3.Initial Access and Mobility / NR Physical Layer Specifications in 5G
A user equipmentʼs initial access in NR is per- formed according to a procedure that involves the steps of detecting a Synchronization Signal (SS), acquiring broadcast system information, and es-tablishing connection with the network by a ran- dom access procedure. 3.1 SS/PBCH Block As in LTE, the SS in NR consists of two signals: a Primary Synchronization Signal (PSS), and a Secondary Synchronization Signal (SSS). The SS together with the PBCH and the DeModulation Reference Signals for PBCH (DMRS for PBCH) forms an SS/PBCH block as shown in Figure 2.The base station...