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CN-122028193-A - Session management method, session management device, communication equipment and storage medium

CN122028193ACN 122028193 ACN122028193 ACN 122028193ACN-122028193-A

Abstract

The present application relates to the field of wireless communications technologies, and in particular, to a session management method, a session management device, a communication device, and a storage medium. The method comprises the steps of establishing connection between the UE and the UPF network element through access equipment on the non-3 GPP side under a simplified multi-access architecture, sending data forwarding parameters on the non-3 GPP side to the SMF network element, acquiring data forwarding rules sent by the SMF network element, wherein the data forwarding rules are determined based on the data forwarding parameters, and sending downlink data streams according to the data forwarding rules. The application realizes that the SMF network element can timely acquire the connection condition between the UE and the UPF network element under the condition that the UE and the UPF network element are connected through the access equipment on the non-3 GPP side, thereby preventing the subsequent downlink data stream sending process from being influenced.

Inventors

  • LU WEI
  • LIU HAI

Assignees

  • 中国电信股份有限公司技术创新中心
  • 中国电信股份有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (20)

  1. 1. A session management method, applied to a user plane function UPF network element, the method comprising: Under a simplified multi-access architecture, after connection is established between User Equipment (UE) and a UPF network element through access equipment on a non-third generation partnership project (3 GPP) side, data forwarding parameters on the non-3 GPP side are sent to a Session Management Function (SMF) network element; Acquiring a data forwarding rule sent by an SMF network element, wherein the data forwarding rule is determined based on the data forwarding parameter; And sending the downlink data stream according to the data forwarding rule.
  2. 2. The method of claim 1, wherein the data forwarding parameters include address information of a non-3 GPP access device.
  3. 3. The method of claim 1, wherein the data forwarding rule comprises address information of a non-3 GPP access device.
  4. 4. The method of claim 1, wherein the data forwarding parameter includes connection information corresponding to the connection.
  5. 5. The method of claim 1, wherein the data forwarding rule comprises transmitting connection information for a downstream data stream.
  6. 6. The method according to claim 4 or 5, wherein, in case the connection is a multipath transport protocol MPQUIC connection, the connection information corresponding to the connection comprises a connection identity.
  7. 7. A method according to claim 4 or 5, wherein in case the connection is an internet security protocol IPSec connection, the connection information corresponding to the connection comprises a sub-security association identity.
  8. 8. The method of claim 1, wherein the data forwarding rule includes indication information indicating that a downstream data stream is to be sent over a connection on a non-3 GPP side.
  9. 9. The method of claim 8, wherein the indication information is determined by the SMF network element if it is determined that the UE-initiated protocol data unit, PDU, session is a PDU session in the reduced multiple access architecture.
  10. 10. The method according to any of claims 1-5, wherein the sending data forwarding parameters of the non-3 GPP side to the SMF network element comprises: And sending an N4 report to the SMF network element, wherein the N4 report carries data forwarding parameters of a non-3 GPP side.
  11. 11. The method according to any of claims 1-5, wherein the simplified multi-access architecture refers to a network architecture in which data flows are transmitted on the non-3 GPP access side and control signaling for PDU sessions is transmitted on the 3GPP side.
  12. 12. A session management method, applied to an SMF network element, the method comprising: Receiving data forwarding parameters of a non-3 GPP side sent by a UPF network element, wherein the data forwarding parameters are sent by the UPF network element after the UE and the UPF network element are connected through access equipment of the non-3 GPP side under a simplified multi-access architecture; And transmitting a data forwarding rule to the UPF network element based on the data forwarding parameter so that the UPF network element transmits a downlink data stream based on the data forwarding rule.
  13. 13. The method of claim 12, wherein the data forwarding parameters include address information of a non-3 GPP access device.
  14. 14. The method of claim 12, wherein the data forwarding rule comprises address information of a non-3 GPP access device.
  15. 15. The method of claim 12, wherein the data forwarding parameter includes connection information corresponding to the user plane connection.
  16. 16. The method of claim 12, wherein the data forwarding rule includes transmitting connection information corresponding to a downstream data stream.
  17. 17. The method according to claim 15 or 16, wherein in case the connection is a MPQUIC connection, the connection information corresponding to the connection comprises a connection identification.
  18. 18. A method according to claim 15 or 16, wherein in case the connection is an IPSec connection, the connection information corresponding to the connection comprises a sub-security association identity.
  19. 19. The method of claim 12, wherein the data forwarding rule includes indication information indicating that a data stream is sent to the UE through a user plane transmission channel on a non-3 GPP side.
  20. 20. The method of claim 19, wherein the method further comprises: and determining the indication information under the condition that the PDU session initiated by the UE is determined to be the PDU session under the simplified multi-access architecture.

