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Title:
SPATIAL INTERFERENCE MITIGATION FOR WIRELESS COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2009/140633
Kind Code:
A3
Abstract:
Techniques for transmitting and receiving data with spatial interference mitigation in a wireless network are described. In one design of transmitting data with spatial interference mitigation, a first station (e.g., a cell) may receive spatial feedback information (SFI) from a second station (e.g., an interfered UE) that is not communicating with the first station. The second station may also receive precoding information from a third station (e.g., a served UE). The first station may send a data transmission to the third station based on the precoding information and the SFI in order to reduce interference to the second station. In one design, the SFI may include spatial nulling information. The first station may send the data transmission based on the spatial nulling information to steer the data transmission in a direction away from the second station.

Inventors:
GOROKHOV ALEXEI Y (US)
Application Number:
PCT/US2009/044204
Publication Date:
August 19, 2010
Filing Date:
May 15, 2009
Export Citation:
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Assignee:
QUALCOMM INC (US)
GOROKHOV ALEXEI Y (US)
International Classes:
H04L25/02; H04B7/06; H04B7/26; H04L1/00; H04L1/06; H04L25/03; H04W88/04; H04L5/00
Foreign References:
EP1267443A22002-12-18
US20070147536A12007-06-28
US20060093065A12006-05-04
US20030020651A12003-01-30
Other References:
CHENG WANG ET AL: "Investigation into MU-MISO transmission with limited feedback", IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, 3 April 2006 (2006-04-03), IEEE, PISCATAWAY, NJ, USA, pages 2035 - 2039, XP031387508, ISBN: 978-1-4244-0269-4
LAL C GODARA: "Application of Antenna Arrays to Mobile Communications, Part II: Beam-Forming and Direction-of-Arrival Considerations", PROCEEDINGS OF THE IEEE, vol. 85, no. 8, 1 August 1997 (1997-08-01), IEEE, NEW YORK, US, pages 1195 - 1245, XP011043875, ISSN: 0018-9219, DOI: LNKD- DOI:10.1109/5.622504
TAMER ELBATT: "Towards Scheduling MIMO Links in Interference-Limited Wireless Ad Hoc Networks", IEEE MILITARY COMMUNICATIONS CONFERENCE, 29 October 2007 (2007-10-29), IEEE, PISCATAWAY, NJ, USA, pages 1 - 7, XP031232633, ISBN: 978-1-4244-1512-0
Attorney, Agent or Firm:
CORIE, Florin C. (5775 Morehouse DriveSan Diego, Califonia, US)
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