CN113132825A

CN113132825A - Communication method, optical network terminal, optical line terminal and system

Info

Publication number: CN113132825A
Application number: CN201911423084.9A
Authority: CN
Inventors: 卢庆聪; 宋碧薇; 江俊彦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16
Anticipated expiration: 2039-12-31
Also published as: CN113132825B

Abstract

The embodiment of the application provides a communication method, a device and a system, wherein the method comprises the following steps: the first ONT with the wireless network function collects wireless network information of a second ONT with the wireless network function at the periphery, and the first ONT sends the identity of the first ONT, the wireless network information of the first ONT and the collected wireless network information of the second ONT at the periphery to the OLT, and the OLT can store the corresponding relation between the first ONT and the second ONT, and further the OLT can analyze the fault reason of the ONT in the network operation process based on the corresponding relation.

Description

Communication method, optical network terminal, optical line terminal and system

Technical Field

The present application relates to the field of passive optical networks, and in particular, to a communication method, an optical network terminal, an optical line terminal, and a system.

Background

In a Passive Optical Network (PON) system, at least three kinds of devices are included: an Optical Line Termination (OLT), an Optical Distribution Network (ODN), and an optical network device (ONT). One or more splitters (splitter) may be included in the ODN, which may in turn split into one or more stages of light splitting. Typically, the OLT broadcasts optical signals to the ONTs via the ODN, and the ONTs send the optical signals to the OLT via the ODN. These optical signals are usually traffic data or data transmitted in a PON network. On the other hand, since wireless network devices are becoming more and more popular at present, it is a trend to integrate wireless network functions into ONTs, so that ONTs are not only used as transmission devices of PONs, but also as access points of wireless networks.

Disclosure of Invention

The embodiment of the invention provides a communication method, an optical network terminal and an optical line terminal, which are used for solving the problem that an OLT cannot acquire wireless network information of an ONT.

In a first aspect, an embodiment of the present application provides a communication method, where the method is applied to an OLT, and the method includes: the OLT receives a first message reported by a first ONT, wherein the first message comprises an ONT identifier of the first ONT and wireless network information of a second ONT, the first ONT and the second ONT both have wireless network functions, the first ONT and the second ONT can both realize optical communication with the OLT, and the wireless network information of the second ONT can be obtained by the first ONT through scanning; the scanning mode may include: the second ONT broadcasts a beacon frame to the first ONT in a broadcast manner, where the beacon frame may include wireless network information of the second ONT, or the first ONT acquires the wireless network information of the second ONT in an active scanning manner. The OLT further establishes and stores a corresponding relation between the first ONT and the second ONT. Generally, the number of the second ONTs may be 1, or may be multiple, as long as the ONTs can acquire the wireless network information of the surrounding ONTs through the scanning manner, all the information may be considered as the second ONTs. Because the first ONT reports the wireless network information of the second ONT which can be scanned by the periphery of the first ONT to the OLT, the OLT can acquire the wireless network information of a plurality of ONTs connected with the OLT.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first message may further include wireless network information of the first ONT. Because the first ONT sends the wireless network information of itself and the ONT identifier to the OLT, the OLT can establish a correspondence between the ONT identifier and the wireless network information of the ONT, so that the ONT identifier can be known through the wireless network information of the ONT, or the wireless network information of the ONT can be obtained through the ONT identifier.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the method further includes: and receiving a second message reported by a second ONT, the ONT identifier of the second ONT and the wireless network information of the second ONT. Further, the second message may also contain wireless network information of other ONTs that the second ONT can scan, such as: wireless network information of the first ONT. The OLT may receive the second message reported by the multiple ONTs, and further store a correspondence between the second ONT and the first ONT.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the correspondence between the first ONT and the second ONT is specifically one or more of the following: the ONT identification of the first ONT and the ONT identification of the second ONT are in corresponding relation; or the corresponding relation between the ONT identification of the first ONT and the wireless network information of the second ONT; or the corresponding relationship between the ONT wireless network information of the first ONT and the ONT identifier of the second ONT; or the corresponding relation between the ONT wireless network information of the first ONT and the wireless network information of the second ONT; or the corresponding relationship among the ONT identifier of the first ONT, the wireless network information of the first ONT and the ONT identifier of the second ONT; or the corresponding relation among the ONT identifier of the first ONT, the wireless network information of the first ONT and the wireless network information of the second ONT; or the corresponding relationship among the ONT identifier of the first ONT, the ONT identifier of the second ONT and the wireless network information of the second ONT; or the wireless network information of the first ONT, the ONT identifier of the second ONT and the wireless network information of the second ONT are in corresponding relation; or the four corresponding relations among the ONT identifier of the first ONT, the wireless network information of the second ONT and the ONT identifier of the second ONT. Of course, the OLT may also separately store the correspondence between the ONT identifier of the ONT and the wireless network information of the ONT.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes: when the OLT determines that the first ONT is an object to be detected, sending a query request to the second ONT according to the corresponding relation between the first ONT and the second ONT; receiving a query response sent by the second ONT, wherein the query response comprises wireless network information of one or more ONTs scanned by the second ONT. When a certain ONT is determined as an object to be detected, the OLT may actively consult whether wireless network information still exists in the object to be detected by its surrounding ONTs.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes: and if the wireless network information of one or more ONTs scanned by the second ONT comprises the wireless network information of the first ONT, determining that the fault of the first ONT is a non-power-down fault. Or if the wireless network information of one or more ONTs scanned by the second ONT does not include the wireless network information of the first ONT, determining that the fault of the first ONT is a power failure fault. The OLT may determine the fault type of the second ONT by determining whether the query response sent by the first ONT includes the wireless network information of the second ONT, and if the second ONT is powered down, the first ONT cannot obtain the wireless network information of the second ONT, so that the query response reported by the first ONT will not include the wireless network information of the second ONT, and thus, it may further determine that the fault of the second ONT is a power down fault. If the second ONT is not powered down, the wireless network function of the second ONT should still be working healthily, and the first ONT can still obtain the wireless network information of the second ONT, so that the query response reported by the first ONT will contain the wireless network information of the second ONT, and thus, the fault of the second ONT can be further judged to be a non-power-down fault. Therefore, the OLT can judge the fault category or fault reason of the ONT to be detected by judging whether the query response reported by the ONT contains the wireless network information of the ONT to be detected,

with reference to the first aspect, in a sixth possible implementation manner of the first aspect, the determining that the first ONT is the object to be detected specifically includes: and within a preset time, the optical signal sent by the first ONT cannot be received.

