WO2015089849A1 - Procédé et appareil pour une commutation de réseau - Google Patents

Procédé et appareil pour une commutation de réseau Download PDF

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Publication number
WO2015089849A1
WO2015089849A1 PCT/CN2013/090160 CN2013090160W WO2015089849A1 WO 2015089849 A1 WO2015089849 A1 WO 2015089849A1 CN 2013090160 W CN2013090160 W CN 2013090160W WO 2015089849 A1 WO2015089849 A1 WO 2015089849A1
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WIPO (PCT)
Prior art keywords
network
parameter
terminal
target
ssid
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PCT/CN2013/090160
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English (en)
Chinese (zh)
Inventor
吴健
Original Assignee
华为技术有限公司
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Publication of WO2015089849A1 publication Critical patent/WO2015089849A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface

Definitions

  • the present invention relates to the field of network technologies, and in particular, to a network switching method and apparatus. Background technique
  • WLAN wireless local area network
  • the terminal is from the 3rd Generation Partnership Project (The 3rd Generation Par tner shi p Proj ec t, 3GPP) If the network is switched to the WLAN and the authentication is required, the user cannot enter the WLAN, which makes the WLAN easy to use. In addition, the frequent attempts of the user to access the WLAN may cause signaling storms.
  • 3rd Generation Partnership Project The 3rd Generation Par tner shi p Proj ec t, 3GPP
  • the embodiment of the present invention provides a network switching method and apparatus, which can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading in the process of switching a terminal from a 3GPP network to a WLAN; Adopt another network switching method and device, in the terminal from the WLAN In the process of switching to the 3GPP network, the continuity of the communication service can be guaranteed.
  • an embodiment of the present invention provides a network switching method, including:
  • the first network is a third generation partner plan 3GPP network
  • the second network is a wireless local area network WLAN.
  • the acquiring the first parameter of the terminal and the target service set identifier SSID of the terminal includes:
  • the sending the second parameter to the terminal in the second handover response or the handover command includes:
  • the obtaining the target SS ID includes:
  • the second handover request further includes a WLAN measurement report
  • the WLAN measurement report is included in the packet Including the SS ID and the signal strength corresponding to the SS ID
  • the target SSID is determined according to the SS ID in the WLAN measurement report and the signal strength corresponding to the SSID.
  • the acquiring the first parameter of the terminal and the target service set identifier SSID of the terminal includes:
  • the WLAN measurement report includes the signal strength corresponding to the first parameter, the SSID, and the SSID;
  • the sending the second parameter to the terminal in the second handover response or the handover command includes:
  • the WLAN measurement report further includes a basic target service set identifier BSSID and the BSS ID corresponding to the third possible implementation manner or the fourth possible implementation manner in the first aspect.
  • Signal strength the method further includes:
  • the second parameter further includes the target BSSID, so that the terminal switches from the first network to the target BSSID indication under the target SS ID in the second network according to the second parameter. Access point.
  • the method further includes:
  • the third parameter includes a source cell identifier ID or a service quality Qos information
  • an embodiment of the present invention provides a network switching method, including: Obtaining a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID;
  • Carrying the second parameter in the second handover response or the handover command is sent to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration parameter, so that the terminal obtains the second parameter according to the second parameter
  • the first network switches to the second network.
  • the first network is a wireless local area network (WLAN)
  • the second network is a third generation partnership plan 3GPP network.
  • the acquiring the first parameter of the terminal includes:
  • the second handover request further includes a 3GPP measurement report, where the 3GPP measurement report includes a service access point where the terminal is located. a neighboring cell ID and a signal strength of the neighboring cell; determining the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.
  • the acquiring the first parameter of the terminal includes:
  • the 3GPP measurement report includes the end a neighboring cell ID of the serving access point and a signal strength of the neighboring cell; determining the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell;
  • the method further includes:
  • the third parameter includes an International Mobile Subscriber Identity (IMSSI) or a quality of service Qos;
  • IMSI International Mobile Subscriber Identity
  • Qos Quality of service
  • an embodiment of the present invention provides a network switching apparatus, including:
  • An acquiring unit configured to acquire a first parameter of the terminal, and a target service set identifier SSID of the terminal, where the terminal is located in the first network, where the first parameter includes: an international mobile subscriber identity IMSI or a network access identifier NAI, Media access control MAC address;
  • a sending unit configured to send the first parameter acquired by the acquiring unit to the second network in the first switching request, so that the second network determines to access the second according to the first parameter Key parameter of the network;
  • a receiving unit configured to receive a first handover response sent by the second network, where the first handover response carries the key parameter
  • the sending unit is further configured to: send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the key parameter received by the receiving unit So that the terminal switches from the first network to the second network according to the second parameter.
  • the first network is a 3rd Generation Partnership Project 3GPP network
  • the second network is a wireless local area network WLAN.
