Patent ID: 11902205
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method performed by a user equipment, the comprising:
receiving, from a radio access node, a configuration message for configuring a phase tracking reference signal (PT-RS) on a radio channel that comprises a plurality of subcarriers in a physical resource block (PRB), wherein the configuration message comprises a bit field, wherein the bit field is indicative of at least one subcarrier allocated for transmission of the PT-RS through a demodulation reference signal (DM-RS) port among a subset of subcarriers allocated for transmission of the DM-RS through the DM-RS port, wherein the subset of subcarriers allocated for transmission of the DM-RS through the DM-RS port includes fewer subcarriers than a number of subcarriers in the PRB; and
transmit, to the radio access node, the PT-RS on the at least one subcarrier that is allocated for transmission of the PT-RS according to the configuration message from among the subset of subcarriers allocated for transmission of the DM-RS for the DM-RS port.