CN102549978A - Network selection method, network device and network system - Google Patents

Network selection method, network device and network system Download PDF

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Publication number
CN102549978A
CN102549978A CN2009801182841A CN200980118284A CN102549978A CN 102549978 A CN102549978 A CN 102549978A CN 2009801182841 A CN2009801182841 A CN 2009801182841A CN 200980118284 A CN200980118284 A CN 200980118284A CN 102549978 A CN102549978 A CN 102549978A
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network
business stream
switched
objective
user equipment
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CN2009801182841A
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CN102549978B (en
Inventor
胡颖
蔡慧
王珊珊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
    • H04L12/5692—Selection among different networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A network selection method, network device and network system are provided in the embodiments of the present invention. The network selection method includes: receiving a request message which requests the switching of a packet data network connection to a target network; determining information of service streams required to be switched to the target network according to the obtained network selection information.

Description

Network selection method, network device and network system
Network selecting method, the network equipment and network system technical field
The present invention relates to the communications field, more particularly to a kind of network selecting method, the network equipment and network system.
Background technology
At present, certain customers' equipment (User Equipment, UE) can support a variety of access capabilities, and such as UE both can access external network by 3G network, and can also pass through WLAN（Wireless Local Area Network, WLAN) external network etc. is accessed, UE can access external network by a kind of access network, can also access external network by multiple access networks simultaneously.
UE or network side can be currently needed for the service quality of the business carried out according to UE（Quality of Service, QoS) requirement, UE preference, operator's preference, the suitable access network of service selection that the strategy such as the loading condition of network element ability or network is currently needed for carrying out for UE.For example, UE wishes to carry out web page browsing by WLAN, then web page browsing is carried out using WLAN；Or, network side determines UE speech business being placed on progress etc. in 3G access networks according to strategy.
In the prior art, if UE is moved to the overlay area of another access network from a kind of access network overlay area, UE whole business can be switched to target access network, such as：UE enters after WLAN coverage, need to carry out the business such as ip voice voip phone, mail download, UE sets up data cube computation by WLAN, carry out these business, when UE have left WLAN coverage, after only 3G accesses, in order to keep business continuity, UE initiates data cube computation switching, and network is switched to data cube computation under 3G network, then the business such as the current ongoing VoIP of UE, mail download is also all switched under 3G network.
But in some cases（For example when there is rate difference）, UE may be unwilling to carry out certain business using certain access network, and in the presence of only the type access network, UE may select to stop the business of the type.For example, UE surfs the Net in WLAN monthly payments, not limit flow；3G be monthly 5 yuan can use 30M flows, when there is wlan network, user by WLAN start download mail, when When not having wlan network, user is not intended to downloading service to be switched to 3G network, would rather stop downloading service.But in the prior art, when UE switches, network side can not determine which business needs to be switched to objective network, and which business needs to be switched to objective network.
The content of the invention
In view of this, the embodiment of the present invention proposes a kind of network selecting method, the network equipment and network system, realizes UE when switching, and network side can determine to need to be switched to the business of objective network according to network selective information.
A kind of network selecting method, including：
Receive request and Packet Data Network is connected to the request message for being switched to objective network；
Determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition.
A kind of network equipment, including：
Packet Data Network's connection, the request message of objective network is switched to for receiving request by receiving unit；Determining unit, for being determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition.
A kind of user equipment, including：
Dispensing unit, information is selected for Configuration network；
Transmitting element, for the network selective information of the configuration to be sent into the network equipment, so that the network equipment determines to need to be switched to the business stream information of objective network according to the network selective information.
A kind of network selection system, including data gateway and policy decision entity, wherein
The policy decision entity, Packet Data Network's connection is switched to the request message of objective network for receiving the request that the data gateway is sent, determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition, and need the business stream information for being switched to objective network to be sent to the data gateway determination；
The data gateway, need to be switched to the business stream information of objective network for receiving the determination that the policy decision entity is sent, and Packet Data Network connection is switched to objective network, Packet Data Network's connection, which is included, to be needed to be switched to the Business Stream of objective network. Brief description of the drawings
Fig. 1 is the Organization Chart for the user equipment access network that the embodiment of the present invention has multiple access ability；Fig. 2 is the schematic diagram of network selecting method of the embodiment of the present invention first；
Fig. 3 is the schematic diagram of network selecting method of the embodiment of the present invention second；
Fig. 4 is the schematic diagram of network selecting method of the embodiment of the present invention the 3rd；
Fig. 5 is the schematic diagram of the network equipment of the embodiment of the present invention；
Fig. 6 is the schematic diagram of user equipment of the embodiment of the present invention；
Fig. 7 is the schematic diagram of network selection system of the embodiment of the present invention.
Embodiment
Network selecting method provided in an embodiment of the present invention, the network equipment and network system are described in detail below in conjunction with the accompanying drawings.
Referring to the drawings 1, a kind of UE with multiple access ability provided in an embodiment of the present invention passes through a variety of access network accessing group data networks（Packet Data Ne, PDN) Organization Chart, UE can access PDN networks by access network 1 and access network 2 simultaneously, and wherein UE can access access network by access node, then pass through data gateway accessing group data network.Further, for service quality (Qualitity of Service, the QoS) management to UE business, and UE charging is managed, network side can be with deployment strategy and charging control function（Policy and Charging Control, PCC), in the PCC network architectures, QoS decision-makings are done to UE business datum by policy decision entity PCRF, and the QoS rules of institute's decision-making are sent to data gateway, the business datum for the rule control UE that data gateway can be according to transmitted by PCRF.
In the above-mentioned network architecture, access node can be mobile management network element, and mobile management network element can include：Mobility management entity (Mobility Management Entity, MME), GPRS Service support nodes（Serving GPRS Support Node, SGSN)), access gateway（Access Gateway, AG) or gateway（Serving Gateway, SGW) etc.；Data gateway can be mobile anchor point, including：Home agent（Home Agent, HA), local mobile anchor（Local Mobility Anchor, LMA)), packet data network gateway（PDN GW), Gateway GPRS Support Node GGSN etc.. Referring to the drawings 2, the embodiments of the invention provide a kind of method of network selection, including：
202nd, receive request and grouped data network PDN is connected to the request message for being switched to objective network；When user equipment is moved to the overlay area of the second network from the overlay area of first network, user equipment actively can be initiated to ask to network side, and the PDN connections of user equipment are switched to objective network by request.
In embodiments of the present invention, the request message that PDN connections are switched to objective network by the request that data gateway is received can be that request message is set up in connection；Or
The request message that PDN connections are switched to objective network by the request that policy decision entity receives data gateway forwarding can be that policy control updates request message.
Alternatively, if being provided with network selective information on user equipment, network selective information can be included by asking PDN connections being switched in the request message of objective network.
204th, determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition.Wherein, network selective information includes：The network selection strategy corresponding with least one in user equipment and type of service, wherein network selection strategy can include manual network selection or automatic network selection, and available network type etc..The network selection strategy corresponding with least one in user equipment and type of service, including：First way：The network selection strategy corresponding with user equipment, including：
Network selection strategy can be configured according to customer equipment identification, such as：Configuring the available network type of the user equipment of type-A includes：Wlan network, the available network type of the user equipment of B types includes E-UTRAN networks etc.；Or the user equipment of configuration C types is manual network selection；The user equipment of D types is automatic network selection.Wherein carrying out classification to user equipment can the identification information based on user equipment, such as IMSI International Mobile Subscriber Identity (International Mobile Subscriber Identity, IMSI) or international mobile subscriber ISDN number（Mobile Station International ISDN Number, MSISDN) etc., such as user equipmenies of the MSISDN from 86135021000001 to 86135021000999 is type-A, MSISDN from
86158021900001 to 86158021900999 user equipment is B types, can also the charging mode based on user equipment, the user equipment of such as pre-payment is C types, and the user equipment of post-paid is D types etc.； The second way：The network selection strategy corresponding with type of service, including：
The available network type of first kind business, which can be set, includes WLAN and E-UTRAN networks, and the available network type of Second Type business includes wlan network, and the 3rd type service is manual network selection, and the 4th type service is automatic network selection etc..Wherein can be to type of service classification it is arbitrary, can the business based on same or like QoS as a type, or the business with identical source IP address or purpose IP address be used as type etc..
The third mode：The network selection strategy corresponding with user equipment and type of service, including：The available network type of the first kind business of A class user equipmenies, which can be set, includes WLAN and E-UTRAN networks, the available network type of the Equations of The Second Kind business of B class user equipmenies includes wlan network, the third window of the user equipment of C types is manual network selection, and the 4th class business of the user equipment of D types is automatic network selection etc..
It should be noted that, if the available network type of the business of user equipment or some type includes the type for the objective network for needing to switch, then show that the user equipment or business can be switched to objective network, otherwise, it is impossible to be switched to objective network.If the business of user equipment or a certain type is automatic network selection, show that the user equipment or business can be switched to objective network；If manual network selection, then show that the user equipment or business can not be switched to objective network.
