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CN109818703A - Time allocation method used therein, apparatus and system - Google Patents

Time allocation method used therein, apparatus and system Download PDF

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Publication number
CN109818703A
CN109818703A CN201711151396.XA CN201711151396A CN109818703A CN 109818703 A CN109818703 A CN 109818703A CN 201711151396 A CN201711151396 A CN 201711151396A CN 109818703 A CN109818703 A CN 109818703A
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China
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symbols
dta
symbol
mus
terminal
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Granted
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CN201711151396.XA
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Chinese (zh)
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CN109818703B (en
Inventor
卢刘明
胡珊
袁立权
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ZTE Corp
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ZTE Corp
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Priority to CN201711151396.XA priority Critical patent/CN109818703B/en
Priority to PCT/CN2018/116237 priority patent/WO2019096309A1/en
Publication of CN109818703A publication Critical patent/CN109818703A/en
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Publication of CN109818703B publication Critical patent/CN109818703B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

本发明提供了一种时间分配方法、装置及系统，其中，该方法包括：局端接收到DRA发送的DTA更新请求消息；该局端执行以下操作至少之一：依据该DTA更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式；将DTA配置信息发送至终端。采用上述技术方案，解决了相关技术中动态时间调整过程中，线对之间产生串扰的问题，终端等设备采用上述方案进行通信，大幅降低了线对之间产生的串扰，提升了通信效率。

The present invention provides a time allocation method, device and system, wherein the method includes: the central office receives a DTA update request message sent by the DRA; the central office performs at least one of the following operations: determining an update based on the DTA update request message time division duplex TDD frame configuration parameters, and/or determine whether to activate a specific transmission mode for reducing crosstalk between wire pairs when updating the TDD frame; send the DTA configuration information to the terminal. The above technical solution solves the problem of crosstalk between wire pairs in the dynamic time adjustment process in the related art. Devices such as terminals use the above solution to communicate, which greatly reduces the crosstalk between wire pairs and improves communication efficiency.

Description

Time allocation method used therein, apparatus and system
Technical field
The present invention relates to the communications fields, in particular to a kind of time allocation method used therein, apparatus and system.
Background technique
In the related art, copper cable access system includes quickly accessing user terminal (FAST) system and very high speed digital use Family route 2 (VDSL2) system.Its network architecture can be divided into G.fast/xDSL local side (DPU) and G.fast/xDSL terminal (CPE).Wherein, G.fast/xDSL local side (DPU) can provide multiple interfaces and be connected respectively with multiple terminals (CPE), i.e. an office End module FTU-O is connected (P2P framework) with a terminal module FTU-R, as shown in Figure 1, Fig. 1 is according in the related technology G.fast/xDSL system architecture schematic diagram.Connection medium between G.fast/xDSL local side and terminal corresponding interface can be double The copper cables medium such as twisted wire, coaxial cable.G.fast uses time division duplex (TDD) operating mode, and each tdd frame includes under Mds Row symbol and Mus uplink symbol, as shown in Figure 1, (Tsymb indicates that symbol period, TF are tdd frame period, MF=Mds+Mus+ 1)。
Dynamic time adjusts (Dynamic Time Assignment, referred to as DTA) in normal work (showtime) rank When section carries out dynamic to Mds and adjusts, DTA is issued by FTU-O and updates (DTA update) instruction to FTU-R, is wrapped in the instruction Containing the downlink symbol number Mds (new) and DTA frame countdown value (N) in the configuration of new tdd frame, as shown in Fig. 2, Fig. 2 is root According to tdd frame structure chart in the related technology.FTU-O repeats to send DTA more new command to FTU-R, wherein one tdd frame of every transmission, N just successively decreases 1, when the value of N is decremented to 0, horse back triggering is carried out based on new tdd frame format to the transmission of frame.One is coordinated Group or the multi-thread of vector (vectoring) group update DTA, i.e. coordination DTA (Coordinated DTA, abbreviation cDTA), when more DTA between line pair updates asynchronous and leads to more lines to cannot send uplink signal or downlink signal simultaneously, between line pair Serious near-end cross (NEXT) will be generated and be difficult to eliminate, so that the performance that can largely effect on system results even in and is System collapse, as shown in figure 3, Fig. 3 is asynchronous according to cDTA in the related technology and generates the schematic diagram of near-end cross.
During dynamic time adjusts in the related technology, crosstalk is generated between line pair, there is presently no have The solution of effect.
Summary of the invention
The embodiment of the invention provides a kind of time allocation method used thereins, apparatus and system, at least to solve phase in the related technology In the technology of pass during dynamic time adjustment, crosstalk is led to the problem of between line pair.
According to one embodiment of present invention, a kind of time allocation method used therein is provided, comprising: local side receives dynamic time It adjusts DTA and updates request message；The local side executes at least one following operation: updating request message according to the DTA and determines The Time Division Duplex TDD frame configuration parameter of update, and/or determine whether to start when updating tdd frame and be gone here and there between line pair for reducing The specific transmission mode disturbed；DTA configuration message is sent to terminal.
According to another embodiment of the invention, a kind of time allocation method used therein is additionally provided, comprising: terminal receives local side hair The dynamic time adjustment DTA configuration message sent；At least one following information is determined according to DTA configuration message: whether being updated Whether tdd frame or logical frame, updated tdd frame or logical frame configuration parameter start when updating tdd frame or logical frame and are used for Reduce the specific transmission mode of crosstalk between line pair.
According to another embodiment of the invention, a kind of time allocation method used therein is additionally provided, comprising: dynamic resource management device DRA sends DTA to local side and updates request message, wherein the local side determines the time-division updated according to the update request message Duplexing tdd frame configuration parameter, and/or the specific biography whether started when updating tdd frame for reducing crosstalk between line pair determined Defeated mode.
According to another embodiment of the invention, a kind of time distributor is additionally provided, described device includes: first to connect Module is received, updates request message for receiving dynamic time adjustment DTA；First execution module, for performing the following operations extremely It is one of few: to update request message according to the DTA and determine that the Time Division Duplex TDD frame configuration parameter updated, and/or determination are updating Whether specific transmission mode for reduce line pair between crosstalk is started when tdd frame；DTA configuration message is sent to and is located at remotely The FAST transceiver terminal of website.
According to another embodiment of the invention, a kind of time distributor is additionally provided, comprising: the second receiving module, For receiving the dynamic time adjustment DTA configuration message for being located at the FAST transceiver local side of optical network unit and sending；Determining module, For determining at least one following information according to DTA configuration message: whether updating tdd frame or logical frame, updated TDD Whether frame or logical frame configuration parameter start the specific biography for reducing crosstalk between line pair when updating tdd frame or logical frame Defeated mode.
According to another embodiment of the invention, a kind of time distributor is additionally provided, comprising: sending module is used for It is sent to local side and updates request message, wherein the local side determines the Time Division Duplex TDD updated according to the update request message Frame configuration parameter, and/or the specific transmission mode whether started when updating tdd frame for reducing crosstalk between line pair determined.
