KR20240034064A - Electronic device for determining whether to switch a cellular communication based on use rate of bandwidthpart and method for the same - Google Patents

Abstract

In an electronic device and a method of operating the electronic device according to various embodiments, the electronic device includes a communication circuit supporting first cellular communication and/or second cellular communication; application processor; and a communication processor, wherein when the electronic device satisfies a specified condition while connected through the first cellular communication, at least It can be set to check the utilization rate of a bandwidth part of one or more bandwidth parts (bandwidthpart, BWP) of a specified size or less, and maintain a connection with the first node based on the ratio of the bandwidth part being greater than or equal to a specified value.
In addition, various embodiments are possible.

Description

Electronic device and method of operating the electronic device that determine whether to switch to cellular communication based on the utilization of the bandwidth portion

Various embodiments of the present invention relate to an electronic device and a method of operating the electronic device, and relate to an electronic device that determines whether to switch to cellular communication based on the usage rate of the bandwidth portion.

In order to meet the increasing demand for wireless data traffic following the commercialization of the 4G communication system, efforts are being made to develop an improved 5G communication system or pre-5G communication system. For this reason, the 5G communication system or pre-5G communication system is called a Beyond 4G Network communication system or a Post LTE system. To achieve high data rates, the 5G communication system can also be implemented in ultra-high frequency (mmWave) bands (for example, bands above 6 GHz) in addition to the bands used by LTE (bands below 6 GHz). is being considered. In the 5G communication system, beamforming, massive array multiple input/output (massive MIMO), full dimension multiple input/output (FD-MIMO), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

The 5th generation mobile communication system transmits or receives data from a base station of 4th generation cellular communication and a base station of 5th generation cellular communication in a non-standalone mode (NSA) or transmits data from a base station of 5th generation cellular communication. , can support standalone (SA) receiving mode.

The frequency band supported by 5th generation cellular communication can also use a higher frequency band than existing communication methods. When an electronic device uses a frequency band communication method supported by 5th generation cellular communication, power consumption may be greater than when using a conventional communication method.

When power consumption increases, the temperature of the electronic device may increase. When the temperature of an electronic device increases, the power consumed by the electronic device increases and the actual usable time of the electronic device may decrease. Furthermore, when the temperature of an electronic device rises, various components of the electronic device may be damaged, and as the threshold voltage for operating the various components increases, a phenomenon that requires higher power consumption may occur.

To prevent the phenomenon described above, the electronic device can switch from 5th generation cellular communication to 4th generation cellular communication, which consumes relatively less power.

However, when an electronic device switches from 5th generation cellular communication to 4th generation cellular communication, data can be transmitted or received through a channel supporting a higher bandwidth than the existing bandwidth used. For example, the frequency bandwidth of 4th generation cellular communication may be 20MHz, and the frequency bandwidth of 5th generation cellular communication may be 10MHz. The size of the frequency bandwidth may be closely related to power consumption and/or heat generation. For example, as the frequency bandwidth becomes smaller, power consumption and/or heat generation may be reduced. If the bandwidth of the frequency band primarily used while the electronic device is connected through 5th generation cellular communication is smaller than the bandwidth of the frequency band to be used through 4th generation cellular communication, switching to 4th generation cellular communication will result in power consumption and/or It may increase fever.

Electronic devices according to various embodiments may include a communication circuit that supports first cellular communication and/or second cellular communication. The electronic device may include an application processor. The electronic device may include a communications processor. When the electronic device satisfies a specified condition while connected through the first cellular communication, the communication processor generates at least one bandwidth part (bandwidthpart) between the first node connected through the first cellular communication and the electronic device. You can check the utilization rate of the bandwidth portion of BWP) that is less than the specified size. The communication processor may be configured to maintain a connection with the first node based on the ratio of the bandwidth portion being greater than or equal to a specified value.

A method of operating an electronic device according to various embodiments provides, when a specified condition is satisfied while the electronic device is connected through the first cellular communication, at least a connection between a first node connected through the first cellular communication and the electronic device. It may include an operation to check the utilization of a bandwidth portion of one or more bandwidth parts (bandwidthpart, BWP) that is smaller than or equal to a specified size. A method of operating an electronic device may include maintaining a connection with the first node based on the fact that the utilization rate of the bandwidth portion is greater than or equal to a specified value.

An electronic device and a method of operating the electronic device according to various embodiments of the present invention include the electronic device controlling a bandwidth portion having a bandwidth of a specified size or less among at least one bandwidth portion between the electronic device and a node connected through first cellular communication. Based on the usage rate, it may be determined whether to switch from the first cellular communication to the second cellular communication. The electronic device, based on the fact that the utilization rate of the bandwidth portion having a bandwidth of a specified size or less among at least one bandwidth portion between the node connected through the first cellular communication and the electronic device is greater than or equal to the specified value, the first cellular communication or the currently connected node You can maintain a connection with. Accordingly, the electronic device performs first cellular communication using a small bandwidth that can implement low power consumption and/or heat generation, thereby reducing the increase in power consumption and/or heat generation that may occur by switching to the second cellular communication. It can be prevented.

An electronic device and a method of operating the electronic device according to various embodiments of the present invention can determine whether an adjacent node supporting first cellular communication supports a frequency band with a bandwidth of a specified size or less. The electronic device may maintain first cellular communication when a node supporting a frequency band with a bandwidth of a specified size or less exists. Accordingly, the electronic device performs first cellular communication using a small bandwidth capable of implementing low power consumption and/or heat generation, thereby preventing an increase in power consumption and/or heat generation that may occur by switching to second cellular communication. can do.

1 is a block diagram of an electronic device according to various embodiments of the present invention.
FIG. 2 is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments.
FIG. 3 is a diagram illustrating the protocol stack structure of a network 100 for legacy communication and/or 5G communication according to an embodiment.
FIGS. 4A, 4B, and 4C are diagrams illustrating wireless communication systems that provide networks of legacy communication and/or 5G communication according to various embodiments.
FIG. 5 is a diagram illustrating an electronic device and a cellular network according to an embodiment.
Figure 6 is a block diagram of an electronic device according to one embodiment.
FIG. 7A is a diagram illustrating an example in which an electronic device determines whether to maintain a connection with a first node supporting first cellular communication, according to an embodiment.
FIG. 7B is a diagram illustrating an example in which an electronic device determines whether to connect to a second node supporting first cellular communication or to connect to a node supporting second cellular communication, according to an embodiment.
FIG. 8 is a diagram illustrating an embodiment in which an electronic device determines whether to connect to a second node or to a node supporting second cellular communication based on the frequency band of the second node. .
FIG. 9 is an operation flowchart illustrating a method of operating an electronic device according to an embodiment.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., a short-range wireless communication network) or a second network 199. It is possible to communicate with at least one of the electronic device 104 or the server 108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or may include an antenna module 197. In some embodiments, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components (e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.

The processor 120, for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134. According to one embodiment, the processor 120 includes a main processor 121 (e.g., a central processing unit or an application processor) or an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device 101 includes a main processor 121 and a secondary processor 123, the secondary processor 123 may be set to use lower power than the main processor 121 or be specialized for a designated function. You can. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, co-processor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is. According to one embodiment, the auxiliary processor 123 (eg, neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 108). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

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

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

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

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

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

The audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102 (e.g., speaker or headphone).

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

The interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 directly or wirelessly with an external electronic device (eg, the electronic device 102). According to one embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102). According to one embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

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

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

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

Communication module 190 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 190 is 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., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It may communicate with an external electronic device 104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be confirmed or authenticated.

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

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

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

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

According to one embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the external electronic devices 102 or 104 may be of the same or different type as the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

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

The first communication processor 212 may support establishment of a communication channel in a band to be used for wireless communication with the first network 292, and legacy network communication through the established communication channel. According to various embodiments, the first network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The second communication processor 214 establishes a communication channel corresponding to a designated band (e.g., about 6 GHz to about 60 GHz) among the bands to be used for wireless communication with the second network 294, and 5G network communication through the established communication channel. can support. According to various embodiments, the second network 294 may be a 5G network defined by 3GPP. Additionally, according to one embodiment, the first communication processor 212 or the second communication processor 214 corresponds to another designated band (e.g., about 6 GHz or less) among the bands to be used for wireless communication with the second network 294. It can support establishment of a communication channel and 5G network communication through the established communication channel. According to one embodiment, the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or a single package. According to various embodiments, the first communication processor 212 or the second communication processor 214 may be formed within a single chip or a single package with the processor 120, the auxiliary processor 123, or the communication module 190. there is.

When transmitting, the first RFIC 222 converts the baseband signal generated by the first communication processor 212 into a frequency range of about 700 MHz to about 3 GHz for use in the first network 292 (e.g., a legacy network). It can be converted into a radio frequency (RF) signal. Upon reception, the RF signal is obtained from a first network 292 (e.g., a legacy network) via an antenna (e.g., first antenna module 242) and via an RFFE (e.g., first RFFE 232). Can be preprocessed. The first RFIC 222 may convert the pre-processed RF signal into a baseband signal to be processed by the first communication processor 212.

The second RFIC 224, when transmitting, connects the first communications processor 212 or the baseband signal generated by the second communications processor 214 to a second network 294 (e.g., a 5G network). It can be converted to an RF signal (hereinafter referred to as a 5G Sub6 RF signal) in the Sub6 band (e.g., approximately 6 GHz or less). Upon reception, the 5G Sub6 RF signal is obtained from the second network 294 (e.g., 5G network) via an antenna (e.g., second antenna module 244) and an RFFE (e.g., second RFFE 234) It can be preprocessed through . The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal so that it can be processed by a corresponding communication processor of the first communication processor 212 or the second communication processor 214.

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

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

According to one example, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least part of a single package. According to one embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least part of a single package. According to one example, at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or may be combined with another antenna module to process RF signals of a plurality of corresponding bands.

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

According to one example, 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, for example, as part of the third RFFE 236, may include a plurality of phase shifters 238 corresponding to a plurality of antenna elements. At the time of transmission, each of the plurality of phase converters 238 can convert the phase of the 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (e.g., a base station of a 5G network) through the corresponding antenna element. . Upon reception, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside through the corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

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

FIG. 3 is a diagram illustrating the protocol stack structure of a network 100 for legacy communication and/or 5G communication according to an embodiment.

Referring to FIG. 3, the network 100 according to the illustrated embodiment may include an electronic device 101, a legacy network 392, a 5G network 394, and a server 108.

The electronic device 101 may include an Internet protocol 312, a first communication protocol stack 314, and a second communication protocol stack 316. The electronic device 101 may communicate with the server 108 through a legacy network 392 and/or a 5G network 394.

According to one embodiment, the electronic device 101 may perform Internet communication associated with the server 108 using the Internet protocol 312 (eg, TCP, UDP, IP). The Internet Protocol 312 may be executed, for example, on a main processor included in the electronic device 101 (eg, the main processor 121 in FIG. 1).

According to another embodiment, the electronic device 101 may wirelessly communicate with the legacy network 392 using the first communication protocol stack 314. According to another embodiment, the electronic device 101 may wirelessly communicate with the 5G network 394 using the second communication protocol stack 316. The first communication protocol stack 314 and the second communication protocol stack 316 may be executed, for example, on one or more communication processors included in the electronic device 101 (e.g., wireless communication module 192 in FIG. 1). there is.

