METHOD FOR DYNAMICALLY MANAGING PACKET SEGMENT THRESHOLD VALUE REFLECTING RADIO CHANNEL CHARACTERISTICS

摘要

PURPOSE: A method for dynamically managing a packet segment threshold value reflecting radio channel characteristics is provided to reduce a packet transmission error by continuously monitoring a state of a radio channel and dynamically changing a segment threshold value according to a change in a temporal and spatial channel state. CONSTITUTION: It is determined whether a packet has been transmitted(310). If a packet has been transmitted, it is determined whether an ACK message has been received(320). Response message reception signal strength information is received(330). If the ACK message has been received, a segment threshold value controller monitors a reception signal of every packet and determines a signal strength level(340). If the ACK message has been successfully received, a segment threshold value is increased according to the signal strength level(350). If the ACK message has not been received, it is determined that a packet has been lost and the segment threshold value is reduced to a certain minimum value(340). If a packet is not transmitted but received, a signal strength level is determined(360).