VLG 5G indoor coverage solution combines the advantages of DAS indoor coverage and digital indoor coverage techniques. A new 5G indoor active coverage solution for the existed DAS system, which is a complementary solution for other 5G indoor coverage solutions. 

"Three Increases"

Increase transmission rate network management Increase coverage area.

1. Increasing network speed

The system's unique power automatic balance algorithm is used to monitor the power of the two NR channels and balance them automatically. The power difference is less than 1dB, and the transmission rate is increased by more than 1.8 times compared to traditional single cable system. The down load peak value is above 800Mbps, and the average value is more than 500Mbps.

After the trans forma tion, the performance is close to the theoretical value of 2T2R, allowing users to intuitively experience the speed increase of 5G.

2. Network management

All antennas can be managed and controlled and all parameters can be monitored in real-time, including output power detection, abnormal alarm, offline detection.

Real-time monitoring of cables and antennas ensures that the network management can find any problem before users’ complaint.

3. Increasing edge coverage performance

Utilizing the unique dynamic power compensation mechanism of the system, when the output power of the antenna is low, the corresponding power will be automatically compensated and amplified to the standard value, ensuring the best transmission rate and overcoming the power of high-frequency 5G signals in the long-distance transmission situation. Power loss problem is resolved by the intelligent power compensation algorithm.

Make full use of the original cable without manual adjustment, ensure the transmission rate and coverage, and compensate the power loss of the 5G high-frequency signal introduced by the cables and passive components.

"Three Reductions"

Reduce construction costs Reduce construction difficulties Reduce maintenance costs.

At this stage, investment - income ratio, construction difficulty, and construction costs of digital indoor coverage system have to be considered. The advantages of the WD-MIMO+ single-cable frequency-shifting system may be more suitable for the early 5G indoor coverage and old DAS renovation. The construction cost, maintenance cost and construction difficulty are greatly reduced compared to the digital solutions. 

WD-MIMO+ supports on-demand transformation. If one RRU is used to cover different type of areas, the remote unit integrated antenna can be used to realize MIMO multi-stream transmission in the hot spots and the original single-polarized antennas keep unchanged to meet basic 5G indoor coverage in other areas.

"Power Saving"

• The full-load power consumption of the remote unit is less than 4W and less than 1W in power saving mode. The full-load power consumption of the near-end unit is less than 15W.

• With 30 antennas, the power consumption of 5G single-cable indoor coverage system is less than 150W, and the total power consumption is less than 900W when RRU is considered;

• Compared with the traditional single-cable/dual-cable DAS system, the power consumption is increased by less than 20%. 

• In the same scenario, the power consumption is less than 50% of the digital indoor coverage system, which greatly reduces the operation and maintenance cost. 

• In smart power saving mode, the frequency-shifting channel can be automatically shut down when the traffic flow of 5G is low and the power consumption of the remote machine is reduced to below 1W. When the traffic flow is higher than the threshold in the coverage area, the 5G frequency-shifting channel is automatically turned on to achieve MIMO effect.

"One Keep"--Keep Unchanged

Compatible with the original system 2G/3G/4G seamlessly.

• Support both NSA and SA networking; • Keep the original system TDD-LTE/FDDLTE/TDSCDMA/WCDMA/CDMA2000/GSM transparent; • Maintain the original coverage signal strength of 2G/3G/4G; • The system has a high fault-tolerant mechanism. In the event of an abnormasituation, the original single-cable transmission rate can still be guaranteed, and the original 2G/3G/4G DAS system can be used normally; • Easy installation and maintenance. Workers can install and debug the 5G single-cable room coverage system without additional technical guidance.