Method and user equipment of uplink power control
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Mar 6, 2013
filing date -
Mar 26, 2012
priority date (Note) -
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Abstract
Disclosed are a method and user equipment of uplink power control. The method comprises the steps of: UE determines the target transmission power of uplink signal which transmitted on each synchronization uplink component carrier of current uplink sub-frame; Judging whether PRACH transmission exists on uplink secondary component carrier of current uplink sub-frame; If judged that there is, determining the PRACH target transmission power, and further judging that whether the sum of the uplink signal power and the PRACH target transmission power exceeds the maximum transmission power of UE; If judged exceeded, holding the PRACH target transmission power constant, and reducing the target transmission power of all or part of SC-FDMA symbol of uplink signal which is contained in current uplink sub-frame and needed to reduce power. The technical scheme of present invention is using for uplink power control when PRACH signal is overlap with other uplink signal.
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