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EP-4742546-A1 - ELECTRONIC DEVICE FOR CONTROLLING SWITCH ELECTRICALLY CONNECTED TO ANTENNA, AND OPERATION METHOD THEREOF

EP4742546A1EP 4742546 A1EP4742546 A1EP 4742546A1EP-4742546-A1

Abstract

This electronic device comprises: a power amplifier (PA) (830) for amplifying a RF signal to be transmitted to a satellite base station; a first power amplifier power management integrated circuit (PA PMIC) (811) for supplying power onto the PA; a first switch (821) for connecting one among an output port of the first PA PMIC and an input port of the PA to the first PA PMIC; and a communication processor (610). The communication processor may: control the first switch so as to connect the output port of the first PA PMIC to the first PA PMIC; control the first PA PMIC so as to measure an output voltage of the first PA PMIC; control the first switch so as to connect the input port of the PA to the first PA PMIC; control the first PA PMIC so as to measure a supply voltage of the PA; determine the difference value between the output voltage of the first PA PMIC and the supply voltage of the PA; and adjust the output voltage of the first PA PMIC on the basis of the determined difference value.

Inventors

  • KIM, Cheonshik
  • SEO, HYUNMIN
  • KIM, SEUNGHWAN
  • LEE, DONGSUB
  • LEE, HYUNGMIN
  • JEON, Minhwan

Assignees

  • Samsung Electronics Co., Ltd.

Dates

Publication Date
20260513
Application Date
20240730

Claims (15)

  1. An electronic device (101), comprising: a power amplifier (PA) (830) amplifying a RF signal to be transmitted to a satellite base station; a first power amplifier power management integrated circuit (PA PMIC) (811) supplying power to the power amplifier (PA); a first switch (821) connecting one of an output port of the first PA PMIC and an input port of the PA to the first PA PMIC; and a communication processor (610), wherein the communication processor is configured to control the first switch to connect the output port of the first PA PMIC to the first PA PMIC and control the first PA PMIC to measure an output voltage of the first PA PMIC, control the first switch to connect the input port of the PA to the first PA PMIC and control the first PA PMIC to measure a supply voltage of the PA, determine a difference value between the output voltage of the first PA PMIC and the supply voltage of the PA, and adjust the output voltage of the first PA PMIC based on the determined difference value.
  2. The electronic device of claim 1, further comprising: a second power amplifier power management integrated circuit (PA PMIC) (812) supplying the power to the power amplifier (PA); and a second switch (822) connecting one of an output port of the second PA PMIC and the input port of the PA to the second PA PMIC, wherein the communication processor is configured to control the first switch to connect the output port of the first PA PMIC to the first PA PMIC and control the first PA PMIC to measure an output voltage of the first PA PMIC, control the second switch to connect the input port of the PA to the second PA PMIC and control the second PA PMIC to measure the supply voltage of the PA, determine a difference value between the output voltage of the first PA PMIC and the supply voltage of the PA, and adjust the output voltage of the first PA PMIC based on the difference value.
  3. The electronic device of claim 2, wherein the communication processor is configured to control the second switch to connect the output port of the second PA PMIC to the second PA PMIC and control the second PA PMIC to measure an output voltage of the second PA PMIC, control the first switch to connect the input port of the PA to the first PA PMIC and control the first PA PMIC to measure the supply voltage of the PA, determine a difference voltage between the supply voltage of the PA and an output voltage of the second PA PMIC, and adjust the output voltage of the second PA PMIC based on the difference value.
  4. The electronic device of claim 1, further comprising: a second power amplifier power management integrated circuit (PA PMIC) (812) supplying the power to the power amplifier (PA); and a second switch (822) connecting one of an output port of the second PA PMIC and the input port of the PA to the second PA PMIC, wherein the communication processor is configured to control the second switch to connect an output port of the second PA PMIC to the second PA PMIC and control the second PA PMIC to measure an output voltage of the second PA PMIC, control the second switch to connect the input port of the PA to the second PA PMIC and control the second PA PMIC to measure the supply voltage of the PA, determine a difference value between an output voltage of the second PA PMIC and the supply voltage of the PA, and adjust the output voltage of the second PA PMIC based on the difference value.
  5. The electronic device of claim 1, wherein the first switch is connected to a first feedback line branched at a point relatively close to an output terminal of the first PA PMIC while being electrically connected to the first PA PMIC, and is connected to a second feedback line branched at a point relatively close to the power supplied to the PA.
  6. The electronic device of claim 5, wherein the relatively close point refers to relatively close point between the output terminal of the first PA PMIC and the power supplied to the PA.
  7. The electronic device of claim 1, wherein the communication processor transmits a signal output from the PA to the satellite base station via an antenna.
  8. The electronic device of claim 2, wherein the second switch is connected to a third feedback line branched at a point relatively close to an output terminal of the second PA PMIC while being electrically connected to the second PA PMIC, and is connected to a fourth feedback line branched at a point relatively close to the power supplied to the PA.
  9. The electronic device of claim 8, wherein the relatively close point refers to relatively close point between the output terminal of the second PA PMIC and the power supplied to the PA.
  10. A method for operating an electronic device, comprising: controlling a first switch to connect an output port of a first PA PMIC and the first PA PMIC and controlling the first PA PMIC to measure the output voltage of the first PA PMIC; controlling the first switch to connect an input port of the PA to the first PA PMIC and controlling the first PA PMIC to measure a supply voltage of the PA; determining a difference value between the output voltage of the first PA PMIC and the supply voltage of the PA; and adjusting the output voltage of the first PA PMIC based on the determined difference value.
  11. The method of claim 10, further comprising: controlling a first switch to connect an output port of a first PA PMIC to the first PA PMIC and controlling the first PA PMIC to measure the output voltage of the first PA PMIC; controlling the second switch to connect an input port of the PA to a second PA PMIC and controlling the second PA PMIC to measure the supply voltage of the PA; determining a difference value between the output voltage of the first PA PMIC and the supply voltage of the PA; and adjusting the output voltage of the first PA PMIC based on the difference value.
  12. The method of claim 11, further comprising: controlling the second switch to connect the output port of the second PA PMIC to the second PA PMIC and controlling the second PA PMIC to measure the output voltage of the second PA PMIC; controlling the first switch to connect the input port of the PA to the first PA PMIC and controlling the first PA PMIC to measure the supply voltage of the PA; determining a difference voltage between the supply voltage of the PA and an output voltage of the second PA PMIC; and adjusting the output voltage of the second PA PMIC based on the difference value.
  13. The method of claim 11, further comprising: controlling the second switch to connect an output port of the second PA PMIC to the second PA PMIC and controlling the second PA PMIC to measure the output voltage of the second PA PMIC; controlling the second switch to connect the input port of the PA to the second PA PMIC and controlling the second PA PMIC to measure the supply voltage of the PA; determining a difference value between the output voltage of the second PA PMIC and the supply voltage of the PA; and adjusting the output voltage of the second PA PMIC based on the difference value.
  14. The method of claim 10, wherein the first switch is connected to a first feedback line branched at a point relatively close to an output terminal of the first PA PMIC while being electrically connected to the first PA PMIC, and is connected to a second feedback line branched at a point relatively close to the power supplied to the PA.
  15. The method of claim 14, wherein the relatively close point refers to relatively close point between the output terminal of the first PA PMIC and a power supplied to the PA.

