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WO2015180591A1 - 终端切换方法、接入设备、终端及系统 - Google Patents

终端切换方法、接入设备、终端及系统 Download PDF

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Publication number
WO2015180591A1
WO2015180591A1 PCT/CN2015/079623 CN2015079623W WO2015180591A1 WO 2015180591 A1 WO2015180591 A1 WO 2015180591A1 CN 2015079623 W CN2015079623 W CN 2015079623W WO 2015180591 A1 WO2015180591 A1 WO 2015180591A1
Authority
WO
WIPO (PCT)
Prior art keywords
access device
terminal
connection
authentication
switched
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/CN2015/079623
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English (en)
French (fr)
Inventor
董明杰
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies 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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to BR112016027633-7A priority Critical patent/BR112016027633B1/pt
Publication of WO2015180591A1 publication Critical patent/WO2015180591A1/zh
Priority to US15/361,104 priority patent/US9794734B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06Authentication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50Secure pairing of devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/023Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60Context-dependent security
    • H04W12/63Location-dependent; Proximity-dependent
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/18Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a terminal handover method, an access device, a terminal, and a system.
  • the terminal can also switch between multiple mobile wireless access devices in the vicinity. For example, the terminal accesses a wireless local area network (WLAN) through a mobile wireless access device, and when the wireless access device needs to switch the accessed terminal to another access device, the terminal can access the accessed terminal. After the handover notification is sent, the terminal queries and accesses other wireless access devices that are accessible in the vicinity after receiving the handover notification.
  • WLAN wireless local area network
  • the location of the mobile wireless access device is not fixed.
  • the terminal switches from one wireless access device to another wireless access device, it is likely to access a relatively distant access device, thereby affecting the terminal switching access. Communication performance and user experience after the device.
  • the embodiment of the present invention provides a terminal switching method. , access equipment, terminals and systems.
  • the technical solution is as follows:
  • a terminal handover method includes:
  • the first access device When the distance between the first access device and the second access device is in close proximity wireless communication NFC When the connection is within the range, the first access device establishes an NFC connection with the second access device;
  • the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the method further includes:
  • the method further includes:
  • connection success response is used to indicate that the to-be-switched terminal revokes the first connection with the second access device.
  • a second aspect provides a terminal handover method, where the method includes:
  • the second access device When the distance between the first access device and the second access device is within the connection range of the short-range wireless communication NFC, the second access device establishes an NFC connection with the first access device;
  • the second access device sends the authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device, where
  • the authentication parameter is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the method further includes:
  • the method further includes:
  • the first connection with the to-be-switched terminal is revoked.
  • a third aspect provides a terminal handover method, where the method includes:
  • the to-be-switched terminal sends an authentication request to the first access device, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device, and the authentication request is used to indicate that the first access device is authenticated according to the authentication.
  • the parameter performs access authentication on the to-be-switched terminal, where the authentication parameter is a parameter that is sent by the second access device to the first access device by using a short-range wireless communication NFC connection;
  • the to-be-switched terminal After the first access device is successfully authenticated, the to-be-switched terminal establishes a second connection with the first access device.
  • the method further includes:
  • a fourth aspect provides an access device, where the access device includes:
  • a first connection establishing module configured to establish an NFC connection with the second access device when the distance between the second access device and the second access device is within a connection range of the short-range wireless communication NFC;
  • An authentication parameter receiving module configured to receive an authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device;
  • a request receiving module configured to receive an authentication request sent by the to-be-switched terminal
  • An authentication module configured to perform access authentication on the to-be-switched terminal according to the authentication parameter
  • the second connection establishing module is configured to establish a second connection with the to-be-switched terminal after the authentication of the authentication module is successful.
  • the access device further includes:
  • a channel parameter receiving module configured to receive, before the second connection establishing module establishes a second connection with the to-be-switched terminal, a channel parameter that is sent by the second access device by using the NFC connection, where the channel parameter is Access channel parameters of the to-be-switched terminal;
  • the second connection establishing module is configured to establish the second connection with the to-be-switched terminal according to the channel parameter.
  • the first access device further includes:
  • the response sending module is configured to send a connection success response to the to-be-switched terminal, where the connection success response is used to indicate that the to-be-switched terminal revokes the first connection with the second access device.
  • an access device including:
  • a third connection establishing module configured to establish an NFC connection with the first access device when the distance between the first access device and the first access device is within a connection range of the short-range wireless communication NFC;
  • An authentication parameter sending module configured to send, by using the NFC connection, an authentication parameter of the to-be-switched terminal to the first access device, where the to-be-switched terminal is a terminal that has established a first connection with the third connection establishing module,
  • the authentication parameter is used to indicate that the first access device is configured according to the authentication parameter
  • the terminal to be switched performs access authentication and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the access device further includes:
  • a channel parameter sending module configured to send a channel parameter to the first access device by using the NFC connection, where the channel parameter is an access channel parameter of the to-be-switched terminal.
  • the second access device further includes:
  • the first revocation module is configured to revoke the first connection with the to-be-switched terminal after the first access device establishes the second connection with the to-be-switched terminal.
  • a terminal where the terminal includes:
  • a request sending module configured to send an authentication request to the first access device, where the authentication request is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, where the authentication parameter is a parameter that is sent by the second access device to the first access device by using a short-range wireless communication NFC connection;
  • a fourth connection establishing module configured to establish a second connection with the first access device after the first access device is successfully authenticated.
  • the terminal further includes:
  • the response receiving module is configured to receive a connection success response sent by the first access device.
  • a terminal switching system comprising:
  • the first access device, the second access device, and the at least one terminal as described above.
  • the connection is established with the terminal to be switched. Since the distance between the NFC connection is relatively short, usually within one meter, when the distance between the first access device and the second access device is within the NFC connection range, it indicates The distance between the first access device and the second access device is small, which solves the problem that when the terminal switches from one wireless access device to another wireless access device in the prior art, it is likely to access a relatively distant location. The problem of the access device achieves the effect of improving the communication performance and user experience after the terminal switches the access device.
  • FIG. 1 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an access device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an access device according to another embodiment of the present invention.
  • FIG. 10 is a structural diagram of a device of an access device according to an embodiment of the present invention.
  • FIG. 11 is a device configuration diagram of an access device according to another embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of an access device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an access device according to another embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of an access device according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of an access device according to another embodiment of the present invention.
  • FIG. 16 is a structural diagram of a device of a terminal according to an embodiment of the present invention.
  • FIG. 17 is a device configuration diagram of a terminal according to another embodiment of the present invention.
  • FIG. 18 is a structural diagram of a device of a terminal according to an embodiment of the present invention.
  • FIG. 19 is a device configuration diagram of a terminal according to another embodiment of the present invention.
  • FIG. 20 is a block diagram of a smart phone according to an embodiment of the present invention.
  • FIG. 21 is a system configuration diagram of a terminal switching system according to an embodiment of the present invention.
  • NFC Near Field Communication
  • RFID Radio Frequency Identification
  • FIG. 1 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • the terminal accessing the second access device needs to switch from the second access device to the other access device, the connection between the terminal and the to-be-switched terminal is established, and the terminal is switched.
  • Methods can include:
  • Step 102 When the distance between the first access device and the second access device is within the connection range of the short-range wireless communication NFC, the first access device establishes an NFC connection with the second access device.
  • Step 104 The first access device receives the authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, and the to-be-switched terminal is a part or all of the terminals that establish the first connection with the second access device.
  • Step 106 The first access device receives an authentication request sent by the terminal to be switched.
  • Step 108 The first access device performs access authentication on the handover terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the terminal switching method establishes a short-range wireless communication NFC connection between the first access device and the second access device, and receives the to-be-switched transmission sent by the second access device through the NFC connection.
  • the authentication parameter of the terminal establishes a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter. Since the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access device are connected When the distance between the ingress devices is within the connection range of the NFC, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When the wireless access device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the second access device has sent the authentication parameter of the to-be-switched terminal to the first access device, and the negotiation between the terminal and the first access device is reduced. Make the switching process smoother.
  • FIG. 2 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • the terminal accessing the second access device needs to switch from the second access device to the other access device, the connection between the terminal and the terminal to be switched is established.
  • the first access device The standby device and the second access device are mobile wireless access devices, such as a Wi-Fi robot or a wireless access point AP.
  • the terminal switching method may include:
  • Step 202 When the distance between the first access device and the second access device is within the connection range of the short-range wireless communication NFC, the first access device establishes an NFC connection with the second access device.
  • the first access device and the second access device may be free according to information such as the number and distribution of the access terminals.
  • the location is adjusted to provide better network access services to each terminal, and the movement of each access device can be controlled by a separate controller, which can be placed on the base station side connected to each access device.
  • a separate controller which can be placed on the base station side connected to each access device.
  • several terminals have established a Wi-Fi connection with the second access device, and the second access device provides the network access service for the terminal through the established Wi-Fi connection.
  • the second access device may request the controller to switch the terminal accessing the second access device to another access device.
  • the controller After receiving the request, the controller determines that the first access device is the destination access device for the terminal to switch, and notifies the first access device to move to the location of the second access device according to the specified path, and simultaneously, the first access device And the second access device starts the NFC pairing detection.
  • the distance between the two is within the connection range of the NFC
  • one of the two can detect the NFC pairing signal sent by the other party, and the first access device can It is determined that the access terminal has been reached, and the handover of the access terminal can be performed.
  • the second access device requests the controller to switch the terminal to another access device
  • the identifier of the first access device returned by the controller is received, and the NFC pairing signal is periodically received, and the received pairing signal is included.
  • the device identifier is compared with the identifier of the first access device. If the two are consistent, the device that sends the NFC pairing signal is the first access device, and interacts with the first access device to establish an NFC connection.
  • Step 204 The first access device receives the authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device.
  • the first connection may be a Wi-Fi connection established between the to-be-switched terminal and the second access device.
  • the to-be-switched terminal When the second access device is in a low-power state, the to-be-switched terminal may be all terminals that establish a Wi-Fi connection with the second access device, and when the second access device access terminal has excessive shunting, The to-be-switched terminal may be a part of terminals specified in all terminals that establish a Wi-Fi connection with the second access device.
  • the authentication parameter may be used to perform identity authentication on the handover terminal.
  • the authentication parameter may be a PMK (Pairwise Master Key), a PTK (Pairwise Transient Key), or a GTK (Group Temporal Key).
  • the specific content of the authentication parameter is not specifically limited in this embodiment.
  • Step 206 The first access device receives an authentication request sent by the terminal to be switched.
  • the authentication request of the terminal to be switched may be triggered by the first access device or triggered by the second access device. Specifically, after the first access device and the second access device establish an NFC connection, and the second access device receives the authentication parameter sent by the first access device through the NFC connection, the second access device may go to the terminal to be switched. Sending a handover notification that includes the identifier of the first access device, and after the handover terminal receives the handover notification, sending an authentication request to the first access device; or the authentication parameter may carry the identifier of the terminal to be switched.
  • the first access device can switch to the to-be-switched terminal according to the identifier of the terminal to be switched.
  • the terminal sends a handover notification, and after the handover terminal receives the handover notification, sends an authentication request to the first access device.
  • Step 208 The first access device performs access authentication on the handover terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the second connection may be a Wi-Fi connection established between the to-be-switched terminal and the first access device.
  • the terminal may determine that the terminal needs to be handed over from the second access device to the first access device.
  • a Wi-Fi connection can be established with the terminal at this time, and the network access service is provided for the terminal instead of the second access device.
  • the first access device may further receive a channel parameter that is sent by the second access device by using the NFC connection, where the channel parameter is an access channel parameter used by the to-be-switched terminal to access the second access device;
  • a second connection may be established with the terminal to be switched according to the channel parameter.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established, so that the to-be-switched terminal can seamlessly switch to the first access device, and the second access device
  • the access channel parameter of the terminal to be switched to access the second access device may be sent to the first access device by using an NFC connection, where the channel parameter may be a working channel of the terminal to be switched, a channel bandwidth, etc., the first access device
  • the switching notification may be sent to the to-be-switched terminal according to the channel parameter, so as to notify the to-be-switched terminal to send an authentication request, or directly establish a Wi-Fi connection with the to-be-switched terminal according to the channel parameter, so that the to-be-switched terminal can continue to use the original The working channel to access the network.
  • Step 210 The first access device sends a connection success response to the to-be-switched terminal, where the connection success response is used to indicate that the to-be-switched terminal revokes the first connection with the second access device.
  • the first access device may send a connection success response to the to-be-switched terminal, and the to-be-switched terminal may pass between the first access device and the first access device. Wi-Fi connection to access the network.
  • the to-be-switched terminal also interacts with the second access device to revoke the Wi-Fi connection between the terminal and the second access device, thereby completing the handover from the second access device to The process of the first access device.
  • the terminal to be switched when the terminal to be switched successfully establishes a connection with the first access device, and the connection with the second access device has not been revoked, the terminal to be switched accesses the two access devices simultaneously through the same working channel.
  • the data to be transmitted by the first access device and the second access device may be received by the first access device and the second access device, and the first access device and the second access device may receive data sent by the terminal to be switched.
  • the first access device and the second access device can transmit the data identifier through the NFC connection, when one accesses When the device forwards a certain data, the identifier of the data is sent to another access device. After receiving the identifier of the data, the other access device ignores the data and does not forward the data.
  • the terminal switching method provided by the embodiment of the present invention establishes a short-range wireless communication NFC connection with the second access device, and receives an authentication parameter of the to-be-switched terminal sent by the second access device through the NFC connection.
  • the distance between the first access device and the second access device is small, the distance between the first access device and the second access device is small, which solves the problem in the prior art when the terminal switches from one wireless access device to another wireless access device. It is possible to access the problem of an access device that is relatively far away, and achieve the effect of improving the communication performance and user experience after the terminal switches the access device.
  • the second access device has sent the authentication parameter of the to-be-switched terminal to the first access device, and the negotiation between the terminal and the first access device is reduced. Make the switching process smoother.
