Uplink reference signal

A transmission reception point (TRP) for wireless communication, the TRP comprising:

• a memory storage comprising instructions;
• and
• one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to:
• receive a first uplink (UL) reference signal (RS) associated with a first UL RS sequence from a first user equipment (UE);
• and
• receive a second UL RS associated with a second UL RS sequence from a second UE, the first and second UL RS sequences being non-orthogonal.

A user equipment (UE) comprising:

• a memory storage comprising instructions;
• and
• one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to:
• determine an uplink (UL) reference signal (RS) sequence based on a UL RS sequence root, the UL RS sequence root being a UE-specific root and being independent of a cell identifier of a cell serving the UE;
• and
• send an UL RS associated with the UL RS sequence, the UL RS sequence being a Zadoff-Chu sequence.