As part of AT&T’s nationwide Open RAN modernization initiative, our team successfully executed a comprehensive telecommunications infrastructure upgrade across key sites in Michigan. This involved the removal of legacy Nokia radio equipment and the installation of state-of-the-art Ericsson systems, including mid-band 5G radios and baseband units.
Our crews worked across urban and rural sites—including Detroit, Grand Rapids, and northern Michigan—ensuring minimal service disruption and maintaining seamless network operations throughout the process.
Key outcomes included:
Deployment of Ericsson AIR 6419 series radios supporting C-band and n77 spectrum
Improved 5G coverage reach and performance, with latency reductions up to 40%
Fully compliant, future-ready Open RAN architecture in support of AT&T’s fixed wireless (Internet Air) and mobile services
This upgrade represents a critical milestone in Michigan’s 5G evolution, enhancing connectivity and performance for thousands of users—both residential and enterprise.
Conducted physical inspections and audits of each cell site.
Verified existing Nokia configurations (RRUs, BBUs, antennas, cabling).
Coordinated with AT&T engineering teams to review upgrade scopes and site access.
Created site-specific method of procedure (MOP) documents.
Secured necessary state and municipal permits.
Confirmed compliance with local regulations and AT&T safety protocols.
Deployed crews with RF safety training and PPE inspections.
Powered down and disconnected Nokia radios and baseband units.
Removed old RRUs, jumpers, and unused coax/fiber cabling.
Transported decommissioned equipment off-site for recycling or return.
Installed new Ericsson AIR 6419 radios (supporting n77, DoD, and LTE).
Replaced/modified antenna mounts, sectors, or brackets as needed.
Routed and terminated new fiber jumpers to updated BBU cabinets.
Powered up and completed grounding and weatherproofing.
Integrated new Ericsson equipment into AT&T’s core network.
Performed drive testing, VSWR checks, and call testing (5G/4G).
Verified backhaul integrity, spectrum allocation, and handover behavior.
Coordinated with Ericsson NOC and AT&T backend teams for performance optimization.
Finalized as-built documentation and asset tagging.
Provided AT&T with photos, integration logs, test results, and compliance sign-off.
Scheduled post-install support window to address any immediate follow-up needs.
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