WO2022186545A1

WO2022186545A1 - Electronic device comprising plurality of antennas, and operation method therefor

Info

Publication number: WO2022186545A1
Application number: PCT/KR2022/002728
Authority: WO
Inventors: 김근우; 김관식; 박찬호; 정상민
Original assignee: 삼성전자 주식회사
Priority date: 2021-03-02
Filing date: 2022-02-24
Publication date: 2022-09-09
Also published as: KR20220124030A

Abstract

An electronic device according to various embodiments comprises a plurality of antennas and at least one processor, wherein the at least one processor may be configured to: confirm, on the basis of a reference signal received power (RSRP) value corresponding to each of the plurality of antennas, whether to perform antenna switching for changing, from a first antenna to a second antenna, the antenna for transmitting a transmission signal, among the plurality of antennas; confirm, if the antenna switching is performed, the difference between a first RSRP value of the first antenna and a second RSRP value of the second antenna; and determine, on the basis of the difference, the strength of transmission power of an RF signal inputted to the second antenna.

Description

Electronic device including a plurality of antennas and method of operating the same

Various embodiments of the present disclosure relate to an electronic device including a plurality of antennas and an operating method thereof.

As the use of mobile terminals providing various functions has become common due to the recent 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 the 5G communication system, beamforming, massive MIMO, full dimensional MIMO; FD-MIMO), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

In order to transmit a signal from the electronic device to a communication network (eg, a base station), in the electronic device, data generated from a processor or a communication processor is signal-processed through a radio frequency integrated circuit (RFIC) and a radio frequency front end (RFFE) circuit. After being processed, it may be transmitted to the outside of the electronic device through at least one antenna.

According to various embodiments, as 5G wireless communication technology is commercialized, an electronic device may include a plurality of antennas and may perform an SRS antenna switching function to improve throughput. Accordingly, the electronic device includes the 1T4R circuit and may perform antenna switching without a separate additional circuit. However, even when the transmission antenna is switched, the electronic device determines the transmission power applied to the transmission antenna by using the downlink path loss for the antenna before the transmission antenna is switched.

According to various embodiments, when the transmission power is determined using the downlink path loss of the antenna before the switching is performed even after the antenna switching is performed, a transmission signal corresponding to the determined transmission power is not accurately output. can be Due to this, the electronic device may generate issues such as RACH fail, ACK/NACK check fail, and current consumption.

After the transmission antenna is switched, the electronic device according to various embodiments of the present disclosure may measure a downlink pathloss based on the corresponding antenna and determine the transmission power based on the measured downlink pathloss.

An electronic device according to various embodiments includes a plurality of antennas and at least one processor, wherein the at least one processor includes a reference signal received power (RSRP) corresponding to each of the plurality of antennas. )), it is checked whether to perform antenna switching for changing an antenna for transmitting a transmission signal among the plurality of antennas from a first antenna to a second antenna, and when the antenna switching is performed, the first It may be configured to check the difference between the first RSRP value of the antenna and the second RSRP value of the second antenna, and determine the strength of the transmit power of the RF signal input to the second antenna based on the difference.

In a method of operating an electronic device according to various embodiments of the present disclosure, based on a reference signal received power (RSRP) value corresponding to each of a plurality of antennas included in the electronic device, the plurality of antennas are Checking whether to perform antenna switching for changing the antenna for transmitting the transmission signal from the first antenna to the second antenna. When the antenna switching is performed, the first RSRP value of the first antenna and the second antenna It may include an operation of confirming a difference between the second RSRP values, and an operation of determining the strength of the transmission power of the RF signal input to the second antenna based on the difference.

An electronic device according to various embodiments of the present disclosure includes a plurality of antennas and at least one processor, wherein the at least one processor includes a first reference signal reception power measured based on a first antenna among the plurality of antennas ( a first downlink pathloss between the electronic device and the network using a reference signal received power (RSRP) value Checking the first transmission power of the input RF signal, controlling the RF signal of the first transmission power to be input to the first antenna to transmit the transmission signal through the first antenna, Based on the second RSRP value measured based on the two antennas and the first RSRP value satisfies a specified condition, an antenna for transmitting a transmission signal among the plurality of antennas is changed from the first antenna to the second antenna. Antenna switching is performed. check whether or not to do so, and when the antenna switching is performed, a second downlink pathloss between the electronic device and the network is checked using the second RSRP value, and the second downlink pathloss is based on the second transmission power of the RF signal input to the second antenna, and controlling the RF signal of the second transmission power to be input to the second antenna to transmit the transmission signal through the second antenna. can be set.

After the transmission antenna is switched, the electronic device according to various embodiments of the present disclosure measures a downlink pathloss based on the corresponding antenna, determines the transmission power based on the measured downlink pathloss, and performs switching It is possible to determine the exact transmit power that meets the conditions of the antenna.

