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Thursday, June 17, 2021

Home 5G knowledge What is Dynamic Spectrum Sharing (DSS) in 5G?

What is Dynamic Spectrum Sharing (DSS) in 5G?


My friend: Hi Ibrahim, I have a question.

Me: Go ahead.

My friend: What is DSS in 5G?

Me: It is a new technology to allow both 4G and 5G to share the same spectrum and this can make the 5G deployment faster as simply 5G will share the same antenna, RF units and spectrum of 4G, and then using a SW upgrade to the existing 4G equipment, 5G is on air and so resources can be allocated to 4G and 5G based on the traffic need in a dynamic way.

My friend: But, is there any limitation here?

Me: Actually, you should expect that as spectrum is shared between 4G and 5G, so this spectrum should be already used for 4G and so DSS will introduce 5G to the existing 4G bands only which is normally below 3GHz, that’s why 5G coverage can be improved if DSS is implemented specially for low bands below 1GHz. Also, as both technologies will share the same spectrum, so each technology will affect the other one by its control channels and reference signals which will reduce the available capacity for data traffic in both 4G and 5G, however currently as 5G traffic share is low compared to 4G, so we can use DSS.

My friend: Thanks a lot. You made it clear.

Me: You are welcome.

Please share arround you to clear it for everyone, and have a look to our last articles

Source: Ibrahim Sayed

Linkedin Profile: https://www.linkedin.com/in/ibrahim-sayed-88a7747-5g/


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