WO2021196932A1

WO2021196932A1 - Multiplexing-based channel identification method and apparatus therefor

Info

Publication number: WO2021196932A1
Application number: PCT/CN2021/077948
Authority: WO
Inventors: 曾小飞; 林华枫
Original assignee: 华为技术有限公司
Priority date: 2020-03-31
Filing date: 2021-02-25
Publication date: 2021-10-07
Also published as: CN113473268A

Abstract

Disclosed in the embodiments of the present application are a multiplexing-based channel identification method and an apparatus therefor. The method comprises that: an optical network terminal (ONT) receives a multiplexed bit stream from an optical network unit OLT, and processes the multiplexed bit stream to obtain multiple channels of bit streams, wherein for each channel of a bit stream among the multiple channels of bit streams, the bit stream comprises first indication information, and the first indication information is used to determine a channel corresponding to said bit stream; the ONT determines a channel corresponding to the ONT; and the ONT determines a target bit stream from among the multiple channels of bit streams, wherein a channel corresponding to the target bit stream is the same as the channel corresponding to the ONT. By means of implementing the embodiments of the present application, the channel corresponding to the bit stream may be accurately determined.

Description

Channel identification method and device based on multiplexing

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 202010249297.0, and the invention title is "Multiplex-based channel identification method and device" on March 31, 2020, and its entire content Incorporated in this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a method and device for channel identification based on multiplexing.

Background technique

Time and wavelength division optical access system (time and wavelength division multiple optical access system, TWDM OAS) can effectively solve the time division multiplexing passive optical network (time division multiplexing passive optical network, TDM PON) rogue optical network terminal (optical network) terminal, ONT) problem. PON belongs to time division multiplexing. Normally, the ONT sends upstream data packets according to the timestamp assigned by the optical line termination (OLT). If a certain ONT emits light without a time stamp assigned, it will conflict with the light-emitting signals of other ONTs. Among them, the ONT that does not send the upstream optical signal according to the assigned timestamp is a rogue ONT (rogue ONT).

The basic principle of TWDM OAS is as follows: In the OLT downstream direction, the multiplexing module receives the bit stream of multiple downstream data frames from the processing module, and multiplexes the multiple downstream bit streams into a high-speed downstream through bit interleaving. Bit stream, and send the high-speed downstream bit stream to the laser driver. After receiving the high-speed bit stream, the laser driver drives the laser to emit light, and the downstream optical signal carrying the high-speed bit stream enters the combiner/demultiplexer. The combiner/demultiplexer couples the downstream optical signal into the backbone fiber in the downstream direction.

In the ONT downstream direction, after the combiner/demultiplexer receives the downstream optical signal from the backbone fiber, it separates the downstream optical signal and outputs it to the ONT downstream high-speed receiving module. The downstream high-speed receiving module converts the downstream optical signal into an electrical signal (ie, downstream high-speed data bit stream), and then outputs it to the demultiplexing module. The demultiplexing module restores the downstream high-speed data bit stream to multiple downstream bit streams in a bit de-interleaving manner, and then extracts one downstream bit stream to the processing module.

However, the ONT side cannot determine the channel corresponding to the downstream bit stream obtained after bit deinterleaving. In addition, the ONT can only extract the bit stream corresponding to a certain channel. Therefore, how to determine the channel corresponding to the bit stream on the ONT side is a technical problem to be solved urgently.

Summary of the invention

The embodiments of the present application provide a method and device for channel identification based on multiplexing, which can accurately determine the channel corresponding to the bit stream.

In the first aspect, an embodiment of the present application provides a multiplexing-based channel identification method. The method includes: an ONT receives a multiplexed bit stream from an OLT, and processes the multiplexed bit stream to obtain a multiplexed bit stream. Stream; For each bit stream in the multi-channel bit stream, the bit stream includes first indication information, and the first indication information is used to determine the channel corresponding to the bit stream; the ONT determines the channel corresponding to the ONT; Determine the target bit stream in the channel bit stream; the channel corresponding to the target bit stream is the same as the channel corresponding to the ONT.

In this technical solution, by carrying the first indication information in each bit stream, the ONT can accurately determine the channel corresponding to the bit stream according to the first indication information in the bit stream. Further, it is beneficial for the ONT to obtain the required target bit stream.

In an implementation manner, the specific implementation manner for the ONT to determine the channel corresponding to the ONT may be: the ONT determines the first bitstream from the multiple bitstreams; the first bitstream also includes the correspondence between the ONT identifier and the channel identifier Relationship: The ONT determines the channel corresponding to the ONT according to the correspondence between the ONT identification and the channel identification, and the identification of the ONT.

In an implementation manner, the ONT corresponds to a default channel; the first bit stream is a bit stream corresponding to the default channel.

In this technical solution, when the default channel of each ONT corresponding to the OLT is the same, each ONT can determine the channel corresponding to each ONT through the corresponding relationship carried in the first bit stream. In this way, it is beneficial to improve the utilization of the first bit stream.

In an implementation manner, the ONT does not correspond to the default channel; the specific implementation manner for the ONT to determine the first bitstream from the multiple bitstreams may be: determining any one of the multiple bitstreams as the first bitstream ; Each bit stream in the multi-channel bit stream includes the corresponding relationship between the aforementioned ONT identifier and the channel identifier.

In this technical solution, on the one hand, the ONT does not need to access the default channel, but can also obtain the correspondence between the ONT ID and the channel ID, and then determine the channel corresponding to the ONT; on the other hand, the ONT can stream multiple bit streams. Any bit stream in is determined as the first bit stream. Therefore, in this way, it is beneficial to improve the efficiency of determining the channel corresponding to the ONT.

In an implementation manner, the first bitstream includes first broadcast information, the first broadcast information includes a correspondence between an ONT identifier and a channel identifier, the first broadcast information is applicable to the ONT corresponding to the OLT, and the corresponding The ONT includes the aforementioned ONT.

In this technical solution, the correspondence between the ONT identifier and the channel identifier is included in the first broadcast information, and the first broadcast information is applicable to the ONT corresponding to the OLT, which can mean that each ONT corresponding to the OLT can receive the first broadcast information. For broadcast information, after each ONT corresponding to the OLT receives the first broadcast information, the corresponding relationship can be obtained by analyzing the first broadcast information.

In an implementation manner, the method further includes: the ONT determines the channel corresponding to the second bit stream according to the first indication information included in the second bit stream; the second bit stream is any one of the multiple bit streams Stream; if the channel corresponding to the second bit stream is different from the channel corresponding to the ONT, the step of determining the target bit stream from the multiple bit streams is triggered.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams have a sequential relationship; the specific implementation manner for the ONT to determine the target bitstream from the multiple bitstreams may be: the ONT according to the channel and the corresponding channel of the second bitstream The channel corresponding to the ONT determines the position information of the target bit stream relative to the second bit stream; and determines the target bit stream from the multiple bit streams according to the position information of the target bit stream relative to the two bit stream.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable For the ONT corresponding to the OLT, the ONT corresponding to the OLT includes the aforementioned ONT.

In this technical solution, the first indication information is included in the second broadcast information, and the second broadcast information is applicable to the ONT corresponding to the OLT, which can mean that each ONT corresponding to the OLT can receive the second broadcast information, and the OLT corresponds to After receiving the second broadcast information, each of the ONTs can parse the second broadcast information to obtain the first indication information in the second broadcast information.

In an implementation manner, for each bit stream in the multiple bit stream, the bit stream is composed of multiple data frames, and some or all of the multiple data frames include the second broadcast information. The stream includes a plurality of second broadcast information.

In this technical solution, when a bit stream carries multiple second broadcast information, it is beneficial to ensure that the ONT can successfully obtain the second broadcast information.

In an implementation manner, the method further includes: the ONT determines the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream; the second bit stream is the multi-channel bit stream Any bit stream in.

In an implementation manner, the specific implementation manner for the ONT to determine the channel corresponding to each bitstream in the multiple bitstreams according to the first indication information included in the second bitstream may be:

For each bitstream in the multiple bitstreams, the ONT determines the channel corresponding to the bitstream according to the first indication information included in the bitstream.

In an implementation manner, the specific implementation manner for the ONT to determine the channel corresponding to each bitstream in the multiple bitstreams according to the first indication information included in the second bitstream may be as follows: An indication information to determine the channel corresponding to the second bit stream; for each bit stream in the multi-channel bit stream except the second bit stream, the ONT determines the other bit stream according to the channel corresponding to the second bit stream The channel corresponding to each bit stream other than that.

In an implementation manner, the method further includes: if the channel corresponding to the first bit stream is different from the channel corresponding to the ONT, triggering the step of determining the target bit stream from the multiple bit streams.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams have an order relationship; the specific implementation manner for the ONT to determine the target bitstream from the multiple bitstreams may be: the ONT according to the channel and the corresponding channel of the first bitstream The channel corresponding to the ONT determines the position information of the target bit stream relative to the first bit stream; and according to the position information of the target bit stream relative to the first bit stream, the target bit stream is determined from the multiple bit streams.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream is composed of multiple data frames, and the first indication information included in the bit stream is the information of any one of the multiple data frames. Frame header information: The frame header information used to compose the data frames of different bit streams is different.

In this technical solution, compared to parsing the second broadcast information (ie ploam message), the ONT determines the frame header information of the data frame faster. Therefore, determining the channel corresponding to the bit stream through the frame header information is beneficial to improve the determination. The efficiency of the channel corresponding to the bitstream.

In an implementation manner, the ONT includes a processing module, and the method further includes:

The ONT obtains the capability information of the processing module; if the capability information indicates that the processing module does not have the ability to parse the header information of the data frame used to compose the first bit stream, the ONT pair is used to compose the first bit stream The header information of the data frame is converted, and the processing module has the ability to analyze the header information of the converted data frame for composing the first bit stream.

In this technical solution, the processing module may not have the ability to analyze data frames corresponding to non-preset frame header information. The capability information of the processing device indicates that the processing module does not have the ability to parse the header information of the data frame used to compose the first bit stream, and convert the header information of the data frame used to compose the first bit stream. The processing module has the ability to analyze the header information of the converted data frame used to compose the first bit stream. In this way, it can be ensured that the ONT can resolve the correspondence between the ONT identifier and the channel identifier.

In the second aspect, an embodiment of the present application provides another multiplexing-based channel identification method. The method includes: an OLT generates multiple data streams, and processes the multiple bit streams to obtain a multiplexed bit stream; For each bit stream in the multi-channel bit stream, the bit stream includes first indication information, and the first indication information is used to determine the channel corresponding to the bit stream; the OLT transmits the multiplexed bit stream to the corresponding OLT ONT.

In this technical solution, by carrying the first indication information in each bit stream, it is beneficial for the ONT to accurately determine the channel corresponding to the bit stream according to the first indication information in the bit stream.

In an implementation manner, the first bit stream in the multi-channel bit stream further includes a corresponding relationship between the ONT identifier and the channel identifier.

In one implementation, the ONT does not correspond to a default channel; the first bitstream is any one of the multiple bitstreams, and each bitstream in the multiple bitstream includes one of the aforementioned ONT identifier and channel identifier. Correspondence between.

In an implementation manner, the first bit stream includes first broadcast information, the first broadcast information includes a correspondence between an ONT identifier and a channel identifier, and the first broadcast information is applicable to an ONT corresponding to the OLT.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable ONT corresponding to the OLT.

In one implementation, for each bit stream in the multiple bit stream, the bit stream is composed of multiple data frames, and some or all of the multiple data frames include the second broadcast information, and the bit stream is composed of multiple data frames. The stream includes a plurality of second broadcast information.

In an implementation manner, the specific implementation manner for the OLT to generate multiple data streams may be: the OLT generates multiple original data streams; if it is used to form the frame header of the data frame of each original data stream in the multiple original data streams If the information is the same, the OLT converts the frame header information of the data frame used to form each original data stream in the multiple original data streams to obtain the multiple data streams.

In the third aspect, the embodiments of the present application provide a communication device that can implement part or all of the functions of the ONT in the method example described in the first aspect. The functions in all the embodiments may also have the function of independently implementing any of the embodiments in this application. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

In an implementation manner, the structure of the communication device may include a communication module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the foregoing method. The communication module is used to support communication between the communication device and other devices. The communication device may further include a storage module for coupling with the processing module and the communication module, which stores computer programs and data necessary for the communication device.

In an implementation manner, the communication device includes:

The communication module is used to receive the multiplexed bit stream from the OLT;

The processing module is used to process the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first indication information is used to determine the The channel corresponding to the bitstream;

The processing module is also used to determine the channel corresponding to the communication device; determine the target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the communication device.

As an example, the processing module may be a processor, the communication module may be a transceiver or a communication interface, and the storage module may be a memory.

