KR20220043741A - Electronic device for synchronizing call waiting operation in network environment and method thereof - Google Patents

Abstract

Provided is an electronic device which comprises: a communication circuit; and a processor operatively connected to the communication circuit, wherein the processor may be configured to activate a call waiting function of the electronic device while the electronic device is connected to a first network which supports a terminal-based call waiting function, be connected to a second network which supports a network-based call waiting function by using the communication circuit, activate a call waiting function of the second network while connected to the second network by using the communication circuit, and be connected to the first network by using the communication circuit. Accordingly, call waiting functions of different networks are synchronized to make the call waiting function perform normally. Various embodiments identified through the specifications can be possible.

Description

ELECTRONIC DEVICE FOR SYNCHRONIZING CALL WAITING OPERATION IN NETWORK ENVIRONMENT AND METHOD THEREOF

Embodiments disclosed in this document relate to techniques for synchronizing a call waiting (CW) function in a network environment.

The call waiting function (or call waiting operation) is a function for receiving another incoming call during a call, and a user of a terminal can receive a new incoming call after putting the currently busy call on hold for a while.

The call waiting function may be classified into a terminal based call waiting function and a network based call waiting function. The terminal-based call waiting function may refer to an operation in which the terminal controls the call waiting function. When the call waiting function of the terminal is activated, the terminal (or the user of the terminal) can decide whether to accept or reject a call from another terminal during a call. You can automatically reject incoming calls. The network-based call waiting function may refer to an operation in which a network transmitting a call request/response between terminals controls the call waiting function. When the call waiting function of the network is activated, the network may transmit a call request from another terminal to the terminal in the call, and in this case, the terminal in the call may determine whether to accept the incoming call. On the other hand, if the call waiting function is deactivated, the network transmits an error message to the other terminal without forwarding the call request from another terminal to the calling terminal. I can not know.

The type of the call waiting function may be different depending on the type of the network to which the terminal is connected or the requirements of the network operator. For example, a circuit switching (CS) network may support a network-based call waiting function, whereas an internet protocol multimedia subsystem (IMS) network may support a terminal-based call waiting function.

If the synchronization of the call waiting function between networks supporting different call waiting functions is not synchronized, even if the call waiting function is activated in the terminal, a situation may occur in which the call waiting operation is not performed normally. For example, even if the terminal accessing the IMS network activates the call waiting function, the IMS network supporting the terminal-based call waiting function does not know whether the call waiting function of the terminal is activated. If the IMS network deactivates the call waiting function according to the setting value of another network (eg, CS network), the IMS network will not forward the call request from another terminal to the terminal, so even if the terminal activates the call waiting function During a call, it is not possible to check whether there is an incoming call from another terminal.

An electronic device according to an embodiment disclosed in this document includes a communication circuit, and a processor operatively connected to the communication circuit, wherein the processor is configured to include a first electronic device supporting a terminal-based call waiting function. While connected to the network, activate the call waiting function of the electronic device, connect to a second network supporting a network-based call waiting function using the communication circuit, and connect to the second network using the communication circuit It may be configured to activate a call waiting function of the second network in a connected state, and to access the first network using the communication circuit.

The method of the electronic device according to an embodiment disclosed in this document includes an operation of activating a call waiting function of the electronic device while the electronic device is connected to a first network supporting a terminal-based call waiting function, a network accessing a second network supporting a call waiting function based on the call waiting function, activating a call waiting function of the second network while connected to the second network, and accessing the first network there is.

The server of the network according to an embodiment disclosed in this document receives a call waiting function activation request message of the network from the electronic device in a state in which the call waiting function of the network is deactivated, and based on the received request message to activate the call waiting function of the network, synchronize a set value for activation of the call waiting function with the other network, the network supports a network-based call waiting function, and the other network supports a terminal-based call waiting function can be set to support

According to the embodiments disclosed in this document, the electronic device may normally perform the call waiting function by synchronizing the call waiting function between heterogeneous networks.

According to the embodiments disclosed in this document, the electronic device may prevent a decrease in usability by minimizing an operation for synchronizing the call waiting function.

In addition, various effects directly or indirectly identified through this document may be provided.