According to another embodiment of the invention, a kind of time sharing system is additionally provided, comprising: dynamic resource management device DRA sends DTA to local side and updates request message；The local side receives the DTA and updates request message, and the local side executes following At least one operation: request message is updated according to the DTA and determines the Time Division Duplex TDD frame configuration parameter updated, and/or is determined Whether start the specific transmission mode for reducing crosstalk between line pair when updating tdd frame；DTA configuration message is sent to end End；Wherein, after the DTA is configured message side to terminal by the local side, the terminal receives the DTA configuration and disappears Breath, the terminal determine at least one following information according to DTA configuration message: whether updating tdd frame or logical frame, update Whether tdd frame or logical frame configuration parameter afterwards start when updating tdd frame or logical frame for reducing crosstalk between line pair Specific transmission mode.
According to another embodiment of the invention, a kind of storage medium is additionally provided, the storage medium includes storage Program, wherein described program executes method described in any one of above-described embodiment when running.
According to another embodiment of the invention, a kind of processor is additionally provided, which is characterized in that the processor is used for Run program, wherein described program executes method described in any one of above-described embodiment when running.
Through the invention, the DTA that local side receives DRA transmission updates request message；The local side executes following operation at least One of: request message is updated according to the DTA and determines the Time Division Duplex TDD frame configuration parameter updated, and/or is determined and updated TDD Whether specific transmission mode for reduce line pair between crosstalk is started when frame；DTA configuration information is sent to terminal.Using upper Technical solution is stated, during solving dynamic time adjustment in the related technology, crosstalk is led to the problem of between line pair, terminal etc. is set It is standby to be communicated using the above scheme, the crosstalk generated between line pair is significantly reduced, communication efficiency is improved.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is according to G.fast/xDSL system architecture schematic diagram in the related technology；
Fig. 2 is according to tdd frame structure chart in the related technology；
Fig. 3 is asynchronous according to cDTA in the related technology and generates the schematic diagram of near-end cross；
Fig. 4 is the flow chart of time allocation method used therein according to an embodiment of the present invention；
Fig. 5 is the rigid zero setting of DTAFDC under Mds.new > Mds situation of concrete mode 1 according to the present invention and Ack (all)= CDTA when 0 updates flow diagram；
Fig. 6 is the rigid zero setting of DTAFDC under Mds.new < Mds situation of specific embodiment 2 according to the present invention and Ack (all)=0 cDTA when updates flow diagram；
Fig. 7 is the rigid zero setting of DTAFDC and the Ack under Mds.new > Mds situation of specific embodiment 3 according to the present invention (all)=1 cDTA when updates flow diagram.
Specific embodiment
The technical solution of present specification can be applied in copper cable access system, and local side can be optical network unit FAST transceiver (Fast Transceiver Unit at the Optical network unit, referred to as FTU-O), eventually End can be FAST transceiver (Fast Transceiver Unit at the Remote site, the letter positioned at remote site Referred to as FTU-R), it is still, not limited to this.
Embodiment one
A kind of time allocation method used therein for running the above-mentioned network architecture is provided in the present embodiment, and Fig. 4 is according to the present invention The flow chart of the time allocation method used therein of embodiment, as shown in figure 4, the process includes the following steps:
Step S402, local side receive dynamic time adjustment DTA and update request message；
Step S404, the local side execute at least one following operation: according to the DTA update request message determine update when Point duplexing tdd frame configuration parameter, and/or determine and whether start when updating tdd frame for reducing the specific of crosstalk between line pair Transmission mode；DTA configuration message is sent to terminal.
Through the above steps, the DTA that terminal receives DRA transmission updates request message；The terminal executes following operation extremely It is one of few: to update request message according to the DTA and determine that the Time Division Duplex TDD frame configuration parameter updated, and/or determination are updating Whether specific transmission mode for reduce line pair between crosstalk is started when tdd frame；DTA configuration information is sent to local side.It adopts Crosstalk, local side are led to the problem of between line pair during solving dynamic time adjustment in the related technology with above-mentioned technical proposal Etc. equipment communicated using the above scheme, significantly reduce the crosstalk generated between line pair, improve communication efficiency.
Optionally, it includes following one which, which updates the corresponding DTA of request message: independent dynamic time distribution (Independent Dynamic time assignment, referred to as iDTA) or coordinate dynamic time distribution (Coordinated DTA, referred to as cDTA).
Optionally, update request message, including at least one following information: under tdd frame or logical frame to be updated Row symbolic number；Indicate first tdd frame or logic frame information using the tdd frame configuration information updated；For determining coordination group Or whether each terminal has received the instruction information of DTA configuration message in Vector Groups.You need to add is that the coordination group or Vector Groups can be the composition of the local side in DRA.
Optionally, it includes at least one following information which, which configures message: the downlink of tdd frame or logical frame to be updated Symbolic number；DTA frame countdown value；For determining, whether each terminal has received DTA configuration in coordination group or Vector Groups First instruction information of instruction.
Optionally, the local side is after being sent to terminal for the first instruction information, this method further include: the local side receives It is used to determine in coordination group or Vector Groups that each terminal to have received the second indication information that DTA configures message to transmission；It should The second indication information is sent to the terminal by local side.
Optionally, it includes at least one of which, which configures message: tdd frame downlink symbol number to be updated, synchronous letter Breath.
Optionally, which includes at least one of: DTA frame countdown value；Be used to indicate coordination group or to Whether each terminal has received the first instruction information of DTA configuration message in amount group.
Optionally, specific transmission mode for being used to reduce crosstalk between line pair, comprising: the local side is in tdd frame or logic At least one following operation is executed in frame in pre-set transmission symbol area: sending idle symbol；Send quiet symbol；Stop Only send symbol；Quiet symbol or idle symbol are sent in non-robust management channel RMC character position, and in RMC character position Send RMC symbol.
Optionally, the time for updating the configuration of Time Division Duplex TDD frame is determined according to DTA configuration message, and is determined whether Starting reduces the specific transmission mode of crosstalk between line pair, including following one: the local side when frame countdown value is zero, In the case that the local side has been acknowledged that DTA configuration message has been received in each terminal in coordination group or Vector Groups, more according to this New request message starts updated tdd frame and is communicated, and in the downlink symbol of downlink symbol number in the updated, sends number According to symbol or RMC symbol；The local side is confirmed each terminal in the local side and has received DTA when frame countdown value is zero In the case where configuring message, one of following operation is executed: starting updated tdd frame according to the update request message and led to Letter；In the downlink symbol of downlink symbol number in the updated, data symbol or RMC symbol are sent；It is used to reduce line using this The specific transmission mode of the crosstalk between.
Optionally, after local side is communicated using the specific transmission mode, this method further include:
In the case where the local side determines that each terminal has received DTA configuration-direct message in coordination group or Vector Groups, Stop using the specific transmission mode, in the downlink symbol of downlink symbol number in the updated, sends data symbol or RMC symbol Number.
Optionally, which includes the FAST transceiver FTU-O positioned at remote site；The terminal includes being located at optical-fiber network list The FAST transceiver FTU-R of member.
According to another embodiment of the invention, a kind of time allocation method used therein is additionally provided, method includes the following steps:
Step 1, terminal receive the dynamic time adjustment DTA that local side is sent and configure message；
Step 2 determines at least one following information according to DTA configuration message: whether updating tdd frame or logical frame, more Whether tdd frame or logical frame configuration parameter after new, start when updating tdd frame or logical frame for reducing crosstalk between line pair Specific transmission mode.
