WO2015161438A1 - 频谱划分的方法及装置 - Google Patents

频谱划分的方法及装置 Download PDF

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Publication number
WO2015161438A1
WO2015161438A1 PCT/CN2014/075930 CN2014075930W WO2015161438A1 WO 2015161438 A1 WO2015161438 A1 WO 2015161438A1 CN 2014075930 W CN2014075930 W CN 2014075930W WO 2015161438 A1 WO2015161438 A1 WO 2015161438A1
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WIPO (PCT)
Prior art keywords
spectrum
data
type
ratio
boundary
Prior art date
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PCT/CN2014/075930
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English (en)
French (fr)
Inventor
涂建平
董卉慎
石操
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 CN201480000391.5A priority Critical patent/CN105379182B/zh
Priority to EP14890118.4A priority patent/EP3116164B1/en
Priority to PCT/CN2014/075930 priority patent/WO2015161438A1/zh
Publication of WO2015161438A1 publication Critical patent/WO2015161438A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854Wide area networks, e.g. public data networks
    • H04L12/2856Access arrangements, e.g. Internet access
    • H04L12/2869Operational details of access network equipments
    • H04L12/2898Subscriber equipments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854Wide area networks, e.g. public data networks
    • H04L12/2856Access arrangements, e.g. Internet access
    • H04L12/2869Operational details of access network equipments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for spectrum division.
  • xDSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • the passband transmission DSL uses frequency division multiplexing technology to make xDSL and the traditional telephone service coexist on the same pair of twisted pair lines, wherein xDSL occupies a high frequency band, and the traditional telephone service occupies a baseband frequency band below 4 kHz, and the traditional telephone service signal is separated from the xDSL signal. Separation.
  • the passband transmission xDSL adopts discrete multi-audio modulation, and the system providing multi-channel xDSL access is called DSLAM (Digital Subscriber Line Access Multiplexer).
  • DSLAM Digital Subscriber Line Access Multiplexer
  • Crosstalk includes near-end crosstalk and far-end crosstalk, and both near-end crosstalk and far-end crosstalk energy increase as the band increases.
  • Existing xDSL technology adopts FDD for uplink and downlink channels
  • the uplink and downlink frequency band planning determines the allocation of the uplink and downlink rates.
  • the VDSL2 Flexible End Cross-Talk Cancellation
  • the DSLAM performs uplink and downlink data transmission according to the divided uplink and downlink spectrums between the terminal and the network.
  • the existing fixed frequency band division does not guarantee that all users can achieve the expected uplink-downlink rate ratio.
  • video services such as IPTV (Internet Protocol) and 3D (Digital Dimensions)
  • IPTV Internet Protocol
  • 3D Digital Dimensions
  • users' demand for downlink speed has increased sharply, and the demand for uplink rate is lower than that of downlink.
  • the demand is much lower.
  • the current uplink and downlink rates of the operators are generally above 1:4, and some even reach 1:9.
  • the uplink rate needs a maximum of 25M, and the excess spectrum resources are allocated to The uplink is wasted. At this time, the operator's division of the uplink and downlink spectrum is unreasonable. The system cannot fully utilize the spectrum resources, which limits the downlink data transmission rate and system performance.
  • the embodiments of the present invention provide a method and an apparatus for spectrum division, which can solve the problem that the existing uplink and downlink spectrum division manners cause the system to not fully utilize the spectrum resources, and limit the downlink data transmission rate and the performance of the system.
  • an embodiment of the present invention provides a method for spectrum division, including:
  • the current ratio is smaller than the first target ratio, adjusting a boundary between the first spectrum and the second spectrum to increase a transmission rate of the first type of data, where the first target ratio is a predetermined value definite;
  • the updated first spectrum and the updated second spectrum are determined according to the adjusted spectral boundary.
  • the adjusting a boundary between the first spectrum and the second spectrum when the current ratio is smaller than a first target ratio Previously the method further includes:
  • a maximum value of the second target ratios of the respective services is determined as the first target ratio.
  • the method further includes:
  • the ratio between the adjusted data rate of the first type of data and the adjusted transmission rate of the second type of data is re-estimated, and the ratio is used as the updated current ratio.
  • the method further includes:
  • the spectral boundary is maintained when the current ratio is not less than the first target ratio.
  • the method further includes: The domain is determined to be an overlapping spectrum interval;
  • an embodiment of the present invention provides a device for spectrum division, including: An estimating unit, configured to estimate, according to a spectrum boundary, a current ratio between a transmission rate of the first type of data and a transmission rate of the second type of data, where the boundary of the spectrum is a boundary between the first spectrum and the second spectrum The first spectrum is used to transmit the first type of data, and the second spectrum is used to transmit the second type of data;
  • a adjusting unit configured to adjust a boundary between the first spectrum and the second spectrum to increase a transmission rate of the first type of data when the current ratio is smaller than a first target ratio, where a target ratio is predetermined;
  • a determining unit configured to determine the updated first spectrum and the updated second spectrum according to the adjusted spectral boundary.
  • the apparatus further includes:
  • An obtaining unit configured to acquire a second target ratio between a target transmission rate of the first type of data of each service and a target transmission rate of the second type of data
  • the determining unit is further configured to determine a maximum value of the second target ratios of the services as the first target ratio.
  • the acquiring unit is further configured to obtain line parameter information, where the device further includes:
  • a setting unit configured to set default values of the first frequency band and the second frequency band; wherein the line parameter information and the default value are used to estimate the current ratio.
  • the adjusting a boundary between the first spectrum and the second spectrum to increase a transmission rate of the first type of data is reduced;
  • the estimating unit is further configured to re-estimate a ratio between the adjusted data rate of the first type of data and the adjusted transmission rate of the second type of data according to the adjusted spectral boundary, and use the ratio as the updated current ratio.
  • the device further includes: And a holding unit, configured to maintain the spectral boundary when the current ratio is not less than the first target ratio.
  • the determining unit area is determined to be an overlapping spectrum section
  • an allocating unit configured to redistribute bits of all users in the overlapping spectrum interval by an online reconfiguration 0LR technology.
