Signal transmission method and device
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United States of America Patent
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Mar 21, 2017
Grant Date -
May 26, 2016
app pub date -
Feb 2, 2016
filing date -
Aug 2, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a signal transmission method and device. The device includes: a transmitting device, configured to transmit a first signal to an opposite terminal; and a receiving device, configured to receive a second signal transmitted by the opposite terminal, where a frequency of the first signal is different from a frequency of the second signal, and the frequency of the first signal and/or the frequency of the second signal are/is in a frequency band of visible light. The present invention resolves a problem in a related technology that poor reliability of uplink and downlink signal transmission is caused when signals of a same frequency are used for uplink and downlink transmission, and provides a beneficial effect of improving reliability of uplink and downlink signal transmission.
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