Service communication method, device and equipment and readable storage medium

Abstract

The invention provides a service communication method, device and equipment and a readable storage medium, and the method comprises the steps: enabling at least one antenna to serve as a monitoring antenna for carrying out the continuous radar signal monitoring of a channel under a single radio frequency system architecture in which access equipment supports multiple input multiple output, and enabling the at least one antenna to serve as a monitoring antenna during the normal transmission of service communication through employing a first channel, the monitoring antenna stably operates in a second channel, continuously scans channels including the first channel to monitor radar signals, switches service communication to the second channel when monitoring that radar signals exist in the first channel, and switches the service communication to the second channel based on the fact that the second channel is continuously confirmed to have no radar activity. And the service communication can be directly started on the second channel, so that the continuity of the service communication in the radar channel avoidance scene is realized. The method is suitable for various IP network environments and various network topology structures, can be used for traditional copper cable access and wireless access scenes, and can also be used for optical fiber access scenes including an FTTR all-optical access network.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a business communication method, apparatus, device and readable storage medium. Background Technology

[0002] In the 5GHz wireless communication frequency band, some spectrum resources were originally reserved for critical systems such as aviation and meteorological monitoring. Existing network equipment that supports the DFS (Dynamic Frequency Selection) mechanism and has the ability to detect radar signals in real time and actively avoid them can share this part of the spectrum resources.

[0003] When a radar signal is detected on a channel used for service communication, the network device immediately stops all service transmissions on that channel and disables the channel for the corresponding radar avoidance period. If the network device then switches to another DFS channel, it must first perform radar silence on that DFS channel. Service communication can only be used on that channel if no radar signal is detected within the radar silence period. During the radar silence period, the network device is prohibited from sending any service packets, resulting in a prolonged service communication interruption and impacting the user's communication experience. Summary of the Invention

[0004] In view of this, in order to solve the above-mentioned technical problems, this application provides a service communication method, apparatus, device and readable storage medium, which can make full use of spectrum resources within the same radio frequency system and effectively improve the continuity of service communication.

[0005] Specifically, this application is implemented through the following technical solution: According to a first aspect of the embodiments of this application, a service communication method is provided. This method is applied to any access device in a network that supports multiple inputs and multiple outputs. The access device is configured with multiple antennas, at least one of which is configured as a monitoring antenna to operate on a channel and is used to monitor radar signals of each channel within the operating frequency band supported by the access device. The method includes: If a radar signal is detected on the first channel currently used for service communication by the monitoring antenna, the service communication is switched from the first channel to the second channel to continue service communication based on the second channel; wherein, the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; Select at least one antenna from the other antennas besides the monitoring antenna as a new monitoring antenna, and configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

[0006] According to a second aspect of the embodiments of this application, a service communication apparatus is provided. This apparatus is applied to any access device supporting multiple inputs and multiple outputs in a network. The access device is configured with multiple antennas, at least one of which is configured as a monitoring antenna to operate on a channel and is used to monitor radar signals of each channel within the operating frequency band supported by the access device. The apparatus includes: A channel switching module is configured to switch the service communication from the first channel to a second channel if a radar signal is detected on the first channel currently used by the monitoring antenna, so that the service communication can continue on the second channel; wherein the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; The monitoring antenna and channel reselection module is configured to select at least one antenna from other antennas besides the monitoring antenna as a new monitoring antenna, and to configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

[0007] According to a third 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 business communication method by invoking the computer program.

[0008] According to a fourth aspect of the embodiments of this application, a computer-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the above-described business communication method.

[0009] The technical solutions provided in this application embodiment may include the following beneficial effects: In the technical solution provided in this application, at least one antenna is configured as a monitoring antenna and continuously operates on a second channel independent of the current service channel. During the maintenance of service communication, radar scanning is continuously performed on each channel within the entire operating frequency band. When a radar signal is detected on the service communication, the service communication is seamlessly migrated to the second channel. Based on the fact that the second channel has been confirmed to be safe and available and that there is no radar signal, the service communication can be started and continue to operate immediately on the second channel. This avoids the service interruption problem caused by the interruption of service communication after channel switching and the execution of radar silence operation on the channel after switching in related technologies. By using a set of radio frequency systems and multiple reusable antennas, fast and efficient radar channel avoidance and switching are achieved, the channel switching delay is shortened, and the continuity of service communication is maintained.

[0010] Furthermore, after the switch is completed, the antenna originally used for communication can be converted into a new monitoring antenna and assigned a new monitoring channel different from the current service channel, thereby forming a closed-loop mechanism of dynamic rotation and continuous monitoring. By utilizing the reusability of MIMO antennas and the time-division multiplexing capability of a single radio frequency system, spectrum utilization efficiency can be improved without adding additional radio frequency hardware.

[0011] In addition, this method can maintain service continuity under radar channel avoidance and channel switching in different network environments, improving the reliability and experience of service communication. For all-optical indoor networks deployed with FTTR, this application can maintain the service communication continuity of access terminals in each room while ensuring the compliant use of radar channels, reducing the occurrence of service interruptions, thereby further improving the user experience of FTTR networks.

[0012] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Furthermore, no embodiment in this application needs to achieve all the effects described above. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0014] Figure 1A This is a flowchart illustrating the steps of a business communication method according to an exemplary embodiment of this application; Figure 1B This is a flowchart illustrating the steps of implementing channel back-switching under a radar back-switching mechanism, as shown in an exemplary embodiment of this application. Figure 1C This is a schematic diagram of channel switching for radar channel avoidance and back-cutting, illustrating an exemplary embodiment of this application; Figure 2A This is a flowchart illustrating the steps of configuring a reselected channel for the new monitoring antenna according to an exemplary embodiment of this application; Figure 2B This is a schematic diagram illustrating an exemplary embodiment of this application of configuring a reselected channel for a new monitoring antenna; Figure 3 This is a schematic diagram of the structure of a service communication device shown in an exemplary embodiment of this application; Figure 4 This is a hardware schematic diagram of an electronic device illustrated in an exemplary embodiment of this application. Detailed Implementation

[0015] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. 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 only used to distinguish information of the same type from one another.

[0016] Before describing the business communication method provided in this application, a brief explanation of some of the terms used in this application is provided: Radar silence: This refers to the requirement that when a wireless device first uses a DFS channel, or switches from another channel to a DFS channel, it must first perform radar signal monitoring on that DFS channel for a certain period of time. During this period, the wireless device cannot transmit any service data; it is only used to detect the presence of radar signals on the DFS channel to ensure that it will not interfere with existing radar systems (such as weather radar) before activating the channel. In the IEEE 802.11h / DFS specification, this silence period is called a channel availability check, and the duration of radar silence usually depends on the radar silence regulations for the region and frequency band.

[0017] Radar avoidance: This refers to the action of a wireless device, upon detecting a radar signal on a used channel, immediately ceasing all communication on that channel and actively switching to another safe channel to avoid continuous interference with the radar system, complying with regulatory requirements. After triggering radar avoidance, the wireless device is prohibited from reusing the channel for a legally mandated radar avoidance period (e.g., 30 minutes). After the radar avoidance period expires, the wireless device can verify whether a radar signal still exists on the channel by performing a radar silence operation to determine whether to perform a radar switchback operation.

