Wireless communication terminal

A wireless communication terminal comprising:

• (A) a receiver which receives, from an external device, a frame including n frame sets each including a subheader field, a frame check sequence field, and a frame body field including data, where n is an integer equal to or greater than 2;
• wherein the subheader field includes:
• a sequence number field which notifies a sequence number representing an order of the frame body field based on an integer sequence number counter incrementing by one;
• a more fragment field which notifies whether or not there is remaining fragmented data following the frame body field;
• and
• a frame body length field which notifies a length of the frame body field;
• and
• (B) a transmitter which transmits, to the external device, a response frame notifying a successively and successfully received maximum sequence number after a fixed time has elapsed from reception of the frame including the n frame sets,
• wherein the receiver executes a defragment process of the data based on the more fragment field,
• wherein the successively and successfully received maximum sequence indicates a highest sequence number among sequence numbers indicated in sequence number fields of frame sets which were successively and successfully received from among the n frame sets included in the received frame, and
• wherein the transmitter transmits only one response frame per received frame, even if a plurality of the n frame sets are included in the received frame and are successively and successfully received by the receiver.

A wireless communication method comprising:

• (A) transmitting, with a transmitter, to an external device, a frame which includes n frame sets each including a subheader field, a frame check sequence field, and a frame body field including data, where n is an integer equal to or greater than 2, and wherein the subheader field includes:
• (i) a sequence number field which notifies a sequence number representing an order of the frame body field based on an integer sequence number counter incrementing by one, (ii) a more fragment field which notifies whether or not there is remaining fragmented data following the frame body field, and (iii) a frame body length field which notifies a length of the frame body field;
• (B) receiving, with a receiver, from the external device, a response frame notifying a successively and successfully received maximum sequence number, wherein the successively and successfully received maximum sequence number indicates a highest sequence number among sequence numbers indicated in sequence number fields of frame sets which were successively and successfully received by the external device from among the n frame sets included in the transmitted frame, and wherein the receiver receives only one response frame per transmitted frame, even if a plurality of the n frame sets are included in the transmitted frame and are successively and successfully received by the external device;
• and
• (C) retransmitting, with the transmitter, the data based on at least one of (i) whether or not reception of the response frame has begun after a fixed time has elapsed from transmission of the frame including the n frame sets and (ii) the successively and successfully received maximum sequence number.

A wireless communication method comprising:

• (A) receiving, with a receiver, from an external device, a frame including n frame sets each including a subheader field, a frame check sequence field, and a frame body field including data, where n is an integer equal to or greater than 2, wherein the subheader field includes:
• (i) a sequence number field which notifies a sequence number representing an order of the frame body field based on an integer sequence number counter incrementing by one, (ii) a more fragment field which notifies whether or not there is remaining fragmented data following the frame body field, and (iii) a frame body length field which notifies a length of the frame body field;
• (B) transmitting, with a transmitter, to the external device, a response frame notifying a successively and successfully received maximum sequence number after a fixed time has elapsed from reception of the frame including the n frame sets;
• and
• (C) executing, with the receiver, a defragment process of the data based on the more fragment field,
• wherein the successively and successfully received maximum sequence indicates a highest sequence number among sequence numbers indicated in sequence number fields of frame sets which were successively and successfully received from among the n frame sets included in the received frame, and
• wherein the transmitter transmits only one response frame per received frame, even if a plurality of the n frame sets are included in the received frame and are successively and successfully received by the receiver.