WO2023201912A1 - Procédé et appareil d'enregistrement de dispositif - Google Patents

Procédé et appareil d'enregistrement de dispositif Download PDF

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Publication number
WO2023201912A1
WO2023201912A1 PCT/CN2022/106027 CN2022106027W WO2023201912A1 WO 2023201912 A1 WO2023201912 A1 WO 2023201912A1 CN 2022106027 W CN2022106027 W CN 2022106027W WO 2023201912 A1 WO2023201912 A1 WO 2023201912A1
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WIPO (PCT)
Prior art keywords
optical
rate
optical network
line terminal
message
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PCT/CN2022/106027
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English (en)
Chinese (zh)
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李博睿
李红波
刘思迪
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华为技术有限公司
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Publication of WO2023201912A1 publication Critical patent/WO2023201912A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects

Definitions

  • the present application relates to the field of equipment management technology, and in particular to a device registration method and device.
  • Passive optical network includes optical line termination (OLT), optical distribution network (ODN) and optical network termination (ONT).
  • OLT optical line termination
  • ODN optical distribution network
  • ONT optical network termination
  • the OLT is configured with an optical module, and the OLT needs to use the optical module to send and receive messages.
  • PON relies on a point-to-multipoint architecture to realize the connection between network nodes and end users.
  • PON can use low-cost optical devices.
  • Low-cost optical devices are mainly low-bandwidth devices.
  • High-speed messages received by low-bandwidth devices will have inter-symbol interference (ISI).
  • ISI inter-symbol interference
  • digital signal processing technology can be used in optical modules and the equalization function of the digital signal processor (DSP) can be used to eliminate ISI.
  • DSP digital signal processor
  • the DSP can determine the packet processing parameters based on the received packets, and eliminate the ISI of the packets based on the packet processing parameters.
  • the process of determining the packet processing parameters is the process of changing the packet processing parameters from the initial state to convergence, and this process takes a certain amount of time.
  • the ONT can send a training sequence with a longer length to the OLT, so that the DSP can converge the packet processing parameters within the duration of the training sequence.
  • This application provides a device registration method and device. This application can effectively ensure the registration efficiency of optical network terminals.
  • the technical solutions provided by this application are as follows:
  • this application provides a device registration method.
  • This method is applied to passive optical networks.
  • Passive optical networks include: optical network terminals and optical line terminals.
  • the method includes: the optical network terminal sends a discovery response message to the optical line terminal, the rate at which the optical network terminal sends the discovery response message is less than the service rate, and the service rate is the rate at which the optical network terminal sends the service message; the optical line terminal responds based on the discovery response
  • the message obtains the device information of the optical network terminal; the optical network terminal sends an authorization response message to the optical line terminal at the service rate, and the authorization response message includes at least one of a test message and a service message.
  • the discovery response message carries equipment information (such as serial number) of the optical network terminal.
  • the optical line terminal obtains the equipment information of the optical network terminal in order to perform terminal discovery on the optical network terminal, and after completing the terminal discovery on the optical network terminal, the optical line terminal can assign the optical network terminal identifier and the optical network terminal identifier to the optical network terminal. Only when the bandwidth is authorized can the optical network terminal be able to send other messages (such as authorization response messages) in addition to the discovery response message to the optical line terminal. Therefore, the optical network terminal that sends the authorization response message to the optical line terminal here is actually the optical network terminal that has obtained the device information. Moreover, in this article, the operations performed after the optical network terminal obtains the device information are actually operations performed by the optical network terminal whose device information is obtained.
  • the optical line terminal Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • packet collision means that in the point-to-multipoint passive optical network architecture, when the optical line terminal allows multiple unregistered optical network terminals to register within a specified time, the optical line terminal receives a When the discovery response message of the optical network terminal is received, the discovery response message of other optical network terminals will also be received.
  • the discovery response message is used for the optical line terminal to obtain the device information of the optical network terminal, thereby realizing terminal discovery of the optical network terminal.
  • the discovery response message carries device information such as the serial number of the optical network terminal. Then the optical line terminal obtains the device information of the optical network terminal based on the discovery response message, including: the optical line terminal extracts the serial number of the optical network terminal from the discovery response message.
  • the method also includes: the optical line terminal allocates an optical network terminal identifier to the optical network terminal, and sends the optical network terminal identifier to the optical network terminal.
  • the optical network terminal can interact with the optical line terminal using the optical network terminal identification. For example, the optical network terminal sends an authorization response message to the optical line terminal at the service rate, including: the optical network terminal sends an authorization response message carrying the optical network terminal identifier to the optical line terminal at the service rate.
  • the rate at which the optical network terminal sends messages can be reflected by extracting the time it takes for the messages to be sent by the optical line terminal.
  • the difference between the two rates can be expressed by the following content:
  • the optical line terminal extracts the The time it takes to send the same message at a rate lower than the service rate is less than the time it takes to extract the same message sent at the service rate.
  • the optical line terminal extracting the message means that the optical line terminal correctly extracts the message.
  • the rate at which the optical network terminal sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal reports The packets are equalized.
  • the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message is implemented in different ways.
  • the following two implementation methods are used as examples to illustrate them:
  • the authorization response message includes a test message.
  • the method further includes: the optical network terminal sends a ranging message to the optical line terminal.
  • the rate at which the optical network terminal sends the ranging response message is less than the service rate; the optical line terminal allocates a balanced delay to the optical network terminal based on the ranging response message.
  • the ranging response messages Since the rate of sending ranging response messages is lower than the service rate, the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further improving the optical network terminal.
  • the efficiency of network terminal ranging shortens the time it takes for optical network terminals to complete registration.
  • the rate at which the optical network terminal sends ranging response messages can be less than the reference rate, and the service rate can be greater than or equal to the reference rate.
  • the optical line The terminal performs equalization processing on the packets.
  • the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not perform equalization processing on the packets.
  • the optical line terminal since the authorization response message includes a test message, and the sending rate of the authorization response message is the service rate, the optical line terminal performs equalization processing on the message. Therefore, the method also includes: the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message, and the message processing parameters are used to process the messages received by the optical line terminal.
  • the authorization response message is a service message. That is, the authorization response message does not include test messages, but only business messages.
  • the method before the optical network terminal sends an authorization response message to the optical line terminal at the service rate, the method also includes: the optical network terminal sends a ranging response message to the optical line terminal at the service rate.
  • the range response message includes a test sequence; the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, and allocates a balanced delay to the optical network terminal based on the ranging response message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • the message processing parameters include: physical layer parameters such as clock phase deviation, equalization coefficients, and/or parameters of the analog equalization circuit.
  • the optical line terminal includes an optical module.
  • adjust the packet processing parameters of the optical line terminal including adjusting the packet processing parameters of the optical module.
  • the processor eliminates the inter-code crosstalk of the message based on the message processing parameters, specifically the processor adjusts the message processing parameters.
  • the method further includes: the optical module receives the discovery response message; the optical module The discovery response message is forwarded to the access controller at the service rate; the optical line terminal obtains the device information of the optical network terminal based on the discovery response message, including: the access controller obtains the optical network terminal based on the discovery response message sent at the service rate. Device information of the network terminal.
  • the discovery response is forwarded to the access controller through the optical module at the service rate. message, it can ensure that the access controller receives discovery response messages that comply with the configuration message instructions, and prevent the access controller from generating alarms due to receiving messages with an incorrect rate.
  • the method also includes: the optical module receives the ranging response message. text; the optical module forwards the ranging response message to the access controller at the service rate; the optical line terminal allocates balanced delay to the optical network terminal based on the ranging response message, including: the access controller sends the ranging response message at the service rate The ranging response message is allocated to the optical network terminal with balanced delay.
  • the method further includes: the optical module sending a type indication to the access controller, where the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the type indication can be implemented through a flag bit.
  • the flag bit When the flag bit carries a first parameter value, it indicates that the optical network terminal needs to perform rate switching. When the flag bit carries a second parameter value, it indicates that the optical network terminal needs to perform rate switching. No rate switching is required.
  • the type indication can indicate whether the optical network terminal needs to perform rate switching by instructing the optical network terminal at a rate at which the discovery response message is sent. For example, when the type indication indicates that the rate at which the optical network terminal sends discovery response messages is less than the service rate, the access controller may determine that the optical network terminal needs to perform rate switching based on the indication.
  • the optical module may carry the type indication in the check bit of the discovery response message sent to the access controller.
  • the optical network terminal can communicate with the optical line terminal at the service rate. For example, the optical network terminal sends test packets and service packets to the optical line terminal at the service rate. Therefore, in one implementation, before the optical network terminal sends an authorization response message to the optical line terminal at the service rate, the method further includes: the optical line terminal sends a rate switching instruction to the optical network terminal, and the rate switching instruction instructs the optical line terminal to The network terminal sends messages to the optical line terminal at the service rate.
  • rate switching instructions may be sent according to the type indication. For example, if the access controller receives a type indication, and the type indication is used to indicate that the optical network terminal needs to perform rate switching, the access controller can send a rate switching instruction to the optical network terminal through the optical module. Moreover, when sending a rate switching instruction to the optical network terminal, multiple rate switching instructions can be sent continuously to the optical network terminal to ensure that the optical network terminal can receive the rate switching instruction.
  • the optical module may not send a type indication to the access controller.
  • the access controller may not make a decision to send a rate switching instruction to the optical network terminal based on the type indication.
  • the access controller may not make a decision to send a rate switching instruction to the optical network terminal based on the type indication.
  • the access controller After the access controller completes the allocation equalization delay to the optical network terminal, if it determines that the packets sent by the optical network terminal at the service rate will not affect the normal functions of the optical line terminal, it can pass The optical module sends rate switching instructions to the optical network terminal.
  • the access controller makes a After the optical network terminal sends the decision of the rate switching instruction, the alarm function of the access controller can be turned off.
  • the optical module After the optical module completes the adjustment of the packet processing parameters, the optical module can send a completion command to the access controller to indicate that the optical module has completed the adjustment of the packet processing parameters, so that the access controller can execute normally according to the completion command. Subsequent operations.
  • the method further includes: the access controller turns on the alarm function based on the completion instruction.
  • this application provides a device registration method.
  • This method is applied to optical network terminals.