Optionally, this method further includes following one: when frame countdown value is zero, the terminal determine coordination group or In the case of DTA configuration message has been received in each terminal in Vector Groups, the terminal is message initiated more according to DTA configuration Tdd frame or logical frame after new are communicated, and in the uplink symbol of uplink symbol number in the updated, send data symbols Number or RMC symbol；When frame countdown value is zero, it not can confirm that each terminal is in coordination group or Vector Groups in the terminal In the case of receiving DTA configuration message, which configures message initiated updated tdd frame or logical frame according to the DTA Communication, and communicated using the first specific transmission mode.
Optionally, the first specific transmission mode, comprising: the terminal pre-set uplink in tdd frame or logical frame At least one following operation is executed in symbol area: sending idle symbol；Send quiet symbol；Stop sending symbol；Non- strong Strong management channel RMC character position sends quiet symbol or idle symbol, and sends RMC symbol in RMC character position.
Optionally, which includes at least one of:
In the case where Mds.new > Mds, the terminal is from first symbol of uplink, to (cDTA_SMax- (Mds.new-Mds)) it or on (Mus.new-Mus.min) a symbol executes at least one following operation: sending idle symbol；Hair Send quiet symbol；Stop sending symbol；Quiet symbol or idle symbol are sent in non-RMC character position and in RMC character position Send RMC symbol；
In the case where Mds.new < Mds, the terminal is from first symbol of uplink to (cDTA_SMax+ (Mds.new-Mds)) it or on (Mus.new-Mus.min) a symbol executes at least one following operation: sending idle symbol；Hair Send quiet symbol；Stop sending symbol；；Quiet symbol or idle symbol are sent in non-RMC character position, and in RMC sign bit It sets and sends RMC symbol；
Wherein, Mds indicates that original downlink symbol number, Mds.new indicate updated downlink symbol number, cDTA_SMax Indicate the maximum symbolic number that cDTA allows Mds or Mus once to adjust；Mus.min refers to the minimum uplink symbol of communication system setting Number.
You need to add is that in present specification (Mds.new-Mds)) etc. indicate front and back both difference, (cDTA_ SMax+ (Mds.new-Mds)) it is plus sige in equation, indicate the sum of both front and backs.
Optionally, in the case where Mds.new > Mds, as Mus-cDTA_SMax >=Mus.min, the terminal is from uplink First symbol, to (cDTA_SMax- (Mds.new-Mds)) a symbol on execute at least one following operation: send not busy Set symbol；Quiet symbol；Stop sending symbol；Quiet symbol or idle symbol are sent in non-RMC character position, and is accorded in RMC Number position sends RMC symbol；
In the case where Mds.new>Mds, as Mus-cDTA_SMax<Mus.min, first from uplink of the terminal Symbol, to (Mus.new-Mus.min) a symbol on execute at least one following operation: send idle symbol；Quiet symbol； Stop sending symbol；Do not send data；Quiet symbol or idle symbol are sent in non-RMC character position, and in RMC character position Send RMC symbol；
In the case where Mds.new<Mds, as Mus-cDTA_SMax>=Mus.min, first from uplink of the terminal At least one following operation is executed on symbol to (cDTA_SMax+ (Mds.new-Mds)) a symbol: sending idle symbol；Peace Quiet symbol；Stop sending symbol；Quiet symbol or idle symbol are sent in non-RMC character position, and is sent in RMC character position RMC symbol；
In the case where Mds.new < Mds, as Mus-cDTA_SMax < Mus.min, first from uplink of the terminal At least one following operation is executed on symbol to (Mus.new-Mus.min) a symbol: sending idle symbol；Quiet symbol； Stop sending symbol；Quiet symbol or idle symbol are sent in non-RMC character position, and sends RMC symbol in RMC character position Number.
Optionally, this method further include:
The terminal does not receive the case where DTA configures message in the tdd frame in default minimum data period or logical frame Under, which is communicated using the second specific transmission mode.
Optionally, which includes:
In the case where (Mus-cDTA_SMax) > Mus.min, the terminal since Symbol.Mus+cDTA_SMax only (Mus-cDTA_SMax) a uplink peace and quiet symbol or idle symbol are sent, does not send data symbol or RMC symbol；
In the case where (Mus-cDTA_SMax) < Mus.min, which opens from Symbol.Mus+ (Mus-Mus.min) Begin only to send Mus.min uplink peace and quiet symbol or idle symbol, does not send data symbol or RMC symbol；
Wherein, Mus indicates that original uplink symbol number, cDTA_SMax indicate that cDTA allows Mds or Mus once to adjust Maximum symbolic number；Symbol.Mus indicates the corresponding first uplink symbol position original Mus；Mus.min refers to communication system The minimum uplink symbol number of setting.
According to another embodiment of the invention, a kind of time allocation method used therein is additionally provided, comprising:
Dynamic resource management device DRA sends DTA to local side and updates request message, wherein the local side is requested according to the update Message determines whether the Time Division Duplex TDD frame configuration parameter updated, and/or determination start for reducing line when updating tdd frame The specific transmission mode of the crosstalk between.
Optionally, this method further include: local side transmission has been received in each terminal in confirmation coordination group or Vector Groups DTA configures message；It will be used to confirm that the second instruction that DTA configures message to have been received in each terminal in coordination group or Vector Groups Information is sent to the local side.
It is described in detail below with reference to the preferred embodiment of the present invention.
Dynamic resource management device (Dynamic Resource Allocation, referred to as DRA) is to coordination group or vector (vectoring) all FTU-O in group send DTA update request message, and it includes the new time-division pair that cDTA, which updates request instruction, Work (Time Division Dupxing, referred to as TDD) frame (or logical frame) configuration parameter, i.e., tdd frame downlink symbol to be updated Number, synchronizing information etc.；
FTU-O sends new tdd frame (or logical frame) configuration-direct (i.e. DTA configures message) to FTU-R, and wherein DTA matches Setting message includes tdd frame to be updated (or logical frame) downlink symbol number, DTA frame countdown value (DTA the Frame Decrement count, referred to as DTAFDC are used to indicate first tdd frame to be launched based on new tdd frame configuration information Or the information of logical frame), and/or, for confirming whether each FTU-R has all received the instruction information of DTA configuration message.
FTU-O and/or FTU-R, which determines when to start according to synchronizing information, carries out TDD based on new tdd frame configuration information The communication of frame and whether start using avoiding or reducing the specific transmission mode of crosstalk between line pair.
Wherein, synchronizing information includes: to be used to indicate first tdd frame for enabling new tdd frame configuration information or logical frame letter Whether breath, each FTU-R have all received DTA configuration message.DTA frame countdown value is corresponded to (or patrols using several tdd frames Volume frame) period just starts new tdd frame configuration information, and it is every to pass through tdd frame (or logical frame) period DTA frame countdown value Just subtract one.For confirm each FTU-R whether all received DTA configuration message instruction information indicated with Ack (all): work as Ack (all)=0 indicate that each FTU-R, which is confirmed, has all received DTA configuration message when；It indicates to have confirmed that as Ack (all)=1 each FTU-R has received DTA configuration message.FTU-O is referred to using the specific transmission mode for avoiding or reducing crosstalk between line pair Or the idle symbol (idle of the interior transmission of transmission symbol area that FTU-R is pre-configured with or sets in tdd frame (or logical frame) Symbols), or quiet symbol (quiet symbols), or stop sending symbol, retain reference measure channel (Reference Measuring Channel, referred to as RMC) symbol or do not retain RMC symbol, to avoid or reduce between potential line pair Crosstalk.
