Communication apparatus, communication method, and communication system
First Claim
1. 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, andthe second header is decodable by the second communication apparatus.
1 Assignment
0 Petitions
Accused Products
Abstract
A physical frame is constructed, the physical frame including a medium access control super-frame payload which in turn includes a plurality of medium access control frames. With respect to the constructed physical frame, virtual carrier sense information is set in the plurality of medium access control frame so that a result of carrier sense is identical to another by virtual carrier sense based on the plurality of medium access control frames in the medium access control super-frame payload. The physical frame in which the virtual carrier sense information has been set is transmitted to a destined communication apparatus.
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Citations
30 Claims
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1. A semiconductor integrated circuit including a CPU that executes firmware, the semiconductor integrated circuit comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 25, 26)
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10. A semiconductor integrated circuit, comprising:
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a CPU configured to execute firmware; 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.
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11. A communication apparatus, comprising:
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an antenna; and 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 through the antenna, 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. - View Dependent Claims (27)
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12. A semiconductor integrated circuit including a CPU that executes firmware, the semiconductor integrated circuit comprising:
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a reception unit configured to receive 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, wherein a same address is set to destination addresses of the plurality of MAC frames, and a same value is set to duration fields of the plurality of MAC frames; and a determination unit configured to determine, if a destination address of a first MAC frame, in which no error is detected with a first check sequence, is not identical to a self address, that the communication medium is busy during occupation period, wherein the occupation period is indicated in a duration field of the first MAC frame, 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. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 28, 29)
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23. A semiconductor integrated circuit, comprising:
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a CPU configured to execute firmware; a reception unit configured to receive 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, wherein a same address is set to destination addresses of the plurality of MAC frames, and a same value is set to duration fields of the plurality of MAC frames; and a determination unit configured to determine, if a destination address of a first MAC frame, in which no error is detected with a first check sequence, is not identical to a self address, that the communication medium is busy during occupation period, wherein the occupation period is indicated in a duration field of the first MAC frame, 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.
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24. A communication apparatus, comprising:
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an antenna; and a semiconductor integrated circuit including a CPU that executes firmware, the semiconductor integrated circuit comprising; a reception unit configured to receive a single first physical frame including a plurality of MAC frames through the antenna, 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, wherein a same address is set to destination addresses of the plurality of MAC frames, and a same value is set to duration fields of the plurality of MAC frames; and a determination unit configured to determine, if a destination address of a first MAC frame, in which no error is detected with a first check sequence, is not identical to a self address, that the communication medium is busy during occupation period, wherein the occupation period is indicated in a duration field of the first MAC frame, 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. - View Dependent Claims (30)
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Specification