CN101730202A - Method and device for determining access network discovery and selection functional unit policy - Google Patents
Method and device for determining access network discovery and selection functional unit policy Download PDFInfo
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Abstract
The invention discloses a method and a device for determining an access network discovery and selection functional unit policy. The method is used for determining the ANDSF policy for UE in a roaming state, wherein the ANDSF policy comprises an HANDSF policy and a VANDSF policy. The method comprises the following steps that: the UE acquires the HANDSF policy from an HANDSF, wherein the HANDSF policy carries indication information used for indicating whether to preferably select the HANDSF policy or not; and the UE acquires the indication information from the HANDSF policy and determines the used ANDSF policy according to the indication information. The method and the device for determining the access network discovery and selection functional unit policy solve the problem that the HANDSF policy and the VANDSF policy conflict with each other to further enable the UE to smoothly select the ANDSF policy.
Description
Technical field
The present invention relates to the communications field, in particular to definite method and apparatus of a kind of access network discovery and selection function unit (Access Network Discovery and Selection Function abbreviates ANDSF as) strategy.
Background technology
Third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) grouping system (the Evolved Packet System of evolution, abbreviate EPS as) by universal mobile telecommunications system land radio access web (the Evolved UniversalTerrestrial Radio Access Network of evolution, abbreviate E-UTRAN as), mobile management unit (Mobility Management Entity, abbreviate MME as), gateway (ServingGateway, abbreviate S-GW as), grouped data network gateway (Packet Data NetworkGateway abbreviates P-GW or PDN GW as), home subscriber server (Home
Subscriber Server abbreviates HSS as), "Policy and Charging Rules Function entity (Policyand Charging Rules Function abbreviates PCRF as) and other support nodes form.
Fig. 1 is the schematic diagram according to the system architecture of the EPS of correlation technique, as shown in Figure 1, the EPS system supports the intercommunication with non-3 GPP system, wherein, realize by the S2a/b/c interface that with the intercommunication of non-3 GPP system the anchor point between 3GPP and non-3 GPP system is P-GW.Non-3 GPP system is divided into the non-3GPP IP access of trusted and trustless non-3GPP IP inserts.The non-3GPP IP of trusted inserts and can directly be connected with P-GW by the S2a interface; Trustless non-3GPP IP inserts packet data gateway (the Evolved Packet Data Gateway that needs through evolution, abbreviate ePDG as) link to each other with P-GW, interface between ePDG and the P-GW is S2b, S2c provides UE and user's face relevant control and mobility support between the P-GW, the mobility management protocol of its support is for supporting the mobile IP v 6 (Moblie IPv6Support for Dual Stack Hosts andRouters abbreviates DSMIPv6 as) of two stacks.
In Fig. 1, MME is responsible for the related work of chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW is the accessing gateway equipment that links to each other with E-UTRAN, transmit data between E-UTRAN and P-GW, and be responsible for pending datas such as paging are carried out buffer memory, MME links to each other with E-UTRAN by S1-MME, E-UTRAN links to each other with S-GW by S1-U, and S-GW links to each other with MME by S 11; P-GW then is EPS and packet data network (Packet DataNetwork, abbreviate PDN as) borde gateway, the access of being responsible for PDN reaches functions such as transmitting data between EPS and PDN, and P-GW links to each other with S-GW by S5, and the IP operation that provides by SGi and operator links to each other; PCRF is the "Policy and Charging Rules Function entity, it is by receiving interface Rx and carrier network agreement (Internet Protocol, abbreviating IP as) business network links to each other, obtain business information, in addition, it links to each other with gateway device in the network by the Gx/Gxa/Gxc interface, wherein, PCRF links to each other with S-GW by Gxc, links to each other with the non-3GPP IP of trusted Access Network by Gxa, link to each other with P-GW by Gx, the IP operation that provides by Rx and operator links to each other, and PCRF is responsible for initiating the foundation of IP carrying, guarantees service quality (the Quality of Service of business datum, abbreviate QoS as), and the control of chargeing.
In Fig. 1, MME links to each other with HSS by S6a, HSS links to each other with the 3GPPAAA server by Wx*, 3GPP AAA links to each other with the non-3GPP IP of trusted Access Network by Ta*, 3GPP AAA links to each other with the non-3GPP IP of non-trust Access Network by Wa*, the non-3GPP IP of non-trust Access Network links to each other with ePDG by Wn*, and ePDG links to each other with UE by Wu*.
