WLAN capacity enhancement by contention resolution
First Claim
1. A method for communication, comprising:
- receiving signals transmitted over the air by first and second mobile stations on a common frequency channel in a wireless packet network, the signals carrying first and second data packets transmitted by the first and second mobile stations, respectively, the first and second data packets comprising respective, first and second headers;
processing the received signals so as to identify the first header;
responsively to the identified first header, reconstructing signal values corresponding to at least a portion of the first data packet;
subtracting the reconstructed signal values from the received signals so as to produce a modified signal;
processing the modified signal in order to identify the second header; and
demodulating the first and second data packets using the identified first and second headers.
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Accused Products
Abstract
A method for communication includes receiving signals transmitted over the air by first and second mobile stations on a common frequency channel in a wireless packet network, the signals carrying first and second data packets transmitted by the first and second mobile stations, respectively, the first and second data packets comprising respective, first and second headers. The received signals are processed so as to identify the first header. Responsively to the identified first header, signal values corresponding to at least a portion of the first data packet are reconstructed, and the reconstructed signal values are subtracted from the received signals so as to produce a modified signal. The modified signal is processed in order to identify the second header. The first and second data packets are demodulated using the identified first and second headers.
37 Citations
62 Claims
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1. A method for communication, comprising:
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receiving signals transmitted over the air by first and second mobile stations on a common frequency channel in a wireless packet network, the signals carrying first and second data packets transmitted by the first and second mobile stations, respectively, the first and second data packets comprising respective, first and second headers; processing the received signals so as to identify the first header; responsively to the identified first header, reconstructing signal values corresponding to at least a portion of the first data packet; subtracting the reconstructed signal values from the received signals so as to produce a modified signal; processing the modified signal in order to identify the second header; and demodulating the first and second data packets using the identified first and second headers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. Apparatus for communication, comprising:
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a radio receiver, which is adapted to receive signals transmitted over the air by first and second mobile stations on a common frequency channel in a wireless packet network, the signals carrying first and second data packets transmitted by the first and second mobile stations, respectively, the first and second data packets comprising respective, first and second headers; and signal processing circuitry, which is adapted to process the received signals so as to identify the first header, and responsively to the identified first header, to reconstruct signal values corresponding to at least a portion of the first data packet and to subtract the reconstructed signal values from the received signals so as to produce a modified signal, and which is further adapted to process the modified signal in order to identify the second header, and to demodulate the first and second data packets using the identified first and second headers. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification