WO2021083170A1 - Système de réseau sans fil - Google Patents

Système de réseau sans fil Download PDF

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Publication number
WO2021083170A1
WO2021083170A1 PCT/CN2020/124250 CN2020124250W WO2021083170A1 WO 2021083170 A1 WO2021083170 A1 WO 2021083170A1 CN 2020124250 W CN2020124250 W CN 2020124250W WO 2021083170 A1 WO2021083170 A1 WO 2021083170A1
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WO
WIPO (PCT)
Prior art keywords
mesh
network
end device
wireless
interface
Prior art date
Application number
PCT/CN2020/124250
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English (en)
Chinese (zh)
Inventor
王劼
苗永只
邹文娟
Original Assignee
杭州萤石软件有限公司
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Publication of WO2021083170A1 publication Critical patent/WO2021083170A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/04—Switchboards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a wireless network system.
  • Mesh network is a wireless fidelity (Wireless Fidelity, referred to as WIFI) network networking method.
  • WIFI Wireless Fidelity
  • the standard Mesh protocol and network card driver only provide an original data channel for Mesh devices that support the Mesh function, so that the Mesh device can access the wireless network through the network card driver.
  • the wireless network system may include Mesh devices that support the Mesh function and non-Mesh devices that do not support the Mesh function.
  • the wireless network system includes both Mesh devices and non-Mesh devices, how to form an effective wireless network system, and what role each Mesh device plays in the wireless network system, there is currently no effective solution.
  • the embodiment of the present application provides a wireless network system to overcome the lack of applicability of the Mesh network.
  • the embodiments of the present application provide a Mesh network that lacks applicability, including:
  • Network front-end equipment and network back-end equipment where the network front-end equipment includes Mesh front-end equipment and non-Mesh front-end equipment;
  • the network back-end device is used to provide a local area network access point or a network gateway access point;
  • the Mesh front-end device and the non-Mesh front-end device are respectively connected to the network back-end device wirelessly, and are used to access the Internet through the network back-end device.
  • the Mesh front-end equipment includes a Mesh interface and a wireless uplink interface
  • the non-Mesh front-end equipment includes a wireless uplink interface.
  • the network back-end device includes a non-Mesh back-end device
  • the non-Mesh back-end equipment includes an access point wireless downlink interface and a wired uplink interface.
  • the network front-end device further includes a first Mesh repeater and a second Mesh repeater;
  • the first Mesh repeater is used to provide a network relay node for the Mesh front-end device, so that the Mesh front-end device accesses a non-Mesh network through the first Mesh repeater, and the first Mesh relay
  • the device includes Mesh interface and wireless uplink interface
  • the first Mesh repeater is also used to allocate an Internet Protocol (IP) address to each of the Mesh front-end devices;
  • IP Internet Protocol
  • the second Mesh repeater is used to provide network relay nodes for the Mesh front-end equipment and the non-Mesh front-end equipment, so that the Mesh front-end equipment and the non-Mesh front-end equipment relay through the second Mesh
  • the device is connected to the Mesh network, and the second Mesh repeater includes a Mesh interface and a wireless downlink interface.
  • the non-Mesh back-end device establishes a wired network connection with the Internet through the wired uplink interface
  • the Mesh front-end device, the non-Mesh front-end device, and the first Mesh repeater respectively establish a wireless network connection with the wireless downlink interface of the non-Mesh back-end device through the respective wireless uplink interfaces;
  • the Mesh front-end equipment, the first Mesh repeater, and the second Mesh repeater establish a wireless network connection with each other through their respective Mesh interfaces;
  • the non-Mesh front-end device also establishes a wireless network connection with the wireless downlink interface of the second Mesh repeater through the wireless uplink interface.
  • the Mesh interface of the first Mesh repeater and the wireless uplink interface establish a connection through a bridge, so that data at the media access control (Media Access Control, MAC) layer can communicate with each other.
  • media access control Media Access Control, MAC
  • the network back-end device further includes a Mesh back-end device
  • the Mesh back-end device includes a Mesh interface, a wireless uplink interface, a wireless downlink interface, and a wired uplink interface.
  • the Mesh back-end device is also used to allocate an IP address to each of the Mesh front-end devices.
  • the network front-end device further includes a third Mesh repeater
  • the third Mesh repeater is used to provide network relay nodes for the Mesh front-end equipment and the non-Mesh front-end equipment, so that the Mesh front-end equipment and the non-Mesh front-end equipment relay through the third Mesh
  • the device is connected to the Mesh network, and the third Mesh repeater includes a Mesh interface and a wireless downlink interface.
  • the non-Mesh back-end device establishes a wired network connection with the Internet through a wired uplink interface of the non-Mesh back-end device;
  • the Mesh back-end device establishes a network connection with the non-Mesh back-end device through a wired uplink interface or a wireless uplink interface of the Mesh back-end device;
  • the Mesh front-end device and the non-Mesh front-end device respectively establish a wireless network connection with the wireless downlink interface of the non-Mesh back-end device through the respective wireless uplink interfaces;
  • the non-Mesh front-end device further establishes a wireless network connection with the wireless downlink interface of the third Mesh repeater and the wireless downlink interface of the Mesh back-end device through the wireless uplink interface of the non-Mesh front-end device;
  • the Mesh front-end device, the third Mesh repeater, and the Mesh back-end device establish a wireless network connection with each other through their respective Mesh interfaces.
  • the Mesh interface and the wireless downlink interface of the Mesh back-end device establish a connection at the MAC layer through a bridge, so that the MAC layer can communicate with each other;
  • the Mesh interface and the wireless downlink interface for establishing the bridge are connected with the wireless uplink interface or the wired uplink interface of the network back-end device through an IP management tool, so as to enable the IP layer data intercommunication.
  • An embodiment of the present application provides a wireless network system, including: a network front-end device and a network back-end device.
  • the network front-end device includes a Mesh front-end device and a non-Mesh front-end device.
  • the network back-end equipment is used to provide LAN access points or network gateway access.
  • Mesh front-end equipment and non-Mesh front-end equipment are respectively connected to the network back-end equipment wirelessly, and access the Internet through the network back-end equipment.
  • the wireless network system provided by the embodiment of the present application is an effective wireless network system including Mesh devices to ensure the applicability of the Mesh network.
  • FIG. 1 is a system schematic diagram of a smart home system provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the overall system of the wireless network system provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a wireless network system including a non-Mesh back-end device and a Mesh back-end device provided by an embodiment of the application;
  • FIG. 4 is a schematic diagram of a non-Mesh back-end device interface provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a wireless network system that does not include a Mesh device according to an embodiment of the application.
  • the Mesh network is a WIFI network networking method, which is a wireless "multi-hop" network based on the 802.11s protocol.
  • the Mesh network is different in that: in the Mesh network, every two nodes can be connected to each other, each node can have multiple connection channels, and the connection between all nodes is formed An overall mesh network.
  • the Mesh function is a function implemented by the Mesh protocol.
  • Mesh devices are wireless devices that support the Mesh function, and can also be understood as wireless devices that support the Mesh protocol.
  • Non-Mesh devices are wireless devices that do not support the Mesh function, and can also be understood as wireless devices that do not support the Mesh protocol.
  • non-Mesh devices construct a common WIFI network (that is, a non-Mesh network), and Mesh devices construct a Mesh network, and each Mesh device is a node in the Mesh network.
  • Non-Mesh devices do not support the Mesh function. Based on this, mesh devices cannot communicate with non-Mesh devices, and the non-Mesh network and the Mesh network are two independent LANs.
  • wireless devices connected to the Ethernet are generally non-Mesh devices. Since the Mesh devices cannot communicate with non-Mesh devices, the Mesh devices cannot access the Ethernet, resulting in the lack of applicability of the Mesh network.
  • the embodiments of the present application provide a wireless network system to improve the applicability of the Mesh network, so as to provide a complete and applicable wireless network system in the field of smart furniture.
  • Figure 1 is a system schematic diagram of the smart home system provided by this application, as shown in Figure 1:
  • the smart home system includes a router, and the router is connected to the Ethernet through a wired link, so that each wireless device in the smart home system can realize network connection.
  • the router is a non-Mesh device.
  • the wireless devices in the smart home system may include wireless network cameras (Internet Protocol Camera, IPC), network hard disk video recorders (Network Video Recorder, NVR), gateway devices, alarm sensors, child care equipment, smart door locks, and mobile phones, Terminal equipment such as computers and tablets.
