发明授权
US5168494A Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy 失效
用于经由同步数字多路复用层次的网络在支路单元级联中发送数字宽带信号的方法

  • 专利标题: Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy
  • 专利标题(中): 用于经由同步数字多路复用层次的网络在支路单元级联中发送数字宽带信号的方法
  • 申请号: US691676
    申请日: 1991-04-25
  • 公开(公告)号: US5168494A
    公开(公告)日: 1992-12-01
  • 发明人: Horst Mueller
  • 申请人: Horst Mueller
  • 申请人地址: DEX Munich
  • 专利权人: Siemens Aktiengesellschaft
  • 当前专利权人: Siemens Aktiengesellschaft
  • 当前专利权人地址: DEX Munich
  • 优先权: DEX3939466 19891129
  • 主分类号: H04J3/06
  • IPC分类号: H04J3/06 H04B7/24 H04J3/00 H04J3/16 H04L5/22
Method for transmitting a digital broadband signal in a tributary unit
concatenation via a network of a synchronous digital multiplex hierarchy
摘要:
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.sub.1 through TU-12.sub.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.sub.1) allocated to them. The individual tributary units (TU-12.sub.1 through TU-12.sub.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.sub.2, TU-12.sub.5) are delayed by delay elements (L2, L5).
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