Title:
METHOD AND DEVICE FOR RELEASING NETWORK SEGMENT
Document Type and Number:
WIPO Patent Application WO/2020/119791
Kind Code:
A1
Abstract:
The present application provides a method and device for releasing network segment, relating to the technical filed of communications, and used for solving the problem of different PGW-Us issuing the same network segment route when a Sxb interface link between PGW-C and PGW-U flashes. The method comprises the following steps: when determining that no session is using an address in a first network segment, the control plane gateway sends to the data plane gateway occupying the first network segment a first message for indicating the data plane gateway to release the first network segment, receives from the data plane gateway a second message for indicating that the data plane gateway has released the first network segment, and releases the first network segment according to the second message. The control plane gateway releases a first network segment after the first network segment is released by the data plane gateway, such that the first network segment will not be allocated to two data plane gateways, thereby avoiding the issue of the same network segment route by two data plane gateways.
Inventors:
LONG SIRUI (CN)
QU QIN (CN)
QU QIN (CN)
Application Number:
PCT/CN2019/125241
Publication Date:
June 18, 2020
Filing Date:
December 13, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W40/24
Foreign References:
| CN108377582A | 2018-08-07 | |||
| CN107872326A | 2018-04-03 | |||
| CN108882315A | 2018-11-23 | |||
| CN108811000A | 2018-11-13 | |||
| US20180295659A1 | 2018-10-11 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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