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US 2006/0052094 A1Published application
Software-defined radio apparatus
AssigneeHitachi, Ltd.
InventorsManabu Kawabe, Katsuhiko Tsunehara, Hirotake Ishii, Takashi Ishikawa
Life of this patent
Estimating the term…
Abstract
To simplify the configuration of functional modules in a software-defined radio apparatus, and facilitate the development of software. The functional modules have input and output terminals of a common configuration. Distributed timing control is performed so that the functional modules operate in their respective timings, and the functional modules have common input/output signals.
Claims16
A radio apparatus, comprising:
- an antenna that transmits and receives a radio signal;
- a modulating/demodulating module, connected to the antenna, which modulates a transmission signal to a radio-frequency signal, and demodulates a reception signal from a radio-frequency signal;
- a signal processing module, connected to the modulating/demodulating module, which performs signal processing for a transmission/reception signal;
- and
- a CPU, connected to the signal processing module, which performs protocol processing for a transmission/reception signal,
- wherein the signal processing module includes plural functional blocks, which perform signal processing for transmission signal data or reception signal data, and whose function is defined by an installed program, and
- wherein each of the functional blocks sends, to the functional block of the prior stage, busy state information indicating whether the functional block is in preparation to receive next transmission signal data or next reception signal data as a backward control signal, and outputs, to the functional block of the next stage, transmission signal data or reception signal data having been processed in the functional block when receiving busy state information indicating in preparation to receive next transmission signal data or reception signal data from a functional block of a subsequent stage.
4 more elements
A radio communication signal processing method in a radio apparatus comprising:
- an antenna that transmits and receives a radio signal;
- a modulating/demodulating module, connected to the antenna, which modulates a transmission signal to a radio-frequency signal, and demodulates a reception signal from a radio-frequency signal;
- a signal processing module, connected to the modulating/demodulating module, which performs signal processing for a transmission/reception signal;
- a CPU, connected to the signal processing module, which performs protocol processing for a transmission/reception signal;
- plural functional blocks, included in the signal processing module, that perform signal processing for transmission signal data or reception signal data, function of the functional blocks being defined by an installed program, the method comprising:
- a first step of sending, to the functional block of the prior stage, busy state information indicating whether the functional block is in preparation to receive next transmission signal data or next reception signal data as a backward control signal, and
- a second step of outputting, to the functional block of the next stage, transmission signal data or reception signal data having been subjected to signal processing in the functional block when receiving busy state information indicating in preparation to receive next transmission signal data or reception signal data from a functional block of a subsequent stage.
4 more elements
Dependencies are inferred from the claim text.