Method of mapping chips of a spread out symbol to...

Details Method of mapping chips of a spread out symbol to... Method of mapping chips of a spread out symbol to...

2004-10-15

2008-09-09

Ngo, Ricky (Department: 2616)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S342000, C375S141000

Reexamination Certificate

active

07424009

ABSTRACT:
The present invention concerns a method of mapping chips of a spread out symbol to sub-channels of a group of sub-channels of a Multi-Carrier transmission channel of a Multi-Carrier transmission network, the spread out symbol being formed by multiplying a data item to be transmitted by elements of a spreading sequence, the mapped chips being further modulated using an orthogonal frequency division multiplexing modulation, each sub-channel of the Multi-Carrier transmission channel being defined by a carrier frequency of the Multi-Carrier transmission channel and a time slot wherein an orthogonal frequency division multiplexing symbol is transmitted, wherein the chips are ordered in a predetermined order.

REFERENCES:
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patent: 2000-332724 (2000-11-01), None
Hiroyuki Atarashi, et al., “Broadband Packet Wireless Access Based on VSF-OFCDM and MC/DS-CDMA,” IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol. 3, Sep. 15, 2002, pp. 992-997.
Ramjee Prasad, et al., An Overview of Multi-Carrier CDMA, Spread Spectrum Techniques and Applications Proceedings, 1996, IEEE 4thInternational Symposium on Mainz, Germany, Sep. 22-25, 1996, pp. 107-114.
U.S. Appl. No. 10/924,982, filed Aug. 25, 2004, Mottier et al.
U.S. Appl. No. 10/922,939, filed Aug. 23, 2004, Mottier et al.
U.S. Appl. No. 10/964,930, filed Oct. 15, 2004, Mottier.

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