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;

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;

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

5 is a block diagram illustrating a method of determining maximum transmittable power according to various embodiments.

6 is a diagram illustrating a reference signal transmission of an electronic device according to various embodiments of the present disclosure;

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

8 is a flowchart illustrating an operation in which an electronic device determines transmit power according to various embodiments of the present disclosure;

9 is a flowchart illustrating an operation in which an electronic device determines transmit power, according to various embodiments of the present disclosure;

10 is a diagram for explaining that an electronic device performs antenna switching according to various embodiments of the present disclosure;

11 is a diagram illustrating transmit power corresponding to RSRP measured based on each of a plurality of antennas according to various embodiments.

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 module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 . In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

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 stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 uses less power than the main processor 121 or is set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act 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 module 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. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

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 module 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 module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 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. 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 module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

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 module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the 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 188 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 performance 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 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). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a 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 or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.

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 197 may include an 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 (eg, an array antenna). 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, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

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

electronic devices

102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more 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. 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, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. The server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

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 that has been 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 an HS-UART interface or a 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 may 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 pre-processed 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, a 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 a 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 at least a part of a single chip or 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, they may be implemented as an integrated RFIC. In this case, the integrated RFIC is connected to the first RFFE 232 and the second RFFE 234 to convert a baseband signal into a signal of a band supported by the first RFFE 232 and/or the second RFFE 234 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 example, 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, the bottom surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is located in another partial region (eg, the top surface). 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 the 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 part of the third RFFE 236 , a plurality of phase shifters 238 corresponding to a 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 may not have a 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 includes, for example, a 4G or LTE base station 340 (eg, an eNB (eNodeB)) of the 3GPP standard 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 with the electronic device 101 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, an LTE base station 340 and an EPC 342 ) to at least a part of a 5G network (eg: The NR base station 350 and the 5GC 352 may transmit and 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 , the legacy network and the 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/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).

4 is a block diagram of an electronic device according to various embodiments of the present disclosure; According to various embodiments, FIG. 4 may show 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).

Referring to FIG. 4 , 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 of the present invention are not limited to the arrangement position.

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 first communication network. . 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 . It can transmit to the antenna 442 .

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 components disposed on the transmission path are different.

According to various embodiments, the communication processor 260 may control the transmission power of the RF signal applied or input to each antenna according to various setting conditions. For example, the communication processor 260 checks a downlink pathloss (or downlink pathloss) based on a reference signal received from the base station, and based on the checked downlink pathloss, RF applied or input to each antenna. It is possible to determine or set the transmit power of the signal. The communication processor 260 may determine or set the transmission power of the RF signal based on the type of the transmission signal transmitted through each antenna.

The electronic device 101 according to various embodiments may set the transmission power of the PUCCH for the subframe (i) according to Equation (1).

P _CMAX is the maximum output power according to the power class of the electronic device 101 . P _{O_PUCCH} is the sum of P _{O_NOMINAL_PUCCH} (a parameter specified by the cell) and P _{O_UE_PUCCH} (a parameter specified by the electronic device 101 ). PL is a downlink path-loss measured by the electronic device 101 . h (n _CQI , n _HARQ ) is a value according to the PUCCH format (PUCCH format), n _CQI is the amount of information according to a channel quality indicator (CQI), n _HARQ is a hybrid automatic retransmission request (hybrid automatic) repeat request, HARQ) is the number of bits.

is given to the electronic device 101 by RRC as a value for the PUCCH transport format F. g(i) is a value that can be adjusted by DCI (downlink control information) from the base station. At least some of the parameters for Equation 1 may comply with 3GPP TS 36.213, for example. The electronic device 101, P _CMAX , P _{O_UE_PUCCH} , PL, h(n _CQI , n _HARQ ),

A smaller value among the sum of , and g(i) may be set as the transmission power 712 of the PUCCH of LTE. In a situation in which the electronic device 101 is located in a strong electric field, the transmit power of the PUCCH may maintain a relatively low value.

The electronic device 101 according to various embodiments may set the transmission power of the PUSCH for the subframe (i) according to Equation (2).

