Wireless communication apparatus and method, and program
The present technology relates to a wireless communication apparatus and method, and a program which enable communication to be performed more efficiently. The wireless communication apparatus includes a preamble generating unit configured to generate a preamble signal including header information, an inter-training generating unit configured to generate an inter-training signal including at least part of information of the header information, and a wireless transmission processing unit configured to transmit transmission data after transmitting the preamble signal in at least one or more frequency channels among a plurality of the frequency channels and transmit a plurality of the inter-training signals by utilizing one or a plurality of the frequency channels among the plurality of the frequency channels during a transmission period of the transmission data. The present technology can be applied to a wireless communication apparatus.
1. A wireless communication apparatus comprising:
a preamble generating circuit configured to generate a preamble signal including header information;
an inter-training generating circuit configured to generate an inter-training signal including at least part of information of the header information; and
a wireless transmission processing circuit configured to transmit transmission data after transmitting the preamble signal in at least one or more frequency channels among a plurality of the frequency channels and transmit a plurality of the inter-training signals by utilizing one or a plurality of the frequency channels among the plurality of the frequency channels during a transmission period of the transmission data,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.
2. The wireless communication apparatus according to claim 1 ,
wherein the inter-training signal includes a training sequence included in the preamble signal.
3. The wireless communication apparatus according to claim 1 ,
wherein the inter-training signal further includes information regarding the transmission period of the transmission data.
4. The wireless communication apparatus according to claim 1 ,
wherein the inter-training signal further includes at least one of receiving sensitivity information, or information regarding a wireless communication apparatus of a recipient of a signal.
5. The wireless communication apparatus according to claim 1 ,
wherein the wireless transmission processing circuit repeatedly transmits the inter-training signal by utilizing one of the frequency channels.
6. The wireless communication apparatus according to claim 1 ,
wherein the wireless transmission processing circuit switches the frequency channel to be utilized for transmission of the inter-training signal over time.
7. The wireless communication apparatus according to claim 1 ,
wherein the wireless transmission processing circuit transmits the inter-training signal before transmission of the transmission data or after transmission of the transmission data in one of the frequency channels.
8. The wireless communication apparatus according to claim 1 ,
wherein the wireless transmission processing circuit intermittently transmits the next inter-training signal after a predetermined period has elapsed since the inter-training signal had been transmitted.
9. The wireless communication apparatus according to claim 1 ,
wherein the wireless transmission processing circuit transmits the inter-training signal in one of the frequency channels in a case where the transmission data is transmitted using a plurality of the frequency channels.
10. A wireless communication method to be performed by a wireless communication apparatus, comprising:
generating a preamble signal including header information;
generating an inter-training signal including at least part of information of the header information; and
transmitting transmission data after transmitting the preamble signal in at least one or more frequency channels among a plurality of the frequency channels and transmitting a plurality of the inter-training signals by utilizing one or a plurality of the frequency channels among the plurality of the frequency channels during a transmission period of the transmission data,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.
11. A non-transitory computer readable product containing a program for causing a computer to execute a method, the method:
generating a preamble signal including header information;
generating an inter-training signal including at least part of information of the header information; and
transmitting transmission data after transmitting the preamble signal in at least one or more frequency channels among a plurality of the frequency channels, and transmitting a plurality of the inter-training signals by utilizing one or a plurality of the frequency channels among the plurality of the frequency channels during a transmission period of the transmission data,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.
12. A wireless communication apparatus comprising:
an inter-training detecting circuit configured to detect an inter-training signal including at least part of information of header information included in a preamble signal from a received signal in one or a plurality of frequency channels among a plurality of the frequency channels; and
a wireless communication control circuit configured to specify usage situations of the plurality of frequency channels on a basis of the detected inter-training signal,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.
13. The wireless communication apparatus according to claim 12 ,
wherein the inter-training signal further includes information regarding a transmission period of a signal.
14. The wireless communication apparatus according to claim 13 ,
wherein the wireless communication control circuit specifies the frequency channels which are available to the wireless communication apparatus on a basis of info′ cation described in the inter-training signal and controls transmission of a signal utilizing the specified frequency channels.
15. The wireless communication apparatus according to claim 13 ,
wherein the wireless communication control circuit determines whether transmission right of a signal of the wireless communication apparatus is acquired, on a basis of information described in the inter-training signal.
16. The wireless communication apparatus according to claim 13 ,
wherein the wireless communication control circuit sets a period during which transmission of a signal of the wireless communication apparatus is inhibited on a basis of information described in the inter-training signal.
17. The wireless communication apparatus according to claim 12 ,
wherein the inter-training signal further includes at least one of receiving sensitivity information, or information regarding a wireless communication apparatus of a recipient of a signal.
18. The wireless communication apparatus according to claim 12 , further comprising:
a transmission power control circuit configured to control transmission power of a signal of the wireless communication apparatus on a basis of information described in the inter-training signal.
19. A wireless communication method to be performed by a wireless communication apparatus, comprising:
detecting an inter-training signal including at least part of information of header information included in a preamble signal from a received signal in one or a plurality of frequency channels among a plurality of the frequency channels; and
specifying usage situations of the plurality of the frequency channels on a basis of the detected inter-training signal,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.
20. A non-transitory computer readable product containing a program for causing a computer to execute a method, the method comprising:
detecting an inter-training signal including at least part of information of header information included in a preamble signal from a received signal in one or a plurality of frequency channels among a plurality of the frequency channels; and
specifying usage situations of the plurality of the frequency channels on a basis of the detected inter-training signal,
wherein the inter-training signal includes at least one of:
information regarding the frequency channels to be utilized for transmission of the transmission data,
information for identifying a wireless network to which the wireless communication apparatus belongs,
coding and modulation scheme information of a signal to be transmitted by the wireless transmission processing unit,
transmission power information, or
information regarding a spatial reuse technology.