| 摘要 |
A method of delivering a system-initiated call to a called mobile station in a radio telecommunications network following an unsuccessful initial attempt. The method implements several levels of call control. In level-1, a time delay is implemented (90) between call attempts. The method reattempts delivery of the call (110) at the expiration of the time delay (100) or if the mobile station accesses the network before the time delay expires (120). A call-attempt counter is incremented when each delivery attempt is made (110). The delivery attempts are stopped (80) when the call-attempt counter equals a predefined maximum number of call attempts (70). In level-2, a threshold level of channel availability in the network is defined (21), and the method attempts an initial delivery of the system-initiated call to the called mobile station (40) when the actual channel availability in the network is above the threshold level of channel availability (22). If the actual channel availability is below the threshold, the system-initiated call is delayed until the actual channel availability rises above the threshold level of channel availability (23). In level-3, a priority is set for each type of call in the network (30). If the system-initiated call is not the highest priority call to be delivered (31), higher priority calls are delivered first (32). If the system-initiated call is the highest priority call to be delivered, the method attempts to deliver the system-intitiated call first. The priority may be based upon each call's revenue-generating potential, subscriber priority, or age of the call.
|