The server 108 may include an Internet protocol 322. The server 108 may transmit and receive data related to the Internet protocol 322 with the electronic device 101 through the legacy network 392 and/or 5G network 394. According to one embodiment, server 108 may include a cloud computing server that exists outside of legacy network 392 or 5G network 394. In another embodiment, the server 108 may include an edge computing server (or mobile edge computing (MEC) server) located inside at least one of the legacy network or the 5G network 394.

The legacy network 392 may include an LTE base station 340 and an EPC 342. The LTE base station 340 may include an LTE communication protocol stack 344. EPC 342 may include legacy NAS protocol 346. The legacy network 392 may perform LTE wireless communication with the electronic device 101 using the LTE communication protocol stack 344 and the legacy NAS protocol 346.

The 5G network 394 may include an NR base station 350 and 5GC 352. NR base station 350 may include an NR communication protocol stack 354. 5GC 352 may include 5G NAS protocol 356. The 5G network 394 may perform NR wireless communication with the electronic device 101 using the NR communication protocol stack 354 and the 5G NAS protocol 356.

According to one embodiment, the first communication protocol stack 314, the second communication protocol stack 316, the LTE communication protocol stack 344, and the NR communication protocol stack 354 include a control plane protocol for transmitting and receiving control messages, and It may include 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 setup, authentication, registration, or mobility management. User data may include, for example, data other than control messages.

According to one embodiment, the control plane protocol and user plane protocol may include physical (PHY), medium access control (MAC), radio link control (RLC), or packet data convergence protocol (PDCP) layers. For example, the PHY layer can channel code and modulate data received from a higher layer (e.g., MAC layer) and transmit it to a wireless channel, and demodulate and decode data received through a wireless channel and transmit it to the upper layer. there is. The PHY layer included in the second communication protocol stack 316 and the NR communication protocol stack 354 may further perform operations related to beam forming. For example, the MAC layer can logically/physically map data to a wireless channel for transmitting and receiving data and perform HARQ (hybrid automatic repeat request) for error correction. The RLC layer may, for example, concatenate, segment, or reassemble data, and perform order checking, reordering, or redundancy checking of data. For example, the PDCP layer may perform operations related to ciphering and data integrity of control messages and user data. The second communication protocol stack 316 and the NR communication protocol stack 354 may further include a service data adaptation protocol (SDAP). SDAP can, for example, manage radio bearer allocation based on QoS (Quality of Service) of user data.

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

4A to 4C are diagrams illustrating wireless communication systems that provide networks of legacy communication and/or 5G communication according to various embodiments. Referring to FIGS. 4A to 4C, the network environments 100A to 100C may include at least one of a legacy network and a 5G network. The legacy network includes, for example, a 4G or LTE base station 450 (e.g., eNodeB) of the 3GPP standard that supports wireless access with the electronic device 101 and an evolved packet (EPC) that manages 4G communications. core) (451). The 5G network, for example, manages 5G communication of the electronic device 101 and a New Radio (NR) base station 450 (e.g., gNB (gNodeB)) that supports wireless access with the electronic device 101. It may include 5GC (452) (5th generation core).

According to various embodiments, the electronic device 101 may transmit and receive control messages and user data through legacy communication and/or 5G communication. The control message is, for example, a message related to at least one of security control, bearer setup, authentication, registration, or mobility management of the electronic device 101. may include. User data may mean, for example, user data excluding control messages transmitted and received between the electronic device 101 and the core network 430 (eg, EPC 442).

Referring to FIG. 4A, the electronic device 101 according to one embodiment uses at least a part of a legacy network (e.g., an LTE base station 440, an EPC 442) to connect to at least a part of a 5G network (e.g., LTE base station 440, EPC 442). At least one of a control message or user data can be transmitted and received with the NR base station 450 and 5GC 452.

According to various embodiments, the network environment 100A provides wireless communication dual connectivity (multi-RAT (radio access technology) dual connectivity, MR-DC) to the LTE base station 440 and the NR base station 450, and EPC It may include a network environment for transmitting and receiving control messages to and from the electronic device 101 through the core network 430 of either 442 or 5GC 452.

According to various embodiments, in an MR-DC environment, one of the LTE base stations 440 or NR base stations 450 operates as a master node (MN) 410 and the other operates as a secondary node (SN) 420. It can operate as . The MN 410 is connected to the core network 430 and can transmit and receive control messages. The MN 410 and the SN 420 are connected through a network interface and can transmit and receive messages related to radio resource (eg, communication channel) management with each other.

According to various embodiments, the MN 410 may be comprised of an LTE base station 450, the SN 420 may be comprised of an NR base station 450, and the core network 430 may be comprised of an EPC 442. For example, control messages can be transmitted and received through the LTE base station 440 and the EPC 442, and user data can be transmitted and received through the LTE base station 450 and the NR base station 450.

Referring to FIG. 4B, according to various embodiments, a 5G network may transmit and receive control messages and user data independently from the electronic device 101.

Referring to FIG. 4C, the legacy network and 5G network according to various embodiments can each independently provide data transmission and reception. For example, the electronic device 101 and the EPC 442 may transmit and receive control messages and user data through the LTE base station 450. As another example, the electronic device 101 and the 5GC 452 may transmit and receive control messages and user data through the NR base station 450.

According to various embodiments, the electronic device 101 may be registered with at least one of the EPC 442 or the 5GC 452 to transmit and receive control messages.

According to various embodiments, the EPC 442 or 5GC 452 may manage communication of the electronic device 101 by interworking. For example, movement information of the electronic device 101 may be transmitted and received through the interface between the EPC 442 and the 5GC 452.

Figure 5 is a diagram illustrating an electronic device and a cellular network according to various embodiments of the present invention.

According to various embodiments of the present invention, cellular network 500 includes a first node (e.g., NR base station 450 in FIG. 4B) and/or a second node (e.g., master node 410 in FIG. 4A). can do.

According to various embodiments of the present invention, the first node 450 may be a base station supporting first cellular communication. The first cellular communication may refer to any one of various cellular communication methods that the electronic device 101 can support, for example, a communication method on the second cellular network 294 of FIG. 2. For example, the first cellular communication may be a communication method using a 5th generation mobile communication method (eg, new radio). According to one embodiment, the first node 450 may be a base station that supports standalone mode supported by first cellular communication. The standalone mode may be a mode in which the electronic device 101 transmits or receives data using a base station that supports first cellular communication. The electronic device 101 is connected to the first node 450 and can transmit or receive data. Alternatively, the first node 450 may be a base station that supports a non-standalone mode supported by first cellular communication. The non-standalone mode may be a mode in which the electronic device 101 transmits or receives data using a base station supporting first cellular communication and a base station supporting second cellular communication. The electronic device 101 may be connected to the first node 450 and/or the second node 460 to transmit or receive data.

According to various embodiments of the present invention, the second node 410 may be a base station supporting second cellular communication. The second cellular communication is any one of various cellular communication methods that can be supported by an electronic device (e.g., the electronic device 101 of FIG. 1), for example, communication on the first cellular network 292 of FIG. 2. It can mean a method. For example, the second cellular communication may be a communication method using a 4th generation mobile communication method (eg, long term evolution).

According to various embodiments of the present invention, the first cellular communication may be a cellular communication that performs data communication using a relatively high frequency band compared to the second cellular communication. The frequency band of the first cellular communication may have a higher frequency band than the frequency band of the second cellular communication. The first node 450 supporting first cellular communication may have relatively smaller coverage than the second node 410 supporting second cellular communication due to the characteristics of the high frequency band. Additionally, when the electronic device 101 performs first cellular communication, the strength of the signal transmitted may be greater than the strength of the signal transmitted when the electronic device 101 performs the second cellular communication.

Accordingly, the power consumed by the electronic device 101 while performing first cellular communication may be greater than the power consumed while performing second cellular communication. Additionally, the temperature of the electronic device 101 may increase due to heat generated while performing first cellular communication. The electronic device 101 may reduce power consumption and/or heat generation by switching from first cellular communication to second cellular communication depending on whether a specified condition is satisfied.

However, even if the electronic device 101 switches to the second cellular communication, the degree of reduction in power consumption and/or heat generation may not be significant. Furthermore, when the electronic device 101 switches to second cellular communication, power consumption and/or heat generation may increase.

According to one example, while the electronic device 101 is connected through first cellular communication, it may use a bandwidth of less than or equal to a specified size (eg, the frequency bandwidth of second cellular communication). For example, the frequency bandwidth of the second cellular communication may be 20MHz, and the frequency bandwidth of the first cellular communication may be 10Mhz. The size of the frequency bandwidth may be closely related to power consumption and/or heat generation. For example, as the frequency bandwidth becomes smaller, power consumption and/or heat generation may be reduced. If the bandwidth of the frequency band mainly used by the electronic device 101 while connected through the first cellular communication is smaller than the bandwidth of the frequency band to be used through the second cellular communication, switching the connection to the second cellular communication consumes less power. and/or may increase fever.

Additionally, the electronic device 101 may be in a state where it is difficult to connect to the second cellular communication. For example, a frequency band used for transmitting and/or receiving data over a second cellular communication may be used by a cellular communication carrier to transmit and/or receive data over a first cellular communication. A frequency band used for transmission and/or reception of data through the second cellular communication, but changed to a frequency band for transmission and/or reception of data through the first cellular communication, may be defined as an NR refarming band. In the process of disconnecting the first cellular communication and connecting the second cellular communication, the electronic device 101 connects a node (e.g., the second node 450) that supports the second cellular communication through the NR refarming band. ), the search for the second node 450 may fail. The electronic device 101 may fail to search for the second node 450, which is a node supporting second cellular communication, and may be in a state in which transmission or reception of data is impossible (e.g., radio link failure (RLF)). there is. The electronic device 101 may be unable to transmit or receive data until it reconnects to the first node 410 that supports first cellular communication. Rather, the electronic device 101 may consume higher power compared to maintaining a first cellular communication connection.

Below, in order to alleviate (or solve) the above phenomenon, an embodiment in which the electronic device 101 determines whether to connect to the first node 410 will be described.

FIG. 6 is a diagram illustrating an electronic device according to an embodiment.

Referring to FIG. 6, the electronic device (e.g., the electronic device 101 in FIG. 1) includes a communication circuit (e.g., the wireless communication module 192 in FIG. 1) 610 and a communication processor (e.g., the first electronic device in FIG. 2). It may include a communication processor 212 and/or a second communication processor 242 of FIG. 2) 620 and/or an application processor (eg, processor 120 of FIG. 1) 630.

The application processor 610 can control various components of the electronic device 101. Specific operations will be described later.

The communication processor 620 may perform data transmission and/or reception through first cellular communication and/or second cellular communication. The communication processor 640 is connected to a first node (e.g., the first node 410 in FIG. 5A) through first cellular communication, or is connected to a second node (e.g., the second node 410 in FIG. 5A) through second cellular communication. It can be connected to the node 450). The communication processor 620 may transmit user data received from the application processor 610 through first cellular communication and/or second cellular communication, and may transmit user data received through first cellular communication and/or second cellular communication. User data may be transmitted to the application processor 620.

