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WO2022191401A1 - Dispositif électronique d'invitation à une conférence téléphonique au moyen d'un message textuel et procédé de commande dudit dispositif - Google Patents

Dispositif électronique d'invitation à une conférence téléphonique au moyen d'un message textuel et procédé de commande dudit dispositif Download PDF

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Publication number
WO2022191401A1
WO2022191401A1 PCT/KR2022/000437 KR2022000437W WO2022191401A1 WO 2022191401 A1 WO2022191401 A1 WO 2022191401A1 KR 2022000437 W KR2022000437 W KR 2022000437W WO 2022191401 A1 WO2022191401 A1 WO 2022191401A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic device
message
conference call
call session
processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2022/000437
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English (en)
Korean (ko)
Inventor
안진성
유병기
조영진
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of WO2022191401A1 publication Critical patent/WO2022191401A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H04L65/1093—In-session procedures by adding participants; by removing participants
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements

Definitions

  • Various embodiments of the present disclosure relate to an electronic device for performing an invitation to a conference call using a text message and a method for controlling the same.
  • the wireless communication system may provide an IP (internet protocol)-based multimedia service (eg, voice, image, and data) to an electronic device.
  • IP IP multimedia subsystem
  • the electronic device may receive voice, video, or other media services through an IP multimedia subsystem (IMS) network.
  • IMS IP multimedia subsystem
  • RCS rich communication services, or rich communication suite
  • SMS short message service
  • An electronic device eg, user equipment, UE is configured to perform an IMS network through 4G communication (eg, a long term evolution (LTE) network) and/or 5G communication (eg, a 5G network).
  • 4G communication eg, a long term evolution (LTE) network
  • 5G communication eg, a 5G network
  • the voice and/or video service may include a voice call (eg, voice over LTE (VoLTE)) using 4G communication and/or a voice call (eg, voice over new radio (NR) (VoNR)) using 5G communication. ) may be included.
  • VoIP voice over LTE
  • NR voice over new radio
  • the electronic device may provide a conference call (eg, conference call) service with two or more external electronic devices (eg, UEs).
  • a communication session eg, a multimedia session
  • Voice and/or video telephony services eg, conference call services
  • an electronic device eg, a host device or a host UE may request the IMS server to invite a new external electronic device to an existing conference call.
  • a conference call of the electronic device (eg, a host device or a host UE) is held. ) (eg, a communication session (eg, a multimedia session) between the electronic device and the IMS server is temporarily stopped), and thereafter, the electronic device establishes a communication session (eg, a multimedia session) with a new external electronic device.
  • a new external electronic device is resumed conference An invitation to call may be required.
  • the electronic device While the conference call of the electronic device is held, the electronic device cannot receive the audio and/or video call service of the conference call, and holding and resuming the conference call of the electronic device and a communication session with the new external electronic device
  • For establishment and hold eg, a multimedia session
  • transmission and reception of a SIP (session initiation protocol)-based message is required, so power consumption for a conference call may increase.
  • SIP session initiation protocol
  • a first electronic device and a control method thereof may be provided.
  • a text message is transmitted to the second electronic device and a response message to the transmitted text message is received, and the second electronic device is transmitted to a server (eg, an IMS server).
  • a server eg, an IMS server.
  • a first electronic device for requesting an invitation from a device and a method for controlling the same may be provided.
  • the second electronic device receives a text message from the first electronic device and transmits a response message to the received text message to perform at least one procedure for subscribing to an established conference call.
  • An apparatus and a method for controlling the same may be provided.
  • a server for performing one procedure and a method for controlling the same may be provided.
  • the first electronic device includes at least one processor, and the at least one processor establishes a conference call session with a plurality of external electronic devices through an IMS server, While the established conference call session is maintained, by sending a text message to the second electronic device, receiving a response message to the text message from the second electronic device, in response to receiving the response message, to the established conference call session It may be configured to transmit a REFER message requesting to invite the second electronic device to the IMS server.
  • the second electronic device includes at least one processor, and the at least one processor is configured to provide a second electronic device while a conference call session established between the first electronic device and a plurality of external electronic devices is maintained.
  • the at least one processor is configured to provide a second electronic device while a conference call session established between the first electronic device and a plurality of external electronic devices is maintained.
  • sending a first response message to the text message to the first electronic device, and sending the first response message inviting the second electronic device to the established conference call session is configured to receive an invitation message from the IMS server for 2
  • the electronic device may join the established conference call session.
  • the server includes at least one processor, and the at least one processor is configured to include the first electronic device while a conference call session established between the first electronic device and the plurality of external electronic devices is maintained. to receive a REFER message from the REFER message, the REFER message including identification information of the second electronic device, and in response to receiving the REFER message, invite the second electronic device to an established conference call session, the server and It may be configured to establish a call session between the second electronic devices.
  • the continuity of the conference call service of the first electronic device is ensured and the second electronic device is seamlessly invited and subscribed while maintaining the previously established conference call.
  • An electronic device may be invited and joined to a conference call.
  • an invitation and subscription procedure of the second electronic device is performed based on a text message and a response message thereto, so that the second electronic device invites the second electronic device to a conference call according to the intention of the user of the second electronic device and may be subscribed.
  • an invitation and subscription procedure of the second electronic device is performed while maintaining an existing conference call, thereby holding and resuming a conference call and a communication session with the second electronic device (eg, a multimedia session)
  • Complex procedures such as establishment and hold of , can be omitted. Through this, power consumption for the invitation and subscription procedure of the second electronic device for the conference call may be reduced.
  • FIG. 1 is a block diagram illustrating an apparatus for transmitting power wirelessly and an apparatus for receiving power wirelessly, according to various embodiments of the present disclosure.
  • FIG. 1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure
  • 2A is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure
  • 2B is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure
  • FIG 3 illustrates a communication system including an IMS network, in accordance with various embodiments.
  • 4A is a signal flow diagram illustrating a method of establishing a call session between UE-1 and UE-2 according to various embodiments.
  • 4B is a signal flow diagram illustrating a method of establishing a conference call session between a first electronic device, UE-A, and UE-B, according to various embodiments of the present disclosure.
  • 4C is a signal flow diagram illustrating a method of inviting a new UE to a conference call session established with a plurality of external electronic devices according to a comparative example.
  • FIG. 5 is a signal flow diagram illustrating a method of inviting a second electronic device to a conference call session established with a plurality of external electronic devices, according to various embodiments of the present disclosure
  • 6A is a flowchart illustrating an operation of a first electronic device in a process of inviting a second electronic device to an established conference call session, according to various embodiments of the present disclosure
  • 6B is a flowchart illustrating an operation of the second electronic device in a process of inviting the second electronic device to an established conference call session, according to various embodiments of the present disclosure
  • 6C is a flowchart illustrating an operation of a server in a process of inviting a second electronic device to an established conference call session, according to various embodiments of the present disclosure
  • FIG. 7 is a flowchart illustrating a method for a first electronic device to transmit a REFER message based on a time point at which a response message is received, according to various embodiments of the present disclosure.
  • FIG. 8 is a flowchart illustrating a method for a first electronic device to transmit a REFER message based on whether an invitation from a second electronic device is accepted, according to various embodiments of the present disclosure
  • 9A is a diagram for describing a method of receiving a user input for inviting a second electronic device through a touch screen of a first electronic device, according to various embodiments of the present disclosure
  • 9B is a diagram for describing a method of receiving a user input regarding whether to accept an invitation from a first electronic device through a touch screen of a second electronic device, according to various embodiments of the present disclosure
  • FIG. 9C is a diagram for describing a screen displayed through a display of a first electronic device when a second electronic device does not accept an invitation to a conference call session, according to various embodiments of the present disclosure
  • 9D is a diagram for describing a screen displayed through a touch screen of a first electronic device when a second electronic device does not respond to an invitation to a conference call session, according to various embodiments of the present disclosure
  • 10A is a flowchart illustrating a method of determining, by a first electronic device, whether to transmit a REFER message, based on a character string included in a response message, according to various embodiments of the present disclosure
  • FIG. 10B is a diagram for describing a method in which a second electronic device notifies whether an invitation is accepted to a first electronic device through a response message, according to various embodiments of the present disclosure
  • 11A is a flowchart illustrating a method for a first electronic device to determine whether to transmit a REFER message based on a time point when a response message is received from a second electronic device, according to various embodiments of the present disclosure
  • 11B illustrates an example of a screen displayed on the second electronic device when the second electronic device transmits a response message while a conference call session is not maintained, according to various embodiments of the present disclosure.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.
  • the electronic device 101 communicates with the electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and 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 .
  • 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 .
  • at least one of these components eg, the connection terminal 178
  • some of these components 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 , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • software eg, a program 140
  • 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 .
  • the volatile memory 132 may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • the processor 120 is a 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).
  • a main processor 121 eg, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit
  • NPU neural processing unit
  • an image signal processor e.g., a sensor hub processor, or a communication processor.
  • the secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when 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.
  • the coprocessor 123 eg, an image signal processor or a communication processor
  • may be implemented as part of another functionally related component eg, the camera module 180 or the communication module 190. have.
  • the auxiliary processor 123 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 the artificial intelligence model 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 (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 .
  • 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 by 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 can be used to receive incoming calls. 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.
  • 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 ) directly or wirelessly connected to the electronic device 101 .
  • 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, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
  • 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 specified 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 ).
  • 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 ).
  • 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.
  • 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 .
  • the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101 .
  • 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.
  • 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 local area network (LAN) communication module, or a power line communication module).
  • 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
  • GNSS global navigation satellite system
  • wired communication module 194 eg, : It may include a local area network (LAN) 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).
  • a first network 198 eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
  • 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).
  • a telecommunication network
  • the wireless communication module 192 uses 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 .
  • subscriber information eg, International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • 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)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low-latency
  • the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
  • a high frequency band eg, mmWave band
  • the wireless communication module 192 uses various techniques 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 defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ).
  • 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) can be supported.
  • a peak data rate eg, 20 Gbps or more
  • loss coverage eg, 164 dB or less
  • U-plane latency for realizing URLLC
  • the antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device).
  • 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.
  • 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.
  • other components eg, a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • 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.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • 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 .
  • all or part of the operations performed by the electronic device 101 may be executed by one or more external electronic devices 102 , 104 , or 108 .
