System for detecting collisions in a shared communications...

Details System for detecting collisions in a shared communications... System for detecting collisions in a shared communications...

2006-07-20

2009-12-01

Vu, Thong H (Department: 2419)

Multiplex communications

Channel assignment techniques

Carrier sense multiple access

C269S032000

Reexamination Certificate

active

07626996

ABSTRACT:
A system for detecting collisions in a shared communications medium, such as a TDMA medium, includes a receive path adapted to generate a first intermediate signal, a second intermediate signal, and a data symbol sequence from an input signal. A preamble detection module generates a correlation metric from the first intermediate signal. A power measurement module generates a power indication signal from the second intermediate signal. A noise measurement module generates a noise indication signal from the second intermediate signal and the data symbol sequence. A processing module is adapted to characterize the input signal as a collision for certain values of correlation metric, power indication signal, and noise indication signal.

REFERENCES:
patent: 3943513 (1976-03-01), Eberhard et al.
patent: 4063220 (1977-12-01), Metcalfe et al.
patent: 4409593 (1983-10-01), Bose
patent: 4481626 (1984-11-01), Boggs et al.
patent: 5012467 (1991-04-01), Crane
patent: 5202901 (1993-04-01), Chennakeshu et al.
patent: 5263050 (1993-11-01), Sutterlin et al.
patent: 5272700 (1993-12-01), Hansen et al.
patent: 5355374 (1994-10-01), Hester et al.
patent: 5440265 (1995-08-01), Cochran et al.
patent: 5657326 (1997-08-01), Burns et al.
patent: 5717714 (1998-02-01), Andersson et al.
patent: 5719869 (1998-02-01), Ryoo et al.
patent: 5805567 (1998-09-01), Ramesh
patent: 5909470 (1999-06-01), Barrat et al.
patent: 5940400 (1999-08-01), Eastmond et al.
patent: 5963557 (1999-10-01), Eng
patent: 5982763 (1999-11-01), Sato
patent: 5991308 (1999-11-01), Fuhrmann et al.
patent: 6044083 (2000-03-01), Citta et al.
patent: 6088406 (2000-07-01), Suzuki
patent: 6154456 (2000-11-01), Rakib et al.
patent: 6178161 (2001-01-01), Terry
patent: 6205153 (2001-03-01), Shaffer et al.
patent: 6256317 (2001-07-01), Holloway et al.
patent: 6345045 (2002-02-01), Yanagi
patent: 6370153 (2002-04-01), Eng
patent: 6385773 (2002-05-01), Schwartzman et al.
patent: 6389068 (2002-05-01), Smith et al.
patent: 6424673 (2002-07-01), Chen et al.
patent: 6442145 (2002-08-01), De Lange et al.
patent: 6493334 (2002-12-01), Krzymien et al.
patent: 6519229 (2003-02-01), Arai et al.
patent: 6529520 (2003-03-01), Lee et al.
patent: 6563460 (2003-05-01), Stilp et al.
patent: 6584147 (2003-06-01), Schaumont et al.
patent: 6614799 (2003-09-01), Gummalla et al.
patent: 6636494 (2003-10-01), Roux
patent: 6650624 (2003-11-01), Quigley et al.
patent: 6665308 (2003-12-01), Rakib et al.
patent: 6763032 (2004-07-01), Rabenko et al.
patent: 6785292 (2004-08-01), Vogel
patent: 6785564 (2004-08-01), Quigley et al.
patent: 6788734 (2004-09-01), Kober et al.
patent: 6836520 (2004-12-01), Chen et al.
patent: 6859445 (2005-02-01), Moon et al.
patent: 6898204 (2005-05-01), Trachewsky et al.
patent: 6901104 (2005-05-01), Du et al.
patent: 7050419 (2006-05-01), Azenkot et al.
patent: 7065125 (2006-06-01), Miller et al.
patent: 7095707 (2006-08-01), Rakib et al.
patent: 7104534 (2006-09-01), Currivan et al.
patent: 2001/0055311 (2001-12-01), Trachewsky et al.
patent: 0 877 511 (1998-11-01), None
patent: 1 069 554 (2001-01-01), None
Golmie et al., “A Review of Contention Resolution Algorithms for IEEE 802.14 Network”,IEEE Communications Surveys, First Quarter 1999.
Iltis et. al., “A Symbol by Symbol Multiuser Detector with Joint Amplitude and Delay Estimation”,Signals, Systems and Computers, 1992. 1992 Conference Record of the Twenty-Sixth Asilomar Conference on Oct. 26-28.
Wei-Ming, et al., “Statistically Optimized Minislot Allocation for Initial and Collision Resolution in Hybrid Fiber Coaxial Networks”,Selected Areas in Communications, IEEE Journal on, vol. 18, Issue: 9, Sep. 2000.
Wysocki, B.J., “A Method to Partially Supress ISI and MAI for DS SS CDMA Wireless Networks”,IEEE0-7803-3925-8/97, 1997.
European Search Report from European Patent Application No. 02254011.6, 3 pages, dated Sep. 19, 2003.

Affiliated with

Also associated with

Rating

System for detecting collisions in a shared communications... 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 for detecting collisions in a shared communications..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for detecting collisions in a shared communications... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4064648