Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2008-04-22
2008-04-22
Corrielus, Jean B. (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C375S267000, C375S347000
Reexamination Certificate
active
07362823
ABSTRACT:
An arrangement where a transmitter has a plurality of transmitting antennas that concurrently transmit the same symbol, and where the signal delivered to each transmitting antenna is weighted by a factor that is related to the channel transmission coefficients found between the transmitting antenna and receiving antennas. In the case of a plurality of transmit antennas and one receiving antenna, where the channel coefficient between the receive antenna and a transmit antenna [I] i is hi, the weighting factor is hi* divided by a normalizing factor, α, which is(∑k=1Khk2)1/2,where K is the number of transmitting antennas. When more than one receiving antenna is employed, the weighting factor is1a(gH)H,where g =[g1. . . gL), H is a matrix of channel coefficients, and αis a normalizing factor(∑p=lL∑q=lL∑k=lKhpkhqk*)1/2.
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Cingular Wireless II LLC
Corrielus Jean B.
Powell & Goldstein LLP
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