WO2013177786A1 - 一种dsl激活的方法、设备、系统和程序产品 - Google Patents

一种dsl激活的方法、设备、系统和程序产品 Download PDF

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Publication number
WO2013177786A1
WO2013177786A1 PCT/CN2012/076364 CN2012076364W WO2013177786A1 WO 2013177786 A1 WO2013177786 A1 WO 2013177786A1 CN 2012076364 W CN2012076364 W CN 2012076364W WO 2013177786 A1 WO2013177786 A1 WO 2013177786A1
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Prior art keywords
synchronization frame
period
training
indication message
phase
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PCT/CN2012/076364
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English (en)
French (fr)
Inventor
石操
潘众
吕捷
陈仕才
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/076364 priority Critical patent/WO2013177786A1/zh
Priority to EP12844664.8A priority patent/EP2696596B1/en
Priority to ES12844664.8T priority patent/ES2558611T3/es
Priority to CN201280000520.1A priority patent/CN103636230B/zh
Priority to US13/909,770 priority patent/US8953664B2/en
Publication of WO2013177786A1 publication Critical patent/WO2013177786A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device, system, and program product for DSL activation. Background technique
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • the existing method of reducing the length of the orthogonal sequence carried in the sync frame can shorten the activation time of the user, but using this method brings noise problems, such as the inability to perform crosstalk noise or the inability to 4 ⁇ Eliminate Additive White Gaussion Noise (AWGN).
  • AWGN Eliminate Additive White Gaussion Noise
  • the embodiment of the invention provides a method, a device, a system and a program product for DSL activation, which can shorten the vectorization training time without causing noise problems, thereby achieving the effect of shortening the DSL activation time.
  • a method for DSL activation includes: the central office device sends a synchronization frame period indication message to the user equipment, where the synchronization frame period refers to The message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is less than a prescribed synchronization frame period threshold;
  • the central office device receives a response message sent by the user equipment in response to the synchronization frame period indication message, where the response message indicates whether the user equipment accepts the synchronization frame indicated by the synchronization frame period indication message Cycle
  • the central office device performs vectorization training by using a corresponding synchronization frame in a period of the synchronization frame.
  • a method for DSL activation includes: receiving, by a user equipment, a synchronization frame period indication message sent by a central office device, where the synchronization frame period indication message indicates a period of a synchronization frame, and The period of the synchronization frame indicated by the synchronization frame period indication message is less than a predetermined synchronization frame period threshold;
  • the user equipment determines whether to accept the period of the synchronization frame indicated by the synchronization frame period indication message; and sends a response message to the central office device in response to the synchronization frame period indication message sent by the central office device
  • the response message is used to indicate whether the user equipment accepts a period of the synchronization frame indicated by the synchronization frame period indication message;
  • the user equipment performs vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame.
  • a DSL central office device configured to send a synchronization frame period indication message to the user equipment, where the synchronization frame period indication message indicates a period of the synchronization frame And the period of the synchronization frame indicated by the synchronization frame period indication message is less than a specified synchronization frame period threshold;
  • a receiving unit configured to receive a response message sent by the user equipment in response to the synchronization frame period indication message sent by the sending unit, where the response message is used to indicate whether the user equipment accepts the synchronization frame period indication The period of the synchronization frame indicated by the message;
  • a training unit configured to perform vectorization training by using a synchronization frame corresponding to the period of the synchronization frame when the response message received by the receiving unit indicates that the user equipment accepts the period of the synchronization frame.
  • a DSL client device including a receiving unit, a processing unit and a sending unit, the processing unit comprising a determining unit and a training unit,
  • a receiving unit configured to receive a synchronization frame period indication message sent by the central office device, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame Periodic threshold
  • a determining unit configured to determine whether to accept a period of the synchronization frame indicated by the synchronization frame period indication message
  • a sending unit configured to send, to the central office device, a response message, where the response message is used to indicate whether the device accepts the synchronization frame period indication message, in response to the synchronization frame period indication message received by the receiving unit The period of the indicated sync frame;
  • a training unit configured to perform vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame when the determining unit determines to accept the period of the synchronization frame indicated by the synchronization frame period indication message.
  • a network system comprising the above-mentioned central office equipment and the above-mentioned customer equipment, which are connected by copper wires.
  • a computer program product comprising computer program code, when a computer unit executes the computer program code, the computer unit performs the above-described method of DSL activation action.
  • the DSL activation method, device, system, and computer program product provided by the embodiments of the present invention do not adjust the length of the orthogonal sequence carried in the synchronization frame, and thus do not bring noise problems.
  • a synchronization frame period indication message is sent to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a predetermined synchronization frame period threshold, such that
  • the vectorization training utilizes the corresponding synchronization frame in the period of the synchronization frame indicated by the synchronization frame period indication message, it is closely related to the period of the synchronization frame, and the synchronization frame period becomes smaller, correspondingly
  • the vectorization training time is also reduced, which shortens the time of vectorization training by changing the period of the synchronization frame, thereby shortening the time for user activation.
  • FIG. 1 is a flowchart of a method for DSL activation according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for DSL activation according to an embodiment of the present invention
  • FIG. 3 is a specific flowchart of a method for DSL activation according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of a DSL central office device according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of another DSL client device according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of a network system according to an embodiment of the present invention. detailed description
  • the DSL activation process can be divided into three phases: a handshake phase, a training phase, and a data phase.
  • Handshake phase Used for the CO (Central Office) device and the Customer Premises Equipment (CPE) to negotiate the modes supported by the two ends, for example, whether it is ADSL or VDSL2 mode.
  • CO Central Office
  • CPE Customer Premises Equipment
  • Training phase It is mainly used to calculate some characteristics of the training channel, such as calculating the crosstalk noise between each training channel, and interacting with the necessary information.
  • Data phase Used for interaction of business data. Channel training is also required at intervals in the data phase, but the interval between channel trainings will be longer.
  • the embodiment of the present invention provides a method for DSL activation, which may be performed by a central office device, and may be performed by other devices between the central office device and the CPE.
  • Figure 1 is an implementation of the present invention
  • a flow chart of a method of DSL activation is provided by way of example. Referring to FIG. 1, the method is described based on a central office device, and includes:
  • the central office device sends a synchronization frame period indication message to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame period valve. value.
  • the synchronization frame indication message may be any message that is available, as long as the synchronization frame period can be transmitted to the CPE, for example, by extending the existing protocol to realize the synchronization frame period transmission.
  • the central office device can send a synchronization frame period indication message to the CPE during the handshake phase, so that the vectorization training can be directly utilized in the subsequent training phase and data phase by using the period of the synchronization frame determined in the handshake phase.
  • the specified sync frame period threshold may be any threshold that conforms to the standard.
  • the period threshold of the sync frame is 256.
  • the period of the synchronization frame indicated by the synchronization frame period indication message may be any value less than 256, such as 128, 64, and the like.
  • the synchronization frame period indication message indicating the period of the synchronization frame may include: the synchronization frame period indication message indicating a period of at least one of the training phase and the data phase of the synchronization frame.
  • the synchronization frame period indication message may indicate a period of the synchronization frame in the training phase and the data phase, or the synchronization frame period indication message indicates only a period of the synchronization frame in the training phase, or the synchronization frame period indication The message only indicates the period of the sync frame in the data phase.
  • the CPE After the central office device sends a synchronization frame period indication message to the CPE, the CPE responds to the received synchronization frame period indication message.
  • the central office device receives a response message sent by the CPE in response to the synchronization frame period indication message, where the response message is used to indicate whether the CPE accepts the synchronization frame indicated by the synchronization frame period indication message. Cycle. That is, the response message is used to inform the central office device that the CPE accepts or does not accept the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the central office device performs vectorization training by using a corresponding synchronization frame in a period of the synchronization frame.
  • the central office device performs vectorization training by using the corresponding synchronization frame in the period of the synchronization frame, including: The central office equipment performs vectorization training by using the synchronization frame corresponding to the synchronization frame in the training phase during the training phase.
  • the central office device can perform vectorization training using a corresponding synchronization frame within a predetermined (existing) synchronization frame period threshold (eg, 256).