With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the first message may further include fault information of the second ONT, where the method further includes: the OLT determines an ONT identifier of a second ONT according to wireless network information of the second ONT; and determining the fault category of the second ONT according to the ONT identification of the second ONT and the fault information of the second ONT. Further, the fault information includes fault details and/or fault categories. The OLT may not need to send a query request to the first ONT, but simply wait for the first message reported by the first ONT, and directly determine the fault category of the second ONT according to whether the first message contains the fault information of the second ONT or not, if the first message contains the fault information of the second ONT; if the first message does not contain the failure information of the second ONT, it is determined that the failure of the second ONT may be a non-power down failure.

A second method, which is applied to an ONT having a wireless network function, in an embodiment of the present invention, a first ONT reports a first message to an OLT, where the first message includes an ONT identifier of the first ONT and wireless network information of a second ONT, the first ONT has the wireless network function and the second ONT has the wireless network function, and the wireless network information of the second ONT is obtained by the first ONT through scanning. Generally, the number of the second ONTs may be 1, or may be multiple, as long as the ONTs can acquire the wireless network information of the surrounding ONTs through the scanning manner, all the information may be considered as the second ONTs. Because the first ONT reports the wireless network information of the second ONT which can be scanned by the periphery of the first ONT to the OLT, the OLT can acquire the wireless network information of a plurality of ONTs connected with the OLT.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the reporting, by the first optical network terminal ONT, the first message to the OLT specifically includes: when the wireless network information of the first ONT changes, when the wireless network information of the second ONT obtained by scanning changes, or periodically, the first ONT reports a first message to the OLT. The ONT can report the first message to the OLT periodically or when the wireless network information changes, so that the wireless network information of the ONT can be reported regularly or in time.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the method further includes: the first ONT receives a query request sent by the OLT; scanning surrounding ONTs to obtain wireless network information of the surrounding ONTs; and sending a query response to the OLT, wherein the query response comprises the wireless network information of the surrounding ONTs. When a certain ONT is determined as an object to be detected, the OLT may actively consult whether wireless network information still exists in the object to be detected by its surrounding ONTs.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the first message further includes fault information of the second ONT. The ONT can actively report the fault information of other ONTs scanned by the ONT to the OLT.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the method further includes: receiving one or more fault messages broadcasted by the second ONT, wherein the fault messages comprise wireless network information of the second ONT and fault information of the second ONT.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the failure message further includes a sequence number; the method further comprises the following steps: and integrating the plurality of pieces of fault information included by the plurality of pieces of fault information into a complete piece of fault information of the second ONT according to the sequence numbers included in the fault information. The ONT can integrate the fault information of the received fault information according to the serial number, so that a piece of larger fault information can be divided into several fault messages for transmission.

In a third aspect, an embodiment of the present application provides an OLT, which may include a functional module configured to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, an embodiment of the present application provides an OLT, including: a non-volatile memory and a processor coupled to each other, the processor calling program code stored in the memory to perform part or all of the steps of any one of the methods of the first aspect.

In a fifth aspect, the present application provides a computer-readable storage medium storing program code, where the program code includes instructions for performing part or all of the steps of the first aspect or any one of the methods of the first aspect.

In a sixth aspect, embodiments of the present application provide an ONT, which may include functional modules for performing the method of the second aspect or any possible implementation manner of the second aspect.

In a seventh aspect, an embodiment of the present application provides an ONT, including: a non-volatile memory and a processor coupled to each other, the processor calling program code stored in the memory to perform part or all of the steps of any one of the methods of the second aspect.

In an eighth aspect, the present application provides a computer-readable storage medium storing program code, where the program code includes instructions for performing part or all of the steps of any one of the methods of the second aspect or the second aspect.

In a ninth aspect, an embodiment of the present application provides a system, including: an ONT according to any of the third aspects and an OLT according to any of the sixth aspects.

Drawings

Fig. 1 is a schematic structural diagram of a PON system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an OLT according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an ONT according to an embodiment of the present application;

fig. 4 is a schematic connection diagram of a WLAN according to an embodiment of the present application;

fig. 5 is a schematic diagram of a communication method provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of another OLT according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of another ONT according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an apparatus provided by an embodiment of the present application;

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the present application, the term "plurality" means two or more than two unless otherwise specified. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance. "A and/or B" of the present invention may be interpreted as either A or B, or include both A and B.

For better understanding of the present solution, before introducing the embodiments of the present solution, a PON is introduced.

Please refer to fig. 1, which is a schematic diagram of a system structure according to an embodiment of the present invention. The system comprises: a PON system 100 and a network device 200 coupled to the PON system 100. The upper Network device 200 may be Internet, a Community Access Television (CATV) Network, or a Network device 200 in Public Switched Telephone Network (PSTN). The passive optical network PON system 100 includes at least one OLT110 on a central office side, a plurality of ONUs 120 or a plurality of Optical Network Terminals (ONTs) 120 on a user side, and an ODN 130. The OLT110 is connected to network-side devices 200 (e.g., switches, routers, etc.) at an upper layer, and one or more ODNs 130 at a lower layer. The ONU provides a user-side interface for an Optical Access Network (OAN) while being connected to the ODN. An ONU is called an ONT if it provides a user port function at the same time, such as an ONU provides an Ethernet user port or a POTS (plain old telephone service) user port. It should be noted that, as used herein, the ONTs include ONUs and ONTs, unless otherwise specified. An ODN is a passive optical splitter, generally including a passive optical splitter (also called splitter), a trunk fiber, and a branch fiber. A passive optical splitter, also called an optical splitter, functions to distribute downstream data and to concentrate upstream data. The optical splitter is provided with a light splitting point, the light splitting point is connected with the upper-stage optical splitter through a branch optical fiber or is connected with the OLT through a main optical fiber, the optical splitter is provided with a plurality of ports, and the ports are connected with the lower-stage optical splitter or the ONT through the branch optical fiber. The optical signals from the upstream optical interfaces are distributed to all downstream optical interfaces for transmission, and the optical signals from the downstream optical interfaces are distributed to only one upstream optical interface for transmission. In the PON system, transmission from the OLT to the ONTs is called downlink transmission, transmission from the ONTs to the OLT is called uplink transmission, downlink transmission is to broadcast downlink data to the ONTs by the OLT, uplink transmission uses time division multiplexing, and the ONTs transmit the uplink data to the OLT in accordance with transmission time slots allocated by the OLT.

