US 12,022,409 B2
Apparatus and method for performing a random access in a wireless communication system
Shichang Zhang, Beijing (CN); Bin Yu, Beijing (CN); and Chengjun Sun, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 14, 2022, as Appl. No. 17/694,556.
Application 17/694,556 is a continuation of application No. 16/947,287, filed on Jul. 27, 2020, granted, now 11,277,806.
Application 16/947,287 is a continuation of application No. 16/280,287, filed on Feb. 20, 2019, granted, now 10,728,864, issued on Jul. 28, 2020.
Application 16/280,287 is a continuation of application No. 16/211,783, filed on Dec. 6, 2018, granted, now 10,728,863, issued on Jul. 28, 2020.
Application 16/211,783 is a continuation of application No. 15/025,534, granted, now 10,531,409, issued on Jan. 7, 2020, previously published as PCT/KR2014/009081, filed on Sep. 29, 2014.
Claims priority of application No. 201310452017.6 (CN), filed on Sep. 27, 2013.
Prior Publication US 2022/0210752 A1, Jun. 30, 2022
Int. Cl. H04W 56/00 (2009.01); H04W 72/02 (2009.01)
CPC H04W 56/00 (2013.01) [H04W 72/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for communication by a base station in a wireless communication system, the method comprising:
transmitting configuration information related to an auxiliary uplink carrier of a cell, wherein a frequency band of a main uplink carrier of the cell is higher than a frequency band of the auxiliary uplink carrier of the cell; and
performing a random access procedure for the cell with a terminal,
wherein performing the random access procedure for the cell comprises:
performing the random access procedure for the cell using the auxiliary uplink carrier based on not explicitly signaling an uplink carrier among the main uplink carrier and the auxiliary uplink carrier to use for the random access procedure, the cell being configured with the auxiliary uplink carrier and a radio condition of the terminal for the cell related to path loss being less than a threshold; and
performing the random access procedure for the cell using the main uplink carrier based on the radio condition being not less than the threshold.