The first cellular communication may refer to any one of various cellular communication methods that the electronic device 101 can support, for example, a communication method on the second cellular network 294 of FIG. 2. For example, the first cellular communication may be a communication method using a 5th generation mobile communication method (eg, new radio).

The second cellular communication is any one of various cellular communication methods that can be supported by an electronic device (e.g., the electronic device 101 of FIG. 1), for example, communication on the first cellular network 292 of FIG. 2. It can mean a method. For example, the second cellular communication may be a communication method using a 4th generation mobile communication method (eg, long term evolution).

The communication circuit 630 is a communication circuit that supports first cellular communication and/or second cellular communication, and is capable of communicating with an external electronic device (e.g., the external electronic device of FIG. 1 (e.g., the external electronic device of FIG. 1) through the first cellular communication and/or the second cellular communication. Communication with 104)) can be provided to the electronic device 101.

The electronic device 101 may perform a series of operations described below to reduce heat generation and/or power consumption in a first cellular communication connection state.

The application processor 620 may check whether the electronic device 101 satisfies specified conditions while connected through first cellular communication.

The specified conditions may include conditions related to the temperature of the electronic device 101. The designated condition may include a condition in which the temperature of the electronic device 101 is greater than or equal to a designated value.

The application processor 630 may receive the temperature measured by a temperature sensor (eg, sensor module 176 of FIG. 1). The temperature measured by the temperature sensor 176 may include the temperature of a portion of the electronic device 101 where the temperature sensor 176 is placed. The application processor 630 may check whether the temperature measured by the temperature sensor 176 satisfies specified conditions. The application processor 630 may confirm that the temperature measured by the temperature sensor 176 is greater than or equal to a specified value and determine that the electronic device 101 satisfies the specified condition. The application processor 630 may transmit a signal indicating that the electronic device 101 satisfies specified conditions to the communication processor 620. Depending on the implementation, the signal indicating that the electronic device 101 satisfies the specified condition may be a signal requesting release of the connection with the first node 410 to which the electronic device 101 is connected or a request for release of the first cellular communication. It can also be implemented as a signal.

The specified condition may include conditions related to the throughput of data transmitted or received by the electronic device 101. Conditions related to release of the first cellular communication may include a condition that the throughput is less than (or less than) a specified value.

Throughput of data transmission can be defined as the traffic amount of data transmitted and/or received per unit time. The application processor 630 may monitor (or track) the amount of traffic generated by a running application (or background application). The application processor 630 may monitor (or track) the traffic amount of data transmitted or received through first cellular communication and/or second cellular communication and check whether throughput satisfies specified conditions. . The application processor 630 may confirm that the throughput is less than (or less than) a specified value and determine that the electronic device 101 satisfies the specified condition.

The application processor 630 may confirm that the temperature and/or throughput do not satisfy specified conditions and maintain the first cellular communication connection. The fact that the temperature and/or throughput do not meet the specified conditions may mean that the temperature of the electronic device 101 is below the specified value or that the throughput is above the specified value. Maintaining the connection of the first cellular communication may mean that the electronic device 101 can transmit and/or receive data through the first cellular communication. In response to confirming that the temperature and/or throughput do not satisfy the specified condition, the application processor 620 maintains the connection of the first cellular communication and continuously checks the temperature and/or throughput to determine whether the specified condition is satisfied. You can check whether or not.

The specified conditions may include various conditions in addition to the temperature and throughput described above. For example, the specified condition may include a condition in which a display (eg, display module 160 of FIG. 1) is deactivated. For another example, the specified condition may include conditions related to whether or not the specified application is executed.

The application processor 630 may confirm that the state of the electronic device 101 satisfies specified conditions and control the communication processor 620 to perform a series of operations to release the first cellular communication. The application processor 630 may transmit a signal indicating that the electronic device 101 satisfies specified conditions to the communication processor 620. Depending on the implementation, the signal indicating that the electronic device 101 satisfies the specified condition may be a signal requesting release of the connection with the first node 410 to which the electronic device 101 is connected or a request for release of the first cellular communication. It can also be implemented as a signal.

The communication processor 620 determines whether to release the connection of the first cellular communication and/or whether to perform the connection of the second cellular communication, based on receiving a signal indicating that the electronic device 101 satisfies the specified condition. You can.

According to one example, the communication processor 620 is based on the utilization rate of the bandwidth portion of the bandwidth portion of the bandwidth portion below the specified size between the first node 410 and the electronic device 101, and the first node connected through the first cellular communication. It is possible to determine whether to maintain the connection with the node 410.

Based on the communication processor 620 determining to disconnect from the first node 410, there is an adjacent node capable of transmitting and/or receiving data through first cellular communication using a bandwidth of a specified size or less. You can check whether it is working or not.

The communication processor 620 confirms that there is an adjacent node capable of transmitting and/or receiving data through the first cellular communication using a bandwidth of a specified size or less, and maintains the connection of the first cellular communication and/or connects the adjacent node. You can try to connect to the node.

The communication processor 620 confirms that there is no adjacent node capable of transmitting and/or receiving data through the first cellular communication using a bandwidth of a specified size or less, and disconnects the first cellular communication and/or 2 Cellular communication can be connected.

The communication processor 620 may determine whether to maintain a connection with the first node 410 currently connected through first cellular communication. When determining whether to maintain a connection with the first node 410, the communication processor 620 determines at least one bandwidth portion between the first node 410 and the electronic device 101 connected through the first cellular communication ( It can be determined whether to maintain the connection with the first node 410 based on the information of the bandwidth part).

The communication processor 620 may check information on at least one bandwidth portion between the first node 410 and the electronic device 101.

In the process of connecting to the first node 410 through first cellular communication, the communication processor 620 receives system information (system information block, SIB) broadcast by the first node 410, and provides system information You can check the information about the bandwidth included in . System information broadcast by the first node 410 may include various information. System information is 3GPP TS. 36.331 May include SIB 1 defined in v15.6. SIB 1 may include information about the first node 410. For example, SIB 1 is information required for connection to the first node 410, including physical identification information (PCI, physical cell identification) of the first node 410, and the frequency band used by the first node 410. And/or it may include the size of the bandwidth of the initial bandwidth part used for initial connection with the first node 410.

When the electronic device 101 is in an idle state of first cellular communication, the communication processor 620 may check whether the size of the bandwidth of the portion of the bandwidth used for initial connection with the first node 410 is less than or equal to a specified size. there is. The designated size may be the same size as the size of the bandwidth of the second cellular communication, but is not limited thereto. The communication processor 620 can maintain the connection with the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is less than (or less than) a specified size. there is. The fact that the size of the bandwidth of the portion of the bandwidth used for initial connection with the first node 410 is less than (or less than) a specified size means that data transmission and/or through the first node 410 (or first cellular communication) Alternatively, it may mean that the power or heat generated by reception may be less than the power or heat generated by data transmission and/or reception through second cellular communication. Therefore, the communication processor 620 connects to the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is less than (or less than) the specified size. By maintaining , power consumption and heat generation can be reduced.

The communication processor 620 releases the connection with the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is greater than (or exceeds) a specified size. It can be decided that The fact that the size of the bandwidth of the bandwidth used for initial connection with the first node 410 is greater than (or exceeds) a specified size means that data transmission and/or through the first node 410 (or first cellular communication) Alternatively, it may mean that the power or heat generated by reception may be greater than the power or heat generated by data transmission and/or reception through second cellular communication. Accordingly, the communication processor 620 connects to the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is greater than (or exceeds) the specified size. By disabling and attempting to connect to another node, power consumption and heat generation can be reduced.

The communication processor 620 is used by the electronic device 101 to transmit and/or receive data through the first node 410 when the electronic device 101 is in an active state of first cellular communication. It is possible to check whether the connection with the first node 410 is maintained based on the utilization rate of a bandwidth portion of at least one bandwidth portion of a specified size or less. The designated size may be the same size as the size of the bandwidth of the second cellular communication, but is not limited thereto.

The communication processor 620 may receive an RRC connection reconfiguration message (radio resource control (RRC) connection reconfiguration message) through the first node 410. The RRC connection reconfiguration message may include information on at least one portion of the bandwidth to be used for transmitting or receiving data through the first node 410. Information on at least one bandwidth portion may include identification information of the bandwidth portion (e.g., BWP-ID 1, BWP-ID2) and the frequency bandwidth of the bandwidth portion (e.g., 20 MHz, 100 MHz).

The communication processor 620 may receive downlink control information (DCI), which is a message for resource scheduling, from the first node 410 before transmitting or receiving data. The communication processor 620 may check the information indicating the bandwidth portion included in the DCI and transmit or receive data through the bandwidth portion indicated by the information indicating the bandwidth portion. Each time data is transmitted or received, the portion of the bandwidth used may change, and the communication processor 620 may transmit or receive data through the changed bandwidth portion indicated by the information indicating the bandwidth portion.

While transmitting or receiving data, the communication processor 620 may generate history information on the portion of the bandwidth used to transmit or receive data and store it on a memory (e.g., memory 130 in FIG. 1). The communication processor 620 determines the utilization rate of a bandwidth portion of a specified size or less among at least one bandwidth portion that the electronic device 101 uses to transmit and/or receive data through the first node 410 based on the history information. You can decide (or confirm).

For example, the communication processor 620 may generate and store history information, as shown in Table 1 below.

hour 0~1 second 1~2 seconds 2~3 seconds 3~4 seconds 4~5 seconds BWP1 50% 60% 30% 20% 10% BWP2 50% 40% 70% 80% 90%

For convenience of explanation, it is assumed that the electronic device 101 is allocated two bandwidth portions (BWP1 and BWP2) to transmit or receive data through the first node 410, and the size of the bandwidth of BWP 1 is As 100MHz, it is assumed to be a bandwidth larger than the specified size (e.g., 20MHz), and the bandwidth size of BWP 2 is assumed to be 10MHz, which is smaller than the specified size (e.g., 20MHz). If the communication processor 620 is assigned BWP 1 50 times and BWP 2 50 times for 0 to 1 second, the utilization rate of BWP1 may be 50% and the utilization rate of BWP2 may be 50%. If the communication processor 620 is assigned BWP 1 60 times for 1 to 2 seconds and BWP 2 40 times, the utilization rate of BWP1 for 1 to 2 seconds may be 60% and the utilization rate of BWP2 may be 40%. there is. If the communication processor 620 is assigned BWP 1 30 times for 2 to 3 seconds and BWP 2 70 times, the utilization rate of BWP1 for 2 to 3 seconds may be 30% and the utilization rate of BWP2 may be 70%. there is. If the communication processor 620 is assigned BWP 1 20 times for 3 to 4 seconds and BWP 2 80 times, the utilization rate of BWP1 for 3 to 4 seconds may be 20% and the utilization rate of BWP2 may be 80%. there is. If the communication processor 620 is assigned BWP 1 10 times for 4 to 5 seconds and BWP 2 90 times, the utilization rate of BWP1 for 4 to 5 seconds may be 10% and the utilization rate of BWP2 may be 90%. there is.

The communication processor 620 may check the utilization rate of a portion of the bandwidth (e.g., BWP 2) of a specified size or less during a specified time period based on history information. For example, the communication processor 620 may check the utilization (e.g., 75%) of a portion of the bandwidth (e.g., BWP 2) below a specified size for all times (e.g., 0 to 5 seconds) included in the history information. there is. For another example, the communication processor 620 may check the utilization (e.g., 85%) of a portion of the bandwidth (e.g., BWP 2) below a specified size during a specified time (e.g., 3 to 5 seconds) included in the history information. You can.

According to one example, the utilization rate of the bandwidth portion of at least a specified size or less among the portions of at least one bandwidth used to transmit and/or receive data through the first node 410 is the physical downlink shared (PDSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all bandwidth portions included in a channel) and the number of allocations of frequency bandwidths of bandwidth portions of a specified size or less. Alternatively, the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is determined by the physical uplink shared channel (PUSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all included bandwidth portions and the allocation number of frequency bandwidths of bandwidth portions of a specified size or less.

According to one example, the electronic device 101 is allocated one bandwidth portion, and when the size of the allocated bandwidth portion is less than or equal to the specified size, at least Among one or more bandwidth portions, the utilization rate of a bandwidth portion of a specified size or less may be 100%.

The communication processor 620 sets the utilization rate of the portion of the bandwidth smaller than or equal to a specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 to be greater than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number exceeds the limit, the connection with the first node 410 can be maintained. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to the specified size is greater than (or exceeds) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be smaller than the power or heat generated by reception. Accordingly, the communication processor 620 determines that the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is greater than or equal to a specified value (e.g., 70%). (or, excess), power consumption and heat generation can be reduced by maintaining the connection with the first node 410.

The communication processor 620 determines that the utilization rate of the portion of the bandwidth smaller than or equal to a specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number is less than 100%, the connection with the first node 410 may be released. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to a specified size is less than (or less than) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be greater than the power or heat generated by reception. Accordingly, the communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth smaller than the specified size among the portions of at least one bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to the specified value (e.g., 70%). (or less than), power consumption and heat generation can be reduced by disconnecting from the first node 410.

With respect to the embodiment described above, communication processor 620 may consider both the bandwidth portion of the uplink band and the bandwidth portion of the downlink. The communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is smaller than or equal to the specified size is greater than (or exceeds) a first value (e.g., 70%) and the utilization rate of the portion of the bandwidth portion of the downlink band that is smaller than or equal to the specified size is set to a first value (e.g., 70%). The connection with the first node 410 may be maintained based on confirming that the utilization rate of the bandwidth portion is greater than (or exceeds) the second value (e.g., 30%). Considering that the electronic device 101 may consume more power in a data transmission situation than in a data reception situation, the second value may be set lower than the first value. The communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is less than or equal to a specified size is less than (or less than) a first value (e.g., 70%), and the utilization rate of the portion of the bandwidth portion of the downlink band that is less than or equal to the specified size is set to a first value (e.g., 70%) or less. Based on confirming that the utilization rate of the bandwidth portion is less than (or less than) the second value (e.g., 30%), the connection with the first node 410 may be released.

The communication processor 620 may determine to maintain the connection with the first node 410 and continuously monitor the portion of the bandwidth between the first node 410 and the electronic device 101 .

The communication processor 620 releases the connection with the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is greater than (or exceeds) a specified size. It can be decided that

The communication processor 620 determines that the utilization of the portion of the bandwidth smaller than or equal to a specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 50%) (or, (less than), the connection with the first node 410 can be released. The magnitude (e.g., 50%) of the specified value compared after deciding to maintain the connection to the first node 410 is the magnitude of the specified value (e.g., 50%) compared to before the decision to maintain the connection to the first node 410. : 70%) may be smaller than that.

The communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is less than or equal to the specified size is less than (or less than) a third value (e.g., 50%) and that the utilization rate of the portion of the bandwidth portion of the bandwidth portion of the downlink band that is less than or equal to the specified size is lower than (or less than) a third value (e.g., 50%). Based on confirming that the utilization rate of the bandwidth portion is less than (or less than) the fourth value (eg, 10%), the connection with the first node 410 may be released. The third value compared after the decision to maintain the connection to the first node 410 may be smaller than the first value compared before the decision to maintain the connection to the first node 410 . The fourth value compared after the decision to maintain the connection to the first node 410 may be smaller than the second value compared before the decision to maintain the connection to the first node 410 .

The communication processor 620, through the method described above, maintains the connection to the first node 410 when the utilization rate of the portion of the bandwidth having a bandwidth of a specified size or less is relatively high, thereby reducing power consumption and heat generation. You can.

The communication processor 620 may determine whether to release the first cellular communication and/or whether to connect the second cellular communication according to the decision to disconnect from the first node 410 .

The communication processor 620 is a system that includes information about nodes adjacent to the first node 410 from the first node 410 while the electronic device 101 is in an RRC idle state. Information can be received. System information is 3GPP TS. 36.331 May include SIB 4 defined in v15.6. SIB 4 is adjacent to the first node 410 and may include information about a node capable of supporting first cellular communication, which is cellular communication supported by the first node 410. For example, SIB 4 is information required for connection with a node that can support first cellular communication, which is cellular communication supported by the first node 410, and includes physical identification information (PCI, physical cell identification) of the node, May include the frequency band used by the node.

The communication processor 620 determines whether there is an adjacent node supporting a bandwidth of less than (or less than) the specified size, based on information about the first node 410 and adjacent nodes included in the system information. You can. The specified size may be equal to the bandwidth of the secondary cellular communication (e.g., 20 MHz), but there is no limit. Communications processor 620 may determine to maintain the connection of the first cellular communication (or, based on confirming that a neighboring node supports a bandwidth of (or less than) the specified size, exists. You can decide not to perform the connection). Maintaining the connection of the first cellular communication involves disconnecting from the first node 410 and connecting to an adjacent node that supports the first cellular communication and supports a bandwidth of less than (or less than) a specified size. It can be included. Communications processor 620 may determine to disconnect the first cellular communication (or, based on confirming that there are no adjacent nodes supporting a bandwidth of less than (or less than) the specified size (or a second You can decide to perform a connection of cellular communication).

The communication processor 620 measures the measurement included in the RRC reconfiguration message received by the electronic device 101 through the first node 410 in the RRC connected state of the first cellular communication. An object (measurement object or measobject) can be received. The communication processor 620 may determine to maintain the connection of the first cellular communication based on confirming that a node with a bandwidth of less than (or less than) a specified size exists among the nodes included in the measurement target (or , it may be decided not to perform connection of the second cellular communication). Maintaining the connection of the first cellular communication involves disconnecting from the first node 410 and connecting to an adjacent node that supports the first cellular communication and supports a bandwidth of less than (or less than) a specified size. It can be included. The specified size may be the same size as the bandwidth of the second cellular communication, but there is no limit. Communications processor 620 may determine to disconnect the first cellular communication (or, based on confirming that there are no adjacent nodes supporting a bandwidth of less than (or less than) the specified size (or a second You can decide to perform a connection of cellular communication).

The communication processor 620 may maintain the connection of the first cellular communication based on confirmation that a frequency band identical to a pre-designated frequency band exists among the frequency bands included in the system information and/or measurement target. The pre-designated frequency band is a frequency band previously used for transmission and/or reception of data through second cellular communication, and is the frequency used by the cellular communication service provider for transmission and/or reception of data through first cellular communication. It may include the NR refarming band, which is a band. NR refarming band is a frequency band used to transmit and/or receive data through first cellular communication using at least part or all of the frequency band of second cellular communication, for example, N78 (e.g., 3500 MHz) , and the frequency band may vary depending on the operator's choice. According to one example, the communication processor 620 may perform first cellular communication using the NR refarming band, but may not be able to perform second cellular communication.

Communication processor 620 may perform a procedure to search for a neighboring node that supports the first cellular communication based on determining to maintain the connection of the first cellular communication.

The communication processor 620 may search for adjacent nodes supporting a frequency band of a specified size or less and/or adjacent nodes supporting a pre-designated frequency band based on system information and/or measurement target. The communication processor 620 controls the communication circuit 610 to receive a signal through a frequency band of a specified size or less or a pre-designated frequency band, and controls the communication circuit 610 to receive a signal of a specified size or less included in the system information and/or measurement object. By receiving a signal in a frequency band used by an adjacent node supporting the frequency band and/or an adjacent node supporting a pre-designated frequency band, an adjacent node supporting the first cellular communication can be searched.

When the communication processor 620 is connected to a node supporting first cellular communication (e.g., RRC connected state), the communication processor 620 may perform an operation of measuring the quality of a signal broadcast by an adjacent node included in the measurement target. there is. The communication processor 620 measures the quality of the signal broadcast by the adjacent node, and based on confirming that the quality satisfies specified conditions, provides a measurement report containing the quality of the signal broadcast by the adjacent node. Can be transmitted to the first node 410 or a cellular network.

The first node 410 or the cellular network that has received the measurement report may transmit a handover command to an adjacent node to the electronic device 101 according to the quality of the signal broadcast by the node included in the measurement report. The communication processor 620 may perform a series of operations (eg, initial connection) for connection to an adjacent node based on reception of the handover command.

When the communication processor 620 is disconnected from the first node 410 supporting first cellular communication (e.g., RRC idle state), the communication processor 620 checks the quality of the signal broadcast by the adjacent node and If the quality satisfies the specified conditions, connection with adjacent nodes (e.g., cell reselection) can be performed.

The communication processor 620 disconnects the first cellular communication and connects the second cellular communication based on confirmation that a pre-designated frequency band does not exist among the frequency bands included in the system information and/or measurement target. Connection can be made.

The communication processor 620 may perform a procedure to search for a node supporting the second cellular communication based on the determination to disconnect the first cellular communication and connect the second cellular communication.

The communication processor 620 may search for a node supporting second cellular communication based on system information and/or measurement target.

The communication processor 620 may search for a node supporting second cellular communication based on the frequency band used by the second node 450 included in the system information. The communication processor 620 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the system information, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The communication processor 620 may search for a node supporting second cellular communication based on the frequency band used by the second node 450 included in the measurement target. The communication processor 620 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the measurement target, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The communication processor 620 may search for a node that supports second cellular communication, and if at least one node is found, select the node with the smallest bandwidth. The communication processor 620 may perform a connection procedure with the selected node.

The communication processor 620 may search for a node that supports second cellular communication, and if at least one node is found, select a node with a smaller bandwidth than the currently connected node (eg, the first node 410). The communication processor 620 may perform a connection procedure with the selected node.

The communication processor 620 searches for a node supporting second cellular communication, and when at least one node is found, the quality of the searched node is greater than or equal to a specified value, and the currently connected node (e.g., the first node 410) A node with a smaller bandwidth can be selected. The communication processor 620 may perform a connection procedure with the selected node.

When the communication processor 620 is connected to a node supporting first cellular communication (e.g., RRC connected state), the communication processor 620 measures the quality of a signal broadcast by the second node 450 included in the measurement target. can be performed. The communication processor 620 measures the quality of the signal broadcast by the second node 450, which is a node supporting second cellular communication, and based on confirming that the quality satisfies specified conditions, the second node 450 ) may transmit a measurement report including the quality of the signal broadcasted to the first node 410 or the cellular network.

