Telecommunications – Transmitter – Diversity
Reexamination Certificate
2005-10-18
2005-10-18
Vuong, Quochien B. (Department: 2685)
Telecommunications
Transmitter
Diversity
C455S562100, C375S267000, C375S299000
Reexamination Certificate
active
06957050
ABSTRACT:
At least two passive antenna arrays of an existing multicarrier base station transceiver system are supplemented by an auxiliary antenna array to provide a system and method of enhancing reverse link sensitivity and reducing the effects of multipath fading in a wireless communication system without the need for modifications to the mobile station. The auxiliary antenna array provides a complementary transmit diversity path for the two passive antennas such that a predetermined time delay is implemented to a composite transmit signal and the delayed composite transmit signal is fed directly to the auxiliary antenna array. The delayed signal and the signals from the passive antenna arrays provide a reduced noise figure and time delay transmit diversity for the multicarrier BTS operation.
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Lemson Paul H.
Miller Shmuel
Shapira Joseph
Celletra Ltd.
Vuong Quochien B.
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