KR20210016679A - Method and electronic device for controlling transmission power of wireless signal - Google Patents

Abstract

An objective of the present invention is to provide a control method and an electronic device using the same which can prevent the sum of power used by signals transmitted to communication systems from exceeding the sum of power which can be used by an electronic device. According to various embodiments of the present invention, the electronic device comprises: a first communication processor (CP) based on a first radio access technology (RAT); a second communication processor based on a second radio access technology; and a plurality of antennas operatively connected to the first CP and the second CP. The first CP can communicate with a first base station (BS) using the first RAT based on a first frequency band, identify a first distance between the first base station and the electronic device while communicating with the first base station, identify a second base station using the second RAT based on a second frequency band different from the first frequency band by using the second CP while communicating with the first base station, identify a second distance between the second base station and the electronic device in response to identification of the second base station, acquire first maximum power associated with the first CP and second maximum power associated with the second CP based on at least one among the first distance, the first frequency band, the second distance, and the second frequency band, and transmit information associated with the second maximum power to the second CP in response to acquisition of the second maximum power.

Description

A method of controlling the transmission power of a radio signal and an electronic device thereof TECHNICAL FIELD

Various embodiments to be described later relate to a method of controlling transmission power of a radio signal transmitted through at least one antenna in an electronic device, and to the electronic device.

With the recent development of digital technology, various types of electronics such as mobile communication terminals, smart phones, tablet PCs (personal computers), electronic notebooks, personal digital assistants (PDAs), wearable devices, etc. The device is widely used. The electronic device may be connected to a communication network such as the Internet. Efforts have been made to develop an improved 5G (5th generation) communication system or a pre-5G communication system in order to meet the increasing demand for wireless data traffic after the commercialization of 4G (4th generation) communication systems. For this reason, the 5G communication system or the pre-5G communication system is called a Beyond 4G Network communication system or a Long Term Evolution (LTE) system (Post LTE) system.

In order to achieve a high data rate, the 5G communication system is considered to be implemented in an ultra high frequency (mmWave) band (eg, 6 GHz to 200 GHz band). In order to mitigate the path loss of radio waves in the ultra-high frequency band and increase the transmission distance of radio waves, in 5G communication systems, beamforming, massive MIMO, and Full Dimensional MIMO (FD-MIMO) ), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

In addition, in order to improve the network of the system, in 5G communication system, advanced small cell, advanced small cell, cloud radio access network (cloud RAN), ultra-dense network , Device to Device communication (D2D), wireless backhaul, moving network, cooperative communication, CoMP (Coordinated Multi-Points), and interference cancellation And other technologies are being developed.

In addition, discussion and standardization of EN-DC (E-UTRA new radio-dual connectivity) in which a 4G communication system and a 5G communication system are simultaneously supported by a terminal are being made.

When an electronic device simultaneously accesses different communication systems (e.g., 4G communication system and 5G communication system), such as in an EN-DC environment, the sum of the power the electronic device can use for wireless signal transmission is determined and In this case, it is necessary to manage the sum of the transmit power that can be used by the signal transmitted to each communication system not exceeding this total. However, since the electronic device is configured with separate circuits for different communication systems, real-time information transmission between circuits for different communication systems is not possible, so the sum of power used by signals transmitted to each communication system is the electronic device. A control method may be needed to ensure that the total amount of available power is not exceeded.

Various embodiments of the present disclosure may provide a control method in which the sum of power used by a signal transmitted to each communication system does not exceed the sum of power that can be used by the electronic device, and an electronic device using the method.

The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

An electronic device according to various embodiments may include a first communication processor (CP) based on a first radio access technology (RAT), and a second communication processor (CP) based on a second wireless access technology. A first base station comprising a communication processor and a plurality of antennas operatively connected to the first CP and the second CP, wherein the first CP is a first base station using the first RAT based on a first frequency band (Base Station, BS) and in a state of communicating with the first base station, identifying a first distance between the first base station and the electronic device, and in a state of communicating with the first base station, the second Identifying a second base station using the second RAT based on a second frequency band different from the first frequency band using a CP, and in response to the identification of the second base station, between the second base station and the electronic device Identify a second distance of, and based on at least one of the first distance, the first frequency band, the second distance, or the second frequency band, a first maximum power associated with the first CP and the second A second maximum power related to a CP may be acquired, and information related to the second maximum power may be transmitted to the second CP in response to the acquisition of the second maximum power.

The method of an electronic device according to various embodiments of the present disclosure includes using a first communication processor (CP) based on a first radio access technology (RAT), in a first frequency band. Based on the operation of communicating with a first base station (BS) using the first RAT, identifying a first distance between the first base station and the electronic device in a state of communicating with the first base station, In the state of communicating with the first base station, using a second CP differentiated from the first CP, identifying a second base station using the second RAT based on a second frequency band different from the first frequency band Operation, in response to identification of the second base station, identifying a second distance between the second base station and the electronic device, the first distance, the first frequency band, the second distance, or the second frequency Based on at least one of the bands, an operation of obtaining a first maximum power related to the first CP and a second maximum power related to the second CP using the first CP, and responding to the acquisition of the second maximum power Thus, the operation of transmitting information related to the second maximum power from the first CP to the second CP may be included.

An electronic device and a method thereof according to various embodiments include controlling the power intensity of signals transmitted according to a plurality of communication systems, so that the sum of the transmission power for each communication system is the sum of the power that can be used by the electronic device. It has the effect of not exceeding.

The effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the technical field to which the present disclosure belongs from the following description. will be.

1 is a block diagram of an electronic device in a network environment, according to various embodiments.
2 is a block diagram of an electronic device in a network environment including a plurality of cellular networks, according to various embodiments.
3A to 3C are diagrams illustrating wireless communication systems providing a network of legacy communication and/or 5G communication according to various embodiments.
4A and 4B are block diagrams of electronic devices according to various embodiments.
5 is a flowchart illustrating an operation of an electronic device according to various embodiments.
6A and 6B are exemplary diagrams for describing an operation of connecting an electronic device with a plurality of base stations according to various embodiments.
7 is a flowchart illustrating an operation of an electronic device according to various embodiments.
8 is a flowchart illustrating an operation of an electronic device according to various embodiments.
9 is a flowchart illustrating an operation of an electronic device according to various embodiments.
10 is a flowchart illustrating an operation of an electronic device according to various embodiments.
11 is a flowchart illustrating an operation of an electronic device according to various embodiments.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. However, for convenience of description, in the drawings, the size of components may be exaggerated or reduced. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and the present invention is not necessarily limited to what is shown.

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

The processor 120, for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 may store commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. The command or data stored in the volatile memory 132 may be processed, and result data may be stored in the nonvolatile memory 134. According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 (eg, a central processing unit or an application processor). , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use less power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.

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

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

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

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

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

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

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

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric 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 designated protocols that may be used for the electronic device 101 to connect directly or wirelessly 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 a user can perceive through a tactile or motor 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 a still image and a video. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101. According to an embodiment, the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

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

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

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

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

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the electronic devices 102 and 104 may be a device of the same or different type as the electronic device 101. According to an embodiment, all or part of the operations executed by the electronic device 101 may be executed by one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 does not execute the function or service by itself. In addition or in addition, it is possible to request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the execution result to the electronic device 101. The electronic device 101 may process the result as it is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology Can be used.

2 is a block diagram 200 of an electronic device 101 in a network environment including a plurality of cellular networks, according to various embodiments. Referring to FIG. 2, 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, a fourth RFIC 228, a first radio frequency front end (RFFE) 232, a second RFFE 234, a first antenna module 242, a second antenna module 244, and an antenna (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 of the components illustrated in FIG. 1, and the second network 199 may further include at least one other network. According to an embodiment, the first communication processor 212, the second communication processor 214, the first RFIC 222, the second RFIC 224, the fourth RFIC 228, the 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 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 communication of a legacy network 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. Can support communication. 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 establish a communication channel to communicate with, and support 5G network communication through the established communication channel. According to an 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 auxiliary processor 123, or the communication module 190. have. According to an embodiment, the first communication processor 212 and the second communication processor 214 are directly or indirectly connected to each other by an interface (not shown) to provide data or control signals in either or both directions. Can offer or receive.

The first RFIC 222, when transmitting, transmits a baseband signal generated by the first communication processor 212 to about 700 MHz used for the first cellular network 292 (eg, a legacy network). It can be converted into a 3GHz radio frequency (RF) signal. Upon reception, an RF signal is obtained from the first cellular network 292 (eg, a legacy network) through an antenna (eg, the first antenna module 242), and an RFFE (eg, the first RFFE 232) is It can be preprocessed through. The first RFIC 222 may convert the preprocessed RF signal into a baseband signal so that it can 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 (for example, a 5G network). It can be converted into an RF signal (hereinafter, referred to as 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). Upon reception, a 5G Sub6 RF signal is obtained from the second cellular network 294 (eg, 5G network) through an antenna (eg, the second antenna module 244), and RFFE (eg, the second RFFE 234). ) Can be pretreated. The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal so that it can 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, 5G Above6 RF signal). Upon reception, a 5G Above6 RF signal may be obtained from the second cellular network 294 (eg, 5G network) through an antenna (eg, antenna 248) and preprocessed through the 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 a fourth RFIC 228 separately or at least as 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 transferred to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, the 5G Above6 RF signal may be received from the second cellular network 294 (eg, 5G network) through an antenna (eg, antenna 248) and converted into an IF signal by the third RFIC 226. have. The fourth RFIC 228 may convert the IF signal into a baseband signal so that the second communication processor 214 can process it.

According to an embodiment, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least part of a single package. According to an embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least part of a single package. According to an embodiment, at least one of the first antenna module 242 or the second antenna module 244 may be omitted or 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 a first substrate (eg, a main PCB). In this case, the third RFIC 226 is located in a partial area (eg, lower surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is disposed in another area (eg, upper surface). Is disposed, a third antenna module 246 may be formed. By arranging 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 can reduce loss (eg, attenuation) of a signal in a high-frequency band (eg, about 6 GHz to about 60 GHz) used for communication in a 5G network, for example. Accordingly, the electronic device 101 may improve the quality or speed of communication with the second cellular 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 can be used for beamforming. In this case, the third RFIC 226 may include, for example, a plurality of phase shifters 238 corresponding to a plurality of antenna elements as part of the third RFFE 236. During transmission, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, the base station of the 5G network) through a corresponding antenna element. . Upon reception, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside into the same or substantially the same phase through a corresponding antenna element. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

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

3A to 3C are diagrams illustrating wireless communication systems providing a network of legacy communication and/or 5G communication according to various embodiments. 3A to 3C, the network environments 100A to 100C 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 (e.g., eNB (eNodeB)) of a 3GPP standard supporting wireless access with the electronic device 101 and an evolved packet (EPC) that manages 4G communication. core) 351 may be included. The 5G network, for example, manages 5G communication between the electronic device 101 and the New Radio (NR) base station 350 (eg, gNB (gNodeB)) and the electronic device 101 supporting wireless access. It may include a 5GC (352) (5th generation core).

According to various embodiments, the electronic device 101 may transmit and 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 It may include. The user data may mean, for example, user data excluding a control message transmitted and 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 portion of a legacy network (eg, LTE base station 340, EPC 342) to at least a portion of a 5G network (eg: At least one of a control message or user data may be transmitted and received with the NR base station 350 and the 5GC 352.

According to various embodiments, the network environment 100A provides wireless communication dual connectivity (multi-RAT (radio access technology) dual connectivity, MR-DC) to the LTE base station 340 and the NR base station 350, and the EPC A network environment in which control messages are transmitted and received with the electronic device 101 through one of the core networks 330 of 342 or 5GC 352 may be included.

According to various embodiments, in an MR-DC environment, one of the LTE base stations 340 or NR base stations 350 operates as a master node (MN) 310 and the other is a secondary node (SN) 320 Can be operated as The MN 310 may be connected to the core network 330 to transmit and receive control messages. The MN 310 and the SN 320 may be connected through a network interface to transmit and receive messages related to radio resource (eg, communication channel) management.

According to various embodiments, the MN 310 may be configured as an LTE base station 340, the SN 320 may be configured as an NR base station 350, and the core network 330 may be configured as an EPC 342 (for example, EN-DC ( E-UTRA NR dual connectivity)). For example, the electronic device 101 may transmit and receive control messages through the LTE base station 340 and the EPC 342, and transmit and receive user data through the LTE base station 340 and the NR base station 350.

According to another embodiment, the MN 310 may be configured as an NR base station 350, the SN 320 may be configured as an LTE base station 340, and the core network 330 may be configured as a 5GC 352 (e.g., NE-DC ( NR E_UTRA dual connectivity)). For example, the electronic device 101 may transmit and receive control messages through the NR base station 350 and the 5GC 352, and may transmit and receive user data through the LTE base station 340 and the NR base station 350.

Referring to FIG. 3B, according to various embodiments, the 5G network may independently transmit and receive control messages and user data with the electronic device 101.

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

According to various embodiments, the electronic device 101 may be registered with at least one of the EPC 342 and the 5GC 352 to transmit and 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 and received through an interface between the EPC 342 and the 5GC 352.

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

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or a plurality of the items unless clearly indicated otherwise in a related context. In this document, “A or B”, “at least one of A and B”, “at least one of A or B,” “A, B or C,” “at least one of A, B and C,” and “A Each of phrases such as "at least one of, B, or C" 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 be used simply to distinguish the component from other corresponding components, and the components may be referred to in other aspects (eg, importance or Order) is not limited. Some (eg, a first) component is referred to as “coupled” or “connected” with or without the terms “functionally” or “communicatively” to another (eg, second) component. When mentioned, it means that any of the above components can be connected to the other components directly (eg by wire), wirelessly, or via a third component.

