China Mobile and Huawei jointly developed: 700MHz/900MHz dual-band dual-mode base station with same coverage of 5G and 4G signals

According to news on January 26, China Mobile Research Institute and Huawei recently completed field tests of 700MHz/900MHz dual-band dual-mode base stations in six cities including Tengchong, Chuxiong, and Lincang in Yunnan Province, verifying the product’s ultra-long coverage capabilities and Hundreds of megabytes of business speed.

According to reports, the base station supports 5G and 4G sharing the same site, construction, and coverage, which can promote the reduction of network construction costs, promote 5G and 4G signal coverage, and help the national "signal upgrade" special action to be implemented quickly. According to previous reports, the Ministry of Industry and Information Technology and other national ministries and commissions issued the "Notice on Carrying out the Special Action of "Signal Upgrade" earlier this month, proposing that "mobile network (4G and 5G) signals will be significantly improved" in rural scenarios in towns and villages. new goals. China Mobile is researching efficient and low-cost 4G and 5G coverage solutions to address the difficult, long-term and high-cost problems of station construction in remote rural areas. In response to the above problems, China Mobile proposed an ultra-wideband comb screening intermodulation model and a dual-band integrated radio frequency link architecture to overcome the technical problems of cross-band passive intermodulation elimination and single-channel large-bandwidth application, and worked with industry partners to achieve Dual-band RRU with low intermodulation, high sensitivity, low power consumption and high efficiency. Based on this, we have successfully developed a 700MHz / 900MHz dual-band dual-mode base station that supports 5G and 4G standards. In this field trial in Yunnan Province, the 4G uplink rate of the dual-band base station can reach 32Mbps and the downlink rate can reach 64Mbps; the 5G uplink rate can reach 139Mbps and the downlink rate can reach 252Mbps. China Mobile officials stated that this product can save up to 20% of construction and operation and maintenance costs, reduce network construction and operation and maintenance investment, and provide guarantee for China Mobile to accelerate network coverage in remote rural areas.

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