Communication processing system, communication processing method, base station, and control method and control program thereof

The communication processing method according to claim 4, further comprising:

• acquiring the at least one capability from the each of the plurality of relay stations;
• and
• storing the at least one capability and the each of the plurality of relay stations in association with each other.

The base station according to claim 4-10, wherein the at least one capability includes the number of communication terminals connectable to the each of the plurality of relay stations and a transmission bandwidth of the each of the plurality of relay stations.

The base station according to claim 10, wherein the at least one capability includes the number of communication terminals currently connected to the each of the plurality of relay stations and a load amount on the each of the plurality of relay stations.

The base station according to claim 10, wherein the at least one capability includes a remaining battery level of the each of the plurality of relay stations.

The base station according to claim 10, wherein the selector weights the at least one capability and combines the weighted capabilities, thereby selecting the relay station that connects the base station and the communication terminal.

The base station according to claim 10, wherein the communication terminal comprises a Remote UE in 3GPP TS 23.303 V14.1.0, the base station comprises an eNB, and the relay station comprises a ProSe UE-to-NW Relay, wherein the measurement of the received signal strength by the measurer is included in a Discovery Procedure.

The base station according to claim 10, wherein the communication terminal comprises an IoT device, an MTC device, and an M2M device.

A communication processing method of a communication processing system including a communication terminal, a base station, and a plurality of relay stations that relay communication between the communication terminal and the base station, comprising:

• measuring, in the communication terminal, a received strengths of signals received from the plurality of relay stations;
• and
• selecting, in the base station, a relay station that connects the base station and the communication terminal, based on a comparison result of at least one capability of capabilities had by each of the plurality of the relay stations, when there exist a plurality of relay stations whose strengths of received signals are more than a threshold.

(canceled)