WO2020071653A1 - Electronic device and method for controlling maximum amplification level of amplifier - Google Patents

Abstract

An electronic device according to various embodiments of the present invention can comprise: a first antenna for transmitting a signal of a first frequency band; a second antenna for receiving a signal of a second frequency band; a first communication circuit electrically connected to the first antenna; a second communication circuit electrically connected to an amplifier, wherein the second communication circuit is electrically connected to the second antenna, allows a maximum amplification level thereof to be set to a first gain, and includes the amplifier set to amplify the signal of the second frequency band; and at least one processor electrically connected to the first communication circuit and the second communication circuit.

Description

Electronic device and method for controlling the maximum amplification level of the amplifier

Embodiments disclosed in this document relate to electronic devices that communicate using a plurality of frequency bands.

BACKGROUND With the development of IT (information technology), various types of electronic devices, such as smart phones and tablet personal computers (PCs), have been widely used. The electronic device may wirelessly communicate with other electronic devices or base stations using an antenna module. According to a wireless communication standard, a mobile network operator can provide a wireless communication service to a user of the electronic device by using a frequency band granted by a country (or institution) among various frequency bands.

The frequency band may be divided into, for example, a frequency range defined by a 3rd generation partnership project (3GPP) as a standard. One frequency band may have a bandwidth of tens to hundreds of MHz.

Technologies such as carrier aggregation (CA) have been developed to improve the quality or communication speed of signals received by electronic devices. Each country and / or carriers are providing users with improved communication services through so-called CAs that aggregate two or more frequency bands. In addition, recently, 5th generation mobile communication (5G) technology using signals in an ultra-high frequency band has been developed. When a signal in an ultra-high frequency band is used, the wavelength length of the signal may be shortened in millimeters, and a wider bandwidth may be used, so that a greater amount of information can be transmitted or received.

When the electronic device performs CA communicating using signals of different frequency bands, the signals may influence each other within the electronic device. For example, the electronic device may transmit a signal in a first frequency band using a first antenna, and transmit a signal in a second frequency band using a second antenna. Circuits for transmitting signals and circuits for receiving signals in the electronic device are physically separated, but at least some of the transmission signals are transmitted to the reception circuit or at least some of the reception signals are transmitted by a coupling effect between the circuits It may happen that it is transmitted to the circuit. In this case, the transmission signal and the reception signal can affect each other.

For example, the 5G mobile communication method includes a non-standalone (NSA) or standalone (SA) method, and among them, in the case of the NSA method, the electronic device may simultaneously perform 5G communication and LTE communication. . In this case, if the frequency band of the received signal for 5G communication corresponds to the multiplication frequency of the frequency band of the transmitted signal for LTE communication, the reception sensitivity of the received signal may be deteriorated. For example, the received signal may be influenced by the harmonic component of the transmitted signal and the reception sensitivity may be deteriorated.

The embodiments disclosed in the present document may provide an electronic device for solving the above-mentioned problems and the problems raised in this document.

An electronic device according to an embodiment disclosed in the present disclosure includes a first antenna for transmitting a signal in a first frequency band, a second antenna for receiving a signal in a second frequency band, and an electrical connection to the first antenna The first communication circuit, the second communication circuit electrically connected to the amplifier, and the second communication circuit are electrically connected to the second antenna, the maximum amplification level is set to the first gain, and the second frequency band is And an amplifier configured to amplify a signal, and includes at least one processor electrically connected to the first communication circuit and the second communication circuit, wherein the at least one processor uses the first antenna to Control the first communication circuit to transmit a signal in one frequency band, and receive the signal in the second frequency band using the second antenna. A second gain in which the maximum amplification level of the amplifier is less than the first gain, based on a determination to control the second communication circuit, and wherein the second frequency band includes at least a part of the multiplication frequency of the first frequency band It can be set to control the second communication circuit to change to.

An electronic device according to an embodiment disclosed in the present disclosure includes a first communication circuit including a transmission amplification circuit configured to amplify a transmission signal in a first frequency band, a maximum amplification level of a first gain, and a second frequency band A second communication circuit including a receive amplification circuit configured to amplify a received signal, and at least one processor electrically connected to the first communication circuit and the second communication circuit, wherein the at least one processor comprises: If the second frequency band includes at least the multiplication frequency of the first frequency band, the maximum amplification level of the receiving amplifier circuit is changed to a second gain smaller than the first gain, and the second frequency band is the first frequency band. If the multiplication frequency of is not included, the maximum amplification level of the reception amplification circuit is maintained as the first gain, and the reception increase It may be set to amplify the received signal through the circuit.

According to an embodiment disclosed in the present disclosure, a method of reducing a decrease in reception sensitivity of a received signal due to a transmitted signal includes: transmitting a signal in a first frequency band using a first antenna, and using a second antenna Receiving a signal in the 2 frequency band, and changing the maximum amplification level from a first gain to a second gain smaller than the first gain when the second frequency band includes at least a part of the multiplication frequency of the first frequency band It may include the operation.

According to the embodiments disclosed in the present document, the electronic device may reduce a decrease in communication performance even when performing CAs that communicate using signals of different frequency bands simultaneously. In addition, various effects that can be directly or indirectly identified through this document may be provided.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.

2 is a block diagram of an electronic device, according to an embodiment.

3A illustrates reception sensitivity according to a frequency band of a transmission signal and a frequency band of a reception signal in an electronic device, according to an embodiment.

3B illustrates a degree of sensitivity deterioration of a received signal due to a transmitted signal in an electronic device, according to an embodiment.

3C illustrates the gain of an amplifier according to a component of a transmission signal in an electronic device, according to an embodiment.

4 is a flowchart illustrating a method for reducing a decrease in sensitivity of a received signal due to a transmitted signal in an electronic device, according to an embodiment.

5 illustrates a reception sensitivity of a reception signal according to transmission power of a transmission signal in an electronic device, according to an embodiment.

6 is a flowchart illustrating a method for reducing a decrease in sensitivity of a received signal due to a transmitted signal in an electronic device according to another embodiment.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.

Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through the first network 198 (eg, a short-range wireless communication network), or the second network 199 It may communicate with the electronic device 104 or the server 108 through (eg, a remote wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, a sensor module ( 176), interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ). In some embodiments, at least one of the components (for example, the display device 160 or the camera module 180) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, the program 140) to execute at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least a part of data processing or operation, the processor 120 may receive instructions or data received from other components (eg, the sensor module 176 or the communication module 190) in the volatile memory 132. Loaded into, process instructions or data stored in volatile memory 132, and store result data in non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor), and an auxiliary processor 123 (eg, a graphics processing unit, an image signal processor) that can be operated independently or together. , Sensor hub processor, or communication processor). Additionally or alternatively, the coprocessor 123 may be set to use lower power than the main processor 121, or to be specialized for a designated function. The coprocessor 123 may be implemented separately from the main processor 121 or as part of it.