Wherein, it is impossible to be switched to objective network, then it can select to continue to reside in current network or termination.Determined to need the Business Stream information for being switched to objective network to include according to the network selective information of acquisition：
If the 1, network selective information is configured according to first way, the user equipment for then determining to send request message is automatic network selection or manual network selection, if manual network selection, then do not allow all Business Streams of the user equipment being switched to objective network；Or if automatic network selection, then allow all Business Streams of the user equipment being switched to objective network；Or
It is determined that whether include the type of objective network, if including allowing all Business Streams of the user equipment being switched to objective network if sending the available network type of user equipment of request message；Or if do not included, then do not allow all Business Streams of the user equipment being switched to objective network.
If the 2, network selective information is configured according to the second way, it is determined that PDN connections are entered Capable Business Stream is automatic network selection or manual network selection, if automatic network selection, then allows the Business Stream being switched to objective network, if manual network selection, then does not allow the Business Stream being switched to objective network；Or
Determine whether the ongoing Business Stream available network type of PDN connections includes objective network, if including allowing the Business Stream to be switched to objective network, or if do not included, then do not allow the Business Stream to be switched to objective network.
If the 3, network selective information is configured according to the third mode, the ongoing Business Stream of user equipment for then determining to send request message is automatic network selection or manual network selection, if automatic network selection, shellfish ' J allows the Business Stream of the user equipment being switched to objective network, if manual network selection, then do not allow the Business Stream of the user equipment being switched to objective network；Or
It is determined that whether send the available network type of the ongoing Business Stream of user equipment of request message includes objective network, if including, the Business Stream of the user equipment is then allowed to be switched to objective network, or if do not included, then do not allow the Business Stream of the user equipment to be switched to objective network.
Wherein, it is impossible to be switched to objective network, then it can select to continue to reside in current network or termination.Further, data gateway can also be interacted with policy control entity, update the policy control rule for the business for needing to be switched to the user equipment of objective network, including：
Data gateway is received after the handover request of user equipment, if data gateway has policy control functions, data gateway and policy decision entity are interacted, and updates the policy control rule of user equipment.
Further, the request message for asking the PDN connections of user equipment being switched to objective network can also be transmitted to policy decision entity by data gateway, and policy decision entity is determined whether the current service switching of user equipment to objective network according to the network selective information of acquisition.If it is determined that the service switching that user equipment is currently carried out is to objective network, then policy decision entity will be sent to data gateway after the policy control Policy Updates of the Business Stream, wherein comprising needing to be switched to the business stream information of objective network；If it is determined that not switching to the Business Stream of objective network, the information of the Business Stream is not included in the policy control rule that policy decision entity is sent, policy control rule or the policy control redundant rule elimination by the Business Stream of the Business Stream etc. are not updated either. Wherein network selective information can be only fitted to user equipment, policy decision entity PCRF, access network discovery and selection entity A NDSF, signing information storehouse（SPR or HSS), certificate server（AAA Server), at least one in application server and data gateway.
Further, data gateway, which is determined, needs to be switched to after the business stream information of objective network, it would be desirable to which business stream information is switched to objective network by Packet Data Network's connection with being switched to objective network；Or
Policy decision entity, which is determined, to be needed to be switched to after the business stream information of objective network, to need with being switched to objective network business stream information be sent to data gateway, data gateway will need with being switched to objective network business stream information objective network is switched to by Packet Data Network's connection.
Further, a user equipment can exist simultaneously there may be zero, one or more Business Stream in one or more PDN connection, each PDN connection one user equipment of correspondence, each PDN connection.When user equipment switches, the PDN that the user equipment there is currently can be connected and be switched to objective network, further, for the Business Stream in some specific PDN connection, partly objective network can be switched to PDN connections, objective network all can also be switched to PDN connections, all can not also be switched to objective network etc. with PDN connections.
Wherein former network or termination can be rested on without switch to the Business Stream of objective network.
The network selecting method that the embodiment of the present invention is provided, when user equipment switches, network side determines whether the Business Stream of user equipment being switched to objective network according to the network selective information pre-set, further, if allowing switching, the Business Stream for needing to switch then is switched to objective network, realize user or operator can flexibly, the control business of cylinder just is to the use demand of network.Referring to the drawings 3, another embodiment of the presently claimed invention provides a kind of network selecting method, including：
301st, UE is accessed by wlan network, the access point that such as UE passes through wlan network（Former side joint access point) data cube computation foundation request is sent to data gateway, data gateway is to UE returned data connection establishment response message, and the PDN connections between UE and data gateway are successfully established.
302nd, UE sends business and sets up request to application server； As UE need carry out music download service, then UE initiate business set up request arrive application server, ask down-load music.
Alternatively, if being provided with network selective information on UE, the business, which is set up in request, can include the network selective information.
