Transmitter system with digital phase rotator used for applying digital phase rotation to constellation data and related signal transmission method thereof
AssigneeMediatek Inc.
InventorsMing-Yu Hsieh, Chi-Hsueh Wang, Pou-Chi Chang
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Abstract
A transmitter system includes a digital phase rotator, a phase rotation controller, and a digital radio-frequency (RF) transmitter. The digital phase rotator receives a first constellation data, and applies a digital phase rotation to the received first constellation data to generate a second constellation data. The phase rotation controller configures the digital phase rotation. The digital RF transmitter receives a digital input data derived from the second constellation data, and converts the digital input data into an analog RF output.
Claims16
A transmitter system, comprising:
- a digital phase rotator, arranged to receive a first constellation data and apply a digital phase rotation to the received first constellation data to generate a second constellation data;
- a phase rotation controller, arranged to configure the digital phase rotation;
- and
- a digital radio-frequency (RF) transmitter, arranged to receive a digital input data derived from the second constellation data, and process the digital input data for transmission of an analog RF output;
- wherein the analog RF output is generated through at least one digital power amplifier;
- and a configuration of the digital phase rotation is dependent upon at least one characteristic of the digital RF transmitter.
A signal transmission method, comprising:
- receiving a first constellation data;
- configuring a digital phase rotation;
- applying the digital phase rotation to the received first constellation data to generate a second constellation data;
- and
- utilizing a digital radio-frequency (RF) transmitter to receive a digital input data derived from the second constellation data and process the digital input data for transmission of an analog RF output;
- wherein the analog RF output is generated through at least one digital power amplifier;
- and a configuration of the digital phase rotation is dependent upon at least one characteristic of the digital RF transmitter.
Dependencies are inferred from the claim text.