WO2015133819A1 - 자동 스위칭 방법 및 장치 - Google Patents
자동 스위칭 방법 및 장치 Download PDFInfo
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- WO2015133819A1 WO2015133819A1 PCT/KR2015/002092 KR2015002092W WO2015133819A1 WO 2015133819 A1 WO2015133819 A1 WO 2015133819A1 KR 2015002092 W KR2015002092 W KR 2015002092W WO 2015133819 A1 WO2015133819 A1 WO 2015133819A1
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- service
- connection
- asp
- phone
- request message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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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
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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
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
Definitions
- the present invention relates to an automatic switching method and apparatus.
- the head unit is recognized as one of the most important devices.
- the head unit is mainly located in the middle of the front seat of the vehicle.
- the head unit is a comprehensive control unit that integrates temperature control devices such as in-car air conditioners and heaters, entertainment systems, rear camera displays, and navigation systems.
- a button for operating the head unit is attached to the user handle, which in a broad sense may also be included in the scope of the head unit.
- the user controls various in-vehicle devices through the head unit before starting driving, and during driving and ending the driving time.
- the present invention provides a method and apparatus for seamlessly switching from a mobile phone in a home to a head unit in a car through a Wi-Fi connection mode without a user's operation.
- the present invention provides a method and apparatus for efficiently performing a discovery procedure by setting service information in advance.
- a method for automatically switching in a first device comprising: performing, by the first device, a terminal discovery process and a service discovery operation with a second device; Receiving a connection request message including a persistent connection field and an autoconnect mode from the second device; Providing a specific service to the second device based on the information included in the connection request message, wherein the persistent connection field includes a service identifier.
- the first device performs the terminal discovery process and service discovery operation with the second device, and the continuous connection field and automatic from the second device Receiving a connection request message including a connection mode, and providing a specific service to the second device based on the information included in the connection request message, wherein the persistent connection field includes a service identifier do.
- a method for automatically switching in a second device comprising: performing, by the second device, a terminal discovery process and a service discovery operation with a first device; Transmitting from the second device a connection request message including a persistent connection field and an autoconnect mode; Receiving a specific service from the first device based on the information included in the connection request message, wherein the persistent connection field includes a service identifier.
- An apparatus in the automatic switching device in a second device, the second device performs a terminal discovery process and service discovery operation with the first device, and the continuous connection field and automatic from the second device And a control unit for transmitting a connection request message including a connection mode and receiving the first device rotor specific service based on information included in the connection request message, wherein the persistent connection field includes a service identifier.
- Wi-Fi display (WFD) system 1 is a structural diagram of a Wi-Fi display (WFD) system
- FIG. 2 is a flowchart showing a process of setting a WFD
- FIG. 3 is a flowchart illustrating an automatic switching method according to a first embodiment of the present invention
- FIG. 4 is a flowchart showing the continuous operation of FIG. 3 according to the first embodiment of the present invention.
- FIG. 5 is a flow chart showing the combination of FIGS. 3 and 4 in accordance with a first embodiment of the present invention
- FIG. 6 is a flowchart illustrating an automatic switching method according to a second embodiment of the present invention.
- FIG. 7 is a flowchart illustrating an automatic switching method according to a third embodiment of the present invention.
- FIG. 8 is a flowchart illustrating an automatic switching method according to a fourth embodiment of the present invention.
- 9A and 9B are flowcharts illustrating a discovery method according to another embodiment of the present invention.
- FIG. 10 is a flowchart illustrating a discovery method according to another embodiment of the present invention.
- FIG. 11 is a flowchart illustrating a discovery method according to another embodiment of the present invention.
- FIG. 13 is a block diagram of a device according to an embodiment of the present invention.
- a phone, a mobile phone, a mobile phone, and a smart phone to be described below are portable phones, wi-fi, 3G, LTE, etc. phones, which can be installed on the application, but are not limited thereto.
- a combination of a phone, a mobile phone, a mobile phone, and a smart phone will be described.
