CN-122002435-A - Link selection method, device and storage medium

Abstract

The embodiment of the disclosure provides a link selection method, a device and a storage medium, which relate to the technical field of communication and at least enable core network equipment to select a proper transmission link and/or a transmission system to communicate with UE. The method comprises the steps of sending configuration information of access network auxiliary information to access network equipment, receiving the access network auxiliary information from the access network equipment, wherein the access network auxiliary information is used for determining a transmission link and/or a transmission mode adopted when data transmission is carried out with User Equipment (UE) by the core network equipment.

Inventors

• LUO WEI
• QI TAO
• CHEN LIN

Assignees

• 中兴通讯股份有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (20)

1. 1. A method of link selection, for use with a core network device, the method comprising: Sending configuration information of the access network auxiliary information to the access network equipment; and receiving access network auxiliary information from access network equipment, wherein the access network auxiliary information is used for the core network equipment to determine a transmission link and/or a transmission format adopted when the core network equipment performs data transmission with User Equipment (UE).
2. 2. The method of claim 1, wherein the configuration information comprises at least one of: Request information for access network auxiliary information; Reporting the frequency/period; And reporting a trigger event.
3. 3. The method of claim 2, wherein the reporting trigger event comprises at least one of: The result of the measurement or resource statistics is greater than a first threshold; The result of the measurement or resource statistics is less than a second threshold; the magnitude of the change is greater than a third threshold for the result of the measurement or resource statistic compared to the last result.
4. 4. The method of claim 2, wherein the configuration information is further used to indicate: granularity at which measurements or resource statistics are made, the granularity comprising at least one of: a cell; Slicing the network; Priority of the packet; The type of package; A transmission link; Transmission system.
5. 5. The method of claim 4, wherein the access network assistance information further comprises: Cell identification; Network slice identification; A priority identification of the packet; A type identifier of the packet; transmitting a link identifier; Transmitting a system identifier; Wireless resource usage; Packet transmission delay between UE and access network device.
6. 6. The method of claim 2, wherein the configuration information further comprises: and the first indication information is used for transmitting the transmission tunnel of the access network auxiliary information.
7. 7. The method of claim 6, wherein the transport tunnel is associated with a protocol data unit, PDU, session.
8. 8. The method of claim 7, wherein the first indication information of the transport tunnel comprises at least one of: User plane transport layer information associated with the PDU session; General packet radio service tunneling protocol GTP tunnel information.
9. 9. The method of claim 1, wherein prior to sending configuration information for the assistance information to the access network device, the method further comprises: Transmitting second indication information of the transmission tunnel, wherein the second indication information comprises at least one of the following: Establishing request information of the transmission tunnel; Updating the request information of the transmission tunnel; An identification of the access network device; the identification of the core network equipment; an identification of the established transmission tunnel; The updated identification of the transport tunnel; An identification of the transport tunnel type; the transmission tunnel is used for transmitting the configuration information and/or the access network auxiliary information.
10. 10. The method of claim 9, wherein the transport tunnel is independent of a particular PDU session.
11. 11. The method of claim 1, wherein the access network assistance information is carried in a GTP-U header.
12. 12. The method of claim 1, wherein the transmission link comprises at least one of: 4G air interface link; a 5G air interface link; 6G air interface link.
13. 13. The method of claim 1, wherein the transmission scheme comprises at least one of: A 4G radio access technology, RAT; 5G RAT; 6G RAT。
14. 14. The method according to claim 1, wherein the method further comprises: transmitting link information to the access network device, the link information being used to indicate a transmission path adopted when the core network device performs data transmission with the UE, or Transmitting transmission format information to the access network device, wherein the transmission format information is used for indicating a transmission format adopted when the core network device and the UE perform data transmission, or The cell information is used for indicating a wireless cell through which the core network equipment and the UE pass when transmitting data; The transmission path comprises a transmission link between the UE and the access network equipment and/or a transmission link between the access network equipment and the core network equipment.
15. 15. The method of claim 14, wherein the method further comprises: Transmitting link stop transmission indication information to the access network equipment, wherein the link stop transmission is used for indicating to stop using the transmission path associated with the link for data transmission, or And sending a standard stop transmission indication message to the access network equipment, wherein the standard stop transmission is used for indicating to stop using the standard to carry out data transmission.
16. 16. The method according to claim 14 or 15, wherein the data transmission comprises: Transmission of data streams associated with indicated quality of service QoS flow identification, or Transmission of data streams associated with indicated packet priorities, or Transmission of a data stream associated with the indicated packet type.
17. 17. The method according to claim 1, wherein the method further comprises: and communicating with the UE based on the transmission link and/or the transmission system.
18. 18. A method of link selection for use with an access network device, the method comprising: Receiving configuration information of access network auxiliary information from core network equipment; And sending access network auxiliary information to the core network equipment based on the configuration information, wherein the access network auxiliary information is used for enabling the core network equipment to determine a transmission link and/or a transmission mode adopted when the core network equipment performs data transmission with the UE.
19. 19. The method of claim 18, wherein the configuration information comprises at least one of: Request information for access network auxiliary information; Reporting the frequency/period; And reporting a trigger event.
20. 20. The method of claim 19, wherein the reporting trigger event comprises at least one of: The result of the measurement or resource statistics is greater than a first threshold; The result of the measurement or resource statistics is less than a second threshold; the magnitude of the change is greater than a third threshold for the result of the measurement or resource statistic compared to the last result.

