Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-07-12
2011-07-12
Tse, Young T. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C455S024000, C455S069000, C455S088000
Reexamination Certificate
active
07978781
ABSTRACT:
A first packet is transmitted via a forward channel corresponding to a signal direction from a first transceiver device to a second transceiver device, wherein the first packet includes a request to initiate calibration. A partial dimensional description of a reverse channel is determined based on the reception of a second packet received from the second transceiver device, wherein the second packet includes training information of spatial dimensions used for the transmission of the second packet but does not include training information for all available spatial dimensions of a reverse channel. A correction matrix is developed from the partial dimensional description of the reverse channel and a description of the forward channel, and the correction matrix and a steering matrix is used to process signals to be transmitted via the forward channel.
REFERENCES:
patent: 6760388 (2004-07-01), Ketchum et al.
patent: 7194042 (2007-03-01), Walton et al.
patent: 7787554 (2010-08-01), Nabar 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: 2006/0104381 (2006-05-01), Menon 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: 2008/0266176 (2008-10-01), Nabar et al.
patent: WO-2007/103085 (2007-09-01), None
“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.
“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.
“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.
802.11 Working Group: “IEEE 802.11n Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Higher Throughput,”IEEEMar. 2006, pp. 119-125.
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 1-2005, 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.
International Preliminary Report on Patentability for Application No. PCT/US2007/078780, dated Mar. 24, 2009.
International Search Report from corresponding International Application No. PCT/US07/78780 dated Mar. 10, 2008.
S. A. Mujtaba, “IEEE P802.11—Wireless LANS, TGn Sync Proposal Technical Specification,” doc.: IEEE 802.11-04/0889r6, May 2005.
Written Opinion from corresponding International Application No. PCT/US07/78780 dated Mar. 10, 2008.
Loc Peter
Nabar Rohit U.
Shirali Kedar
Zhang Hongyuan
Marvell World Trade Ltd.
Tse Young T.
LandOfFree
Calibration correction for implicit beamforming in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Calibration correction for implicit beamforming in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calibration correction for implicit beamforming in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2691065