초록 ▼

A pair of stations are associated with each other so that a data frame is transmittable from either to the other, the data frame including as basic fields thereof a header field, a data field with a data sequence, and a frame check field. The former comprises a calculator for calculating a total len

A pair of stations are associated with each other so that a data frame is transmittable from either to the other, the data frame including as basic fields thereof a header field, a data field with a data sequence, and a frame check field. The former comprises a calculator for calculating a total length of the basic fields, as a basic length, and/or for calculating a current error rate, a controller depending on the basic length and/or the current error rate to make either of an affirmative decision for and a negative decision against sending a request for an acknowledgment of a reception of an entire length of the data frame by the latter, and a formatter for formatting the data sequence into the data frame, the formatter being responsive to the affirmative decision to combine the basic fields and a message field containing the request, to constitute the data frame.

대표청구항 ▼

A wireless LAN system, comprising: a first station and a second station having an established association with each other so that a formatted first frame is transmittable from said first station to said second station, said first frame including as basic fields thereof a first header field, a data f

A wireless LAN system, comprising: a first station and a second station having an established association with each other so that a formatted first frame is transmittable from said first station to said second station, said first frame including as basic fields thereof a first header field, a data field with a variable-length data sequence, and a first frame check field with a calculated value for a check of an entire length of said first frame, and a formatted second frame is transmittable from said second station to said first station: said first station comprising: a calculation means for calculating a total length of said basic fields of said first frame, as a basic length of said first frame; a first control means for depending on said basic length of said first frame to make either of an affirmative decision for and a negative decision against sending a first message for requesting an acknowledgment of a reception of said entire length of said first frame by said second station; a formatter means for formatting said data sequence into said first frame; said formatter means being responsive to said affirmative decision to combine said basic fields of said first frame and a first message field containing said first message, to thereby constitute said first frame; and a first transmission means for transmitting said first frame.