Patent ID: 8825069

Claim:
A method for configuring a user equipment in a cellular wireless network, the method comprising: receiving, at the user equipment, control information regarding one or more of a plurality of channel-state information (CSI) reference signals, said one or more of the plurality of CSI reference signals being receivable by the user equipment from one or more of a plurality of antenna ports that form part of the cellular wireless network, the plurality of CSI reference signals being associated with corresponding antenna ports, the control information indicating which of the plurality of antenna ports are transmitting CSI reference signals that are to be used as reference and being received over a radio communications downlink from a node in the cellular wireless network, the control information further indicating which of the plurality of CSI reference signals are to be used as a reference signal set for use in configuration of the user equipment; and configuring, at the user equipment, estimation of one or more radio communication channels based on the received control information regarding the one or more of the plurality of CSI reference signals, wherein channel statistics associated with the reference signal set are used to estimate channel characteristics for a demodulation process that uses demodulation (DM) reference signals.