Patent ID: 9369915
Filing Date: 2016-06-14
CPC Classification: H04W

Claim Text:
1. A method comprising obtaining, in a network apparatus, information on a reference interference level value defined for a first cell utilizing a primary radio access technology, the reference level interference value for the first cell indicating incoming interference to the first cell by a secondary radio access technology; obtaining, in the network apparatus, information on an estimated emitted transmission power value measured for at least one second cell utilizing the secondary radio access technology; obtaining, in the network apparatus, information on an estimated inter-system interference value defined for the first cell, wherein the estimated inter-system interference value defined for the first cell is calculated by comparing the reference level interference value defined for the first cell to an interference level value defined for the first cell when the secondary radio access technology is using the shared radio spectrum block; controlling, in the network apparatus, the usage of the shared radio spectrum in the second cell based on the estimated emitted power value measured for a second cell and the estimated inter-system interference value defined for the first cell, wherein the shared radio spectrum usage in the second cell is controlled by