element can be controlled by a first type network element, and the first type network element is a non-session management function type network element.
13. 13. A method of communication, comprising: the first network element receives the address and the interface identifier of the user plane function network element from the session management function network element; The first network element determines an interface corresponding to the interface identifier according to the interface identifier, and the interface corresponding to the interface identifier corresponds to the first network element; The first network element sends a message detection rule and a message processing rule corresponding to the first network element to the user plane function network element based on the address, wherein the first network element is a network element of a non-session management function type; the first network element controls the user plane function network element based on the interface corresponding to the interface identifier, the message detection rule and the message processing rule.
14. 14. The method of claim 13, wherein the method further comprises: the first network element sends a request message to the session management function network element, where the request message is used to request the first network element to control the user plane function network element.
15. 15. The method of claim 14, wherein the request message includes at least one of the following information: And the user plane function network element identifier, the service area and the user equipment session identifier.
16. 16. A network device, comprising: The processing unit is used for acquiring the interface identification; The receiving and transmitting unit is configured to send an address of a user plane function network element and the interface identifier to a first network element, where the interface identifier is used by the first network element to determine an interface corresponding to the interface identifier, the address is used by the first network element to send a message detection rule and a message processing rule corresponding to the first network element to the user plane function network element, the interface corresponding to the interface identifier corresponds to the first network element, and the interface corresponding to the interface identifier, the message detection rule and the message processing rule are used by the first network element to control the user plane function network element.
17. 17. The network device of claim 16, The transceiver unit is further configured to send first information to the user plane function network element, where the first information is used to instruct the user plane function network element to allocate the interface identifier.
18. 18. The network device of claim 16 or 17, The processing unit is configured to receive, through the transceiver unit, the interface identifier from the user plane function network element.
19. 19. The network device of claim 16, The receiving and transmitting unit is further configured to send the interface identifier to the user plane function network element.
20. 20. The network device of claim 16 or 17, The transceiver unit is further configured to receive capability indication information from the user plane function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by a first type network element, and the first type network element is a network element of a non-session management function type.

Description

Communication method and network device Technical Field The present application relates to the field of communications, and more particularly, to a communication method and a network device. Background Currently, in a service-based architecture (Service Based Architecture, SBA), there are and only session management functions (Session Management Function, SMF) network elements that can control user plane functions (User Plane Function, UPF) network elements. For example, the SMF network element may control the UPF network element through the N4 interface, and other network elements may control the UPF network element through the SMF network element transfer. With the evolution of the fifth generation (the 5th Generation,5G) network, the UPF is also gradually powerful, such as it can make user traffic status analysis, including whether traffic is abnormal, whether the extent of delay change caused by network congestion is severe, whether the delay meets the traffic experience, etc. These functions can meet the requirements of network data analysis function (NetWork DATA ANALYTICS Funtion, NWDAF) network elements and are perceived in real time, whereas current NWDAF network elements cannot directly control UPF network elements. Therefore, the above technology cannot well satisfy the realization of the UPF network element function, how to enable a non-SMF type network element to control the UPF network element, and how to isolate the configuration of the SMF network element and other types of network elements by the UPF network element become the problems to be solved. Disclosure of Invention The application provides a communication method and network equipment, which can realize that other network elements of a non-SMF type control UPF network elements, and the UPF network elements can operate in an isolated mode based on different configurations of the SMF network elements and other network elements, and process the same message in parallel, so that a plurality of types of controllers can control the same UPF network elements. In a first aspect, a communication method is provided, which includes that a session management function network element obtains an interface identifier, the session management function network element sends an address of a user plane function network element and the interface identifier to a first network element, the interface identifier is used for the first network element to determine an interface corresponding to the interface identifier, and the address of the user plane function network element and the interface corresponding to the interface identifier are used for the first network element to control the user plane function network element. It should be understood that the interface corresponding to the interface identifier is a newly added message interface of the user plane function network element, and includes a message outlet and/or a message inlet. According to the scheme provided by the application, the session management function network element can control the user plane function network element through the interface corresponding to the address and the interface identifier of the user plane function network element by acquiring the interface identifier and sending the address of the user plane function network element and the interface identifier to the first network element. Meanwhile, the user plane function network element can operate in an isolated mode based on different configurations of the session management function network element and other types of network elements, and the same message is processed in parallel, so that the user plane function network element is controlled by the multi-type controller. With reference to the first aspect, in some implementations of the first aspect, the session management function network element sends first information to the user plane function network element, where the first information is used to instruct the user plane function network element to allocate the interface identifier. With reference to the first aspect, in certain implementation manners of the first aspect, the session management function network element obtains an interface identifier, including that the session management function network element receives the interface identifier from the user plane function network element. With reference to the first aspect, in certain implementation manners of the first aspect, the session management function network element sends the interface identifier to the user plane function network element. Optionally, the session management function network element receives capability indication information from the user plane function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by a network element of a first type, and the network element of the first type is a network element except for the session management function type.