The disclosure relates to a method for controlling an electronic device based on a temperature and an electronic device therefor.
In accordance with the development of digital technologies, various types of electronic devices, such as a personal digital assistant (PDA), an electronic notebook, a smartphone, a tablet personal computer (PC), or a wearable device, have been widely used. The electronic devices have been continuously improved in terms of hardware and/or software of the electronic devices to support and increase functions thereof.
As electronic devices provide various services, the issue of overheating has emerged due to excessive usage thereof. For example, when a high-performance application is used on an electronic device for a long period of time, the temperature of the electronic device may increase. The temperature increase of electronic devices may cause damage to the electronic devices. Alternatively, the application of fifth generation (5G) technologies such as millimeter wave (mmWave) in electronic devices may cause specific absorption rate (SAR) issues.
The above information is presented as background information only to assist with an understanding of the disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure.
An electronic device may adopt various methods to prevent the temperature of the electronic device from rising to a predetermined temperature or higher. Among various improvement methods, a method of limiting the operation of a communication module is mainly used. The method of limiting the communication module may involve limiting the maximum transmission power of a transmission signal or limiting the number of transmission signals.
Aspects of the disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the disclosure is to provide a method and device for preventing sudden performance limitations in communications by linearly controlling operations of a communication module based on the temperature of an electronic device.
Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments.
In accordance with an aspect of the disclosure, an electronic device is provided. The electronic device includes a temperature sensor, a communication circuit, memory storing one or more computer programs, and one or more processors operatively connected to at least one of the temperature sensor, the communication circuit, or the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic device to measure a current temperature of the electronic device using the temperature sensor, identify a lowest configuration temperature and a highest configuration temperature of the electronic device from the memory, calculate a temperature coefficient, based on at least one of the measured current temperature of the electronic device, the identified lowest configuration temperature, or the identified highest configuration temperature, and control an operation of the communication circuit, based on the calculated temperature coefficient.
In accordance with another aspect of the disclosure, an operation method performed by an electronic device is provided. The operation method includes measuring a current temperature of the electronic device by using a temperature sensor of the electronic device, identifying a lowest configuration temperature and a highest configuration temperature of the electronic device from memory of the electronic device, calculating a temperature coefficient, based on at least one of the measured current temperature of the electronic device, the identified lowest configuration temperature, or the identified highest configuration temperature, and controlling an operation of a communication circuit of the electronic device, based on the calculated temperature coefficient.
In accordance with another aspect of the disclosure, one or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to perform operations are provided. The operations include measuring a current temperature of the electronic device by using a temperature sensor of the electronic device, identifying a lowest configuration temperature and a highest configuration temperature of the electronic device from memory of the electronic device, calculating a temperature coefficient, based on at least one of the measured current temperature of the electronic device, the identified lowest configuration temperature, or the identified highest configuration temperature, and controlling an operation of a communication circuit of the electronic device, based on the calculated temperature coefficient.
According to an embodiment of the disclosure, by continuously monitoring the current temperature of the electronic device, it is possible to control the communication performance gradually in proportion to the current temperature of the electronic device, rather than abruptly limiting communication performance even if the current temperature of the electronic device exceeds the maximum configuration temperature.
According to an embodiment of the disclosure, it is possible to preconfigure a lowest configuration temperature and a highest configuration temperature of the electronic device and linearly control an operation of the communication module, based on the relationship between a current temperature of the electronic device and the lowest configuration temperature and the highest configuration temperature of the electronic device.
According to an embodiment of the disclosure, it is possible to stably control heat of the electronic device while maintaining the communication performance of the electronic device, based on the temperature coefficient which is calculated from the relationship between a current temperature and the lowest configuration temperature and the highest configuration temperature of the electronic device.
According to an embodiment of the disclosure, it is possible to improve the performance of the electronic device and provide a better use environment to users by maintaining a section operating at the maximum transmission power of the communication module for a predetermined time period according to the current temperature of the electronic device.
Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the disclosure.
The above and other aspects, features, and advantages of certain embodiments of the disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:
The same reference numerals are used to represent the same elements throughout the drawings.
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the disclosure is provided for illustration purpose only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.