P _CMAX is the maximum output power according to the power class of the electronic device 101 . M _PUSCH (i) is the number of resource blocks allocated to the electronic device 101 . P _{O_PUSCH} (j) is the sum of P _{O_NOMINAL_PUSCH} (j) (a parameter specified by the cell) and P _{O_UE_PUSCH} (j) (a parameter specified by the electronic device 101 ). PL is a downlink path-loss measured by the electronic device 101 . The scaling factor (α(j)) may be determined in a higher layer in consideration of the pathloss mismatch between the uplink channel and the downlink channel.

is a modulation and coding scheme (MCS) compensation parameter or a transport format (TF) compensation parameter. f(i) is a value adjusted by DCI (downlink control information) from the base station after initial setting. The electronic device 101 is a product of P _CMAX , M _PUSCH (i), P _{O_PUSCH} (j), a scaling factor (α(j)), and PL;

A smaller value among the sum of , , and f(i) may be set as the transmission power of the PUSCH. At least some of the parameters for Equation 2 may comply with 3GPP TS 36.213, for example. Even in a situation where the electronic device 101 is located in a strong electric field, if the number of resource blocks allocated to the electronic device 101 (M _PUSCH (i)) is relatively large, the transmission power of the PUSCH has a relatively high value. can keep

The electronic device 101 according to various embodiments may determine the transmission power of the PRACH according to Equation (3).

The electronic device 101,

(UE maximum power) and,

(PRACH target power) and

A smaller value among the sum of (path loss) may be determined as the transmit power of the PRACH. In Equation 3,

may mean the transmission power of the PRACH on the activated uplink bandwidth part (UP BWP) 'b' of the carrier frequency f of the serving cell c within the transmission occasion i.

may be the maximum output power for each user equipment (UE) defined in 3GPP TS 38.101-1 and 3GPP TS 38.101-2 for the carrier frequency f of the serving cell c within the transmission opportunity i.

may be the PRACH target reception power provided by higher layers for the activated uplink bandwidth part (UP BWP) 'b' of the carrier frequency f of the serving cell c within the transmission opportunity i.

For the activated uplink bandwidth part (UP BWP) 'b' of the carrier frequency f based on a DL RS (downlink reference signal) associated with PRACH transmission on the activated downlink bandwidth part (DL BWP) of the serving cell c It may be a path loss. The path loss is, for example, a value obtained by subtracting a higher layer filtered RSRP (dBm) from referenceSignalPower, and may be calculated by the electronic device 101 in dB units. referenceSignalPower may be SS-PBCHBlcokPower provided by SystemInformationBlcokType1.

According to various embodiments, the communication processor 260 may set or change (eg, switch) an antenna for transmitting the transmission signal Tx by controlling the switch 450 according to various setting conditions. According to various embodiments, the communication processor 260 may set a transmission path in response to an antenna capable of radiating the transmission signal Tx with maximum power. For example, as shown in FIG. 4 , when a transmission signal is transmitted by the electronic device 101 including a plurality of antenna transmission paths, corresponding to each antenna (eg, the first antenna 441 and the second antenna 442 ). An optimal antenna transmission path may be set in consideration of the lower channel environment (eg, the strength of the received signal) and the maximum transmittable power. The communication processor 260 may determine an optimal antenna transmission path and control the switch 450 to transmit a transmission signal through the determined optimal antenna transmission path.

According to various embodiments, the electronic device 101 (eg, the communication processor 260 ) is configured for every set time period (eg, 640 ms) or when a specific event occurs (eg, a SAR event occurs or the electric field situation rapidly changes). In this case, signaling of the base station) and whether the transmission path of the transmission signal is changed (or whether the antenna is switched) may be checked.

For example, the electronic device 101 (eg, the communication processor 260 ) provides information (eg, reference signal received power (RSRP), received strength signal indicator (RSSI), reference signal (RSRQ)) related to the strength of a reception signal for each reception path. signal received quality), or signal to interference plus noise ratio (SINR). Referring to FIG. 4A , the electronic device 101 provides information (eg, a first RSRP) and a second antenna 442 related to the strength of a received signal (eg, PRx) received through a first antenna 441 . It is possible to check information (eg, the second RSRP) related to the strength of the received signal (eg, DRx) received through . The communication processor 260 may determine an optimal transmission path based on a difference (eg, second RSRP(dBm)-first RSRP(dBm)) between the strengths of the reception signals for the plurality of reception paths, and , it is possible to determine whether to change the transmission path according to the determined optimal transmission path. For example, the communication processor 260 may calculate an average value (eg, RSRP average) of the difference between the received signal strengths calculated in the previous measurement period and the currently measured received signal strengths. For example, the difference between the currently measured strengths of the received signal is greater than or equal to a first threshold (eg, 'high threshold') or (eg, when RSRP is rapidly changed), or the calculated average value is a second threshold (eg, ' low threshold') or higher (eg, when a continuous RSRP difference occurs), by controlling the switch 450, the transmission path of the transmission signal may be changed (eg, the transmission antenna is switched).

According to various embodiments, when determining whether to change the transmission path, the electronic device 101 (eg, the communication processor 260 ) obtains a maximum transmittable power (Tx max power) for each transmission path based on a difference between the strengths of the received signal. can be further considered. The maximum transmittable power is determined for each antenna transmission path of the electronic device 101 (eg, a transmission path transmitted through the first antenna 441 of FIG. 4A and a transmission path transmitted through the second antenna 442 of FIG. 4A ). It may mean the maximum power that can be transmitted. Hereinafter, an example of determining the maximum transmittable power will be described in detail with reference to FIG. 5 .

