Customizable ramp-up and ramp-down amplitude profiles for a digital power amplifier (DPA) based transmitter
US9923529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Sep 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatuses, systems, and methods for a digital power amplifier (DPA) to generate a monotonic and linear ramp-up and ramp-down for a time division multiple access (TDMA) slot transmission are described. In one aspect, a monotonic and linear amplitude-to-control input code relationship model is generated for the DPA and stored. When the DPA needs to generate a ramp-up or ramp-down, the stored monotonic and linear amplitude-to-control input code relationship model is used to shape the input control code before it is input into the DPA. A new monotonic and linear amplitude-to-control input code relationship model may be generated and stored if the operating conditions change. The apparatuses, systems, and methods described herein may be applied to a multi-standard broadband modem chip capable of 2G transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.