US 11,855,732 B2
Method for improving transmission and reception performance of LTE MTC downlink control channel and apparatus therefor
Jaehyung Kim, Seoul (KR); Seonwook Kim, Seoul (KR); Changhwan Park, Seoul (KR); Seokmin Shin, Seoul (KR); Joonkui Ahn, Seoul (KR); Suckchel Yang, Seoul (KR); and Seunggye Hwang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Feb. 7, 2023, as Appl. No. 18/106,675.
Application 18/106,675 is a continuation of application No. 17/266,047, granted, now 11,621,760, previously published as PCT/KR2019/010154, filed on Aug. 9, 2019.
Claims priority of provisional application 62/716,970, filed on Aug. 9, 2018.
Claims priority of application No. 10-2018-0116637 (KR), filed on Sep. 28, 2018; application No. 10-2018-0133983 (KR), filed on Nov. 2, 2018; and application No. 10-2019-0018253 (KR), filed on Feb. 15, 2019.
Prior Publication US 2023/0188191 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04W 4/70 (2018.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04W 72/23 (2023.01)
CPC H04B 7/0639 (2013.01) [H04B 7/0626 (2013.01); H04L 5/0048 (2013.01); H04L 25/0224 (2013.01); H04L 27/261 (2013.01); H04W 4/70 (2018.02); H04W 72/23 (2023.01)] 7 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a network, configuration information including a relation between a demodulation reference signal (DMRS) port and a cell specific reference signal (CRS) port, wherein the relation is based on a specific precoder matrix of at least one precoder matrix included in a codebook defined for a transmission on the CRS port; and
receiving, from the network, the DMRS and control information through a Machine Type Communication (MTC) Physical Downlink Control Channel (MPDCCH) based on the configuration information,
wherein the configuration information includes a predefined mapping, or a channel state information (CSI)-based mapping,
wherein the predefined mapping is configured as a default value, and
wherein, based on the configuration information including the CSI-based mapping, the predefined mapping is applied for a common search space.