Baker Botts, LLP
Signaling adapted CSI-RS periodicities in active antenna systems
A method in a network node is disclosed. The method comprises grouping a plurality of antenna ports corresponding to a plurality of channel state information reference signals (CSI-RS) into at least a first CSI-RS antenna port group and a second CSI-RS antenna port group, and determining, based at least in part on one or more criteria, a first transmission periodicity for the first CSI-RS antenna port group and a second transmission periodicity for the second CSI-RS antenna port group. The method further comprises transmitting, to one or more user equipment, the CSI-RS corresponding to the antenna ports in the first CSI-RS antenna port group according to the determined first transmission periodicity, and transmitting, to the one or more user equipment, the CSI-RS corresponding to the antenna ports in the second CSI-RS antenna port group according to the determined second transmission periodicity.
Telefonaktiebolaget LM Ericsson (publ)
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inventional inventional inventional additional inventional inventional inventional inventional
Sairamesh Muhammad Mattias Mark
Nammi Kazmi Frenne Harrison