  • the method and apparatus for spectrum division provided by the embodiment of the present invention, the digital subscriber line access multiplexer in the present invention estimates the current ratio between the transmission rate of the first type of data and the transmission rate of the second type of data according to the spectrum boundary; When the current ratio is smaller than the first target ratio, the boundary between the first spectrum and the second spectrum is adjusted to increase the transmission rate of the first type of data, and the updated first spectrum and update are determined according to the adjusted spectral boundary. After the second spectrum.
  • the boundary of the spectrum is adjusted to improve the rate of downlink data transmission, thereby fully utilizing spectrum resources and improving system performance.
  • FIG. 1 is a schematic diagram of a system model provided by the prior art
  • FIG. 3 is a flowchart of a method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a cutoff frequency movement according to another embodiment of the present invention.
  • FIG. 6 is a flowchart of a method according to another embodiment of the present invention.
  • FIG. 7 and FIG. 8 are schematic structural diagrams of a device according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a device according to another embodiment of the present invention.
  • An embodiment of the present invention provides a method for spectrum division, which is used for a digital subscriber line access multiplexer. As shown in FIG. 3, the method includes:
  • the digital subscriber line access multiplexer estimates a current ratio between a transmission rate of the first type of data and a transmission rate of the second type of data according to a spectral boundary.
  • the spectrum boundary is a boundary between the first spectrum and the second spectrum in the spectrum, the first spectrum is used to transmit the first type of data, and the second spectrum is used to transmit the second type of data.
  • the line parameter information is also obtained, and the digital subscriber line access multiplexer estimates the current ratio of each line and line length.
  • the digital subscriber line access multiplexer sets default values of the first frequency band and the second frequency band for estimating the current ratio.
  • the digital subscriber line access multiplexer adjusts a boundary between the first spectrum and the second frequency to increase the transmission rate of the first type of data.
  • the first target ratio is predetermined.
  • the digital subscriber line access multiplexer can obtain a second target ratio between a target transmission rate of the first type of data of each service and a target transmission rate of the second type of data; and then, a second target of each service The maximum value in the ratio is determined as the first target ratio.
  • the digital subscriber line access multiplexer adjusts a boundary between the first spectrum and the second spectrum to increase a transmission rate of the first type of data while reducing a transmission rate of the second type of data; Adjusting the boundary between the first spectrum and the second spectrum when the current ratio is smaller than the first target ratio Thereafter, the digital subscriber line access multiplexer can re-estimate the ratio between the adjusted data rate of the first type of data and the adjusted transmission rate of the second type of data according to the adjusted spectral boundary, and the ratio is used as an update. The current ratio after.
  • the spectral boundary is maintained when the current ratio is not less than the first target ratio.
  • the digital subscriber line access multiplexer determines the updated first spectrum and the updated second spectrum according to the adjusted spectral boundary.
  • the digital subscriber line access multiplexer divides the spectrum according to the target spectral boundary, the frequency interval; and all users in the overlapping frequency interval are processed by an OLR (On Line Reconf igura t ion) technology.
  • OLR On Line Reconf igura t ion
  • the digital subscriber line access multiplexer divides the first spectrum and the second spectrum according to the first target ratio, but the digital subscriber line access multiplexer divides the first spectrum and the second.
  • the method of the spectrum is not limited to this, and the first spectrum and the second spectrum may be divided by other conditions that are derived from the ratio of the transmission rate of the first type of data to the transmission rate of the second type of data, for example, the first type of data.
  • the range covered by the transmission rate and the transmission rate of the second type of data (the maximum transmission distance that can be reached), the power consumption of the digital subscriber line access multiplexer, the stability of each service, and the first spectrum and the second spectrum signal
  • the noise ratio margin and the like, the data processing procedure thereof is the same as the embodiment of the present invention.
  • the ratio between the transmission rate of the first type of data in the foregoing embodiment and the transmission rate of the second type of data is replaced by the ratio of the coverage ratio, the ratio of the power consumption, or the ratio of the signal to noise ratio margin, and the target ratio
  • the frequency boundary is adjusted according to the comparison result to divide the first spectrum and the second spectrum size that satisfy the target.
  • the existing fixed frequency band division does not guarantee that all users can achieve the expected uplink-downlink rate ratio, and sometimes the uplink and downlink spectrum is unreasonably divided, and the system cannot fully utilize the spectrum resources, thereby limiting the downlink data transmission. Rate and system performance.
  • the digital subscriber line access multiplexer estimates the current ratio between the transmission rate of the first type of data and the transmission rate of the second type of data according to the spectrum boundary; when the current ratio is smaller than the first target ratio, the adjustment a boundary between a spectrum and a second spectrum, increasing the transmission rate of the first type of data, according to the adjusted frequency
  • the spectral boundary determines the updated first spectrum and the updated second spectrum.
  • the boundary of the spectrum is adjusted to improve the rate of downlink data transmission, thereby fully utilizing spectrum resources and improving systemicity.
  • a further embodiment of the present invention provides a method for spectrum division, which is used for a digital subscriber line access multiplexer. As shown in FIG. 4, the method includes:
  • the digital subscriber line access multiplexer obtains a ratio between an uplink rate and a downlink rate of each service.
  • the digital subscriber line access multiplexer obtains the ratio between the uplink rate and the downlink rate of each service from the service delivery system of the operator OSS (Operational Support System).
  • the uplink rate is the transmission rate of the uplink data
  • the downlink rate is the transmission rate of the downlink data.
  • the digital subscriber line access multiplexer can directly obtain the ratio from the 0SS, or derive from other information.
  • the uplink frequency band needs to transmit command information for the user, so the uplink frequency band can be allocated according to the command information, and further The ratio between the uplink and downlink rates is obtained.
  • the digital subscriber line access multiplexer determines a maximum value of the ratios of the services as a target ratio.
  • the digital subscriber line access multiplexer selects the maximum value as the target ratio from the ratio of the uplink rate to the downlink rate of each service, and the target ratio thus obtained can meet the requirements of all services.
  • the digital subscriber line access multiplexer obtains the operator's line operation parameters and line length statistics.
  • the digital subscriber line access multiplexer obtains the operator's line operation parameters and line length statistics from the 0SS.
