1. An apparatus of a user equipment (UE), the apparatus comprising: processing circuitry, wherein to configure the UE for demodulation reference signal (DMRS) processing in a New Radio (NR) network, the processing circuitry is to: decode higher layer signaling, the higher layer signaling to indicate whether transform precoding is enabled and to indicate a modulation scheme for a physical uplink shared channel (PUSCH) if transform precoding is enabled; generate a set of low Peak-to-Average-Power-Ratio (PAPR) base sequences of length-6; generate a reference signal sequence as a demodulation reference signal (DMRS) using the set of low-PAPR base sequences, based on the modulation scheme if transform precoding is enabled by the higher layer signaling, the modulation scheme being a p/2-binary phase-shift keying (BPSK) modulation scheme; and perform mapping of the DMRS to physical resources for transmission using the PUSCH; and memory coupled to the processing circuitry and configured to store the DMRS. , Description:TECHNICAL FIELD [0003] Aspects pertain to wireless communications. Some aspects relate to wireless networks including 3GPP (Third Generation Partnership Project) networks, 3GPP LTE (Long Term Evolution) networks, 3GPP LTE-A (LTE Advanced) networks, and fifth-generation (5G) networks including 5G new radio (NR) (or 5G-NR) networks, 5G-LTE networks, and 5G NR unlicensed spectrum (NR-U) networks. Other aspects are directed to techniques for low uplink peak-to-average-power-ratio (PAPR) demodulation reference signal (DMRS) sequence design, including using length-6 sequences for uplink low-PAPR DMRS sequence design.

Claims:1. An apparatus of a user equipment (UE), the apparatus comprising:
processing circuitry, wherein to configure the UE for demodulation reference signal (DMRS) processing in a New Radio (NR) network, the processing circuitry is to:
decode higher layer signaling, the higher layer signaling to indicate whether transform precoding is enabled and to indicate a modulation scheme for a physical uplink shared channel (PUSCH) if transform precoding is enabled;
generate a set of low Peak-to-Average-Power-Ratio (PAPR) base sequences of length-6;
generate a reference signal sequence as a demodulation reference signal (DMRS) using the set of low-PAPR base sequences, based on the modulation scheme if transform precoding is enabled by the higher layer signaling, the modulation scheme being a p/2-binary phase-shift keying (BPSK) modulation scheme; and
perform mapping of the DMRS to physical resources for transmission using the PUSCH; and
memory coupled to the processing circuitry and configured to store the DMRS.
, Description:TECHNICAL FIELD
[0003] Aspects pertain to wireless communications. Some aspects relate to wireless networks including 3GPP (Third Generation Partnership Project) networks, 3GPP LTE (Long Term Evolution) networks, 3GPP LTE-A (LTE Advanced) networks, and fifth-generation (5G) networks including 5G new radio (NR) (or 5G-NR) networks, 5G-LTE networks, and 5G NR unlicensed spectrum (NR-U) networks. Other aspects are directed to techniques for low uplink peak-to-average-power-ratio (PAPR) demodulation reference signal (DMRS) sequence design, including using length-6 sequences for uplink low-PAPR DMRS sequence design.