CN116801266A

CN116801266A - Wireless network coverage system and AP equipment

Info

Publication number: CN116801266A
Application number: CN202311071408.3A
Authority: CN
Inventors: 张辉; 吴正中; 汤小梁; 唐才荣; 赵凤阳; 孔祥开; 韩建军
Original assignee: Beijing Urban Construction Intelligent Control Technology Co ltd
Current assignee: Beijing Urban Construction Intelligent Control Technology Co ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2023-09-22
Anticipated expiration: 2043-08-24
Also published as: CN116801266B

Abstract

The invention provides a wireless network coverage system and AP equipment, which relate to the technical field of wireless communication, wherein the wireless network coverage system comprises: an AC device, a master AP device in communication connection with the AC device, and a plurality of slave AP devices in a demultiplexed cascade on the master AP device; the master AP equipment and the slave AP equipment comprise a plurality of coaxial cable interfaces, and the coaxial cable interfaces are used for supplying power to the plurality of slave AP equipment through coaxial cables and for realizing network communication among the AP equipment through the coaxial cables. By utilizing the coaxial cable to transmit signals and power, networking convenience, applicability and reliability of the wireless network coverage system can be improved.

Description

Wireless network coverage system and AP equipment

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a wireless network coverage system and an AP device.

Background

Wireless local area networks (Wireless Local Area Network, WLAN) are one of wireless communication technologies that utilize radio frequencies as transmission media for data transmission, and are divided into 2.4GHz bands (2.4 GHz-2.4835 GHz) and 5GHz bands (5.150 GHz-5.350 GHz and 5.720 GHz-5.850 GHz).

In the prior art, WLAN coverage (or wifi coverage) is provided in a certain range of space, a network needs to be planned according to the wireless radio frequency coverage capability of a wireless router and the situation of an obstacle, and meanwhile, a power supply network needs to be planned according to the deployment situation of the wireless router, namely, two sets of line networks need to be planned. The circuit mesh is complex to set, and the existing scheme is not well applicable to scenes with harsh space environments, such as underground closed spaces, which have extremely high requirements on wiring, moisture resistance and networking convenience.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention provides a wireless network coverage system and AP equipment.

In a first aspect, the present invention provides a wireless network coverage system comprising:

an AC device, a master AP device in communication connection with the AC device, and a plurality of slave AP devices in a demultiplexed cascade on the master AP device;

the master AP equipment and the slave AP equipment comprise a plurality of coaxial cable interfaces, and the coaxial cable interfaces are used for supplying power to the plurality of slave AP equipment through coaxial cables and for realizing network communication among the AP equipment through the coaxial cables.

In some embodiments, the master AP device includes a first master module and a plurality of first slave modules communicatively connected to the first master module;

the first main module is in communication connection with the AC equipment and is used for providing a wireless network coverage function of a 5GHz frequency band and/or a 2.4GHz frequency band;

the first slave module is used for providing a backhaul link as an AP to a downstream slave AP device through a coaxial cable interface.

In some embodiments, the first main module includes a first 5G rf module, a first 2.4G rf module, and a first switch chip; the first main module is in communication connection with the AC equipment through the first exchange chip, and the first 5G radio frequency module and the first 2.4G radio frequency module are respectively communicated with the first exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

the first slave module comprises a second 5G radio frequency module and a first coaxial cable interface; the second 5G radio frequency module is configured to provide a backhaul link as an AP from an AP device connected downward through the first coaxial cable interface, where the second 5G radio frequency module is in communication with the first switching chip.

In some embodiments, the slave AP device includes a second master module, a second slave module, and a third slave module;

the second slave module and the third slave module are both in communication connection with the second master module, the second slave module is used as an STA to be connected with the master AP device or other slave AP devices in an uplink mode through a coaxial cable interface, the third slave module is used as an AP to provide a return link for the slave AP devices connected in a downlink mode through the coaxial cable interface, and the second master module is used for providing a wireless network coverage function of a 5GHz frequency band and/or a 2.4GHz frequency band.

In some embodiments, the second main module includes a third 5G rf module, a second 2.4G rf module, and a second switching chip; the third 5G radio frequency module and the second 2.4G radio frequency module are respectively communicated with the second exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

the second slave module comprises a fourth 5G radio frequency module and a second coaxial cable interface; the fourth 5G radio frequency module is used as an STA to be connected with the master AP device or other slave AP devices through the second coaxial cable interface, and the fourth 5G radio frequency module is connected with the second switching chip;

the third slave module comprises a fifth 5G radio frequency module and a third coaxial cable interface; the fifth 5G radio frequency module is configured to provide a backhaul link as an AP to a slave AP device connected downward through the third coaxial cable interface, where the fifth 5G radio frequency module is in communication with the second switching chip.

In some embodiments, the third coaxial cable interface in the slave AP device at each end of the path is connected to an attenuator in the plurality of slave AP devices that are connected in cascade to the master AP device.

In some embodiments, the master AP device includes two of the first slave modules therein.

In some embodiments, the method for initializing the master AP device includes:

after the master AP equipment is powered on, the first master module and the plurality of first slave modules complete VLAN configuration, and are used for communication between the first master module and the plurality of first slave modules;

and the first slave module initiates registration to the first master module, and after the registration is successful, the first master module configures the first slave module to enable radio frequency and work in an AP mode.

In some embodiments, the method for initializing the slave AP device includes:

after the slave AP equipment is powered on, the second master module, the second slave module and the third slave module complete VLAN configuration and are used for communication among the second master module, the second slave module and the third slave module;

the second slave module and the third slave module initiate registration to the second master module, and after the registration is successful, the second master module configures the second slave module to enable radio frequency and work in an STA mode;

and after the second slave module scans the SSID appointed in the coaxial cable interface and selects the corresponding radio frequency to establish a link, the second master module configures the third slave module to enable radio frequency and work in an AP mode.

In some embodiments, in the wireless network coverage system, the radio frequency subinterfaces of each AP device are all configured in the same VLAN.

In a second aspect, the present invention further provides an AP device, for use in the wireless network coverage system of the first aspect, where the AP device includes a master module and a plurality of slave modules communicatively connected to the master module;

the main module comprises a 5G radio frequency module, a 2.4G radio frequency module and an exchange chip, wherein the 5G radio frequency module and the 2.4G radio frequency module in the main module are respectively communicated with the exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

each slave module comprises a 5G radio frequency module and a coaxial cable interface, the 5G radio frequency module in the slave module is connected with other AP equipment through the coaxial cable interface, and the 5G radio frequency module in the slave module is communicated with the exchange chip.

In some embodiments, the operation modes of the slave module include a STA mode and an AP mode;

wherein, in the case of being configured in the AP mode, the slave module is configured to provide a backhaul link to an AP device connected downward through the coaxial cable interface;

and under the condition of being configured into the STA mode, the slave module is used for connecting other AP equipment through the coaxial cable interface.

According to the wireless network coverage system and the AP equipment, the plurality of slave AP equipment are in multi-path cascade connection on the master AP equipment, and the coaxial cable interfaces are arranged in the master AP equipment and the slave AP equipment, and through the coaxial cable interfaces, the coaxial cables can be used for supplying power to the slave AP equipment and realizing network communication among the AP equipment, so that the wireless network coverage system can greatly reduce the complexity of wiring by transmitting signals and transmitting power in the coaxial cables, and the coaxial cables have the characteristics of good interference resistance, moisture resistance, durability and the like, and have good bandwidth, so that the wireless network coverage system can be well suitable for severe space environments such as underground closed spaces and the like, and networking convenience, applicability and reliability of the wireless network coverage system are improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a wireless network coverage system according to the present invention;

fig. 2 is a schematic structural diagram of an AP device according to the present invention;

fig. 3 is a schematic diagram of an initialization flow of a master AP device according to the present invention;

fig. 4 is a schematic diagram of an initialization flow of a slave AP device according to the present invention.

