WO2015043520A1 - Procédé et terminal pour activer un pdn - Google Patents

Procédé et terminal pour activer un pdn Download PDF

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Publication number
WO2015043520A1
WO2015043520A1 PCT/CN2014/087673 CN2014087673W WO2015043520A1 WO 2015043520 A1 WO2015043520 A1 WO 2015043520A1 CN 2014087673 W CN2014087673 W CN 2014087673W WO 2015043520 A1 WO2015043520 A1 WO 2015043520A1
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Prior art keywords
network
pdn
terminal
apn
activate
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PCT/CN2014/087673
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English (en)
Chinese (zh)
Inventor
张晓波
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华为终端有限公司
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Publication of WO2015043520A1 publication Critical patent/WO2015043520A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and a terminal for activating a Packet Data Network (PDN).
  • PDN Packet Data Network
  • LTE Long Term Evolution
  • CS circuit switch
  • EPS Evolved Packet System
  • An Access Point Name is a connection parameter that must be configured when a terminal accesses a network. It determines which access method the terminal accesses to the network.
  • An APN corresponds to a Packet Data Network (PDN), and different APNs are required to access different PDNs.
  • PDN Packet Data Network
  • the terminal After the terminal completes registration in the network, if it needs to use data services, it also activates the corresponding PDN.
  • the Multimedia Messaging Service MMS or MMS
  • MMS Multimedia Messaging Service
  • the terminal cannot activate the PDN, the data service cannot be established and the network cannot be accessed. For example, referring to FIG. 1, if the terminal uses the APN of the 3G network to attempt to activate the PDN in the LTE network, the activation of the PDN may fail, resulting in failure to access the network normally.
  • the embodiment of the present invention provides a method and a terminal for activating a PDN, so that in a multi-network environment, an available APN can be activated and a PDN establishes a data service, so that the user can access the network normally.
  • the defect that the APN does not correspond to the network and cannot access the network in the prior art is overcome.
  • a method for a terminal to activate a PDN including:
  • the terminal sends a request message for activating the PDN to the second network, where the request message includes the APN, and the second network is Any of the available networks outside the network;
  • the terminal receives the response message sent by the second network, determining to activate the PDN successfully, camping on the second network, where the response message includes a return value for indicating that the PDN is activated successfully.
  • the method before the terminal selects to send, to the second network, a request message for activating the PDN, the method further includes:
  • the terminal searches for available networks other than the first network.
  • the terminal is determined to be activated in the first network according to an error return value in the authentication message
  • the reason for the failure of the PDN includes:
  • the terminal determines in the first network The reason for the failure to activate the PDN is an APN error.
  • the second network is The highest level network of available networks outside the first network.
  • the method further includes:
  • the terminal determines that the activation of the PDN in the second network fails and the reason for the failure is an APN error, the terminal sends the activation to any network other than the first network and the second network.
  • PDN request message
  • the terminal fails to activate the PDN after the available network fails, it restores to search for all available networks.
  • a terminal for activating a PDN including:
  • a receiving unit configured to receive an authentication message sent by the first network, where the authentication message includes an error return value for indicating a reason for activating the PDN failure;
  • a determining unit configured to determine, according to the error return value in the authentication message, a reason for failing to activate the PDN in the first network
  • a sending unit configured to send, after the determining unit determines that the reason for the failure of the PDN activation is an APN error, send a request message for activating the PDN to the second network, where the request message includes the APN, where
  • the second network is any one of available networks other than the first network;
  • the receiving unit is further configured to receive a response message sent by the second network, where the response message includes a return value for indicating success of activating the PDN;
  • the determining unit is further configured to determine, according to the response message sent by the second network that is received by the receiving unit, that the activation of the PDN is successful;
  • a searching unit configured to reside in the second network after the determining unit determines that the PDN is successfully activated.
  • the searching unit is further configured to: before the sending unit sends a request message for activating the PDN to the second network, searching for An available network outside the first network.
  • the determining unit is specifically configured to:
  • the error return value in the authentication message is: the service is not scheduled (SERVICE_OPTION_NOT_SUBSCRIBED); or the unavailable APN (MISSING_UNKNOWN_APN); or the user authentication failure (USER_AUTHENTICATION), determining to activate the location in the first network
  • the reason for the failure of the PDN is the APN error.
