WO2021215714A1

WO2021215714A1 - Electronic device and method for setting, by electronic device, antenna path of transmission signal

Info

Publication number: WO2021215714A1
Application number: PCT/KR2021/004424
Authority: WO
Inventors: 장규재; 차재문; 고혜용; 변영식; 성정필; 양상혁; 조대영; 조현경; 진태경
Original assignee: 삼성전자 주식회사
Priority date: 2020-04-21
Filing date: 2021-04-08
Publication date: 2021-10-28
Also published as: KR20210130063A

Abstract

According to various embodiments, an electronic device comprises: a communication processor; at least one radio frequency integrated circuit (RFIC) connected to the communication processor; and a plurality of antennas for transmitting a signal corresponding to at least one communication network by being connected to the at least one RFIC, respectively, through at least one radio frequency front-end (RFFE) circuit, wherein the communication processor may control a base station to transmit a plurality of reference signals referred to for channel estimation, at different times through the plurality of antennas, respectively, identify power-related information fed back from an antenna transmission path corresponding to each antenna from among the plurality of antennas, during transmission of the reference signals, and set at least one antenna transmission path for transmitting a transmission signal from among a plurality of antenna transmission paths corresponding to the plurality of antennas, on the basis of the identified power-related information and maximum transmittable power regarding each antenna transmission path. Various other embodiments are possible.

Description

How to set an antenna path for a transmitted signal in an electronic device and an electronic device

Various embodiments of the present disclosure relate to an electronic device and a method of setting an antenna path of a transmission signal in the electronic device.

As the use of mobile terminals providing various functions has become common due to the development of mobile communication technology, efforts are being made to develop a 5G communication system to meet the increasing demand for wireless data traffic. In addition to the frequency band used in the 3G communication system and the LTE (long term evolution) communication system, the 5G communication system has a higher frequency band (eg, For example, implementation in the 25-60 GHz band) is being considered.

For example, in order to mitigate the path loss of radio waves and increase the propagation distance of radio waves in the mmWave band, in a 5G communication system, beamforming, massive MIMO, full dimensional MIMO; FD-MIMO), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

As a method of implementing 5G communication, a stand alone (SA) method and a non-stand alone (NSA) method are being considered. Among them, the SA method may be a method using only a new radio (NR) system, and the NSA method may be a method using an NR system together with an existing LTE system. In the NSA scheme, the user terminal may use the gNB of the NR system as well as the eNB of the LTE system. A technology that enables a user terminal to enable heterogeneous communication systems may be referred to as dual connectivity.

In order to transmit a signal from the electronic device to a communication network (eg, a base station), in the electronic device, a processor or data generated from the communication processor are transferred to a radio frequency integrated circuit (RFIC) and a radio frequency front end (RFFE) circuit (hereinafter, described below). For convenience, the signal may be processed through 'RFFE') and then transmitted to the outside of the electronic device through an antenna.

According to various embodiments, an electronic device supporting a plurality of communication networks may provide a plurality of transmission paths (Tx paths) for signal transmission for each communication network. The plurality of transmission paths provided to support a plurality of communication networks in the electronic device may include an RFIC and/or RFFE circuit for each path. In addition, each RFFE circuit may be connected to one or a plurality of antennas, and accordingly, the plurality of transmission paths may be divided into a plurality of antenna transmission paths (antenna Tx paths) corresponding to the plurality of antennas. .

In the plurality of antenna transmission paths, different path loss may occur because the length of each transmission path and/or components disposed on the transmission path are different. In addition, as each antenna corresponding to each antenna transmission path is disposed at different positions on the electronic device, different antenna losses may occur.

In various embodiments, when transmitting a transmission signal in an electronic device including a plurality of antenna transmission paths, an electronic device and an electronic device capable of setting an optimal antenna transmission path in consideration of a channel environment and/or path loss corresponding to each antenna An apparatus may provide a method for setting an antenna path of a transmission signal.

According to various embodiments, the electronic device includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front- end) a plurality of antennas connected through a circuit to transmit a signal corresponding to at least one communication network, wherein the communication processor is configured to collect a plurality of reference signals referenced for channel estimation in the base station. control to transmit at different times through each of the antennas of At least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas may be set based on the maximum transmittable power and the checked power related information.

According to various embodiments, the electronic device may include a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and a signal corresponding to the first communication network connected to the at least one RFIC. a first radio frequency front-end (RFFE) circuit configured to process, a second RFFE circuit coupled to the at least one RFIC and configured to process a signal corresponding to a second communication network, and at least one each with the at least one RFIC and a plurality of antennas connected through an RFFE circuit of at least one communication network to transmit a signal corresponding to the at least one communication network, wherein the communication processor collects a plurality of reference signals referenced for channel estimation in the base station. control to be transmitted at different times through each of the antennas of Among them, the power of the transmission signal for the second communication network is compared with a set threshold, and the comparison result corresponds to the plurality of antennas based on the maximum transmittable power for each antenna transmission path and the confirmed power-related information. At least one antenna transmission path through which a transmission signal for the second communication network is transmitted may be set among a plurality of antenna transmission paths.

According to various embodiments, a method of operating an electronic device includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and each of the at least one RFIC and at least one radio frequency integrated circuit (RFFE). In the method of setting a transmission path in an electronic device including a plurality of antennas connected through a frequency front-end circuit and transmitting a signal corresponding to at least one communication network, a plurality of references referenced for channel estimation in a base station An operation of transmitting reference signals at different times through each of the plurality of antennas, and checking power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas when the reference signal is transmitted at least one antenna transmission path for transmitting a transmission signal among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the maximum transmittable power for each antenna transmission path and the identified power-related information It may include an operation of setting.

According to various embodiments, a method of operating an electronic device corresponds to a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and a first communication network connected to the at least one RFIC. a first radio frequency front-end (RFFE) circuit configured to process a signal to In the method for setting a transmission path in an electronic device including a plurality of antennas connected through at least one RFFE circuit and transmitting a signal corresponding to at least one communication network, a plurality of references referenced for channel estimation in a base station An operation of transmitting reference signals at different times through each of the plurality of antennas, and checking power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas when the reference signal is transmitted comparing the power of a transmission signal for a second communication network among the plurality of communication networks with a set threshold value; and transmitting the transmission signal for the second communication network among the plurality of antenna transmission paths corresponding to the plurality of antennas based on the comparison result, the maximum transmittable power for each antenna transmission path and the confirmed power related information. It may include the operation of setting at least one antenna transmission path.

According to various embodiments, based on information fed back from a reference signal (eg, a sounding reference signal (SRS)) transmitted through each antenna transmission path in an electronic device providing a plurality of antenna transmission paths ( antenna loss), it is possible to select an optimal antenna transmission path when transmitting a transmission signal.

According to various embodiments, in an electronic device that provides a plurality of antenna transmission paths, the coverage of the base station may be expanded by selecting an antenna transmission path of an antenna through which signal radiation is best for each antenna.

5G NSA call drop by allowing an electronic device that supports EN-DC and provides a plurality of antenna transmission paths to select an optimal antenna transmission path under specific conditions for a transmission signal corresponding to an LTE communication network according to various embodiments (call drop) can be prevented.

According to various embodiments, when a specific absorption rate (SAR) backoff event occurs in an electronic device providing a plurality of antenna transmission paths, an antenna transmission path corresponding to an antenna having the best signal radiation is selected for each antenna By doing so, it is possible to prevent deterioration of the performance of the transmission signal.

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

2A is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure;

2B is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure;

2C is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure;

3A is a diagram illustrating wireless communication systems that provide a network of legacy communication and/or 5G communication according to various embodiments of the present disclosure;

3B is a diagram illustrating wireless communication systems that provide a network of legacy communication and/or 5G communication according to various embodiments of the present disclosure;

3C is a diagram illustrating wireless communication systems that provide a network of legacy communication and/or 5G communication according to various embodiments of the present disclosure;

4A is a block diagram of an electronic device according to various embodiments of the present disclosure;

4B is a block diagram of an electronic device according to various embodiments of the present disclosure;

4C is a block diagram of an electronic device according to various embodiments of the present disclosure;

4D is a block diagram of an electronic device according to various embodiments.

5 is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure;

6A is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure;

6B is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure;

6C is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure;

7 is a block diagram of an electronic device according to various embodiments of the present disclosure;

8 is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure;

9 is a block diagram illustrating a structure of an electronic device according to various embodiments of the present disclosure;

10 is a flowchart illustrating a signal transmission/reception procedure between an electronic device and a communication network according to various embodiments of the present disclosure;

11 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

12 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

13 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

14 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

15 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

16 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1 , in a network environment 100 , the electronic device 101 communicates with the electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance 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 , a sound output device 155 , a display device 160 , an audio module 170 , and 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 . ) may be included. In some embodiments, at least one of these components (eg, 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, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be loaded into the volatile memory 132 , process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphics processing unit, an image signal processor) that can be operated independently or in conjunction with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 may be, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions 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 a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound 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 incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display device 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, 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 intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, 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 IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with 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 an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an 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 moving images. 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 388 may be implemented as, for example, 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, 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 establishment and communication through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support 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, : It may include a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module may be a first network 198 (eg, 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 an external electronic device via a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal (eg commands 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 the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be executed by one or more of the external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. The one or more external electronic devices that have received 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 transmit a 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 a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2A is a block diagram 200 of an electronic device 101 for supporting legacy network communication and 5G network communication, according to various embodiments. Referring to FIG. 2A , the electronic device 101 includes a first communication processor 212 , a second communication processor 214 , a first radio frequency integrated circuit (RFIC) 222 , a second RFIC 224 , and a third RFIC 226 , fourth RFIC 228 , first radio frequency front end (RFFE) 232 , second RFFE 234 , first antenna module 242 , second antenna module 244 , third An antenna module 246 and antennas 248 may be included. The electronic device 101 may further include a processor 120 and a memory 130 . The second network 199 may include a first cellular network 292 and a second cellular network 294 . According to another embodiment, the electronic device 101 may further include at least one component among the components illustrated in FIG. 1 , and the second network 199 may further include at least one other network. According to an embodiment, a first communication processor 212 , a second communication processor 214 , a first RFIC 222 , a second RFIC 224 , a fourth RFIC 228 , a first RFFE 232 , and the second RFFE 234 may form at least a part of the wireless communication module 192 . According to another embodiment, the fourth RFIC 228 may be omitted or may be included as a part of the third RFIC 226 .

The first communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with the first cellular network 292 and legacy network communication through the established communication channel. According to various embodiments, the first cellular network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second cellular network 294 , and a 5G network through the established communication channel communication can be supported. According to various embodiments, the second cellular network 294 may be a 5G network defined by 3GPP. Additionally, according to an embodiment, the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second cellular network 294 . It is possible to support the establishment of a communication channel, and 5G network communication through the established communication channel.

The first communication processor 212 may transmit/receive data to and from the second communication processor 214 . For example, data classified to be transmitted over the second cellular network 294 may be changed to be transmitted over the first cellular network 292 . In this case, the first communication processor 212 may receive transmission data from the second communication processor 214 . For example, the first communication processor 212 may transmit and receive data through the second communication processor 214 and the interprocessor interface 213 . The interprocessor interface 213 may be implemented as, for example, a universal asynchronous receiver/transmitter (UART) (eg, high speed-UART (HS-UART) or peripheral component interconnect bus express (PCIe) interface). Alternatively, the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using, for example, a shared memory. The communication processor 212 may transmit/receive various information such as sensing information, information on output strength, and resource block (RB) allocation information with the second communication processor 214 .

Depending on the implementation, the first communication processor 212 may not be directly connected to the second communication processor 214 . In this case, the first communication processor 212 may transmit and receive data through the second communication processor 214 and the processor 120 (eg, an application processor). For example, the first communication processor 212 and the second communication processor 214 may transmit and receive data with the processor 120 (eg, an application processor) through the HS-UART interface or the PCIe interface, but There is no restriction on the type. Alternatively, the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using a shared memory with the processor 120 (eg, an application processor). .

According to one embodiment, the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or a single package. According to various embodiments, the first communication processor 212 or the second communication processor 214 may be formed in a single chip or a single package with the processor 120 , the coprocessor 123 , or the communication module 190 . have. For example, as shown in FIG. 2B , the unified communication processor 260 may support both functions for communication with the first cellular network 292 and the second cellular network 294 .

The first RFIC 222, when transmitting, transmits a baseband signal generated by the first communication processor 212 from about 700 MHz to about 700 MHz used for the first cellular network 292 (eg, a legacy network). It can be converted to a radio frequency (RF) signal of 3 GHz. Upon reception, an RF signal is obtained from a first network 292 (eg, a legacy network) via an antenna (eg, a first antenna module 242 ), and via an RFFE (eg, a first RFFE 232 ). It can be preprocessed. The first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212 .

The second RFIC 224, when transmitting, uses the baseband signal generated by the first communication processor 212 or the second communication processor 214 to the second cellular network 294 (eg, a 5G network). It can be converted into an RF signal (hereinafter, 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). Upon reception, a 5G Sub6 RF signal is obtained from a second cellular network 294 (eg, 5G network) via an antenna (eg, second antenna module 244 ), and an RFFE (eg, second RFFE 234 ) ) can be preprocessed. The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 212 or the second communication processor 214 .

The third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second cellular network 294 (eg, 5G network). It can be converted into an RF signal (hereinafter referred to as 5G Above6 RF signal). Upon reception, a 5G Above6 RF signal may be obtained from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and pre-processed via a third RFFE 236 . The third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214 . According to one embodiment, the third RFFE 236 may be formed as part of the third RFIC 226 .

According to an embodiment, the electronic device 101 may include the fourth RFIC 228 separately from or as at least a part of the third RFIC 226 . In this case, the fourth RFIC 228 converts the baseband signal generated by the second communication processor 214 into an RF signal (hereinafter, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transmitted to the third RFIC 226 . The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, the 5G Above6 RF signal may be received from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and converted to an IF signal by the third RFIC 226 . have. The fourth RFIC 228 may convert the IF signal into a baseband signal for processing by the second communication processor 214 .

According to an embodiment, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least a part of a single package. According to various embodiments, when the first RFIC 222 and the second RFIC 224 in FIG. 2A or 2B are implemented as a single chip or a single package, the integrated RFIC 223 is implemented as shown in FIG. 2C. can be In this case, the integrated RFIC 223 is connected to the first RFFE 232 and the second RFFE 234 so that the integrated RFIC 223 transmits a baseband signal to the first RFFE 232 and/or the second RFFE 234 . may be converted into a signal of a band supported by , and the converted signal may be transmitted to one of the first RFFE 232 and the second RFFE 234 . According to an embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as at least a part of a single chip or a single package. According to an embodiment, at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or may be combined with another antenna module to process RF signals of a plurality of corresponding bands.

