SSB and PRACH Transmissions During Initial Access in Wireless Communications

A processor of a user equipment (UE) configured to perform operations comprising:

• receiving a random access response (RAR) transmission with a first numerology μ_1 in a physical random access channel (PRACH) transmission window;
• decoding the RAR transmission by calculating a random access radio network temporary identifier (RA-RNTI) based on the first numerology μ_1 and a second numerology μ_2, wherein the second numerology μ_2 is a reference numerology.

A processor of a base station configured to perform operations comprising:

• determining a random access response (RAR) transmission, wherein a cyclic redundancy check (CRC) of the RAR is scrambled by a random access radio network temporary identifier (RA-RNTI) calculated based on a first numerology μ_1 of a physical random access channel (PRACH) transmission and a second numerology μ_2, wherein the second numerology μ_2 is a reference numerology;
• and
• transmitting the RAR to a user equipment (UE).