Description

Session management method, session management device, communication equipment and storage medium Technical Field The present application relates to the field of wireless communications technologies, and in particular, to a session management method, a session management device, a communication device, and a storage medium. Background The user equipment may access the UPF (User Datagram Protocol ) simultaneously through a 3GPP (3 rd Generation Partnership Project, third generation partnership project) access technology and a Non-3GPP (Non-3 GPP, non-third generation partnership project) access technology, using a MPQUIC (multipath transmission protocol) protocol or an IPSec protocol to implement the connection with the network side. However, in the simplified multi-access architecture, the signaling connection between the ue and the core network is performed at the 3GPP access side, so if the ue and the UPF network element establish a user plane connection through the access device at the non-3 GPP side, the core network side device may not be able to perceive the connection establishment procedure of the user plane and determine the downlink forwarding rule of the data flow, thereby affecting the smooth transmission of the downlink data flow. Disclosure of Invention In view of the foregoing, it is desirable to provide a session management method, apparatus, communication device, and storage medium capable of ensuring smooth transmission of downstream. In a first aspect, the present application provides a session management method, applied to a UPF network element, where the method includes: under a simplified multi-access architecture, after connection is established between UE and UPF network element through access equipment at non-3 GPP side, data forwarding parameters at non-3 GPP side are sent to SMF network element; Acquiring a data forwarding rule sent by an SMF network element, wherein the data forwarding rule is determined based on the data forwarding parameter; And sending the downlink data stream according to the data forwarding rule. In one embodiment, the data forwarding parameter includes address information of a non-3 GPP access device. In one embodiment, the data forwarding rule includes address information of a non-3 GPP access device. In one embodiment, the data forwarding parameter includes connection information corresponding to the connection. In one embodiment, the data forwarding rule includes connection information for transmitting downstream data. In one embodiment, in the case that the connection is MPQUIC connections, the connection information corresponding to the connection includes a connection identifier. In one of the embodiments of the present invention, In one embodiment, in the case that the connection is an IPSec connection, the connection information corresponding to the connection includes a sub-security association identifier. In one embodiment, the data forwarding rule includes indication information, where the indication information is used to indicate that a downlink data stream is sent through a connection on a non-3 GPP side. In one embodiment, the indication information is determined by the SMF network element in case of determining that the UE-initiated protocol data unit, PDU, session is a PDU session in the reduced multi-access architecture. In one embodiment, the sending the data forwarding parameters of the non-3 GPP side to the SMF network element includes: And sending an N4 report to the SMF network element, wherein the N4 report carries data forwarding parameters of a non-3 GPP side. In one embodiment, the simplified multi-access architecture refers to a network architecture in which a data flow is transmitted on the non-3 GPP access side and control signaling for PDU sessions is transmitted on the 3GPP side. In a second aspect, the present application provides a session management method, applied to an SMF network element, the method comprising: Receiving data forwarding parameters of a non-3 GPP side sent by a UPF network element, wherein the data forwarding parameters are sent by the UPF network element after the UE and the UPF network element are connected through access equipment of the non-3 GPP side under a simplified multi-access architecture; And transmitting a data forwarding rule to the UPF network element based on the data forwarding parameter so that the UPF network element transmits a downlink data stream based on the data forwarding rule. In one embodiment, the data forwarding parameter includes address information of a non-3 GPP access device. In one embodiment, the data forwarding rule includes address information of a non-3 GPP access device. In one embodiment, the data forwarding parameter includes connection information corresponding to the user plane connection. In one embodiment, the data forwarding rule includes connection information corresponding to a transmission downlink data stream. In one embodiment, in the case that the connec