  • the terminal handover method provided by the embodiment of the present invention can simplify the interaction process with the device when the terminal is switched by receiving the channel parameter sent by the second access device through the NFC connection and establishing the second connection according to the channel parameter.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established to achieve the effect of seamlessly switching the to-be-switched terminal to the first access device, thereby improving the user experience.
  • FIG. 3 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • the second access device switches the terminal that accesses the second access device to the first access device, and the method for switching the terminal may include:
  • Step 302 When the distance between the first access device and the second access device is within the connection range of the short-range wireless communication NFC, the second access device establishes an NFC connection with the first access device.
  • Step 304 The second access device sends the authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, where the to-be-switched terminal is a part or all of the terminals that establish the first connection with the second access device, and the authentication parameter is used by the second access device.
  • the first access device is configured to perform access authentication according to the authentication parameter, and establish a second connection with the to-be-switched terminal after the authentication succeeds.
  • the terminal switching method establishes an NFC connection with the first access device, and sends the authentication parameter of the to-be-switched terminal to the first access device through the NFC connection, and the first access device Performing access authentication on the handover terminal according to the authentication parameter, and establishing a second connection with the to-be-switched terminal after the authentication succeeds, because the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access. When the distance between the devices is in the range of the NFC, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When accessing a device, it is likely to access a remotely located access device, which improves the communication performance and user experience after the terminal switches the access device.
  • the second access device sends the authentication parameter of the to-be-switched terminal to the first access device in advance, which reduces the negotiation between the to-be-switched terminal and the first access device, so that the negotiation is performed.
  • the process of switching is smoother.
  • FIG. 4 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • the second access device switches the terminal accessing the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal switching method may include:
  • Step 402 When the distance between the first access device and the second access device is within the connection range of the short-range wireless communication NFC, the second access device establishes an NFC connection with the first access device.
  • the first access device and the second access device may be free according to information such as the number and distribution of the access terminals.
  • the location is adjusted to provide better network access services to each terminal, and the movement of each access device can be controlled by a separate controller, which can be placed on the base station side connected to each access device.
  • a separate controller which can be placed on the base station side connected to each access device.
  • several terminals have established a Wi-Fi connection with the second access device, and the second access device provides the network access service for the terminal through the established Wi-Fi connection.
  • the second access device may request the controller
  • the terminal accessing the second access device switches to another access device, and after receiving the request, the controller determines that the first access device is the destination access device for the terminal handover, and notifies the first access device according to the specified path.
  • the first access device and the second access device initiate NFC pairing detection. When the distance between the two is within the NFC connection range, one of the two may The NFC pairing signal sent by the other party is detected. At this time, the first access device can determine that the second access device has arrived, and can perform the switching of the access terminal.
  • the identifier of the first access device returned by the controller is received, and the NFC pairing signal is periodically received, and the received pairing signal is included.
  • the device identifier is compared with the identifier of the first access device. If the two are consistent, the device that sends the NFC pairing signal is the first access device, and interacts with the first access device to establish an NFC connection.
  • Step 404 The second access device sends the authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, where the authentication parameter is used to indicate that the first access device performs access authentication and is authenticated according to the authentication parameter. After successful, establish a second connection with the terminal to be switched;
  • the to-be-switched terminal is a terminal that establishes a first connection with the second access device.
  • the first connection may be a Wi-Fi connection established between the to-be-switched terminal and the second access device
  • the second connection may be a Wi-Fi connection established between the to-be-switched terminal and the first access device.
  • the to-be-switched terminal When the second access device is in a low-power state, the to-be-switched terminal may be all terminals that establish a Wi-Fi connection with the second access device, and when the second access device access terminal has excessive shunting, The to-be-switched terminal may be a part of terminals specified in all terminals that establish a Wi-Fi connection with the second access device.
  • the authentication parameter may be used to perform identity authentication on the handover terminal.
  • the authentication parameter may be a PMK, a PTK, or a GTK.
  • the specific content of the authentication parameter is not specifically limited in this embodiment.
  • the second access device may trigger the to-be-switched terminal to send an authentication request to the first access device, for example, when the first access device and the second access device establish an NFC connection, and the second access device receives the first access device.
  • the second access device may send a handover notification including the identifier of the first access device to the to-be-switched terminal, and after the handover terminal receives the handover notification, send the notification to the first access device.
  • the authentication request may be triggered by the first access device, for example, the authentication parameter may carry the identifier of the terminal to be switched, and the first access device and the second access device establish an NFC connection.
  • the first access device After the second access device receives the authentication parameter sent by the first access device through the NFC connection, the first access device sends a handover notification to the to-be-switched terminal according to the identifier of the to-be-switched terminal, and after the handover terminal receives the handover notification, Sending an authentication request to the first access device.
  • the terminal may determine that the terminal needs to be handed over from the second access device to the first access device. To switch the terminal, a Wi-Fi connection can be established with the terminal at this time, and the network access service is provided for the terminal instead of the second access device.
  • the second access device may further send a channel parameter to the second access device by using the NFC connection, where the channel parameter is an access channel parameter used by the to-be-switched terminal to access the second access device; the first access device may Establishing a second connection with the to-be-switched terminal according to the channel parameter.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established, so that the to-be-switched terminal can seamlessly switch to the first access device, and the second access device
  • the access channel parameter of the terminal to be switched to access the second access device may be sent to the first access device by using an NFC connection, where the channel parameter may be a working channel of the terminal to be switched, a channel bandwidth, etc., the first access device
  • the switching notification may be sent to the terminal to be switched according to the channel parameter to notify the terminal to be switched to send an authentication request, or the Wi-Fi connection between the terminal to be switched may be directly established according to the channel parameter, so that the terminal to be switched can inherit the original Some working channels are used to access the network.
  • Step 406 After the first access device establishes the second connection with the to-be-switched terminal, the second access device cancels the first connection with the to-be-switched terminal.
  • the first access device may send a connection success response to the to-be-switched terminal, and the to-be-switched terminal may connect to the Wi-Fi connection with the first access device. Access to the network.
  • the to-be-switched terminal also interacts with the second access device to revoke the Wi-Fi connection between the terminal and the second access device, thereby completing the handover from the second access device to The process of the first access device.
  • the terminal to be switched when the terminal to be switched successfully establishes a connection with the first access device, and the connection with the second access device has not been revoked, the terminal to be switched accesses the two access devices simultaneously through the same working channel.
  • the data to be transmitted by the first access device and the second access device may be received by the first access device and the second access device, and the first access device and the second access device may receive data sent by the terminal to be switched.
  • the first access device and the second access device can transmit the data identifier through the NFC connection, when one accesses When the device forwards a certain data, the identifier of the data is sent to another access device. After receiving the identifier of the data, the other access device may ignore the data and not forward the data.
  • the terminal handover method establishes an NFC connection with the first access device, and sends an authentication parameter of the to-be-switched terminal to the first access device through the NFC connection.
  • the first access device performs access authentication on the handover terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the distance of the NFC connection is relatively close, usually within one meter, when the first access device When the distance between the second access device and the second access device is in the range of the NFC, the distance between the first access device and the second access device is small, and the terminal in the prior art is solved from a wireless access device. When switching to another wireless access device, it is likely to access a remotely located access device, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the second access device sends the authentication parameter of the to-be-switched terminal to the first access device in advance, which reduces the negotiation between the to-be-switched terminal and the first access device, so that the negotiation is performed.
  • the process of switching is smoother.
  • the terminal handover method provided by the embodiment of the present invention sends a channel parameter to the first access device through the NFC connection, and the first access device establishes a second connection according to the channel parameter, which can simplify the interaction process with the device when the terminal is switched.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established to achieve the effect of seamlessly switching the to-be-switched terminal to the first access device, thereby improving the user experience.
  • FIG. 5 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • the present embodiment is used for the to-be-switched terminal that has established the first connection with the second access device, and the terminal to be switched is switched from the second access device to the first access device, and the terminal switching method may include:
  • Step 502 The to-be-switched terminal sends an authentication request to the first access device, where the authentication request is used to indicate that the first access device performs access authentication on the handover terminal according to the authentication parameter, and the authentication parameter is that the second access device passes the short-distance a parameter sent by the wireless communication NFC connection to the first access device;
  • Step 504 After the first access device is successfully authenticated, the to-be-switched terminal establishes a second connection with the first access device.
  • the terminal switching method sends an authentication request to the first access device after receiving the authentication parameter sent by the second access device through the NFC connection, and the first access device sends an authentication request to the first access device.
  • the second connection is established with the first access device. Because the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access device are When the distance between the first access device and the second access device is small, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art.
  • the device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • FIG. 6 is a flowchart of a method for a terminal handover method according to another embodiment of the present invention.
  • the to-be-switched terminal that establishes the first connection with the second access device is switched from the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal switching method may include:
  • Step 602 The to-be-switched terminal sends an authentication request to the first access device, where the authentication request is used to indicate that the first access device performs access authentication on the handover terminal according to the authentication parameter, where the authentication parameter is that the second access device passes the short-distance a parameter sent by the wireless communication NFC connection to the first access device;
  • the first connection may be a Wi-Fi connection established between the to-be-switched terminal and the second access device.
  • the first access device and the second access device may be free according to information such as the number and distribution of the access terminals.
  • the location is adjusted to provide better network access services to each terminal, and the movement of each access device can be controlled by a separate controller, which can be placed on the base station side connected to each access device.
  • a separate controller which can be placed on the base station side connected to each access device.
  • several terminals have established a Wi-Fi connection with the second access device, and the second access device provides the network access service for the terminal through the established Wi-Fi connection.
  • the second access device may request the controller to switch the terminal accessing the second access device to another access device.
  • the controller After receiving the request, the controller determines that the first access device is the destination access device for the terminal to switch, and notifies the first access device to move to the location of the second access device according to the specified path, and simultaneously, the first access device And the second access device starts the NFC pairing detection.
  • the distance between the two is within the connection range of the NFC
  • one of the two can detect the NFC pairing signal sent by the other party, and the first access device can It is determined that the access terminal has been reached, and the handover of the access terminal can be performed.
  • the second access device requests the controller to switch the terminal to another access device
  • the identifier of the first access device returned by the controller is received, and the NFC pairing signal is periodically received, and the received pairing signal is included.
  • the device identifier is compared with the identifier of the first access device. If the two are consistent, the device that sends the NFC pairing signal is the first access device, and interacts with the first access device to establish an NFC connection.
  • the to-be-switched terminal When the second access device is low in power, the to-be-switched terminal may be all terminals that establish a Wi-Fi connection with the second access device, and when the second access device access terminal has excessive shunting, the The handover terminal may be a part of the terminals specified in all terminals that establish a Wi-Fi connection with the second access device.
  • the authentication parameter may be used to perform identity authentication on the handover terminal.
  • the authentication parameter may be a PMK, a PTK, or a GTK.
  • the specific content of the authentication parameter is not specifically limited in this embodiment.
  • the authentication request of the to-be-switched terminal may be triggered by the first access device or triggered by the second access device. Specifically, after the first access device and the second access device establish an NFC connection, and the second access device receives the authentication parameter sent by the first access device through the NFC connection, the second access device may go to the terminal to be switched. Sending a handover notification that includes the identifier of the first access device, and after the handover terminal receives the handover notification, sending an authentication request to the first access device; or the authentication parameter may carry the identifier of the terminal to be switched.
  • the first access device can switch to the to-be-switched terminal according to the identifier of the terminal to be switched.
  • the terminal sends a handover notification, and after the handover terminal receives the handover notification, sends an authentication request to the first access device.
  • Step 604 After the first access device is successfully authenticated, the to-be-switched terminal establishes a second connection with the first access device.
  • the second connection may be a Wi-Fi connection established between the to-be-switched terminal and the first access device.
  • the terminal may determine that the terminal needs to be handed over from the second access device to the first access device.
  • a Wi-Fi connection can be established with the terminal at this time, and the network access service is provided for the terminal instead of the second access device.
  • Step 606 The to-be-switched terminal receives a connection success response sent by the first access device.
  • the first access device may send a connection success response to the to-be-switched terminal, and after the handover terminal receives the connection success response, the first access device may pass the first access.
  • a Wi-Fi connection between devices accesses the network.
  • the to-be-switched terminal also interacts with the second access device to revoke the Wi-Fi connection between the terminal and the second access device, thereby completing the handover from the second access device to The process of the first access device.
  • the terminal to be switched when the terminal to be switched successfully establishes a connection with the first access device, and the connection with the second access device has not been revoked, the terminal to be switched accesses the two access devices simultaneously through the same working channel.
  • the data to be transmitted by the first access device and the second access device may be received by the first access device and the second access device, and the first access device and the second access device may receive data sent by the terminal to be switched.
  • the first access device and the second access device can transmit the data identifier through the NFC connection, when one accesses When the device forwards a certain data, the identifier of the data is sent to another access device. After receiving the identifier of the data, the other access device may ignore the data and not forward the data.
  • the terminal handover method provided by the embodiment of the present invention is received by the first access device.
  • the first access device sends an authentication request to the first access device, and after the first access device successfully authenticates the authentication parameter, establishes a second connection with the first access device. Since the distance of the NFC connection is relatively short, usually within one meter, when the distance between the first access device and the second access device is within the connection range of the NFC, the first access device and the second access device are indicated. The distance between the two terminals is small, which solves the problem that the terminal in the prior art is likely to access a relatively remote access device when switching from one wireless access device to another. Communication performance and user experience after accessing the device.
  • FIG. 7 is a flowchart of a method for a terminal handover method according to an embodiment of the present invention.
  • the embodiment is used to switch the to-be-switched terminal accessed in the second access device to the first access device in the system that includes the first access device and the second access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal switching method may include:
  • Step 702 The first access device establishes an NFC connection with the second access device.
  • the first access device and the second access device may be free according to information such as the number and distribution of the access terminals.
  • the location is adjusted to provide better network access services to each terminal, and the movement of each access device can be controlled by a separate controller, which can be placed on the base station side connected to each access device.
  • a separate controller which can be placed on the base station side connected to each access device.
