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WO2024140929A1 - Système pon, procédé de traitement de données et dispositif associé - Google Patents

Système pon, procédé de traitement de données et dispositif associé Download PDF

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Publication number
WO2024140929A1
WO2024140929A1 PCT/CN2023/142831 CN2023142831W WO2024140929A1 WO 2024140929 A1 WO2024140929 A1 WO 2024140929A1 CN 2023142831 W CN2023142831 W CN 2023142831W WO 2024140929 A1 WO2024140929 A1 WO 2024140929A1
Authority
WO
WIPO (PCT)
Prior art keywords
target
data
information
time slot
downlink frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/142831
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English (en)
Chinese (zh)
Inventor
李良川
黄远达
刘耕辰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2024140929A1 publication Critical patent/WO2024140929A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • 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
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • 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
    • H04Q2011/0086—Network resource allocation, dimensioning or optimisation

Definitions

  • the present application relates to the field of communications, and in particular to a passive optical network (PON) system, a data processing method and related equipment.
  • PON passive optical network
  • Passive optical network includes optical line terminal (OLT), optical distribution network (ODN) and optical network unit (ONU).
  • OLT optical line terminal
  • ODN optical distribution network
  • ONU optical network unit
  • the present application provides a PON system, a data processing method and related equipment, which can reduce the power consumption of a target optical terminal at a time corresponding to a non-target time slot through information of a target time slot carried in first information.
  • the present application provides a PON system.
  • the PON system includes an optical line terminal and multiple optical terminals.
  • the optical line terminal is used to send a first downlink frame to multiple optical terminals.
  • the first downlink frame includes multiple first data.
  • the multiple first data correspond to multiple time slots one by one.
  • the target time slot in the multiple time slots corresponds to the target first data in the multiple first data.
  • the target optical terminal in the multiple optical terminals is used to receive first information from the optical line terminal.
  • the first information includes information of the target time slot corresponding to the target optical terminal, such as the start time and end time of the target time slot.
  • the target optical terminal is used to obtain the target first data in the multiple first data according to the time corresponding to the target time slot of the first information.
  • the target optical terminal is also used to reduce the power consumption of the target optical terminal according to the time corresponding to the non-target time slot of the first information, such as shutting down one or more modules in the data recovery module.
  • the time corresponding to the non-target time slot refers to part or all of the time corresponding to the non-target time slot.
  • the time when the target optical terminal reduces the power consumption of the target optical terminal is called the closing time.
  • the closing time is less than or equal to the total time corresponding to the non-target time slot.
  • the time when the target optical terminal obtains the target first data in the multiple first data is called the opening time.
  • the open time is greater than or equal to the total time corresponding to the target time slot.
  • the target optical terminal is also used to generate a first clock and a second clock.
  • the target optical terminal is also used to perform analog-to-digital conversion on multiple first data according to the first clock to obtain multiple digital signals.
  • the multiple digital signals correspond to the multiple first data one by one.
  • the target optical terminal is used to obtain the target first data from the multiple digital signals according to the first information and the second clock.
  • the frequency of the first clock is synchronized with the frequency of the second clock.
  • the first downlink frame further includes a downlink time slot management channel.
  • the downlink time slot management channel includes first information.
  • the optical line terminal is further used to send a second downlink frame to the plurality of optical terminals.
  • the second downlink frame includes a plurality of second data.
  • the plurality of second data corresponds to the plurality of time slots one by one.
  • the target time slot in the plurality of time slots corresponds to the target time slot in the plurality of second data.
  • the target optical terminal is also used to obtain the target second data from the plurality of second data according to the first information at the time corresponding to the target time slot.
  • the target second data includes the second information.
  • the second information includes the updated target time slot information corresponding to the target optical terminal.
  • the second information includes a first field and a second field.
  • the content in the first field is used to indicate whether the target time slot is updated.
  • the second field includes information about the updated target time slot.
  • the optical line terminal is used to send a first downlink frame to multiple optical terminals through a first electrical channel.
  • the target optical terminal is used to receive first information from the optical line terminal through a second electrical channel.
  • the second aspect of the present application provides a data processing method.
  • the data processing method includes the following steps: an optical terminal receives a first downlink frame from an optical line terminal.
  • the first downlink frame includes multiple first data.
  • the multiple first data correspond to multiple time slots one by one.
  • a target time slot in the multiple time slots corresponds to target first data in the multiple first data.
  • the optical terminal obtains first information.
  • the first information includes information of the target time slot corresponding to the optical terminal.
  • the optical terminal obtains the target first data in the multiple first data at a time corresponding to the target time slot according to the first information.
