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Cell reselection method and terminal

A cell reselection and terminal technology, applied in wireless communication, electrical components and other directions, can solve the problems of increasing terminal processing burden and power consumption, affecting the normal operation of services on the terminal, etc., to avoid adverse effects, improve reselection performance, reduce The effect of the number of reselections

Inactive Publication Date: 2010-08-04
ST ERICSSON SEMICON BEIJING
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  • Description
  • Claims
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Problems solved by technology

[0008] In the related art, after reselection between radio access technologies, judging whether the selected target radio access technology network is suitable for camping leads to unnecessary reselection, which increases the processing burden and power consumption of the terminal, and affects the services on the terminal. The present invention proposes a cell reselection method and terminal, which can avoid unnecessary cell reselection and the occurrence of ping-pong effects, reduce the power consumption of the terminal, and avoid adverse effects of frequent reselection on services on the terminal

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Embodiment Construction

[0045] The present invention provides a technique for cell reselection between effective RATs (for example, between TD-SCDMA and GSM) in a wireless communication system. When a UE that supports two or more RATs reselects from the currently camped RAT cell to another RAT cell, the UE can read the target cell related to reselection before reselecting to another RAT cell. The system broadcast block of the system pre-evaluates whether the residence criteria of the target cell are met, so as to improve the success probability of cell reselection. For example, the cell reselection technology can be implemented in a TD-SCDMA / GSM automatic dual-mode UE.

[0046] figure 1 It is a flow chart of a method for cell reselection according to an embodiment of the present invention, the method is used to select a cell that can support the first radio access technology network and the second radio access technology network and currently resides under the first network The cell reselection of ...

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Abstract

The invention discloses a cell reselection method and a cell reselection terminal, which can be used for controlling the cell selection of a terminal which can support a first wireless access technical network and a second wireless access technical network and is resided in a cell of the first network currently. In the invention, the method comprises the steps following that: the terminal determines a target cell, wherein the target cell is a cell of the second wireless access technical network; the terminal acquires cell residence parameters of the target cell; and the terminal judges whether the target cell meets the cell residence conditions according to the acquired cell residence parameters, and if the target cell meets the cell residence conditions, the terminal determines that the target cell is a reselected cell. The cell reselection method and the cell reselection terminal have the advantages of reducing unnecessary cell selection in related technology, reducing failure times of the reselection, avoiding the ping-pong effect of the cell reselection, reducing the calculation consumption and power consumption of the terminal, avoiding bad influence of the frequent switching of the wireless access technical networks on the services of the terminal and improving the selection property of the wireless access technology.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a cell reselection method and terminal. Background technique [0002] Due to the limitation of the service rate and application of the widely used second generation (2G) mobile communication system (such as Global System for Mobile Communications (GSM)), the 2G system is gradually being replaced by the third generation (3G) replaced by mobile communication systems. [0003] A 3G system (such as a Universal Mobile Telecommunications System (UMTS for short)) is a new-generation wireless communication system capable of providing more abundant wireless application services. In the process of network evolution, UMTS user equipment (User Equipment, referred to as UE), such as mobile wireless phones, needs to support multiple radio access technologies (Radio Access Technology, referred to as RAT) at the same time. For example, the UE supports communication using Time Divisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W36/30
Inventor 卢石雷冯春晶
Owner ST ERICSSON SEMICON BEIJING
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