CN105812330B - Beehive network system, control method, device and network element and Centralized Controller - Google Patents
Beehive network system, control method, device and network element and Centralized Controller Download PDFInfo
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Abstract
The present invention discloses a kind of beehive network system, control method, device and network element and Centralized Controller.This method comprises: network element receives the OpenFlow message that Centralized Controller is sent, OpenFlow message includes OpenFlow control instruction；Parsing OpenFlow message obtains OpenFlow control instruction；OpenFlow control command is executed according to preset rules.Beehive network system, control method, device and the network element and Centralized Controller that the disclosure provides, control instruction is sent by OpenFlow message, wireless network control and data forwarding capability is set all to be used uniformly OpenFlow agreement, without using two sets of agreements, to simplify the interface protocol of control plane and data surface.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of beehive network system, control method, device and network element and concentrations
Controller.
Background technique
For the following 5G (5-Generation, the 5th generation) network, people are in rate, capacity, time delay and various network systems
Fusion of formula etc. proposes the demand of more " harsh ".In order to realize these demands, each enterprise and normal structure are in emphasis
Study the key technologies such as high band transmission, extensive antenna, full duplex, new network framework and super-intensive networking.Due to future
Network formats are complicated, will simultaneously include the network technologies such as 2G to 5G network, WIFI (Wireless-Fidelity, Wireless Fidelity),
In order to realize resource and the flexible dispatching of interference between multi-internet integration and each standard and coordinate just to need to carry out existing network framework
Innovation.
The research tendency of the prior art is by SDN (Software Defined Network, software defined network) technology
Theory be applied to future network in.The core concept of SDN will control and carrying separation, then will control centralization, to realize
The flexible control and scheduling of resource.
Currently, SDN technology obtains success, such as B4 commercial network of the Google based on SDN in cable network.
However, SDN is applied to wireless network, using OpenFlow (OF) protocol forward data, using other Protocol Through Networks into
Row control, such as OpenRoads is using SNMP (Simple Network Management Protocol, simple network
Management agreement) agreement, Odin is using Odin agreement, and CloudMAC will then control information and parameter is encapsulated in radio-tap.This
So that the interface between wireless network control and carrying at least needs two sets of consensus standards, i.e., a set of OpenFlow agreement and a set of control
Agreement processed, and the control protocol of each family is different from, and is respectively established one's own system and is difficult to unification, and this is all unfavorable for 5G network architecture leather
New development.
Therefore, it is necessary to a kind of cellular network control method be proposed, so that wireless network control and data forwarding capability are all
It is used uniformly OpenFlow agreement, without using two sets of agreements, to simplify the interface protocol of control plane and data surface.
Summary of the invention
The disclosure technical problem to be solved is to adopt wireless network control and data forwarding capability all uniformly
With OpenFlow agreement, the interface protocol of control plane and data surface is simplified.
The disclosure provides a kind of cellular network control method, comprising: the OpenFlow message that Centralized Controller is sent is received,
OpenFlow message includes OpenFlow control instruction；Parsing OpenFlow message obtains OpenFlow control instruction；According to pre-
If rule executes OpenFlow control command.
Optionally, OpenFlow message is that OpenFlow controls flow table；And/or OpenFlow message is that OpenFlow is symmetrical
The Experimenter message reserved in message.
Further, OpenFlow control instruction include resource joint scheduling, interference coordination, mobile management, charging,
QoS service quality updates；And/or OpenFlow control is encapsulated by the Experimenter message that OpenFlow symmetric message is reserved
System instruction；And/or referred to by establishing OpenFlow flow table, extension OpenFlow flow table matching field, extension OpenFlow flow table
Enabling collection and action collection obtain includes the OpenFlow control flow table of OpenFlow control instruction.
Optionally, OpenFlow interchanger receives the meter encapsulated by OpenFlow symmetric message that Centralized Controller is sent
Take rule；OpenFlow interchanger parsing OpenFlow symmetric message obtains charging regulation；According to charging regulation, OpenFlow is handed over
It changes planes collecting charging information；Charge information is encapsulated in OpenFlow symmetric message by OpenFlow interchanger is sent to concentration control
Device processed.
Optionally, each base station OpenFlow is encapsulated by OpenFlow symmetric message current resource situation is simultaneously sent to
Centralized Controller；Centralized Controller parsing OpenFlow symmetric message obtains the current resource situation in each base station OpenFlow；Collection
Middle controller dispatches user according to the current resource situation of each base station OpenFlow.
Further, current resource situation includes running time-frequency resource, power, user situation and base station busy situation；And/or
Centralized Controller dispatches user according to the current resource situation of each base station OpenFlow, comprising: by the busy base station OpenFlow
Certain customers are dispatched to the not busy base station OpenFlow.
Optionally, the OpenFlow message from Centralized Controller is received, OpenFlow message includes forwarding number evidence；Parsing
OpenFlow message obtains forwarding data；And/or the OpenFlow message from other network elements is received, OpenFlow message includes
Forward data；Parsing OpenFlow message obtains forwarding data.
Optionally, extension OpenFlow flow table matching field includes: addition control function information to matching field, controls function
Energy information includes user information, user gradation, QoS service quality, radio link parameter information；And/or extension OpenFlow flow
Table instruction set and action collection include: if desired to carry out statistics charging to customer flow, then increase charging rule in extension matching field
Then field increases charging instruction in instruction set, concentrates in action and increases the billing operation for being directed to different user；If and/or needing
Radio resource and link information are reported, then reports radio resource and link information rule field in extension matching field increase,
Increase in instruction set and radio resource and link information is reported to instruct, concentrates increase to report radio resource and link information in action
Rule；And/or if desired realize that QoS updates, then increase Qos instruction in instruction set, concentrates and increase for difference in action
Qos operation.
