KR20230131745A - Electronic device for controlling wireless transmission and operating method thereof - Google Patents

Abstract

Disclosed is an electronic device, which can control the transmission of a wireless signal depending on a proximity of a human body without a separate sensor, comprising: an antenna; a power amplifier (PA) transmitting an output signal to the antenna via a signal path; a coupler acquiring a first signal coupled to the output signal and a second signal coupled to a reflection signal of the output signal reflected from the antenna; an equalizing module generating an altered signal by changing a magnitude and/or a phase of one signal among the first signal and the second signal; a difference circuit generating a difference signal between the altered signal and the remaining one signal among the first signal and the second signal; and a controller configured to control the transmission of a wireless signal based on the difference signal. Various other embodiments identified by the present specification are possible.

Description

Electronic device for controlling wireless transmission and operating method thereof {ELECTRONIC DEVICE FOR CONTROLLING WIRELESS TRANSMISSION AND OPERATING METHOD THEREOF}

Various embodiments disclosed in this document relate to an electronic device that controls wireless transmission and a method of operating the same.

In the case of mmWave band signals, the hazard to the human body is determined by the power per unit area on the human body surface (W/m ² ) (i.e., power density (PD: power density)). For example, the power of the entire surface of the electronic device should be measured in 4 cm ² units at a point about 2 mm away from the surface of the electronic device, and the measured power density should not exceed a standard value (e.g., 10 W/m ² ). It is evaluated that the standards for human hazard are satisfied.

If the measured power density of an electronic device exceeds the standard, the wireless signal must be transmitted at a power lower than the device's maximum output. In this case, signal attenuation depending on distance may be a factor in reducing the coverage of wireless communication using a very large mmWave band signal.

Therefore, in order to overcome the effective isotropic radiated power (EIRP) limitation, there is a method of back-off the maximum EIRP depending on the proximity of the human body.

However, there is a disadvantage that a separate sensor (eg, proximity sensor) must be provided in the electronic device to detect the proximity of a human body.

Therefore, a method for detecting the proximity of a human body using a communication module for mmWave communication may be required.

An electronic device according to an embodiment disclosed in this document includes an antenna, a power amplifier (PA) that transmits an output signal to the antenna through a signal path, a first signal coupled to the output signal, and the antenna. A coupler for obtaining a second signal coupled with a reflected signal of the output signal reflected from the output signal, and an equalizing module for generating a changed signal by changing the magnitude and/or phase of one of the first signal and the second signal. (equalizing module), a differential circuit for generating a differential signal between the remaining one of the first signal or the second signal and the changed signal, and a controller configured to control transmission of a wireless signal based on the differential signal may include.

A method of operating an electronic device according to an embodiment disclosed in this document includes obtaining a first signal coupled with an output signal transmitted to an antenna through a signal path, and a reflected signal of the output signal reflected from the antenna. An operation of obtaining a second signal coupled with an operation of generating a changed signal by changing the magnitude and/or phase of one of the first signal or the second signal, the first signal or the second signal It may include generating a differential signal between the remaining signal and the changed signal, and controlling transmission of a wireless signal based on the differential signal.

The electronic device and its operating method according to an embodiment of the present disclosure can control the transmission of a wireless signal depending on the proximity of a human body without a separate sensor (eg, proximity sensor).

FIG. 1A is a block diagram of an electronic device according to an embodiment of the present disclosure.
FIG. 1B shows the positions of array antennas of an electronic device according to an embodiment of the present disclosure.
Figure 2 shows an RFFE and an antenna of an electronic device according to an embodiment of the present disclosure.
FIG. 3A shows signal flow according to a closed loop power control (CLPC) operation according to an embodiment of the present disclosure.
FIG. 3B shows signal flow according to an event detection operation according to an embodiment of the present disclosure.
FIG. 3C shows signal flow according to a first parameter adjustment operation according to an embodiment of the present disclosure.
FIG. 3D shows signal flow according to a second parameter adjustment operation according to an embodiment of the present disclosure.
Figure 4 shows a transmission sequence according to an embodiment of the present disclosure.
FIG. 5A shows another structure of an RFFE of an electronic device according to an embodiment of the present disclosure.
FIG. 5B shows another structure of an RFFE of an electronic device according to an embodiment of the present disclosure.
FIG. 5C shows another structure of an RFFE of an electronic device according to an embodiment of the present disclosure.
FIG. 6 illustrates an RFFE and an array antenna of an electronic device according to an embodiment of the present disclosure.
FIG. 7A illustrates an RFFE and an array antenna of an electronic device according to an embodiment of the present disclosure.
FIG. 7B illustrates an RFFE and an array antenna of an electronic device according to an embodiment of the present disclosure.
FIG. 7C illustrates an RFFE and an array antenna of an electronic device according to an embodiment of the present disclosure.
Figure 8 is a flowchart showing an event detection operation of an electronic device according to an embodiment of the present disclosure.
FIG. 9 is a flowchart illustrating a parameter adjustment operation of an electronic device according to an embodiment of the present disclosure.
FIG. 10 is a flowchart showing a calibration operation of an electronic device according to an embodiment of the present disclosure.
FIG. 11 is a block diagram of an electronic device in a network environment 1200 according to various embodiments.
In relation to the description of the drawings, identical or similar reference numerals may be used for identical or similar components.

FIG. 1A is a block diagram of an electronic device 101 according to an embodiment of the present disclosure. FIG. 1B shows the positions of array antennas of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 1A, the electronic device 101 includes a processor 110, a communication processor (CP) 130, a radio frequency integrated circuit (RFIC) 150, and a radio frequency front end (RFFE) 160. , and may include an antenna module 170.

The processor 110 may execute software to control at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 110 and perform various data processing or operations. You can.

Communication processor 130 may support establishment of a communication channel in a band to be used for wireless communication with network 180, and network communication through the established communication channel. Communication processor 130 may operate independently from processor 110.

The RFIC 150 may down-convert a radio frequency (RF) signal and convert it into an intermediate frequency (IF) signal and/or a baseband signal. In one embodiment, RFIC 150 may up-convert mid-band (IF) signals and/or baseband signals from communications processor 130 and convert them into radio frequency signals.

The RFFE 160 may amplify the transmission signal (or output signal) from the RFIC 150 and/or change the phase of the transmission signal and then transmit it to the antenna module 170. Additionally, the RFFE 160 may amplify the received signal from the antenna module 170 and/or change the phase of the transmitted signal and then transmit it to the RFIC 150.

The antenna module 170 may be an array antenna including a plurality of antennas.

Referring to FIG. 1B, the antenna module 170 may be composed of a plurality of array antennas 171, 173, 175, and 177. Each of the plurality of array antennas 171, 173, 175, and 177 may be placed in the electronic device 101 to be physically spaced apart from each other.

FIG. 2 illustrates an RFFE 200 and an antenna 220 of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 2, the RFFE 200 includes an amplifier 211, an amplifier 213, a switch 215, a coupler 230, a switch 235, an amplifier 251, an amplifier 253, and a phase shifter ( It may include a phase shifter 255, a switch 257, a differential circuit 259, a power detector 260, an analog to digital converter (ADC) 265, and a controller 270. Hereinafter, amplifier 211, amplifier 213, switch 215, coupler 230, switch 235, amplifier 251, amplifier 253, phase shifter 255, switch 257, and differential circuit 259 may be referred to as a circuit module. Hereinafter, the amplifier 251, amplifier 253, phase shifter 255, and switch 257 may be referred to as an equalizing module. The RFFE 200 of FIG. 2 may further include circuit elements. For example, the receive path 201 and/or the transmit path 203 may further include a phase shifter.

In one embodiment, RFFE 200 may correspond to RFFE 160 in FIG. 1 . In one embodiment, the antenna 220 may refer to one antenna among a plurality of antennas included in one of the plurality of array antennas 171, 173, 175, and 177 of FIG. 1.

The amplifier 211 may amplify the strength of the received signal on the receive path 201 and transmit the amplified received signal to an RFIC (eg, RFIC 150 in FIG. 1). The amplifier 213 may amplify the strength of the transmission signal (or output signal) on the transmission path 203 and transmit the amplified transmission signal to the antenna 220 through the switch 215.

The switch 215 electrically connects the antenna 220 and the amplifier 211 by connecting the signal path 205 and the reception path 201, or connects the signal path 205 and the transmission path 203 to connect the antenna (220) and amplifier 213 can be electrically connected.