The coprocessor 123 may replace, for example, the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 may be active (eg, execute an application) ) With the main processor 121 while in the state, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It can control at least some of the functions or states associated with. According to an embodiment, the coprocessor 123 (eg, an image signal processor or communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176). The data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134.

The program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.

The input device 150 may receive commands or data to be used for components (eg, the processor 120) of the electronic device 101 from outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, mouse, or keyboard.

The audio output device 155 may output an audio signal to the outside of the electronic device 101. The audio output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker, or as part thereof.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment of the present disclosure, the display device 160 may include a touch circuitry configured to sense a touch, or a sensor circuit (eg, a pressure sensor) configured to measure the strength of the force generated by the touch. have.

The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment of the present disclosure, the audio module 170 acquires sound through the input device 150 or directly or wirelessly connects to the sound output device 155 or the electronic device 101 (for example, an external electronic device) Sound may be output through the electronic device 102 (eg, speakers or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state can do. According to an embodiment, the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a bio sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that can be used for the electronic device 101 to be directly or wirelessly connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the interface 177 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 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the connection terminal 178 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 179 may convert electrical signals into mechanical stimuli (eg, vibration or movement) or electrical stimuli that the user can perceive through tactile or motor sensations. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and videos. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101. According to an embodiment, the power management module 188 may be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101. According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishing and performing communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor), and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : Local area network (LAN) communication module, or power line communication module. Corresponding communication module among these communication modules includes a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with external electronic devices through a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into a single component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses a subscriber information (eg, an international mobile subscriber identifier (IMSI)) stored in the subscriber identification module 196 in a communication network such as the first network 198 or the second network 199. The electronic device 101 can be identified and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive it from the outside. According to an embodiment, the antenna module 197 may include one or more antennas, from which at least one suitable for a communication scheme used in a communication network, such as the first network 198 or the second network 199 The antenna of, for example, may be selected by the communication module 190. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna.

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

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the electronic devices 102 and 104 may be the same or a different type of device from the electronic device 101. According to an embodiment, all or some of the operations performed on the electronic device 101 may be performed on one or more external devices of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead executes the function or service itself. In addition or in addition, one or more external electronic devices may be requested to perform at least a portion of the function or the service. The one or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and deliver the result of the execution to the electronic device 101. The electronic device 101 may process the result, as it is or additionally, and provide it as at least part of a response to the request. To this end, for example, cloud computing, distributed computing, or client-server computing technology can be used.

In this document, the frequency band (frequency band) may refer to a band defined in 3GPP, as disclosed in [Table 1] or [Table 2] below. The band disclosed in [Table 1] may be a band used in 3G or 4G, and the band disclosed in [Table 2] may be a band used in 5G. The frequency bands and bands may be interchanged in this document. The bandwidth may mean a frequency range of an uplink or downlink of a frequency band. In the case of frequency division duplex (FDD), the frequency range of the uplink and the downlink are different from each other, but in the case of the time division duplex (TDD), the frequency range of the uplink and the frequency range of the downlink may be the same. .

Band No.	Uplink Frequency Range	Downlink Frequency Range	FDD / TDD
One	1920-1980	2110-2170	FDD
2	1850-1910	1930-1990	FDD
3	1710-1785	1805 -1880	FDD
4	1710-1755	2110-2155	FDD
5	824-849	869-894	FDD
7	2500-2570	2620-2690	FDD
8	880-915	925-960	FDD
9	1749.9-1784.9	1844.9-1879.9	FDD
10	1710-1770	2110-2170	FDD
11	1427.9-1452.9	1475.9-1500.9	FDD
12	698-716	728-746	FDD
13	777-787	746-756	FDD
14	788-798	758-768	FDD
17	704-716	734-746	FDD
18	815-830	860-875	FDD
19	830-845	875-890	FDD
20	832-862	791-821	FDD
21	1447.9-1462.9	1495.5-1510.9	FDD
22	3410-3490	3510-3590	FDD
23	2000-2020	2180-2200	FDD
24	1626.5-1660.5	1525-1559	FDD
25	1850-1915	1930-1995	FDD
26	814-849	859-894	FDD
27	807-824	852-869	FDD
28	703-748	758-803	FDD
29	N / A	717-728	SDL
30	2305-2315	2350-2360	FDD
31	452.5-457.5	462.5-467.5	FDD
32	N / A	1452-1496	SDL
33	1900-1920	1900-1920	TDD
34	2010-2025	2010-2025	TDD
37	1910-1930	1910-1930	TDD
38	2570-2620	2570-2620	TDD
39	1880-1920	1880-1920	TDD
40	2300-2400	2300-2400	TDD
41	2496-2690	2496-2690	TDD
42	3400-3600	3400-3600	TDD
43	3600-3800	3600-3800	TDD
44	703-803	703-803	TDD
45	1447-1467	1447-1467	TDD
46	5150-53505470-5925	5150-53505470-5925	TDD
47	5855-5925	5855-5925	TDD
48	3550-3700	3550-3700	TDD

Band No.	Uplink Frequency Range	Downlink Frequency Range	FDD / TDD
N1	1920-1980	2110-2170	FDD
N2	1850-1910	1930-1990	FDD
N3	1710-1785	1805-1880	FDD
N5	824-849	869-894	FDD
N7	2500-2570	2620-2690	FDD
N8	880-915	925-960	FDD
N13	777-787	746-756	FDD
N20	832-862	791-821	FDD
N25	1850-1915	1930-1995	FDD
N26	814-849	859-894	FDD
N28	703-748	758-803	FDD
N34	2010-2025	2010-2025	TDD
N38	2570-2620	2570-2620	TDD
N39	1880-1920	1880-1920	TDD
N40	2300-2400	2300-2400	TDD
N41	2496-2690	2496-2690	TDD
N50	1432-1517	1432-1517	TDD
N51	1427-1432	1427-1432	TDD
N66	1710-1780	2110-2200	FDD
N70	1695-1710	1995-2020	FDD
N71	663-698	617-652	FDD
N74	1427-1470	1475-1517	FDD
N75	N / A	1432-1517	SDL
N76	N / A	1427-1432	SDL
N77	3300-4200	3300-4200	TDD
N78	3300-3800	3300-3800	TDD
N79	4400-5000	4400-5000	TDD
N80	1710-1785	N / A	SUL
N81	880-915	N / A	SUL
N82	832-862	N / A	SUL
N83	703-748	N / A	SUL
N84	1920-1980	N / A	SUL
N257	26500-29500	26500-29500	TDD
N258	24250-27500	24250-27500	TDD
N260	37000-40000	37000-40000	TDD

2 is a block diagram of an electronic device, according to an embodiment.

