Wireless access control method and device applied to fttr networking

Abstract

The application provides a wireless access control method and device applied to FTTR networking, two wireless access devices are arranged in pairs on the same physical deployment site to form redundant source devices and mirror devices, the running state of the source device in the working process is synchronized to the mirror device in real time with the terminal context information, when the wireless access service exception of the source device is monitored, the mirror device is controlled to enable the wireless access service function, so that the mirror device takes over the communication session of all connected terminals, without the terminal reinitiating authentication, association or connection reconstruction, thereby realizing terminal non-aware access device switching, realizing high consistency of wireless signal service quality before and after switching, and avoiding the coverage blind area and performance degradation problem of the traditional power compensation scheme. The application is suitable for various IP network environments and various network topologies, and can be used in traditional copper cable access and wireless access scenes, and can also be used in optical fiber access scenes, including FTTR full optical access network.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a wireless access control method and apparatus for FTTR networking. Background Technology

[0002] When any access device, such as an AP (Access Point), used to provide wireless signals in a network architecture fails, wireless signals cannot be provided within the coverage area of ​​that access device, causing signal disconnection for various terminals connected to that access device and affecting the continuity of services.

[0003] To address this issue, related technologies typically involve the network controller temporarily increasing the transmission power of normally functioning neighboring devices around the faulty access device to expand their coverage area and attempt to cover the service area of ​​the faulty access device. However, in actual production environments, this method struggles to achieve signal coverage comparable to when the access device is functioning normally. For instance, in an FTTR (Fiber to the Room) all-optical network architecture, if signal coverage compensation is achieved by temporarily increasing the transmission power of adjacent optical APs, the attenuation of high-frequency signals due to room partitions will prevent terminals from obtaining reliable signal connections, thus failing to guarantee the required communication quality and efficiency for services. Summary of the Invention

[0004] In view of this, in order to solve the above-mentioned technical problems, this application provides a wireless access control method, apparatus, device and readable storage medium for FTTR networking.

[0005] Specifically, this application is implemented through the following technical solution: According to a first aspect of the embodiments of this application, a wireless access control method for use in an FTTR network is provided, which is applied to a wireless control device in the network; the network further includes at least one wireless access device pair, each wireless access device pair including a source device that enables wireless access service functions and a mirror device that disables wireless access service functions; the method includes: For any wireless access device pair, receive the wireless access service information reported by the source device, and synchronize the wireless access service information to the mirror device that belongs to the same wireless access device pair as the source device; If it is determined that the source device has a wireless access service anomaly, a service enable command is sent to the mirror device to enable the local wireless access service function based on the service enable command and provide wireless access service as a new source device. A service disable command is also sent to the source device to disable the enabled wireless access service function and act as a new mirror device.

[0006] In some embodiments, the wireless access service information includes at least: device configuration information that has changed during the normal operation of the source device; and roaming entry information corresponding to the terminal accessing the source device. The method further includes: receiving static configuration information for initialization settings reported by the source device, and synchronizing the static configuration information to the mirror device.

[0007] In some embodiments, after synchronizing the radio access service information to a mirror device belonging to the same radio access device pair as the source device, the method further includes: Within each preset heartbeat cycle, it is detected whether status information sent by the source device is received; the status information includes the values ​​of multiple preset monitoring indicators; If no signal is received, it is determined that the source device has a wireless access service anomaly. If received, based on the values ​​of each preset monitoring indicator included in the status information, it is determined whether the status of the source device meets any of the following abnormal judgment conditions. If so, it is determined that the source device has a wireless access service abnormality. The anomaly determination conditions include: the radio frequency signal strength of the source device is lower than a preset signal strength threshold; or, the health score of the source device is lower than a preset score threshold; the health score is determined based on the values ​​of each preset monitoring indicator included in the currently received status information.

[0008] In some embodiments, after sending a service enable command to the mirror device and before sending a service disable command to the source device with a wireless access service anomaly, if the wireless access service anomaly indicates a deterioration in the wireless access performance of the source device, the method further includes: A power reduction command is sent to the source device to reduce the signal transmission power according to the power reduction command, and a power increase command is sent to the new source device to increase the signal transmission power according to the power increase command; Send an access denial command to the source device so that the source device adjusts its access configuration according to the access denial command to reject the access of the new terminal; A terminal migration trigger instruction is sent to the source device, so that the source device sends a transmission control message to each connected terminal according to the terminal migration trigger instruction; the transmission control message is used to instruct each terminal to use the new source device as the access target; After a preset waiting period, a first recovery command is sent to the source device to restore the reduced transmission power to the original transmission power, and a second recovery command is sent to the new source device to restore the increased transmission power to the original transmission power.

[0009] In some embodiments, the method further includes: Obtain proximity information reported by each wireless access device in the network; the proximity information reported by any wireless access device includes: the physical coordinates of the wireless access device; or the Received Signal Strength Indicator (RSSI) detected by the wireless access device from each neighboring wireless access device; Based on the proximity information reported by each wireless access device, if any two wireless access devices are detected to meet any of the following proximity conditions, then the two wireless access devices are identified as a wireless access device pair; the proximity conditions include: The physical coordinate distance between the two wireless access devices is less than a preset deployment distance threshold at the same location, and this physical coordinate distance is less than the distance from either of the two wireless access devices to other wireless access devices in the network; or, The neighboring wireless access device with the strongest RSSI detected by any two wireless access devices is each other.

[0010] In some embodiments, defining two wireless access devices as a wireless access device pair specifically includes: The wireless access device that meets either of the two wireless access devices is designated as the source device, and an initial enable command is sent to the wireless access device that meets either of the source device conditions, so that the wireless access device that meets either of the source device conditions maintains its local wireless access service function in an enabled state based on the initial enable command. The other wireless access device among the two wireless access devices, excluding the source device, is used as a mirror device, and an initial shutdown command is sent to the other wireless access device so that the other wireless access device maintains its local wireless access service function in a disabled state based on the initial shutdown command. The source device conditions include: If neither of the two wireless access devices has a terminal connected, then the source device is the wireless access device indicated by the largest MAC address among the two wireless access devices, or the source device is the wireless access device indicated by the smallest delay among the two wireless access devices in response to probe messages from the wireless control device. If one of the two wireless access devices has a terminal access and the other wireless access device has no terminal access, then the source device is the wireless access device with the terminal access. If both wireless access devices have terminals connected, the source device is the wireless access device indicated by the largest number of connected terminals among the two wireless access devices.

[0011] In some embodiments, the method further includes: For any pair of wireless access devices, an upgrade command is sent to the mirror device so that the mirror device performs a firmware upgrade based on the upgrade command. After receiving the firmware upgrade completion response from the mirror device, a service enable command is sent to the upgraded mirror device to enable the wireless access service function and act as the new source device, and a service disable command is sent to the source device to disable the enabled wireless access service function and act as the new mirror device. An upgrade command is sent to the new image device so that the new image device can perform a firmware upgrade based on the upgrade command.

[0012] According to a second aspect of the embodiments of this application, a radio access control method for use in an FTTR network is provided, which is applied to any radio access device in any pair of radio access devices in the network, wherein the network includes a radio control device; each pair of radio access devices includes a source device that enables radio access service functions and a mirror device that disables radio access service functions; the method includes: If the wireless access service is enabled, then: When the wireless access service information changes, the wireless access service information is reported to the wireless control device; if a service shutdown command is received from the wireless control device, the enabled wireless access service function is disabled to act as a new mirror device; or, If the wireless access service is disabled, then: The device receives wireless access service information synchronized by the wireless control device and updates the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, the device enables the wireless access service function to provide wireless access service as a new source device.

[0013] In some embodiments, if the wireless access service function is enabled, the method further includes: The status information is sent to the wireless control device; the status information includes the values ​​of multiple preset monitoring indicators.

[0014] In some embodiments, if the wireless access service function is enabled, the method further includes: If a power reduction command is received from the wireless control device, then the transmitter power is reduced. If an access denial command is received from the wireless control device, the access configuration is adjusted to reject the access of new terminals; If a terminal migration trigger command is received from the wireless control device, a transmission control message is sent to each connected terminal; the transmission control message is used to instruct each terminal to use the new source device indicated by the terminal migration trigger command as the access target. If a first recovery command is received from the wireless control device, the reduced transmission power will be restored to the original transmission power.

[0015] In some embodiments, after enabling the wireless access service function to provide wireless access service as a new source device, the method further includes: If a power increase command is received from the wireless control device, its own transmission power is increased; If a second recovery command is received from the wireless control device, the increased transmission power will be restored to the original transmission power.

[0016] In some embodiments, if the wireless access service function is disabled, the method further includes: If an upgrade command is received from the wireless control device, the firmware of this device is upgraded based on the upgrade firmware information carried in the upgrade command.

[0017] According to a third aspect of the embodiments of this application, a wireless access control device for use in an FTTR network is provided, which is applied to a wireless control device in the network; the network further includes at least one wireless access device pair, each wireless access device pair including a source device that enables wireless access service functions and a mirror device that disables wireless access service functions; the device includes: The synchronization module is configured to receive radio access service information reported by the source device for any radio access device pair, and synchronize the radio access service information to the mirror device that belongs to the same radio access device pair as the source device; The service exception handling module is configured to, if it is determined that the source device has a wireless access service exception, send a service enable command to the mirror device so that the mirror device enables the local wireless access service function based on the service enable command and provides wireless access service as a new source device; and send a service disable command to the source device so that the source device disables the enabled wireless access service function and acts as a new mirror device.

