WO2015117271A1 - 一种标识交互方法及设备 - Google Patents

一种标识交互方法及设备 Download PDF

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Publication number
WO2015117271A1
WO2015117271A1 PCT/CN2014/071905 CN2014071905W WO2015117271A1 WO 2015117271 A1 WO2015117271 A1 WO 2015117271A1 CN 2014071905 W CN2014071905 W CN 2014071905W WO 2015117271 A1 WO2015117271 A1 WO 2015117271A1
Authority
WO
WIPO (PCT)
Prior art keywords
local area
user equipment
wireless local
area network
3gpp access
Prior art date
Application number
PCT/CN2014/071905
Other languages
English (en)
French (fr)
Inventor
季莉
张宏卓
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/071905 priority Critical patent/WO2015117271A1/zh
Priority to EP14881545.9A priority patent/EP3099110B1/en
Priority to CN201480000346.XA priority patent/CN105264966B/zh
Publication of WO2015117271A1 publication Critical patent/WO2015117271A1/zh
Priority to US15/230,787 priority patent/US9860827B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an identification interaction method and device. Background technique
  • the UE User Equipment
  • the UE is a non-3GPP (3rd Generation Partnership Project) network access point, such as a WLAN (Wireless Local), based on a policy issued by a server that stores UE information. Area Networks, Wireless LAN).
  • the WLAN deployed by the roaming operator exists in the roaming place, and may also include the WLAN deployed by the home operator of the UE, and the UE may preferentially access the home operator and/or Or the WLAN that the roaming operator does not want to access.
  • the embodiment of the invention discloses an identification interaction method and a device, which are used to prevent the UE from preferentially accessing the WLAN that the home operator and/or the roaming operator does not want to access.
  • An embodiment of the present invention provides an identification interaction method, including:
  • the 3GPP access network entity receives the identifier of the wireless local area network sent by the core network device of the roaming operator and the priority information of the wireless local area network, where the identifier of the wireless local area network is operated by the home operator of the user equipment and/or roaming
  • the identifier of the wireless local area network that the user equipment accesses is a 3GPP access network entity where the user equipment is located, and the 3GPP access network entity according to the wireless local area network
  • the priority information sends the identifier of the wireless local area network to the user equipment.
  • the priority information of the wireless local area network is used to indicate that the home operator of the user equipment allows the priority of the wireless local area network accessed by the user equipment.
  • the priority of the wireless local area network that the roaming operator allows the user equipment to access is high; or the priority information of the wireless local area network indicates the attribution of the user equipment
  • the priority of the wireless local area network that the business operator allows the user equipment to access is lower than the priority of the wireless local area network that the roaming operator allows the user equipment to access.
  • the 3GPP access network entity sends the user equipment to the user equipment according to the priority information of the wireless local area network.
  • the identifiers for sending wireless LANs include:
  • the 3GPP access network entity receives the wireless local area network (LAN) sent by the core network device.
  • the method further includes: the 3GPP access network entity receiving a service request or an attach request sent by the user equipment; the 3GPP access network entity to the core network device Sending the service request or the attach request, so that the core network device sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity according to the service request or the attach request .
  • the 3GPP access network entity receives the wireless local area network (LAN) sent by the core network device.
  • the identifier and the priority information of the wireless local area network include:
  • the 3GPP access network entity receives an initial context setup request sent by the core network device, where the initial context setup request includes an identifier of the wireless local area network and priority information of the wireless local area network.
  • ⁇ is a method for identifying an interaction, including:
  • the identifier of the line local area network is an identifier of a wireless local area network that the home operator of the user equipment and/or the roaming operator allows the user equipment to access, and the 3GPP access network entity is a roaming place where the user equipment is located.
  • 3GPP access network entity ;
  • the core network device responds to the message, and sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity, so that the 3GPP access network entity according to the wireless local area network
  • the priority information sends an identification of the wireless local area network to the user equipment.
  • the priority information of the wireless local area network is used to indicate that the home operator of the user equipment allows the priority of the wireless local area network accessed by the user equipment.
  • the priority of the wireless local area network that the roaming operator allows the user equipment to access is high; or the priority information of the wireless local area network indicates that the home operator of the user equipment allows the user equipment to access the wireless
  • the priority of the local area network is lower than that of the wireless local area network that the roaming operator allows the user equipment to access.
  • the core network device sends a create session request to the data gateway according to the attach request, so that the data gateway sends the create session response to the core network device.
  • the third embodiment of the present invention provides a 3GPP access network entity, where the 3GPP access network entity is a 3GPP access network entity of a roaming place where the user equipment is located, and includes:
  • a receiving unit configured to receive an identifier of a wireless local area network sent by a core network device of the roaming operator, and priority information of the wireless local area network, where the identifier of the wireless local area network is a home operator of the user equipment and/or roaming The identifier of the wireless local area network that the local operator allows the user equipment to access;
  • a sending unit configured to send, to the user equipment, an identifier of the wireless local area network according to the priority information of the wireless local area network.
  • the priority information of the wireless local area network is used to indicate that the home operator of the user equipment allows the priority of the wireless local area network accessed by the user equipment. The priority of the wireless local area network that the roaming operator allows the user equipment to access is high; or
  • the priority information of the wireless local area network indicates that the priority of the wireless local area network that the user equipment of the user equipment allows the user equipment to access is higher than the priority of the wireless local area network that the roaming operator allows the user equipment to access. Low level.
  • the sending unit is configured to send, according to the priority information of the wireless local area network, the user equipment
  • the identifier of the wireless local area network includes: a priority of the local area network, and sends the identifier of the wireless local area network corresponding to the priority of the wireless local area network to the user equipment according to the priority of the wireless local area network.
  • the receiving unit is further configured to receive the service request sent by the user equipment, in any one of the three possible implementation manners of the third aspect to the third aspect. Or attach request;
  • the sending unit is further configured to send the service request or the attach request to the core network device, so that the core network device accesses the 3GPP according to the service request or the attach request.
  • the network entity sends the identifier of the wireless local area network and the priority information of the wireless local area network.
  • the receiving unit receives the identifier of the wireless local area network sent by the core network device, and the The way of WLAN priority information is as follows:
  • the 3GPP access network entity receives an initial context setup request sent by the core network device, where the initial context setup request includes an identifier of the wireless local area network and priority information of the wireless local area network.
  • the fourth embodiment of the present invention provides a core network device, where the core network device is a roaming network device of a roaming service that the user equipment roams to, including:
  • a receiving unit configured to receive a message for triggering, by the core network device, a identifier of a wireless local area network and a priority information of the wireless local area network to a 3GPP access network entity of a roaming place where the user equipment is located, the wireless
  • the identifier of the local area network is an identifier of a wireless local area network that the home operator of the user equipment allows the user equipment to access;
  • a sending unit configured to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity, so that the 3GPP access network entity is configured according to the wireless local area network
  • the priority information sends an identification of the wireless local area network to the user equipment.
  • the priority information of the wireless local area network is used to indicate that the home operator of the user equipment allows the priority of the wireless local area network accessed by the user equipment. The priority of the wireless local area network that the roaming operator allows the user equipment to access is high; or
  • the priority information of the wireless local area network indicates that the priority of the wireless local area network that the home operator of the user equipment allows the user equipment to access is lower than the priority of the wireless local area network that the roaming operator allows the user equipment to access.
  • the method for triggering the core network device to send to the 3GPP access network entity includes: a service request from the user equipment sent by the 3GPP access network entity; or
  • the receiving unit is further configured to receive an attach request from the user equipment sent by the 3GPP access network entity;
  • the sending unit is further configured to send a create session request to the data gateway according to the attach request, so that the data gateway sends the create session response to the core network device.
  • the 3GPP access network entity of the roaming operator that the UE roams from the core network device obtains the identifier of the WLAN and the priority information corresponding to the WLAN, and provides the user with the priority information of the WLAN.
  • the device sends the identifier of the WLAN, so that when the user equipment transfers the service to the WLAN, the user equipment can learn that the WLAN can access the WLAN according to the priority of the WLAN.
  • FIG. 1 is a schematic diagram of an identification interaction method disclosed in an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of another method for identifying an interaction disclosed in an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of still another method for identifying an identity disclosed in an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of still another method for identifying an identity disclosed in an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of still another method for identifying an identity disclosed in an embodiment of the present invention
  • FIG. FIG. 6 is a schematic flowchart of still another method for identifying an identity according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a 3GPP access network entity according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of another 3GPP access network entity according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of a core network device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another core network device according to an embodiment of the present invention. detailed description
  • the present invention provides an identification interaction method and device, which can enable a user equipment in a roaming state to select a wireless local area network that the home operator of the user equipment allows the user equipment to access, thereby avoiding that the UE may preferentially access the home operation.
  • the WLAN that the carrier and/or the roaming operator does not wish to access.
  • the 3GPP access network entity in the present invention may be an evolved base station/mobile communication system, or may be a combination of an evolved base station/mobile communication system and a single radio controller (SRC), which is not implemented in the embodiment of the present invention. limited.
