Method and radio node for handling CSI reporting
US9680581B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Aug 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0035
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Separate aperiodic channel state information (CSI) reports are handled for static subframe(s), in which the direction of signal transmission is fixed, and flexible subframe(s), in which the direction of signal transmission is variable. A method by a UE includes receiving a trigger for an aperiodic CSI report as part of an uplink (UL) grant from a radio node in a static downlink (DL) subframe, where the trigger indicates a CSI subframe set, out of at least two alternative CSI subframe sets. An aperiodic CSI measurement is performed for a CSI reference resource in the indicated CSI subframe set, and the result of the CSI measurement is reported to the radio node. One of the at least two alternative CSI subframe sets relates to the one or more static subframes, and another one of the at least two alternative CSI subframe sets relates to the one or more flexible subframes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.