Communications systems and methods
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Abstract
This invention generally relates to wired and wireless ultra wideband (UWB) data communications apparatus and methods, and in particular to UWB receiver systems and architectures, and to UWB transmission systems and signals. A UWB receiver system for receiving a UWB signal comprising a plurality of pulses, the system comprising: a receiver front end to receive a UWB signal; a reference UWB signal store for storing a reference UWB signal; and a correlator configured to correlate said received UWB signal with a plurality of differently delayed versions of said stored reference signal to co-determine a timing and a phase of a received UWB signal pulse; whereby a UWB signal carrying data encoded by both pulse position and pulse phase is decodeable.
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Citations
23 Claims
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1-11. -11. (cancelled)
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12. A UWB receiver system for receiving a UWB signal comprising a plurality of pulses, the system comprising:
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a receiver front end to receive a UWB signal;
a reference UWB signal store for storing a reference UWB signal; and
a correlator configured to correlate said received UWB signal with a plurality of differently delayed versions of said stored reference signal to co-determine a timing and a phase of a received UWB signal pulse;
whereby a UWB signal carrying data encoded by both pulse position and pulse phase is decodeable. - View Dependent Claims (13, 14, 15, 16, 17, 19)
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18. A UWB transmitter system for transmitting a UWB signal comprising a plurality of pulses, the transmitter system comprising:
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an encoder having an input to receive information data as encoded data for transmission, to encode said information data for transmission using a combination of pulse position in time and pulse phase;
means to superimpose a deterministic pulse position variation on said encoded data; and
a UWB transmitter coupled to said encoder to transmit said encoded data as UWB pulses.
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20. A method of communicating data in a UWB communications system by means of a UWB signal comprising a plurality of pulses, the method comprising:
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encoding said data in said UWB signal by modulating in combination both pulse position in time and pulse phase;
communicating said encoded data with said UWB communications system by means of said UWB signal; and
decoding said encoded data by demodulating pulse positions in time and pulse phases in said communicated UWB signal by jointly determining said pulse positions in time and said pulse phases. - View Dependent Claims (21)
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- 22. A UWB signal for communicating data in a UWB communications system, said UWB signal comprising a plurality of pulses, wherein said communicated data is encoded by means of a combination of both positions in time of said pulses and phases of said pulses, and wherein said pulses further have a superimposed deterministic pulse position variation.
Specification