5 is a block diagram illustrating a method of determining maximum transmittable power according to various embodiments. Referring to FIG. 5 , according to various embodiments, the maximum transmittable power for each transmission path is a maximum transmitable power (P-MAX Power) (PeMax) received from each communication network (eg, a base station), an electronic device ( 101), considering the maximum transmittable power (UE Tx MAX Power; PcMax) for each transmission path and SAR (specific absorption rate) backoff, the maximum transmission of the SAR event set in response to each SAR event It may be set in consideration of at least one of SAR EVENT MAX Power. For example, the maximum transmittable power may be determined as a minimum value among the plurality of maximum transmitable powers (eg, P-MAX Power, UE Tx MAX Power, and SAR EVENT MAX Power), 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 (eg, a grip event or a proximity event). Hereinafter, an example of determining the maximum transmittable power for each transmission path based on the plurality of maximum transmitable powers illustrated above will be described in detail.

According to various embodiments, the maximum transmittable power (P-MAX Power) (PeMax) received from the communication network (eg, a base station) may vary according to a power class (PC) supportable by each communication network or electronic device. It may be set differently. For example, if the power class is PC2, it may be determined as a value (eg, 27 dBm) within a range set based on 26 dBm, and if the power class is PC3, it may be determined as a value within a range set based on 23 dBm (eg, 24 dBm). have.

According to various embodiments, the maximum transmittable power (UE Tx MAX Power; PcMax) for each transmission path set in the electronic device 101 may differ as RFFE for each transmission path is different, and the length of each transmission path There may be differences depending on the difference.

Although FIG. 4 shows that one communication processor 260 and one RFIC 410 are connected to a plurality of

RFFEs

431 and 432 , various embodiments are not limited thereto. For example, various embodiments may include a plurality of

communication processors

212 , 214 and/or a plurality of

RFICs

222 , 224 , 226 , 228 with a plurality of RFFEs 431 and 432) may be connected.

6 is a diagram illustrating a reference signal transmission of an electronic device according to various embodiments of the present disclosure; Referring to FIG. 6 , the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) has four antennas (eg, a first antenna 441 , a second antenna 442 , and a third antenna 443 ). , a reference signal (eg, SRS) may be transmitted through the fourth antenna 444 . For example, the electronic device 101 amplifies a reference signal through at least one power amplifier (PA) 615 , and uses one antenna 441 and a second antenna 442 through at least one switch 616 . ), the third antenna 443 and the fourth antenna 444 may transmit the amplified reference signal. A reference signal (eg, SRS) transmitted through each antenna (eg, the first antenna 441 , the second antenna 442 , the third antenna 443 , and the fourth antenna 444 ) of the electronic device 101 ) may be received via each antenna 621 of the base station 620 (eg, gNB).

According to various embodiments, the base station 620 receives a reference signal transmitted from the electronic device 101, and each antenna (eg, one antenna 441 and a second antenna) of the electronic device 101 from the received reference signal. 442 , a third antenna 443 , and a channel for the fourth antenna 444 may be estimated. The base station 620 may transmit a precoded downlink signal to the electronic device 101 based on the channel estimation. For example, the electronic device 101 and the base station 620 may perform MIMO communication. According to various embodiments, the base station 620 may perform beamforming based on channel estimation in the FR2 band.

In FIG. 6 , the power amplifier 615 and the switch 616 are shown as one for convenience of explanation and a plurality of antennas (a first antenna 441 , a second antenna 442 , a third antenna 443 , and a fourth It will be readily understood by those skilled in the art, although not limited thereto, as connected to the antenna 444 .

6 , when the electronic device 101 transmits a reference signal (eg, SRS) through a plurality of transmission paths, the base station 420 receives each antenna (eg, the first antenna) of the electronic device 101 . 441, the second antenna 442, the third antenna 443, the fourth antenna 444) can check the channel environment, and can be used for precoding (or beamforming), as a result Reference signal received power (RSRP) and/or signal to noise ratio (SNR) of the downlink channel may be improved. When the RSRP and/or SNR of the downlink channel is improved, a rank index (RI) or a channel quality indicator (CQI) for the corresponding electronic device may be increased. The base station 620 allocates a high rank or MCS (modulation and code schemes) to the corresponding electronic device 101 based on the improved performance of the corresponding electronic device 101 . Downlink throughput can be improved.

