CN103813380B - A kind of tactful method, system and device in renewal ANDSF entities - Google Patents
A kind of tactful method, system and device in renewal ANDSF entities Download PDFInfo
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- CN103813380B CN103813380B CN201210449325.9A CN201210449325A CN103813380B CN 103813380 B CN103813380 B CN 103813380B CN 201210449325 A CN201210449325 A CN 201210449325A CN 103813380 B CN103813380 B CN 103813380B
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Abstract
The invention discloses the tactful method, system and device in a kind of renewal ANDSF entities, alleviate the congestion condition of access network to realize, improve the technical scheme of the success rate of terminal access procedure.Present invention method includes：ANDSF entities obtain the congestion information of access network；According to the congestion information, it is determined that there is the access network of congestion, and rule related to there is the access network of congestion in the strategy of itself is updated.Using the embodiment of the present invention, the strategy after the renewal that the terminal subsequently accessed issues according to ANDSF entities is accessed, so as to alleviate the congestion condition of access network, improve the success rate of terminal access procedure, improve Consumer's Experience.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of renewal access network discovery and selection function（Access
Network Discovery and Selection Function, ANDSF）Tactful method, system and device in entity.
Background technology
The grouping system of evolution（Evolved Packet System, EPS）It is one and supports a variety of access technologies and a variety of
Ambulant system between access technology.Under multiple access scene, terminal is likely to be at multiple third generation partner programs
（3rd Generation Partnership Project, 3GPP）And/or under the collectively covering of non-3GPP access network, and
These access networks may use different access technologies, may belong to different operators, it is also possible to provide and arrive different core
The access of net.In order to aid in access network discovery and the selection of terminal, ANDSF entities are defined, the ANDSF entities are carried to terminal
For the strategy related with selection of the access network discovery to terminal.
ANDSF entities and user equipment（User Equipment, UE）Between communication construction it is shown in Figure 1, wherein
UE and ownership ANDSF（Home-ANDSF, H-ANDSF）Interacted between entity by S14 interfaces, the interface is one and is based on
Internet Protocol（Internet Protocol, IP）Interface.Communication between UE and ANDSF entities includes Pull patterns（Draw
Pattern）With Push patterns（Push-model）, wherein, Pull patterns are that UE actively sends request to ANDSF entities, and Push is ANDSF
Entity is actively to UE pushed informations.
Interacting between UE and ANDSF entities is to be based on Open Mobile Alliance（Open MobileAlliance, OMA）It is fixed
The OMA equipment controles of justice（Device Management, DM）Agreement.UE can use the Generic defined in the agreement
Alert message is asked to ANDSF entities sending strategy, and ANDSF entities are contracted, eventually after the strategy request is received according to user
End position, terminal unit ability etc. select corresponding policy distribution to UE, are connect so that UE carries out selection according to the strategy received
Enter network and carry out access procedure.
At present, ANDSF entities are to provide the terminal with the Network finding information related to selection based on carrier policy, main
Including：The mobility strategy of cross-system（Inter-system mobility policy, ISMP）, access network discovery information
（Access Network Discovery Information, ANDI）And cross-system routing policy（Inter-System
Routing Policy, ISRP）.Three kinds of strategies are illustrated below：
ISMP includes the rule that defines of operator and preference information, and whether its main definitions allows cross-system movement, most
It is adapted to the packet-based core networks of access evolution（Evolved Packet Core, EPC）Access technology type and different access skill
The information such as the different priorities of art；ISMP can be prewired in the terminal, can also be sent in terminal request by ANDSF entities,
Or it is pushed to terminal under certain triggering by ANDSF entities.