The PONs include various types, such as an asynchronous transfer mode PON (APON), a Broadband PON (BPON), an Ethernet PON (EPON), a Gigabit PON (GPON), a 10 gigabit ethernet PON (10G ethernet passive optical network, 10G-EPON), a 10 gigabit symmetric passive optical network (10-gigabit-symmetric passive optical network, XGS-PON), a 25 gigabit ethernet PON (25G passive optical network, 25G GPON), a 50 gigabit PON (50G passive optical network, 50G PON), and a 100 gigabit PON (100G passive optical network, 100G PON, wherein the PON and the PON are currently mainstream PON, and the PON is a type which is not limited by the examples given above, and the PON is a target PON type given by the examples given below, and the PON is a target PON type given below, and the examples given below are no more than 0 The 10G PON uses 1577nm wavelength, where the OLT broadcasts the downstream to all ONUs, each ONU only receiving data with its own identity. The various passive optical network systems defined by the above standards are incorporated by reference in their entirety.

The OLT110 may act as an intermediary between the optical network terminal 120 and the upper network devices 200, forward data received from the upper network as downstream data to the optical network terminal 120 through the ODN130, and forward upstream data received from the optical network terminal 120 to the upper network.

The ONUs 120 may be distributively located at customer-side locations (e.g., customer premises). The optical network unit 120 may be a network device for communicating with the optical line terminal 110 and a user, and specifically, the optical network unit 120 may serve as an intermediary between the optical line terminal 110 and the user, for example, the optical network unit 120 may forward downlink data received from the optical line terminal 110 to the user and forward data received from the user as uplink data to the optical line terminal 110 through the optical distribution network 130. It should be understood that the structure of the optical network unit 120 is similar to that of the ONT), and therefore, in the solution provided in this document, the optical network unit and the optical network terminal may be interchanged.

The ODN130 may include optical fibers, optical couplers, optical splitters, and/or other devices. In one embodiment, the optical fiber, optical coupler, optical splitter, and/or other device may be a passive optical device. That is, the optical fiber, optical coupler, optical splitter, and/or other devices may be devices that do not require power support to distribute data signals between the OLT110 and the optical network terminal 120. In the branching structure shown in fig. 1, the ODN130 may specifically extend from the OLT110 to the plurality of optical network terminals 120 by using two-stage optical splitting, but may also be configured in any other point-to-multipoint (e.g. single-stage optical splitting or multi-stage optical splitting) or point-to-point structure, which is not limited in this embodiment.

Fig. 2 is a schematic structural diagram of the OLT110 according to an embodiment of the present disclosure. The specific structural configuration of the OLT110 may vary depending on the specific type of ODN 100. As shown in fig. 2, the OLT110 may include a processing component 1101, an optical component 1102, a storage module 1103 and a power supply module 1104, where the optical component 1102 includes a downlink optical signal transmitter and an uplink optical signal receiver, and the processing component 1101 may be an SOC, such as: the SOC may be a MAC chip and one or more general purpose CPUs or the like. When the OLT needs to send an optical signal, the processing component 1101 sends a command to a Laser Detector Diode (LDD) (not shown) so that the LDD powers the downstream optical signal transmitter, so that the downstream optical signal transmitter can send the downstream optical signal to the ONT 120. The uplink optical signal receiver may receive an uplink optical signal sent by the ONT120 through the ODN130, and after the uplink optical signal is converted into an uplink electrical signal by the optical component 1102, the optical component 1102 provides the uplink electrical signal to the processing component 1101 for data analysis and processing. The storage module 1103 may be used to store data processed by the OLT or information received by the optical component 1102, such as: the storage module 1103 may store a corresponding relationship between the first ONT and the second ONT, where the first ONT and the second ONT may obtain the wireless network information of the other party through scanning, and the corresponding relationship includes a corresponding relationship between an ONT identifier of the first ONT and an ONT identifier of the second ONT; or the corresponding relation between the ONT wireless network information of the first ONT and the wireless network information of the second ONT; or the corresponding relation between the ONT identification of the second ONT and the wireless network information of the second ONT; or the corresponding relation between the ONT identification of the second ONT and the wireless network information of the first ONT; or the corresponding relationship among the ONT identifier of the first ONT, the wireless network information of the first ONT and the ONT identifier of the second ONT; or the corresponding relationship among the ONT identifier of the first ONT, the wireless network information of the second ONT and the ONT identifier of the second ONT; or the corresponding relation among the ONT identifier of the first ONT, the wireless network information of the first ONT and the wireless network information of the second ONT; or the four corresponding relations among the ONT identifier of the first ONT, the wireless network information of the second ONT and the ONT identifier of the second ONT. The power module 1104 provides power resources for the various modules of the OLT 110. In one embodiment, the OLT110 may further comprise a communication interface for communicating with the network management device 140. The communication interface may use any transceiver or the like for communicating with the network management device 140 through a communication network, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

