CN103188790B - Information synchronization method and access controller - Google Patents
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Abstract
The invention discloses a kind of information synchronization method and access controller, access controller sends synchronous enabled message to the access point be attached thereto, after access point receives synchronous enabled message, the wireless user terminal information be attached thereto can be sent to access controller; Then the wireless user terminal information received and the local wireless user terminal information stored compare by access controller, can know which wireless user terminal is that this locality does not have, which wireless user terminal is that access point is unexistent, and then according to the wireless user terminal information between the synchronous this locality of comparative result and access point, ensure wireless terminal user data consistent therebetween, avoid the situation causing charging or certification to make mistakes because wireless terminal user data are therebetween inconsistent to occur, and then improve the satisfaction of Consumer's Experience.
Description
Technical field
The present invention relates to wireless communication field, be specifically related to a kind of information synchronization method and access controller.
Background technology
Along with the deployment of 3G network and smart mobile phone, notebook computer universal, the demand of wireless data presents explosive increase, 3G technology itself cannot support huge wireless data service demand, domestic and overseas operators is considered being originally positioned the supplementary WLAN (WLAN (wireless local area network) of access in radio one after another, WirelessLocalAreaNetwork) technology, promote supplementing as 3G covering, the shunting of 3G business is realized by WLAN, promote user awareness, reduce cost of investment, thus promotion wlan product and networking are from IT level to the transformation of telecom operation level.
Traditional wlan network is based on " fat " AP (access point, AccessPoint, access point can be wireless exchange board) framework, wlan network is made up of separate access point AP, tradition WLAN framework is very complicated on networking, management, configuration etc., is difficult to meet large scale deployment requirement.Be applied to the wlan network that telecommunications disposes at present and generally adopt " thin " AP framework (note: thin AP architecture is defined by RFC5415, RFC5416) based on AP+AC (access controller, AccessController).Under thin AP architecture, AC is similar to the base station controller in mobile network, by the control that CAPWAP agreement is carried out unified management, configuration to AP and accessed STA (wireless user terminal), under concentrated forward mode, use CAPWAP tunnel to complete convergence to AP incoming data stream simultaneously.
Under the framework based on thin AP, no matter be AP or be AC, for the consideration of each side such as charging, certification, all need the information safeguarding its lower STA hung.Unfortunately, some abnormal conditions, the wireless network card loose contact of such as AP, the netting twine of AP is pulled out (or netting twine loosens), network condition difference etc. because of unexpected factor, capital causes the upper STA information of AP and AC inconsistent, and then cause charging or certification to make mistakes, reduce the satisfaction of Consumer's Experience.
Summary of the invention
The main technical problem to be solved in the present invention is, a kind of information synchronization method and access controller are provided, access controller and the wireless terminal user data consistent on the access point be attached thereto can be ensured, avoid the situation causing charging or certification to make mistakes because wireless terminal user data are therebetween inconsistent to occur.
For solving the problems of the technologies described above, the invention provides a kind of information synchronization method, comprising:
Access controller sends synchronous enabled message to the access point be attached thereto;
After access point receives described synchronous enabled message, the current wireless user terminal information be attached thereto is sent to described access controller;
The wireless user terminal information received and the local wireless user terminal information stored compare, according to the wireless user terminal information between the synchronous this locality of comparative result and described access point by access controller.
In an embodiment of the present invention, access controller sends synchronous enabled message to before the access point be attached thereto, and also comprises access controller configuration synchronization cycle parameter step; Parameter synchronizing cycle of its configuration is comprised in the synchronous enabled message that access controller sends, after access point receives synchronous enabled message, give described access controller according to the current wireless user terminal information be attached thereto of periodic feedback synchronizing cycle that the synchronizing cycle comprised in this message, parameter was specified.
In an embodiment of the present invention, access controller send synchronous enabled message to the access point be attached thereto before, also comprise access controller configuration synchronization enable switch parameter step; The synchronous enabled switch parameter of its configuration is also comprised in the synchronous enabled message that access controller sends, before access point feeds back the current wireless user terminal information be attached thereto to described access controller, also comprise whether the enabled state represented by synchronous enabled switch parameter comprised in the synchronous enabled message judging that it receives is open synchronizing function state, be, then to the current wireless user terminal information be attached thereto of described access controller feedback, otherwise, not to the current wireless user terminal information be attached thereto of described access controller feedback.
