Replies to post #314004 on InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,903,613
Ozluturk , et al. March 8, 2011

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Code division multiple access (CDMA) communication system


Abstract
A subscriber unit for use in a multiple access spread-spectrum communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels. The system includes a closed loop power control system for maintaining a minimum system transmit power level for a radio carrier station and the subscriber units, and system capacity management for maintaining a maximum number of active subscriber units for improved system performance.


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Inventors: Ozluturk; Fatih M. (Port Washington, NY), Jacques; Alexander (Levittown, NY), Lomp; Gary R. (Centerport, NY), Kowalski; John (Hempstead, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 10/857,463
Filed: May 28, 2004

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
09400489 Sep., 1999 6885652
08815299 Apr., 2000 6049535
08669775 Aug., 1998 5799010
60000775 Jun., 1995


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Current U.S. Class: 370/335 ; 375/147; 375/148; 455/522; 455/69
Current International Class: H04B 7/216 (20060101)
Field of Search: 370/342,335 455/522,69,67.11-67.16,423-425,450-452.2,509,512 375/145,147,148

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