Patent ID: 8140105
Filing Date: 2012-03-20
Classification: H04L,H04W

Abstract:
1. A method for controlling output power and reducing interference in a radio communications network, where data transmitted over a radio interface is coded and transmitted in radio blocks, the data passing a buffer, and where the method comprises: determining a recommended Modulation and Coding Scheme level (MCS level), based on at least one radio quality measurement; analyzing buffer characteristics and/or radio block usage of transmission radio blocks to determine if there is a preferred MCS level compared to the recommended MCS level; and decreasing, when there is a preferred MCS level, the recommended MCS level to the preferred MCS level, and in relation to decreasing the MCS level decreasing an output power according to a predefined down regulation scheme; wherein the predefined down regulation scheme is performed in predefined steps per measurement period, wherein the measurement period is long enough to receive, at a transmitting first network node, feed-back information from a responding second network node, the response including the recommended MCS level, and continuing the predefined down regulation scheme until the response includes a recommended MCS level that is equal to the preferred MCS level.