According to an embodiment, the third RFIC 226 and the antenna 248 may be disposed on the same substrate to form the third antenna module 246 . For example, the wireless communication module 192 or the processor 120 may be disposed on the first substrate (eg, main PCB). In this case, the third RFIC 226 is located in a partial area (eg, bottom) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is located in another partial region (eg, top). is disposed, the third antenna module 246 may be formed. By disposing the third RFIC 226 and the antenna 248 on the same substrate, it is possible to reduce the length of the transmission line therebetween. This, for example, can reduce loss (eg, attenuation) of a signal in a high-frequency band (eg, about 6 GHz to about 60 GHz) used for 5G network communication by a transmission line. Accordingly, the electronic device 101 may improve the quality or speed of communication with the second network 294 (eg, a 5G network).

According to an embodiment, the antenna 248 may be formed as an antenna array including a plurality of antenna elements that may be used for beamforming. In this case, the third RFIC 226 may include, for example, as a part of the third RFFE 236 , a plurality of phase shifters 238 corresponding to the plurality of antenna elements. During transmission, each of the plurality of phase shifters 238 may transform the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, a base station of a 5G network) through a corresponding antenna element. . Upon reception, each of the plurality of phase shifters 238 may convert the phase of the 5G Above6 RF signal received from the outside through a corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

The second cellular network 294 (eg, 5G network) may be operated independently (eg, Stand-Alone (SA)) or connected to the first cellular network 292 (eg, legacy network). Example: Non-Stand Alone (NSA)). For example, the 5G network may have only an access network (eg, 5G radio access network (RAN) or next generation RAN (NG RAN)) and no core network (eg, next generation core (NGC)). In this case, after accessing the access network of the 5G network, the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network. Protocol information for communication with a legacy network (eg, LTE protocol information) or protocol information for communication with a 5G network (eg, New Radio (NR) protocol information) is stored in the memory 230 , and other components (eg, processor 120 , the first communication processor 212 , or the second communication processor 214 ).

3A, 3B, and 3C are diagrams illustrating wireless communication systems that provide networks of legacy communication and/or 5G communication according to various embodiments. Referring to FIGS. 3A, 3B and 3C , the network environments 300a to 300c may include at least one of a legacy network and a 5G network. The legacy network is, for example, a 3GPP standard 4G or LTE base station 340 (eg, eNB (eNodeB)) supporting a wireless connection with the electronic device 101 and an evolved packet (EPC) for managing 4G communication. core) 342 . The 5G network, for example, manages 5G communication between the electronic device 101 and a New Radio (NR) base station 350 (eg, gNB (gNodeB)) supporting wireless connection and the electronic device 101 . It may include a 5th generation core (5GC) 352.

According to various embodiments, the electronic device 101 may transmit/receive a control message and user data through legacy communication and/or 5G communication. The control message is, for example, a message related to at least one of security control, bearer setup, authentication, registration, or mobility management of the electronic device 101 . may include. The user data may refer to, for example, user data excluding a control message transmitted/received between the electronic device 101 and the core network 330 (eg, the EPC 342 ).

Referring to FIG. 3A , the electronic device 101 according to an embodiment uses at least a part of a legacy network (eg, the LTE base station 340 and the EPC 342 ) to at least a part of a 5G network (eg: The NR base station 350 and the 5GC 352 may transmit/receive at least one of a control message or user data.

According to various embodiments, network environment 300a provides wireless communication dual connectivity (DC) to LTE base station 340 and NR base station 350 , and either EPC 342 or 5GC 352 . It may include a network environment in which a control message is transmitted and received with the electronic device 101 through the core network 230 of the .

According to various embodiments, in a DC environment, one of the LTE base station 340 or the NR base station 350 operates as a master node (MN) 310 and the other operates as a secondary node (SN) 320 . can do. The MN 310 may be connected to the core network 230 to transmit and receive control messages. The MN 310 and the SN 320 may be connected through a network interface to transmit/receive messages related to radio resource (eg, communication channel) management with each other.

According to various embodiments, the MN 310 may be configured as the LTE base station 340 , the SN 320 may be configured as the NR base station 350 , and the core network 330 may be configured as the EPC 342 . For example, a control message may be transmitted/received through the LTE base station 340 and the EPC 342 , and user data may be transmitted/received through at least one of the LTE base station 340 and the NR base station 350 .

According to various embodiments, the MN 310 may include the NR base station 350 , the SN 320 may include the LTE base station 340 , and the core network 330 may include the 5GC 352 . For example, a control message may be transmitted/received through the NR base station 350 and the 5GC 352 , and user data may be transmitted/received through at least one of the LTE base station 340 or the NR base station 350 .

Referring to FIG. 3B , according to various embodiments, a 5G network may include an NR base station 350 and a 5GC 352 , and may independently transmit/receive a control message and user data to/from the electronic device 101 .

Referring to FIG. 3C , a legacy network and a 5G network according to various embodiments may independently provide data transmission/reception. For example, the electronic device 101 and the EPC 342 may transmit and receive a control message and user data through the LTE base station 340 . As another example, the electronic device 101 and the 5GC 352 may transmit and receive a control message and user data through the NR base station 350 .

According to various embodiments, the electronic device 101 may be registered with at least one of the EPC 342 and the 5GC 352 to transmit/receive a control message.

According to various embodiments, the EPC 342 or the 5GC 352 may interwork to manage communication of the electronic device 101 . For example, movement information of the electronic device 101 may be transmitted/received through an interface between the EPC 342 and the 5GC 352 .

As described above, dual connectivity through the LTE base station 340 and the NR base station 350 may be referred to as E-UTRA new radio dual connectivity (EN-DC).

Hereinafter, the structure of the electronic device 101 according to various embodiments will be described with reference to FIGS. 4A, 4B, 4C, 4D, 5, 6A, 6B, 6C, 7, 8, and 9 . It will be described in detail. In each drawing of the embodiments to be described later, one

communication processor

260, 610 and one

RFIC

410, 620 are a plurality of

RFFEs

431, 432, 433, 510, 520, 631, 632, 712 to 772, 811 and 812), various embodiments to be described later are not limited thereto. For example, various embodiments to be described below may include a plurality of

communication processors

212, 214 and/or a plurality of

RFICs

222, 224, 226, and 228 as also shown in FIG. 2A or FIG. 2B, a plurality of RFFEs ( 431, 432, 433, 510, 520, 631, 632, 712 to 772, 811, 812), respectively.

4A and 4B are block diagrams of an electronic device according to various embodiments. According to various embodiments, FIG. 4A shows an embodiment in which the electronic device 101 has two transmission paths based on RFFE and operates as stand alone (SA) or non stand alone (NSA), and FIG. 4B shows An embodiment in which the electronic device 101 has three transmission paths based on RFFE and operates as an NSA will be described.

Referring to FIG. 4A , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a processor 120 , a communication processor 260 , an RFIC 410 , a first RFFE 431 , and a first 2 RFEE 432 , a first antenna 441 , a second antenna 442 , a third antenna 443 , a fourth antenna 444 , a first switch 451 , or a second switch 452 . can do. For example, the first RFFE 431 may be disposed at an upper end in the housing of the electronic device 101 , and the second RFFE 432 may be disposed at a lower end in the housing of the electronic device 101 . However, various embodiments are not limited to the arrangement position.

According to various embodiments, the RFIC 410, when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network. can be converted to For example, the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 441 or the second antenna 442 through the first RFFE 431 and the first switch 451 . . In addition, the RFIC 410 transmits the RF signal used for the first communication network to the third antenna 443 or the fourth through the first RFFE 431 , the first switch 451 , and the second switch 452 . may be transmitted to the antenna 444 .

According to various embodiments, a transmission path transmitted from the RFIC 410 to the first antenna 441 through the first RFFE 431 and the first switch 451 is defined as a 'first antenna transmission path (Ant Tx 1). ) can be referred to as '. A transmission path transmitted from the RFIC 410 to the second antenna 442 through the first RFFE 431 and the first switch 451 may be referred to as a 'second antenna transmission path (Ant Tx 2)'. have. A transmission path transmitted from the RFIC 410 to the third antenna 443 through the first RFFE 431, the first switch 451, and the second switch 452 is defined as a 'third antenna transmission path (Ant Tx). 3) can be referred to as '. A transmission path transmitted from the RFIC 410 to the fourth antenna 444 through the first RFFE 431 , the first switch 451 , and the second switch 452 is defined as a 'fourth antenna transmission path (Ant Tx). 4) can be referred to as '. According to various embodiments, different path loss may occur in the four antenna transmission paths because the length of each transmission path and/or components disposed on the transmission path are different. In addition, each antenna (eg, the first antenna 441 , the second antenna 442 , the third antenna 443 , and the fourth antenna 444 ) corresponding to each antenna transmission path is connected to each other on the electronic device 101 . As they are disposed in different positions, different antenna losses may occur. A detailed description thereof will be provided later. In various embodiments, when the transmission signal is transmitted by the electronic device 101 including the plurality of antenna transmission paths, each antenna (eg, the first antenna 441 , the second antenna 442 , and the third antenna 443 ) ), an optimal antenna transmission path may be set in consideration of a channel environment and/or path loss corresponding to the fourth antenna)).

According to various embodiments, the RFIC 410 may, upon transmission, convert a baseband signal generated by the communication processor 260 into a radio frequency (RF) signal used in the second communication network. . For example, the RFIC 410 may transmit an RF signal used for the second communication network to the third antenna 443 or the fourth antenna 444 through the second RFFE 432 and the second switch 451 . . In addition, the RFIC 410 transmits the RF signal used for the second communication network to the first antenna 441 or the second through the second RFFE 432 , the second switch 452 , and the first switch 451 . may be transmitted to the antenna 442 .

According to various embodiments, a transmission path transmitted from the RFIC 410 to the third antenna 443 through the second RFFE 432 and the second switch 452 is defined as a 'fifth antenna transmission path (Ant Tx 5). ) can be referred to as '. A transmission path transmitted from the RFIC 410 to the fourth antenna 444 through the second RFFE 432 and the second switch 452 may be referred to as a 'sixth antenna transmission path (Ant Tx 6)'. have. A transmission path transmitted from the RFIC 410 to the first antenna 441 through the second RFFE 432 , the second switch 452 , and the first switch 451 is defined as a 'seventh antenna transmission path (Ant Tx). 7) can be referred to as '. A transmission path transmitted from the RFIC 410 to the second antenna 442 through the second RFFE 432 , the second switch 452 , and the first switch 451 is defined as an 'eighth antenna transmission path (Ant Tx). 8) can be referred to as '. According to various embodiments, different path loss may occur in the four antenna transmission paths because the length of each transmission path and/or components disposed on the transmission path are different. In addition, each antenna (eg, the first antenna 441 , the second antenna 442 , the third antenna 443 , and the fourth antenna) corresponding to each antenna transmission path is located at a different location on the electronic device 101 . Depending on the arrangement in the , different antenna loss may occur.

According to various embodiments, upon reception, an RF signal is obtained from a first communication network via a first antenna 441 or a second antenna 442 , and a first RFFE 431 via a first switch 451 . can be preprocessed through The RFIC 410 may convert the RF signal preprocessed through the first RFFE 431 into a baseband signal to be processed by the communication processor 260 . In addition, the RF signal may be obtained from the second communication network through the third antenna 443 or the fourth antenna 444 , and preprocessed through the second RFFE 432 through the second switch 452 . have. The RFIC 410 may convert the preprocessed RF signal through the second RFFE 432 into a baseband signal to be processed by the communication processor 260 .

According to various embodiments, the first communication network and the second communication network may be different communication networks. For example, the first communication network may be a 5G network, and the second communication network may be a legacy network (eg, an LTE network). When the first communication network is a 5G network, the first RFFE 431 is designed to be suitable for processing a signal corresponding to the 5G network, and the second RFFE 432 processes a signal corresponding to the legacy network. It can be designed to be suitable for

According to various embodiments, a frequency band of a signal transmitted through the first RFFE 431 and a frequency band of a signal transmitted through the second RFFE 432 may be the same, similar, or different. For example, the frequency band of the signal transmitted through the first RFFE 431 may be the N41 band (2.6 GHz), which is the frequency band of the 5G network, and the frequency band of the signal transmitted through the second RFFE 431 is It may be the B41 band (2.6 GHz), which is the frequency band of the LTE network. In this case, the first RFFE 431 and the second RFFE 432 process the same or similar frequency band signals, but the first RFFE 431 is designed to enable signal processing suitable for the characteristics of the 5G network. In addition, the second RFFE 432 may be designed to enable signal processing suitable for the characteristics of the LTE network.

According to various embodiments, the first RFFE 431 may be designed to process a signal of a wider frequency bandwidth than the second RFFE 432 . For example, the first RFFE 431 may be designed to process up to a frequency bandwidth of 100 MHz, and the second RFFE 432 may be designed to process up to a frequency bandwidth of 60 MHz.

According to various embodiments, the first RFFE 431 includes additional components (eg, SRS (eg, SRS) A single pole double throw (SPDT) switch for transmitting a sounding reference signal, a filter to prevent interference between a 5G signal and a WIFI signal of a similar band, a component for separating the WIFI signal from the received signal, and other 5G band signals It may further include a duplexer for separating). Since the first RFFE 431 further includes an additional component compared to the second RFFE 432 , attenuation (eg, path loss) generated according to the processing of the transmission signal may be greater. For example, even if the power amplifier of the first RFFE 431 and the power amplifier of the second RFFE 432 are respectively controlled so that a signal of the same power is transmitted from the RFIC 410, the path loss of the first RFFE 431 is Since the second RFFE 432 is larger than the path loss, the magnitude of the signal transmitted through the first antenna module 441 may be smaller than the magnitude of the signal transmitted through the second antenna module 442 .

Referring to <Table 1> below, the current consumed when transmitting the N41 band signal, which is the 5G band frequency signal, through the first RFFE 431, and the second RFFE 432 can be compared. have.

n41n41			제1 RFFE 경로first RFFE path	제2 RFFE 경로second RFFE path	Delta(Δ)Delta(Δ)
NR (CP OFDM)NR (CP OFDM)	n41 60MHz 518598CH -50dBm loss -16n41 60 MHz 518598CH -50dBm loss -16	-20dBm-20dBm	333mA333mA	269mA269mA	-64-64
		0dBm0dBm	330mA330mA	271mA271mA	-59-59
		10dBM10 dBM	341mA341mA	284mA284mA	-57-57
		15dBm15dBm	371mA371mA	311mA311mA	-60-60
		20dBm20dBm	415mA415mA	340mA340mA	-75-75
		Max PowerMax Power	445(21.8dBm)445 (21.8 dBm)	352(21.3dBm)352 (21.3dBm)	-93-93

Referring to <Table 1>, even when the same N41 band signal is transmitted, a difference in current consumption may occur depending on the transmission path of the transmission signal. For example, when the N41 band signal is transmitted through the second RFFE 432, the path loss appears to be about 2.5 to 3 dB smaller than when transmitted through the first RFFE 431. Also, as shown in Table 2 below, it can be seen that a difference in total radiated power (TRP) remains in almost all frequency domains even within the same N41 band or B41 band.

