CN104254107B

CN104254107B - data distribution method, user equipment and network system

Info

Publication number: CN104254107B
Application number: CN201310262983.1A
Authority: CN
Inventors: 曾毓珑; 贺宁; 王戎
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2018-06-05
Anticipated expiration: 2033-06-27
Also published as: WO2014206245A1; CN104254107A

Abstract

The invention discloses a kind of data distribution method, user equipment and network system, wherein, which includes：User equipment is according to the characteristic information of the data packet received and the information of current network load, determine distributing strategy of the data packet under the current network load, the characteristic information of the data packet includes at least one of five-tuple information in header field information, mac address information, label information or its any combination；Distributing strategy of the user equipment according to the data packet under the current network load, shunting processing is carried out to the data packet.In the embodiment of the present invention, user equipment can be according to the characteristic information of data packet and the information of current network load, determine distributing strategy of the data packet under current network load, so as to carry out shunting processing to data packet, distributing strategy can be changed with the variation of network load, can reduce with the frequent information exchange of network side, the system resource of occupancy is few.

Description

Data distribution method, user equipment and network system

Technical field

The present invention relates to a kind of field of communication technology more particularly to data distribution method, user equipment and network systems.

Background technology

With the continuous popularization of the intelligent terminals such as mobile phone, tablet computer and the high speed development of mobile Internet business, number The trend exponentially increased according to business.At the same time, wireless communication technique also in continuous evolution and develops new to tackle Business demand, including the GSM/GPRS being widely used（Global System for Mobile communications/ General Packet Radio System, global mobile communication system/general grouping wireless system）, UMTS（Universal Mobile Telecommunications System, Universal Mobile Communication System）, stepping into the LTE of commercial stage（Long Term Evolution, Long Term Evolution）And WLAN（Wireless Local Area Network, WLAN）Deng. Wherein, WLAN has the characteristics that networking is simple, at low cost, industrial chain is ripe, can effectively share portion as the supplement of Cellular Networks Divide cellular services, it has also become the important networking of mobile operator and dilatation way.

While the fusion of cellular system and wlan network can bring bigger flexibility ratio to mobile operator, have also been introduced The complexity of multi-network cooperative management.On the one hand, the Collaborative Control of multiple networks, management need more powerful network controller and Business support system；On the other hand, for intelligent terminal, not only need to support that multimode is multi-link, it is also necessary to have software control The support in preparative layer face to realize the coordination and fusion netted more.The performance that a variety of radio port selections have also given terminal user very big is empty Between：Access speed, specific transactions selection secure attachment, the free network of selection, selection can be concurrently improved using multi-link Relatively low network of power consumption etc..Therefore, provide user by certain mechanism and carry out preference setting, will have greatly to improving user experience Benifit.Preferably to solve the problems, such as cellular system and WLAN fusions, 3GPP（3rd Generation partnership Project, third generation partner program）Also formulate a series of standard and carry out the function of the relevant network element of specification and in fact Existing network element intercommunication and the port jointly controlled and interactive information, including ANDSF（Access Network Discovery and Selection Function, access network discovery and selection function）、I-WLAN（Interworking-Wireless Local Area Network interconnect WLAN）、MAPIM（Multi Access PDN Connectivity and IP Flow Mobility, the connection of multiple access Packet Data Network and IP flow mobilities）Deng.

Wherein, MAPIM technologies can determine how business selects different carryings, but if business number in network side It is very big, it is necessary to controller and UE in the case of network load variation is faster（User Equipment, user equipment）It carries out a large amount of Interaction complete strategy setting, the overall performance of network may finally be reduced.

With open flows（OpenFlow）For the SDN of representative（Software Defined Network, software defined network） Technology is increasingly paid attention to be subject to academia and industrial quarters.OpenFlow's is mainly characterized by data（Forwarding）Face and control plane Separation, the route test that the control plane of logical centralization is optimized by the global network load being collected into, and passing through OpenFlow protocol integrated test system data surface forwarding units, such as the forwarding behavior of OpenFlow interchangers.OpenFlow agreements use stream （flow）Desalinated the concept of network hierarchy, no matter bottom be what kind of medium such as：Wired, radio open etc. or not Tube bottom layer runs what kind of agreement, as long as equipment supports OpenFlow agreements, it is possible to unified management and control are carried out, So OpenFlow can be as a kind of means of heterogeneous network converged management of mobile operator.But based on OpenFlow's When SDN schemes directly apply to existing cellular or UE, OpenFlow agreements in itself frequently believe by interaction Breath（Both include heartbeat message, also include the control information to each stream）It is larger to limited interface-free resources impact.

In conclusion in existing cellular system and the network of WLAN fusions, the procedural information interaction frequency of data distribution is carried out Numerous, the system resource of occupancy is big.

The content of the invention

Technical problem

The problem to be solved in the present invention is that the procedural information interaction of data distribution is frequent, and the system resource of occupancy is big.It provides Data distribution method, user equipment and the network system that a kind of information exchange is few, occupying system resources are few.

Technical solution

In view of this, to solve the above-mentioned problems, in a first aspect, the present invention proposes a kind of data distribution method, bag It includes：

User equipment determines the number according to the characteristic information of the data packet received and the information of current network load According to distributing strategy of the bag under the current network load, the characteristic information of the data packet is included in header field information At least one of five-tuple information, MAC address information, label information or its any combination；

Distributing strategy of the user equipment according to the data packet under the current network load, to the data Bag carries out shunting processing.

With reference to first aspect, in the first possible embodiment, the user equipment is according to the data packet received Characteristic information and current network load information, determine shunting plan of the data packet under the current network load It omits, including：

The user equipment is searched in application stream information storehouse and corresponded to according to the characteristic information of the data packet received Application message；

The user equipment is according to the application message and the information of the current network load, search strategy information Storehouse determines distributing strategy of the data packet under the current network load.

The possible embodiment of with reference to first aspect the first, in second of possible embodiment, the feature Information includes the protocol type in the five-tuple information, the bag name of the application message including the data packet and/or described Application name belonging to data packet, the user equipment is according to the characteristic information of the data packet received, using stream information Corresponding application message is searched in storehouse, including：

The user equipment searches corresponding use according to the protocol type of the data packet in the application stream information storehouse Family identifies；

The user equipment is searched according to the user identifier belonging to bag name and/or the data packet of the data packet Application name.

