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WO2011003356A1 - Procédé et appareil permettant d'acquérir des informations concernant une fonction de transmission de signalisation - Google Patents

Procédé et appareil permettant d'acquérir des informations concernant une fonction de transmission de signalisation Download PDF

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Publication number
WO2011003356A1
WO2011003356A1 PCT/CN2010/075063 CN2010075063W WO2011003356A1 WO 2011003356 A1 WO2011003356 A1 WO 2011003356A1 CN 2010075063 W CN2010075063 W CN 2010075063W WO 2011003356 A1 WO2011003356 A1 WO 2011003356A1
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WIPO (PCT)
Prior art keywords
sff
mobile terminal
information
network
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2010/075063
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English (en)
Chinese (zh)
Inventor
熊志伟
倪慧
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2011003356A1 publication Critical patent/WO2011003356A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for acquiring signaling forwarding function entity information.
  • microwave access global interoperability access World
  • FIG. 1 shows the WiMAX network architecture.
  • the Access Service Network (ASN) is provided for WiMAX users.
  • a set of functional entities for wireless access including a base station (BS) and an access service network gateway (ASN-GW).
  • a Connectivity Service Network (CSN) is an IP connection for WiMAX users and A collection of functional entities of a service, including authentication, authorization, and accounting servers.
  • a mobile terminal (MS) is a mobile device that provides network access for WiMAX users.
  • WiFi Wireless Fidelity
  • BSS Basic Service Set
  • Access Point Access Point
  • AP Access Point
  • the WiFi-WiMAX interworking network In order to improve the user experience, it is necessary to realize the interworking between the WiMAX network and the WiFi network.
  • the WiFi-WiMAX interworking network according to the radio conditions that the mobile terminal can support, it is divided into single radio frequency single radio intercommunication and dual radio frequency dual radio interworking.
  • the access authentication needs to be re-established in the new network, usually The access authentication has a long delay.
  • an entity may be required to help the mobile terminal perform pre-authentication before the air interface is switched. After the pre-authentication is completed, the mobile terminal switches the air interface to the new network. Perform re-entry operations without having to perform access authentication.
  • the entity that assists the mobile terminal in pre-authentication is called the SFF (Signal Forwarding Function) entity.
  • the prior art provides a method for obtaining SFF information, where the mobile terminal obtains the ID of the BS, according to
  • the Domain Name Service (DNS) of the BS sends a Domain Name Service (DNS) query request message to the DNS.
  • DNS Domain Name Service
  • the server and the DNS server find the SFF according to the mapping relationship between the pre-configured BS and the SFF, and send the SFF information to the mobile terminal.
  • the single-issue and single-receiving mobile terminal acquires the ID of the neighboring base station by performing information interaction with the existing connected network.
  • the information is exchanged with the existing connected network to obtain the ID of the surrounding base station, and then the SFF is queried from the DNS server, so that the mobile terminal needs to perform multiple times with the network before switching.
  • the interaction extends the delay of the handover of the mobile terminal and reduces the network processing efficiency.
  • the embodiments of the present invention provide a method and a device for acquiring signaling forwarding function entity information, which enable a mobile terminal to learn a signaling forwarding function entity that helps a mobile terminal perform pre-authentication.
  • a method for obtaining SFF information of a signaling forwarding function entity includes:
  • the signaling forwarding function entity selects the network element to obtain information for determining the SFF from the network currently accessed by the mobile terminal;
  • a method for obtaining SFF information of a signaling forwarding function entity includes:
  • the signaling forwarding function entity selects the network element to receive the message that triggers the subscription SFF sent by the network currently accessed by the mobile terminal, obtains the information for determining the SFF, and determines to serve the mobile terminal according to the information used to determine the SFF. SFF, the determined information of the SFF is sent to the mobile terminal.
  • a method for obtaining signaling forwarding function entity information includes:
  • the authentication, authorization, and accounting server After receiving the message requesting authentication of the mobile terminal, the authentication, authorization, and accounting server determines the SFF serving as the mobile terminal, and transmits the determined information of the SFF to the mobile terminal.