In an embodiment of the present invention, the configuration of described access controller described synchronizing cycle parameter and/or synchronous enabled switch parameter be the overall actual parameter of corresponding all access points that it controls.
In an embodiment of the present invention, described access controller carries out grouping to connected access point by preset rules and controls, the configuration of described access controller described synchronizing cycle parameter and/or synchronous enabled switch parameter be the local actual parameter of one or more groups access point for its management.
In an embodiment of the present invention, the current wireless user terminal information be attached thereto sends to described access control implement body to comprise by access point:
The information of the current wireless user terminal be attached thereto is carried out grouping management by access point; And the current wireless user terminal information be attached thereto is sent to access controller in units of group.
In an embodiment of the present invention, access controller comprises according to the wireless user terminal information between the synchronous this locality of comparative result and described access point:
If described comparative result is comprise one or more wireless terminal user in the wireless user terminal information received not exist on access controller, access controller issues delete command to the access point sending described wireless user terminal information, and access point deletes described wireless terminal user according to this delete command;
If described comparative result is access controller exists one or more wireless user terminal not exist in its wireless user terminal information received, access controller deletes described wireless user terminal.
In an embodiment of the present invention, wireless user terminal packets of information is containing the mac address information of wireless terminal user, and the mac address information that the wireless user terminal information received and the local wireless user terminal information stored compare the wireless terminal user comprised in the wireless user terminal information being specially and being stored in the mac address information of the wireless terminal user comprised in the wireless user terminal information received and this locality compares by access controller.
Present invention also offers a kind of access controller, comprising:
Messaging interface: for sending synchronous enabled message to the access point be connected with described access controller, and receive the wireless user terminal information of described access point according to described synchronous enabled message feedback, and the wireless user terminal information received is sent to information processing module of user's;
Information processing module of user's: for the wireless user terminal received information and the local wireless user terminal information stored being compared, and comparative result is sent to synchronizing information module;
Synchronizing information module: for the wireless user terminal information between and described access point local according to the synchronous described access controller of described comparative result.
In an embodiment of the present invention, described access controller also comprises parameter configuration module, and described parameter configuration module was used for before described information sending module sends synchronous enabled message, configuration synchronization cycle parameter and/or synchronous enabled switch parameter; The synchronous enabled message that described information sending module sends comprises the parameter and/or synchronous enabled switch parameter synchronizing cycle of parameter configuration module configuration.
In an embodiment of the present invention, described synchronizing information module comprises according to the local wireless user terminal information stored with described access point of the synchronous described access controller of comparative result:
If the comparative result that synchronizing information module receives is comprise one or more wireless terminal user in the wireless user terminal information received not exist on access controller, synchronizing information module issues delete command to the access point sending described wireless user terminal information, and access point deletes described wireless terminal user according to this delete command;
If described comparative result is access controller exists one or more wireless user terminal not exist in its wireless user terminal information received, synchronizing information module deletes described wireless user terminal.
In an embodiment of the present invention, described messaging interface is CAPWAP messaging interface.
The invention has the beneficial effects as follows: the access controller in the present invention sends synchronous enabled message to the access point be attached thereto, after access point receives synchronous enabled message, the wireless user terminal information be attached thereto can be sent to access controller; Then the wireless user terminal information received and the local wireless user terminal information stored compare by access controller, can know which wireless user terminal is that this locality does not have, which wireless user terminal is that access point is unexistent, and then according to the synchronous local wireless user terminal information stored with access point of comparative result, ensure wireless terminal user data consistent therebetween, avoid the situation causing charging or certification to make mistakes because wireless terminal user data are therebetween inconsistent to occur, and then improve the satisfaction of Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the networking structure figure of a kind of WLAN provided by the invention;
Fig. 2 is the message synchronization method flow diagram of an embodiment of the present invention;
Fig. 3 is the access controller structural representation one of an embodiment of the present invention;
Fig. 4 is the access controller structural representation two of an embodiment of the present invention;
Fig. 5 is the access controller configuration parameter of an embodiment of the present invention and distributes the flow chart of synchronous enabled message;
Fig. 6 is the flow chart that the access controller of an embodiment of the present invention processes the wireless user terminal information that access point reports;
Fig. 7 is that the information processing module of user's of an embodiment of the present invention and synchronizing information module are to the process chart of the wireless user terminal information that access point reports.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
The information synchronization method provided in this example is synchronous for wireless user terminal information (STA) information between the access controller (AC) in WLAN (WLAN (wireless local area network), WirelessLocalAreaNetwork) technology and access point (AP).Wireless user terminal in this example can be mobile phone, IPAD, notebook etc.The networking of a typical WLAN as shown in Figure 1, an access controller can be connected by two layers or three-layer network with several access points, this part is wired connection, and be wireless connections between access point with wireless user terminal, such as can be connected by WIFI.It should be noted that, Fig. 1 in this example just for a better understanding of the present invention, what example that to be the part intercepted from the complete networking diagram of direct screening networking be was done further illustrates, the networking of actual WLAN also may be other extension mode, and the networking of WLAN in this example is except the network element shown in Fig. 1, also BRAS can be comprised, other network equipments such as router, directly do not contact with the solution of the present invention because these are arranged, therefore, in this example, following content no longer does additional description to these network equipments.
Refer to Fig. 2, the message synchronization method in this example comprises the following steps:
Access controller sends synchronous enabled message to the access point be attached thereto;
After access point receives synchronous enabled message, the wireless user terminal information be attached thereto is sent to access controller;
The wireless user terminal information received and the local wireless user terminal information stored compare by access controller, according to the wireless user terminal information between the synchronous this locality of comparative result and access point.
Namely the access point in this example is after the synchronous enabled message receiving access controller transmission, open its synchronizing function immediately, the current wireless user terminal information be attached thereto is sent to access controller, to make access controller according to the wireless terminal user information between the wireless user terminal information received and its local both wireless user terminal synchronizing information stored, to ensure wireless terminal user data consistency therebetween.
Access controller in this example also can control the current wireless user terminal information be attached thereto of the regular transmission of access point, therefore access controller send synchronous enabled message to the access point be attached thereto before, also can comprise the step of access controller configuration synchronization cycle parameter, with the time interval of specifying access point to upload wireless user terminal; Parameter synchronizing cycle of its configuration is comprised in the synchronous enabled message that access controller sends, after access point receives synchronous enabled message, according to the wireless user terminal information that the synchronizing cycle that the synchronizing cycle comprised in this synchronous enabled message, parameter was specified, periodic feedback was attached thereto to access controller.
In this example access controller send synchronous enabled message to the access point be attached thereto before, also can comprise the step of access controller configuration synchronization enable switch parameter, the synchronous enabled switch parameter of its configuration is also comprised in the synchronous enabled message that access controller sends, the synchronous enabled switch parameter of configuration can be used for the opening and closing indicating access point synchronizing function, namely access point is before the current wireless user terminal information be attached thereto of access controller feedback, judge whether the enabled state represented by enable switch parameter comprised in its synchronous enabled message received is open synchronizing function state, if, just to the current wireless user terminal information be attached thereto of access controller feedback, if the enabled state represented by enable switch parameter is for closing synchronizing function state, access point is not then to the current wireless user terminal information be attached thereto of access controller feedback.
It should be noted that, access controller configuration in this example synchronizing cycle parameter and/or synchronous enabled switch parameter may correspond to its overall actual parameter of all access points controlled, namely access controller configuration synchronizing cycle parameter and/or synchronous enabled switch parameter all effective to all access points be attached thereto.In order to access controller can more flexibly, effectively control the access point that is attached thereto, access controller in this example can carry out grouping to the access point be attached thereto by preset rules and control, when controlling when dividing into groups, access controller configuration synchronizing cycle parameter and/or synchronous enabled switch parameter can be the local actual parameter of one or more groups access point for its management, the parameter namely configured is only effective to one or more groups access point of its corresponding configuration.The rule when access point be attached thereto divides into groups by access controller in this example can comprise multiple, such as, the access point be attached thereto by double layer network can be divided into one group, the access point be attached thereto by three-layer network is divided into one group.Concrete rule of classification can be selected according to actual conditions.
Equally, when the current wireless user terminal information be attached thereto is sent to access controller by the access point in this example, also can adopt the mode that grouping sends, to avoid the wireless terminal user under access point too much, the packet sent is excessive, exceedes the situation of the ability to bear of system, specific as follows:
The information preset rules of the wireless user terminal be attached thereto is carried out grouping management by access point; And the current wireless user terminal information be attached thereto is sent to access controller in units of group, such as report wireless user terminal information according to SSID.The wireless terminal user information that same access controller this locality corresponds to this access point is also grouping management, after receiving the wireless user terminal information that access point sends in units of group, its wireless user terminal information of corresponding with this locality group is compared, but not compare with all wireless user terminal information that this example stores, way to manage is more flexible, and synchronous efficiency is higher.