Wherein, ISMP is included per rule further again comprising herein below：
1）RulePriority（Rule prioritization）, for representing priority of the rule in ISMP, the value is smaller
The priority of representative is higher；
2）PrioritizedAccess（It is preferred that access network）, for represent should the one or more of prioritizing selection connect
Enter network, further comprise：
a、AccessTechnology（Access technology）, for representing the access network that PrioritizedAccess is formulated
Used access technology, there is tri- kinds of 3GPP, WLAN and WiMAX at present；
b、AccessID（Access network is identified）, only include the service set of wlan network（ServiceSet
Identifier, SSID）With the access network operator identifier of WiMAX network（Network AccessProvider
Identifier, NAP-ID）；
C, SecondaryAccessID, it is the second mark of the access network that AccessID is represented, only in access network
When network is WLAN access networks, it is only possible to SecondaryAccessID occur, its form is extended by the homogeneity in 802.11u to be taken
Business set identifier（Homogenous Extended Service SetIdentifier, HESSID）Definition；
d、AccessNetworkPriority（Access network priority）, when there are multiple available access networks（I.e. one
There are multiple PrioritizedAccess in individual rule）When, represent that AccessID is identified by AccessNetworkPriority
Access network priority；If its value is between 1 ~ 250, value is smaller to represent that priority is higher；If its value is 254（Should
Value represents Restricted, i.e. limitation access）With 255（The value represents Forbidden, that is, forbids access）, then it represents that UE can not
Use the access network；
3）ValidityArea（Effective coverage）, define the effective region of the rule, can use 3GPP, 3GPP2,
WLAN, WiMAX marker method or geographical coordinate determine a specific region；
4）Roaming（Roaming）, the rule is defined suitable for roaming scence or non-roaming scene；
5）PLMN, which defines and issues the regular PLMN（Public Land MobileNetwork,
PLMN）Mark；
6）TimeOfDay（Allow turn-on time）, which specify of the effective time of rule, including date and time
Only, i.e., UE is allowed to access within the period, other times section does not allow UE to access.
7）UpdatePolicy（More new strategy）, which define whether terminal needs active request more new strategy；
ANDI includes available near the terminal that ANDSF entities are provided by terminal and meets the access that the terminal is asked
The access network list of type and relevant parameter, such as access technology（Such as WLAN（Wireless Local Area
Network, WLAN）, worldwide interoperability for microwave accesses（WorldwideInteroperability for Microwave
Access, WiMAX）Deng）, Radio Access Network mark, carrier frequency etc..
ANDI further includes the specifying information of one or more access networks, i.e.,：
1）AccessNetworkType（Access network type）, the type of corresponding access network is which defined, including
WLAN, 3GPP and WiMAX；
2）AccessNetworkArea（Access network region）, which define the corresponding effective position letter of access network
Breath；
3）AccessNetworkInformationRef（Access network information）, it is detailed comprising specific access network
Information, such as WiMAX access networks, Name that AccessNetworkInformationRef includes,
The information definitions such as FrequencyInfo, NAP-ID mark of specific WiMAX network, frequency information.
ISRP includes the information needed for cross-system is route, for the terminal with many radio access interfaces, such as supports IP streams
Mobility（IP Flow Mobility, IFOM）Or multiple access PDN connections（Multi AccessPDN Connectivity,
MAPCON）Terminal, the information that ISRP is included can be used for determine：It is available using which kind of when meeting specific route conditions
Access network send data；Or for specific IP traffic and/or particular access point title（Access Point
Name, APN）For, when disabled certain access network is.
Specifically, ISRP is further again comprising one or more filtering rules（Filter Rules）.For supporting IFOM
Terminal, each filtering rule identified when data meet specific IP flow filter, and what can be used has priority
Access network list, and the access network type prohibitted the use of；Terminal for supporting MAPCON, each filtering rule is marked
Know to work as and met packet data network gateway（PacketDataNetwork, PDN）Connection route to specific APN condition when, can
With the access network list with priority used, and the access network type prohibitted the use of；For the WLAN of non-seamless
Shunting, which kind of data each filtering rule, which both defines, should use the WLAN shunt of non-seamless, and which kind of data should not be used
The WLAN shunt of non-seamless, in addition, for specific data, its WLAN shunt for using non-seamless can also be limited, or only in spy
Determine to allow the WLAN shunt using non-seamless in WLAN access networks.
ISRP can be made up of the strategy based on IFOM, MAPCON and non-seamless WLAN offload, wherein
ForFlowBased, ForServiceBased and ForNonSeamlessOffload are respectively defined for IFOM, MAPCON
With NSWO strategy.By taking the related strategies of IFOM as an example, the wherein IPFlow element definitions attribute of specific IP streams；
RoutingCriteria defines the effective specific region of the rule（Defined by ValidityArea）And the time（By
TimeOfDay is defined）Deng；RoutingRule is similar with the PrioritizedAccess in ISMP strategies, defines to specific
IP streams carry out the access technology, access mark and precedence information used during IFOM.