  • the synchronization frame period indication message indicates a period of the synchronization frame in the data phase
  • the response message indicates that the CPE accepts the period of the synchronization frame indicated by the synchronization frame period indication message in the data phase
  • the central office device utilizes Performing vectorization training on the corresponding synchronization frame in the period of the synchronization frame includes: the central office device performs vectorization training in the data phase by using the synchronization frame corresponding to the synchronization frame in the period of the data phase. In the previous training phase, the bureau end
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase and the data phase, respectively, and the response message indicating that the CPE accepts the period of the synchronization frame indicated by the synchronization frame period indication message may include:
  • the response message indicates that the CPE accepts the period of the synchronization frame indicated by the synchronization frame period indication message in the training phase and the data phase, and the response message indicates that the CPE only accepts the synchronization frame indicated by the synchronization frame period indication message During the period of the training phase, the response message indicates that the CPE only accepts the period of the synchronization frame indicated by the synchronization frame period indication message in the data phase.
  • the central office device When the response message indicates that the CPE accepts the synchronization frame indicated by the synchronization frame period indication message in the training phase and the data phase period, the central office device utilizes the corresponding period in the synchronization frame period. Synchronizing the frame, performing vectorization training includes: the central office device performs vectorization training on the synchronization frame in the training phase by using the synchronization frame in the training phase, and uses the synchronization frame in the data phase in the data phase. Vectorizing training for corresponding sync frames in the cycle; or
  • Performing vectorization training includes: the central office device performs vectorization training by using a synchronization frame corresponding to the synchronization frame in a training phase period in a training phase; or
  • the central office device utilizes the corresponding synchronization frame in the period of the synchronization frame.
  • Performing vectorization training includes: the central office device performs vectorization training in the data phase by using a synchronization frame corresponding to the synchronization frame in a period of the data phase.
  • the synchronization frame indicated by the synchronization frame period indication message may be the same or different in the training phase and the data phase, that is, the synchronization frame period specified in the training phase and the data phase is specified. It can be any value less than the specified sync frame period threshold.
  • the response message may instruct the CPE to accept a period of a synchronization frame indicated by the synchronization frame period indication message.
  • the response message may also indicate that the CPE does not accept the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the response message does not instruct the CPE to accept periodic quantization training of the synchronization frame indicated by the synchronization frame period indication message.
  • the method for DSL activation does not adjust the length of the orthogonal sequence carried in the synchronization frame, so that no noise problem is caused. Rather, the synchronization frame period indication message is sent to the CPE, the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame period threshold,
  • the vectorization training utilizes the period of the synchronization frame indicated by the synchronization frame period indication message. When the synchronization frame period becomes smaller, the corresponding vectorization training time also becomes smaller, thus shortening the vectorization by changing the period of the synchronization frame.
  • FIG. 2 is a flowchart of a method for DSL activation according to an embodiment of the present invention. Referring to FIG. 2, the method is described based on CPE, and includes:
  • the CPE receives a synchronization frame period indication message sent by the central office device, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame period valve. value.
  • the CPE determines whether to accept the period of the synchronization frame indicated by the synchronization frame period indication message, and sends a response message to the central office device in response to the synchronization frame period indication message sent by the central office device.
  • the response message is used to indicate whether the CPE accepts the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the CPE identifies the synchronization frame period indication message. If the CPE is unable to identify the synchronization frame period indication message, it indicates that the C P E does not accept the period of the synchronization frame indicated by the synchronization frame period indication message. In this case, the CPE does not perform any processing on the synchronization frame period indication message. If the CPE can identify the synchronization frame period indication message, the CPE indicates that the CPE accepts the synchronization frame period indication message. The period of the indicated synchronization frame, in this case, the CPE parses the synchronization frame period indication message to obtain the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the CPE If the CPE accepts the period of the synchronization frame indicated by the synchronization frame period indication message, the CPE performs vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame.
  • the period of the synchronization frame period indication message indicating the synchronization frame may include: the synchronization frame period indication message indicating a period of at least one of the training phase and the data phase of the synchronization frame.
  • the CPE in step 23 performs vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame, including: the CPE is training.
  • the stage performs vectorization training by using the corresponding synchronization frame of the received synchronization frame in the period of the training phase.
  • the CPE in step 23 performs vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame, including: the CPE is in the data.
  • the stage performs vectorization training on the corresponding synchronization frame in the period of the data phase by using the received synchronization frame.
  • the response message indicates that the CPE accepts the synchronization frame period indication message
  • the period of the indicated synchronization frame may include: the response message instructing the CPE to accept a period of the synchronization frame indicated by the synchronization frame period indication message in a training phase and a data phase, the response message indicating that the CPE only accepts the
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase, and the response message indicates that the CPE only accepts the period of the synchronization frame indicated by the synchronization frame period indication message in the data phase.
  • the CPE in step 23 uses the corresponding period of the synchronization frame to be accepted.
  • Synchronizing the frame, performing vectorization training includes: the CPE performing vectorization training in the training phase by using the received synchronization frame in a period of the training phase, and using the received synchronization frame in the data phase Vectorizing training for corresponding sync frames in the period of the phase; or
  • Performing vectorization training includes: the CPE performing vectorization training in the training phase by using the received synchronization frame in a period of the training phase; or
  • the CPE in step 23 uses the corresponding synchronization frame in the period of the received synchronization frame.
  • Performing vectorization training includes: the CPE performs vectorization training in the data phase by using the corresponding synchronization frame of the synchronization frame received in the data phase period.
  • the response message may instruct the CPE to accept a period of a synchronization frame indicated by the synchronization frame period indication message.
  • the response message may also indicate that the CPE does not accept the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the response message does not instruct the CPE to accept periodic quantization training of the synchronization frame indicated by the synchronization frame period indication message.
  • the method for DSL activation does not adjust the length of the orthogonal sequence carried in the synchronization frame, so that no noise problem is caused. Instead, send a synchronization frame week to the CPE a period indication message, the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a predetermined synchronization frame period threshold, and thus, due to the vectorization training center The period of the synchronization frame indicated by the synchronization frame period indication message is utilized. When the synchronization frame period becomes smaller, the corresponding vectorization training time also becomes smaller, so that the period of the vectorization training is shortened by changing the period of the synchronization frame.
  • FIG. 3 is a specific flowchart of a method for DSL activation according to an embodiment of the present invention.
  • the method for DSL activation provided by this embodiment includes:
  • the central office device sends a synchronization frame period indication message to the CPE (for example, a modem) in a handshake phase, where the synchronization frame period indication message indicates that the period of the synchronization frame in the training phase is cl, and indicates that the period of the synchronization frame in the data phase is C2.
  • cl is, for example, 128, and c2 is 32 for example.
  • the CPE receives the synchronization frame period indication message sent by the central office device, and sends a response message to the central office device in response to the synchronization frame period indication message, where the response message indicates that the CPE accepts the synchronization frame.
  • the period of the training phase is cl, indicating that the CPE does not accept the period of the synchronization frame in the data phase as c2.
  • the CPE performs vector quantization training in the training phase by using a corresponding synchronization frame in the synchronization frame period cl.
  • the central office device receives a response message sent by the CPE in response to the synchronization frame period indication message, and performs vectorization training in a training phase by using a corresponding synchronization frame in the synchronization frame period cl to obtain a training phase.
  • Corresponding crosstalk precoding matrix and crosstalk cancellation matrix are arranged in response to the synchronization frame period indication message, and performs vectorization training in a training phase by using a corresponding synchronization frame in the synchronization frame period cl to obtain a training phase.
  • the CPE performs vectorization training in the data phase by using a corresponding synchronization frame within a default synchronization frame period threshold (for example, 256).
  • a default synchronization frame period threshold for example, 256.
  • the central office equipment performs vectorization training in a data phase by using a corresponding synchronization frame in a default synchronization frame period (for example, 256) to obtain a corresponding crosstalk precoding matrix and string in a data phase. Disturbance cancellation matrix.
  • a default synchronization frame period for example, 256
  • the existing vectorized DSL technology can be used to eliminate crosstalk between different channels and finally complete the activation of the DSL.
  • the DSL activation method provided by the embodiment sends a synchronization frame period indication message to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified period.
