WO2024085473A1 - Dispositif électronique d'établissement de connexion p2p et son procédé de commande - Google Patents

Dispositif électronique d'établissement de connexion p2p et son procédé de commande Download PDF

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Publication number
WO2024085473A1
WO2024085473A1 PCT/KR2023/014182 KR2023014182W WO2024085473A1 WO 2024085473 A1 WO2024085473 A1 WO 2024085473A1 KR 2023014182 W KR2023014182 W KR 2023014182W WO 2024085473 A1 WO2024085473 A1 WO 2024085473A1
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Prior art keywords
electronic device
communication frequency
information
communication
connection
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PCT/KR2023/014182
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English (en)
Korean (ko)
Inventor
다누카앙킷
심상우
프라탑 싱로힛
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삼성전자주식회사
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Publication of WO2024085473A1 publication Critical patent/WO2024085473A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • This disclosure relates to an electronic device and a method of controlling the same, and more specifically, to an electronic device that forms a peer-to-peer (P2P) connection with another electronic device and a method of controlling the same.
  • P2P peer-to-peer
  • Wi-Fi P2P technology proposed by the Wi-Fi Alliance is a technology that provides compatibility with existing Wi-Fi and directly connects and communicates with devices that provide Wi-Fi functionality without an access point. .
  • the direct communication function between devices is similar to Bluetooth, but since Wi-Fi P2P has more advantages than Bluetooth in terms of transmission range and data transmission speed, the Wi-Fi P2P function is rapidly replacing Bluetooth.
  • Bluetooth 4.0 the most recent Bluetooth standard, supports a transmission range of up to 100m and a transmission rate of up to 24Mbps
  • Wi-Fi Direct supports a transmission range of up to 200m and a transmission rate of up to 300Mbps or more.
  • Wi-Fi P2P you can quickly share data, files, etc. between two devices, and you can also display the screen of one device on another device through applications such as screen mirroring, DLNA, etc.
  • an electronic device includes a communication interface and at least one processor connected to the communication interface to control the electronic device, and the processor is connected to the first access point. and controlling the communication interface to form a first communication channel at a first communication frequency, and receiving first information about a communication function of the other electronic device from another electronic device corresponding to the P2P connection and a second communication between the other electronic device and the other electronic device.
  • Receive second information about a second communication channel of an access point and based on at least one of the first information or the second information, the first communication frequency, a second communication frequency smaller than the first communication frequency, and
  • the P2P connection with the other electronic device can be formed by using one of the third communication frequencies smaller than the second communication frequency as the communication frequency for the P2P connection.
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency
  • the processor determines whether the other electronic device supports the first communication frequency based on the first information.
  • the first communication frequency may be set as the communication frequency for the P2P connection.
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency and information corresponding to whether the other electronic device supports RSDB (real simultaneous dual band), and the processor If the other electronic device does not support the first communication frequency based on the first information, the P2P connection is based on at least one of information about whether the other electronic device supports the RSDB or the second information.
  • the communication frequency for can be identified.
  • the processor configures the third communication frequency for the P2P connection. This can be done using communication frequencies.
  • the processor determines that the other electronic device does not support the RSDB and, based on the second information, determines that the other electronic device uses the second access point and the third communication frequency.
  • the third communication frequency can be set as the communication frequency for the P2P connection.
  • the processor enables the other electronic device to support the RSDB based on the first information, and allows the other electronic device to support the RSDB using the second access point and the third communication frequency.
  • the second communication frequency can be set as the communication frequency for the P2P connection.
  • the processor configures the second communication frequency for the P2P connection. This can be done using communication frequencies.
  • the processor may set the second communication frequency as the communication frequency for the P2P connection when the other electronic device does not establish the second communication channel with the second access point based on the second information. there is.
  • the first communication frequency may be a frequency band of 6 GHz
  • the second communication frequency may be a frequency band of 5 GHz
  • the third communication frequency may be a frequency band of 2.4 GHz.
  • the first access point may be the same as the second access point.
  • a method of controlling an electronic device includes forming a first communication channel with a first access point and a first communication frequency, Receiving first information about a communication function and second information about a second communication channel between the other electronic device and a second access point, based on at least one of the first information or the second information, the first information Forming the P2P connection with the other electronic device using one of a communication frequency, a second communication frequency smaller than the first communication frequency, and a third communication frequency smaller than the second communication frequency as the communication frequency for the P2P connection.
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency
  • the step of forming the P2P connection includes the other electronic device based on the first information.
  • the first communication frequency can be set as the communication frequency for the P2P connection.
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency and information corresponding to whether the other electronic device supports RSDB (real simultaneous dual band), and establishes the P2P connection.
  • the forming step includes, when the other electronic device does not support the first communication frequency, based on the first information, at least one of information about whether the other electronic device supports the RSDB or the second information. Based on this, the communication frequency for the P2P connection can be identified.
  • the forming of the P2P connection may include, when the other electronic device forms the second communication channel with the second access point and the first communication frequency based on the second information, the third communication frequency. This can be used as the communication frequency for the P2P connection.
