Cloud RAN Orchestration and Management
The Orchestration and management for Cloud RAN (cRAN) is consist of a suite of Orchestration and OSS systems, including AI/ML...
Category: NR
5G NR Layer 2 – Radio Link Control (RLC) Overview
5G RLC overall functionality is almost same as LTE RLC. In 5G also, RLC has 3 different modes of operations...
3GPP Evolution for MIMO
Released 3GPP standards on MIMO are shown in below image. As you know, Coordinated Multipoint (CoMP) is a type of Cooperative...
5G NR – Msg2 Random Access Response (RAR) – SA Mode
In 5G NR, the initial access include down-link synchronisation and up-link synchronisation procedures. Downlink synchronisation can be achieved after decoding...
5G NR RA-RNTI Calculation
A 5G UE picks a random preamble for RACH procedure to get the uplink synchronisation. The preamble is referenced with...
5G NR System Information Type#3 – SIB 3
In 5G NR, SIB3 contains neighboring cell related information relevant for intra-frequency cell re-selections only. It includes cells with specific...
5G NR Measurement Gap Configuration
A Mobile device has to measure the neighboring cells signal and other carrier components. Having a single RF module to...
5G NR Inactive-RNTI (I-RNTI) for RRC_INACTIVE State
In 5G NR, 3GPP specification has introduced an RRC state as RRC_INACTIVE state. The aim of RRC_INACTIVE state is to...
5G NR Antenna Port – Logical and Physical Antenna Mapping
Downlink multi-antenna transmission is a key technology of 5G NR. Signals transmitted from different antennas ports will experience different “radio...
Motivation Behind Having Multiple Numerology in 5G NR
Talking about numerology, as we know LTE has single subcarrier spacing equal to 15khz, but here in NR, we have...