  • the second network is The highest level of the network in the network outside the first network.
  • the sending The unit is further configured to: in the determining unit, determine that the terminal fails to activate the PDN in the second network, and the reason for the failure is an APN error, except for the first network and the second network. Sending a request message for activating the PDN in any one of the available networks;
  • the searching unit is further configured to: after the determining unit determines that the terminal fails to activate the PDN after all available networks fail, revert to searching for all available networks.
  • An embodiment of the present invention provides a method and a terminal for activating a PDN. After determining that the reason for the failure of the terminal to activate the PDN in the first network is an APN error, the original APN is used to activate the PDN in the second network.
  • an available APN can activate the PDN to establish a data service, so that the user can access the network normally.
  • the PDN cannot be activated, and the network cannot be accessed.
  • FIG. 1 is a schematic diagram of a method for activating a PDN in the prior art
  • FIG. 2 is a schematic diagram of a method for activating a PDN according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another method for activating a PDN according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another method for activating a PDN according to an embodiment of the present invention.
  • FIG. 5 is a structural diagram of an apparatus for activating a PDN terminal according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of another apparatus for activating a PDN terminal according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for a terminal to activate a PDN.
  • the method may include:
  • Step 201 The terminal receives an authentication message sent by the first network, where the authentication message includes an error return value for indicating a failure to activate the PDN.
  • the authentication message may be a message specified by the communication protocol.
  • the Activate PDP context reject message specified in the 3GPP TS 24.008 protocol is generally sent by the network in the form of signaling.
  • Step 202 The terminal determines, according to the error return value in the authentication message, a reason for failing to activate the PDN in the first network.
  • Step 203 If the reason for the failure to activate the PDN is an APN error, the terminal sends a request message for activating the PDN to the second network, where the request message includes an APN, and the second network is an available network other than the first network. Any of them;
  • the service is not scheduled (SERVICE_OPTION_NOT_SUBSCRIBED), which means that the data service corresponding to the APN is not scheduled on the network side;
  • the user authentication failure means that the user authentication is unsuccessful when the APN activates the PDN.
  • the terminal determines that the reason for the failure to activate the PDN in the first network is an APN error.
  • the second network is the highest level network in the network other than the first network.
  • the priority of the available network may be determined by the terminal according to the network parameters, for example, the data rate of different networks may be used to determine the priority level, or may be determined by other parameters of the network, and the present invention does not perform this. Specifically limited.
  • Step 204 If the terminal receives the response message sent by the second network, determine that the PDN is successfully activated, and resides in the second network, where the response message includes a return value for indicating that the PDN is activated successfully.
  • the return value indicating that the activation of the PDN is successful may be Accept.
  • the method may further include: the terminal searching for an available network other than the first network.
  • the method may further include:
  • the terminal determines that the activation of the PDN in the second network fails and the reason for the failure is an APN error, the terminal sends a request to activate the PDN to any one of the available networks except the first network and the second network. Message
  • the terminal fails to activate the PDN after all available networks fail, it reverts to searching for all available networks.
  • the method in this embodiment of the present invention can be applied to a scenario where two or more available networks exist.
  • the search resumes searching for all available networks (ie, searching for the first network and the second network);
  • the network, the second network, the third network, and the fourth network may select to activate the PDN to the second network after the terminal fails to activate the PDN in the first network, and if the terminal fails to activate the PDN in the second network, the terminal may select the third The network activates the PDN. Similarly, after the third network fails to activate the PDN, the terminal may choose to activate the PDN to the fourth network. If the terminal activates the PDN in the first network, the second network, the third network, and the fourth network, the terminal fails. After that, it is restored to search all available networks (ie, search for the first network and the second network, the third network, the fourth network).
  • An embodiment of the present invention provides a method for activating a PDN. After determining that the reason for the terminal to activate the PDN in the first network is an APN error, the original APN is used to activate the PDN in the second network. In a multi-network environment, an available APN can activate the PDN to establish a data service, so that the user can access the Internet normally.
  • the invention overcomes the defect that the PDN cannot be activated when the APN and the PDN do not correspond to the prior art, and thus cannot connect to the network.
  • the scenario 1 is used as an example to describe the method for activating the PDN.
