Electronic device and method for performing beam changing in a wireless communication system

Abstract

An electronic device according to various embodiments includes: a first antenna module, configured to receive a service beam from a first base station by forming a first beam; a second antenna module, configured to measure the signal strength of an adjacent beam received from a second base station by forming a second beam; a first temperature sensor, configured to measure a temperature corresponding to the first antenna module; a second temperature sensor, configured to measure a temperature corresponding to the second antenna module; at least one processor, operatively connected to the first antenna module and / or the second antenna module; and a memory, operatively connected to at least one processor, wherein the memory may store instructions that, when executed, cause the at least one processor to: determine whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from the first temperature sensor when performing communication with the first base station through the first antenna module, and based on determining that the first antenna module is in an overheated state, perform switching to the second base station based on channel measurement information about the second base station.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is the national phase of International Application No. PCT / KR2020 / 004766 designating the United States, which was filed with the Korean Intellectual Property Office on April 8, 2020 and claims priority to Korean Patent Application No. 10-2019-0046658 filed with the Korean Intellectual Property Office on April 22, 2019, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to an electronic device and a method for determining whether to change a beam and performing the beam change in a wireless communication system. Background Art

[0004] With the evolution of mobile communication technology, multifunctional portable terminals have become commonplace, and in order to meet the growing demand for radio traffic, 5G communication systems are being vigorously developed. In order to achieve high data rates, 5G communication systems consider implementing in ultra-high frequency bands that can provide faster data rates in addition to the high frequency bands adopted by 3G and 4G.

[0005] A 5G UE supporting mmWave (which is an ultra-high frequency band) is packaged with multiple antenna modules. The mmWave radio channel is subject to high straightness and large path loss due to its high frequency nature, and to compensate for these problems, highly directional beamforming is essential, for which multiple antenna modules are required. For example, a 5G UE may be equipped with multiple antenna modules that radiate signals in different directions, and among the multiple antenna modules, an antenna module that can form a beam in the same direction as that of a base station (e.g., gNB) may be selected and used for communication.

[0006] Due to the increase in data throughput and the use of high-frequency bands, the millimeter wave antenna module consumes more power, which ultimately results in more heat and thus overheats the antenna module in use or the surrounding environment of the antenna module. An overheated antenna module or surrounding environment may cause discomfort or even low-temperature burns to the user of the portable terminal. In addition, components (e.g., a battery) around the overheated antenna module may be damaged, and the overall performance of the portable terminal may be degraded. Summary of the invention

[0007] Embodiments of the present disclosure may use a switching or measurement reporting process according to the 5G communication standard to change a candidate beam to a serving beam so as to perform communication using another antenna module of a portable terminal when the antenna module in use is overheated, thereby reducing heat generation in the 5G UE.

[0008] According to various example embodiments of the present disclosure, an electronic device includes: a first antenna module including at least one antenna, configured to form a first beam and receive a service beam from a first base station; a second antenna module including at least one antenna, configured to form a second beam and measure the signal strength of a signal of a neighbor beam received from a second base station; a first temperature sensor configured to measure the temperature of the first antenna module; a second temperature sensor configured to measure the temperature of the second antenna module; at least one processor operatively connected to the first antenna module or the second antenna module; and a memory operatively connected to the at least one processor, wherein the memory may store instructions that, when executed, configure the at least one processor to: when performing communication with a first base station through the first antenna module, determine whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from the first temperature sensor, and based on determining that the first antenna module is in an overheated state, control the electronic device to perform a switch to the second base station based on channel measurement information of the second base station.

[0009] According to various example embodiments of the present disclosure, an electronic device includes: a first antenna module including at least one antenna, configured to form a first beam and receive a service beam from a base station; a second antenna module including at least one antenna, configured to form a second beam and receive a candidate beam from the base station; a first temperature sensor, configured to measure the temperature of the first antenna module; a second temperature sensor, configured to measure the temperature of the second antenna module; at least one processor, operatively connected to the first antenna module or the second antenna module; and a memory, operatively connected to the at least one processor, wherein the memory may store instructions that, when executed, cause the at least one processor to be configured The invention is to: when communicating with a base station using a first beam through a first antenna module and measuring the signal strength of a candidate beam using a second beam in a second antenna module, determine whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from a first temperature sensor, and based on determining that the first antenna module is in an overheated state, control the electronic device to send a message to the base station including information indicating that the signal strength of the candidate beam measured from the second antenna module is greater than the signal strength of the service beam measured from the first antenna module by a threshold signal strength or more, and control the electronic device to receive the service beam changed from the candidate beam using the second beam in response to receiving a beam change command from the base station based on the sent message.

[0010] According to various example embodiments of the present disclosure, a method for performing beam changing by an electronic device including multiple antenna modules and multiple temperature sensors configured to measure the temperature of each of the multiple antenna modules may include: when receiving a service beam using a first beam formed by a first antenna module to communicate with a first base station and measuring the signal strength of an adjacent beam using a second beam formed by a second antenna module, determining whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from a first temperature sensor, and based on determining that the first antenna module is in an overheated state, performing switching to a second base station based on channel measurement information of the second base station.

[0011] According to various example embodiments, electronic devices and methods may stop or reduce the operation of an antenna module in use for a predetermined time when overheating is detected in the antenna module, and perform communication with a base station via another antenna module, thereby preventing and / or reducing damage to components surrounding the antenna module and degradation of the overall performance of the portable terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The foregoing and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0013] Figure 1 is a block diagram illustrating an example electronic device in a network environment according to various embodiments;

[0014] Figure 2 is a block diagram illustrating an electronic device in a network environment including multiple cellular networks according to various embodiments;

[0015] Figure 3A , 3B 3C is a diagram illustrating a wireless communication system providing a conventional communication network and / or a 5G communication network according to various embodiments;

[0016] Figure 4 is a diagram showing a protocol stack structure of a network for conventional communication and / or 5G communication according to various embodiments;

[0017] Figure 5A and 5B is a diagram illustrating a beam changing operation according to various embodiments;

[0018] Figure 6 is a diagram showing temperature distribution of an electronic device when overheating of an antenna module occurs according to various embodiments;

[0019] Figure 7 is a block diagram illustrating an electronic device according to various embodiments;

[0020] Fig. 8A ,8B , 8C and 8D are perspective views showing example configurations of internal modules packaged in electronic devices according to various embodiments;

[0021] Fig. 9 is a block diagram showing an example configuration of main modules packaged in an electronic device according to various embodiments;

[0022] Fig.10 is a circuit diagram showing an example configuration of internal modules in an electronic device according to various embodiments;

[0023] Fig.11 is a flow chart illustrating an example method of performing beam changing using a switching process by an electronic device according to various embodiments;

[0024] Fig.12 is a flow chart illustrating example operations of an electronic device performing beam changing using a switching process according to various embodiments;

[0025] Fig.13 is a signal flow diagram illustrating a process of performing beam changing by an electronic device according to various embodiments;

[0026] Fig.14 is a flow chart illustrating an example method for performing beam changing by an electronic device using a measurement reporting procedure according to various embodiments;

[0027] Fig.15 is a flow chart illustrating example operations by an electronic device to perform beam changing using a measurement reporting procedure in accordance with various embodiments;

[0028] Fig.16 is a flow chart illustrating example operations of performing beam changing via a beam changing request by an electronic device according to various embodiments;

[0029] Fig.17 is a signal flow diagram illustrating an example process of performing beam changing by an electronic device according to various embodiments; and

[0030] Fig.18 is a flow chart illustrating example operations in the case where there are no candidate beams when an antenna module in use overheats according to various embodiments. DETAILED DESCRIPTION

[0031] Hereinafter, various exemplary embodiments of the present disclosure are described with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the above-described embodiments, and all variations and / or equivalents or replacements also fall within the scope of the present disclosure. Throughout the disclosure and the accompanying drawings, the same or similar reference numerals may be used to refer to the same or similar elements.

[0032] When used herein, the terms “have”, “may have”, “include” or “may include” a certain feature (for example, quantity, function, operation, or component such as a part) indicates the presence of the feature, and does not exclude the presence of other features.

[0033] When used herein, the term "configured (or set) to" may be used interchangeably with the terms "suitable for", "capable of", "designed to", "suitable for", "enabling", or "capable of", as appropriate. The term "configured (or set) to" does not necessarily mean "specially designed in hardware". Rather, the term "configured to" may refer to a device that can perform an operation together with another device or part. For example, the term "a processor configured (or set) to perform A, B, and C" may refer to a general-purpose processor (e.g., a CPU or application processor) that can perform operations by executing one or more software programs stored in a memory device, or a dedicated processor (e.g., an embedded processor) for performing operations.

[0034] Each of the above-mentioned components of the electronic device may include one or more parts, and the name of the part may vary with the type of the electronic device. The electronic device according to various embodiments of the present disclosure may include at least one of the above-mentioned components, omit some of them, or include (one or more) other additional components. Some components may be combined into an entity, but the entity may perform the same function as the function that the component may perform.

[0035] The terms used herein are only used to describe some embodiments thereof and do not limit the scope of other embodiments of the present disclosure. It should be understood that the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. All terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those of ordinary skill in the art to which the embodiments of the present disclosure belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0036] For example, examples of electronic devices according to an embodiment may include at least one of the following: a smart phone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop computer, a netbook computer, a workstation, a PDA (personal digital assistant), a portable multimedia player (PMP), an MP3 player, a mobile medical device, a camera, a wearable device (e.g., smart glasses, a head-mounted device (HMD), electronic clothes, an electronic bracelet, an electronic necklace, an electronic jewelry, an electronic tattoo, a smart mirror, a smart watch), etc.

[0037] According to various embodiments, the electronic device may be a smart home appliance. Examples of smart home appliances may include at least one of the following: a television, a digital video disc (DVD) player, an audio player, a refrigerator, an air conditioner, a cleaner, an oven, a microwave oven, a washing machine, a dryer, an air purifier, a set-top box, a home automation control panel, a security control panel, a TV box (e.g., Samsung HomeSync TM , Apple TV TM or Google TV TM ), game consoles (Xbox TM , PlayStation TM ), electronic dictionaries, electronic keys, cameras, electronic photo frames, etc.

[0038] According to an embodiment, examples of electronic devices may include at least one of the following: various medical devices (for example, various portable medical measuring devices (blood sugar measuring devices, heart rate measuring devices or body temperature measuring devices), magnetic resonance angiography (MRA) devices, magnetic resonance imaging (MRI) devices, computed tomography (CT) devices, imaging devices or ultrasonic devices), navigation devices, global positioning system (GPS) receivers, event data recorders (EDRs), flight data recorders (FDRs), car infotainment devices, marine electronic equipment (for example, marine navigation equipment or gyrocompasses), avionics equipment, security equipment, vehicle-mounted hosts, industrial or household robots, automated teller machines (ATMs), point-of-sale (POS) devices or Internet of Things devices (for example, light bulbs, various sensors, electricity meters or gas meters, sprinklers, fire alarms, thermostats, street lights, toasters, fitness equipment, hot water tanks, heaters or boilers), etc.

[0039] According to various embodiments of the present disclosure, examples of electronic devices may be at least one of the following: a part of furniture or a building / structure, an electronic board, an electronic signature receiving device, a projector, various measuring devices (e.g., a device for measuring water, electricity, gas, or electromagnetic waves), etc. According to an embodiment, the electronic device may be one or a combination of the devices listed above. According to various embodiments, the electronic device may be a flexible electronic device. The electronic devices disclosed herein are not limited to the devices listed above, and may include new electronic devices according to the development of technology.

[0040] Figure 1 1 is a block diagram illustrating an example electronic device 101 in a network environment 100 according to various embodiments. Figure 1, the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with the electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input device 150, a sound output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the components (e.g., the display device 160 or the camera module 180) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the components may be implemented as a single integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented to be embedded in the display device 160 (eg, a display).

[0041] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to an embodiment, as at least part of the data processing or calculation, the processor 120 may load a command or data received from another component (e.g., sensor module 176 or communication module 190) into the volatile memory 132, process the command or data stored in the volatile memory 132, and store the result data in the non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) and an auxiliary processor 123 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is independent of or combined with the main processor 121 in operation. Additionally or alternatively, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be specifically used for a specified function. The auxiliary processor 123 may be implemented separately from the main processor 121 , or as part of the main processor 121 .

[0042] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 (not the main processor 121), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 together with the main processor 121. According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 180 or communication module 190) that is functionally related to the auxiliary processor 123.

[0043] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134.

[0044] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0045] The input device 150 may receive commands or data from outside the electronic device 101 (e.g., a user) to be used by other components of the electronic device 101 (e.g., the processor 120). The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus).

[0046] The sound output device 155 can output a sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records, and the receiver can be used for incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as a part of the speaker.

[0047] The display device 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to an embodiment, the display device 160 may include a touch circuit adapted to detect a touch or a sensor circuit (e.g., a pressure sensor) adapted to measure the strength of a force caused by a touch.

[0048] The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 may obtain sound via the input device 150, or output sound via the sound output device 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0049] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a user's state) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. 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 infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0050] The interface 177 may support one or more specific protocols that will be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., 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, a secure digital (SD) card interface, or an audio interface.

