METHOD FOR ORDERWIRE MODULATION
First Claim
1. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
- establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration;
transmitting non-control data on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the non-control data using a first modulation scheme; and
transmitting control signals on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the control signals using a second, more robust modulation scheme.
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Accused Products
Abstract
Methods for orderwire modulation are provided. In one embodiment, a method for an orthogonal frequency division multiplexing multipoint-to-point communications system comprises: establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; transmitting non-control data on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the non-control data using a first modulation scheme; and transmitting control signals on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the control signals using a second, more robust modulation scheme.
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Citations
13 Claims
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1. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
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establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration;
transmitting non-control data on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the non-control data using a first modulation scheme; and
transmitting control signals on up to a plurality of tones from the first remote unit using an orthogonal frequency division multiplexing (OFDM) waveform, the up to a plurality of tones modulated with the control signals using a second, more robust modulation scheme. - View Dependent Claims (2, 3, 4, 5)
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6. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
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receiving an orthogonal frequency division multiplexing waveform at a multipoint-to-point host unit, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by a plurality of remote units;
communicating between a first remote unit of the plurality of remote units and the multipoint-to-point host unit, the plurality of remote units communicatively coupled to the multipoint-to-point host unit in a multipoint-to-point configuration;
receiving non-control data in the orthogonal frequency division multiplexing waveform, the non-control data modulated using a first modulation scheme; and
receiving control signals in the orthogonal frequency division multiplexing waveform, the control signals modulated using a second modulation scheme. - View Dependent Claims (7, 8, 9, 10, 12, 13)
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11. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
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receiving an orthogonal frequency division multiplexing waveform at a multipoint-to-point host unit, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by a plurality of remote units; and
modulating one or more of the plurality of tones with non-control data using a first modulation scheme; and
modulating one or more of the plurality of tones with control signals using a second modulation scheme, the second modulation scheme more robust than the first modulation scheme.
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Specification