  • the method includes: the optical network terminal sends a discovery response message to the optical line terminal; the rate at which the optical network terminal sends the discovery response message is less than the service rate; the service rate is the rate at which the optical network terminal sends the service message; the optical network terminal sends the discovery response message at the service rate; , sending an authorization response message to the optical line terminal, where the authorization response message includes at least one of a test message and a service message.
  • the method further includes: the optical network terminal receives the optical network terminal identification assigned by the optical line terminal to the optical network terminal. After the optical network terminal receives the optical network terminal identifier, it can interact with the optical line terminal using the optical network terminal identifier. For example, the optical network terminal sends an authorization response message to the optical line terminal at the service rate, including: the optical network terminal sends an authorization response message carrying the optical network terminal identifier to the optical line terminal at the service rate. Among them, the optical network terminal identifier is assigned to the optical network terminal after the optical line terminal obtains the device information of the optical network terminal based on the discovery response message. The discovery response message is used for the optical line terminal to obtain the device information of the optical network terminal, thereby realizing terminal discovery of the optical network terminal. In an implementation manner, the discovery response message carries the serial number of the optical network terminal.
  • the optical line terminal when the message processing parameters of the optical line terminal are in the initial state, for the same message sent at a rate less than the service rate and the same message sent at the service rate, the optical line terminal extracts the same message sent at a rate less than the service rate.
  • the time it takes to extract a message is less than the time it takes to extract the same message sent at the service rate.
  • the rate at which the optical network terminal sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal reports The packets are equalized.
  • the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message includes a test message.
  • the method further includes: the optical network terminal sends a ranging response message to the optical line terminal. , the rate at which the optical network terminal sends ranging response messages is less than the service rate.
  • the rate at which the optical network terminal sends ranging response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal When the rate at which the message is sent to the optical line terminal is greater than or equal to the reference rate, the optical line terminal The packets are equalized. When the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message is a service message. That is, the authorization response message does not include test messages, but only business messages.
  • the method also includes: the optical network terminal sends a ranging response message to the optical line terminal at the service rate, and the ranging response message includes a test sequence.
  • the method further includes: the optical network terminal receives a rate switching instruction sent by the optical line terminal, and the rate switching instruction instructs the optical network terminal to transmit the authorization response message at the service rate. Send packets to the optical line terminal at the rate.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate, including: after receiving the rate switching instruction, the optical network terminal sends an authorization response message to the optical line terminal at the service rate.
  • this application provides a device registration method.
  • This method is applied to optical line terminals.
  • the method includes: the optical line terminal receives the discovery response message sent by the optical network terminal, the rate at which the optical network terminal sends the discovery response message is less than the service rate, and the service rate is the rate at which the optical network terminal sends the service message; the optical line terminal is based on discovery
  • the response message obtains the device information of the optical network terminal; the optical line terminal receives an authorization response message sent by the optical network terminal at a service rate, and the authorization response message includes at least one of a test message and a service message.
  • the discovery response message is used for the optical line terminal to obtain the device information of the optical network terminal, thereby realizing terminal discovery of the optical network terminal.
  • the discovery response message carries the serial number of the optical network terminal.
  • the optical line terminal obtains the device information of the optical network terminal based on the discovery response message, including: the optical line terminal extracts the serial number of the optical network terminal from the discovery response message.
  • the method also includes: the optical line terminal allocates an optical network terminal identifier to the optical network terminal, and sends the optical network terminal identifier to the optical network terminal.
  • the optical network terminal can interact with the optical line terminal using the optical network terminal identifier.
  • the optical line terminal receiving an authorization response message sent by the optical network terminal at the service rate includes: the optical line terminal receiving the authorization response message sent by the optical network terminal at the service rate, and the authorization response message carries the optical network terminal identifier.
  • the authorization response message includes a test message.
  • the method further includes: the optical line terminal receives the ranging response message sent by the optical network terminal.
  • the rate at which the optical network terminal sends ranging response messages is lower than the service rate; the optical line terminal allocates a balanced delay to the optical network terminal based on the ranging response messages.
  • the method also includes: the optical line terminal adjusts message processing parameters of the optical line terminal based on the test message, and the message processing parameters are used to process messages received by the optical line terminal.
  • the authorization response message is a service message. That is, the authorization response message does not include test messages, but only business messages.
  • the method also includes: the optical line terminal receives the ranging response message sent by the optical network terminal at the service rate, and the ranging response message includes the test sequence; the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, and allocates a balanced delay to the optical network terminal based on the ranging response message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • the message processing parameters include: clock phase deviation and/or equalization coefficient.
  • the optical line terminal includes an optical module.
  • adjust the packet processing parameters of the optical line terminal including adjusting the packet processing parameters of the optical module.
  • the processor eliminates the inter-code crosstalk of the message based on the message processing parameters, specifically the processor adjusts the message processing parameters.
  • the method further includes: the optical module receives the discovery response message; the optical module The discovery response message is forwarded to the access controller at the service rate; the optical line terminal obtains the device information of the optical network terminal based on the discovery response message, including: the access controller obtains the optical network terminal based on the discovery response message sent at the service rate. Device information of the network terminal.
  • the method further includes: the optical module receives the ranging response message. text; the optical module forwards the ranging response message to the access controller at the service rate; the optical line terminal allocates balanced delay to the optical network terminal based on the ranging response message, including: the access controller sends the ranging response message at the service rate The ranging response message is allocated to the optical network terminal with balanced delay.
  • the method further includes: the optical module sending a type indication to the access controller, where the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the method before the optical line terminal receives the authorization response message sent by the optical network terminal at the service rate, the method also includes: the optical line terminal sends a rate switching instruction to the optical network terminal, and the rate switching instruction instructs the optical network terminal to transmit at the service rate. Send messages to optical line terminals.
  • the optical line terminal further includes an access controller.
  • the access controller turns off the alarm function.
  • the optical line terminal includes an optical module and an access controller, and when the optical line terminal is used to adjust the message processing parameters of the optical line terminal based on the test message, the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message.
  • the method also includes: the optical module sends a completion instruction to the access controller, and the completion instruction is used to indicate that the optical module has completed the adjustment of the message processing parameters.
  • the method further includes: the access controller turns on the alarm function based on the completion instruction.
  • this application provides a passive optical network.
  • Passive optical networks include: optical network terminals and optical line terminals.
  • the optical network terminal is used to perform the method provided in the second aspect of the application and any possible implementation manner thereof; the optical line terminal is used to perform the method provided in the third aspect of the application and any possible implementation manner thereof.
  • the optical network terminal is used to send discovery response messages to the optical line terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages;
  • the optical line terminal is used to send discovery response messages based on The discovery response message obtains the device information of the optical network terminal;
  • the optical network terminal is used to send an authorization response message to the optical line terminal at a service rate, and the authorization response message includes at least one of a test message and a service message.
  • the rate at which the optical network terminal sends messages can be reflected by extracting the time it takes for the messages to be sent by the optical line terminal. For example, when the message processing parameters of the optical line terminal are in the initial state, for the same message sent at a rate less than the service rate and the same message sent at the service rate, the optical line terminal extracts the cost of the same message sent at a rate less than the service rate The time is less than the time it takes to extract the same message sent at the service rate.
  • the rate at which the optical network terminal sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal reports The packets are equalized.
  • the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message includes a test message
  • the optical network terminal is also used to send a ranging response message to the optical line terminal.
  • the rate at which the optical network terminal sends the ranging response message is less than the service rate; the optical line terminal The terminal is also used to allocate balanced delay to the optical network terminal based on the ranging response message.
  • the rate at which the optical network terminal sends ranging response messages can be less than the reference rate, and the service rate can be greater than or equal to the reference rate.
  • the optical line The terminal performs equalization processing on the packets.
  • the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not perform equalization processing on the packets.
  • the optical line terminal is also used to adjust the message processing parameters of the optical line terminal based on the test message, and the message processing parameters are used to process the messages received by the optical line terminal.
  • the authorization response message is a service message. That is, the authorization response message does not include test messages, but only business messages.
  • the method before the optical network terminal sends an authorization response message to the optical line terminal at the service rate, the method also includes: the optical network terminal sends a ranging response message to the optical line terminal at the service rate.
  • the range response message includes a test sequence; the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, and allocates a balanced delay to the optical network terminal based on the ranging response message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • the message processing parameters include: physical layer parameters such as clock phase deviation, equalization coefficients, and/or parameters of the analog equalization circuit.
  • the optical line terminal includes an optical module.
  • the optical module is specifically used to adjust the packet processing parameters of the optical module.
  • the processor eliminates the inter-code crosstalk of the message based on the message processing parameters, specifically the processor adjusts the message processing parameters based on the test message.
  • the optical module is also used to receive the discovery response message; the optical module is also used to forward the discovery response message to the access controller at the service rate; the access controller The controller is used to obtain the device information of the optical network terminal based on the discovery response message sent at the service rate.
  • the optical module is also used to receive the ranging response message; the optical module is also used to forward the ranging response message to the access controller at the service rate;
  • the access controller is specifically used to allocate balanced delays to optical network terminals based on ranging response messages sent at the service rate.
  • the optical module is also used to send a type indication to the access controller.
  • the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the optical line terminal is also used to send a rate switching instruction to the optical network terminal before the optical network terminal sends a test message to the optical line terminal at the service rate.
  • the rate switching instruction instructs the optical network terminal to send the test message to the optical line terminal at the service rate.
  • the terminal sends the message.
  • the optical line terminal further includes an access controller, and the access controller is further configured to turn off the alarm function before the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message.
  • the optical line terminal includes an optical module and an access controller, and when the optical module is used to adjust the message processing parameters of the optical line terminal based on the test message, the optical module is also used to send a completion instruction to the access controller, The completion command is used to indicate that the optical module has completed the adjustment of message processing parameters.
  • the access controller is also used to enable the alarm function based on the completion instruction.
  • this application provides an optical network terminal.
  • the optical network terminal includes: a sending module, which is used to send discovery response messages to the optical line terminal.
  • the rate at which the sending module sends discovery response messages is less than the service rate, and the service rate is the rate at which the sending module sends service messages; the sending module also uses The authorization response message is sent to the optical line terminal at the service rate, and the authorization response message includes at least one of a test message and a service message.
