Enhancement to multi-user MIMO by channel state information reporting
US12237884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2022 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Oct 21, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/1273
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and systems are for configuring multi-user multiple-input multiple output (MU-MIMO) operation by a base station and a plurality of UEs include requesting sounding reference signals (SRS) or channel state information (CSI) data from each UE of the plurality; configuring, based on the SRS or CSI data from each UE, a precoder matrix, the precoder matrix allocating a plurality of precoded CSI-reference signal (CSI-RS) resources for each UE; scheduling, for each UE, the precoded CSI-RS resources; receiving, from each UE, a CQI report that is based on the precoded CSI-RS resources received by that respective UE; generating a CQI matrix from the CQI reports of each UE; selecting a subset of UEs from the plurality based on the CQI matrix; and scheduling DL resources for the subset of UEs, the DL resources including reference signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.