Usb Type-C,Type-C Data Cable,Aluminum Alloy Data Cable,Zinc Alloy Data Cable Dongguan Pinji Electronic Technology Limited , https://www.iquaxusb4cable.com
Under the unified planning of China Mobile Communications Group, the third phase of TD-SCDMA (referred to as TD) construction is nearing completion. With the joint efforts of all teams and personnel, the TD network has been built at a pace that was unimaginable during the GSM era. However, due to various objective challenges—such as the massive scale of the project, the maturity of equipment, and the increasing difficulty in securing site locations—TD network construction has faced numerous obstacles. Hunan Mobile has taken an active approach, demonstrating courage in overcoming these challenges. By introducing new technologies and products, they have developed innovative methods and experiences, which helped reduce construction difficulties, accelerate progress, and lower costs.
Macro base station construction has seen significant innovation, particularly in the outdoor antenna feeder system. The TD base station uses a smart antenna with a wide panel, which requires more rooftop space and raises concerns among property owners regarding radiation. This makes it challenging to find suitable locations for TD base stations. To address this, Hunan Mobile collaborated with urban management and garden departments, using streetlight pole base stations and beautified tree-mounted base stations to improve coverage and speed up the construction process. Testing confirmed that the coverage performance was excellent.
Another key innovation is the use of a new feeder connector box. Since TD base stations use an eight-element smart antenna, each sector requires 18 feeder connectors. Traditional waterproofing methods were time-consuming and unattractive, taking about two hours per sector. To solve this, Hunan Mobile introduced a feeder connector box, which can be installed in just 20 minutes per sector. The box uses "super gel" technology, ensuring effective waterproofing while improving efficiency and ease of future maintenance.
In indoor coverage scenarios, traditional fiber optic connections between BBU and RRU units had limitations in terms of mechanical properties and deployment time. For tower-based installations, multiple cables were often needed, increasing complexity and affecting progress. Moreover, harsh environments could lead to fiber breaks or high optical loss, delaying station activation. To address this, Hunan Mobile implemented a node-distributed optical cable solution. This includes fiber connector boxes, multi-core dry cables, and pigtails, allowing efficient deployment without wire racks. It enables quick troubleshooting and reduces maintenance effort.
Additionally, the BBU+RRU distributed architecture increases signal transmission distance, reducing network costs and saving on feeders. However, when RRUs are placed far from the equipment room, long-distance power supply leads to voltage drop and high losses. To resolve this, Hunan Mobile used the integrated small switching power supply ZXDU58, which ensures stable power for RRU devices, even in harsh outdoor conditions. The system supports centralized monitoring, battery management, and advanced rectifier technology, meeting the needs of various communication equipment.
In microwave remote station construction, traditional optical fiber methods struggled to keep up with the rapid development of 3G networks. The microwave remote system offers a solution by transmitting RF signals through microwave links, reducing site selection challenges and accelerating deployment. The system consists of MAU, MTU, and MRU units, enabling efficient signal transmission and improved network quality. Hunan Mobile's moderate adoption of this technology has enhanced user experience and contributed to building a high-quality TD network.