Radio communication method, local area base station apparatus, mobile terminal apparatus and radio communication system
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United States of America Patent
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Jul 21, 2020
Grant Date -
Jan 25, 2018
app pub date -
Sep 29, 2017
filing date -
Apr 6, 2012
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Abstract
A radio communication method is provided in which a local area base station apparatus, arranged in a wide area where a first carrier frequency is used and forming a local area that is narrower than the wide area, transmits a downlink signal, using a second carrier frequency, which belongs to a different frequency band from the first carrier frequency and which has a wider bandwidth than the first carrier frequency, the local area base station apparatus transmits a detection signal that is used to detect the local area base station apparatus in the mobile terminal apparatus, and the local area base station apparatus transmits the downlink signal for the mobile terminal apparatus with transmission power that is determined based on the path loss of the detection signal received in the mobile terminal apparatus.
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