Dear customers, you have successfully selected the LTE high-speed Internet access function. What does this mean?

1. Don't worry about this. Unicom 3G users will open the 42M high-speed Internet access function for this number by default. If your mobile phone supports it, the location has 42M network coverage, and the internet speed will be improved. This is a free function. Received the short message "Dear customer, you have successfully selected the 4G high-speed Internet access function" from China Unicom. Have you enabled 4G Internet access?

2.LTE (Long Term Evolution) is a UMTS (Universal Mobile Telecommunication System) organized by 3gpp (3rd generation partnership project). Long-term evolution of universal mobile telecommunication system) was formally established and started at TSG RAN#26 meeting of 3GPP Toronto in February 2004.

2. Key transmission technologies such as 2.OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple Input & Multiple Output) have significantly improved the spectrum efficiency and data transmission rate (20M bandwidth 2X2MIMO, in the case of 64QAM, the theoretical maximum downlink transmission rate is 20 1Mbps, which is about 140Mbps after the signaling overhead is removed, but according to the actual networking and terminal capacity limitations, Generally speaking, the downlink peak rate is 100Mbps, and the uplink peak rate is 50Mbps), which supports many kinds, the global mainstream 2G/3G frequency bands and some new frequency bands, so the spectrum allocation is more flexible, and the system capacity and coverage are improved.