WO2022068928A1 - Olt接收机参数配置方法、装置、存储介质及电子装置 - Google Patents

Olt接收机参数配置方法、装置、存储介质及电子装置 Download PDF

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Publication number
WO2022068928A1
WO2022068928A1 PCT/CN2021/122174 CN2021122174W WO2022068928A1 WO 2022068928 A1 WO2022068928 A1 WO 2022068928A1 CN 2021122174 W CN2021122174 W CN 2021122174W WO 2022068928 A1 WO2022068928 A1 WO 2022068928A1
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Prior art keywords
olt
receiver
onu
mac
parameters
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PCT/CN2021/122174
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English (en)
French (fr)
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黄新刚
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中兴通讯股份有限公司
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Priority to EP21874582.6A priority Critical patent/EP4224881A4/en
Priority to US18/029,412 priority patent/US20230396333A1/en
Publication of WO2022068928A1 publication Critical patent/WO2022068928A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27Arrangements for networking
    • H04B10/272Star-type networks or tree-type networks
    • H04B10/2725Star-type networks without a headend
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q11/0067Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795Performance monitoring; Measurement of transmission parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40Transceivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0064Arbitration, scheduling or medium access control aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0079Operation or maintenance aspects
    • H04Q2011/0083Testing; Monitoring

Definitions

  • Embodiments of the present invention relate to the field of optical communications, and in particular, to a method, device, storage medium, and electronic device for configuring parameters of an optical line terminal (Optical Line Terminal, OLT) receiver.
  • OLT optical Line Terminal
  • PON Passive Optical Network
  • the uplink of the PON system adopts Time Division Multiple Access (TDMA), and the Optical Network Unit (ONU) sends burst data upstream, and sends data in authorized time slots, and turns off upstream transmission in unauthorized time slots.
  • TDMA Time Division Multiple Access
  • ONU Optical Network Unit
  • the signal power and transmission distance of different ONUs reaching the OLT optical receiver are different, and the device parameters of each ONU transmitter are also inconsistent.
  • the OLT needs to adjust the transimpedance gain, clock recovery, and equalization parameters for each arriving ONU signal to be normal.
  • Receiving the uplink data sent by each ONU results in a long recovery time for OLT burst reception, and the ONU needs to send a long preamble, resulting in high transmission overhead and low uplink transmission efficiency.
  • the OLT burst reception has a long recovery time
  • the ONU needs to send a long preamble
  • the transmission overhead is large
  • the uplink transmission efficiency is low, and no effective solution has been proposed yet.
  • Embodiments of the present invention provide a method, device, storage medium, and electronic device for configuring parameters of an OLT receiver, so as to at least solve the problem in the related art that the OLT burst reception and recovery time is long, the ONU needs to send a long preamble, the transmission overhead is large, and the uplink transmission problem of inefficiency.
  • a method for configuring parameters of an OLT receiver including: an optical line terminal OLT performs burst reception of uplink data sent by an optical network unit ONU, and obtains receiver parameters corresponding to the ONU Described OLT divides described ONU into corresponding receiver parameter grouping according to described receiver parameter; Described OLT configures described receiver parameter corresponding to described ONU to OLT receiver, and receives described ONU in burst upstream data.
  • the OLT divides the ONUs into corresponding receiver parameter groups according to the receiver parameters, which may include: classifying the ONUs according to the receiver parameters determined after the OLT receiver converges into groups corresponding to the receiver parameters.
  • the method may further include: the OLT receiver assigning the receiver parameters to the receiver parameters.
  • the packet number of the machine parameters is sent to the OLT MAC.
  • the OLT receiver sends the packet number of the receiver parameter to the OLT MAC, which may include one of the following: the OLT receiver inserts the packet of the receiver parameter in a preamble sequence number, and send it to the OLT MAC; the OLT receiver sends a first indication signal to the OLT MAC, wherein the first indication signal indicates that uplink data arrives at the ONU corresponding to the OLT MAC Group number.
  • the OLT receiver after the OLT receiver sends the packet number of the receiver parameter to the OLT MAC, it may further include: the OLT MAC extracts the packet number and ONU ID, and sends the packet number and ONU ID to the OLT MAC. The correspondence between the grouping number and the ONU ID is stored in the MAC register.
  • the OLT configures the receiver parameters corresponding to the ONU to the OLT receiver, which may include: the OLT MAC obtains uplink data according to the DBA to the ONU of the OLT receiver The described grouping number where it is located; the OLT MAC sends the corresponding reception to the OLT receiver after the upstream data transmission of the previous one or a group of ONUs ends, before the upstream data transmission of the next or a group of ONUs arrives machine parameter information; the OLT receiver takes the corresponding next or group of receiver parameter configuration into effect according to the receiver parameter information.
  • the OLT configures the receiver parameters corresponding to the ONU to the OLT receiver, which may include: the OLT makes the uplink data of each ONU group arrive in a predetermined order by scheduling the DBA the OLT receiver; the OLT MAC sends a second indication signal to the OLT receiver to instruct the OLT receiver to replace the receiver parameters of each ONU group in a predetermined order; the OLT receiver The second indication signal makes the receiver parameter configuration of the next group of ONUs effective.
  • the receiver parameters of the ONU may include at least one of the following: TIA AGC gain, TIA VGA gain, BCDR phase parameter, and equalizer tap coefficient.
  • an OLT comprising: an OLT receiver configured to perform burst reception of uplink data sent by an optical network unit ONU, and obtain receiver parameters corresponding to the ONU, and Divide the ONU into corresponding receiver parameter groups according to the receiver parameters; OLT MAC, set to configure the receiver parameters corresponding to the ONU to the OLT receiver, and receive the ONU in bursts upstream data.
  • the OLT receiver is further configured to send the packet number of the receiver parameter to the OLT MAC.
  • the OLT receiver sends the packet number in one of the following ways: by inserting the packet number of the receiver parameter into the preamble sequence of the uplink data and then sending it to the OLT MAC; by Send a first indication signal to the OLT MAC, wherein the first indication signal represents the packet number corresponding to the ONU of the OLT MAC where uplink data arrives.
  • the first indication signal is sent through one of the following interfaces: an I2C interface, an MDIO interface, a custom interface, and an indication pin.
  • the OLT MAC is further configured to extract the grouping number and the ONU ID, and store the corresponding relationship between the grouping number and the ONU ID in the MAC register.
  • the OLT MAC is further configured to obtain, according to the DBA, the group number of the ONU where the upstream data arrives at the OLT receiver, and to obtain the upstream data of the ONU of the previous or group of ONUs.
  • the corresponding receiver parameter information is sent to the OLT receiver; the OLT receiver is also set to correspond to the next or one according to the receiver parameter information.
  • the group receiver parameter configuration takes effect.
  • the OLT MAC is further configured to make the uplink data of each ONU group arrive at the OLT receiver in a predetermined order by scheduling the DBA, and send a second indication signal to the OLT receiver for to instruct the OLT receiver to replace the receiver parameters of each ONU group in a predetermined order; the OLT receiver is also set to take effect of the receiver parameter configuration of the next group of ONUs according to the second instruction signal.
  • the receiver parameters of the ONU include at least one of the following: TIA AGC gain, TIA VGA gain, BCDR phase parameter, and equalizer tap coefficient.