  • a signaling forwarding function entity selecting device includes:
  • An obtaining unit configured to obtain information for determining an SFF from a network currently accessed by the mobile terminal, and a determining unit, configured to determine, according to the information for determining the SFF, an SFF serving the mobile terminal;
  • a sending unit configured to send the determined information of the SFF to the mobile terminal.
  • a signaling forwarding function entity selecting device includes: a receiving unit, configured to receive a message that triggers a subscription SFF sent by a network currently accessed by the mobile terminal;
  • An obtaining unit configured to obtain, after the receiving unit receives the message triggering the subscription of the SFF, information for determining the SFF;
  • a determining unit configured to determine, according to the information used to determine the SFF, an SFF serving the mobile terminal
  • a sending unit configured to send information about the SFF determined by the determining unit to the mobile terminal.
  • a signaling forwarding function entity selecting device includes:
  • a receiving unit configured to receive a message requesting authentication of the mobile terminal
  • a determining unit configured to determine, after receiving the message requesting authentication of the mobile terminal, an SFF serving as the mobile terminal;
  • a sending unit configured to send information about the SFF determined by the determining unit to the mobile terminal.
  • the signaling forwarding function entity selects the network element to directly obtain the information for determining the SFF from the network currently accessed by the mobile terminal, and does not require the mobile terminal to report the BS information, that is, the mobile terminal does not need to perform information interaction with the existing network.
  • the BS information is obtained, the delay of the handover of the mobile terminal is shortened, and the network processing efficiency is improved.
  • the signaling forwarding function entity selects the network element to notify the mobile terminal of the SFF for the mobile terminal after receiving the message of triggering the subscription SFF sent by the network currently accessed by the mobile terminal, without requesting the mobile terminal. , so that the mobile terminal can know the SFF serving itself in time.
  • the authentication, authorization, and accounting server notifies the mobile terminal of the SFF of the mobile terminal in the authentication phase of the mobile terminal, and does not require the mobile terminal to report the BS information, that is, the mobile terminal does not need to perform information with the existing network.
  • FIG. 1 is a block diagram of a WiMAX network
  • FIG. 2 is a structural diagram of a WiFi-WiMAX interworking network
  • FIG. 3 is a flowchart of a method for acquiring signaling forwarding function entity information according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a method for acquiring signaling forwarding function entity information according to Embodiment 2 of the present invention
  • FIG. FIG. 6 is a flowchart of a method for obtaining signaling forwarding function entity information according to Embodiment 4 of the present invention
  • FIG. 7 is a flowchart of a method for obtaining signaling forwarding function entity information according to Embodiment 4 of the present invention
  • FIG. 8 is a flowchart of a method for obtaining signaling forwarding function entity information according to Embodiment 6 of the present invention
  • FIG. 9 is a schematic diagram of acquiring signaling forwarding function entity information according to Embodiment 7 of the present invention
  • FIG. 10 is a structural diagram of an apparatus for acquiring signaling forwarding function entity information according to Embodiment 8 of the present invention.
  • FIG. 11 is a structural diagram of an apparatus for acquiring signaling forwarding function entity information provided in Embodiment 9 of the present invention.
  • FIG. 12 is a structural diagram of an apparatus for acquiring signaling forwarding function entity information according to Embodiment 10 of the present invention.
  • WiMAX network and non-WiMAX network need to communicate with each other, for example, WiMAX network and WiFi network intercommunication, wherein the WiFi-WiMAX interworking network structure is shown in Figure 2.
  • WiFi-WiMAX interworking network structure is shown in Figure 2.
  • WiMAX SFF WiMAX Signal Forwarding Function
  • the WiFi Signal Forwarding Function (WiFi SFF) assists the mobile terminal to perform pre-authentication and other handover preparation work through the WiMAX access network.
  • the embodiment of the present invention needs to notify the mobile terminal of the SFF serving the mobile terminal before the mobile terminal switches to the target network, so that the SFF helps the mobile terminal to perform handover preparation work such as pre-authentication. It should be noted that the embodiments of the present invention are not only applicable to the mobile terminal switching between the WiMAX network and the WiFi network, and the technical solutions provided by the embodiments of the present invention are applicable as long as the switching between different types of access networks is performed.