1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure;
2 illustrates a network environment including an electronic device according to various embodiments of the present disclosure;
3 illustrates a signal flow diagram of a terminal-based call waiting function according to various embodiments of the present disclosure;
4 illustrates a signal flow diagram of a network-based call waiting function according to various embodiments of the present disclosure;
5 illustrates a signal flow diagram for synchronizing a call waiting function in accordance with various embodiments.
6 is a flowchart illustrating an operation of an electronic device for synchronizing a call waiting function according to various embodiments of the present disclosure;
7 illustrates a user interface for activating a call waiting function in a terminal according to various embodiments of the present disclosure.
8 is a flowchart illustrating another operation of an electronic device for synchronizing a call waiting function according to various embodiments of the present disclosure;
9 illustrates a signal flow diagram for activating a call waiting function in a second network according to various embodiments.
10 illustrates a first scenario for synchronizing a call waiting function according to various embodiments.
11 illustrates a second scenario for synchronizing a call waiting function according to various embodiments.
12 illustrates a third scenario for synchronizing a call waiting function according to various embodiments.
In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of the present invention are included.

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

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 may use less power than the main processor 121 or may be set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

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

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

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

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

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

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

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

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

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

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

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

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

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

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified or authenticated.

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

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

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

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

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

2 illustrates a network environment 200 including an electronic device 230 according to various embodiments.

Referring to FIG. 2 , the electronic device 230 may access the IMS network 210 or the CS network 220 . Although only an embodiment in which the electronic device 230 accesses the IMS network 210 or the CS network 220 is illustrated in this document, the electronic device 230 may perform a call function in another network (eg, packet switching ( packet switching) network). The type of the call waiting function may be different according to the type of the network accessed by the electronic device 230 or the requirement of a network operator. For example, the IMS network 210 may support a terminal-based call waiting function in which the terminal controls a call waiting operation, and the CS network 220 may support a network-based call waiting function in which the network controls a call waiting operation. . The terminal-based call waiting function and the network-based call waiting function will be described later with reference to FIGS. 3 to 4 .

The IMS network 210 may provide multimedia services such as voice, video, and data based on an Internet protocol (IP). For example, the electronic device 230 may provide the user with an IP-based call function such as voice over LTE (VoLTE) using the IMS network 210 and a long term evolution (LTE) protocol. The IMS network 210 includes a call state control function (CSCF) 211 that performs a call control function, application servers (AS) 212, 213, and 214 that provide content, and subscriber information of the electronic device 230 and It may include a home subscriber server (HSS) 216 that manages mobility. The HSS 216 may include a database for storing the subscriber's supplementary service (SS) data. For example, the database of the HSS 216 may store a setting value related to a call waiting function of the electronic device 230 .

The CS network 220 provides a closed connection (eg, one-to-one connection) between the sender and the receiver, and terminals (or electronic devices) may perform a call function through a dedicated circuit. The CS network 220 includes a mobile switching center (MSC) 221 that provides processing and mobility management of circuit switched calls to terminals and a home location register (HLR) 222 including a database for storing subscriber information. may include For example, the database of the HLR 222 may store a setting value related to a call waiting function of the electronic device 230 .

According to embodiments, the HSS 216 of the IMS network 210 and the HLR 222 of the CS network 220 may synchronize a setting value related to a call waiting function. For example, when the CS network 220 activates the call waiting function of the CS network 220 through communication with the electronic device 230 , the IMS network 210 refers to the changed setting value of the HLR 222 and the IMS A call waiting function of the network 210 may be activated.

The electronic device 230 may perform the same or similar function as the electronic device 101 of FIG. 1 , and may include the same or similar configuration as the electronic device 101 . In this document, 'electronic device' may also be referred to as 'terminal', node, or user equipment (UE). The electronic device 230 may include, but is not limited to, a communication circuit 232 , a display 234 , a processor 236 , and a memory 238 , and the electronic device 230 includes the components shown in FIG. 1 . Some of them (eg, the subscriber identification module 196) may be further included, or some of the components (eg, the display 234) shown in FIG. 2 may be omitted.

The communication circuit 232 may be used to access a network and perform a call function of the electronic device 230 . The communication circuit 232 may be used for a communication function between the networks 210 and 220 and the electronic device 230 .

The display 234 may visually output a function for activating or deactivating the call waiting function. For example, when the display 234 is a touch screen display including a touch circuit, the electronic device 230 activates or receives a call waiting function of the electronic device 230 through a user input received on the display 234 . can be deactivated.

