WO2012106939A1 - 一种高速光传输系统、设备及数据处理方法 - Google Patents

一种高速光传输系统、设备及数据处理方法 Download PDF

Info

Publication number
WO2012106939A1
WO2012106939A1 PCT/CN2011/077691 CN2011077691W WO2012106939A1 WO 2012106939 A1 WO2012106939 A1 WO 2012106939A1 CN 2011077691 W CN2011077691 W CN 2011077691W WO 2012106939 A1 WO2012106939 A1 WO 2012106939A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
external command
control unit
subcarriers
data
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/CN2011/077691
Other languages
English (en)
French (fr)
Inventor
李喜祥
熊前进
解长松
李良川
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
Original Assignee
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
Priority to CN201180001192.2A priority Critical patent/CN102318240B/zh
Priority to PCT/CN2011/077691 priority patent/WO2012106939A1/zh
Publication of WO2012106939A1 publication Critical patent/WO2012106939A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission

Definitions

  • Embodiments of the present invention relate to the field of high-speed optical transmission technologies, and in particular, to a high-speed optical transmission system, device, and data processing method.
  • high-speed optical transmission communication networks have multiple signal rates and multiple application scenarios, and the same signal rate (eg, 40G) Bit)
  • signal rate e.g. 40G
  • modulation formats available, and the modulation formats used for different signal rates and different application scenarios are also different.
  • PM-QPSK Polygonalization
  • the embodiment of the invention provides a high-speed optical transmission system, a device and a data processing method, thereby solving the problem of high implementation cost and poor flexibility of the system hardware.
  • a data processing method for a transmitter in a high-speed optical transmission system when the parameters of the transmitter need to be adjusted, the method includes:
  • the control unit of the transmitter receives the first external command
  • the control unit configures a modulation format of the data processing unit of the transmitter according to the received first external command
  • the data processing unit modulates a signal to be transmitted according to a modulation format configured by the control unit.
  • a data processing method for a receiver in a high-speed optical transmission system when the parameters of the receiver need to be adjusted, the method includes:
  • the control unit of the receiver receives a second external command
  • the control unit configures a demodulation format of the data recovery unit of the receiver according to the received second external command
  • the data recovery unit performs demodulation processing on the input signal according to a demodulation format configured by the control unit.
  • a transmitter in a high speed optical transmission system comprising:
  • Control unit and data processing unit
  • control unit is configured to receive a first external command, and configure a modulation format of the data processing unit according to the first external command;
  • the data processing unit is configured to modulate a signal to be transmitted according to a modulation format configured by the control unit.
  • a receiver in a high speed optical transmission system comprising:
  • Control unit data recovery unit
  • control unit is configured to receive a second external command, and configure a demodulation format of the data recovery unit according to the second external command;
  • the data recovery unit is configured to demodulate the input signal according to a demodulation format configured by the control unit.
  • a high speed optical transmission system comprising:
  • the transmitter is configured to receive a first external command by the control unit, and configure a modulation format of the data processing unit according to the first external command, and perform modulation processing on the signal to be transmitted according to the configured modulation format by the data processing unit;
  • the receiver is configured to receive a second external command by the control unit, and configure a demodulation format of the data recovery unit according to the second external command, and perform, by using the data recovery unit, the input signal according to the configured demodulation format. Demodulation processing.
  • the transmitter/receiver can adjust the modulation format according to the received external command. It can be flexibly applied to different transmission distances, different signal rates, and mixed transmission of multiple signal rates without hardware changes or upgrades, making the configuration and adjustment of the modulation format of the network more flexible and implementing the device.
  • the normalization reduces the implementation cost of the network architecture.
  • FIG. 1 is a flowchart of a method for processing data of a transmitter according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a receiver data processing method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a transmitter according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a receiver according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a system according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another system according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a first transmitter according to Embodiment 1 of the present application.
  • FIG. 8 is a schematic structural diagram of a second transmitter according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic structural diagram of a third transmitter according to Embodiment 1 of the present application.
  • FIG. 10 is a schematic structural diagram of a receiver according to Embodiment 2 of the present application.
  • FIG. 11 is a schematic structural diagram of a receiver according to Embodiment 3 of the present application.
  • FIG. 12 is a schematic structural diagram of a receiver according to Embodiment 4 of the present invention.
  • the embodiment of the present invention provides a data processing method for a transmitter in a high-speed optical transmission system, and the implementation manner thereof is as shown in FIG. 1 , and specifically includes the following operations:
  • the control unit of the transmitter receives the first external command.
  • the control unit configures, according to the received first external command, a modulation format of a data processing unit of the transmitter.
  • the data processing unit modulates a signal to be transmitted according to a modulation format configured by the control unit.
  • the first external command may be delivered by a communication system having a management control function, such as a network management system or a control system, and the external command may be delivered through an existing control protocol (such as a universal multi-protocol label switching protocol). It can also be set by the user and delivered via the command line using a computer device.
  • a management control function such as a network management system or a control system
  • an existing control protocol such as a universal multi-protocol label switching protocol
  • the method provided by the embodiment of the invention realizes flexible adjustment of the modulation format of the transmitter, thereby being able to adapt to different application scenarios and improving the application flexibility of the transmitter.
  • control unit may further configure a spectrum width of the data processing unit of the transmitter according to the received first external command.
  • control unit may further configure parameters of the data channel of the data processing unit, the number of subcarriers, the source output power of the transmitter, the wavelength working range, and the like according to the received first external command.
  • the first external command may be a configuration parameter, where the configuration parameter includes: a modulation format.
  • the configuration parameter may further include at least one of the following: a spectrum width, a number of data channels, a number of subcarriers, a source output power, a wavelength working range, and the like.
  • the foregoing control unit may specifically configure a modulation format of a data processing unit of the transmitter according to a modulation format carried in the first external command.
  • the control unit further configures a spectrum width of the data processing unit of the transmitter according to a spectrum width carried in the first external command; if the first external command carries The configuration parameter further includes the number of data channels, and the control unit further configures the number of data channels of the data processing unit of the transmitter according to the number of data channels carried in the first external command; if the configuration parameter carried in the first external command further includes The number of carriers, the control unit further configures the number of subcarriers of the data processing unit of the transmitter according to the number of subcarriers carried in the first external command; if the configuration parameter carried in the first external command further includes the output of the light source The control unit further configures the light source output power of the data processing unit of the transmitter according to the output power of the light source carried in the first external command; if the configuration parameter carried in the first external command further includes a wavelength working range, the control unit further According to the wavelength working in the first external command Work wavelength range data processing unit configured of a transmitter.
  • the first external command may also be at least one of the following reference parameters: transmission distance, fiber type, signal rate, and channel quality; correspondingly, the foregoing control unit receives the received
  • the implementation manner of the first external command to configure the modulation format of the data processing unit of the transmitter may include: the control unit matching the reference parameter carried in the received first external command with the pre-saved parameter correspondence, selecting and a modulation format corresponding to the reference parameter carried in the first external command, and configuring a modulation format of the data processing unit of the transmitter according to the selected modulation format.
  • control unit may further match the reference parameter carried in the received first external command with the pre-stored parameter correspondence, and select a spectrum width and data corresponding to the reference parameter carried in the first external command.
  • the configuration parameters of the transmitter such as the number of channels, the number of subcarriers, the source output power of the transmitter, and/or the wavelength operating range, are configured according to the selected configuration parameters of the transmitter.
  • the parameter correspondence describes the correspondence between the reference parameters and the configuration parameters.
  • the fiber transmission distance between the transmitter and the receiver is different.
  • the spectrum width occupied by the transmitter in the fiber channel, the modulation mode used, the wavelength working range, and the source output power of the transmitter are also different.
  • Fiber Type PMD (Polarization Mode) for different types of fiber Dispersion, Polarization Mode Dispersion Coefficient and CD (Chromatic Dispersion, chromatic dispersion has different coefficients, and the requirements for the output power of the light source and the operating range of the wavelength are also different.
  • Signal Rate In the case of Multiple Subcarrier Multiplexing (OFDM), the number of subcarriers, the number of data channels, and the wavelength operating range required for different signal rates are also different.
  • OFDM Multiple Subcarrier Multiplexing
  • Channel quality When the channel quality changes, parameters such as modulation format, spectrum width, and number of subcarriers need to be adjusted to ensure signal transmission quality. When the channel quality is degraded, the spectrum width can be increased, the number of subcarriers can be increased, or a higher order modulation format can be selected.
  • the channel quality can be, but is not limited to, the following parameters: Optical Power (optical power, refers to the actual optical power of the detected system), Qfactor (Q factor), BER (Bit Error) Ratio, bit error rate, OSNR (Optical Signal Noise Ratio), etc.
  • the correspondence between the reference parameters and the configuration parameters can be configured according to the actual requirements of the communication system.
  • the first external command may further carry the configuration parameter and the reference parameter, and the transmitter directly configures the configuration parameter of the corresponding transmitter according to the configuration parameter in the first external command, according to
  • the reference parameter in the first external command is configured by selecting the configuration parameter of the transmitter that matches the reference parameter.
  • the embodiment of the present invention further provides a data processing method for a receiver in a high-speed optical transmission system, and the implementation manner thereof is as shown in FIG. 2, and specifically includes the following operations:
  • the control unit of the receiver receives a second external command.
  • the control unit of the receiver configures a demodulation format of the data recovery unit of the receiver according to the received second external command.
  • the data recovery unit demodulates the input signal according to a demodulation format configured by the control unit of the receiver.
  • the second external command may be delivered by a communication system having a management control function, such as a network management system or a control system, and the external command may be delivered through an existing control protocol (such as a general multi-protocol label switching protocol). It can also be set by the user and sent by the computer device through the command line.
  • a management control function such as a network management system or a control system
  • an existing control protocol such as a general multi-protocol label switching protocol
  • the method provided by the embodiment of the invention realizes flexible adjustment of the demodulation format of the receiver, so as to be able to adapt to different application scenarios and improve the application flexibility of the receiver.
  • control unit of the receiver may further configure a spectrum width of the data recovery unit of the receiver according to the received second external command.
  • control unit of the receiver may further configure parameters of the data channel, the number of subcarriers, the source output power of the receiver, the wavelength working range, and the like of the data recovery unit according to the received second external command.
  • the second external command may be a configuration parameter, where the configuration parameter includes: a modulation format.
  • the configuration parameter may further include at least one of the following: a spectrum width, a number of data channels, a number of subcarriers, a source output power, a wavelength working range, and the like.
  • the control unit of the receiver may specifically configure a demodulation format of the data recovery unit of the receiver according to a modulation format carried in the second external command. Since the demodulation process is the inverse of the modulation process, after knowing the modulation format of the transmitter, the receiver can determine the corresponding demodulation format.
  • the control unit of the receiver further configures a spectrum width of the data recovery unit of the receiver according to a spectrum width carried in the second external command; if the second external command carries The configuration parameter further includes the number of data channels, and the control unit of the receiver further configures the number of data channels of the data recovery unit of the receiver according to the number of data channels carried in the second external command; if the configuration carried in the second external command The parameter further includes the number of subcarriers, and the control unit of the receiver further configures the number of subcarriers of the data recovery unit of the receiver according to the number of subcarriers carried in the second external command; if the second external command carries The configuration parameter further includes a light source output power, and the control unit of the receiver further configures a light source output power of the data recovery unit of the receiver according to the output power of the light source carried in the second external command; if the configuration parameter carried in the second external command is Also includes a wavelength operating range, and the control unit of
  • the configuration parameter carried in the second external command may further include a demodulation format.
  • the control unit of the receiver may specifically configure the demodulation format of the data recovery unit of the receiver according to the demodulation format carried in the second external command.
  • the second external command may further be at least one of the following reference parameters: a transmission distance, an optical fiber type, a signal rate, and a channel quality; and correspondingly, the control unit of the receiver is configured according to the foregoing
  • the received demodulation format of the second external command configuration data recovery unit includes: the control unit of the receiver matches the received second external command with a pre-saved parameter correspondence, and the selection and the second external command are carried.
  • the demodulation format corresponding to the reference parameter configures the demodulation format of the receiver according to the selected demodulation format.
  • the received second external command is matched with the pre-stored parameter correspondence, and the spectrum width, the number of data channels, the number of subcarriers, and the number of subcarriers corresponding to the reference parameters carried in the second external command are selected.
  • the configuration parameters of the receiver such as the source output power of the receiver and/or the operating range of the wavelength, and the corresponding parameters of the receiver are configured according to the configuration parameters of the selected receiver.
  • the parameter correspondence describes the correspondence between the reference parameters and the configuration parameters.
  • the second external command may further carry the configuration parameter and the reference parameter, and the receiver directly configures the configuration parameter of the corresponding receiver according to the configuration parameter in the second external command, according to The reference parameter in the second external command is configured by selecting a configuration parameter of the receiver that matches the reference parameter.