  • the ground interface between the single wireless controller and the mobility management entity is the SN of the long-term evolution network standard
  • the air interface between the single wireless controller and the user equipment is the Uu interface.
  • the single wireless controller and the evolved base station/mobile communication system can communicate with each other.
  • the 3GPP access network entity in the present invention is a combination of the evolved base station/mobile communication system and a single wireless controller
  • the single wireless The controller may receive the message from the previous node, such as the mobility management entity or the serving gateway in the core network device, and then forward the message to the evolved base station/mobile communication system.
  • the evolved base station/mobile communication system may use the user.
  • the message received by the device is forwarded to a single wireless controller.
  • the following embodiments are described in detail in the Long Term Evolution LTE network format.
  • the 3GPP access network entity in the embodiment of the present invention is an access network entity in which the user equipment is roaming, a core network device (for example, an MME (Mobility Management Entity), or an O AM (Operation, Administration and Maintenance, the system is the core network device where the user equipment is located. Core network design described below The prepared actions can all be performed by the MME.
  • MME Mobility Management Entity
  • O AM Operaation, Administration and Maintenance
  • the core network device of the roaming area can obtain the policy information of the home operator from the Home Subscriber Server (HSS) of the home operator of the user equipment through the Sa6 interface, including the roaming core of the present invention.
  • HSS Home Subscriber Server
  • the priority information of the WLAN configured by the network device, or in the present invention the home operator may notify the roaming operator of the policy information, and then the roaming operator pre-configures the device in the roaming core network device.
  • FIG. 1 is a schematic flowchart diagram of an identification interaction method according to an embodiment of the present invention. As shown in FIG. 1, the method may include the following steps:
  • the S101, the 3GPP access network entity receives the wireless local area network identifier that the home network device allows the user equipment to access and the priority information of the wireless local area network.
  • the identifier of the WLAN may be an SSID (Service Set Identifier), a BSSID (Basic Service Set Identifier), or an ESSID (Extended Service).
  • the Set Identifier, the extended service set identifier, or the HESSID (Homogeneous Extended Service Set Identifier), is not limited in the embodiment of the present invention.
  • the identifier of the wireless local area network is an identifier of the wireless local area network that the user equipment of the user equipment allows the user equipment to access, and/or the identifier of the wireless local area network that the roaming operator of the user equipment allows the user equipment to access.
  • the identifier of the wireless local area network and the priority information of the wireless local area network may carry priority information in an initial context establishment request sent by the core network device to the 3GPP access network entity.
  • the identifier of the wireless local area network and the priority information of the wireless local area network may exist independently in the initial context establishment request, or may exist in a Handover Restriction List (HRL) of the initial context establishment request (such as a table).
  • HRL Handover Restriction List
  • the embodiment of the present invention is not limited.
  • the priority information may also be sorting information.
  • the 3GPP access network entity receives the WLAN identity list that allows the user to access, including the identity of the wireless local area network that the home operator of the user equipment allows the user equipment to access, and/or the roaming operator allows the user equipment to access.
  • the WLAN identity of the WLAN is higher, for example, the WLAN identity list includes WLAN A, WLAN B, and WLAN C, where WLAN A and WLAN B are the home operators that allow the user equipment to access.
  • WLAN, WLAN C is a roaming operator that allows users WLAN A has a higher priority than WLAN B, and WLAN has a higher priority than WLAN C.
  • Table 1 is a handover restricted list disclosed in the embodiment of the present invention.
  • the WLAN Priority Indicator (Wireless Local Area Network Priority Information) in Table 1 is hereinafter referred to as WPI, that is, newly added priority information, and the priority information indicates user equipment.
  • WPI Wireless Local Area Network Priority Information
  • the WLAN operator allows the WLAN to access the WLAN with respect to the priority configuration of the WLAN that the roaming operator allows the user equipment to access, that is, the priority information may indicate that the priority is low, and the priority may be high.
  • the priority of the wireless local area network that the home operator allows the user equipment to access is low, and the priority of the wireless local area network that the home operator allows the user equipment to access is high, or as long as the priority information is
  • the WLAN which indicates that the home operator of the user equipment allows the user equipment to access, has a higher priority than the wireless LAN that the roaming operator allows the user equipment to access.
  • the name of the priority information is not limited.
  • the 3GPP access network entity sends the identifier of the wireless local area network to the user equipment according to the priority information of the wireless local area network.
  • the 3GPP access network entity sends the wireless local area network identifier for the service transfer to the user equipment according to the WPI priority information. For example, if the priority information identifies that the WLAN of the home operator allows the user to access the WLAN, the 3GPP access network entity only selects the wireless local area network identifier that the home operator allows the user equipment to access, and sends the WLAN identity to the UE. Or, the wireless local area network identifier and the wireless local area network identifier that the user is allowed to access are sent to the UE together, but the priority of the wireless local area network that the UE is allowed to access by the UE is high.
  • the 3GPP access network entity may select the WLAN to be sent to the UE for service transfer according to the information sent by the core network device, so that the user equipment can preferentially access the WLAN allowed to be accessed by the home operator, and the WLAN is avoided. Policy conflicts between home operators and roaming operators. Table 1 Switching restricted list
  • the 3GPP access network entity receives the identifiers of the wireless local area networks and the priority information of the wireless local area networks, so that the 3GPP access network entity can send the priority information to the user equipment according to the priority information of the wireless local area network.
  • FIG. 2 is a schematic flow chart of another method for identifying an interaction disclosed in an embodiment of the present invention. As shown in FIG. 2, the method may include the following steps:
  • the 3GPP access network entity receives a service request or an attach request sent by the user equipment.
  • the 3GPP access network entity sends a service request or an attach request to the core network device.
  • the 3GPP access network entity sends a service request or an attach request to the core network device, so that the core network device sends the identifier of the wireless local area network and the priority of the wireless local area network to the 3GPP access network entity according to the service request or the attach request. Level information.
  • the core network device sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity after receiving the service request;
  • the 3GPP access network entity sends an attach request to the core network device, and after receiving the P payment request, the core network device sends a create session request to the data gateway through the service gateway, and then the core network device receives the data gateway through the service gateway.
  • the created session response is sent, and the core network device sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity after receiving the creation session response from the data gateway.
  • the 3GPP access network entity receives the identifier of the wireless local area network sent by the core network device, and Priority information of the line LAN.
  • the identifier of the WLAN may be an SSID, or may be a BSSID, or may be an ESSID, or a HESSID, which is not limited in the embodiment of the present invention.
  • the method for implementing the WLAN identifier and the priority information of the WLAN is as shown in Table 1, or the priority information may also be the sorting information, that is, the 3GPP access network entity receives the user access.
  • a list of WLAN identifiers including the identifier of the wireless local area network that the home operator of the user equipment allows the user equipment to access, and/or the identifier of the wireless local area network that the roaming operator allows the user equipment to access, and the higher the front WLAN
  • the WLAN identity list includes WLAN A, WLAN B, and WLAN C, where WLAN A and WLAN B are WLANs that the home carrier allows the user equipment to access, and WLAN C is the roaming operator that allows the user equipment to access.
  • WLAN, WLAN A has a higher priority than WLAN B
  • WLAN B has a higher priority than WLAN C.
  • the 3GPP access network entity sends, to the user equipment, an identifier of the wireless local area network for performing service transfer by the user equipment according to the priority information of the wireless local area network.
  • the ij 3GPP access network sends an identifier of the wireless local area network to the user equipment according to the information, for example, the WPI identifies the home operator to allow the user equipment.
  • the 3GPP access network entity preferentially delivers only the WLAN to which the home operator allows the user equipment to access, or simultaneously delivers the WLAN and the roaming operator that the home carrier allows the user equipment to access.
  • the WLAN that allows the user equipment to access, but indicates that the WLAN that the home operator is allowed to access has a high priority, for example, the WLAN that the home carrier allows the user equipment to access is ranked first.
  • the 3GPP access network entity sends a service request or an attach request from the user equipment to the core network device, so that the core network device sends the identifier of the wireless local area network and the priority of the wireless local area network to the 3GPP access network entity.
  • Level information the 3GPP access network entity receives the identifier of the wireless local area network sent by the core network device and the priority information of the wireless local area network, so that the 3GPP access network entity sends the wireless local area network for the service transfer to the user equipment according to the priority information of the wireless local area network.
  • the identifier is such that the UE can transfer the service to the corresponding WLAN according to the sequence of the received wireless local area network identifier (indicating the priority), because the priority of the wireless local area network is uniformly configured by the core network device of the roaming operator Or sending, can avoid the UE preferential access to the home operator or roaming place The WLAN that the operator does not want to access.
  • FIG. 3 is a schematic flow chart of still another method for identifying an identity disclosed in an embodiment of the present invention. As shown in FIG. 3, the method may include the following steps:
  • the core network device receives a message for triggering the core network device to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the message that the core network device receives the identifier for triggering the core network device to send the wireless local area network to the 3GPP access network entity and the priority information of the wireless local area network may be that the core network device receives the user sent by the 3GPP access network entity.