Existing 3GPP agreements regulation, ANDSF entities can be supplied to terminal according to Carrier Requirements and roaming agreement selection
One or more strategy in ISMP, ANDI and ISRP.ANDSF entities can be carried out with some of carrier network database
Interaction, such as home subscriber server（Home SubscriberServer, HSS）, to obtain required information.
At present, ANDSF entities are a static databases, and it will not frequently change self-contained data.Also, due to
Strategy in ANDSF entities does not account for the situation of access network congestion, it is thus possible to the higher access of some priority occur
Network occurs after congestion, and the policy selection that terminal is still issued according to the ANDSF entities access network is accessed, and then is exacerbated
The congestion condition of the access network, the access network can not normally be accessed by even resulting in terminal.
The content of the invention
The embodiments of the invention provide the tactful method, system and device in a kind of renewal ANDSF entities, to solve
In the prior art because the strategy in ANDSF entities does not account for the situation of access network congestion, may cause terminal still by
The access network that congestion has occurred in policy selection according to ANDSF entities is accessed, and aggravates the congestion condition of the access network,
Even prevent the problem of terminal is from normally accessing the access network.
A kind of tactful side updated in access network discovery and selection function ANDSF entities provided in an embodiment of the present invention
Method, this method includes：
ANDSF entities obtain the congestion information of access network；
The ANDSF entities it is determined that there is the access network of congestion, and update the strategy of itself according to the congestion information
In the rule related to there is the access network of congestion.
A kind of congestion information sending method provided in an embodiment of the present invention, including：
Sending side judges whether access network congestion occurs；
The sending side sends that the access network is corresponding to gather around to ANDSF entities after it is determined that congestion occurs in access network
Fill in information.
Tactful device in a kind of renewal ANDSF entities provided in an embodiment of the present invention, the device includes：
Data obtaining module, the congestion information for obtaining access network；
Developing Tactics module, for according to the congestion information, it is determined that there is the access network of congestion, and updating itself
The rule related to the access network that this congestion occurs in strategy.
A kind of congestion information dispensing device provided in an embodiment of the present invention, described device includes：
Determination module, for judging whether access network congestion occurs；
Information sending module, for after the judge module determines that congestion occurs in access network, being sent to ANDSF entities
The corresponding congestion information of the access network.
A kind of communication system provided in an embodiment of the present invention, the system includes：
Congestion information dispensing device, for judging whether access network congestion occurs；And it is determined that access network is gathered around
After plug, the corresponding congestion information of the access network is sent to ANDSF entities.
ANDSF entities, the congestion information for obtaining access network；According to the congestion information, it is determined that there is congestion
Access network, and update rule related to there is the access network of congestion in the strategy of itself.
In the embodiment of the present invention, ANDSF entities, can be according to receiving when congestion occur in some or some access networks
The corresponding congestion information of the access network, rule related to there is the access network of congestion in itself strategy is updated, after making
Strategy after the renewal that the terminal that continued access enters can be issued according to ANDSF entities is accessed, so as to alleviate the access network
Congestion condition, improve the success rate of terminal access procedure, improve Consumer's Experience.
Brief description of the drawings
Fig. 1 supports the architectural schematic of function for the access network discovery of the prior art based on ANDSF entities；
Fig. 2 is the tactful method flow schematic diagram in renewal ANDSF entities provided in an embodiment of the present invention；
Fig. 3 is congestion information sending method schematic flow sheet provided in an embodiment of the present invention；
Fig. 4 be renewal ANDSF entities provided in an embodiment of the present invention in tactful device structural representation；
Fig. 5 is the structural representation of congestion information dispensing device provided in an embodiment of the present invention；
Fig. 6 is the structural representation of communication system provided in an embodiment of the present invention；
The schematic flow sheet for the embodiment one that Fig. 7 provides for the present invention；
The schematic flow sheet for the embodiment two that Fig. 8 provides for the present invention.