  • the electronic device 101 may perform the function or service itself instead of executing the function or service itself.
  • 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.
  • 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.
  • 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 neural networks.
  • 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.
  • FIG. 2A is a block diagram 200a of an electronic device 101 for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure.
  • 2B is a block diagram 200b of an electronic device 101 for supporting legacy network communication and 5G network communication, according to various embodiments.
  • the electronic device 101 includes a first communication processor 212 , a second communication processor 214 , a first radio frequency integrated circuit (RFIC) 222 , a second RFIC 224 , and a second communication processor 214 .
  • RFIC radio frequency integrated circuit
  • the electronic device 101 may further include a processor 120 and a memory 130 .
  • the network 199 may include a first cellular network 292 and a second cellular network 294 .
  • the electronic device 101 may further include at least one component among the components illustrated in FIG. 1
  • the network 199 may further include at least one other network.
  • a first communication processor 212 , a second communication processor 214 , a first RFIC 222 , a second RFIC 224 , a fourth RFIC 228 , a first RFFE 232 , and the second RFFE 234 may form at least a part of the wireless communication module 192 .
  • the fourth RFIC 228 may be omitted or may be included as a part of the third RFIC 226 .
  • the first communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with the first cellular network 292 and legacy network communication through the established communication channel.
  • the first cellular network 292 may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network.
  • the second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second cellular network 294 , and 5G through the established communication channel It can support network communication.
  • the second cellular network 294 may be a 5G network defined by 3GPP.
  • the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second cellular network 294 .
  • 5G network communication through the establishment of a communication channel and the established communication channel can be supported.
  • the first communication processor 212 may transmit/receive data to and from the second communication processor 214 .
  • data that has been classified to be transmitted over the second cellular network 294 may be changed to be transmitted over the first cellular network 292 .
  • the first communication processor 212 may receive transmission data from the second communication processor 214 .
  • the first communication processor 212 may transmit and receive data through the second communication processor 214 and the interprocessor interface 213 .
  • the interprocessor interface 213 may be implemented as, for example, a universal asynchronous receiver/transmitter (UART) (eg, high speed-UART (HS-UART) or peripheral component interconnect bus express (PCIe) interface), but the The type is not limited, or the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using, for example, a shared memory.
  • the first communication processor 212 may transmit/receive various information to and from the second communication processor 214 , such as sensing information, information on output strength, and resource block (RB) allocation information.
  • RB resource block
  • the first communication processor 212 may not be directly connected to the second communication processor 214 .
  • the first communication processor 212 may transmit and receive data through the second communication processor 214 and the processor 120 (eg, an application processor).
  • the first communication processor 212 and the second communication processor 214 may transmit and receive data with the processor 120 (eg, an application processor, AP) through an HS-UART interface or a PCIe interface, There are no restrictions on the type of interface.
  • the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using a shared memory with the processor 120 (eg, an application processor, AP). can
  • the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or in a single package.
  • the first communication processor 212 or the second communication processor 214 may include the processor 120 (eg, the main processor 121 ), the auxiliary processor 123 , or the communication module 190 . and may be formed on a single chip or within a single package.
  • the unified communication processor 260 may support both functions for communication with the first cellular network 292 and the second cellular network 294 .
  • the first RFIC 222 when transmitting, transmits a baseband signal generated by the first communication processor 212 from about 700 MHz to about 700 MHz used for the first cellular network 292 (eg, a legacy network). It can be converted to a radio frequency (RF) signal of 3 GHz.
  • RF radio frequency
  • an RF signal is obtained from a first cellular network 292 (eg, a legacy network) via an antenna (eg, a first antenna module 242), and an RFFE (eg, a first RFFE 232) It can be preprocessed through
  • the first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212 .
  • the second RFIC 224 when transmitting, uses the baseband signal generated by the first communication processor 212 or the second communication processor 214 to the second cellular network 294 (eg, a 5G network). It can be converted into an RF signal (hereinafter, 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less).
  • 5G Sub6 RF signal RF signal
  • a 5G Sub6 RF signal is obtained from a second cellular network 294 (eg, 5G network) via an antenna (eg, second antenna module 244 ), and an RFFE (eg, second RFFE 234 ) ) can be preprocessed.
  • the second RFIC 224 may convert the pre-processed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 212 or the second communication processor 214 .
  • the third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second cellular network 294 (eg, 5G network). of RF signal (hereinafter referred to as 5G Above6 RF signal).
  • a 5G Above6 RF signal may be obtained from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and pre-processed via a third RFFE 236 .
  • the third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214 .
  • the third RFFE 236 may be formed as part of the third RFIC 226 .
  • the electronic device 101 may include the fourth RFIC 228 separately from or as at least a part of the third RFIC 226 .
  • the fourth RFIC 228 transmits the baseband signal generated by the second communication processor 214 to an RF signal (hereinafter, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion to , the IF signal may be transmitted to the third RFIC 226 .
  • the third RFIC 226 may convert the IF signal into a 5G Above6 RF signal.
  • a 5G Above6 RF signal may be received from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and converted to an IF signal by a third RFIC 226 .
  • the fourth RFIC 228 may convert the IF signal into a baseband signal for processing by the second communication processor 214 .
  • the first RFIC 222 and the second RFIC 224 may be implemented as at least a part of a single chip or a single package.
  • the second RFIC 224 may be omitted.
  • the first RFIC 222 is connected to the first RFFE 232 and the second RFFE 234 so that the first RFIC 222 transmits a baseband signal to the first RFFE 232 and/or the second RFFE.
  • the converted signal may be transmitted to one of the first RFFE 232 and the second RFFE 234 .
  • the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least a part of a single package.
  • at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or may be combined with another antenna module to process RF signals of a plurality of corresponding bands.
  • the third RFIC 226 and the antenna 248 may be disposed on the same substrate to form the third antenna module 246 .
  • the wireless communication module 192 or the processor 120 may be disposed on the first substrate (eg, main PCB).
  • the third RFIC 226 is located in a partial area (eg, the bottom surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is located in another partial region (eg, the top surface). is disposed, the third antenna module 246 may be formed.
  • a high-frequency band eg, about 6 GHz to about 60 GHz
  • the electronic device 101 may improve the quality or speed of communication with the second cellular network 294 (eg, a 5G network).
  • the antenna 248 may be formed as an antenna array including a plurality of antenna elements that may be used for beamforming.
  • the third RFIC 226 may include, for example, as a part of the third RFFE 236 , a plurality of phase shifters 238 corresponding to a plurality of antenna elements.
  • the plurality of phase shifters 238 transmit the 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, a base station (BS) of a 5G network) through an antenna element corresponding to each. You can change the phase.
  • BS base station
  • the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside through a corresponding antenna element to the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.
  • the second cellular network 294 may be operated independently (eg, Stand-Alone (SA)) or connected to the first cellular network 292 (eg, legacy network).
  • SA Stand-Alone
  • NSA Non-Stand Alone
  • the 5G network may have only an access network (eg, 5G radio access network (RAN) or next generation RAN (NG RAN)), and may not have a core network (eg, next generation core (NGC)).
  • the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network.
  • EPC evolved packed core
  • Protocol information for communication with a legacy network eg, LTE protocol information
  • protocol information for communication with a 5G network eg, NR protocol information
  • other components eg, the processor 120, may be accessed by the first communication processor 212 , and/or the second communication processor 214 .
  • FIG 3 illustrates a communication system including an IMS network, in accordance with various embodiments.
  • the electronic device 101 may each or simultaneously access the first communication network 310 (eg, 5G NR communication network) or the second communication network 320 (eg, 4G LTE communication network). have. Also, the electronic device 101 may access the IMS network of the IMS server 330 through the first communication network 310 or may access the IMS network of the IMS server 330 through the second communication network 320 . .
  • the first communication network 310 eg, 5G NR communication network
  • the second communication network 320 eg, 4G LTE communication network
  • the electronic device 101 may provide a communication service (eg, a voice call or a voice call service) with another electronic device.
  • the communication system may include a plurality of access networks (eg, the first communication network 310 or the second communication network 320 ) provided by a plurality of communication operators, respectively.
  • the electronic device 101 may modulate or demodulate a signal for communicating with at least one communication network (eg, the first communication network 310 ) through the communication module 190 .
  • the electronic device 101 may be connected to at least one telecommunications network (eg, a communication network) through wireless or wired communication to communicate with other electronic devices.
  • the electronic device 101 may control communication with at least one communication network or at least one IP service network.
  • the electronic device 101 may include hardware including at least one processor and software for controlling the same.
  • the electronic device 101 may receive a communication service through the first communication network 310 and the second communication network 320 or the IMS network.
  • the first communication network 310 and the second communication network 320 may include a communication network operated by a communication service provider.
  • the first communication network 310 and the second communication network 320 may include at least one of an NR network, an LTE network, or a mobile world interoperability for microwave access (Wimax) network. Alternatively, it may include a code division multiple access (CDMA) 1x network, a wideband code division multiple access (WCDMA) network, or a global system for mobile communications (GSM) network.
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GSM global system for mobile communications
  • the first communication network 310 and the second communication network 320 may provide a communication service to the electronic device 101 or another electronic device through a wired or wireless interface.
  • the first communication network 310 and the second communication network 320 may be heterogeneous communication networks operated by the same communication operator but using different types of protocols.
  • the first communication network 310 may be an NR communication network operated by a specific communication operator
  • the second communication network 320 may be an LTE communication network operated by the specific communication operator.
  • the first communication network 310 and the second communication network 320 are operated by different communication operators, respectively, and may be communication networks using different types of protocols.
  • the first communication network 310 may be an NR communication network operated by a first communication operator
  • the second communication network 320 may be an LTE communication network operated by a second communication operator.
  • the IMS network may include an IP-based service network operated by a communication service provider (or service provider).
  • the IMS server 330 may provide an IP-based communication service (eg, a multimedia service) to the electronic device 101 and other electronic devices.
  • the IMS network may include an IMS network operated by a communication service provider.
  • the IMS network may include an IP service network operated by another service provider related to (eg, entered into an agreement with) a communication service provider of the IMS network.
  • the electronic device 101 may attach to a plurality of communication networks operated by different communication operators or may register the electronic device 101 in the plurality of communication networks.
