System, and associated method, for facilitating broadband...

Details System, and associated method, for facilitating broadband... System, and associated method, for facilitating broadband...

2007-11-20

2007-11-20

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S144000, C375S260000, C375S259000, C375S285000

Reexamination Certificate

active

10877787

ABSTRACT:
A method for facilitating broadband multi-carrier wireless transmission, whereby a plurality of transmit antennas are divided into two or more transmit antenna groups of transmit antennas so that the correlation between antennas in each group is minimized, and each group of antennas transmits on a predetermined frequency with a different time periodicity, and each transmit antenna in each group transmits training sequences which are reciprocally time-orthogonal. Each of a plurality of receive antennas receives signals from each transmit antenna group. The signals from each group are separated via a band-pass filter, and a maximum estimation range of a frequency offset estimation algorithm is determined by the group having the shortest time period, and the accuracy of the frequency offset estimation algorithm is determined by the group having the longest time period. The received signal is corrected with the frequency offset.

REFERENCES:
patent: 2002/0118724 (2002-08-01), Kishimoto et al.
patent: 2003/0002471 (2003-01-01), Crawford et al.
patent: 2003/0235238 (2003-12-01), Scheim et al.

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