Ericsson Demonstrates Uplink Speed Developments Using Carrier Aggregation on mmWave

Ericsson and MediaTek announced that their recent test of four-component carrier (4CC) uplink aggregation on millimeter wave (mmWave) connectivity resulted in a peak throughput rate of 495 Mbps.

This demonstration – which included 425 Mbps in New Radio and 70 Mbps in LTE – used pre-commercial software on a device containing MediaTek’s M80 5G chipset. The lab test also used Ericsson’s RAN Compute baseband 6648 with the AIR 5331 mmWave radio. The test employed 39 GHz spectrum of NR, combined with a single carrier of LTE 19000 MHz spectrum.

Testing focused on uplink carrier aggregation and how it can help communications service providers to deliver higher data rates and capacity for uplink applications such as user-initiated streaming and content creation. The implication for fast uplink performance is that the user or subscriber does not need to be concerned with weak signals when videoconferencing on, for example, a phone.

“We continue to build on our previous success, breaking our own record in upload speed,” said Ericsson Head of Product Line 5G RAN, Hannes Ekstrom. “With a peak rate of close to 500 Mbps, we’ve demonstrated in this latest milestone with MediaTek how unprecedented data speeds can be delivered in uplink using mmWave and carrier aggregation.”

The demonstration follows a single-user multiple-input multiple-output (SU-MIMO) demo in April 2021, illustrating a single-user uplink data rate of 315 Mbps.