  • the digital subscriber line access multiplexer sets a default value of the usage direction of the already divided spectrum. Wherein, for the spectrum in the station, the spectrum has been divided by a fixed division method, The digital subscriber line access multiplexer sets a default value according to the direction in which the spectrum is divided, so as to simulate the data transmission of the current spectrum. For example, set the default value of the downlink band to 0 and the default value to 1 for the upstream direction.
  • the digital subscriber line access multiplexer estimates a rate ratio of uplink and downlink data transmission.
  • the digital subscriber line access multiplexer estimates the rate ratio of the uplink and downlink data transmissions under different line lengths according to the obtained line information and the data transmission simulation result of the current divided spectrum.
  • the digital subscriber line access multiplexer determines whether the estimated uplink-downlink data transmission rate ratio is greater than a target ratio. If the estimated uplink-downlink data transmission rate ratio is greater than the target ratio, step 207 is performed; if the estimated uplink and downlink data transmission rate is If the ratio is not greater than the target ratio, step 210 is performed.
  • the digital subscriber line access multiplexer compares the target uplink ratio with the target ratio after estimating the uplink-downlink data transmission rate ratio in step 205, and determines whether the estimated uplink-downlink data transmission rate ratio is greater than the target ratio. If the estimated uplink and downlink data transmission rate ratio is greater than the target ratio, indicating that the uplink rate has a surplus, step 207 is performed; if the estimated uplink and downlink data transmission rate ratio is not greater than the target ratio, then the division of the frequency band is not performed, and step 210 is performed.
  • the digital subscriber line access multiplexer moves the cutoff frequency of the uplink frequency band to reduce the frequency band occupied by the uplink frequency.
  • the digital subscriber line access multiplexer moves the cutoff frequency of the uplink frequency band to reduce the frequency band occupied by the uplink frequency, as shown in FIG. 5, 2 is the effect after moving on the basis of 1, and US refers to the uplink frequency band, DS. Refers to the downlink frequency band.
  • the manner in which the digital subscriber line access multiplexer adjusts the frequency band occupied by the spectrum uplink and downlink may also be the starting frequency of the mobile uplink frequency band, and is not limited herein.
  • the digital subscriber line access multiplexer estimates a rate ratio of uplink and downlink data transmission.
  • the digital subscriber line access multiplexer determines whether the estimated uplink-downlink data transmission rate ratio is greater than a target ratio. If the estimated uplink-downlink data transmission rate ratio is greater than the target ratio, step 207 is performed; if the estimated uplink and downlink data transmission rate is If the ratio is not greater than the target ratio, step 210 is performed.
  • the digital subscriber line access multiplexer generates a new spectrum plan of the station according to the frequency band cutoff frequency. It should be noted that, in the embodiment of the present invention, the digital subscriber line access multiplexer divides the uplink and downlink spectrum according to the rate ratio of uplink and downlink data transmission, but the method for dividing the uplink and downlink spectrum by the digital subscriber line access multiplexer is not only In this case, the uplink and downlink spectrum may be divided by the rate of uplink and downlink data transmission, for example, the range covered by the uplink and downlink data transmission rate (the maximum transmission distance that can be reached), and the digital subscriber line connection.
  • the data processing procedure of the power consumption of the multiplexer, the stability of each service, and the uplink and downlink spectrum signal to noise ratio margin are the same as those of the embodiment of the present invention. Specifically, the ratio between the rates of uplink and downlink data transmission in the above embodiment is replaced by the ratio of the coverage ratio, the ratio of the power consumption, or the ratio of the signal to noise ratio margin, and the target ratio is also correspondingly replaced, and the actual ratio is After comparing the target ratios, the spectral boundaries are adjusted according to the comparison results to divide the first spectrum and the second spectrum size that satisfy the target.
  • the existing fixed frequency band division does not guarantee that all users can achieve the expected uplink-downlink rate ratio, and sometimes the uplink and downlink spectrum is unreasonably divided, and the system cannot fully utilize the spectrum resources, thereby limiting the downlink data transmission. Rate and system performance.
  • the digital subscriber line access multiplexer determines the target ratio between the uplink and downlink rates, and estimates the ratio between the uplink and downlink rates according to the initial spectrum boundary. When the ratio between the uplink and downlink rates is smaller than the target ratio, the uplink and downlink are adjusted. The boundary between the spectrums, until the ratio between the uplink and downlink rates is not less than the target ratio, and the uplink and downlink spectrum are divided according to the adjusted spectral boundaries.
  • a further embodiment of the present invention provides a method for spectrum division, which is used in a digital subscriber line access multiplexer. After the uplink and downlink spectrums divided by the method shown in FIG. 4 are actually applied, as shown in FIG. Methods include: 301. The digital subscriber line access multiplexer determines an overlapping spectrum interval between the new frequency language plan and the old frequency language plan.
  • step 207 the digital subscriber line access multiplexer adjusts the spectrum division, and the new spectrum plan is the spectrum plan in step 210, and the old spectrum plan is the spectrum plan not adjusted through step 207.
  • the Digital Subscriber Line Access Multiplexer will determine the overlapping spectral intervals for the new spectrum plan and the old spectrum plan.
  • the digital subscriber line access multiplexer uses an online reconfiguration technique to configure the bit allocation of all users in the overlapping spectrum interval to zero.
  • the digital subscriber line access multiplexer sets the bit allocation of all users in the overlapping spectrum interval to 0, indicating that information is not temporarily transmitted in the overlapping spectrum interval.
  • the digital subscriber line access multiplexer re-transmits the bits by using an online reconfiguration technique.
  • the bit allocation is performed again by using the online reconfiguration 0LR technology, and the allocation is stopped until the uplink or downlink reaches the service target rate or the subcarriers in the overlapping spectrum interval have been allocated.
  • step 304 The digital subscriber line access multiplexer stores a new frequency plan of the station according to the allocation result. It should be noted that step 304 is an optional step, and the digital subscriber line access multiplexer stores the new frequency phrase plan of the station to facilitate the division of the subsequent spectrum.
  • the uplink and downlink spectrum is adjusted in real time according to the rate of uplink and downlink real-time transmission.