  • the optical line terminal when the message processing parameters of the optical line terminal are in the initial state, for the same message sent at a rate less than the service rate and the same message sent at the service rate, the optical line terminal extracts the same message sent at a rate less than the service rate.
  • the time it takes to extract a message is less than the time it takes to extract the same message sent at the service rate.
  • the rate at which the sending module sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal responds to the message Perform equalization processing.
  • the transmission rate of packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message includes a test message
  • the sending module is also used to send a ranging response message to the optical line terminal.
  • the rate at which the sending module sends the ranging response message is less than the service rate.
  • the rate at which the sending module sends ranging response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal reports The packets are equalized.
  • the optical line terminal does not perform equalization processing on the packets.
  • the authorization response message is a service message, that is, the authorization response message does not include the test message, but only the service message.
  • the sending module is also used to send a ranging response message to the optical line terminal at the service rate, where the ranging response message includes a test sequence.
  • the optical network terminal also includes: a receiving module, configured to receive a rate switching instruction sent by the optical line terminal before the sending module sends a test message to the optical line terminal at a service rate.
  • the rate switching instruction instructs the optical network terminal to transmit a test message at a service rate. Send packets to the optical line terminal at the rate.
  • the sending module is specifically configured to send the test message to the optical line terminal at the service rate based on the rate switching instruction.
  • this application provides an optical line terminal.
  • the optical line terminal includes a transceiver module and a processing module.
  • the transceiver module is used to receive the discovery response message sent by the optical network terminal.
  • the rate at which the optical network terminal sends the discovery response message is less than the service rate, and the service rate is the rate at which the optical network terminal sends the service message;
  • the processing module is used for discovery-based
  • the response message obtains the device information of the optical network terminal;
  • the transceiver module is also used to receive an authorization response message sent by the optical network terminal at a service rate.
  • the authorization response message includes at least one of a test message and a service message.
  • the authorization response message includes a test message.
  • the transceiver module is also configured to receive a ranging response message sent by the optical network terminal before receiving the authorization response message sent by the optical network terminal at the service rate.
  • the optical network terminal sends The rate of the ranging response message is lower than the service rate; the processing module is also used to allocate balanced delay to the optical network terminal based on the ranging response message.
  • the processing module is also used to adjust message processing parameters based on the test message, and the message processing parameters are used to process the messages received by the processing module.
  • the authorization response message is a service message. That is, the authorization response message does not include test messages, but only business messages.
  • the transceiver module is also used to receive the ranging response message sent by the optical network terminal at the service rate before receiving the authorization response message sent by the optical network terminal at the service rate.
  • the ranging response message includes the test sequence; the processing module also uses Based on the test sequence, the message processing parameters of the optical line terminal are adjusted, and based on the ranging response message, a balanced delay is allocated to the optical network terminal.
  • the message processing parameters are used to process the messages received by the processing module.
  • the message processing parameters include: clock phase deviation and/or equalization coefficient.
  • the transceiver module is also used to receive the ranging response message, and forward the ranging response message to the processed module at the service rate; the processing module is specifically used to perform optical processing based on the ranging response message sent at the service rate.
  • Network terminals allocate balanced delays.
  • the transceiver module is also configured to send a type indication to the processing module, where the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the processing module is also configured to send a rate switching instruction to the optical network terminal through the transceiver module before receiving the authorization response message sent by the optical network terminal at the service rate.
  • the rate switching instruction instructs the optical network terminal to send the optical network terminal at the service rate.
  • the line terminal sends the message.
  • the processing module is also used to turn off the alarm function before adjusting the message processing parameters.
  • the transceiver module is also configured to send a completion instruction to the processing module after adjusting the message processing parameters.
  • the completion instruction is used to indicate that the transceiver module has completed the adjustment of the message processing parameters.
  • the processing module is also used to enable the alarm function based on the completion instruction.
  • the present application provides an optical network terminal, including a memory and a processor.
  • the memory stores program instructions
  • the processor runs the program instructions to execute the second aspect of the application and any possible implementation thereof. method.
  • this application provides an optical line terminal, including a memory and a processor.
  • the memory stores program instructions
  • the processor runs the program instructions to execute the method provided in the third aspect of this application and any possible implementation manner thereof. method.
  • the application provides a computer-readable storage medium.
  • the computer-readable storage medium is a non-volatile computer-readable storage medium.
  • the computer-readable storage medium includes program instructions. When the program instructions are stored on a computer device, When running, the computer device is caused to execute the method provided in the second aspect of the application and any possible implementation manner thereof, or to execute the method provided in the third aspect of the application and any possible implementation manner thereof.
  • this application provides a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the method provided in the second aspect of this application and any possible implementation thereof, or , execute the method provided in the third aspect of this application and any possible implementation manner thereof.
  • Figure 1 is a schematic diagram of an application scenario involved in a device registration method provided by an embodiment of the present application
  • Figure 2 is a schematic structural diagram of an optical line terminal provided by an embodiment of the present application.
  • Figure 3 is a schematic structural diagram of an optical network terminal provided by an embodiment of the present application.
  • Figure 4 is a flow chart of a device registration method provided by an embodiment of the present application.
  • Figure 5 is a flow chart of another device registration method provided by an embodiment of the present application.
  • Figure 6 is a flow chart of yet another device registration method provided by an embodiment of the present application.
  • Figure 7 is a flow chart of a method for registering an optical network terminal device provided by an embodiment of the present application.
  • Figure 8 is a flow chart of a registration method for an optical line terminal implementation device provided by an embodiment of the present application.
  • Figure 9 is a flow chart of another registration method for optical line terminal implementation equipment provided by an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of another optical network terminal provided by an embodiment of the present application.
  • Figure 11 is a schematic structural diagram of another optical line terminal provided by an embodiment of the present application.
  • FIG 1 is a schematic diagram of an application scenario involved in a device registration method provided by an embodiment of the present application.
  • this application scenario includes: optical line terminal 200 and optical network terminal 300.
  • the optical line terminal refers to the network side interface that provides the optical access network.
  • the optical network terminal is the user-side device of the passive optical network, and the user terminal can access the network through the optical network terminal.
  • optical network terminals can provide various broadband services to user terminals connected to them.
  • the optical line terminal and the optical network terminal are connected through an optical distribution network.
  • Systems including optical line terminals, optical network terminals and optical distribution networks can be called passive optical networks.
  • the optical line terminal can connect multiple optical network terminals through the optical distribution network.
  • the passive optical network including the optical line terminal and the optical network terminal is a point-to-multipoint passive optical network.
  • each optical network terminal In the downstream direction where the optical line terminal sends a message to the optical network terminal, the optical line terminal sends a message to the optical network terminal connected to it through broadcast. After receiving the message, each optical network terminal can select the message belonging to the optical network terminal. own content.
  • each optical network terminal In the upstream direction where the optical network terminal sends messages to the optical line terminal, each optical network terminal communicates with the optical line terminal in the form of burst packets within the designated time slot through time division multiplexing (TDM). , thereby avoiding collisions between various optical network terminals.
  • TDM time division multiplexing
  • the optical network terminal needs to register with the optical line terminal, that is, complete the process from power on to registration.
  • This process includes: terminal discovery process and ranging process from the optical line terminal to the optical network terminal.
  • optical line terminals usually silence optical network terminals that have completed registration periodically. That is, the optical line terminal does not allocate bandwidth to optical network terminals that have completed registration within a specified period of time, and allows the optical network terminals that have completed registration to be silent.
  • the optical network terminal interacts with the optical line terminal to register related messages within the specified period.
  • registration-related messages are usually very short (for example, dozens of bytes), so that multiple optical network terminals can register during this period, thereby improving registration efficiency.
  • optoelectronic devices with lower bandwidth can be used in passive optical networks.
  • optoelectronic devices with lower bandwidth send and receive high-speed messages, inter-code crosstalk will occur.
  • the optical line terminal 200 may include an optical module 201.
  • the optical line terminal 200 relies on the optical module 201 to send and receive messages.
  • the optical module 201 includes a processor 2011.
  • the processor 2011 can adjust its message processing parameters according to the received message, and use the adjusted message processing parameters to realize its equalization function, thereby adjusting the inter-code of the message. Crosstalk is corrected.
  • the processor 2011 may be a digital signal processor (DSP).
  • DSP digital signal processor
  • the process of adjusting the packet processing parameters is a process of adjusting the packet processing parameters of the processor 2011 from the initial state to convergence. Only after the adjustment of the message processing parameters is completed, the optical module 201 can parse the valid information according to the received message. Otherwise, the information cannot be parsed, or the correct information cannot be parsed.
  • the message processing parameters corresponding to different optical network terminals may be different. Therefore, the processor 2011 needs to adjust the message processing parameters for different optical network terminals.
  • the optical line terminal 200, the optical module 201 and the processor 2011 can exist in various forms.
  • the optical module 201 can be independent of the optical line terminal 200, and the optical module 201 can be externally connected to the optical line terminal 200.
  • the optical line terminal 200 may be a device having a slot, and the optical module 201 may be inserted into the slot.
  • the optical line terminal with an external optical module and the optical module as a whole can also be called an optical line terminal.
  • the processor 2011 may be located inside the optical module 201, or the processor 2011 may also be located inside the optical line terminal 200, which is not specifically limited in the embodiment of this application.
  • the components used to implement the functions of the optical module 201 may be components in the optical line terminal 200 .
  • the entire set of components used to implement the functions of the optical module 201 is usually not called an optical module, but for convenience of description, it is also referred to as an optical module in this article.
  • the processor 2011 is also a component in the optical line terminal 200.
  • each optical network terminal needs to send a training sequence with a longer length to the optical line terminal 200 at a service rate, so that the processor 2011 can complete the training sequence within the duration of the training sequence. Adjust packet processing parameters.
  • a longer training sequence will increase the time it takes for optical network terminals to register, and since the messages of multiple optical network terminals to be registered appear at random locations within the silent window, collisions are prone to occur, thus affecting the performance of the same optical network terminal.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the device information of the optical network terminal based on the discovery response message and completes the discovery of the optical network terminal. Terminal discovery. Then, the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively
  • the registration efficiency of multiple optical network terminals registered to the optical line terminal 200 during the same period is guaranteed, thereby improving user service experience.
  • the rate at which the optical network terminal sends messages can be reflected by extracting the time it takes for the message to be sent by the optical line terminal.