Embodiment
The embodiment of the present invention, ANDSF entities, can be according to receiving when congestion occur in some or some access networks
The congestion information of the access network, updates rule related to there is the access network of congestion in itself strategy, makes subsequent terminal
Strategy after the renewal that can be issued according to ANDSF entities is accessed, so as to solve problems of the prior art.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
It is shown in Figure 2, the tactful method in a kind of renewal ANDSF entities provided in an embodiment of the present invention, including with
Lower step：
Step 21, ANDSF entities obtain the congestion information of access network；
Further, in the embodiment of the present invention, congestion information at least includes the Congestion Level SPCC for representing the access network
The first information and the second information for identifying the access network.
Step 22, ANDSF entities are according to the congestion information received, it is determined that there is the access network of congestion, and update certainly
The rule related to the access network that this congestion occurs in the strategy of body.
Further, in step 21, ANDSF entities know the congestion information for the access network for congestion occur, including following two
The mode of kind：
Mode one, by network node（Such as access node（Access Point, AP）Management system etc.）Carried to ANDSF entities
Confess the congestion information of the access network of existing congestion；
Wherein, network node is not limited to AP management systems, every congestion condition that can learn each access network
Network side equipment can as the embodiment of the present invention network node, network node is it is determined that congestion occurs in some access network
When, the congestion information of the access network is provided to ANDSF entities.
Further, network node provides the congestion information for the access network for congestion occur to ANDSF entities, specifically includes：
Network node judges whether access network congestion occurs, and when it is determined that congestion occurs in some access network, to
ANDSF entities send the corresponding congestion information of the access network.
Mode two, from UE to ANDSF entities provide occur congestion access network congestion information；
Further, UE physically quotes the congestion information of the access network of existing congestion to ANDSF, specifically includes：
UE judges whether access network congestion occurs, after it is determined that congestion occurs in some access network, to ANDSF physically
Report the congestion information of the access network；Or
UE acquires the congestion information of some access network by being interacted with AP, according to the congestion information, it is determined that occurring
The access network of congestion, and report the corresponding congestion information of the access network to ANDSF entities.
It is preferred that, UE passes through the general alarm in OMA DM agreements（Generic Alert）Message carries access network
Congestion information；
Further, UE carries the congestion information of access network by Generic Alert message, including：
UE represents congestion information by the information word extended in Generic Alert message；Or
UE represents congestion information by the information word increased newly in Generic Alert message.
It should be noted that according to 802.11u agreements, UE can be by interacting, to obtain some access network with AP
Congestion information, and the corresponding congestion information of the access network is sent to ANDSF entities.
In order to avoid frequently being changed rule, it is preferred that for same access network, ANDSF entities are being received
To after the congestion information of multiple UE access networks reported, determine that congestion occurs in the access network, and update the strategy of itself
In the rule related to the access network that this congestion occurs.
Further, in step 22, ANDSF entities update the rule in the strategy of itself, including following four mode：
Occurs the access network priority of the access network of congestion in mode A, regulation rule
（AccessNetworkPriority）.
Further, which A includes again：
Mode A1, ANDSF entity reduces the access network priority for occurring the access network of congestion in the rule；
For example, in ISMP, the numerical value of access network priority is general between 1 ~ 250, wherein, value is 1 access network
The priority level highest of network, value is minimum for the priority level of 250 access network；Assuming that some rule includes access network
A and access network B, wherein, access network A AccessNetworkPriority value is 1, access network B's
AccessNetworkPriority value is 2, if congestion occurs in access network A, ANDSF entities can reduce A pairs of access network
The AccessNetworkPriority answered value, is such as adjusted to 200 by its value, and by access network B's
AccessNetworkPriority value is adjusted to 1 so that follow-up UE is after the strategy is received, and selection access network B connects
Enter, the access network A without selecting congestion occurred is accessed, so as to alleviate access network A congestion condition, is improved
The success rate of UE access networks.
Certainly, while the access network priority for the access network for congestion occur in reduction, it can adjust in the rule
The access network priority of other access networks（Such as raise the access network priority of other access networks）, can not also adjust
The access network priority of other access networks in the rule.
The access network priority for occurring the access network of congestion in the rule is set to not permit by mode A2, ANDSF entity
Perhaps UE is accessed；
Wherein, UE accesses are not allowed to include in mode A2：Limitation UE accesses forbid UE to access.
For example, in ISMP, when the value of access network priority is 254, representing that limitation UE accesses corresponding access network
（Restricted）；When the value of access network priority is 255, expression forbids UE to access corresponding access network
（Forbidden）.