  • the scenario is that the LTE network is deployed by the operator. Therefore, the APN1 of the LTE network is newly provided for the LTE network, and the user activates the PDN in the LTE network.
  • the A operator maintains the 3G network at the same time, and has the APN2 of the corresponding 3G network.
  • User B is the original customer of the A operator, and newly purchased a mobile phone supporting the LTE network.
  • the mobile phone supporting the LTE network receives the 3G network for providing.
  • the APN2 and the mobile phone use the APN2 of the 3G network to access the network, and the activation of the PDN fails, and the data service cannot be used.
  • User C is also the original customer of the A operator.
  • a new mobile phone supporting the LTE network is purchased. If the mobile phone supporting the LTE network receives the APN2 of the 3G network provided by the user, the mobile phone uses the APN2 of the 3G network to access the network. Only the 3G network can access the network normally, but when he walks into a multi-network environment (LTE network, 3G network coexistence), he suddenly cannot access the network.
  • LTE network, 3G network coexistence LTE network, 3G network coexistence
  • the embodiment of the present invention is to solve the problem that the terminal cannot access the network by using the present invention in the scenario 1, as shown in FIG. 3, which may specifically include:
  • Step 301 The mobile phone searches for all available networks
  • the available networks searched by the mobile phone at this time are an LTE network and a 3G network.
  • Step 302 The mobile phone receives the APN2 provided by the user, and activates the PDN in the LTE network by using the APN2.
  • the mobile phone can first select the network with the highest priority according to the priority of the network.
  • the priority of the available network can be determined by the mobile phone according to the network parameters.
  • the data rate of different networks can be used to determine the priority level. It can also be determined by other parameters of the network.
  • only the priority of the network is set according to the data rate, and the first-level network is an LTE network, and the second-level network is a 3G network.
  • the terminal first activates the PDN to the first-level network LTE network, and the terminal activates the APN used by the PDN to the LTE network to provide the user with the APN2.
  • Step 303 The mobile phone receives an authentication message sent by the LTE network, where the authentication message includes an error return value used to indicate a cause of failure of activating the PDN.
  • APN2 is the APN of the 3G network and does not correspond to the PDN of the LTE network currently registered by the mobile phone, the PDN cannot be activated on the LTE network, and the LTE network sends an authentication message including the error return value to the mobile phone, and the mobile phone returns a value according to the error in the authentication message.
  • the reason for determining the failure to activate the PDN is an APN error.
  • Step 304 The mobile phone determines, according to the error return value in the authentication message, a reason for failing to activate the PDN in the LTE network.
  • the mobile phone determines the reason for the failure to activate the PDN in the LTE network. Wrong for APN.
  • Step 305 The mobile phone searches for a network other than the LTE network.
  • the available network searched by the mobile phone has only a 3G network
  • Step 306 The mobile phone uses APN2 to activate the PDN in the 3G network.
  • Step 307 The mobile phone receives a response message sent by the 3G network.
  • the response message includes a return value indicating that the activation of the PDN is successful, such as ACCEPT. Because APN2 and the PDN of the 3G network correspond to each other, APN2 can activate the PDN of the 3G network, and the 3G network sends a response message to the mobile phone;
  • the mobile phone receives the response message sent by the 3G network, and determines that the activation of the PDN is successful.
  • Step 308 The mobile phone resides on the current 3G network.
  • the mobile phone resides on the current 3G network, and does not switch to the LTE network, and can access the network normally.
  • An embodiment of the present invention provides a method for activating a PDN. After determining that the reason for the failure of the mobile phone to activate the PDN in the LTE network is an APN error, the original APN is used to activate the PDN in the 3G network.
  • the APN that implements the 3G network can activate the PDN in the LTE network and the 3G network coexistence environment, so that the mobile phone can access the network normally.
  • scenario 2 is used as an example to describe a method for activating a PDN.
  • the scenario is that the D operator has deployed an LTE network, so that an APN1 of the LTE network is newly provided for the LTE network, and the user activates the PDN in the LTE network.
  • the D operator maintains both the 3G network and the second generation mobile communication (2G) network, and has the APN2 of the corresponding 3G network PDN and the APN3 of the 2G network PDN.
  • User E is the original customer of the D operator.
