Ericsson and MediaTek have successfully performed Carrier Aggregation (CA) by merging four channels to deliver a downlink speed of 4.36 Gbps. In an interoperability development test (IoDT), Ericsson and MediaTek completed a successful 5G data call using low-band and three mid-band channels in the Sub-7 GHz frequency range (FR1) bands. These bands carry most of the telco 5G traffic.
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4CC Carrier Aggregation (4CC CA)
Ericsson and MediaTek have performed four component carrier (4CC) aggregation combinations – one FDD (frequency division duplex) and three TDD (time division duplex) to deliver the highest known download speed of 4.36 Gbps on this band combination, which will expand 5G deployment options. for Communication Service Providers (CSPs) by allowing different combinations of frequency bands.
Improved capacity and experience
This 4CC combination allows for higher throughput, which will improve the user experience by enabling faster downloads and seamless video streaming for both smartphone users and fixed wireless access (FWA) subscribers. In addition, Ericsson’s flexible Carrier Aggregation solution enables service providers to make the most of their available spectrum and provide high-quality 5G connectivity.
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Technical setup for the CA test
Spectrum:
According to the statement, the peak downlink speed of nearly 4.4 Gbps was achieved by 20 MHz of the AWS (Advanced Wireless Service) band, 80 MHz of the CBRS (Citizens Broadband Radio Service) band, and 200 MHz of the C-band spectrum. to combine.
Radio Equipment & Modem:
The test was performed with MediaTek M80 5G modem, Ericsson’s Baseband 6648, TDD Massive MIMO radios AIR 3268, AIR 3239 and TDD Radio 4426.
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In 5G networks, Carrier Aggregation offers a unique ability to combine many frequency bands, enabling higher speeds, capacity enhancement and user experience. By combining the FDD spectrum with the TDD spectrum, more users can benefit from carrier aggregation improvements.
