公开(公告)号：JPH09186675A

公开(公告)日：1997-07-15

申请号：JP27911196

申请日：1996-10-22

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUNICATION

Inventor： SORU YON UKU ,  I CHIYAN BIYON ,  JIYON KIYON PIO

IPC: H04L1/00 ,  H04L12/28

Abstract: PROBLEM TO BE SOLVED: To improve the detection capacity of an error and to efficiently perform an inspection by performing an error detection and the inspection by utilizing the ordinal number bit in ordinal numbers. SOLUTION: In the reception part for the protocol processing of a division and a recoupling hierarchy, whether an error exists in the convergent part hierarchy instruction bit in the ordinal number or not is inspected and is corrected by the ordinal number inspection correction part 1 located at the front stage of an error detection correction part 2. A division/recoupling protocol data unit header and the information as to whether an error exists in the convergent part hierarchy instruction bit or not are delivered to the error detection correction part 2, a mode conversion is performed and the convergent part hierarchy instruction bit of the ordinal number is reinspected in an ordinal number inspection part 3. Next, the ordinal number based on this reinspected result and the data of the state of the ordinal number are delivered to the convergent part hierarchy.