Multiplex communications – Duplex – Communication over free space
Reissue Patent
2011-01-25
2011-01-25
Ly, Anh-Vu (Department: 2472)
Multiplex communications
Duplex
Communication over free space
C370S281000, C370S277000, C370S329000, C370S330000, C455S446000, C455S447000
Reissue Patent
active
RE042068
ABSTRACT:
The present invention is a method and apparatus for reducing co-channel interference. The present invention includes a powerful means for eliminating co-channel interference from base stations in a wireless communication system. The present co-channel interference reducing method and apparatus utilizes frame synchronization between selected time frames (e.g., odd and even time frames) to reduce co-channel interference. Advantageously, the present invention reduces co-channel interference and, thus, allows robust modulation schemes to operate even at worst case line-of-sight (LoS) interference scenarios of 100%. The present invention can also use an uplink/downlink ratio formula to further improve system capacity (i.e., reduce co-channel interference) in ATDD systems. The present inventive method and apparatus can be used in any type of frame based and frame synchronized communication system.
REFERENCES:
patent: 5228029 (1993-07-01), Kotzin
patent: 5257398 (1993-10-01), Schaeffer
patent: 5301188 (1994-04-01), Kotzin et al.
patent: 5408496 (1995-04-01), Ritz et al.
patent: 5420851 (1995-05-01), Seshadri et al.
patent: 5448753 (1995-09-01), Ahl et al.
patent: 5485463 (1996-01-01), Godoroja
patent: 5517503 (1996-05-01), Hess
patent: 5594720 (1997-01-01), Papadoloulos et al.
patent: 5668610 (1997-09-01), Bossard et al.
patent: 5768254 (1998-06-01), Papadopoulos et al.
patent: 5774790 (1998-06-01), Dupuy
patent: 5903826 (1999-05-01), Nowak
patent: 5974323 (1999-10-01), Doner
patent: 6006069 (1999-12-01), Langston
patent: 6016311 (2000-01-01), Gilbert et al.
patent: 6016313 (2000-01-01), Foster, Jr. et al.
patent: 6038455 (2000-03-01), Gardner et al.
patent: 6256486 (2001-07-01), Barany et al.
patent: 6327254 (2001-12-01), Chuah
patent: 6339708 (2002-01-01), Wang
patent: 6400697 (2002-06-01), Leung et al.
patent: 6405044 (2002-06-01), Smith et al.
patent: 6407993 (2002-06-01), Moulsley
patent: 6493331 (2002-12-01), Walton et al.
patent: 6553011 (2003-04-01), Yan et al.
patent: 2002/0058513 (2002-05-01), Klein et al.
patent: 2002/0186710 (2002-12-01), Alvesalo et al.
patent: 2007/0111665 (2007-05-01), Klein et al.
patent: 0720405 (1996-07-01), None
patent: 0720405 (1996-07-01), None
patent: 9938343 (1999-07-01), None
patent: 9939532 (1999-08-01), None
patent: 0001188 (2000-01-01), None
International Search Report mailed Oct. 22, 2001, for PCT Application No. PCT/US01/10243.
International Preliminary Examination Report mailed Jul. 10, 2002, for PCT Application No. PCT/US01/10243.
Office Action mailed Aug. 6, 2004, for Chinese Application No. 01810473.8.
Office Action mailed Jan. 26, 2007, for Chinese Application No. 200510106967.9.
Office Action mailed Sep. 7, 2007, for Chinese Application No. 200510106967.9.
Office Action mailed Apr. 25, 2008, for Chinese Application No. 200510106967.9.
Rejection Decision mail May 8, 2009, for Chinese Application No. 200510106967.9.
Papadopoulos, et al., “Reduction of Mixed Co-Channel Interference in Microcellular STDD Systems”, IEEE, (1995), pp. 759-763.
Office Action mailed May 8, 2003 for U.S. Appl. No. 09/539,851.
Reexamination Notification issued Apr. 30, 2010 for Chinese Application No. 200510106967.9.
Reexamination Decision for Chinese Application No. 200510106967.9, dated Sep. 16, 2010, 16 pages.
Gilbert Sheldon L.
Hadar Rami
Klein Israel Jay
Ly Anh-Vu
Schwabe Williamson & Wyatt P.C.
LandOfFree
Method and apparatus for reducing co-channel interference in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing co-channel interference in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing co-channel interference in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2662197