Certainly, the access network priority for occurring the access network of congestion in rule is being adjusted to not allow what UE was accessed
Meanwhile, the access network priority of other access networks in the rule can be adjusted（Such as raise the access network of other access networks
Network priority）, the access network priority of other access networks in the rule can not also be adjusted.
When mode B, all access networks in the tactful a certain rule of ANDSF entities all congestion occur, adjustment should
Rule prioritization of the rule in relative strategy（RulePriority）；
For example, in ISMP, the value of rule prioritization is smaller, corresponding regular priority level is higher, in ISMP
When all access networks that a certain rule is included all congestion occur, rule prioritization of the rule in ISMP is reduced, so that after
Continuous UE is received after the ISMP after ANDSF entities update, and access network priority is high in the high rule of selection rule prioritization
Access network is accessed.
Mode C, ANDSF entity is by the regular permission turn-on time related to there is the access network of congestion
（TimeOfDay）It is set to the idle period for the access network of congestion occur；
Illustrate, it is assumed that congestion currently occurs in access network A, and access network A idle period is 2:00~6:
00, then ANDSF entities adjust the ISMP of itself after knowing that congestion occurs in access network A, i.e., will in ISMP include access network
A regular permission turn-on time is set to 2:00~6:00, so that follow-up UE is received after the ISMP after ANDSF entities update,
Within the regular permission turn-on time the high access network of access network priority in the rule can only be selected to be accessed.
It should be noted that the idle period of access network can be according to the statistics of the busy time of the access network
Obtain.
Mode D, ANDSF entity is deleted all related to there is the access network of congestion in UE strategy is sent to
Rule.
In which, ANDSF entities can not be deleted related to there is the access network of congestion in the strategy itself stored
Rule, simply when to UE sending strategys, will be sent to UE strategy in it is all with there is the rule of the access network of congestion
Delete.
Illustrate, it is assumed that operator deploys two wlan networks in certain hot zones, if its network identity is respectively A
And B, wherein A are used as the preferred network of non-seamless WLAN shunt；Connect assuming that having to correspond to respectively in the ISRP strategies of ANDSF entities
Enter network A and access network B regular node, wherein, access network A and access network B are corresponding
AccessNetworkPriority is respectively 1 and 2.If due to the access of great amount of terminals, there is congestion condition in access network A.UE
Congestion information is reported, the congestion information includes access network A network identity（That is SSID=A）With access network A congestion journey
Degree；ANDSF entities know that congestion occurs in SSID=A wlan network, and adjust after the congestion information that UE is reported is received
Make the corresponding regular nodes of access network A after ISRP, adjustment（That is access network A strictly all rules is included in the ISRP）Occur without
In UE strategy is handed down to, so that after the ISRP of subsequent terminal upon a reception of an updated, selecting SSID=B wlan network
Carry out non-seamless WLAN shunt.
Further, after step 22, in addition to：
Step 23, ANDSF entities provide the strategy after updating to UE.
In step 23, ANDSF entities further comprise to the UE strategies provided after updating：
ANDSF entities send the strategy after updating after the strategy request of UE transmissions is received to the UE；Or
ANDSF entities directly send the strategy after updating after the strategy of itself has been updated to UE.
Above method handling process can realize that the software program can be stored in storage medium with software program, when
When the software program of storage is called, above method step is performed.
It is shown in Figure 3, a kind of congestion information sending method provided in an embodiment of the present invention, including：
Step 31, sending side judge whether access network congestion occurs；
Step 32, sending side send the access network corresponding after it is determined that congestion occurs in access network to ANDSF entities
Congestion information.
Further, sending side can be network node（Such as access node（Access Point, AP）Management system etc.）Or
UE。
Certainly, network node is not limited to AP management systems, every congestion condition that can learn each access network
Network side equipment can as the embodiment of the present invention network node, network node is it is determined that congestion occurs in some access network
When, the congestion information of the access network is provided to ANDSF entities.
If sending side is UE, step 31 is specifically included：
UE judges whether access network congestion occurs, after it is determined that congestion occurs in some access network, to ANDSF physically
Report the congestion information of the access network；Or
UE acquires the congestion information of some access network by being interacted with AP, according to the congestion information, it is determined that occurring
The access network of congestion, and report the corresponding congestion information of the access network to ANDSF entities.
