Dial principle of 4G module
The 4G LTE system can download at 100Mbps, 50 times faster than dial-up Internet access, and upload speeds up to 50Mbps, and can meet the requirements of almost all users for wireless services. The 4G LTE Advanced adopts carrier aggregation technology, and the downlink peak speed can reach 150Mbps. In addition, 4G can be deployed where DSL and cable modems are not covered and then extended to the entire region. Obviously, 4G has incomparable superiority. The 4G module dials the PPPD/RNDIS/ECM, for example, the RNDIS dialing mode, the user issues the RNDIS dialing special command, and the handheld terminal and the network start signaling negotiation—allocating the IP address. After the negotiation is completed, the dialing is successful.