Wireless WLAN network operation and maintenance intelligent scheduling system

Abstract

The application discloses a wireless WLAN network operation and maintenance intelligent scheduling system and relates to the technical field of wireless communication network operation and maintenance.The system comprises a mobile path segment construction module, a mobile connection intention generation module, a candidate connection evaluation module, a roaming pre-dispatching module and a roaming result writing-back module.The mobile path segment construction module generates a mobile path segment set according to a wireless access point account and a mobile terminal roaming record; the mobile connection intention generation module reads access information of a current mobile terminal, combines the access information with the mobile path segment set, and generates a mobile connection intention code containing a mobile direction field, a terminal capability constraint field and an authentication acceptance constraint field; the candidate connection evaluation module generates a candidate connection evaluation result according to the mobile connection intention code; and the roaming pre-dispatching module generates a roaming pre-dispatching contract according to the candidate connection evaluation result, and performs corresponding wireless access point dispatching and authentication acceptance processing.

Description

Technical Field

[0001] This invention relates to the field of wireless communication network operation and maintenance technology, specifically to an intelligent scheduling system for wireless WLAN network operation and maintenance. Background Technology

[0002] In wireless WLAN network operation and maintenance scenarios, mobile terminals typically make roaming decisions based on their own scanning results, changes in received signal strength indicators, and the response status of wireless access points. This approach relies heavily on real-time judgment from the mobile terminal side. The operation and maintenance system can usually only perform post-event analysis based on the mobile terminal's roaming records and authentication results after roaming, re-authentication, or connection anomalies have occurred. For the process of a mobile terminal moving from the coverage area of ​​the current serving wireless access point to the coverage area of ​​a connecting wireless access point, existing methods lack combined judgments on the spatial adjacency relationship of wireless access points, service set identifiers, movement direction fields, terminal capability constraint fields, and authentication acceptance constraint fields. This can easily lead to problems such as mismatches between the selected connecting wireless access point and the actual movement direction, inconsistencies between roaming assistance methods and mobile terminal capabilities, and inconsistencies between authentication acceptance processing and authentication result information.

[0003] The aforementioned deficiencies typically occur when the mobile terminal is located in an area where the coverage of multiple wireless access points overlaps, when the direction of change in the received signal strength indication of the mobile terminal differs from that of historical movement path segments, or when the roaming assistance mode corresponding to the mobile terminal's capability identifier has not been pre-converted into a scheduling action by the operation and maintenance system. In such cases, the mobile terminal may experience abnormal results such as associated fallbacks between the current serving wireless access point and other wireless access points, re-authentication after roaming, service session interruptions, candidate connection path offsets, and mismatches between the mobile terminal's roaming records and operation and maintenance scheduling records. This makes it difficult for the intelligent scheduling system for wireless WLAN network operation and maintenance to use the roaming results to correct subsequent movement path segment sets and candidate connection evaluation results. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent scheduling system for the operation and maintenance of wireless WLAN networks, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a wireless WLAN network operation and maintenance intelligent scheduling system, including a mobile path segment construction module, a mobile call intention generation module, a candidate call evaluation module, a roaming pre-scheduling module, and a roaming result write-back module; The mobile path fragment construction module reads the access point ledger and mobile terminal roaming records in the wireless WLAN and generates a set of mobile path fragments; The mobile connection intent generation module reads the current mobile terminal's access information and combines it with the mobile path segment set to generate a mobile connection intent code; The candidate connection evaluation module generates candidate connection evaluation results based on mobile connection intent encoding; The roaming pre-scheduling module analyzes the candidate connection evaluation results, generates a roaming pre-scheduling contract, and executes roaming pre-scheduling according to the roaming pre-scheduling contract; The roaming result write-back module obtains the execution records of the roaming pre-scheduling and combines them with the execution results of the roaming pre-scheduling to generate path write-back results.

[0006] Preferably, the mobile path segment construction module includes a ledger roaming record registration unit and a mobile path segment forming unit; The ledger roaming record registration unit is used to read the wireless access point ledger and the mobile terminal roaming record, and match the wireless access point identifier in the mobile terminal roaming record with the wireless access point identifier in the wireless access point ledger to generate the ledger roaming registration result, namely the ledger roaming registration item. The wireless access point ledger is derived from the management records of wireless access points. The wireless access point ledger includes wireless access point identifiers, spatial area identifiers, and spatial adjacency relationships between wireless access points. The mobile terminal roaming record is obtained from the mobile terminal roaming process record obtained from the radio access controller. The mobile terminal roaming record includes the mobile terminal identifier, service set identifier, radio access point identifier before roaming, and radio access point identifier after roaming. After reading a mobile terminal roaming record, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier before roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained; at the same time, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier after roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained. When both the pre-roaming and post-roaming wireless access point identifiers exist in the wireless access point register, and the two wireless access point identifiers correspond to the same spatial area identifier, and the two wireless access point identifiers have a spatial adjacency relationship in the wireless access point register, then the mobile terminal roaming record is converted into a register roaming registration item.

[0007] When the pre-roaming radio access point identifier in the mobile terminal roaming record does not have a corresponding entry in the radio access point ledger, the post-roaming radio access point identifier does not have a corresponding entry in the radio access point ledger, the spatial area identifiers corresponding to the two radio access point identifiers are different, or the two radio access point identifiers do not have a spatial adjacency relationship in the radio access point ledger, the ledger roaming record registration unit writes the mobile terminal roaming record into the unformed roaming record, and it is not used as the basis for the formation of this mobile path segment.

[0008] Preferably, the mobile path segment forming unit uses the service set identifier and spatial region identifier in the ledger roaming registration item as the classification basis, and classifies ledger roaming registration items with the same service set identifier and the same spatial region identifier into the same segment forming group; Each segment forming group corresponds to a service set identifier and a spatial region identifier, which are used to limit the formation of mobile path segments only within the same wireless network service range and the same spatial region; Feature extraction is performed on the roaming registration items in the ledger, extracting the starting wireless access point identifier and the subsequent wireless access point identifier, and writing the starting wireless access point identifier and the subsequent wireless access point identifier into the mobile path segment in the segment forming group. Each mobile path segment includes the starting radio access point identifier, the successor radio access point identifier, the spatial area identifier, and the service set identifier. The starting radio access point identifier is used to indicate the radio access point associated with the mobile terminal before roaming occurs, the successor radio access point identifier is used to indicate the radio access point associated with the mobile terminal after roaming occurs, the spatial area identifier is used to indicate the spatial area to which the mobile path segment belongs, and the service set identifier is used to indicate the wireless network service set to which the mobile path segment is applicable. Based on mobile path segments, continuous relationship processing is performed on multiple roaming registration items under the same mobile terminal identifier, the same service set identifier, and the same spatial region identifier; When the connecting radio access point identifier in one roaming registration entry is the same as the starting radio access point identifier in another roaming registration entry, and the two roaming registration entries have the same mobile terminal identifier, the same service set identifier, and the same spatial area identifier, the mobile path segments corresponding to the two roaming registration entries are grouped into the same continuous segment group. A continuous segment group is used to represent the connection relationship formed by a mobile terminal along multiple wireless access points in the same spatial area; The moving path segments formed within each segment forming group and the continuous segment groups are merged into a moving path segment set.

