Phase shift keying wireless communication apparatus and method

Details Phase shift keying wireless communication apparatus and method Phase shift keying wireless communication apparatus and method

2006-09-12

2006-09-12

Kumar, Pankaj (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Angle modulation

Reexamination Certificate

active

07106803

ABSTRACT:
Method and apparatus for high speed wireless transmission involving selective PSK coding techniques are disclosed. In particular, to enhance effective throughput while maintaining a channel footprint backwards compatible with existing IEEE 802.11 and 802.11b (1999) standards, the payload of outbound data packets are selectively modulated using DQPSK techniques at the CCK symbol chipping rate. This results in a 22 Mbps effective throughput, a 2× improvement over the 802.11b standard. A complementary receiver includes a DQPSK demodulation pathway suitable for decoding inbound data packets at the 11 MHz CCK chipping rate but bypassing the conventional CCK encoder, resulting in a 22 Mbps data stream. Backwards compatibility with legacy 802.11 and 802.11b devices is partially accommodated using a data packet format similar to the conventional PLCP frame format but for the data transmission rate and use of heretofore reserved bits, causing legacy devices to ignore such packets.

REFERENCES:
patent: 6075812 (2000-06-01), Cafarella et al.
patent: 6819677 (2004-11-01), Nouzovsky et al.
patent: 6904272 (2005-06-01), Hitomi et al.
patent: 2001/0054060 (2001-12-01), Fillebrown et al.
patent: 2001/0055351 (2001-12-01), Malkemes et al.
Jan M. Rabaey, “Wireless Beyond the Third Generation—Facing the Energy Challenge” BWRC, EECS Department, ISLPED '01, Aug. 6-7, 2001, Huntington Beach, California, USA, pp. 1-3.
IEEE std. 802.11b—1999,Sponsor LAN MAN Standards Committee of IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Higher Speed Physical Layer Extension in 2.4 GHz Band,” Ch. 18 (pp. 11-58).
ANSI/IEEE Std 802.11, 1999 Edition,Sponsor LAN MAN Standards Committee of IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,” Ch. 12 (pp. 138-146), Ch. 13 (pp. 147), Ch. 15 (pp. 195-223).

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