  • IPC Internet Protocol Camera
  • NVR Network Video Recorder
  • gateway devices alarm sensors, child care equipment, smart door locks, and mobile phones, Terminal equipment such as computers and tablets.
  • non-Mesh back-end devices are network management devices that do not support Mesh functions, such as routers.
  • the wireless devices in the smart home system include devices that support the Mesh function. Devices that support the Mesh function can connect to the network through the interconnection between Mesh devices.
  • the specific types of wireless devices included in the smart home system are not limited to the wireless devices introduced in Figure 1.
  • the specific implementation can be selected according to actual needs.
  • the smart home device can connect to the network, it can be considered It is a wireless device in the smart home system in the embodiment of this application.
  • the wireless network cameras, network hard disk recorders, and gateway devices shown in Figure 1 not only serve as terminal devices that play their specific roles, but also can be used as network access points under the premise that they are configured with Mesh functions, thus making smart homes
  • the rest of the devices in the system can access the network through the network access point.
  • the network access point has the same function as the router.
  • Fig. 2 is a schematic diagram of the overall system of the wireless network system provided by an embodiment of the application. As shown in Fig. 2, the system includes:
  • a network front-end device 10 and a network back-end device 20 includes a Mesh front-end device 101 and a non-Mesh front-end device 102;
  • the network back-end device 20 is used to provide access to a local area network access point or a network gateway;
  • the Mesh front-end device 101 and the non-Mesh front-end device 102 are respectively connected to the network back-end device 20 wirelessly, and are used to access the Internet through the network back-end device 20.
  • the network front-end device 10 is a wireless device used to perform a specific function, such as a mobile phone, a computer, a tablet, a smart door lock, and the like described in the embodiment shown in FIG. 1 above.
  • the network front-end device 10 is a device connected to the network to perform specific functions.
  • the network front-end device 10 may include a Mesh front-end device 101 and a non-Mesh front-end device 102.
  • the Mesh front-end device 101 is a network front-end device that supports the Mesh function
  • the non-Mesh front-end device 102 is a network front-end device that does not support the Mesh function.
  • the specific implementation manners of the Mesh front-end device 101 and the non-Mesh front-end device 102 can be selected according to requirements.
  • the embodiment of the present application does not limit the types of specific devices corresponding to the Mesh front-end device 101 and the non-Mesh front-end device 102.
  • the network back-end device 20 in the embodiment of the present application is used to provide a local area network access point or a network gateway access point, where the local area network access point refers to the current local area network, and the network gateway access point refers to the local area network and the external network
  • the connection is equivalent to the connection point from the local area network to the external network.
  • NVR can be used as a network back-end device, which is used to provide LAN access points, which can be connected to IPC to form a LAN with IPC.
  • a router as a network back-end device, which can be used as both a local area network access point and a network gateway access point.
  • a LAN access point refers to a device that accesses a local area network
  • a network gateway access point refers to a device that accesses an external network (such as the Internet).
  • the non-Mesh back-end devices, wireless network cameras, and network hard disk recorders introduced in the embodiment shown in FIG. 1 can all be used as the network back-end devices 20.
  • a certain device can serve as a local area network access point or a network gateway access point to provide a network connection to the network front-end device 10, it can be used as the network back-end device 20.
  • the specific implementation manner of the network back-end device 20 can be arbitrarily extended on this basis, which is not limited in the embodiment of the present application.
  • the alarm sensor in FIG. 1 can only be used as a network front-end device 10 to realize the alarm function. At this time, other devices in the smart home system cannot access the network through the alarm sensor.
  • the alarm sensor in FIG. 1 can also only be used as a network back-end device 20 to provide network connections to other wireless devices. At this time, the alarm sensor no longer needs to realize the alarm function, and only needs to process the network connection and the uplink data transmission and the downlink data transmission. That is, the alarm sensor only needs to provide network connections for other devices in the smart home system.
  • the alarm sensor can be used as the network front-end device 10 to realize the alarm function, and the alarm sensor can also be used as the network back-end device 20 to provide network connections to other devices.
  • the network front-end device 10 and the network back-end device 20 in the embodiments of the present application can select each wireless device according to actual needs, which is not particularly limited here.
  • a wireless device needs to be set as the network back-end device 20
  • the wireless device needs to be guaranteed when the network back-end device 20 is selected. It can effectively complete the network connection, thereby ensuring the stability of the wireless network system.