ANDSF proposes in the evolution block core (Evolved Packet Core abbreviates EPC as) at Rel-8.As UE during in home network or in home network of equal value registration, if have 3GPP and non-3 GPP access network simultaneously or have a plurality of non-3 GPP access networks simultaneously, EPS can offer the Access Network information that its current position of UE can be used by ANDSF, so that UE can select suitable Access Network according to s own situation.ANDSF comprises the function of two aspects: data management and controlled function can provide network to find and the selection auxiliary data according to carrier policy.ANDSF mainly provides two kinds of information: shift strategy and access network discovery information between system.Shift strategy is can be graduate between system, for example: and hard-core general strategy, the strategy of using according to the active state of UE, such as, UE stipulates different strategy etc. under movable (active) and idle (idle) state.If access network discovery information spinner: access network type: for example, WLAN (wireless local area network) (WirelessLocal Area Network, abbreviate WLAN as), micro-wave access to global intercommunication (WorldwideInteroperability for Microwave Access abbreviates Wimax as); The Access Network sign: for example, the service set identifiers among the WLAN (Service Set Identifier abbreviates SSID as); The PLMN information that can insert; The priority of access network etc.ANDSF also can offer the quantity of UE information based on limit information such as the current position of UE, capacity.Certainly, according to the demand of operator, ANDSF can provide two kinds of information simultaneously or wherein a kind of information only is provided.ANDSF can be by domain name service (Domain NameServer, abbreviate DNS as) function or DHCP (Dynamic HostConfiguration Protocol, abbreviate DHCP as) the service function discovery, also the address of ANDSF directly can be offered UE.
Fig. 2 is the schematic diagram according to the ANDSF use of correlation technique, and as shown in Figure 2, ANDSF (shown in the figure is visit ANDSF (hereinafter referred to as VANDSF)) directly links to each other with UE by the S14 interface.This interface uses open mobile alliance (Open MobileAlliance abbreviates OMA as) equipment control (Device Manage abbreviates DM as) agreement.The support of S14 interface is drawn (PULL) and is pushed away (PUSH) pattern.The PULL pattern mainly is that UE carries out the active application to network, triggers ANDSF and sends the network information to UE.And the PUSH pattern mainly is initiatively to be triggered to UE by network to send data.
Fig. 3 is the flow chart according to the work of the ANDSF of correlation technique, and as shown in Figure 3, this workflow comprises that step 301 is to step 306:
Step 301:UE is linked into the EPC system by 3GPP Access Network or non-3 GPP access network, that is, UE inserts P-GW by 3GPP or non-3GPP.
After step 302:UE is linked into the EPC system, find ANDSF.
Step 303:UE sends access network request message to ANDSF, carries UE ability information (UE Capabilities), UE positional information (UELocation) in this access network request message.
After step 304:ANDSF receives the access network request message of UE transmission, the positional information that reports according to UE, send the access network response message to UE, wherein, carry access network information (Available Access Network Info) that the UE current location can use and the system's shift strategy (UpdatedInter-system Mobility Policies) that upgrades in this access network response message.
After step 305:UE receives the access network response message of ANDSF transmission, carry out network selecting and switch decision.
Step 306:UE switches according between self needs initiation system.
Fig. 4 is the schematic diagram that uses according to ANDSF under the roaming scence of correlation technique, and as shown in Figure 4, UE is connected with VANDSF with ownership ANDSF (hereinafter referred to as HANDSF) respectively by two S14 interfaces.HANDSF sends the relevant access network policy of roaming UE to UE, and VANDSF sends the relevant access network policy on visit ground to UE.Because the access network policy of UE is provided by HANDSF and VANDSF respectively, therefore, the access network policy that HANDSF and VANDSF provide is likely conflict.For example: the access network policy that HANDSF provides is: WLAN/SSID=v, Priority=1; WLAN/SSID=z, Priority=2.And the access network policy that VANDSF provides is: WLAN/SSID=z, Priority=1; WLAN/SSID=v, Priority=2.And UE handles the access network policy of these two kinds of conflicts by following two principles:
(1) decides how to select wireless access technology (Radio AccessTechnology abbreviates RAT as) by visited network.