The processor 236 is operatively connected to the communication circuit 232 and the display 234 , and may control the overall operation of the electronic device 230 . For example, the processor 236 may provide a user interface (UI) for activating or deactivating the call waiting function through the display 234 . As another example, the processor 236 may set the call waiting function of the electronic device 230 to an activated state or an inactive state based on a user input received on the display 234 . For another example, the processor 236 may connect to the IMS network 210 or the CS network 220 using the communication circuit 232 , and may transmit/receive messages to and from the connected network. As another example, the processor 236 may determine whether to activate the call waiting function of the electronic device 230 or the CS network 220 based on information stored in the memory 238 .

The memory 238 may store policy information for determining whether synchronization of the call waiting function is required. For example, the policy information may include whether the call waiting function of the electronic device 230 is in a deactivated state, whether the call waiting function of the CS network 220 is in a deactivated state, and/or whether the electronic device 230 is the IMS network 210 ), it may indicate whether the call waiting function needs to be synchronized according to whether the call waiting function of the electronic device 230 is activated for the first time.

3 is a signal flow diagram illustrating a terminal-based call waiting function according to various embodiments of the present disclosure;

Referring to FIG. 3 , electronic devices 301-1, 301-2, and 301-3 may correspond to the electronic device 230 of FIG. 2 . The first network 302 may support a terminal-based call waiting function. For example, the first network 302 may include an IMS network.

When the first electronic device 301-1 and the third electronic device 301-3 are on a call in operation 305, the second electronic device 301-2 communicates with the first electronic device 301-1 in operation 310 A call connection may be requested from the first network 302 to perform a call. In operation 315, the first network 302 transmits a call connection request from the second electronic device 301-2 to the first electronic device 301-1 without considering whether the first electronic device 301-1 is currently on a call. can be passed on to

In operation 320 , the first electronic device 301-1 may determine whether to accept the call connection request of the second electronic device 301-2. In an embodiment, when the call waiting function of the first electronic device 301-1 is activated, the first electronic device 301-1 asks the user whether to accept the call connection request of the second electronic device 301-2. Inquiry may be made, and the call connection request may be accepted or rejected according to the user's selection. In another embodiment, when the call waiting function of the first electronic device 301-1 is deactivated, the first electronic device 301-1 may automatically reject the call connection request of the second electronic device 301-2. can Whether to activate the call waiting function of the first electronic device 301-1 may be determined by a user selection.

In operation 325 , the first electronic device 301-1 may transmit a signal indicating acceptance or rejection of the call connection to the second electronic device 301-2.

4 illustrates a signal flow diagram of a network-based call waiting function according to various embodiments.

Referring to FIG. 4 , the second network 303 may support a network-based call waiting function. For example, the second network 303 may include a CS network.

When the first electronic device 301-1 and the third electronic device 301-3 are on a call in operation 405, the second electronic device 301-2 communicates with the first electronic device 301-1 in operation 410 In order to perform a call, a call connection may be requested from the second network 303 .

In operation 415 , the second network 303 may determine whether to transmit the call connection request of the second electronic device 301 - 2 to the first electronic device 301-1 . For example, when the call waiting function of the second network 303 is activated, in operation 420 , the second network 303 transmits a call connection request from the second electronic device 301 - 2 to the first electronic device 301 - 1), the first electronic device 301-1 may determine whether to accept or reject the call connection request. For another example, when the call waiting function of the second network 303 is deactivated, in operation 425 , the second network 303 does not transmit the call connection request to the first electronic device 301-1 and the second electronic device 301-1. A call connection rejection signal (or an error message) may be transmitted to the device 301 - 2 . In this case, the first electronic device 301 - 1 cannot know the call connection request history of the second electronic device 301 - 2 unless an additional notification is received from the second network 303 .

5 illustrates a signal flow diagram for synchronizing a call waiting function in accordance with various embodiments.

Referring to FIG. 5 , an electronic device 301 may correspond to the electronic device 230 of FIG. 2 . The first network 302 may support a terminal-based call waiting function, and the second network 303 may support a network-based call waiting function.

In operation 505, the first network 302 and the second network 303 may have a call waiting function in a deactivated state. For example, when the electronic device 301 requests deactivation of the call waiting function of the second network 303 , the call waiting function of the second network 303 is deactivated, and the first network 302 performs the call waiting function of the second network 303 . ), the call waiting function of the first network 302 may be deactivated with reference to the setting value.