  • the Mesh front-end device 101 and the non-Mesh front-end device 102 are respectively connected to the network back-end device 20 wirelessly.
  • the Mesh front-end device 101 and the non-Mesh front-end device 102 are used to access the Internet through the network back-end device 20, so that both the Mesh front-end device and the non-Mesh front-end device can realize effective wireless network connection to ensure the applicability of the Mesh network.
  • Both Mesh front-end equipment and non-Mesh front-end equipment can communicate with the network back-end equipment 20, and then through the network back-end equipment 20, the Mesh front-end equipment and the non-Mesh front-end equipment can communicate with each other, and through the network back-end equipment 20, the Mesh front-end equipment communicates with each other.
  • Non-Mesh front-end equipment is connected to the network.
  • the Mesh front-end equipment and the non-Mesh front-end equipment form a complete local area network, and both the Mesh front-end equipment and the non-Mesh front-end equipment in the local area network can access the Ethernet, which ensures the applicability of the Mesh network.
  • the wireless network system includes: a network front-end device and a network back-end device.
  • the network front-end device includes a Mesh front-end device and a non-Mesh front-end device.
  • the network back-end device is used to provide a local area network access point or a network gateway access point.
  • Mesh front-end equipment and non-Mesh front-end equipment are respectively connected to the network back-end equipment wirelessly, and access the Internet through the network back-end equipment.
  • the wireless network system provided by the embodiment of the present application is an effective wireless network system including Mesh devices to ensure the applicability of the Mesh network.
  • the network back-end devices in the embodiments of this application may include both non-Mesh back-end devices and Mesh back-end devices, or may also include only non-Mesh back-end devices.
  • the two situations are introduced separately.
  • Figure 3 provides an embodiment of this application and includes both non-Mesh back-end equipment and Mesh back-end equipment.
  • FIG. 4 is a schematic diagram of a non-Mesh back-end device interface provided in an embodiment of this application.
  • the double-dot sliding line represents the Mesh network connection
  • the dashed line represents the non-Mesh network connection
  • the thick solid line represents the wired network connection.
  • the network back-end equipment 20 of the wireless network system includes both non-Mesh back-end equipment and Mesh back-end equipment.
  • the network front-end device 10 includes multiple Mesh front-end devices, multiple non-Mesh front-end devices, and a third Mesh repeater.
  • the specific numbers of Mesh front-end equipment, non-Mesh front-end equipment, and third Mesh repeaters are determined according to actual needs.
  • the specific numbers of Mesh front-end equipment, non-Mesh front-end equipment, and third Mesh repeaters The number depends on what devices are specifically included in the current wireless network system and what each device is used for.
  • the number of Mesh front-end devices, non-Mesh front-end devices, and the number of third Meshes and their connection relationships in FIG. 3 are only exemplary descriptions, and are not limited to their implementation manners.
  • each network back-end device and each network front-end device is realized through a software interface set inside it.
  • the following describes in detail the interfaces included in each network back-end device and each network front-end device, and the connection mode between the interfaces in conjunction with FIG. 3.
  • Mesh front-end equipment includes Mesh interface and wireless uplink interface.
  • the wireless uplink interface may be a station (station, STA) interface.
  • Non-Mesh front-end equipment includes wireless uplink interfaces.
  • the Mesh interface is an interface that supports the Mesh protocol
  • the wireless uplink interface is an interface that supports the non-Mesh protocol.
  • a wireless device with a wireless uplink interface can connect to a local area network access point or a network gateway access point through a wireless uplink interface, thereby connecting to a non-Mesh network (that is, an ordinary wireless network), or to the Internet; those with a Mesh interface
  • the device can establish a Mesh network with other devices with Mesh interfaces through the Mesh interface. That is to say, the devices with Mesh interfaces can establish Mesh networks with each other, which is equivalent to constructing a small Mesh LAN without Mesh interfaces. The device cannot connect to the Mesh network.
  • the network back-end device In the embodiment of the present application, only the network back-end device is directly connected to the Internet, and the network front-end device must be wirelessly connected to the network back-end device to be able to access the Internet. However, if each network front-end device is connected to the network back-end device, it will cause the network back-end device to carry too much load. At the same time, when the network front-end device is far away from the network back-end device, the network connection cannot be realized. Therefore, an effective network connection can be realized by setting up a network relay node.