  • the line of demarcation According to the specific transmission status of the uplink and downlink data in the system, the uplink and downlink spectrums are reasonably divided, which not only fully utilizes the spectrum resources, but also improves the performance of the system, and does not need to interrupt the service when the spectrum is divided, thereby avoiding the impact on the user.
  • a further embodiment of the present invention provides a device 50 for spectrum division. As shown in FIG. 7, the device 50 includes:
  • An estimating unit 51 configured to estimate a transmission rate of the first type of data according to a spectrum boundary, and a second type a current ratio between the transmission rates of the data, the boundary of the spectrum being the boundary between the first spectrum and the second spectrum, the first spectrum being used for transmitting the first type of data, the second spectrum Used to transmit the second type of data;
  • the adjusting unit 52 is configured to adjust a boundary between the first spectrum and the second spectrum to increase a transmission rate of the first type of data when the current ratio is smaller than a first target ratio,
  • the first target ratio is predetermined
  • the determining unit 53 is configured to determine the updated first spectrum and the updated second spectrum according to the adjusted spectral boundary.
  • the device 50 may further include:
  • the obtaining unit 54 is configured to obtain a second target ratio between a target transmission rate of the first type of data of each service and a target transmission rate of the second type of data.
  • the determining unit 53 is further configured to determine a maximum value of the second target ratios of the services as the first target ratio.
  • the obtaining unit 54 is further configured to acquire line parameter information.
  • the device 50 may further include:
  • the setting unit 55 is configured to set default values of the first frequency band and the second frequency band, where the line parameter information and the default value are used to estimate the current ratio.
  • the estimating unit 51 is further configured to re-estimate a ratio between the adjusted data rate of the first type of data and the adjusted transmission rate of the second type of data according to the adjusted spectral boundary, and use the ratio as an update.
  • the device 50 may further include:
  • the holding unit 56 is configured to maintain the spectral boundary when the current ratio is not less than the first target ratio.
  • the spectral region passing through the target spectral boundary is determined to be an overlapping spectral interval.
  • the device 50 may further include:
  • An allocating unit 57 configured to use all of the overlapping spectrum intervals by an online reconfiguration 0LR technology The bits of the user are redistributed.
  • the device 50 estimates a current ratio between a transmission rate of the first type of data and a transmission rate of the second type of data according to a spectral boundary; and adjusts the first spectrum and the second spectrum when the current ratio is smaller than the first target ratio. A boundary between the first type of data is increased, and the updated first spectrum and the updated second spectrum are determined according to the adjusted spectral boundary.
  • a further embodiment of the present invention provides a device 60 for spectrum division. As shown in FIG. 9, the device 60 includes:
  • the processor 61 is configured to estimate, according to a spectrum boundary, a current ratio between a transmission rate of the first type of data and a transmission rate of the second type of data, where the spectrum boundary is between the first spectrum and the second spectrum in the spectrum.
  • a boundary the first spectrum is used to transmit the first type of data
  • the second spectrum is used to transmit the second type of data
  • the current ratio is smaller than a first target ratio
  • Defining a boundary between the first spectrum and the second spectrum increasing a transmission rate of the first type of data, the first target ratio being predetermined; and, determining, according to the adjusted spectral boundary The updated first spectrum and the updated second spectrum.
  • the processor 61 is further configured to acquire a second target ratio between a target transmission rate of the first type of data of each service and a target transmission rate of the second type of data; and, The maximum value of the second target ratios of the respective services is determined as the first target ratio.
  • the processor 61 is further configured to acquire line parameter information; and, configured to set default values of the first frequency band and the second frequency band, where the line parameter information and the default value are used for Estimate the current ratio.
  • the processor 61 is further configured to re-estimate the first according to the adjusted spectral boundary.
  • the ratio between the adjusted data rate of the class data and the adjusted transmission rate of the second type of data, and the ratio is taken as the updated current ratio.
  • the processor 61 is further configured to maintain the spectral boundary when the current ratio is not less than the first target ratio.
  • the spectral region through which the target spectral boundary passes is determined as an overlapping spectral interval; and, for redistributing bits of all users in the overlapping spectral interval by the online reconfiguration 0LR technique.
  • the device 60 estimates the current ratio between the transmission rate of the first type of data and the transmission rate of the second type of data according to the spectral boundary; and adjusts the first spectrum and the second spectrum when the current ratio is smaller than the first target ratio. A boundary between the first type of data is increased, and the updated first spectrum and the updated second spectrum are determined according to the adjusted spectral boundary. In this way, according to the first target ratio between the first type of data transmission rate and the second type of data transmission rate in the system, the boundary of the spectrum is adjusted to increase the rate of downlink data transmission, thereby fully utilizing spectrum resources and improving system performance.
  • the apparatus for performing spectrum division may implement the foregoing method embodiments.
  • the method and apparatus for spectrum division provided by the embodiments of the present invention can be applied to a digital subscriber line access multiplexer, but is not limited thereto.
  • the storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or a Random Acces s Memory (RAM).