[0051] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102) via the connector. According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0052] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0053] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0054] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0055] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0056] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0057] The antenna module 197 may send a signal or power to the outside (e.g., an external electronic device) or receive a signal or power from the outside (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiator formed by a conductor or a conductive pattern formed on a substrate (e.g., a printed circuit board (PCB)). 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 scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190. Subsequently, a signal or power may be sent or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, other parts (e.g., a radio frequency integrated circuit (RFIC)) other than the radiator may be further formed as a part of the antenna module 197.

[0058] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0059] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via a server 108 connected to the second network 199. Each of the external electronic devices 102 and 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be run on the electronic device 101 may be run on one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically perform a function or service or should perform a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to perform at least part of the function or service instead of running the function or service, or the electronic device 101 may request the one or more external electronic devices to perform at least part of the function or service in addition to running the function or service. The one or more external electronic devices that receive the request may perform the requested at least part of the function or service, or perform another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request with or without further processing the result. To this end, cloud computing technology, distributed computing technology or client-server computing technology may be used, for example.

[0060] Figure 2 is a block diagram 200 of an electronic device 101 in a network environment including multiple cellular networks according to various embodiments. Figure 2 , the electronic device 101 may include a first communication processor 212, a second communication processor 214, a first radio frequency integrated circuit (RFIC) 222, a second RFIC 224, 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. The electronic device 101 may also include a processor 120 and a memory 130. The second network 299 may include a first cellular network 292 and a second cellular network 294. According to an embodiment, the electronic device 101 may also include Figure 1The wireless communication module 292 may include at least one of the components of the wireless communication module 292, and the second network 299 may also include at least one other network. According to an embodiment, the first communication processor (CP) 212, the second CP 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 292. According to an embodiment, the fourth RFIC 228 may be omitted or included as a part of the third RFIC 226.

[0061] The first CP 212 may establish a communication channel of a frequency band to be used for wireless communication with the first cellular network 292, or may support traditional network communication via the established communication channel. According to an embodiment, the first cellular network may be a traditional network including a second generation (2G), a third generation (3G), a fourth generation (4G), or a long term evolution (LTE) network. The second CP 214 may establish a communication channel corresponding to a specified frequency band (e.g., from about 6 GHz to about 60 GHz) in a frequency band to be used for wireless communication with the second cellular network 294, or may support fifth generation (5G) network communication via the established communication channel. According to an embodiment, the second cellular network 294 may be a 5G network defined by the third generation partnership project (3GPP). In addition, according to an embodiment, the first CP 212 or the second CP 214 may establish a communication channel corresponding to another specified frequency band (e.g., about 6 GHz or less) in a frequency band to be used for wireless communication with the second cellular network 294, or may support fifth generation (5G) network communication via the established communication channel. According to an embodiment, the first CP 212 and the second CP 214 may be implemented in a single chip or a single package. According to an embodiment, the first CP 212 or the second CP 214 may be formed in a single chip or a single package together with the processor 120, the auxiliary processor 123, or the communication module 190.

[0062] When transmitting, the first RFIC 222 can convert the baseband signal generated by the first CP 212 into a radio frequency (RF) signal with a frequency range of about 700 MHz to about 3 GHz, which is used by the first cellular network 292 (e.g., a legacy network). When receiving, the RF signal can be obtained from the first cellular network 292 (e.g., a legacy network) through an antenna (e.g., the first antenna module 242) and pre-processed via an RFFE (e.g., the first RFFE 232). The first RFIC 222 can convert the pre-processed RF signal into a baseband signal that can be processed by the first CP 212.

[0063] When transmitting, the second RFIC 224 can convert the baseband signal generated by the first CP 212 or the second CP 214 into an RF signal of the Sub6-band (e.g., about 6 GHz or less) (hereinafter referred to as a "5G Sub6 RF signal"), which is used by the second cellular network 294 (e.g., a 5G network). When receiving, the 5G Sub6 RF signal can be obtained from the second cellular network 294 (e.g., a 5G network) through an antenna (e.g., a second antenna module 244) and pre-processed via an RFFE (e.g., a second RFFE 234). The second RFIC 224 can convert the pre-processed 5G Sub6 RF signal into a baseband signal, which can be processed by the corresponding processors of the first CP 212 and the second CP 214.

[0064] The third RFIC 226 may convert the baseband signal generated by the second communication processor 214 into a 5G Above6 band (e.g., about 6 GHz to about 60 GHz) RF signal (hereinafter referred to as "5G Above6 RF signal") to be used by the second cellular network 294 (e.g., 5G network). Upon reception, the 5GAbove6 RF signal may be obtained from the second cellular network 294 (e.g., 5G network) through an antenna (e.g., antenna 248) and pre-processed via the third RFFE 236. The third RFIC 226 may convert the pre-processed 5G Above6 RF signal into a baseband signal that may be processed by the second CP 214. According to an embodiment, the third RFFE 236 may be formed as part of the third RFIC 226.

[0065] According to an embodiment, the electronic device 101 may include a fourth RFIC 228 that is separate from or at least part of the third RFIC 226. In this case, the fourth RFIC 228 may convert the baseband signal generated by the second CP 214 into an intermediate frequency band (e.g., from about 9 GHz to about 11 GHz) RF signal (hereinafter referred to as an "IF signal") and transmit the IF signal to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above 6 RF signal. When receiving, the 5G Above 6 RF signal may be received from the second cellular network 294 (e.g., a 5G network) through an antenna (e.g., antenna 248) and converted into an IF signal by the third RFIC 226. The fourth RFIC 228 may convert the IF signal into a baseband signal that may be processed by the second CP 214.

[0066] According to an embodiment, the first RFIC 222 and the second RFIC 224 may be implemented as at least a portion of a single chip or a single package. According to an embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as at least a portion of a single chip or 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 a multi-band RF signal.

[0067] According to an embodiment, the third RFIC 226 and the antenna 248 may be arranged on the same substrate to form a third antenna module 246. For example, the wireless communication module 192 or the processor 120 may be arranged on a first substrate (e.g., a main printed circuit board (PCB)). In this case, the third RFIC 226 and the antenna 248 may be arranged on an area (e.g., bottom) and another area (e.g., top) of a second substrate (e.g., a sub-PCB) provided separately from the first substrate, respectively, to form the third antenna module 246. Placing the third RFIC 226 and the antenna 248 on the same substrate can shorten the length of the transmission line between them. This can reduce the loss (e.g., attenuation) of the high-frequency band (e.g., from about 6 GHz to about 60 GHz) signal for 5G network communication due to the transmission line. Therefore, the electronic device 101 can enhance the communication quality with the second cellular network 294 (e.g., 5G network).

[0068] 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 a plurality of phase shifters 238 corresponding to the plurality of antenna elements as part of the third RFFE 236. During transmission, the plurality of phase shifters 238 may change the phase of a 5G Above6 RF signal to be sent to the outside of the electronic device 101 (e.g., a 5G network base station) via their respective corresponding antenna elements. During reception, the plurality of phase shifters 238 may change the phase of a 5G Above6 RF signal received from the outside to the same or substantially the same phase via their respective corresponding antenna elements. This enables transmission or reception between the electronic device 101 and the outside via beamforming.

[0069] The second cellular network 294 (e.g., a 5G network) can operate independently of the first cellular network 292 (e.g., a traditional network) (e.g., as a standalone (SA)) or in association with the first cellular network 292 (e.g., as a non-standalone (NSA)). For example, the 5G network may include an access network (e.g., a 5G access network (RAN)) but without any core network (e.g., a next generation core (NGC)). In this case, after accessing the 5G access network, the electronic device 101 can access an external network (e.g., the Internet) under the control of the core network (e.g., an evolved packet core (EPC)) of the traditional network. Protocol information for communicating with a traditional network (e.g., LTE protocol information) or protocol information for communicating with a 5G network (e.g., new radio (NR) protocol information) can be stored in the memory 130 and accessed by other components (e.g., the processor 120, the first CP 212, or the second CP 214).

[0070] Figure 3A , 3B 3C are diagrams showing wireless communication systems providing a conventional communication network and / or a 5G communication network according to various embodiments. Figure 3A , 3B The network environments 100A, 100B, and 100C may include at least one of a legacy network and a 5G network. The legacy network may include, for example, a 3GPP standard 4G or LTE base station 340 (e.g., eNodeB (eNB)) supporting radio access with the electronic device 101 and an evolved packet core (EPC) 342 managing 4G communications. The 5G network may include, for example, a new radio (NR) base station 350 (e.g., gNodeB (gNB)) supporting radio access with the electronic device 101 and a 5th generation core (5GC) 352 managing 5G communications of the electronic device 101.

[0071] According to an embodiment, the electronic device 101 may send or receive control messages and user data via conventional communication and / or 5G communication. The control message may include, for example, a message related to at least one of security control, bearer establishment, authentication, registration, or mobility management of the electronic device 101. The user data may refer to, for example, user data other than control messages sent or received between the electronic device 101 and the core network 330 (e.g., EPC 342).

[0072] refer to Figure 3AAccording to an embodiment, the electronic device 101 may send at least one of a control message or user data to / receive at least one of a control message or user data from at least one part of a 5G network (e.g., an NR base station 350 or 5GC 352) via at least one part of a conventional network (e.g., an LTE base station 340 or an EPC 342).

[0073] According to an embodiment, the network environment 100A may include a network environment that provides wireless communication dual connectivity (DC) to the LTE base station 340 and the NR base station 350 and sends / receives control messages to / from the electronic device 101 via a core network 330 of the EPC 342 or the 5GC 352.

[0074] According to an embodiment, in a DC environment, one of the LTE base station 340 or the NR base station 350 may operate as a master node (MN) 310, and the other may operate as a secondary node (SN) 320. The MN 310 may be connected to the core network 330 to send or receive control messages. The MN 310 and the SN 320 may be connected to each other via a network interface to send or receive messages related to radio resource (e.g., communication channel) management therebetween.

[0075] According to an embodiment, the MN 310 may include an LTE base station 340, the SN 320 may include an NR base station 350, and the core network 330 may include an EPC 342. For example, control messages may be sent / received via the LTE base station 340 and the EPC 342, and user data may be sent / received via the LTE base station 340 and the NR base station 350.

[0076] According to an embodiment, the MN 310 may include an NR base station 350, the SN 320 may include an LTE base station 340, and the core network 330 may include a 5GC 352. For example, control messages may be sent / received via the NR base station 350 and the 5GC 352, and user data may be sent / received via the LTE base station 340 and the NR base station 350.

[0077] According to an embodiment, the MN 310 may include an NR base station 350, the SN 320 may include an NR base station 350, and the core network 330 may include a 5GC 352. For example, a control message may be sent / received via the NR base station 350 and the 5GC 352, and user data may be sent / received via a first NR base station (e.g., the NR base station 350) and a second NR base station (e.g., the NR base station 350).

[0078] refer to Figure 3BAccording to various embodiments, the 5G network may include an NR base station 350 and a 5GC 352, and send or receive control messages and user data independently of the electronic device 101.

[0079] refer to Figure 3C According to an embodiment, the traditional network and the 5G network can each independently provide data transmission / reception. For example, the electronic device 101 and the EPC 342 can send or receive control messages and user data via the LTE base station 340. As another example, the electronic device 101 and the 5GC 352 can send or receive control messages and user data via the NR base station 350.

[0080] According to an embodiment, the electronic device 101 may register in at least one of the EPC 342 or the 5GC 352 to send or receive a control message.

[0081] According to an embodiment, the EPC 342 or the 5GC 352 may cooperate with each other to manage the communication of the electronic device 101. For example, the mobility information of the electronic device 101 may be transmitted or received via the interface between the EPC 342 and the 5GC 352.

[0082] Figure 4 492 and 5G network 494.

[0083] The electronic device 101 may include an Internet protocol 412, a first communication protocol stack 414, and a second communication protocol stack 416. The electronic device 101 may communicate with the server 108 via a traditional network 492 and / or a 5G network 494.

[0084] According to an embodiment, the electronic device 101 may perform Internet communications associated with the server 108 using an Internet protocol 412 (e.g., TCP, UDP, and / or IP). The Internet protocol 412 may be implemented by, for example, a main processor (e.g., Figure 1 The main processor 121) is executed.

[0085] According to an embodiment, the electronic device 101 may use the first communication protocol stack 414 to wirelessly communicate with the traditional network 492. According to an embodiment, the electronic device 101 may use the second communication protocol stack 416 to wirelessly communicate with the 5G network 494. The first communication protocol stack 414 and the second communication protocol stack 416 may be implemented by, for example, one or more communication processors (e.g., Figure 1 The wireless communication module 192) is executed.

[0086] The server 108 may include an Internet protocol 422. The server 108 may transmit / receive data related to the Internet protocol 422 to / from the electronic device 101 through the traditional network 492 and / or the 5G network 494. According to an embodiment, the server 108 may include a cloud computing server existing outside the traditional network 492 or the 5G network 494. In an embodiment, the server 108 may include an edge computing server (or a mobile edge computing (MEC) server) located inside at least one of the traditional network 492 or the 5G network 494.

[0087] The legacy network 492 may include an LTE base station 440 and an EPC 442. The LTE base station 440 may include an LTE communication protocol stack 444. The EPC 442 may include a legacy non-access stratum (NAS) protocol 446. The legacy network 492 may perform LTE wireless communication with the electronic device 101 using the LTE communication protocol stack 444 and the legacy NAS protocol 446.