  • the network front-end device in the embodiment of the present application may further include a third Mesh repeater.
  • the third Mesh repeater is used to provide network relay nodes for Mesh front-end equipment and non-Mesh front-end equipment, so that Mesh front-end equipment and non-Mesh front-end equipment can access the Mesh network through the third Mesh repeater, thereby reducing the network
  • the connection load of the back-end equipment also avoids the problem that the network connection cannot be realized when the front-end equipment of the network and the back-end equipment of the network are far away.
  • the third Mesh repeater includes a Mesh interface and a wireless downlink interface.
  • the wireless downlink interface is an interface that supports non-Mesh protocols.
  • a device with a wireless downlink interface can connect other devices to a wireless network (such as a non-Mesh network) through the wireless downlink interface. It is understandable that a device with a wireless downlink interface is equivalent to a network bridge. The main function of a device with a wireless downlink interface is to connect devices including a wireless uplink interface to the network.
  • the third Mesh repeater can act as a relay node between each Mesh front-end device, so that Mesh networks can communicate with each other.
  • the non-Mesh front-end equipment can establish a connection with the third Mesh repeater through the wireless upstream interface through the wireless uplink interface, then the third Mesh repeater can be used in the Mesh front-end equipment and the non-Mesh front-end equipment It serves as a relay node to enable non-Mesh front-end devices to access the Mesh network, thereby realizing the Mesh network connection.
  • the third Mesh repeater establishes a connection with the Mesh front-end device through the Mesh interface, so that the third Mesh repeater accesses the Mesh network through the Mesh interface.
  • the third Mesh repeater is connected to the non-Mesh front-end device through the wireless downlink interface, so that the third Mesh repeater is connected to the non-Mesh network through the wireless downlink interface.
  • the Mesh interface of the third Mesh repeater and the wireless downlink interface are connected through a bridge.
  • the third Mesh repeater will receive the data from the Mesh network through the Mesh interface.
  • the data from the Mesh network will be converted to non-Mesh network data, and the converted non-Mesh network data will be transmitted to the wireless downlink interface through the bridge. Send the converted non-Mesh network data to the non-Mesh network through the wireless downlink interface.
  • the third Mesh repeater will receive data from the non-Mesh network through the wireless downlink interface, convert the data from the non-Mesh network into the data of the Mesh network in the future, and transmit the converted Mesh network data to the Mesh interface through the bridge, and then Send the converted Mesh network data to the Mesh network through the Mesh interface.
  • the communication between the Mesh network and the non-Mesh network is realized, and it is ensured that the Mesh network and the non-Mesh network form a complete local area network.
  • the non-Mesh back-end device includes a wireless downlink interface and a wired uplink interface.
  • the wired uplink interface is a hardware physical interface.
  • the wired uplink interface may include a wired local area network (Local Area Network, LAN) interface, a wired wide area network (Wide Area Network, WAN) interface, and so on.
  • the interface indicated by the dashed rectangle is the wired uplink interface.
  • the wired uplink interface is a pluggable hardware physical interface set on a non-Mesh back-end device.
  • a non-Mesh back-end device can connect a wired uplink interface to an Internet interface provided by a network card or a switch through a network cable, so that the wireless network system can access the Internet upstream.
  • the Mesh back-end equipment includes a Mesh interface, a wireless uplink interface, a wireless downlink interface, and a wired uplink interface.
  • the wireless device when a certain wireless device includes a wireless uplink interface, the wireless device can be used as a terminal device to access the wireless network; when a certain wireless device includes a wireless downlink interface , The wireless device can be used as a local area network access point or a network gateway access point in the wireless network to connect the terminal equipment in the wireless network system to the Internet. Therefore, take two wireless devices, the first device and the second device, as an example.
  • the wireless uplink interface of the first device can be connected to the wireless downlink interface of the second device, so that the first device can connect to the wireless network through the second device; each device including the Mesh interface can be connected to each other to establish a Mesh network.
  • a wireless network connection is realized between the devices including the Mesh interface.
  • the non-Mesh back-end equipment establishes a wired network connection with the Internet through the wired uplink interface, so that the wireless network system can be connected to the Internet, that is to say, the non-Mesh back-end equipment is used as the exit of the local area network constructed by the wireless network system to realize the wireless network system Uplink transmission of data in the wireless network system to the Internet.
  • non-Mesh back-end devices can serve as network gateway access points.
