CN112640481B - Multimode optical network terminal ONT and passive optical network PON system - Google Patents

Abstract

The embodiment of the application discloses a multimode optical network terminal ONT and a passive optical network PON system, relates to the field of optical networks, and solves the problem that upgrading operation of the ONT is complex. The specific scheme is as follows: the ONT comprises an ONT control management module, N ONT protocol processing modules and M ONT optical modules, wherein the ONT control management module is respectively connected with the N ONT protocol processing modules and the M ONT optical modules; one ONT protocol processing module is connected with at least one ONT optical module, and one ONT optical module is connected with at least one ONT protocol processing module; and the ONT control management module is used for controlling the N ONT protocol processing modules and the M ONT optical modules to work in P modes according to the P mode control signals, the modes comprise an uplink rate, a downlink rate, an uplink wavelength and a downlink wavelength, and P is an integer greater than or equal to 2. The embodiment of the application is used in the ONT upgrading process.

Description

A multimode optical network terminal ONT and passive optical network PON system

technical field

The embodiments of the present application relate to the field of optical networks, and in particular, to a multimode optical network terminal ONT and a passive optical network PON system.

Background technique

A passive optical network (PON) mainly includes an optical line terminal (OLT) located at the central office end, an optical distribution network (ODN) and at least one optical network unit (optical network) located at the user end unit, ONU) or at least one optical network terminal (optical network terminal, ONT). The ODN provides an optical transmission channel between the OLT and the ONU, and the ODN includes passive components such as optical fibers and passive optical splitters (splitters). FIG. 1 is an example diagram of a system architecture of a PON provided by the prior art. According to the difference of uplink and downlink rates and uplink and downlink wavelengths, PONs can be divided into various modes, for example, ethernet passive optical network (EPON), gigabit-capable passive optical network (GPON) And 10Gbit passive optical network (10gigabit-capable passive optical network, XG-PON) and so on.

With the development of various services, the user's demand for bandwidth is increasing. Therefore, the existing PON system needs to be upgraded. For example, upgrading from a GPON system to an XG-PON system. On the OLT side, when an OLT is added, the optical signals of two or more single-mode OLTs can be multiplexed into the same ODN through the multiplexer and demultiplexer to realize OLT upgrade. On the ONT side, upgrade on demand. Users who need to upgrade can replace the ONT with a high-speed mode; or, replace a single-mode ONT with a multi-mode ONT. The multimode ONT protocol processing module in the multimode ONT makes the multimode ONT work in different modes.

However, the above-mentioned upgrade methods all realize the upgrade of the PON system through manual operation, and the upgrade operation is relatively complicated. Moreover, since the ONT is a user-side device and may be in different locations, the upgrade workload is large. Even if the user uses a multi-mode ONT, the staff needs to come to the door or send the optical module to the user, and the user still needs to complete the replacement of the ONT optical module by himself.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a multi-mode optical network terminal ONT and a passive optical network PON system, which solves the problem of complicated ONT upgrade operations.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

In a first aspect, an embodiment of the present application provides a multi-mode ONT, including: the multi-mode ONT includes an ONT control management module, a service processing module, N ONT protocol processing modules and M ONT optical modules, where N is greater than or equal to An integer of 1, M is an integer greater than or equal to 1; wherein, the ONT control management module is respectively connected with the service processing module, N ONT protocol processing modules and M ONT optical modules; the service processing module is connected with N ONT protocol processing modules ; One ONT protocol processing module is connected to at least one ONT optical module, and one ONT optical module is connected to at least one ONT protocol processing module. The ONT control and management module is used to control the N ONT protocol processing modules and the M ONT optical modules to work in P modes according to the P mode control signals. The modes include uplink rate, downlink rate, uplink wavelength and downlink wavelength. P is greater than or An integer equal to 2.

For the downlink, the ONT optical module is used to obtain the downlink optical signal of the corresponding mode according to the mode control signal, convert the downlink optical signal of the corresponding mode into the downlink electrical signal of the corresponding mode, and transmit the downlink electrical signal of the corresponding mode to the ONT Protocol processing module. The ONT protocol processing module is used for acquiring service information from the downlink electrical signal of the corresponding mode according to the mode protocol corresponding to the mode control signal, and transmitting the service information to the service processing module.

For the uplink, the ONT protocol processing module is also used to convert the service information obtained from the service processing module into the uplink electrical signal corresponding to the mode protocol according to the mode protocol corresponding to the mode control signal, and transmit the uplink electrical signal corresponding to the mode protocol. to the ONT optical module. The ONT optical module is also used to convert the uplink electrical signal of the corresponding mode protocol into the uplink optical signal of the corresponding mode according to the mode control signal, and send the uplink optical signal of the corresponding mode.

The multimode ONT provided by the embodiment of the present application controls N ONT protocol processing modules and M ONT optical modules to work in P modes through P mode control signals, so that the multimode ONT can control the signals according to the mode without manual operation. It works in any of the P modes, so that in the process of multi-mode ONT upgrade, the multi-mode ONT can independently upgrade from one mode to another mode, effectively reducing the complexity of multi-mode ONT upgrade operations. , and the engineering time and cost of the upgrade operation.

The specific connection mode of the N ONT protocol processing modules and the M ONT optical modules can be jointly determined according to factors such as the working modes of the ONT protocol processing modules and the ONT optical modules, and the number of modules. Exemplarily, the N ONT protocol processing modules and the M ONT optical modules may include the following connection modes.

In the first possible design, when N=1 and M=1, the multimode ONT includes an ONT protocol processing module and an ONT optical module. The ONT protocol processing module is a multi-mode ONT protocol processing module, and the ONT optical module is a transceiver-adjustable multi-mode ONT optical module.

For the downlink, the tunable multi-mode ONT optical module is used to obtain the i-th downlink optical signal according to the i-th mode control signal, convert the i-th downlink optical signal into the i-th downlink electrical signal, and convert the i-th downlink electrical signal to the i-th downlink electrical signal. It is transmitted to the multi-mode ONT protocol processing module, where i is an integer, i is taken from 1 to P, the i-th mode control signal is used to control the multi-mode ONT protocol processing module and the transceiver adjustable multi-mode ONT optical module to work in the i-th mode, The downlink rate of the i-th downlink optical signal is the downlink rate corresponding to the i-th mode, and the downlink wavelength of the i-th downlink optical signal is the downlink wavelength corresponding to the i-th mode. The multi-mode ONT protocol processing module is used for acquiring service information from the i-th downlink electrical signal according to the i-th mode protocol, and transmitting the service information to the service processing module.

For the uplink, the multi-mode ONT protocol processing module is also used to convert the service information obtained from the service processing module into the uplink electrical signal corresponding to the i-th mode protocol according to the i-th mode protocol, and convert the uplink signal corresponding to the i-th mode protocol The electrical signal is transmitted to the transceiver adjustable multi-mode ONT optical module. The transceiver adjustable multi-mode ONT optical module is also used to convert the uplink electrical signal corresponding to the i-th mode protocol into the i-th uplink optical signal according to the i-th mode control signal, and transmit the i-th uplink optical signal. The uplink rate is the uplink rate corresponding to the i-th mode, and the uplink wavelength of the i-th uplink optical signal is the uplink wavelength corresponding to the i-th mode.

In order for the multi-mode ONT to work in P modes according to the control of the P mode control signals, the adjustable multi-mode ONT optical module for transceiving may include R receiving channels and T transmitting channels, where R is an integer greater than or equal to 1 , T is an integer greater than or equal to 1. Specifically, the following implementations may be included.

Manner 1, when R=1 and T=1, the transceiver adjustable multi-mode ONT optical module may include one receiving channel and one transmitting channel. The receiving channel includes a wavelength tunable filter, a multi-rate photodetector, a multi-rate transimpedance amplifier and a multi-rate limiting amplifier; the transmitting channel includes a multi-rate laser driver and a multi-rate tunable wavelength laser. The transceiver adjustable multi-mode ONT optical module also includes the ONT optical module control and management module and the multiplexer and demultiplexer. Among them, the ONT optical module control and management module is respectively connected with multi-rate laser driver, multi-rate tunable wavelength laser, wavelength tunable filter, multi-rate photodetector, multi-rate transimpedance amplifier and multi-rate limiting amplifier; multi-rate laser The driver is connected with the multi-rate tunable wavelength laser; the multi-rate tunable wavelength laser is connected with the multiplexer and demultiplexer; the wavelength tunable filter is respectively connected with the multi-rate photodetector and the multiplexer and demultiplexer; The rate transimpedance amplifier is connected; the multirate transimpedance amplifier is connected to the multirate limiting amplifier.

The ONT optical module control and management module is used to control the receiving channel and the transmitting channel to work in the i-th mode according to the i-th mode control signal.

For the downlink, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the band range of the i-th mode in the downlink optical signal to the receiving channel. Specifically, the wavelength tunable filter is used to obtain the i-th downlink optical signal from the downlink optical signal obtained by the multiplexer and demultiplexer according to the i-th mode control signal, and transmit the i-th downlink optical signal to the multi-rate photodetector . The multi-rate photodetector is used to convert the i-th downlink optical signal into the i-th downlink electrical signal according to the i-th mode control signal, and transmit the i-th downlink electrical signal to the multi-rate transimpedance amplifier. The multi-rate transimpedance amplifier is used to amplify the i-th downlink electrical signal, and transmit the amplified i-th downlink electrical signal to the multi-rate limiting amplifier. The multi-rate limiting amplifier is used to adjust the amplitude of the amplified i-th downlink electrical signal.

For the uplink, the multi-rate laser driver is used to convert the uplink electrical signal corresponding to the i-th mode protocol received from the multi-mode ONT protocol processing module to the i-th mode that drives the multi-rate tunable wavelength laser to emit light according to the i-th mode control signal. The i uplink electrical signal is the uplink electrical signal corresponding to the i th mode, and the i th uplink electrical signal is transmitted to the multi-rate tunable wavelength laser. The multi-rate tunable wavelength laser is used to convert the i-th uplink electrical signal obtained from the multi-rate laser driver into the i-th uplink optical signal according to the i-th mode control signal, and transmit the i-th uplink optical signal to the multiplexer and demultiplexer . The multiplexer and demultiplexer is used to couple the i-th uplink optical signal into the ODN. It should be noted that the coupling can also be understood as conduction, that is, the i-th uplink optical signal is transmitted to the ODN.

