Obtaining data rates for mobile stations based on a forward...

Details Obtaining data rates for mobile stations based on a forward... Obtaining data rates for mobile stations based on a forward...

2005-12-09

2009-02-03

Nguyen, Duc (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S339000, C370S341000, C370S342000

Reexamination Certificate

active

07486645

ABSTRACT:
The present invention provides a method and an apparatus for adapting a data rate that a mobile station indicates to a base station for transmission on a forward link in a cellular system. The method comprises measuring a first value indicative of strength of at least one of a primary and a secondary pilot. The method further comprises compensating the first value indicative of strength of the pilot based on an offset to select a second value indicative of the data rate for the base station. The base station may determine an offset value for compensation and send an indication to the mobile station during the setup of the mobile station. When the mobile station connects to the base station, a measurement of a channel condition (i.e., pilot) may determine a revised data rate for transmission of a next data packet on the forward link.

REFERENCES:
patent: 6845239 (2005-01-01), Sato et al.
patent: 7142861 (2006-11-01), Murai
patent: 2004/0202146 (2004-10-01), Lee
patent: 2007/0070944 (2007-03-01), Rinne et al.
patent: 2007/0087698 (2007-04-01), Lee
“Spatial Division Multiple Access (SDMA) Impact on AT DRC Predictor”, by Shupeng Li and Ashok Rudrapatna.
“Spatial Division Multiple Access (SDMA) Enhancements for HRPD Revision B”, by Sridgar Gollamudi, et al; 2rd Generation Partnership Project 2.

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