CN104883715A - Mobile switching management system, method thereof, main controller and edge controller - Google Patents

Abstract

The invention discloses a mobile switching management system and method, a main controller and an edge controller. Using the technical solution of a mobile handover management system, method, main controller, and edge controller provided by the embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each The main controller is set on the switch side where the mobile access network is connected to the core network, and the edge controller is based on the obtained status of the terminals associated with each wireless access point and/or covered by each wireless access point in each mobile access network information, analyze the event type of the terminal, and according to the type of event is intra-network or inter-network mobile handover type, the edge controller or main controller controls the terminal's intra-network or inter-network mobile handover respectively, so as to realize the globalization of the terminal and more efficient mobile handover management.

Description

A mobile handover management system, method, main controller, and edge controller

technical field

The invention relates to the field of communication technology, in particular to mobile handover management technology.

Background technique

Mobile handover management is a special case of maintaining session continuity, avoiding session suspension or data loss when changing wireless access points, so that real-time communication services can continue.

Existing mobile handover management is based on session initiation protocol (Session Initiation Protocol, SIP) application layer mobility management. SIP is an application layer control protocol that can establish, modify and terminate multimedia sessions/conferences, such as Internet telephony calls. SIP can also invite participants to established sessions, such as multicast conferences. SIP can add or remove media from established conferences. SIP transparently supports name mapping and redirection services that support personal mobility—users can maintain an externally visible identifier regardless of their location. The basic components of SIP network include five parts: user agent, proxy server, redirection server, registration server and location server.

As shown in Figure 1, Figure 1 is a schematic diagram of the existing session initiation protocol-based application layer mobility management, we can know that the mobile target will register its own information with the home registration server when it does not move to other locations. When the target moves to a new network, it updates the location server through a SIP registration message. The location server stores and returns possible location information to the user. When the communication host wants to visit the mobile target, it will access the location server of the mobile target's home network through its proxy server. At this time, it will be found that the mobile target is not in the local area, and the request will be forwarded to the redirection server. After receiving the request, the redirection server will reply to the sender of the request and tell the sender the new address of the requested user. The proxy server receives user requests and forwards them as required. In this way, the session between the mobile node and the correspondent node after accessing the new network can be re-established. The process of SIP session switching is completed above.

However, this SIP-based application layer mobile management architecture can achieve personal mobility, conversational and service mobility to a certain extent, and provides location management and security mechanisms at the application layer, but SIP only has very limited handover control functions .

Therefore, it is necessary to provide a global and more efficient mobile handover management technology for terminals.

Contents of the invention

Embodiments of the present invention provide a mobile handover management system, device and method to provide global and more effective mobile handover management for terminals.

In the first aspect, a mobile handover management system is provided, including a main controller and an edge controller, wherein the main controller is on the switch side where at least one mobile access network is connected to the core network, and each mobile access The network includes an edge controller and at least one wireless access point, and the mobile access network is at least one type of mobile access network;

The edge controller is configured to analyze the event type of the terminal according to the state information of the terminal associated with the at least one wireless access point in the mobile access network to which it belongs and/or covered by the at least one wireless access point, And when the event type of the terminal is an intra-network mobile handover type, control the terminal to switch the wireless access point, and when the event type of the terminal is an inter-network mobile handover type, send a handover trigger instruction to the main controller;

The main controller is configured to control the terminal according to the state information of the terminal obtained from the edge controller when receiving a handover trigger instruction sent by the edge controller of any mobile access network Handover of the mobile access network is performed.

In a first possible implementation manner, the system further includes: at least one state information collection unit, wherein one wireless access point includes one state information collection unit;

The state information collection unit is configured to collect state information of terminals associated with and/or covered by the wireless access point, and send the state information to the edge controller of the wireless access point.

In a second aspect, a main controller is provided, the main controller is configured to, when receiving a handover trigger indication sent by any edge controller of a mobile access network, according to the information obtained from the edge controller and the associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or state information of a terminal covered by the at least one wireless access point, and control the terminal to perform mobile access network switching, so The handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type;

Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network.

In a first possible implementation manner, the main controller includes:

A state information receiving unit, configured to receive the state information of the terminal sent by any edge controller of the mobile access network;

An event analysis unit, configured to analyze, according to the handover trigger indication and the state information of the terminal, that the event type indicated by the handover trigger is a real-time event type or a non-real-time event type;

An online transaction processing OLTP unit, configured to control the terminal to switch the mobile access network in real time when the event type indicated by the handover trigger is a real-time event type;

An online analysis and processing OLAP unit, configured to regularly analyze changes in the state of the terminal when the event type indicated by the handover trigger is a non-real-time event type, and control the terminal to perform mobile access according to the change in the state of the terminal Network switching.

In a third aspect, an edge controller is provided, where the edge controller is configured to associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or be covered by the at least one wireless access point state information of the terminal, analyze the event type of the terminal, and control the terminal to switch the wireless access point when the event type of the terminal is an intra-network mobile handover type, and control the handover of the wireless access point when the event type of the terminal is an inter-network When the handover type is mobile, sending a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover;

Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network.

In a first possible implementation manner, each of the edge controllers includes a status information requesting unit, a status information receiving unit, and a status information sending unit;

The state information requesting unit is configured to request any wireless access point in the mobile access network to which the edge controller belongs to associate with the wireless access point and/or be accessed by the wireless access point The status information of the terminal covered by the point;

The status information receiving unit is configured to receive the status information of the terminal sent by the wireless access point;

The state information sending unit is configured to send the state information of the terminal to the main controller.

With reference to the first possible implementation of the third aspect, in a second possible implementation, each edge controller further includes:

The first event analysis unit is configured to analyze the event type of the terminal according to the state information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point, The event type of the terminal includes an intra-network mobile handover type and an inter-network mobile handover type;

an instruction sending unit, configured to send a handover trigger instruction to the main controller when the event type of the terminal is an inter-network mobile handover type;

The second event analysis unit is used to further analyze whether the event type of the terminal is a real-time event type or a non-real-time event type according to the state information of the terminal when the event type of the terminal is an intra-network mobile handover type;

An OLTP unit, configured to control the terminal in real time to switch the wireless access point when the event type of the terminal is a real-time event type;

An online analysis and processing OLAP unit, configured to regularly analyze changes in the state of the terminal when the event type of the terminal is a non-real-time event type, and control the terminal to perform wireless access points according to changes in the state of the terminal switch.