The first node 410 or the cellular network that has received the measurement report sends a handover command to the second node 450 to the electronic device according to the quality of the signal broadcast by the second node 450 included in the measurement report. It can be sent to (101). The communication processor 620 may perform a series of operations (eg, initial connection) for connection to the second node 450 based on reception of the handover command.

When the communication processor 620 is disconnected from the node supporting the first cellular communication (e.g., RRC idle state), the communication processor 620 checks the quality of the signal broadcast by the second node 450 and If the quality satisfies the specified conditions, connection (eg, cell reselection) with the second node 450 can be performed.

FIG. 7A is a diagram illustrating an embodiment 700 in which an electronic device determines whether to maintain a connection with a first node supporting first cellular communication, according to an embodiment.

The electronic device (e.g., the electronic device 101 in FIG. 6) may confirm in operation 701 that the electronic device 101 satisfies the specified condition.

The electronic device 101 may check whether the electronic device 101 satisfies a specified condition while connected to the first node 410 supporting first cellular communication.

The electronic device 101 may check whether the electronic device 101 satisfies a specified condition while connected through first cellular communication.

The specified conditions may include conditions related to the temperature of the electronic device 101. The designated condition may include a condition in which the temperature of the electronic device 101 is greater than or equal to a designated value.

The electronic device 101 may receive the temperature measured by a temperature sensor (eg, the sensor module 176 of FIG. 1). The temperature measured by the temperature sensor 176 may include the temperature of a portion of the electronic device 101 where the temperature sensor 176 is placed. The electronic device 101 may check whether the temperature measured by the temperature sensor 176 satisfies specified conditions. The electronic device 101 may confirm that the temperature measured by the temperature sensor 176 is greater than or equal to a specified value and determine that the electronic device 101 satisfies the specified condition.

The specified condition may include conditions related to the throughput of data transmitted or received by the electronic device 101. Conditions related to release of the first cellular communication may include a condition that the throughput is less than (or less than) a specified value.

Throughput of data transmission can be defined as the traffic amount of data transmitted and/or received per unit time. The electronic device 101 may monitor (or track) the amount of traffic generated by a running application (or background application). The electronic device 101 may monitor (or track) the traffic amount of data transmitted or received through first cellular communication and/or second cellular communication and check whether the throughput satisfies specified conditions. . The electronic device 101 may confirm that the throughput is less than (or less than) a specified value and determine that the electronic device 101 satisfies the specified condition.

The electronic device 101 may confirm that the temperature and/or throughput do not satisfy specified conditions and maintain the connection of the first cellular communication. The fact that the temperature and/or throughput do not meet the specified conditions may mean that the temperature of the electronic device 101 is below the specified value or that the throughput is above the specified value. Maintaining the connection of the first cellular communication may mean that the electronic device 101 can transmit and/or receive data through the first cellular communication. In response to confirming that the temperature and/or throughput do not satisfy the specified condition, the electronic device 101 maintains the connection of the first cellular communication and continuously checks the temperature and/or throughput to determine whether the specified condition is satisfied. You can check whether or not.

The specified conditions may include various conditions in addition to the temperature and throughput described above. For example, the specified condition may include a condition in which a display (eg, display module 160 of FIG. 1) is deactivated. For another example, the specified condition may include conditions related to whether or not the specified application is executed.

The electronic device 101 may transmit a signal indicating that the electronic device 101 satisfies a specified condition to the communication processor 620. Depending on the implementation, the signal indicating that the electronic device 101 satisfies the specified condition may be a signal requesting release of the connection with the first node 410 to which the electronic device 101 is connected or a request for release of the first cellular communication. It can also be implemented as a signal.

In operation 702, the electronic device 101 may check the utilization rate of a bandwidth portion of a specified size or less among at least one bandwidth portion between the electronic device 101 and the first node 410.

When the electronic device 101 is in an active state of first cellular communication, the electronic device 101 uses a device to transmit and/or receive data through the first node 410. It is possible to check whether the connection with the first node 410 is maintained based on the utilization rate of the bandwidth portion of at least one bandwidth portion of the specified size or less. The designated size may be the same size as the size of the bandwidth of the second cellular communication, but is not limited thereto.

The electronic device 101 may receive a radio resource control (RRC) connection reconfiguration message through the first node 410. The RRC connection reconfiguration message may include information on at least one portion of the bandwidth to be used for transmitting or receiving data through the first node 410. Information on at least one bandwidth portion may include identification information of the bandwidth portion (e.g., BWP-ID 1, BWP-ID2) and the frequency bandwidth of the bandwidth portion (e.g., 20 MHz, 100 MHz).

Before transmitting or receiving data, the electronic device 101 may receive downlink control information (DCI), which is a message for scheduling resources, from the first node 410. The electronic device 101 may check the information indicating the bandwidth portion included in the DCI and transmit or receive data through the bandwidth portion indicated by the information indicating the bandwidth portion. Each time data is transmitted or received, the portion of the bandwidth used may change, and the electronic device 101 may transmit or receive data through the changed bandwidth portion indicated by the information indicating the bandwidth portion.

While transmitting or receiving data, the electronic device 101 may generate history information on the portion of the bandwidth used for transmitting or receiving data and store it in a memory (eg, memory 130 in FIG. 1). The electronic device 101 determines the utilization rate of a bandwidth portion of a specified size or less among at least one bandwidth portion that the electronic device 101 uses to transmit and/or receive data through the first node 410 based on the history information. You can decide (or confirm).

The electronic device 101 may check the usage rate of a portion of the bandwidth of a specified size or less during a specified time period based on history information. For example, the electronic device 101 may check the utilization rate of the portion of the bandwidth below a specified size for all times included in the history information. For another example, the electronic device 101 may check the usage rate of a portion of the bandwidth of a specified size or less during a specified time included in the history information.

According to one example, the utilization rate of the bandwidth portion of at least a specified size or less among the portions of at least one bandwidth used to transmit and/or receive data through the first node 410 is the physical downlink shared (PDSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all bandwidth portions included in a channel) and the number of allocations of frequency bandwidths of bandwidth portions of a specified size or less. Alternatively, the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is determined by the physical uplink shared channel (PUSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all included bandwidth portions and the allocation number of frequency bandwidths of bandwidth portions of a specified size or less.

According to one example, the electronic device 101 is allocated one bandwidth portion, and when the size of the allocated bandwidth portion is less than or equal to the specified size, at least Among one or more bandwidth portions, the utilization rate of a bandwidth portion of a specified size or less may be 100%.

In operation 703, the electronic device 101 may check whether the confirmed usage rate satisfies a specified condition.

The specified condition may include a condition related to whether the confirmed utilization is greater than or equal to a specified size. The electronic device 101 is connected to the first node 410 through first cellular communication, based on the utilization rate of the bandwidth portion of the bandwidth portion of the bandwidth portion below the specified size between the first node 410 and the electronic device 101. You can decide whether to maintain the connection.

In operation 704, the electronic device 101 may maintain a connection with the first node 410 based on the confirmed usage rate satisfying a specified condition (operation 703-Y).

The electronic device 101 determines that the utilization of the portion of the bandwidth smaller than or equal to the specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is greater than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number exceeds the limit, the connection with the first node 410 can be maintained. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to the specified size is greater than (or exceeds) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be smaller than the power or heat generated by reception. Accordingly, the electronic device 101 determines that the utilization rate of the bandwidth portion of the bandwidth of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is greater than or equal to a specified value (e.g., 70%). (or, excess), power consumption and heat generation can be reduced by maintaining the connection with the first node 410.

The electronic device 101 may consider both the bandwidth portion of the uplink band and the bandwidth portion of the downlink band. The electronic device 101 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is smaller than or equal to the specified size is greater than (or exceeds) the first value (e.g., 70%) and the utilization rate of the portion of the bandwidth portion of the downlink band that is smaller than or equal to the specified size is set to a first value (e.g., 70%). The connection with the first node 410 may be maintained based on confirming that the utilization rate of the bandwidth portion is greater than (or exceeds) the second value (e.g., 30%). Considering that the electronic device 101 may consume more power in a data transmission situation than in a data reception situation, the second value may be set lower than the first value.

The communication processor 620 releases the connection with the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is greater than (or exceeds) a specified size. It can be decided that

The communication processor 620 determines that the utilization of the portion of the bandwidth smaller than or equal to a specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 50%) (or, (less than), the connection with the first node 410 can be released. The magnitude (e.g., 50%) of the specified value compared after deciding to maintain the connection to the first node 410 is the magnitude of the specified value (e.g., 50%) compared to before the decision to maintain the connection to the first node 410. : 70%) may be smaller than that.

The communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is less than or equal to the specified size is less than (or less than) a third value (e.g., 50%) and that the utilization rate of the portion of the bandwidth portion of the bandwidth portion of the downlink band that is less than or equal to the specified size is lower than (or less than) a third value (e.g., 50%). Based on confirming that the utilization rate of the bandwidth portion is less than (or less than) the fourth value (eg, 10%), the connection with the first node 410 may be released. The third value compared after the decision to maintain the connection to the first node 410 may be smaller than the first value compared before the decision to maintain the connection to the first node 410 . The fourth value compared after the decision to maintain the connection to the first node 410 may be smaller than the second value compared before the decision to maintain the connection to the first node 410 .

The communication processor 620, through the method described above, maintains the connection to the first node 410 when the utilization rate of the portion of the bandwidth having a bandwidth of a specified size or less is relatively high, thereby reducing power consumption and heat generation. You can.

The electronic device 101 may determine whether to maintain the first cellular communication and/or connect the second cellular communication based on the fact that the confirmed usage rate does not satisfy a specified condition (operation 703-N). Specific examples will be described later with reference to FIG. 7B.

FIG. 7B is a diagram illustrating an embodiment 710 in which an electronic device determines whether to connect to a second node supporting first cellular communication or to connect to a node supporting second cellular communication, according to an embodiment. am.

Referring to FIG. 7B, the electronic device (e.g., the electronic device 101 in FIG. 6) performs the operations shown in FIG. 7B based on confirming that the usage rate does not satisfy a specified condition (operation 703-N). can do.

The electronic device 101 determines that the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number is less than 100%, a series of operations to disconnect the connection with the first node 410 may be performed. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to a specified size is less than (or less than) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be greater than the power or heat generated by reception. Accordingly, the electronic device 101 determines that the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 70%). (or less than), power consumption and heat generation can be reduced by disconnecting from the first node 410. The electronic device 101 may perform a series of procedures to connect to another node before disconnecting the first node 410. Below, an embodiment in which the electronic device 101 connects to a new node instead of the first node 410 will be described.

In operation 711, the electronic device 101 may check system information and/or a frequency band supported by an adjacent node included in the measurement target.

The electronic device 101 is a system that includes information about nodes adjacent to the first node 410 from the first node 410 while the electronic device 101 is in the RRC idle state. Information can be received. System information is 3GPP TS. 36.331 May include SIB 4 defined in v15.6. SIB 4 is adjacent to the first node 410 and may include information about a node capable of supporting first cellular communication, which is cellular communication supported by the first node 410. For example, SIB 4 is information required for connection with a node that can support first cellular communication, which is cellular communication supported by the first node 410, and includes physical identification information (PCI, physical cell identification) of the node, May include the frequency band used by the node.

The electronic device 101 may check the frequency band supported by the adjacent node based on information about the node adjacent to the first node 410 included in the system information.