  • the receiver parameter grouping is stored in a lookup table of the OLT receiver, or in a lookup table of the OLT MAC, or in the OLT MAC on a system board of the OLT In the lookup table of the registers that can be read and written.
  • a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any one of the above methods when running steps in the examples.
  • an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor is configured to run the computer program to execute any of the above Steps in Method Examples.
  • the corresponding parameters are configured to the OLT receiver in advance. After the ONU data arrives at the OLT receiver, the OLT only needs to fine-tune or not need to be adjusted to receive the uplink data, thereby speeding up the uplink burst reception recovery time and reducing the preamble overhead.
  • FIG. 1 is a flowchart of a method for configuring parameters of an OLT receiver according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of an optical line terminal OLT according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a look-up table stored in an OLT receiver according to an optional embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an OLT receiver inserting a packet number in a preamble sequence according to an optional embodiment of the present invention
  • FIG. 5 is a schematic diagram of an OLT receiver that sends an indication signal to an OLT MAC according to an optional embodiment of the present invention
  • FIG. 6 is a schematic diagram of an OLT MAC corresponding to a packet indication signal to an OLT receiver according to an optional embodiment of the present invention
  • FIG. 7 is a schematic diagram of an OLT MAC representing an instruction signal for updating receiver parameters to an OLT receiver according to an optional embodiment of the present invention
  • FIG. 8 is a schematic diagram of an independent BCDR and equalizer integrated chip according to an alternative embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a BCDR and an equalizer integrated chip integrated with a MAC chip according to an optional embodiment of the present invention.
  • FIG. 10 is a schematic diagram of specific values of N groups of receiver parameters stored in an OLT MAC according to an optional embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an OLT receiver inserting receiver parameter information into a preamble sequence according to an optional embodiment of the present invention
  • FIG. 12 is a schematic diagram of an OLT receiver that transmits receiver parameter information to an OLT MAC according to an optional embodiment of the present invention
  • FIG. 13 is a schematic diagram of an OLT MAC corresponding to receiver parameter information for an OLT receiver according to an optional embodiment of the present invention
  • FIG. 14 is a schematic diagram of an OLT MAC that transmits receiver parameter information to an OLT receiver according to an optional embodiment of the present invention
  • 15 is a schematic diagram of the equalizer tap coefficients sent to the OLT MAC through the I2C structure of the chip according to an optional embodiment of the present invention
  • FIG. 16 is a schematic diagram of the OLT MAC delivering corresponding parameters to the OLT optical receiver and the BCDR and equalizer chips according to an optional embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for configuring parameters for an OLT receiver according to an embodiment of the present invention. As shown in FIG. 1 , the flowchart includes the following steps:
  • Step S101 the optical line terminal OLT performs burst reception on the uplink data sent by the optical network unit ONU, and obtains receiver parameters corresponding to the ONU.
  • Step S102 the OLT divides the ONU into corresponding receiver parameter groups according to the receiver parameters.
  • Step S103 the OLT configures the receiver parameters corresponding to the ONU to the OLT receiver, and receives the uplink data of the ONU in bursts.
  • step S102 may include: dividing the ONU into corresponding receiver parameter groups according to the receiver parameters determined after the OLT receiver converges.
  • the method may further include: the OLT receiver assigning the receiver parameter The packet number is sent to the OLT MAC.
  • the OLT receiver sends the group number of the receiver parameter to the OLT MAC, which may include one of the following: the OLT receiver inserts the group number of the receiver parameter in the preamble sequence, and sent to the OLT MAC; the OLT receiver sends a first indication signal to the OLT MAC, wherein the first indication signal indicates that uplink data reaches the packet number corresponding to the ONU of the OLT MAC .
  • the OLT receiver may further include: the OLT MAC extracts the group number and the ONU ID, and assigns the group number to the OLT MAC.
  • the corresponding relationship with the ONU ID is stored in the MAC register.
  • step S103 may include: the OLT MAC obtains, according to the DBA, the group number of the ONU where the uplink data arrives at the OLT receiver; After the above-mentioned uplink data transmission is completed, before the uplink data transmission of the next or a group of ONUs arrives, the corresponding receiver parameter information is sent to the OLT receiver; the OLT receiver will correspond to the next or one according to the receiver parameter information.
  • the group receiver parameter configuration takes effect.
  • step S103 may include: the OLT makes the uplink data of each ONU group arrive at the OLT receiver in a predetermined order by scheduling the DBA; the OLT MAC sends a second indication to the OLT receiver The signal is used to instruct the OLT receiver to replace the receiver parameters of each ONU group in a predetermined order; the OLT receiver takes the receiver parameter configuration of the next group of ONUs into effect according to the second instruction signal.
  • the receiver parameters of the ONU may include at least one of the following: TIA AGC gain, TIA VGA gain, BCDR phase parameter, and equalizer tap coefficient.
  • the OLT since the ONU data arrives at the OLT receiver, the OLT only needs to fine-tune or not need to be adjusted to receive the uplink data, which solves the problem of the long recovery time of the OLT burst reception in the related art, the ONU needs to send a long preamble, and the transmission overhead
  • the problem is that the uplink transmission efficiency is low, and the effect of speeding up the uplink burst reception recovery time and reducing the preamble overhead is achieved.
  • an apparatus for configuring parameters of an OLT receiver is also provided, and the apparatus is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.
  • FIG. 2 is a structural block diagram of an optical line terminal OLT according to an embodiment of the present invention. As shown in FIG. 2 , the OLT includes an OLT receiver 10 and an OLT MAC 20.
  • the OLT receiver 10 is configured to perform burst reception on the uplink data sent by the optical network unit ONU, obtain receiver parameters corresponding to the ONU, and divide the ONU into corresponding receivers according to the receiver parameters parameter grouping.
  • the OLT MAC 20 is configured to configure the receiver parameters corresponding to the ONU to the OLT receiver, and to receive the upstream data of the ONU in bursts.
  • the OLT receiver 10 is further configured to send the group number of the receiver parameter to the OLT MAC 20.
  • the OLT receiver 10 sends the packet number in one of the following ways: by inserting the packet number of the receiver parameter into the preamble sequence of the uplink data and then sending it to the OLT MAC 20; By sending a first indication signal to the OLT MAC 20, wherein the first indication signal represents the packet number corresponding to the ONU of the OLT MAC 20 where uplink data arrives.
  • the first indication signal is sent through one of the following interfaces: an I2C interface, an MDIO interface, a custom interface, and an indication pin.
  • the OLT MAC 20 is also set to extract the grouping number and the ONU ID, and save the corresponding relationship between the grouping number and the ONU ID in the MAC register.
  • the OLT MAC 20 is further configured to obtain the group number of the ONU where the upstream data arrives at the OLT receiver 10 according to the DBA, and to obtain the upstream data of the previous ONU or a group of ONUs.
  • the corresponding receiver parameter information is sent to the OLT receiver 10; the OLT receiver is also set to correspond to the next or next according to the receiver parameter information.
  • a set of receiver parameter configuration takes effect.
