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Method and device for supporting multi-carrier aggregation in switching process

A multi-carrier aggregation and handover process technology, applied in the field of supporting multi-carrier aggregation, can solve the problem that the cell handover method is not suitable for multi-carrier aggregation, etc., achieve good compatibility, ensure handover quality, and improve service transmission efficiency.

Active Publication Date: 2013-01-09
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and device for supporting multi-carrier aggregation in the handover process, so as to solve the problem that the current cell handover method is not suitable for multi-carrier aggregation

Method used

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  • Method and device for supporting multi-carrier aggregation in switching process
  • Method and device for supporting multi-carrier aggregation in switching process
  • Method and device for supporting multi-carrier aggregation in switching process

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Embodiment Construction

[0036] The method for supporting multi-carrier aggregation in the handover process provided by the present invention, in a nutshell, is that the source eNB carries the target cell identification list information during the handover process, so that multiple target cells determined according to the target cell identification list information can pair Data of the UE is jointly transmitted to improve transmission efficiency.

[0037] In the present invention, if different carriers are assigned different cell identities, the cell identities will uniquely determine the carrier under one cell.

[0038] Generally speaking, the inventive method comprises the following steps:

[0039] [1] The handover request message sent by the source eNB to the target eNB carries target cell identity list information; wherein, each target cell identity in the list corresponds to one carrier only;

[0040] [2] The target cell identity list information is carried in the handover request confirmation m...

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Abstract

The invention discloses a method and a device for supporting multi-carrier aggregation in a switching process. The method comprises the following steps: carrying target cell identification list information in a switching request message sent by a source NB to a target NB; carrying the target cell identification list information in a switching request acknowledgement message sent by the target NB to the source NB; sending a switching command message which comprises the target cell identification list information by the source NB to UE; and performing a process of switching the UE to a target cell. The target cell identification list information is carried in the switching process, so a plurality of target cells can be selected after UE switching to jointly transmit UE data; and the servicetransmission efficiency of an LTE-A system can be effectively enhanced.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for supporting multi-carrier aggregation during handover. Background technique [0002] In some cases, for example, when the environment of the cell where the user equipment (User Equipment, UE) currently resides deteriorates, it is necessary to perform cell handover for the UE. This paper focuses on the cell handover scheme in the multi-carrier aggregation (CarrierAggregation, CA) communication system. The so-called CA refers to the collection of multiple continuous or discontinuous carriers in the same cell, and can serve UE at the same time when needed. , to provide the desired rate. CA is a technology introduced by the improved Long Time Evolution Advanced (LTE-A) system. The reason why LTE-A introduces CA is that the peak rate of LTE-A is greatly improved compared with LTE, and the downlink is required to reach 1Gbps. The uplink is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/02
Inventor 汪颖梁靖全海洋彦楠
Owner DATANG MOBILE COMM EQUIP CO LTD
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