(2) under roaming scence, home network can be selected its network priority.
Problem at HANDSF strategy and VANDSF policy conflict in the correlation technique does not propose effective solution at present as yet.
Summary of the invention
Propose the present invention at the problem of HANDSF strategy in the correlation technique and VANDSF policy conflict, for this reason, main purpose of the present invention is to provide a kind of definite scheme of ANDSF strategy, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of definite method of ANDSF strategy.
Definite method according to ANDSF strategy of the present invention, be used to the subscriber equipment that is under the roaming state to determine the ANDSF strategy, wherein, the ANDSF strategy comprises ownership access network discovery and selection functional entity HANDSF strategy and visit access network discovery and selection functional entity VANDSF strategy, said method comprises: subscriber equipment obtains the HANDSF strategy from HANDSF, wherein, carry the indication information that is used to indicate whether preferentially to select the HANDSF strategy in the HANDSF strategy; Subscriber equipment obtains indication information from the HANDSF strategy, and determines the ANDSF strategy of use according to indication information.
Wherein, subscriber equipment obtains the HANDSF strategy from HANDSF and comprises: subscriber equipment sends the home access network request message to HANDSF, and carries the public land mobile network sign on visit ground therein; Subscriber equipment receives the home access network response message from HANDSF, wherein, carries the HANDSF strategy in the home access network response message.
Preferably, after HANDSF sent the home access network request message, said method also comprised at subscriber equipment: HANDSF receives the home access network request message from subscriber equipment; HANDSF determines the HANDSF strategy according to the public land mobile network sign on the visit ground of user equipment to report; HANDSF sends the home access network response message to subscriber equipment.
Wherein, HANDSF determines that according to the public land mobile network sign on the visit ground of user equipment to report the HANDSF strategy comprises: HANDSF judges whether the public land mobile network sign on the visit ground of user equipment to report equates with the public land mobile network sign of local storage; If equate, then HANDSF is local policy to the HANDSF strategy that subscriber equipment issues; If unequal, then HANDSF is the roaming strategy to the HANDSF strategy that subscriber equipment issues.
Preferably, the HANDSF strategy also comprises: system's shift strategy of the roaming access network information that the subscriber equipment current location can be used, renewal.
Preferably, before subscriber equipment obtained the HANDSF strategy from HANDSF, said method also comprised: subscriber equipment obtains the VANDSF strategy from VANDSF.
Preferably, after subscriber equipment obtained the HANDSF strategy from HANDSF, said method also comprised: subscriber equipment obtains the VANDSF strategy from VANDSF.
Wherein, subscriber equipment obtains the VANDSF strategy from VANDSF and comprises: subscriber equipment sends visit access network request message to VANDSF, and carries the public land mobile network sign on visit ground therein; Subscriber equipment receives the home access network response message from VANDSF, wherein, carries the VANDSF strategy in the home access network response message.
Preferably, after VANDSF sent visit access network request message, said method also comprises: VANDSF received the visit access network request message from subscriber equipment at subscriber equipment; VANDSF determines the VANDSF strategy according to the public land mobile network sign on the visit ground of user equipment to report; VANDSF sends visit access network response message to subscriber equipment.
Wherein, VANDSF determines that according to the public land mobile network sign on the visit ground of user equipment to report the VANDSF strategy comprises: VANDSF judges whether the public land mobile network sign on the visit ground of user equipment to report equates with the public land mobile network sign of local storage; If equate, then VANDSF is local policy to the VANDSF strategy that subscriber equipment issues; If unequal, then VANDSF is the roaming strategy to the VANDSF strategy that subscriber equipment issues.
Preferably, the VANDSF strategy comprises: system's shift strategy of the roaming access network information that the subscriber equipment current location can be used, renewal.
Preferably, indication information comprises predetermined sign, wherein, is used to indicate preferential selection HANDSF strategy when being scheduled to be designated first predetermined value, is used to indicate preferential selection VANDSF strategy when being scheduled to be designated second predetermined value.
Preferably, identify under the default situation predetermined, indication information is used to indicate preferred selection VANDSF strategy.
To achieve these goals, according to another aspect of the present invention, provide a kind of subscriber equipment.