  • the core network device responds to the foregoing message, and sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the core network device responds to the message, and sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the identifier of the wireless local area network and the priority information of the wireless local area network may be included in an HRL (Handover Restriction List), as shown in Table 1, the HRL is included in the core network device received by the 3GPP access network entity.
  • the initial context establishment request may also be independent of the HRL and included in the initial context establishment request, which is not limited by the embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of still another method for identifying an identity disclosed in an embodiment of the present invention. As shown in FIG. 4, the method may include the following steps:
  • the core network device receives an attach request from the user equipment sent by the 3GPP access network entity.
  • the core network device sends a create session request to the data gateway according to the attach request.
  • the core network device may send a creation tongue to the data gateway through the service gateway. Request.
  • the core network device receives a create session response sent by the data gateway.
  • the core network device may receive the create session response sent by the data gateway through the serving gateway, and the create session response is used to trigger the core network device to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the core network device responds to create a tongue response, and sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • FIG. 5 is a schematic flow chart of still another method for identifying an identity disclosed in an embodiment of the present invention. As shown in FIG. 5, the identification interaction method may include the following steps:
  • the user equipment sends a monthly service request to the 3GPP access network entity.
  • the 5502 the 3GPP access network entity receives the service request sent by the user equipment.
  • the 3GPP access network entity sends a service request to the core network device.
  • the core network device receives a service request sent by a 3GPP access network entity.
  • the core network device sends an initial context setup request to the 3GPP access network entity.
  • the initial context establishment request includes the identifier of the wireless local area network and the priority information of the wireless local area network, and the identifier of the wireless local area network and the priority information of the wireless local area network may exist independently in the initial context establishment request, or may exist in the initial
  • the embodiment of the present invention is not limited in the restricted list of the context establishment request (as shown in Table 1).
  • the 5506, the 3GPP access network entity receives the identifier of the wireless local area network sent by the core network device and the priority information of the wireless local area network.
  • the 5507, 3GPP access network entity sends the identifier of the wireless local area network to the user equipment according to the priority information of the wireless local area network.
  • the user equipment receives an identifier of a target wireless local area network that is sent by the 3GPP access network entity.
  • the embodiment of the present invention can enable the access network entity of the roaming area to send the WLAN identity to the user equipment according to the received wireless local area network identifier and the wireless local area network priority information.
  • FIG. 6 is a schematic flowchart of still another method for identifying an identity disclosed in an embodiment of the present invention.
  • the identification interaction method may include the following steps:
  • the user equipment sends an attach request to the 3GPP access network entity.
  • the 3GPP access network entity receives an attach request sent by the user equipment.
  • the 3GPP access network entity sends an attach request to the core network device.
  • the core network device receives an attach request sent by a 3GPP access network entity.
  • the core network device sends a create session request to the serving gateway.
  • the service gateway sends a create request to the data gateway.
  • the data gateway sends a create response to the serving gateway.
  • the serving gateway sends a create session response to the core network device.
  • the core network device receives a create session response.
  • the core network device sends an initial context setup request to the 3GPP access network entity.
  • the initial context establishment request includes the identifier of the wireless local area network and the priority information of the wireless local area network, and the identifier of the wireless local area network and the priority information of the wireless local area network may exist independently in the initial context establishment request, or may exist in the initial
  • the embodiment of the present invention is not limited in the restricted list of the context establishment request (as shown in Table 1).
  • the 3GPP access network entity receives the identifier of the wireless local area network sent by the core network device and the priority information of the wireless local area network.
  • the 3GPP access network entity sends the identifier of the wireless local area network to the user equipment according to the priority information of the wireless local area network.
  • the user equipment receives the priority information of the target WLAN sent by the 3GPP access network entity.
  • the embodiment of the present invention may enable the access network entity of the roaming area to provide the user equipment according to the received wireless local area network identifier and the wireless local area network priority information. Send a WLAN ID.
  • FIG. 7 is a schematic structural diagram of a 3GPP access network entity according to an embodiment of the present invention.
  • the 3GPP access network entity 700 can include a receiving unit 701 and a sending unit 702:
  • the receiving unit 701 is configured to receive an identifier of the wireless local area network sent by the core network device and priority information of the wireless local area network.
  • the identifier of the wireless local area network is a user-allowed user of the user equipment.
  • the identity of the wireless local area network to which the device accesses and/or the identity of the wireless local area network to which the roaming operator allows the user equipment to access, the 3GPP access network entity 700 is a 3GPP access network entity in which the user equipment is located.
  • the identifier of the WLAN may be an SSID, or may be a BSSID, or may be an ESSID, or a HESSID, which is not limited in the embodiment of the present invention.
  • the priority information of the WLAN is used to indicate that the eNB of the user equipment allows the priority of the WLAN to be accessed by the user equipment to be compared with the priority of the WLAN that the roaming operator allows the user equipment to access. Configuration.
  • the receiving unit 701 receives the identifier of the wireless local area network sent by the core network device and the priority information of the wireless local area network, where the receiving unit 701 receives the initial context establishment request sent by the core network device, where the initial context establishment request includes The identity of the wireless local area network and the priority information of the wireless local area network.
  • the identifier of the wireless local area network and the priority information of the wireless local area network may exist independently in the initial context establishment request, or may exist in the handover restricted list of the initial context establishment request (as shown in Table 1). The embodiments of the present invention are not limited.
  • the transmitting unit 702 transmits the identifier of the wireless local area network to the user equipment according to the priority information of the wireless local area network.
  • the receiving unit 701 is further configured to receive a service request or an attach request sent by the user equipment.
  • the sending unit 7023 ⁇ 4 is configured to send a service request or an attach request to the core network device.
  • the core network device sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity 700 after receiving the service request;
  • the unit 702 sends an attach request to the core network device, after the core network device receives the attach request, the core network device sends a create session request to the data gateway through the service gateway, and then the core network device receives the create session response sent by the data gateway through the service gateway.
  • the core network device After receiving the session creation response from the data gateway, the core network device sends the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity 700.
  • the embodiment of the present invention can enable the access network entity of the roaming area to send the WLAN identity to the user equipment according to the received wireless local area network identifier and the wireless local area network priority information.
  • FIG. 8 is a structure of another 3GPP access network entity disclosed in an embodiment of the present invention. Schematic. As shown in FIG. 8, the 3GPP access network entity 800 includes a memory 801 and a processor 802. The memory 801 stores a set of program codes, and the processor 802 is configured to call the program code stored in the memory 801 for performing the following operations. :
  • the wireless local area network identifier is a wireless local area network identifier that the user equipment of the user equipment allows the user equipment to access, and/or the roaming operator allows the user equipment to access
  • the identity of the WLAN the 3GPP access network entity 800 is a 3GPP access network entity where the user equipment is located;
  • the identifier of the wireless local area network is sent to the user equipment according to the priority information of the wireless local area network.
  • the processor 802 before the processor 802 receives the identifier of the wireless local area network and the priority information of the wireless local area network transmitted by the core network device, the processor 802 calls the program code stored in the memory 801 to perform the following operations:
  • the manner in which the processor 802 receives the identifier of the wireless local area network and the priority information of the wireless local area network sent by the core network device is specifically:
  • the initial context setup request includes an identifier of the wireless local area network and priority information of the wireless local area network.
  • the embodiment of the present invention can enable the access network entity of the roaming area to send the WLAN identity to the user equipment according to the received wireless local area network identifier and the wireless local area network priority information.
  • FIG. 9 is a schematic structural diagram of a core network device according to an embodiment of the present invention.
  • the core network device 900 includes a receiving unit 901 and a transmitting unit 902:
  • the receiving unit 901 is configured to receive a message for triggering the core network device 900 to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the receiving unit 901 receives a message for triggering the core network device 900 to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity, where the receiving unit 901 may receive the 3GPP access network.
  • the identifier of the wireless local area network may be an SSID or a BSSID.
  • the embodiment of the present invention is not limited to ESSID, or HESSID.
  • the priority information of the WLAN is used to indicate that the eNB of the user equipment allows the priority of the WLAN to be accessed by the user equipment to be compared with the priority of the WLAN that the roaming operator allows the user equipment to access. Configuration.
  • the receiving unit 901 receives a message for triggering the core network device 900 to send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity, where the receiving unit 901 receives the data gateway and sends the message. Create a tongue response.
  • the wireless local area network is a wireless local area network that the user equipment of the user equipment allows the user equipment to access
  • the 3GPP access network entity is the 3GPP access network entity of the roaming place where the user equipment is located.
  • the sending unit 902 is configured to respond to the message and send the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity.
  • the receiving unit 901 is further configured to receive an attach request from the user equipment sent by the 3GPP access network entity.
  • the sending unit 9023 ⁇ 4 is configured to send a create session request to the data gateway according to the attach request.
  • the create session request is used to enable the data gateway to send a create session response to the core network device 900.
  • FIG. 10 is a schematic structural diagram of another core network device according to an embodiment of the present invention.
