Method and apparatus for orthogonally overlaying variable...

Details Method and apparatus for orthogonally overlaying variable... Method and apparatus for orthogonally overlaying variable...

2008-03-11

2008-03-11

Abelson, Ronald (Department: 2619)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C370S441000

Reexamination Certificate

active

10346876

ABSTRACT:
A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies-are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.

REFERENCES:
patent: 4425642 (1984-01-01), Moses et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5751761 (1998-05-01), Gilhousen
patent: 5949796 (1999-09-01), Kumar
patent: 6064663 (2000-05-01), Honkasalo et al.
patent: 6069880 (2000-05-01), Owen et al.
patent: 6091788 (2000-07-01), Keskitalo et al.
patent: 6108323 (2000-08-01), Gray
patent: 6735240 (2004-05-01), Kang
patent: 6826169 (2004-11-01), Nagatani et al.

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