  • the embodiment of the present invention introduces the signaling forwarding function entity to select the network element.
  • the signaling forwarding entity selection network element may be an Access Network Discovery and Selection Function (ANDSF) server or an Access Network and Interworking entity Discovery Function (ANIDF).
  • ANDSF Access Network Discovery and Selection Function
  • ANIDF Access Network and Interworking entity Discovery Function
  • the server or the information server (IS) does not affect the implementation of the embodiment of the present invention.
  • the ANDSF server is mainly used for the discovery and selection of the access network between the heterogeneous networks.
  • the ANDSF server can provide two types of information to the terminal: mobility policy information and access network discovery information of the heterogeneous network handover, wherein the access network
  • the discovery information includes the type of network existing around the mobile terminal, the location of the mobile terminal, and the like.
  • the mobility policy information of the heterogeneous network handover includes the network that the mobile terminal can access, the capability of handover between networks, the priority of access, and the like.
  • the embodiment of the present invention is described by taking an ANDSF server as an example.
  • the function of the ANDSF server is extended, and the SFF of the mobile terminal to be switched is determined by the ANDSF server, and the information of the SFF is notified to the mobile terminal.
  • the mobile terminal uses the SFF to perform handover preparation work.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a first embodiment of the present invention provides a method for acquiring signaling forwarding function entity information, where the method includes:
  • the signaling forwarding function entity selects, after receiving the message sent by the network currently accessed by the mobile terminal, the triggering subscription SFF message, and acquiring information for determining the SFF.
  • the execution body of each step of the method is that the signaling forwarding function entity selects a network element, and the signaling forwarding function entity selects the network element to be located in the core network, which may be an ANDSF server or an ANIDF server or an IS.
  • the network where the mobile terminal is currently located sends a message triggering the subscription of the SFF to the signaling forwarding function entity to select the network element to be sent when some network events occur. For example, when the mobile terminal enters the active state from the idle state, the ASN GW detects that the mobile terminal enters the active state from the idle state, and selects the network element to send a message to the signaling forwarding function entity to notify the mobile terminal to enter the active state from the idle state, the message. Is a trigger subscription SFF; or, when the mobile terminal enters a new paging area, the network seeks The call location register selects the network element to send a message carrying the new location information of the mobile terminal to the signaling forwarding function entity, and the message belongs to the trigger subscription SFF. Before the switch to the target network is optimized, the switch preparation is performed through the currently connected network.
  • the signaling forwarding function entity selects the network element to receive the message of triggering the subscription SFF sent by the network where the mobile terminal is currently located when the predetermined network event occurs, and the mobile terminal is not required to request the mobile terminal.
  • the SFF notifies the mobile terminal to enable the mobile terminal to know the SFF serving itself in time.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a second embodiment of the present invention provides a method for acquiring signaling forwarding function entity information, where the method includes:
  • the signaling forwarding function entity selects the network element to obtain information for determining the SFF from the network currently accessed by the mobile terminal, where the information for determining the SFF includes: network location information of the mobile terminal or allowed to be used by the user. SFF information, where the user is a user on the mobile terminal.
  • the execution body of each step of the method is that the signaling forwarding function entity selects the network element, and the signaling forwarding function entity selects the network element to be located in the core network, and the signaling forwarding function entity selects the network element to be an ANDSF server or an ANIDF server.
  • the signaling forwarding function entity selects the network element to directly obtain the information for determining the SFF from the network where the mobile terminal is currently located, and does not need to report the BS information by the mobile terminal, that is, the mobile terminal does not need to perform information on the current network of the mobile terminal.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • a third embodiment of the present invention provides a method for acquiring signaling forwarding function entity information.
  • an ANDSF server works in a Push mode, and a network event triggers an ANDSF server to actively send SFF information to a mobile terminal.