  • the core network device 1000 includes a memory 1001 and a processor 1002, and a memory code, for performing the following operations:
  • the wireless local area network identifier is a wireless local area network identifier that the home operator of the user equipment allows the user equipment to access and And the identifier of the wireless local area network that the roaming operator allows the user equipment to access, and the 3GPP access network entity is the 3GPP access network entity of the roaming place where the user equipment is located; And responding to the message, and sending the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity, so that the 3GPP access network entity sends the identifier of the target wireless local area network for the user equipment to select to the user equipment.
  • the identifier of the WLAN may be an SSID, or may be a BSSID, or may be an ESSID, or a HESSID, which is not limited in the embodiment of the present invention.
  • the priority information of the wireless local area network is used to indicate that the home business of the user equipment allows the wireless local area network that the user equipment accesses to access the priority of the wireless local area network that the roaming operator allows the user equipment to access.
  • the manner in which the processor 1002 receives a message for triggering the core network device 1000 to transmit the identifier of the wireless local area network and the priority information of the wireless local area network to the 3GPP access network entity is:
  • the processor 1002 receives an attach request from the user equipment sent by the 3GPP access network entity before receiving the create session response sent by the data gateway;
  • a create request is sent to the data gateway according to the attach request, so that the data gateway sends a create session response to the core network device.
  • the embodiment of the present invention can enable the access network entity of the roaming area to send the WLAN identity to the user equipment according to the received wireless local area network identifier and the wireless local area network priority information. .
  • the units in the router of the embodiment of the present invention may be combined, divided, and deleted according to actual needs, and may be through a general-purpose integrated circuit, such as a CPU (Central Processing Unit). Or implemented by an ASIC (Application Specific Integrated Circuit).
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by using a computer program to message related hardware, and the program can be stored in a computer readable storage medium, the program In execution, the flow of an embodiment of the methods as described above may be included.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本发明实施例涉及通信技术领域，公开了一种标识交互方法及设备，该方法包括3GPP接入网实体接收核心网设备发送的无线局域网的标识以及无线局域网的优先级信息，无线局域网的标识是用户设备的归属地运营商允许用户设备接入的无线局域网的标识，3GPP接入网实体是用户设备所处的漫游地的3GPP接入网实体；3GPP接入网实体根据无线局域网的优先级信息向用户设备发送无线局域网的标识。实施本发明实施例可以使处于漫游状态下的用户设备选择用户设备的归属地运营商和/或漫游地运营商允许用户设备接入的无线局域网。

Description

一种标识交互方法及设备
技术领域
本发明涉及通信技术领域， 具体涉及一种标识交互方法及设备。 背景技术
UE ( User Equipment, 用户设备）是根据保存有 UE^约信息的服务器下 发的相关策略来选择非 3GPP ( 3rd Generation Partnership Project, 笫三代合作 伙伴计划） 网络接入点的， 例如 WLAN ( Wireless Local Area Networks , 无线 局域网）。 在 UE漫游到漫游地的场景中， 漫游地存在着漫游地运营商所部署 的 WLAN, 可能还包含该 UE的归属地运营商所部署的 WLAN, UE可能优先接 入到归属地运营商和 /或漫游地运营商所不希望接入到的 WLAN中。 发明内容
本发明实施例公开了一种标识交互方法及设备， 用于避免 UE优先接入到 归属地运营商和 /或漫游地运营商所不希望接入到的 WLAN中。 本发明实施例笫一方面提供一种标识交互方法， 包括：
3GPP接入网实体接收漫游地运营商的核心网设备发送的无线局域网的标 识以及所述无线局域网的优先级信息，所述无线局域网的标识是用户设备的归 属地运营商和 /或漫游地运营商允许所述用户设备接入的无线局域网的标识， 所述 3GPP接入网实体是所述用户设备所处的漫游地的 3GPP接入网实体； 所述 3GPP接入网实体根据所述无线局域网的优先级信息向所述用户设备 发送所述无线局域网的标识。 基于笫一方面，在笫一方面的笫一种可能实现方式中， 所述无线局域网的 优先级信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的 无线局域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的 优先级高；或者， 所述无线局域网的优先级信息表示所述用户设备的归属地运 营商允许所述用户设备接入的无线局域网的优先级比漫游地运营商允许所述 用户设备接入的无线局域网的优先级低。 基于笫一方面或笫一方面的笫一种可能实现方式，在笫一方面的笫二种可 能实现方式中， 所述 3GPP接入网实体根据所述无线局域网的优先级信息向所 述用户设备发送无线局域网的标识包括：
所述 3GPP接入网实体根据所述无线局域网的优先级信息确定所述无线局 域网的优先级；
所述 3GPP接入网实体按照所述无线局域网的优先级向所述用户设备发送
基于笫一方面至笫一方面的笫二种可能实现方式的任意一种，在笫一方面 的笫三种可能实现方式中， 所述 3GPP接入网实体接收所述核心网设备发送的 无线局域网的标识以及所述无线局域网的优先级信息之前， 所述方法还包括： 所述 3GPP接入网实体接收用户设备发送的服务请求或附着请求； 所述 3GPP接入网实体向所述核心网设备发送所述服务请求或所述附着请 求， 以使所述核心网设备根据所述服务请求或所述附着请求向所述 3GPP接入 网实体发送无线局域网的标识以及所述无线局域网的优先级信息。 在笫一方面至笫一方面的笫三种可能实现方式的任意一种，在笫一方面的 笫四种可能实现方式中， 所述 3GPP接入网实体接收所述核心网设备发送的无 线局域网的标识以及所述无线局域网的优先级信息包括：
所述 3GPP接入网实体接收所述核心网设备发送的初始上下文建立请求， 所述初始上下文建立请求包括无线局域网的标识以及所述无线局域网的优先 级信息。 本发明实施例的笫二方面， ^是供一种标识交互方法， 包括：
