Method and system for dynamic bandwidth allocation
First Claim
1. A method for a remote unit of an orthogonal frequency division multiplexing (OFDM) 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, wherein each of the plurality of remote units simultaneously share an OFDM waveform having adjacent spectrally overlapping carriers by transmitting information on distinct tones of the OFDM waveform, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration;
requesting an allocation of bandwidth from the host unit;
receiving an allocation of up to a plurality of orthogonal tones from the host unit based on a characteristic of upstream information to be transmitted by the first remote unit; and
transmitting the up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with the upstream information using orthogonal frequency division multiplexing.
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Accused Products
Abstract
Systems and methods for bidirectional communication are provided. In one embodiment, a bidirectional communication comprises a multipoint-to-point host unit and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an orthogonal frequency division multiplexing waveform. The multipoint-to-point host unit is configured to receive the orthogonal frequency division multiplexing waveform, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by the plurality of remote units. The multipoint-to-point host unit is configured to allocate up to a plurality of the plurality of tones to a first remote unit of the plurality of remote units based on a characteristic of upstream information transmitted by the first remote unit.
192 Citations
16 Claims
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1. A method for a remote unit of an orthogonal frequency division multiplexing (OFDM) 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, wherein each of the plurality of remote units simultaneously share an OFDM waveform having adjacent spectrally overlapping carriers by transmitting information on distinct tones of the OFDM waveform, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; requesting an allocation of bandwidth from the host unit; receiving an allocation of up to a plurality of orthogonal tones from the host unit based on a characteristic of upstream information to be transmitted by the first remote unit; and transmitting the up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with the upstream information using orthogonal frequency division multiplexing. - View Dependent Claims (2, 3, 4)
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5. A method for an orthogonal frequency division multiplexing (OFDM) 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, wherein each of the plurality of remote units simultaneously share an OFDM waveform by transmitting information on adjacent spectrally overlapping carriers of the OFDM waveform, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; receiving an orthogonal frequency division multiplexing waveform at the host unit, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by the plurality of remote units; and allocating up to a plurality of the plurality of tones to the first remote unit based on a characteristic of upstream information to be transmitted by the first remote unit. - View Dependent Claims (6, 7, 8, 9)
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10. A bi-directional communication system, the system comprising:
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a multipoint-to-point host unit; and a plurality of remote units communicatively coupled to the multipoint-to-point host unit through an orthogonal frequency division multiplexing (OFDM) waveform having adjacent spectrally overlapping carriers, wherein each of the plurality of remote units simultaneously share the OFDM waveform by transmitting information on distinct tones of the OFDM waveform; wherein the multipoint-to-point host unit is configured to receive the OFDM waveform, the OFDM waveform comprising a plurality of tones transmitted by the plurality of remote units; wherein the multipoint-to-point host unit is configured to allocate up to a plurality of the plurality of tones to a first remote unit of the plurality of remote units based on a characteristic of upstream information transmitted by the first remote unit. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification