[ China Intelligent Manufacturing Network Enterprise News ] Recently, the Ministry of Industry and Information Technology officially issued an approval to approve China Unicom to adjust some frequencies for LTE networking. China Unicom's nationwide 900M/1.8G/2.1GHz frequency band will be further approved by LTE. Integrate existing frequency resources, focus on 4G network deployment and construction, and continuously enhance mobile broadband network capabilities.
Integrate existing frequency resources China Unicom focuses on 4G network deployment
First, it is conducive to improving the coverage and coverage depth of the LTE network: the 900MHz frequency band has the advantages of long coverage distance and deep penetration, and can realize low-cost LTE construction not only in wide-area scenarios such as rural areas, grasslands, oceans and highways. It can significantly enhance the indoor signal coverage quality of urban buildings, and it also has a strong supporting role for the deployment of mobile Internet of Things in the future. Since China Unicom's 900MHz band currently only has 2&TImes; 6MHz available bandwidth, and at the same time carries a large number of 2G and 3G services, LTE re-farming to achieve 900MHz frequency resources needs to solve the problem of how to release the traffic load that the band bears.
Second, it is conducive to the rapid and low-cost expansion of 4G coverage: 900 MHz, 1.8 GHz and 2.1 GHz bands are the core frequency bands of global LTE. China Unicom has a certain proportion of GSM and WCDMA network equipment deployed in these three frequency bands. The device supports smooth upgrade to LTE FDD. According to business and coverage needs, China Unicom will upgrade the coverage and capacity of LTE networks through rapid upgrades. This method can save equipment investment, reduce the difficulty of project implementation, shorten the deployment cycle, and has obvious time and cost advantages.
Third, it is conducive to maintaining the quality leading edge of China Unicom's 4G+ network and continuously improving user perception: the re-farming of the above-mentioned frequency bands means that Unicom can more efficiently and flexibly transfer valuable frequency resources to 4G networks according to the needs of business, market and competition. Tilting, on the one hand, improves the efficiency of spectrum utilization. On the other hand, the peak rate of the network can reach 450Mbps through multi-carrier aggregation technology. When conditions are ripe, high-order MIMO and high-order QAM technologies can be combined to achieve 1Gbps access in 4G service hotspots. Rate capability, powerful protection for user experience including HD video 1080P and 2K Ultra HD video services.
China Unicom will take this spectrum re-cultivation as an opportunity to carry out re-cultivation work in the 900MHz, 1.8GHz and 2.1GHz frequency bands in an orderly manner, accelerate network simplification, optimize network structure, and guide 2G/3G users to migrate to 4G to take advantage of frequency intensification. To contribute to the promotion of national mobile broadband levels.
So far, China Unicom has built a 4G network with better domestic user experience, and has obvious advantages in key indicators such as coverage rate, signal quality, and uplink and downlink rates. According to the 13th China Broadband Rate Report of the Broadband Development Alliance, from the perspective of mobile broadband speeds of different operating companies, China Unicom's download rate and 4G network user download rate are the highest, reaching 4.98 Mbps and 13.76 Mbps respectively. .
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