It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface” includes reference to one or more of such surfaces.
It should be appreciated that the blocks in each flowchart and combinations of the flowcharts may be performed by one or more computer programs which include instructions. The entirety of the one or more computer programs may be stored in a single memory device or the one or more computer programs may be divided with different portions stored in different multiple memory devices.
Any of the functions or operations described herein can be processed by one processor or a combination of processors. The one processor or the combination of processors is circuitry performing processing and includes circuitry like an application processor (AP, e.g. a central processing unit (CPU)), a communication processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a Wi-Fi chip, a Bluetooth® chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on chip (SoC), an IC, or the like.
Referring to
The processor 120 may execute, for example, software (e.g., a program 140) to control at least one other component (e.g., a hardware or software component) of the electronic device 101 coupled with the processor 120, and may perform various data processing or computation. According to one embodiment, as at least part of the data processing or computation, the processor 120 may store a command or data received from another component (e.g., the sensor module 176 or the communication module 190) in volatile memory 132, process the command or the data stored in the volatile memory 132, and store resulting data in non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor 121. For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or to be specific to a specified function. The auxiliary processor 123 may be implemented as separate from, or as part of the main processor 121.
The auxiliary processor 123 may control at least some of functions or states related to at least one component (e.g., the display module 160, the sensor module 176, or the communication module 190) among the components of the electronic device 101, instead of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or together with the main processor 121 while the main processor 121 is in an active state (e.g., executing an application). According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module 180 or the communication module 190) functionally related to the auxiliary processor 123. According to an embodiment, the auxiliary processor 123 (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device 101 where the artificial intelligence is performed or via a separate server (e.g., the server 108). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure.
The memory 130 may store various data used by at least one component (e.g., the processor 120 or the sensor module 176) of the electronic device 101. The various data may include, for example, software (e.g., the program 140) and input data or output data for a command related thereto. The memory 130 may include the volatile memory 132 or the non-volatile memory 134.
The program 140 may be stored in the memory 130 as software, and may include, for example, an operating system (OS) 142, middleware 144, or an application 146.
The input module 150 may receive a command or data to be used by another component (e.g., the processor 120) of the electronic device 101, from the outside (e.g., a user) of the electronic device 101. The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a 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. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker.
The display module 160 may visually provide information to the outside (e.g., a user) of the electronic device 101. The display module 160 may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module 160 may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch.
The audio module 170 may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module 170 may obtain the sound via the input module 150, or output the sound via the sound output module 155 or a headphone of an external electronic device (e.g., an electronic device 102) directly (e.g., wiredly) or wirelessly coupled with the electronic device 101.
The sensor module 176 may detect an operational state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) external to the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
The interface 177 may support one or more specified protocols to be used for the electronic device 101 to be coupled with the external electronic device (e.g., the electronic device 102) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.
A connecting terminal 178 may include a connector via which the electronic device 101 may be physically connected with the external electronic device (e.g., the electronic device 102). According to an embodiment, the connecting terminal 178 may include, for example, a HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
The haptic module 179 may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electric stimulator.
The camera module 180 may capture a still image or moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
The power management module 188 may manage power supplied to the electronic device 101. According to one embodiment, the power management module 188 may be implemented as at least 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 an embodiment, the battery 189 may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell.
The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and the external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108) and performing communication via the established communication channel. The communication module 190 may include one or more communication processors that are operable independently from the processor 120 (e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network 198 (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network 199 (e.g., a long-range communication network, such as a legacy cellular network, a 5th generation (5G) network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module 192 may identify and authenticate the electronic device 101 in a communication network, such as the first network 198 or the second network 199, using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module 196.
The wireless communication module 192 may support a 5G network, after a 4th generation (4G) network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module 192 may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module 192 may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-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., the electronic device 104), or a network system (e.g., the second network 199). According to an embodiment, the wireless communication module 192 may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC.
The antenna module 197 may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device 101. According to an embodiment, the antenna module 197 may include an antenna including a radiating element composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module 197 may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network 198 or the second network 199, may be selected, for example, by the communication module 190 (e.g., the wireless communication module 192) from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module 197.
