CN101945463A - Method and equipment for obtaining signaling forwarding function (SFF) entity information - Google Patents
Method and equipment for obtaining signaling forwarding function (SFF) entity information Download PDFInfo
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- CN101945463A CN101945463A CN2009101593408A CN200910159340A CN101945463A CN 101945463 A CN101945463 A CN 101945463A CN 2009101593408 A CN2009101593408 A CN 2009101593408A CN 200910159340 A CN200910159340 A CN 200910159340A CN 101945463 A CN101945463 A CN 101945463A
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- 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
Abstract
The embodiment of the invention provides a method and equipment for obtaining signaling forwarding function (SFF) entity information. The method for obtaining SFF entity information comprises the following step that an SFF entity selecting network element obtains information for confirming SFF after receiving a message for triggering and subscribing SFF transmitted by a network which is currently accessed into the mobile terminal, confirms the SFF served for the mobile terminal according to the information for confirming the SFF and transmits the information of the confirmed SFF to the mobile terminal. According to the technical scheme provided by the embodiment of the invention, the mobile terminal can obtain an SFF entity for helping the mobile terminal to carry out advanced authentication.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method and apparatus that obtains signaling forwarding capability entity information.
Background technology
As the expansion of WiMAX access technology, and the micro-wave access global inter communication access (WorldInteroperability for Microwave Access, WiMAX) network has increased the support to terminal mobility, and Fig. 1 shows the WiMAX network architecture diagram.Wherein, (Access ServiceNetwork ASN) is the set that one group of functional entity of wireless access is provided for WiMAX user to access business network, and it comprises that (Base Station is BS) with access business network gateway (ASN-GW) in the base station.(Connectivity Service Network is the set that one group of functional entity of IP connection and business is provided for WiMAX user CSN), and it comprises AAA server to connect business network.(Mobile Station MS) is the mobile device that network insertion is provided for WiMAX user to portable terminal.
WiFi (Wireless Fidelity, Wireless Fidelity) network is the industrial standard of a wireless communication of IEEE definition, mainly comprise following network element: website (Station), basic service unit (BasicService Set, BSS) and access point (Access Point, AP).
In order to improve user experience, need the intercommunication between realization WiMAX network and the WiFi network.In the WiFi-WiMAX intercommunication network,, be divided into injection Single Radio intercommunication frequently and dijection Dual Radio intercommunication frequently according to the Radio situation that portable terminal can be supported.When portable terminal is only supported the SingleRadio mode of operation, when switching to another kind of access network (such as when the WiMAX network switches to the WiFi network) from a kind of access network, need do access authentication again at new network, usually the time delay of access authentication is longer, in order to promote user experience, can be before the switching of eating dishes without rice or wine, need certain entity to help portable terminal to carry out pre-authentication, after pre-authentication is finished, the portable terminal new network of will eating dishes without rice or wine again to switch to carries out the network re-entry operation and needn't carry out access authentication again.The entity that this help portable terminal carries out pre-authentication is called SFF (Signal Forwarding Function, signal forwarding function) entity.
Prior art provides a kind of method of the SFF of obtaining information, portable terminal obtains the ID of BS, domain name according to BS sends Domain Name Services (Domain Name Service, DNS) inquiry request message is to dns server, dns server finds SFF according to the mapping relations of pre-configured BS and SFF, and SFF information is sent to portable terminal.Wherein, the portable terminal that the single-shot list is received is by carrying out information interaction with the existing network that is connected, obtaining the ID's of its peripheral base station.
Prior art has following shortcoming:
Portable terminal for single-shot list receipts, it is by carrying out information interaction to obtain the ID of its peripheral base station with the existing network that is connected, again from dns server inquiry SFF, like this, portable terminal is before switching, need repeatedly to carry out having prolonged the portable terminal time delay for switching alternately, reduced network processes efficient with network.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus that obtains signaling forwarding capability entity information, portable terminal is known helped portable terminal to carry out the signaling forwarding capability entity of pre-authentication.
In view of this, the embodiment of the invention provides:
A kind of method of obtaining signaling forwarding capability entity SFF information comprises:
Signaling forwarding capability entity selection network element obtains to be used for determining the information of SFF from the network of the current access of portable terminal;
According to the described information that is used for determining SFF, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
A kind of method of obtaining signaling forwarding capability entity SFF information comprises:
After the message of SFF is subscribed in the triggering that the network of the current access of signaling forwarding capability entity selection network element mobile terminal receive sends, obtain the information that is used for determining SFF, according to the described information that is used for determining SFF, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
A kind of method of obtaining signaling forwarding capability entity information comprises:
After AAA server receives the message of request to the portable terminal authentication, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
A kind of signaling forwarding capability entity selection device comprises:
Acquiring unit is used for obtaining to be used for determining from the network of the current access of portable terminal the information of SFF;
Determining unit is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of determined SFF is sent to described portable terminal.
A kind of signaling forwarding capability entity selection device comprises:
Receiving element is used for the message that SFF is subscribed in triggering that the network of the current access of mobile terminal receive sends;
Acquiring unit is used for obtaining the information that is used for determining SFF after described receiving element receives the message that triggers subscription SFF;
Determining unit is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of the determined SFF of described determining unit is sent to described portable terminal.