Detailed Description

The term "and/or" in the present invention describes an association relationship of association objects, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the present invention means two or more, and other adjectives are similar thereto.

The terms "first," "second," and the like, herein, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more.

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to facilitate a clearer understanding of the technical solution of the present invention, first, technical terms related to embodiments of the present invention will be described.

Access Point (AP) mode: the AP mode refers to that a device acts as a central node of a wireless network, a separate wireless network can be created and provided for other devices to connect for use, and a wireless router used in a general home or office is an AP. In the AP mode, a device transmits wireless signals, and other devices may connect to a wireless network created by the device and communicate and access the internet through the network.

Station (STA) mode: the STA mode means that devices connect to an existing wireless network in the form of clients and access the internet through the wireless network, and each terminal connected to the wireless network may be referred to as an STA. In the STA mode, the device receives a wireless signal transmitted by the AP device as a client, and connects to the internet through the AP device.

Fig. 1 is a schematic architecture diagram of a wireless network coverage system provided in the present invention, as shown in fig. 1, where the wireless network coverage system includes:

AC device 110, a master AP device 120 communicatively coupled to AC device 110, and a plurality of slave AP devices 130 that are demultiplexed and cascaded on master AP device 120;

wherein the master AP device 120 and the slave AP device 130 each include a plurality of coaxial cable interfaces for supplying power to the plurality of slave AP devices 130 through coaxial cables and for enabling network communication between the AP devices through the coaxial cables.

Specifically, an AP is also called a wireless access point or an access point, and an AP device refers to a device with an AP function, through which a user terminal can access a network.

The access controller (Access Controller, AC) device is a wireless lan access control device, and is responsible for aggregating data from different APs and accessing the Internet (Internet), and simultaneously performing configuration management of the AP device, authentication and management of wireless users, broadband access, security, and other control functions.

The coaxial cable is a cable with two concentric conductors, the conductor and the shielding layer share an axle center, the outer conductor forms a shielding effect on the inner conductor, and when high-frequency signals are transmitted, the conductor radiates electromagnetic fields outwards to be restrained, so that the coaxial cable can be used for transmitting the high-frequency radio-frequency signals.

In the wireless network coverage system, coaxial cable interfaces are arranged in the master AP equipment and the slave AP equipment, and through the coaxial cable interfaces, coaxial cables can be used for supplying power to the slave AP equipment and realizing network communication among the AP equipment. The wireless network coverage system can greatly reduce the complexity of wiring by transmitting signals and power in the coaxial cable, and the coaxial cable has the characteristics of good anti-interference, moisture resistance, durability and the like, and has a relatively good bandwidth, so that the wireless network coverage system can be well suitable for scenes with harsh space environments such as underground closed spaces and the like.

Accordingly, in order to adapt the design of transmitting both signals and power in the coaxial cable, the present invention proposes a new networking architecture of ac+ap, in which AP devices communicatively connected to AC devices are called master AP devices, AP devices connected to the master AP devices are called slave AP devices, and these slave AP devices may be demultiplexed and cascaded to the master AP device. It should be noted that the two-way cascade shown in fig. 1 is merely an example, and in some embodiments, the slave AP device may be cascaded to the master AP device in two or more ways, which is not limited by the present invention.

In some embodiments, the master AP device may extend two or more coaxial interfaces (i.e., coaxial cable interfaces) for cascading one slave AP device, respectively.

