公开(公告)号：JP2002359562A

公开(公告)日：2002-12-13

申请号：JP2002090164

申请日：2002-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAYER LUDWIG ,  BUERNER THOMAS ,  DOHMEN RALF

IPC: G06F11/10 ,  H03M13/15 ,  H03M13/45 ,  H04L1/00

Abstract: PROBLEM TO BE SOLVED: To provide a simplified effective decoding method for decoding algebraic block codes, used for channel coding for digital data transmission. SOLUTION: The method is executed, based on a syndrome polynomial R (X), together with a receiving device and a computer program, such that received words r are sampled at specified interpolation points α -α to obtain symbols r -r , a discrete Fourier transformation is applied to the symbols r -r , to obtain coefficients Ri for forming the polynomial R (X) and the error position retrieval is executed abut introduction of a defined elimination, based on the polynomial R (X).

公开(公告)号：JP2002314499A

公开(公告)日：2002-10-25

申请号：JP2002090125

申请日：2002-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAYER LUDWIG ,  BLEISTEINER BERND MARKUS K ,  NUETZEL BERTRAM T ,  ROBLEDO MIGUEL

IPC: H04J3/00 ,  H04J3/06 ,  H04J3/07 ,  H04J3/16

Abstract: PROBLEM TO BE SOLVED: To provide a digital data transmission system, method and device that can avoid or at least reduce defects in conventional technology. SOLUTION: In an STM-16/OC-48 signal 13 bytes of a frame alignment word are used to embed rate adaptation data. More precisely the frame alignment word comprises each 48 known A1 and A2 values from which 13 bytes are replaced by the rate adaptation data. The 13 bytes are four stuff bytes, one signaling byte, one parity compensation byte, one stuff control byte, a three-byte pointer and three byte for error protection by a Hamming code. The rate adaptation data are later replaced by the respective original values A1 or A2. Consequently and advantageously, data are transmitted data and timing transparent.