FTU-R is determined when to start and is carried out the communication of tdd frame based on new tdd frame configuration information and whether start use The judgment basis for avoiding or reducing the specific transmission mode of crosstalk between line pair is as follows:
(1) DTA configuration message is received before being zero in frame countdown value as FTU-R, and confirms that each FTU-R has been received Message is configured to DTA, then when frame countdown value is zero, starts and the logical of tdd frame is carried out based on new tdd frame configuration information Letter, and data symbols (are sent in Mus.new (the uplink symbol number of update) a uplink symbol using normal transmission mode Number or RMC symbol) without using specific transmission mode for avoiding or reducing crosstalk between potential line pair.
(2) DTA configuration message is received before being zero in frame countdown value as FTU-R, but Ack therein (all)=0 is (i.e. Indicate that head end is confirmed each FTU-R and has all received DTA configuration message), then when frame countdown value is zero, starting is based on new Tdd frame configuration information carry out the communication of tdd frame, and using specific biography for avoiding or reducing crosstalk between potential line pair Defeated mode；Only when each FTU-R of confirmation has received DTA configuration message, then just from for avoiding or reducing potential line to it Between the specific transmission mode of crosstalk switch to normal transmission mode.
(3) tdd frame (or logical frame) of the FTU-R in the minimal amount period of setting does not all receive DTA configuration and disappears in the period Breath, then using the specific transmission mode for avoiding or reducing crosstalk between potential line pair, i.e., in the hair for being pre-configured with or setting It send and sends idle symbol (idle symbols) in symbol area, or quiet symbol (quiet symbols), or stop sending symbol Number.Specific transmission mode can include: FTU-R is from Symbol.Mus+cDTA_SMax as (Mus-cDTA_SMax) > Mus.min Start only to send (Mus-cDTA_SMax) a uplink quiet symbols, does not send data symbol or RMC symbol；As (Mus- CDTA_SMax) < Mus.min when FTU-R since Symbol.Mus+ (Mus-Mus.min) only send Mus.min uplink Quiet symbols does not send data symbol or RMC symbol.Wherein Mus indicates original uplink symbol number, cDTA_SMax table Show the maximum symbolic number (stride) that cDTA allows Mds (or Mus) once to adjust.Symbol.Mus indicates original Mus corresponding the One uplink symbol position.Mus.min refers to the minimum uplink symbol number that system allows or sets.
FTU-O is determined when to start and is carried out the communication of tdd frame based on new tdd frame configuration information and whether start use The foundation for avoiding or reducing the specific transmission mode of crosstalk between line pair is as follows:
(1) it has confirmed that each FTU-R has received DTA configuration message before being zero in frame countdown value as FTU-O, then exists When frame countdown value is zero, start the communication that tdd frame is carried out based on new tdd frame configuration information, and pass using normal Defeated mode is without using the specific transmission mode for avoiding or reducing crosstalk between potential line pair.
(2) each FTU-R is confirmed before being zero in frame countdown value as FTU-O and has all received DTA configuration message, then exists When frame countdown value is zero, start the communication for carrying out tdd frame based on new tdd frame configuration information, or directlys adopt normal Transmission mode (data symbol or RMC symbol are sent i.e. in Mds.new (the downlink symbol number of update) a downlink symbol)；Or Person is using the specific transmission mode for avoiding or reducing crosstalk between potential line pair, only when FTU-O has confirmed each FTU-R DTA configuration message is received, then is just switched to normally from the specific transmission mode for avoiding or reducing crosstalk between potential line pair Transmission mode.
Here is the specific embodiment of the preferred embodiment of the present invention
It should be noted that just zero setting is meant that kind of a critical state, DAT frame countdown value will zero setting the meaning.
Specific embodiment 1:
Fig. 5 is the rigid zero setting of DTAFDC under Mds.new > Mds situation of concrete mode 1 according to the present invention and Ack (all)= CDTA when 0 updates flow diagram, as shown in figure 5, in this embodiment, the downlink in tdd frame configuration parameter to be updated Symbolic number (Mds.new) is greater than original downlink symbol number (Mds), and detailed process is as described below.
(1) FTU-O sends new tdd frame (or logical frame) configuration-direct (i.e. DTA configures message) to FTU-R, wherein DTA Configuring message includes tdd frame downlink symbol number (Mds.new) to be updated, DTA frame countdown value (DTAFDC), for confirming Whether each FTU-R has all received the instruction information (indicating with Ack (all), initial value 0) of DTA configuration message.
(2) subtract one by tdd frame (or logical frame) period DTAFDC with every, when DTAFDC reaches zero, and this When Ack (all)=0 (expression be confirmed all FTU-R all receive DTA configuration message):
1) for route 1, route 2, route 3 FTU-O, directly initiate based on new tdd frame configuration information Mds.new hair Send downlink symbol；
2) for the FTU-R of route 1 and route 2, DTA configuration message is had received, and obtained Ack (all) information is Zero, therefore start the communication that tdd frame is carried out based on new tdd frame configuration information, and using for avoiding or reducing potential line The specific transmission mode of the crosstalk between, i.e., it is a to (cDTA_SMax- (Mds.new-Mds)) from first symbol of uplink Symbol sends quiet symbol (quiet symbols), does not send data symbol.Wherein cDTA_SMax refers to that cDTA allows Mds mono- The maximum symbolic number of secondary adjustment.
3) FTU-R of route 3 is started due to not receiving DTA configuration message for avoiding or reducing potential line to it Between crosstalk specific transmission mode, i.e., only send (Mus-cDTA_SMax) a uplink quiet symbols.
(3) when the FTU-R of route 3 receives DTA configuration message (DTAFDC=0, Ack (all)=0), starting is based on new Tdd frame configuration information carries out the communication of tdd frame, i.e. uplink symbol number is Mus.new, and using potential for avoiding or reducing The specific transmission mode of crosstalk between line pair, i.e., from first symbol of uplink to (cDTA_SMax- (Mds.new-Mds)) A symbol sends quiet symbol (quiet symbols), does not send data.
(4) when head end confirms that each FTU-R has received DTA configuration message, then each FTU-O sends DTA and configures message (DTAFDC=0, Ack (all)=1), after FTU-R receives the configuration-direct, starts normal transmission mode, that is, exists Data symbol or RMC symbol are sent in Mus.new symbol.
Specific embodiment 2:
Fig. 6 is the rigid zero setting of DTAFDC under Mds.new < Mds situation of specific embodiment 2 according to the present invention and Ack (all)=0 cDTA when updates flow diagram, as shown in fig. 6, in this embodiment, in tdd frame configuration parameter to be updated Downlink symbol number (Mds.new) be less than original downlink symbol number (Mds), detailed process is as described below.
(1) FTU-O sends new tdd frame (or logical frame) configuration-direct (i.e. DTA configures message) to FTU-R, wherein DTA Configuring message includes tdd frame downlink symbol number (Mds.new) to be updated, DTA frame countdown value (DTAFDC), for confirming Whether each FTU-R has all received the instruction information (indicating with Ack (all), initial value 0) of DTA configuration message.