Coupler 230 may obtain a coupled signal coupled to a signal on signal path 205. In one embodiment, the coupled signal may include a first signal coupled to the transmission signal and a second signal coupled to a reflected signal of the transmission signal reflected from the antenna 220.

A leakage signal may be generated due to physical characteristics (eg, coupler isolation) of the coupler 230. In one embodiment, a first leakage signal may be generated as a transmission signal leaks due to the physical characteristics of the coupler 230. In one embodiment, a second leakage signal may be generated as a reflected signal leaks due to the physical characteristics of the coupler 230.

The first signal and the first leakage signal are generated by the same transmission signal, but have different strengths and may travel in opposite directions. In one embodiment, the strength of the first signal may be greater than the first leakage signal. Also, the second signal and the second leakage signal are generated by the same reflected signal, but have different intensities and may travel in opposite directions. In one embodiment, the strength of the second signal may be greater than the second leakage signal.

Due to the physical characteristics of the coupler 230, the first signal and the second leakage signal may be transmitted through the same signal path, and the second signal and the first leakage signal may be transmitted through the same signal path. In the following description, since the intensity of the second leakage signal is much smaller than the intensity of the first signal due to the coupling ratio and coupling isolation, the second leakage signal may be omitted.

Switch 235 may pass the coupled signal to the first signal path 241 and/or to the second signal path 245 . In one embodiment, switch 235 may be a double pole double throw (DPDT) switch. For example, the switch 235 connects the first input terminal 291 to the first output terminal 293 and the second input terminal 295 to the second output terminal 297 (hereinafter referred to as first switching connection), Alternatively, the first input terminal 291 may be connected to the second output terminal 297 and the second input terminal 295 may be connected to the first output terminal 293 (hereinafter referred to as second switching connection). The switch 235 may transfer the coupled signal to the first signal path 241 and/or the second signal path 245 through the first switching connection.

The amplifier 251 may amplify the strength of the coupled signal on the first signal path 241 and transmit the amplified coupled signal to the difference circuit 259.

The amplifier 253 may amplify the strength of the coupled signal on the second signal path 245 and transmit the amplified coupled signal to the phase shifter 255.

The phase shifter 255 may change the phase of the amplified coupled signal and transmit the phase-changed coupled signal to the difference circuit 259 through the switch 257.

The difference circuit 259 may generate a difference signal between the coupled signal transmitted through the first signal path 241 and the coupled signal transmitted through the second signal path 245. For example, the difference circuit 259 may generate a difference signal by subtracting the coupled signal transmitted through the second signal path 245 from the coupled signal transmitted through the first signal path 241.

The differential circuit 259 may transmit the generated differential signal to the power detector 260.

The power detector 260 may detect the intensity (or amplitude) and/or the normalized intensity (or amplitude) of the difference signal received from the difference circuit 259. In one embodiment, the normalized intensity may be the intensity of the difference signal (P _Diff ) divided by the intensity of the transmitted signal (P _TX ).

In one embodiment, power detector 260 may be an envelope detector.

Power detector 260 may transmit the normalized intensity of the differential signal to ADC 265.

The ADC 265 may convert the normalized intensity of the differential signal received from the power detector 260 into a digital signal.

The controller 270 may control the components of the RFFE 200 based on digital signals. For example, the controller 270 may adjust parameters (e.g., gain or degree of amplification) related to the amplifiers 213, 251, and 253. As another example, controller 270 may adjust parameters associated with phase shifter 255 (e.g., phase shift).

The controller 270 may include a control circuit 281 for controlling the amplifiers 213, 251, 253 and/or the phase shifter 255 according to parameters. The control circuit 281 may include a closed loop power control (CLPC) circuit 283, a parameter control circuit 285, and a memory 287.

The CLPC circuit 283 may adjust the gain (or degree of amplification) of the amplifiers 213 and 251 based on the digital signal during CLPC operation.

The parameter control circuit 285 may adjust the gain (or amplification degree) of the amplifiers 251 and 253 and/or the phase shift of the phase shifter 255 based on the digital signal during the event detection operation. there is.

The memory 287 may store parameters for adjusting the gain (or amplification degree) of the amplifiers 251 and 253, and parameters for adjusting the phase shift of the phase shifter 255. According to one embodiment, the memory 287 may store different parameters for adjusting the gain (or amplification degree) of the amplifier 251 and the amplifier 253 or store the same parameters.

In one embodiment, the memory 287 may store parameters for adjusting the gain (or amplification degree) of the amplifier 253 as shown in Table 1 below.

gain 1 gain 2 ... gain M frequency 1 VGA _1,1 VGA _1,2 ... VGA _1,M frequency 2 _VGA2,1 VGA _2,2 ... VGA _2,M ... ... ... ... ... frequency N VGA _N,1 VGA _N,2 ... VGA _N,M

In Table 1, frequency 1 to frequency N (where N is an integer) represents the index of the frequency band supported by the communication processor 130, and gain 1 to gain M (where M is an integer) represents the acquisition of parameters. Indicates order. For example, VGA _1,1 may be a parameter acquired before VGA _1,M . The entities in Table 1 can be managed first in first out (FIFO). For example, if a new parameter is acquired at frequency 1, VGA _1,1 may be removed, VGA _1,2 may become the new VGA _1,1 , and the new parameter may become the new VGA _1,M . One embodiment In, the memory 287 may store parameters for adjusting the phase shift of the phase shifter 255 as shown in Table 2 below.

phase shift 1 phase shift 2 ... Phase shift M frequency 1 PH _1,1 PH _1,2 ... PH _1,M frequency 2 PH _2,1 PH _2,2 ... PH _2,M ... ... ... ... ... frequency N PH _N,1 PH _N,2 ... PH _{N, M}

In Table 2, frequency 1 to frequency N (where N is an integer) represents the index of the frequency band supported by the communication processor 130, and phase shift 1 to phase shift M (where M is an integer) are parameters. Indicates the order of acquisition. For example, PH _1,1 may be a parameter acquired before PH _1,M . The entities in Table 2 can be managed in FIFO. For example, if a new parameter is acquired at frequency 1, PH _1,1 is removed, PH _1,2 becomes the new PH _1,1 , and the new parameter may become the new PH _1,M . In one embodiment, the memory 287 may store parameters corresponding to different frequency bands for each antenna. For example, the memory 287 may store parameters corresponding to different frequency bands for the first array antenna 171 and parameters corresponding to different frequency bands for the second array antenna 173.

In one embodiment, the memory 287 may store parameters corresponding to different frequency bands for each antenna depending on whether the antennas are operating. For example, the memory 287 may store parameters corresponding to different frequency bands for the first array antenna 171 depending on whether the other array antennas 173, 175, and 177 are operating.

In one embodiment, the memory 287 may store parameters corresponding to different frequency bands for each antenna included in the array antenna depending on whether the antennas included in the array antenna are operating. For example, the memory 287 may include parameters for a first antenna among the plurality of antennas included in the first array antenna 171, at least one second antenna other than the first antenna among the plurality of antennas. Parameters based on whether to operate can be stored.

The controller 270 may further include an amplifier 289 for transmitting the digital signal of the ADC 265 to an external device (e.g., the processor 110 of FIG. 1 and/or the communication processor 130 of FIG. 1). there is.

FIG. 3A shows signal flow according to CLPC operation according to an embodiment of the present disclosure.

In one embodiment, the controller 270 may set the amplifier 251 to a specified gain (A ₁ ) during CLPC operation.

In one embodiment, the controller 270 may control the switch 215 to connect the transmission path 203 and the signal path 205 during CLPC operation. In one embodiment, the controller 270 may connect the switch 235 to the second switching such that the first signal is input to the difference circuit 259 through the first signal path 241 during CLPC operation. In one embodiment, the controller 270 may open the switch 257 to prevent the first leakage signal and the second signal from being input to the difference circuit 259 during CLPC operation. Here, the second switching connection is such that the first input terminal 291 of the switch 235 is connected to the second output terminal 297 of the switch 235, and the second input terminal 295 of the switch 235 is connected to the switch 235. ) may indicate a state of being connected to the first output terminal 293. Here, the first signal is a coupled signal coupled to the transmit signal on the transmit path 205, the first leakage signal is a leakage signal of the transmit signal on the transmit path 205, and the second signal is a reflection of the transmit signal. It may be a coupled signal that is coupled to a signal.

As the controller 270 controls the switches 215, 235, and 257, paths 311, 312, and 313 may be created.

When the transmission signal along the path 311 is transmitted to the antenna 220 through the amplifier 213 and the switch 215, the coupler 230 may obtain the first signal.

As the switch 235 is connected to the second switching, the first signal can be input to the differential circuit 259 along the path 312. Meanwhile, it can be understood that the first leakage signal and the second signal are not input to the difference circuit 259 as the switch 257 is opened.

Accordingly, only the first signal can be input to the difference circuit 259. The first signal can be expressed by Equation 1 below.

In Equation 1, A ₁ is the gain set at amplifier 251 during CLPC operation, CPL is the coupling ratio of the coupler, and V represents the transmit signal on signal path 205.

Differential circuit 259 may generate a differential signal. The generated differential signal may be transmitted to the controller 270 along the path 313.

While the differential signal is transmitted along the path 313, the power detector 260 may detect the strength (P _Diff ) of the differential signal and transmit the detected strength to the ADC 265.

While the differential signal is transmitted along the path 313, the ADC 265 may convert the detected intensity into a digital signal and transmit the digital signal to the controller 270.

In one embodiment, the CLPC circuit 283 of the controller 270 may control the gain of the amplifier 213 based on a digital signal input through the ADC 265. For example, the CLPC circuit 283 of the controller 270 may control the gain of the amplifier 213 through the control path 321. The CLPC circuit 283 can control the gain of the amplifier 213 so that the transmission signal has a target intensity.

FIG. 3B shows signal flow according to an event detection operation according to an embodiment of the present disclosure.

In one embodiment, the controller 270 sets a specified gain (A ₂ ) to the amplifier 251 during an event detection operation and sets parameters corresponding to the frequency of the transmitted signal to the amplifier 253 and/or the phase shifter ( 255) can be applied.

In one embodiment, the parameter control circuit 285 identifies parameters corresponding to the frequency of the transmission signal based on parameter tables (e.g., Table 1, Table 2) stored in the memory 287, and configures the identified parameters. It can be applied to the amplifier 253 and/or the phase shifter 255. In one embodiment, the parameters corresponding to the frequency of the transmission signal may be values selected from values entered in tables (e.g., Table 1 and Table 2). For example, when the frequency of the transmission signal is 1, the parameter applied to the amplifier 253 may be VGA _1,M , and the parameter applied to the phase shifter 255 may be PH _1,M . In another embodiment, the parameters corresponding to the frequency of the transmission signal may be the average value of values entered into tables (e.g., Table 1 and Table 2). For example, when the frequency of the transmission signal is 1, the parameter applied to the amplifier 253 is the average of VGA _1,1 to VGA _1,M , and the parameter applied to the phase shifter 255 is the average of PH 1,M to VGA _1,M. It may be an average of PH _1,M .

The gain (α) set in the amplifier 253 during the event detection operation and/or the phase shift (ϕ) set in the phase shifter 255 during the event detection operation is performed in the difference circuit 259 in free space. These may be parameters that ensure that the normalized intensity of the output differential signal is 0.

The parameter control circuit 285 can set the gain (α) of the amplifier 253 through the control path 341 and the phase shift (ϕ) of the phase shifter 255 through the control path 345. . Here, α may be the normalized intensity of the difference signal divided by the coupling ratio, as shown in Equation 2 below.

In Equation 2, A ₂ is the gain set in the amplifier 251 during the event detection operation, CPL is the coupling ratio of the coupler 230, and Γ _ref is free space (or quasi free space). is the reflection coefficient of the antenna 220, and ISO is the coupler isolation.

In one embodiment, the controller 270 may control the switch 215 to connect the transmission path 203 and the signal path 205 during an event detection operation. In one embodiment, the controller 270 makes a first switching connection to the switch 235 such that the first signal is input to the differential circuit 259 through the second signal path 245 during an event detection operation, and switches ( 257) can be closed. In one embodiment, the controller 270 may input the first leakage signal and the second signal to the difference circuit 259 through the first signal path 241 during an event detection operation. Here, the first switching connection is such that the first input terminal 291 of the switch 235 is connected to the first output terminal 293 of the switch 235, and the second input terminal 295 of the switch 235 is connected to the switch 235. ) may indicate a state of being connected to the second output terminal 297.

As the controller 270 controls the switches 215, 235, and 257, paths 331, 332, 333, 334, and 335 can be created.

When the transmission signal along the path 331 is transmitted to the antenna 220 through the amplifier 213 and the switch 215, the coupler 230 may obtain the first signal and the first leakage signal.

As the switch 235 is connected to the first switching connection and the switch 257 is closed, the first signal may be input to the differential circuit 259 along the path 332.

When the transmission signal is reflected from the antenna 220, the coupler 230 may obtain a second signal along the path 333. The second signal and the first leakage signal may be input to the differential circuit 259 along the path 334.

At this time, the first signal input to the difference circuit 259 can be expressed by Equation 3 below, and the second signal and the first leakage signal can be expressed by Equation 4 below.

In Equation 3, CPL is the coupling ratio of coupler 230, V is the transmit signal on signal path 205, α is the gain set at amplifier 253 during event detection operation, and ϕ is the event detection operation It indicates the phase shift of the phase shifter 255.

In Equation 4, A ₂ is the gain set on the amplifier 251 during the event detection operation, CPL is the coupling ratio of the coupler 230, V is the transmit signal on the signal path 205, and Γ is the antenna ( 220), and ISO represents coupler isolation. In Equation 3, the signal represented by CPL*Γ is the second signal, and the signal represented by ISO is the first leakage signal of the transmission signal.

Differential circuit 259 may generate a differential signal. The generated differential signal may be transmitted to the controller 270 along the path 335. The differential signal can be expressed by Equation 5 below.

Referring to Equation 5, it can be seen that the difference signal is based on the difference between reflection coefficients, with the influence of the leakage signal due to coupler isolation removed.

While the differential signal is transmitted along the path 335, the power detector 260 detects the normalized intensity of the differential signal by dividing the strength of the differential signal (P _Diff ) by the strength of the transmitted signal (P _TX ), and detects The normalized intensity can be transmitted to the ADC (265).

While the differential signal is transmitted along path 335, ADC 265 may convert the detected normalized intensity into a digital signal and transmit the digital signal to controller 270.

In one embodiment, the controller 270 outputs the normalized intensity of the differential signal obtained during the event detection operation to an external source (e.g., the processor 110 of FIG. 1 and/or the communication processor 130 of FIG. 1) through the amplifier 289. )). In one embodiment, the processor 110 of FIG. 1 and/or the communication processor 130 of FIG. 1 compares the normalized intensity of the differential signal and the reference intensity (TH _max ) to determine whether control of transmission of the wireless signal is necessary. can be identified. For example, when the normalized intensity of the difference signal exceeds the reference intensity (TH _max ), the communication processor 130 may identify that control of transmission of the wireless signal is necessary. In one embodiment, when control of transmission of a wireless signal is necessary, the communication processor 130 may reduce the strength (P _TX ) of the transmission signal. For example, according to a command from the communication processor 130, the controller 270 may reduce the strength of the transmission signal (P _TX ) by reducing the gain of the amplifier 213. In another embodiment, when control of transmission of a wireless signal is necessary, the communication processor 130 may change the antenna through which the transmission signal is output. For example, according to a command from the communication processor 130, the controller 270 selects an antenna other than the antenna 220 (e.g., one of the plurality of array antennas 171, 173, 175, and 177 in FIG. 1). A transmission signal can be output. For example, when a wireless signal is being transmitted through the first antenna module 171 and the antenna through which the transmission signal is output is changed to the second antenna module 173, the controller 270 controls the second antenna module 173. A transmission signal can be output through .

In one embodiment, the parameter control circuit 285 may determine whether to perform a parameter adjustment operation based on the normalized strength of the difference signal obtained during the event detection operation. For example, the parameter control circuit 285 may identify that a parameter adjustment operation is necessary when the normalized intensity of the difference signal is less than or equal to the reference intensity (TH _floor ). In one embodiment, the reference intensity (TH _floor ) may be lower than the reference intensity (TH _max ).

FIG. 3C shows signal flow according to a first parameter adjustment operation according to an embodiment of the present disclosure.

In one embodiment, the controller 270 may set the specified gain (A ₂ ) to the amplifier 251 during the first parameter adjustment operation.

In one embodiment, the controller 270 may control the switch 215 to connect the transmission path 203 and the signal path 205 during the first parameter adjustment operation. In one embodiment, the controller 270 may make a first switching connection to the switch 235 such that the first leakage signal and the second signal are input to the difference circuit 259 during the first parameter adjustment operation. In one embodiment, the controller 270 may open the switch 257 so that the first signal is not input to the difference circuit 259 through the second signal path 245 during the first parameter adjustment operation.

