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US 2006/0133451 A1Published application
Use of pseudo-random frequency sequence to reduce pico-net interference in a multi-band uwb network
OwnerDagnachew Birru, Jeff Bennettinventors
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Abstract
A wireless communication system and method is provided that uses a pseudo-random frequency sequence to reduce pico-net interference in a multi-band ultra wideband network. Pulse are transmitted using a pseudo-random sequence of frequencies such that neighboring pico-nets using the same technique can reduce band overlap thereby reducing mutual interference.
Claims16
An apparatus for a multi-band ultra-wideband (UWB) communication system, comprising:
- a transmitter subsystem comprising:
- (a) a controller configured to divide a UWB channel into a pseudo-random sequence of N sub-bands,
- (b) a modulator configured to provide a sequence of modulated pulses, and
- (c) a transmitter configured to transmit each modulated pulse in said sequence through one of said sequence of N sub-bands, and
- a receiver subsystem comprising-
- (d) a receiver configured to receive UWB signals transmitted through said N sub-bands
- (e) a controller configured to combine into a sequence of modulated pulses the signals received according to the pseudo-random sequence of said N sub-bands,and
- (f) a demodulator configured to demodulate the sequence of modulated pulses.
5 more elements
A method for communicating data using ultra-wideband techniques, said method comprising:
- (a) providing a transmitter subsystem configured to perform the steps of-
- (a.1) dividing a UWB channel into a pseudo-random sequence of N sub-bands,
- (a.2) modulating a signal as a sequence of pulses, and
- (a.3) transmitting each modulated pulse in said sequence through one of said sequence of N sub-bands;
- and
- (b) providing a receiver subsystem configured to perform the steps of:
- (b.1) receiving a UWB signal transmitted through said N sub-bands,
- (b.2) combining the received N sub-bands according to the pseudo-random sequence, and
- (b.3) demodulating the series of UWB pulses from the combined N sub-bands.
6 more elements
Dependencies are inferred from the claim text.