Computer Networking › Section G · Wireless and mobile networks › Topic G.4
Cellular networks: 4G and 5G
Wi-Fi covers a building; cellular networks cover continents and keep a phone connected at motorway speed. Modern 4G and 5G networks are all-IP, so much of their design will look familiar from the rest of this course.
In this topic
- Cells, reuse and generations
- The 4G LTE architecture
- Tunnels and the radio protocol stack
- Sharing the radio: OFDMA
- Worked example: an LTE peak-rate estimate
- Attaching, sleeping and roaming
- 5G New Radio and its spectrum
- Three kinds of service, sliced
- The 5G core and what comes next
- Worked example: area capacity
- Common mistakes to avoid
- Key takeaways
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