As the controller 270 controls the switches 215, 235, and 257, paths 351, 352, 353, and 354 can be created.

When the transmission signal along the path 351 is transmitted to the antenna 220 through the amplifier 213 and the switch 215, the coupler 230 may obtain the first signal and the first leakage signal. At this time, the first signal may not be input to the difference circuit 259 as the switch 257 is opened.

When the transmission signal is reflected from the antenna 220, the coupler 230 may acquire a second signal along the path 352. The second signal and the first leakage signal may be input to the differential circuit 259 along the path 353.

Differential circuit 259 may generate a differential signal. The generated differential signal may be transmitted to the controller 270 along path 354. The differential signal can be expressed by Equation 4 above.

While the differential signal is propagated along the path 354, the power detector 260 detects the normalized intensity of the differential signal by dividing the strength of the differential signal (P _Diff ) by the strength of the transmitted signal (P _TX ), and detects The normalized intensity can be transmitted to the ADC (265).

While the differential signal is propagated along path 354, ADC 265 may convert the detected normalized intensity into a digital signal and transmit the digital signal to controller 270.

In one embodiment, the parameter control circuit 285 of the controller 270 may identify the gain (α) corresponding to the frequency of the transmission signal based on the digital signal. For example, gain (α) may be the normalized intensity of the difference signal divided by the coupling ratio.

FIG. 3D shows signal flow according to a second parameter adjustment operation according to an embodiment of the present disclosure.

In one embodiment, the controller 270 may set the specified gain (A ₂ ) to the amplifier 251 during the second parameter adjustment operation.

In one embodiment, the parameter control circuit 285 may set the identified gain (α) to the amplifier 253 during the first parameter adjustment operation. In one embodiment, the parameter control circuit 285 may set the gain (α) to the amplifier 253 through the control path 381.

In one embodiment, the parameter control circuit 285 may sequentially change the phase shift (ϕ) of the phase shifter 255 during the second parameter adjustment operation. In one embodiment, the parameter control circuit 285 may increase or decrease the phase shift (ϕ) of the phase shifter 255 at specified intervals. In one embodiment, the parameter control circuit 285 may set the phase shift (ϕ) of the phase shifter 255 through the control path 385.

In one embodiment, the controller 270 may control the switch 215 to connect the transmission path 203 and the signal path 205 during the second parameter adjustment operation. In one embodiment, the controller 270 makes a first switching connection to the switch 235 such that the first signal is input to the differential circuit 259 through the second signal path 245 during the second parameter adjustment operation, The switch 257 can be closed. In one embodiment, as the switch 235 is connected to the first switching, the first leakage signal and the second signal may be input to the difference circuit 259 through the first signal path 241 during the second parameter adjustment operation. there is.

As the controller 270 controls the switches 215, 235, and 257, paths 371, 372, 373, 374, and 375 can be created.

When the transmission signal along the path 371 is transmitted to the antenna 220 through the amplifier 213 and the switch 215, the coupler 230 may obtain the first signal and the first leakage signal.

As the switch 235 is connected to the first switching connection and the switch 257 is closed, the first signal may be input to the differential circuit 259 along the path 372.

When the transmission signal is reflected from the antenna 220, the coupler 230 may obtain a second signal along the path 373. The second signal and the first leakage signal may be input to the difference circuit 259 along the path 374.

Differential circuit 259 may generate a differential signal. The generated differential signal may be transmitted to the controller 270 along the path 375.

While the differential signal is transmitted along the path 375, the power detector 260 detects the normalized intensity of the differential signal by dividing the strength of the differential signal (P _Diff ) by the strength of the transmitted signal (P _TX ), and detects The normalized intensity can be transmitted to the ADC (265).

While the differential signal is transmitted along path 375, ADC 265 may convert the detected normalized intensity into a digital signal and transmit the digital signal to controller 270.

In one embodiment, the parameter control circuit 285 of the controller 270 may determine whether the normalized intensity of the difference signal is less than or equal to the reference intensity (TH _zero ). In one embodiment, the reference intensity (TH _zero ) may be lower than the reference intensity (TH _floor ).

In one embodiment, when the normalized intensity of the difference signal is less than or equal to the reference intensity (TH _zero ), the parameter control circuit 285 may store the identified gain (α) and phase shift (ϕ) in the memory 287. The parameter control circuit 285 may store the identified gain (α) and phase shift (ϕ) in the memory 287 according to the FIFO method. The parameter control circuit 285 may store the gain (α) and phase shift (ϕ) in the entity corresponding to the frequency of the transmission signal in the parameter tables (e.g., Table 1 and Table 2) stored in the memory 287.

In one embodiment, when the normalized intensity of the difference signal exceeds the reference intensity (TH _zero ), the parameter control circuit 285 may change the phase shift (ϕ) of the phase shifter 255 to the next phase shift.

In another embodiment, if the normalized intensity of the difference signal obtained at all phase shifts of the identified gain (α) exceeds the reference intensity (TH _zero ), the parameter control circuit 285 may adjust the gain (α). . Thereafter, the controller 270 may perform the second parameter adjustment operation again based on the adjusted gain (α).

Figure 4 shows a signal sequence according to an embodiment of the present disclosure.

Referring to FIG. 4, in the sequences 401 and 405, reception operations (RX) 411, 415, 431, and 435 and transmission operations (TX) 413 and 433 may be performed alternately.

The signal sequence 401 may include four sub-sections 421, 423, 425, and 427. The sub-section 421 may be a section in which a CLPC operation is performed. The sub-section 423 may be a section in which an event detection operation is performed. The sub-section 425 may be a section in which the first parameter adjustment operation is performed. The sub-section 427 may be a section in which a second parameter adjustment operation is performed.

On the other hand, the signal sequence 405 may include two sub-sections 441, 443, and 445. The sub-section 441 may be a section in which a CLPC operation is performed. The sub-section 443 may be a section in which an event detection operation is performed. The sub-section 445 may be a section in which the CLPC operation, event detection operation, first parameter adjustment operation, and second parameter adjustment operation are not performed.

The signal sequence 401 has sub-intervals 425 and 427 for a first parameter adjustment operation and a second parameter adjustment operation as the normalized intensity of the difference signal is less than or equal to the reference intensity (TH _floor ) according to the event detection operation. It indicates that more exists. For example, in the signal sequence 401, when the normalized intensity of the difference signal obtained according to the event detection operation in the sub-interval 423 is less than or equal to the reference intensity (TH _floor ), the controller 270 performs the transmission operation 413. It indicates that the remaining time sections among the allocated time sections are allocated to sub-sections 425 and 427 for the first parameter adjustment operation and the second parameter adjustment operation.

On the other hand, the signal sequence 405 indicates that sub-intervals for the first parameter adjustment operation and the second parameter adjustment operation do not exist as the normalized intensity of the difference signal exceeds the reference intensity (TH _floor ) according to the event detection operation. indicates. For example, the signal sequence 405 is such that, when the normalized intensity of the difference signal obtained according to the event detection operation in the sub-interval 443 exceeds the reference intensity (TH _floor ), the controller 270 performs the transmission operation 433 ) indicates that the remaining time sections among the allocated time sections are not allocated to sub-sections for the first parameter adjustment operation and the second parameter adjustment operation.

FIG. 5A shows another structure of the RFFE 510 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 200 of FIG. 2, the RFFE 510 of FIG. 5A may have a structure in which the phase shifter 511 is shared by the reception path 201 and the second signal path 245.

The controller 270 can control the open-close of the switches 521 and 525 so that the phase shifter 511 is used in different signal paths 201 and 245 during transmission or reception.

In one embodiment, the controller 270 may open the switches 521 and 525 while a wireless signal is received from the antenna 220. In one embodiment, the controller 270 may open or close the switches 521 and 525 while a wireless signal is transmitted from the antenna 220. For example, the controller 270 may open the switches 521 and 525 during the CLPC operation and the first parameter adjustment operation. For another example, the controller 270 may close the switches 521 and 525 during an event detection operation and a second parameter adjustment operation.

FIG. 5B shows another structure of the RFFE 530 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 200 in FIG. 2, the RFFE 530 in FIG. 5B has a structure in which the amplifier 531 and the phase shifter 535 are shared by the reception path 201 and the second signal path 245. You can have it.

The controller 270 controls the open-close of the switches 541 and 545 so that the amplifier 531 and phase shifter 535 are used in different signal paths 201 and 245 during transmission or reception. You can.

