US 9,814,075 B2
Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system
Soeng Hun Kim, Suwon-si (KR); Gert Jan Van Lieshout, Staines (GB); Sang Bum Kim, Suwon-si (KR); and Kyeong In Jeong, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 14/396,259
Filed by Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do (KR)
PCT Filed Apr. 26, 2013, PCT No. PCT/KR2013/003629
§ 371(c)(1), (2) Date Oct. 22, 2014,
PCT Pub. No. WO2013/168917, PCT Pub. Date Nov. 14, 2013.
Claims priority of provisional application 61/644,645, filed on May 9, 2012.
Claims priority of provisional application 61/653,026, filed on May 30, 2012.
Prior Publication US 2015/0078286 A1, Mar. 19, 2015
Int. Cl. H04W 74/08 (2009.01); H04B 7/26 (2006.01); H04L 1/18 (2006.01); H04W 48/00 (2009.01); H04L 5/00 (2006.01); H04W 16/18 (2009.01); H04W 28/18 (2009.01)
CPC H04W 74/0833 (2013.01) [H04B 7/26 (2013.01); H04L 1/18 (2013.01); H04L 5/001 (2013.01); H04W 16/18 (2013.01); H04W 48/00 (2013.01); H04L 5/0053 (2013.01); H04W 28/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication method by a terminal in a mobile communication system, the method comprising:
receiving, from a first base station, system information including a first random access response window for a first cell group associated with the first base station;
receiving, from the first base station, a configuration message for adding a second cell group associated with a second base station, the configuration message including information on a second random access response window size for the second cell group;
transmitting, on a cell of the second cell group, a random access preamble; and
monitoring, on the cell of the second cell group, a random access response based on the second random access response window size for the second cell group.