[0018] In some embodiments, the wireless access service information includes at least: device configuration information that changes during the normal operation of the source device; and roaming entry information corresponding to the terminal accessing the source device; the apparatus further includes a static configuration synchronization module configured to: Receive the static configuration information of the initialization settings reported by the source device, and synchronize the static configuration information to the mirror device.

[0019] In some embodiments, the device further includes a monitoring module configured to: Within each preset heartbeat cycle, it is detected whether status information sent by the source device is received; the status information includes the values ​​of multiple preset monitoring indicators; If no signal is received, it is determined that the source device has a wireless access service anomaly. If received, based on the values ​​of each preset monitoring indicator included in the status information, it is determined whether the status of the source device meets any of the following abnormal judgment conditions. If so, it is determined that the source device has a wireless access service abnormality. The anomaly determination conditions include: the radio frequency signal strength of the source device is lower than a preset signal strength threshold; or, the health score of the source device is lower than a preset score threshold; the health score is determined based on the values ​​of each preset monitoring indicator included in the currently received status information.

[0020] In some embodiments, after sending a service enable command to the mirror device and before sending a service disable command to the source device with a wireless access service anomaly, if the wireless access service anomaly indicates a deterioration in the wireless access performance of the source device, the service anomaly handling module further includes a power adjustment and terminal migration module, configured as follows: A power reduction command is sent to the source device to reduce the signal transmission power according to the power reduction command, and a power increase command is sent to the new source device to increase the signal transmission power according to the power increase command; Send an access denial command to the source device so that the source device adjusts its access configuration according to the access denial command to reject the access of the new terminal; A terminal migration trigger instruction is sent to the source device, so that the source device sends a transmission control message to each connected terminal according to the terminal migration trigger instruction; the transmission control message is used to instruct each terminal to use the new source device as the access target; After a preset waiting period, a first recovery command is sent to the source device to restore the reduced transmission power to the original transmission power, and a second recovery command is sent to the new source device to restore the increased transmission power to the original transmission power.

[0021] In some embodiments, the apparatus further includes a wireless access device pair determination module, configured to: The proximity information acquisition module is configured to acquire proximity information reported by each wireless access device in the network; the proximity information reported by any wireless access device includes: the physical coordinates of the wireless access device; or the received signal strength indication (RSSI) detected by the wireless access device from each neighboring wireless access device. The proximity detection module is configured to, based on the proximity information reported by each wireless access device, determine two wireless access devices as a wireless access device pair if any two wireless access devices are detected to meet any of the following proximity conditions; the proximity conditions include: The physical coordinate distance between the two wireless access devices is less than a preset deployment distance threshold at the same location, and this physical coordinate distance is less than the distance from either of the two wireless access devices to other wireless access devices in the network; or, The neighboring wireless access device with the strongest RSSI detected by any two wireless access devices is each other.

[0022] In some embodiments, when the proximity condition detection module is configured to identify two wireless access devices as a wireless access device pair, it specifically includes: The enabling module is configured to use the wireless access device that meets the conditions of either of the two wireless access devices as the source device, and send an initial enabling command to the wireless access device that meets the conditions of either source device, so that the wireless access device that meets the conditions of either source device maintains the local wireless access service function in an enabled state based on the initial enabling command. The shutdown module is configured to treat the other wireless access device (excluding the source device) as a mirror device and send an initial shutdown command to the other wireless access device so that the other wireless access device maintains its local wireless access service function in a disabled state based on the initial shutdown command. The source device conditions include: If neither of the two wireless access devices has a terminal connected, then the source device is the wireless access device indicated by the largest MAC address among the two wireless access devices, or the source device is the wireless access device indicated by the smallest delay among the two wireless access devices in response to probe messages from the wireless control device. If one of the two wireless access devices has a terminal access and the other wireless access device has no terminal access, then the source device is the wireless access device with the terminal access. If both wireless access devices have terminals connected, the source device is the wireless access device indicated by the largest number of connected terminals among the two wireless access devices.

[0023] In some embodiments, the apparatus further includes a device upgrade module configured to: For any pair of wireless access devices, an upgrade command is sent to the mirror device so that the mirror device performs a firmware upgrade based on the upgrade command. After receiving the firmware upgrade completion response from the mirror device, a service enable command is sent to the upgraded mirror device to enable the wireless access service function and act as the new source device, and a service disable command is sent to the source device to disable the enabled wireless access service function and act as the new mirror device. An upgrade command is sent to the new image device so that the new image device can perform a firmware upgrade based on the upgrade command.

[0024] According to a fourth aspect of the embodiments of this application, a radio access control device for use in an FTTR network is provided, which is applied to any radio access device in any pair of radio access devices in the network, the network including a radio control device; each pair of radio access devices includes a source device that enables radio access service functions and a mirror device that disables radio access service functions; the device includes: The source device working module is configured to, if the wireless access service function is enabled, then: report the wireless access service information to the wireless control device when the wireless access service information changes; if a service shutdown command is received from the wireless control device, shut down the enabled wireless access service function to act as a new mirror device. The mirror device's operating module is configured to, if the wireless access service is disabled: The device receives wireless access service information synchronized by the wireless control device and updates the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, the device enables the wireless access service function to provide wireless access service as a new source device.

[0025] In some embodiments, the source device working module further includes: The status information sending module is configured to send status information to the wireless control device; the status information includes the values ​​of multiple preset monitoring indicators.

[0026] In some embodiments, the source device working module further includes a first terminal migration module, configured to: If a power reduction command is received from the wireless control device, then the transmitter power is reduced. If an access denial command is received from the wireless control device, the access configuration is adjusted to reject the access of new terminals; If a terminal migration trigger command is received from the wireless control device, a transmission control message is sent to each connected terminal; the transmission control message is used to instruct each terminal to use the new source device indicated by the terminal migration trigger command as the access target. If a first recovery command is received from the wireless control device, the reduced transmission power will be restored to the original transmission power.

[0027] In some embodiments, the mirror device working module further includes a second terminal migration module, configured to: After enabling the wireless access service function to provide wireless access service as a new source device, if a power increase command is received from the wireless control device, the device increases its own transmission power; if a second recovery command is received from the wireless control device, the device restores the increased transmission power to the transmission power before the increase.

[0028] In some embodiments, the mirror device working module further includes: The device upgrade module is configured to perform a firmware upgrade of the device based on the upgrade firmware information carried in the upgrade command if it receives an upgrade command from the wireless control device.

[0029] According to a fifth aspect of the embodiments of this application, an electronic device is provided, the electronic device comprising: a memory and a processor; the memory being used to store a computer program; the processor being used to execute the above-described wireless access control method applied to FTTR networking by invoking the computer program.

[0030] According to a sixth aspect of the embodiments of this application, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the above-described wireless access control method applied to FTTR networking.

[0031] The technical solutions provided in this application embodiment may include the following beneficial effects: In the technical solution provided in this application, two wireless access devices are deployed in pairs at physical deployment points to form a redundant pair of source and mirror devices. All wireless access service information during normal operation of the source device is synchronized to the mirror device in real time. When the wireless control device detects that the source device has an abnormal wireless access service, since the mirror device has fully synchronized the original source device's operating status and terminal context information, it can immediately control the mirror device to enable the wireless access service function. This allows the mirror device to seamlessly take over the communication sessions of all connected terminals without the need for the terminal to re-initiate authentication, association, key negotiation, or IP address reconstruction, thus achieving seamless switching of access devices for the terminal. Attached Figure Description

[0032] Figure 1A This is a system architecture diagram illustrating an exemplary embodiment of this application; Figure 1B This is a schematic flowchart illustrating a wireless access control method applied to FTTR networking, as shown in an exemplary embodiment of this application. Figure 1C This is an exemplary embodiment of the present application illustrating an orderly terminal migration and handover process to a service quality degradation scenario; Figure 2A This is a flowchart illustrating the steps of upgrading a wireless access device while maintaining continuity of wireless access service, as shown in an exemplary embodiment of this application. Figure 2B This is a schematic diagram illustrating an exemplary embodiment of the present application of a wireless access device upgrade; Figure 3 This is a schematic diagram of the structure of a wireless access control device applied to FTTR networking, as shown in an exemplary embodiment of this application; Figure 4 This is a schematic diagram illustrating the structure of another wireless access control device applied to FTTR networking, as shown in an exemplary embodiment of this application; Figure 5 This is a hardware schematic diagram of an electronic device illustrated in an exemplary embodiment of this application. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another.

[0034] In communication networking, when an access device, such as an AP or an optical AP deployed in various rooms in an FTTR network, fails, the wireless signal within the coverage area of ​​the access device will be lost, causing various terminals connected to the access device, such as AGVs, barcode scanners, and industrial tablets, to go offline, affecting business continuity.

[0035] In related technologies, a common approach to address this problem is to use a supplementary method, which involves temporarily increasing the transmission power of normally functioning neighboring devices around the faulty access device to expand their signal coverage and attempt to cover the service area of ​​the faulty neighboring device.

[0036] However, this approach has obvious limitations: on the one hand, in complex industrial environments, due to environmental factors, the signal coverage of neighboring devices with increased transmission power is difficult to achieve the same effect as the original access devices when they are working normally, and the communication quality and efficiency required by the service cannot be guaranteed; on the other hand, neighboring devices need to take on additional terminal access tasks in the original fault area, which increases their load and may lead to a decrease in the performance of neighboring access devices, an increase in latency, or new congestion, affecting service efficiency.