Subscriber equipment according to the present invention comprises: first acquisition module, be used for obtaining the HANDSF strategy from HANDSF, and wherein, carry the indication information that is used to indicate whether preferably to select the HANDSF strategy in the HANDSF strategy; Second acquisition module is used for obtaining indication information from the HANDSF strategy that first acquisition module obtains; First determination module, the indication information that is used for obtaining according to second acquisition module is determined the ANDSF strategy of use, wherein, the ANDSF strategy comprises HANDSF strategy and VANDSF strategy.
To achieve these goals, according to a further aspect of the invention, provide a kind of HANDSF.
HANDSF according to the present invention comprises: receiver module, be used to receive home access network request message from subscriber equipment, and wherein, carry the public land mobile network sign on visit ground in the home access network request message; Second determination module is used for the definite HANDSF strategy of public land mobile network sign according to the visit ground of user equipment to report, wherein, carries the indication information that is used to indicate whether preferably to select the HANDSF strategy in the HANDSF strategy; Sending module is used for sending the home access network response message to subscriber equipment, wherein, carries indication information in the home network response message.
By the present invention, UE obtains from HANDSF and carries the HANDSF strategy that is used to indicate whether preferably select the indication information of HANDSF strategy, and according to the definite ANDSF strategy that uses of this indication information, solved the problem of HANDSF strategy and VANDSF policy conflict in the correlation technique, and then made the UE can successfully select the ANDSF strategy.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the system architecture of the EPS of correlation technique;
Fig. 2 is the schematic diagram according to the ANDSF use of correlation technique;
Fig. 3 is the flow chart according to the work of the ANDSF of correlation technique;
Fig. 4 is the schematic diagram that uses according to ANDSF under the roaming scence of correlation technique;
Fig. 5 is the flow chart according to definite method of the ANDSF strategy of the embodiment of the invention;
Fig. 6 is a workflow diagram of handling the conflict strategy according to UE under the roaming scence of the embodiment of the invention one;
Fig. 7 is a workflow diagram of handling the conflict strategy according to UE under the roaming scence of the embodiment of the invention two;
Fig. 8 is the structured flowchart according to the UE of the embodiment of the invention;
Fig. 9 is the structured flowchart according to the HANDSF of the embodiment of the invention.
Embodiment
Functional overview
Consider the problem of strategy of HANDSF in the correlation technique and VANDSF policy conflict, the embodiment of the invention provides definite scheme of ANDSF strategy, is used for the conflict that solves HANDSF strategy and VANDSF strategy under the principle of UE processing access network policy conflict under roaming scence.The treatment principle of this scheme is as follows: under default situation, UE is a default policy with the strategy (that is VANDSF strategy) of visit net.If carry sign in the HANDSF return messages, the not hope that this sign requires to respect home network allows to revise the HANDSF strategy, and then UE is as the criterion with the strategy (that is HANDSF strategy) of home network.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, a kind of definite method of ANDSF strategy is provided, be used to the UE that is under the roaming state to determine the ANDSF strategy, wherein, the ANDSF strategy comprises HANDSF strategy and VANDSF strategy.
Fig. 5 is the flow chart according to definite method of the ANDSF strategy of the embodiment of the invention, and as shown in Figure 5, this method comprises that following step S502 is to step S504:
Step S502, UE obtains the HANDSF strategy from HANDSF, wherein, carries the indication information that is used to indicate whether preferably to select the HANDSF strategy in the HANDSF strategy.The HANDSF strategy can also comprise: system's shift strategy of the roaming access network information that the UE current location can be used, renewal (Updated Inter-system Mobility Policies).
Wherein, this indication information can comprise predetermined sign, wherein, (for example be designated first predetermined value predetermined, 1) is used to indicate preferred selection HANDSF strategy the time, when being scheduled to be designated second predetermined value (for example, 0), is used to indicate preferred selection VANDSF strategy, identify under the default situation predetermined, this indication information is used to indicate preferred selection VANDSF strategy.
Step S504, UE obtains indication information from the HANDSF strategy, and determines the ANDSF strategy of use according to indication information.
In the specific implementation process, the operation of step S502 can comprise:
(1) UE sends the home access network request message to HANDSF, and carries the public land mobile network sign (Visit Public Land MobileNetwork ID abbreviates VPLMNID as) on visit ground therein.