- the present invention provides a network connection (eg, wired, wireless, etc.) between a head unit of a vehicle and a mobile phone, controls the function of the mobile phone through the head unit, and mirrors for transmitting the UI of the mobile phone to the head unit.
- a network connection eg, wired, wireless, etc.
- Wi-Fi display (WFD) system is a structural diagram of a Wi-Fi display (WFD) system.
- the WFD system is composed of a WFD Source 100 (hereinafter referred to as a phone) and a WFD Sink Device 120 (hereinafter referred to as IVI), which is displayed on the display of the WFD Source Device 100 and reproduced.
- the audio content is transmitted to the WFD Sink device 120 in real time.
- the WFD Source Device 100 is a mobile phone and the WFD Sink Device 120 is a TV
- the user may control the UI through the WFD Source Device 100 or the WFD Sink Device 120.
- the user input may be a WFD Sink Device.
- it is delivered to the WFD Source Device 100.
- FIG. 2 is a flowchart illustrating a process of setting a WFD.
- the WFD Source Device discovers a device (eg, a WFD Sink Device) supporting WFD through the WFD Device Discovery process 201 and checks additional information through the WFD Service Discovery process 203. Subsequently, the WFD Source Device establishes an IP (Internet Protocol) and a Transmission Control Protocol (TCP) channel through a WFD connection setup process 205 and performs a WFD Capability Negotiation process 207 with a Real Time Streaming Protocol (RTSP) protocol. Through. Thereafter, after the WFD source device establishes a WFD session through the RTSP protocol (209), the WFD Sink Device 120 can control the WFD Source Device (100) to control the User Input Back Channel (UIBC) through the RTSP protocol. After the WFD Source Device goes through the Link Content Protection process 213 through the RTSP protocol to protect the channel during data transmission, the WFD Source Device 100 sets the content of the WFD Source Device 100 to the WFD Sink Device 120. (215, 217)
- IP Internet Protocol
- TCP Transmission Control Protocol
- the user wants to communicate with the head unit in the car in the user's home. At this time, the user wants to seamlessly switch from the mobile phone in the house to the head unit in the car. At this time, the user wants to switch from the mobile phone in the house to the head unit in the car through the Wi-Fi connection mode without the user's operation.
- the present invention provides a method and apparatus for seamlessly switching from a mobile phone in a home to a head unit in a car through a Wi-Fi connection mode without a user's operation.
- the first embodiment of the present invention shows a switching method in the case of WFDS (Figs. 3 to 5), and the second embodiment of the present invention shows a switching method when connected to a NAN network (Fig. 6).
- the third embodiment shows a method of switching via NFC (FIG. 7), and the fourth embodiment of the present invention shows a method of switching via Bluetooth (FIG. 8).
- the present invention is applicable to all communication methods using near field communication.
- FIG. 3 is a flowchart illustrating an automatic switching method according to a first embodiment of the present invention.
- FIG. 3 The overall operation of FIG. 3 will be referred to as an initial association operation.
- the smartphone area includes a phone (where a phone means a mobile phone, a mobile phone, a smart phone, etc.) and a first application service platform (ASP), and the car environment includes a second ASP and an IVI ( In Vehicle Infotainment (IVI).
- Phone means WFD Source Device
- IVI means WFD Sink Device.
- the first ASP refers to the ASP layer in the phone
- the second ASP refers to the ASP layer in the IVI.
- the phone transmits an advertisement message including the service () or the specific service name to the first ASP in step 301.
- the advertisement message may further include a message identifier, contact information, an identifier of the terminal, and the like.
- the IVI sends a Seek message including the service () or the service name to the second ASP in step 303.
- the first ASP discovers a device supporting WFD (eg, a WFD Sink Device) through a device discovery process, and discovers a service supporting WFD through a WFD service discovery process in step 307.
- a device supporting WFD eg, a WFD Sink Device
- the second ASP sends the result found in step 309 (ie, the search result) to the IVI.
- the IVI then sends a connection session message, including persistent_connection, auto-connect mode, to the second ASP in step 311.