  • the difference between the two rates can be expressed by the following content:
  • the optical line terminal extracts the The time it takes to send the same message at a rate lower than the service rate is less than the time it takes to extract the same message sent at the service rate.
  • the optical line terminal extracting the message means that the optical line terminal correctly extracts the message.
  • the rate at which the optical network terminal sends discovery response messages may be less than the reference rate, and the service rate may be greater than or equal to the reference rate.
  • the reference rate may be the critical rate at which the optical line terminal needs to equalize packets. That is, when the transmission rate of the packets sent to the optical line terminal is greater than or equal to the reference rate, the optical line terminal needs to equalize the packets. When the transmission rate of the packets sent to the optical line terminal is less than the reference rate, , the optical line terminal does not need to equalize the packets.
  • equalization processing can be used to eliminate inter-code crosstalk of messages.
  • the reference rate can be the critical sending rate that causes inter-code crosstalk in the message when the optical network terminal is used to send the message.
  • the transmission rate of packets sent by the optical network terminal is less than the reference rate, the packets received by the optical line terminal 200 will not cause inter-code crosstalk, and the optical line terminal does not need to adjust the packet processing parameters.
  • the transmission rate of packets sent by the optical network terminal is greater than or equal to the reference rate, inter-code crosstalk will occur in the packets received by the optical line terminal 200, and the optical line terminal needs to adjust packet processing parameters. Therefore, the optical network terminals involved in the embodiments of this application may all be optical network terminals with a service rate greater than or equal to the reference rate.
  • the message processing parameters in the embodiment of the present application may include physical layer parameters such as clock phase deviation, equalization coefficients, and/or parameters of the analog equalization circuit.
  • the optical line terminal 200 may also include an access controller 205.
  • the optical line terminal 200 relies on the access controller 205 to control the network access of the optical network terminal.
  • the access controller 205 can perform terminal discovery on optical network terminals, allocate balanced delays to optical network terminals, and perform service authorization on optical network terminals.
  • the access controller 205 may be a media access controller (media access controller, MAC).
  • the optical line terminal 200 may also include a processor 2011, a passive optical network card, a gateway router, a voice gateway, an uplink card, etc., which are not specifically limited in the embodiment of this application.
  • FIG. 2 is a schematic structural diagram of an optical line terminal provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the optical module 201 being a component in the optical line terminal 200.
  • the optical line terminal 200 includes an optical module 201, a memory 202, a communication interface 203, a bus 204 and an access controller 205.
  • the optical module 201 includes a processor 2011.
  • the optical module 201, the memory 202, and the communication interface 203 realize communication connections with each other through the bus 204.
  • the optical line terminal 200 may include multiple processors, so that different processors can implement the functions of the above-mentioned different functional modules.
  • Processors may include general-purpose processors and/or special-purpose hardware chips.
  • General-purpose processors can include: central processing unit (CPU), microprocessor or graphics processing unit (GPU).
  • the CPU is, for example, a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • a dedicated hardware chip is a high-performance processing hardware module.
  • Specialized hardware chips include at least one of a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a network processor (NP) One item.
  • the processor can also be an integrated circuit chip with signal processing capabilities. During the implementation process, part or all of the functions of the device registration method of this application can be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
  • the memory 202 is used to store computer programs, including an operating system 202a and executable code 202b.
  • the memory 202 is, for example, a read-only memory or other type of static storage device that can store static information and instructions, or a random access memory or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable memory device.
  • the memory 202 is used to store outbound port queues, etc.
  • the memory 202 exists independently, for example, and is connected to the processor through a bus 204 . Or the memory 202 and the processor are integrated together.
  • the memory 202 may store executable code. When the executable code stored in the memory 202 is executed by the processor, the processor is used to execute the device registration method provided by the embodiment of the present application.
  • the memory 202 may also include operating systems and other software modules and data required for running processes.
  • the communication interface 203 uses a transceiver module such as but not limited to a transceiver to implement communication between the optical line terminal 200 and other devices or communication networks.
  • a transceiver module such as but not limited to a transceiver to implement communication between the optical line terminal 200 and other devices or communication networks.
  • the communication interface 203 may be any one or any combination of the following devices: a network interface (such as an Ethernet interface), a wireless network card, and other devices with network access functions.
  • the bus 204 is any type of communication bus used to interconnect internal devices (eg, memory 202, processor, communication interface 203) of the optical line terminal 200, such as a system bus.
  • This embodiment of the present application takes the interconnection of the above-mentioned devices inside the optical line terminal 200 through the bus 204 as an example.
  • the above-mentioned devices inside the optical line terminal 200 can also communicate with each other using other connection methods besides the bus 204 .
  • the above-mentioned devices inside the optical line terminal 200 are interconnected through logical interfaces inside the optical line terminal 200 .
  • the optical network terminal can be a device such as an "optical cat".
  • Figure 3 is a schematic structural diagram of an optical network terminal provided by an embodiment of the present application.
  • the optical network terminal 300 includes a processor 301 , a memory 302 , a communication interface 303 and a bus 304 .
  • the memory 302, the processor 301, and the communication interface 303 implement communication connections between each other through the bus 304.
  • the optical network terminal 300 may include multiple processors 301 so that different processors can implement the functions of the above-mentioned different functional modules.
  • Processor 301 may include a general-purpose processor and/or a special-purpose hardware chip.
  • General purpose processors may include: central processing units, microprocessors, or graphics processors.
  • the CPU is, for example, a single-core processor or a multi-core processor.
  • a dedicated hardware chip is a high-performance processing hardware module.
  • Special-purpose hardware chips include at least one of an application-specific integrated circuit, a field-programmable logic gate array, or a network processor.
  • the processor 301 may also be an integrated circuit chip with signal processing capabilities. During the implementation process, part or all of the functions of the device registration method of the present application can be completed by instructions in the form of hardware integrated logic circuits or software in the processor 301 .
  • the memory 302 is used to store computer programs, including an operating system 302a and executable code 302b.
  • the memory 302 is, for example, a read-only memory or other type of static storage device that can store static information and instructions, or a random access memory or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable memory device.
  • the memory 302 is used to store outbound port queues, etc.
  • the memory 302 exists independently, for example, and is connected to the processor 301 through a bus 304 . Or the memory 302 and the processor 301 are integrated together.
  • the memory 302 can store executable code. When the executable code stored in the memory 302 is executed by the processor 301, the processor 301 is used to execute the device registration method provided by the embodiment of the present application.
  • the memory 302 may also include operating systems and other software modules and data required for running processes.
  • the communication interface 303 uses a transceiver module such as but not limited to a transceiver to implement communication between the optical network terminal 300 and other devices or communication networks.
  • a transceiver module such as but not limited to a transceiver to implement communication between the optical network terminal 300 and other devices or communication networks.
  • the communication interface 303 may be any one or any combination of the following devices: a network interface (such as an Ethernet interface), a wireless network card, and other devices with network access functions.
  • the bus 304 is any type of communication bus used to interconnect internal devices (for example, the memory 302, the processor 301, the communication interface 303) of the optical network terminal 300, such as a system bus.
  • the embodiment of the present application takes the above-mentioned devices inside the optical network terminal 300 as being interconnected through the bus 304 as an example.
  • the above-mentioned devices inside the optical network terminal 300 can also communicate with each other using other connection methods besides the bus 304.
  • the above-mentioned devices inside the optical network terminal 300 are interconnected through logical interfaces inside the optical network terminal 300 .
  • optical network terminal and optical line terminal can be respectively provided on independent chips, or at least part or all of them can be provided on the same chip. Whether each device is independently installed on different chips or integrated on one or more chips often depends on the needs of product design.
  • the embodiments of this application do not limit the specific implementation forms of the above devices.
  • the descriptions of the processes corresponding to each of the above drawings have different emphases. For parts that are not detailed in a certain process, you can refer to the relevant descriptions of other processes.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product that provides a program development platform includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer device, the process or function of the device registration method provided by the embodiment of the present application is fully or partially implemented.
  • computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another.
  • computer instructions may be transmitted over a wired connection from a website, computer, server or data center. (such as coaxial cable, optical fiber, digital subscriber line or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website, computer, server or data center.
  • the computer-readable storage medium stores information that provides a program development platform Computer program instructions.
  • the authorization response message may include at least one of a test message and a service message.
  • the implementation process of the device registration method provided by the embodiment of the present application is different. They are explained below. Furthermore, the following describes the implementation process of the device registration method provided by the embodiment of the present application, taking an example in which the optical module is externally connected to the optical line terminal and the processor is located inside the optical module.
  • the implementation process of the device's registration method includes the following steps:
  • Step 401 The optical line terminal sends a configuration message to the optical network terminal.
  • the configuration message is used to instruct the optical network terminal to send registration-related messages to the optical line terminal.
  • optical line terminals In order to realize the registration of optical network terminals, optical line terminals usually silence optical network terminals that have completed registration periodically. That is, the optical line terminal does not allocate bandwidth to optical network terminals that have completed registration within a specified period of time.
  • the optical network terminal interacts with the optical line terminal to register relevant messages within the specified period, so as to complete the registration of the optical network terminal based on the message.
  • the optical line terminal needs to perform terminal discovery on the optical network terminal and obtain the physical distance from the optical network terminal to the optical line terminal after the terminal discovery is completed (that is, ranging from the optical network terminal).
  • the messages required for terminal discovery include: discovery response messages sent by the optical network terminal to the optical line terminal.
  • the discovery response message may carry equipment information of the optical network terminal. For example, the serial number (SN) of an optical network terminal.
  • the messages required for ranging include: the ranging indication message sent by the optical line terminal to the designated optical network terminal, and the ranging response message sent by the optical network terminal to the optical line terminal. Moreover, this designated period is usually called a silent window provided by the optical line terminal for the optical network terminal to be registered.
  • a silent window supports the registration process of optical network terminals at one rate. Therefore, before the silent window arrives, the optical line terminal can send a configuration message to the optical network terminal to be registered to indicate what speed optical network terminal can initiate registration within the silent window, so that the optical network terminal with the corresponding speed can initiate registration within the silent window.
  • the silent window interacts with the optical line terminal to register messages related to it.
  • the optical line terminal may broadcast the configuration message to the optical network terminal to be registered.
