Systems and methods for phase noise tracking reference signal sequence generation using demodulation reference signals

A method by a wireless transmitter 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 a wireless receiver.

A method by a network node 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 a user equipment.

A user equipment in a network for transmitting a phase noise tracking reference signal, PNT-RS, together with a data transmission, the user equipment comprising a transceiver, a memory, and a processor, the user equipment configured to:

• Generating a value for a PNT-RS sequence 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
• transmit the data transmission, the DMRS and the PNT-RS to the network.