Method and Apparatus for Fast Link Setup in a Wireless Communication System

Abstract

A method and apparatus for a communication system provide for fast link setup for a mobile station by transmitting a request message, transmitting an assignment message from the base station to the mobile station, and transmitting a notification message from the base station to a base station controller. The mobile station transmits an indication message to the base station controller indicating a successful completion of acquiring the data packet channel. The base station controller processes the indication message for message integrity and security feature. A portion of the available communication resources at the base station is allocated for an immediate response to the request message for acquiring a data packet channel.

1 . A method for a communication system comprising:
 receiving a notification message from a base station, the notification message informing a base station controller of a mobile station in process of establishing a radio link with the base station;   starting a timer at the base station controller for measuring elapsed time after receiving the notification message; and   transmitting a radio link release message from the base station controller to the base station in response to detecting expiration of the timer with respect to a timer threshold.   
     
     
         2 . The method as recited in  claim 1  further comprising:
 receiving an indication message from the mobile station at the base station controller indicating a successful completing of acquiring a data packet channel by the mobile station.   
     
     
         3 . The method as recited in  claim 2  further comprising:
 processing the indication message for message integrity at the base station controller.   
     
     
         4 . The method as recited in  claim 3  further comprising:
 transmitting a radio link release message from the base station controller to the base station in response to detecting a failure of the mobile station in passing the processing for message integrity.   
     
     
         5 . The method as recited in  claim 2  further comprising:
 processing the indication message for security feature at the base station controller.   
     
     
         6 . The method as recited in  claim 5  further comprising:
 transmitting a radio link release message from the base station controller to the base station in response to detecting a failure of the mobile station in passing the processing for security feature.   
     
     
         7 . An apparatus for a communication system comprising:
 means for receiving a notification message from a base station, the notification message informing a base station controller of a mobile station in process of establishing a radio link with the base station;   means for starting a timer at the base station controller for measuring elapsed time after receiving the notification message; and   means for transmitting a radio link release message from the base station controller to the base station in response to detecting expiration of the timer with respect to a timer threshold.   
     
     
         8 . The apparatus as recited in  claim 7 , further comprising:
 means for receiving an indication message from the mobile station at the base station controller indicating a successful completing of acquiring a data packet channel.   
     
     
         9 . The apparatus as recited in  claim 8  further comprising:
 means for processing the indication message for message integrity at the base station controller.   
     
     
         10 . The apparatus as recited in  claim 9  further comprising:
 means for transmitting a radio link release message from the base station controller to the base station in response to detecting a failure of the mobile station in passing the processing for message integrity.   
     
     
         11 . The apparatus as recited in  claim 8  further comprising:
 means for processing the indication message for security feature at the base station controller; and   means for transmitting a radio link release message from the base station controller to the base station in response to detecting a failure of the mobile station in passing the processing for security feature.