A kind of signaling forwarding capability entity selection device comprises:
Receiving element is used to the message of the request that receives to the portable terminal authentication;
Determining unit is used for after receiving the message of described request to the portable terminal authentication, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of the determined SFF of described determining unit is sent to described portable terminal.
Signaling forwarding capability entity selection network element directly obtains the information that is used for determining SFF from the network of the current access of portable terminal in the embodiment of the invention, do not need mobile terminal reporting BS information, promptly do not need portable terminal and existing network to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
Signaling forwarding capability entity selection network element is after the message of SFF is subscribed in the triggering that the network that receives the current access of portable terminal sends in the embodiment of the invention, do not need the request of portable terminal, just will be the SFF notice portable terminal of portable terminal service, and make portable terminal can in time be known as the own SFF that serves.
AAA server is in the authorization phase of portable terminal in the embodiment of the invention, to be the SFF notice portable terminal of portable terminal service, do not need mobile terminal reporting BS information, promptly do not need portable terminal and existing network to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the WiMAX network structure;
Fig. 2 is a WiFi-WiMAX intercommunication network structure chart;
Fig. 3 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention one provides;
Fig. 4 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention two provides;
Fig. 5 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention three provides;
Fig. 6 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention four provides;
Fig. 7 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention five provides;
Fig. 8 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention six provides;
Fig. 9 is the method flow diagram that obtains signaling forwarding capability entity information that the embodiment of the invention seven provides;
Figure 10 is the structure drawing of device that obtains signaling forwarding capability entity information that the embodiment of the invention eight provides;
Figure 11 is the structure drawing of device that obtains signaling forwarding capability entity information that the embodiment of the invention nine provides;
Figure 12 is the structure drawing of device that obtains signaling forwarding capability entity information that the embodiment of the invention ten provides.
Embodiment
In order to improve user experience, need intercommunication between WiMAX network and the non-WiMAX network, such as intercommunication between WiMAX network and the WiFi network, wherein, WiFi-WiMAX intercommunication network structure chart is as shown in Figure 2.Wherein, when portable terminal is supported Single Radio intercommunication, when switching to the WiMAX Access Network by the WiFi Access Network, since before switching portable terminal still with the AP wireless connections of WiFi, and can not be connected to the BS of WiMAX simultaneously, thereby before switching to the BS of WiMAX, micro-wave access global inter communication access network signaling forwarding capability entity (WiMAX Signal ForwardingFunction, WiMAX SFF) assists portable terminal to carry out switching preparations such as pre-authentication by the WiFi access network.When portable terminal switches to the WiFi Access Network by the WiMAX Access Network, wireless fidelity network signaling forwarding capability entity (WiFi Signal Forwarding Function, WiFi SFF) assists portable terminal to carry out switching preparations such as pre-authentication by the WiMAX Access Network.The embodiment of the invention need will be the SFF notice portable terminal of portable terminal service, so that this SFF helps portable terminal to carry out switching preparations such as pre-authentication before portable terminal switches to objective network.Need to prove that the embodiment of the invention is not only applicable to portable terminal to be switched between WiMAX network and WiFi network, as long as switch between dissimilar access networks, the technical scheme that the embodiment of the invention provides all is suitable for.
Before switching to objective network at portable terminal, to be the SFF notice portable terminal of portable terminal service, so that this SFF helps portable terminal to carry out switching preparations such as pre-authentication, the embodiment of the invention has been introduced signaling forwarding capability entity selection network element, this signaling forwarding capability entity selection network element can be access network discovery and selection function (Access Network Discovery and Selection Function, ANDSF) server or Access Network and interconnection entity discovery feature (Access Network andInterworking entity Discovery Function, ANIDF) server or information server (Information Server, IS), do not influence the realization of the embodiment of the invention.Wherein, the ANDSF server is mainly used in the discovery and the selection of the access network between heterogeneous network, at present the ANDSF server can provide two category informations to terminal: mobility policy information and access network discovery information that heterogeneous network switches, wherein, access network discovery information comprises the network type that exists around the portable terminal, the position of portable terminal etc., the mobility policy information that heterogeneous network switches comprises the network that portable terminal can insert, and the priority of the ability of switching between network, access etc.The embodiment of the invention is that example is described with the ANDSF server, function to the ANDSF server is expanded, utilize the ANDSF server to be defined as the SFF that to be switched portable terminal switches preparation, with the information notice portable terminal of this SFF, so that portable terminal utilizes this SFF to switch preparation.
Embodiment one:
Consult Fig. 3, the embodiment of the invention one provides a kind of method of obtaining signaling forwarding capability entity information, and this method comprises:
301, after the message of SFF is subscribed in the triggering of the network of the current access of signaling forwarding capability entity selection network element mobile terminal receive transmission, obtain the information that is used for determining SFF.
302,, be defined as the SFF of described portable terminal service according to the described information that is used for determining SFF.
303, the information with determined SFF sends to described portable terminal.
Wherein, the executive agent of this each step of method is a signaling forwarding capability entity selection network element, and this signaling forwarding capability entity selection network element is arranged in core net, and it can be ANDSF server or ANIDF server or IS.