  • the embodiment of the present invention further provides a transmitter in a high-speed optical transmission system, and the structure thereof is as shown in FIG. 3.
  • the specific implementation structure includes: a control unit 3001 and a data processing unit 3002. among them:
  • control unit 3001 is configured to receive a first external command, and configure a modulation format of the data processing unit 3002 according to the first external command;
  • the first external command may be delivered by a communication system having a management control function, such as a network management system or a control system, and the external command may be delivered through an existing control protocol (for example, a general multi-protocol label switching protocol), and the external command is also sent. It can be set by the user and sent through the command line using a computer device.
  • a management control function such as a network management system or a control system
  • an existing control protocol for example, a general multi-protocol label switching protocol
  • the data processing unit 3002 is configured to modulate the signal to be transmitted according to the modulation format configured by the control unit 3002.
  • the transmitter provided by the embodiment of the present invention can adjust the modulation format through the software configuration of the control unit, thereby adapting to different application scenarios.
  • the transmitters of different embodiments of the present invention require transmitters of different hardware structures.
  • the transmitter provided by the embodiments of the present invention reduces hardware implementation costs.
  • the transmitter provided by the embodiment of the present invention can realize the modulation format adjustable by software control, the configuration mode is flexible, and the online upgrade can be implemented.
  • the control unit 3001 may be configured to: obtain a modulation format in the first external command, and configure a modulation format of the data processing unit 3002 according to the acquired modulation format.
  • the configuration parameter carried in the first external command may further include at least one of the following: a spectrum width, a number of data channels, a number of subcarriers, a source output power, a wavelength working range, and the like.
  • the control unit 3001 is further configured to: if the configuration parameter carried by the first external command includes a spectrum width, acquire a spectrum width in the first external command, and configure a spectrum width of the data processing unit 3002 according to the acquired spectrum width.
  • the configuration parameter carried in the first external command includes the number of data channels, obtain the number of data channels in the first external command, and configure the number of data channels of the data processing unit 3002 according to the obtained number of data channels; if the first external command If the number of subcarriers is included in the configuration parameter, the number of subcarriers in the first external command is obtained, and the number of subcarriers in the data processing unit 3002 is configured according to the number of acquired subcarriers; if the first external command is used, The configuration parameter carried in the light source output power, the light source output power in the first external command is obtained, and the light source output power of the data processing unit 3002 is configured according to the obtained light source output power; if the configuration parameter carried in the first external command includes the wavelength The working range, the wavelength working range in the first external command is obtained, Configuring wavelength of the operating range of the data processing unit 3002 according to the wavelength operating range acquired.
  • the control unit 3001 specifically includes:
  • the external command receiving subunit 30011 is configured to receive a first external command, where the first external command carries at least one of the following reference parameters: a transmission distance, a fiber type, a signal rate, and a channel quality;
  • the configuration parameter determining sub-unit 30012 is configured to match the reference parameter carried in the first external command with the pre-saved parameter correspondence, so as to select a modulation format corresponding to the reference parameter carried in the first external command;
  • the configuration parameter determining sub-unit 30012 is further configured to: match the reference parameter carried in the received first external command with the pre-saved parameter correspondence, and select a spectrum width corresponding to the reference parameter carried in the first external command.
  • the corresponding relationship of the parameter may be manually configured by the operator, or may be delivered by the network management system or the control system.
  • the configuration execution sub-unit 30013 is configured to configure the modulation format of the data processing unit 3002 according to the selected modulation format.
  • the configuration execution sub-unit 30013 may be further configured to determine, according to the configuration parameter, the selected transmission by the sub-unit 30012.
  • the configuration parameters of the machine configure corresponding parameters of the data processing unit 3002.
  • the embodiment of the present invention further provides a receiver in a high-speed optical transmission system, and the structure thereof is as shown in FIG. 4 .
  • the specific implementation structure includes: a control unit 4001 and a data recovery unit 3004. among them:
  • control unit 4001 is configured to receive a second external command, and configure a demodulation format of the data recovery unit 4002 according to the second external command;
  • the second external command may be delivered by a communication system having a management control function, such as a network management system or a control system, and the external command may be delivered through an existing control protocol (for example, a general multi-protocol label switching protocol). It can be set by the user and sent through the command line using a computer device.
  • a management control function such as a network management system or a control system
  • an existing control protocol for example, a general multi-protocol label switching protocol
  • the data recovery unit 4002 is configured to demodulate the input signal according to the demodulation format configured by the control unit 4001.
  • the receiver provided by the embodiment of the present invention can adjust the modulation format through the control unit to adapt to different application scenarios.
  • the receiver provided by the embodiment of the present invention can adapt to different application scenarios, and different application scenarios than the prior art require receivers with different hardware structures, which reduces the hardware implementation cost.
  • the receiver provided by the embodiment of the present invention can realize the switching of the demodulation format through software control, and the configuration manner is flexible, and the online upgrade can be implemented.
  • the working mode of the control unit 4001 may be: acquiring the modulation format in the second external command, and configuring the solution of the data recovery unit 4002 according to the acquired modulation format.
  • the configuration parameter carried in the second external command may further include at least one of the following: a spectrum width, a number of data channels, a number of subcarriers, a source output power, a wavelength working range, and the like.
  • the control unit 4001 is further configured to: if the configuration parameter carried by the second external command includes a spectrum width, acquire a spectrum width in the second external command, and configure a spectrum width of the data recovery unit 4002 according to the acquired spectrum width.
  • the configuration parameter carried in the second external command includes the number of data channels, obtain the number of data channels in the second external command, and configure the number of data channels of the data recovery unit 4002 according to the obtained number of data channels; if the second external command If the number of subcarriers is included in the configuration parameter carried in the second external command, the number of subcarriers in the second external command is obtained, and the number of subcarriers in the data recovery unit 4002 is configured according to the obtained number of subcarriers;
  • the carried configuration parameter includes the light source output power, the light source output power in the second external command is obtained, and the light source output power of the data recovery unit 4002 is configured according to the obtained light source output power; if the configuration parameter carried in the second external command includes the wavelength The working range, the wavelength working range in the second external command is obtained, Configuration data recovery unit operating at a wavelength range of 4002 according to the wavelength operating range acquired.
  • the configuration parameter carried in the second external command may further include a demodulation format instead of a modulation format, and the working mode of the control unit 4001 may specifically obtain a demodulation format in the second external command, and configure according to the obtained demodulation format.
  • the control unit 4001 specifically includes:
  • the external command receiving subunit 40011 is configured to receive the foregoing second external command, where the second external command carries at least one of the following reference parameters: a transmission distance, a fiber type, a signal rate, and a channel quality;
  • a configuration parameter determining sub-unit 40012 configured to match a reference parameter carried in the second external command with a pre-saved parameter correspondence, thereby selecting a demodulation format corresponding to the reference parameter carried in the second external command;
  • the configuration parameter determining sub-unit 40012 is further configured to: match the reference parameter carried in the received second external command with the pre-saved parameter correspondence, and select the reference parameter carried in the second external command.
  • Configuration parameters of the receiver such as the corresponding spectrum width, number of data channels, number of subcarriers, source output power of the receiver, and/or wavelength operating range;
  • the corresponding relationship of the parameter may be manually configured by an operator, or may be delivered by a network management system or a control system;
  • the configuration execution subunit 40013 is configured to configure a demodulation format of the data recovery unit according to the selected demodulation format.
  • the configuration execution subunit 40013 is further configured to determine, according to the configuration parameter, the receiver selected by the subunit 40012.
  • the configuration parameters configure the corresponding parameters of the data recovery unit 4002.
  • the embodiment of the present invention further provides a high-speed optical transmission system, the structure of which is shown in FIG. 5.
  • the specific implementation structure includes a transmitter 300, a receiver 400, and a fiber link 200 connecting the transmitter 300 and the receiver 400.
  • the transmitter 300 is configured to receive a first external command by the control unit 3001, and configure a modulation format of the data processing unit 3002 of the transmitter 300 according to the first external command, and the data processing unit 3002 is to be transmitted according to the configured modulation format.
  • the signal is modulated;
  • the receiver 400 is configured to receive a second external command through the control unit 4001, and configure a demodulation format of the data recovery unit 4002 of the receiver 400 according to the second external command, and input the data according to the configured demodulation format by the data recovery unit 4002.
  • the signal is demodulated.
  • the transmitter/receiver can adjust the modulation format according to the received external command, and then process the signal according to the configured parameters. That is to say, the transmitter/receiver in the system can be flexibly applied to long-distance, short-distance, metro, and different signal rate applications by adjusting parameters such as modulation format without hardware changes or upgrades.
  • the transmitter/receiver in the system can be flexibly applied to long-distance, short-distance, metro, and different signal rate applications by adjusting parameters such as modulation format without hardware changes or upgrades.
  • modular production of communication equipment reduces the cost of implementing the network architecture.
  • the system provided by the embodiment of the present invention may further include at least one Flex ROADM (Flex Reconfigurable). Optical Add-Drop Multiplexer, a variable bandwidth reconfigurable optical add/drop multiplexer).
  • Flex The ROADM 100, the transmitter 300 and the receiver 400 are connected by a fiber link 200, the Flex The ROADM is configured to receive a third external command, and configure a spectrum width, a signal rate, and/or a number of subcarriers according to the third external command.
  • the application scenarios can be divided into long-distance, short-distance, and metropolitan areas, and can also be divided according to signal rate, fiber type, etc.
  • Application scenarios as well as different system performance parameters (system performance parameters can be, but are not limited to, including: channel quality of the fiber link, source output power of the transmitter, and source output power of the receiver), or even different user requirements,
  • system performance parameters can be, but are not limited to, including: channel quality of the fiber link, source output power of the transmitter, and source output power of the receiver), or even different user requirements,
  • modulation formats are available.
  • transmitters and receivers may also need to configure the spectral width to match the transmission distance.
  • the transmitter, receiver may also need to configure the number of data channels and the number of subcarriers that match the signal rate.
  • the transmitter and receiver may also need to configure other parameters according to different application scenarios.
  • the sender of the (1) external command may select a modulation format according to the application scenario and the system performance parameter (optional) Also select: configuration parameters such as: spectrum width, number of data channels, number of subcarriers, source output power, wavelength operating range, etc., and carry the selected configuration parameters in an external command (where the modulation format is determined, it is determined The format is adjusted, and the second external command may carry the selected modulation format or the corresponding demodulation format.
  • the modulation format is manually determined by the user (optionally determined: spectrum width, data channel) Configuration parameters such as number, number of subcarriers, source output power, wavelength operating range, etc.
  • the computer device carries the configuration parameters determined by the user in an external command by executing an instruction input by the user; or, (3) the sender of the external command By the first external command sent to the transmitter and the second external command sent to the receiver, respectively
  • the transmitter and the receiver transmit at least one of the following reference parameters: transmission distance, fiber type, signal rate, channel quality, so that the transmitter selects a modulation format according to the reference parameters (optional also selects: spectrum width, number of data channels, sub- Transmitter configuration parameters such as carrier number, source output power, and/or wavelength operating range), so that the receiver selects the demodulation format based on these reference parameters (optional also select: spectrum width, number of data channels, subcarriers) Receiver configuration parameters such as number, source output power, and/or wavelength operating range); optionally, the external command sender passes the third external command
  • the parameter correspondence can be configured in advance on the sender of the external command.
  • the configuration parameters are selected according to the reference parameters such as the application scenario and the system performance parameter (the configuration parameters include: modulation format, spectrum width, number of data channels, number of subcarriers, etc.), which can be implemented by using an existing implementation manner. Including: fiber type, signal rate, and transmission distance, the configuration of the parameter correspondence is illustrated as an example:
  • the system chooses to use 1 subcarrier to carry the signal.
  • the long-distance (transmission distance is more than 200 kilometers, generally between 200 kilometers and 2000 kilometers) 100G system can adopt the spectrum width of 50GHz, the modulation format is PM-QPSK, and the transmitter/receiver detection mode is coherent Detection; short-distance / metro (transmission distance less than 200 km) 100G system can use a spectrum width of 25GHz, the modulation format can be PM-16-QAM (transmitter/receiver detection mode is coherent detection), can be used
  • the spectrum width may also be 50 GHz, and the modulation format may be PM-OFDM (transmitter/receiver detection mode is coherent detection) or OFDM-QPSK (transmitter/receiver detection mode is direct detection).
  • the long-distance 400G system with a transmission distance greater than 500 kilometers can adopt a spectrum width of 125 GHz, and the modulation format is PM-OFDM-QPSK (the transmitter/receiver detection mode is coherent detection).
  • 5 subcarriers can be used to carry signals; short-range/metro-domain 400G systems with transmission distances between 100 km and 500 km can carry 2 subcarriers to carry signals, the spectrum width is 100 GHz, and the modulation format is PM-16QAM, transmitter
  • the detection mode of the receiver/receiver is coherent detection; the short-range/metro-area 400G system with a transmission distance of less than 80 km can carry 2 ⁇ 3 subcarriers to carry signals, the spectrum width is 75 GHz, the modulation format is PM-32QAM, transmitter/reception
  • the detection mode of the machine is coherent detection.
  • the long-distance 1T system with a transmission distance greater than 500 kilometers can carry 12 subcarriers to carry signals, the spectrum width is 300GHz, the modulation format is PM-OFDM-QPSK, and the transmitter/receiver detection mode
  • a short-range/metro-domain 1T system with a transmission distance between 100 km and 500 km can carry 6 subcarriers to carry signals with a spectrum width of 150 GHz and a modulation format of PM-OFDM-16QAM, transmitter/receiver
