FDD Begins Outpacing TDD for 5G Deployments: Dell'Oro
While time division duplexing (TDD) dominated early 5G deployments, frequency division duplexing (FDD) is starting to outpace the other technology, Stefan Pongratz, Dell’Oro Group vice president-radio access network market research, said in a blog this week. FDD relies on different…
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frequencies for uplink and downlink, while TDD uses different time slots. “Operators initially tend to focus on the upper mid-band before complementing it with narrow-band FDD deployments,” Pongratz blogged. But results from 5G FDD-only deployments suggest “significant potential,” he said. In the Netherlands, a delay in making C-band spectrum available prompted providers “to optimize the use of existing assets, coordinating 4G and 5G technologies across high and low FDD bands to create a high-performance network.” Testing shows “impressive average data rates and latency results in the Netherlands even with the C-Band delays.”