Model#1 Model#1	LowLow	MidMid	High High		Model#2Model#2	LowLow	MidMid	HighHigh	비고note
N41(dBm)N41 (dBm)	17.817.8	17.717.7	17.517.5	N41(dBm)N41 (dBm)	1919	17.717.7	18.518.5	제1 RFFE 경로first RFFE path
B41(dBm)B41 (dBm)	1818	19.719.7	1818	B41(dBm)B41 (dBm)	18.818.8	19.819.8	18.818.8	제2 RFFE 경로second RFFE path

Referring to <Table 2>, as a result of testing in electronic devices of two models, Model #1 and Model #2, the second RFFE 432 is higher than the TRP of the signal transmitted through the first RFFE 431. It can be seen that the TRP of the transmitted signal is higher in almost all frequency domains. In addition, as shown in Table 3 below, the end of the first RFFE 431 (eg, an antenna port) A path loss before radiation from the first antenna 441 or the second antenna 442 and a third antenna 443 at the end (eg, antenna port) of the second RFFE 432 . ) or it can be seen that a difference in path loss before radiation from the fourth antenna 444 remains.

경로 구분path division	2.6GHz2.6GHz	2.6GHz2.6GHz	2.69GHz2.69GHz
상단 N41 주파수별 경로 손실(path loss)(dBm)Top N41 Path loss per frequency (dBm)	4.594.59	4.024.02	4.224.22
하단 B41 주파수별 경로 손실(path loss)(dBm)Bottom B41 Path loss per frequency (dBm)	2.12.1	22	2.32.3

Referring to <Table 3>, the path loss for the upper N41 path transmitted through the first RFFE 431 is greater than the path loss for the lower BN41 path transmitted through the second RFFE 432 by 2 dBm or more. According to various embodiments, even when the first RFFE 431 transmits a signal of the same size, the power actually radiated from the first antenna 441 through the first antenna transmission path and the second antenna Power actually radiated from the second antenna 442 through the transmission path, power actually radiated from the third antenna 443 through the third antenna transmission path, and the fourth antenna 444 through the fourth antenna transmission path The power actually radiated from the antenna may appear differently as reflected power from each antenna is different from each other. A detailed description thereof will be provided later.

According to various embodiments, the first communication network may be a 5G network, and the second communication network may be a legacy network (eg, an LTE network). For example, the first communication network is a communication network that transmits and receives a mid/high band NR (eg, N41 band) signal, and the second communication network is a mid/high band LTE (eg, B2 or B41 band) may be a communication network that transmits and receives signals.

According to various embodiments, when the first communication network transmits and receives signals in the N41 band of the 5G network, the first RFFE 431 is designed to be suitable for processing a signal corresponding to the 5G network, and the second RFFE 432 ) may be designed to be suitable for processing medium/high-band LTE signals (eg, B2 or B41 band signals). At least one of the first RFFE 431 and the second RFFE 432 may be configured in the form of a power amplitude module including duplexer (PAMiD).

According to various embodiments, a frequency band of a signal transmitted through the first RFFE 431 and a frequency band of a signal transmitted through the second RFFE 432 may be the same, similar, or different. For example, the frequency band of the signal transmitted through the first RFFE 431 may be the N41 band (2.6 GHz), which is a high frequency band of the 5G network, and the frequency band of the signal transmitted through the second RFFE 432 . may be the B41 band (2.6 GHz), which is a high-band frequency of the LTE network. In this case, the first RFFE 431 and the second RFFE 432 process the same or similar frequency band signals, but the first RFFE 431 is designed to enable signal processing suitable for the characteristics of the 5G network. In addition, the second RFFE 432 may be designed to enable signal processing suitable for the characteristics of the LTE network.

According to another embodiment, the frequency band of the signal transmitted through the first RFFE 434 may be the N41 band (2.6 GHz), which is a high-band frequency of the 5G network, and the frequency band of the signal transmitted through the second RFFE 432 is The frequency band may be a B2 band (1.9 GHz), which is a mid-band frequency of the LTE network.

According to various embodiments, the second RFFE 432 is designed to be suitable for processing a mid/high-band LTE signal (eg, a B2 or B41 band signal), so that the first RFFE 431 and the electronic device 101 are It can operate with various types of EN-DC. For example, the first RFFE 431 and the second RFFE 432 may be combined to operate as EN-DC of B2-N41 or as EN-DC of B41-N41.

Referring to FIG. 4B , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a processor 120 , a communication processor 260 , an RFIC 410 , a first RFFE 431 , and a first 2 RFEEs 432 , a third RFEE 433 , a first antenna 441 , a second antenna 442 , a third antenna 443 , a fourth antenna 444 , and a fifth antenna 445 . can

According to various embodiments, the RFIC 410, when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in a first communication network or a second communication network. can be converted into a signal. For example, the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 441 or the second antenna 442 through the first RFFE 431 and the first switch 451 . . In addition, the RFIC 410 transmits the RF signal used for the first communication network to the third antenna 443 or the fourth through the first RFFE 431 , the first switch 451 , and the second switch 452 . may be transmitted to the antenna 444 .

According to various embodiments, the RFIC 410 may, upon transmission, convert a baseband signal generated by the communication processor 260 into a radio frequency (RF) signal used in the second communication network. . For example, the RFIC 410 may transmit an RF signal used for the second communication network to the third antenna 443 or the fourth antenna 444 through the second RFFE 432 and the second switch 452 . . In addition, the RFIC 410 transmits the RF signal used for the second communication network to the first antenna 441 or the second through the second RFFE 432 , the second switch 452 , and the first switch 451 . may be transmitted to the antenna 442 .

According to various embodiments, the RFIC 410 may, upon transmission, convert a baseband signal generated by the communication processor 260 into a radio frequency (RF) signal used in a third communication network. . For example, the RFIC 410 may transmit an RF signal used for the third communication network to the fifth antenna 445 through the third RFEE 433 .

According to various embodiments, upon reception, an RF signal is obtained from a first communication network via a first antenna 441 or a second antenna 442 , and a first RFFE 431 via a first switch 451 . can be preprocessed through The RFIC 410 may convert the RF signal preprocessed through the first RFFE 431 into a baseband signal to be processed by the communication processor 260 . In addition, the RF signal may be obtained from the second communication network through the third antenna 443 or the fourth antenna 444 , and preprocessed through the second RFFE 432 through the second switch 452 . have. The RFIC 410 may convert the preprocessed RF signal through the second RFFE 432 into a baseband signal to be processed by the communication processor 260 . In addition, the RF signal may be obtained from the third communication network through the fifth antenna 445 and preprocessed through the third RFFE 433 . The RFIC 410 may convert the preprocessed RF signal through the third RFFE 433 into a baseband signal to be processed by the communication processor 260 .

According to various embodiments, the first communication network, the second communication network, and the third communication network may be the same or different communication networks. For example, the first communication network may be a 5G network, and the second communication network and the third communication network may be a legacy network (eg, an LTE network). According to various embodiments, the second communication network and the third communication network may support communication of different frequency bands even though they are the same LTE network. For example, the second communication network is a communication network for transmitting and receiving a high-band LTE (eg, B41 band) signal, and the fourth communication network is a low-band LTE (eg, B5 band, B12 band). , or B71 band) may be a communication network that transmits and receives signals. According to various embodiments, the low band frequency may be 0.6 GHz to 1.0 GHz, the mid band frequency may be 1.7 GHz to 2.2 GHz, and the high band frequency is 2.3 It may be GHz ~ 3.7 GHz, but this is divided as an example for better understanding, and various embodiments are not limited to the specific frequency ranges.

According to various embodiments, when the first communication network transmits and receives signals in the N41 band of the 5G network, the first RFFE 431 is designed to be suitable for processing a signal corresponding to the 5G network, and the second RFFE 432 is designed to be suitable for processing a high-band LTE signal (eg, a B41 band signal), and the third RFFE 433 may be designed to be suitable for processing a low-band LTE signal (eg, a B5 band signal). At least one of the second RFFE 432 and the third RFFE 433 may be configured in the form of a power amplitude module including duplexer (PAMiD).

According to various embodiments, the first RFFE 431 includes additional components (eg, SRS (eg, SRS) A single pole double throw (SPDT) switch for transmitting a sounding reference signal, a filter to prevent interference between a 5G signal and a WIFI signal of a similar band, a component for separating the WIFI signal from the received signal, and other 5G band signals It may further include a duplexer for separating). Since the first RFFE 431 further includes an additional component compared to the second RFFE 432 , attenuation (eg, path loss) generated according to the processing of the transmission signal may be greater. For example, the path loss of the first RFFE 431 even when the power amplifier of the first RFFE 431 and the power amplifier of the second RFFE 432 are respectively controlled so that a signal of the same power is transmitted from the RFIC 410 . Since the second RFFE 432 is greater than the path loss, the magnitude of the signal transmitted through the first antenna module 441 may be smaller than the magnitude of the signal transmitted through the second antenna module 442 .

Referring to FIG. 4B , according to various embodiments, the electronic device 101 transmits an NR band signal (eg, an N41 band signal) through a first RFFE 431 and simultaneously transmits an LTE band signal through a third RFFE 433 . It can operate as an EN-DC or NE-DC transmitting a signal (eg, a B5 band signal). For example, as shown in FIGS. 3A and 3C , the LTE band signal through the third RFFE 433 operates as an EN-DC connected to the LTE core 342 through the LTE base station 340, or the first RFFE The NR band signal through 431 may operate as NR E-UTRA dual connectivity (NE-DC) in which the NR band signal is connected to the 5G core 352 of the NR through the NR base station 350 .

According to various embodiments, after the electronic device 101 is connected to the second communication network (eg, LTE network), it is simultaneously connected to the first communication network (5G network) through the second communication network to operate as an EN-DC can do.

4C is a detailed block diagram of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 4C , an electronic device according to various embodiments (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , an RFIC 410 , a first RFFE 431 , and a first antenna 441 . , a second RFEE 432 , and a second antenna 442 .

According to various embodiments, the first RFFE 431 may further include additional components different from the second RFFE 432 for signal processing suitable for the characteristics of the 5G network or for support of multi-band. can For example, the first RFFE 431 may include a front end module (FEM) 460 and a first single pole double throw (SPDT) switch 470 .

According to various embodiments, the FEM 460 may include a power amplifier (PA) 461 , a switch 462 , and a filter 463 . According to various embodiments, the FEM 460 is connected to the PA ET IC (envelop tracking IC) 464 to amplify power according to the amplitude of the signal, thereby reducing current consumption and heat generation and improving the performance of the PA 461. can

According to various embodiments, the first SPDT switch 470 includes a first communication network signal (eg, N41 band signal) and a sounding reference signal (SRS) transmitted from the RFIC 410 through the FEM 460 (eg, N41 band SRS signal) may be selectively output and transmitted through the first antenna 441 . For example, the first SPDT switch 470 for the SRS transmission and the first RFFE 431 configured inside the 5G signal processing or multi-band signal processing generated according to the processing of the transmission signal by the added components. Attenuation (eg, path loss) may be greater than the second RFFE 432 . For example, even if the communication processor 260 controls the power amplifier of the first RFFE 431 and the power amplifier of the second RFFE 432 so that a signal of the same power is transmitted, the path of the first RFFE 431 is Since the loss is greater than the path loss of the second RFFE 432 , the magnitude of the signal transmitted through the first antenna module 441 may be smaller than the magnitude of the signal transmitted through the second antenna module 442 . .

4D is a detailed block diagram of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 4D , various components for signal processing may be further included on a first transmission path transmitted through the first communication network according to various embodiments.

For example, the electronic device 101 includes a first filter 481, a second filter 482, and second SPDT switches 483-1 in addition to the first SPDT switch 470 described above in FIG. 4C on the first transmission path. 483-2), a third filter 484, and a fourth filter 485 may be further included.

According to various embodiments, the first filter 481 may be a filter for preventing the NR band transmission signal from affecting the WIFI band signal (eg, 5 GHz). The second filter 482 may be a filter for transmitting the N41 signal and the diversity reception (DRx (diversity Rx)) signal of B2 separately along each path when the EN-DC combination such as N41-B2 is used. For example, the N41 transmission signal may be transmitted to the third filter 484 through the 2-1 switch 483-1, and the DRx signal of B2 is received through the 2-2 switch 483-2. may be transmitted to RFIC 410 via circuit 486 . The receiving circuit 486 may include at least one low noise amplifier (LNA).

According to various embodiments, the third filter 484 may separate a WIFI signal (eg, a 2.4 GHz band signal) and a legacy signal, and the fourth filter 485 is a different NR frequency band signal (eg, an N79 band signal). ) can be separated.

As shown in FIG. 4D , as various components are added on the first transmission path configured for NR band signal transmission, the path loss PL is relatively large compared to the second transmission path through the second RFFE 432 . Accordingly, a large amount of current consumption may occur.

5 is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 5 , the electronic device (eg, the electronic device 101 of FIG. 1 ) includes an RFIC 410 , a first RFFE 510 , a second RFFE 520 , a first coupler 511 , and a second coupler. 512 , a first switch 512 , a second switch 522 , a third switch 550 , a first antenna 531 , a second antenna 532 , a third antenna 533 , a fourth antenna ( 534) may be included.

According to various embodiments, the RFIC 410, when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network. can be converted to For example, the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 531 or the second antenna 532 through the first RFFE 510 and the first switch 512 . . In addition, the RFIC 410 transmits the RF signal used in the first communication network to the third antenna 533 or the fourth through the first RFFE 510 , the first switch 512 , and the second switch 522 . It can be transmitted to the antenna 534 . According to various embodiments, the communication processor 260 and/or the RFIC 410 controls the first RFFE 510 , the first switch 512 , and the second switch 522 to transmit to the first communication network. A signal may be transmitted through the first antenna 531 , the second antenna 532 , the third antenna 533 , or the fourth antenna 534 .