In an implementation manner, the communication device includes:

Transceiver, used to receive the multiplexed bit stream from the OLT;

The processor is configured to process the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first indication information is used to determine the The channel corresponding to the bitstream;

The processor is also used to determine the channel corresponding to the communication device; determine the target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the communication device.

In one implementation, the processing module may be composed of a routing unit and a processing unit. Wherein, the routing unit can be used to determine the second bit stream from the multiple bit streams and transmit the second bit stream to the processing unit; the processing unit is used to determine the second bit stream according to the first indication information in the second bit stream , Determine the channel corresponding to the second bit stream; determine the channel corresponding to the communication device, and if the channel corresponding to the second bit stream is different from the channel corresponding to the communication device, send second indication information to the routing unit, the second indication The information is used to determine the target bit stream; the routing unit is also used to determine the target bit stream from the multiple bit streams according to the second indication information, and transmit the target bit stream to the processing unit; the target bit stream corresponds to The channel is the same as the channel corresponding to the communication device.

In an implementation manner, the first bit stream in the multi-channel bit stream may further include a correspondence between the communication device identifier and the channel identifier. The routing unit may also be used to determine the first bit stream from the multiple bit streams, and transmit the first bit stream to the processing unit. When the processing unit is used to determine the channel corresponding to the communication device, it can be specifically used to determine the channel corresponding to the communication device according to the correspondence between the communication device identifier and the channel identifier, and the identifier of the aforementioned communication device.

In an implementation manner, the communication device corresponds to a default channel; the first bit stream is a bit stream corresponding to the default channel.

In an implementation manner, the communication device does not correspond to a default channel; when the routing unit is used to determine the first bit stream from the multiple bit streams, it is specifically used to: determine any one of the multiple bit streams as The first bit stream; each bit stream in the multi-channel bit stream includes the correspondence between the aforementioned communication device identifier and the channel identifier.

In an implementation manner, the first bitstream may include first broadcast information, the first broadcast information includes the aforementioned correspondence between the communication device identifier and the channel identifier, and the first broadcast information is applicable to the communication device corresponding to the OLT, The communication device corresponding to the OLT includes the aforementioned communication device.

In an implementation manner, the second indication information may include the identification of the channel corresponding to the second bit stream and the identification of the channel corresponding to the aforementioned communication device; When the target bitstream is described, it can be specifically used to determine the target bitstream from the multiple bitstreams according to the identifier of the channel corresponding to the second bitstream and the identifier of the channel corresponding to the aforementioned communication device.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams may have an order relationship, and the second indication information may include position information of the target bitstream relative to the second bitstream; the routing unit is configured to follow the second indication When the information determines the target bit stream from the multiple bit streams, it is specifically used to determine the target bit stream from the multiple bit streams according to the position information of the target bit stream relative to the second bit stream.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable For the communication device corresponding to the OLT, the communication device corresponding to the OLT includes the aforementioned communication device.

In one implementation, for each bit stream in the multi-channel bit stream, the bit stream is composed of multiple data frames, and some or all of the multiple data frames include the second broadcast information. The stream may include multiple second broadcast information.

In another implementation manner, the processing module may be composed of a demultiplexing unit and a processing unit. Among them, the demultiplexing unit is used to obtain the multiplexed bit stream and process the multiplexed bit stream to obtain the multiple bit stream; the demultiplexing unit is also used to obtain the multiple bit stream according to the second bit stream The included first indication information determines the channel corresponding to each bit stream in the multi-channel bit stream; determines the first bit stream from the multi-channel bit stream; transmits the first bit stream to the processing unit; the first bit stream is also Including the correspondence between the communication device identifier and the channel identifier; the second bit stream is any one of the multiple bit streams; the processing unit is used to determine the correspondence between the communication device identifier and the channel identifier, and the communication The identifier of the device determines the channel corresponding to the communication device; sends second indication information to the demultiplexing unit, where the second indication information is used to determine the target bit stream; the target bit stream is the bit stream required by the communication device; the processing unit also It can be used to parse the first bit stream from the demultiplexing unit to obtain the corresponding relationship between the communication device identifier and the channel identifier carried in the first bit stream; the demultiplexing unit is also used to follow the second instruction The information determines the target bit stream from the multiple bit streams, and transmits the target bit stream to the processing unit; the channel corresponding to the target bit stream is the same as the channel corresponding to the communication device.

In an implementation manner, the communication device corresponds to a default channel; the first bit stream may be a bit stream corresponding to the default channel.

In an implementation manner, the communication device does not correspond to a default channel; when the demultiplexing unit is used to determine the first bit stream from the multiple bit streams, it is specifically used to: determine any one of the multiple bit streams It is the first bit stream; each bit stream in the multi-channel bit stream includes the corresponding relationship between the aforementioned communication device identifier and the channel identifier.

In an implementation manner, the demultiplexing unit is further used to send third indication information to the processing unit, the third indication information is used to indicate the channel corresponding to the first bit stream; the processing unit is used to send the first bit stream to the demultiplexing unit The second indication information is specifically used for: if the channel corresponding to the first bit stream is different from the channel corresponding to the aforementioned communication device, sending the second indication information to the demultiplexing unit.

In an implementation manner, the second indication information may include the identifier of the channel corresponding to the communication device; when the demultiplexing unit is used to determine the target bit stream from the multiple bit streams according to the second indication information, it is specifically used to: A target bit stream is determined in the channel bit stream, and the identifier of the channel corresponding to the target bit stream is the same as the identifier of the channel corresponding to the communication device.

In an implementation manner, the positions of the bit streams in the multiple bit streams may have an order relationship, and the second indication information may include position information of the target bit stream relative to the first bit stream; the demultiplexing unit is used to When the instruction information determines the target bit stream from the multiple bit streams, it is specifically used to determine the target bit stream from the multiple bit streams according to the position information of the target bit stream relative to the first bit stream.

In an implementation manner, the demultiplexing unit is also used to obtain capability information of the processing unit; if the capability information indicates that the processing unit does not have the ability to parse the header information of the data frame used to compose the first bit stream, then Converting the frame header information of the data frame used to compose the first bit stream, and the processing unit has the ability to analyze the converted frame header information of the data frame used to compose the first bit stream.

In an implementation manner, when the demultiplexing unit is used to determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream in the multi-channel bit stream, it is specifically used for : For each bit stream in the multi-channel bit stream, determine the channel corresponding to the bit stream according to the first indication information included in the bit stream.

In an implementation manner, when the demultiplexing unit is used to determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream in the multi-channel bit stream, it is specifically used for : Determine the channel corresponding to the second bit stream according to the first indication information included in the second bit stream in the multi-channel bit stream; for each bit stream in the multi-channel bit stream except the second bit stream, according to the The channel corresponding to the second bitstream determines the channel corresponding to the bitstream.

In the fourth aspect, the embodiments of the present application provide another communication device that can implement part or all of the functions of the OLT in the method example described in the second aspect. Or the functions in all the embodiments may also have the function of independently implementing any of the embodiments in this application. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

In an implementation manner, the structure of the communication device may include a processing module and a communication module, and the processing module is configured to support the communication device to perform corresponding functions in the foregoing method. The communication module is used to support communication between the communication device and other devices. The communication device may further include a storage module for coupling with the processing module and the communication module, which stores computer programs and data necessary for the communication device.

In an implementation manner, the communication device includes:

The processing module is used to generate multiple data streams and process the multiple bit streams to obtain a multiplexed bit stream; for each bit stream in the multiple bit streams, the bit stream includes the first indication information, the second bit stream An indication information is used to determine the channel corresponding to the bit stream;

The communication module is used to transmit the multiplexed bit stream to the optical network terminal ONT corresponding to the communication device.

In an implementation manner, the communication device includes:

The processor is used to generate multiple data streams, process the multiple bit streams to obtain a multiplexed bit stream; for each bit stream in the multiple bit streams, the bit stream includes first indication information, the first An indication information is used to determine the channel corresponding to the bit stream;

The transceiver is used to transmit the multiplexed bit stream to the optical network terminal ONT corresponding to the communication device.

In an implementation manner, the processing module may be composed of a processing unit and a multiplexing unit. The processing unit is used to generate multiple bit streams and transmit the multiple bit streams to the multiplexing unit; the multiplexing unit is used to process the multiple data streams to obtain a multiplexed bit stream.

In an implementation manner, the first bit stream in the multi-channel bit stream may further include a corresponding relationship between the ONT identifier and the channel identifier.

In an implementation manner, the first bit stream includes first broadcast information, the first broadcast information includes a correspondence between an ONT identifier and a channel identifier, and the first broadcast information is applicable to the ONT corresponding to the aforementioned communication device.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable ONT corresponding to the communication device.

In another implementation manner, the processing module may be composed of a processing unit, a multiplexing unit, and a laser driver unit, and the communication device may also include a laser module. Among them, the processing unit is used to generate multiple bit streams and transmit the multiple bit streams to the multiplexing unit; the multiplexing unit is used to process the multiple data streams to obtain a multiplexed bit stream and combine the multiple bit streams The multiplexed bit stream is transmitted to the laser driver unit. The laser driver unit is used to drive the laser module to emit light. The laser module is used to generate an optical signal carrying a multiplexed bit stream. The communication module is used to transmit the optical signal carrying the multiplexed bit stream to the ONT.

In one implementation manner, the ONT does not correspond to a default channel; the first bitstream is any one of the multiple bitstreams, and each bitstream in the multiple bitstream includes the difference between the ONT identifier and the channel identifier. Correspondence.

In one implementation, when the multiplexing unit is used to obtain multiple data streams, it is specifically used to: obtain multiple original data streams; if used to form the data frame of each original data stream in the multiple original data streams If the frame header information is the same, the frame header information of the data frame used to form each original data stream in the multiple original data streams is converted to obtain the multiple data streams.

In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program used by the foregoing ONT. When the computer program is running, the ONT executes the method of the foregoing first aspect.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program used by the above-mentioned OLT. When the computer program is running, the OLT executes the method of the above-mentioned second aspect.

In a seventh aspect, the present application also provides a computer program product including a computer program, which when running on a computer, causes the computer to execute the method described in the first aspect.

In an eighth aspect, this application also provides a computer program product including a computer program, which when running on a computer, causes the computer to execute the method described in the second aspect.

In a ninth aspect, the present application provides a chip system that includes at least one processor and an interface, and is used to support the ONT to implement the functions involved in the first aspect, for example, to determine or process the data and data involved in the above methods. At least one of the information. In a possible design, the chip system further includes a memory, and the memory is used to store the necessary computer programs and data of the ONT. The chip system can be composed of chips, and can also include chips and other discrete devices.

In a tenth aspect, the present application provides a chip system that includes at least one processor and an interface, and is used to support the OLT to implement the functions involved in the second aspect, for example, to determine or process the data and data involved in the above methods. At least one of the information. In a possible design, the chip system further includes a memory, and the memory is used to store computer programs and data necessary for the OLT. The chip system can be composed of chips, and can also include chips and other discrete devices.

Description of the drawings

FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

2a is a schematic flowchart of a multiplexing-based channel identification method provided by an embodiment of the present application;

FIG. 2b is a schematic diagram of a scene for performing bit interleaving processing on bit stream a, bit stream b, and bit stream c according to an embodiment of the present application;

FIG. 2c is a schematic diagram of the format of a GPON downlink frame provided by an embodiment of the present application;

Figure 2d is a schematic diagram of the structure of a PLOAMd domain provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of another multiplexing-based channel identification method provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of yet another multiplexing-based channel identification method provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Fig. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

In order to better understand the multiplexing-based channel identification method provided by the embodiment of the present application, the following first describes the communication system to which the embodiment of the present application is applicable.

Please refer to FIG. 1, which is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. The communication system may include, but is not limited to, one OLT and two ONTs. The number and form of the equipment shown in FIG. 1 are used as examples and do not constitute a limitation to the embodiment of the present application. In actual applications, it may include two or more OLTs. , More than two ONTs. The communication system shown in FIG. 1 takes an OLT 101 and two ONTs 102 as an example.

Among them, the OLT101 can be used to generate multiple data streams, process the multiple bit streams to obtain a multiplexed bit stream; and transmit the multiplexed bit stream to the two ONTs 102 corresponding to the OLT101. Each bit stream in the multi-channel bit stream may include first indication information, and the first indication information in the bit stream is used to determine the channel corresponding to the bit stream. It should be noted that the transmission of the multiplexed bit stream by the OLT 101 to the two ONTs 102 corresponding to the OLT 101 is only for example, and does not constitute a limitation to the embodiment of the present application. The OLT 101 can transmit the multiplexed bit stream to all ONTs corresponding to the OLT. The ONT corresponding to the OLT may refer to the ONT connected to the OLT through an optical fiber. In the embodiment of the present application, one ONT corresponds to one channel, different ONTs correspond to different channels, and one channel corresponds to one bit stream. Taking ONT1 corresponding to channel 1 as an example, the bit stream required by ONT1 is the bit stream corresponding to channel 1. The multiple data streams generated by the OLT101 may include bit streams required by the ONT corresponding to the OLT101. Since each bit stream includes the first indication information for determining the channel corresponding to the bit stream, the ONT 102 can accurately determine the channel corresponding to the bit stream according to the first indication information in the bit stream.