[0037] For example, in an FTTR network, when a certain optical AP experiences a hardware failure or power outage, a wireless coverage hole will form in its service area. If coverage compensation is achieved by temporarily increasing the transmission power of adjacent optical APs, in typical FTTR application scenarios (such as multi-room homes, hotel rooms, and hospital wards), the room partitions severely attenuate high-frequency signals (such as 5 GHz / 6 GHz). Simply increasing the power is not enough to effectively penetrate the signal. As a result, even if the terminal is connected to a neighboring AP, it cannot obtain usable communication quality. This leads to problems such as uneven radio frequency coverage and deterioration of the signal-to-noise ratio in edge areas, which cannot meet the requirements of high-reliability services for communication quality and efficiency.

[0038] In view of this, this application provides a wireless access control method for FTTR networking, which forms a redundant pair of source and mirror devices by deploying two wireless access devices in pairs at the physical deployment point. Only the source device enables the wireless access service function to provide services externally, while the mirror device is in standby mode but continuously receives and synchronizes all wireless access service information from the source device.

[0039] When the wireless control device detects an anomaly in the wireless access service of the source device, the mirror device can enable the wireless access service function because it has fully synchronized the operating status and terminal context information of the original source device. This allows the mirror device to seamlessly take over the communication sessions of all connected terminals without requiring the terminals to re-initiate authentication, association, or re-establish connections. This achieves millisecond-level, terminal-unaware access device switching, ensuring high consistency in wireless signal coverage location, strength, and service quality before and after the switch. It effectively avoids coverage blind spots and performance degradation issues of traditional power compensation schemes, and also avoids the risk of overload of nearby devices, improving high availability and business continuity in industrial networking scenarios.

[0040] This method is applicable to various types of communication networks, including enterprise parks, smart factories, warehousing and logistics, hospitals, hotels, and home broadband, improving network fault tolerance and service reliability. While applicable to FTTR (Fiber to the Room) networks, it is not limited to this scenario. This method is also suitable for other wireless access scenarios, including enterprise-grade Wi-Fi, industrial IoT, wireless extension modules for traditional copper cable access equipment, and various IP network environments and topologies supporting the DFS band, demonstrating broad applicability and scalability.

[0041] For example, in a Wi-Fi network based on a centralized architecture, the wireless control device is a wireless controller (AC), and the wireless access device can consist of two physical access points (APs) deployed in the same area. One AP acts as the source device to provide services, and the other AP acts as a mirror device to synchronize the operating status of the source device in real time. When the source device experiences hardware failure, radio frequency abnormality, or service interruption, the AC controls the mirror device to immediately take over the service, ensuring that critical business equipment such as AGVs and barcode scanning terminals in the area remain online.

[0042] For example, in an FTTR (Fiber to the Room) all-optical networking scenario, the wireless control device can be the main gateway (or main optical modem), and the wireless access device pair can consist of two subordinate optical APs (such as two Wi-Fi 6 / 7 optical terminals) deployed in the same room. The main gateway acts as the control node, coordinating one optical AP to activate the wireless service as the source device, while the other acts as a mirror device to maintain synchronization with the source device's operating status. When optical link jitter, Wi-Fi module failure, or software anomaly is detected in the source device, the main gateway quickly switches to the mirror device to enable the wireless access service, achieving zero-interruption continuation of wireless service within the room. This approach ensures the independence and robustness of wireless coverage within a single room without relying on power compensation from devices in neighboring rooms, effectively optimizing local high availability, terminal roaming experience, and overall network stability in the FTTR networking environment.

[0043] Based on this, see Figure 1A The exemplary system architecture diagram illustrates a network that includes an AC and APs. Two APs are deployed at the same physical location (for example, the two APs shown in the diagram are considered to be at the same physical location if the distance between their deployment locations is less than 1 meter; this 1 meter is only an example). These two APs are referred to as the source AP (i.e., the source device) and the mirror AP (i.e., the mirror device). The source AP and the mirror AP constitute a wireless access device pair, which is managed by the AC (i.e., the wireless control device) in the network.

[0044] The source AP is configured to enable wireless access service and allow user configuration, meaning the source AP can provide wireless signals and modify its configuration information according to user configuration commands. The mirror AP is configured to disable wireless access service and disable user configuration, meaning the mirror AP is in standby mode, does not provide wireless signals, and users cannot modify its configuration information via configuration commands. The mirror AP's configuration information is kept consistent with the source AP in real time.

[0045] The AC in the network can monitor in real time whether there is a wireless access service anomaly in the source AP. This wireless access service anomaly includes any of the following situations, the difference being whether the terminal can still establish or maintain a basic wireless connection with the AP: (1) Wireless access service is completely interrupted. In this situation, the source AP completely loses its wireless service capability and cannot provide a valid wireless signal to any terminal. For the terminal, it cannot discover the source AP's SSID (Service Set Identifier) ​​and cannot establish a wireless connection with it. For example, the source AP may be unable to transmit a wireless signal due to reasons such as RF module hardware failure, wireless driver crash, power failure, or complete system failure. (2) Deterioration of wireless access performance In this scenario, the source AP's wireless radio frequency module still functions normally, continuously broadcasting signals and allowing terminals to associate. However, the wireless link quality is severely degraded, resulting in low communication efficiency and poor stability. Although the terminal can maintain its connection with the source AP, the actual user experience is significantly worse. For example, strong interference in the channel, a continuously lower received signal strength indicator than a preset threshold, frequent retransmission of data frames by the terminal, a significant decrease in the success rate of new terminal association, and a significant decrease in average throughput are all manifestations of degraded wireless access performance.

[0046] For example, if an access point (AP) in a conference room is operating on a congested 2.4 GHz band, surrounded by multiple Wi-Fi networks and numerous Bluetooth devices, and the laptops of the participants still show "connected" to the Wi-Fi, but the video conference frequently freezes, file uploads are extremely slow, and some new devices even repeatedly display "connection failed," this indicates a degradation in wireless access performance rather than a complete interruption of wireless service.

[0047] Furthermore, when the AC detects an anomaly in the wireless access service of the source AP, it triggers a wireless access control switchover process to control the mirror AP to enable the local wireless access service function, so as to continue to provide wireless access services to the various terminals originally served by the source AP.

[0048] Based on this, see Figure 1B The illustrated flowchart describes a wireless access control method applied to an FTTR network, where the method uses a wireless control device within the network as the executing entity. The network includes at least one pair of wireless access devices, each pair comprising a source device that enables wireless access services and a mirror device that disables wireless access services. The wireless control device manages each pair of wireless access devices in the network.

[0049] like Figure 1B As shown, with a wireless control device as the executing entity, the method may include at least the following steps: S101, for any wireless access device pair, receive the wireless access service information reported by the source device, and synchronize the wireless access service information to the mirror device that belongs to the same wireless access device pair as the source device; The wireless access service information includes at least: device configuration information that is dynamically changed during the normal operation of the source device; and roaming entry information corresponding to the wireless terminals accessing the source device.

[0050] Dynamically changing device configuration information refers to the operating parameters of the source device that are adjusted in real time during operation due to changes in the network environment or automated optimization mechanisms, affecting the actual behavior of the wireless service. For example, the dynamically changing device configuration information may include, but is not limited to: session states, load balancing parameters, temporary ACL rules, etc. generated during runtime; channel switching triggered by DFS (Dynamic Frequency Selection) radar events; transmit power, operating bandwidth, or channel number dynamically adjusted by the wireless resource management mechanism; and the status of radio frequency interfaces temporarily enabled / disabled based on load balancing or interference avoidance strategies.

[0051] The roaming entry information corresponding to the wireless terminal represents a set of context state data related to the terminal associated with the source AP. This data describes the context state of the terminal already connected to the source device in the network, supporting fast, seamless roaming and session continuity. It may include, but is not limited to: the terminal's MAC address, IP address, and associated timestamp; current authentication and key negotiation status; the identifier of the wireless access device that last successfully roamed; the terminal's signal strength history, supported rate sets, QoS policy identifier, session identifier, and session key cache information. Whenever a new terminal connects to the source device or the roaming entry information of a terminal already connected to the source device changes, the synchronization of the wireless terminal's roaming entry information is triggered.

[0052] The above two types of information can be synchronized from the source device to the mirror device in real time through AC devices or cloud management platforms, ensuring that the mirror device can seamlessly continue the operating status and terminal context of the source device when taking over wireless access services, thereby achieving high availability and business continuity.

[0053] The source device may also include static configuration information. This type of configuration information (such as SSID, security policies, VLAN division, QoS templates, etc.) is set at the initial stage of source device deployment and usually does not change frequently with the operating status. It belongs to the basic policy parameters determined in the network planning stage. Static configuration information is relatively stable, but may be updated due to network operation and maintenance needs such as security policy upgrades, service VLAN adjustments, or service quality optimizations.

[0054] To ensure that the mirror device has network service capabilities completely consistent with the source device when taking over services, the method further includes: before receiving the radio access service information reported by the source device, it can also receive the static configuration information of the initialization settings reported by the source device, and synchronize the static configuration information to the mirror device. When the static configuration information changes during the normal operation of the source device, the changed content in the static configuration information is incrementally synchronized to the mirror device to always keep the configuration state of the mirror device completely consistent with that of the source device.

[0055] Based on the real-time synchronization of the aforementioned wireless access service information, when the mirror device is activated as a new source device, it can directly identify and restore the communication sessions of all original terminals without the need for the terminals to re-initiate authentication, association, or key negotiation processes, nor is it necessary to rebuild the TCP / UDP connection, thereby achieving millisecond-level, zero-packet-loss, and terminal-unaware network switching.

