Telecommunications – Transmitter and receiver at separate stations – With control signal
Reexamination Certificate
2007-07-17
2007-07-17
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
With control signal
C455S115100
Reexamination Certificate
active
10800610
ABSTRACT:
An equal gain composite beamforming technique which constrains that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain CBF.
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: 5507055 (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: 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
patent: 6044120 (2000-03-01), Bar-David et al.
patent: 6058105 (2000-05-01), Hochwald 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: 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: 6862271 (2005-03-01), Medvedev et al.
patent: 6873606 (2005-03-01), Agrawal et al.
patent: 6940917 (2005-09-01), Menon et al.
patent: 6956907 (2005-10-01), Ketchum
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), Homsby 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: 2002/0064246 (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: 01/45300 (2001-06-01), None
patent: 02/03568 (2002-01-01), None
patent: WO 02/03568 (2002-01-01), None
patent: WO 01/45300 (2002-06-01), None
Briesemeister et al., “Role-Based Multicast in Highly Mobile but Sparsely Connect Ad-Hoc Networks”; First Annual Workshop on Mobile Ad Hoc Networking & Computing; pp. 45-50; Aug. 2000.
Bablan et al., “Optimum Diversity Combining and Equalization in Digital Data Transmission with Applications to Cellular Mobile Radio-Part II: Numerical Results”; May 1992; IEEE Transactions on Communications, vol. 30, No. 5; pp. 895-907.
PCT Search Report from counterpart PCT application No. PCT/US03/05644 filed Feb. 26, 2003.
Iserte, Antonio Pascual 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, Antonio Pascual et al., “Joint Beamforming Strategies in OFDM-MIMO Systems,” ICASSP 2002 (IEEE International Conference on Acoustics, Speech and Signal Processing), May 2002.
Lee, Dennis et al., “Antenna Diversity for an OFDM System in a Fading Channel,” Proceeding of IEEE MILCOM 1999, Nov. 1999, pp. 1104-1109.
Jakes, William C., “Microwave Mobile Communications,” Copyright 1974, pp. 313-320 and 489-498.
Yeh, Y.S., “An Analysis of Adaptive Retransmission Arrays in a Fading Environment,” The Bell System Technical Journal, Oct. 1970, pp. 1811-1825.
Morgan, Samuel P., “Interaction of Adaptive Antenna Arrays in an Arbitrary Environment,” The Bell System Technical Journal, Jan. 1965, pp. 23-47.
Aziz, Abdul M.K. et al., “Indoor Throughput and Range Improvements using Standard Compliant AP Antenna Diversity in IEEE 802.11a and ETSI HIPERLAN/2,” Vehicular Technology Conference, 2002, VTC 2001, Oct. 7-11, 2001, IEEE VTS 54th, vol. 4, pp. 2294-2298.
Iserte, Antonio Pascual et al., “Iterative Algorithm for the Estimation of Distributed Sources Localization Parameters,” SSP 2001 (11thIEEE Workshop on Statistical Signal Processing), Aug. 2001.
Heath, Robert W., Jr., “A Simple Scheme for Transmit Diversity Using Partial Channel Feedback,” Signals, Systems & Computers, Conference Record of the Thirty-Second Asilomar Conference Nov. 1-4, 1998, vol. 2, pp. 1073-1078.
Irmer, Ralf et a
Sugar Gary L.
Vaidyanathan Chandra
IPR Licensing Inc.
Jackson Blane J.
Urban Edward F.
Volpe and Koenig P.C.
LandOfFree
System and method for antenna diversity using equal power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for antenna diversity using equal power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for antenna diversity using equal power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3821131