Wherein, the network at the current place of portable terminal sends triggering and subscribes to the message of SFF to the transmission when some network events take place of signaling forwarding capability entity selection network element.Such as: when portable terminal when the idle state enters the active state, ASN GW detects portable terminal and enters the active state from the idle state, send the message that the notice portable terminal enters the active state from the idle state to signaling forwarding capability entity selection network element, this message belongs to trigger subscribes to SFF; Perhaps, when portable terminal entered new paging zone, the paging location register in the network sent the message of the new location information carry portable terminal to signaling forwarding capability entity selection network element, and this message belongs to trigger subscribes to SFF.
Need to prove that the SFF in the embodiment of the invention and the subsequent embodiment is used to assist portable terminal to carry out switching preparation by the network of current connection before optimization switches to objective network.
When the embodiment of the invention one signaling forwarding capability entity selection network element takes place at predetermined network event, as long as receive the message that SFF is subscribed in the triggering of the network transmission at the current place of portable terminal, the request that does not need portable terminal just will be the SFF notice portable terminal of portable terminal service, make portable terminal in time be known as the own SFF that serves.
Embodiment two:
Consult Fig. 4, the embodiment of the invention two provides a kind of method of obtaining signaling forwarding capability entity information, and this method comprises:
401, signaling forwarding capability entity selection network element obtains to be used for determining the information of SFF from the network of the current access of portable terminal, described being used for determines that the information of SFF comprises: the SFF information of the network location information of described portable terminal or permission user use, wherein, described user is the user on the portable terminal.
402,, be defined as the SFF of described portable terminal service according to the described information that is used for determining SFF.
403, will send to described portable terminal for the information of the SFF of described portable terminal service.
Wherein, the executive agent of this each step of method is a signaling forwarding capability entity selection network element, and this signaling forwarding capability entity selection network element is arranged in core net, and this signaling forwarding capability entity selection network element can be ANDSF server or ANIDF server.
The embodiment of the invention two signaling forwarding capability entity selection network elements directly obtain the information that is used for determining SFF from the network at the current place of portable terminal, do not need mobile terminal reporting BS information, promptly do not need the current place of portable terminal and portable terminal network to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
Embodiment three:
Consult Fig. 5, the embodiment of the invention three provides a kind of method of obtaining signaling forwarding capability entity information, and in this method, the ANDSF server is operated in the Push pattern, network event triggers the ANDSF server and initiatively issues SFF information for portable terminal, and this method specifically comprises:
When 501, the network event of being scheduled to takes place, the ANDSF server receives the triggering message of access network (AN1) transmission at the current place of portable terminal, this triggering message is to trigger the message of subscribing to SFF, the ANDSF server is according to the triggering message that receives, determine and to send SFF information for portable terminal, wherein, carry in the triggering message that is received: the network location information that portable terminal is new.
Need to prove: the ANDSF server can be operated in Push pattern or Pull pattern, when the ANDSF server is operated in the Push pattern, the ANDSF server can pre-configured trigger, and this trigger is used for when receiving the message that triggering that AN1 sends subscribes to SFF (when the trigger condition of trigger satisfies) will be handed down to portable terminal for the information of the SFF of portable terminal service; When the ANDSF server was operated in the Pull pattern, the ANDSF server received after the message of the request SFF information that portable terminal sends information with SFF and is handed down to portable terminal.The ANDSF server is operated in the Push pattern in the embodiment of the invention.
Need to prove, may not carry the network location information of portable terminal in the triggering message that in this step, receives, such as triggering message only is a message of carrying SFF request indication, perhaps notify portable terminal to enter the message of active state from the idle state, then the ANDSF server can be from the network location information of this portable terminal of mobile terminal request, perhaps the network location information of this portable terminal of network element request from AN1.
Need illustrate, network event predetermined in this step can be that portable terminal enters the active state from the idle state, this moment, ASN GW sent the notice portable terminal enters the active state from the idle state message to the ANDSF server, this message belongs to the message that triggers subscription SFF, and portable terminal enters the active state from the idle state and belongs to the condition that trigger triggers.Predetermined network event can also be that portable terminal enters new paging zone, at this moment, paging location register in the network sends the message of the new location information of carrying portable terminal to the ANDSF server, this message belongs to the message that triggers subscription SFF, and the portable terminal occurrence positions upgrades the condition that trigger triggers that belongs to.
502, the ANDSF server is determined the pairing SFF of network location information of this portable terminal according to the network location information of the portable terminal that prestores and the corresponding relation of SFF, and wherein, this SFF is the SFF of this portable terminal service.
Wherein, the network location information of portable terminal can be the positional information of portable terminal in current access network (AN1), portable terminal in to be switched access network (AN2) positional information and the physical coordinates of the current position of portable terminal at least a.
503, the ANDSF server sends to portable terminal with the information of determined SFF.Wherein, SFF information comprises address or the SFF domain name of SFF.
In this step, the ANDSF server also can send to portable terminal with the network information around the portable terminal, makes portable terminal when not knowing own present position and wireless signal on every side, can in time be known as the SFF and the network information on every side of oneself serving.
