Patent ID: 6219525
Filing Date: 2001-04-17
Classification: H04W

Abstract:
An access network system comprising:a controller for an access network, the controller connecting to a local switch through subscriber lines, and concentrating the subscriber lines;at least one base station connecting to said controller; andat least one unit of user equipment connecting to said base station through a wireless circuit, and connecting to a user terminal,wherein said base station comprises:first notification means for notifying said controller of an absence of an idle wireless channel when no available channel is present in the wireless circuit between said user equipment and said base station when the local switch makes a call request to said user terminal, andwherein said controller comprises:call processing reserving means for reserving call processing of the call request when said first notification means notifies said controller of the absence of an idle wireless channel;a timer for counting to a timer value;call processing means for starting said timer at a beginning of a reservation of the call processing of the call request, for, when said timer completes counting to the timer value, releasing the reservation of the call processing of the call request, and for carrying out the call processing of the call request to said user equipment through said base station, if the call request continues; andtimer restart means for restarting said timer in response to reserving the call processing of the call request a second time when said first notification means renotifies said controller of the absence of an idle wireless channel.