  • the optical terminal reduces the power consumption of the optical terminal at a time corresponding to a non-target time slot according to the first information.
  • the data processing method further includes the following steps: the optical terminal receives a second downlink frame from the optical line terminal.
  • the second downlink frame includes a plurality of second data.
  • the plurality of second data corresponds to a plurality of time slots one by one.
  • a target time slot in the plurality of time slots corresponds to a target second data in the plurality of second data.
  • the optical terminal obtains the target second data in the plurality of second data at a time corresponding to the target time slot according to the first information.
  • the target second data includes the second information.
  • the second information includes information of the updated target time slot corresponding to the optical terminal.
  • the optical terminal receives the first downlink frame from the optical line terminal through the first electrical channel.
  • the optical terminal receives the first information from the optical line terminal through the second electrical channel.
  • the third aspect of the present application provides a data processing method.
  • the data processing method includes the following steps: an optical line terminal sends a first downlink frame to multiple optical terminals.
  • the first downlink frame includes multiple first data.
  • the multiple first data correspond to multiple time slots one by one.
  • the target time slot in the multiple time slots corresponds to the target first data in the multiple first data.
  • the optical line terminal sends first information to a target optical terminal in the multiple optical terminals.
  • the first information includes information of the target time slot corresponding to the target optical terminal.
  • the first information is used for the target optical terminal to obtain the target first data in the multiple first data according to the first information at the time corresponding to the target time slot.
  • the first information is also used for the target optical terminal to reduce the power consumption of the target optical terminal according to the first information at the time corresponding to the non-target time slot.
  • the first downlink frame further includes a downlink timeslot management channel.
  • the optical line terminal sends the first information to the target optical terminal through the downlink timeslot management channel.
  • the data processing method further includes the following steps: the optical line terminal sends a second downlink frame to multiple optical terminals.
  • the second downlink frame includes multiple second data.
  • the multiple second data correspond to multiple time slots one by one.
  • the target time slot in the multiple time slots corresponds to the target second data in the multiple second data.
  • the first information is also used for the target optical terminal to obtain the target second data in the multiple second data at the time corresponding to the target time slot according to the first information.
  • the target second data includes the second information.
  • the second information includes the information of the updated target time slot corresponding to the target optical terminal.
  • the second information includes a first field and a second field.
  • the content in the first field is used to indicate whether the target time slot information is updated.
  • the second field includes the updated target time slot information.
  • the optical line terminal sends the first downlink frame to the multiple optical terminals through the first electrical channel.
  • the optical line terminal sends the first information to the target optical terminal through the second electrical channel.
  • the acquisition module is further used to generate a first clock and a second clock.
  • the acquisition module is further used to perform analog-to-digital conversion on multiple first data according to the first clock to obtain multiple digital signals.
  • the acquisition module is used to acquire target first data from multiple digital signals according to the first information and the second clock.
  • the frequency of the first clock is synchronized with the frequency of the second clock.
  • the first downlink frame further includes a downlink timeslot management channel.
  • the downlink timeslot management channel includes first information.
  • the receiving module is further used to receive a second downlink frame from the optical line terminal.
  • the second downlink frame includes a plurality of second data.
  • the plurality of second data corresponds to a plurality of time slots one by one.
  • the target time slot in the plurality of time slots corresponds to the target second data in the plurality of second data.
  • the acquisition module is further used to acquire the target second data in the plurality of second data at a time corresponding to the target time slot according to the first information.
  • the target second data includes the second information.
  • the second information includes information of the updated target time slot corresponding to the optical terminal.
  • the present application provides an optical line terminal.
  • the optical line terminal includes a processing module and a sending module.
  • the processing module is used to obtain a first downlink frame and a first information.
  • the sending module is used to send the first downlink frame to multiple optical terminals.
  • the first downlink frame includes multiple first data.
  • the multiple first data correspond to multiple time slots one by one.
  • the target time slot in the multiple time slots corresponds to the target first data in the multiple first data.
  • the first information includes information of the target time slot corresponding to the target optical terminal.
  • the first information is used for the target optical terminal to obtain the target first data in the multiple first data according to the first information at the time corresponding to the target time slot.
  • the first information is used for the target optical terminal to reduce the power consumption of the target optical terminal according to the first information at the time corresponding to the non-target time slot.
  • the sending module is also used to send a second downlink frame to multiple optical terminals.
  • the second downlink frame includes multiple second data.