[0018] Radar backswitching: When a wireless device triggers radar avoidance due to the detection of a radar signal and switches service communication from the original channel to an alternative channel, the service communication will be switched back to the original channel when the radar avoidance time of the original channel expires and it is confirmed through radar silence operation that no radar signal was detected on the channel during the radar silence time.

[0019] MIMO (Multiple-Input Multiple-Output): A wireless communication technology that improves the spectral efficiency of a communication system without increasing bandwidth or transmit power by using multiple antennas simultaneously at both the transmitting and receiving ends to transmit multiple data streams in parallel. For example, "4×4 MIMO" typically configures four physical antennas, which can be used for both transmitting and receiving. The antennas are connected to the baseband processor through a series of radio frequency components (such as radio frequency front-end modules and radio frequency modules).

[0020] Therefore, some spectrum resources in the 5GHz wireless communication band (such as channels 52, 56, 60, 64, and 100-144 as defined by the IEEE 802.11 standard) were originally reserved for critical systems such as aviation and meteorological monitoring. To alleviate the shortage of spectrum resources for civilian Wi-Fi, international radio management regulations allow network devices to share these frequency bands under strict conditions. The core requirement for sharing these frequency bands is that network devices must support the DFS (Discretionary Detection and Avoidance) mechanism, possessing the ability to detect radar signals in real time and actively avoid them to ensure no interference with radar systems.

[0021] Specifically, when a network device is currently conducting service communication and a radar signal is suddenly detected on the channel used for the service communication, all transmissions on that channel must be stopped immediately, and the channel must be disabled for the subsequent radar avoidance period. If the network device is forced to switch to a non-DFS channel at this time, it will cause a decrease in throughput and affect service continuity. If it switches to another DFS channel, before the network device can use that DFS channel for service communication, it needs to first perform radar silence on that DFS channel to detect whether there is a radar signal on the DFS channel within the corresponding radar silence period. During the radar silence period, the network device is prohibited from sending any service packets and can only passively listen for radar signals. Service communication can only be carried out on the DFS channel if no radar signal is detected within the radar silence period. Since the radar silence period can range from 1 minute to 10 minutes or even 30 minutes, and the network device cannot conduct service communication during the radar silence period, this results in a prolonged service communication interruption, affecting the user's communication experience.

[0022] In view of this, this application provides a service communication method that can be applied to any access device supporting multiple inputs and multiple outputs in a network. This network can include, but is not limited to, various networking scenarios such as carrier networks, enterprise networks, data center networks, and home networks. The access device is a key node device in the network used to provide wireless access and communication services, such as an AP (Access Point), router, wireless gateway, home gateway, or wireless controller. In a typical implementation, this method can be applied to the main gateway or distributed edge access unit (such as an optical Wi-Fi panel or an FTTR slave optical modem) in an FTTR (Fiber To The Room) architecture.

[0023] This access device supports MIMO technology, enabling it to simultaneously transmit and receive wireless signals using multiple antennas. The device is equipped with multiple antennas, such as the common 2, 4, 8, or more, with the specific number flexibly designed according to the device form factor and application scenario.

[0024] In this application, at least one of the multiple antennas configured in the access device is used as a monitoring antenna. This monitoring antenna is configured to operate on a channel and, based on its RF front-end and wideband spectrum sensing capabilities, is used to monitor radar signals on each channel within the operating frequency band supported by the access device. That is, the monitoring antenna involved in any embodiment of this application has cross-channel radar detection capabilities. The RF link center frequency or main operating channel of the monitoring antenna is currently configured as a specific channel (e.g., channel 104), but it is not limited to monitoring only that specific channel. Its corresponding receiving channel has a sufficiently wide instantaneous bandwidth and high-sensitivity spectrum analysis capability, enabling it to capture and analyze the time-frequency characteristics on adjacent / non-adjacent channels (e.g., channel 100). By receiving the signal, it can effectively identify whether any channel within the operating frequency band contains a pulse signal that conforms to radar characteristics. It should be understood that any channel requiring radar silence operation in any embodiment of this application can be understood as a DFS channel. Performing radar silence operation means continuously monitoring whether a radar signal appears on the DFS channel within the radar silence duration corresponding to that DFS channel.

[0025] In addition, at least one antenna other than the monitoring antenna is used for service communication, carrying service data transmission in the data plane or control plane. The monitoring antenna used for radar signal monitoring does not participate in data plane or control plane transmission, is specially configured to perform radar signal detection in Dynamic Frequency Selection (DFS), and maintains parallel operation with the service channels corresponding to other antennas used for service communication during detection. The channel currently used by the monitoring antenna for radar signal monitoring is different from the channel currently used by the antennas used for service communication.

[0026] For example, suppose an access device is configured with four antennas, labeled Antenna 1, Antenna 2, Antenna 3, and Antenna 4. Initially, Antennas 1, 2, and 3 can be used for service communication and configured to operate on channel 100, while Antenna 4 is designated as a monitoring antenna for radar signal detection and configured to operate on channel 104. The center frequency of Antenna 4 is located on channel 104, enabling it to detect the presence of radar signals on channel 100.

[0027] Based on this, see Figure 1A The illustrated flowchart represents the steps of a business communication method. The business communication method provided in this embodiment may include at least the following steps: S101, if a radar signal is detected on the first channel currently used for service communication by the monitoring antenna, the service communication is switched from the first channel to the second channel to continue service communication based on the second channel; wherein, the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; The first channel is the communication channel currently used to carry service messages within the access device. This first channel can be an aggregated channel formed through channel bonding (e.g., 40MHz, 80MHz bandwidth) or a single 20MHz base channel. For example, in the IEEE 802.11n / ac / ax / be Wi-Fi system, if the access device's service communication operates in 80MHz mode, the first channel can be formed by aggregating four consecutive 20MHz sub-channels (e.g., channels 52+56+60+64); if the access device's service communication operates in 20MHz mode, the first channel can also be a single 20MHz channel (e.g., channel 52).

[0028] In this embodiment, a monitoring antenna and its corresponding RF link are dedicated to radar channel monitoring. The monitoring antenna is physically independent of the antenna used for service communication, has no self-interference coupling, and does not participate in service communication. Its RF link only operates in receive mode and does not transmit signals, thereby avoiding interference with its own monitoring. The monitoring antenna operates on the second channel, meaning its RF front-end is tuned to the center frequency of the second channel and uses this as the current monitoring window for signal acquisition and analysis. However, the monitoring antenna is configured through its RF front-end to receive signals within the entire operating frequency band supported by the access device. Its corresponding baseband processor or dedicated DFS detection module can perform rapid spectrum analysis on the signals within its receiving range, thereby continuously scanning each channel within the frequency band (including the 20MHz basic channel and its aggregated channels) for radar signal detection.