According to various embodiments, the base station 620 may use a downlink reference signal for downlink channel estimation. For example, when the base station 620 transmits the downlink reference signal to the electronic device 101 , the electronic device 101 may receive the downlink reference signal transmitted from the base station 420 and perform channel estimation. The electronic device 101 may transmit the channel estimation result to the base station 620 , and the base station 620 may perform downlink beamforming with reference to the channel estimation result transmitted from the electronic device 101 . According to various embodiments, when the base station 620 performs channel estimation by the reference signal (eg, SRS) transmitted from the electronic device 101, the channel estimation may be performed faster than the channel estimation by the downlink reference signal. have.

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, a first communication network (eg, a base station (gNB)) or a second communication network (eg, a base station (eNB)) may request information related to a reception antenna of the electronic device 101 through a UE Capability Inquiry message. The electronic device 101 may receive the 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. According to various embodiments, information related to the reception antenna of the electronic device 101 may be included in the UE Capability Information message, such as 'supportedSRS-TxPortSwitch t1r4', according to the contents of the UE Capability Inquiry message.

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

Meanwhile, at least some of the operations of the electronic device 201 described below may be performed by the communication processor 260 and/or the processor 120 .

7 is a flowchart for describing a method of operating an electronic device according to various embodiments of the present disclosure.

Referring to FIG. 7 , according to various embodiments, in operation 701 , the electronic device 101 receives a first antenna (eg, the first antenna 441 of FIG. 4 ) among a plurality of antennas included in the electronic device 101 . )) through which the transmission signal can be transmitted. For example, the electronic device 101 uses a first reference signal received power (RSRP) value measured based on the first antenna 441 to perform a first connection between the electronic device 101 and the network. You can check the downlink pathloss. The electronic device 101 inputs an RF signal having a first transmission power to the first antenna 441 using the first downlink pass loss, and has the first transmission power input to the first antenna 441 . A transmission signal may be transmitted to the communication network based on the RF signal.

According to various embodiments, in operation 703 , the electronic device 101 may monitor the RSRP value of each of the plurality of antennas (eg, the plurality of antennas 441 to 444 of FIG. 4 ).

According to various embodiments, in operation 705 , the electronic device 101 may determine whether a specified condition for antenna switching is satisfied based on the monitored RSRP value. For example, the electronic device 101, when the difference between the RSRP measured based on the first antenna and the RSRP measured based on another antenna exceeds a specified threshold (eg, 10 dBm), it is determined that the specified condition is satisfied. can judge

According to various embodiments, when a specified condition is not satisfied (No in operation 705 ), the electronic device 101 may not perform antenna switching. For example, the electronic device 101 may continuously transmit a transmission signal through the first antenna.

According to various embodiments, when a specified condition is satisfied (eg in operation 705 ), in operation 707 , the electronic device 101 may perform antenna switching. For example, the electronic device 101 may perform antenna switching to a second antenna (eg, the second antenna 442 of FIG. 4 ) that satisfies a condition specified based on the first antenna.

According to various embodiments, in operation 709, the electronic device 101 may check the RPRP value of the switched antenna (eg, the second antenna 442).

According to various embodiments, in operation 711, the electronic device 101 may determine the strength of the second transmission power of the RF signal input to the second antenna based on the operation of checking the confirmed RSRP value of the second antenna. have. The electronic device 101 may input an RF signal having the second transmission power to the second antenna and transmit the transmission signal to the communication network.

8 is a flowchart illustrating an operation in which an electronic device determines transmit power, according to various embodiments of the present disclosure.

Referring to FIG. 8 , according to various embodiments, in operation 801 , the electronic device 101 performs a first antenna (eg, the first A transmission signal may be transmitted through the antenna 441). For example, the first downlink path loss may mean a path loss for a downlink between the electronic device 101 and the network based on the first antenna 441 . The electronic device 101 may determine the first transmission power of the RF signal input to the first antenna 441 based on the first downlink passloss. For example, the electronic device 101 may determine the transmission power of the RF signal according to the type of the transmission signal. For example, the electronic device 101 may determine the transmission power by using any one of Equations 1 to 3 according to the type of the transmission signal. In this case, in Equations 1 to 3, PL may be a downlink pathloss measured by the electronic device 101 .

According to various embodiments, the electronic device 101 may measure the first downlink passloss by using Equation (4).

for example,

(path loss or pass loss) may mean a value obtained by subtracting the RSRP value (higher layer filtered RSRP) from the reference signal power (ReferenceSignalPower). For example, the reference signal power may mean a reference signal power value previously stored in the electronic device 101 or received from a communication network. For example, the RSRP value may mean a value obtained by converting the power of the reference signal received from the base station into an RSRP value in dBM units.

According to various embodiments, in operation 803 , the electronic device 101 selects an antenna for transmitting a transmission signal from among the plurality of antennas (eg, the plurality of antennas 441 to 444 of FIG. 4 ) to the first antenna 441 . Antenna switching may be performed to change from to the second antenna (the second antenna 442 of FIG. 4 ). For example, the electronic device 101 may switch an antenna for transmitting a transmission signal from a first antenna to a second antenna satisfying a specified condition.