After the ONT 102 receives the multiplexed bit stream from the OLT 101, it can process the multiplexed bit stream to obtain the aforementioned multiple bit stream; determine the channel corresponding to the ONT 102; determine the target bit stream from the multiple bit stream; The channel corresponding to the target bit stream is the same as the channel corresponding to the ONT 102. Among them, the target bit stream is the bit stream required by the ONT102.

It should be noted that the ONT mentioned in the embodiment of this application may also be referred to as an optical network unit (ONU). It should also be noted that the multiplexing-based channel identification method provided in the embodiment of the present application can be applied to a passive optical network (PON). Such as the passive optical network in the International Telecommunication Union, telecommunication standardization sector (ITU-T) system, and the passive optical network in the Institute of Electrical and Electronics Engineers (IEEE) system . Passive optical networks in the ITU-T system can include, but are not limited to: Gigabit-capable passive optical networks (GPON), 10-Gigabit-capable passive optical networks (XG) -PON), symmetric passive optical network (10-Gigabit-capable symmetric passive optical network, XGS-PON) and time and wavelength division passive optical network (time and wavelength division multiple passive optical networks, TWDM PON). Passive optical networks in the IEEE system may include but are not limited to: Ethernet passive optical networks (EPON) and 10G Ethernet passive optical networks (10Gbit/s ethernet passive optical networks, 10G-EPON).

PON is a pure medium network, which avoids electromagnetic interference and lightning effects of external equipment, reduces the failure rate of lines and external equipment, improves system reliability, and saves maintenance costs.

It is understandable that the communication system described in the embodiments of this application is to illustrate the technical solutions of the embodiments of this application more clearly, and does not constitute a limitation to the technical solutions provided in the embodiments of this application. Those skilled in the art will know that as the system With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The multiplexing-based channel identification method and data transmission device provided by the present application will be described in detail below with reference to the accompanying drawings.

Please refer to FIG. 2a, which is a schematic flowchart of a multiplexing-based channel identification method provided by an embodiment of the present application. Among them, the execution subject of steps S201 to S202 is the OLT, or the chip in the OLT, and the execution subject of steps S203 to S205 is the ONT, or the chip in the ONT. In the following, OLT and ONT are multiplexed-based The execution subject of the channel identification method is described as an example. As shown in Figure 2a, the method may include but is not limited to the following steps:

Step S201: The OLT generates multiple data streams, processes the multiple bit streams, and obtains a multiplexed bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first The indication information is used to determine the channel corresponding to the bit stream.

The multiple data streams generated by the OLT may include bit streams required by the ONT corresponding to the OLT. Specifically, the OLT may perform bit interleaving processing on multiple bit streams to obtain a multiplexed bit stream. For example, when the OLT generates 3 bit streams, all 3 bit streams include n bits, and the 3 bit streams are bit stream a(a1a2...an), bit stream b(b1b2...bn) and bit stream c(c1c2 …Cn), the schematic diagram of the scene of bit interleaving processing on 3 bit streams can be shown in Fig. 2b. It can be seen from Figure 2b that the multiplexed bit stream obtained after bit interleaving is: a1b1c1a2b2c2...anbncn.

In the embodiment of the present application, the OLT may include one or more chips. One chip can be used to generate bit streams corresponding to one or more channels. In the embodiment of the present application, the OLT includes multiple chips, and one chip is used to generate a bit stream corresponding to one channel as an example. When each chip in the OLT is synchronized, each chip can generate a bit stream synchronously. For example, when the OLT includes a chip a corresponding to bitstream a, a chip b corresponding to bitstream b, and a chip c corresponding to bitstream c, chip a generates a1 and chip in bitstream a. b generates b1 in bitstream b1 and chip c generates c1 in bitstream c at the same time. It should be noted that Fig. 2b is an example of synchronization between the chip used to generate bit stream a, the chip used to generate bit stream b, and the chip used to generate bit stream c. In other feasible implementation manners, the chip corresponding to bitstream a, the chip corresponding to bitstream b, and the chip corresponding to bitstream c may not be synchronized. For example, when the chip corresponding to bitstream a, the chip corresponding to bitstream b, and the chip corresponding to bitstream c are not synchronized, the bitstream a(a1a2...an), bitstream The multiplexed bit stream obtained by bit interleaving b(b1b2...bn) and bit stream c(c1c2...cn) can be: a1b3...c9a2b4...n10..., or aibj...ckai+1bj+1...ck+1... …. Among them, the synchronization between the various chips in the OLT has the same meaning as the channel alignment corresponding to each chip.

It should be noted that, compared with the bit stream before the bit interleaving processing, the bit stream after the bit interleaving processing (that is, the multiplexed bit stream) has a higher transmission rate. For example, if the OLT generates N bit streams, and the rate of each bit stream is 2.488 Gbps, the rate of the multiplexed bit stream obtained after bit interleaving is performed on the N bit streams is N*2.488 Gbps. Optionally, the bit stream before the bit interleaving processing may be referred to as a low-speed bit stream, and the bit stream after the bit interleaving processing may be referred to as a high-speed bit stream.

The first indication information included in each bit stream can be used to determine the channel corresponding to the bit stream. Different bit streams correspond to different channels, and the first indication information included in different bit streams can be used to determine different channels. By carrying the first indication information in each bit stream, the ONT can accurately determine the channel corresponding to the bit stream according to the first indication information in the bit stream.

Step S202: The OLT transmits the multiplexed bit stream to the ONT corresponding to the OLT.

Specifically, after obtaining the multiplexed bit stream, the OLT may transmit the multiplexed bit stream to each ONT corresponding to the OLT. In one implementation, the OLT may include a laser driver, a laser, and a combiner/demultiplexer. After obtaining the multiplexed bit stream, the OLT can transmit the multiplexed bit stream to the laser driver. After the laser driver receives the multiplexed bit stream, it can drive the laser to emit light and generate an optical signal. Then the combiner/demultiplexer can couple the optical signal carrying the multiplexed bit stream into the backbone fiber and transmit it to the ONT corresponding to the OLT via the backbone fiber.

Step S203: The ONT processes the multiplexed bit stream to obtain the aforementioned multiple bit stream.

Specifically, after the ONT receives the multiplexed bit stream from the OLT, it can perform bit de-interleaving processing on the multiplexed bit stream to recover the aforementioned multiple bit stream generated by the OLT. In an implementation manner, the ONT may include a multiplexer/demultiplexer. After the multiplexer/demultiplexer in the ONT receives the optical signal carrying the multiplexed bit stream from the backbone fiber, it can receive the multiplexed bit stream from the The multiplexed bit stream is separated from the optical signal.

In an implementation manner, the process of the ONT performing bit de-interleaving processing on the multiplexed bit stream may be: the ONT periodically extracts 1 bit from the multiplexed bit stream according to a fixed interval. When each bit stream generated by the OLT includes n bits, the bit stream composed of n bits sequentially extracted by the ONT may be the same as a bit stream generated by the OLT. Among them, the fixed period can be the same as the number of bit streams generated by the OLT. For example, the multiplexed bit stream is: a1b1c1a2b2c2...anbncn, and when the first bit extracted by the ONT is a1, and the fixed period is 3, the n bits extracted by the ONT in turn are a1a2...an, and a1a2...an constitute the bit stream a. After the ONT extracts a complete bit stream, it can start after the first bit extracted by the ONT, and periodically extract 1 bit from the multiplexed bit stream according to a fixed interval. That is, after the ONT extracts the bit stream a, it can start from b1 and periodically extract 1 bit from the multiplexed bit stream according to a fixed interval, and then extract the bit stream b. Correspondingly, after the ONT extracts the bit stream b, the bit stream c can be extracted from c1. It should be noted that in other feasible implementation manners, the ONT may start to extract bits from any bit in the multiplexed bit stream.

It should be noted that the above-mentioned ONT extracting bits from the first bit (a1) of the multiplexed bit stream is only for example, and does not constitute a limitation to the embodiment of the present application. Since the power-on time of the ONT is uncertain, the ONT can start the bit de-interleaving processing from any bit in the multiplexed bit stream, and the ONT cannot know from which bit it starts the bit de-interleaving processing. For example, when the ONT starts to extract bits from c2, the extracted three bit streams are: c2...cnc1, a3...an a1a2, b3...bn b1b2. That is, the power-on time of the ONT is uncertain, which may make the first bit stream (that is, bit stream c) obtained after bit deinterleaving not the first bit stream (that is, bit stream a) used when the OLT performs bit interleaving processing.

Step S204: The ONT determines the channel corresponding to the ONT.

In the embodiment of the present application, one ONT corresponds to one channel, and different ONTs correspond to different channels. By determining the channel corresponding to the ONT, the ONT can determine the required bit stream from the multiple bit streams, and the channel corresponding to the required bit stream is the same as the channel corresponding to the ONT.

In an implementation manner, the ONT may determine the channel corresponding to the ONT in the following manner: the ONT determines the first bitstream from multiple bitstreams; the first bitstream may also include the correspondence between the ONT identifier and the channel identifier Relationship: The ONT determines the channel corresponding to the ONT according to the correspondence between the ONT identification and the channel identification, and the identification of the ONT. Among them, ONT identification (identification, ID) is used to uniquely identify an ONT. The OLT can assign a unique ONT ID to each ONT according to the serial number (SN) of each ONT. The foregoing corresponding relationship may include the corresponding relationship between the identifier of each ONT corresponding to the OLT and the channel identifier. The ONT can obtain the corresponding relationship by analyzing the first bit stream, and then can find the target channel identifier corresponding to the ID of the ONT from the corresponding relationship, and the channel indicated by the target channel identifier is the channel corresponding to the ONT.

In the embodiment of the present application, part or all of the bit streams in the multi-channel bit stream may include the correspondence between the ONT identifier and the channel identifier. In an implementation manner, the ONT may correspond to a default channel; the information of the default channel corresponding to the ONT may be pre-configured in the ONT. In the case that the ONT corresponds to a default channel, the aforementioned first bit stream may be a bit stream corresponding to the default channel. In this case, other bit streams in the multi-channel bit stream except the first bit stream may not include the correspondence between the ONT identifier and the channel identifier. In an implementation manner, the default channel of each ONT corresponding to the OLT may be the same, so that each ONT can determine the channel corresponding to each ONT through the corresponding relationship carried in the first bit stream. In this way, it is beneficial to improve the utilization of the first bit stream. In an implementation manner, in the case that the ONT corresponds to a default channel, the ONT can access the default channel by default, communicate with the OLT through the bitstream corresponding to the default channel, and complete the registration and go online. After the ONT is registered and online, it can transmit data with the OLT through the default channel. After the ONT determines the channel (such as channel k) corresponding to the ONT through the corresponding relationship carried in the bit stream corresponding to the default channel, the ONT can switch from the default channel to the k channel. Correspondingly, the data transmission channel between the ONT and the OLT is changed from the default channel to the k channel.

In an implementation manner, the default channel may not be pre-configured for the ONT. In the case that the ONT does not correspond to the default channel, each bit stream in the aforementioned multi-channel bit stream may include the corresponding relationship between the aforementioned ONT identifier and the channel identifier. In this case, the ONT may include the multi-channel bit stream. Any bit stream of is determined as the first bit stream. In an implementation manner, when the ONT does not correspond to the default channel and the ONT corresponds to the k channel, the ONT may not need to access the default channel before accessing the k channel. In this way, on the one hand, the ONT does not need to access the default channel, but can also obtain the corresponding relationship between the ONT ID and the channel ID, and then determine the channel corresponding to the ONT; on the other hand, the ONT can transfer multiple bit streams to Any bit stream of is determined as the first bit stream. Therefore, in this way, it is beneficial to improve the efficiency of determining the channel corresponding to the ONT.

In an implementation manner, the first bit stream may include first broadcast information, the first broadcast information may include the aforementioned correspondence between the ONT identifier and the channel identifier, the first broadcast information is applicable to the ONT corresponding to the OLT, and the The ONT corresponding to the OLT includes the aforementioned ONT. Wherein, the correspondence between the ONT identifier and the channel identifier is included in the first broadcast information, and the first broadcast information is applicable to the ONT corresponding to the OLT, which can mean that each ONT corresponding to the OLT can receive the first broadcast information, After each ONT corresponding to the OLT receives the first broadcast information, it can parse the first broadcast information to obtain the corresponding relationship.

