US Patent No. 10,560,931

METHOD AND APPARATUS FOR ENHANCED CONTROL CHANNEL-BASED OPERATION IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,560,931
Issue Date February 11, 2020
Title Method And Apparatus For Enhanced Control Channel-based Operation In Wireless Communication System
Inventorship Hanbyul Seo, Anyang-si (KR)
Hakseong Kim, Anyang-si (KR)
Kijun Kim, Anyang-si (KR)
Dongyoun Seo, Anyang-si (KR)
Inkwon Seo, Anyang-si (KR)
Assignee LG ELECTRONICS INC., Seoul (KR)

Claim of US Patent No. 10,560,931

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.