[0029] Therefore, while the access device is conducting service communication based on the first channel, the monitoring antenna can continuously scan all channels corresponding to the operating frequency band supported by the access device (including the first channel currently used for service communication) to detect whether there are radar signals conforming to the DFS specification. In this step, the monitoring antenna extracts signal characteristics such as pulse width, pulse repetition interval, and power threshold by listening to the signal on the first channel currently used by the service communication, thereby determining whether there are legitimate radar signals on the first channel currently used by the service communication.

[0030] When a radar signal is detected on the first channel currently used for service communication, all service communication transmissions on that first channel must be stopped immediately. The first channel is configured with a corresponding radar avoidance duration, which is the mandatory lockout duration (usually 30 minutes) after a radar signal is detected, prohibiting access devices from using the first channel again. During this period, access devices must not reactivate the first channel for communication to avoid interfering with the radar system.

[0031] Therefore, when a radar signal is detected on the first channel currently used for service communication, the access device needs to quickly switch to another channel to continue service communication, thus triggering a channel switching process. In this embodiment, service communication is migrated from the currently used first channel to the second channel currently used by the monitoring antenna, which is different from the first channel used for service communication. Since the monitoring antenna is currently operating on the second channel, it indicates that the second channel has been continuously monitored and confirmed to be radar-free, and can be safely and quickly used as a channel for service communication without additional channel availability scanning. The access device can complete the channel migration within milliseconds, achieving rapid service switching and reducing service communication interruptions caused by switching latency.

[0032] The monitoring antenna's RF link supports both transmission and reception, and its corresponding baseband processing unit shares the same MAC layer and network protocol stack with other RF links used for service communication. Therefore, the context information of the terminals connected to the antenna used for service communication can be synchronized to the RF link corresponding to the monitoring antenna in real time via the system's internal bus or shared memory.

[0033] Based on this, after service communication is migrated to the second channel, the monitoring antenna can be directly converted into an antenna for service communication. Specifically, since the RF front-end of the monitoring antenna has been configured and is operating stably on the second channel, when service communication is migrated to the second channel, there is no need to retun, calibrate, or initiate channel availability checks on the antenna RF link. Simply switch its RF link from the signal-only listening mode to the full-duplex transceiver mode and load the cached terminal context information, and it can participate in the transmission and reception of data frames on the second channel, thereby achieving low-latency channel switching.

[0034] In contrast, if the original service antennas are used to access the second channel, the current communication on the first channel must be interrupted first, and then the radio frequency links of these antennas must be reconfigured from the first channel to the second channel. This process involves a series of physical layer operations such as frequency switching, filter resetting, automatic gain adjustment, and phase calibration, which may introduce additional delays and may cause packet loss or connection jitter due to radio frequency switching transients.

[0035] For example, if the aforementioned access device is configured with 4 antennas, and antennas 1, 2, and 3 are configured to operate on channel 100 for service communication, while antenna 4 operates on channel 104 as a monitoring antenna, when antenna 4 detects a radar signal on channel 100 based on the received signal, it can trigger the channel switching mechanism to migrate the service communication to channel 104. The function of antenna 4 is then changed, becoming an antenna used for service communication.

[0036] S102, select at least one antenna from the other antennas besides the monitoring antenna as a new monitoring antenna, and configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

[0037] After migrating service communication from the first channel to the second channel, the original monitoring antenna (such as antenna 4) is used for service communication. In order to maintain dedicated radar signal monitoring for access devices, it is necessary to redetermine the monitoring antenna used for radar signal monitoring in order to continuously meet the requirements of DFS specification for radar detection.

[0038] For example, initially, antennas 1, 2, and 3 are used for service communication and operate on the first channel, while antenna 4 serves as a monitoring antenna for radar signal monitoring and operates on the second channel. When a radar signal is detected on the first channel, service communication is migrated to the second channel, and antenna 4 then becomes the service antenna for service communication, participating in data transmission and reception. At this point, at least one antenna from antennas 1, 2, and 3 (excluding antenna 4) needs to be reselected as the new monitoring antenna; for example, antenna 1 can be selected as the new monitoring antenna.

[0039] Furthermore, to avoid radar signal interference and meet radar signal monitoring requirements, a reselected channel needs to be configured for the new monitoring antenna so that it can continue operating on the reselected channel to continue performing radar signal monitoring, thereby ensuring the continuous operation of the radar signal monitoring service. In this embodiment, the reselected channel is required to be neither in a radar silent state nor marked as a radar avoidance state. Therefore, the reselected channel is different from the first channel where radar signals exist and the second channel currently used for service communication. The new monitoring antenna operates on the reselected channel, and the corresponding RF link is configured in receive-only mode. Its RF front-end is configured to receive signals within the entire operating frequency band supported by the access device, thereby continuously scanning all channels within the frequency band supported by the access device, including the reselected channel, for continuous radar signal monitoring, thus providing a rapid response capability for the next possible radar channel avoidance.

[0040] In this embodiment, the access device, under a single-RF system architecture supporting multiple-input multiple-output (MIMO), configures at least one antenna as a monitoring antenna. This monitoring antenna is dedicated to continuously monitoring radar signals on all channels within the operating frequency band supported by the device. During normal transmission of service communication using the first channel, the monitoring antenna operates stably on the second channel, performing parallel monitoring of the entire frequency band, including the first channel. When a radar signal is detected on the first channel, the access device directly switches the service communication to the second channel currently being used by the monitoring antenna. Since the second channel has been continuously confirmed to be free of radar activity, there is no need to perform the radar silence operation in the DFS mechanism, and service communication can immediately resume on the second channel. This achieves dynamic coordination between radar monitoring and service communication rather than physical isolation. By using a single RF system and multiple reusable antennas, fast and efficient radar channel avoidance and switching are achieved, maintaining the continuity of service communication. Compared to the architecture of "using two RF systems in coordination, with one RF system dedicated to radar monitoring," this embodiment avoids the waste of hardware resources caused by another RF system being dedicated to radar monitoring and unable to provide service communication, thus improving the utilization rate of spectrum resources.

[0041] In addition, after the channel switching is completed in this embodiment, the original monitoring antenna is converted into a service antenna for service communication to participate in service data transmission and reception. At the same time, at least one of the remaining antennas is selected as a new monitoring antenna, and a new listening channel different from the first and second channels is reallocated to the new monitoring antenna to rebuild the radar monitoring capability. This ensures that the radar signals on each channel are continuously sensed during service communication, ensuring the continuity of radar detection and avoiding subsequent channel avoidance delays caused by the interruption of the monitoring function.

[0042] In some embodiments, based on the related technologies, some access devices support a radar back-switching mechanism. That is, after an access device detects a radar signal on the first channel currently used for service communication and switches to another channel, the access device is prohibited from using the first channel again when a radar signal is detected on the first channel. Furthermore, if the first channel is disabled for a duration equal to the radar avoidance duration corresponding to that first channel (e.g., 30 minutes), and then is detected as idle, it can switch back to the original first channel used for service communication from the other channel. The radar back-switching method in the related technologies involves the access device directly switching back from another channel to the original first channel used for service communication. Before conducting service communication on the first channel, the access device first performs radar silence operation on that first channel, a process that causes service communication interruption.

