Wireless networks in adjacent frequency channels can interfere each other. In this report it has been
investigated how this interference can be minimized for the 2.6 GHz frequency band. The Dutch Ministry of Economic Affairs intends to issue begin 2008 spectrum licenses for this band. A good method to minimize interference is a Block Edge Mask (BEM). A BEM dictates the maximum
transmit power in the awarded frequency spectrum. In practical systems it is nearly impossible to transmit only in the awarded spectrum. A small part of the transmit power is transmitted in adjacent frequency channels and also receivers have limited channel selectivity. For this reason, a BEM not only dictates the maximum in-band transmit power, but also defines the maximum transmit power
outside the awarded frequency spectrum.
An important parameter for constructing the BEM is frequency efficiency. The 3GPP standards and
the proposals of other countries have been used as a starting point. There are two frequency bands
where spectrum licenses will be issued, 2010 to 2019.7 MHz and 2500 – 2690 MHz.
|Publisher||Ministerie van Economische Zaken|