It is preferred that, step 32 further comprises：
Pass through the general alarm in OMA DM agreements（Generic Alert）Message carries the corresponding congestion letter of access network
Breath.
Further, in step 32, UE carries the congestion information of access network by Generic Alert message, including：
Congestion information is represented by the information word extended in Generic Alert message；Or
Congestion information is represented by the information word increased newly in Generic Alert message.
Based on same inventive concept, the tactful dress in a kind of renewal ANDSF entities is additionally provided in the embodiment of the present invention
Put, because the principle that the device solves problem is similar to the tactful method in above-mentioned renewal ANDSF entities, therefore the device
Implementation may refer to the implementation of method, repeats part and repeats no more.
It is shown in Figure 4, the tactful device in renewal ANDSF entities provided in an embodiment of the present invention, including：
Data obtaining module 41, the congestion information for obtaining access network；
Developing Tactics module 42, for according to the congestion information, it is determined that there is the access network of congestion, and updating itself
Strategy in the rule related to the access network that this congestion occurs.
As the first way of realization, Developing Tactics module 42 specifically for：
Adjust the access network priority for occurring the access network of congestion in the rule.
Further, Developing Tactics module 42 specifically for：
Reduce the access network priority for occurring the access network of congestion in the rule；Or
The access network priority for occurring the access network of congestion in the rule is set to not allow UE to access.
As second of way of realization, Developing Tactics module 42 specifically for：
If congestion all occur in all access networks in a certain rule, rule precedence of the rule in itself strategy is adjusted
Level.
As the third way of realization, Developing Tactics module 42 specifically for：
All regular permission turn-on times related to there is the access network of congestion are set to this and connecing for congestion occur
Enter the idle period of network.
As the 4th kind of way of realization, Developing Tactics module 42 specifically for：
All rules related to there is the access network of congestion are deleted in the strategy for being sent to UE.
Further, data obtaining module 41 specifically for：
The corresponding congestion information of access network is obtained from AP management systems；Or
Receive the corresponding congestion information of access network that UE is reported.
In force, the device also includes：
Tactful sending module 43, for providing the strategy after updating to UE.
Further, sending module 43 specifically for：
After the strategy request of UE transmissions is received, the strategy after updating is sent to the UE；Or
In the strategy that Developing Tactics module 42 has updated itself after the rule related to the access network that this congestion occurs,
Directly the strategy after updating is sent to UE.
Based on same inventive concept, a kind of congestion information dispensing device is additionally provided in the embodiment of the present invention, due to the dress
Put that the principle solved the problems, such as is similar to above-mentioned congestion information sending method, therefore the implementation of the device may refer to the reality of method
Apply, repeat part and repeat no more.
It is shown in Figure 5, congestion information dispensing device provided in an embodiment of the present invention, including：
Determination module 51, for judging whether access network congestion occurs；
Information sending module 52, for after judge module 51 determines that congestion occurs in access network, being sent to ANDSF entities
The corresponding congestion information of the access network.
Wherein, the congestion information dispensing device of the embodiment of the present invention is network node or UE.
If the device is network node, the determination module 51 in the network node performs following step with information sending module 52
Suddenly：
When determination module 51 determines that congestion occurs in some access network, information sending module 52 is triggered to ANDSF entities
Send the congestion information for the access network of congestion occur.
It should be noted that the network side equipment of every congestion condition that can learn each access network can be as this
The network node of inventive embodiments, such as AP management systems.
If the device is UE, UE determination module 51 and information sending module 52 perform following steps：
Determination module 51 judges whether access network congestion occurs, after it is determined that congestion occurs in some access network, triggering
Information sending module 52 reports the congestion information of the access network to ANDSF entities；Or
Determination module 51 acquires the congestion information of some access network by being interacted with AP, according to the congestion information,
It is determined that there is the access network of congestion, and trigger information sending module 52 and report the congestion of the access network to believe to ANDSF entities
Breath.
It is preferred that, if the device is UE, information sending module 52 passes through the GenericAlert message in OMA DM agreements
Carry the congestion information of access network；
Specifically, information sending module 52 represents congestion information by the information word extended in Generic Alert message；
Or congestion information is represented by the information word increased newly in Generic Alert message.