According to various embodiments, a transmission path transmitted from the RFIC 410 to the first antenna 531 through the first RFFE 510 and the first switch 512 is defined as a 'first antenna transmission path (Ant Tx 1 ). ) can be referred to as '. A transmission path transmitted from the RFIC 410 to the second antenna 532 through the first RFFE 510 and the first switch 512 may be referred to as a 'second antenna transmission path (Ant Tx 2)'. have. A transmission path transmitted from the RFIC 410 to the third antenna 533 through the first RFFE 510, the first switch 512, and the second switch 522 is defined as a 'third antenna transmission path (Ant Tx). 3) can be referred to as '. A transmission path transmitted from the RFIC 410 to the fourth antenna 534 through the first RFFE 510, the first switch 512, and the second switch 522 is defined as a 'fourth antenna transmission path (Ant Tx). 4) can be referred to as '. According to various embodiments, different path loss may occur in the four antenna transmission paths because the length of each transmission path and components disposed on the transmission path are different.

According to various embodiments, each of the antennas (eg, the first antenna 531 , the second antenna 532), the third antenna 533, and the power loss corresponding to the transmission path to the fourth antenna 534) may be referred to as 'antenna path loss', but the antenna path loss For example, power loss corresponding to the first antenna transmission path 541 from the antenna port of the first RFFE 510 to the first antenna 531 is referred to as a 'first antenna path loss'. The power loss corresponding to the second antenna transmission path 542 from the antenna port of the first RFFE 510 to the second antenna 532 may be referred to as a 'second antenna path loss', Loss power corresponding to the third antenna transmission path 543 from the antenna port of the 1 RFFE 510 to the third antenna 533 may be referred to as a 'third antenna path loss', and the first RFFE 510 . Loss of power corresponding to the fourth antenna transmission path 544 from the antenna port of A to the fourth antenna 534 may be referred to as a 'fourth antenna path loss'.

According to various embodiments, the respective antenna path loss (eg, first antenna path loss, second antenna path loss, third antenna path loss, and fourth antenna path loss) may be determined by the component at the time of manufacturing the electronic device 101 . It may be determined according to their configuration or arrangement on a printed circuit board (PCB). Each of the antenna path losses may have the same value for the same frequency. The respective antenna path losses (eg, first antenna path loss, second antenna path loss, third antenna path loss, and fourth antenna path loss) may have different values as described above, and correspond to each frequency. The determined value may be stored in a memory (eg, a memory of the communication processor 260 or a memory of the RFIC 410 ). For example, in the 2.6 GHz band, the first antenna path loss corresponding to the first antenna transmission path 541 is stored as 4.02 dBm, and the second antenna path loss corresponding to the second antenna transmission path 542 is 4.15 dBm. stored, the third antenna path loss corresponding to the third antenna transmission path 543 may be stored as 2.00 dBm, and the fourth antenna path loss corresponding to the fourth antenna transmission path 544 may be stored as 2.02 dBm. .

According to various embodiments, each antenna (eg, the first antenna 531 , the second antenna 532 , the third antenna 533 , and the fourth antenna 534 ) corresponding to each antenna transmission path is connected to the electronic device ( As they are disposed at different positions on the 101 , different antenna losses may occur.

According to various embodiments, in the RFIC 410 , each of the antenna transmission paths (eg, the first antenna transmission path 541 , the second antenna transmission path 542 , the third antenna transmission path 543 , and the fourth antenna transmission path) The first coupler 511 or the second coupler 521 transmits a reference signal at different times through the path 544) and transmits the reference signal from the antenna transmission path corresponding to each antenna when the reference signal is transmitted. It is possible to determine the antenna loss from the power-related information fed back through .

According to various embodiments, the reference signal is a sounding reference signal (SRS) used for multi-antenna signal processing (eg, multi input multi output (MIMO) or beamforming) through uplink channel state measurement. However, the present invention is not limited thereto. For example, in the following description, SRS will be used as an example of a reference signal, but any type of uplink reference signal (eg, uplink demodulation reference signal (DM-RS)) transmitted from the electronic device 101 to the base station may be used. It may be included in a reference signal to be described later.

According to various embodiments, by transmitting a UE Capability Inquiry message to the electronic device 101 in a first communication network (eg, a base station (gNB)) or a second communication network (eg, a base station (eNB)), the electronic device 101 ) of various setting information can be requested. For example, the first communication network (eg, a base station (gNB)) or a second communication network (eg, a base station (eNB)) may request information related to the reception antenna of the electronic device 101 through the UE Capability Inquiry message. have. The electronic device 101 may receive a UE Capability Inquiry message from the first communication network or the second communication network, and may transmit a UE Capability Information message to the first communication network or the second communication network in response thereto. The UE Capability Information message may be configured as follows, and the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t1r4'. .

As the information related to the antenna is described as 'supportedSRS-TxPortSwitch t1r4', the first communication network determines that the electronic device 101 can transmit a signal using 4 reception antennas, and 4 antennas For each antenna, information on a time to transmit a reference signal (eg, SRS) may be included in the RRC Reconfiguration message and transmitted.

10 is a flowchart illustrating a signal transmission/reception procedure between an electronic device and a communication network according to various embodiments of the present disclosure; Referring to FIG. 10 , in operation 1010 , the electronic device 101 may perform initial setup with a first communication network (eg, a base station (gNB)) 1000 through a random access channel (RACH) procedure. .

According to various embodiments, in operation 1020 , the first communication network 1000 may transmit an RRC Reconfiguration message to the electronic device 101 . As described above, the RRC Reconfiguration message may include information on a time point at which the electronic device 101 transmits a reference signal (eg, SRS) for each antenna as follows.

Referring to the RRC Reconfiguration message, it can be seen that as described in "nrofSymbols n1.", the duration of SRS transmission may be determined by an allocated symbol. In addition, referring to the RRC Reconfiguration message, as described in "periodicityAndOffset-p s120: 17", the first SRS is set to be transmitted in the 17th slot while transmitting once every 20 slots, and "periodicityAndOffset-p s120: 7" As described in ", the second SRS is set to transmit in the 7th slot while transmitting once every 20 slots, and as described in "periodicityAndOffset-p s120: 13", the third SRS is transmitted once every 20 slots. It is set to transmit in the 13th slot, and as described in "periodicityAndOffset-p s120: 3", the 4th SRS is set to transmit in the 3rd slot while transmitting once every 20 slots.

According to various embodiments, the electronic device 101 may transmit 4 SRSs at different times through each antenna in every 20 slots according to the RRC Reconfiguration setting. The size of the one slot may be determined by subcarrier spacing (SCS). For example, when the SCS is 30 KHz, the time interval of one slot may be 0.5 ms, and the time interval of 20 slots may be 10 ms. Accordingly, the electronic device 101 may repeatedly transmit the SRS at different times through each antenna every 10 ms period. According to various embodiments, one slot may include 14 symbols, and assuming that one symbol is allocated for one SRS transmission, a symbol duration of 0.5 ms * 1/14 = 35 μs (0.035 ms) time (or symbol enable time).

According to various embodiments, in operation 1030 , the electronic device 101 may transmit an RRC Reconfiguration Complete message to the first communication network 1000 . As the RRC reconfiguration procedure is normally completed, in operation 1040 , the electronic device 101 and the first communication network 1000 may complete RRC connection establishment.

Referring back to FIG. 5 , according to various embodiments, the communication processor 260 and/or the RFIC 410 transmits the reference signal (eg, SRS) received from the first communication network 1000 as described above. Each of the antenna transmission paths (eg, the first antenna transmission path 541 , the second antenna transmission path 542 , the third antenna transmission path 543 , and the fourth antenna transmission path 544 ) based on the information on A reference signal may be transmitted at different times for each set time period (eg, 10 ms) through .

For example, every 10 ms, the first SRS is transmitted through the first antenna 531 in the 17th slot among 20 slots, the second SRS is transmitted through the second antenna 532 in the 7th slot, and the 13th slot may transmit the third SRS through the third antenna 533 and transmit the fourth SRS through the fourth antenna 534 in the third slot.

According to various embodiments, at each SRS transmission time, the first coupler 511 may feed back each SRS transmission signal and transmit it to the RFIC 410 or the communication processor 260 through the third switch 550 . The signal fed back from the first coupler 511 may be referred to as power-related information. According to various embodiments, the power-related information may include reflected power of a reflected signal of a transmission signal transmitted to the at least one antenna or an incident signal of the transmission signal. ) for the incident power.

According to various embodiments, the first coupler 511 or the second coupler 522 may operate in a forward mode or a reverse mode. For example, when the first coupler 511 operates in a forward mode, an incident power of a transmission signal transmitted from the first RFFE 510 to the first antenna 531 for an incident signal (incident power) can be fed back. When the first coupler 511 operates in the reverse mode, the reflected power of the reflected signal of the transmission signal transmitted from the first RFFE 510 to the first antenna 531 is fed back. can do it According to various embodiments, the first coupler 511 or the second coupler 521 may feed back incident power and/or reflected power regardless of a forward mode or a reverse mode.

Hereinafter, a method of determining an antenna loss from power-related information fed back through the first coupler 511 according to various embodiments will be described with reference to FIGS. 6A, 6B and 6C .

6A, 6B, and 6C are circuit diagrams illustrating detailed circuits of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 6A , the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 610 (hereinafter, referred to as CP), an RFIC 620 , a first RFFE 631 , and a second RFFE. 632 , a first coupler 641 , a second coupler 642 , a first switch 651 , a second switch 652 , a third switch 670 , a first antenna 661 , a second antenna ( 662 , a third antenna 663 , and a fourth antenna 664 may be included. According to various embodiments, the CP 610 may include a power control module 611 , a transmission path setting module 613 , and a digital processing module 612 . The RFIC 620 may include a mixer 621 , an amplifier 622 , a transmission path control module 624 , and a feedback signal processing module 623 .

According to various embodiments, the CP 610 generates a signal to be transmitted and transmits it to the RFIC 620 , and the RFIC 620 transmits the signal received from the CP 610 through the mixer 621 at the desired frequency. It can be converted into a signal of a band. The power control module 611 of the CP 610 controls the RFIC 620 based on the transmission target power (hereinafter referred to as 'target power') of the transmission signal to be transmitted, based on the amplifier ( 622) can be adjusted. For example, the frequency-converted signal through the mixer 621 may be amplified through the amplifier 622 to a power level set under the control of the power control module 611 , and then transmitted to the first RFFE 631 . . A power amplifier (PA) included in the first RFFE 631 amplifies the signal to be transmitted according to a set power level and passes through a first coupler 641 to a first switch 651 or a second switch 652 . through the antenna (eg, the first antenna 661 , the second antenna 662 , the third antenna 663 , and the fourth antenna 664 ). According to various embodiments, the CP 610 or the RFIC 620 controls the first switch 651 or the second switch 652 so that the signal transmitted from the first RFFE 631 is transmitted to the first The output may be controlled to be output to any one of the antenna 661 , the second antenna 662 , the third antenna 663 , and the fourth antenna 664 .

According to various embodiments, in the CP 610 and/or the RFIC 620 , as described above, each A time period set through an antenna transmission path (eg, the first antenna transmission path 541 , the second antenna transmission path 542 , the third antenna transmission path 543 , and the fourth antenna transmission path 544 of FIG. 5 ) A reference signal may be transmitted at different times every (eg, 10 ms). Hereinafter, the reference signal will be described using SRS as an example.

According to various embodiments, at the time of transmission of each SRS, the first coupler 641 may feed back each SRS transmission signal and transmit it to the feedback signal processing module 623 of the RFIC 620 through the third switch 670 . . According to various embodiments, the signal fed back through the coupler 641 may be input to a feedback port (FBRX) or a power determination port (PDET (power determination) port) of the RFIC 620 . According to various embodiments, the fed back signal may be referred to as power related information. According to various embodiments, the power-related information may include reflected power of a reflected signal of a transmission signal transmitted to the at least one antenna or an incident signal of the transmission signal. ) for the incident power.

According to various embodiments, the first coupler 641 or the second coupler 642 may operate in a forward mode or a reverse mode. For example, when the first coupler 641 operates in a forward mode, each antenna (eg, a first antenna 661 , a second antenna 662 , a third antenna 663 , Incident power for an incident signal of a transmission signal transmitted to the fourth antenna 664 may be fed back. When the first coupler 641 operates in the reverse mode, each antenna (eg, a first antenna 661 , a second antenna 662 , a third antenna 663 , and a fourth antenna in the first RFFE 510 ) A reflected power for a reflected signal of a transmission signal transmitted to the antenna 664 may be fed back. According to various embodiments, the first coupler 641 or the second coupler 642 may feed back incident power and/or reflected power regardless of a forward mode or a reverse mode.

According to various embodiments, the feedback signal processing module 623 of the RFIC 620 is a signal having a relatively small size compared to a signal transmitted to each antenna through the coupler 641. A signal (eg, power-related information) fed back from the first coupler 641 may be received and amplified. The RFIC 620 may transmit a signal amplified through the feedback signal processing module 623 to the CP 610 .

According to various embodiments, the digital signal processing module 612 of the CP 610 digitally processes the signal (eg, power-related information) received from the RFIC 620 and transmits it to the transmission path setting module 613 . can

According to various embodiments, the transmission path setting module 613 configures each antenna transmission path (eg, the first antenna transmission path 541, the second antenna transmission path 542, and the third antenna transmission path 543 of FIG. 5 ). , based on the received power-related information and the maximum transmit power (max transmit power) by feeding back the SRS signal transmitted through the fourth antenna transmission path 544) according to various methods described later in FIGS. An antenna Tx path of a transmission signal to be transmitted to the first communication network or the second communication network may be set.

According to various embodiments, the maximum transmit power is the respective antenna transmission path (eg, the first antenna transmission path 541 and the second antenna transmission path 542 of FIG. 5 ) of the electronic device 100 . , the third antenna transmission path 543 and the fourth antenna transmission path 544) may mean the maximum transmittable power. According to various embodiments, the maximum transmittable power is the maximum transmittable power (P_MAX) received from each communication network (eg, a base station), and the maximum transmitable power (UE) for each antenna transmission path set by the electronic device 100 . MAX power) and SAR backoff may be set in consideration of the SAR event maximum transmittable power (SAR EVENT MAX Power) set in response to each SAR event. For example, the maximum transmittable power may be determined as a minimum value among the plurality of maximum transmitable powers illustrated above, but is not limited thereto. According to various embodiments, the maximum transmittable power of the SAR event may be set differently according to each SAR event.

According to various embodiments, the maximum transmittable power (UE MAX power) for each antenna transmission path set by the electronic device 100 is predefined as shown in <Table 4>, <Table 5>, and <Table 6> below. It may be set in consideration of maximum power reduction (MPR) or additional maximum power reduction (A-MPR).

