H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04J 3/16 (2006.01) H04L 12/20 (2006.01)
Patent
CA 2030954
Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy. A pointer for positional identification in a frame is allocated to the first tributary unit in a tributary unit concatenation; instead of a pointer, the further tributary units receive a concatenation indicator. Every cross-connect equipment along a transmission link recognizes the tributary unit concatenation and forwards the tributary units thereof in the correct sequence. When a clock matching is required in the case of a first tributary unit, a pointer skip is initiated at all further tributary units. This requires hardware and software. This is eliminated when all tributary units (TU-12 1 through TU-12 5) containing the broadband signal (DSa) have a pointer (PTR1 through PTR5) having the value of the positional identification of the first tributary unit (TU-12 1) allocated to them. The individual tributary units (TU-12 1 through TU-12 5) can then pass the cross-connect equipment, if necessary with an individual pointer skip (PS), independently of one another. A restoration of the tributary unit concatenation occurs at the reception side after the recognition of the pointers (PTR1 through PTR5) in that leading tributary units (TU-12 2, TU-12 5) are delayed by delay elements (L2, L5).
Fetherstonhaugh & Co.
Siemems Aktiengesellschaft
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