  • the synchronization frame period threshold is such that, since the vectorization training utilizes the period of the synchronization frame indicated by the synchronization frame period indication message, when the synchronization frame period becomes smaller, the corresponding vectorization training time also becomes smaller. This shortens the time of vectorization training by changing the period of the synchronization frame, thereby shortening the time for user activation.
  • FIG. 4 is a structural block diagram of a DSL central office device according to an embodiment of the present invention.
  • the device 40 includes a transmitting unit 41, a receiving unit 42, and a training unit 43.
  • the sending unit 41 may be a transmitter or a transceiver;
  • the receiving unit 42 may be a receiver or a transceiver;
  • the training unit 43 may be a micro control unit MCU, a digital signal processor.
  • DSP microprocessor, field programmable logic array FPGA, ASIC or other similar device/module.
  • the sending unit 41 is configured to send a synchronization frame period indication message to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame period valve.
  • the receiving unit 42 is configured to receive a response message sent by the CPE in response to the synchronization frame period indication message sent by the sending unit 41, where the response message is used to indicate whether the CPE accepts the synchronization frame period indication message The period of the indicated sync frame;
  • the training unit 43 is configured to perform vectorization training by using a corresponding synchronization frame in the period of the synchronization frame when the response message received by the receiving unit 42 indicates that the CPE accepts the period of the synchronization frame.
  • the synchronization frame period indication message indicating the period of the synchronization frame includes: the synchronization frame period indication message indicating that the synchronization frame is in the week of at least one of the training phase and the data phase Period.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase
  • the training unit is used to: 43: use the synchronization frame to synchronize in the period of the training phase in the training phase.
  • Frame vectorized training.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the data phase
  • the training unit 43 is configured to: use the synchronization frame in the data phase to correspond to the period of the data phase Synchronize frames for vectorization training.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase and the data phase, respectively, and the response message indicates that the CPE accepts the synchronization frame period indication message
  • the period of the synchronization frame may include: the response message instructing the CPE to accept a period of the synchronization frame indicated by the synchronization frame period indication message in a training phase and a data phase, the response message indicating that the CPE only accepts the synchronization
  • the period of the synchronization frame indicated by the frame period indication message is in a period of the training phase, and the response message indicates that the CPE only accepts the period of the synchronization frame indicated by the synchronization frame period indication message in the data phase;
  • the training unit 43 is configured to: use the synchronization frame in the training phase to train Performing vectorization training on the corresponding synchronization frame in the period of the phase, and performing vectorization training on the corresponding synchronization frame in the data phase period by using the synchronization frame in the data phase; or
  • the training unit 43 is configured to: use the synchronization frame in the training phase during the training phase. Vectorizing training for corresponding sync frames in the cycle; or
  • the training unit 43 is configured to: utilize the synchronization frame in the data phase in the data phase
  • the corresponding synchronization frame in the cycle is subjected to vectorization training.
  • training unit 43 is further configured to:
  • the vector message is not instructed by the response message to indicate that the CPE accepts the synchronization frame period indication message.
  • the DSL device provided in this embodiment sends a synchronization frame period indication message to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified synchronization frame.
  • the period threshold is such that, since the vectorization training utilizes the period of the synchronization frame indicated by the synchronization frame period indication message, when the synchronization frame period becomes smaller, the corresponding vectorization training time also becomes smaller, so that Changing the period of the sync frame shortens the time for vectorization training, which in turn shortens the time for user activation.
  • FIG. 5 is a structural block diagram of a DSL client device according to an embodiment of the present invention.
  • the device 50 includes a receiving unit 51, a transmitting unit 52, and a processing unit 53.
  • the processing unit 53 includes a determining unit 531 and a training unit 532.
  • the sending unit 52 may be a transmitter or a transceiver or a user side interface of the CPE or other similar interface/module;
  • the receiving unit may be a receiver or a transceiver or a network side of the CPE.
  • processing unit 53 may be a micro control unit MCU, digital signal processor DSP, microprocessor, field programmable logic array FPGA, application specific integrated circuit ASIC or other similar device/module.
  • the receiving unit 51 is configured to receive a synchronization frame period indication message sent by the central office device, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is less than a specified synchronization.
  • Frame period threshold
  • a determining unit 531 configured to determine whether to accept a period of the synchronization frame indicated by the synchronization frame period indication message
  • the sending unit 52 is configured to send, to the central office device, a response message, where the response message is used to indicate whether the device 50 accepts the synchronization frame, in response to the synchronization frame period indication message received by the receiving unit 51.
  • the training unit 532 is configured to perform vectorization training by using the corresponding synchronization frame in the period of the received synchronization frame when the determining unit 531 determines to accept the period of the synchronization frame indicated by the synchronization frame period indication message.
  • the synchronization frame period indication message indicating the period of the synchronization frame includes: the synchronization frame period indication message indicating that the synchronization frame is in the week of at least one of the training phase and the data phase Period.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase
  • the training unit 532 is configured to: use the received synchronization frame in the training phase to correspond to the period of the training phase in the training phase. Synchronization frame for vectorization training.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the data phase
  • the training unit 532 is configured to: utilize the received synchronization frame in the data phase in the data phase period
  • the corresponding synchronization frame is subjected to vectorization training.
  • the synchronization frame period indication message indicates a period of the synchronization frame in the training phase and the data phase, respectively, and the determining unit 53 1 determines to accept the synchronization indicated by the synchronization frame period indication message.
  • the period of the frame includes: the determining unit 53 1 determines to accept the period of the synchronization frame indicated by the synchronization frame period indication message in the training phase and the data phase, and the determining unit 53 1 determines to accept only the synchronization frame period indication message.
  • the period of the indicated synchronization frame is in the period of the training phase, the determining unit 53 1 determines to accept only the period of the synchronization frame indicated by the synchronization frame period indication message in the data phase;
  • the training unit 532 is configured to: utilize the received synchronization frame in the training phase. Performing vectorization training on the corresponding synchronization frame in the period of the training phase, and performing vectorization training on the corresponding synchronization frame in the data phase period by using the received synchronization frame in the data phase; or
  • the training unit 532 is configured to: utilize the received synchronization frame in the training phase during the training phase. Vectorization training for the corresponding sync frame in the period; or
  • the training unit 532 is configured to: utilize the received synchronization frame in the data phase in the data phase
  • the corresponding synchronization frame in the period is vectorized and trained.
  • training unit 532 is further configured to:
  • the determination unit 53 1 does not determine to accept the training indicated by the synchronization frame period indication message.
  • the DSL-activated device provided by the embodiment sends a synchronization frame period indication message to the CPE, where the synchronization frame period indication message indicates a period of the synchronization frame, and the period of the synchronization frame indicated by the synchronization frame period indication message is smaller than a specified period.
  • the synchronization frame period threshold is such that, since the vectorization training utilizes the period of the synchronization frame indicated by the synchronization frame period indication message, when the synchronization frame period becomes smaller, the corresponding vectorization training time also becomes smaller. This shortens the time of vectorization training by changing the period of the synchronization frame, thereby shortening the time for user activation.
  • the DSL device provided by the embodiment of the present invention corresponds to the foregoing method for DSL activation
  • the DSL office and the client device provided by the embodiment of the present invention are used to perform the foregoing DSL activation method. Since the related content has been described in the method embodiment of the DSL activation, it will not be described here. For details, refer to the foregoing DSL activation method embodiment.
  • the embodiment of the present invention further provides a network system 60, where the network system includes the DSL office equipment 40 provided by the foregoing embodiment of the present invention and the DSL client provided by the foregoing embodiment of the present invention.