  • the OLT MAC 20 is further configured to schedule the DBA so that the uplink data of each ONU group arrives at the OLT receiver in a predetermined order, and send a second indication signal to the OLT receiver 10 for use in To instruct the OLT receiver 10 to replace the receiver parameters of each ONU group in a predetermined order; the OLT receiver 10 is further set to take effect of the receiver parameter configuration of the next group of ONUs according to the second instruction signal.
  • the receiver parameters of the ONU include at least one of the following: TIA AGC gain, TIA VGA gain, BCDR phase parameter, and equalizer tap coefficient.
  • the receiver parameter group is stored in the look-up table of the OLT receiver 10, or in the look-up table of the OLT MAC 20, or in the OLT MAC on the OLT system board 20 readable and writable registers in a lookup table.
  • each functional module is located in the same processor; or, each of the above-mentioned functional modules They are located in different processors in any combination.
  • This embodiment proposes a fast self-adaptive burst receiving method to solve the problem of large upstream preamble overhead in the PON system.
  • the specific method is that the ONUs are divided into N groups, and each group of ONUs corresponds to a group of OLT receiver parameters, including transimpedance gain, clock frequency, phase, and equalization coefficient.
  • OLT Before the OLT receives ONU data, configure the corresponding parameters to the OLT receiver in advance. After the ONU data arrives at the OLT receiver, the OLT can receive uplink data only with fine-tuning or without adjustment, thereby speeding up the uplink burst reception recovery time and reducing the preamble overhead.
  • FIG. 3 is a schematic diagram of a look-up table stored in an OLT receiver according to an optional embodiment of the present invention. As shown in FIG. 3 , the specific values of N groups of receiver parameters may be one stored in the OLT receiver. lookup table.
  • the OLT receives the received ONU data in bursts, and obtains the receiver parameters corresponding to the ONU.
  • the ONU is classified into a corresponding receiver parameter group according to the receiver parameters determined after the receiver converges.
  • the OLT receiver sends the determined corresponding packet number to the OLT MAC.
  • FIG. 4 is a schematic diagram of an OLT receiver inserting a packet number in a preamble sequence according to an optional embodiment of the present invention.
  • the OLT receiver inserts a packet number in the preamble sequence, and the OLT MAC receives the packet number.
  • the OLT MAC receives the packet number.
  • the ONU uplink data extract the group number and ONU ID, and save the corresponding relationship in the MAC register for fast recovery in the working phase.
  • FIG. 5 is a schematic diagram of an OLT receiver that sends an indication signal to an OLT MAC according to an optional embodiment of the present invention.
  • the OLT receiver sends an indication signal to the OLT MAC, and the indication signal indicates that the OLT MAC arrives The group number corresponding to the ONU.
  • the indication signal can be through the I2C interface, or a dedicated indication signal pin.
  • the OLT pre-configures the receiver parameters corresponding to the ONU to the OLT receiver. After the ONU data arrives, it can quickly converge to achieve fast burst reception.
  • Fig. 6 is a schematic diagram of the OLT MAC corresponding to the packet indication signal to the OLT receiver according to an optional embodiment of the present invention.
  • the OLT MAC can know the packet of the ONU arriving at the receiver according to the DBA.
  • OLT MAC sends a corresponding grouping indication signal to the OLT receiver after the end of the previous ONU data or a group of ONU data and before the arrival of the next ONU data or a group of ONU data, and the OLT receiver will make the corresponding next or group of receiver parameter configuration valid according to the indication signal.
  • the indication signal can be through the I2C interface, or a dedicated indication signal pin.
  • FIG. 7 is a schematic diagram of an OLT MAC representing an instruction signal for updating receiver parameters to an OLT receiver according to an optional embodiment of the present invention.
  • the OLT is scheduled by DBA to allow ONUs arriving at the OLT receiver.
  • the groups are in a fixed order, such as the first group of ONUs, the second group of ONUs, ..., the Nth group of ONUs, the first group of ONUs, the second group of ONUs, ....
  • the OLT MAC indicates to the OLT receiver an instruction signal to update the receiver parameters, and the instruction signal can be a pulse signal, a level jump signal, or other instruction signals. After the OLT receiver receives the indication signal, the configuration of the next group of receiver parameters takes effect.
  • FIG. 3 is a schematic diagram of a lookup table stored in an OLT receiver according to an optional embodiment of the present invention. As shown in FIG. 3 , the specific values of N groups of receiver parameters may be one stored in the OLT receiver. Lookup tables including TIA AGC gain, TIA VGA gain, BCDR phase parameters, equalizer tap coefficients, etc.
  • the OLT performs burst reception of the received ONU data, and obtains the receiver parameters corresponding to the ONU, including TIA AGC gain, TIA VGA gain, BCDR phase parameters, equalizer tap coefficients, etc.
  • the ONU is classified into a corresponding receiver parameter group according to the receiver parameters determined after the receiver converges.
  • the OLT receiver sends the determined corresponding packet number to the OLT MAC.
  • FIG. 4 is a schematic diagram of an OLT receiver inserting a packet number in a preamble sequence according to an optional embodiment of the present invention.
  • the OLT receiver inserts a packet number in the preamble sequence, and the OLT MAC receives the packet number.
  • the OLT MAC receives the packet number.
  • the ONU uplink data extract the group number and ONU ID, and save the corresponding relationship in the MAC register for fast recovery in the working phase.
  • FIG. 5 is a schematic diagram of an OLT receiver that sends an indication signal to an OLT MAC according to an optional embodiment of the present invention.
  • the OLT receiver sends an indication signal to the OLT MAC, and the indication signal indicates that the OLT MAC arrives The group number corresponding to the ONU.
  • the indication signal can be through I2C, MDIO interface, or custom interface or indication pin.
  • FIG. 8 is a schematic diagram of an independent BCDR and an equalizer integrated chip according to an optional embodiment of the present invention
  • FIG. 9 is a BCDR and an equalizer integrated with a MAC chip according to an optional embodiment of the present invention.
  • the OLT pre-configures the receiver parameters corresponding to the ONU to the OLT receiver. After the ONU data arrives, it can quickly converge to achieve fast burst reception.
  • Fig. 6 is a schematic diagram of the OLT MAC corresponding to the packet indication signal to the OLT receiver according to an optional embodiment of the present invention.
  • the OLT MAC can know the packet of the ONU arriving at the receiver according to the DBA.
  • OLT MAC sends a corresponding grouping indication signal to the OLT receiver after the end of the previous ONU data or a group of ONU data and before the arrival of the next ONU data or a group of ONU data, and the OLT receiver will make the corresponding next or group of receiver parameter configuration valid according to the indication signal. , including TIA AGC gain, TIA VGA gain, BCDR phase parameters, equalizer tap coefficients, etc.
  • the indication signal can be through I2C, MDIO interface, or custom interface or indication pin.
  • FIG. 7 is a schematic diagram of an OLT MAC representing an instruction signal for updating receiver parameters to an OLT receiver according to an optional embodiment of the present invention.
  • the OLT is scheduled by DBA to allow ONUs arriving at the OLT receiver.
  • the groups are in a fixed order, such as the first group of ONUs, the second group of ONUs, ..., the Nth group of ONUs, the first group of ONUs, the second group of ONUs, ....
