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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
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.
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公开(公告)号：DE60108728D1
公开(公告)日：2005-03-10
申请号：DE60108728
申请日：2001-06-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BLEISTEINER BERND M , ROBLEDO MIGUEL , STICHT KONRAD , URBANSKY RALPH STEFFEN PETER
Abstract: Method and apparatus for transmitting and receiving a plurality of individual tributary signals in multiplex form via a common line. At the transmitting end, the tributary signals, each of which having a similar initial frequency, are converted into a compound signal having a frame structure with a common data rate. At the receiving end from the compound signal each individual tributary signal is retrieved with its initial frequency. A phase information signal portion including a respective phase difference between each tributary signal and the compound signal is formed and inserted into the compound signal in the shape of respective coded bits, and the initial frequency of each tributary signal is recovered from the phase information signal portion included in the respective coded bits belonging to the respective tributary signals.
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公开(公告)号：DE60108728T2
公开(公告)日：2006-05-11
申请号：DE60108728
申请日：2001-06-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BLEISTEINER BERND M , ROBLEDO MIGUEL , STICHT KONRAD , URBANSKY RALPH STEFFEN PETER
Abstract: Method and apparatus for transmitting and receiving a plurality of individual tributary signals in multiplex form via a common line. At the transmitting end, the tributary signals, each of which having a similar initial frequency, are converted into a compound signal having a frame structure with a common data rate. At the receiving end from the compound signal each individual tributary signal is retrieved with its initial frequency. A phase information signal portion including a respective phase difference between each tributary signal and the compound signal is formed and inserted into the compound signal in the shape of respective coded bits, and the initial frequency of each tributary signal is recovered from the phase information signal portion included in the respective coded bits belonging to the respective tributary signals.
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公开(公告)号：CA2381834A1
公开(公告)日：2002-12-15
申请号：CA2381834
申请日：2002-04-16
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ROBLEDO MIGUEL , BLEISTEINER BERND MARKUS K , STICHT KONRAD , URBANSKY RALPH STEFFEN PETER
Abstract: Method and apparatus for transmitting and receiving a plurality of individu al tributary signals in multiplex form via a common line. At the transmitting end, the tributary signals, each of which having a similar initial frequency, are converted into a compound signal having a frame structure with a common data rate. At the receiving end from the compound signal each individual tributary signal is retrieved with its initial frequency. A phase informatio n signal portion including a respective phase difference between each tributary signa l and the compound signal is formed and inserted into the compound signal in the shape of respective coded bits, and the initial frequency of each tributary signal is recovered from the phase information signal portion included in th e respective coded bits belonging to the respective tributary signal.
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