Patent ID: 8204095
Filing Date: 2012-06-19
Classification: H04B

Abstract:
1. A method of determining a delay and phase of a received ultra-wide band signal in an impulse ultra-wideband communication system, the method comprising the steps of: (a) receiving an ultra-wideband (UWB) signal from a transmitting device; (b) comparing a signal template to at least one frame in a preamble of the received UWB signal, the signal template including a series of continuous pulses wherein each pulse is equivalent to an amplitude and duration of a pulse in the preamble of the USB signal, wherein the preamble is sampled at various time positions using the signal template until a pulse in the signal template matches a pulse in the preamble; (c) identifying a chip boundary within a chip position at which the pulse is detected; (d) providing a plurality of phases having a time-hopping sequence of the UWB signal, wherein each of the pulses in the plurality of phases are positioned within respective chip positions at the chip boundary as determined in step (c); (e) identifying a chip position of a first pulse in the received signal; (f) identifying the phases that have a pulse at the chip position identified in step (e); and (g) comparing the phases identified in step (f) with the UWB signal, wherein the comparison between each phase and the UWB signal is initiated at a next chip position following the chip position identified in step (e), wherein a chip position for each pulse of each phase is recorded and compared to the pulse chip positions of the UWB signal, wherein the phase having a maximum number of pulse chip positions that directly correlate to the pulse chip positions of the UWB signal is selected for synchronization to process the remainder of the UWB signal.