  • the detection mode of the machine is coherent detection; the short-range/metro-domain 1T system with a transmission distance of less than 80 km can carry 4 subcarriers to carry signals, the spectrum width is 25 GHz, the modulation format is PM-OFDM-32QAM, and the transmitter/receiver
  • the detection method is coherent detection.
  • the data encoding and distributing unit 30021 digital signal processing (Digital Signal Processor, DSP) unit 30022, digital to analog conversion (Digital Analogue The conversion, DAC) unit 30023, the light source 30024, the polarization beam splitter 30025, the subcarrier generation unit 30026, the modulation unit 30027, the polarization combiner 30028, and the multiplexer (Muxplexer, MUX) 30029 collectively constitute the data processing unit 3002.
  • DSP Digital Signal Processor
  • DAC Digital Analogue The conversion
  • the digital signal processing unit 30022 and the digital-to-analog conversion unit 30023 are not required, and the control unit 3001
  • the digital processing unit 30022 and the digital to analog conversion unit 30023 can be turned off by the analog switch 300210.
  • the implementation structure of the transmitter is shown in FIG. 8.
  • the digital signal processing unit 30022 is not required when pre-processing of the signal is not required, and the control unit 3001 can turn off the digital processing unit 30022 through the analog switch 300210.
  • the implementation structure of the transmitter is shown in FIG.
  • the control unit 3001 of the transmitter receives the first external command
  • the control unit 3001 configures the number N of data channels of the data encoding and distributing unit 30021 according to the number N of data channels carried in the first external command, and the control unit 3001, according to the number n of subcarriers carried in the first external command, configure subcarrier generation unit 30026, digital signal processing unit 30022, digital to analog conversion unit 30023, and number of subcarriers n of modulation unit 30027, and control unit 3001 according to a modulation format carried in an external command, configuring a modulation format of the modulation unit 30027;
  • the control unit 3001 selects the number of data channels N, the number of subcarriers n, and the modulation that match the reference parameters carried in the first external command by searching the pre-stored parameter correspondence. Format, and configure the number N of data channels of the data encoding and distributing unit 30021 according to the selected number of data channels N, and configure the subcarrier generating unit 30026, the digital signal processing unit 30022, the digital to analog converting unit 30023 according to the selected number of subcarriers n. And the number n of subcarriers of the modulating unit 30027, the modulation format of the modulating unit 30027 is configured according to the determined modulation format.
  • the control unit 3001 cuts off the connection between the digital signal processing unit 30022 and the data encoding distribution unit 30021 by controlling the analog switch 300210, and cuts off the connection between the digital to analog conversion unit 30023 and the modulation unit 30027.
  • the data encoding distribution unit 30021 is directly connected to the modulating unit 30027 (as shown in FIG. 8). If the signal is not required to be pre-processed, the control unit 3001 can also cut off the connection between the digital signal processing unit 30022 and the data encoding and distributing unit 30021 by controlling the analog switch 300210, and cut off the digital signal processing unit 30022 and the digital-to-analog conversion unit 30023.
  • the connection between the data encoding and distribution unit 30021 is directly connected to the digital to analog conversion unit 30023.
  • the high-speed parallel m-channel electrical signal enters the data encoding and distributing unit 30021, and the data encoding and distributing unit 30021 performs m:N conversion on the input m-channel electrical signal, and outputs N-channel electrical signals; wherein N is configured by the control unit 3001.
  • the code can be SD-FEC (Soft-Decision) Forward Error Correction, Soft Decision Forward Error Correction) or HD-FEC (Hard-Decision Forward Error) Correction, hard decision forward error correction);
  • n-channel electrical signals can be divided into two groups, each group of n channels, respectively entering the I/Q arms of the two sets of modulators 30027; or four groups, each group of n channels, respectively entering the I of the two sets of modulators 30027 /Q, X/Y four arms;
  • the N-channel electrical signal outputted by the data encoding and distributing unit 30021 is executed to enter the digital signal processing unit 30022, and the digital signal processing unit 30022 performs signal pre-processing on the input electrical signal, according to the control unit 3001.
  • the number of configured subcarriers n outputs n electrical signals to the digital to analog conversion unit 30023, executing S303;
  • the digital-to-analog conversion unit 30023 performs the digital-to-analog conversion processing on the input n-channel electrical signals according to the number n of sub-carriers arranged by the control unit 3001, and outputs the same to the modulation unit 30027;
  • the specific implementation manner may be: (1) divided into two groups, each group of n channels, respectively outputting electrical signals to the I/Q arms of the two sets of modulators 30027; (2) being divided into four groups, each group of n ways, respectively The four arms of the I/Q and X/Y of the two sets of modulators 30027 output electrical signals.
  • the light source 30024 generates an optical signal.
  • the polarization beam splitter 30028 divides the light signal generated by the light source 30024 into two polarized lights, and outputs the two polarized lights to the two sets of subcarrier generating units 30026;
  • the two sets of subcarrier generating units 30026 respectively process the input polarized light, generate n way subcarriers, and output n subcarriers to the I/Q arms of the two sets of modulation units 30027, respectively, or respectively, respectively, n subcarriers Output to the I/Q, X/Y four arms of the two sets of modulation units 30027;
  • n is the number of subcarriers configured by the control unit 3001.
  • Each group of modulation units 30027 modulates the input optical signal and the electrical signal according to a modulation format configured by the control unit 3001, and generates n sub-wavelength optical signals according to the number of subcarriers configured by the control unit 3001.
  • the polarization combiner 30028 performs beam combining processing on the sub-wavelength optical signals generated by the two sets of modulation units 30027 according to the modulation format configured by the control unit 3001, and outputs n sub-wavelength optical signals;
  • the multiplexer 30029 performs wavelength combining processing on the n-channel sub-wavelength optical signals output from the polarization combiner 30028, and the combined optical signals are output signals of the transmitter.
  • ADC analog to digital conversion
  • DSP digital signal processing
  • data synthesizing unit 40027 collectively constitute a data recovery unit 4002.
  • the control unit 4001 of the receiver receives the second external command
  • the control unit 4001 configures the subcarrier generation unit 40023, the mixing, and the number of subcarriers n carried in the second external command.
  • the number of subcarriers n of the subcarrier separating unit 40021, the analog to digital converting unit 40025, the digital signal processing unit 40026, and the data synthesizing unit 40027, and the control unit 4001 is configured according to a modulation format (or a demodulation format) carried in the second external command. a demodulation format of the digital signal processing unit 40026;
  • the control unit 4001 selects the number of subcarriers n and the demodulation format that match the reference parameter carried in the second external command by searching the pre-stored parameter correspondence, and according to The number of selected subcarriers n, the configuration subcarrier generating unit 40023, the mixing and subcarrier separating unit 40021, the analog to digital converting unit 40025, the digital signal processing unit 40026, and the number of subcarriers n of the data synthesizing unit 40027, the control unit 4001
  • the demodulation format of the digital signal processing unit 40026 is configured in accordance with the selected demodulation format.
  • the light source 40022 generates an optical signal.
  • the subcarrier generating unit 40023 processes the optical signal generated by the light source 40022, generates n way subcarriers, and outputs n way subcarriers to the mixing and subcarrier separating unit 40021;
  • the mixing and subcarrier separating unit 40021 receives the input signal on the optical fiber, and performs mixing processing on the input signal according to the number n of subcarriers configured by the control unit 4001, and performs subcarrier separation on the mixed n signal. , separating the n-way sub-wavelength optical signal output to the photoelectric conversion unit 40024;
  • the photoelectric conversion unit 40024 converts the n-channel wavelet long-length signal into an electrical signal, and outputs the n-channel electrical signal to the analog-to-digital conversion unit 40025;
  • the analog-to-digital conversion unit 40025 performs analog-to-digital conversion on the input n-channel electrical signals according to the number n of sub-carriers configured by the control unit 4001, and outputs the same to the digital signal processing unit 40026;
  • the digital signal processing unit 40026 recovers the n-channel electrical signal according to the demodulation format configured by the control unit 4001, and outputs the restored n-channel electrical signal to the data synthesizing unit 40027 according to the number of subcarriers n configured by the control unit 4001. ;
  • the signal is generated in the process of transmitting on the fiber link, and the digital signal processing unit 40026 performs the recovery process on the electrical signal, including: performing line compensation and demodulation processing on the electrical signal.
  • the specific implementation manner of the line compensation may be: dispersion compensation, PMD compensation, nonlinear compensation, and the like.
  • the recovery process may specifically implement the signal by using a fast Fourier transform, an equalization algorithm, an SD-FEC decoding algorithm, or the like;
  • the data synthesizing unit 40027 combines the n electrical signals into m electrical signals according to the number n of subcarriers configured by the control unit 4001, and outputs the signals.
  • the subcarrier separation unit 40028, the mixing unit 40029, the light source 40022, the subcarrier generation unit 40023, the photoelectric conversion unit 40024, the analog to digital conversion unit 40025, the digital signal processing unit 40026, and the data synthesis unit 40027 collectively constitute a data recovery unit 4002. .
  • the control unit 4001 of the receiver receives the second external command
  • the control unit 4001 configures the subcarrier generation unit 40023 and the subcarrier separation according to the number n of subcarriers carried in the second external command.
  • control unit 4001 selects the number of subcarriers n and the demodulation format that match the reference parameter carried in the second external command by searching the pre-stored parameter correspondence, and according to The number of selected subcarriers n, the number of subcarriers n of the subcarrier generation unit 40023, the subcarrier separation unit 40028, the mixing unit 40029, the analog to digital conversion unit 40025, the digital signal processing unit 40026, and the data synthesizing unit 40027 are controlled.
  • Unit 4001 configures the demodulation format of digital signal processing unit 40026 in accordance with the selected demodulation format.
  • the signal processing principle of the receiver shown in FIG. 11 is as follows:
  • the light source 40022 generates an optical signal.
  • the subcarrier generating unit 40028 processes the optical signal generated by the light source 40022 according to the number n of subcarriers configured by the control unit 4001, generates n way subcarriers, and outputs n subcarriers to the mixing unit 40029;
  • the subcarrier separation unit 40028 separates the input signal of the optical fiber according to the number of subcarriers n arranged by the control unit 4001, separates the n-channel sub-wavelength optical signal, and outputs the n-channel sub-wavelength optical signal to the mixing unit 40029;
  • the mixing unit 40029 performs mixing processing on the input n-channel sub-wavelength optical signals according to the number of sub-carriers n and n-subcarriers configured by the control unit 4001, and outputs the n-channel optical signals obtained after the mixing processing to the photoelectric conversion.
  • photoelectric conversion unit 40024 converts n optical signals into electrical signals, and outputs n electrical signals to analog to digital conversion unit 40025;
  • the analog-to-digital conversion unit 40025 performs analog-to-digital conversion on the input n-channel electrical signal according to the number n of sub-carriers configured by the control unit 4001, and outputs it to the digital signal processing unit 40026;
  • the digital signal processing unit 40026 recovers the n-channel electrical signal according to the demodulation format configured by the control unit 4001, and outputs the restored n-channel electrical signal to the data synthesizing unit 40027 according to the number of subcarriers n configured by the control unit 4001. ;
  • the signal is generated in the process of transmitting on the fiber link, and the digital signal processing unit 40026 performs the recovery process on the electrical signal, including: performing line compensation and demodulation processing on the electrical signal.
  • the specific implementation manner of the line compensation may be: dispersion compensation, PMD compensation, nonlinear compensation, and the like.
  • the recovery process may specifically implement the signal by using a fast Fourier transform, an equalization algorithm, an SD-FEC decoding algorithm, or the like;
  • the data synthesizing unit 40027 combines the n electrical signals into m electrical signals according to the number n of subcarriers configured by the control unit 4001, and outputs the signals.
  • the mixing unit 40029, the demultiplexer (DEMUX) 400210, the light source 40022, the subcarrier generating unit 40023, the photoelectric conversion unit 40024, the analog to digital conversion unit 40025, the digital signal processing unit 40026, and the data synthesizing unit 40027 are configured together.
  • the control unit 4001 of the receiver receives the second external command
  • the control unit 4001 configures the subcarrier generation unit 40023 and the mixing unit according to the number n of subcarriers carried in the second external command. 40029, the demultiplexer 400210, the analog to digital conversion unit 40025, the digital signal processing unit 40026, and the number of subcarriers n of the data synthesizing unit 40027, and the control unit 4001 is configured according to a modulation format (or a demodulation format) carried in the second external command. Configuring a demodulation format of the digital signal processing unit 40026;
  • control unit 4001 selects the number of subcarriers n and the demodulation format that match the reference parameter carried in the second external command by searching the pre-stored parameter correspondence, and according to The number n of selected subcarriers, the number of subcarriers n of the subcarrier generating unit 40023, the mixing unit 40029, the demultiplexer 400210, the analog to digital conversion unit 40025, the digital signal processing unit 40026, and the data synthesizing unit 40027 are controlled.
  • Unit 4001 configures the demodulation format of digital signal processing unit 40026 in accordance with the selected demodulation format.
  • the signal processing principle of the receiver shown in FIG. 12 is as follows:
  • the light source 40022 generates an optical signal.
  • the subcarrier generating unit 40023 processes the optical signal generated by the light source 40022 according to the number n of subcarriers configured by the control unit 4001, generates n way subcarriers, and outputs n subcarriers to the mixing unit 40029;
  • the mixing unit 40029 receives the input signal on the optical fiber, and performs mixing processing on the input signal according to the number of subcarriers n and n subcarriers configured by the control unit 4001, and outputs the n signal obtained after the mixing processing to the solution.
  • the demultiplexer 400210 optically demultiplexes the input signal, separates n sets of sub-wavelength optical signals according to the number n of subcarriers configured by the control unit 4001, and outputs n sets of sub-wavelength optical signals to the photoelectric conversion unit 40024.
  • each set of sub-wavelength optical signals respectively comprises four polarized lights: X/Y/I/Q;
  • the photoelectric conversion unit 40024 converts the n-channel sub-wavelength optical signal into an electrical signal, and outputs the n-channel electrical signal to the analog-to-digital conversion unit 40025;
  • the analog-to-digital conversion unit 40025 performs analog-to-digital conversion on the input n-channel electrical signals according to the number n of sub-carriers configured by the control unit 4001, and outputs the same to the digital signal processing unit 40026;
  • the digital signal processing unit 40026 recovers the n-channel electrical signal according to the modulation format configured by the control unit 4001, and outputs the restored n-channel electrical signal to the data synthesizing unit 40027 according to the number of subcarriers n configured by the control unit 4001;
  • the signal is generated in the process of transmitting on the fiber link, and the digital signal processing unit 40026 performs the recovery process on the electrical signal, including: performing line compensation and demodulation processing on the electrical signal.
  • the specific implementation manner of the line compensation may be: dispersion compensation, PMD compensation, nonlinear compensation, and the like.
  • the recovery process may specifically implement the signal by using a fast Fourier transform, an equalization algorithm, an SD-FEC decoding algorithm, or the like;
  • the data synthesizing unit 40027 combines the n electrical signals into m electrical signals according to the number n of subcarriers configured by the control unit 4001, and outputs the signals.
  • All or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to the program instructions.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes the steps of the foregoing method embodiments;
  • the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Optical Communication System (AREA)