[0088] The 5G network 494 may include an NR base station 450 and a 5GC 452. The NR base station 450 may include an NR communication protocol stack 454. The 5GC 452 may include a 5G NAS protocol 456. The 5G network 494 may perform NR wireless communication with the electronic device 101 using the NR communication protocol stack 454 and the 5G NAS protocol 456.

[0089] According to an embodiment, the first communication protocol stack 414, the second communication protocol stack 416, the LTE communication protocol stack 444, and the NR communication protocol stack 454 may include a control plane protocol for sending and receiving control messages and a user plane protocol for sending and receiving user data. The control message may include, for example, a message related to at least one of security control, bearer establishment, authentication, registration, or mobility management. For example, the user data may include data other than the control message.

[0090] According to an embodiment, the control plane protocol and the user plane protocol may include a physical (PHY) layer, a media access control (MAC) layer, a radio link control (RLC) layer, or a packet data convergence protocol (PDCP) layer. The PHY layer may, for example, channel code and modulate data received from a higher layer (e.g., a MAC layer) and send it via a radio channel and may demodulate and decode data received via a radio channel and deliver it to a higher layer. The PHY layer included in the second communication protocol stack 416 and the NR communication protocol stack 454 may further perform operations related to beamforming. The MAC layer may be logically / physically mapped to a radio channel to send / receive data and perform a hybrid automatic repeat request (HARQ) for error correction. For example, the RLC layer may perform concatenation, segmentation, or reorganization of data, and may identify the order of data, rearrange data, or redundancy check data. The PDCP layer may perform operations related to encryption and data integrity of, for example, control data and user data. The second communication protocol stack 416 and the NR communication protocol stack 454 may also include a service data adaptation protocol (SDAP). SDAP can manage the allocation of radio bearers based on the Quality of Service (QoS) of user data.

[0091] According to various embodiments, the control plane protocol may include a radio resource control (RRC) layer and a non-access stratum (NAS) layer. For example, the RRC layer may process control data related to radio bearer establishment, paging, or mobility management. The NAS layer may process control messages related to, for example, authentication, registration, and mobility management.

[0092] Figure 5A and 5B is a diagram illustrating a beam changing operation according to various embodiments.

[0093] exist Figure 5AIn the embodiment, the electronic device 101 according to various embodiments may be configured to form a first beam in a first direction toward a first transmit-receive point (TRP) 510 using a first antenna module 531 among a plurality of antenna modules, and receive a service beam using the first beam. The first antenna module 531 may receive a service beam using the first beam formed in the first direction, thereby communicating with the first TRP 510. The electronic device 101 may be configured to form a second beam in a second direction toward a second transmit-receive point (TRP) 520 using a second antenna module 532 among a plurality of antenna modules, and receive an adjacent beam or a candidate beam using the second beam. When the electronic device 101 performs communication with the first TRP 510 using the first beam, the second beam is not used for communication, and may be formed when measuring the signal strength of an adjacent beam or a candidate beam received from the second TRP. For example, the second antenna module 532 may not perform data transmission / reception, and may be enabled to report the measurement result of a synchronization signal block (SSB) or a channel state information-reference signal (CSI-RS) to the base station (gNB) when measuring the channel state of the electronic device 101.

[0094] According to various embodiments, the first antenna module 531 and the second antenna module 532 may include a microwave antenna module capable of transmitting a signal to the outside or receiving a signal from the outside in a 5G communication environment, and may be connected to Figure 2 corresponds to at least one of the first antenna module 242, the second antenna module 244 or the third antenna module 246.

[0095] According to various embodiments, the first TRP 510 and the second TRP 520 may include an external access device that forms a beam with the antenna module of the electronic device 101 to perform communication. For example, the first TRP 510 and the second TRP 520 may be included in the same base station (gNB). In this case, the electronic device 101 may select a service beam based on the channel state of the beam operated by the base station during communication with the base station and use it for communication. As another example, the first TRP 510 and the second TRP 520 may be included in different base stations (gNB). In this case, the second TRP 520 may be included in a base station of a neighboring cell adjacent to the cell to which the base station including the first TRP 510 belongs. The electronic device 101 may select a base station that can provide the best channel performance at the current location as a service base station, and may perform communication using a beam formed toward the service base station as a service beam.

[0096] According to various embodiments, when communicating with the first TRP 510 via the service beam using the first antenna module 531, the electronic device 101 may change the service beam via beam switching in response to the occurrence of a specified situation. The specified situation may include at least one of the movement of the user, the generation of traffic load, or the performance degradation of the antenna module being used. According to various embodiments, when the electronic device 101 detects that the first antenna module 531 used for communication operation generates heat exceeding a specified level, the electronic device 101 may stop the operation of the first antenna module 531 and change the service beam, such as Figure 5B shown.

[0097] According to various embodiments, the electronic device 101 may periodically or continuously check the temperature of the first antenna module 531 when performing communication with the first TRP 510 via the first antenna module 531, and if the temperature of the first antenna module 531 exceeds the threshold temperature set as the overheat reference temperature, it is determined that it has been overheated. Upon recognizing that the first antenna module 531 has been overheated, the electronic device 101 may use the second antenna module 532 instead of the first antenna module 531 to perform communication. The second antenna module 532 may be an antenna module that forms a beam with the highest performance channel among a plurality of candidate beams (or a plurality of adjacent beams) that the electronic device 101 together with the base station may form using a plurality of antenna modules. In order to perform communication using the second antenna module 532, the electronic device 101 may change an existing candidate beam (or an adjacent beam) received with the second beam to a service beam. When the existing candidate beam (or an adjacent beam) is changed to a service beam, the first antenna module 531 may stop the communication operation, and during this period, the heat of the first antenna module 531 may be reduced. When the first antenna module 531 in the overheated state reduces the heat, the first antenna module 531 may perform an operation for measuring the channel state of a candidate beam or an adjacent beam. According to various embodiments, if it is identified that the temperature of the first antenna module 531 exceeds a specified level and is overheated, the first antenna module 531 may be excluded from the candidate beam list or the adjacent beam list during a predetermined time, and its channel state is not measured, and if the heat of the first antenna module 531 is reduced to a reference temperature or lower after the predetermined time has passed, the first antenna module 531 may be added back to the candidate beam list or the adjacent beam list to measure its channel state.

[0098] Figure 6 is a diagram illustrating temperature distribution of an electronic device when overheating of an antenna module occurs according to various embodiments.

[0099] Since the microwave antenna module needs to use a high frequency band to process more data, it consumes a lot of power and generates more heat. If the antenna module being operated to communicate with the base station generates heat, an overheating area 610 may be formed in the electronic device 101 relative to the position of the antenna module, such as Figure 6 If an overheated area 610 is formed in the electronic device 101, the user of the electronic device 101 may feel uncomfortable, and the overheated area 610 and components around it (eg, a battery) may be damaged. As a result, the overall performance of the electronic device 101 may be affected.

[0100] Figure 7 700 is a block diagram illustrating an electronic device according to various embodiments. The electronic device 101 may be a device (e.g., a smart phone or a tablet computer) that changes an antenna operated for data transmission / reception by beam switching in response to detecting an overheat state of an operated antenna module and may include a first antenna module (e.g., including at least one antenna) 710, a second antenna module 720 (e.g., including at least one antenna), a first temperature sensor 730, a second temperature sensor 740, at least one processor (e.g., including a processing circuit) 750, and / or a memory 130.

[0101] According to various embodiments, the first antenna module 710 may form a first beam toward a first transmit receive point (TRP) to receive a service beam from the first TRP, and the second antenna module 720 may form a second beam toward a second TRP to receive an adjacent beam or a candidate beam from the second TRP. According to an embodiment, the first TRP may be a TRP included in a first base station. The second TRP may be a TRP included in the first base station or a second base station different from the first base station. The first base station may be a service base station (e.g., a wireless base station) that sends / receives data through a wireless connection between the electronic device 101 and the 5G network. Figure 4 The second base station may be a base station belonging to a neighboring cell adjacent to the cell to which the first base station belongs (e.g., Figure 4 gNB or NR base station 450). When the electronic device 101 uses the first antenna module 710 to communicate with the first TRP, the second antenna module 720 may not perform operations for data transmission / reception but may perform operations for signal strength measurement when measuring the channel status of an adjacent beam or a candidate beam.

[0102] According to various embodiments, the first temperature sensor 730 may measure a temperature corresponding to the first antenna module 710, and the second temperature sensor 740 may measure a temperature corresponding to the second antenna module 720. The first temperature sensor 730 may be included in the first antenna module 710 or disposed around the first antenna module 710 and may periodically or continuously measure the temperature when the first antenna module 710 may receive a service beam from the first TRP and perform communication with the first base station. The second temperature sensor 740 may be included in the second antenna module 720 or disposed around the second antenna module 720 and may periodically or continuously measure the temperature when the second antenna module performs communication with the second TRP.

[0103] According to various embodiments, the at least one processor 750 may include various processing circuits including an application processor (e.g., Figure 2 processor 120) or at least one communication processor (e.g., Figure 2 For example, the at least one communication processor 214 included in the at least one processor 750 may be operatively connected to the first antenna module 710 and the second antenna module 720. As another example, the processor 120 included in the at least one processor 750 may be operatively connected to the first temperature sensor 730 or the second temperature sensor 740.

[0104] According to various embodiments, the memory 130 may be operatively connected with at least one processor 750 .

[0105] According to various embodiments, the memory 130 may store instructions that, when executed, cause at least one processor 750 to control the electronic device 101 to change the antenna module used for transmission / reception with the base station using a switching process when an overheat state of the first antenna module 710 is detected. For example, the at least one processor 750 may determine whether the first antenna module 710 is in an overheat state based on the temperature of the first antenna module 710 obtained from the first temperature sensor 730 when performing communication with the first base station using the first antenna module 710. The at least one processor 750 may determine that the first antenna module 710 is in an overheat state when it is identified that the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature set as an overheat reference temperature. Since the temperature sensors corresponding to the antenna modules are set at different positions, different threshold temperatures may be set for each antenna module as a reference for determining whether the antenna module is in an overheat state.

[0106] According to various embodiments, when it is determined that the first antenna module 710 is in an overheated state, the at least one processor 750 may perform communication using the second antenna module 720. As an example, based on the channel measurement information of the second base station determined using the second antenna module 720, the second base station may be determined as a handover target base station. According to various embodiments, the at least one processor 750 may receive an instruction on the channel state measurement of one or more adjacent beams or candidate beams from the first base station as a condition for performing the handover, and may measure the strength of one or more adjacent beams or candidate beams according to the instruction received from the first base station to thereby determine the channel state of the target cell. For example, the at least one processor 750 may measure the strength of the signal received through one or more adjacent beams or candidate beams, calculate the average value of the measurement indicating the signal strength received from the first base station is not less than the reference value, and determine it as the channel measurement state of the cell. As another example, the at least one processor 750 may measure the strength of the signal received through one or more beams, and determine that the measurement of the beam showing the best signal strength is the channel measurement state of the cell.

[0107] According to various embodiments, at least one processor 750 may determine a signal strength measurement of an adjacent beam or a candidate beam to perform switching. For example, at least one processor 750 may determine a channel state value obtained from the first base station or stored in the electronic device 101 as a reference value, and select an adjacent beam or a candidate beam that exhibits a signal strength exceeding the reference value as a target beam. The beam strength measurement of an adjacent beam or a candidate beam may be determined using at least one of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), or a demodulation reference signal (DMRS) of a physical broadcast channel (PBCH) included in a synchronization signal / physical broadcast channel (SS / PBCH) block. As another example, at least one processor 750 may determine a signal strength measurement of an adjacent beam or a candidate beam using a channel state information-reference signal (CSI-RS) set by the first base station. The CSI-RS may be a CSI-RS set by the first base station to measure the signal strength of an adjacent beam or a candidate beam, or a CSI-RS set by the first base station in the electronic device 101 to allow calculation of a channel measurement result for each cell. As another example, the at least one processor 750 may determine the signal strength of an adjacent beam or a candidate beam using a reference signal (RS) for beam measurement configured in the electronic device 101 .

[0108] According to various embodiments, at least one processor 750 may obtain information related to performing a handover from the first base station. The handover execution related information may include a channel state reference value for performing a handover, information for determining the channel state of a candidate base station based on the strength of one or more adjacent beams or candidate beams, or information of at least one candidate base station. Using the handover execution related information obtained from the first base station, the at least one processor 750 may compare the channel state reference value with the signal strength measurement of the adjacent beam, and may determine the adjacent beam received via the second beam formed by the second antenna module 720 as the target beam for performing the handover based on the comparison result. For example, the adjacent beam determined as the target beam may be any one of the adjacent beams exceeding the channel state reference value or the adjacent beam with the best signal strength measured in the adjacent beam exceeding the channel state reference value. According to various embodiments, the handover execution related information may include handover offset information. In this case, the at least one processor 750 may prevent frequent handovers by determining the channel state reference value in a manner that adds or subtracts offset information to / from the channel state of the serving beam or the serving base station.

