Power control apparatus, and associated method, for a sending station of a communication system
First Claim
1. In a communication system having a sending station operable to send a burst data signal upon a communication channel during at least a selected interval, the burst data signal including an envelope varying component portion and an envelope nonvarying component portion, an improvement of power control apparatus for controlling power levels at which the burst data signal is sent, said power control apparatus comprising:
- a comparator coupled to receive indications of actual power levels at which the burst data signal is sent, said comparator at least selectably operable for comparing values of the indications of the actual power levels with values of specified power levels and for generating a power-level change command signal responses thereto; and
a power-change effectuator coupled to said comparator, said power change effectuator at least selectably operable to permit effectuation of change in the actual power levels at which the burst data signal is sent, said power change effectuator operable to permit effectuation of changes of the actual power levels at which the burst data signal is sent when the indications of the actual power levels at which the burst data signal is sent to which said comparator is coupled to receive are of the envelope-nonvarying portion of the burst data signal.
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Accused Products
Abstract
Apparatus, and an associated method, for controlling the power levels at which an EDGE-modulated signal, or other signal which includes envelope varying-portions, during operation of a communication system. Changes in the power levels of the EDGE-modulated signal are permitted when closed-loop power control is done on nonamplitude-modulated component portions of the signal. Changes in the power levels of the EDGE-modulated signal are prevented by open-loop power control on amplitude-modulated component portion of the signal.
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Citations
20 Claims
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1. In a communication system having a sending station operable to send a burst data signal upon a communication channel during at least a selected interval, the burst data signal including an envelope varying component portion and an envelope nonvarying component portion, an improvement of power control apparatus for controlling power levels at which the burst data signal is sent, said power control apparatus comprising:
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a comparator coupled to receive indications of actual power levels at which the burst data signal is sent, said comparator at least selectably operable for comparing values of the indications of the actual power levels with values of specified power levels and for generating a power-level change command signal responses thereto; and
a power-change effectuator coupled to said comparator, said power change effectuator at least selectably operable to permit effectuation of change in the actual power levels at which the burst data signal is sent, said power change effectuator operable to permit effectuation of changes of the actual power levels at which the burst data signal is sent when the indications of the actual power levels at which the burst data signal is sent to which said comparator is coupled to receive are of the envelope-nonvarying portion of the burst data signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20)
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16. In a method of communicating in a communication system having a sending station operable to send a burst data signal upon a communication channel during at least a selected interval, the burst data signal including an envelope varying component portion and an envelope-nonvarying component portion, an improvement of a method for controlling power levels at which the burst data signal is sent, said method comprising:
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comparing values of indications of actual power levels at which the burst data signal is sent with values of specified power levels;
generating a power-level change command responsive to comparisons made during said operation of comparing; and
selectably permitting effectuation of changes of the actual power levels at which the burst data signal is sent in manners corresponding to the power-level change command when the indications of the actual power levels at which the burst data signal is sent are of the envelop-nonvarying portion of the burst data signal.
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Specification