Patent ID: 8233923
Filing Date: 2012-07-31
Classification: H04W,Y02D

Abstract:
1. A method for reducing signalling loads from a mobile device to a mobile telecommunications network system comprising a first radio access technology having a first radio access network and a first network core operable to page a mobile device via at least one element of the first radio access technology and a second radio access technology having a second radio access network and a second network core operable to page a mobile device via at least one element of the second radio access technology due to intersystem changes, wherein at the time when an idle or inactive state signalling reduction is activated at the mobile device and the respective network the mobile device stores at least one priori EPS bearer context and/or at least one priori PDP context which stored at least one priori EPS bearer context and/or at least one priori PDP context is usable by the mobile device for supporting mobile services, characterized in that after the activation of the idle or inactive state signalling reduction at least one posterior EPS bearer context and/or at least one posterior PDP context is activated between the mobile device and the respective network, which at least one posterior EPS bearer context and/or at least one posterior PDP context is used by the mobile device for supporting mobile services, and wherein the idle or inactive state signalling reduction keeps activated, when no posterior EPS bearer context or posterior PDP context exists at the time when an intersystem change from the first network to the second network or from the second network to the first network happens.