The possible embodiment of with reference to first aspect the first or second of possible embodiment, may at the third Embodiment in, the user equipment is according to the application message and the information of the current network load, search strategy Information bank determines distributing strategy of the data packet under the current network load, including：

The user equipment is searched corresponding according to the application message in the business classification chart of the policy information base Type of service；

The user equipment is according to the type of service and the information of the current network load, in the policy information Distributing strategy of the type of service under the current network load is searched in the distributing strategy table in storehouse.

The possible embodiment of with reference to first aspect the first or second of possible embodiment, in the 4th kind of possibility Embodiment in, the data distribution method further includes：

The user equipment updates network state information storehouse and/or according to current according to the information of current network load Policy information updates the policy information base.

The possible embodiment of with reference to first aspect the first or second of possible embodiment, in the 5th kind of possibility Embodiment in, the data distribution method further includes：

The user equipment inquiry application stream information storehouse, obtains currently running application；

Information and/or current policy information of the user equipment according to the current network load determine described The currently running distributing strategy applied under the current network load；

The user equipment is according in the currently running distributing strategy applied under the current network load Current forwarding port information, the corresponding flow table information of the update currently running application, and updating described using stream information The current forwarding port information of currently running application described in storehouse.

The 5th kind of possible embodiment with reference to first aspect, in the 6th kind of possible embodiment, in definite institute After stating the currently running distributing strategy applied under current network load, the update currently running application is corresponding Before flow table information, including：

If in the presence of need carry out seamless switching application, the user equipment obtain it is described need carry out seamless switching Application distributing strategy after, with network controller carry out seamless switching interaction.

The possible embodiment of with reference to first aspect the first or second of possible embodiment, in the 7th kind of possibility Embodiment in, the data distribution method further includes：

The user equipment searches the corresponding flow table of the data packet, if miss pair after the data packet is received The flow table item answered then initiates registration request to network controller；

The early period that the user equipment carries out Wi-Fi accesses with the network controller interacts.

In second aspect, the present invention proposes a kind of user equipment, which is characterized in that including：

Receiving unit, for received data packet；

Control unit, the characteristic information of the data packet received for basis and the information of current network load, Determine distributing strategy of the data packet under the current network load, the characteristic information of the data packet includes packet header word At least one of five-tuple information, mac address information, label information in segment information or its any combination；

Dividing cell, for the distributing strategy according to the data packet under the current network load, to the number Shunting processing is carried out according to bag.

With reference to second aspect, in the first possible embodiment, the user equipment further includes：

User profile module, for storage strategy information bank and application stream information storehouse；

Described control unit is additionally operable to the characteristic information of the data packet received according to the receiving unit, described Using searching corresponding application message in stream information storehouse；According to the application message and the information of current network load, search The policy information base determines distributing strategy of the data packet under the current network load.

With reference to the first possible embodiment of second aspect, in second of possible embodiment, the feature Information includes the protocol type in the five-tuple information, the bag name of the application message including the data packet and/or described Application name belonging to data packet, described control unit are additionally operable to the protocol type according to the data packet, believe in the application stream Breath searches corresponding user identifier in storehouse；According to the user identifier, the bag name of the data packet and/or the data packet are searched Affiliated application name.

It, may at the third with reference to the first possible embodiment or second of possible embodiment of second aspect Embodiment in, described control unit is additionally operable to according to the application message, in the business classification chart of the policy information base It is middle to search corresponding type of service；According to the type of service and the information of the current network load, in the strategy letter It ceases in the distributing strategy table in storehouse and searches distributing strategy of the type of service under the current network load.

With reference to the first possible embodiment or second of possible embodiment of second aspect, in the 4th kind of possibility Embodiment in, the user profile module is additionally operable to storage network state information storehouse；

Described control unit be additionally operable to according to the information of current network load update the network state information storehouse and/or The policy information base is updated according to current policy information.

With reference to the first possible embodiment or second of possible embodiment of second aspect, in the 5th kind of possibility Embodiment in, described control unit is additionally operable to inquire about the application stream information storehouse, obtains currently running application；

According to the information of the current network load and/or current policy information, determine it is described it is currently running should Distributing strategy under the current network load；

Current forwarding end in the currently running distributing strategy applied under the current network load Message ceases, and updates the corresponding flow table information of the currently running application, and updates current described in the application stream information storehouse The current forwarding port information of the application of operation.

With reference to the 5th kind of possible embodiment of second aspect, in the 6th kind of possible embodiment, the control Unit is additionally operable to after the currently running distributing strategy applied under the current network load is determined, updates institute Before stating the corresponding flow table information of currently running application, if in the presence of the application for needing progress seamless switching, described in acquisition After the distributing strategy for needing the application of progress seamless switching, seamless switching interaction is carried out with network controller.

With reference to the first possible embodiment or second of possible embodiment of second aspect, in the 7th kind of possibility Embodiment in, described control unit is additionally operable to after the data packet is received, and searches the corresponding flow table of the data packet, If the corresponding flow table item of miss, registration request is initiated to the network controller；Wi-Fi is carried out with the network controller Interaction early period of access.

In the third aspect, the present invention proposes the network system of a kind of cellular system and WLAN fusion, including：Net Network controller and user equipment；

The user equipment uses the user equipment of any one structure in the embodiment of the present invention；

The network controller, for issuing the information of current network load and/or current to the user equipment Policy information.

Advantageous effect

In the embodiment of the present invention, can number be determined according to the characteristic information of data packet and the information of current network load It, can be with network load so as to carry out shunting processing to data packet according to distributing strategy of the bag under current network load Variation changes distributing strategy, it is possible to reduce with the frequent information exchange of network side, the system resource of occupancy is few.

Description of the drawings

Comprising in the description and the Figure of description of a part for constitution instruction and specification together illustrate this Exemplary embodiment, feature and the aspect of invention, and principle for explaining the present invention.

Fig. 1 is the flow chart of the data distribution method of the embodiment of the present invention one；

Fig. 2 a are the flow chart of the data distribution method of the embodiment of the present invention two；

Fig. 2 b are the schematic diagram that stream information storehouse is applied in the data distribution method of the embodiment of the present invention two；

Fig. 3 is the flow chart of the data distribution method of the embodiment of the present invention three；

Fig. 4 a are the schematic diagram of the application scenarios of the data distribution method of the embodiment of the present invention four；

The flow chart that Fig. 4 b register for UE in the data distribution method of the embodiment of the present invention four；

The flow chart that Fig. 4 c forward for UE in the data distribution method of the embodiment of the present invention four；

Fig. 4 d are updated for the information and/or policy information of network load in the data distribution method of the embodiment of the present invention four The flow chart of journey；

Fig. 4 e are the newer flow chart that seamless switching is needed in the data distribution method of the embodiment of the present invention four；

Fig. 5 is the structure diagram of the user equipment of the embodiment of the present invention five；

Fig. 6 is the structure diagram of the user equipment of the embodiment of the present invention six；

Fig. 7 shows the structure diagram of the user equipment of the embodiment of the present invention seven.

Specific embodiment

Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing Reference numeral represent functionally the same or similar element.Although the various aspects of embodiment are shown in the drawings, remove It non-specifically points out, it is not necessary to attached drawing drawn to scale.

Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary " Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.

In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below. It will be appreciated by those skilled in the art that without these details, the present invention can equally be implemented.In other example, It is not described in detail for known method, means, element and circuit, in order to highlight the purport of the present invention.

Embodiment one

Fig. 1 is the flow chart of the data distribution method of the embodiment of the present invention one, as shown in Figure 1, the data distribution method can To comprise the following steps：

Step 101, user equipment are according to the characteristic information of the data packet received and the information of current network load, really Fixed distributing strategy of the data packet under current network load, the characteristic information of the data packet include header field information In five-tuple information, MAC（Medium Access Control, media access control）Address information, label information（TAG） At least one of or its any combination；

Specifically, in the network merged in cellular system and WLAN, user equipment（UE）In policy information base can be Pre-install offline or network controller is handed down to UE by control channel or data packet, also, network controller can To update the policy information base in UE.Wherein, the characteristic information of data packet can be obtained by parsing the packet header of data packet, example Such as：The label informations such as five-tuple information, mac address information, 2.5 layers of TAG or VLAN TAG in header packet information field all may be used Using alone or in combination as the characteristic information of the data packet.The information of current network load can be in network state information storehouse It finds or network controller issues, can be the corresponding network load grade of different network load states, net Network load value or other information for being used to identify network load state.In addition, in user equipment in the interchanger based on stream It can also include more statistical information, such as：Each port information, each queuing message, each flow table letter of user equipment The statistics of breath etc., these statistics can also be used as the foundation of definite distributing strategy.

The distributing strategy of step 102, user equipment according to the data packet under current network load, to the data Bag carries out shunting processing.

If the distributing strategy under current network load is found in policy information base, such as：The data packet is being worked as Preceding network load be " 1 ", represent WLAN can use, 2G/3G loads are normal, and network load be " 1 " when Route Selection be WLAN, then the distributing strategy of the data packet is to forward the data packet from the corresponding ports of WLAN.

In the present embodiment data distribution method, user equipment can be born according to the characteristic information and current network of data packet The information of lotus determines distributing strategy of the data packet under current network load, so as to carry out shunting processing, user to data packet Equipment can change distributing strategy with the variation of network load, it is possible to reduce with the frequent information exchange of network side, occupancy is Resource of uniting is few.

Embodiment two

Fig. 2 a are the flow chart of the data distribution method of the embodiment of the present invention two, and step identical with Fig. 1 labels Fig. 2 a has Have identical meaning, as shown in Figure 2 a, with above-described embodiment difference lies in：In order to according to different APP（Using, Application）It is shunted, can be set using stream information storehouse（APP-Flow Information Base）.Such case Under, step 101 can specifically include：

Step 201, user equipment are searched in application stream information storehouse and corresponded to according to the characteristic information of the data packet received Application message；

Specifically, the characteristic information can include the protocol type in the five-tuple information of data packet, the application letter Breath can include the data packet bag name and/or the data packet belonging to application name, step 201 can include：

According to the protocol type of the data packet, corresponding user identifier is searched in application stream information storehouse；Wherein, data The protocol type of bag is one in the five-tuple information parsed from the packet header of data packet.Then, marked according to the user Know, search the data packet bag name and/or the data packet belonging to application name.

Wherein, using application message can be stored for example in stream information storehouse：Bag name and/or application name and the mapping of stream are closed System, Fig. 2 b are the schematic diagram that stream information storehouse is applied in the data distribution method of the embodiment of the present invention two, as shown in Figure 2 b, in one kind In mode in the cards, stream can be five-tuple information, and the five-tuple information of data packet includes：Destination IP, destination interface, source IP, source port and protocol type.Connected applications name and current forwarding port information, some can be inquired about in application stream information storehouse The corresponding application message of five-tuple information and current forwarding port information, to facilitate the controller of user equipment for example：UE Controller does shunting decision-making based on application specifically.

Step 202, user equipment are according to the application message and the information of current network load, search strategy information Storehouse determines distributing strategy of the data packet under current network load.

Specifically, step 202 can include：User equipment is according to the application message, in the industry of the policy information base Corresponding type of service is searched in business classification chart；According to the type of service and the information of the current network load, in institute It states and distributing strategy of the type of service under current network load is searched in the distributing strategy table of policy information base.

Wherein, the policy information for UE Controller decision-makings can be stored in policy information base, includes whether to open intelligence It can shunt, user is to intelligent distributing strategy for shunting configuration information, mobile operator of specific application etc..The embodiment of the present invention In, policy information base can be made of two tables：APP（Using Application）Business classification chart and distributing strategy Table.It can include the correspondence of type of service and application message etc. in business classification chart, can include industry in distributing strategy table The correspondence of service type, the information of network load and distributing strategy.

Wherein, classified it into business classification chart, it is possible to reduce the list item number of distributing strategy table.Specifically, exist In a kind of mode in the cards, by the signature analysis to different business, a kind of classification side for being provided in the embodiment of the present invention Method, as shown in table 1.

1 business classification chart of table

Wherein, table 1 is only a kind of example, and the method for business classification is not limited only to mode described in table 1, can also use it His mode classification, such as：It is divided into low time delay class business, high bandwidth class business, low packet loss class business, low jitter class business etc., As long as the service request of differentiation can be met after business classification, interactive information and tactful entry number are reduced.

In addition, the information of current network load includes the different corresponding network load grades of network load state, net Network load value or other information for being used to identify network load state.Such as：Network load can be divided into several grades, if The distributing strategy under heterogeneous networks load level is put, tactful item number and interactive information can also be reduced.In the embodiment of the present invention, net The classification of network load can combine cellular network load and wlan network load determines, as shown in table 2.

2 network load of table is classified

Wherein, table 2 is only a kind of example, and the stage division of network load is not limited to the method that table 2 provides, can also use The stage division of other network loads, such as：Thinner different points can be carried out by 2G/3G network loads percentage Grade, in addition, can also further classification handle the load of WLAN.Load level information in table 2 can be believed with network state Cease storehouse（Network State Information base）The load condition of the network of middle storage is consistent.

