Dynamic bandwidth sharing in 5G networks

OData support
Dr. Imre Sándor
Department of Networked Systems and Services

The amount of data transmitted by mobile devices is increasing year-by-year, and according to the forecasts it will continue to. This evolution prompts the manufacturers and the standardization bodies to involve newer and newer frequency ranges to the mobile radio transmission.

The problem is, these frequency bands are already allocated. Even if the change of these allocations is possible, the usage of these frequencies can cost a lot. Another problem is, the licensing of these bands is a lengthy process to go through before a new system can be installed. It would be advantageous to use frequencies, which are not necessary to license. This is one of the ways time and money can be spared.

Although such bands exist, they are already in use by other devices, and the interference caused by them poses a problem. Also, there are strict regulations on the coexistence with them. In order to operate efficiently here, a spectrum sharing procedure is to be implemented.

In my work I propose a procedure like this, and test it with a simulation program I have developed by myself. This procedure makes the two of today’s major technology - LTE and Wi-Fi - coexist in the 5 GHz bands in a way, where we can have advantage of both systems.


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