Network equipment, forwarding method and medium

Abstract

The embodiment of the invention discloses network equipment, a forwarding method and a medium, relates to the technical field of communication, and solves the problem of relatively high deployment cost during fixed broadband access. According to the specific scheme, the network equipment comprises a wireless module which is used for receiving a first wireless signal and converting the first wireless signal into a first electric signal; one end of the main control module is electrically connected with the wireless module, and the main control module is used for receiving the first electric signal from the wireless module and converting the first electric signal into a second electric signal; one end of the optical module is electrically connected with the other end of the master control module, the other end of the optical module is optically connected with a plurality of optical network units (ONUs), the optical module is used for converting the second electric signal into a first optical signal and sending the first optical signal to the first ONU, and the first ONU is one of the ONUs.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and in particular, to a network device, a forwarding method, and a medium. Background Art

[0002] Currently, when performing fixed broadband access, it is usually possible to deploy 1 customer premises equipment (CPE) for each user, so that the base station and the CPE of each user form an access network.

[0003] However, for the above broadband access method of configuring 1 CPE for each user, due to the large number of wireless CPEs used, the high overall machine price may cause a certain burden on the business development of operators, and there is a lack of investment in 5G base stations and insufficient 5G signal coverage in some areas. Therefore, while resulting in higher capital expenditure (capex), it will also lead to problems such as a smaller overall network capacity and lower bandwidth utilization of fixed wireless access (FWA). Summary of the Invention

[0004] Embodiments of the present application provide a network device, a forwarding method, and a medium to solve the problem of high deployment cost during fixed broadband access.

[0005] To achieve the above objective, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect of the embodiments of the present application, a network device is provided. The network device includes:

[0007] A wireless module, configured to receive a first wireless signal and convert the first wireless signal into a first electrical signal;

[0008] A main control module, one end of which is electrically connected to the wireless module. The main control module is configured to receive the first electrical signal from the wireless module and convert the first electrical signal into a second electrical signal;

[0009] An optical module, one end of which is electrically connected to the other end of the main control module, and the other end of which is optically connected to multiple optical network units (ONUs). The optical module is configured to convert the second electrical signal into a first optical signal and send the first optical signal to a first ONU, where the first ONU is one of the multiple ONUs.

[0010] The network device provided by the embodiment of the present application is connected to multiple ONU devices through the optical module of the network device. Therefore, multiple ONU devices can transmit packets to devices such as base stations through one network device, without the need to configure a CPE for each ONU device, thereby reducing the number of network devices used, reducing the deployment cost, and improving the overall network capacity and bandwidth utilization rate of FWA at the same time.

[0011] In a possible implementation manner in combination with the first aspect, the first electrical signal is an Ethernet frame, and the second electrical signal is a PON protocol packet.

[0012] In a possible implementation manner in combination with the first aspect and the above possible implementation manner, the main control module includes:

[0013] A main controller, one end of the main controller is electrically connected to the wireless module, and the main controller is used to determine the first ONU and forward the first electrical signal to an Optical Line Terminal (OLT) chip. The first ONU is the ONU corresponding to the first electrical signal.

[0014] An OLT chip, one end of the OLT chip is electrically connected to the other end of the main controller, and the other end of the OLT chip is electrically connected to the optical module. The OLT chip is used to convert the first electrical signal into the second electrical signal, and the second electrical signal includes the port information corresponding to the first ONU.

[0015] In a possible implementation manner in combination with the first aspect and the above possible implementation manner, the main controller includes:

[0016] A forwarding acceleration module, one end of the forwarding acceleration module is electrically connected to the wireless module, and the other end of the forwarding acceleration module is electrically connected to the OLT chip. The forwarding acceleration module is used to determine the first ONU and perform forwarding acceleration processing on the first electrical signal.

[0017] In a possible implementation manner in combination with the first aspect and the above possible implementation manner, the optical module is further used to receive a second optical signal sent by the first ONU and convert the second optical signal into a third electrical signal;

[0018] The main control module is further used to receive the third electrical signal from the optical module and convert the third electrical signal into a fourth electrical signal;

[0019] The wireless module is further used to convert the fourth electrical signal into a second wireless signal and send the second wireless signal;

[0020] Among them, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0021] Combined with the first aspect and the above possible implementation manners, in a possible implementation manner, there is an OLT chip. One end of the OLT chip is electrically connected to the optical module, and the OLT chip is configured to convert the third electrical signal into the fourth electrical signal;

[0022] There is a main controller. One end of the main controller is electrically connected to the other end of the OLT chip, and the other end of the main controller is connected to the wireless module. The main controller is configured to determine the first ONU and forward the fourth electrical signal to the wireless module.

[0023] Combined with the first aspect and the above possible implementation manners, in a possible implementation manner, the main controller includes:

[0024] There is a forwarding acceleration module. One end of the forwarding acceleration module is electrically connected to the wireless module, and the other end of the forwarding acceleration module is electrically connected to the OLT chip. The forwarding acceleration module is configured to determine the first ONU and perform forwarding acceleration processing on the fourth electrical signal.

[0025] A second aspect of the embodiments of the present application provides a forwarding method applied to the network device as described in the first aspect. The method includes:

[0026] The network device receives a first wireless signal through the wireless module of the network device and converts the first wireless signal into a first electrical signal;

[0027] The network device receives the first electrical signal from the wireless module through the main control module of the network device and converts the first electrical signal into a second electrical signal;

[0028] The network device converts the second electrical signal into a first optical signal through the optical module of the network device and sends the first optical signal to a first ONU, where the first ONU is one of the multiple ONUs connected to the optical module of the network device.

[0029] For the forwarding method provided by the embodiments of the present application, since multiple ONU devices are connected through the optical module of the network device, multiple ONU devices can transmit messages to devices such as base stations through one network device, without each ONU device being configured with a CPE. Therefore, the number of network devices used is reduced, and while reducing the deployment cost, the overall network capacity and bandwidth utilization rate of FWA can also be improved.

[0030] In combination with the second aspect, in a possible implementation manner, the first electrical signal is an Ethernet frame, and the second electrical signal is a PON protocol message.