In one embodiment, the controller 270 may open the switches 541 and 545 while a wireless signal is received from the antenna 220. In one embodiment, the controller 270 may open or close the switches 541 and 545 while a wireless signal is transmitted from the antenna 220. For example, the controller 270 may open switches 541 and 545 during a CLPC operation and a first parameter adjustment operation. For another example, the controller 270 may close the switches 541 and 545 during an event detection operation and a second parameter adjustment operation.

FIG. 5C shows another structure of the RFFE 550 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 200 of FIG. 2, the RFFE 550 of FIG. 5C may have a structure in which the amplifier 551 is shared by the reception path 201 and the second signal path 245.

In order for the amplifier 551 to be used in different signal paths 201 and 245 during transmission or reception, the controller 270 may control the open-closing of the switches 561 and 565.

In one embodiment, the controller 270 may open the switches 561 and 565 while a wireless signal is received from the antenna 220. In one embodiment, the controller 270 may open or close the switches 561 and 565 while a wireless signal is transmitted from the antenna 220. For example, the controller 270 may open switches 561 and 565 during a CLPC operation and a first parameter adjustment operation. For another example, the controller 270 may close the switches 561 and 565 during an event detection operation and a second parameter adjustment operation.

FIG. 6 illustrates an RFFE 600 and an array antenna 650 of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 6, the RFFE 600 may include four circuit modules 611, 613, 615, and 617, a control module 620, and a distribution and combination module 630.

Each of the four circuit modules 611, 613, 615, and 617 may include a plurality of amplifiers, a plurality of switches, a coupler, a phase shifter, and a differential circuit. The connection relationship between the circuit configurations of the circuit modules 611, 613, 615, and 617 of FIG. 6 may be the same as the connection relationship of the circuit configurations of the RFFE 200 of FIG. 2.

The control module 620 includes a switch to which four circuit modules are connected, a power detector connected to the switch (e.g., power detector 260 in FIG. 2), an ADC (e.g., ADC 265 in FIG. 2), and a controller ( Example: the controller 270 of FIG. 2) may be further included.

The distribution and combination module 630 transfers transmission signals from the RFIC (e.g., RFIC 150 in FIG. 1) to four circuit modules 611, 613, 615, and 617, and four circuit modules 611 , 613, 615, and 617) may include circuit elements for transmitting received signals from the RFIC 150. The distribution and combining module 630 may include at least one amplifier, at least one switch, a phase locked loop (PLL), a splitter, a combiner, or a combination thereof.

The array antenna 650 may include four antennas. Each of the four circuit modules 611, 613, 615, and 617 may be connected to each of the four antennas of the array antenna 650.

The control module 620 can control each of the four circuit modules 611, 613, 615, and 617 to perform a CLPC operation, event detection operation, and parameter adjustment operation.

FIG. 7A illustrates an RFFE 710 and an array antenna 650 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 600 in FIG. 6, the RFFE 710 of FIG. 7A has phase shifters 731, 732, 733, and 734 of each of the four circuit modules 711, 713, 715, and 717. It may have a structure shared by the reception paths 701, 702, 703, and 704 and each of the second signal paths 705, 706, 707, and 708.

Control module 620 such that phase shifters 731, 732, 733, 734 are used in different signal paths 701, 702, 703, 704, 705, 706, 707, 708 during transmission or reception. Can control the open-close of the switches 721, 722, 723, 724, 725, 726, 727, and 728. For example, control module 620 can control the open-close of switches 721 and 725 such that phase shifter 731 is used in different signal paths 701 and 705 during transmission or reception. there is.

In one embodiment, the control module 620 may open the switches 721, 722, 723, 724, 725, 726, 727, and 728 while a wireless signal is received from the array antenna 650.

In one embodiment, the control module 620 may open or close the switches 721, 722, 723, 724, 725, 726, 727, and 728 while a wireless signal is transmitted from the array antenna 650. . For example, the control module 620 may open the switches 721, 722, 723, 724, 725, 726, 727, and 728 during the CLPC operation and the first parameter adjustment operation. For another example, the control module 620 may close the switches 721, 722, 723, 724, 725, 726, 727, and 728 during the event detection operation and the second parameter adjustment operation.

FIG. 7B shows an RFFE 730 and an antenna 650 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 600 of FIG. 6, the RFFE 730 of FIG. 7B has four circuit modules 741, 743, 745, and 747, each of the amplifiers 761, 762, 763, and 764, and each of the A structure in which the phase shifters (765, 766, 767, and 768) are shared with each of the reception paths (701, 702, 703, and 704) and each of the second signal paths (705, 706, 707, and 708). You can have it.

Respective amplifiers 761, 762, 763, and 764, and respective phase shifters 765, 766, 767, and 768 provide different signal paths 701, 702, 703, 704, and 705 during transmission or reception. , 706, 707, 708), the control module 620 can control the open-close of the switches 751, 752, 753, 754, 755, 756, 757, and 758. For example, control module 620 may open switches 751 and 765 such that amplifier 761 and phase shifter 765 are used in different signal paths 701 and 705 during transmission or reception. -Close can be controlled.

In one embodiment, the control module 620 may open the switches 751, 752, 753, 754, 755, 756, 757, and 758 while a wireless signal is received from the array antenna 650.

In one embodiment, the control module 620 may open or close the switches 751, 752, 753, 754, 755, 756, 757, and 758 while a wireless signal is transmitted from the array antenna 650. . For example, the control module 620 may open the switches 751, 752, 753, 754, 755, 756, 757, and 758 during the CLPC operation and the first parameter adjustment operation. For another example, the control module 620 may close the switches 751, 752, 753, 754, 755, 756, 757, and 758 during the event detection operation and the second parameter adjustment operation.

FIG. 7C shows an RFFE 770 and an antenna 650 of an electronic device according to an embodiment of the present disclosure.

Compared to the RFFE 600 in FIG. 6, the RFFE 770 in FIG. 7C shows that the amplifiers 791, 792, 793, and 794 of the four circuit modules 771, 773, 775, and 777 each receive It may have a structure shared by the paths 701, 702, 703, and 704 and each of the second signal paths 705, 706, 707, and 708.

In order for the amplifiers 791, 792, 793, 794 to be used in different signal paths 701, 702, 703, 704, 705, 706, 707, 708 during transmission or reception, the control module 620 uses switches. The open-close of (781, 782, 783, 784, 785, 786, 787, 788) can be controlled.

In one embodiment, the control module 620 may open the switches 781, 782, 783, 784, 785, 786, 787, and 788 while a wireless signal is received from the array antenna 650.

In one embodiment, the control module 620 may open or close the switches 781, 782, 783, 784, 785, 786, 787, and 788 while a wireless signal is transmitted from the array antenna 650. . For example, the control module 620 may open the switches 781, 782, 783, 784, 785, 786, 787, and 788 during the CLPC operation and the first parameter adjustment operation. As another example, the control module 620 may close the switches 781, 782, 783, 784, 785, 786, 787, and 788 during the event detection operation and the second parameter adjustment operation.

FIG. 8 is a flowchart showing an event detection operation of the electronic device 101 according to an embodiment of the present disclosure. The operations of FIG. 8 may be performed by the controller 270 and/or the communication processor 130 of FIG. 2.

Referring to FIG. 8, in operation 810, the controller 270 may identify wireless signal transmission information. The wireless signal transmission information may include information about the antenna (or array antenna) that transmits the wireless signal, the strength of the transmission signal (P _TX ), and the frequency of the transmission signal.

For example, the controller 270 may identify that a wireless signal of a specific frequency is transmitted through the first array antenna 171 among the plurality of array antennas 171, 173, 175, and 177. Thereafter, the controller 270 may identify the strength (P _TX ) of the wireless signal through a CLPC operation for the first array antenna 171.

In operation 820, the controller 270 may identify a differential signal based on a setting value corresponding to wireless signal transmission information. The set values may be parameters indicated by tables (eg, Table 1 and Table 2) stored in the memory 287 of FIG. 2.

The controller 270 may identify a setting value corresponding to wireless signal transmission information based on tables corresponding to the first array antenna 171. The controller 270 may control an amplifier (e.g., amplifier 253 in FIG. 2) and/or a phase shifter (e.g., phase shifter 255 in FIG. 2) based on the identified set value. . For example, the controller 270 may set the gain (α) of the amplifier 253 and the phase shift (ϕ) of the phase shifter 255.

The controller 270 may control the switch 235 to make the first switching connection and control the switch 257 to be closed.