In some embodiments, each slave AP device may be provided with two coaxial interfaces, one for interfacing with other AP devices (for ease of discussion, may be referred to as a left subinterface) and one for cascading of subsequent AP devices (for ease of discussion, may be referred to as a right subinterface). If the current slave AP equipment is close to the master AP equipment, the left sub-interface of the current slave AP equipment is connected with any coaxial interface of the master AP equipment through a coaxial cable; if the current slave AP device is not immediately adjacent to the master AP device, the left subinterface of the current slave AP device is connected with the right subinterface of the previous slave AP device.

In some embodiments, a slave AP device may set one left sub-interface and multiple right sub-interfaces, i.e., one slave AP device may connect multiple slave AP devices down.

In some embodiments, the slave AP device at each end of the path may set the left subinterface and not the right subinterface.

In some embodiments, the right sub-interface of the slave AP device at each end of the path may be connected to an attenuator, i.e., plugged with an attenuator.

In some embodiments, the coaxial connector between the AP devices may use an aviation plug, which is one of connectors, and is suitable for a scenario with stringent requirements on temperature, humidity, atmospheric pressure, and environmental corrosion, so that the applicability and reliability of the wireless network coverage system may be further improved.

In some embodiments, the AC device may be placed in a core machine room and suspended by a core switch, and a centralized forwarding mode may be used, where the data packet flows between the AC device and the AP device through a tunnel, and has no impact on the existing network.

In some embodiments, the master AP device may be placed at an ingress location of the target coverage area, powered by an uninterruptible power supply (Uninterruptible Power Supply, UPS) power source.

In some embodiments, the master AP device may access a local area network over an optical fiber, communicate with the AC device over the local area network, and provide backhaul services. The bandwidth capability of the master AP equipment can be exerted to the greatest extent by using the light rays, and the bandwidth requirements of all the slave AP equipment are met.

In some embodiments, both the master AP device and the slave AP device may provide radio frequencies in the 5GHz band and the 2.4GHz band for implementing wifi coverage functions.

In some embodiments, the interval between two neighboring slave AP devices or the master AP device and the neighboring slave AP devices may be set to be around 150 meters.

According to the wireless network coverage system provided by the invention, the plurality of slave AP devices are in multi-path cascade connection on the master AP device, and coaxial cable interfaces are arranged in the master AP device and the slave AP devices, and through the coaxial cable interfaces, coaxial cables can be used for supplying power to the slave AP devices and realizing network communication among the AP devices, so that the wireless network coverage system can greatly reduce the complexity of wiring by transmitting signals and transmitting power in the coaxial cables, and the coaxial cables have the characteristics of good interference resistance, moisture resistance, durability and the like, and have good bandwidth, so that the wireless network coverage system can be well suitable for scenes with harsh space environments such as underground closed spaces and the like, and the networking convenience, applicability and reliability of the wireless network coverage system are improved.

In some embodiments, a master AP device includes a first master module and a plurality of first slave modules communicatively coupled to the first master module;

Specifically, the master module and the slave module in the master AP device may be referred to as a first master module and a first slave module, respectively, where the first master module and the first slave module implement different functions, respectively.

The first main module is used for realizing communication connection with the AC equipment and providing a wireless network coverage function of a 5GHz frequency band and/or a 2.4GHz frequency band.

Each first slave module can be cascaded by the following slave AP equipment, and the first slave module can serve as an AP to provide a backhaul link to the downstream slave AP equipment through a coaxial cable interface arranged in the first slave module. In some embodiments, the master AP device includes two first slave modules, i.e., two slave AP devices may be cascaded.

The master AP equipment is divided into a plurality of modules, the master module is responsible for radio frequency coverage, the slave modules are responsible for cascading and back transmission, and the functions are decoupled, so that the complexity of the equipment can be reduced.

In some embodiments, the first main module includes a first 5G rf module, a first 2.4G rf module, and a first switch chip; the first main module is in communication connection with the AC equipment through a first exchange chip, and the first 5G radio frequency module and the first 2.4G radio frequency module are respectively communicated with the first exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

the first slave module comprises a second 5G radio frequency module and a first coaxial cable interface; the second 5G radio frequency module is used as an AP to provide a return link from the AP equipment in a downward connection mode through the first coaxial cable interface, and the second 5G radio frequency module is communicated with the first exchange chip.

