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You are here: Home / IoT / Five network terminologies to make 5G possible

Five network terminologies to make 5G possible

Last Modified: July 31, 2022 by Rajiv Leave a Comment

5G-terminologiesWe have been waiting for a magical network which can support massive data rate and low latency to satisfy every needs from mobile devices to self driving smart cars. Despite the fact that the 4th generation mobile wireless network LTE/4G hasn’t been covered around the globe, test runs and spectrum allocation for 5G has been started few years ago.

5G is the fifth generation wireless communication network that is going to be ruling our future communication. 5G networks must be equipped to handle massive data rate, scalable and secure communication. What are the top network terminologies used to make 5G a reality?

1. Millimeter waves

We have been using almost complete radio frequency spectrum below 6 GHz range today. Increasing number of devices with massive traffic requirements will limit our existing network capability soon. Increasing demand for spectrum to support future enhancements lead us to utilize spectrum above 6 GHz.

Researchers has successfully tested millimeter wave broadcasting at 73 GHz range over more than 10 KM range in Virginia few months ago. Similar tests have been carried out at 28 GHz range in New York City at shorter distance of 200 meters with low power transmitter.

Millimeter wave offers wide range of spectrum without any restriction of our conventional low frequency bands. FCC has opened another 11 GHz band for further development of 5G network and research.

2. Small Cells

Small-Cell-5G

Increased number of transmitting devices generates distortion for other neighboring devices.  Small Cell concept is another terminology to support uninterrupted network coverage where signals blocked by many obstacles like buildings, trees, vehicles or heavy machinery. It is one of the most suitable implementation for cities due to density of buildings and other terrain.

In small cell concepts, more transmitters handle the entire traffic load within a geographical area than a single transceiver. It enables the network operators to deliver quality network coverage, higher data rate and uninterrupted service.

Mobile device will automatically detect the signals and switch from one cell to another cell without any interruption. Since small cell stations cover small geographical area, it uses low power transmitting stations.

3. Massive MIMO

Massive-MIMO-5G

Massive MIMO is a transmission terminology for increasing the network capacity by adding more transmitting and receiving antennas to the system. MIMO stands for multiple input and multiple output. MIMO enable us to transmit and receive signals simultaneously through multiple antennas. It will offer many times higher data rate and network capacity.

One down side of MIMO is higher distortion caused by intermodulation due to increased signal transmission from same station.

4. Beamforming

Beamforming-5G

Beamforming is technique used in base stations to target the mobile devices for transmission. Conventional base stations will transmit signals in all directions which contribute distortion in other devices and some other operating bands.

In beamforming, base station will be able detect and locate the user and it will only transmit to the direction of the user.  Beamforming will help the network to support more devices and traffic with targeted transmission for specific users located at specific direction.

5. Full Duplex

In our early generation of mobile networks, the device will not receive any signals while transmitting and vice versa. In conventional system, only one mode will be active at a time because the system operates on only one allocated band. Otherwise two bands have to be allocated to transmit and receive simultaneously.

In full duplex mode, the network will use high speed switching system to handle simultaneous transmission with complex modulation techniques. It will help service providers to efficiently utilize expensive spectrum.

Conclusion

5G opens a world of possibilities in terms of wider spectrum, speed, low latency, scalability and security. There are many other suggested technology enhancements for further development and implementation like device to device communication and Wi-Fi offloading. 5G will play a big role in the future mobile networks and especially Internet of Things.

More reading: How 5G technology works

References: IEEE spectrum, 3GPP, Rohde&Schwarz, Ericsson.

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Filed Under: 5G, IoT, LTE

About author

I'm Rajiv, a senior application engineer with 15 years of experience in RF Test & Measurement solutions. Interested in LTE, 5G, IoT, Wireless technologies, LabVIEW and C# coding.

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