CN104717719B - Access network selection method and system and ANDSF equipment - Google Patents
Access network selection method and system and ANDSF equipment Download PDFInfo
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- CN104717719B CN104717719B CN201310682956.XA CN201310682956A CN104717719B CN 104717719 B CN104717719 B CN 104717719B CN 201310682956 A CN201310682956 A CN 201310682956A CN 104717719 B CN104717719 B CN 104717719B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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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
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Abstract
The invention discloses a kind of access network selection method and system and ANDSF equipment, are related to intelligent pipeline field.This method includes：ANDSF equipment receives the user identifier that PCRF equipment sends, application identities, user location and is currently accessed type；ANDSF equipment is that user selects access network type according to application identities and user location, if the access network type of selection is currently accessed Type-Inconsistencies with user, to the user identifier, corresponding user sends a notification message, and access network selection flow is initiated to trigger user；ANDSF equipment is asked in response to the access network selection that user sends, and access network selection response is returned to indicate the access network type of selection, so that user switches to the access net of ANDSF equipment instruction to user.The present invention is by network-aware application and reports ANDSF equipment, different access nets is selected according to application identities by ANDSF equipment, a kind of access network selection scheme based on application is realized, so as to be that user selects most suitable access way according to specific service conditions.
Description
Technical field
The present invention relates to intelligent pipeline field, more particularly to a kind of access network selection method and system and ANDSF
（Access Network Discovery and Selection Function, access network discovery and selection function）Equipment.
Background technology
Third generation partner program（3rd Generation Partnership Project, 3GPP）The grouping of evolution
System（Evolved Packet System, EPS）By the Universal Mobile Communication System land radio access web of evolution（Evolved
Universal Terrestrial Radio Access Network, E-UTRAN）, mobile management unit（Mobility
Management Entity, MME）, gateway（Serving Gateway, S-GW）, grouped data network gateway（Packet
Data Network Gateway, P-GW PDN GW）, home subscriber server（Home Subscriber Server,
HSS）, 3GPP authentication and authorization charging（Authentication, Authorization and Accounting, AAA）Service
Device, "Policy and Charging Rules Function（Policy and Charging Rules Function, PCRF）Entity and other supports
Node forms.EPS supports the intercommunication with 3GPP and non-3 GPP system, wherein the intercommunication with non-3 GPP system is connect by S2a/b/c
Cause for gossip is existing, and P-GW is as the anchor point between 3GPP and non-3 GPP system.
When user uses the packet-based core networks of 3GPP accesses or non-3GPP access network connection evolution（Evolved
Packet Core, EPC）When using business or access internet, it may use to point-to-point（Point to
Point, P2P）The characteristics of business, these business is that connection number is big, and single connection data volume even entire throughput is little.It is right
In these business datums, operator may want to be shunted using non-3 GPP access.And when user carries out net using network
Go to bank the business such as access and the communication of device-to-device, and operator may want to this kind of business and be linked into core by 3GPP always
Heart net, to provide the service that more safety is more secure to the user.
Although 3GPP defines discoveries and selection of the ANDSF for carrying out access net under multi-network environment, for upper
The function that access network selection is carried out based on application is stated, 3GPP is not supported at present.
Invention content
A technical problem to be solved of the embodiment of the present invention is：It solves to carry out asking for access network selection based on application
Topic.
One side according to the ... of the embodiment of the present invention proposes a kind of access network selection method, including：Access network discovery and choosing
Select user identifier, application identities, user location that function ANDSF equipment receives the transmission of "Policy and Charging Rules Function PCRF equipment
Be currently accessed type；ANDSF equipment is user's selection access network type according to application identities and user location, if selection
Access network type is currently accessed Type-Inconsistencies with user, and to the user identifier, corresponding user sends a notification message, to touch
Initiate access network selection flow in hair family；ANDSF equipment is asked in response to the access network selection that user sends, and is returned and is connect to user
Networking Response to selection is to indicate the access network type of selection, so that user switches to the access net of ANDSF equipment instruction.
