WO2014000678A1 - 分组数据网连接建立方法和设备 - Google Patents

分组数据网连接建立方法和设备 Download PDF

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Publication number
WO2014000678A1
WO2014000678A1 PCT/CN2013/078275 CN2013078275W WO2014000678A1 WO 2014000678 A1 WO2014000678 A1 WO 2014000678A1 CN 2013078275 W CN2013078275 W CN 2013078275W WO 2014000678 A1 WO2014000678 A1 WO 2014000678A1
Authority
WO
WIPO (PCT)
Prior art keywords
twan
user equipment
apn
pdn
request message
Prior art date
Application number
PCT/CN2013/078275
Other languages
English (en)
French (fr)
Inventor
高晨亮
段小嫣
金辉
树贵明
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP13809544.3A priority Critical patent/EP2836025B1/en
Publication of WO2014000678A1 publication Critical patent/WO2014000678A1/zh
Priority to US14/531,908 priority patent/US9648646B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5007Internet protocol [IP] addresses
    • H04L61/503Internet protocol [IP] addresses using an authentication, authorisation and accounting [AAA] protocol, e.g. remote authentication dial-in user service [RADIUS] or Diameter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04Registration at HLR or HSS [Home Subscriber Server]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Definitions

  • the present invention relates to communications technologies, and in particular, to a packet data network connection establishing method and apparatus.
  • a user equipment User Equipment, UE
  • EPS Evolved Packet System
  • TWAN Trusted Wireless Local Area Networks Access Network
  • EPC Evolved Packet Core
  • the embodiments of the present invention provide a method and a device for establishing a packet data network connection, which are implemented to establish an additional or non-default APN PDN connection for a user equipment, so as to improve a network access range of the user equipment.
  • an embodiment of the present invention provides a method for establishing a packet data network connection, including: a trusted wireless local area network access network TWAN device receives a trigger message sent by a user equipment;
  • the TWAN device acquires an access point name APN from the user equipment;
  • the TWAN device sends a setup session request message carrying the APN to the PDN gateway;
  • the TWAN device receives, by the TWAN device, an establishment session response message carrying an IP address returned by the PDN gateway;
  • the TWAN device sends the IP address to the user equipment.
  • the embodiment of the present invention further provides a method for establishing a packet data network connection, including: determining, by the user equipment, a PDN type of a connection to be established;
  • the user equipment sends a trigger message carrying the access point name APN to the trusted wireless local area network access network TWAN device according to the determined PDN type, where the trigger message triggers the TWAN device to send the PDN gateway to carry the establishment of the APN.
  • a session request message the TWAN device receives an establishment session response message carrying an IP address returned by the PDN gateway;
  • the user equipment receives the IP address sent by the TWAN device.
  • the embodiment of the present invention further provides a method for establishing a packet data network connection, including: determining, by the user equipment, a PDN type of a connection to be established;
  • the user equipment accesses the trusted wireless local area network according to the determined PDN type
  • the TWAN device sends a trigger message
  • the user equipment sends a response message carrying the APN to the TWAN device, where the response message triggers the TWAN device to send a setup session request message carrying the APN to the PDN gateway, and receives the carried back by the PDN gateway.
  • the user equipment receives the IP address sent by the TWAN device.
  • the embodiment of the present invention further provides another method for establishing a packet data network connection, including: determining, by the user equipment, a PDN type of a connection to be established;
  • the user equipment sends a request message carrying the APN to the TWAN device, where the request message triggers the TWAN device to send a setup session request message carrying the APN to the PDN gateway, and receives the carried back by the PDN gateway. Establishing a session response message for the IP address;
  • the user equipment receives the IP address sent by the TWAN device.
  • the embodiment of the invention further provides a trusted wireless local area network access network device, comprising: a receiving module, configured to receive a trigger message sent by the user equipment; An obtaining module, configured to acquire an access point name APN from the user equipment, and a sending module, configured to send, to the packet data network PDN gateway, a setup session request message that carries the APN;
  • the receiving module is further configured to receive a session establishment response message carrying an IP address returned by the PDN gateway;
  • the sending module is further configured to send the IP address to the user equipment.
  • the embodiment of the invention further provides a user equipment, including:
  • a determining module configured to determine a packet data network PDN type of the connection to be established;
  • a sending module configured to send a trigger message to the trusted wireless local area network access network TWAN device according to the determined PDN type, where the trigger message triggers the TWAN device Sending a setup session request message carrying the APN to the PDN gateway, where the TWAN device receives an establishment session response message carrying an IP address returned by the PDN gateway;
  • a receiving module configured to receive the IP address sent by the TWAN device.
  • the embodiment of the invention further provides another user equipment, including:
  • a determining module configured to determine a packet data network PDN type to be established
  • a sending module configured to send a trigger message to the trusted wireless local area network access network TWAN device according to the determined PDN type
  • a receiving module configured to receive a request message sent by the TWAN device, where the sending module is further configured to send a response message carrying the APN to the TWAN device, where the response message triggers the TWAN device to send to the PDN gateway Carrying a setup session request message carrying the APN, and receiving an establishment session response message carrying an IP address returned by the PDN gateway;
  • the receiving module is further configured to receive the IP address sent by the TWAN device.
  • the embodiment of the invention further provides another user equipment, including:
  • a determining module configured to determine a PDN type of the connection to be established
  • a sending module configured to send a trigger message to the trusted wireless local area network access network TWAN device according to the determined PDN type
  • the sending module is further configured to send a request message carrying the APN to the TWAN device, where the request message triggers the TWAN device to send a setup session request message carrying the APN to a PDN gateway, and receive the PDN.
  • the IP address returned by the gateway Establish a session response message;
  • a receiving module configured to receive the IP address sent by the TWAN device.
  • the method and device for establishing a packet data network connection provided by the embodiment of the present invention, after receiving the trigger message sent by the user equipment, the TWAN device initiates a setup session request message carrying the acquired APN to the PDN gateway, so as to establish an additional PDN connection for the user equipment. Or a non-default APN PDN connection to improve the network access range of the user device.
  • an embodiment of the present invention further provides a method for establishing a packet data network connection, including:
  • the trusted WLAN access network obtains the access point name APN from the user equipment, and obtains the subscription information of the user equipment from the home subscriber server/authentication authorization charging HSS/AAA;
  • the TWAN device sends the IP address to the user equipment.
  • the embodiment of the present invention further provides a trusted wireless local area network access network device, including: an obtaining module, configured to acquire an access point name APN from a user equipment, and obtain the user from a home user server/authentication authorization charging HSS/AAA Equipment contract information;
  • a determining module configured to determine a packet data network PDN gateway according to at least the APN and the subscription information
  • a sending module configured to send, to the determined PDN gateway, an establishment session request message carrying the APN
  • a receiving module configured to receive a setup session response message carrying an IP address returned by the determined PDN gateway
  • the sending module is further configured to send the IP address to the user equipment.
  • Method and device for establishing PDN connection of packet data network provided by embodiment of the present invention,
  • the TWAN device is based on the APN obtained from the user equipment and the user setting obtained from the HSS/AAA.
  • the subscription information of the backup determines the PDN gateway, and initiates a setup session request message carrying the acquired APN to the determined PDN gateway, so as to establish an additional PDN connection or a non-default APN PDN connection for the user equipment, so as to improve the network access range of the user equipment. .
  • FIG. 1 is a flow chart of an embodiment of a method for establishing a packet data network connection according to the present invention
  • FIG. 2 is a flow chart of still another embodiment of a method for establishing a packet data network connection according to the present invention
  • FIG. 3 is a flow chart of still another embodiment of a method for establishing a packet data network connection according to the present invention.
  • FIG. 4 is a flow chart of another embodiment of a method for establishing a packet data network connection according to the present invention.
  • FIG. 5 is a flow chart of still another embodiment of a method for establishing a packet data network connection according to the present invention.
  • FIG. 6 is a flow chart of another embodiment of a method for establishing a packet data network connection according to the present invention.
  • FIG. 7 is a flow chart of another embodiment of a method for establishing a packet data network connection according to the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a trusted wireless local area network access network device according to the present invention.
  • FIG. 9 is a schematic structural diagram of another embodiment of a trusted wireless local area network access network device according to the present invention.
  • FIG. 10 is a schematic structural diagram of an embodiment of a user equipment according to the present invention
  • FIG. FIG. 11 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention
  • FIG. 12 is a schematic structural diagram of another embodiment of a user equipment according to the present invention
  • FIG. 13 is a schematic diagram of a trusted wireless local area network access network gateway provided by the present invention
  • the user equipment referred to in this application may be a device capable of providing voice and/or data connectivity, a handheld device with wireless connectivity, or other processing device connected to a wireless modem.
  • the wireless user equipment can communicate with one or more core networks via a wireless access network (eg, RAN, Radio Access Network), such as a mobile phone (or "cellular" phone), portable, pocket, handheld, Computer built-in or in-vehicle mobile devices, Personal Communication Service (PCS), cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs) , Personal Digital Assistant) and other devices.
  • a wireless user equipment may also be referred to as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point. , Remote Terminal, Access Terminal, etc.
  • FIG. 1 is a flow chart of an embodiment of a method for establishing a packet data network connection according to the present invention. As shown in FIG. 1, the method includes:
  • the S10U trusted wireless local area network (TWAN) device receives the trigger message sent by the user equipment. 5102.
  • the TWAN device obtains an access point name (APN) from the user equipment.
  • APN access point name
  • the TWAN device sends a setup session request message carrying the APN to the PDN Gateway (P-GW).
  • P-GW PDN Gateway
  • the TWAN device receives a session establishment response message carrying an IP address returned by the PDN gateway.
  • the TWAN device sends the IP address to the user equipment.
  • the TWAN device When the user equipment needs to establish a PDN connection, the TWAN device usually obtains the APN from the Home Subscriber Server (HSS) on the network side, thereby establishing a PDN connection for the default APN for the user equipment.
  • HSS Home Subscriber Server
  • the user equipment may initiate a corresponding trigger message to the TWAN device according to the type of the PDN that is to be established. For example, if the user equipment wants to establish an Internet Protocol (IP) version 4 IPV4 type PDN connection, the user equipment can send a Dynamic Host Configuration Protocol (DHCP) version 4 to the TWAN device. DHCPV4 request message or Router Solicitation (RS) or Neighbor Solicitation (NS); if the user equipment wants to establish an IPV6 type PDN connection, the user equipment can send a DHCPV6 request message or RS to the TWAN device or Neighbor request> Shake.