- the persistent connection is used to initialize a P2P persistent connection, maintain a service context for a specific service connection, and map a persistent P2P group to a service context.
- the persistent connection includes a service identifier.
- the auto-connect mode is used to request that a specific service be automatically connected to the phone, i.e., to enter the auto-connect state.
- step 313 the first ASP and the second ASP are connected. Thereafter, the first ASP transmits a connection request message to the phone in step 315.
- the phone then sends a set_auto_accept message to the first ASP to set the auto accept mode for the particular service to the first ASP, not the other device, in step 317.
- the phone and IVI then map the P2P persistent group and service ID, as in step 319 and step 321.
- FIG. 4 is a flowchart illustrating the continuous operation of FIG. 3 according to the first embodiment of the present invention.
- FIG. 4 illustrates a process of setting up a WFD when a phone existing in a home network moves into a car environment.
- the IVI may search fixed smartphones and search fixed services and persistent services when the car engine is started or the network stack is initially triggered in step 403. If the phone is not available, the IVI searches for Ts (search time) and then goes to sleep.
- the IVI can alternatively maintain the reception strength (eg, RSSI) based on the rules for triggering the switching mode or handover.
- the IVI transmits a probe request message including service_hash and persistent_service_ID to the phone in the car.
- service_hash uses a hash value or a hash index of service ID identification information to quickly search for a service.
- persistent_service_ID represents an ID of a specific service (eg, an Internet service).
- the phone transmits a probe response message including the name of the specific service (service_name) and persistent_service_ID to the IVI.
- the ASP of all devices triggers the corresponding persistent P2P, the corresponding service, and the context of the service based on the stored configuration information.
- the IVI transmits a PD request message including the groom information and the persistent_service_ID to the phone.
- the phone sends a PD response message including persistent_service_ID to the IVI in step 413.
- the IVI and pawn automatically form assiciation with the group in step 415.
- the assiciation can be formed according to the network state, device capability, and service state.
- FIG. 5 is a flowchart summarizing FIGS. 3 and 4 according to a first exemplary embodiment of the present invention.
- FIG. 5 is similar to FIGS. 3 and 4. Steps 501 to 519 of FIG. 5 are the same as steps 301 to 321 of FIG. 3.
- step 521 the user of the phone enters the car, turns on the car or operates the IVI system.
- the IVI and the second ASP are then placed in the autoconnect mode at step 523.
- the second ASP transmits a probe request message including “InCarInternetService” and PersistentServiceID to the first ASP.
- the first ASP sends a probe response message including a PersistentServiceID in step 527.
- Step 531 may be optionally performed.
- the second ASP transmits a provision discovery (PD) request message including a PersistentGroupID to the first ASP, and the first ASP transmits a PD response message to the second ASP in step 535.
- the first ASP and the second ASP are group association.
- FIG. 6 is a flowchart illustrating an automatic switching method according to a second embodiment of the present invention. That is, FIG. 6 is a flowchart illustrating an automatic switching method using a network (eg, Neighbor Aware Network: NAN) based on a low power discovery protocol for IVI and a phone in a vehicle.
- a network eg, Neighbor Aware Network: NAN
- the IVI consists of a first ASP based on the application layer and the NAN.
- the phone consists of a second ASP and a service layer based on the NAN.
- Steps 601 to 617 of FIG. 6 have the same operation contents as those of steps 301 to 321 of FIG. 3, and different operation subjects.
- the first ASP and the second ASP exchange NAN cluster information.
- the NAN cluster information includes channel information, DW timing, name, and the like.
- the second ASP transmits a subsctibe message including “InCarInternetService” and Persistent_Service_ID to the first ASP.
- the phone may alternatively maintain a reception strength (eg, RSSI) based on a rule for triggering a NAN message (or handover).
- step 621 the user of the phone enters the car, start the car or operate the IVI system.
- the NAN MAC layer of the phone sends a Publish message containing service information and PersistentGroupID in step 623 to the NAN MAC layer of the IVI
- the NAN MAC layer of the IVI sends a notification message in step 625 to the second ASP based on the NAN in the IVI.