In one embodiment, ANDSF equipment receives the user identifier, application identities, user location of PCRF equipment transmission
Include with type is currently accessed：ANDSF equipment receives the session updates request that PCRF equipment is sent, wherein the session updates are asked
It asks including user identifier, application identities, user location and is currently accessed type.
In one embodiment, session updates request triggered by customer incident, wherein customer incident include application start,
Change using end or access style.
In one embodiment, PCRF equipment obtains application identities in the following manner：Strategy and charge execution function
PCEF equipment detects application identities, and application identities are sent to PCRF equipment；Alternatively, the detection of current detection functionality TDF equipment is answered
With mark, and application identities are sent to PCRF equipment；Alternatively, Application Function AF detects application identities, and mark will be applied
Knowledge is sent to PCRF equipment.
In one embodiment, ANDSF equipment is that user selects access network type packet according to application identities and user location
It includes：ANDSF equipment is that user selects access network type according to application identities, if there are the access net classes of selection at user location
Type determines and selects the access network type, if the access network type of selection is not present at user location, is selected for user other
Access network type.
Another aspect according to the ... of the embodiment of the present invention proposes a kind of access network discovery and selection function ANDSF equipment, packet
It includes：Receiving module, user identifier, application identities, Yong Huwei for receiving the transmission of "Policy and Charging Rules Function PCRF equipment
Set and be currently accessed type；Access network selection module, for being that user selects access net class according to application identities and user location
Type is sent logical if the access network type of selection is currently accessed Type-Inconsistencies with user to the corresponding user of the user identifier
Know message, access network selection flow is initiated to trigger user；And indicating module, the access net for being sent in response to user
Selection request returns to access network selection response to indicate the access network type of selection to user, is set so that user switches to ANDSF
The access net of standby instruction.
In one embodiment, receiving module is specifically used for receiving the session updates request that PCRF equipment is sent, wherein
Session updates request includes user identifier, application identities, user location and is currently accessed type.
In one embodiment, session updates request triggered by customer incident, wherein customer incident include application start,
Change using end or access style.
In one embodiment, access network selection module is specifically used for according to application identities being that user selects access net class
Type determines if there are the access network types of selection at user location and selects the access network type, if do not deposited at user location
In the access network type of selection, other access network types are selected for user.
Another aspect according to the ... of the embodiment of the present invention proposes that a kind of access network selection system, the system include：It is above-mentioned
ANDSF equipment and PCRF equipment；PCRF equipment is for obtaining application identities.The function of ANDSF equipment is with reference to aforementioned, here not
It repeats again.
In one embodiment, which further includes that strategy and charge execution function PCEF equipment, current detection functionality TDF are set
Standby or Application Function AF；Application identities are sent to PCRF equipment by PCEF equipment for detecting application identities；TDF
Application identities are sent to PCRF equipment by equipment for detecting application identities；AF will apply mark for detecting application identities
Knowledge is sent to PCRF equipment.
The present invention is by network-aware application and reports ANDSF equipment, is selected not according to application identities by ANDSF equipment
Same access net, realizes a kind of access network selection scheme based on application, so as to be to use according to specific service conditions
Family selects most suitable access way.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the network architecture reference view of the present invention.
Fig. 2 is that the present invention is based on the flow diagrams of one embodiment of the access network selection method of application.
Fig. 3 is that the present invention is based on the flow diagrams of the further embodiment of the access network selection method of application.
Fig. 4 is the present invention in PCEF（Built-in TDF）Detection application identities are simultaneously reported to PCRF, and PCRF is interacted with ANDSF, is referred to
Show that ANDSF carries out the access network selection flow diagram of access network selection.
Fig. 5 be the present invention TDF be used as the entity independently of PCEF, detection application simultaneously is reported to PCRF, PCRF and ANDSF
Interaction, instruction ANDSF carry out the access network selection flow diagram of access network selection.
