US 11,902,205 B2
Technique for configuring a phase tracking reference signal
Vicent Molés Cases, Nules (ES); and Mattias Frenne, Uppsala (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Nov. 14, 2022, as Appl. No. 17/986,486.
Application 17/986,486 is a continuation of application No. 16/983,368, filed on Aug. 3, 2020, granted, now 11,528,111.
Application 16/983,368 is a continuation of application No. 16/281,911, filed on Feb. 21, 2019, granted, now 10,805,052, issued on Oct. 13, 2020.
Application 16/281,911 is a continuation of application No. PCT/EP2018/081400, filed on Nov. 15, 2018.
Claims priority of provisional application 62/587,967, filed on Nov. 17, 2017.
Prior Publication US 2023/0103846 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 41/0803 (2022.01); H04W 72/0453 (2023.01)
CPC H04L 5/0051 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0094 (2013.01); H04L 41/0803 (2013.01); H04W 72/0453 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A radio access node comprising:
at least one processor and a memory, said memory comprising instructions executable by said at least one processor, whereby the radio access node is configured to:
transmit, to a user equipment, a configuration message for configuring a phase tracking reference signal (PT-RS) on a radio channel, wherein the radio channel comprises a plurality of subcarriers in a physical resource block (PRB), wherein a subset of the subcarriers in the PRB is allocated for reception of a demodulation reference signal (DM-RS) transmitted through a DM-RS port of the user equipment, wherein the configuration message comprises a bit field, wherein the bit field comprises n bits that are indicative of at least one subcarrier allocated for reception of the PT-RS transmitted through the DM-RS port among the subset of subcarriers allocated for reception of a DM-RS transmitted through the DM-RS port, and wherein a number of the plurality of subcarriers in the PRB is greater than 2n; and
receive, from the user equipment, the PT-RS on the at least one subcarrier that is allocated for reception of the PT-RS according to the bit field among the subset of subcarriers allocated for reception of the DM-RS transmitted through the DM-RS port.