[0043] Based on this, in the above embodiments, after switching service communication from the first channel containing radar signals to the second channel, and assuming the access device supports a radar back-switching mechanism, this embodiment also provides an implementation method for maintaining uninterrupted service communication in the case of radar back-switching. See [link to implementation details]. Figure 1B An exemplary flowchart illustrates the steps for implementing channel back-switching under a radar back-switching mechanism. After switching service communication from the first channel to the second channel, the method may further include a radar back-switching operation, namely: S103, if the duration of disabling the first channel reaches the radar avoidance duration corresponding to the first channel, then the first channel is used as the channel for the operation of the new monitoring antenna, and radar silence operation is performed on the first channel based on the new monitoring antenna. If the duration of disabling the first channel reaches the specified radar avoidance duration (e.g., 30 minutes), it indicates that radar signal detection on the first channel is permitted again. In this embodiment, if the duration of disabling the first channel reaches the radar avoidance duration corresponding to the first channel, the service communication is not directly migrated to the first channel. Instead, the service communication continues on the second channel, while the first channel is used as the channel currently used by the monitoring antenna during operation. The monitoring antenna currently configured in the access device performs radar silence on the first channel.

[0044] As described in step S102 above, a newly selected channel is configured for the new monitoring antenna to operate on. If the access device disables the first channel for a duration equal to the radar avoidance duration corresponding to the first channel, the newly selected channel is replaced with the first channel, making the first channel the operating channel for the new monitoring antenna. Subsequently, the new monitoring antenna performs radar silence operation on the first channel. During the radar silence operation, the new monitoring antenna only listens for radar pulse signals on the first channel.

[0045] S104, if no radar signal is detected within the radar silence period corresponding to the first channel, the service communication is switched back from the second channel to the first channel to continue the service communication based on the first channel; after switching back to the first channel, the new monitoring antenna is used for service communication; If no radar signal is detected within the radar silence duration corresponding to the first channel, it indicates that the radar silence process before activation has been completed on the first channel. At this time, service communication can directly utilize the first channel for service communication. Therefore, service communication can be switched back from the currently used second channel to the first channel and continue without radar silence. This effectively solves the problem of service communication interruption caused by the device directly switching back to the first channel and entering radar silence in related technologies, thus maintaining the continuity and stability of service communication.

[0046] If a radar signal is detected again within the radar silence period corresponding to the first channel, the radar avoidance timer is restarted. To ensure service continuity and avoid violations or service interruptions caused by forcibly switching back to the first channel where radar activity exists, data transmission of service communication on the second channel can be maintained, and a reselected channel can be configured for the new monitoring antenna as the channel used for monitoring antenna operation. For example, the reselected channel configured in step S102 can continue to be used as the channel used for monitoring antenna operation, or a new channel can be selected as the channel used for monitoring antenna operation.

[0047] For example, if a radar signal on the first channel 100 used for business communication switches to the second channel 104 used by the monitoring antenna (antenna 4), and a newly selected channel 108 is configured for the new monitoring antenna (antenna 1); assuming the access device is prohibited from using the first channel 100 again within 30 minutes, then: After 30 minutes, the first channel 100 is reassigned to the new monitoring antenna (antenna 1) as its operating channel, and antenna 1 begins to perform 60 seconds of radar silence on the first channel 100; If no radar signal is detected on the first channel 100 within 60 seconds, the first channel 100 is determined to be available, and the service communication is switched back from the second channel 104 to the first channel 100, thereby realizing radar switching back; If no radar signal is detected on the first channel 100 within 60 seconds, the first channel 100 will be disabled again for 30 minutes. At this time, a newly selected channel 108 or another channel such as 112 will be configured for the new monitoring antenna (antenna 1).

[0048] S105, select at least one antenna from the other antennas besides the new monitoring antenna as the new monitoring antenna, and configure a newly selected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna.

[0049] After switching the service communication back from the second channel to the first channel, similar to the process in the previous embodiment, the new monitoring antenna is used for service communication. At this time, in order to maintain the dedicated radar signal monitoring of the access device, it is necessary to redetermine the monitoring antenna used for radar signal monitoring in order to continuously meet the requirements of the DFS specification for radar detection.

[0050] For example, as described in the above embodiment, when service communication is switched back from the second channel 104 to the first channel 100, the new monitoring antenna (antenna 1) will be used for service communication. At this time, at least one antenna can be selected from the other antennas besides antenna 1 as the new monitoring antenna, and a reselected channel is configured for the new monitoring antenna as the channel used for the operation of the monitoring antenna. The reselected channel is different from the first channel currently used for service communication.

[0051] In this embodiment, radar signal monitoring and service communication functions are decoupled. After the first channel is avoided due to the detection of radar signals, service communication is migrated to the second channel to continue. After the radar avoidance period of the first channel ends, instead of directly attempting to switch back to the first channel, an antenna dedicated to radar signal monitoring performs radar signal monitoring and radar silence verification on the first channel in advance in the background. When the first channel becomes available, service communication is switched back to the first channel and the first channel is directly enabled to continue service communication without additional radar silence. This effectively avoids service interruption caused by directly switching back to the DFS channel and entering radar silence, ensuring the continuity of user communication and service quality.

[0052] To enable those skilled in the art to better understand the business communication method provided in this application, this embodiment provides a specific example to illustrate the business communication method.

[0053] See Figure 1C The exemplary diagram illustrates a channel switching scenario for radar channel avoidance and backswitching. The access device is configured with antennas 1, 2, 3, and 4. In the initial state, antennas 1, 2, and 3 serve as service antennas for service communication and operate on the first channel 100, while antenna 4 serves as a monitoring antenna for radar signal monitoring and operates on the second channel 104. (1) Radar evasion: Based on the detection of a radar signal on the first channel 100 by the monitoring antenna (antenna 4), the service communication is switched from the currently used first channel 100 to the second channel 104; the access device is prohibited from using the first channel 100 again for 30 minutes after the radar signal is detected. After switching to the second channel 104, antenna 4 is used for service communication; based on this, an antenna such as antenna 1 is reselected from antennas 1, 2 and 3 as the new monitoring antenna, and the new monitoring antenna is configured to operate on the newly selected channel 108. (2) Radar back-switching: After the access device disables the first channel 100 for 30 minutes, it continues to conduct business communication on the second channel 104. At the same time, the first channel 100 is used as the channel currently used by the new monitoring antenna (antenna 1). Based on the new monitoring antenna, radar silence operation is performed on the first channel 100. If no radar signal is detected within the radar silence period (e.g., 60s) corresponding to the first channel, the service communication is switched from the second channel 104 to the first channel 100 to continue service communication on the first channel 100; at this time, the new monitoring antenna (antenna 1) can be restarted on the reselected channel 108 or on other channels such as 112.

[0054] This embodiment utilizes a dedicated monitoring antenna for radar silence operation, achieving physical layer decoupling between radar detection and service communication: during the silent monitoring of the first channel, all user service traffic continues to be transmitted normally on the second channel, unaffected by the silence process. Compared to traditional solutions that require pausing service communication to reuse the same RF link for radar silence on the first channel, this effectively avoids secondary service interruptions, improves communication continuity and service quality, and maximizes service availability and user experience.