  • the electronic device 101 may obtain a plurality of pieces of subscriber information respectively corresponding to a plurality of communication networks.
  • the electronic device 101 may obtain a plurality of SIM information by using a plurality of subscriber identification module (SIM) card slots.
  • SIM subscriber identification module
  • the electronic device 101 may include a first SIM card corresponding to the first communication service provider and a second SIM card corresponding to the second communication service provider.
  • the communication module 190 of the electronic device 101 may access the first communication network 310 of the first communication operator based on information (or first subscriber information) of the first SIM card.
  • the communication module 190 may access the second communication network 320 of the second communication service provider based on the information of the second SIM card (or the second subscriber information).
  • the electronic device 101 when the electronic device 101 supports a plurality of wireless connections, the electronic device 101 may concurrently access the first communication network 310 and the second communication network 320 . . Alternatively, when the electronic device 101 does not support a plurality of wireless connections at the same time, the electronic device 101 may access one of the first communication network 310 and the second communication network 320 . . According to an embodiment, even when the electronic device 101 includes a plurality of subscriber information and supports a plurality of wireless connections, in an area in which the electronic device 101 is located, the first communication network 310 of the first communication operator ) is the service, the communication module 190 may access the first communication network 310 to receive the communication service.
  • each of the plurality of pieces of subscriber information may include, for example, a plurality of pieces of identification information of different types used in heterogeneous communication networks of the same operator.
  • Each of the subscriber information is, for example, one of international mobile subscriber identity (IMSI), which is identification information corresponding to the LTE network of a specific communication service provider, or public user identity (PUI), which is identification information corresponding to the IMS network of the specific communication service provider. Or it may include a combination thereof.
  • the plurality of subscriber information is stored in one SIM card, stored in an internal storage space (eg, memory) of the electronic device 101 , or another electronic device that can be connected to the electronic device 101 (eg, server) may be stored.
  • the electronic device 101 may acquire a plurality of subscriber information from an internal storage space or from the outside, and register subscriber information corresponding to each IP service network (eg, IMS network).
  • IP service network eg, IMS network
  • the communication module 190 obtains (or allocates) a first address (eg, an IP address) through the first communication network 310 . received), and may be registered with the IMS server 330 (eg, IMS network) based on the first address.
  • the communication module 190 connects to any one of the first communication network 310 and the second communication network 320 .
  • An address may be acquired (or assigned) through the .IP and registered in the IMS server 330 (eg, an IMS network) based on the address.
  • the communication module 190 may obtain an address through the first communication network 310 and register it with the IMS server 330 (eg, IMS network) based on the address.
  • the second communication network 320 may include entities such as an evolved node B (eNB), a mobility management entity (MME), and a gateway.
  • the eNB may be a device (eg, a base station) that provides a wireless interface (or wireless connection) between at least one user equipment and an LTE network.
  • the eNB may control a wireless connection of the electronic device 101 and may control a radio resource (eg, frequency) allocated to the wireless connection.
  • the MME may manage a connection to at least one electronic device 101 connected through the eNB.
  • the MME may provide authentication for the electronic device 101 when the electronic device 101 accesses an LTE communication network, track or manage mobility of the electronic device 101, and provide a communication service.
  • the gateway may include a serving gateway (S-GW) and a public data network gateway (PGW).
  • S-GW serving gateway
  • PGW public data network gateway
  • the gateway may route packets communicating with LTE communication networks and external communication networks (eg Internet or IMS networks), provide a firewall, or assign an address (eg IP address) to at least one user device. can do.
  • the LTE communication network includes a plurality of entities, for example, one or more of an evolved node B (eNB), a mobility management entity (MME), or a gateway. Can include dogs.
  • eNB evolved node B
  • MME mobility management entity
  • Can include dogs.
  • the IMS server 330 may include entities such as a call session control function (CSCF) and an application server (AS).
  • the IMS network is an IP service network operated by the first communication service provider, and may provide IP-based multimedia services to subscribers.
  • the CSCF may include, for example, at least one of a proxy call session control function (P-CSCF), a serving call session control function (S-CSCF), and an interrogating call session control function (I-CSCF).
  • P-CSCF proxy call session control function
  • S-CSCF serving call session control function
  • I-CSCF interrogating call session control function
  • the CSCF may register the electronic device 101 with the IMS server 330 (eg, the IMS network) in response to the registration request of the electronic device 101 .
  • the CSCF may provide a function related to a call connection of the IMS server 330 (eg, an IMS network).
  • the AS is a device for supporting a service provided through the IMS server 330 (eg, an IMS network), and may include, for example, a telephony application server (TAS) or a voice call continuity server (VCC Server).
  • TAS may provide a multimedia additional service (eg, a caller ID or ringback tone) to the at least one electronic device 101 .
  • the VCC Server may provide seamless handover between heterogeneous networks (eg, CDMA network and IMS network) to at least one user device.
  • the electronic device 101 may access the first communication network 310 or the second communication network 320 .
  • the electronic device 101 may request access (eg, attach) to the first communication network 310 or the second communication network 320 through a wireless connection with the gNB or eNB.
  • the MME may perform an authentication procedure associated with the electronic device 101 , and request a registration (eg, create) associated with the electronic device 101 to the gateway session request) can be sent.
  • the gateway may allocate at least one address (eg, an IP address) to the electronic device 101 in response to the registration request.
  • the second communication network 320 may provide a connection between the electronic device 101 and an external communication network (eg, internet or IMS network) based on at least one address assigned to the electronic device 101 .
  • an external communication network eg, internet or IMS network
  • the electronic device 101 registers the electronic device 101 with the IMS server 330 (eg, an IMS network) through the first communication network 310 or the second communication network 320 .
  • the electronic device 101 may transmit a registration request (eg, attach) to the second communication network 320 (eg, P-GW) corresponding to the first subscriber information.
  • the second communication network 320 may allocate at least one address (eg, an IP address) to the electronic device 101 in response to the registration request.
  • the electronic device 101 may transmit a registration request (eg, session initiation protocol (SIP) register) to the IMS server 330 (eg, IMS network) using the at least one address.
  • the second communication network 320 and the IMS network may be operated by different communication operators, respectively.
  • the electronic device 101 obtains at least one piece of address information (eg, an IP address or an identifier for the electronic device) from the communication networks, and through the communication network, A registration request (eg, SIP register) for the IMS server 330 (eg, IMS network) including address information may be transmitted to the IMS server 330 .
  • a registration request eg, SIP register
  • the IMS server 330 may register the electronic device 101 with the IMS server 330 (eg, an IMS network) and provide a service.
  • FIG. 4A illustrates establishing a call session (eg, a one-to-one call session or a one-to-one multimedia session) between user equipment (UE)-1 401 and UE-2 403, according to various embodiments. It is a signal flow diagram 400a for explaining the method. Since at least a part of the call session establishment procedure shown in FIG. 4A is described in, for example, 3GPP standard document 24.228, the call session establishment procedure will be briefly described below.
  • each of UE-1 401 and UE-2 403 may include at least some of the same hardware components as the electronic device 101 of FIGS. 1 , 2A and/or 2B .
  • UE-1 401 and UE-2 403 each have a processor 120 and a wireless communication module 192 (eg, a first communication processor 212 and/or a second communication processor 214 ). )) may be included.
  • the operation of the UE-1 401 and/or the UE-2 403 is performed by at least one processor (eg, the processor 120 , the first It may mean that the communication processor 212 and/or the second communication processor 214 perform a specified operation or control another hardware component to perform a specified operation.
  • each of the first electronic device 423 and the second electronic device 465 includes a processor 120 and a wireless communication module 192 (eg, a first communication processor ( 212 ) and/or second communication processor 214 ), and the operation of the first electronic device 423 and/or the second electronic device 465 includes at least one processor (eg, the processor 120 ). ), the first communication processor 212 and/or the second communication processor 214) may refer to performing a specified operation or controlling other hardware components to perform a specified operation.
  • the server 405 may include the IMS server 330 shown in FIG. 3 .
  • the server 405 may provide a voice and/or video call service (eg, a one-to-one call service and/or a conference call service) and/or a service based on an RCS protocol (eg, an RCS messaging service). ) can be provided.
  • the server 405 may include two or more servers.
  • the server 405 may include a first server for providing a voice and/or video call service (eg, a one-to-one call service and/or a conference call service) and a service based on the RCS protocol (eg, an RCS messaging service). ) may include a second server for providing.
  • the server 405 may include a processor 120 and a wireless communication module 192 (eg, a first communication processor 212 and/or a second communication processor 214 ).
  • the operation of the server 405, at least one processor (eg, the processor 120, the first communication processor 212 and / or the second communication processor 214) to perform a specified operation, or other hardware components may mean controlling to perform a specified operation.
  • UE-1 401 sends an INVITE message 407 to UE-2 403 via server 405
  • UE-2 403 sends INVITE message 407 via server 405
  • Message 407 may be received from UE-1 401 .
  • the INVITE message 407 may indicate establishment (eg, establishment) of a call session (eg, a one-to-one call session or a one-to-one multimedia session) between UE-1 401 and UE-2 403 . It may include a requesting SIP-based message.
  • the UE-2 403 transmits the SIP-based 100 Trying message 409 to the UE-1 401 through the server 405 in response to the received INVITE message 407, UE-1 401 may receive 100 Trying message 409 from UE-2 403 via server 405 .
  • the UE-2 403 transmits a SIP-based 183 Session in progress message 411 to the UE-1 401 through the server 405, and the UE-1 401 is the server Through (405) 183 Session in progress message (411) may be received from the UE-2 (403).
  • the 183 Session in progress message 411 may include information on media stream capabilities of the UE-2 403 .
  • the UE-1 401 transmits the SIP-based PRACK message 413 to the UE-2 403 via the server 405 , and the UE-2 403 sends the PRACK message 413 .
  • the PRACK message 413 may include information on codecs to be used for media flows through a call session to be established.
  • the UE-2 403 sends a 200 OK message 415 to the UE-1 401 via the server 405 in response to the received PRACK message 413 , and the UE-1 401 may receive a 200 OK message 415 from UE-2 403 via server 405 .
  • the 200 OK message 415 may include a SIP-based message indicating that the PRACK message 413 sent by the UE-1 401 has been received by the UE-2 403 .