[0056] The process of receiving the wireless access service information reported by the source device and synchronizing the wireless access service information to the mirror device can be achieved by the wireless control device monitoring whether the wireless access service information of the source device has changed; when a change is detected, a query request is initiated to the source device to obtain the updated wireless access service information, and the obtained wireless access service information is forwarded to the mirror device to complete the synchronization. Alternatively, after the source device detects a change in its wireless access service information locally, it proactively reports the changed wireless access service information to the wireless control device through a pre-established internal communication channel, and then the wireless control device sends the changed wireless access service information to the mirror device. Alternatively, a direct communication channel can be pre-established between the source device and the mirror device, such as an Ethernet link, backplane bus, or dedicated management VLAN. When the wireless access service information of the source device changes, the changed wireless access service information can be directly pushed to the mirror device through this direct communication channel without needing to go through the wireless control device.

[0057] The above synchronization methods can be flexibly selected according to the actual network architecture, equipment capabilities and performance requirements, and this application does not limit them.

[0058] S102, if it is determined that the source device has a wireless access service anomaly, a service enable command is sent to the mirror device so that the mirror device enables the local wireless access service function based on the service enable command and provides wireless access service as a new source device; and a service disable command is sent to the source device so that the source device disables the enabled wireless access service function and acts as a new mirror device.

[0059] A wireless access service anomaly indicates an unexpected situation where the source device, while providing wireless network services, experiences a failure that prevents terminals from accessing the network normally or degrades communication quality. This anomaly does not simply refer to a complete device crash; it can encompass a range of failure scenarios affecting user experience or service continuity, from degraded wireless access performance to complete service interruption. Specifically, wireless access service anomalies include, but are not limited to, complete service interruption and degraded wireless access performance.

[0060] During the operation of the source device, the wireless control device can continuously monitor the source device to assess in real time whether its wireless access service capability is normal. Specifically, within each preset heartbeat cycle, the wireless control device detects whether it receives status information sent by the source device; the status information includes the values ​​of multiple preset monitoring indicators, which may include, but are not limited to, at least one of the following: heartbeat status, RF module status, CPU utilization, memory usage, air interface packet loss rate, RF signal strength, and terminal association success rate.

[0061] If the status information is not received within one or more consecutive preset heartbeat cycles, it is determined that the source device communication link is interrupted or the device is disconnected, and it is determined that the source device has a wireless access service abnormality. If the status information is received within the current preset heartbeat cycle, the status of the source device can be determined based on the values ​​of the preset monitoring indicators included in the status information to determine whether the status of the source device meets any of the following abnormal judgment conditions. If any of the following abnormal judgment conditions are met, it is determined that the source device has a wireless access service abnormality. The abnormal judgment conditions may include, but are not limited to, one or more of the following, which can be flexibly configured based on the network environment and device performance: (1) the radio frequency signal strength of the source device is lower than a preset signal strength threshold; (2) or, the health score of the source device is lower than a preset score threshold; the health score is determined based on the values ​​of the preset monitoring indicators included in the currently received status information. For example, the health score can be obtained by configuring corresponding weights for different preset monitoring indicators and performing weighted calculations to quantitatively reflect the current wireless service capability and operational stability of the source device; or other intelligent evaluation mechanisms can be used, such as multi-condition logical judgment based on rule engines, training historical normal / abnormal status data using machine learning models, and outputting device health probability or abnormal risk scores in real time.

[0062] In this implementation step, when an anomaly is detected in the source device currently providing wireless access service, the wireless access service function of the mirror device in standby state is immediately activated, so that the mirror device replaces the source device with the wireless access service anomaly, becomes the new source device (i.e., the new source device), and continues to provide wireless access service; at the same time, the wireless access service function of the original source device with the wireless access service anomaly is turned off, so that its role is switched to the mirror device in the wireless access device pair, and the service anomaly recovery process is performed on the new mirror device (i.e., the new mirror device).

[0063] Once the wireless service anomaly of the source device is resolved, the device will continue to function as a mirror device and will not automatically revert to being the source device for providing wireless access services. This is to avoid network instability and service disruption caused by frequent switching of wireless access devices. Simultaneously, as the new mirror device, it will continuously receive wireless access service information synchronized from the new source device to ensure that the mirror device's operating status remains consistent with the source device.

[0064] The source device's wireless access service anomaly can be categorized into two scenarios: complete wireless access service interruption and degraded wireless access performance. Even with degraded performance, the source device still possesses basic wireless signal transmission capabilities, enabling it to execute control commands and send management frames to terminals. Therefore, when a wireless access service anomaly is determined to exist on the source device, after sending a service enable command to the mirror device to designate it as a new source device, and before sending a service disable command to the source device with the anomaly, if the anomaly indicates a degraded wireless access performance on the source device—meaning the source device still supports new terminal access even with an anomaly—see [reference needed]. Figure 1C The exemplary flowchart illustrates a terminal migration and handover process in a scenario of degraded wireless access performance. Before disabling the enabled wireless access service functions on the source device experiencing wireless access service anomalies, the following operations can be performed: S1021, a power reduction command is sent to the source device to reduce the signal transmission power according to the power reduction command, and a power increase command is sent to the new source device to increase the signal transmission power according to the power increase command; The purpose of this step is to control the source device with a wireless access service anomaly to reduce its transmit power from an initial value, and to control the new source device to increase its transmit power from an initial value. The initial transmit power settings for the two devices in a wireless access device pair can be the same. By temporarily adjusting the power, the signal of the new source device becomes more attractive within the original coverage area, guiding the terminal to preferentially select the new source device for association or roaming.

[0065] S1022, Send an access denial command to the source device so that the source device adjusts its access configuration according to the access denial command to reject the access of the new terminal; The purpose of this step is to proactively control the source device to stop accepting new wireless terminals after detecting a wireless access service anomaly, preventing more users from accessing a degraded or unreliable service node and thus avoiding further deterioration of the user experience. This is achieved by sending an access denial command to the source device experiencing the wireless access service anomaly, causing the source device to suspend responding to probe requests or association requests from new terminals.

[0066] S1023, a terminal migration trigger instruction is sent to the source device, so that the source device sends a transmission control message to each connected terminal according to the terminal migration trigger instruction; the transmission control message is used to instruct each terminal to use the new source device as the access target; The purpose of this step is to proactively guide the currently associated terminals to migrate in an orderly and rapid manner to a healthy new source device after confirming that the source device has an abnormal wireless access service, thereby achieving seamless service switching and minimizing user-perceived interruption.

[0067] Specifically, when the wireless control device determines that terminal migration is necessary, it sends a terminal migration trigger command to the abnormal source device. Upon receiving this command, the source device immediately broadcasts or unicasts a control message to all its connected online terminals. This control message can be based on standard or extended Wi-Fi management protocols, explicitly instructing the terminals to perform roaming operations and providing key access information for the new source device.

[0068] For example, the transmission control message may include an 802.11v BSS Transition Management Request, an 802.11k Beacon Report Response, or a custom handover guidance message, which clearly informs the terminal of the BSSID, channel, and priority of the new source device, prompting it to actively initiate fast roaming.

[0069] S1024, after a preset waiting time, a first recovery command is sent to the source device to restore the reduced transmission power to the transmission power before the reduction, and a second recovery command is sent to the new source device to restore the increased transmission power to the transmission power before the increase.

[0070] The preset waiting time is used to ensure that the connected terminal has sufficient time to complete the handover process to the new source device, including receiving the handover command, performing roaming scan, and access handover. The waiting time can be configured according to the actual network environment, terminal type and service sensitivity. For example, it can be set to 1 minute to achieve a balance between handover reliability and fault recovery efficiency.

[0071] Through the above steps, terminals can be smoothly migrated from degraded source devices to healthy mirror devices in an orderly and controllable manner without interrupting existing business operations. This improves the success rate of switching and user experience. For industrial IoT scenarios such as AGVs, industrial tablets, and barcode scanners, which have stringent requirements for connectivity continuity, low latency, and high reliability, this can bring better business continuity assurance, communication stability, and overall system availability.

[0072] In this embodiment, two wireless access devices are deployed in pairs at physical deployment points to form a redundant pair of source and mirror devices. When the wireless control device detects an anomaly in the wireless access service of the source device, since the mirror device has fully synchronized the operating status and terminal context information of the source device, it can control the mirror device to enable the wireless access service function. This allows the mirror device to seamlessly take over the communication sessions of all connected terminals without requiring the terminals to re-initiate authentication, association, or re-establish connections. This achieves millisecond-level, terminal-unaware access device switching, ensuring high consistency in wireless signal coverage location, strength, and service quality before and after the switch. It effectively avoids coverage blind spots and performance degradation problems of traditional power compensation schemes, and also avoids the risk of overload of nearby devices, improving high availability and service continuity in industrial networking scenarios.

[0073] In an FTTR networking environment, this embodiment deploys physically adjacent source-mirror optical APs (e.g., dual mounting points, diagonal ceilings, or redundant panel locations installed in the same room) within the same service area. During normal operation, only the source device provides services to the outside world; the mirror device is in standby mode, but it synchronizes all operating statuses of the source device and terminal context information in real time through the FTTR fiber optic backhaul link. When the source device experiences an abnormal control, the mirror device is immediately activated, allowing it to seamlessly take over the communication sessions of all connected terminals. The entire process does not require terminals to re-authenticate, associate, or rebuild connections, achieving seamless switching for terminals and thus improving the user communication experience of FTTR networking.