The controller 270 can identify the differential signal (or a digital signal of the normalized intensity of the differential signal) through the paths 331, 332, 333, 334, and 335 generated by controlling the switches 235 and 257. You can.

At operation 830, the controller 270 may determine whether the differential signal satisfies a specified condition. For example, whether the difference signal satisfies a specified condition may be based on a comparison result between the normalized intensity of the difference signal and the reference intensity (THmax).

In one embodiment, when the normalized intensity of the difference signal is lower than the reference intensity (TH _max ), the controller 270 may determine that the difference signal satisfies a specified condition. In one embodiment, if the normalized intensity of the difference signal is not lower than the reference intensity (TH _max ), the controller 270 may determine that the difference signal does not meet a specified condition.

If it is determined that the differential signal satisfies the specified condition (yes determination), the controller 270 may perform operation 840.

If it is determined that the differential signal does not meet the specified condition (no decision), the controller 270 may selectively perform operation 850. For example, when the normalized intensity of the difference signal is below the reference intensity (TH _floor ), the controller 270 may selectively perform operation 850. Here, the reference intensity (TH _floor ) may be lower than the reference intensity (TH _max ).

In operation 840, the controller 270 may control wireless signal transmission.

In one embodiment, the controller 270 may reduce the strength (P _TX ) of the transmission signal. In another embodiment, the controller 270 may change the antenna through which the transmission signal is output. For example, the controller 270 may output a transmission signal to the second array antenna 173 rather than the first array antenna 171.

Operations 820, 830, and 840 may correspond to the event detection operation described with reference to FIG. 3B.

In operation 850, the controller 270 may adjust a setting value corresponding to wireless signal transmission information. The controller 270 may update parameters corresponding to wireless signal transmission information among the parameters indicated by the tables (eg, Table 1 and Table 2) stored in the memory 287 of FIG. 2.

Operation 850 can be described with reference to FIG. 9 .

Operation 850 may correspond to the first parameter adjustment operation described with reference to FIG. 3C and the second parameter adjustment operation described with reference to FIG. 3D.

FIG. 9 is a flowchart illustrating operations according to a parameter adjustment mode of an electronic device according to an embodiment of the present disclosure. The operations of FIG. 9 may be included in operation 850 of FIG. 8 . The operations of FIG. 9 may be performed by the controller 270 and/or the communication processor 130 of FIG. 2.

Referring to FIG. 9, in operation 910, the controller 270 may identify the magnitude of the coupled reflection signal.

In one embodiment, the controller 270 may control the switch 235 to be connected to the first switching and control the switch 257 to be open.

The controller 270 may identify the magnitude of the coupled reflection signal through the paths 351, 352, 353, and 354 generated by controlling the switches 215, 235, and 257.

At operation 920, controller 270 may identify the gain based on the magnitude of the coupled reflected signal.

In one embodiment, the gain may be identified based on the magnitude and coupling ratio of the coupled reflected signal of the controller 270.

Operations 910 and 920 may correspond to the first parameter adjustment operation described with reference to FIG. 3C.

At operation 930, controller 270 may set the gain and initial phase shift.

In one embodiment, the controller 270 sets the gain (α) identified in operation 920 to the amplifier 253 and sets an initial phase shift (e.g., 0 degrees) to the phase shifter 255. You can.

In operation 940, the controller 270 may determine whether the difference signal (or a digital signal of the normalized intensity of the difference signal) based on the identified gain and phase is less than the reference intensity (TH _zero ).

If the differential signal is less than the reference intensity (TH _zero ) in operation 940 (Yes decision), the controller 270 may perform operation 980. If the differential signal is greater than or equal to the reference intensity (TH _zero ) in operation 940 (no decision), the controller 270 may perform operation 950.

At operation 950, controller 270 may determine whether gain adjustment is necessary.

In one embodiment, differential signals are identified for all phases at the current gain, and if the strength of the identified differential signals is less than the reference strength (TH _zero ), the controller 270 may determine that gain adjustment is necessary. there is.

If it is determined in operation 950 that gain adjustment is necessary (yes determination), the controller 270 may perform operation 960. If it is determined in operation 950 that gain adjustment is not necessary (no determination), the controller 270 may perform operation 970.

At operation 960, controller 270 may adjust the gain. In one embodiment, controller 270 may adjust the gain to the next gain. Here, the next gain may be a gain increased or decreased by a specified amount from the current gain.

At operation 970, controller 270 may change the phase shift. The controller 270 may change the phase shift to the next phase shift. Here, the next phase shift may be a phase shift that increases or decreases the current phase shift by a specified amount.

At operation 980, the controller 270 may update the settings table with the identified settings. The controller 270 may store the identified gain (α) and phase shift (ϕ) in the memory 287. The controller 270 may store the identified gain (α) and phase shift (ϕ) in the memory 287 according to the FIFO method. The controller 270 may store the gain (α) and phase shift (ϕ) in the entity corresponding to the frequency of the transmission signal in the parameter tables (e.g., Table 1 and Table 2) stored in the memory 287.

Operations 930, 940, 950, 960, 970, and 980 may correspond to the second parameter adjustment operation described through FIG. 3D.

FIG. 10 is a flowchart showing a calibration operation of an electronic device according to an embodiment of the present disclosure. The operations of FIG. 10 may be performed by the controller 270 and/or the communication processor 130 of FIG. 2.

Referring to FIG. 10, in operation 1010, the controller 270 may identify the antenna and frequency corresponding to the current round. For example, the controller 270 may identify the ith array antenna among the plurality of array antennas 171, 173, 175, and 177, and the jth frequency among the plurality of frequencies. Here, i may be an integer equal to or greater than the number of the array antennas 171, 173, 175, and 177, and j may be an integer equal to or greater than the number of frequency bands supported by the communication processor 130.

In operation 1020, the controller 270 may perform a parameter adjustment operation. The controller 270 may perform a parameter adjustment operation by performing operations 910 to 980 of FIG. 9 .

In operation 1030, the controller 270 may determine whether it is necessary to change the antenna and frequency.

For example, if M parameters (i.e., gain and phase shift) corresponding to the i-th array antenna and the j-th frequency are obtained, the controller 270 may determine that the antenna and frequency need to be changed. Here, M may represent the number of parameters stored in the memory 287.

In one embodiment, when M parameters (i.e. gain and phase shift) for all the plurality of array antennas 171, 173, 175, and 177 and the plurality of frequencies are obtained, the controller 270 And it may be determined that no frequency change is necessary. For another example, when i represents the number of a plurality of array antennas 171, 173, 175, and 177, and j represents the number of frequency bands supported by the communication processor 130, the controller 270: It may be determined that antenna and frequency changes are not necessary.

If it is identified in operation 1030 that an antenna and frequency change are required (yes decision), the controller 270 may perform operation 1010 again. If it is determined in operation 1030 that antenna and frequency changes are not required (no decision), the controller 270 may perform operation 1040.

In operation 1040, the controller 270 may update the settings value table with the settings identified based on operation 1020.

The controller 270 adjusts parameters for adjusting the gain (or degree of amplification) of the amplifiers 251 and 253 and the phase shift of the phase shifter 255 based on the settings identified based on operation 1020. Parameters for this can be stored in the memory 287.

The electronic device 101 according to an embodiment of the present disclosure includes an antenna 220, a power amplifier 213 that transmits an output signal to the antenna 220 through a signal path 205, and a power amplifier 213 coupled to the output signal. A coupler 230 for obtaining a first signal and a second signal coupled with a reflected signal of the output signal reflected from the antenna 220, the size of one of the first signal or the second signal, and/ or an equalizing module that changes the phase to generate a changed signal, a difference circuit 259 that generates a difference signal between the changed signal and the remaining one of the first signal or the second signal, and based on the difference signal, It may include a controller 270 configured to control transmission of wireless signals.

In one embodiment, the controller 270 of the electronic device 101 may be configured to control the transmission of the wireless signal based on the size of the difference signal exceeding a specified first size.

In one embodiment, the antenna 220 of the electronic device 101 includes two or more array antennas 171, 173, 175, and 177, and the controller 270 is configured to transmit the output signal. configured to control the transmission of the wireless signal by changing the antenna from the first array antenna 171 to the second array antenna 173 among the array antennas 171, 173, 175, and 177, and the first The array antenna 171 may be spaced apart from the second array antenna 173 by a specified distance or more.

In one embodiment, the antenna 220 of the electronic device 101 may be configured to control the transmission of the wireless signal by controlling the gain of the power amplifier 213.