Description

[Technical Field] Various embodiments of the present document relate to an electronic device and a method for operating an electronic device, and more particularly, to a technology for controlling a switch electrically connected to an antenna. [Background Art] In order to meet the demand for wireless data traffic since the 4th generation (4G) communication system came to the market, there are ongoing efforts to develop enhanced 5G communication systems or pre-5G communication systems. For the reasons, the 5G communication system or pre-5G communication system is called the beyond 4G network communication system or post long-term evolution (LTE) system. To achieve high data rates, the 5G communication systems are being considered for implementation not only in bands (bands below 6 GHz) used by LTE, but also in ultrahigh frequency (mmWave) bands (e.g., such as bands above 6 GHz). In the 5G communication systems, beamforming, massive multiple input multiple output (MIMO), full dimensional MIMO (FD-MIMO), an array antenna, analogue beam-forming, and large scale antenna technologies are being discussed. The above-described information may be provided as related art for the purpose of assisting in understanding the present disclosure. No claim or determination is made as to whether any of the above-described contents is applicable as prior art related to the present disclosure. [Disclosure of Invention] [Technical Problem] Satellite communications may require relatively high transmit power (e.g., about 36 dBm). Because satellite communications use relatively high level (e.g., 36dBm) of transmit power (TX power), even with a relatively small DC resistance (DCR) component on the power wiring, a relatively large voltage drop may occur. In a situation where cellular communication systems and satellite communication systems with the same resistance are compared, cellular communication systems use relatively low level (e.g., 23 to 26dBm) of transmit power (TX power), which results in a relatively lower magnitude of flowing current. As a result, a voltage drop may not occur relatively significantly. Satellite communication systems consume relatively large currents (e.g., 2 A) during transmission compared to cellular communication systems, so a voltage drop may occur relatively significantly. The electronic device according to a comparative embodiment has limitations in that the voltage drop occur in a power amplifier (PA), resulting in signal distortion. An electronic device includes: a power amplifier (PA) 830 amplifying a RF signal to be transmitted to a satellite base station; a first power amplifier power management integrated circuit (PA PMIC) 811 supplying power to the power amplifier (PA); a first switch 821 connecting one of an output port of the first PA PMIC and an input port of the PA to the first PA PMIC; and a communication processor 610, wherein the communication processor may control the first switch to connect the output port of the first PA PMIC to the first PA PMIC, control the first PA PMIC to measure an output voltage of the first PA PMIC, control the first switch to connect the input port of the PA to the first PA PMIC, control the first PA PMIC to measure a supply voltage of the PA, determine a difference value between the output voltage of the first PA PMIC and the supply voltage of the PA, and adjust the output voltage of the first PA PMIC based on the determined difference value. A method for operating an electronic device may include: controlling a first switch to connect an output port of a first PA PMIC to the first PA PMIC; controlling the first PA PMIC to measure the output voltage of the first PA PMIC; controlling the first switch to connect an input port of the PA to the first PA PMIC; controlling the first PA PMIC to measure a supply voltage of the PA; determining a difference value between the output voltage of the first PA PMIC and a supply voltage of the PA; and adjusting the output voltage of the first PA PMIC based on the determined difference value. An electronic device according to various embodiments of the present document may compensate for a voltage when a voltage drop occurs, thereby preventing distortion of a transmission signal due to the voltage drop. An electronic device according to various embodiments of the present document may detect a difference between an output of a power amplifier power management IC (PA PMIC) and power supplied to a power amplifier (PA) by adding only a switch, and determine a voltage compensation level. [Brief Description of Drawings] FIG. 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments.FIG. 2 is a block diagram of an electronic device for supporting legacy network communication and 5G network communication according to various embodiments.FIG. 3 is a diagram illustrating the electronic device according to one embodiment and a long-distance communication network environment