Method and apparatus for transmission and reception of a transmi

Details Method and apparatus for transmission and reception of a transmi Method and apparatus for transmission and reception of a transmi

1997-04-30

2000-07-25

Ton, Dang

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

H04J 1300

Patent

active

060944285

ABSTRACT:
In a communication system where a continuous reverse channel transmission is utilized by redundant transmission of Walsh codes, a current transmission rate is modulated onto Walsh code polarity. In particular, a remote unit operating at a particular transmission rate utilizing a continuous reverse channel transmission modulates the transmission rate by setting the polarity of each Walsh code depending upon the current or future data traffic channel rate. In communication systems where a Reference Coherent (RC) type transmission is utilized, the particular transmission rate is modulated onto the reference symbols (501-517) by setting the reference symbols (501-517) equal to a binary "1" or "0".

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"Near Maximum Likelihood Demodulation for M-ary Orthogonal Signalling", Walton and Wallce, GTE Laboratories Incorporated, pp. 5-8, 1993.

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