公开(公告)号：US4611321A

公开(公告)日：1986-09-09

申请号：US638353

申请日：1984-08-06

申请人： Luciano Gabrielli ,  Nicola Lotito ,  Maurizio Sposini

发明人： Luciano Gabrielli ,  Nicola Lotito ,  Maurizio Sposini

IPC分类号： H04Q11/04 ,  H04L12/407 ,  H04L12/64 ,  H04M11/06

CPC分类号： H04M11/06 ,  H04L12/64

摘要： A variable-band distributed switching node comprises a plurality of independent modules (MU.sub.1 . . . MGm) inserted between subscriber or trunk lines and a common bus (1). Each module includes an input/output portion (IU, HL, SL, PL), processing line information, and an interface (IB) toward the bus which co-operates with the interfaces of the other modules to form hybrid frames on the bus. These frames are each divided into a first region RC, encompassing a plurality of channels assigned to circuit-switched communications, and a residual-band second portion RP shared by packet-switched communications. Such frames are dynamically managed by assigning to each circuit-switched channel a band which can differ in consecutive frames to satisfy the requirements of variable-band sources and by recompacting the channels remaining in region RC after each channel release.

摘要翻译： 可变带分布式交换节点包括插入订户或中继线之间的多个独立模块（MU1 ... MGm）和公共总线（1）。 每个模块包括输入/​​输出部分（IU，HL，SL，PL），处理线信息和朝向与其它模块的接口协作的总线的接口（IB），以在总线上形成混合帧。 这些帧分别被分成包含分配给电路交换通信的多个信道的第一区域RC以及由分组交换通信共享的残余频带第二部分RP。 通过向每个电路交换信道分配可以在连续帧中不同的频带以满足可变频带源的要求并且通过在每个频道释放之后重新压缩区域RC中剩余的频道来动态地管理这样的帧。