303rd, application server sends business information to policy decision entity, and network selective information can be included in the business information.
Further, application server obtains network selective information, including：
Application server can obtain network selective information according to advance configuration, or obtain network selective information from the business foundation request received.
When application server has been pre-configured with network selective information, application server can obtain network selective information according at least one in the mark and type of service of user equipment, including：
1st, determine that the UE is automatic network selection or manual network selection according to UE mark, and be sent to policy decision entity；Or the access network type that the UE is supported is determined according to UE mark, and it is sent to policy decision entity.
2nd, the available network type of business that the UE is asked is determined according to the type of service, and is sent to policy decision entity, the available network type of such as the business current UE is WLAN networks or E-UTRAN networks.
3rd, according to UE mark and the type of the business of request, the available network type of business of UE current requests is determined, and is sent to policy decision entity, the available network type of such as the business current UE is wlan network or E-UTRAN networks.
When application server is set up from the business received obtains network selective information in request, the network selective information is the UE and/or the network selective information of the business.
304th, policy decision entity delineation of activities into Business Stream, and the policy control rule of decision business stream, the QoS of such as Business Stream.The policy control rule of Business Stream is sent to data gateway by policy decision entity, alternatively, and network selective information can also be sent to data gateway by policy decision entity.
305th, data gateway sets up the bearing tunnel of Business Stream according to policy control rule.The bearing tunnel is used The data message of business is carried out in carrying UE.
Further, when policy decision entity sends network selective information to data gateway, data gateway receives and preserves the network selective information.
So far, the foundation of UE institutes requested service, and the foundation carried between UE and data gateway are completed, the carrying and external network that UE can be by foundation carry out data exchange.
306th, when rete mirabile switching occurs for UE, UE sends connection foundation request by the access point of objective network and arrives data gateway；
As UE is moved, E-UTRAN overlay areas are moved to from WLAN coverage, UE WLAN signal decay, E-UTRAN signal enhancings, UE passes through target side network（E-UTRAN) send connection and set up request to mobile management entity MME, MME retransmits connection and sets up request message to gateway and data gateway, request data connection（PDN connections）It is switched to target side network.
Further, the handover request of the UE includes the information of the UE objective networks to be switched, and can also include the network selective information that UE is set.
If the 307, data gateway has policy control functions, data gateway and policy decision entity interaction, it is determined whether by the service switching of the UE PDN connections to objective network.
(one）If data gateway gets network selective information, data gateway determines whether the service switching by UE to objective network according to the network selective information of acquisition, or by UE which service switching to objective network.
(two）If data gateway does not get network selective information, then data gateway and policy decision entity are interacted, UE handover request is forwarded to policy decision entity, the information of the UE objective networks to be switched can be included in the handover request, policy decision entity is according to the network selective information of acquisition, the service switching by UE is determined whether to objective network, or by UE which service switching to objective network.
Wherein, UE each data cube computation such as PDN connections may include zero, one or more industry and determine whether UE Business Stream being switched to objective network, at least include： If A, UE available network type include the type of objective network, allow UE all Business Streams as data cube computation is switched to objective network together, UE Business Stream is otherwise rested on into current network or termination；Or
If UE is automatic network selection, allow all Business Streams by UE as data cube computation is switched to objective network together；If the UE is manual network selection, UE Business Stream is rested on into current network or termination；
If the available network type of B, Business Stream in the PDN connections includes the type of objective network, allow the Business Stream being switched to objective network, the Business Stream is otherwise rested on into current network or termination；Or
If the Business Stream in the PDN connections is automatic network selection, allow the Business Stream being switched to objective network；The Business Stream is rested on into current network or termination if the industry stream business in the PDN connections is manual network selection；
If C, the available network type of the ongoing Business Streams of the UE include the type of objective network, allow the Business Stream of the UE being switched to objective network, the Business Stream of the UE is otherwise rested on into current network or termination；Or
If if the ongoing Business Streams of UE are automatic network selections, allowed UE Business Stream as data cube computation is switched to objective network together；If the ongoing Business Streams of the UE are manual network selections, the business of the UE is rested on into current network or termination.
Further, UE can be switched to the policy control rule such as QoS of the Business Stream of objective network and be sent to data gateway by policy decision entity, and data gateway updates UE policy control rule.
If data gateway does not possess policy control functions, then data gateway discord policy decision entity is interacted, data gateway can use the strategy being locally configured to carry out QoS and/or charging control to Business Stream, directly be determined whether UE service switching to objective network according to the network selective information of acquisition.
