CN104254107A

CN104254107A - Data distribution device, user equipment and network system

Info

Publication number: CN104254107A
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: 2014-12-31
Anticipated expiration: 2033-06-27
Also published as: WO2014206245A1; CN104254107B

Abstract

The invention discloses a data distribution device, user equipment and a network system. The data distribution method includes that the user equipment determines a distribution strategy of data packets under current network load according to feature information of the received data packets and current network load information, wherein the feature information of the data packets includes five-element-array information in header field information, MAC (medium access control) address information and at least one or any combination of tag information; the user equipment performs distribution processing on the data packets according to the distribution strategy of the data packets under the current network load. The user equipment can determine the distribution strategy of the data packets under the current network load according to the feature information of the data packets and the current network load information so as to distribute the data packets, the distribution strategy can be changed with the network load, frequent information interaction with the network side can be reduced, and few system resources are occupied.

Description

Data distribution method, subscriber equipment and network system

Technical field

The present invention relates to communication technical field, particularly relate to a kind of data distribution method, subscriber equipment and network system.

Background technology

Along with constantly popularizing of the intelligent terminal such as mobile phone, panel computer, and the high speed development of mobile Internet business, the trend that data service exponentially increases.Meanwhile, wireless communication technology also continuous evolution and development to tackle new business demand, comprise widely used GSM/GPRS(Global System for Mobile communications/General Packet Radio System, global mobile communication system/general grouping wireless system), UMTS(Universal Mobile Telecommunications System, universal mobile telecommunications system), stepping into the LTE(Long Term Evolution of commercial stage, Long Term Evolution), and WLAN(Wireless Local Area Network, WLAN (wireless local area network)) etc.Wherein, WLAN has the features such as networking is simple, cost is low, industrial chain is ripe, can as Cellular Networks supplement, effectively share partial cell business, become important networking and the dilatation way of mobile operator.

While the fusion of cellular system and wlan network can bring larger flexibility ratio to mobile operator, have also been introduced the complexity of multi-network cooperative management.On the one hand, the network controller that the Collaborative Control of multiple networks, managerial demand are more powerful and business support system; On the other hand, for intelligent terminal, not only need to support that multimode is multi-link, also need the support of software control aspect to realize coordination and the fusion of many nets.Multiple radio port is selected also to give terminal use very large performance space: use multi-linkly concurrently can improve access speed, specific transactions selects the connection of safety, select free network, select the network etc. that power consumption is lower.Therefore, provide user to carry out preference setting by certain mechanism, to raising Consumer's Experience by of great advantage.For solving cellular system and WLAN fusion problem better, 3GPP(3rd Generation partnership project, third generation partner program) also formulated a series of standard come the network element that specification is correlated with function and for realizing network element intercommunication and the port jointly controlled and interactive information, comprise ANDSF(Access Network Discovery and Selection Function, access network discovery and selection function), I-WLAN(Interworking-Wireless Local Area Network, interconnection WLAN (wireless local area network)), MAPIM(Multi Access PDN Connectivity and IP Flow Mobility, multiple access Packet Data Network connects and IP flow mobility) etc.

Wherein, MAPIM technology, can determine how business selects different carryings at network side, if but business number is very large, network load changes faster in situation, need controller and UE(User Equipment, subscriber equipment) carry out a large amount of completing strategy setting alternately, finally may reduce the overall performance of network.

The SDN(Software Defined Network being representative with open flows (OpenFlow), software defined network) technology, be more and more subject to the attention of academia and industrial quarters.The main feature of OpenFlow is data (forwarding) face and being separated of chain of command, the route test that the chain of command of logical centralization is optimized by the global network load collected, and by OpenFlow protocol integrated test system data surface forwarding unit, as the forwarding behavior of OpenFlow switch.OpenFlow agreement uses stream (flow) to desalinate the concept of network hierarchy, no matter bottom is that the medium of what type is as wired, radio open etc., or the agreement of what type is run regardless of bottom, as long as equipment supports OpenFlow agreement, just can carry out unified management and control, such OpenFlow can as the means of a kind of heterogeneous network converged management of mobile operator.But when the SDN scheme based on OpenFlow directly applies to existing cellular or UE, OpenFlow agreement frequently interactive information (both comprised heartbeat message, and also comprised the control information to each stream) itself is impacted larger to limited interface-free resources.

In sum, in the network that existing cellular system and WLAN merge, the procedural information carrying out data distribution is frequent alternately, and the system resource taken is large.

Summary of the invention

technical problem

The problem to be solved in the present invention is, the procedural information of data distribution is frequent alternately, and the system resource taken is large.A kind of information interaction is few, occupying system resources is few data distribution method, subscriber equipment and network system are provided.

technical scheme

In view of this, in order to solve the problem, in first aspect, the present invention proposes a kind of data distribution method, comprising:

Subscriber equipment is according to the information of the characteristic information of the packet received and current network load, determine the distributing strategy of described packet under described current network load, the characteristic information of described packet comprises at least one in five-tuple information in header field information, MAC address information, label information or its combination in any;

Described subscriber equipment, according to the distributing strategy of described packet under described current network load, carries out shunting process to described packet.

In conjunction with first aspect, in the execution mode that the first is possible, described subscriber equipment, according to the information of the characteristic information of the packet received and current network load, is determined the distributing strategy of described packet under described current network load, being comprised:

Described subscriber equipment, according to the characteristic information of the described packet received, searches corresponding application message in application stream information storehouse;

Described subscriber equipment is according to the information of described application message and described current network load, and search strategy information bank, determines the distributing strategy of described packet under described current network load.

