Method for Improving Multiuser MIMO Downlink Transmissions
AssigneeNEC Laboratories America, Inc.
InventorsGuosen Yue, Narayan Prasad, Meilong Jiang, Mohammad A. Khojastepour, Sampath Rangarajan
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Abstract
A method for improving multiple-input multiple-output MIMO downlink transmissions includes obtaining a channel state information CSI report including preferred matrix index PMI for precoding, channel quality index CQI and rank index RI at a base station from user terminals through a channel feedback; applying selectively a signal-to-interference-plus-noise-ratio SINR offset to a SINR of said CSI report; applying selectively a rate matching responsive to SINR offset or the CSI report; and controlling or adjusting the SINR offset.
Claims14
A method for improving multiple-input multiple-output MIMO downlink transmissions, comprising the steps of:
- obtaining a channel state information CSI report including preferred matrix index PMI for precoding, channel quality index CQI and rank index RI at a base station from user terminals through a channel feedback;
- applying selectively a signal-to-interference-plus-noise-ratio SINR offset to an SINR of said CSI report;
- applying selectively a rate matching responsive to SINR offset or said CSI report;
- controlling or adjusting said SINR offset.
Dependencies are inferred from the claim text.