  • the UE-2 403 transmits the SIP-based 180 Ringing message 417 to the UE-1 401 through the server 405 , and the UE-1 401 is the server 405 . ) through the 180 Ringing message 417 may be received from the UE-2 (403).
  • UE-2 403 sends a 200 OK message 419 to UE-1 401 via server 405 in response to the received INVITE message 407 and UE- 1 401 may receive a 200 OK message 419 from UE-2 403 via server 405 .
  • a call session (eg, one-to-one) between the UE-1 401 and the UE-2 403 through the transmission/reception procedure from the INVITE message 407 to the 200 OK message 419 described above.
  • call session may be established (eg, a normal call setup procedure is completed), and through the established call session, voice and / or a video call service (eg, one-to-one call service) may be provided.
  • the UE-1 401 transmits an UPDATE message (not shown) to the UE-2 403 through the server 405, and the UE-2 403 sends the server 405 an UPDATE message (not shown). time) and may transmit a 200 OK message indicating that an UPDATE message (not shown) has been received to the UE-1 401 through the server 405 .
  • FIG. 4B illustrates a method of establishing a conference call session (eg, a multi-party multimedia session) between the first electronic device 423 , UE-A 425 , and UE-B 427 , according to various embodiments. It is a signal flow diagram 400b for explanation.
  • the procedure for establishing a conference call session shown in FIG. 4B is, for example, at least partially described in 3GPP standard document 24.605. Hereinafter, a procedure for establishing a conference call session will be briefly described.
  • the first electronic device 423 includes a processor 120 and a wireless communication module 192 (eg, a first communication processor 212 and/or a second communication processor 214 ). At least one processor (eg, the processor 120 , the first communication processor 212 , and/or the second communication processor 214 ) performs a specified operation for the operation of the first electronic device 423 . Alternatively, it may mean controlling other hardware components to perform a specified operation.
  • a call session 429 (eg, a one-to-one call session or a one-to-one multimedia session) may be established between the first electronic device 423 and the UE-A 425 .
  • the general call setup procedure eg, the procedure of the signal flow diagram 400a shown in FIG. 4A
  • the first electronic device ( 423 ) and a call session 429 between UE-A 425 may be established.
  • the first electronic device 423 configures the server 405 to establish a conference call session between the first electronic device 423 , the UE-A 425 and the UE-B 427 .
  • the INVITE message 431 may be transmitted to the UE-A 425 , and the UE-B 427 may receive the INVITE message 431 from the first electronic device 423 through the server 405 .
  • the INVITE message 431 is based on a SIP requesting hold (eg, temporary stop) of the call session 429 between the previously established first electronic device 423 and the UE-A 425 . may contain messages from
  • the UE-A 425 transmits a 200 OK message 433 to the first electronic device 423 via the server 405 in response to the received INVITE message 431 , and
  • the electronic device 423 may receive a 200 OK message 433 from the UE-A 425 through the server 405 .
  • the 200 OK message 433 may include a SIP-based message indicating that the INVITE message 431 transmitted by the first electronic device 423 has been received by the UE-A 425 .
  • a call session 429 between the first electronic device 423 and the UE-A 425 (eg: A multimedia session between the first electronic device 423 and the server 405 and/or a multimedia session between the server 405 and the UE-A 425) may be held.
  • a call session 435 between the first electronic device 423 and the UE-B 427 may be established. For example, while the previously established call session 429 between the first electronic device 423 and the UE-A 425 is held, a general call between the first electronic device 423 and the UE-B 427 is held. A call session 435 between the first electronic device 423 and the UE-B 427 may be established based on the performing of the setup procedure (eg, the procedure of the signal flow diagram 400a illustrated in FIG. 4A ).
  • the first electronic device 423 is configured to establish a conference call session between the first electronic device 423 , the UE-A 425 and the UE-B 427 through the server 405 .
  • the INVITE message 437 may be transmitted to the UE-B 429 , and the UE-B 427 may receive the INVITE message 437 from the first electronic device 423 through the server 405 .
  • the INVITE message 437 is a SIP requesting hold (eg, temporarily stop) of the call session 435 between the previously established first electronic device 423 and the UE-B 427 . It may include a message based on it.
  • the UE-B 427 transmits a 200 OK message 439 to the first electronic device 423 via the server 405 in response to the received INVITE message 437 , and
  • the electronic device 423 may receive a 200 OK message 439 from the UE-B 427 through the server 405 .
  • the 200 OK message 439 may include a SIP-based message indicating that the INVITE message 437 transmitted by the first electronic device 423 has been received by the UE-B 427 .
  • a call session 435 between the first electronic device 423 and the UE-B 427 (eg: A multimedia session between the first electronic device 423 and the server 405 , and/or a multimedia session between the server 405 and the UE-B 427 ) may be held.
  • the first electronic device 423 provides a call session 429 between the first electronic device 423 and the UE-A 425 and the first electronic device 423 and the UE-B ( After the call session 435 between 427 is held, an INVITE message ( 441) can be transmitted.
  • the INVITE message 441 may include a SIP-based message requesting the server 405 to open (eg, setup) a conference call session.
  • the server 405 in response to receiving the INVITE message 411, allocates a CS (conference session) resource (resource) for the conference call (allocate) 443, and 200 OK message ( 445 may be transmitted to the first electronic device 423 .
  • CS conference session resource
  • resource resource
  • 200 OK message 445
  • the first electronic device 423 confirms that the CS resource for the conference call has been allocated, based on receiving the 200 OK message 445 , and connects the UE-A 425 to the established conference call session. ), it may transmit a SIP-based REFER message 447 (eg, a REFER request) to the server 405 .
  • the REFER message 447 may include a From header including identification information (eg, SIP address information and/or tag number) of the host device (eg, the first electronic device 423 ). header)), identification information (eg, To header including SIP address information) and method information (eg, Refer-To header) of a device to be invited (eg, UE-A (425)) may be included.
  • the server 405 in response to receiving the REFER message 447 , sends a first SIP-based 202 Accepted message 449 indicating that it accepts the received REFER message 447 .
  • An INVITE message 451 for transmitting to the electronic device 423 and inviting the UE-A 425 to the established conference call session may be transmitted to the UE-A 425 .
  • the INVITE message 451 includes identification information (eg, a From header including SIP address information and/or a tag number) of a host device (eg, the first electronic device 423), and a device to be invited (eg, a From header).
  • UE-A (425) identification information (eg, To header including SIP address information) and conference call session identification information (eg, Contact header including SIP address information and/or isfocus feature).
  • the UE-A 425 in response to receiving the INVITE message 451 , transmits to the server 405 a SIP-based 200 OK message 453 indicating reception of the INVITE message 451 .
  • the multimedia session between the server 405 and the UE-A 425 is resumed (resume) and the UE-A ( 425 may be subscribed (eg, UE-A 425 may join an established conference call session).
  • the UE-A 425 being oversubscribed (eg, participating in) for an established conference call session means that the first electronic device 423 and the UE-A 423 A conference call session involving A 425 may be described as being established.
  • the first electronic device 423 SIP to the server 405 to invite the UE-B 427 to the established conference call session.
  • REFER message 455 eg, REFER request.
  • the REFER message 455 includes identification information (eg, a From header including SIP address information and/or tag number) of a host device (eg, the first electronic device 423), and a device to be invited (eg, a From header).
  • identification information eg, a From header including SIP address information and/or tag number
  • UE-B (427) identification information eg, To header including SIP address information
  • method information eg, Refer-To header
  • the server 405 in response to receiving the REFER message 455, sends a SIP-based 202 Accepted message 457 indicating accepting the received REFER message 455 to the first electronic device ( 423 ) and may send an INVITE message 459 to UE-B 427 to invite UE-B 427 to the established conference call session.
  • the INVITE message 459 may include identification information (eg, a From header including SIP address information and/or a tag number) of the host device (eg, the first electronic device 423 ), and a device to be invited (eg, a From header).
  • UE-B (427)) identification information eg, To header including SIP address information
  • conference call session identification information eg, Contact header including SIP address information and/or isfocus feature.
  • the UE-B 427 in response to receiving the INVITE message 459 , transmits to the server 405 a SIP-based 200 OK message 461 indicating receipt of the INVITE message 459 .
  • the multimedia session between the server 405 and the UE-B 427 is resumed, and the UE-B 427 is in the established conference call session.
  • may be subscribed eg, UE-B 427 may join an established conference call session).
  • joining (eg, participating in) the UE-B 427 for an established conference call session includes the first electronic device 423 and the UE-B A conference call session including 427 may be described as being established.
  • a conference call session 463 including 427 may be established, and through the established conference call session 463 , the first electronic device 423 , UE-A 425 and UE-B 427 .
  • a voice and/or video call service (eg, a conference call service) may be provided.
  • the server 405 transmits the 202 Accepted messages 449 and 457 to the first electronic device 423, and then sends a NOTIFY message (eg, NOTIFY request) to the first electronic device ( 423) can be transmitted.
  • the NOTIFY message is information about the progress of processing based on the accepted REFER messages 447 and 455 (eg, a device to be invited (eg, UE-A 425) and / or UE -B(427))).
  • the first electronic device 423 may receive the NOTIFY message and transmit a 200 OK message indicating that the NOTIFY message has been received to the server 405 .
  • the server 405 after receiving the REFER messages 447 and 455 , the server 405 sends a REFER message to the UE-A 425 and/or the UE-B 427 , may receive an INVITE request message from UE-A 425 and/or UE-B 427 and send INVITE messages 451, 459 to UE-A 425 and/or UE-B 427, Based on this, a conference call session 463 including the first electronic device 423 , the UE-A 425 , and the UE-B 427 may be established.
  • FIG. 4C illustrates a conference call session established with a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) (eg, a conference call session of FIG. 4B ) according to a comparative example.
  • 463 is a signal flow diagram 400c for explaining a method of inviting (eg, adding) a new UE (eg, the second electronic device 465 ).
  • the procedure for inviting a new UE (eg, the second electronic device 465) to the conference call session 463 illustrated in FIG. 4C is described at least in part in, for example, 3GPP standard document 24.605, in the following: A procedure for inviting a new UE (eg, the second electronic device 465) will be briefly described.
