PACKET FORWARDING METHOD, APPARATUS AND SYSTEM

Title:

PACKET FORWARDING METHOD, APPARATUS AND SYSTEM

Document Type and Number:

WIPO Patent Application WO/2022/017285

Kind Code:

A1

Abstract:

Embodiments of the present application relate to the technical field of communications, and provide a packet forwarding method, apparatus and system, capable of solving the technical problems of more signaling interaction and long switching delay when an existing session management network element modifies a PDU session. The method comprises: a session management network element sends a path identifier to a first device; the first device comprises an access-network network element corresponding to a PDU session and a user plane network element corresponding to the PDU session; the PDU session corresponds to a first terminal; the path identifier is used for indicating a first path from the access-network network element to the user plane network element; the first path comprises part or all of a second path, and the second path is a path corresponding to the PDU session established by the session management network element for a second terminal in advance; the session management network element further sends identification information of a destination address corresponding to the path identifier to the first device, so that the first device carries, according to the destination address of received data, the path identifier corresponding to the destination address in the data, and forwards same by means of the path corresponding to the destination address.

Inventors:

TANG FEILONG (CN)
ZHOU HAN (CN)
LI HANCHENG (CN)
CHEN LONG (CN)
LIU JIACHENG (CN)

Application Number:

PCT/CN2021/106798

Publication Date:

January 27, 2022

Filing Date:

July 16, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04W36/00

Domestic Patent References:

WO2019161240A1	2019-08-22
WO2020142884A1	2020-07-16

Foreign References:

CN110677345A	2020-01-10
CN111194058A	2020-05-22
US20180324646A1	2018-11-08
CN202010718828A	2020-07-23

Other References: