CN104640157A - Method and system for heterogeneous network convergence - Google Patents
Method and system for heterogeneous network convergence Download PDFInfo
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- CN104640157A CN104640157A CN201310545043.3A CN201310545043A CN104640157A CN 104640157 A CN104640157 A CN 104640157A CN 201310545043 A CN201310545043 A CN 201310545043A CN 104640157 A CN104640157 A CN 104640157A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
Abstract
The present invention provides a method and system for heterogeneous network convergence. The method comprises: configuring a network anchor for interconnection between heterogeneous networks and communication between a heterogeneous network and an external network, wherein the network anchor is responsible for receiving and forwarding user data; and configuring a network controller which is in communication connection with the network anchor and a user terminal, wherein the network controller collects different network information through the network anchor and the user terminal, conducts centralized control of inter-operation between the heterogeneous networks, and conducts control of convergence of multilevel heterogeneous networks, and the user terminal is in communication connection with the network anchor through at least one data transferring channel. The method and system in the present invention converge heterogeneous network data at the network anchor and the user terminal through constructing a plurality of data communication channels between the user terminal and the network anchor, enable seamless vertical inter-operation of heterogeneous network convergence by using a centralized control strategy of a network controller, and can improve network utilization rate and reduce cost through flexibly controlling the convergence process according to states of different networks.
Description
Technical field
The invention belongs to communication technical field, relate to a kind of communication means of heterogeneous network, particularly relate to a kind of method and system of heterogeneous network converged.
Background technology
Along with the fast development of wireless communication technology, for various application demand radio network technique continue to bring out, as the LTE(Long Term Evolution mainly for mobile communication application, Long Term Evolution), for the WiFi(Wireless Fidelity of short-distance wireless communication, the WLAN (wireless local area network) based on IEEE 802.11 standard).These radio network techniques, because technical characterstics different separately determines to replace another radio network technique by a kind of radio network technique.Such as LTE technology cannot replace the WiFi technology for solving the application of hot zones wideband data, and equally, WiFi technology also cannot replace LTE technology.How to adopt the wireless network convergence of different technologies to form a Wideband wireless network architecture these, be the emphasis that current industry and academia pay close attention to.
Relevant standardization body is as 3GPP(the 3rd Generation Partnership Project, third generation partner program) and IEEE(Institute of Electrical and Electronic Engineers, IEEE) propose ANDSF(Access Network Discovery And Selection Function respectively, access network discovery and selection function) and Hot Spot 2.0(focus 2.0) etc. the interoperability scheme of heterogeneous network converged.These schemes, all to solve the seamless experience of interoperability between heterogeneous network for target, reduce switching delay between heterogeneous wireless network as much as possible.But, all there is following problem in these schemes:
1) be all carry out wireless network planning respectively between heterogeneous network, only consider the conditions such as field capacity, user's request, wireless environment and quality of service requirements in network internal, lack the unite planning between heterogeneous network, also unlikely carry out unite planning.
2) to lacking a kind of state information that can consider heterogeneous networks fully between multi-level heterogeneous network, the power load distributing between heterogeneous network and access procedure effectively being controlled, and utilizes the controlling mechanism of Internet resources efficiently.
3) owing to lacking unite planning between heterogeneous network, terminal is caused cannot to be guaranteed from a network to the registration the handoff procedure of another one network, registration and authentication.
In sum, need the fusion method between a kind of heterogeneous network, the situations such as the transmission bandwidth of network, load, the signing attribute of user and the quality requirement of business can be considered, the interoperability process of terminal between heterogeneous network is effectively controlled, reaches and can a kind of seamless interoperability be provided to experience to user and improve the object of efficient network resource usage.
Summary of the invention
The defect of prior art in view of the above, the object of the present invention is to provide a kind of method and system of heterogeneous network converged, the state information of heterogeneous networks can not be considered fully for solving bridging technology between existing heterogeneous network, effectively cannot control the power load distributing between heterogeneous network and access, handoff procedure, cannot the problem of efficiency utilization Internet resources.
For achieving the above object and other relevant objects, the invention provides a kind of method and system of heterogeneous network converged.
A method for heterogeneous network converged, comprising: arrange be used for interconnected between heterogeneous network and with the network anchor point of external network communication; Described network anchor point is responsible for receiving, forwarding user data; To arrange and described network anchor point and user terminal communicate the network controller be connected respectively; Described network controller collects the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network; Described user terminal is reportedly passed tunnel by least 1 number and is communicated with described network anchor point and be connected.
Preferably, the process that described network controller controls multi-level heterogeneous network converged comprises: the signing attribute of network controller according to network load situation, user and the quality requirement of business, sets up and at least 1 number activated between described user terminal and network anchor point reportedly passs tunnel; Network controller controls to issue Data dissemination strategy to user terminal and network anchor point, make described user terminal and network anchor point according to described Data dissemination strategy by application data and transmit tunnel from the data that the data that external network receives are placed on different activation and transmit, and the application layer of the data aggregate rear line terminal that tunnel receive will be transmitted from the data activated or external network forwards.
Preferably, the process of the interoperability between described network controller centralized control heterogeneous network comprises: pass through the data transmission tunnel between an objective network and network anchor point at described user terminal according to the pre-established user terminal in position of the former network of self current attachment, namely, behind objective network tunnel, described network controller has set up information to user terminal feedback tunnel; So that described user terminal initiates when meeting access conditions to set up with objective network link-attached process of eating dishes without rice or wine according to wireless coverage quality criterion; If successful connection, user terminal then initiates to activate tunneled requests to network controller; If connect unsuccessful, user terminal then continues the quality of wireless channel searching for and measure WAP (wireless access point) or wireless base station; Described network controller feeds back tunnel activation success command to user terminal in the successful situation of tunnel activation; When needs dismounting user terminal is connected with former internetwork link of eating dishes without rice or wine, described network controller is after the former network tunnel deexcitation request receiving user terminal transmission, former network tunnel deactivation command is fed back, so that former network tunnel deexcitation is completed signaling by user terminal send described network controller to by objective network to user terminal; Network controller controls described network anchor point and performs former network tunnel dismantling operation.
Preferably, the process of the interoperability between described network controller centralized control heterogeneous network also comprises: described network anchor point converges the data of former network tunnel and the data in objective network tunnel, and the data after converging is distributed on former network tunnel and objective network tunnel respectively; Described user terminal converges the data of former network tunnel and the data in objective network tunnel, and by the data retransmission after convergence to the application layer of user terminal, and application layer data is distributed respectively on former network tunnel and objective network tunnel; Wherein, described former network tunnel is the data transmission tunnel that user terminal is communicated with network anchor point by former network.
Preferably, the process that described network controller controls the fusion of multi-level heterogeneous network comprises administering and maintaining of heterogeneous wireless access point, described network controller is received and is collected and the new wireless access dot information reported by the tunnel of current activation by user terminal, upgrade the topological relation context-descriptive of wireless base station and WAP (wireless access point), be specially: described network controller collects the information on load of described WAP (wireless access point) from gateway belonging to the WAP (wireless access point) heterogeneous network, the load condition of statistics WAP (wireless access point); Described network controller collects the information on load of wireless base station from heterogeneous network, the load condition of statistics wireless base station; Described network controller is the positional information in heterogeneous network according to wireless base station and WAP (wireless access point), wireless base station and WAP (wireless access point) are associated, obtain the topological relation of wireless base station and WAP (wireless access point), and load status information is added in topological relation, export the topological relation context-descriptive of wireless base station and WAP (wireless access point); Described network controller, according to the load condition update cycle pre-set, is updated periodically the topological relation context-descriptive of wireless base station and WAP (wireless access point).
Preferably, the process that described network controller controls the fusion of multi-level heterogeneous network also comprises the load management of heterogeneous network, be specially: described network controller collects the information on load of heterogeneous network, and basic, normal, high and red line 4 kinds of state grades are set according to different load conditions; When the load condition of heterogeneous network is in low or middle state, network controller allows foundation and the activation request in response tunnel, otherwise the foundation in refusal response tunnel and activation request; When the load condition of heterogeneous network is in high state, network controller to be contracted attribute, QoS of survice demand and tunnel activation situation according to user, and the some tunnels of deexcitation, are reduced to normal level by the load of heterogeneous network; When the load condition of heterogeneous network is in red line state, network controller removes some tunnels according to user's attribute of contracting, and eliminates the red line load condition of heterogeneous network.
A system for heterogeneous network converged, comprising: network anchor point, is arranged between heterogeneous networks, for interconnected between heterogeneous network and and external network communication; Described network anchor point is responsible for receiving, forwarding user data; Network controller, to communicate respectively with user terminal with described network anchor point and is connected, and is collected the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network; Described user terminal is reportedly passed tunnel by least 1 number and is communicated with described network anchor point and be connected.
Preferably, described network controller comprises: the pre-established module in tunnel, be connected with described user terminal communication, the data transmission tunnel between an objective network and network anchor point is passed through according to the pre-established user terminal in position of the former network of self current attachment at user terminal, namely, behind objective network tunnel, information has been set up to user terminal feedback tunnel; Tunnel activation module, is connected with described user terminal communication, after user terminal initiates to activate tunneled requests to network controller, to user terminal feedback tunnel activation success command; Go tunnel activation module, be connected with described user terminal communication, after the tunnel deexcitation request receiving user terminal transmission, to user terminal feedback tunnel deactivation command; Tunnel teardown module, is connected with described user terminal communication, after the deexcitation receiving user terminal completes signaling, controls described network anchor point and performs tunnel teardown operation; Release module, is connected with network anchor point respectively with described user terminal, for issuing convergence strategy to user terminal and network anchor point; WAP (wireless access point) administration module, is connected with network anchor point respectively with described user terminal, the new wireless access dot information reported by the tunnel of current activation, upgrades the topological relation context-descriptive of wireless base station and WAP (wireless access point); Network load monitoring module, is connected with network anchor point respectively with described user terminal, collects the information on load of heterogeneous network, the load condition of statistics heterogeneous network, and the activation and the deexcitation that adjust tunnel according to the load condition of heterogeneous network.
Preferably, different data transmit the data communication channel that tunnel represents heterogeneous networks in heterogeneous network.
Preferably, described heterogeneous network comprises mobile network, WiFi net, WiMax net or/and the Internet.
As mentioned above, the method and system of heterogeneous network converged of the present invention, have following beneficial effect:
The present invention is by building many data communication tunnels between user terminal and network anchor point, by heterogeneous network data in network anchor point and the polymerization of user terminal place, polymerization controlling functions is peeled off from internetwork congruent point, adopt the central controlled strategy of network controller, make the fusion of heterogeneous network have seamless vertical interoperability to experience, and polymerization process can be controlled flexibly according to the state of heterogeneous networks, improve the utilance of network and reduce costs.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for heterogeneous network converged of the present invention.
Fig. 2 is the schematic flow sheet of the transmission of user data in heterogeneous network of the present invention, reception, polymerization and distribution procedure.
Fig. 3 is the schematic flow sheet of the soft switching process between heterogeneous network of the present invention.
Fig. 4 is the schematic flow sheet of the process that administers and maintains of heterogeneous wireless access point of the present invention.
Fig. 5 is the schematic flow sheet of the load management process of heterogeneous network of the present invention.
Fig. 6 is the structural representation of the system of heterogeneous network converged of the present invention.
Fig. 7 is the structural representation of network controller of the present invention.
Element numbers explanation
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
Embodiment
The present embodiment provides a kind of method of heterogeneous network converged, and as shown in Figure 1, the method for described heterogeneous network converged comprises:
Arrange be used for interconnected between heterogeneous network and with the network anchor point of external network communication; Described network anchor point is responsible for receiving, forwarding user data.Network anchor point, as node interconnected between heterogeneous network and the gateway with external network communication, is only responsible for receiving and forwarding user data.
To arrange and described network anchor point and user terminal communicate the network controller be connected respectively; Described network controller collects the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network; Described user terminal is reportedly passed tunnel by least 1 number and is communicated with described network anchor point and be connected.Network controller is responsible for the information of collecting heterogeneous networks, and the interoperability between centralized control heterogeneous network controls the fusion process of heterogeneous network.Network controller controls many data transmission tunnel set up between user terminal and network anchor point by different isomerization network.The user data transmitted by heterogeneous networks is in user terminal and network anchor point polymerization.The convergence strategy that user terminal and network anchor point issue according to network controller, sends and receives the data of different attribute in different tunnels.The foundation of network controller charge tunnel, activation, deexcitation and dismounting.
Further, described tunnel (abbreviation of data transmission tunnel) has the feature of multiaddress, many hosts, multithread, can provide stable, orderly and reliable data delivery service between two communication end points.Described convergence strategy comprises the load, congestion state etc. of network wireless covering quality and network.User terminal is to the wireless coverage quality information of network controller report network, network controller considers the load condition of network, user contracts the factor such as attribute and quality of service requirements, control the foundation in tunnel, activation, deexcitation and dismounting, realize the soft switching process between heterogeneous network.
Further, as shown in Figure 2, described network controller control the transmission of user data in heterogeneous network, reception, polymerization and distribution process comprise:
The signing attribute of network controller according to network load situation, user and the quality requirement of business, set up and at least 1 number activated between described user terminal and network anchor point reportedly passs tunnel;
Network controller controls to issue Data dissemination strategy to user terminal and network anchor point, make described user terminal and network anchor point according to described Data dissemination strategy by application data and transmit tunnel from the data that the data that external network receives are placed on different activation and transmit, and the application layer of the data aggregate rear line terminal that tunnel receive will be transmitted from the data activated according to distribution policy or external network forwards.
As shown in Figure 3, the process (soft switching process namely between heterogeneous network) of the interoperability between described network controller centralized control heterogeneous network comprises:
The data transmission tunnel between an objective network and network anchor point is passed through according to the pre-established user terminal in position of the former network of self current attachment at described user terminal, namely behind objective network tunnel, described network controller has set up information to user terminal feedback tunnel, now, user terminal and network controller can upgrade the tunnel context information of self respectively; So that the quality of wireless channel of described user terminal search and measurement WAP (wireless access point) or wireless base station, and initiate when meeting access conditions to set up with objective network link-attached process of eating dishes without rice or wine according to wireless coverage quality criterion; If successful connection, user terminal then initiates to activate tunneled requests to network controller; If connect unsuccessful, user terminal then continues the quality of wireless channel searching for and measure WAP (wireless access point) or wireless base station.Further, the process of establishing in described objective network tunnel comprises the former network of user terminal by current attachment, registration on objective network, registration and authentication process, also comprise the address assignment of objective network, tunnel port assignment and the tunnel establishment procedure between network anchor point and objective network.
Described network controller is to user terminal feedback tunnel activation success command in the successful situation of tunnel activation, and now, user terminal and network controller also can upgrade tunnel context information respectively; So that network anchor point converges the data of former network tunnel and the data in objective network tunnel, and the data after converging are distributed respectively on former network tunnel and objective network tunnel; With so that described user terminal converges the data of former network tunnel and the data in objective network tunnel, and by the data retransmission after converging to the application layer of user terminal, and application layer data to be distributed respectively on former network tunnel and objective network tunnel; Wherein, described former network tunnel is the data transmission tunnel that user terminal is communicated with network anchor point by former network.That is, if the success of objective network tunnel activation, user terminal and network anchor point can above receive in former tunnel and the new tunnel (i.e. objective network tunnel) activated and send data; If otherwise objective network tunnel activation is unsuccessful, user terminal and network anchor point still receive and send data on former tunnel.
When needs dismounting user terminal is connected with former internetwork link of eating dishes without rice or wine, described network controller is after the former network tunnel deexcitation request receiving user terminal transmission, former network tunnel deactivation command is fed back, so that former network tunnel deexcitation is completed signaling by user terminal send described network controller to by objective network to user terminal; Network controller controls described network anchor point and performs former network tunnel dismantling operation.The deactivating operation that user terminal performs is the interface of deexcitation user terminal and former network, the deactivating operation (also can claim dismantling operation) that network anchor point performs is the interface of deexcitation (dismounting) network anchor point and former network, so far the former network tunnel dismounting work just between completing user terminal and network anchor point, now user terminal and network controller all can upgrade the tunnel context information of self.
As shown in Figure 4, the process that described network controller controls the fusion of multi-level heterogeneous network comprises administering and maintaining of heterogeneous wireless access point, described network controller is received and is collected and the new wireless access dot information reported by the tunnel of current activation by user terminal, upgrade the topological relation context-descriptive of wireless base station and WAP (wireless access point), be specially:
Described network controller collects the information on load of described WAP (wireless access point) from the affiliated gateway of the WAP (wireless access point) (Access Point, AP) heterogeneous network, the load condition of statistics WAP (wireless access point).The statistic for receiver of the load condition of WAP (wireless access point) the up-downgoing data throughout of AP and the number of access point subordinate terminal.
Described network controller collects the information on load of wireless base station from heterogeneous network, the load condition of statistics wireless base station.The load condition of wireless base station combines the up-downgoing throughput of wireless base station and the number of base station subordinate terminal.
Described network controller is the positional information in heterogeneous network according to wireless base station and WAP (wireless access point), wireless base station and WAP (wireless access point) are associated, obtain the topological relation of wireless base station and WAP (wireless access point), and load status information is added in topological relation, export the topological relation context-descriptive of wireless base station and WAP (wireless access point);
Described network controller, according to the load condition update cycle pre-set, is updated periodically the topological relation context-descriptive of wireless base station and WAP (wireless access point).
As shown in Figure 5, the process that described network controller controls the fusion of multi-level heterogeneous network also comprises the load management of heterogeneous network, is specially:
Described network controller collects the information on load of heterogeneous network, and arranges basic, normal, high and red line 4 kinds of state grades according to different load conditions;
When the load condition of heterogeneous network is in low or middle state, network controller allows foundation and the activation request in response tunnel, otherwise the foundation in refusal response tunnel and activation request;
When the load condition of heterogeneous network is in high state, network controller to be contracted attribute, QoS of survice demand and tunnel activation situation according to user, and the some tunnels of deexcitation, are reduced to normal level by the load of heterogeneous network;
When the load condition of heterogeneous network is in red line state, network controller removes some tunnels according to user's attribute of contracting, and eliminates the red line load condition of heterogeneous network.
The present invention is by arranging network anchor point, different heterogeneous network links is got up, and network controller is set, the controlling functions in the interoperability process between heterogeneous network is peeled off, focus in network controller, adopt the strategy of network controller centralized control heterogeneous network.In interoperability process between heterogeneous network, the CAMEL-Subscription-Information of the consideration end subscriber that the present invention is comprehensive, the information on load of network, the information such as the quality requirement of business, can effectively manage the load of heterogeneous network and seamless switching and operate.
Under the centralized control of network controller, can by different networks, set up many tunnels between user terminal and network anchor point, transmission parallel on many tunnels, reception, distribution and aggregated data, can be aggregating the transmittability of multilayer wireless network simultaneously.Under the centralized control of network controller, foundation, activation, deexcitation and the tunneling process between dismounting user terminal and network anchor point, can realize the load management between heterogeneous network and soft handover easily, improves user to the satisfaction of network service.
The present embodiment also provides a kind of system of heterogeneous network converged, and this system can realize the method for heterogeneous network converged of the present invention, but the implementation structure of fusion method of the present invention includes but not limited to the system of heterogeneous network converged of the present invention.
As shown in Figure 6, the system of described heterogeneous network converged comprises: network controller 610, network anchor point 620, user terminal 630.Described network anchor point 620 is arranged between heterogeneous networks, for interconnected between heterogeneous network and and external network communication; Described network anchor point is responsible for receiving, forwarding user data.Described network controller 610 and described network anchor point 620 communicate respectively with user terminal 630 and are connected, and are collected the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network.Described user terminal 630 is reportedly passed tunnel by least 1 number and is communicated with described network anchor point 620 and be connected.
Heterogeneous network of the present invention comprises mobile network, WiFi net, WiMax net or/and the Internet, but is not limited to 3 kinds of networks that the present embodiment enumerates.Wherein, different data transmit the data communication channel that tunnel represents heterogeneous networks in heterogeneous network.
Further, as shown in Figure 7, described network controller 610 comprises: the pre-established module 611 in tunnel, tunnel activation module 612, goes tunnel activation module 613, tunnel teardown module 614, release module 615, WAP (wireless access point) administration module 616, network load monitoring module 617.
The pre-established module in described tunnel 611 communicates with described user terminal 630 and is connected, the data transmission tunnel between an objective network and network anchor point is passed through according to the pre-established user terminal in position of the former network of self current attachment at user terminal, namely, behind objective network tunnel, information has been set up to user terminal feedback tunnel.
Described tunnel activation module 612 communicates with described user terminal 630 and is connected, after user terminal initiates to activate tunneled requests to network controller, to user terminal feedback tunnel activation success command.
Described tunnel activation module 613 of going is connected with described user terminal communication, after the tunnel deexcitation request receiving user terminal transmission, to user terminal feedback tunnel deactivation command.
Described tunnel teardown module 614 is connected with described user terminal communication, after the deexcitation receiving user terminal completes signaling, controls described network anchor point and performs tunnel teardown operation.
Described release module 615 is connected with network anchor point 620 respectively with described user terminal 630, for issuing convergence strategy to user terminal and network anchor point.
