Communication device, communication control method, and program
[Object] To enable the communication device that has received a response frame to determine whether or not the response frame is a signal of the own BSS, while ensuring downward compatibility. [Solution] Provided is a communication device including: a generation unit configured to generate a response frame prescribed in IEEE802.11 by setting a value corresponding to a BSS to which the own device belongs in a receiving station address field of the response frame; and a transmission unit configured to transmit the response frame.
1. A communication device comprising:
a receiver configured to receive, from a transmitting device, a response frame that is prescribed in IEEE802.11, the response frame having an address field of a receiving station that comprises a first part and a second part,
wherein the first part includes a portion of a receiving station media access control (MAC) address,
wherein the second part contains either a remainder of the receiving station MAC address or replacement values that replace the remainder of the receiving station MAC address, and
wherein the replacement values comprise:
a first value corresponding to a basic service set (BSS); and
a second value used to distinguish the receiving station from another receiving station having a portion of a corresponding MAC address that is identical to the portion of the receiving station MAC address; and
a processor configured to:
set an Intra-BSS network allocation vector (NAV) when the first part and the second part equal a MAC address of an access point of the communication device; and
process the response frame as a clear to send (CTS) frame or an acknowledgement (ACK) frame in accordance with the BSS when the first part and the second part do not equal the MAC address of the access point of the communication device and when the first part and the second part uniquely identify the communication device.
2. The communication device according to claim 1 , wherein the second part further includes IEEE802.11 version information.
3. The communication device according to claim 1 , wherein the response frame is a clear to send (CTS) frame or an acknowledgement (ACK) frame received in response to a request to send (RTS) frame transmitted by the communication device.
4. The communication device according to claim 1 ,
wherein the processor is further configured to:
set a first transmission suppression period when the first part and the second part do not equal the MAC address of the access point of the communication device and when the first part and the second value uniquely identify the communication device, and
set a second transmission suppression period in a case when the first part and the second part do not equal the MAC address of the access point of the communication device and when the first part and the second part do not uniquely identify the communication device.
5. A communication control method executed by a communication device, the method comprising:
receiving, from a transmitting device, a response frame that is prescribed in IEEE802.11, the response frame having an address field of a receiving station that comprises a first part and a second part,
wherein the first part includes a portion of a receiving station media access control (MAC) address,
wherein the second part contains either a remainder of the receiving station MAC address or replacement values that replace the remainder of the receiving station MAC address, and
wherein the replacement values comprise:
a first value corresponding to a basic service set (BSS); and
a second value used to distinguish the receiving station from another receiving station having a portion of a corresponding MAC address that is identical to the portion of the receiving station MAC address;
setting an Intra-BSS network allocation vector (NAV) when the first part and the second part equal a MAC address of an access point of the communication device; and
processing the response frame as a clear to send (CTS) frame or an acknowledgement (ACK) frame in accordance with the BSS when the first part and the second part do not equal the MAC address of the access point of the communication device and when the first part and the second part uniquely identify the communication device.
6. A non-transitory computer readable product containing instructions for causing a computer to implement the method of claim 5 .