O2 Telefónica achieves provider aggregation breakthrough


The provider aggregation trial was supported by Nokia and MediaTek

At O2 Telefónica’s Innovation Cluster close to Berlin, the provider has efficiently aggregated sub-6 GHz spectrum frequencies in a two-component provider uplink Provider Aggregation (CA) trial on 5G Standalone. The trial, which was supported by Nokia and MediaTek, is reportedly the primary of its form and achieved a peak throughput of 144 Mbps utilizing the mix of a 20 megahertz provider on the 1800 MHz band (n3) and a 70 megahertz provider on the three.6 GHz band (n78).

Nokia offered options from throughout its AirScale portfolio together with baseband, huge MIMO and RRH merchandise, whereas MediaTek 5G Launch-16 M80 modem built-in into the MediaTek Dimensity 9000 flagship chipset.

“We wish to provide our prospects an optimum 5G expertise of their on a regular basis digital lives,” mentioned Mallik Rao, CTIO at O2 Telefónica. “With frequency bundling, we’ll allow our prospects to take pleasure in sooner downloads and uploads in our 5G community sooner or later. Along with our long-time companion Nokia, we’ve succeeded in taking this step additionally for uploads within the 5G standalone community. Provider aggregation will take our 5G community to the subsequent stage and enhance the community expertise.” 

CA permits cellular operators to make use of a number of sub-6 GHz spectrum channels concurrently, as a way of accelerating the bandwidth and speeds of their 5G networks. On this trial, the businesses aggregated bands with totally different spectrum use strategies — the 1800 MHz band (n3) makes use of Frequency Division Duplex (FDD) mode, whereas the three.6 GHz band (n78) makes use of Time Division Duplex (TDD) mode.

FDD makes use of separate frequencies for the uplink and the downlink and TDD makes use of a single frequency for each uplink and downlink, and subsequently, they transmit at totally different instances, making it extra appropriate when paired spectrum will not be accessible. Basically, FDD is taken into account higher for protection, whereas TDD is healthier for capability.

FDD/TDD aggregation supplies additional community efficiency enhancements as a result of it creates a kind of goldilocks scenario, by which the high-band TDD protection space may be improved by combining TDD with low-band FDD spectrum, and the TDD spectrum can considerably enhance the general downlink throughput.

“Uplink Provider Aggregation of FDD and TDD combines frequencies to supply greater information charges and elevated protection, particularly on the TDD cell edge and indoors,” Nokia defined in a press launch. “This mixture can significantly scale back the price of community development whereas enhancing community protection and the consumer expertise in addition to serving to guarantee low latency.”


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