For the Kirin 620 chip is the cow, he said,

Huawei's new generation of mobile processors was born. It adopts 8-core A53 architecture and ARMv8 instruction set. It supports 64-bit system and five-mode full-range. It has a very high 4G network ratio and intelligent power consumption adjustment function. The product code is Kirin 620. Based on the good chip reputation of the previous Kirin series CPU, the advent of the Kirin 620 also touched the nerves of the industry, and became one of the hottest events in the mobile phone industry. Unlike the end products, the development of the chip is more labor-intensive and the requirements of the technology itself are more demanding. As one of the mobile phone manufacturers that can independently develop CPU chips, what is the poison of Kirin 620? Let's take a look at the back of product development.

Extremely high 4G accounted for the difference between other big manufacturers chips

After entering the 4G era, consumers tend to pay more attention to the speedy experience on the Internet. The newly released Huawei Kirin 620 chip has an innate advantage that is not available to other large CPUs - a very high 4G network ratio.

What is the 4G network ratio? What are the advantages? In answering the first question, we might as well give an example of a life scene: everyone's mobile phone passes through a network that is not well covered, and everyone's mobile phone resides on 2G/3G. After passing through this area, some mobile phones are still on 2G/3G, and some mobile phones show that they have returned to 4G, and the signal is also very good. Being able to quickly return to the 4G network means that the 4G network capacity of this phone is stronger, so you can understand that the high 4G network can have better 4G signals and get more 4G time in the network. This advantage of the 4G cell edge of the signal is more apparent.

In fact, on a fixed line, different 4G terminals have different camping times under 4G, which mainly depends on the baseband processing performance of the mobile phone chip, the design specifications of the mobile phone antenna, and the overall network selection strategy. These are all done, and users will often experience: the signal of the mobile phone is a little better than others, the same download speed is faster than others, and your mobile phone can be used when other mobile phones are not available. Therefore, the above points are the contents that truly reflect the core technology capabilities of the chip and the mobile phone. The most direct feeling to the user is that the Internet is faster than other mobile phones, and this is the advantage of the Huawei Kirin 620 chip.

It should be noted that for the optimization of the related user experience of 4G network share, in the early stage of 4G business development, there is not much experience to inherit. It is necessary to pass a large number of live network test analysis, and then gradually form the corresponding scheduling and optimization strategy, and then do testing, then optimize, and continuously optimize and improve before finally forming the exclusive secret of high-occupancy network ratio.

Complete test system creates strong communication capabilities

According to chip engineers, in order to bring users a better experience in the live network, the baseband chip has been conducting a large number of comparison tests based on the live network. The test route covers the city's key road sections and surrounding suburban routes, and the matching terminals select a number of top flagship models in the industry. From the telephone connection rate, dropped call rate, 4G uplink and downlink rate, various call delays, handover delays, etc. that users can directly feel, as long as any indicator is weaker than the competitor, the Log that tests all the information will return to Inside R&D, R&D personnel are responsible for giving positioning and interpretation.

Although Huawei has the strongest laboratory environment in China, the number of equipment such as laboratory base stations and core networks, and the combination of various instruments and meters should be unmatched by other chip manufacturers. This did not allow developers to stay in the lab alone. Take Huawei's Kirin chip as an example. When testing in Beijing, the city's second, third, fourth, fifth ring, Chang'an Street and various suburban main lines are the only roads for each chip. The type is a benchmark and is tested. In addition, the testers of Kirin chips can also be seen along the high-speed rail lines throughout the country. It should be said that for the best communication network performance, internal testers are also quite a fight. It is this kind of continuous initiative to find problems, continuous improvement and improvement, and improve the quality of the actual R&D version bit by bit, and build the strong communication experience of the Kirin series chips.

Performance and power deductive balance beauty

Talking about the mobile phone running experience, there are two aspects - the ultimate performance + strong battery life. The newly released Huawei Kirin 620 can be said to have powerful hardware performance, support for 64-bit systems, and use the true eight-core, Cortex A53 architecture core. As everyone knows, while ensuring performance, this chip has also achieved breakthroughs in power consumption.

In the view of Kirin engineers, the chips developed must meet the user's needs of the scene. It is the ultimate goal to get things done with the lowest core frequency. In fact, the CPU is very similar to the car engine, the resources are limited, and both are pursuing higher power and lower fuel consumption. Therefore, Kirin has established a multi-core control management technology with GTS as its core, and hopes to better meet the needs of users. The R&D engineers first used a lot of research to classify the common usage habits of users into forty scenarios. Then through the computer to simulate the overall task load scheduling and resource occupancy of these scenarios, establish the simulation model closest to the user's usage habits, first adjust the entire inter-core scheduling strategy in the simulation environment, and formulate various switching thresholds. With this foundation in place, software engineers began implementing the model on the phone. Then, the mobile phone is tied to various observation instruments, and the task load, CPU opening and frequency are checked in real time, and the overall CPU load and the assigned core/frequency are suitable. What is finally presented to the user is a smooth experience and a longer standby. This adjustment process is very delicate, and any increase or decrease in the weight of both ends of the balance needs to be re-adjusted to reach equilibrium.

The increase in power consumption and performance is endless. Any power consumption that does not affect the user experience will continue to be tapped and gradually deployed to a new generation of chip platforms. From the user's point of view, the real experience has continued to improve power consumption.

It should be said that the introduction of Huawei's Kirin 620 chip has far-reaching significance. It has got rid of the limitations of international manufacturers in the core components of mobile phones, and at the same time has strengthened its internal integration capabilities. After a long period of strategic forbearance and persistence, Huawei began to show explosive growth. In the process of rapid growth, we should also see the extraordinary path taken by this “China Core”. At the same time, the first mobile phone equipped with the Kirin 620 processor will also be released in the near future. This mobile phone product from the future will be found on the mobile phone product. You may wish to wait and see.