COMMUNICATION REPEATER AND COMMUNICATION SYSTEM
First Claim
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1. A communication repeater, comprising:
- a transmitting and receiving unit that transmits and receives a communication signal to/from a communication device and a base station with wireless communication;
a modem unit for modulating and demodulating the communication signal to a power line;
a power supply unit connected to a power line of a commercial power supply;
a power-line carrier communication unit that transmits and receives a communication signal superimposed on a carrier transmitted over the power line from/to the communication device; and
a control unit that controls wireless communication of the transmitting and receiving unit with the communication device and power-line carrier communication of the power-line carrier communication unit with the communication device.
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Abstract
A communication repeater comprises a transmitting and receiving that performs wireless communication with a communication device, a power-line carrier communication unit that performs power-line carrier communication with the communication device, and a control unit. The control unit selects either one of the wireless communication and the power-line carrier communication according to conditions.
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Citations
8 Claims
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1. A communication repeater, comprising:
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a transmitting and receiving unit that transmits and receives a communication signal to/from a communication device and a base station with wireless communication; a modem unit for modulating and demodulating the communication signal to a power line; a power supply unit connected to a power line of a commercial power supply; a power-line carrier communication unit that transmits and receives a communication signal superimposed on a carrier transmitted over the power line from/to the communication device; and a control unit that controls wireless communication of the transmitting and receiving unit with the communication device and power-line carrier communication of the power-line carrier communication unit with the communication device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication system for transmitting and receiving a communication signal between a base station and a mobile communication device, comprising:
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a communication repeater that transmits and receives the communication signal from/to the base station with wireless communication; and a power converter that transmits and receives the communication signal from/to the communication repeater with power-line carrier communication and transmits and receives the communication signal from/to the mobile communication device with power-line carrier communication. - View Dependent Claims (8)
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Specification