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Method, terminal and system for switching serving cells

A service cell and terminal technology, applied in wireless communication, electrical components, etc., can solve the problems that the target cell cannot receive UE feedback information, the target cell cannot start providing services, poor quality, etc., and achieve the effect of solving the problem of repeated service data

Inactive Publication Date: 2009-12-30
SHANGHAI HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0016] If the uplink quality of the target cell is poor (such as in an unbalanced link environment), it is likely that the target cell cannot receive the feedback information from the UE, so that the target cell cannot start providing services to the UE, but at this time, the UE The serving cell has been handed over to the target cell, which causes interruption of real-time services
Therefore, the reliability of the serving cell switching method described in the prior art is low

Method used

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  • Method, terminal and system for switching serving cells
  • Method, terminal and system for switching serving cells
  • Method, terminal and system for switching serving cells

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Embodiment Construction

[0032] The method, terminal and system for switching the serving cell according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] see figure 2 , is a flowchart of a method for switching a serving cell according to an embodiment of the present invention.

[0034] Step 1111: After receiving the handover command sent by the target cell, the UE sends feedback information to the target cell.

[0035] Step 1112: After receiving the confirmation information fed back by the target cell, the UE switches the serving cell to the target cell.

[0036] Wherein, the UE sends feedback information to the target cell, which may be sending at least one channel quality indicator as feedback information to the target cell; or sending the transformed uplink scrambling code to the target cell as the feedback information; or sending the medium access control protocol data unit as feedback information to the target c...

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Abstract

The embodiment of the invention discloses a method, a terminal and a system for switching serving cells. The method comprises the following steps that: the terminal receives a switch command of a target cell and sends feedback information to the target cell; and the terminal receives confirmation information fed back by the target cell and then switches the serving cell into the target cell. The embodiment of the invention also discloses the terminal and the system for switching the serving cells. The method, terminal and the system can effectively strengthen the reliability of switching process of the serving cells.

Description

technical field [0001] The present invention relates to the field of cell switching, in particular to a method, terminal and system for serving cell switching. Background technique [0002] In view of the asymmetry, high peak rate, and short activation time of high-speed packets, in order to effectively use wireless spectrum resources and improve downlink peak rate and cell throughput, in the 3rd Generation Partnership Project (3GPP: 3rd Generation Partnership The Wideband Code Division Multiple Access (WCDMA: Wide band Code Division Multiple Access) standard version formulated by the Project) organization introduces the High Speed ​​Downlink Packet Access (HSDPA: High Speed ​​Downlink Packet Access) technology. Correspondingly, a new high-speed downlink shared channel (HS-DSCH: High Speed ​​Downlink SharedChannel) was added to carry out high-speed packet data transmission shared by multiple users, and adaptive modulation and coding, fast physical layer hybrid automatic retr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/30
Inventor 郑潇潇许亮李靖
Owner SHANGHAI HUAWEI TECH CO LTD
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