Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-01-31
1997-07-01
Cumming, William
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
379 32, H04Q 720
Patent
active
056446233
ABSTRACT:
An automated system that assesses the quality of service provided by a cellular radiotelephone system. The system uses apparatus located at a mobile station that remotely controls apparatus located at a fixed station. A cellular radiotelephone call is placed from the mobile station which is received at the fixed station. When the connection is established, commands are sent from the mobile station to the fixed station that configure and control the operation of the fixed station. Many calls between the mobile station and the fixed station are placed and received by the mobile station each under control of the mobile station. During each call, recordings are made of the progress of the call and the audio quality measurements obtained during the call from both the mobile and fixed stations perspectives. Audio quality measurements are made utilizing enhanced audio quality measurement techniques that allows simultaneous measurements of audio quality in both the uplink and downlink channels of a cellular radiotelephone call utilizing two test tones instead of the single test tone that is normally used. The results of a number of cellular radiotelephone calls are later combined to form a set of statistical indicators that effectively represent the quality of service provided by a cellular radiotelephone system. The system provides means for comparing the quality of service provided by competing cellular radiotelephone service providers and for comparing the quality of service provided by differing cellular radiotelephone technology types.
REFERENCES:
patent: 5046082 (1991-09-01), Zicker et al.
patent: 5095500 (1992-03-01), Tayloe et al.
patent: 5109403 (1992-04-01), Sutphin
patent: 5490204 (1996-02-01), Gulledge
Cumming William
SAFCO Technologies, Inc.
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