The electronic device 101 measures the measurement included in the RRC reconfiguration message received through the first node 410 in the RRC connected state of the first cellular communication. An object (measurement object or measobject) can be received.

The electronic device 101 may check the frequency band supported by the adjacent node based on information about the node adjacent to the first node 410 included in the measurement target.

In operation 712, the electronic device 101 may check whether the frequency band satisfies a specified condition.

The specified condition may include a condition where the bandwidth of the frequency band is less than or equal to a specified size. The specified size may be equal to the bandwidth of the secondary cellular communication (e.g., 20 MHz), but there is no limit.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band smaller than a specified size exists among the frequency bands included in the system information and/or measurement target.

The specified condition may include a condition in which the frequency band is a pre-designated frequency band. The pre-designated frequency band is a frequency band previously used for transmission and/or reception of data through second cellular communication, and is the frequency used by the cellular communication service provider for transmission and/or reception of data through first cellular communication. It may include the NR refarming band, which is a band.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band identical to a pre-designated frequency band exists among the frequency bands included in the system information and/or measurement target.

In operation 713, the electronic device 101 may establish a connection with an adjacent node while maintaining the first cellular communication based on the frequency band satisfying the specified condition (operation 712-Y).

The electronic device 101 may perform a procedure to search for a neighboring node that supports the first cellular communication, based on the decision to maintain the connection of the first cellular communication.

The electronic device 101 may search for adjacent nodes that support a frequency band of a specified size or less and/or adjacent nodes that support a pre-designated frequency band based on system information and/or measurement target. The electronic device 101 controls the communication circuit 610 to receive a signal in a frequency band of a specified size or less or through a pre-designated frequency band, and controls the communication circuit 610 to receive a signal of a frequency band of a specified size or less included in the system information and/or measurement object. By receiving a signal in a frequency band used by an adjacent node supporting the frequency band and/or an adjacent node supporting a pre-designated frequency band, an adjacent node supporting the first cellular communication can be searched.

When the electronic device 101 is connected to a node supporting first cellular communication (e.g., RRC connected state), the electronic device 101 may perform an operation of measuring the quality of a signal broadcast by an adjacent node included in the measurement target. there is. The electronic device 101 measures the quality of the signal broadcast by the adjacent node and, based on confirming that the quality satisfies specified conditions, provides a measurement report containing the quality of the signal broadcast by the adjacent node. Can be transmitted to the first node 410 or a cellular network.

The first node 410 or the cellular network that has received the measurement report may transmit a handover command to an adjacent node to the electronic device 101 according to the quality of the signal broadcast by the node included in the measurement report. The electronic device 101 may perform a series of operations (eg, initial connection) for connection to an adjacent node based on reception of a handover command.

When the electronic device 101 is disconnected from the first node 410 supporting first cellular communication (e.g., RRC idle state), the electronic device 101 checks the quality of the signal broadcast by the adjacent node, and If the quality satisfies the specified conditions, connection with adjacent nodes (e.g., cell reselection) can be performed.

In operation 714, the electronic device 101 may release the first cellular communication and/or connect through the second cellular communication based on the fact that the frequency band does not satisfy the specified condition (operation 712-N).

The electronic device 101 may perform a procedure to search for a node supporting the second cellular communication based on the decision to disconnect the first cellular communication and connect the second cellular communication.

The electronic device 101 may search for a node supporting second cellular communication based on system information and/or measurement target.

The electronic device 101 may search for a node that supports second cellular communication based on the frequency band used by the second node 450 included in the system information. The electronic device 101 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the system information, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The electronic device 101 may search for a node supporting second cellular communication based on the frequency band used by the second node 450 included in the measurement target. The electronic device 101 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the measurement target, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The electronic device 101 may search for a node that supports second cellular communication, and if at least one node is found, select the node with the smallest bandwidth. The electronic device 101 may perform a connection procedure with the selected node.

The electronic device 101 may search for a node that supports second cellular communication, and when at least one node is found, select a node with a smaller bandwidth than the currently connected node (eg, the first node 410). The electronic device 101 may perform a connection procedure with the selected node.

The electronic device 101 searches for a node supporting second cellular communication, and when at least one node is found, the quality of the searched node is greater than or equal to a specified value, and the currently connected node (e.g., the first node 410) A node with a smaller bandwidth can be selected. The electronic device 101 may perform a connection procedure with the selected node.

When the electronic device 101 is connected to a node supporting first cellular communication (e.g., RRC connected state), the electronic device 101 measures the quality of a signal broadcast by the second node 450 included in the measurement target. can be performed. The electronic device 101 measures the quality of a signal broadcast by the second node 450, which is a node supporting second cellular communication, and based on confirming that the quality satisfies specified conditions, the second node 450 ) may transmit a measurement report including the quality of the signal broadcasted to the first node 410 or the cellular network.

The first node 410 or the cellular network that has received the measurement report sends a handover command to the second node 450 to the electronic device according to the quality of the signal broadcast by the second node 450 included in the measurement report. It can be sent to (101). The electronic device 101 may perform a series of operations (eg, initial connection) for connection to the second node 450 based on reception of the handover command.

When the electronic device 101 is disconnected from the node supporting the first cellular communication (e.g., RRC idle state), the electronic device 101 checks the quality of the signal broadcast by the second node 450 and If the quality satisfies the specified conditions, connection (eg, cell reselection) with the second node 450 can be performed.

FIG. 8 illustrates an embodiment 800 in which an electronic device determines whether to connect to a second node or to a node supporting second cellular communication based on the frequency band of the second node. It is a drawing.

In the embodiment shown in FIG. 8, the electronic device 101 maintains the first cellular communication or connects the second cellular communication as the electronic device 101 satisfies the specified condition, regardless of the bandwidth usage rate. An embodiment of performing one of the following is shown.

The electronic device (e.g., the electronic device 101 in FIG. 6) may confirm in operation 810 that the electronic device 101 satisfies the specified condition.

The electronic device 101 may check whether the electronic device 101 satisfies a specified condition while connected to the first node 410 supporting first cellular communication.

The electronic device 101 may check whether the electronic device 101 satisfies a specified condition while connected through first cellular communication.

The specified conditions may include conditions related to the temperature of the electronic device 101. The designated condition may include a condition in which the temperature of the electronic device 101 is greater than or equal to a designated value.

The electronic device 101 may receive the temperature measured by a temperature sensor (eg, the sensor module 176 of FIG. 1). The temperature measured by the temperature sensor 176 may include the temperature of a portion of the electronic device 101 where the temperature sensor 176 is placed. The electronic device 101 may check whether the temperature measured by the temperature sensor 176 satisfies specified conditions. The electronic device 101 may confirm that the temperature measured by the temperature sensor 176 is greater than or equal to a specified value and determine that the electronic device 101 satisfies the specified condition.

The specified condition may include conditions related to the throughput of data transmitted or received by the electronic device 101. Conditions related to release of the first cellular communication may include a condition that the throughput is less than (or less than) a specified value.

Throughput of data transmission can be defined as the traffic amount of data transmitted and/or received per unit time. The electronic device 101 may monitor (or track) the amount of traffic generated by a running application (or background application). The electronic device 101 may monitor (or track) the traffic amount of data transmitted or received through first cellular communication and/or second cellular communication and check whether the throughput satisfies specified conditions. . The electronic device 101 may confirm that the throughput is less than (or less than) a specified value and determine that the electronic device 101 satisfies the specified condition.

The electronic device 101 may confirm that the temperature and/or throughput do not satisfy specified conditions and maintain the connection of the first cellular communication. The fact that the temperature and/or throughput do not meet the specified conditions may mean that the temperature of the electronic device 101 is below the specified value or that the throughput is above the specified value. Maintaining the connection of the first cellular communication may mean that the electronic device 101 can transmit and/or receive data through the first cellular communication. In response to confirming that the temperature and/or throughput do not satisfy the specified condition, the electronic device 101 maintains the connection of the first cellular communication and continuously checks the temperature and/or throughput to determine whether the specified condition is satisfied. You can check whether or not.

The specified conditions may include various conditions in addition to the temperature and throughput described above. For example, the specified condition may include a condition in which a display (eg, display module 160 of FIG. 1) is deactivated. For another example, the specified condition may include conditions related to whether or not the specified application is executed.

The electronic device 101 may transmit a signal indicating that the electronic device 101 satisfies a specified condition to the communication processor 620. Depending on the implementation, the signal indicating that the electronic device 101 satisfies the specified condition may be a signal requesting release of the connection with the first node 410 to which the electronic device 101 is connected or a request for release of the first cellular communication. It can also be implemented as a signal.

In operation 820, the electronic device 101 may check system information and/or a frequency band supported by an adjacent node included in the measurement target.

The electronic device 101 is a system that includes information about nodes adjacent to the first node 410 from the first node 410 while the electronic device 101 is in the RRC idle state. Information can be received. System information is 3GPP TS. 36.331 May include SIB 4 defined in v15.6. SIB 4 is adjacent to the first node 410 and may include information about a node capable of supporting first cellular communication, which is cellular communication supported by the first node 410. For example, SIB 4 is information required for connection with a node that can support first cellular communication, which is cellular communication supported by the first node 410, and includes physical identification information (PCI, physical cell identification) of the node, May include the frequency band used by the node.

The electronic device 101 may check the frequency band supported by the adjacent node based on information about the node adjacent to the first node 410 included in the system information.

The electronic device 101 measures the measurement included in the RRC reconfiguration message received through the first node 410 in the RRC connected state of the first cellular communication. An object (measurement object or measobject) can be received.

The electronic device 101 may check the frequency band supported by the adjacent node based on information about the node adjacent to the first node 410 included in the measurement target.

In operation 830, the electronic device 101 may check whether the frequency band satisfies a specified condition.

The specified condition may include a condition where the bandwidth of the frequency band is less than or equal to a specified size. The specified size may be equal to the bandwidth of the secondary cellular communication (e.g., 20 MHz), but there is no limit.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band smaller than a specified size exists among the frequency bands included in the system information and/or measurement target.

The specified condition may include a condition in which the frequency band is a pre-designated frequency band. The pre-designated frequency band is a frequency band previously used for transmission and/or reception of data through second cellular communication, and is the frequency used by the cellular communication service provider for transmission and/or reception of data through first cellular communication. It may include the NR refarming band, which is a band. NR refarming band is a frequency band used to transmit and/or receive data through first cellular communication using at least part or all of the frequency band of second cellular communication, for example, N78 (e.g., 3500 MHz) , and the frequency band may vary depending on the operator's choice. According to one example, the communication processor 620 may perform first cellular communication using the NR refarming band, but may not be able to perform second cellular communication.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band identical to a pre-designated frequency band exists among the frequency bands included in the system information and/or measurement target.

In operation 840, the electronic device 101 may establish a connection with an adjacent node while maintaining first cellular communication based on the frequency band satisfying a specified condition (operation 830-Y).

The electronic device 101 may perform a procedure to search for a neighboring node that supports the first cellular communication, based on the decision to maintain the connection of the first cellular communication.