According to various embodiments, in operation 805 , the electronic device 101 may check the first RSRP value of the first antenna 441 and the second RSRP value of the second antenna 442 . For example, the first RSRP value may be an RSRP value measured based on the first antenna 441 . The second RSRP value may be an RSRP value measured based on the second antenna 442 .

According to various embodiments, in operation 807 , the electronic device 101 may identify a difference between the first RSRP value and the second RSRP value. For example, if the first RSRP value is -115 dBM and the second RSRP value is -85 dBM, the electronic device 101 may determine that the difference between the first RSRP value and the second RSRP value is 30 dBM.

According to various embodiments, in operation 809 , the electronic device 101 may measure the second downlink passloss by applying the identified difference as an offset to the first downlink passloss. For example, the electronic device 101 may apply 30 dBM as an offset with respect to the first downlink pathloss. That is, the electronic device 101 may measure the second downlink passloss by adding 30 dBM to the first downlink passloss.

According to various embodiments, in operation 811 , the electronic device 101 may determine the intensity of the second transmission power of the RF signal input to the second antenna 442 based on the measured second downlink pass loss. . The electronic device 101 may input the RF signal having the second transmission power to the second antenna 442 and transmit the transmission signal to the communication network.

9 is a flowchart illustrating an operation in which an electronic device determines transmit power according to various embodiments of the present disclosure.

Referring to FIG. 9 , according to various embodiments, in operation 901 , the electronic device 101 performs a first antenna (eg, the first A transmission signal may be transmitted through the antenna 441). For example, the first downlink path loss may mean a path loss for the downlink between the electronic device 101 and the network based on the first antenna. The electronic device 101 may determine the first transmission power of the RF signal based on the first downlink passloss.

According to various embodiments, in operation 903 , the electronic device 101 selects an antenna for transmitting a transmission signal from among the plurality of antennas (eg, the plurality of antennas 441 to 444 of FIG. 4 ) to the first antenna 441 . Antenna switching may be performed to change from to the second antenna (the second antenna 442 of FIG. 4 ). For example, the electronic device 101 may switch an antenna for transmitting a transmission signal from a first antenna to a second antenna satisfying a specified condition.

According to various embodiments, in operation 905 , the electronic device 101 may check the second RSRP value of the switched second antenna 442 . For example, the second RSRP value may be an RSRP value measured based on the second antenna 442 .

According to various embodiments, in operation 907 , the electronic device 101 may measure the second downlink passloss by using the second RSRP value. For example, the electronic device 101 may measure the second downlink passloss by using Equation (4).

According to various embodiments, in operation 909 , the electronic device 101 may determine the strength of the second transmission power of the RF signal input to the second antenna 442 based on the second downlink pathloss. The electronic device 101 may transmit an RF signal having the second transmission power to the second antenna 442 to transmit the transmission signal to the communication network.

10 is a diagram for explaining that an electronic device performs antenna switching according to various embodiments of the present disclosure; 11 is a diagram illustrating transmit power corresponding to RSRP measured based on each of a plurality of antennas according to various embodiments.

10 and 11 , the electronic device 101 may transmit a transmission signal to a communication network through the first antenna 441 . For example, the electronic device 101 may check the first RSRP value (eg, -115 dBM) measured based on the first antenna 441 and measure the first downlink passloss based on the first RSRP value. have. The electronic device 101 may apply an RF signal having a first transmission power (eg, 20 dBM) to the first antenna 441 based on the first downlink passloss.

According to various embodiments of the present disclosure, the electronic device 101 may receive a reference signal from a communication network and check RSRP values of each of the plurality of antennas 441 to 444 based on the received reference signal. The electronic device 101 may identify an antenna that satisfies a specified condition for antenna switching among the plurality of antennas 441 to 444 . For example, the electronic device 101 includes the antennas (eg, the second antenna 442 and the fourth antenna (eg, the second antenna 442 ) and the fourth antenna ( 444)) can be found. For example, the electronic device 101 may determine a fourth antenna 444 having a high RSRP value among the second antenna 442 and the fourth antenna 444 as a switching antenna.