[0109] When the electronic device 101 performs communication with the first base station, the information of at least one candidate base station considers a list of at least one candidate base station as selectable as a target base station based on the channel state information measured for the candidate base station belonging to the neighboring base station, and may include at least one of the frequency band or cell ID of the at least one candidate base station. When the information of at least one candidate base station is obtained from the first base station, the at least one processor 750 may determine that the second base station forming the second beam with the second antenna module 720 is the target base station based on the list of at least one candidate base station. For example, the second base station may be a base station exhibiting the best channel state in the list of at least one candidate base station, or a base station selected from base stations exceeding the channel state reference value for performing switching.

[0110] According to various embodiments, the handover execution related information received by the electronic device 101 from the first base station may include a timer value indicating the time during which the information of at least one candidate base station is valid. For example, when the timer expires, the handover execution related information or the information of at least one candidate base station received from the first base station may no longer be valid. If the handover execution related information or the information of at least one candidate base station is no longer valid, the electronic device 101 may delete the information and obtain updated information from the first base station.

[0111] According to various embodiments, at least one processor 750 may perform a handover to a second base station in response to detecting an overheat state of the first antenna module 710. For example, at least one processor 750 may attempt to randomly access a second base station among candidate base stations belonging to a neighboring cell and send a radio resource control (RRC) connection reestablishment request. If the RRC connection reestablishment of the second base station is performed according to the request, the at least one processor 750 may receive an RRC connection establishment message from the second base station, change the existing adjacent beam received by the second beam formed between the second antenna module 720 and the second base station to a new service beam, and perform communication with the second base station.

[0112] According to various embodiments, when performing communication with the second base station using the second antenna module 720, the at least one processor 750 may periodically or continuously measure the temperature of the first antenna module 710 using the first temperature sensor 730. The at least one processor 750 may identify whether the temperature of the first antenna module 710 is a second threshold temperature or higher, and determine whether to include the first antenna module 710 or the first beam in the adjacent beam list. The second threshold temperature may be an adjacent beam measurement reference set for the first antenna module. For example, if it is identified that the temperature of the first antenna module 710 is equal to or higher than the second threshold temperature, the heat of the first antenna module 710 in an overheated state may be reduced in such a manner that the first antenna module 710 or the first beam is excluded from the adjacent beam list during a specified time so as not to perform channel state measurement on the first antenna module 710. The at least one processor 750 may add the first antenna module 710 or the first beam back to the adjacent beam list after the specified time has passed. According to various embodiments, when it is identified that the temperature of the first antenna module 710 is less than the second threshold temperature after the specified time, the at least one processor 750 may add the first antenna module 710 or the first beam to the adjacent beam list and perform periodic channel state measurement on the first beam formed by the first antenna module 710. If it is identified that the temperature of the first antenna module 710 is the second threshold temperature or even higher after the specified time has passed, the at least one processor 750 may suspend adding the first antenna module 710 or the first beam to the adjacent beam list until the temperature of the first antenna module 710 decreases to less than the second threshold temperature.

[0113] According to various embodiments, the memory 130 may store instructions that, when executed by at least one processor 750, control the electronic device 101 to change the antenna module used for transmission / reception with the base station using a measurement report process when an overheat state of the first antenna module 710 is detected. For example, the at least one processor 750 may perform communication with the first base station using the first beam via the first antenna module 710, and may measure the strength of the candidate beam or the adjacent beam using the second beam of the second antenna module 720. According to an embodiment, the at least one processor 750 may perform communication with the first base station using the first beam, and measure the strength of the service beam using the second beam of the second antenna module 720. During the above operation, the at least one processor 750 may determine whether the first antenna module 710 is in an overheat state based on the temperature of the first antenna module 710 obtained from the first temperature sensor 730. The at least one processor 750 may determine that the first antenna module 710 is in an overheat state when it is identified that the temperature of the first antenna module 710 is equal to or greater than the first threshold temperature set as the overheat reference temperature.

[0114] According to various embodiments, upon determining that the first antenna module 710 is in an overheated state, the at least one processor 750 may send a message including measurement report information to the base station, the measurement report information indicating that the signal strength measured for the second antenna module 720 is greater than the signal strength measured for the first antenna module 710 by a threshold value or more. The signal strength may be a reference signal received power (RSRP) or a beam reference signal received power (BRSRP). According to various embodiments, the at least one processor 750 may select a beam adjacent to the first beam (e.g., a beam formed in a direction slightly offset from the serving beam) from a plurality of beams formed for the base station, measure the signal strength, determine the measured signal strength as the signal strength of the serving beam received using the first beam via the first antenna module 710, and generate a message. According to various embodiments, the at least one processor 750 may stop the operation of the first antenna module 710 determined to be in an overheated state, measure the signal strength of the first beam and the signal strength of the second beam using the second antenna module 720, and generate a message. According to an embodiment, if it is identified that the signal strength of the second beam measured using the second antenna module 720 is greater than the signal strength of the first beam measured using the second antenna module 720 by a threshold value or more, the at least one processor 750 may send measurement information of the first beam and the second beam together with a message to the base station. According to various embodiments, if it is identified that the signal strength of the second beam is not greater than the signal strength of the serving beam by a threshold value or more, the at least one processor 750 may receive the existing serving beam through the second antenna module 720 and continue to communicate with the base station.

[0115] According to various embodiments, at least one processor 750 may receive a beam changing command corresponding to the transmitted message from the base station, and in response to the beam changing command, may be configured to receive a service beam through a second beam formed by the second antenna module 720 and perform communication with the base station.

[0116] According to various embodiments, in response to detecting an overheat state of the first antenna module 710, the at least one processor 750 may send a beam change request to the base station for changing one of the candidate beams capable of data transmission / reception using the second antenna module 720 to a service beam, instead of a message including a signal strength measurement result of the beam. For example, the at least one processor 750 may send the beam change request to the base station through a separate message or signaling, or may request a service beam change using a random access channel (RACH) signal. Upon receiving a beam change command corresponding to the beam change request from the base station, the at least one processor 750 may change the existing candidate beam received using the second beam via the second antenna module 720 to a new service beam, and continue to communicate with the base station.

[0117] According to various embodiments, while performing communication with a base station using the second antenna module 720, the at least one processor 750 may periodically or continuously measure the temperature of the first antenna module 710 using the first temperature sensor 730. The at least one processor 750 may identify whether the temperature of the first antenna module 710 is not less than a second threshold temperature set as a candidate beam measurement reference temperature of the first antenna module 710, and determine whether to include the first antenna module 710 or the first beam in the candidate beam list. For example, if it is identified that the temperature of the first antenna module 710 is equal to or higher than the second threshold temperature, the heat of the first antenna module 710 in an overheated state may be reduced in such a manner that the channel state measurement is not performed on the first antenna module 710 by excluding the first antenna module 710 or the first beam from the candidate beam list during a specified time. The at least one processor 750 may add the first antenna module 710 or the first beam back to the candidate beam list after the specified time has passed. According to various embodiments, when it is identified that the temperature of the first antenna module 710 is less than the second threshold temperature after the specified time, the at least one processor 750 may add the first antenna module 710 or the first beam to the candidate beam list and perform periodic channel state measurement on the first beam formed by the first antenna module 710. If it is identified that the temperature of the first antenna module 710 is the second threshold temperature or even higher after the specified time has passed, the at least one processor 750 may suspend adding the first antenna module 710 or the first beam to the candidate beam list until the temperature of the first antenna module 710 decreases to less than the second threshold temperature.

[0118] According to various example embodiments, an electronic device includes: a first antenna module including at least one antenna, configured to form a first beam and receive a service beam from a first base station; a second antenna module including at least one antenna, configured to form a second beam and measure the signal strength of a signal of an adjacent beam received from a second base station; a first temperature sensor configured to measure a temperature corresponding to the first antenna module; a second temperature sensor configured to measure a temperature corresponding to the second antenna module; at least one processor operatively connected to the first antenna module and / or the second antenna module; and a memory operatively connected to the at least one processor. The memory may store instructions that, when executed, cause the at least one processor to: determine whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from the first temperature sensor when performing communication with the first base station through the first antenna module, and based on determining that the first antenna module is in an overheated state, perform a handover to the second base station based on channel measurement information of the second base station.

[0119] According to various example embodiments, the instruction, when executed, may cause at least one processor to determine that the first antenna module is in an overheat state based on a temperature of the first antenna module being not less than a first threshold temperature set as an overheat reference temperature of the first antenna module.

[0120] According to various example embodiments, the instruction, when executed, may cause at least one processor to: obtain switching execution related information including a channel state reference value for switching from a first base station, compare the channel state reference value with a signal strength value measured for a second antenna module, and perform switching to a second base station based on the comparison result.

[0121] According to various example embodiments, the instructions, when executed, may cause at least one processor to obtain information of at least one candidate base station from a first base station and perform handover to a second base station based on the information of the at least one candidate base station.

[0122] According to various example embodiments, when the instruction is executed, it can cause at least one processor to control the electronic device to: send a radio resource control (RRC) connection reestablishment request to a second base station, receive an RRC connection establishment message corresponding to the request from the second base station, and perform communication with the second base station using a second antenna module.

[0123] According to various example embodiments, the instruction, when executed, may cause at least one processor to: identify whether the temperature of the first antenna module is not less than a second threshold temperature set as a reference temperature for adjacent beam intensity measurement of the first antenna module, exclude the first beam from the adjacent beam list based on the temperature of the first antenna module being not less than the second threshold temperature, and add the first beam to the adjacent beam list after a specified time has passed.

[0124] According to various example embodiments, the instructions, when executed, may cause at least one processor to: measure the temperature of the first antenna module using a first temperature sensor according to a specified time period and add the first beam to a neighboring beam list based on the measured temperature of the first antenna module being identified as being less than a second threshold temperature.

[0125] According to various example embodiments, an electronic device includes: a first antenna module including at least one antenna, configured to form a first beam and receive a service beam from a base station; a second antenna module including at least one antenna, configured to form a second beam and receive a candidate beam from the base station; a first temperature sensor, configured to measure a temperature corresponding to the first antenna module; a second temperature sensor, configured to measure a temperature corresponding to the second antenna module; at least one processor, operatively connected to the first antenna module and / or the second antenna module; and a memory, operatively connected to the at least one processor. The memory may store instructions that, when executed, cause at least one processor to: determine whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from a first temperature sensor when communicating with a base station using a first beam through a first antenna module and measuring the signal strength of a candidate beam using a second beam in a second antenna module; and based on determining that the first antenna module is in an overheated state, control an electronic device to: send a message to the base station including information indicating that the signal strength of the candidate beam measured from the second antenna module is greater than the signal strength of the service beam measured from the first antenna module by a threshold value or more, and receive a service beam changed from the candidate beam using the second beam in response to receiving a beam change command from the base station based on the sent message.

[0126] According to various example embodiments, the instruction, when executed, may cause at least one processor to: select a beam adjacent to the first beam from a plurality of beams formed for a base station, measure a signal strength received via the selected adjacent beam, determine the measured signal strength of the adjacent beam as the signal strength of the service beam measured from the first antenna module, and generate a message.

[0127] According to various example embodiments, the instructions, when executed, may cause at least one processor to: stop operation of a first antenna module that is determined to be in an overheated state, measure at least one of a signal strength of a first beam or a signal strength of a second beam using a second antenna module, and generate a message based on the measurement results.

[0128] According to various example embodiments, the instructions, when executed, may cause at least one processor to control an electronic device to send a message including information about the signal strength of the second beam to a base station based on the signal strength measurement of the second beam being identified as being greater than the signal strength measurement of the first beam by a threshold or more.

[0129] According to various example embodiments, when the instruction is executed, it may cause at least one processor to control the electronic device: based on the difference between the signal strength of the second beam measured using the second antenna module and the signal strength of the first beam being identified as being less than a threshold, the second antenna module is used to perform communication with the base station via the first beam.

[0130] According to various example embodiments, the instruction, when executed, may cause at least one processor to: identify whether the temperature of the first antenna module is not less than a second threshold temperature set as a candidate beam intensity measurement reference temperature for the first antenna module, exclude the first beam from the candidate beam list based on the temperature of the first antenna module being not less than the second threshold temperature, and add the first beam to the candidate beam list after a specified time has passed.

[0131] Fig. 8A , 8B 8C and 8D are perspective views showing configurations of internal modules packaged in an electronic device according to various embodiments.

[0132] Fig. 8A is a perspective view of the configuration of the modules enclosed in the housing of the electronic device 101 when viewed from one side, and Figure 8B A configuration of a first antenna module 870 included in the electronic device 101 is shown. Figure 8C shows a configuration of a second antenna module 880 included in the electronic device 101, and Fig.8D A configuration of a third antenna module 890 included in the electronic device 101 is shown.

[0133] refer to Fig. 8A , the electronic device 101 may include a main printed circuit board (PCB) 810, a sub-PCB 820, a battery 860, a first antenna module 870, a second antenna module 880 and / or a third antenna module 890 in a housing.

[0134] The main PCB 810 may include a plurality of conductive layers and a plurality of non-conductive layers alternately stacked with the conductive layers. The main PCB 810 may provide electrical connections between electronic components arranged on or outside the main PCB 810 using wires and conductive vias formed on or through the conductive layers.

[0135] According to various embodiments, the main PCB 810 may be electrically connected to other modules via a plurality of connectors or an interposer 830 or a flexible printed circuit board (FPCB) 850. For example, the main PCB 810 may be electrically connected to the sub-PCB 820 via the interposer 830, and the sub-PCB 820 may be electrically connected to the first antenna module 870, the second antenna module 880, and the third antenna module 890 via the FPCB 850.