Taking the application of the embodiment of the present application to the GPON system as an example, the first broadcast information may be carried in the PLOAMd field in the GPON downlink frame. Figure 2c is a schematic diagram of the format of a GPON downstream frame. As shown in Figure 2c, the GPON downlink frame can be composed of a physical control block downstream (PCBd) and a payload (payload). Among them, PCBd can be operated by physical synchronization (psync), Ident, and physical layer. Management and maintenance (physical layer operations, administration and maintenance, PLOAMd), bit interleaved parity (BIP), downstream payload length (payload length downstream, Plend), upstream bandwidth map (upstream bandwidth map, US BWMap) composition. Among them, psync is used to synchronize the ONT with the OLT. ldent is used as a super frame indicator. When the ldent value is 0, it indicates the beginning of a super frame. PLOAMd is used to carry downlink ploam messages; BIP is a parity check code inserted between bits for error detection. Plend is used to describe the length of the US BWMap and the number of asynchronous transfer mode (ATM) cells in the payload. In order to enhance fault tolerance, Plend appears twice. The US BWMap field is used for uplink bandwidth allocation.

The first broadcast information may refer to the ploam message carried in the PLOAMd domain. The schematic diagram of the structure of the PLOAMd domain can be shown in Figure 2d. It can be seen from Figure 2d that the PLOAMd field can be composed of an optical network terminal identifier (ONT ID), a message identifier (message ID), a payload of the ploam message (Data), and a cyclic redundancy check (cyclic redundancy check, CRC). Among them, the ONT ID can be used to identify which ONT the ploam message applies to, that is, to which ONT the ploam message is sent. It should be noted that the ONT indicated by the ONT ID can parse the ploam message carried in the PLOAMd domain. For example, when the value of ONT ID is 0xFF, it can indicate that the ploam message is applicable to all ONTs corresponding to the OLT. The message ID can represent different message types. The message type may include, but is not limited to, the first broadcast information and the second broadcast information below. The payload of the ploam message may include the aforementioned correspondence between the ONT identifier and the channel identifier. The CRC is the check sequence of other fields in the PLOAMd field except the CRC.

It should be noted that when the embodiments of this application are applied to a passive optical network system in the ITU-T system (such as GPON, XG-PON, XGS-PON or TWDM PON), the first broadcast information can be the current application The ploam message carried in the downlink frame of the system. When the embodiment of this application is applied to a passive optical network system in the IEEE system (such as EPON, 10G-EPON), the first broadcast information may be carried in a multi-point control protocol (multi-point control protocol, MPCP) frame The broadcast message may be an operation administration and maintenance (OAM) message.

In one implementation, the ONT may include a laser. The laser is used to generate an optical signal carrying upstream data, which is the data sent by the ONT to the OLT. The wavelengths of the optical signals generated by the lasers in different ONTs are different. After the ONT determines the channel corresponding to the ONT, it may determine the wavelength corresponding to the laser in the ONT according to the corresponding relationship between the channel and the wavelength. Among them, the corresponding relationship between the channel and the wavelength can be pre-configured or cured in the ONT.

Step S205: The ONT determines a target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the ONT.

Specifically, after the ONT obtains multiple bit streams and determines the channel (such as channel k) corresponding to the ONT, it can determine the target bit stream corresponding to channel k from the multiple bit streams. In this way, it is beneficial for the ONT to obtain the required target bit stream.

In the embodiment of the present application, by carrying the first indication information in each bit stream, the ONT can accurately determine the channel corresponding to the bit stream according to the first indication information in the bit stream. Further, it is beneficial for the ONT to obtain the required target bit stream.

Please refer to Figure 3. Figure 3 is a schematic flow diagram of another multiplexing-based channel identification method provided by an embodiment of the present application. In the Data) field, how does the ONT determine the channel corresponding to the second bit stream according to the first indication information included in the second bit stream. Among them, the execution subject of step S301 to step S302 is the OLT, or the chip in the OLT, and the execution subject of step S303 to step S306 is the ONT, or the chip in the ONT. In the following, OLT and ONT are the multiplexing-based The execution subject of the channel identification method is described as an example. The method may include but is not limited to the following steps:

Step S301: The OLT generates multiple data streams, processes the multiple bit streams, and obtains a multiplexed bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, the first The indication information is used to determine the channel corresponding to the bit stream.

In an implementation manner, for each bitstream in the multiple bitstreams, the bitstream may include second broadcast information, the second broadcast information may include the first indication information in the bitstream, and the second broadcast The information is applicable to the ONT corresponding to the OLT, and the ONT corresponding to the OLT includes the ONT in step S303. Wherein, the first indication information is included in the second broadcast information, and the second broadcast information is applicable to the ONT corresponding to the OLT, which can mean that each ONT corresponding to the OLT can receive the second broadcast information, and each ONT corresponding to the OLT receives the second broadcast information. After the second broadcast information, the second broadcast information can be analyzed to obtain the first indication information in the second broadcast information.

In an implementation manner, when the embodiments of this application are applied to a passive optical network system (such as GPON, XG-PON, XGS-PON or TWDM PON) in the ITU-T system, the second broadcast information may be the current one. The ploam message carried in the downlink frame of the application system. When the embodiment of the present application is applied to a passive optical network system in the IEEE system (such as EPON, 10G-EPON), the second broadcast information may be a broadcast message carried in an MPCP frame or an OAM message.

It should be noted that the PLOAMd field in an ITU-T system downlink frame can carry one or more ploam messages, and an IEEE system downlink frame can carry one or more broadcast messages, or one IEEE system downlink frame can carry one or more broadcast messages. Carry one or more OAM messages. Therefore, the first broadcast information and the second broadcast information may be carried in the same frame or in different frames. Taking the first broadcast information and the second broadcast information carried in the same GPON frame as an example, the first broadcast information and the second broadcast information can be distinguished by the message ID in the PLOAMd field. When the first broadcast information and the second broadcast information are carried in different frames, for the OLT, the sending time of the downlink frame carrying the first broadcast information may be earlier than the sending time of the downlink frame carrying the second broadcast information. Correspondingly, for the ONT, the receiving time of the downlink frame carrying the first broadcast information may be earlier than the receiving time of the downlink frame carrying the second broadcast information. In the embodiment of the present application, one GPON downstream frame may carry one ploam message, and one XG-PON, XGS-PON or TWDM PON downstream frame may carry multiple ploam messages.

In an implementation manner, for each bit stream in the multiple bit stream, the bit stream may be composed of multiple data frames, and some or all of the multiple data frames may include the second broadcast information , The bitstream may include one or more second broadcast information. Specifically, when each bit stream generated by the OLT consists of multiple data frames, each frame may carry the second broadcast information; or, every preset number of frames may carry the second broadcast information; or , One or several frames can be randomly selected to carry the second broadcast information. When a bit stream carries multiple second broadcast information, it helps to ensure that the ONT can successfully obtain the second broadcast information.

For example, when the bit stream a is composed of a downlink data frame 1, a downlink data frame 2, and a downlink data frame 3, and the downlink data frame 1, the downlink data frame 2 and the downlink data frame 3 all carry the second broadcast information, if the ONT The first bit of the bit stream a obtained after processing the received multiplexed bit stream belongs to the downlink data frame 2, then the ONT can determine the corresponding bit stream a through the second broadcast information carried in the downlink data frame 2 Channel. If only the downlink data frame 1 of the downlink data frames constituting the bit stream a carries the second broadcast information, the ONT can only determine the channel corresponding to the bit stream a through the second broadcast information carried in the downlink data frame 1. By carrying multiple second broadcast information in a bit stream, it is beneficial to improve the efficiency of the ONT in determining the channel corresponding to the bit stream.

For another example, if the ONT starts to analyze from the middle of a certain frame, because it starts to analyze from the middle of the frame, it may cause the ONT to miss the second broadcast information carried in the frame. At this time, if a bit stream carries multiple second broadcast information, the ONT can parse the subsequent frames to obtain the second broadcast information. In this way, even if the first bit stream obtained after bit de-interleaving is not the first bit stream used by the OLT for bit interleaving due to the uncertain power-on time of the ONT, or the channels corresponding to the OLT are not Alignment, the ONT can also successfully obtain the second broadcast information, and then successfully determine the channel corresponding to the bit stream.

Step S302: The OLT transmits the multiplexed bit stream to the ONT corresponding to the OLT.

Step S303: The ONT processes the multiplexed bit stream to obtain the aforementioned multiple bit stream.

It should be noted that, for the execution process of step S301 to step S303, please refer to the specific description of step S201 to step S203 in FIG. 2a, respectively, which will not be repeated here.

Step S304: The ONT determines the channel corresponding to the second bit stream according to the first indication information included in the second bit stream; the second bit stream is any one of the multiple bit streams.

Specifically, after the ONT obtains the multiple bitstreams, it can determine the channel corresponding to a certain bitstream (that is, the second bitstream) in the multiple bitstream to determine whether the channel corresponding to the bitstream is the same as the channel corresponding to the ONT . The second bit stream may be the first bit stream obtained after the ONT performs bit deinterleaving, or any bit stream.

In the embodiment of the present application, the first indication information may be carried in the payload (Data) field of the ploam message in the PLOAMd field. The value of the Data field can indicate the channel corresponding to the bit stream. For example, if the value of the Data field is 0x00, it can indicate that the bit stream corresponds to the 0th channel; if the value of the Data field is 0x01, it can indicate that the bit stream corresponds to the 1st channel.

Step S305: The ONT determines the channel corresponding to the ONT.

It should be noted that, for the execution process of step S305, refer to the specific description of step S204 in FIG. 2a, which will not be repeated here.

Step S306: If the channel corresponding to the second bitstream is different from the channel corresponding to the ONT, the ONT determines the target bitstream from the multiple bitstream; the channel corresponding to the target bitstream is the same as the channel corresponding to the ONT.

In the embodiment of this application, if the channel corresponding to the second bit stream is different from the channel corresponding to the ONT, it can indicate that the second bit stream is not the bit stream required by the ONT. In this case, the ONT can trigger the slave multi-channel bit stream. Steps in the stream to determine the target bitstream. In an implementation manner, if the channel corresponding to the second bit stream is the same as the channel corresponding to the ONT, it can indicate that the second bit stream is the bit stream required by the ONT (that is, the target bit stream). It should be noted that, for the execution process of the ONT determining the target bit stream from the multi-channel bit stream in step S306, refer to the specific description of step S205 in FIG. 2a, which will not be repeated here.

In an implementation manner, the positions of the bit streams in the multiple bit streams may have an order relationship. For example, if the OLT performs bit interleaving in the order of bit stream a, bit stream b, and bit stream c, and after the ONT performs bit de-interleaving, the first bit stream obtained is bit stream a, it can indicate bit de-interleaving The second bit stream and the third bit stream obtained after processing are bit stream b and bit stream c, respectively. If the ONT performs bit de-interleaving processing and the first bit stream obtained is bit stream b, it can indicate that the second bit stream and the third bit stream obtained after the bit de-interleaving processing are bit stream c and bit stream respectively. a. After the ONT performs bit de-interleaving processing, the first bit stream obtained is bit stream c, which can indicate that the second bit stream and the third bit stream obtained after the bit de-interleaving processing are bit stream a and bit stream b. .

In the embodiment of the present application, the positions of the bit streams in the multiple bit streams have an order relationship, where the order relationship between the positions of the bit streams may refer to the order of the bit streams obtained after ONT bit de-interleaving. For example, if the bit stream obtained after the bit deinterleaving processing is bit stream b, bit stream c, and bit stream a in order, it can be determined that bit stream b is before bit stream c and bit stream a is after bit stream c. In an implementation manner, the ONT may sequentially store multiple bit streams obtained after bit de-interleaving processing into the memory. At this time, the order relationship between the positions of the bit streams may refer to the storage positions of the bit streams in the memory. The order relationship. The storage location of each bit stream in the memory is related to the number of streams obtained after the bit stream is bit de-interleaved. The memory may include volatile memory (volatile memory), such as random access memory (RAM). It may also include non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (solid-state drive). state drive, SSD.

In an implementation manner, the ONT may determine the target bitstream from the multiple bitstreams in the following manner: determine the position information of the target bitstream relative to the second bitstream according to the channel corresponding to the second bitstream and the channel corresponding to the ONT ; According to the position information of the target bit stream relative to the second bit stream, the target bit stream is determined from the multiple bit streams. For example, when the OLT performs bit interleaving in the order of bit stream a, bit stream b, and bit stream c, bit stream a, bit stream b, and bit stream c correspond to channel 1, channel 2, and channel 3 respectively, and the second bit When the stream corresponds to channel 2 and the ONT corresponds to channel 3, the ONT can determine that the bit stream corresponding to channel 3 (that is, the target bit stream) is the next bit stream after the second bit stream.

In an implementation manner, after the ONT determines the channel corresponding to the second bit stream, it can determine the multi-channel bit stream according to the order relationship between the positions of the bit stream in the multi-channel bit stream and the channel corresponding to the second bit stream. Channels corresponding to other bitstreams except the second bitstream. For example, if the second bit stream corresponds to channel 2, the ONT may determine that the next bit stream after the second bit stream corresponds to channel 3, and the second bit stream after the second bit stream corresponds to channel 1.

In the embodiment of the present application, after the channel corresponding to the second bit stream is determined according to the first indication information in the second bit stream, the target bit stream required by the ONT can be determined according to the channel corresponding to the second bit stream.

Please refer to FIG. 4, which is a schematic flowchart of another multiplexing-based channel identification method provided by an embodiment of the present application. The method describes in detail that the first indication information is the frame header information of the data frame constituting the bit stream. How does the ONT determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream. Among them, the execution subject of steps S401 to S402 is the OLT, or the chip in the OLT, and the execution subject of steps S403 to S407 is the ONT, or the chip in the ONT. In the following, the OLT and ONT are multiplexed-based The execution subject of the channel identification method is described as an example. The method may include but is not limited to the following steps:

Step S401: the OLT generates multiple data streams, processes the multiple bit streams, and obtains a multiplexed bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first The indication information is used to determine the channel corresponding to the bit stream.

In an implementation manner, for each bit stream in the multiple bit stream, the bit stream may be composed of multiple data frames, and the first indication information included in the bit stream may be any data in the multiple data frames. The frame header information of the frame; the frame header information used to compose the data frames of different bit streams can be different.

Each data frame includes frame header information. The frame header information is carried in the physical synchronization (psync) field in the GPON downstream frame structure shown in FIG. 2c. The header information of the data frames used to compose the same bit stream is the same, and the header information of the data frames used to compose different bit streams can be different. For example, the frame header information used to compose the data frames of bit stream a, bit stream b, and bit stream c may be psync1, psync2, and psync3, respectively. When the frame header information of the data frames used to compose different bit streams is different, the ONT may determine the channel corresponding to the bit stream according to the frame header information of the data frame of the bit stream. Compared with parsing the second broadcast information (ie ploam message), the ONT determines the frame header information of the data frame faster. Therefore, determining the channel corresponding to the bit stream through the frame header information is beneficial to improve the determination of the channel corresponding to the bit stream. efficient.

It should be noted that the above-mentioned frame header information is carried in the physical synchronization (psync) field in the GPON downlink frame structure shown in FIG. 2c, which is only used as an example and does not constitute a limitation to the embodiment of the present application. When the embodiments of this application are applied to EPON, 10G-EPON, XG-PON, XGS-PON systems or TWDM PON, the frame header information can be carried in the physical synchronization (psync) field in the downstream frame of the currently applied system.

Step S402: the OLT transmits the multiplexed bit stream to the ONT corresponding to the OLT.

Step S403: The ONT processes the multiplexed bit stream to obtain the aforementioned multiple bit stream.

It should be noted that, for the execution process of step S401 to step S403, please refer to the specific description of step S201 to step S203 in FIG. 2a, respectively, which will not be repeated here.

Step S404: The ONT determines the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream; the second bit stream is any bit stream in the multiple bit stream.

When the first indication information in the bit stream (such as the second bit stream) is the header information of the data frame that composes the bit stream, the ONT can determine the information in the bit stream according to the correspondence between the header information and the channel. The channel indicated by the header information. When the correspondence between the frame header information and the channel is shown in Table 1, if the ONT recognizes that the frame header information of a data frame of a bit stream is psync2, the ONT can determine that the bit stream corresponds to channel 2. Wherein, the second bit stream may be the first bit stream obtained after bit deinterleaving by the ONT, or any bit stream.

Table 1 Correspondence between frame header information and channel

帧头信息Header information	通道aisle
psync1psync1	通道1Channel 1
psync2psync2	通道2Channel 2
psync3psync3	通道3Channel 3

In an implementation manner, the ONT may determine the channel corresponding to each bit stream in the multi-channel bit stream in the following manner: For each bit stream in the multi-channel bit stream, the ONT may determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the bit stream To determine the channel corresponding to the bitstream. That is, the ONT can determine the channel corresponding to each bit stream by identifying the frame header information in each bit stream.

In an implementation manner, the ONT may also determine the channel corresponding to each bit stream in the multi-channel bit stream in the following manner: the ONT determines the channel corresponding to the second bit stream according to the first indication information included in the second bit stream ; For each bit stream in the multi-channel bit stream except the second bit stream, the channel corresponding to each bit stream except the second bit stream is determined according to the channel corresponding to the second bit stream.

Specifically, the positions of the bitstreams in the multiple bitstreams may have an order relationship. For a specific description of the order relationships between the positions of the bitstreams in the multiple bitstreams, please refer to step S306 in FIG. 3, which will not be repeated here. . After the ONT determines the channel corresponding to the second bitstream, it can determine the multiple bitstreams other than the second bitstream according to the order relationship between the positions of the bitstreams in the multiple bitstreams and the channels corresponding to the second bitstream The channel corresponding to the other bitstreams. For example, if the second bit stream corresponds to channel 2, the ONT may determine that the next bit stream after the second bit stream corresponds to channel 3, and the second bit stream after the second bit stream corresponds to channel 1. For example, when the OLT performs bit interleaving in the order of bit stream a, bit stream b, and bit stream c, bit stream a, bit stream b, and bit stream c correspond to channel 1, channel 2, and channel 3 respectively, and the second bit When the stream corresponds to channel 2, the ONT can determine that the next bit stream after the second bit stream corresponds to channel 3, and the second bit stream after the second bit stream corresponds to channel 1.

Step S405: The ONT determines the first bit stream from the multiple bit streams; the first bit stream also includes the correspondence between the ONT identifier and the channel identifier.

In an implementation manner, the corresponding relationship between the ONT identifier and the channel identifier is included in the first broadcast information. When the embodiment of this application is applied to a passive optical network system in the ITU-T system (such as GPON, XG-PON, XGS-PON or TWDM PON), the first broadcast information may refer to the downstream frame of the currently applied system The carried ploam message. When the embodiment of the present application is applied to a passive optical network system in the IEEE system (such as EPON, 10G-EPON), the first broadcast information may refer to the broadcast message or OAM message carried in the downlink frame of the currently applied system. The ONT needs to parse the ploam message (or the broadcast message or OAM message carried in the downlink frame) to obtain the correspondence between the ONT identifier and the channel identifier.

In an implementation manner, the ONT may include a processing module, and the processing module may be used to parse the first broadcast information. However, in actual situations, the processing module may only have the ability to analyze the data frame corresponding to the preset frame header information, and then analyze the first broadcast information in the data frame. In other words, the processing module may not have the ability to analyze data frames corresponding to non-preset frame header information. In order to successfully parse the corresponding relationship between the ONT identifier and the channel identifier in the first broadcast information, the ONT can obtain the capability information of the processing module; if the capability information indicates that the processing module does not have the capability to parse the first bit stream Data frame header information, the ONT can convert the header information of the data frame used to compose the first bit stream, and the processing module has the ability to parse the converted data frame used to compose the first bit stream The ability of the frame header information. In this way, it can be ensured that the ONT can resolve the correspondence between the ONT identifier and the channel identifier. For example, when the preset frame header information is psync and the frame header information of the data frame of the first bit stream is psync_1, the ONT may convert the frame header information from psync_1 to psync.

In an implementation manner, if the capability information indicates that the processing module has the ability to parse the header information of the data frame used to compose the first bit stream, the ONT may not be able to correct the data frame used to compose the first bit stream. The header information of the frame is converted. Among them, the processing module may refer to a media access control (medium access control, MAC) processing chip in the ONT.

In an implementation manner, the foregoing specific implementation manner for the OLT to generate multiple data streams may be: the OLT generates multiple original data streams; If the frame header information is the same, the OLT converts the frame header information of the data frame used to form each original data stream in the multiple original data streams to obtain the multiple data streams. If the frame header information of the data frames used to compose each original data stream is the same, the frame header information cannot be used to indicate the channel corresponding to the data stream. At this time, the ONT converts the frame header information of the data frame used to compose each original data stream, so that the converted frame header information of the data frame used to compose each original data stream can be different. The header information indicates the channel corresponding to the data stream.

Step S406: The ONT determines the channel corresponding to the ONT according to the correspondence between the ONT identification and the channel identification, and the identification of the ONT.

It should be noted that, for the execution process of step S405 to step S406, please refer to the specific description of step S204 in FIG. 2a, which will not be repeated here.

Step S407: The ONT determines a target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the ONT.

It should be noted that, for the execution process of step S407, refer to the specific description of step S205 in FIG. 2a, which will not be repeated here.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams may have an order relationship. For a detailed description of the order relationships between the positions of the bitstreams in the multiple bitstream, please refer to step S306 in FIG. 3. I won't repeat it here. In an implementation manner, the ONT may determine the target bitstream from the multiple bitstreams in the following manner: determine the position information of the target bitstream relative to the first bitstream according to the channel corresponding to the first bitstream and the channel corresponding to the ONT ; According to the position information of the target bit stream relative to the first bit stream, the target bit stream is determined from the multiple bit streams. For example, when the OLT performs bit interleaving in the order of bit stream a, bit stream b, and bit stream c, bit stream a, bit stream b, and bit stream c correspond to channel 1, channel 2, and channel 3 respectively, and the first bit When the stream corresponds to channel 2 and the ONT corresponds to channel 3, the ONT can determine that the bit stream corresponding to channel 3 (that is, the target bit stream) is the next bit stream after the second bit stream.

After the ONT determines the required target bit stream, it needs to send the target bit stream to the processing module. The processing module can parse the target bit stream or forward the target bit stream to other devices. It can be known from step S405 that in order to obtain the correspondence between the ONT identifier and the channel identifier, the ONT parses the first bit stream. That is, before determining the target bit stream, the ONT has sent the first bit stream to the processing module. In this case, if the channel corresponding to the first bit stream is the same as the channel corresponding to the ONT, it indicates that the target bit stream required by the ONT is the first bit stream. The ONT does not need to send the target bit stream to the processing module again. In an implementation manner, if the channel corresponding to the first bit stream is different from the channel corresponding to the ONT, it indicates that the first bit stream is not the target bit stream required by the ONT. In this case, the ONT can trigger the step of determining the target bitstream from the multiple bitstreams.

In the embodiment of the present application, the first indication information may be frame header information of the data frame constituting the bit stream. Since the ONT determines the frame header information of the data frame faster, the frame header information used to compose the data frame of the bit stream helps to improve the efficiency of the channel corresponding to the bit stream.

The foregoing describes in detail the method provided in the embodiment of the present application, and the device of the embodiment of the present application will be provided below.

Please refer to FIG. 5, which is a schematic structural diagram of a communication device 50 according to an embodiment of this application. The communication device 50 shown in FIG. 5 may include a communication module 501 and a processing module 502. The communication module 501 may include a sending module and/or a receiving module. The sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the communication module 501 may realize the sending function and/or the receiving function. The communication module can also be described as a transceiver module.

The communication device 50 may be an ONT, a device in the ONT, or a device that can be matched and used with the ONT.

The communication module 501 is configured to receive the multiplexed bit stream from the optical line terminal OLT;

The processing module 502 is configured to process the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first indication information is used to determine The channel corresponding to the bitstream;

The processing module 502 is further configured to determine a channel corresponding to the communication device 50; determine a target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the communication device 50.

In an implementation manner, when the processing module 502 is used to determine the channel corresponding to the communication device 50, it can be specifically used to determine a first bit stream from multiple bit streams; the first bit stream also includes the communication device identifier and the channel Correspondence between the identifications; according to the correspondence between the communication device identification and the channel identification, and the identification of the communication device 50, determine the channel corresponding to the communication device 50.

In an implementation manner, the communication device 50 corresponds to a default channel; the first bit stream is a bit stream corresponding to the default channel.

In an implementation manner, the communication device 50 does not correspond to a default channel; when the processing module 502 is used to determine the first bit stream from the multiple bit streams, it is specifically used to: determine any one of the multiple bit streams It is the first bit stream; each bit stream in the multi-channel bit stream includes the corresponding relationship between the aforementioned communication device identifier and the channel identifier.

In an implementation manner, the first bitstream may include first broadcast information, the first broadcast information includes the aforementioned correspondence between the communication device identifier and the channel identifier, and the first broadcast information is applicable to the communication device corresponding to the OLT, The communication device corresponding to the OLT includes a communication device 50.