Specifically, in each embodiment of the present invention, the 5G radio frequency module refers to a module with a 5GHz band radio frequency function, and the 2.4G radio frequency module refers to a module with a 2.4GHz band radio frequency function, and the concept remains consistent throughout, and will not be described in detail later.

Fig. 2 is a schematic structural diagram of an AP device provided by the present invention, and an exemplary description is given below of a main AP device provided by this embodiment by taking the structure of the AP device as an example.

As shown in fig. 2, the AP device includes 1 master module and 2 slave modules (where the left slave module is referred to as a left module and the right slave module is referred to as a right module), and assuming that the master AP device includes 2 first slave modules, the first master module of the master AP device may refer to the master module illustrated in fig. 2, and the 2 first slave modules of the master AP device may refer to the left module and the right module illustrated in fig. 2, where the left module and the right module are identical in structure.

As shown in fig. 2, the main module in the figure includes a 5G rf module, a 2.4G rf module, and a switching module (i.e., a switching chip). The 5G radio frequency module and the 2.4G radio frequency module are respectively communicated with the exchange module through respective network bridges.

As shown in fig. 2, the left module and the right module in the figure both comprise a 5G radio frequency module and a coaxial cable interface (i.e., a left sub-interface and a right sub-interface in the figure), and the 5G radio frequency module is communicated with the switching module through a network bridge and an expansion network port.

For the main AP equipment, the left module and the right module have the same functions, and are used as the AP to provide a return link to the downward connected slave AP equipment through the left sub-interface and the right sub-interface.

the second slave module is used as an STA to be connected with the master AP equipment or other slave AP equipment through the coaxial cable interface in an uplink mode, the third slave module is used as an AP to be connected with the slave AP equipment in a downlink mode through the coaxial cable interface to provide a return link, and the second master module is used for providing a wireless network coverage function of a 5GHz frequency band and/or a 2.4GHz frequency band.

Specifically, the master module in the slave AP device may be referred to as a second master module, where the second master module is configured to provide a wireless network coverage function in the 5GHz band and/or the 2.4GHz band.

The slave modules in the slave AP device include two kinds, which may be referred to as a second slave module and a third slave module, respectively. The second slave module is used as an STA to be connected with the master AP equipment or other slave AP equipment through the coaxial cable interface, and the third slave module is used as an AP to provide a return link to the slave AP equipment connected with the downstream through the coaxial cable interface.

The STAs are typically clients in a WLAN, and each terminal connected to a wireless network, such as a notebook computer, palm top computer (Personal Digital Assistant, PDA) or other networked user device, may act as a STA.

The number of second and third slave modules may each be greater than or equal to 1. For example, the slave AP device may include 1 second slave module and 1 third slave module; alternatively, the slave AP device may include 1 second slave module and a plurality of third slave modules, that is, the slave AP device may be connected to other slave AP devices in parallel.

The slave AP equipment is divided into a plurality of modules, the master module is responsible for radio frequency coverage, the slave modules are responsible for cascading and back transmission, and the functions are decoupled, so that the complexity of the equipment can be reduced.

In some embodiments, the second main module includes a third 5G rf module, a second 2.4G rf module, and a second switch chip; the third 5G radio frequency module and the second 2.4G radio frequency module are respectively communicated with the second exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

the second slave module comprises a fourth 5G radio frequency module and a second coaxial cable interface; the fourth 5G radio frequency module is used as an STA to be connected with the master AP equipment or other slave AP equipment through the second coaxial cable interface, and the fourth 5G radio frequency module is communicated with the second exchange chip;

the third slave module comprises a fifth 5G radio frequency module and a third coaxial cable interface; the fifth 5G radio frequency module is configured to provide a backhaul link as an AP to a slave AP device connected downward through a third coaxial cable interface, and the fifth 5G radio frequency module is in communication with the second switching chip.