[0136] According to various embodiments, the sub-PCB 820 may include a CP and an intermediate frequency integrated circuit (IFIC), and these components may be packaged in Fig. 8A The CP may include a communication processor (e.g., Figure 1 The wireless communication module 192, or Figure 2 The first communication processor 212 or the second communication processor 214 of the electronic device 101 is responsible for communication functions such as data transmission / reception, and can support LTE communication and / or 5G communication of the electronic device 101. According to various embodiments, the CP may include a first CP (e.g., Figure 2 A first communication processor 212) and a second CP supporting 5G network communication (e.g., Figure 2 The AP may be mounted on a PCB below the sub-PCB 820. The AP may include a processor responsible for controlling the electronic device 101 (e.g., Figure 1 The processor 120 or Figure 2 The processor 120 of the electronic device 101 may control at least one other component (eg, hardware or software component) of the electronic device 101 and perform various data processing or calculations. According to various embodiments, a temperature sensor may be added around the CP or AP to identify whether the CP or AP is overheated.

[0137] The FPCB 850 may include a millimeter wave transceiver control signal line, a PMIC control signal line, a PMIC power supply line, or a signal line for an IFIC.

[0138] According to various embodiments, the first antenna module 870 (eg, Figure 2 The third antenna module 246 of the first antenna module 870 may include a module PCB, a microwave transceiver, a PMIC, or an antenna array. For example, the millimeter wave transceiver or the PMIC may be disposed on a first surface of the module PCB of the first antenna module 870, and the antenna array may be disposed on a second surface different from the first surface. The antenna array may include a patch antenna array and transmit a signal in a first side direction of the electronic device 101 (for example, a right side direction of the electronic device 101). In order to identify whether the first antenna module 870 is overheated, as shown in FIG. Figure 8B As shown, a first temperature sensor 871 may be additionally provided. The first temperature sensor 871 may be provided on the main PCB 810 adjacent to the first antenna module 870, and may measure the temperature of the first antenna module 870 according to a specified period or continuously to identify the degree of heating. The first temperature sensor 871 may be connected to a CP or an AP, and the temperature information of the first antenna module 870 measured by the first temperature sensor 871 may be sent to the CP or the AP to determine whether it is overheated.

[0139] According to various embodiments, the second antenna module 880 (eg, Figure 2 The first antenna module 242 or the second antenna module 244) may include a module PCB, a microwave transceiver, a PMIC, or an antenna array. For example, the millimeter wave transceiver or the PMIC may be disposed on a first surface of the module PCB of the second antenna module 880, and the antenna array may be disposed on a second surface different from the first surface. According to various embodiments, the antenna array may include a dipole antenna array and a patch antenna array. The dipole antenna array may radiate signals in a second side direction of the electronic device 101 (e.g., a top direction of the electronic device 101), and the patch antenna array may radiate signals in a third side direction of the electronic device 101 (e.g., a direction perpendicular to the rear of the patch). In order to identify whether the second antenna module 880 is overheated, as Figure 8C As shown, a second temperature sensor 881 may be additionally provided. The second antenna module 880 may be provided to be spaced apart from the main PCB 810 by a predetermined distance, and when the second temperature sensor 881 is provided on the main PCB 810, the accuracy of the heat generation measurement of the second antenna module 880 may be reduced. For this reason, the second temperature sensor 881 may be provided on the module PCB of the second antenna module 880, and the temperature of the second antenna module 880 may be measured according to a specified period or continuously to identify the degree of heat generation. The second antenna module 880 including the dipole antenna array and the patch antenna array may include a module PCB having a relatively large area compared to other antenna modules. Therefore, the module PCB of the second antenna module 880 may have a space for encapsulating the second temperature sensor 881. The temperature information of the second antenna module 880 measured by the second temperature sensor 881 may be transmitted to the CP or AP, and the CP or AP may determine whether the second antenna module 880 is overheated based on the temperature information of the second antenna module 880 obtained from the second temperature sensor 881.

[0140] According to various embodiments, the third antenna module 890 (eg, Figure 2 The first antenna module 242 or the second antenna module 244) may include a module PCB, a microwave transceiver, a PMIC, or an antenna array. For example, a millimeter wave transceiver or a PMIC may be disposed on a first surface of the module PCB of the third antenna module 890, and the antenna array may be disposed on a second surface different from the first surface. The antenna array may include a patch antenna array and transmit a signal in a fourth side direction of the electronic device 101 (for example, a left side direction of the electronic device 101). In order to identify whether the third antenna module 890 is overheated, as shown in FIG. Fig.8DAs shown, a third temperature sensor 891 may be additionally provided. Since the third antenna module 890 is disposed adjacent to the battery 860 placed on the bottom of the main PCB 810, the third antenna module 890 may be spaced a large distance from the main PCB 810. Unlike the second antenna module 880, the third antenna module 890 may include only a patch antenna array and the size of the module PCB may not be large. Considering the limited modular PCB area of ​​the third antenna module 890 and the measurement accuracy of the third temperature sensor 891, the third temperature sensor 891 may be disposed at a position adjacent to the third antenna module 890 on the FPCB 850 and may measure the temperature of the third antenna module 890 according to a specified period or continuously, thereby identifying the degree of heating. The third temperature sensor 891 may be connected to the CP or AP to transmit the temperature information measured for the third antenna module 890 to the CP or AP.

[0141] According to various embodiments, the reference for determining the degree of heating of the antenna module may be set to be different for each antenna module. Although the temperature information measured by the temperature sensor corresponding to each antenna module inside the electronic device 101 may be proportional to the surface heating state of each antenna module, a different reference for determining heating information as shown in Table 1 may be set for each module, because the heat transferred to the outside of the antenna module may be different depending on the packaging structure or heat dissipation structure of each antenna module.

[0142] [Table 1]

[0143]

[0144] For example, if the overheat temperature of the first antenna module 870 measured by the first temperature sensor 871 is not less than 70 degrees Celsius set as the overheat reference temperature for the first antenna module, the first antenna module 870 may be determined to be in an overheat state. When the first antenna module 870 is identified as overheated, the electronic device 101 may use the second antenna module 880 or the third antenna module 890 instead of the first antenna module 870 to perform communication. When the second antenna module 880 or the third antenna module 890 is used to perform communication, the communication operation of the first antenna module 870 may be stopped to reduce the heat in the first antenna module 870. When the first antenna module 870 in an overheated state reduces heat, it may be determined whether to include it in the candidate beam list or the adjacent beam list based on 60 degrees set as the candidate beam measurement reference temperature for the first antenna module 870. For example, if the temperature of the first antenna module 870 is 60 degrees or higher, the first antenna module 870 may be excluded from the candidate beam list or the adjacent beam list for a specified time, and if the temperature of the first antenna module 870 drops below 60 degrees after the specified time has passed, the first antenna module 870 may be included back in the candidate beam list or the adjacent beam list. Referring to Table 1, the overheat reference temperature and the candidate beam measurement reference temperature of the second antenna module 880 or the third antenna module 890 may be set to be different from the overheat reference temperature and the candidate beam measurement reference temperature of the first antenna module 870, and may be used as a heating state determination reference when the second antenna module 880 or the third antenna module 890 is operating. The overheat reference temperature and the candidate beam measurement reference temperature of each antenna module may be set as a hysteresis condition of each antenna module to prevent state changes when heating is determined. The heating information determination reference of each module shown in Table 1 is provided only as an example and is not limited by any embodiment, but may be set to various values ​​in consideration of the placement of the temperature sensor corresponding to each antenna module.

[0145] Fig. 9 900 is a block diagram showing an example configuration of main modules installed in an electronic device according to various embodiments. Fig. 9 In FIG. 1 , connections associated with communication and data signals may be depicted with solid lines, and connections associated with temperature information measured by a temperature sensor may be depicted with dashed lines.

[0146] According to various embodiments, the electronic device 101 may include a first antenna module (e.g., including at least one antenna) 910, a first temperature sensor 911, a second antenna module (e.g., including at least one antenna) 920, a second temperature sensor 921, a third antenna module (e.g., including at least one antenna) 930, a third temperature sensor 931, a CP 940, a fourth temperature sensor 941, an AP 950, a fifth temperature sensor 951 and / or an IFIC 960.

[0147] refer to Fig. 9 , and the first antenna module 910 (eg, Figure 2 The first temperature sensor 911 corresponding to the third antenna module 246 of the main PCB 810 may be mounted on the main PCB 810 adjacent to the first antenna module 910 and connected to the CP 940 (eg, Figure 1 The wireless communication module 192, or Figure 2 The first communication processor 212 or the second communication processor 214) or the AP 950 (e.g., Figure 1 The processor 120 or Figure 2 The first antenna module 910 and the first temperature sensor 911 can be respectively connected to the processor 120. Figure 8B The first antenna module 870 corresponds to the first temperature sensor 871 .

[0148] With the second antenna module 920 (eg, Figure 2 The second temperature sensor 921 corresponding to the first antenna module 242 or the second antenna module 244 may be mounted on the module PCB of the second antenna module 920 and may be connected to the CP 940 or the AP 950 through the FPCB 850. The second antenna module 920 and the second temperature sensor 921 may be respectively connected to the Figure 8C The second antenna module 880 corresponds to the second temperature sensor 881 .

[0149] With the third antenna module 930 (eg, Figure 2 The third temperature sensor 931 corresponding to the first antenna module 242 or the second antenna module 244 may be mounted on the FPCB 850 adjacent to the third antenna module 930 and may be connected to the CP 940 or the AP 950 through the FPCB 850. The third antenna module 930 and the third temperature sensor 931 may be respectively connected to the Fig.8D The third antenna module 890 corresponds to the third temperature sensor 891 .

[0150] The fourth temperature sensor 941 is a module for measuring temperature information corresponding to the CP 940 , and may be mounted on the sub PCB 820 adjacent to the CP 940 and may be connected with the CP 940 or the AP 950 through a signal line included in the sub PCB 820 .

[0151] The fifth temperature sensor 951 is a module for measuring temperature information corresponding to the AP 950 , and may be mounted on the main PCB 810 adjacent to the CP 950 and may be connected with the CP 940 or the AP 950 through a signal line included in the main PCB 810 .

[0152] The IFIC 960 may exchange an intermediate frequency (IF) signal with the first antenna module 910 , the second antenna module 920 , or the third antenna module 930 and may exchange a baseband in-phase / quadrature (I / Q) signal with the CP 940 .

[0153] According to various embodiments, the first to fifth temperature sensors 911, 921, 931, 941, and 951 may be connected to the CP 940 or the AP 950. For example, temperature information measured by the first to fifth temperature sensors 911, 921, 931, 941, and 951 may be transmitted to the AP 950, and the AP 950 may determine the degree of heating of each module and transmit the determination result to the CP 940. As another example, the temperature information measured by the first to fifth temperature sensors 911, 921, 931, 941, and 951 may be transmitted to the CP 940, and the CP 940 may directly determine the degree of heating of each module.

[0154] Fig.10 is a circuit diagram illustrating a configuration of internal modules in an electronic device according to various embodiments.

[0155] refer to Fig.10 , the antenna array 1010 may be configured in a form where n antennas are spaced apart from each other at predetermined intervals. The antenna array 1010 may be connected to a switch module 1020 and may be connected to a transmit (Tx) chain during transmission and may be connected to a receive (Rx) chain during reception during time division duplex (TDD) communication.

[0156] The Tx chain inside RFIC 1030 may include a power amplifier (PA), a first variable gain amplifier (VGA), a phase shifter (PS), a second VGA, an n-way transmit (Tx) separator, or a mixer. The PA may be installed inside or outside the RFIC 1030 to perform high-power amplification on the Tx signal. Each VGA may perform an automatic gain control operation on the Tx signal according to the control of CP 1050, and the number of VGAs may be increased or decreased according to the situation. The PS may shift the phase of the Tx signal according to the beamforming angle according to the control of CP 1050. The n-way Tx separator may divide the Tx signal received from the mixer into n signals. The mixer may up-convert the Tx-IF signal received from IFIC 1040 into an RF band Tx signal, and in the process, the signal to be mixed may be obtained from an internal or external oscillator.

[0157] The Rx chain inside RFIC 1030 may include a low noise amplifier (LNA), a phase shifter (PS), a first VGA, an n-way receive (Rx) combiner, a second VGA, or a mixer. The LAN can perform low noise amplification on the signal received from the antenna array 1010. Each VGA can perform an automatic gain control operation on the Rx signal according to the control of CP 1050, and the number of VGAs can be increased or decreased according to the situation. PS can move the phase of the Tx signal according to the beamforming angle according to the control of CP 1050. The n-way Rx combiner can combine the phase-shifted and phase-aligned signals, and the combined signal can be transmitted to the mixer through the second VGA. The mixer can down-convert the received signal from the RF band to the IF band, and in this process, the signal to be mixed can be obtained from an internal or external oscillator.

[0158] A switch for selectively connecting the Tx / Rx chain may be further included at the rear end of the mixer in the RFIC 1030. When the IF frequency is high, the transmission line connection between the RFIC 1030 and the IFIC 1040 may be complicated. By selectively connecting the Tx chain and the Rx chain using a switch during TDD operation, the number of transmission lines between the RFIC 1030 and the IFIC 1040 may be reduced. Similar to the RFIC 1030, the IFIC 1040 may also include a switch for selectively connecting the Tx chain or the Rx chain.