  • the OLT MAC indicates to the OLT receiver an instruction signal to update the receiver parameters, and the instruction signal can be a pulse signal, a level jump signal, or other instruction signals. After the OLT receiver receives the indication signal, the configuration of the next group of receiver parameters takes effect.
  • FIG. 10 is a schematic diagram of the specific values of N groups of receiver parameters stored in the OLT MAC according to an optional embodiment of the present invention.
  • the specific values of N groups of receiver parameters can be stored in the OLT MAC. , or a lookup table in a register that the MAC can read and write on the system board.
  • the OLT receives the received ONU data in bursts, and obtains the receiver parameters corresponding to the ONU.
  • the OLT receiver sends the receiver parameters determined after convergence to the OLT MAC.
  • the OLT MAC assigns the ONU to the corresponding receiver parameter group according to the received receiver parameters.
  • FIG. 11 is a schematic diagram of an OLT receiver inserting receiver parameter information into a preamble sequence according to an optional embodiment of the present invention.
  • the OLT receiver inserts receiver parameter information into the preamble sequence, and the OLT After the MAC receives the ONU uplink data, it extracts the receiver parameter information and ONU ID, determines the ONU grouping, and saves the corresponding relationship in the MAC register for fast recovery in the working phase.
  • FIG. 12 is a schematic diagram of an OLT receiver that transmits receiver parameter information to an OLT MAC according to an optional embodiment of the present invention.
  • the OLT receiver sends an indication signal to the OLT MAC, and the indication signal indicates that the arrival of Receiver parameter information corresponding to the ONU of the OLT MAC.
  • the indication signal can be through the I2C interface, or a dedicated indication signal pin.
  • the OLT pre-configures the receiver parameters corresponding to the ONU to the OLT receiver. After the ONU data arrives, it can quickly converge to achieve fast burst reception.
  • FIG. 13 is a schematic diagram of the OLT MAC corresponding to the receiver parameter information for the OLT receiver according to an optional embodiment of the present invention.
  • the OLT MAC can know the packet of the ONU arriving at the receiver according to the DBA.
  • OLT MAC gives the OLT receiver corresponding receiver parameter information after the end of the previous ONU data or a group of ONU data, and before the next or group of ONU data arrives, and the OLT receiver corresponds to the next receiver or group of receivers
  • the parameter configuration takes effect.
  • the receiver parameter information can be through the I2C interface, or a dedicated receiver parameter information pin.
  • FIG. 14 is a schematic diagram of an OLT MAC that transmits receiver parameter information to an OLT receiver according to an optional embodiment of the present invention.
  • the OLT schedules the OLT through DBA, so that the ONU groups arriving at the OLT receiver follow a fixed order, such as the first group of ONUs, the second group of ONUs, ..., the Nth group of ONUs, the first group of ONUs, the second group of ONUs, ....
  • the OLT MAC sends receiver parameter information to the OLT receiver. After the OLT receiver receives the receiver parameter information, the receiver parameter configuration takes effect.
  • the OLT pre-configures the receiver parameters corresponding to the ONU to the OLT receiver. After the ONU data arrives, it can quickly converge to achieve fast burst reception.
  • the OLT MAC sends the OLT receiver parameter lookup table information to the OLT receiver through the communication interface with the OLT receiver, and the OLT receiver stores the information in the receiver register.
  • Fig. 6 is a schematic diagram of the OLT MAC corresponding to the packet indication signal to the OLT receiver according to an optional embodiment of the present invention.
  • the OLT MAC can know the packet of the ONU arriving at the receiver according to the DBA.
  • OLT MAC sends a corresponding grouping indication signal to the OLT receiver after the end of the previous ONU data or a group of ONU data and before the arrival of the next ONU data or a group of ONU data, and the OLT receiver will make the corresponding next or group of receiver parameter configuration valid according to the indication signal.
  • the indication signal can be through the I2C interface, or a dedicated indication signal pin.
  • FIG. 7 is a schematic diagram of an OLT MAC representing an instruction signal for updating receiver parameters to an OLT receiver according to an optional embodiment of the present invention.
  • the OLT is scheduled by DBA to allow ONUs arriving at the OLT receiver.
  • the groups are in a fixed order, such as the first group of ONUs, the second group of ONUs, ..., the Nth group of ONUs, the first group of ONUs, the second group of ONUs, ....
  • the indication signal from the OLT MAC to the OLT receiver indicates the replacement of receiver parameters, and the indication signal can be a pulse signal, a level jump signal, or other indication signals. After the OLT receiver receives the indication signal, the configuration of the next group of receiver parameters takes effect.
  • FIG. 10 is a schematic diagram of the specific values of N groups of receiver parameters stored in the OLT MAC according to an optional embodiment of the present invention.
  • the specific values of N groups of receiver parameters can be stored in the OLT MAC. , or a lookup table in a register that the MAC can read and write on the system board, including TIA AGC gain, TIA VGA gain, BCDR phase parameters, equalizer tap coefficients, etc.
  • the TIA is located in the optical receiver of the OLT optical module, and the BCDR and equalizer chips are located on the OLT system board.
  • FIG. 15 is a schematic diagram of the equalizer tap coefficients sent to the OLT MAC through the I2C structure of the chip according to an optional embodiment of the present invention.
  • the OLT performs burst reception on the received ONU data, Obtain the receiver parameters corresponding to the ONU, including TIA AGC gain, TIA VGA gain, BCDR phase parameters, equalizer tap coefficients, etc.
  • the OLT optical receiver sends the TIA parameters determined after convergence to the OLT MAC through the optical module I2C.
  • the BCDR and the equalizer chip send the BCDR phase parameters determined after convergence, and the equalizer tap coefficients to the OLT MAC through the I2C structure of the chip, and the OLT MAC assigns the ONU to the corresponding receiver parameter group according to the received receiver parameters.
  • the OLT pre-configures the receiver parameters of the corresponding ONU to the OLT receiver. After the ONU data arrives, it can quickly converge to achieve fast burst reception.
  • Fig. 16 is a schematic diagram of the OLT MAC delivering corresponding parameters to the OLT optical receiver and the BCDR and equalizer chips according to an optional embodiment of the present invention.
  • the OLT MAC can know the data arriving at the receiver according to the DBA. The group where the ONU is located.
  • the OLT MAC sends the corresponding TIA AGC gain and TIA VGA gain to the OLT optical receiver through the I2C interface after the end of the previous ONU data or before the next ONU data arrives, and sends the corresponding TIA AGC gain and TIA VGA gain to the BCDR and equalizer chips.
  • the TIA chip of the OLT optical receiver and the BCDR and equalizer chips take the parameter information sent by the OLT MAC into effect.
  • this embodiment proposes a fast adaptive burst receiving method to solve the problem of high upstream preamble overhead in a PON system.
  • the specific method is that the ONUs are divided into N groups, and each group of ONUs corresponds to a group of OLT receiver parameters, including transimpedance gain, clock frequency, phase, and equalization coefficient.
  • OLT Before the OLT receives ONU data, configure the corresponding parameters to the OLT receiver in advance. After the ONU data arrives at the OLT receiver, the OLT can receive uplink data only with fine-tuning or without adjustment, thereby speeding up the uplink burst reception recovery time and reducing the preamble overhead.
  • Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.
  • the above-mentioned computer-readable storage medium may include, but is not limited to, a USB flash drive, a read-only memory (Read-Only Memory, referred to as ROM for short), and a random access memory (Random Access Memory, referred to as RAM for short) , mobile hard disk, magnetic disk or CD-ROM and other media that can store computer programs.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • An embodiment of the present invention also provides an electronic device, comprising a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device, or distributed in a network composed of multiple computing devices
  • they can be implemented in program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, can be performed in a different order than shown here.
  • the described steps, or they are respectively made into individual integrated circuit modules, or a plurality of modules or steps in them are made into a single integrated circuit module to realize.
  • the present invention is not limited to any particular combination of hardware and software.

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Abstract

本发明实施例提供了一种OLT接收机参数配置方法、装置、存储介质及电子装置,该方法包括:光线路终端OLT对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数;所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组;所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,并突发接收所述ONU的上行数据。在本发明中,OLT接收ONU数据前,提前将对应的参数配置到OLT接收机,在ONU数据到达OLT接收机后,OLT只需要微调或者不需要调节,就可以接收上行数据,从而加快上行突发接收恢复时间,减小了前导开销。

Description

OLT接收机参数配置方法、装置、存储介质及电子装置
相关申请的交叉引用
本申请基于2020年9月30日提交的发明名称为“OLT接收机参数配置方法、装置、存储介质及电子装置”的中国专利申请CN202011062696.2,并且要求该专利申请的优先权,通过引用将其所公开的内容全部并入本申请。
技术领域
本发明实施例涉及光通信领域,具体而言,涉及一种光线路终端(Optical Line Terminal,OLT)接收机参数配置方法、装置、存储介质及电子装置。
背景技术
无源光网络(Passive Optical Network,PON)是一种点到多点的树状网络结构。由于PON具有网络结构简单、光纤资源共享、成本低、外部不需要安装有源设备等特点,因此,PON被公认为最有发展前途的光纤接入技术。
PON系统上行采用时分多址接入(Time Division Multiple Access,TDMA),光网络单元(Optical Network Unit,ONU)上行发送突发数据,在授权时隙内发送数据,未授权时隙关闭上行发送。不同ONU到达OLT光接收机的信号功率、传输距离各不相同,各个ONU发射机器件参数也不一致,OLT需要对每一个到达的ONU信号进行跨阻增益调节、时钟恢复、均衡参数收敛,才能正常接收各个ONU发送的上行数据,导致OLT突发接收恢复时间长,ONU需要发送长的前导,传输开销大,上行传输效率低。
针对相关技术中OLT突发接收恢复时间长,ONU需要发送长的前导,传输开销大,上行传输效率低的问题,目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种OLT接收机参数配置方法、装置、存储介质及电子装置,以至少解决相关技术中OLT突发接收恢复时间长,ONU需要发送长的前导,传输开销大,上行传输效率低的问题。
根据本发明的一个实施例,提供了一种OLT接收机参数配置方法,包括:光线路终端OLT对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数;所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组;所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,并突发接收所述ONU的上行数据。
在一个示例性实施例中,所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组,可以包括:根据OLT接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组。
在一个示例性实施例中,在根据接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组之后,还可以包括:所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC。
在一个示例性实施例中,所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC, 可以包括以下之一:所述OLT接收机在前导序列中插入所述接收机参数的分组编号,并发送至所述OLT MAC;所述OLT接收机向所述OLT MAC发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC的所述ONU对应的所述分组编号。
在一个示例性实施例中,在所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC之后,还可以包括:所述OLT MAC提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
在一个示例性实施例中,所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,可以包括:所述OLT MAC根据DBA获取上行数据到达所述OLT接收机的所述ONU所在的所述分组编号;所述OLT MAC在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机发送对应的接收机参数信息;所述OLT接收机根据接收机参数信息将对应下一个或一组接收机参数配置生效。
在一个示例性实施例中,所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,可以包括:所述OLT通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机;所述OLT MAC向所述OLT接收机发送第二指示信号用于指示所述OLT接收机按照预定顺序更换各ONU组的接收机参数;所述OLT接收机根据所述第二指示信号将下一组ONU的接收机参数配置生效。
在一个示例性实施例中,所述ONU的接收机参数,至少可以包括以下之一:TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
根据本发明的另一个实施例,提供了一种OLT,包括:OLT接收机,设置为对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数,并根据所述接收机参数将所述ONU划分到对应的接收机参数分组;OLT MAC,设置为将对应所述ONU的所述接收机参数配置到所述OLT接收机,并突发接收所述ONU的上行数据。
在一个示例性实施例中,所述OLT接收机,还设置为将所述接收机参数的分组编号发送给OLT MAC。
在一个示例性实施例中,所述OLT接收机通过以下方式之一发送所述分组编号:通过在上行数据的前导序列中插入所述接收机参数的分组编号后发送至所述OLT MAC;通过向所述OLT MAC发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC的所述ONU对应的所述分组编号。
在一个示例性实施例中,所述第一指示信号通过以下之一接口发送:I2C接口,MDIO接口,自定义接口,指示管脚。