The electronic device 101 may search for adjacent nodes that support a frequency band of a specified size or less and/or adjacent nodes that support a pre-designated frequency band based on system information and/or measurement target. The electronic device 101 controls the communication circuit 610 to receive a signal in a frequency band of a specified size or less or through a pre-designated frequency band, and controls the communication circuit 610 to receive a signal of a frequency band of a specified size or less included in the system information and/or measurement object. By receiving a signal in a frequency band used by an adjacent node supporting the frequency band and/or an adjacent node supporting a pre-designated frequency band, an adjacent node supporting the first cellular communication can be searched.

When the electronic device 101 is connected to a node supporting first cellular communication (e.g., RRC connected state), the electronic device 101 may perform an operation of measuring the quality of a signal broadcast by an adjacent node included in the measurement target. there is. The electronic device 101 measures the quality of the signal broadcast by the adjacent node and, based on confirming that the quality satisfies specified conditions, provides a measurement report containing the quality of the signal broadcast by the adjacent node. Can be transmitted to the first node 410 or a cellular network.

The first node 410 or the cellular network that has received the measurement report may transmit a handover command to an adjacent node to the electronic device 101 according to the quality of the signal broadcast by the node included in the measurement report. The electronic device 101 may perform a series of operations (eg, initial connection) for connection to an adjacent node based on reception of a handover command.

When the electronic device 101 is disconnected from the first node 410 supporting first cellular communication (e.g., RRC idle state), the electronic device 101 checks the quality of the signal broadcast by the adjacent node, and If the quality satisfies the specified conditions, connection with adjacent nodes (e.g., cell reselection) can be performed.

In operation 850, the electronic device 101 may release the first cellular communication and/or connect through the second cellular communication based on the fact that the frequency band does not satisfy the specified condition (operation 830-N).

The electronic device 101 may perform a procedure to search for a node supporting the second cellular communication based on the decision to disconnect the first cellular communication and connect the second cellular communication.

The electronic device 101 may search for a node supporting second cellular communication based on system information and/or measurement target.

The electronic device 101 may search for a node that supports second cellular communication based on the frequency band used by the second node 450 included in the system information. The electronic device 101 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the system information, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The electronic device 101 may search for a node supporting second cellular communication based on the frequency band used by the second node 450 included in the measurement target. The electronic device 101 controls the communication circuit 610 to receive a signal in the frequency band used by the second node 450 included in the measurement target, and the second node 450 included in the system information By receiving a signal in the frequency band used by , a node supporting second cellular communication can be searched.

The electronic device 101 may search for a node that supports second cellular communication, and if at least one node is found, select the node with the smallest bandwidth. The electronic device 101 may perform a connection procedure with the selected node.

The electronic device 101 may search for a node that supports second cellular communication, and when at least one node is found, select a node with a smaller bandwidth than the currently connected node (eg, the first node 410). The electronic device 101 may perform a connection procedure with the selected node.

The electronic device 101 searches for a node supporting second cellular communication, and when at least one node is found, the quality of the searched node is greater than or equal to a specified value, and the currently connected node (e.g., the first node 410) A node with a smaller bandwidth can be selected. The electronic device 101 may perform a connection procedure with the selected node.

When the electronic device 101 is connected to a node supporting first cellular communication (e.g., RRC connected state), the electronic device 101 measures the quality of a signal broadcast by the second node 450 included in the measurement target. can be performed. The electronic device 101 measures the quality of a signal broadcast by the second node 450, which is a node supporting second cellular communication, and based on confirming that the quality satisfies specified conditions, the second node 450 ) may transmit a measurement report including the quality of the signal broadcasted to the first node 410 or the cellular network.

The first node 410 or the cellular network that has received the measurement report sends a handover command to the second node 450 to the electronic device according to the quality of the signal broadcast by the second node 450 included in the measurement report. It can be sent to (101). The electronic device 101 may perform a series of operations (eg, initial connection) for connection to the second node 450 based on reception of the handover command.

When the electronic device 101 is disconnected from the node supporting the first cellular communication (e.g., RRC idle state), the electronic device 101 checks the quality of the signal broadcast by the second node 450 and If the quality satisfies specified conditions, connection (e.g., cell reselection) with the second node 450 can be performed.

FIG. 9 is an operation flowchart illustrating a method 900 of operating an electronic device according to an embodiment.

In operation 910, the electronic device (e.g., the electronic device 101 of FIG. 6) selects one or more bandwidth portions between the electronic device 101 and the first node (e.g., the first node 410 of FIG. 5). You can check the utilization of the bandwidth portion below the specified size.

The electronic device 101 determines whether to maintain a connection with the first node 410 based on the electronic device 101 satisfying specified conditions, between the electronic device 101 and the first node 410. You can check the utilization rate of the bandwidth portion of at least one bandwidth portion of the specified size or less.

When the electronic device 101 is in an active state of first cellular communication, the electronic device 101 uses a device to transmit and/or receive data through the first node 410. It is possible to check whether the connection with the first node 410 is maintained based on the utilization rate of a bandwidth portion of at least one bandwidth portion of a specified size or less. The designated size may be the same size as the size of the bandwidth of the second cellular communication, but is not limited thereto.

The electronic device 101 may receive a radio resource control (RRC) connection reconfiguration message through the first node 410. The RRC connection reconfiguration message may include information on at least one portion of the bandwidth to be used for transmitting or receiving data through the first node 410. Information on at least one bandwidth portion may include identification information of the bandwidth portion (e.g., BWP-ID 1, BWP-ID2) and the frequency bandwidth of the bandwidth portion (e.g., 20 MHz, 100 MHz).

Before transmitting or receiving data, the electronic device 101 may receive downlink control information (DCI), which is a message for scheduling resources, from the first node 410. The electronic device 101 may check the information indicating the bandwidth portion included in the DCI and transmit or receive data through the bandwidth portion indicated by the information indicating the bandwidth portion. Each time data is transmitted or received, the portion of the bandwidth used may change, and the electronic device 101 may transmit or receive data through the changed bandwidth portion indicated by the information indicating the bandwidth portion.

While transmitting or receiving data, the electronic device 101 may generate history information on the portion of the bandwidth used for transmitting or receiving data and store it in a memory (eg, memory 130 in FIG. 1). The electronic device 101 determines the utilization rate of a bandwidth portion of a specified size or less among at least one bandwidth portion that the electronic device 101 uses to transmit and/or receive data through the first node 410 based on the history information. You can decide (or confirm).

The electronic device 101 may check the usage rate of a portion of the bandwidth of a specified size or less during a specified time period based on history information. For example, the electronic device 101 may check the utilization rate of the portion of the bandwidth below a specified size for all times included in the history information. For another example, the electronic device 101 may check the usage rate of a portion of the bandwidth of a specified size or less during a specified time included in the history information.

According to one example, the utilization rate of the bandwidth portion of at least a specified size or less among the portions of at least one bandwidth used to transmit and/or receive data through the first node 410 is the physical downlink shared (PDSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all bandwidth portions included in a channel) and the number of allocations of frequency bandwidths of bandwidth portions of a specified size or less. Alternatively, the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is determined by the physical uplink shared channel (PUSCH) allocated to the electronic device 101. It may be a ratio of the number of allocations of all included bandwidth portions and the allocation number of frequency bandwidths of bandwidth portions of a specified size or less.

According to one example, the electronic device 101 is allocated one bandwidth portion, and when the size of the allocated bandwidth portion is less than or equal to the specified size, at least Among one or more bandwidth portions, the utilization rate of a bandwidth portion of a specified size or less may be 100%.

In operation 920, the electronic device 101 may maintain a connection with the first node 410 based on the usage rate being greater than or equal to a specified value.

The electronic device 101 determines that the utilization of the portion of the bandwidth smaller than or equal to the specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is greater than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number exceeds the limit, the connection with the first node 410 can be maintained. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to the specified size is greater than (or exceeds) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be smaller than the power or heat generated by reception. Accordingly, the electronic device 101 determines that the utilization rate of the bandwidth portion of the bandwidth of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is greater than or equal to a specified value (e.g., 70%). (or, excess), power consumption and heat generation can be reduced by maintaining the connection with the first node 410.

The electronic device 101 may consider both the bandwidth portion of the uplink band and the bandwidth portion of the downlink band. The electronic device 101 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is smaller than or equal to the specified size is greater than (or exceeds) the first value (e.g., 70%) and the utilization rate of the portion of the bandwidth portion of the downlink band that is smaller than or equal to the specified size is set to a first value (e.g., 70%). The connection with the first node 410 may be maintained based on confirming that the utilization rate of the bandwidth portion is greater than (or exceeds) the second value (e.g., 30%). Considering that the electronic device 101 may consume more power in a data transmission situation than in a data reception situation, the second value may be set lower than the first value.

The communication processor 620 releases the connection with the first node 410 based on confirming that the size of the bandwidth of the portion of the bandwidth used for the initial connection with the first node 410 is greater than (or exceeds) a specified size. It can be decided that

The communication processor 620 determines that the utilization of the portion of the bandwidth smaller than or equal to a specified size among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 50%) (or, (less than), the connection with the first node 410 can be released. The magnitude (e.g., 50%) of the specified value compared after deciding to maintain the connection to the first node 410 is the magnitude of the specified value (e.g., 50%) compared to before the decision to maintain the connection to the first node 410. : 70%) may be smaller than that.

The communication processor 620 determines that the utilization rate of the bandwidth portion of the bandwidth portion of the uplink band that is less than or equal to the specified size is less than (or less than) a third value (e.g., 50%) and that the utilization rate of the portion of the bandwidth portion of the bandwidth portion of the downlink band that is less than or equal to the specified size is lower than (or less than) a third value (e.g., 50%). Based on confirming that the utilization rate of the bandwidth portion is less than (or less than) the fourth value (eg, 10%), the connection with the first node 410 may be released. The third value compared after the decision to maintain the connection to the first node 410 may be smaller than the first value compared before the decision to maintain the connection to the first node 410 . The fourth value compared after the decision to maintain the connection to the first node 410 may be smaller than the second value compared before the decision to maintain the connection to the first node 410 .

The communication processor 620, through the method described above, maintains the connection to the first node 410 when the utilization rate of the portion of the bandwidth having a bandwidth of a specified size or less is relatively high, thereby reducing power consumption and heat generation. You can.

The electronic device 101 determines that the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 70%) (or, Based on confirmation that the number is less than 100%, a series of operations to disconnect the connection with the first node 410 may be performed. Among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410, the utilization rate of the portion of the bandwidth smaller than or equal to a specified size is less than (or less than) a specified value (e.g., 70%). 1 Data transmission through first cellular communication or second cellular communication using a bandwidth of relatively small power or heat generated by data transmission and/or reception through node 410 (or first cellular communication) And/or it may mean that it may be greater than the power or heat generated by reception. Accordingly, the electronic device 101 determines that the utilization rate of the bandwidth portion of at least a specified size or less among at least one portion of the bandwidth used to transmit and/or receive data through the first node 410 is less than or equal to a specified value (e.g., 70%). (or less than), power consumption and heat generation can be reduced by disconnecting from the first node 410.

The electronic device 101 may check whether the system information and/or the frequency band included in the measurement target satisfies specified conditions through the operation of disconnecting from the first node 410.

The specified condition may include a condition where the bandwidth of the frequency band is less than or equal to a specified size. The specified size may be equal to the bandwidth of the secondary cellular communication (e.g., 20 MHz), but there is no limit.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band smaller than a specified size exists among the frequency bands included in the system information and/or measurement target.