Fig. 6 is that the present invention informs that PCRF applications start in AF, and PCRF is interacted with ANDSF, and instruction ANDSF carries out access net choosing
The access network selection flow diagram selected.
Fig. 7 is the structural schematic diagram of access network selection system one embodiment of the present invention.
Fig. 8 is the structural schematic diagram of ANDSF equipment one embodiment of the present invention.
Fig. 9 is the structural schematic diagram of access network selection system further embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of attached various pieces shown in the drawings is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
In order to solve the problems, such as to carry out access network selection based on application, the embodiment of the present invention is by network-aware application and reports
ANDSF equipment is accused, different access nets is selected according to application identities by ANDSF equipment, realizes a kind of connecing based on application
Networking selection scheme, so as to be that user selects most suitable access way according to specific service conditions.
Fig. 1 is the network architecture reference view of the present invention.
As shown in Figure 1, PCRF can respectively with PCEF（Policy and Charging Enforcement Function
Strategy and charge execution function）,TDF（Current detection functionality）And AF（Application Function）It is communicated.PCRF passes through with PCEF
Gx interfaces connect, and Gx sessions can be established between PCRF and PCEF.TDF can be built in PCEF, can also be used as independent reality
Body is individually present.The function of PCRF and ANDSF are enhanced, PCRF increases the sending module of access network selection parameter, ANDSF
Increase the receiving module of access network selection parameter, PCRF calls sending module by application identities, Yong Hubiao after obtaining application identities
Knowledge, user location are currently accessed the information such as type and issue ANDSF, and ANDSF calls receiving module to be responsible for receiving connecing from PCRF
Networking selection parameter, ANDSF are that terminal selects optimal access net according to these parameters.
Increase interactive interface between PCRF and ANDSF, for PCRF and ANDSF carry out user identifier, application identities and
Other are such as user location（Namely terminal location）, the information such as access style transmit.
One, interaction message is defined as follows between PCRF, ANDSF：
（1）Session establishment request message：It is reached the standard grade triggering by user, direction is PCRF to ANDSF, includes at least user's mark
The parameters such as knowledge, user location, access style.
（2）Session establishment response message：The response message of session establishment request, direction are ANDSF to PCRF.
（3）Session updates request message：Triggered by customer incident, for example, application start, using terminate, access style change
It is PCRF to ANDSF Deng, direction, including at least user identifier, user location, access style, event type, application identities etc..
（4）Session updates response message：The response message of session updates request.
（5）Conversation end request message：It is triggered by user offline, direction is PCRF to ANDSF.
（6）Conversation end response message：The response message of conversation end request.
Two, the message flow between PCRF and ANDSF is as follows：
（1）Session establishment flow
a）The Gx session establishments of user.
b）The session establishment that PCRF sends PCRF and ANDSF to ANDSF is asked, and by user identifier, user location, access
Type etc. issues ANDSF.
c）ANDSF sends PCRF to PCRF and is responded with ANDSF session establishments.
（2）Session updates flow
a）The Gx session updates of user.
b）The session updates that PCRF sends PCRF and ANDSF to ANDSF are asked, and by user identifier, user location, application
Mark（If there is）, access style etc. issue ANDSF.
c）ANDSF sends PCRF to PCRF and is responded with ANDSF session updates.
（3）Conversation end flow
a）User's Gx conversation ends.
b）The conversation end that PCRF sends PCRF and ANDSF to ANDSF is asked.
c）ANDSF sends PCRF to PCRF and is responded with ANDSF conversation ends.
Three, with reference to figure 2, a reference example of the access network selection flow based on application is as follows：
Step S201, PCRF initiation session establishment flow, establishes session between PCRF and ANDSF.
Step S202, PCRF receive the currently used application identities of user.
Step S203, PCRF send session updates request to ANDSF, and in the request by user identifier, application identities, use
Family position, access style etc. are sent to ANDSF.