[0031] In combination with the second aspect and the above possible implementation manner, in another possible implementation manner, before sending the first optical signal to the first ONU, the method further includes:

[0032] The network device determines the first ONU through the main controller of the main control module, and forwards the first electrical signal to the optical line terminal OLT chip, where the first ONU is the ONU corresponding to the first electrical signal;

[0033] The network device converts the first electrical signal into the second electrical signal through the OLT chip of the main control module, and the second electrical signal includes the port information corresponding to the first ONU.

[0034] In combination with the second aspect and the above possible implementation manner, in another possible implementation manner, after the network device receives the first wireless signal through the wireless module of the network device, the method further includes:

[0035] The network device determines, through the main controller of the main control module, a first virtual interface corresponding to the first electrical signal from at least one virtual interface when it is determined that the first ONU is optically connected to the optical module;

[0036] The network device sends the first electrical signal to the forwarding acceleration module of the network device through the first virtual interface;

[0037] The network device performs forwarding acceleration processing on forwarding the first electrical signal through the forwarding acceleration module.

[0038] In combination with the second aspect and the above possible implementation manner, in another possible implementation manner, before the network device determines, through the main controller of the main control module, a first virtual interface corresponding to the first electrical signal from at least one virtual interface, the method further includes:

[0039] When the network device determines that the first ONU is optically connected to the optical module, the network device creates the first virtual interface through the main controller.

[0040] In combination with the second aspect and the above possible implementation manner, in another possible implementation manner, when the network device determines that the optical connection between the first ONU and the optical module is disconnected, the network device deletes the first virtual interface through the main controller.

[0041] Combined with the second aspect and the above possible implementation manners, in another possible implementation manner, the network device receives a second optical signal sent by the first ONU through an optical module of the network device, and converts the second optical signal into a third electrical signal;

[0042] The network device receives the third electrical signal from the optical module through a main control module of the network device, and converts the third electrical signal into a fourth electrical signal;

[0043] The network device converts the fourth electrical signal into a second wireless signal through a wireless module of the network device, and sends the second wireless signal;

[0044] Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0045] In a third aspect of the embodiments of the present application, a network device is provided, and the network device includes: a receiving unit, a converting unit, and a sending unit;

[0046] The receiving unit is configured to receive a first wireless signal through a wireless module of the network device;

[0047] The converting unit is configured to convert the first wireless signal received by the receiving unit into a first electrical signal;

[0048] The receiving unit is further configured to receive the first electrical signal forwarded by the forwarding unit from the wireless module through a main control module of the network device;

[0049] The converting unit is further configured to convert the first electrical signal received by the receiving unit into a second electrical signal; and is configured to convert the second electrical signal into a first optical signal through an optical module of the network device;

[0050] The sending unit is configured to send the first optical signal converted by the converting unit to a first ONU, and the first ONU is one of multiple ONUs connected to the optical module of the network device.

[0051] Since the network device provided by the embodiments of the present application is connected to multiple ONU devices through an optical module of the network device, therefore, multiple ONU devices can transmit messages to devices such as a base station through one network device, without each ONU device being configured with a CPE, thereby reducing the number of network devices used, and while reducing the deployment cost, the overall network capacity and bandwidth utilization rate of FWA can also be improved.

[0052] Combined with the third aspect, in a possible implementation manner, the first electrical signal is an Ethernet frame, and the second electrical signal is a PON protocol message.

[0053] Combined with the third aspect and the above possible implementation manners, in another possible implementation manner, the network device further includes: a processing unit;

[0054] The processing unit is configured to, before the sending unit sends the first optical signal to the first ONU, determine the first ONU through the main controller of the main control module;

[0055] The sending unit is further configured to forward the first electrical signal to an optical line terminal OLT chip, and the first ONU is the ONU corresponding to the first electrical signal;

[0056] The conversion unit is further configured to convert the first electrical signal sent by the sending unit into the second electrical signal through the OLT chip of the main control module, and the second electrical signal includes port information corresponding to the first ONU.

[0057] Combined with the third aspect and the above possible implementation manners, in another possible implementation manner, the processing unit is further configured to, after the receiving unit receives a first wireless signal through the wireless module of the network device, through the main controller of the main control module, when determining that the first ONU is optically connected to the optical module, determine a first virtual interface corresponding to the first electrical signal from at least one virtual interface;

[0058] The sending unit is further configured to send the first electrical signal to a forwarding acceleration module of the network device through the first virtual interface determined by the processing unit;

[0059] The processing unit is further configured to perform forwarding acceleration processing on forwarding the first electrical signal through the forwarding acceleration module.

[0060] Combined with the third aspect and the above possible implementation manners, in another possible implementation manner, the processing unit is further configured to, before determining a first virtual interface corresponding to the first electrical signal from at least one virtual interface through the main controller of the main control module, when the network device determines that the first ONU is optically connected to the optical module, the network device creates the first virtual interface through the main controller.

[0061] Combined with the third aspect and the above possible implementation manners, in another possible implementation manner, the processing unit is further configured to, when the network device determines that the optical connection between the first ONU and the optical module is disconnected, the network device deletes the first virtual interface through the main controller.

[0062] Combined with the third aspect and the above possible implementation manners, in another possible implementation manner, the receiving unit is further configured to receive a second optical signal sent by the first ONU through an optical module of the network device;

[0063] The converting unit is further configured to convert the second optical signal received by the receiving unit into a third electrical signal;

[0064] The receiving unit is further configured to receive the third electrical signal from the optical module through a main control module of the network device;

[0065] The converting unit is further configured to convert the third electrical signal received by the receiving unit into a fourth electrical signal; and is further configured to convert the fourth electrical signal into a second wireless signal through a wireless module of the network device;

[0066] The sending unit is further configured to send the second wireless signal converted by the converting unit;

[0067] Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0068] The specific implementation manner may refer to the behavior functions of the network device in the forwarding method provided by the second aspect or the possible implementation manners of the second aspect.

[0069] In a fourth aspect of the embodiments of the present application, a network device is provided, including a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the forwarding method as described in the second aspect and its possible implementation manners of the second aspect are implemented.