According to certain embodiments, the antenna module 197 may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on a first surface (e.g., the bottom surface) of the PCB, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the PCB, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band.
At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)).
According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 via the server 108 coupled with the second network 199. Each of the electronic devices 102 or 104 may be a device of a same type as, or a different type, from the electronic device 101. According to an embodiment, all or some of operations to be executed at the electronic device 101 may be executed at one or more of the external electronic devices 102, 104, or 108. For example, if the electronic device 101 should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device 101, instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device 101. The electronic device 101 may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device 101 may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet-of-things (IoT) device. The server 108 may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology.
The electronic device according to various embodiments disclosed herein may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. The electronic device according to embodiments of the disclosure is not limited to those described above.
It should be appreciated that various embodiments of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or alternatives for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to designate similar or relevant elements. As used herein, each of such phrases as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C,” may include all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “a first”, “a second”, “the first”, and “the second” may be used to simply distinguish a corresponding element from another, and does not limit the elements in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with/to” or “connected with/to” another element (e.g., a second element), it means that the element may be coupled/connected with/to the other element directly (e.g., wiredly), wirelessly, or via a third element.
As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may be interchangeably used with other terms, for example, “logic,” “logic block,” “component,” or “circuit”. The “module” may be a minimum unit of a single integrated component adapted to perform one or more functions, or a part thereof. For example, according to an embodiment, the “module” may be implemented in the form of an application-specific integrated circuit (ASIC).
Various embodiments as set forth herein may be implemented as software (e.g., the program 140) including one or more instructions that are stored in a storage medium (e.g., the internal memory 136 or external memory 138) that is readable by a machine (e.g., the electronic device 101). For example, a processor (e.g., the processor 120) of the machine (e.g., the electronic device 101) may invoke at least one of the one or more instructions stored in the storage medium, and execute it. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions may include a code generated by a complier or a code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Wherein, the term “non-transitory” simply means that the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium.
According to an embodiment, a method according to various embodiments of the disclosure may be included and provided in a computer program product. The computer program product may be traded as a product between a seller and a buyer. 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 be distributed (e.g., downloaded or uploaded) online via an application store (e.g., Play Store™), or between two user devices (e.g., smart phones) directly. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturer's server, a server of the application store, or a relay server.
According to various embodiments, each element (e.g., a module or a program) of the above-described elements may include a single entity or multiple entities, and some of the multiple entities mat be separately disposed in any other element. According to various embodiments, one or more of the above-described elements may be omitted, or one or more other elements may be added. Alternatively or additionally, a plurality of elements (e.g., modules or programs) may be integrated into a single element. In such a case, according to various embodiments, the integrated element may still perform one or more functions of each of the plurality of elements in the same or similar manner as they are performed by a corresponding one of the plurality of elements before the integration. According to various embodiments, operations performed by the module, the program, or another element may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added.
According to an embodiment of the disclosure, an electronic device (e.g., the electronic device 101 in
The processor may be configured to, in case that the measured current temperature of the electronic device is equal to or less than the identified lowest configuration temperature, maintain transmission power of the communication module.
The processor may be configured to, in case that the measured current temperature of the electronic device is equal to or less than the identified lowest configuration temperature, configure the temperature coefficient to be a first value and calculate an average power limit value based on the first value and current average power for a predetermined time period.
The processor may be configured to, in case that the measured current temperature of the electronic device exceeds the identified lowest configuration temperature, and is equal to or less than the identified highest configuration temperature, calculate the temperature coefficient, based on the measured current temperature of the electronic device, the identified lowest configuration temperature, and the identified highest configuration temperature and change the transmission power of the communication module based on the calculated temperature coefficient.
The calculated temperature coefficient may be configured to have a value greater than 0 and less than 1 and to change in real time according to the current temperature of the electronic device.
The processor may be configured to calculate the temperature coefficient by dividing a result acquired by subtracting the identified lowest configuration temperature from the measured current temperature of the electronic device by a result acquired by subtracting the identified lowest configuration temperature from the identified highest configuration temperature.
The processor may be configured to calculate an average power limit value based on the temperature coefficient and current average power for a predetermined time period, calculate a power level based on the temperature coefficient and the average power limit value, and change transmission power of the communication module based on the calculated average power limit value and the power level.
