公开(公告)号：US20180139685A1

公开(公告)日：2018-05-17

申请号：US15870171

申请日：2018-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinpeng WEI

IPC: H04W40/36 ,  H04W8/08

Abstract: Embodiments of the present invention relate to the field of communications technologies, and provide an IP address management method and apparatus, an IP address anchor, and a mobile node. The method includes: when detecting that a mobile node (MN) accesses an IP subnet on which an IP address anchor is located, obtaining, by the IP address anchor, a valid IP address prefix being used by the MN; and sending, by the IP address anchor, switchover indication information to the MN according to the valid IP address prefix, so that the MN determines, according to the switchover indication information, whether the accessed IP subnet has changed. The present invention resolves a prior-art problem that an MN cannot determine whether an IP subnet accessed by the MN has changed, thereby achieving a technical effect that an MN can accurately determine whether an IP subnet accessed by the MN has changed.

公开(公告)号：US20170339551A1

公开(公告)日：2017-11-23

申请号：US15675047

申请日：2017-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinpeng WEI

IPC: H04W8/08 ,  H04W60/04 ,  H04W36/00 ,  H04W8/26 ,  H04W24/02

CPC classification number: H04W8/08 ,  H04W8/12 ,  H04W8/26 ,  H04W24/02 ,  H04W36/0005 ,  H04W60/04

Abstract: Embodiments of the present disclosure provide a mobility management method, apparatus, and system. An HA-C sends a first BA message to an MN, where the first BA message includes an address of a first HA-U; and the HA-C sends a configuration message to the first HA-U, where the configuration message includes an HoA and a CoA that are of the MN, so that the first HA-U performs tunnel communication with the MN according to the configuration message. In this way, an original proxy server or an original gateway completes only tunnel communication with the MN, and a newly-added proxy server completes control signaling interaction with a BU, thereby reducing load of the original proxy server or the original gateway, and resolving a prior-art problem that load of a proxy server or a gateway is relatively heavy.