RESOURCE SCHEDULING FOR DOWNLINK TRANSMISSIONS

摘要

A method performed in a network node, of scheduling resources for downlink transmissions to a user equipment, UE, in a heterogeneous wireless communication network including macro nodes and Low Power Nodes, LPNs, in a combined cell deployment, wherein each macro node shares a cell identity with one or more LPNs. The method comprises configuring two or more pilot signals for probing the UE, wherein each pilot signal is configured to be distinguishable from configured one or more other pilot signals. A resource control, RRC, signal is sent to the UE, the RRC signal including information on the configuration of the two or more pilot signals. The network node controls transmission of the two or more pilot signals, wherein transmission of one pilot signal is originated from the macro node and transmission of one or more further pilot signals is originated from respective one or more LPNs.

主权项

1. A method, performed in a network node, of scheduling resources for downlink transmissions to a user equipment, UE, in a heterogeneous wireless communication network including macro nodes and Low Power Nodes, LPNs, in a combined cell deployment, wherein each macro node shares a cell identity with one or more LPNs, the method comprising:
configuring two or more pilot signals for probing the UE, wherein each pilot signal is configured to be distinguishable from one or more other configured pilot signals; sending a radio resource control, RRC, signal to the UE including information on the configuration of the two or more pilot signals; controlling transmission of the two or more pilot signals, wherein transmission of one pilot signal is originated from the macro node and transmission of one or more further pilot signals is originated from respective one or more LPNs; receiving a feedback signal, wherein the feedback signal is based on channel information obtained by the UE for each pilot signal; and selecting one or more LPNs for downlink transmission based on the received feedback signal and UE specific information accessible in the network node.