The term "module" used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof 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, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (for example, the program 140) including them. For example, the processor (eg, the processor 120) of the device (eg, the electronic device 101) may call and execute at least one command among one or more commands stored from a storage medium. This makes it possible for the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transient' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic wave), and this term refers to the case where data is semi-permanently stored in the storage medium. It does not distinguish between temporary storage cases.

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

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

4A and 4B are block diagrams of an electronic device 101 according to various embodiments. The electronic device 101 of FIGS. 4A and 4B may correspond to the electronic device 101 of FIGS. 1 to 2 and 3A to 3B, and may show a configuration necessary to describe embodiments of the present invention. have.

In the embodiment of FIG. 4A, the electronic device 101 includes a processor 120, a first communication processor (CP) 212, a second CP 214, a first RFIC 222, and a second RFIC. 224, a first RFFE 232, a second RFFE 234, an antenna tuner 410, a first antenna 242, and a second antenna 244. In another embodiment of FIG. 4B, the electronic device 101 may include only one CP 216 instead of separate CPs of the first CP 212 and the second CP 214, and The CP 216 may support a plurality of communication methods. In another embodiment, the electronic device may have separate antenna tuners for the first antenna 242 and the second antenna 244.

At least one of the hardware components included in the electronic device 101 of FIGS. 4A and 4B may correspond to a hardware component included in the electronic device 101 of FIGS. 1 to 2. For example, the processor 120 may correspond to the processor 120 of FIGS. 1 to 2. For example, the first CP 212, the second CP 214, the first RFIC 222, the second RFIC 224, the first RFFE 232, the second RFFE 234, the first antenna ( 242) and the second antenna 244 are the first CP 212, the second CP 214, the first RFIC 222, the second RFIC 224, the first RFFE 232, the second It may correspond to each of the RFFE 234, the first antenna 242, and the second antenna 244.

According to various embodiments, the processor 120 of the electronic device 101 may execute one or more instructions stored in the memory 130. The processor 120 may include at least one of a circuit for processing data, for example, an IC (Integrated Circuit), an Arithmetic Logic Unit (ALU), a Field Programmable Gate Array (FPGA), and a Large Scale Integration (LSI). have. The memory 130 may store data related to the electronic device 101. The memory 130 may include a volatile memory such as a static random access memory (SRAM) or a random access memory (RAM) including a dynamic RAM (DRAM), or a read only memory (ROM), a magnetic RAM (MRAM), or a STT. -MRAM (Spin-Transfer Torque MRAM), PRAM (Phase-change RAM), RRAM (Resistive RAM), FeRAM (Ferroelectric RAM), as well as flash memory, eMMC (Embedded Multi Media Card), SSD (Solid State Drive), etc. It may include non-volatile memory.

According to various embodiments, the memory 130 may store an application-related instruction and an operating system (OS)-related instruction. The operating system is system software executed by the processor 120. The processor 120 may manage hardware components included in the electronic device 101 by executing an operating system. The operating system can provide an application programming interface (API) with applications that are software other than system software.

According to various embodiments, one or more applications, which are a set of a plurality of instructions, may be installed in the memory 130. That the application is installed in the memory 130 may mean that the application is stored in a format that can be executed by the processor 120 connected to the memory 130.

According to various embodiments, the third CP 216, the first CP 212, and the second CP 214 are Bluetooth, WiFi (Wireless Fidelity), NFC (Near Field Communication), LTE (Long Term). Evolution), the electronic device 101 can be connected to at least one core network 450 based on a wireless network such as NR (New Radio) and/or a wired network such as LAN (Local Area Network) and Ethernet. have. The third CP 216, the first CP 212, and the second CP 214 may include a communication circuit and/or a communication interface supporting the wireless network and/or the wired network.

In an embodiment, each of the third CP 216, the first CP 212 and the second CP 214 may be connected to one or more transmission/reception paths (eg, RFIC and/or RFFE). When one specific CP (216, 212 or 214) is connected to a plurality of transmission/reception paths, the plurality of transmission/reception paths must simultaneously use a plurality of transmission paths such as, for example, UPLINK Carrier-Aggregation (CA). Can be activated simultaneously in the state. When each of the first CP 212 and the second CP 214 is connected to a plurality of transmission paths, each of the first CP 212 and the second CP 214 is transmitted through an associated transmission path and/or an antenna. You can limit the power of the signal. For example, each of the first CP 212 and the second CP 214 has an associated transmission path and/or such that the sum of the powers of the signals transmitted through the plurality of transmission paths and antennas remains below a specified power threshold of the electronic device. Alternatively, the power of the signal transmitted through the antenna may be limited. Hereinafter, the description will be made based on the embodiment of FIG. 4A including the first CP 212 and the second CP 214, but the third CP 216 includes the first CP 212 and the second CP 214. As an integrated one, it is possible to perform both the functions of the first CP 212 and the second CP 214, so that the first CP 212 and the second CP 214 are replaced with the third CP 216 in the following description. Can be.

In an embodiment, the electronic device 101 is a device used by a user and may communicate with the first base station 442 and/or the second base station 444 through a wired channel and/or a wireless channel. For example, the electronic device 101 can operate without the user's involvement. For example, the electronic device 101 is a device that performs machine type communication (MTC), and may be a device carried by a user. Here, the electronic device 101 is a terminal other than'user equipment (UE)','mobile station','subscriber station','remote terminal', It may be referred to as'wireless terminal','electronic device', or'user device', or other terms having an equivalent technical meaning. In one embodiment, in order to connect the electronic device 101 to at least one core network 450, each of the first CP 212 and the second CP 214 is a first base station 442 and a second base station ( 444).

In one embodiment, the first base station 442 and the second base station 444 provide wireless access in a cellular communication method to one or more electronic devices (eg, electronic devices 101) existing within coverage. It may mean an infrastructure to be implemented. Coverage (eg, coverage of the first base station 442) may mean a geographic area that is distinguished by a distance at which a base station (eg, the first base station 442) can transmit a radio signal. . Wireless access may mean access to a cellular network or a mobile network. The first base station 442 and the second base station 444 may provide a service to one or more electronic devices within coverage (or cell). For example, the electronic device 101 may be connected to the Internet through the first base station 442 and through the core network 450 of a mobile communication service provider.

In one embodiment, the first base station 442 and/or the second base station 444 are'inode ratio (eNodeB, eNB)', '5G node (5th generation node)', '5G node ratio (5G NodeB, gNB)','transmission/reception point (TRP)', or another term having an equivalent technical meaning. Hereinafter, the first base station 442 is described based on the eNB supporting the LTE communication system, and the second base station 444 is described based on the gNB supporting the NR communication system, but is not limited thereto.

In one embodiment, in a state in which the first base station 442 supports LTE radio communication and the second base station 444 supports NR radio communication, the NR radio communication is NSA (Non Stand-Alone) or SA ( It can be operated based on the Stand-Alone) method. The second base station 444 based on the NSA scheme may operate at least partially dependent on the first base station 442. For example, the second base station 444 is based on the control message of the electronic device 101 and/or the core network 450 (eg, EPC) transmitted and received through the first base station 442. ) And NR wireless communication. The NR radio communication based on the SA scheme can be operated independently from the LTE radio communication. For example, the second base station 444 may be connected to the electronic device 101 and the core network 450 (eg, 5GC) to transmit and receive a control message.

In one embodiment, in order to transmit and/or receive a radio signal with the first base station 442 and the second base station 444, the first CP 212 and the second CP 214 transmit and/or receive a radio signal. Or hardware components that can receive (e.g., first RFIC 222, first RFFE 232, first antenna 242, second RFIC 224, second RFFE 234, second antenna 244 and an antenna tuner 410 may be further included, or may be connected to the hardware component. Although not shown, each of the first RFFE 232 and the second RFFE 234 may include a transmission filter, a reception filter, an amplifier, and a mixer, and the first RFIC 222 and the second RFIC 214 ) Each may include an oscillator, and each of the first CP 212 and the second CP 214 may further include or be connected to a digital to analog convertor (DAC) and an analog to digital convertor (ADC). have.

In one embodiment, each of the first antenna 242 and the second antenna 244 is composed of one antenna element, but in another embodiment, the first antenna 242 and the second antenna 244 At least one of them may be composed of a plurality of antenna elements to form an array antenna. In terms of hardware, the hardware components may be composed of a digital unit and an analog unit, and the analog unit is composed of a plurality of sub-units according to operation power, operation frequency, etc. Can be.

In one embodiment, the antenna tuner 410 includes one or more antennas included in the electronic device 101 (eg, the first antenna 242 and the second antenna 244 in the embodiment of FIGS. 4A and 4B) It is possible to perform impedance matching and/or adjustment of the operating frequency of. The antenna tuner 410 may adjust the operating frequency and/or perform the impedance matching based on control information received from the first CP 212 and/or the second CP 214. The antenna tuner 410 may adjust the operating frequencies of the first antenna 242 and the second antenna 244 based on, for example, an antenna tuning code, and/or perform impedance matching. The antenna tuning code is information previously stored in the antenna tuner 410 and may be selected by the first CP 212 and/or the second CP 214.

In one embodiment, each of the first CP 212 and the second CP 214 may process radio signals of one or more frequency bands. The radio signal may be based on at least one of a cellular communication method or a non-cellular communication method. For example, the first CP 212 may process a radio signal based on an LTE communication method. For example, the second CP 214 may process a radio signal based on an NR communication method. For example, the one or more frequency bands may include a super high frequency (SHF) (eg, 2.5GHz, 5Ghz) band, and a millimeter wave (eg, 60GHz) band. For example, the one or more frequency bands may be included in a high frequency band of 1 GHz or more, or a low frequency band of less than 1 GHz. Various embodiments are not limited to the above-described embodiment. For example, the first CP 212 and the second CP 214 may support the same radio access technology. The first CP 212 and the second CP 214 may support frequency bands other than the SHF band and/or the mm wave band.

In one embodiment, the cellular network may mean a wireless network allocated to a specific network operator and provided from the corresponding operator. The cellular network may refer to a wireless network using a licensed band. In one embodiment, the non-cellular network may mean a wireless network that is not monopolized by a specific network operator. The non-cellular network may mean a wireless network using a non-licensed band.

As described above, the first CP 212 and the second CP 214 may support different radio access technologies (RAT). For example, the first RAT supported by the first CP 212 is global system for mobile communications (GSM), code division multiple access (CDMA), wide CDMA (WCDMA), high speed packet access (HSPA), HSPA+ , WiMAX (worldwide interoperability for Microwave Access, WiMAX), may be LTE or LTE-A. For example, the second RAT supported by the second CP 214 may be 3GPP 5G (eg, NR).

In one embodiment, the first CP 212 and the second CP 214 may transmit and/or receive radio signals. All of the CP and the hardware components connected to the CP (e.g., the first CP 212 and the first RFIC 222, the first RFFE 232 and the first antenna 242 connected to the first CP 212) Alternatively, some may be referred to as'transmitting unit','receiving unit', or'transmitting/receiving unit'. In addition, in the following description, transmission and reception performed through a wireless channel may be used to mean that the above-described processing is performed by the first CP 212 or the second CP 214.

The electronic device 101 according to various embodiments includes a plurality of CPs (eg, the first CP 212 and the second CP 214) and/or a plurality of antennas (eg, a first antenna In a state in which wireless signals are transmitted using 242 and the second antenna 244), power used when transmitting a wireless signal (e.g., transmission power, TX Power) can be managed. have. For example, when transmitting a plurality of radio signals using a plurality of CPs based on different RATs at the same time, the electronic device 101 according to an embodiment is the power used to transmit each of the plurality of radio signals Can be monitored or controlled in real time.

For example, the electronic device 101 including the first CP 212 based on LTE and the second CP 214 based on NR is the first CP 212 through the first antenna 242 When transmitting a second radio signal based on the NR of the second CP 214 through the second antenna 244 while transmitting the first radio signal based on LTE, the electronic device 101 transmits the first radio signal. The first power used to transmit and the second power used to transmit the second radio signal may be monitored and/or controlled in real time. The control of the first power and the second power, for example, does not exceed a specified maximum power (for example, 23 dBm) that the sum of the first power and the second power can be used by the electronic device 101. It may include something that doesn't.

In the electronic device 101 according to an embodiment, the first CP 212 and the second CP 214 are used to transmit wireless signals corresponding to each of the first CP 212 and the second CP 214. By sharing information related to power, it is possible to ensure that the sum of the powers used for transmission of wireless signals does not exceed a specified maximum power. The first CP 212 and the second CP 214 prevent the sum of the powers from exceeding the maximum available power, and the communication channels of the first CP 212 and the second CP 214 are disconnected, data It is possible to minimize throughput and/or QoS (Quality of Service) degradation.

The electronic device 101 according to an embodiment uses powers used to transmit wireless signals corresponding to each of the first CP 212 and the second CP 214, respectively, and the first CP 212 and the second CP ( 214) in at least one of a frequency band corresponding to each, a first distance between the first CP 212 and the first base station 442 or a second distance between the second CP 214 and the second base station 444 Can be obtained based on The electronic device 101 is used to transmit radio signals corresponding to each of the first CP 212 and the second CP 214 based on at least one of the frequency band, the first distance, or the second distance. By controlling power, the electronic device 101 can use power resources more efficiently.