  • an embodiment of the present invention further provides a computer program product, where the computer program product includes computer program code, when a computer unit executes the computer program code, the computer unit performs the foregoing DSL activation method. Actions.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明实施例提供一种DSL激活的方法,涉及通信领域,能够缩短矢量化训练时间,进而达到缩短DSL激活时间的效果,所述方法包括:局端设备向用户端设备发送同步帧周期指示消息,所述同步帧周期指示消息所指示的同步帧的周期小于规定的同步帧周期阀值;所述局端设备接收所述用户端设备响应于所述同步帧周期指示消息而发送的应答消息,所述应答消息指示所述用户端设备是否接受所述同步帧周期指示消息所指示的同步帧的周期;如果所述应答消息指示所述用户端设备接受所述同步帧的周期,则所述局端设备利用所述同步帧的周期内对应的同步帧,进行矢量化训练。本发明实施例还提供相应的设备、系统及程序产品。

Description

一种 DSL激活的方法、 设备、 系统和程序产品 技术领域
本发明涉及通信领域, 尤其涉及一种 DSL激活的方法、 设备、 系统和 程序产品。 背景技术
DSL(Digital Subscriber Line, 数字用户线路)是一种在电话双绞线上传 输的高速数据传输技术。
用户在利用 DSL进行宽带接入时, 需要首先进行 DSL激活。 在 DSL 激活过程中, 为了消除不同用户的 DSL 线路间的串扰, 需进行矢量化 (; Vectoring)训练。在现有 VDSL2(Very-high-bit-rate Digital Subscriber line 2 , 第二代甚高速数字用户环路)标准 G.993.2中, 完成一次矢量化训练的时间 为 25.6秒, 而一次 DSL的激活时间要求是 40秒, 完成一次矢量化训练占 用了整个 DSL激活时间的 64%, 使得 DSL激活时间过长, 严重影响了用 户上线的速度, 进而使用户体验不佳。
现有釆用减小同步帧(sync frame)中承载的正交序列的长度的方法可 以缩短用户的激活时间, 但釆用此方法会带来噪声问题, 例如无法进行串 扰噪声 4氏消或无法 4艮好地消除加性高斯白噪声 (Additive White Gaussion Noise, AWGN)。 发明内容
本发明实施例提供一种 DSL激活的方法、 设备、 系统和程序产品, 能 够在不带来噪声问题的情况下, 缩短矢量化训练时间, 进而达到缩短 DSL 激活时间的效果。
为达到上述目的, 本发明的实施例釆用如下技术方案:
根据本发明的一方面, 提供一种 DSL激活的方法, 所述方法包括: 局端设备向用户端设备发送同步帧周期指示消息, 所述同步帧周期指 示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步帧的 周期小于规定的同步帧周期阀值;
所述局端设备接收所述用户端设备响应于所述同步帧周期指示消息 而发送的应答消息, 所述应答消息指示所述用户端设备是否接受所述同步 帧周期指示消息所指示的同步帧的周期;
如果所述应答消息指示所述用户端设备接受所述同步帧的周期, 则所 述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢量化训练。
根据本发明的另一方面, 提供一种 DSL激活的方法, 所述方法包括: 用户端设备接收局端设备发送的同步帧周期指示消息, 所述同步帧周 期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步 帧的周期小于规定的同步帧周期阀值;
所述用户端设备确定是否接受所述同步帧周期指示消息所指示的同 步帧的周期; 并响应于所述局端设备发送的所述同步帧周期指示消息, 向 所述局端设备发送应答消息, 所述应答消息用于指示所述用户端设备是否 接受所述同步帧周期指示消息所指示的同步帧的周期;
如果所述用户端设备接受所述同步帧周期指示消息所指示的同步帧 的周期, 所述用户端设备利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训练。
根据本发明的一方面, 提供一种 DSL局端设备, 所述局端设备包括: 发送单元, 用于向用户端设备发送同步帧周期指示消息, 所述同步帧 周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同 步帧的周期小于规定的同步帧周期阀值;
接收单元, 用于接收所述用户端设备响应于所述发送单元发送的同步 帧周期指示消息而发送的应答消息, 所述应答消息用于指示所述用户端设 备是否接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元, 用于在所述接收单元接收的应答消息指示所述用户端设备 接受所述同步帧的周期时, 利用在所述同步帧的周期内对应的同步帧, 进 行矢量化训练。
根据本发明的另一方面,提供一种 DSL用户端设备, 所述设备包括接 收单元、 处理单元和发送单元, 所述处理单元包括确定单元和训练单元, 其巾:
接收单元, 用于接收局端设备发送的同步帧周期指示消息, 所述同步 帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的 同步帧的周期小于规定的同步帧周期阀值;
确定单元, 用于确定是否接受所述同步帧周期指示消息所指示的同步 帧的周期;
发送单元, 用于响应于所述接收单元接收的所述同步帧周期指示消 息, 向所述局端设备发送应答消息, 所述应答消息用于指示所述设备是否 接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元, 用于在所述确定单元确定接受所述同步帧周期指示消息所 指示的同步帧的周期时, 利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训练。
根据本发明的另一方面, 提供一种网络系统, 所述网络系统包括上述 局端设备和上述用户端设备, 它们之间通过铜线相连。
根据本发明的另一方面, 提供一种计算机程序产品, 所述计算机程序 产品包括计算机程序代码, 当一个计算机单元执行所述计算机程序代码 时, 该计算机单元执行上述 DSL激活的方法中所记载的动作。
釆用上述技术方案后, 本发明实施例提供的 DSL激活的方法、 设备、 系统和计算机程序产品,没有对同步帧中承载的正交序列的长度进行调整, 因而不会带来噪声问题。 同时, 向 CPE发送同步帧周期指示消息, 所述同 步帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示 的同步帧的周期小于规定的同步帧周期阀值, 如此一来, 由于矢量化训练 所利用的是所述同步帧周期指示消息所指示的同步帧的周期内对应的同步 帧, 因此和该同步帧的周期有紧密关系, 在同步帧周期变小时, 相应的矢 量化训练时间也变小, 这样通过改变同步帧的周期缩短了矢量化训练的时 间, 进而缩短了用户激活的时间。 附图说明 实施例或现有技术描述中所需要使用的附图作简单地介绍, 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一种 DSL激活的方法的流程图;
图 2为本发明实施例提供的一种 DSL激活的方法的流程图;
图 3为本发明实施例提供的一种 DSL激活的方法的具体流程图; 图 4为本发明实施例提供的一种 DSL局端设备的结构框图;
图 5为本发明实施例提供的另一种 DSL用户端设备的结构框图; 图 6为本发明实施例提供的网络系统的结构框图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明的一部分实施例, 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 有做出创造性劳动的前提下所获得的所有其它实施例, 都属于本发明保护 的范围。
为更好地理解本发明实施例, 下面先对 DSL激活过程进行简要说明。 DSL激活过程可分为三个阶段: 握手阶段、 训练阶段和数据阶段。
握手阶段:用于局端(CO, Central Office)设备和用户端设备 (Customer Premises Equipment, CPE)协商两端支持的模式等, 例如确定是 ADSL还是 VDSL2模式。