Fig. 3 is a schematic structural diagram of an ONT120 according to an embodiment of the present application, where the ONT120 has an ONT with a wireless network function. As shown in fig. 3, ONT120 may include a storage module 1201, a processing component 1202, a wireless network module 1203, an optical component 1204, and a power supply module 1205, where the storage module 1201 may be used to store information received by the wireless network module 1203 or the optical component 1204 of the ONT120, such as: wireless network information of other ONTs or failure information of other ONTs that the ONT120 can scan. The processing component 1202 comprises a processor that can be configured to process information received by the wireless network module 1203 or the optical component 1204, such as: acquiring wireless network information of other ONTs that the ONT120 can scan from the beacon frame, etc., the processing component 1202 may be a System On Chip (SOC), such as: the SOC may integrate a (Media Access Control, MAC) chip, a Central Processing Unit (CPU), and the like. The wireless network module 1203 may be a wireless local area network Authentication and Privacy Infrastructure (WLAN Authentication and Privacy Infrastructure, wap) module or a wireless-fidelity (wifi) module. The wireless network module 1203 may be used to actively scan surrounding ONTs or passively receive beacon frames broadcasted by surrounding ONTs. The optical module 1204 includes an upstream optical signal transmitter and a downstream optical signal receiver. The uplink service optical signal is an optical signal that is sent by the ONT120 to the OLT110 and used for transmitting data, for example, an uplink optical signal used for reporting a first message or a query response to the OLT 110. The downlink optical signal receiver is configured to receive a downlink optical signal of the query request, and other components (such as an optical-to-electrical converter and the like, which are not described herein again) of the optical component 1204 also convert the downlink optical signal into a downlink electrical signal. The power module 1205 may be a battery or an external power supply, and the power module 1205 provides power resources for other components of the ONT.

The technical concept of the wireless local area network is further described below

A Wireless Local Area Network (WLAN) is a Network with Wireless communication access function in a short distance, and its Network connection capability is very strong. There are various types of transport protocols for WLANs, such as: the WLAN comprises two types, namely wap and wifi, and wap is also a security mandatory standard of the wireless local area network. Wifi is a WLAN transmission protocol specified by the IEEE802.11 series of technical standards, such as: IEEE802.11g can realize the transmission rate of 54M bit/S, and IEEE802.11n can realize the transmission rate of 600M bit/S at the highest. The structure of the WLAN is further described below.

As shown in fig. 4, the WLAN includes a station 401 (STA) and an access point 402 (AP). Where a STA is a device connected to a WLAN, such a device may communicate with other STAs or outside the WLAN via the AP. The STA can be a terminal device supporting the WLAN protocol, such as a notebook computer, a mobile phone, a tablet computer and intelligent wearable equipment. An AP is a special node of a WLAN through which a STA can be provided with WLAN-based wireless access services to enable the AP to communicate with the inside and outside of the WLAN, and is usually a creator of the WLAN, and may also be referred to as a hotspot. The AP can be a wireless router or terminal equipment with AP functions, such as a notebook computer, a mobile phone, a tablet computer, intelligent wearable equipment and the like. WLANs also include wireless media (wireless media) and Distribution Systems (DS), and in the 802.11 standard, two physical layers of wireless media are defined, including: radio frequency physical layers (2.4GHz and 5GHz) and infrared physical layers. The DS is a network, typically an ethernet, to which the APs are connected for forwarding frames between the APs. A Basic Service Set (BSS), which is a basic component of an 802.11 wireless network, is composed of a group of STAs communicating with each other. In a BSS that includes an AP, STAs can wirelessly communicate with each other within the service area of the BSS (i.e., within the coverage area of the radio frequency signal), and if a STA moves out of the service area of the BSS, it cannot communicate with other STAs of the BSS. Further, a larger-scale virtual BSS formed by a plurality of BSSs, which is called an Extended Service Set (ESS), may be used, and STAs in an ESS may communicate with each other, specifically as shown in fig. 4, an ESS includes 3 BSSs, which are BSS1, BSS2 and BSS3, and the BSS includes 3 STAs 401 and 1 AP402, fig. 4 is only an illustration, the number of BSSs and the number of STAs included in the BSS are not fixed, and the number of BSSs and the number of STAs included in the BSS may be dynamically changed, for example, when a certain station 401 leaves the BSS, the number of stations of the BSS is reduced. Typically, a BSS contains only one AP, and once the AP leaves or is corrupted, the BSS disappears. As shown in fig. 4, BSS1, BSS2 and BSS3 belong to the same ESS, BSS4 belongs to another ESS, which is not shown, and SSIDs of the same ESS may be the same.

In a WLAN, a specific WLAN is identified by a Service Set Identifier (SSID), all STAs and APs in the same service set must have the same SSID, otherwise, communication cannot be performed. The SSID contains a Basic Service Set Identifier (BSSID) and an Extended Service Set Identifier (ESSID). The BSSID is used to identify the BSS and the ESSID is used to identify the ESS. The BSSID belongs to a physical address, which may be the MAC address of an AP within a BSS where the STA may use the BSSID to identify the AP to the BSS, for example: the BSSID may specifically be generated from an arbitrary code of 46 bits, each BSSID being globally unique. The BSSID and SSID are mapped one to one within the same AP. The SSID is the same within an ESS, but the BSSID corresponding to it is different for each AP within the ESS. If an AP can support multiple SSIDs simultaneously, the AP assigns different BSSIDs to correspond to the SSIDs. In the IEEE802.11 standard, the BSSID is 48 bits in length. This field uniquely identifies each BSS. The BSSID is the MAC address of the AP and is not modifiable and the ESSID is broadcast by the AP and is modifiable.

The AP periodically broadcasts Beacon (Beacon) frames, primarily to inform the AP of the presence, with a period determined by a Beacon interval (Beacon interval), which may include the BSSID, SSID, and Beacon interval. Beacon Interval: indicating the time interval during which the AP regularly broadcasts its BSSID. This is not typically set specifically, and a default value may be used. If the broadcast is not carried out, the STA end may find that the network of BSSID corresponding to the AP which is broadcast irregularly is not found when scanning, so that the connection may be disconnected. Here, the periodic broadcast indicates that the AP will broadcast BSSID information to its range periodically to indicate the presence of the AP, so that after the STA enters an area, it can know whether the AP is present in the area through scanning. Of course, in addition to the AP broadcasting the BSSID to inform it that a wireless network exists, the STA may also actively broadcast a probe packet asking whether an AP exists within its coverage area.