Referring to FIG. 2, the electronic device 200 (eg, the electronic device 101 of FIG. 1) includes a first antenna 210 (eg, an antenna module 197 of FIG. 1), a second antenna 220 ( Example: antenna module 197 of FIG. 1, first communication circuit 230 (eg, communication module 190 of FIG. 1), second communication circuit 240 (eg, communication module 190 of FIG. 1) ), The first amplifier 242 and the processor 260 (eg, the processor 120 of FIG. 1). According to various embodiments, the electronic device 200 may omit some of the components illustrated in FIG. 2 or additionally include components not illustrated in FIG. 2. For example, the electronic device 200 may further include a memory (eg, the memory 130 of FIG. 1).

2 illustrates an embodiment in which the first communication circuit 230 supports FDD and the second communication circuit 240 supports TDD, the first communication circuit 230 and the second communication circuit 240 The included components are not limited to the example shown in FIG. 2. For example, according to another embodiment, both the first communication circuit 230 and the second communication circuit 240 may support TDD, or both may support FDD.

The first antenna 210 may transmit a signal in the first frequency band to another device (eg, a base station). For another example, the first antenna 210 may receive a signal in a first frequency band from another device through a TDD scheme or a signal in a band different from the first frequency band through a FDD scheme (eg, a second frequency). Signal of the band).

According to one embodiment, the first antenna 210 may include a radiator capable of having a plurality of electrical paths. For example, the first antenna 210 may transmit signals of different frequency bands (eg, signals in the first frequency band or signals in the second frequency band) through the plurality of electrical paths.

The second antenna 220 may receive a signal in the second frequency band from another device (eg, a base station). For another example, the second antenna 220 may transmit a signal in a second frequency band to another device through a TDD scheme or a signal in a band different from the second frequency band through the FDD scheme to the other apparatus. You may.

According to an embodiment, the second antenna 220 may be the same or similar to the first antenna 210. The second antenna 220 may include one or more radiators independent of the radiators of the first antenna 210. According to an embodiment, the second antenna 220 may receive a signal in the second frequency band in the same or similar manner to the first antenna 210.

According to an embodiment, the first antenna 210 and the second antenna 220 may transmit or receive RF signals of different bands to support CA. For example, the first antenna 210 may transmit (or receive) a signal corresponding to Band 1 of [Table 1], and the second antenna 220 may receive (or transmit) a signal corresponding to Band 3 )can do.

According to an embodiment, the first antenna 210 and the second antenna 220 may be antennas for communicating using different communication methods. For example, the first antenna 210 may be an antenna for 4G communication, and the second antenna 220 may be an antenna for 5G communication. For example, the first antenna 210 may transmit a signal corresponding to Band 3, and the second antenna 220 may receive a signal corresponding to N78.

The first communication circuit 230 may process a signal in a first frequency band transmitted from the first antenna 210 or received from the first antenna 210. For example, the first communication circuit 230 may amplify or filter the transmission power of the signal in the first frequency band by using the transmission circuit module 234. The first communication circuit 230 may transmit the processed signal of the first frequency band to the first antenna 210 and the signal of the first frequency band may be transmitted to another electronic device through the first antenna 210. You can. For another example, the first communication circuit 230 receives a signal in the first frequency band received through the first antenna 210 and uses the transmission circuit module 234 to receive the signal in the first frequency band. It can be amplified or filtered. The first communication circuit 230 may transmit the processed signal of the first frequency band to at least one processor 260.

The transmission circuit module 234 may include a circuit (eg, at least one of the second amplifier 244 or a filter) configured to process a signal to be transmitted, or at least one of a duplexer. According to an embodiment, the transmission circuit module 234 may be referred to as power amplifier modules including duplexers (PAMID). The amplifier can amplify the transmitted signal. The duplexer can separate or filter the signal into a specified frequency band. According to another embodiment, the transmission circuit module 234 may further include a circuit (for example, at least one of the first amplifiers 232 and 242 or a filter) configured to process the received signal. In this case, the processor 260, the transmission circuit module 234, and the first antenna 210 may be electrically connected through the reception path as well as the transmission path.

According to an embodiment, when the first antenna 210 receives a signal of a second frequency band different from a signal of the first frequency band, the first communication circuit 230 may further include a first amplifier 232. have. According to an embodiment, the first amplifier 232 is electrically connected to the first antenna 210 and may amplify a signal in a second frequency band received from the first antenna 210. The first amplifier 232 may include at least one low-noise amplifier (LNA). When the first antenna 210 does not receive the signal in the second frequency band, the first communication circuit 230 may omit the first amplifier 232.

When the first antenna 210 transmits a signal in the first frequency band using the transmission circuit module 234 and receives a signal in the second frequency band using the first amplifier 232, the first communication circuit ( 230 may further include a diplexer (236). The diplexer 236 may be disposed between the first antenna 210 and the transmission circuit module 234 and the first amplifier 232. The diplexer 236 may filter a signal in a low frequency band or a signal in a high frequency band. When the first antenna 210 does not include the first amplifier 232, the first communication circuit 230 may omit the diplexer 236.

The second communication circuit 240 may be electrically connected to the first amplifier 242 and the second antenna 220. According to an embodiment, the second communication circuit 240 may perform the same or similar operation as the first communication circuit 230. For example, the second communication circuit 240 amplifies the transmission power of the signal in the second frequency band by using the second amplifier 244 and sends the processed signal in the second frequency band to the second antenna 220. Can deliver. For another example, the second communication circuit 240 receives the signal in the second frequency band received from the second antenna 220, and amplifies the signal in the second frequency band using the first amplifier 242. I can do it. The second communication circuit 240 may transmit the processed signal of the second frequency band to at least one processor 260.

The first amplifier 242 may amplify the signal of the second frequency band received from the second antenna 220 before transmitting it to the processor 260. In one embodiment, the first amplifier 242 may include at least one LNA. First amplifier (242)

When the second antenna 220 transmits a signal in the second frequency band, the second communication circuit 240 may further include a second amplifier 244. According to one embodiment, the second amplifier 244 may amplify the transmitted signal. The second amplifier 244 may include, for example, at least one power amplifier module (PAM).

