Wireless communication terminal

摘要

According to one embodiment, a wireless communication terminal including a receiver, a first processor, a first storage, a second storage, a second processor, and a transmitter is provided. The receiver receives one physical packet that includes at least one frame body field, a first field including information on a length of the frame body field, a second field used to detect an error of the frame body field, and a sequence number field including a sequence number corresponding to the frame body field. The second storage retains a successively and successfully received maximum sequence number on the basis of a result of the first processor. The transmitter transmits a response frame indicating the successively and successfully received maximum sequence number when the first processor extracts at least one correct frame body.

主权项

1. A wireless communication terminal comprising:
(A) a transmitter which transmits, 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;
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; anda frame body length field which notifies a length of the frame body field; and (B) a receiver which receives, 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, 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 wherein the transmitter retransmits 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.