Deutsche Telekom has published a paper detailing the results of its largest Open RAN trial, the ‘O-RAN Town’ testbed it ran in the small city of Neubrandenburg last year. The paper, as the operator has commented before, hails some achievements and important learnings from the projects, but also highlights some challenges that must be met before multivendor Open RANs can be deployed at scale in macro networks. A year ago, the operator said it was aiming to do whole-city deployments in the near term, but at the end of 2022, it told LightReading that it was still in the process of qualifying vendors, and was looking for commercial roll-out in 2023-2024. Now the only build-out it envisages in 2023, according…