Abstract

本发明涉及一种高速光传输系统中的参数配置方法，包括：发射机的控制单元接收第一外部命令，根据第一外部命令配置数据处理单元的调制格式；接收机的控制单元接收第二外部命令，根据第二外部命令配置数据恢复单元的解调格式。本发明实施例还提供了一种高速光传输系统及高速光传输系统中的发射机和接收机。由于可以应用于长途、短距、城域等不同应用场景及不同的信号速率，降低了网络架构的实现成本。

Description

一种高速光传输系统、设备及数据处理方法
技术领域
本发明实施例涉及高速光传输技术领域，尤其涉及一种高速光传输系统、设备及数据处理方法。
发明背景
目前，高速光传输通信网络存在多种信号速率和多个应用场景，同一信号速率(如:40G bit)有多种调制格式可采用，不同信号速率及不同应用场景所采用的调制格式也不尽相同。例如，在长途、信号速率为100G的传输系统中，可采用PM-QPSK（Polarization Multiplexing-Quadrature Phase Shift Keying,偏振复用-正交相移键控）调制等调制格式；在长途40G的传输系统中，有PM-QPSK调制、DQPSK（Differential Quadrature Phase Shift Keying，差分四相移键控）调制、DPSK(Differential Phase Shift Keying，差分相移键控)调制、ODB(Optical Duo-Binary,光二进制)调制等多种调制格式可采用；在短距（或城域）100G的传输系统中，有PM-OFDM（Polarization Multiplexing-Orthogonal Frequency Division Multiplexing，偏振复用-正交频分复用）调制、xQAM(x-Quadrature Amplitude Modulation,x路正交幅度调制)等多种调制格式可采用；短距（或城域）400G/1T传输系统中，可采用1SC-QPSK（1 Sub-Carrier- Quadrature Phase Shift Keying,个子载波的正交相移键控）等调制格式。
在高速光传输通信网络中，多种调制格式并存，不统一,采用不同调制格式的系统之间难以互通；且不同的调制格式分别由不同的装置实现，造成系统硬件成本结构分散、系统架构实现成本较高；且系统缺乏灵活性。
发明内容
本发明实施例提供了一种高速光传输系统、设备及数据处理方法，从而解决系统硬件的实现成本较高、灵活性差的问题。
本发明的目的是通过以下技术方案实现的：
一种高速光传输系统中发射机的数据处理方法，当需要对发射机的参数进行调整时，所述方法包括：
所述发射机的控制单元接收第一外部命令；
所述控制单元根据接收到的第一外部命令配置所述发射机的数据处理单元的调制格式；
所述数据处理单元根据所述控制单元配置的调制格式对待传输的信号进行调制。
一种高速光传输系统中接收机的数据处理方法，当需要对接收机的参数进行调整时，所述方法包括：
所述接收机的控制单元接收第二外部命令；
所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的解调格式；
所述数据恢复单元根据所述控制单元配置的解调格式，对输入的信号进行解调处理。
一种高速光传输系统中的发射机，包括：
控制单元和数据处理单元；
当需要对所述发射机的参数进行调整时，所述控制单元用于，接收第一外部命令，根据所述第一外部命令配置所述数据处理单元的调制格式；
所述数据处理单元用于，根据所述控制单元配置调制格式对待传输信号进行调制。
一种高速光传输系统中的接收机，包括：
控制单元、数据恢复单元；
当需要对所述接收机的参数进行调整时，所述控制单元用于，接收第二外部命令，根据所述第二外部命令配置所述数据恢复单元的解调格式；
所述数据恢复单元用于，根据所述控制单元配置的解调格式对输入的信号进行解调。
一种高速光传输系统，包括：
通过光纤链路连接的发射机和接收机；
所述发射机用于，通过控制单元接收第一外部命令，并根据所述第一外部命令配置数据处理单元的调制格式，通过所述数据处理单元根据配置的调制格式对待传输信号进行调制处理；
所述接收机用于，通过控制单元接收第二外部命令，并根据所述第二外部命令配置数据恢复单元的解调格式，通过所述数据恢复单元根据配置的解调格式对输入的信号进行解调处理。
由上述本发明的实施例提供的技术方案可以看出，本发明实施例中，由于发射机/接收机能够根据接收到的外部命令调整调制格式。不进行硬件的改变或升级就可以灵活应用于不同的传输距离，不同信号速率，及多种信号速率的混传等应用场景，使得网络的调制格式的配置和调整更为灵活，且实现了设备的归一化，降低了网络架构的实现成本。
附图简要说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作一简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的发射机数据处理方法流程图；
图2为本发明实施例提供的接收机数据处理方法流程图；
图3为本发明一个实施例提供的发射机结构示意图；
图4为本发明一个实施例提供的接收机结构示意图；
图5为本发明实施例提供的一种系统结构示意图；
图6为本发明实施例提供的另一种系统结构示意图；
图7为本发明应用实施例一提供的第一种发射机结构示意图；
图8为本发明应用实施例一提供的第二种发射机结构示意图；
图9为本发明应用实施例一提供的第三种发射机结构示意图；
图10为本发明应用实施例二提供的接收机结构示意图；
图11为本发明应用实施例三提供的接收机结构示意图；
图12为本发明应用实施例四提供的接收机结构示意图。
实施本发明的方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供一种高速光传输系统中发射机的数据处理方法，其实现方式如图1所示，具体包括如下操作：
当需要对发射机的参数进行调整时，
S101、该发射机的控制单元接收第一外部命令；
S102、上述控制单元根据接收到的第一外部命令配置所述发射机的数据处理单元的调制格式；
S103、上述数据处理单元根据上述控制单元配置的调制格式对待传输的信号进行调制。
其中，第一外部命令可以通过网管系统或控制系统等具备管理控制功能的通信系统下发，外部命令还可以通过现有的控制协议（如：通用多协议标签交换协议）等下发，外部命令还可以由用户设定，并使用计算机设备通过命令行下发。
本发明实施例提供的方法，实现了发射机调制格式的灵活可调，从而能够适应不同的应用场景，提高了发射机的应用灵活性。
上述本发明实施例提供的方法中，上述控制单元还可以根据接收到的第一外部命令配置所述发射机的数据处理单元的频谱宽度。
另外，上述控制单元还可以根据接收到的第一外部命令配置数据处理单元的数据通道数、子载波个数、发射机的光源输出功率、波长工作范围等等发射机的参数。
上述本发明实施例提供的方法中，第一外部命令中携带的可以是配置参数，该配置参数包括：调制格式。可选的，该配置参数还可以包括以下至少一种：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围等。相应的，上述控制单元具体可以根据第一外部命令中携带的调制格式对发射机的数据处理单元的调制格式进行配置。如果第一外部命令中携带的配置参数还包括频谱宽度，上述控制单元还根据第一外部命令中携带的频谱宽度对发射机的数据处理单元的频谱宽度进行配置；如果第一外部命令中携带的配置参数还包括数据通道数，上述控制单元还根据第一外部命令中携带的数据通道数对发射机的数据处理单元的数据通道数进行配置；如果第一外部命令中携带的配置参数还包括子载波个数，上述控制单元还根据第一外部命令中携带的子载波个数对发射机的数据处理单元的子载波个数进行配置；如果第一外部命令中携带的配置参数中还包括光源输出功率，上述控制单元还根据第一外部命令中携带的光源输出功率配置发射机的数据处理单元的光源输出功率；如果第一外部命令中携带的配置参数中还包括波长工作范围，上述控制单元还根据第一外部命令中携带的波长工作范围对发射机的数据处理单元的波长工作范围进行配置。
上述本发明实施例提供的方法中，第一外部命令中携带的还可以是以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；相应的，上述的控制单元根据接收到的第一外部命令配置发射机的数据处理单元的调制格式的实现方式具体可以包括：上述控制单元将接收到的第一外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的调制格式，根据选择的调制格式配置所述发射机的数据处理单元的调制格式。可选的，上述控制单元还可以将接收到的第一外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的频谱宽度、数据通道数、子载波个数、发射机的光源输出功率、和/或波长工作范围等发射机的配置参数，根据选择的发射机的配置参数，对所述发射机相应的参数进行配置。其中，参数对应关系描述了参考参数与配置参数的对应关系。
作为举例而非限定，下面对参考参数对配置参数的影响进行说明：
传输距离：发射机与接收机之间的光纤传输距离不同，发射机在光纤信道中所占用的频谱宽度、所采用的调制方式、波长工作范围、以及发射机的光源输出功率也不同。
光纤类型：不同类型光纤的PMD（Polarization Mode Dispersion，偏振模色散）系数和CD（Chromatic Dispersion，色度色散）系数不同，对光源输出功率，及波长工作范围的要求也不同。
信号速率：在多子载波复用（OFDM）的情况下，不同的信号速率所需要的子载波个数、数据通道数，和波长工作范围也不同。
信道质量：信道质量变化时，需要对调制格式、频谱宽度，及子载波个数等参数进行调整以保证信号传输质量。当信道质量下降时，可以增大频谱宽度、增加子载波个数，或者选用更高阶的调制格式。其中，信道质量可以但不仅限于包括以下参数：Optical Power（光功率，指的是检测到的系统的实际光功率]）、Qfactor（Q因子）、BER（Bit Error Ratio，比特误码率）、OSNR（Optical Signal Noise Ratio, 光信噪比）等。
在应用过程中，可以根据通信系统的实际需求配置参考参数与配置参数的对应关系。
上述本发明实施例提供的方法中，第一外部命令中还可以携带上述配置参数和参考参数，则发射机根据第一外部命令中的配置参数直接对相应的发射机的配置参数进行配置，根据第一外部命令中的参考参数，选择与参考参数匹配的发射机的配置参数进行配置。
本发明实施例还提供一种高速光传输系统中接收机的数据处理方法，其实现方式如图2所示，具体包括如下操作：
当需要对接收机的参数进行调整时，
S201、该接收机的控制单元接收第二外部命令；
S202、该接收机的控制单元根据接收到的第二外部命令配置该接收机的数据恢复单元的解调格式；
S203、该数据恢复单元根据该接收机的控制单元配置的解调格式，对输入的信号进行解调处理。
其中，第二外部命令可以通过网管系统或控制系统等具备管理控制功能的通信系统下发，外部命令还可以通过现有的控制协议（如：通用多协议标签交换协议）等下发，外部命令还可以由用户设定，并由计算机设备通过命令行下发。
本发明实施例提供的方法，实现了接收机的解调格式的灵活可调，从而能够适应不同的应用场景，提高了接收机的应用灵活性。
上述本发明实施例提供的方法中，上述接收机的控制单元还可以根据接收到的第二外部命令配置所述接收机的数据恢复单元的频谱宽度。
另外，上述接收机的控制单元还可以根据接收到的第二外部命令配置上述数据恢复单元的数据通道数、子载波个数、接收机的光源输出功率、波长工作范围等等接收机的参数。
上述本发明实施例提供的方法中，第二外部命令中携带的可以是配置参数，该配置参数包括：调制格式。可选的，该配置参数还可以包括以下至少一种：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围等。相应的，上述接收机的控制单元具体可以根据第二外部命令中携带的调制格式配置接收机的数据恢复单元的解调格式。由于解调过程是调制过程的逆过程，因此，在获知了发射机的调制格式后，接收机就可以确定相应的解调格式。如果第二外部命令中携带的配置参数还包括频谱宽度，上述接收机的控制单元还根据第二外部命令中携带的频谱宽度配置接收机的数据恢复单元的频谱宽度；如果第二外部命令中携带的配置参数还包括数据通道数，上述接收机的控制单元还根据第二外部命令中携带的数据通道数对接收机的数据恢复单元的数据通道数进行配置；如果第二外部命令中携带的配置参数还包括子载波个数，上述接收机的控制单元还根据第二外部命令中携带的子载波个数对接收机的数据恢复单元的子载波个数进行配置；如果第二外部命令中携带的配置参数中还包括光源输出功率，上述接收机的控制单元还根据第二外部命令中携带的光源输出功率配置接收机的数据恢复单元的光源输出功率；如果第二外部命令中携带的配置参数中还包括波长工作范围，上述接收机的控制单元还根据第二外部命令中携带的波长工作范围对接收机的数据恢复单元的波长功率进行配置。
上述本发明实施例提供的方法中，第二外部命令中携带的配置参数还可以包括解调格式。相应的，上述接收机的控制单元具体可以根据第二外部命令中携带的解调格式配置接收机的数据恢复单元的解调格式。
上述本发明实施例提供的方法中，第二外部命令中携带的还可以是以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；相应的，上述的接收机的控制单元根据接收到的第二外部命令配置数据恢复单元的解调格式包括：上述接收机的控制单元将接收到的第二外部命令与预先保存的参数对应关系匹配，选择与所述第二外部命令中携带的参考参数对应的解调格式，根据选择的解调格式配置接收机的解调格式。可选的，还可以将接收到的第二外部命令与预先保存的参数对应关系匹配，选择与所述第二外部命令中携带的参考参数对应的频谱宽度、数据通道数、子载波个数、接收机的光源输出功率、和/或波长工作范围等接收机的配置参数，根据选择的接收机的配置参数，对所述接收机相应的参数进行配置。其中，参数对应关系描述了参考参数与配置参数的对应关系。
上述本发明实施例提供的方法中，第二外部命令中还可以携带上述配置参数和参考参数，则接收机根据第二外部命令中的配置参数直接对相应的接收机的配置参数进行配置，根据第二外部命令中的参考参数，选择与参考参数匹配的接收机的配置参数进行配置。
本发明实施例还提供一种高速光传输系统中的发射机，其结构如图3所示，具体实现结构包括：控制单元3001和数据处理单元3002。其中：
当需要对所述发射机的参数进行调整时，控制单元3001用于，接收第一外部命令，根据该第一外部命令配置所述数据处理单元3002的调制格式；
上述第一外部命令可以通过网管系统或控制系统等具备管理控制功能的通信系统下发，外部命令还可以通过现有的控制协议（如：通用多协议标签交换协议）等下发，外部命令还可以由用户设定，并使用计算机设备通过命令行下发。