训练阶段: 主要用于计算训练信道的一些特性, 例如计算各个训练信 道之间的串扰噪声, 并且交互双方必要的信息。
数据阶段: 用于进行业务数据的交互, 在数据阶段也要间隔的进行信 道训练, 但是信道训练的间隔时间会比较长。
本发明实施例提供一种 DSL 激活的方法, 所述方法可由局端设备执 行, 当然也可由局端设备与 CPE之间的其他设备执行。 图 1是本发明实施 例提供的一种 DSL激活的方法的流程图。 参照图 1 , 所述方法基于局端设 备而描述, 包括:
1 1、局端设备向 CPE发送同步帧周期指示消息, 所述同步帧周期指示 消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步帧的周 期小于规定的同步帧周期阀值。
在本发明实施例中, 所述同步帧指示消息可以为可用的任何消息, 只 要能将同步帧周期传送给 CPE即可, 例如通过扩展现有协议实现同步帧周 期的发送。 局端设备可在握手阶段向 CPE发送同步帧周期指示消息, 以便 于在后续的训练阶段和数据阶段可直接利用在该握手阶段确定的同步帧的 周期进行矢量化训练。
所述规定的同步帧周期阀值可以为符合标准的任何阀值, 例如在 G.993.2标准中, 同步帧的周期阀值是 256。 所述同步帧周期指示消息所指 示的同步帧的周期可以为小于 256的任何值, 例如 128、 64等。
所述同步帧周期指示消息指示同步帧的周期可包括: 所述同步帧周期 指示消息指示同步帧在训练阶段和数据阶段中的至少一个阶段的周期。 具 体地, 所述同步帧周期指示消息可指示同步帧在训练阶段和数据阶段中的 周期、 或者所述同步帧周期指示消息仅指示同步帧在训练阶段中的周期、 或者所述同步帧周期指示消息仅指示同步帧在数据阶段中的周期。
在局端设备向 CPE发送同步帧周期指示消息后, 所述 CPE对接收到 的同步帧周期指示消息进行回应。
12、所述局端设备接收所述 CPE响应于所述同步帧周期指示消息而发 送的应答消息, 所述应答消息用于指示所述 CPE是否接受所述同步帧周期 指示消息所指示的同步帧的周期。 即, 所述应答消息用于告知所述局端设 备所述 CPE 接受或不接受所述同步帧周期指示消息所指示的同步帧的周 期。
13、 如果所述应答消息指示所述 CPE接受所述同步帧的周期时, 则所 述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢量化训练。
具体地, 可分为如下几种情况:
①所述同步帧周期指示消息仅指示同步帧在训练阶段的周期, 所述应 答消息接受所述同步帧周期指示消息所指示的同步帧在训练阶段的周期, 步骤 13中所述局端设备利用所述同步帧的周期内对应的同步帧,进行矢量 化训练包括: 所述局端设备在训练阶段利用所述同步帧在训练阶段的周期 内对应的同步帧, 进行矢量化训练。 而在后续的数据阶段, 所述局端设备 可利用规定的(现有的)同步帧周期阀值(如 256 )内对应的同步帧进行矢量 化训练。
②所述同步帧周期指示消息指示同步帧在数据阶段的周期, 所述应答 消息指示所述 CPE接受所述同步帧周期指示消息所指示的同步帧在数据阶 段的周期, 所述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢 量化训练包括: 所述局端设备在数据阶段利用所述同步帧在数据阶段的周 期内对应的同步帧, 进行矢量化训练。 而在之前的训练阶段, 所述局端设
③所述同步帧周期指示消息指示同步帧分别在训练阶段和数据阶段 中的周期, 所述应答消息指示所述 CPE接受所述同步帧周期指示消息所指 示的同步帧的周期可包括: 所述应答消息指示所述 CPE接受所述同步帧周 期指示消息所指示的同步帧在训练阶段和数据阶段的周期、 所述应答消息 指示所述 CPE仅接受所述同步帧周期指示消息所指示的同步帧在训练阶段 的周期、所述应答消息指示所述 CPE仅接受所述同步帧周期指示消息所指 示的同步帧在数据阶段的周期。 具体为:
③ - 1 在所述应答消息指示所述 CPE接受所述同步帧周期指示消息所 指示的同步帧在训练阶段和数据阶段的周期时, 所述局端设备利用所述同 步帧的周期内对应的同步帧, 进行矢量化训练包括: 所述局端设备在训练 阶段利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练, 以及在数据阶段利用所述同步帧在数据阶段的周期内对应的同步帧进行矢 量化训练; 或
③ -2在所述应答消息指示所述 CPE仅接受所述同步帧周期指示消息 所指示的同步帧在训练阶段的周期时, 所述局端设备利用所述同步帧的周 期内对应的同步帧, 进行矢量化训练包括: 所述局端设备在训练阶段利用 所述同步帧在训练阶段的周期内对应的同步帧, 进行矢量化训练; 或 ③ -3 在所述应答消息指示所述 CPE仅接受所述同步帧周期指示消息 所指示的同步帧在数据阶段的周期时, 所述局端设备利用所述同步帧的周 期内对应的同步帧, 进行矢量化训练包括: 所述局端设备在数据阶段利用 所述同步帧在数据阶段的周期内对应的同步帧, 进行矢量化训练。
需要指出的是, 在本发明实施例中, 所述同步帧周期指示消息指示的 同步帧在训练阶段和数据阶段的周期可以相同或不相同, 即指定在训练阶 段和数据阶段的同步帧周期均可以为小于规定的同步帧周期阀值的任意 值。
在本发明实施例中,所述应答消息可指示所述 CPE接受所述同步帧周 期指示消息所指示的同步帧的周期。当然,所述应答消息还可指示所述 CPE 不接受所述同步帧周期指示消息所指示的同步帧的周期。 当所述应答消息 没有指示所述 CPE 接受所述同步帧周期指示消息所指示的同步帧的周期 量化训练。
本发明实施例提供的 DSL激活的方法,没有对同步帧中承载的正交序 列的长度进行调整, 因而不会带来噪声问题。 而是, 向 CPE发送同步帧周 期指示消息, 所述同步帧周期指示消息指示同步帧的周期, 且所述同步帧 周期指示消息所指示的同步帧的周期小于规定的同步帧周期阀值, 由于矢 量化训练所利用的是所述同步帧周期指示消息所指示的同步帧的周期, 在 同步帧周期变小时, 相应的矢量化训练时间也变小, 这样通过改变同步帧 的周期缩短了矢量化训练的时间, 进而缩短了用户激活的时间。 相应地,本发明实施例提供一种 DSL激活的方法, 所述方法可由 CPE 执行, 所述 CPE举例而言可以是调制解调器或者其他类似装置。 图 2是本 发明实施例提供的一种 DSL激活的方法的流程图。 参照图 2 , 所述方法基 于 CPE而描述, 包括:
21、 CPE接收局端设备发送的同步帧周期指示消息, 所述同步帧周期 指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步帧 的周期小于规定的同步帧周期阀值。 22、所述 CPE确定是否接受所述同步帧周期指示消息所指示的同步帧 的周期; 并响应于所述局端设备发送的所述同步帧周期指示消息, 向所述 局端设备发送应答消息, 所述应答消息用于指示 CPE是否接受所述同步帧 周期指示消息所指示的同步帧的周期。
具体地, 所述 CPE在接收到同步帧周期指示消息后, 对此同步帧周期 指示消息进行识别。 若所述 CPE不能够识别此同步帧周期指示消息, 则表 明所述 C P E不接受所述同步帧周期指示消息所指示的同步帧的周期。在此 情况下, 所述 CPE不对此同步帧周期指示消息进行任何处理, 在矢量化训 若所述 CPE能够识别此同步帧周期指示消息, 则表明所述 CPE接受所述 同步帧周期指示消息所指示的同步帧的周期, 在此情况下, 所述 CPE对此 同步帧周期指示消息进行解析, 以获取所述同步帧周期指示消息所指示的 同步帧的周期。
23、如果所述 CPE接受所述同步帧周期指示消息所指示的同步帧的周 期时, 所述 CPE利用接受的所述同步帧的周期内对应的同步帧, 进行矢量 化训练。
其中, 所述同步帧周期指示消息指示同步帧的周期可包括: 所述同步 帧周期指示消息指示同步帧在训练阶段和数据阶段中的至少一个阶段的周 期。
在所述同步帧周期指示消息指示同步帧在训练阶段的周期时,步骤 23 中所述 CPE利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训 练包括: 所述 CPE在训练阶段利用接受的所述同步帧在训练阶段的周期内 对应的同步帧, 进行矢量化训练。
在所述同步帧周期指示消息指示同步帧在数据阶段的周期时,步骤 23 中所述 CPE利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训 练包括: 所述 CPE在数据阶段利用接受的所述同步帧在数据阶段的周期内 对应的同步帧进行矢量化训练。
