Rs (reference signal) sequence generation and mapping and precoder assignment for nr (new radio)

An apparatus configured to be employed in a NR (New Radio) wireless communication device, comprising:

• a memory interface;
• and
• processing circuitry configured to:
• generate one or more PN (Pseudo Noise) sequences based at least in part on an initial state of a PN generator;
• extract, for each PRB (Physical Resource Block) of one or more PRBs, an associated portion of an associated PN sequence of the one or more PN sequences, based at least in part on a reference subcarrier index, independent of a bandwidth part configuration and of a maximum supported number of PRBs;
• generate, for each PRB of the one or more PRBs, an associated set of RS (Reference Signals) for that PRB based at least in part on the extracted associated portion of the associated PN sequence for that PRB;
• and
• send the one or more PN sequences to a memory via the memory interface,
• wherein the NR wireless communication device is one of a gNB (next generation Node B) or a UE (User Equipment).

An apparatus configured to be employed in a UE (User Equipment), comprising:

• a memory interface;
• and
• processing circuitry configured to:
• determine one or more PRGs (Precoding Resource block Groups), wherein each PRG comprises one or more consecutive PRBs (Physical Resource Blocks), starting from a reference resource block;
• determine, for each PRG of the one or more PRGs, an associated precoder assignment for that PRG, wherein the associated precoder assignment of that PRG is associated with each PRB of the one or more consecutive PRBs of that PRG;
• and
• process a downlink data channel mapped to the one or more PRGs, based at least in part on the associated precoder assignment for each PRG of the one or more PRGs.

An apparatus configured to be employed in a NR (New Radio) wireless communication device, comprising:

• a memory interface;
• and
• processing circuitry configured to:
• generate one or more pseudo-random sequences based at least in part on one or more of a physical cell ID (Identifier), a virtual cell ID, a symbol index, a slot index, a frame index, a scrambling ID, or a UE (User Equipment) ID;
• map the one or more pseudo-random sequences to at least one DM (Demodulation)-RS (Reference Signal) symbol;
• and
• send the one or more pseudo-random sequences to a memory via the memory interface,
• wherein the NR wireless communication device is one of a gNB (next generation Node B) or a UE.