  • the ANDSF server receives the trigger message sent by the access network (AN1) where the mobile terminal is currently located, and the trigger message is a message that triggers the subscription of the SFF, and the ANDSF server determines, according to the received trigger message, that the need is The mobile terminal sends SFF information, which The received trigger message carries: the new network location information of the mobile terminal.
  • the ANDSF server can work in the Push mode or the Pull mode.
  • the ANDSF server works in the Push mode, the ANDSF server pre-configures the trigger, and the trigger is used when receiving the message triggered by the A1 to subscribe to the SFF ( That is, when the trigger condition of the trigger is satisfied, the information of the SFF for the mobile terminal service is sent to the mobile terminal; when the ANDSF server works in the Pull mode, the ANDSF server receives the message requesting the SFF information sent by the mobile terminal and then the information of the SFF. Issued to the mobile terminal.
  • the ANDSF server works in Push mode.
  • the trigger message received in this step may not carry the network location information of the mobile terminal, for example, the trigger message is only a message carrying the SFF request indication, or the mobile terminal is notified to enter the active state from the idle state.
  • the ANDSF server requests the network location information of the mobile terminal from the mobile terminal, or requests the network location information of the mobile terminal from the network element in the AN1.
  • the predetermined network event in the step may be that the mobile terminal enters the active state from the idle state, and the ASN GW sends a message to the ANDSF server to notify the mobile terminal to enter the active state from the idle state, and the message belongs to the message triggering the subscription SFF.
  • the mobile terminal enters the active state from the idle state to the condition triggered by the trigger.
  • the predetermined network event may also be that the mobile terminal enters a new paging area.
  • the paging location register in the network sends a message carrying the new location information of the mobile terminal to the ANDSF server, the message belongs to the message triggering the subscription SFF, and the mobile The location update of the terminal is a condition triggered by the trigger.
  • the ANDSF server determines, according to the pre-stored correspondence between the network location information of the mobile terminal and the SFF, the SFF corresponding to the network location information of the mobile terminal, where the SFF is the SFF of the mobile terminal service.
  • the network location information of the mobile terminal may be location information of the mobile terminal in the current access network (AN1), location information of the mobile terminal in the access network (AN2) to be switched, and physical coordinates of the current location of the mobile terminal. At least one of them.
  • the ANDSF server sends the determined information of the SFF to the mobile terminal.
  • the SFF information includes the address of the SFF or the SFF domain name.
  • the ANDSF server can also send the network information around the mobile terminal to the mobile terminal, so that the mobile terminal can obtain the wireless signal when it is not aware of the location and surrounding wireless signals. Know the SFF and the surrounding network information for your own service.
  • the network location information of the mobile terminal corresponds to multiple SFFs in step 502
  • the current access technology of the mobile terminal, the network type to be switched by the mobile terminal, the service range of the SFF, and the network type supported by the SFF need to be considered.
  • information such as the load of the SFF, and selecting an SFF as the SFF of the mobile terminal service the information of the selected SFF is transmitted to the mobile terminal in step 503.
  • the SFF assists the mobile terminal to perform handover preparation work in cooperation with the network element in the AN2 network through the AN1 network.
  • the mobile terminal performs re-entry operation and establishes a connection with AN2.
  • the third embodiment of the present invention does not require the request of the mobile terminal, and determines the SFF served by the mobile terminal according to the network location information of the mobile terminal in the trigger message, and notifies the mobile terminal that the mobile terminal does not know the mobile terminal.
  • the SFF that can serve itself can be known in time; further, the mobile terminal can know the network information around itself when it does not know the wireless signal around itself.
  • the network event triggering the ANDSF server to actively send the SFF information to the mobile terminal may also include the following situations:
  • the subscription information of the user is changed, the authentication, authorization, and accounting server will use the changed SFF of the allowed user.
  • the information is sent to the ANDSF server.
  • the information change of the SFF that is allowed to be used by the user at this time is a trigger condition of the trigger.
  • the message carrying the SFF information allowed by the user is a message triggering the subscription of the SFF, and the ANDSF server considers the allowed user to use the changed message.