- the service information may be, for example, in-use or no-use. That is, the service information may be obtained through the service discovery process of what the service is provided by the device.
- the second ASP based on the NAN requests to invoke a service to the application layer of the IVI.
- step 629 the second ASP based on the NAN triggers persistent group connection using the ASP as the first ASP based on the NAN of the phone. Then, group as000iation is performed between the first ASP based on the NAN and the second ASP based on the NAN.
- FIG. 7 is a flowchart illustrating an automatic switching method according to a third embodiment of the present invention. That is, FIG. 7 is a flowchart illustrating an automatic switching method when a phone in a car connects IVI to NFC.
- NFCintent information (eg, PrsistentGroupInfo, servicehash information, etc.) is stored in the second ASP and the second NFC in the car environment.
- NFC intent information (eg, PrsistentGroupInfo, servicehash information, etc.) is stored in the first ASP and the first NFC in the phone.
- NFCintent information includes information about what type of PrsistentGroup to create.
- NFCintent information further includes service_intent.
- service_intent means a 6 octet service hash value corresponding to the car internet service provided by the phone.
- PrsistentGroupInfo includes P2P group information and includes an identifier.
- the NFC tap is exchanged between the first NFC and the second NFC in step 705.
- the second NFC transmits an event message to the second ASP in step 707.
- the first NFC transmits an event message to the first ASP in step 709.
- the second ASP is a group association is made of the first NFC. If a group association is made, the first ASP starts a persistent GO (group owner) in step 713.
- the second ASP connects the second ASP of the IVI to the application layer of the IVI, and the first ASP in the phone transmits a ServiceInvocation message to the service layer of the phone.
- the IVI and the phone may transmit and receive data.
- FIG. 8 is a flowchart illustrating an automatic switching method according to a fourth embodiment of the present invention. That is, FIG. 8 is a flowchart illustrating an automatic switching method when a phone in a car connects IVI to Bluetooth (or wireless LAN).
- Steps 801 to 817 of FIG. 8 are the same as operations 301 to 321 of FIG. 3.
- the first ASP and the second ASP exchange Bluetooth information including a scan parameter.
- the Bluetooth layer of the phone performs a GAP device discovery process between the Bluetooth layers of the IVI.
- the GAP device discovery message includes “InCarInternetService” and PersistentServiceID.
- step 821 the user of the phone enters the car, starts the car, activates the IVI system, or succeeds in GAP.
- the Bluetooth layer of the phone then sends a response message to the Bluetooth layer of the IVI in step 823.
- the response message includes service information and PersistentServiceGroup.
- the Bluetooth layer of the IVI sends a notification message to the second ASP based on Bluetooth in the IVI in step 825.
- the second ASP based on Bluetooth requests to invoke a service to the application layer of the IVI.
- the second ASP based on Bluetooth triggers persistent group connection using the ASP as the first ASP based on Bluetooth of the phone. Then, a group association is performed between the first ASP based on Bluetooth and the second ASP based on Bluetooth.
- 9A and 9B are flowcharts illustrating a discovery method according to another exemplary embodiment.
- Steps 901 to 923 indicate a case of using Wi-Fi
- steps 925 to 947 indicate a case of using WFDS.
- mobile 2 represents a phone
- H / U represents a head unit
- R / S represents a displayable near field device that is present in the vicinity of the head unit in the vehicle.
- R / S is hereinafter referred to as a short range device.
- the phone When using the WFDS, the phone transmits a probe request message including the service hash to the head unit in step 925 and a probe request message including the service hash to the local device in step 927. Thereafter, the head unit and the short range device transmit a probe response message to the phone (step 929 and step 931).
- the probe response message includes com.automotive.p2p, com.automotive.gallery, com.automotive.mirrorlink, and the like.
- a new service name may be defined in P2P SD (Service Discovery), and the service may be provided based on an application or a Wi-Fi mode.
- the phone transmits a Generic Advertisement Service (GAS) request message including com.automotive. * To the head unit in step 933, and transmits a GAS request message including com.automotive. * To the local area device in step 935.
