公开(公告)号：US20160065254A1

公开(公告)日：2016-03-03

申请号：US14835111

申请日：2015-08-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Jeong PARK ,  Mun-Yang PARK ,  Dong-Woo KANG ,  Jang-Hong CHOI

IPC: H04B1/04 ,  H04B17/13

CPC classification number: H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B1/0028 ,  H04B2001/0416 ,  H04B2001/0441 ,  H04W52/346 ,  H04W52/52

Abstract: Exemplary embodiments of the present invention relate to an RF transmitter supporting carrier aggregation and envelope tracking and an RF transmitter according to an embodiment of the present invention comprises an RF path configured to convert a carrier aggregation signal in which a plurality of component carriers belonging to a baseband are aggregated into an RF signal; an ET path configured to generate an envelope signal by calculating magnitudes of the plurality of component carriers, respectively, and adding the calculated each magnitude of the component carriers; and an amplifier configured to power-amplify the converted RF signal according to a bias voltage corresponding to the generated envelope signal. According to exemplary embodiments of the present invention, power amplification efficiency and data transmission efficiency are improved by applying carrier aggregation and envelope tracking.

Abstract translation: 本发明的示例性实施例涉及一种支持载波聚合和包络跟踪的RF发射机，以及根据本发明实施例的RF发射机，包括：RF路径，被配置为转换载波聚合信号，其中属于 基带被聚合成RF信号; ET路径，其被配置为通过分别计算所述多个分量载波的幅度并且分别计算所述分量载波的每个幅度来生成包络信号; 以及放大器，被配置为根据与所生成的包络信号相对应的偏置电压对转换的RF信号进行功率放大。 根据本发明的示例性实施例，通过应用载波聚合和包络跟踪来提高功率放大效率和数据传输效率。