Bridging The Connectivity Gap: Unraveling The Complexities Of Wireless Standard Deployments


By Alejandro Escobar Calderon and John Ye In the fast-paced world of technological evolution, the deployment of wireless standards has been touted as the gateway to a connected future. The promise of lightning-fast wireless connectivity has been a driving force behind the relentless pursuit of cutting-edge standards such as 4G, 5G, and new network architectures like Open RAN (O-RAN). However... » read more

Timing Accuracy For eCPRI Fronthaul And Open RAN


Open RAN is an eCPRI-based open fronthaul interface between the radio unit (RU) and distributed unit (DU) [1]. This white paper discusses timing accuracy for eCPRI fronthaul transport networks. The eCPRI interface is supported by packet switched fronthaul transport networks. When the fronthaul network is used to synchronize an eCPRI node, it must provide timing at the user network interface acc... » read more

Chipmakers Model AI For Radio Access Networks


The chips that power and connect smartphones are now foundational to a disparate portfolio of daily tasks we take for granted, from accessing the internet to snapping a photo or asking Siri or Google if rain is in the forecast. Most people don’t think twice about the conflicting demands these tasks can place on semiconductors, but for engineers at leading chip manufacturers, this balancing ac... » read more

Week in Review: Design, Low Power


Acquisitions Renesas completed its acquisition of Reality Analytics, which specializes in embedded AI and TinyML solutions for advanced non-visual sensing in automotive, industrial and commercial products. Siemens Digital Industries Software will acquire Zona Technology, which develops aerospace simulation software. Siemens plans to integrate that software into its wXcelerator and Simcenter... » read more

Open RAN Phase 2


I first wrote about Open RAN in my post Fourth 4G Network Goes Live in Japan. Open RAN is a program driven by a group of European operators to build specifications for common architecture instead of getting "locked into" the closed architectures sold by the big base-station vendors such as Nokia, Samsung, and Ericsson. It is analogous to what servers went through over the last few decades, m... » read more

Increasing Performance With Data Acceleration


Increasing demand for functions that require a relatively high level of acceleration per unit of data is providing a foothold for in-line accelerator cards, which could mean new opportunities for some vendors and a potential threat for others. For years, either CPUs, or CPUs with FPGA accelerators, met most market needs. But the rapid increase in the volume of data everywhere, coupled with t... » read more

Open RAN Direct RF Sampling Radio Transceiver Architectures For Massive MIMO


With the exponential increase in wireless traffic, mobile networks are transformed into more software-driven, virtualized, flexible, intelligent, and energy efficient systems. These trends have stimulated significant change in the core network with the advent of software defined networks (SDN) and network functions virtualization (NFV), which have enabled building more agile and less expensive ... » read more

Domain-Specific Design Drives EDA Changes


The chip design ecosystem is beginning to pivot toward domain-specific architectures, setting off a scramble among tools vendors to simplify and optimize existing tools and methodologies. The move reflects a sharp slowdown in Moore's Law scaling as the best approach for improving performance and reducing power. In its place, chipmakers — which now includes systems companies — are pushing... » read more

Week In Review: Auto, Security, Pervasive Computing


Security Synopsys’ Cybersecurity Research Center disclosed that its research resulted in three Common Vulnerability and Exposures (CVE) advisories on wireless router chipsets that have partial authentication bypass vulnerabilities. The vulnerability lets an attacker send an unencrypted data frame through a WPA2-protected WLAN, which will may respond with an encrypted data frame that the atta... » read more

Week In Review: Auto, Security, Pervasive Computing


Pervasive computing — data center, edge, IoT, 5G Qualcomm settled its 5G licensing disagreement with Huawei, which will pay $1.8 billion in back royalties and will pay for licensing going forward. Huawei is also now the world’s largest supplier of smartphones, surpassing Samsung Electronics Co. Qualcomm also announced a super-fast charging platform this week for Android devices that is sup... » read more