In conjunction with the first possible execution mode of first aspect, in the execution mode that the second is possible, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described subscriber equipment is according to the characteristic information of the described packet received, in application stream information storehouse, search corresponding application message, comprising:

Described subscriber equipment, according to the protocol type of described packet, searches corresponding user ID in described application stream information storehouse;

Described subscriber equipment, according to described user ID, searches the bag name of described packet and/or the apply names belonging to described packet.

In conjunction with the first possible execution mode of first aspect or the possible execution mode of the second, in the execution mode that the third is possible, described subscriber equipment is according to the information of described application message and described current network load, search strategy information bank, determine the distributing strategy of described packet under described current network load, comprising:

Described subscriber equipment, according to described application message, searches corresponding type of service in the business categorizing table of described policy information base;

Described subscriber equipment, according to the information of described type of service and described current network load, searches the distributing strategy of described type of service under described current network load in the distributing strategy table of described policy information base.

In conjunction with the first possible execution mode of first aspect or the possible execution mode of the second, in the 4th kind of possible execution mode, described data distribution method also comprises:

Described subscriber equipment is according to the information updating network state information storehouse of current network load and/or upgrade described policy information base according to current policy information.

In conjunction with the first possible execution mode of first aspect or the possible execution mode of the second, in the 5th kind of possible execution mode, described data distribution method also comprises:

Described application stream information storehouse inquired about by described subscriber equipment, obtains the application of current operation;

Described subscriber equipment, according to the information of described current network load and/or current policy information, determines the distributing strategy be applied under described current network load of described current operation;

Described subscriber equipment is according to the current forwarding port information in the distributing strategy being applied under described current network load of described current operation, upgrade the stream table information of the application correspondence of described current operation, and upgrade the current forwarding port information of the application of current operation described in described application stream information storehouse.

In conjunction with the 5th kind of possible execution mode of first aspect, in the 6th kind of possible execution mode, after the distributing strategy being applied under current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, comprising:

Need if exist the application carrying out seamless switching, then described subscriber equipment acquisition is described need the distributing strategy of the application carrying out seamless switching after, to carry out seamless switching mutual with network controller.

In conjunction with the first possible execution mode of first aspect or the possible execution mode of the second, in the 7th kind of possible execution mode, described data distribution method also comprises:

Described subscriber equipment, after receiving described packet, searches the stream table that described packet is corresponding, if the stream list item of miss correspondence, then initiates registration request to network controller;

The early stage that described subscriber equipment and described network controller carry out Wi-Fi access is mutual.

In second aspect, the present invention proposes a kind of subscriber equipment, it is characterized in that, comprising:

Receiving element, for receiving packet;

Control unit, the characteristic information of described packet received for basis and the information of current network load, determine the distributing strategy of described packet under described current network load, the characteristic information of described packet comprises at least one in five-tuple information in header field information, mac address information, label information or its combination in any;

Dividing cell, for according to the distributing strategy of described packet under described current network load, carries out shunting process to described packet.

In conjunction with second aspect, in the execution mode that the first is possible, described subscriber equipment also comprises:

User profile module, for store policy information storehouse and application stream information storehouse;

The characteristic information of described packet of described control unit also for receiving according to described receiving element, searches corresponding application message in described application stream information storehouse; According to the information of described application message and current network load, search described policy information base, determine the distributing strategy of described packet under described current network load.

In conjunction with the first possible execution mode of second aspect, in the execution mode that the second is possible, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described control unit, also for the protocol type according to described packet, searches corresponding user ID in described application stream information storehouse; According to described user ID, search the bag name of described packet and/or the apply names belonging to described packet.

In conjunction with the first possible execution mode of second aspect or the possible execution mode of the second, in the execution mode that the third is possible,, described control unit also for according to described application message, searches corresponding type of service in the business categorizing table of described policy information base; According to the information of described type of service and described current network load, in the distributing strategy table of described policy information base, search the distributing strategy of described type of service under described current network load.

In conjunction with the first possible execution mode of second aspect or the possible execution mode of the second, in the 4th kind of possible execution mode, described user profile module is also for store network state information storehouse;

Described control unit is also for network state information storehouse according to the information updating of current network load and/or upgrade described policy information base according to current policy information.

In conjunction with the first possible execution mode of second aspect or the possible execution mode of the second, in the 5th kind of possible execution mode, described control unit also for inquiring about described application stream information storehouse, obtains the application of current operation;

According to information and/or the current policy information of described current network load, determine the distributing strategy be applied under described current network load of described current operation;

According to the current forwarding port information in the distributing strategy being applied under described current network load of described current operation, upgrade the stream table information of the application correspondence of described current operation, and upgrade the current forwarding port information of the application of current operation described in described application stream information storehouse.

In conjunction with the 5th kind of possible execution mode of second aspect, in the 6th kind of possible execution mode, described control unit is also for after the distributing strategy being applied under described current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, if exist and need the application carrying out seamless switching, then acquisition is described need the distributing strategy of the application carrying out seamless switching after, to carry out seamless switching mutual with network controller.

In conjunction with the first possible execution mode of second aspect or the possible execution mode of the second, in the 7th kind of possible execution mode, described control unit is also for after receiving described packet, search the stream table that described packet is corresponding, if the stream list item of miss correspondence, then initiate registration request to described network controller; The early stage of carrying out Wi-Fi access with described network controller is mutual.