漫游地运营商的核心网设备接收用于触发所述核心网设备向 3GPP接入网 实体发送无线局域网的标识以及所述无线局域网的优先级信息的消息，所述无 线局域网的标识是用户设备的归属地运营商和 /或漫游地运营商允许所述用户 设备接入的无线局域网的标识， 所述 3GPP接入网实体是所述用户设备所处的 漫游地的 3GPP接入网实体；
所述核心网设备响应所述消息， 并向所述 3GPP接入网实体发送所述无线 局域网的标识以及所述无线局域网的优先级信息， 以使所述 3GPP接入网实体 根据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识。 基于笫二方面，在笫二方面的笫一种可能实现方式中， 所述无线局域网的 优先级信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的 无线局域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的 优先级高；或者， 所述无线局域网的优先级信息表示所述用户设备的归属地运 营商允许所述用户设备接入的无线局域网的优先级比漫游地运营商允许所述 用户设备接入的无线局域网的优先级低。 基于笫二方面或笫二方面的笫一种可能实现方式，在笫二方面的笫二种可 能实现方式中， 所述用于触发所述核心网设备向所述 3GPP接入网实体发送所 述无线局域网的标识以及所述无线局域网的优先级信息的消息， 包括：
所述 3GPP接入网实体发送的来自用户设备的服务请求； 或
数据网关发送的创建会话响应。 基于笫二方面的笫二种可能实现方式，在笫二方面的笫三种可能实现方式 中， 所述用于触发所述核心网设备向所述 3GPP接入网实体发送所述无线局域 网的标识以及所述无线局域网的优先级信息的消息为所述数据网关发送的创 建会话响应， 所述方法还包括：
所述核心网设备接收所述 3GPP接入网实体发送的来自用户设备的附着请 求；
所述核心网设备根据所述附着请求向所述数据网关发送创建会话请求，以 使所述数据网关向所述核心网设备发送所述创建会话响应。 本发明实施例笫三方面提供一种 3GPP接入网实体， 所述 3GPP接入网实体 是用户设备所处的漫游地的 3GPP接入网实体， 包括：
接收单元，用于接收漫游地运营商的核心网设备发送的无线局域网的标识 以及所述无线局域网的优先级信息，所述无线局域网的标识是所述用户设备的 归属地运营商和 /或漫游地运营商允许所述用户设备接入的无线局域网的标 识；
发送单元，用于根据所述无线局域网的优先级信息向所述用户设备发送无 线局域网的标识。 基于笫三方面，在笫三方面的笫一种可能实现方式中， 所述无线局域网的 优先级信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的 无线局域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的 优先级高； 或者，
或者，所述无线局域网的优先级信息表示所述用户设备的归属地运营商允 许所述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设 备接入的无线局域网的优先级低。 基于笫三方面或笫三方面的笫一种可能实现方式，在笫三方面的笫二种可 能实现方式中，所述发送单元用于根据所述无线局域网的优先级信息向所述用 户设备发送无线局域网的标识， 包括： 局域网的优先级，并按照所述无线局域网的优先级向所述用户设备发送所述无 线局域网的优先级对应的所述无线局域网的标识。 基于笫三方面至笫三方面的笫二种可能实现方式的任意一种，在笫三方面 的笫三种可能实现方式中， 所述接收单元，还用于接收所述用户设备发送的服 务请求或附着请求；
所述发送单元，还用于向所述核心网设备发送所述服务请求或所述附着请 求， 以使所述核心网设备根据所述服务请求或所述附着请求向所述 3GPP接入 网实体发送所述无线局域网的标识以及所述无线局域网的优先级信息。 基于笫三方面至笫三方面的笫三种可能实现方式的任意一种，在笫三方面 的笫四种可能实现方式中，所述接收单元接收核心网设备发送的无线局域网的 标识以及所述无线局域网的优先级信息的方式具体为：
所述 3GPP接入网实体接收所述核心网设备发送的初始上下文建立请求， 所述初始上下文建立请求包括所述无线局域网的标识以及所述无线局域网的 优先级信息。 本发明实施例笫四方面提供一种核心网设备，所述核心网设备为用户设备 漫游到的漫游¾½营商的核心网设备， 包括：
接收单元，用于接收用于触发所述核心网设备向所述用户设备所处的漫游 地的 3GPP接入网实体发送无线局域网的标识以及所述无线局域网的优先级信 息的消息，所述无线局域网的标识是用户设备的归属地运营商允许所述用户设 备接入的无线局域网的标识；
发送单元， 用于响应所述消息， 并向所述 3GPP接入网实体发送所述无线 局域网的标识以及所述无线局域网的优先级信息， 以使所述 3GPP接入网实体 根据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识。 基于笫四方面，在笫四方面的笫一种可能实现方式中， 所述无线局域网的 优先级信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的 无线局域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的 优先级高； 或者，
所述无线局域网的优先级信息表示所述用户设备的归属地运营商允许所 述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设备接 入的无线局域网的优先级低。 基于笫四方面或笫四方面的笫一种可能实现方式，在笫四方面的笫二种可 能实现方式中， 所述用于触发所述核心网设备向所述 3GPP接入网实体发送所 述无线局域网的标识以及所述无线局域网的优先级信息的消息， 包括： 所述 3GPP接入网实体发送的来自用户设备的服务请求； 或
数据网关发送的创建会话响应。 基于笫四方面的笫二种可能实现方式，在笫四方面的笫三种可能实现方式 中， 所述用于触发所述核心网设备向所述 3GPP接入网实体发送所述无线局域 网的标识以及所述无线局域网的优先级信息的消息为所述数据网关发送的创 建会话响应；
所述接收单元， 还用于接收所述 3GPP接入网实体发送的来自所述用户设 备的附着请求；
所述发送单元，还用于根据所述附着请求向所述数据网关发送创建会话请 求， 以使所述数据网关向所述核心网设备发送所述创建会话响应。 应用本发明实施例提供的技术方案， UE漫游到的漫游地运营商的 3GPP 接入网实体从核心网设备获取 WLAN的标识以及该 WLAN对应的优先级信 息， 并按照 WLAN的优先级信息向用户设备下发该 WLAN的标识，使得用户 设备在向 WLAN进行业务转移时，可以获知可以按照 WLAN的优先级接入到 WLAN中。 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要 使用的附图作简单地介绍，显而易见地， 下面描述中的附图仅仅是本发明的一 些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还 可以根据这些附图获得其他的附图。
图 1是本发明实施例公开的一种标识交互方法的 呈示意图；
图 2是本发明实施例公开的另一种标识交互方法的流程示意图；
图 3是本发明实施例公开的又一种标识交互方法的流程示意图；
图 4是本发明实施例公开的又一种标识交互方法的流程示意图；
图 5是本发明实施例公开的又一种标识交互方法的流程示意图； 图 6是本发明实施例公开的又一种标识交互方法的流程示意图； 图 7是本发明实施例公开的一种 3GPP接入网实体的结构示意图；
图 8是本发明实施例公开的另一种 3GPP接入网实体的结构示意图； 图 9是本发明实施例公开的一种核心网设备的结构示意图；
图 10是本发明实施例公开的另一种核心网设备的结构示意图。 具体实施方式
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， 所描述的实施例仅仅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。
本发明提供了一种标识交互方法及设备，可以使处于漫游状态下的用户设 备选择用户设备的归属地运营商允许用户设备接入的无线局域网，从而避免了 UE可能优先接入到归属地运营商和 /或漫游地运营商所不希望接入到的 WLAN 中。 本发明中的 3GPP接入网实体可以是演进型基站 /移动通信系统， 也可以是 演进型基站 /移动通信系统和单一无线控制器 (Single Radio Controller, SRC)的 组合，本发明实施例不做限定。如果用户设备的网絡制式为移动通信系统网絡， 单一无线控制器与移动管理实体之间的地面接口是长期演进网絡制式的 Si n , 单一无线控制器与用户设备之间的空中接口是 Uu口。 单一无线控制器和演进 型基站 /移动通信系统之间可以通信， 当本发明中的 3GPP接入网实体是演进型 基站 /移动通信系统和单一无线控制器的组合时， 对于下行消息， 单一无线控 制器可以从上一个节点，如核心网设备中的移动管理实体或服务网关等，接收 消息后转发给演进型基站 /移动通信系统， 对于上行消息， 演进型基站 /移动通 信系统可以将从用户设备接收到的消息转发给单一无线控制器。以下的实施例 以长期演进 LTE网絡制式分别进行详细说明。
需要说明的是， 本发明实施例中的 3GPP接入网实体为用户设备所在漫游 地的接入网实体， 核心网设备 (例如 MME ( Mobility Management Entity, 移动 管理实体), 或者 O AM ( Operation, Administration and Maintenance, 操作、 管 理和维护）系统）为用户设备所在漫游地的核心网设备。 下文所述的核心网设 备的动作均可以由 MME来执行。
需要说明的是， 漫游地的核心网设备可以通过 Sa6口从用户设备的归属地 运营商的 HSS ( Home Subscriber Server, 归属用户服务器）获取归属地运营商 的策略信息， 包括本发明中漫游地核心网设备配置的无线局域网的优先级信 息， 或者， 本发明中， 归属地运营商可以将策略信息通知漫游地运营商， 再由 漫游地运营商预先配置在漫游地核心网设备中。
请参阅图 1, 图 1是本发明实施例公开的一种标识交互方法的流程示意图。 如图 1所示， 该方法可以包括以下步骤：
S101、 3GPP接入网实体接收核心网设备发送的归属地运营商允许用户设 备接入的无线局域网标识以及所述无线局域网的优先级信息。