As shown in fig. 5, the present embodiment provides a communication method, which can be applied in the field of ONT fault recognition, and the method is applied in the system architecture shown in fig. 4, where multiple access points 402 may belong to the same ESS or different ESS, each BSS includes an access point 402 that is an ONT with wireless network function, and at least two ONTs are connected to the same OLT, and for convenience of description, the multiple ONTs are divided into an ONT1, an ONTi, and an ONTj, each of the ONTi and the ONTj may be any one other than the ONT1, and the ONT1, the ONTi, and the ONTj may scan each other for wireless network information of the other. For example: the ONT1 may scan for wireless network information for ONTi, which may scan for wireless network information for ONT1, assuming that ONTj fails during operation in this embodiment.

In step 501, the ONT1 reports a first message to the OLT, where the first message includes the wireless network information of the ONT1 itself and the wireless network information of the adjacent ONTi and ONTj that can be scanned.

Since the ONT1 has a wireless network function and belongs to an AP in a WLAN network, the BSSID of the BSS where the AP is located is the MAC address of the ONT1, which is the MAC address of the wireless network function. Around the ONT, there may be a plurality of ONTi and ONTj with wireless network function distributed, and these ONTi and ONTj in working status may form respective BSS as AP respectively.

The ONT1, which is an AP, may obtain wireless network information of the ONT1 itself and/or wireless network information of a neighboring ONTi (or ONTj) periodically, or the ONT1 may obtain own wireless network information when the own wireless network information changes. Alternatively, the ONT1 may also obtain the wireless network information of the neighboring ONTi (or ONTj) when the wireless network information of the neighboring ONTi changes, for example: when the ONT1 scans through a wireless network to the point that the number of adjacent ONTs having wireless network functions nearby changes or the name of an adjacent ONTi changes, the ONT1 obtains wireless network information of the adjacent ONTi. The wireless network information may include a BSSID, and the wireless network information may further include a wireless network name, etc. For convenience of description, the process of the ONT1 obtaining the wireless network information of the ONTj having a wireless network function is the same, taking the ONT1 to obtain the wireless network information of the ONT having a wireless network function as an example for describing ONTi.

The ONT1 obtains wireless network information of ONTi having wireless network function in two ways: the first method is as follows: an ONTi with a wireless network function may periodically broadcast a beacon (beacon) frame in a peripheral area, an ONT1 adjacent to the ONTi receives the beacon frame, the beacon frame carries the BSSID of the ONTi as the AP, and an ONT1 obtains the BSSID of the ONTi as the BSSID of the AP from the beacon frame. The second method comprises the following steps: the ONT1 actively sends a probe request to the ONTi, and the ONTi receives the probe request and sends a probe response (probe response) to the ONT1, wherein the probe response contains the wireless network information of the ONTi. It should be noted that: if the ONT1 receives a probe response or a beacon frame broadcast by an ONTi, the ONT1 needs to switch to the channel i on which the ONTi operates.

The ONT1 may report a first message to the OLT periodically, where the first message may include an ONT identifier of the ONT1, wireless network information of the ONT1, and wireless network information of one or more ontis adjacent to the ONT1, and at this time, the ONT1 needs to store the wireless network information of the ONTi when obtaining the wireless network information of each ONTi; the ONT1 may also report the first message to the OLT when obtaining the wireless network information of 1 neighboring ONTi, and at this time, the ONT1 may not need to store the wireless network information of the ONTi. The ONT identification may be an ONT ID, or other information that uniquely identifies the ONT in the PON realm. For example: the first message contains the contents of table one.

ONT ID	Self wireless network information	Wireless network information of ONT obtained by scanning
			001	BSSID1	BSSID2，BSSID3

Watch 1

Step 502: the OLT receives the first message sent by the ONT1, and stores the correspondence between the ONT1 and the adjacent ONTi and/or ONTj. If the ONT1 sees the first ONT, the ONTi/ONTj sees the second ONT, the correspondence between the ONT1 and the adjacent ONTi and/or ONTj can also be considered as the correspondence between the first ONT and the second ONT.

The corresponding relationship may be a corresponding relationship among an ONT identifier of any ONT, the wireless network information of any ONT, and the wireless network information of other ONTs that can be scanned by any ONT, or may be obtained and stored in sequence with one or more of the following corresponding relationships: the corresponding relation between the ONT identification of any ONT and the ONT identifications of other ONTs which can be scanned by the ONT; the corresponding relation between the ONT identification of any ONT and the wireless network information of other ONTs which can be scanned by the ONT; the corresponding relation between the wireless network information of any ONT and the wireless network information of other ONTs which can be scanned by the ONT; the corresponding relationship among the ONT identifier of any ONT, the ONT identifiers of other ONTs which can be scanned by any ONT and the wireless network information of other ONTs which can be scanned by any ONT, and the corresponding relationship among the ONT identifier of any ONT, the wireless network information of any ONT and the ONT identifiers of other ONTs which can be scanned by any ONT; the corresponding relationship among the wireless network information of any ONT, the ONT identifications of other ONTs that can be scanned by any ONT and the wireless network information of other ONTs that can be scanned by any ONT, and the corresponding relationship among the ONT identifications of any ONT, the wireless network information of any ONT, the ONT identifications of other ONTs that can be scanned by any ONT and the wireless network information of other ONTs that can be scanned by any ONT.

The correspondence relationship may be presented in a table form, and the correspondence relationship is described below by taking table two as an example, and it should be noted that there are many correspondence relationships described above, and thus there are various corresponding table forms. As shown in table two: the wireless network information of the ONT whose ONT ID is 001 is BSSID1, and the wireless network information of the ONT which it scans for is that of BSSID2 and BSSID 2.

Watch two

Step 503, when the OLT finds that the ONTj is in the state to be detected, the OLT may obtain the ONT identifiers of other ONTs that can scan the ONTj from the stored corresponding relationship between the ONT1 and the adjacent ONTi and/or the ONTj, and send query requests to the other ONTs. The other ONTs are here embodied as ONT1 and ONTi.