In a fourth aspect, a mobile handover management method is provided, including: a main controller is provided on the switch side where at least one type of wireless access network is connected to the core network, and each type of mobile access network includes an edge controller and at least one a wireless access point, the mobile access network is at least one type of mobile access network;

The edge controller analyzes the event type of the terminal according to the status information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point, and when the When the event type of the terminal is an intra-network mobile handover type, control the terminal to switch the wireless access point, and when the event type of the terminal is an inter-network mobile handover type, send a handover trigger instruction to the main controller ;

When the main controller receives a handover trigger indication sent by the edge controller of any mobile access network, the main controller controls the The terminal performs handover of the mobile access network.

In a first possible implementation manner, the method further includes:

The state information of the terminals associated with each wireless access point and/or covered by each wireless access point is collected, and sent to the edge controller to which the wireless access point belongs.

In the fifth aspect, a mobile handover management method is provided, including:

When the main controller receives a handover trigger indication sent by any edge controller of the mobile access network, according to at least one wireless access network obtained from the edge controller and in the mobile access network to which the edge controller belongs, point association and/or state information of the terminal covered by the at least one wireless access point, and control the terminal to perform mobile access network handover, and the handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type;

Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network.

In a first possible implementation manner, when the main controller receives a handover trigger indication sent by any edge controller of the mobile access network, according to the information obtained from the edge controller and the edge controller Associate at least one wireless access point in the mobile access network to which it belongs and/or state information of the terminal covered by the at least one wireless access point, and control the terminal to switch the mobile access network, including:

receiving the status information of the terminal sent by any edge controller of the mobile access network;

According to the handover trigger indication and the state information of the terminal, analyze that the event type of the handover trigger indication is a real-time event type or a non-real-time event type;

When the event type indicated by the handover trigger is a real-time event type, control the terminal to perform mobile access network handover in real time;

When the event type indicated by the handover trigger is a non-real-time event type, regularly analyze the change of the state of the terminal, and control the terminal to switch the mobile access network according to the change of the state of the terminal.

In a sixth aspect, a mobile handover management method is provided, including:

The edge controller analyzes the event type of the terminal according to the state information of the terminal associated with at least one wireless access point in the mobile access network to which the edge controller belongs and/or covered by the at least one wireless access point;

When the event type of the terminal is an intra-network mobile handover type, the edge controller controls the terminal to switch the wireless access point;

When the event type of the terminal is an inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover;

Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network.

In a first possible implementation manner, the edge controller is associated with at least one wireless access point in the mobile access network to which the edge controller belongs and/or is covered by the at least one wireless access point. The state information of the terminal, before analyzing the event type of the terminal, the method further includes:

The edge controller requests any wireless access point in the mobile access network to which the edge controller belongs for a terminal that is associated with the arbitrary wireless access point and/or is covered by the arbitrary wireless access point status information;

The edge controller receives the status information of the terminal sent by the wireless access point;

The edge controller sends the status information of the terminal to the main controller.

With reference to the first possible implementation of the sixth aspect, in a second possible implementation, when the event type of the terminal is an intra-network mobile handover type, the edge controller controls the terminal to perform Switching of wireless access points, including:

When the event type of the terminal is an intra-network mobile handover type, further analyzing that the terminal event type is a real-time event type or a non-real-time event type according to the state information of the terminal;

When the event type of the terminal is a real-time event type, control the terminal to switch the wireless access point in real time;

When the event type of the terminal is a non-real-time event type, periodically analyze the change of the state of the terminal, and control the terminal to switch the wireless access point according to the change of the state of the terminal.

Using the technical solution of a mobile handover management system, method, main controller, and edge controller provided by the embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each The main controller is set on the switch side where the mobile access network is connected to the core network, and the edge controller is based on the obtained status of the terminals associated with each wireless access point and/or covered by each wireless access point in each mobile access network information, analyze the event type of the terminal, and according to the type of event type is intra-network or inter-network mobile handover, the edge controller or main controller controls the terminal's intra-network or inter-network mobile handover, so as to realize the globalization of the terminal and more efficient mobile handover management.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of an existing application layer mobility management based on a session initiation protocol;

Figure 2 is a schematic diagram of a self-defined SDN-based mobility management network architecture;

FIG. 3 is a schematic structural diagram of a mobile handover management system provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another mobile handover management system provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of an example network scenario;

FIG. 6 is a schematic structural diagram of a main controller provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an edge controller provided by an embodiment of the present invention;

FIG. 8 is a flowchart of a mobile handover management method provided by an embodiment of the present invention;

FIG. 9 is a flowchart of another mobile handover management provided by an embodiment of the present invention;

FIG. 10 is a flowchart of another mobile handover management method provided by an embodiment of the present invention;

FIG. 11 is a flowchart of another mobile handover management method provided by an embodiment of the present invention;

Fig. 12 is a flowchart of another mobile handover management method provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The present invention applies the monitoring function of the OpenFlow protocol in the software-defined network (Software-Defined Networking, SDN) to the whole network to the mobile handover management framework, and the wireless access network involved in the present invention may be a heterogeneous network. The core idea of the SDN-based heterogeneous network architecture is to use layered distributed controllers and use the OpenFlow protocol to manage/control heterogeneous networks, and support good switching management at the application layer (due to the characteristics of Open Flow software-defined networks, The Open Flow protocol for managing/controlling heterogeneous networks can be customized by ourselves). According to the location and function of the controller, the controller is divided into the main controller and the edge controller, and uses the custom OpenFlow protocol to collect relevant data of the mobile terminal.

Please refer to Figure 2, which is a schematic diagram of a self-defined SDN-based mobility management network architecture. The functions of the entire network are mainly divided into four levels:

The bottom layer is the wireless access network (Wireless Access Network), and the status information collection module is located in the access point (Access Point, AP) under the wireless access network, and is responsible for collecting information. The wireless access network is mainly responsible for the underlying network connection and data transmission.

The second layer is the edge network (Edge Network). The function of this layer is mainly responsible by the edge controller. The edge controller is on the switch side of the local area network below itself. Report the received data and complete the corresponding event processing.

The third layer is the core network (Core Network). The functions of this layer are mainly in charge of the main controller. The main controller is on the side of the OpenFlow switch connecting the entire subnet to the core network, coordinates and controls the whole network, and receives the information reported by the edge controller. Respond to messages or incoming events.

The fourth layer is the network application (Network Application), which mainly provides functions such as network topology discovery, flow view, AP statistics, interface display, network configuration and mobile management: topology discovery, based on the principle of OpenFlow topology discovery, in the global The manager side can collect the topology nodes under the controlled network domain; the flow view can clearly draw the end-to-end data flow diagram in the network; AP statistics, mainly for the traffic statistics of the AP side, including sent/received , sending failures, transmission errors, etc.; interface display, which can provide an intuitive network interface display function, allowing users to understand the overall network situation through the interface; mobile management: in this network, the global manager can pass The operation status in the network monitors the information of the whole network.

In order to realize wireless mobility management in the SDN-based network, a new mobility management module is added in the application layer, which also includes two modules of access point statistics (AP Statistics) and terminal statistics (StationStatistics) for collection Relevant statistics used by terminals and access points for handover.

In the present invention, edge controllers are respectively set in one or more types of mobile access networks, and main controllers are set on the switch side where each mobile access network is connected to the core network. The status information of terminals associated with and/or covered by each wireless access point in the network, analyze the event type of the terminal, and according to the type of event is intra-network or inter-network mobile handover type, respectively by the edge The controller or main controller controls the intra-network or inter-network mobility handover of the terminal, so as to realize global and more efficient mobility handover management for the terminal.

Introduce the specific implementation of mobile handover management through specific embodiments below:

Please refer to FIG. 3 , which is a schematic structural diagram of a mobile handover management system provided by an embodiment of the present invention. The mobile handover management system 1000 includes a main controller 11 and multiple edge controllers 12 . Wherein, the main controller is at the switch side where at least one mobile access network is connected to the core network, and each mobile access network includes an edge controller and one or more wireless access points, and the mobile access network is of various types The mobile access network constitutes a heterogeneous network.

The edge controller 12 is configured to analyze the event type of the terminal according to the status information of the terminal associated with the at least one wireless access point in the mobile access network to which it belongs and/or covered by the at least one wireless access point, and When the event type of the terminal is an intra-network mobile handover type, control the terminal to switch the wireless access point, and when the event type of the terminal is an inter-network mobile handover type, send a handover trigger indication to the master controller.

The main controller 11 is configured to, when receiving a handover trigger instruction sent by the edge controller of any mobile access network, control the terminal to perform Handover of mobile access network.

As shown in the schematic diagram of the network scenario shown in Figure 5, smart phones can access the Internet through the LTE network, and smart phones and tablet computers can also access the Internet through wireless local area networks such as Wi-Fi. The wireless access network can also be Code Division Multiple Access (Code Division Multiple Access) Division Multiple Access (CDMA) network or Worldwide Interoperability for Microwave Access (Wi-Max) network and other types of heterogeneous networks. Each radio access network has an edge controller, such as the LTE edge controller and the wireless LAN edge controller shown in Figure 5, and there is a main controller in the switch that connects the entire radio access network to the core network On the side, coordinate various heterogeneous networks. Each wireless access network has multiple access points, such as the access points in the Wi-Fi network and the cellular network base stations in LTE as shown in Figure 5, and each access point is associated with or is used by the Multiple terminals covered by an access point, such as smart phones, tablet computers, etc. Among them, the terminal associated with the AP means that the terminal is provided with communication services by the AP, and the terminal within the coverage of the AP means that the signal of the AP can reach this terminal.

The edge controller in each wireless access network obtains the status information of terminals under multiple access points in the wireless access network, and analyzes the event type of the terminal according to the status information of the terminal. If the event type of the terminal is in-network Mobile switching type, the edge controller can handle it by itself, and the edge controller controls the terminal to switch the wireless access point, that is, to switch from one wireless access point to another wireless access point in the wireless access network to which the terminal belongs point; if the event type of the terminal is the inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, and the indication is used to instruct the main controller to handle the inter-network mobile handover event of the terminal, and the main controller Receive the terminal state information sent by each edge controller, so that the main controller can grasp the state information of the terminal in the whole network, and control the terminal to switch the wireless access network according to the state information of the terminal. The terminal events mentioned here include handovers caused by received signal strength indications (Received Signal Strength Indication, RSSI), handovers caused by quality of service guarantees, handovers caused by certain policies such as charging, and handovers caused by service flows Etc. For example, corresponding to the handover caused by RSSI measurement, the state information of the terminal obtained by the edge controller is the RSSI value of the AP associated with the terminal or covering the terminal.

Taking the handover caused by RSSI measurement as an example, the terminal moves in the network scene shown in Figure 5. When the RSSI value of the terminal obtained by the edge controller is lower than the set threshold RSSI-TH, the edge controller according to the acquired The RSSI value of all APs associated with the terminal and/or covering the terminal in the wireless access network, select an AP with the highest RSSI value as the target AP for the terminal, wherein the RSSI value is used to identify The minimum threshold for the terminal to normally associate with the AP.

When the terminal continues to move, and moves to the overlapping area of Wi-Fi and LTE network coverage, and the Wi-Fi network AP coverage, its RSSI value is lower than RSSI-TH, while the RSSI value of the base station in the LTE network is high Based on RSSI-TH, inter-network handover occurs, and the main controller handles such inter-network handover events, that is, the control terminal switches from an AP under the Wi-Fi network to an AP under the LTE network.

It can be seen that, according to a mobile handover management system provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each mobile access network is connected to the core network switch side The main controller is set, and the edge controller analyzes the event type of the terminal according to the obtained state information of the terminal associated with each wireless access point and/or covered by each wireless access point in each mobile access network, and according to the event The type is intra-network or inter-network mobile handover, and the edge controller or main controller controls the terminal's intra-network or inter-network mobile handover, so as to realize global and more efficient mobile handover management for terminals.

Please refer to FIG. 4 , which is a schematic structural diagram of another mobile handover management system provided by an embodiment of the present invention. Different from the embodiment shown in FIG. 3 , each edge controller 22 in the mobile handover management system 2000 further includes a plurality of status information collection units 23 , and one wireless access point includes a status information collection unit 23 . The functions of the main controller 21 and the edge controller 22 are respectively the same as those of the main controller 11 and the edge controller 12 in the foregoing embodiments, and will not be repeated here.

The state information collection unit 23 is configured to collect state information of terminals associated with and/or covered by the wireless access point, and send the state information to the edge controller of the wireless access point.

In this embodiment, a state information collecting unit 23 is set in each wireless access point to collect state information of the terminal. Taking handover based on RSSI measurement as an example, the Wi-Fi edge controller and the LTE edge controller send the "Get_request(Associate_STA_RSSI)" status information request command to the status information collection unit 23 in their own network within a specified time interval, requesting to obtain the wireless Status information of each terminal (Station, STA) in the access point.