  • the service area of the SFF, the supported network type, the load condition, and the like, the SFF determined to be the mobile terminal service, and the information of the determined SFF for the mobile terminal service is sent to the mobile terminal.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a fourth embodiment of the present invention provides a method for acquiring signaling forwarding function entity information, where an ANDSF server requests location information of a mobile terminal from a network element in a source access network, and the ANDSF server works in a Pull mode.
  • the method specifically includes:
  • the mobile terminal sends a message requesting the SFF to the ANDSF server, where the message requesting the SFF may be a newly defined message, or may use an existing ANDSF message, such as an access network. Discover requests, location update requests, and more.
  • the ANDSF server After receiving the message requesting the SFF, the ANDSF server sends a location request message to the network element in the access network AN1 where the mobile terminal is currently located.
  • the network element in the AN1 may be a location server (LS) or an ASN-GW; when the access network AN1 where the mobile terminal is currently located is a WiFi network, The network element in AN1 may be an access controller (AC); when the access network AN1 where the mobile terminal is currently located is a 3GPP network, the network element in AN1 may be a general wireless packet service support node (Serving GPRS). Support Node, SGSN) or General GPRS Supporting Node (GGSN).
  • the location information of the mobile terminal in the access network may be a base station identifier (BSID) or a network access provider identifier (NAPID);
  • the access network is a WiFi network, and the location information of the mobile terminal in the access network may be a Basic Service Set Identity (BSSID) or an Access Point Identity (APID) or an access control.
  • the access controller identity (ACID) if the access network is a 3GPP network, the location information of the mobile terminal in the access network may be a cell identifier (cellID), a base station identifier (NodeB ID), or a sector identifier (Sector ID).
  • the ANDSF server determines, according to the pre-stored correspondence between the network location information of the mobile terminal and the SFF, an SFF corresponding to the network location information of the mobile terminal, where the SFF is an SFF determined by the ANDSF server to serve the mobile terminal.
  • the ANDSF server sends a response message to the mobile terminal, where the response message carries the information of the determined SFF.
  • the SFF information includes the address of the SFF or the SFF domain name.
  • step 604 if the network location information of the mobile terminal corresponds to multiple SFFs, the current access technology of the mobile terminal, the network type to be switched by the mobile terminal, the service range of the SFF, and the network supported by the SFF need to be considered.
  • Type and SFF load information select an SFF as The SFF of the mobile terminal service sends the information of the selected SFF in step 605.
  • the SFF assists the mobile terminal to perform handover preparation work in cooperation with the network element in the AN2 network through the AN1 network.
  • the ANDSF server requests the network location information of the mobile terminal from the network element in the source access network AN1, determines the SFF served by the mobile terminal, and notifies the mobile terminal by using the correspondence between the network location information of the mobile terminal and the SFF.
  • the mobile terminal learns the SFF that can help itself perform the handover preparation work such as pre-authentication, so that the mobile terminal uses the SFF to perform the handover preparation work.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • a fifth embodiment of the present invention provides a method for obtaining signaling forwarding function entity information, where the ANDSF server can work in a Pull mode or a Push mode, and an ANDSF server slave authentication, authorization, and accounting server.
  • the SFF information that is allowed to be used by the user is obtained in the user subscription information saved in the following example.
  • the following example uses the ANDSF server to work in the Pull mode.
  • the method includes:
  • the mobile terminal sends a message requesting the SFF to the ANDSF server, where the message requesting the SFF may be a newly defined message, or may use an existing ANDSF message, such as an access network discovery request, a location update request, or the like.
  • the ANDSF server After receiving the message requesting the SFF, the ANDSF server sends a subscription information request message to the authentication, authorization, and accounting server.
  • the authentication, authorization, and accounting server obtains the SFF information that is allowed to be used by the user from the user subscription information, and sends a subscription response message to the ANDSF server, where the subscription response message carries information of the SFF that is allowed to be used by the user.
  • the ANDSF server determines the SFF serving as the mobile terminal according to the locally recorded SFF information and the information of the SFF that the user is allowed to use.
