US 9,942,011 B2Granted

Wireless communication apparatus and the method thereof

AssigneeIndustrial Technology Research Institute

InventorsMing-Fu Tang, Bor-Ching Su

Life of this patent

Estimating the term…

Loading patent…

Abstract

In one exemplary embodiment, a wireless communication apparatus transmitting data by using several sub-carriers. The wireless communication apparatus comprises a signal modulator, a signal processor, a storage, a computing processor, and a transmitter. The signal modulator generates a modulated signal in time domain based on the data. The signal processor performs signal processing on the modulated signal, and comprises a window module and a filter module. The window module performs windowing operation on the modulated signal to generate a window-operated signal. The filter module performs filtering operation on the window-operated signal to generate a transmitting signal in time domain. The computing processor performs operations of setting up the window module and the filter module according to a window characteristic function and a filter characteristic function. The transmitter transmits the transmitting signal.

Claims16

Dependent claims

A wireless communication apparatus, transmitting at least one data by using a plurality of sub-carriers, the wireless communication apparatus comprising:

a signal modulator, configured to generate at least one modulated signal in time domain based on the at least one data;
a signal processor, coupled to the signal modulator, and configured to perform signal processing on the at least one modulated signal, wherein the signal processor comprises a window module and a filter module, wherein the window module performs windowing operation on the at least one modulated signal to generate a window-operated signal, and the filter module performs filtering operation on the window-operated signal to generate a transmitting signal in time domain;
a storage, storing a plurality of program codes;
a computing processor, coupled to the signal processor and the storage, and configured to access the program codes to perform operations of setting up the window module and the filter module respectively according to a window characteristic function and a filter characteristic function, and perform operations of performing an iterative out-of-band power leakage suppressing algorithm, wherein the iterative out-of-band power leakage suppressing algorithm is to estimate the window characteristic function and the filter characteristic function based on an out-of-band power spectral density function;
and
a transmitter, coupled to the signal processor and configured to transmit the transmitting signal.

3 more elements

A wireless communication apparatus, transmitting a plurality of data by using a plurality of sub-carriers, the wireless communication apparatus comprising:

a signal modulator, configured to generate a plurality of modulated signals in time domain based on the data;
a plurality of signal processors, coupled to the signal modulator, and configured to perform signal processing on the modulated signals, wherein each signal processor comprises:
a window module, configured to perform windowing operation on one of the modulated signals to generate a window-operated signal, and
a filter module, configured to perform filtering operation on the window-operated signal to generate a transmitting signal in time domain;
a storage, configured to store a plurality of program codes;
a computing processor, coupled to the signal processors and the storage, and configured to access the program codes to perform operations of setting up the window modules and the filter modules of the signal processors respectively according to a plurality of window characteristic functions and a plurality of filter characteristic functions;
and
at least one transmitter, coupled to the signal processors and configured to transmit the transmitting signals generated by the signal processors.

5 more elements

A method of generating wireless signals, applied to a wireless communication apparatus transmitting at least one data by using a plurality of sub-carriers, the method comprising:

setting up a signal processor of the wireless communication apparatus according to a window characteristic function and a filter characteristic function;
generating at least one modulated signal in time domain based on the at least one data;
performing windowing operation on the at least one modulated signal to generate at least one window-operated signal, and performing filtering operation on the at least one window-operated signal to generate at least one transmitting signal in time domain, further comprising:
performing, based on an out-of-band power spectral density function, an iterative out-of-band power leakage suppressing algorithm to estimate the window characteristic function and the filter characteristic function;
and
transmitting the at least one transmitting signal.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/592,205Filed 11 May 2017 · us provisional application
Priority: TW 105140637 A8 Dec 2016
Published: US 2017/0331599 A116 Nov 2017
Granted: 10 Apr 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 27/2626
Multicarrier modulation systems: arrangements specific to the transmitter only
H04B 1/0475
Circuits: with means for limiting noise, interference or distortion
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers
H04L 25/03834
Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties: using pulse shaping