  • the forming of the P2P connection may include determining that the other electronic device does not support the RSDB based on the first information, and determining that the other electronic device uses the second access point and the third based on the second information.
  • the third communication frequency can be set as the communication frequency for the P2P connection.
  • the forming of the P2P connection may include supporting the RSDB by the other electronic device based on the first information, and enabling the other electronic device to communicate with the second access point and the third device based on the second information.
  • the second communication channel is formed by frequency
  • the second communication frequency can be set as the communication frequency for the P2P connection.
  • the step of forming the P2P connection is performed when the other electronic device forms the second communication channel with the second access point and the second communication frequency based on the second information. This can be used as the communication frequency for the P2P connection.
  • the step of establishing the P2P connection may include, when the other electronic device does not establish the second communication channel with the second access point based on the second information, setting the second communication frequency for the P2P connection. This can be done using communication frequencies.
  • the first communication frequency may be a frequency band of 6 GHz
  • the second communication frequency may be a frequency band of 5 GHz
  • the third communication frequency may be a frequency band of 2.4 GHz.
  • the first access point may be the same as the second access point.
  • FIG. 1 is a block diagram showing the configuration of an electronic system according to an embodiment of the present disclosure.
  • Figure 2 is a block diagram showing the configuration of an electronic device according to an embodiment of the present disclosure.
  • FIG. 3 is a block diagram showing the detailed configuration of an electronic device according to an embodiment of the present disclosure.
  • Figures 4 to 7 are diagrams to explain a case where another electronic device supports the first communication frequency according to an embodiment of the present disclosure.
  • Figures 8 to 12 are diagrams to explain a case where another electronic device does not support the first communication frequency according to an embodiment of the present disclosure.
  • FIG. 13 is a flowchart illustrating a case where another electronic device does not support the first communication frequency according to an embodiment of the present disclosure.
  • FIG. 14 is a flowchart illustrating a method of controlling an electronic device according to an embodiment of the present disclosure.
  • the purpose of the present disclosure is to provide an electronic device and a control method for identifying an optimal Wi-Fi peer-to-peer (P2P) operating channel as a new frequency band is added.
  • P2P Wi-Fi peer-to-peer
  • expressions such as “have,” “may have,” “includes,” or “may include” refer to the presence of the corresponding feature (e.g., a numerical value, function, operation, or component such as a part). , and does not rule out the existence of additional features.
  • a or/and B should be understood as referring to either “A” or “B” or “A and B”.
  • expressions such as “first,” “second,” “first,” or “second,” can modify various components regardless of order and/or importance, and can refer to one component. It is only used to distinguish from other components and does not limit the components.
  • the term user may refer to a person using an electronic device or a device (eg, an artificial intelligence electronic device) using an electronic device.
  • a device eg, an artificial intelligence electronic device
  • FIG. 1 is a block diagram showing the configuration of an electronic system 1000 according to an embodiment of the present disclosure. As shown in FIG. 1 , the electronic system 1000 includes an electronic device 100, another electronic device 200, and an access point 300.
  • the electronic device 100 may be a device that forms a P2P connection with another electronic device 200 as a group owner (GO).
  • the electronic device 100 may include a TV, a desktop PC, a laptop, a video wall, a large format display (LFD), a digital signage, a digital information display (DID), a projector display, and a smartphone.
  • LFD large format display
  • DID digital information display
  • the electronic device 100 may be any device as long as it is a GO and is capable of P2P connection with another electronic device 200.
  • P2P may be named Wi-Fi P2P or Wi-Fi Direct.
  • the basic operation of the device discovery procedure performed in the process of creating a Wi-Fi P2P group can be performed by exchanging the request signal and response signal of the IEEE 802.11 MAC protocol.
  • the request signal includes information such as P2P IE, WSC IE, and Supp Reg IE
  • the response signal may include P2P IE, WSE IE, RSN IE, and Supp Reg IE.
  • the Wi-Fi P2P function is a technology proposed with compatibility with the existing general Wi-Fi function, that is, the legacy Wi-Fi function, in mind. Therefore, users can attempt a Wi-Fi P2P connection even while using the legacy Wi-Fi function. For example, while the electronic device 100 is connected to a specific access point and operating to provide communication functions, the user may request that the Wi-Fi P2P function be executed for the purpose of file sharing, etc.
  • the electronic device 100 may form a communication channel with the access point 300 using a first communication frequency.
  • the electronic device 100 may form a communication channel with the access point 300 in the 6 GHz frequency band.
  • the electronic device 100 may form a communication channel in the 6 GHz frequency band with the access point 300 and perform a P2P connection with another electronic device 200.
  • Another electronic device 200 may be a group client (GC) and may be a device that forms a P2P connection with the electronic device 100.
  • other electronic devices 200 include TVs, desktop PCs, laptops, video walls, large format displays (LFDs), digital signages, digital information displays (DIDs), projector displays, and smart devices. This may be a phone, tablet PC, washing machine, refrigerator, freezer, etc. However, it is not limited to this, and the other electronic device 200 may be any device that is capable of P2P connection with the electronic device 100 as a GC.
  • Another electronic device 200 may form a communication channel with the access point 300.