  • the multiple second data correspond to multiple time slots one by one.
  • the target time slot in the multiple time slots corresponds to the target second data in the multiple second data.
  • the first information is also used for the target optical terminal to obtain the target second data in the multiple second data at the time corresponding to the target time slot according to the first information.
  • the target second data includes the second information.
  • the second information includes the information of the updated target time slot corresponding to the target optical terminal.
  • the sending module is used to send the first downlink frame to the multiple optical terminals through the first electrical channel.
  • the sending module is also used to send the first information to the target optical terminal through the second electrical channel.
  • FIG1 is a schematic diagram of the structure of a PON system provided in an embodiment of the present application.
  • FIG3 is a schematic diagram of the structure of downlink time slot information provided in an embodiment of the present application.
  • FIG4 is a first structural schematic diagram of a target optical terminal provided by an embodiment of the present application.
  • FIG10 is a third structural diagram of the first downlink frame provided in an embodiment of the present application.
  • the first information includes information of the target time slot.
  • the target optical terminal can reduce the power consumption of the target optical terminal at the time corresponding to the non-target time slot through the first information.
  • the time corresponding to the non-target time slot can be a time that does not include the target time slot in the private time.
  • the target time slot is time slot 1 in Figure 2.
  • the start time of the target time slot is 11 and the end time is 200.
  • the target optical terminal can reduce the power consumption of the target optical terminal between 201 and 9720.
  • each optical terminal can transmit data in different quadrature amplitude modulation (QAM) formats according to different optical powers.
  • QAM quadrature amplitude modulation
  • the optical terminal needs to obtain the modulation format information to correctly demodulate the data.
  • the downlink timeslot management channel can include information related to the format modulation.
  • the size of each time slot may be different.
  • the multiple first data may include FEC error correction codes in different formats.
  • the optical terminal may perform FEC decoding on the first data according to the FEC error correction code in the corresponding format. Therefore, the downlink time slot management channel may include relevant information of the FEC format.
  • the downlink time slot management channel can be one or more time slots of the first downlink frame.
  • the optical line terminal can help the optical terminal enter the online bandwidth authorization phase after power-on through the downlink time slot management channel. After authorization, the optical line terminal sends the downlink time slot information to multiple optical terminals through the downlink time slot management channel.
  • the target optical terminal is used to obtain the target first data corresponding to the target time slot at the time corresponding to the target time slot.
  • the target optical terminal is also used to reduce the power consumption of the target optical terminal at the time corresponding to the non-target time slot.
  • the following is an exemplary description of the process of the target optical terminal obtaining the target first data and reducing the power consumption in conjunction with the structural schematic diagram of the target optical terminal.
  • FIG4 is a first structural diagram of the target optical terminal provided by the embodiment of the present application.
  • the target optical terminal 401 includes a receiving port 402, an optical demodulator 403, a digital-to-analog converter 404, a data recovery module 405, a timing recovery (TR) module 406, a clock generator 407 and a processor 408.
  • the processor 408 can be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and a NP.
  • the processor 408 can further include a hardware chip or other general-purpose processor.
  • the above-mentioned hardware chip can be an application specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the receiving port 402 is a fiber port. Taking the first downlink frame in FIG2 as an example, the functions of each module in the target optical terminal 401 are described below.
  • the digital-to-analog converter 404 is also used to convert the downlink analog electrical signal into a downlink digital electrical signal according to the first clock.
  • the TR module 406 is used to calculate the phase error between the sampling clock and the accompanying clock of the downlink analog electrical signal, and send the phase error to the clock generator 407.
  • the clock generator 407 is also used to adjust the frequency and phase of the first clock according to the phase error.
  • the data recovery module 405 is used to receive the downlink digital electrical signal from the digital-to-analog converter 404, and perform equalization, sequence detection or FEC decoding on the downlink digital electrical signal.
  • the processor 408 is used to receive the processed digital electrical signal from the data recovery module 405.
  • the processed digital electrical signal may include the first information.
  • the processor 408 is further configured to receive a second clock from the clock transmitter 407, and to time the data stream of the first downlink frame according to the second clock.
  • the second clock is synchronized with the first clock, that is, the frequency of the first clock is an integer multiple of the frequency of the second clock.
  • the frequency of the first clock and the frequency of the second clock may be the same.
  • the clock generator 407 may also be configured to The frequency and phase of the first clock are adjusted. When the frequency and phase of the first clock are adjusted, the frequency and phase of the second clock are adjusted synchronously. The adjusted second clock and the adjusted first clock are still synchronized. By timing with the second clock, the processor 408 can obtain a relative time relative to the start time of the first downlink frame.
  • the target optical terminal 401 may be in the off time.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

