Tuesday, October 06, 2009 8:30:28 AM
Ozluturk , et al. October 6, 2009
Method and apparatus for reducing antenna correlation
Abstract
The present invention is related to a method and apparatus for reducing antenna correlation between multiple antennas. A transmitter generates at least two beams with a plurality of antennas. The generated beams are spatially separated to point away each other. Therefore, the transmitted signals travel through different channel conditions and arrive at a receiver mutually uncorrelated. The beams may be generated by antennas having different antenna pattern, or by an array antenna. The beams may be polarized differently. The schemes may be implemented on a subcarrier basis in an orthogonal frequency division multiplexing (OFDM) system. Trellis coded mapping may be utilized for adjacent symbols to be mapped to antennas with low correlation.
Inventors: Ozluturk; Fatih (Port Washington, NY), Pietraski; Philip J. (Huntington Station, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/202,570
Filed: August 12, 2005
Related U.S. Patent Documents
Application Number Filing Date Patent Number Issue Date
60601674 Aug., 2004
Current U.S. Class: 455/101 ; 455/107; 455/121; 455/562.1
Current International Class: H04B 1/02 (20060101)
Field of Search: 455/101,277.1,562.1,67.16,121,107 375/347
Gamco
Recent IDCC News
- InterDigital Announces Financial Results for First Quarter 2024 • GlobeNewswire Inc. • 05/02/2024 12:30:08 PM
- InterDigital awarded injunction against Lenovo • GlobeNewswire Inc. • 05/02/2024 12:30:00 PM
- InterDigital’s Doug Castor Elected Co-Chair of the ATIS Next G Alliance Steering Group • GlobeNewswire Inc. • 04/29/2024 08:00:00 AM
- New Report Pins 6G Success on Novel Benchmarks Extending Beyond Speed, Latency, and Mobility • GlobeNewswire Inc. • 04/25/2024 08:00:00 AM
- InterDigital Announces Date for First Quarter 2024 Financial Results • GlobeNewswire Inc. • 04/19/2024 12:30:00 PM
- InterDigital and Concordia University Announce Research Collaboration on AI-enabled Immersive Media Delivery over 5G Networks • GlobeNewswire Inc. • 04/15/2024 08:00:00 AM
- InterDigital Announces Convertibility of 3.50% Senior Convertible Notes Due 2027 • GlobeNewswire Inc. • 04/04/2024 12:30:00 PM
- InterDigital to Showcase Innovations in High Definition and Sustainable Video Streaming Alongside Partners at NAB 2024 • GlobeNewswire Inc. • 03/26/2024 08:00:00 AM
- InterDigital Declares Regular Quarterly Cash Dividend • GlobeNewswire Inc. • 03/20/2024 08:30:00 PM
- InterDigital’s Xiaofei Wang Appointed Chair of the IEEE 802.11 Artificial Intelligence and Machine Learning (AIML) Standing Committee • GlobeNewswire Inc. • 03/20/2024 08:00:00 AM
- Interdigital to Speak at the 36th Annual Roth Conference • GlobeNewswire Inc. • 03/11/2024 12:30:00 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 03/06/2024 09:58:21 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 03/05/2024 09:03:32 PM
- InterDigital’s Atle Monrad Elected Chair of 3GPP’s SA6 Working Group • GlobeNewswire Inc. • 03/05/2024 09:00:00 AM
- InterDigital Honors Wireless and Video Innovation Leaders Michael Starsinic and Fabrice Le Léannec as Inventors of the Year • GlobeNewswire Inc. • 02/22/2024 09:30:00 PM
- Keysight and InterDigital to Demonstrate AI in 6G Systems at Mobile World Congress 2024 • Business Wire • 02/21/2024 04:00:00 PM
- At MWC, InterDigital to Showcase Innovation Empowering Connected Experiences ‘At Work, At Rest, and At Play’ • GlobeNewswire Inc. • 02/19/2024 09:00:00 AM
- Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405] • Edgar (US Regulatory) • 02/15/2024 01:37:02 PM
- Form 8-K - Current report • Edgar (US Regulatory) • 02/15/2024 01:33:18 PM
- InterDigital Reports Fourth Quarter and Full Year 2023 Financial Results • GlobeNewswire Inc. • 02/15/2024 01:30:36 PM
- U.S. Futures Edge Higher Ahead of Key Economic Data Release, Oil Prices See Modest Declines • IH Market News • 02/15/2024 11:35:32 AM
- InterDigital and Broadpeak Announce Collaboration on MPEG V3C Standardized Content Distribution At Scale • GlobeNewswire Inc. • 02/13/2024 09:00:00 AM
- InterDigital appoints Ken Kaskoun as Chief Growth Officer • GlobeNewswire Inc. • 02/12/2024 01:30:00 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/07/2024 01:43:10 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 02/05/2024 09:17:26 PM
NanoViricides Reports that the Phase I NV-387 Clinical Trial is Completed Successfully and Data Lock is Expected Soon • NNVC • May 2, 2024 10:07 AM
ILUS Files Form 10-K and Provides Shareholder Update • ILUS • May 2, 2024 8:52 AM
Avant Technologies Names New CEO Following Acquisition of Healthcare Technology and Data Integration Firm • AVAI • May 2, 2024 8:00 AM
Bantec Engaged in a Letter of Intent to Acquire a Small New Jersey Based Manufacturing Company • BANT • May 1, 2024 10:00 AM
Cannabix Technologies to Deliver Breath Logix Alcohol Screening Device to Australia • BLO • Apr 30, 2024 8:53 AM
Hydromer, Inc. Reports Preliminary Unaudited Financial Results for First Quarter 2024 • HYDI • Apr 29, 2024 9:10 AM