The reason for the "high definition" in the cell phone signal bar has been officially confirmed, which is the routine of operators.

In recent ten years, mobile phones in China have developed very rapidly. From functional machines to smart phones to smart terminals, not only hardware manufacturing technology, but also communication network technology has been at the forefront of the world's mobile phone field. From the previous 2G to 3G to 4G, from simply calling and texting to browsing online photos with data traffic to watching movies and playing games through the network, communication network technology has developed rapidly. Up to now, the number of 4G users in China has reached 65.438+0.03 billion.

Now that we have reached the 5G era, I wonder how the combination of 5G with the Internet of Things and smart terminals will affect our communication. Some time ago, some netizens suggested that if 5G is launched, how can I know that I am using a 5G network? In fact, this is also very simple, you can see it by looking at the signal bar on the screen of the mobile phone. There is often a lot of information on the signal bar, so what does HD mean?

The full name of HD is Vo LTE, which refers to a high-speed wireless communication standard for mobile phones and data terminals. The voice and data capacity of Vo LTE is more than three times that of 3G UMTS, which means that broadband can be used. The biggest feeling HD gives users is that the waiting time is shorter and the call quality is higher. The usual high-definition logo of our mobile phone will not be displayed, but some mobile phones are turned on by default, and some are turned on by users themselves.

So what are the benefits of opening this function? First of all, the biggest advantage is that you can have a high-quality call experience. Wechat, the most used social software at present, has the function of video or voice call, but sometimes the call quality may not be very good because of the network, and sometimes it will get stuck. If you turn on the Vo LTE HD calling function, you can not only improve the call quality of ordinary calls, but also improve the voice and video call quality of WeChat.