Predistortion circuit for a wireless transmitter and method of generating a predistorted baseband signal
By employing multiple predistortion sub-circuits and dynamic switching of configuration processing circuits in the wireless transmitter, the problem of excessive power consumption of the wireless transmitter under different waveforms and bandwidths is solved, achieving efficient energy management and signal quality assurance under complex modulation schemes such as 5G NR.
Patent Information
- Application Number
- CN202310675977.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2017-12-29
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2037-12-29
AI Technical Summary
Existing wireless transmitter predistortion circuits often lead to unnecessary high power consumption and current waste when faced with different modulation schemes and transmission bandwidths. In particular, when supporting complex waveforms such as 5G NR, it is difficult to effectively adjust the predistorter configuration to optimize power consumption and signal quality.
By employing multiple predistortion sub-circuits and configuration processing circuits, different combinations of predistortion sub-circuits are selectively activated, and the predistorter configuration is dynamically switched according to the operating characteristics and signal characteristics of the wireless transmitter to generate a predistorted baseband signal, thereby reducing the number of computing nodes and saving energy consumption.
It enables dynamic adjustment of the predistorter configuration under different waveforms and transmission bandwidths, reduces current consumption, improves battery life, meets signal quality requirements, and adapts to the needs of complex modulation schemes such as 5G NR.