(2) HANDSF receives the home access network request message from UE, and determines the HANDSF strategy according to the VPLMNID that UE reports, and then, HANDSF sends the home access network response message to UE.
Particularly, HANDSF judges whether the VPLMNID that UE reports equates with the PLMNID of local storage, if equate, then HANDSF is local policy to the HANDSF strategy that UE issues; If unequal, then HANDSF is the roaming strategy to the HANDSF strategy that UE issues.
(3) UE receives the home access network response message from HANDSF, wherein, carries the HANDSF strategy in the home access network response message.
Before the step S502 or after step S502, this method can also comprise that following operation: UE obtains the VANDSF strategy from VANDSF, and this VANDSF strategy can comprise: system's shift strategy of the roaming access network information that the UE current location can be used, renewal.This operation specifically can comprise the steps:
(1) UE sends visit access network request message to VANDSF, and carries VPLMNID therein.
(2) VANDSF receives the visit access network request message from UE, and determines the VANDSF strategy according to the VPLMNID that UE reports, and then, VANDSF sends visit access network response message to UE.
Particularly, VANDSF judges whether the VPLMNID that UE reports equates with the PLMNID of local storage; If equate, then VANDSF is local policy to the VANDSF strategy that UE issues; If unequal, then VANDSF is the roaming strategy to the VANDSF strategy that UE issues.
(3) UE receives the home access network response message from VNDSF, wherein, carries the VANDSF strategy in the home access network response message.
By this embodiment, UE obtains from HANDSF and carries the HANDSF strategy that is used to indicate whether preferably select the indication information of HANDSF strategy, and according to the definite ANDSF strategy that uses of this indication information, solved the problem of HANDSF strategy and VANDSF policy conflict in the correlation technique, and then made the UE can successfully select the ANDSF strategy.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Embodiment one
UE at first is linked into the EPC system by 3GPP Access Network or trusty/fly-by-night non-3 GPP access network.Under roaming scence, UE obtains different tactful A1 and A2 from HANDSF and VANDSF respectively.The problem of main processing policy A1 of this embodiment and tactful A2 conflict.
Fig. 6 is a workflow diagram of handling the conflict strategy according to UE under the roaming scence of the embodiment of the invention one, and as shown in Figure 6, this flow process comprises that following step 601 is to step 603:
Step 601:UE obtains visit access network strategy (promptly to VANDSF, the VANDSF strategy), this VANDSF strategy comprises: access network information that the UE current location can be used (Available Access Network Info) and the system's shift strategy (UpdatedInter-system Mobility Policies) that upgrades.
The processing of this step 601 specifically comprises following step:
(1) UE sends visit access network request message to VANDSF, carries UE ability information (UE Capabilities), UE positional information (UE Location), VPLMNID in this visit access network request message.
(2) after VANDSF receives the visit access network request message of UE transmission, judge whether the VPLMNID that UE reports equates with the PLMNID of VANDSF this locality.If unequal, then VANDSF is the roaming strategy to the strategy that UE issues.If equate, then the strategy that issues to UE of VANDSF is a local policy.
(3) positional information that reports according to UE of VANDSF, send visit access network response message to UE, carry the access network information (Available Access Network Info) on the visit ground that the UE current location can use and system's shift strategy (Updated Inter-system Mobility Policies) of renewal in this visit access network response message.
The roaming strategy that step 602:UE obtains home access network to HANDSF (promptly, the HANDSF strategy), this HANDSF strategy comprises: system's shift strategy of roaming access network information that the UE current location can be used and renewal, HANDSF sends the hope sign (promptly to UE simultaneously, above-mentioned predetermined sign), if home network UE is as the criterion with visit ground strategy, then the hope sign is set to 1.Under default situation, this hope is designated 0.
The processing of this step 602 comprises following step:
(1) UE sends the home access network request message to HANDSF, carries UE ability information (UE Capabilities), UE positional information (UE Location), VPLMNID in this home access network request message.
(2) after HANDSF receives the home access network request message of UE transmission, judge whether the VPLMNID that UE reports equates with the PLMNID of HANDSF this locality, if unequal, then HANDSF is the roaming strategy to the HANDSF strategy that UE issues.If equate, then HANDSF is local policy to the HANDSF strategy that UE issues.