Optionally, OpenFlow interchanger receives Centralized Controller and is advised by the charging that OpenFlow controls flow table encapsulation
Then；Parsing OpenFlow control flow table obtains matching field, instruction set and action collection, and matching field includes charge information, instruction
Collection and action collection include billing operation；OpenFlow interchanger matches charging regulation according to matching field, executes instruction concentration
The billing operation that charging instruction and action are concentrated.
Optionally, OpenFlow interchanger receives Centralized Controller and is serviced by the Qos that OpenFlow controls flow table encapsulation
Quality rule updates；Parsing OpenFlow control flow table obtains matching field, instruction set and action collection, and matching field includes Qos
More new information, instruction set and action collection include that Qos updates operation；Qos more new information is matched according to matching field, executes instruction collection
In Qos instruction and action concentrate Qos update operation；And/or OpenFlow interchanger receives Centralized Controller and passes through
The Qos Policy Updates of OpenFlow symmetric message encapsulation；Parsing OpenFlow symmetric message obtains Qos Policy Updates；According to pre-
If rule executes Qos Policy Updates.
The present invention also provides a kind of cellular network control devices, comprising:
Receiving module, for receiving the OpenFlow message of Centralized Controller transmission, OpenFlow message includes
OpenFlow control instruction；Parsing module obtains OpenFlow control instruction for parsing OpenFlow message；Execution module,
For executing OpenFlow control command according to preset rules.
Optionally, OpenFlow message is that OpenFlow controls flow table；And/or
OpenFlow message is the Experimenter message reserved in OpenFlow symmetric message.
Further, OpenFlow is encapsulated by reserving reserved Experimenter message in OpenFlow symmetric message
Control instruction；And/or package module is also used to by establishing OpenFlow flow table, extension OpenFlow flow table matching field, expanding
Exhibition OpenFlow flow table instruction set and action collection obtain include OpenFlow control instruction OpenFlow control flow table；And/or
OpenFlow control instruction includes resource joint scheduling, interference coordination, mobile management, charging, the update of QoS service quality.
Optionally, receiving module is used to receive the charging of Centralized Controller transmission encapsulated by OpenFlow symmetric message
Rule；Parsing module obtains charging regulation for parsing OpenFlow symmetric message；Execution module is used to be received according to charging regulation
Collect charge information；Device further includes sending module, is sent to collection for charge information to be encapsulated in OpenFlow symmetric message
Middle controller.
Optionally, package module is used for the current resource situation that encapsulates by OpenFlow symmetric message and is sent to collection
Middle controller, Centralized Controller parsing OpenFlow symmetric message obtains the current resource situation in each base station OpenFlow, and leads to
The instruction for crossing OpenFlow symmetric message encapsulation scheduling user is sent to each base station OpenFlow；Execution module is for executing collection
Middle controller dispatches the instruction of user according to current resource situation.
Optionally, current resource situation includes running time-frequency resource, power, user situation and base station busy situation；And/or it holds
Row module is used to dispatch user according to the current resource situation of each base station OpenFlow, comprising: by the busy base station OpenFlow
Certain customers are dispatched to the not busy base station OpenFlow.
Optionally, receiving module is for receiving the OpenFlow message from Centralized Controller, OpenFlow symmetric message
Encapsulation forwarding data packet；Parsing module obtains forwarding data for parsing OpenFlow symmetric message；And/or receiving module is used for
The OpenFlow symmetric message from other network elements is received, OpenFlow includes forwarding data；Parsing module is for parsing
OpenFlow message obtains forwarding data.
Optionally, extension matching field includes: addition control function information to matching field, and control function information includes using
Family information, user gradation, QoS service quality, radio link parameter information；And/or extension matching field, expansion instruction set and row
Dynamic collection includes: if desired to carry out statistics charging to customer flow, then increases charging regulation field in extension matching field, instructing
It concentrates and increases charging instruction, concentrated in action and increase the billing operation for being directed to different user；And/or if desired report radio resource
And link information, then radio resource and link information rule field are reported in extension matching field increase, increased in instruction set
It reports radio resource and link information to instruct, is concentrated in action and increase the rule for reporting radio resource and link information；If and/or
It needs to realize that QoS updates, then increases Qos instruction in instruction set, concentrated in action and increase the operation for being directed to different Qos.
Optionally, receiving module is used to receive the charging regulation that Centralized Controller controls flow table encapsulation by OpenFlow；
Parsing module obtains matching field, instruction set and action collection for parsing OpenFlow control flow table, and matching field includes charging
Information, instruction set and action collection include billing operation；Execution module is used to match charging regulation according to matching field, executes instruction
The billing operation that the charging of concentration instructs and action is concentrated.
Optionally, receiving module is used to receive the Qos Service Quality that Centralized Controller controls flow table encapsulation by OpenFlow
Measure Policy Updates；Parsing module obtains matching field, instruction set and action collection for parsing OpenFlow control flow table, matches word
Section includes Qos more new information, and instruction set and action collection include that Qos updates operation；Execution module according to matching field for matching
Qos more new information, the Qos that the Qos instruction and action for executing instruction concentration are concentrated update operation；And/or
Receiving module is for receiving the Qos Policy Updates that Centralized Controller is encapsulated by OpenFlow symmetric message；Parsing
Module obtains Qos Policy Updates for parsing OpenFlow symmetric message；Execution module is used to execute Qos rule according to preset rules
Then update.
The disclosure also provides a kind of network element, and network element is core network element and/or access network elements, including such as above-mentioned honeycomb
Network control unit；
It is communicated with Centralized Controller, receives or send out for controlling flow table by OpenFlow symmetric message or OpenFlow
Send OpenFlow control message.
