The record uplink speed was achieved in an interoperability development test at an Ericsson lab. The test was performed with RAN Compute Baseband 6648 and a mobile device using MediaTek Dimensity 9200 flagship 5G smartphone chipset. The Uplink Carrier Aggregation combination involved a frequency division duplex (FDD) and time division duplex (TDD) channel, in a frequency range widely deployed in today’s 5G networks.
More precisely, the combination used was 50MHz FDD n1 and 100MHz TDD n77. By aggregating these two bands, communications service providers can considerably increase their uplink speeds, resulting in better network performance and user experience.
Sibel Tombaz, Head of Product Line 5G RAN, Ericsson, says: ”Super-fast uplink speeds make a big difference in the user experience. From lag-free live streaming, video conferencing and AR/VR apps, to more immersive gaming and extended reality (XR) technologies.”
“The 440 Mbps upload speed achieved by Ericsson and MediaTek will help make that difference,” she adds. “We are also continuously designing innovative solutions for optimizing 5G networks so our customers can make the best use of their spectrum assets.”
Service providers are seeking innovative ways of boosting capacity while using existing spectrum efficiently to meet growing demands for wireless data and applications. This is where carrier aggregation comes in, optimizing the service provider’s spectrum assets to bring to users better coverage, increased capacity, and higher data speeds.
HC Hwang, General Manager of Wireless Communication System and Partnership at MediaTek, says: “The successful result of combining Ericsson’s state-of-the-art 5G Baseband and MediaTek’s flagship smartphone chip has achieved another 5G industry milestone, and paves the way for superior mobile experiences to benefit users every day.”
Uplink speed is becoming more crucial with the expected uptake of gaming, XR, and video-based apps. For example, as AR devices gain popularity with larger augmentation objects, rendering becomes more demanding. This increases the demand on networks to deliver higher throughput and lower latency.