Recently, Ericsson and MediaTek have deeply explored the potential of 5G with the purpose of improving user experience and set a milestone record - successfully completed carrier aggregation on millimeter waves, achieving an uplink rate of nearly 500Mb per second. That's twice the current upload rate and the fastest yet.
The demonstration took place in June this year, with Ericsson and MediaTek performing four-carrier (4CC) uplink aggregation on mmWave, achieving a peak rate of 495Mbps (425Mbps for NR plus 70Mbps for LTE). The demonstration used pre-commercial software on a device with the MediaTek M80 5G chipset inside. The lab test used Ericsson RAN Compute baseband 6648 and AIR 5331 millimeter wave wireless systems.
This test focuses on uplink carrier aggregation and is the first of its kind. The test demonstrates how the solution can help communications service providers deliver higher data rates and capacity for uplink applications such as user-initiated streaming (AR/VR) and content creation. With fast uplink performance, users don’t have to worry about weak signals during phone and video conferencing.
Upload rate determines how quickly data is sent from a computer or handheld device to the Internet , including uploading files such as photos and videos to social media or collaborative work sites. upload speed is also critical to the image and sound quality of video conferencing. The powerful uplink of means that when using applications such as Skype or Microsoft Teams, it can reduce or even eliminate the occurrence of picture and sound freezes and interruptions. Faster uplinks can also improve the VoIP and online gaming experience.
Hannes, head of Ericsson’s 5G RAN product line Ekström said: “We have built on our previous success by breaking our own upload speed record. This latest milestone achieved in partnership with MediaTek achieves peak speeds of nearly 500Mbps, demonstrating how unprecedented performance can be achieved using mmWave and carrier aggregation in the uplink.” data rates, this demonstration of enables our customers to enhance their 5G products and significantly improve the user experience with higher uplink data rates
JS, General Manager of Wireless Communications Systems and Partnerships at MediaTek. Pan said: " This collaboration with Ericsson demonstrates industry-leading millimeter wave uplink technology, which shows that MediaTek has once again pushed the envelope to establish the 5G milestone . 5G millimeter wave connections help improve network coverage and capacity, improve performance and introduce more diverse use cases."
Before establishing this latest technology milestone, Ericsson demonstrated single-user multiple input multiple output (SU-MIMO) in April 2021. At that time, Ericsson achieved a single-user uplink data rate of 315Mbps, 15-20 times faster than today's typical uplink rates.
More technical details
Ericsson and MediaTek use a non-standalone architecture to aggregate four carriers of 100MHz each in the uplink (aggregating 8x100MHz in the downlink and 4x100MHz in the uplink). This aggregation in a lab environment achieved a rate of 495Mbps (425Mbps for 5G plus 70Mbps for 4G), which is twice the current uplink rate on the market.
This test used NR’s 39GHz spectrum (400MHz) and aggregated it with a single carrier of LTE’s 1900MHz spectrum (20MHz), then used the LTE and NR links to aggregate the entire bandwidth, ultimately achieving a total rate of nearly 500Mbps.
Source: Ericsson China
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