数据处理单元3002用于，根据控制单元3002配置的调制格式对待传输信号进行调制。
上述本发明实施例提供的发射机，通过控制单元的软件配置能够实现调制格式可调，从而适应不同的应用场景。较之现有技术不同的应用场景需要不同硬件结构的发射机，本发明实施例提供的发射机降低了硬件实现成本。另外，本发明实施例提供的发射机，通过软件控制即可实现调制格式可调，其配置方式灵活，且能够实现在线升级。
如果上述第一外部命令中携带的包括调制格式的配置参数，则控制单元3001的工作方式具体可以是：获取第一外部命令中的调制格式，根据获取的调制格式配置数据处理单元3002的调制格式。可选的，该第一外部命令中携带的配置参数还可以包括以下至少一种：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围等。相应的，控制单元3001还可以用于：如果第一外部命令携带的配置参数中包含频谱宽度，则获取第一外部命令中的频谱宽度，并根据获取的频谱宽度配置数据处理单元3002的频谱宽度；如果第一外部命令中携带的配置参数包含数据通道数，则获取第一外部命令中的数据通道数，并根据获取的数据通道数配置数据处理单元3002的数据通道数；如果第一外部命令中携带的配置参数中包含子载波个数，则获取第一外部命令中的子载波个数，并根据获取的子载波个数配置数据处理单元3002的子载波个数；如果第一外部命令中携带的配置参数包括光源输出功率，则获取第一外部命令中的光源输出功率，并根据获取的光源输出功率配置数据处理单元3002的光源输出功率；如果第一外部命令中携带的配置参数包括波长工作范围，则获取第一外部命令中的波长工作范围，并根据获取的波长工作范围配置数据处理单元3002的波长工作范围。
如果上述第一外部命令中携带的是以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量，则控制单元3001具体包括：
外部命令接收子单元30011，用于接收第一外部命令，该第一外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
配置参数确定子单元30012，用于将第一外部命令中携带的参考参数与预先保存的参数对应关系进行匹配，从而选择与第一外部命令中携带的参考参数对应的调制格式；可选的，配置参数确定子单元30012还可以用于，将接收到的第一外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的频谱宽度、数据通道数、子载波个数、发射机的光源输出功率、和/或波长工作范围等发射机的配置参数；
其中，该参数对应关系可以由操作人员手动配置，也可以由网管系统或控制系统下发。
配置执行子单元30013，用于根据所述选择的调制格式配置所述数据处理单元3002的调制格式；可选的，配置执行子单元30013还可以用于，根据配置参数确定子单元30012选择的发射机的配置参数对所述数据处理单元3002相应的参数进行配置。
本发明实施例还提供一种高速光传输系统中的接收机，其结构如图4所示，具体实现结构包括：控制单元4001和数据恢复单元3004。其中：
当需要对所述接收机的参数进行调整时，控制单元4001用于，接收第二外部命令，根据该第二外部命令配置数据恢复单元4002的解调格式；
上述第二外部命令可以通过网管系统或控制系统等具备管理控制功能的通信系统下发，外部命令还可以通过现有的控制协议（如：通用多协议标签交换协议）等下发，外部命令还可以由用户设定，并使用计算机设备通过命令行下发。
数据恢复单元4002，用于根据所述控制单元4001配置的解调格式对输入的信号进行解调。
上述本发明实施例提供的接收机，通过控制单元能够实现调制格式可调，从而适应不同的应用场景。本发明实施例提供的接收机能够适应不同的应用场景，较之现有技术不同的应用场景需要不同硬件结构的接收机，降低了硬件实现成本。另外，本发明实施例提供的接收机，通过软件控制即可实现解调格式的切换，其配置方式灵活，且能够实现在线升级。
如果上述第二外部命令中携带的是包括调制格式的配置参数，则控制单元4001的工作方式具体可以是：获取第二外部命令中的调制格式，根据获取的调制格式配置数据恢复单元4002的解调格式；可选的，该第二外部命令中携带的配置参数还可以包括以下至少一种：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围等。相应的，控制单元4001还可以用于：如果第二外部命令携带的配置参数中包含频谱宽度，则获取第二外部命令中的频谱宽度，并根据获取的频谱宽度配置数据恢复单元4002的频谱宽度；如果第二外部命令中携带的配置参数包含数据通道数，则获取第二外部命令中的数据通道数，并根据获取的数据通道数配置数据恢复单元4002的数据通道数；如果第二外部命令中携带的配置参数中包含子载波个数，则获取第二外部命令中的子载波个数，并根据获取的子载波个数配置数据恢复单元4002的子载波个数；如果第二外部命令中携带的配置参数包括光源输出功率，则获取第二外部命令中的光源输出功率，并根据获取的光源输出功率配置数据恢复单元4002的光源输出功率；如果第二外部命令中携带的配置参数包括波长工作范围，则获取第二外部命令中的波长工作范围，并根据获取的波长工作范围配置数据恢复单元4002的波长工作范围。
上述第二外部命令中携带的配置参数中还可以包括解调格式，而非调制格式，则控制单元4001的工作方式具体可以获取第二外部命令中的解调格式，根据获取的解调格式配置数据恢复单元4002的解调格式。
如果上述第二外部命令中携带的是以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量，则控制单元4001具体包括：
外部命令接收子单元40011，用于接收上述第二外部命令，该第二外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
配置参数确定子单元40012，用于将所述第二外部命令中携带的参考参数与预先保存的参数对应关系匹配，从而选择与所述第二外部命令中携带的参考参数对应的解调格式；可选的，配置参数确定子单元40012还可以用于，将接收到的第二外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第二外部命令中携带的参考参数对应的频谱宽度、数据通道数、子载波个数、接收机的光源输出功率、和/或波长工作范围等接收机的配置参数；
其中，该参数对应关系可以由操作人员手动配置，也可以由网管系统或控制系统下发；
配置执行子单元40013，用于根据选择的解调格式配置所述数据恢复单元的解调格式；可选的，配置执行子单元40013还可以用于，根据配置参数确定子单元40012选择的接收机的配置参数对所述数据恢复单元4002相应的参数进行配置。
本发明实施例还提供一种高速光传输系统，其结构如图5所示，具体实现结构包括：发射机300、接收机400、连接发射机300与接收机400的光纤链路200。
发射机300用于，通过控制单元3001接收第一外部命令，并根据该第一外部命令配置发射机300的数据处理单元3002的调制格式，通过所述数据处理单元3002根据配置的调制格式对待传输信号进行调制处理；
接收机400用于，通过控制单元4001接收第二外部命令，并根据该第二外部命令配置接收机400的数据恢复单元4002的解调格式，通过数据恢复单元4002根据配置的解调格式对输入的信号进行解调处理。
上述本发明实施例提供的系统，发射机/接收机能够根据接收到的外部命令，调整调制格式，进而根据配置的参数对信号进行处理。也就是说，系统中的发射机/接收机通过调整调制格式等参数，不进行硬件改变或升级的就可以灵活应用于长途、短距、城域，及不同的信号速率等应用场景，能够实现高速光传输网络中，通信设备的模块化生产，从而降低了网络架构的实现成本。
上述本发明实施例提供的系统中还可以包括至少一个Flex ROADM（Flex Reconfigurable Optical Add-Drop Multiplexer，带宽可变的可重构光分插复用器）100。如图6所示，Flex ROADM100、发射机300和接收机400之间通过光纤链路200连接，该Flex ROADM用于，接收第三外部命令，根据该第三外部命令配置频谱宽度、信号速率和/或子载波个数。
下面将对本发明实施例在实际应用过程中的具体实现方式进行详细的说明。
在高速光传输网络中，针对不同的应用场景（例如根据发射机与接收机之间传输距离的不同，应用场景可分为长途、短距和城域，还可以根据信号速率、光纤类型等划分应用场景），以及不同的系统性能参数（系统性能参数可以但不仅限于包括：光纤链路的信道质量、发射机的光源输出功率、和接收机的光源输出功率），甚至不同的用户要求，有多种调制格式可供选择。为了适应不同的传输距离，发射机、接收机（可选的还包括Flex ROADM）还可能需要配置与传输距离匹配的频谱宽度，为了适应不同的信号速率，发射机、接收机（可选的还包括Flex ROADM）还可能需要配置与信号速率匹配的数据通道数及子载波个数。另外，发射机、接收机还可能需要根据不同的应用场景配置其他参数。因此，在本发明实施例中，（一）外部命令（包括第一外部命令、第二外部命令，和第三外部命令）的发送方可以根据应用场景及系统性能参数选择调制格式（可选的还选择：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围）等配置参数，并将选择的配置参数携带在外部命令中（其中，确定了调制格式，也就确定了解调格式，在第二外部命令中既可以携带选择的调制格式，也可以携带相应的解调格式）；或者，（二）由用户人工确定调制格式（可选的还确定：频谱宽度、数据通道数、子载波个数、光源输出功率、波长工作范围）等配置参数，计算机设备通过执行用户输入的指令，将用户确定的配置参数携带在外部命令中；或者，（三）外部命令的发送方通过发送给发射机的第一外部命令和发送给接收机的第二外部命令，分别向发射机和接收机发送以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量，以便发射机根据这些参考参数选择调制格式（可选的还选择：频谱宽度、数据通道数、子载波个数、光源输出功率、和/或波长工作范围）等发射机的配置参数，以便接收机根据这些参考参数选择解调格式（可选的还选择：频谱宽度、数据通道数、子载波个数、光源输出功率、和/或波长工作范围）等接收机的配置参数；可选的，外部命令发送方通过第三外部命令，向Flex ROADM发送信号速率和以下至少一种参考参数：传输距离、光纤类型、信道质量，以便Flex ROADM根据这些参考参数确定子载波个数、信号速率和频谱宽度；或者，（四）外部命令的发送方在发送给发射机和接收机的外部命令中，既包括配置参数，也包括参考参数；则发射机根据第一外部命令中的配置参数直接对相应的发射机的配置参数进行配置，根据第一外部命令中的参考参数，选择与参考参数匹配的发射机的配置参数进行配置；接收机根据第二外部命令中的配置参数直接对相应的接收机的配置参数进行配置，根据第二外部命令中的参考参数，选择与参考参数匹配的接收机的配置参数进行配置。
如果采用上述第（一）种实现方式，则可以预先在外部命令的发送方配置参数对应关系。
如果采用上述第（三）种或第（四）种实现方式，则可以预先在发射机、接收机和Flex ROADM中配置上述参数对应关系。
本发明实施例中的参数对应关系中，记载了参考参数与配置参数的对应关系。
根据应用场景及系统性能参数等参考参数选择配置参数（配置参数包括：调制格式、频谱宽度、数据通道数、子载波个数等）可通过现有的实现方式实现，本发明实施例以参考参数包括：光纤类型、信号速率、传输距离时，参数对应关系的配置进行举例说明：
当系统中的信号速率为100G时，系统中选择采用1个子载波承载信号。其中，长途（传输距离大于200千米，一般在200千米～2000千米之间）100G系统可采用的频谱宽度为50GHz，调制格式为PM-QPSK，发射机/接收机的检测方式为相干检测；短距/城域（传输距离小于200千米）100G系统可采用的频谱宽度为25GHz，调制格式可以是PM-16-QAM（发射机/接收机的检测方式为相干检测），可采用的频谱宽度还可以是50GHz，调制格式可以是PM-OFDM（发射机/接收机的检测方式为相干检测）或OFDM-QPSK（发射机/接收机的检测方式为直接检测）。
当系统中的信号速率为400G时，传输距离大于500千米的长途400G系统可采用的频谱宽度为125GHz，调制格式为PM-OFDM-QPSK（发射机/接收机的检测方式为相干检测），可采用5个子载波承载信号；传输距离在100千米-500千米之间的短距/城域400G系统可采用2个子载波承载信号，频谱宽度为100GHz，调制格式为PM-16QAM，发射机/接收机的检测方式为相干检测；传输距离小于80千米的短距/城域400G系统可采用2～3个子载波承载信号，频谱宽度为75GHz，调制格式为PM-32QAM，发射机/接收机的检测方式为相干检测。
当系统中的信号速率为1T时，传输距离大于500千米的长途1T系统可采用12个子载波承载信号，频谱宽度为300GHz，调制格式为PM-OFDM-QPSK，发射机/接收机的检测方式为相干检测；传输距离在100千米-500千米之间的短距/城域1T系统可采用6个子载波承载信号，频谱宽度为150GHz，调制格式为PM-OFDM-16QAM，发射机/接收机的检测方式为相干检测；传输距离小于80千米的短距/城域1T系统可采用4个子载波承载信号，频谱宽度为25GHz，调制格式为PM-OFDM-32QAM，发射机/接收机的检测方式为相干检测。
以G.652光纤为例，根据上述原理确定的参数对应关系如表1所示：
信号速率(bit/s) 传输距离(千米) 频谱宽度(GHz) 调制格式 子载波个数(个) 检测方式
100G >200 50 PM-QPSK 1 相干检测
<200 25 PM-16-QAM 1 相干检测
<200 50 PM-OFDM-QPSK 1 相干检测
<200 50 OFDM-QPSK(直接调制) 1 直接检测
400G >500 125 PM-OFDM-QPSK 5 相干检测
100-500 100 PM-16QAM 2 相干检测
<100 75 PM-32QAM 2~3 相干检测
1T >500 300 PM-OFDM-QPSK 12 相干检测
100-500 150 PM-OFDM-16QAM 6 相干检测
<100 100 PM-OFDM-32QAM 4 相干检测
表1
下面将对本发明实施例提供的发射机及其参数配置方法在实际应用过程中的具体实现方式进行详细的说明。
应用实施例一
在该应用实施例一中，发射机的具体实现结构如图7所示，
其中，数据编码分发单元30021、数字信号处理（Digital Signal Processor，DSP）单元30022、数模转换（Digital Analogue Conversion，DAC）单元30023、光源30024、偏振分束器30025、子载波生成单元30026、调制单元30027、偏振合束器30028和复用器（Muxplexer，MUX）30029共同构成了数据处理单元3002。