Described WAP (wireless access point) administration module 616 is connected with network anchor point 620 respectively with described user terminal 630, the new wireless access dot information reported by the tunnel of current activation, upgrades the topological relation context-descriptive of wireless base station and WAP (wireless access point).
Described network load monitoring module 617 is connected with network anchor point 620 respectively with described user terminal 630, collects the information on load of heterogeneous network, the load condition of statistics heterogeneous network, and the activation and the deexcitation that adjust tunnel according to the load condition of heterogeneous network.
The operand of heterogeneous network converged of the present invention is the interoperability process between different type network, is not limited to the mobile wireless network shown in Fig. 6 and hotspot overlay network two type.Aggregators between heterogeneous network is the anchor point connecting heterogeneous network, and fused controlling process is responsible for by unified network controller.Fusion process is for Fig. 6, and between user terminal and network anchor point, set up respectively and transmit tunnel by the data of mobile wireless network and hotspot overlay network, tunnel collects in network anchor point.Network anchor point is responsible for receiving and collecting the user data sent in all tunnels, and the user data after collecting is transmitted to external network.Network anchor point receives the user data that external network sends, and according to the strategy (i.e. convergence strategy) of network controller instruction, different tunnels (namely different networks) forwards.The foundation in tunnel, activation, deexcitation and demolishing process are responsible for by network controller.
The present invention is by building many data communication tunnels between user terminal and network anchor point, by heterogeneous network data in network anchor point and the polymerization of user terminal place, polymerization controlling functions is peeled off from internetwork congruent point, adopt the central controlled strategy of network controller, make the fusion of heterogeneous network have seamless vertical interoperability to experience, and polymerization process can be controlled flexibly according to the state of heterogeneous networks, improve the utilance of network and reduce costs.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a method for heterogeneous network converged, is characterized in that, the method for described heterogeneous network converged comprises:
Arrange be used for interconnected between heterogeneous network and with the network anchor point of external network communication; Described network anchor point is responsible for receiving, forwarding user data;
To arrange and described network anchor point and user terminal communicate the network controller be connected respectively; Described network controller collects the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network; Described user terminal is reportedly passed tunnel by least 1 number and is communicated with described network anchor point and be connected.
2. the method for heterogeneous network converged according to claim 1, is characterized in that, the process that described network controller controls multi-level heterogeneous network converged comprises:
The signing attribute of network controller according to network load situation, user and the quality requirement of business, set up and at least 1 number activated between described user terminal and network anchor point reportedly passs tunnel;
Network controller controls to issue Data dissemination strategy to user terminal and network anchor point, make described user terminal and network anchor point according to described Data dissemination strategy by application data and transmit tunnel from the data that the data that external network receives are placed on different activation and transmit, and the application layer of the data aggregate rear line terminal that tunnel receive will be transmitted from the data activated or external network forwards.
3. the method for heterogeneous network converged according to claim 1, is characterized in that, the process of the interoperability between described network controller centralized control heterogeneous network comprises:
The data transmission tunnel between an objective network and network anchor point is passed through according to the pre-established user terminal in position of the former network of self current attachment at described user terminal, namely, behind objective network tunnel, described network controller has set up information to user terminal feedback tunnel; So that described user terminal initiates when meeting access conditions to set up with objective network link-attached process of eating dishes without rice or wine according to wireless coverage quality criterion; If successful connection, user terminal then initiates to activate tunneled requests to network controller; If connect unsuccessful, user terminal then continues the quality of wireless channel searching for and measure WAP (wireless access point) or wireless base station;
Described network controller feeds back tunnel activation success command to user terminal in the successful situation of tunnel activation;
When needs dismounting user terminal is connected with former internetwork link of eating dishes without rice or wine, described network controller is after the former network tunnel deexcitation request receiving user terminal transmission, former network tunnel deactivation command is fed back, so that former network tunnel deexcitation is completed signaling by user terminal send described network controller to by objective network to user terminal; Network controller controls described network anchor point and performs former network tunnel dismantling operation.
4. the method for heterogeneous network converged according to claim 3, is characterized in that, the process of the interoperability between described network controller centralized control heterogeneous network also comprises:
Described network anchor point converges the data of former network tunnel and the data in objective network tunnel, and the data after converging is distributed on former network tunnel and objective network tunnel respectively;
Described user terminal converges the data of former network tunnel and the data in objective network tunnel, and by the data retransmission after convergence to the application layer of user terminal, and application layer data is distributed respectively on former network tunnel and objective network tunnel; Wherein, described former network tunnel is the data transmission tunnel that user terminal is communicated with network anchor point by former network.