The processor may be configured to, in case that the measured current temperature of the electronic device exceeds the identified highest configuration temperature, configure the temperature coefficient to be a second value and calculate an average power limit value based on the second value and current average power for a predetermined time period.
The processor may be configured to calculate a power level based on the second value and the average power limit value and change transmission power of the communication module based on the calculated average power limit value and the power level.
The processor may be configured to, in case that the average power limit value is reduced beyond a power reference value, change a communication method of the communication module.
Referring to
In operation 203, the processor 120 may identify a lowest configuration temperature and a highest configuration temperature. The lowest configuration temperature may be a lowest temperature configured in the electronic device 101, and the highest configuration temperature may be a highest temperature configured in the electronic device 101. Memory (e.g., the memory 130 in
According to an embodiment, the lowest configuration temperature and the highest configuration temperature may be configured differently for each electronic device 101. For example, the performance of the electronic device (101) may vary for each electronic device (101), and depending on the performance of the electronic device (101), the cause of increasing or decreasing the temperature of the electronic device (101) may vary when using the electronic device (101). Accordingly, electronic devices having different performances may have different lowest configuration temperatures and highest configuration temperatures. Alternatively, due to the variation between the electronic devices, the electronic devices may have different lowest configuration temperatures and highest configuration temperatures while having the same performance.
In operation 205, the processor 120 may calculate a temperature coefficient. The temperature coefficient may be calculated based on at least one of the current temperature (e.g., T) of the electronic device 101, the lowest configuration temperature (e.g., A), or the highest configuration temperature (e.g., B). The processor 120 may calculate (or compute) or configure the temperature coefficient in different manners depending on the current temperature of the electronic device 101. According to an embodiment, during the production stage of the electronic device, temperature coefficients corresponding to each temperature may be configured to values between 0 and 1 through testing and stored in the memory 130 of the electronic device 101. For example, the processor 120 may, in case that the current temperature is equal to or less than the lowest configuration temperature (e.g., the current temperature T≤the lowest configuration temperature A), configure the temperature coefficient (e.g., F) to be “0” (F=0).
Alternatively, the processor 120 may, in case that the current temperature falls between the lowest configuration temperature and the highest configuration temperature (e.g., the lowest configuration temperature A<the current temperature T≤the highest configuration temperature B), calculate the temperature coefficient F as shown in Equation 1.
For example, the processor 120 may, in case that the current temperature exceeds the lowest configuration temperature and the current temperature is equal to or less than the highest configuration temperature, calculate the temperature coefficient F as shown in Equation 1. The processor 120 may calculate the temperature coefficient by dividing a result acquired by subtracting the lowest configuration temperature from the current temperature by a result acquired by subtracting the lowest configuration temperature from the highest configuration temperature. The calculated temperature coefficient may greater than 0 and less than 1 (0<F<1).
Alternatively, the processor 120 may, in case that the current temperature exceeds the highest configuration temperature (e.g., the current temperature T>the highest configuration temperature B), configure the temperature coefficient F to be “1” (F=1).
In operation 207, the processor 120 may control an operation of a communication module (e.g., the communication module 190 in
Plimit (or New Plimit) may represent the average power limit, Real time Average Power may represent the current average power for a predetermined time period, and F may represent the temperature coefficient. Here, 3 may be a variable value. The variable value in the equation is only an example, and may be configured to a number greater or less than 3 (e.g., 2 or 4) depending on the implementation.
The average power limit value may correspond to a configuration value for limiting power used (or consumed) by the communication module 190. The current temperature of the electronic device 101 may have an inverse relationship with the average power limit value.
In case that the temperature coefficient is greater than 0 and less than 1 (0<F<1), the temperature coefficient may change in real time based on the current temperature of the electronic device 101. Since the current temperature of the electronic device 101 changes in real time, the processor 120 may calculate the average power limit value and a power level for the communication module 190 based on the current temperature. The processor 120 may calculate the power level based on the temperature coefficient and the average power limit value. The processor 120 may calculate the power level by using Equation 3 below.