In one embodiment, the electronic device 101 further includes a switch 235 electrically connected to the coupler 253, and the equalizing module includes a first output port of the switch 235 and the difference circuit. A first power amplifier 251 located in the first signal path 241 between the first input port of 259, the second output port of the switch 235 and the second input port of the differential circuit 259. It may include a second power amplifier 253 located in the second signal path 245, and a phase shifter 255 located in the second signal path 245.

In one embodiment, the second power amplifiers 253, 531, and 551 of the electronic device 101 are located in a signal path through which the received signal obtained from the antenna 220 is input to the communication processor 130, The size of the received signal can be amplified.

In one embodiment, the phase shifters 255, 511, and 535 of the electronic device 101 are located in a signal path through which the received signal obtained from the antenna 220 is input to the communication processor 130, The phase of the received signal can be changed.

In one embodiment, the controller 270 of the electronic device 101 may be configured to determine the gain of the second power amplifier 253 based on the frequency of the output signal.

In one embodiment, the controller 270 of the electronic device 101 may be configured to determine the degree of phase shift of the phase shifter 255 based on the frequency of the output signal.

In one embodiment, the antenna of the electronic device 101 includes a plurality of antennas, and the controller 270 of the electronic device 101 selects a first antenna through which the output signal is transmitted among the plurality of antennas. To determine the gain of the second power amplifier and/or the degree of phase shift of the phase shifter based on whether the antenna and at least one second antenna other than the first antenna among the plurality of antennas are operating. It can be configured.

In one embodiment, the controller 270 of the electronic device 101 transmits the first signal to the first signal path 241 during the first sub-intervals 421 and 441 of the transmission intervals 413 and 433. The switch 235 is controlled to be transmitted to the difference circuit 259 through, and the first signal is transmitted to the second signal path ( 245) and is configured to control the switch 235 so that the signal is transmitted to the difference circuit 259, the first sub-sections 421 and 441 are sections for adjusting the power of the output signal, and the second The sub-sections 423 and 443 may be sections for determining whether to control the transmission of the wireless signal.

In one embodiment, the controller 270 of the electronic device 101 transmits the signal transmitted to the difference circuit 259 through the first signal path 241 during the third sub-interval 427 of the transmission interval. configured to identify the magnitude of the second signal and identify the first parameter based on the identified magnitude of the second signal, wherein the third sub-interval 427 is configured to include the second power amplifier 253 and This may be a section for identifying a related first parameter.

In one embodiment, the controller 270 of the electronic device 101 controls the difference circuit ( 259), and the fourth sub-interval 427 is configured to control the first parameter associated with the second power amplifier 253 and/or the first parameter associated with the phase shifter 255. 2 This may be a section for identifying parameters.

In one embodiment, the controller 270 of the electronic device 101, based on the size of the difference signal identified during the second sub-interval 423 and 443 being less than or equal to a specified second size, It may be configured to identify the first parameter and/or the second parameter during 4 sub-intervals 429.

In one embodiment, the controller 270 of the electronic device 101 is configured to identify the second parameter such that the magnitude of the difference signal is less than or equal to the specified second magnitude during the fourth sub-interval 429. It can be configured.

In one embodiment, the controller 270 of the electronic device 101 updates a parameter table (e.g., Table 1, Table 2) based on the identified first parameter and/or the identified second parameter. The parameter table may store first parameters and second parameters set for each of a plurality of operating frequencies.

In one embodiment, the antenna of the electronic device 101 may include a plurality of antennas, and the parameter table of the electronic device 101 may include parameter tables for each of the plurality of antennas.

In one embodiment, the parameter table for the first antenna among the plurality of antennas of the electronic device 101 is based on whether at least one second antenna other than the first antenna among the plurality of antennas is operating. The first and second parameters set can be stored.

A method of operating the electronic device 101 according to an embodiment of the present disclosure includes obtaining a first signal coupled with an output signal transmitted to the antenna 220 through the signal path 205, the antenna 220 ) An operation of acquiring a second signal coupled with a reflected signal of the output signal reflected from ), an operation of generating a changed signal by changing the magnitude and/or phase of one of the first signal or the second signal. , generating a differential signal between the remaining one of the first signal or the second signal and the changed signal, and controlling transmission of a wireless signal based on the differential signal.

In one embodiment, controlling the transmission of the wireless signal may include controlling the transmission of the wireless signal based on the size of the difference signal exceeding a specified first size.

A method of operating an electronic device according to an embodiment includes: identifying a first parameter related to the magnitude of the one signal, based on the magnitude of the difference signal being less than or equal to a specified second magnitude, and a phase of the one signal. Identifying a second parameter related to and updating a parameter table (e.g., Table 1, Table 2) based on the identified first parameter and/or the identified second parameter, The parameter table may store first parameters and second parameters set for each of a plurality of operating frequencies.

In one embodiment, identifying the first parameter may include identifying a magnitude of the second signal, and identifying the first parameter based on the identified magnitude of the second signal. there is.

In one embodiment, identifying the second parameter may include identifying the second parameter such that the size of the difference signal is less than or equal to the specified second size.

FIG. 11 is a block diagram of an electronic device 1101 in a network environment 1100, according to various embodiments. The electronic device of FIG. 11 may include the electronic device of FIG. 1 .

Referring to FIG. 11, in the network environment 1100, the electronic device 1101 communicates with the electronic device 1102 through a first network 1198 (e.g., a short-range wireless communication network) or a second network 1199. It is possible to communicate with at least one of the electronic device 1104 or the server 1108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 1101 may communicate with the electronic device 1104 through the server 1108. According to one embodiment, the electronic device 1101 includes a processor 1120, a memory 1130, an input module 1150, an audio output module 1155, a display module 1160, an audio module 1170, and a sensor module ( 1176), interface 1177, connection terminal 1178, haptic module 1179, camera module 1180, power management module 1188, battery 1189, communication module 1190, subscriber identification module 1196. , or may include an antenna module 1197. In some embodiments, at least one of these components (eg, the connection terminal 1178) may be omitted or one or more other components may be added to the electronic device 1101. In some embodiments, some of these components (e.g., sensor module 1176, camera module 1180, or antenna module 1197) are integrated into one component (e.g., display module 1160). It can be.

The processor 1120, for example, executes software (e.g., program 1140) to operate at least one other component (e.g., hardware or software component) of the electronic device 1101 connected to the processor 1120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 1120 stores commands or data received from another component (e.g., sensor module 1176 or communication module 1190) in volatile memory 1132. The commands or data stored in the volatile memory 1132 can be processed, and the resulting data can be stored in the non-volatile memory 1134. According to one embodiment, the processor 1120 may include a main processor 1121 (e.g., a central processing unit or an application processor) or an auxiliary processor 1123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device 1101 includes a main processor 1121 and a auxiliary processor 1123, the auxiliary processor 1123 may be set to use lower power than the main processor 1121 or be specialized for a designated function. You can. The auxiliary processor 1123 may be implemented separately from the main processor 1121 or as part of it.

The auxiliary processor 1123 may, for example, act on behalf of the main processor 1121 while the main processor 1121 is in an inactive (e.g., sleep) state, or while the main processor 1121 is in an active (e.g., application execution) state. ), together with the main processor 1121, at least one of the components of the electronic device 1101 (e.g., the display module 1160, the sensor module 1176, or the communication module 1190) At least some of the functions or states related to can be controlled. According to one embodiment, coprocessor 1123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 1180 or communication module 1190). there is. According to one embodiment, the auxiliary processor 1123 (e.g., neural network processing device) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 1101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 1108). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

The memory 1130 may store various data used by at least one component (eg, the processor 1120 or the sensor module 1176) of the electronic device 1101. Data may include, for example, input data or output data for software (e.g., program 1140) and instructions related thereto. Memory 1130 may include volatile memory 1132 or non-volatile memory 1134.

The program 1140 may be stored as software in the memory 1130 and may include, for example, an operating system 1142, middleware 1144, or application 1146.

The input module 1150 may receive commands or data to be used in a component of the electronic device 1101 (e.g., the processor 1120) from outside the electronic device 1101 (e.g., a user). The input module 1150 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).

The sound output module 1155 may output sound signals to the outside of the electronic device 1101. The sound output module 1155 may include, for example, a speaker or receiver. Speakers can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 1160 can visually provide information to the outside of the electronic device 1101 (eg, a user). The display module 1160 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module 1160 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 1170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 1170 acquires sound through the input module 1150, the sound output module 1155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 1101). Sound may be output through an electronic device 1102 (e.g., speaker or headphone).