[0055] In some embodiments, the step of configuring a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna, as described in any of the foregoing embodiments, can be achieved by reselecting the channel in the following manner, see [link to relevant documentation]. Figure 2A An exemplary flowchart illustrates the steps for configuring a reselected channel for the new monitoring antenna, which may include the following steps: S201, determine the current monitoring bandwidth based on the working bandwidth configured for the service communication; Operating bandwidth refers to the channel bandwidth currently configured by the access device for service communication, such as 20 MHz, 40 MHz, 80 MHz, or 160 MHz. This bandwidth is determined by the Wi-Fi standard (such as 802.11ac / ax / be) and the device's capabilities, thus determining the actual spectrum resources occupied by the service communication. For example, if the access device's service communication operates in 80 MHz mode, then the service channel is formed by aggregating four consecutive 20 MHz sub-channels (such as channels 52+56+60+64).

[0056] The current monitoring bandwidth is used to query the channel on which the monitoring antenna is running. The operating bandwidth configured for service communication can be used as the current monitoring bandwidth to ensure that after switching to the channel on which the monitoring antenna is running, the service operates with the same performance as much as possible. For example, if the service communication uses an 80 MHz bandwidth, then the current monitoring bandwidth is set to 80 MHz.

[0057] The current monitoring bandwidth is not fixed, but is a parameter that is dynamically adjusted according to system capabilities, service requirements and spectrum availability. It is used to guide the selection range of available channels. Its value range is limited to the working bandwidth used by the current service communication to the minimum allowable bandwidth, which represents the bandwidth of a single channel, such as 20MHz.

[0058] S202, for each channel within the operating frequency band supported by the access device that conforms to the current monitoring bandwidth, detect whether there is at least one available channel from channels other than those used for service communication; the available channel refers to a channel that is not in radar silence state and is not marked as radar avoidance state; The operating frequency bands supported by the access device refer to the 5GHz DFS and non-DFS sub-bands allowed by its hardware and protocol stack, such as UNII-1 (5150-5250 MHz), UNII-2A (5250-5350 MHz), and UNII-2C (5470-5725MHz). These frequency bands correspond to a series of standard Wi-Fi channels. For example, UNII-1 (5150-5250 MHz) corresponds to channels 36, 40, 44, and 48; UNII-2A (5250-5350 MHz) corresponds to channels 52, 56, 60, and 64; and UNII-2C (5470-5725MHz) corresponds to channels 100 to 144.

[0059] The current monitoring bandwidth can be either aggregated channel bandwidth or not. When the current monitoring bandwidth represents aggregated channel bandwidth, it means the current monitoring bandwidth is greater than 20 MHz and is composed of multiple consecutive 20 MHz base channels, such as 40 MHz, 80 MHz, 160 MHz, or 320 MHz. When the current monitoring bandwidth is not aggregated channel bandwidth, it represents the 20 MHz base bandwidth, which is the most basic channel unit in the IEEE 802.11 standard. In this case, it is sufficient to select a single available 20 MHz channel for the monitoring antenna to operate on; multi-channel aggregation is not required.

[0060] In this implementation step, within the entire 5GHz operating frequency band supported by the access device, for each channel that meets the current monitoring bandwidth, after excluding the channels currently used for service communication, available channels that are not in radar silence mode and are not marked as radar avoidance mode are selected from the remaining channels. One of these channels is then randomly selected (either according to the minimum channel identifier strategy or priority strategy, etc.) and assigned to the new monitoring antenna for antenna operation. The fact that a channel is not in radar silence mode and is not marked as radar avoidance mode indicates that the channel is not currently performing CAC detection and is not currently within the range of channels disabled by the access device.

[0061] When the current monitoring bandwidth represents the aggregated channel bandwidth, all channels that meet the current monitoring bandwidth are aggregated channels. Specifically, within the 5GHz operating frequency band supported by the access device, all combinations of physically contiguous 20MHz sub-channels that comply with regulations are aggregated channels. The total bandwidth of these contiguous 20MHz sub-channel combinations equals the current monitoring bandwidth. The composition of aggregated channels must follow the standard-defined channel numbering rules and spectrum continuity constraints. For cases where the current monitoring bandwidth represents the aggregated channel bandwidth, the required number of contiguous 20MHz sub-channels can be determined based on the current monitoring bandwidth (e.g., 80MHz corresponds to 4 contiguous sub-channels). Further, within the operating frequency band supported by the access device, a sliding window traverses all legal contiguous sub-channel combinations that satisfy the stated number of contiguous 20MHz sub-channels. Each contiguous sub-channel combination is an aggregated channel, thus obtaining the aggregated channels that satisfy the current monitoring bandwidth.

[0062] For example, if the current monitoring bandwidth is 80MHz, then an aggregation channel consists of four consecutive 20MHz base channels. In the 5GHz DFS band, examples of aggregation channels that meet the 80MHz requirement include aggregation channels formed by channel 52 + 56 + 60 + 64, aggregation channels formed by channel 100 + 104 + 108 + 112, and aggregation channels 116 + 120 + 124 + 128, etc.

[0063] When the current monitoring bandwidth represents the aggregated channel bandwidth, and each channel that meets the current monitoring bandwidth is an aggregated channel, then the other channels besides the channels used for service communication can be understood as follows: for any aggregated channel, if the channel identifier of each member channel that makes up the aggregated channel is different from the channel identifier of the channel used for service communication, then the aggregated channel is an other channel besides the channel used for service communication.

[0064] For example, when conducting service communication on the first channel, it is necessary to filter from all aggregated channels other than the first channel. If the first channel is an aggregated channel formed by channel bonding (e.g., an 80MHz bandwidth composed of four consecutive 20MHz basic channels, such as channels 52+56+60+64), then when configuring a reselected channel for a new monitoring antenna, these four basic channels (52, 56, 60, 64) must be excluded. It is also necessary to avoid selecting any aggregated channel that overlaps with or contains these four basic channels. That is, the channel identifiers of each member channel that makes up the aggregated channel do not belong to the channel identifier set 52, 56, 60, 64.

[0065] Since the channel used by the monitoring antenna is used as a backup channel for service communication, when selecting the channel used by the monitoring antenna, if the first 5GHz communication system is currently using an 80MHz bandwidth for service communication on the aggregation channel, it is preferable to use the same 80MHz bandwidth as the current operating bandwidth as the current monitoring bandwidth to detect whether there is an available channel. This ensures that the channel used by the monitoring antenna is aligned with the channel currently used for service communication in terms of bandwidth and spectrum structure. As a result, during subsequent channel switching, services can be seamlessly switched to the 80MHz backup channel used by the monitoring antenna without reducing bandwidth, avoiding throughput loss, and maintaining high service quality.

[0066] S203, if it exists, select one of the available channels as the reselected channel; If only one available channel exists, that available channel will be directly used as the current channel for radar signal monitoring; if multiple available channels exist, an optimal channel can be selected from them according to a preset channel selection strategy.