Specifically, in the case where the slave AP device includes 1 second slave module and 1 third slave module, the slave AP device provided in the present embodiment may be exemplarily described by taking the structure of the AP device shown in fig. 2 as an example. The master module of the slave AP device may refer to the master module illustrated in fig. 2, and the 2 slave modules of the slave AP device may refer to the left module and the right module illustrated in fig. 2, wherein the left module and the right module have the same structure, but the functions of the left module and the right module are different in the slave AP device.

For example, the left module may act as a STA to connect up to a master AP device or other slave AP devices through the left subinterface, and the right module may act as an AP to provide backhaul links to the downstream slave AP devices through the right subinterface.

In some embodiments, a third coaxial cable interface in the slave AP device at each end of the path among a plurality of slave AP devices that are demultiplexed and cascaded on the master AP device connects to the attenuator.

For example, a slave AP device is in the structure shown in fig. 2, and is a slave AP device at a certain end of the path, and if the right module of the slave AP device is used as an AP to provide a backhaul link to a downstream slave AP device through a right sub-interface, the right sub-interface in the right module of the slave AP device may be connected with an attenuator, that is, the attenuator is used for blocking, so as to avoid external radio frequency interference.

In some embodiments, the method for initializing the master AP device includes:

after the master AP equipment is powered on, the first master module and the plurality of first slave modules complete VLAN configuration, and the VLAN configuration is used for communication between the first master module and the plurality of first slave modules;

the first slave module initiates registration to the first master module, and after the registration is successful, the first master module configures the first slave module to enable radio frequency and work in an AP mode.

In particular, a virtual local area network (Virtual Local Area Network, VLAN) Identification (ID) may uniquely identify 4096 VLANs, where VLAN4095 is reserved, but is only system-used and cannot be viewed and used by a user. In some embodiments, the modules within the master AP device may communicate internally with each other via VLAN 4095. Of course, the VLAN configuration may be another VLAN configuration other than the VLAN4095 configuration, and the present embodiment is not particularly limited as long as it can be used for communication between the first master module and the plurality of first slave modules.

After each module of the master AP equipment realizes communication, the slave module can initiate registration to the master module, after the registration is successful, the master module can configure the slave module to enable radio frequency and work in an AP mode, and the slave module transmits radio frequency signals outwards through a coaxial cable interface of the slave module for subsequent slave AP equipment to be connected.

Fig. 3 is a schematic diagram of an initialization flow of a master AP device provided by the present invention, as shown in fig. 3, where the master AP device includes a master module, a left module, and a right module (the left module and the right module are 2 slave modules), and after the master AP device is powered on, the master module, the left module, and the right module automatically complete vlan4095 configuration for internal communication between each other. The left module and the right module register with the main module, after the registration is successful, the main module configures the left module and the right module to enable the 5G radio frequency and work in an AP mode, and the left module and the right module transmit radio frequency signals outwards through a left sub interface and a right sub interface (coaxial cable interface). The left module and the right module can report heartbeat information periodically, so that the main module can know the working states of the left module and the right module through the heartbeat information.

In some embodiments, the method of initializing the slave AP device includes:

after the second slave module scans the SSID appointed in the coaxial cable interface and selects the corresponding radio frequency to establish a link, the second master module configures the third slave module to enable radio frequency and operate in an AP mode.

Specifically, in the embodiment of the present invention, each module inside the AP device implements internal communication between each other through VLAN configuration (for example, VLAN4095 configuration).

After each module of the slave AP device implements communication, the slave module may initiate registration with the master module. After the second slave module is successfully registered, the second master module of the slave AP device may configure the second slave module to enable radio frequency and operate in STA mode.

