Handover in lte-a-heterogeneous network

An apparatus, comprising:

• at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause a network node controlling a macro cell of a cellular communication system to:
• configure at least one handover trigger related signaling configuration for at least one terminal device of the cellular communication system;
• receive as a result of said signalling configuration, an uplink message broadcasted by the at least one terminal device via a local area access node;
• recognize the local area access node as an edge node located on edge of a coverage area of the macro cell;
• and
• initiate a handover of the terminal device between the macro cell and a neighbouring macro cell.

An apparatus, comprising:

• at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause a terminal device to:
• obtain at least one handover trigger related signalling configuration for the terminal device to trigger at least one uplink broadcast transmission when the terminal device is in a coverage area of a local area access node operating on edge of a coverage area of the macro cell network node;
• and
• cause an uplink broadcast transmission from the terminal device to the network node via the local area access node according to the handover trigger related signalling configuration.