Specific distributing strategy can be the combination of different types of service and network load grade in distributing strategy table, such as Shown in table 3.

3 distributing strategy table of table

Type of service：	Route Selection
		IM	Network load 0-2：2G/3G network loads 3：WiFi
VoIP	Network load 0-3：2G/3G
		Streaming	Network load 0：2G/3G network loads 1-3：WiFi
SNS	Network load 0：2G/3G network loads 1-3：WiFi
		Web Browsing	Network load 0-1：2G/3G network loads 2-3：WiFi
Cloud	Network load 0-2：2G/3G network loads 3：WiFi
		Email	Network load 0-2：2G/3G network loads 3：WiFi
File Transfer	Network load 0：2G/3G network loads 1-3：WiFi
		Gaming	Network load 0-2：2G/3G network loads 3：WiFi
M2M	Network load 0：2G/3G network loads 1-3：WiFi
		Others	Network load 0：2G/3G network loads 1-3：WiFi

Wherein, the various combination mode of the only a kind of example of table 3, business and routing policy is not limited only to the realization side of table 3 Formula can also use the combined shunting strategy of the type of service that other meet and network load grade.

In the present embodiment data distribution method, user equipment can be born according to the characteristic information and current network of data packet The information of lotus determines distributing strategy of the data packet under current network load, so as to carry out shunting processing, user to data packet Equipment can change distributing strategy with the variation of network load, it is possible to reduce with the frequent information exchange of network side, occupancy is Resource of uniting is few.Also, user equipment can not only shunt data packet based on port, be flowed by policy information base and application Information bank can identify the specific application that data packet is belonged to, and can realize the shunting of application；In addition, pass through business point Class, network load classification, can effectively reduce interactive information, improve the utilization rate of channel.

Embodiment three

Fig. 3 be the embodiment of the present invention three data distribution method flow chart, step identical with Fig. 1, Fig. 2 a labels Fig. 3 With identical meaning, as shown in figure 3, with above-described embodiment difference lies in：The data distribution method can also include network The newer process of information and/or policy information of load：User equipment updates network-like according to the information of current network load State information bank and/or the policy information base is updated according to current policy information, specifically may comprise steps of：

Step 301, user equipment receive the information for the current network load that network controller issues and/or current plan Slightly information；

If step 302, the version of the information of the current network load are than the network load in network state information storehouse Information version it is new, then the information of the network load in the network state information storehouse is updated to described current by user equipment Network load information；

If the version of step 303, the current policy information is than the version of the policy information in the policy information base Newly, then the policy information in the policy information base is updated to the current policy information by user equipment.

After step 303, which can also include the renewal process using stream information storehouse, specifically can be with Comprise the following steps：

Step 304, the user equipment inquiry application stream information storehouse, obtain currently running application；

The information and/or current policy information of step 305, user equipment according to the current network load determine The currently running distributing strategy applied under current network load；

Step 306, user equipment are according to the currently running shunting plan applied under the current network load Current forwarding port information in slightly updates the corresponding flow table information of the currently running application, and updates the application stream The current forwarding port information of currently running application described in information bank.

Further, which can also include the process of seamless switching, definite described currently running After applying the distributing strategy under current network load, the corresponding flow table information of the update currently running application it Before, it can include：If in the presence of the application for needing to carry out seamless switching, the application for needing to carry out seamless switching is being obtained After distributing strategy, seamless switching interaction is carried out with network controller.

Yet further, before step 101 is performed, if there is new data packet needs to send, the data distribution method It can also include the flow of UE registrations：After the data packet is received, the corresponding flow table of the data packet is searched, if miss Corresponding flow table item then initiates registration request to the network controller；Wi-Fi is carried out with the network controller （Wireless-fidelity, Wireless Fidelity）Interaction early period of access.

In the present embodiment data distribution method, user equipment can be born according to the characteristic information and current network of data packet The information of lotus determines distributing strategy of the data packet under current network load, so as to carry out shunting processing, user to data packet Equipment can change distributing strategy with the variation of network load, it is possible to reduce with the frequent information exchange of network side, occupancy is Resource of uniting is few.Also, user equipment can not only shunt data packet based on port, be flowed by policy information base and application Information bank can identify the specific application that data packet is belonged to, and can realize the shunting of application；In addition, pass through business point Class, network load classification, can effectively reduce interactive information, improve the utilization rate of channel.In addition, it can be received in the present embodiment The information of network load and the update of policy information ensure the accuracy of the information of network load so that user equipment can be accurate The true dynamic of the variation based on network load effectively changes distributing strategy, better ensures that the service quality of application, further Reduce the interaction of control information.

Example IV

Fig. 4 a are the schematic diagram of the application scenarios of the data distribution method of the embodiment of the present invention four, as shown in fig. 4 a, in bee In nest system and the network of WLAN fusions, network controller 41 and user equipment can be included（UE）40.

Wherein, network controller（Network Controller）41 be a function module of network side, can be one A stand-alone network elements can also be built in existing BSC（Base Station Controller, base station controller）、RNC （Radio Network Controller, radio network controller）Or AC（Access Controller, access controller）Deng In controller or support OpenFlow controller（OpenFlow Controller, OFC）.Its major function be to User issues the real-time status information of network, also can distributing policy information for example：Routing policy.The information of above-mentioned interaction by with The information exchange of UE sides correlation module realizes that the mode of information exchange is unlimited, can be data packet, signaling or broadcast message.

UE can include control based on SDN and forwarding surface function, and the extension of User Defined strategy, using identification Extension and to the information exchange of network load, state and shunt the Function Extension of decision-making.Such as：Can to the software of UE into Row extension makes it support OpenFlow, such as：In Android operation system（Android OS）UE in increase the exchange based on stream Machine（Flow-based Switch）42, can be that a kind of software switch realizes program；And increase UE controllers on UE（UE Controller）43 to control the forwarding of data surface, while increases the control port of control plane interactive function in UE end to end （Control Interface）44, so as to realize the control of UE shuntings in the case where not changing network infrastructure.

Specifically, the interchanger based on stream in UE（Flow-based Switch）42 can be one based on OpenFlow A software（Virtually）Interchanger is realized, as the data surface forwarding module of SDN schemes, be mainly used for controlling the forwarding of data packet, Header packet information of change data bag etc..One basic characteristics of the interchanger based on stream are, by one or more flow table come Control the forwarding of data packet, and the modification of flow table and control can by local or distal end controller by protocol interaction come Rule in change flow table is for example：Port is currently forwarded in action message.In one embodiment of the present of invention, one kind can be used The virtual switch increased income（Open vSwitch）Selection as SoftSwitch.In other embodiments of the invention, it is based on The interchanger of stream is not limited to Open vSwitch, and others are based on stream（flow）Software switch realization can also be used as scheme Candidate.