在一个示例性实施例中,OLT MAC中还设置为提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
在一个示例性实施例中,所述OLT MAC还设置为根据DBA获取上行数据到达所述OLT接收机的所述ONU所在的所述分组编号,并在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机发送对应的接收机参数信息;所述OLT接收机还设置为根据接收机参数信息将对应下一个或一组接收机参数配置生效。
在一个示例性实施例中,所述OLT MAC还设置为通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机,并向所述OLT接收机发送第二指示信号用于指示所述OLT接收机按照预定顺序更换各ONU组的接收机参数;所述OLT接收机还设置为根据所述 第二指示信号将下一组ONU的接收机参数配置生效。
在一个示例性实施例中,所述ONU的接收机参数至少包括以下之一:TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
在一个示例性实施例中,所述接收机参数分组保存在所述OLT接收机的查找表中,或保存在所述OLT MAC的查找表中,或保存在OLT的系统板上所述OLT MAC可以读写的寄存器的查找表中。
根据本发明的又一个实施例,还提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本发明的又一个实施例,还提供了一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
通过本发明的上述实施例,OLT接收ONU数据前,提前将对应的参数配置到OLT接收机。ONU数据到达OLT接收机后,OLT只需要微调或者不需要调节,就可以接收上行数据,从而加快上行突发接收恢复时间,减小了前导开销。
附图说明
图1是根据本发明实施例的OLT接收机参数配置方法的流程图;
图2是根据本发明实施例的光线路终端OLT的结构框图;
图3是根据本发明可选实施例的保存在OLT接收机中的查找表的示意图;
图4是根据本发明可选实施例的在前导序列中插入分组编号的OLT接收机的示意图;
图5是根据本发明可选实施例的给OLT MAC发送指示信号的OLT接收机的示意图;
图6是根据本发明可选实施例的给OLT接收机对应分组指示信号的OLT MAC的示意图;
图7是根据本发明可选实施例的给OLT接收机表示更新接收机参数的指示信号的OLT MAC的示意图;
图8是根据本发明可选实施例的独立的BCDR和均衡器集成芯片的示意图;
图9是根据本发明可选实施例的跟MAC芯片集成在一起的BCDR和均衡器集成芯片的示意图;
图10是根据本发明可选实施例的保存在OLT MAC中的N组接收机参数具体值的示意图;
图11是根据本发明可选实施例的在前导序列中插入接收机参数信息的OLT接收机的示意图;
图12是根据本发明可选实施例的给OLT MAC发送接收机参数信息的OLT接收机的示意图;
图13是根据本发明可选实施例的给OLT接收机对应接收机参数信息的OLT MAC的示意图;
图14是根据本发明可选实施例的给OLT接收机发送接收机参数信息的OLT MAC的示意图;
图15是根据本发明可选实施例的通过芯片的I2C结构发送给OLT MAC的均衡器抽头系数的示意图;
图16是根据本发明可选实施例的OLT MAC给OLT光接收机和BCDR和均衡器芯片下发对应参数的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明的实施例。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种OLT接收机参数配置方法,图1是根据本发明实施例的OLT接收机参数配置方法的流程图,如图1所示,该流程包括如下步骤:
步骤S101,光线路终端OLT对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数。
步骤S102,所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组。
步骤S103,所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,并突发接收所述ONU的上行数据。
在本实施例中,步骤S102可以包括:根据OLT接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组。
在本实施例中,在根据接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组之后,还可以包括:所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC。
在本实施例中,所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC,可以包括以下之一:所述OLT接收机在前导序列中插入所述接收机参数的分组编号,并发送至所述OLT MAC;所述OLT接收机向所述OLT MAC发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC的所述ONU对应的所述分组编号。
在本实施例中,在所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC之后,还可以包括:所述OLT MAC提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
在本实施例中,步骤S103可以包括:所述OLT MAC根据DBA获取上行数据到达所述OLT接收机的所述ONU所在的所述分组编号;所述OLT MAC在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机发送对应的接收机参数信息;所述OLT接收机根据接收机参数信息将对应下一个或一组接收机参数配置生效。
在本实施例中,步骤S103可以包括:所述OLT通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机;所述OLT MAC向所述OLT接收机发送第二指示信号用于指示所述OLT接收机按照预定顺序更换各ONU组的接收机参数;所述OLT接收机根据所述第二指示信号将下一组ONU的接收机参数配置生效。
在本实施例中,所述ONU的接收机参数,至少可以包括以下之一:TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
通过上述步骤,由于ONU数据到达OLT接收机后,OLT只需要微调或者不需要调节,就可以接收上行数据,解决了相关技术中OLT突发接收恢复时间长,ONU需要发送长的前导,传输开销大,上行传输效率低的问题,达到了加快上行突发接收恢复时间,减小前导开销的效果。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡 献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种OLT接收机参数配置装置,该装置用于实现上述实施例及优选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的光线路终端OLT的结构框图,如图2所示,该OLT包括OLT接收机10和OLT MAC 20。
OLT接收机10,设置为对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数,并根据所述接收机参数将所述ONU划分到对应的接收机参数分组。
OLT MAC 20,设置为将对应所述ONU的所述接收机参数配置到所述OLT接收机,并突发接收所述ONU的上行数据。
在本实施例中,所述OLT接收机10还设置为将所述接收机参数的分组编号发送给OLT MAC 20。
在本实施例中,,所述OLT接收机10通过以下方式之一发送所述分组编号:通过在上行数据的前导序列中插入所述接收机参数的分组编号后发送至所述OLT MAC 20;通过向所述OLT MAC 20发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC 20的所述ONU对应的所述分组编号。
在本实施例中,所述第一指示信号通过以下之一接口发送:I2C接口,MDIO接口,自定义接口,指示管脚。
在本实施例中,OLT MAC 20还设置为提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
在本实施例中,所述OLT MAC 20还设置为根据DBA获取上行数据到达所述OLT接收机10的所述ONU所在的所述分组编号,并在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机10发送对应的接收机参数信息;所述OLT接收机还设置为根据接收机参数信息将对应下一个或一组接收机参数配置生效。
在本实施例中,所述OLT MAC 20还设置为通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机,并向所述OLT接收机10发送第二指示信号用于指示所述OLT接收机10按照预定顺序更换各ONU组的接收机参数;所述OLT接收机10还设置为根据所述第二指示信号将下一组ONU的接收机参数配置生效。
在本实施例中,所述ONU的接收机参数至少包括以下之一:TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