In operation 510 , the electronic device 301 may access the first network 302 .

In operation 515 , the electronic device 301 may activate a call waiting function of the electronic device 301 while being connected to the first network 302 . For example, the electronic device 301 may activate a call waiting function of the electronic device 301 according to a user input. Since the first network 302 supports the terminal-based call waiting function, it does not know whether the call waiting function of the electronic device 301 is activated. In this case, even when the call waiting function of the electronic device 301 is activated, the second network 302 cannot transmit a call connection request from another electronic device to the electronic device 301 .

In operation 520 , the electronic device 301 may access the second network 303 . When the second network 303 is a CS network, operation 520 may be referred to as a CS fallback.

In operation 525 , the electronic device 301 may request the second network 303 to activate the call waiting function of the second network 303 .

In operation 530 , the second network 303 may activate a call waiting function of the second network 303 in response to the received request. Although not shown in FIG. 5 , the second network 303 may transmit a response message indicating that the call waiting function is activated to the electronic device 301 .

In operation 535 , the first network 302 may synchronize a setting value related to the call waiting function with the second network 303 . For example, the first network 302 activates the call waiting function of the first network 302 with reference to a setting value stored in a database of the second network 323 (eg, the HLR 222 of FIG. 2 ). can do.

In operation 540 , the electronic device 301 may access the first network 302 . Since the call waiting function of the first network 302 is activated, the first network 302 may normally transmit a call connection request received from another electronic device to the electronic device 301 .

6 illustrates a flowchart 600 of an operation of an electronic device for synchronizing a call waiting function according to various embodiments of the present disclosure. The operations illustrated in FIG. 6 may be performed by the electronic device 301 of FIG. 5 or may be performed by a component included in the electronic device 301 (eg, the processor 236 of FIG. 2 ).

Referring to FIG. 6 , in operation 610 , the electronic device may activate the call waiting function of the electronic device while connected to the first network (eg, 302 of FIG. 5 ) supporting the terminal-based call waiting function. For example, the electronic device may activate a call waiting function of the electronic device according to a user input.

In operation 620, the electronic device may access a second network (eg, 303 of FIG. 5 ) supporting a network-based call waiting function.

In operation 630, the electronic device may activate a call waiting function of the second network while connected to the second network. For example, the electronic device may request activation of the call waiting function from the second network based on a specified protocol.

In operation 640, the electronic device may access the first network again.

7 illustrates a user interface for activating a call waiting function in a terminal according to various embodiments of the present disclosure.

Referring to FIG. 7 , the electronic device 301 may activate a call waiting function through interaction with a user while being connected to the first network 302 or the second network 303 . For example, the electronic device 301 outputs a screen 750 for activating the call waiting function through a display (eg, 234 in FIG. 2 ), and according to a user input received on the screen 750 , the call waiting function can be activated. When the electronic device 301 is connected to the first network 302 , the electronic device 301 activates the call waiting function of the electronic device 301 without additional transmission to the first network 302 , and the electronic device 301 ) is connected to the second network 303 , the electronic device 301 may request the second network 303 to activate the call waiting function.

8 is a flowchart of another operation 800 of an electronic device for synchronizing a call waiting function according to various embodiments of the present disclosure.

Referring to FIG. 8 , in operation 810 , the electronic device may activate a call waiting function of the electronic device while connected to the first network (eg, operation 610 of FIG. 6 ).

In operation 820, the electronic device may determine whether the activation of the call waiting function is performed for the first time after accessing the first network. For example, if the electronic device accessing the second network (eg, CS network) enters the LTE area and thus activates the call waiting function after switching to the first network (eg, IMS network), the electronic device enters the call waiting area It can be seen that the activation of the function is performed for the first time after accessing the first network. As another example, if the electronic device accessing the second network activates the call waiting function after accessing the first network due to rebooting, the electronic device performs the call waiting function activation for the first time after accessing the first network. can be seen as As another example, if the electronic device that does not support the first network accesses the first network by updating the first network information through OTA (over the air) and activates the call waiting function, the electronic device performs the call waiting function It can be seen that the activation of is performed for the first time after accessing the first network.

If the activation of the call waiting function is performed for the first time after accessing the first network, in operation 830 , the electronic device may activate the call waiting function of the second network (eg, operations 620 to 630 of FIG. 6 ).