[0067] For example, when multiple available channels exist, one available channel is selected as the reselected channel from among those available channels whose channel identifier distance to the channel used for the service communication is within a set difference range. For example, assuming the current service communication uses an 80 MHz aggregated channel with a center channel identifier of 106 (corresponding to sub-channels 100+104+108+112), and the set channel identifier difference range is ±20, that is, aggregated channels with channel identifiers in the range of 86 to 126 are preferentially selected. If multiple available 80 MHz aggregated channels exist, such as 52–64 (center channel 58), 116–128 (center channel 122), and 132–144 (center channel 138), then only 116–128 (center channel 122) satisfies the requirement that the channel identifier distance is within the set difference range. Therefore, this 116–128 aggregated channel can be selected as the new channel for the monitoring antenna to operate, i.e., the reselected channel.

[0068] Since low-frequency DFS channels typically have lower propagation loss and better coverage, and their sensitivity to weather radar is relatively controllable in some areas, a minimum channel identifier priority strategy can also be adopted. That is, the available channel with the smallest channel identifier is selected. For example, if the currently available channels include the aggregated channel composed of channels 52-64 and the aggregated channel composed of channels 132-144, then the aggregated channel composed of channels 52-64 is selected.

[0069] Alternatively, other optimization strategies can be adopted, such as a historical availability priority strategy, which selects the channel with the fewest radar events and the fewest avoidance attempts over a past period, or a strategy that combines noise / energy detection to select the channel with the lowest current noise floor. In specific implementation, the channel selection strategy can be flexibly selected according to the current application scenario and supported operating frequency bands of the access device, and this application does not impose any limitations on this.

[0070] S204, if not, if the current monitoring bandwidth represents the aggregated channel bandwidth, reduce the current monitoring bandwidth and return to the step of detecting whether at least one available channel exists.

[0071] If no available channel meets the current monitoring bandwidth, it means there is no compliant and available DFS channel under the current monitoring bandwidth. In this case, since the current monitoring bandwidth represents the aggregated channel bandwidth, not the minimum allowed bandwidth (i.e., the bandwidth of a single basic channel of 20MHz), the search space for available channels can be expanded by further reducing the current monitoring bandwidth, thereby increasing the probability of finding an available channel.

[0072] Therefore, this step reduces the current monitoring bandwidth to the next permissible monitoring bandwidth (e.g., from 80MHz to 40MHz, or from 40MHz to 20MHz), and continues to detect whether there is an available channel that meets the new current monitoring bandwidth.

[0073] This can be achieved by pre-defining a sequence of monitoring bandwidth levels from high to low (e.g., 80 MHz → 40 MHz → 20 MHz). When it is necessary to reduce the current monitoring bandwidth, the channel bandwidth corresponding to the next monitoring bandwidth level adjacent to the current monitoring bandwidth is selected as the new current monitoring bandwidth. For example, if the current bandwidth is 80 MHz, the next level is 40 MHz; if the current bandwidth is 40 MHz, the next level is 20 MHz.

[0074] To better understand this current channel selection process used for radar signal monitoring, see [link to relevant documentation]. Figure 2B An exemplary schematic diagram illustrates the configuration of a reselected channel for a new monitoring antenna. The inputs to the selection process include a list of all available 20MHz base channels within the operating frequency band supported by the access device (e.g., 52, 56, ..., 144, etc.), the channel currently used for service communication, and radar status information for each channel (whether it is in radar silence or has triggered radar avoidance). The output includes the reselected channel (which can be an aggregated channel or a single 20MHz channel).

[0075] According to a preset monitoring bandwidth priority sequence (from high to low), the current monitoring bandwidth is sequentially set to each level of the sequence. For each level of the current monitoring bandwidth, all legal channels that meet the requirements of the current monitoring bandwidth are enumerated from the remaining channels within the operating frequency band after excluding channels occupied by current service communication. It is checked whether at least one legal channel meets the availability condition. If so, one of the channels is selected as the reselected channel, and the process terminates. The availability condition is that the channel is not in a radar silent state and is not marked as a radar avoidance state.

[0076] For example Figure 2B As shown, assuming the current business communication bandwidth is 80MHz, then: S220: Use 80MHz as the current monitoring bandwidth and detect available channels based on 80MHz; Among the channels corresponding to the supported operating frequency bands, after excluding the channels currently used for service communication (such as the aggregated channel composed of channels 52, 56, 60, and 64), enumerate all legal 80MHz aggregated channels according to the standard 80MHz binding rule (four consecutive 20MHz channels with a center frequency interval of 20MHz), such as [36,40,44,48], [100,104,108,112], [104,108,112,116], [116,120,124,128], etc. For each 80MHz aggregated channel, check whether all four of its 20MHz sub-channels are not radar-silenced and are not in radar evasion mode. If so, the aggregated channel is considered a usable channel. If at least one 80MHz aggregated channel meets the usability criteria, select one of them (e.g., prioritize the channel with the smallest channel identifier) ​​as the reselected channel, and end the process.

[0077] If no 80MHz aggregation channel meets the availability criteria, 40MHz will be used as the current monitoring bandwidth.

[0078] S221: Use 40MHz as the current monitoring bandwidth and detect available channels based on 40MHz; Similar to the steps described above, according to the standard 40MHz binding rule (two consecutive 20MHz channels), enumerate all legal 40MHz combinations, such as [116,120], [124,128], etc. For each 40MHz aggregated channel, check whether all two 20MHz sub-channels it contains are not radar-silenced and are not in radar evasion mode. If so, the aggregated channel is considered a usable channel. If there is at least one 40MHz aggregated channel that meets the usability criteria, select one of them (e.g., prioritize the channel with the smallest channel identifier) ​​as the reselected channel, and end the process.

[0079] If no 40MHz aggregation channel meets the availability criteria, 20MHz will be used as the current monitoring bandwidth.

[0080] S222: Fall back to 20MHz as the current monitoring bandwidth and detect available channels based on 20MHz; From the remaining channels (i.e., channels not used for business communication and 20MHz channels that are not silenced by radar or evaded), select any channel as the reselected channel, for example, select the first available channel in ascending order of channel identifier.

[0081] In this embodiment of the disclosure, during the process of configuring a reselected channel for a new monitoring antenna, the search for available channels is prioritized with the current operating bandwidth of the access device as the target, so as to avoid the rate drop caused by switching to a low-bandwidth channel and ensure user experience. If there is no compliant available channel under the current monitoring bandwidth, the monitoring bandwidth is dynamically reduced to the next allowable level and available channels are searched again to expand the search space for available channels until a reselected channel is found or the bandwidth is reduced to the minimum allowable bandwidth, so as to maintain effective radar monitoring capability in complex or restricted DFS spectrum environment and improve the availability and robustness of DFS band.

[0082] In some embodiments, to improve spectrum utilization efficiency and communication performance, the system can further perform channel quality assessment and active optimization after completing the switching of the monitoring antenna role. Specifically, after configuring a reselected channel for the new monitoring antenna as the channel used for monitoring antenna operation as described in any of the foregoing embodiments (such as step S102 or step S105), spectrum sensing can be further performed based on the signal received by the new monitoring antenna on that channel to detect whether there is a candidate channel whose communication quality is better than the channel currently used for service communication.

