Relocation control of substrate channels

摘要

A channel allocation control is performed in an ISDN network comprising full-rate channels each accommodating subrate channels multiplexed therein. A use communication capacity of each full-rate channel is monitored when subrate channel release occurs in any full-rate channel. Referring to the respective use communication capacities of the full-rate channels, subrate channel reallocation is performed such that any subrate channel in use accommodated in a certain full-rate channel is switched to another full-rate channel. The reallocation causes the full-rate channel to be empty. The emptied full-rate channel is released.