5 is a flowchart 500 illustrating an operation of an electronic device according to various embodiments. The operation of FIG. 5 may be performed by the electronic device 101 of FIGS. 1 to 2, 3A to 3C, and 4A to 4B, for example. For example, it may be performed by the first CP 212 and the second CP 214 of FIG. 4A, the third CP 216 of FIG. 4B and/or the processor 120.

Referring to FIG. 5, in operation 510, the electronic device 101 according to various embodiments includes a first base station (eg, the first base station in FIGS. 4A to 4B) based on a first frequency band. 1 can communicate with the base station 442. In an embodiment, the first CP of the electronic device (eg, the first CP 212 in FIG. 4A) may communicate with the first base station 442 using the first RAT based on the first frequency band. . The first RAT may correspond to Long-Term Evolution (LTE). The first frequency band may include at least one of one or more frequency bands defined by the LTE standard.

In one embodiment, the communication between the first CP 212 and the first base station is that the first CP 212 corresponds to the first CP 212 (for example, the first antenna ( 242)) to transmit or receive a radio signal. The electronic device 101 transmits a transmission signal generated by the first CP 212 to the first RFIC 222 and the second RFFE. It is possible to transmit a wireless signal using a first antenna through a first transmission path including 232. In this case, the power used by the transmitted wireless signal is controlled by controlling the power amplifier included in the first transmission path. The power amplifier may be controlled by the processor 120 or the first CP 212 of the electronic device 101.

Referring to FIG. 5, in operation 520, a first distance between the electronic device first base station 442 and the electronic device 101 according to various embodiments may be identified. In a state of communicating with the first base station 442, the electronic device 101 according to an exemplary embodiment may identify a first distance between the first base station 442 and the electronic device 101. The electronic device 101 is the distance between the first base station 442 and the electronic device 101 based on a method of measuring the distance using various parameters such as a reference signal received power (RSRP) and/or a received signal electric field value. Can be identified. In one embodiment, the electronic device 101 communicates with the first base station 442 using the first CP 212 to determine the location of the first base station 442, for example, the first base station 442 The geographic location of and/or the relative location of the electronic device 101 and the first base station 442 (eg, an azimuth angle and/or a relative distance) may be identified.

Referring to FIG. 5, in operation 530, the electronic device 101 according to various embodiments uses a second CP (eg, the second CP 214 in FIG. 4A) to use a second frequency band. It can be identified that the communication with the 2 base station (eg, the second base station 444 of FIG. 4A). In an embodiment, in a state in which the electronic device 101 communicates with the first base station 442 using the first CP 212, the second terminal of the electronic device 101 is distinguished from the first CP 212. The CP 214 may communicate with the second base station 444 using the second RAT based on a second frequency band different from the first frequency band. The second RAT may correspond to new radio (NR). The second frequency band may include at least one of one or more frequency bands defined by the NR standard. In an embodiment, at least one of the first frequency band and the second frequency band may be included in a frequency band of 1 GHz or higher.

In one embodiment, the communication between the second CP and the second base station is that the second CP uses a second antenna corresponding to the second CP (for example, the second antenna 434 of FIG. 4A). It may include an operation of transmitting or receiving. The electronic device 101 converts the transmission signal generated by the second CP 214 into a wireless signal using a second antenna through a second transmission path including the second RFIC 224 and the second RFFE 234. Can send. In this case, the power used by the transmitted radio signal may be controlled by controlling the power amplifier included in the second transmission path. The power amplifier may be controlled by the processor 120 of the electronic device 101 or the second CP 214.

In one embodiment, the electronic device 101 simultaneously performs communication with the first base station based on the first CP and the second base station based on the second CP, wherein EN-DC (E-UTRA NR-dual connectivity). EN-DC is a plurality of CPs based on different RATs (e.g., a first RAT corresponding to LTE and a second RAT corresponding to NR) (e.g., a first CP and a first CP based on the first RAT) 2 It may refer to a technology for simultaneously connecting to different cellular networks (eg, an LTE communication network based on LTE and an NR communication network based on NR) using a second CP based on 2 RAT).

Referring to FIG. 5, in operation 540, the electronic device 101 according to various embodiments may identify a second distance between the second base station 444 and the electronic device 101. For example, the second CP 214 of the electronic device 101 is based on a method of measuring a distance using various parameters such as RSRP and/or a received signal electric field value, and the second base station 444 and the electronic device The second distance between 101 can be identified. In one embodiment, the electronic device 101 communicates with the second base station 444 using the second CP 214 to A location, for example, a geographical location of the second base station 444 and/or a relative location of the electronic device 101 and the second base station 444 may be identified.

Referring to FIG. 5, in operation 550, the electronic device 101 according to various embodiments calculates a first maximum power related to the first CP 212 and a second maximum power related to the second CP 214. You can decide. The operation 550 may be performed by the processor 120, the first CP 212 and/or the second CP 214 of the electronic device 101. The processor performing the operation 550 may obtain information necessary to perform the operation 550 from another processor. For example, information related to the first distance obtained based on the operation 520 and information related to the second distance obtained based on the operation 540 are displayed in the first CP 212 and the second CP 214. It is transmitted to the processor 120 and the processor 120 may perform the operation 550. In another embodiment, the second CP 214 transfers the information related to the second distance acquired based on the operation 540 to the first CP 212, and the first CP 212 performs the operation 550 Can be done.

In operation 550, the electronic device 101 may determine the first maximum power and the second maximum power. According to an embodiment, the electronic device 101 is based on at least one of the first distance, the first frequency band, the second distance, or the second frequency band, the first maximum power and the second maximum Power can be determined. For example, when the first maximum power is P ₁ and the second maximum power is P ₂ , according to an embodiment, the electronic device 101 may determine P ₁ and P ₂ based on Equation 1 have.

In an embodiment, in Equation 1, the first maximum power P ₁ is the maximum power of the signal transmitted by the first CP based on the first RAT, for example, in the first RAT (eg, LTE). It may represent the maximum value of power that can be used for transmission of the based wireless signal. In Equation 1, the second maximum power P ₂ is the maximum power of the signal transmitted by the second CP based on the second RAT, for example, a radio signal based on the second RAT (eg, NR). It can represent the maximum value of power that can be used for transmission of.

In one embodiment, in Equation 1, P _threshold is a designated power threshold that can be used by the electronic device 101 to transmit a signal, and, for example, the power used by all wireless signals simultaneously transmitted by the electronic device 101 The maximum sum can be expressed. For example, the P _threshold may be 23dBm. In one embodiment, P _threshold is a different numerical value based on the transmission method of the radio signal (for example, frequency division duplexing (FDD) and/or time division duplexing (TDD)). It can be specified as a numeric value). An example of an operation in which the electronic device according to an embodiment sets a P _threshold differently according to a transmission method of a radio signal will be described later with reference to FIG. 10.

In an embodiment where the P _threshold is 23 dBm, before and after the electronic device 101 determines the first maximum power and the second maximum power based on the operation 550, the first maximum power that the first transmission signal can use. And the second maximum power that can be used by the second transmission signal may be changed as shown in Table 1.

LTE only(dBm) EN-DC(dBm) 1st maximum power 23 20 2nd maximum power N/A 20

Referring to Table 1, a first transmission path including a first CP 212 and a first RFIC 222 and a first RFFE 232 according to an embodiment is activated, and the second CP 214 and the second The second transmission path including the RFIC 224 and the second RFFE 234 may be used by a signal transmitted from the first CP of the electronic device 101 according to an exemplary embodiment in a deactivated first state (LTE only). The present first maximum power may be determined to be less than or equal to a specified power threshold P _threshold . The first state may include, for example, a state before the operation 530 is performed in FIG. 5 and/or a state in which EN-DC is deactivated.

Referring to Table 1, in a second state (EN-DC) in which all of the first CP 212, the first transmission path, the second CP, and the second transmission path are activated, according to an embodiment. Accordingly, the electronic device 101 may determine the first maximum power and the second maximum power such that the sum of the first maximum power and the second maximum power is equal to or less than a specified power threshold P _threshold . For example, the electronic device 101 equally determines each of the first maximum power and the second maximum power as 20 dBm, and the sum of the first maximum power and the second maximum power corresponds to a specified power threshold (eg, 23 dBm). Can be made.

The result of determining the first maximum power and the second maximum power by the electronic device 101 is not limited to the example of Table 1, and the first maximum power and the second maximum power may be determined based on different methods according to embodiments. . The first maximum power and the second maximum power may be determined to be the same value (eg, 20 dBm) as shown in Table 1, but the first maximum power and the second maximum power may be determined to be different values according to embodiments. . The electronic device 101 according to an embodiment may calculate the first maximum power and the second maximum power based on the relationship between the first frequency band and the second frequency band and/or the relationship between the first distance and the second distance. You can decide. Various operations in which the electronic device 101 determines the first maximum power and the second maximum power based on the relationship between the first frequency band and the second frequency band and/or the relationship between the first distance and the second distance. Embodiments will be described with reference to FIGS. 7 to 11.

In an embodiment, in operation 560, the electronic device 101 is generated by the first CP 212 based on the first maximum power and transmitted from the first antenna 242 via the first transmission path. The power of the signal can be controlled. In addition, the electronic device 101 may control power of a transmission signal generated by the second CP 212 and transmitted from the second antenna 244 through the second transmission path based on the second maximum power. Control of the power of the transmission signal can be performed by controlling a gain of an amplifier (not shown) included in the transmission path. According to another embodiment, when the first antenna 242 or the second antenna 244 includes a plurality of antenna elements, the power of a transmission signal transmitted through each antenna element is the first maximum power or the second maximum power. The sum of power used by the transmission signal transmitted through each antenna element may be equal to or less than the first maximum power or the second maximum power.

As described above, an embodiment has been described in which the first CP of FIG. 5 corresponds to the first CP 212 of FIG. 4A and the second CP of FIG. 5 corresponds to the second CP 214 of FIG. 4A. , Various embodiments are not limited thereto, and a correspondence relationship may vary according to embodiments. For example, the first CP of FIG. 5 may correspond to the second CP 214 of FIG. 4A and/or a CP for communicating with the NR communication network, and the second CP of FIG. 5 is the first CP of FIG. 4A. (212), and/or may correspond to a CP for communicating with an LTE communication network.

6A to 6B are exemplary diagrams for describing an operation of connecting the electronic device 101 to the plurality of base stations 442 and 444 according to various embodiments. The electronic device 101 of FIGS. 6A to 6B may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3B, and 4A to 4B. In an embodiment, the electronic device 101 of FIGS. 6A to 6B may communicate with the plurality of base stations 442 and 444 by performing at least one of the operations of FIG. 5. The plurality of base stations 442 and 444 of FIGS. 6A to 6B may correspond to each of the plurality of base stations 442 and 444 of FIGS. 4A to 4B.

The electronic device 101 according to an embodiment may be simultaneously connected to the first base station 442 and the second base station 444. For example, the first base station 442 is a base station included in an LTE communication network (eg, an eNB), and the second base station 444 is a base station included in an NR communication network based on an NSA (eg, gNB), the electronic device 101 may simultaneously communicate with the first base station 442 and the second base station 444 in order to access the NR communication network. For example, while registering with the second base station 444, the electronic device 101 may receive information required to communicate with the second base station 444 (eg, a control message) from the first base station 442. I can.

Referring to FIG. 6A, an example in which the electronic device 101, the first base station 442, and the second base station 444 are arranged according to an embodiment is illustrated. As described above, the first base station 442 may be included in the LTE communication network, and the second base station 444 may be included in the NR communication network. The distance 620 between the first base station 442 and the second base station 444 may vary according to geographic locations of the first base station 442 and the second base station 444, respectively. For example, if the network operator deploys the first base station 442 and the second base station 444 in the same location and/or area, the distance 620 is the first base station 442 and the second base station 444 It can have a very small value as it is adjacent. For another example, when the network operator arranges the first base station 442 and the second base station 444 in a location and/or area that are distinct from each other, the distance 620 may have a relatively large value. For example, the network operator may place the first base station 442 and the second base station 444 having different frequency bands in different locations and/or regions based on each frequency band.

The electronic device 101 according to various embodiments may communicate with the first base station 442 based on operation 510 of FIG. 5, for example. The electronic device 101 may identify the first distance 612 between the electronic device 101 and the first base station 442 based on operation 520 of FIG. 5, for example. In a state in which the first base station 442 communicates, the electronic device 101 according to an embodiment provides a second base station 444 based on a RAT (eg, NR) that is distinct from the first base station 442. Can be identified. Identification of the second base station 444 by the electronic device 101 may be performed, for example, based on operation 530 of FIG. 5. In response to the identification of the second base station 444, the electronic device 101 is, for example, based on the operation 540 of FIG. 5, the second distance between the electronic device 101 and the second base station 444 (614) can be identified.

In a state in which the first base station 442 and the second base station 444 are simultaneously communicating, the electronic device 101 according to an embodiment communicates with the first base station 442 based on the operation 550 of FIG. 5. A first maximum power related to and a second maximum power related to communication with the second base station 444 may be determined. For example, the first maximum power and the second maximum power are the first CP for communicating with the processor 120 and the first base station 442 in the electronic device 101 (for example, the first CP ( 212)) or a second CP for communicating with the second base station 444 (eg, the second CP 214 in FIG. 4A ). For example, the first maximum power may represent a maximum value of power that a signal generated by the first CP and transmitted to the first base station 442 can have. The second maximum power is distinguished from the first CP and is generated by the second CP for communicating with the second base station 444 to represent the maximum power value that a signal transmitted to the second base station 444 can have. have.