在本实施例中,所述接收机参数分组保存在所述OLT接收机10的查找表中,或保存在所述OLT MAC 20的查找表中,或保存在OLT的系统板上所述OLT MAC 20可以读写的寄存器的查找表中。
需要说明的是,上述OLT的功能模块可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:各功能模块均位于同一处理器中;或者,上述各个功能模块 以任意组合的形式分别位于不同的处理器中。
为了便于对本发明所提供的技术方案的理解,下面将结合具体场景的实施例进行详细阐述。
本实施例提出了一种快速自适应突发接收方法解决PON系统上行前导开销大的问题。具体方法为ONU分成N组,每组ONU对应一组OLT接收机参数,具体包括跨阻增益、时钟频率、相位、均衡系数等。OLT接收ONU数据前,提前将对应的参数配置到OLT接收机。ONU数据到达OLT接收机后,OLT只需要微调或者不需要调节,就可以接收上行数据,从而加快上行突发接收恢复时间,减小前导开销。
实施例一,图3是根据本发明可选实施例的保存在OLT接收机中的查找表的示意图,如图3所示,N组接收机参数具体值可以是保存在OLT接收机中的一个查找表。
在注册阶段,OLT对接收到的ONU数据进行突发接收,获得对应该ONU的接收机参数。根据接收机收敛后确定的接收机参数将该ONU划归到对应接收机参数分组。OLT接收机将确定的对应分组编号发送给OLT MAC。
具体的,图4是根据本发明可选实施例的在前导序列中插入分组编号的OLT接收机的示意图,如图4所示,OLT接收机在前导序列中插入分组编号,OLT MAC接收到该ONU上行数据后,提取分组编号和ONU ID,并将该对应关系保存在MAC寄存器中,用于工作阶段快速恢复。
具体的,图5是根据本发明可选实施例的给OLT MAC发送指示信号的OLT接收机的示意图,如图5所示,OLT接收机给OLT MAC发送指示信号,该指示信号表示到达OLT MAC的ONU对应的分组编号。该指示信号可以通过I2C接口,或者专用的指示信号管脚。
在工作阶段,OLT将对应ONU的接收机参数预先配置到OLT接收机,ONU数据到达后,可以快速收敛,实现快速突发接收。
具体的,图6是根据本发明可选实施例的给OLT接收机对应分组指示信号的OLT MAC的示意图,如图6所示,OLT MAC根据DBA可以知道到达接收机的ONU所在分组。OLT MAC在上一个或一组ONU数据结束后,下一个或一组ONU数据到达前,给OLT接收机对应分组指示信号,OLT接收机根据指示信号将对应下一个或一组接收机参数配置生效。该指示信号可以通过I2C接口,或者专用的指示信号管脚。
具体的,图7是根据本发明可选实施例的给OLT接收机表示更新接收机参数的指示信号的OLT MAC的示意图,如图7所示,OLT通过DBA调度,让到达OLT接收机的ONU组按照固定的顺序,如先是第一组ONU,第二组ONU,……,第N组ONU,第一组ONU,第二组ONU,……。OLT MAC给OLT接收机表示更新接收机参数的指示信号,该指示信号可以是脉冲信号,或电平跳变信号,等指示信号。OLT接收机接到该指示信号后,将下一组接收机参数配置生效。
实施例二,图3是根据本发明可选实施例的保存在OLT接收机中的查找表的示意图,如图3所示,N组接收机参数具体值可以是保存在OLT接收机中的一个查找表,包括TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数等。
在注册阶段,OLT对接收到的ONU数据进行突发接收,获得对应该ONU的接收机参数,包括TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数等。根据接收机收敛后确定的接收机参数将该ONU划归到对应接收机参数分组。OLT接收机将确定的对应分组编号发送给OLT MAC。
具体的,图4是根据本发明可选实施例的在前导序列中插入分组编号的OLT接收机的示 意图,如图4所示,OLT接收机在前导序列中插入分组编号,OLT MAC接收到该ONU上行数据后,提取分组编号和ONU ID,并将该对应关系保存在MAC寄存器中,用于工作阶段快速恢复。
具体的,图5是根据本发明可选实施例的给OLT MAC发送指示信号的OLT接收机的示意图,如图5所示,OLT接收机给OLT MAC发送指示信号,该指示信号表示到达OLT MAC的ONU对应的分组编号。该指示信号可以通过I2C、MDIO接口,或者自定义接口或指示管脚。
在本实施例中,图8是根据本发明可选实施例的独立的BCDR和均衡器集成芯片的示意图,图9是根据本发明可选实施例的跟MAC芯片集成在一起的BCDR和均衡器集成芯片的示意图,如图8和图9所示,OLT接收机中TIA在OLT光模块的光接收机中,BCDR和均衡器可以是集成在一起的独立芯片,也可以是跟MAC芯片集成在一起,同时完成串并转换功能。
在工作阶段,OLT将对应ONU的接收机参数预先配置到OLT接收机,ONU数据到达后,可以快速收敛,实现快速突发接收。
具体的,图6是根据本发明可选实施例的给OLT接收机对应分组指示信号的OLT MAC的示意图,如图6所示,OLT MAC根据DBA可以知道到达接收机的ONU所在分组。OLT MAC在上一个或一组ONU数据结束后,下一个或一组ONU数据到达前,给OLT接收机对应分组指示信号,OLT接收机根据指示信号将对应下一个或一组接收机参数配置生效,包括TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数等。该指示信号可以通过I2C、MDIO接口,或者自定义接口或指示管脚。
具体的,图7是根据本发明可选实施例的给OLT接收机表示更新接收机参数的指示信号的OLT MAC的示意图,如图7所示,OLT通过DBA调度,让到达OLT接收机的ONU组按照固定的顺序,如先是第一组ONU,第二组ONU,……,第N组ONU,第一组ONU,第二组ONU,……。OLT MAC给OLT接收机表示更新接收机参数的指示信号,该指示信号可以是脉冲信号,或电平跳变信号,等指示信号。OLT接收机接到该指示信号后,将下一组接收机参数配置生效。
实施例三,图10是根据本发明可选实施例的保存在OLT MAC中的N组接收机参数具体值的示意图,如图10所示,N组接收机参数具体值可以是保存在OLT MAC,或系统板上MAC可以读写的寄存器中的一个查找表。
在注册阶段,OLT对接收到的ONU数据进行突发接收,获得对应该ONU的接收机参数。OLT接收机将收敛后确定的接收机参数发送给OLT MAC。OLT MAC根据收到的接收机参数将该ONU划归到对应接收机参数分组。
具体的,图11是根据本发明可选实施例的在前导序列中插入接收机参数信息的OLT接收机的示意图,如图11所示,OLT接收机在前导序列中插入接收机参数信息,OLT MAC接收到该ONU上行数据后,提取接收机参数信息和ONU ID,确定ONU分组,并将该对应关系保存在MAC寄存器中,用于工作阶段快速恢复。
具体的,图12是根据本发明可选实施例的给OLT MAC发送接收机参数信息的OLT接收机的示意图,如图12所示,OLT接收机给OLT MAC发送指示信号,该指示信号表示到达OLT MAC的ONU对应的接收机参数信息。该指示信号可以通过I2C接口,或者专用的指示信号管脚。
在工作阶段,OLT将对应ONU的接收机参数预先配置到OLT接收机,ONU数据到达后,可以快速收敛,实现快速突发接收。
具体的,图13是根据本发明可选实施例的给OLT接收机对应接收机参数信息的OLT MAC的示意图,如图13所示,OLT MAC根据DBA可以知道到达接收机的ONU所在分组。OLT MAC 在上一个或一组ONU数据结束后,下一个或一组ONU数据到达前,给OLT接收机对应接收机参数信息,OLT接收机根据接收机参数信息将对应下一个或一组接收机参数配置生效。该接收机参数信息可以通过I2C接口,或者专用的接收机参数信息管脚。
具体的,图14是根据本发明可选实施例的给OLT接收机发送接收机参数信息的OLT MAC的示意图,如图14所示,OLT通过DBA调度,让到达OLT接收机的ONU组按照固定的顺序,如先是第一组ONU,第二组ONU,……,第N组ONU,第一组ONU,第二组ONU,……。OLT MAC给OLT接收机发送接收机参数信息。OLT接收机接到该接收机参数信息后,将接收机参数配置生效。
在工作阶段,OLT将对应ONU的接收机参数预先配置到OLT接收机,ONU数据到达后,可以快速收敛,实现快速突发接收。
具体的,OLT MAC通过与OLT接收机的通信接口将OLT接收机参数查找表信息发送给OLT接收机,OLT接收机将该信息保存在接收机寄存器中。
具体的,图6是根据本发明可选实施例的给OLT接收机对应分组指示信号的OLT MAC的示意图,如图6所示,OLT MAC根据DBA可以知道到达接收机的ONU所在分组。OLT MAC在上一个或一组ONU数据结束后,下一个或一组ONU数据到达前,给OLT接收机对应分组指示信号,OLT接收机根据指示信号将对应下一个或一组接收机参数配置生效。该指示信号可以通过I2C接口,或者专用的指示信号管脚。
具体的,图7是根据本发明可选实施例的给OLT接收机表示更新接收机参数的指示信号的OLT MAC的示意图,如图7所示,OLT通过DBA调度,让到达OLT接收机的ONU组按照固定的顺序,如先是第一组ONU,第二组ONU,……,第N组ONU,第一组ONU,第二组ONU,……。OLT MAC给OLT接收机的的指示信号表示接收机参数更换,该指示信号可以是脉冲信号,或电平跳变信号,等指示信号。OLT接收机接到该指示信号后,将下一组接收机参数配置生效。
实施例四,图10是根据本发明可选实施例的保存在OLT MAC中的N组接收机参数具体值的示意图,如图10所示,N组接收机参数具体值可以是保存在OLT MAC,或系统板上MAC可以读写的寄存器中的一个查找表,包括TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数等。TIA位于OLT光模块光接收机内,BCDR和均衡器芯片位于OLT系统板上。