When the OLT finds that a signal of an ONTj is lost, it is determined that the ONTj may have a fault, and then the ONTj is in a state to be detected, where there may be various situations, such as: the handshake between the OLT and the ONT fails, and the OLT cannot receive the optical signal sent by the ONT. The OLT queries the wireless network information of other ONTs capable of scanning to obtain the detection object from the corresponding relation according to the ONT ID, acquires the ONT identifications of the other ONTs capable of scanning to obtain the detection object according to the queried wireless network information of the other ONTs capable of scanning to obtain the detection object, and sends a query request to the ONTs.

For example: when the OLT finds that the ONT signal with the ONT ID of 002 is lost, the OLT queries from the table two that other ONTs capable of scanning to obtain the ONT ID of 002 have two ONTs, the wireless network information of the two ONTs is BSSID1 and BSSID3, and then queries from the table two that the ONT ID corresponding to the BSSID1 is 001 and the ONT ID corresponding to the BBSID3 is 003. At this time, the OLT transmits the polling requests to the ONT1 with ONT ID 001 and the ONT3 with ONT ID 003, respectively.

Step 504, after receiving the query request sent by the OLT, the ONT1 scans the surrounding ONTs according to the query request, obtains the wireless network information of the surrounding ONTs, and sends a query response to the OLT, where the query response includes the wireless network information of the ONTs that can be scanned and obtained by the ONT 1. The process of scanning the peripheral ONTs may be an active scanning process or a passive scanning process, and since the process of scanning by the AP to obtain the wireless network information of other APs is the prior art, it is not described herein too much.

For convenience of description, this step describes only the ONT1 process, and the ONT3 process is the same as this step.

Step 505: the OLT receives the inquiry response sent by the ONT1, determines that the ONTj is a non-power-down fault if the inquiry response contains the wireless network information of the ONTj, and determines that the ONTi is a power-down fault if the inquiry response does not contain the wireless network information of the ONTj.

If the query response contains the wireless network information of the ONTj, it indicates that the wireless network function of the ONTj is still working, and indicates that the power supply of the ONTj has not failed, so the failure of the ONTj may be other types of non-power-down failures, such as: a failure occurs in the optical module, a failure occurs in the optical path between the ONTj and the OLT, and the like. If the inquiry response does not contain the wireless network information of the ONTj, the wireless network function of the ONTj does not work, and the OLT also judges that the optical transmission of the ONTj has a fault, so that the fault of the ONTj can be determined to be a power failure fault. Therefore, the OLT can judge the fault category or fault reason of the ONT to be detected by judging whether the query response reported by the ONT contains the wireless network information of the ONT to be detected.

If the first message is reported to the OLT when the wireless network information of the surrounding ONTs changes in step 501, the OLT may not need to perform step 503 and step 505, and the ONTs do not need to perform step 504. At this point the OLT may perform step 505'. The OLT waits for first messages reported by other ONTs around the ONTj, and the other ONTs around the ONTj can obtain the wireless network information of the ONTj. If the other ONTs (ONT1 and ONTj) which can scan the ONTj wireless network information do not report the first message within a period of time after the fault occurs, or the reported first message still contains the wireless network information of the ONTj, the wireless network function of the ONTj still works, and the fault occurring in the ONTj is determined to be a non-power-down fault; if the first message is reported by other ONTs around the ONTj within a period of time after the fault occurs and the first message does not have the wireless network information of the ONTj, it indicates that the wireless network function of the ONTj does not work, and it is determined that the fault occurring at the ONTj is a power failure fault. Therefore, the OLT can judge the fault category or fault reason of the ONT to be detected by the fact that the first message reported by the ONT contains the wireless network information of the ONT to be detected.

The embodiment of the present invention also discloses another embodiment, when an ONT has a non-power-down fault, the ONT may actively broadcast fault information of the ONT to other surrounding ONTs, and the non-power-down fault has a plurality of conditions, for example: the handshake between the OLT and the ONT fails, and the OLT cannot receive the optical signal sent by the ONT and the ONT emits light abnormally. The fault categories may be classified into PON line faults, ONT hardware faults, ONT software faults, power down faults, and the like.

Assuming that a non-power-down cause failure occurs in one ONTk of the plurality of ontis, the ONTk broadcasts a beacon frame to the periphery, where the beacon frame includes wireless network information of the ONTk as an AP and failure information of the ONTk. The fault information may be presented in clear text, encoded or encrypted. Illustratively, the beacon frame is as shown in table three, the failure information may be set in the field of the original SSID of the beacon frame, the beacon frame may further include a failure identification bit, and other ONTs around the ONTk may identify that the ONTk has failed through the failure identification. The failure information may be specific failure details or failure category, and the failure details are a detailed description of the failure of the ONTk. When the fault information is complex and one beacon frame cannot carry fault details, the fault information is distributed in multiple beacon frames, and the ONT can broadcast multiple beacon frames in a circulating manner, where the beacon frame further includes a sequence number used for marking the sequence number of the beacon frame, as shown in table 4. When other surrounding ONTs of the ONTk receive the plurality of beacon frames broadcasted by the failed ONT, the failure information of the plurality of beacon frames is sorted according to the sequence number, so that the complete failure information of the ONTk can be obtained, and a first message carrying the wireless network information of the ONTk and the failure information of the ONTk is sent to the OLT. When the OLT receives a first message sent by another ONT (ONT1 or ONTi) adjacent to the ONTk, the OLT can know the failure reason of the ONTk or the failure category of the ONTk through the wireless network information of the ONTk and the failure information of the ONTk carried in the first message.

Wireless network information

Fault identification bit

Fault information

Watch III

Wireless network information

Serial number

Fault identification bit

Fault information

Watch four

Because the first message reported by the ONT to the OLT already contains the fault information reported by the ONTs with peripheral faults, the OLT can judge the fault category or fault reason of the ONT to be detected by the first message reported by the ONT containing the fault information.

