Tuesday, 13 February 2024

Deutsche Telekom's Mini-Mast a.k.a. “Cell Tower To Go”

Last year Deutsche Telekom developed a mini-mast (or as they call it, ultra-mobile mast) prototype called "cell-tower-to-go". Think of this as Cell On Wheel (COW) with no wheels. In a recent press release they indicated that it has already become a customer favourite within a short space of time. 

Around a dozen companies are testing the flexible solution so far. "With our call to test our ultra-mobile cell tower, we have raised great interest among companies from a wide range of industries. This high demand shows: The need for a flexible mobile communications solution is there - also among business customers. This has strengthened our decision to offer this innovation 'made by Telekom' commercially in the future," says Klaus Werner, Managing Director Business Customers at Telekom Deutschland.

One of the first testers is the leading Swiss construction and real estate service provider Implenia. The company will provide its bridge construction site in Bad Lobenstein (Thuringia, Germany) with 5G and 4G/LTE during the two-year construction phase. The construction site in the valley could not be reached by the conventional mobile phone masts in the surrounding area. However, due to the high degree of digitalization of the construction site, a fast and reliable mobile network connection is essential. 

Telekom's cell-tower-to-go provides high-performance coverage at the construction site. Smartphones and computers then use fast mobile connections via frequencies in the 2.6 and 3.6 gigahertz range. For Implenia, this basic mobile communications coverage is also an ideal basis for IoT applications. The company uses them to optimize processes and material flows on the construction site. The easy-to-connect mast is linked to the network on the bridge construction site via fiber optics. However, the connection via satellite will also be tested in a next step. This will provide additional flexibility and an even faster connection to the network. 

The micro-container is also making a big impact at the delivery service flaschenpost SE. The food and beverage delivery service from Münster, Germany, uses the additional 5G supply within a logistics hall. This speeds up its operational processes.

The special feature of the ultra-mobile mast is that it is significantly smaller, lighter and more flexible than previous solutions. The entire radio technology fits into a compact micro-container (length: 1.6 meters, width: 2 meters, height: 2.6 meters). This makes the mobile mast space-saving and easy to transport. It can be set up by one person in less than an hour - and is immediately ready for use. The micro container can be connected to a local power supply or operated using any other mobile power source. It can be connected to the data network via fiber optics or radio relay.  

These advantages make the mobile “dwarf” not only the first choice for fast or temporary coverage for business customers. The use of mobile masts also provides rapid assistance in disaster areas thanks to their enormous flexibility.

Deutsche Telekom will launch a commercial offer for the use of ultra-mobile transmission masts in spring 2024.

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Friday, 2 February 2024

NTT Docomo's Cell On Wheels (COW)

Yagisawa Dam (矢木沢ダム) is a dam in the Gunma Prefecture of Japan; it supports a 240 MW hydroelectric power station. 

Between May and June, test release of water is done to check that the emergency spillway gate is working fine. On these occasions, many tourists visit to experience this. There may be mobile coverage there but there isn't capacity to support large number of people. 

To alleviate the network congestion, many Japanese networks send their Cell On Wheels' (COWs) to handle the traffic. NTT Docomo's COW is as shown above.

Another COW with mmWave radios is shown above. 

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