TRANSMISSION TIME CALCURATION METHOD AND APPARATUS OF FRAME INSERTED CHANNEL ESTIMATION PATTERNS IN OFDM SYSTEM

摘要

PURPOSE: A method and a device thereof are provided to calculate accurate frame transmission time by using a same method regardless of the change of a pattern interval inserted for estimating a channel and an insertion start reference value. CONSTITUTION: A transmission frame checking part(110) calculates the length of a transfer frame as a bit value. The transmission frame checking part compares the length of the transmission frame with a predetermined reference value of an insertion pattern for estimating a channel. A pattern insertion part(120) inserts at least one pattern for estimating a channel into a frame which is greater than the predetermined reference value. A transmission time calculating part(130) calculates the transmission time of a frame which has a pattern for estimating at least one channel in order to estimate a channel. A controller(140) controls an entire operation. A communications part(150) transmits an RTS(Request to Send) to a base station for reserving a channel generated in the controller.