Need to prove, in the step 502 if during the corresponding a plurality of SFF of the network location information of portable terminal, then need the access technology of considering that portable terminal is current, the network type that portable terminal is to be switched, the service range of SFF, network type that SFF supports and the information such as load of SFF, the SFF that selects a SFF to serve as portable terminal, then information that will this selected SFF in the step 503 sends to portable terminal.
504, the network switching that spans into type is carried out in the decision of the network at portable terminal and current place thereof, and portable terminal sends injection to SFF and optimizes handover preparation request frequently according to the SFF information that receives.
505, SFF assists portable terminal by the collaborative preparation of switching of the network element in AN1 network and the AN2 network.
506, after portable terminal knows that switching preparation finishes, AN2 will eat dishes without rice or wine to switch to.
507, portable terminal carries out the network re-entry operation, and foundation is connected with AN2's.
When the embodiment of the invention three takes place at predetermined network event, do not need the request of portable terminal, just according to the network location information that triggers portable terminal in the message, be defined as the SFF of portable terminal service and notify portable terminal, make portable terminal when the wireless signal of not knowing around own, can in time be known as the own SFF that serves; Further, make portable terminal when the wireless signal of not knowing around own, can in time know the network information around own.
Need to prove, network event triggers the ANDSF server initiatively also can comprise following situation for portable terminal issues SFF information: when user's CAMEL-Subscription-Information changes, authentication, the information of the SFF that mandate and accounting server can use permission user after changing sends to the ANDSF server, allow the information-change of the SFF that the user uses this moment is the trigger condition of trigger, this message of carrying the SFF information that allows user's use is for triggering the message of subscribing to SFF, the ANDSF server is considered the service range of the SFF that permission user after changing uses, the network type of supporting, loading condition etc., be defined as the SFF of portable terminal service, the information of determined SFF for the portable terminal service is handed down to portable terminal.
Embodiment four:
Consult Fig. 6, the embodiment of the invention four provides a kind of method of obtaining signaling forwarding capability entity information, the positional information of the network element request portable terminal of ANDSF server in the access network of source in this method, the ANDSF server is operated in the Pull pattern, and this method specifically comprises:
601, portable terminal sends the message of asking SFF to the ANDSF server, and wherein, the message of request SFF can be the message of redetermination, also can adopt existing ANDSF message, such as access network discovery request, position updating request etc.
602, after the ANDSF server received the message of request SFF, the network element in the access network AN1 at the current place of portable terminal sent location request message.
When the access network AN1 at the current place of portable terminal is the WiMAX network, the network element among the AN1 can be location-server (Location Server, LS) or ASN-GW; When the access network AN1 at the current place of portable terminal is the WiFi network, the network element among the AN1 can be access controller (AccessController, AC); When the access network AN1 at the current place of portable terminal is the 3GPP network, network element among the AN1 can be GPRS serving GPRS support node (Serving GPRS SupportNode, SGSN) or the GPRS gateway support node (Gateway GPRS SupportingNode, GGSN).
603, the network element among the AN1 sends the position response message to the ANDSF server, carries the network location information of portable terminal in this position response message.
Wherein, the network location information of portable terminal can be portable terminal in current access network (AN1) positional information and the physical coordinates of the current position of portable terminal at least a.
Wherein, if access network is the WiMAX network, then the positional information of portable terminal in access network can be base station identifier (Base Station Identity, BSID) or Network Access Provider sign (Network Access Provider Identity, NAPID); If access network is the WiFi network, then the positional information of portable terminal in access network can be basic service set identifier (Basic Service SetIdentity, BSSID) or Access Point Identifier (Access Point Identity, APID) or access controller identifier (Access Controller Identity, ACID), if access network is the 3GPP network, then the positional information of portable terminal in access network can be cell ID (cellID), Base Station Identification (NodeB ID) or sector mark (Sector ID).
604, the ANDSF server is determined the pairing SFF of network location information of portable terminal according to the network location information of the portable terminal that prestores and the corresponding relation of SFF, and this SFF is the SFF for this portable terminal service that the ANDSF server is determined.
605, the ANDSF server sends response message to portable terminal, carries the information of determined SFF in the response message.Wherein, SFF information comprises address or the SFF domain name of SFF
Need to prove: in the step 604, if during the corresponding a plurality of SFF of the network location information of portable terminal, then need the access technology of considering that portable terminal is current, the network type that portable terminal is to be switched, the service range of SFF, network type that SFF supports and the information such as load of SFF are selected the SFF of a SFF as the portable terminal service, then send the information of this selected SFF in the step 605.
606, the network switching that spans into type is carried out in the decision of the network at portable terminal and current place thereof, and portable terminal sends injection to SFF and optimizes handover preparation request frequently according to the information of the SFF that receives.
607, SFF assists portable terminal by the collaborative preparation of switching of the network element in AN1 network and the AN2 network.
608, after portable terminal knows that switching preparation finishes, AN2 will eat dishes without rice or wine to switch to.
609, portable terminal carries out the network re-entry operation, and foundation is connected with AN2's.
The network location information of the network element request portable terminal of ANDSF server from the access network AN1 of source in the embodiment of the invention four, utilize the network location information of portable terminal and the corresponding relation of SFF, be defined as the SFF of portable terminal service and notify portable terminal, portable terminal is known to help and self carried out the SFF that pre-authentication etc. is switched preparations, so that portable terminal utilizes this SFF to switch preparation.