[0009] Preferably, the mobile call connection intention generation module includes an access information access unit and a call connection intention encoding and shaping unit; The access information access unit reads the current mobile terminal's access information and organizes the access information into the current access index item; The current access information for mobile terminals comes from mobile terminal online association information, wireless access point terminal association reporting information, and authentication result information. The mobile terminal online association information comes from the terminal online table maintained by the wireless access controller, and is used to obtain the mobile terminal identifier, the current serving wireless access point identifier, and the service set identifier; The wireless access point terminal association reporting information comes from the current service wireless access point's reporting of the association relationship with the mobile terminal, and is used to obtain the direction of change of received signal strength indication and the mobile terminal capability identifier. The authentication result information comes from the maintenance information of the mobile terminal's authentication result under the corresponding service set identifier by the wireless WLAN network operation and maintenance intelligent scheduling system, and is used to obtain the authentication result identifier; Using the current service wireless access point identifier in the mobile terminal's online association information as an index, the spatial area identifier corresponding to the current service wireless access point identifier is read from the wireless access point ledger, and a current access index item is generated.

[0010] Preferably, the continuation intent encoding shaping unit combines the current access index item with the mobile path segment set to generate mobile continuation intent encoding; The current service radio access point identifier, service set identifier, and spatial region identifier in the current access index item are used as matching fields; the corresponding mobile path fragment is read from the mobile path fragment set. And the corresponding mobile path segment satisfies the following: the starting radio access point identifier is consistent with the current serving radio access point identifier, the service set identifier is consistent with the service set identifier in the current access index entry, and the spatial region identifier is consistent with the spatial region identifier in the current access index entry. The connecting radio access point identifier in the corresponding mobile path segment is used as the connecting candidate radio access point identifier, and the connecting direction identifier is generated based on the starting radio access point identifier and the connecting radio access point identifier in the corresponding mobile path segment. The connection direction identifier is used to indicate the connection direction between radio access points in the mobile path segment, and it is derived from the starting radio access point identifier and the connecting radio access point identifier in the mobile path segment set. Match the direction of change of received signal strength indication in the current access index entry with the connection direction identifier, and generate a movement direction field; When the direction of change of the received signal strength indicator is consistent with the continuation direction identifier, the path same direction identifier is written into the movement direction field; When the direction of change of the received signal strength indication is inconsistent with the direction of continuation, the path deviation indicator is written into the movement direction field; Generate a terminal capability constraint field based on the mobile terminal capability identifier in the current access index item; When the mobile terminal capability identifier includes the IEEE 802.11k capability field, the terminal capability constraint field is written with the neighbor report constraint identifier; when the mobile terminal capability identifier includes the IEEE 802.11v capability field, the terminal capability constraint field is written with the basic service set conversion management constraint identifier; when the mobile terminal capability identifier includes the fast roaming capability field, the terminal capability constraint field is written with the fast roaming constraint identifier; when the mobile terminal capability identifier does not include the above capability fields, the terminal capability constraint field is written with the ordinary reassociation constraint identifier. Generate an authentication acceptance constraint field based on the authentication result identifier in the current access index item; When the authentication result is marked as authentication passed, the authentication continuation constraint field is written with the authentication synchronization constraint identifier. When the authentication result identifier is a re-authentication identifier, the authentication acceptance constraint field is written with the re-authentication constraint identifier; The acquired mobile direction field, terminal capability constraint field, and authentication acceptance constraint field are integrated to generate the mobile connection intent code.

[0011] Preferably, the candidate connection evaluation module includes a connection direction evaluation unit and a connection method evaluation unit; The connection direction evaluation unit reads the movement direction field in the movement connection intention code and generates a connection direction evaluation identifier based on the movement direction field, including a preceding connection identifier and a holding connection identifier; The movement direction field originates from the movement connection intention generation module; the movement direction field is generated by mapping the direction of change of received signal strength indication to the connection direction identifier, including path same direction identifier and path deviation identifier; Perform continuity direction evaluation based on the identifier in the movement direction field: When the movement direction field is a path-same-direction identifier, a preceding continuation identifier is generated; When the movement direction field is a path deviation indicator, a keep-on-continuity indicator is generated.

[0012] Among them, the pre-connection identifier is used to indicate that the direction of change of the received signal strength indication of the mobile terminal is consistent with the connection direction in the mobile path segment. The subsequent roaming pre-scheduling module can process the roaming auxiliary actions of the mobile terminal according to the pre-connection method. The continuity identifier is used to indicate that the direction of change of the received signal strength of the mobile terminal is inconsistent with the continuity direction in the mobile path segment. The subsequent roaming pre-scheduling module can handle the roaming assistance actions of the mobile terminal in a way that maintains the current continuity relationship. Preferably, the connection method evaluation unit reads the connection direction evaluation identifier, the terminal capability constraint field, and the authentication acceptance constraint field, and generates candidate connection evaluation results. The specific process is as follows: When the connection direction evaluation identifier is a pre-connection identifier, read the terminal capability constraint field and the authentication acceptance constraint field, and generate the roaming assistance mode identifier and the authentication acceptance mode identifier according to the two types of constraint fields; When the connection direction evaluation identifier is the maintain connection identifier, the maintain connection identifier will be written into the candidate connection evaluation result, and the roaming assistance method identifier and the authentication acceptance method identifier will be set as maintain connection processing items; The roaming assistance mode identifier is generated based on the terminal capability constraint field. When the terminal capability constraint field is the neighbor report constraint identifier, the roaming assistance mode identifier is written into the neighbor report processing item; When the terminal capability constraint field is the basic service set conversion management constraint identifier, the roaming assistance mode identifier is written into the basic service set conversion management processing item; When the terminal capability constraint field is the fast roaming constraint identifier, the roaming assistance mode identifier is written into the fast roaming processing item; When the terminal capability constraint field is a normal re-association constraint identifier, the roaming assistance mode identifier is written into the normal re-association processing item; The authentication acceptance method identifier is generated based on the authentication acceptance constraint field. When the authentication acceptance constraint field is the authentication synchronization constraint identifier, the authentication acceptance method identifier is written into the authentication synchronization processing item; When the authentication acceptance constraint field is a re-authentication constraint identifier, the authentication acceptance method identifier is written into the re-authentication processing item.