The electronic device 101 according to an embodiment maintains the first distance in a state in which the sum of the first maximum power and the second maximum power maintains a specified third maximum power (eg, P _{threshold in} Equation 1). (612), based on at least one of a first frequency band used for communication with the first base station 442, a second distance 614, or a second frequency band used for communication with the second base station 444 The first maximum power and the second maximum power may be determined. As an example, when the difference between the first distance from the electronic device 101 to the first base station 442 and the second distance to the second base station 444 is less than a specified distance, the electronic device 101 according to an embodiment ) May determine the first maximum power and the second maximum power based on the first frequency band and the second frequency band.

For example, as the first base station 442 and the second base station 444 are disposed in the same location and/or area, when the distance 620 has a very small value, the electronic device 101 and the first base station Radiation characteristics of the first radio signal transmitted between 442 and the radiation characteristics of the second radio signal transmitted between the electronic device 101 and the second base station 444 are determined by the first frequency band and the second frequency. It can be associated with each of the bands. In this case, the electronic device 101 according to an embodiment may determine the first maximum power and the second maximum power based on the first frequency band and/or the second frequency band.

According to various embodiments, when the difference between the first distance from the electronic device 101 to the first base station 442 and the second distance to the second base station 444 is equal to or greater than a specified distance, the electronic device according to an embodiment 101 may determine a first maximum power and a second maximum power based on the first distance 612 and the second distance 614.

For example, as the first base station 442 and the second base station 444 are disposed in different locations and/or regions, when the distance 620 has a relatively large value, the radiation characteristic of the first radio signal And the radiation characteristics of the second radio signal, respectively, may be related to the first and second frequency bands as well as the first distance 612 and the second distance 614. In this case, the electronic device 101 may determine the first maximum power and the second maximum power based on the first distance 612 and the second distance 614. When determining the first maximum power and the second maximum power based on the first distance 612 and the second distance 614, according to an embodiment, the electronic device 101 includes a first frequency band and a second frequency band. The first maximum power and the second maximum power may be determined further taking into account, and according to another embodiment, the first maximum power and the second maximum power may be determined without considering the first and second frequency bands.

Referring to FIG. 6B, another example in which the electronic device 101, the first base station 442, and the second base station 444 are disposed is illustrated. The second base station 444 included in the NR communication network may be connected to one or more TRPs (eg, a plurality of TRPs 632, 634, 636) disposed in different locations and/or regions. The TRP may cause a terminal such as the electronic device 101 to operate as if it is connected to a base station connected to the TRP. The electronic device 101 may communicate with one of the plurality of TRPs 632, 634, and 636 (for example, the TRP 634) to be connected to the second base station 444.

Even in a state in which communication with the second base station 444 through the TRP 634 as shown in FIG. 6B, the electronic device 101 according to an embodiment is similar to the first base station 442 and the second base station as described in FIG. 6A. Can communicate with 444 at the same time. For example, the electronic device 101 may identify the first distance 612 between the electronic device 101 and the first base station 442 based on operation 520 of FIG. 5. The second distance that the electronic device 101 identifies based on the operation 540 of FIG. 5 is a second distance 614-1 between the TRP 634 and the electronic device 101 that the electronic device 101 communicates with. Can respond. In this case, the electronic device 101 may determine the first maximum power and the second maximum power of the operation 550 based on the first base station 442 and the TRP 634 separated by a distance 620-1. . Hereinafter, the electronic device 101 according to an embodiment is in a first distance between the first base station 442 and the electronic device 101 and a second distance between the second base station 444 and the electronic device 101. Based on this, an operation of determining the first maximum power and the second maximum power will be described with reference to FIG. 7.

7 is a flowchart 700 illustrating an operation of an electronic device according to various embodiments. The electronic device of FIG. 7 may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3C, 4A to 4B, and 6. The operation of FIG. 7 is performed on the processor 120, the first CP 212, the second CP 214 and/or the third CP 216 of the electronic device 101 of FIGS. 4A to 4B. Can be done by

The operation of FIG. 7 may be related to at least one of the operations of FIG. 5. For example, the operation of FIG. 7 may be related to the operation 550 of FIG. 5. In this case, the electronic device 101 is based on the operation 520 of FIG. 5, the first distance between the electronic device and the first base station corresponding to the first CP (eg, the first distance 612 of FIG. 6 ). ), and identifying a second distance between the electronic device and the second base station corresponding to the second CP (eg, the second distance 614 of FIG. 6) based on the operation 540 of FIG. 5 In the state, at least one of the operations of FIG. 7 may be performed.

Referring to FIG. 7, in operation 710, the electronic device 101 according to various embodiments may determine whether the difference between the first distance and the second distance exceeds a specified threshold. As described above, the first distance may mean a distance between the electronic device 101 and the first base station 442 connected through the first CP. The second distance may mean a distance between the electronic device 101 and the second base station 444 connected through the second CP. The electronic device 101 according to an embodiment may obtain information indicating the geographic locations of the first base station and the second base station through operations 520 and 540, and based on the geographic location, the first distance And whether the difference between the second distance exceeds the threshold value. For example, the electronic device 101 may determine whether the first base station 442 and the second base station 444 are disposed at the same location or are disposed at different locations.

When the difference between the first distance and the second distance does not exceed the specified threshold (710-No), in operation 720, the electronic device 101 according to various embodiments includes a first frequency band and a second frequency band. It can be determined whether all of them are below a specified threshold or exceed a threshold. The first frequency band is a frequency band used for wireless communication between the electronic device 101 and the first base station 442, and the second frequency band is a radio frequency band between the electronic device 101 and the second base station 444. It may be a frequency band used for communication. The designated threshold may correspond to a designated frequency (eg, 1 GHz) used to classify whether the frequency band is a high frequency band or a low frequency band.

In an embodiment, when the first base station 442 and the second base station 444 are disposed at the same location, the electronic device 101 determines each of the first frequency band and the second frequency band based on operation 720. It can be compared to a specified threshold.

According to an embodiment, when any one of the first frequency band and the second frequency band is less than a specified threshold and the other exceeds the threshold (720-No), in operation 730, according to various embodiments. The first CP of the electronic device may determine whether the first frequency band exceeds a threshold value. For example, when one of the first frequency band and the second frequency band is included in a low frequency band of less than 1 GHz, and the other of the first frequency band and the second frequency band is included in a high frequency band of 1 GHz or more, one implementation The electronic device 101 according to the example may compare the first frequency band with a threshold value (eg, a designated threshold value of the operation 720) based on the operation 730. In an embodiment, the electronic device 101 may perform the operation 730 based on the second frequency band. For example, the first CP may compare a threshold value and a second frequency band. When only one of the first frequency band and the second frequency band is included in the high frequency band, the electronic device 101 according to an embodiment identifies a frequency band included in the high frequency band from among the first frequency band and the second frequency band. can do.

According to an embodiment, when the first frequency band does not exceed the threshold value (730-No), in operation 750, the electronic device 101 according to various embodiments has the second maximum power being the first maximum. To exceed the power, a first maximum power and a second maximum power may be determined. When the first frequency band does not exceed the threshold, it may mean that the first frequency band is included in the low frequency band and the second frequency band is included in the high frequency band. In this case, a radio signal based on a low frequency band (eg, a first radio signal transmitted to a first base station by a first CP) is a radio signal based on a high frequency band (eg, controlled by a second CP). 2 Since the second radio signal transmitted to the base station) is radiated farther from the same power, the electronic device 101 may determine the second maximum power as a value exceeding the first maximum power. After operation 750, the electronic device 101 according to an embodiment includes the first base station 442 and the second base station 444 based on the first maximum power and the second maximum power determined as in operation 560 of FIG. 5. ), you can control the power of the transmitted signal.

According to an embodiment, as the second maximum power is determined to exceed the first maximum power in operation 750, the power used by the radio signal transmitted from the second CP controlled based on the second maximum power is reduced. It may be greater than the power used by the wireless signal transmitted from 1 CP. Accordingly, a distance from which a radio signal transmitted to the second base station and based on the high frequency band is radiated by the second CP may be relatively increased by the second maximum power. The electronic device 101 according to an exemplary embodiment provides a maximum distance for receiving a first radio signal radiated from a first antenna based on a low frequency band and a second radio signal radiated from a second antenna based on a high frequency band. The first maximum power and the second maximum power may be determined so that the maximum distances that can be received coincide with each other.

According to an embodiment, when the first frequency band exceeds the threshold value (730-Yes), in operation 760, the first CP of the electronic device according to various embodiments has a first maximum power of a second maximum. To exceed the power, a first maximum power and a second maximum power may be determined. When the first frequency band exceeds the threshold value, it may mean that the first frequency band is included in the high frequency band and the second frequency band is included in the low frequency band. In this case, the difference between the maximum distance at which the first radio signal of the first frequency band included in the high frequency band can be received and the maximum distance at which the second radio signal of the second frequency band included in the low frequency band can be received is determined. To reduce this, the electronic device 101 according to an exemplary embodiment may determine the first maximum power as a value exceeding the second maximum power. According to an embodiment, the electronic device 101 includes the first base station 442 and the second base station 444 based on the first maximum power and the second maximum power determined as in operation 560 of FIG. 5 after operation 760. You can control the power of the signal transmitted by ).

According to an embodiment, as the first maximum power is determined to exceed the second maximum power in operation 760, the power of the signal transmitted by the first CP controlled based on the first maximum power is the second CP The power of the signal transmitted by may be increased. In this case, a distance from which a radio signal transmitted to the first base station and based on the high frequency band is radiated by the first CP may be relatively increased by the first maximum power. Referring to operations 750 and 760, in a state in which the first base station and the second base station are disposed at the same location, or the difference between the first distance and the second distance is less than a specified threshold, the electronic device according to an embodiment ( 101) may determine a maximum power used for radiation of a radio signal in a frequency band included in the high frequency band among the first maximum power or the second maximum power to be a value greater than the other maximum power.

According to an embodiment, when all of the first frequency band and the second frequency band are less than a specified threshold, or all exceed the threshold (720-example), in operation 770, according to various embodiments. The first CP of the electronic device may determine the first maximum power and the second maximum power so that the first maximum power and the second maximum power coincide. For example, when all of the first and second frequency bands are included in the low frequency band, or all of the first and second frequency bands are included in the high frequency band, the electronic device 101 according to an embodiment The first maximum power and the second maximum power may be determined based on the operation 770. For example, the electronic device 101 may determine the first maximum power and the second maximum power based on the second state EN-DC in which all of the first and second CPs are activated in Table 1.

According to an embodiment, in operation 770, while distances (eg, a first distance and a second distance) with a plurality of base stations corresponding to each of a plurality of CPs included in the electronic device coincide with each other, , Since a plurality of frequency bands (eg, a first frequency band and a second frequency band) have the same or similar frequency characteristics, the first CP of the electronic device according to the embodiment is A plurality of related maximum powers (eg, a first maximum power and a second maximum power) may be determined as the same value.

In a state in which the electronic device according to an embodiment communicates with a first base station included in a specific communication network (for example, an LTE communication network), another communication network (for example, an NSA method for the specific communication network) , NR communication network) in the case of simultaneous communication with the second base station included, the first maximum power used for communication with the first base station is equal to or greater than the second maximum power used for communication with the second base station based on the NSA scheme. Can be determined by value. For example, in operation 770, the electronic device may determine the first maximum power related to the LTE communication network as a value equal to or greater than the second maximum power.

According to an embodiment, referring to the operations 750, 760, and 770 of FIG. 7, the first base station and the second base station are disposed at the same location, or the difference between the first distance and the second distance is less than a threshold. In the electronic device 101 according to an embodiment, the characteristics of each of the first frequency band used for communication with the first base station and the second frequency band used for communication with the second base station (e.g., radiation characteristics , Reception distance) may be used to determine the first maximum power and the second maximum power.

According to an embodiment, when the difference between the first distance and the second distance exceeds a specified threshold (710-Yes), in operation 740, the first CP of the electronic device according to various embodiments is the first frequency. It may be determined whether all of the band and the second frequency band are less than or exceed a specified threshold. The electronic device according to an embodiment may perform the operation 740 similarly to the operation 720.

According to an embodiment, when any one of the first frequency band and the second frequency band is less than a specified threshold and the other exceeds the threshold (740-No), in operation 780, according to various embodiments. The electronic device 101 may determine the first maximum power and the second maximum power based on the first distance, the second distance, the first frequency band, and the second frequency band. For example, when one of a plurality of frequency bands used by a plurality of CPs included in the electronic device 101 is included in a high frequency band and the other is included in a low frequency band, the electronic device 101 A plurality of maximum powers corresponding to each of the plurality of CPs may be obtained based on the frequency bands of and the distances between the plurality of CPs and the corresponding plurality of base stations.

For example, a first frequency band related to a first RAT (eg, LTE) is included in a low frequency band of less than 1 GHz, and a second frequency band related to a second RAT (eg, NR) is a high frequency of 1 GHz or more. When included in the band, the first CP of the electronic device according to an embodiment may determine the first maximum power P ₁ and the second maximum power P ₂ based on Equation 2.