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Abstract

本发明实施例公开了一种频谱划分的方法及装置,涉及通信技术领域,能够解决现有上下行频谱的划分方式导致系统不能充分利用频谱资源,限制了下行数据传输速率和系统的性能的问题。本发明的方法包括:根据频谱边界,估计第一类数据的传输速率与第二类数据的传输速率间的当前比值;当所述当前比值小于第一目标比值时,调节所述第一频谱和所述第二频谱之间的边界,使所述第一类数据的传输速率增大;按照调节后的频谱边界确定更新后的第一频谱和更新后的第二频谱。本发明适用于数字用户线路接入复用器。

Description

频谱划分的方法及装置 技术领域
本发明涉及通信技术领域, 尤其涉及一种频谱划分的方法及装置。
背景技术
xDSL ( X Digital Subscriber Line, 数字用户线路总称)技术是一种在 电话双绞线, 即无屏蔽双绞线上传输高速数据的技术, 它包括基带传输的 DSL
( Digital Subscriber Line, 数字用户线路) 和还包括通带传输的 DSL。 通 带传输的 DSL利用频分复用技术使得 xDSL与传统电话业务共存于同一对双绞 线上, 其中 xDSL占据高频段, 传统电话业务占用 4KHz以下基带频段, 传统电 话业务信号与 xDSL信号通过分离器分离。 通带传输的 xDSL采用离散多音频调 制, 提供多路 xDSL接入的系统叫做 DSLAM (Digital Subscriber Line Access Multiplexer, DSL接入复用器), 其系统参考模型如图 1所示, xTU-R为远端设 备, xTU-C为局端设备。 由于电磁感应原理, DSLAM接入的多路信号之间, 会 相互产生干扰, 称为串音。 串音包括近端串音和远端串音, 近端串音和远端 串音能量都会随着频段升高而增强。 现有的 xDSL技术采用上下行信道采用 FDD
( Frequency Division Multiplexing, 频分复用), 近端串音对系统的性能 的影响可以忽略不计。 ITU-T ( International Telecommunication Union Telecommunication Standardization Sector国际电信联盟电信标准化部) 已经制定 G.993.5标准, 通过矢量化 Vectoring技术在 CO ( Central Office, 中心局)端进行联合收发来 ·ί氐消远端串音。 在理想的情况下, 通过 Vectoring 技术消除远端串音后, 每条线路的速率可以达到其在不受任何串音下的速率。 那么对于 FDD系统, 频谱带宽一定, 上下行速率总和也一定, 上下行频段规划 决定了上下行速率的分配。 如图 2所示, 为 0-30MHZ的 VDSL2 ( Far End Cross-Talk Cancellation, 串音抵消)在北美地区的频段划分。 DSLAM根据 终端与网络之间, 通过划分的上行和下行频谱进行上下行数据传输。 现有技术中至少存在如下问题: 现有固定的频段划分并不能保证所有的 用户都能达到预期的上下行速率比。 随着 IPTV ( Internet Protoco l Televi s ion , 网络协定电视)、 3D ( Three Dimens ions , 3维) 高清等视频业 务的开展, 用户对下行速率的需求急剧增加, 上行速率的需求相比下行速率 的需求低很多。 当前运营商开通上下行速率比一般都在 1: 4以上, 有的甚至达 到了 1: 9 , 也就是说, 即使开通 100M速率的下行业务, 上行速率最多需要 25M 速率, 多余的频谱资源分配给上行就浪费了, 则此时运营商对上下行频谱的 划分不合理, 系统不能充分利用频谱资源, 限制了下行数据传输速率和系统 的性能。
发明内容
本发明的实施例提供一种频谱划分的方法及装置, 能够解决现有上下行 频谱的划分方式导致系统不能充分利用频谱资源, 限制了下行数据传输速率 和系统的性能的问题。
为达到上述目的, 本发明的实施例采用如下技术方案:
第一方面, 本发明的实施例提供一种频谱划分的方法, 包括:
根据频谱边界, 估计第一类数据的传输速率与第二类数据的传输速率间 的当前比值, 所述频谱边界为在频谱上, 第一频谱和第二频谱之间的边界, 所述第一频谱用于传输所述第一类数据, 所述第二频谱用于传输所述第二类 数据;
当所述当前比值小于第一目标比值时, 调节所述第一频谱和所述第二频 谱之间的边界, 使所述第一类数据的传输速率增大, 所述第一目标比值为预 先确定的;
按照调节后的频谱边界确定更新后的第一频谱和更新后的第二频谱。 结合第一方面, 在第一方面的第一种可能的实现方式中, 在当所述当前 比值小于第一目标比值时, 所述调节所述第一频谱和所述第二频谱之间的边 界之前, 所述方法还包括:
获取各业务的所述第一类数据的目标传输速率与所述第二类数据的目标 传输速率间的第二目标比值;
将所述各业务的第二目标比值中的最大值确定为所述第一目标比值。 结合第一方面, 在第一方面的第二种可能的实现方式中, 在所述根据频 谱边界, 估计第一类数据的传输速率与第二类数据的传输速率间的当前比值 之前, 所述方法还包括:
获取线路参数信息;
设置所述第一频段和所述第二频段的默认值; 其中, 所述线路参数信息 和所述默认值用于估计所述当前比值。
结合第一方面, 在第一方面的第三种可能的实现方式中, 在所述调节所 述第一频谱和所述第二频谱之间的边界, 使所述第一类数据的传输速率增大 的同时, 使所述第二类数据的传输速率减小;
则在所述当所述当前比值小于第一目标比值时, 调节所述第一频谱和所 述第二频谱之间的边界之后, 所述方法还包括:
根据调节后的频谱边界, 重新估计第一类数据调节后的传输速率与第二 类数据调节后的传输速率间的比值, 并将所述比值作为更新后的当前比值。
结合第一方面, 在第一方面的第四种可能的实现方式中, 所述方法还包 括:
当所述当前比值不小于所述第一目标比值时, 保持所述频谱边界。
结合第一方面, 在第一方面的第五种可能的实现方式中, 在所述按照调 节后的频谱边界确定更新后的第一频谱和更新后的第二频谱之后, 所述方法 还包括: 域确定为重叠频谱区间;
