In this video we’ll take a quick look at how VoLTE and IMS work together. First, we’ll go over the high-level architecture of VoLTE and IMS, showing the main network components involved in delivering voice over LTE. Then, we’ll briefly explain the end-to-end call flow in IMS—
Welcome to Session 4 of the 5G Massive MIMO Training Series. The following is covered in this video: * Introduction/Contents * PDSCH Beamforming based on SRS * SRS Antenna switching * Tacking UE SRS Limited Power: SRS Frequency Hopping * SRS Capacity improvement solution
What is Ultra-Lean-Design * Ultra-lean is one of the three design principles of 5G New Radio which significantly improves network energy efficiency and reduces interference in high traffic load conditions. But how does it achieve these objectives? * The so called always-on signals design in the 4G network, where the reference signal
Session 3 of the 5G Massive MIMO Training Series is Now on YouTube! In this session, we take a deep dive into Downlink (DL) Beam Management, a key aspect of Massive MIMO that plays a crucial role in enhancing 5G network performance. What You’ll Learn in This Video: * Introduction
What is SSB? 5G Synchronization Signal Block (SSB) plays a crucial role in cell search and mobility. It consists of: * PSS (Primary Synchronization Signal) * SSS (Secondary Synchronization Signal) * PBCH (Physical Broadcast Channel) SSB occupies 20 Resource Blocks (RBs) and 4 Symbols in the frequency domain. How Does UE Detect SSB
What is the SRS Transmission Comb type? * An SRS Transmission can occupy up to 272 RBs in the frequency domain, but an individual UE does not transmit the SRS on every subcarrier but selects specific subcarriers based on transmission comb type. * 5G supports two types of transmission Comb(2 &
Everything you need to know about 5G HARQ. This video covers the following key topics: * HARQ Feedback Loop- Typical Pipeline * HARQ Retransmission- Soft Combining Overview * HARQ Retransmission- Chase Combining * HARQ Retransmission- Incremental redundancy * HARQ Process Stop-AND-Wait * HARQ Retransmission- Code Block Group based * Timing of Uplink HARQ Acknowledgments * Multiplexing of HARQ
Prepare for your next interview with this quick and clear breakdown of important 5G RAN features/parameters. (Video added below) Content: Key 4G/5G Uplink (UL) Features & Enhancements * 4G/5G UL 256QAM – Higher-order modulation for increased uplink capacity and throughput. * PUSCH Waveform Adaptation – Optimizing uplink signal waveform for better
Session 3 of the E2E User Plane and RAN Protocol series is now uploaded. This video provides a detailed look at the E2E User Plane and RAN protocols, focusing on TCP and its interaction with PDCP, the TCP handshake process, and various retransmission mechanisms. Topics Covered: * User Plane Data TCP/
This video takes a deep dive into radio protocol, we’ll explore the interplay between TCP/PDCP and PDCP related timers in details .
This video takes a deep dive into radio protocols, simulating the data flow between the UE and gNodeB while breaking down key timers and parameters such as t-Reordering and T-PollRetransmit . Additionally, we’ll explore the interplay between TCP/PDCP and RLC/MAC retransmission-related timers. This video covers the following topics:
Introduction: In general, power design in NR is simpler than in 4G. In NR, a cell's power is shared across multiple channels, and the allocation of power to each channel plays a crucial role in determining the cell's coverage performance. This article discusses the key aspects