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
Introduction This article will cover the following topics: * NR Slot Format – Introduction * 4G Vs 5G TDD Subframe/Slot format: * NR Slot Format Types Deep dive: Fixed, Semi-Static & Dynamic TDD * Cross Link Interference definition and relation with NR Slot Allocation * 4G/NR coexistence * NR Slot Format Planning and design impact
4G/5G – DL/UL Inter-Cell Interference Randomization Brief Description and expected benefits: * When the Cell Load is low; the g-NB.(Scheduler) staggers the resources allocated to adjacent cells as far away from each other as possible in multi-cell networking scenarios. * Usually the resources allocation will be staggered based on the
Introduction: * UE battery life is an important aspect of the user's experience, which will influence the adoption of 5G NR handsets and/or services. It is critical to study UE power consumption to ensure that UE power efficiency for 5G NR UEs can be better than that of
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This video addresses a common limitation in Power BI, where redundant measures were required to calculate the Delta% for Pre/Post date values of specific metrics or KPIs. In this video, we’ll show you how to streamline this process using Calculation Groups. Here's what you'll
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Learn about 5G DMRS for PBCH (1) What is the primary function of DMRS for PBCH? * The UE uses DMRS to estimate the propagation channel experience by the PBCH. The resultant information is used to demodulate the PBCH and subsequently decode the Master Information Block. (2) How and where is
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What are 4G S-TMSI and 5G S-TMSI? * 4G S-TMSI, and is part of GUTI, it is used to identify a UE within a specific MME Pool. * 5G S-TMSI can be used to identify a UE within a specific AMF Region. How can you trace and check them? * In 4G: It
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💡 What is it? PDSCH Multiplexing simply means leveraging the free resources within the PDSCH DMRS Symbol for optimal PDSCH utilization. 📈Expected Gain: Experience an increase in the maximum user throughput for users in good radio conditions. 🚫 Expected Drawbacks: There's always a tradeoff. Be mindful of the impact on
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5G NSA Training Session 8 about DL Transmit Power Design in 5G, is now on YouTube. In this video, we’ll cover key concepts, including: * What are EIRP and EPRE? * How to calculate Cell Reference Power in 5G. * How to analyze power configurations using UE logs. * The impact of SSB
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The Channel State information (CSI) Reference Signal is a multi-purpose DL Transmission. The Base Station can configure the UE to use the CSI-RS for one or more of the following: 1- CSI Reporting As seen in the below figure, the g-NB initially will send the related configuration and transmit CSI
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Even though I don’t often use Excel for KPIs monitoring or reporting, the need for quick KPIs checks and reports still arises. In such cases, Excel is still needed, especially when some automation can speed up the process and improve efficiency. In this video, I'll show you
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* The 4G/5G Globally Unique Temporary Identifier (GUTI) is a temporary identity used by the network to enhance privacy. The MME assigns it in 4G or AMF in 5G, and the allocated GUTI can be changed at any time by MME/AMF. * 4G GUTI has three components. Where: * PLMN identity
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5G CSI-RS has 3 Types: 1- Non-Zero Power CS RS is used for two main purposes - For Channel Measurement CSI reporting, Beam Management, RLF, Beam Recovery, and Mobility. - For Interference Measurement, “Intra-Cell Interference” is mainly used to measure intra-Cell interference generated by Users during Multi-User MIMO 2- CSI