In the third aspect, the present invention proposes the network system of a kind of cellular system and WLAN (wireless local area network) fusion, comprising: network controller and subscriber equipment;

Described subscriber equipment adopts the subscriber equipment of any one structure in the embodiment of the present invention;

Described network controller, for issuing the information of current network load and/or current policy information to described subscriber equipment.

beneficial effect

In the embodiment of the present invention, can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus shunting process is carried out to packet, distributing strategy can be changed along with the change of network load, can reduce the frequent information interaction with network side, the system resource taken is few.

Accompanying drawing explanation

Comprise in the description and form the Figure of description of a part for specification and specification together illustrates exemplary embodiment of the present invention, characteristic sum aspect, and for explaining principle of 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 is the flow chart of the data distribution method of the embodiment of the present invention two;

Fig. 2 b is the schematic diagram applying stream information storehouse 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 is the schematic diagram of the application scenarios of the data distribution method of the embodiment of the present invention four;

Fig. 4 b is the flow chart of UE registration in the data distribution method of the embodiment of the present invention four;

Fig. 4 c is the flow chart that in the data distribution method of the embodiment of the present invention four, UE forwards;

Fig. 4 d is the information of network load in the data distribution method of the embodiment of the present invention four and/or the flow chart of policy information renewal process;

Fig. 4 e is the flow chart of the renewal needing seamless switching in the data distribution method of the embodiment of the present invention four;

Fig. 5 is the structured flowchart of the subscriber equipment of the embodiment of the present invention five;

Fig. 6 is the structured flowchart of the subscriber equipment of the embodiment of the present invention six;

Fig. 7 shows the structured flowchart of the subscriber equipment of the embodiment of the present invention seven.

Embodiment

Various exemplary embodiment of the present invention, characteristic sum aspect is described in detail below with reference to accompanying drawing.The same or analogous element of Reference numeral presentation function identical in accompanying drawing.Although the various aspects of embodiment shown in the drawings, unless otherwise indicated, accompanying drawing need not be drawn in proportion.

Word " exemplary " special here means " as example, embodiment or illustrative ".Here need not be interpreted as being better than or being better than other embodiment as any embodiment illustrated by " exemplary ".

In addition, in order to better the present invention is described, in embodiment hereafter, give numerous details.It will be appreciated by those skilled in the art that do not have these details, the present invention can implement equally.In other example, known method, means, element and circuit are not described in detail, so that highlight 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, and as shown in Figure 1, this data distribution method can comprise the following steps:

Step 101, subscriber equipment are according to the information of the characteristic information of the packet received and current network load, determine the distributing strategy of described packet under current network load, the characteristic information of described packet comprises five-tuple information, MAC(Medium Access Control in header field information, and media interviews control) address information, at least one in label information (TAG) or its combination in any;

Particularly, in the network that cellular system and WLAN merge, the policy information base in subscriber equipment (UE) can be off-line prepackage, also can be that network controller is handed down to UE by control channel or packet, further, network controller can upgrade the policy information base in UE.Wherein, the characteristic information of packet can be obtained by the packet header of resolution data bag, such as: the five-tuple information in header packet information field, mac address information, the label information such as TAG or VLAN TAG of 2.5 layers can alone or in combination as the characteristic informations of this packet.The information of current network load can find in network state information storehouse, also can be that network controller issues, can be corresponding network load grade, network load value or other information for marked network load condition of different network load states.In addition, more statistical information can also be comprised based in the switch of stream in subscriber equipment, such as: the statistics of each port information of subscriber equipment, each queuing message, each stream table information etc., these statisticss also can as the foundation determining distributing strategy.

Step 102, subscriber equipment, according to the distributing strategy of described packet under current network load, carry out shunting process to described packet.

If find the distributing strategy under current network load in policy information base, such as: this packet is " 1 " at current network load, represent that WLAN can use, 2G/3G load is normal, and the Route Selection of network load when being " 1 " is WLAN, then the distributing strategy of this packet is from this packet of port repeat corresponding to WLAN.

In the present embodiment data distribution method, subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus shunting process is carried out to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side, the system resource taken is few.

Embodiment two

Fig. 2 a is the flow chart of the data distribution method of the embodiment of the present invention two, the step that Fig. 2 a is identical with Fig. 1 label has identical implication, as shown in Figure 2 a, be from the difference of above-described embodiment: in order to apply according to different APP(, Application) shunt, application stream information storehouse (APP-Flow Information Base) can be set.In this case, step 101 specifically can comprise:

Step 201, subscriber equipment, according to the characteristic information of the packet received, search corresponding application message in application stream information storehouse;

Particularly, described characteristic information can comprise the protocol type in the five-tuple information of packet, and described application message can comprise the bag name of described packet and/or the apply names belonging to described packet, and step 201 can comprise:

According to the protocol type of described packet, in application stream information storehouse, search corresponding user ID; Wherein, the protocol type of packet is in the five-tuple information parsed from the packet header of packet.Then, according to described user ID, search the bag name of described packet and/or the apply names belonging to described packet.

Wherein, application can store application message such as in stream information storehouse: the mapping relations of bag name and/or apply names and stream, Fig. 2 b is the schematic diagram applying stream information storehouse in the data distribution method of the embodiment of the present invention two, as shown in Figure 2 b, in one mode in the cards, stream can be five-tuple information, and the five-tuple information of packet comprises: object IP, destination interface, source IP, source port and protocol type.Connected applications name and current forwarding port information, application stream information storehouse in can inquire about application message corresponding to certain five-tuple information and current forwarding port information, to facilitate the controller of subscriber equipment such as: UE controller based on particularly should be used as shunting decision-making.

Step 202, subscriber equipment are according to the information of described application message and current network load, and search strategy information bank, determines the distributing strategy of described packet under current network load.