Step S204, ANDSF send session updates response to PCRF.ANDSF is according to user identifier, application identities, user
The parameters such as position, access style select current most suitable access network type.
In one embodiment, ANDSF equipment is that user selects access network type according to application identities and user location, such as
The access network type of fruit selection is currently accessed Type-Inconsistencies with user, and to the user identifier, corresponding user sends a notification message
（Such as short message）, access network selection flow is initiated to trigger user.
In one embodiment, ANDSF equipment is that user selects access network type according to application identities, if user location
There are the access network types of selection at place, determine and select the access network type, if the access net of selection is not present at user location
Type selects other access network types for user.
Step S205 gives if access style used in the access network type of ANDSF selections and active user is inconsistent
User sends short message.
Step S206, user send access network selection request to ANDSF.
Step S207, ANDSF select current most suitable access network type to user, and are responded and led to by access network selection
Know user.User namely UE（User equipment）.
Step S208, user switch to the access net indicated by ANDSF.
Fig. 3 is the flow diagram of access network selection method one embodiment of the present invention.As shown in figure 3, the embodiment
Method includes the following steps：
Step S301, ANDSF equipment receives the user identifier that PCRF equipment sends, application identities, user location and current
Access style.
Step S302, ANDSF equipment is that user selects access network type according to application identities and user location, if selection
Access network type and user be currently accessed Type-Inconsistencies, to the user identifier, corresponding user sends a notification message, so as to
It triggers user and initiates access network selection flow.
Step S303, ANDSF equipment is asked in response to the access network selection that user sends, and access network selection is returned to user
Response is to indicate the access network type of selection, so that user switches to the access net of ANDSF equipment instruction.
In one embodiment, in step S301, ANDSF equipment receives the user identifier of PCRF equipment transmission, using mark
Know, user location and be currently accessed type and include：ANDSF equipment receives the session updates request that PCRF equipment is sent, wherein should
Session updates request includes user identifier, application identities, user location and is currently accessed type.
In one embodiment, session updates request triggered by customer incident, wherein customer incident include application start,
Change using end or access style.
In one embodiment, ANDSF equipment is that user selects access network type packet according to application identities and user location
It includes：ANDSF equipment is that user selects access network type according to application identities, if there are the access net classes of selection at user location
Type determines and selects the access network type, if the access network type of selection is not present at user location, is selected for user other
Access network type.
In one embodiment, PCRF equipment obtains application identities in the following manner：PCEF equipment detects application identities,
And application identities are sent to PCRF equipment, specifically can application identities be detected by TDF built-in in PCEF；Alternatively, TDF equipment
Application identities are detected as the equipment independently of PCEF, and application identities are sent to PCRF equipment；Alternatively, AF detection application marks
Know, and application identities are sent to PCRF equipment.
As can be seen that the service-aware point of the present invention is in network, i.e. either AF is perceived and is informed by TDF or AF TDF
The application identities of PCRF customer services, PCRF inform ANDSF application identities, ANDSF by the interface between ANDSF and PCRF again
Optimal access net is selected according to application identities.
Three kinds of different modes that application identities are obtained with reference to above-mentioned PCRF equipment illustrate the access net of the present invention respectively
Selection method.
Embodiment one：PCEF（Built-in TDF）Detection application identities are simultaneously reported to PCRF, and PCRF is interacted with ANDSF, instruction
ANDSF carries out access network selection, and referring to Fig. 4, access network selection method for example includes the following steps：
Step 401, user reaches the standard grade, IPCAN（IP-Connectivity Access Network, IP connected reference networks）
Session establishment, PCEF is by Gx interfaces by user identifier, user location, the information reportings PCRF such as be currently accessed type.
Step 402, the ANDSF session establishments between PCRF and ANDSF.PCRF sends ANDSF session establishments to ANDSF and asks
Message, ANDSF is asked to respond ANDSF session establishment response messages.