[0013] Preferably, the roaming pre-scheduling module includes a scheduling contract forming unit and a scheduling contract execution unit; The scheduling contract forming unit reads the succession direction evaluation identifier from the candidate succession evaluation results; When the current connection identifier is written into the candidate connection evaluation result, the connection candidate radio access point identifier is written into the first connection radio access point identifier. When the connection identifier is kept in the candidate connection evaluation result, the current serving radio access point identifier is written into the first connection radio access point identifier. The first connecting radio access point identifier is used to determine the connecting execution object of this roaming pre-scheduling contract, and its source is the connecting candidate radio access point identifier or the current serving radio access point identifier. Invoke the roaming assistance method identifier in the candidate connection evaluation results; When the roaming assistance mode is identified as a neighbor report processing item, a current service wireless access point execution item is generated; The current serving wireless access point execution item is used to instruct the current serving wireless access point to send a neighbor report information containing the identifier of the first connected wireless access point to the mobile terminal; When the roaming assistance mode is identified as a basic service set conversion management processing item, a current service radio access point execution item is generated. The current service radio access point execution item is used to instruct the current service radio access point to send basic service set conversion management information containing the identifier of the first connected radio access point to the mobile terminal. When the roaming assistance mode is identified as a fast roaming processing item, a first connection wireless access point execution item is generated. The first connection wireless access point execution item is used to instruct the first connection wireless access point to receive the fast roaming reassociation request from the mobile terminal. When the roaming assistance mode is identified as a normal reassociation processing item, a first connection wireless access point execution item is generated. The first connection wireless access point execution item is used to instruct the first connection wireless access point to receive the normal reassociation request from the mobile terminal. When the roaming assistance mode is identified as a keep-connection processing item, a current serving radio access point execution item is generated. The current serving radio access point execution item is used to instruct the current serving radio access point to maintain its association with the mobile terminal. Read the certification acceptance method identifier from the candidate succession evaluation results; When the authentication acceptance method is identified as authentication synchronization processing item, an authentication acceptance execution item is generated. The authentication acceptance execution item is used to instruct the wireless WLAN network operation and maintenance intelligent scheduling system to send the authentication result identifier of the mobile terminal under the service set identifier to the first connected wireless access point. When the authentication acceptance method is identified as a re-authentication processing item, an authentication acceptance execution item is generated. The authentication acceptance execution item is used to instruct the first connection wireless access point to perform the authentication processing corresponding to the service set identifier after receiving the mobile terminal reassociation request. The mobile terminal identifier, service set identifier, current serving radio access point identifier, first connecting radio access point identifier, current serving radio access point execution item, first connecting radio access point execution item, and authentication acceptance execution item are combined into a roaming pre-scheduling contract.

[0014] Preferably, the scheduling contract execution unit executes the roaming pre-scheduling according to the roaming pre-scheduling contract and generates a pre-scheduling execution record, as follows: Send the current service wireless access point execution item to the current service wireless access point; When the current serving wireless access point is performing a neighbor report processing item, the current serving wireless access point sends neighbor report information containing the identifier of the first connected wireless access point to the mobile terminal. When the current serving radio access point is performing a basic service set conversion management process, the current serving radio access point sends basic service set conversion management information containing the identifier of the first connected radio access point to the mobile terminal. When the current service wireless access point is performing a maintain connection processing item, the current service wireless access point maintains its association with the mobile terminal; Send the first connection wireless access point execution item to the first connection wireless access point; When the first connected wireless access point performs the fast roaming processing item, the first connected wireless access point receives the fast roaming reassociation request from the mobile terminal. When the first connection wireless access point performs a normal reassociation process, the first connection wireless access point receives the normal reassociation request from the mobile terminal. Process certification acceptance according to the certification acceptance execution items; When the authentication execution item is an authentication synchronous processing item, the wireless WLAN network operation and maintenance intelligent scheduling system will send the authentication result identifier of the mobile terminal under the service set identifier to the first connected wireless access point. When the authentication execution item is a re-authentication processing item, the first connection wireless access point executes the authentication processing corresponding to the service set identifier after receiving the mobile terminal re-association request; after processing, a pre-scheduling execution record is generated.

[0015] The pre-scheduling execution record includes the mobile terminal identifier, service set identifier, current service radio access point identifier, first connection radio access point identifier, roaming assistance mode identifier, and authentication acceptance mode identifier; Preferably, the roaming result write-back module includes a roaming result registration unit and a path write-back shaping unit; The roaming result registration unit reads the pre-scheduling execution record, the mobile terminal roaming record, and the authentication result information, and registers the three to generate roaming result registration items; First, read the mobile terminal identifier and service set identifier from the pre-scheduling execution record, and then read the mobile terminal identifier and service set identifier from the mobile terminal roaming record; If the mobile terminal identifier in the preceding scheduling execution record is consistent with the mobile terminal identifier in the mobile terminal roaming record, and the service set identifier in the preceding scheduling execution record is consistent with the service set identifier in the mobile terminal roaming record, the preceding scheduling execution record and the mobile terminal roaming record will be classified into the same roaming result registration item. Read the mobile terminal identifier and service set identifier from the authentication result information and match them with the mobile terminal identifier and service set identifier in the roaming result registration item; if the match is consistent, write the authentication result identifier from the authentication result information into the roaming result registration item. The path writeback shaping unit generates path writeback results based on the roaming result registration items, as follows: Read the first connected wireless access point identifier and the wireless access point identifier after roaming from the roaming result registration item, and perform connection object matching processing; When the roaming wireless access point identifier matches the first connected wireless access point identifier, read the current serving wireless access point identifier, the first connected wireless access point identifier, and the service set identifier from the roaming result registration item, and use the current serving wireless access point identifier as the starting wireless access point identifier and the first connected wireless access point identifier as the connected wireless access point identifier to generate a connection confirmation path segment. When the roaming wireless access point identifier is inconsistent with the first connection wireless access point identifier, read the current serving wireless access point identifier, the roaming wireless access point identifier and the service set identifier from the roaming result registration item, and write the roaming wireless access point identifier into the connection correction item. The connection correction item is used to record that, in the connection scenario defined by the current serving radio access point identifier and the service set identifier, the radio access point identifier that the mobile terminal actually roams to is different from the first connection radio access point identifier pointed to by the pre-scheduling. Read the authentication result identifier from the roaming result registration item and process the authentication result; When the authentication result is marked as successful, the result is written to the continuation confirmation path segment; this is used to indicate that the roaming process corresponding to the continuation confirmation path segment matches the authentication result; When the authentication result is identified as re-authentication, the authentication acceptance method identifier, current serving radio access point identifier, first connecting radio access point identifier and service set identifier in the roaming result registration item are read, and an authentication acceptance restriction item is generated. The authentication acceptance restriction item is used to record the authentication acceptance method identifier in the pre-scheduled execution record that generates a re-authentication result in the connection scenario limited by the current service wireless access point identifier, the first connection wireless access point identifier, and the service set identifier. The continuation confirmation path segment, continuation correction item, and authentication acceptance restriction item are combined into the path write-back result.

[0016] This invention provides an intelligent scheduling system for the operation and maintenance of wireless WLAN networks, which has the following beneficial effects: (1) During system operation, the candidate connection evaluation module generates candidate connection evaluation results based on mobile connection intent encoding. The system can uniformly evaluate connection direction, roaming assistance mode, and authentication acceptance mode according to the mobile direction field, terminal capability constraint field, and authentication acceptance constraint field. This process provides the roaming pre-scheduling module with a clear scheduling basis, enabling it to distinguish between pre-connection processing and hold-up processing, and to select neighbor report processing items, basic service set conversion management processing items, fast roaming processing items, or ordinary reassociation processing items according to the mobile terminal's capabilities. This improves the problem of the disconnect between candidate radio access point selection, roaming assistance mode, and authentication acceptance processing in the prior art.