- GAS Generic Advertisement Service
- the GAS request message may be transmitted in the form of a GAS action frame.
- the GAS action frame includes an Access Network Query Protocol (ANQP) field.
- ANQP Access Network Query Protocol
- the GAS action frame includes an access network type (eg, private network, free public network, for-fee public network, etc.), roaming consortium, venue information, and the like.
- access network type eg, private network, free public network, for-fee public network, etc.
- the head unit and the short range device transmit a probe response message to the phone (steps 937 and 939).
- the probe response message includes com.automotive.mirrorlink, unavailable, and the like. By doing so, service availability can be managed in the car.
- the phone transmits a Provision Discovery Request including name-picture: size-200K to the head unit in step 943, and transmits a Provision Discovery Request including name-picture: size-200K to the short range device in step 945.
- the head unit and the short range device transmit a provision discovery response including state information to the phone (steps 945 and 947).
- FIG. 10 is a flowchart illustrating a discovery method according to another embodiment of the present invention.
- step 1000 of FIG. 10 when the ASP of the IVI transmits a P2P probe request message including a service hash to the ASP of the phone, the ASP of the phone transmits a P2P probe response message including the service name (s) and advertisementID.
- the phone recognizes what services are provided through a particular device (eg, IVI device, near field device, etc.) before association. To do this, define a new service name and indicate whether it is single or multi-service.
- a particular device eg, IVI device, near field device, etc.
- a service can be a service for one application and a general service used by many applications.
- the service name can be a unique name. You can predefine services in new service and Wi-Fi modes. For example, a service can be defined as shown in Table 1 below.
- the receiver may transmit a probe response message with the listed information.
- FIG. 11 is a flowchart illustrating a discovery method according to another embodiment of the present invention.
- the phone recognizes the application process in operation, content for a particular device (eg, IVI device, near field device, etc.).
- a particular device eg, IVI device, near field device, etc.
- step 11 is the same as step 1000 of FIG. 10.
- the P2P service discovery process is performed between the ASP of the phone and the ASP of the IVI.
- the P2P service discovery request message includes a service name and a service information request
- the P2P service discovery response message includes a service name, advertisementID, and service status.
- FIG. 12 is a flowchart illustrating a discovery method according to another embodiment of the present invention.
- FIG. 12 further adds 1200 steps to FIG. 11.
- a P2P provision discovery process is performed between the ASP of the phone and the ASP of the IVI.
- the timer is driven and the P2P provisioning discovery response message includes status information.
- the P2P provision discovery request message having the session information data information attribute value may be indicated in the P2P IE.
- the session information data is a string for explaining the content to be reproduced to a long distance user.
- the play service-session_information format may be represented, for example, as shown in [Table 4] below.
- FIG. 13 is a block diagram illustrating a device according to an embodiment of the present invention.
- the tea environment consists of the phone 1300 and the IVI 1350.
- the phone 1300 includes a transmitter 1316, a receiver 1314, a controller 1312, and an ASP 1318.
- the controller 1312 controls the overall operation of the phone.
- the controller 1312 controls the phone to perform an overall operation for switching to the automatic connection mode according to an embodiment of the present invention. Since the detailed operation is the same as described with reference to FIGS. 3 to 12, the detailed description thereof will be omitted.
- the transmitter 1316 transmits various signals and various messages to the IVI under the control of the controller 1312.
- various signals and various messages transmitted by the transmitter 1316 are the same as those described with reference to FIGS. 3 to 12, and thus detailed description thereof will be omitted.
- the receiver 1314 receives various signals, various messages, and the like from the IVI under the control of the controller 1312.
- the various signals and the various messages received by the receiver 1314 are the same as those described with reference to FIGS. 3 to 12, and thus detailed description thereof will be omitted.
- the ASP 1318 refers to an ASP layer in the phone, processes data received from an application layer in the phone, and performs an overall operation for switching to the autoconnect mode with the IVI 1350.
- the IVI 1350 is composed of a transmitter 1356, a receiver 1354, a controller 1352, and an ASP 1358.