  • IP Internet Protocol
  • RS Router Solicitation
  • NS Neighbor Solicitation
  • the TWAN device may obtain the APN from the user equipment, and after receiving the trigger message sent by the user equipment, may send a setup session request message to the PDN gateway according to the APN obtained from the user equipment, where the setup session request message carries the slave user equipment.
  • the obtained APN after the TWAN device receives the setup session response message carrying the IP address returned by the PDN gateway, the TWAN device can send the IP address to the user equipment, so that an additional or non-establishment is established between the user equipment and the PDN gateway.
  • the PDN connection of the default APN may be used to send a setup session request message to the PDN gateway according to the APN obtained from the user equipment, where the setup session request message carries the slave user equipment.
  • the obtained APN after the TWAN device receives the setup session response message carrying the IP address returned by the PDN gateway, the TWAN device can send the IP address to the user equipment, so that an additional or non-establishment is established between the user equipment and the PDN gateway.
  • the user equipment can carry the APN in the trigger message sent to the TWAN device, that is, the TWAN device can obtain the APN from the start message.
  • the TWAN device may send a request message to the user equipment to request to acquire the APN; further, the TWAN device may receive the carried APN sent by the user equipment. The response message, the TWAN device obtains the APN from the response message. Among them, in the TWAN device After receiving the trigger message sent by the user equipment, determining whether the user equipment has passed
  • the WLAN establishes the PDN connection. If the PDN connection information of the user equipment already exists in the subscription data in the HSS/Authentication, Authorization, Accounting, and AAA, the TWAN device can determine that the user equipment has passed. The WLAN establishes a PDN connection; or, after the user equipment establishes the PDN connection through the WLAN, the information of the user equipment can be saved in the WLAN. Therefore, the TWAN device can also determine whether the user equipment has passed according to the user equipment information saved in the WLAN. The WLAN establishes a PDN connection. If the user equipment has established a PDN connection, then the trigger message currently received by the TWAN requests an additional PDN connection.
  • the TWAN device may further receive a request message carrying an APN sent by the user equipment, and the TWAN device obtains the APN from the request message.
  • the user equipment may also send a request message carrying the APN to the TWAN device.
  • setup session request message sent by the TWAN device to the PDN gateway may also carry other information such as the PDN type.
  • the trigger message sent by the user equipment to the TWAN device is determined by the user equipment to determine the PDN type established. Therefore, the TWAN device After receiving the trigger message sent by the user equipment, the type of the PDN that the user equipment requests to establish may be determined according to the type of the trigger message.
  • the Bay ijPDN type is IPV4; if the trigger message received by the TWAN device is a DHCPV6 request message, the Bay ijPDN type is IPV6; if the TWAN device receives the trigger message For the DHCPV4V6 request message, the Bay ijPDN type is IP 6.
  • the TWAN device may send a setup session request message to the PDN gateway when determining that the APN is a non-default APN.
  • the information about the established PDN connection of the user equipment saved locally by the TWAN device includes the default APN information. Therefore, the TWAN device can determine whether the APN obtained from the user equipment is the default APN according to the information about the locally saved PDN connection. In a In an implementation scenario, if the TWAN device determines that the APN obtained from the user equipment is the default APN, and the PDN type requested by the user equipment is allocated to the user equipment, the TWAN device may not send a setup session request message to the PDN gateway; In an implementation scenario, if the TWAN device determines that the APN obtained from the user equipment is not the default APN, and the PDN type information requested by the user equipment has not been allocated to the user equipment, the TWAN device may send a setup session request message to the PDN gateway.
  • the packet data network (PDN) connection establishment method provided by the embodiment, after receiving the trigger message sent by the user equipment, the TWAN device initiates a setup session request message carrying the acquired APN to the PDN gateway according to the APN obtained from the user equipment, and implements The user equipment establishes an additional PDN connection or a PDN connection of a non-default APN to improve the network access range of the user equipment.
  • PDN packet data network
  • the S20U user equipment determines the packet data network (PDN) type of the connection to be established.
  • PDN packet data network
  • the user equipment sends a trigger message carrying an access point name (APN) to the trusted wireless local area network (TWAN) device according to the determined PDN type, and the trigger message triggers the TWAN device to the PDN gateway (PDN Gateway, P-GW).
  • PDN Gateway PDN Gateway
  • the user equipment receives an IP address sent by the TWAN device.
  • the user equipment may initiate a corresponding trigger message to the TWAN device according to the type of PDN that is to be established. For example, if the user equipment wants to establish an IPV4 type PDN connection, the user equipment may send a DHCPV4 request message or an RS or a neighbor request message to the TWAN device; if the user equipment wants to establish an IPV6 type PDN connection, the user equipment may Sending a DHCPV6 request message or an RS or a neighbor request to the TWAN device, the user equipment may directly carry the APN in the trigger message, so that after the TWAN device receives the trigger message carrying the APN, the TWAN device may initiate a setup session request message carrying the APN to the PDN gateway. .
  • FIG. 3 is a flowchart of still another embodiment of a method for establishing a packet data network connection according to the present invention. As shown in FIG. 3, the method includes:
  • the S30U user equipment determines a packet data network (PDN) type to be established
  • S302 The user equipment sends a trigger message to the trusted wireless local area network access network (TWAN) device according to the determined PDN type.
  • TWAN trusted wireless local area network access network
  • S303 The user equipment receives the request message sent by the TWAN device.
  • the user equipment sends a response message carrying the APN to the TWAN device, where the response message triggers the TWAN device to send a setup session request message carrying the APN to the PDN gateway (P-GW), and receives the IP address returned by the PDN gateway.
  • P-GW PDN gateway
  • the user equipment receives an IP address sent by the TWAN device.
  • the difference between the embodiment and the embodiment shown in FIG. 2 is that after the user equipment sends a trigger message to the TWAN device according to the PDN type that needs to be established, if the user equipment receives the request message sent by the TWAN device for requesting to acquire the APN, The user equipment may return a response message carrying the APN to the TWAN device, so that after receiving the trigger message carrying the APN, the TWAN device may initiate a setup session request to carry the APN to the PDN gateway.
  • the method for establishing a PDN connection provided by the embodiment, after receiving the trigger message sent by the user equipment to the TWAN device, if receiving the request message sent by the TWAN device, the device may return a response message carrying the APN to the TWAN device, so that the TWAN can be sent to the PDN gateway.
  • the establishment of the session establishment request message carrying the acquired APN is implemented to establish an additional PDN connection or a PDN connection of the non-default APN for the user equipment, so as to improve the network access range of the user equipment.
  • 4 is a flow chart of another embodiment of a method for establishing a packet data network connection according to the present invention As shown in Figure 4, the method includes:
  • the S40U user equipment determines a packet data network (PDN) type to be established
  • S402 The user equipment sends a trigger message to the trusted wireless local area network (TWAN) device according to the determined PDN type.
  • TWAN trusted wireless local area network
  • the user equipment sends a request message carrying an APN to the TWAN device, where the request message triggers the TWAN device to send a setup session request message carrying the APN to the PDN gateway (P-GW), and receives the IP address returned by the PDN gateway. Establish a session response message;
  • the user equipment receives an IP address sent by the TWAN device.
  • the user equipment may also send a request message carrying the APN to the TWAN device, so that the TWAN device receives the carry message.
  • the PDN gateway may initiate a setup session request message carrying the APN.
  • the PDN connection establishment method after the trigger message sent by the user equipment to the TWAN device, may return a request message carrying the APN to the TWAN device, so that the TWAN can initiate the establishment of the acquired APN to the PDN gateway.
  • the session request message is implemented to establish an additional PDN connection or a non-default APN PDN connection for the user equipment to improve the network access range of the user equipment.
  • FIG. 5 is a flow chart of still another embodiment of a method for establishing a packet data network connection according to the present invention. As shown in FIG. 5, the method includes:
  • the S50U user equipment determines the packet data network (PDN) type of the connection to be established.
  • PDN packet data network
  • the user equipment sends a hornworm message to the trusted wireless local area network (TWAN) device.
  • TWAN trusted wireless local area network
  • the user equipment and the HSS/AAA perform an EAP authentication process.
  • S503 is an optional step.
  • the TWAN device determines whether the user equipment has established a PDN connection; if the user equipment has established a PDN connection and the trigger message carries the APN, then S507 is performed; if the user equipment has established a PDN connection and if the trigger message does not carry the APN, execute S505; If the user equipment has not established a PDN connection, S509 is performed. S505.
  • the TWAN device sends a request message to the user equipment, where the request message is used to request to obtain an APN.
  • the request message may be a Generic Advertisement Service Access Network Query Protocol (GAS-ANQP Query) message, which carries 3G Cellular Network information, and the request message may also be Other news of GAS-ANQP are not listed one by one.
  • GAS-ANQP Query Generic Advertisement Service Access Network Query Protocol
  • the user equipment sends a response message to the TWAN device, where the response message carries the APN.
  • the response message of the request message may be a GAS-ANQP Query response, and the response message carries an APN.
  • GAS-ANQP response messages are also different, and are not listed here.
  • the S505 and the S506 may also be: the user equipment sends a request message carrying the APN to the TWAN device.
  • S504-S506 is a process in which the TWAN device acquires the APN from the user equipment. It should be noted that the process may be performed before the EAP or after the EAP.
  • the TWAN device determines the PDN type according to the type of the trigger message.
  • the TWAN device determines, according to at least the APN and the PDN type, whether to send a setup session request message to the PDN gateway (P-GW).
  • P-GW PDN gateway
  • the TWAN device does not send a setup session request message to the PDN gateway. If the process ends, if the APN is not the default APN, and the PDN type has not been assigned to the user equipment, execute S509. .
  • the TWAN device sends a setup session request message to the PDN gateway, where the setup session request message carries the PDN type and the APN.
  • the create session request message carries the APN and PDN types.
  • the APN is the APN obtained by the TWAN device from the user equipment.
  • the PDN type is the PDN type information determined by the TWAN device according to the trigger message type.
  • the PDN Gateway and the Home Policy and Charging Rules Function perform an IP-CAN session establishment process.
  • the PDN gateway and the HSS/AAA perform a PDN gateway address update process. 5512.
  • the PDN gateway returns a create session response message to the TWAN device, where the setup session response message carries an IP address.
  • GTP General Packet Radio Service Tunneling Protocol
  • the user equipment completes the layer 3 (IP layer) attachment process.