当调制格式为1个子载波的OFDM调制（包括相干检测的PM-OFDM-QPSK调制，和直接检测到OFDM-QPSK调制）时，不需要数字信号处理单元30022和数模转换单元30023，控制单元3001可通过模拟开关300210断开数字处理单元30022和数模转换单元30023。相应的，发射机的实现结构如图8所示。
当不需要对信号进行预处理时，不需要数字信号处理单元30022，控制单元3001可通过模拟开关300210断开数字处理单元30022。相应的，发射机的实现结构如图9所示。
图7所示的发射机的参数配置工作原理如下：
发射机的控制单元3001接收第一外部命令；
如果该第一外部命令中携带数据通道数、子载波个数和调制格式，控制单元3001根据第一外部命令中携带的数据通道数N，配置数据编码分发单元30021的数据通道数N，控制单元3001根据第一外部命令中携带的子载波个数n，配置子载波生成单元30026、数字信号处理单元30022、数模转换单元30023、和调制单元30027的子载波个数n，控制单元3001根据第一外部命令中携带的调制格式，配置调制单元30027的调制格式；
如果该第一外部命令中携带的是参考参数，控制单元3001通过查找预先保存的参数对应关系，选择与第一外部命令中携带的参考参数匹配的数据通道数N、子载波个数n和调制格式，并根据选择的数据通道数N配置数据编码分发单元30021的数据通道数N，根据选择的子载波个数n，配置子载波生成单元30026、数字信号处理单元30022、数模转换单元30023、和调制单元30027的子载波个数n，根据确定的调制格式，配置调制单元30027的调制格式。
如果调制格式为1个子载波的OFDM调制，则控制单元3001通过控制模拟开关300210，切断数字信号处理单元30022与数据编码分发单元30021的连接，并切断数模转换单元30023与调制单元30027的连接，使得数据编码分发单元30021直接与调制单元30027连接（如图8所示）。如果不需要对信号进行预处理，控制单元3001还可以通过控制模拟开关300210，切断数字信号处理单元30022与数据编码分发单元30021之间的连接，并切断数字信号处理单元30022与数模转换单元30023之间的连接，使得数据编码发分发单元30021直接与数模转换单元30023连接。
完成了上述参数配置后，图7所示的发射机的信号处理工作原理如下：
在电路部分：
S301、高速并行的m路电信号进入数据编码分发单元30021，由数据编码分发单元30021对输入的m路电信号进行m:N转换，输出N路电信号；其中，N为控制单元3001配置的数据通道数；如果输入的电信号没有进行编码，则数据编码分发单元30021在对输入的电信号进行m:N转换之前，还根据预定的编码格式对输入的m路电信号进行编码。编码可以是SD-FEC(Soft-Decision Forward Error Correction, 软判决前向纠错)或HD-FEC（Hard-Decision Forward Error Correction, 硬判决前向纠错）；
如果不需要对信号进行预处理，但需要进行数模转换，则执行S303；
如果不需要对信号进行预处理且不需要对信号进行数模转换，则执行S304，且数据编码分发单元30021实际进行的是m:n转换（即数据通道数N=子载波个数n），输出的n路电信号可以分两组，每组n路，分别进入两组调制器30027的I/Q两臂；也可以分四组，每组n路，分别进入两组调制器30027的I/Q、X/Y四个臂；
如果需要对信号进行预处理，执行S302、数据编码分发单元30021输出的N路电信号进入数字信号处理单元30022，由数字信号处理单元30022对输入的电信号进行信号预处理后，按照控制单元3001配置的子载波个数n输出n路电信号给数模转换单元30023，执行S303；
S303、数模转换单元30023按照控制单元3001配置的子载波个数n对输入的n路电信号进行数模转换处理后，输出给调制单元30027；
其具体实现方式可以是：（一）分两组，每组n路，分别向两组调制器30027的I/Q两臂输出电信号；（二）分四组，每组n路，分别向两组调制器30027的I/Q、X/Y四个臂输出电信号。
在光路部分：
S304、光源30024产生光信号；
S305、偏振分束器30028将光源30024产生的光信号分为两束偏振光，并将两束偏振光分别输出给两组子载波生成单元30026；
S306、两组子载波生成单元30026分别对输入的偏振光进行处理，生成n路子载波，并分别将n路子载波输出给两组调制单元30027的I/Q两臂；或者，分别将n路子载波输出给两组调制单元30027的I/Q、X/Y四个臂；
其中，n为控制单元3001配置的子载波个数。
S307、每组调制单元30027按照控制单元3001配置的调制格式对输入的光信号和电信号进行调制，并按照控制单元3001配置的子载波个数分别生成n路子波长光信号；
S308、偏振合束器30028按照控制单元3001配置的调制格式对两组调制单元30027生成的子波长光信号进行波束合成处理，输出n路子波长光信号；
S309、复用器30029对偏振合束器30028输出的n路子波长光信号进行波长合并处理，合并后的光信号为发射机的输出信号。
下面将对本发明实施例提供的接收机及其参数配置方法在实际应用过程中的具体实现方式进行详细的说明。
应用实施例二
在该应用实施例二中，接收机的具体实现结构如图10所示。
其中，混频及子载波分离单元40021、光源40022、子载波生成单元40023、光电转换（Optical/Electrical，O/E）单元40024、模数转换（Analogue Digital Conversion，ADC）单元40025、数字信号处理（DSP）单元40026和数据合成单元40027共同构成了数据恢复单元4002。
图10所示的接收机的参数配置工作原理如下：
接收机的控制单元4001接收第二外部命令；
如果该第二外部命令中携带子载波个数n和调制格式（或者解调格式），控制单元4001根据第二外部命令中携带的子载波个数n，配置子载波生成单元40023、混频及子载波分离单元40021、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据第二外部命令中携带的调制格式（或者解调格式），配置数字信号处理单元40026的解调格式；
如果该第二外部命令中携带的是参考参数，控制单元4001通过查找预先保存的参数对应关系，选择与第二外部命令中携带的参考参数匹配的子载波个数n和解调格式，并根据选择的子载波个数n，配置子载波生成单元40023、混频及子载波分离单元40021、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据选择的解调格式，配置数字信号处理单元40026的解调格式。
完成了上述参数配置后，图10所示的接收机的信号处理工作原理如下：
在光路部分：
S401、光源40022产生光信号；
S402、子载波生成单元40023对光源40022产生的光信号进行处理后，生成n路子载波，并将n路子载波输出给混频及子载波分离单元40021；
在电路部分：
S403、混频及子载波分离单元40021接收光纤上的输入信号，并根据控制单元4001配置的子载波个数n对输入信号进行混频处理，将混频处理后的n路信号进行子载波分离，分离出n路子波长光信号输出给光电转换单元40024；
S404、光电转换单元40024将n路子波光长信号转换为电信号后，将n路电信号输出给模数转换单元40025；
S405、模数转换单元40025根据控制单元4001配置的子载波个数n对输入的ｎ路电信号进行模数转换后，输出给数字信号处理单元40026；
S406、数字信号处理单元40026根据控制单元4001配置的解调格式对n路电信号进行恢复，并根据控制单元4001配置的子载波个数n将恢复后的n路电信号输出给数据合成单元40027；
其中，信号在光纤链路上传输的过程中会产生损耗，数字信号处理单元40026对电信号进行恢复处理具体包括：对电信号进行线路补偿以及解调处理。其中，线路补偿的具体实现方式可以是：色散补偿、PMD补偿、非线性补偿等。恢复处理具体可以通过快速傅立叶变换、均衡算法、SD-FEC解码算法等对信号进行实现；
S407、数据合成单元40027根据控制单元4001配置的子载波个数n将n路电信号合并成m路电信号后输出。
应用实施例三
在该应用实施例三中，接收机的具体实现结构如图11所示。
其中，子载波分离单元40028、混频单元40029、光源40022、子载波生成单元40023、光电转换单元40024、模数转换单元40025、数字信号处理单元40026和数据合成单元40027共同构成了数据恢复单元4002。
图11所示的接收机的参数配置工作原理如下：
接收机的控制单元4001接收第二外部命令；
如果该第二外部命令中携带子载波个数n和调制格式（或者解调格式），控制单元4001根据第二外部命令中携带的子载波个数n，配置子载波生成单元40023、子载波分离单元40028、混频单元40029、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据第二外部命令中携带的调制格式（或者解调格式），配置数字信号处理单元40026的解调格式；
如果该第二外部命令中携带的是参考参数，控制单元4001通过查找预先保存的参数对应关系，选择与第二外部命令中携带的参考参数匹配的子载波个数n和解调格式，并根据选择的子载波个数n，配置子载波生成单元40023、子载波分离单元40028、混频单元40029、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据选择的解调格式，配置数字信号处理单元40026的解调格式。
完成了参数配置后，图11所示的接收机的信号处理工作原理如下：
在光路部分：
S501、光源40022产生光信号；
S502、子载波生成单元40028根据控制单元4001配置的子载波个数n对光源40022产生的光信号进行处理后，生成n路子载波，并将n路子载波输出给混频单元40029；
在电路部分：
S503、子载波分离单元40028根据控制单元4001配置的子载波个数n将光纤的输入信号进行子载波分离，分离出n路子波长光信号，并将ｎ路子波长光信号输出给混频单元40029；
S504、混频单元40029根据控制单元4001配置的子载波个数n及n路子载波分别对输入的n路子波长光信号进行混频处理，将混频处理后得到的n路光信号输出给光电转换单元40024；
S505、光电转换单元40024将n路光信号转换为电信号后，将n路电信号输出给模数转换单元40025；
S506、模数转换单元40025根据控制单元4001配置的子载波个数n对输入的ｎ路电信号进行模数转换后，输出给数字信号处理单元40026；
S507、数字信号处理单元40026根据控制单元4001配置的解调格式对n路电信号进行恢复，并根据控制单元4001配置的子载波个数n将恢复后的n路电信号输出给数据合成单元40027；
其中，信号在光纤链路上传输的过程中会产生损耗，数字信号处理单元40026对电信号进行恢复处理具体包括：对电信号进行线路补偿以及解调处理。其中，线路补偿的具体实现方式可以是：色散补偿、PMD补偿、非线性补偿等。恢复处理具体可以通过快速傅立叶变换、均衡算法、SD-FEC解码算法等对信号进行实现；
S508、数据合成单元40027根据控制单元4001配置的子载波个数n将n路电信号合并成m路电信号后输出。
应用实施例四
在该应用实施例四中，接收机的具体实现结构如图12所示。
其中，混频单元40029、解复用器（Demuxplexer，DEMUX）400210、光源40022、子载波生成单元40023、光电转换单元40024、模数转换单元40025、数字信号处理单元40026和数据合成单元40027共同构成了数据恢复单元4002。
图12所示的接收机的参数配置工作原理如下：
接收机的控制单元4001接收第二外部命令；
如果该第二外部命令中携带子载波个数n和调制格式（或者解调格式），控制单元4001根据第二外部命令中携带的子载波个数n，配置子载波生成单元40023、混频单元40029、解复用器400210、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据第二外部命令中携带的调制格式（或者解调格式），配置数字信号处理单元40026的解调格式；
如果该第二外部命令中携带的是参考参数，控制单元4001通过查找预先保存的参数对应关系，选择与第二外部命令中携带的参考参数匹配的子载波个数n和解调格式，并根据选择的子载波个数n，配置子载波生成单元40023、混频单元40029、解复用器400210、模数转换单元40025、数字信号处理单元40026和数据合成单元40027的子载波个数n，控制单元4001根据选择的解调格式，配置数字信号处理单元40026的解调格式。
完成了参数配置后，图12所示的接收机的信号处理工作原理如下：
在光路部分：
S601、光源40022产生光信号；
S602、子载波生成单元40023根据控制单元4001配置的子载波个数n对光源40022产生的光信号进行处理后，生成n路子载波，并将n路子载波输出给混频单元40029；
在电路部分：
S603、混频单元40029接收光纤上的输入信号，并根据控制单元4001配置的子载波个数n及n路子载波对输入信号进行混频处理，将混频处理后得到的n路信号输出给解复用器400210；
S604、解复用器400210对输入的信号进行光解复用，根据控制单元4001配置的子载波个数n分离出n组子波长光信号，将n组子波长光信号输出给光电转换单元40024，其中，每组子波长光信号分别包含四路偏振光：X/Y/I/Q；
S605、光电转换单元40024将n路子波长光信号转换为电信号后，将n路电信号输出给模数转换单元40025；
S606、模数转换单元40025根据控制单元4001配置的子载波个数n对输入的ｎ路电信号进行模数转换后，输出给数字信号处理单元40026；
S607、数字信号处理单元40026根据控制单元4001配置的调制格式对n路电信号进行恢复，并根据控制单元4001配置的子载波个数n将恢复后的n路电信号输出给数据合成单元40027；
其中，信号在光纤链路上传输的过程中会产生损耗，数字信号处理单元40026对电信号进行恢复处理具体包括：对电信号进行线路补偿以及解调处理。其中，线路补偿的具体实现方式可以是：色散补偿、PMD补偿、非线性补偿等。恢复处理具体可以通过快速傅立叶变换、均衡算法、SD-FEC解码算法等对信号进行实现；
S608、数据合成单元40027根据控制单元4001配置的子载波个数n将n路电信号合并成m路电信号后输出。
实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (24)

