•The trial reduced data interruption during cell handovers by up to 25% on AT&T's commercial 5G network
•Handover optimisation gains traction as 5G Advanced shifts focus from speed to service quality
The fact
Ericsson, AT&T and MediaTek completed North America's first field trial of Ericsson's Low-Latency Mobility technology on AT&T's commercial 5G network. The feature reduces service interruption as devices move between radio cells.
The trial cut data interruption during handovers by up to 25% compared with legacy Layer 3 mobility, the companies said. Ericsson said the technology targets applications requiring uninterrupted connectivity while in motion.
The assessment
The trial shifts attention from headline 5G metrics — speed and coverage — to connection quality during routine mobility. Handover performance matters for real-world experience: users notice dropped packets during cell transitions more than they notice peak throughput. For BTW readers, this is worth tracking because Low-Latency Mobility is a software-layer improvement that does not require new spectrum or hardware, making it easier to deploy at scale across existing RAN infrastructure. It signals how operators are extracting incremental performance gains from live networks rather than waiting for the next generation.
What to watch
Watch for chipset support from MediaTek and Qualcomm, and whether other US operators run similar trials. Commercial timelines will show whether handover optimisation becomes a standard 5G Advanced feature or remains a niche network enhancement.