Fig. 6 is a schematic structural diagram of an OLT according to the present application. The OLT may be configured to implement the methods of the corresponding parts described in the above method embodiments, and refer to the description in the above method embodiments specifically. The OLT comprises a transceiver 601 and a memory module 602, specifically: a transceiver 601, configured to receive a first message reported by a first optical network terminal ONT, where the first message includes an ONT identifier of the first ONT and wireless network information of a second ONT, where the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by scanning the first ONT; a storage module 602, configured to store a corresponding relationship between the first ONT and the second ONT.

Further, the first message further includes wireless network information of the first ONT.

Further, the transceiver 601 is further configured to receive a second message reported by the second ONT, the ONT identifier of the second ONT, and the second ONT wireless network information.

Further, the transceiver 602 is further configured to send a query request to the second ONT according to a corresponding relationship between the first ONT and the second ONT when the first ONT is determined to be the object to be detected; receiving a query response sent by the second ONT, wherein the query response comprises wireless network information of one or more ONTs scanned by the second ONT.

Further, the ONT further includes a first determining module 603, configured to determine that the fault of the first ONT is a non-power-down fault if the wireless network information of the one or more ONTs scanned by the second ONT includes the wireless network information of the first ONT.

Further, the ONT further includes a second determining module 604, configured to determine that the fault of the first ONT is a power failure fault if the wireless network information of the one or more ONTs scanned by the second ONT does not include the wireless network information of the first ONT.

Further, the ONT further comprises a third determining module 605, configured to determine an ONT identifier of the second ONT according to the wireless network information of the second ONT; and determining the fault category of the second ONT according to the ONT identification of the second ONT and the fault information of the second ONT. At this time, the first message further includes failure information of the second ONT.

It should be noted that the first determining module 603, the second determining module 604 and the third determining module 605 may be integrated into one functional module, such as: a processor.

Fig. 7 is a schematic structural diagram of an ONT provided in the present application. The optical network terminal ONT is a first ONT, and the first ONT may be used to implement the method of the corresponding part described in the above method embodiment, specifically refer to the description in the above method embodiment. The OLT includes a transceiver module 701 configured to report a first message to an optical line terminal OLT, where the first message includes an ONT identifier of a first ONT and wireless network information of a second ONT, where the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by scanning the first ONT.

Further, the transceiver module 701 is specifically configured to report the first message to the OLT by the first ONT when the wireless network information of the first ONT changes, when the wireless network information of the second ONT obtained by scanning changes, or periodically.

Further, the transceiver module 701 is further configured to: receiving a query request sent by the OLT; sending a query response to the OLT, wherein the query response is used for scanning surrounding ONTs and acquiring wireless network information of the surrounding ONTs; the query response includes wireless network information of the surrounding ONTs.

Further, the transceiver module 701 is further configured to receive one or more fault messages broadcasted by the second ONT, where the fault messages include wireless network information of the second ONT and fault information of the second ONT.

Further, the optical network terminal further includes an integration module 702, configured to integrate, according to the sequence number included in the fault message, multiple pieces of fault information included in the multiple pieces of fault messages into a complete piece of fault information of the second ONT.

Fig. 8 is a schematic structural diagram of an apparatus provided in the present application. The device may be an OLT or an ONT. The apparatus may be used to implement the methods of the corresponding parts described in the above method embodiments, specifically referring to the description in the above method embodiments.

The apparatus may comprise one or more processors 801, which processors 801 may also be referred to as processing units and may perform certain control functions. The processor 801 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a baseband chip, a DU, or a CU, etc.), execute a software program, and process data of the software program.

In one possible design, the processor 801 may also have instructions 804 stored therein, and the instructions 804 may be executed by the processor to cause the apparatus to perform the method corresponding to the apparatus described in the above method embodiment.

In yet another possible design, the device may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments.

Optionally, one or more memories 802 may be included in the device, the memories 802 storing instructions 802 or intermediate data, and the instructions 805 being executable on the processor 801 to cause the device to perform the method described in the above method embodiments. Optionally, other related data may also be stored in the memory 802. Optionally, instructions and/or data may also be stored in the processor 801. The processor 801 and the memory 802 may be provided separately or may be integrated together.

Optionally, the device may also include a transceiver 803. The processor 803 may be referred to as a processing unit. The transceiver 803 may be referred to as a transceiving unit, a transceiver, a transceiving circuit, a transceiver, or the like, for implementing transceiving functions of a communication device.

The present application further provides a readable storage medium, in which an execution instruction is stored, and when the execution instruction is executed by at least one processor of the device, the device executes the method of communication in the above method embodiment.

The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the execution instructions from the readable storage medium, and the execution of the execution instructions by the at least one processor causes the device to implement the method of communication in the above-described method embodiments.

In the various embodiments of the present application described above, all or part of the implementation may be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions can be stored on a computer readable storage medium or transmitted from one computer readable medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

receiving a first message reported by a first optical network terminal ONT, wherein the first message comprises an ONT identifier of the first ONT and wireless network information of a second ONT, the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by scanning the first ONT;

and establishing and storing the corresponding relation between the first ONT and the second ONT.

2. The method of claim 1, wherein the first message further comprises wireless network information of the first ONT.

3. The method of claim 2, further comprising: and receiving a second message reported by the second ONT, the ONT identifier of the second ONT and the wireless network information of the second ONT.

4. The method according to claim 3, wherein the correspondence between the first ONT and the second ONT is specifically one or more of the following:

the ONT identification of the first ONT and the ONT identification of the second ONT are in corresponding relation; or

The corresponding relation between the ONT identification of the first ONT and the wireless network information of the second ONT; or

Corresponding relation between ONT wireless network information of the first ONT and ONT identification of the second ONT; or

The corresponding relation between the ONT wireless network information of the first ONT and the wireless network information of the second ONT; or

The corresponding relation among the ONT identifier of the first ONT, the wireless network information of the first ONT and the ONT identifier of the second ONT; or

The corresponding relation among the ONT identification of the first ONT, the wireless network information of the first ONT and the wireless network information of the second ONT; or

The corresponding relation among the ONT identifier of the first ONT, the ONT identifier of the second ONT and the wireless network information of the second ONT; or

The corresponding relation among the wireless network information of the first ONT, the ONT identification of the second ONT and the wireless network information of the second ONT; or

And the ONT identifier of the first ONT, the wireless network information of the second ONT and the ONT identifier of the second ONT are in corresponding relation.

