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Ericsson, AT&T and MediaTek complete North America in-field trial of low-latency mobility feature
The Apex Times

THE APEX TIMES

Business/The Apex Times/Jul 7, 9:15 AM EDT

Ericsson, AT&T and MediaTek complete North America in-field trial of low-latency mobility feature

The companies say a 5G Advanced Mobility capability that triggers functions at the network’s lower protocol layers cut handover disruption during live testing on AT&T’s network.

By The Apex Times Newsroom2 min readAI-assisted Apex article

Ericsson, AT&T (NYSE: T) and MediaTek have completed what they describe as North America’s first in-field trial of Ericsson Low-Latency Mobility supporting Layer 1/Layer 2 Triggered Mobility (LTM) on AT&T’s network.

In a joint announcement distributed July 7, the companies said LTM is designed to reduce the interruption that can occur when a device switches cells, a step known as a handover. They claim the approach can reduce handover interruption time by up to 40 percent, compared with legacy Layer 3 mobility behavior, based on their testing results.

Ericsson said the feature shortened “data interruption during cell change” by up to 25 percent versus legacy Layer 3 mobility. The company added that the goal is to make handovers more reliable and resilient for wireless links, particularly for latency-sensitive applications that can be sensitive to delays or jitter.

The partners positioned the work for use cases that depend on smooth connectivity while moving, including extended reality (XR/VR), time-critical communications, immersive video conferencing and cloud applications. They also referenced latency-critical IoT-related services and “physical AI” as examples of workloads that can be affected by connection hiccups during mobility.

Ericsson’s mobility feature set was described as part of its “5G Advanced Critical IoT” subscription offering, a packaging approach that ties network capabilities to specific enterprise use cases. In this framing, the company said the lower interruption times can help support newer real-time applications and emerging use cases.

Beyond the near-term trial results, the companies said the completion of the in-field test sets a foundation for future generation AI-powered enhancements for mobility. Ericsson described a longer-term objective of achieving “zero latency and jitter” in highly mobile environments, although it did not provide a timeline or performance targets beyond the claims in the trial testing.

The companies did not disclose additional trial specifics in the announcement, such as the geographic locations, spectrum bands, device models, user speeds, or the exact trial duration. They also did not provide independent third-party validation, measurement methodology details, or whether the improvements were consistent across all scenarios tested.

Why It Matters

  • Mobility issues during handovers are a key constraint for real-time services, so a demonstrated reduction in interruption time can influence how carriers plan deployments for next-generation applications.
  • If Ericsson’s LTM approach reduces disruption more consistently than traditional handover behavior, it could support competitive differentiation for 5G Advanced offerings marketed to enterprises and developers.
  • The trial suggests momentum toward lower-layer (Layer 1/Layer 2) automation in mobility management, an engineering direction that could reshape how vendors and carriers implement features for latency-sensitive networks.
  • Because the companies did not provide broader deployment timelines or trial methodology detail, it remains unclear how quickly the capability could scale beyond pilots.

Sources

Key Facts

  • Ericsson, AT&T and MediaTek completed North America’s first in-field trial of Layer 1/Layer 2 Triggered Mobility (LTM) on AT&T’s network.
  • The companies said LTM is intended to reduce handover interruption time and improve reliability during cell changes.
  • Ericsson claims LTM can reduce handover interruption time by up to 40 percent versus legacy Layer 3 mobility behavior.
  • In testing, Ericsson said LTM reduced data interruption during cell change by up to 25 percent versus legacy Layer 3 mobility.
  • Ericsson described its Low-Latency Mobility feature set as part of its 5G Advanced Critical IoT subscription offering.
  • The partners connected the trial to latency-sensitive use cases such as XR/VR, immersive video conferencing, cloud applications and time-critical communications.

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