5. the method for heterogeneous network converged according to claim 1, it is characterized in that, the process that described network controller controls the fusion of multi-level heterogeneous network comprises administering and maintaining of heterogeneous wireless access point, described network controller is received and is collected and the new wireless access dot information reported by the tunnel of current activation by user terminal, upgrade the topological relation context-descriptive of wireless base station and WAP (wireless access point), be specially:
Described network controller collects the information on load of described WAP (wireless access point) from gateway belonging to the WAP (wireless access point) heterogeneous network, the load condition of statistics WAP (wireless access point);
Described network controller collects the information on load of wireless base station from heterogeneous network, the load condition of statistics wireless base station;
Described network controller is the positional information in heterogeneous network according to wireless base station and WAP (wireless access point), wireless base station and WAP (wireless access point) are associated, obtain the topological relation of wireless base station and WAP (wireless access point), and load status information is added in topological relation, export the topological relation context-descriptive of wireless base station and WAP (wireless access point);
Described network controller, according to the load condition update cycle pre-set, is updated periodically the topological relation context-descriptive of wireless base station and WAP (wireless access point).
6. the method for heterogeneous network converged according to claim 5, is characterized in that, the process that described network controller controls the fusion of multi-level heterogeneous network also comprises the load management of heterogeneous network, is specially:
Described network controller collects the information on load of heterogeneous network, and arranges basic, normal, high and red line 4 kinds of state grades according to different load conditions;
When the load condition of heterogeneous network is in low or middle state, network controller allows foundation and the activation request in response tunnel, otherwise the foundation in refusal response tunnel and activation request;
When the load condition of heterogeneous network is in high state, network controller to be contracted attribute, QoS of survice demand and tunnel activation situation according to user, and the some tunnels of deexcitation, are reduced to normal level by the load of heterogeneous network;
When the load condition of heterogeneous network is in red line state, network controller removes some tunnels according to user's attribute of contracting, and eliminates the red line load condition of heterogeneous network.
7. a system for heterogeneous network converged, is characterized in that, the system of described heterogeneous network converged comprises:
Network anchor point, is arranged between heterogeneous networks, for interconnected between heterogeneous network and and external network communication; Described network anchor point is responsible for receiving, forwarding user data;
Network controller, to communicate respectively with user terminal with described network anchor point and is connected, and is collected the information of heterogeneous networks by network anchor point and user terminal, the interoperability between centralized control heterogeneous network and control the fusion of multi-level heterogeneous network; Described user terminal is reportedly passed tunnel by least 1 number and is communicated with described network anchor point and be connected.
8. the system of heterogeneous network converged according to claim 7, is characterized in that, described network controller comprises:
The pre-established module in tunnel, be connected with described user terminal communication, the data transmission tunnel between an objective network and network anchor point is passed through according to the pre-established user terminal in position of the former network of self current attachment at user terminal, namely, behind objective network tunnel, information has been set up to user terminal feedback tunnel;
Tunnel activation module, is connected with described user terminal communication, after user terminal initiates to activate tunneled requests to network controller, to user terminal feedback tunnel activation success command;
Go tunnel activation module, be connected with described user terminal communication, after the tunnel deexcitation request receiving user terminal transmission, to user terminal feedback tunnel deactivation command;
Tunnel teardown module, is connected with described user terminal communication, after the deexcitation receiving user terminal completes signaling, controls described network anchor point and performs tunnel teardown operation;
Release module, is connected with network anchor point respectively with described user terminal, for issuing convergence strategy to user terminal and network anchor point;
WAP (wireless access point) administration module, is connected with network anchor point respectively with described user terminal, the new wireless access dot information reported by the tunnel of current activation, upgrades the topological relation context-descriptive of wireless base station and WAP (wireless access point);
Network load monitoring module, is connected with network anchor point respectively with described user terminal, collects the information on load of heterogeneous network, the load condition of statistics heterogeneous network, and the activation and the deexcitation that adjust tunnel according to the load condition of heterogeneous network.
9. the system of heterogeneous network converged according to claim 7, is characterized in that: different data transmit the data communication channel that tunnel represents heterogeneous networks in heterogeneous network.
10. the system of the heterogeneous network converged according to claim 7 to 9 any one, is characterized in that: described heterogeneous network comprises mobile network, WiFi net, WiMax net or/and the Internet.
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