Referring to Equation 2, each of D ₁ and D ₂ represents a first distance between the electronic device 101 and the first base station 442, and a second distance between the electronic device 101 and the second base station 444. It can mean. Referring to Equation 2, in a state in which the first distance is less than or equal to the second distance, the electronic device 101 according to an embodiment provides a first maximum power and a second maximum power so that the first maximum power is less than or equal to the second maximum power. Power can be determined. In one embodiment, in a state in which the first distance is less than or equal to the second distance, the electronic device 101 according to an embodiment has a power consumption threshold (eg, 23 dBm) in which the sum of the first maximum power and the second maximum power is specified. The first maximum power and the second maximum power may be determined to be below. In order to radiate the same distance, since the radio signal using the low frequency band requires less power than the radio signal using the high frequency band, the second maximum power is determined to be a value equal to or greater than the first maximum power, and thus the second base station through the second antenna It is possible to increase the distance from which the radio signal transmitted to 444 is radiated.

Referring to Equation 2, the electronic device 101 according to an embodiment may change the first maximum power and the second maximum power according to changes in the first distance and the second distance. In a state in which the first distance exceeds the second distance, the electronic device 101 according to an exemplary embodiment provides an offset (OFFSET(D)) based on a first distance and/or a second distance, and a first frequency band and/or Alternatively, the first maximum power and the second maximum power may be determined by further considering the offset (OFFSET(f)) based on the second frequency band. For example, OFFSET(f) is an offset reflecting the attenuation of the transmitted signal resulting from the difference between the first and second frequency bands, and OFFSET(D) is the attenuation of the transmitted signal at the difference between the first and second distances. May be an offset in which is reflected. For example, the first CP is the first maximum power and the first maximum power so that the sum of the OFFSET(D), OFFSET(f), the first maximum power and the second maximum power corresponds to a specified power threshold (23 dBm in Equation 2). 2 You can determine the maximum power.

For another example, a first frequency band related to a first RAT (eg, LTE) is included in a high frequency band of 1 GHz or higher, and a second frequency band related to a second RAT (eg, NR) is less than 1 GHz. When included in the low frequency band, the first CP of the electronic device according to an embodiment may determine the first maximum power P ₁ and the second maximum power P ₂ based on Equation 3.

Variables of Equation 3 may have the same meaning as the variables of Equation 2. Referring to Equation 3, in a state in which the first distance is less than the second distance, the electronic device 101 according to an embodiment includes an offset based on the first distance and/or the second distance (OFFSET(D)), The first frequency band and/or the offset based on the second frequency band (OFFSET(f)), the sum of the first maximum power and the second maximum power corresponds to a specified power threshold (eg, 23 dBm). The maximum power and the second maximum power can be determined.

Referring to Equation 3, in a state in which the first distance is greater than or equal to the second distance, the electronic device 101 according to an embodiment provides a first maximum power and a second maximum power so that the first maximum power exceeds the second maximum power. Can be determined. In one embodiment, in a state in which the first distance is greater than or equal to the second distance, the electronic device 101 according to an embodiment has a sum of the first maximum power and the second maximum power equal to or less than a specified power threshold (eg, 23 dBm). The first maximum power and the second maximum power may be determined to be. In order to radiate the same distance, since the radio signal transmitted by the first CP using the high frequency band requires more power than the radio signal transmitted by the second CP using the low frequency band, the first maximum power is set to the second maximum. By determining a value equal to or greater than power, the electronic device 101 may increase the distance to which the radio signal transmitted from the first antenna is radiated by the first CP.

When all of the first and second frequency bands are less than the specified threshold, or all exceed the threshold (740-Yes), in operation 790, the electronic device 101 according to various embodiments is The first maximum power and the second maximum power may be determined based on the first distance and the second distance. For example, when all of the plurality of frequency bands used by the plurality of CPs included in the electronic device 101 are included in the high frequency band, or all of the plurality of frequency bands are included in the low frequency band, the electronic device 101 May determine a plurality of maximum powers corresponding to each of the plurality of CPs based on the distance between the plurality of CPs and the corresponding plurality of base stations. The electronic device 101 according to an embodiment, in operation 790, does not consider the radiation characteristic of the radio signal according to the frequency band, and the distance between the electronic device 101 and the plurality of base stations 442 and 444 is Based on the multiple maximum power can be obtained.

The electronic device 101 according to an embodiment of the first maximum power and the second maximum power, among the first base station 442 and the second base station 444, the maximum power associated with a base station further away from the electronic device, It can be determined by a value larger than the other maximum power. For example, when the first distance exceeds the second distance, the electronic device 101 calculates the first maximum power of the radio signal transmitted from the first antenna by the first CP used for communication with the first base station. , It may be determined to be a value greater than the second maximum power of the radio signal transmitted from the second antenna by the second CP used for communication with the second base station. For example, when the first distance is less than the second distance, the electronic device 101 determines the second maximum power of the radio signal transmitted from the second antenna by the second CP used for communication with the second base station. It may be determined to be a value greater than the first maximum power of the radio signal transmitted from the first antenna by 1 CP. In one embodiment, the electronic device 101 is in a state in which the sum of the first maximum power and the second maximum power does not exceed a specified power threshold (23 dBm in Equation 2), based on the first distance and the second distance. The first maximum power and the second maximum power may be determined.

Referring to the operations 780 and 790 of FIG. 7, in a state in which the first base station and the second base station are disposed at different locations, or the difference between the first distance and the second distance exceeds a threshold value, an embodiment The electronic device 101 according to may determine the first maximum power and the second maximum power based on the first distance and the second distance.

When determining the first maximum power and the second maximum power based on at least one of the operations 750, 760, 770, 780, and 790 of FIG. 7, the electronic device 101 according to an embodiment is And the first maximum power and the second maximum power may be determined in a state in which the sum of the second maximum power does not exceed a specified power threshold (23 dBm in Equation 2). In order to maintain simultaneous communication with all of the plurality of base stations, when the sum must exceed the threshold, the electronic device 101 according to an embodiment may stop simultaneously communicating with all of the plurality of base stations. . For example, the electronic device 101 may stop communication with a plurality of base stations based on EN-DC and may communicate with some of the plurality of base stations. Hereinafter, referring to FIG. 8, an operation of stopping the electronic device 101 from communicating with a plurality of base stations according to an embodiment will be described.

8 is a flowchart 800 illustrating an operation of an electronic device according to various embodiments. The electronic device of FIG. 8 may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3C, 4A to 4B, and 6. The operation of FIG. 8 is performed by, for example, the processor 120, the first CP 212, the second CP 214 and/or the third CP 216 of the electronic device 101 of FIGS. 4A to 4B. Can be done by The operation of FIG. 8 may be related to at least one of the operations of FIGS. 5 to 7. For example, the operation of FIG. 8 may be performed in response to identifying the first distance and the second distance based on operation 540 of FIG. 5. Alternatively, the operation of FIG. 8 may be performed in response to determining the first maximum power and the second maximum power based on the operation 550 of FIG. 5 and/or the operations of FIG. 7.

Referring to FIG. 8, in operation 810, the electronic device 101 according to various embodiments may acquire at least one parameter based on the first frequency band and the second frequency band. The at least one parameter may mean a coefficient and/or a weight corresponding to each of the first maximum power and the second maximum power. The at least one parameter may be determined based on a characteristic of a frequency band used in each of a plurality of CPs included in the electronic device.

For example, when the coefficient corresponding to the first maximum power is denoted as w ₁ and the coefficient corresponding to the second maximum power is denoted by w ₂ , the first CP is the first frequency band and the second frequency band, respectively, Alternatively, the w ₁ and w ₂ may be determined based on which frequency band is included in the low frequency band. The electronic device 101 according to an embodiment may determine w ₁ and w ₂ based on a relationship between a frequency band and a transmission distance of a radio signal. The transmission distance may mean a maximum distance at which the quality of a received radio signal can be equal to or greater than a specified quality (a parameter evaluated by BER, SNR and/or QoS). For example, a first radio signal in a first frequency band (eg, included in a low frequency band) and a second radio signal in a second frequency band (eg, included in a high frequency band) generated using the same power In contrast, the electronic device 101 may determine w ₁ and w ₂ in consideration of radiating the first radio signal farther than the second radio signal.

According to an embodiment, the electronic device 101 calculates the w ₁ and the w ₂ based on a power ratio that makes the transmission distances of a plurality of radio signals radiated from a plurality of antennas corresponding to each of a plurality of CPs equal. You can decide. For example, when the first frequency band and the second frequency band are the same, since the transmission distances of the radio signals based on each of the first and second frequency bands are identical to each other, the first CP is w ₁ and w ₂ Can be determined to be the same value (for example, 1).

For another example, a first radio signal based on a first frequency band included in the low frequency band is radiated from the first antenna through control of the first CP, and a second radio signal based on a second frequency band included in the high frequency band It may be assumed that the radio signal is radiated from the second antenna under the control of the second CP. In the above exemplary assumption, when the transmission distance of the first radio signal and the transmission distance of the second radio signal coincide with each other when the transmission power of the first radio signal is 70% of the transmission power of the second radio signal, the first CP may determine w ₁ as 0.7 and w ₂ as 1.

Referring to FIG. 8, in operation 820, the electronic device 101 according to various embodiments may combine the first maximum power and the second maximum power based on the acquired parameter. When the first maximum power is P ₁ and the second maximum power is P ₂ , the electronic device 101 performs at least one parameter obtained in operation 810 as shown in Equation 4 (for example, w ₁ and The w ₂ ), the first maximum power and the second maximum power may be combined.

In the exemplary assumption, the result of combining at least one parameter, the first maximum power, and the second maximum power by the electronic device 101 based on Equation 4 may be P ₁ /0.7 + P ₂ .

Referring to FIG. 8, in operation 830, the electronic device 101 according to various embodiments may determine whether the combination of the first maximum power and the second maximum power exceeds a specified threshold. The electronic device 101 according to an embodiment includes a combination of a first maximum power and a second maximum power based on the operation 820 (eg, a combination based on Equation 4) and a specified threshold (eg, a designated Power threshold) can be compared. For example, the specified power threshold may be 23dBm.

According to an embodiment, when the combination of the first maximum power and the second maximum power does not exceed a specified power threshold (830-No), the electronic device 101 according to various embodiments is based on the first frequency band. Communication with the first base station 442 and communication with the second base station 444 based on the second frequency band may be maintained. As an example, the first CP 212 of the electronic device 101 controls the transmission power of the radio signal radiated from the first antenna corresponding to the first CP based on the first maximum power, and the second CP 214 ) May control the transmission power of the radio signal radiated from the second antenna corresponding to the second CP based on the second maximum power. The operations of the first CP 212 and the second CP 214 may be independent of each other. When the combination of the first maximum power and the second maximum power does not exceed the specified threshold (830-No), the electronic device 101 according to an embodiment communicates with a plurality of base stations simultaneously based on EN-DC. Can keep things.

According to an embodiment, when the combination of the first maximum power and the second maximum power exceeds a specified threshold (830-Yes), in operation 840, the electronic device 101 according to various embodiments is Communication using at least one of the CP or the second CP may be stopped (may cease). For example, the electronic device 101 may stop simultaneously communicating with a plurality of base stations based on EN-DC. For example, the electronic device 101 stops communication with a base station (eg, a base station included in the NR communication network) included in a communication network operated based on the NSA method, and Communication with a base station included in the communication network (eg, a base station included in the LTE communication network) may be maintained.

In the above exemplary assumption, when P ₁ /0.7 + P ₂ exceeds a specified threshold (eg, 23 dBm), the electronic device 101 stops communication with a plurality of base stations based on EN-DC. I can. For example, a first maximum power P ₁ is used to control the transmission power of a radio signal transmitted from a first antenna used to communicate with a first base station included in the LTE communication network, and the second maximum power P ₂ is NR When used to control the transmission power of a radio signal transmitted from a second antenna used to communicate with a second base station included in the communication network, when P ₁ exceeds ₁₉ dBm, the first CP is based on EN-DC. Communication with a plurality of base stations can be stopped.

For example, if the first frequency band and the second frequency band are the same, and w ₁ and w ₂ of operation 810 are determined to be the same value (eg, 1), the first CP is the first maximum power And the sum of the second maximum power (P ₁ + P ₂ ) may be compared with a specified threshold (eg, 23 dBm). For example, when the first maximum power P ₁ exceeds 20 dBm, the first CP may stop communication with a plurality of base stations based on EN-DC.

In one embodiment, stopping communication with a plurality of base stations based on EN-DC is to release the connection with the NR base station, and the operation of the transmission and reception paths associated with the second CP corresponding to the NR communication network. It may include stopping. According to an embodiment, the electronic device 101 may transmit or receive a control message for releasing a connection with the NR base station to the NR base station through the LTE base station. In one embodiment, in response to stopping communication with a plurality of base stations based on EN-DC, the electronic device 101 calculates the transmission power (first maximum power) for the radio signal radiated from the first antenna. , Can be changed to a value corresponding to the specified power threshold.

Referring to FIG. 8, based on at least one of a first maximum power, a second maximum power, a first distance, a second distance, a first frequency band, or a second frequency band, the electronic device 101 according to an embodiment May stop communicating with the first base station or the second base station using the first CP or the second CP. For example, while the first CP maintains communication with the first base station, it may stop communicating with the second base station using the second CP. In this case, the electronic device 101 may request the second CP to stop communication with the second base station. The electronic device 101 may change the transmission power (first maximum power) for the radio signal radiated from the first antenna to correspond to a specified power threshold in operation 830.

9 is a flowchart 900 illustrating an operation of an electronic device according to various embodiments. The electronic device of FIG. 9 may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3C, 4 and 6. The operation of FIG. 9 may be performed by, for example, the processor 120 of the electronic device 101 of FIG. 4, the first CP 212 and/or the second CP 214. The operation of FIG. 9 may be related to at least one of the operations of FIGS. 5 to 8.

