ADAPTIVE ENVELOPE TRACKING THRESHOLD

• Main Authors: CAMUFFO ANDREA, PINARELLO SANDRO
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

An apparatus of a transmitter and method are provided, the apparatus comprising a processor that calculates a supply voltage (SV) value (SVV) to provide as an SV for a power amplifier (PA) of the transmitter for transmissions during a transmission time slot (TS). When the SV < an envelope tracking (ET) threshold (ETT), then the processor configures the PA to transmit a signal in an average power tracking (APT) mode that maintains the SV at the SVV during the TS. When the SV >= ETT, and an APT condition is met, then the processor configures the PA to transmit the signal in the APT mode. When the SV>= ETT, and the APT condition is not met, then the processor transmits by an adjustment to the SVV to track an amplitude modulation envelope during the TS in an ET mode. 提供了一种发送器的装置和方法，该装置包括处理器，该处理器计算电源电压(SV)值(SVV)以作为发送器的功率放大器(PA)的SV提供，以用于在传输时隙(TS)期间进行传输。当SV<包络跟踪(ET)阈值(ETT)时，则处理器将PA配置为以平均功率跟踪(APT)模式发送信号，该模式在该TS期间将SV维持在该SVV。当SV≥ETT并且满足APT条件时，处理器配置PA以在APT模式下发送信号。当SV≥ETT并且不满足APT条件时，处理器通过调整SVV以在ET模式中在TS期间跟踪幅度调制包络，来进行发送。