Configuring tracking reference signal resources

A user equipment (UE), comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the UE to:
• receive an indication of a high speed train (HST) single frequency network (SFN) transmission from at least one transmission and reception point (TRP) in a network;
• configure the UE with two tracking reference signal (TRS) resources;
• receive a downlink scheduling grant, wherein the downlink scheduling grant comprises a transmission configuration indicator (TCI) codepoint indicating two TCI states corresponding to the two TRS resources;
• configure the UE to report at least one Doppler indicator value to the network based on received TRSs;
• identify the at least one Doppler indicator value;
• report the at least one Doppler indicator value to the network;
• and
• receive at least one demodulation reference signal (“DMRS”) port corresponding to each layer of a physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), or a combination thereof, wherein DMRS symbols corresponding to the at least one DMRS port are received with a frequency offset corresponding to the at least one Doppler indicator value.

A base station, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the base station to:
• transmit an indication of a high speed train (HST) single frequency network (SFN) transmission from at least one transmission and reception point (TRP) in a network, wherein a user equipment (UE) is configured with two tracking reference signal (TRS) resources;
• transmit a downlink scheduling grant, wherein the downlink scheduling grant comprises a transmission configuration indicator (TCI) codepoint indicating two TCI states corresponding to the two TRS resources, wherein the UE is configured to report at least one Doppler indicator value to the network based on received TRSs, and the UE identifies the at least one Doppler indicator value;
• receive the at least one Doppler indicator value;
• and
• transmit at least one demodulation reference signal (“DMRS”) port corresponding to each layer of a physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), or a combination thereof, wherein DMRS symbols corresponding to the at least one DMRS port are received with a frequency offset corresponding to the at least one Doppler indicator value.

A processor for wireless communication, comprising:

• at least one controller coupled with at least one memory and configured to cause the processor to:
• receive an indication of a high speed train (HST) single frequency network (SFN) transmission from at least one transmission and reception point (TRP) in a network;
• configure the processor with two tracking reference signal (TRS) resources;
• receive a downlink scheduling grant, wherein the downlink scheduling grant comprises a transmission configuration indicator (TCI) codepoint indicating two TCI states corresponding to the two TRS resources;
• configure the processor to report at least one Doppler indicator value to the network based on received TRSs;
• identify the at least one Doppler indicator value;
• report the at least one Doppler indicator value to the network;
• and
• receive at least one demodulation reference signal (“DMRS”) port corresponding to each layer of a physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), or a combination thereof, wherein DMRS symbols corresponding to the at least one DMRS port are received with a frequency offset corresponding to the at least one Doppler indicator value.