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US 6,618,584 B1Granted
Terminal authentication procedure timing for data calls
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsCaisa Carneheim, Marie Moynihan
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AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsCaisa Carneheim, Marie Moynihan
Estimating the term…
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.
A method for triggering mobile station authentication in a wireless communications system, comprising the steps of:
A method for triggering mobile station authentication in a wireless communications system, comprising the steps of:
A method for triggering mobile station authentication in a wireless communications system, comprising the steps of:
A system comprising a mobile station and a supporting wireless communications system, the system operating in response to a change in operational state of the mobile station to set a timer to measure a predetermined time period and engage in an authentication transaction between the mobile station and the supporting wireless communications system in response to a monitored expiration of that measured predetermined time period.
A system comprising a mobile station and a supporting wireless communications system, wherein the mobile station in engaged in a data call, the system operating to place the mobile station into a first operational state wherein an air interface connection with the wireless communications system is disconnected but the non-air interface resources remain connected supporting the data call, and engage in an authentication transaction between the mobile station and the wireless communications system in response to a monitored change from the first operational state to a second operational state wherein the air interface connection is re-connected to support the data call.
A system comprising a mobile station and a supporting wireless communications system, wherein the mobile station is engaged in a call and is in a first operational state in connection with supporting that call, the system operating while that call continues to set a timer to measure a predetermined time period and engage in an authentication transaction between the mobile station and the wireless communications system in response to a monitored change from the first operational state to a second operational state in connection with supporting that call following expiration of the monitored time period.
Dependencies are inferred from the claim text.