  • the user equipment may initiate a trigger message to the TWAN device, and after receiving the trigger message sent by the user equipment, the TWAN device may be based on the APN obtained from the user equipment and the PDN determined according to the trigger message type.
  • the type the PDN gateway initiates a setup session request message carrying the APN and the PDN type, and implements an PDN connection for the user equipment to establish an additional PDN connection or a non-default APN to improve the network access range of the user equipment.
  • FIG. 6 is a flow chart of still another embodiment of a method for establishing a packet data network connection according to the present invention. As shown in FIG. 6, the method includes:
  • the S60U Trusted Wireless LAN Access Network (TWAN) device obtains the Access Point Name (APN) from the user equipment and obtains the subscription information of the user equipment from the Home Subscriber Server/Authentication Authorization Accounting (HSS/AAA).
  • APN Access Point Name
  • HSS/AAA Home Subscriber Server/Authentication Authorization Accounting
  • the TWAN device determines the PDN gateway according to at least the APN and the subscription information.
  • the TWAN device sends a setup session request message carrying the APN to the determined PDN Gateway (P-GW).
  • P-GW PDN Gateway
  • the TWAN device receives the established session response message carrying the IP address returned by the determined PDN gateway.
  • the TWAN device sends the IP address to the user equipment.
  • the TWAN device may determine, according to the APN obtained from the user equipment and the subscription data of the user equipment acquired from the HSS/AAA, an PDN gateway for establishing an additional PDN connection or a PDN connection of the non-default APN for the user equipment, and to the PDN.
  • the gateway initiates a session establishment request message.
  • the TWAN device may receive the user equipment or the ASN carrying the ASN sent by the user equipment or the HSS/AAA in the EAP authentication process performed by the user equipment and the HSS/AAA.
  • the TWAN device may receive the first message sent by the user equipment in the EAP authentication process of the user equipment and the HSS/AAA, and the first message carries the APN; or the TWAN device may be in the EAP authentication process.
  • TWAN devices may include Trusted WLAN Access Network (WLAN AN), Trusted WLAN Access peer/proxy (TWAP), and Trusted WLAN Access Gateway (Trusted WLAN) Access Gateway, TWAG).
  • WLAN AN includes a set of one or more WLAN access points.
  • the TWAP may acquire the APN from the message sent by the user equipment or the HSS/AAA in the process of the user equipment and the HSS/AAA performing the extended authentication protocol EAP authentication. After acquiring the APN, the TWAP may send a first WLAN attach request to the TWAG, and carry the APN in the first WLAN attach request.
  • the TWAP may also obtain the subscription information of the user equipment from the HSS or the AAA, and send a second WLAN attach request that carries the subscription information to the TWAG.
  • the first WLAN attach request and the second WLAN attach request may be the same WLAN attach request, or may be different WLAN attach requests.
  • the TDN type may be determined according to the subscription information, so that the PDN type may be carried in the setup session request message sent to the PDN gateway.
  • the TWAN device determines, according to at least the subscription information, that the user equipment only allows the address of the Internet Protocol version 4 IPV4 to be allocated, the TWAN device determines that the PDN type is IPV4;
  • the TWAN device determines, according to at least the subscription information, that the user equipment only allows the address of the Internet Protocol version 6 IPV6 to be allocated, the TWAN device determines that the PDN type is IPV6;
  • the TWAN device determines, according to the subscription information, that the user equipment is allowed to allocate the IPV4 address and the IPV6 address, the TWAN device determines that the PDN type is IPV4V6; In another implementation scenario, if the TWAN device determines that the user equipment is allowed to allocate an IP V4V6 address according to at least the subscription information, the TWAN device determines that the PDN type is IPV4V6.
  • the TWAN device determines the PDN gateway according to the APN obtained from the user equipment and the subscription information of the user equipment acquired from the HSS/AAA, and initiates a setup session request message carrying the APN to the determined PDN gateway, and implements An additional PDN connection or a non-default APN PDN connection is established for the user equipment to improve the network access range of the user equipment.
  • FIG. 7 is a flowchart of another embodiment of a method for establishing a PDN connection of a packet data network according to the present invention.
  • the TWAN device includes a trusted WLAN access network (WLAN AN), TWAP, and TWAG.
  • the WLAN AN includes a collection of one or more WLAN access points. The method includes:
  • the S70U user equipment detected an accessible wireless LAN.
  • the user equipment performs EAP authentication with the HSS/AAA.
  • the user equipment carries the APN in at least one message sent by the HSS or the AAA.
  • the TWAP receives the message carrying the APN sent by the user equipment or the HSS/AAA in the process of performing the EAP authentication by the user equipment and the HSS or the AAA.
  • the TWAP may save the APN for the PDN Gateway (P-GW) determination in the subsequent PDN establishment process.
  • P-GW PDN Gateway
  • the TWAP sends a WLAN attach request to the TWAG, where the WLAN attach request carries the subscription information of the APN of the user equipment and the user equipment.
  • the TWAG determines the PDN gateway according to at least the subscription data of the APN and the user equipment.
  • the TWAG determines the PDN type according to at least the subscription information.
  • the TWAN device determines that the PDN type is IPV4; or if the TWAN device determines that the user equipment only allows the Internet Protocol to be allocated at least according to the subscription information. For the address of IPV6, the TWAN device determines that the PDN type is IPV6; or, if the TWAN device determines at least according to the subscription information, the user equipment is allowed to allocate IPV4.
  • the TWAN device determines that the PDN type is IPV4V6; or, if the TWAN device determines at least the address of the IPV4V6 that the user equipment is allowed to allocate according to the subscription information, the TWAN device determines that the PDN type is IPV4V6.
  • the TWAG sends a setup session request message carrying the APN and the PDN type according to the determined PDN gateway.
  • the PDN gateway and the hPCRF perform an IP-CAN session establishment process.
  • the PDN gateway and the HSS/AAA perform the P-GW address update process.
  • the PDN gateway returns a create session response message to the TWAG, where the setup session response message carries an IP address.
  • the GTP tunnel establishment between the WLAN access network and the PDN gateway is completed, and the TWAG returns a WLAN attach accept message to the TWAP.
  • the WLAN access network returns an EAP success message to the user equipment to indicate that the EAP process is successful.
  • the user equipment performs an IP layer configuration according to at least a standard IETF procedure.
  • the method for establishing a PDN connection provided by this embodiment, after the user equipment detects the WLAN that can be accessed, the APN information is carried in the EAP authentication process performed by the HSS or the AAA, so that the TWAP can obtain the APN after the APN information is obtained.
  • the information and the subscription data of the user equipment are sent to the TWAG.
  • the TWAG determines the PDN gateway according to at least the APN information and the subscription data, and may also at least sign the contract.
  • FIG. 8 is a schematic structural diagram of an embodiment of a trusted wireless local area network access network device according to the present invention.
  • the trusted wireless local area network access network device includes: a receiving module 1 1 , an obtaining module 12 , and a sending module 13;
  • the receiving module 1 1 is configured to receive a trigger message sent by the user equipment
  • the obtaining module 12 is configured to obtain an access point name (APN) from the user equipment;
  • the sending module 13 is configured to send a setup session request message carrying an APN to a packet data network (PDN) gateway (P-GW);
  • PDN packet data network gateway
  • the receiving module 1 1 is further configured to receive a session establishment response message carrying an IP address returned by the PDN gateway.
  • the sending module 13 is further configured to send an IP address to the user equipment.
  • FIG. 9 is a schematic structural diagram of another embodiment of a trusted wireless local area network access network device according to the present invention.
  • the trusted wireless local area network access network device includes: a receiving module 1 1 , an obtaining module 12 , and a sending Module 13;
  • the obtaining module 12 can include at least one of the following modules:
  • the first obtaining module 121 is configured to obtain an APN from the trigger message
  • the second obtaining module 122 is configured to: when determining that the user equipment has established at least one PDN connection, send a request message to the user equipment, receive a response message sent by the user equipment and carry the APN, and obtain an APN from the response message;
  • the third obtaining module 123 is configured to receive a request message for carrying the APN sent by the user equipment, and obtain an APN from the request message.
  • the TWAN device can further include: determining module 14, for determining
  • the sending module 13 Whether the APN is a non-default APN, and triggers the sending module 13 to send a setup session request message to the PDN gateway when it is determined that the APN is a non-default APN.
  • the trusted wireless local area network access network device provided by the embodiment of the present invention corresponds to the packet data network connection establishing method provided by the embodiment of the present invention, and is an execution device of the packet data network connection establishing method, and the packet data network connection establishing method is implemented.
  • the process of the present invention reference may be made to the related description in the embodiment shown in FIG. 1 and FIG. 5, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of an embodiment of a user equipment according to the present invention.
  • the user equipment includes: a determining module 21, a sending module 22, and a receiving module 23.
  • the determining module 21 is configured to determine that a connection is to be established.
  • the sending module 22 is configured to send a trigger message to the trusted wireless local area network (TWAN) device according to the determined PDN type, and the trigger message triggers the TWAN device to send a setup session carrying the APN to the PDN gateway (P-GW)
  • PDN gateway PDN gateway
  • the user equipment provided by the embodiment of the present invention corresponds to the packet data network connection establishment method provided by the embodiment of the present invention, and is an execution device of the packet data network connection establishment method, and the process of performing the packet data network connection establishment method may refer to the present invention.
  • the related description in the embodiment shown in FIG. 2 is not described herein again.
  • FIG. 11 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • the user equipment includes: a determining module 31, a sending module 32, and a receiving module 33.
  • the determining module 31 is configured to determine Establishing a connected packet data network (PDN) type;
  • the sending module 32 configured to send a trigger message to the trusted wireless local area network access network (TWAN) device according to the determined PDN type;
  • PDN packet data network
  • TWAN trusted wireless local area network access network
  • the receiving module 33 is configured to receive a request message sent by the TWAN device.
  • the sending module 32 is further configured to send, to the TWAN device, a response message carrying an access point name (APN), where the response message triggers the TWAN device to send a setup session request message carrying the APN to the PDN gateway (P-GW), and Receiving a setup session response message carrying an IP address returned by the PDN gateway;
  • APN access point name
  • P-GW PDN gateway
  • the receiving module 33 is further configured to receive an IP address sent by the TWAN device.
  • the user equipment provided by the embodiment of the present invention corresponds to the packet data network connection establishment method provided by the embodiment of the present invention, and is an execution device of the packet data network connection establishment method, and the process of performing the packet data network connection establishment method may refer to the present invention.