308th, data gateway sets up data cube computation in objective network, and connection establishment response message is sent to UE by the access point of objective network.UE PDN connections are switched to objective network by data gateway, and the need comprising above-mentioned determination are switched to the Business Stream of objective network in the PDN connections. 309th, set up and carried according to the policy control of renewal rule between UE and data gateway, realize that business datum is exchanged by the carrying of foundation.
In embodiments of the present invention, network selective information can also be configured on data gateway, the network selection information of such as advance configuration service type on data gateway, or configures the network selective information of all kinds of UE all kinds of business.Data gateway can also obtain the network selective information at other network elements, and such as data gateway is from policy decision entity PCRF, access network discovery with selecting entity A NDSF, signing information storehouse（SPR or HSS), certificate server（AAA Server) etc. obtain network selective information etc..
Network selecting method provided in an embodiment of the present invention, it can be identified according to UE and at least one in type of service, and the network type of objective network determines whether UE current business to be switched into objective network, realize according to the setting of UE or operator to determine the switching of Business Stream, meet demand of the user under different scenes.Referring to the drawings 4, another embodiment of the presently claimed invention provides a kind of network selecting method, including：
401st, UE is accessed by wlan network, and such as UE sends data cube computation by wlan network and sets up request to data gateway, and data gateway is to UE returned data connection establishment response message, and the PDN connections between UE and data gateway are successfully established.
402nd, UE starts a business, and UE sends resource allocation request message, is traffic assignments resource；The resource allocation request message is sent to data gateway by access node；
As UE needs to carry out music download service, then UE passes through access node and sends resource allocation request message to data gateway.
Further, if being provided with network selective information on UE, the business that the UE is sent, which is set up in request, can include the network selective information of the UE.
403rd, when data gateway has policy control functions, interacted with policy decision entity, the regular such as qos parameter of acquisition strategy control, further, the network selective information of business can also be sent to policy decision entity by data gateway.
If data gateway does not have policy control functions, data gateway does not enter with policy decision entity Row interaction, data gateway can also control rule, such as qos parameter according to UE resource allocation request message generation strategy.
Further, network selective information can be set on data gateway, network selective information can also be set on policy decision entity, data gateway can also be interacted with other network elements, such as HSS, ANDSF, AAA Server, obtains network selective information.
404th, data gateway sets up the bearing tunnel of Business Stream according to policy control rule.The bearing tunnel is used to carry the data message that UE carries out business.
So far, complete the foundation of UE institutes requested service, and between UE and data gateway the carrying of business foundation, carrying and external network that UE can be by foundation carry out the data exchange of the business.
405th, when rete mirabile switching occurs for UE, UE sends connection foundation request by the access node of objective network and arrives data gateway；
As UE is moved, E-UTRAN overlay areas are moved to from WLAN coverage, UE WLAN signal decay, E-UTRAN signal enhancings, UE passes through target side network（E-UTRAN) send connection and set up request to mobile management entity MME, MME, which is retransmited, sets up request message to gateway and data gateway, request data connection（PDN connections）It is switched to target side network.
406th, data gateway and policy decision entity interaction, it is determined whether by UE service switching to objective network.
The content that network selective information can include is referred to the description in step 303, and data gateway determines whether the process of UE service switching to objective network being referred to step 307.
It should be noted that, if data gateway does not possess policy control functions, then data gateway discord policy decision entity is interacted, data gateway can use the strategy being locally configured to carry out QoS and/or charging control to Business Stream, directly be determined whether UE service switching to objective network according to the network selective information of acquisition.
407th, data gateway sets up data cube computation in target side network, sends connection establishment response message.UE PDN connections are switched to objective network transmitting-receiving by data gateway, and the need comprising above-mentioned determination are switched to the Business Stream of objective network in the PDN connections. 408th, set up and carried according to the policy control of renewal rule between UE and data gateway, realize that business datum is exchanged by the carrying of foundation.
Network selecting method provided in an embodiment of the present invention, can be according at least one in UE mark and type of service, and the network type of objective network determines whether UE current business to be switched into objective network, realize according to the configuration of UE or operator to determine the switching of Business Stream, meet demand of the user under different scenes.The embodiments of the invention provide a kind of network equipment, including：
Packet Data Network's connection of user equipment, the request message of objective network is switched to for receiving request by receiving unit 502；
Determining unit 504, for being determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition.
In another embodiment of the presently claimed invention, when the network equipment is data gateway, in addition to：Switch unit, for Packet Data Network connection to be switched into objective network, the Business Stream for needing to be switched to objective network that Packet Data Network's connection is determined comprising the determining unit 504.