If the activation of the call waiting function is not performed for the first time after accessing the first network (that is, if there is a history of activating the call waiting function after accessing the first network), the first network is already synchronized with the second network Since the call waiting function is activated through , in operation 840, the electronic device may maintain a current network connection (ie, access to the first network).

Through the above-described operation, whenever the electronic device accesses the first network, it is possible to prevent resource consumption and usability degradation due to access to the second network.

9 illustrates a signal flow diagram for activating a call waiting function in a second network according to various embodiments. The signal flow diagram shown in FIG. 9 may be an embodiment of operation 630 of FIG. 6 .

Referring to FIG. 9 , in operation 905 , the electronic device 301 may transmit request information for requesting activation of the call waiting function to the second network 303 . According to an embodiment, the request information may be transmitted through a NAS SS REGISTER message defined by the global system for mobile communications (GSM) 04.10 standard of the European telecommunications standards institute (ETSI). For example, the request information may indicate the type of SS that the electronic device 301 wants to request (eg, a call waiting function) and a request value (eg, activation).

After activating the call waiting function of the second network 303 according to the request of the electronic device 301 , the second network 303 transmits response information to the call waiting function activation request to the electronic device 301 in operation 910 . can be sent to According to an embodiment, the response information may be transmitted through a NAS SS RELEASE COMPLETE message defined by the ETSI GSM 04.10 standard. For example, the response information may indicate the type of SS to which the second network 303 responds (eg, a call waiting function) and a request result value (eg, activation).

10 to 12 illustrate scenarios for synchronizing a call waiting function according to various embodiments.

Whenever the electronic device 301 accesses the first network 302 , when the call waiting function of the second network 303 is activated, resource consumption and usability decrease due to frequent network switching. The 301 may activate the call waiting function of the second network 303 only when the first network 302 is accessed for the first time.

In an embodiment, the electronic device 301 may activate the call waiting function of the second network 303 when the second network 303 is switched to the first network 302 as shown in FIG. 10 . there is. For example, the electronic device 301 accessing the second network 303 in operation 1005 may access the first network 302 such as the IMS network by entering the LTE area in operation 1010 . After accessing the first network 302 , in operation 1015 , the electronic device 301 may activate a call waiting function of the electronic device 301 . If the electronic device 301 activates the call waiting function after switching from the second network 303 to the first network 302 , the call waiting function setting values of the first network 302 and the second network 303 are still Since it may be in a deactivated state, in operation 1020 , the electronic device 301 may activate a call waiting function of the second network 303 .

In another embodiment, when the electronic device 301 connects to the first network 302 after booting or rebooting, as shown in FIG. 11 , the electronic device 301 activates the call waiting function of the second network 303 . can do. For example, the electronic device 301 may access the first network 302 such as the IMS network by booting or rebooting in operation 1105 and entering the LTE area in operation 1110 . After accessing the first network 302 , in operation 1115 , the electronic device 301 may activate a call waiting function of the electronic device 301 . After the electronic device 301 boots or reboots, when the call waiting function is activated in the first network 302, the call waiting function setting values of the first network 302 and the second network 303 may still be in a deactivated state. Therefore, in operation 1120 , the electronic device 301 may activate the call waiting function of the second network 303 .

In another embodiment, the electronic device 301 may activate the call waiting function of the second network 303 after updating information on the first network 302 as shown in FIG. 12 . In this case, it may be assumed that the electronic device 301 is a device that does not support the first network 302 . The electronic device 301 that does not support the first network 302 may update information on the first network 302 through a patch in operation 1205 . In operation 1210 , the electronic device 301 may access the first network 302 using the updated information. After accessing the first network 302 , in operation 1215 , the electronic device 301 may activate a call waiting function of the electronic device 301 . When the electronic device 301 activates the call waiting function in the first network 302 , the call waiting function setting values of the first network 302 and the second network 303 may still be in a deactivated state, so in operation 1220 . The electronic device 301 may activate a call waiting function of the second network 303 .