It is shown in Figure 6, a kind of communication system provided in an embodiment of the present invention, including：
Congestion information dispensing device 61, for judging whether access network congestion occurs；And it is determined that access network occurs
After congestion, the corresponding congestion information of the access network is sent to ANDSF entities 62.
ANDSF entities 62, the congestion information for obtaining access network；According to the congestion information received, it is determined that occurring
The access network of congestion, and update rule related to the access network that this congestion occurs in the strategy of itself.
With reference to following two specific embodiments, the present invention will be described：
Embodiment one, hypothesis operator deploy two wlan networks in certain hot zones, if its network identity is respectively A
And B, wherein A priority is higher.Due to the access of great amount of terminals, there is congestion in access network A, shown in Figure 7, this reality
Example is applied to comprise the following steps：
Step 71, ANDSF entities issue ISMP to UE, wherein, AccessID=A access network is corresponding
AccessNetworkPriority=1, AccessID=B corresponding AccessNetworkPriority=2 of access network；
Step 72, UE select access network A to be accessed according to ISMP；
Step 73, ANDSF entities know that congestion occurs in access network A from AP management systems；
Step 74, ANDSF entities adjust its ISMP, that is, reduce the access network priority of access network A in ISMP；
Specifically, ANDSF entities are corresponding by the access network of AccessID=A in its ISMP
AccessNetworkPriority is set to 200（That is AccessNetworkPriority=200）, and connecing AccessID=B
Enter the corresponding AccessNetworkPriority of network and be set to 1（That is AccessNetworkPriority=1）；
Step 75, follow-up UE access ANDSF entities；
Step 76, ANDSF issue the ISMP after updating to UE, wherein, AccessID=A access network is corresponding
AccessNetworkPriority=200, AccessID=B corresponding AccessNetworkPriority=1 of access network；
Step 77, UE selections access network B are accessed.
Embodiment two, hypothesis operator deploy two wlan networks in certain hot zones, if its network identity is respectively A
And B, wherein A priority is higher.Due to the access of great amount of terminals, there is congestion in access network A, shown in Figure 8, this reality
Example is applied to comprise the following steps：
Step 81, UE issue ISMP selections access network A according to ANDSF entities and accessed, it is assumed that in ISMP,
AccessID=A corresponding the AccessNetworkPriority=1 of access network, AccessID=B access network is corresponding
AccessNetworkPriority=2；
Step 82, multiple UE report access network A congestion occur to ANDSF；
Step 83, ANDSF adjust its ISMP, i.e., by AccessID=A access network in ISMP
AccessNetworkPriority is adjusted to 254, represents " limitation UE accesses ", and by AccessID=B access network
AccessNetworkPriority is adjusted to 1；
Step 84, follow-up UE accesses ANDSF；
Step 85, ANDSF entities issue the ISMP after updating to follow-up UE, wherein, AccessID=A access network
AccessNetworkPriority=1 of AccessNetworkPriority=254, AccessID=B access network；
Step 86, UE selections access network B are accessed.
In the embodiment of the present invention, ANDSF entities, can be according to receiving when congestion occur in some or some access networks
The corresponding congestion information of the access network, rule related to there is the access network of congestion in itself strategy is updated, after making
Strategy after the renewal that the terminal that continued access enters can be issued according to ANDSF entities is accessed, so as to alleviate the access network
Congestion condition, improve the success rate of terminal access procedure, improve Consumer's Experience.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation
The form of product.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (18)
1. a kind of update access network discovery and the tactful method in selection function ANDSF entities, it is characterised in that this method
Including：
ANDSF entities receive the corresponding congestion information of access network that UE is reported；
The ANDSF entities are according to the congestion information, it is determined that there is the access network of congestion, and update in the strategy of itself with
There is the related rule of the access network of congestion, wherein, it is described if congestion all occur in all access networks in a certain rule
ANDSF entities adjust rule prioritization of the rule in itself strategy.
2. according to the method described in claim 1, it is characterised in that the ANDSF entities update in the strategy of itself with appearance
The related rule of the access network of congestion, including：
There is the access network priority of the access network of congestion in the ANDSF entities adjustment rule.
3. method according to claim 2, it is characterised in that gathering around in the ANDSF entities adjustment rule
The access network priority of the access network of plug, including：
There is the access network priority of the access network of congestion in the ANDSF entities reduction rule；Or
The access network priority for the access network of congestion occur in the rule is set to not allow UE to connect by the ANDSF entities
Enter.
