Outer loop/weighted open loop power control

Details Outer loop/weighted open loop power control Outer loop/weighted open loop power control

2006-01-31

2006-01-31

Ghebretinsae, Temesghen (Department: 2637)

Pulse or digital communications

Spread spectrum

C375S146000, C370S347000, C455S522000, C455S069000

Reexamination Certificate

active

06993063

ABSTRACT:
A transmission power level for a user equipment in a wireless time division duplex communication system using code division multiple access is determined. An interference level is measured. A pathloss estimate is determined. A long term average of pathloss estimates is determined. A first weighting factor, α, is determined by the determined pathloss estimate, producing a weighted pathloss estimate. (1−α) is multiplied to the determined long term average of pathloss estimates, producing a weighted long term pathloss estimate. A target signal to interference ratio is provided. The target signal to interference ratio is updated using outer loop power commands. A transmission power level of the user equipment is determined by adding the weighted pathloss estimate to the weighted long term pathloss estimate to the measured interference level to the updated target signal to interference ratio to a constant value.

REFERENCES:
patent: 4868795 (1989-09-01), McDavid et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5542111 (1996-07-01), Ivanov et al.
patent: 5564074 (1996-10-01), Juntti
patent: 5839056 (1998-11-01), Hakkinen
patent: 5859838 (1999-01-01), Soliman
patent: 6101179 (2000-08-01), Soliman
patent: 6108561 (2000-08-01), Mallinckrodt
patent: 6175586 (2001-01-01), Lomp
patent: 6175745 (2001-01-01), Bringby et al.
patent: 6188678 (2001-02-01), Prescott
patent: 6373823 (2002-04-01), Chen et al.
patent: 6449462 (2002-09-01), Gunnarsson et al.
patent: 6600772 (2003-07-01), Zeira et al.
patent: 6728292 (2004-04-01), Zeira et al.
patent: 2002/0080764 (2002-06-01), Zeira et al.
patent: 2002/0080765 (2002-06-01), Zeira et al.
patent: 0462952 (1991-12-01), None
patent: 0610030 (1994-08-01), None
patent: 0682419 (1995-11-01), None
patent: 0500689 (1998-04-01), None
patent: 0500689 (1998-04-01), None
patent: 9749197 (1997-12-01), None
patent: 97/49197 (1997-12-01), None
patent: 98/45962 (1998-10-01), None
patent: 9845962 (1998-10-01), None
“Specification of Air-Interface for the 3G Mobile System”, Version 1.0, ARIB, Jan. 14, 1999.
“Combined Closed-Loop/Open-Loop Power Control Process for Time Division Duplexing”, Ariela Zeira, Sung-Hyuk Shin and Faith Ozluturk, Apr. 1999.
“Performance of Weighted Open Loop Scheme for Uplink Power Control in TDD Mode”, Ariela Zeira and Sung-Hyuk Shin, May 1999.
“Text Proposal for S1.24”, Ariela Zeira, Sung-Hyuk Shin and Stephen Dick, May 1999.
Zeira et al., “Combined Closed-Loop/Open-Loop Power Control Process for Time Division Duplexing”, Apr. 1999.
Zeira et al., “Performance of Weighted Open Loop Scheme for Uplink Power Control in TDD Mode”, May 1999.
Zeira et al., “Text Proposal for S1.24”, May 1999.

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