Patent ID: 7899041
Filing Date: 2011-03-01
Classification: H04L,H04M,H04Q

Abstract:
1. A demultiplexing method of receiving a multiplexed signal obtained by multiplexing a plurality of communication signals from a multiplexed signal transmitting section, demultiplexing the multiplexed signal into communication signals, and transmitting the demultiplexed communication signals to a communication signal receiving section, the method comprising: adding, to each of the plurality of communication signals, an identification address preassigned to a predetermined signal identifying section through which a communication signal passes in a multiplexing system, including the multiplexed signal transmitting section and the communication signal receiving section, and outputting each of the communication signals; extracting the identification address from each of the output signals; demultiplexing the multiplexed signal for each of the communication signals on a basis of the extracted identification address; and transferring, when the communication signals include a data packet, the data packet to a first interface block, and when the communication signals include a control packet, transferring the control packet to a Point-to-Point Protocol (PPP) processor, wherein, when the communication signals are received through a second interface block and include a data packet, the data packet is transferred to the first interface block on a basis of an IP address of the communication signals, and the data packet is transmitted to a backbone network upon converting the packet into a packet over SDH/SONET (Synchronous Digital Hierarchy/Synchronous Optical Network) (POS) signal, and wherein, when the communication signals in a multiplexed signal received from said demultiplexing apparatus through the second interface block include a control packet, the control packet is transferred to a PPP processor on a basis of an IP address of the control packet.