Therefore, the transceiver adjustable multi-mode ONT optical module is controlled to work in P modes through P mode control signals, and the multi-mode ONT can work in any of the P modes according to the mode control signal without manual operation, so that the During the multi-mode ONT upgrade process, the multi-mode ONT independently upgrades from one mode to another, effectively reducing the complexity of the multi-mode ONT upgrade operation.

Mode 2, when R=2 and T=2, the transceiver-adjustable multi-mode ONT optical module may include two receiving channels and two transmitting channels. The first receiving channel includes a first wavelength filter, a first photodetector, a first transimpedance amplifier and a first limiting amplifier, the first transmitting channel includes a first laser driver and a first laser, and the second receiving channel includes a second A wavelength filter, a second photodetector, a second transimpedance amplifier and a second limiting amplifier, the second transmission channel includes a second laser driver and a second laser, and the transceiver tunable multi-mode ONT optical module also includes an ONT optical module control Management modules and multiplexers and demultiplexers. The ONT optical module control and management module is respectively connected with the first laser driver, the first laser, the first wavelength filter, the first photodetector, the first transimpedance amplifier, the first limiting amplifier, the second laser driver, the second The laser, the second wavelength filter, the second photodetector, the second transimpedance amplifier and the second limiting amplifier are connected; the first laser driver is connected with the first laser; the first laser is connected with the wavelength combiner and demultiplexer; the first The wavelength filter is respectively connected with the wavelength multiplexer and the first photodetector; the first photodetector is connected with the first transimpedance amplifier; the first transimpedance amplifier is connected with the first limiting amplifier; the second laser driver is connected with the first transimpedance amplifier The two lasers are connected; the second laser is connected with the multiplexer and the splitter; the second wavelength filter is respectively connected with the multiplexer and the second photodetector; the second photodetector is connected with the second transimpedance amplifier; the second The transimpedance amplifier is connected to the second limiting amplifier; the ONT optical module control and management module is used to control the first receiving channel to obtain the first downlink optical signal according to the first mode control signal, and convert the first downlink optical signal into the first downlink optical signal. Downlink electrical signal.

The ONT optical module control and management module is configured to control the first receiving channel and the first sending channel to work in the first mode according to the first mode control signal.

The ONT optical module control and management module is further configured to control the second receiving channel and the second sending channel to work in the second mode according to the second mode control signal.

The first mode control signal is any one of the P mode control signals, the second mode control signal is any one of the P mode control signals, the first mode control signal and the second mode control signal The signals are different, and the first mode corresponding to the first mode control signal is different from the second mode corresponding to the second mode control signal.

In the second possible design, when N=2 and M=2, the multimode ONT includes two ONT protocol processing modules and two ONT optical modules. The ONT also includes multiplexers and demultiplexers.

The ONT control and management module is respectively connected with the service processing module, the first ONT protocol processing module, the first ONT optical module, the second ONT protocol processing module and the second ONT optical module; the service processing module is respectively connected with the first ONT protocol processing module Connect with the second ONT protocol processing module; the first ONT protocol processing module is connected with the first ONT optical module; the second ONT protocol processing module is connected with the second ONT optical module; the multiplexer and the demultiplexer are respectively connected with the first ONT optical module and The second ONT optical module is connected.

The ONT control management module is configured to control the first ONT protocol processing module and the first ONT optical module to work in the first mode according to the first mode control signal.

The ONT control and management module is further configured to control the second ONT protocol processing module and the second ONT optical module to work in the second mode according to the second mode control signal.

For the downlink, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the wavelength band of the first mode in the downlink optical signal to the first ONT optical module; the first ONT optical module is used to control the first mode according to the first mode. The signal obtains the first downlink optical signal from the downlink optical signal obtained by the multiplexer and demultiplexer, converts the first downlink optical signal into a first downlink electrical signal, and transmits the first downlink electrical signal to the first ONT a protocol processing module, where the downlink rate of the first downlink optical signal is the downlink rate corresponding to the first mode, and the downlink wavelength of the first downlink optical signal is the downlink wavelength corresponding to the first mode; the first ONT protocol processing module is used for according to the The first mode protocol acquires service information from the first downlink electrical signal, and transmits the service information to the service processing module.

The multiplexer and demultiplexer is also used to transmit the downstream optical signal within the wavelength band of the second mode in the downstream optical signal to the second ONT optical module; the second ONT optical module is used to control the signal from the multiplexer according to the second mode. The second downlink optical signal is obtained from the downlink optical signal obtained by the demultiplexer, and the second downlink optical signal is converted into a second downlink electrical signal, and the second downlink electrical signal is transmitted to the second ONT protocol processing module. The downlink rate of the signal is the downlink rate corresponding to the second mode, and the downlink wavelength of the second downlink optical signal is the downlink wavelength corresponding to the second mode; the second ONT protocol processing module is used to convert the second downlink electrical signal from the second downlink electrical signal according to the second mode protocol. Obtain business information from the server, and transmit the business information to the business processing module.

For the uplink, the first ONT protocol processing module is further configured to convert the service information obtained from the service processing module into an uplink electrical signal corresponding to the first mode protocol according to the first mode protocol, and convert the uplink signal corresponding to the first mode protocol The electrical signal is transmitted to the first ONT optical module; the first ONT optical module is also used to convert the uplink electrical signal corresponding to the first mode protocol into the first uplink optical signal according to the first mode control signal, and pass the wavelength combiner and demultiplexer. The first uplink optical signal is coupled into the ODN, the uplink rate of the first uplink optical signal is the uplink rate corresponding to the first mode, and the uplink wavelength of the first uplink optical signal is the uplink wavelength corresponding to the first mode.

The second ONT protocol processing module is further configured to convert the service information obtained from the service processing module into the uplink electrical signal corresponding to the second mode protocol according to the second mode protocol, and transmit the uplink electrical signal corresponding to the second mode protocol to the second mode protocol. Two ONT optical modules; the second ONT optical module is also used to convert the uplink electrical signal corresponding to the second mode protocol into the second uplink optical signal according to the second mode control signal, and convert the second uplink optical signal through the wavelength multiplexer and demultiplexer. The signal is coupled into the ODN, the uplink rate of the second uplink optical signal is the uplink rate corresponding to the second mode, and the uplink wavelength of the second uplink optical signal is the uplink wavelength corresponding to the second mode.

In a third possible design, when N=1 and M=2, the multimode ONT includes one ONT protocol processing module and two ONT optical modules. The ONT also includes a multiplexer and an electronic switch, and the ONT protocol processing module is a multi-mode ONT protocol processing module. The ONT control and management module is respectively connected with the service processing module, the multi-mode ONT protocol processing module, the electronic switch, the first ONT optical module and the second ONT optical module; the service processing module is connected with the multi-mode ONT protocol processing module; the multi-mode ONT The protocol processing module is connected with the electronic switch; the electronic switch is respectively connected with the first ONT optical module and the second ONT optical module; the wavelength multiplexer is connected with the first ONT optical module and the second ONT optical module respectively.

The ONT control management module is configured to control the multi-mode ONT protocol processing module and the first ONT optical module to work in the first mode according to the first mode control signal.

The ONT control and management module is further configured to control the multi-mode ONT protocol processing module and the second ONT optical module to work in the second mode according to the second mode control signal.

For the downlink, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the wavelength band of the first mode in the downlink optical signal to the first ONT optical module; the first ONT optical module is used to control the first mode according to the first mode. The signal obtains the first downlink optical signal from the downlink optical signal obtained by the multiplexer and demultiplexer, converts the first downlink optical signal into the first downlink electrical signal, and transmits the first downlink electrical signal to the multi-mode ONT protocol a processing module; an electronic switch for gating the path with the first ONT optical module according to the first mode control signal, and transmitting the first downlink electrical signal to the multi-mode ONT protocol processing module; the multi-mode ONT protocol processing module for according to the The first mode protocol acquires service information from the first downlink electrical signal, and transmits the service information to the service processing module.

The wavelength multiplexer and demultiplexer is used to transmit the downstream optical signal within the wavelength band of the second mode in the downstream optical signal to the second ONT optical module; the second ONT optical module is used to control the signal from the multiplexer and demultiplexer according to the second mode. The second downlink optical signal is obtained from the downlink optical signal acquired by the wave filter, and the second downlink optical signal is converted into a second downlink electrical signal, and the second downlink electrical signal is transmitted to the multi-mode ONT protocol processing module; an electronic switch for according to The second mode control signal strobes the path with the second ONT optical module, and transmits the second downlink electrical signal to the multi-mode ONT protocol processing module; Obtain business information from the signal, and transmit the business information to the business processing module.

For the uplink, the multi-mode ONT protocol processing module is further configured to convert the service information obtained from the service processing module into the uplink electrical signal corresponding to the first mode protocol according to the first mode protocol, and convert the uplink signal corresponding to the first mode protocol The electrical signal is transmitted to the first ONT optical module; the electronic switch is used for gating the path with the first ONT optical module according to the first mode control signal, and transmits the uplink electrical signal corresponding to the first mode protocol to the first ONT optical module; The first ONT optical module is further configured to convert the uplink electrical signal corresponding to the first mode protocol into the first uplink optical signal according to the first mode control signal, and couple the first uplink optical signal into the ODN through the wavelength multiplexer and demultiplexer.

The multi-mode ONT protocol processing module is also used to convert the service information obtained from the service processing module into the uplink electrical signal corresponding to the second mode protocol according to the second mode protocol, and transmit the uplink electrical signal corresponding to the second mode protocol to the second mode protocol. Two ONT optical modules; an electronic switch for gating the path with the second ONT optical module according to the second mode control signal, and transmitting the uplink electrical signal corresponding to the second mode protocol to the second ONT optical module; the second ONT optical module , and is also used to convert the uplink electrical signal corresponding to the second mode protocol into the second uplink optical signal according to the second mode control signal, and couple the second uplink optical signal into the ODN through the wavelength multiplexer and demultiplexer.

In a second aspect, an embodiment of the present application provides a transceiving adjustable multi-mode ONT optical module, including: R channels of reception channels and T channels of transmission channels, where R is an integer greater than or equal to 1, and T is an integer greater than or equal to 1 . The receiving channel is used to obtain the downlink optical signal of the corresponding mode according to the mode control signal, convert the downlink optical signal of the corresponding mode into the downlink electrical signal of the corresponding mode, and transmit the downlink electrical signal of the corresponding mode to the ONT protocol processing module; the sending channel is used to convert the uplink electrical signal of the corresponding mode protocol obtained from the ONT protocol processing module into the uplink optical signal of the corresponding mode according to the mode control signal, and send the uplink optical signal of the corresponding mode.

