Patent ID: 8406214

Claim:
A semiconductor integrated circuit including a CPU that executes firmware, the semiconductor integrated circuit comprising: a construction unit configured to construct a single first physical frame including a plurality of MAC frames, the MAC frames each including a destination address and a duration field, the duration field indicating a period during which a communication medium is occupied; a setting unit configured to set a same address to destination addresses of the plurality of MAC frames and set a same value to duration fields of the plurality of MAC frames; and a transmission unit configured to transmit the first physical frame to a destination communication apparatus, wherein: the first physical frame includes a physical header, the physical header including a first header for a first protocol and a second header for a second protocol, the second header following the first header, the first header is decodable by a first communication apparatus that supports the first protocol and a second communication apparatus that supports the second communication protocol, and the second header is decodable by the second communication apparatus.