5G NAS – Registration Reject Cause

In 5G NR, Registration is a NAS layer or 5G Mobility Management (5GMM) process and it is very much similar to the Attach Process in LTE except some of the […]

Lawful Intercept (LI) in 5G System

For any Service Provider/Wireless Operator Lawful Interception (LI) is one of the must satisfy regulatory requirements and a legal obligation towards the Law Enforcement Agencies and Government Authorities. Lawful Intercept […]

5G NAS – Registration Request

5G NAS Registration Request is a 5GMM Procedure Initaiated by a UE. The network can resond as Registartion Accept in successful case or Registration Reject with specified cause value in […]

VoNR with Robust Header Compression (ROHC)

Voice Service in 5G SA, VoNR can use ROHC to compress the headers of voice packets. ROHC helps reduce header overheads of voice packets on radio links, which helps in […]

5G NR Downlink HARQ Codebook

In 5G NR, 3GPP specification has defined HARQ Codebook  to provide the feedback to base station for Downlink data transmission i.e., PDSCH Data. UE Sends the ACK/NACK for corresponding PDSCH […]