[0083] If a candidate channel exists, it is used as the channel currently used by the new monitoring antenna, and radar silence operation is performed on the candidate channel based on the new monitoring antenna. If no radar signal is detected within the radar silence duration corresponding to the candidate channel, the service communication is further switched from the currently used channel to the candidate channel to continue the service communication based on the candidate channel, thereby dynamically selecting a better channel to improve communication performance.

[0084] After the service communication is further switched from the currently used channel to the candidate channel, the new monitoring antenna will be dedicated to the service communication. At this time, at least one antenna can be selected from other antennas besides the new monitoring antenna as the new monitoring antenna, and a newly selected channel is configured for the new monitoring antenna as the channel used for the operation of the monitoring antenna.

[0085] For example, an access device has completed a radar channel avoidance operation, and its current status is as follows: Service communication is switched from the first channel 100 to the second channel 104 (20 MHz mode). The original monitoring antenna (antenna 4) has been converted to a service antenna. Antenna 1 has been selected as the new monitoring antenna, and a newly selected channel 108 has been configured for antenna 1. Antenna 1 continuously monitors on channel 108 and simultaneously performs a passive scan of neighboring channels. It was found that channel 112 has a higher received signal strength, lower noise, and no Wi-Fi co-channel interference. The evaluation determines that the communication quality of channel 112 is better than the first channel 104 currently used for service communication. Therefore: Set channel 112 as the new channel currently used by the monitoring antenna (antenna 1); antenna 1 starts radar silence operation on channel 112. If no radar pulse is detected during the radar silence period, it is determined that channel 112 is safe and available. Then, the service communication is switched from channel 104 to channel 112 to achieve performance optimization.

[0086] Meanwhile, if antenna 1 is switched to service communication, an antenna other than antenna 1, such as antenna 2, can be selected as a new monitoring antenna, and a new channel, such as channel 108 or other channel 116, can be reassigned to the new monitoring antenna to maintain continuous radar monitoring capability.

[0087] This embodiment further utilizes a monitoring antenna to passively scan and assess the communication quality of surrounding channels, actively identifying candidate channels that are superior to the current service channel. The entire channel quality assessment process, as well as the subsequent radar silence operation performed on the candidate channel, are all completed independently by the monitoring antenna. Only after confirming that the candidate channel is safe and available does the system perform a fast and smooth channel switch to migrate the service to the better channel. The above process does not require interruption or impact on ongoing service communication, ensuring that user data traffic is continuously transmitted on the original service channel, achieving channel optimization that is imperceptible to the service.

[0088] In some embodiments, after configuring a reselected channel for the new monitoring antenna as the channel used for its operation, as described in any of the foregoing embodiments, if the reselected channel belongs to a radar channel defined by a dynamic frequency selection mechanism, then continuous radar signal monitoring (i.e., radar silence operation) needs to be performed on the channel by the new monitoring antenna during the radar silence period corresponding to the reselected channel. That is, the access device performs radar silence operation on the reselected channel based on the new monitoring antenna; if a radar signal is detected during the radar silence period corresponding to the reselected channel, then a reselected channel is configured for the new monitoring antenna as the channel used for its operation.

[0089] In other words, the access device controls the new monitoring antenna to perform full-time or periodic spectrum sensing on the newly selected radar channel, and detects whether there are signals that meet the preset radar characteristics on the newly selected radar channel within the specified radar silence period.

[0090] If a radar signal is detected during the silence period, the channel is determined to be currently unavailable. The access device will immediately abandon using this channel as the monitoring antenna and select a new channel from other unoccupied channels in the operating frequency band that have not detected radar signals. This silence detection process is repeated until an available channel that has not detected radar signals during the silence period is found. The reselected channel must also meet the following conditions: it is not a channel currently containing radar signals; and it is different from the channel currently used for service communication.

[0091] In this embodiment, by introducing radar silence detection on the reselected channel, the misuse of channels with potential radar activity as channels for monitoring antenna operation is avoided. This ensures that the monitoring antenna operates on an available channel without radar signals, thereby providing an available alternative channel for channel switching when radar signals appear on the channel used for service communication, and maintaining the continuity of service communication during channel switching.

[0092] Corresponding to the embodiments of the aforementioned business communication methods, see [link to relevant documentation]. Figure 3 As shown, this application also provides an embodiment of a service communication device, which is applied to any access device in a network that supports multiple inputs and multiple outputs. The access device is configured with multiple antennas, at least one of which is configured as a monitoring antenna to operate on a channel and is used to monitor radar signals on each channel within the operating frequency band supported by the access device. The device includes: The channel switching module 301 is configured to switch the service communication from the first channel to a second channel if a radar signal is detected on the first channel currently used for service communication based on the monitoring antenna, so as to continue service communication based on the second channel; wherein, the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; The monitoring antenna and channel reselection module 302 is configured to select at least one antenna from other antennas besides the monitoring antenna as a new monitoring antenna, and configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

[0093] In some embodiments, the access device disables the first channel when a radar signal is detected on the first channel; after configuring a reselected channel for the new monitoring antenna, the device further includes: The back-cut monitoring module is configured to use the first channel as the channel for operation of the new monitoring antenna if the duration of disabling the first channel reaches the radar avoidance duration corresponding to the first channel, and to perform radar silence operation on the first channel based on the new monitoring antenna. The switchback module is configured to switch service communication back from the second channel to the first channel if no radar signal is detected within the radar silence period corresponding to the first channel, so as to continue service communication based on the first channel; after switching back to the first channel, the new monitoring antenna is used for service communication; The antenna and channel reselection module is configured to select at least one antenna from other antennas besides the new monitoring antenna as the new monitoring antenna, and to configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna.

[0094] In some embodiments, when the monitoring antenna and channel reselection module / or the antenna and channel reselection module is configured to configure a newly selected channel as the channel used for the operation of the monitoring antenna, it includes: The monitoring bandwidth determination module is configured to determine the current monitoring bandwidth based on the working bandwidth configured for the service communication; The detection module is configured to detect, for each channel within the operating frequency band supported by the access device that conforms to the current monitoring bandwidth, whether there is at least one available channel from channels other than those used for service communication; the available channel refers to a channel that is not in radar silence state and is not marked as radar avoidance state; The selection module is configured to select one of the available channels as the reselected channel if it exists. The detection bandwidth update module is configured to, if it does not exist, reduce the current monitoring bandwidth and return to the step of detecting whether at least one available channel exists, provided that the current monitoring bandwidth represents the aggregated channel bandwidth.

[0095] In some embodiments, where the current monitoring bandwidth represents the aggregated channel bandwidth, each channel that conforms to the current monitoring bandwidth is an aggregated channel; the other channels besides the channels used for service communication include: for any aggregated channel, if the channel identifier of each member channel constituting the aggregated channel is different from the channel identifier of the channel used for service communication, then the aggregated channel is an aggregated channel other than the channel used for service communication.

[0096] In some embodiments, when the selection module is configured to select one of the available channels as the reselected channel, it includes: If multiple available channels exist, then select one available channel as the reselected channel from among the available channels whose channel identifier distance to the channel used for communication with the service is within a set difference range.

