HOME / ericsson and powerlight demonstrate wireless powered 5g base station
Therefore, in 5G networks, high-frequency resources will no longer use macro base stations, micro-cells become the mainstream, and the small base stations will be used as the basic unit for ultra-intensive networking, that is, small base stations dense deployment.
Every 5G NR base station or UE manufacturer must pass all the necessary tests before releasing the products to market. Otherwise, the products do not have 3GPP-compliant recognition and are not usable for network deployment. We start with a quick overview of 3GPP base station conformance testing requirements.
According to the principle of mobile communication, the transmission distance and frequency of the signal are inversely proportional when the power ratio of receiving and transmitting is constant. The frequencies of 4G base stations are generally from 2.3GHz to 2.6GHz, and the frequencies of 5G high-frequency base stations are above 28GHz.
The radius of coverage area of 5G high-frequency base stations will be less than one-tenth of that of 4G base stations, and the coverage area of 5G high-frequency base stations will be less than one percent of that of 4G base stations. The deployment of macro base stations is difficult and the site resources are not easy to obtain.
5G networks divide coverage areas into smaller zones called cells, enabling devices to connect to local base stations via radio. Each station connects to the broader telephone network and the Internet through high-speed optical fiber or wireless backhaul.
5G base station chips must be compatible with 4G, 5G, and future 6G networks, supporting multi-band and technology standard switching to ensure seamless connection between generations of networks.
1. Introduction 5G base station (BS), as an important electrical load, has been growing rapidly in the number and density to cope with the exponential growth of mobile data traffic . It is predicted that by 2025, there will be about 13.1 million BSs in the world, and the BS energy consumption will reach 200 billion kWh .
The 5G BS power consumption mainly comes from the active antenna unit (AAU) and the base band unit (BBU), which respectively constitute BS dynamic and static power consumption. The AAU power consumption changes positively with the fluctuation of communication traffic, while the BBU power consumption remains basically unchanged, , .
Some studies optimize the location of BSs in wireless communication networks through exact solution approaches such as mixed integer linear programs (MILP) and algorithmic approaches, , .
The selection of channels for base stations significantly influences several key performance factors: A proper channel selection can vastly improve data transfer rates and reliability. By choosing channels with less congestion or interference, base stations can provide a stable connection for their users.
When selecting channels for base stations, several critical factors must be considered. These include frequency bands, regulatory requirements, interference potential, and capacity needs. Understanding the unique characteristics of the frequency bands can help determine which channels are most suitable for your application.
Channel bandwidth has a significant impact on base station performance, dictating the amount of data that can be transmitted simultaneously. Wider channels generally allow for higher throughput and improved speed, making them ideal for data-intensive applications.
Iran's Communications Regulatory Authority (CRA) recently announced plans to award 5G licences in the 3.5GHz band, while rival MNO Mobile Communication Company of Iran (MCI) is expected to announce its own commercial 5G launch in the near future.
State-owned MCI has expanded its 5G coverage with a launch on the island of Kish, off the coast of southern Iran. The launch coincided with the KITEX 2022 International Exhibition which has been taking place this week on the island. MCI first introduced 5G services in Tehran in March 2021.
In the National Conference on Iranian 5G Telecommunications, Irancell CEO declared that the number of the company's 5G sites will double by the end of 2024.
Operators have invested in broadening the reach of their LTE networks, which has increased network capacity and improved the quality of mobile broadband services. The country is also looking to 5G, with services having been launched by MCI and MTN Irancell in early 2021.
The energy consumption of the fifth generation (5G) of mobile networks is one of the major concerns of the telecom industry. However, there is not currently an accurate and tractable approach to evaluate 5G base stations' (BSs') power consumption.
The power consumption of a single 5G station is 2.5 to 3.5 times higher than that of a single 4G station. The main factor behind this increase in 5G power consumption is the high power usage of the active antenna unit (AAU). Under a full workload, a single station uses nearly 3700W.
Although the absolute value of the power consumption of 5G base stations is increasing, their energy efficiency ratio is much lower than that of 4G stations. In other words, with the same power consumption, the network capacity of 5G will be as dozens of times larger than 4G, so the power consumption per bit is sharply reduced.
The main factor behind this increase in 5G power consumption is the high power usage of the active antenna unit (AAU). Under a full workload, a single station uses nearly 3700W. This necessitates a number of updates to existing networks, such as more powerful supplies and increased performance output from supporting facilities.
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