Step 403, user accesses application, such as user uses certain class business, such as P2P business, PCEF（Built-in TDF）Inspection
The business of measuring triggers IPCAN session updates message after starting, and by application identities, user identifier, user location, is currently accessed type
Etc. being reported to PCRF.
Step 404, PCRF sends IPCAN session updates and responds to PCEF.
Step 405, application identities, user identifier, user location, access style etc. are asked to send out by PCRF by session updates
Give ANDSF.
Step 406, ANDSF sends session updates response to PCRF.ANDSF is according to user identifier, application identities, Yong Huwei
It sets, the parameters such as access style select current most suitable access network type.
Step 407, it if access style used in the access network type of ANDSF selections and active user is inconsistent, gives
User sends short message.
Step 408, user sends access network selection request to ANDSF.
Step 409, ANDSF returns to access network selection response to user, to inform current most suitable the connecing of user's selection
Network types.
Step 410, user switches to the access net indicated by ANDSF.
Step 411, user offline, IPCAN conversation ends.
Step 412, ANDSF conversation ends.
Embodiment two：TDF as the entity independently of PCEF, apply and be reported to PCRF, PCRF and ANDSF friendship by detection
Mutually, instruction ANDSF carries out access network selection, and referring to Fig. 5, access network selection method for example includes the following steps：
Step 501, user reaches the standard grade, IPCAN session establishments, and PCEF is by Gx interfaces by user identifier, user location, current
The information reportings such as access style PCRF.
Step 502, ANDSF sessions are established between PCRF and ANDSF, specifically, PCRF sends ANDSF sessions to ANDSF
Request message is established, ANDSF responds ANDSF session establishment response messages.
Step 503, Sd sessions are established between TDF and PCRF.
Step 504, user uses certain class business, such as P2P business, and TDF is detected application identities after business starts, used
Family mark, user location are currently accessed type etc. and are reported to PCRF.
Step 505, PCRF TDF reported events are responded.
Step 506, PCRF by application identities, user identifier, user location, be currently accessed type etc. by ANDSF sessions
Update request is sent to ANDSF.
Step 507, ANDSF to PCRF return session updates response, and according to user identifier, application identities, user location,
The parameters such as access style select current most suitable access network type.
Step 508, it if access style used in the access network type of ANDSF selections and active user is inconsistent, gives
User sends short message.
Step 509, user sends access network selection request to ANDSF.
Step 510, ANDSF returns to access network selection response to user, to inform current most suitable the connecing of user's selection
Network types.
Step 511, user switches to the access net indicated by ANDSF.
Step 512, user offline, IPCAN conversation ends.
Step 513, TDF conversation ends.
Step 514, ANDSF conversation ends.
Embodiment three：AF informs that PCRF applications start, and PCRF is interacted with ANDSF, and instruction ANDSF carries out access network selection,
Referring to Fig. 6, access network selection method for example includes the following steps：
Step 601, user reaches the standard grade, IPCAN session establishments, and PCEF is by Gx interfaces by user identifier, user location, current
The information reportings such as access style PCRF.
Step 602, the ANDSF session establishments between PCRF and ANDSF.PCRF sends ANDSF session establishments to ANDSF and asks
Message, ANDSF is asked to respond ANDSF session establishment response messages.
Step 603, user initiates certain service request to AF.
Step 604, AF issues AAR to PCRF（Authorization requests）, request PCRF mandates QoS（Service quality）, taken in request
Band application identities.
Step 605, PCRF returns to AAA to AF（Authorization response）.
Step 606, if QOS is authorized successfully, PCRF passes through user identifier, user location, application identities, access style etc.
The request of ANDSF session updates is sent to ANDSF.
Step 607, ANDSF to PCRF return session updates response, and according to user identifier, application identities, user location,
The parameters such as access style select current most suitable access network type.
Step 608, it if access style used in the access network type of ANDSF selections and active user is inconsistent, gives
User sends short message.