Presave may represent the power level, Plimit (or New Plimit) may represent the average power limit, and F may represent the temperature coefficient. Here, 3 may be a variable value. The variable value in the equation is only an example, and may be configured to a number greater or less than 3 (e.g., 2 or 4) depending on the implementation.
The processor 120 may control the operation of the communication module 190 by lowering the average power limit value of the communication module 190 as the current temperature increases. When the average power limit value of the communication module 190 is reduced, the power used by the communication module 190 may be reduced. The power level may represent minimum power in the current transmission power of the communication module 190. As the average power limit value is adjusted in real time, the power level may be adjusted accordingly. The power level may be defined as the lowest power of the average power limit value and the sine wave. The power level may not exceed the average power limit value, with its default value being approximately 3 dB lower than the average power limit value and potentially up to 6 dB lower.
As the temperature coefficient increases from 0 to 1, the average power limit value and the power level may be reduced gradually according to the temperature coefficient. Accordingly, the current average power for a predetermined time period may be gradually reduced similar to the average power limit value and the power level. For example, the closer the temperature factor is to 1, the lower the average power limit value and the power level may be. The current transmission power of the communication module 190 may be represented as a sine wave, wherein the highest value of the sine wave may be understood as the maximum power and the lowest value of the sine wave as the lowest power. As the temperature coefficient increases from 0 to 1, a duration of operating at the maximum power among the current powers of the electronic device 101 may be adjusted. For example, as the temperature coefficient increases from 0 to 1, the duration of operating at the maximum power may become shorter.
In case that the temperature coefficient is ‘1’, the variable values in Equation 2 and Equation 3 may be calculated as fixed constants. The processor 120 may, in case that the temperature coefficient is ‘1’ according to Equation 2 and Equation 3, calculate the average power limit value and the power level. For example, in case that the temperature coefficient is ‘1’, the average power limit value may be calculated to be 3 dB lower than the current average power for a predetermined time period (e.g., New Plimit=Real-time Average Power−3*F dB). The power level may be calculated to be 3 dB lower than the average power limit value (e.g., Presave=New Plimit−3*(1+F) dB). Therefore, in case that the temperature coefficient is ‘1’, the average power limit value may be 3 dB lower than the current average power for a predetermined time period, and the power level may be 6 dB lower than the current average power over the same time period.
In case that the current temperature of the electronic device 101 exceeds the highest configuration temperature, the average power limit value may be continuously reduced. In case that the average power limit value is reduced beyond (or equal to or greater than) the power reference value, the processor 120 may change a communication mode of the communication module 190 (e.g., state transition from 2TX to 1TX). In accordance with the 5G communication method, one or more transmission signals may be transmitted simultaneously, but the processor 120 may limit the number of transmission signals based on the calculated average power limit value.
Referring to
The electronic device 101 may configure or calculate the temperature coefficient in real time, based on the current temperature of the electronic device 101 periodically or selectively measured. The electronic device 101 may control an operation of a communication module (e.g., the communication module 190 in
Referring to
The maintaining of the power of the communication module 190 indicates maintaining RF power consistent with a TAS operation. In the first graph 410, a first signal 401 may represent the maximum transmission power of the communication module 190. A second signal 403 may represent the current average power for a predetermined time period or the average power limit value of the communication module 190 measured in real time. The electronic device 101 may calculate the average power limit value based on the temperature coefficient and the current average power for a predetermined time period as shown in Equation 2. In case that the temperature coefficient is “0”, the current average power for a predetermined time period may be identical to or smaller than the average power limit value of the communication module 190 measured in real time. A third signal 405 may represent the current transmission power of the communication module 190.
Referring to
In the second graph 430, a first signal 401 may represent the maximum transmission power of the communication module 190, a second signal 431 may represent the current average power for a predetermined time period, and a third signal 433 may represent the average power limit value (Plimit) of the communication module 190. The electronic device 101 may calculate the average power limit value based on the temperature coefficient and the current average power for a predetermined time period as shown in Equation 2. A fourth signal 435 may represent the current transmission power of the communication module 190.
