Title:
MESSAGE FORWARDING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/184271
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of communications, and provide a message forwarding method and apparatus, to forward a message joining a multicast group to a multicast user plane network element by means of a unicast user plane network element on a user plane to trigger establishment of a tunnel for transmitting multicast data between the multicast user plane network element and an application server. The method comprises: a multicast user plane network element receives, by means of a multicast session management network element, a message, sent by a unicast user plane network element, instructing a terminal to join a multicast group, and when the terminal is the first terminal to join the multicast group, sending to an application server a message requesting to establish a tunnel for transmitting multicast data between the multicast user plane network element and the application server; or, the multicast session management network element receives a message instructing the terminal to join the multicast group, and when the terminal is the first terminal to join the multicast group, sending to the multicast user plane network element a message requesting to establish a tunnel for transmitting multicast data between the multicast user plane network element and the application server.
Inventors:
WANG YAXIN (CN)
LI YAN (CN)
LI YAN (CN)
Application Number:
PCT/CN2020/080070
Publication Date:
September 23, 2021
Filing Date:
March 18, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W4/40
Foreign References:
| CN109769150A | 2019-05-17 | |||
| CN109391909A | 2019-02-26 | |||
| CN110366131A | 2019-10-22 |
Other References:
NOKIA, ALCATEL-LUCENT SHANGHAI BELL: "23.501 ยง 5.8: IP address allocation for a PDU session and forwarding realms", 3GPP DRAFT; S2-174716 WAS S2-174158-23501- IP ADDR ALLOC UPF-V0, vol. SA WG2, 20 June 2017 (2017-06-20), Los Cabos, Mexico, pages 1 - 4, XP051309762
See also references of EP 4109939A4
See also references of EP 4109939A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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