The state information collection unit 23 receives the state request message from the edge controller of the wireless access network to which it belongs, and replies to the state information request command through the "Get_request(Associate_STA_RSSI)" command carrying its own state parameters.

When the edge controller receives the status command request parameters, it saves the parameters in the database. At the same time, the data is sent to the main controller on the network through the "trap(Associate_STA_RSSI)" status command.

After the master controller receives status commands from other subnet controllers in the network, it parses the packet data and stores it in its database.

The information carried in get-response and get-next-response are the following Table 1 and Table 2 respectively:

Table 1: Terminals associated with an AP and their signal strength

APID type N STAID RSSI STAID RSSI  …  … 0 (associate)

Table 2: Terminals under the coverage of this AP but not associated with it and their signal strength

APID type N STAID RSSI STAID RSSI  …  … 1(cover)

Note: The Type field indicates the type of the terminal, 0 indicates the terminal associated with the AP, 1 indicates the terminal covered by the AP; STAID indicates the terminal ID.

It can be seen that, according to a mobile handover management system provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each mobile access network is connected to the core network switch side The main controller is set, and the edge controller analyzes the event type of the terminal according to the obtained state information of the terminal associated with each wireless access point and/or covered by each wireless access point in each mobile access network, and according to the event The type is intra-network or inter-network mobile handover, and the edge controller or main controller controls the terminal's intra-network or inter-network mobile handover, so as to realize global and more efficient mobile handover management for terminals.

The embodiment of the present invention also provides a master controller, the master controller is configured to, when receiving a handover trigger indication sent by any edge controller of a mobile access network, according to the information obtained from the edge controller and the Associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or state information of the terminal covered by the at least one wireless access point, and control the terminal to switch the mobile access network, the The handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type.

Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network.

The functions of the main controller have been introduced in the foregoing system embodiments, and will not be repeated here.

The following details the internal structure of the main controller:

Please refer to FIG. 6 , which is a schematic structural diagram of a main controller provided by an embodiment of the present invention. The main controller 31 includes a state information receiving unit 311 , an event analysis unit 312 , an OLTP unit 313 and an OLAP unit 314 .

The state information receiving unit 311 is configured to receive the state information of the terminal sent by any edge controller of the mobile access network.

The status information receiving unit 311 receives the terminal status information sent by any edge controller of the mobile access network, so that the status information of all terminals in the entire heterogeneous network can be obtained in time, and the controller can also control the status information receiving unit 311 to receive The status information of the received terminal is stored in the database. For terminal events, such as switching events based on billing policies, since the main controller has mastered the status information of all terminals in the entire heterogeneous network, the main controller controls the terminal to switch between networks, which is conducive to using the cheapest fee rate to provide communication services to the terminal.

The event analysis unit 312 is configured to analyze whether the event type of the handover trigger indication is a real-time event type or a non-real-time event type according to the handover trigger indication sent by the edge controller and the state information of the terminal.

The online transaction processing OLTP unit 313 is configured to control the terminal in real time to perform mobile access network handover when the event type indicated by the handover trigger is a real-time event type.

OLAP unit 314, configured to regularly analyze changes in the state of the terminal when the event type indicated by the handover trigger is a non-real-time event type, and control the terminal to perform mobile access according to the change in the state of the terminal. Network switching.

The event parsing unit 312 parses the real-time message when it confirms that there is a handover trigger indication message transmitted, and if it belongs to a real-time event that needs to be processed, then hand it over to the OLTP unit 313 for processing. When the event belongs to the non-real-time event type, the event analysis unit 312 will hand over the event to the OLAP unit 314 for processing, and the OLAP unit 314 will analyze the database, because the change of the network status belongs to the process of continuous change, by analyzing the historical data It can effectively predict the change of the network state, and when the change of the network state is analyzed, the terminal is controlled to switch the mobile access network.

It can be seen that, according to a main controller provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and set at the switch side where each mobile access network is connected to the core network The main controller, when receiving the handover trigger indication message from the edge controller, the handover trigger indication message indicates that the event type of the terminal is the inter-network mobile handover type, and the main controller controls the terminal to perform inter-network mobile handover, so as to realize the inter-network mobile handover. The terminal performs global and more efficient mobile handover management.

An embodiment of the present invention also provides an edge controller, which is configured to associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or be covered by the at least one wireless access point. state information of the terminal, analyze the event type of the terminal, and control the terminal to switch the wireless access point when the event type of the terminal is an intra-network mobile handover type, and control the handover of the wireless access point when the event type of the terminal is an inter-network When the handover type is mobile, sending a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover;

Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network.

The functions of the edge controller have been introduced in the foregoing system embodiments, and will not be repeated here.

The following details the internal structure of the edge controller:

Please refer to FIG. 7 , which is a schematic structural diagram of an edge controller provided by an embodiment of the present invention. The edge controller 32 includes: a status information request unit 321, a status information receiving unit 322, a status information sending unit 323, a first event analysis unit 324, an instruction sending unit 325, a second event analysis unit 326, and an OLTP unit 327 and OLAP unit 328 for online analytical processing.

A state information request unit 321, configured to request any wireless access point in the mobile access network to which the edge controller belongs to be associated with the wireless access point and/or to be associated with the wireless access point by the wireless access point Status information for covered endpoints.

The state information receiving unit 322 is configured to receive the state information of the terminal sent by the wireless access point.

In the previous embodiment, it is introduced that each wireless access point is provided with a state information collection unit to collect the state information of the terminal. In this embodiment, the edge controller includes a state information request unit 321 and a state information receiving unit 322. The state information The requesting unit 321 requests the status information of the terminal associated with the wireless access point and/or covered by the wireless access point from the status information collecting unit, and the status information receiving unit 322 receives the status information of the terminal sent by the status information collecting unit. Taking handover based on RSSI measurement as an example, the status information request unit of the Wi-Fi edge controller and LTE edge controller sends the "Get_request(Associate_STA_RSSI)" status information request command to the status information collection unit in its own network within the specified time interval , it is required to obtain the status information of each terminal (Station, STA) in the wireless access point.

The state information collection unit receives the state request message from the edge controller of the wireless access network to which it belongs, and returns the state information request command with its own state parameters through the "Get_request(Associate_STA_RSSI)" command.

When the status information receiving unit of the edge controller receives the status command request parameter, it saves the parameter in the database.