  • a new mobile phone supporting the LTE network is purchased. If the mobile phone supporting the LTE network receives the APN3 of the 2G network provided by the user, the mobile phone uses the APN3 of the 2G network to access the network.
  • the PDN cannot be activated and the network cannot be accessed.
  • User F is also the original customer of D operator. Newly bought a mobile phone supporting LTE network. If the mobile phone supporting LTE network receives APN3 of 2G network provided by user, the mobile phone uses APN3 of 2G network to access the network. In the 2G network environment, the mobile phone can access the network normally, but when he goes to a multi-network environment (LTE network, 3G network, 2G network coexistence), he suddenly cannot access the network.
  • LTE network 3G network, 2G network coexistence
  • This embodiment describes the problem that the terminal cannot access the network by using the present invention in the scenario 2, and the method includes:
  • Step 401 Searching for all available networks in the mobile search environment
  • the network searched at this time has an LTE network, a 3G network, and a 2G network.
  • Step 402 The mobile phone receives the APN3 provided by the user, and activates the PDN in the LTE network by using the APN3.
  • the mobile phone can first select the network with the highest priority according to the priority of the network.
  • the priority of the available network can be determined by the mobile phone according to the network parameters.
  • the data rate of different networks can be used to determine the priority level. It can also be determined by other parameters of the network.
  • only the priority of the network is set according to the data rate, and the first-level network is an LTE network, the second-level network is a 3G network, and the third-level network is a 2G network. .
  • the terminal first activates the PDN to the first-level network LTE network, and the terminal activates the APN used by the PDN for the user to the LTE network.
  • Step 403 The mobile phone receives an authentication message sent by the LTE network, where the authentication message includes an error return value used to indicate a cause of failure of activating the PDN.
  • APN3 is the APN of the 2G network and does not correspond to the PDN of the LTE network currently registered by the mobile phone, the PDN cannot be activated on the LTE network, and the LTE network sends an authentication message including the error return value to the mobile phone, and the mobile phone returns a value according to the error in the authentication message.
  • the reason for determining the failure to activate the PDN is an APN error.
  • Step 404 The mobile phone determines, according to the error return value in the authentication message, a reason for failing to activate the PDN in the LTE network.
  • the mobile phone determines the reason for the failure to activate the PDN in the LTE network. Wrong for APN.
  • Step 405 The mobile phone searches for a network other than the LTE network.
  • the network searched at this time has a 3G network and a 2G network;
  • Step 406 The mobile phone uses APN3 to activate the PDN in the 3G network.
  • the mobile phone selects to activate the PDN to the network with the highest priority except the LTE network, that is, the mobile phone uses the APN3 to activate the PDN in the 3G network.
  • Step 407 The mobile phone receives an authentication message sent by the 3G network, where the authentication message includes an error return value used to indicate a reason for activating the PDN failure.
  • APN3 is the APN of the 2G network
  • the PDN of the 3G network currently registered with the mobile phone is not Correspondingly, the PDN cannot be activated on the 3G network.
  • the 3G network sends an authentication message including the error return value to the mobile phone.
  • the mobile phone determines that the reason for the failure to activate the PDN is the APN error according to the error return value in the authentication message.
  • Step 408 The mobile phone determines, according to the error return value in the authentication message, the reason for the failure to activate the PDN in the 3G network.
  • the mobile phone determines the reason for the failure to activate the PDN in the 3G network. Wrong for APN.
  • Step 409 The mobile phone searches for a network other than the LTE network and the 3G network.
  • the network searched at this time is only a 2G network
  • Step 410 The terminal uses APN3 to activate the PDN in the 2G network.
  • Step 411 The mobile phone receives a response message sent by the 2G network.
  • the response message includes a return value indicating that the activation of the PDN is successful, such as ACCEPT. Because APN3 and the PDN of the 2G network correspond to each other, APN3 can activate the PDN of the 2G network, and the 2G network sends a response message to the mobile phone;
  • the mobile phone receives the response message sent by the 2G network, and determines that the activation of the PDN is successful.
  • Step 412 The mobile phone resides on the current 2G network.
  • the mobile phone resides on the current 2G network, and does not switch to the LTE network or the 3G network, and can access the network normally.
