Clear sky determination in uplink power control using dual time constants
US9871578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18543
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An uplink power control system and a machine-implemented method for determining clear sky and adjusting uplink power are provided. A receiving station, which may be a satellite terminal or a satellite gateway, receives a reference signal from a satellite. The reference signal may be sampled over a sampling time period in order to compute a filtered short-term average downlink SINR. A filtered long-term average downlink SINR may be adjusted toward the filtered short-term average downlink SINR using either a first time constant or second time constant, based on a relationship between the filtered long-term average downlink SINR and the filtered short-term average downlink SINR. In some implementations, the second time constant is less than the first time constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.