Terminal apparatus, relay device, control method, and storage medium in wireless communication system in which relay device is used as extended antenna of terminal apparatus

A relay device in a wireless communication system including a terminal apparatus, a base station apparatus to which the terminal apparatus is connected, and the relay device that is configured to convert a signal of a first frequency transmitted by the terminal apparatus to a second frequency, amplify the resulting signal, and relay the amplified signal to the base station apparatus, and convert a signal of the second frequency transmitted by the base station apparatus to the first frequency, amplify the resulting signal, and relay the amplified signal to the terminal apparatus, the relay device comprising:

• a relay unit configured to perform frequency conversion and amplification of a received signal and relay the resulting signal without performing demodulation and decoding;
• and
• a communication unit configured to communicate with the terminal apparatus, the communication unit being different from the relay unit,
• wherein the communication unit notifies the terminal apparatus of capability information relating to the relay unit of the relay device.

A control method executed by a relay device in a wireless communication system,

• wherein the communication system includes a terminal apparatus, a base station apparatus to which the terminal apparatus is connected, and the relay device that is configured to convert a signal of a first frequency transmitted by the terminal apparatus to a second frequency, amplify the resulting signal, and relay the amplified signal to the base station apparatus, and convert a signal of the second frequency transmitted by the base station apparatus to the first frequency, amplify the resulting signal, and relay the amplified signal to the terminal apparatus,
• wherein the relay device comprises a relay unit configured to perform frequency conversion and amplification of a received signal and relay the resulting signal without performing demodulation and decoding;
• and a communication unit configured to communicate with the terminal apparatus, the communication unit being different from the relay unit,
• wherein the control method comprises notifying the terminal apparatus of capability information relating to the relay unit of the relay device.

A non-transitory computer-readable storage medium that stores a program for causing a computer included in a relay device in a wireless communication system to execute a control method,

• wherein the communication system includes a terminal apparatus, a base station apparatus to which the terminal apparatus is connected, and the relay device that is configured to convert a signal of a first frequency transmitted by the terminal apparatus to a second frequency, amplify the resulting signal, and relay the amplified signal to the base station apparatus, and convert a signal of the second frequency transmitted by the base station apparatus to the first frequency, amplify the resulting signal, and relay the amplified signal to the terminal apparatus,
• wherein the relay device comprises a relay unit configured to perform frequency conversion and amplification of a received signal and relay the resulting signal without performing demodulation and decoding;
• and a communication unit configured to communicate with the terminal apparatus, the communication unit being different from the relay unit,
• wherein the control method comprises notifying the terminal apparatus of capability information relating to the relay unit of the relay device.