Multi-carrier transmitter for ultra-wideband (UWB) systems
First Claim
1. A method for providing ultra-wideband wireless communications comprising:
- arranging a data stream into a plurality of sub-frequency ranges, wherein the sub-frequency ranges are portions of a total available transmission bandwidth;
transforming the arranged data into a time domain signal;
converting the time domain signal into an analog signal; and
transmitting the analog signal.
1 Assignment
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Accused Products
Abstract
System and method for a multi-carrier ultra-wideband (UWB) transmitter. A preferred embodiment comprises an UWB transmitter (for example, transmitter 300) taking advantage of both code division multiple access (CDMA) (for example, block 305) and orthogonal frequency division multiplexing (OFDM) (for example, block 315) techniques to create a multi-carrier UWB transmitter. The multi-carrier UWB is capable of avoiding interferers by eliminating signal transmissions in the frequency bands occupied by the interferers. An alternate embodiment using intermediate frequencies and mixers is also presented.
112 Citations
42 Claims
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1. A method for providing ultra-wideband wireless communications comprising:
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arranging a data stream into a plurality of sub-frequency ranges, wherein the sub-frequency ranges are portions of a total available transmission bandwidth;
transforming the arranged data into a time domain signal;
converting the time domain signal into an analog signal; and
transmitting the analog signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An ultra-wideband transmitter comprising:
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a data input;
a data partitioner coupled to the data input, the data partitioner containing circuitry to partition a data stream provided by the data input into a plurality of units and to place the units into individual sub-frequency ranges;
a digital-to-analog converter (DAC) coupled to the data partitioner, the DAC containing circuitry to convert a digital data stream into an analog signal stream; and
an antenna coupled to the DAC, the antenna used to transmit the analog signal stream. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for avoiding interferers comprising:
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scanning a transmit band for interferers;
determining the presence of interferers;
zeroing out data in a signal in a frequency band containing the interferers; and
transmitting the signal. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42)
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Specification