| 摘要 |
A PCS switching system where a wireless set registers on a base station regardless of whether the base station has capacity to complete a call for the wireless set. When an incoming call is received for the wireless set, a central computer providing overall control of the PCS system directs this call to a paging zone controller of a paging zone in which the wireless set is registered. If the base station does not have capacity to handle that call, the paging zone controller transmits a message via the base station and a paging channel to the wireless set informing the wireless set that a page is pending and that it must find a base station with idle capacity. The wireless set does this by listening to the paging channel until a base station is determined that has idle capacity. The base stations periodically transmit on the paging channel, and each of their messages includes the present capacity of the base station. The wireless set establishes communication with the new base station and ceases to be in communication with the original base station. Since the wireless set is already registered with the paging zone controller, it is not necessary for the paging zone controller to re-register the wireless set with the wireless switching network when the wireless set moves from one base station to another base station within the same paging zone. <IMAGE> |
