Wireless relay device, wireless relay method, and wireless communication system
AssigneeFujitsu Limited
InventorsKotaro Shiizaki, Masafumi Tsutsui, Kazuo Kawabata
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Abstract
A wireless relay device that transmits a reception signal from a transmission device to a reception device includes a determination section configured to determine whether or not the reception signal is a retransmission signal retransmitted from the transmission device, and an amplification section configured to amplify the reception signal when the determination section determines that the reception signal is the retransmission signal, and not to amplify the reception signal when the determination section determines that the reception signal is not the retransmission signal.
Claims14
A wireless relay device comprising:
- a processor configured to determine whether or not a reception signal transmitted from a transmission device is a retransmission signal retransmitted from the transmission device;
- and
- an amplifier configured to amplify the reception signal for transmitting to a reception device according to the determination of the reception signal, wherein
- the processor performs the determination based on retransmission control information transmitted from the reception device, and
- the retransmission control information indicates one of ACK (Acknowledgement), DTX (Discontinuous Transmission), and NACK (Negative Acknowledgement), based upon which the processor determines whether or not the reception signal transmitted from the transmission device is a retransmission signal.
A wireless relay method performed in a wireless relay device, the wireless relay method comprising:
- determining whether or not a reception signal transmitted from a transmission device is a retransmission signal retransmitted from the transmission device;
- and
- amplifying the reception signal for transmitting to a reception device according to the determining of the reception signal, wherein
- the determining is based on retransmission control information transmitted from the reception device. and
- the retransmission control information indicates one of ACK (Acknowledgement), DTX (Discontinuous Transmission), and NACK (Negative Acknowledgement), based upon which it is determined whether or not the reception signal transmitted from the transmission device is a retransmission signal.
A wireless communication system comprising:
- a transmission device;
- a wireless relay device;
- and
- a reception device;
- wherein
- the transmission device includes a transmitter configured to transmit a transmission signal;
- the wireless relay device includes
- a processor configured to receive the transmission signal transmitted from the transmission device and determine whether or not the transmission signal is a retransmission signal retransmitted from the transmission device, and
- an amplifier configured to amplify the transmission signal for transmitting to the reception device according to the determination of the transmission signal;
- and
- the reception device includes a receiver configured to receive the amplified transmission signal, wherein
- the processor performs the determination based on retransmission control information transmitted from the reception device, and
- the retransmission control information indicates one of ACK (Acknowledgement), DTX (Discontinuous Transmission), and NACK (Negative Acknowledgement), based upon which the processor determines whether or not the reception signal transmitted from the transmission device is a retransmission signal.
Dependencies are inferred from the claim text.