LTE Cat. 18: Samsung’s new Exynos modem creates 1,2 Gbit/s

LTE Cat. 18: Samsung's new Exynos modem creates 1.2 Gbps

Samsung has unveiled the next generation of the Exynos modem, which is scheduled to go into mass production at the end of the year and is likely to be used in the Galaxy S9’s system-on-a-chip. The new Cat.-18 modem creates six frequency blocks and is to reach up to 1.2 Gbit / s in the downlink.

A six-carrier carrier aggregation (6CA), a 4 × 4 MIMO antenna layout and 256 QA modulation, the new Exynos modem in the downlink achieves a maximum transfer rate of 1.2 Gbit / s. This makes it 20 percent faster than the current Exynos 9 (8895), which is in the Galaxy S8 and S8 + (test). Exynos 9 (8895) has a modem that can combine five frequency blocks (5CA) and otherwise have the same specifications.

LTE Cat. 18 is also marketed as the LTE Advanced Pro by the 3GPP and is used in the licensed as well as unlicensed spectrum to reach the high bandwidth. In addition to the well-known LTE bands, in Germany about 3 (1.800 MHz), 7 (2,600 MHz), 20 (800 MHz) and, in recent years, the GSM band 8 (900 MHz), frequency blocks from the Wi-Fi Spectrum for LTE.

Also Qualcomm reaches 1.2 Gbit / s

Samsung is not the first vendor to announce an LTE modem with up to 1.2 Gbps in the downstream. Already in February of this year Qualcomm presented the Snapdragon X20, also LTE Cat. 18. Interestingly, Qualcomm uses the 4 × 4 MIMO and 256-QAM to achieve the full bandwidth, including the 3CA, while Samsung 6CA requires. Apparently, Samsung can not aggregate three carriers on all four antennas.

Can be used in the Exynos-SoC of the Galaxy S9

Samples of the Snapdragon X20 have been on the road to the corresponding customers since the announcement in February, the market launch expected by Qualcomm in the coming year. The modem could, for example, be used in the next high-end SoC Snapdragon 845. At Samsung, the mass production of the new Exynos modem will start at the end of the year. This, in turn, is an indication that the next high-end SoC of the Exynos series could be equipped with it. New Exynos chips celebrate their premiere often in new Galaxy smartphones, time would be the Galaxy S9 in question. The product is not yet ready for use in Galaxy Note 8. The Exynos 9 (8895) should be installed here again.



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