The transceiver-tunable multi-mode ONT optical module provided by the embodiment of the present application controls the transceiver-tunable multi-mode ONT optical module to work in P modes through P mode control signals, and the multi-mode ONT can work according to the mode control signal without manual operation. In any of the P modes, in the process of multi-mode ONT upgrade, the multi-mode ONT can independently upgrade from one mode to another, effectively reducing the complexity of multi-mode ONT upgrade operations.

In a possible design, R=1 and T=1 in the above-mentioned way 1, or R=2 and T=2 in the above-mentioned way 2.

In a third aspect, an embodiment of the present application provides a communication device, comprising: at least one processor, a memory, a bus, and a communication interface, wherein the memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the The function of the multi-mode ONT described in the first aspect above.

In a fourth aspect, embodiments of the present application provide a passive optical network PON system, including: the multimode ONT described in the first aspect or the communication device described in the second aspect, and an ODN and an OLT.

In a fifth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory for implementing the function of the multi-mode ONT described in the first aspect or the communication device described in the second aspect. Function.

In addition, for the technical effects brought by the design methods in any of the above aspects, reference may be made to the technical effects brought by different design methods in the first aspect, and details are not described here.

In the embodiments of the present application, names such as the multimode ONT and the communication device do not limit the devices themselves. In actual implementation, these devices may appear with other names. As long as the functions of each device are similar to the embodiments of the present application, they fall within the scope of the claims of the present application and their equivalents.

Description of drawings

Fig. 1 is an example diagram of a system architecture of a PON provided by the prior art;

Fig. 2 is an example diagram of a system architecture of an upgraded PON provided by the prior art;

Fig. 3 is a structural example diagram of a multi-mode ONT provided by an embodiment of the present application;

FIG. 4 is a structural example diagram of another multi-mode ONT provided by an embodiment of the present application;

FIG. 5 is a structural example diagram of a transceiving adjustable multi-mode ONT optical module provided by an embodiment of the present application;

FIG. 6 is a structural example diagram of another transceiving adjustable multi-mode ONT optical module provided by an embodiment of the present application;

FIG. 7 is a structural example diagram of another transceiving adjustable multi-mode ONT optical module provided by an embodiment of the present application;

FIG. 8 is a structural example diagram of another multi-mode ONT provided by an embodiment of the present application;

FIG. 9 is a structural example diagram of still another multi-mode ONT provided by an embodiment of the present application;

10 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

Detailed ways

The terms "first", "second" and "third" in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to limit a specific order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

In order to describe the following embodiments clearly and concisely, a brief introduction of the related technology is given first:

PON is an optical access network that provides users with high bandwidth and full services. Among them, the OLT is the core component of the PON, providing the optical fiber interface for the user-oriented passive optical network. One end of the OLT is upwardly connected to the upper-layer network to complete the upstream access of the PON. The upper layer network may be an internet protocol (IP) backbone network or a public switched telephone network (PSTN). The other end of the OLT is connected down to the user terminal equipment through the ODN to complete the downlink transmission of the PON, and realize functions such as control, management and ranging of the user terminal equipment. The customer premises equipment can be an ONU or an ONT.

One end of the client device is upwardly connected to the OLT through the ODN, and the other end of the client device is downwardly connected to other terminal devices, such as a computer, a fixed telephone, and the like. ONU cooperates with OLT to realize Ethernet Layer 2 and Layer 3 functions and provide users with voice, data and multimedia services. For example, the ONU can choose to receive the data sent by the OLT; respond to the management commands sent by the OLT and make corresponding adjustments; buffer the user's Ethernet data and send it to the uplink in the sending window allocated by the OLT; other users management functions.

It should be noted that the ONT may belong to a part of the ONU. The difference between an ONT and an ONU is that the ONT can be directly located at the user end, while the ONU is an optical network unit, and there may be other networks, such as Ethernet, between the ONT and the user. The ONU can be connected to various types of digital subscriber lines (digital subscriber lines, DSL) or gateway devices of Ethernet access ports, and the gateway devices are then connected to network terminals. For the convenience of description, in the embodiments of this application, the user terminal equipment is collectively referred to as an ONT.

The mode of the PON may also be referred to as the working mode of the PON. In practical applications, the mode control signal can be used to control each device included in the PON to work in a corresponding mode. It can be understood that the mode includes an upstream rate, a downstream rate, an upstream wavelength and a downstream wavelength. The so-called uplink refers to from the ONT to the OLT, and the uplink can also be called an uplink or an uplink optical path. The so-called downlink refers to going from the OLT to the ONT, and the downlink can also be called a downlink or a downlink optical path.

Exemplarily, the GPON mode is a mode of PON. GPON is a PON in which each device included in the PON works in the GPON mode. The downlink rate of the GPON mode can be 2.488 gigabits (Gbit)/second (second, s), the uplink rate of the GPON mode can be 1.244Gbit/s; the downlink wavelength of the GPON mode can be 1480 ~ 1500 nanometers (nanometre, nm), The upstream wavelength of the GPON mode can be 1290-1330nm or 1300-1320nm. Correspondingly, the uplink and downlink rates of the optical signals transmitted by the OLT included in the GPON are the uplink and downlink rates corresponding to the GPON mode. The uplink and downlink wavelengths of the optical signals transmitted by the OLT included in the GPON are the uplink and downlink wavelengths corresponding to the GPON mode. The uplink and downlink rates of the optical signals transmitted by the ONT included in the GPON are the uplink and downlink rates corresponding to the GPON mode. The uplink and downlink wavelengths of the optical signals transmitted by the ONT included in the GPON are the uplink and downlink wavelengths corresponding to the GPON mode.

Alternatively, the XG-PON mode may be another mode of PON. XG-PON is a PON in which each device included in the PON works in the XG-PON mode. The downstream rate of XG-PON mode can be 9.953Gbit/s, and the upstream rate of XG-PON mode can be 2.488GGbit/s; the downstream wavelength of XG-PON mode can be 1575~1580nm, and the upstream wavelength of XG-PON mode can be 1260～1280nm. Correspondingly, the uplink and downlink rates of the optical signals transmitted by the OLT included in the XG-PON are the uplink and downlink rates corresponding to the XG-PON mode. The upstream and downstream wavelengths of the optical signals transmitted by the OLT included in the XG-PON are the upstream and downstream wavelengths corresponding to the XG-PON mode. The uplink and downlink rates of the optical signals transmitted by the ONT included in the XG-PON are the uplink and downlink rates corresponding to the XG-PON mode. The uplink and downlink wavelengths of the optical signals transmitted by the ONT included in the XG-PON are the uplink and downlink wavelengths corresponding to the XG-PON mode.

It should be noted that the value of the downlink rate and the value of the uplink rate in the above-mentioned GPON mode and XG-PON mode may also be other values specified in the standard, and the embodiments of the present application are only used for illustration here, and this will not be discussed any further. limited.

With the development of various services, the user's demand for bandwidth is increasing. Therefore, the existing PON system needs to be upgraded. For example, upgrading from a GPON system to an XG-PON system. FIG. 2 is an example diagram of a system architecture of an upgraded PON provided by the prior art. On the OLT side, as shown in Figure 2, an OLT in XG-PON mode is added, and the optical signals of the OLT in GPON mode and the OLT in XG-PON mode are multiplexed into the same ODN through the multiplexer and demultiplexer to realize OLT upgrade . On the ONT side, upgrade on demand. Users who need to upgrade can be replaced with ONTs in XG-PON mode, and users who do not need to upgrade can continue to use ONTs in G-PON mode; or, replace single-mode ONTs with multi-mode ONTs. The multi-mode ONT can work in different modes by plugging and unplugging the ONT optical modules of different modes in the multi-mode ONT and cooperating with the multi-mode ONT protocol processing module in the multi-mode ONT.

However, the above-mentioned upgrade methods all realize the upgrade of the PON system through manual operation, and the upgrade operation is relatively complicated. Moreover, since the ONT is a user-side device and may be in different locations, the upgrade workload is large. Even if the user uses a multi-mode ONT, the staff needs to come to the door or send the optical module to the user, and the user still needs to complete the replacement of the ONT optical module by himself.

In order to solve the problem of complicated ONT upgrade operations, the embodiments of the present application provide a multi-mode ONT. The multi-mode ONT includes an ONT control and management module, N ONT protocol processing modules and M ONT optical modules. The ONT control and management module is based on P The mode control signal controls the N ONT protocol processing modules and the M ONT optical modules to work in P modes. Therefore, without manual operation, the multi-mode ONT can work in any of the P modes according to the mode control signal. This enables the multi-mode ONT to independently upgrade from one mode to another during the multi-mode ONT upgrade process, which effectively reduces the complexity of the multi-mode ONT upgrade operation.

The implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

FIG. 3 is a schematic structural diagram of a multi-mode ONT according to an embodiment of the present application. As shown in Figure 3, a multimode ONT includes an ONT control and management module, a service processing module, N ONT protocol processing modules and M ONT optical modules, where N is an integer greater than or equal to 1, and M is an integer greater than or equal to 1.

The ONT control and management module is respectively connected with the service processing module, N ONT protocol processing modules and M ONT optical modules; the service processing module is connected with N ONT protocol processing modules; one ONT protocol processing module is connected with at least one ONT optical module, An ONT optical module is connected to at least one ONT protocol processing module.

The ONT control and management module is used to control the N ONT protocol processing modules and the M ONT optical modules to work in P modes according to the P mode control signals, where P is an integer greater than or equal to 2.

Understandably, the ONT control management module sends a mode control signal to an ONT protocol processing module and an ONT optical module connected with the ONT protocol processing module, and controls an ONT protocol processing module and an ONT protocol processing module connected with the ONT protocol processing module. The ONT optical module works in the corresponding mode according to the mode control signal.

It should be noted that if an ONT protocol processing module can work in different modes, the ONT protocol processing module is a multi-mode ONT protocol processing module. In this case, the ONT protocol processing module can be connected to multiple corresponding modes. ONT optical module or a transceiver adjustable multi-mode ONT optical module. If an ONT protocol processing module works in one mode, the ONT protocol processing module can be connected to an ONT optical module of the corresponding mode. In the same way, if an ONT optical module can work in different modes, the ONT optical module is a transceiver-adjustable multi-mode ONT optical module. In this case, the ONT optical module can be connected to multiple ONT protocol processing of corresponding modes. module or a multimode ONT protocol processing module. If an ONT optical module works in one mode, the ONT optical module can be connected to the ONT protocol processing module of the corresponding mode.

