Protection of cell sites (4G/LTE)

June 10th, 2014, Published in Articles: EngineerIT


With the commercial introduction of UMTS technology in 2003, mobile data communication gained in importance besides voice communication. As the demand for data volumes grew, so did the global demand for bandwidth.

The increasing use of smartphones and other mobile terminal equipment has lead to a significantly higher utilisation of existing conventional mobile networks.

The motivation for mobile network operators to rely on mo­dern and innovative technology is the high investment costs for new network infrastructures and system technology as well as high maintenance and operating costs for existing cell sites. Their aim is to efficiently reduce maintenance and operating costs and to considerably increase the availability and reliability of cell sites for an ever growing number of mobile phone users.


Mobile network operators and system technology manufacturers worldwide increasingly use remote radio head/unit technology for UMTS (3G) and LTE (4G). Remote radio heads/ units (RRHs/RRUs) are a refinement of the third mobile radio generation.

Remote radio head technology is not only used for commercial mobile radio applications, but also for the digital radio systems of security authorities (BOS) such as police and emergency medical services since these systems require high reliability and availability… (more)

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