Method for providing service for switching of user equipment, base station and dual connectivity system

A user equipment, dual-connection technology, applied in the field of communication, can solve the problems of not providing a dual-connection system user equipment switching solution, complicated user equipment switching situation, etc.

Active Publication Date: 2015-08-05
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the user equipment moves into the coverage of macro cells and small cells, the handover of the user equipment between cells and / or base stations will become complicated because the user equipment supports dual connectivity
[0003] However, in the prior art, there is no handover solution for the user equipment in the dual connectivity system

Method used

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  • Method for providing service for switching of user equipment, base station and dual connectivity system
  • Method for providing service for switching of user equipment, base station and dual connectivity system
  • Method for providing service for switching of user equipment, base station and dual connectivity system

Examples

Experimental program
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Embodiment 1

[0118] In this embodiment, both the source base station and the target base station of the user equipment during the handover process support dual connectivity configuration, that is, both the source base station and the target base station can have a secondary base station that jointly provides dual connectivity services for the user equipment. This embodiment includes the following steps:

[0119] After determining with the target base station that the user equipment needs to be handed over, the source base station sends connection reconfiguration information to the user equipment, and sends a release request to the secondary base station that provides dual connectivity services for the user equipment together with the source base station.

[0120] The SeNB of the source base station sends a release response to the source base station.

[0121] The source base station transmits the SN status to the target base station and performs data forwarding on the user equipment.

[0...

Embodiment 2

[0162] In this embodiment, the source base station of the user equipment supports the dual connectivity configuration during the handover process, and the target base station does not support the dual connectivity configuration, such as Figure 7 shown. That is, the source base station may have a SeNB that jointly provides the dual connectivity service for the user equipment, but the target base station does not have a SeNB that jointly provides the dual connectivity service for the user equipment. For the steps in this example, please refer to Figure 8 .

[0163] In step S201, after determining with the target base station that the user equipment needs to be handed over, the source base station sends connection reconfiguration information to the user equipment, and sends a release request to the secondary base station that provides dual connectivity services for the user equipment together with the source base station. Wherein, the process of the source base station and th...

Embodiment 3

[0172] In this embodiment, the source base station of the user equipment during the handover process supports dual connectivity configuration, that is, the source base station may have a secondary base station that jointly provides dual connectivity services for the user equipment; and the secondary base station of the source base station and the target base station for the same base station, such as Figure 9 Show. For the steps in this example, please refer to Figure 10 .

[0173] In step S301, after determining with the target base station that the user equipment needs to be handed over, the source base station sends connection reconfiguration information to the user equipment, and sends a release request to the secondary base station (ie, the target base station), and the release request is used to request the release of the secondary base station. Connection between base station and user equipment.

[0174] In step S302, the secondary base station sends a release resp...

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Abstract

The invention provides a method for providing a service for switching of user equipment, a base station and a dual connectivity system. The operation of releasing and adding an auxiliary base station is performed, and the problem of data transmission in the process is solved, so that a solution for switching the user equipment between cells or base stations is provided under a plurality of situations of the dual connectivity system.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a method, a base station and a dual connection system for providing services for handover of user equipment. Background technique [0002] In a dual connectivity system, user equipment usually has dual / multiple connectivity (dual connectivity) with a primary cell and a secondary cell. Usually, the user equipment is connected with a macro cell to maintain mobility robustness, and the user equipment performs traffic offloading through a second connection with a small cell (small cell). When the user equipment moves into the coverage of the macro cell and the small cell, since the user equipment supports dual connectivity, handover of the user equipment between cells and / or base stations becomes complicated. [0003] However, in the prior art, there is no solution for handover of the user equipment in the dual connectivity system. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W74/08
CPCH04W36/0005H04W76/19H04W76/34H04W36/0027
Inventor 温萍萍钱德瑞卡·沃拉尔杨涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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