Nowadays, with the new mobile communication technologies, the overlay network coexists with the capacity network of the GSM/TDS/LTE networks. In additional, there is a tidal effect on traffic volume, thus resulting in a waste of power energy. For this, the present project has developed a multi-network cooperative energy-saving system (MCES) to implement the execution of multi-network standard cooperative assessment and energy-saving scheme. Today, more than 20,000 cells in Shanghai have deployed such a system, which has achieved an annual power saving of 570,000 kWh. This system innovatively establishes an elastic energy consumption application mechanism based on the original mobile base station infrastructure, greatly reducing the power consumption of the base station during the idle time and ensuring a sustainable production mode. At the same time, the deployment of this system is relatively simple; it can be deployed in cities with both GSM network and LTE network. A set of two servers is able to implement the execution of energy-saving schemes on 20,000 cells. In such a system, the output-to-input ratio is over 500%, the subsequent maintenance is simple, and the economic benefits and effects are significant.

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• Shanghai, China

• Youth
• Older persons
• Women
• People with disabilities
• The unemployed
• The poor
• Remote and rural communities

As long as there are overlapping on the coverage of multiple networks, a multi-network cooperative energy-saving system can be deployed. Such a model is customized for China Mobile's existing network deployment. The principle thereof is based on the core algorithm of overlapping coverage level. When the service is idle, the capacity band base stations with a certain overlapping coverage level are shut down, and the main coverage band base stations are reserved to achieve energy saving. Similarly, the GSM, TD-S, TD-LTE and other networks in the model can be replaced with CDMA, WCDMA, FDD-LTE, TDD/FDD and other networks specifically according to the coverage network standard, so that the model’s reproducibility and versatility are improved. In different countries or regions, as long as there are mobile users and multi-band, multi-standard networks, the basic conditions for deploying a multi-network collaboration model are satisfied.

The multi-network cooperative energy-saving system innovatively establishes an elastic energy consumption application mechanism based on the original mobile base station infrastructure, thus greatly reducing the power consumption of the base station during the idle time. Energy conservation and efficiently use thereof reduce carbon emissions and waste of resources directly, thereby greatly improving the environment.

Comparing with the system before the deployment, the 2G&4G power saving ratio ranges from 2.2 to 4.8%, with an estimated annual energy saving of 570,000 kWh. At the same time, as long as two servers are connected to the system, the deployment scope can be expanded by 20,000 cells, and the expansion to 100,000 cells in Shanghai can save more than 2 million kWh a year according to our estimation. The present project is benefit that the investment and construction are simple, the amount of energy savings is huge, and the economic and operational benefits are significant.