Methods and devices for uplink load estimation

Details Methods and devices for uplink load estimation Methods and devices for uplink load estimation

2005-06-08

2010-12-07

Le, Nhan (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S069000, C455S522000

Reexamination Certificate

active

07848743

ABSTRACT:
An inherent non-observability of the thermal noise power level is circumvented by estimating an upper limit of the thermal noise power level by time evaluations. An instantaneous total received wideband power is measured in a receiver. Preferably, also an instantaneous sum of powers of all links used in the same cell is provided. A quantity (P′), preferably the difference between the instantaneous total received wideband power and the instantaneous sum of powers of all links used in the same cell, is followed (110) during a time period (TLag). A minimum value (PMIN) of that quantity is then used as an estimate of the thermal noise power level upper limit. Preferably, the time period is configured as a sliding window. An improved determination of noise rise can then be calculated and used for controlling traffic within the cell.

REFERENCES:
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patent: 7158796 (2007-01-01), Tiedemann et al.
patent: 2004/0162101 (2004-08-01), Kim
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patent: 2005/0013283 (2005-01-01), Yoon et al.
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patent: 2005/0059408 (2005-03-01), Tiedemann et al.
patent: 2005/0208952 (2005-09-01), Dietrich et al.
patent: WO 02/09326 (2002-01-01), None

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