[0017] (2) The mobile path segment forming unit extracts the starting radio access point identifier and the successor radio access point identifier from the roaming registration items in the ledger and writes them into the mobile path segment, so that the mobile path segment can express the connection relationship of the mobile terminal from the radio access point before roaming to the radio access point after roaming. Further, the system performs continuous relationship processing on multiple ledger roaming registration items under the same mobile terminal identifier, the same service set identifier, and the same spatial area identifier. When the successor radio access point identifier in one ledger roaming registration item is the same as the starting radio access point identifier in another ledger roaming registration item, the corresponding mobile path segments are grouped into the same continuous segment group. Through this processing, the system can organize the scattered single roaming records into path segment results with continuous connection relationships, providing a path basis for subsequent determination of the connection direction of the mobile terminal.

[0018] (3) The call continuation intent encoding forming unit generates a call continuation direction identifier based on the starting radio access point identifier and the next radio access point identifier in the corresponding mobile path segment, and maps the direction of change of received signal strength indication in the current access index item to the call continuation direction identifier to generate a mobile direction field; at the same time, it generates a terminal capability constraint field based on the mobile terminal capability identifier and an authentication acceptance constraint field based on the authentication result identifier. Through this process, the system can uniformly write the three types of factors—mobile direction, terminal capability, and authentication acceptance—into the mobile call continuation intent encoding, so that subsequent candidate call continuation evaluation no longer depends solely on the change of received signal strength indication, but simultaneously considers the mobile path segment, mobile terminal capability, and authentication result information, thus improving the problems of scattered roaming judgment conditions and incomplete scheduling basis in the prior art. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating the intelligent scheduling system for wireless WLAN network operation and maintenance of the present invention. Figure 2 This is a schematic diagram of the ledger roaming record registration and judgment process of the present invention; Figure 3 This is a schematic diagram of the roaming result write-back judgment process of the present invention. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1

[0021] This invention provides an intelligent scheduling system for the operation and maintenance of wireless WLAN networks. Please refer to [link / reference]. Figures 1 to 3It includes a mobile path fragment construction module, a mobile connection intent generation module, a candidate connection evaluation module, a roaming pre-scheduling module, and a roaming result write-back module; The mobile path fragment construction module reads the access point ledger and mobile terminal roaming records in the wireless WLAN and generates a set of mobile path fragments; The mobile connection intent generation module reads the current mobile terminal's access information and combines it with the mobile path segment set to generate a mobile connection intent code; The candidate connection evaluation module generates candidate connection evaluation results based on mobile connection intent encoding; The roaming pre-scheduling module analyzes the candidate connection evaluation results, generates a roaming pre-scheduling contract, and executes roaming pre-scheduling according to the roaming pre-scheduling contract; The roaming result write-back module obtains the execution records of the roaming pre-scheduling and combines them with the execution results of the roaming pre-scheduling to generate path write-back results.

[0022] In this embodiment, the mobile path fragment construction module reads the wireless access point ledger and mobile terminal roaming records, and generates a set of mobile path fragments. This allows the intelligent scheduling system for wireless WLAN network operation and maintenance to move beyond post-event judgments based solely on single roaming records. Instead, it integrates wireless access point identifiers, spatial area identifiers, service set identifiers, and spatial adjacency relationships between wireless access points into the path fragment processing. As a result, the system can establish path correspondences between the currently serving wireless access point and the next wireless access point, laying the path foundation for subsequent mobile connection intent encoding, candidate connection evaluation, and roaming pre-scheduling. This addresses the problems of scattered roaming records and difficulty in directly accessing connection relationships by the scheduling system in existing technologies.

[0023] The system reads the current mobile terminal's access information by generating a mobile connection intent module. This access information is then combined with a set of mobile path segments. The system can map the mobile terminal's current service set identifier, current service radio access point, spatial region, direction of change of received signal strength, mobile terminal capabilities, and authentication result to the pre-formed mobile path segments to generate a mobile connection intent code. This process allows the system to obtain the combination relationship between movement direction, terminal capabilities, and authentication acceptance before the mobile terminal actually roams, overcoming the lag problem in existing technologies that only analyze roaming results after the mobile terminal has completed roaming.

[0024] The system generates a roaming pre-scheduling contract through the roaming pre-scheduling module and executes roaming pre-scheduling according to the contract. This allows the system to incorporate the current serving radio access point (SART) execution item, the first connecting SART execution item, and the authentication acceptance execution item into the same scheduling process, enabling these processes to be handled collaboratively under the same contract. The roaming result write-back module combines the execution records and results of the roaming pre-scheduling to generate path write-back results. This allows the system to write back the connection confirmation path segment, connection correction item, and authentication acceptance restriction item to the preceding processing stage, enabling subsequent mobile path segment sets and candidate connection evaluation results to reference the already occurred roaming results. This improves upon the problem in existing technologies where roaming results are difficult to reverse-correct scheduling strategies. Example 2

[0025] Please refer to Figure 2 Specifically: the mobile path fragment construction module includes a ledger roaming record registration unit and a mobile path fragment forming unit; The ledger roaming record registration unit is used to read the wireless access point ledger and the mobile terminal roaming record, and match the wireless access point identifier in the mobile terminal roaming record with the wireless access point identifier in the wireless access point ledger to generate the ledger roaming registration result, namely the ledger roaming registration item. The wireless access point ledger is derived from the management records of wireless access points. The wireless access point ledger includes wireless access point identifiers, spatial area identifiers, and spatial adjacency relationships between wireless access points. The mobile terminal roaming record is obtained from the mobile terminal roaming process record obtained from the radio access controller. The mobile terminal roaming record includes the mobile terminal identifier, service set identifier, radio access point identifier before roaming, and radio access point identifier after roaming. After reading a mobile terminal roaming record, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier before roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained; at the same time, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier after roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained. When both the pre-roaming and post-roaming wireless access point identifiers exist in the wireless access point register, and the two wireless access point identifiers correspond to the same spatial area identifier, and the two wireless access point identifiers have a spatial adjacency relationship in the wireless access point register, then the mobile terminal roaming record is converted into a register roaming registration item.

[0026] The mobile path segment forming unit uses the service set identifier and spatial region identifier in the ledger roaming registration item as the classification basis, and classifies ledger roaming registration items with the same service set identifier and the same spatial region identifier into the same segment forming group. Feature extraction is performed on the roaming registration items in the ledger, extracting the starting wireless access point identifier and the subsequent wireless access point identifier, and writing the starting wireless access point identifier and the subsequent wireless access point identifier into the mobile path segment in the segment forming group. Based on mobile path segments, continuous relationship processing is performed on multiple roaming registration items under the same mobile terminal identifier, the same service set identifier, and the same spatial region identifier; When the connecting radio access point identifier in one roaming registration entry is the same as the starting radio access point identifier in another roaming registration entry, and the two roaming registration entries have the same mobile terminal identifier, the same service set identifier, and the same spatial area identifier, the mobile path segments corresponding to the two roaming registration entries are grouped into the same continuous segment group. The moving path segments formed within each segment forming group and the continuous segment groups are merged into a moving path segment set.