According to an embodiment, the first amplifier 242 may have a plurality of operation modes. For example, the first amplifier 242 may have a plurality of amplification levels, and may have a plurality of operation modes for operating at each amplification level. According to an embodiment, the amplification level of the first amplifier 242 may be adjusted by the processor 260. For example, the processor 260 may increase the amplification level of the first amplifier 242 when the reception sensitivity of the signal in the second frequency band received from the second antenna 220 is lower than a specified level. For another example, the processor 260 may lower the amplification level of the first amplifier 242 when the reception sensitivity of the signal in the second frequency band received from the second antenna 220 is higher than a specified level.

According to an embodiment, the processor 260 may control the maximum amplification level of the first amplifier 242. For example, when the specified condition is satisfied, the processor 260 may set the maximum amplification level of the first amplifier 242 as the first gain. In this case, it may be limited that the amplification level of the first amplifier 242 is adjusted higher than the first gain. For example, the processor 260 may adjust the amplification level of the first amplifier 242 to only the first gain or a gain lower than the first gain. For another example, if the specified condition is satisfied, the processor 260 may set the maximum amplification level of the first amplifier 242 to a second gain lower than the first gain. In this case, it may be limited that the amplification level of the first amplifier 242 is adjusted higher than the second gain. For example, adjusting the amplification level of the first amplifier 242 to the first gain may be limited.

According to an embodiment, at least a part of the transmission signal of the first frequency band transmitted from the first communication circuit 230 to the first antenna 210 through the transmission circuit module 234 is the second communication circuit 240 or It may be transmitted to the first amplifier 242. For example, the first communication circuit 230 (or the transmission circuit module 234) is physically separated from the second communication circuit 240 or the first amplifier 242, but a coupling effect may occur between them. have. In this case, at least a portion of the transmission signal in the first frequency band may be transmitted from the first communication circuit 230 to the second communication circuit 240 or the first amplifier 242.

According to an embodiment, at least a part of the transmitted signal in the transmitted first frequency band may affect the received signal in the second frequency band processed by the second communication circuit 240 or the first amplifier 242. . For example, when the second frequency band includes at least part of the multiplication frequency of the first frequency band, the frequency of the harmonic component of the transmission signal overlaps at least partly with the frequency of the received signal, and the harmonic component By this, a dissense may occur in the received signal.

In the present specification, the sense may be understood to mean a decrease in sensitivity caused by a signal transmitted from the electronic device 200 with respect to a signal received from the electronic device 200. The electronic device 200 according to various embodiments disclosed in the present disclosure may reduce the degree of the sense by controlling the first amplifier 242 or the first communication circuit 230.

According to an embodiment of the present disclosure, the harmonic component of the transmission signal generated from the first communication circuit 230 (or the transmission circuit module 234) is transmitted to the second communication circuit 240 or the first amplifier 242. It can be delivered. According to another embodiment, the desense is caused by the transmission signal generated from the first communication circuit 230 is transmitted to the second communication circuit 240 or the first amplifier 242, and is generated by the harmonic component of the transmitted signal. It may.

The processor 260 may be electrically connected to the first communication circuit 230 and the second communication circuit 240. According to an embodiment, the processor 260 may include at least one of an application processor (AP), a communication processor (CP), a band processor (BP), or a transceiver.

According to an embodiment of the present disclosure, the processor 260 performs operations such as components included in the electronic device 200, for example, the first communication circuit 230, the second communication circuit 240, or the first amplifier 242. Can be controlled. For example, the processor 260 may adjust the amplification level (eg, gain) of the first amplifier 242 when the electronic device 200 satisfies a specified condition, either directly or by using the second communication circuit 240. The maximum amplification level can be set. For another example, the processor 260 may control the first communication circuit 230 to adjust the transmission power for the signal in the first frequency band.

According to an embodiment, the second communication circuit 240 may further include a filter 248 to filter signals of a designated frequency band. The filter 248 may be disposed between the second antenna 220 and the first amplifier 242 (or the second amplifier 244). According to an embodiment, the filter 248 may include at least one band pass filter (BPF).

 When the second antenna 220 transmits and receives signals in the second frequency band using TDD, the second communication circuit 240 includes a filter 248 and a first amplifier 242 (or a second amplifier 244) )) May further include a switch 246. For example, the second communication circuit 240 (or the processor 260) first switches 246 to the first amplifier 242 when the second antenna 220 receives or transmits signals in the second frequency band. Alternatively, the second amplifier 244 may be connected.

According to an embodiment, the electronic device 200 may further include a memory, unlike that shown in FIG. 2. According to an embodiment of the present disclosure, information on a first frequency band and a second frequency band where there is a possibility that a sense is generated in the received signal may be stored in the memory. For example, information on the first frequency band and the second frequency band having a multiplication frequency relationship among the bands disclosed in [Table 1] or [Table 2] may be stored in the memory. Through this, the processor 260 may determine whether or not there is a fear of dissense in the signal currently received from the second antenna 220 based on the information stored in the memory.

3A illustrates reception sensitivity according to a frequency band of a transmission signal and a frequency band of a reception signal in an electronic device, according to an embodiment.

Referring to the table 310 of FIG. 3A, when the first frequency band is Band 3 and the second frequency band is Band 42, the reception sensitivity according to the amplification level of the amplifier (for example, the first amplifier 242 of FIG. 2) The simulation result is measured. In various embodiments, it can be understood that the greater the measured value disclosed, the higher the sensitivity of the received signal. In various embodiments, the amplification level of the amplifier may be set to either a first gain, a second gain, or a third gain. In this document, it can be understood that the first gain is a higher gain than the second gain, and the second gain is a higher gain than the third gain.

According to various embodiments, the first frequency band may be 1720 MHz in Band 3, and the second frequency band may be 3440 MHz, 3495 MHz, or 3550 MHz in Band 42. In various embodiments, if the second frequency band is 3495 MHz or 3550 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may not be formed. In this case, it can be seen that the reception sensitivity of the received signal increases as the gain of the amplifier increases.

In an embodiment, if the second frequency band is 3440 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may be formed. In this case, it can be confirmed that the reception sensitivity of the received signal is lowered compared to the case where the multiplication frequency relationship is not formed. In other words, it can be confirmed that a sense occurs in the received signal. It can be understood that the sensitivity of the received signal is lowered because the frequency of the harmonic component of the transmitted signal and the frequency of the received signal coincide. In this case, it can be confirmed that the reception sensitivity is relatively good in the case of the second gain compared to the case where the amplification level of the amplifier is the first gain.