The sensor module 1176 detects the operating state (e.g., power or temperature) of the electronic device 1101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 1176 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 1177 may support one or more designated protocols that can be used to directly or wirelessly connect the electronic device 1101 to an external electronic device (eg, the electronic device 1102). According to one embodiment, the interface 1177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 1178 may include a connector through which the electronic device 1101 can be physically connected to an external electronic device (eg, the electronic device 1102). According to one embodiment, the connection terminal 1178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 1179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 1179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 1180 can capture still images and moving images. According to one embodiment, the camera module 1180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 1188 can manage power supplied to the electronic device 1101. According to one embodiment, the power management module 1188 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 1189 may supply power to at least one component of the electronic device 1101. According to one embodiment, the battery 1189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

Communication module 1190 provides a direct (e.g., wired) communication channel or wireless communication channel between the electronic device 1101 and an external electronic device (e.g., electronic device 1102, electronic device 1104, or server 1108). It can support establishment and communication through established communication channels. Communication module 1190 operates independently of processor 1120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 1190 is a wireless communication module 1192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 1194 (e.g., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 1198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 1199 (e.g., legacy It may communicate with an external electronic device 1104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 1192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 1196 within a communication network such as the first network 1198 or the second network 1199. The electronic device 1101 can be confirmed or authenticated.

The wireless communication module 1192 may support 5G networks and next-generation communication technologies after 4G networks, for example, NR access technology (new radio access technology). NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported. The wireless communication module 1192 may support high frequency bands (e.g., mmWave bands), for example, to achieve high data rates. The wireless communication module 1192 uses various technologies to secure performance in high frequency bands, for example, beamforming, massive array multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module 1192 may support various requirements specified in the electronic device 1101, an external electronic device (e.g., electronic device 1104), or a network system (e.g., second network 1199). According to one embodiment, the wireless communication module 1192 supports Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC. Example: Downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 1197 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to one embodiment, the antenna module 1197 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 1197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for the communication method used in the communication network, such as the first network 1198 or the second network 1199, is connected to the plurality of antennas by, for example, the communication module 1190. can be selected. Signals or power may be transmitted or received between the communication module 1190 and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (eg, radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module 1197.

According to various embodiments, the antenna module 1197 may form a mmWave antenna module. According to one embodiment, a mmWave antenna module includes: a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal (e.g. commands or data) can be exchanged with each other.

According to one embodiment, commands or data may be transmitted or received between the electronic device 1101 and the external electronic device 1104 through the server 1108 connected to the second network 1199. Each of the external electronic devices 1102 or 1104 may be of the same or different type as the electronic device 1101. According to one embodiment, all or part of the operations performed in the electronic device 1101 may be executed in one or more of the external electronic devices 1102, 1104, or 1108. For example, when the electronic device 1101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 1101 does not execute the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 1101. The electronic device 1101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 1101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 1104 may include an Internet of Things (IoT) device. Server 1108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 1104 or server 1108 may be included in the second network 1199. The electronic device 1101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. As used herein, “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to that component in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” When mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. can be used A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document are one or more instructions stored in a storage medium (e.g., built-in memory 1136 or external memory 1138) that can be read by a machine (e.g., electronic device 1101). It may be implemented as software (e.g., program 1140) including these. For example, a processor (e.g., processor 1120) of a device (e.g., electronic device 1101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and this term refers to cases where data is semi-permanently stored in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or through an application store (e.g. Play Store™) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. . According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or , or one or more other operations may be added.

Claims (20)

In electronic devices,
antenna;
A power amplifier (PA) that delivers an output signal to the antenna through a signal path;
a coupler for obtaining a first signal coupled with the output signal and a second signal coupled with a reflected signal of the output signal reflected from the antenna;
An equalizing module that generates a changed signal by changing the magnitude and/or phase of one of the first signal and the second signal;
a differential circuit that generates a differential signal between the changed signal and the remaining one of the first signal or the second signal; and
A controller configured to control transmission of a wireless signal based on the differential signal,
Electronic devices.
In claim 1,
The controller is,
configured to control the transmission of the wireless signal based on the magnitude of the differential signal exceeding a specified first magnitude,
Electronic devices.
In claim 2,
The antenna includes two or more array antennas,
The controller is,
configured to control the transmission of the wireless signal by changing an antenna for transmitting the output signal from a first array antenna to a second array antenna among the array antennas;
The first array antenna is spaced apart from the second array antenna by a specified distance or more.
Electronic devices.
In claim 2,
The controller is,
configured to control the transmission of the wireless signal by controlling the gain of the power amplifier.
Electronic devices.
In claim 1,
Further comprising a switch electrically connected to the coupler,
The equalizing module is,
a first power amplifier located in a first signal path between a first output port of the switch and a first input port of the differential circuit;
a second power amplifier located in a second signal path between a second output port of the switch and a second input port of the differential circuit, and
Comprising a phase shifter located in the second signal path
Electronic devices.
In claim 5,
The second power amplifier is located in a signal path through which the received signal obtained from the antenna is input to the communication processor, and amplifies the size of the received signal.
Electronic devices.
In claim 5,
The phase shifter is located in a signal path through which the received signal obtained from the antenna is input to the communication processor, and changes the phase of the received signal.
Electronic devices.
In claim 5,
The controller is,
configured to determine the gain of the second power amplifier based on the frequency of the output signal.
Electronic devices.
In claim 5,
The controller is,
configured to determine the degree of phase shift of the phase shifter based on the frequency of the output signal.
Electronic devices.
In claim 5,
The antenna includes a plurality of antennas,
The controller is,
Based on whether a first antenna among the plurality of antennas to which the output signal is transmitted and at least one second antenna other than the first antenna among the plurality of antennas operate, a gain of the second power amplifier, and/or configured to determine the degree of phase shift of the phase shifter.
Electronic devices.
In claim 5,
The controller is,
Controlling the switch so that the first signal is transmitted to the differential circuit through the first signal path during a first sub-interval of the transmission interval,
configured to control the switch so that the first signal is transmitted to the differential circuit through the second signal path during a second sub-interval of the transmission interval,
The first sub-section is a section for adjusting the power of the output signal,
The second sub-interval is a section for determining whether to control the transmission of the wireless signal,
Electronic devices.
In claim 11,
The controller is,
Identifying the magnitude of the second signal transmitted to the difference circuit through the first signal path during the third sub-interval of the transmission interval,
configured to identify a first parameter based on the identified magnitude of the second signal,
The third sub-interval is a section for identifying the first parameter related to the second power amplifier.
Electronic devices.
In claim 12,
The controller is,
configured to control the switch so that the first signal is transmitted to the differential circuit through the second signal path during a fourth sub-interval of the transmission interval;
The fourth sub-interval is a section for identifying a first parameter related to the second power amplifier and/or a second parameter related to the phase shifter.
Electronic devices.
In claim 13,
The controller is,
configured to identify the first parameter and/or the second parameter during the fourth sub-interval based on the magnitude of the difference signal identified during the second sub-interval being less than or equal to a specified second magnitude.
Electronic devices.
In claim 14,
The controller is,
Configured to identify the second parameter such that the magnitude of the difference signal during the fourth sub-interval is less than or equal to the specified second magnitude.
Electronic devices.
In claim 12,
The controller is
configured to update a parameter table based on the identified first parameter and/or the identified second parameter,
The parameter table stores first parameters and second parameters set for each of a plurality of operating frequencies.
Electronic devices.
In claim 16,
The antenna includes a plurality of antennas,
The parameter table includes parameter tables for each of the plurality of antennas.
Electronic devices.
In claim 17,
The parameter table for a first antenna among the plurality of antennas stores first parameters and second parameters set based on whether at least one second antenna other than the first antenna among the plurality of antennas is operating. doing
Electronic devices.
In a method of operating an electronic device,
An operation of obtaining a first signal coupled with an output signal transmitted to an antenna through a signal path,
An operation of obtaining a second signal coupled with a reflected signal of the output signal reflected from the antenna,
An operation of generating a changed signal by changing the magnitude and/or phase of one of the first signal or the second signal,
An operation of generating a difference signal between the changed signal and the remaining one of the first signal or the second signal, and
Comprising an operation of controlling transmission of a wireless signal based on the differential signal.
method.
In claim 19,
The operation of controlling the transmission of the wireless signal is,
Controlling the transmission of the wireless signal based on the magnitude of the differential signal exceeding a specified first magnitude.
method.