  • several terminals have established a Wi-Fi connection with the second access device, and the second access device provides the network access service for the terminal through the established Wi-Fi connection.
  • the second access device may request the controller to switch the terminal accessing the second access device to another access device.
  • the controller After receiving the request, the controller determines that the first access device is the destination access device for the terminal to switch, and notifies the first access device to move to the location of the second access device according to the specified path, and simultaneously, the first access device And the second access device starts the NFC pairing detection.
  • the distance between the two is within the connection range of the NFC
  • one of the two can detect the NFC pairing signal sent by the other party, and the first access device can It is determined that the access terminal has been reached, and the handover of the access terminal can be performed.
  • the second access device requests the controller to switch the terminal to another access device
  • the identifier of the first access device returned by the controller is received, and the NFC pairing signal is periodically received, and the received pairing signal is included.
  • the device identifier is compared with the identifier of the first access device. If the two are consistent, the device that sends the NFC pairing signal is the first access device, and interacts with the first access device to establish an NFC connection.
  • Step 704 The second access device sends the authentication parameter of the to-be-switched terminal to the first access device. Switching channel parameters of the terminal;
  • the to-be-switched terminal is a terminal that establishes a first connection with the second access device.
  • the first connection may be a Wi-Fi connection established between the to-be-switched terminal and the second access device.
  • the to-be-switched terminal When the second access device is in a low-power state, the to-be-switched terminal may be all terminals that establish a Wi-Fi connection with the second access device, and when the second access device access terminal has excessive shunting, The to-be-switched terminal may be a part of terminals specified in all terminals that establish a Wi-Fi connection with the second access device.
  • the authentication parameter may be used to perform identity authentication on the handover terminal.
  • the authentication parameter may be a PMK, a PTK, or a GTK.
  • the specific content of the authentication parameter is not specifically limited in this embodiment.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established, so that the to-be-switched terminal can seamlessly switch to the first access device, and the second access device
  • the access channel parameters used by the terminal to be switched to access the second access device may be sent to the first access device by using an NFC connection, where the channel parameter may be a working channel of the terminal to be switched, a channel bandwidth, and the like.
  • Step 706 The to-be-switched terminal sends an authentication request to the first access device.
  • the authentication request of the terminal to be switched may be triggered by the first access device or triggered by the second access device. Specifically, after the first access device and the second access device establish an NFC connection, and the second access device receives the authentication parameter sent by the first access device through the NFC connection, the second access device may go to the terminal to be switched. Sending a handover notification that includes the identifier of the first access device, and after the handover terminal receives the handover notification, sending an authentication request to the first access device; or the authentication parameter may carry the identifier of the terminal to be switched.
  • the first access device can switch to the to-be-switched terminal according to the identifier of the terminal to be switched.
  • the terminal sends a handover notification, or the first access device may send a handover notification to the to-be-switched terminal according to the channel parameter of the to-be-switched terminal.
  • the handover terminal After receiving the handover notification, the handover terminal sends an authentication request to the first access device.
  • Step 708 The first access device performs authentication on the handover terminal according to the authentication parameter.
  • the first access device may perform the authentication request according to the channel parameter of the terminal to be switched, and after receiving the authentication request sent by the terminal, perform authentication on the terminal according to the authentication parameter sent by the second access device, if the authentication is performed. If successful, it is determined that the terminal is a terminal to be switched.
  • Step 710 After the authentication succeeds, the first access device establishes a second connection with the to-be-switched terminal according to the channel parameter.
  • the second connection may be a Wi-Fi connection established between the to-be-switched terminal and the first access device.
  • the access device can establish a Wi-Fi connection with the to-be-switched terminal, and provide the network access service for the terminal instead of the second access device.
  • the first access device can directly establish a Wi-Fi connection with the terminal to be switched according to the channel parameter, so that the to-be-switched terminal can access the network by using the original working channel.
  • Step 712 The first access device sends a connection success response to the to-be-switched terminal.
  • the first access device may send a connection success response to the to-be-switched terminal, and the to-be-switched terminal may connect to the Wi-Fi connection with the first access device. Access to the network.
  • Step 714 The to-be-switched terminal revokes the first connection with the second access device.
  • the to-be-switched terminal After receiving the connection success response, the to-be-switched terminal also interacts with the second access device to revoke the Wi-Fi connection between the terminal and the second access device, thereby completing the handover from the second access device to The process of the first access device.
  • the terminal to be switched when the terminal to be switched successfully establishes a connection with the first access device, and the connection with the second access device has not been revoked, the terminal to be switched accesses the two access devices simultaneously through the same working channel.
  • the data to be transmitted by the first access device and the second access device may be received by the first access device and the second access device, and the first access device and the second access device may receive data sent by the terminal to be switched.
  • the first access device and the second access device can transmit the data identifier through the NFC connection, when one accesses When the device forwards a certain data, the identifier of the data is sent to another access device. After receiving the identifier of the data, the other access device may ignore the data and not forward the data.
  • the first access device establishes a short-range wireless communication NFC connection with the second access device, and receives the to-be-switched transmission sent by the second access device through the NFC connection.
  • the authentication parameter of the terminal establishes a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter. Since the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access device are connected When the distance between the ingress devices is within the connection range of the NFC, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When the wireless access device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the terminal handover method since the second access device has sent the authentication parameter of the terminal to be switched to the first access device before the handover, the terminal and the first connection are reduced when the handover is performed.
  • the negotiation of the incoming device makes the switching process smoother.
  • the first access device receives the channel parameter sent by the second access device through the NFC connection, and establishes a second connection according to the channel parameter, which can simplify the terminal switching time and The interaction process of the device quickly establishes a Wi-Fi connection between the first access device and the terminal to be switched, so as to achieve the effect of seamlessly switching the terminal to be switched to the first access device, thereby improving the user experience.
  • the access device 800 can be configured to perform the method shown in FIG. 1 or FIG. 2, and establish a terminal to be switched when the terminal accessing the second access device needs to switch from the second access device to another access device.
  • the connection device 800 can include:
  • the first connection establishing module 801 is configured to establish an NFC connection with the second access device when the distance between the second access device and the second access device is within a connection range of the short-range wireless communication NFC;
  • the authentication parameter receiving module 802 is configured to receive an authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device. ;
  • the request receiving module 803 is configured to receive an authentication request sent by the to-be-switched terminal
  • the authentication module 804 is configured to perform access authentication on the to-be-switched terminal according to the authentication parameter.
  • the second connection establishing module 805 is configured to establish a second connection with the to-be-switched terminal after the authentication module 804 successfully authenticates.
  • the access device provided by the embodiment of the present invention establishes a short-range wireless communication NFC connection with the second access device, and receives an authentication parameter of the to-be-switched terminal sent by the second access device through the NFC connection.
  • Establishing a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter because the distance of the NFC connection is relatively short, usually within one meter, when the distance between the second access device and the second access device is in the NFC connection.
  • the range is small, it indicates that the distance from the second access device is small, which solves the problem that when the terminal switches from one wireless access device to another wireless access device in the prior art, it is likely to access a relatively distant location.
  • the problem of the access device achieves the effect of improving the communication performance and user experience after the terminal switches the access device.
  • the access device provided by the embodiment of the present invention reduces the negotiation step when the terminal to be switched is switched, so that the handover process is smoother, because the second access device receives the authentication parameter of the terminal to be switched.
  • the access device 900 can be configured to perform the method as shown in FIG. 1 or FIG. 2, and establish a terminal to be switched when the terminal accessing the second access device needs to switch from the second access device to another access device. the connection between.
  • the access device 900 is a mobile wireless access device, such as a Wi-Fi robot.
  • the access device 900 can include:
  • the first connection establishing module 901 is configured to establish an NFC connection with the second access device when the distance between the second access device and the second access device is within a connection range of the short-range wireless communication NFC;
  • the authentication parameter receiving module 902 is configured to receive an authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device. ;
  • the request receiving module 903 is configured to receive an authentication request sent by the to-be-switched terminal
  • the authentication module 904 is configured to perform access authentication on the to-be-switched terminal according to the authentication parameter.
  • the second connection establishing module 905 is configured to establish a second connection with the to-be-switched terminal after the authentication module 904 is successfully authenticated.
  • the access device 900 further includes:
  • the channel parameter receiving module 906 is configured to receive, before the second connection establishing module 905 establishes a second connection with the to-be-switched terminal, a channel parameter that is sent by the second access device by using the NFC connection, the channel The parameter is a channel parameter that the to-be-switched terminal accesses the second access device;
  • the second connection establishing module 905 is configured to establish the second connection with the to-be-switched terminal according to the channel parameter.
  • the access device 900 further includes:
  • the response sending module 907 is configured to send a connection success response to the to-be-switched terminal, where the connection success response is used to indicate that the to-be-switched terminal revokes the first connection with the second access device.
  • the access device provided by the embodiment of the present invention establishes a short-range wireless communication NFC connection with the second access device, and receives an authentication parameter of the to-be-switched terminal sent by the second access device through the NFC connection.
  • Establishing a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter because the distance of the NFC connection is relatively short, usually within one meter, when the distance between the second access device and the second access device is in the NFC connection. If the range is small, the distance between the terminal and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another wireless access device in the prior art. When it is possible to access an access device that is relatively far away, the communication performance and user experience after the terminal switches the access device are improved.
  • the access device provided by the embodiment of the present invention reduces the negotiation step when the terminal to be switched is switched, so that the handover process is smoother, because the second access device receives the authentication parameter of the terminal to be switched.
  • the access device provided by the embodiment of the present invention can simplify the interaction process with the device when the terminal is switched by receiving the channel parameter sent by the second access device through the NFC connection and establishing the second connection according to the channel parameter.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established to achieve the effect of seamlessly switching the to-be-switched terminal to another access device, thereby improving the user experience.
  • FIG. 10 shows a device configuration diagram of an access device according to an embodiment of the present invention.
  • the access device 1000 can be configured to perform the method shown in FIG. 1 or FIG. 2, and establish a terminal to be switched when the terminal accessing the second access device needs to switch from the second access device to another access device. Between the connections, the access device 1000 can include a bus 1005, and a processor 1001, a memory 1002, a transmitter 1003, and a receiver 1004 coupled to the bus 1005.
  • the memory 1002 is configured to store a number of instructions that are configured to be executed by the processor 1001.
  • the processor 1001 is configured to execute the instructions, when the distance between the second access device and the second access device is within a connection range of the short-range wireless communication NFC, the transmitter 1003 and the receiver 1004 are controlled. Establishing an NFC connection with the second access device;
  • the receiver 1004 is configured to receive an authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device. ;
  • the receiver 1004 is further configured to receive an authentication request sent by the to-be-switched terminal;
  • the processor 1001 is configured to perform access authentication on the to-be-switched terminal according to the authentication parameter.
  • the processor 1001 is configured to control the transmitter 1003 and the receiver 1004 to establish a second connection with the to-be-switched terminal after the authentication succeeds.
  • the access device provided by the embodiment of the present invention establishes a short-range wireless communication NFC connection with the second access device, and receives an authentication parameter of the to-be-switched terminal sent by the second access device through the NFC connection.
  • the distance between the devices is in the range of the NFC
  • the distance between the device and the second access device is small, which solves the problem in the prior art when the terminal switches from one wireless access device to another. It is very possible to access an access device that is relatively far away, and achieve the effect of improving the communication performance and user experience after the terminal switches the access device.
  • the access device provided by the embodiment of the present invention reduces the negotiation step when the terminal to be switched is switched, so that the handover process is smoother, because the second access device receives the authentication parameter of the terminal to be switched.
  • the access device 1100 can be configured to perform the method shown in FIG. 1 or FIG. 2, and establish a terminal to be switched when the terminal accessing the second access device needs to switch from the second access device to another access device. the connection between.
  • the access device 1100 is a mobile wireless access device, such as a Wi-Fi robot.
  • the access device 1100 can include a bus 1105, and a processor 1101, a memory 1102, a transmitter 1103, and a receiver 1104 coupled to the bus 1105.
  • the memory 1102 is configured to store a number of instructions that are configured to be executed by the processor 1101.
  • the processor 1101 is configured to execute the instructions, when the distance between the second access device and the second access device is within a connection range of the short-range wireless communication NFC, the transmitter 1103 and the receiver 1104 are controlled. Establishing an NFC connection with the second access device;
  • the receiver 1104 is configured to receive an authentication parameter of the to-be-switched terminal that is sent by the second access device by using the NFC connection, where the to-be-switched terminal is a terminal that establishes a first connection with the second access device. ;
  • the receiver 1104 is configured to receive an authentication request sent by the to-be-switched terminal.
  • the processor 1101 is configured to perform access authentication on the to-be-switched terminal according to the authentication parameter.
  • the processor 1101 is configured to control the transmitter 1103 and the receiver 1104 to establish a second connection with the to-be-switched terminal after the authentication succeeds.
  • the receiver 1104 is further configured to receive a channel parameter that is sent by the second access device by using the NFC connection, where the channel parameter is that the to-be-switched terminal accesses the second access device.
  • Channel parameter is that the to-be-switched terminal accesses the second access device.
  • the processor 1101 is configured to control the transmitter 1103 and the receiver 1104, and establish the second connection with the to-be-switched terminal according to the channel parameter.
  • the processor 1101 is configured to control the transmitter 1103 to send a connection success response to the to-be-switched terminal, where the connection success response is used to indicate that the to-be-switched terminal is revoked between the second access device and the second access device.
  • the first connection is configured to control the transmitter 1103 to send a connection success response to the to-be-switched terminal, where the connection success response is used to indicate that the to-be-switched terminal is revoked between the second access device and the second access device.
  • the access device provided by the embodiment of the present invention establishes a short-range wireless communication NFC connection with the second access device, and receives an authentication parameter of the to-be-switched terminal sent by the second access device through the NFC connection.
  • Establishing a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter because the distance of the NFC connection is relatively short, usually within one meter, when the distance between the second access device and the second access device is in the NFC connection.
