A method for performing a handover in a heterogeneous wireless network, HetNet, comprising: sending CSI reference signals from an anchor serving cell (102, 104) to a user equipment; receiving, at the anchor serving cell (102, 104) in the HetNet, channel measurement reports comprising channel measurements made by the user equipment for a plurality of cells; sending, based on the channel measurements, a transmission point change request for the user equipment, from the anchor serving cell (102, 104) to a target transmission point (106, 108, 110), wherein the target transmission point (106, 108, 110) is located in one of the plurality of cells; after receiving by the anchor serving cell a transmission point change request acknowledgement from the target transmission point, sending a transmission point change indicator from the anchor serving cell (102, 104) to the user equipment to indicate the change in transmission point with which the user equipment will communicate via an air interface; receiving uplink packets, from the user equipment, at the anchor serving cell (102, 104) via the target transmission point (106, 108, 110), wherein the uplink packets are sent from the user equipment to the target transmission point (106, 108, 110) via the air interface and forwarded from the target transmission point (106, 108, 110) to the anchor serving cell (102, 104); and sending downlink packets from the anchor serving cell (102, 104) to the target transmission point (106, 108, 110) for transmission to the user equipment via the air interface; characterized by: the anchor serving cell initializing a scrambling sequence of CSI reference signals with a user equipment-specific RRC configured parameter and sending the CSI reference signals scrambled with the scrambling sequence to the user equipment, sending at least one of a master information block and a system information block from the anchor serving cell (102, 104) to the user equipment via the target transmission point (106, 108, 110) to avoid performing radio resource reconfiguration at the user equipment when a change in transmission point from the anchor serving cell (102, 104) to the target transmission point (106, 108, 110) has occurred, and wherein the channel measurement reports for the plurality of cells are made by the user equipment using the CSI reference signals that are scrambled with the scrambling sequence initialized with the RRC configured parameter. sending CSI reference signals from an anchor serving cell (102, 104) to a user equipment; receiving, at the anchor serving cell (102, 104) in the HetNet, channel measurement reports comprising channel measurements made by the user equipment for a plurality of cells; sending, based on the channel measurements, a transmission point change request for the user equipment, from the anchor serving cell (102, 104) to a target transmission point (106, 108, 110), wherein the target transmission point (106, 108, 110) is located in one of the plurality of cells; after receiving by the anchor serving cell a transmission point change request acknowledgement from the target transmission point, sending a transmission point change indicator from the anchor serving cell (102, 104) to the user equipment to indicate the change in transmission point with which the user equipment will communicate via an air interface; receiving uplink packets, from the user equipment, at the anchor serving cell (102, 104) via the target transmission point (106, 108, 110), wherein the uplink packets are sent from the user equipment to the target transmission point (106, 108, 110) via the air interface and forwarded from the target transmission point (106, 108, 110) to the anchor serving cell (102, 104); and sending downlink packets from the anchor serving cell (102, 104) to the target transmission point (106, 108, 110) for transmission to the user equipment via the air interface; characterized by: the anchor serving cell initializing a scrambling sequence of CSI reference signals with a user equipment-specific RRC configured parameter and sending the CSI reference signals scrambled with the scrambling sequence to the user equipment, sending at least one of a master information block and a system information block from the anchor serving cell (102, 104) to the user equipment via the target transmission point (106, 108, 110) to avoid performing radio resource reconfiguration at the user equipment when a change in transmission point from the anchor serving cell (102, 104) to the target transmission point (106, 108, 110) has occurred, and wherein the channel measurement reports for the plurality of cells are made by the user equipment using the CSI reference signals that are scrambled with the scrambling sequence initialized with the RRC configured parameter. the anchor serving cell initializing a scrambling sequence of CSI reference signals with a user equipment-specific RRC configured parameter and sending the CSI reference signals scrambled with the scrambling sequence to the user equipment, sending at least one of a master information block and a system information block from the anchor serving cell (102, 104) to the user equipment via the target transmission point (106, 108, 110) to avoid performing radio resource reconfiguration at the user equipment when a change in transmission point from the anchor serving cell (102, 104) to the target transmission point (106, 108, 110) has occurred, and wherein the channel measurement reports for the plurality of cells are made by the user equipment using the CSI reference signals that are scrambled with the scrambling sequence initialized with the RRC configured parameter.