本发明实施例中， 无线局域网的标识可以是 SSID ( Service Set Identifier, 月良务集标识），也可以是 BSSID ( Basic Service Set Identifier,基本月良务集标识）， 还可以是 ESSID ( Extended Service Set Identifier, 扩展服务集标识）， 或者是 HESSID ( Homogeneous Extended Service Set Identifier, 单一扩 良务集标识）， 本发明实施例不^:限定。
本发明实施例中，无线局域网的标识是用户设备的归属 营商允许用户 设备接入的无线局域网的标识， 和 /或用户设备的漫游地运营商允许用户设备 接入的无线局域网的标识。
作为一种可选的实施方式，所述无线局域网的标识以及无线局域网的优先 级信息可以承载在核心网设备向 3GPP接入网实体发送的初始上下文建立请求 中优先级信息。本发明实施例中， 无线局域网的标识以及无线局域网的优先级 信息可以独立存在于初始上下文建立请求中，也可以存在于初始上下文建立请 求的切换受限列表 ( Handover Restriction List, HRL) (如表 1所示） 中， 本发 明实施例不做限定。 或者， 优先级信息还可以是排序信息。 3GPP接入网实体 接收到的是允许用户接入的 WLAN标识列表，其中包括用户设备的归属地运营 商允许用户设备接入的无线局域网的标识和 /或漫游地运营商允许用户设备接 入的无线局域网的标识， 并且排在越靠前的 WLAN的优先级越高， 例如 WLAN 标识列表包括 WLAN A, WLAN B, WLAN C, 其中 WLAN A和 WLAN B 是 归属地运营商允许用户设备接入的 WLAN, WLAN C是漫游地运营商允许用户 设备接入的 WLAN, 则 WLAN A的优先级高于 WLAN B , WLAN Β的优先级高 于 WLAN C。 UE在接入到 WLAN中时， 可以选 优先级最高的 WLAN。
表 1是本发明实施例公开的一种切换受限列表， 表 1中的 WLAN Priority Indicator (无线局域网优先级信息）， 以下简称 WPI, 即新增的优先级信息， 该 优先级信息表示用户设备的归属地运营商允许该用户设备接入的无线局域网 相对于漫游地运营商允许该用户设备接入的无线局域网的优先级配置，即优先 级信息可以表示优先级低， 也可以表示优先级高， 例如用 0表示归属地运营商 允许该用户设备接入的无线局域网的优先级低， 用 1表示归属地运营商允许该 用户设备接入的无线局域网的优先级高， 或只要该优先级信息存在， 即表示用 户设备的归属地运营商允许该用户设备接入的无线局域网相对于漫游地运营 商允许该用户设备接入的无线局域网的优先级高，该优先级信息的名字不做限 定。
S102、 3GPP接入网实体根据无线局域网的优先级信息向用户设备发送无 线局域网的标识。
本发明实施例中， 3GPP接入网实体根据上述 WPI优先级信息向用户设备 发送用于业务转移的无线局域网标识。例如，如果所述优先级信息标识归属地 运营商允许用户接入的无线局域网优先级高， 则 3GPP接入网实体只选择归属 地运营商允许用户设备接入的无线局域网标识下发给 UE, 或者， 将这些无线 局域网标识和漫游地允许用户接入的无线局域网标识一起下发给 UE, 但指示 UE该 UE所属运营商允许接入的无线局域网的优先级高。 本发明实施例中， 3GPP接入网实体可以根据核心网设备下发的信息选择无线局域网下发给 UE 用于业务转移， 使得用户设备可以优先接入归属运营商允许接入的 WLAN, 避免了归属运营商和漫游地运营商的策略冲突问题。 表 1切换受限列表
IE/Group Presence Range IE type and
Semantics descr¾ tion Name reference
PLMN Identify
9.2.4
HPLMN M
WLAN Priority
Indicator
>allowed
WLAN
Identifiers
Equivalent 0...<maxn Allowed PLMNs in addition to PLMN oofEPLM Serving PLMN. This list
Ns> corresponds to the list of
"equivalent PLMNs list" as defined in TS 24.301 [4]
>allowed
WLAN SSIDs 本发明实施例中， 3GPP接入网实体接收核心网设备发送的无线局域网的 标识以及这些无线局域网的优先级信息，使得 3GPP接入网实体可以根据无线 局域网的优先级信息向用户设备发送用于业务转移的无线局域网的标识。
请参阅图 2, 图 2是本发明实施例公开的另一种标识交互方法的流程示意 图。 如图 2所示， 该方法可以包括以下步骤：
5201、 3GPP接入网实体接收用户设备发送的服务请求或附着请求。
5202、 3GPP接入网实体向核心网设备发送服务请求或附着请求。
本发明实施例中， 3GPP接入网实体向核心网设备发送服务请求或附着请 求， 以使核心网设备根据服务请求或附着请求向 3GPP接入网实体发送无线局 域网的标识以及这些无线局域网的优先级信息。
本发明实施例中， 若 3GPP接入网实体向核心网设备发送服务请求， 则核 心网设备接收到服务请求后， 向 3GPP接入网实体发送无线局域网的标识以及 无线局域网的优先级信息； 若 3GPP接入网实体向核心网设备发送附着请求， 则核心网设备接收到 P付着请求后，核心网设备通过服务网关向数据网关发送创 建会话请求，之后，核心网设备接收数据网关通 良务网关发送的创建会话响 应， 核心网设备接收到来自数据网关的创建会话响应后向 3GPP接入网实体发 送无线局域网的标识以及无线局域网的优先级信息。
5203、 3GPP接入网实体接收核心网设备发送的无线局域网的标识以及无 线局域网的优先级信息。
本发明实施例中， 无线局域网的标识可以是 SSID, 也可以是 BSSID, 还可 以是 ESSID, 或者 HESSID, 本发明实施例不^:限定。
本发明实施例中，无线局域网标识以及这些无线局域网的优先级信息的实 现方法如表 1所示， 或者优先级信息还可以是排序信息， 即 3GPP接入网实体接 收到的是允许用户接入的 WLAN标识列表，其中包括用户设备的归属地运营商 允许用户设备接入的无线局域网的标识和 /或漫游地运营商允许用户设备接入 的无线局域网的标识， 并且排在越靠前的 WLAN的优先级越高， 例如 WLAN 标识列表包括 WLANA, WLAN B, WLAN C, 其中 WLAN A和 WLAN B 是 归属地运营商允许用户设备接入的 WLAN, WLAN C是漫游地运营商允许用户 设备接入的 WLAN, 则 WLAN A的优先级高于 WLAN B , WLAN B的优先级高 于 WLAN C。
S204、 3GPP接入网实体根据无线局域网的优先级信息向用户设备发送用 于该用户设备进行业务转移的无线局域网的标识。
本实施例中， 如果优先级信息是如表 1所示的 WPI, 贝 ij 3GPP接入网实^ ^艮 据该信息向用户设备发送无线局域网的标识， 例如 WPI标识归属地运营商允许 用户设备接入的 WLAN优先级高， 则 3GPP接入网实体优先只下发归属地运营 商允许用户设备接入的 WLAN,或者同时下发归属地运营商允许用户设备接入 的 WLAN和漫游地运营商允许用户设备接入的 WLAN,但指示归属地运营商允 许接入的 WLAN的优先级高，例如将归属地运营商允许用户设备接入的 WLAN 排在前面。
本发明实施例中， 3GPP接入网实体将来自用户设备的服务请求或附着请 求发送至核心网设备，以使核心网 i殳备向 3GPP接入网实体发送无线局域网的 标识以及无线局域网的优先级信息， 3GPP接入网实体接收核心网设备发送的 无线局域网的标识以及无线局域网的优先级信息，使得 3GPP接入网实体根据 无线局域网的优先级信息向用户设备发送用于业务转移的无线局域网的标识， 从而使得 UE可以按照接收到的无线局域网标识的先后 （表明了优先级）， 将 业务转移到相应的 WLAN中， 由于该无线局域网的优先级由漫游地运营商的 核心网设备统一配置或发送，可以避免 UE优先接入到归属地运营商或漫游地 运营商所不希望接入到的 WLAN中。
请参阅图 3, 图 3是本发明实施例公开的又一种标识交互方法的流程示意 图。 如图 3所示， 该方法可以包括以下步骤：
5301、 核心网设备接收用于触发核心网设备向 3GPP接入网实体发送无线 局域网的标识以及无线局域网的优先级信息的消息。
本实施例中， 核心网设备接收用于触发核心网设备向 3GPP接入网实体发 送无线局域网的标识以及无线局域网的优先级信息的消息可以是核心网设备 接收 3GPP接入网实体发送的来自用户设备的服务请求， 或者是核心网设备接 收数据网关发送的创建会话响应。
5302、 核心网设备响应上述消息， 并向 3GPP接入网实体发送无线局域网 的标识以及无线局域网的优先级信息。
本发明实施例中， 核心网设备响应消息， 并向 3GPP接入网实体发送无线 局域网的标识以及无线局域网的优先级信息。无线局域网的标识以及无线局域 网的优先级信息可以是包含在 HRL( Handover Restriction List ,切换受限列表）， 如表 1所示，该 HRL包含在 3GPP接入网实体接收到的核心网设备发送的初始上 下文建立请求中，也可以独立于 HRL并包含在该初始上下文建立请求中， 本发 明实施例不故限定。
本发明实施例中，核心网设备接收到用于触发核心网设备向 3GPP接入网 实体发送无线局域网的标识以及无线局域网的优先级信息的消息后，响应该消 息并向 3GPP接入网实体发送无线局域网的标识以及无线局域网的优先级信 息， 以使 3GPP接入网实体可以根据接收到的信息向用户设备发送用于业务转 移的无线局域网的标识。 请参阅图 4, 图 4是本发明实施例公开的又一种标识交互方法的流程示意 图。 如图 4所示， 该方法可以包括以下步骤：
5401、核心网设备接收 3GPP接入网实体发送的来自用户设备的附着请求。
5402、 核心网设备根据附着请求向数据网关发送创建会话请求。
本发明实施例中，核心网设备可以通过服务网关向数据网关发送创建^舌 请求。
5403、 核心网设备接收数据网关发送的创建会话响应。
本发明实施例中，核心网设备可以通过服务网关接收数据网关发送的创建 会话响应， 创建会话响应用于触发核心网设备向 3GPP接入网实体发送无线局 域网的标识以及无线局域网的优先级信息。
5404、 核心网设备响应创建 ^舌响应， 并向 3GPP接入网实体发送无线局 域网的标识以及无线局域网的优先级信息。
