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US5168494A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy

Assignee: Siemens AG
•
Filing: 1991-04-25
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Granted: 1992-12-01
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Expires: 2011-04-25
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Abstract

Abstract 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).

Inventors

  • 👤 Horst Mueller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:24
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/16; H04J3/1605; H04J3/1611

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 149 words
A method for transmitting a digital broadband signal having a bit rate of an intermediate hierarchy level via a multiplexing equipment, via a link network having cross-connect equipment controlled by an exchange, and via a demultiplexing equipment of a synchronous digital multiplex hierarchy, with conversion of the broadband signal into a tributary unit concatenation composed of at least two tributary units or composed of at least two tributary unit groups, and with allocation of a first pointer to the first tributary unit of the tributary unit concatenation, the method comprising the steps of: allocating respectively one pointer of an identical value as that of the first pointer to all following tributary units; transmitting independently of one another the tributary units; recognizing the chronological arrival of the tributary units at the receive side via their pointers; and chronologically regenerating the tributary unit concatenation by a delay of leading tributary units.
Claim 2
Independent Claim 149 words
A method for transmitting a digital broadband signal having a bit rate of an intermediate hierarchy level via a multiplexing equipment, via a link network having cross-connect equipment controlled by an exchange, and via a demultiplexing equipment of a synchronous digital multiplex hierarchy, with conversion of the broadband signal into a tributary unit concatenation composed of at least two tributary units or composed of at least two tributary unit groups, and with allocation of a first pointer to the first tributary unit of the tributary unit concatenation, the method comprising the steps of: allocating respectively one pointer of an identical value as that of the first pointer to all following tributary units; transmitting independently of one another the tributary units; recognizing the chronological arrival of the tributary units at the receive side via their pointers; and chronologically regenerating the tributary unit concatenation by a delay of leading tributary units.
Claim 3
Dependent Claim 27 words
The method according to claim 1, wherein the tributary unit concatenation is formed of at least one tributary unit and of at least one tributary unit group.
Claim 4
Independent Claim 144 words
A method for transmitting a digital broadband signal having a bit rate of an intermediate hierarchy level via a multiplexing equipment, via a link network having cross-connect equipment controlled by an exchange, and via a demultiplexing equipment of a synchronous digital multiplex hierarchy, the method comprising the steps of: converting the broadband signal into a tributary unit concatenation composed of at least two tributary units or composed of at least two tributary unit groups; allocating a first pointer to the first tributary unit of the tributary unit concatenation; allocating respectively one pointer of an identical value as that of the first pointer to all following tributary units; transmitting independently of one another the tributary units; recognizing the chronological arrival of the tributary units at the receive side via their pointers; and chronologically regenerating the tributary unit concatenation by a delay of leading tributary units.
Claim 5
Independent Claim 144 words
A method for transmitting a digital broadband signal having a bit rate of an intermediate hierarchy level via a multiplexing equipment, via a link network having cross-connect equipment controlled by an exchange, and via a demultiplexing equipment of a synchronous digital multiplex hierarchy, the method comprising the steps of: converting the broadband signal into a tributary unit concatenation composed of at least two tributary units or composed of at least two tributary unit groups; allocating a first pointer to the first tributary unit of the tributary unit concatenation; allocating respectively one pointer of an identical value as that of the first pointer to all following tributary units; transmitting independently of one another the tributary units; recognizing the chronological arrival of the tributary units at the receive side via their pointers; and chronologically regenerating the tributary unit concatenation by a delay of leading tributary units.
Claim 6
Dependent Claim 27 words
The method according to claim 3, wherein the tributary unit concatenation is formed of at least one tributary unit and of at least one tributary unit group.

References Cited (Backward Citations)

US4484327A Cited
US4787081A Cited
US4862480A Cited
EP0342510A1 Cited
US4967405A Cited
US4998242A Cited
US5040170A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-12-01 1996-06-01 1996-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-12-01 2000-06-01 2000-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-12-01 2004-06-01 2004-12-01 $7700.00 Window Closed / Lapsed

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