METHOD OF OPERATING A COMMUNICATION DEVICE OPERABLE IN AN ACTIVE MODE AND IN AN IDLE MODE, A COMPUTER PROGRAM PRODUCT FOR EXECUTING THE METHOD, AND THE COMMUNICATION DEVICE OPERABLE IN AN ACTIVE MODE AND IN AN IDLE MODE

摘要

A method of operating a communication device comprises providing the communication device (T, T1-T5) with a first interface (I1) to connect to a first network (N1), which provides a first bandwidth and a first network idle power consumption at the communication device (T, T1-T5), when being connected to the first network (N1) and providing the communication device (T, T1-T5) with a second interface (I2) to connect to a second wireless network (N2), which provides a second bandwidth, which is smaller than the first bandwidth, and a second network idle power consumption, which is smaller than the first idle power consumption, at the communication device (T, T1-T5), when being connected to the second wireless network (N2). The method further comprises, when in an active mode (51) of the communication device (T, T1-T5) an established physical layer and an established data link layer of the first network (N1) are required for data transmission, establishing by a controller unit (C) a first communication link (1a) between the communication device (T, T1-T5) and the first network (N1) over the first interface (I1), and, when in an idle mode (41) of the communication device (T, T1-T5) the established physical layer and the established data link layer of the first network (N1) are dispensable for data transmission, disconnecting by the controller unit (C) the first communication link (1a) and establishing a second communication link (2) between the communication device (T, T1-T5) and the second wireless network (N2) over the second interface (I2).