According to various embodiments, the electronic device 101 may check the first downlink passloss corresponding to the first RSRP. The electronic device 101 sets the difference (eg, 50 dBM) between the first RSRP value of the first antenna 441 (eg, -115 dBM) and the fourth RSRP value (eg, -65 dBM) of the fourth antenna 444 . ) may be determined as an offset value for the first downlink passloss. For example, the electronic device 101 adds a difference (eg, 50 dBM) between the first RSRP value of the first antenna and the fourth RSRP value of the fourth antenna to the first downlink passloss for the fourth antenna 444 . A fourth downlink passloss (eg, a downlink passloss between the electronic device 101 and the network based on the fourth antenna 444) may be determined. The electronic device 101 may determine the fourth transmission power of the RF signal input to the fourth antenna 444 based on the fourth downlink passloss. For example, the electronic device 101 may increase or decrease the transmission power of the RF signal by a difference in power corresponding to the fourth transmission power from the existing first transmission power (eg, 20 dBM). The electronic device 101 may transmit an RF signal having the fourth transmission power to the fourth antenna 444 to transmit the transmission signal to the communication network. According to another embodiment, the electronic device 101 may determine the second antenna 442 among the second antenna 442 and the fourth antenna 444 as the antenna to be switched. The electronic device 101 calculates the difference (eg, 30 dBM) between the first RSRP value (eg, -115 dBM) of the first antenna and the second RSRP value (eg, -85 dBM) of the second antenna in the first downlink It can be determined as an offset value for the pass loss. For example, the electronic device 101 adds the difference (eg, 30 dBM) between the first RSRP value of the first antenna 441 and the second RSRP value of the second antenna 442 to the first downlink passloss to obtain a second A second downlink path loss for the antenna 442 (eg, a downlink path loss between the electronic device 101 and the network based on the second antenna 442) may be determined. The electronic device 101 may determine the second transmission power of the RF signal input to the second antenna 442 based on the second downlink pass loss. For example, the electronic device 101 may increase or decrease the transmission power by a difference in power corresponding to the fourth transmission power from the existing first transmission power (eg, 20 dBM).

According to various embodiments, after antenna switching is performed to the fourth antenna 444 , the electronic device 101 may check a fourth RSRP (eg, -65 dBM) for the fourth antenna. The electronic device 101 may measure the fourth downlink passloss for the fourth antenna 444 based on the fourth RSRP. That is, the electronic device 101 may measure the fourth downlink passloss for the fourth antenna 444 based on the fourth RSRP without checking the difference between the first RSRP and the fourth RSRP. The electronic device 101 may determine the fourth transmission power input to the fourth antenna 444 based on the fourth downlink passloss. The electronic device 101 may transmit an RF signal having the fourth transmission power to the fourth antenna 444 to transmit the transmission signal to the communication network. According to another embodiment, the electronic device 101 may determine the second antenna 442 among the second antenna 442 and the fourth antenna 444 as the antenna to be switched. The electronic device 101 may measure the second downlink passloss for the second antenna 442 based on the second RSRP. The electronic device 101 may determine the second transmission power of the RF signal input to the second antenna 442 based on the second downlink passloss.

According to various embodiments, the at least one processor is configured to measure the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna with the electronic device measured based on the first antenna It may be configured to be determined as an offset for a first downlink pathloss between networks.

According to various embodiments, the at least one processor may be configured to apply the offset to the first downlink passloss to check the second downlink passloss for the second antenna.

According to various embodiments, the at least one processor may be configured to determine the strength of the transmission power of the RF signal input to the second antenna, based on the second downlink passloss.

According to various embodiments, the at least one processor monitors the RSRP value of each of the plurality of antennas, and when the first antenna and the second antenna satisfy a specified condition based on the monitoring result, the It may be configured to perform antenna switching.

According to various embodiments, the at least one processor may be configured to perform the antenna switching when the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is greater than a specified threshold value. have.

According to various embodiments, the electronic device includes at least one switch for changing a transmission path corresponding to the plurality of antennas, and the at least one processor changes from the first antenna to the second antenna. When it is confirmed that the antenna switching is to be performed, it may be configured to change the transmission path of the transmission signal by controlling the at least one switch.

According to various embodiments, the at least one processor may include a communication processor.

According to various embodiments, the transmission signal may include at least one of transmission signals corresponding to PUSCH, PUCCH, SRS, and RACH.

According to various embodiments, the determining of the intensity of the transmit power may include measuring the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna based on the first antenna. and determining as an offset for a first downlink pathloss between the electronic device and the network.

According to various embodiments, the determining of the transmit power intensity may include applying the offset to the first downlink passloss to check a second downlink passloss for the second antenna. have.

According to various embodiments, the determining of the intensity of the transmit power includes determining the intensity of the transmit power of the RF signal input to the second antenna based on the second downlink path loss. can do.

According to various embodiments of the present disclosure, in the method of operating an electronic device, when the first antenna and the second antenna satisfy a specified condition based on the operation of monitoring the RSRP value of each of the plurality of antennas and the monitoring result, The method may further include performing the antenna switching.

According to various embodiments, the performing of the antenna switching may include performing the antenna switching when the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is greater than a specified threshold value. It may include an action to

According to various embodiments, when it is confirmed that the antenna switching to change from the first antenna to the second antenna is to be performed, controlling at least one switch included in the electronic device to change the transmission path of the transmission signal It may further include an action.

