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Device and method for measuring reverse link circuit quality in code division multiple access system

A technology of reverse link and quality, applied in the direction of transmission system, selection device, communication between multiple stations, etc., can solve the problem that the traffic volume of communication cannot reflect the actual traffic volume of BTS

Inactive Publication Date: 2006-01-11
SK TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the estimated communication traffic does not reflect the actual communication traffic of the BTS concerned

Method used

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  • Device and method for measuring reverse link circuit quality in code division multiple access system
  • Device and method for measuring reverse link circuit quality in code division multiple access system
  • Device and method for measuring reverse link circuit quality in code division multiple access system

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Embodiment Construction

[0022] In order that the present invention may be fully understood, preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0023] figure 1 A block diagram of an example of an apparatus for measuring reverse link quality is shown. It includes: RF switch 210, used to select a plurality of input routes of high-frequency reverse signals received at the BTS from MSs located in the α sector, β sector and γ sector; a power measurement unit 220, which measures the power of the signal; and the main unit 230, calculates the traffic load and reverse link quality, and monitors the whole measurement operation.

[0024] The power measurement unit 220 includes: a low-noise amplifier 221, which amplifies the input signal from the RF switch 210 with low noise; a frequency converter 222, which converts the amplified signal into an intermediate frequency signal corresponding to the relevant FA; a band-pass filter 223, which band-passe...

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Abstract

The present invention provides an apparatus and method for measuring the quality of a reverse link and the load of a base station (BTS) in a CDMA mobile telecommunication system. The apparatus including: The apparatus and method periodically detect the power of a receiving signal from a mobile station to a BTS, a controlling unit for sampling of the detecting power, and constructing a PDF and / or a CDF for a ratio of a received power to a background noise power using the digitized data, comparing the constructed function with the theoretical PDF and / or CDF for the ratio which is pre-calculated based upon various values of input parameters, and acquiring the traffic load according to the compared result; and data entering unit for receiving the values for the input parameters provided from an operator or an external device.

Description

technical field [0001] The present invention relates to a method and apparatus for measuring reverse link quality and traffic load applied to a base station (BTS) in a CDMA mobile telecommunication system. Background technique [0002] In a CDMA mobile telecommunication system, a large number of mobile stations (MS) communicate with each other via a single frequency allocation (FA). Therefore, interference from other users has an impact on communication quality and system capacity. Although interference from other users is not a problem in the forward link since all users' forward signals are synchronized to their assigned orthogonal Walsh codes, on the reverse link each signal is asynchronous And the codes used are not orthogonal to each other, so the interference added to the reverse link has a great impact on the actual performance and capacity of the reverse link. [0003] In addition, the quality and performance of the reverse link greatly depend on the situation of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/34H04Q7/30H04B7/26H04B17/00
CPCH04B17/0042H04B17/007H04B17/26H04B17/309H04W24/08
Inventor 郑敬寿丁钟珉朴泰勋徐商熏朴淳
Owner SK TELECOM CO LTD