Embodiment five:
Consult Fig. 7, the embodiment of the invention five provides a kind of method of obtaining signaling forwarding capability entity information, the ANDSF server can be operated in the Pull pattern in this method, also can be operated in the Push pattern, obtain the SFF information that allows the user to use in the user signing contract information that the ANDSF server is preserved from AAA server, it is example that following embodiment is operated in the Pull pattern with the ANDSF server, and this method specifically comprises:
701, portable terminal sends the message of asking SFF to the ANDSF server, and wherein, the message of request SFF can be the message of redetermination, also can adopt existing ANDSF message, such as access network discovery request, position updating request etc.
702, after the ANDSF server is received the message of request SFF, send the CAMEL-Subscription-Information request message to AAA server.
703, AAA server obtains the information of the SFF of permission user use from user signing contract information, sends signatory response message to the ANDSF server, carries the information of the SFF that allows user's use in this signatory response message.
704, the ANDSF server is defined as the SFF of portable terminal service according to the SFF information of local record and allow the information of the SFF that the user uses.
Wherein, the SFF information of local record comprises: network side allows address or the domain name of the SFF of portable terminal use, also comprises the service range of SFF, network type, the selection priority of SFF and the loading condition of SFF etc. that SFF supports.
The ANDSF server is according to the SFF information of local record and allow the information of the SFF that the user uses in this step, and the SFF that is defined as the portable terminal service can realize in the following way: search and not only belong to network side and allow the SFF that portable terminal uses but also belong to SFF the SFF information that the permission user that obtains from AAA server uses.
705, the ANDSF server sends the information of determined SFF to portable terminal, and wherein, SFF information comprises the address of SFF or the domain name of SFF.
706, the network switching that spans into type is carried out in the decision of the network at portable terminal and current place thereof, and portable terminal sends injection to SFF and optimizes handover preparation request frequently according to the information of the SFF that receives.
707, SFF assists portable terminal by the collaborative preparation of switching of the network element in AN1 network and the AN2 network.
708, after portable terminal knows that switching preparation finishes, AN2 will eat dishes without rice or wine to switch to.
709, portable terminal carries out the network re-entry operation, and foundation is connected with AN2's.
The AAA server of the embodiment of the invention five from the network at the current place of portable terminal obtains the information of the SFF that allows user's use, according to the information of the SFF that allows the user to use and the SFF information of local record, be defined as the SFF of portable terminal service, do not need mobile terminal reporting BS information, promptly do not need the network at portable terminal and current place to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
Embodiment six:
Consult Fig. 8, the embodiment of the invention six provides a kind of method of obtaining signaling forwarding capability entity information, the ANDSF server can be operated in the Pull pattern in this method, also can be operated in the Push pattern, be that with the various embodiments described above difference ANDSF can issue the information of a plurality of SFF to portable terminal, select suitable SFF to be optimized switching preparation by mobile terminal self, it is example that following embodiment is operated in the Pull pattern with the ANDSF server, and this method specifically comprises:
801, portable terminal sends the message of asking SFF to the ANDSF server, and wherein, the message of request SFF can be the message of redetermination, also can adopt existing ANDSF message, such as access network discovery request, position updating request etc.Wherein, carry the network location information of portable terminal in the message of request SFF.
802, the ANDSF server is determined the corresponding a plurality of SFF of network location information of portable terminal according to the network location information of the portable terminal that prestores and the corresponding relation of SFF, promptly has a plurality of SFF can be this portable terminal service.
803, the ANDSF server sends response message to portable terminal, carries the information of a plurality of SFF in this response message, so that a plurality of information that can be the SFF of portable terminal service are offered portable terminal.
The information of SFF is except the domain name of the address that comprises SFF or SFF in this step, can also comprise in the loading condition of the service range of network type that the selection priority, SFF of SFF is suitable for, SFF and SFF at least a so that the subsequent movement terminal is selected SFF.
804, portable terminal is selected a SFF according to the information of a plurality of SFF of pre-configured SFF information table and reception.
This step selects SFF to realize in the following way: search and not only belong to that the ANDSF server provides but also belong to SFF in the pre-configured SFF information table, if only find a SFF, then send the radio frequency optimization handover preparation request to this SFF in the step 805.If find a plurality of SFF, then, determine a SFF according to the selection priority of SFF, network type, the service range of SFF and the information such as loading condition of SFF that SFF is suitable for.If not only do not belonged to that the ANDSF server provides but also belonged to SFF in the pre-configured SFF information table, then in a plurality of SFF that the ANDSF server provides, select high priority and support the SFF of to be switched network type.
805, the network switching that spans into type is carried out in the decision of the network at portable terminal and current place thereof, and portable terminal sends injection to selected SFF and optimizes handover preparation request frequently.
806, SFF assists portable terminal by the collaborative preparation of switching of the network element in AN1 network and the AN2 network.
807, after portable terminal knows that switching preparation finishes, AN2 will eat dishes without rice or wine to switch to.
808, portable terminal carries out the network re-entry operation, and foundation is connected with AN2's.