通过在线重配置 0LR技术将所述重叠频谱区间内全部用户的比特进行重 新分配。 第二方面, 本发明的实施例提供一种频谱划分的装置, 包括: 估计单元, 用于根据频谱边界, 估计第一类数据的传输速率与第二类数 据的传输速率间的当前比值, 所述频谱边界为在频谱上, 第一频谱和第二频 谱之间的边界, 所述第一频谱用于传输所述第一类数据, 所述第二频谱用于 传输所述第二类数据;
调节单元, 用于当所述当前比值小于第一目标比值时, 调节所述第一频 谱和所述第二频谱之间的边界, 使所述第一类数据的传输速率增大, 所述第 一目标比值为预先确定的;
确定单元, 用于按照调节后的频谱边界确定更新后的第一频谱和更新后 的第二频谱。
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述装置还包 括:
获取单元, 用于获取各业务的所述第一类数据的目标传输速率与所述第 二类数据的目标传输速率间的第二目标比值;
所述确定单元还用于将所述各业务的第二目标比值中的最大值确定为所 述第一目标比值。
结合第二方面的第一种可能的实现方式, 在第二方面的第二种可能的实 现方式中, 所述获取单元还用于获取线路参数信息; 所述装置还包括:
设置单元, 用于设置所述第一频段和所述第二频段的默认值; 其中, 所 述线路参数信息和所述默认值用于估计所述当前比值。
结合第二方面, 在第二方面的第三种可能的实现方式中, 在所述调节所 述第一频谱和所述第二频谱之间的边界, 使所述第一类数据的传输速率增大 的同时, 使所述第二类数据的传输速率减小;
则所述估计单元还用于根据调节后的频谱边界, 重新估计第一类数据调 节后的传输速率与第二类数据调节后的传输速率间的比值, 并将所述比值作 为更新后的当前比值。
结合第二方面, 在第二方面的第四种可能的实现方式中, 所述装置还包 括: 保持单元, 用于当所述当前比值不小于所述第一目标比值时, 保持所述 频谱边界。
结合第二方面, 在第二方面的第五种可能的实现方式中, 所述确定单元 区域确定为重叠频谱区间; 所述装置还包括:
分配单元, 用于通过在线重配置 0LR技术将所述重叠频谱区间内全部用户 的比特进行重新分配。 本发明实施例提供的频谱划分的方法及装置, 本发明中数字用户线路接 入复用器根据频谱边界, 估计第一类数据的传输速率与第二类数据的传输速 率间的当前比值; 当当前比值小于第一目标比值时, 调节第一频谱和第二频 谱之间的边界, 使所述第一类数据的传输速率增大, 按照调节后的频谱边界 确定更新后的第一频谱和更新后的第二频谱。 如此根据系统中第一类数据的 传输速率与第二类数据的传输速率间的第一目标比值, 来调整频谱的边界, 以提高下行数据传输的速率, 从而充分利用频谱资源, 提高系统的性能。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例中所需 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它的附图。
图 1为现有技术提供的系统模型示意图;
图 2为现有技术提供的北美地区的频段划分示意图;
图 3为本发明一实施例提供的方法流程图;
图 4为本发明又一实施例提供的方法流程图;
图 5为本发明又一实施例提供的截止频率移动示意图;
图 6为本发明又一实施例提供的方法流程图;
图 7、 图 8为本发明又一实施例提供的装置结构示意图; 图 9为本发明又一实施例提供的装置结构示意图。
具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 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。 本发明一实施例提供一种频谱划分的方法, 用于数字用户线路接入复用 器, 如图 3所示, 所述方法包括:
101、 数字用户线路接入复用器根据频谱边界, 估计第一类数据的传输速 率与第二类数据的传输速率间的当前比值。
其中, 频谱边界为在频谱上第一频谱和第二频谱之间的边界, 第一频谱 用于传输第一类数据, 第二频谱用于传输第二类数据。
可选的, 在数字用户线路接入复用器估计当前比值之前, 还要获取线路 参数信息, 用于数字用户线路接入复用器对各线路和线长的当前比值进行估 计。
进一步的, 数字用户线路接入复用器设置第一频段和第二频段的默认值, 用于估计所述当前比值。
102、 当当前比值小于第一目标比值时, 数字用户线路接入复用器调节第 一频谱和第二频语之间的边界, 使第一类数据的传输速率增大。
其中, 第一目标比值为预先确定的。
可选的, 数字用户线路接入复用器可以获取各业务的第一类数据的目标 传输速率与第二类数据的目标传输速率间的第二目标比值; 然后, 将各业务 的第二目标比值中的最大值确定为第一目标比值。
可选的, 在数字用户线路接入复用器调节第一频谱和第二频谱之间的边 界, 使第一类数据的传输速率增大的同时, 使第二类数据的传输速率减小; 则在当当前比值小于第一目标比值时, 调节第一频谱和第二频谱之间的边界 之后, 数字用户线路接入复用器还可以根据调节后的频谱边界, 重新估计第 一类数据调节后的传输速率与第二类数据调节后的传输速率间的比值, 并将 此比值作为更新后的当前比值。
可选的, 当当前比值不小于第一目标比值时, 保持频谱边界。
103、 数字用户线路接入复用器按照调节后的频谱边界确定更新后的第一 频谱和更新后的第二频谱。
进一步的, 在数字用户线路接入复用器根据目标频谱边界划分频谱后, 频语区间; 通过 OLR ( On Line Reconf igura t ion, 在线重配置)技术将所述 重叠频语区间内全部用户的比特进行重新分配。
需要说明的是, 本发明实施例中, 数字用户线路接入复用器根据第一目 标比值来划分第一频谱和第二频谱, 但数字用户线路接入复用器划分第一频 谱和第二频谱的方法并不仅限于此, 还可以通过第一类数据的传输速率与第 二类数据的传输速率间的比引申的其他条件来划分第一频谱和第二频谱, 例 如, 第一类数据的传输速率与第二类数据的传输速率可覆盖的范围 (即可到 达的最大传输距离)、 数字用户线路接入复用器的功耗、 各业务的稳定性和第 一频谱和第二频谱信噪比裕量等等, 其数据处理过程与本发明实施例相同。 具体为将上述实施例中的第一类数据的传输速率与第二类数据的传输速率间 的比值, 替换为覆盖范围的比值、 功耗的比值或者信噪比裕量的比值, 并且 目标比值也对应地替换, 将实际比值和目标比值进行比较后, 根据比较结果 调节频语边界以划分满足目标的第一频谱和第二频谱大小。