Optionally, core network element is OpenFlow interchanger, and access network elements are the base station OpenFlow, base station and exchange
Machine supports the interface OpenFlow agreement between route test face and data surface.
The disclosure also provides a kind of Centralized Controller, comprising:
Such as above-mentioned cellular network control device, communicated with network element, for by OpenFlow symmetric message or
OpenFlow control flow table receives or sends control message.
The disclosure also provides a kind of beehive network system characterized by comprising
Such as above-mentioned network element；Such as above-mentioned Centralized Controller.
Beehive network system, control method, device and the network element and Centralized Controller that the disclosure provides, pass through OpenFlow
Message sends control instruction, so that wireless network control and data forwarding capability is all used uniformly OpenFlow agreement, without adopting
With two sets of agreements, to simplify the interface protocol of control plane and data surface.
Detailed description of the invention
Fig. 1 shows the flow chart of the cellular network control method of one embodiment of the invention.
The 5G network architecture schematic diagram based on SDN and OpenFlow of Fig. 2 one embodiment of the invention.
Fig. 3 shows the schematic diagram of the structure composed of the OpenFlow of one embodiment of the invention.
Fig. 4 shows the flow chart of the realization billing function based on OpenFlow symmetric message of one embodiment of the invention.
Fig. 5 shows the flow chart that load balancing is realized based on OpenFlow symmetric message of one embodiment of the invention.
Fig. 6 shows the flow chart that billing function is realized based on OpenFlow control flow table of one embodiment of the invention.
Fig. 7 shows the structural schematic diagram of the cellular network control device of one embodiment of the invention.
Fig. 8 shows the structural schematic diagram of the cellular network control device of one embodiment of the invention.
Fig. 9 shows the structural schematic diagram of the network element of one embodiment of the invention.
Figure 10 shows the structural schematic diagram of the network element of one embodiment of the invention.
Figure 11 shows the structural schematic diagram of the beehive network system of one embodiment of the invention.
Specific embodiment
With reference to the accompanying drawings to invention is more fully described, wherein illustrating exemplary embodiment of the present invention.
Fig. 1 shows the flow chart of the cellular network control method of one embodiment of the invention.As shown in Figure 1, this method is main
Include:
Step S100, network element receives the OpenFlow message that Centralized Controller is sent, and OpenFlow message includes
OpenFlow control instruction；
Step S102, parsing OpenFlow message obtains OpenFlow control instruction；
Step S104, OpenFlow control command is executed according to preset rules.
In this way, sending OpenFlow control instruction by extending existing OpenFlow agreement using OpenFlow message, making
Wireless network control and data forwarding capability are all used uniformly OpenFlow agreement, without using two sets of agreements, to simplify
The interface protocol of control plane and data surface.
The 5G network architecture schematic diagram based on SDN and OpenFlow of Fig. 2 one embodiment of the invention.As shown in Fig. 2, the net
Network mainly have Centralized Controller 200, the network element such as interchanger of core-network side 203, access net side 201 base station and WIFI hot spot with
And terminal composition, in SDN, core net framework will simplify, bottom be for data simple process and the network element of forwarding for example
Router/switch/Gateway etc., and Centralized Controller such as MME (Mobility is moved on on control function or network element
Management Entity, mobile management entity MME), billing function etc..The control and data for accessing net side 201 can separate
Also it does not separate.Separation is one of selection, after separation, will move on to Centralized Controller in the control function of part, may be implemented to join
Close the functions such as scheduling, interference coordination, resource management.Therefore, Centralized Controller just needs the network element with core net and access net side
It is communicated, needs corresponding interface protocol.The present invention is based on OpenFlow agreements can be in the SDN network after the separation in fact
Now control and forwarding capability can simplify the agreement of interface surface and control plane, simplify network structure, improve user experience and information
Efficiency of transmission.
Fig. 3 shows the schematic diagram of the structure composed of the OpenFlow of one embodiment of the invention, as shown in figure 3, OpenFlow
Framework is made of OpenFlow Centralized Controller 301 and OpenFlow interchanger 302.Each OpenFlow interchanger
(Switch) 302 by one or more flow tables (flow table), group's table (group table) and one or more
The channel OpenFlow (pipeline) composition.The wherein lookup and forwarding capability of flow table and group's table for realizing data packet,
The channel OpenFlow is the interface for connecting interchanger and outside OpenFlow controller, and the agreement used is OpenFlow agreement
(OF agreement).
In one embodiment, OpenFlow control instruction includes resource joint scheduling, interference coordination, mobile management, meter
Take, QoS service quality updates.
OpenFlow agreement major function is the route forwarding table by flexible design, simplifies the forwarding of data, passes through expansion
OpenFlow agreement is opened up, the support for controlling management function required for wireless network, such as wireless resource scheduling, survey are increased
Amount the reporting of information, user's charging etc., can simplify the agreement of control and data-interface.
In one embodiment, network element includes core network element and/or access network elements.
Core network element is OpenFlow interchanger, and access network elements are the base station OpenFlow, and base station and interchanger prop up
Hold the interface OpenFlow agreement between route test face and data surface.
In one embodiment, OpenFlow message can control flow table for OpenFlow；Or OpenFlow message can be with
For the Experimenter message reserved in OpenFlow symmetric message.
By extending existing OpenFlow agreement, i.e., control instruction is encapsulated by the symmetric message of OpenFlow or passed through
OpenFlow controls flow table and sends OpenFlow control instruction, can be in the data forwarding function of not influencing existing standard and supported
In the case of, the wireless network control function based on SDN is realized, is used uniformly wireless network control and data forwarding capability all
OpenFlow agreement, without using two sets of agreements, to simplify the interface protocol of control plane and data surface.
