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Method for measuring adjacent cell

A measurement method and technology of adjacent cells, applied in the direction of electrical components, radio/inductive link selection arrangement, selection device, etc., can solve the problems of low measurement accuracy and limited measurement range, so as to improve measurement accuracy and improve Measuring range, effect of avoiding fluctuations in measured values

Active Publication Date: 2008-07-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The purpose of the present invention is to provide a method for measuring adjacent cells suitable for TD-SCDMA, so as to solve the technical defects of limited measurement range and low measurement accuracy in the prior art

Method used

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  • Method for measuring adjacent cell
  • Method for measuring adjacent cell
  • Method for measuring adjacent cell

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] The present invention divides the measurement step into two major steps when performing adjacent cell measurement: the first step: the UE calculates the position and power information of the downlink pilot time slot DwPTS of each adjacent cell, and the second step: according to each adjacent cell The location information of the DwPTS obtains the TS0 time slots of each neighboring cell and the time difference Tn between the time slots delivered by each neighboring cell and the synchronization time slot delivered by the serving cell to reach the UE, and then the UE estimates the channel impulse response of each neighboring cell to obtain the information Impulse response, and then calculate the PCCPCH RSCP and SFN_SFN OTD of each neighboring cell, so that the UE can reside in a serving cell with better service quality during cell reselection or handover. When the...

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Abstract

This invention discloses a measurement method for adjacent regions including: 1, a UE gets positions of the DwPTS of adjacent regions and power information, 2, the UE determines the position of the TSO time slot of the local area, 3, the UE gets the PCCPCH Midamble from the TSO time slot of each adjacent area and carries out channel impact response estimation to it and the basic Midamble to get the impact response of the local adjacent area, 4, computing the PCCPCHRSCP of each adjacent area and SFN SFN OTD based on the channel impact response of each adjacent area. This method also includes: judging if the DwPTS is effective.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for measuring an adjacent cell, in particular to a method for measuring an adjacent cell applicable to a TD-SCDMA communication system. Background technique [0002] In the TD-SCDMA communication system, when the UE (user terminal) initially searches for a cell, it mainly finds an available cell for communication as soon as possible, but the cell is not necessarily the cell with the best communication quality, so when the UE is in an idle state, it needs to Neighboring cell measurements are performed to find serving cells with better communication quality. [0003] In addition, during the moving process of the UE, the area where the UE is located may change, thus causing the UE to change from the coverage of one cell to the coverage of another cell. Therefore, the UE also needs to measure neighboring cells in order to find a better location. A service cell with goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/32H04W24/08
Inventor 乔元新邹素玲徐国琴
Owner DATANG MOBILE COMM EQUIP CO LTD