ModulationModulation	MPR(dB)MPR (dB)
ModulationModulation	Outer RB allocationsOuter RB allocations	Inner RB allocationsInner RB allocations
DFT-s-OFDM PI/2 BPSKDFT-s-OFDM PI/2 BPSK	≤0.5≤0.5	00
DFT-s-OFDM QPSKDFT-s-OFDM QPSK	≤1≤1	00
DFT-s-OFDM 16 QAMDFT-s-OFDM 16 QAM	≤2≤2	≤1≤1
DFT-s-OFDM 64 QAMDFT-s-OFDM 64 QAM	≤2.5≤2.5
DFT-s-OFDM 256 QAMDFT-s-OFDM 256 QAM	≤4.5≤4.5
CP-OFDM QPSKCP-OFDM QPSK	≤3≤3	≤1.5≤1.5
CP-OFDM 16 QAMCP-OFDM 16 QAM	≤3≤3	≤2≤2
CP-OFDM 64 QAMCP-OFDM 64 QAM	≤3.5≤3.5
CP-OFDM 256 QAMCP-OFDM 256 QAM	≤6.5≤6.5

ModulationModulation	MPR(dB)MPR (dB)
ModulationModulation	Edge RB allocationsEdge RB allocations	Outer RB allocationsOuter RB allocations	Inner RB allocationsInner RB allocations
DFT-s-OFDM PI/2 BPSKDFT-s-OFDM PI/2 BPSK	≤3.5≤3.5	≤0.5≤0.5	00
DFT-s-OFDM QPSKDFT-s-OFDM QPSK	≤3.5≤3.5	≤1≤1	00
DFT-s-OFDM 16 QAMDFT-s-OFDM 16 QAM	≤3.5≤3.5	≤2≤2	≤1≤1
DFT-s-OFDM 64 QAMDFT-s-OFDM 64 QAM	≤3.5≤3.5	≤2.5≤2.5
DFT-s-OFDM 256 QAMDFT-s-OFDM 256 QAM	≤4.5≤4.5
CP-OFDM QPSKCP-OFDM QPSK	≤3.5≤3.5	≤3≤3	≤1.5≤1.5
CP-OFDM 16 QAMCP-OFDM 16 QAM	≤3.5≤3.5	≤3≤3	≤2≤2
CP-OFDM 64 QAMCP-OFDM 64 QAM	≤3.5≤3.5
CP-OFDM 256 QAMCP-OFDM 256 QAM	≤6.5≤6.5

Network Signallling valueNetwork Signaling value	RequirementsRequirements	NR BandNR Band	Channel bandwidth (MHz)Channel bandwidth (MHz)	Resources Blocks (N_RB)Resources Blocks (N _RB )	A-MPR (dB)A-MPR (dB)	Value of additional Spectrum EmissionValue of additional Spectrum Emission
NS_01NS_01						1One
NS_02NS_02	6.5.2.1.26.5.2.1.2	n1, n2, n3, n4, n8, n20, n25, n66, n80, n81, n82, n84n1, n2, n3, n4, n8, n20, n25, n66, n80, n81, n82, n84			Table 6.2.3-2Table 6.2.3-2	1One
NS_03NS_03	6.5.2.3.36.5.2.3.3	n2, n25, n66, n70n2, n25, n66, n70			Table 6.2.3.7-1Table 6.2.3.7-1	33
NS_04NS_04	6.5.2.3.16.5.2.3.1	n41 n41	10, 15, 20, 40, 50, 60, 80, 10010, 15, 20, 40, 50, 60, 80, 100		Subcaluse 6.2.3.2Subcaluse 6.2.3.2	44
NS_06NS_06	6.5.2.3.36.5.2.3.3	n12n12	5, 10, 155, 10, 15	5.3.55.3.5	N/AN/A	22
NS_10NS_10		n20, n82n20, n82	15, 2015, 20	Table 6.2.3.3-1Table 6.2.3.3-1	Table 6.2.3.3-1Table 6.2.3.3-1	NS_xxNS_xx
NS_07NS_07	6.5.3.3.26.5.3.3.2	n28, n83n28, n83	5, 105, 10	Table 5.3.3-1Table 5.3.3-1
NS_05NS_05	6.5.3.3.36.5.3.3.3	n28, n83n28, n83	55	≥2≥2	≤2≤2
NS_05NS_05	6.5.3.3.36.5.3.3.3	n28, n83n28, n83	10, 15, 2010, 15, 20	≥1≥1	≤5≤5
NS_08NS_08	6.5.3.3.46.5.3.3.4	n1, n84n1, n84	5, 10, 15, 205, 10, 15, 20		Subclause 6.2.3.4-Subclause 6.2.3.4-
NS_35NS_35	6.5.2.3.16.5.2.3.1	n71n71	5, 10, 15, 205, 10, 15, 20	Table 5.3.2-1Table 5.3.2-1	N/AN/A	22
NS_40NS_40	6.5.2.3.76.5.2.3.7	n51n51	55		Table 6.2.3.5-Table 6.2.3.5-	3535
NS_09NS_09	6.5.3.3.56.5.3.3.5	n8, n81n8, n81	5, 10, 155, 10, 15		Subclause 6.2.3.6Subclause 6.2.3.6

Referring to <Table 4> and <Table 5>, the maximum transmit power of each antenna transmission path may be set differently according to a difference in path loss. <Table 4> and <Table 5> show the MPR defined for the NR band signal. <Table 4> shows the MPR for power class (PC) 3, and <Table 5> shows the MPR for power class 2. According to various embodiments, the MPR backoff may vary according to a modulation type or bandwidth (BW) even in a co-channel environment. According to various embodiments, the transmission path setting module 613 may determine an antenna loss based on the received power-related information by feeding back the SRS signal. According to various embodiments, the antenna loss is the reflected power of the SRS transmitted to each antenna, the ratio of the reflected power to the incident power of the SRS transmitted to each antenna, and the transmitted to each antenna. The SRS may be determined based on at least one of a voltage standing wave ratio (VSWR), a return loss (RL), and a reflection coefficient (gamma).

According to various embodiments, the antenna loss may vary according to a channel environment, and may be determined differently at every SRS transmission time. For example, when the antenna loss is set as a ratio of reflected power to incident power, the antenna loss may be determined from power-related information fed back through each antenna as shown in Tables 7 and 8 below.

TimeTime	Incident RealIncident Real	Incident ImaginaryIncident Imaginary	Reflected RealReflected Real	Reflected ImaginaryReflected Imaginary	Tx Power (dBm)Tx Power (dBm)	Reflected Power/ Forward PowerReflected Power/ Forward Power
03:34.803:34.8	-560-560	-1194-1194	106106	125125	21.521.5	0.1246531980.124653198
03:34.803:34.8	-566-566	-1205-1205	108108	126126	2.152.15	0.1246618830.124661883
03:34.903:34.9	561561	11891189	-106-106	-125-125	21.521.5	0.1245711060.124571106
03:34.903:34.9	-559-559	-1191-1191	106106	125125	21.521.5	0.1244452840.124445284
03:35.003:35.0	-560-560	-1192-1192	106106	125125	21.521.5	0.1250285770.125028577
03:35.003:35.0	562562	11901190	-107-107	-125-125	21.521.5	0.1251096530.125109653

TimeTime	Incident RealIncident Real	Incident ImaginaryIncident Imaginary	Reflected RealReflected Real	Reflected ImaginaryReflected Imaginary	Tx Power (dBm)Tx Power (dBm)	Reflected Power/ Forward PowerReflected Power/ Forward Power
21:56.421:56.4	647647	11481148	452452	-33-33	21.521.5	0.3439027580.343902758
21:56.421:56.4	648648	11481148	452452	-35-35	2.152.15	0.343117320.34311732
21:56.521:56.5	646646	11491149	451451	-34-34	21.521.5	0.3444611520.344461152
21:56.521:56.5	650650	11481148	453453	-36-36	21.521.5	0.344258530.34425853
21:56.621:56.6	647647	11471147	452452	-35-35	21.521.5	0.3442588710.344258871
21:56.621:56.6	-654-654	-1163-163	-458-458	3535	21.521.5	0.3433289670.343328967

In <Table 7> and <Table 8>, the incident real value and the incident imaginary value for the incident signal indicate how much the power of the transmitted signal is actually radiated through the antenna. It may mean a value by which it can be determined whether or not In the <Table 7> and <Table 8>, the reflected real value and the imaginary value for the reflected signal actually determine how much the power of the transmitted signal is reflected (reflected) It can mean possible values. The reflected power/forward power ratio of the reflected power to the incident power is actually a value representing the ratio of the power radiated to the reflected power from each antenna of the electronic device 101. According to various embodiments, An antenna to transmit a transmission signal may be determined based on the ratio of the reflected power to the incident power. According to various embodiments, the transmission power (Tx Power) is the TPC (Tx Power) of the electronic device 101 of a communication network (eg, a base station). It may mean a target power to be output according to transmit power control), and may actually be a reference power for a radiation power expected to be output from each antenna of the electronic device 101 . According to various embodiments, information related to the transmission power (eg, target power) may be transmitted from a communication network (eg, a base station) to each electronic device 101 .

According to various embodiments, <Table 7> may represent values measured in an environment having a relatively good channel condition, and <Table 8> may represent values measured in an environment having a relatively poor channel condition. As in the examples in <Table 7> and <Table 8>, the CP 610 or RFIC 620 transmits a transmission signal transmitted to the at least one antenna from the power related information fed back from the first coupler 641 ( It is possible to check a real value and an imaginary value for a reflected signal of the transmission signal, and an incident real value for an incident signal of the transmission signal. ) and imaginary values.

The CP 610 or RFIC 620 calculates reflected power versus incident power from real and imaginary values for the reflected signal and real and imaginary values for the incident signal. It is possible to determine the ratio (reflected power / forward power ratio) of. According to various embodiments, the ratio of the reflected power to the incident power may be defined as an antenna loss. According to various embodiments, the ratio of the reflected power to the incident power may be compared with a preset reference value (eg, 0.3) to determine whether the channel state of the corresponding antenna is relatively good or bad. For example, when the ratio of the reflected power to the incident power is less than 0.3 (for example, if it corresponds to <Table 7>), the channel state for the corresponding antenna may be determined as a relatively good channel state, and the reflected power to the incident power When the ratio of is greater than 0.3 (eg, corresponding to <Table 8>), the channel state of the corresponding antenna may be determined as a relatively bad channel state.

According to various embodiments, the transmission path setting module 613 configures each antenna transmission path (eg, the first antenna transmission path 541 of FIG. 5 , the second antenna transmission path 542 , and the third antenna transmission path 543 of FIG. 5 ). . An antenna transmission path (antenna Tx path) of a transmission signal to be transmitted may be set. According to various embodiments, the transmission path control module 624 is configured to control an antenna transmission path of a transmission signal transmitted through the first RFFE 631 among a plurality of antenna transmission paths under the control of the transmission path setting module 613 . can be controlled to be transmitted through a specific antenna transmission path. For example, the transmission path control module 624 may control the antenna transmission path of the transmission signal by controlling the first switch 651 and/or the second switch 652 .

According to various embodiments, when the transmission target power of a transmission signal to be transmitted to the first communication network or to the second communication network is greater than (or greater than or equal to) a set transmission power threshold, the transmission path setting module 613 is An antenna transmission path of a transmission signal may be set according to a high power mode. According to various embodiments, when the transmission target power of a transmission signal to be transmitted to the first communication network or to the second communication network is smaller than a set transmission power threshold, the transmission path setting module 613 is configured to perform a low power mode. Accordingly, the antenna transmission path of the transmission signal may be set.

According to various embodiments, the transmission path setting module 613 may set the antenna transmission path of the transmission signal in consideration of the maximum transmittable power and antenna loss in the high power mode. For example, the transmission path setting module 613 checks or estimates the difference between the maximum transmittable power and the antenna loss for each antenna transmission path (maximum transmitable power-antenna loss) as the expected maximum power actually radiated from each antenna, An antenna transmission path having the greatest expected maximum power for each confirmed or estimated antenna transmission path may be determined or set as an antenna transmission path through which a transmission signal is transmitted.

According to various embodiments, the transmission path setting module 613 may set the antenna transmission path of the transmission signal in consideration of the transmission target power, the antenna loss, and the antenna path loss in the low power mode. For example, the transmission path setting module 613 is configured by subtracting the sum of the antenna loss and the antenna path loss from the transmission target power for each antenna transmission path (transmit target power - (antenna loss + antenna path) loss)) and determine or set an antenna transmission path having the largest checked value as an antenna transmission path through which a transmission signal is to be transmitted.

For example, the above-described high power mode may operate in the following ways according to the determination of the maximum transmittable power of each antenna.

According to various embodiments, when the maximum transmittable power is the maximum transmitable power (UE MAX power) for each antenna transmission path set by the electronic device 100, the maximum transmitable power for each antenna transmission path (UE MAX POWER) An expected maximum power may be checked by calculating a difference between the Δ and the antenna loss, and a transmission signal may be transmitted through an antenna transmission path having the largest value of the expected maximum power. For example, referring to Table 9 below, the maximum transmittable power may be set differently for each antenna transmission path.

SIG PathSIG Path	AntennaAntenna	BANDBAND	단말 송신 가능 최대 전력 NV 설정Terminal transmission possible maximum power NV settings	비고note
상단 ANT PathTop ANT Path	1One	4141	23dBm23dBm	상단 Path 는 Path Loss 로 인해 최대 송신 가능 전력이 낮음The upper path is due to Path Loss Low maximum transmit power
하단 ANT Path Bottom ANT Path	22	4141	25dBm25dBm	하단 Path 는 상단 Path 대비 Path Loss 적어서 최대 송신 가능 전력 상향 설정 가능The lower path has less Path Loss compared to the upper path. Maximum transmit power can be set upwards

Referring to <Table 9>, it can be assumed that the maximum transmittable power of Tx ant1 is set to 23 dBm and the antenna loss is measured to be 1 dB. In addition, it may be assumed that the maximum transmittable power of Tx ant2 is set to 25 dBm and the antenna loss is measured to be 2 dB. When 1 dB of antenna loss is reflected in the maximum transmittable power of Tx ant1 of 23 dBm, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path may be estimated to be 22 dBm. In addition, when an antenna loss of 2 dB is reflected in the maximum transmittable power of 25 dBm of the Tx ant2, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path may be estimated to be 23 dBm. Therefore, although the antenna loss of Tx ant2 is greater than the antenna loss of Tx ant1, the actual expected maximum radiation power (expected maximum power) is estimated to be a larger value than Tx ant2, so the antenna transmission path of Tx ant2 is used for the transmission signal. It can be determined or set as an antenna transmission path.

According to various embodiments, when the MPR backoff is further considered in the maximum transmittable power (UE MAX power) for each antenna transmission path set by the electronic device 100 as the maximum transmitable power, the MPR for each antenna transmission path By calculating the difference between the considered maximum transmittable power (UE MAX POWER) and the antenna loss, the expected maximum power may be checked, and the transmit signal may be transmitted through the antenna transmission path having the largest value of the expected maximum power. For example, referring to <Table 10> below, the MPR backoff may be set differently for each antenna transmission path in which the same maximum transmittable power of 23 dBm is set under the Inter RB allocation condition and the CP OFDM operation condition.

