Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-11-20
2007-11-20
Ha, Dav V. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S343000, C455S013400, C455S039000, C370S331000, C370S335000, C370S437000, C370S491000, C370S500000
Reexamination Certificate
active
11030941
ABSTRACT:
There is provided a method and apparatus for selecting an appropriate base station and an optimal data rate to provide a voice service and a data service based on a voice service load in a CDMA system. A base station transmits two pilot signals orthogonally spread with different orthogonal codes in association with its voice service load, and a mobile station estimates the voice service load based on a pilot power ratio.
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Huh Hoon
Kang Hee-Won
Yang Sang-Hyun
Yeom Jae-Heung
Yoon Soon-Young
Ha Dav V.
The Farrell Law Firm P.C.
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