Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-09-20
2009-06-09
Le, Nhan T (Department: 2618)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S334000, C370S342000, C375S148000, C342S372000, C455S276100
Reexamination Certificate
active
07545778
ABSTRACT:
A transceiver using composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The optimum transmit weight vector and receive weight vector for communication between the first and second communication devices is determined so that there is effectively joint or composite beamforming between the communication devices.
REFERENCES:
patent: 4121221 (1978-10-01), Meadows
patent: 4599734 (1986-07-01), Yamamoto
patent: 4639914 (1987-01-01), Winters
patent: 5274844 (1993-12-01), Harrison et al.
patent: 5394435 (1995-02-01), Weerackody
patent: 5437055 (1995-07-01), Wheatley, III
patent: 5457808 (1995-10-01), Osawa et al.
patent: 5491723 (1996-02-01), Diepstraten
patent: 5493307 (1996-02-01), Tsujimoto
patent: 5507035 (1996-04-01), Bantz et al.
patent: 5539832 (1996-07-01), Weinstein et al.
patent: 5570366 (1996-10-01), Baker et al.
patent: 5577265 (1996-11-01), Wheatley, III
patent: 5610617 (1997-03-01), Gans et al.
patent: 5752173 (1998-05-01), Tsujimoto
patent: 5761193 (1998-06-01), Derango et al.
patent: 5761237 (1998-06-01), Petersen et al.
patent: 5812531 (1998-09-01), Cheung et al.
patent: 5848105 (1998-12-01), Gardner et al.
patent: 5854611 (1998-12-01), Gans et al.
patent: 5898679 (1999-04-01), Brederveld et al.
patent: 5912921 (1999-06-01), Warren et al.
patent: 5924020 (1999-07-01), Forssen et al.
patent: 5930248 (1999-07-01), Langlet et al.
patent: 5982327 (1999-11-01), Vook et al.
patent: 6008760 (1999-12-01), Shattil
patent: 6023625 (2000-02-01), Myers, Jr.
patent: 6037898 (2000-03-01), Parish et al.
patent: 6038272 (2000-03-01), Golden et al.
patent: 6044120 (2000-03-01), Bar-David et al.
patent: 6058105 (2000-05-01), Hochwald et al.
patent: 6064338 (2000-05-01), Kobayakawa et al.
patent: 6091934 (2000-07-01), Berman et al.
patent: 6097771 (2000-08-01), Foschini
patent: 6118788 (2000-09-01), Kermani
patent: 6122260 (2000-09-01), Liu et al.
patent: 6124824 (2000-09-01), Xu et al.
patent: 6128986 (2000-10-01), Tsuzaki et al.
patent: 6141393 (2000-10-01), Thomas et al.
patent: 6141567 (2000-10-01), Youssefmir et al.
patent: 6144651 (2000-11-01), Rinchiuso et al.
patent: 6144711 (2000-11-01), Raleigh et al.
patent: 6147985 (2000-11-01), Bar-David et al.
patent: 6157340 (2000-12-01), Xu et al.
patent: 6157843 (2000-12-01), Derango et al.
patent: 6177906 (2001-01-01), Petrus
patent: 6185440 (2001-02-01), Barratt et al.
patent: 6195045 (2001-02-01), Xu et al.
patent: 6211671 (2001-04-01), Shattil
patent: 6252548 (2001-06-01), Jeon
patent: 6252884 (2001-06-01), Hunter
patent: 6266528 (2001-07-01), Farzaneh
patent: 6295026 (2001-09-01), Chen et al.
patent: 6298092 (2001-10-01), Heath, Jr.
patent: 6307882 (2001-10-01), Marzetta
patent: 6317466 (2001-11-01), Foschini et al.
patent: 6327310 (2001-12-01), Hochwald et al.
patent: 6331837 (2001-12-01), Shattil
patent: 6349219 (2002-02-01), Hochwald et al.
patent: 6351499 (2002-02-01), Paulraj et al.
patent: 6362781 (2002-03-01), Thomas et al.
patent: 6369758 (2002-04-01), Zhang
patent: 6370182 (2002-04-01), Bierly et al.
patent: 6377631 (2002-04-01), Raleigh
patent: 6377636 (2002-04-01), Paulraj et al.
patent: 6377819 (2002-04-01), Gesbert et al.
patent: 6400699 (2002-06-01), Airy et al.
patent: 6400780 (2002-06-01), Rashid-Farrokhi et al.
patent: 6442214 (2002-08-01), Boleskei et al.
patent: 6462709 (2002-10-01), Choi
patent: 6463295 (2002-10-01), Yun
patent: 6473467 (2002-10-01), Wallace et al.
patent: 6522898 (2003-02-01), Kohno et al.
patent: 6549786 (2003-04-01), Cheung
patent: 6570929 (2003-05-01), Eriksson
patent: 6584161 (2003-06-01), Hottinen
patent: 6636568 (2003-10-01), Kadous
patent: 6646600 (2003-11-01), Vail et al.
patent: 6684064 (2004-01-01), Kazakevich et al.
patent: 6687492 (2004-02-01), Sugar et al.
patent: 6728294 (2004-04-01), Kohno et al.
patent: 6728517 (2004-04-01), Sugar et al.
patent: 6792033 (2004-09-01), Maruta et al.
patent: 6862271 (2005-03-01), Medvedev et al.