In an implementation manner, the processing module 502 may be further configured to determine the channel corresponding to the second bit stream according to the first indication information included in the second bit stream; the second bit stream is any of the foregoing multiple bit streams. One bit stream; if the channel corresponding to the second bit stream is different from the channel corresponding to the communication device 50, the step of determining the target bit stream from the foregoing multiple bit streams is triggered.

In an implementation manner, the positions of the bit streams in the foregoing multiple bit streams may have a sequential relationship; when the processing module 502 is used to determine the target bit stream from the multiple bit streams, it may be specifically used to: according to the second bit stream The channel corresponding to the stream and the channel corresponding to the communication device 50 determine the position information of the target bit stream relative to the second bit stream; according to the position information of the target bit stream relative to the second bit stream, the target is determined from the multiple bit streams Bitstream.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable For the communication device corresponding to the OLT, the communication device corresponding to the OLT includes the communication device 50.

In an implementation manner, the processing module 502 may be composed of a routing unit 5021 and a processing unit 5022. Wherein, the routing unit 5021 can be used to determine the second bit stream from the multiple bit streams, and transmit the second bit stream to the processing unit 5022; for each bit stream in the multiple bit stream, the bit stream Including first indication information, where the first indication information is used to determine the channel corresponding to the bit stream; the second bit stream is any one of the multiple bit streams;

The processing unit 5022 is configured to determine the channel corresponding to the second bit stream according to the first indication information in the second bit stream (see step S304); determine the channel corresponding to the communication device 50, if the second bit stream corresponds to If the channel is different from the channel corresponding to the communication device 50, the second instruction information is sent to the routing unit 5021, and the second instruction information is used to determine the target bit stream;

The routing unit 5021 is further configured to determine the target bit stream from the multiple bit streams according to the second indication information, and transmit the target bit stream to the processing unit 5022; the channel corresponding to the target bit stream and the communication device 50 The corresponding channels are the same.

In an implementation manner, the processing module 502 may further include a demultiplexing unit 5023. The communication module 501 may be used to receive the multiplexed bit stream from the OLT. The demultiplexing unit 5023 may be used to process the multiplexed bit stream to obtain multiple bit streams. The routing unit 5021 can be used to determine any one of the multiple bit streams as the second bit stream, or the routing unit 5021 can be used to obtain the result obtained after the demultiplexing unit 5023 processes the multiplexed bit stream. The first bit stream is determined to be the second bit stream. The routing unit 5021 transmits the second bit stream to the processing unit 5022, so that the processing unit 5022 determines the channel corresponding to the second bit stream according to the first indication information in the second bit stream.

If the channel corresponding to the second bit stream is different from the channel corresponding to the communication device 50, it can indicate that the second bit stream is not the bit stream required by the communication device 50, and the processing unit 5022 sends second indication information to the routing unit 5021 for selection. The path unit 5021 determines the target bit stream from the multiple bit streams according to the second indication information. The target bit stream is a bit stream required by the communication device 50. In an implementation manner, if the channel corresponding to the second bit stream is the same as the channel corresponding to the communication device 50, it can indicate that the second bit stream is the bit stream required by the communication device 50 (that is, the target bit stream). At this time, the processing unit 5022 may not send the second instruction information to the routing unit 5021.

The routing unit 5021 may also be used to transmit the target bit stream to the processing unit 5022. In an implementation manner, the processing unit 5022 can also be used to process the target bit stream, or the processing unit 5022 can also be used to call the communication module 501, and the communication module 501 can be used to transmit the target bit stream to other equipment.

In an implementation manner, the first bit stream in the multi-channel bit stream may further include a correspondence between the communication device identifier and the channel identifier. The routing unit 5021 may also be used to determine the first bit stream from the multiple bit streams (see step S204), and transmit the first bit stream to the processing unit 5022. The processing unit 5022 may also be configured to analyze the first bit stream from the routing unit 5021 to obtain the correspondence between the communication device identifier and the channel identifier carried in the first bit stream. When the processing unit 5022 is used to determine the channel corresponding to the communication device 50, it can be specifically used to determine the channel corresponding to the communication device 50 according to the correspondence between the communication device identifier and the channel identifier, and the identifier of the communication device 50. When the communication device 50 is an ONT and the communication device identification is an ONT identification, the processing unit 5022 is used to determine the execution process of the channel corresponding to the communication device 50 according to the correspondence between the communication device identification and the channel identification, and the identification of the communication device 50 Please refer to the detailed description of step S204 in FIG. 2a, which will not be repeated here.

In an implementation manner, the communication device 50 does not correspond to a default channel; when the routing unit 5021 is used to determine the first bit stream from the multiple bit streams, it is specifically used to: It is determined to be the first bit stream (see step S204); each bit stream in the multi-channel bit stream includes the corresponding relationship between the aforementioned communication device identifier and the channel identifier.

In an implementation manner, the second indication information may include the identifier of the channel corresponding to the second bit stream and the identifier of the channel corresponding to the communication device 50; the routing unit 5021 is configured to determine from the multiple bit streams according to the second indication information The target bitstream may be specifically used to determine the target bitstream from the multiple bitstreams according to the identifier of the channel corresponding to the second bitstream and the identifier of the channel corresponding to the communication device 50. In an implementation manner, the positions of the bit streams in the multiple bit streams may have an order relationship. After the routing unit 5021 determines the channel corresponding to the second bit stream according to the second indication information, it may determine the multi-channel bit according to the order relationship between the positions of the bit stream in the multi-channel bit stream and the channel corresponding to the second bit stream. Channels corresponding to other bit streams in the stream except the second bit stream.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams may have an order relationship, and the second indication information may include position information of the target bitstream relative to the second bitstream; the routing unit 5021 is configured to When the instruction information determines the target bit stream from the multiple bit streams, it is specifically used to determine the target bit stream from the multiple bit streams according to the position information of the target bit stream relative to the second bit stream (see step S306).

It should be noted that the content not mentioned in the embodiment corresponding to FIG. 5 and the specific implementation of the steps of each module can refer to the embodiment shown in FIGS. 2a to 3 and the foregoing content, which will not be repeated here.

Please refer to FIG. 6, which is a schematic structural diagram of another communication device 60 according to an embodiment of the application. The communication device 60 shown in FIG. 6 may include a processing module 601 and a communication module 602. The communication module 602 may include a sending module and/or a receiving module. The sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the communication module 602 may realize the sending function and/or the receiving function. The communication module can also be described as a transceiver module.

The communication device 60 may be an OLT, a device in the OLT, or a device that can be matched and used with the OLT.

The processing module 601 is configured to generate multiple data streams, process the multiple bit streams to obtain a multiplexed bit stream; for each bit stream in the multiple bit streams, the bit stream includes the first indication information, the The first indication information is used to determine the channel corresponding to the bit stream;

The communication module 602 is configured to transmit the multiplexed bit stream to the optical network terminal ONT corresponding to the communication device 60.

In an implementation manner, the first bit stream includes first broadcast information, the first broadcast information includes a correspondence between an ONT identifier and a channel identifier, and the first broadcast information is applicable to the ONT corresponding to the communication device 60.

In an implementation manner, for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, the second broadcast information includes the first indication information in the bit stream, and the second broadcast information is applicable ONT corresponding to the communication device 60.

In an implementation manner, the processing module 601 may be composed of a processing unit 6011 and a multiplexing unit 6012. The processing unit 6011 is configured to generate multiple bit streams and transmit the multiple bit streams to the multiplexing unit 6012; for each bit stream in the multiple bit streams, the bit stream includes the first indication information, the The first indication information is used to determine the channel corresponding to the bit stream.

In an implementation manner, the first bit stream in the multi-channel bit stream may further include a corresponding relationship between the ONT identifier and the channel identifier. The multiplexing unit 6012 is used to process the multiple data streams to obtain a multiplexed bit stream. The communication module 602 is used to transmit the multiplexed bit stream to the ONT.

It should be noted that the content not mentioned in the embodiment corresponding to FIG. 6 and the specific implementation of the steps of each module can refer to the embodiment shown in FIG. 2a to FIG. 3 and the foregoing content, and will not be repeated here.

Please refer to FIG. 7, which is a schematic structural diagram of another communication device 70 according to an embodiment of the application. The communication device 70 shown in FIG. 7 may include a communication module 701 and a processing module 702. The communication module 701 may include a sending module and/or a receiving module. The sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the communication module 701 may realize the sending function and/or the receiving function. The communication module can also be described as a transceiver module.

The communication device 70 may be an ONT, a device in the ONT, or a device that can be matched and used with the ONT.

The communication module 701 is configured to receive the multiplexed bit stream from the optical line terminal OLT;

The processing module 702 is configured to process the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first indication information is used to determine the The channel corresponding to the bitstream;

The processing module 702 is further configured to determine a channel corresponding to the communication device 70; determine a target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the communication device 70.

In an implementation manner, when the processing module 702 is used to determine the channel corresponding to the communication device 70, it can be specifically used to determine a first bit stream from multiple bit streams; the first bit stream also includes the communication device identifier and the channel Correspondence between the identifications; according to the correspondence between the communication device identification and the channel identification, and the identification of the communication device 70, determine the channel corresponding to the communication device 70.

In an implementation manner, the communication device 70 corresponds to a default channel; the first bit stream is a bit stream corresponding to the default channel.

In an implementation manner, the communication device 70 does not correspond to a default channel; when the processing module 702 is used to determine the first bit stream from the multiple bit streams, it is specifically used to: determine any one of the multiple bit streams It is the first bit stream; each bit stream in the multi-channel bit stream includes the corresponding relationship between the aforementioned communication device identifier and the channel identifier.

In an implementation manner, the first bitstream may include first broadcast information, the first broadcast information includes the aforementioned correspondence between the communication device identifier and the channel identifier, and the first broadcast information is applicable to the communication device corresponding to the OLT, The communication device corresponding to the OLT includes a communication device 70.

In an implementation manner, the processing module 702 may also be used to determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream; the second bit stream is a multi-channel bit stream. Any bit stream in the bit stream.

In an implementation manner, when the processing module 702 is configured to determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream, it can be specifically used to: For each bit stream in the bit stream, the channel corresponding to the bit stream is determined according to the first indication information included in the bit stream.

In an implementation manner, when the processing module 702 is configured to determine the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream, it can be specifically used to: according to the second bit stream The included first indication information determines the channel corresponding to the second bit stream; for each bit stream in the multi-channel bit stream except the second bit stream, the bit stream is determined according to the channel corresponding to the second bit stream Corresponding channel.

In an implementation manner, the processing module 702 may also be used to trigger the step of determining the target bit stream from the multiple bit streams if the channel corresponding to the first bit stream is different from the channel corresponding to the communication device 70.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams have an order relationship; when the processing module 702 determines the target bitstream from the multiple bitstreams, it can be specifically used to: according to the channel corresponding to the first bitstream The channel corresponding to the communication device 70 determines the location information of the target bit stream relative to the first bit stream; and determines the target bit stream from the multiple bit streams according to the location information of the target bit stream relative to the first bit stream.

In an implementation manner, the processing module 702 may also be used to obtain capability information of the processing module 702; if the capability information indicates that the processing module 702 does not have the capability to parse the header information of the data frame used to compose the first bit stream Ability to convert the header information of the data frame used to compose the first bit stream, and the processing module 702 has the ability to analyze the converted header information of the data frame used to compose the first bit stream.

In an implementation manner, the processing module 702 may be composed of a demultiplexing unit 7021 and a processing unit 7022. Among them, the demultiplexing unit 7021 is used to obtain a multiplexed bit stream, and process the multiplexed bit stream to obtain a multiple bit stream (see step S203); for each bit stream in the multiple bit stream, the The bit stream includes first indication information, and the first indication information is used to determine the channel corresponding to the bit stream; the communication module 701 may be used to receive the multiplexed bit stream from the OLT;

The demultiplexing unit 7021 is further configured to determine the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream in the multiple bit stream (see step S404); The first bit stream is determined in the bit stream (see step S204); the first bit stream is transmitted to the processing unit 7022; the first bit stream also includes the correspondence between the communication device identifier and the channel identifier; the second bit stream is multiple Any bit stream in the bit stream;

The processing unit 7022 is configured to determine the channel corresponding to the communication device 70 according to the correspondence between the communication device identifier and the channel identifier, and the identifier of the communication device 70; send second indication information to the demultiplexing unit 7021, the second The indication information is used to determine the target bit stream; the target bit stream is the bit stream required by the communication device 70; the processing unit 7022 can also be used to parse the first bit stream from the demultiplexing unit 7021 to obtain the first bit stream Correspondence between the carried communication device identifier and the channel identifier;

The demultiplexing unit 7021 is further configured to determine the target bit stream from the multiple bit streams according to the second indication information, and transmit the target bit stream to the processing unit 7022; the channel corresponding to the target bit stream corresponds to the communication device 70 The channels are the same. In an implementation manner, the processing unit 7022 can also be used to process the target bit stream, or the processing unit 7022 can also be used to call the communication module 701, and the communication module 701 can also be used to transmit the target bit stream to other devices.

