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Communication apparatus, communication method, and communication system

  • US 9,872,203 B2
  • Filed: 01/13/2017
  • Issued: 01/16/2018
  • Est. Priority Date: 01/09/2004
  • Status: Active Grant
First Claim
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1. An electronic circuit, comprising:

  • a receiver configured to receive a first physical frame comprising a first physical header, a first MAC frame length field, a first MAC frame, a second MAC frame length field, and a second MAC frame, the first physical header comprising a first signal field for a first protocol and a second signal field for a second protocol, the second signal field following the first signal field, the first signal field comprising a first rate field and a first length field, the second signal field comprising a second length field, the first MAC frame length field representing a length of the first MAC frame, the first MAC frame comprising a first address field, a first duration field, a first frame body, and a first frame check sequence, the second MAC frame length field representing a length of the second MAC frame, the second MAC frame comprising a second address field, a second duration field, a second frame body, and a second frame check sequence, wherein a value of the first duration field and a value of the second duration field are same, and an address in the first address field and an address in the second address field are same; and

    a transmitter configured to transmit a second physical frame comprising an acknowledgement frame which is separated by a Short IFS (SIFS) from the first physical frame as a response, wherein the acknowledgement frame comprises a bitmap representing reception statuses of at least one of the first MAC frame or the second MAC frame.

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