Description

Link selection method, device and storage medium Technical Field The disclosure relates to the field of communication technologies, and in particular, to a link selection method, a device and a storage medium. Background As the number of digital data applications and services continues to proliferate, the demands and challenges on network resources and operators will continue to increase. Various network performance features that are capable of providing future service needs are one of the major technical challenges facing today's service providers. The performance requirements of the network mainly include aspects of data rate, delay, quality of service, security, availability, etc. of the connection, all of which are service-specific. The 5G network system introduced by the third generation partnership project (3rd generation partnership project,3GPP) will also continue to evolve towards the 6G network system and even higher versions, but the alternation of network versions is not on the fly, and coexistence of multiple systems will also be long-lived. Therefore, in the case of such multi-mode coexistence, when the UE can establish communication with the core network through multiple air interface links, how to select an appropriate air interface link to perform data transmission with the UE by the core network is a problem to be solved. Disclosure of Invention The embodiment of the disclosure provides a link selection method, a device and a storage medium, which at least can enable core network equipment to select a proper transmission link and/or a transmission mode to communicate with UE. In one aspect, a link selection method is provided, applied to a core network device, and the method includes: Sending configuration information of the access network auxiliary information to the access network equipment; And the access network auxiliary information is used for the core network equipment to determine a transmission link and/or a transmission mode adopted when the core network equipment performs data transmission with the User Equipment (UE). In yet another aspect, a link selection method is provided, applied to an access network device, and the method includes: Receiving configuration information of access network auxiliary information from core network equipment; And the access network auxiliary information is used for enabling the core network equipment to determine a transmission link and/or a transmission mode adopted when the core network equipment performs data transmission with the UE. In yet another aspect, a link selection method is provided, applied to a UE, the method including: stopping data transmission using link after receiving link stop transmission instruction information from core network equipment or access network equipment, or After receiving the system stop transmission instruction information from the core network equipment or the access network equipment, stopping using the system to transmit data; wherein the data transmission includes: transmission of data flows associated with indicated QoS flow identification, or Transmission of data streams associated with indicated packet priorities, or Transmission of a data stream associated with the indicated packet type. In yet another aspect, a communication device is provided that includes a transmitting module and a receiving module. The system comprises a sending module, a receiving module and a core network device, wherein the sending module is used for sending configuration information of access network auxiliary information to the access network device, the receiving module is used for receiving the access network auxiliary information from the access network device, and the access network auxiliary information is used for determining a transmission link and/or a transmission system adopted when the core network device carries out data transmission with User Equipment (UE). In yet another aspect, a communication device is provided that includes a receiving module and a transmitting module. The system comprises a receiving module, a sending module and an access network auxiliary information sending module, wherein the receiving module is used for receiving configuration information of the access network auxiliary information from the core network equipment, the sending module is used for sending the access network auxiliary information to the core network equipment based on the configuration information, and the access network auxiliary information is used for enabling the core network equipment to determine a transmission link and/or a transmission system adopted when data transmission is carried out with the UE. In yet another aspect, a communication device is provided that includes a receiving module. The receiving module is used for stopping using the link to perform data transmission after receiving the link stop transmission indication information from the core network equipment or the access network equipment, or stopping