In another embodiment of the presently claimed invention, when the network equipment is policy decision entity, in addition to：Transmitting element, for the business stream information that objective network is switched to the need for the determination to be sent into data gateway, so that Packet Data Network connection is switched to objective network, the Business Stream for needing to be switched to objective network that Packet Data Network's connection is sent comprising the transmitting element by the data gateway.
In another embodiment of the presently claimed invention, network selective information includes the network selection strategy corresponding with user equipment, including：
Network selection strategy can be configured according to customer equipment identification, such as：Configuring the available network type of the user equipment of type-A includes：Wlan network, the available network type of the user equipment of B types includes E-UTRAN networks etc.；Or the user equipment of configuration C types is manual network selection；The user equipment of D types is automatic network selection. In another embodiment of the presently claimed invention, network selective information includes the network selection strategy corresponding with type of service, including：
The available network type of first kind business, which can be set, includes WLAN and E-UTRAN networks, and the available network type of Second Type business includes wlan network, and the 3rd type service is manual network selection, and the 4th type service is automatic network selection etc..Wherein can be to type of service classification it is arbitrary, can the business based on same or like QoS as a type, or the business with identical source IP address or purpose IP address be used as type etc..
In another embodiment of the presently claimed invention, network selective information includes the network selection strategy corresponding with user equipment and type of service, including：
The available network type of the first kind business of A class user equipmenies, which can be set, includes WLAN and E-UTRAN networks, the available network type of the Equations of The Second Kind business of B class user equipmenies includes wlan network, the third window of the user equipment of C types is manual network selection, and the 4th class business of the user equipment of D types is automatic network selection etc..
It should be noted that, if the available network type of the business of user equipment or some type includes the type for the objective network for needing to switch, then show that the user equipment or business can be switched to objective network, otherwise, it is impossible to be switched to objective network.If the business of user equipment or a certain type is automatic network selection, show that the user equipment or business can be switched to objective network；If manual network selection, then show that the user equipment or business can not be switched to objective network.
Wherein, it is impossible to be switched to objective network, then it can select to continue to reside in current network or termination.In another embodiment of the presently claimed invention, when network selective information includes the network selection strategy corresponding with user equipment, the determining unit 504 determines that the user equipment is automatic network selection or manual network selection, if manual network selection, then allow the Business Stream of the user equipment resting on current network or termination；Or if automatic network selection, then allow the Business Stream by the user equipment to be switched to objective network；Or
When network selective information includes network selection strategy corresponding with user equipment, whether the network type that the determining unit 504 determines the user equipment and can accessed includes objective network, if including allowing The Business Stream of the user equipment is switched to objective network；Or if do not included, then allow the Business Stream of the user equipment resting on current network or termination.
In another embodiment of the presently claimed invention, when network selective information includes the network selection strategy corresponding with user equipment and type of service, the determining unit 504 determines that the ongoing Business Stream of the user equipment is automatic network selection or manual network selection, if manual network selection, then the Business Stream is allowed to rest on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
When network selective information includes the network selection strategy corresponding with user equipment and type of service, the determining unit 504 determines whether the available network type of the ongoing Business Stream of the user equipment includes objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
In another embodiment of the presently claimed invention, when network selective information includes the network selection strategy corresponding with type of service, it is automatic network selection or manual network selection that the determining unit 504, which determines that the Packet Data Network connects ongoing Business Stream, if manual network selection, then allow the Business Stream resting on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
When network selective information includes network selection strategy corresponding with type of service, the determining unit 504 determines that whether the Packet Data Network connects the available network type of ongoing Business Stream including objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
In embodiments of the present invention, the network equipment can be data gateway, such as packet data gateway PDN GW or policy decision entity PCRF.
In another embodiment of the presently claimed invention, wherein when network selective information includes setting network selection strategy according to the mark of user equipment, the network selective information can be only fitted to user equipment, policy decision entity PCRF, access network discovery and selection entity A NDSF, signing information storehouse（SPR or HSS), certificate server（AAA Server), at least one in application server and data gateway；Or When network selective information include according to the mark and type of service of user equipment set network selection strategy, and/or according to type of service set network selection strategy when, the network selective information can be only fitted to policy decision entity
PCRF, access network discovery and selection entity A NDSF, signing information storehouse（SPR or HSS), certificate server（AAA Server), at least one in application server and data gateway.
The network equipment provided in an embodiment of the present invention, can be according at least one in UE mark and type of service, and the network type of objective network determines whether UE current business to be switched into objective network, realize according to the configuration of UE or operator to determine the switching of Business Stream, meet demand of the user under different scenes.Referring to the drawings 6, the embodiments of the invention provide a kind of user equipment, including：
Dispensing unit 602, information is selected for Configuration network；
Transmitting element 604, for the network selective information of the configuration to be sent into the network equipment, so that the network equipment determines to need to be switched to the business stream information of objective network according to the network selective information.