[0070] In a fifth aspect of the embodiments of the present application, a readable storage medium is provided. The readable storage medium stores a program or instruction. When the program or instruction is executed by a processor, the steps of the forwarding method as described in the second aspect and its possible implementation manners of the second aspect are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0072] Figure 1 A schematic diagram of the architecture of a broadband access network for FWA provided by the related art;

[0073] Figure 2Block diagram of a wireless communication system provided by an embodiment of the present application;

[0074] Figure 3 One of the schematic structural diagrams of a network device provided by an embodiment of the present application;

[0075] Figure 4 Another schematic structural diagram of a network device provided by an embodiment of the present application;

[0076] Figure 5 Another schematic structural diagram of a network device provided by an embodiment of the present application;

[0077] Figure 6 Another schematic structural diagram of a network device provided by an embodiment of the present application;

[0078] Figure 7 One of the flowcharts of a forwarding method provided by an embodiment of the present application;

[0079] Figure 8 Schematic diagram of the architecture for a network device to forward packets through a virtual interface provided by an embodiment of the present application;

[0080] Figure 9 Another flowchart of a forwarding method provided by an embodiment of the present application;

[0081] Figure 10 Schematic diagram of the composition of a network device provided by an embodiment of the present application. Detailed implementation manners

[0082] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0083] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple.

[0084] In addition, the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0085] The terms "at least one (item)", "at least one of", etc. in the specification and claims of this application refer to any one, any two or more combinations of the objects they contain. For example, at least one (item) of a, b, and c can represent: "a", "b", "c", "a and b", "a and c", "b and c", and "a, b, and c", where a, b, and c can be single or multiple. Similarly, "at least two (items)" means two or more, and its meaning is similar to that of "at least one (item)".

[0086] The following explains some concepts and / or terms involved in a network device, a forwarding method, and a medium provided by the embodiments of this application.

[0087] 1. FWA refers to a solution that provides fixed broadband access through wireless technology. It can generally be divided into Tier 1 operators and small and medium-sized Wireless Internet Service Providers (WISPs). Among them, Tier 1 operators have cellular network resources. Therefore, after Tier 1 operators promote the 5th Generation Mobile Communication Technology (5G) network, the FWA solution through the 5G network has become popular quickly; while small and medium-sized WISP operators usually implement non-5G FWA applications through other wireless frequency bands and wireless technologies (such as microwave, etc.).

[0088] 2. Network devices are usually installed in users' residences or office places and are used to connect user devices to the network of service providers.

[0089] It should be noted that the network devices in the embodiments of this application can be wireless or 5G network devices and are deployed on the near-user side.

[0090] 3. The Outdoor Unit (ODU) is usually a device used in outdoor environments, such as antennas, transceivers, etc.

[0091] It should be noted that the ODU in the embodiments of this application can be a wireless or 5G ODU deployed outdoors.

[0092] 4. The indoor unit (abbreviated as IDU in English: Indoor Unit) is deployed indoors, contrary to the ODU, and usually also provides wireless fidelity (abbreviated as Wi-Fi in English: Wireless Fidelity) access function externally.

[0093] It should be noted that the IDU in the embodiments of the present application can be a wireless or 5G IDU indoors.

[0094] 5. PON transmits data through optical fibers without using a power supply or a signal amplifier. Multiple users can be covered at low cost through a splitter. The current mainstream is the Gigabit-Capable PON (abbreviated as GPON in English: Gigabit-Capable PON) technology. Among them, the use of 10G-PON and 10 Gigabit Symmetrical Passive Optical Network PON (abbreviated as XGS-PON in English: 10Gigabit Symmetrical PassiveOptical Network PON) is gradually increasing.

[0095] 6. The OLT is the core device in the PON system, responsible for communicating with the user-side device (optical network unit) and transmitting data into the optical fiber.

[0096] 7. The ONU is the user-side device in the PON system, responsible for receiving the optical signal sent by the OLT and converting it into an electrical signal to connect to the user terminal device.

[0097] Next, in combination with the accompanying drawings, through specific embodiments and their application scenarios, the network devices, forwarding methods, and media provided by the embodiments of the present application will be described in detail.

[0098] The network devices, forwarding methods, and media provided by the embodiments of the present application can be applied to the scenario of fixed broadband access, especially the scenario of broadband access through the FWA technology method.

[0099] Currently, Tier1 operators hope to improve the return-on-investment (abbreviated as ROI in English: Return-on-investment) of 5G construction through the FWA service, quickly capture the number of users of the home broadband service through the FWA service, and at the same time avoid the high initial cost / ROI problem in the fiber-to-the-home (abbreviated as FTTH in English: Fiber To The Home) fiber construction as much as possible, or avoid problems such as difficult fiber construction.

[0100] In the related art, as Figure 1 shown, usually, 1 CPE can be deployed for each user, so that the base station and the CPE of each user form an access network to access the FWA service.

[0101] However, for the broadband access mode with one CPE configured for each user, due to the high cost of 5G CPE chips / modules and the high price of the whole machine, it may impose a certain burden on the business development of operators. Moreover, there is a problem of insufficient investment in 5G base stations and insufficient 5G signal coverage in some areas. Therefore, while resulting in relatively high capital expenditures, it will also lead to problems such as a small overall network capacity and low bandwidth utilization rate of FWA. In addition, for the CPE using the IDU method, although the capex is relatively lower than that of the CPE using the ODU method, since the CPE device is indoors and the signal needs to pass through the wall, it will cause signal attenuation, thus affecting the performance, and further affecting the performance of the whole network. For the CPE using the ODU method, although the CPE device is outdoors and the signal does not need to pass through the wall, and its performance is better than that of the CPE using the IDU method, the cost of the CPE using the ODU method is higher, and the deployment and maintenance for each household are more troublesome, requiring more time and cost.

[0102] Furthermore, although small and medium-sized WISP operators have gradually started to use FTTH to replace the wireless last-mile solution of point-to-multiple-point master stations (abbreviation: P2MP) in order to provide more stable delivery in the last mile and adapt to more complex geographical environments, the deployment cost of this solution is still relatively high.

[0103] In the network device, forwarding method, and medium provided by the embodiments of the present application, since multiple ONU devices are connected through the optical module of the network device, multiple ONU devices can transmit messages to devices such as base stations through one network device, without each ONU device being configured with a network device, thus reducing the number of network devices used, and while reducing the deployment cost, it can also improve the overall network capacity and bandwidth utilization rate of FWA.