The state information sending unit 323 is configured to send the state information of the terminal to the main controller.

The state information sending units 323 of all edge controllers send the acquired state information of the terminals to the main controller, so that the main controller can grasp the state information of the whole network. After the master controller receives status commands from other subnet controllers in the network, it parses the packet data and stores it in its database.

Taking the handover based on RSSI measurement as an example, the status information sending unit 323 simultaneously sends data to the main controller on the network through the “trap (Associate_STA_RSSI)” status command.

The first event analysis unit 324 is configured to analyze the event type of the terminal according to the state information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point , the event type of the terminal includes an intra-network mobile handover type and an inter-network mobile handover type.

The instruction sending unit 325 is configured to send a handover trigger instruction to the main controller when the event type of the terminal is an inter-network mobile handover type.

The edge controller in each radio access network obtains the state information of the terminal under multiple access points in the radio access network, and the first event analysis unit 324 analyzes the event type of the terminal according to the state information of the terminal, if the terminal If the type of event is mobile handover in the network, the edge controller can handle it by itself, and the edge controller controls the terminal to switch the wireless access point, that is, switch from a wireless access point in the wireless access network to which the terminal belongs to another wireless access point; if the event type of the terminal is an inter-network mobile handover type, the instruction sending unit 325 of the edge controller sends a handover trigger instruction to the main controller, and the instruction is used to instruct the main controller to process the For terminal inter-network mobile handover events, the main controller receives the terminal status information sent by each edge controller, so that the main controller can grasp the status information of the terminals in the entire network, and control the terminal to perform wireless access according to the status information of the terminals Network switching. The terminal events mentioned here include handovers caused by received signal strength indications (Received Signal Strength Indication, RSSI), handovers caused by quality of service guarantees, handovers caused by certain policies such as charging, and handovers caused by service flows Etc. For example, corresponding to the handover caused by RSSI measurement, the state information of the terminal obtained by the edge controller is the RSSI value of the AP associated with the terminal or covering the terminal.

Taking the handover caused by RSSI measurement as an example, the terminal moves in the network scene shown in Figure 5. When the RSSI value of the terminal obtained by the edge controller is lower than the set threshold RSSI-TH, the edge controller according to the acquired The RSSI value of all APs associated with the terminal and/or covering the terminal in the wireless access network, select an AP with the highest RSSI value as the target AP for the terminal, wherein the RSSI value is used to identify The minimum threshold for the terminal to normally associate with the AP.

When the terminal continues to move, and moves to the overlapping area of Wi-Fi and LTE network coverage, and the Wi-Fi network AP coverage, its RSSI value is lower than RSSI-TH, while the RSSI value of the base station in the LTE network is high Based on RSSI-TH, inter-network handover occurs, and the main controller handles such inter-network handover events, that is, the control terminal switches from an AP under the Wi-Fi network to an AP under the LTE network.

The second event analysis unit 326 is configured to further analyze whether the event type of the terminal is a real-time event type or a non-real-time event type according to the state information of the terminal when the event type of the terminal is an intra-network mobile handover type.

The OLTP unit 327 is configured to control the terminal to switch the wireless access point in real time when the event type of the terminal is a real-time event type.

OLAP unit 328, configured to regularly analyze changes in the state of the terminal when the event type of the terminal is a non-real-time event type, and control the terminal to perform a wireless access point according to the change in the state of the terminal. switch.

When the first event parsing unit 324 confirms that the event type of the terminal is the mobile handover type in the network, the second event parsing unit 326 further analyzes the terminal event type as a real-time event type or a non-real-time event type according to the state information of the terminal. The processed real-time events are handed over to the OLTP unit 327 for processing. When the event belongs to the non-real-time event type, the second event analysis unit 326 will hand over the event to the OLAP unit 328 for processing, and the OLAP unit 328 will analyze the database, because the change of the network status belongs to the process of continuous change, by analyzing the historical data The analysis of the network can effectively predict the change of the network state, and when the change of the network state is analyzed, the control terminal performs the handover of the mobile access network.

For example, when the terminal moves quickly, the signal RSSI changes quickly, and the handover response should also be fast, and such events are handed over to the OLTP unit 327 for processing. On the other hand, some network side makes switching decisions after long-term status statistics and analysis. For example, the edge controller finds that users under a certain AP are watching a lot of videos, and the system bandwidth is insufficient, resulting in a drop in QOS indicators. The edge controller decides to switch some users Network switching requires a slowly changing data statistics and analysis process, and needs to be combined with historical data, so we hand it over to the OLAP unit 328 for processing.

According to an edge controller provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and main control devices are set on the switch side where each mobile access network is connected to the core network. The edge controller analyzes the event type of the terminal according to the obtained state information of the terminal associated with each wireless access point and/or covered by each wireless access point in each mobile access network, and according to the event type Intra-network or inter-network mobility handover type, the edge controller or the main controller controls the intra-network or inter-network mobility handover of the terminal, so as to realize the overall and more efficient mobile handover management of the terminal.

Please refer to FIG. 8 , which is a flowchart of a mobile handover management method provided by an embodiment of the present invention. The method includes the following steps:

Step S101, the edge controller analyzes the event type of the terminal according to the status information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point, and when When the event type of the terminal is intra-network mobile handover, control the terminal to switch the wireless access point; when the event type of the terminal is inter-network mobile handover, send a handover trigger instruction to the main controller.

Step S102, when the main controller receives a handover trigger instruction sent by the edge controller of any mobile access network, the main controller, according to the state information of the terminal obtained from the edge controller, , controlling the terminal to switch the mobile access network.

Wherein, at least one wireless access network connected to the core network has a main controller on the switch side, each mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least one types of mobile access networks.

The edge controller in each wireless access network obtains the status information of terminals under multiple access points in the wireless access network, and analyzes the event type of the terminal according to the status information of the terminal. If the event type of the terminal is in-network Mobile switching type, the edge controller can handle it by itself, and the edge controller controls the terminal to switch the wireless access point, that is, to switch from one wireless access point to another wireless access point in the wireless access network to which the terminal belongs point; if the event type of the terminal is the inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, and the indication is used to instruct the main controller to handle the inter-network mobile handover event of the terminal, and the main controller By receiving the terminal status information sent by each edge controller, the main controller can grasp the terminal status information of the whole network, and control the terminal to switch the wireless access network according to the terminal status information. The terminal events mentioned here include handovers caused by RSSI, handovers based on service quality guarantees, handovers caused by certain policies such as charging, and handovers caused by service flows. For example, corresponding to handovers caused by RSSI measurement, The state information of the terminal acquired by the edge controller is the RSSI value of the AP associated with the terminal or covering the terminal.