An electronic device (eg, 230 in FIG. 2 ) according to an embodiment disclosed in this document includes a communication circuit (eg, 232 in FIG. 2 ) and a processor (eg, FIG. 2 ) operatively connected to the communication circuit 236), wherein the processor activates a call waiting function of the electronic device while the electronic device is connected to a first network (eg, 302 in FIG. 3 ) supporting a terminal-based call waiting function, Connect to a second network (eg, 303 in FIG. 4 ) supporting a network-based call waiting function using the communication circuit, and call the second network while connected to the second network using the communication circuit activate a standby function, and connect to the first network using the communication circuit.

According to an embodiment, the first network may include an Internet protocol multimedia subsystem (IMS) network, and the second network may include a circuit switched (CS) network.

According to an embodiment, if the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network, the processor activates the call waiting function of the fourth network, and the electronic device If the call waiting function of the electronic device is not activated for the first time after the electronic device accesses the first network, it may be configured to maintain the network connection of the electronic device to the first network.

According to an embodiment, when the network connection of the electronic device is changed from the second network to the first network, the processor is configured to perform a call waiting function of the electronic device after the electronic device accesses the first network. It may be set to determine that it is first activated.

According to an embodiment, when the electronic device connected to the second network accesses the first network by rebooting, the processor is configured to perform a call waiting function of the electronic device when the electronic device accesses the first network. Thereafter, it may be set to determine that it is first activated.

According to an embodiment, when the electronic device that does not support the first network acquires the first network information through an update and then accesses the first network, the processor may perform a call waiting function of the electronic device It may be configured to determine that the electronic device is activated for the first time after accessing the first network.

According to an embodiment, the processor transmits, through the communication circuit, a first message requesting activation of a call waiting function of the second network to the second network while connected to the second network, and It may be configured to receive a second message indicating activation of the call waiting function from a second network.

According to an embodiment, the first message may include a NAS SS REGISTER message, and the second message may include a NAS SS RELEASE COMPLETE message.

According to an embodiment of the present disclosure, further comprising a display (eg, 234 in FIG. 3 ) operatively connected to the processor, wherein the processor waits for a call of the electronic device in response to receiving a user input through the display It can be set to activate a function.

The method of the electronic device according to an embodiment disclosed in this document includes an operation of activating a call waiting function of the electronic device while the electronic device is connected to a first network supporting a terminal-based call waiting function, a network accessing a second network supporting a call waiting function based on the call waiting function, activating a call waiting function of the second network while connected to the second network, and accessing the first network there is.

According to an embodiment, the first network may include an Internet protocol multimedia subsystem (IMS) network, and the second network may include a circuit switched (CS) network.

According to an embodiment, the method includes, if the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network, activating the call waiting function of the fourth network; If the call waiting function of the electronic device is not activated for the first time after the electronic device accesses the first network, the method may further include maintaining the network connection of the electronic device to the first network.

According to an embodiment, the determining that the call waiting function of the electronic device is first activated after the electronic device accesses the first network may include determining that the network connection of the electronic device is the first in the second network. When the network is changed, the method may include determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network.

According to an embodiment, the determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network may include rebooting the electronic device connected to the second network. When accessing the first network, the method may include determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network.

According to an embodiment, the determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network may include updating the electronic device that does not support the first network through an update. When accessing the first network after acquiring the first network information, determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network.

According to an embodiment, the operation of activating the call waiting function of the second network while connected to the second network includes sending a first message requesting activation of the call waiting function of the second network to the second network. and receiving a second message indicating activation of the call waiting function from the second network.

According to an embodiment, the first message may include a NAS SS REGISTER message, and the second message may include a NAS SS RELEASE COMPLETE message.

According to an embodiment, the operation of activating the call waiting function of the electronic device may include an operation of activating the call waiting function of the electronic device in response to receiving a user input through the display of the electronic device. .

The server (eg, 303 in FIG. 4 ) of the network according to an embodiment disclosed in this document receives a call waiting function activation request message of the network from the electronic device in a state in which the call waiting function of the network is deactivated, , activates the call waiting function of the network based on the received request message, synchronizes a set value for activation of the call waiting function with the other network, the network supports a network-based call waiting function, Other networks may be configured to support a terminal-based call waiting function.

According to an embodiment, the first network may include an Internet protocol multimedia subsystem (IMS) network, and the second network may include a circuit switched (CS) network.