  • the mobile phone fails to activate the PDN on all available networks. The phone resumes searching for all available networks.
  • the embodiment is only described by taking the existence of three available networks as an example. When there are more than three available networks, the implementation manner is the same as or similar to the embodiment.
  • An embodiment of the present invention provides a method for activating a PDN. After determining that the terminal mobile phone fails to activate the PDN in the LTE network and the 3G network due to an APN error, the original APN is used to activate the PDN in the 2G network. Implement APN with 2G network in LTE network, 3G network and 2G network The PDN is activated in the network coexistence environment to enable users to access the network normally.
  • the terminal 50 for activating a PDN provided by the embodiment of the present invention is used to implement the method shown in FIG. 2.
  • the terminal 50 includes:
  • the receiving unit 501 is configured to receive an authentication message sent by the first network, where the authentication message includes a cause error return value for indicating that the PDN is activated to be failed;
  • a determining unit 502 configured to determine, according to an error return value in the authentication message, a reason for failing to activate the PDN in the first network
  • the determining unit 502 may be specifically configured to: if the error return value in the authentication message is: service not scheduled (SERVICE_OPTION_NOT_SUBSCRIBED); or unavailable APN (MISSING_UNKNOWN_APN); or user authentication failure (USER_AUTHENTICATION), determine The reason for the failure to activate the PDN in the first network is the APN error;
  • the sending unit 503 is configured to send, after the determining unit 502, that the reason for the failure of the PDN activation is an APN error, send a request message for activating the PDN to the second network, where the request message includes an APN, and the second network Any of the available networks outside the network;
  • the second network is a network of the highest level among the available networks except the first network;
  • the priority of the available network may be determined by the terminal according to the network parameters, for example, the data rate of different networks may be used to determine the priority level, or may be determined by other parameters of the network, and the present invention does not perform this. Specifically limited.
  • the receiving unit 501 is further configured to: receive a response message sent by the second network, where the response message includes a return value used to indicate that the PDN is activated successfully;
  • the determining unit 502 is further configured to determine, according to the response message sent by the second network received by the receiving unit 501, that the activation of the PDN is successful;
  • the searching unit 504 is configured to reside in the second network after the determining unit 502 determines that the PDN is successfully activated.
  • searching unit 504 is further configured to search for an available network other than the first network before the sending unit 503 sends a request message for activating the PDN to the second network;
  • the sending unit 503 is further configured to: if the determining unit 502 determines that the terminal is in the first The activation of the PDN in the second network fails and the reason for the failure is an APN error, and a request message for activating the PDN is sent to any one of the available networks except the first network and the second network;
  • the searching unit 504 is further configured to, after the determining unit 502 determines that the terminal fails to search for all available networks after all available network activation PDNs fail.
  • the terminal 50 of the embodiment of the present invention may be applied to a scenario where there are two or more available networks.
  • the terminal 50 When there are only two available networks, that is, the first network and the second network, when the terminal 50 is After both the first network and the second network fail to activate the PDN, the terminal 50 resumes searching for all available networks (ie, searching for the first network and the second network);
  • the terminal 50 may select the first The second network activates the PDN. If the terminal 50 fails to activate the PDN after the second network fails, the terminal 50 may choose to activate the PDN to the third network. Similarly, after the third network fails to activate the PDN, the terminal 50 may choose to activate the PDN to the fourth network. After the terminal 50 fails to activate the PDN in the first network, the second network, the third network, and the fourth network, the terminal 50 resumes searching for all available networks (ie, searching for the first network and the second network, the third network, and the Four networks).
  • the embodiment of the present invention provides a terminal 50 for activating a PDN. After determining that the reason for the terminal 50 to activate the PDN in the first network is an APN error, the original APN is used to activate the PDN in the second network. In a multi-network environment, an available APN can activate the PDN to establish a data service, so that the user can access the network normally. The defect that the APN cannot access the network when the APN does not correspond to the PDN is overcome.
  • the embodiment of the present invention provides another terminal 50 for activating an APN.
  • the method may include:
  • Memory 602 can include read only memory and random access memory and provides instructions and data to processor 601. A portion of memory 602 may also include non-volatile line random access memory (NVRAM).
  • NVRAM non-volatile line random access memory
  • Transmitter 603 and receiver 604 may generally be the transmit and receive antennas of the terminal.