[0097] In some embodiments, after configuring a reselected channel for the new monitoring antenna as the channel used for monitoring antenna operation, the device further includes: The superior channel detection module is configured to detect the existence of a candidate channel based on the signal received by the new monitoring antenna, the candidate channel having a better communication quality than the channel currently used for service communication; The optimized channel silence module is configured to, if it exists, use the candidate channel as the channel currently used by the new monitoring antenna and perform radar silence operation on the candidate channel based on the new monitoring antenna. The optimized channel switching module is configured to further switch service communication from the currently used channel to the candidate channel if no radar signal is detected within the radar silence period corresponding to the candidate channel, so as to continue service communication based on the candidate channel.

[0098] In some embodiments, after configuring a reselected channel for the new monitoring antenna as the channel used for monitoring antenna operation, the device further includes: The silence module is configured to perform radar silence operation on the newly selected channel based on the new monitoring antenna; The reselection module is configured to, if a radar signal is detected within the radar silence period corresponding to the reselected channel, configure a reselected channel for the new monitoring antenna as the channel for the monitoring antenna to operate.

[0099] 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.

[0100] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this application according to actual needs. Those skilled in the art can understand and implement this without any inventive effort.

[0101] This application also provides an electronic device, the structural schematic diagram of which is shown below. Figure 4 As shown, the electronic device 400 includes at least one processor 401, a memory 402, and a bus 403. At least one processor 401 is electrically connected to the memory 402. The memory 402 is configured to store at least one computer-executable instruction, and the processor 401 is configured to execute the at least one computer-executable instruction to perform the steps of any business communication method provided in any embodiment or optional implementation of this application.

[0102] Furthermore, the processor 401 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).

[0103] This application also provides another readable storage medium storing a computer program that, when executed by a processor, implements the steps of any business communication method provided in any embodiment or optional implementation of this application.

[0104] 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.

[0105] 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.

[0106] While this specification contains numerous specific implementation details, these should not be construed as limiting the scope of any invention or the scope of the claims, but rather are primarily intended to describe features of specific embodiments of a particular invention. Certain features described in the various embodiments herein may also be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment may also be implemented separately in various embodiments or in any suitable sub-combination. Furthermore, while features may function in certain combinations as described above and even initially claimed in this way, one or more features from a claimed combination may be removed from that combination in some cases, and a claimed combination may refer to a sub-combination or a variation thereof.

[0107] 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 business communication method, characterized in that, This method is applied to any access device in a network that supports multiple inputs and multiple outputs. The access device is configured with multiple antennas, and at least one antenna is configured to operate on a channel as a monitoring antenna and is used to monitor radar signals of each channel within the operating frequency band supported by the access device. The method includes: If a radar signal is detected on the first channel currently used for service communication by the monitoring antenna, the service communication is switched from the first channel to the second channel to continue service communication based on the second channel; wherein, the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; Select at least one antenna from the other antennas besides the monitoring antenna as a new monitoring antenna, and configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

2. The method according to claim 1, characterized in that, The access device disables the first channel when it detects a radar signal on the first channel; after configuring a reselected channel for the new monitoring antenna, the method further includes: If the duration of disabling the first channel reaches the radar avoidance duration corresponding to the first channel, then the first channel will be used as the channel for the operation of the new monitoring antenna, and radar silence operation will be performed on the first channel based on the new monitoring antenna. If no radar signal is detected within the radar silence period corresponding to the first channel, the service communication is switched back from the second channel to the first channel to continue the service communication based on the first channel; after switching back to the first channel, the new monitoring antenna is used for service communication; Select at least one antenna from the other antennas besides the new monitoring antenna as the new monitoring antenna, and configure a newly selected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna.

3. The method according to claim 1 or 2, characterized in that, The step of configuring a newly selected channel for the new monitoring antenna as the channel used for its operation includes: Determine the current monitoring bandwidth based on the working bandwidth configured for the aforementioned service communication; For each channel within the operating frequency band supported by the access device that conforms to the current monitoring bandwidth, detect whether there is at least one available channel from the channels other than those used for business communication; the available channel refers to a channel that is not in radar silence state and is not marked as radar avoidance state; If one exists, select one of the available channels as the reselected channel; If not, then if the current monitoring bandwidth represents the aggregated channel bandwidth, reduce the current monitoring bandwidth and return to the step of detecting whether at least one available channel exists.

4. The method according to claim 3, characterized in that, When the current monitoring bandwidth represents the aggregated channel bandwidth, all channels that conform to the current monitoring bandwidth are aggregated channels; The channels other than those used for service communication include: for any aggregated channel, if the channel identifier of each member channel constituting the aggregated channel is different from the channel identifier of the channel used for service communication, then the aggregated channel is a channel other than those used for service communication.

5. The method according to claim 3, characterized in that, Selecting one of the available channels as the reselected channel includes: If multiple available channels exist, then select one available channel as the reselected channel from among the available channels whose channel identifier distance to the channel used for communication with the service is within a set difference range.

6. The method according to claim 1 or 2, characterized in that, After configuring a newly selected channel for the new monitoring antenna as the channel used for its operation, the method further includes: Based on the signal received by the new monitoring antenna, it is possible to detect whether there is a candidate channel, and the communication quality of the candidate channel is better than that of the channel currently used for business communication; If it exists, the candidate channel will be used as the channel for the operation of the new monitoring antenna, and radar silence operation will be performed on the candidate channel based on the new monitoring antenna. If no radar signal is detected within the radar silence period corresponding to the candidate channel, the service communication will be further switched from the currently used channel to the candidate channel to continue the service communication based on the candidate channel.

7. The method according to claim 1 or 2, characterized in that, After configuring a newly selected channel for the new monitoring antenna as the channel used for its operation, the method further includes: Based on this new monitoring antenna, radar silence operation is performed on the newly selected channel; If a radar signal is detected within the radar silence period corresponding to the newly selected channel, then a newly selected channel is configured for the new monitoring antenna as the channel used for the operation of the monitoring antenna.

8. A business communication device, characterized in that, The device is applied to any access device in a network that supports multiple inputs and multiple outputs. The access device is equipped with multiple antennas, and at least one antenna is configured to operate on a channel as a monitoring antenna and is used to monitor radar signals of each channel within the operating frequency band supported by the access device. The device includes: A channel switching module is configured to switch the service communication from the first channel to a second channel if a radar signal is detected on the first channel currently used by the monitoring antenna, so that the service communication can continue on the second channel; wherein the second channel represents the channel currently used by the monitoring antenna; after switching to the second channel, the monitoring antenna is used for service communication; The monitoring antenna and channel reselection module is configured to select at least one antenna from other antennas besides the monitoring antenna as a new monitoring antenna, and to configure a reselected channel for the new monitoring antenna as the channel used for the operation of the monitoring antenna; the reselected channel is different from the first channel and different from the channel currently used for service communication.

9. An electronic device, characterized in that, include: Memory, processor; The memory is used to store computer programs; The processor is configured to invoke the computer program to implement the method as described in any one of claims 1-7.

10. A readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1-7.

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