  • the range is small, it indicates that the distance from the second access device is small, which solves the problem that when the terminal switches from one wireless access device to another wireless access device in the prior art, it is likely to access a relatively distant location.
  • the problem of the access device achieves the effect of improving the communication performance and user experience after the terminal switches the access device.
  • the access device provided by the embodiment of the present invention reduces the negotiation step when the terminal to be switched is switched, so that the handover process is smoother, because the second access device receives the authentication parameter of the terminal to be switched.
  • the access device provided by the embodiment of the present invention can simplify the interaction process with the device when the terminal is switched by receiving the channel parameter sent by the second access device through the NFC connection and establishing the second connection according to the channel parameter.
  • the Wi-Fi connection between the terminal to be switched is quickly established, and the effect of seamlessly switching the terminal to be switched to the access device is achieved, thereby improving the user experience.
  • FIG. 12 shows a device configuration diagram of an access device according to an embodiment of the present invention.
  • the access device 1200 can be configured to perform the method shown in FIG. 3 or FIG. 4, and switch the terminal accessing the access device 1200 to the first access device.
  • the access device 1200 is a mobile wireless access device, such as a Wi-Fi robot.
  • the access device 1200 can include:
  • the third connection establishing module 1201 is configured to establish an NFC connection with the first access device when the distance between the first access device and the first access device is within a connection range of the short-range wireless communication NFC;
  • the authentication parameter sending module 1202 is configured to send, by using the NFC connection, an authentication parameter of the to-be-switched terminal to the first access device, where the to-be-switched terminal is configured to establish a first connection with the third connection establishing module 1201.
  • the terminal, the authentication parameter is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the access device provided by the embodiment of the present invention establishes NFC with the first access device. Connecting, and transmitting the authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, the first access device performs access authentication on the handover terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds. Since the distance of the NFC connection is relatively short, usually within one meter, when the distance from the first access device is within the connection range of the NFC, the distance between the first access device and the first access device is small, and the solution is solved. In the prior art, when a terminal switches from one wireless access device to another wireless access device, it is likely to access a relatively remote access device, thereby improving communication performance and users after the terminal switches the access device. The effect of the experience.
  • the access device provided by the embodiment of the present invention reduces the authentication step of the to-be-switched terminal to the first access device, and reduces the negotiation procedure with the first access device when the terminal to be switched is switched, so that the process of the handover is performed. Smoother.
  • the access device 1300 can be configured to perform the method shown in FIG. 3 or FIG. 4, and switch the terminal accessing the access device 1300 to the first access device.
  • the access device 1300 is a removable wireless access device, such as a Wi-Fi robot.
  • the access device 1300 can include:
  • the third connection establishing module 1301 is configured to establish an NFC connection with the first access device when the distance between the first access device and the first access device is within a connection range of the short-range wireless communication NFC;
  • the authentication parameter sending module 1302 is configured to send, by using the NFC connection, the authentication parameter of the to-be-switched terminal to the first access device, where the to-be-switched terminal is configured to establish a first connection with the third connection establishing module 1301.
  • the terminal, the authentication parameter is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the access device 1300 further includes:
  • the channel parameter sending module 1303 is configured to send, by using the NFC connection, a channel parameter to the first access device, where the channel parameter is an access channel parameter of the to-be-switched terminal.
  • the access device 1300 further includes:
  • the first revocation module 1304 is configured to revoke the first connection with the to-be-switched terminal after the first access device establishes the second connection with the to-be-switched terminal.
  • the access device provided by the embodiment of the present invention establishes an NFC connection with the first access device, and sends an authentication parameter of the to-be-switched terminal to the first access device through the NFC connection, and the first access device Performing access authentication on the handover terminal according to the authentication parameter and after the authentication succeeds
  • the second connection is established by the terminal, and the distance between the NFC connection is usually within one meter, and when the distance between the first access device and the first access device is within the connection range of the NFC, indicating that the connection with the first access device is The distance is small, which solves the problem that the terminal in the prior art is likely to access a relatively remote access device when switching from one wireless access device to another wireless access device, thereby improving the terminal switching access device. After the communication performance and user experience.
  • the access device provided by the embodiment of the present invention reduces the authentication step of the to-be-switched terminal to the first access device, and reduces the negotiation procedure with the first access device when the terminal to be switched is switched, so that the process of the handover is performed. Smoother.
  • the access device provided by the embodiment of the present invention sends a channel parameter to the first access device through the NFC connection, and the first access device establishes a second connection according to the channel parameter, which can simplify the interaction process with the device when the terminal is switched.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established to achieve the effect of seamlessly switching the to-be-switched terminal to the first access device, thereby improving the user experience.
  • the access device 1400 can be configured to perform the method shown in FIG. 3 or FIG. 4, and switch the terminal accessing the access device 1400 to the first access device.
  • the access device 1400 is a mobile wireless access device, such as a Wi-Fi robot.
  • the access device 1400 can include a bus 1405, and a processor 1401, a memory 1402, a transmitter 1403, and a receiver 1404 coupled to the bus 1405.
  • the memory 1402 is configured to store a number of instructions that are configured to be executed by the processor 1401.
  • the processor 1401 is configured to execute the instruction, when the distance between the first access device and the first access device is within a connection range of a short-range wireless communication NFC, controlling the transmitter 1403 and the receiver 1404 Establishing an NFC connection with the first access device;
  • the processor 1401 is configured to control the transmitter 1403 to send an authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, where the to-be-switched terminal is already established with the access device. a connected terminal, the authentication parameter is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the access device provided by the embodiment of the present invention establishes an NFC connection with the first access device, and sends an authentication parameter of the to-be-switched terminal to the first access device through the NFC connection, and the first access device Performing access authentication on the handover terminal according to the authentication parameter and establishing a second connection with the to-be-switched terminal after the authentication succeeds, because the distance of the NFC connection is relatively close, usually within one meter, when When the distance between the access devices is within the connection range of the NFC, the distance between the access device and the first access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When the device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the access device provided by the embodiment of the present invention reduces the authentication step of the to-be-switched terminal to the first access device, and reduces the negotiation procedure with the first access device when the terminal to be switched is switched, so that the process of the handover is performed. Smoother.
  • the access device 1500 can be configured to perform the method shown in FIG. 3 or FIG. 4, and switch the terminal accessing the access device 1500 to the first access device.
  • the access device 1500 is a mobile wireless access device, such as a Wi-Fi robot.
  • the access device 1500 can include a bus 1505, and a processor 1501, a memory 1502, a transmitter 1503, and a receiver 1504 coupled to the bus 1505.
  • the memory 1502 is configured to store a plurality of instructions configured to be executed by the processor 1501;
  • the processor 1501 is configured to control the transmitter 1503 and the receiver 1504 and the first access device when a distance between the first access device is within a connection range of the short-range wireless communication NFC. Establish an NFC connection;
  • the processor 1501 is configured to control the transmitter 1503 to send an authentication parameter of the to-be-switched terminal to the first access device by using the NFC connection, where the to-be-switched terminal establishes a first with the access device.
  • the connected terminal, the authentication parameter is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, and establishes a second connection with the to-be-switched terminal after the authentication succeeds.
  • the processor 1501 is configured to control the transmitter 1503 to send a channel parameter to the first access device by using the NFC connection, where the channel parameter is an access channel parameter of the to-be-switched terminal.
  • the processor 1501 is configured to control, after the first access device establishes the second connection with the to-be-switched terminal, the transmitter 1503 and the receiver 1504 to cancel the terminal to be switched.
  • the access device provided by the embodiment of the present invention establishes an NFC connection with the first access device, and sends an authentication parameter of the to-be-switched terminal to the first access device through the NFC connection, and the first access device Performing access authentication on the handover terminal according to the authentication parameter and establishing a second connection with the to-be-switched terminal after the authentication succeeds, because the distance of the NFC connection is relatively close, usually within one meter, when When the distance between the access devices is within the connection range of the NFC, the distance between the access device and the first access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When the device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the access device provided by the embodiment of the present invention reduces the authentication step of the to-be-switched terminal to the first access device, and reduces the negotiation procedure with the first access device when the terminal to be switched is switched, so that the process of the handover is performed. Smoother.
  • the access device provided by the embodiment of the present invention sends a channel parameter to the first access device through the NFC connection, and the first access device establishes a second connection according to the channel parameter, which can simplify the interaction process with the device when the terminal is switched.
  • the Wi-Fi connection between the first access device and the to-be-switched terminal is quickly established to achieve the effect of seamlessly switching the to-be-switched terminal to the first access device, thereby improving the user experience.
  • the terminal 1600 can perform the method as shown in FIG. 5 or FIG. 6, and is switched by the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal 1600 can include:
  • the request sending module 1601 is configured to send an authentication request to the first access device, where the authentication request is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, where the authentication parameter is a parameter that is sent by the second access device to the first access device by using a short-range wireless communication NFC connection;
  • the fourth connection establishing module 1602 is configured to establish a second connection with the first access device after the first access device is successfully authenticated.
  • the terminal provided by the embodiment of the present invention sends an authentication request to the first access device after receiving the authentication parameter sent by the second access device through the NFC connection, and is in the first connection.
  • the second connection is established with the first access device.
  • the distance between the first access device and the second access device is usually within one meter. When the distance between the first access device and the second access device is small, the distance between the first access device and the second access device is small, which solves the problem in the prior art when the terminal switches from one wireless access device to another wireless access device. It is possible to access the problem of an access device that is relatively far away, and achieve the effect of improving the communication performance and user experience after the terminal switches the access device.
  • the terminal 1700 can perform the method as shown in FIG. 5 or FIG. 6, and is switched by the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal can include:
  • the request sending module 1701 is configured to send an authentication request to the first access device, where the authentication request is used to indicate that the first access device performs access authentication on the to-be-switched terminal according to the authentication parameter, where the authentication parameter is a parameter that is sent by the second access device to the first access device by using a short-range wireless communication NFC connection;
  • the fourth connection establishing module 1702 is configured to establish a second connection with the first access device after the first access device is successfully authenticated.
  • the terminal 1700 further includes:
  • the response receiving module 1703 is configured to receive a connection success response sent by the first access device.
  • the second revocation module 1704 is configured to revoke the first connection with the second access device.
  • the terminal provided by the embodiment of the present invention sends an authentication request to the first access device after receiving the authentication parameter sent by the second access device through the NFC connection, and is in the first connection.
  • the second connection is established with the first access device.
  • the distance between the first access device and the second access device is usually within one meter. When the distance between the first access device and the second access device is small, the distance between the first access device and the second access device is small, which solves the problem in the prior art when the terminal switches from one wireless access device to another wireless access device. It is possible to access the problem of an access device that is relatively far away, and achieve the effect of improving the communication performance and user experience after the terminal switches the access device.
  • FIG. 18 is a structural diagram of a device of a terminal according to an embodiment of the present invention.
  • the terminal 1800 can perform the method as shown in FIG. 5 or FIG. 6, and is switched by the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal 1800 can include a bus 1805, and a processor 1801, a memory 1802, a transmitter 1803, and a receiver 1804 that are coupled to the bus 1805.
  • the memory 1802 is configured to store a plurality of instructions configured to be executed by the processor 1801;
  • the processor 1801 is configured to control the transmitter 1803 to send an authentication request to the first access device, where the authentication request is used to instruct the first access device to access the to-be-switched terminal according to the authentication parameter.
  • the authentication parameter is that the second access device passes the short-range wireless communication NFC Connecting a parameter sent to the first access device;
  • the processor 1801 is configured to control the transmitter 1803 and the receiver 1804 to establish a second connection with the first access device after the first access device is successfully authenticated.
  • the terminal provided by the embodiment of the present invention sends an authentication request to the first access device after receiving the authentication parameter sent by the second access device through the NFC connection, and is in the first connection.
  • the second connection is established with the first access device.
  • the distance between the first access device and the second access device is usually within one meter. When the distance between the first access device and the second access device is small, the distance between the first access device and the second access device is small, which solves the problem in the prior art when the terminal switches from one wireless access device to another wireless access device. It is possible to access the problem of an access device that is relatively far away, and achieve the effect of improving the communication performance and user experience after the terminal switches the access device.
  • FIG. 19 shows a device configuration diagram of a terminal according to another embodiment of the present invention.
  • the terminal 1900 can perform the method as shown in FIG. 5 or FIG. 6, and is switched by the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the terminal 1900 can include a bus 1905, and a processor 1901, a memory 1902, a transmitter 1903, and a receiver 1904 that are coupled to the bus 1905.
  • the memory 1902 is configured to store a plurality of instructions, the instructions being configured to be executed by the processor 1901;
  • the processor 1901 is configured to send an authentication request to the first access device, where the authentication request is used to instruct the first access device to perform access authentication on the to-be-switched terminal according to the authentication parameter, where the authentication parameter is a parameter sent by the second access device to the first access device by using a short-range wireless communication NFC connection;
  • the processor 1901 is configured to control the transmitter 1903 and the receiver 1904 to establish a second connection with the first access device after the first access device is successfully authenticated.
  • the receiver 1904 is configured to receive a connection success response sent by the first access device.
  • the processor 1901 is configured to control the transmitter 1903 and the receiver 1904 to revoke the first connection with the second access device.
  • the terminal provided by the embodiment of the present invention sends an authentication request to the first access device after receiving the authentication parameter sent by the second access device through the NFC connection, and is in the first connection.
  • the second connection is established with the first access device. Because the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access device are connected. When the distance between the two access devices is small, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art.
  • the device is connected to the device, it is likely to access a remotely located access device, which improves the communication performance and user experience after the terminal switches the access device.
  • FIG. 20 shows a block diagram of a smart phone provided by an embodiment of the present invention.
  • the smart phone 2000 shown in FIG. 20 is only an example of the terminal shown in any of FIGS. 16 to 19.
  • the smartphone 2000 may have more or fewer components than those shown in FIG. 20, two or more components may be combined, or may have different component configurations.
