Patent ID: 9647805
Date: 2017-05-09
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for beam coordination between a first base station and a second base station, wherein: reference signals transmitted from the first base station are measured by the second base station within the area served by the second base station, at least one interfering beam transmitted from the first base station which is relevant for creating interference for the area served by the second base station is determined by the second base station based on said measured reference signals, dependent on a ranking of said at least one interfering beam which is relevant for creating interference for the area served by the second base station, a restriction of a use of at least one radio resource in the first base station in at least one ranked interfering beam is performed, and at least one user terminal served by the second base station is scheduled on at least one radio resource which is restricted in use in the first base station (M wherein the second base station temporarily stops downlink transmission on at least one subcarrier in order to receive said reference signals on said at least one subcarrier.