Communication device and communication method
[Object] To provide a mechanism capable of securing transmission opportunities of a wireless LAN communication device in a situation in which a signal of a format different from a signal of wireless LAN communication is transmitted. [Solution] Provided is a communication device, including: a signal processing unit configured to perform reception determination for a second signal having a different format from a first signal related to communication of a wireless local area network (LAN) standard; a control unit configured to control carrier sense or a communication parameter on a basis of the reception determination for the second signal; and a communication unit configured to perform transmission on a basis of the controlled carrier sense or the controlled communication parameter.
1. A communication device, comprising:
circuitry configured to
perform reception determination for a second signal having a different format from a first signal related to communication of a wireless local area network (LAN) standard, and
control carrier sense or a communication parameter on a basis of the reception determination for the second signal; and
a transmitter configured to perform transmission on a basis of the controlled carrier sense or the controlled communication parameter, wherein
the control of the carrier sense includes control of a carrier sense time that includes a standby time from a time point at which a signal ceases to be received, and
the circuitry sets the standby time to a time obtained by consuming the standby time during reception of the second signal when the reception of the second signal is completed.
2. The communication device according to claim 1 ,
wherein the reception determination for the second signal is performed on a basis of a result of determining whether or not a reception signal is the first signal.
3. The communication device according to claim 2 ,
wherein the determination on whether or not the reception signal is the first signal is performed on a basis of a signal pattern of the reception signal.
4. The communication device according to claim 3 ,
wherein the signal pattern of the reception signal includes a signal pattern in a preamble of the reception signal.
5. The communication device according to claim 3 ,
wherein the signal pattern of the reception signal includes periodicity of the reception signal.
6. The communication device according to claim 2 ,
wherein the reception determination for the second signal is performed further on a basis of a reception signal strength.
7. The communication device according to claim 2 ,
wherein the determination on whether or not the reception signal is the first signal includes determination on whether or not reception is performed at a time or a frequency according to a communication protocol of the wireless LAN standard.
8. The communication device according to claim 1 ,
wherein the reception determination for the second signal is performed on a basis of whether or not the second signal is received.
9. The communication device according to claim 8 ,
wherein it is determined whether or not the second signal is received on a basis of periodicity for a reception signal.
10. The communication device according to claim 9 ,
wherein the periodicity for the reception signal includes periodicity for a time or a frequency.
11. The communication device according to claim 1 ,
wherein the reception determination for the second signal includes reception of a signal related to a result of the reception determination for the second signal or control of the carrier sense or the communication parameter.
12. The communication device according to claim 1 ,
wherein the circuitry sets the standby time to a time shorter than before the consumption, in a case in which the standby time to be set when the reception of the second signal is completed is a time obtained by completely consuming the standby time during the reception of the second signal.
13. The communication device according to claim 1 ,
wherein the control of the carrier sense includes selection of a threshold value for a reception signal strength used for the reception determination for the second signal.
14. The communication device according to claim 13 ,
wherein the circuitry selects a threshold value for the reception signal strength on a basis of a result of the reception determination for the second signal.
15. The communication device according to claim 1 ,
wherein the communication parameter includes a parameter for deciding a signal detection sensitivity in the carrier sense.
16. The communication device according to claim 1 ,
wherein the communication parameter includes a parameter for deciding a transmission time.
17. The communication device according to claim 1 ,
wherein the communication parameter includes a parameter for deciding transmission power.
18. A communication method, comprising:
performing, with a signal processor, reception determination for a second signal having a different format from a first signal related to communication of a wireless local area network (LAN) standard;
controlling, with circuitry, carrier sense or a communication parameter on a basis of the reception determination for the second signal; and
performing, with a transmitter, transmission on a basis of the controlled carrier sense or the controlled communication parameter, wherein
the control of the carrier sense includes control of a carrier sense time that includes a standby time from a time point at which a signal ceases to be received, and
the circuitry sets the standby time to a time obtained by consuming the standby time during reception of the second signal when the reception of the second signal is completed.