Particularly, step 202 can comprise: subscriber equipment, according to described application message, searches corresponding type of service in the business categorizing table of described policy information base; According to the information of described type of service and described current network load, in the distributing strategy table of described policy information base, search the distributing strategy of described type of service under current network load.

Wherein, the policy information for UE Controller decision-making in policy information base, can be stored, comprise and whether open intelligence shunting, the shunting configuration information of user to application-specific, the intelligent distributing strategy etc. of mobile operator.In the embodiment of the present invention, policy information base can be made up of two tables: APP(apply, Application) business categorizing table and distributing strategy table.The corresponding relation of type of service and application message etc. can be comprised in business categorizing table, type of service, the information of network load and the corresponding relation of distributing strategy in distributing strategy table, can be comprised.

Wherein, by business categorizing in business categorizing table, the list item number of distributing strategy table can be reduced.Particularly, in one mode in the cards, by the signature analysis to different business, a kind of sorting technique provided in the embodiment of the present invention, as shown in table 1.

Table 1 business categorizing table

Wherein, table 1 is only a kind of example, the method of business categorizing is not limited only to mode described in table 1, also other mode classification can be adopted, such as: be divided into low time delay class business, high-band width variety business, low packet loss class business, low jitter class business etc., as long as the service request of differentiation can be met after business categorizing, reduce interactive information and Policy Table's item number.

In addition, the information of current network load comprises network load grade corresponding to different network load states, network load value or other information for marked network load condition.Such as: network load can be divided into several grades, the distributing strategy under heterogeneous networks load level is set, also can reduce tactful item number and interactive information.In the embodiment of the present invention, the classification of network load can be determined in conjunction with cellular network load and wlan network load, as shown in table 2.

The classification of table 2 network load

Wherein, table 2 is only a kind of example, the stage division of network load is not limited to the method that table 2 provides, also the stage division of other network load can be adopted, such as: thinner different classification can be carried out by 2G/3G network load percentage, in addition, also can classification process further to the load of WLAN.Load level information in table 2 can be consistent with the load condition of the network stored in network state information storehouse (Network State Information base).

Distributing strategy concrete in distributing strategy table can be the combination of different types of service and network load grade, as shown in table 3.

Table 3 distributing strategy table

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

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

In the present embodiment data distribution method, subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus shunting process is carried out to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side, the system resource taken is few.Further, subscriber equipment not only can be shunted packet based on port, can the concrete application that belongs to of identification data bag by policy information base and application stream information storehouse, can realize the shunting of application; In addition, by business categorizing, network load classification, effectively can reduce interactive information, improve the utilance of channel.

Embodiment three

Fig. 3 is the flow chart of the data distribution method of the embodiment of the present invention three, Fig. 3 and Fig. 1, the step that Fig. 2 a label is identical have identical implication, as shown in Figure 3, be with the difference of above-described embodiment: this data distribution method can also comprise the process that the information of network load and/or policy information upgrade: subscriber equipment is according to the information updating network state information storehouse of current network load and/or upgrade described policy information base according to current policy information, specifically can comprise the following steps:

Step 301, subscriber equipment receive the information of the current network load that network controller issues and/or current policy information;

If the version of the information of the described current network load of step 302 is newer than the version of the information of the network load in network state information storehouse, then the information updating of the network load in described network state information storehouse is the information of described current network load by subscriber equipment;

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

After step 303, this data distribution method can also comprise the renewal process in application stream information storehouse, specifically can comprise the following steps:

Described application stream information storehouse inquired about by step 304, subscriber equipment, obtains the application of current operation;

Step 305, subscriber equipment, according to the information of described current network load and/or current policy information, determine the distributing strategy be applied under current network load of described current operation;

Step 306, subscriber equipment are according to the current forwarding port information in the distributing strategy being applied under described current network load of described current operation, upgrade the stream table information of the application correspondence of described current operation, and upgrade the current forwarding port information of the application of current operation described in described application stream information storehouse.

Further, this data distribution method can also comprise the process of seamless switching, after the distributing strategy being applied under current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, can comprise: if there is the application needing to carry out seamless switching, then acquisition is described need the distributing strategy of the application carrying out seamless switching after, to carry out seamless switching mutual with network controller.

Again further, before execution step 101, if there is new packets need to send, this data distribution method can also comprise the flow process of UE registration: after receiving described packet, search the stream table that described packet is corresponding, if the stream list item of miss correspondence, then initiate registration request to described network controller; Wi-Fi(wireless-fidelity is carried out, Wireless Fidelity with described network controller) early stage of accessing is mutual.

In the present embodiment data distribution method, subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus shunting process is carried out to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side, the system resource taken is few.Further, subscriber equipment not only can be shunted packet based on port, can the concrete application that belongs to of identification data bag by policy information base and application stream information storehouse, can realize the shunting of application; In addition, by business categorizing, network load classification, effectively can reduce interactive information, improve the utilance of channel.In addition, the information of network load and the renewal of policy information can be received in the present embodiment, ensure the accuracy of the information of network load, make subscriber equipment can accurately load Network Based change tread, effectively change distributing strategy, ensure the service quality applied better, reduce the mutual of control information further.

Embodiment four

Fig. 4 a is 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 the network that cellular system and WLAN merge, can comprise network controller 41 and subscriber equipment (UE) 40.

Wherein, network controller (Network Controller) 41 is functional modules for network side, it can be a stand-alone network elements, also existing BSC(Base Station Controller can be built in, base station controller), RNC(Radio Network Controller, radio network controller) or AC(Access Controller, access controller) etc. in controller, also can be the controller (OpenFlow Controller, OFC) supporting OpenFlow.Its major function is state information when issuing network implementation to user, also can distributing policy information such as: routing policy.Above-mentioned mutual information is by realizing with the information interaction of UE side correlation module, and the mode of information interaction is not limit, and can be packet, signaling or broadcast.

