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

Claim 0:
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.