Wireless code division multiple access communications system...

Details Wireless code division multiple access communications system... Wireless code division multiple access communications system...

2005-02-15

2005-02-15

Ngo, Ricky (Department: 2666)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C375S130000

Reexamination Certificate

active

06856610

ABSTRACT:
A wireless communication network (10). The network comprises a wireless receiver (14). The receiver comprises at least one antenna (AT14) for receiving a plurality of frames in a form of a plurality of paths. Each of the plurality of frames is modulated by a plurality of chips, and chip in the plurality of chips has a like chip duration. The receiver further comprises a plurality of path resources (F1, F2), and this plurality of path resources comprises a first path resource (F1) configured to receive a first plurality of symbols from a first path in the plurality of paths and a second path resource (F2) configured to receive a second plurality of symbols from a second path in the plurality of paths. The plurality of path resources also comprises circuitry for sampling the second path at a time less than the chip duration from a time when the circuitry for sampling samples the first path. Still further, the plurality of path resources comprise circuitry (442,461), responsive to the circuitry for sampling, for establishing a first channel estimate for the first path in response to the first path and the second path. Lastly, the plurality of path resources comprises circuitry (441,462), responsive to the circuitry for sampling, for establishing a second channel estimate for the second path in response to the first path and the second path.

REFERENCES:
patent: 5648983 (1997-07-01), Kostic et al.
patent: 5734674 (1998-03-01), Fenton et al.
patent: 6442193 (2002-08-01), Hirsch
patent: 6804311 (2004-10-01), Dabak et al.
patent: 20010038663 (2001-11-01), Medlock

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