US 10,560,931 B2
Method and apparatus for enhanced control channel-based operation in wireless communication system
Hanbyul Seo, Anyang-si (KR); Hakseong Kim, Anyang-si (KR); Kijun Kim, Anyang-si (KR); Dongyoun Seo, Anyang-si (KR); and Inkwon Seo, Anyang-si (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Aug. 28, 2018, as Appl. No. 16/115,113.
Application 16/115,113 is a continuation of application No. 15/387,374, filed on Dec. 21, 2016, granted, now 10,085,251.
Application 15/387,374 is a continuation of application No. 14/593,765, filed on Jan. 9, 2015, granted, now 9,723,606, issued on Aug. 1, 2017.
Application 14/593,765 is a continuation of application No. 14/370,204, granted, now 9,345,013, issued on May 17, 2016, previously published as PCT/KR2013/000428, filed on Jan. 18, 2013.
Claims priority of provisional application 61/588,142, filed on Jan. 18, 2012.
Claims priority of provisional application 61/591,276, filed on Jan. 27, 2012.
Claims priority of provisional application 61/598,311, filed on Feb. 13, 2012.
Claims priority of provisional application 61/614,478, filed on Mar. 22, 2012.
Claims priority of provisional application 61/644,409, filed on May 8, 2012.
Claims priority of provisional application 61/706,789, filed on Sep. 28, 2012.
Claims priority of provisional application 61/721,507, filed on Nov. 2, 2012.
Prior Publication US 2019/0014566 A1, Jan. 10, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/04 (2009.01); H04L 5/00 (2006.01); H04L 1/16 (2006.01); H04L 1/18 (2006.01)
CPC H04W 72/042 (2013.01) [H04L 1/16 (2013.01); H04L 1/1861 (2013.01); H04L 5/0023 (2013.01); H04L 5/0048 (2013.01); H04L 5/0055 (2013.01); H04L 5/0092 (2013.01); H04W 72/0406 (2013.01); H04W 72/0413 (2013.01); H04L 5/0053 (2013.01)] 6 Claims
OG exemplary drawing
 
3. A method of receiving an Enhanced Physical Downlink Control Channel, EPDCCH, by a user equipment (UE) in a wireless communication system, the method comprising:
determining one antenna port used for the EPDCCH; and
demodulating the EPDCCH based on a reference signal for the one antenna port, and
wherein an index of the one antenna port is determined based on a value n′ satisfying the following equation,
n′=(nECCE mod d)+(X mod min(L,d)),
wherein,
nECCE is a lowest enhanced control channel element (ECCE) index used for transmission of the EPDCCH;
d is a number of ECCEs per resource block pair;
X is an identifier of the UE;
L is a number of ECCEs used for the EPDCCH;
mod is modulo function; and
min (L,d) is a minimum value of L and d.