  • the configuration message may be a burst-profile message.
  • an optical network terminal with a certain rate refers to an optical network terminal that sends service packets at the rate.
  • an optical network terminal that sends service messages at a rate of 10 gigabit per second (Gbps) can be called a 10Gbps optical network terminal.
  • An optical network terminal that sends service messages at a rate of 50Gbps can be called a 50Gbps optical network terminal.
  • the optical line terminal relies on the optical module to send and receive messages, and the access controller in the optical line terminal is used to decide what rate the silent window supports for the registration process of the optical network terminal. Therefore, the access controller can indicate to the optical module what rate the silent window supports, and the optical module sends a configuration message to the optical network terminal based on the instruction of the access controller. In one implementation, the access controller can carry the rate supported by the silent window in the encoding check bit of the message sent to the optical module, and the optical module extracts this information and completes the encoding of the message.
  • step 401 includes: Step 4011: The access controller sends the rate supported by the silent window to the optical module. And, step 4012, the optical module sends a configuration message to the optical network terminal.
  • the configuration message is used to instruct the optical network terminal to send a registration-related message to the optical line terminal, and the optical network terminal is an optical fiber with a rate supported by the silent window. Network terminal.
  • Step 402 The optical network terminal sends a discovery response message to the optical line terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • the optical network terminal to be registered After the optical network terminal to be registered is powered on, it can listen to the configuration packet sent by the optical line terminal, and when the rate indicated by the configuration packet is the rate at which the optical network terminal sends service packets, in the silent window provided by the optical line terminal , sending a discovery response message to the optical line terminal.
  • the discovery response message carries the device information (such as serial number) of the optical network terminal.
  • the rate at which the optical network terminal sends messages can be reflected by extracting the time it takes for the message to be sent by the optical line terminal.
  • the difference between the two rates can be expressed by the following content:
  • the optical line terminal extracts the The time it takes to send the same message at a rate lower than the service rate is less than the time it takes to extract the same message sent at the service rate.
  • the optical line terminal extracting the message means that the optical line terminal correctly extracts the message.
  • the rate at which the optical network terminal sends discovery response messages may be less than the reference rate, and the service rate may be greater than or equal to the reference rate.
  • the reference rate may be the critical rate at which the optical line terminal needs to equalize packets. That is, when the transmission rate of the packets sent to the optical line terminal is greater than or equal to the reference rate, the optical line terminal needs to equalize the packets. When the transmission rate of the packets sent to the optical line terminal is less than the reference rate, , the optical line terminal does not need to equalize the packets.
  • equalization processing can be used to eliminate inter-code crosstalk of messages.
  • the reference rate can be the critical sending rate that causes inter-code crosstalk in the message when the optical network terminal is used to send the message. That is to say, when the message sending rate is greater than or equal to the reference rate, the message received by the optical line terminal will have inter-code crosstalk. When the message sending rate is less than the reference rate, the message received by the optical line terminal will There will be no inter-symbol crosstalk.
  • the rate at which the optical network terminal sends the discovery response message can be any rate lower than the reference rate, or it can be any upstream rate of the passive optical network that is lower than the reference rate.
  • the uplink rate includes 2.5Gbps and 10Gbps, and the reference rate is 10Gbps, then the rate at which the optical network terminal sends discovery response messages can be 2.5Gbps or any rate less than 10Gbps.
  • the uplink rates include 12.5Gbps, 25Gbps and 50Gbps.
  • the reference rate is 50Gbps.
  • the rate at which the optical network terminal sends discovery response messages can be 12.5Gbps, 25Gbps or any rate less than 50Gbps.
  • Adjusting the message processing parameters of the optical line terminal can ensure that the optical line terminal successfully receives the discovery response message and improves the success rate of terminal discovery of the optical network terminal. Moreover, since there is no need to adjust the message processing parameters of the optical line terminal in this process, it is possible to use a shorter frame length to complete terminal discovery. Compared with the technology of adjusting the message processing parameters of the optical line terminal by sending a longer training sequence, It avoids sending a long training sequence during the terminal discovery process, reduces the probability of collision, and can effectively ensure the registration efficiency of optical network terminals.
  • step 402 includes: Step 4021: The optical network terminal sends a discovery response message to the optical module at a rate smaller than the service rate.
  • Step 403 The optical line terminal obtains the device information of the optical network terminal based on the discovery response message.
  • performing terminal discovery on the optical network terminal includes: obtaining device information of the optical network terminal based on the discovery response message. For example, the optical line terminal extracts the serial number of the optical network terminal from the discovery response message. Moreover, after completing the terminal discovery, the optical line terminal allocates an optical network terminal identification (ONT-ID) to the optical network terminal, so that the optical network terminal and the optical line terminal interact according to the ONT-ID.
  • ONT-ID optical network terminal identification
  • the optical line terminal when the optical line terminal includes an optical module and an access controller, the optical line terminal can receive the discovery response message through the optical module. At this time, the optical line terminal's terminal discovery operation for the optical network terminal can be performed by the access controller. Correspondingly, after receiving the discovery response message, the optical module can forward the discovery response message to the access controller. Moreover, since the rate indicated by the configuration message is the service rate at which the optical network terminal sends the service message, and the rate at which the optical network terminal sends the discovery response message is less than the service rate, the optical module cannot receive the service rate sent at a rate less than the service rate.
  • the discovery response message needs to be forwarded to the access controller at the service rate to ensure that the access controller can receive the discovery response message that meets the configuration message instructions and to avoid the access controller receiving errors.
  • An alarm occurs for packets at a certain rate.
  • the optical line terminal obtains the device information of the optical network terminal based on the discovery response message, including: the access controller obtains the device information of the optical network terminal based on the discovery response message sent at the service rate.
  • the optical module in order to ensure that accurate discovery response messages are sent to the optical line terminal, after the optical module receives the message sent by the terminal, it can first use the rate to identify that the discovery response message is sent at a rate lower than the service rate. message, and perform clock recovery and judgment on the discovery response message. Moreover, since the configuration message is sent to the optical network terminal through the optical module, the optical module can learn the service rate supported by the silent window. Therefore, after the discovery response message is judged, the optical module can send the service rate to the access controller at the service rate. The discovery response message obtained by the judgment.
  • the optical module when it forwards the discovery response message to the access controller at the service rate, it can also send a type indication to the access controller.
  • This type of indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the optical module since the discovery response message received by the optical module is sent at a rate less than the service rate, the optical module needs to forward the discovery response message to the access controller at the service rate, so that the discovery response message sent at the service rate If the sending time of the message is less than the sending time of the discovery response message sent at a rate less than the service rate, the optical module can send the type indication to the access controller within the period of forwarding the discovery response message to the access controller. This type indication can be implemented through a flag bit.
  • the type indication can indicate whether the optical network terminal needs to perform rate switching by instructing the optical network terminal at a rate at which the discovery response message is sent. For example, when the type indication indicates that the rate at which the optical network terminal sends discovery response messages is less than the service rate, the access controller may determine that the optical network terminal needs to perform rate switching based on the indication. In one implementation, the optical module may carry the type indication in the check bit of the discovery response message sent to the access controller.
  • step 403 when the optical line terminal includes an optical module and an access controller, step 403 includes: Step 4031: The optical module forwards the discovery response message to the access controller at the service rate. And, step 4032, the access controller obtains the device information of the optical network terminal based on the discovery response message. Moreover, as shown in Figure 5, when the optical module sends a type indication to the access controller in step 403, step 403 also includes: step 4033: the optical module sends a type indication to the access controller. Among them, Figure 5 shows the process in which the optical module sends a type indication to the access controller after forwarding the discovery response message to the access controller.
  • Step 404 The optical line terminal sends a ranging indication message to the optical network terminal.
  • the optical line terminal After the optical line terminal completes the terminal discovery of the optical network terminal, it can enter the process of ranging the optical network terminal.
  • the optical line terminal may send the ranging indication message to the optical network terminal, so that the optical network terminal feeds back the ranging indication message to the optical line terminal according to the ranging indication message.
  • the optical line terminal After the optical line terminal obtains the ranging response message fed back by the optical network terminal, it can determine the physical distance from the optical network terminal to the optical line terminal based on the delay from sending the ranging indication message to receiving the ranging response message.
  • step 404 includes: Step 4041: The access controller instructs the optical module to send a ranging indication message to the optical network terminal. And, step 4042, the optical module sends a ranging indication message to the optical network terminal.
  • Step 405 The optical network terminal sends a ranging response message to the optical line terminal.
  • the rate at which the optical network terminal sends the ranging response message is less than the service rate.
  • the optical network terminal After receiving the ranging indication message sent by the optical line terminal, the optical network terminal can send a ranging response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal can respond to the optical network terminal based on the ranging response message. Ranging.
  • the rate at which the optical network terminal sends ranging response messages may be less than the reference rate.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, which improves the accuracy of the ranging response. Efficiency of optical network terminal ranging.
  • the rate at which the ranging response message is sent may be any rate lower than the reference rate, or may be any uplink rate of the passive optical network lower than the reference rate. Furthermore, the rate at which ranging response messages are sent may be equal to the rate at which discovery response messages are sent, or the rate at which ranging response messages are sent may not be equal to the rate at which discovery response messages are sent. This is not done in the embodiments of this application. Specific limitations.
  • step 405 includes: Step 4051: The optical network terminal sends a ranging response message to the optical module at a rate lower than the service rate.
  • Step 406 The optical line terminal performs ranging on the optical network terminal based on the ranging response message, and allocates balanced delays to the multiple optical network terminals based on the ranging results on the multiple optical network terminals.
  • the optical line terminal can receive the ranging response message through the optical module, and measure the ranging of the optical network terminal based on the ranging response message. For example, the physical distance from the optical network terminal to the optical line terminal is determined based on the time delay between the optical line terminal sending the ranging indication message and receiving the ranging response message.
  • the optical line terminal also includes an access controller.
  • the optical line terminal's ranging operation for the optical network terminal can be performed by the access controller.
  • the optical module can forward the ranging response message to the access controller at the service rate.
  • the optical module forwards the ranging response message to the access controller at the service rate, it can also send a type indication to the access controller. This type of indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the implementation process of the optical module forwarding the ranging response message to the access controller and the implementation process of sending the type indication to the access controller please refer to the relevant description in step 403 accordingly, and will not be described again here.