UE controllers in UE can be final to control by protocol interaction to change the flow table item in the interchanger based on stream The forwarding of data packet.The forwarding decision of UE controllers will based on the content in network state information storehouse and policy information base come into Row.For the shunting of application or process-level, it is also necessary to connected applications stream information storehouse（APP-Flow Information base）In information carry out decision-making.

In addition, user profile can also be included in UE（Profile）45, for carrying out carrying out preference to user behavior It sets, can specifically preserve using contents such as stream information storehouse, network state information storehouse and policy information bases.On the one hand, it is necessary to by User chooses whether to open Intelligent hot point discovery, the function of intelligently shunting.On the other hand, user can be set by Profile The distributing strategy of some specific applications selects different ports, for example, the port IF_1 shown in Fig. 4 a is 3G/4G ports, IF_2 For Wi-Fi ports, IF_3 is BT ports, as video traffic can select Wi-Fi ports.The configuration information of user can store In policy information base（Policy Information Base）In.Wherein, the configuration information of user can include high-speed, low The demands such as charging, low time delay can also be other information, can be specifically configured according to application scenarios.

Control port（Control Interface）Interaction port of the module as UE and network controller, can complete UE sides intelligently shunting it is relevant registration interaction, UE Partial State Informations report and the information of network load, network strategy letter The functions such as the reception of breath.

It can include following basic procedure during the data distribution method of the present embodiment is performed：

Flow one, definition strategy information

Each operator can formulate relevant distributing strategy table based on oneself business characteristic and marketing strategy.The present invention A kind of embodiment in, business classification is carried out by table 1, network load classification carried out by table 2, distributing strategy setting carried out by table 3. Wherein, the policy information base in UE can be pre-install offline or network controller pass through control channel or data packet UE is handed down to, also, network controller can update the policy information base in UE.

Flow two, UE register flow paths

The flow chart that Fig. 4 b register for UE in the data distribution method of the embodiment of the present invention four, as shown in Figure 4 b, specifically may be used To comprise the following steps：

Step 401, when UE needs to forward new data packet, can be by UE controllers if giving tacit consent to no flow table（UE Controller）Processing；

Step 402, UE controllers pass through control port（Control Interface）To network controller（Network Controller）Such as：BTS（Base Transceiver Station, base transceiver station）、 BSC、NodeB、eNodeB、 RNC etc. sends registration request；

Step 403, network controller judge whether the cell that UE is belonged to can be shunted using Wi-Fi, and are carried out with UE Interaction early period of Wi-Fi accesses.In the process, network controller can be to UE distributing policies information and the letter of network load Breath, UE can then update its policy information base and network for being preserved according to the policy information and the information of network load received Content in status information storehouse.

Step 404, when UE accesses Wi-Fi and 3G simultaneously, complete registration process.It can also be wrapped during UE is registered Include the discovery procedure of ANDSF hot spots and related interaction content.

Flow three, UE forwarding processes

The flow chart that Fig. 4 c forward for UE in the data distribution method of the embodiment of the present invention four, as illustrated in fig. 4 c, specifically may be used To comprise the following steps：

Network connection is initiated in the application of step 501, UE sides first；The data packet default route of application is to a virtual port On.In one embodiment of the present of invention, the mode of default route is manually set, specifies a virtual port as the silent of application Recognize routing, all data for reaching the virtual port are intercepted and captured by interchanger based on stream, and pass through modification source, purpose MAC The form of location goes out data forwarding from the actual network port.

Step 502, the interchanger based on stream intercept and capture the data packet for reaching the virtual port, inquire about flow table.If miss Details are for example：Five-tuple information in data packet etc., goes to step 503；If hit, goes to step 507.

Data packet is reported to UE controllers by step 503 based on the interchanger of stream.

Step 504, the inquiry of UE controllers, if miss, go to step 505 using stream information storehouse；If hit, turns to walk Rapid 506.

Step 505, the five-tuple information searching in data packet to corresponding bag name or application name.One of the present invention In embodiment, based on the protocol type of five-tuple information, such as：" 6 " represent TCP（Transmission Control Protocol, transmission control protocol）, " 17 " represent UDP（User Datagram Protocol, User Datagram Protocol）, Corresponding network connection state can be obtained by inquiry/proc/net/tcp or/proc/net/udp in Linux, obtain five The corresponding uid of tuple information（User identity, user identifier）.Again from mounted APK（Android Package, peace Tall and erect installation kit）Corresponding bag name or application name are inquired about based on uid in list.Then the bag name according to corresponding to five-tuple information or Application name update is using stream information storehouse.

Step 506, inquiry network state information storehouse obtain the information of current network load.

Step 507, query strategy information bank obtain the distributing strategy under current network load of application.Such as：It can Corresponding type of service is applied to be found first from the business classification chart of policy information base, if miss type of service, Then the type of service of the application may be not comprised in the default application that can be shunted, and can use current network load Under, the distributing strategy of default acquiescence shunt/forward；It, can be from policy information if having hit a certain type of service The corresponding distributing strategy of the type of service under current network load is inquired about in the distributing strategy table in storehouse, if miss shunts Strategy using the distributing strategy given tacit consent under the network load, is otherwise shunted by the distributing strategy of hit.

It specifically,, can be according to shunting plan to ensure that server end returned data can normally receive in actual repeating process This in slightly applies corresponding current forwarding port information, and the packet header of the data packet of the application to being routed to virtual port is repaiied Change, such as：The source MAC of header packet information is revised as actually forwarding to the MAC Address of the physical port of the data packet, purpose MAC is repaiied It is changed to the MAC Address of respective gateway, the i.e. MAC Address of the MAC Address of 2G/3G gateways or WLAN AP；Source IP is revised as reality Border forwards the IP address of physical port, and purpose IP address is constant.

Using the current forwarding port information in stream information storehouse, UE repeating process terminates for step 508, update.

Step 509 is forwarded according to the rule in flow table, it may be noted that still needing to perform repairing for the packet header similar in step 507 Change, UE repeating process terminates.