  • the acquiring unit includes: a first receiving module, a first acquiring module, and a second acquiring module; a receiving module, configured to receive a second handover request that is sent by the terminal from the first network to the second network, where the second handover request carries the first parameter;
  • the first acquiring module is configured to acquire the first parameter in the second switching request, and the second acquiring module is further configured to acquire the target SS ID.
  • the sending unit is specifically configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the key parameter.
  • the second acquiring module is specifically configured to:
  • the second handover request further includes a WLAN measurement report
  • the WLAN measurement report includes an SS ID and a signal strength corresponding to the SS ID, according to the SS ID and the SSID in the WLAN measurement report.
  • the corresponding signal strength determines the target SSID.
  • the acquiring unit specifically includes: a second receiving module, a third obtaining module, and a determining module;
  • the second receiving module is configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the signal strength corresponding to the first parameter, the SSID, and the SSID;
  • the third acquiring module is configured to acquire the first parameter in the WLAN measurement report, where the determining module is configured to: according to the SSID in the WLAN measurement report and a signal strength corresponding to the SSID, Determining the target SSID;
  • the sending unit is specifically configured to send the handover command to the terminal, where the switching command carries the second parameter, where the second parameter includes the target SSID and the key parameter.
  • the WLAN measurement report further includes a basic target service set identifier BSSID and the BSSID corresponding to the third possible implementation manner or the fourth possible implementation manner of the third aspect.
  • Signal strength the second obtaining module is further configured to use the BSSID according to the BSSID Determining a target BSSID with a signal strength corresponding to the BSS ID;
  • the second parameter further includes the target BSSID, so that the terminal switches from the first network to the target BSSID indication under the target SS ID in the second network according to the second parameter. Access point.
  • the acquiring unit is further configured to acquire a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a service quality Qos information;
  • the sending unit is further configured to send the third parameter to the second network in the first handover request, so that the second network determines whether to allow the terminal according to the third parameter. Switching from the first network to the second network.
  • a fourth aspect of the present invention provides a network switching apparatus, including:
  • An acquiring unit configured to acquire a first parameter of the terminal, where the terminal is located in the first network, where the first parameter includes a target cell identifier ID;
  • a sending unit configured to send the target cell ID acquired by the acquiring unit to the second network in a first handover request, so that the second network determines to access the second according to the target cell ID
  • a receiving unit configured to receive a first handover response sent by the second network, where the first handover response carries the RB reconfiguration parameter
  • the sending unit is further configured to: send the second parameter in the second handover response or the handover command to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration received by the receiving unit a parameter, such that the terminal switches from the first network to the second network according to the second parameter.
  • the first network is a wireless local area network (WLAN), and the second network is a third generation partnership plan 3GPP network.
  • WLAN wireless local area network
  • 3GPP third generation partnership plan
  • the acquiring unit includes: a first receiving module, configured to receive a second handover request sent by the terminal from the first network to the second network;
  • a first determining module configured to determine, according to the second handover request and a preset cell ID, the target cell ID
  • the sending unit is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.
  • the second handover request further includes a 3GPP measurement report, where the 3GPP measurement report includes a service access point where the terminal is located. a neighboring cell ID and a signal strength of the neighboring cell; the first determining module is further configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.
  • the acquiring unit specifically includes: a second receiving module and a second determining module;
  • the second receiving module is configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.
  • the second determining module is configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell;
  • the sending unit is specifically configured to send the switching command to the terminal, where the switching command carries the second parameter.
  • the acquiring unit is further configured to acquire a third parameter of the terminal, where the third parameter includes an international mobile subscriber identity code IMSI or a service quality Qos;
  • the sending unit is further configured to send the third parameter to the second network in the first handover request, so that the second network determines whether to allow the terminal according to the third parameter.
  • the network switching method and device provided by the embodiment of the present invention can obtain the first parameter of the terminal and the target service set identifier SSID of the terminal, and carry the first parameter in the first handover request and send the message to the second network, so that The second network determines a key parameter for accessing the second network according to the first parameter.
  • the network switching method and device provided by the embodiment of the present invention can obtain the first parameter of the terminal, where the first parameter includes the target cell ID, and the target cell ID is carried in the first handover request and sent to the second network. So that the second network determines an RB reconfiguration parameter for accessing the second network according to the target cell ID.
  • FIG. 1 is a flowchart of a network switching method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another network switching method according to another embodiment of the present invention
  • FIG. 3 is a flowchart of another network switching method according to another embodiment of the present invention
  • FIG. 4 is a flowchart of another network switching method according to another embodiment of the present invention
  • FIG. 5 is a flowchart of another network switching method according to another embodiment of the present invention
  • FIG. 7 is a block diagram of another network switching apparatus according to another embodiment of the present invention
  • FIG. 8 is a block diagram of another network switching apparatus according to another embodiment of the present invention
  • FIG. 9 is another embodiment of the present invention
  • FIG. 10 is a block diagram of another network switching apparatus according to another embodiment of the present invention
  • FIG. 11 is a block diagram of another network switching apparatus according to another embodiment of the present invention.