  • the optical line terminal After the optical line terminal completes the ranging of multiple optical network terminals to be registered, it can allocate equalization delays to the multiple optical network terminals based on the physical distances from the multiple optical network terminals to the optical line terminal. EqD), so that the logical distances between the multiple optical network terminals and the optical line terminals are equal, so that the multiple optical network terminals interact with the optical line terminals in an orderly manner at the same logical distance.
  • the optical line terminal includes an access controller
  • the operation of allocating balanced delays by the optical line terminal to multiple optical network terminals can be performed by the access controller.
  • the optical network terminal After completing the equalization delay allocation to the optical network terminal, the optical network terminal enters the ready state (such as the O5 state) and can perform normal service authorization.
  • step 406 includes: Step 4061: The optical module forwards the ranging response message to the access controller at the service rate.
  • step 4064 the optical module sends the decision to allocate the equalization delay to the optical network terminal.
  • step 406 also includes: step 4065: the optical module sends a type indication to the access controller. 5 does not show the process of the optical module sending the type indication to the access controller in step 406.
  • Step 407 The optical line terminal sends a rate switching instruction to the optical network terminal, and instructs the optical network terminal to send a test message to the optical line terminal.
  • the rate switching instruction instructs the optical network terminal to send a message to the optical line terminal at the service rate.
  • the optical network terminal can communicate with the optical line terminal at the service rate. For example, the optical network terminal sends test packets and service packets to the optical line terminal at the service rate. Among them, the optical module can adjust the message processing parameters according to the test message. In an implementation manner, the optical line terminal can send a rate switching instruction to the optical network terminal, and the optical network terminal sends a message to the optical line terminal at a service rate based on the rate switching instruction.
  • the optical line terminal includes an access controller
  • the decision to send a rate switching instruction to the optical network terminal may be made by the access controller and sent to the optical network terminal by the optical module.
  • rate switching instructions may be sent according to the type indication. For example, if the access controller receives a type indication, and the type indication is used to indicate that the optical network terminal needs to perform rate switching, the access controller can send a rate switching instruction to the optical network terminal through the optical module. Moreover, when sending a rate switching instruction to the optical network terminal, multiple rate switching instructions can be sent continuously to the optical network terminal to ensure that the optical network terminal can receive the rate switching instruction.
  • the optical module may not send a type indication to the access controller.
  • the access controller may not make a decision to send a rate switching instruction to the optical network terminal based on the type indication.
  • the access controller can use the optical module to Send rate switching instructions to the optical network terminal.
  • the optical network terminal After the optical line terminal sends a rate switching instruction to the optical network terminal, the optical network terminal can be instructed to send a test message to the optical line terminal so that the optical module can adjust the message processing parameters based on the test message. Because the message processing parameters are mainly used to correct the service messages, and the service messages are sent at the service rate. Therefore, adjusting the message processing parameters based on the test messages sent by the optical network terminal at the service rate can ensure the accuracy of the adjusted message processing parameters and improve the efficiency of eliminating inter-code crosstalk in the service messages.
  • the optical line terminal can allocate a fixed bandwidth (such as 100 Mbps) to the optical network terminal to instruct the optical network terminal to send a test message to the optical line terminal.
  • a fixed bandwidth such as 100 Mbps
  • the optical line terminal and the optical network terminal can agree that when allocating a fixed bandwidth to the optical network terminal, the optical network terminal sends a test message to the optical line terminal.
  • the allocation identifier (Alloc-ID) of the bandwidth allocated by the optical line terminal to the optical network terminal is equal to the ONT-ID allocated by the optical line terminal to the optical network terminal, the optical network terminal sends a test message to the optical line terminal.
  • the optical line terminal may send a burst packet configuration message to the optical network terminal, and the burst packet configuration message instructs the optical network terminal to send a test packet to the optical line terminal.
  • the burst packet configuration message can also indicate the type of test message.
  • the burst packet configuration message can instruct the optical network terminal to send a test message carrying an idle sequence to the optical line terminal, or a pseudo-random binary sequence (PRBS) type test message carrying the idle sequence. arts.
  • PRBS pseudo-random binary sequence
  • the optical line terminal includes an access controller
  • the decision to instruct the optical network terminal to send the test message can be made by the access controller and sent to the optical network terminal by the optical module.
  • the access controller makes After sending the decision of rate switching instruction to the optical network terminal, the alarm function of the access controller can be turned off.
  • step 407 includes: Step 4071: The access controller instructs the optical module to send a rate switching instruction to the optical network terminal, and instructs the optical module to send a rate switching instruction to the optical network terminal.
  • the network terminal sends an instruction instructing the optical network terminal to send a test message.
  • Step 4072 The optical module sends a rate switching instruction and an instruction instructing the optical network terminal to send a test message to the optical network terminal.
  • Step 408 Based on the rate switching instruction, the optical network terminal sends an authorization response message including a test message to the optical line terminal at the service rate.
  • the optical network terminal After receiving the rate switching instruction, the optical network terminal can switch to the state of sending messages at the service rate, and according to the instructions of the optical line terminal, send the authorization response message to the optical line terminal at the service rate.
  • the optical network terminal allocates an ONT-ID to the optical network terminal
  • the optical network terminal sends an authorization response message carrying the optical network terminal identification to the optical line terminal at the service rate.
  • the authorization response message may be a test message, or a test message and a service message.
  • the optical network terminal can send the test message of the corresponding type according to the instruction.
  • the optical network terminal when instructing the optical network terminal to send a test message carrying an idle sequence to the optical line terminal, the optical network terminal can fill the specified type of idle message into the gigabit-capable-passive optical network encapsulation mode (gigabit-capable-passive optical network encapsulation method, GEM) frame, and sends the GEM frame to the optical line terminal at the service rate.
  • GEM gigabit-capable-passive optical network encapsulation method
  • step 408 includes: Step 4081: The optical network terminal sends an authorization response message including a test message to the optical module at the service rate.
  • Step 409 The optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • the optical line terminal After the optical line terminal receives the test message, it can adjust the message processing parameters of the optical line terminal based on the test message.
  • the optical line terminal includes an optical module.
  • the optical module actually adjusts the packet processing parameters of the optical module based on the test packets.
  • the optical module includes a processor, and the processor eliminates the inter-code crosstalk of the message based on the message processing parameters, specifically the processor adjusts the message processing parameters based on the test message.
  • the optical network terminal can send test messages to the optical line terminal multiple times.
  • the optical module adjusts the message processing parameters according to the test messages sent multiple times, that is, repeats the operation of instructing the optical network terminal to send the test message to the optical line terminal in step 407, and the operations in steps 408 and 409, Until the adjustment of message processing parameters is completed.
  • the optical module can send a completion command to the access controller to indicate that the optical module has completed the adjustment of the packet processing parameters, so that the access controller can execute normally according to the completion command. Subsequent operations.
  • the access controller can enable the alarm function based on completion instructions.
  • the access controller can configure the authorized service bandwidth according to the completion instruction and perform normal service authorization.
  • the device registration method provided by the embodiment of this application includes:
  • Step 601 The optical line terminal sends a configuration message to the optical network terminal.
  • the configuration message is used to instruct the optical network terminal to send registration-related messages to the optical line terminal.
  • step 601 For the implementation process of step 601, please refer to the implementation process of step 401 accordingly.
  • Step 602 The optical network terminal sends a discovery response message to the optical line terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • step 602 For the implementation process of step 602, please refer to the implementation process of step 402 accordingly.
  • Step 603 The optical line terminal obtains the device information of the optical network terminal based on the discovery response message.
  • step 603 For the implementation process of step 603, please refer to the implementation process of step 403 accordingly.
  • Step 604 The optical line terminal sends a ranging indication message to the optical network terminal.
  • step 604 For the implementation process of step 604, please refer to the implementation process of step 404 accordingly.
  • Step 605 The optical network terminal sends a ranging response message to the optical line terminal at the service rate, and the ranging response message includes a test sequence.
  • the optical network terminal After receiving the ranging indication message sent by the optical line terminal, the optical network terminal can send a ranging response message to the optical line terminal at the service rate, so that the optical line terminal can measure the ranging of the optical network terminal based on the ranging response message.
  • the ranging response message may include a test sequence, such as a training sequence or preamble with a longer length, so that the optical module can adjust the message processing parameters according to the training sequence or preamble with a longer length.
  • step 605 includes: Step 6051: The optical network terminal sends a ranging response message to the optical module at the service rate.
  • Step 606 The optical line terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, then measures the ranging of the optical network terminal based on the ranging response message, and then allocates a balanced delay to the optical network terminal based on the ranging results.
  • step 606 you can first use the test sequence to adjust the message processing parameters of the optical line terminal. After the parameters converge, the ranging response message is parsed, and the ranging of the optical network terminal is completed based on the ranging response message. , and then allocate balanced delay to the optical network terminal based on the ranging results. Among them, in step 606, the optical line terminal performs ranging on the optical network terminal based on the ranging response message, and allocates the balanced delay according to the ranging results of multiple optical network terminals. Please refer to the implementation process in step 406 accordingly. The relevant description will not be repeated here. For the implementation process of the optical line terminal adjusting the message processing parameters of the optical line terminal, please refer to the relevant description of step 409 accordingly.
  • Step 607 The optical line terminal sends a rate switching instruction to the optical network terminal, and the rate switching instruction instructs the optical network terminal to send a message to the optical line terminal at the service rate.
  • step 607 For the implementation process of step 607, please refer to the relevant description of step 407 accordingly.
  • Step 608 The optical network terminal sends the service message to the optical line terminal at the service rate based on the rate switching instruction.
  • the optical network terminal After receiving the rate switching instruction, the optical network terminal can switch to the state of sending messages at the service rate, and when it is necessary to send service messages to the optical line terminal, it can send service messages to the optical line terminal at the service rate.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the optical fiber based on the discovery response message.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further This improves the efficiency of ranging for optical network terminals and shortens the time it takes for optical network terminals to complete registration.
  • This application provides a device registration method. This method is applied to optical network terminals. As shown in Figure 7, the method includes:
  • Step 701 The optical network terminal receives a configuration message.
