Invention Grant
- Patent Title: Method to generate a wireless waveform for use in a wireless communication system, a wireless communication system and computer program products thereof
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Application No.: US15632875Application Date: 2017-06-26
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Publication No.: US09967126B2Publication Date: 2018-05-08
- Inventor: Javier Lorca Hernando
- Applicant: Telefonica, S.A.
- Applicant Address: ES Madrid
- Assignee: Telefonica, S.A.
- Current Assignee: Telefonica, S.A.
- Current Assignee Address: ES Madrid
- Agency: Sughrue Mion, PLLC
- Priority: EP16382303 20160627
- Main IPC: H04B7/01
- IPC: H04B7/01 ; H04L27/26 ; H04L25/02 ; H04L27/233 ; H04B17/309

Abstract:
A method to generate a wireless waveform for use in a wireless communication system, a wireless communication system and computer program product thereofThe method comprises the generation of a waveform for application in the wireless communication system characterized by significant phase noise, Doppler spread, multipath, frequency instability, and/or low power efficiency by at the transmitter side: creating a discrete-time instantaneous frequency signal {tilde over (f)}[n]; appending a cyclic prefix with length LCP to the beginning of the discrete-time instantaneous frequency signal {tilde over (f)}[n]; constructing a discrete-time unwrapped instantaneous phase φ[n]; constructing a discrete-time complex baseband signal, and appending at the beginning a Constant Amplitude Zero Autocorrelation, CAZAC, signal of length LCP for multipath detection; and passing the constructed discrete-time complex baseband signal through a digital-to-analog, DAC, converter to yield the continuous-time radio frequency signal s(t) after conversion to the carrier frequency.
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