The second slave module may scan a service set identifier (Service Set Identifier, SSID) specified in the coaxial cable interface, and analyze the scanned radio frequencies to select a radio frequency with a better signal to establish a link. For example: the radio frequency corresponding to the third slave module and the subordinate slave AP equipment can be removed from the scanned radio frequencies, and then the radio frequency with the optimal signal quality is selected from the rest radio frequencies to establish a link. The designated SSID can be flexibly set, and is only used for radio frequency signals transmitted in the coaxial cable.

After the second slave module selects the corresponding radio frequency to establish the link, the second master module of the slave AP equipment can configure the third slave module to enable radio frequency and work in the AP mode, and the third slave module transmits radio frequency signals outwards through the coaxial cable interface of the third slave module to be connected with the subsequent slave AP equipment.

Fig. 4 is a schematic diagram of an initialization flow of a slave AP device according to the present invention, as shown in fig. 4, where the slave AP device includes a master module, a left module, and a right module (the left module and the right module correspond to a second slave module and a third slave module respectively), and after the slave AP device is powered on, the master module, the left module, and the right module automatically complete vlan4095 configuration for internal communication between each other. The left module and the right module register with the main module, and after the registration is successful, the main module configures the left module to enable the 5G radio frequency and works in the STA mode. The left module scans the appointed SSID in the left sub-interface (coaxial cable interface), analyzes the scanned radio frequency, removes the radio frequency of the right module and the follow-up AP equipment, selects the optimal radio frequency from the rest radio frequencies and establishes a link with the optimal radio frequency. After the link is successfully established, the connection information is fed back to the main module, and the main module configures the right module to enable the 5G radio frequency and works in an AP mode for subsequent connection from the AP equipment. The left module and the right module can report heartbeat information periodically, so that the main module can know the working states of the left module and the right module through the heartbeat information.

Specifically, after the system initialization is completed, the master AP device and the master module of each slave AP device may register with the AC device through the link, and the AC device configures the ESSID and the corresponding VLAN. In order to achieve the purpose of communication isolation, in the wireless network coverage system provided by the embodiment of the invention, radio frequency sub-interfaces of all the AP devices (including the master AP device and the slave AP device) are configured in the same VLAN.

In some embodiments, the AC device may configure the ESSID and the corresponding VLAN to the master module of the master AP device, and then the master module of the master AP device configures the master module of each slave AP device to configure the designated radio frequency sub-interface and VLAN in the master module, and add the radio frequency sub-interface to the VLAN, and then configure the same VLAN and radio frequency sub-interface in the slave module, so as to ensure that the radio frequency sub-interfaces of all AP devices in the ESSID are in one VLAN.

In some embodiments, the AC device may configure the ESSID and the corresponding VLAN to the master module of the master AP device and the master module of each slave AP device, where the master module of each AP device configures the specified radio frequency subinterface and VLAN in the master module, adds the radio frequency subinterface to the VLAN, and then configures the same VLAN and radio frequency subinterface in the slave module, thereby ensuring that the radio frequency subinterfaces of all AP devices in the ESSID are in one VLAN.

In some embodiments, the AC device may configure the ESSID and the corresponding VLAN to the master module and the slave module of each AP device, where each module configures the corresponding VLAN and the radio frequency subinterface internally, so as to ensure that the radio frequency subinterfaces of all AP devices in the ESSID are in one VLAN.

In some embodiments, the AC device may configure the ESSID and the corresponding VLAN to the master module of the master AP device, and then the master module of the master AP device configures the master module of the slave AP device in the coverage area to the master module of the slave AP device, and the master module of the slave AP device configures the designated radio frequency subinterface and VLAN in the master module, and adds the radio frequency subinterface to the VLAN, and then the slave module configures the same VLAN and radio frequency subinterface, and the left module notifies the upper link module to configure the VLAN, so as to reciprocate until the master AP device, thereby ensuring that the radio frequency subinterfaces of all AP devices in the ESSID are in one VLAN.