- the controller 1352 controls the overall operation of the IVI.
- the controller 1352 controls the IVI to perform an overall operation for switching to the automatic connection mode according to an embodiment of the present invention. Since the detailed operation is the same as described with reference to FIGS. 3 to 12, the detailed description thereof will be omitted.
- the transmitter 1356 transmits various signals, various messages, and the like to a phone under the control of the controller 1352.
- various signals and various messages transmitted by the transmitter 1356 are the same as those described with reference to FIGS. 3 to 12, and thus, detailed description thereof will be omitted.
- the receiver 1354 receives various signals, various messages, and the like from the phone under the control of the controller 1352.
- the various signals and the various messages received by the receiver 1354 are the same as those described with reference to FIGS. 3 to 12, and thus, detailed description thereof will be omitted.
- the ASP 1358 refers to an ASP layer in the IVI, processes data received from the application layer in the IVI, and performs an overall operation for switching to the autoconnect mode to the phone 1300.
- any such software may be, for example, volatile or nonvolatile storage, such as a storage device such as a ROM, whether or not removable or rewritable, or a memory such as, for example, a RAM, a memory chip, a device or an integrated circuit. Or, for example, on a storage medium that is optically or magnetically recordable, such as a compact disk (CD), DVD, magnetic disk or magnetic tape, and which can be read by a machine (eg computer). have.
- volatile or nonvolatile storage such as a storage device such as a ROM, whether or not removable or rewritable, or a memory such as, for example, a RAM, a memory chip, a device or an integrated circuit.
- a storage medium that is optically or magnetically recordable such as a compact disk (CD), DVD, magnetic disk or magnetic tape, and which can be read by a machine (eg computer). have.
- the method according to an embodiment of the present invention may be implemented by a computer or a portable terminal including a control unit and a memory, wherein the memory is suitable for storing a program or programs including instructions for implementing embodiments of the present invention. It will be appreciated that this is an example of a machine-readable storage medium.
- the present invention includes a program comprising code for implementing the apparatus or method described in any claim herein and a storage medium readable by a machine (such as a computer) storing such a program.
- a machine such as a computer
- such a program can be transferred electronically through any medium, such as a communication signal transmitted over a wired or wireless connection, and the invention suitably includes equivalents thereof.
- the apparatus may receive and store the program from a program providing apparatus connected by wire or wirelessly.
- the program providing apparatus includes a memory for storing a program including instructions for causing the program processing apparatus to perform a preset automatic switching method, information required for the automatic switching method, and the like, and wired or wireless communication with the graphic processing apparatus.
- a communication unit for performing and a control unit for automatically transmitting the program or the corresponding program to the request or the graphics processing unit.
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Abstract
Description
값 | 의미 |
0 | 모든 서비스 프로토콜 타입 |
1 | 봉쥬르(bonjour) |
2 | UPnP |
3 | WS-Discovery |
4 | Wi-Fi Display |
5-254 | reserved |
255 | vendor specific |
afpovertcp._tcp.local _ipp._tcp.local |
0x10 urn:schemas-upnp-org:device:InternetGatewayDevice:10x10 upnp:rootdevice |
name-<value>:duration-<value>:size-<value>:numberOfItems-<value>, ex. name-superman returns:duration-9240 |
Claims (12)
- 제1 디바이스에서 자동 스위칭 방법에 있어서,상기 제1 디바이스가 제2 디바이스와 단말 디스커버리 과정 및 서비스 디스커버리 동작을 수행하는 과정;상기 제2 디바이스로부터 지속적인 연결 필드 및 자동연결모드를 포함하는 연결 요청 메시지를 수신하는 과정;상기 연결 요청 메시지에 포함된 정보를 근거로 하여, 상기 제2 디바이스로 특정 서비스를 제공하는 과정을 포함하고,상기 지속적인 연결 필드는 서비스 식별자를 포함함을 특징으로 하는 자동 스위칭 방법.