Taking the handover caused by RSSI measurement as an example, the terminal moves in the network scene shown in Figure 5. When the RSSI value of the terminal obtained by the edge controller is lower than the set threshold RSSI-TH, the edge controller according to the acquired The RSSI value of all APs associated with the terminal and/or covering the terminal in the wireless access network, select an AP with the highest RSSI value as the target AP for the terminal, wherein the RSSI value is used to identify The minimum threshold for the terminal to normally associate with the AP.

When the terminal continues to move, and moves to the overlapping area of Wi-Fi and LTE network coverage, and the Wi-Fi network AP coverage, its RSSI value is lower than RSSI-TH, while the RSSI value of the base station in the LTE network is high Based on RSSI-TH, inter-network handover occurs, and the main controller handles such inter-network handover events, that is, the control terminal switches from an AP under the Wi-Fi network to an AP under the LTE network.

It can be seen that according to a mobile handover management method provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each mobile access network is connected to the core network switch side The main controller is set, and the edge controller analyzes the event type of the terminal according to the obtained state information of the terminal associated with each wireless access point and/or covered by each wireless access point in each mobile access network, and according to the event The type is intra-network or inter-network mobile handover, and the edge controller or main controller controls the terminal's intra-network or inter-network mobile handover, so as to realize global and more efficient mobile handover management for terminals.

Please refer to FIG. 9 , which is a flow chart of another mobile handover management provided by an embodiment of the present invention. Different from the embodiment shown in FIG. 7, this embodiment further includes step S201.

Step S201, collecting status information of terminals associated with each wireless access point and/or covered by each wireless access point, and sending it to the edge controller to which the wireless access point belongs.

Step S202 and step S203 are respectively the same as step S101 and step S102 in the foregoing embodiment, and will not be repeated here.

The mobile handover management system separately collects the terminal state information of each wireless access point in each wireless access network, and sends the terminal state information to the edge controller to which the wireless access point belongs. The terminal can be connected to the AP The associated terminal may also be a terminal covered by the AP.

The embodiment of the present invention provides another mobile handover management method, the method includes:

When the main controller receives a handover trigger indication sent by any edge controller of the mobile access network, according to at least one wireless access network obtained from the edge controller and in the mobile access network to which the edge controller belongs, point association and/or state information of the terminal covered by the at least one wireless access point, and control the terminal to perform mobile access network handover, and the handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type;

Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network.

Please refer to FIG. 10 , which is a flowchart of another mobile handover management method provided by an embodiment of the present invention. The method includes:

Step S301, receiving the status information of the terminal sent by any edge controller of the mobile access network.

The main controller receives the terminal status information sent by any edge controller of the mobile access network, so that it can obtain the status information of all terminals in the entire heterogeneous network in time, and can also control the storage of the received terminal status information into the database . For terminal events, such as switching events based on billing policies, since the main controller has mastered the status information of all terminals in the entire heterogeneous network, the main controller controls the terminal to switch between networks, which is conducive to using the cheapest fee rate to provide communication services to the terminal.

Step S302, according to the handover trigger indication and the state information of the terminal, analyze whether the event type of the handover trigger indication is a real-time event type or a non-real-time event type.

Step S303, when the event type indicated by the handover trigger is a real-time event type, control the terminal to perform mobile access network handover in real time.

Step S304, when the event type indicated by the handover trigger is a non-real-time event type, periodically analyze the change of the state of the terminal, and control the terminal to switch the mobile access network according to the change of the state of the terminal.

The main controller parses the real-time message when it confirms that there is a handover trigger indication message transmitted, and if it belongs to a real-time event that needs to be processed, it controls the terminal in real time to switch the mobile access network. When the event belongs to the non-real-time event type, the main controller will analyze the database, because the change of the network state is a process of continuous change, the change of the network state can be effectively predicted through the analysis of historical data, when the network state is analyzed When changing, the control terminal performs the handover of the mobile access network.

It can be seen that according to a mobile handover management method provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and each mobile access network is connected to the core network switch side Set the main controller, when receiving the handover trigger instruction message from the edge controller, the handover trigger instruction message indicates that the event type of the terminal is the inter-network mobile handover type, and the main controller controls the terminal to perform inter-network mobile handover, thereby realizing Perform global and more efficient mobile handover management on terminals.

Please refer to FIG. 11 , which is a flowchart of another mobile handover management method provided by an embodiment of the present invention. The method includes:

Step S401, the edge controller analyzes the event of the terminal according to the state information of the terminal associated with at least one wireless access point in the mobile access network to which the edge controller belongs and/or covered by the at least one wireless access point type.

Step S402, when the event type of the terminal is an intra-network mobile handover type, the edge controller controls the terminal to perform wireless access point handover.

Step S403, when the event type of the terminal is an inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover .

Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network.

Please refer to FIG. 12 , which is a flowchart of another mobile handover management method provided by an embodiment of the present invention. The method includes:

Step S501, the edge controller requests from any wireless access point in the mobile access network to which the edge controller belongs is associated with the arbitrary wireless access point and/or covered by the arbitrary wireless access point Terminal status information.

Step S502, the edge controller receives the status information of the terminal sent by the wireless access point.

In the previous embodiment, it is introduced that each wireless access point in the mobile access network collects the status information of the terminal. In this embodiment, the edge controller requests the wireless access point to associate with the wireless access point and/or The state information of the terminal covered by the access point, and the edge controller receives the state information of the terminal sent by the wireless access point. Taking handover based on RSSI measurement as an example, the Wi-Fi edge controller and LTE edge controller send the "Get_request(Associate_STA_RSSI)" status information request command to the wireless access point in their own network within the specified time interval, requesting to obtain the wireless access point. Status information of each terminal (Station, STA) in the entry point.

The wireless access point receives the status request message from the edge controller of the wireless access network to which it belongs, and replies to the status information request command through the "Get_request(Associate_STA_RSSI)" command carrying its own status parameters.

When the edge controller receives the status command request parameters, it saves the parameters in the database.

After the master controller receives status commands from other subnet controllers in the network, it parses the packet data and stores it in its database.

Step S503, the edge controller sends the status information of the terminal to the main controller.

All the edge controllers send the acquired status information of the terminals to the main controller, so that the main controller can grasp the status information of the whole network. After the master controller receives status commands from other subnet controllers in the network, it parses the packet data and stores it in its database.

