Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2007-02-27
2007-02-27
Kim, Kevin (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S267000
Reexamination Certificate
active
10361244
ABSTRACT:
The invention comprises using beamforming antenna to coherently transmit an information signal to a receiver using two or more directional beams. In one embodiment, the phase and timing of the information signals carried by each directional beams are adjusted such that the signals arrive synchronously at the mobile terminal. Time synchronization may be obtained by delaying signals transmitted on selected directional beams to compensate for different propagation delays, or by preconditioning and filtering the signals using a channel coefficient matrix.
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Burleigh Roger S.
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Kim Kevin
LandOfFree
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