According to various embodiments, the at least one processor monitors the RSRP value of each of the plurality of antennas, and a difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is designated If it is greater than the threshold, it may be configured to perform the antenna switching.

The at least one processor may be configured to measure the second download pass loss based on the reference signal power and the second RSRP stored in advance in the electronic device or received from the network.

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 portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to 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 of which may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is "coupled" or "connected" to another (eg, 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.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as 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 one or more instructions stored in a storage medium (eg, the internal memory 136 or the external memory 138) readable by a machine (eg, the electronic device 101). may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) 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 called at least one command. 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 contain a signal (eg, electromagnetic wave), and this term refers to the case 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 through 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 portion 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, and some of the plurality of entities may be separately disposed in other components. have. 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,

a plurality of antennas; and

at least one processor, the at least one processor comprising:

Based on a reference signal received power (RSRP) value corresponding to each of the plurality of antennas, an antenna for transmitting a transmission signal among the plurality of antennas is changed from a first antenna to a second antenna Check whether to perform antenna switching,

When the antenna switching is performed, the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is checked;

The electronic device is configured to determine the strength of transmission power of the RF signal input to the second antenna based on the difference.
The method of claim 1, wherein the at least one processor comprises:

The difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is calculated based on the first antenna as a first downlink pathloss between the electronic device and the network. An electronic device set to determine an offset for
The method of claim 2, wherein the at least one processor comprises:

The electronic device is configured to apply the offset to the first downlink passloss to check a second downlink passloss for the second antenna.
The method of claim 3, wherein the at least one processor comprises:

The electronic device is configured to determine the strength of the transmission power of the RF signal input to the second antenna, based on the second downlink pass loss.
The method of claim 1, wherein the at least one processor comprises:

monitoring the RSRP value of each of the plurality of antennas;

The electronic device is configured to perform the antenna switching when the first antenna and the second antenna satisfy a specified condition based on the monitoring result.
The method of claim 5, wherein the at least one processor comprises:

The electronic device configured to perform the antenna switching when the difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is greater than a specified threshold value.
According to claim 1,

The electronic device includes at least one switch for changing a transmission path corresponding to the plurality of antennas,

The at least one processor is configured to change the transmission path of the transmission signal by controlling the at least one switch when it is determined that the antenna switching is to be performed from the first antenna to the second antenna.
According to claim 1,

The at least one processor is an electronic device including a communication processor.
According to claim 1,

The transmission signal includes at least one of transmission signals corresponding to PUSCH, PUCCH, SRS, and RACH.
A method of operating an electronic device, comprising:

Based on a reference signal received power (RSRP) value corresponding to each of the plurality of antennas included in the electronic device, an antenna for transmitting a transmission signal from among the plurality of antennas is selected from the first antenna determining whether to perform antenna switching to change to two antennas;

checking a difference between a first RSRP value of the first antenna and a second RSRP value of the second antenna when the antenna switching is performed; and

and determining the strength of transmission power of the RF signal input to the second antenna based on the difference.
The method of claim 10, wherein the determining of the transmit power comprises:

The difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is calculated based on the first antenna as a first downlink pathloss between the electronic device and the network. A method of operating an electronic device, comprising determining an offset for the electronic device.
The method of claim 11 , wherein the determining of the transmit power comprises:

and checking a second downlink passloss with respect to the second antenna by applying the offset to the first downlink passloss.
In an electronic device,

a plurality of antennas; and

at least one processor, the at least one processor comprising:

A first downlink pathloss between the electronic device and the network using a first reference signal received power (RSRP) value measured based on a first antenna among the plurality of antennas ) and check

Check the first transmission power of the RF signal input to the first antenna based on the first downlink pass loss, and control the RF signal of the first transmission power to be input to the first antenna to the first antenna Transmitting a transmission signal through

Based on the second RSRP value measured based on the second antenna among the plurality of antennas and the first RSRP value satisfy a specified condition, an antenna for transmitting a transmission signal among the plurality of antennas is selected from the first antenna to the second antenna Check whether to perform antenna switching to change to

When the antenna switching is performed, a second downlink pathloss between the electronic device and the network is checked using the second RSRP value,

Checking the second transmission power of the RF signal input to the second antenna based on the second downlink pass loss, and controlling the RF signal of the second transmission power to be input to the second antenna, the second An electronic device configured to transmit a transmission signal through an antenna.
The method of claim 13, wherein the at least one processor comprises:

monitoring the RSRP value of each of the plurality of antennas;

The electronic device configured to perform the antenna switching when a difference between the first RSRP value of the first antenna and the second RSRP value of the second antenna is greater than a specified threshold value.
The method of claim 13, wherein the at least one processor comprises:

An electronic device configured to measure the second download pass loss based on the reference signal power and the second RSRP stored in advance in the electronic device or received from the network.