[0027] In this embodiment, the roaming record registration unit maps the pre-roaming and post-roaming wireless access point identifiers in the mobile terminal roaming record to the wireless access point identifiers in the wireless access point register, and further obtains the corresponding spatial area identifiers and spatial adjacency relationships. This transforms the mobile terminal roaming record, which originally only represented one wireless access point handover, into a roaming registration item with spatial area constraints and adjacency relationship constraints. Through this processing, the system can exclude roaming records that do not correspond to the wireless access point register, are inconsistent across spatial areas, or lack spatial adjacency relationships, ensuring that subsequent mobile path segments have clear register and spatial origins.

[0028] The mobile path fragment forming unit uses service set identifiers and spatial area identifiers as classification criteria, assigning roaming registration items in the ledger to the corresponding fragment forming groups. This ensures that mobile path fragments are formed only within the range defined by the same service set identifier and the same spatial area identifier. This process prevents roaming records from different service set identifiers and different spatial areas from being mixed into the same mobile path fragment set. It can improve the problem in existing technologies where path relationships are generated solely based on wireless access points before and after roaming, which easily leads to mixed roaming relationships across different wireless network service ranges and different spatial areas. Example 3

[0029] Please refer to Figure 1 Specifically: the mobile call continuation intent generation module includes an access information access unit and a call continuation intent encoding and shaping unit; The access information access unit reads the current mobile terminal's access information and organizes the access information into the current access index item; The current access information for mobile terminals comes from mobile terminal online association information, wireless access point terminal association reporting information, and authentication result information. Using the current service wireless access point identifier in the mobile terminal's online association information as an index, the spatial area identifier corresponding to the current service wireless access point identifier is read from the wireless access point ledger, and a current access index item is generated.

[0030] The continuation intent encoding shaping unit combines the current access index item with the mobile path segment set to generate mobile continuation intent encoding; The current service radio access point identifier, service set identifier, and spatial region identifier in the current access index item are used as matching fields; the corresponding mobile path fragment is read from the mobile path fragment set. The connecting radio access point identifier in the corresponding mobile path segment is used as the connecting candidate radio access point identifier, and the connecting direction identifier is generated based on the starting radio access point identifier and the connecting radio access point identifier in the corresponding mobile path segment. Match the direction of change of received signal strength indication in the current access index entry with the connection direction identifier, and generate a movement direction field; Generate a terminal capability constraint field based on the mobile terminal capability identifier in the current access index item; Generate an authentication acceptance constraint field based on the authentication result identifier in the current access index item; The acquired mobile direction field, terminal capability constraint field, and authentication acceptance constraint field are integrated to generate the mobile connection intent code.

[0031] The candidate succession evaluation module includes a succession direction evaluation unit and a succession method evaluation unit; The connection direction evaluation unit reads the movement direction field in the movement connection intention code and generates a connection direction evaluation identifier based on the movement direction field, including a preceding connection identifier and a holding connection identifier; Perform continuity direction evaluation based on the identifier in the movement direction field: When the movement direction field is a path-same-direction identifier, a preceding continuation identifier is generated; When the movement direction field is a path deviation indicator, a keep-on-continuity indicator is generated.

[0032] The connection method evaluation unit reads the connection direction evaluation identifier, terminal capability constraint field, and authentication acceptance constraint field, and generates candidate connection evaluation results. The specific process is as follows: When the connection direction evaluation identifier is a pre-connection identifier, read the terminal capability constraint field and the authentication acceptance constraint field, and generate the roaming assistance mode identifier and the authentication acceptance mode identifier according to the two types of constraint fields; When the connection direction evaluation identifier is the maintain connection identifier, the maintain connection identifier will be written into the candidate connection evaluation result, and the roaming assistance method identifier and the authentication acceptance method identifier will be set as maintain connection processing items; The roaming assistance mode identifier is generated based on the terminal capability constraint field. When the terminal capability constraint field is the neighbor report constraint identifier, the roaming assistance mode identifier is written into the neighbor report processing item; When the terminal capability constraint field is the basic service set conversion management constraint identifier, the roaming assistance mode identifier is written into the basic service set conversion management processing item; When the terminal capability constraint field is the fast roaming constraint identifier, the roaming assistance mode identifier is written into the fast roaming processing item; When the terminal capability constraint field is a normal re-association constraint identifier, the roaming assistance mode identifier is written into the normal re-association processing item; The authentication acceptance method identifier is generated based on the authentication acceptance constraint field. When the authentication acceptance constraint field is the authentication synchronization constraint identifier, the authentication acceptance method identifier is written into the authentication synchronization processing item; When the authentication acceptance constraint field is a re-authentication constraint identifier, the authentication acceptance method identifier is written into the re-authentication processing item.

[0033] In this embodiment, the access information access unit organizes the access information of the current mobile terminal into a current access index item, and uses the current serving wireless access point identifier as an index to obtain the corresponding spatial area identifier from the wireless access point ledger. This allows the online association relationship of the current mobile terminal, the wireless access point terminal association reporting information, and the authentication result information to be unified into the same index structure. Through this processing, the system can map the wireless access point service relationship of the current mobile terminal to the spatial area relationship in the wireless access point ledger, improving the problem in the prior art where current access information and spatial path information are separated and difficult to directly participate in roaming scheduling.

[0034] In this embodiment, the connection intent encoding and shaping unit uses the current serving radio access point identifier, service set identifier, and spatial region identifier as matching fields to read the corresponding mobile path segment from the mobile path segment set, and uses the connection radio access point identifier in the corresponding mobile path segment as the connection candidate radio access point identifier. Through this processing, the system does not only judge based on the radio access point currently connected to the mobile terminal, but combines the current mobile terminal's access information with the already formed mobile path segment set, so that the connection candidate radio access point identifier comes from the path segment results under the same service set identifier, the same spatial region identifier, and the corresponding starting radio access point identifier, thus improving the problem of lack of path basis for candidate connection objects in the prior art.

[0035] In this embodiment, the candidate call continuation evaluation module reads the movement direction field, terminal capability constraint field, and authentication acceptance constraint field from the mobile call continuation intent encoding, and generates a call continuation direction evaluation identifier, a roaming assistance mode identifier, and an authentication acceptance mode identifier. The call continuation direction evaluation unit converts the path-in-the-direction identifier into a preceding call continuation identifier and converts the path deviation identifier into a maintain call continuation identifier; the call continuation mode evaluation unit generates a neighbor report processing item, a basic service set conversion management processing item, a fast roaming processing item, or a normal re-association processing item according to the terminal capability constraint field under the preceding call continuation identifier, and generates an authentication synchronization processing item or a re-authentication processing item according to the authentication acceptance constraint field. Example 4

[0036] Please refer to Figure 1 Specifically: the roaming pre-scheduling module includes a scheduling contract forming unit and a scheduling contract execution unit; The scheduling contract forming unit reads the succession direction evaluation identifier from the candidate succession evaluation results; When the current connection identifier is written into the candidate connection evaluation result, the connection candidate radio access point identifier is written into the first connection radio access point identifier. When the connection identifier is kept in the candidate connection evaluation result, the current serving radio access point identifier is written into the first connection radio access point identifier. Invoke the roaming assistance method identifier in the candidate connection evaluation results; When the roaming assistance mode is identified as a neighbor report processing item, a current service wireless access point execution item is generated; When the roaming assistance mode is identified as a basic service set conversion management processing item, a current service radio access point execution item is generated; When the roaming assistance mode is identified as a fast roaming processing item, the first connection wireless access point execution item is generated; When the roaming assistance mode is identified as a normal re-association processing item, the first connection wireless access point execution item is generated; When the roaming assistance mode is identified as a keep-connection processing item, the current service wireless access point execution item is generated; Read the certification acceptance method identifier from the candidate succession evaluation results; When the authentication acceptance method is identified as authentication synchronous processing item, an authentication acceptance execution item is generated; When the authentication acceptance method is identified as a re-authentication processing item, an authentication acceptance execution item is generated; The mobile terminal identifier, service set identifier, current serving radio access point identifier, first connecting radio access point identifier, current serving radio access point execution item, first connecting radio access point execution item, and authentication acceptance execution item are combined into a roaming pre-scheduling contract.