  • the related description in the embodiment shown in FIG. 3 is not described herein again.
  • FIG. 12 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • the user equipment includes: a determining module 41, a sending module 42 and a receiving module 43.
  • the determining module 41 is configured to determine that a connection is to be established.
  • a packet data network (PDN) type a sending module 42, configured to send a trigger message to a trusted wireless local area network (TWAN) device according to the determined PDN type;
  • PDN packet data network
  • TWAN trusted wireless local area network
  • the sending module 42 is further configured to send, to the TWAN device, a request message carrying an access point name (APN), where the request message triggers the TWAN device to send a PSN gateway (P-GW) to send a setup session request message carrying the APN, and Receiving a setup session response message carrying an IP address returned by the PDN gateway;
  • APN access point name
  • P-GW PSN gateway
  • the receiving module 43 is configured to receive an IP address sent by the TWAN device.
  • the user equipment provided by the embodiment of the present invention corresponds to the packet data network connection establishment method provided by the embodiment of the present invention, and is an execution device of the packet data network connection establishment method, and the process of performing the packet data network connection establishment method may refer to the present invention.
  • the related description in the embodiment shown in FIG. 4 is not described herein again.
  • FIG. 13 is a schematic structural diagram of an embodiment of a trusted wireless local area network access network device according to the present invention.
  • the trusted wireless local area network access network device includes: an obtaining module 51, a determining module 52, and a sending module 53. And receiving module 54;
  • the obtaining module 51 is configured to obtain an access point name (APN) from the user equipment, and obtain subscription information of the user equipment from the home subscriber server/authentication authorization charging (HSS/AAA);
  • the determining module 52 is configured to determine a packet data network (PDN) gateway (PD-Gate) (P-GW) according to at least the APN and the subscription information;
  • PDN packet data network gateway
  • P-GW packet data network gateway
  • the sending module 53 is configured to send an established session request message carrying the APN to the determined PDN gateway.
  • the receiving module 54 is configured to receive a setup session response message carrying an IP address returned by the PDN gateway.
  • the sending module 53 is also used to send an IP address to the user equipment.
  • the obtaining module 51 may be specifically configured to: receive a message carrying the APN sent by the user equipment or the HSS/AAA in the EAP authentication process of the user equipment and the HSS/AAA performing the extended authentication protocol.
  • the PDN type can also be carried in the establishment session request message
  • the determining module 52 can also be configured to determine the PDN type based at least on the subscription information.
  • the determining module 52 may be specifically configured to: if the TWAN device determines that the user equipment only allows the address of the Internet Protocol version 4 IPV4 to be allocated according to the subscription information, determining that the PDN type is IPV4; or
  • the PDN type is IPV4V6.
  • the trusted wireless local area network access network device provided by the embodiment of the present invention corresponds to the packet data network connection establishing method provided by the embodiment of the present invention, and is an execution device of the packet data network connection establishing method, and the packet data network connection establishing method is implemented.
  • the process of the present invention refer to the related description in the embodiment shown in FIG. 6 and FIG. 7 of the present invention, and details are not described herein again.
  • the trusted WLAN access network device determines the PDN gateway according to the APN obtained from the user equipment and the subscription information of the user equipment acquired from the HSS/AAA, and initiates the establishment of the acquired APN to the determined PDN gateway.
  • the session request message is implemented to establish an additional PDN connection or a non-default APN PDN connection for the user equipment to improve the network access range of the user equipment.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units.
  • the purpose of the embodiment of the present embodiment can be achieved by determining some or all of the units at least according to actual needs.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented as a software functional unit and sold or used as a stand-alone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application or the part that contributes to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. , including a number of instructions to make a computer device (which may be a personal computer, server, or network device, etc.) or processor
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read only memory (ROM, Read-Only) Memory), P-Access Memory (RAM), disk or optical disk, etc., which can store program code.

Abstract

本发明实施例提供一种分组数据网PDN连接建立方法和设备。一种方法包括:可信无线局域网接入网TWAN设备接收用户设备发送的触发消息;TWAN设备从用户设备获取接入点名称APN;TWAN设备向PDN网关发送携带APN的建立会话请求消息;TWAN设备接收PDN网关返回的携带IP地址的建立会话响应消息;TWAN设备将 IP地址发送给用户设备。实现为用户设备建立额外的或非默认的PDN连接,以提高用户设备的网络访问范围。

Description

分组数据网连接建立方法和设备
技术领域 本发明涉及通信技术,尤其涉及一种分组数据网连接建立方法和 设备。 背景技术 用户设备 (User Equipment, UE) 可以通过可信无线局域网接 入网 (Trusted Wireless Local Area Networks Access Network, TWAN) 接入演进的分组系统 (Evolved Packet System, EPS) 中 的演进的分组核心网 (Evolved Packet Core, EPC) 。