[0159] The Tx chain inside IFIC 1040 may include an orthogonal mixer, a third VGA, a low pass filter (LPF), a fourth VGA, or a buffer. The buffer acts as a buffer when receiving a balanced Tx I / Q signal from CP 1050, thereby enabling stable signal processing. The third VGA and the fourth VGA may perform an automatic gain control operation on the Tx signal according to the control of CP 1050. The LPF may act as a channel filter to allow the bandwidth of the baseband Tx I / Q signal to operate as a cutoff frequency. The cutoff frequency may vary depending on the situation. The orthogonal mixer may up-convert the balanced Tx I / Q signal to a transmission intermediate frequency (Tx-IF) signal.

[0160] The Rx chain inside IFIC 1040 may include an orthogonal mixer, a third VGA, an LPF, a fourth VGA, or a buffer. The buffer may act as a buffer in the process of transmitting the balanced Rx I / Q signal through the fourth VGA to CP 1050, thereby allowing stable processing of the signal. The third VGA and the fourth VGA may perform automatic gain control operations on the Rx signal according to the control of CP 1050. The LPF may act as a channel filter to allow the bandwidth of the baseband Rx I / Q signal to be used as a cutoff frequency. The cutoff frequency may vary depending on the situation. The orthogonal mixer may down-convert the signal into an Rx-IF signal, thereby generating a balanced RxI / Q signal.

[0161] A Tx I / Q digital-to-analog converter (DAC) inside the CP 1050 may convert a digital signal modulated by the modem into a balanced Tx I / Q signal and transmit it to the IFIC 1040. An Rx I / Q analog-to-digital converter (ADC) inside the CP 1050 may convert a balanced Rx I / Q signal down-converted by the IFIC 1040 into a digital signal and transmit it to the modem.

[0162] Fig.11 1 is a flowchart illustrating an example method for performing beam changing using a switching process by an electronic device according to various embodiments. According to an embodiment, in response to detecting an overheating state of an antenna module operating for data transmission / reception, the electronic device 101 may use a switching process to change the antenna module used for data transmission / reception with a base station. Fig.11 The operation may be performed by at least one processor (eg, Figure 7 at least one processor 750, Figure 1 The processor 120 or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0163] refer to Fig.11 In operation 1110, the electronic device 101 may obtain the handover execution related information from the first base station. The handover execution related information received from the first base station may be included in a dedicated or UE-specific RRC signal and received. The handover execution related information may include a channel state reference value for performing handover, information for determining a channel state of a candidate base station based on measurement of one or more beams, or information of at least one candidate base station. The information of at least one candidate base station is transmitted to the electronic device 101 (for example, Figure 1The electronic device 101) performs communication with the first base station and considers a list of at least one candidate base station as selectable as a target base station based on the channel state information measured for the candidate base station belonging to the adjacent cell, and may include at least one of the frequency band or cell ID of the at least one candidate base station. The handover execution related information received from the first base station may include a timer value indicating the time during which the handover execution related information is valid. According to an embodiment, when the timer expires, the channel state reference value for performing the handover or the information of at least one candidate base station received from the first base station may no longer be valid. If the handover execution related information or the information of at least one candidate base station is no longer valid, the electronic device 101 may delete the information and obtain updated information from the first base station.

[0164] In operation 1120, the electronic device 101 may determine whether the first antenna module 710 is in an overheated state when receiving a service beam via a first beam formed in a direction toward the first base station and communicating with the first base station. In operation 1120, the electronic device 101 may measure the signal strength of an adjacent beam received from the second base station using a second beam formed by the second antenna module 720. Whether the first antenna module 710 is overheated may be determined based on obtaining the temperature of the first antenna module 710 from a first temperature sensor 730 included in the first antenna module 710 or disposed adjacent to the first antenna module 710. The first temperature sensor 730 may periodically or continuously measure the temperature of the first antenna module 710 when the first antenna module 710 performs a communication operation. For example, if it is identified that the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature set as an overheat reference, the electronic device 101 may determine that the first antenna module 710 is in an overheated state.

[0165] In operation 1130, in response to detecting the overheating state of the first antenna module 710, the electronic device 101 may determine the second base station to perform switching based on the channel measurement information. According to an embodiment, the electronic device 101 may compare the channel state reference value with the signal strength measurement of the adjacent beam based on the switching execution related information obtained in operation 1110, and may determine the adjacent beam measured via the second beam formed by the second antenna module 720 as the target beam for performing switching based on the comparison result. For example, the adjacent beam determined as the target beam may be any one of the adjacent beams exceeding the channel state reference value or the adjacent beam in which the best signal strength is measured among the adjacent beams exceeding the channel state reference value. For example, the switching execution related information may be switching offset information. In this case, the at least one processor 750 may prevent frequent switching by determining the channel state reference value in a manner of adding or subtracting offset information to / from the channel state of the serving beam or the serving base station. According to various embodiments, the electronic device 101 may determine the second base station that forms the second beam with the second antenna module 720 as the target base station based on the list of at least one candidate base station obtained in operation 1110. For example, the second base station may be a base station exhibiting the best channel state in a list of at least one candidate base station, or a base station selected from base stations exceeding a channel state reference value for performing handover.

[0166] According to various embodiments of the present invention, the electronic device 101 may receive an instruction regarding channel state measurement of one or more beams from the first base station as a condition for performing switching, and may measure the strength of one or more beams according to the instruction received from the first base station, thereby measuring the channel state of the target base station. For example, the electronic device 101 may measure the strength of a signal received through one or more beams, calculate an average of the measurements indicating that the signal strength is not less than a reference value determined by the first base station, and determine it as the channel measurement state of the base station. As another example, the electronic device 101 may measure the strength of a signal received through one or more beams, and determine that the measurement of the beam showing the best signal strength is the channel measurement state of the cell.

[0167] In operation 1140, in response to detecting an overheat state of the first antenna module 710, the electronic device 101 may perform a handover to a second base station. For example, the electronic device 101 may attempt to randomly access a second base station among candidate base stations belonging to a neighboring cell and send an RRC connection reestablishment request. If the RRC connection reestablishment of the second base station is performed according to the request, the at least one processor 750 may receive an RRC connection establishment message from the second base station, change the existing candidate beam received by the second beam formed between the second antenna module 720 and the second base station to a new service beam, and perform communication with the second base station.

[0168] According to any one of the various embodiments, a method for performing beam changing by an electronic device including multiple antenna modules and multiple temperature sensors configured to measure a temperature corresponding to each of the multiple antenna modules may include: when using a first beam formed by a first antenna module to receive a service beam to perform communication with a first base station and using a second beam formed by a second antenna module to measure the signal strength of an adjacent beam, determining whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from a first temperature sensor, and based on the first antenna module being determined to be in an overheated state, performing switching to a second base station based on channel measurement information of the second base station.

[0169] According to various example embodiments, determining whether the first antenna module is in an overheat state may include determining that the first antenna module is in an overheat state based on a temperature of the first antenna module being not less than a first threshold temperature set as an overheat reference temperature of the first antenna module.

[0170] According to various example embodiments, performing a handover to a second base station may include obtaining handover execution related information including a channel state reference value for handover from a first base station, comparing the channel state reference value with a signal strength value measured for a second antenna module, and performing a handover to the second base station based on a comparison result.

[0171] According to various example embodiments, performing the handover to the second base station may include obtaining information of at least one candidate base station from the first base station and performing the handover to the second base station based on the information of the at least one candidate base station.

[0172] According to various example embodiments, the method may further include sending a radio resource control (RRC) connection reestablishment request to a second base station, receiving an RRC connection establishment message corresponding to the request from the second base station, and performing communication with the second base station using a second beam through a second antenna module.

[0173] According to various example embodiments, the method may further include identifying whether the temperature of the first antenna module is not less than a second threshold temperature set as an adjacent beam intensity measurement reference temperature of the first antenna module, excluding the first beam from the adjacent beam list if the temperature of the first antenna module is not less than the second threshold temperature, and adding the first beam to the adjacent beam list after a specified time has passed.

[0174] According to various example embodiments, adding the first antenna module to the adjacent beam list after a specified time has elapsed may include measuring the temperature of the first antenna module according to a specified time period using a first temperature sensor, and adding the first beam to the adjacent beam list if the measured temperature of the first antenna module is identified as being less than a second threshold temperature.

[0175] Fig.12 is a flow chart illustrating example operations of performing beam changing using a switching process by an electronic device in accordance with various embodiments. Fig.12 The operation may be performed by the electronic device 101 including at least one processor (eg, Figure 7 at least one processor 750, Figure 1 The processor 120 or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0176] refer to Fig.12 In operation 1210, the electronic device 101 (eg, Figure 1 The electronic device 101) can receive a service beam from a first base station using a first beam formed by the first antenna module 710 and can perform communication. When the first antenna module 710 communicates with the first base station, the second antenna module 720 can be enabled when performing adjacent beam measurements. For example, if the second antenna module 720 is enabled to perform channel state measurements of adjacent beams, the second antenna module 720 can form a second beam with the second base station to receive the adjacent beam and report the measurement results of the adjacent beam (e.g., SSB or CSI-RS signal measurement results) to the first base station. According to various embodiments, the electronic device 101 can perform communication with the first base station using the first beam and measure the strength of the service beam using the second beam of the second antenna module 720.

[0177] In operation 1220, the electronic device 101 may identify whether the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature. The first threshold temperature is a temperature set as a reference for determining whether the first antenna module 710 is overheated, and when it is identified that the temperature of the first antenna module 710 is higher than the first threshold temperature ("Yes" in 1220), it may be determined that the first antenna module 710 is in an overheated state.

[0178] In operation 1230, in response to detecting an overheat state of the first antenna module 710, the electronic device 101 may stop the communication operation of the first antenna module 710 and perform handover to a second base station using the second antenna module 720, sending an RRC connection reestablishment request to the second base station.

[0179] In operation 1240, the electronic device 101 may identify whether the RRC connection establishment message received from the second base station has been completed. If the RRC connection establishment with the second base station is identified ("Yes" in 1240), the electronic device 101 may change the existing neighboring beam received using the second beam to a new service beam and may perform communication with the second base station. According to various embodiments, if the electronic device 101 does not receive the RRC connection establishment message within a specified time ("No" in 1240), the electronic device 101 may retransmit the RRC connection establishment request message to the second base station.

[0180] In operation 1250, the electronic device 101 may identify whether the temperature of the first antenna module 710 is equal to or greater than the second threshold temperature. The second threshold temperature may be an adjacent beam measurement reference temperature set for the first antenna module. If it is identified in operation 1250 that the temperature of the first antenna module 710 is equal to or greater than the second threshold temperature ("yes" in 1250), the electronic device 101 may receive the service beam using the second beam formed by the second antenna module 720 and exclude the first antenna module 710 or the first beam from the adjacent beam list for a specified time so as not to perform channel state measurement on the first beam in operation 1251, thereby reducing the heat of the first antenna module 710 in an overheated state. In operation 1260, the electronic device 101 may identify whether the specified time has passed ("yes" in 1260) and determine whether to include the first antenna module 710 or the first beam back into the adjacent beam list. For example, when it is identified that the temperature of the first antenna module 710 is less than the second threshold temperature after the specified time, the electronic device 101 may add the first antenna module 710 or the first beam to the adjacent beam list and perform periodic channel state measurement on the first beam formed by the first antenna module 710. If it is identified that the temperature of the first antenna module 710 is the second threshold temperature or higher even after the specified time has passed, the electronic device 101 may suspend adding the first antenna module 710 or the first beam to the adjacent beam list until the temperature of the first antenna module 710 drops below the second threshold temperature.

[0181] If it is identified in operation 1250 that the temperature of the first antenna module 710 is less than the second threshold temperature ("No" in 1250), the electronic device 101 can use the second beam formed by the second antenna module 720 to receive the service beam, communicate with the second base station, and perform periodic channel state measurement on the first beam in operation 1252.

[0182] Fig.13 is a signal flow diagram illustrating an example process for performing beam changing by an electronic device according to various embodiments. Fig.13In the example, the first base station 1310 is a serving base station (eg, Figure 4 The second base station 1320 may be a base station belonging to a neighboring cell adjacent to the cell to which the first base station belongs (e.g., Figure 4 gNB or NR base station 450).

[0183] refer to Fig.13 In operation 1301, the electronic device 101 (eg, Figure 1 The electronic device 101) can communicate with the first base station 1310 using the first beam. The first beam is a beam formed by the first antenna module 710 in a direction toward the first base station 1310, and the electronic device 101 can receive a service beam from the first base station 1310 via the first beam. When communicating with the first base station 1310 using the first beam, the electronic device 101 can use another antenna module (e.g., the second antenna module 720) to measure the channel state of an adjacent beam. For example, the second antenna module 720 can be enabled only during adjacent beam measurement, and the measurement result of the received signal of the second beam formed toward the second base station (e.g., SSB or CSI-RS signal measurement result) is reported to the first base station 1310.

