5G signals within 3,400-3,600MHz or 2,110-2,170MHz and full frequency band 5G signals falling within 2,515-1,675MHz full-band are shifted synchronously to low frequency for frequency-shifting transmission restoration, thus achieving transmission of multichannel same-frequency signals with a single cable. The 2G/3G/4G signals of the existing network is immune to interference from frequency-shifting signals.

With an unique automatic power balance algorithm, the system controls the power difference between the two NR channels within 1dB, improves the transmission rate by more than 1.85 times that of the single-cable DAS transmission, to be specific, the transmission rate may exceed 600Mbps, 700Mbps and 200Mbps respectively under the frequency band of 3.5G (100M), 2.6G (100M) and 2.1G (20M). Its performance is generally better than that of the physical two-cable indoor coverage system.

With an unique dynamic power compensation mechanism, the system can dynamically compensate each 5G signal at the antenna end up to above 30dB, to make up for the power loss produced during the long-distance transmission of high-frequency 5G signals in the feed cable, thus saving the use of 5G sources. The maximum output power of a single remote antenna can reach 2*23dbm, greatly increasing the coverage area of a single antenna and effectively reducing the construction cost per unit area.

In a typical scenario covering an area of 10,000 square meters, the self-used power consumption of 5G frequency-shifting MIMO system is less than 300W, indicating an improvement in power consumption of less than 20% compared with that of the traditional DAS system. In the same scenario, the power consumption of 5G frequency shift MIMO system is less than 50% that of the digital indoor coverage system, which greatly reduces the operation and maintenance cost of 5G construction, and has better performance in intelligent power saving. When 5G service is of little demand, the frequency-shifting function is automatically disabled, so that the power consumption for personal use is reduced by 50% additionally.

The 5G frequency-shifting MIMO indoor coverage system is equipped with an independent and complete integrated indoor coverage OMC, and has an extensible north-south interface. The supporting functions include device access, site management, site map, device distribution map, visual monitoring center, alarm management, polling self-check, operation and maintenance management, intelligent function, device version management.