According to various embodiments, the first frequency band may be 1747.5 MHz in Band 3, and the second frequency band may be 3440 MHz, 3495 MHz, or 3550 MHz in Band 42. In various embodiments, when the second frequency band is 3440 MHz or 3550 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may not be formed. In this case, it can be seen that the reception sensitivity of the received signal increases as the gain of the amplifier increases.

In an embodiment, if the second frequency band is 3495 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may be formed. In this case, it can be confirmed that the reception sensitivity of the received signal is lowered compared to the case where the multiplication frequency relationship is not formed. In other words, it can be confirmed that a sense occurs in the received signal. It can be understood that the sensitivity of the received signal is lowered because the frequency of the harmonic component of the transmitted signal and the frequency of the received signal coincide. In this case, it can be confirmed that the reception sensitivity is relatively good in the case of the second gain compared to the case where the amplification level of the amplifier is the first gain.

According to various embodiments, the first frequency band may be 1775 MHz in Band 3, and the second frequency band may be 3440 MHz, 3495 MHz, or 3550 MHz in Band 42. In various embodiments, when the second frequency band is 3440 MHz or 3495 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may not be formed. In this case, it can be seen that the reception sensitivity of the received signal increases as the gain of the amplifier increases.

In an embodiment, if the second frequency band is 3550 MHz, a multiplication frequency relationship between the first frequency band and the second frequency band may be formed. In this case, it can be confirmed that the reception sensitivity of the received signal is lowered compared to the case where the multiplication frequency relationship is not formed. In other words, it can be confirmed that a sense occurs in the received signal. It can be understood that the sensitivity of the received signal is lowered because the frequency of the harmonic component of the transmitted signal and the frequency of the received signal coincide. In this case, it can be confirmed that the reception sensitivity is relatively good in the case of the second gain compared to the case where the amplification level of the amplifier is the first gain.

Through the simulation results, it can be seen that when the frequency of the received signal corresponds to the multiplication frequency of the frequency of the transmitted signal, it is advantageous that the gain of the amplifier is set as the second gain compared to the first gain.

3B illustrates a degree of sensitivity deterioration of a received signal due to a transmitted signal in an electronic device, according to an embodiment.

Referring to the table 320 of FIG. 3B, when the first frequency band is Band 3 and the second frequency band is Band 42, the sense of the amplifier (eg, the first amplifier 242 in FIG. 2) according to the amplification level The simulation result is measured.

According to an embodiment, as disclosed in the table 310 of FIG. 3A, when a multiplication frequency relationship between the first frequency band and the second frequency band is formed, a sense may occur in the received signal. According to an embodiment, when the first frequency band is 1720MHz and the second frequency band is 3440MHz, a sense may occur in the received signal, and the sense is minimum to 12.4dbM when the amplification level of the amplifier is the second gain. You can confirm that. According to another embodiment, when the first frequency band is 1747.5 MHz and the second frequency band is 3495 MHz, a sense may occur in the received signal, and the sense is minimum to 13.7 dbM when the amplifier amplification level is the second gain. It can be confirmed that According to another embodiment, when the first frequency band is 1775 MHz and the second frequency band is 3550 MHz, a sense may occur in the received signal, and the sense is minimum to 13.6 dbM when the amplifier amplification level is the second gain. It can be confirmed that

3C illustrates the gain of an amplifier according to a component of a transmission signal in an electronic device, according to an embodiment.

Referring to the table 330 of FIG. 3C, the gain of each component of the transmission signal according to the amplification level of the amplifier (eg, the first amplifier 242 in FIG. 2) is disclosed. According to an embodiment, since the amplifier is configured to amplify signals in the second frequency band, it may have linear characteristics for signals in the second frequency band, but may have non-linear characteristics for signals in other frequency bands. have.

According to an embodiment, when the second frequency band (eg, Band 42) corresponds to the multiplication frequency of the first frequency band (eg, Band3), the frequency of the harmonic component of the first frequency band is the same or similar to the second frequency band. can do. Therefore, it can be seen that the gain for the harmonic component increases linearly as the amplification level increases, as shown in Table 330 of FIG. 3C. For example, the gain of the harmonic component is 19 when the amplification level is the first gain, the gain of the harmonic component is 16.2 when the amplification level is the second gain, and the harmonic component of the harmonic component when the amplification level is the third gain. It can be seen that the gain is 10.6.

According to an embodiment, the frequency of the basic component of the first frequency band may be different from the second frequency band. Accordingly, it can be seen that the gain for the basic component has a nonlinear characteristic independent of the increase in the amplification level as disclosed in Table 330 of FIG. 3C. For example, when the amplification level is the first gain, the gain of the basic component is 0.3, when the amplification level is the second gain, the gain of the basic component is -2.5, and when the amplification level is the third gain, the basic component It can be seen that the gain of is 7.5.

According to an embodiment, the sense generated in the received signal may be generated by both the harmonic component and the basic component of the transmission signal generated by the first communication circuit (eg, the first communication circuit 230 of FIG. 2). For example, the sense may be caused by the harmonic component of the transmission signal generated in the first communication circuit being transmitted to the amplifier. For another example, the dissense may be generated by a harmonic component of the basic component amplified by an amplifier, in which the basic component of the transmission signal generated in the first communication circuit is transmitted to the amplifier.

3C, the harmonic component has a linear characteristic according to the amplification level, but the basic component may have a nonlinear characteristic according to the amplification level. Accordingly, the sense generated in the received signal may have the same or similar non-linear characteristics as disclosed in the table 320 of FIG. 3B. For example, the size of the sense may be minimum when the amplifier amplification level is the second gain rather than the first gain.

4 is a flowchart illustrating a method for reducing a decrease in sensitivity of a received signal due to a transmitted signal in an electronic device, according to an embodiment.

Referring to FIG. 4, a method for reducing the sensitivity of the received signal by the transmission signal, for example, reducing the sense, may include operations 401 to 405. According to an embodiment, the operations 401 to 405 may be understood to be performed by the electronic device 200 (or the processor 260) illustrated in FIG. 2.

In operation 401, the electronic device may transmit a signal in the first frequency band and receive a signal in the second frequency band. For example, the electronic device may use a first communication circuit (eg, the first communication circuit 230 of FIG. 2) and a first frequency band through a first antenna (eg, the first antenna 210 of FIG. 2). And a second frequency band through a second antenna (eg, the second antenna 220 of FIG. 2) using a second communication circuit (eg, the second communication circuit 240 of FIG. 2). Can receive the signal. According to an embodiment, the operation of transmitting the signal in the first frequency band and the operation of receiving the signal in the second frequency band may be performed simultaneously. In other words, the electronic device may be configured to perform CA on the signal in the first frequency band and the signal in the second frequency band.

