Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2006-08-24
2010-11-02
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
C455S101000, C370S208000
Reexamination Certificate
active
07826555
ABSTRACT:
A MIMO-OFDM transmission apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection.Pilot symbol mapping (1111) is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain.Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
REFERENCES:
patent: 6473447 (2002-10-01), Strich et al.
patent: 7548506 (2009-06-01), Ma et al.
patent: 2004/0131007 (2004-07-01), Smee et al.
patent: 2004/0179627 (2004-09-01), Ketchum et al.
patent: 2004/0252629 (2004-12-01), Hasegawa et al.
patent: 2006/0030364 (2006-02-01), Olesen et al.
patent: 2006/0164971 (2006-07-01), Moorti et al.
patent: 2006/0209670 (2006-09-01), Gorokhov et al.
patent: 2007/0121750 (2007-05-01), Shirakata et al.
patent: 2007/0195906 (2007-08-01), Kim et al.
patent: 2008/0182532 (2008-07-01), Kobayashi et al.
patent: 2009/0003466 (2009-01-01), Taherzadehboroujeni et al.
patent: 2009/0060076 (2009-03-01), Ma et al.
patent: 2009/0204023 (2009-08-01), Goldenberg
patent: 2009/0274195 (2009-11-01), Chang
patent: 2009/0296839 (2009-12-01), Stadelmeier et al.
patent: 10500807 (1998-01-01), None
patent: 2005124125 (2005-05-01), None
PCT International Search Report dated Oct. 24, 2006.
Oberli, C. Daneshrad,.B.; “Maximum likelihood tracking algorithms for MIMO-OFDM,” Jun. 20, 2004, IN: in: Communications, 2004 IEEE International Conference on, vol. 4, pp. 2468-2472.
IEEE Std 802.11a-1999, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-Speed Physical Layer in the 5 GHZ Brand, pp. 1-82, 1999.
Kobayashi Kiyotaka
Murakami Yutaka
Orihashi Masayuki
Bocure Tesfaldet
Dickinson Wright PLLC
Panasonic Corporation
Williams Lawrence B
LandOfFree
MIMO-OFDM transmission device and MIMO-OFDM transmission method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with MIMO-OFDM transmission device and MIMO-OFDM transmission method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MIMO-OFDM transmission device and MIMO-OFDM transmission method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4247903