  • the switching module in the embodiments of the present invention may be an independent device, or may be integrated into a wireless local area network (WLAN) or an existing network element of the 3rd Generation Partnership Project (3GPP) network. Among them, such as Access Control (AC), Radio Network Controller (RNC), and Base Station Controller (BSC).
  • WLAN wireless local area network
  • 3GPP 3rd Generation Partnership Project
  • AC Access Control
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • the embodiment of the present invention provides a network switching method.
  • the application scenario of the method is to switch the terminal from the 3GPP network to the WLAN.
  • the execution entity of the method is a switching module. As shown in FIG. 1, the method includes:
  • Step 101 Acquire a first parameter of the terminal and a Service Set Identifier (SSID) of the terminal.
  • SSID Service Set Identifier
  • the terminal When the terminal is located in the first network, that is, the 3GPP network, if the terminal is switched from the 3GPP network to the WLAN, the terminal needs to send the first parameter to the switching module, and the first parameter includes: International Mobile Subscriber Identification Number (International Mobile Subscriber Identification Number) , IMSI) or Network Access Identifier (NAI), Media Access Control (Media)
  • the switching module may determine that the signal strength is the strongest according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID.
  • the SSID is the target SSID, or the SSID that exceeds the set access signal strength threshold is determined as the target SSID.
  • the handover module uses the preset SSID as the target SSID.
  • the default SSID refers to the service set identifier pre-set by the network administrator according to the requirements.
  • the SSID can be China Mobi le (CM) or China Unicom (CU). limited.
  • Step 102 The first port is sent to the second network in the first handover request, so that the second network determines the key parameter of accessing the second network according to the first rule.
  • the second network in this step is a WLAN
  • the first handover request is a handover request from the 3GPP network to the WLAN.
  • the first parameter is sent to the WLAN in the first handover request, so that the WLAN obtains the key parameter of accessing the WLAN according to the IMSI or the NAI and the MAC address in the first parameter, for example,
  • the key parameter may be a pairwise master key security association (Pay rsi se Mas ter Key Security As Soc ia t ion, PMKSA).
  • the IMSI or the NAI in the first parameter may exist at the same time, or only one of them may exist, which has no effect on the WLAN acquiring the key parameter of accessing the WLAN.
  • Step 103 Receive a first handover response sent by the second network, where the first handover response carries a key.
  • the first handover response is a handover response from the 3GPP network to the WLAN.
  • the WLAN After the WLAN obtains the key parameter for accessing the WLAN, the WLAN sends a first handover response to the handover module, and the acquired key parameters are carried in the first handover response and sent to the handover module.
  • Step 104 The second parameter is sent to the terminal in the second handover response or the handover command, where the second parameter includes the target SS ID and the key parameter, so that the terminal switches from the first network to the second network according to the second parameter.
  • the handover module obtains the WLAN transmission. After the first handover response is sent, the second handover response carrying the second parameter is sent to the terminal; when the first handover request initiated by the handover module is obtained, the handover module carries the first The two-parameter switching command is sent to the terminal.
  • the switching module sends the received key parameter of the WLAN to the target SSID obtained in step 101, and forms a second parameter, and carries the second parameter in the second handover response or the handover command, and sends the parameter to the terminal. So that the terminal switches from the 3GPP network to the WLAN according to the second parameter.
  • the network switching method provided by the embodiment of the present invention can obtain the first parameter of the terminal and the target service set identifier SSID of the terminal, and carry the first parameter in the first handover request and send the second parameter to the second network, so that the second network is configured according to the second network.
  • the first parameter determines a key parameter to access the second network. And receiving the first handover response of the carrying key parameter sent by the second network, and carrying the target SSID and the key parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target SSID and the key parameter.
  • the first network is switched to the second network, which can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices.
  • An embodiment of the present invention provides a network switching method.
  • the application scenario of the method is to switch a terminal from a 3GPP network to a WLAN. As shown in FIG. 2, the method includes:
  • Step 201 The switching module receives a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the first parameter and the third parameter.
  • the terminal should be connected to the first network before performing step 201.
  • This step is for the terminal to initiate the handover of the terminal from the first network to the second network, where the first network is a 3GPP network and the second network is a WLAN.
  • the terminal When the terminal is located in the 3GPP network, if the terminal is switched from the 3GPP network to the WLAN, the terminal needs to send the first parameter and the third parameter to the handover module, where the first parameter includes the IMSI or the NAI, the MAC address; the third parameter includes the source cell. Identity (ID) or Qualitative Service (QoS) information.
  • ID Identity
  • QoS Qualitative Service
  • the WLAN measurement report is sent to the switching module, and the WLAN measurement report includes the SSID and the signal strength corresponding to the SSID.