  • the second electronic device 465 may include a processor 120 and a wireless communication module 192 (eg, a first communication processor 212 and/or a second communication processor 214 ), and a second electronic device 465 .
  • the operation of the device 465 may be performed by at least one processor (eg, the processor 120 , the first communication processor 212 , and/or the second communication processor 214 ) performing a specified operation, or by another hardware component. It may mean controlling to perform a specified operation.
  • a conference call session 463 including the first electronic device 423 and a plurality of external electronic devices may be established.
  • a conference call setup procedure including the first electronic device 423 and a plurality of external electronic devices eg, UE-A 425 and UE-B 427) (eg, a conference call setup procedure) :
  • the first electronic device 423 and a plurality of external electronic devices are performed based on the procedure of the signal flow diagram 400b shown in FIG. 4B ).
  • a conference call session 463 including 427 may be established.
  • the first electronic device 423 may transmit an INVITE message 467 to the server 405 through the server 405 to invite the second electronic device 465 to the established conference call session 463 .
  • the INVITE message 467 is a SIP requesting hold of the previously established conference call session 463 (eg, hold of the multimedia session between the first electronic device 423 and the server 405 ). It may include a message based on it.
  • the server 405 may transmit a 200 OK message 469 to the first electronic device 423 in response to receiving the INVITE message 467 .
  • the 200 OK message 469 may include a SIP-based message indicating that the INVITE message 467 transmitted by the first electronic device 423 has been received by the server 405 .
  • a call session between the first electronic device 423 and the server 405 eg, the first electronic device 423 and the server ( 405) may be held.
  • a call session 471 between the first electronic device 423 and the second electronic device 465 may be established.
  • a general call setup procedure eg, the procedure of the signal flow diagram 400a illustrated in FIG. 4A
  • the first electronic device A call session 471 between the 423 and the second electronic device 465 may be established.
  • the first electronic device 423 may transmit an INVITE message 473 to the second electronic device 465 through the server 405 to hold the established call session 471 .
  • the INVITE message 473 may include a SIP-based message requesting hold of the established call session 471 .
  • the second electronic device 465 may transmit a 200 OK message 475 to the first electronic device 423 via the server 405 .
  • the 200 OK message 475 may include a SIP-based message indicating that the INVITE message 473 transmitted by the first electronic device 423 has been received by the second electronic device 465 .
  • a call session eg, the first electronic device 423
  • a multimedia session between the second electronic device 465) may be held.
  • the first electronic device 423 sends an INVITE message 477 for resuming the held conference call session 463 (eg, a multimedia session between the first electronic device 423 and the server 405) to the server 405 .
  • the INVITE message 477 may include a SIP-based message requesting resumption of a held conference call session 463 (eg, a multimedia session between the first electronic device 423 and the server 405 ).
  • the server 405 may transmit a SIP-based 200 OK message 479 indicating reception of the INVITE message 477 to the first electronic device 423 .
  • the held conference call session 463 eg, a multimedia session between the first electronic device 423 and the server 405 is to be resumed through the above-described procedure of transmitting and receiving the INVITE message 477 and the 200 OK message 479 .
  • the held conference call session 463 (eg, a multimedia session between the first electronic device 423 and the server 405 ) is resumed.
  • a SIP-based REFER message 481 (eg, REFER request) may be transmitted to the server 405 . .
  • the REFER message 481 includes identification information (eg, a From header including SIP address information and/or a tag number) of a host device (eg, the first electronic device 423), a device to be invited (eg, : may include identification information (eg, To header including SIP address information) and method information (eg, Refer-To header) of the second electronic device 465).
  • identification information eg, a From header including SIP address information and/or a tag number
  • a host device eg, the first electronic device 423
  • a device to be invited eg, may include identification information (eg, To header including SIP address information) and method information (eg, Refer-To header) of the second electronic device 465).
  • the server 405 transmits a SIP-based 202 Accepted message 483 indicating that it accepts the received REFER message 481 to the first electronic device 423 and resumes.
  • An INVITE message 485 for inviting the second electronic device 465 to the conference call session 463 may be transmitted to the second electronic device 465 .
  • the INVITE message 485 includes identification information (eg, a From header including SIP address information and/or a tag number) of a host device (eg, the first electronic device 423), a device to be invited (eg, : Includes identification information (eg, To header including SIP address information) of the second electronic device 465) and identification information of a conference call session (eg, Contact header including SIP address information and/or isfocus feature) can do.
  • identification information eg, a From header including SIP address information and/or a tag number
  • a host device eg, the first electronic device 423
  • a device to be invited eg, : Includes identification information (eg, To header including SIP address information) of the second electronic device 465)
  • identification information of a conference call session eg, Contact header including SIP address information and/or isfocus feature
  • the second electronic device 465 may transmit a SIP-based 200 OK message 487 indicating reception of the INVITE message 485 to the server 405 .
  • the second electronic device 465 may join (eg, add) to the resumed conference call session 463 (eg, add). For example, the second electronic device 465 may join the resumed conference call session 463).
  • joining eg, joining
  • the second electronic device 465 for the resumed conference call session includes the first electronic device 423 , a plurality of It may be described that a conference call session 489 including external electronic devices (eg, UE-A 425 and UE-B 427 ) and a second electronic device 465 is established.
  • external electronic devices eg, UE-A 425 and UE-B 427
  • the conference call session 463 is held (eg, the multimedia session between the first electronic device 423 and the server 405 is held). Based on this, the voice and/or video call service of the first electronic device 423 may be temporarily suspended for a certain period (“Conference HOLDED”) (eg, from time point 469 to time point 479), and the conference call session ( 463 ) and transmission/reception of SIP-based messages (eg, 467 , 469 , 473 , 475 ) may be required during the hold of the call session 471 .
  • Conference HOLDED eg, from time point 469 to time point 479
  • FIG. 5 illustrates a conference call session established with a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) (eg, the conference of FIG. 4B ), according to various embodiments of the present disclosure; It is a signal flow diagram 500 for explaining a method of inviting (eg, adding) the second electronic device 465 to a call session 463 ).
  • a plurality of external electronic devices eg, UE-A 425 and UE-B 427 of FIG. 4B
  • It is a signal flow diagram 500 for explaining a method of inviting (eg, adding) the second electronic device 465 to a call session 463 ).
  • the first electronic device 423 includes a first electronic device 423 and a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 ).
  • a conference call session 463 may be established.
  • a conference call setup procedure including the first electronic device 423 and a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 ) (eg, as shown in FIG. 4B )
  • a first electronic device 423 and a plurality of external electronic devices are included based on the procedure of the signal flow diagram 400b) is performed.
  • a conference call session 463 may be established.
  • the first electronic device 423 transmits the text message 501 to the second electronic device 465 via the server 405 or another entity, and Device 465 may receive text message 501 , via server 405 or other entity.
  • the text message 501 may include at least one of a message (eg, RCS chat) or an SMS message based on the RCS protocol, and there is no limitation on the implementation format.
  • the text message 501 is a message based on the RCS protocol
  • communication between the first electronic device 423 and the second electronic device 465 based on the RCS protocol At least one procedure for establishing a session (hereinafter, an RCS communication session) may be performed.
  • a 200 OK message corresponding to the received invitation message may be transmitted to the first electronic device 423 , and the first electronic device 423 may receive a 200 OK message corresponding to the transmitted invitation message.
  • an RCS communication session between the first electronic device 423 and the second electronic device 465 may be established, and through the established RCS communication session, a text message 501 based on the RCS protocol and an RCS protocol to be described later
  • a response message 503 based on may be transmitted and/or received.
  • the SMS-based A text message 501 of , and an SMS-based response message 503 to be described later may be transmitted and/or received.
  • the second electronic device 465 transmits the response message 503 to the first electronic device 423 via the server 405 , and the first electronic device 423 includes the server 405 .
  • a response message 503 may be received.
  • the response message 503 may include at least one of a text message or an SMS message based on the RCS protocol.
  • the response message 503 transmitted by the second electronic device 465 is a text message 501 received by the second electronic device 465 is a text message based on the RCS protocol
  • the response based on the RCS protocol message if the text message 501 received by the second electronic device 465 is an SMS message, it may be an SMS-based text message.
  • the first electronic device 423 transmits the SIP-based REFER message 481 to the server 405 to invite the second electronic device 465 to the conference call session 463 .
  • the first electronic device 423 may transmit a REFER message 481 based on reception of the response message 503 .
  • the first electronic device 423 may transmit the RFFER message 481 based on information identified from the response message 503 .
  • the first electronic device 423 may transmit the response message 503 , but there is a limit to the trigger for transmission of the REFER message 481 . none.
  • the server 405 in response to receiving the REFER message 481 , sends a 202 Accepted message 483 to the first electronic device 423 and to the conference call session 463 in the second electronic device 463 .
  • the INVITE message 505 for inviting the device 465 may be transmitted to the second electronic device 465 , but there is no limit to the transmission order of the messages 483 and 505 .
  • the INVITE message 505 includes identification information (eg, a From header including SIP address information and/or a tag number) of a host device (eg, the first electronic device 423), and a device to be invited (eg, a From header).
  • identification information of the second electronic device 465) eg, To header including SIP address information
  • identification information of a conference call session eg, Contact header including SIP address information and/or isfocus feature
  • the second electronic device 465 in response to receiving the INVITE message 505 , sends a SIP-based 200 OK message 507 indicating reception of the INVITE message 505 to the server 405 . can be transmitted A call session 509 between the server 405 and the second electronic device 465 may be established through the above-described procedure for transmitting and receiving the INVITE message 505 and the 200 OK message 507 .
  • the server 405 and the second electronic device 465 may further include a process of transmitting and receiving a SIP-based message (eg, 100 Trying message, 183 Session in progress message, PRACK message, 200 OK (PRACK) message, and/or 180 Ringing message, shown in FIG. 4A ).
  • a SIP-based message eg, 100 Trying message, 183 Session in progress message, PRACK message, 200 OK (PRACK) message, and/or 180 Ringing message, shown in FIG. 4A .
  • a voice and/or video call service between the first electronic device 423 , a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 ) and the second electronic device 465 (eg: conference call service) may be provided.