The electronic device 101 may calculate the power level based on the temperature coefficient and the average power limit value as shown in Equation 3 (Presave=Plimit−3*(1+F) dB). The electronic device 101 may measure the temperature coefficient in real time, calculate a new average power limit value according to the measured temperature coefficient, and determine the power level based on the calculated new average power limit value. The power level may represent the minimum power in the sine wave of the average power limit value and the current transmission power of the communication module 190. The current average power for a predetermined time period (e.g., the second signal 431) may gradually decrease in a manner similar to the average power limit value (e.g., the third signal 433) and the power level (e.g., minimum power of the fourth signal 435). According to Equation 2, the current average power for a predetermined time period may be higher than the average power limit value configured in real-time before converging to the average power limit value. In addition, according to Equation 3, the power level may not exceed the average power limit value, with its default value being approximately 3 dB lower than the average power limit value and potentially up to 3+3F dB lower.
The temperature coefficient may change in real time according to the temperature of the electronic device 101. The average power limit value (New Plimit) and the power level (New Presave) are newly calculated according to the temperature coefficient, and the duration of operating at maximum power in the sine wave may also be adjusted to satisfy same. In case that the current temperature of the electronic device 101 exceeds the lowest configuration temperature and is equal to or less than the highest configuration temperature, the electronic device 101 may compare the new average power limit value (New Plimit) with the current average power limit value (Plimit) and use a lower value.
In the second graph 430, in case that the current temperature of the electronic device 101 is equal to or less than the lowest configuration temperature, the current average power for a predetermined time period is identical to the average power limit value of the communication module 190, and thus the power level may be 3 dB (445).
The current transmission power of the communication module 190 may be represented as a sine wave, wherein the highest value of the sine wave may be understood as the maximum power and the lowest value of the sine wave as the lowest power. As the temperature coefficient increases from 0 to 1, a duration (e.g., D1, D2, or D3) of operating at the maximum power among the current powers of the electronic device 101 may be adjusted. For example, as the temperature coefficient increases from 0 to 1 (e.g., along the time (the X-axis) of the second graph 430), the duration of operating at the maximum power may become shorter. Referring to the second graph 430, it may be identified that a length of D1 is greater than that of D2, and a length of D2 is greater than that of D3.
Referring to
In the third graph 450, a first signal 401 may represent the maximum transmission power of the communication module 190, a second signal 451 may represent the current average power for a predetermined time period, and a third signal 453 may represent the average power limit value of the communication module 190 measured in real time. The electronic device 101 may calculate the average power limit value based on the temperature coefficient and the current average power for a predetermined time period as shown in Equation 2. A fourth signal 455 may represent the current transmission power of the communication module 190.
The electronic device 101 may calculate the power level based on the temperature coefficient and the average power limit value as shown in Equation 3. The power level may represent minimum power in the current transmission power of the communication module 190. The current average power for a predetermined time period (e.g., the second signal 451) may gradually decrease in a manner similar to the average power limit value (e.g., the third signal 453) and the power level (e.g., minimum power of the fourth signal 455).
When the current temperature of the electronic device 101 increases, a duration (e.g., D1, D2, or D3) of operating at the maximum power among the current powers of the electronic device 101 may be adjusted according to time. For example, along the time (the x-axis) of the third graph 450, the duration of operating at the maximum power may become shorter. Referring to a third graph 450, it may be identified that a length of D1 is greater than that of D2, and a length of D2 is greater than that of D3.
According to Equation 2, the current average power for a predetermined time period may be higher than the average power limit value by 3*F dB (e.g., when F=1, by 3*1 dB) (461). In addition, according to Equation 3, the power level may be reduced up to 6 dB (e.g., when F=1, 3*(1+1) dB) (463).
Referring to
In operation 503, the processor 120 may identify a lowest configuration temperature and a highest configuration temperature. The lowest configuration temperature may be a lowest temperature configured in the electronic device 101, and the highest configuration temperature may be a highest temperature configured in the electronic device 101. Memory (e.g., the memory 130 in
According to an embodiment, the lowest configuration temperature and the highest configuration temperature may be configured differently for each electronic device 101. For example, the performance of the electronic device 101 may vary for each electronic device 101, and depending on the performance of the electronic device 101), the cause of increasing or decreasing the temperature of the electronic device 101 may vary when using the electronic device 101. Accordingly, electronic devices having different performances may have different lowest configuration temperatures and highest configuration temperatures. Alternatively, due to the variation between the electronic devices, the electronic devices may have different lowest configuration temperatures and highest configuration temperatures while having the same performance.
