Transmitting apparatus, control system, and transmitting method
View Patent ↗A transmitting apparatus includes: a frame configuration unit that configures a frame conforming to orthogonal frequency-division multiple access (OFDMA) and including a plurality of time-frequency resources, each being a resource defined by time and frequency; and a transmitter that transmits the frame configured by the frame configuration unit over radio waves. The frame configuration unit configures, as the frame, a frame including a resource for communication and a resource for sensing, the resource for communication being a time-frequency resource in which a symbol including communication data is disposed, and the resource for sensing being a time-frequency resource in which a symbol for sensing via radio waves transmitted by the transmitter is disposed.
1. A transmitting apparatus, comprising:
a processor configured to configure an orthogonal frequency-division multiple access (OFDMA) frame including resources, each of the resources being defined by time and frequency; and
a transmitter configured to transmit the OFDMA frame over radio waves,
wherein the OFDMA frame includes a resource for communication and resources for sensing, the resource for communication being a time-frequency resource in which a symbol including communication data is transmitted, and each of the resources for sensing being a time-frequency resource in which a symbol for sensing via radio waves is transmitted,
wherein the resources for sensing include a first resource and a second resource, the first resource and the second resource being allocated at different times and having a same frequency, the first resource and the second resource being separated in time axis by a guard interval, and
wherein the resource for communication is at least allocated at a same time and having a different frequency than at least one of the first resource or the second resource.
2. The transmitting apparatus according to claim 1 ,
wherein the OFDMA frame includes two guard intervals of different lengths of time and different frequencies.
3. The transmitting apparatus according to claim 1 ,
wherein the OFDMA frame includes at least two resources for sensing each of which is the resource for sensing, the at least two resources for sensing being of different frequencies and different lengths of time.
4. The transmitting apparatus according to claim 1 , further comprising:
a receiver configured to receive a reflected wave of the radio waves, transmitted by the transmitter,
wherein the processor is further configured to execute sensing processing by analyzing the reflected wave received by the receiver.
5. The transmitting apparatus according to claim 4 ,
wherein the sensing processing includes at least one of processing of detecting a position of an object, processing of detecting presence or absence of an object, or processing of detecting a shape of an object, by analyzing the reflected wave received by the receiver.
6. The transmitting apparatus according to claim 4 , further comprising:
a controller configured to control driving of an electronic device based on a result of the sensing processing by the processor.
7. A control system, comprising:
the transmitting apparatus according to claim 6 ; and
the electronic device driven under control by the controller included in the transmitting apparatus.
8. A transmitting method, comprising:
configuring an orthogonal frequency-division multiple access (OFDMA) frame including resources, each of the resources being defined by time and frequency; and
transmitting the OFDMA frame over radio waves,
wherein the OFDMA frame includes a resource for communication and resources for sensing, the resource for communication being a time-frequency resource in which a symbol including communication data is transmitted, and each of the resources for sensing being a time-frequency resource in which a symbol for sensing via radio waves is transmitted,
wherein the resources for sensing include a first resource and a second resource, the first resource and the second resource being allocated at different times and having a same frequency, the first resource and the second resource being separated in time axis by a guard interval, and
wherein the resource for communication is at least allocated at a same time and having a different frequency than at least one of the first resource or the second resource.
9. The transmitting apparatus according to claim 1 , wherein
the resource for communication is allocated at a same time and having a different frequency than the first resource, the guard interval, and the second resource.