Is a 5G phone really just as simple as a 4G phone with a baseband? Lu Weibing, President of Xiaomi China region and general manager of Redmi brand said it's not the fact.
Lu Weibing said on Thursday evening that for a 5G mobile phone, it is not as simple as adding a 5G modem, but a systematic redesign of the platform, structure, heat dissipation and antenna. Xiaomi's first dual-mode 5G phone will be released on December 10.
Taking the Redmi K30 series as an example, he said after using highly integrated parts as much as possible, the total number of parts still increased by more than 500 and the PCB area also increased by about 20%.
It turns out that 4 sets of conventional 4G mobile phone antennas are enough, including 2/3/4G antennas at both ends, a GPS/Wi-Fi/Bluetooth triple antenna, and an independent Wi-Fi antenna.
On 5G mobile phones, the number of antennas directly increases to more than 12 groups, not only to include 4G mobile phone antennas, but also to add multiple sets of 5G band antennas.
With the increase in the number of antennas, more slotting of the machine frame has been brought. It is not only to slot 5G antennas, but also to ensure the structural strength of the middle frame after slotting, which is a huge test for the structural design of mobile phones.
Not only that, the 5G network has a very high network bandwidth, which consumes more power during peak downloads. The data power consumption is increased by 50% -100% compared to traditional 4G mobile phones.
The common cooling scheme configuration cannot cope with such heat, which is why 5G mobile phones are more Adopt liquid cooling system.
In addition, the Redmi K30 series is equipped with Qualcomm's latest Snapdragon 765G processor, which integrates the Snapdragon X52 baseband.
Because the external baseband requires additional interfaces to transmit data, and it will occupy a larger area, the Snapdragon 765G with integrated baseband can be described as the optimal solution.
Lu Weibing believes that the 7nm Snapdragon 765G can be said to be one of the best energy-efficient 5G processors at present.
