BIDIRECTIONAL WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, AND BIDIRECTIONAL WIRELESS COMMUNICATION METHOD
First Claim
1. A wireless communication apparatus for bidirectional wireless communication, comprising:
- a reception section configured to receive a wireless transmission signal and produce therefrom a reception signal;
a first oscillator configured to produce a signal having a frequency upon which reception processing is based, where the reception signal is injected into the first oscillator;
a frequency locking detection unit configured to detect whether the frequency of the signal of the first oscillator is frequency locked with a carrier frequency of the reception signal,wherein, if the frequency locking detection unit detects that oscillation frequency of the signal of the first oscillator is frequency-locked with the carrier frequency of the reception signal, the second wireless communication apparatus transmits a communication enable signal.
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Accused Products
Abstract
A bidirectional wireless communication system includes: a first wireless communication apparatus for bidirectional communication configured to multiplex a modulated signal obtained by modulating an input signal by a reference carrier signal having a predetermined carrier frequency, and transmit a resultant transmission signal; and a second wireless communication apparatus, having an oscillator configured to oscillate a signal having a free-running oscillation frequency, configured to inject a reception signal received from the first wireless communication apparatus into the oscillator, receive the reception signal while variably controlling the free-running oscillation frequency of the oscillator of the second wireless communication apparatus, detect whether the free-running oscillation frequency of the signal of the oscillator of the second wireless communication apparatus has entered the frequency range up to the injection locking to be frequency-locked with a carrier frequency of the injected reception signal, and generate a communication enable signal.
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Citations
19 Claims
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1. A wireless communication apparatus for bidirectional wireless communication, comprising:
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a reception section configured to receive a wireless transmission signal and produce therefrom a reception signal; a first oscillator configured to produce a signal having a frequency upon which reception processing is based, where the reception signal is injected into the first oscillator; a frequency locking detection unit configured to detect whether the frequency of the signal of the first oscillator is frequency locked with a carrier frequency of the reception signal, wherein, if the frequency locking detection unit detects that oscillation frequency of the signal of the first oscillator is frequency-locked with the carrier frequency of the reception signal, the second wireless communication apparatus transmits a communication enable signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless communication apparatus, comprising:
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reception means for receiving a wireless transmission signal and producing therefrom a reception signal; first oscillation means for producing a signal having a frequency upon which reception processing is based, where the reception signal is injected into the first oscillation means; and frequency locking detection means for detecting whether the frequency of the signal of the first oscillation means is frequency locked with a carrier frequency of the reception signal, wherein, if the frequency locking detection means detects that the frequency of the signal of the first oscillation means is frequency-locked with the carrier frequency of the reception signal, the wireless communication apparatus transmits a communication enable signal. - View Dependent Claims (15)
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16. A method of bidirectional wireless communication via a wireless communication apparatus comprising:
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prior to beginning communication of data via the wireless communication apparatus, performing an injection locking control process comprising; wirelessly receiving a transmission signal and generating therefrom a reception signal, injecting the reception signal into a first oscillator whose frequency is used for reception processing, determining whether the frequency of the first oscillator is frequency locked with a carrier frequency of the reception signal, and if the frequency of the signal of the first oscillator is frequency-locked with the carrier frequency of the reception signal, transmitting a communication enable signal; and beginning communication of data via the wireless communication apparatus only after the enable signal has been transmitted. - View Dependent Claims (17)
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18. A non-transitory computer readable medium having program code stored thereon, the program code being executable by a processor to cause the processor to issue commands to control bidirectional wireless communication of a wireless communication apparatus such that:
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prior to beginning communication of data, the wireless communication apparatus performs an injection locking control process comprising; wirelessly receiving a transmission signal and generating therefrom a reception signal, injecting the reception signal into a first oscillator whose frequency is used for reception processing, determining whether the frequency of the first oscillator is frequency locked with a carrier frequency of the reception signal, and if the frequency of the signal of the first oscillator is frequency-locked with the carrier frequency of the reception signal, transmitting a communication enable signal; and the wireless communication apparatus begins communication of data only after the enable signal has been transmitted. - View Dependent Claims (19)
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Specification