AMF and gNB Interface Types in 5G NR

Technical overview of AMF and gNB in 5G NR, detailing N2/F1/X2 interfaces, AMF control-plane functions (mobility, session, security), and REG/RB resource mapping.

What Is Millimeter-Wave 5G and Its Frequency Bands

Technical overview of millimeter-wave 5G: 24-100 GHz bands, deployment trade-offs, propagation limits, dense base stations, beamforming and antenna arrays.

5G Low-Band vs High-Band and mmWave Frequency Ranges

5G millimeter-wave (mmWave) frequency overview (~24-100 GHz), common bands, and technical differences vs Sub-6 GHz in range, penetration, and capacity.

What air interface protocol stacks do 5G base stations support?

Technical overview of the 5G protocol stack and air-interface protocols, describing Layer 2 functions, interfaces and key protocols for base station implementations.

S7 Protocol Overview and PROFINET Differences

Technical comparison of Modbus TCP and Ethernet, differences between S7 and PROFINET, and an S7 protocol layer overview for industrial automation engineers.

5G Network Interfaces Overview

Technical overview of 5G network interfaces, covering radio and core protocols, NG-RAN/NG-Core interactions, key functions (AMF, SMF, UPF) and LDPC coding.

Cellular Mobile Communication and Network Architecture

Overview of cellular mobile communication architecture, covering base stations, BSC/MSC, frequency reuse, mobility, handover, and dynamic resource allocation.

Mobile Base Stations: Cells, Sectors, Carriers Explained

Technical overview of base stations, cells, sectors, and carriers: explains antenna sites, sector vs. cell distinctions, and how carrier and carrier frequency define logical cells.

3GPP Global 5G Spectrum Overview

Overview of 5G spectrum: FR1/FR2 band characteristics, spectrum refarming, licensing models, and dynamic spectrum sharing considerations for deployments.

How to Resolve LAN IP Address Shortages

Explains why 192.168.1.x can run out and practical solutions: adjusting subnet mask, adding routers, and using VLANs plus CIDR guidance for scaling LAN IP addresses.

3GPP NTN Frequency and Bandwidth Requirements

Technical summary of NTN frequency and bandwidth requirements in 3GPP Release 17, covering satellite bands (n255/n256), channel bandwidths, NRB/SCS and IoT NTN UE categories.

Waterproofing Base Station Interfaces

Practical RRU waterproofing guide for ANT ports detailing cold-shrink tubing and the 1+3+3 tape method, unused-port protection, and storage/maintenance recommendations.

Cellular Devices vs Wi-Fi: When Are They Necessary?

Compare cellular networks and WLAN (Wi-Fi): coverage, use cases, and benefits of cellular-enabled devices for mobile communication, Internet access, and emergencies.

Equipment Needed to Build a 5G Base Station

Overview of 5G base station equipment, components, and layered architecture covering antenna systems, RRU/BBU functions, transmission, power, and monitoring.

Applications of CDMA in Mobile Communication

Summary of CDMA applications and network traits in mobile communication, covering 3G/4G/5G, satellite systems, spectral efficiency, interference resistance and capacity.

Frequency Reuse and Multiple Access in CDMA Networks

Technical overview of CDMA and frequency reuse, describing how spreading codes enable simultaneous voice and data, plus capacity trade-offs and interference behavior.

Classic Mobile Operating Systems

Historical overview of mobile operating systems (1973–2007), detailing milestones from early PDAs and smartphones to Symbian's rise and market shifts.

Types of Fiber Access and Connection Methods

Overview of fiber patch cord types, fiber access topologies (FTTH, FTTB, FTTD), and connection methods (point-to-point, cross connection) for network deployments.

6G Core Network Architecture and Functions

Analyzes 6G core network requirements and proposes an information-centric, capability-inclusive core architecture that enables AI, computing, and flexible user-plane processing.

Key Mobile Communication Technologies and Applications

Overview of mobile communication key technologies and application scenarios, covering cellular network evolution (GSM/LTE/5G), multiple access, antennas and mobile internet