  • another electronic device 200 may form a communication channel with the access point 300 in one of the frequency bands of 2.4 GHz, 5 GHz, and 6 GHz.
  • the electronic device 100 may establish a communication channel with the access point 300 and perform a P2P connection with the electronic device 100.
  • the other electronic device 200 may be a device that does not support the 6 GHz frequency band.
  • the other electronic device 200 may form a communication channel with at least one of the electronic device 100 or the access point 300 in at least one frequency band of 2.4 GHz or 5 GHz.
  • the access point 300 may be a device that helps devices capable of wireless communication connect to a network.
  • the electronic device 100 and another electronic device 200 are shown as connected to one access point 300, but the connection is not limited thereto.
  • the electronic device 100 and another electronic device 200 may be connected to different access points.
  • FIG. 2 is a block diagram showing the configuration of an electronic device 100 according to an embodiment of the present disclosure.
  • the electronic device 100 includes a communication interface 110 and a processor 120.
  • the communication interface 110 is a component that communicates with various types of external devices according to various types of communication methods.
  • the electronic device 100 may communicate with another electronic device 200 or the access point 300 through the communication interface 110.
  • the communication interface 110 may include a Wi-Fi module, a Bluetooth module, an infrared communication module, a wireless communication module, etc.
  • each communication module may be implemented in the form of at least one hardware chip.
  • the WiFi module and Bluetooth module communicate using WiFi and Bluetooth methods, respectively.
  • various connection information such as SSID and session key are first transmitted and received, and various information can be transmitted and received after establishing a communication connection using this.
  • the infrared communication module performs communication according to infrared communication (IrDA, infrared data association) technology, which transmits data wirelessly over a short distance using infrared rays between optical light and millimeter waves.
  • IrDA infrared data association
  • wireless communication modules include zigbee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), LTE-A (LTE Advanced), 4G (4th Generation), and 5G. It may include at least one communication chip that performs communication according to various wireless communication standards such as (5th Generation).
  • the communication interface 110 may include a wired communication interface such as HDMI, DP, Thunderbolt, USB, RGB, D-SUB, DVI, etc.
  • the communication interface 110 may include at least one of a LAN (Local Area Network) module, an Ethernet module, or a wired communication module that performs communication using a pair cable, a coaxial cable, or an optical fiber cable.
  • LAN Local Area Network
  • Ethernet Ethernet
  • wired communication module that performs communication using a pair cable, a coaxial cable, or an optical fiber cable.
  • the processor 120 generally controls the operation of the electronic device 100. Specifically, the processor 120 is connected to each component of the electronic device 100 and can generally control the operation of the electronic device 100. For example, the processor 120 may be connected to components such as the communication interface 110, memory (not shown), and display (not shown) to control the operation of the electronic device 100.
  • At least one processor 120 includes a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Accelerated Processing Unit (APU), Many Integrated Core (MIC), Digital Signal Processor (DSP), Neural Processing Unit (NPU), It may include one or more of hardware accelerators or machine learning accelerators. At least one processor 120 may control one or any combination of other components of the electronic device 100 and may perform operations related to communication or data processing. At least one processor 120 may execute one or more programs or instructions stored in the memory 130. For example, at least one processor 120 may perform a method according to an embodiment of the present disclosure by executing one or more instructions stored in the memory 130.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • APU Accelerated Processing Unit
  • MIC Many Integrated Core
  • DSP Digital Signal Processor
  • NPU Neural Processing Unit
  • At least one processor 120 may control one or any combination of other components of the electronic device 100 and may perform operations related to communication or data processing.
  • At least one processor 120 may execute one or more programs or instructions stored in the memory 130. For
  • the plurality of operations may be performed by one processor or by a plurality of processors.
  • the first operation, the second operation, and the third operation may all be performed by the first processor
  • the first operation and the second operation may be performed by a first processor (eg, a general-purpose processor)
  • the third operation may be performed by a second processor (eg, an artificial intelligence-specific processor).
  • At least one processor 120 may be implemented as a single core processor including one core, or one or more multi-core processors including a plurality of cores (e.g., homogeneous multi-core or heterogeneous multi-core). It may also be implemented as a core processor (multicore processor). When at least one processor 120 is implemented as a multi-core processor, each of the plurality of cores included in the multi-core processor may include processor internal memory such as cache memory and on-chip memory. A common cache shared by cores may be included in a multi-core processor.
  • each of the plurality of cores (or some of the plurality of cores) included in the multi-core processor may independently read and execute program instructions for implementing the method according to an embodiment of the present disclosure, and all of the plurality of cores may (or part of) may be linked to read and perform program instructions for implementing the method according to an embodiment of the present disclosure.
  • the plurality of operations may be performed by one core among a plurality of cores included in a multi-core processor, or may be performed by a plurality of cores.
  • the first operation, the second operation, and the third operation are performed by the method according to an embodiment, the first operation, the second operation, and the third operation are all performed on the first core included in the multi-core processor.
  • the first operation and the second operation may be performed by the first core included in the multi-core processor, and the third operation may be performed by the second core included in the multi-core processor.
