Qualcomm launched the Snapdragon 855 chip in 2019. This chip does not support 5G networks. In order to allow the Snapdragon 855 chip to support 5G networks, Apple launched the Snapdragon X50 baseband. The Snapdragon 855 chip smartphone can support 5G networks; perhaps due to the hasty launch, the Snapdragon X50 baseband only supports NSA 5G networks.
5G networks are divided into NSA and SA. NSA is a non-independent network and can be built based on the current 4G network. This is the main reason why many operators adopt NSA; however, the shortcomings of NSA are also obvious-it cannot achieve lower latency At the same time, the speed is also limited, and SA is the “ultimate form” of the 5G network. The network does a good job in terms of transmission rate and delay!
Since the Snapdragon X50 baseband does not support SA, when the operator launches the SA 5G network, the smartphone equipped with the Snapdragon 855 chip cannot enjoy the latest and fastest 5G network; what is different from the previous 3G and 4G networks is In many places, after SA is launched, NSA will be closed, which results in Snapdragon 855 mobile phones where the SA network is laid and cannot use the 5G network.
However, it should be noted that the new 5G smartphones on the market support SA 5G networks, because the Ministry of Industry and Information Technology in 2019 required all 5G smartphones launched by mobile phone manufacturers in 2020 to support “dual-mode” 5G networks, otherwise Sales are not allowed; therefore, even relatively low-priced 5G smartphones, such as Redmi Note9 5G, Realme Q2, these thousand yuan 5G phones, also support SA networks.
NSA is just a transition plan for operators, and it will eventually be abandoned; so when mobile phone manufacturers launch Snapdragon 855 chips with Snapdragon X50 baseband phones, Xiaozhai does not recommend small partners to buy them, because those machines are entirely to support 5G Products with functions and “make up”, and the prices of those machines at that time were not very low, at least three to four thousand yuan.
Some 5G mobile phones equipped with Snapdragon 855 chip (or Snapdragon 855 Plus) + Snapdragon X50 baseband were released at the end of 2019. It has only been more than a year since these machines have been on the market. A three or four thousand 5G smartphones will last for one year Many do not support the latest 5G networks, which Xiaozhai thinks is a “blood loss”; while at the same time, Huawei’s 5G smartphones equipped with the Barong 5000 baseband can support both NSA and SA 5G networks.
As long as it is a 5G smartphone that uses the Snapdragon X50 baseband, it cannot use the SA 5G network; however, the Snapdragon 865 chip launched later is matched with the Snapdragon X55 baseband, which supports “dual-mode” 5G networks, namely NSA and SA. , As for the Snapdragon X60 baseband built into the Snapdragon 888 chip, it also supports NSA and SA; while the iPhone 12 series machines are equipped with the same Snapdragon X55 baseband as the Snapdragon 865 chip, and also support NSA and SA 5G networks; in addition, all on the market All Huawei 5G phones support “dual-mode” 5G networks!