In an implementation manner, the communication device 70 corresponds to a default channel; the first bit stream may be a bit stream corresponding to the default channel.

In an implementation manner, the communication device 70 does not correspond to a default channel; when the demultiplexing unit 7021 is used to determine the first bit stream from the multiple bit streams, it is specifically used to: The stream is determined to be the first bit stream (see step S204); each bit stream in the multi-channel bit stream includes the correspondence between the aforementioned communication device identifier and the channel identifier.

In one implementation, the demultiplexing unit 7021 is further configured to send third indication information to the processing unit 7022, where the third indication information is used to indicate the channel corresponding to the first bit stream; the processing unit 7022 is configured to When the unit 7021 sends the second instruction information, it is specifically configured to: if the channel corresponding to the first bit stream is different from the channel corresponding to the communication device 70, send the second instruction information to the demultiplexing unit 7021. If the channel corresponding to the first bit stream is different from the channel corresponding to the communication device 70, it can indicate that the second bit stream is not the bit stream required by the communication device 70, and the processing unit 7022 sends the second instruction information to the demultiplexing unit 7021 so as to The demultiplexing unit 7021 determines the target bit stream from the multiple bit streams according to the second indication information. In an implementation manner, if the channel corresponding to the first bit stream is the same as the channel corresponding to the communication device 70, it can indicate that the first bit stream is the bit stream required by the communication device 70 (that is, the target bit stream). At this time, the processing unit 7022 may not send the second indication information to the demultiplexing unit 7021.

In an implementation manner, the second indication information may include the identifier of the channel corresponding to the communication device 70; since the demultiplexing unit 7021 knows the channel corresponding to each bit stream, the demultiplexing unit 7021 is configured to download the corresponding channel according to the second indication information. When the target bit stream is determined in the multiple bit stream, it is specifically used to determine the target bit stream from the multiple bit stream, and the identifier of the channel corresponding to the target bit stream is the same as the identifier of the channel corresponding to the communication device 70.

In an implementation manner, the positions of the bitstreams in the multiple bitstreams may have a sequential relationship, and the second indication information may include position information of the target bitstream relative to the first bitstream; the demultiplexing unit 7021 is used to 2. When the instruction information determines the target bit stream from the multi-channel bit stream, it is specifically used to: determine the target bit stream from the multi-channel bit stream according to the position information of the target bit stream relative to the first bit stream (see step S407) .

In one implementation, the demultiplexing unit 7021 is also used to obtain the capability information of the processing unit 7022; if the capability information indicates that the processing unit 7022 does not have the frame header information used to parse the data frames that compose the first bit stream The ability to convert the header information of the data frame used to compose the first bit stream, and the processing unit 7022 has the ability to analyze the converted header information of the data frame used to compose the first bit stream (see Step S405).

In an implementation manner, the demultiplexing unit 7021 is configured to determine the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream in the multiple bit stream, specifically using Yu: For each bit stream in the multi-channel bit stream, the channel corresponding to the bit stream is determined according to the first indication information included in the bit stream (see step S404).

In an implementation manner, the demultiplexing unit 7021 is configured to determine the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream in the multiple bit stream, specifically using Yu: Determine the channel corresponding to the second bit stream according to the first indication information included in the second bit stream in the multi-channel bit stream; for each bit stream in the multi-channel bit stream except the second bit stream, according to For the channel corresponding to the second bit stream, the channel corresponding to the bit stream is determined (see step S404).

It should be noted that the content not mentioned in the embodiment corresponding to FIG. 7 and the specific implementation of the steps of each module can refer to the embodiment shown in FIG. 2a and FIG. 4 and the foregoing content, and details are not described herein again.

Please refer to FIG. 8, which is a schematic structural diagram of yet another communication device 80 according to an embodiment of the application. The communication device 80 shown in FIG. 8 may include a processing module 801 and a communication module 802. The communication module 802 may include a sending module and/or a receiving module. The sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the communication module 802 may realize the sending function and/or the receiving function. The communication module can also be described as a transceiver module.

The communication device 80 may be an OLT, a device in the OLT, or a device that can be matched and used with the OLT.

The processing module 801 is configured to generate multiple data streams, process the multiple bit streams to obtain a multiplexed bit stream; for each bit stream in the multiple bit streams, the bit stream includes the first indication information, the The first indication information is used to determine the channel corresponding to the bit stream;

The communication module 802 is configured to transmit the multiplexed bit stream to the optical network terminal ONT corresponding to the communication device 80.

In an implementation manner, the first bit stream includes first broadcast information, the first broadcast information includes a correspondence between an ONT identifier and a channel identifier, and the first broadcast information is applicable to the ONT corresponding to the communication device 80.

In one implementation, when the processing module 801 is used to generate multiple data streams, it is specifically used to: obtain multiple original data streams; If the frame header information is the same, the frame header information of the data frame used to form each original data stream in the multiple original data streams is converted to obtain the multiple data streams.

In an implementation manner, the processing module 801 may be composed of a processing unit 8011, a multiplexing unit 8012, and a laser driver unit 8013, and the communication device 80 may further include a laser module 803. Among them, the processing unit 8011 is used to generate multiple bit streams and transmit the multiple bit streams to the multiplexing unit 8012; the multiplexing unit 8012 is used to obtain multiple data streams and process the multiple bit streams, Obtain a multiplexed bit stream; and transmit the multiplexed bit stream to the laser driver unit 8013; for each bit stream in the multiple bit stream, the bit stream includes first indication information, and the first indication information is used to determine The channel corresponding to the bit stream; the first bit stream in the multi-channel data stream also includes the correspondence between the ONT identifier and the channel identifier. The laser driver unit 8013 is used to drive the laser module 803 to emit light. The laser module 803 is used to generate an optical signal carrying a multiplexed bit stream. The communication module 802 is used to transmit the optical signal carrying the multiplexed bit stream to the ONT.

In one implementation, when the multiplexing unit 8012 is used to obtain multiple data streams, it is specifically used to: obtain multiple original data streams; if used to form a data frame of each original data stream in the multiple original data streams If the frame header information is the same, the frame header information of the data frame used to form each original data stream in the multiple original data streams is converted to obtain the multiple data streams (see step S405).

It should be noted that the content not mentioned in the embodiment corresponding to FIG. 8 and the specific implementation of the steps of each module can refer to the embodiment shown in FIG. 2a and FIG. 4 and the foregoing content, and will not be repeated here.

Please refer to FIG. 9, which is a schematic structural diagram of another communication device 90 provided by an embodiment of the present application. The communication device 90 may be an ONT, an OLT, a chip, a chip system, or a processor that supports the ONT to realize the functions in FIG. 5 or FIG. 7, or a chip, a chip system, or a chip that supports the OLT to realize the functions in FIG. 6 or FIG. Or processor, etc.

The communication device 90 may include one or more processors 901. The processor 901 may be a general-purpose processor or a special-purpose processor or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute computer programs, and process Computer program data.

The communication device 90 also includes a transceiver 902. The transceiver 902 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing the transceiver function. The transceiver 902 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., to implement a transmitting function.

The communication device 90 also includes a laser 906. The laser 906 is used to generate an optical signal.

Optionally, the communication device 90 may further include one or more memories 903, on which a computer program 904 may be stored, and the computer program may be run on the communication device 90, so that the communication device 90 implements the steps shown in FIGS. 5 to 8 Functions described in any embodiment. Optionally, the memory 903 may also store data. The communication device 90 and the memory 903 can be provided separately or integrated together.

In an implementation manner, the processor 901 is used to implement the functions corresponding to the processing module in FIG. 5, or the processor 901 is used to implement the functions corresponding to the routing unit and the processing unit in FIG. The transceiver 902 is used to implement the functions corresponding to the communication module in FIG. 5. In an implementation manner, the processor 901 is used to implement the function corresponding to the processing module in FIG. 6, or the processor 901 is used to implement the function corresponding to the processing unit and the multiplexing unit in FIG. 6. The transceiver 902 is used to implement the functions corresponding to the communication module in FIG. 6. In an implementation manner, the processor 901 is used to implement the functions corresponding to the processing module in FIG. 7, or the processor 901 is used to implement the functions corresponding to the demultiplexing unit and the processing unit in FIG. 7. The transceiver 902 is used to implement the functions corresponding to the communication module in FIG. 7. In an implementation manner, the processor 901 is used to implement the functions corresponding to the processing module in FIG. 8, or the processor 901 is used to implement the functions corresponding to the processing unit, the multiplexing unit, and the laser driver unit in FIG. 8. The transceiver 902 is used to implement the functions corresponding to the communication module in FIG. 8. The laser 906 is used to implement the function corresponding to the laser module in FIG. 8.

In an implementation manner, the processor 901 may include a transceiver for implementing receiving and sending functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuits, interfaces, or interface circuits used to implement the receiving and transmitting functions can be separate or integrated. The foregoing transceiver circuit, interface, or interface circuit can be used for code/data reading and writing, or the foregoing transceiver circuit, interface, or interface circuit can be used for signal transmission or transmission.

In an implementation manner, the processor 901 may store a computer program 905, and the computer program 905 runs on the processor 901 to enable the communication device 90 to implement the functions described in any of the embodiments in FIGS. 5 to 8. The computer program 905 may be solidified in the processor 901. In this case, the processor 901 may be implemented by hardware.

In an implementation manner, the communication device 90 may include a circuit, and the circuit may implement the sending or receiving or communication function in the foregoing method embodiment. The processor and transceiver described in this application can be implemented in integrated circuit (IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (ASIC), printed circuit board ( printed circuit board, PCB), electronic equipment, etc. The processor and transceiver can also be manufactured by various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiment may be an ONT or an OLT, but the scope of the communication device described in this application is not limited to this, and the structure of the communication device may not be limited by FIG. 9. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3) ASIC, such as a modem (Modem);

(4) Modules that can be embedded in other equipment;

(5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handhelds, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

(6) Others, etc.

For the case where the communication device can be a chip or a chip system, refer to the schematic diagram of the chip structure shown in FIG. 10. The chip shown in FIG. 10 includes a processor 1001 and an interface 1002. The number of processors 1001 may be one or more, and the number of interfaces 1002 may be more than one.

For the case where the chip is used to implement the function of the ONT in the embodiment of the present application:

The interface 1002 is used to implement the functions corresponding to the communication module in FIG. 5 or FIG. 7. The processor 1001 is configured to implement functions corresponding to the processing modules in FIG. 5 or FIG. 7.

For the case where the chip is used to implement the function of the OLT in the embodiment of the present application:

The interface 1002 is used to implement the functions corresponding to the communication module in FIG. 6 or FIG. 8. The processor 1001 is configured to implement functions corresponding to the processing modules in FIG. 6 or FIG. 9.

Optionally, the chip further includes a memory 1003, and the memory 1003 is used to store necessary computer programs and data.

Those skilled in the art may also understand that various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be construed as going beyond the protection scope of the embodiments of the present application.

The present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer-readable storage medium is executed by a computer, the function of any of the foregoing method embodiments is realized.

This application also provides a computer program product, which, when executed by a computer, realizes the functions of any of the foregoing method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer programs. When the computer program is loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program may be downloaded from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

Those of ordinary skill in the art can understand that the various numerical numbers such as first and second involved in the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application, but also indicate a sequence.

At least one in this application can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C", and "D", etc. For the technical features in “First”, “Second”, “Third”, “A”, “B”, “C” and “D”, there is no order or size order among the technical features.

The corresponding relationships shown in the tables in this application can be configured or pre-defined. The value of the information in each table is only an example, and can be configured to other values, which is not limited in this application. When configuring the correspondence between the information and the parameters, it is not necessarily required to configure all the correspondences indicated in the tables. For example, in the table in this application, the corresponding relationship shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, and so on. The names of the parameters shown in the titles in the above tables may also be other names that can be understood by the communication device, and the values or expressions of the parameters may also be other values or expressions that can be understood by the communication device. When the above tables are implemented, other data structures can also be used, such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables. Wait.