  • the locally recorded SFF information includes: an address or a domain name of the SFF that the network side allows the mobile terminal to use, and a service range of the SFF, a network type supported by the SFF, and an SFF selection. Preload and SFF load conditions, etc.
  • the SSF determined by the ANDSF server to determine the SFF for the mobile terminal according to the locally recorded SFF information and the SFF information that the user is allowed to use may be implemented as follows: Searching for the SFF that is allowed to be used by the mobile terminal on the network side is also a secondary authentication and authorization. And the SFF in the SFF information that the billing server obtains to allow the user to use.
  • the ANDSF server sends the determined information of the SFF to the mobile terminal, where the SFF information includes an address of the SFF or a domain name of the SFF.
  • the mobile terminal and the network where the mobile terminal is located determine to perform network switching across the access type, and the mobile terminal sends a single radio frequency optimized handover preparation request to the SFF according to the received information of the SFF.
  • the SFF assists the mobile terminal to perform handover preparation work in cooperation with the network element in the AN2 network through the AN1 network.
  • the mobile terminal performs a re-entry operation, and establishes a connection with the AN2.
  • the fifth embodiment of the present invention obtains the information of the SFF that is allowed to be used by the user from the authentication, authorization, and accounting server in the network where the mobile terminal is currently located, and determines the service as the mobile terminal according to the information of the SFF that the user is allowed to use and the locally recorded SFF information.
  • the SFF does not require the mobile terminal to report the BS information, that is, the mobile terminal does not need to perform information exchange with the current network to obtain the BS information, shorten the delay of the handover of the mobile terminal, and improve the network processing efficiency.
  • a sixth embodiment of the present invention provides a method for acquiring signaling forwarding function entity information, where the ANDSF server can work in a Pull mode or a Push mode, and the difference from the above embodiments is an ANDSF.
  • the SFF information is sent to the mobile terminal, and the mobile terminal selects an appropriate SFF to perform the optimal handover preparation.
  • the following example uses the ANDSF server to work in the Pull mode.
  • the method includes:
  • the mobile terminal sends a message requesting the SFF to the ANDSF server, where the message requesting the SFF may be a newly defined message, or may use an existing ANDSF message, such as an access network discovery request, a location update request, or the like.
  • the message requesting the SFF carries the network location information of the mobile terminal.
  • the ANDSF server responds to the SFF according to the pre-stored network location information of the mobile terminal.
  • the relationship determines that the network location information of the mobile terminal corresponds to multiple SFFs, that is, multiple SFFs can serve the mobile terminal.
  • the ANDSF server sends a response message to the mobile terminal, where the response message carries information of multiple SFFs, so as to provide information about multiple SFFs that can serve the mobile terminal to the mobile terminal.
  • the information of the SFF in this step may include at least one of a selection priority of the SFF, a network type applicable to the SFF, a service range of the SFF, and a load condition of the SFF, in addition to the address of the SFF or the domain name of the SFF, so as to follow the mobile terminal. Select SFF.
  • the mobile terminal selects one SFF according to the pre-configured SFF information table and the received information of multiple SFFs.
  • the SFF can be implemented in the following manner: The SFF that belongs to both the ANDSF server and the pre-configured SFF information table is searched. If only one SFF is found, the radio frequency optimized handover preparation request is sent to the SFF in step 805. If multiple SFFs are found, an SFF is determined based on information such as SFF selection priority, SFF applicable network type, SFF service range, and SFF load status. If there is no SFF in the SFF information table provided by the ANDSF server and belongs to the pre-configured SFF information table, among the multiple SFFs provided by the ANDSF server, the high priority is selected and the SFF of the network type to be switched is supported.
  • the mobile terminal and its current network determine to perform network switching across the access type, and the mobile terminal sends a single radio frequency optimized handover preparation request to the selected SFF.
  • the mobile terminal performs a re-entry operation, and establishes a connection with the AN2.
  • the ANDSF server can send multiple SFF information for the mobile terminal to select an SFF.