  • Step 202 The switching module receives the WLAN measurement report sent by the terminal, where the WLAN measurement report includes a first parameter, an SSID, and a signal strength corresponding to the SSID and a third parameter.
  • the terminal Before performing step 202, the terminal should be connected to the first network.
  • This step is to switch the terminal from the first network to the second network initiated by the switching module.
  • the terminal When the terminal is in the first network, that is, the 3GPP network, if the switching module considers that the terminal needs to be switched from the 3GPP network to the WLAN, the terminal sends a WLAN measurement report to the switching module, and the 3GPP measurement report includes the first parameter, the first parameter.
  • the WLAN measurement report further includes a basic service set identifier (BSSID) and a signal strength corresponding to the BSSID.
  • BSSID basic service set identifier
  • Step 201 and step 202 are two parallel steps for obtaining two different manners of the first parameter, the third parameter, and the target SSID of the terminal.
  • the step 201 may be performed only when the first parameter, the third parameter, and the target SSID of the terminal are acquired, or only step 202 is performed.
  • Step 202 in the figure is indicated by a dashed box to illustrate step 202 as an optional step; of course, step 201 can also be represented by a dashed box.
  • Step 203 The switching module acquires the first parameter, the third parameter, and the target SSID of the terminal. If the terminal initiates the handover of the terminal from the first network to the second network, if the second handover request carries the first parameter and the third parameter, the second handover request triggers the handover module to acquire the preset SSID, the preset SSID. It is a service set identifier that is preset by the network administrator according to requirements.
  • the SSID can be either CM or CU. This solution is not specifically limited.
  • the SSID with the strongest signal strength is determined as the target SSID according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID, or the determined connection is exceeded.
  • the SSID of the incoming signal strength threshold is the target SSID.
  • the switching module obtains the first parameter, the first parameter, the third parameter, and the SSID and the signal strength corresponding to the SSID in the WLAN measurement report sent by the terminal;
  • the third parameter and the target SSID may be determined according to the BSS ID and the signal strength corresponding to the BSSID. For example, the BSSID with the strongest signal strength can be selected as the target BSS ID, which is not limited herein.
  • Step 204 The switching module sends the first parameter and the third parameter to the second network in the first handover request.
  • Step 205 The second network determines, according to the third parameter, whether the terminal is allowed to switch from the first network to the second network.
  • the third parameter includes a source cell ID or QoS information.
  • the switching module compares the received source cell ID with a preset cell ID to determine whether to allow the terminal to switch from the first network to the second network. For example, the pre-set cell in the handover module is ID1, and if the received source cell is ID1, the terminal is allowed to switch from the first network to the second network; if the received source cell ID is ID2 or ID3, then The terminal is allowed to switch from the first network to the second network.
  • the switching module determines whether to allow the terminal to switch from the first network to the second network according to the received QoS information. For example, the QoS information received by the switching module indicates that the terminal has continuity of services, such as downloading video, etc., to allow the terminal to switch from the first network to the second network; if the QoS information indicates that the terminal is browsing the webpage, The terminal is not allowed to switch from the first network to the second network.
  • step 206 is performed, when the second network determines, according to the third parameter, that the terminal is not allowed to switch from the first network to the second When the network is over, the process ends.
  • Step 206 The second network determines a key parameter for accessing the second network according to the first parameter.
  • the second network determines a key parameter for accessing the second network according to the first parameter, and the key parameter may be PMKSA.
  • Step 207 The second network sends a first handover response carrying the key parameter to the handover module.
  • the first handover response is a handover response of the terminal from the 3GPP network to the WLAN.
  • the key parameter is carried in the first handover response to send the handover module.
  • Step 208: The switching module receives the first handover response sent by the second network, and sends the second parameter to the terminal in the second handover response or the handover command.
  • the second parameter includes the key parameter and the target SSID.
  • the switching module obtains the target BSSID according to the BSS ID in the WLAN measurement report and the signal strength corresponding to the BSSID
  • the second parameter further includes the target BSSID
  • Step 209 The terminal switches from the first network to the second network according to the second parameter.
  • the terminal switches from the first network to the second network according to the key parameter in the second and the target SSID.
  • the terminal switches from the first network to the access point indicated by the target BSSID in the target SSID in the second network according to the second parameter.
  • the method further includes:
  • Step 210 The first network sends an access request message to the local gateway, where the access request message carries a Public Land Mobile Network (PLMN) ID, a cell ID, and a terminal IMSI or NAI.
  • PLMN Public Land Mobile Network
  • the first network is a 3GPP network.
  • Step 211 The local gateway sends a consent access message to the first network, and the access message carries an Internet Protocol (IP) address, a virtual local area network (VLAN), or a tunnel information.
  • IP Internet Protocol
  • VLAN virtual local area network
  • the local gateway allocates tunnel information, such as IP address, VLAN or tunnel information, from the 3GPP network to the local gateway according to the received parameters, such as the PLMN ID, the cell ID, and the terminal IMSI or NAI. So that the 3GPP network and the local gateway can transmit data through the tunnel.
