Modulation scheme management

Details Modulation scheme management Modulation scheme management

2004-06-01

2008-12-30

Tran, Tuan A (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

With control signal

C455S068000, C455S561000, C455S101000, C455S102000, C455S067110, C455S067130, C455S452100, C455S452200, C370S252000, C370S329000, C370S332000, C370S333000, C370S465000

Reexamination Certificate

active

07471928

ABSTRACT:
The invention involves selection of modulation scheme for a mobile unit (100) having access to a link quality enhancing algorithm (130) operable only on data modulated using a subset of the available modulation schemes. The mobile unit (100) performs signal quality measurements on a communications link (410), over which data modulated with a first modulation scheme is communicated. A link quality measure is then determined for this first modulation. A quality enhancement due to operation of the algorithm (130) is also determined. This quality measure and the quality enhancement are used for generating decision information, which is reported to the network (200). There the information is used for estimating link quality measure(s) of currently non-employed modulation(s) for the mobile unit (100). The selection of a modulation scheme for the communications link is then performed based on the decision information and the estimated quality measure(s).

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