How can I use 4G data, I have 4G dedicated data, but I don t know how to use it

Go to the business hall around your house and change your SIM card to a 4G one.

2G, 3G, 4G universal.

Are you satisfied with the above?

There are two types of mobile directed traffic.

The first is 4G single-mode directional traffic, which can only be used for 4G networks, and mobile phones cannot be used in the case of 2G 3G, and can only consume their own ** traffic.

The second is business directional traffic, which is generally referred to as 4G dedicated traffic, which refers to entering a certain APP software, watching TV and shopping in this software, and reading deduction is the directional traffic that this business gives away with skill, rather than the traffic of the slag spring deduction itself**.

At present, all smartphones on the market have 4G function, as long as the area can receive 4G network. Here is a special reminder that the traffic used outside the designated mobile location will not consume directional traffic, go to the mobile company to choose a suitable traffic ** to ensure that it is enough for your own use.

It is more troublesome, and the following conditions need to be met at the same time: the network has 4G coverage of your area, the mobile phone needs to support the mobile 4G function of the mobile phone (the business hall has a customized machine activity), open the 4G service (free function), go to the business hall to change a 4G mobile phone card, no need to change the number, the first time to change the card is free;

This can be referred to as follows:

4G special traffic is the first traffic you use when using 4G mobile phones. If you switch to a 3G mobile phone to surf the Internet, you won't use this special traffic. How to check the 4G data usage of your mobile phone:

1. First find China Mobile on our mobile desktop and click on it, as shown in the figure below.

2. Then click Traffic Manager, as shown in the figure below.

3. Then click on the traffic details, as shown in the figure below.

4. Then click on the Internet details, as shown in the figure below.

5. In this way, we can inquire about some specific situations of our mobile phone number using traffic.

The mobile communication system adopts new modulation technologies, such as multi-carrier orthogonal frequency division multiplexing modulation technology and single-carrier adaptive equalization technology, so as to ensure spectrum utilization and prolong the life of user terminal batteries. The 4G mobile communication system adopts more advanced channel coding schemes (such as Turbo code, cascading code and LDPC, etc.), automatic retransmission request (ARQ) technology and diversity reception technology, so as to ensure sufficient performance of the system under low EB N0 conditions.

The mobile communication system places high demands on the receiver. Shannon's theorem gives the minimum SNR required to achieve reliable transmission of capacity C in a channel with a bandwidth of Bw. According to Shannon's theorem, it can be calculated that for a 3G system, if the channel bandwidth is 5MHz and the data rate is 2MB S, the required SNR is; For a 4G system, to transmit 20MB of data over a bandwidth of 5MHz, the SNR required is 12dB.

It can be seen that for 4G systems, due to the high rate, the performance requirements for the receiver are also much higher.

First of all, your mobile phone should support 4G traffic, if you do, you turn on the data switch, which is the traffic switch that you generally want to turn on when you go to the Internet, and it will be automatically converted when there is a 4G network, and you can use it directly.

The phone supports 4G, and then as long as there is 4G network coverage, you can use automatic switching.