Cell switching method and system for multi-carrier aggregation system

A technology of multi-carrier aggregation and cell handover, applied in electrical components, wireless communication, etc., and can solve problems such as being unable to be used in CA systems

Active Publication Date: 2010-10-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the handover method in the prior art is single-carrier-to-single-carrier handover, which cannot be used in the CA system, and currently there is no method for cell handover in the CA system

Method used

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  • Cell switching method and system for multi-carrier aggregation system
  • Cell switching method and system for multi-carrier aggregation system
  • Cell switching method and system for multi-carrier aggregation system

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] The method provided by the present invention mainly includes: the target eNB determines that when the target cell accepts one of multiple operating frequency points of the UE, reserves carrier resources for the UE that meet the service quality of service (QoS) requirements of the UE, and reports to the UE through the source eNB Send a handover command containing the frequency point information accepted by the target cell; the UE uses the frequency point accepted by the target cell to access the target cell according to the frequency point information in the handover command; after the UE accesses the target cell, the target eNB Data transmission of the UE is scheduled on the carrier resource reserved by the UE.

[0019] The above method wil...

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Abstract

The invention provides a cell switching method and a system for a multi-carrier aggregation system. When an evolved Node B (eNB) determines a target cell to admit one of a plurality of working frequency points of user equipment, a switching command containing frequency point information admitted by the target cell is transmitted to the UE through a source eNB and carrier resources satisfying the required quality of service (QoS) of the UE are reserved for the UE; and after the UE accesses to the target cell according to the frequency point information in the switching command by using the frequency point admitted by the target cell, a target eNB schedules the data transmission of the UE on the carrier resources reserved for the UE. Thereby, the switching of the UE from a source cell to the target cell under the multi-carrier system is realized, and if the carrier resources which are reserved by the eNB for the UE and satisfy the required QoS are multi-carrier resources, the switching of the UE from multi-carrier to multi-carrier can be realized.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular to a cell switching method and system of a multi-carrier aggregation system. Background technique [0002] When the channel environment of the cell where the user terminal (UE) currently resides deteriorates, the source base station (eNB) will trigger the UE to perform cell handover. [0003] The existing cell handover process is as follows: figure 1 As shown, the source eNB sends a handover request message to the target eNB, and the handover request message includes the identity of the target cell selected by the source eNB and the operating frequency point information of the UE. After the target eNB determines that the target cell can use the UE's operating frequency to accept the UE's access, it reserves corresponding resources for the UE. The reserved resources are carrier resources where the UE's operating frequency is located, and sends the source eNB...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/34
Inventor 梁靖李国庆
Owner DATANG MOBILE COMM EQUIP CO LTD
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