The specific connection mode of the N ONT protocol processing modules and the M ONT optical modules can be jointly determined according to factors such as the working modes of the ONT protocol processing modules and the ONT optical modules, and the number of modules. For the specific connection manner of the N ONT protocol processing modules and the M ONT optical modules, reference may be made to the description of the following embodiments.

For the downlink, the ONT optical module is used to obtain the downlink optical signal of the corresponding mode according to the mode control signal, convert the downlink optical signal of the corresponding mode into the downlink electrical signal of the corresponding mode, and transmit the downlink electrical signal of the corresponding mode to the ONT Protocol processing module.

The ONT protocol processing module is used for acquiring service information from the downlink electrical signal of the corresponding mode according to the mode protocol corresponding to the mode control signal, and transmitting the service information to the service processing module.

The business processing module is used to process business information. Different business types are handled differently. For example, the service information can be user information or system information. The processing method can be to transmit the service information to other terminal devices connected to it.

For the uplink, the service processing module is configured to acquire service information, and transmit the service information to the ONT protocol processing module of the corresponding mode among the N ONT protocol processing modules according to the mode control signal.

The ONT protocol processing module is further configured to convert the service information obtained from the service processing module into an uplink electrical signal corresponding to the mode protocol according to the mode protocol corresponding to the mode control signal, and transmit the uplink electrical signal corresponding to the mode protocol to the ONT optical module.

The ONT optical module is also used to convert the uplink electrical signal of the corresponding mode protocol into the uplink optical signal of the corresponding mode according to the mode control signal, and send the uplink optical signal of the corresponding mode, that is, transmit the uplink optical signal to the OLT through the ODN.

It should be noted that the above-mentioned ONT optical module realizes the specific implementation manner of photoelectric conversion and electro-optical conversion, and the ONT protocol processing module obtains service information from the downlink electrical signal of the corresponding mode and converts the service information into the uplink electrical signal of the corresponding mode protocol. The specific implementation manner and the specific implementation manner of processing the service information by the service processing module may refer to the prior art, and details are not described herein again in this embodiment of the present application.

In addition, the multi-mode ONT may also include a clock module and a power module. The clock module is used to synchronize the time of other modules included in the multimode ONT. The power module provides power for the multi-mode ONT and enables the multi-mode ONT to receive or transmit optical signals.

The multimode ONT provided by the embodiment of the present application controls N ONT protocol processing modules and M ONT optical modules to work in P modes through P mode control signals, so that the multimode ONT can control the signals according to the mode without manual operation. It works in any of the P modes, so that in the process of multi-mode ONT upgrade, the multi-mode ONT can independently upgrade from one mode to another mode, effectively reducing the complexity of multi-mode ONT upgrade operations. .

The following describes the connection mode of the N ONT protocol processing modules and the M ONT optical modules by using the operating modes of the ONT protocol processing module and the ONT optical module included in the multi-mode ONT and the number of modules.

In a first implementation manner, when N=1 and M=1, the multimode ONT includes an ONT protocol processing module and an ONT optical module. FIG. 4 is a schematic structural diagram of another multi-mode ONT provided by an embodiment of the present application. The ONT protocol processing module may be a multi-mode ONT protocol processing module, and the ONT optical module may be a transceiver-tunable multi-mode ONT optical module, wherein the multi-mode ONT protocol processing module is connected to the transceiver-tunable multi-mode ONT optical module.

It should be noted that the transceiver adjustable multi-mode ONT optical module may be an independent pluggable module, or may be fixed on the multi-mode ONT. The multimode ONT may be a system on chip (system on chip, SOC).

For the downlink, transmit and receive adjustable multi-mode ONT optical modules, which are used to obtain the i-th downlink optical signal from the received downlink optical signal according to the i-th mode control signal, and convert the i-th downlink optical signal into the i-th downlink electrical signal. signal, and transmit the i-th downlink electrical signal to the multi-mode ONT protocol processing module.

For example, acquiring the i-th downlink optical signal may be acquiring a downlink optical signal of a corresponding wavelength according to a specific downlink wavelength within the wavelength range of the i-th mode. The downstream wavelength of the i-th downstream optical signal may be a specific downstream wavelength within the band range of the i-th mode. The downlink rate of the i-th downlink optical signal may be a specific downlink rate within the band range of the i-th mode. In addition, an electrical signal refers to a voltage or current that changes over time. The i-th downlink electrical signal is a downlink electrical signal corresponding to the i-th mode.

The multi-mode ONT protocol processing module is used to analyze the i-th downlink electrical signal according to the i-th mode protocol, obtain service information from the i-th downlink electrical signal, and transmit the service information to the service processing module.

For the uplink, the multi-mode ONT protocol processing module is also used to encapsulate the service information obtained from the service processing module according to the i-th mode protocol, convert the service information into an uplink electrical signal corresponding to the i-th mode protocol, and convert the service information into the uplink electrical signal corresponding to the i-th mode protocol. The uplink electrical signal corresponding to the i-th mode protocol is transmitted to the transceiver adjustable multi-mode ONT optical module. The uplink electrical signal corresponding to the i-th mode protocol is the result of encapsulating the service information by the ONT protocol processing module according to the i-th mode protocol.

The transceiver adjustable multi-mode ONT optical module is also used to convert the uplink electrical signal corresponding to the i-th mode protocol into the i-th uplink electrical signal according to the i-th mode control signal, and then convert the i-th uplink electrical signal into the i-th uplink optical signal , and send the i-th uplink optical signal. The i-th uplink electrical signal is an uplink electrical signal corresponding to the i-th mode. The uplink rate of the i-th uplink optical signal is the uplink rate corresponding to the i-th mode, and the uplink wavelength of the i-th uplink optical signal is the uplink wavelength corresponding to the i-th mode.

It should be noted that i is an integer, i is from 1 to P, the i-th mode control signal is any mode control signal among the P mode control signals, and the i-th mode control signal is used to control the multi-mode ONT protocol processing module and the transceiver. The tunable multimode ONT optical module works in the i-th mode. For example, if the i-th mode control signal is a GPON mode control signal, the GPON mode control signal is used to control the multimode ONT protocol processing module and the transceiver adjustable multimode ONT optical module to work in the GPON mode. If the i-th mode control signal is the XG-PON mode control signal, the XG-PON mode control signal is used to control the multimode ONT protocol processing module and the transceiver adjustable multimode ONT optical module to work in the XG-PON mode.

The multi-mode ONT provided in the embodiment of the present application controls the multi-mode ONT protocol processing module and the transceiver-adjustable multi-mode ONT optical module to operate in P modes through P mode control signals. Therefore, without manual operation, the multi-mode ONT can The mode control signal works in any of the P modes, so that in the process of multi-mode ONT upgrade, the multi-mode ONT can independently upgrade from one mode to another mode, effectively reducing the multi-mode ONT upgrade operation. complexity.

In order for the multi-mode ONT to work in P modes according to the control of the P mode control signals, the adjustable multi-mode ONT optical module for transceiving may include R receiving channels and T transmitting channels, where R is an integer greater than or equal to 1 , T is an integer greater than or equal to 1. Specifically, the following implementations may be included.

Manner 1, when R=1 and T=1, the transceiver adjustable multi-mode ONT optical module may include one receiving channel and one transmitting channel. FIG. 5 is a structural example diagram of a transceiving adjustable multi-mode ONT optical module according to an embodiment of the present application. The receiving channel includes a wavelength tunable filter, a multi-rate photodetector, a multi-rate transimpedance amplifier and a multi-rate limiting amplifier; the transmitting channel includes a multi-rate laser driver and a multi-rate tunable wavelength laser. The transceiver adjustable multi-mode ONT optical module also includes the ONT optical module control and management module and the multiplexer and demultiplexer.

It should be noted that the optical paths included in the multiplexer and demultiplexer can be set according to the sum of the number of receiving channels and transmitting channels included in the transceiver adjustable multi-mode ONT optical module. One optical path corresponds to one optical signal band, and different optical paths correspond to different optical paths. Optical signal band, guide the optical signal into different channels according to different optical signal bands. For an ONT, the receiving channel refers to the "downstream optical path" from the OLT to the ONT, and the transmitting channel refers to the "upstream optical path" from the ONT to the OLT. For the downlink optical path, the multiplexer and demultiplexer is used to guide the downlink optical signal from the external optical port of the transceiver tunable multi-mode ONT optical module into the receiving channel according to the optical signal band corresponding to the downlink optical path, that is, into the wavelength tunable filter. For the upstream optical path, the multiplexer and demultiplexer is also used to guide the upstream optical signal into the external optical port of the transceiver adjustable multi-mode ONT optical module, couple it into the ODN, and transmit the upstream optical signal to the OLT through the ODN. In addition, the optical path included in the multiplexer and demultiplexer can be a physical optical path realized by an optical fiber, or a virtual optical path realized by other media. Wireless transmission, the medium can be air.

Among them, the ONT optical module control and management module is respectively connected with multi-rate laser driver, multi-rate tunable wavelength laser, wavelength tunable filter, multi-rate photodetector, multi-rate transimpedance amplifier and multi-rate limiting amplifier; multi-rate laser The driver is connected with the multi-rate tunable wavelength laser; the multi-rate tunable wavelength laser is connected with the multiplexer and demultiplexer; the wavelength tunable filter is respectively connected with the multi-rate photodetector and the multiplexer and demultiplexer; The rate transimpedance amplifier is connected; the multirate transimpedance amplifier is connected to the multirate limiting amplifier.

For the downlink, the ONT optical module control and management module is used to transmit the i-th mode control signal to the receiving channel, and control the receiving channel to work in the i-th mode.

Specifically, the wavelength tunable filter is used to obtain the i-th downlink optical signal from the downlink optical signal obtained by the multiplexer and demultiplexer according to the i-th mode control signal, and transmit the i-th downlink optical signal to the multi-rate photodetector . It should be noted that the tunable wavelength filter mainly filters downlink optical signals according to wavelengths, and downlink optical signals corresponding to one downlink wavelength corresponding to the i-th mode pass through, and downlink optical signals of other wavelengths are filtered out. However, in this embodiment of the present application, the downlink rate of the i-th downlink optical signal is not limited, and may be any downlink rate corresponding to the i-th mode.

The multi-rate photodetector is used to convert the i-th downlink optical signal into the i-th downlink electrical signal according to the i-th mode control signal, and transmit the i-th downlink electrical signal to the multi-rate transimpedance amplifier.

