User equipment for communication over a wireless network; wherein the user equipment is configured for communicating with one or more wireless network nodes of the wireless network simultaneously over a first component carrier group comprising one or more primary component carriers and over a second component carrier group comprising one or more secondary component carriers; wherein the user equipment is configured for exchanging portions of signalling data over each of the primary component carriers and portions of user data over each of the primary component carriers and over each of the secondary component carriers with the one or more wireless network nodes; wherein the user equipment is configured for communicating with the one or more wireless network nodes of the wireless network using different operational modes (FOM, SOM, TOM); wherein the user equipment is configured for exchanging the portions of the signalling data exclusively over the primary component carriers in a first operational mode of the operational modes (FOM, SOM, TOM) in a first operational phase; characterized in that the user equipment is configured for exchanging the portion of the signalling data of a selected primary component carrier of the primary component carrier of the first component carrier group simultaneously over the selected primary component carrier and over a selected secondary component carrier of the secondary component carriers of the second component carrier group in a second operational mode of the operational modes (FOM, SOM, TOM) in a second operational phase subsequent to the first operational phase, wherein the second operational phase is initiated in case that a first trigger condition occurs; wherein the user equipment is configured for using the selected secondary component carrier from the second operational phase in a third operational mode of the operational modes (FOM, SOM, TOM) in a third operational phase subsequent to the second operational phase as one of the primary component carriers, so that the selected secondary component carrier from the second operational phase is added to the primary component carriers of the first component carrier group and removed from secondary component carriers of the second component carrier group in the third operational phase, wherein the third operational phase is initiated in case that a second trigger condition occurs. wherein the user equipment is configured for communicating with one or more wireless network nodes of the wireless network simultaneously over a first component carrier group comprising one or more primary component carriers and over a second component carrier group comprising one or more secondary component carriers; wherein the user equipment is configured for exchanging portions of signalling data over each of the primary component carriers and portions of user data over each of the primary component carriers and over each of the secondary component carriers with the one or more wireless network nodes; wherein the user equipment is configured for communicating with the one or more wireless network nodes of the wireless network using different operational modes (FOM, SOM, TOM); wherein the user equipment is configured for exchanging the portions of the signalling data exclusively over the primary component carriers in a first operational mode of the operational modes (FOM, SOM, TOM) in a first operational phase; characterized in that the user equipment is configured for exchanging the portion of the signalling data of a selected primary component carrier of the primary component carrier of the first component carrier group simultaneously over the selected primary component carrier and over a selected secondary component carrier of the secondary component carriers of the second component carrier group in a second operational mode of the operational modes (FOM, SOM, TOM) in a second operational phase subsequent to the first operational phase, wherein the second operational phase is initiated in case that a first trigger condition occurs; wherein the user equipment is configured for using the selected secondary component carrier from the second operational phase in a third operational mode of the operational modes (FOM, SOM, TOM) in a third operational phase subsequent to the second operational phase as one of the primary component carriers, so that the selected secondary component carrier from the second operational phase is added to the primary component carriers of the first component carrier group and removed from secondary component carriers of the second component carrier group in the third operational phase, wherein the third operational phase is initiated in case that a second trigger condition occurs.