Step 609, user sends access network selection request to ANDSF.
Step 610, ANDSF returns to access network selection response to user, to inform current most suitable the connecing of user's selection
Network types.
Step 611, user switches to the access net indicated by ANDSF.
Step 612, user offline, IPCAN conversation ends.
Step 613, ANDSF conversation ends.
Another aspect according to the ... of the embodiment of the present invention proposes a kind of access network selection system.Fig. 7 is present invention access net
The structural schematic diagram of selection system one embodiment.As shown in fig. 7, the system of the present embodiment includes：PCRF equipment 70 and
ANDSF equipment 80.Application identities are sent to ANDSF equipment 80 by PCRF equipment 70 for obtaining application identities.ANDSF is set
Standby 80 for being that user selects access network type according to application identities and other parameters.
Fig. 8 is the structural schematic diagram of ANDSF equipment one embodiment of the present invention.As shown in figure 8, the ANDSF of the present embodiment
Equipment 80 includes：
Receiving module 801, for receiving the user identifier of "Policy and Charging Rules Function PCRF equipment transmission, using mark
Know, user location and be currently accessed type；
Access network selection module 802, for being user's selection access network type according to application identities and user location, if
The access network type of selection is currently accessed Type-Inconsistencies with user, and to the user identifier, corresponding user sends a notification message,
Access network selection flow is initiated to trigger user；And
Indicating module 803, the access network selection for being sent in response to user are asked, and returning to access network selection to user rings
It should be to indicate the access network type of selection, so that user switches to the access net of ANDSF equipment instruction.
In one embodiment, receiving module 801 are specifically used for receiving the session updates request that PCRF equipment is sent,
In, session updates request includes user identifier, application identities, user location and is currently accessed type.
In one embodiment, session updates request triggered by customer incident, wherein customer incident include application start,
Change using end or access style.
In one embodiment, access network selection module 802 is specifically used for according to application identities being that user selects access net
Type determines if there are the access network types of selection at user location and selects the access network type, if at user location not
There are the access network types of selection, and other access network types are selected for user.
In one embodiment, as shown in figure 9, access network selection system further include PCEF equipment 901, TDF equipment 902,
Or AF903；PCEF equipment 901 is sent to PCRF equipment for detecting application identities, and by application identities, built in PCEF equipment
TDF；Application identities are sent to PCRF equipment by TDF equipment 902 for detecting application identities, and TDF equipment is set independently of PCEF
It is standby to exist；Application identities are sent to PCRF equipment by AF903 for detecting application identities.
The access network selection method and system and ANDSF equipment that the embodiment of the present invention proposes, pass through network-aware application
And report ANDSF equipment, different access nets is selected according to application identities by ANDSF equipment, is realized a kind of based on application
Access network selection scheme, so as to be that user selects most suitable access way according to specific service conditions.
Also, service-aware point in network, i.e. either AF is perceived by TDF or AF and is informed PCRF customer services TDF
Application identities, PCRF inform that ANDSF application identities, ANDSF are selected according to application identities by the interface between ANDSF and PCRF again
Select optimal access net.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of access network selection method, including：
Access network discovery and selection function ANDSF equipment receive "Policy and Charging Rules Function PCRF based on the interactive interface added
User identifier that equipment is sent, user location and is currently accessed type at application identities；
ANDSF equipment is that user selects access network type according to application identities and user location, if the access network type of selection
Type-Inconsistencies are currently accessed with user, corresponding user sends a notification message to the user identifier, to trigger user's initiation
Access network selection flow；
ANDSF equipment is asked in response to the access network selection that user sends, and access network selection response is returned to indicate to select to user
The access network type selected, so that user switches to the access net of ANDSF equipment instruction；
Wherein, the ANDSF equipment is that user's selection access network type includes according to application identities and user location：
ANDSF equipment is that user selects access network type according to application identities, if there are the access nets of selection at user location
Type determines and selects the access network type, if the access network type of selection is not present at user location, other are selected for user
Access network type.