实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。 请参阅图 5, 图 5是本发明实施例公开的又一种标识交互方法的流程示意 图。 如图 5所示， 该标识交互方法可以包括以下步骤：
S501、 用户设备向 3GPP接入网实体发送月良务请求。
5502、 3GPP接入网实体接收用户设备发送的服务请求。
5503、 3GPP接入网实体向核心网设备发送服务请求。
5504、 核心网设备接收 3GPP接入网实体发送的服务请求。
5505、 核心网设备向 3GPP接入网实体发送初始上下文建立请求。
本发明实施例中，初始上下文建立请求包含无线局域网的标识以及无线局 域网的优先级信息，无线局域网的标识以及无线局域网的优先级信息可以独立 的存在于初始上下文建立请求中，也可以存在于初始上下文建立请求的切换受 限列表（如表 1所示） 中， 本发明实施例不做限定。
5506、 3GPP接入网实体接收核心网设备发送的无线局域网的标识以及无 线局域网的优先级信息。
5507、 3GPP接入网实体根据无线局域网的优先级信息向用户设备发送无 线局域网的标识。
5508、 用户设备接收 3GPP接入网实体发送的目标无线局域网的标识。 实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。
请参阅图 6, 图 6是本发明实施例公开的又一种标识交互方法的流程示意 图。 如图 6所示， 该标识交互方法可以包括以下步骤：
S601、 用户设备向 3GPP接入网实体发送附着请求。
5602、 3GPP接入网实体接收用户设备发送的附着请求。
5603、 3GPP接入网实体向核心网设备发送附着请求。
5604、 核心网设备接收 3GPP接入网实体发送的附着请求。
5605、 核心网设备向服务网关发送创建会话请求。
5606、 服务网关向数据网关发送创建^舌请求。
5607、 数据网关向服务网关发送创建^舌响应。
5608、 服务网关向核心网设备发送创建会话响应。
5609、 核心网设备接收创建会话响应。
5610、 核心网设备向 3GPP接入网实体发送初始上下文建立请求。
本发明实施例中，初始上下文建立请求包含无线局域网的标识以及无线局 域网的优先级信息，无线局域网的标识以及无线局域网的优先级信息可以独立 的存在于初始上下文建立请求中，也可以存在于初始上下文建立请求的切换受 限列表（如表 1所示） 中， 本发明实施例不做限定。
5611、 3GPP接入网实体接收核心网设备发送的无线局域网的标识以及无 线局域网的优先级信息。
5612、 3GPP接入网实体根据无线局域网的优先级信息向用户设备发送无 线局域网的标识。
5613、 用户设备接收 3GPP接入网实体发送的目标无线局域网的优先级信 实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。
请参阅图 7, 图 7是本发明实施例公开的一种 3GPP接入网实体的结构示意 图。 如图 7所示， 该 3GPP接入网实体 700可以包括接收单元 701以及发送单元 702:
接收单元 701用于接收核心网设备发送的无线局域网的标识以及无线局域 网的优先级信息。
本发明实施例中，无线局域网的标识是用户设备的归属 营商允许用户 设备接入的无线局域网的标识和 /或漫游地运营商允许用户设备接入的无线局 域网的标识， 3GPP接入网实体 700是用户设备所处的漫游地的 3GPP接入网实 体。
本发明实施例中， 无线局域网的标识可以是 SSID, 也可以是 BSSID, 还可 以是 ESSID, 或者 HESSID, 本发明实施例不^:限定。
本发明实施例中，无线局域网的优先级信息用于表示用户设备的归属 营商允许述用户设备接入的无线局域网的优先级相对于漫游地运营商允许用 户设备接入的无线局域网的优先级配置。
作为一种可选的实施方式， 接收单元 701接收核心网设备发送的无线局域 网的标识以及无线局域网的优先级信息可以是接收单元 701接收核心网设备发 送的初始上下文建立请求，初始上下文建立请求包括无线局域网的标识以及无 线局域网的优先级信息。本发明实施例中，无线局域网的标识以及无线局域网 的优先级信息可以独立的存在于初始上下文建立请求中，也可以存在于初始上 下文建立请求的切换受限列表（如表 1所示） 中， 本发明实施例不做限定。
发送单元 702根据无线局域网的优先级信息向用户设备发送无线局域网的 标识。
在另一个实施例中， 接收单元 701还用于接收用户设备发送的服务请求或 附着请求。
发送单元 702¾用于向核心网设备发送服务请求或附着请求。
本发明实施例中， 若发送单元 702向核心网设备发送服务请求， 则核心网设备 接收到服务请求后， 向 3GPP接入网实体 700发送无线局域网的标识以及无线局 域网的优先级信息； 若发送单元 702向核心网设备发送附着请求， 则核心网设 备接收到附着请求后， 核心网设备通过服务网关向数据网关发送创建会话请 求， 之后， 核心网设备接收数据网关通过服务网关发送的创建会话响应， 核心 网设备接收到来自数据网关的创建会话响应后向 3GPP接入网实体 700发送无 线局域网的标识以及无线局域网的优先级信息。
实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。
请参阅图 8, 图 8是本发明实施例公开的另一种 3GPP接入网实体的结构 示意图。如图 8所示，该 3GPP接入网实体 800包括存储器 801以及处理器 802, 存储器 801中存储一组程序代码，且处理器 802用于调用存储器 801中存储的 程序代码， 用于执行以下操作：
接收核心网设备发送的无线局域网的标识以及无线局域网的优先级信息， 无线局域网标识是用户设备的归属地运营商允许用户设备接入的无线局域网 标识和 /或漫游地运营商允许用户设备接入的无线局域网的标识， 3GPP接入网 实体 800是用户设备所处的漫游地的 3GPP接入网实体；
根据无线局域网的优先级信息向用户设备发送无线局域网的标识。
在一个实施例中， 处理器 802接收核心网设备发送的无线局域网的标识以 及无线局域网的优先级信息之前，处理器 802调用存储器 801中存储的程序代码 还执行以下操作：
接收用户设备发送的服务请求或附着请求；
向核心网设备发送服务请求或附着请求，以使核心网设备根据服务请求或 附着请求向 3GPP接入网实体发送无线局域网的标识以及无线局域网的优先级
Ί§息。
在一个实施例中， 处理器 802接收核心网设备发送的无线局域网的标识以 及无线局域网的优先级信息的方式具体为：
接收核心网设备发送的初始上下文建立请求，初始上下文建立请求包括无 线局域网的标识以及无线局域网的优先级信息。
实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局域网 标识和无线局域网优先级信息向用户设备发送 WLAN标识。
请参阅图 9, 图 9是本发明实施例公开的一种核心网设备的结构示意图。如 图 9所示， 该核心网设备 900包括接收单元 901以及发送单元 902:
接收单元 901用于接收用于触发核心网设备 900向 3GPP接入网实体发送无 线局域网的标识以及无线局域网的优先级信息的消息。
作为一种可选的实施方式， 接收单元 901接收用于触发核心网设备 900向 3GPP接入网实体发送无线局域网的标识以及无线局域网的优先级信息的消息 可以是接收单元 901接收 3GPP接入网实体发送的来自用户设备的服务请求。
本发明实施例中， 无线局域网的标识可以是 SSID, 也可以是 BSSID, 还可 以是 ESSID, 或者 HESSID, 本发明实施例不^:限定。
本发明实施例中，无线局域网的优先级信息用于表示用户设备的归属 营商允许述用户设备接入的无线局域网的优先级相对于漫游地运营商允许用 户设备接入的无线局域网的优先级配置。
作为另一种可选的实施方式， 接收单元 901接收用于触发核心网设备 900 向 3GPP接入网实体发送无线局域网的标识以及无线局域网的优先级信息的消 息可以是接收单元 901接收数据网关发送的创建^舌响应。
本发明实施例中，无线局域网是用户设备的归属 营商允许用户设备接 入的无线局域网， 3GPP接入网实体是用户设备所处的漫游地的 3GPP接入网实 体。
发送单元 902用于响应消息， 并向 3GPP接入网实体发送无线局域网的标识 以及无线局域网的优先级信息。
在另一个实施例中， 若接收单元 901接收到的消息为创建会话响应， 则接 收单元 901还用于接收 3GPP接入网实体发送的来自用户设备的附着请求。
发送单元 902¾用于根据附着请求向数据网关发送创建会话请求。
本发明实施例中， 创建会话请求用于使数据网关向核心网设备 900发送创 建会话响应。
实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。 请参阅图 10, 图 10是本发明实施例公开的另一种核心网设备的结构示意 图。 如图 10所示， 该核心网设备 1000包括存储器 1001以及处理器 1002, 存储器 码， 用于执行以下操作：
接收用于触发核心网设备 1000向 3GPP接入网实体发送无线局域网的标识 以及无线局域网的优先级信息的消息，无线局域网标识是用户设备的归属地运 营商允许用户设备接入的无线局域网标识和 /或漫游地运营商允许用户设备接 入的无线局域网的标识， 3GPP接入网实体是用户设备所处的漫游地的 3GPP接 人网实体； 响应消息， 并向 3GPP接入网实体发送无线局域网的标识以及无线局域网 的优先级信息， 以使 3GPP接入网实体向用户设备发送用于供用户设备选择的 目标无线局域网的标识。
本发明实施例中， 无线局域网的标识可以是 SSID, 也可以是 BSSID, 还可 以是 ESSID, 或者 HESSID, 本发明实施例不^:限定。
本发明实施例中，无线局域网的优先级信息用于表示用户设备的归属 营商允许述用户设备接入的无线局域网相对于漫游地运营商允许用户设备接 入的无线局域网的优先级配置。 在一个实施例中， 处理器 1002接收用于触发核心网设备 1000向 3GPP接入 网实体发送无线局域网的标识以及无线局域网的优先级信息的消息的方式具 体为：
接收 3GPP接入网实体发送的来自用户设备的服务请求； 或
接收数据网关发送的创建会话响应。
在一个实施例中，处理器 1002接收数据网关发送的创建会话响应之前，处 接收 3GPP接入网实体发送的来自用户设备的附着请求；
根据附着请求向数据网关发送创建^舌请求，以使数据网关向核心网设备 发送创建会话响应。