  • At least one processor 120 is included in a system-on-chip (SoC), a single-core processor, a multi-core processor, or a single-core processor or multi-core processor in which one or more processors and other electronic components are integrated.
  • SoC system-on-chip
  • a single-core processor may mean a core, where the core may be implemented as a CPU, GPU, APU, MIC, DSP, NPU, hardware accelerator, or machine learning accelerator, but embodiments of the present disclosure are not limited thereto.
  • the operation of the electronic device 100 will be described using the term processor 120.
  • the processor 120 controls the communication interface 110 to form a first communication channel with the first access point and the first communication frequency, and transmits information from the other electronic device 200 to the electronic device 100 for P2P connection.
  • First information about the communication function of the device 200 and second information about the second communication channel between the other electronic device 200 and the second access point may be received.
  • the first information may include information corresponding to whether the other electronic device 200 supports the first communication frequency and information corresponding to whether the other electronic device 200 supports RSDB (real simultaneous dual band).
  • RSDB is a technology that performs simultaneous connection and transmission and reception through dual bands in a Wi-Fi module that supports MIMO (multiple input multiple output). For example, when using RSDB, simultaneous connection and transmission and reception are possible through different frequency bands such as 2.4GHz and 5GHz. That is, in a Wi-Fi module that supports MIMO, 1 ⁇ 1 is assigned to the channel connected to the access point 300 from 2 ⁇ 2 MIMO and 1 ⁇ 1 is assigned to the P2P channel, thereby enabling simultaneous connection between different bands by physical antenna separation. This is possible.
  • RSDB is not a time sharing method of MCC, which will be explained later, so its performance does not deteriorate as much as MCC.
  • the processor 120 establishes a P2P connection using one of a first communication frequency, a second communication frequency smaller than the first communication frequency, and a third communication frequency smaller than the second communication frequency based on at least one of the first information and the second information.
  • a P2P connection can be formed with another electronic device 200 using a communication frequency for the device. That is, the processor 120 sets one of the first communication frequency, the second communication frequency, and the third communication frequency as the communication frequency for the P2P connection based on at least one of the first information and the second information, and sets the identified communication frequency
  • a P2P connection can be formed with another electronic device 200.
  • the first communication frequency may be a frequency band of 6GHz
  • the second communication frequency may be a frequency band of 5GHz
  • the third communication frequency may be a frequency band of 2.4GHz.
  • the first communication frequency, second communication frequency, and third communication frequency may be any number of different frequency bands.
  • the processor 120 may identify the first communication frequency as the communication frequency for the P2P connection. For example, if the other electronic device 200 supports the 6 GHz frequency band based on the first information, the processor 120 may identify the 6 GHz frequency band as the communication frequency for the P2P connection.
  • the second information about whether the other electronic device 200 is connected to the second access point and the second communication channel between the other electronic device 200 and the second access point identifies the communication frequency for the P2P connection. There may be no effect.
  • the processor 120 If the other electronic device 200 does not support the first communication frequency based on the first information, the processor 120 provides at least one of information about whether the other electronic device 200 supports RSDB or second information. Based on this, the communication frequency for P2P connection can be identified.
  • the processor 120 configures the third communication frequency for P2P connection. It can be identified by communication frequency. For example, when the other electronic device 200 forms a second communication channel in the 6 GHz frequency band with the second access point based on the second information, the processor 120 uses the 2.4 GHz frequency band for communication for P2P connection. It can be identified by frequency.
  • the processor 120 determines that the other electronic device 200 does not support RSDB based on the first information, and the other electronic device 200 supports the second access point and the third communication frequency based on the second information.
  • the third communication frequency may be identified as the communication frequency for P2P connection.
  • the processor 120 determines that the other electronic device 200 does not support RSDB based on the first information, and the other electronic device 200 uses the second access point and the frequency band of 2.4 GHz based on the second information.
  • the 2.4 GHz frequency band can be identified as the communication frequency for P2P connection.
  • the processor 120 supports the RSDB for the other electronic device 200 based on the first information, and allows the other electronic device 200 to provide the second access point and the third communication frequency based on the second information.
  • the second communication frequency may be identified as the communication frequency for P2P connection.
  • the processor 120 supports RSDB in another electronic device 200 based on the first information, and supports the other electronic device 200 in the frequency band of 2.4GHz with the second access point based on the second information. 2
  • the 5GHz frequency band can be identified as the communication frequency for P2P connection.
  • the processor 120 sets the second communication frequency to the communication frequency for P2P connection. It can also be identified as For example, when the other electronic device 200 forms a second communication channel in the frequency band of 5 GHz with the second access point based on the second information, the processor 120 sets the frequency band of 5 GHz as the communication frequency for P2P connection. It can be identified as:
  • the processor 120 may identify the second communication frequency as the communication frequency for P2P connection when the other electronic device 200 does not establish a second communication channel with the second access point based on the second information. there is. For example, if the other electronic device 200 does not form a second communication channel with the second access point based on the second information, the processor 120 may identify the 5 GHz frequency band as the communication frequency for the P2P connection. there is.
  • the first access point and the second access point are described separately, but the first access point may be the same as the second access point.
