Signalling arrangement for inter-site carrier aggregation having only single component carrier available in uplink direction

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, wherein the at least one memory and the computer code are configured, with the at least one processor, to cause the apparatus at least to perform the following:
• configuring a transceiver to be connectable to a user equipment by a first downlink component carrier and by only a single component carrier for an uplink connection, and
• sharing the single component carrier for the uplink connection among a first uplink signaling for the apparatus and at least one second uplink signaling for at least one additional apparatus, wherein sharing among the first uplink signaling and the at least one second uplink signaling is performed in a time:
• divisional multiplexed manner.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus at least to:
• establish a sharing of only a single component carrier for an uplink connection of a user entity equipment, wherein the user equipment is connectable to a first network node by a first downlink component carrier and to at least one second network node by at least one second downlink component carrier and by the uplink connection, wherein the sharing is used to share the single component carrier for the uplink connection among a first uplink signaling to the first network node and at least one second uplink signaling to the at least one second network node, and wherein the sharing among the first uplink signaling and the at least one second uplink signaling is performed in a time-divisional multiplexed manner, and the at least one processor is configured to establish a pre-defined time division.