UE can comprise based on SDN control and forward surface function, add the expansion of User Defined strategy, the expansion of application identification and the Function Extension to the information interaction of network load, state and shunting decision-making.Such as: expansion can be carried out to the software of UE and make it support OpenFlow, such as: in the UE of Android operation system (Android OS), increase the switch (Flow-based Switch) 42 based on stream, can be that a kind of software switch realizes program; And on UE, increase UE controller (UE Controller) 43 with the forwarding in control data face, simultaneously at the control port (Control Interface) 44 of the chain of command of UE increase end to end interactive function, thus the control of UE shunting can be realized when not changing network infrastructure.

Particularly, based on software (virtual) the switch realization that the switch (Flow-based Switch) 42 of stream can be based on OpenFlow in UE, as the data surface forwarding module of SDN scheme, be mainly used in the forwarding of control data bag, change the header packet information etc. of packet.Basic characteristics based on the switch of stream are, carried out the forwarding of control data bag by one or more stream table, and the amendment of stream table and control can by this locality or the controller of far-end change rule in stream table such as by protocol interaction: current forwarding port in action message.In one embodiment of the present of invention, a kind of virtual switch (Open vSwitch) of increasing income can be used as the selection of SoftSwitch.In other embodiments of the invention, the switch based on stream is not limited to Open vSwitch, and other the software switch based on stream (flow) realizes also can as the candidate of scheme.

UE controller in UE can by protocol interaction to revise based on the stream list item in the switch of stream, the forwarding of final control data bag.The forwarding decision of UE controller wants the content in state information storehouse Network Based and policy information base to carry out.For application or the shunting of process-level, the information in connected applications stream information storehouse (APP-Flow Information base) is also needed to carry out decision-making.

In addition, user profile (Profile) 45 in UE, can also being comprised, for carrying out, preference setting being carried out to user behavior, specifically can preserve the contents such as application stream information storehouse, network state information storehouse and policy information base.On the one hand, the function of being selected whether to open Intelligent hot point discovery, intelligence shunting by user is needed.On the other hand, user can arrange the distributing strategy of some application-specific by Profile, select different ports, such as, the port IF_1 shown in Fig. 4 a is 3G/4G port, and IF_2 is Wi-Fi port, IF_3 is BT port, as video traffic can select Wi-Fi port.The configuration information of user can be stored in policy information base (Policy Information Base).Wherein, the configuration information of user can comprise the demands such as two-forty, low charging, low time delay, can also be other information, specifically can arrange according to application scenarios.

Control port (Control Interface) module is as the mutual port of UE and network controller, can complete that intelligence shunting relevant registration in UE side is mutual, the reporting of UE Partial State Information, and the function such as the information of network load, the reception of network policy information.

Following basic procedure can be comprised in the process of data distribution method performing the present embodiment:

Flow process one, definition strategy information

Each operator can formulate relevant distributing strategy table based on the business characteristic of oneself with marketing strategy.In a kind of embodiment of the present invention, business categorizing is undertaken by table 1, and network load classification is undertaken by table 2, and distributing strategy arranges and undertaken by table 3.Wherein, the policy information base in UE can be off-line prepackage, also can be that network controller is handed down to UE by control channel or packet, and network controller can upgrade the policy information base in UE.

Flow process two, UE register flow path

Fig. 4 b is the flow chart of UE registration in the data distribution method of the embodiment of the present invention four, as shown in Figure 4 b, specifically can comprise the following steps:

Step 401, when UE needs to forward new packet, if acquiescence does not flow table, can be processed by UE controller (UE Controller);

Step 402, UE controller be by control port (Control Interface) to network controller (Network Controller) such as: BTS(Base Transceiver Station, base transceiver station), BSC, NodeB, eNodeB, RNC etc. send registration request;

Step 403, network controller judge whether the community that UE belongs to can use Wi-Fi to shunt, and to carry out early stage of Wi-Fi access mutual with UE.In the process, network controller can to the information of UE distributing policy information and network load, and UE then can according to the content in its policy information base preserved of information updating of the policy information received and network load and network state information storehouse.

Step 404, when UE accesses Wi-Fi and 3G simultaneously, complete registration process.The discovery procedure of ANDSF focus and relevant interaction content can also be comprised in the process of UE registration.

Flow process three, UE forwarding process

Fig. 4 c is the flow chart that in the data distribution method of the embodiment of the present invention four, UE forwards, and as illustrated in fig. 4 c, specifically can comprise the following steps:

First the application of step 501, UE side is initiated network and is connected; The packet default route of application is on a virtual port.In one embodiment of the present of invention, the mode of default route is manually set, a virtual port is specified to be the default route applied, intercept and capture by the switch based on stream all data arriving this virtual port, and from the network port of reality, data retransmission is gone out by the form of amendment source, target MAC (Media Access Control) address.

Step 502, to intercept and capture based on the switch of stream and arrive the packet of this virtual port, inquiry stream table.If miss details such as: the five-tuple information etc. in packet, goes to step 503; If hit, then go to step 507.

Step 503, based on stream switch packet is reported UE controller.

Step 504, UE controller inquiry application stream information storehouse, if miss, goes to step 505; If hit, then go to step 506.

