A METHOD FOR GLOBAL POSITIONING SYSTEM (GPS) BASED NETWORK SELECTION DURING SERVICE ORIGINATION IN MULTI-RADIO ACCESS TECHNOLOGY (RAT) ENVIRONMENT

摘要

The present invention, in general, relates to wireless communication, cellular communication and GPS. More particularly, this invention relates to a criterion for GPS based network selection during service origination in Multi -RAT deployment scenario. The invention explains a method for GPS based network selection during service origination in multi- RAT environment comprising the steps of: searching for system as per system selection table and camping on preferred system by MS when MS is powered ON; getting all overhead messages from the network and registering with the network by MS; doing inter-RAT measurements in idle state to look for preferred system as per system selection table by MS; camping on to the preferred system autonomously by MS when MS finds the said preferred system; sending a coverage profile message to the network where MS is currently camped on if MS originates a call; checking all the available RATs at the current location by the network; sending message to MS indicating the availability of all the RATS at current location by the network; selecting and tuning to a new preferred RAT and start getting service from the said RAT by MS; and servicing the said MS with the requested service by the network.