  • FIG. 3 is a block diagram showing the detailed configuration of the electronic device 100 according to an embodiment of the present disclosure.
  • the electronic device 100 may include a communication interface 110 and a processor 120. Additionally, according to FIG. 3 , the electronic device 100 may further include a memory 130, a display 140, a user interface 150, a microphone 160, a speaker 170, and a camera 180. Among the components shown in FIG. 3, detailed descriptions of parts that overlap with the components shown in FIG. 2 will be omitted.
  • the memory 130 may refer to hardware that stores information such as data in electrical or magnetic form so that the processor 120 or the like can access it. To this end, the memory 130 may be implemented with at least one hardware selected from non-volatile memory, volatile memory, flash memory, hard disk drive (HDD) or solid state drive (SSD), RAM, ROM, etc. .
  • At least one instruction required for operation of the electronic device 100 or the processor 120 may be stored in the memory 130.
  • an instruction is a code unit that instructs the operation of the electronic device 100 or the processor 120, and may be written in machine language, a language that a computer can understand.
  • a plurality of instructions for performing specific tasks of the electronic device 100 or the processor 120 may be stored in the memory 130 as an instruction set.
  • the memory 130 may store data, which is information in bits or bytes that can represent letters, numbers, images, etc.
  • data which is information in bits or bytes that can represent letters, numbers, images, etc.
  • a P2P connection module, etc. may be stored in the memory 130.
  • the memory 130 is accessed by the processor 120, and the processor 120 can read/write/modify/delete/update instructions, instruction sets, or data.
  • the display 140 is a component that displays images and can be implemented as various types of displays, such as a Liquid Crystal Display (LCD), Organic Light Emitting Diodes (OLED) display, or Plasma Display Panel (PDP).
  • the display 140 may also include a driving circuit and a backlight unit that may be implemented in the form of a-si TFT, low temperature poly silicon (LTPS) TFT, or organic TFT (OTFT).
  • LTPS low temperature poly silicon
  • OTFT organic TFT
  • the display 140 may be implemented as a touch screen combined with a touch sensor, a flexible display, a 3D display, etc.
  • the user interface 150 may be implemented with buttons, a touch pad, a mouse, and a keyboard, or may be implemented with a touch screen that can also perform a display function and a manipulation input function.
  • the button may be various types of buttons such as mechanical buttons, touch pads, wheels, etc. formed on any area of the exterior of the main body of the electronic device 100, such as the front, side, or back.
  • the microphone 160 is configured to receive sound input and convert it into an audio signal.
  • the microphone 160 is electrically connected to the processor 120 and can receive sound under the control of the processor 120.
  • the microphone 160 may be formed as an integrated piece, such as on the top, front, or side surfaces of the electronic device 100.
  • the microphone 160 may be provided on a remote control separate from the electronic device 100. In this case, the remote control may receive sound through the microphone 160 and provide the received sound to the electronic device 100.
  • the microphone 160 includes a microphone that collects analog sound, an amplifier circuit that amplifies the collected sound, an A/D conversion circuit that samples the amplified sound and converts it into a digital signal, and removes noise components from the converted digital signal. It may include various configurations such as filter circuits, etc.
  • the microphone 160 may be implemented in the form of a sound sensor, and any configuration that can collect sound may be used.
  • the speaker 170 is a component that outputs not only various audio data processed by the processor 120 but also various notification sounds or voice messages.
  • the electronic device 100 may further include a camera 180.
  • the camera 180 is configured to capture still images or moving images.
  • the camera 180 can capture still images at a specific point in time, but can also capture still images continuously.
  • the camera 180 includes a lens, a shutter, an aperture, a solid-state imaging device, an analog front end (AFE), and a timing generator (TG).
  • the shutter controls the time when light reflected by the subject enters the camera 180
  • the aperture controls the amount of light incident on the lens by mechanically increasing or decreasing the size of the opening through which light enters.
  • a solid-state imaging device outputs the image due to the photocharge as an electrical signal.
  • the TG outputs a timing signal to read out pixel data from the solid-state imaging device, and the AFE samples and digitizes the electrical signal output from the solid-state imaging device.
  • the electronic device 100 can form a P2P connection with another electronic device 200 at an optimal communication frequency to increase overall processing performance of functions such as screen mirroring and DLNA.
  • the electronic device 100 can stream 8K video without using a codec that degrades image quality according to the above embodiment. You can mirror from your phone to your TV.
  • FIGS. 4 to 13 individual embodiments are described for convenience of explanation. However, the individual embodiments of FIGS. 4 to 13 may be implemented in any number of combinations.
  • FIGS. 4 to 7 are diagrams to explain a case where another electronic device 200 supports the first communication frequency according to an embodiment of the present disclosure.
  • the processor 120 may be in a state in which a first communication channel is established with the access point 300 using a first communication frequency.
  • the processor 120 may receive first information about the communication function of the other electronic device 200 and second information about the second communication channel between the other electronic device 200 and the access point 300.
  • the first information may include information corresponding to whether the other electronic device 200 supports the first communication frequency and information corresponding to whether the other electronic device 200 supports RSDB (real simultaneous dual band).
