Relay network and entity for continuous transmission based on superposition coding

A relay network structure, comprising:

• a base station;
• a relay;
• a direct-transmission terminal to directly communication with the base station;
• and
• a relay-supported terminal to transmit a signal to the base station via the relay and receive a signal from the base station via the relay, wherein the relay relays at least one of a relay-supported terminal signal transmitted from the base station to the relay-supported terminal, the relay-supported terminal signal transmitted from the base station and the direct-transmission terminal signal to the relay-supported terminal and to the direct-transmission terminal, a signal transmitted from the relay-supported terminal to the base station, and a signal received from the direct-transmission terminal to the base station, and the relay applies superposition coding in the base station-relay link without additional resource allocation, and is set to continuously transmit the signal without time division and with or without applying superposition coding in the relay-terminal link, wherein during uplink communication the base station combines a signal received from the direct-transmission terminal and a direct-transmission terminal signal received from the relay.

A base station, comprising:

• a transmitter;
• and
• a resource management unit to allocate a resource to a base station-terminal link based on superposition coding transmission, and to allocate the resource to a relay-terminal link based on the superposition coding transmission, wherein the base station continuously transmits a signal based on superposition coding without time division and additional resource allocation in the base station-relay link and the relay-terminal link, the resource management unit managing a superposition coding transmission of a direct-transmission terminal signal and at least one relay-supported terminal signal in the base station-relay link, and continuously transmitting the signal based on superposition coding without time division and additional resource allocation in the base station-relay link and the relay-terminal link, the resource management unit further managing a portion of or an entire relay transmission of the direct-transmission terminal signal and at least one relay-supported user terminal signal in the relay-terminal link, the relay transmission including the portion of or the entire superposition coding transmission of the direct-transmission terminal signal and the at least one relay-supported terminal signal, and continuously transmits the signal based on superposition coding without time division and additional resource allocation in the base station-relay link and the relay-terminal link.