Patent ID: 8743775
Filing Date: 2014-06-03
Classification: H04W

Abstract:
1. A method for handling inter-radio access technology measurement reports in a radio telecommunications device, the device being operable with a first cellular radio access technology, GSM EDGE Radio Access Network (GERAN) and Generic Access Network (GAN), the radio telecommunications device being capable of adopting a cellular preferred mode, the method comprising, in the radio telecommunications device: when the radio telecommunications device is in cellular preferred mode and operating with the first cellular radio access technology and the radio telecommunications device is registered with a Generic Access Network Controller that operates as a GERAN network component, and a quality of a signal from the first cellular radio access technology is below a certain threshold in which the quality of a signal from the first cellular radio access technology comprises at least one of signal strength, non-error rate, and signal to noise ratio, and a quality of a signal from the GAN is above a certain threshold and responsive to a request, that has been received, to send an inter-radio access technology (RAT) measurement report: wherein the measurement report in respect of the GERAN cell(s) and the measurement report in respect of the generic access network are transmitted as separate reports separated by a delay of no more than 10 seconds, the measurement report in respect of the GERAN cell(s) being transmitted before the measurement report in respect of the generic access network; and wherein the measurement report in respect of the generic access network is transmitted after a delay relative to the transmitting of the measurement report in respect of the GERAN cell(s), wherein the delay is in one of the following ranges: between 50 ms to 5000 ms; 800 to 4000 ms; 2000 to 3000 ms.