  • the electronic device 100 and the other electronic device 200 each identify themselves in the P2P information element (P2P IE) of the GO NEGOTIATION REQUEST/RESPONSE or INVITATION REQUEST/RESPONSE frame.
  • P2P IE P2P information element
  • bit 6 in the Device Capability Bitmap field of the P2P function attribute can be assigned as reserved for Wi-Fi Direct operation in the frequency band of 6 GHz. For example, if Wi-Fi Direct operation is possible in the frequency band of 6 GHz, bit 6 may be set to 1, and if not, bit 6 may be set to 0.
  • the processor 120 allows the other electronic device 200 to perform P2P through the frequency band of 6 GHz based on the value of bit 6 in the Device Capability Bitmap field of the P2P function attribute in the P2P IE received from the other electronic device 200. You can identify whether a connection is possible.
  • the processor 120 may identify the first communication frequency as the communication frequency for the P2P connection.
  • the processor 120 allows another electronic device 200, with which a communication channel is formed in the access point 300 through a frequency band of 6 GHz (e.g., channel 37, 6135 MHz), to communicate with the access point 300 at 6 GHz.
  • a frequency band of 6 GHz e.g., channel 37, 6135 MHz
  • the frequency band of 6 GHz can be identified as the communication frequency for P2P connection.
  • both the electronic device 100 and the other electronic device 200 may be in a single channel concurrency (SCC) state.
  • SCC means that the channel through which the device is connected to the access point and the P2P channel are the same, and the two antennas of the device operate in the same band and at the same frequency. Accordingly, both WLAN (Internet connection) and P2P can be transmitted and received on the same frequency.
  • the processor 120 allows another electronic device 200, with which a communication channel is formed in the access point 300 through a frequency band of 2.4 GHz (e.g., channel 1, 2412 MHz), to operate at a frequency of 6 GHz. If P2P connection is possible through the band, the 6 GHz frequency band can be identified as the communication frequency for P2P connection.
  • a frequency band of 2.4 GHz e.g., channel 1, 2412 MHz
  • the electronic device 100 may be in the SCC state, and the other electronic device 200 may be in the RSDB state.
  • the processor 120 allows another electronic device 200, with which a communication channel is formed in the access point 300 through a frequency band of 5 GHz (e.g., channel 40, 5200 MHz), to operate in a frequency band of 6 GHz. If P2P connection is possible through , the frequency band of 6 GHz can be identified as the communication frequency for P2P connection.
  • a frequency band of 5 GHz e.g., channel 40, 5200 MHz
  • the electronic device 100 may be in an SCC state, and the other electronic device 200 may be in a multi channel concurrency (MCC) state.
  • MCC means that the channel connected to the access point and the P2P channel of the device are different, and the two antennas of the device operate in different bands and different frequencies. Accordingly, a continuous frequency shift occurs between the WLAN frequency and the P2P frequency, which can cause a lot of switching overhead.
  • the processor 120 when another electronic device 200 that is not connected to the access point 300 can make a P2P connection through the 6 GHz frequency band, the processor 120 performs a P2P connection in the 6 GHz frequency band. It can be identified by the communication frequency for.
  • the electronic device 100 may be in the SCC state.
  • the electronic device 100 can form a P2P connection with the other electronic device 200 through the frequency band of 6 GHz. Since the electronic device 100 is in the SCC state, throughput can be increased compared to the case of forming a P2P connection with another electronic device 200 at 2.4 GHz or 5 GHz.
  • Figures 8 to 12 are diagrams to explain a case where another electronic device does not support the first communication frequency according to an embodiment of the present disclosure.
  • the processor 120 may be in a state in which a first communication channel is established with the access point 300 using a first communication frequency.
  • the processor 120 may receive first information about the communication function of the other electronic device 200 and second information about the second communication channel between the other electronic device 200 and the access point 300.
  • the first information may include information corresponding to whether the other electronic device 200 supports the first communication frequency and information corresponding to whether the other electronic device 200 supports RSDB (real simultaneous dual band).
  • the processor 120 If the other electronic device 200 does not support the first communication frequency based on the first information, the processor 120 provides at least one of information about whether the other electronic device 200 supports RSDB or second information. Based on this, the communication frequency for P2P connection can be identified.
  • the processor 120 can identify as the communication frequency for P2P connection.
  • the electronic device 100 may be in a dual band simultaenous (DBS) state, and the other electronic device 200 may be in an RSDB state.
  • DBS is where WLAN and P2P operations occur in different bands, with one antenna remaining on the WLAN frequency and the second antenna remaining on the P2P frequency.
  • DBS has no switching overhead because there is no switching of antennas, but because it uses WLAN or P2P operation with only one antenna, throughput can be half that of SCC.
  • the processor 120 determines that the other electronic device 200 does not support RSDB based on the first information and that the other electronic device 200 supports the access point (Access Point) based on the second information. 300) and when a second communication channel is formed in the frequency band of 2.4GHz, the frequency band of 2.4GHz can be identified as the communication frequency for P2P connection.