In one embodiment, the Experimenter message encapsulation OpenFlow reserved using OpenFlow symmetric message is controlled
System instruction.It will encapsulate control instruction and information using symmetric message, and realize information in controller and bottom network element (such as core
The interchanger of net, base station of access net etc.) between transmitting.
OpenFlow agreement supports three kinds of type of messages: Centralized Controller to interchanger (controller-to-
Switch), asynchronous message (asynchronous) and symmetric message (symmetric), every one kind message have multiple sub- message again
Type.Controller-to-switch message is initiated by Centralized Controller, for managing or obtaining switch state；
Asynchronous message is initiated by switch, is used to update and arrive controller network event or switch status variation；
Symmetric message can be initiated by interchanger or controller.For the ease of some functions of developer's test and verification, OpenFlow
A message, that is, Experimenter message have been reserved in symmetric message, in currently practical deployment, if use
OpenFlow protocol version is lower, and message therein is known as Vendor message, but its function is consistent with Experimenter message,
Only title is different, has no effect on and specifically realizes, i.e., can pass through OpenFlow symmetric message in the agreement of lowest version
Vendor message encapsulates control instruction, to save interface protocol, simplifies the protocol architecture of SDN network, improves user experience.
The schematic diagram of the OpenFlow symmetric message Experimenter message of one embodiment of the invention.As follows
Shown in code as above, which can add the customized content of any user,
Such as message can may be implemented in this way by control instruction required for control function and the Information encapsulation of transmitting within the message
Bi-directional between controller and bottom network element.
In one embodiment, by establishing OpenFlow flow table, extension OpenFlow flow table matching field, extension
OpenFlow flow table instruction set and action collection obtain include OpenFlow control instruction OpenFlow control flow table.
OpenFlow flow table is that OpenFlow interchanger is issued to by OpenFlow controller, and each interchanger includes n
Grade flow table (at least 1 grade).The gauge outfit of flow table includes matching field (Match Fields), priority, counter, instruction
(Introductions), timer etc., by the critical field (matching field) of matched data packet, to determine how to handle this
Data packet.In a standard, the effect of flow table only specifies data packet forward rule.
The hope of this programme establishes one solely by extending OpenFlow flow table in the case where not changing existing standard
Vertical flow table realizes the control function of wireless access network and core net, is defined as " control flow table ".Specifically, one is initially set up
Open the flow table of blank.Secondly, extension matching field, adds relevant to control function information, such as user information, user etc.
Grade, QoS (Quality of Service, service quality), radio link parameter information etc..It extends OpenFlow flow table and matches word
Section includes: addition control function information to matching field, and control function information includes user information, user gradation, QoS service matter
Amount, radio link parameter information.
Finally, expansion instruction set and action collection (Action Set), the function of realizing according to specific needs is specific to determine
Operation.
If necessary to carry out statistics charging to customer flow, then it can increase charging regulation；Radio resource is reported if necessary
And link information, in order to which Centralized Controller coordinates resource and disturbed condition between each base station or each standard, then
Increase the instruction etc. that metrical information reports.Specifically, extension OpenFlow flow table instruction set and action collection include: if desired right
Customer flow carries out statistics charging, then increases charging regulation field in extension matching field, increase charging instruction in instruction set,
It is concentrated in action and increases the billing operation for being directed to different user；If desired radio resource and link information are reported, then in extension
Radio resource and link information rule field are reported with field increase, increases in instruction set and reports radio resource and link information
Instruction concentrates in action and increases the rule for reporting radio resource and link information；If desired realize that QoS updates, then in instruction set
Middle increase Qos instruction, concentrates in action and increases the operation for being directed to different Qos.
Fig. 4 shows the flow chart of the billing function based on OpenFlow symmetric message of one embodiment of the invention.Such as Fig. 4 institute
Show, this method specifically includes that
Step S400, what OpenFlow interchanger received that Centralized Controller sends is encapsulated by OpenFlow symmetric message
Charging regulation；
Step S402, OpenFlow interchanger parsing OpenFlow symmetric message obtains charging regulation；
Step S404, according to charging regulation, OpenFlow interchanger collecting charging information；
Step S406, charge information is encapsulated in OpenFlow symmetric message by OpenFlow interchanger is sent to concentration control
Device processed.
Existing OpenFlow agreement is extended, charging regulation is sent by OpenFlow symmetric message, makes wireless network control
It is all used uniformly OpenFlow agreement with data forwarding capability, without using two sets of agreements, to simplify control plane sum number
According to the interface protocol in face.
Beehive network system control method provided in an embodiment of the present invention, can reduce the complexity of SDN network, avoid counting
According to the bottleneck of transmission, while reducing maintenance costs, provides more reliable and efficient service for user.
In one embodiment, Centralized Controller issues the charging regulation of different user to core by Experimenter message
In heart network switch, interchanger belongs to which type of user for the data packet judgement received, thus the corresponding meter of selection
Take rule, is encapsulated in Experimenter message after statistics charge information and is sent to Centralized Controller.To realize number
According to traffic statistics and billing function.Encapsulating control instruction by the symmetric message of OpenFlow is not influencing existing standard institute
In the case of the data forwarding function of support, the wireless network control function based on SDN is realized, control plane and data surface are simplified
Interface protocol.
Fig. 5 shows the flow chart that load balancing is realized based on OpenFlow symmetric message of one embodiment of the invention.Such as Fig. 5
Shown, this method specifically includes that
Step S500, current resource situation that each base station OpenFlow is encapsulated by OpenFlow symmetric message and transmission
To Centralized Controller；
Step S502, Centralized Controller parsing OpenFlow symmetric message obtains the current resource feelings in each base station OpenFlow
Condition；
Step S504, Centralized Controller dispatches user according to the current resource situation of each base station OpenFlow.