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

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A , B, or C" each may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively". When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

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

According to various embodiments of the present document, one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101) may be implemented as software (eg, the program 140) including For example, a processor (eg, processor 120 ) of a device (eg, electronic device 101 ) may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term refers to the case where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly between smartphones (eg: smartphones) and online. In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

Claims (20)

In an electronic device,
communication circuit; and
a processor operatively coupled to the communication circuitry, the processor comprising:
Activating a call waiting function of the electronic device while the electronic device is connected to a first network supporting a terminal-based call waiting function;
accessing a second network supporting a network-based call waiting function using the communication circuit;
activating a call waiting function of the second network while connected to the second network using the communication circuit; and
an electronic device configured to connect to the first network using the communication circuitry. The method according to claim 1,
The electronic device of claim 1, wherein the first network comprises an internet protocol multimedia subsystem (IMS) network and the second network comprises a circuit switched (CS) network. The method according to claim 1, wherein the processor,
If the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network, activating the call waiting function of the fourth network;
If the call waiting function of the electronic device is not activated for the first time after the electronic device accesses the first network, the electronic device is configured to maintain the network connection of the electronic device to the first network. The method according to claim 3, wherein the processor,
when the network connection of the electronic device is changed from the second network to the first network, the call waiting function of the electronic device is set to determine that the electronic device is activated for the first time after accessing the first network . The method according to claim 3, wherein the processor,
set to determine that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network when the electronic device connected to the second network connects to the first network by rebooting; Device. The method according to claim 3, wherein the processor,
When the electronic device that does not support the first network acquires the first network information through an update and accesses the first network, the call waiting function of the electronic device enables the electronic device to access the first network An electronic device, configured to determine that it has been activated for the first time since then. The method according to claim 1, wherein the processor is configured to:
Transmitting a first message requesting activation of a call waiting function of the second network to the second network while connected to the second network;
The electronic device is configured to receive a second message indicating activation of the call waiting function from the second network. 8. The method of claim 7,
The first message includes a NAS SS REGISTER message,
The second message includes a NAS SS RELEASE COMPLETE message, the electronic device. The method of claim 1 , further comprising: a display operatively coupled to the processor;
The processor is
The electronic device is configured to activate a call waiting function of the electronic device in response to receiving a user input through the display. A method for an electronic device, comprising:
activating a call waiting function of the electronic device while the electronic device is connected to a first network supporting a terminal-based call waiting function;
accessing a second network supporting a network-based call waiting function;
activating a call waiting function of the second network while connected to the second network; and
and connecting to the first network. 11. The method of claim 10,
wherein the first network comprises an internet protocol multimedia subsystem (IMS) network and the second network comprises a circuit switched (CS) network. 11. The method of claim 10,
activating the call waiting function of the fourth network when the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network; and
If the call waiting function of the electronic device is not activated for the first time after the electronic device accesses the first network, maintaining the network connection of the electronic device to the first network. The method of claim 12, wherein the determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network comprises:
determining that the call waiting function of the electronic device is first activated after the electronic device accesses the first network when the network connection of the electronic device is changed from the second network to the first network , Way. The method of claim 12, wherein the determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network comprises:
determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network when the electronic device that has accessed the second network reboots and accesses the first network; How to. The method of claim 12, wherein the determining that the call waiting function of the electronic device is activated for the first time after the electronic device accesses the first network comprises:
When the electronic device that does not support the first network acquires the first network information through an update and accesses the first network, the call waiting function of the electronic device enables the electronic device to access the first network and then determining that it is first activated. The method according to claim 10, wherein activating the call waiting function of the second network while connected to the second network comprises:
transmitting a first message requesting activation of a call waiting function of the second network to the second network; and
and receiving a second message indicating activation of the call waiting function from the second network. 17. The method of claim 16,
The first message includes a NAS SS REGISTER message,
The second message comprises a NAS SS RELEASE COMPLETE message. The method of claim 10, wherein activating the call waiting function of the electronic device comprises:
and activating a call waiting function of the electronic device in response to receiving a user input through a display of the electronic device. In the server of the network,
receiving a call waiting function activation request message of the network from the electronic device in a state in which the call waiting function of the network is deactivated;
Activate the call waiting function of the network based on the received request message,
Synchronizes the set value for activation of the call waiting function with the other network,
The network supports a network-based call waiting function,
The other network is configured to support a terminal-based call waiting function, the server. 20. The method of claim 19,
The first network comprises an internet protocol multimedia subsystem (IMS) network and the second network comprises a circuit switched (CS) network.

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