[0184] In operation 1303, the electronic device 101 may obtain handover execution related information from the first base station 1310. The handover execution related information received from the first base station 1310 may be included in a dedicated or UE-specific RRC signal and received. According to various embodiments, the handover execution related information may include a channel state reference value for performing handover, handover offset information, information for determining the channel state of a candidate base station by measuring the strength of one or more adjacent beams or candidate beams, or information of at least one candidate base station. If the channel state reference value information for performing handover is obtained from the first base station, the electronic device 101 may compare the channel state reference value with the signal strength measurement of the adjacent beam, and may determine the existing adjacent beam received via the second beam formed by the second antenna module 720 as the target beam for performing handover based on the comparison result. According to various embodiments, a method for measuring an existing service beam using the second beam formed by the second antenna module 720 is also possible. According to various embodiments, the adjacent beam determined as the target beam may be any one of the adjacent beams exceeding the channel state reference value or the adjacent beam with the best signal strength measured among the adjacent beams exceeding the channel state reference value. If the switching offset information is obtained from the first base station, the electronic device 101 may determine the channel state reference value by adding or subtracting the offset information to / from the channel state of the second base station or the serving beam.

[0185] According to various embodiments, the information of at least one candidate base station is considered as a list of at least one candidate base station selectable as a target base station based on the channel state information measured for the candidate base station belonging to the neighboring cell when the electronic device 101 performs communication with the first base station, and may include at least one of the frequency band or cell ID of the at least one candidate base station. When obtaining the information of at least one candidate base station from the first base station, the electronic device 101 may determine that the second base station forming the second beam with the second antenna module 720 is the target base station based on the list of at least one candidate base station. For example, the second base station may be a base station exhibiting the best channel state in the list of at least one candidate base station or a base station selected from the candidate base stations exceeding the channel state reference value for performing the handover.

[0186] According to various embodiments, in operation 1303, the handover execution related information received by the electronic device 101 from the first base station may include a timer value indicating a time during which the information of at least one candidate base station is valid. For example, when the timer expires, the handover execution related information or the information of at least one candidate base station received from the first base station may no longer be valid. If the handover execution related information or the information of at least one candidate base station is no longer valid, the electronic device 101 may delete the information and obtain updated information from the first base station.

[0187] In operation 1305, the electronic device 101 may detect overheating of the first antenna module 710 performing communication with the first base station 1310. Whether the first antenna module 710 is overheated may be determined based on temperature information obtained from the first temperature sensor 730 included in the first antenna module 710 or disposed adjacent to the first antenna module 710. For example, when communicating with the first base station 1310 using the first antenna module 710, if it is identified that the temperature of the first antenna module 710 is equal to or greater than the first threshold temperature set as the overheat reference temperature, the electronic device 101 may determine that the first antenna module 710 is in an overheated state.

[0188] In operation 1307, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may stop the operation of the first antenna module 710 and determine to perform a handover to the second base station 1320 determined as the target base station. The electronic device 101 may attempt to randomly access the second base station 1320 in operation 1309, and may send an RRC connection reestablishment request to the second base station 1320 in operation 1311. According to various embodiments, a method is also possible in which the channel state of the service beam measured by the second antenna module 720 is compared with a reference from the first base station, and data transmission / reception is continued using the service beam of the first base station without performing a handover.

[0189] If an RRC connection establishment message is received from the second base station 1320 in operation 1313, the electronic device 101 may send an RRC connection establishment completion message to the second base station 1320 in operation 1315 to complete the handover process. If the handover process is completed, the electronic device 101 may change the existing neighboring beam received using the second beam via the second antenna module 720 to a new serving beam and perform communication with the second base station 1320.

[0190] Fig.14 1 is a flowchart illustrating an example method for performing beam changing using a measurement report procedure by an electronic device according to various embodiments. According to an embodiment, in response to detecting an overheat state of an antenna module operating for data transmission / reception, the electronic device 101 may use the measurement report procedure to change the antenna module used for data transmission / reception with a base station. Fig.14 The operation may be performed by at least one processor (eg, Figure 7 at least one processor 750, Figure 1 The processor 120 or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0191] refer to Fig.14 In operation 1410, the electronic device 101 (eg, Figure 1 The electronic device 101 may determine whether the first antenna module 710 is in an overheated state when receiving a service beam using a first beam formed by the first antenna module 710 and performing communication with a base station. In operation 1410, the electronic device 101 may measure the signal strength of a candidate beam received from a base station using a second beam formed by the second antenna module 720. Whether the first antenna module 710 is overheated may be determined based on the temperature of the first antenna module 710 obtained from a first temperature sensor 730 included in the first antenna module 710 or disposed adjacent to the first antenna module 710. The first temperature sensor 730 may periodically or continuously measure the temperature of the first antenna module 710 when the first antenna module 710 performs a communication operation. For example, if it is identified that the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature set as an overheat reference temperature, the electronic device 101 may determine that the first antenna module 710 is in an overheated state.

[0192] In operation 1420, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may transmit to the base station a message including measurement report information about the signal strength measured from the first antenna module 710 or the second antenna module 720. For example, the measurement report information may indicate that the signal strength measured from the second antenna module 720 is greater than the signal strength measured from the first antenna module 710 by a threshold value or more. The signal strength may be RSRP or BRSRP.

[0193] According to various embodiments, the electronic device 101 may select a beam adjacent to the first beam (e.g., a beam formed in a direction slightly deviated from the service beam) from a plurality of beams formed for the base station, measure the signal strength, determine the measured signal strength as the signal strength of the service beam received using the first beam via the first antenna module 710, and generate measurement report information. According to various embodiments, the electronic device 101 may stop the operation of the first antenna module 710 determined to be in an overheated state, measure the signal strength of the first beam and the signal strength of the second beam using the second antenna module 720, and generate measurement report information. If it is identified that the signal strength of the second beam measured using the second antenna module 720 is greater than the signal strength of the first beam measured using the second antenna module 720 by a threshold value or more, the electronic device 101 may include the measurement of the first beam and the second beam in a message and send it to the base station. According to various embodiments, if it is identified that the signal strength of the second beam is not greater than the signal strength of the service beam by a threshold value or more, the electronic device 101 may receive the existing service beam through the second antenna module 720 and continue to communicate with the base station.

[0194] In operation 1430, the electronic device 101 may receive a beam change command corresponding to the transmitted message from the base station. When receiving the beam change command from the base station, the electronic device 101 may be configured to receive the service beam using the second beam through the second antenna module 720, and perform communication with the base station using the second antenna module 720. According to various embodiments, the beam change command may be a handover command. In other words, the beam change command may be a message indicating a change to a beam transmitted from a neighboring base station according to a determination by the base station based on a measurement result from the terminal. When receiving a handover command as a beam change command from the base station, the electronic device 101 may be configured to perform handover to the second base station via the second antenna module 720, and receive the service beam using the second beam and perform communication with the second base station using the second antenna module 720. According to various embodiments, in order to receive the beam change command from the base station, the electronic device 101 may send a beam change request for receiving the service beam via the second beam to the base station instead of a message about the measurement report information of operation 1420. For example, the electronic device 101 may send a beam changing request to the base station through a separate message or signaling, or may request a serving beam change using a random access channel (RACH) signal.

[0195] In operation 1440, the electronic device 101 may receive a serving beam using a second beam formed by the second antenna module 720 based on the beam changing command and perform communication with the base station.

[0196] Fig.15 is a flow diagram illustrating example operations for performing beam changing using a measurement reporting procedure by an electronic device in accordance with various embodiments. Fig.15 The operation may be performed by at least one processor (eg, Figure 7 at least one processor 750, Figure 1 processor 120, or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0197] refer to Fig.15 In operation 1510, the electronic device 101 (eg, Figure 1The electronic device 101) can receive a service beam from a base station using a first beam formed by the first antenna module 710 and can perform communication. When the first antenna module 710 communicates with the base station, the second antenna module 720 can be enabled only when performing adjacent beam measurement. For example, if the second antenna module 720 is enabled to perform channel state measurement of a candidate beam, the second antenna module 720 can form a second beam with the base station to receive the candidate beam and report the measurement result of the candidate beam (e.g., SSB or CSI-RS signal measurement result) to the base station. According to various embodiments, the electronic device 101 can perform communication with the first base station using the first beam and measure the strength of the service beam using the second beam of the second antenna module 720.

[0198] In operation 1520, the electronic device 101 may identify whether the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature. The first threshold temperature is a temperature set as a reference for determining whether the first antenna module 710 is overheated, and when it is identified that the temperature of the first antenna module 710 is higher than the first threshold temperature ("Yes" in 1520), it may be determined that the first antenna module 710 is in an overheated state.

[0199] In operation 1530, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may send a message including measurement report information about the signal strength measured from the first antenna module 710 or the second antenna module 720 to the base station to change the serving beam. The measurement report information may indicate that the signal strength of the candidate beam measured from the second antenna module 720 is greater than the signal strength of the serving beam measured from the first antenna module 710 by a threshold value or more.

[0200] In operation 1540, the electronic device 101 may identify whether a beam change command is received from a base station. When a beam change command is received from a base station ("Yes" in 1540), the electronic device 101 may be configured to receive a service beam using a second beam through the second antenna module 720, and perform communication with the base station using the second antenna module 720. According to various embodiments, the beam change command may be a handover command. In other words, the beam change command may be a message indicating a change to a beam transmitted from a neighboring base station according to a determination by the base station based on a measurement result from the terminal. When a handover command as a beam change command is received from a base station, the electronic device 101 may be configured to perform a handover to a second base station via the second antenna module 720, and receive a service beam using a second beam and perform communication with the second base station using the second antenna module 720. According to various embodiments, if the electronic device 101 does not receive a beam change command within a specified time ("No" in 1540), the electronic device 101 may retransmit a message including measurement report information to the base station.

[0201] In operation 1550, the electronic device 101 may identify whether the temperature of the first antenna module 710 is equal to or greater than the second threshold temperature. The second threshold temperature may be a candidate beam measurement reference temperature set for the first antenna module. If it is identified in operation 1550 that the temperature of the first antenna module 710 is equal to or greater than the second threshold temperature ("yes" in 1550), the electronic device 101 may receive the service beam using the second beam formed by the second antenna module 720, and exclude the first antenna module 710 or the first beam from the candidate beam list for a specified time so as not to perform channel state measurement on the first beam in operation 1551, thereby reducing the heat of the first antenna module 710 in an overheated state. In operation 1560, the electronic device 101 may identify whether the specified time has passed ("yes" in 1560) and determine whether to include the first antenna module 710 or the first beam back into the candidate beam list. For example, when it is identified that the temperature of the first antenna module 710 is less than the second threshold temperature after the specified time, the electronic device 101 may add the first antenna module 710 or the first beam to the candidate beam list and perform periodic channel state measurement on the first beam formed by the first antenna module 710. If it is identified that the temperature of the first antenna module 710 is the second threshold temperature or higher even when the specified time has passed, the electronic device 101 may suspend adding the first antenna module 710 or the first beam to the candidate beam list until the temperature of the first antenna module 710 drops below the second threshold temperature.

[0202] If it is identified in operation 1550 that the temperature of the first antenna module 710 is less than the second threshold temperature ("No" in 1550), the electronic device 101 can receive the service beam using the second beam through the second antenna module 720, communicate with the base station, and perform periodic channel state measurement on the first beam in operation 1552.

[0203] Fig.16 is a flow diagram illustrating example operations for performing beam changing via a beam changing request by an electronic device in accordance with various embodiments. Fig.16 The operation may be performed by at least one processor (eg, Figure 7 at least one processor 750, Figure 1 The processor 120 or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0204] refer to Fig.16In operation 1610, the electronic device 101 may receive a service beam via a first beam formed by a base station and the first antenna module 710 and perform communication. When the first antenna module 710 communicates with the base station, the second antenna module 720 may be enabled only when performing adjacent beam measurement. According to various embodiments, the electronic device 101 may perform communication with the first base station using the first beam and measure the strength of the service beam using the second beam of the second antenna module 720.

[0205] In operation 1620, the electronic device 101 may identify whether the temperature of the first antenna module 710 is equal to or greater than a first threshold temperature set as a reference for determining overheating. If the temperature of the first antenna module 710 is equal to or greater than the first threshold temperature ("Yes" in 1620), the electronic device 101 may determine that the first antenna module 710 is in an overheated state.

[0206] In operation 1630, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may transmit to the base station a beam change request for receiving a service beam via a second beam formed by the second antenna module 720. For example, the electronic device 101 may transmit the beam change request to the base station through a separate message or signaling, or may request a service beam change using a RACH signal.

[0207] In operation 1640, the electronic device 101 may identify whether a beam change command is received from the base station. When a beam change command is received from the base station ("Yes" in 1640), the electronic device 101 may be configured to receive a service beam using a second beam through the second antenna module 720, and perform communication with the base station using the second antenna module 720. According to various embodiments, if the electronic device 101 does not receive a beam change command within a specified time ("No" in 1640), the electronic device 101 may retransmit a message including a beam change request to the base station.

[0208] Operations 1650 and 1660 may be performed with Fig.15 Operations 1550 and 1560 correspond.

[0209] Fig.17 is a signal flow diagram illustrating an example process for performing beam changing by an electronic device according to various embodiments. Fig.17 In the embodiment, the base station 1710 is a serving base station (e.g., gNB) that sends and receives data through a wireless connection with the electronic device 101 and can communicate with the Figure 4 Corresponding to the NR base station 450.

