Method and apparatuses for power control using variable step size
US9094920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2010 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/221
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method in a radio communications network for controlling a transmission power of a user equipment (12) transmitting data to a radio base station (10) in the radio communications network. The radio base station (10) retrieves a target signal to interference ratio value and measures a signal to interference ratio of a signal transmitted with a current transmission power from the user equipment (12). The radio base station (10) then determines a user equipment capability of power control of the user equipment (12). Furthermore, the radio base station (10) computes a power control command based on the measured signal to interference ratio, the retrieved target signal to interference ratio, and the user equipment capability of power control, which power control command indicates a power control adjustment step of the user equipment (12). The radio base station (10) then transmits the power control command to the user equipment (12). The user equipment (12) calculates a transmission power step based on said received power control command and adjusts the transmission power by applying the calculated transmission power step to the current transmission power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.