  1. 一种高速光传输系统中发射机的数据处理方法，其特征在于，当需要对发射机的参数进行调整时，所述方法包括：
    所述发射机的控制单元接收第一外部命令；
    所述控制单元根据接收到的第一外部命令配置所述发射机的数据处理单元的调制格式；
    所述数据处理单元根据所述控制单元配置的调制格式对待传输的信号进行调制。
  2. 根据权利要求1所述的方法，其特征在于，所述第一外部命令中携带配置参数，所述配置参数包括：调制格式；
    所述控制单元根据接收到的第一外部命令配置所述发射机的数据处理单元的调制格式包括：
    所述控制单元根据所述第一外部命令中携带的调制格式，配置所述发射机的数据处理单元的调制格式。
  3. 根据权利要求1所述的方法，其特征在于，所述第一外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
    所述控制单元根据接收到的第一外部命令配置所述发射机的数据处理单元的调制格式包括：
    所述控制单元将所述第一外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的调制格式；
    所述控制单元根据选择的调制格式配置所述发射机的数据处理单元的调制格式。
  4. 根据权利要求1～3任意一项所述的方法，其特征在于，该方法还包括：
    所述控制单元根据接收到的第一外部命令配置所述数据处理单元的频谱宽度；
    如果所述第一外部命令中携带配置参数，所述配置参数还包括：频谱宽度；
    如果所述第一外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量，所述控制单元根据接收到的第一外部命令配置所述数据处理单元的频谱宽度包括：将所述第一外部命令与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的频谱宽度，根据选择的频谱宽度配置所述发射机的数据处理单元的频谱宽度。
  5. 根据权利要求1～3任意一项所述的方法，其特征在于，该方法还包括：
    所述控制单元根据接收到的第一外部命令，对以下至少一种发射机的数据处理单元的参数进行配置：数据通道数、子载波个数、发射机的光源输出功率、波长工作范围。
  6. 根据权利要求1～5任意一项所述的方法，其特征在于，所述第一外部命令由网管系统或控制系统下发给所述发射机；或者，所述第一外部命令通过控制协议下发给所述发射机；所述第一外部命令由计算机设备通过命令行下发给所述发射机。
  7. 一种高速光传输系统中接收机的数据处理方法，其特征在于，当需要对接收机的参数进行调整时，所述方法包括：
    所述接收机的控制单元接收第二外部命令；
    所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的解调格式；
    所述数据恢复单元根据所述控制单元配置的解调格式，对输入的信号进行解调处理。
  8. 根据权利要求7所述的方法，其特征在于：
    所述第二外部命令中携带配置参数，所述配置参数包括：调制格式，所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的解调格式包括：根据所述第二外部命令中携带的调制格式配置所述接收机的数据恢复单元的解调格式；
    或者，
    所述第二外部命令中携带配置参数，所述配置参数包括：解调格式，所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的解调格式包括：根据所述第二外部命令中携带的解调格式配置所述接收机的数据恢复单元的解调格式。
  9. 根据权利要求7所述的方法，其特征在于，所述第二外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
    所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的解调格式包括：
    所述控制单元将所述第二外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第二外部命令中携带的参考参数对应的解调格式，根据选择的解调格式配置所述接收机的数据恢复单元的解调格式。
  10. 根据权利要求7～9任意一项所述的方法，其特征在于，该方法还包括：
    所述控制单元根据接收到的第二外部命令配置所述数据恢复单元的频谱宽度；
    如果所述第二外部命令中携带配置参数，所述配置参数还包括：频谱宽度；
    如果所述第二外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量，所述控制单元根据接收到的第二外部命令配置所述接收机的数据恢复单元的频谱宽度包括：将所述第二外部命令与预先保存的参数对应关系进行匹配，选择与所述第二外部命令中携带的参考参数对应的频谱宽度，根据选择的频谱宽度配置所述接收机的数据恢复单元的频谱宽度。
  11. 根据权利要求7～9任意一项所述的方法，其特征在于，该方法还包括：
    所述控制单元根据接收到的第二外部命令，对以下至少一种接收机的数据恢复单元的参数进行配置：数据通道数、子载波个数、接收机的光源输出功率、波长工作范围。
  12. 根据权利要求7～11任意一项所述的方法，其特征在于，所述第二外部命令由网管系统或控制系统下发给所述接收机；或者，所述第二外部命令通过控制协议下发给所述接收机；所述第二外部命令由计算机设备通过命令行下发给所述接收机。
  13. 一种高速光传输系统中的发射机，其特征在于，包括：
    控制单元和数据处理单元；
    当需要对所述发射机的参数进行调整时，所述控制单元用于，接收第一外部命令，根据所述第一外部命令配置所述数据处理单元的调制格式；
    所述数据处理单元用于，根据所述控制单元配置调制格式对待传输信号进行调制。
  14. 根据权利要求13所述的发射机，其特征在于，所述控制单元包括：
    外部命令接收子单元，用于接收所述第一外部命令，所述第一外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
    配置参数确定子单元，用于将所述第一外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第一外部命令中携带的参考参数对应的调制格式；
    配置执行子单元，用于根据所述选择的调制格式配置所述数据处理单元的调制格式。
  15. 根据权利要求13或14所述的发射机，其特征在于，所述数据处理单元包括：数据编码分发单元、数字信号处理单元、数模转换单元、光源、偏振分束器、子载波生成单元、调制单元、偏振合束器和复用器；
    所述控制单元具体用于，根据所述第一外部命令对所述调制单元的调制格式进行配置，根据所述第一外部命令，对所述子载波生成单元、数字信号处理单元、数模转换单元和调制单元的子载波个数进行配置，根据所述第一外部命令，对所述数据编码分发单元的数据通道数进行配置；
    所述数据编码分发单元用于，将输入的m路电信号按照所述控制单元配置的数据通道数进行m;N转换，生成N路电信号；如果输入的是为经过编码的m路电信号，所述数据编码分发单元还用于根据预定的编码格式对输入的m路电信号进行编码处理；
    所述数字信号处理单元用于，将所述N路电信号进行信号预处理，按照所述控制单元配置的子载波个数输出n路电信号；
    所述数模转换单元用于，按照所述控制单元配置的子载波个数对输入的n路电信号进行数模转换；
    所述光源用于产生光信号；
    所述偏振分束器用于，将所述光源产生的光信号分为两束偏振光，并将两束偏振光分别输出给两组子载波生成单元；
    所述两组子载波生成单元用于，分别对输入的偏振光进行处理，按照所述控制单元配置的子载波个数生成n路子载波，并将所述n路子载波输出给两组调制单元；
    所述两组调制单元用于，按照所述控制单元配置的调制格式，对输入的光信号和电信号进行调制，并按照所述控制单元配置的子载波个数生成n路子波长光信号后输出给所述偏振合束器；
    所述偏振合束器用于，按照所述控制单元配置的子载波个数对两组调制单元生成的n路子波长光信号进行波束合并处理，向所述复用器输出n路子波长光信号；
    所述复用器用于，对输入的n路子波长光信号进行波长合并处理，输出合并后的光信号。
  16. 根据权利要求15所述的发射机，其特征在于，如果所述控制单元为所述调制单元配置的调制格式为1个子载波的正交频分复用调制时，所述控制单元还用于：通过模拟开关断开所述数字信号处理单元和所述数模转换单元；
    所述数据编码分发单元与所述调制单元连接；所述光源与所述偏振分束器连接；所述偏振分束器还与所述子载波生成单元连接；所述两组子载波生成单元还分别与所述两组调制单元连接；所述两组调制单元还与所述偏振合束器连接；所述偏振合束器还与所述复用器连接。
  17. 根据权利要求15所述的发射机，其特征在于，如果不需要进行信号预处理，所述控制单元还用于，通过模拟开关断开所述数字处理单元；
    所述数据编码分发单元与所述数模转换单元连接；所述数模转换单元还与所述调制单元连接；所述光源与所述偏振分束器连接；所述偏振分束器还与所述子载波生成单元连接；所述两组子载波生成单元还分别与所述两组调制单元连接；所述两组调制单元还与所述偏振合束器连接；所述偏振合束器还与所述复用器连接。
  18. 一种高速光传输系统中的接收机，其特征在于，包括：
    控制单元、数据恢复单元；
    当需要对所述接收机的参数进行调整时，所述控制单元用于，接收第二外部命令，根据所述第二外部命令配置所述数据恢复单元的解调格式；
    所述数据恢复单元用于，根据所述控制单元配置的解调格式对输入的信号进行解调。
  19. 根据权利要求18所述的接收机，其特征在于，所述控制单元包括：
    外部命令接收子单元，用于接收所述第二外部命令，所述第二外部命令中携带以下至少一种参考参数：传输距离、光纤类型、信号速率、信道质量；
    配置参数确定子单元，用于将所述第二外部命令中携带的参考参数与预先保存的参数对应关系匹配，选择与所述第二外部命令中携带的参考参数对应的解调格式；
    配置执行子单元，用于根据选择的解调格式配置所述数据恢复单元的解调格式。
  20. 根据权利要求18或19所述的接收机，其特征在于，所述数据恢复单元包括：混频及子载波分离单元、光源、子载波生成单元、光电转换单元、模数转换单元、数字信号处理单元和数据合成单元；
    所述控制单元具体用于，根据所述第二外部命令对所述数字信号处理单元的解调格式进行配置，根据所述第二外部命令，对所述子载波生成单元、混频及子载波分离单元、模数转换单元、数字信号处理单元和数据合成单元的子载波个数进行配置；
    所述光源用于产生光信号；
    所述子载波生成单元用于，根据所述控制单元配置的子载波个数对所述光信号进行处理后，生成n路子载波，并将所述n路子载波输出给所述混频及子载波分离单元；
    所述混频及子载波分离单元用于，根据所述控制单元配置的子载波个数对输入信号进行混频处理，将混频处理后的n路信号进行子载波分离，分离出n路子波长光信号输出给所述光电转换单元；
    所述光电转换单元用于，将所述n路子波长光信号转换为电信号后，将所述n路电信号输出给所述模数转换单元；
    所述模数转换单元用于，根据所述控制单元配置的子载波个数对输入的n路电信号进行模数转换后，输出给所述数字信号处理单元；
    所述数字信号处理单元用于，根据所述控制单元配置的解调格式对n路电信号进行恢复，并根据所述控制单元配置的子载波个数将恢复后的n路电信号输出给所述数据合成单元；
    所述数据合成单元用于，根据所述控制单元配置的子载波个数将n路电信号合并成m路电信号后输出。
  21. 根据权利要求18或19所述的接收机，其特征在于，所述数据恢复单元包括：子载波分离单元、混频单元、光源、子载波生成单元、光电转换单元、模数转换单元、数字信号处理单元和数据合成单元；
    所述控制单元具体用于，根据所述第二外部命令对所述数字信号处理单元的解调格式进行配置，根据所述第二外部命令，对所述子载波生成单元、子载波分离单元、混频单元、模数转换单元、数字信号处理单元和数据合成单元的子载波个数进行配置；
    所述光源用于产生光信号；
    所述子载波生成单元用于，根据所述控制单元配置的子载波个数对所述光信号进行处理后，生成n路子载波，并将所述n路子载波输出给所述混频单元；
    所述子载波分离单元用于，根据所述控制单元配置的子载波个数，将输入信号进行子载波分离，分离出n路子波长光信号输出给所述混频单元；
    所述混频单元用于，根据所述控制单元配置的子载波个数及所述子载波生成单元输出的n路子载波分别对输入的n路子波长光信号进行混频处理，将混频处理后得到的n路光信号输出给所述光电转换单元；
    所述光电转换单元用于，将所述n路子波长光信号转换为电信号后，将所述n路电信号输出给所述模数转换单元；
    所述模数转换单元用于，根据所述控制单元配置的子载波个数对输入的n路电信号进行模数转换后，输出给所述数字信号处理单元；
    所述数字信号处理单元用于，根据所述控制单元配置的解调格式对n路电信号进行恢复，并根据所述控制单元配置的子载波个数将恢复后的n路电信号输出给所述数据合成单元；
    所述数据合成单元用于，根据所述控制单元配置的子载波个数将n路电信号合并成m路电信号后输出。
  22. 根据权利要求18或19所述的接收机，其特征在于，所述数据恢复单元包括：混频单元、解复用器、光源、子载波生成单元、光电转换单元、模数转换单元、数字信号处理单元和数据合成单元；
    所述控制单元具体用于，根据所述第二外部命令对所述数字信号处理单元的解调格式进行配置，根据所述第二外部命令，对所述子载波生成单元、混频单元、解复用器、模数转换单元、数字信号处理单元和数据合成单元的子载波个数进行配置；
    所述光源用于产生光信号；
    所述子载波生成单元用于，根据所述控制单元配置的子载波个数对所述光信号进行处理后，生成n路子载波，并将所述n路子载波输出给所述混频单元；
    所述混频单元用于，根据所述控制单元配置的子载波个数及所述子载波生成单元输出的n路子载波分别对输入的n路子波长光信号进行混频处理，将混频处理后得到的n路光信号输出给所述解复用器；
    所述解复用器用于，对输入的n路光信号进行光解复用，根据所述控制单元配置的子载波个数分离出n组子波长光信号，将所述n组子波长光信号输出给所述光电转换单元；
    所述光电转换单元用于，将所述n路子波长光信号转换为电信号后，将所述n路电信号输出给所述模数转换单元；
    所述模数转换单元用于，根据所述控制单元配置的子载波个数对输入的n路电信号进行模数转换后，输出给所述数字信号处理单元；
    所述数字信号处理单元用于，根据所述控制单元配置的解调格式对n路电信号进行恢复，并根据所述控制单元配置的子载波个数将恢复后的n路电信号输出给所述数据合成单元；
    所述数据合成单元用于，根据所述控制单元配置的子载波个数将n路电信号合并成m路电信号后输出。
  23. 一种高速光传输系统，其特征在于，包括：
    通过光纤链路连接的发射机和接收机；
    所述发射机用于，通过控制单元接收第一外部命令，并根据所述第一外部命令配置数据处理单元的调制格式，通过所述数据处理单元根据配置的调制格式对待传输信号进行调制处理；
    所述接收机用于，通过控制单元接收第二外部命令，并根据所述第二外部命令配置数据恢复单元的解调格式，通过所述数据恢复单元根据配置的解调格式对输入的信号进行解调处理。
  24. 根据权利要求23所述的系统，其特征在于，所述系统还包括：
    设置在所述光纤链路上的至少一个带宽可变的可重构光分插复用器，所述带宽可变的可重构光分插复用器用于，接收第三外部命令，根据所述第三外部命令配置以下至少一种参数：频谱宽度、信号速率和子载波个数。
PCT/CN2011/077691 2011-07-27 2011-07-27 一种高速光传输系统、设备及数据处理方法 Ceased WO2012106939A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180001192.2A CN102318240B (zh) 2011-07-27 2011-07-27 一种高速光传输系统、设备及数据处理方法
PCT/CN2011/077691 WO2012106939A1 (zh) 2011-07-27 2011-07-27 一种高速光传输系统、设备及数据处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/077691 WO2012106939A1 (zh) 2011-07-27 2011-07-27 一种高速光传输系统、设备及数据处理方法