The multi-rate transimpedance amplifier is used to amplify the i-th downlink electrical signal, and transmit the amplified i-th downlink electrical signal to the multi-rate limiting amplifier. For example, the amplification factor of the electrical signal can be controlled by adjusting the resistance of the transimpedance amplifier, and the amplification or reduction of the electrical signal can be reflected by the change of the amplitude of the electrical signal.

The multi-rate limiting amplifier is used to adjust the amplitude of the amplified i-th downlink electrical signal. For example, the amplitude of the amplified i-th downlink electrical signal received by the multi-rate limiting amplifier is not uniform, and after amplitude limiting and shaping, the amplified i-th downlink electrical signal of the same magnitude and amplitude is output.

For the uplink, the ONT optical module control and management module is also used to transmit the i-th mode control signal to the transmission channel, and control the transmission channel to work in the i-th mode.

The laser driver is an intermediate device for electrical-to-electrical signal conversion in order to meet the laser light-emitting conditions, for example, to change the amplitude of the electrical signal, or to change the current of the electrical signal. In this embodiment of the present application, the laser driver may be a multi-rate laser driver, and the laser may be a multi-rate tunable wavelength laser.

Specifically, the multi-rate laser driver is used to convert the uplink electrical signal corresponding to the i-th mode protocol received from the multi-mode ONT protocol processing module into the i-th uplink signal that drives the multi-rate tunable wavelength laser to emit light according to the i-th mode control signal electrical signal, and transmit the i-th upward electrical signal to the multi-rate tunable wavelength laser.

The multi-rate tunable wavelength laser is used to convert the i-th uplink electrical signal obtained from the multi-rate laser driver into the i-th uplink optical signal according to the i-th mode control signal, and transmit the i-th uplink optical signal to the multiplexer and demultiplexer .

The multiplexer and demultiplexer is used to couple the i-th upstream optical signal into the ODN, and transmit the i-th upstream optical signal to the OLT through the ODN.

It can be seen from the above method 1 that under the control of the ONT optical module control and management module, the multi-rate tunable wavelength laser can send uplink optical signals of different wavelengths to meet the requirements of different mode protocols. For example, in GPON mode, the multi-rate tunable wavelength laser emits an uplink optical signal with a wavelength of 1290-1330 nm; in XG-PON mode, the multi-rate tunable wavelength laser emits an upstream optical signal with a wavelength of 1260-1280 nm. Similarly, under the control of the ONT optical module control and management module, the wavelength tunable filter can selectively receive downlink optical signals of specific wavelengths. For example, in GPON mode, the tunable wavelength filter receives downlink optical signals with wavelengths from 1480 to 1500nm and filters out downlink optical signals of other wavelengths; in XG-PON mode, the wavelength tunable filter receives wavelengths from 1575 to 1580nm downlink optical signals of other wavelengths, and filter out downlink optical signals of other wavelengths. The other multi-rate devices included in the transceiver-adjustable multi-mode ONT optical module also work at the rates corresponding to different modes under the control of the ONT optical module control and management module.

Therefore, the transceiver adjustable multi-mode ONT optical module is controlled to work in P modes through P mode control signals, and the multi-mode ONT can work in any of the P modes according to the mode control signal without manual operation, so that the During the multi-mode ONT upgrade process, the multi-mode ONT independently upgrades from one mode to another, effectively reducing the complexity of the multi-mode ONT upgrade operation.

Mode 2, when R=2 and T=2, the transceiver-adjustable multi-mode ONT optical module may include two receiving channels and two transmitting channels. FIG. 6 is a structural example diagram of another transceiver-tunable multi-mode ONT optical module provided by an embodiment of the present application. The first receiving channel includes a first wavelength filter, a first photodetector, a first transimpedance amplifier and a first limiting amplifier; the first transmitting channel includes a first laser driver and a first laser. The second receiving channel includes a second wavelength filter, a second photodetector, a second transimpedance amplifier and a second limiting amplifier; the second transmitting channel includes a second laser driver and a second laser. The transceiver adjustable multi-mode ONT optical module also includes the ONT optical module control and management module and the multiplexer and demultiplexer. The multiplexer and demultiplexer may include 4 optical paths, and the 4 optical paths may be virtual optical paths or physical optical paths. For details, reference may be made to the description about the multiplexer and demultiplexer in the first mode, and details are not described herein again in this embodiment of the present application. In addition, for the multiplexer and demultiplexer described in any of the following embodiments, reference may also be made to the description about the multiplexer and demultiplexer in the first mode, and details are not described herein again in this embodiment of the present application.

The ONT optical module control and management module is respectively connected with the first laser driver, the first laser, the first wavelength filter, the first photodetector, the first transimpedance amplifier, the first limiting amplifier, the second laser driver, the second The laser, the second wavelength filter, the second photodetector, the second transimpedance amplifier and the second limiting amplifier are connected; the first laser driver is connected with the first laser; the first laser is connected with the wavelength combiner and demultiplexer; the first The wavelength filter is respectively connected with the wavelength multiplexer and the first photodetector; the first photodetector is connected with the first transimpedance amplifier; the first transimpedance amplifier is connected with the first limiting amplifier; the second laser driver is connected with the first transimpedance amplifier The two lasers are connected; the second laser is connected with the multiplexer and the splitter; the second wavelength filter is respectively connected with the multiplexer and the second photodetector; the second photodetector is connected with the second transimpedance amplifier; the second The transimpedance amplifier is connected to the second limiting amplifier.

The ONT optical module control and management module is used to receive the first mode control signal transmitted by the ONT control and management module, transmit the first mode control signal to the first reception channel and the first transmission channel, and control the operation of the first reception channel and the first transmission channel in the first mode.

The ONT optical module control and management module is further configured to receive the second mode control signal transmitted by the ONT control and management module, transmit the second mode control signal to the second receiving channel and the second transmitting channel, and control the second receiving channel and the second transmitting channel work in the second mode.

The first mode control signal is any one of the P mode control signals. For example, if the first mode control signal is a GPON mode control signal, the GPON mode control signal is used to control the first receiving channel and the first transmitting channel to work in the GPON mode. If the first mode control signal is an XG-PON mode control signal, the XG-PON mode control signal is used to control the first receiving channel and the first transmitting channel to work in the XG-PON mode.

The second mode control signal is any one of the P mode control signals. For example, if the second mode control signal is a GPON mode control signal, the GPON mode control signal is used to control the second receiving channel and the second transmitting channel to work in the GPON mode. If the second mode control signal is an XG-PON mode control signal, the XG-PON mode control signal is used to control the second receiving channel and the second transmitting channel to work in the XG-PON mode.

The first mode corresponding to the first mode control signal is different from the second mode corresponding to the second mode control signal. For example, if the first mode control signal is a GPON mode control signal, the second mode control signal may be an XG-PON mode control signal; or, if the first mode control signal is an XG-PON mode control signal, the second mode control signal may be Control signal for GPON mode.

For the downlink, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the wavelength band of the first mode in the downlink optical signal to the receiving channel.

The first wavelength filter is used for acquiring the first downlink optical signal from the downlink optical signal acquired by the wavelength combiner and demultiplexer according to the first mode control signal, and transmitting the first downlink optical signal to the multi-rate photodetector.

The first photodetector is used to convert the first downlink optical signal into the first downlink electrical signal according to the first mode control signal, and transmit the first downlink electrical signal to the multi-rate transimpedance amplifier. The first downlink electrical signal is a downlink electrical signal corresponding to the first mode.

The first transimpedance amplifier is used to amplify the first downlink electrical signal, and transmit the amplified first downlink electrical signal to the first limiting amplifier. For example, increase the impedance of the first downlink electrical signal.

The first limiting amplifier is used to adjust the amplitude of the amplified first downlink electrical signal.

When the multi-mode ONT protocol processing module and the transceiver-adjustable multi-mode ONT optical module work in the first mode, the downlink rate of the first downlink optical signal is the downlink rate corresponding to the first mode. The downlink wavelength of the first downlink optical signal is the downlink wavelength corresponding to the first mode.

The wavelength combiner and demultiplexer is also used for transmitting the downlink optical signal within the wavelength band of the second mode in the downlink optical signal to the receiving channel.

The second wavelength filter is used for acquiring the second downlink optical signal from the downlink optical signal acquired by the wavelength combiner and demultiplexer according to the second mode control signal, and transmitting the second downlink optical signal to the second photodetector.

The second photodetector is used to convert the second downlink optical signal into a second downlink electrical signal according to the second mode control signal, and transmit the second downlink electrical signal to the second transimpedance amplifier.

The second transimpedance amplifier is used for amplifying the second downlink electrical signal, and transmitting the amplified second downlink electrical signal to the second limiting amplifier.

The second limiting amplifier is used for adjusting the amplitude of the amplified second downlink electrical signal.

When the multi-mode ONT protocol processing module and the transceiver-adjustable multi-mode ONT optical module work in the second mode, the downlink rate of the second downlink optical signal is the downlink rate corresponding to the second mode, and the downlink wavelength of the second downlink optical signal is the downstream wavelength corresponding to the second mode.

For the uplink, the first laser driver is configured to convert the uplink electrical signal corresponding to the first mode protocol received from the multi-mode ONT protocol processing module to the first uplink electrical signal that drives the first laser to emit light according to the first mode control signal. signal, and transmit the first uplink electrical signal to the first laser. The first uplink electrical signal is an uplink electrical signal corresponding to the first mode.

The first laser is configured to convert the first uplink electrical signal obtained from the first laser driver into a first uplink optical signal according to the first mode control signal, and transmit the first uplink optical signal to the wavelength combiner and demultiplexer.

The wavelength combiner and demultiplexer is also used for coupling the first upstream optical signal into the ODN, and transmitting the first upstream optical signal to the OLT through the ODN.

When the multi-mode ONT protocol processing module and the transceiver-adjustable multi-mode ONT optical module work in the first mode, the uplink rate of the first uplink optical signal is the uplink rate corresponding to the first mode, and the uplink wavelength of the first uplink optical signal is the upstream wavelength corresponding to the first mode.

The second laser driver is configured to convert the uplink electrical signal corresponding to the second mode protocol received from the multi-mode ONT protocol processing module into the second uplink electrical signal for driving the second laser to emit light according to the second mode control signal, and convert the first Two upward electrical signals are transmitted to the second laser. The second upward electrical signal is an upward electrical signal corresponding to the second mode.

The second laser is configured to convert the second upstream electrical signal obtained from the second laser driver into a second upstream optical signal according to the second mode control signal, and transmit the second upstream optical signal to the wavelength combiner and demultiplexer.

