Indication of cell mode and CSI feedback rules for cell on-off procedure
US9674727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Jun 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and devices are described for dynamic cell mode indication and reporting channel and interference feedback for dormant cells in a carrier aggregation environment. Indicators of cell mode for one or more secondary cells are sent using a transmission mechanism and may configure active or dormant sub-periods within the indicated periods. Indicators of cell mode for a secondary cell may be transmitted on a carrier of the primary cell, or the indicators may be transmitted on carriers of the secondary cell. Dormancy may also be indicated by the presence or absence of a cell mode indicator for predetermined time periods. When CSI measurements occur for a carrier of a dormant cell, the UE may report CSI for the dormant periods, suppress CSI reporting for the dormant periods, adjust a reporting frequency for the dormant periods, or report some types of CSI and not others for the dormant periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.