METHOD, APPARATUS, SYSTEM FOR HYBRID-TRANSMITTING AND BRIDGING OF CIRCUIT SERVICE AND PACKET SERVICE

摘要

A method, an apparatus and a system for hybrid-transmitting and bridging of a circuit service and a packet service are provided according to the embodiments of the present invention. The apparatus for hybrid-transmitting and bridging includes a TDM framing unit, configured to implement conversion between an external line layer TDM signal outside the apparatus for hybrid-transmitting and bridging and channel layer TDM signals inside the apparatus for hybrid-transmitting and bridging, and transmit the channel layer TDM signals to a TDM three-direction cross unit; the TDM three-direction cross unit, configured to implement cross scheduling on TDM signals from a TDM cross apparatus, a mapping and encapsulating unit, and the TDM framing unit; the mapping and encapsulating unit, configured to convert a TDM signal from the TDM three-direction cross unit into packet service signals and provide the packet service signals to the packet processing unit, and to convert packet service signals from the packet processing unit into a TDM signal and provide the TDM signal to the TDM three-direction cross unit; and the packet processing unit, configured to forward packet service signals from the mapping and encapsulating unit and a packet switching apparatus.