实施本发明实施例可以使漫游地的接入网实体可以根据接收到的无线局 域网标识和无线局域网优先级信息向用户设备发送 WLAN标识。。
需要说明的是， 在上述实施例中， 对各个实施例的描述都各有侧重， 某个 实施例中没有详细描述的部分， 可以参见其他实施例的相关描述。 其次， 本领 域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及 的动作和模块并不一定是本发明所必须的。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、 合并和删 减。
本发明实施例路由器中的单元可以根据实际需要进行合并、 划分和删减， 且可以通过通用集成电路， 例如 CPU ( Central Processing Unit, 中央处理器）， 或通过 ASIC ( Application Specific Integrated Circuit, 专用集成电路 )来实现。 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程， 是可以通过计算机程序来消息相关的硬件来完成，所述的程序可存储于计算机 可读取存储介廣中， 该程序在执行时， 可包括如上述各方法的实施例的流程。 其中，所述的存储介廣可为磁碟、光盘、只读存储记忆体（Read-Only Memory, ROM)或随机存储记忆体 ( Random Access Memory, RAM )等。
以上对本发明实施例所提供的一种标识交互方法及设备进行了详细介绍， 本文中应用了具体实例对本发明的原理及实施方式进行了阐述，以上实施例的 说明只是用于帮助理解本发明的方法及其核心思想； 同时，对于本领域的一般 技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种标识交互方法， 其特征在于， 包括：
3GPP接入网实体接收漫游地运营商的核心网设备发送的无线局域网的标 识以及所述无线局域网的优先级信息，所述无线局域网的标识是用户设备的归 属地运营商和 /或漫游地运营商允许所述用户设备接入的无线局域网的标识， 所述 3GPP接入网实体是所述用户设备所处的漫游地的 3GPP接入网实体；
所述 3GPP接入网实体根据所述无线局域网的优先级信息向所述用户设备 发送所述无线局域网的标识。
2、 根据权利要求 1所述的方法， 其特征在于， 所述无线局域网的优先级信 息用于表示所述用户设备的归属地运营商允许所述用户设备接入的无线局域 网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的优先级高； 或者，所述无线局域网的优先级信息表示所述用户设备的归属地运营商允许所 述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设备接 入的无线局域网的优先级低。
3、 根据权利要求 1或 2所述的方法， 其特 ¾于， 所述 3GPP接入网实 艮 据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识包括： 所述 3GPP接入网实体根据所述无线局域网的优先级信息确定所述无线局 域网的优先级；
所述 3GPP接入网实体按照所述无线局域网的优先级向所述用户设备发送
4、 根据权利要求 1~3任一项所述的方法， 其特征在于， 所述 3GPP接入网 实体接收所述核心网设备发送的无线局域网的标识以及所述无线局域网的优 先级信息之前， 所述方法还包括：
所述 3GPP接入网实体接收用户设备发送的服务请求或附着请求； 所述 3GPP接入网实体向所述核心网设备发送所述服务请求或所述附着请 求， 以使所述核心网设备根据所述服务请求或所述附着请求向所述 3GPP接入 网实体发送无线局域网的标识以及所述无线局域网的优先级信息。
5、 根据权利要求 1~4任一项所述的方法， 其特征在于， 所述 3GPP接入网 实体接收所述核心网设备发送的无线局域网的标识以及所述无线局域网的优 先级信息包括：
所述 3GPP接入网实体接收所述核心网设备发送的初始上下文建立请求， 所述初始上下文建立请求包括无线局域网的标识以及所述无线局域网的优先 级信息。
6、 一种标识交互方法， 其特征在于， 包括：
漫游地运营商的核心网设备接收用于触发所述核心网设备向 3GPP接入网 实体发送无线局域网的标识以及所述无线局域网的优先级信息的消息，所述无 线局域网的标识是用户设备的归属地运营商和 /或漫游地运营商允许所述用户 设备接入的无线局域网的标识， 所述 3GPP接入网实体是所述用户设备所处的 漫游地的 3GPP接入网实体；
所述核心网设备响应所述消息， 并向所述 3GPP接入网实体发送所述无线 局域网的标识以及所述无线局域网的优先级信息， 以使所述 3GPP接入网实体 根据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识。
7、 根据权利要求 6所述的方法， 其特征在于， 所述无线局域网的优先级信 息用于表示所述用户设备的归属地运营商允许所述用户设备接入的无线局域 网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的优先级高； 或者，所述无线局域网的优先级信息表示所述用户设备的归属地运营商允许所 述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设备接 入的无线局域网的优先级低。
8、 根据权利要求 6或 7所述的方法， 其特征在于， 所述用于触发所述核心 网设备向所述 3GPP接入网实体发送所述无线局域网的标识以及所述无线局域 网的优先级信息的消息， 包括： 所述 3GPP接入网实体发送的来自用户设备的服务请求； 或
数据网关发送的创建会话响应。
9、 根据权利要求 8所述的方法， 其特征在于， 所述用于触发所述核心网设 备向所述 3GPP接入网实体发送所述无线局域网的标识以及所述无线局域网的 优先级信息的消息为所述数据网关发送的创建会话响应， 所述方法还包括： 所述核心网设备接收所述 3GPP接入网实体发送的来自用户设备的附着请 求；
所述核心网设备根据所述附着请求向所述数据网关发送创建会话请求，以 使所述数据网关向所述核心网设备发送所述创建会话响应。
10、 一种 3GPP接入网实体， 其特 ¾于， 所述 3GPP接入网实体是用户设 备所处的漫游地的 3GPP接入网实体， 包括：
接收单元，用于接收漫游地运营商的核心网设备发送的无线局域网的标识 以及所述无线局域网的优先级信息，所述无线局域网的标识是所述用户设备的 归属地运营商和 /或漫游地运营商允许所述用户设备接入的无线局域网的标 识；
发送单元，用于根据所述无线局域网的优先级信息向所述用户设备发送无 线局域网的标识。
11、 根据权利要求 10所述的方法， 其特征在于， 所述无线局域网的优先级 信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的无线局 域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的优先级 高； 或者，
或者，所述无线局域网的优先级信息表示所述用户设备的归属地运营商允 许所述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设 备接入的无线局域网的优先级低。
12、 根据权利要求 10或 11所述的方法， 其特征在于， 所述发送单元用于根 据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识， 包 括： 局域网的优先级，并按照所述无线局域网的优先级向所述用户设备发送所述无 线局域网的优先级对应的所述无线局域网的标识。
13、 根据权利要求 10~12任一项所述的 3GPP接入网实体， 其特征在于， 所 述接收单元， 还用于接收所述用户设备发送的服务请求或附着请求；
所述发送单元，还用于向所述核心网设备发送所述服务请求或所述附着请 求， 以使所述核心网设备根据所述服务请求或所述附着请求向所述 3GPP接入 网实体发送所述无线局域网的标识以及所述无线局域网的优先级信息。
14、 根据权利要求 10~13任一项所述的 3GPP接入网实体， 其特征在于， 所 述接收单元接收核心网设备发送的无线局域网的标识以及所述无线局域网的 优先级信息的方式具体为：
所述 3GPP接入网实体接收所述核心网设备发送的初始上下文建立请求， 所述初始上下文建立请求包括所述无线局域网的标识以及所述无线局域网的 优先级信息。
15、 一种核心网设备， 其特征在于， 所述核心网设备为用户设备漫游到的 漫游地运营商的核心网设备， 包括：
接收单元，用于接收用于触发所述核心网设备向所述用户设备所处的漫游 地的 3GPP接入网实体发送无线局域网的标识以及所述无线局域网的优先级信 息的消息，所述无线局域网的标识是用户设备的归属地运营商允许所述用户设 备接入的无线局域网的标识；
发送单元， 用于响应所述消息， 并向所述 3GPP接入网实体发送所述无线 局域网的标识以及所述无线局域网的优先级信息， 以使所述 3GPP接入网实体 根据所述无线局域网的优先级信息向所述用户设备发送无线局域网的标识。
16、 根据权利要求 15所述的方法， 其特征在于， 所述无线局域网的优先级 信息用于表示所述用户设备的归属地运营商允许所述用户设备接入的无线局 域网的优先级比漫游地运营商允许所述用户设备接入的无线局域网的优先级 高； 或者，
所述无线局域网的优先级信息表示所述用户设备的归属地运营商允许所 述用户设备接入的无线局域网的优先级比漫游地运营商允许所述用户设备接 入的无线局域网的优先级低。
17、 根据权利要求 15或 16所述的核心网设备， 其特征在于， 所述用于触发 所述核心网设备向所述 3GPP接入网实体发送所述无线局域网的标识以及所述 无线局域网的优先级信息的消息， 包括：
所述 3GPP接入网实体发送的来自用户设备的服务请求； 或
数据网关发送的创建会话响应。
18、 根据权利要求 17所述的核心网设备， 其特征在于， 所述用于触发所述 核心网设备向所述 3GPP接入网实体发送所述无线局域网的标识以及所述无线 局域网的优先级信息的消息为所述数据网关发送的创建会话响应；
所述接收单元， 还用于接收所述 3GPP接入网实体发送的来自所述用户设 备的附着请求；
所述发送单元，还用于根据所述附着请求向所述数据网关发送创建会话请 求， 以使所述数据网关向所述核心网设备发送所述创建会话响应。
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