With the rapid development of mobile communication, real-time on-site multimedia communication has become a part of daily life. The introduction of new smart phones, coupled with the scale application of virtual cloud computing and mobile video services, has driven the explosive growth of mobile Internet and high-bandwidth data services. . According to statistics from Bell Labs, global mobile data traffic will increase by about 30 times in the next five years. The explosive growth of data traffic will also lead to a surge in network construction costs, which has caused operators to rethink how to build and operate mobile networks.
Small Cell effectively solves coverage and capacity
Although operators continue to increase frequency points and cell sites to cope with the surge in data traffic, under the traditional network architecture, there are many restrictions, including spectrum resources, difficult access to site properties, etc., and the network cannot handle it cost-effectively. A lot of data business. Moreover, in the edge area covered by the cell, due to the weak wireless signal and interference, the quality of service is difficult to guarantee. The traditional macro network cannot provide good indoor coverage, and the power consumption of the traditional macro station equipment cannot be energy-saving and environmentally friendly. For the large base station tower antenna, there will be visual pollution, which will bring resistance to the residents of the community. The deployment method of building a macro station has been difficult to cope with the rapidly increasing data business demand.
The Small Cell solution provides a fast and more cost-effective network expansion solution that can provide dedicated coverage and capacity for urban hotspots, suburbs, and blind spots. The small cell micro base station is an effective supplement to the macro cell network in terms of capacity and coverage, and is the main means of layered network deployment. It can effectively build a three-dimensional network and divert and absorb the traffic of the macro base station. While reducing construction costs, Small Cell can achieve both dual coverage and capacity improvements in mobile networks. According to the statistics of the consulting company, the number of Small Cell micro base stations in the world has exceeded the number of macro stations.
Bell Labs promotes product innovation
On February 7, 2011, the original technology LightRadio product solution from Bell Labs was officially released. It provides an innovative wireless network architecture. The core component of the wireless device is the Cube small cube, which integrates an innovative antenna. The vibrator, DSP digital signal processing and digital power amplifier, etc., adopt software radio technology, and can support different systems of 2G / 3G / LTE.
LightRadio wireless products help to reduce business growth in mobile operations and bring about a growing demand for the number of traditional macro base stations, creating a greener, more concise and lighter network, bringing broad benefits to operators when increasing the equivalent amount of network capacity Compared with traditional networks, it saves 50% of the cost of data transmission per bit. Compared with the traditional macro base station network, the use of Lingyun wireless micro base stations can increase the network capacity by up to 400%, reduce operating costs by 50%, and reduce energy consumption by 35%, which greatly reduces the overall operating costs of operators.
The three-dimensional networking solution based on the combination of LightRadio micro base stations and macro cells has led the next generation of new networking concepts and has been highly recognized by global mobile operators. On January 13, 2012, China Mobile and Alcatel-Lucent signed a LightRadio joint product development agreement. The two parties will work closely together to actively carry out a series of joint research and development projects, including integrated radio frequency cubes, baseband pools, and redefined wireless architecture. Promote the innovative development of TD-LTE products. On February 26, 2013, Alcatel-Lucent and China Mobile released the TD-LTE version of the micro base station LightRadio MRO (Metro Radio Outdoor) at the Barcelona Wireless Communication Conference.
In hot spots and dense urban areas, MRO micro base stations have become an economical and reliable alternative. At the same time, because the frequency bands currently used in 3G / 4G networks are generally high, it is difficult to meet the demand for deep coverage using traditional macro base station coverage mode alone. From the beginning of design, Lingyun wireless micro base station closely meets the customization needs of operators during deployment. It has the advantages of small size, high power, and convenient installation. It can help operators solve addressing difficulties, achieve rapid deployment, and provide users with Provide high-quality services.
The main features of TD-LTE 9768 MRO products are:
1. Based on LightRadio cube, integrated radio frequency and antenna, need to connect BBU module through optical fiber;
2. Transmitting power supports 2 & TImes; 5W, adopting Cube integrated active antenna mode, the transmitting efficiency will be higher;
3. Two configurations with different directional beam widths are provided to suit different deployment scenarios;
4. Small size, light weight, fanless design and low power consumption;
5. Support 2x2 MIMO, support distributed architecture, can achieve seamless switching with macro stations;
6. LightRadio supports the pole installation. It adopts the innovative Dock + RF base and radio frequency separation architecture design. The base can be installed in advance, and the radio frequency module can be quickly installed later. The base station can be opened after power-on transmission. It can even replace evolved equipment with the same security bayonet to support network upgrade and expansion.
Guangzhou Ehang Electronic Co., Ltd. , https://www.ehangmobile.com