What is the working principle of a 4G module?

The wireless technology carried by a 4G LTE module endows the communication module with characteristics such as high spectrum efficiency, high speed, low latency, and low cost. A 4G module integrates high-quality voice and broadband data, combining multiple operator services and possessing an advanced integrated mobile bandwidth wireless system.

What is the transmission rate of a 4G module?

Based on a maximum serial port transmission baud rate of 115200, considering the impact of wireless network speed, it is typically greater than 100KB/s. In reality, faster speeds only guarantee shorter latency.

What is the dialing principle of a 4G module?

The download speed of a 4G LTE system is 100Mbps, 50 times faster than dial-up networks, and the upload speed can reach 50Mbps, which can meet the wireless service needs of most users. Furthermore, 4G LTE Advanced uses carrier aggregation technology to achieve a peak downlink speed of 150Mbps. In addition, 4G can be placed in areas not covered by DSL or cable modems, thus extending coverage to the entire area.

Clearly, 4G has significant advantages. The 4G module uses PPPD/RNDIS/ECM dialing mode. The user issues a special RNDIS dialing command, and the handheld terminal and the network begin signaling negotiation, then allocate IP addresses and work together to complete the task.

Applications of 4G Modules

1. 4G modules are used to collect real-time office data from parcel lockers, monitor their security, and provide stable, uninterrupted real-time transmission, reducing operating costs for courier companies and improving service capabilities.

2. 4G modules are now widely used in automotive video surveillance, handheld tablets, industrial routers, and other fields.

3. Charging piles connect to 4G modules, rapidly transmitting large amounts of real-time data and monitoring information to the office center and users. This optimizes the handling of loose charging piles, saving manpower and resources, thus achieving low costs.

4. Self-service terminal devices require large amounts of data transmission over the network. Through the high-speed network of 4G modules, all terminal transaction data and device operations are transmitted to the transaction center in real time, thereby reducing the transaction center's operating capital and planned processing operations.