  • a conference call session 463 including a first electronic device 423 and a plurality of external electronic devices is maintained, the call session 509 between the server 405 and the second electronic device 465 being established, the second electronic device 465 being joined to the conference call session 463 and/or
  • the first electronic device 423, a plurality of external electronic devices eg, UE-A 425 and UE-B (eg, UE-A 425 ) and UE-B ( 427)
  • a conference call session including a second electronic device 465 is established (eg, “Conference (first electronic device, UE-A, UE-B & second electronic device)”) can
  • the server 405 may transmit a NOTIFY message (eg, NOTIFY request) to the first electronic device 423 after transmitting the 202 Accepted message 483 to the first electronic device 423 .
  • the NOTIFY message may include information on the progress of processing based on the accepted REFER message 481 (eg, identification information on a device to be invited (eg, the second electronic device 465 )).
  • the server 405 may transmit a NOTIFY message (eg, NOTIFY request) to the first electronic device 423 after the 202 OK message 507 is received from the second electronic device 465 .
  • the NOTIFY message may include information on the progress of processing based on the accepted REFER message 481 (eg, identification information on the invited device (eg, the second electronic device 465 )).
  • the first electronic device 423 may receive the NOTIFY message and transmit a 200 OK message indicating that the NOTIFY message has been received to the server 405 .
  • a voice and/or video call service (eg, a conference call service) of the first electronic device 423 may be maintained (eg, a conference call service). , may not be held) (eg, "Conference (first electronic device, UE-A & UE-B)"), an invitation procedure of the second electronic device 465 according to a comparative example (eg, shown in FIG. 4C )
  • the number of SIP-based messages required for transmission and reception may be relatively small compared to the procedure of the signal flow diagram 400c).
  • FIG. 6A illustrates an invitation to a second electronic device (eg, the second electronic device 465 of FIG. 5 ) to an established conference call session (eg, the conference call session 463 of FIG. 4B ) according to various embodiments of the present disclosure;
  • the first electronic device eg, the first electronic device 423 of FIG. 5
  • the first electronic device 423 performs a conference call with a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ).
  • a session 463 may be established.
  • the first electronic device 423 may transmit the text message 501 to the second electronic device 465 while the established conference call session 463 is maintained. .
  • the first electronic device 423 does not hold the established conference call session 463 and sends the text message 501 to the second through the IMS server (eg, the server 405 of FIG. 5 ). may be transmitted to the electronic device 465 .
  • the first electronic device 423 connects the second electronic device 465 through various input interfaces (eg, the input module 150 and/or the display module 160 of FIG. 1 ). A user's input for invitation may be received, and it will be described in more detail with reference to the drawings to be described later.
  • the first electronic device 423 may receive a response message 503 to the text message 501 from the second electronic device 465 in operation 650a. For example, while the established conference call session 463 is maintained, the first electronic device 423 sends a response message 503 to the second electronic device ( 465) can be received.
  • the first electronic device 423 in response to receiving the response message 503 , invites the second electronic device 465 to the established conference call session 463 .
  • the requesting REFER message 481 may be transmitted to the IMS server (eg, the server 405 ).
  • the first electronic device 423 transmits the REFER message 481 to the IMS based on whether the invitation of the second electronic device 465 is accepted and/or the time when the response message 503 is received. It can be transmitted to a server (eg, the server 405), and will be described in more detail with reference to the drawings to be described later.
  • the second electronic device may be invited and/or participated.
  • FIG. 6B illustrates an invitation to a second electronic device (eg, the second electronic device 465 of FIG. 5 ) to an established conference call session (eg, the conference call session 463 of FIG. 4B ) according to various embodiments of the present disclosure; It is a flowchart 600b for explaining the operation of the second electronic device 465 in the (eg, adding) process.
  • a second electronic device eg, the second electronic device 465 of FIG. 5
  • an established conference call session eg, the conference call session 463 of FIG. 4B
  • the second electronic device 465 performs the first electronic device (eg, the first electronic device 423 of FIG. 5 ) and a plurality of external electronic devices (eg, FIG. 4B ).
  • a text message 501 may be received from the first electronic device 423 while the conference call session 463 established between the UE-A 425 and the UE-B 427 is maintained.
  • the second electronic device 465 transmits a first response message to the text message 501 (eg, the response message 503 of FIG. 5 ) to the first electronic device 423 . ) can be transmitted.
  • the second electronic device 465 is the first electronic device 423 through various input interfaces (eg, the input module 150 and/or the display module 160 of FIG. 1 ). It is possible to receive a user's input as to whether to accept the invitation, and it will be described in more detail with reference to the drawings to be described later.
  • the second electronic device 465 invites the established conference call session 463 in response to transmitting the first response message (eg, the response message 503 ).
  • the first response message eg, the response message 503
  • an invitation message eg, the INVITE message 505 of FIG. 5
  • the IMS server eg, the server 405 of FIG. 5
  • the second electronic device 465 performs a second response message (eg, the 200 OK message 507 of FIG. 5 ) corresponding to the invitation message (eg, the INVITE message 505 ). ) to the IMS server (eg, the server 405).
  • the second electronic device 465 based on the second electronic device 465 transmitting the second response message (eg, 200 OK message 507 ), the second electronic device 465 is connected to the conference call session 463 . can be subscribed
  • the second electronic device may be invited and/or participated.
  • FIG. 6C illustrates inviting a second electronic device (eg, the second electronic device 465 of FIG. 5 ) to an established conference call session (eg, the conference call session 463 of FIG. 4B ) according to various embodiments of the present disclosure
  • a second electronic device eg, the second electronic device 465 of FIG. 5
  • an established conference call session eg, the conference call session 463 of FIG. 4B
  • it is a flowchart 600c for explaining the operation of a server (eg, the server 405 of FIG. 5 ).
  • a server eg, the server 405 of FIG. 5 .
  • a first electronic device eg, the first electronic device 423 of FIG. 5
  • a plurality of external electronic devices eg, UE- of FIG. 4B
  • the server 405 in operation 630c , in response to receiving the REFER message 481 , invites the second electronic device 465 to the established conference call session 463 , the server A call session 509 may be established between the 405 and the second electronic device 465 .
  • the server 405 receives the REFER message 481 and receives the REFER message 481 in a state where the call session 509 between the server 405 and the second electronic device 465 is not established.
  • a response message eg, 200 OK message 507 of FIG. 5
  • the second electronic device 465 based on the call session 509 being established while the conference call session 463 is maintained (eg, not held), the second electronic device 465 initiates the conference call session.
  • the second electronic device 465 may be invited and/or joined to 463 .
  • the second electronic device may be invited and/or participated.
  • FIG. 7 illustrates a time point when a response message (eg, the response message 503 of FIG. 5 ) is received by the first electronic device (eg, the first electronic device 423 of FIG. 5 ), according to various embodiments of the present disclosure; Based on this, it is a flowchart 700 for explaining a method of transmitting a REFER message (eg, the REFER message 481 of FIG. 5 ).
  • a response message eg, the response message 503 of FIG. 5
  • the first electronic device eg, the first electronic device 423 of FIG. 5
  • the first electronic device 423 performs a text message (eg, FIG. 5 ) while an established conference call session (eg, the conference call session 463 of FIG. 4B ) is maintained. text message 501 of ) to the second electronic device (eg, the second electronic device 465 of FIG. 5 ).
  • the first electronic device 423 transmits the response message 503 to the text message 501 within a predetermined time (eg, an expiration timeout). You can check whether it is received or not. For example, the first electronic device 423 may check whether a response message 503 is received within a predetermined time (eg, 30 seconds) after transmitting the text message 501 .
  • a predetermined time eg, 30 seconds
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, as shown in FIG. 5 ). server 405).
  • the response message 503 may include information on whether to accept the invitation from the second electronic device 465 . For example, if the first electronic device 423 determines that the response message 503 includes information regarding the rejection of the invitation from the second electronic device 465 , the response message 503 is received within a predetermined time Even if it is confirmed that the REFER message 481 is not transmitted to the IMS server (eg, the server 405).
  • the first electronic device 423 responds Based on the message 503 being received within a predetermined time, the REFER message 481 may be transmitted to the IMS server (eg, the server 405 ).
  • the IMS server eg, the server 405
  • the 202 Accepted messages 483 to 200 described in FIG. 5 .
  • a procedure of transmitting and receiving the OK message 507 is performed, the first electronic device 423, a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) and a second electronic device
  • a conference call session 509 between the devices 465 may be established (eg, invited and/or joined by the second electronic device 465 ).
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, the server ( 405)) may not be transmitted.
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, server ( 405)) may not be transmitted.
  • the first electronic device 423 performs operation 710 again to transmit the text message 501 to the second electronic device 465 . ), and after retransmitting the text message 501, if a response message 503 is received within a predetermined time (eg, 30 seconds), the REFER message 481 is transmitted to the IMS server (eg, server 405).
  • a predetermined time eg, 30 seconds
  • FIG. 8 is a diagram of a first electronic device (eg, the first electronic device 423 of FIG. 5 ) and a second electronic device (eg, the second electronic device 465 of FIG. 5 ) according to various embodiments of the present disclosure It is a flowchart 800 for explaining a method of transmitting a REFER message (eg, the REFER message 481 of FIG. 5 ) based on whether the invitation is accepted.
  • a REFER message eg, the REFER message 481 of FIG. 5
  • the first electronic device 423 performs a text message (eg, FIG. 5 ) while an established conference call session (eg, the conference call session 463 of FIG. 4B ) is maintained. text message 501 of ) to the second electronic device (eg, the second electronic device 465 of FIG. 5 ).
  • the first electronic device 423 may identify information indicating rejection of the second electronic device 465 for the established conference call session 463 .
  • the response message 503 includes a specified string and/or a message (eg, a response message) including information regarding rejection of the invitation by the second electronic device 465 .
  • a message eg, a response message
  • information indicating rejection of the second electronic device 465 may be checked, which will be described later. to be described in more detail.
  • the first electronic device 423 may not transmit the REFER message 481 to the IMS server (eg, the server 405 of FIG. 5 ). For example, when information indicating rejection of the second electronic device 465 for the established conference call session 463 is checked, the first electronic device 423 transmits the REFER message 481 to the IMS server (eg: server 405).
  • the IMS server eg: server 405
  • 9A illustrates a method for inviting a second electronic device 465 through a touch screen 901 (eg, the display module 160 of FIG. 1 ) of the first electronic device 423 according to various embodiments of the present disclosure; It is a diagram for explaining a method of receiving a user's input.
