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Handover method and related device between base stations

A technology between base stations and base stations, applied in the field of communication

Active Publication Date: 2018-02-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a handover method and related devices between base stations, which are used to solve the problem of how to improve the success rate of handover between base stations in the prior art

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  • Handover method and related device between base stations
  • Handover method and related device between base stations
  • Handover method and related device between base stations

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Embodiment Construction

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0081] In various embodiments of the invention, X2 link handover refers to mobility management that does not involve EPC relocation. For example, when the user equipment (User Equipment, UE) moves in an MME group or the handover is performed in the same MME, the handover process does not involve the MME and the SGW, and the source base station and the target base station directly interact through the X2 interface to perform the X2 Link switching. S1 link handover ...

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Abstract

A handover method between base stations and related devices. The method includes: the source base station receives updated S1 link status information between the target base station and the mobility management entity MME group serving the target base station and updates the stored S1 link status information set; when the source base station When sending a handover request message to the target base station to switch the user equipment served by the source base station to the cell under the target base station, in the S1 link state information set, according to the target base station and the MME serving the source base station and where the user equipment resides According to the S1 link status information between the source base station and the target base station, X2 link switching or S1 link switching is performed. Corresponding devices are also disclosed. By adopting the technical solution of a handover method between base stations and related devices provided by the present invention, the success rate of handover between base stations is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for handover between base stations and a related device. Background technique [0002] The 3GPP Long Term Evolution (LTE) system includes an evolved base station (evolved-NodeB, eNB) and an evolved packet core network (Evolved Packer Core Network, EPC), and the EPC includes a mobility management entity (Mobility Management Entity, MME) and a system Architecture Evolution Gateway (SAE GateWay, SGW), MME, as part of the control plane, is responsible for the mobility management of the control plane, including user context, mobility state management, etc. During wireless link planning, multiple MMEs are divided into the same MME group, but due to transmission limitations, the base station under each MME only establishes an S1 connection with the MME serving the base station, and since the X2 self-establishment , an X2 link will be established between the base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08
CPCH04W36/0064
Inventor 李俊勇
Owner HUAWEI TECH CO LTD