Base station and wireless communication system
First Claim
1. A base station which serves for terminal position detection using radio signals, comprising:
- an antenna to transmit and receive a radio signal;
a radio signal receiver which generates a received signal from said radio signal received;
a signal processing unit which processes said received signal and generates a transmit signal;
a radio signal transmitter which generates a radio signal from said transmit signal;
a control unit which exerts control of the base station operation; and
a signal processing unit for position detection which performs signal processing for terminal position detection,wherein a signal receivable range with which a signal can be received by said radio signal receiver is made longer than a signal transmission range with which a signal is transmitted by said radio signal transmitter.
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Accused Products
Abstract
The present invention reduces the number of base stations required to carry out terminal position detection. A base station which serves for terminal position detection using radio signals comprises an antenna to transmit and receive a radio signal; a radio signal receiver which generates a received signal from the radio signal received; a signal processing unit which processes the received signal and generates a transmit signal; a radio signal transmitter which generates a radio signal from the transmit signal; a control unit which exerts control of the base station operation; and a signal processing unit for position detection which performs signal processing for terminal position detection. A signal receivable range with which a signal can be received by the radio signal receiver is made longer than a signal transmission range with which a signal is transmitted by the radio signal transmitter.
8 Citations
12 Claims
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1. A base station which serves for terminal position detection using radio signals, comprising:
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an antenna to transmit and receive a radio signal; a radio signal receiver which generates a received signal from said radio signal received; a signal processing unit which processes said received signal and generates a transmit signal; a radio signal transmitter which generates a radio signal from said transmit signal; a control unit which exerts control of the base station operation; and a signal processing unit for position detection which performs signal processing for terminal position detection, wherein a signal receivable range with which a signal can be received by said radio signal receiver is made longer than a signal transmission range with which a signal is transmitted by said radio signal transmitter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless communication system where base stations receive a radio signal that is transmitted by a terminal in a process for detecting the position of said terminal,
at least one of said base stations comprising an antenna to transmit and receive a radio signal; - a radio signal receiver which generates a received signal from said radio signal received;
a signal processing unit which processes said received signal and generates a transmit signal;
a radio signal transmitter which generates a radio signal from said transmit signal;
a control unit which exerts control of the base station operation; and
a signal processing unit for position detection which performs signal processing for terminal position detection, wherein a signal receivable range with which a signal can be received by said radio signal receiver is made longer than a signal transmission range with which a signal is transmitted by said radio signal transmitter. - View Dependent Claims (8, 9, 10, 11, 12)
- a radio signal receiver which generates a received signal from said radio signal received;
Specification