Method for Determining White Space Interference Margin

Abstract

The present disclosure relates to a network node of a wireless network, and a related method for determining the margin of interference level. The network node controls at least one white space device, and the interference level is associated with the critical position and the channel that can be used for the secondary use of at least one white space device. The method comprises the following steps: (a) initialization margin (410) ;(b) based on the interference level of the margin, determines the transmit power level of at least one blank space device when transmitted on a channel available for secondary use (420) ;(c) based on the determined transmit power level and channel model uncertainty calculates the probability of the total interference from at least one blank space device at a critical position exceeding the interference level (430); and (d) if the calculated probability falls outside the probability interval, Then modify the margin of the interference level (440). The method also includes iterative steps (b), (c), and (d) until the calculated probability falls within the probability interval.

Description

technical field [0001] The present disclosure relates to the field of power allocation in white space operation. More specifically, the present disclosure relates to a network node controlling at least one white space device, and a method of determining a margin for an interference level associated with a critical location and a channel available for secondary use by the at least one white space device. Background technique [0002] Spectrum scarcity is a problem that has been identified in regulatory frequency allocation maps for some time. All potentially interesting frequency bands for mobile communications have been allocated to various services. However, in order to cope with the exponentially fast development of mobile broadband, additional spectrum for mobile broadband is required. At the same time, traditional approaches to spectrum management have been recognized as being too slow to adapt to sometimes rapidly changing economic and technological needs, meaning tha...

AI Technical Summary

Problems solved by technology

if the allocation of transmit power to the WSD in the secondary system is sub-optimal, the WSD may not be able to fully exploit the possibilities it actually has given the jamming performance of the primary system

Furthermore, when for example some WSDs are cut off or moved to a location farther away from the main system that needs to be protected, the master node will not be able to adapt the transmit power of the WSDs

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