SIG PathSIG Path	AntennaAntenna	BANDBAND	최대전력NVMaximum powerNV	QPSKQPSK	16QAM16QAM	64QAM64QAM
상단 ANT PathTop ANT Path	1One	4141	23dBm23dBm	23dBm23dBm	22.5dBm22.5dBm	21dBm21dBm
하단 ANT Path Bottom ANT Path	22	4141	23dBm23dBm	21.5dBm21.5dBm	21dBm21dBm	19.5dBm19.5dBm

Referring to <Table 10>, it can be assumed that the maximum transmittable power considering MPR in 64QAM is set to 21 dBm, and antenna loss is measured to be 1 dB. In addition, it may be assumed that Tx ant2 is set to 19.5 dBm of maximum transmittable power considering MPR in 64QAM, and antenna loss is measured to be 1 dB. When an antenna loss of 1 dB is reflected in the maximum transmittable power of 21 dBm considering the MPR of the Tx ant1, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path may be estimated to be 20 dBm. In addition, if 1 dB of antenna loss is reflected in the maximum transmittable power of 19.5 dBm considering the MPR of the Tx ant2, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path can be estimated to be 18.5 dBm. have. Even if the Tx ant1 and Tx ant2 have the same maximum transmittable power and antenna loss, an antenna transmission path configured to apply a relatively smaller MPR backoff in consideration of MPR may be determined or set as an antenna transmission path for transmitting a transmission signal. have.

According to various embodiments, when the maximum transmittable power is the SAR event maximum transmit power set in consideration of the SAR backoff, the maximum transmitable power of the SAR event in consideration of the SAR backoff for each antenna transmission path (SAR EVENT MAX POWER) ) and the antenna loss to check the expected maximum power, and transmit the transmission signal through the antenna transmission path having the largest value of the expected maximum power. For example, referring to Table 11 below, the maximum transmittable power may be set differently for each antenna transmission path.

SIG PathSIG Path	AntennaAntenna	BANDBAND	근접 Sensor event시 최대 전력 NV 설정Proximity sensor event Set maximum power NV
상단 ANT PathTop ANT Path	1One	4141	21dBm21dBm
하단 ANT Path Bottom ANT Path	22	4141	23dBm23dBm

Referring to <Table 11>, it can be assumed that the maximum transmittable power of Tx ant1 is set to 21 dBm by detecting the SAR backoff event by the proximity sensor, and the antenna loss is measured to be 1 dB. In addition, it can be assumed that the maximum transmittable power of Tx ant2 is set to 23 dBm because no SAR backoff event is detected, and the antenna loss is measured to be 2 dB. When 1 dB of antenna loss is reflected in the maximum transmittable power of 21 dBm of Tx ant1 where the SAR backoff event has occurred, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path can be estimated to be 20 dBm. have. In addition, when an antenna loss of 2dB is reflected in the maximum transmittable power of the Tx ant2 of 23dBm, the actual expected maximum power (or the actual expected maximum radiation power) in the corresponding antenna transmission path may be estimated to be 21dBm. Therefore, although the antenna loss of Tx ant2 is greater than the antenna loss of Tx ant1, the actual expected maximum radiated power (expected maximum power) is estimated as Tx ant2 is larger than that of Tx ant1 in which the SAR backoff occurs, so that the Tx ant2 By determining or setting the antenna transmission path of , as the antenna transmission path of the transmission signal, it is possible to prevent a change in the antenna transmission path setting to the antenna transmission path in which the SAR backoff has occurred.

Various embodiments of setting a specific antenna transmission path among the plurality of antenna transmission paths will be described later in detail with reference to FIGS. 11 to 16 .

Referring to FIG. 6B , the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 610 (hereinafter, referred to as CP), an RFIC 620 , a first RFFE 631 , and a second RFFE. 632 , a first coupler 641 , a second coupler 642 , a first switch 651 , a second switch 652 , a third switch 670 , a first antenna 661 , a second antenna ( 662 , a third antenna 663 , and a fourth antenna 664 may be included. According to various embodiments, the CP 610 may include a power control module 611 , a transmission path setting module 613 , a digital processing module 612 , and a feedback signal processing module 614 . The RFIC 620 may include a mixer 621 , an amplifier 622 , and a transmission path control module 624 .

According to various embodiments, the CP 610 generates a signal to be transmitted and transmits it to the RFIC 620 , and the RFIC 620 transmits the signal received from the CP 610 through the mixer 621 at the desired frequency. It can be converted into a signal of a band. The power control module 611 of the CP 610 may control the RFIC 620 to adjust a power level of the amplifier 622 based on a target power of a transmission signal to be transmitted. For example, the frequency-converted signal through the mixer 621 may be amplified through the amplifier 622 to a power level set under the control of the power control module 611 , and then transmitted to the first RFFE 631 . . A power amplifier (PA) included in the first RFFE 631 amplifies the signal to be transmitted according to a set power level and passes through a first coupler 641 to a first switch 651 or a second switch 652 . through the antenna (eg, the first antenna 661 , the second antenna 662 , the third antenna 663 , and the fourth antenna 664 ). According to various embodiments, the CP 610 or the RFIC 620 controls the first switch 651 or the second switch 652 so that the signal transmitted from the first RFFE 631 is transmitted to the first The output may be controlled to be output to any one of the antenna 661 , the second antenna 662 , the third antenna 663 , and the fourth antenna 664 .

According to various embodiments, at the time of transmission of each SRS, the first coupler 641 may feed back each SRS transmission signal and transmit it to the feedback signal processing module 614 of the CP 610 through the third switch 670 . . Hereinafter, an example of receiving and processing a feedback signal from the CP 610 will be described. However, the processor 120 may receive and process the feedback signal according to various embodiments. When receiving and processing a feedback signal from the processor 120 , the processor 120 includes a power control module 611 , a digital signal processing module 612 , and a feedback signal processing module 614 included in the CP 610 . ) may include at least one of.

According to various embodiments, the electronic device 101 may transmit a signal fed back through the first coupler 641 to the CP 610 . According to various embodiments, the signal fed back through the first coupler 641 may be input to a feedback port (FBRX) or a power determination port (PDET (power determination) port) of the CP 610 . According to various embodiments, the fed back signal may be referred to as power related information. According to various embodiments, the power-related information may include reflected power of a reflected signal of a transmission signal transmitted to the at least one antenna or an incident signal of the transmission signal. ) for the incident power.

According to various embodiments, the feedback signal processing module 614 of the CP 610 is a signal having a relatively small size compared to the signal transmitted to each antenna through the coupler 641. A signal (eg, power-related information) fed back from the first coupler 641 may be received and amplified. The CP 610 may transmit a signal amplified through the feedback signal processing module 623 to the digital signal processing module 612 . The digital signal processing module 612 may digitally process the signal (eg, power related information) received from the feedback signal processing module 623 and transmit it to the transmission path setting module 613 . The transmission path setting module 613 configures each antenna transmission path (eg, the first antenna transmission path 541 of FIG. 5 , the second antenna transmission path 542 , the third antenna transmission path 543 , and the fourth antenna transmission path). 544) to the first communication network or to the second communication network according to various methods described later in FIGS. 11 to 16 based on the received power-related information and the maximum transmittable power by feeding back the SRS signal transmitted through An antenna Tx path of a transmission signal may be set.

According to various embodiments, the transmission path setting module 613 may determine an antenna loss based on the received power-related information by feeding back the SRS signal. According to various embodiments, the antenna loss is the reflected power of the SRS transmitted to each antenna, the ratio of the reflected power to the incident power of the SRS transmitted to each antenna, and the transmitted to each antenna. The SRS may be determined based on at least one of a voltage standing wave ratio (VSWR), a return loss (RL), and a reflection coefficient (gamma).

According to various embodiments, the transmission path setting module 613 configures each antenna transmission path (eg, the first antenna transmission path 541 of FIG. 5 , the second antenna transmission path 542 , and the third antenna transmission path 543 of FIG. 5 ). ), the fourth antenna transmission path 544) to the first communication network or to the second communication network based on at least one of the above-described maximum transmittable power, a transmit target power, the determined antenna loss, or an antenna path loss. An antenna Tx path of a transmission signal to be transmitted may be set. According to various embodiments, the transmission path control module 624 is configured to control an antenna transmission path of a transmission signal transmitted through the first RFFE 631 among a plurality of antenna transmission paths under the control of the transmission path setting module 613 . can be controlled to be transmitted through a specific antenna transmission path. For example, the transmission path control module 624 may control the antenna transmission path of the transmission signal by controlling the first switch 651 and/or the second switch 652 . Various embodiments of setting a specific antenna transmission path among a plurality of antenna transmission paths will be described later in detail with reference to FIGS. 11 to 16 .

Referring to FIG. 6C , the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 610 (hereinafter, referred to as CP), an RFIC 620 , a first RFFE 631 , and a second RFFE. 632 , a first coupler 641 , a second coupler 642 , a first switch 651 , a second switch 652 , a third switch 670 , a first antenna 661 , a second antenna ( 662 , a third antenna 663 , and a fourth antenna 664 may be included. According to various embodiments, the CP 610 may include a power control module 611 and a transmission path setting module 613 . The RFIC 620 may include a mixer 621 , an amplifier 622 , a feedback signal processing module 623 , a transmission path control module 624 , and a digital signal processing module 625 .

According to various embodiments, the feedback signal processing module 623 of the RFIC 620 is a signal having a relatively small size compared to a signal transmitted to each antenna through the coupler 641. A signal (eg, power-related information) fed back from the first coupler 641 may be received and amplified. The RFIC 620 may transmit a signal amplified through the feedback signal processing module 623 to the digital signal processing module 625 .

According to various embodiments, the digital signal processing module 625 digitally processes the signal (eg, power-related information) received from the feedback signal processing module 623 to thereby set the transmission path setting module 613 of the CP 610 . ) can be transmitted. The transmission path setting module 613 configures each antenna transmission path (eg, the first antenna transmission path 541 of FIG. 5 , the second antenna transmission path 542 , the third antenna transmission path 543 , and the fourth antenna transmission path). Based on the received power-related information and the maximum transmittable power by feeding back the incident signal and/or the reflected signal of the SRS signal transmitted through 544 ), the first communication network according to various methods described later in FIGS. 11 to 16 . An antenna transmission path (antenna Tx path) of a transmission signal to be transmitted to the first or second communication network may be set.

7 is a block diagram of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 7 , a plurality of

RFFEs

711 , 712 , 713 , 721 , 722 , 723 , 731 , 732 , 733 , and 740 may be connected to at least one RFIC 410 . A plurality of RFFEs (711, 712, 713, 721, 722, 723, 731, 732, 733, 740) is a plurality of antennas (751, 752, 761, 762, 771, 772, 773, 781, 791, respectively) 792) can be connected.

According to various embodiments, the 1-1 RFFE 711 and the 2-1 RFFE 721 may be connected to a first main antenna 751 and a second main antenna 761 , respectively. The 1-2 RFFE 712 and the 1-3 RFFE 713 may be connected to a first sub antenna 752 to provide diversity with the first main antenna 751 . The 2-2 RFFE 722 and the 2-3 RFFE 723 may be connected to a second sub antenna 762 to provide diversity with the second main antenna 761 . The 3-1 RFFE 731 may be connected to the two third

main antennas

771 and 772 to provide MIMO. In addition, the 3-2 RFFE 732 and the 3-3 RFFE 733 are connected to a third sub antenna 773 through a duplexer and MIMO with the third

main antennas

771 and 772 . Alternatively, diversity may be provided. The fifth antenna 781 may be directly connected to the RFIC 410 without going through the RFFE. The 6-1 th antenna 791 and the 6-2 th antenna 792 may also be directly connected from the RFIC 410 without going through the RFFE, and MIMO or diversity may be provided through two antennas. The fourth RFFE 740 may be connected to two WIFI antennas.

According to various embodiments, at least one of the RFFEs of FIG. 7 is one of the first RFFE 431 , the second RFFE 432 , and the third RFFE 433 described above in FIGS. 4A , 4B , 4C and 4D . You can respond to either one. At least one of the antennas of FIG. 7 may include the first antenna 441, the second antenna 442, the third antenna 443, and the fourth antenna 444 described above in FIGS. 4A, 4B, 4C, and 4D. , may correspond to any one of the fifth antenna 445 .

8 is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 8 , the electronic device 101 includes an RFIC 410 , a first RFFE 811 , a first filter 812 , a first switch 813 (eg, SP3T or SP4T), and a second RFFE 821 . ), second switch 822 (eg, SPDT), third switch 823 , first antenna 831 , second antenna 832 , third antenna 833 , fourth antenna 834 , die A diplexer 840 may be included.

According to various embodiments, the RFIC 410, when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network. can be converted to For example, the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 831 or the second antenna 832 through the first RFFE 811 and the first switch 813 . . In addition, the RFIC 410 transmits the RF signal used for the first communication network to the third antenna through the first RFFE 811 , the first switch 813 , the second switch 822 , and the third switch 823 . 833 or the fourth antenna 834 . According to various embodiments, the communication processor 260 and/or the RFIC 410 controls the first RFFE 811 , the first switch 813 , the second switch 822 and the third switch 823 , A signal to be transmitted to the first communication network may be transmitted through the first antenna 831 , the second antenna 832 , the third antenna 833 , or the fourth antenna 834 .

According to various embodiments, a first filter 812 may be added between the first RFFE 811 and the first switch 813 , and the first filter 812 transmits an NR band transmission signal to a WIFI band. It may be a notch filter to prevent it from affecting the signal (eg, 2.4 GHz). A duplexer 840 may be added between the third switch 823 and the fourth antenna 834 , and the diplexer 840 may process Mid/High band/Ultra High band signals.

According to various embodiments, a transmission path transmitted from the RFIC 410 to the first antenna 831 through the first RFFE 811 and the first switch 813 is defined as a 'first antenna transmission path (Ant Tx 1 ). ) can be referred to as '. A transmission path transmitted from the RFIC 410 to the second antenna 832 through the first RFFE 811 and the first switch 813 may be referred to as a 'second antenna transmission path (Ant Tx 2)'. have. A transmission path transmitted from the RFIC 410 to the third antenna 833 through the first RFFE 811 , the first switch 813 , the second switch 822 , and the third switch 823 ' It may be referred to as a 3 antenna transmission path (Ant Tx 3)'. from the RFIC 410 to the fourth antenna 834 through the first RFFE 811 , the first switch 813 , the second switch 822 , the third switch 823 , and the diplexer 840 . The transmitted transmission path may be referred to as a 'fourth antenna transmission path (Ant Tx 4)'. According to various embodiments, as described above, different path loss may occur in the four antenna transmission paths because the length of each transmission path and components disposed on the transmission path are different.

