US 11,924,773 B2
Apparatus and method for controlling uplink transmission power in a multiple element carrier wave system
Ki Bum Kwon, Seoul (KR); Myung Cheul Jung, Seoul (KR); and Jae Hyun Ahn, Seoul (KR)
Assigned to PANTECH CORPORATION, Seoul (KR)
Filed by PANTECH CORPORATION, Seoul (KR)
Filed on Mar. 10, 2023, as Appl. No. 18/120,121.
Application 18/120,121 is a continuation of application No. 17/195,593, filed on Mar. 8, 2021, granted, now 11,606,757.
Application 17/195,593 is a continuation of application No. 16/826,054, filed on Mar. 20, 2020, granted, now 10,945,217, issued on Mar. 9, 2021.
Application 16/826,054 is a continuation of application No. 16/293,321, filed on Mar. 5, 2019, granted, now 10,609,650, issued on Mar. 31, 2020.
Application 16/293,321 is a continuation of application No. 16/028,609, filed on Jul. 6, 2018, abandoned.
Application 16/028,609 is a continuation of application No. 15/653,355, filed on Jul. 18, 2017, granted, now 10,045,304, issued on Aug. 7, 2018.
Application 15/653,355 is a continuation of application No. 15/077,466, filed on Mar. 22, 2016, granted, now 9,713,095, issued on Jul. 18, 2017.
Application 15/077,466 is a continuation of application No. 14/357,557, granted, now 9,313,743, issued on Apr. 12, 2016, previously published as PCT/KR2012/009177, filed on Nov. 2, 2012.
Claims priority of application No. 10-2011-0119154 (KR), filed on Nov. 15, 2011.
Prior Publication US 2023/0209471 A1, Jun. 29, 2023
Int. Cl. H04W 52/14 (2009.01); H04L 5/00 (2006.01); H04W 52/28 (2009.01); H04W 52/34 (2009.01); H04W 52/36 (2009.01); H04W 52/40 (2009.01); H04W 52/50 (2009.01); H04W 72/1268 (2023.01); H04W 74/08 (2009.01); H04W 52/24 (2009.01); H04W 74/00 (2009.01)
CPC H04W 52/146 (2013.01) [H04L 5/001 (2013.01); H04W 52/281 (2013.01); H04W 52/40 (2013.01); H04W 52/50 (2013.01); H04W 72/1268 (2013.01); H04W 74/0833 (2013.01); H04W 52/241 (2013.01); H04W 52/34 (2013.01); H04W 52/365 (2013.01); H04W 74/006 (2013.01); Y02D 30/70 (2020.08)] 10 Claims
OG exemplary drawing
 
1. A method for controlling uplink transmission power by a user terminal in a multiple component carrier system, comprising:
calculating a first transmission power determined for transmission of a sounding reference signal (SRS) on a first serving cell;
calculating a second transmission power determined for transmission of a physical random access channel (PRACH) on a second serving cell;
calculating a power headroom based on both the first transmission power and the second transmission power; and
transmitting, to a base station, the PRACH on the second serving cell without transmitting the SRS on the first serving cell, if the power headroom is less than a threshold power.