在注册阶段,图15是根据本发明可选实施例的通过芯片的I2C结构发送给OLT MAC的均衡器抽头系数的示意图,如图15所示,OLT对接收到的ONU数据进行突发接收,获得对应该ONU的接收机参数,包括TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数等。OLT光接收机将收敛后确定的TIA参数通过光模块I2C发送给OLT MAC。BCDR和均衡器芯片将收敛后确定的BCDR相位参数,均衡器抽头系数通过芯片的I2C结构发送给OLT MAC,OLT MAC根据收到的接收机参数将该ONU划归到对应接收机参数分组。
在工作阶段,OLT将对应ONU的接收机参数预先配置到OLT接收机。ONU数据到达后,可以快速收敛,实现快速突发接收。
具体的,图16是根据本发明可选实施例的OLT MAC给OLT光接收机和BCDR和均衡器芯片下发对应参数的示意图,如图16所示,OLT MAC根据DBA可以知道到达接收机的ONU所在分组。OLT MAC在上一个或一组ONU数据结束后,下一个或一组ONU数据到达前,通过I2C接口给OLT光接收机下发对应的TIA AGC增益,TIA VGA增益,给BCDR和均衡器芯片下发对应的BCDR相位参数,均衡器抽头系数。OLT光接收机TIA芯片和BCDR和均衡器芯片将OLT MAC 发送的参数信息配置生效。
综上所述,本实施例提出了一种快速自适应突发接收方法解决PON系统上行前导开销大的问题。具体方法为ONU分成N组,每组ONU对应一组OLT接收机参数,具体包括跨阻增益、时钟频率、相位、均衡系数等。OLT接收ONU数据前,提前将对应的参数配置到OLT接收机。ONU数据到达OLT接收机后,OLT只需要微调或者不需要调节,就可以接收上行数据,从而加快上行突发接收恢复时间,减小前导开销。
本发明的实施例还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序,其中,该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个示例性实施例中,上述计算机可读存储介质可以包括但不限于:U盘、只读存储器(Read-Only Memory,简称为ROM)、随机存取存储器(Random Access Memory,简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置,包括存储器和处理器,该存储器中存储有计算机程序,该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个示例性实施例中,上述电子装置还可以包括传输设备以及输入输出设备,其中,该传输设备和上述处理器连接,该输入输出设备和上述处理器连接。
本实施例中的具体示例可以参考上述实施例及示例性实施方式中所描述的示例,本实施例在此不再赘述。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (19)

  1. 一种OLT接收机参数配置方法,包括:
    光线路终端OLT对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数;
    所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组;
    所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,并突发接收所述ONU的上行数据。
  2. 根据权利要求1所述的方法,其中,所述OLT根据所述接收机参数将所述ONU划分到对应的接收机参数分组,包括:
    根据OLT接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组。
  3. 根据权利要求2所述的方法,其中,在根据接收机收敛后确定的所述接收机参数将所述ONU划分到对应的所述接收机参数分组之后,还包括:
    所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC。
  4. 根据权利要求3所述的方法,其中,所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC,包括以下之一:
    所述OLT接收机在上行数据的前导序列中插入所述接收机参数的分组编号,并发送至所述OLT MAC;
    所述OLT接收机向所述OLT MAC发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC的所述ONU对应的所述分组编号。
  5. 根据权利要求4所述的方法,其中,在所述OLT接收机将所述接收机参数的分组编号发送给OLT MAC之后,还包括:
    所述OLT MAC提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
  6. 根据权利要求3所述的方法,其中,所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,包括:
    所述OLT MAC根据DBA获取上行数据到达所述OLT接收机的所述ONU所在的所述分组编号;
    所述OLT MAC在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机发送对应的接收机参数信息;
    所述OLT接收机根据接收机参数信息将对应下一个或一组接收机参数配置生效。
  7. 根据权利要求6所述的方法,其中,所述OLT将对应所述ONU的所述接收机参数配置到OLT接收机,包括:
    所述OLT通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机;
    所述OLT MAC向所述OLT接收机发送第二指示信号用于指示所述OLT接收机按照预定顺序更换各ONU组的接收机参数;
    所述OLT接收机根据所述第二指示信号将下一组ONU的接收机参数配置生效。
  8. 根据权利要求1所述的方法,其中,所述ONU的接收机参数,至少包括以下之一:
    TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
  9. 一种光线路终端OLT,包括:
    OLT接收机,设置为对光网络单元ONU发送的上行数据进行突发接收,并获得对应于所述ONU的接收机参数,并根据所述接收机参数将所述ONU划分到对应的接收机参数分组;
    OLT MAC,设置为将对应所述ONU的所述接收机参数配置到所述OLT接收机,并突发接收所述ONU的上行数据。
  10. 根据权利要求9所述的光线路终端,其中,
    所述OLT接收机,还设置为将所述接收机参数的分组编号发送给OLT MAC。
  11. 根据权利要求10所述的光线路终端,其中,所述OLT接收机通过以下方式之一发送所述分组编号:
    通过在上行数据的前导序列中插入所述接收机参数的分组编号后发送至所述OLT MAC;
    通过向所述OLT MAC发送第一指示信号,其中,所述第一指示信号表示上行数据到达所述OLT MAC的所述ONU对应的所述分组编号。
  12. 根据权利要求10所述的光线路终端,其中,所述第一指示信号通过以下之一接口发送:I2C接口,MDIO接口,自定义接口,指示管脚。
  13. 根据权利要求11所述的光线路终端,其中,
    所述OLT MAC,还设置为提取所述分组编号和ONU ID,并将所述分组编号和所述ONU ID的对应关系保存在MAC寄存器中。
  14. 根据权利要求9所述的光线路终端,其中,
    所述OLT MAC,还设置为根据DBA获取上行数据到达所述OLT接收机的所述ONU所在的所述分组编号,并在上一个或一组ONU的所述上行数据传输结束后,下一个或一组ONU的上行数据传输到达前,向所述OLT接收机发送对应的接收机参数信息;
    所述OLT接收机,还设置为根据接收机参数信息将对应下一个或一组接收机参数配置生效。
  15. 根据权利要求9所述的光线路终端,其中,
    所述OLT MAC,还设置为通过调度所述DBA使得各ONU组的上行数据按照预定顺序到达所述OLT接收机,并向所述OLT接收机发送第二指示信号用于指示所述OLT接收机按照预定 顺序更换各ONU组的接收机参数;
    所述OLT接收机,还设置为根据所述第二指示信号将下一组ONU的接收机参数配置生效。
  16. 根据权利要求9所述的光线路终端,其中,所述ONU的接收机参数至少包括以下之一:
    TIA AGC增益,TIA VGA增益,BCDR相位参数,均衡器抽头系数。
  17. 根据权利要求9所述的光线路终端,其中,所述接收机参数分组保存在所述OLT接收机的查找表中,或保存在所述OLT MAC的查找表中,或保存在OLT的系统板上所述OLT MAC可以读写的寄存器的查找表中。
  18. 一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,其中,所述计算机程序被处理器执行时实现所述权利要求1至8任一项中所述的方法的步骤。
  19. 一种电子装置,包括存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现所述权利要求1至8任一项中所述的方法的步骤。
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