5. The method of any of claims 1-4, further comprising:

when the first ONT is determined to be an object to be detected, sending a query request to the second ONT according to the corresponding relation between the first ONT and the second ONT;

receiving a query response sent by the second ONT, wherein the query response comprises wireless network information of one or more ONTs scanned by the second ONT.

6. The method of claim 5, further comprising:

and if the wireless network information of one or more ONTs scanned by the second ONT comprises the wireless network information of the first ONT, determining that the fault of the first ONT is a non-power-down fault.

7. The method of claim 5, further comprising:

and if the wireless network information of one or more ONTs scanned by the second ONT does not include the wireless network information of the first ONT, determining that the fault of the first ONT is a power failure fault.

8. The method according to claim 5, wherein the determining that the first ONT is the object to be detected specifically includes: and within a preset time, the optical signal sent by the first ONT cannot be received.

9. The method according to any of claims 1 to 8, wherein the wireless network information is specifically a basic service set identification, BSSID.

10. The method of claim 1, wherein the first message further comprises failure information of the second ONT, and wherein the method further comprises:

determining an ONT identifier of the second ONT according to the wireless network information of the second ONT;

and determining the fault category of the second ONT according to the ONT identification of the second ONT and the fault information of the second ONT.

11. The method according to claim 10, characterized in that the fault information comprises fault details and/or fault categories.

12. A method of communication, comprising:

a first optical network terminal ONT reports a first message to an optical line terminal OLT, where the first message includes an ONT identifier of the first ONT and wireless network information of a second ONT, the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by the first ONT through scanning.

13. The method according to claim 12, wherein the first optical network terminal ONT reports a first message to the OLT, specifically:

when the wireless network information of the first ONT changes, when the wireless network information of the second ONT obtained by scanning changes, or periodically, the first ONT reports a first message to the OLT.

14. The method of claim 12 or 13, further comprising:

receiving a query request sent by the OLT;

scanning surrounding ONTs to obtain wireless network information of the surrounding ONTs;

and sending a query response to the OLT, wherein the query response comprises the wireless network information of the surrounding ONTs.

15. The method of claim 12, wherein the first message further comprises failure information of the second ONT.

16. The method of claim 15, further comprising: receiving one or more fault messages broadcasted by the second ONT, wherein the fault messages comprise wireless network information of the second ONT and fault information of the second ONT.

17. The method of claim 16, wherein the failure message further comprises a sequence number; the method further comprises the following steps:

and integrating the plurality of pieces of fault information included by the plurality of pieces of fault information into a complete piece of fault information of the second ONT according to the sequence numbers included in the fault information.

18. A method according to any of claims 15-17, characterized in that the fault information comprises fault details and/or fault categories.

19. The method according to any of claims 12-18, wherein the wireless network information identifies a BSSID for a basic service set.

20. An optical line terminal, comprising:

a transceiver, configured to receive a first message reported by a first optical network terminal ONT, where the first message includes an ONT identifier of the first ONT and wireless network information of a second ONT, where the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by scanning the first ONT;

and the storage module is used for storing the corresponding relation between the first ONT and the second ONT.

21. The olt of claim 20, wherein the first message further comprises wireless network information for the first ONT.

22. The olt of claim 21, wherein the transceiver is further configured to receive a second message reported by the second ONT, an ONT identity of the second ONT, and the second ONT wireless network information.

23. The olt of any one of claims 20-22, wherein the transceiver is configured to send a query request to the second ONT according to a correspondence between the first ONT and the second ONT when it is determined that the first ONT is an object to be detected; receiving a query response sent by the second ONT, wherein the query response comprises wireless network information of one or more ONTs scanned by the second ONT.

24. The olt of claim 23, further comprising: a first determining module, configured to determine that a failure of the first ONT is a non-power-down failure if the wireless network information of one or more ONTs scanned by the second ONT includes the wireless network information of the first ONT.

25. The olt of claim 23, further comprising: a second determining module, configured to determine that the failure of the first ONT is a power failure if the wireless network information of the one or more ONTs scanned by the second ONT does not include the wireless network information of the first ONT.

26. The olt of claim 23, wherein the first message further includes failure information for the second ONT, wherein the olt further comprises: a third determining module, configured to determine an ONT identifier of the second ONT according to the wireless network information of the second ONT; and determining the fault category of the second ONT according to the ONT identification of the second ONT and the fault information of the second ONT.

27. An optical network terminal, wherein the optical network terminal ONT is a first ONT and comprises:

a transceiver module, configured to report a first message to an optical line terminal OLT, where the first message includes an ONT identifier of a first ONT and wireless network information of a second ONT, where the first ONT has a wireless network function and the second ONT has a wireless network function, and the wireless network information of the second ONT is obtained by scanning the first ONT.

28. The onu of claim 27, wherein the transceiver module is specifically configured to report a first message to the OLT when the wireless network information of the first ONT changes, when the wireless network information of the second ONT obtained by scanning changes, or periodically.

29. The onu according to claim 27 or 28, wherein the transceiver module is further configured to: receiving a query request sent by the OLT; scanning surrounding ONTs to obtain wireless network information of the surrounding ONTs; and sending a query response to the OLT, wherein the query response comprises the wireless network information of the surrounding ONTs.

30. The ONT of claim 29, wherein the transceiver module is further configured to receive a fault message broadcasted by one or more of the second ONTs, wherein the fault message comprises wireless network information of the second ONT and fault information of the second ONT.

31. The ONT of claim 30, further comprising an integrating module, configured to integrate the plurality of pieces of fault information included in the plurality of fault messages into a complete piece of fault information of the second ONT according to the sequence numbers included in the fault messages.

32. A passive optical network system comprising an optical network terminal as claimed in any of claims 27 to 31 and an optical line terminal as claimed in any of claims 20 to 26.