(2) subtract one by tdd frame (or logical frame) period DTAFDC with every, when DTAFDC reaches zero, and this When Ack (all)=0 (expression be confirmed all FTU-R all receive DTA configuration message):
1) for route 1, route 2, route 3 FTU-O, directly initiate based on new tdd frame configuration information Mds.new hair Send downlink symbol；
2) for the FTU-R of route 1 and route 2, DTA configuration message is had received, and obtained Ack (all) information is Zero, therefore start the communication that tdd frame is carried out based on new tdd frame configuration information, and using for avoiding or reducing potential line The specific transmission mode of the crosstalk between, i.e., it is a to (cDTA_SMax+ (Mds.new-Mds)) from first symbol of uplink Symbol sends quiet symbol (quiet symbols), does not send data.Wherein cDTA_SMax refers to that cDTA allows Mds once to adjust Whole maximum symbolic number.
3) FTU-R of route 3 is started due to not receiving DTA configuration message for avoiding or reducing potential line to it Between crosstalk specific transmission mode, i.e., only send (Mus-cDTA_SMax) a uplink quiet symbols.
(3) when the FTU-R of route 3 receives DTA configuration message (DTAFDC=0, Ack (all)=0), starting is based on new Tdd frame configuration information carries out the communication of tdd frame, i.e. uplink symbol number is Mus.new, and using potential for avoiding or reducing The specific transmission mode of crosstalk between line pair, i.e., from first symbol of uplink to (cDTA_SMax+ (Mds.new-Mds)) A symbol sends quiet symbol (quiet symbols), does not send data.
(4) when head end confirms that each FTU-R has received DTA configuration message, then each FTU-O sends DTA and configures message (DTAFDC=0, Ack (all)=1), after FTU-R receives the configuration-direct, starts normal transmission mode, i.e., in Mus.new Data symbol or RMC symbol are sent in a symbol.
Specific embodiment 3:
Fig. 7 is the rigid zero setting of DTAFDC and the Ack under Mds.new > Mds situation of specific embodiment 3 according to the present invention (all)=1 cDTA when updates flow diagram, as shown in fig. 7, in this embodiment, in tdd frame configuration parameter to be updated Downlink symbol number (Mds.new) be greater than original downlink symbol number (Mds), detailed process is as described below:
(1) FTU-O sends new tdd frame (or logical frame) configuration-direct (i.e. DTA configures message) to FTU-R, wherein DTA Configuring message includes tdd frame downlink symbol number (Mds.new) to be updated, DTA frame countdown value (DTAFDC), for confirming Whether each FTU-R has all received the instruction information (indicating with Ack (all), initial value 0) of DTA configuration message.
(2) subtract one by tdd frame (or logical frame) period DTAFDC with every, when DTAFDC reaches zero, and this When Ack (all)=1 (expression have confirmed that all FTU-R all receive DTA configuration message):
1) for route 1, route 2, route 3 FTU-O, directly initiate based on new tdd frame configuration information Mds.new hair Send downlink symbol；
2) for the FTU-R of route 2 and route 3, the DTA configuration message with Ack (all)=1 is had received, therefore start The communication of tdd frame is carried out based on new tdd frame configuration information, and is directly initiated based on new tdd frame configuration information Mus.new Send upstream data symbol or RMC symbol.
(3) when the FTU-R of route 1 does not receive DTA configuration message (DTAFDC=0, Ack (all)=1), starting is based on new Tdd frame configuration information carry out tdd frame communication, i.e., uplink symbol number be Mus.new, and using for avoiding or reducing it is latent Online between crosstalk specific transmission mode, i.e., from first symbol of uplink to (cDTA_SMax- (Mds.new- Mds)) a symbol sends quiet symbol (quiet symbols), does not send data.
(4) after the FTU-R of route 1 receives the configuration message of the DTA with Ack (all)=1, start normal transmission mould Formula sends data symbol or RMC symbol that is, in Mus.new symbol.
By adopting the above technical scheme, the reliability and robustness for effectively increasing cDTA update, avoid or reduce potential Line pair between near-end cross and far-end cross talk, meanwhile, also ensure cDTA update high efficiency, TDD can be completed as soon as possible The dynamic of frame configured transmission adjusts, and the tune of uplink and downlink symbolic number can quickly be carried out based on uplink and downlink traffic conditions by being conducive to route It is whole.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing The part that technology contributes can be embodied in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, clothes Business device or the network equipment etc.) execute method described in each embodiment of the present invention.
Embodiment two
A kind of time distributor is additionally provided in the present embodiment, and the device is real for realizing above-described embodiment and preferably Mode is applied, the descriptions that have already been made will not be repeated.As used below, the soft of predetermined function may be implemented in term " module " The combination of part and/or hardware.Although device described in following embodiment is preferably realized with software, hardware, or The realization of the combination of software and hardware is also that may and be contemplated.
According to one embodiment of present invention, a kind of time distributor is provided, which can be used for FTU-O, the dress It sets and includes:
First receiving module updates request message for receiving dynamic time adjustment DTA；
At least one first execution module, for performing the following operations:
Request message, which is updated, according to the DTA determines that the Time Division Duplex TDD frame configuration parameter updated, and/or determination are updating Whether specific transmission mode for reduce line pair between crosstalk is started when tdd frame；
DTA configuration message is sent to the FAST transceiver terminal positioned at remote site.
Above-mentioned apparatus can execute method described in any one alternative embodiment executed as local side.
According to one embodiment of present invention, a kind of time distributor is provided, which can be used for FTU-R, the dress It sets and includes:
Second receiving module, for receiving the dynamic time adjustment for being located at the FAST transceiver local side of optical network unit and sending DTA configures message；
Determining module, for determining at least one following information according to DTA configuration message: whether updating tdd frame or patrol Frame, updated tdd frame or logical frame configuration parameter are collected, whether is started for reducing line pair when updating tdd frame or logical frame Between crosstalk specific transmission mode.
Above-mentioned apparatus can execute method described in any one alternative embodiment executed as terminal.
According to another embodiment of the invention, a kind of time distributor is additionally provided, comprising:
Sending module updates request message for sending to local side, wherein the local side is determined according to the update request message The Time Division Duplex TDD frame configuration parameter of update, and/or determine whether to start when updating tdd frame and be gone here and there between line pair for reducing The specific transmission mode disturbed.
Above-mentioned apparatus can execute method described in any one alternative embodiment executed as DRA.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any Combined form is located in different processors.
Embodiment three
According to another embodiment of the invention, a kind of storage medium is additionally provided, the storage medium includes storage Program, wherein described program executes method described in above-mentioned any one of alternative embodiment when running.
Example IV
According to another embodiment of the invention, a kind of processor is additionally provided, the processor is used to run program, In, described program executes method described in above-mentioned any one of alternative embodiment when running.
Embodiment five
According to one embodiment of present invention, a kind of time sharing system is additionally provided, comprising:
Dynamic resource management device DRA sends DTA to local side and updates request message；
The local side receives the DTA and updates request message, which executes at least one following operation: updating according to the DTA Request message determines whether the Time Division Duplex TDD frame configuration parameter updated, and/or determination start for subtracting when updating tdd frame The specific transmission mode of crosstalk between few line pair；DTA configuration message is sent to terminal；
Wherein, after the DTA is configured message side to terminal by the local side, which receives DTA configuration message, should Terminal determines at least one following information according to DTA configuration message: whether updating tdd frame or logical frame, updated tdd frame Or logical frame configuration parameter, whether start the specific transmission for reducing crosstalk between line pair when updating tdd frame or logical frame Mode.
