Abstract: A subscriber terminal initiates an authentication procedure with a supporting wireless communications system in response to either a timer expiration based trigger, a state change based trigger, or a combination timer/state based trigger. With respect to the timer expiration based trigger, a countdown timer is set by either the subscriber terminal or the supporting system and thereafter monitored for expiration to trigger authentication. For the state change based trigger, the subscriber terminal monitors for any transition from an operating state wherein use of an air interface connection with the supporting system has been suspended to trigger authentication. Furthermore, for the combination timer/state based trigger, the subscriber terminal sets a countdown timer and monitors for an operating state transition that occurs subsequent to timer expiration to trigger authentication.

Abstract: The present invention comprises a method and apparatus for synchronizing data frames from a wide bandwidth data stream which is divided up and transmitted across a plurality of parallel channels in a mobile telephone system. Prior to transmitting the data frames, a transmit synchronizer synchronizes data frames aligned in the same position in different parallel channels by inserting a common bit from a repeating PN synchronization sequence into the aligned data frames. Upon receiving the data frames at a destination, a receive synchronizer extracts the synchronization bit from each data frame. A series of sequential bits from each parallel channel is compared against the original PN synchronization sequence to identify the position of each data frame relative to the other data frames and reconstructs the original wide bandwidth data stream.

Abstract: The present invention comprises a method and apparatus for synchronizing data frames from a wide bandwidth data stream which is divided up and transmitted across a plurality of parallel channels in a mobile telephone system. Prior to transmitting the data frames, a transmit synchronizer synchronizes data frames aligned in the same position in different parallel channels by inserting a common bit from a repeating PN synchronization sequence into the aligned data frames. Upon receiving the data frames at a destination, a receive synchronizer extracts the synchronization bit from each data frame. A series of sequential bits from each parallel channel is compared against the original PN synchronization sequence to identify the position of each data frame relative to the other data frames and reconstructs the original wide bandwidth data stream.