Patent ID: 6418132
Filing Date: 2002-07-09
Classification: H04Q,H04W

Abstract:
A multi-directional multiplex communication system comprising a base station connected to an Integrated Services Digital Network (ISDN) and at least one substation having a plurality of terminals connected thereto and serving to communicate with said base station through a radio channel;said substation including a first layer 1 terminating circuit and a first layer 2 terminating circuit for respectively terminating layer 1 and layer 2 with respect to said plurality of terminals; and said base station comprising: a second layer 1 terminating circuit and a second layer 2 terminating circuit for respectively terminating layer 1 and layer 2 with respect to said ISDN; channel control means for transmission channel assignment/release between said base station and said substation by a demand-assignment scheme in accordance with generation/end of a call; and a channel management table, wherein said channel control means performs transmission channel assignment/release by looking up said channel management table upon generation/end of a call, and rewrites portions of said channel management table.