现有技术中, 现有固定的频段划分并不能保证所有的用户都能达到预期 的上下行速率比, 有时会对上下行频谱的划分不合理, 系统不能充分利用频 谱资源, 限制了下行数据传输速率和系统的性能。 本发明实施例中数字用户 线路接入复用器根据频谱边界, 估计第一类数据的传输速率与第二类数据的 传输速率间的当前比值; 当当前比值小于第一目标比值时, 调节第一频谱和 第二频谱之间的边界, 使所述第一类数据的传输速率增大, 按照调节后的频 谱边界确定更新后的第一频谱和更新后的第二频谱。 如此根据系统中第一类 数据的传输速率与第二类数据的传输速率间的第一目标比值, 来调整频谱的 边界, 以提高下行数据传输的速率, 从而充分利用频谱资源, 提高系统的性
•6匕
匕。 本发明又一实施例提供一种频谱划分的方法, 用于数字用户线路接入复 用器, 如图 4所示, 所述方法包括:
201、 数字用户线路接入复用器获取各业务的上行速率与下行速率间的比 值。
其中, 数字用户线路接入复用器从运营商 OSS ( Opera t i on Suppor t Sys tem, 运营支撑系统) 业务发放系统中获取各个业务的上行速率与下行速 率间的比值。 上行速率即为上行数据的传输速率, 下行速率即为下行数据的 传输速率。
需要说明的是, 数字用户线路接入复用器可以直接从 0SS中得到比值, 或 者通过其他信息推算出, 例如, 上行频段需要为用户传输指令信息, 所以上 行频段可以根据指令信息分配, 进一步得出上下行速率间的比值。
202、 数字用户线路接入复用器将各业务的比值中的最大值确定为目标比 值。
其中, 数字用户线路接入复用器从获取的各业务上行速率与下行速率间 的比值中, 选取最大值作为目标比值, 如此得出的目标比值可以满足所有业 务的需要。
203、 数字用户线路接入复用器获取运营商的线路操作参数和线路长度统 计信息。
其中, 数字用户线路接入复用器从 0SS中获取运营商的线路操作参数和线 路长度统计信息。
204、 数字用户线路接入复用器设置已经划分频谱的使用方向默认值。 其中, 对于站点中的频谱, 已经通过固定的划分方法对频谱进行了划分, 数字用户线路接入复用器根据划分频谱的使用方向设置默认值, 以便于对当 前划分频谱的数据传输情况进行仿真。 例如, 将下行频段设置默认值为 0 , 将 上行方向设置默认值为 1。
205、 数字用户线路接入复用器估计上下行数据传输的速率比。
其中, 数字用户线路接入复用器根据获得的线路信息, 和当前划分频谱 的数据传输仿真结果, 估计不同线长下, 上下行数据传输的速率比。
206、 数字用户线路接入复用器判断估计的上下行数据传输速率比是否大 于目标比值,若估计的上下行数据传输速率比大于目标比值,则执行步骤 207 ; 若估计的上下行数据传输速率比不大于目标比值, 则执行步骤 210。
其中, 数字用户线路接入复用器在步骤 205估计上下行数据传输速率比 后, 与目标比值进行比较, 判断估计的上下行数据传输速率比是否大于目标 比值。 若估计的上下行数据传输速率比大于目标比值, 说明上行速率有盈余, 则执行步骤 207 ; 若估计的上下行数据传输速率比不大于目标比值, 则不用调 整频段的划分, 则执行步骤 210。
207、 数字用户线路接入复用器移动上行频段的截止频率, 使上行频率所 占的频段减小。
其中, 数字用户线路接入复用器移动上行频段的截止频率, 使上行频率 所占的频段减小, 如图 5所示, 2为在 1基础上移动后的效果, US指上行频段, DS指下行频段。
需要说明的是, 数字用户线路接入复用器调节频谱上下行所占频段的方 式还可以为移动上行频段的起始频率等方式, 在此不做限定。
208、 数字用户线路接入复用器估计上下行数据传输的速率比。
209、 数字用户线路接入复用器判断估计的上下行数据传输速率比是否大 于目标比值,若估计的上下行数据传输速率比大于目标比值,则执行步骤 207 ; 若估计的上下行数据传输速率比不大于目标比值, 则执行步骤 210。
210、 数字用户线路接入复用器根据频段截止频率, 生成该站点新的频谱 规划。 需要说明的是, 本发明实施例中, 数字用户线路接入复用器根据上下行 数据传输的速率比来划分上下行频谱, 但数字用户线路接入复用器划分上下 行频谱的方法并不仅限于此, 还可以通过上下行数据传输的速率比可以引申 的其他条件来划分上下行频谱, 例如, 上下行数据传输的速率可覆盖的范围 (即可到达的最大传输距离)、 数字用户线路接入复用器的功耗、 各业务的稳 定性和上下行频谱信噪比裕量等等, 其数据处理过程与本发明实施例相同。 具体为将上述实施例中的上下行数据传输的速率间的比值, 替换为覆盖范围 的比值、 功耗的比值或者信噪比裕量的比值, 并且目标比值也对应地替换, 将实际比值和目标比值进行比较后, 根据比较结果调节频谱边界以划分满足 目标的第一频谱和第二频谱大小。
现有技术中, 现有固定的频段划分并不能保证所有的用户都能达到预期 的上下行速率比, 有时会对上下行频谱的划分不合理, 系统不能充分利用频 谱资源, 限制了下行数据传输速率和系统的性能。 本发明实施例中数字用户 线路接入复用器确定上下行速率间的目标比值, 根据初始频谱边界, 估计上 下行速率间的比值; 当上下行速率间的比值小于目标比值时, 调节上下行频 谱之间的边界, 直到上下行速率间的比值不小于目标比值, 按照调节后的频 谱边界划分上下行频谱。 如此根据系统中上下行数据传输速率间的目标比值, 来调整频谱的边界, 以提高下行数据传输的速率, 从而充分利用频谱资源, 提高系统的性能。 由于用户的业务速率需求在不断提升, 初始配置的频谱规划有时不能在 满足用户的需求, 但是由于用户已经开通业务, 如果要切换到新的频谱规划, 需要中断全部业务, 因为新的频谱规划和旧的频谱规划会产生重叠的部分, 这部分频段会产生严重的近端串扰导致用户掉线, 影响用户使用, 投诉增多。 本发明又一实施例提供一种频谱划分的方法, 用于数字用户线路接入复用器, 在将如图 4所示方法划分的上下行频谱实际应用后, 如图 6所示, 所述方法包 括: 301、 数字用户线路接入复用器确定新频语规划与旧频语规划的重叠频谱 区间。