According to an embodiment, the maximum amplification level of the amplifier (eg, the first amplifier 242 of FIG. 2) may be basically set to the first gain. The first gain may be, for example, the highest gain among the possible amplification levels of the amplifier. In other words, the electronic device can be set to adjust the amplification level up to the maximum amplification level of the amplifier without any limitation. In this case, the electronic device may adjust the amplification level of the amplifier according to the reception sensitivity of the signal in the second frequency band without any limitation. For example, the electronic device may increase the amplification level to the maximum amplification level when the reception sensitivity is lower than the specified level, and lower the amplification level to the lowest amplification level when the reception sensitivity is higher than the specified level.

In operation 403, the electronic device may determine whether the second frequency band includes at least a part of the multiplication frequency of the first frequency band. When the second frequency band includes at least a part of the multiplication frequency of the first frequency band, the electronic device may perform operation 405. If the second frequency band does not include at least part of the multiplication frequency of the first frequency band, the electronic device may repeat operation 403.

For example, the electronic device may transmit a signal in a frequency band corresponding to Band 3 through the first antenna, and receive a signal in a frequency band corresponding to Band 42 (or N78) through the second antenna. Referring to [Table 1], the transmission frequency band of Band 3 is 1710 [MHz]-1785 [MHz], and the reception frequency band of Band 42 is 3400 [MHz]-3600 [MHz]. The frequency band may include at least a portion of the transmission frequency band of Band 3. In this case, the electronic device may perform operation 405.

For another example, the electronic device may transmit a signal in the frequency band corresponding to Band 3 through the first antenna, and receive a signal in the frequency band corresponding to Band 40 through the second antenna. Referring to [Table 1], the transmission frequency band of Band 3 is 1710 [MHz]-1785 [MHz], and the reception frequency band of Band 40 is 2300 [MHz]-2400 [MHz]. The frequency band may not include at least some of the transmission frequency band of Band 3. In this case, the electronic device may repeatedly perform operation 403 without performing operation 405. In this case, the maximum amplification level of the amplifier can be maintained at the first gain.

According to an embodiment of the present disclosure, the electronic device may determine whether to include the above based on information stored in the memory. For example, information on a first frequency band and a second frequency band corresponding to the inclusion relationship may be stored in the memory, and the electronic device may determine whether to include the information based on the information. According to an embodiment, the information may include a look-up table for the first frequency band and the second frequency band. In one embodiment, the electronic device may determine whether to include the channel information currently used or assigned channel information by comparing it with the look-up table. In this case, the electronic device may skip operation 401 and perform operation 403.

In operation 405, the electronic device may change the maximum amplification level of the amplifier to a second gain. The second gain is lower than the first gain and can be understood as the second gain disclosed in FIG. 3.

In an embodiment, when the second frequency band includes at least a part of the multiplication frequency of the first frequency band in operation 403, the electronic device may determine that the received signal has sensed and change the maximum amplification level to the second gain. . When the maximum amplification level is changed to the second gain, as shown in FIG. 3, the sense of the received signal may be reduced.

Through the operations 401 to 405, the electronic device may reduce the sense of dissipation that may occur in the received signal by the harmonic component of the transmitted signal.

5 illustrates a reception sensitivity of a reception signal according to transmission power of a transmission signal in an electronic device, according to an embodiment.

Referring to FIG. 5, a first graph 510 and a table 520 are disclosed. According to an embodiment, the first graph 510 and the table 520 may be understood as representing a change in the reception sensitivity of the received signal according to the transmission power of the transmission signal. 5, the first frequency band is 1747.5 MHz of Band 3, the second frequency band is 3495 MHz of Band 42, and the amplification level of the amplifier (for example, the first amplifier 242 in FIG. 2) is the first. It may be the result measured under the condition of gain.

Referring to the first graph 510 and the table 520, it can be seen that the tendency that the reception sensitivity of the received signal increases as the transmit power of the transmitted signal decreases. For example, as the transmit power decreases, the influence of the received signal on the received signal may decrease. In other words, the desense of the received signal by the transmitted signal can be reduced, and the reception sensitivity of the received signal can be increased.

According to an embodiment, when the transmission power is smaller than a specified level, reception sensitivity may be higher than when a maximum amplification level of the amplifier is limited. For example, referring to the table 310 of FIG. 3, when the first frequency band is 1747.5 MHz of Band 3 and the second frequency band is 3495 MHz of Band 42, the amplification level of the amplifier is the second gain from the first gain. If you change to, you can see that the reception sensitivity is 81.8dBm. In addition, referring to the table 520 of FIG. 5, it can be seen that when the transmission power becomes 19 [] or less, the reception sensitivity of the received signal is 84 dBm or more. In other words, if the transmission power is lower than a specified level, the electronic device may have a sufficiently high reception sensitivity without limiting the maximum amplification level of the amplifier. Therefore, when the transmission power is lower than a specified level, for example, when the electric field strength of the environment around the electronic device is higher than the specified level, the maximum amplification level of the amplifier may not be limited.

6 is a flowchart illustrating a method for reducing a decrease in sensitivity of a received signal due to a transmitted signal in an electronic device according to another embodiment.

Referring to FIG. 6, a method for reducing the sensitivity of the received signal by the transmission signal, for example, reducing the sense, may include operations 601 to 607. According to an embodiment, the operations 601 to 607 may be understood to be performed by the electronic device 200 (or processor 260) illustrated in FIG. 2. According to an embodiment, at least some of the operations 601 to 607 may be the same or similar to at least some of the operations 401 to 405 illustrated in FIG. 4. Therefore, in the description of FIG. 6, content overlapping with the description of FIG. 4 may be omitted.

In operation 601, the electronic device may transmit a signal in the first frequency band and receive a signal in the second frequency band. According to an embodiment, the operation of transmitting the signal in the first frequency band and the operation of receiving the signal in the second frequency band may be performed simultaneously. Operation 601 may be the same or similar to operation 401 of FIG. 4, for example.

According to an embodiment, the maximum amplification level of the amplifier (eg, the first amplifier 242 of FIG. 2) may be basically a first gain. The first gain may be, for example, the highest gain among the possible amplification levels of the amplifier.