You need to add is that the scheme of any of the above-described alternative embodiment can be run within the system.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (26)

1.一种时间分配方法，其特征在于，包括：1. a time allocation method, is characterized in that, comprises: 局端接收到动态时间调整DTA更新请求消息；The central office receives the dynamic time adjustment DTA update request message; 所述局端执行以下操作至少之一：The central office performs at least one of the following operations: 依据所述DTA更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式；determining an updated time division duplex TDD frame configuration parameter according to the DTA update request message, and/or determining whether to activate a specific transmission mode for reducing crosstalk between wire pairs when updating the TDD frame; 将DTA配置消息发送至终端。Send the DTA configuration message to the terminal. 2.根据权利要求1所述的方法，其特征在于，所述DTA更新请求消息、DTA配置消息对应的DTA包括以下之一：独立动态时间分配iDTA；协调动态时间分配cDTA。2 . The method according to claim 1 , wherein the DTA corresponding to the DTA update request message and the DTA configuration message comprises one of the following: an independent dynamic time allocation iDTA; and a coordinated dynamic time allocation cDTA. 3 . 3.根据权利要求1所述的方法，其特征在于，所述更新请求消息，包括以下信息至少之一：3. The method according to claim 1, wherein the update request message comprises at least one of the following information: 待更新的TDD帧或逻辑帧的下行符号数；The number of downlink symbols of the TDD frame or logical frame to be updated; 指示采用更新的TDD帧配置信息的第一个TDD帧或逻辑帧信息；Indicates the first TDD frame or logical frame information using the updated TDD frame configuration information; 用于确定协调组或向量组中各终端是否均已经收到所述DTA配置消息的指示信息。Indication information for determining whether each terminal in the coordination group or the vector group has received the DTA configuration message. 4.根据权利要求1所述的方法，其特征在于，所述DTA配置消息包括以下信息至少之一：4. The method according to claim 1, wherein the DTA configuration message includes at least one of the following information: 待更新的TDD帧或逻辑帧的下行符号数；The number of downlink symbols of the TDD frame or logical frame to be updated; DTA帧递减计数值；DTA frame countdown value; 用于确定协调组或向量组中各终端是否均已经收到所述DTA配置指令的第一指示信息。It is used to determine whether each terminal in the coordination group or the vector group has received the first indication information of the DTA configuration instruction. 5.根据权利要求4所述的方法，其特征在于，所述局端在将所述第一指示信息发送至终端之后，所述方法还包括：5. The method according to claim 4, wherein after the central office sends the first indication information to the terminal, the method further comprises: 所述局端接收到发送的用于确定协调组或向量组中各终端均已经收到DTA配置消息的第二指示信息；The central office receives and sends the second indication information that is used to determine that each terminal in the coordination group or the vector group has received the DTA configuration message; 所述局端将所述第二指示信息发送至所述终端。The central office sends the second indication information to the terminal. 6.根据权利要求1所述的方法，其特征在于，所述DTA配置消息包括以下至少之一：6. The method according to claim 1, wherein the DTA configuration message comprises at least one of the following: 待更新的TDD帧下行符号数、同步信息。The number of downlink symbols and synchronization information of the TDD frame to be updated. 7.根据权利要求6所述的方法，其特征在于，所述同步信息包括以下至少之一：7. The method according to claim 6, wherein the synchronization information comprises at least one of the following: DTA帧递减计数值；用于指示协调组或向量组中各终端是否均已经收到DTA配置消息的第一指示信息。DTA frame countdown value; used to indicate whether each terminal in the coordination group or the vector group has received the first indication information of the DTA configuration message. 8.根据权利要求1所述的方法，其特征在于，所述用于减少线对之间串扰的特定传输模式，包括：8. The method according to claim 1, wherein the specific transmission mode for reducing crosstalk between wire pairs comprises: 所述局端在TDD帧或逻辑帧中预先设置的发送符号区域内执行以下操作至少之一：The central office performs at least one of the following operations in the transmission symbol area preset in the TDD frame or the logical frame: 发送闲置符号；send idle symbols; 发送安静符号；send quiet symbol; 停止发送符号；stop sending symbols; 在非健壮管理信道RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号。Quiet or idle symbols are sent at non-robust management channel RMC symbol positions, and RMC symbols are sent at RMC symbol positions. 9.根据权利要求1所述的方法，其特征在于，依据所述DTA配置消息确定更新时分双工TDD帧配置的时间，以及确定是否启动减少线对之间串扰的特定传输模式，包括以下之一：9. The method according to claim 1, wherein the time for updating the time division duplex TDD frame configuration is determined according to the DTA configuration message, and it is determined whether to activate a specific transmission mode that reduces crosstalk between wire pairs, including one of the following one: 所述局端在帧递减计数值为零时，在所述局端已经确认协调组或向量组中各终端均已经接收到DTA配置消息的情况下，依据所述更新请求消息启动更新后的TDD帧进行通信，在更新后的下行符号个数的下行符号内，发送数据符号或RMC符号；When the frame countdown value is zero, the central office has confirmed that each terminal in the coordination group or the vector group has received the DTA configuration message, and starts the updated TDD according to the update request message. The frame communicates, and in the downlink symbols of the updated downlink symbol number, the data symbols or RMC symbols are sent; 所述局端在帧递减计数值为零时，在所述局端未确认各终端均已经收到DTA配置消息的情况下，执行以下操作之一：依据所述更新请求消息启动更新后的TDD帧进行通信；在更新后的下行符号个数的下行符号内，发送数据符号或RMC符号；采用所述用于减少线对之间串扰的特定传输模式。When the frame countdown value is zero, the central office performs one of the following operations without confirming that each terminal has received the DTA configuration message: starting the updated TDD according to the update request message frame for communication; within the updated downlink symbols of the number of downlink symbols, send data symbols or RMC symbols; adopt the specific transmission mode for reducing crosstalk between line pairs. 10.根据权利要求9所述的方法，其特征在于，在局端采用所述特定传输模式进行通信之后，所述方法还包括：10. The method according to claim 9, wherein after the central office uses the specific transmission mode to communicate, the method further comprises: 在所述局端确定协调组或向量组中各终端均已经收到DTA配置指令消息的情况下，停止采用所述特定传输模式，在更新后的下行符号个数的下行符号内，发送数据符号或RMC符号。When the central office determines that each terminal in the coordination group or the vector group has received the DTA configuration instruction message, it stops using the specific transmission mode, and sends data symbols within the downlink symbols of the updated number of downlink symbols. or RMC notation. 11.根据权利要求1至10任一项中所述的方法，其特征在于，11. The method according to any one of claims 1 to 10, characterized in that, 所述局端包括位于光网络单元的FAST收发器FTU-O；The central office includes the FAST transceiver FTU-O located in the optical network unit; 所述终端包括位于远程站点的FAST收发器FTU-R。