Japan's Docomo First to Launch 5G Carrier Aggregation
NTT Docomo in Japan has launched 5G sub-6 GHz Carrier Aggregation (CA), a world first. CA allows a phone to establish a data connection to the network using two different bands simultaneously, potentially doubling data speeds. Phones with Qualcomm's X55 modem support 5G CA, as do the Snapdragon 765, 786G, and just-announced 888. Docomo's implementation using 100 MHz in each of bands 78 and 79 allows them to offer 5G mobile download speeds of up to 4.2 Gbps without using any mmWave (though Docomo also offers mmWave 5G). Bands 78 and 79 are C-Band (AKA mid-band) spectrum, the kind the FCC in the US is currently auctioning off to carriers for additional 5G deployments. These frequency bands are thought to be ideal for 5G and should offer a better 5G experience once US carriers start deploying in them over the next few years. But US carriers can launch 5G CA before then to improve 5G data speeds.
Dec 4, 2019
Qualcomm today revealed the full details of its first Snapdragon chip with an integrated 5G modem, the Snapdragon 765. As its model number suggests, it offers better performance than the company's 6-series chips that have previously been common to higher-end (but not "flagship") phones in the US.
Dec 4, 2019
Qualcomm today announced the Snapdragon 865, its new top-end chipset to power flagship phones in 2020. Unlike most previous Snapdragon chips, the 865 is split into two physical chips: the main processor chip and a separate radio modem chip that includes a 5G modem based on the company's X55 5G modem.
Dec 3, 2019
Qualcomm today revealed that its next two chipsets for high-end 5G phones will be called the Snapdragon 865 and Snapdragon 765. The 765 — and a 765G variant for gaming phones — offers "integrated 5G connectivity, advanced AI processing, and select Snapdragon Elite Gaming experiences."
Feb 19, 2019
Qualcomm's new X55 standalone modem chip supports 5G in all major frequency bands as well as FDD and TDD modes. Support for FDD makes it the first chip to support T-Mobile's planned 5G network in the 600 MHz band.
Feb 18, 2020
Qualcomm today announced its third-generation 5G modem, the Snapdragon X60. The chip supports new types of 5G carrier aggregation compared to the X55 it replaces, including across TDD and FDD bands, and across mmWave and sub-6 bands.
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