US 11,723,025 B2
Radio PDCCH rate-matching for long term evolution cell-specific reference signals
Kazuki Takeda, Tokyo (JP); Alberto Rico Alvarino, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Jing Sun, San Diego, CA (US); and Mostafa Khoshnevisan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 27, 2021, as Appl. No. 17/332,003.
Prior Publication US 2022/0386342 A1, Dec. 1, 2022
Int. Cl. H04W 72/12 (2023.01); H04W 72/1273 (2023.01); H04L 5/00 (2006.01); H04W 72/0446 (2023.01); H04W 72/50 (2023.01)
CPC H04W 72/1273 (2013.01) [H04L 5/0051 (2013.01); H04W 72/0446 (2013.01); H04W 72/535 (2023.01)] 28 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a base station, comprising:
a memory; and
at least one processor coupled to the memory and configured to:
determine that demodulation reference signals (DMRS) of a first radio access technology (RAT) are configured to be mapped to a first set of resource elements (REs) in a first set of symbols of a control resource set (CORESET) that overlap at least partially in REs or symbols with cell-specific reference signals (CRS) of a second RAT that are configured to be mapped to a second set of REs in a second set of symbols, the first set of symbols and the second set of symbols overlapping at a third set of symbols;
map, based on the determination, the DMRS to the first set of REs in the first set of symbols excluding the third set of symbols; and
transmit the DMRS mapped to the CORESET.