  • a touch screen 901 eg, the display module 160 of FIG. 1
  • a first electronic device An example of a screen displayed on the touch screen 901 of 423 is shown.
  • information related to an ongoing conference call service and/or a function related to an ongoing conference call service may be provided through a screen displayed on the touch screen 901 .
  • information related to an ongoing conference call service may include the number 903 (eg, "AAA") of users (hereinafter, participants) participating in the conference call service (eg, conference call session 463 of FIG. 4B ). and 2 people"), information 905 indicating that the audio and/or video call service in progress is a conference call service (eg "group call"), and/or the time the conference call service was conducted (907) (eg " 00:10").
  • AAA of reference numeral 903 may indicate identification information (eg, the user name of the device stored in the phone book, stored in the phone book) of the device first invited to a conference call service (eg, a conference call session).
  • information related to an ongoing conference call service may include an object 909 (eg, an image and/or text) representing a host device (eg, the first electronic device 423 ) and/or invited devices (eg, an image and/or text).
  • Example: may include objects 911a and 911b (eg, images and/or text) representing UE-A 425 and UE-B 427 of FIG. 4B .
  • "AAA” and "BBB” of reference numerals 911a and 911b are identification information (eg, phone book) of invited devices (eg, UE-A 425 and UE-B 427 in FIG. 4B ). stored in the user names of UE-A 425 and UE-B 427).
  • a function of adding (eg, inviting) a new participant to an ongoing conference call service may be provided through a screen displayed on the touch screen 901 .
  • the first electronic device 423 may receive a user input of touching the participant addition icon 913 through the touch screen 901 .
  • the first electronic device 423 may, for example, display an execution screen (eg, a contact application) (eg, a phonebook application).
  • a device to which an external electronic device corresponding to the selected contact is invited (eg, FIG. 5) of the second electronic device 465).
  • the first electronic device 423 displays a user interface for inputting a phone number of a device to be invited, and displays the user input through the displayed user interface.
  • An external electronic device corresponding to the phone number may be determined as a device to be invited (eg, the second electronic device 465 ).
  • the first electronic device 423 sends a text message (eg, to the device to be invited (eg, the second electronic device 465)) (eg, as shown in FIG. 5 ). By transmitting the text message 501), it is possible to check whether the invitation of the device to be invited (eg, the second electronic device 465) has been accepted.
  • FIG. 9B illustrates an invitation to the first electronic device 423 through the touch screen 915 of the second electronic device 465 (eg, the display module 160 of FIG. 1 ), according to various embodiments of the present disclosure. It is a diagram for explaining a method of receiving a user's input as to whether or not to accept.
  • a text message (eg, FIG. 4B )
  • the text message 501 of 5 is received, an example of a screen displayed on the touch screen 915 of the first electronic device 423 is illustrated.
  • An interface 917 may be displayed.
  • the user interface 917 inputs information 919a about the received text message 501 (eg, a text message based on the RCS protocol), accept the invitation to the conference call session 463 . It may include a first object 919b for receiving and/or a second object 919c for receiving an invitation rejection for the conference call session 463 .
  • information 919a regarding the received text message 501 eg, a text message based on the RCS protocol
  • the corresponding text message ( 501 ) of the device may include information indicating that the message inquires whether to accept the invitation to the conference call session 463 ("You have been invited to the conference call. Would you like to join?").
  • the second electronic device 465 when a user input of touching the first object 919b is received, transmits a response message 503 to the received text message 501 to the first electronic device It can be sent to (423).
  • the response message 503 transmitted when the first object 919b is selected may include information indicating acceptance of the invitation by the second electronic device 465 .
  • the second electronic device 465 after receiving the text message 501 from the first electronic device 423 , receives the first object (eg, expiration timeout) within a predetermined time (eg, expiration timeout). If 919b) is not selected, a notification may be displayed indicating that the time for accepting the invitation has elapsed.
  • information about a predetermined time may be included in the text message 501 , and the second electronic device 465 may display the predetermined information included in the text message 501 .
  • the second electronic device 465 after receiving the text message 501 from the first electronic device 423 , the second electronic device 465 receives the first object (eg, expiration timeout) within a predetermined time (eg, expiration timeout). 919b) is selected, a response message 503 in response to the received text message 501 may be transmitted to the first electronic device 423 .
  • the second electronic device 465 when a user input of touching the second object 919c is received, the second electronic device 465 transmits a response message 503 to the received text message 501 to the first electronic device It is not transmitted to 423 , or a response message 503 including information indicating rejection of the invitation of the second electronic device 465 may be transmitted to the first electronic device 423 .
  • FIG. 9C illustrates that a second electronic device (eg, the second electronic device 465 of FIG. 5 ) accepts an invitation to a conference call session (eg, the conference call session 463 of FIG. 4B ), according to various embodiments of the present disclosure; If not, it is a diagram for explaining a screen displayed through the display 921 (eg, the display module 160 of FIG. 1 ) of the first electronic device 423 .
  • a second electronic device eg, the second electronic device 465 of FIG. 5
  • a conference call session eg, the conference call session 463 of FIG. 4B
  • the first electronic device 423 transmits a text message (eg, the text message 501 of FIG. 5 ) to the second electronic device 465 , and then the second electronic device 465 .
  • a text message eg, the text message 501 of FIG. 5
  • the second electronic device 465 transmits a text message (eg, the text message 501 of FIG. 5 ) to the second electronic device 465 , and then the second electronic device 465 .
  • a message including information regarding invitation rejection of The user interface 923 eg, a pop-up notification
  • a REFER message eg, the REFER message 481 of FIG. 5
  • the IMS server eg: It may not be transmitted to the server 405 of FIG. 5.
  • the user interface 923 may include identification information (“010-XXXX-XXX”) (eg, phone number) of the device (eg, the second electronic device 465) that has rejected the invitation and/or Alternatively, information indicating that the device (eg, the second electronic device 465 ) that has received the text message 501 has rejected the invitation (“conference call invitation has been rejected”) may be included.
  • 9D illustrates an invitation to a conference call session (eg, conference call session 463 of FIG. 4B ) by a second electronic device (eg, second electronic device 465 of FIG. 5 ) according to various embodiments.
  • the first electronic device 423 after transmitting a text message (eg, the text message 501 of FIG. 5 ) to the second electronic device 465 , the first electronic device 423 transmits a predetermined time (eg, . ) (e.g. pop-up notifications).
  • a predetermined time e.g, .
  • the user interface 925 may include identification information (“010-XXXX-XXXX”) (eg, phone number) of the device that has not responded to the invitation (eg, the second electronic device 465) and / or information indicating that the device (eg, the second electronic device 465 ) that has received the text message 501 did not respond to the invitation (“You did not respond to the conference call invitation”) may be included.
  • the user interface 925 may provide a first object 927b for re-invite of the second electronic device 465 that has not responded to the invitation and a first object 927b for terminating the invitation procedure. 2 objects 927c may be included.
  • the first electronic device 423 when a user input of touching the first object 927b is received, the first electronic device 423 retransmits the text message 501 to the second electronic device 465 , and the text message After retransmitting 501 , it may be checked whether a response message 503 is received within a predetermined time.
  • the first electronic device 423 may end the invitation procedure of the second electronic device 465 that has not responded to the invitation. have.
  • 10A illustrates a REFER message (eg, FIG. 10A ) based on a character string included in a response message 503 by a first electronic device (eg, the first electronic device 423 of FIG. 5 ) according to various embodiments of the present disclosure
  • 5 is a flowchart 1000a for explaining a method of determining whether to transmit the REFER message 481).
  • 10B illustrates whether the second electronic device (eg, the second electronic device 465 of FIG. 5 ) accepts an invitation to the first electronic device 423 through a response message 503 according to various embodiments of the present disclosure; It is a diagram for explaining a method of informing (inform). Hereinafter, it will be described with reference to FIGS. 10A and 10B together.
  • the first electronic device 423 maintains an established conference call session (eg, the conference call session 463 of FIG. 4B ).
  • a message (eg, the text message 501 of FIG. 5 ) may be transmitted to the second electronic device 465 .
  • the text message 501 may include an SMS-based text message. If the first electronic device 423 and/or the second electronic device 465 does not support a function of transmitting and receiving a text message based on the RCS protocol, the first electronic device 423 transmits the SMS-based text message 501 When sending a request to the second electronic device 465 to transmit a response message (eg, the response message 503 in FIG.
  • the response message 503 to be transmitted includes a specified character string, so that the second electronic device (
  • the response message 503 is received from 465 , it can be identified that the received response message 503 is a response to the text message 501 for inviting the second electronic device 465 to the conference call session 463 . have.
  • the second electronic device 465 displays the content 1001 of the received text message 501 on the touch screen 915 .
  • the displayed content 1001 includes information 1003a about a received text message 501 (eg, an SMS-based text message) and information on a method of responding to an invitation from the first electronic device 423 .
  • the second electronic device 465 receives at least one predefined character (eg, “A” or “B”) through the user interface 1005 for text input, and receives the input at least one predefined character (eg, “A” or “B”).
  • a response message 503 eg, an SMS-based response message including “A” or “B”
  • the first electronic device 423 is invited You can indicate whether you accept it or not.
  • the second electronic device 465 may use the method described with reference to FIG. 10B . Accordingly, the SMS-based response message 503 including at least one predetermined text may be transmitted. According to another embodiment, according to the method described with reference to FIG. 10B , the second electronic device 465 includes at least one predefined character in the response message 503 based on the RCS protocol, so as to include at least one predefined character. It may transmit a response message 503 based on the RCS protocol including
  • the first electronic device 423 may receive a response message 503 to the text message 501 from the second electronic device 465 in operation 1030a.
  • the first electronic device 423 may identify a character string included in the response message 503 in operation 1050a.
  • the first electronic device 423 may determine whether the checked character string includes at least one predetermined character.
  • the at least one predefined letter is at least one letter for indicating invitation acceptance, and may include, for example, “A” when referring to FIG. 10B together.
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, in operation 1090a) (eg, as shown in FIG. 5 ). server 405).
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, the server 405) when it is determined that the checked character string does not include at least one predetermined character. may not transmit.
