Samsung Electronics Co., Ltd.

Yongwoon Moon

Songkyu Kim

Insoo Lee

Junehee Lee

Kwangjae Woo

Sangjun Park

Sungho Seo

Hyungjoon Yu

Youngjun Park

Youngkwon Lee

Myungjin Kang

Jinsub Park

Youngil Chang

Bonggoo Jun

In various embodiments, an electronic device comprising a communication circuit, a processor, and a memory is disclosed. The memory may store instructions that, when executed, cause the processor to transmit, to a network, a first session initiation protocol (SIP) invite message including at least one dummy value by using the communication circuit, obtain channel state information by using the communication circuit, determine a codec for performing a packet based call on the basis of channel state information, and transmit, to the network, a second SIP invite message including information of the determined codec by using the communication circuit. Various other embodiments are also possible which are known from the specification.

Method for controlling codec on basis of channel conditions and electronic device

An electronic device for supporting carrier aggregation (CA) is provided. The electronic device includes a radio frequency integrated circuit (RFIC) including a plurality of mixers and a feedback circuit, at least one antenna, a coupler disposed between the RFIC and the at least one antenna to transfer a reflected signal of a transmission signal to the feedback circuit, and at least one processor operatively connected to the RFIC, wherein the at least one processor may identify whether there is a mixer which is not in use among the plurality of mixers, when the first mixer which is not in use among the plurality of mixers is identified, perform antenna impedance tuning through a first mixer and the feedback circuit, and when the plurality of mixers are all in use, perform the antenna impedance tuning through a second mixer assigned to a secondary cell (Scell) among the plurality of mixers and the feedback circuit.

Structure of electronic device for optimizing performance of antenna and method thereof

An electronic device is provided. The electronic device includes a display, at least one communication circuit, and at least one processor configured to control the display and the at least one communication circuit. The at least one processor is configured to obtain a communication state using the at least one communication circuit during a packet based voice call, and to stop transmitting data associated with at least one of a plurality of background applications which operate in a background of an operating system (OS) of the electronic device when the communication state meets a specified first condition.

Electronic device for controlled transmission of voice data packet and method thereof

Growing community of inventors

Suwon-si, South Korea

Yongwoon Moon