In operation 505, the processor 120 may determine whether the current temperature (e.g., the measured current temperature) is equal to or less than the lowest configuration temperature. The processor 120 may, in case that the current temperature is equal to or less than the lowest configuration temperature, perform operation 509 and, in case that the current temperature exceeds the lowest configuration temperature, perform operation 507.
Although it is shown that operation 507 is performed after operation 505 in the drawing, operation 505 is performed after operation 507, or operation 505 and operation 507 may be concurrently performed.
In case that the current temperature is equal to or less than the lowest configuration temperature, in operation 509, the processor 120 may maintain the transmission power. The transmission power may represent transmission power of the communication module (e.g., the communication module 190 in
In case that the current temperature exceeds the lowest configuration temperature, in operation 507, the processor 120 may determine whether the current temperature exceeds the lowest configuration temperature and is equal to or less than the highest configuration temperature. The processor 120 may, in case that the current temperature exceeds the lowest configuration temperature and is equal to or less than the highest configuration temperature, perform operation 511 and, in case that the current temperature exceeds the highest configuration temperature, perform operation 515.
In case that the current temperature exceeds the lowest configuration temperature and is equal to or less than the highest configuration temperature, in operation 511, the processor 120 may calculate the power level and the average power limit value. The processor 120 may, in case that the current temperature falls between the lowest configuration temperature and the highest configuration temperature (e.g., the lowest configuration temperature A<the current temperature T≤the highest configuration temperature B), calculate the temperature coefficient F as shown in Equation 1. The calculated temperature coefficient may have a value between 0 and 1. The processor 120 may calculate the average power limit value of the communication module 190, based on the calculated temperature coefficient and the current average power for a predetermined time period, according to Equation 2. In addition, the processor 120 may calculate the power level, based on the calculated temperature coefficient and the average power limit value, according to Equation 3.
In operation 513, the processor 120 may change the transmission power, based on the average power limit value and the power level. For example, in case that the temperature coefficient has a value between 0 and 1, the average power limit value may be lower than the current average power for a predetermined time period by 3*F dB. The power level may be lower than the average power limit value by 3*(1+F) dB. The processor 120 may change the transmission power of the communication module 190 to gradually reduce the current average power of the communication module similar to the average power limit value and the power level.
In case that the current temperature exceeds the highest configuration temperature, in operation 515, the processor 120 may calculate the power level and the average power limit value. The processor 120 may, in case that the current temperature exceeds the highest configuration temperature (e.g., the current temperature T>the highest configuration temperature B), configure the temperature coefficient F to be “1”. The processor 120 may calculate the average power limit value based on the temperature coefficient and the current average power for a predetermined time period as shown in Equation 2. In addition, the processor 120 may calculate the power level based on the temperature coefficient and the average power limit value as shown in Equation 3.
In operation 517, the processor 120 may change the transmission power, based on the average power limit value and the power level. For example, in case that the temperature coefficient has a value of “1”, the average power limit value may be lower than the current average power for a predetermined time period by 3 dB (e.g., 3*1 (F=1)). The power level may be lower than the average power limit value by 6 dB dB (e.g., 3(1+1)(F=1)).
In operation 519, the processor 120 may change a communication method. In case that the current temperature of the electronic device 101 exceeds the highest configuration temperature, the average power limit value may be continuously reduced. In case that the average power limit value is reduced beyond (or equal to or greater than) the power reference value, the processor 120 may reduce the number of transmission signals of the communication module 190 (e.g., state transition from 2TX to 1TX). In accordance with the 5G communication method, one or more transmission signals may be transmitted simultaneously, but the processor 120 may limit the number of transmission signals based on the calculated average power limit value.
