US 12,335,952 B2
NR control channel element detections to reduce blind demodulation and decoding
Wanlun Zhao, San Diego, CA (US); and Parvathanathan Subrahmanya, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 2, 2022, as Appl. No. 17/879,601.
Claims priority of provisional application 63/229,782, filed on Aug. 5, 2021.
Prior Publication US 2023/0042362 A1, Feb. 9, 2023
Int. Cl. H04W 72/20 (2023.01); H04L 5/00 (2006.01); H04W 52/02 (2009.01)
CPC H04W 72/20 (2023.01) [H04L 5/0048 (2013.01); H04W 52/0225 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of monitoring for a control channel, the method comprising:
by a wireless communication device:
determining whether a control channel pilot signal is present within at least a first symbol of a first group of control channel elements (CCEs) of a control resource set,
wherein determining whether the control channel pilot signal is present within at least the first symbol of the first group of CCEs comprises:
determining a respective signal strength metric for each of a plurality of groups of CCEs of the control resource set;
determining a maximum group threshold (T2), representing a predetermined percentage of a greatest signal strength metric of the respective signal strength metrics; and
determining that the control channel pilot signal is not present within at least the first symbol of the first group of CCEs when the signal strength metric for at least the first symbol of the first group of CCEs does not meet T2;
at least partly in response to determining that the control channel pilot signal is present within at least the first symbol of the first group of CCEs, demodulating and decoding the at least the first symbol of the first group of CCEs; and
in response to determining that the control channel pilot signal is not present within at least the first symbol of the first group of CCEs, foregoing demodulation and decoding of the first group of CCEs.