Transmission device and method as well as reception device and method
AssigneeSony Group Corporation
InventorSawako Kiriyama
Life of this patent
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Abstract
The present technology relates to a transmission device and method as well as a reception device and method which can suppress the influence of interference. The transmission device sets different methods of changing the frequency of the chirp modulation for each of first information and second information different from the first information. The transmission device transmits the chirp-modulated first information or second information in accordance with the set frequency change method. The present technology can be applied to a wireless communication system.
Claims20
A transmission device, comprising:
- a control unit configured to:
- determine whether a frame to be transmitted corresponds to first information or second information;
- set a first frequency change of chirp modulation for a chirp signal of the frame based on the determination that the frame corresponds to the first information;
- and
- set a second frequency change of the chirp modulation for the chirp signal of the frame based on the determination that the frame corresponds to the second information different from the first information, wherein the second frequency change is different from the first frequency change;
- and
- a transmission unit configured to transmit the first information and the second information that have undergone the chirp modulation.
A transmission method, comprising:
- in a transmission device:
- determining whether a frame to be transmitted corresponds to first information or second information;
- setting a first frequency change of chirp modulation for a chirp signal of the frame based on the determination that the frame corresponds to the first information;
- setting a second frequency change of the chirp modulation for the chirp signal of the frame based on the determination that the frame corresponds to the second information different from the first information, wherein the second frequency change is different from the first frequency change;
- and
- transmitting the first information and the second information that have undergone the chirp modulation.
A reception device, comprising:
- a reception unit configured to receive first information and second information that has undergone chirp modulation in accordance with a different frequency change of the chirp modulation set for each of a chirp signal of the first information and a chirp signal of the second information different from the first information;
- and
- a demodulation unit configured to:
- demodulate the first information in accordance with a first frequency change;
- and
- demodulate the second information in accordance with a second frequency change different from the first frequency change.
A reception method, comprising:
- in a reception device:
- receiving first information and second information that has undergone chirp modulation in accordance with a different frequency change of the chirp modulation set for each of a chirp signal of the first information and a chirp signal of the second information different from the first information;
- demodulating the first information in accordance with a first frequency change;
- and
- demodulating the second information in accordance with a second frequency change different from the first frequency change.
Dependencies are inferred from the claim text.