  • the configuration message is used to instruct the optical network terminal to send a registration-related message to the optical line terminal.
  • step 401 Please refer to the relevant description in step 401 for how to implement the configuration message.
  • Step 702 The optical network terminal sends a discovery response message to the optical line terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • step 702 For the implementation process of step 702, please refer to the relevant description of step 402 accordingly.
  • Step 703 The optical network terminal receives the ranging indication message.
  • step 404 For the implementation of the ranging indication message, please refer to the relevant description in step 404 accordingly.
  • Step 704 The optical network terminal sends a ranging response message to the optical line terminal.
  • the rate at which the optical network terminal sends ranging response messages is less than the service rate.
  • the rate at which the optical network terminal sends ranging response messages is less than the service rate.
  • the optical network terminal can send a ranging response message to the optical line terminal at the service rate.
  • the ranging response message includes a test sequence, so that the optical line terminal can adjust the message processing parameters based on the test sequence.
  • Step 705 The optical network terminal receives the rate switching instruction sent by the optical line terminal.
  • the rate switching instruction instructs the optical network terminal to send a message to the optical line terminal at the service rate.
  • step 407 For the implementation method of the rate switching instruction, please refer to the relevant description in step 407 accordingly.
  • Step 706 The optical network terminal sends an authorization response message to the optical line terminal at the service rate based on the rate switching instruction.
  • the authorization response message may include a test message.
  • the optical network terminal can send test packets and service packets at the service rate. At this time, please refer to the relevant description in step 408 for the implementation method of step 706.
  • the authorization response message may be a service message.
  • the optical network terminal can send service packets at the service rate.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the optical fiber based on the discovery response message.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further The efficiency of optical network terminal ranging is improved.
  • the authorization response message may include at least one of a test message and a service message.
  • the authorization response message includes a test message, as shown in Figure 8, the method includes:
  • Step 801 The optical line terminal sends a configuration message to the optical network terminal.
  • the configuration message is used to instruct the optical network terminal to send a registration-related message to the optical line terminal.
  • step 801 For the implementation process of step 801, please refer to the implementation process of step 401 accordingly.
  • Step 802 The optical line terminal receives the discovery response message sent by the optical network terminal.
  • the rate at which the optical network terminal sends the discovery response message is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • step 402 For the implementation method of the discovery response message, please refer to the relevant description of step 402 accordingly.
  • Step 803 The optical line terminal obtains the device information of the optical network terminal based on the discovery response message.
  • step 803 For the implementation process of step 803, please refer to the implementation process of step 403 accordingly.
  • Step 804 The optical line terminal sends a ranging indication message to the optical network terminal.
  • step 804 For the implementation process of step 804, please refer to the relevant description of step 404 accordingly.
  • Step 805 The optical line terminal receives the ranging response message sent by the optical network terminal.
  • the rate at which the optical network terminal sends the ranging response message is less than the service rate.
  • step 405 For the implementation of the ranging response message, please refer to the relevant description in step 405 accordingly.
  • Step 806 The optical line terminal performs ranging on the optical network terminal based on the ranging response message, and allocates balanced delays to the multiple optical network terminals based on the ranging results on the multiple optical network terminals.
  • step 806 For the implementation process of step 806, please refer to the relevant description of step 406 accordingly.
  • Step 807 The optical line terminal sends a rate switching instruction to the optical network terminal, and instructs the optical network terminal to send a test message to the optical line terminal.
  • the rate switching instruction instructs the optical network terminal to send a message to the optical line terminal at the service rate.
  • Step 808 The optical line terminal receives an authorization response message sent by the optical network terminal at the service rate based on the rate switching instruction.
  • the authorization response message includes a test message.
  • Step 809 The optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • step 809 please refer to the implementation process of step 409 accordingly.
  • the device registration method provided by the embodiment of this application includes:
  • Step 901 The optical line terminal sends a configuration message to the optical network terminal.
  • the configuration message is used to instruct the optical network terminal to send a registration-related message to the optical line terminal.
  • step 901 For the implementation process of step 901, please refer to the implementation process of step 401 accordingly.
  • Step 902 The optical line terminal receives the discovery response message sent by the optical network terminal.
  • the rate at which the optical network terminal sends the discovery response message is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • step 402 For the implementation method of the discovery response message, please refer to the relevant description of step 402 accordingly.
  • Step 903 The optical line terminal obtains the device information of the optical network terminal based on the discovery response message.
  • step 903 For the implementation process of step 903, please refer to the implementation process of step 403 accordingly.
  • Step 904 The optical line terminal sends a ranging indication message to the optical network terminal.
  • step 904 please refer to the implementation process of step 404 accordingly.
  • Step 905 The optical line terminal receives the ranging response message sent by the optical network terminal at the service rate.
  • the ranging response message includes the test sequence.
  • step 605 For the implementation method of the ranging response message, please refer to the relevant description of step 605 accordingly.
  • Step 906 The optical line terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, then measures the ranging of the optical network terminal based on the ranging response message, and then allocates a balanced delay to the optical network terminal based on the ranging results.
  • step 906 For the implementation process of step 906, please refer to the implementation process of step 606 accordingly.
  • Step 907 The optical line terminal sends a rate switching instruction to the optical network terminal, and the rate switching instruction instructs the optical network terminal to send a message to the optical line terminal at the service rate.
  • step 907 For the implementation process of step 907, please refer to the relevant description of step 407 accordingly.
  • Step 908 The optical line terminal receives the authorization response message sent by the optical network terminal at the service rate based on the rate switching instruction.
  • the optical network terminal After receiving the rate switching instruction, the optical network terminal can switch to the state of sending messages at the service rate, and when it is necessary to send service messages to the optical line terminal, it can send service messages to the optical line terminal at the service rate.
  • the method it also includes: the optical module receives the discovery response message, and the optical module forwards the discovery response message to the access controller at the service rate.
  • the optical line terminal obtains the equipment information of the optical network terminal based on the discovery response message, including: the access controller obtains the equipment information of the optical network terminal based on the discovery response message. Please refer to the relevant description in step 403 for how to implement this process.
  • the method further includes: the optical module receives the ranging response message. message, the optical module forwards the ranging response message to the access controller at the service rate.
  • the optical line terminal allocates a balanced delay to the optical network terminal based on the ranging response message, including: the access controller allocates a balanced delay to the optical network terminal based on the ranging response message. Please refer to the relevant description in step 406 for how to implement this process.
  • the method further includes: the optical module sending a type indication to the access controller, where the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the method further includes: the access controller turns off the alarm function. Please refer to the relevant description in step 407 for how to implement this process.
  • the optical line terminal further includes an optical module
  • the method further includes: the optical module sends a completion instruction to the access controller.
  • the completion command is used to indicate that the optical module has completed the adjustment of message processing parameters. Please refer to the relevant description in step 409 for how to implement this process.
  • the method further includes: the access controller turns on the alarm function based on the completion instruction. Please refer to the relevant description in step 409 for how to implement this process.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the optical fiber based on the discovery response message.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further The efficiency of ranging of optical network terminals is improved.
  • Passive optical networks include: optical network terminals and optical line terminals.
  • the passive optical network can be a point-to-multipoint passive optical network, in which case the optical line terminal connects multiple optical network terminals through an optical distribution network.
  • Figure 1 is a schematic diagram of a passive optical network provided by an embodiment of the present application. Among them, the functions of optical line terminals and optical network terminals are as follows:
  • the optical network terminal is used to send discovery response messages to the optical line terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • the optical line terminal is used to obtain the device information of the optical network terminal based on the discovery response message.
  • the optical network terminal is used to send an authorization response message to the optical line terminal at a service rate.
  • the authorization response message includes at least one of a test message and a service message.
  • the rate at which the optical network terminal sends messages can be reflected by extracting the time it takes for the messages to be sent by the optical line terminal. For example, when the message processing parameters of the optical line terminal are in the initial state, for the same message sent at a rate less than the service rate and the same message sent at the service rate, the optical line terminal extracts the cost of the same message sent at a rate less than the service rate The time is less than the time it takes to extract the same message sent at the service rate.
  • the rate at which the optical network terminal sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal needs to The packets are balanced.
  • the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not need to balance the packets.
  • the authorization response message includes a test message
  • the optical network terminal is also used to send a ranging response message to the optical line terminal.
  • the rate at which the optical network terminal sends the ranging response message is less than the service rate.
  • the optical line terminal is also used to allocate balanced delay to the optical network terminal based on the ranging response message.
  • the rate at which the optical network terminal sends ranging response messages can be less than the reference rate, and the service rate can be greater than or equal to the reference rate.
  • the optical line The terminal needs to equalize the packets.
  • the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not need to equalize the packets.
  • the optical line terminal is also used to adjust the message processing parameters of the optical line terminal based on the test message, and the message processing parameters are used to process the messages received by the optical line terminal.
  • the authorization response message is a service message
  • the optical network terminal is also used to send a ranging response message to the optical line terminal at the service rate.
  • the ranging response message includes a test sequence; the optical line The terminal adjusts the message processing parameters of the optical line terminal based on the test sequence, and allocates a balanced delay to the optical network terminal based on the ranging response message.
  • the message processing parameters are used to process the messages received by the optical line terminal.
  • the message processing parameters include: physical layer parameters such as clock phase deviation, equalization coefficients, and/or parameters of the analog equalization circuit.
  • the optical line terminal includes an optical module.
  • the optical module is specifically used to adjust the packet processing parameters of the optical module.
  • the processor eliminates the inter-code crosstalk of the message based on the message processing parameters, specifically the processor adjusts the message processing parameters.
  • the optical module is also used to receive a discovery response message.
  • the optical module is also used to forward discovery response messages to the access controller at the service rate.
  • the access controller is used to obtain the device information of the optical network terminal based on the discovery response message sent at the service rate.
  • the optical module is also used to receive the ranging response message.
  • the optical module is also used to forward ranging response messages to the access controller at the service rate.
  • the access controller is specifically used to allocate balanced delays to optical network terminals based on ranging response messages sent at the service rate.
  • the optical module is also used to send a type indication to the access controller, and the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the optical line terminal is also used to send a rate switching instruction to the optical network terminal before the optical network terminal sends a test message to the optical line terminal at the service rate.
  • the rate switching instruction instructs the optical network terminal to send the test message to the optical line terminal at the service rate.