  • the various components shown in Figure 20 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the smart phone 2000 is taken as an example for specific description. As shown in FIG. 20, the smart phone 2000 includes at least one processor 2001, a memory 2002, a sensor 2003, an I/O interface 2004, a positioning module 2005, a communication module 2006, and at least one. Communication bus 2007 and communication antenna 2008. Smartphone 2000 also includes other functional components such as battery modules, wired/wireless charging interfaces, and more. Communication bus 2007 is used to implement connection communication between these components.
  • Memory 2002 may include non-volatile solid state memory and/or dynamic non-volatile storage devices such as flash memory, rotatable disk drives.
  • the sensor module 2003 includes various sensors such as a proximity sensor, an acceleration sensor, an electronic compass sensor, a light sensor, and the like for measuring the azimuth motion state information of the smartphone 2000.
  • the positioning module 2005 can be used to perform functions such as GPS (Global Positioning System) positioning, WLAN (Wireless Local Area Networks) positioning, base station positioning, and the like, and acquire geographic information such as the location and height of the smart phone 2000.
  • the communication module 2006 can be used for long-distance communication, such as GSM (Global System for Mobile communication), CDMA (Code Division Multiple Access), GPRS (General Packet Radio Service) EDGE (Enhanced Data Rate for GSM Evolution), 3G technologies such as WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) Synchronous code division multiple access), 4G technology such as LTE (Long Term Evolution), etc.; communication module 2006 can also be used for short-range communication, and can be performed with another mobile intelligent terminal or wearable sound collection device in close range. Short-range wireless communications such as ZigBee, UWB, Wi-Fi, Bluetooth, NFC, and infrared communications.
  • the communication antenna 2008 is used to receive and transmit
  • the I/O interface 2004 includes a touch screen 20041 for display and input, an I/O keyboard 20042 for input (optional), a microphone 20043, which is the aforementioned microphone array, a speaker 20044, and the like.
  • the memory 2002 includes an operating system 20021 and an application 20022.
  • the operating system 20021 includes various operating system programs for implementing hardware-based operations.
  • the application 20022 includes various applications for implementing various application functions.
  • a speech recognition program or a voice assistant program can perform user security authentication according to the voiceprint feature input by the user's voice; or can parse the semantics from the input user's voice signal, thereby performing corresponding functions and operations, For example, take a photo, find the user in the address book according to the semantics and make a call or send a short message, or answer the call or reply to the short message.
  • the memory 2002 may be configured to store an azimuth motion state, where the azimuth motion state includes at least a proximity distance and a proximity distance change rate, and may further include a horizontal tilt angle, a horizontal tilt angle change rate, an acceleration change rate, and an azimuth change rate; The sound collected by the sound collecting device and the voice signal acquired from the sound collecting device are stored.
  • the memory 2002 may be further configured to store a preset range of the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold, and the horizontal tilt.
  • the memory 2002 can also be used to store mixed voice signals.
  • the processor 2001 communicates with various modules and components via the bus 2007.
  • the sensor 2003 detects and acquires an azimuth motion state, and the processor 2001 determines the sound collection device according to the method in the previous embodiment. If it is determined that the sound collection device is a microphone array, the sound is acquired through the microphone 20043, the sound is converted into a voice signal, and then transmitted to the processor 2001. If the sound collection device is determined to be a wearable sound collection device, the wearable sound collection device is received through the antenna 2008. The collected sound is converted into a voice signal and transmitted to the processor 2001.
  • the smart phone provided by the embodiment of the present invention when the first connection is established with the second access device, may be sent to the first access device after the first access device receives the authentication parameter sent by the second access device through the NFC connection.
  • the first access device After the authentication request is successful, the first access device establishes a second connection with the first access device after the authentication is successfully performed according to the authentication parameter, because the distance of the NFC connection is relatively short, usually within one meter, when the first access device is When the distance between the second access device is within the connection range of the NFC, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from a wireless access device in the prior art. When accessing another wireless access device, it is likely to access a relatively distant access The problem of the device is to improve the communication performance and user experience after the terminal switches the access device.
  • FIG. 21 a system configuration diagram of a terminal switching system according to an embodiment of the present invention is shown.
  • the system can be used to perform the method shown in FIG. 7 to switch the device to be switched from the second access device to the first access device.
  • the first access device and the second access device are mobile wireless access devices, such as Wi-Fi robots.
  • the system can include:
  • the terminal switching system provided by the embodiment of the present invention, the first access device establishes a short-range wireless communication NFC connection with the second access device, and receives the to-be-switched transmission by the second access device through the NFC connection.
  • the authentication parameter of the terminal establishes a connection with the terminal to be switched after the access authentication is successfully performed according to the authentication parameter. Since the distance of the NFC connection is relatively short, usually within one meter, when the first access device and the second access device are connected When the distance between the ingress devices is within the connection range of the NFC, the distance between the first access device and the second access device is small, which solves the problem that the terminal switches from one wireless access device to another in the prior art. When the wireless access device is connected to the device, it is likely to access the access device with a relatively distant location, thereby improving the communication performance and user experience after the terminal switches the access device.
  • the first access device receives the channel parameter sent by the second access device through the NFC connection, and establishes a second connection according to the channel parameter, which can simplify the terminal switching.
  • the interaction process of the device quickly establishes a Wi-Fi connection between the first access device and the terminal to be switched, so as to achieve the effect of seamlessly switching the terminal to be switched to the first access device, thereby improving the user experience.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例提供了一种终端切换方法、接入设备、终端及系统,涉及无线通信领域,所述方法包括:第一接入设备与第二接入设备建立NFC连接;第一接入设备接收第二接入设备通过NFC连接发送的认证参数;根据认证参数对待切换终端进行接入认证成功后与待切换终端建立第二连接。本发明通过与第二接入设备建立NFC连接,接收第二接入设备通过NFC连接发送的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,解决了现有技术中终端切换接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。

Description

终端切换方法、接入设备、终端及系统
本申请要求于2014年05月27日提交中国专利局、申请号为201410227504.7、发明名称为“终端切换方法、接入设备、终端及系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信领域,特别涉及一种终端切换方法、接入设备、终端及系统。
背景技术
随着无线通信领域的不断发展,现在出现一种可移动式无线接入设备,该无线接入设备可以自行移动位置以便为接入的终端提供更好的网络服务。
终端还可以在附近的多个可移动式无线接入设备之间进行切换。比如,终端通过移动式无线接入设备接入无线局域网络(Wireless Local Area Networks,WLAN),当该无线接入设备需要将接入的终端切换到其它接入设备时,可以向接入的终端发送切换通知,终端接收到切换通知后,查询附近可接入的其它无线接入设备并接入。
在实现本发明的过程中,发明人发现现有技术至少存在以下问题:
可移动式无线接入设备的位置并不固定,终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备,从而影响终端切换接入设备后的通信性能和用户体验。
发明内容
为了解决现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,本发明实施例提供了一种终端切换方法、接入设备、终端及系统。所述技术方案如下:
第一方面,提供一种终端切换方法,所述方法包括:
当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的 连接范围内时,所述第一接入设备与所述第二接入设备建立NFC连接;
所述第一接入设备接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
所述第一接入设备接收所述待切换终端发送的认证请求;
所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证,并在认证成功后与所述待切换终端建立第二连接。
在第一方面的第一种可能实现方式中,所述方法还包括:
接收所述第二接入设备通过所述NFC连接发送的信道参数,所述信道参数为所述待切换终端的接入信道参数;
所述在认证成功后与所述待切换终端建立第二连接,包括:
根据所述信道参数与所述待切换终端建立所述第二连接。
在第一方面的第二种可能实现方式中,所述方法还包括:
向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
第二方面,提供了一种终端切换方法,所述方法包括:
当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,所述第二接入设备与所述第一接入设备建立NFC连接;
所述第二接入设备通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
在第二方面的第一种可能实现方式中,所述方法还包括:
