FIELD: wireless communication.
SUBSTANCE: invention can be used to transmit phase noise reference signal (PNRS). Method associated with transmitting a phase noise reference signal (PNRS) includes receiving, using a wireless transmit/receive unit (WTRU), scheduling information for transmitting a physical uplink shared channel (PUSCH), wherein scheduling information includes an indication of a set of physical resource blocks (PRB) and a modulation and coding scheme (MCS) level, determining density for PNRS transmission based on at least one of: the MCS level, frequency bands for PUSCH transmission or subcarrier diversity during PUSCH transmission, and PUSCH transmission in a scheduled PRB set using a defined PNRS density. Uplink transmission PNRS allows the base station to track phase for phase noise correction for wireless transmission/reception module.
EFFECT: technical result is higher quality of service.
20 cl, 2 tbl, 27 dwg
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