(3) HANDSF sends the home access network response message to UE, carry roaming access network information that the UE current location can use and system's shift strategy of renewal in this home access network response message, HANDSF sends the hope sign to UE simultaneously, if home network UE is as the criterion with the ownership place strategy, then the hope sign is changed to 1.Under default situation, this hope is designated 0.
Step 603:UE judges the hope sign that HANDSF sends, if be 1, then default policy is revised as home access network strategy (that is, the HANDSF strategy), otherwise default policy is visit ground access network policy (that is VANDSF strategy).
By this embodiment, provide UE before obtaining the HANDSF strategy, to obtain the handling process of VANDSF strategy from VANDSF from HANDSF.
Embodiment two
UE at first is linked into the EPC system by 3GPP Access Network or trusty/fly-by-night non-3 GPP access network.Under roaming scence, UE obtains different tactful A1 and A2 from HANDSF and VANDSF respectively.The problem of main processing policy A1 of this embodiment and tactful A2 conflict.
Fig. 7 is a workflow diagram of handling the conflict strategy according to UE under the roaming scence of the embodiment of the invention two, and as shown in Figure 7, this flow process comprises that following step 701 is to step 703:
The roaming strategy that step 701:UE obtains home access network to HANDSF (promptly, the HANDSF strategy), this HANDSF strategy comprises: system's shift strategy of roaming access network information that the UE current location can be used and renewal, HANDSF sends the hope sign (promptly to UE simultaneously, above-mentioned predetermined sign), if home network UE is as the criterion with visit ground strategy, then the hope sign is set to 1.Under default situation, this hope is designated 0.
The processing of this step 701 comprises following step:
(1) UE sends the home access network request message to HANDSF, carries UE ability information (UE Capabilities), UE positional information (UE Location), VPLMNID in this home access network request message.
(2) after HANDSF receives the home access network request message of UE transmission, judge whether the VPLMNID that UE reports equates with the PLMNID of HANDSF this locality, if unequal, then HANDSF is the roaming strategy to the HANDSF strategy that UE issues.If equate, then HANDSF is local policy to the HANDSF strategy that UE issues.
(3) HANDSF sends the home access network response message to UE, carry roaming access network information that the UE current location can use and system's shift strategy of renewal in this home access network response message, HANDSF sends the hope sign to UE simultaneously, if home network UE is as the criterion with the ownership place strategy, then the hope sign is changed to 1.Under default situation, this hope is designated 0.
Step 702:UE obtains visit access network strategy (promptly to VANDSF, the VANDSF strategy), this VANDSF strategy comprises: access network information that the UE current location can be used (Available Access Network Info) and the system's shift strategy (UpdatedInter-system Mobility Policies) that upgrades.
The processing of this step 702 specifically comprises following step:
(1) UE sends visit access network request message to VANDSF, carries UE ability information (UE Capabilities), UE positional information (UE Location), VPLMNID in this visit access network request message.
(2) after VANDSF receives the visit access network request message of UE transmission, judge whether the VPLMNID that UE reports equates with the PLMNID of VANDSF this locality.If unequal, then VANDSF is the roaming strategy to the strategy that UE issues.If equate, then the strategy that issues to UE of VANDSF is a local policy.
(3) positional information that reports according to UE of VANDSF, send visit access network response message to UE, carry the access network information (Available Access Network Info) on the visit ground that the UE current location can use and system's shift strategy (Updated Inter-system Mobility Policies) of renewal in this visit access network response message.
Step 703:UE judges the hope sign that HANDSF sends, if be 1, then default policy is revised as home access network strategy (that is, the HANDSF strategy), otherwise default policy is visit ground access network policy (that is VANDSF strategy).
By this embodiment, provide UE after obtaining the HANDSF strategy, to obtain the handling process of VANDSF strategy from VANDSF from HANDSF.
Device embodiment
Embodiment one
According to embodiments of the invention, provide a kind of UE.Fig. 8 is the structured flowchart according to the UE of the embodiment of the invention, and as shown in Figure 8, this UE comprises: first acquisition module 82, second acquisition module 84, first determination module 86 are described said structure below.
First acquisition module 82 is used for obtaining the HANDSF strategy from HANDSF, wherein, carries the indication information that is used to indicate whether preferably to select the HANDSF strategy in the HANDSF strategy; Second acquisition module 84 is connected to first acquisition module, is used for obtaining indication information from the HANDSF strategy that first acquisition module 82 obtains; First determination module 86 is connected to second acquisition module 84, and the indication information that is used for obtaining according to second acquisition module 84 is determined the ANDSF strategy of use, and wherein, the ANDSF strategy comprises HANDSF strategy and VANDSF strategy.
