Verizon and Ericsson said they completed the first pre-standard 6G field call in the 7GHz range, moving their joint testing out of the laboratory and onto a commercial network site for the first time.

The call took place at a Verizon commercial site in Concord, California. Engineers used an Ericsson 6G proof-of-concept kit to test upper mid-band frequencies outdoors and to measure how those signals penetrate a building. The companies verified an outdoor call and are now testing how 6G signals travel from open-air environments into indoor spaces.

The claim is a vendor-operator assertion, not a standards milestone. No 6G standard exists yet, and the trial equipment is pre-commercial. What the test demonstrates is propagation behavior in a band the industry considers central to future 6G deployments — not a product ready for networks.

How was the test built?

The setup had two parts. A base station was installed on a site shelter. User equipment sat inside a 12-by-8-foot mobile enclosure positioned away from that shelter, capable of supporting stationary outdoor and indoor radio configurations.

The mobile unit carried custom power backups and varied glass and wall material configurations. That hardware lets engineers measure how a pre-standard 6G stack running over a 400MHz carrier handles:

• line-of-sight and non-line-of-sight paths;
• foliage and physical obstacles;
• building entry loss.

The work measures coverage, throughput, latency, stability and feature performance under real-world conditions rather than controlled lab conditions. Building entry loss is the critical variable: upper mid-band spectrum above 7GHz propagates less far and penetrates structures less readily than the mid-band spectrum carrying most 5G traffic today, so field data on indoor coverage directly informs whether the band is commercially usable.

What does this change for 6G standards?

In the near term, not much — and that is the point. The trial is an input to a process, not an output of one. 3GPP has not finalized 6G specifications, and regulators are still working through spectrum identification for the upper mid-band range. Field measurements from operators and vendors feed into those debates.

Verizon CTO and SVP of technology development Yago Tenorio said Ericsson plays a key role in the operator's 6G Innovation Forum and its efforts to turn 6G research into practical deployments. He added that the outdoor trial would provide technical insights to help shape global standards and guide the design and deployment of future networks.

That framing matters. Verizon is positioning itself as an early contributor of field evidence to standards bodies rather than claiming a deployment lead. The 6G Innovation Forum, which Ericsson joined as a key participant, is the vehicle for converting research findings into engineering requirements.

Why 7GHz matters

Upper mid-band spectrum around 7GHz is widely viewed as candidate spectrum for 6G because it offers wide channel bandwidths — the trial used a 400MHz carrier, far wider than typical 5G channels — while sitting below the millimeter-wave bands that have struggled with coverage economics in 5G.

The trade-off is propagation. Wider carriers mean higher theoretical throughput, but higher frequencies mean shorter range and weaker building penetration. The Concord test is designed to quantify that trade-off with real hardware, real foliage and real building materials.

The mobile enclosure's varied glass and wall configurations are not incidental. Different glazing and construction materials attenuate high-band signals very differently, and indoor coverage from outdoor base stations is one of the main open questions for any 7GHz deployment model.

What comes next

Verizon and Ericsson will continue testing signal behavior from outdoor environments into buildings, measuring coverage, throughput, latency and stability as the pre-standard stack matures. Tenorio said the insights will guide the design and deployment of future networks, with the findings intended to inform global 6G standardization work as it progresses toward specification.