The wavelength combiner and demultiplexer is also used to couple the second upstream optical signal into the ODN, and transmit the second upstream optical signal to the OLT through the ODN.

When the multi-mode ONT protocol processing module and the transceiver-adjustable multi-mode ONT optical module work in the second mode, the uplink rate of the second uplink optical signal is the uplink rate corresponding to the second mode, and the uplink wavelength of the second uplink optical signal is the upstream wavelength corresponding to the second mode.

It can be seen from the above method 2 that the transceiver adjustable multi-mode ONT optical module is controlled to work in two modes by two mode control signals, so that the multi-mode ONT can work in any of the two modes according to the mode control signal without manual operation. A mode that enables the multi-mode ONT to independently upgrade from one mode to another during the multi-mode ONT upgrade process, effectively reducing the complexity of the multi-mode ONT upgrade operation.

Mode 3, when R=2 and T=1, the transceiver adjustable multi-mode ONT optical module may include two receiving channels and one transmitting channel. FIG. 7 is a structural example diagram of another transceiving adjustable multi-mode ONT optical module according to an embodiment of the present application. The first receiving channel includes a first wavelength filter, a first photodetector, a first transimpedance amplifier and a first limiting amplifier; the second receiving channel includes a second wavelength filter, a second photodetector, a second transimpedance amplifier an amplifier and a second limiting amplifier; the transmit channel includes a multi-rate laser driver and a multi-rate tunable wavelength laser. The transceiver adjustable multi-mode ONT optical module also includes the ONT optical module control and management module and the multiplexer and demultiplexer. The multiplexer and demultiplexer may include three optical paths, and the three optical paths may be virtual optical paths or physical optical paths. For details, reference may be made to the description about the multiplexer and demultiplexer in the first mode, and details are not described herein again in this embodiment of the present application.

The ONT optical module control and management module is respectively connected with the multi-rate laser driver, the multi-rate tunable wavelength laser, the first wavelength filter, the first photodetector, the first transimpedance amplifier, the first limiting amplifier, and the second wavelength filter. The multi-rate laser driver is connected with the multi-rate tunable wavelength laser; the multi-rate tunable wavelength laser is connected with the multiplexer and demultiplexer; the first The wavelength filter is respectively connected with the wavelength multiplexer and the first photodetector; the first photodetector is connected with the first transimpedance amplifier; the first transimpedance amplifier is connected with the first limiting amplifier; the second wavelength filter is respectively The second photodetector is connected to the second transimpedance amplifier; the second transimpedance amplifier is connected to the second limiting amplifier.

The ONT optical module control and management module is used to receive the first mode control signal transmitted by the ONT control and management module, transmit the first mode control signal to the first receiving channel and the transmitting channel, and control the first receiving channel and the transmitting channel to work in the first mode .

The ONT optical module control and management module is further configured to receive the second mode control signal transmitted by the ONT control and management module, transmit the second mode control signal to the second receiving channel and the transmitting channel, and control the second receiving channel and the transmitting channel to work in the second channel. model.

For a specific detailed explanation, reference may be made to the description of the first receiving channel and the second receiving channel in FIG. 6 and the description of the sending channel in FIG. 5 , and details are not described herein again in this embodiment of the present application.

It can be seen from the above method 3 that the transceiver-adjustable multi-mode ONT optical module is controlled to work in two modes by two mode control signals. Therefore, without manual operation, the multi-mode ONT can work in any of the two modes according to the mode control signal. A mode that enables the multi-mode ONT to independently upgrade from one mode to another during the multi-mode ONT upgrade process, effectively reducing the complexity of the multi-mode ONT upgrade operation.

Optionally, in the above third mode, the multi-rate tunable wavelength laser may also be replaced by a multi-rate fixed wavelength laser. The multi-rate fixed wavelength laser can choose the upstream wavelength of 1290-1330nm in the GPON mode, or the upstream wavelength of 1260-1280nm in the XG-PON mode. In this case, the transceiver tunable multi-mode ONT optical module can only send one mode of uplink optical signals. Further, the two receiving channels can also be combined into one. For example, the receive channel includes a wide-spectrum filter or removal filter, a wide-spectrum multi-rate photodetector, a multi-rate transimpedance amplifier, and a multi-rate limiting amplifier. Since the transceiver-tunable multi-mode ONT uses wide spectrum reception, it cannot specifically distinguish the downstream wavelength of the GPON mode in the ODN line or the downstream wavelength of the XG-PON mode, so the transceiver-tunable multi-mode ONT can only work in the downstream single wavelength. Scenes.

Certainly, the number of receiving channels and the number of transmitting channels in the transceiving adjustable multi-mode ONT optical module may also be set to other combinations, for example, R=1, and T=2. The above-mentioned embodiments are only examples, and are not limited thereto.

The ONT optical module control and management module in the above-mentioned transceiver-adjustable multi-mode ONT optical module may also be connected to the ONT control and management module in the multi-mode ONT for receiving the mode control signal transmitted by the ONT control and management module. Of course, the ONT control management module can also directly transmit the mode control signal to the laser driver.

In the second implementation manner, when N=2 and M=2, the multimode ONT includes two ONT protocol processing modules and two ONT optical modules. FIG. 8 is a structural example diagram of another multi-mode ONT provided by an embodiment of the present application. Multimode ONTs also include multiplexers and demultiplexers.

The ONT control and management module is respectively connected with the service processing module, the first ONT protocol processing module, the first ONT optical module, the second ONT protocol processing module and the second ONT optical module; the service processing module is respectively connected with the first ONT protocol processing module Connect with the second ONT protocol processing module; the first ONT protocol processing module is connected with the first ONT optical module; the second ONT protocol processing module is connected with the second ONT optical module; the multiplexer and the demultiplexer are respectively connected with the first ONT optical module and The second ONT optical module is connected.

The ONT control management module is configured to control the first ONT protocol processing module and the first ONT optical module to work in the first mode according to the first mode control signal.

The ONT control and management module is further configured to control the second ONT protocol processing module and the second ONT optical module to work in the second mode according to the second mode control signal.

For a detailed explanation of the first mode control signal and the second mode control signal, reference may be made to the descriptions in the foregoing embodiments, and details are not described herein again in this embodiment of the present application.

For the downlink, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the wavelength band of the first mode in the downlink optical signal to the first ONT optical module.

The first ONT optical module is used to obtain the first downlink optical signal from the downlink optical signal in the downlink optical signal obtained by the multiplexer and demultiplexer according to the first mode control signal, and convert the first downlink optical signal into the first downlink optical signal. The downlink electrical signal transmits the first downlink electrical signal to the first ONT protocol processing module.

The first ONT protocol processing module is configured to parse the first downlink electrical signal according to the first mode protocol, obtain service information from the first downlink electrical signal, and transmit the service information to the service processing module.

The wavelength combiner and demultiplexer is also used for transmitting the downlink optical signal within the wavelength band of the second mode in the downlink optical signal to the second ONT optical module.

The second ONT optical module is configured to obtain the second downlink optical signal from the downlink optical signal in the downlink optical signal obtained by the multiplexer and demultiplexer according to the second mode control signal, and convert the second downlink optical signal into a second downlink electrical signal. signal, and transmit the second downlink electrical signal to the second ONT protocol processing module.

The second ONT protocol processing module is configured to parse the second downlink electrical signal according to the second mode protocol, obtain service information from the second downlink electrical signal, and transmit the service information to the service processing module.

For the uplink, the first ONT protocol processing module is further configured to encapsulate the service information obtained from the service processing module according to the first mode protocol, convert the service information into an uplink electrical signal corresponding to the first mode protocol, and convert the service information into the uplink electrical signal corresponding to the first mode protocol. The uplink electrical signal corresponding to the first mode protocol is transmitted to the first ONT optical module.

The first ONT optical module is also used to convert the uplink electrical signal corresponding to the first mode protocol into the first uplink electrical signal according to the first mode control signal, and then convert the first uplink electrical signal into the first uplink optical signal, and pass the The wavelength combiner and demultiplexer couples the first upstream optical signal into the ODN, and transmits the first upstream optical signal to the OLT through the ODN.

The second ONT protocol processing module is further configured to encapsulate the service information obtained from the service processing module according to the second mode protocol, convert the service information into an uplink electrical signal corresponding to the second mode protocol, and convert the service information corresponding to the second mode protocol The uplink electrical signal is transmitted to the second ONT optical module.

The second ONT optical module is also used to convert the uplink electrical signal corresponding to the second mode protocol into the second uplink electrical signal according to the second mode control signal, and then convert the second uplink electrical signal into the second uplink optical signal, and pass the The wavelength combiner and demultiplexer couples the second upstream optical signal into the ODN, and transmits the second upstream optical signal to the OLT through the ODN.

It should be noted that the first ONT protocol processing module, the first ONT optical module, the second ONT protocol processing module, the second ONT optical module, and the wavelength multiplexer and demultiplexer may be independent modules, or may be integrated modules. This is not limited in the application examples.

In the multi-mode ONT provided by the embodiment of the present application, the ONTs of two modes are integrated into one ONT, and two ONT protocol processing modules and two ONT optical modules are controlled to work in two modes through two mode control signals, so that there is no need to Manual operation, the multi-mode ONT can work in any of the two modes according to the mode control signal, so that in the process of multi-mode ONT upgrading, the multi-mode ONT can independently upgrade from one mode to another. The complexity of the multi-mode ONT upgrade operation is effectively reduced.

In a third implementation manner, when N=1 and M=2, the multimode ONT includes one ONT protocol processing module and two ONT optical modules. FIG. 9 is a structural example diagram of still another multi-mode ONT provided by an embodiment of the present application. The multimode ONT also includes a multiplexer and an electronic switch, and the ONT protocol processing module is a multimode ONT protocol processing module.

The ONT control and management module is respectively connected with the service processing module, the multi-mode ONT protocol processing module, the electronic switch, the first ONT optical module and the second ONT optical module; the service processing module is connected with the multi-mode ONT protocol processing module; the multi-mode ONT The protocol processing module is connected with the electronic switch; the electronic switch is respectively connected with the first ONT optical module and the second ONT optical module; the wavelength multiplexer is connected with the first ONT optical module and the second ONT optical module respectively.

The ONT control management module is configured to control the multi-mode ONT protocol processing module and the first ONT optical module to work in the first mode according to the first mode control signal.

The ONT control and management module is further configured to control the multi-mode ONT protocol processing module and the second ONT optical module to work in the second mode according to the second mode control signal.