[0074] In the above embodiments, the physical deployment locations of the two devices in any wireless access device pair in the network meet a preset proximity condition. This preset proximity condition is used to limit the physical proximity of the source device and the mirror device in any wireless access device pair, such that when the mirror device is activated as a new source device after the source device malfunctions, its wireless signal coverage area highly overlaps with that of the original source device. This ensures that connected terminals can maintain a stable wireless connection without moving, avoiding signal blind spots, connection interruptions, or service quality degradation caused by handover.

[0075] Based on this, any wireless access device pair in the network can be determined in the following way: (1) The wireless control device obtains the proximity information reported by each wireless access device in the network; the proximity information reported by any wireless access device includes: the physical coordinates of the wireless access device; or the received signal strength indication (RSSI) detected by the wireless access device from each neighboring wireless access device; The physical coordinates of the wireless access device can be determined based on its relative position coordinates within the network as a reference frame. For example, during the deployment phase, its coordinates within the network can be obtained through manual input, Bluetooth beacon positioning, or triangulation based on known anchor APs.

[0076] The RSSI detected by the wireless access device from neighboring wireless access devices refers to the signal strength value of the other party measured by the device by listening to the management frames broadcast by the neighboring wireless access devices. The RSSI data reflects the spatial coupling relationship and interference potential between wireless access devices. For example, if AP_A detects an RSSI of -65dBm from neighbor AP_B and an RSSI of -82dBm from neighbor AP_C, it indicates that AP_B is relatively close to AP_A or there is strong radio frequency coupling, while AP_C is relatively far away or isolated by a wall.

[0077] (2) Based on the proximity information reported by each wireless access device, if the wireless access control device detects that any two wireless access devices meet any of the following proximity conditions, then the two wireless access devices are identified as a wireless access device pair; the proximity conditions include at least: ① The physical coordinate distance between two wireless access devices is less than the preset deployment distance threshold at the same location, and the physical coordinate distance is less than the distance from either of the two wireless access devices to other wireless access devices in the network; That is, the two access devices are the closest in physical distance to each other among all the access devices in the network.

[0078] ② Alternatively, the neighboring wireless access devices with the strongest RSSI detected by any two wireless access devices are each other.

[0079] That is, the neighboring wireless access device with the strongest RSSI detected by the first device is the second device, and the neighboring wireless access device with the strongest RSSI detected by the second device is the first device; the first device is one of the two wireless access devices, and the second device is the other device among the two wireless access devices besides the first device.

[0080] Furthermore, for wireless access devices in the network that do not meet any of the aforementioned proximity conditions, configuration commands or management interfaces can be manually issued by maintenance personnel to explicitly specify them as forming predefined wireless access device pairs with other specific wireless access devices by their names. This method is applicable to situations where automatic proximity discovery fails due to devices being deployed in signal isolation areas, or where there are special redundancy requirements in the network topology, and serves as a fallback strategy when the aforementioned proximity conditions fail.

[0081] Furthermore, for isolated wireless access devices that do not constitute a valid wireless access device pair (i.e., neither automatic proximity nor manual pairing), when a wireless access service anomaly occurs, the system can activate a signal compensation mechanism: the wireless control device coordinates with its geographically or logically nearest neighboring wireless access devices that have service capabilities to temporarily increase radio frequency transmission power or expand coverage, guiding affected terminals to roam to neighboring wireless access devices with enhanced coverage, thereby partially or completely making up for the service gap of the original wireless access device, alleviating user experience interruption, providing emergency coverage enhancement measures in edge scenarios lacking redundant pairing, and improving the robustness and disaster recovery capability of the overall wireless network.

[0082] Regarding the aforementioned proximity condition ①, if the physical coordinates of the wireless access device can be calculated, such as in IoT AP models with built-in Bluetooth, the physical coordinates can be calculated using wireless positioning technology. Therefore, the following algorithm can be used to detect whether two devices meet proximity condition ①: ① Sort all wireless access devices by horizontal and vertical axes respectively; ② Starting from any wireless access device 1 (x1, y1), traverse the network and find the wireless access device 2 (x2, y2) with the smallest difference from its x-coordinate, and the wireless access device 3 (x3, y3) with the closest y-coordinate distance to it. Then continue to filter all wireless access devices whose y-coordinate distance from wireless access device 1 is less than (y2-y1), and denoted as APList1, and all wireless access devices whose x-coordinate distance from wireless access device 1 is less than (x3-x1), and denoted as APList2. Take wireless access device 2, wireless access device 3, and all wireless access devices in AP List1 and AP List2 as candidate devices, and calculate the physical coordinate distance between wireless access device 1 and each candidate device. ③ If the physical coordinate distance between wireless access device 1 and all candidate devices is greater than the preset deployment distance threshold at the same location (e.g., 1 meter), then wireless access device 1 will be marked as a failed match.

[0083] ④ Among the candidate devices that meet the preset deployment distance threshold at the same location, select the wireless access device min1 with the shortest distance; ⑤ For wireless access device min1, calculate the wireless access device with the shortest surrounding distance according to the logic of steps ②-④ above. If the wireless access device is wireless access device 1, then it is determined that wireless access device 1 and wireless access device min1 meet the preset proximity condition and form a wireless access device pair. Otherwise, wireless access device 1 is marked as a failed match.

[0084] ⑥ If wireless access device 1 and wireless access device min1 meet the preset proximity condition, then for other access devices in the network other than wireless access device 1 and wireless access device min1, repeat the above process to form wireless access device pairs in the network.

[0085] ⑦ If a wireless access device is marked as a failed match, it can be pre-specified to form a wireless access device pair via a configuration command line. Alternatively, if a wireless access device pair cannot be determined, existing technologies can be used as a fallback strategy.

[0086] Regarding the aforementioned proximity condition ②, any wireless access device in the network can obtain the RSSI of neighboring wireless access devices through radio frequency scanning, and automatically match the wireless access devices with the strongest signal strength to each other as wireless access device pairs. The following algorithm can be used to detect whether two devices meet the proximity condition ②: ① Start traversing from any wireless access device 1, and select the wireless access device 2 with the strongest signal from the scanned neighbor information; ② Reverse query the scan results of wireless access device 2, select the wireless access device with the strongest channel strength from the scanned neighbor information. If it is wireless access device 1, then they are matched as a wireless access device pair; otherwise, wireless access device 1 is marked as a failed match.

[0087] ③ If wireless access device 1 and wireless access device 2 are matched as a wireless access device pair, then for other access devices in the network other than wireless access device 1 and wireless access device 2, the above process is repeated to form wireless access device pairs in the network.

[0088] ④ If a wireless access device is marked as a failed match, it can be pre-specified to form a wireless access device pair via a configuration command line. Alternatively, if a wireless access device pair cannot be determined, existing technologies can be used as a fallback strategy.

[0089] In any wireless access device pair described in this application, one device serves as the source device and the other as the mirror device. The source device has its wireless access service enabled, while the mirror device has its wireless access service disabled. Based on this, when a wireless access device detects that any two wireless access devices satisfy any proximity condition and determines them as a wireless access device pair, it can determine the source device and the mirror device from the two wireless access devices satisfying any proximity condition in the following manner: The wireless access device that meets either of the two wireless access devices is designated as the source device, and an initial enable command is sent to the wireless access device that meets either of the source device conditions, so that the wireless access device that meets either of the source device conditions maintains its local wireless access service function in an enabled state based on the initial enable command. The other wireless access device among the two wireless access devices, excluding the source device, is used as a mirror device, and an initial shutdown command is sent to the other wireless access device so that the other wireless access device maintains its local wireless access service function in a disabled state based on the initial shutdown command.

[0090] The source device conditions include: (1) If neither of the two wireless access devices has a terminal access, then the source device is the wireless access device indicated by the largest MAC address among the two wireless access devices, or the source device is the wireless access device indicated by the smallest delay among the two wireless access devices in response to probe messages from the wireless control device. For example, a wireless access device pair includes devices AP1_0 and AP1_1, neither of which has any terminal associations after initial power-on. It is known that: The MAC address of AP1_0 is 00:1A:2B:3C:4D:5E; The MAC address of AP1_1 is 00:1A:2B:3C:4D:6F; Since 00:1A:2B:3C:4D:6F>00:1A:2B:3C:4D:5E, AP1_1 with the larger MAC address can be used as the source device and its wireless access service function can be enabled, while AP1_0 can be used as a mirror device and enter standby mode.

[0091] Alternatively, the wireless control device can broadcast probe messages to AP1_0 and AP1_1. AP1_0 has a response delay of 2ms to the probe messages, while AP1_1 has a response delay of 5ms. In this case, AP1_0, which has a faster response, can be selected as the source device, while AP1_1 can enter standby mode as a mirror device.

[0092] (2) If one of the two wireless access devices has a terminal access and the other wireless access device has no terminal access, then the source device is the wireless access device with a terminal access. For example, in an FTTR home network, the main gateway manages a pair of optical access points (APs) (AP_1 and AP_2) deployed in the living room. After a system reboot, AP_1 already has a home tablet and smart TV connected, while AP_2 has no associated terminals. At this time, the wireless control device detects that only AP_1 has an active session, so it identifies AP_1 as the source device and continues to provide services; AP_2 is then configured as a mirror device and begins to synchronize the wireless access service information of AP_1, preparing for a possible failover of AP_1.