  • the receiver 604 is configured to receive an authentication message sent by the first network, where the authentication message includes a cause error return value for indicating that the APN is activated to fail;
  • the processor 601 is configured to determine, according to an error return value in the authentication message, a reason for failing to activate the APN in the first network;
  • the transmitter 603 is configured to: when the processor 601 determines that the reason for the failure to activate the APN is an APN error, send a request message for activating the APN to the second network, where the request message includes the APN, and the second network is available in addition to the first network. Any of them;
  • the receiver 604 is further configured to receive a response message sent by the second network, where the response message includes a return value used to indicate that the PDN is activated successfully.
  • the processor 601 is further configured to determine, according to the response message sent by the second network that is received by the receiver 604, that the activation of the PDN is successful;
  • the processor 601 is further configured to: after determining that the PDN is successfully activated, camping on the second network, where the response message includes a return value indicating that the activation of the PDN is successful.
  • the processor 601 is further configured to search for an available network other than the first network
  • the second network is the highest level network in the network other than the first network.
  • the priority of the available network may be determined by the terminal according to the network parameters, for example, the data rate of different networks may be used to determine the priority level, or may be determined by other parameters of the network, and the present invention does not perform this. Specifically limited.
  • the transmitter 603 sends an activation to any one of the available networks except the first network and the second network. PDN request message;
  • the processor 601 determines that the terminal has failed to activate the PDN on all available networks, the processor 601 reverts to searching for all available networks.
  • the terminal 50 of the embodiment of the present invention may be applied to a scenario where there are two or more available networks.
  • the first network and the second network when the terminal 50 is After both the first network and the second network fail to activate the PDN, the search resumes searching for all available networks (ie, searching for the first network and the second network);
  • the terminal 50 may select the first The second network activates the PDN, if the terminal 50 activates the PDN in the second network. After the failure, the PDN may be activated to the third network. Similarly, after the third network fails to activate the PDN, the terminal 50 may select to activate the PDN to the fourth network, if the terminal 50 is in the first network, the second network, and the third. After the activation of the PDN in the network and the fourth network fails, the search is resumed to search for all available networks (ie, searching for the first network and the second network, the third network, and the fourth network).
  • the processor 601 may determine, according to the error return value received by the receiver 604, whether the reason for the terminal failure to activate the PDN in the first network is an APN error, for example, if the error returned by the receiver 604 is:
  • the processor 601 can then determine that the reason for the terminal to fail to activate the PDN in the first network is an APN error.
  • the embodiment of the present invention provides a terminal 50 for activating a PDN. After determining that the reason for the terminal 50 to activate the PDN in the first network is an APN error, the original APN is used to activate the PDN in the second network. In a multi-network environment, an available APN can activate the PDN to establish a data service, so that the user can access the network normally. The defect that the APN cannot access the network when the APN does not correspond to the PDN is overcome.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé et un terminal pour activer un PDN, qui ont trait au domaine des communications, et moyennant lesquels le PDN peut être activé simplement par un APN disponible et établit ensuite un service de données dans un environnement multi-réseau, de manière qu'un utilisateur accède normalement à un réseau. L'invention vise à aborder le problème dans l'état de la technique, selon lequel, quand un APN ne correspond pas à un PDN, le PDN ne peut pas être activé si bien qu'il n'y a pas moyen d'accéder à un réseau. Le procédé adopté dans les modes de réalisation de la présente invention comprend les étapes suivantes: un terminal reçoit un message d'authentification envoyé par un premier réseau; en fonction d'une valeur de retour d'erreur dans le message d'authentification, le terminal détermine une raison de l'échec d'activation du PDN dans le premier réseau; si la raison de l'échec d'activation du PDN est une erreur de nom de point d'accès (APN), alors le terminal envoie un message de requête d'activation du PDN à un second réseau; et s'il reçoit un message de réponse envoyé par le second réseau, le terminal détermine que le PDN est activé avec succès, et réside dans le second réseau, le message de réponse comprenant une valeur de retour utilisée pour indiquer que le PDN est activé avec succès.
PCT/CN2014/087673 2013-09-30 2014-09-28 Procédé et terminal pour activer un pdn WO2015043520A1 (fr)

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