Access controller in this example comprises according to the synchronous local wireless user terminal information stored with access point of comparative result:
If comparative result is comprise one or more wireless terminal user in the wireless user terminal information received not exist on access controller, access controller issues delete command to the access point sending wireless user terminal information, and access point deletes non-existent wireless terminal user on access controller according to this delete command;
Do not exist in its wireless user terminal information received if comparative result is the wireless user terminal that access controller exists, access controller deletes non-existent wireless user terminal on access point.
In this example, wireless user terminal packets of information is containing the mac address information of wireless terminal user, therefore the mac address information that the wireless user terminal information received and the local wireless user terminal information stored compare the wireless terminal user comprised in the wireless user terminal information specifically stored in the mac address information of the wireless terminal user comprised in the wireless user terminal information received and this locality compares by access controller, larger due to the above-mentioned wireless user terminal of access point, if take out the wireless user terminal information that a wireless user terminal reports with regard to traversal access point from access controller this locality, efficiency is very low.Therefore can adopt some algorithms to optimize in concrete comparison procedure, mainly can consider from following two angles:
A, sequence, can according to certain byte, or certain several byte sorts.The basis of sequence is identical because of two groups of MAC Address major parts, can allow when traversal and find identical MAC Address sooner after sequence.
B, reduce the number of MAC Address to be compared gradually, find identical MAC Address at every turn, then deleted respectively from two groups.If certain traversal does not find identical MAC Address, then this MAC Address is removed, no longer participate in traversal.
Based on the two kinds of thinkings provided in this example, synchronous efficiency can be improved.The algorithm of concrete employing can comprise multiple, and those skilled in the art can select according to actual conditions.
Refer to Fig. 3, this example additionally provides a kind of access controller, comprising:
Messaging interface: for sending synchronous enabled message to the access point be connected with access controller, and receive access point according to the wireless user terminal information of synchronous enabled message feedback, and the wireless user terminal information received is sent to information processing module of user's;
Information processing module of user's: for the wireless user terminal received information and the local wireless user terminal information stored being compared, and comparative result is sent to synchronizing information module;
Synchronizing information module: the wireless user terminal information stored for and access point local according to the synchronous access controller of comparative result.
Refer to Fig. 4, access controller also comprises parameter configuration module, and parameter configuration module is used for sending synchronous enabled message to before in information sending module, configuration synchronization cycle parameter and/or synchronous enabled switch parameter; The synchronous enabled message that information sending module sends comprises the parameter and/or synchronous enabled switch parameter synchronizing cycle of parameter configuration module configuration.
Wherein, synchronizing information module comprises according to the local wireless user terminal information stored with access point of the synchronous access controller of comparative result:
Do not exist on access controller if the comparative result that synchronizing information module receives is the one or more wireless terminal users comprised in the wireless user terminal information received, synchronizing information module issues delete command to the access point sending wireless user terminal information, access point deletes wireless terminal user, to ensure the consistency of the wireless user terminal information between access point and access controller according to this delete command.
If comparative result is access controller exists one or more wireless user terminal not exist in its wireless user terminal information received, synchronizing information module deletes described wireless user terminal, to ensure the consistency of the wireless user terminal information between access point and access controller.
It should be noted that, communication in this example between access point and access controller is by CAPWAP protocol realization, namely the messaging interface in this example is CAPWAP messaging interface, and the synchronous enabled message that corresponding access controller sends is handed down to access point by ConfigurationUpdateRequest message; Access point is then by all wireless user terminal information of one or more WTPEventRequest information reporting.Namely the parameter coding of the CAPWAP messaging interface in this example also for the parameter configuration module of access controller being configured is issue access point after ConfigurationUpdateRequest message, also access point by issuing information processing module of user's after the decoding of the wireless user terminal information of WTPEventRequest information reporting, by information processing module of user's, it to be processed in a manner described simultaneously.