  • tunnel information such as IP address, VLAN or tunnel information
  • Step 212 The first network forwards the data of the terminal to the local gateway, and the local gateway forwards the received terminal data to the first network.
  • step 210 to step 212 the first network currently accessed by the terminal sends information about the service data of the terminal to the local gateway, so that the local gateway saves the information, so that the terminal moves and cuts.
  • the second network may send information such as service data after the terminal accesses the second network to the local gateway, so that service continuity of the terminal can be implemented.
  • step 201 - step 209 is performed. As shown in FIG. 3, in order to make the drawing clear, the dotted line box indicates that step 201 - step 209 is performed. For details, refer to the description of FIG. 2, and no longer - Narration.
  • Step 213 The second network sends an access request message to the local gateway, where the access request message carries an SSID, a BSSID, a terminal IMSI or a NAI, a terminal MAC address, and a handover indication.
  • the second network in this step is a WLAN.
  • Step 214 The local gateway sends a consent access message to the second network, and carries an IP address, a VLAN, or a tunnel information.
  • Step 215 The second network forwards the data of the terminal to the local gateway, and the local gateway forwards the received terminal data to the second network.
  • the data of the terminal in this step is the same as the data of the terminal in step 212.
  • the key parameter can be obtained through the 802.IX Authent authentication process in the prior art, and then the 3GPP network to the WLAN is switched according to the 3GPP network to WLAN handover procedure, and the 3GPP network to the WLAN can also be used according to the 3GPP network to the WLAN.
  • the process of service continuity in the handover process completes the service continuity of the terminal switching from the 3GPP network to the WLAN.
  • the handover of the terminal from the 3GPP network to the WLAN can be completed by using the 802.11r fast handover procedure in the prior art, and then the service continuity of the terminal handover process is ensured by using step 210-step 215 in FIG.
  • the network switching method provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices.
  • the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter.
  • the first network access network and the second network are The access network forwards the data of the terminal to the local gateway, which can ensure the service continuity of the first network to the second network.
  • An embodiment of the present invention provides a network switching method, where an application scenario of the method is to
  • the WLAN switches to the 3GPP network.
  • the method includes:
  • Step 401 Obtain a first parameter of the terminal.
  • the switching module needs to acquire the first parameter, where the first parameter includes the target cell ID.
  • the terminal sends a request for switching from the WLAN to the 3GPP network to the switching module, carrying the 3GPP measurement report to the handover module, the handover module according to the neighboring cell ID of the serving access point where the terminal is located in the 3GPP measurement report, and the neighboring The signal strength of the cell can determine that the cell ID with the strongest signal strength is the target cell ID.
  • the switching module uses the preset cell ID as the target cell ID.
  • Step 402 The target cell ID is carried in the first handover request and sent to the second network, so that the second network determines the radio bearer (Radio Bear, RB) reconfiguration parameter of the second network according to the target cell ID.
  • Radio Bear Radio Bear
  • the second network is a 3GPP network
  • the first handover request is a handover request from the WLAN to the 3GPP network.
  • the switching module obtains the first parameter
  • the target cell ID in the first parameter is carried in the first handover request and sent to the 3GPP network, so that the 3GPP network obtains the RB reconfiguration parameter of accessing the 3GPP network according to the target cell ID.
  • Step 403 Receive a first handover response sent by the second network, where the first handover response carries the RB reconfiguration parameter.
  • the first handover response is a handover response from the WLAN to the 3GPP network.
  • the 3GPP network sends the first handover response to the handover module, and the acquired RB reconfiguration parameter is carried in the first handover response and sent to the handover module.
  • Step 404 Carry the second parameter in the second handover response or the handover command is sent to the terminal, where
  • the two parameters include a target cell ID and an RB reconfiguration parameter, so that the terminal switches from the first network to the second network according to the second parameter.
  • the handover module when the first handover request is initiated by the terminal, the handover module sends a second handover response carrying the second parameter to the terminal after obtaining the first handover response sent by the 3GPP network; when initiated by the handover module After the first handover request, the handover module sends a handover command carrying the second parameter to the terminal after obtaining the first handover response sent by the 3GPP.
  • the switching module sends the RB reconfiguration parameter sent by the 3GPP network to the target cell ID acquired in step 401, and constitutes a second parameter, and carries the second parameter in the second handover response or the handover command. To the terminal, so that the terminal switches from the WLAN to the 3GPP network according to the second parameter.
  • the network switching method provided by the embodiment of the present invention can obtain the target cell ID of the terminal, and the target cell ID is carried in the first handover request and sent to the second network, so that the second network determines to access the second network according to the target cell ID.
  • RB reconfiguration parameters can obtain a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and
  • the RB reconfiguration parameter is switched from the first network to the second network, and the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network can be ensured.