The ANDSF server can issue a plurality of SFF information and select a SFF for mobile terminal self in the embodiment of the invention six.
Embodiment seven:
Consult Fig. 9, the embodiment of the invention seven provides a kind of method of obtaining signaling forwarding capability entity information, at the network authentication authorization stages of portable terminal, can send to portable terminal for the SFF information of this portable terminal service in this method, and this method specifically comprises:
901, when portable terminal networks first or need re-authenticate, the authentication device (Authenticator) of portable terminal in AN1 sends authentication request, in authentication request, can carry SFF request indication, optionally, in authentication request, carry the network location information of portable terminal.
902, the authentication device among the AN1 carries out authentication to portable terminal, and in authentication process, the SFF information that the permission user who writes down in the CAMEL-Subscription-Information of AAA server according to the user uses and the SFF information of local record are selected a SFF.
Wherein, the SFF information of local record comprises SFF address or the domain name that network side allows portable terminal to use at least, can also comprise: network side allows the service range of the SFF of portable terminal use, network type, the selection priority of SFF and the loading condition of SFF etc. that SFF supports.
Wherein, AAA server selects the SFF specifically can be in the following way: search not only to belong to and allow the SFF that the user uses but also be the SFF that network side allows portable terminal to use, if only find a SFF, the information of carrying this SFF among the Certificate Authority result in the subsequent step 903 then; If find a plurality ofly, then network type, the service range of SFF and the information such as loading condition of SFF that is suitable for according to the selection priority of SFF, SFF is determined a SFF.
Can select, AAA server can be selected a SFF according to the SFF information of the network location information and the local record of portable terminal in this step.
Perhaps, AAA server allows the SFF information of using, the network location information of portable terminal and the SFF information of local record according to the user, selects a SFF.
903, the authentication device of AAA server in AN1 sends Certificate Authority result, the information of carrying selected SFF among this Certificate Authority result.Authentication device among the AN1 sends authenticating result to portable terminal, carries the information of selected SFF in this authenticating result, and wherein, the information of SFF comprises the address of SFF or the domain name of SFF.
904, the network switching that spans into type is carried out in the decision of the network at portable terminal and current place thereof, and portable terminal sends injection to this SFF and optimizes handover preparation request frequently.
905, SFF assists portable terminal by the collaborative preparation of switching of the network element in AN1 network and the AN2 network.
906, after portable terminal knows that switching preparation finishes, AN2 will eat dishes without rice or wine to switch to.
907, portable terminal carries out the network re-entry operation, and foundation is connected with AN2's.
The embodiment of the invention seven will be the SFF notice portable terminal of portable terminal service in the authorization phase of portable terminal, and the information of carrying this SFF in the authenticating result that sends to portable terminal, save signaling.
Need to prove: among each embodiment of the foregoing description two to embodiment five, the ANDSF server can issue a plurality of SFF information and select SFF for mobile terminal self, and its portable terminal selects the mode of SFF similar to step 805, does not repeat them here.
Need to prove, the AAA server that various embodiments of the present invention are mentioned, in different networks, corresponding to the different network elements that is used for authentication, in the WiMAX network, refer to authentication, mandate and charging (Authentication, Authorization, Accounting, AAA) server, in the 3GPP network, aim belongs to location register (Home Location Register, HLR) or home subscriber server (Home Subscriber Service, HSS).
Embodiment eight:
Consult Figure 10, the embodiment of the invention eight provides a kind of device that obtains signaling forwarding capability entity information, and this device can be positioned on the signaling forwarding capability entity selection network element, and this device comprises:
Acquiring unit 1001 is used for obtaining to be used for determining from the network of the current access of portable terminal the information of SFF;
Determining unit 1002 is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element 1003 is used for the information of determined SFF is sent to described portable terminal.
Wherein, the information that is used for definite SFF comprises the network location information of portable terminal, and this moment, acquiring unit 1001 obtained the network location information of described portable terminal from the network element of the current place of portable terminal access network.
Perhaps, be used for determining that the information of SFF comprises the SFF information that allows the user to use; This moment, acquiring unit 1001 obtained the SFF information that described permission user uses from the user signing contract information that AAA server is preserved, and described user is the user on the described portable terminal.
The device that obtains signaling forwarding capability entity information in the embodiment of the invention eight directly obtains the information that is used for determining SFF from the network of the current access of portable terminal, do not need mobile terminal reporting BS information, promptly do not need portable terminal and existing network to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
Embodiment nine:
Consult Figure 11, the embodiment of the invention nine provides a kind of device that obtains signaling forwarding capability entity information, and this device can be positioned on the signaling forwarding capability entity selection network element, and this device comprises:
Receiving element 1101 is used for the message that SFF is subscribed in triggering that the network of the current access of mobile terminal receive sends;
Acquiring unit 1102 is used for obtaining the information that is used for determining SFF after described receiving element receives the message that triggers subscription SFF;
Determining unit 1103 is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element 1104 is used for the information of the determined SFF of described determining unit is sent to described portable terminal.
