Radio link monitoring methods for wireless systems with multiple coverage levels
US10200895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2016 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jan 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and computer program product where a user equipment, in a wireless communications system, measures downlink radio quality based on available downlink signals. The user equipment compares the measured downlink radio quality with RLM thresholds. Based on that comparison, the user equipment determines its in-sync or out-of-sync status. Prior to the measuring, the user equipment can determine the RLM thresholds based on hypothetical NPDCCH channels; can receive in-sync and out-of-sync thresholds from the base station; can receive an additional offset for in-sync and out-of-sync thresholds under enhanced coverages and can determine the RLM thresholds for normal converge on the hypothetical NPDCCH channels; or can receive an offset between in-sync and out-of-sync thresholds from a base station and determine the RLM out-of-sync threshold based on the hypothetical NPDCCH channels and the RLM in-of-sync threshold based on the out-of-sync threshold and the offset provided by the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.