Patent ID: 7643830

Claim:
A method for triggering Universal Mobile Telecommunications Service (UMTS) to Global System for Mobile (GSM) radio access technology handover in a communication device, comprising: obtaining at least one UMTS handover measurement and at least one GSM handover measurement; applying a respective configurable function to each UMTS handover measurement to define a respective UMTS firing strength value between a first UMTS firing strength value and a second UMTS firing strength value; applying a respective configurable function to each GSM handover measurement to define a respective GSM firing strength value between a first GSM firing strength value and a second GSM firing strength value; determining a handover value using each UMTS firing strength value and each GSM firing strength value; comparing the handover value to a configurable handover threshold; and generating a handover signal if the handover value meets the configurable handover threshold.