In operation 603, the electronic device may determine whether the second frequency band includes at least a part of the multiplication frequency of the first frequency band. When the second frequency band includes at least part of the multiplication frequency of the first frequency band, the electronic device may perform operation 605. If the second frequency band does not include at least part of the multiplication frequency of the first frequency band, the electronic device may repeat operation 603.

According to an embodiment of the present disclosure, the electronic device may determine whether to include the above based on information stored in the memory. For example, information on a first frequency band and a second frequency band corresponding to the inclusion relationship may be stored in the memory, and the electronic device may determine whether to include the information based on the information. Operation 603 may be the same or similar to operation 403 of FIG. 4, for example. In this case, the electronic device may perform operation 603 without performing operation 601.

In operation 605, the electronic device may determine whether the transmission power of the transmission signal is higher than a specified level. The specified level may be, for example, a size of transmit power that may increase reception sensitivity than when limiting the maximum amplification level. In one embodiment, if the transmission power is higher than the specified level, the electronic device may perform operation 607. In one embodiment, if the transmission power is lower than the specified level, the electronic device does not need to limit the maximum amplification level, and thus operation 603 may be performed again.

According to an embodiment, the designated level of the transmission power may be stored in a memory. The electronic device may perform the operation 605 based on the information related to the specified level stored in the memory.

In operation 607, the electronic device may change the maximum amplification level of the amplifier to a second gain. The second gain is lower than the first gain and can be understood as the second gain disclosed in FIG. 3.

In one embodiment, the electronic device may determine that the sense of the received signal is greater than or equal to the specified level and change the maximum amplification level to the second gain. When the maximum amplification level is changed to the second gain, as shown in FIG. 3, the sense of the received signal may be reduced. Operation 607 may be the same or similar to operation 405 of FIG. 4, for example.

Through the operations 601 to 607, the electronic device may reduce the sense of dissipation that may occur in the received signal by the harmonic component of the transmitted signal.

As described above, the electronic device (eg, 101 in FIG. 1) includes a first antenna (eg, 210 in FIG. 2) for transmitting a signal in the first frequency band, and a second antenna for receiving signals in the second frequency band. 2 antennas (eg, 220 in FIG. 2), a first communication circuit electrically connected to the first antenna (eg, 230 in FIG. 2), and a second communication circuit electrically connected to the second antenna (eg, FIG. 2) 240), the second communication circuit, the maximum amplification level is set to the first gain, and includes an amplifier (for example, 242 in FIG. 2) set to amplify the signal in the second frequency band, the first A communication circuit and at least one processor (eg, 260 in FIG. 2) electrically connected to the second communication circuit, wherein the at least one processor uses the first antenna to transmit signals in the first frequency band. Control the first communication circuit to transmit, and use the second antenna Controlling the second communication circuit to receive the signal in the second frequency band, and based at least on a determination that the second frequency band includes at least a part of the multiplied frequency of the first frequency band, the maximum amplification level of the amplifier It may be set to control the second communication circuit so that it is changed to a second gain smaller than the first gain.

According to an embodiment, the at least one processor may use the second communication circuit so that the maximum amplification level is maintained at the first gain, based at least on a determination that the multiplication frequency of the first frequency band is not included. Can be set to control.

According to an embodiment of the present disclosure, the electronic device may store a memory in which information about the first frequency band and the second frequency band in which the second frequency band includes at least a part of the multiplication frequency of the first frequency band (eg: 130 of FIG. 1, and the at least one processor may be configured to determine whether the second frequency band includes at least a part of the multiplication frequency of the first frequency band based on the stored information.

According to an embodiment, the at least one processor may be configured to adjust the transmission power of the signal in the first frequency band by using the first communication circuit.

According to an embodiment of the present disclosure, if the second frequency band includes at least a part of the multiplication frequency of the first frequency band and the transmission power of the signal in the first frequency band is higher than a specified threshold, , It may be set to control the second communication circuit so that the maximum amplification level is changed from the first gain to the second gain.

According to an embodiment, when the transmission power of the signal in the first frequency band is lower than a specified threshold, the maximum amplification level of the amplifier is changed from the changed second gain to the first gain It can be set to control the second communication circuit as much as possible.

According to an embodiment, the at least one processor controls the first communication circuit and the second communication circuit to perform carrier aggregation (CA) on signals in the first frequency band and signals in the second frequency band. Can be set.

According to an embodiment, the electronic device may further include at least one filter for acquiring a signal in the second frequency band among signals received from the second antenna and transmitting the signal in the second frequency band to the amplifier.

As described above, the electronic device (eg, 101 in FIG. 1) includes a first communication circuit (eg, 230 in FIG. 2), a first communication circuit including a transmission amplification circuit configured to amplify a transmission signal in a first frequency band. A second communication circuit (eg, 240 in FIG. 2) including a receive amplification circuit (eg, 242 in FIG. 2) set to amplify a received signal in a second frequency band with a maximum amplification level of, and the first communication circuit And at least one processor (eg, 260 in FIG. 2) electrically connected to the second communication circuit, wherein the at least one processor has at least a multiplication frequency of the first frequency band in the second frequency band. If included, the maximum amplification level of the receive amplification circuit is changed to a second gain less than the first gain, and if the second frequency band does not include the multiplication frequency of the first frequency band, the maximum amplification of the receive amplification circuit The level may be set to maintain the first gain and amplify the received signal through the receive amplifying circuit.

According to an embodiment of the present disclosure, the electronic device further includes a memory in which information about the first frequency band and the second frequency band in which the second frequency band includes at least a multiplication frequency of the first frequency band is stored. In addition, the at least one processor may be set to determine whether the second frequency band includes at least a multiplication frequency of the first frequency band based on the stored information.

According to an embodiment, the at least one processor controls the first communication circuit and the second communication circuit to perform carrier aggregation (CA) on signals in the first frequency band and signals in the second frequency band. Can be set.

According to an embodiment, the at least one processor may maximize the maximum amplification of the reception amplification circuit when the second frequency band includes at least a multiplication frequency of the first frequency band and the transmission power of the transmission amplification circuit is lower than a specified level. The level can be changed to a second gain that is less than the first gain.

According to an embodiment, the at least one processor may be set to change the maximum amplification level of the reception amplification circuit to the first gain when the transmission power of the transmission amplification circuit is lower than a specified level.

As described above, a method of reducing a decrease in reception sensitivity of a received signal due to a transmission signal includes: transmitting a signal in a first frequency band using a first antenna and a signal in a second frequency band using a second antenna Receiving an operation, and changing the maximum amplification level from a first gain to a second gain less than the first gain when the second frequency band includes at least a part of the multiplication frequency of the first frequency band. You can.