Publications (1)

Publication Number Publication Date
WO2012106939A1 true WO2012106939A1 (zh) 2012-08-16

Family

ID=45429426

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/077691 Ceased WO2012106939A1 (zh) 2011-07-27 2011-07-27 一种高速光传输系统、设备及数据处理方法

Country Status (2)

Country Link
CN (1) CN102318240B (zh)
WO (1) WO2012106939A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025039525A1 (zh) * 2023-08-24 2025-02-27 中兴通讯股份有限公司 子载波连接的建立方法、装置、存储介质及电子装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106464990B (zh) * 2014-06-30 2019-11-12 华为技术有限公司 一种数据处理方法及装置
CN106533562B (zh) * 2016-11-30 2019-03-29 上海卫星工程研究所 空间多用户多制式卫星激光通信系统和方法
CN109600170B (zh) * 2017-09-30 2023-01-24 中兴通讯股份有限公司 光模块及信号处理方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1337820A (zh) * 2000-08-07 2002-02-27 三星电子株式会社 调制解调器和处理数据的方法
CN1875594A (zh) * 2003-09-04 2006-12-06 诺基亚有限公司 双模式多时隙egprs发射器
CN101421962A (zh) * 2006-02-08 2009-04-29 株式会社Ntt都科摩 移动台以及基站

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102026047A (zh) * 2009-09-10 2011-04-20 华为技术有限公司 复位信号和速率指示信号的传送方法、装置及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1337820A (zh) * 2000-08-07 2002-02-27 三星电子株式会社 调制解调器和处理数据的方法
CN1875594A (zh) * 2003-09-04 2006-12-06 诺基亚有限公司 双模式多时隙egprs发射器
CN101421962A (zh) * 2006-02-08 2009-04-29 株式会社Ntt都科摩 移动台以及基站

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025039525A1 (zh) * 2023-08-24 2025-02-27 中兴通讯股份有限公司 子载波连接的建立方法、装置、存储介质及电子装置

Also Published As

Publication number Publication date
CN102318240B (zh) 2015-04-29
CN102318240A (zh) 2012-01-11

Similar Documents

Publication Publication Date Title
AU673223B2 (en) An optical communications system for transmitting infomation signals having different wavelengths over a same optical fiber
WO2013028023A2 (en) Apparatus and method for scheduling using beam scanning in beamformed wireless communication system
US20100021166A1 (en) Spectrally Efficient Parallel Optical WDM Channels for Long-Haul MAN and WAN Optical Networks
WO2015012565A1 (en) Transmitting apparatus, receiving apparatus and signal processing method thereof
WO2015130077A1 (ko) 레이어드 디비전 멀티플렉싱을 이용한 신호 멀티플렉싱 장치 및 신호 멀티플렉싱 방법
WO2012106939A1 (zh) 一种高速光传输系统、设备及数据处理方法
WO2019139197A1 (ko) 다중 릴레이를 위한 무선전력 및 정보 동시전송 빔포밍 장치 및 방법
JP2011055088A (ja) 光伝送システム、光伝送装置及び波長分散補償方法
Nesset The progress of higher speed passive optical network standardisation in ITU-T
EP2873182B1 (en) Method and device for signal processing in an optical communication network
JP6017867B2 (ja) 光通信方法、光送信器、光受信器、信号分離回路、及び光通信システム
JP5993639B2 (ja) 低分散光ファイバーにおける非線形効果の抑制
JP4061325B2 (ja) 波長多重伝送システム
WO2015027458A1 (zh) 非接入层消息的处理方法、用户设备和网络侧设备
WO2018189782A1 (ja) 光伝送路切替装置及び光伝送システム、並びに伝送路切替方法
JP7343821B2 (ja) 光通信システム及び光信号処理方法
JP6693249B2 (ja) デジタル信号処理回路および複数のデジタル信号処理回路を含む信号処理装置
WO2018021788A1 (ko) 차량용 통신 장치 및 차량
US20120219292A1 (en) Optical switch for implementing wave division multiplexing networks
WO2015035601A1 (zh) 一种波道带宽切换的方法及网络设备
WO2015170819A1 (ko) 레이어드 디비전 멀티플렉싱을 이용한 신호 멀티플렉싱 장치 및 신호 멀티플렉싱 방법
WO2025183541A1 (ko) 다중 송신 안테나들과 계층 분할 다중화를 이용한 방송 신호 송신 장치 및 이를 이용한 방법
WO2025248788A1 (ja) 伝送システム及び光通信方法
Yamamoto et al. Compatibility between nonlinear compensation and crosstalk compensation using MIMO processing in super-high-density multi-carrier transmission system
JP3286094B2 (ja) 光波長多重ネットワークシステム

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180001192.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11857997

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11857997

Country of ref document: EP

Kind code of ref document: A1