Patent ID: 9723625
Date: 2017-08-01
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method comprising: managing a downlink transmission in a Multi User-Multiple Input Multiple Output MU-MIMO system, the MU-MIMO system comprising a base station, and a set of remote radio units connected to the base station, the method comprising the following acts performed by the base station: obtaining large scale fading data related to a large scale fading over uplink transmission associated with a user equipment (UE), the act of obtaining comprising sorting remote radio units antennas sensed by the user equipment into two sets Di and Ui which are expressed as:  where l generating a UE-specific channel vector by using the large scale fading data, and scheduling the downlink transmission in the MU-MIMO system by using the UE-specific channel vector.