Forward link TDMA power control system and method
First Claim
1. A system for providing a signal within each time division of a predefined frame of signal time divisions of a same frequency with independent power level adjustment, said system comprising:
- means operable for each said time division for adjusting the power level of an input signal associated with each said time division to a predetermined magnitude maintained during said associated time division; and
means for selectively switching between each of said power level adjusted signals operable to provide said frame of signal time divisions of said same frequency including said input signal within each said associated time division having said predetermined magnitude.
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Accused Products
Abstract
A system and method are disclosed for independently adjusting the forward channel power level of each time division burst period of a frame of a time divided signal. The disclosed invention teaches the splitting of the time divided signal for provision to independently controllable circuits associated with each burst period of the frame. Each independently controllable circuit includes a controllable attenuator/amplifier and switching device. The attenuator/amplifier is operated to adjust the power level of its associated burst period to a predetermined magnitude. Thereafter, the switching device operates to direct each power adjusted burst period to be transmitted within a predetermined beam of a multi-beam antenna array.
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Citations
56 Claims
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1. A system for providing a signal within each time division of a predefined frame of signal time divisions of a same frequency with independent power level adjustment, said system comprising:
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means operable for each said time division for adjusting the power level of an input signal associated with each said time division to a predetermined magnitude maintained during said associated time division; and means for selectively switching between each of said power level adjusted signals operable to provide said frame of signal time divisions of said same frequency including said input signal within each said associated time division having said predetermined magnitude. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system having a time division input where discrete signals can occur during ones of said time divisions, wherein a predetermined number of time divisions defines a frame, said system comprising:
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means for splitting said input signal into a number of different substantially identical signals, wherein said number of signals is at least as great as the number of time divisions in said frame; means for adjusting the power level of each said split signal to result in a desired amplitude during a particular one of said time divisions; and means for selectively outputting the power level adjusted split signals to result in substantially only said particular time divisions having said desired amplitude being output. - View Dependent Claims (15, 16, 17, 18)
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19. A system having a plurality of antenna beams for receiving signals associated with time divisions of a time division signal, wherein a predetermined number of said time divisions define a frame, said system comprising:
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means for splitting the received signal at ones of said plurality of antenna beams into a number of signals, wherein said number of signals is at least as great as the number of time divisions in said frame; means associated with each said time division for adjusting the power level of ones of said split signals to result in a desired amplitude during a particular one of said time divisions; means for providing interruptible signal paths between said signal splitting means and said power level adjusting means, said interruptible signal paths being operable to provide a split signal including a received signal associated with a particular time division to said power level adjusting means associated with the particular time division; and means for recombining the power level adjusted signals. - View Dependent Claims (20, 21)
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22. A method for providing each signal within a signal component of a plurality of signal components with independent power level adjustment, said method comprising the steps of:
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splitting an input signal including said plurality of signal components to provide at least a split signal associated with each said signal component; adjusting a power level of each said split signals to a predetermined magnitude, said magnitude being maintained throughout said associated signal component, said adjusting step resulting in a power level adjusted signal associated with each split signal wherein said signal within said signal component has said predetermined magnitude; and switching between each of said power level adjusted signals to produce an output including only said signal components having said predetermined magnitude. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for independently adjusting a power component of a forward link time division signal frame for each individual receiver communicating through said time division signal frame, wherein each said receiver communicating through said time division signal frame is assigned a particular burst thereof, said apparatus comprising:
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a signal splitter having at least one input path and a plurality of output paths, a particular burst of said frame being associated with an output path of said plurality of output paths; and a plurality of attenuator/amplifiers having an input and an output, ones of said attenuator/amplifiers being coupled to ones of said output paths at said input, each of said attenuator/amplifiers operable to provide an output time division signal having a predetermined magnitude substantially throughout said particular burst associated with said output path. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An apparatus for independently adjusting a power component of each burst of a plurality of forward link time division signal frames, wherein a first frame of said plurality of frames is associated with a first radio frequency carrier frequency and a second frame of said plurality of frames is associated with a second radio frequency carrier frequency, said apparatus comprising:
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a first signal splitter having at least one input path and a plurality of output paths, wherein a particular burst of said first frame is associated with an output path of said plurality of output paths; a second signal splitter having at least one input path and a plurality of output paths, wherein a particular burst of said second frame is associated with an output path of said plurality of output paths; and a plurality of attenuator/amplifiers having an input and an output, said plurality of attenuator/amplifiers including a first set of attenuator/amplifiers and a second set of attenuator/amplifiers, wherein ones of said first set of attenuator/amplifiers are coupled to ones of said output paths of said first signal splitter at said input and ones of said second set of attenuator/amplifiers are coupled to ones of said output paths of said second signal splitter as said input, each of said attenuator/amplifiers operable to provide an output time division signal having a predetermined magnitude substantially throughout said particular burst associated with said output path. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50)
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51. A system for providing each time division of a frame including a plurality of said time divisions with autonomous power level adjustment, said system comprising:
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means for adjusting said power level, said adjusting means including independently adjustable adjusting means for each time division of said frame, each adjusting means being operable to adjust said power level of an input signal to a predetermined magnitude maintained during a respective time division, each adjusting means outputting a power level adjusted signal having said predetermined magnitude at said respective time division; means for selectively switching between each of said power level adjusted signals, said switching means including an independently switchable switching device for each time division of said frame, said switching means providing a plurality of discrete signal components, each discrete signal component comprising a different one of said respective time divisions; controller means for controlling adjustment of said adjusting means and switching of said switching means; and antenna means for transmitting said discrete signal components. - View Dependent Claims (52, 53, 54, 55, 56)
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Specification