在所述同步帧周期指示消息指示同步帧分别在训练阶段和数据阶段 中的周期时, 所述应答消息指示所述 CPE接受所述同步帧周期指示消息所 指示的同步帧的周期可包括: 所述应答消息指示所述 CPE接受所述同步帧 周期指示消息所指示的同步帧在训练阶段和数据阶段的周期、 所述应答消 息指示所述 CPE仅接受所述同步帧周期指示消息所指示的同步帧在训练阶 段的周期、所述应答消息指示所述 CPE仅接受所述同步帧周期指示消息所 指示的同步帧在数据阶段的周期。
在所述应答消息指示所述 CPE 接受所述同步帧周期指示消息所指示 的同步帧在训练阶段和数据阶段的周期时, 步骤 23 中所述 CPE利用接受 的所述同步帧的周期内对应的同步帧, 进行矢量化训练包括: 所述 CPE在 训练阶段利用接受的所述同步帧在训练阶段的周期内对应的同步帧进行矢 量化训练, 并且在数据阶段利用接受的所述同步帧在数据阶段的周期内对 应的同步帧进行矢量化训练; 或
在所述应答消息指示所述 CPE 仅接受所述同步帧周期指示消息所指 示的同步帧在训练阶段的周期时, 步骤 23 中所述 CPE利用接受的所述同 步帧的周期内对应的同步帧, 进行矢量化训练包括: 所述 CPE在训练阶段 利用接受的所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训 练; 或
在所述应答消息指示所述 CPE 仅接受所述同步帧周期指示消息所指 示的同步帧在数据阶段的周期时, 步骤 23 中所述 CPE利用接受的所述同 步帧的周期内对应的同步帧, 进行矢量化训练包括: 所述 CPE在数据阶段 利用接受的所述同步帧在数据阶段的周期内对应的同步帧, 进行矢量化训 练。
在本发明实施例中,所述应答消息可指示所述 CPE接受所述同步帧周 期指示消息所指示的同步帧的周期。当然,所述应答消息还可指示所述 CPE 不接受所述同步帧周期指示消息所指示的同步帧的周期。 当所述应答消息 没有指示所述 CPE 接受所述同步帧周期指示消息所指示的同步帧的周期 量化训练。
本发明实施例提供的 DSL激活的方法,没有对同步帧中承载的正交序 列的长度进行调整, 因而不会带来噪声问题。 而是, 向 CPE发送同步帧周 期指示消息, 所述同步帧周期指示消息指示同步帧的周期, 且所述同步帧 周期指示消息所指示的同步帧的周期小于规定的同步帧周期阀值, 如此一 来, 由于矢量化训练所利用的是所述同步帧周期指示消息所指示的同步帧 的周期, 在同步帧周期变小时, 相应的矢量化训练时间也变小, 这样通过 改变同步帧的周期缩短了矢量化训练的时间,进而缩短了用户激活的时间。 为更好的理解本发明, 下面以具体实施例为例来对本发明进行进一步 说明。 亦须注意, 以下所列举的实施例只是本发明的一部分实施例, 本领 域技术人员由本发明所述内容, 可易于想到其他实施例, 它们都在本发明 的范围内。
图 3是本发明实施例提供的 DSL激活的方法的具体流程图。参照图 3 , 本实施例提供的 DSL激活的方法包括:
31、 局端设备在握手阶段向 CPE (例如, 调制解调器)发送同步帧周期 指示消息, 所述同步帧周期指示消息指示同步帧在训练阶段的周期为 cl, 同时指示同步帧在数据阶段的周期为 c2。 其中, cl举例而言为 128 , c2举 例而言为 32。
32、 CPE接收所述局端设备发送的同步帧周期指示消息, 并响应于所 述同步帧周期指示消息, 向所述局端设备发送应答消息, 所述应答消息指 示所述 CPE接受同步帧在训练阶段的周期为 cl , 同时指示所述 CPE不接 受同步帧在数据阶段的周期为 c2。
33、 所述 CPE在训练阶段利用同步帧周期 cl 内对应的同步帧进行矢 量化训练。
34、所述局端设备接收所述 CPE响应于所述同步帧周期指示消息而发 送的应答消息,在训练阶段利用同步帧周期 cl 内对应的同步帧进行矢量化 训练, 以得到在训练阶段的相应串扰预编码矩阵和串扰抵消矩阵。
35、 所述 CPE 在数据阶段利用默认的同步帧周期阀值(例如, 256)内 对应的同步帧进行矢量化训练。
36、 所述局端设备在数据阶段利用默认的同步帧周期(例如, 256)内对 应的同步帧进行矢量化训练以得到在数据阶段的相应串扰预编码矩阵和串 扰抵消矩阵。
在后续过程中,即可使用现有的矢量化 DSL技术消除不同信道之间的 串扰, 并最终完成 DSL的激活。
本实施例提供的 DSL激活的方法, 向 CPE发送同步帧周期指示消息, 所述同步帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息 所指示的同步帧的周期小于规定的同步帧周期阀值, 如此一来, 由于矢量 化训练所利用的是所述同步帧周期指示消息所指示的同步帧的周期, 在同 步帧周期变小时, 相应的矢量化训练时间也变小, 这样通过改变同步帧的 周期缩短了矢量化训练的时间, 进而缩短了用户激活的时间。
相应地, 本发明实施例还提供一种 DSL局端设备 40。 图 4为本发明 实施例提供的一种 DSL局端设备的结构框图。 参照图 4 , 所述设备 40 包 括发送单元 41、 接收单元 42和训练单元 43。 其中, 发送单元 41可以是一 个发射器(transmitter)或收发器(transceiver); 接收单元 42可以是一个接收 器 (receiver)或收发器; 训练单元 43可以是一个微控制单元 MCU, 数字信 号处理器 DSP , 微处理器(microprocessor), 现场可编程逻辑阵列 FPGA, 专用集成电路 ASIC或其他类似设备 /模块。
发送单元 41 , 用于向 CPE发送同步帧周期指示消息, 所述同步帧周 期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步 帧的周期小于规定的同步帧周期阀值;
接收单元 42 , 用于接收所述 CPE响应于所述发送单元 41发送的同步 帧周期指示消息而发送的应答消息, 所述应答消息用于指示所述 CPE是否 接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元 43 , 用于在所述接收单元 42接收的应答消息指示所述 CPE 接受所述同步帧的周期时, 利用所述同步帧的周期内对应的同步帧, 进行 矢量化训练。
其中, 所述同步帧周期指示消息指示同步帧的周期包括: 所述同步帧 周期指示消息指示同步帧在训练阶段和数据阶段中的至少一个阶段的周 期。
在本发明的一个实施例中, 所述同步帧周期指示消息指示同步帧在训 练阶段的周期, 所述训练单元用于 43 : 在训练阶段利用所述同步帧在训练 阶段的周期内对应的同步帧, 进行矢量化训练。
在本发明的另一个实施例中, 所述同步帧周期指示消息指示同步帧在 数据阶段的周期, 所述训练单元 43用于: 在数据阶段利用所述同步帧在数 据阶段的周期内对应的同步帧, 进行矢量化训练。
在本发明的另一个实施例中, 所述同步帧周期指示消息指示同步帧分 别在训练阶段和数据阶段中的周期, 所述应答消息指示所述 CPE接受所述 同步帧周期指示消息所指示的同步帧的周期可包括: 所述应答消息指示所 述 CPE接受所述同步帧周期指示消息所指示的同步帧在训练阶段和数据阶 段的周期、所述应答消息指示所述 CPE仅接受所述同步帧周期指示消息所 指示的同步帧在训练阶段的周期、所述应答消息指示所述 CPE仅接受所述 同步帧周期指示消息所指示的同步帧在数据阶段的周期;
在所述应答消息指示所述 CPE 接受所述同步帧周期指示消息所指示 的同步帧在训练阶段和数据阶段的周期时, 所述训练单元 43用于: 在训练 阶段利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练, 在数据阶段利用所述同步帧在数据阶段的周期内对应的同步帧进行矢量化 训练; 或
在所述应答消息指示所述 CPE 仅接受所述同步帧周期指示消息所指 示的同步帧在训练阶段的周期时, 所述训练单元 43用于: 在训练阶段利用 所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练; 或
在所述应答消息指示所述 CPE 仅接受所述同步帧周期指示消息所指 示的同步帧在数据阶段的周期时, 所述训练单元 43用于: 在数据阶段利用 所述同步帧在数据阶段的周期内对应的同步帧, 进行矢量化训练。
进一步地, 所述训练单元 43还用于:
在所述应答消息没有指示所述 CPE 接受所述同步帧周期指示消息所 矢量化训练。 本实施例提供的 DSL设备, 向 CPE发送同步帧周期指示消息, 所述 同步帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指 示的同步帧的周期小于规定的同步帧周期阀值, 如此一来, 由于矢量化训 练所利用的是所述同步帧周期指示消息所指示的同步帧的周期, 在同步帧 周期变小时, 相应的矢量化训练时间也变小, 这样通过改变同步帧的周期 缩短了矢量化训练的时间, 进而缩短了用户激活的时间。 相应地, 本发明实施例还提供一种 DSL用户端设备 50 , 例如调制解 调器。 图 5为本发明实施例提供的一种 DSL用户端设备的结构框图。 参照 图 5 , 所述设备 50包括接收单元 51、 发送单元 52和处理单元 53。 所述处 理单元 53 包括确定单元 531和训练单元 532。 其中, 发送单元 52可以是 一个发射器(transmitter)或收发器(transceiver)或 CPE 的用户侧接口或其他 类似接口 /模块; 接收单元可以是一个接收器 (receiver)或收发器或 CPE 的 网络侧接口或其他类似接口 /模块; 处理单元 53 可以是一个微控制单元 MCU, 数字信号处理器 DSP , 微处理器(microprocessor) , 现场可编程逻辑 阵列 FPGA, 专用集成电路 ASIC或其他类似设备 /模块。
