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Method and device for searching transmission time-delayed information in wireless telecommunication system

A wireless communication system, transmission delay technology, applied in wireless communication, synchronization device, transmission system, etc., can solve the problems of affecting the connection service quality, time-consuming, and dedicated channel synchronization time during handover, etc., to shorten the definite search Window position time, shortening time, effect of service quality assurance

Inactive Publication Date: 2007-06-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above that since the existing technology uses the entire cell as the search range for searching transmission delay information, it may take a relatively long time to search for the real transmission delay information due to the long search time, resulting in a dedicated channel The synchronization time is too long, which affects the connection service quality when switching

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  • Method and device for searching transmission time-delayed information in wireless telecommunication system
  • Method and device for searching transmission time-delayed information in wireless telecommunication system

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Embodiment Construction

[0028] The present invention mainly determines the area to be searched for searching transmission delay information according to the area where switching occurs when handover occurs in the wireless communication system; and then searches for transmission delay information in the determined area to be searched.

[0029] The present invention mainly considers that when the user enters the next cell from the current cell, the signal switching occurs in the overlapping coverage area of ​​the signals of the above two cells, and the switching area is referred to as the switching area for short. Therefore, the present invention considers that when searching for transmission delay information, the search area is set as a handover area from the original entire cell, or an area expanded based on the handover area, and the transmission delay information is searched in the set search area. The search is performed, and the authenticity of the searched transmission delay information can be g...

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Abstract

The invention comprises: in the first, when there is a switch occurring in radio communication system, according to the area occurring the switch, determines the area where the propagation delay information needs to be searched; then, searches the propagation delay information in the determined searching area. The invention can narrow the searching range for searching propagation delay when switching cell so as to shorten the time length for searching and determining propagation delay.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a technology for searching transmission delay information in a wireless communication system. Background technique [0002] When a user terminal accesses a WCDMA (Wideband Code Division Multiple Access) system for the first time, there will be a delay when the access signal sent by the user terminal arrives at the base station, which is a propagation delay (Propagation Delay). When the high-level system establishes a dedicated channel for the user terminal's call and other services, the transmission delay information is brought into the high-level system through the IUB interface (interface between Node B and RNC), and the high-level system guides the dedicated channel according to the transmission delay information. The channel determines the location of the search window. The search window is used to guide the search to determine the location of the user termina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B1/707H04W56/00
Inventor 蔡华孙旭生
Owner HUAWEI TECH CO LTD