Step 505, according to the five-tuple information searching in packet to corresponding bag name or apply names.In one embodiment of the present of invention, 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 Protoco (UDP)), in Linux, corresponding network connection state can be obtained by inquiry/proc/net/tcp or/proc/net/udp, obtain the uid(user identity that five-tuple information is corresponding, user ID).Again from mounted APK(Android Package, Android installation kit) in list based on bag name corresponding to uid inquiry or apply names.Then the bag name corresponding to five-tuple information or apply names more new opplication stream information storehouse.

Step 506, requester 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: first can find the type of service that application is corresponding from the business categorizing table of policy information base, if miss type of service, then the type of service of this application may not be included in the default application that can shunt, under can using current network load, the distributing strategy of the acquiescence preset carries out shunting/forwarding; If hit a certain type of service, the distributing strategy that this type of service under current network load is corresponding then can be inquired about from the distributing strategy table of policy information base, if miss distributing strategy, the distributing strategy given tacit consent under using this network load, otherwise shunt by the distributing strategy of hit.

Particularly, in actual repeating process, for Deterministic service device end return data can normally receive, can according to the current forwarding port information of this application correspondence in distributing strategy, modified in packet header of packet of this application being routed to virtual port, such as: the MAC Address source MAC of header packet information being revised as the physical port of actual this packet of forwarding, object MAC is revised as the MAC Address of respective gateway, i.e. the MAC Address of 2G/3G gateway or the MAC Address of WLAN AP; Source IP is revised as the IP address of actual forwarding physical port, object IP address is constant.

Current forwarding port information in step 508, more new opplication stream information storehouse, UE repeating process terminates.

Step 509, to forward according to the rule in stream table, need point out, still need to perform and the amendment in similar packet header in step 507, UE repeating process terminates.

Flow process four, strategy, load more new technological process

Fig. 4 d is the information of network load in the data distribution method of the embodiment of the present invention four and/or the flow chart of policy information renewal process, and as shown in figure 4d, the renewal process of the information of this strategy, network load is similar, specifically can comprise the following steps:

The control port (Control Interface) of step 601, UE side receives information and/or the policy information of the network load that network controller issues.

The control port of step 602, UE side judges that whether the version of the information of the network load received is newer than the content in network state information storehouse, if so, then upgrades the content in network state information storehouse.Control port can also judge that whether the version of the policy information received is newer than the content in policy information base; If so, then the content in update strategy information bank, and trigger UE controller and carry out follow-up strategy execution.

Step 603, UE controller inquiry application stream information storehouse (APP-Flow Information Base), can obtain the information of the application of current operation.

Step 604, UE controller requester network state information storehouse can obtain the information of current network load, and query strategy information bank can obtain current policy information.

Step 605, UE controller are based on the information of up-to-date network load and/or policy information, and joint decision, can obtain the distributing strategy of each application.

Step 606, forward port such as needing to change: switch or the application of shunting, UE controller upgrades stream table information, makes the former stream table invalidates information of its correspondence, and is updated to new stream table information.

After step 607, renewal stream telogenesis merit, the more port information in new opplication stream information storehouse, the port information that this application changes is updated to current forwarding port information by UE controller.

After load, policy information are upgraded, without the need to carrying out the application switched, retain original stream table information and current forwarding port information.

For application-specific, if need the continuity keeping network to switch or apply after shunting, need the relevant reciprocal process increasing seamless switching.Specifically, do not change after needing retaining part address information before the handover, Fig. 4 e is the flow chart of the renewal needing seamless switching in the data distribution method of the embodiment of the present invention four, as shown in fig 4e, compared with Fig. 4 d, the main distinction is, after step 602, can also comprise:

Step 701, control port judge whether to need to carry out seamless switching, and namely the need of the continuity keeping network to switch or to apply after shunting, when needs seamless switching, control port notice UE controller upgrades stream table information.

Then, after execution step 603, UE controller can inquire about the current forwarding port information that application stream information storehouse obtains current online application message and each application correspondence.Before execution step 604, can comprise:

Step 702, UE controller and policy information base judge whether to need to carry out seamless switching alternately.

And then perform step 604 and obtain necessary information needed for joint decision: query strategy information bank obtains the information needing the application carrying out seamless switching, and such as: apply names, requester network state information storehouse obtains the information of current network load; After the distributing strategy of each application determined by execution step 605UE controller, also comprise:

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

And then perform the stream table information that step 606 upgrades each application correspondence switched.Perform the port information of step 607 more each application in new opplication stream information storehouse.

Require that the network load renewal process under seamless switching situation and policy information renewal process are similar, after difference is information on load renewal, the information bank of renewal is network state information storehouse, and other processes are similar, do not do repeat specification at this.

In the present embodiment data distribution method, UE can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus shunting process is carried out to packet, distributing strategy can be changed along with the change of network load, can reduce the frequent information interaction with network side, the system resource taken is few.Further, UE not only can shunt packet based on port, and the concrete application that can also be belonged to by policy information base and application stream information storehouse identification data bag, realizes the shunting of application; In addition, by business categorizing, network load classification, effectively can reduce interactive information, improve the utilance of channel; Further, by user profile (profile), user can be made distributing strategy to be set according to the preference of oneself, to increase the independence of user.Therefore, the present embodiment is a kind of UE SDN scheme of lightweight, can avoid using netfilter/iptables and increasing overhead, the renewal of network load and strategy is received by increasing control port on the basis of UE SDN scheme, can sensing network load change tread, effectively change distributing strategy, ensure the service quality applied better, frequent, a large amount of control information avoided in pure OpenFlow network is mutual.For there is a large amount of fire compartment wall or NAT(Network Address Translation that operator controls, network address translation) network of equipment, also can reduce control information mutual, effectively realize shunting.