The specified condition may include a condition in which the frequency band is a pre-designated frequency band. The pre-designated frequency band is a frequency band previously used for transmission and/or reception of data through second cellular communication, and is the frequency used by the cellular communication service provider for transmission and/or reception of data through first cellular communication. It may include the NR refarming band, which is a band.

The electronic device 101 may determine that the frequency band satisfies the specified condition when a frequency band identical to a pre-designated frequency band exists among the frequency bands included in the system information and/or measurement target.

The electronic device 101 may establish a connection with an adjacent node while maintaining first cellular communication based on the frequency band satisfying specified conditions.

The electronic device 101 may release the first cellular communication and/or connect through the second cellular communication based on the fact that the frequency band does not satisfy the specified condition.

Electronic devices according to various embodiments may include a communication circuit that supports first cellular communication and/or second cellular communication. The electronic device may include an application processor. The electronic device may include a communications processor. When the electronic device satisfies a specified condition while connected through the first cellular communication, the communication processor generates at least one bandwidth part (bandwidthpart) between the first node connected through the first cellular communication and the electronic device. You can check the utilization rate of the bandwidth portion of BWP) that is less than the specified size. The communication processor may be configured to maintain a connection with the first node based on the ratio of the bandwidth portion being greater than or equal to a specified value.

In an electronic device according to various embodiments, the communication processor may be set to disconnect from the first node based on the usage rate of the bandwidth portion being less than or equal to the specified value.

In an electronic device according to various embodiments, the communication processor may include system information and/or measurement configuration including information on an adjacent node adjacent to the first node received from the first node and supporting the first cellular communication ( Based on the measurement configuration, it can be confirmed whether the frequency bandwidth supported by the adjacent node is less than or equal to a specified size. The communication processor may be configured to determine whether to maintain the first cellular communication based on the confirmation result.

In an electronic device according to various embodiments, the communication processor may be set to perform connection with the adjacent node through the first cellular communication when the frequency bandwidth supported by the adjacent node is less than or equal to the specified value.

In an electronic device according to various embodiments, the communication processor is set to release the first cellular communication and connect to a node supporting the second cellular communication when the frequency bandwidth supported by the adjacent node is greater than the specified value. It can be.

In electronic devices according to various embodiments, the designated size may be the same size as the frequency bandwidth of the second cellular communication.

In an electronic device according to various embodiments, the communication processor is configured to communicate with the second node through the first cellular communication when a frequency band supported by the second node overlaps at least partially with a frequency band supported by the second cellular communication. It can be set to perform a connection with.

In an electronic device according to various embodiments, the communication processor determines a utilization rate of a bandwidth portion having a bandwidth of less than or equal to the specified value among the plurality of bandwidth portions while transmitting the data and among the plurality of bandwidth portions while receiving the data. It may be set to determine whether to maintain the connection with the first node based on the utilization rate of the bandwidth portion having a bandwidth less than or equal to the specified value.

In an electronic device according to various embodiments, when the electronic device is in an idle state of the first cellular communication, the communication processor determines the size of the bandwidth portion included in the system information transmitted by the first node. You can check it. The communication processor may be configured to determine whether to maintain a connection with the first node based on whether the size of the bandwidth portion is less than or equal to the specified size.

In an electronic device according to various embodiments, the specified condition may include a condition related to the temperature of a portion of the electronic device.

A method of operating an electronic device according to various embodiments includes, when a specified condition is satisfied while the electronic device is connected through the first cellular communication, at least one node between the first node connected through the first cellular communication and the electronic device. It may include an operation to check the usage rate of the bandwidth part of the bandwidth part (BWP) of the specified size or less. A method of operating an electronic device may include maintaining a connection with the first node based on the fact that the utilization rate of the bandwidth portion is greater than or equal to a specified value.

A method of operating an electronic device according to various embodiments may further include disconnecting from the first node based on the ratio of the bandwidth portion being less than or equal to the specified value.

A method of operating an electronic device according to various embodiments includes, after determining to disconnect from the first node, information about an adjacent node adjacent to the first node and supporting the first cellular communication received from the first node. It may further include checking whether the frequency bandwidth supported by the adjacent node is less than or equal to a specified size based on system information and/or measurement configuration including. The method of operating the electronic device may further include determining whether to maintain the first cellular communication based on the confirmation result.

In a method of operating an electronic device according to various embodiments, the operation of determining whether to maintain the first cellular communication includes, when the frequency bandwidth supported by the adjacent node is less than or equal to the specified value, communicating with the adjacent node through the first cellular communication. It may include the operation of performing a connection.

In a method of operating an electronic device according to various embodiments, the operation of determining whether to maintain the first cellular communication includes releasing the first cellular communication when the frequency bandwidth supported by the adjacent node is more than the specified value, and It may include an operation of connecting to a node that supports cellular communication.

In a method of operating an electronic device according to various embodiments, the specified size may be the same size as the frequency bandwidth of the second cellular communication.

In a method of operating an electronic device according to various embodiments, the operation of determining whether to maintain the first cellular communication includes, when the frequency band supported by the second node overlaps at least part of the frequency band supported by the second cellular communication, It may include an operation of connecting to the second node through the first cellular communication.

A method of operating an electronic device according to various embodiments includes a utilization rate of a bandwidth portion of a plurality of bandwidth portions having a bandwidth of less than or equal to the specified value among a plurality of bandwidth portions while transmitting data, and a utilization rate of a bandwidth portion of the plurality of bandwidth portions having a bandwidth of less than or equal to the specified value while receiving data. It may further include determining whether to maintain the connection with the first node based on the utilization rate of the bandwidth portion having a bandwidth of .

A method of operating an electronic device according to various embodiments includes checking the size of the bandwidth portion included in system information transmitted by the first node when the electronic device is in an idle state of the first cellular communication. It may further include. The method of operating the electronic device may further include determining whether to maintain the connection with the first node based on whether the size of the bandwidth portion is less than or equal to the specified size.

In a method of operating an electronic device according to various embodiments, the specified condition may include a condition related to the temperature of a portion of the electronic device.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. As used herein, “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to that component in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and this term refers to cases where data is semi-permanently stored in the storage medium. There is no distinction between temporary storage cases.

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

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

Claims (20)

In electronic devices,
communication circuitry supporting first cellular communication and/or second cellular communication;
application processor; and
Includes a communications processor;
The communication processor is
When the electronic device satisfies a specified condition while connected through the first cellular communication, a specified one of at least one bandwidth part (BWP) between the first node connected through the first cellular communication and the electronic device Check the utilization of the portion of bandwidth below the size,
An electronic device configured to maintain a connection with the first node based on the ratio of the bandwidth portion being greater than or equal to a specified value.
According to claim 1,
The communication processor is
An electronic device configured to disconnect from the first node based on the utilization of the bandwidth portion being less than or equal to the specified value.
According to clause 2,
The communication processor is
Frequency supported by the adjacent node based on system information and/or measurement configuration received from the first node and including information on the adjacent node adjacent to the first node and supporting the first cellular communication Check whether the bandwidth is less than or equal to the specified size,
An electronic device configured to determine whether to maintain the first cellular communication based on the confirmation result.
According to claim 3,
The communication processor is
An electronic device configured to connect to the adjacent node through the first cellular communication when the frequency bandwidth supported by the adjacent node is less than or equal to the specified value.
According to claim 3,
The communication processor is
An electronic device configured to release the first cellular communication and connect to a node supporting the second cellular communication when the frequency bandwidth supported by the adjacent node is greater than or equal to the specified value.
According to claim 1,
The size specified above is
An electronic device having the same size as the frequency bandwidth of the second cellular communication.
According to claim 3,
The communication processor is
An electronic device configured to perform connection with the second node through the first cellular communication when a frequency band supported by the second node overlaps at least in part with a frequency band supported by the second cellular communication.
According to clause 1,
The communication processor is
While transmitting the data, the utilization of a bandwidth portion of the plurality of bandwidth portions having a bandwidth of less than or equal to the specified value and the utilization of a bandwidth portion of the plurality of bandwidth portions having a bandwidth of less than or equal to the specified value while receiving the data. An electronic device configured to determine whether to maintain a connection with the first node based on the electronic device.
According to clause 1,
The communication processor is
When the electronic device is in an idle state of the first cellular communication, check the size of the bandwidth portion included in system information transmitted by the first node,
An electronic device configured to determine whether to maintain a connection with the first node based on whether the size of the bandwidth portion is less than or equal to the specified size.
According to claim 1,
The conditions specified above are
An electronic device comprising conditions related to the temperature of a portion of the electronic device.
In a method of operating an electronic device supporting first cellular communication and second cellular communication,
When the electronic device satisfies a specified condition while connected through the first cellular communication, a specified one of at least one bandwidth part (BWP) between the first node connected through the first cellular communication and the electronic device An operation to check the utilization of a portion of the bandwidth below the size;
A method of operating an electronic device, including maintaining a connection with the first node based on the utilization rate of the bandwidth portion being greater than or equal to a specified value.
According to claim 11,
The method of operating the electronic device is
A method of operating an electronic device further comprising disconnecting from the first node based on the ratio of the bandwidth portion being less than or equal to the specified value.
According to clause 12,
The method of operating the electronic device is
After determining to disconnect from the first node, system information and/or measurement configuration including information of a neighboring node adjacent to the first node and supporting the first cellular communication received from the first node. An operation of checking whether the frequency bandwidth supported by the adjacent node is less than or equal to a specified size based on (measurement configuration); and
A method of operating an electronic device further comprising determining whether to maintain the first cellular communication based on the verification result.
According to claim 13,
The operation of determining whether to maintain the first cellular communication is
A method of operating an electronic device, including performing a connection with the adjacent node through the first cellular communication when the frequency bandwidth supported by the adjacent node is less than or equal to the specified value.
According to claim 13,
The operation of determining whether to maintain the first cellular communication is
When the frequency bandwidth supported by the adjacent node is greater than or equal to the specified value, an operation of disabling the first cellular communication and connecting to a node supporting the adjacent cellular communication.
According to claim 11,
The size specified above is
A method of operating an electronic device having the same size as the frequency bandwidth of the second cellular communication.
According to claim 13,
The operation of determining whether to maintain the first cellular communication is
When the frequency band supported by the second node overlaps at least in part with the frequency band supported by the second cellular communication, an operation of performing a connection with the second node through the first cellular communication. How it works.
According to clause 11,
The method of operating the electronic device is
Based on the utilization of a bandwidth portion of the plurality of bandwidth portions having a bandwidth of less than or equal to the specified value while transmitting the data and the utilization of a bandwidth portion of the plurality of bandwidth portions having a bandwidth of less than or equal to the specified value while receiving the data. A method of operating an electronic device further comprising determining whether to maintain a connection with the first node.
According to clause 11,
The method of operating the electronic device is
When the electronic device is in an idle state of the first cellular communication, checking the size of the bandwidth portion included in system information transmitted by the first node; and
A method of operating an electronic device further comprising determining whether to maintain a connection with the first node based on whether the size of the bandwidth portion is less than or equal to the specified size.
According to claim 11,
The conditions specified above are
A method of operating an electronic device, including conditions related to the temperature of a portion of the electronic device.

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