Wherein, this indication information can comprise predetermined sign, wherein, (for example be designated first predetermined value predetermined, 1) is used to indicate preferred selection HANDSF strategy the time, when being scheduled to be designated second predetermined value (for example, 0), is used to indicate preferred selection VANDSF strategy, identify under the default situation predetermined, this indication information is used to indicate preferred selection VANDSF strategy.
By this embodiment, UE can obtain from HANDSF and carry the HANDSF strategy that is used to indicate whether preferably select the indication information of HANDSF strategy, and determines the ANDSF strategy that uses according to this indication information.
Embodiment two
According to embodiments of the invention, provide a kind of HANDSF.Fig. 9 is the structured flowchart according to the HANDSF of the embodiment of the invention, and as shown in Figure 9, this HANDSF comprises receiver module 92, second determination module 94, sending module 96, below said structure is described.
Receiver module 92 is used to receive the home access network request message from UE, wherein, carries VPLMNID in the home access network request message; Second determination module 94 is connected to receiver module 92, is used for determining the HANDSF strategy according to the VPLMNID that UE reports, and wherein, carries the indication information that is used to indicate whether preferably to select the HANDSF strategy in the HANDSF strategy; Sending module 96 is connected to second determination module 94, is used for sending the home access network response message to UE, wherein, carries indication information in the home network response message.
Wherein, this indication information can comprise predetermined sign, wherein, (for example be designated first predetermined value predetermined, 1) is used to indicate preferred selection HANDSF strategy the time, when being scheduled to be designated second predetermined value (for example, 0), is used to indicate preferred selection VANDSF strategy, identify under the default situation predetermined, this indication information is used to indicate preferred selection VANDSF strategy.
By this embodiment, HANDSF can be according to determining to carry the HANDSF strategy that is used to indicate whether preferably select the indication information of HANDSF strategy from the home access network request message of UE, and this HANDSF strategy is sent to UE.
In sum, pass through the above embodiment of the present invention, UE obtains from HANDSF and carries the HANDSF strategy that is used to indicate whether preferably select the indication information of HANDSF strategy, and according to the definite ANDSF strategy that uses of this indication information, solved the problem of HANDSF strategy and VANDSF policy conflict in the correlation technique, and then made the UE can successfully select the ANDSF strategy.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. definite method of access network discovery and selection function unit ANDSF strategy, be used to the subscriber equipment that is under the roaming state to determine the ANDSF strategy, wherein, described ANDSF strategy comprises ownership access network discovery and selection functional entity HANDSF strategy and visit access network discovery and selection functional entity VANDSF strategy, it is characterized in that described method comprises:
Subscriber equipment obtains described HANDSF strategy from HANDSF, wherein, carries the indication information that is used to indicate whether preferentially to select the HANDSF strategy in the described HANDSF strategy;
Described subscriber equipment obtains described indication information from described HANDSF strategy, and determines the ANDSF strategy of use according to described indication information.
2. method according to claim 1 is characterized in that, described subscriber equipment obtains described HANDSF strategy from described HANDSF and comprises:
Described subscriber equipment sends the home access network request message to HANDSF, and carries the public land mobile network sign on visit ground therein;
Described subscriber equipment receives the home access network response message from described HANDSF, wherein, carries described HANDSF strategy in the described home access network response message.
3. method according to claim 2 is characterized in that, after described HANDSF sent described home access network request message, described method also comprised at described subscriber equipment:
Described HANDSF receives the described home access network request message from described subscriber equipment;
Described HANDSF determines described HANDSF strategy according to the public land mobile network sign on the described visit ground of described user equipment to report;
Described HANDSF sends described home access network response message to described subscriber equipment.
4. method according to claim 3 is characterized in that, described HANDSF determines that according to the public land mobile network sign on the described visit ground of described user equipment to report described HANDSF strategy comprises:
Described HANDSF judges whether the public land mobile network sign on the described visit ground of described user equipment to report equates with the public land mobile network sign of local storage;
If equate, then described HANDSF is local policy to the described HANDSF strategy that described subscriber equipment issues;
If unequal, then described HANDSF is the roaming strategy to the described HANDSF strategy that described subscriber equipment issues.