[0093] (3) If both wireless access devices have terminal access, the source device is the wireless access device indicated by the largest number of access terminals among the two wireless access devices.

[0094] For example, both redundant APs (AP_X and AP_Y) already have terminals connected: AP_X currently serves 8 AGV vehicles and 2 barcode scanners, with a CPU utilization of 75% and an air interface utilization of 68%; AP_Y only connects 3 handheld terminals, with a CPU utilization of 30% and an air interface utilization of 25%.

[0095] The wireless control device determines from the performance reporting data that AP_X has a larger number of access terminals and its workload is significantly higher than that of AP_Y. Therefore, AP_X is identified as the source device, and AP_Y is used as the mirror device to synchronize its status.

[0096] By using the above method and clear judgment rules, the roles of source and mirror devices can be automatically, fairly and efficiently determined between any two wireless access devices that meet the proximity condition. Devices with existing service load or better performance are given priority as source devices, avoiding unnecessary terminal migration and service interruption. No manual intervention is required, thus improving the level of automation.

[0097] After the roles are initialized, the wireless control device sends an initial enable command to the source device to ensure its wireless access service remains active. Simultaneously, it sends an initial disable command to the mirror device, ensuring its RF interface is powered on but does not broadcast the SSID or respond to probe requests; instead, it only synchronizes the source device's configuration, operating status, and terminal roaming context in the background. When the source device subsequently experiences a wireless access service failure, the mirror device can quickly take over the service, achieving millisecond-level failover, thereby improving the reliability, continuity, and user experience of the wireless network.

[0098] To better understand the device handover steps described in step S102 above, this embodiment provides an exemplary handover process from the perspective of two scenarios of wireless access service anomalies: wireless access service interruption and wireless access performance degradation.

[0099] (1) The wireless access service is completely interrupted, resulting in the terminal being unable to access the network. ① The mirror device enables the wireless access service function as a new source device: Activate the radio frequency of the mirror device, change the running status of the wireless access service enable configuration from off to enabled, and restore the user configuration entry so that the mirror device can modify its own configuration information based on the user's configuration instructions.

[0100] ②The source device is disabled for wireless access services and is used as a new mirror device. i. Without changing the user configuration, change the enabled status of the wireless service to disabled, and disable the user configuration entry point; ii. Attempt to collect equipment diagnostic information through automated diagnostic tools, report it to the operation and maintenance platform, obtain diagnostic results, and attempt to resolve the fault; iii. If the above steps can restore the device's wireless service capabilities and quality, then maintain the mirror device role; otherwise, directly restart the device. After the original AP restarts, keep the wireless access service function and user configuration disabled, and receive the configuration information and running status data (i.e., wireless access service information) synchronized from the new source device.

[0101] (2) The wireless access performance deteriorates, for example, the source device health score is lower than the threshold, but it can still provide a wireless signal. In this case, the terminal's wireless experience is poor: ① The mirror device enables the wireless access service function as a new source device: Activate the radio frequency of the mirror device, change the running status of the wireless access service enable configuration from off to enabled, and restore the user configuration entry so that the mirror device can modify its own configuration information based on the user's configuration instructions.

[0102] ② Guide the terminals already loaded on the source device that have wireless access service anomalies to connect to the new source device. i. Temporarily reduce the RF power of the source device (e.g., 3dB), and temporarily increase the RF power of the mirror device (adjustment range consistent with the source device, e.g., 3dB); ii. The source device prohibits new terminals from accessing the network, and at the same time, the source device sends a BSS Transition Management Request message in the 802.11v protocol to all loaded terminals, designating the new source device as the handover target; ③ After waiting for a period of time (e.g., 1 minute), forcibly disable the wireless access service function of the source device. i. Without changing the user configuration, change the enabled status of the wireless service to disabled, and disable the user configuration entry point; ii. Attempt to collect equipment diagnostic information through automated diagnostic tools, report it to the operation and maintenance platform, obtain diagnostic results, and attempt to resolve the fault; iii. If the above steps can restore the device's wireless service capabilities and quality, then maintain the mirror device role; otherwise, directly restart the device. After the original AP restarts, keep the wireless access service function and user configuration disabled, and receive the configuration information and running status data (i.e., wireless access service information) synchronized from the new source device.

[0103] In the above embodiments, differentiated handover strategies are adopted based on the specific type of wireless access service anomaly, improving the accuracy of fault recovery, the smoothness of terminal migration, and the efficiency of system resource utilization. In cases of degraded wireless access performance, proactive roaming is achieved by temporarily adjusting transmit power, prohibiting new terminal access, and actively sending 802.11v BSS Transition management messages to already connected terminals, thus ensuring uninterrupted service while enabling load balancing.

[0104] In some embodiments, for any of the above-described wireless access device pairs, in addition to supporting high-availability handover in fault scenarios, a device pair upgrade step may also be included to achieve software or firmware version updates with zero service interruption. See also Figure 2A An exemplary flowchart illustrates the steps for upgrading a wireless access device while maintaining continuity of wireless access service. This upgrade process may include the following steps: S201, For any pair of wireless access devices, an upgrade command is sent to the mirror device so that the mirror device performs a firmware upgrade based on the upgrade command; Firmware upgrade refers to updating the version of the embedded firmware inside the wireless access device. This firmware is a low-level control program embedded in the device hardware, such as upgrading the device boot driver or SSD controller firmware. Since the wireless access service function of the mirrored device is disabled and the mirrored device does not carry terminal services, its upgrade process will not affect the connection of existing network users. Therefore, the software / firmware upgrade of the mirrored device can be performed first.

[0105] S202, after receiving the firmware upgrade completion response sent by the mirror device, a service enable command is sent to the upgraded mirror device to enable the wireless access service function and act as the new source device, and a service disable command is sent to the source device to disable the enabled wireless access service function and act as the new mirror device. This step, after verifying that the service carrying capacity of the upgraded mirror device meets the preset standards, disables the wireless access service function already enabled by the source device in the wireless access device pair, so as to use the source device as the new mirror device, and enables the wireless access service function of the upgraded mirror device so as to use the mirror device as the new source device to provide wireless access service.

[0106] Verifying that the upgraded mirror device's service carrying capacity meets preset standards may include, but is not limited to, passing the startup self-test, normal radio frequency function, availability of authentication services, and meeting performance benchmark test standards.

[0107] By enabling the wireless access service of the upgraded mirror device while disabling the wireless access service of the source device in the same wireless access device pair, uninterrupted wireless access service is maintained, and the role switch from source device to mirror device is completed. In this state, the source device to be upgraded no longer needs to provide wireless access service, allowing for upgrades without affecting existing network user connections.

[0108] To better understand the device's upgrade process, such as Figure 2B The diagram illustrates a zero-disruption upgrade process for wireless access devices based on a source-mirror AP. This embodiment uses an AP pair managed by an AC (wireless controller) as an example to illustrate how to upgrade the software / firmware version of the AP device while maintaining the continuity of wireless access services.

[0109] (1) Initial stage: A pair of APs deployed at the same physical location constitutes a redundant pair: the source AP runs v1.0 firmware, the wireless access service function is enabled, and it is currently carrying service traffic; the mirror AP runs v1.0 firmware, the wireless access service function is disabled, and it does not provide wireless access service. AC coordinates the working status of the equipment through an intelligent monitoring and switching control module.

[0110] (2) Upgrading the mirror device stage: AC pushes v2.0 firmware to the mirror AP and triggers it to perform an upgrade operation; During the upgrade process, the mirrored AP maintains its management connection with the AC, but does not participate in service forwarding; After the upgrade is complete, the mirror AP restarts and loads the v2.0 firmware.

[0111] (3) Role reversal stage: AC detected that the mirrored AP has been successfully upgraded to version v2.0 and verified that its RF function, authentication capability, performance indicators and other aspects meet the preset standards. Subsequently, the AC sends a command to the source AP to disable its wireless access service function (i.e., disable radio frequency and user access), and will act as the new mirror AP; At the same time, the AC enables the wireless access service function of the upgraded mirrored AP, using it as the new source AP to start providing wireless access services to the terminal; at this time, the terminal user does not need to be aware of any changes, and the service traffic is smoothly migrated to the new source AP.

[0112] (4) Completion phase - iteratively upgrade new image devices AC pushes the v2.0 firmware to the new image AP again and performs the upgrade operation; After the upgrade, both APs are running v2.0 firmware, and the system maintains a source-image dual-active redundancy architecture.

[0113] Through the above process, a full upgrade of a pair of wireless access devices can be completed without affecting the online services of the terminal. Only one device is upgraded at a time, while the other continues to provide services. This effectively avoids problems such as connection interruption and session loss caused by device restart or service suspension in traditional upgrade methods. For scenarios such as industrial networks, data centers, and hospitals that require long-term stable operation, it can better maintain network operation and maintenance efficiency and business continuity.

[0114] Next, this embodiment describes the wireless access control method for FTTR networking provided in this application from the perspective of wireless access devices in a network. This method is applied to any wireless access device in any pair of wireless access devices in the network; any pair of wireless access devices is managed by a wireless control device in the network; the physical deployment locations of the two devices in the pair of wireless access devices satisfy the aforementioned proximity condition, which can be specifically described in the preceding embodiments, and will not be repeated here. The method may include at least the following steps ab: a. If the wireless access service function is enabled, then: When the wireless access service information changes, the wireless access service information is reported to the wireless control device; if a service shutdown command is received from the wireless control device, the enabled wireless access service function is shut down to serve as a new mirror device. Corresponding to the aforementioned embodiments, if the wireless access service function of the wireless access device is enabled, it indicates that the wireless access device is currently configured as a source device. If the wireless access service function is enabled, status information can be sent to the wireless control device, so that the wireless control device can monitor whether there is a wireless access service anomaly in the source device based on the status information; the status information includes the values ​​of multiple preset monitoring indicators.

