MIMO-OFDM receiver processing with frequency and channel...

Details MIMO-OFDM receiver processing with frequency and channel... MIMO-OFDM receiver processing with frequency and channel...

2004-08-05

2008-08-05

Tran, Khai (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S299000, C455S132000

Reexamination Certificate

active

07408976

ABSTRACT:
A receiver in a MIMO-OFDM system may process OFDM symbols received on a number (MR) of receive antennas. The system may utilize a MIMO-OFDM frame format that includes additional long training OFDM symbols, for training additional antennas and for link adaptation, and a header with an additional SIGNAL symbol to indicate MIMO-OFDM-specific information.

REFERENCES:
patent: 2004/0136313 (2004-07-01), Goldstein et al.
patent: 2005/0180312 (2005-08-01), Walton et al.
patent: 2005/0195733 (2005-09-01), Walton et al.
patent: 2006/0252386 (2006-11-01), Boer et al.
IEEE Std 802.11a-1999 (R2003), Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, High-speed Physical Layer in the 5 GHz Band, Jun. 12, 2003, pp. 7-8.
van Nee, Richard, A new OFDM standard for high rate wireless LAN in the 5 GHz band; Vehicular Technology Conference, 1999. VTC 1999—Fall. IEEE VTS 50th vol. 1, Sep. 19-22, 1999 pp. 258-262 discloses a system with relevance to claims 1-60.
IEEE Computer Society, “Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications”, IEEE Std 802.11—First Edition, 1999.
IEEE Computer Society, “Supplement to IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: High-speed Physical Layer in the 5 GHZ Band”, IEEE Std 802.11a—1999 (Supplement to IEEE Std 802.11-1999)
IEEE Computer Society, “Supplement to IEEE Standard for Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Higher-speed Physical Layer Extension in the 2.4 GHZ Band”, IEEE Std 802.11b-1999 (Supplement to IEEE Std 802.11-1999).
IEEE Computer Society, “IEEE Standard for Information Technology—DRAFT Supplement to Standard [for] Information Technology—Telecommunications and Information Exchange Between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control(MAC)and Physical Layer(PHY)Specifications: Further Higher Data Rate Extension in the 2.4 GHz Band”, IEEE P802.11g/D8.2, Apr. 2003.

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