  • a seventh embodiment of the present invention provides a method for acquiring signaling forwarding function entity information, where the SFF information that can be served by the mobile terminal is sent to the mobile terminal in a network authentication and authorization phase of the mobile terminal, where The method specifically includes:
  • the mobile terminal When the mobile terminal first accesses the network or needs to re-authenticate, the mobile terminal sends an AN1 to the AN1.
  • the Authenticator sends an authentication request, and the SFF request indication may be carried in the authentication request.
  • the network location information of the mobile terminal is carried in the authentication request.
  • the authenticator in the AN1 authenticates the mobile terminal.
  • the authentication, authorization, and accounting server selects the SFF information that is allowed to be used by the user and the locally recorded SFF information recorded in the subscription information of the user.
  • An SFF is allowed to be used by the user and the locally recorded SFF information recorded in the subscription information of the user.
  • the authentication, authorization, and accounting server may select the SFF as follows: Search for the SFF that is allowed to be used by the user and the SFF that is allowed to be used by the mobile terminal on the network side. If only one SFF is found, the authentication and authorization in the subsequent step 903 is performed. The result carries the information of the SFF; if more than one is found, an SFF is determined according to information such as the selection priority of the SFF, the network type to which the SFF applies, the service range of the SFF, and the load condition of the SFF.
  • the authentication, authorization, and accounting server may select an SFF according to the network location information of the mobile terminal and the locally recorded SFF information.
  • the authentication, authorization, and accounting server selects an SFF based on the SFF information allowed by the user, the network location information of the mobile terminal, and the locally recorded SFF information.
  • the authentication, authorization, and accounting server sends an authentication and authorization result to the authenticator in the AN1, where the authentication authorization result carries the information of the selected SFF.
  • the authentication device in the AN1 sends an authentication result to the mobile terminal, where the authentication result carries the information of the selected SFF, where the information of the SFF includes the address of the SFF or the domain name of the SFF.
  • the mobile terminal and the network where it is currently located determine to perform network switching across the access type, and the mobile terminal sends a single radio frequency optimized handover preparation request to the SFF.
  • the SFF assists the mobile terminal to perform handover preparation work in cooperation with the network element in the AN2 network through the AN1 network.
  • the SFF of the mobile terminal informs the mobile terminal of the SFF that is served by the mobile terminal, and carries the information of the SFF in the authentication result sent to the mobile terminal, saving the letter. Order.
  • the ANDSF server can send multiple SFF information for the mobile terminal to select the SFF, and the manner in which the mobile terminal selects the SFF is similar to the step 805. No longer.
  • authentication, authorization, and accounting servers mentioned in the embodiments of the present invention correspond to different network elements for authentication, authorization, and charging in different networks, and in the WiMAX network, Authentication, Authorization, Accounting (AAA) server, in the 3GPP network, refers to a Home Location Register (HLR) or a Home Subscriber Service (HSS).
  • HLR Home Location Register
  • HSS Home Subscriber Service
  • an embodiment of the present invention provides an apparatus for acquiring signaling forwarding function entity information, where the apparatus may be located on a signaling forwarding function entity to select a network element, where the apparatus includes:
  • the obtaining unit 1001 is configured to obtain, from a network currently accessed by the mobile terminal, information for determining the SFF;
  • a determining unit 1002 configured to determine, according to the information used to determine the SFF, an SFF serving the mobile terminal;
  • the sending unit 1003 is configured to send the determined information of the SFF to the mobile terminal.
  • the information for determining the SFF includes the network location information of the mobile terminal.
  • the obtaining unit 1001 obtains the network location information of the mobile terminal from the network element of the access network where the mobile terminal is currently located.
  • the information for determining the SFF includes SFF information that is allowed to be used by the user; at this time, the obtaining unit 1001 obtains the SFF information used by the user from the user subscription information saved by the authentication, authorization, and accounting server, where the user is The user on the mobile terminal.
  • the device for obtaining the signaling forwarding function entity information in the eighth embodiment of the present invention directly obtains the information for determining the SFF from the network currently accessed by the mobile terminal, and does not need to report the BS information by the mobile terminal, that is, the mobile terminal and the existing network are not required.
