Telecommunications apparatuses and methods

A base station for use in a mobile telecommunications system and for using a relay node as a terminal-to-terminal relay for a device-to-device (D2D) communication between a first terminal and a second terminal, the base station comprising:

• a transceiver;
• and
• control circuitry configured to:
• receive, from the relay node and via the transceiver, a resource pool allocation request;
• identify a resource pool for the relay node to allocate resources for terminal-to-terminal relaying;
• and
• notify, via the transceiver, the relay node that the identified resource pool has been allocated to the relay node to allocate resources for terminal-to-terminal relaying.

A method of operating a relay node for allocating resources in a mobile telecommunications system, the resources being for a relay node to operate as a terminal-to-terminal relay for a device-to-device (D2D) communication between a first terminal and a second terminal, the method comprising the relay node:

• identifying a resource pool for terminal-to-terminal relaying;
• allocating first resources from the resource pool for the first terminal to communicate via the relay node for the D2D communication;
• allocating second resources from the resource pool for the second terminal to communicate via the relay node for the D2D communication;
• and
• transmitting one or more grant messages notifying the first and second terminals of the allocated first and second resources.