US 11,671,298 B2
Reference signals and common search space for enhanced control channels
Aris Papasakellariou, Houston, TX (US); and Hyoung-Ju Ji, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jul. 26, 2021, as Appl. No. 17/385,279.
Application 17/385,279 is a continuation of application No. 16/678,641, filed on Nov. 8, 2019, granted, now 11,076,397.
Application 16/678,641 is a continuation of application No. 15/445,356, filed on Feb. 28, 2017, granted, now 10,477,529, issued on Nov. 12, 2019.
Application 15/445,356 is a continuation of application No. 13/886,673, filed on May 3, 2013, granted, now 9,585,125, issued on Feb. 28, 2017.
Claims priority of provisional application 61/642,174, filed on May 3, 2012.
Prior Publication US 2021/0352642 A1, Nov. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/04 (2023.01); H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 1/00 (2006.01); H04W 72/20 (2023.01); H04W 72/23 (2023.01); H04W 72/51 (2023.01)
CPC H04L 27/2613 (2013.01) [H04L 1/0046 (2013.01); H04L 1/0071 (2013.01); H04L 1/0072 (2013.01); H04L 5/005 (2013.01); H04L 5/0007 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 5/0053 (2013.01); H04L 25/0204 (2013.01); H04L 25/0232 (2013.01); H04W 72/20 (2023.01); H04W 72/23 (2023.01); H04L 5/0023 (2013.01); H04L 5/0094 (2013.01); H04W 72/51 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
receiving, from a transmission point, a broadcast signal;
determining a first set of physical resource blocks (PRBs) for a first physical downlink control channel (PDCCH) based on the broadcast signal;
determining a second set of PRBs for a second PDCCH based on a higher layer signaling;
receiving, from the transmission point, first downlink control information (DCI) on a first PDCCH in the first set of PRBs; and
receiving, from the transmission point, second DCI on a second PDCCH in the second set of PRBs,
wherein a cyclic redundancy check (CRC) of the first DCI is associated with a system information-radio network temporary identifier (SI-RNTI),
wherein a CRC of the second DCI is associated with a cell-RNTI (C-RNTI),
wherein a reference signal (RS) is determined based on an identity of the transmission point, in a case that the RS is received in the first set of PRBs, and
wherein the RS is determined based on the higher layer signaling, in a case that the RS is received in the second set of PRBs.