Use of identifier of remote unit for downstream signals
First Claim
1. A method for a remote unit of an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
- receiving an address code assignment at a first remote unit of a plurality of remote units from a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration;
communicating with the host unit using the address code, wherein the address code is unique among the plurality of remote units; and
transmitting up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with upstream information using orthogonal frequency division multiplexing, wherein the up to a plurality of tones are configured to combine with tones from other remote units of the plurality of remote units to a unified orthogonal frequency division multiplexing waveform at the host unit.
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Accused Products
Abstract
Systems and methods for orthogonal frequency division multiplexing multipoint-to-point communications systems are provided. In one embodiment, a method 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; receiving an address code assignment from the host unit, the address code to be used in communicating with the host unit, wherein the address code is unique among the plurality of remote units; and transmitting up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with upstream information using orthogonal frequency division multiplexing.
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Citations
16 Claims
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1. A method for a remote unit of an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising:
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receiving an address code assignment at a first remote unit of a plurality of remote units from a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; communicating with the host unit using the address code, wherein the address code is unique among the plurality of remote units; and transmitting up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with upstream information using orthogonal frequency division multiplexing, wherein the up to a plurality of tones are configured to combine with tones from other remote units of the plurality of remote units to a unified orthogonal frequency division multiplexing waveform at the host unit. - 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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transmitting up to a plurality of tones between a first remote unit of a plurality of remote units and a host unit to establish communication, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; assigning an address code to the first remote unit, the address code determined by the host unit; transmitting a downstream control signal from the host unit to the first remote unit, the downstream control signal including the address code; and receiving a unified orthogonal frequency division multiplexing waveform at the host unit, the unified orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by at least two remote units of the plurality of remote units, wherein the plurality of tones from the at least two remote units combine to the unified orthogonal frequency division multiplexing waveform at the host unit. - View Dependent Claims (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 a unified orthogonal frequency division multiplexing waveform; wherein the multipoint-to-point host unit is configured to receive the unified orthogonal frequency division multiplexing waveform, the unified orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by at least two remote units of the plurality of remote units, wherein the plurality of tones from the at least two remote units combine to the unified orthogonal frequency division multiplexing waveform at the host unit; wherein the plurality of remote units are each assigned an address code by the host unit for communicating with the host unit, wherein each address code is unique among the plurality of remote units. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification