Relay device for relaying communication between base station device and terminal device by forming a beam, control method, and computer-readable storage medium

A control method executed by a relay device that relays communication between a base station device and a terminal device, the control method comprising:

• relaying a predetermined signal transmitted by the base station device through a predetermined beam by outputting the predetermined signal in a plurality of radio wave output directions without decoding user data;
• and
• selecting an output direction, among the plurality of radio wave output directions, in which to output a radio wave in signal transmission between the terminal device and the relay device, based on a timing at which a second predetermined signal is received from the terminal device,
• wherein in the relaying of the predetermined signal,
• the predetermined signal transmitted through the predetermined beam in a first time slot is relayed in a first direction among the plurality of radio wave output directions, and
• the predetermined signal transmitted through the predetermined beam in a second time slot is relayed in a second direction among the plurality of radio wave output directions.

A non-transitory computer-readable storage medium storing a program that causes a computer, which is included in a relay device that relays communication between a base station device and a terminal device, to:

• relay a predetermined signal transmitted by the base station device through a predetermined beam by outputting the predetermined signal in a plurality of radio wave output directions without decoding user data;
• and
• select an output direction, among the plurality of radio wave output directions, in which to output a radio wave in signal transmission between the terminal device and the relay device, based on a timing at which a second predetermined signal is received from the terminal device,
• wherein in the relay,
• the predetermined signal transmitted through the predetermined beam in a first time slot is relayed in a first direction among the plurality of radio wave output directions, and
• the predetermined signal transmitted through the predetermined beam in a second time slot is relayed in a second direction among the plurality of radio wave output directions.