Patent ID: 7773659

Claim:
An Ultra WideBand M-ary Code Shift Keying/Binary Pulse Position Modulation wireless communication system, comprising: a transmitter including: M-ary Code Shift Keying means for selecting a user-specific M time-hopping code according to an additional data stream, and time-hopping Binary Pulse Position Modulation means for performing pulse position modulation on primary input information using the user-specific M time-hopping code selected by the M-ary Code Shift Keying means, wherein the Binary Pulse Position Modulation means comprises a plurality of time-hopping Binary Pulse Position Modulation modules that each corresponds to 1-bit input information, wherein the transmitter transmits a modulated signal via a channel; and a receiver for receiving the signal transmitted from the transmitter via the channel, including: decision variable means, which are composed of combinations of user-specific M time hopping code and binary position information and used for forming decision variables by computing a correlation between the received transmitted signal and a template signal for M different user-specific M time-hopping codes and both values of binary data for each bit in a symbol and the decision variables are used to estimate the signal transmitted via the channel, and detection means for detecting an estimate of decision variables from an output of the decision variable formation means.