[0104] Figure 2A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a device 21, an ONU 22, a network device 23, and an Optical Distribution Network (ODN) 24. Among them, the device 21 and the ONU 22 can complete the transmission of data packets through the network device 23 and the ODN 24. The device 21 may include an access network device or a core network device. Among them, the access network device may also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc. Among them, the base station may be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0105] Figure 3Schematic diagram of the structure of a network device provided by an embodiment of the present application. The network device may include: a wireless module 31, which may be used to receive a first wireless signal and convert the first wireless signal into a first electrical signal; a main control module 32, one end of which is electrically connected to the wireless module 31, and the main control module 32 is used to receive the first electrical signal from the wireless module 31 and convert the first electrical signal into a second electrical signal; an optical module 33, one end of which is electrically connected to the other end of the main control module 32, and the other end of the optical module 33 is optically connected to a plurality of optical network units ONU. The optical module 33 may be used to convert the second electrical signal into a first optical signal and send the first optical signal to the first ONU, and the first ONU is one of the plurality of ONUs.

[0106] Wherein, the above-mentioned first electrical signal may be an Ethernet frame, and the above-mentioned second electrical signal may be a PON protocol message.

[0107] In some embodiments of the present application, the optical module 33 may also be used to receive a second optical signal sent by the first ONU and convert the second optical signal into a third electrical signal; the above-mentioned main control module 32 may also be used to receive the third electrical signal from the optical module and convert the third electrical signal into a fourth electrical signal; the above-mentioned wireless module 31 may also be used to convert the fourth electrical signal into a second wireless signal and send the second wireless signal.

[0108] Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0109] In some embodiments of the present application, as Figure 4 shown, the above-mentioned wireless module 31 may include an antenna 41 and a wireless chip 42.

[0110] In some embodiments of the present application, the above-mentioned antenna 41 may be used to receive a wireless signal; or send a wireless signal.

[0111] It can be understood that the above-mentioned antenna 41 may be a passive device.

[0112] In some embodiments of the present application, the above-mentioned wireless chip 42 may be used to convert the wireless signal received by the antenna into an Ethernet frame for the main control module 32; or receive the Ethernet frame sent by the main control module 32 and convert it into a wireless signal for transmission through the antenna. That is to say, the above-mentioned wireless chip 42 may be used for the conversion between wireless signals and electrical signals (i.e., Ethernet frames), and manage and control the encapsulation and decapsulation of Ethernet frames.

[0113] In some embodiments of the present application, as Figure 4 shown, the above-mentioned optical module 33 may include an optical drive chip 43 and an optical transceiver device 44.

[0114] In some embodiments of the present application, the optical transceiver device 44 can be used to receive the optical signal sent by the ONU in the PON downstream network; or send an optical signal to the ONU in the PON downstream network.

[0115] In some embodiments of the present application, the above-mentioned optical drive chip 43 can be used to receive the PON protocol message sent by the main control module 32, convert it into an optical signal and send it to the ONU in the PON downstream network through the optical transceiver device 44; or receive the optical signal sent by the ONU in the PON downstream network through the optical transceiver device 44, and convert it into a PON protocol message and send it to the main control module 32. That is to say, the optical drive chip 43 can be used for the conversion between electrical signals (i.e., PON protocol messages) and optical signals, and manage and control the encapsulation and decapsulation of PON protocol messages.

[0116] In some embodiments of the present application, the optical module 33 can be designed to be pluggable or integrated on the board to further reduce the deployment cost and volume of the network device.

[0117] In the network device provided by the embodiments of the present application, since multiple ONU devices are connected through the optical module of the network device, therefore, multiple ONU devices can transmit messages to devices such as base stations through one network device, without each ONU device being configured with a CPE, thereby reducing the number of network devices used, and while reducing the deployment cost, the overall network capacity and bandwidth utilization rate of FWA can also be improved.

[0118] In some embodiments of the present application, in combination with Figure 4 , as Figure 5 shown, the above-mentioned main control module 32 may include: a main controller 51, one end of the main controller 51 is electrically connected to the wireless module, and the main controller 51 is used to determine the first ONU and forward the first electrical signal to the optical line terminal OLT chip 52, and the first ONU is the ONU corresponding to the first electrical signal; an OLT chip 52, one end of the OLT chip 52 is electrically connected to the other end of the main controller 51, the other end of the OLT chip 52 is electrically connected to the optical module, and the OLT chip 52 is used to convert the first electrical signal into a second electrical signal, and the second electrical signal includes the port information corresponding to the first ONU.

[0119] In some embodiments of the present application, the above-mentioned main controller 51 may determine a first ONU corresponding to the first electrical signal according to the information of the destination ONU carried in the first electrical signal. Then, during the process of converting the first electrical signal, the OLT chip may add the port information corresponding to the first ONU to obtain a second electrical signal including the port information corresponding to the first ONU. Thus, when the optical module converts the second electrical signal into a first optical signal and sends the first optical signal to all ONUs optically connected to the optical module, the first ONU may compare the port information allocated to the first ONU with the port information in the signal, and determine whether the first optical signal is a signal sent to the first ONU when the port information allocated to the first ONU matches the port information in the signal.

[0120] In some embodiments of the present application, the above-mentioned OLT chip 52 may also be used to convert a third electrical signal into a fourth electrical signal; the above-mentioned main controller 51 may also be used to determine the first ONU and forward the fourth electrical signal to the wireless module.

[0121] In some embodiments of the present application, the above-mentioned OLT chip 522 may perform different encapsulations and decapsulations on electrical signals to complete the conversion between Ethernet frames and PON protocol packets, thereby realizing the docking support between network devices and ONUs.

[0122] In some embodiments of the present application, the above-mentioned main controller 51 may be the center for forwarding and controlling of the network device. It may be used to control the packet forwarding between wireless and wired, the interaction between various modules inside the network device, and the interaction between the network device and users, etc.

[0123] Exemplarily, during the process of the OLT chip 52 converting packets, the OLT chip 52 may interact with the main controller for management packets, such as the ONU Management and Control Interface (OMCI).

[0124] It can be understood that in traditional OLT devices, due to the large capacity and high performance of conventional OLT chips, a relatively large-scale OLT chip implementation method is adopted, so a dedicated SWITCH chip is required to carry the forwarding service. Thus, the traditional OLT device is relatively complex and its cost is also relatively high.

[0125] It should be noted that the switch chip can generally be used to forward data packets between the Ethernet port and the OLT chip according to the configuration table entries issued by the main controller.

[0126] In some embodiments of the present application, since the switching chip forwards signals between the Ethernet port and the OLT chip, that is, forwards signals between the wired sides, and cannot forward signals between the wireless side and the wired side. Therefore, the Ethernet frames transmitted by the wireless module 31 cannot be directly forwarded by the switching chip. Based on this, the switching chip can be trimmed so that the Ethernet frames transmitted by the wireless module 31 can be software-forwarded by the main controller 51, and at the same time, the deployment cost can be reduced and the device scale can be reduced.

[0127] Furthermore, the OLT chip 52 can also be trimmed and integrated into the main controller 51 to further reduce the volume, power consumption, and cost of the network device.

[0128] It can be understood that compared with the implementation of traditional OLT chips, the OLT chip in the network device provided by the embodiments of the present application can adopt a streamlined implementation method, and without the need for large capacity and high performance, it can meet the scenario requirements while taking into account the deployment cost.

[0129] In some embodiments of the present application, in combination Figure 5 , such as Figure 6 shown, the above-mentioned main controller 51 may further include: a forwarding acceleration module 61, one end of the forwarding acceleration module 61 is electrically connected to the wireless module, the other end of the forwarding acceleration module 61 is electrically connected to the OLT chip, and the forwarding acceleration module 61 is used to determine the first ONU and perform forwarding acceleration processing on the first electrical signal.

[0130] In some embodiments of the present application, the above-mentioned forwarding acceleration module 61 may also be used to determine the first ONU and perform forwarding acceleration processing on the fourth electrical signal.

[0131] It should be noted that for a detailed description of the main controller 51 performing forwarding acceleration on the electrical signals transmitted by the wireless module 31, reference may be made to the relevant descriptions in the embodiments of the following forwarding method. To avoid repetition, it will not be elaborated here.

[0132] In some embodiments of the present application, the network device may power on and initialize the OLT chip and the main controller in the wireless module and the main control module respectively.

[0133] In some embodiments of the present application, the network device can complete the connection of the uplink wireless link through the following steps a to d.

[0134] Step a: The network device powers on and completes the loading of the configuration (English: profile).

[0135] Step b: The network device performs Public Land Mobile Network (PLMN) selection, frequency scanning, random access, cell selection, and completes cell residence.

[0136] Step c: The network device completes registration in the core network through signaling of devices such as base stations.

[0137] Step d: The network device establishes a dial-up connection.

[0138] In some embodiments of the present application, the network device can complete the connection of the downstream PON link in accordance with the standard PON protocol through the following steps e to k.

[0139] Step e: The network device cyclically sends various overheads in the network and the common upstream time slot points specifically used for ONU access authentication to the ONU through the OLT chip to the PON port.

[0140] Step f: After the ONU accesses the PON port and receives the header overhead and various preset values, it uses the upstream time slot points and switches its state from the initialization state O1 to the state O2.

[0141] Step g: The ONU sends information such as the serial number to the OLT chip in the network device and switches its state from the state O2 to the state O3.

[0142] Step h: After the network device receives the serial number sent by the ONU through the OLT chip, it requests the ONU to measure the distance between the ONU and the network device.

[0143] Step i: After the ONU receives the ranging request from the network device, it switches its state from the state O3 to the state O4.

[0144] Step j: After the ranging is completed, the ONU switches its state from the state O4 to the state O5.

[0145] Step k: The network device sends the configuration related to the service model to the ONU based on OMCI through the OLT chip. After the configuration is sent, the data channel of the ONU is established.

[0146] In this way, through the power-on initialization of the network device and the connection of the upstream link and the downstream link, the network module can start running smoothly to transmit signals.

[0147] Figure 7 It is a flowchart of a forwarding method provided in an embodiment of the present application, which is applied to the network device provided in the embodiment of the present application. As Figure 7 shown, the forwarding method may include the following steps 201 to 203.

[0148] Step 201: The network device receives a first wireless signal through the wireless module of the network device and converts the first wireless signal into a first electrical signal.

[0149] Step 202: The network device receives the first electrical signal from the wireless module through the main control module of the network device and converts the first electrical signal into a second electrical signal.

[0150] Step 203: The network device converts the second electrical signal into a first optical signal through the optical module of the network device and sends the first optical signal to the first ONU.

[0151] Wherein, the first ONU is one of multiple ONUs connected to the optical module of the network device.

[0152] In some embodiments of the present application, the above first electrical signal may be an Ethernet frame, and the above second electrical signal may be a PON protocol message.

[0153] In some embodiments of the present application, when the network device transmits data to the first ONU, as Figure 3 shown, the network device may receive the first wireless signal through the wireless module 31 and convert the first wireless signal into an Ethernet frame; then, the network device may convert the Ethernet frame into a PON protocol message through the main control module 32; finally, the network device may control the optical module 33 to convert the PON protocol message into a first optical signal according to the first address of the first PON protocol message and send the first optical signal to the first ONU through the main control module 32.

[0154] In some embodiments of the present application, the forwarding method provided by the embodiments of the present application may further include the following steps 204 to 206.

[0155] Step 204: The network device receives a second optical signal sent by the first ONU through the optical module of the network device and converts the second optical signal into a third electrical signal.

[0156] Step 205: The network device receives the third electrical signal from the optical module through the main control module of the network device and converts the third electrical signal into a fourth electrical signal.

[0157] Step 206: The network device converts the fourth electrical signal into a second wireless signal through the wireless module of the network device and sends the second wireless signal.

[0158] Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0159] In some embodiments of the present application, for the detailed descriptions of the above steps 201 to 203 and steps 204 to 206, reference may be made to the aboveFigure 3 The relevant description is not repeated here to avoid redundancy.