[0115] When the wireless access service function of this device is enabled, if a power reduction instruction is received from the wireless control device, the device reduces its own transmission power; if an access prohibition instruction is received from the wireless control device, the device adjusts the access configuration to reject the access of new terminals; if a terminal migration trigger instruction is received from the wireless control device, a transmission control message is sent to each connected terminal to guide each connected terminal to roam to the new source device; the transmission control message is used to instruct each terminal to use the new source device indicated by the terminal migration trigger instruction as the access target; if a first recovery instruction is received from the wireless control device, the reduced transmission power is restored to the original transmission power.

[0116] b. If the wireless access service is disabled, then: The device receives wireless access service information synchronized by the wireless control device and updates the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, the device enables the wireless access service function to provide wireless access service as a new source device.

[0117] If the wireless access service function is disabled, it indicates that this device is configured as a mirror device. After enabling the wireless access service function to provide wireless access service as a new source device, if it receives a power increase command from the wireless control device, it increases its own transmission power to guide the terminals accessing the source device with wireless access service abnormality to roam to this device; if it receives a second recovery command from the wireless control device, it restores the increased transmission power to the transmission power before the increase.

[0118] This wireless access device supports uninterrupted device upgrade services. Specifically, when the wireless control device in the network is configured as a mirror device (i.e., the wireless access service function is disabled), if an upgrade command is received from the wireless control device, the device will perform a firmware upgrade based on the upgrade firmware information carried in the upgrade command. Furthermore, after the upgrade is completed, the device can report the upgrade status and service carrying capacity verification results to the wireless control device.

[0119] Corresponding to the aforementioned embodiments of the radio access control method applied to FTTR networking, see [link to relevant documentation]. Figure 3 As shown, this application also provides an embodiment of a wireless access control device applied to an FTTR network, which is applied to a wireless control device in the network; the network further includes at least one wireless access device pair, each wireless access device pair including a source device that enables the wireless access service function and a mirror device that disables the wireless access service function; the device includes: Synchronization module 301 is configured to receive wireless access service information reported by the source device for any wireless access device pair, and synchronize the wireless access service information to the mirror device that belongs to the same wireless access device pair as the source device. The service exception handling module 302 is configured to, if it is determined that the source device has a wireless access service exception, send a service enable command to the mirror device so that the mirror device enables the local wireless access service function based on the service enable command and provides wireless access service as a new source device; and send a service disable command to the source device so that the source device disables the enabled wireless access service function and acts as a new mirror device.

[0120] In some embodiments, the wireless access service information includes at least: device configuration information that changes during the normal operation of the source device; and roaming entry information corresponding to the terminal accessing the source device; the apparatus further includes a static configuration synchronization module configured to: Receive the static configuration information of the initialization settings reported by the source device, and synchronize the static configuration information to the mirror device.

[0121] In some embodiments, the device further includes a monitoring module configured to: Within each preset heartbeat cycle, it is detected whether status information sent by the source device is received; the status information includes the values ​​of multiple preset monitoring indicators; If no signal is received, it is determined that the source device has a wireless access service anomaly. If received, based on the values ​​of each preset monitoring indicator included in the status information, it is determined whether the status of the source device meets any of the following abnormal judgment conditions. If so, it is determined that the source device has a wireless access service abnormality. The anomaly determination conditions include: the radio frequency signal strength of the source device is lower than a preset signal strength threshold; or, the health score of the source device is lower than a preset score threshold; the health score is determined based on the values ​​of each preset monitoring indicator included in the currently received status information.

[0122] In some embodiments, after sending a service enable command to the mirror device and before sending a service disable command to the source device with a wireless access service anomaly, if the wireless access service anomaly indicates a deterioration in the wireless access performance of the source device, the service anomaly handling module further includes a power adjustment and terminal migration module, configured as follows: A power reduction command is sent to the source device to reduce the signal transmission power according to the power reduction command, and a power increase command is sent to the new source device to increase the signal transmission power according to the power increase command; Send an access denial command to the source device so that the source device adjusts its access configuration according to the access denial command to reject the access of the new terminal; A terminal migration trigger instruction is sent to the source device, so that the source device sends a transmission control message to each connected terminal according to the terminal migration trigger instruction; the transmission control message is used to instruct each terminal to use the new source device as the access target; After a preset waiting period, a first recovery command is sent to the source device to restore the reduced transmission power to the original transmission power, and a second recovery command is sent to the new source device to restore the increased transmission power to the original transmission power.

[0123] In some embodiments, the apparatus further includes a wireless access device pair determination module, configured to: The proximity information acquisition module is configured to acquire proximity information reported by each wireless access device in the network; the proximity information reported by any wireless access device includes: the physical coordinates of the wireless access device; or the received signal strength indication (RSSI) detected by the wireless access device from each neighboring wireless access device. The proximity detection module is configured to, based on the proximity information reported by each wireless access device, determine two wireless access devices as a wireless access device pair if any two wireless access devices are detected to meet any of the following proximity conditions; the proximity conditions include: The physical coordinate distance between the two wireless access devices is less than a preset deployment distance threshold at the same location, and this physical coordinate distance is less than the distance from either of the two wireless access devices to other wireless access devices in the network; or, The neighboring wireless access device with the strongest RSSI detected by any two wireless access devices is each other.

[0124] In some embodiments, when the proximity condition detection module is configured to identify two wireless access devices as a wireless access device pair, it specifically includes: The enabling module is configured to use the wireless access device that meets the conditions of either of the two wireless access devices as the source device, and send an initial enabling command to the wireless access device that meets the conditions of either source device, so that the wireless access device that meets the conditions of either source device maintains the local wireless access service function in an enabled state based on the initial enabling command. The shutdown module is configured to treat the other wireless access device (excluding the source device) as a mirror device and send an initial shutdown command to the other wireless access device so that the other wireless access device maintains its local wireless access service function in a disabled state based on the initial shutdown command. The source device conditions include: If neither of the two wireless access devices has a terminal connected, then the source device is the wireless access device indicated by the largest MAC address among the two wireless access devices, or the source device is the wireless access device indicated by the smallest delay among the two wireless access devices in response to probe messages from the wireless control device. If one of the two wireless access devices has a terminal access and the other wireless access device has no terminal access, then the source device is the wireless access device with the terminal access. If both wireless access devices have terminals connected, the source device is the wireless access device indicated by the largest number of connected terminals among the two wireless access devices.

[0125] In some embodiments, the apparatus further includes a device upgrade module configured to: For any pair of wireless access devices, an upgrade command is sent to the mirror device so that the mirror device performs a firmware upgrade based on the upgrade command. After receiving the firmware upgrade completion response from the mirror device, a service enable command is sent to the upgraded mirror device to enable the wireless access service function and act as the new source device, and a service disable command is sent to the source device to disable the enabled wireless access service function and act as the new mirror device. An upgrade command is sent to the new image device so that the new image device can perform a firmware upgrade based on the upgrade command.

[0126] This application also provides another embodiment of a wireless access control device applied to FTTR networking, see [link to embodiment]. Figure 4 As shown, the device is applied to any wireless access device in any pair of wireless access devices in a network, the network including a wireless control device; each wireless access device pair includes a source device that enables the wireless access service function and a mirror device that disables the wireless access service function; the device includes: The source device working module 401 is configured to, if the wireless access service function is enabled, then: when the wireless access service information changes, report the wireless access service information to the wireless control device; if a service shutdown command is received from the wireless control device, shut down the enabled wireless access service function to serve as a new mirror device. The mirror device working module 402 is configured to, if the wireless access service function is in a disabled state,: receive wireless access service information synchronized by the wireless control device and update the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, enable the wireless access service function to provide wireless access service as a new source device.

[0127] In some embodiments, the source device working module further includes: The status information sending module is configured to send status information to the wireless control device; the status information includes the values ​​of multiple preset monitoring indicators.

[0128] In some embodiments, the source device working module further includes a first terminal migration module, configured to: If a power reduction command is received from the wireless control device, then the transmitter power is reduced. If an access denial command is received from the wireless control device, the access configuration is adjusted to reject the access of new terminals; If a terminal migration trigger command is received from the wireless control device, a transmission control message is sent to each connected terminal; the transmission control message is used to instruct each terminal to use the new source device indicated by the terminal migration trigger command as the access target. If a first recovery command is received from the wireless control device, the reduced transmission power will be restored to the original transmission power.

[0129] In some embodiments, the mirror device working module further includes a second terminal migration module, configured to: After enabling the wireless access service function to provide wireless access service as a new source device, if a power increase command is received from the wireless control device, the device increases its own transmission power; if a second recovery command is received from the wireless control device, the device restores the increased transmission power to the transmission power before the increase.

[0130] In some embodiments, the mirror device working module further includes: The device upgrade module is configured to perform a firmware upgrade of the device based on the upgrade firmware information carried in the upgrade command if it receives an upgrade command from the wireless control device.