According to an embodiment, the method may further include maintaining the maximum amplification level as the first gain if at least a part of the multiplication frequency of the first frequency band is not included.

According to an embodiment, the method may further include an operation of adjusting the transmission power of the signal in the first frequency band.

According to an embodiment, the operation of changing the maximum amplification level from a first gain to a second gain less than the first gain may include the at least part of the multiplication frequency of the first frequency band by the second frequency band. And when the transmission power of the signal in the first frequency band is higher than a specified level, changing the maximum amplification level from the first gain to the second gain.

According to one embodiment, the method further includes changing the maximum amplification level from the changed second gain to the first gain when the transmission power of the signal in the first frequency band is lower than a specified level. can do.

According to an embodiment, the method may further include performing CA (carrier aggregation) for the signals in the first frequency band and the signals in the second frequency band.

According to an embodiment, the method may further include an operation of acquiring a signal of the second frequency band among signals received from the second antenna and transmitting the signal to the amplifier.

According to the embodiments disclosed in the present document, the electronic device may reduce a decrease in communication performance even when performing CAs that communicate using signals of different frequency bands simultaneously. For example, even if the frequency band of the received signal corresponds to the multiplication frequency of the frequency band of the transmitted signal, the reception sensitivity of the received signal by the harmonic part of the transmitted signal may be lower than or equal to a specified level.

An electronic device according to various embodiments disclosed in this document may be a device of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the exemplary embodiment of the present document is not limited to the aforementioned devices.

It should be understood that various embodiments of the document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and include various modifications, equivalents, or substitutes of the corresponding embodiments. In connection with the description of the drawings, similar reference numerals 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 items, unless the context clearly indicates otherwise. In this document, "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 , B, or C. Each of the phrases such as “may include all possible combinations of items listed together in the corresponding phrase among the phrases. Terms such as “first”, “second”, or “first” or “second” can be used to simply distinguish a component from other components, and to separate components from other aspects (eg, importance or Order). Any (eg, first) component is referred to as “coupled” or “connected” to another (eg, second) component, with or without the term “functionally” or “communically” When mentioned, it means that any of the above components can be connected directly to the other components (eg, by wire), wirelessly, or through a third component.

The term "module" as used herein may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, components, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof performing one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present disclosure may include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (e.g., program 140) that includes. For example, a processor (eg, processor 120) of a device (eg, electronic device 101) may call and execute at least one of one or more commands stored from a storage medium. This enables the device to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The storage medium readable by the 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 include a signal (eg, electromagnetic wave), and this term is used when data is semi-permanently stored in the storage medium. It does not distinguish between temporary storage cases.

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

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, modules or programs) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components the same or similar to that performed by the corresponding component among 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, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, omitted, or the like. , Or one or more other actions can be added.

Claims (15)

1. In the electronic device,

   A first antenna for transmitting a signal in a first frequency band;

   A second antenna for receiving a signal in a second frequency band;

   A first communication circuit electrically connected to the first antenna;

   A second communication circuit electrically connected to the second antenna, the second communication circuit includes an amplifier configured to amplify a signal in the second frequency band, wherein a maximum amplification level is set to a first gain;

   And at least one processor electrically connected to the first communication circuit and the second communication circuit, wherein the at least one processor comprises:

   Control the first communication circuit to transmit the signal in the first frequency band by using the first antenna,

   Control the second communication circuit to receive the signal in the second frequency band by using the second antenna,

   The second communication circuit such that the maximum amplification level of the amplifier is changed to a second gain less than the first gain, based on at least a determination that the second frequency band includes a multiplication frequency of the first frequency band. An electronic device set to control.
2. The method according to claim 1,

   And the at least one processor is configured to control the second communication circuit such that the maximum amplification level is maintained at the first gain, based at least on a determination that the multiplication frequency of the first frequency band is not included. .
3. The method according to claim 1,

   The second frequency band further includes a memory in which information about the first frequency band and the second frequency band including at least part of the multiplication frequency of the first frequency band is stored,

   And the at least one processor is configured to determine whether the second frequency band includes at least a part of a multiplication frequency of the first frequency band based on the stored information.
4. The method according to claim 1,

   And the at least one processor is configured to adjust the transmission power of the signal in the first frequency band by using the first communication circuit.
5. The method according to claim 4,

   The at least one processor may increase the maximum amplification level when the second frequency band includes at least a part of the multiplication frequency of the first frequency band and the transmission power of the signal in the first frequency band is higher than a specified threshold. And an electronic device configured to control the second communication circuit to change from the first gain to the second gain.
6. The method according to claim 4,

   The at least one processor is configured to cause the second communication circuit to change the maximum amplification level of the amplifier from the changed second gain to the first gain if the transmission power of the signal in the first frequency band is lower than a specified threshold. Electronic device, set to control.
7. The method according to claim 1,

   And the at least one processor is configured to control the first communication circuit and the second communication circuit to perform carrier aggregation (CA) on signals in the first frequency band and signals in the second frequency band.
8. The method according to claim 1,

   The electronic device further includes at least one filter for acquiring a signal in the second frequency band among signals received from the second antenna and transmitting the signal to the amplifier.
9. A method of reducing a decrease in the sensitivity of a received signal due to a transmitted signal,

   Transmitting a signal in a first frequency band using a first antenna;

   Receiving a signal in a second frequency band using a second antenna; And

   And if the second frequency band includes at least a part of the multiplication frequency of the first frequency band, changing the maximum amplification level from a first gain to a second gain less than the first gain.
10. The method according to claim 9,

    And maintaining the maximum amplification level as the first gain if at least a part of the multiplication frequency of the first frequency band is not included.
11. The method according to claim 9,

    And adjusting the transmission power of the signal in the first frequency band.
12. The method according to claim 11,

    The operation of changing the maximum amplification level from a first gain to a second gain less than the first gain;

    If the second frequency band includes at least part of the multiplication frequency of the first frequency band and the transmission power of the signal in the first frequency band is higher than a specified level, the maximum amplification level is the second gain to the second gain. Including the method; including, method.
13. The method according to claim 11,

    And changing the maximum amplification level from the changed second gain to the first gain when the transmission power of the signal in the first frequency band is lower than a specified level.
14. The method according to claim 9,

    And performing a carrier aggregation (CA) on the signals in the first frequency band and the signals in the second frequency band.
15. The method according to claim 9,

    And acquiring a signal of the second frequency band among signals received from the second antenna and transmitting the signal to the amplifier.

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