User equipment for communicating over wireless network and wireless network node for connecting user equipment to wireless network

The present invention relates to a user equipment for communicating over a wireless network; wherein the user equipment is configured to exchange, in a first operating phase, only a portion of the signaling data over the primary component carrier in a first of the operating modes; wherein the user equipment is configured, in a second operating phase following the first operating phase, to simultaneously exchange the selected primary component carrier by the selected primary component carrier of the primary component carrier of the first component carrier group and by the selected secondary component carrier of the secondary component carrier of the second component carrier group in a second one of the operating modes a portion of signaling data of the component carrier, wherein a second operating phase is initiated in the event of a first trigger condition; wherein the user equipment is configured, in a third operating phase following the second operating phase, to use the selected secondary component carrier