  • the first electronic device 423 when it is confirmed that the checked character string includes at least one predefined character (eg, “B” in FIG. 10B ) for indicating invitation rejection, the first electronic device 423 , a REFER message (481) may not be sent to the IMS server (eg, server 405).
  • 11A illustrates a first electronic device (eg, the first electronic device 423 of FIG. 5 ) from a second electronic device (eg, the second electronic device 465 of FIG. 5 ), according to various embodiments of the present disclosure;
  • a flowchart 1100a for explaining a method of determining whether to transmit a REFER message (eg, the REFER message 481 of FIG. 5 ) based on the time when the response message (eg, the response message 503 of FIG. 5 ) is received )to be.
  • 11B illustrates a case in which the second electronic device 465 transmits a response message 503 while a conference call session (eg, the conference call session 463 of FIG. 4B ) is not maintained, according to various embodiments of the present disclosure.
  • An example of a screen displayed on the second electronic device 465 is illustrated.
  • the first electronic device 423 performs a text message (eg, the text message of FIG. 5 ) while an established conference call session 463 is maintained. 501)) to the second electronic device 465 .
  • a text message eg, the text message of FIG. 5
  • an established conference call session 463 is maintained. 501
  • the first electronic device 423 may receive a response message 503 to the text message 501 from the second electronic device 465 in operation 1130a.
  • the first electronic device 423 may check whether the conference call session 463 is maintained in operation 1150a. For example, when receiving the response message 503 , the first electronic device 423 may check whether an established conference call session 463 is maintained.
  • the first electronic device 423 sends a REFER message 481 to the IMS server (eg, the server 405 of FIG. 5 ) in operation 1170a. )) can be transmitted.
  • the first electronic device 423 transmits the REFER message 481 to the IMS server (eg, the server 405 )
  • the 202 Accepted messages 483 to 200 described in FIG. 5 .
  • a procedure of transmitting and receiving the OK message 507 is performed, the first electronic device 423, a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) and a second electronic device
  • a conference call session 509 between the devices 465 may be established (eg, invited and/or joined by the second electronic device 465 ).
  • the first electronic device 423 may transmit information indicating the end of the conference call session 463 in operation 1190a.
  • the first electronic device 423 may transmit information indicating the end of the conference call session 463 to the second electronic device 465 through an IMS server (eg, the server 405 ).
  • the second electronic device 465 receives information indicating the end of the conference call session 463 and displays, for example, the screen shown in FIG. 11B on the touch screen 915 . can do.
  • the second electronic device 465 may display the user interface 1101 indicating that the conference call session 463 to which the second electronic device 465 responded to accept the invitation has already ended.
  • the user interface 1101 may display information indicating that the conference call session 463 to which the second electronic device 465 responded to accept the invitation has already ended (“The answered conference call has already ended.”) may include
  • the first electronic device may include at least one processor (eg, the processor 120 of FIG. 1 , FIGS. 2A and/or 2B ). a first communication processor 212 and/or a first communication processor 214 of FIGS. 2A and/or 2B ), wherein the at least one processor is configured to configure an IMS server (eg, server 405 of FIG. 5 ). through, establish a conference call session (eg, conference call session 463 of FIG. 4B ) with a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ).
  • a conference call session eg, conference call session 463 of FIG. 4B
  • a plurality of external electronic devices eg, UE-A 425 and UE-B 427 of FIG. 4B .
  • a text message (eg, the text message 501 of FIG. 5 ) is transmitted to a second electronic device (eg, the second electronic device 465 of FIG. 5 ); Receives a response message to the text message (eg, the response message 503 of FIG. 5 ) from the second electronic device, and in response to receiving the response message, invites the second electronic device to the established conference call session It may be configured to transmit a REFER message (eg, the REFER message 481 of FIG. 4C ) to the IMS server.
  • a REFER message eg, the REFER message 481 of FIG. 4C
  • the text message may include at least one of a message based on an RCS protocol and an SMS message.
  • the at least one processor performs at least one procedure for establishing a communication session between the first electronic device and the second electronic device based on the RCS protocol, and establishes communication based on the RCS protocol.
  • the at least one processor performs at least one procedure for establishing a communication session between the first electronic device and the second electronic device based on the RCS protocol, and establishes communication based on the RCS protocol.
  • it may be configured to transmit the REFER message to the IMS server.
  • the at least one procedure of establishing a communication session based on the RCS protocol includes a first procedure of transmitting an invitation message based on the RCS protocol to the second electronic device through the IMS server, and the IMS server. and a second procedure of receiving a 200 OK message corresponding to the invitation message based on the RCS protocol.
  • the at least one processor is, in response to identifying a character string included in the received response message, and confirming that the verified character string includes at least one predefined character, a REFER message can be set to transmit to the IMS server.
  • the at least one processor after transmitting the text message to the second electronic device, the at least one processor checks whether a response message is received within a predetermined time (eg, expiration timeout), and the response message is transmitted in advance. It may be configured to transmit a REFER message to the IMS server based on confirming that it is received within a specified time.
  • a predetermined time eg, expiration timeout
  • the at least one processor may be further configured not to transmit the REFER message based on confirming that the response message is not received within a predetermined time.
  • the first electronic device further includes a display (eg, the display module 160 of FIG. 1 ), and the at least one processor rejects the second electronic device for the established conference call session. If the information indicating (indicating) is confirmed, it may be further configured to display a user interface indicating rejection on the display and not to transmit a REFER message.
  • a display eg, the display module 160 of FIG. 1
  • the at least one processor rejects the second electronic device for the established conference call session. If the information indicating (indicating) is confirmed, it may be further configured to display a user interface indicating rejection on the display and not to transmit a REFER message.
  • the at least one processor determines whether an established conference call session is maintained, based on receiving the response message, and sends a REFER message based on confirming that the established conference call session is maintained. It can be set to transmit to the IMS server.
  • the at least one processor is configured to transmit information indicating termination of the conference call session to the second electronic device without transmitting a REFER message based on confirming that the established conference call session is not maintained. More can be set.
  • a call session between the IMS server and the second electronic device may be established based at least in part on the transmitted REFER message.
  • the second electronic device may include at least one processor (eg, the processor 120 of FIG. 1 , FIGS. 2A and/or 2B ). a first communication processor 212 and/or a first communication processor 214 of FIGS. 2A and/or 2B ), wherein the at least one processor includes a first electronic device (eg, the first electronic device of FIG. 5 ). 423) and a plurality of external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) established conference call session (eg, conference call session 463 of FIG. 4B )) While this is maintained, a text message (eg, the text message 501 of FIG.
  • a text message eg, the text message 501 of FIG.
  • a first response message to the text message (eg, the response message 503 of FIG. 5 ) is generated.
  • an invitation message for inviting the second electronic device to the established conference call session (eg, INVITE message 505 in FIG. 5 ) is transmitted to the IMS.
  • a second response message (eg, 200 OK message 507 in FIG. 5 ) corresponding to the invitation message is sent to the IMS server Based on the configured to transmit and transmitting the second response message, the second electronic device may join the established conference call session.
  • the at least one processor performs at least one procedure for establishing a communication session between the first electronic device and the second electronic device based on the RCS protocol, and establishes communication based on the RCS protocol.
  • it may be configured to receive the invitation message from the IMS server.
  • the at least one processor may be configured to receive the invitation message from the IMS server in response to transmitting the first response message including the character string composed of at least one predetermined character.
  • the text message includes information on a predetermined time during which the first response message can be transmitted, and the at least one processor, in response to transmitting the first response message within the predetermined time, includes an invitation message may be set to receive from the IMS server.
  • the second electronic device further includes a display (eg, the display module 160 of FIG. 1 ), and the at least one processor is configured on the display based on receiving the text message.
  • the at least one processor may be configured to transmit, through the displayed user interface, information indicating rejection to the first electronic device when an input indicating rejection of the established conference call session is received.
  • a call session between the IMS server and the second electronic device may be established based on transmitting the second response message.
  • a server may include at least one processor (eg, processor 120 of FIG. 1 , first communication processor 212 of FIGS. 2A and/or 2B ), according to various embodiments. ) and/or a first communication processor 214 of FIGS. 2A and/or 2B ), wherein the at least one processor includes a first electronic device (eg, the first electronic device 423 of FIG. 5 ) and a plurality of While the conference call session established between the external electronic devices (eg, UE-A 425 and UE-B 427 of FIG. 4B ) (eg, the conference call session 463 of FIG.
  • the external electronic devices eg, UE-A 425 and UE-B 427 of FIG. 4B
  • the first A REFER message (eg, the REFER message 481 of FIG. 4C ) is received from the first electronic device, and the REFER message includes identification information of a second electronic device (eg, the second electronic device 465 of FIG. 5 ) , in response to receiving the REFER message, establishes a call session (eg, call session 509 of FIG. 5 ) between the server and the second electronic device to invite the second electronic device to the established conference call session can be set to
  • the at least one processor may be further configured to receive a REFER message while a call session between the server and the second electronic device is not established.
  • first, second, or first or second may simply be used 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.
  • 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.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101).
  • a storage medium eg, internal memory 136 or external memory 138
  • the processor eg, the processor 120
  • the device eg, the electronic device 101
  • 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.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided in a computer program product (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 TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly or online between smartphones (eg: smartphones).
  • a portion 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 memory of a relay server.
  • each component eg, a module or a 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. have.
  • 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.
  • a plurality of components eg, a module or a program
  • 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. .
  • 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.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon divers modes de réalisation, un premier dispositif électronique comprend au moins un processeur. Ledit au moins un processeur peut être configuré pour : établir une session de conférence téléphonique avec une pluralité de dispositifs électroniques externes par l'intermédiaire d'un serveur IMS ; transmettre un message textuel à un second dispositif électronique pendant que la session de conférence téléphonique établie ; recevoir du second dispositif électronique un message de réponse au message textuel ; et, en réponse à la réception du message de réponse, transmettre un message de RECOMMANDATION au serveur IMS, le message de RECOMMANDATION étant un message demandant d'inviter le second dispositif électronique à la session de conférence téléphonique établie.
PCT/KR2022/000437 2021-03-09 2022-01-11 Dispositif électronique d'invitation à une conférence téléphonique au moyen d'un message textuel et procédé de commande dudit dispositif Ceased WO2022191401A1 (fr)

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