For the downlink, specifically, the multiplexer and demultiplexer is used to transmit the downlink optical signal within the wavelength band of the first mode in the downlink optical signal to the first ONT optical module.

The first ONT optical module is used to obtain the first downlink optical signal from the downlink optical signal in the downlink optical signal obtained by the multiplexer and demultiplexer according to the first mode control signal, and convert the first downlink optical signal into the first downlink optical signal. The downlink electrical signal is transmitted, and the first downlink electrical signal is transmitted to the first ONT protocol processing module.

The electronic switch is used for gating the path with the first ONT optical module according to the first mode control signal, and transmitting the first downlink electrical signal to the multi-mode ONT protocol processing module.

The multi-mode ONT protocol processing module is configured to parse the first downlink electrical signal according to the first mode protocol, obtain service information from the first downlink electrical signal, and transmit the service information to the service processing module.

The wavelength combiner and demultiplexer is also used for transmitting the downlink optical signal within the wavelength band of the second mode in the downlink optical signal to the second ONT optical module.

The second ONT optical module is configured to obtain the second downlink optical signal from the received downlink optical signal according to the second mode control signal, convert the second downlink optical signal into a second downlink electrical signal, and convert the second downlink electrical signal into a second downlink electrical signal. It is transmitted to the second ONT protocol processing module.

The electronic switch is also used for gating the path with the second ONT optical module according to the second mode control signal, and transmitting the second downlink electrical signal to the multi-mode ONT protocol processing module.

The multi-mode ONT protocol processing module is further configured to parse the second downlink electrical signal according to the second mode protocol, obtain service information from the second downlink electrical signal, and transmit the service information to the service processing module.

For the uplink, the multi-mode ONT protocol processing module is further configured to encapsulate the service information obtained from the service processing module according to the first mode protocol, convert the service information into an uplink electrical signal corresponding to the first mode protocol, and convert the service information into the uplink electrical signal corresponding to the first mode protocol. The uplink electrical signal corresponding to the first mode protocol is transmitted to the first ONT optical module.

The electronic switch is also used for gating the path with the first ONT optical module according to the first mode control signal, and transmits the uplink electrical signal corresponding to the first mode protocol to the first ONT optical module.

The first ONT optical module is also used to convert the uplink electrical signal corresponding to the first mode protocol into the first uplink electrical signal according to the first mode control signal, and then convert the first uplink electrical signal into the first uplink optical signal, and The first upstream optical signal is coupled into the ODN through the wavelength multiplexer and demultiplexer, and the first upstream optical signal is transmitted to the OLT through the ODN.

The multi-mode ONT protocol processing module is also used to encapsulate the service information obtained from the service processing module according to the second mode protocol, convert the service information into an uplink electrical signal corresponding to the second mode protocol, and convert the service information corresponding to the second mode protocol. The uplink electrical signal is transmitted to the second ONT optical module.

The electronic switch is also used for gating the path with the second ONT optical module according to the second mode control signal, and transmitting the uplink electrical signal corresponding to the second mode protocol to the second ONT optical module.

The second ONT optical module is also used to convert the uplink electrical signal corresponding to the second mode protocol into the second uplink electrical signal according to the second mode control signal, and then convert the second uplink electrical signal into the second uplink optical signal, and pass the The wavelength combiner and demultiplexer couples the second upstream optical signal into the ODN, and transmits the second upstream optical signal to the OLT through the ODN.

It should be noted that the first ONT optical module, the second ONT optical module, and the wavelength multiplexer and demultiplexer may be independent modules, or may be integrated modules, which are not limited in this embodiment of the present application.

The multi-mode ONT provided by the embodiment of the present application integrates the multi-mode ONT protocol processing module and the two-mode ONT optical modules into one ONT, and controls the operation of the two ONT protocol processing modules and the two ONT optical modules through two mode control signals Therefore, without manual operation, the multi-mode ONT can work in either of the two modes according to the mode control signal, so that in the process of multi-mode ONT upgrading, the multi-mode ONT can independently realize the transition from one mode to the other. The mode is upgraded to another mode, which effectively reduces the complexity of the multi-mode ONT upgrade operation.

The specific connection modes of the N ONT protocol processing modules and the M ONT optical modules in the above embodiments are only examples. In practical applications, the specific connection between the N ONT protocol processing modules and the M ONT optical modules can be designed as required. Way. Of course, the above example description of the transceiver-tunable multi-mode ONT optical module can also be applied to other multi-mode ONT implementations.

FIG. 10 is a flowchart of a communication method provided by an embodiment of the present application. This method is applied to the multimode ONT described in any of the above embodiments. The multi-mode ONT includes an ONT control and management module, a service processing module, N ONT protocol processing modules, and M ONT optical modules, where N is an integer greater than or equal to 1, and M is an integer greater than or equal to 1, where the ONT control and management module It is respectively connected with the service processing module, N ONT protocol processing modules and M ONT optical modules, the service processing module is connected with N ONT protocol processing modules, one ONT protocol processing module is connected with at least one ONT optical module, and one ONT optical module is connected with at least one ONT optical module. An ONT protocol processing module. The method includes:

S1001. The ONT control and management module controls the N ONT protocol processing modules and the M ONT optical modules to work in P modes according to the P mode control signals.

For downlink:

S1002, the ONT optical module obtains the downlink optical signal of the corresponding mode according to the mode control signal, converts the downlink optical signal of the corresponding mode into the downlink electrical signal of the corresponding mode, and transmits the downlink electrical signal of the corresponding mode to the ONT protocol processing module.

S1003. The ONT protocol processing module acquires service information from the downlink electrical signal of the corresponding mode according to the mode protocol corresponding to the mode control signal, and transmits the service information to the service processing module.

For uplink:

S1004, the ONT protocol processing module converts the service information obtained from the service processing module into an uplink electrical signal corresponding to the mode protocol according to the mode protocol corresponding to the mode control signal, and transmits the uplink electrical signal corresponding to the mode protocol to the ONT optical module.

S1005, the ONT optical module converts the uplink electrical signal of the corresponding mode protocol into the uplink optical signal of the corresponding mode according to the mode control signal, and sends the uplink optical signal of the corresponding mode.

In the communication method provided by the embodiment of the present application, N ONT protocol processing modules and M ONT optical modules are controlled to work in P modes through P mode control signals, so that the multi-mode ONT can work according to the mode control signal without manual operation. In any of the P modes, in the process of multi-mode ONT upgrade, the multi-mode ONT can independently upgrade from one mode to another, effectively reducing the complexity of multi-mode ONT upgrade operations.

It should be noted that the service processing module, the ONT protocol processing module and the ONT control management module included in the multi-mode ONT described in the above-mentioned embodiments may be independent modules, respectively, or may be combined into one, as an integration. chip. For example, the service processing module is integrated with the ONT protocol processing module, and the ONT control management module is independent; or, the service processing module is integrated with the ONT control management module, and the ONT protocol processing module is independent; or, the ONT protocol processing module is integrated with the ONT control management module, and the service The processing module is independent. This embodiment of the present application does not limit this. In addition, the ONT control management module may be a central processing unit (Central Processing Unit, CPU), a microcontroller unit (microcontroller unit, MCU), or the like.

In addition, the multimode ONTs described in the various embodiments of the present application can be used in all time division multiplexing (TDM) PONs, including but not limited to EPON, GPON, 10G EPON, XG-PON, XGS-PON, and In the possible 25G PON or 50G PON in the future. The multi-mode ONT described in the various embodiments of the present application can be used as a full-mode ONT and support all PON modes.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above functions, each network element, such as a multi-mode ONT, includes corresponding hardware structures and/or software modules for performing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in conjunction with the algorithm steps of the examples described in the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In the embodiment of the present application, the multi-mode ONT is divided into functional modules, and each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

As shown in FIG. 11 , a communication apparatus 1100 provided in this embodiment of the present application is used to implement the function of the multi-mode ONT in the foregoing embodiment. The communication device 1100 may be a multi-mode ONT, or may be a device in a multi-mode ONT. Wherein, the communication apparatus 1100 may be a chip system. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

The communication apparatus 1100 includes at least one processor 1101, which is configured to implement the functions of the multi-mode ONT provided by the various embodiments of the present application. Exemplarily, the processor 1101 may be configured to control the multi-mode ONT to operate in P modes according to the P mode control signals, convert the downlink optical signal of the corresponding mode into the downlink electrical signal of the corresponding mode, and according to the mode protocol corresponding to the mode control signal The service information and the like are obtained from the downlink electrical signal of the corresponding mode. For details, refer to the detailed descriptions in the above-mentioned embodiments, which will not be repeated here.

Communication apparatus 1100 may also include at least one memory 1102 for storing program instructions and/or data. Memory 1102 and processor 1101 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1101 may cooperate with the memory 1102. Processor 1101 may execute program instructions stored in memory 1102 . At least one of the at least one memory may be included in the processor.

The communication apparatus 1100 may also include a communication interface 1103 for communicating with other devices through a transmission medium, so that the devices used in the communication apparatus 1100 may communicate with other devices. Exemplarily, if the communication device is a multimode ONT, the other device is an OLT. The processor 1101 uses the communication interface 1103 to send and receive data, and is used to implement the method performed by the multi-mode ONT described in the embodiment corresponding to FIG. 10 .

The specific connection medium between the communication interface 1103 , the processor 1101 , and the memory 1102 is not limited in this embodiment of the present application. In this embodiment of the present application, the communication interface 1103, the processor 1101, and the memory 1102 are connected through a bus 1104 in FIG. 11. The bus is represented by a thick line in FIG. 11. The connection between other components is only for schematic illustration. , is not limited. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 11, but it does not mean that there is only one bus or one type of bus.

In this embodiment of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement or The methods, steps and logic block diagrams disclosed in the embodiments of this application are executed. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

In this embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or may be a volatile memory (volatile memory), such as random access Access memory (random-access memory, RAM). Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and/or data.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only 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 may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it can 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 the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a terminal or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available media that can be accessed by a computer, or a data storage device such as a server, data center, etc. that includes one or more available media integrated. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital video discs (DVDs)), or semiconductor media (eg, SSDs), and the like.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within 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 (14)

1. An ONT, a multimode optical network terminal, comprising: the ONT control management module, the service processing module, the N ONT protocol processing modules and the M ONT optical modules, wherein N is an integer greater than or equal to 1, and M is an integer greater than or equal to 1;

wherein, the ONT control management module is respectively connected with the service processing module, the N ONT protocol processing modules and the M ONT optical modules;

the service processing module is connected with the N ONT protocol processing modules;

one ONT protocol processing module is connected with at least one ONT optical module, and one ONT optical module is connected with at least one ONT protocol processing module;

the ONT control management module is configured to control the N ONT protocol processing modules and the M ONT optical modules to operate in P modes according to P mode control signals, where the modes include an uplink rate, a downlink rate, an uplink wavelength, and a downlink wavelength, and P is an integer greater than or equal to 2;

the ONT optical module is configured to obtain a downlink optical signal in a corresponding mode according to the mode control signal, convert the downlink optical signal in the corresponding mode into a downlink electrical signal in the corresponding mode, and transmit the downlink electrical signal in the corresponding mode to the ONT protocol processing module.

