Spectrum characterization for communication equipment
View Patent ↗The invention concerns the processing of digital signals, in particular spectral scanning upon reception of a signal. Said processing includes multicarrier shape filtering ( 12 ) applied to a received signal prior to computing a Fourier transform ( 13 ) applied to the received signal thus filtered. The invention is advantageously useful for dynamic spectrum allocation in a context of radio communication of content.
1. A series of modules for spectral scanning of a received digital signal, comprising a multicarrier shaping filter bank, upstream from a Fourier transform computation module;
the series of modules further comprising, downstream from the Fourier transform computation module:
a module for analysis and identification of a pre-specified signal, based on predefined characterization rules, and
a decision module, downstream from the analysis and identification module, indicating at least one operating frequency band of a piece of communicating equipment, in reception and/or in transmission.
2. A communicating equipment comprising, a series of modules for spectral scanning of a received digital signal, the series of modules including a multicarrier shaping filter bank, upstream from a Fourier transform computation module;
the communication equipment further comprising a series of modules for reception, with demodulation, and/or a series of modules for transmission, with modulation, and comprising, downstream from the Fourier transform computation module, an analysis and identification module and a decision module indicating at least one operating frequency band in demodulation and/or in modulation.
3. The communicating equipment as claimed in claim 2 , further comprising, upstream from the filter bank, a module bringing the received signal into baseband and for demodulating the received signal and operating spectral scanning of said received signal.
4. The communicating equipment as claimed in claim 2 , wherein the communicating equipment operates as a base station of a communication system.
5. The communicating equipment as claimed in claim 2 , wherein the communicating equipment operates as a terminal of a communication system.
6. A communication system, in a cognitive and frequency-agile communication context, comprising communicating equipment as claimed in claim 2 , wherein the communicating equipment operates as one of:
a base station;
a terminal; or
a based station and terminal.