For a better understanding of the present invention, with the method implementing procedure of several concrete steps, the present invention will be further described below, and shown in Figure 5 is access controller configuration parameter and the process of distributing synchronous enabled message, specifically comprises following steps:
Step 510: parameter configuration module configuration parameter (being generally configured by order line).Configuration parameter mainly contain synchronous enabled switch parameter and synchronizing cycle parameter, and as from the foregoing, according to actual needs, the access point packet parameters for global parameter or local can be joined, just be configured in access point grouping, this routine access point is grouped into example and is described further;
Step 520: after having configured, Trigger message transceiver module reads configuration from access point grouping, is packaged into inside story, and carries out coding formation ConfigurationUpdateRequest message to it;
Step 530: the message ConfigurationUpdateRequest message after coding is sent to access point by messaging interface.
Access controller shown in Figure 6 processes the wireless user terminal information that access point reports, and specifically comprises following steps:
Step 610: access point reports wireless user terminal information, issues access controller mainly through WTPEventRequest message;
Step 620, messaging interface is decoded to the WTPEventRequest information received and issues information processing module of user's;
Step 640, information processing module of user's compares process to the wireless user terminal information reported.
Information processing module of user's shown in Figure 7 and synchronizing information module report the process of wireless user terminal information to access point, specifically comprise:
Step 710: the wireless user terminal information periodically being reported certain grouping (SSID) by access point by WTPEventRequest message to access controller;
Step 720: be responsible for decoding by the messaging interface on access controller, changes into inside story and sends to information processing module of user's after decoding, inside story mainly contains the information of grouping (SSID) information and wireless user terminal;
Step 730: information processing module of user's obtain access controller this locality to should access point grouping (SSID) under wireless user terminal information;
Step 740: the wireless user terminal information that wireless user terminal information and the access point of information processing module of user's to access controller this locality report compares process;
Step 750: synchronizing information module is according to the wireless user terminal information between the synchronous described access controller of comparative result and access point, specific as follows:
If 1 access controller and access point all have certain wireless user terminal information, then continue to compare.As all wireless user terminal information all travels through end, then this time synchronizing process terminates.
If 2 access controllers have, and access point does not have, then synchronizing information module deletes this record on access controller, continues traversal, and as traveled through end, then this time synchronizing process terminates.
If 3 access controllers not had, and access point has, then synchronizing information module issues delete command to the access point sending wireless user terminal information, access point deletes wireless terminal user according to this delete command, to ensure the consistency of the wireless user terminal information between access point and access controller, then continue traversal.As traveled through end, then this time synchronizing process terminates.
In summary, in the present invention, access point is after the synchronous enabled message receiving access controller transmission, its synchronizing function can be opened immediately, regular sends to access controller by the current wireless user terminal information be attached thereto, to make access controller according to the wireless terminal user information between the wireless user terminal information received and its local both wireless user terminal synchronizing information stored, to ensure wireless terminal user data consistency therebetween, avoid wireless user terminal information between the access controller because some abnormal conditions cause and access point inconsistent and the certification caused, the series of problems such as charging, improve the satisfaction of Consumer's Experience.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (12)
1. an information synchronization method, is characterized in that comprising:
Access controller sends synchronous enabled message to the access point be attached thereto;
After access point receives described synchronous enabled message, the current wireless user terminal information be attached thereto is sent to described access controller;
The wireless user terminal information received and the local wireless user terminal information stored compare by access controller, according to the wireless user terminal information between the synchronous this locality of comparative result and described access point, comprising:
If described comparative result is comprise one or more wireless terminal user in the wireless user terminal information received not exist on access controller, access controller issues delete command to the access point sending described wireless user terminal information, and access point deletes described wireless terminal user according to this delete command.
2. information synchronization method as claimed in claim 1, it is characterized in that, access controller sends synchronous enabled message to before the access point be attached thereto, and also comprises access controller configuration synchronization cycle parameter step; Parameter synchronizing cycle of its configuration is comprised in the synchronous enabled message that access controller sends, after access point receives synchronous enabled message, give described access controller according to the current wireless user terminal information be attached thereto of periodic feedback synchronizing cycle that the synchronizing cycle comprised in this message, parameter was specified.
3. information synchronization method as claimed in claim 2, is characterized in that, access controller send synchronous enabled message to the access point be attached thereto before, also comprise access controller configuration synchronization enable switch parameter step; The synchronous enabled switch parameter of its configuration is also comprised in the synchronous enabled message that access controller sends, before access point feeds back the current wireless user terminal information be attached thereto to described access controller, also comprise whether the enabled state represented by synchronous enabled switch parameter comprised in the synchronous enabled message judging that it receives is open synchronizing function state, be, then to the current wireless user terminal information be attached thereto of described access controller feedback, otherwise, not to the current wireless user terminal information be attached thereto of described access controller feedback.