  • the electronic device 100 may be in the DBS state, and the other electronic device 200 may be in the SCC state. Since the other electronic device 200 does not support RSDB, if a P2P connection is formed in the 5GHz frequency band, both the electronic device 100 and the other electronic device 200 may be in an MCC state, thereby reducing throughput.
  • the processor 120 supports the RSDB of the other electronic device 200 based on the first information and allows the other electronic device 200 to support the access point 300 based on the second information.
  • the 5 GHz frequency band can be identified as the communication frequency for P2P connection.
  • the electronic device 100 may be in the MCC state, and the other electronic device 200 may be in the RSDB state. If a P2P connection is established in the frequency band of 2.4 GHz, the other electronic device 200 enters the SCC state, which may reduce throughput compared to the RDBS state.
  • the processor 120 when the other electronic device 200 forms a second communication channel with the access point 300 in the 5 GHz frequency band based on the second information, the processor 120 operates in the 5 GHz frequency band.
  • the frequency band can be identified as a communication frequency for P2P connection.
  • the electronic device 100 may be in the MCC state, and the other electronic device 200 may be in the SCC state. If a P2P connection is established in the frequency band of 2.4 GHz, the other electronic device 200 enters the RSDB state, which may reduce throughput compared to the MCC state of the electronic device 100.
  • the processor 120 uses the 5 GHz frequency band as a P2P It can be identified by the communication frequency for connection.
  • the electronic device 100 may be in an MCC state. If a P2P connection is established in the frequency band of 2.4 GHz, the electronic device 100 enters the DBS state, which may reduce throughput compared to the MCC state of the electronic device 100.
  • FIG. 13 is a flowchart illustrating a case where another electronic device does not support the first communication frequency according to an embodiment of the present disclosure.
  • the processor 120 can form a first communication channel with the access point 300 in the 6 GHz frequency band (S1310) and secure the default 2.4 GHz frequency band and the 5 GHz frequency band (S1320).
  • the processor 120 can share its functions with other electronic devices 200 through GO Negotiation or invitation process.
  • the processor 120 adds a vendor specific information element (VSIE) to the GO Negotiation response or invitation response packets from the other electronic device 200 to determine whether the communication channel and RSDB are supported between the other electronic device 200 and the access point 300.
  • Information can be received (S1330).
  • the processor 120 When the processor 120 identifies that the other electronic device 200 has not formed a second communication channel with the access point 300 (S1340), the processor 120 forms a P2P connection with the other electronic device 200 in the frequency band of 5 GHz. (S1345).
  • the processor 120 operates when the other electronic device 200 forms a second communication channel in the frequency band of 6 GHz with the second access point (S1350) or when the other electronic device 200 forms a DFS channel with the second access point.
  • a P2P connection can be formed with another electronic device 200 in the 2.4 GHz frequency band (S1360).
  • the processor 120 forms a P2P connection with the other electronic device 200 in the 5 GHz frequency band. You can (S1375).
  • the processor 120 operates in the 5 GHz frequency band if the other electronic device 200 supports RSDB.
  • a P2P connection can be formed with another electronic device 200 (S1385). If the other electronic device 200 does not support RSDB, a P2P connection can be formed with the other electronic device 200 in the frequency band of 2.4 GHz ( S1390).
  • FIG. 14 is a flowchart illustrating a method of controlling an electronic device according to an embodiment of the present disclosure.
  • a first communication channel is formed using the first access point and the first communication frequency (S1410). Then, first information about the communication function of the other electronic device and second information about the second communication channel between the other electronic device and the second access point are received from the other electronic device corresponding to the P2P connection (S1420). And, based on at least one of the first information or the second information, one of the first communication frequency, the second communication frequency smaller than the first communication frequency, and the third communication frequency smaller than the second communication frequency is selected as the communication frequency for the P2P connection. This forms a P2P connection with another electronic device (S1430).
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency, and the step of forming a P2P connection is performed when the other electronic device supports the first communication frequency based on the first information,
  • the first communication frequency can be identified as a communication frequency for P2P connection.
  • the first information includes information corresponding to whether the other electronic device supports the first communication frequency and information corresponding to whether the other electronic device supports RSDB (real simultaneous dual band), and the step of forming a P2P connection is the first step.
  • the communication frequency for the P2P connection can be identified based on at least one of information about whether the other electronic device supports RSDB or second information. You can.
  • the third communication frequency is used for communication for the P2P connection. It can be identified by frequency.
  • the step of forming a P2P connection may be performed when the other electronic device does not support RSDB based on the first information, and the other electronic device establishes a second communication channel with the second access point and a third communication frequency based on the second information.
  • the third communication frequency can be identified as the communication frequency for P2P connection.
  • forming a P2P connection may include supporting RSDB in another electronic device based on the first information, and forming a second communication channel with the second access point and the third communication frequency in the other electronic device based on the second information.
  • the second communication frequency may be identified as a communication frequency for P2P connection.
  • the second communication frequency is changed to the communication frequency for the P2P connection.
  • the second communication frequency may be identified as the communication frequency for the P2P connection.
  • the first communication frequency may be a frequency band of 6GHz
  • the second communication frequency may be a frequency band of 5GHz
  • the third communication frequency may be a frequency band of 2.4GHz.