In another embodiment of the presently claimed invention, network selective information includes network selection strategy corresponding with type of service；And at least one in network selection strategy corresponding with user equipment and type of service.
In another embodiment of the presently claimed invention, the network selection strategy corresponding with type of service includes：The available network type of first kind business, which can be set, includes WLAN and E-UTRAN networks, and the available network type of Second Type business includes wlan network, and the 3rd type service is manual network selection, and the 4th type service is automatic network selection etc..Wherein can be to type of service classification it is arbitrary, can the business based on same or like QoS as a type, or the business with identical source IP address or purpose IP address be used as type etc..
In another embodiment of the presently claimed invention, the network selection strategy corresponding with type of service and user equipment includes：The available network type of the first kind business of A class user equipmenies, which can be set, includes WLAN and E-UTRAN networks, the available network type of the Equations of The Second Kind business of B class user equipmenies includes wlan network, the third window of the user equipment of C types is manual network selection, and the 4th class business of the user equipment of D types is automatic network selection etc.. It should be noted that, if the available network type of the business of user equipment or some type includes the type for the objective network for needing to switch, then show that the user equipment or business can be switched to objective network, otherwise, it is impossible to be switched to objective network.If the business of user equipment or a certain type is automatic network selection, show that the user equipment or business can be switched to objective network；If manual network selection, then show that the user equipment or business can not be switched to objective network.
Wherein, it is impossible to be switched to objective network, then it can select to continue to reside in current network or termination.
Network in bright embodiment
The network selective information of configuration can be sent to the network equipment by the user equipment that the embodiment of the present invention is provided, when user equipment switches, the network equipment can be determined which service switching of user equipment to objective network according to network selective information, realize according to advance configuration to determine the business stream information for needing to switch, meet the differentiated demand of user equipment.
Referring to the drawings 7, the embodiments of the invention provide a kind of network selection system, including data gateway 702 and policy decision entity 704, wherein
Policy decision entity 704, request for receiving the transmission of data gateway 702 connects Packet Data Network the request message for being switched to objective network, determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition, and will determine to need the business stream information for being switched to objective network to be sent to data gateway 702;
Data gateway 702, determination for receiving the transmission of policy decision entity 704 needs to be switched to the business stream information of objective network, and Packet Data Network's connection is switched to objective network, Packet Data Network connection, which is included, to be needed to be switched to the Business Stream of objective network.
Network selection system provided in an embodiment of the present invention, can be according at least one in UE mark and type of service, and the network type of objective network determines whether UE current business to be switched into objective network, realize according to the configuration of UE or operator to determine the switching of Business Stream, meet demand of the user under different scenes.One of ordinary skill in the art will appreciate that：Realize all or part of step of above method embodiment It can be completed by the related hardware of programmed instruction, foregoing program can be stored in computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.The spirit and scope of invention.So, if these modifications and variations of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (1)

  1. Claims
    1st, a kind of network selecting method, it is characterised in that including：
    Receive request and Packet Data Network is connected to the request message for being switched to objective network；
    Determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition.
    2nd, network selecting method as claimed in claim 1, it is characterised in that also include：
    Packet Data Network connection is switched to objective network by data gateway, and the Business Stream of objective network is switched to the need for being determined in Packet Data Network's connection comprising the data gateway；Or
    The business stream information that objective network is switched to the need for determination is sent to packet data gateway by strategy according to plan entity, so that Packet Data Network connection is switched to objective network, the Business Stream for needing to be switched to objective network that Packet Data Network's connection is sent comprising the transmitting element by the data gateway.
    3rd, network selecting method as claimed in claim 1, it is characterised in that also include：
    Business Stream without switch to objective network is rested on into current network or termination.
    4th, the network selecting method as described in claims 1 to 3 is any, it is characterised in that
    The network selective information includes the network selection strategy corresponding with least one in user equipment and type of service.
    5th, network selecting method as claimed in claim 4, it is characterised in that also include：
    The network selective information is obtained at least one network element in user equipment, policy decision entity, home subscriber server, application server and data gateway.
    6th, network selecting method as claimed in claim 4, it is characterised in that described to be determined to need the Business Stream information for being switched to objective network to include according to the network selective information of acquisition：
    When network selective information includes the network selection strategy corresponding with user equipment, it is automatic network selection or manual network selection to determine the user equipment, if manual network selection, then allows the Business Stream of the user equipment resting on current network or termination；Or if automatic network selection, then allow the Business Stream by the user equipment to be switched to objective network；Or
    When network selective information includes network selection strategy corresponding with user equipment, whether the network type that determining the user equipment can access includes objective network, if including allowing the industry of the user equipment Business stream is switched to objective network；Or if do not included, then allow the Business Stream of the user equipment resting on current network or termination.