patent: 6873606 (2005-03-01), Agrawal et al.
patent: 6873651 (2005-03-01), Tesfai et al.
patent: 6888878 (2005-05-01), Prysby et al.
patent: 6901122 (2005-05-01), Nadgauda et al.
patent: 6940917 (2005-09-01), Menon et al.
patent: 6956907 (2005-10-01), Ketchum
patent: 6965762 (2005-11-01), Sugar et al.
patent: 6980600 (2005-12-01), Ratnarajah
patent: 7031368 (2006-04-01), Maruta et al.
patent: 7342875 (2008-03-01), Hammons et al.
patent: 2001/0012764 (2001-08-01), Edwards et al.
patent: 2001/0015994 (2001-08-01), Nam
patent: 2001/0046255 (2001-11-01), Shattil
patent: 2001/0053143 (2001-12-01), Li et al.
patent: 2002/0001316 (2002-01-01), Hornsby et al.
patent: 2002/0024975 (2002-02-01), Hendler
patent: 2002/0034191 (2002-03-01), Shattil
patent: 2002/0039884 (2002-04-01), Raynes et al.
patent: 2002/0045435 (2002-04-01), Fantaske
patent: 2002/0064246 (2002-05-01), Kelkar et al.
patent: 2002/0067309 (2002-06-01), Baker et al.
patent: 2002/0072392 (2002-06-01), Awater et al.
patent: 2002/0085643 (2002-07-01), Kitchener et al.
patent: 2002/0102950 (2002-08-01), Gore et al.
patent: 2002/0111142 (2002-08-01), Klimovitch
patent: 2002/0118781 (2002-08-01), Thomas et al.
patent: 2002/0122383 (2002-09-01), Wu et al.
patent: 2002/0122501 (2002-09-01), Awater et al.
patent: 2002/0127978 (2002-09-01), Khatri
patent: 2002/0136170 (2002-09-01), Struhsaker
patent: 2002/0141355 (2002-10-01), Struhsaker et al.
patent: 2002/0147032 (2002-10-01), Yoon et al.
patent: 2002/0158801 (2002-10-01), Crilly, Jr. et al.
patent: 2002/0159537 (2002-10-01), Crilly, Jr.
patent: 2002/0172186 (2002-11-01), Larsson
patent: 2002/0172269 (2002-11-01), Xu
patent: 2002/0196842 (2002-12-01), Onggosanusi et al.
patent: 2003/0002450 (2003-01-01), Jalali et al.
patent: 2003/0022693 (2003-01-01), Gerogiokas et al.
patent: 2003/0032423 (2003-02-01), Boros et al.
patent: 2003/0048761 (2003-03-01), Jarett
patent: 2003/0108117 (2003-06-01), Ketchum et al.
patent: 2003/0114108 (2003-06-01), Frecassetti et al.
patent: 2003/0125090 (2003-07-01), Zeira
patent: 2003/0139194 (2003-07-01), Onggosanusi et al.
patent: 2003/0157954 (2003-08-01), Medvedev et al.
patent: 2003/0181165 (2003-09-01), Sugar et al.
patent: 2004/0072546 (2004-04-01), Sugar et al.
patent: 2004/0104839 (2004-06-01), Valazquez et al.
patent: 01/45300 (2001-06-01), None
patent: 02/03568 (2002-01-01), None
Iserte et al., “Pre-and Post-Beamforming in MIMO Channels Applied to HIPERLAN/2 and OFDM”, IST Summit 2001, IST Mobile Communications Summit, Sep. 2001.
Iserte et al., “Joint Beamforming Strategies in OFDM-MIMO Systems”, ICASSP 2002, IEEE International Conference on Acoustics, Speech and Signal Processing, May 2002.
Lee et al., “Antenna Diversity for an OFDM System in a Fading Channel”, Proceeding of IEEE MILCOM 1999, Nov. 1999, pp. 1104-1109.
Jakes, “Microwave Mobile Communications”, Copyright 1974, pp. 313-320 and pp. 489-498.
Jungnickel et al., “A MIMO WLAN Based on Linear Channel Inversion”, IEE Seminar-MIMO Communication Systems from Concept TO Implementation, Dec. 2001, pp. 20/1-20/6.
Stridh et al., “Spatial Characterization of Indoor Radio Channel Measurements at 5 GHz”, SAM 2000, Mar. 2000, pp. 58-62.
Irmer et al., “MISO Concepts for Frequency-Selective Channels”, 2002 International Zurich Seminar on Broadband Communications Access, Feb. 19-21, 2002.
Choi et al., “MISO CDMA Transmission with Simplified Receiver for Wireless Communication Handsets”, IEEE Transactions on Communications, vol. 49, No. 5, May 2002.
Meyer-Ottens, et al. “Downlink Beamforming for W-CDMA Using Feedback and Interference Estimate”, Mar. 9, 2001.
Yang et al., “On Joint Transmitter and Receive Optimization for Multiple-Input-Mult
Sugar Gary L.
Tesfai Yohannes
Vaidyanathan Chandra
IPR Licensing Inc.
Le Nhan T
Volpe and Koenig P.C.
LandOfFree
Apparatus for antenna diversity using joint maximal ratio... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for antenna diversity using joint maximal ratio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for antenna diversity using joint maximal ratio... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4069287