[0160] In the forwarding method provided by the embodiments of the present application, since multiple ONU devices are connected through the optical module of the network device, multiple ONU devices can transmit packets to the network-side device through one network device, without the need to configure a CPE for each ONU device, thereby reducing the number of network devices used, reducing the deployment cost, and improving the overall network capacity and bandwidth utilization rate of FWA at the same time.

[0161] In some embodiments of the present application, before "sending the first optical signal to the first ONU" in step 203 above, the forwarding method provided by the embodiments of the present application may further include the following steps 207 and 208.

[0162] Step 207: The network device determines the first ONU through the main controller of the main control module and forwards the first electrical signal to the optical line terminal OLT chip.

[0163] Wherein, the first ONU is the ONU corresponding to the first electrical signal.

[0164] Step 208: The network device converts the first electrical signal into a second electrical signal through the OLT chip of the main control module.

[0165] Wherein, the second electrical signal includes the port information corresponding to the first ONU.

[0166] In some embodiments of the present application, the OLT chip may include multiple PON interfaces, and each PON interface can be connected to an ONU through an optical module. In this way, the ONU can determine whether to receive or discard the optical signal based on the port information in the received optical signal.

[0167] It can be understood that the ONU can receive the optical signal when the port information in the received optical signal matches the port information allocated to the ONU.

[0168] In some embodiments of the present application, the first ONU can perform port mapping through the port information carried in the received optical signal, so that after converting the first optical signal into an electrical signal, it is sent to the user terminal device mapped to the port.

[0169] In this way, since the network device can determine the first ONU through the main controller of the main control module and convert the first electrical signal into a second electrical signal including the port information corresponding to the first ONU through the OLT chip of the main control module, the network device can accurately forward the signal to a specific ONU, improving the signal forwarding efficiency.

[0170] In some embodiments of the present application, after the above step 201, the forwarding method provided by the embodiments of the present application may further include the following steps 209 to 211.

[0171] Step 209: When the network device determines that the first ONU is optically connected to the optical module through the main controller of the main control module, determine a first virtual interface corresponding to the first electrical signal from at least one virtual interface.

[0172] Step 210: The network device sends the first electrical signal to the forwarding acceleration module of the network device through the first virtual interface.

[0173] Step 211: The network device performs forwarding acceleration processing on the forwarded first electrical signal through the forwarding acceleration module.

[0174] In some embodiments of the present application, the network device may establish a corresponding entry table of the ONU and the virtual interface in the main controller, so that the network device can perform forwarding acceleration processing on the electrical signal to be sent through the virtual interface corresponding to the ONU.

[0175] In some embodiments of the present application, the network device may establish a flow table including a five-tuple of the source Internet Protocol (IP) address, source port, destination IP address, destination port, and transport layer protocol through the forwarding acceleration module in the main controller of the main control module, so that the forwarding acceleration module can establish an acceleration flow table by learning the forwarding logic in the flow table, thereby realizing the forwarding acceleration of the signal.

[0176] In some embodiments of the present application, when the network device determines that the ONU is optically connected to the optical module, it can determine a first virtual interface corresponding to the first electrical signal from at least one virtual interface through the main controller of the main control module, and send the first wireless signal to the forwarding acceleration module of the network device through the first virtual interface, so that the forwarding acceleration module performs forwarding acceleration processing on the forwarded first wireless signal.

[0177] In some embodiments of the present application, since there is no switching chip in the network device responsible for packet forwarding, and compared with traditional wireless network devices, the network device provided by the embodiments of the present application needs to bear the access of more downstream devices (i.e., ONUs) and user terminals and application traffic. Therefore, the main controller of the network device not only needs to be responsible for packet forwarding, but also needs to optimize the forwarding process to ensure the capacity and performance of the entire network.

[0178] In some embodiments of the present application, the network device can complete the optimization of the forwarding process by using the forwarding acceleration module in the main controller to ensure the capacity and performance of the entire network.

[0179] It is understandable that the message forwarding of the network device is usually processed by the central processing unit (CPU) core. Figure 8 As shown, the message forwarding from the wireless side to the wired side is completed through path 1 and path 2. However, since the performance of software forwarding is limited by the processing power of the CPU core, it may cause insufficient performance, resulting in abnormal message forwarding. In the forwarding method provided in the embodiment of the present application, since the number of downstream ONUs is large, which may reach 10 to 30, the performance requirements of the entire networking are high. Therefore, path 3 and path 4 can be used to realize message forwarding through a forwarding acceleration module.

[0180] It should be noted that the forwarding acceleration module in traditional network equipment is usually designed for applications from Ethernet port to Ethernet port, or from wireless interface to Ethernet port. Figure 8 As shown in the external interface 1 and the external interface 2, each external interface can be connected to an external physical device, so the forwarding acceleration between the external interface 1 and the external interface 2 is the forwarding acceleration between two real physical interfaces.

[0181] In the forwarding method provided in the embodiment of the present application, since an OLT chip can usually be split into multiple PON ports, which are then connected to multiple ONUs through an optical splitter, the forwarding acceleration module cannot sense the existence of these ONU devices through the real physical interface, resulting in the inability to achieve forwarding acceleration.

[0182] In some embodiments of the present application, in order to enable the forwarding acceleration module to normally accelerate the forwarding of messages, a virtual device interface can be generated in the main controller for each ONU accessing the network device through software, so that the forwarding acceleration module can perform forwarding acceleration like processing a traditional Ethernet interface.

[0183] It should be noted that other forwarding control functions of the ONU, such as Quality of Service (QoS) scheduling and bridge forwarding strategy between the ONU and network devices, can be controlled based on the virtual interface corresponding to the ONU.

[0184] In this way, since the forwarding acceleration processing of the electrical signal can be achieved through the virtual interface corresponding to the electrical signal, the message forwarding failure caused by the forwarding acceleration module in the main controller not being able to perceive the existence of the ONU can be avoided, thereby improving the message processing efficiency.

[0185] In some embodiments of the present application, before the above step 209, the forwarding method provided by the embodiment of the present application may further include the following step 212.

[0186] Step 212: When the network device determines that the first ONU is optically connected to the optical module, the network device creates a first virtual interface through the main controller.