接收单元 51 , 用于接收局端设备发送的同步帧周期指示消息, 所述同 步帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示 的同步帧的周期小于规定的同步帧周期阀值;
确定单元 531 , 用于确定是否接受所述同步帧周期指示消息所指示的 同步帧的周期;
发送单元 52 , 用于响应于所述接收单元 51接收的所述同步帧周期指 示消息, 向所述局端设备发送应答消息, 所述应答消息用于指示所述设备 50是否接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元 532 , 用于在所述确定单元 531确定接受所述同步帧周期指 示消息所指示的同步帧的周期时, 利用接受的所述同步帧的周期内对应的 同步帧, 进行矢量化训练。
其中, 所述同步帧周期指示消息指示同步帧的周期包括: 所述同步帧 周期指示消息指示同步帧在训练阶段和数据阶段中的至少一个阶段的周 期。
在本发明的一个实施例中, 所述同步帧周期指示消息指示同步帧在训 练阶段的周期, 所述训练单元 532用于: 在训练阶段利用接受的所述同步 帧在训练阶段的周期内对应的同步帧, 进行矢量化训练。
在本发明的另一个实施例中, 所述同步帧周期指示消息指示同步帧在 数据阶段的周期, 所述训练单元 532用于: 在数据阶段利用接受的所述同 步帧在数据阶段的周期内对应的同步帧, 进行矢量化训练。
在本发明的另一个实施例中, 所述同步帧周期指示消息指示同步帧分 别在训练阶段和数据阶段中的周期, 所述确定单元 53 1确定接受所述同步 帧周期指示消息所指示的同步帧的周期包括: 所述确定单元 53 1确定接受 所述同步帧周期指示消息所指示的同步帧在训练阶段和数据阶段的周期、 所述确定单元 53 1确定仅接受所述同步帧周期指示消息所指示的同步帧在 训练阶段的周期、 所述确定单元 53 1确定仅接受所述同步帧周期指示消息 所指示的同步帧在数据阶段的周期;
在所述确定单元 53 1确定接受所述同步帧周期指示消息所指示的同步 帧在训练阶段和数据阶段的周期时, 所述训练单元 532用于: 在训练阶段 利用接受的所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训 练, 在数据阶段利用接受的所述同步帧在数据阶段的周期内对应的同步帧 进行矢量化训练; 或
在所述确定单元 53 1确定仅接受所述同步帧周期指示消息所指示的同 步帧在训练阶段的周期时, 所述训练单元 532用于: 在训练阶段利用接受 的所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练; 或
在所述确定单元 53 1确定仅接受所述同步帧周期指示消息所指示的同 步帧在数据阶段的周期时, 所述训练单元 532用于: 在数据阶段利用接受 的所述同步帧在数据阶段的周期内对应的同步帧进行矢量化训练。
进一步地, 所述训练单元 532还用于:
在所述确定单元 53 1没有确定接受所述同步帧周期指示消息所指示的 训练。 本实施例提供的 DSL激活的设备, 向 CPE发送同步帧周期指示消息, 所述同步帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息 所指示的同步帧的周期小于规定的同步帧周期阀值, 如此一来, 由于矢量 化训练所利用的是所述同步帧周期指示消息所指示的同步帧的周期, 在同 步帧周期变小时, 相应的矢量化训练时间也变小, 这样通过改变同步帧的 周期缩短了矢量化训练的时间, 进而缩短了用户激活的时间。
指出的是, 本发明实施例提供的 DSL设备与前述 DSL激活的方法相 对应, 本发明实施例提供的 DSL局端和用户端设备用于执行前述的 DSL 激活方法。由于在 DSL激活的方法实施例中已对相关内容进行了说明, 故 在此不再赘述, 具体内容可参照前述 DSL激活的方法实施例。
另外, 值得注意的是, 上述 DSL局端设备和 DSL用户端设备实施例 中, 所包括的各个单元只是按照功能逻辑进行划分的, 但并不局限于上述 的划分, 只要能够实现相应的功能即可; 另外, 各功能单元的具体名称也 只是为了便于相互区分, 并不用于限制本发明的保护范围。 此外, 如图 6所示, 本发明实施例还提供一种网络系统 60, 所述网 络系统包括前述本发明实施例所提供的 DSL局端设备 40和前述本发明实 施例所提供的 DSL用户端设备 50, DSL局端设备 40和 DSL用户端设备 50通过铜线相连, 该 DSL网络的结构组成及连接与现有技术相同。 由于 前文已经对 DSL局端设备 40和 DSL用户端设备 50进行了详细说明,在 此不再赘述。 另外, 本发明实施例还提供一种计算机程序产品, 所述计算机程序 产品包括计算机程序代码, 当一个计算机单元执行所述计算机程序代码 时, 该计算机单元执行前述 DSL激活方法各个实施例中所记载的动作。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分 步骤是可以通过程序来指令相关的硬件完成, 所述的程序可以存储于一种 计算机可读存储介质中, 所述存储介质可以是只读存储器、磁盘或光盘等。
以上所述, 仅为本发明的具体实施方式, 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 的保护范围应以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种数字用户线路激活的方法, 其特征在于, 所述方法包括: 局端设备向用户端设备发送同步帧周期指示消息, 所述同步帧周期指 示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步帧的 周期小于规定的同步帧周期阀值;
所述局端设备接收所述用户端设备响应于所述同步帧周期指示消息 而发送的应答消息, 所述应答消息指示所述用户端设备是否接受所述同步 帧周期指示消息所指示的同步帧的周期;
如果所述应答消息指示所述用户端设备接受所述同步帧的周期, 则所 述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢量化训练。
2、 如权利要求 1 所述的方法, 其特征在于, 所述同步帧周期指示消 息指示同步帧的周期包括: 所述同步帧周期指示消息指示同步帧在训练阶 段和数据阶段中的至少一个阶段的周期。
3、 如权利要求 1 或 2所述的方法, 其特征在于, 所述同步帧周期指 示消息指示同步帧在训练阶段的周期,
所述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢量化训 练包括: 所述局端设备在训练阶段利用所述同步帧在训练阶段的周期内对 应的同步帧, 进行矢量化训练。
4、 如权利要求 1 或 2所述的方法, 其特征在于, 所述同步帧周期指 示消息指示同步帧在数据阶段的周期,
所述局端设备利用所述同步帧的周期内对应的同步帧, 进行矢量化训 练包括: 所述局端设备在数据阶段利用所述同步帧在数据阶段的周期内对 应的同步帧, 进行矢量化训练。
5、 如权利要求 1 或 2所述的方法, 其特征在于, 所述同步帧周期指 示消息指示同步帧分别在训练阶段和数据阶段中的周期, 所述应答消息指 示所述用户端设备接受所述同步帧周期指示消息所指示的同步帧的周期包 括:
所述应答消息指示所述用户端设备接受所述同步帧周期指示消息所 指示的同步帧在训练阶段和数据阶段的周期、 所述应答消息指示所述用户 端设备仅接受所述同步帧周期指示消息所指示的同步帧在训练阶段的周 期、 所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消息所 指示的同步帧在数据阶段的周期;
在所述应答消息指示所述用户端设备接受所述同步帧周期指示消息 所指示的同步帧在训练阶段和数据阶段的周期时, 所述局端设备利用所述 同步帧的周期内对应的同步帧, 进行矢量化训练包括: 所述局端设备在训 练阶段利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训 练, 在数据阶段利用所述同步帧在数据阶段的周期内对应的同步帧进行矢 量化训练; 或