- 제1항에 있어서,상기 자동연결모드는 차에 시동이 켜지면, 상기 제1 디바이스로 자동적으로 연결할 수 있도록 요청하는 모드임을 특징으로 하는 자동 스위칭 방법.
- 제1항에 있어서,상기 지속적인 연결 필드를 근거로, P2P 지속적인 그룹과 상기 서비스 식별자를 매핑하는 과정을 더 포함함을 특징으로 하는 자동 스위칭 방법.
- 제1항에 있어서, 상기 연결 요청 메시지를 수신한 후에, 상기 제2 디바이스로 특정 서비스를 제공하도록 자동연결설정수락 메시지를 상기 제2 디바이스로 전송하는 과정을 더 포함함을 특징으로 하는 자동 스위칭 방법.
- 제1 디바이스에서 자동 스위칭 장치에 있어서,상기 제1 디바이스가 제2 디바이스와 단말 디스커버리 과정 및 서비스 디스커버리 동작을 수행하고, 상기 제2 디바이스로부터 지속적인 연결 필드 및 자동연결모드를 포함하는 연결 요청 메시지를 수신하고, 및 상기 연결 요청 메시지에 포함된 정보를 근거로 하여, 상기 제2 디바이스로 특정 서비스를 제공하는 제어부를 포함하고,상기 지속적인 연결 필드는 서비스 식별자를 포함함을 특징으로 하는 자동 스위칭 장치.
- 제5항에 있어서,상기 자동연결모드는 차에 시동이 켜지면, 상기 제1 디바이스로 자동적으로 연결할 수 있도록 요청하는 모드임을 특징으로 하는 자동 스위칭 장치.
- 제5항에 있어서,상기 제어부는 상기 지속적인 연결 필드를 근거로, P2P 지속적인 그룹과 상기 서비스 식별자를 매핑하도록 더 구성됨을 특징으로 하는 자동 스위칭 장치.
- 제5항에 있어서, 상기 제어부는 상기 연결 요청 메시지를 수신한 후에, 상기 제2 디바이스로 특정 서비스를 제공하도록 자동연결설정수락 메시지를 상기 제2 디바이스로 전송하도록 더 구성됨을 특징으로 하는 자동 스위칭 장치.
- 제2 디바이스에서 자동 스위칭 방법에 있어서,상기 제2 디바이스가 제1 디바이스와 단말 디스커버리 과정 및 서비스 디스커버리 동작을 수행하는 과정;상기 제2 디바이스로부터 지속적인 연결 필드 및 자동연결모드를 포함하는 연결 요청 메시지를 전송하는 과정;상기 연결 요청 메시지에 포함된 정보를 근거로 하여, 상기 제1 디바이스로터 특정 서비스를 수신하는 과정을 포함하고,상기 지속적인 연결 필드는 서비스 식별자를 포함함을 특징으로 하는 자동 스위칭 방법.
- 제9항에 있어서,상기 자동연결모드는 차에 시동이 켜지면, 상기 제1 디바이스로 자동적으로 연결할 수 있도록 요청하는 모드임을 특징으로 하는 자동 스위칭 방법.
- 제2 디바이스에서 자동 스위칭 장치에 있어서,상기 제2 디바이스가 제1 디바이스와 단말 디스커버리 과정 및 서비스 디스커버리 동작을 수행하고, 상기 제2 디바이스로부터 지속적인 연결 필드 및 자동연결모드를 포함하는 연결 요청 메시지를 전송하고, 연결 요청 메시지에 포함된 정보를 근거로 하여, 상기 제1 디바이스로터 특정 서비스를 수신하는 제어부를 포함하고,상기 지속적인 연결 필드는 서비스 식별자를 포함함을 특징으로 하는 자동 스위칭 장치.
- 제11항에 있어서,상기 자동연결모드는 차에 시동이 켜지면, 상기 제1 디바이스로 자동적으로 연결할 수 있도록 요청하는 모드임을 특징으로 하는 자동 스위칭 장치.
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EP3115261A4 (en) | 2017-11-15 |
CN106068208A (zh) | 2016-11-02 |
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