Taking handover based on RSSI measurement as an example, the edge controller simultaneously sends data to the main controller on the network through the "trap (Associate_STA_RSSI)" status command.

Step S504, the edge controller analyzes the terminal according to the status information of the terminal associated with at least one wireless access point in the mobile access network to which the edge controller belongs and/or covered by the at least one wireless access point event type.

Step S505, when the event type of the terminal is an intra-network mobile handover type, according to the state information of the terminal, further analyze whether the event type of the terminal is a real-time event type or a non-real-time event type.

Step S506, when the event type of the terminal is a real-time event type, control the terminal to switch the wireless access point in real time.

Step S507, when the event type of the terminal is a non-real-time event type, regularly analyze the change of the state of the terminal, and control the terminal to switch the wireless access point according to the change of the state of the terminal.

Step S508, when the event type of the terminal is an inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover .

The edge controller in each wireless access network obtains the status information of terminals under multiple access points in the wireless access network, and the edge controller analyzes the event type of the terminal according to the status information of the terminal. If the event type of the terminal If it is an intra-network mobile switching type, the edge controller can handle it by itself. The edge controller controls the terminal to switch the wireless access point, that is, switches from one wireless access point to another in the wireless access network to which the terminal belongs. wireless access point; if the event type of the terminal is an inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, and the indication is used to instruct the main controller to process the inter-network mobile handover event of the terminal, The main controller receives the terminal status information sent by each edge controller, so that the main controller can grasp the status information of the terminals in the whole network, and control the terminal to switch the radio access network according to the status information of the terminals. The terminal events mentioned here include handovers caused by received signal strength indications (Received Signal Strength Indication, RSSI), handovers caused by quality of service guarantees, handovers caused by certain policies such as charging, and handovers caused by service flows Etc. For example, corresponding to the handover caused by RSSI measurement, the state information of the terminal obtained by the edge controller is the RSSI value of the AP associated with the terminal or covering the terminal.

Taking the handover caused by RSSI measurement as an example, the terminal moves in the network scene shown in Figure 5. When the RSSI value of the terminal obtained by the edge controller is lower than the set threshold RSSI-TH, the edge controller according to the acquired The RSSI value of all APs associated with the terminal and/or covering the terminal in the wireless access network, select an AP with the highest RSSI value as the target AP for the terminal, wherein the RSSI value is used to identify The minimum threshold for the terminal to normally associate with the AP.

When the terminal continues to move, and moves to the overlapping area of Wi-Fi and LTE network coverage, and the Wi-Fi network AP coverage, its RSSI value is lower than RSSI-TH, while the RSSI value of the base station in the LTE network is high Based on RSSI-TH, inter-network handover occurs, and the main controller handles such inter-network handover events, that is, the control terminal switches from an AP under the Wi-Fi network to an AP under the LTE network.

When the edge controller confirms that the event type of the terminal is the intra-network mobile handover type, the edge controller further analyzes the terminal event type as a real-time event type or a non-real-time event type according to the status information of the terminal. If it belongs to a real-time event that needs to be processed, Then the terminal is controlled in real time to switch the wireless access point. When the event belongs to the non-real-time event type, the edge controller will analyze the database regularly, because the change of the network status is a process of continuous change, and the change of the network status can be effectively predicted by analyzing the historical data. When the state changes, the control terminal performs switching of the mobile access network.

For example, when the terminal moves rapidly, the signal RSSI changes quickly, and the handover response should also be fast, and such events need to be processed in real time. On the other hand, some network side makes switching decisions after long-term status statistics and analysis. For example, the edge controller finds that users under a certain AP are watching a lot of videos, and the system bandwidth is insufficient, resulting in a drop in QOS indicators. The edge controller decides to switch some users Network switching, which requires a slow-changing data statistics and analysis process, and needs to be combined with historical data, so this kind of event is a non-real-time event.

According to a mobile handover management method provided by an embodiment of the present invention, edge controllers are respectively set in one or more types of mobile access networks, and master The controller, the edge controller analyzes the event type of the terminal according to the obtained status information of the terminals associated with each wireless access point and/or covered by each wireless access point in each mobile access network, and according to the event type is Intra-network or inter-network mobile handover type, the edge controller or the main controller controls the intra-network or inter-network mobile handover of the terminal, so as to realize the overall and more efficient mobile handover management of the terminal.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because according to the present invention, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Take this as an example but not limited to: computer-readable media may include Random Access Memory (Random Access Memory, RAM), Read-Only Memory (Read-Only Memory, ROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory) -Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage medium or other magnetic storage device, or can be used to carry or store expectations in the form of instructions or data structures program code and any other medium that can be accessed by a computer. also. Any connection can suitably be a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair wire, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then Coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixation of the respective media. As used herein, disk and disc include compact disc (CD), laser disc, compact disc, digital versatile disc (DVD), floppy disc, and Blu-ray disc, where a disc usually reproduces data magnetically, and a disc Lasers are used to optically reproduce the data. Combinations of the above should also be included within the scope of computer-readable media.

