
From HSUPA to 5G: The Evolution of Mobile Uplink Technology
A technical walkthrough of how mobile uplink architecture evolved from HSUPA's 3.5G packet access through LTE to modern 5G NR, and what that progression means for practitioners today.
Three technical pieces on HSUPA uplink architecture, 3G hardware ecosystems, and the standards that shaped modern cellular design.

A technical walkthrough of how mobile uplink architecture evolved from HSUPA's 3.5G packet access through LTE to modern 5G NR, and what that progression means for practitioners today.

A practitioner's reference on the HSUPA-era hardware ecosystem, USB dongles, ExpressCard modems, and mobile routers, and how those design decisions informed modern cellular modem architecture.

A technical comparison of HSUPA (uplink) and HSDPA (downlink) within the HSPA framework, covering channel design, scheduling, HARQ, and how these mechanisms influenced LTE and 5G NR architecture.