Beam combining based channel state information (CSI) feedback
US11303340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0634
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for channel state information (CSI) reporting in a 5G network, the processing circuitry is to decode a radio resource control (RRC) configuration message, the RRC configuration message including first configuration information to configure determination of channel quality information (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI) for the CSI reporting. Second configuration information is decoded to configure codebook parameters for a high spatial resolution codebook associated with the PMI. A precoding matrix is determined based on the first configuration information, where a number of coefficients in at least one coefficient vector of the precoding matrix is configured using the second configuration information. CSI is encoded for transmission to a base station, the CSI including the RI and the PMI associated with the determined precoding matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.