现有技术中, 用户设备通过 TWAN接入 EPC时, 只能建立默认接 入点名称(Access Point Name, APN)的分组数据网 ( Packet Data Network, PDN) 连接, 而某些默认 APN只能接入特定网络, 从而 导致用户设备的网络访问受到限制。 发明内容 本发明实施例提供一种分组数据网连接建立方法和设备, 实现为 用户设备建立额外的或非默认 APN的 PDN连接,以提高用户设备的网 络访问范围。
一方面,本发明实施例提供一种分组数据网连接建立方法,包括: 可信无线局域网接入网 TWAN设备接收用户设备发送的触发消 息;
所述 TWAN设备从所述用户设备获取接入点名称 APN;
所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求 消息;
所述 TWAN设备接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息; 所述 TWAN设备将所述 IP地址发送给所述用户设备。
本发明实施例还提供又一种分组数据网连接建立方法, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送携带接入点名称 APN的触发消息, 所述触发消息触发 所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求消息, 所述 TWAN设备接收所述 PDN网关返回的携带 IP地址的建立会话响 应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
本发明实施例还提供又一种分组数据网连接建立方法, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网
TWAN设备发送触发消息;
所述用户设备接收所述 TWAN设备发送的请求消息;
所述用户设备向所述 TWAN设备发送携带所述 APN的响应消息, 所述响应消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的 建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
本发明实施例还提供另一种分组数据网连接建立方法, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息;
所述用户设备向所述 TWAN设备发送携带所述 APN的请求消息, 所述请求消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的 建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
本发明实施例还提供一种可信无线局域网接入网设备, 包括: 接收模块, 用于接收用户设备发送的触发消息; 获取模块, 用于从所述用户设备获取接入点名称 APN; 发送模块,用于向分组数据网 PDN网关发送携带所述 APN的建立 会话请求消息;
所述接收模块,还用于接收所述 PDN网关返回的携带 IP地址的建 立会话响应消息;
所述发送模块, 还用于将所述 IP地址发送给所述用户设备。 本发明实施例还提供一种用户设备, 包括:
确定模块, 用于确定待建立连接的分组数据网 PDN类型; 发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息, 所述触发消息触发所述 TWAN设备向 PDN 网关发送携带所述 APN的建立会话请求消息,所述 TWAN设备接收所 述 PDN网关返回的携带 IP地址的建立会话响应消息;
接收模块, 用于接收所述 TWAN设备发送的所述 IP地址。
本发明实施例还提供又一种用户设备, 包括:
确定模块, 用于确定待建立连接的分组数据网 PDN类型; 发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息;
接收模块, 用于接收所述 TWAN设备发送的请求消息; 所述发送模块,还用于向所述 TWAN设备发送携带所述 APN的响 应消息,所述响应消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的 建立会话响应消息;
所述接收模块, 还用于接收所述 TWAN设备发送的所述 IP地址。 本发明实施例还提供另一种用户设备, 包括:
确定模块, 用于确定待建立连接的 PDN类型;
发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息;
所述发送模块,还用于向所述 TWAN设备发送携带所述 APN的请 求消息,所述请求消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的 建立会话响应消息;
接收模块, 用于接收所述 TWAN设备发送的所述 IP地址。
本发明实施例提供的分组数据网连接建立方法和设备, TWAN 设备接收用户设备发送的触发消息后,向 PDN网关发起携带所获取的 APN的建立会话请求消息,实现为用户设备建立额外的 PDN连接或非 默认 APN的 PDN连接, 以提高用户设备的网络访问范围。
另一方面, 本发明实施例还提供一种分组数据网连接建立方法, 包括:
可信无线局域网接入网 TWAN设备从用户设备获取接入点名称 APN, 从归属用户服务器 /认证授权计费 HSS/AAA获取所述用户设备 的签约信息;
所述 TWAN设备至少根据所述 APN和所述签约信息, 确定 PDN 网关;
所述 TWAN设备向所确定的 PDN网关发送携带所述 APN的建立 会话请求消息;
所述 TWAN设备接收所述所确定的 PDN网关返回的携带 IP地址 的建立会话响应消息;
所述 TWAN设备将所述 IP地址发送给所述用户设备。
本发明实施例还提供一种可信无线局域网接入网设备, 包括: 获取模块, 用于从用户设备获取接入点名称 APN, 从归属用户服 务器 /认证授权计费 HSS/AAA获取所述用户设备的签约信息;
确定模块, 用于至少根据所述 APN和所述签约信息, 确定分组数 据网 PDN网关;
发送模块,用于向所确定的 PDN网关发送携带所述 APN的建立会 话请求消息;
接收模块,用于接收所述所确定的 PDN网关返回的携带 IP地址的 建立会话响应消息;
所述发送模块, 还用于将所述 IP地址发送给所述用户设备。 本发明实施例提供的分组数据网 PDN连接建立方法和设备,
TWAN设备根据从用户设备获取的 APN和从 HSS/AAA获取的用户设 备的签约信息确定 PDN网关, 向确定的 PDN网关发起携带所获取的 APN的建立会话请求消息,实现为用户设备建立额外的 PDN连接或非 默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面 将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而 易见地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通 技术人员来讲, 在不付出创造性劳动性的前提下, 还可以至少根据这 些附图获得其他的附图。
图 1为本发明提供的分组数据网连接建立方法一个实施例的流程 图;
图 2为本发明提供的分组数据网连接建立方法又一个实施例的流 程图;
图 3为本发明提供的分组数据网连接建立方法又一个实施例的流 程图;
图 4为本发明提供的分组数据网连接建立方法另一个实施例的流 程图
图 5为本发明提供的分组数据网连接建立方法又一个实施例的流 程图;
图 6为本发明提供的分组数据网连接建立方法另一个实施例的流 程图;
图 7为本发明提供的分组数据网连接建立方法另一个实施例的流 程图
图 8为本发明提供的可信无线局域网接入网设备一个实施例的结 构示意图;
图 9为本发明提供的可信无线局域网接入网设备另一个实施例的 结构示意图;
图 10为本发明提供的用户设备一个实施例的结构示意图; 图 1 1为本发明提供的用户设备又一个实施例的结构示意图; 图 12为本发明提供的用户设备又一个实施例的结构示意图; 图 13为本发明提供的可信无线局域网接入网网关一个实施例的 结构示意图。 具体实施方式 为使本发明实施例的目的、技术方案和优点更加清楚, 下面将结 合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有 做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护 的范围。
本申请中涉及的用户设备可以是能够提供语音和 /或数据连通性 的设备, 具有无线连接功能的手持式设备、或连接到无线调制解调器 的其他处理设备。 无线用户设备可以经无线接入网 (例如, RAN , Radio Access Network) 与一个或多个核心网进行通信, 例如, 移动 电话 (或称为"蜂窝"电话), 便携式、袖珍式、 手持式、 计算机内置的 或者车载的移动装置, 个人通信业务 ( PCS , Personal Communication Service) 电话、 无绳电话、 会话发起协议 (SIP) 话 机、 无线本地环路 (WLL, Wireless Local Loop) 站、 个人数字助理 (PDA, Personal Digital Assistant) 等设备。 无线用户设备也可以 称为系统、订户单元 (Subscriber Unit)、订户站 (Subscriber Station), 移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、 接入点 (Access Point)、 远程终端 (Remote Terminal)、 接入终端 (Access Terminal) 等。
图 1为本发明提供的分组数据网连接建立方法一个实施例的流程 图, 如图 1所示, 该方法包括:
S10U 可信无线局域网接入网 (TWAN) 设备接收用户设备发 送的触发消息。 5102、 TWAN设备从用户设备获取接入点名称 (APN) 。
5103、 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送 携带 APN的建立会话请求消息。
5104、 TWAN设备接收 PDN网关返回的携带 IP地址的建立会话 响应消息。
5105、 TWAN设备将该 IP地址发送给用户设备。
在用户设备需要建立 PDN连接时, TWAN设备通常从网络侧的归 属用户服务器 (Home Subscriber Server, HSS) 获取 APN, 从而为 用户设备建立默认 APN的 PDN连接。
本实施例中, 用户设备可以根据想要建立的 PDN类型, 向 TWAN 设备发起相应的触发消息。举例来说, 如果用户设备想要建立互联网 协议 (Internet Protocol, IP) 第四版 IPV4类型的 PDN连接, 则用户 设备可以向 TWAN设备发送动态主机设置协议 (Dynamic Host Configuration Protocol, DHCP) 第四版 DHCPV4请求消息或者路由 请求消息 (Router Solicitation, RS) 或者邻居请求消息 (Neighbor Solicitation, NS) ;如果用户设备想要建立 IPV6类型的 PDN连接, 则用户设备可以向 TWAN设备发送 DHCPV6请求消息或 RS或邻居请 求〉肖息。
TWAN设备可以从用户设备处获取 APN ,在接收到用户设备发送 的触发消息后, 可以根据从用户设备获取的 APN, 向 PDN网关发送建 立会话请求消息, 在该建立会话请求消息中携带从用户设备获取的 APN,当 TWAN设备接收到 PDN网关返回的携带 IP地址的建立会话响 应消息后, TWAN设备可以将该 IP地址发送给用户设备, 从而使用户 设备与 PDN网关之间建立起额外的或非默认 APN的 PDN连接。
作为一种可行的实施方式, 用户设备可以在向 TWAN设备发送的 触发消息中携带 APN, 即 TWAN设备可以从出发消息中获取 APN。
作为另一种可行的实施方式, TWAN设备当确定用户设备已建立 至少一个 PDN连接时, 可以向用户设备发送请求消息, 以请求获取 APN;进一歩的, TWAN设备可以接收用户设备发送的携带 APN的响 应消息, TWAN设备从该响应消息中获取 APN。 其中, 在 TWAN设备 接收到用户设备发送的触发消息之后, 确定该用户设备是否已通过
WLAN建立了 PDN连接可以为 : 如果在 HSS/认证授权计费 (Authentication、 Authorization、 Accounting, AAA) 中的签约数 据中已有该用户设备的 PDN连接信息,则 TWAN设备可以确定该用户 设备已通过 WLAN建立 PDN连接;或者, 由于用户设备通过 WLAN建 立了 PDN连接后, 在 WLAN中可以保存有用户设备的信息, 因此, TWAN设备也可以根据 WLAN中保存的用户设备信息来确定用户设 备是否已通过 WLAN建立 PDN连接。如果该用户设备已经建立了 PDN 连接,那么 TWAN当前接收到的触发消息则请求建立的是额外的 PDN 连接。
作为另一种可行的实施方式, TWAN设备还可以接收用户设备发 送的携带 APN的请求消息, TWAN设备从该请求消息中获取 APN。举 例来说, 用户设备在向 TWAN设备发送的触发消息后, 还可以向 TWAN设备发送携带 APN的请求消息。
可以理解的是, 以上仅为 TWAN设备从用户设备处获取 APN的几 种可行的实施方式, 但并不以此作为对本发明的限制。