Flow four, strategy, load more new technological process

Fig. 4 d are updated for the information and/or policy information of network load in the data distribution method of the embodiment of the present invention four The flow chart of journey, as shown in figure 4d, the strategy, network load information renewal process it is similar, can specifically include following step Suddenly：

Step 601, the control port of UE sides（Control Interface）Receive the network load that network controller issues Information and/or policy information.

Whether the version of the information for the network load that step 602, the judgement of the control port of UE sides receive compares network state Content in information bank is new, if it is, the content in update network state information storehouse.Control port can also judge to receive Policy information version it is whether newer than the content in policy information base；If it is, the content in update policy information base, and It triggers UE controllers and carries out subsequent strategy execution.

Step 603, the inquiry of UE controllers are using stream information storehouse（APP-Flow Information Base）, can obtain The information of currently running application.

Step 604, UE controllers inquiry network state information storehouse can obtain the information of current network load, inquire about plan Slightly information bank can obtain current policy information.

Step 605, UE controllers information and/or policy information based on newest network load, joint decision can obtain To the distributing strategy each applied.

Step 606 forwards port for example for needing to change：Switching or the application of shunting, UE controllers update flow table letter Breath makes its corresponding former flow table information failure, and is updated to new flow table information.

After step 607, update flow table success, the port information in stream information storehouse is applied in update, and UE controllers send out the application The raw port information changed is updated to currently forward port information.

After load, policy information update, without the application switched over, retain original flow table information and work as forward Send out port information.

For specific application, the continuity applied if necessary to holding network switching or after shunting is, it is necessary to increase seamless The related interaction of switching.In particular it is necessary to holding part address information before the handover after do not change, Fig. 4 e for this The newer flow chart of seamless switching is needed in the data distribution method of inventive embodiments four, as shown in fig 4e, compared with Fig. 4 d, The main distinction is, after step 602, can also include：

Whether step 701, control port judge whether to need to carry out seamless switching, i.e., need to keep network switching or divide The continuity applied after stream, in the case where needing seamless switching, control port notice UE controller update flow table information.

Then, after step 603 is performed, UE controllers can be inquired about obtains current online application letter using stream information storehouse Breath and the corresponding current forwarding port information of each application.Before step 604 is performed, it can include：

Step 702, UE controllers are interacted with policy information base to be judged whether to need to carry out seamless switching.

Then the necessary information needed for step 604 acquisition joint decision is performed again：Query strategy information bank acquisition need into The information of the application of row seamless switching, such as：Application name, inquiry network state information storehouse obtain the letter of current network load Breath；After execution step 605UE controllers determine the distributing strategy each applied, further include：

Step 703, UE controllers carry out the relevant interaction of seamless switching by control port and network controller.

Then perform again step 606 update switch respectively apply corresponding flow table information.Step 607 is performed to update Using the port information respectively applied in stream information storehouse.

It is required that the network load renewal process under seamless switching situation is similar with policy information renewal process, difference is After information on load update, newer information bank is network state information storehouse, other processes are similar, do not do repeated explanation herein.

In the present embodiment data distribution method, UE can be according to the characteristic information of data packet and the letter of current network load Breath, determines distributing strategy of the data packet under current network load, can be with net so as to carry out shunting processing to data packet The variation of network load changes distributing strategy, it is possible to reduce with the frequent information exchange of network side, the system resource of occupancy is few.Also, UE can not only shunt data packet based on port, can also identify data by policy information base and application stream information storehouse The specific application belonged to is wrapped, realizes the shunting of application；In addition, classified by business, network load classification, Ke Yiyou Effect reduces interactive information, improves the utilization rate of channel；Further, user profile is passed through（profile）, can to use Family can set distributing strategy according to the preference of oneself, increase the independence of user.Therefore, the present embodiment is a kind of lightweight UE SDN schemes can increase overhead to avoid netfilter/iptables is used, pass through the base in UE SDN schemes Increase the update that control port receives network load and strategy on plinth, be capable of the variation dynamic of sensing network load, effectively change Become distributing strategy, better ensure that the service quality of application, avoid frequent, the substantial amounts of control letter in pure OpenFlow networks Breath interaction.For a large amount of fire walls or NAT controlled there are operator（Network Address Translation, network It converts location）The network of equipment can also reduce control information interaction, effective to realize shunting.

Embodiment five

Fig. 5 is the structure diagram of the user equipment of the embodiment of the present invention five, as shown in figure 5, the user's equipment includes：

Receiving unit 51, for received data packet；The specific control port that may refer to UE in above-described embodiment performs number According to the associated description of shunt method.

Control unit 53, the characteristic information of data packet received for basis and the information of current network load, really Fixed distributing strategy of the data packet under current network load, the characteristic information of the data packet include header field information In five-tuple information, mac address information, at least one of label information or its any combination；Specifically it may refer to The UE controllers for stating UE in embodiment perform the associated description of data distribution method.

Dividing cell 55, for the distributing strategy according to the data packet under current network load, to the data Bag carries out shunting processing.The specific interchanger based on stream that may refer to UE in above-described embodiment performs the phase of data distribution method Close description.

The control unit of the present embodiment user equipment can be according to the characteristic information of data packet and current network load Information, determines distributing strategy of the data packet under current network load, and dividing cell can be according to the distributing strategy to data Bag carries out shunting processing, and user equipment can change distributing strategy with the variation of network load, it is possible to reduce with network side frequency Numerous information exchange.

Embodiment six

Fig. 6 is the structure diagram of the user equipment of the embodiment of the present invention six, and component identical with Fig. 5 labels Fig. 6 has phase Same meaning, as shown in fig. 6, difference lies in the user's equipment can also include with above-described embodiment：

User profile module 61, for storage strategy information bank and application stream information storehouse；

Described control unit 53 is additionally operable to the characteristic information of the data packet received according to the receiving unit 51, described Using searching corresponding application message in stream information storehouse；According to the application message and the information of current network load, search The policy information base determines distributing strategy of the data packet under current network load.

In a kind of possible embodiment, the characteristic information includes the protocol type in the five-tuple information, institute The application name belonging to bag name and/or the data packet of the application message including the data packet is stated, described control unit 53 is also used In the protocol type according to the data packet, corresponding user identifier is searched in the application stream information storehouse；According to the use Family identify, search the data packet bag name and/or the data packet belonging to application name.

In a kind of possible embodiment, described control unit 53 is additionally operable to according to the application message, in the plan Slightly corresponding type of service is searched in the business classification chart of information bank；According to the type of service and the current network load Information, shunting of the type of service under current network load is searched in the distributing strategy table of the policy information base Strategy.