  • the terminal sends the message.
  • the optical line terminal further includes an access controller, and the access controller is further configured to turn off the alarm function before the optical line terminal adjusts the message processing parameters of the optical line terminal based on the test message.
  • the optical line terminal includes an optical module and an access controller, and when the optical module is used to adjust the message processing parameters of the optical line terminal based on the test message, the optical module is also used to send a completion instruction to the access controller, The completion command is used to indicate that the optical module has completed the adjustment of message processing parameters.
  • the access controller is also used to enable the alarm function based on the completion instruction.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the optical signal based on the discovery response message.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further The efficiency of ranging of optical network terminals is improved.
  • optical network terminal 1000 includes:
  • the sending module 1001 is configured to send discovery response messages to optical line terminals.
  • the rate at which the sending module 1001 sends discovery response messages is less than the service rate, and the service rate is the rate at which the sending module 1001 sends service messages.
  • the sending module 1001 is also configured to send an authorization response message to the optical line terminal at a service rate, where the authorization response message includes at least one of a test message and a service message.
  • the optical line terminal when the message processing parameters of the optical line terminal are in the initial state, for the same message sent at a rate less than the service rate and the same message sent at the service rate, the optical line terminal extracts the same message sent at a rate less than the service rate.
  • the time it takes to extract a message is less than the time it takes to extract the same message sent at the service rate.
  • the rate at which the sending module 1001 sends discovery response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal needs to The packets are balanced.
  • the transmission rate of the packets sent to the optical line terminal is less than the reference rate, the optical line terminal does not need to balance the packets.
  • the authorization response message includes a test message.
  • the sending module 1001 is also configured to send a ranging response message to the optical line terminal.
  • the rate at which the sending module 1001 sends the ranging response message is less than the service rate.
  • the rate at which the sending module 1001 sends ranging response messages is less than the reference rate, and the service rate is greater than or equal to the reference rate.
  • the optical line terminal needs to The packets are equalized.
  • the optical line terminal does not need to perform equalization processing on the packets.
  • the authorization response message is a service message
  • the sending module 1001 is also configured to send a ranging response message to the optical line terminal at a service rate, where the ranging response message includes a test sequence.
  • the optical network terminal also includes: a receiving module 1002, configured to receive a rate switching instruction sent by the optical line terminal before the sending module 1001 sends a test message to the optical line terminal at the service rate.
  • the rate switching instruction instructs the optical network terminal. Send messages to the optical line terminal at the service rate.
  • the sending module 1001 is specifically configured to send a test message to the optical line terminal at the service rate based on the rate switching instruction.
  • optical network module may also include other components used to implement its functions.
  • the optical network module may also include components such as memory.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate lower than the service rate, so that the optical line terminal obtains the optical network information based on the discovery response message. Terminal device information to complete terminal discovery of optical network terminals. Then, the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further The efficiency of ranging of optical network terminals is improved.
  • optical line terminal 1100 includes:
  • the transceiver module 1101 is configured to receive discovery response messages sent by the optical network terminal.
  • the rate at which the optical network terminal sends discovery response messages is less than the service rate, and the service rate is the rate at which the optical network terminal sends service messages.
  • the processing module 1102 is configured to obtain the device information of the optical network terminal based on the discovery response message.
  • the transceiver module 1101 is also configured to receive an authorization response message sent by the optical network terminal at a service rate.
  • the authorization response message includes at least one of a test message and a service message.
  • the authorization response message includes a test message.
  • the transceiver module 1101 is also configured to receive a ranging response message sent by the optical network terminal before receiving the authorization response message sent by the optical network terminal at the service rate.
  • the optical network terminal The rate at which ranging response messages are sent is less than the service rate.
  • the processing module 1102 is also used to allocate balanced delay to the optical network terminal based on the ranging response message.
  • the processing module 1102 is also configured to adjust message processing parameters based on the test message, and the message processing parameters are used to process the messages received by the processing module 1102.
  • the authorization response message is a service message
  • the transceiver module 1101 is also configured to receive a ranging response message sent by the optical network terminal at the service rate before receiving the authorization response message sent by the optical network terminal at the service rate,
  • the ranging response message includes the test sequence.
  • the processing module 1102 is also used to adjust the message processing parameters of the processing module 1102 based on the test sequence, and allocate a balanced delay to the optical network terminal based on the ranging response message.
  • the message processing parameters are used to adjust the message processing parameters received by the processing module 1102. The message is processed.
  • the message processing parameters include: clock phase deviation and/or equalization coefficient.
  • the transceiver module 1101 is also configured to receive a ranging response message, and forward the ranging response message to the processing module 1102 at a service rate.
  • the processing module 1102 is specifically configured to allocate balanced delay to the optical network terminal based on the ranging response message sent at the service rate.
  • the transceiver module 1101 is also configured to send a type indication to the processing module 1102.
  • the type indication is used to indicate whether the optical network terminal needs to perform rate switching.
  • the processing module 1102 is also configured to send a rate switching instruction to the optical network terminal through the transceiver module 1101 before receiving the authorization response message sent by the optical network terminal at the service rate.
  • the rate switching instruction instructs the optical network terminal to send the authorization response message at the service rate. Send messages to optical line terminals.
  • the processing module 1102 is also configured to turn off the alarm function before adjusting the message processing parameters.
  • the transceiver module 1101 is also configured to send a completion instruction to the processing module 1102 after adjusting the message processing parameters.
  • the completion instruction is used to indicate that the transceiver module 1101 has completed the adjustment of the message processing parameters.
  • processing module 1102 is also configured to enable the alarm function based on the completion instruction.
  • optical network module may also include other components used to implement its functions.
  • the optical network module may also include components such as memory.
  • the optical network terminal first sends a discovery response message to the optical line terminal at a rate less than the service rate, so that the optical line terminal obtains the information based on the discovery response message.
  • Equipment information of optical network terminals to complete terminal discovery of optical network terminals.
  • the optical network terminal sends an authorization response message to the optical line terminal at the service rate. Since the rate at which the optical network terminal sends discovery response messages is less than the service rate, the discovery response messages received by the optical line terminal will not cause inter-code crosstalk.
  • the optical line terminal does not need to adjust the message processing parameters, so that it can use shorter
  • the frame length is used to complete the terminal discovery of the optical network terminal, shortening the time it takes for terminal discovery, and thus shortening the time it takes for optical network terminal registration.
  • it avoids sending a long training sequence during the terminal discovery process, reduces the collision probability of discovery response messages sent by different optical network terminals, and can effectively Ensure the registration efficiency of multiple optical network terminals registered to optical line terminals during the same period, thereby improving user service experience.
  • the ranging response messages will not cause the optical line terminal to adjust the message processing parameters, so that the ranging of the optical network terminal can be completed in a shorter time, further The efficiency of ranging of optical network terminals is improved.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium is a non-volatile computer-readable storage medium.
  • the computer-readable storage medium includes program instructions. When the program instructions are run on a computer device At this time, the computer device is caused to execute the device registration method provided by the embodiment of the present application.
  • An embodiment of the present application also provides a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the device registration method provided by the embodiment of the present application.
  • the terms “first”, “second” and “third” are only used for description purposes and cannot be understood as indicating or implying relative importance.
  • the term “at least one” refers to one or more, and the term “plurality” refers to two or more, unless expressly limited otherwise.
  • the information including but not limited to user equipment information, user personal information, etc.
  • data including but not limited to data used for analysis, stored data, displayed data, etc.
  • messages involved in this application are authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optical Communication System (AREA)

Abstract

La présente demande se rapporte au domaine technique de la gestion de dispositifs, et divulgue un procédé et un appareil d'enregistrement de dispositif. Le procédé comprend les étapes suivantes : un terminal de réseau optique envoie un paquet de réponse de découverte à un terminal de ligne optique, un débit d'envoi du paquet de réponse de découverte par le terminal de réseau optique étant inférieur à un débit de service, et le débit de service étant un débit d'envoi d'un paquet de service par le terminal de réseau optique ; le terminal de ligne optique obtient des informations de dispositif du terminal de réseau optique sur la base du paquet de réponse de découverte ; et le terminal de réseau optique envoie un paquet de réponse d'autorisation au terminal de ligne optique au débit de service, le paquet de réponse d'autorisation comprenant un paquet de test et/ou le paquet de service. La présente invention peut assurer efficacement l'efficacité d'enregistrement du terminal de réseau optique.
PCT/CN2022/106027 2022-04-22 2022-07-15 Procédé et appareil d'enregistrement de dispositif WO2023201912A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210431791.8A CN116980777A (zh) 2022-04-22 2022-04-22 设备的注册方法及装置
CN202210431791.8 2022-04-22

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WO2023201912A1 true WO2023201912A1 (fr) 2023-10-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120008954A1 (en) * 2009-07-30 2012-01-12 Naruto Tanaka Receiving unit, optical line terminal, and frequency calibration method for clock and data recovery circuit
CN103378979A (zh) * 2012-04-13 2013-10-30 华为终端有限公司 一种无源光网络的管理方法、设备及***
WO2017049429A1 (fr) * 2015-09-21 2017-03-30 华为技术有限公司 Procédé et appareil de transmission d'informations, et système de réseau optique passif
CN112995802A (zh) * 2019-12-12 2021-06-18 华为技术有限公司 一种光发射机、光网络单元及光发射方法
US20210391922A1 (en) * 2018-09-25 2021-12-16 Zte Corporation Ranging Method for Optical Network, OLT, ONU, and Optical Network System

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120008954A1 (en) * 2009-07-30 2012-01-12 Naruto Tanaka Receiving unit, optical line terminal, and frequency calibration method for clock and data recovery circuit
CN103378979A (zh) * 2012-04-13 2013-10-30 华为终端有限公司 一种无源光网络的管理方法、设备及***
WO2017049429A1 (fr) * 2015-09-21 2017-03-30 华为技术有限公司 Procédé et appareil de transmission d'informations, et système de réseau optique passif
US20210391922A1 (en) * 2018-09-25 2021-12-16 Zte Corporation Ranging Method for Optical Network, OLT, ONU, and Optical Network System
CN112995802A (zh) * 2019-12-12 2021-06-18 华为技术有限公司 一种光发射机、光网络单元及光发射方法

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