Embodiment five

Fig. 5 is the structured flowchart of the subscriber equipment of the embodiment of the present invention five, and as shown in Figure 5, this subscriber equipment comprises:

Receiving element 51, for receiving packet; The associated description of data distribution method specifically can be performed see the control port of UE in above-described embodiment.

Control unit 53, the characteristic information of packet received for basis and the information of current network load, determine the distributing strategy of described packet under current network load, the characteristic information of described packet comprises at least one in five-tuple information in header field information, mac address information, label information or its combination in any; The associated description of data distribution method specifically can be performed see the UE controller of UE in above-described embodiment.

Dividing cell 55, for according to the distributing strategy of described packet under current network load, carries out shunting process to described packet.The associated description of data distribution method specifically can be performed see the switch based on stream of UE in above-described embodiment.

The control unit of the present embodiment subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, dividing cell can carry out shunting process according to this distributing strategy to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side.

Embodiment six

Fig. 6 is the structured flowchart of the subscriber equipment of the embodiment of the present invention six, and the assembly that Fig. 6 and Fig. 5 label is identical has identical implication, and as shown in Figure 6, be with the difference of above-described embodiment, this subscriber equipment can also comprise:

User profile module 61, for store policy information storehouse and application stream information storehouse;

The characteristic information of packet of described control unit 53 also for receiving according to described receiving element 51, searches corresponding application message in described application stream information storehouse; According to the information of described application message and current network load, search described policy information base, determine the distributing strategy of described packet under current network load.

In a kind of possible execution mode, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described control unit 53, also for the protocol type according to described packet, searches corresponding user ID in described application stream information storehouse; According to described user ID, search the bag name of described packet and/or the apply names belonging to described packet.

In a kind of possible execution mode, described control unit 53 also for according to described application message, searches corresponding type of service in the business categorizing table of described policy information base; According to the information of described type of service and described current network load, in the distributing strategy table of described policy information base, search the distributing strategy of described type of service under current network load.

In a kind of possible execution mode, described user profile module 61 is also for store network state information storehouse;

Described control unit 53 is also for network state information storehouse according to the information updating of current network load and/or upgrade described policy information base according to current policy information.

In a kind of possible execution mode, described control unit 53 is also for receiving the information of the current network load that network controller issues and/or current policy information; If the version of the information of described current network load is newer than the version of the information of the network load in network state information storehouse, be then the information of described current network load by the information updating of the network load in described network state information storehouse; If the version of described current policy information is newer than the version of the policy information in described policy information base, then the policy information in described policy information base is updated to described current policy information.

In a kind of possible execution mode, described control unit 53 also for inquiring about described application stream information storehouse, obtains the application of current operation;

According to information and/or the current policy information of described current network load, determine the distributing strategy be applied under current network load of described current operation;

In a kind of possible execution mode, described control unit 53 is also for after the distributing strategy being applied under current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, if exist and need the application carrying out seamless switching, then acquisition is described need the distributing strategy of the application carrying out seamless switching after, to carry out seamless switching mutual with network controller.

In a kind of possible execution mode, described control unit 53, also for after receiving described packet, searches the stream table that described packet is corresponding, if the stream list item of miss correspondence, then initiates registration request to described network controller; The early stage of carrying out Wi-Fi access with described network controller is mutual.

The control unit of the present embodiment subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, dividing cell can carry out shunting process according to this distributing strategy to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side.Further, subscriber equipment not only can be shunted packet based on port, and the concrete application that can also be belonged to by policy information base and application stream information storehouse identification data bag, realizes the shunting of application; In addition, by business categorizing, network load classification, effectively can reduce interactive information, improve the utilance of channel; In addition, the information of network load and the renewal of policy information can be received in the present embodiment, ensure the accuracy of the information of network load, make subscriber equipment can accurately load Network Based change tread, effectively change distributing strategy, ensure the service quality applied better, reduce the mutual of control information further.User profile (profile), can also make user can arrange distributing strategy according to the preference of oneself, increase the independence of user.

Embodiment seven

Fig. 7 shows the structured flowchart of the subscriber equipment of the embodiment of the present invention seven.Described subscriber equipment can be possess the host server of computing capability, personal computer PC or portable portable computer or terminal etc.The specific embodiment of the invention does not limit the specific implementation of computing node.

Described subscriber equipment comprises processor (processor) 71, communication interface (Communications Interface) 72, memory (memory array) 73 and bus 74.Wherein, processor 71, communication interface 72 and memory 73 complete mutual communication by bus 74.

Communication interface 72 for net element communication, wherein network element comprise such as Virtual Machine Manager center, share store etc.

Processor 71 is for executive program.Processor 71 may be a central processor CPU, or application-specific integrated circuit ASIC (Application Specific Integrated Circuit), or is configured to the one or more integrated circuits implementing the embodiment of the present invention.

Memory 73 is for storing documents.Memory 73 may comprise high-speed RAM memory, also may comprise nonvolatile memory (non-volatile memory), such as at least one magnetic disc store.Memory 73 also can be memory array.Memory 73 also may by piecemeal, and described piece can become virtual volume by certain principle combinations.