In one embodiment, in the exprimenter message of OpenFlow symmetric message
Load balancing rule is defined in " experimenter-defined arbitrary additional data ".
The load balancing rule, which may is that, assumes that UE under the covering at base station A, B two stations, is currently accessed to base station A, when
After controller is collected into the information of each base station, discovery A is busy, B relative free, then can pass through exprimenter
Message allows UE to be switched to B from A to sending instructions under base station A and B.The form of instruction is not fixed, as long as predefined is good
.For example, following four can simply be defined: instruction: HANDOVER；The mark of UE: base station is made to know that UE is cut
It changes；Source base station: base station A；Target BS: base station B.Two base stations switching flow is initiated according to corresponding information.
It is realized by OpenFlow symmetric message and user is dispatched according to resource situation, make wireless network control and data forwarding
Function is all used uniformly OpenFlow agreement, without using two sets of agreements, can simplify the interface of control plane and data surface
Agreement.
In one embodiment, current resource situation includes running time-frequency resource, power, user situation and base station busy situation.
Centralized Controller dispatches user according to the current resource situation of each base station OpenFlow, comprising: by the busy base station OpenFlow
Certain customers are dispatched to the not busy base station OpenFlow.
In one embodiment, network element receives the OpenFlow message from Centralized Controller, and OpenFlow message includes turning
Send out data；Parsing OpenFlow message obtains forwarding data.In one embodiment, network element is received from other network elements
OpenFlow message, OpenFlow message include forwarding number evidence；Parsing OpenFlow message obtains forwarding data.Each network element it
Between by OpenFlow protocol forward data, can be real particular by OpenFlow symmetric message or OpenFlow control flow table
The forwarding capability of existing data, makes wireless network control and data forwarding capability all be used uniformly OpenFlow agreement, without adopting
With two sets of agreements, the interface protocol of control plane and data surface is simplified.
In one embodiment, by Experimenter message, by current resource situation, (including video is provided for each base station
Source, power, user situation etc.) it is reported to Centralized Controller, Centralized Controller is according to each base station busy situation, in not shadow substantially
In the case where ringing user experience, some users are dispatched to not busy base station from busy base station, to realize base station resource or different systems
Combined dispatching between network.Specifically scheduling information can be issued to each base station by Experimenter message as above.
In this way, passing through the symmetric message using the OpenFlow such as encapsulation of Experimenter message, vendor message and wireless network
The control function that wireless network for example accesses net and core net may be implemented in the relevant instruction of control function and information, and can letter
Change network structure.
Fig. 6 shows the flow chart that billing function is realized based on OpenFlow control flow table of one embodiment of the invention.Such as Fig. 7
Shown, this method specifically includes that
Step S600, OpenFlow interchanger receives Centralized Controller and is advised by the charging that OpenFlow controls flow table encapsulation
Then.
Step S602, parsing OpenFlow control flow table obtains matching field, instruction set and collection of taking action, matching field include
Charge information, instruction set and action collection include billing operation.
Step S604, OpenFlow interchanger matches charging regulation according to matching field, and the charging for executing instruction concentration refers to
Enable and take action the billing operation concentrated.
In one embodiment, increase n row content, the charging rule of the specified type of user of every a line in " control flow table "
Then.Increase user information such as set meal type, grade etc. in matching field, increases charging instruction in instruction field, collect in action
It is middle to increase specific traffic statistics and billing operation order.
The gauge outfit of flow table includes matching field (Match Fields), priority, counter, instruction
(Introductions), timer etc., by the critical field (matching field) of matched data packet, to determine how to handle this
Data packet.
It in one embodiment, can be by extending existing former flow table, it is not necessary to redefine new flow table.When existing flow table not
When meet demand, flow table can also be redefined according to actual needs.
In one embodiment, when continuing to use existing flow table, can mainly by enhancing matching field, instruction and action collection come
Realize control function.By taking charging as an example, prepaid user needs to judge whether that there are also telephone expenses, it is therefore desirable to relatively frequently by information
It is reported to controller, controller calculates spending amount according to unit price, and then matches whether there are also credit balances；Postpaid service user can
To there is a degree of overdraw, therefore statistical information report cycle can be longer.It, can be with below by taking charge on traffic function as an example
Definition:
Match Fields=101；// indicate prepaid user's traffic statistics；
Match Fields=102；// indicate postpaid service user's traffic statistics, according to user type and actual demand,
Can also further it classify to user；
……
Also increase command adapted thereto, such as " prepaid user's traffic statistics write-in action collection " in corresponding instruction.
In the action (action) of action collection, the action such as " prepaid user's traffic statistics ", such as definition statistics are defined
The report cycle etc. of information.
Above-mentioned rule need to pre-define.When receiving data packet, interchanger is matched, when being matched to 101, according to finger
(instruction) is enabled to add the action of " prepaid user's traffic statistics " in action collection (action set).In all streams
After table all matches, action, which is concentrated, might have multiple action, be executed.In this way, can simplify the control of SDN network
Agreement processed simplifies agreement so that control and forwarding capability all pass through OpenFlow protocol realization.
In one embodiment, OpenFlow interchanger receives Centralized Controller and controls flow table encapsulation by OpenFlow
Qos rules for quality of service updates；Parsing OpenFlow control flow table obtains matching field, instruction set and action collection, matching field
Including Qos more new information, instruction set and action collection include that Qos updates operation；Qos more new information is matched according to matching field, is held
The Qos that Qos instruction and action in row instruction set are concentrated updates operation.