需要说明的是, TWAN设备向 PDN网关发送的建立会话请求消息 中还可以携带 PDN类型等其他信息,由于用户设备向 TWAN设备发送 的触发消息由用户设备确定建立的 PDN类型决定, 因此, TWAN设备 接收到用户设备发送的触发消息后, 可以根据触发消息的类型, 确定 用户设备请求建立的 PDN类型。举例来说, 若 TWAN设备接收到的触 发消息为 DHCPV4请求消息, 贝 ijPDN类型为 IPV4;如果 TWAN设备 接收到的触发消息为 DHCPV6请求消息, 贝 ijPDN类型为 IPV6;如果 TWAN设备接收到的触发消息为 DHCPV4V6请求消息, 贝 ijPDN类型 为 IP爾 6。
可选的, TWAN设备可以在确定 APN为非默认 APN时, 向 PDN 网关发送建立会话请求消息。
TWAN设备本地保存的用户设备已建立的 PDN连接的相关信息 中包含默认的 APN信息, 因此, TWAN设备可以根据本地保存的 PDN 连接的相关信息确定从用户设备获取的 APN是否为默认的 APN。在一 种实施场景下,如果 TWAN设备确定从用户设备获取的 APN为默认的 APN, 且用户设备请求建立的 PDN类型已分配给用户设备, 则 TWAN 设备可以不向 PDN网关发送建立会话请求消息;在另一种实施场景 下, 如果该 TWAN设备确定从用户设备获取的 APN不是默认的 APN, 且用户设备请求建立的 PDN类型信息尚未分配给用户设备,则 TWAN 设备可以向 PDN网关发送建立会话请求消息。
本实施例提供的分组数据网 (PDN) 连接建立方法, TWAN设 备接收用户设备发送的触发消息后, 根据从用户设备获取的 APN向 PDN网关发起携带所获取的 APN的建立会话请求消息,实现为用户设 备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户设备 的网络访问范围。 图 2为本发明提供的分组数据网连接建立方法又一个实施例的流 程图, 如图 2所示, 该方法包括:
S20U 用户设备确定待建立连接的分组数据网 (PDN) 类型。
5202、 用户设备根据所确定的 PDN类型向可信无线局域网接入 网 (TWAN) 设备发送携带接入点名称 (APN) 的触发消息, 触发消 息触发 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息, TWAN设备接收 PDN网关返回的携带 IP 地址的建立会话响应消息。
5203、 用户设备接收 TWAN设备发送的 IP地址。
用户设备可以根据想要建立的 PDN类型,向 TWAN设备发起相应 的触发消息。 举例来说, 如果用户设备想要建立 IPV4类型的 PDN连 接, 则用户设备可以向 TWAN设备发送 DHCPV4请求消息或 RS或邻 居请求消息; 如果用户设备想要建立 IPV6类型的 PDN连接, 则用户 设备可以向 TWAN设备发送 DHCPV6请求消息或 RS或邻居请求消 用户设备可以在触发消息中直接携带 APN,从而是 TWAN设备接 收到携带 APN的触发消息后, 可以向 PDN网关发起携带该 APN的建 立会话请求消息。 本实施例提供的 PDN连接建立方法,用户设备向 TWAN设备发送 的携带 APN的触发消息后, TWAN设备可以向 PDN网关发起携带所获 取的 APN的建立会话请求消息,实现为用户设备建立额外的 PDN连接 或非默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 3为本发明提供的分组数据网连接建立方法又一个实施例的流 程图, 如图 3所示, 该方法包括:
S30U 用户设备确定待建立连接的分组数据网 (PDN) 类型;
5302、 用户设备根据所确定的 PDN类型向可信无线局域网接入 网 (TWAN) 设备发送触发消息;
5303、 用户设备接收 TWAN设备发送的请求消息;
5304、 用户设备向 TWAN设备发送携带 APN的响应消息, 该响 应消息触发 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送携 带 APN的建立会话请求消息,并接收 PDN网关返回的携带 IP地址的建 立会话响应消息;
5305、 用户设备接收 TWAN设备发送的 IP地址。
本实施例与图 2所示实施例的区别在于, 用户设备根据需要建立 连接的 PDN类型向 TWAN设备发送触发消息后,如果用户设备接收到 TWAN设备发送的用于请求获取 APN的请求消息, 则用户设备可以向 TWAN设备返回携带 APN的响应消息, 从而使 TWAN设备接收到携带 APN的触发消息后, 可以向 PDN网关发起携带该 APN的建立会话请 求〉肖息。
本实施例提供的 PDN连接建立方法,用户设备向 TWAN设备发送 的触发消息后, 若接收到 TWAN设备发送的请求消息, 可以向该 TWAN设备返回携带 APN的响应消息,从而使 TWAN可以向 PDN网关 发起携带所获取的 APN的建立会话请求消息,实现为用户设备建立额 外的 PDN连接或非默认 APN的 PDN连接, 以提高用户设备的网络访 问范围。 图 4为本发明提供的分组数据网连接建立方法另一个实施例的流 程图, 如图 4所示, 该方法包括:
S40U 用户设备确定待建立连接的分组数据网 (PDN) 类型;
5402、 用户设备根据所确定的 PDN类型向可信无线局域网接入 网 (TWAN) 设备发送触发消息;
5403、 用户设备向 TWAN设备发送携带 APN的请求消息, 该请 求消息触发 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送携 带 APN的建立会话请求消息,并接收 PDN网关返回的携带 IP地址的建 立会话响应消息;
5404、 用户设备接收 TWAN设备发送的 IP地址。
本实施例与图 2所示实施例的区别在于, 用户设备根据需要建立 连接的 PDN类型向 TWAN设备发送触发消息后, 还可以向 TWAN设 备发送携带 APN的请求消息,从而使 TWAN设备接收到携带 APN的触 发消息后, 可以向 PDN网关发起携带该 APN的建立会话请求消息。
本实施例提供的 PDN连接建立方法,用户设备向 TWAN设备发送 的触发消息后, 可以进一歩向该 TWAN设备返回携带 APN的请求消 息,从而使 TWAN可以向 PDN网关发起携带所获取的 APN的建立会话 请求消息, 实现为用户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 5为本发明提供的分组数据网连接建立方法又一个实施例的流 程图, 如图 5所示, 该方法包括:
S50U 用户设备确定待建立连接的分组数据网 (PDN) 类型。
5502、 用户设备向可信无线局域网接入网 (TWAN) 设备发送 角虫发消息。
5503、 用户设备与 HSS/AAA执行 EAP鉴权过程。
需要说明的是: S503为可选歩骤。
5504、 TWAN设备确定用户设备是否已建立 PDN连接;若用户 设备已建立 PDN连接且触发消息中携带 APN那么执行 S507;若用 户设备已建立 PDN连接且如果触发消息中不携带 APN则执行 S505; 若用户设备尚未建立 PDN连接, 则执行 S509。 5505、 TWAN 设备向用户设备发送请求消息, 请求消息用于请 求获取 APN。
其中,该请求消息可以为通用广播业务接入网查询协议(Generic Advertisement Service Access Network Query Protocol , GAS-ANQP Query)消息,其中携带 3G手机网络信息(3GPP Cellular Network information) , 该请求消息也可以是 GAS-ANQP的其他消 息, 不再一一列举。
5506、 用户设备向 TWAN 设备发送请求消息的响应消息, 该 响应消息中携带 APN。
其中, 请求消息的响应消息可以为 GAS-ANQP Query response, 该响应消息中携带 APN。 对应于其他的 GAS-ANQP响 应消息也不同, 此处不再一一列出。
需要说明的是, S505和 S506还可以为:用户设备向 TWAN设 备发送携带 APN的请求消息。
S504-S506为 TWAN设备从用户设备获取 APN的过程, 需要 说明的是, 该过程可以在 EAP之前执行, 也可以在 EAP之后执行。
5507、 TWAN设备根据触发消息的类型, 确定 PDN类型。
5508、 TWAN设备至少根据 APN和 PDN类型,确定是否向 PDN 网关 (PDN Gateway, P-GW) 发送建立会话请求消息。
若 APN 为默认的 APN, 且 PDN 类型已分配给用户设备, 则 TWAN设备不向 PDN网关发送建立会话请求消息,流程结束若 APN 不是默认的 APN, 且 PDN类型尚未分配给用户设备, 则执行 S509。
5509、 TWAN设备向 PDN网关发送建立会话请求消息, 该建立 会话请求消息中携带 PDN类型和 APN。
其中, 建立会话请求(create session request)消息中携带 APN 及 PDN类型。 APN为 TWAN设备从用户设备获取的 APN, PDN类 型为 TWAN设备根据触发消息类型确定的 PDN类型信息。
5510、 PDN网关与归属策略与计费规则功能(home Policy and Charging Rules Function, hPCRF) 执行 IP-CAN会话建立过程。
S511、 PDN网关与 HSS/AAA执行 PDN网关地址更新过程。 5512、 PDN 网关向 TWAN 设备返回建立会话响应 (create session response) 消息, 其中, 该建立会话响应消息携带 IP地址。
5513、 PDN网关与 TWAN设备之间的通用分组无线服务技术 隨道协议(General Packet Radio Service Tunnelling Protocol, GTP) 隧道建立完成。
5514、 用户设备完成层 3 (IP层) 附着过程。
本实施例提供的分组数据网 PDN连接建立方法, 用户设备可以 向 TWAN设备发起触发消息, TWAN设备接收用户设备发送的触发 消息后, 可以根据从用户设备获取的 APN以及根据触发消息类型确 定的 PDN类型, 向 PDN网关发起携带 APN和 PDN类型的建立会 话请求消息,实现为用户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 6为本发明提供的分组数据网连接建立方法又一个实施例的流 程图, 如图 6所示, 该方法包括:
S60U 可信无线局域网接入网 (TWAN) 设备从用户设备获取 接入点名称 (APN) , 从归属用户服务器 /认证授权计费 (HSS/AAA) 获取用户设备的签约信息。
5602、 TWAN设备至少根据 APN和签约信息, 确定 PDN网关。
5603、 TWAN设备向所确定的 PDN网关(PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息。
5604、 TWAN设备接收所确定的 PDN网关返回的携带 IP地址的 建立会话响应消息。
5605、 TWAN设备将 IP地址发送给用户设备。
本实施例中, TWAN设备可以根据从用户设备获取的 APN以及从 HSS/AAA获取的用户设备的签约数据确定为用户设备建立额外 PDN 连接或者非默认 APN的 PDN连接的 PDN网关, 并向该 PDN网关发起 建立会话请求消息。
可选的, TWAN设备可以在用户设备与 HSS/AAA执行扩展认证 协议 EAP鉴权过程中接收用户设备或 HSS/AAA发送的携带 APN的消 息。 举例来说, TWAN设备可以在用户设备与 HSS/AAA在执行扩展 认证协议 EAP鉴权过程中接收用户设备发送的第一消息,第一消息中 携带 APN;或者, TWAN设备可以在 EAP鉴权过程中接收 HSS/AAA 发送的第二消息, 第二消息中携带 APN, 其中, 第二消息中携带 APN 由 HSS/AAA从用户设备获取。
TWAN设备可以包括可信 WLAN接入网 (WLAN AN) 、 可信无 线局域网接入网接入对端 /代理 (Trusted WLAN Access peer/proxy, TWAP ) 和可信无线局域网接入网网关 (Trusted WLAN Access Gateway, TWAG) 。 其中, WLAN AN包括一个或多个无线局域网 接入点的集合。
作为一种可行的实施方式, TWAP可以在用户设备与 HSS/AAA 执行扩展认证协议 EAP鉴权过程中从用户设备或 HSS/AAA发送的消 息中获取 APN。 TWAP获取 APN后, 可以向 TWAG发送第一WLAN附 着请求, 并在该第一 WLAN附着请求中携带 APN。
可选的, TWAP还可以从 HSS或 AAA中获取用户设备的签约信 息, 并向 TWAG发送携带签约信息的第二 WLAN附着请求。
其中, 上述第一 WLAN附着请求与第二 WLAN附着请求可以为同 —WLAN附着请求, 也可以为不同的 WLAN附着请求。
可选的, TWAN设备向所确定的 PDN网关发送建立会话请求消息 之前, 还可以至少根据签约信息, 确定为 PDN类型, 从而可以在向 PDN网关发送的建立会话请求消息中携带 PDN类型。
在一种实施场景下, 若 TWAN设备至少根据签约信息确定用户设 备只允许分配互联网协议第四版 IPV4的地址, 则 TWAN设备确定 PDN类型为 IPV4;
在另一种实施场景下, 若 TWAN设备至少根据签约信息确定用户 设备只允许分配互联网协议第六版 IPV6的地址, 则 TWAN设备确定 PDN类型为 IPV6;