通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所述待切换终端的接入信道参数。
在第二方面的第二种可能实现方式中,所述方法还包括:
在所述第一接入设备与所述待切换终端建立所述第二连接之后,撤销与所述待切换终端之间的所述第一连接。
第三方面,提供了一种终端切换方法,所述方法包括:
待切换终端向第一接入设备发送认证请求,所述待切换终端为与第二接入设备建立第一连接的终端,所述认证请求用于指示所述第一接入设备根据认证 参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
所述待切换终端在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
在第三方面的第一种可能实现方式中,所述方法还包括:
接收所述第一接入设备发送的连接成功响应。
第四方面,提供了一种接入设备,所述接入设备包括:
第一连接建立模块,用于与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第二接入设备建立NFC连接;
认证参数接收模块,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
请求接收模块,用于接收所述待切换终端发送的认证请求;
认证模块,用于根据所述认证参数对所述待切换终端进行接入认证;
第二连接建立模块,用于在所述认证模块认证成功后与所述待切换终端建立第二连接。
在第四方面的第一种可能实现方式中,所述接入设备还包括:
信道参数接收模块,用于在所述第二连接建立模块与所述待切换终端建立第二连接之前,接收所述第二接入设备通过所述NFC连接发送的信道参数,所述信道参数为所述待切换终端的接入信道参数;
所述第二连接建立模块,用于根据所述信道参数与所述待切换终端建立所述第二连接。
在第四方面的第二种可能实现方式中,所述第一接入设备还包括:
响应发送模块,用于向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
第五方面,提供了一种接入设备,包括:
第三连接建立模块,用于与第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第一接入设备建立NFC连接;
认证参数发送模块,用于通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为已经与所述第三连接建立模块建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对 所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
在第五方面的第一种可能实现方式中,所述接入设备还包括:
信道参数发送模块,用于通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所述待切换终端的接入信道参数。
在第五方面的第二种可能实现方式中,所述第二接入设备还包括:
第一撤销模块,用于在所述第一接入设备与所述待切换终端建立所述第二连接之后,撤销与所述待切换终端之间的所述第一连接。
第六方面,提供了一种终端,所述终端包括:
请求发送模块,用于向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
第四连接建立模块,用于在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
在第六方面的第一种可能实现方式中,所述终端还包括:
响应接收模块,用于接收所述第一接入设备发送的连接成功响应。
第七方面,提供了一种终端切换系统,所述系统包括:
如上所述的第一接入设备、第二接入设备以及至少一个终端。
本发明实施例提供的技术方案的有益效果是:
通过第一接入设备与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所 需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一个实施例提供的终端切换方法的方法流程图;
图2是本发明另一实施例提供的终端切换方法的方法流程图;
图3是本发明一个实施例提供的终端切换方法的方法流程图;
图4是本发明另一实施例提供的终端切换方法的方法流程图;
图5是本发明一个实施例提供的终端切换方法的方法流程图;
图6是本发明另一实施例提供的终端切换方法的方法流程图;
图7是本发明一个实施例提供的终端切换方法的方法流程图;
图8是本发明一个实施例提供的接入设备的设备构成图;
图9是本发明另一实施例提供的接入设备的设备构成图;
图10是本发明一个实施例提供的接入设备的设备构成图;
图11是本发明另一实施例提供的接入设备的设备构成图;
图12是本发明一个实施例提供的接入设备的设备构成图;
图13是本发明另一实施例提供的接入设备的设备构成图;
图14是本发明一个实施例提供的接入设备的设备构成图;
图15是本发明另一实施例提供的接入设备的设备构成图;
图16是本发明一个实施例提供的终端的设备构成图;
图17是本发明另一实施例提供的终端的设备构成图;
图18是本发明一个实施例提供的终端的设备构成图;
图19是本发明另一实施例提供的终端的设备构成图;
图20是本发明一个实施例提供的智能手机的框图;
图21是本发明一个实施例提供的终端切换系统的系统构成图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
NFC(Near Field Communication,近距离无线通讯技术)是一种短距高频的无线电技术,其基于RFID(Radio Frequency Identification,射频识别技术) 以及互联互通技术发展而来,两台具有NFC功能的设备可以在短距离(通常不超过20cm)内进行通信。
请参考图1,其示出了本发明一个实施例提供的终端切换方法的方法流程图。本实施例用于在第一接入设备,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接,该终端切换方法可以包括:
步骤102,当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,第一接入设备与第二接入设备建立NFC连接;
步骤104,第一接入设备接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,待切换终端为与该第二接入设备建立第一连接的部分或者全部终端;
步骤106,第一接入设备接收待切换终端发送的认证请求;
步骤108,第一接入设备根据该认证参数对待切换终端进行接入认证,并在认证成功后与待切换终端建立第二连接。
综上所述,本发明实施例提供的终端切换方法,通过第一接入设备与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的终端切换方法,由于切换前第二接入设备已经向第一接入设备发送了待切换终端的认证参数,减少了切换时终端和第一接入设备的协商,使得切换的过程更加平滑。
请参考图2,其示出了本发明另一实施例提供的终端切换方法的方法流程图。本实施例用于在第一接入设备,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接。该第一接入设 备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人或者无线接入点AP。该终端切换方法可以包括:
步骤202,当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,第一接入设备与第二接入设备建立NFC连接;
以该第一接入设备和第二接入设备为Wi-Fi机器人或者无线接入点AP为例,第一接入设备和第二接入设备可以根据接入终端的数量及分布等信息自由调整位置,以便向各个终端提供更好的网络接入服务,各个接入设备的移动可以由单独的控制器来控制,该控制器可以设置在与各个接入设备连接的基站侧。当前有若干个终端已经与第二接入设备建立Wi-Fi连接,第二接入设备通过建立的Wi-Fi连接为终端提供网络接入服务。当第二接入设备电量不足或者接入的终端数量过多导致通信质量下降时,第二接入设备可以向控制器请求将接入该第二接入设备的终端切换至其它接入设备,控制器接收到该请求后,确定第一接入设备为终端切换的目的接入设备,并通知第一接入设备按照指定路径移动至第二接入设备所在位置,同时,第一接入设备和第二接入设备启动NFC配对检测,当两者之间的距离在NFC的连接范围之内时,两者中的一方可以检测到对方发送的NFC配对信号,此时第一接入设备可以确定已经到达第二接入设备附近,可以进行接入终端的切换。具体比如,第二接入设备向控制器请求将终端切换至其它接入设备后,接收控制器返回的第一接入设备的标识,并定时接收NFC配对信号,将接收到的配对信号中包含的设备标识与第一接入设备的标识进行比对,若两者一致,则确认发送该NFC配对信号的设备为第一接入设备,与第一接入设备进行交互以建立NFC连接。
步骤204,第一接入设备接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,待切换终端为与该第二接入设备建立第一连接的终端;
该第一连接可以是待切换终端与第二接入设备之间建立的Wi-Fi连接。其中,当该第二接入设备电量不足时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端,当该第二接入设备接入终端过多需要分流时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端中指定的部分终端。该认证参数可以用于对待切换终端进行身份认证,比如,该认证参数可以是PMK(Pairwise Master Key,主密钥对)、PTK(Pairwise Transient Key,瞬时密钥对)或者GTK(Group Temporal Key,组临时密钥)等,对于认证参数的具体内容,本实施例不做具体限定。
步骤206,第一接入设备接收待切换终端发送的认证请求;
其中,待切换终端的认证请求可以由第一接入设备触发,也可以由第二接入设备触发。具体的,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第二接入设备可以向待切换终端发送包含有第一接入设备的标识的切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求;或者,该认证参数中可以携带待切换终端的标识,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第一接入设备可以根据待切换终端的标识向待切换终端发送切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求。
步骤208,第一接入设备根据该认证参数对待切换终端进行接入认证,并在认证成功后与待切换终端建立第二连接;
该第二连接可以是待切换终端与第一接入设备之间建立的Wi-Fi连接。当第一接入设备接收到一终端发送的认证请求,并根据第二接入设备发送的认证参数认证成功后,可以确定该终端为需要从第二接入设备切换至第一接入设备的待切换终端,此时可以与该终端建立Wi-Fi连接,并代替第二接入设备为该终端提供网络接入服务。
此外,第一接入设备还可以接收第二接入设备通过NFC连接发送的信道参数,该信道参数为待切换终端接入第二接入设备所使用的接入信道参数;第一接入设备可以根据该信道参数与待切换终端建立第二连接。
为了简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,使待切换终端能够无缝切换至第一接入设备,第二接入设备还可以通过NFC连接将待切换终端接入第二接入设备的接入信道参数发送给第一接入设备,该信道参数可以是待切换终端的工作信道以及信道带宽等,第一接入设备可以根据该信道参数向待切换终端发送切换通知,以通知待切换终端发送认证请求,也可以根据该信道参数直接建立与待切换终端之间的Wi-Fi连接,以便待切换终端可以沿用原有的工作信道来接入网络。
步骤210,第一接入设备向待切换终端发送连接成功响应,该连接成功响应用于指示待切换终端撤销与第二接入设备之间的第一连接。
在第一接入设备与待切换终端建立Wi-Fi连接之后,第一接入设备可以向待切换终端发送连接成功响应,待切换终端可以通过与第一接入设备之间的 Wi-Fi连接接入网络。待切换终端在接收到该连接成功响应之后,还与第二接入设备进行交互,以将其与第二接入设备之间的Wi-Fi连接撤销,从而完成从第二接入设备切换至第一接入设备的过程。
需要说明的是,在待切换终端与第一接入设备建立连接成功,且尚未撤销与第二接入设备之间的连接时,待切换终端通过相同的工作信道同时接入两个接入设备,即待切换终端可以同时接收第一接入设备和第二接入设备发送的数据,且第一接入设备和第二接入设备都可以接收待切换终端发送的数据。为了避免将网络数据重复发送给待切换终端,或者将待切换终端发送的数据重复发送至网络,第一接入设备和第二接入设备之间可以通过NFC连接传递数据标识,当一个接入设备转发某个数据时,将该数据的标识发送给另一接入设备,另一接入设备接收到该数据的标识后,即忽略该数据,不予转发。
综上所述,本发明实施例提供的终端切换方法,通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的终端切换方法,由于切换前第二接入设备已经向第一接入设备发送了待切换终端的认证参数,减少了切换时终端和第一接入设备的协商,使得切换的过程更加平滑。
此外,本发明实施例提供的终端切换方法,通过接收该第二接入设备通过该NFC连接发送的信道参数,并根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
请参考图3,其示出了本发明一个实施例提供的终端切换方法的方法流程图。本实施例用于在第二接入设备,将接入该第二接入设备的终端切换到第一接入设备,该终端切换方法可以包括:
步骤302,当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,第二接入设备与第一接入设备建立NFC连接;
步骤304,第二接入设备通过NFC连接向第一接入设备发送待切换终端的认证参数,该待切换终端为与第二接入设备建立第一连接的部分或者全部终端,该认证参数用于指示第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接。
综上所述,本发明实施例提供的终端切换方法,通过与第一接入设备建立NFC连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的终端切换方法,第二接入设备预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时和第一接入设备的协商,使得切换的过程更加平滑。
请参考图4,其示出了本发明另一实施例提供的终端切换方法的方法流程图。本实施例用于在第二接入设备,将接入该第二接入设备的终端切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端切换方法可以包括:
步骤402,当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,第二接入设备与第一接入设备建立NFC连接;
以该第一接入设备和第二接入设备为Wi-Fi机器人或者无线接入点AP为例,第一接入设备和第二接入设备可以根据接入终端的数量及分布等信息自由调整位置,以便向各个终端提供更好的网络接入服务,各个接入设备的移动可以由单独的控制器来控制,该控制器可以设置在与各个接入设备连接的基站侧。当前有若干个终端已经与第二接入设备建立Wi-Fi连接,第二接入设备通过建立的Wi-Fi连接为终端提供网络接入服务。当第二接入设备电量不足或者接入的终端数量过多导致通信质量下降时,第二接入设备可以向控制器请求将 接入该第二接入设备的终端切换至其它接入设备,控制器接收到该请求后,确定第一接入设备为终端切换的目的接入设备,并通知第一接入设备按照指定路径移动至第二接入设备所在位置,同时,第一接入设备和第二接入设备启动NFC配对检测,当两者之间的距离在NFC的连接范围之内时,两者中的一方可以检测到对方发送的NFC配对信号,此时第一接入设备可以确定已经到达第二接入设备附近,可以进行接入终端的切换。比如,第二接入设备向控制器请求将终端切换至其它接入设备后,接收控制器返回的第一接入设备的标识,并定时接收NFC配对信号,将接收到的配对信号中包含的设备标识与第一接入设备的标识进行比对,若两者一致,则确认发送该NFC配对信号的设备为第一接入设备,与第一接入设备进行交互以建立NFC连接。
步骤404,第二接入设备通过NFC连接向第一接入设备发送待切换终端的认证参数,该认证参数用于指示第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接;
其中,该待切换终端为与第二接入设备建立第一连接的终端。
该第一连接可以是待切换终端与第二接入设备之间建立的Wi-Fi连接,第二连接可以是待切换终端与第一接入设备之间建立的Wi-Fi连接。
其中,当该第二接入设备电量不足时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端,当该第二接入设备接入终端过多需要分流时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端中指定的部分终端。该认证参数可以用于对待切换终端进行身份认证,比如,该认证参数可以是PMK、PTK或者GTK等,对于认证参数的具体内容,本实施例不做具体限定。
第二接入设备可以触发待切换终端向第一接入设备发送认证请求,比如,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第二接入设备可以向待切换终端发送包含有第一接入设备的标识的切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求;或者,该待切换终端的认证请求也可以由第一接入设备触发,比如,认证参数中可以携带待切换终端的标识,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第一接入设备根据待切换终端的标识向待切换终端发送切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求。
当第一接入设备接收到一终端发送的认证请求,并根据第二接入设备发送的认证参数认证成功后,可以确定该终端为需要从第二接入设备切换至第一接入设备的待切换终端,此时可以与该终端建立Wi-Fi连接,并代替第二接入设备为该终端提供网络接入服务。
此外,第二接入设备还可以通过NFC连接向第二接入设备发送信道参数,该信道参数为待切换终端接入第二接入设备所使用的接入信道参数;第一接入设备可以根据该信道参数与待切换终端建立第二连接。
为了简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,使待切换终端能够无缝切换至第一接入设备,第二接入设备还可以通过NFC连接将待切换终端接入第二接入设备的接入信道参数发送给第一接入设备,该信道参数可以是待切换终端的工作信道以及信道带宽等,第一接入设备可以根据该信道参数向待切换终端发送切换通知,以通知待切换中终端发送认证请求,也可以根据该信道参数直接建立与待切换终端之间的Wi-Fi连接,以便待切换终端可以沿用原有的工作信道来接入网络。
步骤406,在第一接入设备与待切换终端建立第二连接之后,第二接入设备撤销与待切换终端之间的第一连接。
在第一接入设备与待切换终端建立Wi-Fi连接之后,第一接入设备可以向待切换终端发送连接成功响应,待切换终端可以通过与第一接入设备之间的Wi-Fi连接接入网络。待切换终端在接收到该连接成功响应之后,还与第二接入设备进行交互,以将其与第二接入设备之间的Wi-Fi连接撤销,从而完成从第二接入设备切换至第一接入设备的过程。
需要说明的是,在待切换终端与第一接入设备建立连接成功,且尚未撤销与第二接入设备之间的连接时,待切换终端通过相同的工作信道同时接入两个接入设备,即待切换终端可以同时接收第一接入设备和第二接入设备发送的数据,且第一接入设备和第二接入设备都可以接收待切换终端发送的数据。为了避免将网络数据重复发送给待切换终端,或者将待切换终端发送的数据重复发送至网络,第一接入设备和第二接入设备之间可以通过NFC连接传递数据标识,当一个接入设备转发某个数据时,将该数据的标识发送给另一接入设备,另一接入设备接收到该数据的标识后,可以忽略该数据,不予转发。
综上所述,本发明实施例提供的终端切换方法,通过与第一接入设备建立NFC连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由 第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的终端切换方法,第二接入设备预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时和第一接入设备的协商,使得切换的过程更加平滑。
此外,本发明实施例提供的终端切换方法,通过NFC连接向第一接入设备发送信道参数,由第一接入设备根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
请参考图5,其示出了本发明一个实施例提供的终端切换方法的方法流程图。本实施例用于已经与第二接入设备建立第一连接的待切换终端,将该待切换终端由第二接入设备切换到第一接入设备,该终端切换方法可以包括:
步骤502,待切换终端向第一接入设备发送认证请求,该认证请求用于指示第一接入设备根据认证参数对待切换终端进行接入认证,该认证参数为第二接入设备通过近距离无线通讯NFC连接发送给第一接入设备的参数;