  • the embodiment of the present invention provides a network switching method.
  • the application scenario of the method is to switch the terminal from the WLAN to the 3GPP network. As shown in FIG. 5, the method includes:
  • Step 501 The switching module receives a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the third parameter.
  • the terminal before performing step 501, the terminal should be connected to the first network.
  • This step is for the terminal to initiate the handover of the terminal from the first network to the second network, where the first network is a WLAN and the second network is a 3GPP network.
  • the terminal When the terminal is located in the WLAN, if the terminal is switched from the WLAN to the 3GPP network, the terminal needs to send the third parameter to the switching module, and the third parameter includes the IMSI or the Qos information.
  • the 3GPP measurement report may be sent to the handover module, where the 3GPP measurement report includes the neighbor cell ID of the serving access point where the terminal is located, and the signal strength of the neighboring cell. .
  • Step 502 The handover module receives a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a third parameter, a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.
  • the terminal Before performing step 502, the terminal should be connected to the first network.
  • This step is to switch the terminal from the first network to the second network initiated by the switching module.
  • the terminal is in the first network, that is, WLAN
  • the switching module considers that the terminal needs to be handed over from the WLAN to the 3GPP network
  • the terminal sends a 3GPP measurement report to the switching module.
  • Step 502 in the figure is indicated by a dashed box to illustrate step 502 as an optional step; of course, step 501 can also be represented by a dashed box.
  • Step 503 The switching module acquires a third parameter of the terminal and a first parameter.
  • the first parameter includes a target cell ID.
  • the second handover request triggers the handover module to acquire the preset cell ID as the target cell ID.
  • the target cell ID is determined according to the neighbor cell ID of the serving access point where the terminal is located in the GPP measurement report and the signal strength of the neighboring cell.
  • the switching module initiates to switch the terminal from the first network to the second network, the switching module according to the third parameter in the 3GPP measurement report sent by the terminal, the neighboring cell ID of the serving access point where the terminal is located, and the signal of the neighboring cell Intensity, obtain the third parameter and the target cell ID.
  • Step 504 The handover module sends the third parameter and the target cell ID in the first handover request to the second network.
  • Step 505 The second network determines, according to the third parameter, whether to allow the terminal to switch from the first network to the second network.
  • the third parameter includes IMS I or Qos information.
  • IMSI or Qos information can exist at the same time, and any parameter can exist.
  • step 506 is performed, when the second network determines, according to the third parameter, that the terminal is not allowed to switch from the first network to the second When the network is over, the process ends.
  • Step 506 The second network determines, according to the target cell ID, an RB reconfiguration parameter for accessing the second network.
  • Step 508 The switching module receives the first handover response sent by the second network, and sends the second parameter to the terminal in the second handover response or the handover command.
  • the second parameter includes an RB reconfiguration parameter and a target cell ID.
  • Step 509 The terminal switches from the first network to the second network according to the second parameter.
  • the method further includes:
  • Steps 210 to 212 in FIG. 3 are performed first, and steps 501 to 509 are performed in step 212, and then steps 213 to 215 in FIG. 3 are performed.
  • the network switching method provided by the embodiment of the present invention can obtain the target cell ID of the terminal, and the target cell ID is carried in the first handover request and sent to the second network, so that the second network determines to access the second network according to the target cell ID.
  • RB reconfiguration parameters can obtain a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and
  • the RB reconfiguration parameter is switched from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network.
  • the embodiment of the present invention provides a network switching apparatus. As shown in FIG. 6, the apparatus includes: an obtaining unit 601, a sending unit 602, and a receiving unit 603.
  • the obtaining unit 601 is configured to acquire a first parameter of the terminal and a target service set identifier of the terminal
  • the SSID is located in the first network, and the first parameter includes: an International Mobile Subscriber Identity (IMSI) or a Network Access Identity (NAI), and a Media Access Control (MAC) address.
  • IMSI International Mobile Subscriber Identity
  • NAI Network Access Identity
  • MAC Media Access Control
  • the first network is a 3GPP network.
  • the sending unit 602 is configured to carry the first parameter acquired by the acquiring unit 601 in a first handover request and send the second parameter to the second network, so that the second network determines to access the first parameter according to the first parameter.
  • the key parameter of the second network is configured to carry the first parameter acquired by the acquiring unit 601 in a first handover request and send the second parameter to the second network, so that the second network determines to access the first parameter according to the first parameter.
  • the second network is a WLAN.
  • the receiving unit 603 is configured to receive a first handover response sent by the second network, where the first switching response carries the key parameter.
  • the sending unit 602 is further configured to: send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the secret received by the receiving unit 603 a key parameter, such that the terminal switches from the first network to the second network according to the second parameter.
  • the acquiring unit 601 specifically includes: a first receiving module 6011, a first acquiring module 6012, and a second acquiring module 6013.
  • the first receiving module 6011 is configured to receive a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the first parameter.