4. information synchronization method as claimed in claim 3, is characterized in that, described access controller configuration described synchronizing cycle parameter and/or synchronous enabled switch parameter be the overall actual parameter of corresponding all access points that it controls.
5. information synchronization method as claimed in claim 3, it is characterized in that, described access controller carries out grouping to connected access point by preset rules and controls, the configuration of described access controller described synchronizing cycle parameter and/or synchronous enabled switch parameter be the local actual parameter of one or more groups access point for its management.
6. information synchronization method as claimed in claim 5, it is characterized in that, the current wireless user terminal information be attached thereto sends to described access control implement body to comprise by access point:
The information of the current wireless user terminal be attached thereto is carried out grouping management by access point; And the current wireless user terminal information be attached thereto is sent to access controller in units of group.
7. the information synchronization method as described in any one of claim 1-6, is characterized in that, access controller also comprises according to the wireless user terminal information between the synchronous this locality of comparative result and described access point:
If described comparative result is access controller exists one or more user terminal not exist in its wireless user terminal information received, access controller deletes described wireless user terminal.
8. the information synchronization method as described in any one of claim 1-6, it is characterized in that, wireless user terminal packets of information is containing the mac address information of wireless terminal user, and the mac address information that the wireless user terminal information received and the local wireless user terminal information stored compare the wireless terminal user comprised in the wireless user terminal information being specially and being stored in the mac address information of the wireless terminal user comprised in the wireless user terminal information received and this locality compares by access controller.
9. an access controller, is characterized in that, comprising:
Messaging interface: for sending synchronous enabled message to the access point be connected with described access controller, and receive the wireless user terminal information of described access point according to described synchronous enabled message feedback, and the wireless user terminal information received is sent to information processing module of user's;
Information processing module of user's: for the wireless user terminal received information and the local wireless user terminal information stored being compared, and comparative result is sent to synchronizing information module;
Synchronizing information module: for according to the wireless user terminal information between the synchronous described access controller of described comparative result and described access point, comprising:
If the comparative result that synchronizing information module receives is comprise one or more wireless terminal user in the wireless user terminal information received not exist on access controller, synchronizing information module issues delete command to the access point sending described wireless user terminal information, and access point deletes described wireless terminal user according to this delete command.
10. access controller as claimed in claim 9, it is characterized in that, described access controller also comprises parameter configuration module, described parameter configuration module be used for described messaging interface send synchronous enabled message to the access point be connected with described access controller before, configuration synchronization cycle parameter and/or synchronous enabled switch parameter; The synchronous enabled message that described messaging interface sends comprises the parameter and/or synchronous enabled switch parameter synchronizing cycle of parameter configuration module configuration.
11. access controllers as described in claim 9 or 10, is characterized in that, the wireless user terminal information of described synchronizing information module according to the synchronous described access controller of comparative result between local and described access point also comprises:
If described comparative result is access controller exists one or more wireless user terminal not exist in its wireless user terminal information received, synchronizing information module deletes described wireless user terminal.
12. access controllers as described in claim 9 or 10, it is characterized in that, described messaging interface is CAPWAP messaging interface.
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| CN105933973A (en) * | 2016-04-20 | 2016-09-07 | 上海斐讯数据通信技术有限公司 | Access point synchronization method and system managed by cloud access controller |
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| CN101242302A (en) * | 2008-03-12 | 2008-08-13 | 华为技术有限公司 | Data synchronization method, device and system |
| CN101252498A (en) * | 2008-04-03 | 2008-08-27 | 杭州华三通信技术有限公司 | Access point, access controller and communication method thereof |
| CN101651586A (en) * | 2008-08-15 | 2010-02-17 | 华为技术有限公司 | Processing method, device and system for updating CSG information |
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| CN101242302A (en) * | 2008-03-12 | 2008-08-13 | 华为技术有限公司 | Data synchronization method, device and system |
| CN101252498A (en) * | 2008-04-03 | 2008-08-27 | 杭州华三通信技术有限公司 | Access point, access controller and communication method thereof |
| CN101651586A (en) * | 2008-08-15 | 2010-02-17 | 华为技术有限公司 | Processing method, device and system for updating CSG information |
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