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Method, device and system for mobility management

A mobility and state transfer technology, applied in the field of wireless communication, which can solve the problems of data transmission interruption and affecting the end user's service experience, etc.

Active Publication Date: 2020-11-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the density of network deployment increases, UE movement will lead to frequent PCell changes, resulting in frequent interruption of UE data transmission, which seriously affects the service experience of end users, especially for delay-sensitive services.

Method used

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  • Method, device and system for mobility management
  • Method, device and system for mobility management
  • Method, device and system for mobility management

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Embodiment Construction

[0088] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. All other embodiments obtained by persons of ordinary skill in the art without any creative effort fall within the protection scope of the present invention.

[0089] Such as figure 1 As shown, a schematic flowchart of a possible primary cell (Primary Cell, PCell for short) change between base stations according to an embodiment of the present invention is provided.

[0090] 101. The first base station decides to change the PCell of a user equipment (User Equipment, UE for short), and determines a target PCell for performing the PCell change. Wherein, the first base station is the base station where the source PCell is located, and the source PCell refers to the PCell that provides services for the UE before the PCell is changed. In t...

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PUM

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Abstract

The present invention relates to the technical field of communications, in particular to a mobility management method, device and system. Embodiments of the present invention provide a mobility management method, device, and system. When the primary cell of a user equipment changes, the primary cell is changed by using a modification method instead of a traditional handover method, so as to achieve The purpose of uninterrupted data transmission during changes, effectively improving the service experience of delay-sensitive services.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a mobility management method, device and system. Background technique [0002] In a Long Term Evolution (LTE for short) mobile communication system, as a user equipment (User Equipment, UE for short) moves, the network switches the UE from a source cell to a target cell through a handover process for data transmission. [0003] After the source base station decides to execute the handover, it sends a handover command to the UE over the air interface, and the message is a Radio Resource Control (RRC) connection reconfiguration message carrying the mobility control information information element (mobilityControlInfo), and stops performing operations on the UE. uplink and downlink data transmission. After receiving the handover command, the UE performs synchronization in the handover target cell, and initiates a random access procedure to obtain a Timing Adv...

Claims

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Application Information

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IPC IPC(8): H04W36/08
CPCH04W36/08H04W36/00695H04W36/0069H04W36/0038H04W36/026H04W36/38
Inventor 张宏平严乐戴明增曾清海
Owner HUAWEI TECH CO LTD