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Pilot pollution optimization method based on road test data

A pilot pollution and drive test data technology, applied in transmission monitoring, electrical components, wireless communication, etc., can solve the problems of low efficiency of pilot pollution analysis and the inability to give quantitative analysis results, etc., and achieve the effect of high analysis efficiency

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a pilot pollution optimization method based on drive test data, so as to solve the low efficiency of pilot pollution analysis on drive test data in the existing pilot pollution optimization technology and the inability to give quantitative analysis The disadvantage of the result

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  • Pilot pollution optimization method based on road test data
  • Pilot pollution optimization method based on road test data
  • Pilot pollution optimization method based on road test data

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Embodiment Construction

[0035] In order to solve the disadvantages of the traditional technical solutions, the present invention further elaborates a pilot pollution optimization method based on drive test data according to the present invention through the following examples. The specific implementation is described in detail below, but it does not serve as an explanation of the present invention. limited.

[0036] Such as figure 1 Shown, the method provided by the invention comprises the following steps:

[0037] Step 100: the mobile terminal or the PN scanner collects drive test data, the drive test data includes drive test data including latitude and longitude information;

[0038] Step 101: Perform interpolation preprocessing on the drive test data, that is, set a threshold λ, and insert data points between data points whose distance interval d between adjacent data points in the drive test data is greater than the threshold λ;

[0039] In step 101, the number of interpolation points is determ...

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Abstract

The invention discloses a pilot frequency pollution optimization method based on the road test data. The invention comprises the following steps: (1) the mobile terminal or the PN scanner gathers theroad test data; (2) through the road test data, the pilot frequency pollution spot is obtained; (3) the pilot frequency pollution spots are classified according to the region, and the appearance possibility, the pilot frequency intensity and the distance to the corresponding base station of each pilot frequency in the region is calculated. The invention solves the disadvantages in the existing pilot frequency pollution optimization method that the pilot frequency analysis efficiency of the road test data is low, and the quantized analysis result can't be formed.

Description

technical field [0001] The invention relates to the field of wireless communication applications, in particular to a pilot pollution optimization method based on drive test data applied to a CDMA (Code Division Multiple Access) or WCDMA (Wideband Code Division Multiple Access) system. Background technique [0002] In a CDMA system, since the terminal's Rake receiver can only demodulate limited-path signals at most, redundant strong pilots will interfere with the terminal's signal demodulation, which is commonly referred to as pilot pollution. The main feature of the pilot pollution commonly referred to in engineering is that the terminal receives more than n (usually n takes 3) pilots with similar strengths and exceeding the available threshold, but the Ec / Io strength of the main pilot is relatively small, and the received power of the terminal larger. [0003] In the WCDMA system, although the primary scrambling code is used to distinguish different sectors, the role of th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04W24/02H04B1/707H04B17/309
Inventor 张三喜苏兴明
Owner ZTE CORP