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Qualcomm and Ericsson announce a world-first in the development of 5G carrier aggregation

Qualcomm's new X60 modem was used in this test. (Source: Qualcomm)
Qualcomm's new X60 modem was used in this test. (Source: Qualcomm)
Qualcomm and Ericsson have been collaborating on the development of 5G technology for quite some time now. The partners' latest achievement is the successful completion of data calls using carrier aggregation. This was done using the standalone sub-6GHz form of the radio standard, which means the same could become more usable and attractive to mobile networks in the future.

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Carrier aggregation, or the magnification of data-transfers available to a given user through combining the bandwidth of individual frequencies, is largely taken for granted by 4G/LTE networks. However, this potential asset to reliability and speed is not within the reach of 5G to the same extent. However, Qualcomm and Ericsson has announced that this situation may be subject to change soon.

The two companies have worked together on the use of multiple frequencies (or "carriers") from the sub-6GHz bands of 5G. They have reported successful data calls using aggregrated 60 and 100 megahertz (MHz) carriers within the 2.5 GHz (or n41) TDD band in a 70% down-link configuration and using 4x4 MIMO.

This test, conducted at Ericsson faciliities located in Beijing, China, reportedly resulted in a top speed of 2.5 gigabits per second (Gb/s). The partners conducted another test in Sweden in which the 20MHz carrier from the 600MHz (n71) FDD band was successfully combined with one of 100MHz from the 2.5GHz (n41) TDD band.

These "milestones" were achieved using the standalone variety of sub-6GHz 5G. They also incorporated that new Snapdragon X60 modem, rather than the X55 found in many up-to-date flagship phones alongside Ericsson Radio System equipment.

The two OEMs now claim that this latest result of their new-radio project "significantly enhances the performance of 5G networks worldwide, unlocking even higher average speeds and better coverage for consumers.”

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Deirdre O'Donnell
Deirdre O'Donnell - Senior Tech Writer - 4209 articles published on Notebookcheck since 2018
I became a professional writer and editor shortly after graduation. My degrees are in biomedical sciences; however, they led to some experience in the biotech area, which convinced me of its potential to revolutionize our health, environment and lives in general. This developed into an all-consuming interest in more aspects of tech over time: I can never write enough on the latest electronics, gadgets and innovations. My other interests include imaging, astronomy, and streaming all the things. Oh, and coffee.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 08 > Qualcomm and Ericsson announce a world-first in the development of 5G carrier aggregation
Deirdre O'Donnell, 2020-08-27 (Update: 2020-08-27)