Referring to FIG. 9, in operation 910, the electronic device 101 according to various embodiments may determine whether a request to activate a plurality of communication paths has been received. Before operation 910, the electronic device 101 may be connected to a first base station based on a first RAT (eg, LTE). Prior to operation 910, the electronic device 101 may receive a request to activate a plurality of communication paths from the first base station. Alternatively, the electronic device 101 may generate a request to activate a plurality of communication paths according to its own determination. The request may include, for example, a request to enter the EN-DC state.

When a request to activate a plurality of communication paths is not received (910-No), in operation 950, the electronic device 101 according to various embodiments determines the transmission power of a wireless signal transmitted along a single communication path. It can be controlled based on a specified power threshold. The designated power threshold may be, for example, 23dBm. The electronic device 101 according to an embodiment may control the transmission power of the transmitted wireless signal to be less than the specified power threshold.

When a request to activate a plurality of communication paths is received (910-Yes), in operation 920, the electronic device 101 according to various embodiments selects a plurality of CPs to activate a plurality of communication paths. It can be determined whether or not it has been activated. In response to identification of that the plurality of communication paths are activated by the operation 910, the electronic device 101 according to an embodiment provides a separate CP (for example, the first communication path in FIG. 4 ). Whether the CP 212 and the second CP 214 correspond to (e.g., a state in which communication is based on EN-DC), whether a plurality of activated communication paths correspond to one CP (e.g., UL It is possible to determine whether the communication status is based on CA.

When not activating a plurality of CPs (920-No), in operation 940, the electronic device 101 according to various embodiments sets the maximum transmission powers of radio signals transmitted by all activated CPs. The sum of the transmit powers may be determined to be less than or equal to the power threshold. For example, when a plurality of activated communication paths correspond to one CP (for example, a state in which communication is based on UL CA), the electronic device 101 corresponds to each of the plurality of activated communication paths. The maximum transmission power of the plurality of wireless signals may be determined such that the sum of the maximum transmission powers is less than or equal to a specified power threshold. For example, when two communication paths are activated in the first CP, the electronic device 101 monitors so that the sum of the transmission powers of two radio signals corresponding to each of the two activated communication paths is less than a specified power threshold. To do and/or control.

Referring to the operations 910, 920, and 940 of FIG. 9, for example, in a state in which communication using a plurality of communication paths of one CP (eg, a first CP), such as an LTE UPLINK CA, The electronic device 101 monitors the transmission power of wireless signals corresponding to the plurality of communication paths using one CP, and controls the transmission power of the wireless signals corresponding to the plurality of communication paths based on the monitoring result. have.

When a plurality of CPs are activated (920-Yes), in operation 930, the electronic device 101 according to various embodiments calculates the maximum transmission powers of a radio signal transmitted by the activated plurality of CPs, It may be determined that the sum of the maximum transmission powers is less than or equal to a specified power threshold. The electronic device according to an embodiment may determine maximum powers of the operation 930 by performing at least one of the operations of FIG. 5. For example, the electronic device 101 may determine maximum powers corresponding to each of a plurality of CPs and/or a plurality of RATs. The maximum powers may match each other (eg, EN-DC in Table 1), or may be determined differently based on the operation of FIG. 7. For example, the electronic device 101 may determine a plurality of maximum powers such that the sum of the plurality of maximum powers is equal to or less than a specified power threshold (eg, 23 dBm).

In a state in which the electronic device 101 according to an embodiment simultaneously communicates with a plurality of base stations using a plurality of CPs corresponding to each of a plurality of RATs, such as EN-DC, the strength of a received electric field of each of the plurality of base stations A plurality of maximum powers corresponding to each of the plurality of RATs may be determined based on. For example, the electronic device 101 may determine a plurality of maximum powers based on the conditional expression in Table 2.

RAT ₀ (e.g., LTE) received electric field strength (dBm) Received electric field strength (dBm) of RAT ₁ (e.g. NR) Conditional expression 70 90 P _LIMIT (RAT ₀ ) <P _LIMIT (RAT ₁ ) 90 90 P _LIMIT (RAT ₀ ) ≥ P _LIMIT (RAT ₁ ) 100 70 P _LIMIT (RAT ₀ )> P _LIMIT (RAT ₁ )

Referring to Table 2, the strength of the received electric field of RAT ₀ is, for example, the strength of the received electric field formed by the base station (eg, the first base station 442 of FIG. 4) using RAT ₀ and/or It may mean a receiving sensitivity of the base station. Similarly, the strength of the received electric field of RAT ₁ is, for example, the strength of the received electric field formed by the base station using RAT ₁ (eg, the second base station 444 in FIG. 4) and/or of the base station. It may mean receiving sensitivity. In an embodiment, the strength of the received electric field in Table 2 may correspond to an average of the strength of the received electric field during a specified time period.

_Referring to Table 2, P _LIMIT (RAT ₀ ) is a radio signal transmitted by a CP used to communicate with a base station corresponding to RAT ₀ (eg, the first CP 212 in FIG. 4). This may mean the maximum power (eg, the first maximum power). Similarly, P _LIMIT (RAT ₁ ) is the maximum power that a radio signal transmitted by a CP used to communicate with a base station corresponding to RAT ₁ (eg, the second CP 214 in FIG. 4) can use It may mean (for example, the second maximum power).

Referring to Table 2, the electronic device 101 may determine a maximum power corresponding to a RAT having a relatively large intensity of a received electric field among the plurality of RATs as a value greater than the maximum power corresponding to another RAT. In one embodiment, when RAT ₁ is operated dependently on RAT ₀ like an NSA, even if the strengths of the received electric fields of a plurality of RATs coincide with each other, the electronic device 101 determines the maximum power corresponding to RAT ₀ , RAT ₁ It can be determined as a value equal to or greater than the maximum power corresponding to.

In one embodiment, when any one electric field among the plurality of RATs is changed, the electronic device 101 at least temporarily sets the maximum power corresponding to the RAT in which the electric field is changed, a relatively large value (for example, a designated power Threshold). For example, if the RAT of the field ₀ is rapidly changed, the electronic device 101 may increase the maximum power (P _LIMIT (RAT ₀₎₎ corresponding to the RAT _0.

Referring to the operations 910, 920, and 930 of FIG. 9, for example, in a state in which communication is performed using a plurality of communication paths corresponding to each of a plurality of CPs, such as EN-DC, the electronic device 101 Using a plurality of CPs, power of a radio signal transmitted along a plurality of communication paths may be monitored, and power of a radio signal transmitted along a plurality of communication paths may be controlled based on the monitoring result.

10 is a flowchart 1000 illustrating an operation of an electronic device according to various embodiments. The electronic device of FIG. 10 may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3C, 4 and 6. The operation of FIG. 10 may be performed by, for example, the processor 120, the first CP 212 and/or the second CP 214 of the electronic device 101 of FIG. 4. The operation of FIG. 10 may be related to at least one of the operations of FIGS. 5 to 9. Among the operations of FIG. 10, operations performed similarly to those of FIG. 9 will be omitted.

Referring to FIG. 10, in operation 1010, the electronic device 101 according to various embodiments may determine whether a request to activate a plurality of communication paths has been received. The electronic device 101 according to an embodiment may perform an operation 1010 similar to the operation 910 of FIG. 9.

When a request to activate a plurality of communication paths is not received (1010-No), in operation 1040, the electronic device 101 according to various embodiments specifies the power of the wireless signal transmitted according to a single communication path. It can be controlled based on the power threshold. The electronic device 101 according to an embodiment may perform an operation 1040 similar to the operation 950 of FIG. 9.

When a request to activate a plurality of communication paths is received (1010-Yes), in operation 1020, the electronic device 101 according to various embodiments activates a plurality of CPs to activate a plurality of communication paths. It can be determined whether or not. The electronic device 101 according to an embodiment may perform an operation 1020 similar to the operation 920 of FIG. 9.

When a plurality of CPs are activated (1020-Yes), in operation 1030, the electronic device 101 according to various embodiments determines whether at least one of the plurality of communication paths is a communication path operating based on TDD. I can judge. In one embodiment, different communication paths may be operated based on different duplexing schemes. According to the duplexing method of the communication path, the total sum of power available for the wireless signal transmitted by the electronic device 101 may have different values as shown in Table 3.

Duplexing method Maximum power Power class FDD 23dBm 3 TDD 26dBm 2

Unlike a communication path that operates based on FDD, a communication path operating based on TDD may transmit a radio signal only in a specified time interval according to a preset transmission period/reception period. In this case, a communication path operating based on TDD may have a relatively small current consumption and/or a specific absorption rate (SAR) measurement value compared to a communication path operating based on FDD. In addition, in the communication path operating based on TDD, the average power used of the transmission signal may be adjusted by adjusting the length of the transmission section in which the signal is transmitted. Accordingly, a communication path operating based on TDD can use power class 2 specified in the LTE standard, and thus maximum power can be used up to 27 dBm, as shown in Table 3. Referring to Table 3, the electronic device 101 according to an embodiment has a maximum power of a communication path operating based on TDD (eg, 26 dBm) compared to a maximum power (eg, 23 dBm) of a communication path operating based on FDD. dBm) can be determined as a larger value. For example, the maximum power of a communication path operating based on TDD may be greater than or equal to a specified strength (eg, 3 dB) compared to the maximum power of a communication path operating based on FDD.

Table 4 shows the duplex method, maximum power and power class that can be used in each frequency band, and the maximum power considers the case of using two transmission antennas. As shown in Table 4, the communication path may use either FDD or TDD, depending on the frequency band used.

Referring to Table 4, LTE BAND may mean an identifier of a frequency band defined by the LTE standard. The second power limit may mean the maximum power that a radio signal transmitted in a corresponding frequency band can use. The electronic device 101 according to an embodiment may identify a communication path based on TDD from among a plurality of communication paths, based on a frequency band corresponding to each of a plurality of activated communication paths.

If a plurality of CPs are not activated (1020-No), or none of the plurality of communication paths operate based on TDD (1030-No), in operation 1050, according to various embodiments. The electronic device 101 may determine maximum powers of a radio signal transmitted according to a plurality of communication paths related to the activated CP such that the sum of the maximum powers is less than or equal to the first power threshold. The first power threshold may correspond to, for example, a designated power threshold (eg, 23dBm) of FIGS. 5 to 9. In an embodiment, when all of the plurality of activated communication paths operate based on FDD, the electronic device 101 may perform an operation 1050. The first CP of the electronic device according to an embodiment may perform the operation 1050 similar to the operation 940 of FIG. 9.

The electronic device 101 according to an embodiment may determine the maximum power associated with each of the plurality of communication paths, based on Table 4. For example, when the frequency bands of LTE BAND #1 and #28 are allocated to each of a plurality of communication paths, the electronic device 101 may determine a maximum power of a radio signal transmitted according to each of the plurality of communication paths as 20dBm. .

When at least one of the plurality of communication paths is a communication path that operates based on TDD (1030-Yes), in operation 1060, the electronic device 101 according to various embodiments may be connected to a communication path based on TDD. The maximum power of the wireless signal transmitted accordingly may be determined as a designated second power threshold. The second power threshold may correspond to the maximum power (eg, 26dBm or 24dBm) of Tables 3 to 4. Similar to operation 1050, the electronic device 101 according to an embodiment determines the maximum power of a wireless signal transmitted according to a communication path based on another duplexing scheme (eg, FDD) distinguished from TDD. I can. According to an embodiment, a CP corresponding to a communication path based on TDD and/or a CP corresponding to a communication path based on FDD based on the determined maximum power is a radio transmitted according to each communication path based on the determined maximum power. The power of the signal can be determined.

The electronic device 101 according to an embodiment may make the sum of powers used by wireless signals transmitted through a plurality of communication paths correspond to a specified power threshold (eg, 23 dBm). For example, based on Table 4, the electronic device 101 according to an embodiment has a maximum power associated with RAT ₀ (eg, of a radio signal used to communicate with a first base station included in an LTE communication network). After determining the first maximum power), the maximum power related to RAT ₁ (eg, the second maximum power of the radio signal used to communicate with the second base station included in the NR communication network) based on Equation 5 You can decide.

For example, the the second CP corresponding to a first CP and RAT ₁ corresponding to the RAT ₀ associated with the electronic device 101 RAT ₀ when using the first frequency band and second frequency band based on FDD 1 The maximum power may be determined based on Table 2, and the second maximum power related to RAT ₁ may be determined based on Equation 5. For example, when the first maximum power related to RAT ₀ is determined to be 21 dBm by, for example, the operation of FIG. 7, the first CP is to obtain the second maximum power related to RAT ₁ based on Equation 6 I can.

In a state in which the electronic device 101 according to an embodiment simultaneously communicates with a plurality of base stations based on EN-DC, when adjusting a plurality of maximum powers by distances between the electronic device and the plurality of base stations, the equation Using 5, it is possible to make the sum of a plurality of maximum powers correspond to a specified power consumption threshold.

11 is a flowchart 1100 for describing an operation of an electronic device according to various embodiments. The electronic device of FIG. 11 may correspond to the electronic device 101 of FIGS. 1 to 2, 3A to 3C, 4 and 6. The operation of FIG. 11 may be performed, for example, by the processor 120, the first CP 212 and/or the second CP 214 of the electronic device 101 of FIG. 4. The operation of FIG. 11 may be related to at least one of the operations of FIGS. 5 to 10.

