Reference signal and Tx/Rx precoding for UE multiplexing in NR SS

An apparatus configured for wireless communication, comprising:

• means for receiving, by a User Equipment (UE) from a base station, a reference signal configuration message, wherein the reference signal configuration message comprises a transmission sequence identifier identifying a multiplexing for one or more antenna ports assigned for transmission of one or more uplink reference signals by a plurality of UEs, and wherein the multiplexing is one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over an identified subframe;
• means for receiving, by the UE from the base station, a virtual cell identifier (ID) different from a physical cell identifier;
• configuring, by the UE, an uplink reference signal of the one or more uplink reference signals, wherein a number of OFDM symbols for carrying the uplink reference signal is configured based on the reference signal configuration message;
• and
• means for transmitting, by the UE to the base station, the uplink reference signal in the identified subframe, wherein the uplink reference signal is identified by the base station according to the virtual cell ID.

A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

• program code executable by a computer for causing the computer to receive, by a User Equipment (UE) from a base station, a reference signal configuration message, wherein the reference signal configuration message comprises a transmission sequence identifier identifying a multiplexing for one or more antenna ports assigned for transmission of one or more uplink reference signals by a plurality of UEs, and wherein the multiplexing is one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over an identified subframe;
• program code executable by the computer for causing the computer to receive, by the UE from the base station, a virtual cell identifier (ID) different from a physical cell identifier;
• program code executable by the computer for causing the computer to configure, by the UE, an uplink reference signal of the one or more uplink reference signals, wherein a number of OFDM symbols for carrying the uplink reference signal is configured based on the reference signal configuration message;
• and
• program code executable by the computer for causing the computer to transmit, by the UE to the base station, the uplink reference signal in the identified subframe, wherein the uplink reference signal is identified by the base station according to the virtual cell ID.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor,
• wherein the at least one processor is configured to:
• receive, by a User Equipment (UE) from a base station, a reference signal configuration message, wherein the reference signal configuration message comprises a transmission sequence identifier identifying a multiplexing for one or more antenna ports assigned for transmission of one or more uplink reference signals by a plurality of UEs, and wherein the multiplexing is one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over an identified subframe;
• receive, by the UE from the base station, a virtual cell identifier (ID) different from a physical cell identifier;
• configure, by the UE, an uplink reference signal of the one or more uplink reference signals, wherein a number of OFDM symbols for carrying the uplink reference signal is configured based on the reference signal configuration message;
• and
• transmit, by the UE to the base station, the uplink reference signal in the identified subframe, wherein the uplink reference signal is identified by the base station according to the virtual cell ID.