Samsung unveiled Exynos 5400 5G modem with two-way satellite communication
Samsung has officially unveiled the Exynos 5400 5G modem. This modem is used in the Galaxy S24 and Galaxy S24+ smartphones with Exynos processor. It will also reportedly be used in several next-generation Google Pixel devices - Pixel 9, Pixel 9 Pro, Pixel 9 Pro XL and Pixel 9 Pro Fold, which will launch later this year.
Here's What We Know
The Exynos 5400 is a 4nm 5G modem that supports NTN networks and download speeds of up to 14.79Gbps. It is Samsung's first modem with built-in support for NTN NB-IoT and NR NTN networks. This feature allows phones and tablets using this modem to have two-way satellite communication for messaging even when there is no cellular network nearby. Based on this feature, phones can have an SOS emergency call function.
The modem supports 5G networks in both millimetre band and below 6 GHz. It also supports 4×4 MIMO on networks below 6 GHz and 2×2 MIMO on 5G millimetre-band networks. The new Exynos modem achieves download speeds of up to 14.79 Gbps, thanks to its support for dual NR communication for FR1 and FR2 bandwidths (3GPP Release 17).
It is reportedly the first of its kind to be able to combine five carriers (3x 100MHz + 2x 40MHz) for a total theoretical download speed of up to 11.2Gbps, with 1024 QAMs in the FR1 frequency band only. Using FR1 is said to be more efficient and reliable than using the FR2 frequency band.
Samsung claims that the Exynos 5400 is the most energy efficient 5G modem as it is manufactured using Samsung Foundry's 4nm EUV process.
Source: Samsung