[0131] The specific implementation process of the functions and roles of each unit in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0132] This application also provides an electronic device, the structural schematic diagram of which is shown below. Figure 5As shown, the electronic device 500 includes at least one processor 501, a memory 502, and a bus 503. The at least one processor 501 is electrically connected to the memory 502. The memory 502 is configured to store at least one computer-executable instruction, and the processor 501 is configured to execute the at least one computer-executable instruction to perform the steps of any wireless access control method for FTTR networking provided in any embodiment or optional implementation of this application.

[0133] Furthermore, the processor 501 can be an FPGA (Field-Programmable Gate Array) or other devices with logic processing capabilities, such as an MCU (Microcontroller Unit) or a CPU (Central Processing Unit).

[0134] This application also provides another readable storage medium storing a computer program that, when executed by a processor, implements the steps of any of the wireless access control methods for FTTR networking provided in any of the embodiments or optional implementations of this application.

[0135] The readable storage media provided in this application include, but are not limited to, any type of disk (including floppy disk, hard disk, optical disk, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic cards, or optical cards. In other words, readable storage media include any medium by which a device (e.g., a computer) stores or transmits information in a readable form.

[0136] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recited in the claims may be performed in a different order and still achieve the desired result. Furthermore, the processes depicted in the drawings are not necessarily shown in a specific order or sequence to achieve the desired result. In some implementations, multitasking and parallel processing may be advantageous.

[0137] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wireless access control method applied to FTTR networking, characterized in that, A wireless control device used in a network; the network further includes at least one pair of wireless access devices, each pair of wireless access devices including a source device that enables wireless access service and a mirror device that disables wireless access service; the method includes: For any wireless access device pair, receive the wireless access service information reported by the source device, and synchronize the wireless access service information to the mirror device that belongs to the same wireless access device pair as the source device; If it is determined that the source device has a wireless access service anomaly, a service enable command is sent to the mirror device to enable the local wireless access service function based on the service enable command and provide wireless access service as a new source device. A service disable command is also sent to the source device to disable the enabled wireless access service function and act as a new mirror device.

2. The method according to claim 1, characterized in that, The wireless access service information includes at least: device configuration information that changes during the normal operation of the source device; and roaming entry information corresponding to the terminal accessing the source device. The method further includes: receiving static configuration information for initialization settings reported by the source device, and synchronizing the static configuration information to the mirror device.

3. The method according to claim 1, characterized in that, After synchronizing the wireless access service information to the mirror device that belongs to the same wireless access device pair as the source device, the method further includes: Within each preset heartbeat cycle, it is detected whether status information sent by the source device is received; the status information includes the values ​​of multiple preset monitoring indicators; If no signal is received, it is determined that the source device has a wireless access service anomaly. If received, based on the values ​​of each preset monitoring indicator included in the status information, it is determined whether the status of the source device meets any of the following abnormal judgment conditions. If so, it is determined that the source device has a wireless access service abnormality. The anomaly determination conditions include: the radio frequency signal strength of the source device is lower than a preset signal strength threshold; or, the health score of the source device is lower than a preset score threshold; the health score is determined based on the values ​​of each preset monitoring indicator included in the currently received status information.

4. The method according to claim 1, characterized in that, After sending a service enable command to the mirror device and before sending a service disable command to the source device with a wireless access service anomaly, if the wireless access service anomaly indicates a deterioration in the wireless access performance of the source device, the method further includes: A power reduction command is sent to the source device to reduce the signal transmission power according to the power reduction command, and a power increase command is sent to the new source device to increase the signal transmission power according to the power increase command; Send an access denial command to the source device so that the source device adjusts its access configuration according to the access denial command to reject the access of the new terminal; A terminal migration trigger instruction is sent to the source device, so that the source device sends a transmission control message to each connected terminal according to the terminal migration trigger instruction; the transmission control message is used to instruct each terminal to use the new source device as the access target; After a preset waiting period, a first recovery command is sent to the source device to restore the reduced transmission power to the original transmission power, and a second recovery command is sent to the new source device to restore the increased transmission power to the original transmission power.

5. The method according to claim 1, characterized in that, The method also includes: Obtain proximity information reported by each wireless access device in the network; the proximity information reported by any wireless access device includes: the physical coordinates of the wireless access device; or the Received Signal Strength Indicator (RSSI) detected by the wireless access device from each neighboring wireless access device; Based on the proximity information reported by each wireless access device, if any two wireless access devices are detected to meet any of the following proximity conditions, then the two wireless access devices are identified as a wireless access device pair; the proximity conditions include: The physical coordinate distance between the two wireless access devices is less than a preset deployment distance threshold at the same location, and this physical coordinate distance is less than the distance from either of the two wireless access devices to other wireless access devices in the network; or, The neighboring wireless access device with the strongest RSSI detected by any two wireless access devices is each other.

6. The method according to claim 5, characterized in that, The step of identifying two wireless access devices as a single wireless access device pair specifically includes: The wireless access device that meets either of the two wireless access devices is designated as the source device, and an initial enable command is sent to the wireless access device that meets either of the source device conditions, so that the wireless access device that meets either of the source device conditions maintains its local wireless access service function in an enabled state based on the initial enable command. The other wireless access device among the two wireless access devices, excluding the source device, is used as a mirror device, and an initial shutdown command is sent to the other wireless access device so that the other wireless access device maintains its local wireless access service function in a disabled state based on the initial shutdown command. The source device conditions include: If neither of the two wireless access devices has a terminal connected, then the source device is the wireless access device indicated by the largest MAC address among the two wireless access devices, or the source device is the wireless access device indicated by the smallest delay among the two wireless access devices in response to probe messages from the wireless control device. If one of the two wireless access devices has a terminal access and the other wireless access device has no terminal access, then the source device is the wireless access device with the terminal access. If both wireless access devices have terminals connected, the source device is the wireless access device indicated by the largest number of connected terminals among the two wireless access devices.

7. The method according to claim 1, characterized in that, The method further includes: For any pair of wireless access devices, an upgrade command is sent to the mirror device so that the mirror device performs a firmware upgrade based on the upgrade command. After receiving the firmware upgrade completion response from the mirror device, a service enable command is sent to the upgraded mirror device to enable the wireless access service function and act as the new source device, and a service disable command is sent to the source device to disable the enabled wireless access service function and act as the new mirror device. An upgrade command is sent to the new image device so that the new image device can perform a firmware upgrade based on the upgrade command.

8. A wireless access control method applied to FTTR networking, characterized in that, The method is applied to any wireless access device in any pair of wireless access devices in a network, wherein the network includes a wireless control device; each pair of wireless access devices includes a source device that enables wireless access services and a mirror device that disables wireless access services; the method includes: If the wireless access service is enabled, then: When the wireless access service information changes, the wireless access service information is reported to the wireless control device; if a service shutdown command is received from the wireless control device, the enabled wireless access service function is disabled to act as a new mirror device; or, If the wireless access service is disabled, then: The device receives wireless access service information synchronized by the wireless control device and updates the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, the device enables the wireless access service function to provide wireless access service as a new source device.

9. The method according to claim 8, characterized in that, If the wireless access service function is enabled, the method further includes: The status information is sent to the wireless control device; the status information includes the values ​​of multiple preset monitoring indicators.

10. The method according to claim 8, characterized in that, If the wireless access service function is enabled, the method further includes: If a power reduction command is received from the wireless control device, then the transmitter power is reduced. If an access denial command is received from the wireless control device, the access configuration is adjusted to reject the access of new terminals; If a terminal migration trigger command is received from the wireless control device, a transmission control message is sent to each connected terminal; the transmission control message is used to instruct each terminal to use the new source device indicated by the terminal migration trigger command as the access target. If a first recovery command is received from the wireless control device, the reduced transmission power will be restored to the original transmission power.

11. The method according to claim 8, characterized in that, After enabling the wireless access service function to provide wireless access service as a new source device, the method further includes: If a power increase command is received from the wireless control device, its own transmission power is increased; If a second recovery command is received from the wireless control device, the increased transmission power will be restored to the original transmission power.

12. The method according to claim 8, characterized in that, If the wireless access service is disabled, the method further includes: If an upgrade command is received from the wireless control device, the firmware of this device is upgraded based on the upgrade firmware information carried in the upgrade command.

13. A wireless access control device for FTTR networking, characterized in that, A wireless control device used in a network; the network further includes at least one wireless access device pair, each wireless access device pair including a source device that enables wireless access service and a mirror device that disables wireless access service; the device includes: The synchronization module is configured to receive radio access service information reported by the source device for any radio access device pair, and synchronize the radio access service information to the mirror device that belongs to the same radio access device pair as the source device; The service exception handling module is configured to, if it is determined that the source device has a wireless access service exception, send a service enable command to the mirror device so that the mirror device enables the local wireless access service function based on the service enable command and provides wireless access service as a new source device; and send a service disable command to the source device so that the source device disables the enabled wireless access service function and acts as a new mirror device.

14. A wireless access control device for FTTR networking, characterized in that, An apparatus applicable to any wireless access device in any pair of wireless access devices in a network, wherein the network includes a wireless control device; each pair of wireless access devices includes a source device that enables wireless access service and a mirror device that disables wireless access service; the apparatus includes: The source device working module is configured to, if the wireless access service function is enabled, then: report the wireless access service information to the wireless control device when the wireless access service information changes; if a service shutdown command is received from the wireless control device, shut down the enabled wireless access service function to act as a new mirror device. The mirror device working module is configured to, if the wireless access service function is in a disabled state,: receive wireless access service information synchronized by the wireless control device and update the stored wireless access service information according to the wireless access service information; if a service enable command is received from the wireless control device, enable the wireless access service function to provide wireless access service as a new source device.

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