Principle of calling between Huawei mobile phone and satellite

The principle of communication between Huawei mobile phones and satellites can be achieved through user dialing, base station connection, satellite communication gateway, satellite transmission, satellite receiving station, target area network and target mobile phone reception, etc. Detailed introduction: 1. User dialing. When the user makes a call, Huawei mobile phone will send the call request to the operator's base station through the mobile phone network; 2. Base station connection, the base station will receive the user's call request and forward the request to the operator. The core network of the provider will authenticate the user and forward the call request to the satellite communication gateway; 3. Satellite communication gateway, etc.

The principle of communication between Huawei mobile phones and satellites can be explained through the following steps:

1. User dialing:

When a user makes a call, the Huawei mobile phone will send the call request to the operator's base station through the mobile phone network (such as 2G, 3G, 4G or 5G).

2. Base station connection:

The base station will receive the user’s call request and forward the request to the operator’s core network. The core network authenticates the user and forwards the call request to the satellite communications gateway.

3. Satellite communication gateway:

The satellite communication gateway is the key device connecting the ground network and the satellite communication system. It is responsible for converting the user's call request into a signal suitable for satellite communications and sending it to the satellite.

4. Satellite transmission:

After the satellite receives the call request signal from the ground, it will process the signal and send the signal to the satellite receiving station in the target area through the satellite communication link.

5. Satellite receiving station:

After the satellite receiving station receives the call request signal from the satellite, it will forward the signal to the satellite communication gateway in the target area.

6. Target area network:

The satellite communication gateway forwards the received call request signal to the core network in the target area, and then sends the signal to the target mobile phone user through the base station.

7. Target mobile phone reception:

After the target mobile phone receives the call request signal from the base station, it will convert the signal into a sound signal and play it through the speaker of the mobile phone to realize the call.

It should be noted that satellite calls require the support of the satellite communication system. Satellite communication systems include ground equipment (such as satellite communication gateways and satellite receiving stations) as well as satellites. Satellite communications systems typically have wider coverage, enabling communications in places where terrestrial infrastructure is not available, such as in remote areas, high altitudes, or during disasters.

The principle of satellite communication is to use satellites as repeaters to transmit communication signals from one area to another. The user establishes a communication connection with the ground network through the mobile phone, and then transmits the signal to the mobile phone in the target area through the satellite communication system. This approach allows communications to span large distances while also overcoming terrain, distance and ground infrastructure limitations.

It should be noted that satellite communications require dedicated satellite communications equipment and services, which usually require additional fees and subscriptions. In addition, the delay of satellite communication is high, which may have a certain impact on call quality. Therefore, satellite calls are usually used in specific scenarios, such as remote areas, emergency rescue, military communications, etc., while in general, mobile phone communication networks (such as 2G, 3G, 4G or 5G) are still the main communication method.

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