In a kind of possible execution mode, said procedure can be the program code comprising computer-managed instruction.This program specifically can be used for performing the data distribution method in above-described embodiment, is specially:

In a kind of possible execution mode, described subscriber equipment, according to the information of the characteristic information of the packet received and current network load, is determined the distributing strategy of described packet under described current network load, being comprised:

In a kind of possible execution mode, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described subscriber equipment is according to the characteristic information of the described packet received, in application stream information storehouse, search corresponding application message, comprising:

In a kind of possible execution mode, described subscriber equipment according to the information of described application message and described current network load, search strategy information bank, determine the distributing strategy of described packet under described current network load, comprising:

In a kind of possible execution mode, this data distribution method also comprises:

In a kind of possible execution mode, after the distributing strategy being applied under current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, comprising:

The control unit of the present embodiment subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, dividing cell can carry out shunting process according to this distributing strategy to packet, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network side.Further, subscriber equipment not only can be shunted packet based on port, and the concrete application that can also be belonged to by policy information base and application stream information storehouse identification data bag, realizes the shunting of application; In addition, by business categorizing, network load classification, effectively can reduce interactive information, improve the utilance of channel; In addition, the information of network load and the renewal of policy information can be received in the present embodiment, ensure the accuracy of the information of network load, make subscriber equipment can accurately load Network Based change tread, effectively change distributing strategy, ensure the service quality applied better, reduce the mutual of control information further.

Embodiment eight

The structure of the network system that the cellular system of the present embodiment and WLAN (wireless local area network) merge can see Fig. 4 a, and as shown in fig. 4 a, the network system that this cellular system and WLAN (wireless local area network) merge comprises: network controller 41 and subscriber equipment 40;

Wherein, this subscriber equipment can adopt the subscriber equipment of any one structure in the embodiment of the present invention.

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

The present embodiment subscriber equipment can according to the information of the characteristic information of packet and current network load, determine the distributing strategy of packet under current network load, thus according to this distributing strategy, shunting process is carried out to packet, therefore, subscriber equipment can change distributing strategy along with the change of network load, can reduce the frequent information interaction with network controller.Subscriber equipment can receive the information of the network load that network controller issues and the renewal of policy information, ensure the accuracy of the information of network load, make subscriber equipment can accurately load Network Based change tread, effectively change distributing strategy, ensure the service quality applied better, reduce the mutual of control information further.

Those of ordinary skill in the art can recognize, each exemplary cell in embodiment described herein and algorithm steps, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions realize with hardware or software form actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function for specific application choice diverse ways, but this realization should not thought and exceeds scope of the present invention.

If using the form of computer software realize described function and as independently production marketing or use time, then can think that all or part of (such as to the part that prior art contributes) of technical scheme of the present invention embodies in form of a computer software product to a certain extent.This computer software product is stored in the storage medium of embodied on computer readable usually, comprises all or part of step of some instructions in order to make computer equipment (can be personal computer, server or the network equipment etc.) perform various embodiments of the present invention method.And aforesaid storage medium comprise USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims

1. a data distribution method, is characterized in that, comprising:

2. data distribution method according to claim 1, it is characterized in that, described subscriber equipment, according to the information of the characteristic information of the packet received and current network load, is determined the distributing strategy of described packet under described current network load, being comprised:

3. data distribution method according to claim 2, it is characterized in that, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described subscriber equipment is according to the characteristic information of the described packet received, in application stream information storehouse, search corresponding application message, comprising:

4. the data distribution method according to Claims 2 or 3, it is characterized in that, described subscriber equipment according to the information of described application message and described current network load, search strategy information bank, determine the distributing strategy of described packet under described current network load, comprising:

5. the data distribution method according to Claims 2 or 3, is characterized in that, also comprises:

6. the data distribution method according to Claims 2 or 3, is characterized in that, also comprises:

7. data distribution method according to claim 6, is characterized in that, after the distributing strategy being applied under described current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, comprising:

8. the data distribution method according to Claims 2 or 3, is characterized in that, also comprises:

9. a subscriber equipment, is characterized in that, comprising:

Receiving element, for receiving packet;

10. subscriber equipment according to claim 9, is characterized in that, also comprises:

11. subscriber equipmenies according to claim 10, it is characterized in that, described characteristic information comprises the protocol type in described five-tuple information, described application message comprises the bag name of described packet and/or the apply names belonging to described packet, described control unit, also for the protocol type according to described packet, searches corresponding user ID in described application stream information storehouse; According to described user ID, search the bag name of described packet and/or the apply names belonging to described packet.

12. subscriber equipmenies according to claim 10 or 11, is characterized in that, described control unit also for according to described application message, searches corresponding type of service in the business categorizing table of described policy information base; According to the information of described type of service and described current network load, in the distributing strategy table of described policy information base, search the distributing strategy of described type of service under described current network load.

13. subscriber equipmenies according to claim 10 or 11, it is characterized in that, described user profile module is also for store network state information storehouse;

14. subscriber equipmenies according to claim 10 or 11, it is characterized in that, described control unit also for inquiring about described application stream information storehouse, obtains the application of current operation;

15. subscriber equipmenies according to claim 14, it is characterized in that, described control unit is also for after the distributing strategy being applied under described current network load determining described current operation, before upgrading the stream table information of the application correspondence of described current operation, if exist and need the application carrying out seamless switching, then acquisition is described need the distributing strategy of the application carrying out seamless switching after, to carry out seamless switching mutual with network controller.

16. subscriber equipmenies according to claim 10 or 11, it is characterized in that, described control unit, also for after receiving described packet, searches the stream table that described packet is corresponding, if the stream list item of miss correspondence, then initiate registration request to described network controller; The early stage of carrying out Wi-Fi access with described network controller is mutual.

The network system that 17. 1 kinds of cellular systems and WLAN (wireless local area network) merge, is characterized in that, comprising: network controller and subscriber equipment;

Described subscriber equipment adopts the subscriber equipment according to any one of claim 9-16;