La présente invention concerne un système PON, qui est appliqué au domaine des communications optiques. Le système PON comprend un terminal de ligne optique et une pluralité de terminaux optiques. Le terminal de ligne optique est utilisé pour envoyer une première trame de liaison descendante à la pluralité de terminaux optiques. La première trame de liaison descendante comprend une pluralité d'éléments de premières données. La pluralité d'éléments de premières données correspondent à une pluralité de créneaux d'une manière biunivoque. Un créneau cible parmi la pluralité de créneaux correspond à des premières données cibles parmi la pluralité d'éléments de premières données. Un terminal optique cible parmi la pluralité de terminaux optiques est utilisé pour recevoir des premières informations en provenance du terminal de ligne optique. Les premières informations comprennent des informations du créneau cible correspondant au terminal optique cible. Le terminal optique cible est utilisé pour acquérir les premières données cibles parmi la pluralité d'éléments de premières données à un moment correspondant aux premières informations dans le créneau cible, et pour réduire la consommation d'énergie du terminal optique cible à des moments correspondant aux premières informations dans des créneaux non cibles. Dans la présente invention, grâce aux informations du créneau cible qui sont transportées dans les premières informations, la consommation d'énergie du terminal optique cible peut être réduite aux moments correspondant aux créneaux non cibles.
PCT/CN2023/142831 2022-12-28 2023-12-28 Système pon, procédé de traitement de données et dispositif associé Ceased WO2024140929A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211700065.8A CN118264938A (zh) 2022-12-28 2022-12-28 Pon系统、数据处理方法及相关设备
CN202211700065.8 2022-12-28

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WO2024140929A1 true WO2024140929A1 (fr) 2024-07-04

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WO (1) WO2024140929A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102461029A (zh) * 2009-06-10 2012-05-16 阿尔卡特朗讯 光网络单元基于调度的有效载荷接收的能量节省操作的系统和方法
US20130011142A1 (en) * 2011-07-07 2013-01-10 Richard Goodson Systems and methods for extending optical network services across non-optical channels
CN103595561A (zh) * 2013-11-06 2014-02-19 电子科技大学 一种宽带接入网的节能方法
CN103703703A (zh) * 2011-07-27 2014-04-02 瑞典爱立信有限公司 光网络的节能动态带宽分配

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102461029A (zh) * 2009-06-10 2012-05-16 阿尔卡特朗讯 光网络单元基于调度的有效载荷接收的能量节省操作的系统和方法
US20130011142A1 (en) * 2011-07-07 2013-01-10 Richard Goodson Systems and methods for extending optical network services across non-optical channels
CN103703703A (zh) * 2011-07-27 2014-04-02 瑞典爱立信有限公司 光网络的节能动态带宽分配
CN103595561A (zh) * 2013-11-06 2014-02-19 电子科技大学 一种宽带接入网的节能方法

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