CPC H04L 5/0048 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0051 (2013.01); H04W 4/70 (2018.02)] | 18 Claims |
1. A method in a base station, comprising:
configuring User Equipment (UE)-specific Reference Signal (UE-RS) corresponding to a set of antenna ports in two or more groups of Orthogonal Frequency Division Multiplexing (OFDM) symbols on a short Physical Downlink Sharing CHannel (sPDSCH), wherein:
indices of subcarriers in frequency domain used for UE-RS transmission are fully different between at least two consecutive groups of OFDM symbols in time domain; and
short Transmission Time Intervals (sTTIs) in the time domain used for UE-RS transmission are different between the at least two consecutive groups of OFDM symbols; and
transmitting the UE-RS to a user equipment.
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