Blog & Insights

Comprehensive research, architectural chronicles, and practical guides.

This is how 4G and 5G work in Sweden

The 4G and 5G networks in Sweden are radio-based communication systems where mobile phones and other terminals connect to base stations which are in turn connected to the operators' transport and core networks. 4G is mainly based on LTE according to 3GPP specifications, while 5G includes both 5G radio according to the NR standard and new functions in the core network. Range, capacity and response time are affected, among other things, by frequency band, bandwidth, antenna technology, load, terrain and building materials. In Sweden, frequency use is regulated by the Swedish Post and Telecommunications Board within the framework of national legislation and European harmonisation.

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Safe use of public Wi‑Fi

Public wireless networks provide Internet access in environments such as hotels, libraries, train stations, airports and cafes, but involve special risks because the user often lacks control over the network's configuration and legitimacy. Security depends on multiple layers: proper identification of the network, device-to-service encryption, updated software, strong authentication, and limited exposure of local resources. WPA2 or WPA3 primarily protects the wireless link, while HTTPS, TLS, and possibly a trusted virtual private network can provide additional protection. A safe usage method must simultaneously consider privacy, malware, phishing, automatic connection and the risk of sensitive data being disclosed in an inappropriate environment.

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