Increase n row content in " control flow table ", every a line specifies one kind QoS rule.Increase QoS letter in matching field
Breath increases QoS instruction in instruction field, concentrates in action and increase the operation for being directed to different QoS.
In one embodiment, OpenFlow interchanger receives what Centralized Controller was encapsulated by OpenFlow symmetric message
Qos Policy Updates；Parsing OpenFlow symmetric message obtains Qos Policy Updates；Qos Policy Updates are executed according to preset rules.
Newest QoS rule is encapsulated into Experimenter message by Centralized Controller, is issued to each core network element
In.
Fig. 7 shows the structural schematic diagram of the cellular network control device of one embodiment of the invention, as shown in fig. 7, the honeycomb
Network control unit 700 includes:
Receiving module 702, for receiving the OpenFlow message of Centralized Controller transmission, OpenFlow message includes
OpenFlow control instruction；
Parsing module 704 obtains OpenFlow control instruction for parsing OpenFlow message；
Execution module 706, for executing OpenFlow control command according to preset rules.
The cellular network control device of the embodiment of the present invention sends control instruction by OpenFlow message, makes wireless network
Network control and data forwarding capability be all used uniformly OpenFlow agreement, without use two sets agreements, simplify control plane with
The interface protocol of data surface.
In one embodiment, OpenFlow message is that OpenFlow controls flow table；And/or
OpenFlow message is the Experimenter message reserved in OpenFlow symmetric message.
Fig. 8 shows the structural schematic diagram of the cellular network control device of one embodiment of the invention, as shown in figure 8, the honeycomb
Network control unit 800 includes:
Package module 802, the Experimenter message for being reserved using OpenFlow symmetric message are encapsulated
OpenFlow control instruction；Package module 802 is also used to by establishing OpenFlow flow table, extension OpenFlow flow table matches word
Section, extension OpenFlow flow table instruction set and action collection obtain include OpenFlow control instruction OpenFlow control flow table.
In one embodiment, OpenFlow control instruction includes resource joint scheduling, interference coordination, mobile management, meter
Take, QoS service quality updates.
In one embodiment, device further includes sending module 904.
Receiving module 801 is used to receive the charging rule of Centralized Controller transmission encapsulated by OpenFlow symmetric message
Then；Parsing module 803 obtains charging regulation for parsing OpenFlow symmetric message；Execution module 805 according to charging for advising
Then, collecting charging information；Sending module 904 is sent to concentration for charge information to be encapsulated in OpenFlow symmetric message
Controller.
In one embodiment, package module 802 is used for the current resource situation encapsulated by OpenFlow symmetric message
And it is sent to Centralized Controller, Centralized Controller parsing OpenFlow symmetric message obtains the current resource in each base station OpenFlow
Situation, and each base station OpenFlow is sent to by the instruction that OpenFlow symmetric message encapsulates scheduling user；
Execution module 805 is used to execute Centralized Controller according to the instruction of current resource situation scheduling user.
In one embodiment, current resource situation includes running time-frequency resource, power, user situation and base station busy situation；
And/or
Execution module 805 is used to dispatch user according to the current resource situation of each base station OpenFlow, comprising: will hurry
The certain customers of the base station OpenFlow are dispatched to the not busy base station OpenFlow.
In one embodiment, receiving module 801 is for receiving the OpenFlow message from Centralized Controller, OpenFlow
Symmetric message encapsulation forwarding data packet；Parsing module 903 obtains forwarding data for parsing OpenFlow symmetric message；Receive mould
Block 901 includes forwarding data for receiving the OpenFlow symmetric message from other network elements, OpenFlow；Parsing module 903
Forwarding data are obtained for parsing OpenFlow message.
In one embodiment, extension matching field includes: to add control function information to matching field, control function information
Including user information, user gradation, QoS service quality, radio link parameter information.
Extension matching field, expansion instruction set and action collection include:
If desired statistics charging is carried out to customer flow, then increases charging regulation field in extension matching field, is instructing
It concentrates and increases charging instruction, concentrated in action and increase the billing operation for being directed to different user；
And/or
If desired radio resource and link information are reported, then reports radio resource and link to believe in extension matching field increase
Rule field is ceased, increases in instruction set and radio resource and link information is reported to instruct, increases in action concentration and reports wireless money
The rule in source and link information；
And/or
If desired it realizes that QoS updates, then increases Qos instruction in instruction set, be directed to different Qos taking action to concentrate to increase
Operation.
In one embodiment, receiving module 801 is used to receive Centralized Controller and controls flow table encapsulation by OpenFlow
Charging regulation；
Parsing module 803 obtains matching field, instruction set and action collection for parsing OpenFlow control flow table, matches word
Section includes charge information, and instruction set and action collection include billing operation；
Execution module 805 is used to match charging regulation according to matching field, executes instruction the charging instruction and action of concentration
The billing operation of concentration.
In one embodiment, receiving module 801 is used to receive Centralized Controller and controls flow table encapsulation by OpenFlow
Qos rules for quality of service updates；Parsing module 803 for parse OpenFlow control flow table obtain matching field, instruction set and
Action collection, matching field include Qos more new information, and instruction set and action collection include that Qos updates operation；Execution module 805 is used for
Qos more new information is matched according to matching field, the Qos that the Qos instruction and action for executing instruction concentration are concentrated updates operation；
And/or
Receiving module 801 is for receiving the Qos Policy Updates that Centralized Controller is encapsulated by OpenFlow symmetric message；Solution
Analysis module 803 obtains Qos Policy Updates for parsing OpenFlow symmetric message；Execution module 805 is used for according to preset rules
Execute Qos Policy Updates.