Concrete, receiving element 1101 is used for the message that SFF is subscribed in triggering that the network element of the current place of mobile terminal receive access network sends, and the network location information that carries portable terminal in the message of SFF is subscribed in described triggering; The described information that is used for definite SFF comprises the network location information of described portable terminal; Perhaps, receiving element 1101, be used to receive the message that SFF is subscribed in triggering that AAA server sends, described triggering is subscribed in the message of SFF and is carried the SFF information that allows the user to use, and describedly is used for determining that the information of SFF comprises the SFF information that described permission user uses.
Perhaps, after acquiring unit 1102 receives the message that triggers subscription SFF at receiving element 1101, network location information from the described portable terminal of mobile terminal request, perhaps, network location information from the network element request portable terminal of the current place of portable terminal access network, perhaps, the SFF information that allows the user to use from the AAA server request.
The device that obtains signaling forwarding capability entity information that the embodiment of the invention nine provides is after the message of SFF is subscribed in the triggering that the network that receives the current access of portable terminal sends, do not need the request of portable terminal, just will be the SFF notice portable terminal of portable terminal service, and make portable terminal can in time be known as the own SFF that serves.
Embodiment ten:
Consult Figure 12, the embodiment of the invention ten provides a kind of device that obtains signaling forwarding capability entity information, and this device can be positioned on the AAA server, and this device comprises:
Receiving element 1201 is used to the message of the request that receives to the portable terminal authentication;
Determining unit 1202 is used for after receiving the message of described request to the portable terminal authentication, is defined as the SFF of described portable terminal service;
Transmitting element 1203 is used for the information of described determining unit 1202 determined SFF is sent to described portable terminal.
The device that obtains signaling forwarding capability entity information that the embodiment of the invention ten provides is in the authorization phase of portable terminal, to be the SFF notice portable terminal of portable terminal service, do not need mobile terminal reporting BS information, promptly do not need portable terminal and existing network to carry out information interaction and obtained BS information, shorten the portable terminal time delay for switching, improved network processes efficient.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, read-only memory for example, disk or CD etc.
More than the method for obtaining signaling forwarding capability entity information, Apparatus and system that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (19)
1. a method of obtaining signaling forwarding capability entity SFF information is characterized in that, comprising:
Signaling forwarding capability entity selection network element obtains to be used for determining the information of SFF from the network of the current access of portable terminal;
According to the described information that is used for determining SFF, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
2. method according to claim 1 is characterized in that,
The described information that is used for definite SFF comprises: the network location information of described portable terminal; Described according to the described information that is used for determining SFF, the SFF that is defined as described portable terminal service comprises: according to the network location information of the described portable terminal that prestores and the corresponding relation of SFF, be defined as the SFF of described portable terminal service;
Perhaps, described being used for determines that the information of SFF comprises: the SFF information of permission user use, and described user is the user on the described portable terminal; Described according to the described information that is used for determining SFF, the SFF that is defined as described portable terminal service comprises: according to the SFF information of described permission user use and the SFF information of local record, be defined as the SFF of described portable terminal service; Wherein, the SFF information of described local record comprises at least: network side allows address or the domain name of the SFF of portable terminal use.
3. method according to claim 1 is characterized in that,
The described information that is used for definite SFF comprises: the network location information of portable terminal;
The described acquisition from the network of the current access of portable terminal is used for determining that the information of SFF comprises: the network location information that obtains described portable terminal from the network element of the current place of portable terminal access network;
Perhaps,
Described being used for determines that the information of SFF comprises: the SFF information of permission user use, and described user is the user on the described portable terminal; The described acquisition from the network of the current access of portable terminal is used for determining that the information of SFF comprises: the user signing contract information of preserving from AAA server obtains the SFF information that described permission user uses.
4. method according to claim 1 is characterized in that,
When comprising a plurality of SFF for the SFF of portable terminal service, after the information with determined SFF sent to described portable terminal, this method also comprised when determined:
Described portable terminal is selected a SFF according to the information of a plurality of SFF that receive, and the information of the SFF that described portable terminal receives comprises at least: address or the domain name of the determined SFF that serves for portable terminal of signaling forwarding capability entity selection network element.
5. method according to claim 4 is characterized in that,
Described portable terminal selects a SFF to be specially according to the information of a plurality of SFF that receive:
Described portable terminal is according to the information of a plurality of SFF that receive and pre-configured SFF information table, select a SFF, selected SFF be signaling forwarding capability entity selection network element determined for the SFF of portable terminal service be again SFF in the pre-configured SFF information table.
6. a method of obtaining signaling forwarding capability entity SFF information is characterized in that, comprising:
After the message of SFF is subscribed in the triggering that the network of the current access of signaling forwarding capability entity selection network element mobile terminal receive sends, obtain the information that is used for determining SFF, according to the described information that is used for determining SFF, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
7. method according to claim 6 is characterized in that,
The message that SFF is subscribed in the triggering that the network of the current access of described mobile terminal receive sends is specially:
The message of SFF is subscribed in the triggering that the network element of the current place of mobile terminal receive access network sends, and carries the network location information of portable terminal in the message of described triggering subscription SFF; The described information that is used for definite SFF comprises the network location information of described portable terminal;
Perhaps, receive the message of the triggering subscription SFF of AAA server transmission, carry the SFF information that allows the user to use in the message of described triggering subscription SFF, the described information that is used for definite SFF comprises the SFF information of the described user of permission use.