The terminal includes a FAST transceiver FTU-R located at the remote site. 12.一种时间分配方法，其特征在于，包括：12. A time allocation method, comprising: 终端接收局端发送的动态时间调整DTA配置消息；The terminal receives the dynamic time adjustment DTA configuration message sent by the central office; 依据所述DTA配置消息确定以下信息至少之一：是否更新TDD帧或逻辑帧，更新后的TDD帧或逻辑帧配置参数，在更新TDD帧或逻辑帧时是否启动用于减少线对之间串扰的特定传输模式。Determine at least one of the following information according to the DTA configuration message: whether to update the TDD frame or the logical frame, the updated TDD frame or logical frame configuration parameters, whether to start to reduce crosstalk between line pairs when updating the TDD frame or logical frame specific transmission mode. 13.根据权利要求12所述的方法，其特征在于，所述方法还包括以下之一：13. The method according to claim 12, wherein the method further comprises one of the following: 在帧递减计数值为零时，在所述终端确定协调组或向量组中各终端均已经接收到所述DTA配置消息的情形下，所述终端依据所述DTA配置消息启动更新后的TDD帧或逻辑帧进行通信，以及在更新后的上行符号个数的上行符号内，发送数据符号或RMC符号；When the frame countdown value is zero, and the terminal determines that each terminal in the coordination group or the vector group has received the DTA configuration message, the terminal starts the updated TDD frame according to the DTA configuration message or logical frame for communication, and in the updated uplink symbols of the number of uplink symbols, send data symbols or RMC symbols; 在帧递减计数值为零时，在所述终端未能确认协调组或向量组中各终端均已经接收到所述DTA配置消息的情形下，所述终端依据所述DTA配置消息启动更新后的TDD帧或逻辑帧通信，以及采用第一特定传输模式进行通信。When the frame countdown value is zero, in the case that the terminal fails to confirm that each terminal in the coordination group or the vector group has received the DTA configuration message, the terminal starts the updated configuration message according to the DTA configuration message. TDD frame or logical frame communication, and communication using a first specific transmission mode. 14.根据权利要求13所述的方法，其特征在于，所述第一特定传输模式，包括：14. The method according to claim 13, wherein the first specific transmission mode comprises: 所述终端在TDD帧或逻辑帧中预先设置的上行符号区域内执行以下操作至少之一：The terminal performs at least one of the following operations in the uplink symbol area preset in the TDD frame or the logical frame: 发送闲置符号；send idle symbols; 发送安静符号；send quiet symbol; 停止发送符号；stop sending symbols; 在非健壮管理信道RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号。Quiet or idle symbols are sent at non-robust management channel RMC symbol positions, and RMC symbols are sent at RMC symbol positions. 15.根据权利要求13所述的方法，其特征在于，所述第一特定传输模式包括以下至少之一：15. The method according to claim 13, wherein the first specific transmission mode comprises at least one of the following: 在Mds.new>Mds的情况下，所述终端从上行的第一个符号，到第(cDTA_SMax-(Mds.new-Mds))或(Mus.new-Mus.min)个符号上执行以下操作至少之一：发送闲置符号；发送安静符号；停止发送符号；在非RMC符号位置发送安静符号或闲置符号且在RMC符号位置发送RMC符号；In the case of Mds.new>Mds, the terminal performs the following operations from the first symbol of the uplink to the (cDTA_SMax-(Mds.new-Mds)) or (Mus.new-Mus.min)th symbol At least one of: send idle symbols; send quiet symbols; stop sending symbols; send quiet symbols or idle symbols at non-RMC symbol positions and send RMC symbols at RMC symbol positions; 在Mds.new<Mds的情况下，所述终端从上行的第一个符号到第(cDTA_SMax+(Mds.new-Mds))或(Mus.new-Mus.min)个符号上执行以下操作至少之一：发送闲置符号；发送安静符号；停止发送符号；在非RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号；In the case of Mds.new<Mds, the terminal performs at least one of the following operations from the first symbol of the uplink to the (cDTA_SMax+(Mds.new-Mds)) or (Mus.new-Mus.min)th symbol One: send idle symbols; send quiet symbols; stop sending symbols; send quiet symbols or idle symbols at non-RMC symbol positions, and send RMC symbols at RMC symbol positions; 其中，所述Mds表示原有的下行符号数，所述Mds.new表示更新后的下行符号数，所述cDTA_SMax表示cDTA允许Mds或Mus一次调整的最大符号数；所述Mus.min是指通信系统设定的最小上行符号数。Wherein, the Mds represents the original number of downlink symbols, the Mds.new represents the updated number of downlink symbols, and the cDTA_SMax represents the maximum number of symbols that cDTA allows Mds or Mus to adjust at one time; the Mus.min refers to the communication The minimum number of upstream symbols set by the system. 16.根据权利要求15所述的方法，其特征在于，包括以下至少之一：16. The method of claim 15, comprising at least one of the following: 在Mds.new>Mds的情况下，当Mus-cDTA_SMax≥Mus.min时，所述终端从上行的第一个符号，到第(cDTA_SMax-(Mds.new-Mds))个符号上执行以下操作至少之一：发送闲置符号；安静符号；停止发送符号；在非RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号；In the case of Mds.new>Mds, when Mus-cDTA_SMax≥Mus.min, the terminal performs the following operations from the first symbol of the uplink to the (cDTA_SMax-(Mds.new-Mds))th symbol At least one of: send idle symbols; quiet symbols; stop sending symbols; send quiet symbols or idle symbols at non-RMC symbol positions, and send RMC symbols at RMC symbol positions; 在Mds.new>Mds的情况下，当Mus-cDTA_SMax<Mus.min时，所述终端从上行的第一个符号，到第(Mus.new-Mus.min)个符号上执行以下操作至少之一：发送闲置符号；安静符号；停止发送符号；不发送数据；在非RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号；In the case of Mds.new>Mds, when Mus-cDTA_SMax<Mus.min, the terminal performs at least one of the following operations from the first symbol of the uplink to the (Mus.new-Mus.min)th symbol One: send idle symbols; quiet symbols; stop sending symbols; do not send data; send quiet symbols or idle symbols at non-RMC symbol positions, and send RMC symbols at RMC symbol positions; 在Mds.new<Mds的情况下，当Mus-cDTA_SMax≥Mus.min时，所述终端从上行的第一个符号到第(cDTA_SMax+(Mds.new–Mds))个符号上执行以下操作至少之一：发送闲置符号；安静符号；停止发送符号；在非RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号；In the case of Mds.new<Mds, when Mus-cDTA_SMax≥Mus.min, the terminal performs at least one of the following operations from the first symbol of the uplink to the (cDTA_SMax+(Mds.new-Mds))th symbol One: send idle symbols; quiet symbols; stop sending symbols; send quiet symbols or idle symbols at non-RMC symbol positions, and send RMC symbols at RMC symbol positions; 在Mds.new<Mds的情况下，当Mus-cDTA_SMax<Mus.min时，所述终端从上行的第一个符号到第(Mus.new-Mus.min)个符号上执行以下操作至少之一：发送闲置符号；安静符号；停止发送符号；在非RMC符号位置发送安静符号或闲置符号，且在RMC符号位置发送RMC符号。In the case of Mds.new<Mds, when Mus-cDTA_SMax<Mus.min, the terminal performs at least one of the following operations from the first symbol of the uplink to the (Mus.new-Mus.min)th symbol : send idle symbols; quiet symbols; stop sending symbols; send quiet symbols or idle symbols at non-RMC symbol positions, and send RMC symbols at RMC symbol positions. 17.根据权利要求13所述的方法，其特征在于，所述方法还包括：17. The method of claim 13, wherein the method further comprises: 所述终端在预设最小数据周期的TDD帧或逻辑帧内，未接收到所述DTA配置消息的情况下，所述终端采用第二特定传输模式进行通信。