Fig. 9 shows the structural schematic diagram of the network element of one embodiment of the invention, as shown in figure 9, network element 900 is core network element
And/or access network elements, network element 900 include cellular network control device 902 as above；The network element is communicated with Centralized Controller
Letter receives or sends OpenFlow control message for controlling flow table by OpenFlow symmetric message or OpenFlow.
In one embodiment, core network element is OpenFlow interchanger, and access network elements are the base station OpenFlow, base station
And interchanger supports the interface OpenFlow agreement between route test face and data surface.
Figure 10 shows the structural schematic diagram of the Centralized Controller of one embodiment of the invention, as shown in Figure 10, the centralized control
Device 1000 includes cellular network control device 1002 as above, is communicated with network element, for by OpenFlow symmetric message or
OpenFlow control flow table receives or sends control message.
Figure 11 shows the structural schematic diagram of the beehive network system of one embodiment of the invention, as shown in figure 11, the Cellular Networks
Network system 1100, including such as said network element 1102 and above-mentioned Centralized Controller 1104.
The beehive network system of the embodiment of the present invention extends existing OpenFlow agreement, is sent by OpenFlow message
Control instruction makes wireless network control and data forwarding capability all be used uniformly OpenFlow agreement, without using two sets of associations
View, to simplify the interface protocol of control plane and data surface.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (17)
1. a kind of cellular network control method characterized by comprising
The OpenFlow message that Centralized Controller is sent is received, the OpenFlow message is to reserve in OpenFlow symmetric message
Experimenter message, the OpenFlow message includes OpenFlow control instruction；
It parses the OpenFlow message and obtains the OpenFlow control instruction；
The OpenFlow control instruction is executed according to preset rules；
The method also includes:
The OpenFlow control instruction is encapsulated by the Experimenter message that OpenFlow symmetric message is reserved；Respectively
Current resource situation that the base station OpenFlow is encapsulated by OpenFlow symmetric message is simultaneously sent to the Centralized Controller；Institute
It states Centralized Controller and parses the OpenFlow symmetric message and obtain the current resource situation in each base station OpenFlow；The concentration
Controller dispatches user according to the current resource situation of each base station OpenFlow.
2. the method according to claim 1, wherein including
The OpenFlow control instruction includes resource joint scheduling, interference coordination, mobile management, charging or QoS service matter
Amount updates；
And/or
The OpenFlow message is that OpenFlow controls flow table, by establishing OpenFlow flow table, extension OpenFlow flow table
Matching field, extension OpenFlow flow table instruction set and action collection obtain include OpenFlow control instruction OpenFlow control
Flow table.
3. according to the method described in claim 2, it is characterised by comprising:
OpenFlow interchanger receives the charging regulation encapsulated by OpenFlow symmetric message that the Centralized Controller is sent；
The OpenFlow interchanger parses the OpenFlow symmetric message and obtains charging regulation；It is described according to the charging regulation
OpenFlow interchanger collecting charging information；The charge information is encapsulated in the OpenFlow by the OpenFlow interchanger
The Centralized Controller is sent in symmetric message.
4. according to the method described in claim 3, it is characterised by comprising:
The current resource situation includes running time-frequency resource, power, user situation and base station busy situation；
And/or
The Centralized Controller includes: according to the current resource situation scheduling user of each base station OpenFlow will be busy
The certain customers of the base station OpenFlow are dispatched to the not busy base station OpenFlow.
5. the method according to claim 1, wherein
The OpenFlow message from Centralized Controller is received, the OpenFlow message includes forwarding number evidence；Described in parsing
OpenFlow message obtains forwarding data；
And/or
The OpenFlow message from other network elements is received, the OpenFlow message includes forwarding number evidence；Described in parsing
OpenFlow message obtains forwarding data.
6. according to the method described in claim 2, it is characterized in that,
The extension OpenFlow flow table matching field includes:
Control function information is added to matching field, the control function information includes user information, user gradation, QoS service
Quality, radio link parameter information；
And/or
Extension OpenFlow flow table instruction set and action collection include:
If desired statistics charging is carried out to customer flow, then increases charging regulation field in extension matching field, in instruction set
Increase charging instruction, is concentrated in action and increase the billing operation for being directed to different user；
And/or
If desired radio resource and link information are reported, then reports radio resource and link information to advise in extension matching field increase
Then field increases in instruction set and radio resource and link information is reported to instruct, action concentrate increase report radio resource and
The rule of link information；
And/or
If desired it realizes that QoS updates, then increases Qos instruction in instruction set, concentrated in action and increase the behaviour for being directed to different Qos
Make.
7. according to the method described in claim 6, it is characterised by comprising:
OpenFlow interchanger receives the charging regulation that the Centralized Controller controls flow table encapsulation by OpenFlow；Parsing institute
It states OpenFlow control flow table and obtains matching field, instruction set and action collection, the matching field includes charge information, the finger
Enabling collection and action collection includes billing operation；The OpenFlow interchanger matches charging regulation according to matching field, described in execution
The billing operation that charging instruction and the action in instruction set are concentrated；
And/or
The method also includes:
OpenFlow interchanger receives the Qos rules for quality of service that the Centralized Controller controls flow table encapsulation by OpenFlow
It updates；It parses the OpenFlow control flow table and obtains matching field, instruction set and action collection, the matching field includes Qos
More new information, described instruction collection and action collection include that Qos updates operation；Qos more new information is matched according to matching field, executes institute
It states the Qos that Qos instruction and the action in instruction set are concentrated and updates operation；
And/or
The method also includes:
OpenFlow interchanger receives the Qos Policy Updates that the Centralized Controller is encapsulated by OpenFlow symmetric message；Solution
It analyses the OpenFlow symmetric message and obtains Qos Policy Updates；The Qos Policy Updates are executed according to preset rules.
