Wireless communication systems and methods for contiguously addressable memory enabled multiple processor based multiple user detection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 18, 2008
Grant Date -
Oct 23, 2003
app pub date -
Mar 14, 2002
filing date -
Mar 14, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, 'gamma matrix') that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, 'R-matrix') that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third procesing element produces estimates of the user transmitted symbols as a function of the R-matrix.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully