METHOD AND SYSTEM FOR TRANSMITTING COMMUNICATION INFORMATION BY VARIABLE LENGTH DATA BLOCK ON TRANSMISSION LINK OF ASYNCHRONOUS TIME DIVISION MULTIPLEX SYSTEM

摘要

PURPOSE: To provide a method and device which transmit communication information by variable length data blocks on a transmission link of an asynchronous time division multiplex system. ;CONSTITUTION: Data blocks BD0, BD1... are continuously transmitted on the transmission link, and each data block is effective when including communication information actually but is empty when including no communication information. Each effective data block includes a header sub-block sbet of a first type including control data and at least one effective information data sub-block sbd1 of a second type including communication information, and each empty data block includes an empty sub-block sbv1 of a third type. Sub-blocks of one of three types have a length different from those of two other types.;COPYRIGHT: (C)1993,JPO