Achieving wireless networks by saving network energy

For the network environment, we need the same protection as our living environment. We also need a green environment. Here we will show you how to change green energy.

The environment needs to be protected and the energy for life needs to be frugal. The same is true for networks. Although the development of wireless networks has brought huge benefits to humans, the consumption of network energy is also a huge problem. It is necessary to create a green wireless network, which will be described in detail below.

The popularity of mobile communication has led to the further expansion of mobile communication networks, especially the continuous expansion of wireless network coverage. According to incomplete statistics, currently, only three major operators in China have built around 0.7 million wireless base station systems. The expansion of the network scale has made the energy consumption of mobile communication networks more and more important. According to the energy consumption distribution of the entire mobile communication network equipment, the energy consumption of base station equipment occupies a majority. Statistics show that the energy consumption of wireless networks accounts for more than 80% of the energy consumption of the whole network. Therefore, how to reduce the energy consumption of wireless networks has become an increasingly urgent topic. Creating a green wireless network has become our new goal.

To reduce energy consumption, we should first consider reducing the power consumption of wireless network devices and ancillary equipment. In this regard, related equipment manufacturers and research units have done a lot of fruitful work, he achieved good results. According to statistics, the power consumption of communication devices with the same performance or capacity is reduced by 60% to 10 years ago ~ 80%. However, because the technologies and components used are different, the power consumption of communication devices with similar performance or capacity varies greatly from different manufacturers.

Air conditioners consume a large amount of energy in the communication system of base stations. Therefore, some new technologies are adopted, including comprehensive power-saving technology, fresh air energy-saving system, heat exchange system, and wind-solar complementary system, are new energy-saving products that can be considered. The principle of the fresh air energy-saving system is to introduce the fresh air that meets the Air Quality Requirements of the data room to the communication room through the fresh air energy-saving device when the outdoor air temperature and humidity are lower than the environmental standard requirements of the data room, directly performing heat exchange with the hot air in the data room or using a heat exchange board can reduce the ambient temperature of the data room to meet the environmental standards of the data room, thus saving the refrigerating capacity of the air conditioner and saving power. At present, some northern units have carried out pilot projects on fresh air energy-saving technologies. The tested power-saving effect is between 20% and ~ In the range of 30%.

Create a green wireless network 1

Due to the characteristics of mobile communication, the distribution of users and business applications is uneven. Operators must construct Networks Based on the distribution data of users and business applications. In areas with insufficient capacity, the system capacity is increased to cover areas with limited coverage for corresponding coverage and blind population. The rational application of some low-power and high-efficiency base stations and supporting equipment will play a very important role in saving energy and reducing consumption throughout the network. In addition, device configurations can be reasonably set based on network operation data to reduce the power consumption of base station systems.

At the same time, reasonable application of energy saving and consumption reduction solutions for network construction can effectively reduce energy consumption across the network. Because there are multiple solutions for a specific scenario. If energy saving and consumption reduction are taken into account, they will be different. For example, to solve the coverage problem in a region with a small amount of business, you can use a base station or a direct station. the power consumption of the direct station equipment is low, and the power supply, air conditioning, and other ancillary equipment are not required, obviously, the application of direct release stations is more energy-saving and consumption-reducing.

Create a green Wireless Network 2

Applications of new technologies and energy-saving devices and solutions. During network construction, operators adopt new energy-saving technologies and products to reduce the energy consumption produced by devices. Through technical transformation, energy-saving products can be used to save energy. Special attention should be paid to the power consumption of equipment in terms of equipment usage, because even for devices of the same type, different companies adopt different technologies in design and components used in manufacturing, even similar communication devices have different power consumption.

In recent years, new BBU + RRU technologies have emerged in the Development of base station equipment. The introduction of the baseband pool and carrier frequency pool concepts has greatly reduced the environment requirements of devices and further reduced the power consumption of new devices, these will promote the system's energy saving and consumption reduction.

Create a green wireless network 3

For specific project implementation, the builder should follow various characteristics and requirements in detail, each equipment has a reasonable use method. Recently, BBU + RRU base stations have been widely used in the current network. In actual projects, RRU is usually used outdoors. If RRU is put indoors, a feeder of about 30 meters must be added, in this way, the feeder loss is increased by about 2 dB, which is not conducive to energy saving and consumption reduction. If the length of the feeder is more than 50 meters, the loss of the feeder should be 3 dB. This will greatly reduce the utilization rate of the equipment, which is also not conducive to energy saving and consumption reduction.

Focusing on project quality and details management, strengthening project construction management, and strengthening project quality supervision can further improve the performance of the base station system. Good engineering quality not only improves the equipment usage status, but also reduces system loss. For example, in the actual project, the loss of the feeder joints can be up to 0.5 DBs. The reasonable cabling and layout of the feeder can reduce the actual loss of the feeder to a certain extent. Therefore, strengthening detailed management of engineering construction will make the system performance better, which will be conducive to energy saving and consumption reduction of the system. In addition, the saving of consumables and auxiliary materials will also achieve total energy saving and consumption reduction.

Create a green wireless network 4

The traditional network construction mode should be changed. The refined network construction scheme can promote energy conservation and reduce consumption. After years of network construction by operators, the coverage of wireless networks has become increasingly perfect, and there are not many blind spots in large coverage areas, more problems need to be solved: small pieces of signal are weak (indoors) or signal interference (high-rise) areas. In this case, if the traditional network construction mode is used, increasing the number of base stations may cause excessive coverage in other regions or unnecessary interference, at the same time, such construction will increase construction and maintenance costs to a certain extent, resulting in a waste of resources. How can we more accurately cover these small areas, it is also a new requirement for energy conservation and consumption reduction in network construction.

A new energy-saving and consumption-reducing refined network construction scheme comes from this. When the network construction encounters a small signal weak area and a blind zone needs to be covered, we can use a different approach to bottom-up network coverage, which is based on the individual needs of users, use a micro-area coverage solution that focuses on applications of micro-base stations, micro-power signal enhancement devices, and other micro-power and low-radiation devices to precisely cover small-area networks, in this way, the small area to be covered will be covered in the most accurate way, while saving the waste of resources in other network construction solutions. Due to the low power required by the equipment, some models of such equipment can even use USB interfaces of computers for power supply. Such a solution is of course a relatively economical network construction solution.

In recent years, operators have continued to expand their mobile wireless networks and the scale of wireless networks has continued to expand. Each year, operators spend a considerable amount of energy on their resources and are gradually increasing. Therefore, in network construction, energy conservation and consumption reduction should be put at the top. for operators, energy conservation and consumption reduction not only consume less social resources, but also, good energy-saving and consumption-reducing solutions also save a lot of construction and O & M funds for operators and make positive contributions to achieving profit targets for operators.

With the continuous expansion of mobile communication wireless networks and the advancement of network technology, network construction in different periods may vary. To do a good job in energy conservation and consumption reduction, we must start from network construction, refined network construction helps the system save energy and reduce consumption. Energy saving and consumption reduction are not only the common responsibilities of the whole society, but also the energy saving goal of mobile network construction. This requires the joint efforts of all aspects involved in network construction. In network construction, we should also constantly strengthen our awareness of conservation and gradually reduce basic energy consumption. The task we are facing is still very heavy, and there are still a lot of work that we need to explore.