Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2007-09-18
2010-06-01
Tse, Young T. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S265000, C455S024000, C455S069000, C455S088000
Reexamination Certificate
active
07729439
ABSTRACT:
A transmitter beamforming technique for use in a MIMO wireless communication system determines a partial description of a reverse channel without determining a full dimensional description of the reverse channel. A correction matrix is developed from the partial description of the reverse channel and a description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel.
REFERENCES:
patent: 7194042 (2007-03-01), Walton et al.
patent: 2005/0052991 (2005-03-01), Kadous
patent: 2005/0078762 (2005-04-01), Ketchum et al.
patent: 2005/0185728 (2005-08-01), Wallace et al.
patent: 2006/0093067 (2006-05-01), Jalali et al.
patent: 2006/0126752 (2006-06-01), Hansen et al.
patent: 2007/0041457 (2007-02-01), Kadous et al.
patent: 2007/0230373 (2007-10-01), Li et al.
patent: 2008/0014870 (2008-01-01), Kim
patent: WO 2007/103085 (2007-09-01), None
“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,” ISO/IEC 8802-11, ANSI/IEEE Std. 802.11, 1999.
“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-Speed Physical Layer Extension in the 2.4 GHz Band, ” IEEE Std. 802.11g/D2.8, May 2002.
“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 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.
IEEE Standard for Local and metropolitan area networks: Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems/Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile operation in Licensed Bands and Corrigendum 1, IEEE Std. 802.16e and IEEE Std. 802.16 2004/Cor 01-2005, Feb. 28, 2006.
IEEE Standard for Local and metropolitan area networks: Part 16: Air Interface for Fixed Broadband Wireless Access Systems-Amendment 2: Medium Access Control Modifications and Additional Physical Layer Specifications for 2-11 GHZ, IEEE Std. 802.16a 2003, Apr. 1, 2003.
S. A. Mujtaba, “IEEE P802.11—Wireless LANS, TGn Sync Proposal Technical Specification,” doc.: IEEE 802.11-04/0889r6, May 2005.
802.11 Working Group: “IEEE 802.11n Part 11: Wireless Lan Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Higher Throughput,” IEEE Mar. 2006, pp. 119-125.
International Search Report from corresponding International Application No. PCT/US07/78780 dated Mar. 10, 2008.
Written Opinion from corresponding International Application No. PCT/US07/78780 dated Mar. 10, 2008.
International Preliminary Report on Patentability for Application No. PCT/US2007/078780, dated Mar. 24, 2009.
Loc Peter
Nabar Rohit U.
Shirali Kedar
Zhang Hongyuan
Marvell World Trade Ltd.
Tse Young T.
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