  • the first access point may be the same as the second access point.
  • an electronic device can increase overall processing performance of functions such as screen mirroring, DLNA, etc. by forming a P2P connection with another electronic device at an optimal communication frequency.
  • the electronic device is a smartphone and the other electronic device is a TV
  • the electronic device can mirror 8K video from the smartphone to the TV without using a codec that degrades image quality according to the above embodiment.
  • the various embodiments described above may be implemented as software including instructions stored in a machine-readable storage media (e.g., a computer).
  • the device is a device capable of calling instructions stored from a storage medium and operating according to the called instructions, and may include an electronic device (eg, electronic device A) according to the disclosed embodiments.
  • the processor may perform the function corresponding to the instruction directly or using other components under the control of the processor.
  • Instructions may contain code generated or executed by a compiler or interpreter.
  • a storage medium that can be read by a device may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium does not contain signals and is tangible, and does not distinguish whether the data is stored in the storage medium semi-permanently or temporarily.
  • the method according to the various embodiments described above may be included and provided in a computer program product.
  • Computer program products are commodities and can be traded between sellers and buyers.
  • the computer program product may be distributed on a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or online through an application store (e.g. Play StoreTM).
  • an application store e.g. Play StoreTM
  • at least a portion of the computer program product may be at least temporarily stored or created temporarily in a storage medium such as the memory of a manufacturer's server, an application store server, or a relay server.
  • the various embodiments described above are stored in a recording medium that can be read by a computer or similar device using software, hardware, or a combination thereof. It can be implemented in . In some cases, embodiments described herein may be implemented with a processor itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software. Each piece of software may perform one or more functions and operations described herein.
  • Non-transitory computer-readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short period of time, such as registers, caches, and memories.
  • Specific examples of non-transitory computer-readable media may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, etc.
  • each component e.g., module or program
  • each component may be composed of a single or multiple entities, and some of the sub-components described above may be omitted, or other sub-components may be omitted. Additional components may be included in various embodiments. Alternatively or additionally, some components (e.g., modules or programs) may be integrated into a single entity and perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or at least some operations may be executed in a different order, omitted, or other operations may be added. It can be.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un dispositif électronique. Le présent dispositif électronique peut comprendre une interface de communication et au moins un processeur connecté à l'interface de communication pour commander le dispositif électronique, le processeur : commandant l'interface de communication pour établir un premier canal de communication avec un premier point d'accès au moyen d'une première fréquence de communication ; reçoit des premières informations concernant une fonction de communication d'un autre dispositif électronique correspondant à une connexion P2P provenant de l'autre dispositif électronique et des secondes informations concernant un second canal de communication entre l'autre dispositif électronique et un second point d'accès ; et établit une connexion P2P avec l'autre dispositif électronique au moyen, en tant que fréquence de communication pour la connexion P2P, de la première fréquence de communication, et/ou d'une seconde fréquence de communication inférieure à la première fréquence de communication, et/ou d'une troisième fréquence de communication inférieure à la seconde fréquence de communication sur la base des premières informations et/ou des secondes informations.
PCT/KR2023/014182 2022-10-18 2023-09-19 Dispositif électronique d'établissement de connexion p2p et son procédé de commande WO2024085473A1 (fr)

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KR1020220134389A KR20240054085A (ko) 2022-10-18 2022-10-18 P2p 연결을 형성하기 위한 전자 장치 및 그 제어 방법
KR10-2022-0134389 2022-10-18

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160026866A (ko) * 2013-06-28 2016-03-09 엘지전자 주식회사 직접 통신 시스템에서 디바이스 탐색 방법 및 이를 위한 장치
US20190327740A1 (en) * 2018-04-20 2019-10-24 Qualcomm Incorporated Dual band channel bonding and puncturing
US20210185746A1 (en) * 2019-12-11 2021-06-17 Cypress Semiconductor Corporation Dedicated tdls link in off-channel 5 ghz band using rsdb
KR20220040639A (ko) * 2020-09-24 2022-03-31 삼성전자주식회사 외부 전자 장치와의 직접 통신을 위한 전자 장치 및 그의 동작 방법
KR20220067844A (ko) * 2020-11-18 2022-05-25 삼성전자주식회사 전자 장치 및 그의 동작 방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160026866A (ko) * 2013-06-28 2016-03-09 엘지전자 주식회사 직접 통신 시스템에서 디바이스 탐색 방법 및 이를 위한 장치
US20190327740A1 (en) * 2018-04-20 2019-10-24 Qualcomm Incorporated Dual band channel bonding and puncturing
US20210185746A1 (en) * 2019-12-11 2021-06-17 Cypress Semiconductor Corporation Dedicated tdls link in off-channel 5 ghz band using rsdb
KR20220040639A (ko) * 2020-09-24 2022-03-31 삼성전자주식회사 외부 전자 장치와의 직접 통신을 위한 전자 장치 및 그의 동작 방법
KR20220067844A (ko) * 2020-11-18 2022-05-25 삼성전자주식회사 전자 장치 및 그의 동작 방법

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