ALLPCB
What Components Make Up a 5G Base Station?
Analysis of 5G base station cost breakdown in China: component-level estimates for BBU/AAU, power/auxiliaries and civil works, with a ~450,000 yuan total estimate.
Network Switch Chips: Functions and Common Vendors
Technical overview of network switch chips, covering packet forwarding, hardware acceleration, QoS, differences from PHY chips, and common vendors like Broadcom and Marvell.
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 Frequencies Do 5G Millimeter Waves Use
Overview of millimeter-wave 5G frequencies, common bands (24/28/37/39/47 GHz), regional allocations, bandwidth and antenna design impacts on performance.
Qualcomm's Five Key Technologies in 5G Advanced Release 18
Summary of Qualcomm's Release 18 contributions to 5G Advanced: uplink and broadband enhancements, IoT extensions, efficient system design, and wireless AI foundations.
5G RF Power Amplifier Architectures Explained
Technical overview of power amplifier design and PA architectures: load?line and efficiency principles, combining methods (current/voltage/power), push?pull, balanced, Doherty.
5G RedCap: Power-Saving Tech and Testing
Explore 5G RedCap's power-saving tech for IoT, including DRX, eDRX, and testing solutions for energy efficiency.
How to Configure a Switch IP Address
Guide to configure a switch IP address via CLI: enter privileged mode, set interface ip address and mask, activate interface, save config, and verify IPv4/IPv6 validity.
Flexible Wearable Textile Sensors
Comprehensive review of fabrication methods and sensing mechanisms for textile-based strain sensors (1D fibers/yarns and 2D fabrics), with resistive models.
What Is a TMR Sensor? Output Compared with GMR and AMR
Technical overview of TMR sensors and quantum sensors, covering tunneling magnetoresistance, sensitivity and SWAP-C tradeoffs, and applications in navigation, automotive, and IoT.