Method for control of error of wide-band radio communication link layer and computer readable medium

Application Number: 00126197
Application Date: 2000.08.25
Publication Number: 1286553
Publication Date: 2001.03.07
Priority Information: 1999/8/27 KR 35839/99
International: H04B7/26;H04L1/12
Applicant(s) Name: Samsung Electronics Co., Ltd.
Inventor(s) Name: Gang Woo-Sik;Chang Kyong-Hoon;Gang Chong-Gv
Patent Agency Code: 11105
Patent Agent: ma ying
Abstract A method for controlling errors in a wireless link layer using a simultaneous multiple copy scheme and an adaptive forward error correction (FEC) scheme in a wideband wireless communication is provided. The method uses an automatic repeat request (ARQ) scheme, in which a wideband wireless channel is used for communication between a first node and a second node, includes the steps of (a) estimating the error ratio of a forward channel using the state of a backward channel, and transmitting a cell, in which a forward error correction (FEC) code having an encoding ratio that varies depending on the estimated error ratio is included in a protocol data unit (PDU) of a wireless link layer, through the forward channel and (b) re-transmitting the copy of a cell transmitted in the step (a), when feedback information that indicates that an error exists in the cell transmitted in the step (a) is received through the backward channel.