In a kind of possible embodiment, the user profile module 61 is additionally operable to storage network state information Storehouse；

Described control unit 53 be additionally operable to according to the information of current network load update the network state information storehouse and/ Or the policy information base is updated according to current policy information.

In a kind of possible embodiment, described control unit 53 is additionally operable to receive that network controller issues is current The information of network load and/or current policy information；If the version of the information of the current network load compares network state The version of the information of network load in information bank is new, then updates the information of the network load in the network state information storehouse For the information of the current network load；If the version of the current policy information is than the strategy in the policy information base The version of information is new, then the policy information in the policy information base is updated to the current policy information.

In a kind of possible embodiment, described control unit 53 is additionally operable to inquire about the application stream information storehouse, obtains Currently running application；

According to the information of the current network load and/or current policy information, determine it is described it is currently running should Distributing strategy under current network load；

In a kind of possible embodiment, described control unit 53 is additionally operable to determining described currently running apply After distributing strategy under current network load, before updating the corresponding flow table information of the currently running application, if depositing The application of progress seamless switching is being needed, then after the distributing strategy of the application for needing to carry out seamless switching is obtained, with net Network controller carries out seamless switching interaction.

In a kind of possible embodiment, described control unit 53 is additionally operable to after the data packet is received, and is searched If the corresponding flow table item of miss, registration request is initiated to the network controller for the corresponding flow table of the data packet；With institute State interaction early period that network controller carries out Wi-Fi accesses.

The control unit of the present embodiment user equipment can be according to the characteristic information of data packet and current network load Information, determines distributing strategy of the data packet under current network load, and dividing cell can be according to the distributing strategy to data Bag carries out shunting processing, and user equipment can change distributing strategy with the variation of network load, it is possible to reduce with network side frequency Numerous information exchange.Also, user equipment can not only shunt data packet based on port, can also pass through policy information base The specific application belonged to application stream information storehouse identification data packet, realizes the shunting of application；In addition, pass through business point Class, network load classification, can effectively reduce interactive information, improve the utilization rate of channel；In addition, it can be received in the present embodiment The information of network load and the update of policy information ensure the accuracy of the information of network load so that user equipment can be accurate The true dynamic of the variation based on network load effectively changes distributing strategy, better ensures that the service quality of application, further Reduce the interaction of control information.User profile（profile）, divide it is also possible that user can be set according to the preference of oneself Flow Policy increases the independence of user.

Embodiment seven

Fig. 7 shows the structure diagram of the user equipment of the embodiment of the present invention seven.The user equipment can possess meter The host server of calculation ability, personal computer PC or portable portable computer or terminal etc..It is of the invention specific real Example is applied not limit the specific implementation of calculate node.

The user equipment includes processor (processor) 71, communication interface (Communications Interface) 72, memory (memory array) 73 and bus 74.Wherein, processor 71, communication interface 72, Yi Jicun Reservoir 73 completes mutual communication by bus 74.

Communication interface 72 with network element for communicating, and wherein network element is included such as Virtual Machine Manager center, shared storage.

Processor 71 is used to perform program.Processor 71 may be a central processor CPU or special integrated electricity Road ASIC（Application Specific Integrated Circuit）Or it is arranged to implement implementation of the present invention One or more integrated circuits of example.

Memory 73 is used to store file.Memory 73 may include high-speed RAM memory, it is also possible to including non-volatile Memory (non-volatile memory), for example, at least a magnetic disk storage.Memory 73 can also be memory array Row.Memory 73 is also possible to by piecemeal, and described piece can be combined into virtual volume by certain rule.

In a kind of possible embodiment, above procedure can be the program code for including computer-managed instruction.The journey Sequence is particularly used in the data distribution method performed in above-described embodiment, is specially：

In a kind of possible embodiment, the user equipment is according to the characteristic information of the data packet received and current Network load information, determine distributing strategy of the data packet under the current network load, including：

In a kind of possible embodiment, the characteristic information includes the protocol type in the five-tuple information, institute State application message including the data packet bag name and/or the data packet belonging to application name, the user equipment is according to connecing The characteristic information of the data packet received searches corresponding application message in application stream information storehouse, including：

In a kind of possible embodiment, the user equipment is born according to the application message and the current network The information of lotus, search strategy information bank determine distributing strategy of the data packet under the current network load, including：

In a kind of possible embodiment, which further includes：

In a kind of possible embodiment, currently running point applied under current network load is being determined After Flow Policy, before updating the corresponding flow table information of the currently running application, including：

In a kind of possible embodiment, which further includes：

The control unit of the present embodiment user equipment can be according to the characteristic information of data packet and current network load Information, determines distributing strategy of the data packet under current network load, and dividing cell can be according to the distributing strategy to data Bag carries out shunting processing, and user equipment can change distributing strategy with the variation of network load, it is possible to reduce with network side frequency Numerous information exchange.Also, user equipment can not only shunt data packet based on port, can also pass through policy information base The specific application belonged to application stream information storehouse identification data packet, realizes the shunting of application；In addition, pass through business point Class, network load classification, can effectively reduce interactive information, improve the utilization rate of channel；In addition, it can be received in the present embodiment The information of network load and the update of policy information ensure the accuracy of the information of network load so that user equipment can be accurate The true dynamic of the variation based on network load effectively changes distributing strategy, better ensures that the service quality of application, further Reduce the interaction of control information.

Embodiment eight

The structure of the network system of cellular system and the WLAN fusion of the present embodiment may refer to Fig. 4 a, such as scheme Shown in 4a, the network system of the cellular system and WLAN fusion includes：Network controller 41 and user equipment 40；

Wherein, the user equipment of any one structure in the embodiment of the present invention may be employed in the user's equipment.

Wherein, user equipment and network controller perform the specific descriptions of the data distribution method of the embodiment of the present invention can be with With reference to the associated description in above-described embodiment.

The present embodiment user equipment can determine number according to the characteristic information of data packet and the information of current network load According to distributing strategy of the bag under current network load, so that shunting processing is carried out to data packet according to the distributing strategy, therefore, User equipment can change distributing strategy with the variation of network load, it is possible to reduce be handed over the frequent information of network controller Mutually.User equipment can receive the information for the network load that network controller issues and the update of policy information, ensure that network is born The accuracy of the information of lotus so that user equipment being capable of the accurately variation dynamic based on network load, effectively change shunting Strategy better ensures that the service quality of application, is further reduced the interaction of control information.