[0210] refer to Fig.17In operation 1701, the electronic device 101 may communicate with the base station 1710 using a first beam. The first beam may be a beam formed between the first antenna module 710 of the electronic device 101 and the base station 1710, and may be a beam configured to receive a service beam from the base station. When performing communication with the base station 1710 using the first beam, the electronic device 101 may measure the channel state of the candidate beam using another antenna module (e.g., the second antenna module 720). For example, the second antenna module 720 may be enabled only when the candidate beam is measured, and the measurement result of the received signal of the second beam formed toward the base station 1710 (e.g., SSB or CSI-RS signal measurement result) may be reported to the base station 1710.

[0211] In operation 1703, the electronic device 101 may detect overheating of the first antenna module 710 performing communication with the base station 1710. Whether the first antenna module 710 is overheated may be determined based on temperature information obtained from the first temperature sensor 730 disposed adjacent to the first antenna module 710. For example, when communicating with the base station 1710 using the first antenna module 710, if it is identified that the temperature of the first antenna module 710 is equal to or greater than the first threshold temperature set as the overheat reference temperature, the electronic device 101 may determine that the first antenna module 710 is in an overheated state.

[0212] In operation 1705, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may send a message including measurement report information or a beam change request to the base station 1710. According to various embodiments, the measurement report information may be considered as a signal strength measured from the first antenna module 710 or the second antenna module 720, and may indicate that the signal strength of the candidate beam measured from the second antenna module 720 is greater than the signal strength of the service beam measured from the first antenna module 710 by a threshold value or more. For example, the electronic device 101 may select a beam adjacent to the first beam (e.g., a beam formed in a direction slightly deviating from the service beam) from a plurality of beams formed for the base station, measure the signal strength, determine the measured signal strength as the signal strength of the service beam received using the first beam via the first antenna module 710, and generate the measurement report information. As another example, the electronic device 101 may stop the operation of the first antenna module 710 determined to be in an overheat state, measure the received signal strength of the first beam and the received signal strength of the second beam using the second antenna module 720, and generate the measurement report information. If it is identified that the received signal strength of the second beam is not greater than the signal strength of the serving beam by the threshold or more, the electronic device 101 may receive the existing serving beam through the second antenna module 720 and continue to communicate with the base station.

[0213] According to various embodiments, the beam change request may indicate a change in receiving the serving beam via the second beam. The electronic device 101 may directly transmit the beam change request to the base station 1710 through a separate message or signaling or using a RACH signal.

[0214] In operation 1707 , the electronic device 101 may receive a beam changing command corresponding to a beam changing request or measurement report information from the base station 1710 .

[0215] In operation 1709 , the electronic device 101 may change an existing candidate beam received using the second beam to a new serving beam based on the beam change command, and in operation 1711 , the electronic device 101 may communicate 1710 with the base station using the second beam.

[0216] Fig.18 is a flow chart illustrating example operations in the case where there are no candidate beams when an antenna module in use overheats according to various embodiments. Fig.18 The operation may be performed by at least one processor (eg, Figure 7 at least one processor 750, Figure 1 The processor 120 or Figure 2 processor 120, the first communication processor 212 or the second communication processor 214).

[0217] refer to Fig.18 In operation 1810, the electronic device 101 may determine an overheat state of the first antenna module 710 operating for data transmission / reception. When the first antenna module 710 operates for data transmission / reception, the electronic device 101 may obtain temperature information measured for the first antenna module 710 from the first temperature sensor 730 disposed adjacent to the first antenna module 710. For example, if it is identified that the temperature of the first antenna module 710 is equal to or greater than the first threshold temperature set as the overheat reference temperature, the electronic device 101 may determine that the first antenna module 710 is in an overheat state.

[0218] In operation 1820, in response to detecting the overheat state of the first antenna module 710, the electronic device 101 may identify whether there is an adjacent beam or candidate beam available for data transmission / reception in the second antenna module 720 (e.g., an adjacent beam or candidate beam that satisfies the signal strength reference value condition for beam change). If it is identified in operation 1820 that there is an adjacent beam or candidate beam available for the second antenna module 720 ("Yes" in 1820), the electronic device 101 may immediately perform an operation for beam change (e.g., Fig.11 Operation 1130, Fig.12 Operation 1230, Fig.14 Operation 1420, Fig.15 Operation 1530 or Fig.16 after operation 1630).

[0219] If it is identified in operation 1820 that there is no adjacent beam or candidate beam available for the second antenna module 720 (“No” in 1820), the electronic device 101 may perform an operation for beam changing after searching for adjacent beams or candidate beams until an adjacent beam or candidate beam available for the second antenna module 720 appears (for example, in Fig.11 Operation 1130, Fig.12 Operation 1230, Fig.14 Operation 1420, Fig.15 Operation 1530 or Fig.16 after operation 1630).

[0220] The electronic device according to various embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, a home appliance, etc. According to an embodiment of the present disclosure, the electronic device is not limited to the above description.

[0221] It should be understood that the various embodiments and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments and include various changes, equivalents or replacements of the corresponding embodiments. Regarding the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It should be understood that the singular form of the noun corresponding to the project may include one or more things, unless the relevant context clearly indicates otherwise. When used herein, phrases such as "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", "at least one of A, B or C" may include all possible combinations of items listed together in one of the corresponding phrases. When used herein, terms such as "first" and "second" or "first" and "second" may be used to simply distinguish the corresponding component from another component, rather than limiting the component in other aspects (such as importance or order). It should be understood that if an element (e.g., a first element) is referred to as being “coupled to another element (e.g., a second element)”, “coupled to another element (e.g., a second element)”, “connected to another element (e.g., a second element)”, or “connected to another element (e.g., a second element)” with or without the term “operably” or “communicatively”, the element may be coupled to the other element directly (e.g., by wire), wirelessly, or via a third element.

[0222] When used herein, the term "module" may include a unit implemented in hardware, software or firmware, or any combination thereof, and may be used interchangeably with other terms, such as "logic", "logic block", "portion" or "circuit". A module may be a single integrated component, or its smallest unit or portion, suitable for performing one or more functions. For example, according to an embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0223] The various embodiments described herein may be implemented as software (e.g., program 140), including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) readable by a machine (e.g., electronic device 101). For example, a processor (e.g., processor 120) of a machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the instruction under the control of the processor with or without one or more other components. This allows the machine to be operated to perform at least one function according to at least one instruction called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, a "non-transitory" storage medium is a tangible device and may not include a signal (e.g., an electromagnetic wave), but the term does not distinguish between situations where data is semi-permanently stored in a storage medium and where data is temporarily stored in a storage medium.

[0224] According to an embodiment, the method according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a commodity. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or via an application store (e.g., Play Store TM ) online distribution, or directly between two user devices (e.g., smart phones). If distributed online, at least a portion of the computer program product may be temporarily generated or at least temporarily stored in a machine-readable storage medium (e.g., a memory of a manufacturer's server, a server of an application store, or a relay server).

[0225] According to various embodiments, each of the above-mentioned components (e.g., a module or a program) may include a single entity or multiple entities. According to various embodiments, one or more of the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., a module or a program) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform one or more functions of each of the multiple components in a manner identical or similar to the functions performed by the corresponding components in the multiple components before integration. According to various embodiments, the operations performed by a module, a program or another component may be performed sequentially, in parallel, repeatedly or heuristically, or one or more operations may be performed or omitted in a different order, or one or more other operations may be added.

[0226] According to various embodiments, a storage medium storing instructions may be provided, which instructions are configured to, when executed by at least one processor 750, enable the at least one processor to or cause the at least one processor to perform at least one operation in a method for performing beam changing by an electronic device 101 including multiple antenna modules and multiple temperature sensors configured to measure a temperature corresponding to each of the multiple antenna modules. The method may include: when receiving a service beam using a first beam formed by a first antenna module 710 to perform communication with a first base station and measuring a signal strength of an adjacent beam using a second beam formed by a second antenna module 720, determining whether the first antenna module 710 is in an overheated state based on the temperature of the first antenna module 710 obtained from a first temperature sensor 730, and if it is determined that the first antenna module 710 is in an overheated state, performing switching to a second base station adjacent to the first base station based on channel measurement information of the second base station.

[0227] The embodiments disclosed herein are for the purpose of describing and understanding the disclosed technology, and do not limit the scope of the present disclosure. Therefore, the scope of the present disclosure should be understood to include all changes or various embodiments based on the technical spirit of the present disclosure.

Claims

1. An electronic device, comprising: a first antenna module including at least one antenna configured to form a first beam and receive a serving beam from a first base station; a second antenna module including at least one antenna configured to form a second beam and measure signal strength of a signal of an adjacent beam received from a second base station; a first temperature sensor, configured to measure a temperature corresponding to the first antenna module; a second temperature sensor, configured to measure a temperature corresponding to the second antenna module; at least one processor operatively connected to at least one of the first antenna module or the second antenna module; and A memory operatively connected to the at least one processor, wherein the memory stores instructions that, when executed by the at least one processor, cause the electronic device to: determining whether the first antenna module is in an overheated state based on the temperature of the first antenna module obtained from the first temperature sensor when performing communication with the first base station through the first antenna module, Based on determining that the first antenna module is in an overheated state, performing a handoff to the second base station based on the measured signal strength; When the temperature of the first antenna module is greater than or equal to a second threshold temperature, excluding a first beam formed by the first antenna module from a neighboring beam list; and After a specified time has passed from a time when the first beam was excluded from the neighbor beam list, a first beam formed by the first antenna module is added to the neighbor beam list.

2. The electronic device according to claim 1, wherein: When executed by the at least one processor, the instructions cause the electronic device to determine that the first antenna module is in an overheat state based on a temperature of the first antenna module being greater than or equal to a first threshold temperature set as an overheat reference temperature of the first antenna module.

3. The electronic device according to claim 1, wherein: The instructions, when executed by the at least one processor, cause the electronic device to: obtaining, from the first base station, handover execution related information including a channel state reference value for handover; comparing the channel state reference value with a signal strength value measured for the second antenna module; and A handover to the second base station is performed based on the comparison result.

4. The electronic device according to claim 1, wherein: The instructions, when executed by the at least one processor, cause the electronic device to: Obtain information of at least one candidate base station from the first base station; and A handover to the second base station is performed based on the information of the at least one candidate base station.

5. The electronic device according to claim 1, wherein: The instructions, when executed by the at least one processor, cause the electronic device to control: Sending a radio resource control (RRC) connection reestablishment request to the second base station; receiving, from the second base station, an RRC connection establishment message corresponding to the request; and Communication with the second base station is performed using the second antenna module.

6. The electronic device according to claim 1, wherein: The instructions, when executed, cause the at least one processor to: It is identified whether the temperature of the first antenna module is greater than or equal to the second threshold temperature set as an adjacent beam intensity measurement reference temperature of the first antenna module.

7. The electronic device according to claim 1, wherein: The instructions, when executed by the at least one processor, cause the electronic device to: measuring the temperature of the first antenna module according to a specified time period using the first temperature sensor; and Based on the measured temperature of the first antenna module being identified as being less than the second threshold temperature, a first beam formed by the first antenna module is added to the neighbor beam list.

8. A method for performing beam changing by an electronic device, the electronic device comprising a plurality of antenna modules and a plurality of temperature sensors configured to measure a temperature corresponding to each of the plurality of antenna modules, the method comprising: determining whether the first antenna module is in an overheated state based on a temperature of the first antenna module obtained from a first temperature sensor when receiving a service beam using a first beam formed by a first antenna module to perform communication with a first base station and measuring a signal strength of an adjacent beam using a second beam formed by a second antenna module; Based on determining that the first antenna module is in an overheated state, performing a handoff to a second base station based on the measured signal strength; When the temperature of the first antenna module is greater than or equal to a second threshold temperature, excluding a first beam formed by the first antenna module from a neighboring beam list; and After a specified time has passed from a time when the first beam was excluded from the neighbor beam list, a first beam formed by the first antenna module is added to the neighbor beam list.

9. The method according to claim 8, wherein: Determining whether the first antenna module is in an overheat state includes determining that the first antenna module is in an overheat state based on a temperature of the first antenna module being greater than or equal to a first threshold temperature set as an overheat reference temperature of the first antenna module.

10. The method according to claim 8, wherein: Performing handover to the second base station includes: obtaining, from the first base station, handover execution related information including a channel state reference value for handover; comparing the channel state reference value with a signal strength value measured for the second antenna module; and A handover to the second base station is performed based on the comparison result.

11. The method according to claim 8, wherein: Performing handover to the second base station includes: Obtain information of at least one candidate base station from the first base station; and A handover to the second base station is performed based on the information of the at least one candidate base station.

12. The method according to claim 8, further comprising: Sending a radio resource control (RRC) connection reestablishment request to the second base station; receiving, from the second base station, an RRC connection establishment message corresponding to the request; and Communication with the second base station is performed using the second beam through the second antenna module.

13. The method according to claim 8, further comprising: It is identified whether the temperature of the first antenna module is greater than or equal to the second threshold temperature set as an adjacent beam intensity measurement reference temperature of the first antenna module.

14. The method according to claim 8, wherein: Adding the first beam formed by the first antenna module to the adjacent beam list after the specified time has passed includes: using the first temperature sensor to measure the temperature of the first antenna module according to the specified time period; and based on the measured temperature of the first antenna module being identified as less than the second threshold temperature, adding the first beam formed by the first antenna module to the adjacent beam list.

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