Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2008-07-15
2008-07-15
Jung, Min (Department: 2616)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S336000, C455S562100
Reexamination Certificate
active
10825748
ABSTRACT:
In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.
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Bender Paul E.
Jalali Ahmad
Judson Bruce
Padovani Roberto
Wheatley III Charles E.
Jenckes Kenyon S.
Jung Min
QUALCOMM Incorporated
Rouse Thomas R.
Vu Kenneth K.
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