[0037] The scheduling contract execution unit executes roaming pre-scheduling according to the roaming pre-scheduling contract and generates a pre-scheduling execution record. The specific method is as follows: the execution item of the current service wireless access point is sent to the current service wireless access point. When the current serving wireless access point is performing a neighbor report processing item, the current serving wireless access point sends neighbor report information containing the identifier of the first connected wireless access point to the mobile terminal. When the current serving radio access point is performing a basic service set conversion management process, the current serving radio access point sends basic service set conversion management information containing the identifier of the first connected radio access point to the mobile terminal. When the current service wireless access point is performing a maintain connection processing item, the current service wireless access point maintains its association with the mobile terminal; Send the first connection wireless access point execution item to the first connection wireless access point; When the first connected wireless access point performs the fast roaming processing item, the first connected wireless access point receives the fast roaming reassociation request from the mobile terminal. When the first connection wireless access point performs a normal reassociation process, the first connection wireless access point receives the normal reassociation request from the mobile terminal. Process certification acceptance according to the certification acceptance execution items; When the authentication execution item is an authentication synchronous processing item, the wireless WLAN network operation and maintenance intelligent scheduling system will send the authentication result identifier of the mobile terminal under the service set identifier to the first connected wireless access point. When the authentication execution item is a re-authentication processing item, the first connection wireless access point executes the authentication processing corresponding to the service set identifier after receiving the mobile terminal re-association request; after processing, a pre-scheduling execution record is generated.

[0038] In this embodiment, the scheduling contract forming unit reads the connection direction evaluation identifier from the candidate connection evaluation result and determines the first connection radio access point identifier based on the preceding connection identifier or the hold connection identifier. This allows roaming pre-scheduling to no longer be directly triggered by a single radio signal change, but instead to form a scheduling object by combining the preceding mobile connection intent code and the candidate connection evaluation result. When the preceding connection identifier is written into the candidate connection evaluation result, the first connection radio access point identifier originates from the connection candidate radio access point identifier; when the hold connection identifier is written into the candidate connection evaluation result, the first connection radio access point identifier originates from the currently serving radio access point identifier.

[0039] In this embodiment, the scheduling contract forming unit generates an execution item for the current serving radio access point or the first connecting radio access point based on the roaming assistance mode identifier in the candidate connection evaluation results. This converts the neighbor report processing item, basic service set conversion management processing item, fast roaming processing item, normal reassociation processing item, and connection maintenance processing item into scheduling content executable by the radio access point. Through this process, the system can implement the terminal capability constraint results formed in the candidate connection evaluation stage onto the current serving radio access point or the first connecting radio access point, improving the problem of separation between mobile terminal capability identification results and radio access point execution actions in the prior art.

[0040] In this embodiment, the scheduling contract forming unit generates an authentication acceptance execution item based on the authentication acceptance method identifier, and combines the mobile terminal identifier, service set identifier, current serving radio access point identifier, first connecting radio access point identifier, current serving radio access point execution item, first connecting radio access point execution item, and authentication acceptance execution item into a roaming pre-scheduling contract. The scheduling contract execution unit executes roaming pre-scheduling according to the roaming pre-scheduling contract and generates a pre-scheduling execution record. The current serving radio access point sends neighbor report information, basic service set conversion management information, or maintains its association with the mobile terminal to the mobile terminal according to the current serving radio access point execution item; the first connecting radio access point receives a fast roaming re-association request or a normal re-association request according to the first connecting radio access point execution item; the wireless WLAN network operation and maintenance intelligent scheduling system sends the authentication result identifier to the first connecting radio access point according to the authentication acceptance execution item, or the first connecting radio access point performs the authentication processing corresponding to the service set identifier. Example 5

[0041] Please refer to Figure 3 Specifically: the roaming result write-back module includes a roaming result registration unit and a path write-back shaping unit; The roaming result registration unit reads the pre-scheduling execution record, the mobile terminal roaming record, and the authentication result information, and registers the three to generate roaming result registration items; First, read the mobile terminal identifier and service set identifier from the pre-scheduling execution record, and then read the mobile terminal identifier and service set identifier from the mobile terminal roaming record; If the mobile terminal identifier in the preceding scheduling execution record is consistent with the mobile terminal identifier in the mobile terminal roaming record, and the service set identifier in the preceding scheduling execution record is consistent with the service set identifier in the mobile terminal roaming record, the preceding scheduling execution record and the mobile terminal roaming record will be classified into the same roaming result registration item. Read the mobile terminal identifier and service set identifier from the authentication result information and match them with the mobile terminal identifier and service set identifier in the roaming result registration item; if the match is consistent, write the authentication result identifier from the authentication result information into the roaming result registration item. The path writeback shaping unit generates path writeback results based on the roaming result registration items, as follows: Read the first connected wireless access point identifier and the wireless access point identifier after roaming from the roaming result registration item, and perform connection object matching processing; When the roaming wireless access point identifier matches the first connected wireless access point identifier, read the current serving wireless access point identifier, the first connected wireless access point identifier, and the service set identifier from the roaming result registration item, and use the current serving wireless access point identifier as the starting wireless access point identifier and the first connected wireless access point identifier as the connected wireless access point identifier to generate a connection confirmation path segment. When the roaming wireless access point identifier is inconsistent with the first connection wireless access point identifier, read the current serving wireless access point identifier, the roaming wireless access point identifier and the service set identifier from the roaming result registration item, and write the roaming wireless access point identifier into the connection correction item. Read the authentication result identifier from the roaming result registration item and process the authentication result; When the authentication result is marked as successful, the result is written to the continuation confirmation path segment; When the authentication result is identified as re-authentication, the authentication acceptance method identifier, current serving radio access point identifier, first connecting radio access point identifier and service set identifier in the roaming result registration item are read, and an authentication acceptance restriction item is generated. The continuation confirmation path segment, continuation correction item, and authentication acceptance restriction item are combined into the path write-back result.