  • Mesh back-end devices establish a wireless network connection with the wireless downlink interface of non-Mesh back-end devices through wireless uplink interfaces, so that both non-Mesh back-end devices and Mesh back-end devices can provide access points for network connections to network front-end devices.
  • the Mesh back-end device can also establish a wired network connection with the Internet through a wired uplink interface, and its implementation is similar to the non-Mesh back-end device.
  • the Mesh back-end device can serve as the network gateway access point.
  • Mesh front-end devices and non-Mesh front-end devices establish wireless network connections with the wireless downlink interfaces of non-Mesh back-end devices through their respective wireless uplink interfaces, then Mesh front-end devices and non-Mesh front-end devices can realize wireless networks through non-Mesh back-end devices connection. That is, Mesh front-end devices and non-Mesh front-end devices can access the Internet through non-Mesh back-end devices.
  • the non-Mesh front-end device also establishes a wireless network connection with the wireless downlink interface of the third Mesh repeater and the wireless downlink interface of the Mesh back-end device through the wireless uplink interface.
  • the non-Mesh front-end device when the non-Mesh front-end device establishes a wireless network connection with the wireless downlink interface of the third Mesh repeater through the wireless uplink interface, the non-Mesh front-end device can access the Mesh network through the third Mesh repeater;
  • the Mesh front-end device When the Mesh front-end device establishes a wireless network connection with the wireless downlink interface of the Mesh back-end device through the wireless uplink interface, the non-Mesh front-end device can access the non-Mesh network and the Mesh network through the Mesh back-end device.
  • the Mesh front-end device, the third Mesh repeater, and the Mesh back-end device establish a wireless network connection with each other through their respective Mesh interfaces.
  • the Mesh front-end equipment, the third Mesh repeater, and the Mesh back-end equipment all include Mesh interfaces.
  • Devices that include Mesh interfaces can build a Mesh network, so that a Mesh network can be established between the Mesh front-end device, the third Mesh repeater, and the Mesh back-end device. It is understandable that because the non-Mesh front-end device does not include a Mesh interface, the non-Mesh front-end device cannot be connected to the Mesh network, but it can realize data intercommunication with the Mesh network through the third Mesh repeater.
  • the wireless network system including the Mesh device will be further introduced in detail from the perspective of data transmission in the wireless network.
  • Non-Mesh front-end devices collect data locally, and connect to the wireless downlink interfaces of non-Mesh back-end devices through wireless uplink interfaces, and the wireless downlink interfaces of Mesh back-end devices. Or the wireless downlink interface of the third Mesh repeater to realize wireless network connection.
  • Non-Mesh front-end equipment can transmit the collected data to the back-end equipment of the network through a wireless network connection.
  • Non-Mesh front-end devices can also obtain network data from back-end devices through a wireless network connection.
  • the Mesh front-end device collects data locally, and can be connected to the Mesh back-end device or a third Mesh repeater through the Mesh interface to achieve access to the Mesh network.
  • the Mesh front-end device can also connect to the wireless downlink interface of the non-Mesh back-end device through the wireless uplink interface, or the wireless downlink interface of the third Mesh repeater, so as to realize access to the wireless network.
  • the Mesh front-end equipment transmits the collected data to the back-end equipment of the network through a wireless network connection.
  • Mesh front-end devices can also obtain network data from network back-end devices through wireless network connections.
  • the third Mesh repeater is the third Mesh repeater
  • the third Mesh repeater is connected upstream to the Mesh network (including Mesh back-end equipment and Mesh front-end equipment), and downstream to non-Mesh front-end equipment.
  • a network relay node that is, a third Mesh repeater
  • a third Mesh repeater can be provided for the Mesh front-end device or non-Mesh front-end device.
  • the corresponding form of the interface group of the Mesh back-end device is: Mesh interface + wireless downlink interface + wireless uplink interface + wired uplink interface.
  • Mesh back-end equipment realizes Mesh network connection through Mesh interface, and realizes wireless network connection through wireless downlink interface and wireless uplink interface.
  • traditional terminal devices such as mobile phones can be connected to the wireless downlink interface of the Mesh back-end device through the wireless uplink interface to access and obtain data on any wireless device in the Mesh network; when the Mesh back-end device is connected to the Internet , Traditional terminal devices such as mobile phones can also access any wireless device in the Mesh network through the 4G/5G network.