  • the first obtaining module 6012 is configured to acquire the first parameter in the second switching request.
  • the second obtaining module 6013 is further configured to acquire the target SS ID.
  • the sending unit 602 is specifically configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the secret Key parameter.
  • the second acquiring module 6012 is specifically configured to determine the target SSID according to the preset SSID, or to: if the second handover request further includes a WLAN measurement report, and the WLAN measurement The report includes the SSID and the signal strength corresponding to the SSID, and determining the target SSID according to the SS ID in the WLAN measurement report and the signal strength corresponding to the SSID.
  • the acquiring unit 601 specifically includes: a second receiving module 6014, The three acquisition module 6015 determines the module 6016.
  • the second receiving module 6014 is configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and a signal strength corresponding to the SSID.
  • the third acquisition block 6015 obtains the first parameter in the WLAN measurement report.
  • the determining module 6016 is configured to determine the target SSID according to the S S I D in the WL AN measurement report and the signal strength corresponding to the SSID.
  • the sending unit 602 is specifically configured to send the handover command to the terminal, where the handover command carries the second parameter, where the second parameter includes the target SSID and the key parameter.
  • the WLAN measurement report further includes a basic target service set identifier BSSID and a signal strength corresponding to the BSSID
  • the second obtaining module 6013 is further configured to: according to the BSSID and the signal corresponding to the BSS ID Intensity, determine the target BS SID.
  • the second parameter further includes the target BSSID, so that the terminal switches from the first network to the target BSSID indication under the target SS ID in the second network according to the second parameter. Access point.
  • the acquiring unit 601 is further configured to acquire a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a service quality Qos information;
  • the sending unit 602 is further configured to: send the third parameter to the second network in the first switching request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.
  • the network switching device provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices.
  • the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter.
  • the first network access network and the second network are The access network forwards the data of the terminal to the local gateway, which can ensure the service continuity of the first network to the second network.
  • the embodiment of the invention provides a network switching device. As shown in FIG. 8, the device includes: an obtaining unit 801, a sending unit 802, and a receiving unit 803.
  • the obtaining unit 801 is configured to acquire a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID.
  • the first network is a WLAN.
  • the sending unit 802 is configured to: carry the target cell ID acquired by the acquiring unit 801 in a first handover request, and send the information to the second network, so that the second network determines, according to the target cell ID, access to the The radio bearer RB reconfiguration parameter of the second network.
  • the second network is a 3GPP network.
  • the receiving unit 803 is configured to receive a first handover response sent by the second network, where the first switching response carries the RB reconfiguration parameter.
  • the sending unit 802 is further configured to: send, by the second parameter, a second handover response or a handover command to the terminal, where the second parameter includes the target cell ID and the RB received by the receiving unit 803 Reconfiguring the parameters such that the terminal switches from the first network to the second network according to the second parameter.
  • the acquiring unit 801 includes: a first receiving module 8011, and a first determining module 8012.
  • the first receiving module 8011 is configured to receive a second handover request sent by the terminal from the first network to the second network.
  • the first determining module 8012 is configured to determine the target cell ID according to the second handover request and a preset cell ID.
  • the sending unit 802 is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.
  • the second handover request further includes a 3GPP measurement report, where the 3GPP measurement
  • the quantity report includes a neighboring cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell; the first determining module 8012 is further configured to use, according to the neighboring cell ID, the neighboring cell Signal strength, determining the target cell ID.
  • the acquiring unit 801 specifically includes: a second receiving module 8013, and a second determining module 8014.
  • the second receiving module 8013 is configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.
  • the second determining module 8014 is configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.
  • the sending unit 802 is specifically configured to send the handover command to the terminal, where the handover command carries the second parameter.
  • the acquiring unit 801 is further configured to acquire a third parameter of the terminal, where the third parameter includes an international mobile subscriber identity code IMSI or a service quality Qos;
  • the sending unit 802 is further configured to: send the third parameter to the second network in the first handover request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.
  • the network switching device provided by the embodiment of the present invention can acquire the target cell ID of the terminal, and carry the target cell ID in the first handover request and send the data to the second network, so that the second network determines to access the second network according to the target cell ID.
  • RB reconfiguration parameters can be acquired. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and
  • the RB reconfiguration parameter is switched from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network.
  • the embodiment of the invention provides a network switching device. As shown in FIG. 10, the device includes: a memory 1001, a processor 1002, a transmitter 1003, and a receiver 1004.
  • the memory 1001 is configured to store information including a program routine.
  • the processor 1002 is coupled to the memory 1001, and configured to acquire a first parameter of the terminal and a target service set identifier SSID of the terminal, where the terminal is located in the first network, where the first parameter includes: an international mobile subscriber identity IMSI or Network access identity NAI, media access control MAC address.
  • IMSI international mobile subscriber identity
  • NAI Network access identity
  • the first network in this step is a 3GPP network.