[0042] In this embodiment, the roaming result registration unit registers the pre-schedule execution record, mobile terminal roaming record, and authentication result information according to the mobile terminal identifier and service set identifier, so that the pre-roaming scheduling action, the actual roaming result of the mobile terminal, and the authentication processing result can be classified into the same roaming result registration item. Through this processing, the system can associate the first connection radio access point identifier, roaming assistance mode identifier, and authentication acceptance mode identifier formed during the scheduling contract execution phase with the pre-roaming radio access point identifier, post-roaming radio access point identifier, and authentication result identifier obtained by the radio access controller, thereby improving the problem in the prior art where scheduling records, roaming records, and authentication results are stored separately, making it difficult to uniformly judge the roaming scheduling result.

[0043] In this embodiment, the path write-back shaping unit reads the first connected wireless access point identifier and the roaming wireless access point identifier from the roaming result registration item, and performs connection object matching processing. When the roaming wireless access point identifier matches the first connected wireless access point identifier, the system uses the current serving wireless access point identifier as the starting wireless access point identifier and the first connected wireless access point identifier as the connected wireless access point identifier, generating a connection confirmation path segment.

[0044] When the roaming-after radio access point identifier differs from the first connected radio access point identifier, the path write-back shaping unit writes the roaming-after radio access point identifier into the connection correction item. Through this process, the system can record the inconsistency between the actual roaming radio access point of the mobile terminal and the first connected radio access point pointed to by the roaming pre-scheduling contract. This allows the subsequent mobile path segment construction module to reference the connection correction item when forming a mobile path segment set, improving the problem of lack of write-back correction when the candidate connection object differs from the actual roaming object in the prior art.

[0045] In this embodiment, the path write-back shaping unit further reads the authentication result identifier and generates authentication acceptance restrictions based on the identifier. When the authentication result identifier indicates successful authentication, the authentication result is written into the connection confirmation path segment; when the authentication result identifier indicates re-authentication, the authentication acceptance method identifier, the current serving radio access point identifier, the first connection radio access point identifier, and the service set identifier are read, and authentication acceptance restrictions are generated. Through this process, the system can bind the authentication acceptance result with the corresponding radio access point connection relationship, forming a path write-back result containing the connection confirmation path segment, connection correction items, and authentication acceptance restrictions. This provides a basis for the subsequent candidate connection evaluation module to adjust the authentication acceptance method, improving the problem of lack of correlation between authentication anomalies and path correction in the prior art.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A wireless WLAN network operation and maintenance intelligent scheduling system, characterized in that: It includes a mobile path fragment construction module, a mobile connection intent generation module, a candidate connection evaluation module, a roaming pre-scheduling module, and a roaming result write-back module; The mobile path fragment construction module reads the access point ledger and mobile terminal roaming records in the wireless WLAN and generates a set of mobile path fragments; The mobile connection intent generation module reads the current mobile terminal's access information and combines it with the mobile path segment set to generate a mobile connection intent code; The candidate connection evaluation module generates candidate connection evaluation results based on mobile connection intent encoding; The roaming pre-scheduling module analyzes the candidate connection evaluation results, generates a roaming pre-scheduling contract, and executes roaming pre-scheduling according to the roaming pre-scheduling contract; The roaming result write-back module obtains the execution records of the roaming pre-scheduling and combines them with the execution results of the roaming pre-scheduling to generate path write-back results.

2. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 1, characterized in that: The mobile path segment construction module includes a ledger roaming record registration unit and a mobile path segment forming unit; The ledger roaming record registration unit is used to read the wireless access point ledger and the mobile terminal roaming record, and match the wireless access point identifier in the mobile terminal roaming record with the wireless access point identifier in the wireless access point ledger to generate the ledger roaming registration result, namely the ledger roaming registration item. The wireless access point ledger is derived from the management records of wireless access points. The wireless access point ledger includes wireless access point identifiers, spatial area identifiers, and spatial adjacency relationships between wireless access points. The mobile terminal roaming record is obtained from the mobile terminal roaming process record obtained from the radio access controller. The mobile terminal roaming record includes the mobile terminal identifier, service set identifier, radio access point identifier before roaming, and radio access point identifier after roaming. After reading a mobile terminal roaming record, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier before roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained; at the same time, the corresponding wireless access point identifier is searched in the wireless access point ledger using the wireless access point identifier after roaming as an index, and the spatial area identifier corresponding to the wireless access point identifier is obtained. When both the pre-roaming and post-roaming wireless access point identifiers exist in the wireless access point register, and the two wireless access point identifiers correspond to the same spatial area identifier, and the two wireless access point identifiers have a spatial adjacency relationship in the wireless access point register, then the mobile terminal roaming record is converted into a register roaming registration item.

3. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 2, characterized in that: The mobile path segment forming unit uses the service set identifier and spatial region identifier in the ledger roaming registration item as the classification basis, and classifies ledger roaming registration items with the same service set identifier and the same spatial region identifier into the same segment forming group. Feature extraction is performed on the roaming registration items in the ledger, extracting the starting wireless access point identifier and the subsequent wireless access point identifier, and writing the starting wireless access point identifier and the subsequent wireless access point identifier into the mobile path segment in the segment forming group. Based on mobile path segments, continuous relationship processing is performed on multiple roaming registration items under the same mobile terminal identifier, the same service set identifier, and the same spatial region identifier; When the connecting radio access point identifier in one roaming registration entry is the same as the starting radio access point identifier in another roaming registration entry, and the two roaming registration entries have the same mobile terminal identifier, the same service set identifier, and the same spatial area identifier, the mobile path segments corresponding to the two roaming registration entries are grouped into the same continuous segment group. The moving path segments formed within each segment forming group and the continuous segment groups are merged into a moving path segment set.

4. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 3, characterized in that: The mobile call connection intent generation module includes an access information access unit and a call connection intent encoding and shaping unit; The access information access unit reads the current mobile terminal's access information and organizes the access information into the current access index item; The current access information for mobile terminals comes from mobile terminal online association information, wireless access point terminal association reporting information, and authentication result information. Using the current service wireless access point identifier in the mobile terminal's online association information as an index, the spatial area identifier corresponding to the current service wireless access point identifier is read from the wireless access point ledger, and a current access index item is generated.

5. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 4, characterized in that: The continuation intent encoding shaping unit combines the current access index item with the mobile path segment set to generate mobile continuation intent encoding; The current service radio access point identifier, service set identifier, and spatial region identifier in the current access index item are used as matching fields; the corresponding mobile path fragment is read from the mobile path fragment set. The connecting radio access point identifier in the corresponding mobile path segment is used as the connecting candidate radio access point identifier, and the connecting direction identifier is generated based on the starting radio access point identifier and the connecting radio access point identifier in the corresponding mobile path segment. Match the direction of change of received signal strength indication in the current access index entry with the connection direction identifier, and generate a movement direction field; Generate a terminal capability constraint field based on the mobile terminal capability identifier in the current access index item; Generate an authentication acceptance constraint field based on the authentication result identifier in the current access index item; The acquired mobile direction field, terminal capability constraint field, and authentication acceptance constraint field are integrated to generate the mobile connection intent code.

6. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 5, characterized in that: The candidate succession evaluation module includes a succession direction evaluation unit and a succession method evaluation unit; The connection direction evaluation unit reads the movement direction field in the movement connection intention code and generates a connection direction evaluation identifier based on the movement direction field, including a preceding connection identifier and a holding connection identifier; Perform continuity direction evaluation based on the identifier in the movement direction field: When the movement direction field is a path-same-direction identifier, a preceding continuation identifier is generated; When the movement direction field is a path deviation indicator, a keep-on-continuity indicator is generated.

7. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 6, characterized in that: The connection method evaluation unit reads the connection direction evaluation identifier, terminal capability constraint field, and authentication acceptance constraint field, and generates candidate connection evaluation results. The specific process is as follows: When the connection direction evaluation identifier is a pre-connection identifier, read the terminal capability constraint field and the authentication acceptance constraint field, and generate the roaming assistance mode identifier and the authentication acceptance mode identifier according to the two types of constraint fields; When the connection direction evaluation identifier is the maintain connection identifier, the maintain connection identifier will be written into the candidate connection evaluation result, and the roaming assistance method identifier and the authentication acceptance method identifier will be set as maintain connection processing items; The roaming assistance mode identifier is generated based on the terminal capability constraint field. When the terminal capability constraint field is the neighbor report constraint identifier, the roaming assistance mode identifier is written into the neighbor report processing item; When the terminal capability constraint field is the basic service set conversion management constraint identifier, the roaming assistance mode identifier is written into the basic service set conversion management processing item; When the terminal capability constraint field is the fast roaming constraint identifier, the roaming assistance mode identifier is written into the fast roaming processing item; When the terminal capability constraint field is a normal re-association constraint identifier, the roaming assistance mode identifier is written into the normal re-association processing item; The authentication acceptance method identifier is generated based on the authentication acceptance constraint field. When the authentication acceptance constraint field is the authentication synchronization constraint identifier, the authentication acceptance method identifier is written into the authentication synchronization processing item; When the authentication acceptance constraint field is a re-authentication constraint identifier, the authentication acceptance method identifier is written into the re-authentication processing item.

8. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 7, characterized in that: The roaming pre-scheduling module includes a scheduling contract forming unit and a scheduling contract execution unit; The scheduling contract forming unit reads the succession direction evaluation identifier from the candidate succession evaluation results; When the current connection identifier is written into the candidate connection evaluation result, the connection candidate radio access point identifier is written into the first connection radio access point identifier. When the connection identifier is kept in the candidate connection evaluation result, the current serving radio access point identifier is written into the first connection radio access point identifier. Invoke the roaming assistance method identifier in the candidate connection evaluation results; When the roaming assistance mode is identified as a neighbor report processing item, a current service wireless access point execution item is generated; When the roaming assistance mode is identified as a basic service set conversion management processing item, a current service radio access point execution item is generated; When the roaming assistance mode is identified as a fast roaming processing item, the first connection wireless access point execution item is generated; When the roaming assistance mode is identified as a normal re-association processing item, the first connection wireless access point execution item is generated; When the roaming assistance mode is identified as a keep-connection processing item, the current service wireless access point execution item is generated; Read the certification acceptance method identifier from the candidate succession evaluation results; When the authentication acceptance method is identified as authentication synchronous processing item, an authentication acceptance execution item is generated; When the authentication acceptance method is identified as a re-authentication processing item, an authentication acceptance execution item is generated; The mobile terminal identifier, service set identifier, current serving radio access point identifier, first connecting radio access point identifier, current serving radio access point execution item, first connecting radio access point execution item, and authentication acceptance execution item are combined into a roaming pre-scheduling contract.

9. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 8, characterized in that: The scheduling contract execution unit executes roaming pre-scheduling according to the roaming pre-scheduling contract and generates a pre-scheduling execution record. The specific method is as follows: the execution item of the current service wireless access point is sent to the current service wireless access point. When the current serving wireless access point is performing a neighbor report processing item, the current serving wireless access point sends neighbor report information containing the identifier of the first connected wireless access point to the mobile terminal. When the current serving radio access point is performing a basic service set conversion management process, the current serving radio access point sends basic service set conversion management information containing the identifier of the first connected radio access point to the mobile terminal. When the current service wireless access point is performing a maintain connection processing item, the current service wireless access point maintains its association with the mobile terminal; Send the first connection wireless access point execution item to the first connection wireless access point; When the first connected wireless access point performs the fast roaming processing item, the first connected wireless access point receives the fast roaming reassociation request from the mobile terminal. When the first connection wireless access point performs a normal reassociation process, the first connection wireless access point receives the normal reassociation request from the mobile terminal. Process certification acceptance according to the certification acceptance execution items; When the authentication execution item is an authentication synchronous processing item, the wireless WLAN network operation and maintenance intelligent scheduling system will send the authentication result identifier of the mobile terminal under the service set identifier to the first connected wireless access point. When the authentication acceptance execution item is a re-authentication processing item, the first connection wireless access point performs the authentication processing corresponding to the service set identifier after receiving the mobile terminal re-association request. After processing, a pre-scheduled execution record is generated.

10. The intelligent scheduling system for operation and maintenance of wireless WLAN networks according to claim 9, characterized in that: The roaming result write-back module includes a roaming result registration unit and a path write-back shaping unit; The roaming result registration unit reads the pre-scheduling execution record, the mobile terminal roaming record, and the authentication result information, and registers the three to generate roaming result registration items; First, read the mobile terminal identifier and service set identifier from the pre-scheduling execution record, and then read the mobile terminal identifier and service set identifier from the mobile terminal roaming record; If the mobile terminal identifier in the preceding scheduling execution record is consistent with the mobile terminal identifier in the mobile terminal roaming record, and the service set identifier in the preceding scheduling execution record is consistent with the service set identifier in the mobile terminal roaming record, the preceding scheduling execution record and the mobile terminal roaming record will be classified into the same roaming result registration item. Read the mobile terminal identifier and service set identifier from the authentication result information and match them with the mobile terminal identifier and service set identifier in the roaming result registration item; if the match is consistent, write the authentication result identifier from the authentication result information into the roaming result registration item. The path writeback shaping unit generates path writeback results based on the roaming result registration items, as follows: Read the first connected wireless access point identifier and the wireless access point identifier after roaming from the roaming result registration item, and perform connection object matching processing; When the roaming wireless access point identifier matches the first connected wireless access point identifier, read the current serving wireless access point identifier, the first connected wireless access point identifier, and the service set identifier from the roaming result registration item, and use the current serving wireless access point identifier as the starting wireless access point identifier and the first connected wireless access point identifier as the connected wireless access point identifier to generate a connection confirmation path segment. When the roaming wireless access point identifier is inconsistent with the first connection wireless access point identifier, read the current serving wireless access point identifier, the roaming wireless access point identifier and the service set identifier from the roaming result registration item, and write the roaming wireless access point identifier into the connection correction item. Read the authentication result identifier from the roaming result registration item and process the authentication result; When the authentication result is marked as successful, the result is written to the continuation confirmation path segment; When the authentication result is identified as re-authentication, the authentication acceptance method identifier, current serving radio access point identifier, first connecting radio access point identifier and service set identifier in the roaming result registration item are read, and an authentication acceptance restriction item is generated. The continuation confirmation path segment, continuation correction item, and authentication acceptance restriction item are combined into the path write-back result.

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