초록 ▼

Methods and systems are provided for synchronization of a mobile terminal to a communication system which provide faster access to the communication system and reduced risk of non-productive battery power consumption. In particular, the methods and systems of the present invention test one candidate

Methods and systems are provided for synchronization of a mobile terminal to a communication system which provide faster access to the communication system and reduced risk of non-productive battery power consumption. In particular, the methods and systems of the present invention test one candidate carrier from a list of candidate carriers and perform a power profile to obtain an indication of signal strength of the carrier. This signal measurement is then compared to a threshold criteria. If the criteria is satisfied, the mobile terminal attempts synchronization with that carrier and, if successful, establishes a connection with the communication system. If the criteria is not satisfied, another candidate carrier is selected and tested similarly. Furthermore, the methods and systems of the present invention provide for tiered searching for a valid carrier with each level providing an increased likelihood of finding a carrier while, potentially, requiring a greater amount of time to obtain synchronization. The methods and systems of the present invention also provide a hierarchical approach to searching when no carrier has been identified which reduces the rate of battery power consumption while the mobile terminal is attempting to synchronize with a communication system.

대표청구항 ▼

1. A method for initial synchronization of a mobile terminal with a communication system, the mobile terminal having a list of candidate carriers for the communication system, the method comprising the steps of:selecting a first carrier from the list of candidate carriers, wherein the mobile termina

1. A method for initial synchronization of a mobile terminal with a communication system, the mobile terminal having a list of candidate carriers for the communication system, the method comprising the steps of:selecting a first carrier from the list of candidate carriers, wherein the mobile terminal is not synchronized to the communication system; generating a power profile of the first carrier before attempting to synchronize to the first carrier; comparing the power profile of the first carrier to a first threshold criteria; and then synchronizing to the first carrier if the power profile of the first carrier satisfies the first threshold criteria.