APPARATUS INCLUDING SM IN WIRELESS COMMUNICATION SYSTEM

Abstract: the disclosure relates to a 5g or 6g communication system for supporting a data transmission rate higher than a 4g communication system such as lte. an electronic device in a wireless communication system may include a pa and an sm configured to supply power to the pa, wherein the sm may include a linear sm to which a signal for an envelope tracking (et) is input, and a first sm connected to the linear sm and comprising a first converter for direct current (dc)-dc conversion and at least one lumped element connected to the first converter, and the first sm may be configured to convert the signal for the et into a first digital signal, to generate a first control signal for the first converter based on a change of a voltage value of the first digital signal, to generate a second digital signal by delaying the first digital signal by a predetermined clock, and to control the at least one lumped element based on the first digital signal and the second digital signal to adjust a current output from the first sm.

Inventor(s): Heesung LEE, Jaekwang KWON, Dongki KIM, Seongkyun KIM, Hyohyun NAM, Kyeongho YEOM, Daeyoung LEE

CPC Classification: H04B1/0078 (Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission)

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