Patent ID: 11722970

Abstract:
A method and apparatus is provided for determining a per carrier additional maximum power reduction needed to meet emission requirements for dual carrier operation of adjacent carriers. A per carrier allowed additional maximum power reduction for a worst case allocation is determined for the dual carrier operation of the adjacent carriers of the different radio access technologies in absence of the shared scheduling information. The determination for each of the carriers for use with the different radio access technologies includes determining a total power reduction allowed for meeting emission requirements for each of one or more respective allocation ratios, and determining a fraction of a total power allocated to the carrier for each of one or more respective allocation ratios. Where for each of the one or more respective allocation ratios, a per carrier additional power reduction is determined as a sum of the total power reduction allowed for meeting emission requirements and a negative of ten times a base ten logarithm of the fraction of the total power allocated to the carrier. The per carrier additional power reduction of the one or more respective allocations are compared, and the per carrier additional power reduction of the one or more respective allocation ratios, which has a highest value, is selected as the worst case per carrier additional maximum power reduction for each of the associated one of the different radio access technologies.