4. method according to claim 3, it is characterised in that described not allow UE accesses to include：Limit UE accesses or prohibit
Only UE is accessed.
5. according to the method described in claim 1, it is characterised in that the ANDSF entities update in the strategy of itself with appearance
The related rule of the access network of congestion, including：
The regular permission turn-on time is set to the idle period for the access network of congestion occur by the ANDSF entities.
6. according to the method described in claim 1, it is characterised in that the ANDSF entities update in the strategy of itself with appearance
The related rule of the access network of congestion, including：
The ANDSF entities delete all rules related to there is the access network of congestion in the strategy for being sent to UE.
7. according to the method described in claim 1, it is characterised in that the ANDSF entities receive the access network pair that UE is reported
Before the congestion information answered, in addition to：
UE is after it is determined that congestion occurs in some access network, by general in open mobile alliance device management OMADM agreements
Alarm information carries the congestion information of the access network.
8. method according to claim 7, it is characterised in that UE carries the access network by the general alarm message
Congestion information, including：
UE represents congestion information by the information word extended in the general alarm message；Or
UE represents congestion information by the information word increased newly in the general alarm message.
9. according to the method described in claim 1, it is characterised in that with going out in the strategy that the ANDSF entities update itself
After the rule of the access network correlation of existing congestion, methods described also includes：
The ANDSF entities provide the strategy after updating to UE.
10. method according to claim 9, it is characterised in that the ANDSF entities provide the strategy after updating to UE,
Further comprise：
The ANDSF entities send the strategy after updating after the strategy request of UE transmissions is received to the UE；Or
After ANDSF entities rule related to there is the access network of congestion in the strategy for updating itself, directly to UE
Send the strategy after updating.
11. a kind of update access network discovery and the tactful device in selection function ANDSF entities, it is characterised in that the dress
Put including：
Data obtaining module, for receiving the corresponding congestion information of access network that UE is reported；
Developing Tactics module, for according to the congestion information, it is determined that there is the access network of congestion, and updating the strategy of itself
In the rule related to the access network that this congestion occurs, wherein, if all there is congestion in all access networks in a certain rule,
Adjust rule prioritization of the rule in itself strategy.
12. device according to claim 11, it is characterised in that the Developing Tactics module specifically for：
There is the access network priority of the access network of congestion in the adjustment rule.
13. device according to claim 12, it is characterised in that the Developing Tactics module specifically for：
There is the access network priority of the access network of congestion in the reduction rule；Or
The access network priority for the access network of congestion occur in the rule is set to not allow UE to access.
14. device according to claim 11, it is characterised in that the Developing Tactics module specifically for：
The regular permission turn-on time related to there is the access network of congestion is set to this and the access network of congestion occurs
Idle period.
15. device according to claim 11, it is characterised in that the Developing Tactics module specifically for：
All rules related to there is the access network of congestion are deleted in the strategy for being sent to UE.
16. device according to claim 11, it is characterised in that described device also includes：
Tactful sending module, for providing the strategy after updating to UE.
17. device according to claim 16, it is characterised in that the sending module specifically for：
After the strategy request of UE transmissions is received, the strategy after updating is sent to the UE；Or
In the strategy that the Developing Tactics module has updated itself after the rule related to there is the access network of congestion, directly
The strategy after updating is sent to UE.
18. a kind of communication system, it is characterised in that the system includes：
Congestion information dispensing device, for judging whether access network congestion occurs；And after it is determined that congestion occurs in access network,
The corresponding congestion information of the access network is sent to ANDSF entities, wherein, described device is UE；
ANDSF entities, for receiving the corresponding congestion information of access network that the congestion information dispensing device is reported；According to institute
Congestion information is stated, it is determined that there is the access network of congestion, and updates related to there is the access network of congestion in the strategy of itself
Rule, wherein, if it is a certain rule in all access networks all there is congestion, adjust rule of the rule in itself strategy
Priority.
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| CN104052744B (en) * | 2014-06-16 | 2017-06-16 | 中国联合网络通信集团有限公司 | A kind of service trigger method and device |
| KR20210072004A (en) | 2018-09-30 | 2021-06-16 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Information processing method, terminal device and storage medium |
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