According to various embodiments, each of the antennas (eg, the first antenna 831 , the second antenna 832), the third antenna 833, and the power loss corresponding to the transmission paths to the fourth antenna 834) may be referred to as 'antenna path loss', but the antenna path loss It is not limited to the path.

According to various embodiments, since the operation of the circuit illustrated in FIG. 8 is similar to that of FIG. 5 , a detailed description thereof will be omitted.

9 is a block diagram illustrating a structure of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 9 , according to various embodiments, the first antenna 831 and the second antenna 832 described with reference to FIG. 8 may be disposed on top of the electronic device 900 . The third antenna 833 and the fourth antenna 834 described with reference to FIG. 8 may be disposed at the lower end of the electronic device 900 .

According to various embodiments, when the direction of the electronic device 900 is changed or the user holds the electronic device 900 by hand, an antenna (eg, the first antenna 831 ) disposed on the top of the electronic device 900 . ) or the second antenna 832) and the lower antenna (eg, the third antenna 833 or the fourth antenna 834) may exhibit different antenna losses, respectively.

According to various embodiments, as described above, the antenna loss may be determined based on power-related information fed back from a reference signal (eg, SRS) transmitted through each antenna, and based on at least the antenna loss, the plurality of It is possible to determine an antenna transmission path through which a transmission signal is to be transmitted among the antenna transmission paths of .

The electronic device according to any one of various embodiments includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and the at least one RFIC and at least one radio frequency integrated circuit (RFFE), respectively. a plurality of antennas connected through a front-end circuit to transmit a signal corresponding to at least one communication network, wherein the communication processor receives a plurality of reference signals referenced for channel estimation in the base station Control to transmit at different times through each of the plurality of antennas, check power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas during transmission of the reference signal, and transmit each antenna At least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas may be set based on the maximum transmittable power for the path and the checked power-related information.

According to various embodiments, the reference signal may include a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.

According to various embodiments, the power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, the communication processor checks an antenna loss from the checked power-related information, and provides a plurality of antenna transmission paths corresponding to the plurality of antennas based on the checked antenna loss. At least one antenna transmission path through which a transmission signal is to be transmitted may be set.

According to various embodiments, the antenna loss may include the reflected power of the transmitted signal, a ratio of the reflected power to the incident power of the transmitted signal, and a voltage standing wave ratio (VSWR) of the transmitted signal. , a return loss (RL), and a reflection coefficient (gamma) may be determined based on at least one of.

According to various embodiments, the communication processor compares a transmission target power of the transmission signal with a set transmission power threshold, and when the transmission target power of the transmission signal is less than the set transmission power threshold, , may set at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas by further considering an antenna path loss corresponding to each antenna.

According to various embodiments, the antenna path loss may be power loss corresponding to a transmission path from an antenna port of the at least one RFFE circuit to each antenna.

According to various embodiments, the communication processor checks whether a specific absorption rate (SAR) backoff event has occurred, and when it is determined that the SAR backoff event has occurred, power corresponding to the SAR backoff event In further consideration, at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas may be set.

The electronic device according to any one of various embodiments may include a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and a first communication network connected to the at least one RFIC. a first radio frequency front-end (RFFE) circuit configured to process a signal, a second RFFE circuit coupled to the at least one RFIC and configured to process a signal corresponding to a second communication network, and each of the at least one RFIC; a plurality of antennas connected through at least one RFFE circuit to transmit a signal corresponding to at least one communication network, wherein the communication processor receives a plurality of reference signals referenced for channel estimation in the base station Control to transmit at different times through each of the plurality of antennas, check power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas when transmitting the reference signal, and Comparing the power of a transmission signal for a second communication network among communication networks with a set threshold, based on the comparison result, the maximum transmittable power for each antenna transmission path and the confirmed power related information, the plurality of antennas At least one antenna transmission path through which a transmission signal for the second communication network is transmitted may be set among a plurality of antenna transmission paths corresponding to .

According to various embodiments, when the power of the transmission signal for the second communication network is less than the set threshold as a result of the comparison, the communication processor is configured to send the plurality of antennas to the plurality of antennas based on the identified power-related information. At least one antenna transmission path through which a transmission signal for the first communication network is transmitted may be configured among a plurality of corresponding antenna transmission paths.

According to various embodiments, the communication processor is configured such that the power of the transmission signal for the second communication network is smaller than a set first threshold value, and the power of the transmission signal for the first communication network is smaller than the set third threshold value. In this case, based on the identified power-related information and an antenna path loss corresponding to each antenna, transmission to the first communication network among a plurality of antenna transmission paths corresponding to the plurality of antennas At least one antenna transmission path for transmitting a signal may be configured.

According to various embodiments, the communication processor may be configured such that the power of the transmission signal for the second communication network is less than a set first threshold value, and the power of the transmission signal for the first communication network is greater than the set third threshold value. , compare a transmission target power of the transmission signal with a set fourth threshold, and the comparison result. When the transmission target power of the transmission signal is greater than the set fourth threshold, transmission to the first communication network among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the checked power-related information At least one antenna transmission path for transmitting a signal may be configured.

According to various embodiments, as a result of the comparison, the communication processor is configured to include a first power of a transmission signal for the second communication network is greater than a set first threshold value, and a first transmission target power of the electronic device is set. 2, to set at least one antenna transmission path through which a transmission signal for the second communication network is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the identified power-related information. can

Hereinafter, with reference to FIGS. 11 to 16 , various embodiments of setting a specific antenna transmission path among a plurality of antenna transmission paths in the CP 260 or the RFIC 410 of the electronic device 101 according to various embodiments will be described in detail.

11 to 16 are flowcharts illustrating a method of operating an electronic device according to various embodiments of the present disclosure. The operation of FIGS. 11 to 16, which will be described later, may be performed in any one of FIGS. 4A, 4B, 4C, 4D, 5, 6A, 6B, 6C, 7, 8, or 9 described above. can be applied to the device.

11 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 11 , according to various embodiments, the electronic device 101 (eg, the communication processor 260 of the electronic device) performs a reference signal at different times through each of the plurality of antennas in operation 1110 . signal) can be transmitted. According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto.

According to various embodiments, in operation 1120 , when the reference signal is transmitted, the electronic device 101 may check power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, in operation 1130 , the electronic device 101 transmits at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the identified power-related information. can be determined or set.

According to various embodiments, the electronic device 101 checks an antenna loss from the checked power related information, and applies the antenna loss to the plurality of antennas based on the checked antenna loss and/or maximum transmittable power. It is possible to determine or set at least one antenna transmission path through which a transmission signal is to be transmitted among a plurality of corresponding antenna transmission paths. The antenna loss may include the reflected power of the transmitted signal, a ratio of the reflected power to an incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL); return loss) or a reflection coefficient (gamma, reflection coefficient) may be determined based on at least one of.

For example, the electronic device 101 may set the antenna loss as a ratio of the reflected power to the incident power of the transmission signal. According to various embodiments, the electronic device 101 calculates the difference between the maximum transmittable power and the antenna loss (maximum transmitable power-antenna loss) as the expected maximum power (hereinafter, 'expected maximum power') that can be radiated from the actual antenna. ') can be confirmed or estimated. According to various embodiments, the electronic device 101 checks the difference between the maximum transmittable power and the antenna loss for a plurality of antenna transmission paths, and determines the difference between the confirmed maximum transmitable power and the antenna loss (eg, the expected maximum transmit power). power) may be determined or set as the antenna transmission path through which the transmission signal is transmitted.

12 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 12 , according to various embodiments, the electronic device 101 (eg, the communication processor 260 of the electronic device) performs a reference signal at different times through each of the plurality of antennas in operation 1210 . signal) can be transmitted. According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto.

According to various embodiments, in operation 1220 , when the reference signal is transmitted, the electronic device 101 may check power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, in operation 1230 , the electronic device 101 may compare a transmission target power for a first communication network among a plurality of communication networks with a preset threshold value (Tx threshold).

According to various embodiments, in operation 1240 , in operation 1240 , the electronic device 101 provides a first communication network among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the comparison result and the checked power-related information. At least one antenna transmission path through which a transmission signal is to be transmitted may be determined or set.

According to various embodiments, when the target transmission power of the transmission signal is less than the set transmission power threshold as a result of the comparison, the electronic device 101 may operate in a low power mode. For example, the electronic device 101 transmits a transmission signal among a plurality of antenna transmission paths corresponding to the plurality of antennas by further considering an antenna path loss corresponding to each antenna in the low power mode. At least one antenna transmission path may be determined or set. The antenna path loss may be power loss corresponding to a transmission path from an antenna port of at least one RFFE circuit to each antenna.

According to various embodiments, the electronic device 101 subtracts the sum of the antenna loss and the antenna path loss from the transmit target power for each antenna transmission path in the low power mode (transmission target power-( Antenna loss + antenna path loss)), and the antenna transmission path having the largest value obtained by subtracting the antenna loss and the antenna path loss from the identified transmission target power may be determined or set as the antenna transmission path for transmitting the transmission signal. .

According to various embodiments, if, as a result of the comparison, the transmission target power of the transmission signal is greater than (or greater than or equal to) the set transmission power threshold, the electronic device 101 may operate in a high power mode. can For example, the electronic device 101 calculates the difference between the maximum transmittable power (target power) and the antenna loss (maximum transmitable power-antenna loss) in the high power mode, and the expected maximum power (e.g., estimated maximum power) can be confirmed or estimated. According to various embodiments, the electronic device 101 checks the difference between the maximum transmittable power and the antenna loss for a plurality of antenna transmission paths, and the antenna transmission path with the largest difference between the checked maximum transmitable power and the antenna loss. may be determined or set as an antenna transmission path through which the transmission signal is to be transmitted.

13 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 13 , according to various embodiments, the electronic device (eg, the electronic device 101 of FIG. 1 ) (eg, the communication processor 260 of the electronic device) performs a first communication network (eg, a 5G communication network) in operation 1302 . ) may discover and connect to a base station (gNB) (eg, RRC connection).

According to various embodiments, in operation 1304, the electronic device 101 transmits a reference signal at different times through each of the plurality of antennas, and checks power related information fed back from each antenna transmission path. can According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, in operation 1306 , the electronic device 101 may check the expected transmission power of each antenna based on the fed back power related information. According to various embodiments, the electronic device 101 calculates the difference between the maximum transmittable power and the antenna loss (maximum transmitable power-antenna loss) for each antenna transmission path and calculates the expected maximum power that can be actually radiated from the antenna (eg, , the expected maximum power) can be confirmed or estimated. The antenna loss may include the reflected power of the transmitted signal, a ratio of the reflected power to an incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL); return loss) or a reflection coefficient (gamma, reflection coefficient) may be determined based on at least one of. The electronic device 101 may determine or set the antenna transmission path corresponding to the antenna having the largest value among the predicted maximum powers identified for each antenna transmission path as the optimal antenna transmission path.

According to various embodiments, in operation 1308 , the electronic device 101 may determine whether an antenna transmission path currently being used for signal transmission to the first communication network is the optimal antenna transmission path.

According to various embodiments, when it is determined in operation 1308 that the antenna transmission path currently being used for signal transmission to the first communication network is determined as the optimal antenna transmission path (1308-Y), the electronic device 101 operates In 1310, the currently used antenna transmission path may be maintained.

According to various embodiments, when it is determined in operation 1308 that the antenna transmission path currently being used for signal transmission to the first communication network is not the optimal antenna transmission path (1308 -N), the electronic device 101 determines that , in operation 1312, the antenna transmission path corresponding to the first communication network (eg, NR) may be changed to the optimal antenna transmission path.

According to various embodiments, referring to FIG. 9 , while transmitting a signal for the first communication network through the first antenna 831 or the second antenna 832 , an optimal antenna transmission path is determined according to the determination. If it is determined that the third antenna 833 or the fourth antenna 834 is determined, the CP 120 or the RFIC 410 controls the first switch 813 and the second switch 823 for the first communication network. A signal may be controlled to be transmitted through the third antenna 833 or the fourth antenna 834 . According to various embodiments, the signal for the second communication network being transmitted through the third antenna 833 or the fourth antenna 834 is the first antenna 831 or the second antenna 832 according to the determination. It can be controlled to be transmitted through

14 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 14 , according to various embodiments, an electronic device (eg, the electronic device 101 of FIG. 1 ) (eg, the communication processor 260 of the electronic device) performs a first communication network (eg, a 5G communication network) in operation 1402 . ) may discover and connect to a base station (gNB) (eg, RRC connection).

According to various embodiments, in operation 1404 , the electronic device 101 transmits a reference signal at different times through each of the plurality of antennas, and checks power related information fed back from each antenna transmission path. can According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, in operation 1406 , the electronic device 101 may determine whether a transmission target power of a transmission signal for a first communication network among a plurality of communication networks is less than a transmission power threshold (Tx threshold). .

According to various embodiments of the present disclosure, in operation 1406 , when it is determined that the target transmission power of the transmission signal is less than the set transmission power threshold value (1406-Y), the electronic device 101 performs operation 1408 may operate in a low power mode. For example, the electronic device 101 transmits a transmission signal among a plurality of antenna transmission paths corresponding to the plurality of antennas by further considering an antenna path loss corresponding to each antenna in the low power mode. At least one antenna transmission path may be determined or set. The antenna path loss may be power loss corresponding to a transmission path from an antenna port of at least one RFFE circuit to each antenna.

According to various embodiments, the electronic device 101 subtracts the sum of the antenna loss and the antenna path loss from the transmit target power in the low power mode (transmission target power-(antenna loss+antenna path) loss)) and determine or set the antenna transmission path having the largest value obtained by subtracting the antenna loss and the antenna path loss from the identified transmission target power as the antenna transmission path for transmitting the transmission signal for the first communication network. have.

According to various embodiments of the present disclosure, in operation 1406 , when the target transmission power of the transmission signal is greater than (or greater than or equal to) the set transmission power threshold as a result of the determination ( 1406-N), the electronic device 101 performs an electronic The device 101 may operate in a high power mode in operation 1410 . For example, the electronic device 101 calculates the difference between the maximum transmittable power and the antenna loss in the high power mode (maximum transmitable power-antenna loss) and the expected maximum power (eg, expected maximum power) that can be radiated from the actual antenna. can be confirmed or estimated. According to various embodiments, the electronic device 101 checks the difference between the maximum transmittable power and the antenna loss for a plurality of antenna transmission paths, and determines the difference between the confirmed maximum transmitable power and the antenna loss (eg, the expected maximum transmit power). power) may be determined or set as the antenna transmission path through which the transmission signal of the first communication network is transmitted.