On the other hand, the invention also provides an AP device, which can be used in the wireless network coverage system described in the above embodiments, where the AP device includes a master module and a plurality of slave modules communicatively connected to the master module;

Specifically, the AP device may include a plurality of slave modules, and in the case where the AP device includes 2 slave modules, the structure of the AP device may refer to the example shown in fig. 2.

As shown in fig. 2, the left module and the right module in the drawing are slave modules of the AP device, and have the same structure, and both the left module and the right module include a 5G radio frequency module and a coaxial cable interface (i.e., a left sub-interface and a right sub-interface in the drawing), and the 5G radio frequency module is communicated with the exchange module through a network bridge and an extension network port.

In some embodiments, the slave module's operating modes include STA mode and AP mode;

wherein, under the condition of being configured into an AP mode, the slave module is used for providing a return link for the downward connected AP equipment through the coaxial cable interface;

in the case of being configured in STA mode, the slave module is configured to connect to other AP devices via the coaxial cable interface.

For example, when the AP device is used as a master AP device, the slave modules may be configured in an AP mode, and provide backhaul links to the slave AP devices connected downward as an AP through the left and right subinterfaces.

For example, when the AP device is used as a slave AP device, the slave modules may be divided into two types, one configured into an AP mode, one configured into an STA mode, the slave module configured into the STA mode may be used as an STA to connect with the master AP device or other slave AP devices through the left subinterface, and the slave module configured into the AP mode may be used as an AP to provide a backhaul link to the downstream slave AP device through the right subinterface.

The AP equipment provided by the invention can be used for the wireless network coverage system of the embodiments, and the complexity of wiring is greatly reduced by transmitting signals and power in the coaxial cable, and the coaxial cable has the characteristics of good anti-interference, moisture resistance, durability and the like, and has a relatively good bandwidth, so that the AP equipment can be well applied to scenes with severe space environments such as underground closed spaces and the like, and the networking convenience, applicability and reliability of the wireless network coverage system are improved.

The system and device embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wireless network coverage system, comprising:

2. The wireless network coverage system of claim 1, wherein said master AP device comprises a first master module and a plurality of first slave modules communicatively coupled to said first master module;

3. The wireless network coverage system of claim 2, wherein,

the first main module comprises a first 5G radio frequency module, a first 2.4G radio frequency module and a first exchange chip; the first main module is in communication connection with the AC equipment through the first exchange chip, and the first 5G radio frequency module and the first 2.4G radio frequency module are respectively communicated with the first exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

4. The wireless network coverage system of claim 1, wherein said slave AP device comprises a second master module, a second slave module, and a third slave module;

5. The wireless network coverage system of claim 4, wherein,

the second main module comprises a third 5G radio frequency module, a second 2.4G radio frequency module and a second exchange chip; the third 5G radio frequency module and the second 2.4G radio frequency module are respectively communicated with the second exchange chip and are respectively used for providing wireless network coverage functions of a 5GHz frequency band and a 2.4GHz frequency band;

6. The wireless network coverage system of claim 5, wherein said third coaxial cable interface in a slave AP device at each end of said plurality of slave AP devices, said plurality of slave AP devices being in said demultiplexed cascade connection with said master AP device.

7. A wireless network coverage system according to claim 2 or 3, characterized in that said master AP device comprises two of said first slave modules.

8. A wireless network coverage system according to claim 2 or 3, wherein the method of initializing the master AP device comprises:

9. The wireless network coverage system according to claim 4 or 5, wherein the method of initializing the slave AP device comprises:

10. The wireless network coverage system of claim 1 wherein the radio frequency subinterfaces of each AP device are all configured within the same VLAN.

11. An AP device for use in the wireless network coverage system of any of claims 1 to 6, wherein said AP device comprises a master module and a plurality of slave modules communicatively coupled to said master module;

12. The AP device of claim 11, wherein the operation modes of the slave module include a STA mode and an AP mode;