Methods and apparatus for using a phase tracking reference signal with a single carrier waveform

An apparatus comprising:

• a processor;
• and
• a computer-readable media having stored thereon computer executable instructions that when executed cause the apparatus to:
• receive configuration information;
• multiplex a phase tracking reference signal (PT-RS) with a data signal based on the configuration information to obtain a multiplexed signal by multiplexing L PT-RS symbols and S-L auxiliary PT-RS symbols with M-S data symbols thereby obtaining the multiplexed signal including a stream of M symbols, wherein M, L and S are integer values;
• generate a single carrier orthogonal quadrature amplitude modulation (SC-OQAM) signal based on the stream of M symbols;
• and
• transmit the SC-OQAM signal.

A method comprising:

• receiving a single carrier orthogonal quadrature amplitude modulation (SC-OQAM) signal generated from a multiplexed signal,
• wherein the multiplexed signal has been obtained by multiplexing a phase tracking reference signal (PT-RS) and a data signal;
• and
• estimating phase errors based on the SC-OQAM signal,
• wherein the received SC-OQAM signal comprises a plurality of SC-OQAM symbols, the SC-OQAM symbols comprising:
• L PT-RS symbols, S-L auxiliary PT-RS symbols and M-S data symbols multiplexed together that are all real valued symbols or all imaginary valued symbols.

An apparatus comprising:

• a processor;
• and
• a computer-readable media having stored thereon computer executable instructions, that when executed cause the apparatus to:
• receive a single carrier orthogonal quadrature amplitude modulation (SC-OQAM) signal generated from a multiplexed signal, wherein the multiplexed signal has been obtained by multiplexing a phase tracking reference signal (PT-RS) and a data signal;
• and
• estimate phase errors based on the received SC-OQAM signal,
• wherein the received SC-OQAM signal comprises a plurality of SC-OQAM symbols, the SC-OQAM symbols comprising:
• L PT-RS symbols, S-L auxiliary PT-RS symbols and M-S data symbols multiplexed together that are all real valued symbols or all imaginary valued symbols.