[0187] In some embodiments of the present application, the network device may determine that the first ONU is optically connected to the optical module when the data channel between the OLT chip and the first ONU is established. Thus, the network device may create a first virtual interface corresponding to the first ONU through the main controller and store the corresponding relationship between the first ONU and the first virtual interface, so that the network device can perform forwarding acceleration processing on the packets transmitted to the first ONU through the first virtual interface.

[0188] In this way, since the network device can actively create a virtual interface when the ONU is optically connected to the optical module, during the packet forwarding process, the forwarding acceleration module in the main controller will not perceive the existence of the ONU, resulting in packet forwarding failure, improving the packet processing efficiency.

[0189] In some embodiments of the present application, the forwarding method provided by the embodiments of the present application may further include the following step 213.

[0190] Step 213: When the network device determines that the optical connection between the first ONU and the optical module is disconnected, the network device deletes the first virtual interface through the main controller.

[0191] In some embodiments of the present application, the network device may determine that the optical connection between the first ONU and the optical module is disconnected when the data channel between the OLT chip and the first ONU is disconnected, and thus delete the first virtual interface through the main controller.

[0192] In this way, since the network device can automatically delete the virtual interface when the optical connection between the ONU and the optical module is disconnected, the resource occupancy in the network device can be saved.

[0193] Figure 9 This is an interaction flowchart of a forwarding method provided by an embodiment of the present application. As Figure 9 shown, taking the signal transmission between the base station and the first ONU through the network device as an example, the forwarding method may include the following steps 301 to 305.

[0194] Step 301: The base station sends a first wireless signal to the network device.

[0195] Step 302: The network device receives the first wireless signal sent by the base station through the wireless module of the network device and converts the first wireless signal into an Ethernet frame.

[0196] Step 303: The network device converts the Ethernet frame into a PON protocol message through the master control module of the network device.

[0197] Step 304: The network device converts the PON protocol message into a first optical signal through the optical module of the network device and sends the first optical signal to the first ONU.

[0198] The first ONU is one of the multiple ONUs connected to the optical module of the network device.

[0199] Step 305: The first ONU receives the first optical signal.

[0200] In this way, since multiple ONU devices are connected through the optical module of the network device, multiple ONU devices can transmit messages to devices such as base stations through one network device, without each ONU device being configured with a CPE. This reduces the number of network devices used, thereby reducing the deployment cost while improving the overall network capacity and bandwidth utilization rate of FWA.

[0201] The above mainly introduces the solution provided by the embodiments of the present application from the perspective of the interaction among the network device, the base station, and the first ONU. It can be understood that in order to implement the above functions, the network device, the base station, and the first ONU include the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0202] The embodiments of the present application can divide the functional modules of the network device according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0203] In the case of dividing each functional module corresponding to each function, Figure 10 shows a possible schematic composition diagram of the network device involved in the above embodiments. As Figure 10 shown, the network device 100 may include: a receiving unit 101, a conversion unit 102, and a sending unit 103.

[0204] Among them, a receiving unit 101 is used for a wireless module of a network device to receive a first wireless signal;

[0205] A conversion unit 102 is used to convert the first wireless signal received by the receiving unit 101 into a first electrical signal;

[0206] The receiving unit 101 is further used to receive, through a main control module of the network device, the first electrical signal forwarded by a forwarding unit from the wireless module;

[0207] The conversion unit 102 is further used to convert the first electrical signal received by the receiving unit 101 into a second electrical signal; and is used to convert the second electrical signal into a first optical signal through an optical module of the network device;

[0208] A sending unit 103 is used to send the first optical signal converted by the conversion unit 102 to a first ONU, where the first ONU is one of multiple ONUs connected to the optical module of the network device.

[0209] In an embodiment of the present application, the first electrical signal is an Ethernet frame, and the second electrical signal is a PON protocol message.

[0210] In an embodiment of the present application, the network device further includes: a processing unit;

[0211] The processing unit is used to determine the first ONU through a main controller of the main control module before the sending unit 103 sends the first optical signal to the first ONU;

[0212] The sending unit 103 is further used to forward the first electrical signal to an optical line terminal OLT chip, where the first ONU is the ONU corresponding to the first electrical signal;

[0213] The conversion unit 102 is further used to convert the first electrical signal sent by the sending unit 103 into a second electrical signal through an OLT chip of the main control module, and the second electrical signal includes port information corresponding to the first ONU.

[0214] In an embodiment of the present application, the processing unit is further used to, after the receiving unit 101 receives the first wireless signal through the wireless module of the network device, determine, through the main controller of the main control module, a first virtual interface corresponding to the first electrical signal from at least one virtual interface when it is determined that the first ONU is optically connected to the optical module;

[0215] The sending unit 103 is further used to send the first electrical signal to a forwarding acceleration module of the network device through the first virtual interface determined by the processing unit;

[0216] The processing unit is further used to perform forwarding acceleration processing on the forwarded first electrical signal through the forwarding acceleration module.

[0217] In the embodiment of the present application, before the processing unit further determines, through the main controller of the main control module, a first virtual interface corresponding to the first electrical signal from at least one virtual interface, when the network device determines that the first ONU is optically connected to the optical module, the network device creates a first virtual interface through the main controller.

[0218] In the embodiment of the present application, when the network device determines that the optical connection between the first ONU and the optical module is disconnected, the network device deletes the first virtual interface through the main controller.

[0219] In the embodiment of the present application, the receiving unit 101 is further configured to receive, through the optical module of the network device, a second optical signal sent by the first ONU;

[0220] The conversion unit 102 is further configured to convert the second optical signal received by the receiving unit 101 into a third electrical signal;

[0221] The receiving unit 101 is further configured to receive, through the main control module of the network device, the third electrical signal from the optical module;

[0222] The conversion unit 102 is further configured to convert the third electrical signal received by the receiving unit 101 into a fourth electrical signal; and is further configured to convert the fourth electrical signal into a second wireless signal through the wireless module of the network device;

[0223] The sending unit 103 is further configured to send the second wireless signal converted by the conversion unit 102;

[0224] Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

[0225] It should be noted that all relevant contents of the steps involved in the above method embodiments can be cited in the function descriptions of the corresponding function modules, and will not be elaborated here.

