Tuesday, February 22, 2011 9:07:37 AM
Kostanic February 22, 2011
--------------------------------------------------------------------------------
Method and apparatus for performing blind signal separation in an OFDM MIMO system
Abstract
A method and apparatus for performing blind signal separation in an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) system are disclosed. A transmitter generates a plurality of spatial streams of data and transmits the spatial streams via a plurality of transmit antennas. A receiver receives the transmitted spatial data streams with a plurality of receive antennas and generates a plurality of receive data streams. The receiver performs a discrete Fourier transform (DFT) on each of the receive data streams to generate a plurality of frequency domain data streams. The receiver then performs a blind signal separation on the frequency domain data streams to recover spatial streams transmitted by the transmitter. The blind signal separation may be performed by using an independent component analysis (ICA) in the complex domain. The blind signal separation may be performed individually for each OFDM subcarrier.
--------------------------------------------------------------------------------
Inventors: Kostanic; Ivica (Palm Bay, FL)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/739,181
Filed: April 24, 2007
--------------------------------------------------------------------------------
Related U.S. Patent Documents
--------------------------------------------------------------------------------
Application Number Filing Date Patent Number Issue Date
60795298 Apr., 2006
--------------------------------------------------------------------------------
Current U.S. Class: 342/378 ; 342/373; 375/130; 375/260; 375/267; 375/316; 706/20
Current International Class: G01S 3/16 (20060101)
Field of Search: 375/316,267,260 702/190 706/20,190 708/205 704/233 455/306 342/378,373 250/282
PPP
"Intellectuals solve problems; geniuses prevent them." - Albert Einstein
Recent IDCC News
- InterDigital Wins Two CSI Awards for Best Immersive Video and Video Processing Technology • GlobeNewswire Inc. • 09/16/2024 12:30:00 PM
- InterDigital Announces Annual Recurring Revenue Target Of $1 Billion By 2030 • GlobeNewswire Inc. • 09/16/2024 12:00:00 PM
- Interdigital Announces Increase of Regular Quarterly Cash Dividend • GlobeNewswire Inc. • 09/10/2024 12:00:00 PM
- At 6GSymposium, InterDigital to Lead Crucial Discussions on Emerging Use Cases and Avenues Towards 6G Profitability • GlobeNewswire Inc. • 09/09/2024 08:00:00 AM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 09/06/2024 08:05:00 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 09/05/2024 08:01:37 PM
- InterDigital to Showcase Excellence in Broadcast and Immersive Video Solutions at IBC 2024 • GlobeNewswire Inc. • 08/29/2024 08:00:00 AM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 08/22/2024 12:17:49 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 08/20/2024 08:06:55 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 08/20/2024 01:05:55 PM
- More than half of connected devices will be haptic enabled by 2028, revealing exciting opportunity for immersive video • GlobeNewswire Inc. • 08/20/2024 08:00:00 AM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 08/19/2024 08:19:03 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 08/19/2024 12:28:06 PM
- InterDigital Announces 2024 Investor Day • GlobeNewswire Inc. • 08/01/2024 12:45:00 PM
- Form 10-Q - Quarterly report [Sections 13 or 15(d)] • Edgar (US Regulatory) • 08/01/2024 12:35:02 PM
- Form 8-K - Current report • Edgar (US Regulatory) • 08/01/2024 12:32:54 PM
- Interdigital Announces Financial Results for Second Quarter 2024 • GlobeNewswire Inc. • 08/01/2024 12:30:21 PM
- InterDigital signs license agreement with Panasonic • GlobeNewswire Inc. • 08/01/2024 08:30:00 AM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:52:36 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:48:39 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:47:00 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:45:22 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:40:30 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:37:32 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 07/26/2024 12:31:56 PM
VHAI - Vocodia Partners with Leading Political Super PACs to Revolutionize Fundraising Efforts • VHAI • Sep 19, 2024 11:48 AM
Dear Cashmere Group Holding Co. AKA Swifty Global Signs Binding Letter of Intent to be Acquired by Signing Day Sports • DRCR • Sep 19, 2024 10:26 AM
HealthLynked Launches Virtual Urgent Care Through Partnership with Lyric Health. • HLYK • Sep 19, 2024 8:00 AM
Element79 Gold Corp. Appoints Kevin Arias as Advisor to the Board of Directors, Strengthening Strategic Leadership • ELMGF • Sep 18, 2024 10:29 AM
Mawson Finland Limited Further Expands the Known Mineralized Zones at Rajapalot: Palokas step-out drills 7 metres @ 9.1 g/t gold & 706 ppm cobalt • MFL • Sep 17, 2024 9:02 AM
PickleJar Announces Integration With OptCulture to Deliver Holistic Fan Experiences at Venue Point of Sale • PKLE • Sep 17, 2024 8:00 AM