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Cell reselection method and terminal device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network

A TD-SCDMA, cell reselection technology, applied in the direction of electrical components, wireless communication, etc., can solve the problem of reducing the dependence of terminal equipment, and achieve the effect of improving cell reselection performance, improving success rate, and weakening dependence.

Inactive Publication Date: 2012-03-14
ZTE CORP
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Problems solved by technology

[0007] The present invention provides a cell reselection method and terminal equipment in a TD-SCDMA network, which are used to solve the problem of making full use of the historical value information measured by terminal equipment adjacent cells when reselecting cells in a TD-SCDMA network, and reducing the terminal equipment's need for network-side designation. The problem of dependence on information

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  • Cell reselection method and terminal device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network
  • Cell reselection method and terminal device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network
  • Cell reselection method and terminal device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network

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Embodiment Construction

[0035] The main technical concept of the present invention is: in order to improve the robustness of the terminal equipment against complex environment changes, the terminal equipment is required to spontaneously understand its own environment, and within the scope of its ability to maintain and update the neighbor area as long as possible Historical measurement information. In this way, when it is impossible to switch to the inter-frequency neighboring cell listed in the measurement list sent by the network side, the terminal device can try to select a target cell with better signal from the retained historical information of the neighboring cell, thereby reducing the probability of losing coverage.

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embo...

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Abstract

The invention discloses a cell reselection method and a terminal device in a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network. The method comprises the following steps that: when a cell reselection flow is triggered, the terminal device orderly tries to read BCH (Broadcast Channel) information of corresponding pilot frequency neighboring cells according to a descending order of a RSCP (Received Signal Code Power) value of a PCCPCH (Primary Common Control Physical Channel) from a pilot frequency neighboring cell list appointed by the current residing cell network side, and reselects the pilot frequency neighboring cell in which the information can be read successfully; and if the terminal device is failed in reading the BCH information of all the pilot frequency neighboring cells appointed by the current residing cell network side, the terminal device orderly tries to read the BCH information of corresponding pilot frequency neighboring cells according to the descending order of the RSCP value of the PCCPCH from the pilot frequency neighboring cell list inherited by the previous residing cell, and reselects the pilot frequency neighboring cell in which the information can be read successfully. The terminal device comprises a pilot frequency neighboring cell information maintaining module, a first reselection module and a second reselection module. Through the invention, the success rate of cell reselection is improved effectively.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a cell reselection method and terminal equipment in a TD-SCDMA (Time Division Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access) network. Background technique [0002] In a typical TD-SCDMA (hereinafter referred to as TD) network environment, when a terminal device is in an idle state without voice or data services, the terminal device will continuously monitor the received signal strength of the currently camped TD cell and adjacent inter-frequency cells, And according to the real-time network environment changes, update the cell it resides in to maintain the TD standby state. This process is called the TD cell reselection process. [0003] The cell reselection strategy adopted by the traditional TD terminal equipment is: in the idle state, the terminal equipment monitors the signal quality of the current cell in real time by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/30
CPCH04W48/20H04W36/0058
Inventor 林峰曾文琪邱宁
Owner ZTE CORP
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