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Method and device for realizing user equipment (UE) switching between base stations

A technology between user equipment and base stations, applied in the field of communication, can solve problems that affect handover performance and cannot select target nodes

Active Publication Date: 2017-01-04
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, according to the prior art, when the handover operation of the UE between base stations is implemented in the macro cell, if the target SCG of the handover is a CSG cell or other Small Cells that may have PCI conflicts, when the target eNB makes a dual connectivity decision, it may The CSG cell accesses a UE without authorization or the target node cannot be correctly selected for the UE due to PCI conflicts, which affects the handover performance

Method used

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  • Method and device for realizing user equipment (UE) switching between base stations
  • Method and device for realizing user equipment (UE) switching between base stations
  • Method and device for realizing user equipment (UE) switching between base stations

Examples

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Embodiment 1

[0098] Assuming that the first eNB is performing dual connectivity operation, the handover process between base stations provided in this embodiment specifically includes:

[0099] Step 1: The first eNB decides that an inter-eNB handover operation needs to be performed according to the measurement report of the UE and the Radio Resource Management (RRM) information of the network. In addition, the first eNB decides that the SCG may need to be replaced;

[0100] Step 2: When one or more cells in the target SCG belong to CSG cells, and the target SCG (the cells in the target SCG are CSG cells) supports the hybrid mode, in addition, the first eNB has obtained it through UE measurement reporting or other methods The information about the CSG cell of the target SCG specifically includes the member state information of the CSG cell (that is, the information used to indicate whether the UE that needs to perform handover between base stations is a member of the CSG cell), and the infor...

Embodiment 2

[0109] Assuming that the first eNB is performing dual connectivity operation, the handover process between base stations provided in this embodiment specifically includes:

[0110] Step 1: The first eNB decides that an inter-eNB handover operation needs to be performed according to the measurement report of the UE and the Radio Resource Management (RRM) information of the network. In addition, the first eNB decides that the SCG may need to be replaced;

[0111] Step 2: When one or more cells in the target SCG belong to CSG cells, and the target SCG (the cells in the target SCG are CSG cells) supports the hybrid mode, in addition, the first eNB has obtained it through UE measurement reporting or other methods The information about the CSG cell of the target SCG specifically includes the member state information of the CSG cell (that is, the information used to indicate whether the UE that needs to perform handover between base stations is a member of the CSG cell), and the infor...

Embodiment 3

[0115] Assuming that the first eNB is performing dual connectivity operation, the handover process between base stations provided in this embodiment specifically includes:

[0116] Step 1: The first eNB decides that an inter-eNB handover operation needs to be performed according to the measurement report of the UE and the Radio Resource Management (RRM) information of the network. In addition, the first eNB decides that the SCG may need to be replaced;

[0117] Step 2: When one or more cells in the target SCG belong to CSG cells, and the target SCG (the cells in the target SCG are CSG cells) supports the close mode, in addition, the first eNB has obtained the UE measurement report or other methods The information about the CSG cell of the target SCG specifically includes the member state information of the CSG cell (that is, the information used to indicate whether the UE that needs to perform handover between base stations is a member of the CSG cell), and the information of t...

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Abstract

The present invention discloses a method and device for realizing user equipment (UE) switching between base stations. The objective of the invention is to improve the switching performance of user equipment (UE) between base stations and avoid the problems which are likely to occur that a CSG district accesses the UE without authority or goal nodes accessed by the UE cannot be accurately selected for the UE caused by the PCI conflict when a target eNB is subjected to dual-connection determination. The method comprises: a first base station determines the CSG district information of the target CSG when it is determined that the UE needs to switch between the first base station and the second base station and the switching districts in the target assistant district set SCG is closed user group CSG districts; and moreover, the first base station informs the second base station of the CSG district information of the target SCG.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and device for realizing handover between base stations of user equipment UE. Background technique [0002] With the deployment of more and more local nodes such as femtocells, microcells, and relays, the traditional network architecture dominated by macro base stations will gradually evolve into a network architecture in which more types of base stations coexist and provide more layers network coverage. In order to improve the related performance under the coexistence network architecture of multiple types of base stations, a network architecture for realizing cooperation / aggregation between multiple evolved NodeBs (eNBs) through non-ideal links is proposed. Under this architecture, a part of radio bearers (RBs) of user equipment (User Equipment, UE) is on the master cell group (Master Cell Group, MCG) managed by master base station (Master eNB, Me...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W36/28
CPCH04W36/08H04W36/0069
Inventor 张大钧刘爱娟汪颖
Owner DATANG MOBILE COMM EQUIP CO LTD
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