Patent ID: 7903632
Filing Date: 2011-03-08
Classification: H04L

Abstract:
1. A communication apparatus, comprising: a receiving device configured to receive one physical frame, the physical frame including a plurality of data frames, and each of the data frames being an unfragmented MSDU (MAC Service Data Unit); a detecting device configured to detect whether each of the plurality of data frames are successfully received and provide reception statuses of the plurality of data frames; an acknowledgement frame forming device configured to form an acknowledgement frame including a starting sequence control and an acknowledgement bitmap, the acknowledgement bitmap being 8 octets, each bit of the acknowledgement bitmap indicating a reception status of each of a plurality of data frames, the acknowledgement bitmap representing a reception statuses of a plurality of data frames from a data frame with a sequence number equal to a starting sequence number in the starting sequence control; and a transmitting device configured to transmit the acknowledgement frame, wherein in response to the physical frame, the acknowledgement frame forming device sets the value of a starting sequence number in the acknowledgement frame so that the acknowledgement bitmap includes the reception status of all of the plurality of data frames that are successfully received.