  • the information is exchanged to obtain the BS information, which shortens the delay of the handover of the mobile terminal and improves the network processing efficiency.
  • an embodiment of the present invention provides an apparatus for acquiring signaling forwarding function entity information, where the apparatus may be located on a signaling forwarding function entity to select a network element, where the apparatus includes:
  • the receiving unit 1101 is configured to receive a message that triggers a subscription SFF sent by a network currently accessed by the mobile terminal;
  • the obtaining unit 1102 is configured to obtain, after the receiving unit receives the message triggering the subscription of the SFF, information for determining the SFF;
  • a determining unit 1103 configured to determine, according to the information used to determine the SFF, an SFF serving the mobile terminal;
  • the sending unit 1104 is configured to send information about the SFF determined by the determining unit to the mobile terminal.
  • the receiving unit 1101 is configured to receive a message that triggers a subscription to the SFF sent by the network element of the access network where the mobile terminal is currently located, where the message that triggers the subscription of the SFF carries the network location information of the mobile terminal;
  • the information includes the network location information of the mobile terminal; or the receiving unit 1101 is configured to receive a message that triggers the subscription of the SFF sent by the authentication, authorization, and accounting server, where the message that triggers the subscription of the SFF carries the SFF that is allowed to be used by the user.
  • Information, the information for determining the SFF includes the SFF information that the user is allowed to use.
  • the obtaining unit 1102 requests the network location information of the mobile terminal from the mobile terminal, or requests the network location of the mobile terminal from the network element of the access network where the mobile terminal is currently located. Information, or, requesting SFF information that the user is allowed to use from the authentication, authorization, and accounting server.
  • an embodiment of the present invention provides an apparatus for acquiring signaling forwarding function entity information, where the apparatus may be located on an authentication, authorization, and accounting server, and the apparatus includes:
  • the receiving unit 1201 is configured to receive a message requesting authentication of the mobile terminal
  • a determining unit 1202 configured to determine, after receiving the message requesting authentication of the mobile terminal, an SFF serving the mobile terminal;
  • the sending unit 1203 is configured to send information about the SFF determined by the determining unit 1202 to the mobile terminal.
  • the device for obtaining the signaling forwarding function entity information provided in the tenth embodiment of the present invention notifies the mobile terminal of the SFF of the mobile terminal in the authentication phase of the mobile terminal, and does not require the mobile terminal to report the BS information, that is, the mobile terminal does not need to be present.
  • a network performs information exchange to obtain BS information, shortens the delay of handover of the mobile terminal, and improves network processing efficiency.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte, dans des modes de réalisation, à un procédé et à un appareil permettant d'acquérir des informations concernant la fonction de transmission de signalisation (SFF). Le procédé permettant d'acquérir des informations concernant la fonction SFF comprend les étapes suivantes : lors de la réception d'un message de déclenchement de souscription de fonction SFF transmis par le réseau, le terminal mobile qui a à présent accès à un élément de réseau pour sélectionner la fonction SFF, acquiert les informations qui sont utilisées pour déterminer la fonction SFF, détermine ensuite la fonction SFF qui est sur le point de desservir ledit terminal mobile selon lesdites informations qui sont utilisées pour déterminer la fonction SFF, transmet par la suite les informations concernant la fonction SFF déterminée audit terminal mobile. A l'aide de la solution technique proposée par le mode de réalisation de la présente invention, le terminal mobile peut être informé de la fonction SFF qui aidera à sa pré-authentification.
PCT/CN2010/075063 2009-07-08 2010-07-08 Procédé et appareil permettant d'acquérir des informations concernant une fonction de transmission de signalisation Ceased WO2011003356A1 (fr)

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CN 200910159340 CN101945463B (zh) 2009-07-08 2009-07-08 获取信令转发功能实体信息的方法及设备

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CN102802239A (zh) * 2011-05-25 2012-11-28 中兴通讯股份有限公司 一种基于网络状态提供接入网选择策略的方法及系统

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