在又一种实施场景下, 若 TWAN设备至少根据签约信息确定用户 设备允许分配 IPV4的地址和 IPV6的地址, 则 TWAN设备确定 PDN类 型为 IPV4V6; 在又一种实施场景下, 若 TWAN设备至少根据签约信息确定用户 设备允许分配 IP V4V6的地址, 则 TWAN设备确定 PDN类型为 IPV4V6。
本实施例提供的 PDN连接建立方法, TWAN设备根据从用户设备 获取的 APN和从 HSS/AAA获取的用户设备的签约信息确定 PDN网 关, 向确定的 PDN网关发起携带 APN的建立会话请求消息, 实现为用 户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户 设备的网络访问范围。 图 7为本发明提供的分组数据网 PDN连接建立方法另一个实施 例的流程图, 如图 7所示, 其中, TWAN设备包括的可信 WLAN接 入网 (WLAN AN)、 TWAP和 TWAG。进一歩的, WLAN AN包括一 个或多个无线局域网接入点的集合。 该方法包括:
S70U 用户设备检测到可接入的无线局域网。
5702、 用户设备与 HSS/AAA进行 EAP鉴权, EAP鉴权过程中 用户设备向 HSS或 AAA发送的至少一个消息中携带 APN。
5703、 TWAP在用户设备与 HSS或 AAA执行 EAP鉴权的过程 中接收用户设备或 HSS/AAA发送的携带 APN的消息。
可选的, TWAP可以保存该 APN用于后续 PDN建立过程中的 PDN网关 (PDN Gateway, P-GW) 确定。
5704、 TWAP向 TWAG发送 WLAN附着请求, WLAN附着请 求中携带用户设备的 APN和用户设备的签约信息。
5705、 TWAG至少根据 APN和用户设备的签约数据,确定 PDN 网关。
5706、 TWAG至少根据签约信息确定 PDN类型。
若 TWAN设备至少根据签约信息确定用户设备只允许分配互联 网协议第四版 IPV4的地址, 则 TWAN设备确定 PDN类型为 IPV4; 或者, 若 TWAN设备至少根据签约信息确定用户设备只允许分配互 联网协议第六版 IPV6的地址,则 TWAN设备确定 PDN类型为 IPV6; 或者, 若 TWAN设备至少根据签约信息确定用户设备允许分配 IPV4 的地址和 IPV6的地址, 则 TWAN设备确定 PDN类型为 IPV4V6; 或者, 若 TWAN 设备至少根据签约信息确定用户设备允许分配 IPV4V6的地址, 则 TWAN设备确定 PDN类型为 IPV4V6。
5707、 TWAG 至少根据所确定的 PDN 网关发送携带 APN 和 PDN类型的建立会话请求消息
5708、 PDN网关与 hPCRF执行 IP-CAN会话建立过程。
5709、 PDN网关与 HSS/AAA执行 P-GW地址更新过程。
5710、 PDN网关向 TWAG返回建立会话响应 (create session response) 消息, 其中, 该建立会话响应消息携带 IP地址。
S711、 PDN网关与 TWAG之间的 GTP隧道建立完成。
5712、 WLAN 接入网与 PDN 网关间的 GTP 隧道建立完成, TWAG向 TWAP返回 WLAN附着接受消息。
5713、 WLAN 接入网向用户设备返回 EAP 成功消息, 以指示 EAP过程成功。
5714、 用户设备执行至少根据标准 IETF程序的 IP层配置。 本实施例提供的 PDN连接建立方法, 用户设备检测到可接入的 WLAN后, 在与 HSS或 AAA执行的 EAP鉴权过程中携带 APN信息, 从 而使 TWAP获取该 APN信息后,能够将该 APN信息和用户设备的签约 数据发送给 TWAG, TWAG接收 TWAP发送的携带用户设备的 APN信 息和用户设备的签约信息的 WLAN附着请求后, 至少根据 APN信息和 签约数据确定 PDN网关, 还可以至少根据签约信息确定 PDN类型, 从而在向 PDN网关发起建立会话请求消息中携带 APN和 PDN类型, 实现为用户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以 提高用户设备的网络访问范围。 图 8为本发明提供的可信无线局域网接入网设备一个实施例的结 构示意图, 如图 8所示, 该可信无线局域网接入网设备包括:接收模 块 1 1、 获取模块 12和发送模块 13;
接收模块 1 1, 用于接收用户设备发送的触发消息;
获取模块 12, 用于从用户设备获取接入点名称 (APN) ; 发送模块 13, 用于向分组数据网 (PDN) 网关 (PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息;
接收模块 1 1,还用于接收 PDN网关返回的携带 IP地址的建立会话 响应消息;
发送模块 13, 还用于将 IP地址发送给用户设备。
图 9为本发明提供的可信无线局域网接入网设备另一个实施例的 结构示意图, 如图 9所示, 该可信无线局域网接入网设备包括:接收 模块 1 1、 获取模块 12和发送模块 13;
可选的, 获取模块 12可以至少包括以下一种模块:
第一获取模块 121, 用于从触发消息中获取 APN;
第二获取模块 122, 用于当确定用户设备已建立至少一个 PDN连 接时向用户设备发送请求消息,接收用户设备发送的携带 APN的响应 消息, 从响应消息中获取 APN;
第三获取模块 123, 用于接收用户设备发送的携带 APN的请求消 息, 从请求消息中获取 APN。
可选的, TWAN设备还可以进一歩包括:确定模块 14, 用于确定
APN是否为非默认 APN, 并在确定 APN为非默认 APN时触发发送模 块 13向 PDN网关发送建立会话请求消息。
本发明实施例提供的可信无线局域网接入网设备, 与本发明实施 例提供的分组数据网连接建立方法相对应,为分组数据网连接建立方 法的执行设备,其执行分组数据网连接建立方法的过程可参见本发明 图 1和图 5所示实施例中的相关描述, 在此不再赘述。
本实施例提供的可信无线局域网接入网设备,接收用户设备发送 的触发消息后,根据从用户设备获取的 APN向 PDN网关发起携带所获 取的 APN的建立会话请求消息,实现为用户设备建立额外的 PDN连接 或非默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 10为本发明提供的用户设备一个实施例的结构示意图, 如图 10所示, 该用户设备包括:确定模块 21、 发送模块 22和接收模块 23; 确定模块 21, 用于确定待建立连接的分组数据网 (PDN) 类型; 发送模块 22, 用于根据所确定的 PDN类型向可信无线局域网接 入网 (TWAN) 设备发送触发消息, 触发消息触发 TWAN设备向 PDN 网关 (PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息, TWAN设备接收 PDN网关返回的携带 IP地址的建立会话响应消息; 接收模块 23, 用于接收 TWAN设备发送的 IP地址。
本发明实施例提供的用户设备, 与本发明实施例提供的分组数据 网连接建立方法相对应, 为分组数据网连接建立方法的执行设备, 其 执行分组数据网连接建立方法的过程可参见本发明图 2所示实施例中 的相关描述, 在此不再赘述。
本实施例提供的用户设备, 向 TWAN设备发送的携带 APN的触发 消息后, TWAN设备可以向 PDN网关发起携带所获取的 APN的建立会 话请求消息, 实现为用户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 1 1为本发明提供的用户设备又一个实施例的结构示意图,如图 1 1所示, 该用户设备包括:确定模块 31、 发送模块 32和接收模块 33; 确定模块 31, 用于确定待建立连接的分组数据网 (PDN) 类型; 发送模块 32, 用于根据所确定的 PDN类型向可信无线局域网接 入网 (TWAN) 设备发送触发消息;
接收模块 33, 用于接收 TWAN设备发送的请求消息;
发送模块 32, 还用于向 TWAN设备发送携带接入点名称 (APN) 的响应消息, 该响应消息触发 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息, 并接收 PDN 网关返回的携带 IP地址的建立会话响应消息;
接收模块 33, 还用于接收 TWAN设备发送的 IP地址。
本发明实施例提供的用户设备, 与本发明实施例提供的分组数据 网连接建立方法相对应, 为分组数据网连接建立方法的执行设备, 其 执行分组数据网连接建立方法的过程可参见本发明图 3所示实施例中 的相关描述, 在此不再赘述。
本实施例提供的用户设备, 向 TWAN设备发送的触发消息后, 若 接收到 TWAN设备发送的请求消息, 可以向该 TWAN设备返回携带 APN的响应消息, 从而使 TWAN可以向 PDN网关发起携带所获取的 APN的建立会话请求消息,实现为用户设备建立额外的 PDN连接或非 默认 APN的 PDN连接, 以提高用户设备的网络访问范围。 图 12为本发明提供的用户设备又一个实施例的结构示意图,如图 12所示, 该用户设备包括:确定模块 41、 发送模块 42和接收模块 43; 确定模块 41, 用于确定待建立连接的分组数据网 (PDN) 类型; 发送模块 42, 用于根据所确定的 PDN类型向可信无线局域网接 入网 (TWAN) 设备发送触发消息;
发送模块 42, 还用于向 TWAN设备发送携带接入点名称 (APN) 的请求消息, 该请求消息触发 TWAN设备向 PDN网关 (PDN Gateway, P-GW) 发送携带 APN的建立会话请求消息, 并接收 PDN 网关返回的携带 IP地址的建立会话响应消息;
接收模块 43, 用于接收 TWAN设备发送的 IP地址。
本发明实施例提供的用户设备, 与本发明实施例提供的分组数据 网连接建立方法相对应, 为分组数据网连接建立方法的执行设备, 其 执行分组数据网连接建立方法的过程可参见本发明图 4所示实施例中 的相关描述, 在此不再赘述。
本实施例提供的用户设备, 向 TWAN设备发送的触发消息后, 可 以进一歩向该 TWAN设备返回携带 APN的请求消息, 从而使 TWAN可 以向 PDN网关发起携带所获取的 APN的建立会话请求消息,实现为用 户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高用户 设备的网络访问范围。 图 13为本发明提供的可信无线局域网接入网设备一个实施例的 结构示意图, 如图 13所示, 该可信无线局域网接入网设备包括:获取 模块 51、 确定模块 52、 发送模块 53和接收模块 54;
获取模块 51, 用于从用户设备获取接入点名称 (APN) , 从归属 用户服务器 /认证授权计费 (HSS/AAA) 获取用户设备的签约信息; 确定模块 52, 用于至少根据 APN和签约信息, 确定分组数据网 (PDN) 网关 (PDN Gateway, P-GW) ;
发送模块 53, 用于向所确定的 PDN网关发送携带 APN的建立会 话请求消息。
接收模块 54,用于接收 PDN网关返回的携带 IP地址的建立会话响 应消息;
发送模块 53, 还用于将 IP地址发送给用户设备。
可选的, 获取模块 51可以具体用于:在用户设备与 HSS/AAA执 行扩展认证协议 EAP鉴权过程中接收用户设备或 HSS/AAA发送的携 带 APN的消息。
相应的, 建立会话请求消息中还可以携带 PDN类型;
确定模块 52, 还可以用于至少根据签约信息, 确定 PDN类型。 可选的, 确定模块 52可以具体用于:若 TWAN设备至少根据签约 信息确定用户设备只允许分配互联网协议第四版 IPV4的地址,则确定 PDN类型为 IPV4;或者,
若至少根据签约信息确定用户设备只允许分配互联网协议第六 版 IPV6的地址, 则确定 PDN类型为 IPV6;或者,
若至少根据签约信息确定用户设备允许分配 IPV4的地址和 IPV6 的地址, 则确定 PDN类型为 IPV4V6;或者,
若至少根据签约信息确定用户设备允许分配 IPV4V6的地址, 则 确定 PDN类型为 IPV4V6。
本发明实施例提供的可信无线局域网接入网设备, 与本发明实施 例提供的分组数据网连接建立方法相对应,为分组数据网连接建立方 法的执行设备,其执行分组数据网连接建立方法的过程可参见本发明 图 6和图 7所示实施例中的相关描述, 在此不再赘述。
