US 11,876,657 B2
Method for peak to average power reduction of DM-RS signals
Mattias Frenne, Uppsala (SE); and Lars Lindbom, Karlstad (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/283,732
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 2, 2019, PCT No. PCT/SE2019/050951
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2020/076217, PCT Pub. Date Apr. 16, 2020.
Claims priority of provisional application 62/744,095, filed on Oct. 10, 2018.
Prior Publication US 2021/0328846 A1, Oct. 21, 2021
Int. Cl. H04L 27/26 (2006.01); H04W 72/04 (2023.01); H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01)
CPC H04L 27/2613 (2013.01) [H04L 27/2615 (2013.01); H04W 72/0466 (2013.01); H04W 72/23 (2023.01); H04L 5/0051 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method implemented by a user equipment (UE), the method comprising:
obtaining a first initialization value that is calculated based on:
one of a first and a second parameter; and
a scrambling code ID;
mapping the first initialization value to either a first Code Division Multiplexing (CDM) group or a second CDM group based on the scrambling code ID;
obtaining a second initialization value that is calculated based on:
the other of the first and second parameters; and
an inverse of the scrambling code ID; and
mapping the second initialization value to either the first CDM group or the second CDM group based on the scrambling code ID.