If the terminal does not receive the DTA configuration message within the TDD frame or logical frame of the preset minimum data period, the terminal uses the second specific transmission mode to communicate. 18.根据权利要求17所述的方法，其特征在于，所述第二特定传输模式包括：18. The method of claim 17, wherein the second specific transmission mode comprises: 在(Mus-cDTA_SMax)>Mus.min的情况下，所述终端从Symbol.Mus+cDTA_SMax开始只发送(Mus-cDTA_SMax)个上行安静符号或闲置符号，不发送数据符号或RMC符号；In the case of (Mus-cDTA_SMax)>Mus.min, the terminal only sends (Mus-cDTA_SMax) uplink quiet symbols or idle symbols from Symbol.Mus+cDTA_SMax, and does not send data symbols or RMC symbols; 在(Mus-cDTA_SMax)<Mus.min的情况下，所述终端从Symbol.Mus+(Mus-Mus.min)开始只发送Mus.min个上行安静符号或闲置符号，不发送数据符号或RMC符号；In the case of (Mus-cDTA_SMax)<Mus.min, the terminal only sends Mus.min uplink quiet symbols or idle symbols from Symbol.Mus+(Mus-Mus.min), and does not send data symbols or RMC symbols; 其中，所述Mus表示原有的上行符号数，所述cDTA_SMax表示cDTA允许Mds或Mus一次调整的最大符号数；所述Symbol.Mus表示原有Mus对应的第一个上行符号位置；所述Mus.min是指通信系统设定的最小上行符号数。Wherein, the Mus represents the original number of uplink symbols, the cDTA_SMax represents the maximum number of symbols that cDTA allows Mds or Mus to adjust at one time; the Symbol.Mus represents the position of the first uplink symbol corresponding to the original Mus; the Mus .min refers to the minimum number of uplink symbols set by the communication system. 19.一种时间分配方法，其特征在于，包括：19. A time allocation method, comprising: 动态资源管理器DRA向局端发送DTA更新请求消息，其中，所述局端依据所述更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式。The dynamic resource manager DRA sends a DTA update request message to the central office, wherein the central office determines the updated time division duplex TDD frame configuration parameters according to the update request message, and/or determines whether to activate the TDD frame when updating the TDD frame. A specific transmission mode that reduces crosstalk between wire pairs. 20.根据权利要求19所述的方法，其特征在于，所述方法还包括：20. The method of claim 19, wherein the method further comprises: 确认协调组或向量组中各终端是否均已经接收到局端发送的DTA配置消息；Confirm whether each terminal in the coordination group or the vector group has received the DTA configuration message sent by the central office; 将用于确认协调组或向量组中各终端是否均已经接收到DTA配置消息的第二指示信息发送至所述局端。The second indication information for confirming whether each terminal in the coordination group or the vector group has received the DTA configuration message is sent to the central office. 21.一种时间分配装置，其特征在于，所述装置包括：21. A time distribution device, characterized in that the device comprises: 第一接收模块，用于接收到动态时间调整DTA更新请求消息；a first receiving module, configured to receive a dynamic time adjustment DTA update request message; 第一执行模块，用于执行以下操作至少之一：A first execution module, configured to perform at least one of the following operations: 依据所述DTA更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式；determining an updated time division duplex TDD frame configuration parameter according to the DTA update request message, and/or determining whether to activate a specific transmission mode for reducing crosstalk between wire pairs when updating the TDD frame; 将DTA配置消息发送至位于远程站点的FAST收发器终端。The DTA configuration message is sent to the FAST transceiver terminal located at the remote site. 22.一种时间分配装置，其特征在于，包括：22. A time distribution device, characterized in that it comprises: 第二接收模块，用于接收位于光网络单元的FAST收发器局端发送的动态时间调整DTA配置消息；The second receiving module is used to receive the dynamic time adjustment DTA configuration message sent by the FAST transceiver central office located in the optical network unit; 确定模块，用于依据所述DTA配置消息确定以下信息至少之一：是否更新TDD帧或逻辑帧，更新后的TDD帧或逻辑帧配置参数，在更新TDD帧或逻辑帧时是否启动用于减少线对之间串扰的特定传输模式。A determining module, configured to determine at least one of the following information according to the DTA configuration message: whether to update the TDD frame or logical frame, the updated TDD frame or logical frame configuration parameters, whether to start the TDD frame or logical frame for reducing A specific transmission mode of crosstalk between wire pairs. 23.一种时间分配装置，其特征在于，包括：23. A time distribution device, characterized in that, comprising: 发送模块，用于向局端发送更新请求消息，其中，所述局端依据所述更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式。A sending module, configured to send an update request message to the central office, wherein the central office determines the updated time division duplex TDD frame configuration parameters according to the update request message, and/or determines whether to activate the TDD frame when updating the TDD frame. A specific transmission mode of crosstalk between wire pairs. 24.一种时间分配系统，其特征在于，包括：24. A time distribution system, characterized in that it comprises: 动态资源管理器DRA向局端发送DTA更新请求消息；The dynamic resource manager DRA sends a DTA update request message to the central office; 所述局端接收所述DTA更新请求消息，所述局端执行以下操作至少之一：依据所述DTA更新请求消息确定更新的时分双工TDD帧配置参数，和/或确定在更新TDD帧时是否启动用于减少线对之间串扰的特定传输模式；将DTA配置消息发送至终端；The central office receives the DTA update request message, and the central office performs at least one of the following operations: determining the updated time division duplex TDD frame configuration parameters according to the DTA update request message, and/or determining when updating the TDD frame Whether to activate a specific transmission mode for reducing crosstalk between pairs; send DTA configuration messages to the terminal; 其中，在所述局端将所述DTA配置消息方至终端之后，所述终端接收到所述DTA配置消息，所述终端依据所述DTA配置消息确定以下信息至少之一：是否更新TDD帧或逻辑帧，更新后的TDD帧或逻辑帧配置参数，在更新TDD帧或逻辑帧时是否启动用于减少线对之间串扰的特定传输模式。Wherein, after the central office sends the DTA configuration message to the terminal, the terminal receives the DTA configuration message, and the terminal determines at least one of the following information according to the DTA configuration message: whether to update the TDD frame or Logical frame, updated TDD frame or logical frame configuration parameter, whether to enable a specific transmission mode for reducing crosstalk between wire pairs when updating TDD frame or logical frame. 25.一种存储介质，其特征在于，所述存储介质包括存储的程序，其中，所述程序运行时执行上述权利要求1至20任一项中所述的方法。25. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, the method described in any one of the preceding claims 1 to 20 is executed. 26.一种处理器，其特征在于，所述处理器用于运行程序，其中，所述程序运行时执行上述权利要求1至20任一项中所述的方法。26. A processor, characterized in that the processor is used for running a program, wherein when the program is running, the method described in any one of the above claims 1 to 20 is executed.
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