Dynamic power control for a TDMA based air interface
First Claim
1. A method of attenuating downlink transmit power to transmit a frame of data in a wireless network, each frame composed of timeslots, each timeslot composed of quarter symbols, comprising:
- (a) mapping each quarter symbol of a frame to an offset within a frame attenuation buffer;
(b) computing a template for the frame;
(c) providing attenuation values for each quarter symbol, the provided attenuation values being grouped in blocks;
(d) recursively copying blocks of attenuation values into the frame attenuation buffer based on the template; and
(e) attenuating transmit power of the frame based on contents of the frame attenuation buffer.
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Accused Products
Abstract
The method provides power control in transmitting a downlink signal of frame data in a wireless network. Each frame is composed of timeslots, with each timeslot being further composed of quarter symbols. The method includes mapping each quarter symbol to an offset within a frame attenuation buffer, and computing a template for the frame, each step being performed only once. The template is used for filling the attenuation buffer with attenuation values to attenuate the transmit power for the downlink signal. Attenuation values are provided for each quarter symbol in a frame, although a computation is not required for each quarter symbol. The attenuation values are grouped in blocks that are recursively copied into the frame attenuation buffer based on the template. The contents of a filled attenuation buffer are output for use in attenuating the transmit power of the frame.
9 Citations
30 Claims
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1. A method of attenuating downlink transmit power to transmit a frame of data in a wireless network, each frame composed of timeslots, each timeslot composed of quarter symbols, comprising:
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(a) mapping each quarter symbol of a frame to an offset within a frame attenuation buffer; (b) computing a template for the frame; (c) providing attenuation values for each quarter symbol, the provided attenuation values being grouped in blocks; (d) recursively copying blocks of attenuation values into the frame attenuation buffer based on the template; and (e) attenuating transmit power of the frame based on contents of the frame attenuation buffer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus for attenuating downlink transmit power to transmit a frame of data in a wireless network, each frame composed of timeslots, each timeslot composed of quarter symbols, comprising:
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a buffer for storing attenuation values to be used in attenuating transmit power of the frame; a processor for mapping each quarter symbol to an offset within the buffer, for computing a template to be used for filling the buffer, for providing attenuation values for each quarter symbol in the buffer, the provided attenuation values being grouped in blocks, and for recursively copying blocks of attenuation values into the buffer based on the template; and a controller for outputting contents of the buffer to attenuate transmit power of the frame. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification