LTE is an abbreviation for English Long Term EvoluTIon. LTE is also commonly known as 3.9G, with 100 Mbps data download capability, and is regarded as the mainstream technology for evolution from 3G to 4G.
On December 18, 2012, China Mobile Hong Kong TD-LTE network was delivered to the commercial;
On February 2, 2013, Zhejiang Mobile launched 4G commercial trials in Hangzhou, Wenzhou and Ningbo.
On February 27, 2013, Guangzhou and Shenzhen launched 4G commercial trials;
In March 2013, Shanghai Mobile will launch 4G trial commercial in April.
In the 3G era, China has dragged its feet, and in the 4G era, we need to move forward with great strength! The article mainly interprets some important technical terms of 3G network architecture and LTE network architecture, the difference between two generations of network architecture, and several key technical indicators of LTE 4G network.
2G/3G evolution process to LTE
2G/3G phase: Voice service is the main source of revenue. Broadband and packet domain networks continue to introduce new value-added services, and broadband service revenue is on the rise;
Business IPization phase: fixed network and mobile network, all of which are transformed and upgraded from circuit domain network to IP bearer through network intelligentization and softswitch deployment;
The convergence phase of fixed services and mobile services: the bandwidth and speed of fixed and mobile users will be greatly improved, and the construction of fixed and mobile service networks can be integrated in many aspects;
The introduction of value-added services: the introduction of IMS at the service layer to provide value-added services for fixed and mobile broadband users, and the deployment of Femto (home base stations) to achieve terminal convergence;
Integrated business operation phase: With the continuous development and expansion of IMS, the network evolves into an IP-based broadband all-packet network, providing services including voice, data, video and streaming media convergence;
3G-4G evolution
In the LTE phase, the fixed network is developed to the triple play. The wireless part of the mobile network is fully deployed with LTE, and the core part is evolved to the EPC network.
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