在所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消 息所指示的同步帧在训练阶段的周期时, 所述局端设备利用所述同步帧的 周期内对应的同步帧, 进行矢量化训练包括: 所述用户端设备在训练阶段 利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练; 或 在所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消 息所指示的同步帧在数据阶段的周期时, 所述局端设备利用所述同步帧的 周期内对应的同步帧, 进行矢量化训练包括: 所述局端设备在数据阶段利 用所述同步帧在数据阶段的周期进行矢量化训练。
6、 如前面任一项权利要求所述的方法, 其特征在于, 所述方法还包 括:
在所述应答消息没有指示所述用户端设备接受所述同步帧周期指示 消息所指示的同步帧的周期时, 所述局端设备利用规定的同步帧周期阀值 内对应的同步帧进行矢量化训练。
7、 一种数字用户线路激活的方法, 其特征在于, 所述方法包括: 用户端设备接收局端设备发送的同步帧周期指示消息, 所述同步帧周 期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同步 帧的周期小于规定的同步帧周期阀值;
所述用户端设备确定是否接受所述同步帧周期指示消息所指示的同, 步帧的周期; 并响应于所述局端设备发送的所述同步帧周期指示消息, 向 所述局端设备发送应答消息, 所述应答消息用于指示所述用户端设备是否 接受所述同步帧周期指示消息所指示的同步帧的周期;
如果所述用户端设备接受所述同步帧周期指示消息所指示的同步帧 的周期, 所述用户端设备利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训练。
8、 一种数字用户线路局端设备, 其特征在于, 所述设备包括: 发送单元, 用于向用户端设备发送同步帧周期指示消息, 所述同步帧 周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的同 步帧的周期小于规定的同步帧周期阀值;
接收单元, 用于接收所述用户端设备响应于所述发送单元发送的同步 帧周期指示消息而发送的应答消息, 所述应答消息用于指示所述用户端设 备是否接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元, 用于在所述接收单元接收的应答消息指示所述用户端设备 接受所述同步帧的周期时, 利用所述同步帧的周期内对应的同步帧, 进行 矢量化训练。
9、 如权利要求 8 所述的设备, 其特征在于, 所述同步帧周期指示消 息指示同步帧的周期包括: 所述同步帧周期指示消息指示同步帧在训练阶 段和数据阶段中的至少一个阶段的周期。
10、 如权利要求 8或 9所述的设备, 其特征在于, 所述同步帧周期指 示消息指示同步帧在训练阶段的周期,
所述训练单元用于: 在训练阶段利用所述同步帧在训练阶段的周期内 对应的同步帧, 进行矢量化训练。
1 1、 如权利要求 8或 9所述的设备, 其特征在于, 所述同步帧周期指 示消息指示同步帧在数据阶段的周期,
所述训练单元用于: 在数据阶段利用所述同步帧在数据阶段的周期内 对应的同步帧, 进行矢量化训练。
12、 如权利要求 8或 9所述的设备, 其特征在于, 所述同步帧周期指 示消息指示同步帧分别在训练阶段和数据阶段中的周期, 所述应答消息指 示所述用户端设备接受所述同步帧周期指示消息所指示的同步帧的周期包 括:
所述应答消息指示所述用户端设备接受所述同步帧周期指示消息所 指示的同步帧在训练阶段和数据阶段的周期、 所述应答消息指示所述用户 端设备仅接受所述同步帧周期指示消息所指示的同步帧在训练阶段的周 期、 所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消息所 指示的同步帧在数据阶段的周期;
在所述应答消息指示所述用户端设备接受所述同步帧周期指示消息 所指示的同步帧在训练阶段和数据阶段的周期时, 所述训练单元用于: 在 训练阶段利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训 练, 在数据阶段利用所述同步帧在数据阶段的周期内对应的同步帧进行矢 量化训练; 或
在所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消 息所指示的同步帧在训练阶段的周期时, 所述训练单元用于: 在训练阶段 利用所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练; 或 在所述应答消息指示所述用户端设备仅接受所述同步帧周期指示消 息所指示的同步帧在数据阶段的周期时, 所述训练单元用于: 在数据阶段 利用所述同步帧在数据阶段的周期内对应的同步帧进行矢量化训练。
13、 如权利要求 8-12任意一项所述的设备, 其特征在于, 所述训练单 元还用于:
在所述应答消息没有指示所述用户端设备接受所述同步帧周期指示 消息所指示的同步帧的周期时, 利用规定的同步帧周期阀值内对应的同步 帧进行矢量化训练。
14、 一种数字用户线路用户端设备, 其特征在于, 所述设备包括接收 单元、 处理单元和发送单元, 所述处理单元包括确定单元和训练单元, 其 中:
接收单元, 用于接收局端设备发送的同步帧周期指示消息, 所述同步 帧周期指示消息指示同步帧的周期, 且所述同步帧周期指示消息所指示的 同步帧的周期小于规定的同步帧周期阀值;
确定单元, 用于确定是否接受所述同步帧周期指示消息所指示的同步 帧的周期;
发送单元, 用于响应于所述接收单元接收的所述同步帧周期指示消 息, 向所述局端设备发送应答消息, 所述应答消息用于指示所述设备是否 接受所述同步帧周期指示消息所指示的同步帧的周期;
训练单元, 用于在所述确定单元确定接受所述同步帧周期指示消息所 指示的同步帧的周期时, 利用接受的所述同步帧的周期内对应的同步帧, 进行矢量化训练。
15、 如权利要求 14所述的设备, 其特征在于, 所述训练单元用于: 在所述同步帧周期指示消息指示同步帧在训练阶段的周期时, 所述训 练单元用于: 在训练阶段利用接受的所述同步帧在训练阶段的周期内对应 的同步帧, 进行矢量化训练; 或
在所述同步帧周期指示消息指示同步帧在数据阶段的周期时, 所述训 练单元用于: 在数据阶段利用接受的所述同步帧在数据阶段的周期内对应 的同步帧, 进行矢量化训练。
16、 如权利要求 14 所述的设备, 其特征在于, 所述同步帧周期指示 消息指示同步帧分别在训练阶段和数据阶段中的周期, 所述应答消息指示 所述设备接受所述同步帧周期指示消息所指示的同步帧的周期包括:
所述应答消息指示所述设备接受所述同步帧周期指示消息所指示的 同步帧在训练阶段和数据阶段的周期、 所述应答消息指示所述设备仅接受 所述同步帧周期指示消息所指示的同步帧在训练阶段的周期、 所述应答消 息指示所述设备仅接受所述同步帧周期指示消息所指示的同步帧在数据阶 段的周期;
在所述应答消息指示所述设备接受所述同步帧周期指示消息所指示 的同步帧在训练阶段和数据阶段的周期时, 所述训练单元用于: 在训练阶 段利用接受的所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训 练, 在数据阶段利用接受的所述同步帧在数据阶段的周期内对应的同步帧 进行矢量化训练; 或 在所述应答消息指示所述设备仅接受所述同步帧周期指示消息所指 示的同步帧在训练阶段的周期时, 所述训练单元用于: 在训练阶段利用接 受的所述同步帧在训练阶段的周期内对应的同步帧进行矢量化训练; 或 在所述应答消息指示所述设备仅接受所述同步帧周期指示消息所指 示的同步帧在数据阶段的周期时, 所述训练单元用于: 在数据阶段利用接 受的所述同步帧在数据阶段的周期内对应的同步帧进行矢量化训练。
17、 一种网络系统, 其特征在于, 所述网络系统包括数字用户线路局 端设备和数字用户线路用户端设备, 所述数字用户线路局端设备与数字用 户线路用户端设备通过铜线相连,
所述数字用户线路局端设备为如权利要求 8-13 中任一项所述的数字 用户线路局端设备; 所述数字用户线路用户端设备为如权利要求 14-16 中 任一项所述的数字用户线路用户端设备。
18、 一种计算机程序产品, 其特征在于, 包括计算机程序代码, 当一 个计算机单元执行所述计算机程序代码时 , 该计算机单元执行如权利要求 1 -6中任一所记载的动作或执行如权利要求 7所记载的动作。
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