Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-07-24
2000-04-18
Nguyen, Lee
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455 671, 455 674, 370241, 370335, H04Q 734
Patent
active
060525843
ABSTRACT:
Testing a CDMA cellular communication system involves placing stationary load box test units about a selected cell and transmitting predetermined signals from the test units. The signals include voice signals or audio test sequences, such that the transmissions simulate traffic loading in the cell. The effective radiated power from the stationary test units is varied in a predetermined manner to simulate fading, multi-path, and motion. A mobile test unit traverses the cell along a predetermined path. The mobile test unit makes, a CDMA telephone call to at least one of the stationary test units during transit. The mobile test unit includes a data recorder, which records test data regarding the call(s), including a recording of the voice or specialized audio test sequences. One or more of the stationary test units that receives a call from the mobile unlit also records pertinent data regarding the test call.
REFERENCES:
patent: 5095500 (1992-03-01), Tayloe et al.
patent: 5425076 (1995-06-01), Knippelmier
patent: 5465390 (1995-11-01), Cohen
patent: 5481588 (1996-01-01), Rickli et al.
patent: 5596570 (1997-01-01), Soliman
Harvey Richard L.
Zaputowycz Roman Z.
Bell Atlantic Nynex Mobile
Nguyen Lee
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