  • the Mesh interface of the Mesh back-end device and the wireless downlink interface establish a connection at the Media Access Control (MAC) layer through a bridge, so that the data in the wireless network system can communicate at the MAC layer (that is, layer 2 interoperability).
  • the wireless downlink interface and the wireless uplink interface or wired uplink interface of the Mesh back-end equipment and the bridged Mesh interface are connected through the IP management tool, so that the data in the wireless network system can communicate at the IP layer (that is, the three-layer interoperability) .
  • the IP management tool can be an iptable firewall.
  • the Mesh back-end device may also be used to allocate an IP address to each Mesh front-end device in the Mesh network.
  • the Mesh back-end device correspondingly manages a Dynamic Host Configuration Protocol (DHCP) server, thereby assigning an IP address to each Mesh front-end device according to the DHCP server.
  • DHCP Dynamic Host Configuration Protocol
  • some protocols must rely on the direct transmission of the Layer 2 network, and in order to facilitate the management of the DHCP server, in the embodiment of the present application, in the Mesh back-end device, the connection established through the bridge method and the connection established through the iptable can coexist.
  • Non-Mesh back-end equipment establishes a wired network connection with the Internet through a wired uplink interface, and realizes a wireless network connection through a wireless downlink interface and a wired uplink interface.
  • MAC layer data intercommunication is realized by bridging
  • IP layer data intercommunication is realized by iptable, so that Mesh network and non-Mesh network can realize data intercommunication locally, so as to improve the interoperability of the wireless network system.
  • the non-Mesh back-end device establishes a wired network connection with the Internet through a wired uplink interface.
  • Mesh back-end devices establish network connections with non-Mesh back-end devices through wired uplink interfaces or wireless uplink interfaces.
  • Mesh front-end devices and non-Mesh front-end devices establish wireless network connections with the wireless downlink interfaces of non-Mesh back-end devices through their respective wireless uplink interfaces.
  • the non-Mesh front-end device can also establish a wireless network connection with the wireless downlink interface of the third Mesh repeater and the wireless downlink interface of the Mesh back-end device through the wireless uplink interface.
  • the Mesh front-end device, the third Mesh repeater, and the Mesh back-end device can establish a wireless network connection with each other through their respective Mesh interfaces.
  • the Mesh interface of the Mesh back-end device or the third Mesh repeater and the wireless downlink interface establish a connection at the MAC layer through a bridge, so that the MAC layer can communicate with each other.
  • An effective wireless network connection is constructed when the front-end equipment is used.
  • the data intercommunication between the Mesh network and the ordinary wireless network can be realized to improve the interoperability of the wireless network system.
  • FIG. 5 is a schematic diagram of a wireless network system that does not include Mesh devices provided by an embodiment of the application. As shown in Figure 5:
  • the non-Mesh back-end equipment, Mesh front-end equipment, and non-Mesh front-end equipment in the embodiment shown in FIG. 5 are the same as those introduced in the embodiment in FIG. Highlights.
  • the double-dot sliding line represents the Mesh network connection
  • the dashed line represents the non-Mesh network connection
  • the thick solid line represents the wired network connection.
  • the difference between Figure 3 and Figure 5 is that the network back-end devices of the wireless network system in Figure 5 only include non-Mesh back-end devices, and then Mesh front-end devices and non-Mesh front-end devices can respectively use their respective wireless uplinks.
  • the interface establishes a wireless network connection with the wireless downlink interface of the non-Mesh back-end device.
  • Figure 5 does not include the Mesh back-end equipment, but the Mesh front-end equipment and the Mesh repeaters in Figure 5 also need to build a Mesh network between each other. Therefore, the embodiment of this application introduces a first Mesh repeater, where the first Mesh repeater is used to provide a network relay node for the Mesh front-end device, so that the Mesh front-end device can access the non-Mesh network through the first Mesh repeater .
  • the first Mesh repeater includes a Mesh interface and a wireless uplink interface.
  • the first Mesh repeater includes a wireless uplink interface
  • the first Mesh repeater can establish a wireless network connection with the wireless downlink interface of a non-Mesh back-end device through the wireless uplink interface, thereby realizing the access of the first Mesh repeater Internet.
  • the first Mesh repeater also includes a Mesh interface
  • the Mesh repeater and Mesh front-end equipment in the wireless network system can establish a Mesh network connection with the first Mesh repeater through the Mesh interface, thereby realizing a Mesh network.