The electronic device 101 according to an embodiment may include a plurality of antennas (eg, the first antenna 242 and the second antenna 244 of FIG. 4 ). The plurality of antennas 242 and 244 may be controlled through a corresponding CP and/or an antenna tuner (eg, the antenna tuner 410 of FIG. 4 ). Control of the plurality of antennas may include, for example, adjustment of the operating frequency and/or impedance matching. The electronic device according to an embodiment may adjust operating frequencies of a plurality of antennas and/or perform impedance matching according to the maximum power determined based on FIGS. 5 to 10. Adjustment of the operating frequency and/or impedance matching may be performed by changing an antenna tuning code corresponding to each of the plurality of antennas. In addition, the power of the radio signal radiated from the antenna can be adjusted as the impedance is changed for each frequency band by changing the antenna tuning code. When the impedance of the antenna is changed due to the change of the antenna tuning code, the radiation efficiency of the antenna may be changed, so that transmission power may be intentionally increased or decreased. As an example, if an antenna tuning code that increases the impedance to satisfy the SAR condition is used, the amount of signal radiation is reduced, and the power of the signal radiated from the antenna may be reduced. In another embodiment, when two antennas 242 and 244 are connected to one antenna tuner 410, antenna tuning such that one antenna (for example, 242) has a minimum impedance in the frequency band of the radiated signal If the code is used, the impedance of other antennas (e.g., 244) that radiate signals in different frequency bands becomes relatively large, resulting in lower radiated power and thus lower SAR.

In an embodiment, the antenna tuning code may be stored in a memory of the electronic device 101 (eg, the memory 130 of FIG. 1 ).

Referring to FIG. 11, in operation 1105, the electronic device 101 according to various embodiments may identify a first antenna tuning code and a second antenna tuning code corresponding to each of the first RAT and the second RAT. have. For example, the electronic device 101 may identify a first antenna tuning code corresponding to a first antenna of the electronic device for communicating with a first base station based on a first RAT (eg, LTE). Similarly, the electronic device 101 may identify a second antenna tuning code corresponding to a second antenna of the electronic device for communicating with a second base station based on a second RAT (eg, NR). Using the first antenna tuning code and the second antenna tuning code, the electronic device 101 may adjust the operating frequency of each of the first and second antennas, or perform impedance matching of each of the first and second antennas. have. For example, the electronic device 101 may set the impedance of the first antenna to match in a first frequency band corresponding to the first RAT based on the first antenna tuning code. Similarly, the electronic device 101 may set the impedance of the second antenna to match in the second frequency band corresponding to the second RAT based on the second antenna tuning code.

Referring to FIG. 11, in operation 1110, the electronic device 101 according to various embodiments determines whether the sum of transmission powers of radio signals corresponding to each of the first RAT and the second RAT exceeds a specified threshold. I can judge. The designated threshold may mean a designated power threshold (eg, 23dBm) of FIGS. 5 to 9.

When the sum of the transmission powers of operation 1110 exceeds the specified threshold (1110-Yes), in operation 1115, the electronic device 101 according to various embodiments transmits a radio signal corresponding to the first RAT. It may be determined whether the power exceeds the transmission power of the radio signal corresponding to the second RAT. In an embodiment, the electronic device 101 may identify a RAT that uses relatively large power from among a plurality of RATs used by the electronic device for communication. The electronic device 101 may adjust an antenna tuning code for an antenna corresponding to the RAT using relatively large power. For example, the electronic device 101 may reduce the transmission power of the radiated radio signal by adjusting the antenna tuning code for the corresponding antenna.

When the transmission power of the radio signal corresponding to the first RAT exceeds the transmission power of the radio signal corresponding to the second RAT (1115-Yes), in operation 1120, the electronic device 101 according to various embodiments May adjust the first antenna tuning code corresponding to the first RAT. When the transmission power of the radio signal corresponding to the first RAT does not exceed the transmission power of the radio signal corresponding to the second RAT (1115-No), in operation 1125, the electronic device 101 according to various embodiments ) May adjust the second antenna tuning code corresponding to the second RAT.

Referring to operations 1115, 1120, and 1125, in a state in which the sum of the transmission power of the radio signal corresponding to the first RAT and the transmission power of the radio signal corresponding to the second RAT exceeds a specified threshold, the electronic device ( 101) can change the antenna tuning code corresponding to the RAT using relatively large transmission power. As the antenna tuning code is changed, transmission power of a radio signal radiated from the antenna may be reduced. As the transmission power of the radio signal decreases, the sum of the transmission power of radio signals for a plurality of RATs included in the electronic device may be reduced to less than a specified threshold.

When the sum of the transmit powers of operation 1110 does not exceed the specified threshold (1110-No), in operation 1130, the electronic device 101 according to various embodiments of the present invention transmits a radio signal corresponding to the first RAT. It may be determined whether the transmission power exceeds the first maximum power or whether the transmission power of the radio signal corresponding to the second RAT exceeds the second maximum power. The first maximum power and the second maximum power are, for example, operation 550 of FIG. 5, operations 750, 760, 770, 780, 790 of FIG. 7, and operations 930 of FIG. 9. 940) and may be determined based on at least one of the operations 1050 and 1060 of FIG. 10. In an embodiment, the electronic device 101 may identify a RAT exceeding a corresponding maximum power among a plurality of RATs.

When the transmission power of the radio signal corresponding to the first RAT is less than or equal to the first maximum power, and the transmission power of the radio signal corresponding to the second RAT is less than or equal to the second maximum power (1130-No), in operation 1135, The electronic device 101 according to various embodiments may adjust the first antenna tuning code and the second antenna tuning code. When the electronic device 101 adjusts all of the first antenna tuning code and the second antenna tuning code, the transmission power of each of the radio signal corresponding to the first RAT and the radio signal corresponding to the second RAT is the first maximum power and It may mean adjusting to correspond to each of the second maximum power. By operation 1135, the transmission power of the radio signal corresponding to the first RAT may be increased to a first maximum power, and the transmission power of the radio signal corresponding to the first RAT may be increased to a second maximum power. .

When the transmission power of the radio signal corresponding to the first RAT exceeds the first maximum power, or the transmission power of the radio signal corresponding to the second RAT exceeds the second maximum power (1130-Yes), operation 1140 ), the electronic device 101 according to various embodiments may determine whether the transmission power of the radio signal corresponding to the first RAT exceeds the transmission power of the radio signal corresponding to the second RAT. The electronic device 101 according to an embodiment may perform the operation 1140 similar to the operation 1115.

When the transmission power of the radio signal corresponding to the first RAT exceeds the transmission power of the radio signal corresponding to the second RAT (1140-Yes), in operation 1145, the electronic device 101 according to various embodiments May adjust the first antenna tuning code corresponding to the first RAT. When the transmission power of the radio signal corresponding to the first RAT is less than the transmission power of the radio signal corresponding to the second RAT (1140-No), in operation 1150, the electronic device 101 according to various embodiments is The second antenna tuning code corresponding to the 2 RAT can be adjusted.

Referring to operations 1140, 1145, and 1150, in a state in which at least one of the transmission power of the radio signal corresponding to the first RAT or the transmission power of the radio signal corresponding to the second RAT exceeds the corresponding maximum power, The electronic device 101 may relatively change an antenna tuning code corresponding to the RAT using cone transmission power. As the antenna tuning code is changed, transmission power of a radio signal radiated through the antenna may be reduced. As the transmission power of the radio signal corresponding to the RAT is reduced, the sum of the transmission power of the radio signals corresponding to the plurality of RATs included in the electronic device 101 may be reduced to less than a specified threshold. For example, the electronic device 101 may reduce the transmission power of the radio signal corresponding to the RAT to less than the corresponding maximum power by changing the antenna tuning code corresponding to the RAT having a relatively high transmission power of the radio signal. .

An electronic device according to various embodiments may include a plurality of CPs, a plurality of wireless transceivers connected to each of the plurality of CPs, and a plurality of antennas. One of the plurality of CPs included in the electronic device 101 (for example, the first CP 212 in FIG. 4) is not only a corresponding wireless transceiver and an antenna, but also another CP (for example, in FIG. A wireless transceiver and an antenna connected to the second CP 214 may be controlled. Alternatively, the processor 120 included in the electronic device 101 controls a radio transmission path and an antenna corresponding to each of a plurality of CPs (eg, the first CP 212 and the second CP 214 in FIG. 4) can do. The control may include controlling power consumed to generate a plurality of radio signals simultaneously radiated through the plurality of antennas.

In an embodiment, in order to support EN-DC, a plurality of CPs included in the electronic device may be simultaneously connected to a plurality of base stations supporting different RATs. In this case, any one of the plurality of CPs can maintain the transmission power of the radio signal used for simultaneous communication with the plurality of base stations below a specified threshold. In order to keep the transmission power of a radio signal used for simultaneous communication with a plurality of base stations below a specified threshold, the electronic device 101 is a distance between each of the plurality of base stations and the electronic device or specified for communication with each of the plurality of base stations. At least one of the frequency bands can be identified. Based on the identified distance and/or frequency band, the electronic device 101 may determine the maximum power of the transmission signal transmitted by at least one CP.

According to various embodiments, an electronic device (eg, the electronic device 101 of FIG. 1, the electronic device 101 of FIG. 2) includes a plurality of antennas (eg, the first antenna module 242 of FIG. 2, the second antenna). A module 244, a third antenna module 246), a first communication processor based on a first radio access technology (RAT) operatively connected to at least one of the plurality of antennas , CP) (e.g., the first communication processor 212 of FIG. 2), a second communication processor (CP) based on a second radio access technology (RAT) operatively connected to at least one of the plurality of antennas (Example: the second communication processor 214 of FIG. 2) and a processor operatively connected to the first CP and the second CP (eg, the processor 120 of FIG. 1, the processor 120 of FIG. 2) And the first CP communicates with a first base station (BS) using the first RAT based on a first frequency band, and in a state in which the first CP communicates with the first base station, the first 1 identifies a first distance between the base station and the electronic device, and the second CP communicates with a second base station using the second RAT based on a second frequency band different from the first frequency band, and the second CP In a state in which the base station is in communication, the second distance between the second base station and the electronic device is identified, and the processor comprises at least one of the first distance, the first frequency band, the second distance, or the second frequency band. Based on one, a first maximum power of a first radio signal transmitted by the first CP and a second maximum power of a second radio signal transmitted by the second CP may be determined.

According to various embodiments, a first transmission path for transmission of the first radio signal transmitted to the first base station by a first CP, and a second radio signal transmitted to the second base station by a second CP. Further comprising a second transmission path for transmission, wherein the first CP controls a power amplifier included in the first transmission path based on the first maximum power, the second CP, the The power amplifier included in the second transmission path may be controlled based on the second maximum power.

According to various embodiments of the present disclosure, when a difference between the identified first distance and the second distance is less than a specified distance, the processor may perform the first maximum power and the second maximum power based on the first frequency band and the second frequency band. The maximum power can be determined.

According to various embodiments of the present disclosure, when both the first frequency band and the second frequency band are less than or exceed the specified frequency, the first maximum power and the second maximum power are the same. , The first maximum power and the second maximum power may be determined.

According to various embodiments of the present disclosure, when the first frequency band is less than the designated frequency and the second frequency band exceeds the designated frequency, the processor is configured to allow the second maximum power to exceed the first maximum power. 1 maximum power and the second maximum power are determined, and when the first frequency band exceeds the specified frequency and the second frequency band is less than the specified frequency, the first maximum power exceeds the second maximum power The first maximum power and the second maximum power may be determined so as to be performed.

According to various embodiments of the present disclosure, when the identified difference between the first distance and the second distance is greater than or equal to a specified distance, the processor is based on the first distance and the second distance, the first maximum power and the second maximum Power can be determined.

According to various embodiments of the present disclosure, when both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the processor is configured based on the first distance and the second distance. 1 maximum power and the second maximum power may be determined.

According to various embodiments of the present disclosure, when the first frequency band is less than the designated frequency, the second frequency band exceeds the designated frequency, and the second distance is shorter than the first distance, the first distance And determining the first maximum power and the second maximum power based on the difference between the second distance and the difference between the first frequency band and the second frequency band, and wherein the first frequency band is the designated frequency And the second maximum power and the second maximum power so that when the second frequency band exceeds the specified frequency, and the second distance exceeds the first distance, the second maximum power exceeds the first maximum power. Determine a second maximum power, and if the first frequency band exceeds the specified frequency and the second frequency band is less than the specified frequency, and the first distance is shorter than the second distance, the first distance and Determining the first maximum power and the second maximum power based on the difference between the second distance and the difference between the first frequency band and the second frequency band,

When the first frequency band exceeds the specified frequency, the second frequency band is less than the specified frequency, and the second distance exceeds the first distance, the second maximum power is less than the first maximum power The first maximum power and the second maximum power may be determined to be.

According to various embodiments of the present disclosure, the processor maintains a third maximum power in which the sum of the first maximum power and the second maximum power is specified, and the first distance, the first frequency band, the second distance, or The first maximum power and the second maximum power may be obtained based on at least one of the second frequency bands.

According to various embodiments, in the processor, the first CP and the first base station communicate based on time division duplexing (TDD), or the second CP and the second base station are based on the TDD. Thus, in the case of communication, the first maximum power and the second maximum power may be obtained based on a fourth maximum power exceeding the third maximum power.

According to various embodiments, the processor is based on at least one of the first maximum power, the second maximum power, the first distance, the second distance, the first frequency band or the second frequency band, Communication with the first base station or the second base station may be stopped using the first CP or the second CP.

