LTE Protocol Stack

LTE Protocol stack is divided into Three Layers. Layer 1 (Physical Layer) Layer 2 (PDCP,MAC,RLC Layers) Layer 3 (NAS and RRC Layers) Functions of each Layer. NAS: 3GPP TS 24.301 EPS bearer management Authentication Paging origination EPC connection management-IDLE mobility… Read More ›


5G NR-(MIB/SIB) System information System Information (SI) is consisting of 2 parts- MIB (Master Information Block) SIBs (System Information Block) In NR there are two version of SIBs . One being transmitted periodically same as LTE Other one is transmitted… Read More ›


Radio Resource Control (RRC) states for NR There are Three RRC states in NR RRC IDLE RRC CONNECTED RRC INACTIVE Note :UE in RRC IDLE cannot┬ámove to RRC INACTIVE RRC IDLE To complete cell selection and cell reselection ,the SI… Read More ›