Multiplex communications – Generalized orthogonal or special mathematical techniques
Reexamination Certificate
2003-10-23
2011-11-22
Levitan, Dmitry H (Department: 2461)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Reexamination Certificate
active
08064325
ABSTRACT:
According to example embodiments for use in a communication system that is adapted to permit the users to transmit data simultaneously via shared frequency and spatial resources, an allocation of user transmission rates involves setting and maintaining the transmission rates of the users to at least a minimum user transmission rate to provide an expected minimum quality of communication for each of the users. These rates of the users are incrementally adjusted by iteratively changing the transmission rate of each user as a function of a resulting vector of transmit powers ensuing from the increased transmission rate, a degree of transmission-rate-allocation unfairness relative to the transmission rates of all the users, and a power-based selection criteria. With such an approach, the rates are fairly allocated without a disproportionate allocation of system bandwidth. Various embodiments are applicable to a variety of communication applications including OFDM or CDMA communication systems.
REFERENCES:
patent: 5671218 (1997-09-01), I et al.
patent: 5914950 (1999-06-01), Tiedemann et al.
patent: 5923650 (1999-07-01), Chen et al.
patent: 6005855 (1999-12-01), Zehavi et al.
patent: 6335922 (2002-01-01), Tiedemann et al.
patent: 6563810 (2003-05-01), Corazza
patent: 6662024 (2003-12-01), Walton et al.
patent: 7116652 (2006-10-01), Lozano
patent: 7167487 (2007-01-01), Herrmann
patent: 2002/0136397 (2002-09-01), Zeng et al.
patent: 2003/0086362 (2003-05-01), Hasegawa et al.
IEEE Dictionary of IEEE standard terms, IEEE, 2000, pp. 1, 2 and 1249.
A. Agrawal and J. Ciotti, “Power Control for Multiuser Space-Time CDMA,” GLOBECOM 2002.
Agrawal Avneesh
Cioffi John M.
Crawford & Maunu PLLC
Levitan Dmitry H
The Board of Trustees of the Leland Stanford Junior University
LandOfFree
Concurrent frequency-sharing multi-user communication system... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concurrent frequency-sharing multi-user communication system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concurrent frequency-sharing multi-user communication system... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4312387