步骤504,待切换终端在第一接入设备认证成功后,与第一接入设备建立第二连接。
综上所述,本发明实施例提供的终端切换方法,通过在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
请参考图6,其示出了本发明另一实施例提供的终端切换方法的方法流程图。本实施例用于与第二接入设备建立第一连接的待切换终端,将该待切换终端由第二接入设备切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端切换方法可以包括:
步骤602,待切换终端向第一接入设备发送认证请求,该认证请求用于指示第一接入设备根据认证参数对待切换终端进行接入认证,该认证参数为第二接入设备通过近距离无线通讯NFC连接发送给第一接入设备的参数;
该第一连接可以是待切换终端与第二接入设备之间建立的Wi-Fi连接。
以该第一接入设备和第二接入设备为Wi-Fi机器人或者无线接入点AP为例,第一接入设备和第二接入设备可以根据接入终端的数量及分布等信息自由调整位置,以便向各个终端提供更好的网络接入服务,各个接入设备的移动可以由单独的控制器来控制,该控制器可以设置在与各个接入设备连接的基站侧。当前有若干个终端已经与第二接入设备建立Wi-Fi连接,第二接入设备通过建立的Wi-Fi连接为终端提供网络接入服务。当第二接入设备电量不足或者接入的终端数量过多导致通信质量下降时,第二接入设备可以向控制器请求将接入该第二接入设备的终端切换至其它接入设备,控制器接收到该请求后,确定第一接入设备为终端切换的目的接入设备,并通知第一接入设备按照指定路径移动至第二接入设备所在位置,同时,第一接入设备和第二接入设备启动NFC配对检测,当两者之间的距离在NFC的连接范围之内时,两者中的一方可以检测到对方发送的NFC配对信号,此时第一接入设备可以确定已经到达第二接入设备附近,可以进行接入终端的切换。比如,第二接入设备向控制器请求将终端切换至其它接入设备后,接收控制器返回的第一接入设备的标识,并定时接收NFC配对信号,将接收到的配对信号中包含的设备标识与第一接入设备的标识进行比对,若两者一致,则确认发送该NFC配对信号的设备为第一接入设备,与第一接入设备进行交互以建立NFC连接。
当该第二接入设备电量不足时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端,当该第二接入设备接入终端过多需要分流时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端中指定的部分终端。该认证参数可以用于对待切换终端进行身份认证,比如,该认证参数可以是PMK、PTK或者GTK等,对于认证参数的具体内容,本实施例不做具体限定。
此外,该待切换终端的认证请求可以由第一接入设备触发,也可以由第二接入设备触发。具体的,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第二接入设备可以向待切换终端发送包含有第一接入设备的标识的切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求;或者,该认证参数中可以携带待切换终端的标识,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第一接入设备可以根据待切换终端的标识向待切换终端发送切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求。
步骤604,待切换终端在第一接入设备认证成功后,与第一接入设备建立第二连接;
该第二连接可以是待切换终端与第一接入设备之间建立的Wi-Fi连接。当第一接入设备接收到一终端发送的认证请求,并根据第二接入设备发送的认证参数认证成功后,可以确定该终端为需要从第二接入设备切换至第一接入设备的待切换终端,此时可以与该终端建立Wi-Fi连接,并代替第二接入设备为该终端提供网络接入服务。
步骤606,待切换终端接收第一接入设备发送的连接成功响应。
在第一接入设备与待切换终端建立Wi-Fi连接之后,第一接入设备可以向待切换终端发送连接成功响应,待切换终端接收到该连接成功响应后,可以通过与第一接入设备之间的Wi-Fi连接接入网络。待切换终端在接收到该连接成功响应之后,还与第二接入设备进行交互,以将其与第二接入设备之间的Wi-Fi连接撤销,从而完成从第二接入设备切换至第一接入设备的过程。
需要说明的是,在待切换终端与第一接入设备建立连接成功,且尚未撤销与第二接入设备之间的连接时,待切换终端通过相同的工作信道同时接入两个接入设备,即待切换终端可以同时接收第一接入设备和第二接入设备发送的数据,且第一接入设备和第二接入设备都可以接收待切换终端发送的数据。为了避免将网络数据重复发送给待切换终端,或者将待切换终端发送的数据重复发送至网络,第一接入设备和第二接入设备之间可以通过NFC连接传递数据标识,当一个接入设备转发某个数据时,将该数据的标识发送给另一接入设备,另一接入设备接收到该数据的标识后,可以忽略该数据,不予转发。
综上所述,本发明实施例提供的终端切换方法,通过在第一接入设备接收 第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
请参考图7,其示出了本发明一个实施例提供的终端切换方法的方法流程图。本实施例用于在包含有第一接入设备和第二接入设备的系统,将第二接入设备中接入的待切换终端切换至第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端切换方法可以包括:
步骤702,第一接入设备与第二接入设备建立NFC连接;
以该第一接入设备和第二接入设备为Wi-Fi机器人或者无线接入点AP为例,第一接入设备和第二接入设备可以根据接入终端的数量及分布等信息自由调整位置,以便向各个终端提供更好的网络接入服务,各个接入设备的移动可以由单独的控制器来控制,该控制器可以设置在与各个接入设备连接的基站侧。当前有若干个终端已经与第二接入设备建立Wi-Fi连接,第二接入设备通过建立的Wi-Fi连接为终端提供网络接入服务。当第二接入设备电量不足或者接入的终端数量过多导致通信质量下降时,第二接入设备可以向控制器请求将接入该第二接入设备的终端切换至其它接入设备,控制器接收到该请求后,确定第一接入设备为终端切换的目的接入设备,并通知第一接入设备按照指定路径移动至第二接入设备所在位置,同时,第一接入设备和第二接入设备启动NFC配对检测,当两者之间的距离在NFC的连接范围之内时,两者中的一方可以检测到对方发送的NFC配对信号,此时第一接入设备可以确定已经到达第二接入设备附近,可以进行接入终端的切换。比如,第二接入设备向控制器请求将终端切换至其它接入设备后,接收控制器返回的第一接入设备的标识,并定时接收NFC配对信号,将接收到的配对信号中包含的设备标识与第一接入设备的标识进行比对,若两者一致,则确认发送该NFC配对信号的设备为第一接入设备,与第一接入设备进行交互以建立NFC连接。
步骤704,第二接入设备向第一接入设备发送待切换终端的认证参数和待 切换终端的信道参数;
待切换终端为与该第二接入设备建立第一连接的终端。
该第一连接可以是待切换终端与第二接入设备之间建立的Wi-Fi连接。其中,当该第二接入设备电量不足时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端,当该第二接入设备接入终端过多需要分流时,该待切换终端可以是与第二接入设备建立Wi-Fi连接的所有终端中指定的部分终端。该认证参数可以用于对待切换终端进行身份认证,比如,该认证参数可以是PMK、PTK或者GTK等,对于认证参数的具体内容,本实施例不做具体限定。
为了简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,使待切换终端能够无缝切换至第一接入设备,第二接入设备还可以通过NFC连接将待切换终端接入第二接入设备所使用的接入信道参数发送给第一接入设备,该信道参数可以是待切换终端的工作信道以及信道带宽等。
步骤706,待切换终端向第一接入设备发送认证请求;
其中,待切换终端的认证请求可以由第一接入设备触发,也可以由第二接入设备触发。具体的,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第二接入设备可以向待切换终端发送包含有第一接入设备的标识的切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求;或者,该认证参数中可以携带待切换终端的标识,当第一接入设备和第二接入设备建立NFC连接,且第二接入设备接收第一接入设备通过NFC连接发送的认证参数后,第一接入设备可以根据待切换终端的标识向待切换终端发送切换通知,或者,第一接入设备还可以根据待切换终端的信道参数向待切换终端发送切换通知,待切换终端接收到该切换通知后,向第一接入设备发送认证请求。
步骤708,第一接入设备根据该认证参数对待切换终端进行认证;
具体的,第一接入设备可以按照待切换终端的信道参数监听认证请求,当接收到某一终端发送的认证请求后,根据第二接入设备发送的认证参数对该终端进行认证,若认证成功,则确定该终端为待切换终端。
步骤710,在认证成功后,第一接入设备根据该信道参数与待切换终端建立第二连接;
该第二连接可以是待切换终端与第一接入设备之间建立的Wi-Fi连接。第 一接入设备在对待切换终端进行认证且认证成功后,可以与该待切换终端建立Wi-Fi连接,并代替第二接入设备为该终端提供网络接入服务。具体的,第一接入设备可以根据该信道参数直接建立与待切换终端之间的Wi-Fi连接,以便待切换终端可以沿用原有的工作信道来接入网络。
步骤712,第一接入设备向待切换终端发送连接成功响应;
在第一接入设备与待切换终端建立Wi-Fi连接之后,第一接入设备可以向待切换终端发送连接成功响应,待切换终端可以通过与第一接入设备之间的Wi-Fi连接接入网络。
步骤714,待切换终端撤销与第二接入设备之间的第一连接。
待切换终端在接收到该连接成功响应之后,还与第二接入设备进行交互,以将其与第二接入设备之间的Wi-Fi连接撤销,从而完成从第二接入设备切换至第一接入设备的过程。
需要说明的是,在待切换终端与第一接入设备建立连接成功,且尚未撤销与第二接入设备之间的连接时,待切换终端通过相同的工作信道同时接入两个接入设备,即待切换终端可以同时接收第一接入设备和第二接入设备发送的数据,且第一接入设备和第二接入设备都可以接收待切换终端发送的数据。为了避免将网络数据重复发送给待切换终端,或者将待切换终端发送的数据重复发送至网络,第一接入设备和第二接入设备之间可以通过NFC连接传递数据标识,当一个接入设备转发某个数据时,将该数据的标识发送给另一接入设备,另一接入设备接收到该数据的标识后,可以忽略该数据,不予转发。
综上所述,本发明实施例提供的终端切换方法,第一接入设备通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的终端切换方法,由于切换前第二接入设备已经向第一接入设备发送了待切换终端的认证参数,减少了切换时终端和第一接 入设备的协商,使得切换的过程更加平滑。
此外,本发明实施例提供的终端切换方法,第一接入设备通过接收该第二接入设备通过该NFC连接发送的信道参数,并根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
请参考图8,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备800可以用于执行如图1或图2所示的方法,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接,该接入设备800可以包括:
第一连接建立模块801,用于与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第二接入设备建立NFC连接;
认证参数接收模块802,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
请求接收模块803,用于接收所述待切换终端发送的认证请求;
认证模块804,用于根据所述认证参数对所述待切换终端进行接入认证;
第二连接建立模块805,用于在所述认证模块804认证成功后与所述待切换终端建立第二连接。
综上所述,本发明实施例提供的接入设备,通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当与第二接入设备之间的距离处于NFC的连接范围内时,表明与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先接收了第二接入设备发送了待切换终端的认证参数,减少了待切换终端切换时的协商步骤,使得切换的过程更加平滑。
请参考图9,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备900可以用于执行如图1或图2所示的方法,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接。该接入设备900为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备900可以包括:
第一连接建立模块901,用于与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第二接入设备建立NFC连接;
认证参数接收模块902,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
请求接收模块903,用于接收所述待切换终端发送的认证请求;
认证模块904,用于根据所述认证参数对所述待切换终端进行接入认证;
第二连接建立模块905,用于在所述认证模块904认证成功后与所述待切换终端建立第二连接。
所述接入设备900还包括:
信道参数接收模块906,用于在所述第二连接建立模块905与所述待切换终端建立第二连接之前,接收所述第二接入设备通过所述NFC连接发送的信道参数,所述信道参数为所述待切换终端接入所述第二接入设备的信道参数;
所述第二连接建立模块905,用于根据所述信道参数与所述待切换终端建立所述第二连接。
所述接入设备900还包括:
响应发送模块907,用于向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
综上所述,本发明实施例提供的接入设备,通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当与第二接入设备之间的距离处于NFC的连接范围内时,表明与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备 时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先接收了第二接入设备发送了待切换终端的认证参数,减少了待切换终端切换时的协商步骤,使得切换的过程更加平滑。
此外,本发明实施例提供的接入设备,通过接收该第二接入设备通过该NFC连接发送的信道参数,并根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至另一接入设备的效果,提高用户体验。
请参考图10,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备1000可以用于执行如图1或图2所示的方法,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接,该接入设备1000可以包括:总线1005,以及连接到总线1005的处理器1001、存储器1002、发射机1003和接收机1004。其中,存储器1002用于存储若干个指令,该若干个指令被配置成由处理器1001执行。
所述处理器1001,用于执行所述若干个指令,当与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,控制所述发射机1003以及所述接收机1004与所述第二接入设备建立NFC连接;
所述接收机1004,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
所述接收机1004,还用于接收所述待切换终端发送的认证请求;
所述处理器1001,用于根据所述认证参数对所述待切换终端进行接入认证;
所述处理器1001,用于在认证成功后,控制所述发射机1003以及所述接收机1004与所述待切换终端建立第二连接。
综上所述,本发明实施例提供的接入设备,通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当与第二接入 设备之间的距离处于NFC的连接范围内时,表明与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先接收了第二接入设备发送了待切换终端的认证参数,减少了待切换终端切换时的协商步骤,使得切换的过程更加平滑。
请参考图11,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备1100可以用于执行如图1或图2所示的方法,当接入第二接入设备的终端需要从第二接入设备切换到其它接入设备时,建立与待切换终端之间的连接。该接入设备1100为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备1100可以包括:总线1105,以及连接到总线1105的处理器1101、存储器1102、发射机1103和接收机1104。其中,存储器1102用于存储若干个指令,该若干个指令被配置成由处理器1101执行。
所述处理器1101,用于执行所述若干个指令,当与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,控制所述发射机1103以及所述接收机1104与所述第二接入设备建立NFC连接;
所述接收机1104,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
所述接收机1104,用于接收所述待切换终端发送的认证请求;
所述处理器1101,用于根据所述认证参数对所述待切换终端进行接入认证;
所述处理器1101,用于在认证成功后,控制所述发射机1103以及所述接收机1104与所述待切换终端建立第二连接。
进一步的,所述接收机1104,还用于接收所述第二接入设备通过所述NFC连接发送的信道参数,所述信道参数为所述待切换终端接入所述第二接入设备的信道参数;
所述处理器1101,用于控制所述发射机1103以及所述接收机1104,根据所述信道参数与所述待切换终端建立所述第二连接。
所述处理器1101,用于控制所述发射机1103向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
综上所述,本发明实施例提供的接入设备,通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当与第二接入设备之间的距离处于NFC的连接范围内时,表明与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先接收了第二接入设备发送了待切换终端的认证参数,减少了待切换终端切换时的协商步骤,使得切换的过程更加平滑。
此外,本发明实施例提供的接入设备,通过接收该第二接入设备通过该NFC连接发送的信道参数,并根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至接入设备的效果,提高用户体验。
请参考图12,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备1200可以用于执行如图3或图4所示的方法,将接入该接入设备1200的终端切换到第一接入设备。该接入设备1200为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备1200可以包括:
第三连接建立模块1201,用于与第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第一接入设备建立NFC连接;
认证参数发送模块1202,用于通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为已经与所述第三连接建立模块1201建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
综上所述,本发明实施例提供的接入设备,通过与第一接入设备建立NFC 连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当与第一接入设备之间的距离处于NFC的连接范围内时,表明与第一接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时与第一接入设备的协商步骤,使得切换的过程更加平滑。
请参考图13,其示出了本发明另一实施例提供的接入设备的设备构成图。该接入设备1300可以用于执行如图3或图4所示的方法,将接入该接入设备1300的终端切换到第一接入设备。该接入设备1300为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备1300可以包括:
第三连接建立模块1301,用于与第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第一接入设备建立NFC连接;
认证参数发送模块1302,用于通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为已经与所述第三连接建立模块1301建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