15 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 15 , according to various embodiments, the electronic device (eg, the electronic device 101 of FIG. 1 ) (eg, the communication processor 260 of the electronic device) performs a first communication network (eg, NR) and It can operate as EN-DC by simultaneously connecting to a second communication network (eg, LTE). In the description of FIG. 15 to be described later, EN-DC in which the second communication network (eg, LTE) operates as an anchor node is described as an example, but NE-DC in which the first communication network (eg, NR) operates as an anchor node The same or similar can be applied to

According to various embodiments, in operation 1504 , the electronic device 101 transmits a reference signal at different times through each of the plurality of antennas and checks power related information fed back from each antenna transmission path. can According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, in operation 1506 , the electronic device 101 may determine whether a transmission target power of a transmission signal for a second communication network among a plurality of communication networks is less than a transmission power threshold (Tx threshold). . For example, the electronic device preferentially considers the power of a transmission signal to the second communication network in an EN-DC environment in which the second communication network (LTE) serves as a master node as shown in FIG. 3A , so that the second communication It is possible to prevent the occurrence of a call drop according to the interruption of the transmission signal to the network.

According to various embodiments of the present disclosure, in operation 1506, when the target transmission power of the transmission signal for the second communication network is smaller than the set transmission power threshold (1506-Y) as a result of the determination, the electronic device 101 performs operation 1508 may determine whether an antenna transmission path corresponding to the first communication network is optimal.

According to various embodiments, if, as a result of the determination in operation 1508, the antenna transmission path currently being used for signal transmission to the first communication network is determined as the optimal antenna transmission path (1508-Y), the electronic device 101 operates At 1510 , the currently used antenna transmission path may be maintained.

According to various embodiments, when it is determined in operation 1508 that the antenna transmission path currently being used for signal transmission to the first communication network is not the optimal antenna transmission path (1508-N), the electronic device 101 determines that , in operation 1516, the antenna transmission path corresponding to the first communication network (eg, NR) may be changed to the optimal antenna transmission path.

According to various embodiments of the present disclosure, in operation 1506 , when the target transmission power of the transmission signal for the second communication network is greater than (or greater than or equal to) the set transmission power threshold as a result of the determination ( 1506-N), in operation 1512 , the electronic device 101 may check the expected transmission power of each antenna based on the fed back power related information. According to various embodiments, the electronic device 101 converts the difference between the maximum transmittable power and the antenna loss (maximum transmitable power-antenna loss) as the expected maximum power that can be radiated from the actual antenna (eg, the expected maximum power). can be confirmed or estimated. The antenna loss may include the reflected power of the transmitted signal, a ratio of the reflected power to an incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL); return loss) or a reflection coefficient (gamma, reflection coefficient) may be determined based on at least one of. The electronic device 101 may determine or set the antenna transmission path corresponding to the antenna having the largest value among the estimated transmission powers identified for each antenna as the optimal antenna transmission path.

According to various embodiments, in operation 1514 , the electronic device 101 may determine whether the antenna transmission path currently being used for signal transmission of the second communication network is the optimal antenna transmission path.

According to various embodiments, if, as a result of the determination in operation 1514, the antenna transmission path currently being used for signal transmission to the second communication network is determined as the optimal antenna transmission path (1514-Y), the electronic device 101 operates At 1510 , the currently used antenna transmission path may be maintained.

According to various embodiments, when it is determined that the antenna transmission path currently being used for signal transmission to the second communication network is not the optimal antenna transmission path as a result of the determination in operation 1514 (1514-N) , in operation 1516, the antenna transmission path corresponding to the second communication network (eg, NR) may be changed to the optimal antenna transmission path.

According to various embodiments, in operation 1506 described above, the electronic device 101 determines whether a transmission target power of a transmission signal for a second communication network among a plurality of communication networks is less than a transmission power threshold (Tx threshold). Together with , it may be further determined whether the transmission target power of the transmission signal for the first communication network is smaller than a transmission power threshold (Tx threshold). For example, in operation 1506 described above, when the target transmission power of the transmission signal for the first communication network and the transmission target power of the transmission signal for the second communication network are both less than the transmission power threshold (Tx threshold), the electronic device According to operations 1508 and less, an antenna transmission path corresponding to the first communication network may be set as an optimal transmission antenna transmission path. On the other hand, when any one of the transmission target power of the transmission signal for the first communication network and the transmission target power of the transmission signal for the second communication network is greater than the transmission power threshold (Tx threshold), the electronic device performs operation 1512 or less. An antenna transmission path corresponding to the second communication network may be set as an optimal transmission antenna transmission path according to an operation.

16 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure; The electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one RFIC and at least one radio frequency front-end (RFFE) (431, 432, 433, 510, 520, 631, 632, 811, 821) is connected through a circuit to transmit a signal corresponding to at least one communication network of

antennas

441, 442, 443, 444, 531, 532, 533, 534, 661, 662, 663, 664, 831, 832, 833, 834.

Referring to FIG. 16 , according to various embodiments, the electronic device (eg, the electronic device 101 of FIG. 1 ) (eg, the communication processor 260 of the electronic device) performs a first communication network (eg, a 5G communication network) in operation 1602 . ) may discover and connect to a base station (gNB) (eg, RRC connection).

According to various embodiments, in operation 1604 , the electronic device 101 transmits a reference signal at different times through each of the plurality of antennas, and checks power related information fed back from each antenna transmission path. can According to various embodiments, the reference signal may be a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement, but is not limited thereto. The power-related information may include reflected power of a transmission signal transmitted through the at least one antenna.

According to various embodiments, the electronic device 101 may determine whether an SAR backoff event has occurred in operation 1606 . According to various embodiments, the determination of whether the SAR backoff event has occurred may be performed by the processor 120 . For example, the processor 120 may receive various types of sensing information from the sensor module 176 and determine whether an SAR backoff event has occurred based on the received sensing information. For example, 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 an electrical signal or data value corresponding to the sensed state can create According to an embodiment, the sensor module 176 may include, 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 IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor. According to various embodiments, the processor 120 may determine from the grip sensor of the sensor module 176 that the user holds the electronic device 101 with a hand, and determine that the SAR backoff event has occurred. According to various embodiments, the processor 120 connects an external electronic device through a connection terminal 178 (eg, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector)). When (eg, the ear jack of the earphone is connected), it may be determined that the SAR backoff event has occurred.

According to various embodiments, when it is determined in operation 1606 that the SAR backoff event has not occurred (1606-N), the electronic device 101 may maintain the currently used antenna transmission path in operation 1608 . .

According to various embodiments, if it is determined that the SAR backoff event has occurred as a result of the determination in operation 1606 (1606-Y), the electronic device 101 performs operation 1610 based on the fed back power-related information. Thus, it is possible to check the expected transmit power from each antenna. According to various embodiments, the electronic device 101 converts the difference between the maximum transmittable power and the antenna loss (maximum transmitable power-antenna loss) as the expected maximum power that can be radiated from the actual antenna (eg, the expected maximum power). can be confirmed or estimated. The antenna loss may include the reflected power of the transmitted signal, a ratio of the reflected power to an incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL); return loss) or a reflection coefficient (gamma, reflection coefficient) may be determined based on at least one of. The electronic device 101 may determine or set the antenna transmission path corresponding to the antenna having the largest value among the predicted maximum powers identified for each antenna as the optimal antenna transmission path.

According to various embodiments, in operation 1612 , the electronic device 101 may determine whether the antenna transmission path currently being used for signal transmission of the first communication network is the optimal antenna transmission path.

According to various embodiments, if, as a result of the determination in operation 1612 , the antenna transmission path currently being used for signal transmission to the first communication network is determined as the optimal antenna transmission path ( 1612-Y), the electronic device 101 operates At 1608, the currently used antenna transmission path may be maintained.

According to various embodiments, when it is determined in operation 1612 that the antenna transmission path currently being used for signal transmission to the first communication network is not the optimal antenna transmission path (1612-N), the electronic device 101 determines that , may change the antenna transmission path corresponding to the first communication network (eg, NR) to the optimal antenna transmission path in operation 1614 .

According to various embodiments, when an SAR backoff event occurs in an electronic device that provides a plurality of antenna transmission paths, an antenna transmission path corresponding to an antenna having the best signal radiation (eg, the highest expected maximum power) for each antenna according to various embodiments of the present disclosure. By selecting a large antenna transmission path) as the antenna transmission path corresponding to the first communication network, degradation of transmission signal performance can be prevented.

The method according to any one of various embodiments includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and at least one RFIC and at least one radio frequency front (RFFE), respectively. -end) In the method for setting an antenna transmission path in an electronic device including a plurality of antennas connected through a circuit and transmitting a signal corresponding to at least one communication network, a plurality of reference signals referenced for channel estimation in a base station An operation of transmitting reference signals at different times through each of the plurality of antennas, and checking power related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas when the reference signal is transmitted operation, and setting at least one antenna transmission path for transmitting a transmission signal among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the maximum transmittable power for each antenna transmission path and the identified power-related information It may include an action to

The method according to any one of various embodiments includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and a signal corresponding to a first communication network connected to the at least one RFIC a first radio frequency front-end (RFFE) circuit configured to process a second RFFE circuit coupled to the at least one RFIC and configured to process a signal corresponding to a second communication network; In the method for setting an antenna transmission path in an electronic device including a plurality of antennas connected through one RFFE circuit and transmitting a signal corresponding to at least one communication network, a plurality of reference signals referenced for channel estimation in a base station An operation of transmitting reference signals at different times through each of the plurality of antennas, and checking power related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas when the reference signal is transmitted operation, comparing the power of a transmission signal for a second communication network among the plurality of communication networks with a set threshold, and as a result of the comparison, the maximum transmittable power for each antenna transmission path and the confirmed power-related information based on the plurality of antenna transmission paths corresponding to the plurality of antennas, setting at least one antenna transmission path through which a transmission signal for the second communication network is transmitted.

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

It should be understood that the various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates 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 , B, or C" each may include any one of, or all possible combinations of, items listed together in the corresponding one of the phrases. Terms such as “first”, “second”, or “first” or “second” may simply be used to distinguish the component from other such components, and refer to the component in another aspect (e.g., importance or order) is not limited. that one (e.g., first) component is "coupled" or "connected" to another (e.g., second) component with or without the terms "functionally" or "communicatively" When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit or a part of the part that performs 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 document include software (eg, one or more instructions stored in a storage medium (eg, internal memory or external memory) readable by a machine (eg, a master device or a task performing device)) For example, it can be implemented as a program). For example, a processor of a device (eg, a master device or a task performing device) may call at least one of one or more instructions stored from a storage medium and execute it. This makes it possible for 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 device-readable storage medium 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 in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

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

According to various embodiments, each component (eg, a module or a 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, a module or a program) 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 identically or similarly to those 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 are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

Claims

In an electronic device,

communication processor;

at least one radio frequency integrated circuit (RFIC) coupled to the communication processor; and

A plurality of antennas each connected to the at least one RFIC and at least one radio frequency front-end (RFFE) circuit to transmit a signal corresponding to at least one communication network;

The communication processor,

Controlling the base station to transmit a plurality of reference signals referenced for channel estimation at different times through each of the plurality of antennas,

Checking power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas during transmission of the reference signal,

Setting at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the maximum transmittable power for each antenna transmission path and the identified power-related information; Device.
According to claim 1, wherein the reference signal,

An electronic device comprising a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.
According to claim 1, wherein the power-related information,

and reflected power of a transmission signal transmitted through the at least one antenna.
According to claim 3, wherein the communication processor,

Check the antenna loss (antenna loss) from the confirmed power-related information,

and setting at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the identified antenna loss.
5. The method of claim 4, wherein the antenna loss is

the reflected power of the transmitted signal, the ratio of the reflected power to the incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL), or The electronic device is determined based on at least one of a reflection coefficient (gamma).
According to claim 1, wherein the communication processor,

comparing a transmission target power of the transmission signal with a set transmission power threshold,

When the transmission target power of the transmission signal is less than the set transmission power threshold,

An electronic device configured to set at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas by further considering an antenna path loss corresponding to the respective antennas .
The method of claim 6, wherein the antenna path loss is

power loss corresponding to a transmission path from an antenna port of the at least one RFFE circuit to each antenna.
According to claim 6, wherein the communication processor,

Check whether a specific absorption rate (SAR) backoff event occurs,

If it is confirmed that the SAR backoff event has occurred,

The electronic device is configured to configure at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas by further considering the power corresponding to the SAR backoff event.
In an electronic device,

communication processor;

at least one radio frequency integrated circuit (RFIC) coupled to the communication processor;

a first radio frequency front-end (RFFE) circuit connected to the at least one RFIC and configured to process a signal corresponding to a first communication network;

a second RFFE circuit coupled to the at least one RFIC and configured to process a signal corresponding to a second communication network; and

A plurality of antennas each connected through the at least one RFIC and at least one RFFE circuit to transmit a signal corresponding to at least one communication network;

The communication processor,

Controlling the base station to transmit a plurality of reference signals referenced for channel estimation at different times through each of the plurality of antennas,

Checking power-related information fed back from an antenna transmission path corresponding to each antenna among the plurality of antennas during transmission of the reference signal,

comparing the power of a transmission signal for a second communication network among the plurality of communication networks with a set threshold,

Based on the comparison result, the maximum transmittable power for each antenna transmission path and the confirmed power related information, at least one of a plurality of antenna transmission paths corresponding to the plurality of antennas to transmit a transmission signal for the second communication network An electronic device for establishing one antenna transmission path.
The method of claim 9, wherein the reference signal,

An electronic device comprising a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.
The method of claim 9, wherein the power-related information,

and reflected power of a transmission signal transmitted through the at least one antenna.
The method of claim 11, wherein the communication processor,

Check the antenna loss (antenna loss) from the confirmed power-related information,

and setting at least one antenna transmission path through which a transmission signal is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the identified antenna loss.
The method of claim 12, wherein the antenna loss is

the reflected power of the transmitted signal, the ratio of the reflected power to the incident power of the transmitted signal, a voltage standing wave ratio (VSWR) of the transmitted signal, a return loss (RL), or The electronic device is determined based on at least one of a reflection coefficient (gamma).
10. The method of claim 9, wherein the communication processor,

As a result of the comparison, when the power of the transmission signal for the second communication network is less than the set threshold value,

and setting at least one antenna transmission path through which a transmission signal for the first communication network is transmitted among a plurality of antenna transmission paths corresponding to the plurality of antennas based on the identified power-related information.
10. The method of claim 9, wherein the communication processor,

When the power of the transmission signal for the second communication network is less than a set first threshold value, and the power of the transmission signal for the first communication network is less than the set third threshold value,

Based on the identified power-related information and an antenna path loss corresponding to each antenna, a transmission signal for the first communication network among a plurality of antenna transmission paths corresponding to the plurality of antennas An electronic device for setting at least one antenna transmission path to be transmitted.