In an NR Carrier Bandwidth, multiple SSB can be transmitted in different frequency locations and the PCIs of the SSB do not have to be unique i.e. different SSBs in the frequency domain can have different PCIs. However, When an SSB is associated with an RMSI (i.e initial bandwidth), the SSB corresponds to an individual cell, which has a unique NCGI. Such an SSB is referred to as a Cell-Defining SSB (CD-SSB).