Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-09-06
2005-09-06
Qureshi, Afsar (Department: 2667)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S441000, C370S468000, C370S479000
Reexamination Certificate
active
06940842
ABSTRACT:
A method for providing wireless communication of digital signals is provided, with the digital signals being communicated between wireless subscriber units and a base station. The digital signals are communicated using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals defined by orthogonal codes. The method includes making available a plurality of orthogonal subchannels within each CDMA RF channel. Available orthogonal subchannels are allocated on an as-needed basis for subscriber units actively sending data. An idling mode connection is provided on a reverse link for subscriber units which are powered on, but not actively sending data, by assigning a shared orthogonal subchannel to at least two different subscriber units, but utilizing different time slots of the shared orthogonal subchannel.
REFERENCES:
patent: 4577316 (1986-03-01), Schiff
patent: 4675863 (1987-06-01), Paneth et al.
patent: 4817089 (1989-03-01), Paneth et al.
patent: 4862453 (1989-08-01), West et al.
patent: 4866709 (1989-09-01), West et al.
patent: 4912705 (1990-03-01), Paneth et al.
patent: 5022024 (1991-06-01), Paneth et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5114375 (1992-05-01), Wellhausen et al.
patent: 5282222 (1994-01-01), Fattouche et al.
patent: 5325419 (1994-06-01), Connolly et al.
patent: 5412429 (1995-05-01), Glover
patent: 5414728 (1995-05-01), Zehavi
patent: 5442625 (1995-08-01), Gitlin et al.
patent: 5446727 (1995-08-01), Bruckert et al.
patent: 5481533 (1996-01-01), Honig et al.
patent: 5490136 (1996-02-01), Sereno et al.
patent: 5511068 (1996-04-01), Sato
patent: 5581575 (1996-12-01), Zehavi et al.
patent: 5585850 (1996-12-01), Schwaller
patent: 5586119 (1996-12-01), Scribano et al.
patent: 5592470 (1997-01-01), Rudrapatna et al.
patent: 5598416 (1997-01-01), Yamada et al.
patent: 5617423 (1997-04-01), Li et al.
patent: 5619492 (1997-04-01), Press et al.
patent: 5655001 (1997-08-01), Cline et al.
patent: 5657358 (1997-08-01), Panech et al.
patent: 5687194 (1997-11-01), Paneth et al.
patent: 5689502 (1997-11-01), Scott
patent: 5697059 (1997-12-01), Carney
patent: 5742592 (1998-04-01), Scholefield et al.
patent: 5745484 (1998-04-01), Scott
patent: 5758288 (1998-05-01), Dunn et al.
patent: 5790549 (1998-08-01), Dent
patent: 5802046 (1998-09-01), Scott
patent: 5828662 (1998-10-01), Jalali et al.
patent: 5959980 (1999-09-01), Scott
patent: 6049538 (2000-04-01), Scott
patent: 6058338 (2000-05-01), Agashe et al.
patent: 6094421 (2000-07-01), Scott
patent: 6094576 (2000-07-01), Hakkinen et al.
patent: 6163707 (2000-12-01), Miller
patent: 6208871 (2001-03-01), Hall et al.
patent: 6219342 (2001-04-01), Rege
patent: 6222832 (2001-04-01), Proctor
patent: 6226527 (2001-05-01), Dalsgaard et al.
patent: 6233439 (2001-05-01), Jalali
patent: 6246673 (2001-06-01), Tiedemann, Jr. et al.
patent: 6263013 (2001-07-01), Hendrickson
patent: 6269075 (2001-07-01), Tran
patent: 6353412 (2002-03-01), Soliman
patent: 6356555 (2002-03-01), Rakib et al.
patent: 0526106 (1993-02-01), None
patent: 0682423 (1995-11-01), None
patent: 0719062 (1996-06-01), None
patent: 0720309 (1996-07-01), None
patent: 2326524 (1998-12-01), None
patent: 95/08900 (1995-03-01), None
patent: 96/08934 (1996-03-01), None
patent: 96/37081 (1996-11-01), None
patent: 97/26726 (1997-07-01), None
patent: 99/31811 (1999-06-01), None
patent: 99/52306 (1999-10-01), None
patent: 99/63682 (1999-12-01), None
Melanchuk et al.,CDPD and Emerging Digital Cellular Systems, Digest of Papers of COMPCON, Computer Society Conference 1996, Santa Clara, CA, no. CONF. 41, Feb. 25, 1996, pp. 2-8, XP000628458.
Heine, The Air-Interface of GSM, in GSM Networks: Protocols, Terminology and Implementation, (MA: Artech House, Inc.), pp. 89-100 (1999).
Ovesjō, European Telecommunication Standard, SMG2 UMTS Physical Layer Expert Group, UTRA Physical Layer Descriptions FDD Parts, v0.4, Jun. 25, 1998, pp. 1-41 XP002141421.
Bell Labs Technical Journal, Lucent Technologies, vol. 2, No. 3, Summer 1997.
Puleston, PPP Protocol Spoofing Control Protocol, Global Village Communication (UK) Ltd., Feb. 1996.
Qureshi Afsar
Tantivy Communications Inc.
LandOfFree
System and method for maintaining wireless channels over a... 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 and method for maintaining wireless channels over a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for maintaining wireless channels over a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3379259