4G vs. 5G: What's the Difference?

4G versus 5G: What's the Difference?

This section discusses the differences between 4G and 5G technologies, focusing on latency, download speeds, base stations, cell density, OFDM encoding, and virtualization.

Latency and Download Speeds

• The primary difference between 4G and 5G is latency or the delay between commands and responses.

• 5G promises latency under 1 millisecond, while 4G latency ranges from 60 to 98 milliseconds.

• With lower latency in 5G comes faster potential download speeds.

• While 4G maxes out at 1 gigabit per second, 5G aims for up to 10 gigabits per second.

Base Stations

• In terms of base stations or signal transmission, 4G primarily uses large cell towers.

• On the other hand, small cell technology is used in delivering the promised speeds of 5G.

• Small cells are about the size of a pizza box and operate at high frequencies but have a smaller range.

• Experts estimate that there will be five to ten times more small cells than cell towers in a denser network.

Cell Density and OFDM Encoding

• The denser network of small cells in a 5G network allows for more users and devices with faster speeds.

• Both technologies use OFDM encoding to split wireless signals into separate channels.

• However, they use different channel sizes - with 4G using 20 MHz channels and 5G using 100 MHz to 800 MHz channels.

• The larger channels in 5G result in less signal interference and more capacity for boosting download speeds.

Virtualization

• Virtualization is an opportunity with 5G, allowing operators to deploy more software-driven networks for affordability and flexibility.

• LTE, a standard of 4G technology, offered some software systems and services to support more devices.

• However, virtualization in 5G takes it further and leads the path to network slicing.

Conclusion

This section concludes by acknowledging the bold advancements and improvements promised by 5G over 4G. It also invites viewers to explore a glossary of 5G keywords and share their thoughts on how they hope 5G will impact their business operations.

Key Takeaways

• The primary differences between 4G and 5G are latency, download speeds, base stations, cell density, OFDM encoding, and virtualization.

• 5G offers lower latency under 1 millisecond compared to the range of latency in 4G (60 to 98 milliseconds).

• Download speeds in 5G can reach up to ten times faster than those in 4G (10 gigabits per second versus a maximum of 1 gigabit per second).

• Small cell technology is used in delivering the promised speeds of 5G, resulting in denser networks with more small cells than cell towers.

• Both technologies use OFDM encoding but differ in channel sizes - with larger channels in 5G providing less signal interference and more capacity for boosting download speeds.

• Virtualization is an opportunity with both technologies but takes it further with greater affordability and flexibility in deploying software-driven networks for operators.

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