Code channel allocations in a wireless communications system

Details Code channel allocations in a wireless communications system Code channel allocations in a wireless communications system

2007-06-26

2007-06-26

Deppe, Betsy L. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C370S209000

Reexamination Certificate

active

10645697

ABSTRACT:
Systems and techniques are disclosed relating to communications. The systems and techniques involve spread-spectrum communications using a scheduler, or similar component, configured to maintain a plurality of spreading sequence assignments and a plurality of available spreading sequences each being orthogonal to the assigned spreading sequences. The scheduler may also be configured to select a spreading sequence from a group of the available spreading sequences having the same length, the selected spreading sequence being generated from a block of codes and being selected based on the number of the available spreading sequences that can be generated using the same block of codes.

REFERENCES:
patent: 6163524 (2000-12-01), Magnusson et al.
patent: 6646979 (2003-11-01), Chen et al.
patent: 7012886 (2006-03-01), Meier et al.
patent: 7020176 (2006-03-01), Heo
patent: 7054294 (2006-05-01), Magnusson
patent: 2002/0176438 (2002-11-01), Karjalainen
patent: 00/08789 (2000-02-01), None
Ray-Guang Cheng et al., “OVSF Code Channel Assignment for IMT-2000,” 2000 IEEE 51stVehicular Technology Conference Proceedings, vol. 3 of 3, Tokyo, Japan, May 15, 2000, pp. 2188-2192.

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