The Traditional Distribution System : DAS/POI Coupler Power Divider RRU Cable Fiber BBU POI Passive network is difficult to manage and requires complex link calculation. Most of the power are wasted on the copper cable. At least 20W output is required (POI depends on output power of RRU). The use of a large number of RRUs to cover a wider area needs more space and heat dissipation is significant. All the base stations should be installed at the same site. In the past, we use the distribution system which is based on the cables to resolve the coverage in building. Thi network can meet the coverage requirement in most cases. is widely used in 2G system. But it has its own problem. here and there Because the cables are difficult to layout, the signal resoureces have to be close to the buiding. sometime we have to add new basestations. antenna, coupled, this is cable, so the RRU should be in the same buiding should be on the same site coupler couple The POI needs high power output. point of the interface Network is difficult to expand.

Multiservice Distributed Access System MDAS Solution Multiservice Distributed Access System Active network is easier to manage and expand. NO link calculation is required. Built on FOC infra. No wasted power and no interference. RU1 RU2 RU3 RU4 RU5 RU6 AU 2G 3G LTE EU1 EU2 MDAS Solution Coax　　Fiber Composite MIMO1 MIMO2 Very low output power is required. RUs are tunable via NMS and can be easily tested and optimized. In the past, we use the distribution system which is based on the cables to resolve the coverage in building. Thi network can meet the coverage requirement in most cases. is widely used in 2G system. But it has its own problem. here and there Because the cables are difficult to layout, the signal resoureces have to be close to the buiding. sometime we have to add new basestations. antenna, coupled, this is cable, so the RRU should be in the same buiding should be on the same site coupler couple The POI needs high power output. point of the interface

MDAS Value Proposition Multiservice Distributed Access System Supports 2G, 3G, 4G and 5G (future) networks simultaneously. Optical fiber based transmission mechanism. Can provide coverage up to 400,000 sqm. per BTS (POI solution requires 1 BTS per POI to cover 8,000 sqm.) MDAS does not require link budget calculation. MDAS provides end-to-end management capabilities (AU, EU and RU), line-fed powering of RUs for significant OPEX savings. (POI requires significant space and controlled environmental temperature due to high heat dissipation). MDAS is easy to implement, maintain, manage and expand. MDAS can facilitate and provide better SLA with end users. the struct is similar, but the technology is different from the traditional one. This system is based on the optical fibers, the digital signals are transferred and recieved beween AU ,EU and RUs.

OPEX Savings: Low Power Consumption MDAS only requires less power consumption compared to POI, thus, there’s a significant savings in OPEX with regards to power requirement. TABLE: MDAS vs POI power requirement comparison

MDAS Composite Cable Fiber composite cable used by MDAS is relatively cost-effective than the use of RF feeder cables in traditional DAS system.

MDAS Solution Deployment MDAS CONNECTIVITY COAX FIBER COMPOSITE the struct is similar, but the technology is different from the traditional one. This system is based on the optical fibers, the digital signals are transferred and recieved beween AU ,EU and RUs.

Operators & Communication system Frequency Bands System can be customized China's frequency band table (only for reference): Operators & Communication system UL DL CMCC GSM 889~909MHz 934~954MHz CMCC DCS 1710~1735MHz 1805~1830MHz CMCC TD-SCDMA 2010~2025MHz CMCC TD-LTE 2320~2370MHz CUCC GSM 909~915MHz 954~960MHz CUCC DCS 1735~1755MHz 1830~1850MHz CUCC WCDMA 1940~1970MHz 2130~2160MHz CUCC TD-LTE 2300~2320MHz CUCC FDD 1755~1765MHz 1850~1860MHz CTCC CDMA 825~835MHz 870~880MHz CTCC TD_LTE 2370~2390MHz CTCC FDD 1765~1780MHz 1860~1875MHz

Installed Base November 2015; CMCC Central;15,000 AU, 65,000 EU and 318,000RU, to construct CMCC LTE network. September 2015; CMCC Liaoning Company; 200 AU，400EU，3000RU January 2015; CMCC Jiangsu Company 20,000 RUs January 2015; CMCC Hainan Company; 60 AU，330 EU，1,850 RU May 2014; CMCC Hainan Company; 2000 RUs