Those of ordinary skill in the art may realize that each exemplary cells and algorithm in embodiment described herein Step can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions actually with hardware also It is software form to realize, specific application and design constraint depending on technical solution.Professional technician can be directed to It is specific to realize described function using different methods is selected, but this realization is it is not considered that beyond model of the invention It encloses.

If in the form of computer software come realize the function and be independent production marketing or in use, if To a certain extent it is believed that all or part of technical scheme（Such as to part that the prior art contributes）It is It embodies in form of a computer software product.The computer software product is generally stored inside computer-readable storage medium In, it is used including some instructions so that computer equipment（Can be personal computer, server or network equipment etc.）It performs The all or part of step of various embodiments of the present invention method.And foregoing storage medium includes USB flash disk, mobile hard disk, read-only storage Device（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or light The various media that can store program code such as disk.

The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.

Claims

1. a kind of data distribution method, which is characterized in that including：

User equipment determines the data packet according to the characteristic information of the data packet received and the information of current network load Distributing strategy under the current network load, the characteristic information of the data packet include five yuan in header field information At least one of group information, MAC address information, label information or its any combination；

Distributing strategy of the user equipment according to the data packet under the current network load, to the data packet into Row shunting is handled；

Wherein, the user equipment is determined according to the characteristic information of the data packet received and the information of current network load Distributing strategy of the data packet under the current network load, including：

The user equipment searches corresponding answer according to the characteristic information of the data packet received in application stream information storehouse Use information；

The user equipment is according to the application message and the information of the current network load, search strategy information bank, really Fixed distributing strategy of the data packet under the current network load.

2. data distribution method according to claim 1, which is characterized in that the characteristic information is believed including the five-tuple Protocol type in breath, the application name belonging to bag name and/or the data packet of the application message including the data packet, institute Characteristic information of the user equipment according to the data packet received is stated, corresponding application letter is searched in application stream information storehouse Breath, including：

The user equipment searches corresponding user's mark according to the protocol type of the data packet in the application stream information storehouse Know；

The user equipment according to the user identifier, search the data packet bag name and/or the data packet belonging to should With name.

3. data distribution method according to claim 1 or 2, which is characterized in that the user equipment is according to the application The information of information and the current network load, search strategy information bank determine the data packet in the current network Distributing strategy under load, including：

The user equipment searches corresponding business according to the application message in the business classification chart of the policy information base Type；

The user equipment is according to the type of service and the information of the current network load, in the policy information base Distributing strategy of the type of service under the current network load is searched in distributing strategy table.

4. data distribution method according to claim 1 or 2, which is characterized in that further include：

The user equipment updates network state information storehouse and/or according to current strategy according to the information of current network load Information updates the policy information base.

5. data distribution method according to claim 1 or 2, which is characterized in that further include：

Information and/or current policy information of the user equipment according to the current network load determine described current The distributing strategy applied under the current network load of operation；

The user equipment working as in the currently running distributing strategy applied under the current network load Forward sends out port information, updates the corresponding flow table information of the currently running application, and updates in the application stream information storehouse The current forwarding port information of the currently running application.

6. data distribution method according to claim 5, which is characterized in that determining described currently running apply in institute After stating the distributing strategy under current network load, before updating the corresponding flow table information of the currently running application, bag It includes：

If in the presence of need carry out seamless switching application, the user equipment obtain it is described need carry out seamless switching should After distributing strategy, seamless switching interaction is carried out with network controller.

7. data distribution method according to claim 1 or 2, which is characterized in that further include：

The user equipment searches the corresponding flow table of the data packet, if miss is corresponding after the data packet is received Flow table item then initiates registration request to network controller；

8. a kind of user equipment, which is characterized in that including：

Receiving unit, for received data packet；

Control unit, for according to the characteristic information of the data packet and the information of current network load received, determining Distributing strategy of the data packet under the current network load, the characteristic information of the data packet are believed including header field At least one of five-tuple information, mac address information, label information in breath or its any combination；

Dividing cell, for the distributing strategy according to the data packet under the current network load, to the data packet Carry out shunting processing；

Wherein, the user equipment further includes：

Described control unit is additionally operable to the characteristic information of the data packet received according to the receiving unit, in the application Corresponding application message is searched in stream information storehouse, according to the application message and the information of current network load, described in lookup Policy information base determines distributing strategy of the data packet under the current network load.

9. user equipment according to claim 8, which is characterized in that the characteristic information is included in the five-tuple information Protocol type, the application name belonging to the bag name and/or the data packet of the application message including the data packet, the control Unit processed is additionally operable to the protocol type according to the data packet, and corresponding user identifier is searched in the application stream information storehouse； According to the user identifier, search the data packet bag name and/or the data packet belonging to application name.

10. user equipment according to claim 8 or claim 9, which is characterized in that described control unit is additionally operable to be answered according to described With information, corresponding type of service is searched in the business classification chart of the policy information base；According to the type of service and institute The information of current network load is stated, the type of service is searched in the distributing strategy table of the policy information base and is worked as described Distributing strategy under preceding network load.

11. user equipment according to claim 8 or claim 9, which is characterized in that the user profile module is additionally operable to deposit Store up network state information storehouse；

Described control unit be additionally operable to according to the information of current network load update the network state information storehouse and/or according to Current policy information updates the policy information base.

12. user equipment according to claim 8 or claim 9, which is characterized in that described control unit is additionally operable to should described in inquiry With stream information storehouse, currently running application is obtained；

According to the information of the current network load and/or current policy information, described currently running apply is determined Distributing strategy under the current network load；

Current forwarding port letter in the currently running distributing strategy applied under the current network load Breath updates the corresponding flow table information of the currently running application, and updates and currently run described in the application stream information storehouse Application current forwarding port information.

13. user equipment according to claim 12, which is characterized in that described control unit is additionally operable to determining described work as After the distributing strategy applied under the current network load of preceding operation, the update currently running application is corresponding Before flow table information, if in the presence of the application for needing progress seamless switching, the application for needing to carry out seamless switching is being obtained Distributing strategy after, with network controller carry out seamless switching interaction.

14. user equipment according to claim 8 or claim 9, which is characterized in that described control unit is additionally operable to receiving After stating data packet, the corresponding flow table of the data packet is searched, if the corresponding flow table item of miss, is sent out to the network controller Play registration request；The early period that Wi-Fi accesses are carried out with the network controller interacts.

15. a kind of cellular system and the network system of WLAN fusion, which is characterized in that including：Network controller and use Family equipment；

The user equipment is using the user equipment as any one of claim 8-14；

The network controller, for issuing the information of current network load and/or current strategy to the user equipment Information.