5. according to each described method in the claim 1 to 4, it is characterized in that described HANDSF strategy also comprises:
The roaming access network information that described subscriber equipment current location can be used, system's shift strategy of renewal.
6. method according to claim 1 is characterized in that, before described subscriber equipment obtained described HANDSF strategy from described HANDSF, described method also comprised:
Described subscriber equipment obtains described VANDSF strategy from described VANDSF.
7. method according to claim 1 is characterized in that, after described subscriber equipment obtained described HANDSF strategy from described HANDSF, described method also comprised:
Described subscriber equipment obtains described VANDSF strategy from described VANDSF.
8. according to claim 6 or 7 described methods, it is characterized in that described subscriber equipment obtains described VANDSF strategy from described VANDSF and comprises:
Described subscriber equipment sends visit access network request message to described VANDSF, and carries the public land mobile network sign on visit ground therein;
Described subscriber equipment receives the home access network response message from described VANDSF, wherein, carries described VANDSF strategy in the described home access network response message.
9. method according to claim 8 is characterized in that, after described VANDSF sent described visit access network request message, described method also comprised at described subscriber equipment:
Described VANDSF receives the described visit access network request message from described subscriber equipment;
Described VANDSF determines described VANDSF strategy according to the public land mobile network sign on the described visit ground of described user equipment to report;
Described VANDSF sends described visit access network response message to described subscriber equipment.
10. method according to claim 9 is characterized in that, described VANDSF determines that according to the public land mobile network sign on the described visit ground of described user equipment to report described VANDSF strategy comprises:
Described VANDSF judges whether the public land mobile network sign on the described visit ground of described user equipment to report equates with the public land mobile network sign of local storage;
If equate, then described VANDSF is local policy to the described VANDSF strategy that described subscriber equipment issues;
If unequal, then described VANDSF is the roaming strategy to the described VANDSF strategy that described subscriber equipment issues.
11., it is characterized in that described VANDSF strategy comprises according to claim 9 or 10 described methods:
The roaming access network information that described subscriber equipment current location can be used, system's shift strategy of renewal.
12. according to each described method in the claim 1 to 4,6,7,9,10, it is characterized in that, described indication information comprises predetermined sign, wherein, at the described predetermined described HANDSF strategy of preferential selection that is used to indicate when being designated first predetermined value, at the described predetermined described VANDSF strategy of preferential selection that is used to indicate when being designated second predetermined value.
13. method according to claim 12 is characterized in that, under the default situation of described predetermined sign, described indication information is used to indicate the described VANDSF strategy of preferred selection.
14. a subscriber equipment is characterized in that, comprising:
First acquisition module is used for obtaining the HANDSF strategy from HANDSF, wherein, carries the indication information that is used to indicate whether preferably to select the HANDSF strategy in the described HANDSF strategy;
Second acquisition module is used for obtaining described indication information from the described HANDSF strategy that described first acquisition module obtains;
First determination module, the described indication information that is used for obtaining according to described second acquisition module is determined the ANDSF strategy of use, wherein, described ANDSF strategy comprises described HANDSF strategy and VANDSF strategy.
15. a HANDSF is characterized in that, comprising:
Receiver module is used to receive the home access network request message from subscriber equipment, wherein, carries the public land mobile network sign on visit ground in the described home access network request message;
Second determination module, be used for the definite HANDSF strategy of public land mobile network sign according to the described visit ground of described user equipment to report, wherein, carry the indication information that is used to indicate whether preferably to select described HANDSF strategy in the described HANDSF strategy;
Sending module is used for sending the home access network response message to described subscriber equipment, wherein, carries described indication information in the described home network response message.
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| CN 200910130644 CN101730202B (en) | 2009-03-23 | 2009-03-23 | Method and device for determining access network discovery and selection functional unit policy |
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| CN 200910130644 CN101730202B (en) | 2009-03-23 | 2009-03-23 | Method and device for determining access network discovery and selection functional unit policy |
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| CN102958029A (en) * | 2011-08-29 | 2013-03-06 | 中国移动通信集团上海有限公司 | Method and device for managing and controlling charging and quality of service (QoS) strategies |
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