According to various embodiments, the first RAT may correspond to Long-Term Evolution (LTE), and the second RAT may correspond to New Radio (NR).

According to various embodiments, a method of operating an electronic device (for example, the electronic device 101 of FIG. 1 and the electronic device 101 of FIG. 2) is based on a first radio access technology (RAT). 1 Operation of communicating with a first base station (BS) based on a first frequency band using a communication processor (CP) (eg, the first communication processor 212 in FIG. 2) , In a state of communicating with the first base station, identifying a first distance between the first base station and the electronic device, based on a second RAT, a second CP (e.g., the second communication processor of FIG. 214)) to communicate with a second base station (BS) based on a second frequency band different from the first frequency band, and in a state of communicating with the second base station, the second base station and the electronic Identifying a second distance between devices, based on at least one of the first distance, the first frequency band, the second distance, or the second frequency band, a first radio transmitted by the first CP It may include an operation of determining a first maximum power of a signal and a second maximum power of a second radio signal transmitted by the second CP.

According to various embodiments, the method includes controlling a power amplifier included in a first transmission path for transmission of the first radio signal based on the first maximum power using the first CP. And controlling a power amplifier included in a second transmission path for transmission of the second radio signal using the second CP based on the second maximum power.

According to various embodiments, the determining of the first maximum power and the second maximum power is performed when the difference between the identified first distance and the second distance is less than a specified distance, the first frequency band and the second frequency. It may include an operation of determining the first maximum power and the second maximum power based on a band.

According to various embodiments of the present disclosure, determining the first maximum power and the second maximum power based on the first frequency band and the second frequency band,

When both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the first maximum power and the second maximum power are the same, so that the first maximum power and the second maximum power are the same. 2 determining a maximum power, when the first frequency band is less than the designated frequency and the second frequency band exceeds the designated frequency, the second maximum power exceeds the first maximum power. Determining a maximum power and the second maximum power, and when the first frequency band exceeds the designated frequency and the second frequency band is less than the designated frequency, the first maximum power exceeds the second maximum power It may include an operation of determining the first maximum power and the second maximum power.

According to various embodiments, in the determining of the first maximum power and the second maximum power, when a difference between the identified first distance and the second distance is greater than or equal to a specified distance, the first distance and the second distance are Based on this, it may include an operation of determining the first maximum power and the second maximum power.

According to various embodiments of the present disclosure, the determining of the first maximum power and the second maximum power based on the first distance and the second distance is performed at a frequency in which both the first frequency band and the second frequency band are designated. If less than or exceeds the specified frequency, determining the first maximum power and the second maximum power based on the first distance and the second distance, the first frequency band is less than the specified frequency And when the second frequency band exceeds the designated frequency and the second distance is shorter than the first distance, the difference between the first distance and the second distance and the first frequency band and the second frequency Determining the first maximum power and the second maximum power based on a difference between bands, the first frequency band is less than the designated frequency and the second frequency band exceeds the designated frequency, and the second When the distance exceeds the first distance, determining the first maximum power and the second maximum power such that the second maximum power exceeds the first maximum power, the first frequency band is the designated frequency And the second frequency band is less than the designated frequency, and the first distance is shorter than the second distance, the difference between the first distance and the second distance and the first frequency band and the second Determining the first maximum power and the second maximum power based on a difference between frequency bands, and the first frequency band exceeds the specified frequency and the second frequency band is less than the specified frequency, and the second frequency band When the second distance exceeds the first distance, determining the first maximum power and the second maximum power so that the second maximum power is less than the first maximum power.

According to various embodiments, in the determining of the first maximum power and the second maximum power, the first maximum power is maintained while the sum of the first maximum power and the second maximum power maintains a designated third maximum power. An operation of determining the first maximum power and the second maximum power based on at least one of a distance, the first frequency band, the second distance, or the second frequency band, or the first CP and the first base station When communicating based on time division duplexing (TDD), or when the second CP and the second base station communicate based on the TDD, based on a fourth maximum power exceeding the third maximum power Thus, an operation of determining the first maximum power and the second maximum power may be further included.

According to various embodiments, the first RAT may correspond to Long-Term Evolution (LTE), and the second RAT may correspond to New Radio (NR).

The methods according to the embodiments described in the claims or the specification of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented in software, a computer-readable storage medium storing one or more programs (software modules) may be provided. One or more programs stored in a computer-readable storage medium are configured to be executable by one or more processors in an electronic device (device). The one or more programs include instructions that cause the electronic device to execute methods according to embodiments described in the claims or specification of the present disclosure.

These programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable programmable ROM. (EEPROM: electrically erasable programmable read only memory), magnetic disc storage device, compact disc-ROM (CD-ROM), digital versatile discs (DVDs), or other types of It may be stored in an optical storage device or a magnetic cassette. Alternatively, it may be stored in a memory composed of a combination of some or all of them. In addition, a plurality of configuration memories may be included.

In addition, the program is through a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination of It may be stored in an attachable storage device that can be accessed. Such a storage device may access a device performing an embodiment of the present disclosure through an external port. In addition, a separate storage device on the communication network may access a device performing an embodiment of the present disclosure.

In the above-described specific embodiments of the present disclosure, components included in the disclosure are expressed in the singular or plural according to the presented specific embodiments. However, the singular or plural expression is selected appropriately for the situation presented for convenience of description, and the present disclosure is not limited to the singular or plural constituent elements, and even constituent elements expressed in plural are composed of the singular or in the singular. Even the expressed constituent elements may be composed of pluralities.

Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure is limited to the described embodiments and should not be determined, and should be determined by the scope of the claims as well as the equivalents of the claims to be described later.

Claims (20)

In an electronic device,
A plurality of antennas;
A first communication processor (CP) based on a first radio access technology (RAT) operatively connected to at least one of the plurality of antennas;
A second communication processor (CP) based on a second radio access technology (RAT) operatively connected to at least one of the plurality of antennas; And
And a processor operatively connected to the first CP and the second CP,
The first CP,
Communicate with a first base station (BS) using the first RAT based on a first frequency band,
In the state of communicating with the first base station, identify a first distance between the first base station and the electronic device,
The second CP,
Communicates with a second base station using the second RAT based on a second frequency band different from the first frequency band,
In the state of communicating with the second base station, identify a second distance between the second base station and the electronic device,
The processor,
Based on at least one of the first distance, the first frequency band, the second distance, or the second frequency band, the first maximum power and the second CP of the first radio signal transmitted by the first CP Determining a second maximum power of the second wireless signal transmitted by the electronic device.
The method of claim 1,
A first transmission path for transmission of the first radio signal transmitted to the first base station by a first CP;
Further comprising a second transmission path for transmission of the second radio signal transmitted to the second base station by the second CP,
The first CP controls a power amplifier included in the first transmission path based on the first maximum power,
The second CP is an electronic device that controls a power amplifier included in the second transmission path based on the second maximum power.
The method of claim 1,
The processor,
When the difference between the identified first distance and the second distance is less than a specified distance, the electronic device determining the first maximum power and the second maximum power based on the first frequency band and the second frequency band.
The method of claim 3,
The processor,
When both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the first maximum power and the second maximum power are the same, so that the first maximum power and the second maximum power are the same. 2 The electronic device, which determines the maximum power.
The method of claim 4,
The processor,
When the first frequency band is less than the specified frequency and the second frequency band exceeds the specified frequency, the first maximum power and the second maximum power so that the second maximum power exceeds the first maximum power. To decide,
When the first frequency band exceeds the specified frequency and the second frequency band is less than the specified frequency, the first maximum power and the second maximum power are applied so that the first maximum power exceeds the second maximum power. Electronic device to determine.
The method of claim 1,
The processor,
When a difference between the identified first distance and the second distance is greater than or equal to a specified distance, the electronic device determines the first maximum power and the second maximum power based on the first distance and the second distance.
The method of claim 6,
The processor,
When both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the first maximum power and the second maximum power based on the first distance and the second distance The electronic device to determine.
The method of claim 7,
The processor,
When the first frequency band is less than the designated frequency, the second frequency band exceeds the designated frequency, and the second distance is shorter than the first distance, the difference between the first distance and the second distance, and Determining the first maximum power and the second maximum power based on a difference between the first frequency band and the second frequency band,
When the first frequency band is less than the designated frequency, the second frequency band exceeds the designated frequency, and the second distance exceeds the first distance, the second maximum power is the first maximum power. Determine the first maximum power and the second maximum power to exceed,
When the first frequency band exceeds the specified frequency, the second frequency band is less than the specified frequency, and the first distance is shorter than the second distance, the difference between the first distance and the second distance, and Determining the first maximum power and the second maximum power based on a difference between the first frequency band and the second frequency band,
When the first frequency band exceeds the specified frequency, the second frequency band is less than the specified frequency, and the second distance exceeds the first distance, the second maximum power is less than the first maximum power The electronic device determining the first maximum power and the second maximum power to be.
The method of claim 1,
The processor,
In a state in which the sum of the first maximum power and the second maximum power maintains a designated third maximum power, at least one of the first distance, the first frequency band, the second distance, or the second frequency band An electronic device that obtains the first maximum power and the second maximum power based on the first power.
The method of claim 9,
The processor,
When the first CP and the first base station communicate based on time division duplexing (TDD), or the second CP and the second base station communicate based on the TDD, the third maximum An electronic device that obtains the first maximum power and the second maximum power based on a fourth maximum power exceeding power.
The method of claim 1,
The processor,
Based on at least one of the first maximum power, the second maximum power, the first distance, the second distance, the first frequency band, or the second frequency band, the first CP or the second CP is An electronic device that ceases communicating with the first base station or the second base station by using.
The method of claim 1,
The first RAT corresponds to LTE (Long-Term Evolution),
The second RAT is an electronic device corresponding to a new radio (NR).
In the method of operating an electronic device,
Based on a first radio access technology (RAT), and a first base station (BS) based on a first frequency band using a first communication processor (CP) Communicating;
Identifying a first distance between the first base station and the electronic device in a state of communication with the first base station;
Communicating with a second base station (BS) based on a second frequency band different from the first frequency band by using a second CP based on the second RAT;
Identifying a second distance between the second base station and the electronic device in a state of communication with the second base station;
Based on at least one of the first distance, the first frequency band, the second distance, or the second frequency band, the first maximum power and the second CP of the first radio signal transmitted by the first CP And determining a second maximum power of a second wireless signal transmitted by.
The method of claim 13,
Controlling a power amplifier included in a first transmission path for transmission of the first wireless signal using the first CP based on the first maximum power; And
The method further comprising controlling a power amplifier included in a second transmission path for transmission of the second radio signal by using the second CP based on the second maximum power.
The method of claim 13,
The operation of determining the first maximum power and the second maximum power,
When the difference between the identified first distance and the second distance is less than a specified distance, determining the first maximum power and the second maximum power based on the first frequency band and the second frequency band. Way.
The method of claim 15,
The operation of determining the first maximum power and the second maximum power based on the first frequency band and the second frequency band,
When both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the first maximum power and the second maximum power are the same, so that the first maximum power and the second maximum power are the same. 2 determining the maximum power;
When the first frequency band is less than the specified frequency and the second frequency band exceeds the specified frequency, the first maximum power and the second maximum power so that the second maximum power exceeds the first maximum power. An operation to determine; And
When the first frequency band exceeds the specified frequency and the second frequency band is less than the specified frequency, the first maximum power and the second maximum power are applied so that the first maximum power exceeds the second maximum power. A method involving determining actions.
The method of claim 13,
The operation of determining the first maximum power and the second maximum power,
If the difference between the identified first distance and the second distance is greater than or equal to a specified distance, determining the first maximum power and the second maximum power based on the first distance and the second distance .
The method of claim 17,
Based on the first distance and the second distance, determining the first maximum power and the second maximum power,
When both the first frequency band and the second frequency band are less than a specified frequency or exceed the specified frequency, the first maximum power and the second maximum power based on the first distance and the second distance An operation to determine;
When the first frequency band is less than the designated frequency, the second frequency band exceeds the designated frequency, and the second distance is shorter than the first distance, the difference between the first distance and the second distance, and Determining the first maximum power and the second maximum power based on a difference between the first frequency band and the second frequency band;
When the first frequency band is less than the designated frequency, the second frequency band exceeds the designated frequency, and the second distance exceeds the first distance, the second maximum power is the first maximum power. Determining the first maximum power and the second maximum power to exceed;
When the first frequency band exceeds the specified frequency, the second frequency band is less than the specified frequency, and the first distance is shorter than the second distance, the difference between the first distance and the second distance, and Determining the first maximum power and the second maximum power based on a difference between the first frequency band and the second frequency band; And
When the first frequency band exceeds the specified frequency, the second frequency band is less than the specified frequency, and the second distance exceeds the first distance, the second maximum power is less than the first maximum power And determining the first maximum power and the second maximum power to be.
The method of claim 13,
The operation of determining the first maximum power and the second maximum power,
In a state in which the sum of the first maximum power and the second maximum power maintains a designated third maximum power, at least one of the first distance, the first frequency band, the second distance, or the second frequency band Determining the first maximum power and the second maximum power based on or
When the first CP and the first base station communicate based on time division duplexing (TDD), or the second CP and the second base station communicate based on the TDD, the third maximum And determining the first maximum power and the second maximum power based on a fourth maximum power exceeding power.
The method of claim 13,
The first RAT corresponds to LTE (Long-Term Evolution),
The second RAT corresponds to NR (New Radio).

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