Patent ID: 7280828

Claim:
A method for selectively granting service in a GSM network, comprising: receiving a first communication transmitted by a mobile station; comparing a signal strength associated with the first communication with a first signal strength threshold; if the signal strength associated with the first communication is at least equal to the first signal strength threshold, then processing the first communication and sending an assignment message to the mobile station for establishing and assigning a main signaling link, the main signaling link comprising a stand alone dedicated control channel or a traffic channel, and then receiving a second communication transmitted by the mobile station via the main signaling link, the second communication identifying a service request type (SRT); decoding the second communication to determine the SRT and retrieving a second signal strength threshold; granting the SRT if a signal strength associated with the second communication is at least equal to a the second signal strength threshold selected from a set of second signal strength thresholds, each one of the set of second signal strength thresholds corresponding to an available SRT, the signal strength comprising an uplink signal strength or a downlink signal strength, and wherein if the signal strength is an uplink signal strength, measuring signal strength of the second communication and comparing the measured uplink signal strength to second signal strength threshold corresponding to the SRT, and if the signal strength is a downlink signal strength, extracting the downlink signal strength conveyed by the second communication and comparing the extracted downlink signal strength to the second strength threshold corresponding to the SRT.