This white paper explores how 5G’s software-defined radio (SDR) architecture enhances security by enabling flexible, rapid firmware updates and quick patches for protocol flaws without hardware replacement. This marks a shift from previous generations, which relied on fixed hardware and costly upgrades. The paper also traces the evolution of mobile networks, from 1G’s analog system to the digital 2G/3G, 4G’s software-defined networking, and 5G’s fully software-defined approach, improving security, device longevity, and reducing environmental impact.

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