本实施例提供的可信无线局域网接入网设备,根据从用户设备获 取的 APN和从 HSS/AAA获取的用户设备的签约信息确定 PDN网关, 向确定的 PDN网关发起携带所获取的 APN的建立会话请求消息,实现 为用户设备建立额外的 PDN连接或非默认 APN的 PDN连接, 以提高 用户设备的网络访问范围。 所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 仅以上述各功能模块的划分进行举例说明, 实际应用中, 可以至少根 据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结 构划分成不同的功能模块, 以完成以上描述的全部或者部分功能。上 述描述的系统, 装置和单元的具体工作过程, 可以参考前述方法实施 例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方法, 可以通过其它的方式实现。例如, 以上所描述的装置实 施例仅仅是示意性的, 例如, 模块或单元的划分, 仅仅为一种逻辑功 能划分, 实际实现时可以有另外的划分方式, 例如多个单元或组件可 以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。 另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以 是通过一些接口, 装置或单元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一 个地方, 或者也可以分布到多个网络单元上。可以至少根据实际的需 要确定其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理 单元中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单 元集成在一个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品 销售或使用时, 可以存储在一个计算机可读取存储介质中。基于这样 的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分 或者该技术方案的全部或部分可以以软件产品的形式体现出来, 该计 算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计 算机设备 (可以是个人计算机, 服务器, 或者网络设备等) 或处理器
(processor) 执行本申请各个实施例方法的全部或部分歩骤。 而前 述的存储介质包括: U盘、移动硬盘、只读存储器(ROM, Read-Only Memory)、 P舰存取存储器 (RAM, Random Access Memory)、 磁 碟或者光盘等各种可以存储程序代码的介质。
以上,以上实施例仅用以说明本申请的技术方案,而非对其限制; 尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术 人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换;而这些修改或者替换, 并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和 范围。

Claims

权 利 要 求
1、 一种分组数据网 PDN连接建立方法, 其特征在于, 包括: 可信无线局域网接入网 TWAN设备接收用户设备发送的触发消 息;
所述 TWAN设备从所述用户设备获取接入点名称 APN; 所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求 消息;
所述 TWAN设备接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息;
所述 TWAN设备将所述 IP地址发送给所述用户设备。
2、根据权利要求 1所述的方法, 其特征在于, 所述 TWAN设备从 所述用户设备获取接入点名称 APN包括:
所述 TWAN设备从所述触发消息中获取所述 APN;
或者,
所述 TWAN设备当确定所述用户设备已建立至少一个 PDN连接 时向所述用户设备发送请求消息, 所述 TWAN设备接收所述用户设备 发送的携带所述 APN的响应消息,所述 TWAN设备从所述响应消息中 获取所述 APN;
或者,
所述 TWAN设备接收所述用户设备发送的携带所述 APN的请求 消息, 所述 TWAN设备从所述请求消息中获取所述 APN。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述 TWAN设 备向 PDN网关发送携带所述 APN的建立会话请求消息, 包括:
所述 TWAN设备确定所述 APN为非默认 APN时向所述 PDN网关 发送所述建立会话请求消息。
4、 一种分组数据网 PDN连接建立方法, 其特征在于, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送携带接入点名称 APN的触发消息, 所述触发消息触发 所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求消息, 所述 TW AN设备接收所述 PDN网关返回的携带 IP地址的建立会话响 应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
5、 一种分组数据网 PDN连接建立方法, 其特征在于, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网
TW AN设备发送触发消息;
所述用户设备接收所述 TWAN设备发送的请求消息;
所述用户设备向所述 TWAN设备发送携带所述 APN的响应消息, 所述响应消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的 建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
6、 一种分组数据网 PDN连接建立方法, 其特征在于, 包括: 用户设备确定待建立连接的 PDN类型;
所述用户设备根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息;
所述用户设备向所述 TWAN设备发送携带所述 APN的请求消息, 所述请求消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的 建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的建立会 话响应消息;
所述用户设备接收所述 TWAN设备发送的所述 IP地址。
7、 一种分组数据网 PDN连接建立方法, 其特征在于, 包括: 可信无线局域网接入网 TWAN设备从用户设备获取接入点名称 APN, 从归属用户服务器 /认证授权计费 HSS/AAA获取所述用户设备 的签约信息;
所述 TWAN设备至少根据所述 APN和所述签约信息, 确定 PDN 网关;
所述 TWAN设备向所确定的 PDN网关发送携带所述 APN的建立 会话请求消息; 所述 TWAN设备接收所述所确定的 PDN网关返回的携带 IP地址 的建立会话响应消息;
所述 TWAN设备将所述 IP地址发送给所述用户设备。
8、根据权利要求 7所述的方法, 其特征在于, 所述 TWAN设备从 用户设备获取接入点名称 APN, 包括:
所述 TWAN设备在所述用户设备与所述 HSS/AAA执行扩展认证 协议 EAP鉴权过程中接收所述用户设备或所述 HSS/AAA发送的携带 所述 APN的消息。
9、根据权利要求 7所述的方法, 其特征在于, 所述 TWAN设备从 用户设备获取接入点名称 APN, 包括:
可信无线局域网接入网网关 TWAG接收可信无线局域网接入网 接入对端 /代理 TWAP发送的携带所述 APN的第一无线局域网 WLAN 附着请求, 所述 APN为所述 TWAP在所述用户设备与所述 HSS/AAA 执行扩展认证协议 EAP鉴权过程中从所述用户设备或所述 HSS/AAA 发送的消息中获取。
10、 根据权利要求 7至 9中任一项所述的方法, 其特征在于, 所 述从归属用户服务器 /认证授权计费 HSS/AAA获取所述用户设备的签 约信息, 包括:
所述 TWAG接收所述 TWAP发送的携带所述签约信息的第二 WLAN附着请求, 所述签约信息由所述 TWAP从所述 HSS/AAA中获 取。
1 1、 根据权利要求 7至 10中任一项所述的方法, 其特征在于, 所 述建立会话请求消息中还携带 PDN类型;
所述 TWAN设备向所确定的 PDN网关发送建立会话请求消息之 前, 还包括:
所述 TWAN设备至少根据所述签约信息, 确定所述 PDN类型。
12、根据权利要求 1 1所述的方法, 其特征在于, 所述 TWAN设备 至少根据所述签约信息, 确定所述 PDN类型, 包括:
若所述 TWAN设备至少根据所述签约信息确定所述用户设备只 允许分配互联网协议第四版 IPV4的地址,则所述 TWAN设备确定所述 PDN类型为 IPV4;
或者,
若 TWAN设备至少根据所述签约信息确定所述用户设备只允许 分配互联网协议第六版 IPV6的地址, 则所述 TWAN设备确定所述 PDN类型为 IPV6;
或者,
若所述 TWAN设备至少根据所述签约信息确定所述用户设备允 许分配 IPV4的地址和 IPV6的地址, 则所述 TWAN设备确定所述 PDN 类型为 IPV4V6;
或者,
若所述 TWAN设备至少根据所述签约信息确定所述用户设备允 许分配 IPV4V6的地址, 则所述 TWAN设备确定所述 PDN类型为 IPV4V6。
13、 一种可信无线局域网接入网设备, 其特征在于, 包括: 接收模块, 用于接收用户设备发送的触发消息;
获取模块, 用于从所述用户设备获取接入点名称 APN; 发送模块,用于向分组数据网 PDN网关发送携带所述 APN的建立 会话请求消息;
所述接收模块,还用于接收所述 PDN网关返回的携带 IP地址的建 立会话响应消息;
所述发送模块, 还用于将所述 IP地址发送给所述用户设备。
14、 根据权利要求 13所述的可信无线局域网接入网设备, 其特 征在于, 所述获取模块至少包括以下一种模块:
第一获取模块, 用于从所述触发消息中获取 APN;
第二获取模块, 用于当确定所述用户设备已建立至少一个 PDN 连接时向所述用户设备发送请求消息,接收所述用户设备发送的携带 所述 APN的响应消息, 从所述响应消息中获取所述 APN;
第三获取模块,用于接收所述用户设备发送的携带所述 APN的请 求消息, 从所述请求消息中获取所述 APN。
15、 根据权利要求 13或 14所述的可信无线局域网接入网设备, 其特征在于, 还包括:
确定模块, 用于确定所述 APN是否为非默认 APN, 并在确定所述 APN为非默认 APN时触发所述发送模块向所述 PDN网关发送所述建 立会话请求消息。
16、 一种用户设备, 其特征在于, 包括:
确定模块, 用于确定待建立连接的分组数据网 PDN类型; 发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息, 所述触发消息触发所述 TWAN设备向 PDN 网关发送携带所述 APN的建立会话请求消息,所述 TWAN设备接收所 述 PDN网关返回的携带 IP地址的建立会话响应消息;
接收模块, 用于接收所述 TWAN设备发送的所述 IP地址。
17、 一种用户设备, 其特征在于, 包括:
确定模块, 用于确定待建立连接的分组数据网 PDN类型; 发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网
TWAN设备发送触发消息;
接收模块, 用于接收所述 TWAN设备发送的请求消息; 所述发送模块,还用于向所述 TWAN设备发送携带所述 APN的响 应消息,所述响应消息触发所述 TWAN设备向 PDN网关发送携带所述
APN的建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的 建立会话响应消息;
所述接收模块, 还用于接收所述 TWAN设备发送的所述 IP地址。
18、 一种用户设备, 其特征在于, 包括:
确定模块, 用于确定待建立连接的 PDN类型;
发送模块,用于根据所确定的 PDN类型向可信无线局域网接入网 TWAN设备发送触发消息;
所述发送模块,还用于向所述 TWAN设备发送携带所述 APN的请 求消息,所述请求消息触发所述 TWAN设备向 PDN网关发送携带所述 APN的建立会话请求消息,并接收所述 PDN网关返回的携带 IP地址的 建立会话响应消息;
接收模块, 用于接收所述 TWAN设备发送的所述 IP地址。
19、 一种可信无线局域网接入网设备, 其特征在于, 包括: 获取模块, 用于从用户设备获取接入点名称 APN, 从归属用户服 务器 /认证授权计费 HSS/AAA获取所述用户设备的签约信息;
确定模块, 用于至少根据所述 APN和所述签约信息, 确定分组数 据网 PDN网关;
发送模块,用于向所确定的 PDN网关发送携带所述 APN的建立会 话请求消息;
接收模块,用于接收所述所确定的 PDN网关返回的携带 IP地址的 建立会话响应消息;
所述发送模块, 还用于将所述 IP地址发送给所述用户设备。
20、 根据权利要求 19所述的可信无线局域网接入网设备, 其特 征在于, 所述获取模块具体用于:在所述用户设备与所述 HSS/AAA 执行扩展认证协议 EAP鉴权过程中接收所述用户设备或所述 HSS/AAA发送的携带所述 APN的消息。
21、 根据权利要求 19或 20所述的可信无线局域网接入网设备, 其特征在于, 所述建立会话请求消息中还携带 PDN类型;
所述确定模块, 还用于至少根据所述签约信息, 确定所述 PDN 类型。
22、 根据权利要求 21所述的可信无线局域网接入网设备, 其特 征在于, 所述确定模块具体用于:若所述 TWAN设备至少根据所述签 约信息确定所述用户设备只允许分配互联网协议第四版 IPV4的地址, 则确定所述 PDN类型为 IPV4;
或者,
若至少根据所述签约信息确定所述用户设备只允许分配互联网 协议第六版 IPV6的地址, 则确定所述 PDN类型为 IPV6;
或者,
若至少根据所述签约信息确定所述用户设备允许分配 IPV4的地 址和 IPV6的地址, 则确定所述 PDN类型为 IPV4V6;
或者,
若所述至少根据所述签约信息确定所述用户设备允许分配 IPV4V6的地址, 则确定所述 PDN类型为 IPV4V6
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