The pre-definition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-fired.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A channel identification method based on multiplexing, characterized in that the method includes:

The optical network terminal ONT receives the multiplexed bit stream from the optical line terminal OLT, and processes the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit The stream includes first indication information, and the first indication information is used to determine the channel corresponding to the bit stream;

The ONT determines the channel corresponding to the ONT;

The ONT determines a target bit stream from the multiple bit streams; the channel corresponding to the target bit stream is the same as the channel corresponding to the ONT.
The method according to claim 1, wherein the ONT determining the channel corresponding to the ONT comprises:

Determining, by the ONT, a first bit stream from the multiple bit streams; the first bit stream further includes a correspondence between an ONT identifier and a channel identifier;

The ONT determines the channel corresponding to the ONT according to the correspondence between the ONT identifier and the channel identifier, and the identifier of the ONT.
The method according to claim 2, wherein the ONT corresponds to a default channel; and the first bit stream is a bit stream corresponding to the default channel.
The method according to claim 2, wherein the ONT does not correspond to a default channel; the ONT determining the first bit stream from the multi-channel bit stream comprises:

The ONT determines any bit stream in the multiple bit streams as the first bit stream; each bit stream in the multiple bit streams includes the correspondence between the ONT identifier and the channel identifier.
The method according to any one of claims 2 to 4, wherein the first bit stream includes first broadcast information, and the first broadcast information includes the correspondence between the ONT identifier and the channel identifier, The first broadcast information is applicable to the ONT corresponding to the OLT, and the ONT corresponding to the OLT includes the ONT.
The method according to any one of claims 1 to 5, wherein the method further comprises:

The ONT determines the channel corresponding to the second bit stream according to the first indication information included in the second bit stream; the second bit stream is any one of the multiple bit streams;

If the channel corresponding to the second bitstream is different from the channel corresponding to the ONT, triggering the step of determining the target bitstream from the multiple bitstreams.
The method according to claim 6, wherein the positions of the bit streams in the multi-channel bit stream have an order relationship; the ONT determining the target bit stream from the multi-channel bit stream comprises:

Determining, by the ONT, the position information of the target bitstream relative to the second bitstream according to the channel corresponding to the second bitstream and the channel corresponding to the ONT;

The ONT determines the target bitstream from the multiple bitstreams according to the position information of the target bitstream relative to the second bitstream.
The method according to any one of claims 1 to 7, wherein for each bit stream in the multiple bit stream, the bit stream includes second broadcast information, and the second broadcast information includes all The first indication information in the bit stream and the second broadcast information are applicable to the ONT corresponding to the OLT, and the ONT corresponding to the OLT includes the ONT.
The method according to claim 8, wherein for each bit stream in the multi-channel bit stream, the bit stream is composed of multiple data frames, and some or all of the data in the multiple data frames Each frame includes the second broadcast information, and the bit stream includes a plurality of the second broadcast information.
The method according to any one of claims 2 to 5, wherein the method further comprises:

The ONT determines the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream; the second bit stream is any bit in the multiple bit stream flow.
The method according to claim 10, wherein the ONT determining the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream comprises:

For each bitstream in the multiple bitstreams, the ONT determines the channel corresponding to the bitstream according to the first indication information included in the bitstream.
The method according to claim 10, wherein the ONT determining the channel corresponding to each bit stream in the multi-channel bit stream according to the first indication information included in the second bit stream comprises:

Determining, by the ONT, a channel corresponding to the second bit stream according to the first indication information included in the second bit stream;

For each bit stream in the multi-channel bit stream except the second bit stream, the ONT determines the channel corresponding to the bit stream according to the channel corresponding to the second bit stream.
The method according to any one of claims 10-12, wherein the method further comprises:

If the channel corresponding to the first bitstream is different from the channel corresponding to the ONT, triggering the step of determining the target bitstream from the multiple bitstreams.
The method according to any one of claims 2 to 5 and 10 to 13, wherein the positions of the bit streams in the multi-channel bit stream have an order relationship; and the ONT is selected from the multi-channel bit stream. Determine the target bitstream, including:

Determining, by the ONT, the position information of the target bitstream relative to the first bitstream according to the channel corresponding to the first bitstream and the channel corresponding to the ONT;

The ONT determines the target bitstream from the multiple bitstreams according to the position information of the target bitstream relative to the first bitstream.
The method according to any one of claims 1 to 5 and 10 to 14, wherein for each bit stream in the multi-channel bit stream, the bit stream is composed of multiple data frames, and the bit The first indication information included in the stream is the frame header information of any one of the multiple data frames; the frame header information used to compose the data frames of different bit streams is different.
The method according to claim 15, wherein the ONT comprises a processing module, and the method further comprises:

Acquiring, by the ONT, the capability information of the processing module;

If the capability information indicates that the processing module does not have the capability to parse the frame header information of the data frame used to compose the first bit stream, the ONT will check the data frame used to compose the first bit stream. The frame header information is converted, and the processing module has the ability to analyze the converted frame header information of the data frame used to compose the first bit stream.
A channel identification method based on multiplexing, characterized in that the method includes:

The optical line terminal OLT generates multiple data streams and processes the multiple bit streams to obtain a multiplexed bit stream; for each bit stream in the multiple bit streams, the bit stream includes first indication information , The first indication information is used to determine the channel corresponding to the bit stream;

The OLT transmits the multiplexed bit stream to the optical network terminal ONT corresponding to the OLT.
The method according to claim 17, wherein the first bit stream in the multi-channel bit stream further comprises a correspondence between an ONT identifier and a channel identifier.
The method according to claim 18, wherein the ONT corresponds to a default channel; and the first bit stream is a bit stream corresponding to the default channel.
The method according to claim 18, wherein the ONT does not correspond to a default channel; the first bit stream is any one of the multiple bit streams, and the first bit stream is any one of the multiple bit streams. Each bit stream includes the corresponding relationship between the ONT identifier and the channel identifier.
The method according to any one of claims 18 to 20, wherein the first bit stream includes first broadcast information, and the first broadcast information includes the correspondence between the ONT identifier and the channel identifier, The first broadcast information is applicable to the ONT corresponding to the OLT.
The method according to any one of claims 17 to 21, wherein for each bit stream in the multi-channel bit stream, the bit stream includes second broadcast information, and the second broadcast information includes all The first indication information in the bit stream and the second broadcast information are applicable to the ONT corresponding to the OLT.
The method according to claim 22, wherein for each bit stream in the multiple bit stream, the bit stream is composed of multiple data frames, and some or all of the data in the multiple data frames Each frame includes the second broadcast information, and the bit stream includes a plurality of the second broadcast information.
The method according to any one of claims 17 to 21, wherein for each bit stream in the multi-channel bit stream, the bit stream is composed of a plurality of data frames, and the bit stream includes the first One indication information is the frame header information of any data frame in the multiple data frames; the frame header information used to form the data frames of different bit streams is different.
The method according to claim 24, wherein the optical line terminal OLT generates multiple data streams, comprising:

The OLT generates multiple original data streams;

If the header information of the data frame used to compose each original data stream in the multiple original data streams is the same, the OLT pairs the data frames used to compose each original data stream in the multiple original data streams. The header information of the data frame is converted to obtain multiple data streams.
An optical network terminal ONT, characterized in that the ONT includes a routing unit and a processing unit;

The routing unit is configured to determine a second bit stream from multiple bit streams, and transmit the second bit stream to the processing unit; for each bit stream in the multiple bit stream, The bit stream includes first indication information, and the first indication information is used to determine the channel corresponding to the bit stream; the second bit stream is any one of the multiple bit streams;

The processing unit is configured to determine the channel corresponding to the second bit stream according to the first indication information in the second bit stream; determine the channel corresponding to the ONT, if the channel corresponding to the second bit stream If the channel corresponding to the ONT is different, sending second indication information to the routing unit, where the second indication information is used to determine the target bit stream;

The routing unit is further configured to determine the target bit stream from the multiple bit streams according to the second indication information, and transmit the target bit stream to the processing unit; the target bit stream The corresponding channel is the same as the channel corresponding to the ONT.
The ONT according to claim 26, wherein the first bit stream in the multi-channel bit stream further comprises a correspondence between an ONT identifier and a channel identifier;

The routing unit is further configured to determine the first bit stream from the multiple bit streams, and transmit the first bit stream to the processing unit;

When the processing unit is configured to determine the channel corresponding to the ONT, it is specifically configured to determine the channel corresponding to the ONT according to the correspondence between the ONT identifier and the channel identifier, and the identifier of the ONT.
The ONT according to claim 26 or 27, wherein the second indication information includes the identifier of the channel corresponding to the second bit stream and the identifier of the channel corresponding to the ONT;

When the routing unit is configured to determine the target bitstream from the multiple bitstreams according to the second indication information, it is specifically configured to: according to the identifier of the channel corresponding to the second bitstream and the ONT The identifier of the corresponding channel determines the target bitstream from the multiple bitstreams.
An optical line terminal OLT, characterized in that the OLT includes a processing unit and a multiplexing unit:

The processing unit is configured to generate multiple bit streams and transmit the multiple bit streams to the multiplexing unit; for each bit stream in the multiple bit streams, the bit stream includes a first Indication information, where the first indication information is used to determine the channel corresponding to the bit stream.
The OLT according to claim 29, wherein the first bit stream in the multi-channel bit stream further comprises a correspondence between an ONT identifier and a channel identifier.
An optical network terminal ONT, characterized in that the ONT includes a demultiplexing unit and a processing unit:

The demultiplexing unit is configured to obtain a multiplexed bit stream, and process the multiplexed bit stream to obtain a multiple bit stream; for each bit stream in the multiple bit stream, the bit stream Including first indication information, where the first indication information is used to determine the channel corresponding to the bit stream;

The demultiplexing unit is further configured to determine the channel corresponding to each bit stream in the multiple bit stream according to the first indication information included in the second bit stream in the multiple bit stream; The first bit stream is determined from the multi-channel bit stream; the first bit stream is transmitted to the processing unit; the first bit stream also includes the correspondence between the ONT identifier and the channel identifier; the second bit stream is Any one of the multiple bit streams;

The processing unit is configured to determine the channel corresponding to the ONT according to the correspondence between the ONT identifier and the channel identifier, and the identifier of the ONT; send second indication information to the demultiplexing unit, so The second indication information is used to determine the target bit stream;

The demultiplexing unit is further configured to determine the target bit stream from the multiple bit streams according to the second indication information, and transmit the target bit stream to the processing unit; the target bit stream The channel corresponding to the stream is the same as the channel corresponding to the ONT.
The ONT according to claim 31, wherein the demultiplexing unit is further configured to send third indication information to the processing unit, and the third indication information is used to indicate the data corresponding to the first bit stream. aisle;

When the processing unit is configured to send second indication information to the demultiplexing unit, it is specifically configured to: if the channel corresponding to the first bit stream is different from the channel corresponding to the ONT, send the second instruction information to the demultiplexing unit. The unit sends second indication information.
The ONT according to claim 31 or 32, wherein for each bit stream in the multi-channel bit stream, the bit stream is composed of a plurality of data frames, and the bit stream includes the first indication information It is the frame header information of any data frame in the multiple data frames; the frame header information of the data frames used to compose different bit streams is different.
The ONT according to claim 33, wherein:

The demultiplexing unit is further configured to obtain capability information of the processing unit; if the capability information indicates that the processing unit does not have the ability to parse the header information of the data frame used to compose the first bit stream , The frame header information of the data frame used to compose the first bit stream is converted, and the processing unit has the ability to analyze the converted frame header information of the data frame used to compose the first bit stream.
An optical line terminal OLT, characterized in that the OLT includes a multiplexing unit and a laser driver unit;

The multiplexing unit is configured to obtain multiple data streams, process the multiple bit streams to obtain a multiplexed bit stream; and transmit the multiplexed bit stream to the laser driver unit; Each bit stream in the multi-channel bit stream, the bit stream includes first indication information, the first indication information is used to determine the channel corresponding to the bit stream; the first bit stream in the multi-channel data stream It also includes the corresponding relationship between the ONT identifier of the optical network terminal and the channel identifier.
The OLT according to claim 35, wherein for each bit stream in the multi-channel bit stream, the bit stream is composed of a plurality of data frames, and the first indication information included in the bit stream is The frame header information of any one of the multiple data frames; the frame header information of the data frames used to compose different bit streams is different.
The OLT according to claim 36, wherein:

When the multiplexing unit is used to obtain multiple data streams, it is specifically used to: obtain multiple original data streams; if used to form the frame header information of the data frame of each original data stream in the multiple original data streams In the same way, the frame header information of the data frame used to compose each of the original data streams in the multiple original data streams is converted to obtain the multiple data streams.
A multiplexing-based channel identification device, characterized in that the device includes a processor and a memory, and program instructions are stored in the memory, and the processor executes the program instructions stored in the memory to enable The device executes the method according to any one of claims 1-16.
A multiplexing-based channel identification device, characterized in that the device includes a processor and a memory, and program instructions are stored in the memory, and the processor executes the program instructions stored in the memory to enable The device executes the method according to any one of claims 17-25.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program includes program instructions that when executed by a multiplexing-based channel identification device cause all The device executes the method according to any one of claims 1-16 or 17-25.