  • the transmitter 1003 is configured to send, in the first handover request, the first parameter to the second network, so that the second network determines, according to the first parameter, a key parameter that accesses the second network.
  • the second network in this step is a WLAN.
  • the receiver 1004 is configured to receive a first handover response sent by the second network, where the first handover response carries the key parameter.
  • the transmitter 1003 is further configured to send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the key parameter, so that The terminal switches from the first network to the second network according to the second parameter.
  • the processor 1002 is further configured to receive a second handover request that is sent by the terminal from the first network to the second network, where the second handover request carries the first parameter, and the The first parameter in the second handover request; acquiring the target SSID.
  • the transmitter 1003 is configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the secret Key parameter.
  • the processor 1002 is further configured to determine the target SSID according to a preset SSID, or if the second handover request further includes a WLAN measurement report, and the WLAN measurement report includes an SSID and the SSID corresponding to the SSID.
  • the signal strength is determined according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID.
  • the processor 1002 is further configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and a signal strength corresponding to the SSID; acquiring the WLAN measurement report.
  • the first parameter in the according to the SSID in the WLAN measurement report And the signal strength corresponding to the SSID, determining the target SSID.
  • the transmitter 1003 is further configured to send the handover command to the terminal, where the handover command carries the second parameter, where the second parameter includes the target SSID and the key parameter.
  • the transmitter 1003 is further configured to determine a target BSSID according to the signal strength corresponding to the BSSID and the BSS ID, if the WLAN measurement report further includes a basic target service set identifier BSSID and a signal strength corresponding to the BSS ID. ;
  • the second parameter further includes the target BSSID, so that the terminal switches from the first network to the target BSSID indication under the target SS ID in the second network according to the second parameter. Access point.
  • the network switching device provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices.
  • the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter.
  • the data of the terminal is forwarded to the local gateway through the first network access network and the second network access network, so that the service continuity of the first network to the second network can be ensured.
  • the embodiment of the present invention provides a network switching apparatus. As shown in FIG. 11, the apparatus includes: a memory 1101, a processor 1102, a transmitter 1103, and a receiver 1104.
  • the memory 1101 is configured to store information including a program routine.
  • the processor 1102 is configured to acquire a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID.
  • the first network is a WLAN.
  • the transmitter 1103 is configured to send the target cell ID to the second network in a first handover request, so that the second network determines to access the radio bearer RB of the second network according to the target cell ID. Reconfigure parameters.
  • the second network is a 3GPP network.
  • the transmitter 1103 is configured to: send, by the second parameter, a second handover response or a handover command to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration parameter, so that the terminal Switching from the first network to the second network according to the second parameter.
  • the processor 1102 is further configured to receive a second handover request sent by the terminal from the first network to the second network, and determine, according to the second handover request and a preset cell ID, Target cell ID.
  • the transmitter 1103 is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.
  • the processor 1102 is further configured to acquire a third parameter of the terminal, where the third parameter includes an International Mobile Subscriber Identity (IMSSI) or a Quality of Service Qos.
  • the transmitter 1103 is further configured to: send the third parameter to the second network in the first handover request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.
  • IMSI International Mobile Subscriber Identity
  • Qos Quality of Service Qos
  • the network switching device provided by the embodiment of the present invention can acquire the target cell ID of the terminal, and carry the target cell ID in the first handover request and send the data to the second network, so that the second network determines to access the second network according to the target cell ID.
  • RB reconfiguration parameters can be acquired from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as the cells may or may not be physical. Units can be located in one place, or they can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

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Abstract

L'invention concerne un procédé et un appareil pour une commutation de réseau, qui se rapportent au domaine technique des réseaux, peuvent résoudre des problèmes de facilité d'utilisation relativement faible et un encombrement de signal résultant d'une distribution de réseau réalisée par utilisation d'un réseau local sans fil (WLAN), et réduisent la contrainte de traitement d'un terminal mobile et d'un côté réseau et réduisent l'ancrage entre des dispositifs de réseau. Les modes de réalisation de la présente invention peuvent acquérir un premier paramètre d'un terminal et un identifiant d'ensemble de services (SSID) cible du terminal, et véhiculent le premier paramètre dans une première requête de commutation à envoyer à un second réseau de telle sorte que le second réseau détermine un paramètre clé d'accès au second réseau selon le premier paramètre. Ensuite, une première réponse de commutation véhiculant le paramètre clé et envoyée par le second réseau est reçue, et le SSID cible et le paramètre clé sont véhiculés dans une seconde réponse de commutation ou une instruction de commutation à envoyer au terminal de telle sorte que le terminal peut être commuté d'un premier réseau au second réseau selon le SSID cible et le paramètre clé. La solution fournie dans les modes de réalisation de la présente invention peut être appliquée à une commutation de réseau.
PCT/CN2013/090160 2013-12-16 2013-12-20 Procédé et appareil pour une commutation de réseau WO2015089849A1 (fr)

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