In a word, the above descriptions are only preferred embodiments of the technical solutions of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. A mobile handover management system, characterized in that it includes a main controller and an edge controller, wherein the main controller is at the switch side where at least one mobile access network is connected to the core network, each mobile access The network includes an edge controller and at least one wireless access point, and the mobile access network is at least one type of mobile access network; The edge controller is configured to analyze the event type of the terminal according to the state information of the terminal associated with the at least one wireless access point in the mobile access network to which it belongs and/or covered by the at least one wireless access point, And when the event type of the terminal is an intra-network mobile handover type, control the terminal to switch the wireless access point, and when the event type of the terminal is an inter-network mobile handover type, send a handover trigger instruction to the main controller; The main controller is configured to control the terminal according to the state information of the terminal obtained from the edge controller when receiving a handover trigger instruction sent by the edge controller of any mobile access network Handover of the mobile access network is performed. 2. The system according to claim 1, further comprising: at least one status information collection unit, wherein one said wireless access point includes one said status information collection unit; The state information collection unit is configured to collect state information of terminals associated with and/or covered by the wireless access point, and send the state information to the edge controller of the wireless access point. 3. A main controller, wherein the main controller is configured to, when receiving a handover trigger instruction sent by any edge controller of a mobile access network, according to the information obtained from the edge controller and the Associate at least one wireless access point in the mobile access network to which the edge controller belongs and/or state information of a terminal covered by the at least one wireless access point, and control the terminal to switch the mobile access network, so The handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type; Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network. 4. The main controller according to claim 3, wherein the main controller comprises: A state information receiving unit, configured to receive the state information of the terminal sent by any edge controller of the mobile access network; An event analysis unit, configured to analyze, according to the handover trigger indication and the state information of the terminal, that the event type indicated by the handover trigger is a real-time event type or a non-real-time event type; An online transaction processing OLTP unit, configured to control the terminal to switch the mobile access network in real time when the event type indicated by the handover trigger is a real-time event type; An online analysis and processing OLAP unit, configured to regularly analyze changes in the state of the terminal when the event type indicated by the handover trigger is a non-real-time event type, and control the terminal to perform mobile access according to the change in the state of the terminal Network switching. 5. An edge controller, wherein the edge controller is configured to associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or be covered by the at least one wireless access point state information of the terminal, analyze the event type of the terminal, and control the terminal to switch the wireless access point when the event type of the terminal is an intra-network mobile handover type, and control the handover of the wireless access point when the event type of the terminal is an inter-network When the handover type is mobile, sending a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover; Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network. 6. The edge controller according to claim 5, wherein each edge controller includes a state information request unit, a state information receiving unit, and a state information sending unit; The state information requesting unit is configured to request any wireless access point in the mobile access network to which the edge controller belongs to associate with the wireless access point and/or be accessed by the wireless access point The status information of the terminal covered by the point; The status information receiving unit is configured to receive the status information of the terminal sent by the wireless access point; The state information sending unit is configured to send the state information of the terminal to the main controller. 7. The edge controller according to claim 6, wherein each edge controller further comprises: The first event analysis unit is configured to analyze the event type of the terminal according to the state information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point, The event type of the terminal includes an intra-network mobile handover type and an inter-network mobile handover type; an instruction sending unit, configured to send a handover trigger instruction to the main controller when the event type of the terminal is an inter-network mobile handover type; The second event analysis unit is used to further analyze whether the event type of the terminal is a real-time event type or a non-real-time event type according to the state information of the terminal when the event type of the terminal is an intra-network mobile handover type; An OLTP unit, configured to control the terminal in real time to switch the wireless access point when the event type of the terminal is a real-time event type; An online analysis and processing OLAP unit, configured to regularly analyze changes in the state of the terminal when the event type of the terminal is a non-real-time event type, and control the terminal to perform wireless access points according to changes in the state of the terminal switch. 8. A mobile handover management method, characterized in that it includes: having a main controller on the switch side where at least one wireless access network is connected to the core network, and each mobile access network includes an edge controller and at least one a wireless access point, the mobile access network is at least one type of mobile access network; The edge controller analyzes the event type of the terminal according to the status information of the terminal associated with the at least one wireless access point in the mobile access network and/or covered by the at least one wireless access point, and when the When the event type of the terminal is an intra-network mobile handover type, control the terminal to switch the wireless access point, and when the event type of the terminal is an inter-network mobile handover type, send a handover trigger instruction to the main controller ; When the main controller receives a handover trigger indication sent by the edge controller of any mobile access network, the main controller controls the The terminal performs handover of the mobile access network. 9. The method of claim 8, further comprising: The state information of the terminals associated with each wireless access point and/or covered by each wireless access point is collected, and sent to the edge controller to which the wireless access point belongs. 10. A mobile handover management method, characterized in that, comprising: When the main controller receives a handover trigger indication sent by any edge controller of the mobile access network, according to at least one wireless access network obtained from the edge controller and in the mobile access network to which the edge controller belongs, point association and/or state information of the terminal covered by the at least one wireless access point, and control the terminal to perform mobile access network handover, and the handover trigger indication indicates that the event type of the terminal is an inter-network mobile handover type; Wherein, the main controller is at the switch side where at least one type of mobile access network is connected to the core network, each type of mobile access network includes an edge controller and at least one wireless access point, and the mobile access network is at least A type of mobile access network. 11. The method according to claim 10, wherein when the main controller receives a handover trigger indication sent by any edge controller of the mobile access network, according to the information obtained from the edge controller and Associate with at least one wireless access point in the mobile access network to which the edge controller belongs and/or state information of a terminal covered by the at least one wireless access point, and control the terminal to switch the mobile access network, include: receiving the status information of the terminal sent by any edge controller of the mobile access network; According to the handover trigger indication and the state information of the terminal, analyze that the event type of the handover trigger indication is a real-time event type or a non-real-time event type; When the event type indicated by the handover trigger is a real-time event type, control the terminal to perform mobile access network handover in real time; When the event type indicated by the handover trigger is a non-real-time event type, regularly analyze the change of the state of the terminal, and control the terminal to switch the mobile access network according to the change of the state of the terminal. 12. A mobile handover management method, comprising: The edge controller analyzes the event type of the terminal according to the state information of the terminal associated with at least one wireless access point in the mobile access network to which the edge controller belongs and/or covered by the at least one wireless access point; When the event type of the terminal is an intra-network mobile handover type, the edge controller controls the terminal to switch the wireless access point; When the event type of the terminal is an inter-network mobile handover type, the edge controller sends a handover trigger indication to the main controller, so that the main controller controls the terminal to perform mobile access network handover; Wherein, each mobile access network includes one edge controller and at least one wireless access point, the mobile access network is at least one type of mobile access network, and the main controller is in at least one The mobile access network is connected to the switch side of the core network. 13. The method according to claim 12, wherein, the edge controller associates with at least one wireless access point in the mobile access network to which the edge controller belongs and/or is associated with at least one wireless access point by the at least one wireless access point. The status information of the terminal covered by the access point, before analyzing the event type of the terminal, also includes: The edge controller requests any wireless access point in the mobile access network to which the edge controller belongs for a terminal that is associated with the arbitrary wireless access point and/or is covered by the arbitrary wireless access point status information; The edge controller receives the status information of the terminal sent by the wireless access point; The edge controller sends the status information of the terminal to the main controller. 14. The method according to claim 13, wherein when the event type of the terminal is an intra-network mobile handover type, the edge controller controls the terminal to switch the wireless access point, including : When the event type of the terminal is an intra-network mobile handover type, further analyzing that the terminal event type is a real-time event type or a non-real-time event type according to the state information of the terminal; When the event type of the terminal is a real-time event type, control the terminal to switch the wireless access point in real time; When the event type of the terminal is a non-real-time event type, periodically analyze the change of the state of the terminal, and control the terminal to switch the wireless access point according to the change of the state of the terminal.