Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-06-27
2006-06-27
Perez-Gutierrez, Rafael (Department: 2686)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456500, C455S517000, C455S070000, C340S010420, C340S010200, C340S870030, C342S450000, C370S445000
Reexamination Certificate
active
07069025
ABSTRACT:
The location of unmodified wireless assets in a wireless communication network may be identified using time differences of arrivals of a communication sequence at different network receivers. Time-stamping devices may include correlator circuits in parallel with signal decoders to time-stamp communication sequences. Cellular wireless networks may be frequency-multiplexed to increase spatial time-stamping density. Tags may be attached to passive assets to provide location identification information to network devices. Locations of assets broadcasting standard 802.11 radio frequency structures may be identified. Noise inherent in correlating a communication sequence may be reduced by using a selected correlation function.
REFERENCES:
patent: 5119104 (1992-06-01), Heller
patent: 5150310 (1992-09-01), Greenspun et al.
patent: 5365516 (1994-11-01), Jandrell
patent: 5525081 (1996-06-01), Mardeshich et al.
patent: 5526357 (1996-06-01), Jandrell
patent: 5596330 (1997-01-01), Yokev et al.
patent: 5764188 (1998-06-01), Ghosh et al.
patent: 5890068 (1999-03-01), Fattouche et al.
patent: 6121926 (2000-09-01), Belcher et al.
patent: 6127976 (2000-10-01), Boyd et al.
patent: 6150921 (2000-11-01), Werb et al.
patent: 6268723 (2001-07-01), Hash et al.
patent: 6308428 (2001-10-01), Creighton, III
patent: 6317082 (2001-11-01), Bacon et al.
patent: 6459704 (2002-10-01), Jandrell
patent: 0748084 (1996-11-01), None
patent: 98/16849 (1998-04-01), None
patent: 99/67737 (1999-12-01), None
patent: 00/11590 (2000-03-01), None
patent: 00/14561 (2000-03-01), None
patent: 00/23956 (2000-04-01), None
patent: 00/46771 (2000-08-01), None
patent: 00/48016 (2000-08-01), None
patent: 00/52498 (2000-09-01), None
patent: 01/06401 (2001-01-01), None
patent: 01/07928 (2001-02-01), None
patent: 01/15070 (2001-03-01), None
patent: 01/29574 (2001-04-01), None
patent: 01/43419 (2001-06-01), None
patent: 01/50299 (2001-07-01), None
patent: 01/61465 (2001-08-01), None
patent: 01/61883 (2001-08-01), None
patent: 01/67128 (2001-09-01), None
patent: 0167043 (2001-09-01), None
patent: 0167341 (2001-09-01), None
patent: 01/74021 (2001-10-01), None
patent: 01/82520 (2001-11-01), None
patent: 0182520 (2001-11-01), None
“IEEE Standard Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification. (ISO/IEC 8802-11, ANSI/IEEE STD 802.11-1999) Chapter 7: Frame Formats” ISO/IEC 8802-11, ANSI/IEEE STD 802.11, Aug. 20, 1999 pp. 34-58, XP002206839 pp. 42-43, Paragraph 7.2.1.4 Figure 19.
“IEEE Standard Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification. (ISO/IEC 8802-11, ANSI/IEEE STD 802.11-1999) Chapter 9: MAC Sublayer Functional Description” ISO/IEC 8802-11, ANSI/IEEE STD 802.11, Aug. 20, 1999 pp. 70-97, XP002207974 pp. 70, Paragraph 9-Page 76, Paragraph 9.2.4.
“IEEE Standard Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification. (ISO/IEC 8802-11, ANSI/IEEE STD 802.11-1999) Chapter 11: MAC Sublayer Management Entity” ISO/IEC 8802-11, ANSI/IEEE STD 802.11, Aug. 20, 1999, pp. 123-137, XP002207975 p. 125, Paragraph 11.2.2.4; Figures 67, 68; Table 23.
“IEEE Standard Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification. (ISO/IEC 8802-11, ANSI/IEEE STD 802.11-1999) Chapter 14: Frequency-Hopping Spread Spectrum (FHSS) PHY Specification for the 2.4 GHz . . . ” ISO/IEC 8802-11, ANSI/IEEE STD 802.11, Aug. 20, 1999 pp. 148-194, XP002207976 pp. 157, Paragraph 14.3.3.2-p. 160, Paragraph 14.3.3.2.2; Figures 77, 78.
“IEEE Standard Part 11: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification. (ISO/IEC 8802-11, ANSI/IEEE STD 802.11-1999) Chapter 15: Direct Sequence Spread Spectrum (DSSS) PHY Specification for the 2.4 GHz Band . . . ” pp. 223, Paragraph 15.4.8.4.
Goren David P.
Hook Christopher D
Baker & Botts LLP
Perez-Gutierrez Rafael
Symbol Technologies Inc.
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