    7th, network selecting method as claimed in claim 4, it is characterised in that described to be determined to need the Business Stream information for being switched to objective network to include according to the network selective information of acquisition：
    When network selective information includes the network selection strategy corresponding with user equipment and type of service, it is automatic network selection or manual network selection to determine the ongoing Business Stream of the user equipment, if manual network selection, then the Business Stream is allowed to rest on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
    When network selective information includes the network selection strategy corresponding with user equipment and type of service, whether determine the available network type of the ongoing Business Stream of the user equipment includes objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
    8th, network selecting method as claimed in claim 4, it is characterised in that described to be determined to need the business information for being switched to objective network to include according to the network selective information of acquisition：
    When network selective information includes the network selection strategy corresponding with type of service, it is automatic network selection or manual network selection to determine that the Packet Data Network connects ongoing Business Stream, if manual network selection, then allow the Business Stream resting on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
    When network selective information includes network selection strategy corresponding with type of service, determine that whether the Packet Data Network connects the available network type of ongoing Business Stream including objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
    9th, a kind of network equipment, it is characterised in that including：
    Receiving unit, for asking to connect Packet Data Network into the request message for being switched to objective network；Determining unit, for being determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition. 10th, the network equipment as claimed in claim 9, it is characterised in that also include：
    Switch unit, for Packet Data Network connection to be switched into objective network, the Business Stream for needing to be switched to objective network that Packet Data Network's connection is determined comprising the determining unit；Or
    Transmitting element, for the business stream information that objective network is switched to the need for the determination to be sent into data gateway, so that Packet Data Network connection is switched to objective network, the Business Stream for needing to be switched to objective network that Packet Data Network's connection is sent comprising the transmitting element by the data gateway.
    11st, the network equipment as described in claim 9 or 10, it is characterised in that
    When network selective information includes the network selection strategy corresponding with user equipment, the determining unit determines that the user equipment is automatic network selection or manual network selection, if manual network selection, then allow the Business Stream of the user equipment resting on current network or termination；Or if automatic network selection, then allow the Business Stream by the user equipment to be switched to objective network；Or
    When network selective information includes network selection strategy corresponding with user equipment, whether the network type that the determining unit determines the user equipment and can accessed includes objective network, if including allowing the Business Stream by the user equipment to be switched to objective network；Or if do not included, then allow the Business Stream of the user equipment resting on current network or termination.
    12nd, the network equipment as described in claim 9 or 10, it is characterised in that
    When network selective information includes the network selection strategy corresponding with user equipment and type of service, the determining unit determines that the ongoing Business Stream of the user equipment is automatic network selection or manual network selection, if manual network selection, then the Business Stream is allowed to rest on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
    When network selective information includes the network selection strategy corresponding with user equipment and type of service, the determining unit determines whether the available network type of the ongoing Business Stream of the user equipment includes objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
    13rd, the network equipment as described in claim 9 or 10, it is characterised in that
    When network selective information includes the network selection strategy corresponding with type of service, the determining unit is determined It is automatic network selection or manual network selection that the Packet Data Network, which connects ongoing Business Stream, if manual network selection, then allows the Business Stream resting on current network or termination；Or if automatic network selection, then allow the Business Stream being switched to objective network；Or
    When network selective information includes network selection strategy corresponding with type of service, the determining unit determines that whether the Packet Data Network connects the available network type of ongoing Business Stream including objective network, if including, the Business Stream is then allowed to be switched to objective network, or if do not included, then allow the Business Stream to rest on current network or termination.
    14th, a kind of user equipment, it is characterised in that including：
    Dispensing unit, information is selected for Configuration network；
    Transmitting element, for the network selective information of the configuration to be sent into the network equipment, so that the network equipment determines to need to be switched to the business stream information of objective network according to the network selective information.
    15th, a kind of network selection system, it is characterised in that including data gateway and policy decision entity, wherein
    The policy decision entity, Packet Data Network's connection is switched to the request message of objective network for receiving the request that the data gateway is sent, determined to need to be switched to the business stream information of objective network according to the network selective information of acquisition, and need the business stream information for being switched to objective network to be sent to the data gateway determination；
    The data gateway, need to be switched to the business stream information of objective network for receiving the determination that the policy decision entity is sent, and Packet Data Network connection is switched to objective network, Packet Data Network's connection, which is included, to be needed to be switched to the Business Stream of objective network.
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