  • the Mesh front-end device can access a non-Mesh network (that is, a normal wireless network) through the first Mesh repeater.
  • the construction of a Mesh network and a non-Mesh network can also be achieved without setting a Mesh back-end device, thereby increasing the flexibility of the wireless network system.
  • the second Mesh repeater in the embodiment of the present application has the same function and interface as the third Mesh repeater in the embodiment of FIG. 3, so it will not be repeated here, and its specific implementation can be referred to the above-mentioned embodiment. Introduction.
  • the Mesh back-end device is responsible for assigning IP addresses to each Mesh front-end device.
  • the first Mesh repeater can also be used for each Mesh.
  • the front-end equipment assigns an IP address.
  • the first Mesh repeater provides a DHCP server allocation service to allocate IP addresses to each wireless device in the Mesh network.
  • multiple first Mesh repeaters can be set in the Mesh network to provide multiple DHCP server distribution services to provide multiple network outlets for the Mesh network.
  • Figure 3 In terms of only the Mesh back-end equipment as the network outlet), it plays a role in load balancing.
  • the interfaces included in the first Mesh repeater are Mesh interfaces and wireless uplink interfaces
  • the interfaces included in the Mesh front-end equipment are also Mesh interfaces and wireless uplink interfaces.
  • a connection is established between the Mesh interface of the Mesh repeater and the wireless uplink interface by means of bridging, so as to realize the MAC layer data intercommunication between the Mesh interface and the wireless uplink interface (ie, Layer 2 intercommunication).
  • the wireless uplink interface is connected to the wireless downlink interface
  • the Mesh interface is connected to the Mesh interface, so that the first Mesh repeater acts as a bridge between the Mesh network and the ordinary wireless network, so that the ordinary wireless network and the Mesh network can be merged together to realize the ordinary Data intercommunication between wireless network and Mesh network.
  • the Mesh front-end device can act as the first Mesh repeater, thereby improving the wireless network system's performance. Scalability.
  • the wireless network system establishes a wired network connection with the Internet through a wired uplink interface through a non-Mesh back-end device.
  • the Mesh front-end device, the non-Mesh front-end device, and the first Mesh repeater respectively establish a wireless network connection with the wireless downlink interface of the non-Mesh back-end device through their respective wireless uplink interfaces.
  • the Mesh front-end equipment, the first Mesh repeater, and the second Mesh repeater establish a wireless network connection with each other through their respective Mesh interfaces.
  • the non-Mesh front-end device can also establish a wireless network connection with the wireless downlink interface of the second Mesh repeater through the wireless uplink interface.
  • the first Mesh repeater realizes the integration of the normal wireless network and the Mesh network, so that the wireless network system can also be effectively constructed without including the Mesh back-end equipment, thereby improving the flexibility of the wireless network system.
  • wireless networks include Mesh networks and non-Mesh networks.
  • Non-Mesh networks can also be called ordinary wireless networks.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un système de réseau sans fil, comprenant : un dispositif frontal de réseau et un dispositif dorsal de réseau, le dispositif frontal de réseau comprenant un dispositif frontal maillé et un dispositif frontal non maillé, le dispositif dorsal de réseau étant utilisé pour fournir un accès à un point d'accès de réseau local ou à une passerelle de réseau, et le dispositif frontal maillé et le dispositif frontal non maillé étant respectivement en connexion réseau sans fil avec le dispositif dorsal de réseau, et étant utilisés pour accéder à Internet au moyen du dispositif dorsal de réseau. On accède à Internet au moyen du dispositif dorsal de réseau, et dans le même temps, le dispositif frontal maillé et le dispositif frontal non maillé sont respectivement en connexion réseau sans fil avec le dispositif dorsal de réseau, ce qui permet d'accéder à Internet au moyen du dispositif dorsal de réseau, de mettre en œuvre une connexion réseau sans fil efficace lorsque le système comprend à la fois le dispositif frontal maillé et le dispositif frontal non maillé, et parallèlement un système de réseau sans fil efficace pour un dispositif maillé est fourni, de façon à assurer l'applicabilité du réseau maillé.
PCT/CN2020/124250 2019-10-28 2020-10-28 Système de réseau sans fil WO2021083170A1 (fr)

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