According to an embodiment of the disclosure, an operation method of an electronic device 101 may include an operation of measuring a current temperature of the electronic device using a temperature sensor (e.g., sensor module 176) of the electronic device, an operation of identifying a lowest configuration temperature and a highest configuration temperature of the electronic device from memory 130 of the electronic device, an operation of calculating a temperature coefficient, based on at least one of the measured current temperature of the electronic device, the identified lowest configuration temperature, and the identified highest configuration temperature, and an operation of controlling an operation of a communication module 190 of the electronic device, based on the calculated temperature coefficient.
The operation of controlling may include, in case that the measured current temperature of the electronic device is equal to or less than the identified lowest configuration temperature, an operation of maintaining transmission power of the communication module.
The operation of calculating may include, in case that the measured current temperature of the electronic device is equal to or less than the identified lowest configuration temperature, an operation of configuring the temperature coefficient to be a first value and an operation of calculating an average power limit value based on the first value and current average power for a predetermined time period.
The method may include, in case that the measured current temperature of the electronic device exceeds the identified lowest configuration temperature, and is equal to or less than the identified highest configuration temperature, an operation of calculating the temperature coefficient, based on the measured current temperature of the electronic device, the identified lowest configuration temperature, and the identified highest configuration temperature and an operation of changing the transmission power of the communication module based on the calculated temperature coefficient.
The calculated temperature coefficient may have a value greater than 0 and less than 1 and to be changed in real time according to the current temperature of the electronic device.
The operation of calculating may include an operation of calculating the temperature coefficient by dividing a result acquired by subtracting the identified lowest configuration temperature from the measured current temperature of the electronic device by a result acquired by subtracting the identified lowest configuration temperature from the identified highest configuration temperature.
The method may further include an operation of calculating an average power limit value based on the temperature coefficient and current average power for a predetermined time period, an operation of calculating a power level based on the temperature coefficient and the average power limit value, and an operation of changing transmission power of the communication module based on the calculated average power limit value and the power level.
The operation of calculating may include, in case that the measured current temperature of the electronic device exceeds the identified highest configuration temperature, an operation of configuring the temperature coefficient to be a second value, an operation of calculating an average power limit value based on the second value and current average power for a predetermined time period, and an operation of calculating a power level based on the second value and the average power limit value.
The operation of controlling may include an operation of changing the transmission power of the communication module, based on the calculated average power limit value and the power level.
The method may include, in case that the average power limit value is reduced beyond a power reference value, an operation of changing a communication method of the communication module.
It will be appreciated that various embodiments of the disclosure according to the claims and description in the specification can be realized in the form of hardware, software or a combination of hardware and software.
Any such software may be stored in non-transitory computer readable storage media. The non-transitory computer readable storage media store one or more computer programs (software modules), the one or more computer programs include computer-executable instructions that, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to perform a method of the disclosure.
Any such software may be stored in the form of volatile or non-volatile storage such as, for example, a storage device like read only memory (ROM), whether erasable or rewritable or not, or in the form of memory such as, for example, random access memory (RAM), memory chips, device or integrated circuits or on an optically or magnetically readable medium such as, for example, a compact disk (CD), digital versatile disc (DVD), magnetic disk or magnetic tape or the like. It will be appreciated that the storage devices and storage media are various embodiments of non-transitory machine-readable storage that are suitable for storing a computer program or computer programs comprising instructions that, when executed, implement various embodiments of the disclosure. Accordingly, various embodiments provide a program comprising code for implementing apparatus or a method as claimed in any one of the claims of this specification and a non-transitory machine-readable storage storing such a program.
While the disclosure has been shown and described with reference to various embodiments therefore, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2022-0126580 | Oct 2022 | KR | national |
| 10-2022-0146870 | Nov 2022 | KR | national |
This application is a continuation application, claiming priority under 35 U.S.C. § 365(c), of an International application No. PCT/KR2023/014307, filed on Sep. 20, 2023, which is based on and claims the benefit of a Korean patent application number 10-2022-0126580, filed on Oct. 4, 2022, in the Korean Intellectual Property Office, and of a Korean patent application number 10-2022-0146870, filed on Nov. 7, 2022, in the Korean Intellectual Property Office, the disclosure of each of which is incorporated by reference herein in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/KR2023/014307 | Sep 2023 | WO |
| Child | 19073835 | US |