US 11,991,033 B2
Systems and methods for phase noise tracking reference signal sequence generation using demodulation reference signals
Martin Hessler, Linköping (SE); Robert Baldemair, Solna (SE); Lars Lindbom, Karlstad (SE); Henrik Sahlin, Mölnlycke (SE); and Niclas Wiberg, Linköping (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
Filed on Apr. 10, 2023, as Appl. No. 18/132,493.
Application 18/132,493 is a continuation of application No. 17/725,168, filed on Apr. 20, 2022, granted, now 11,627,028.
Application 17/725,168 is a continuation of application No. 16/738,829, filed on Jan. 9, 2020, granted, now 11,316,638.
Application 16/738,829 is a continuation of application No. 16/076,038, granted, now 11,323,300, issued on Apr. 13, 2022, previously published as PCT/SE2017/050130, filed on Feb. 9, 2017.
Claims priority of provisional application 62/292,990, filed on Feb. 9, 2016.
Prior Publication US 2023/0246892 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04L 27/233 (2006.01)
CPC H04L 27/2613 (2013.01) [H04L 5/001 (2013.01); H04L 5/0051 (2013.01); H04L 27/2332 (2013.01); H04L 27/2607 (2013.01); H04L 27/2675 (2013.01); H04L 5/0007 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method by a user equipment in a network for transmitting a phase noise tracking reference signal, PNT-RS, together with a data transmission, the method comprising:
generating a value for PNT-RS in a second resource element of a subcarrier using a demodulation reference signal, DMRS, sequence of a first resource element in the subcarrier, wherein the DMRS is assigned to an orthogonal frequency division multiplexing, OFDM, symbol, and wherein the first resource element is the resource element intersecting the subcarrier for the PNT-RS and the OFDM symbol for the DMRS; and
transmitting the data transmission, the DMRS and the PNT-RS to the network, wherein the DMRS is generated using Orthogonal Cover Codes, OCC.