2. The multimode ONT of claim 1, wherein,

the ONT protocol processing module is used for acquiring service information from the downlink electric signal of the corresponding mode according to the mode protocol corresponding to the mode control signal and transmitting the service information to the service processing module;

the ONT protocol processing module is further configured to convert the service information acquired from the service processing module into an uplink electrical signal of a corresponding mode protocol according to a mode protocol corresponding to the mode control signal, and transmit the uplink electrical signal of the corresponding mode protocol to the ONT optical module;

the ONT optical module is further configured to convert the uplink electrical signal of the corresponding mode protocol into an uplink optical signal of a corresponding mode according to the mode control signal, and send the uplink optical signal of the corresponding mode.

3. The multimode ONT according to claim 1 or 2, wherein when N is 1 and M is 1, the ONT protocol processing module is a multimode ONT protocol processing module, and the ONT optical module is a transceiver-tunable multimode ONT optical module;

the transceiving adjustable multimode ONT optical module is configured to acquire an ith downlink optical signal according to an ith mode control signal, convert the ith downlink optical signal into an ith downlink electrical signal, and transmit the ith downlink electrical signal to the multimode ONT protocol processing module, where i is an integer and is 1 to P, the ith mode control signal is configured to control the multimode ONT protocol processing module and the transceiving adjustable multimode ONT optical module to operate in an ith mode, a downlink rate of the ith downlink optical signal is a downlink rate corresponding to the ith mode, and a downlink wavelength of the ith downlink optical signal is a downlink wavelength corresponding to the ith mode;

and the multimode ONT protocol processing module is used for acquiring service information from the ith downlink electric signal according to an ith mode protocol and transmitting the service information to the service processing module.

4. The multimode ONT of claim 3, wherein,

the multimode ONT protocol processing module is further configured to convert the service information acquired from the service processing module into an uplink electrical signal corresponding to an ith mode protocol according to the ith mode protocol, and transmit the uplink electrical signal corresponding to the ith mode protocol to the transceiving adjustable multimode ONT optical module;

the transceiving adjustable multimode ONT optical module is further configured to convert the uplink electrical signal corresponding to the ith mode protocol into an ith uplink optical signal according to the ith mode control signal, and send the ith uplink optical signal, where an uplink rate of the ith uplink optical signal is an uplink rate corresponding to the ith mode, and an uplink wavelength of the ith uplink optical signal is an uplink wavelength corresponding to the ith mode.

5. The multimode ONT of claim 3, wherein the transceiver-tunable multimode ONT optical module comprises R receive channels and T transmit channels, R being an integer greater than or equal to 1 and T being an integer greater than or equal to 1.

6. The multimode ONT of claim 5, wherein when R is 2 and T is 2, the first receive path comprises a first wavelength filter, a first photodetector, a first transimpedance amplifier and a first limiting amplifier, the first transmit path comprises a first laser driver and a first laser, the second receive path comprises a second wavelength filter, a second photodetector, a second transimpedance amplifier and a second limiting amplifier, the second transmit path comprises a second laser driver and a second laser, the transceiver tunable multimode ONT optical module further comprises an ONT optical module control management module and a wavelength combiner/splitter;

wherein the ONT optical module control management module is respectively connected to the first laser driver, the first laser, the first wavelength filter, the first photodetector, the first transimpedance amplifier, the first limiting amplifier, the second laser driver, the second laser, the second wavelength filter, the second photodetector, the second transimpedance amplifier, and the second limiting amplifier;

the first laser driver is connected with the first laser;

the first laser is connected with the wave combining and splitting device;

the first wavelength filter is respectively connected with the wave-combining wave-splitting filter and the first photoelectric detector;

the first photoelectric detector is connected with the first transimpedance amplifier;

the first transimpedance amplifier is connected with the first limiting amplifier;

the second laser driver is connected with the second laser;

the second laser is connected with the wave combining and splitting device;

the second wavelength filter is respectively connected with the wave-combining wave-splitting filter and the second photoelectric detector;

the second photoelectric detector is connected with the second transimpedance amplifier;

the second transimpedance amplifier is connected with the second limiting amplifier;

the ONT optical module control management module is used for controlling the first receiving channel and the first sending channel to work in a first mode according to a first mode control signal;

the ONT optical module control management module is further configured to control the second receiving channel and the second sending channel to operate in a second mode according to a second mode control signal;

the first mode control signal is any one of the P mode control signals, the second mode control signal is any one of the P mode control signals, and a first mode corresponding to the first mode control signal is different from a second mode corresponding to the second mode control signal.

7. The multimode ONT of claim 1 or 2, wherein when N-2 and M-2, the ONT further comprises a wavelength combiner/splitter;

the ONT control management module is respectively connected with the service processing module, the first ONT protocol processing module, the first ONT optical module, the second ONT protocol processing module and the second ONT optical module;

the service processing module is respectively connected with the first ONT protocol processing module and the second ONT protocol processing module;

the first ONT protocol processing module is connected with the first ONT optical module;

the second ONT protocol processing module is connected with the second ONT optical module;

the wave combining and splitting filter is respectively connected with the first ONT optical module and the second ONT optical module;

the ONT control management module is configured to control the first ONT protocol processing module and the first ONT optical module to operate in a first mode according to a first mode control signal, where the first mode control signal is any one of the P mode control signals;

the wavelength multiplexing/demultiplexing device is configured to transmit a downlink optical signal in a wavelength band range of the first mode in a downlink optical signal to the first ONT optical module;

the ONT control management module is further configured to control the second ONT protocol processing module and the second ONT optical module to operate in a second mode according to a second mode control signal, where the second mode control signal is any one of the P mode control signals, and a first mode corresponding to the first mode control signal is different from a second mode corresponding to the second mode control signal;

and the wavelength multiplexing/demultiplexing device is further configured to transmit the downlink optical signal in the second mode of the downlink optical signal to the second ONT optical module.

8. The multimode ONT of claim 7, wherein,

the wavelength multiplexer/demultiplexer is further configured to couple a first uplink optical signal obtained by conversion by the first ONT optical module into an Optical Distribution Network (ODN), where an uplink rate of the first uplink optical signal is an uplink rate corresponding to the first mode, and an uplink wavelength of the first uplink optical signal is an uplink wavelength corresponding to the first mode;

the wavelength multiplexing/demultiplexing device is further configured to couple a second uplink optical signal obtained by conversion by the second ONT optical module into the ODN, where an uplink rate of the second uplink optical signal is an uplink rate corresponding to the second mode, and an uplink wavelength of the second uplink optical signal is an uplink wavelength corresponding to the second mode.

9. The multimode ONT according to claim 1 or 2, wherein when N is 1 and M is 2, the ONT further comprises a wavelength combiner/splitter and an electronic switch, the ONT protocol processing module is a multimode ONT protocol processing module;

the ONT control management module is respectively connected with the service processing module, the multimode ONT protocol processing module, the electronic switch, the first ONT optical module and the second ONT optical module;

the service processing module is connected with the multimode ONT protocol processing module;

the multimode ONT protocol processing module is connected with the electronic switch;

the electronic switch is respectively connected with the first ONT optical module and the second ONT optical module;

the wave combining and splitting filter is respectively connected with the first ONT optical module and the second ONT optical module;

the ONT control management module is configured to control the multimode ONT protocol processing module and the first ONT optical module to operate in a first mode according to a first mode control signal, where the first mode control signal is any one of the P mode control signals;

the electronic switch is configured to gate a path with the first ONT optical module according to the first mode control signal, and transmit a first downlink electrical signal converted by the first ONT optical module to the multimode ONT protocol processing module;

the ONT control management module is further configured to control the multimode ONT protocol processing module and the second ONT optical module to operate in a second mode according to a second mode control signal, where the second mode control signal is any one of the P mode control signals, and a first mode corresponding to the first mode control signal is different from a second mode corresponding to the second mode control signal;

the electronic switch is further configured to gate a path with the second ONT optical module according to the second mode control signal, and transmit a second downlink electrical signal obtained by conversion by the second ONT optical module to the multimode ONT protocol processing module.

10. The multimode ONT of claim 9, wherein,

the electronic switch is further configured to gate a path with the first ONT optical module according to the first mode control signal, and transmit the uplink electrical signal corresponding to the first mode protocol, converted by the multimode ONT protocol processing module, to the first ONT optical module;

and the electronic switch is further configured to gate a path with the second ONT optical module according to the second mode control signal, and transmit the uplink electrical signal corresponding to the second mode protocol, obtained by the conversion by the multimode ONT protocol processing module, to the second ONT optical module.

11. An ONT optical module of a transceiving adjustable multimode optical network terminal is characterized by comprising: r receiving channels and T sending channels, wherein R is an integer greater than or equal to 1, and T is an integer greater than or equal to 1;

the receiving channel is used for acquiring the downlink optical signal of the corresponding mode according to the mode control signal, converting the downlink optical signal of the corresponding mode into a downlink electric signal of the corresponding mode, and transmitting the downlink electric signal of the corresponding mode to the ONT protocol processing module;

and the sending channel is used for converting the uplink electric signal of the corresponding mode protocol acquired from the ONT protocol processing module into an uplink optical signal of the corresponding mode according to the mode control signal and sending the uplink optical signal of the corresponding mode.

12. A communications apparatus, comprising: at least one processor, a memory, a bus and a communication interface, wherein the memory is adapted to store a computer program such that the computer program realizes the functionality of the multimode optical network termination, ONT, as claimed in any of the claims 1-10 when executed by the at least one processor.

13. A passive optical network, PON, system comprising: the multi-mode optical network termination, ONT, of any one of claims 1 to 10 or the communication device of claim 12, and an optical distribution network, ODN, and an optical line termination, OLT.

14. A chip system, characterized in that the chip system comprises a processor and may further comprise a memory for implementing the functionality of the multimode optical network termination ONT according to any of the claims 1 to 10.

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