8. a kind of cellular network control device characterized by comprising
Receiving module, for receiving the OpenFlow message of Centralized Controller transmission, the OpenFlow message is OpenFlow
The Experimenter message reserved in symmetric message, the OpenFlow message includes OpenFlow control instruction；
Parsing module obtains the OpenFlow control instruction for parsing the OpenFlow message；
Execution module, for executing the OpenFlow control instruction according to preset rules；
Described device further include:
Package module, the Experimenter message for being reserved using OpenFlow symmetric message are encapsulated the OpenFlow and controlled
System instruction；The current resource situation that is encapsulated by OpenFlow symmetric message is simultaneously sent to the Centralized Controller, concentrates control
Device processed parses the OpenFlow symmetric message and obtains the current resource situation in each base station OpenFlow, and passes through OpenFlow pairs
The instruction of message encapsulation scheduling user is claimed to be sent to each base station OpenFlow；The execution module is for executing the concentration control
Device processed dispatches the instruction of user according to current resource situation.
9. device according to claim 8, which is characterized in that the OpenFlow message is that OpenFlow controls flow table；
Described device further include:
Package module, for by establishing OpenFlow flow table, extension OpenFlow flow table matching field, extension OpenFlow flow
Table instruction set and action collection obtain include OpenFlow control instruction OpenFlow control flow table；
And/or
The OpenFlow control instruction includes resource joint scheduling, interference coordination, mobile management, charging, QoS service quality
It updates.
10. device according to claim 9, which is characterized in that
The receiving module is used to receive the charging rule encapsulated by OpenFlow symmetric message that the Centralized Controller is sent
Then；The parsing module obtains charging regulation for parsing the OpenFlow symmetric message；The execution module is used for basis
The charging regulation, collecting charging information；Described device further includes sending module, described for the charge information to be encapsulated in
The Centralized Controller is sent in OpenFlow symmetric message.
11. device according to claim 10 characterized by comprising
The current resource situation includes running time-frequency resource, power, user situation and base station busy situation；
And/or
The execution module is used to dispatch user according to the current resource situation of each base station OpenFlow, comprising: will hurry
The certain customers of the base station OpenFlow are dispatched to the not busy base station OpenFlow.
12. device according to claim 9, which is characterized in that
The receiving module is for receiving the OpenFlow message from Centralized Controller, the OpenFlow symmetric message encapsulation
Forward data packet；The parsing module obtains forwarding data for parsing the OpenFlow symmetric message；
And/or
For the receiving module for receiving the OpenFlow symmetric message from other network elements, the OpenFlow includes forwarding number
According to；The parsing module obtains forwarding data for parsing the OpenFlow message.
13. device according to claim 10, which is characterized in that
The extension matching field includes:
Control function information is added to matching field, the control function information includes user information, user gradation, QoS service
Quality, radio link parameter information；
And/or
The extension matching field, expansion instruction set and action collection include:
If desired statistics charging is carried out to customer flow, then increases charging regulation field in extension matching field, in instruction set
Increase charging instruction, is concentrated in action and increase the billing operation for being directed to different user；
And/or
If desired radio resource and link information are reported, then reports radio resource and link information to advise in extension matching field increase
Then field increases in instruction set and radio resource and link information is reported to instruct, action concentrate increase report radio resource and
The rule of link information；
And/or
If desired it realizes that QoS updates, then increases Qos instruction in instruction set, concentrated in action and increase the behaviour for being directed to different Qos
Make.
14. device according to claim 13 characterized by comprising
The receiving module is used to receive the charging regulation that the Centralized Controller controls flow table encapsulation by OpenFlow；It is described
Parsing module obtains matching field, instruction set and action collection, the matching field for parsing the OpenFlow control flow table
Including charge information, described instruction collection and action collection include billing operation；The execution module according to matching field for matching
Charging regulation executes the charging instruction that described instruction is concentrated and the billing operation that the action is concentrated；
And/or
Described device further include:
The receiving module is used to receive the Qos Service Quality gauge that the Centralized Controller controls flow table encapsulation by OpenFlow
Then update；The parsing module obtains matching field, instruction set and action collection, institute for parsing the OpenFlow control flow table
Stating matching field includes Qos more new information, and described instruction collection and action collection include that Qos updates operation；The execution module is used for
Qos more new information is matched according to matching field, the Qos instruction that described instruction is concentrated is executed and the Qos that the action is concentrated updates
Operation；
And/or
The receiving module is for receiving the Qos Policy Updates that the Centralized Controller is encapsulated by OpenFlow symmetric message；
The parsing module obtains Qos Policy Updates for parsing the OpenFlow symmetric message；The execution module is used for basis
Preset rules execute the Qos Policy Updates.
15. a kind of network element, which is characterized in that the network element is core network element and/or access network elements, including such as claim
Any cellular network control device in 8-14；
It communicates with Centralized Controller, is received or sent for controlling flow table by OpenFlow symmetric message or OpenFlow
OpenFlow control message.
16. a kind of Centralized Controller characterized by comprising
Cellular network control device as described in any in claim 8-14, communicates with network element, for passing through OpenFlow
Symmetric message or OpenFlow control flow table receive or send control message.
17. a kind of beehive network system characterized by comprising
Network element as claimed in claim 15；
Centralized Controller as claimed in claim 16.
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| CN107094119B (en) * | 2017-07-07 | 2019-10-25 | 广州市品高软件股份有限公司 | A kind of control method for equalizing load and system based on cloud computing and SDN network |
| CN111781880B (en) * | 2020-07-16 | 2021-10-01 | 青岛海信日立空调系统有限公司 | Centralized control system for household appliances |
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