2. according to the method described in claim 1, it is characterized in that, the ANDSF equipment receives the user that PCRF equipment is sent
It mark, application identities, user location and is currently accessed type and includes：
ANDSF equipment receive PCRF equipment send session updates request, wherein the session updates request include user identifier,
Application identities, user location and it is currently accessed type.
3. according to the method described in claim 2, it is characterized in that, session updates request is triggered by customer incident, wherein user
Event includes that application starts, changes using end or access style.
4. according to the method described in claim 1, it is characterized in that, PCRF equipment obtains application identities in the following manner：
Strategy and charge execution function PCEF equipment detect application identities, and application identities are sent to PCRF equipment；Alternatively,
Current detection functionality TDF equipment detects application identities, and application identities are sent to PCRF equipment；Alternatively,
Application Function AF detects application identities, and application identities are sent to PCRF equipment.
5. a kind of access network discovery and selection function ANDSF equipment, including：
Receiving module, for receiving user's mark that "Policy and Charging Rules Function PCRF equipment is sent based on the interactive interface added
Knowledge, application identities, user location and it is currently accessed type；
Access network selection module, for being user's selection access network type according to application identities and user location, if selection
Access network type is currently accessed Type-Inconsistencies with user, and to the user identifier, corresponding user sends a notification message, to touch
Initiate access network selection flow in hair family, wherein include for user's selection access network type according to application identities and user location：
It is that user selects access network type according to application identities, if there are the access network types of selection at user location, determines selection
The access network type selects other access network types if the access network type of selection is not present at user location for user；
Indicating module, the access network selection for being sent in response to user are asked, and access network selection response is returned to refer to user
The access network type for showing selection, so that user switches to the access net of ANDSF equipment instruction.
6. ANDSF equipment according to claim 5, which is characterized in that
The receiving module is specifically used for receiving the session updates request that PCRF equipment is sent, wherein the session updates request bag
It includes user identifier, application identities, user location and is currently accessed type.
7. ANDSF equipment according to claim 6, which is characterized in that session updates request is triggered by customer incident,
In, customer incident includes that application starts, changes using end or access style.
8. a kind of access network selection system, including：Claim 5-7 any one of them ANDSF equipment and PCRF equipment；
PCRF equipment is for obtaining application identities.
9. system according to claim 8, which is characterized in that the system further includes that strategy and charge execution function PCEF are set
Standby, current detection functionality TDF equipment or Application Function AF；
Application identities are sent to PCRF equipment by PCEF equipment for detecting application identities；
Application identities are sent to PCRF equipment by TDF equipment for detecting application identities；
Application identities are sent to PCRF equipment by AF for detecting application identities.
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| CN105227682A (en) * | 2015-10-30 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | The method and system of message are switched based on the large data-pushing network in base station |
| CN116419360B (en) * | 2023-06-06 | 2023-09-19 | 成都爱瑞无线科技有限公司 | Mobility management method, device and storage medium of general sense integrated system |
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| CN101720109A (en) * | 2009-06-26 | 2010-06-02 | 中兴通讯股份有限公司 | System and method for realizing intercommunication and fusion of policy |
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| US8797875B2 (en) * | 2011-09-16 | 2014-08-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Policy controlled offloading among neighboring networks |
| EP2859757B1 (en) * | 2012-05-21 | 2017-03-08 | Tekelec, Inc. | Methods, systems, and computer readable media for access network discovery and selection |
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| CN101720109A (en) * | 2009-06-26 | 2010-06-02 | 中兴通讯股份有限公司 | System and method for realizing intercommunication and fusion of policy |
| CN103181221A (en) * | 2010-10-25 | 2013-06-26 | 阿尔卡特朗讯 | Control of access network/access technology selection for the routing of IP traffic by a user equipment, and QoS support, in a multi-access communication system |
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