8. method according to claim 6 is characterized in that,
Described obtaining is used for determining that the information of SFF comprises:
Obtain the network location information of described portable terminal from portable terminal;
Perhaps, obtain the network location information of described portable terminal from the network element of the current place of portable terminal access network;
Perhaps, obtain the SFF information that allows the user to use from AAA server.
9. method according to claim 6 is characterized in that,
The described information that is used for definite SFF comprises: the network location information of described portable terminal; Described according to the described information that is used for determining SFF, the SFF that is defined as described portable terminal service comprises: according to the network location information of the described portable terminal that prestores and the corresponding relation of SFF, be defined as the SFF of described portable terminal service;
Perhaps, described being used for determines that the information of SFF comprises: the SFF information of permission user use, and described user is the user on the described portable terminal; Described according to the described information that is used for determining SFF, the SFF that is defined as described portable terminal service comprises: according to the SFF information of described permission user use and the SFF information of local record, be defined as the SFF of described portable terminal service; Wherein, the SFF information of described local record comprises at least: network side allows address or the domain name of the SFF of portable terminal use.
10. method according to claim 6 is characterized in that,
When comprising a plurality of SFF for the SFF of portable terminal service, after the information with determined SFF sent to described portable terminal, this method also comprised when determined:
Described portable terminal is selected a SFF according to the information of a plurality of SFF that receive, and the information of the SFF that described portable terminal receives comprises at least: address or the domain name of the determined SFF that serves for portable terminal of signaling forwarding capability entity selection network element.
11. method according to claim 10 is characterized in that,
Described portable terminal selects a SFF to be specially according to the information of a plurality of SFF that receive:
Described portable terminal is according to the information of a plurality of SFF that receive and pre-configured SFF information table, select a SFF, selected SFF be signaling forwarding capability entity selection network element determined for the SFF of portable terminal service be again SFF in the pre-configured SFF information table.
12. a method of obtaining signaling forwarding capability entity information is characterized in that, comprising:
After AAA server receives the message of request to the portable terminal authentication, be defined as the SFF of described portable terminal service, the information of determined SFF is sent to described portable terminal.
13. method according to claim 12 is characterized in that,
The described SFF that is defined as described portable terminal service comprises:
From the user signing contract information of preservation, obtain to allow the SFF information of user's use,, be defined as the SFF of described portable terminal service according to the SFF information of described permission user use and the SFF information of local record; Wherein, the SFF information of described local record comprises at least: network side allows address or the domain name of the SFF of portable terminal use, and described user is the user on the described portable terminal.
14. a signaling forwarding capability entity selection device is characterized in that, comprising:
Acquiring unit is used for obtaining to be used for determining from the network of the current access of portable terminal the information of SFF;
Determining unit is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of determined SFF is sent to described portable terminal.
15. device according to claim 14 is characterized in that,
The described information that is used for definite SFF comprises the network location information of portable terminal,
Described acquiring unit is used for obtaining from the network element of the current place of portable terminal access network the network location information of described portable terminal;
Perhaps,
The described information that is used for definite SFF comprises the SFF information that allows the user to use;
Described acquiring unit is used for obtaining the SFF information that described permission user uses from the user signing contract information that AAA server is preserved, and described user is the user on the described portable terminal.
16. a signaling forwarding capability entity selection device is characterized in that, comprising:
Receiving element is used for the message that SFF is subscribed in triggering that the network of the current access of mobile terminal receive sends;
Acquiring unit is used for obtaining the information that is used for determining SFF after described receiving element receives the message that triggers subscription SFF;
Determining unit is used for the information that is used for determining SFF according to described, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of the determined SFF of described determining unit is sent to described portable terminal.
17. device according to claim 16 is characterized in that,
Described receiving element is used for the message that SFF is subscribed in triggering that the network element of the current place of mobile terminal receive access network sends, and the network location information that carries portable terminal in the message of SFF is subscribed in described triggering; The described information that is used for definite SFF comprises the network location information of described portable terminal;
Perhaps, described receiving element, be used to receive the message that SFF is subscribed in triggering that AAA server sends, described triggering is subscribed in the message of SFF and is carried the SFF information that allows the user to use, and describedly is used for determining that the information of SFF comprises the SFF information that described permission user uses.
18. device according to claim 16 is characterized in that,
Described acquiring unit, be used for after described receiving element receives the message that triggers subscription SFF, obtain the network location information of described portable terminal from portable terminal, perhaps, obtain the network location information of portable terminal from the network element of the current place of portable terminal access network, perhaps, obtain the SFF information that allows the user to use from AAA server.
19. a signaling forwarding capability entity selection device is characterized in that, comprising:
Receiving element is used to the message of the request that receives to the portable terminal authentication;
Determining unit is used for after receiving the message of described request to the portable terminal authentication, is defined as the SFF of described portable terminal service;
Transmitting element is used for the information of the determined SFF of described determining unit is sent to described portable terminal.
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| PCT/CN2010/075063 WO2011003356A1 (en) | 2009-07-08 | 2010-07-08 | Method and apparatus for acquiring information about signaling forwarding function |
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