[0226] It should be noted that the specific working processes of the functional modules in the network device provided in the embodiment of the present application can refer to the specific descriptions of the corresponding processes in the method embodiments, and will not be elaborated in detail here. The network device provided in the embodiment of the present application is used to execute the above forwarding method, so the same effects as the above forwarding method can be achieved.

[0227] Through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0228] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0229] The units described as separate components may or may not be physically separated. The components displayed as units can be one physical unit or multiple physical units, that is, they can be located in one place, or they can be distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0230] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0231] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions for causing a device (which can be a single-chip microcomputer, a chip, etc.) or a processor (English: processor) to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (English: Read-Only Memory, abbreviated as ROM), random access memories (English: Random Access Memory, abbreviated as RAM), magnetic disks or optical discs that can store program codes.

[0232] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A network device, characterized in that, The network device includes: A wireless module, which is configured to receive a first wireless signal and convert the first wireless signal into a first electrical signal; A main control module, one end of which is electrically connected to the wireless module. The main control module is configured to receive the first electrical signal from the wireless module and convert the first electrical signal into a second electrical signal; An optical module, one end of which is electrically connected to the other end of the main control module, and the other end of the optical module is optically connected to a plurality of optical network units (ONUs). The optical module is configured to convert the second electrical signal into a first optical signal and send the first optical signal to a first ONU, where the first ONU is one of the plurality of ONUs.

2. The network device according to claim 1, wherein the first electrical signal is an Ethernet frame and the second electrical signal is a Passive Optical Network (PON) protocol message.

3. The network device according to claim 1 or 2, characterized in that, The main control module includes: A main controller, one end of which is electrically connected to the wireless module. The main controller is configured to determine the first ONU and forward the first electrical signal to an optical line terminal (OLT) chip, where the first ONU is the ONU corresponding to the first electrical signal; The OLT chip, one end of which is electrically connected to the other end of the main controller, and the other end of the OLT chip is electrically connected to the optical module. The OLT chip is configured to convert the first electrical signal into the second electrical signal, and the second electrical signal includes port information corresponding to the first ONU.

4. The network device according to claim 3, characterized in that, The main controller includes: A forwarding acceleration module, one end of which is electrically connected to the wireless module, and the other end of the forwarding acceleration module is electrically connected to the OLT chip. The forwarding acceleration module is configured to determine the first ONU and perform a forwarding acceleration process on the first electrical signal.

5. The network device according to claim 1, characterized in that, The optical module is further configured to receive a second optical signal sent by the first ONU and convert the second optical signal into a third electrical signal; The main control module is further configured to receive the third electrical signal from the optical module and convert the third electrical signal into a fourth electrical signal; The wireless module is further configured to convert the fourth electrical signal into a second wireless signal and send the second wireless signal; Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

6. The network device according to claim 5, characterized in that, The main control module includes: The OLT chip, one end of which is electrically connected to the optical module. The OLT chip is configured to convert the third electrical signal into the fourth electrical signal; The main controller, one end of which is electrically connected to the other end of the OLT chip, and the other end of the main controller is connected to the wireless module. The main controller is configured to determine the first ONU and forward the fourth electrical signal to the wireless module.

7. The network device according to claim 6, characterized in that, The main controller includes: A forwarding acceleration module, one end of which is electrically connected to the wireless module, and the other end of the forwarding acceleration module is electrically connected to the OLT chip. The forwarding acceleration module is configured to determine the first ONU and perform a forwarding acceleration process on the fourth electrical signal.

8. A forwarding method, characterized in that, Applied to the network device according to any one of claims 1 to 7, the method includes: The network device receives a first wireless signal through the wireless module of the network device and converts the first wireless signal into a first electrical signal; The network device receives the first electrical signal from the wireless module through the main control module of the network device and converts the first electrical signal into a second electrical signal; The network device converts the second electrical signal into a first optical signal through the optical module of the network device and sends the first optical signal to a first ONU, where the first ONU is one of multiple ONUs connected to the optical module of the network device.

9. The method according to claim 8, characterized in that, The first electrical signal is an Ethernet frame, and the second electrical signal is a PON protocol message.

10. The method according to claim 8, characterized in that, Before sending the first optical signal to the first ONU, the method further includes: The network device determines the first ONU through the main controller of the main control module and forwards the first electrical signal to an optical line terminal OLT chip, where the first ONU is the ONU corresponding to the first electrical signal; The network device converts the first electrical signal into the second electrical signal through the OLT chip of the main control module, and the second electrical signal includes port information corresponding to the first ONU.

11. The method according to any one of claims 8 to 10, characterized in that, After the network device receives the first wireless signal through the wireless module of the network device, the method further includes: When the network device determines that the first ONU is optically connected to the optical module, the network device determines a first virtual interface corresponding to the first electrical signal from at least one virtual interface through the main controller of the main control module; The network device sends the first electrical signal to the forwarding acceleration module of the network device through the first virtual interface; The network device performs forwarding acceleration processing on forwarding the first electrical signal through the forwarding acceleration module.

12. According to the method described in claim 11, wherein, Before the network device determines the first virtual interface corresponding to the first electrical signal from at least one virtual interface through the main controller of the main control module, the method further includes: When the network device determines that the first ONU is optically connected to the optical module, the network device creates the first virtual interface through the main controller.

13. According to the method described in claim 11, wherein, The method further includes: When the network device determines that the optical connection between the first ONU and the optical module is disconnected, the network device deletes the first virtual interface through the main controller.

14. According to the method described in claim 8, wherein, The method further includes: The network device receives a second optical signal sent by the first ONU through the optical module of the network device and converts the second optical signal into a third electrical signal; The network device receives the third electrical signal from the optical module through the main control module of the network device and converts the third electrical signal into a fourth electrical signal; The network device converts the fourth electrical signal into a second wireless signal through the wireless module of the network device and sends the second wireless signal; Wherein, the third electrical signal is a PON protocol message, and the fourth electrical signal is an Ethernet frame.

15. A readable storage medium, wherein, The program or instructions are stored on the readable storage medium, and when the program or instructions are executed by the processor, the forwarding method steps described in any one of claims 8 to 14 are implemented.

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