所述接入设备1300还包括:
信道参数发送模块1303,用于通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所述待切换终端的接入信道参数。
所述接入设备1300还包括:
第一撤销模块1304,用于在所述第一接入设备与所述待切换终端建立所述第二连接之后,撤销与所述待切换终端之间的所述第一连接。
综上所述,本发明实施例提供的接入设备,通过与第一接入设备建立NFC连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切 换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当与第一接入设备之间的距离处于NFC的连接范围内时,表明与第一接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时与第一接入设备的协商步骤,使得切换的过程更加平滑。
此外,本发明实施例提供的接入设备,通过NFC连接向第一接入设备发送信道参数,由第一接入设备根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
请参考图14,其示出了本发明一个实施例提供的接入设备的设备构成图。该接入设备1400可以用于执行如图3或图4所示的方法,将接入该接入设备1400的终端切换到第一接入设备。该接入设备1400为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备1400可以包括:总线1405,以及连接到总线1405的处理器1401、存储器1402、发射机1403和接收机1404。其中,存储器1402用于存储若干个指令,该若干个指令被配置成由处理器1401执行。
所述处理器1401,用于执行所述指令,当与所述第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,控制所述发射机1403以及所述接收机1404与所述第一接入设备建立NFC连接;
所述处理器1401,用于控制所述发射机1403通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为已经与所述接入设备建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
综上所述,本发明实施例提供的接入设备,通过与第一接入设备建立NFC连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当与第 一接入设备之间的距离处于NFC的连接范围内时,表明与第一接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时与第一接入设备的协商步骤,使得切换的过程更加平滑。
请参考图15,其示出了本发明另一实施例提供的接入设备的设备构成图。该接入设备1500可以用于执行如图3或图4所示的方法,将接入该接入设备1500的终端切换到第一接入设备。该接入设备1500为可移动的无线接入设备,比如Wi-Fi机器人。该接入设备1500可以包括:总线1505,以及连接到总线1505的处理器1501、存储器1502、发射机1503和接收机1504。其中,存储器1502用于存储若干个指令,该若干个指令被配置成由处理器1501执行;
所述处理器1501,用于与第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,控制所述发射机1503以及所述接收机1504与所述第一接入设备建立NFC连接;
所述处理器1501,用于控制所述发射机1503通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为与所述接入设备建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
所述处理器1501,用于控制所述发射机1503通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所述待切换终端的接入信道参数。
所述处理器1501,用于在所述第一接入设备与所述待切换终端建立所述第二连接之后,控制所述发射机1503以及所述接收机1504撤销与所述待切换终端之间的所述第一连接。
综上所述,本发明实施例提供的接入设备,通过与第一接入设备建立NFC连接,并通过NFC连接向第一接入设备发送待切换终端的认证参数,由第一接入设备根据该认证参数对待切换终端进行接入认证并在认证成功后与待切换终端建立第二连接,由于NFC连接的距离较近,通常在一米以内,当与第 一接入设备之间的距离处于NFC的连接范围内时,表明与第一接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
进一步,本发明实施例提供的接入设备,由于预先向第一接入设备发送了待切换终端的认证参数,减少了待切换终端切换时与第一接入设备的协商步骤,使得切换的过程更加平滑。
此外,本发明实施例提供的接入设备,通过NFC连接向第一接入设备发送信道参数,由第一接入设备根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
请参考图16,其示出了本发明一个实施例提供的终端的设备构成图。该终端1600可以执行如图5或图6所示的方法,由第二接入设备切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端1600可以包括:
请求发送模块1601,用于向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
第四连接建立模块1602,用于在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
综上所述,本发明实施例提供的终端,通过在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
请参考图17,其示出了本发明另一实施例提供的终端的设备构成图。该终端1700可以执行如图5或图6所示的方法,由第二接入设备切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端可以包括:
请求发送模块1701,用于向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
第四连接建立模块1702,用于在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
所述终端1700还包括:
响应接收模块1703,用于接收所述第一接入设备发送的连接成功响应;
第二撤销模块1704,用于撤销与所述第二接入设备之间的所述第一连接。
综上所述,本发明实施例提供的终端,通过在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
请参考图18,其示出了本发明一个实施例提供的终端的设备构成图。该终端1800可以执行如图5或图6所示的方法,由第二接入设备切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端1800可以包括:总线1805,以及连接到总线1805的处理器1801、存储器1802、发射机1803和接收机1804。其中,存储器1802用于存储若干个指令,该若干个指令被配置成由处理器1801执行;
所述处理器1801,用于控制所述发射机1803向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC 连接发送给所述第一接入设备的参数;
所述处理器1801,用于在所述第一接入设备认证成功后,控制所述发射机1803以及所述接收机1804与所述第一接入设备建立第二连接。
综上所述,本发明实施例提供的终端,通过在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
请参考图19,其示出了本发明另一实施例提供的终端的设备构成图。该终端1900可以执行如图5或图6所示的方法,由第二接入设备切换到第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该终端1900可以包括:总线1905,以及连接到总线1905的处理器1901、存储器1902、发射机1903和接收机1904。其中,存储器1902用于存储若干个指令,该若干个指令被配置成由处理器1901执行;
所述处理器1901,用于向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
所述处理器1901,用于在所述第一接入设备认证成功后,控制所述发射机1903以及所述接收机1904与所述第一接入设备建立第二连接。
所述接收机1904,用于接收所述第一接入设备发送的连接成功响应;
所述处理器1901,用于控制所述发射机1903以及所述接收机1904撤销与所述第二接入设备之间的所述第一连接。
综上所述,本发明实施例提供的终端,通过在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备 之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
如图20所示,其示出了本发明一个实施例提供的智能手机的框图,应该理解的是,图20所示的智能手机2000仅仅是图16至19任一所示的终端的一个范例,并且智能手机2000可以具有比图20中所示的更多的或者更少的部件,可以组合两个或更多的部件,或者可以具有不同的部件配置。图20中所示出的各种部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件、或硬件和软件的组合中实现。
现以智能手机2000为例进行具体的说明,如图20所示,智能手机2000包括至少一个处理器2001、存储器2002、传感器2003、I/O接口2004、定位模块2005、通讯模块2006、至少一个通信总线2007和通讯天线2008。智能手机2000还包括其他功能性的构件,比如:电池模组、有线/无线充电接口等。通信总线2007用于实现这些组件之间的连接通信。存储器2002可能包含非易失性固态存储器和/或动力学的非易失性存储设备,如闪速存储器、可转动的磁盘驱动器。传感器模块2003包含多种传感器,如:接近传感器、加速传感器、电子罗盘传感器、光线传感器等等,用于测量智能手机2000的方位运动状态信息。定位模块2005可以用于执行GPS(Global Positioning System,全球定位系统)定位、WLAN(Wireless Local Area Networks,无线局域网络)定位、基站定位等功能,获取智能手机2000的位置、高度等地理信息等。通讯模块2006可以用于远距通信,如GSM(Global System for Mobile communication,全球移动通信系统)、CDMA(Code Division Multiple Access,码分多址)、GPRS(General Packet Radio Service,通用分组无线服务)、EDGE(Enhanced Data Rate for GSM Evolution,增强型数据速率GSM演进),3G技术如WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access,时分同步码分多址),4G技术如LTE(Long Term Evolution,长期演进)等;通讯模块2006还可以用于近距通信,可以在近距离内与另一个移动智能终端或者穿戴式声音采集装置进行短距无线通信,如ZigBee、UWB、Wi-Fi、Bluetooth、NFC,以及红外通讯。 通讯天线2008用于接收和发送通讯信号。
具体的,I/O接口2004包括用于显示和输入的触摸屏20041、用于输入的I/O键盘20042(可选的)、麦克风20043即为前述的麦克风阵列、扬声器20044等。
具体的,存储器2002包含操作系统20021和应用程序20022,操作系统20021包含各种操作系统程序,用于实现基于硬件的各项操作;应用程序20022包含各种应用程序,用于实现各种应用功能,比如:语音识别程序或语音助手程序,能够根据用户的语音输入的声纹特征,进行用户的安全认证;也可以从输入的用户的语音信号中解析出语义,从而执行相应的功能和操作,比如进行拍照,根据语义查找通讯录里的用户并拨打电话或发短消息,或者接听来电或者对短消息进行回复。
具体的,存储器2002可以用于存储方位运动状态,方位运动状态至少包括接近距离和接近距离变化率,还可以包括水平倾角、水平倾角变化率、加速度变化率和方位角变化率;还可以用于存储声音采集装置采集的声音以及从声音采集装置中获取的语音信号。
进一步的,存储器2002还可以用于存储第一阈值、第二阈值、第三阈值、第四阈值、第五阈值以及水平倾角的预设范围。
可选的,存储器2002还可以用于存储混合语音信号。
处理器2001通过总线2007与各个模块和部件通信。传感器2003检测及获取方位运动状态,处理器2001根据前述实施例中的方法确定声音采集装置。如果确定声音采集装置为麦克风阵列则通过麦克风20043获取声音,将声音转换成语音信号后传输至处理器2001,如果确定声音采集装置为穿戴式声音采集装置,则通过天线2008接收穿戴式声音采集装置采集的声音,转换成语音信号后传输至处理器2001。
本发明实施例提供的智能手机在与第二接入设备建立第一连接时,可以在第一接入设备接收第二接入设备通过NFC连接发送的认证参数后,向第一接入设备发送认证请求,并在第一接入设备根据认证参数认证成功后,与该第一接入设备建立第二连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入 设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果
请参考图21,其示出了本发明一个实施例提供的终端切换系统的系统构成图。该系统可以用于执行如图7所示的方法,将待切换设备由第二接入设备切换至第一接入设备。该第一接入设备和第二接入设备为可移动的无线接入设备,比如Wi-Fi机器人。该系统可以包括:
如图8至11任一所示的第一接入设备10、如图12至15任一所示的第二接入设备20以及至少一个如图16至19任一所示的终端30。
综上所述,本发明实施例提供的终端切换系统,第一接入设备通过与第二接入设备建立近距离无线通讯NFC连接,接收该第二接入设备通过该NFC连接发送的待切换终端的认证参数,在根据该认证参数对待切换终端进行接入认证成功后与待切换终端建立连接,由于NFC连接的距离较近,通常在一米以内,当第一接入设备与第二接入设备之间的距离处于NFC的连接范围内时,表明第一接入设备与第二接入设备之间的距离很小,解决了现有技术中终端从一个无线接入设备切换到另一个无线接入设备时,很可能接入一个位置相对较远的接入设备的问题,达到提高终端切换接入设备后的通信性能和用户体验的效果。
此外,本发明实施例提供的终端切换系统,第一接入设备通过接收该第二接入设备通过该NFC连接发送的信道参数,并根据该信道参数建立第二连接,能够简化终端切换时与设备的交互过程,快速建立第一接入设备与待切换终端之间的Wi-Fi连接,达到使待切换终端无缝切换至第一接入设备的效果,提高用户体验。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (17)

  1. 一种终端切换方法,其特征在于,所述方法包括:
    当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,所述第一接入设备与所述第二接入设备建立NFC连接;
    所述第一接入设备接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
    所述第一接入设备接收所述待切换终端发送的认证请求;
    所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证,并在认证成功后与所述待切换终端建立第二连接。
  2. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    接收所述第二接入设备通过所述NFC连接发送的信道参数,所述信道参数为所述待切换终端的接入信道参数;
    所述在认证成功后与所述待切换终端建立第二连接,包括:
    根据所述信道参数与所述待切换终端建立所述第二连接。
  3. 根据权利要求1所述的方法,其特征在于,所述方法还包括:
    向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
  4. 一种终端切换方法,其特征在于,所述方法包括:
    当第一接入设备与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,所述第二接入设备与所述第一接入设备建立NFC连接;
    所述第二接入设备通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
  5. 根据权利要求4所述的方法,其特征在于,所述方法还包括:
    通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所 述待切换终端的接入信道参数。
  6. 根据权利要求4所述的方法,其特征在于,所述方法还包括:
    在所述第一接入设备与所述待切换终端建立所述第二连接之后,撤销与所述待切换终端之间的所述第一连接。
  7. 一种终端切换方法,其特征在于,所述方法包括:
    待切换终端向第一接入设备发送认证请求,所述待切换终端为与第二接入设备建立第一连接的终端,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
    所述待切换终端在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
  8. 根据权利要求7所述的方法,其特征在于,所述方法还包括:
    接收所述第一接入设备发送的连接成功响应。
  9. 一种接入设备,其特征在于,所述接入设备包括:
    第一连接建立模块,用于与第二接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第二接入设备建立NFC连接;
    认证参数接收模块,用于接收所述第二接入设备通过所述NFC连接发送的待切换终端的认证参数,所述待切换终端为与所述第二接入设备建立第一连接的终端;
    请求接收模块,用于接收所述待切换终端发送的认证请求;
    认证模块,用于根据所述认证参数对所述待切换终端进行接入认证;
    第二连接建立模块,用于在所述认证模块认证成功后与所述待切换终端建立第二连接。
  10. 根据权利要求9所述的接入设备,其特征在于,所述接入设备还包括:
    信道参数接收模块,用于在所述第二连接建立模块与所述待切换终端建立第二连接之前,接收所述第二接入设备通过所述NFC连接发送的信道参数,所 述信道参数为所述待切换终端的接入信道参数;
    所述第二连接建立模块,用于根据所述信道参数与所述待切换终端建立所述第二连接。
  11. 根据权利要求9所述的第一接入设备,其特征在于,所述第一接入设备还包括:
    响应发送模块,用于向所述待切换终端发送连接成功响应,所述连接成功响应用于指示所述待切换终端撤销与所述第二接入设备之间的所述第一连接。
  12. 一种接入设备,其特征在于,包括:
    第三连接建立模块,用于与第一接入设备之间的距离处于近距离无线通讯NFC的连接范围内时,与所述第一接入设备建立NFC连接;
    认证参数发送模块,用于通过所述NFC连接向所述第一接入设备发送待切换终端的认证参数,所述待切换终端为已经与所述第三连接建立模块建立第一连接的终端,所述认证参数用于指示所述第一接入设备根据所述认证参数对所述待切换终端进行接入认证并在认证成功后与所述待切换终端建立第二连接。
  13. 根据权利要求12所述的接入设备,其特征在于,所述接入设备还包括:
    信道参数发送模块,用于通过所述NFC连接向所述第一接入设备发送信道参数,所述信道参数为所述待切换终端的接入信道参数。
  14. 根据权利要求12所述的第二接入设备,其特征在于,所述第二接入设备还包括:
    第一撤销模块,用于在所述第一接入设备与所述待切换终端建立所述第二连接之后,撤销与所述待切换终端之间的所述第一连接。
  15. 一种终端,其特征在于,所述终端包括:
    请求发送模块,用于向第一接入设备发送认证请求,所述认证请求用于指示所述第一接入设备根据认证参数对所述待切换终端进行接入认证,所述认证参数为所述第二接入设备通过近距离无线通讯NFC连接发送给所述第一接入设备的参数;
    第四连接建立模块,用于在所述第一接入设备认证成功后,与所述第一接入设备建立第二连接。
  16. 根据权利要求15所述的终端,其特征在于,所述终端还包括:
    响应接收模块,用于接收所述第一接入设备发送的连接成功响应。
  17. 一种终端切换系统,其特征在于,所述系统包括:
    如权利要求9至11任一所述的第一接入设备、如权利要求12至14任一所述第二接入设备以及至少一个如权利要求15或16所述的终端。
PCT/CN2015/079623 2014-05-27 2015-05-22 终端切换方法、接入设备、终端及系统 Ceased WO2015180591A1 (zh)

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