其中, 在步骤 207中, 数字用户线路接入复用器均对频谱的划分进行了调 整, 则新频谱规划为步骤 210中的频谱规划, 旧频谱规划为没有经过步骤 207 调整的频谱规划。 数字用户线路接入复用器将确定新频谱规划与旧频谱规划 的重叠频谱区间。
302、 数字用户线路接入复用器利用在线重配置技术将重叠频谱区间内全 部用户的比特分配置为 0。
其中, 数字用户线路接入复用器将重叠频谱区间内全部用户的比特分配 置为 0 , 表示重叠频谱区间内暂不传递信息。
303、 数字用户线路接入复用器利用在线重配置技术重新进行比特分配。 其中, 利用在线重配置 0LR技术重新进行比特分配, 直到上下行都达到业 务目标速率或者重叠频谱区间的子载波都已经分配完毕, 则停止分配。
需要说明的是, 如果上下行达到业务目标速率, 还有未被分配的频谱区 间, 在下一次业务升级时再进行重新分配。
304、数字用户线路接入复用器根据分配结果,存储该站点新的频语规划。 需要说明的是, 步骤 304为可选步骤, 数字用户线路接入复用器存储该站 点新的频语规划可以方便后续频谱的划分。
基于如图 4所示的方法, 本发明实施例中在数字用户线路接入复用器在通 过图 4所示方法划分的频谱实际应用后, 根据上下行实时传输的速率来实时调 节上下行频谱的界线。 如此根据系统中上下行数据的具体传输状况, 来合理 的划分上下行频谱, 不仅充分利用频谱资源, 提高系统的性能, 而且在对频 谱进行划分时, 不需要中断业务, 避免对用户使用造成影响。 本发明又一实施例提供一种频谱划分的装置 50 , 如图 7所示, 所述装置 50 包括:
估计单元 51 , 用于根据频谱边界, 估计第一类数据的传输速率与第二类 数据的传输速率间的当前比值, 所述频谱边界为在频谱上, 第一频谱和第二 频谱之间的边界, 所述第一频谱用于传输所述第一类数据, 所述第二频谱用 于传输所述第二类数据;
调节单元 52 , 用于当所述当前比值小于第一目标比值时, 调节所述第一 频谱和所述第二频谱之间的边界, 使所述第一类数据的传输速率增大, 所述 第一目标比值为预先确定的;
确定单元 53 , 用于按照调节后的频谱边界确定更新后的第一频谱和更新 后的第二频谱。
进一步的, 如图 8所示, 所述装置 50还可以包括:
获取单元 54 , 用于获取各业务的所述第一类数据的目标传输速率与所述 第二类数据的目标传输速率间的第二目标比值。
进一步的, 所述确定单元 53还用于将所述各业务的第二目标比值中的最 大值确定为所述第一目标比值。
进一步的, 所述获取单元 54还用于获取线路参数信息。
进一步的, 如图 8所示, 所述装置 50还可以包括:
设置单元 55 , 用于设置所述第一频段和所述第二频段的默认值; 其中, 所述线路参数信息和所述默认值用于估计所述当前比值。
进一步的, 所述估计单元 51还用于根据调节后的频谱边界, 重新估计第 一类数据调节后的传输速率与第二类数据调节后的传输速率间的比值, 并将 所述比值作为更新后的当前比值。
进一步的, 如图 8所示, 所述装置 50还可以包括:
保持单元 56 , 用于当所述当前比值不小于所述第一目标比值时, 保持所 述频谱边界。 至所述目标频谱边界经过的频谱区域确定为重叠频谱区间。
进一步的, 如图 8所示, 所述装置 50还可以包括:
分配单元 57 , 用于通过在线重配置 0LR技术将所述重叠频谱区间内全部用 户的比特进行重新分配。
现有技术中, 现有固定的频段划分并不能保证所有的用户都能达到预期 的上下行速率比, 有时会对上下行频谱的划分不合理, 系统不能充分利用频 谱资源, 降低了下行数据传输速率和系统的性能。 本发明实施例中装置 50根 据频谱边界, 估计第一类数据的传输速率与第二类数据的传输速率间的当前 比值; 当当前比值小于第一目标比值时, 调节第一频谱和第二频谱之间的边 界, 使所述第一类数据的传输速率增大, 按照调节后的频谱边界确定更新后 的第一频谱和更新后的第二频谱。 如此根据系统中第一类数据传输速率与第 二类数据传输速率间的第一目标比值, 来调整频谱的边界, 以提高下行数据 传输的速率, 从而充分利用频谱资源, 提高系统的性能。 本发明又一实施例提供一种频谱划分的装置 60 , 如图 9所示, 所述装置 60 包括:
处理器 61 , 用于根据频谱边界, 估计第一类数据的传输速率与第二类数 据的传输速率间的当前比值, 所述频谱边界为在频谱上, 第一频谱和第二频 谱之间的边界, 所述第一频谱用于传输所述第一类数据, 所述第二频谱用于 传输所述第二类数据; 以及, 用于当所述当前比值小于第一目标比值时, 调 节所述第一频谱和所述第二频谱之间的边界, 使所述第一类数据的传输速率 增大, 所述第一目标比值为预先确定的; 以及, 用于按照调节后的频谱边界 确定更新后的第一频谱和更新后的第二频谱。
进一步的, 所述处理器 61还用于获取各业务的所述第一类数据的目标传 输速率与所述第二类数据的目标传输速率间的第二目标比值; 以及, 用于将 所述各业务的第二目标比值中的最大值确定为所述第一目标比值。
进一步的, 所述处理器 61还用于获取线路参数信息; 以及, 用于设置所 述第一频段和所述第二频段的默认值; 其中, 所述线路参数信息和所述默认 值用于估计所述当前比值。
进一步的, 所述处理器 61还用于根据调节后的频谱边界, 重新估计第一 类数据调节后的传输速率与第二类数据调节后的传输速率间的比值, 并将所 述比值作为更新后的当前比值。
进一步的, 所述处理器 61还用于当所述当前比值不小于所述第一目标比 值时, 保持所述频谱边界。 所述目标频谱边界经过的频谱区域确定为重叠频谱区间; 以及, 用于通过在 线重配置 0LR技术将所述重叠频谱区间内全部用户的比特进行重新分配。
现有技术中, 现有固定的频段划分并不能保证所有的用户都能达到预期 的上下行速率比, 有时会对上下行频谱的划分不合理, 系统不能充分利用频 谱资源, 降低了下行数据传输速率和系统的性能。 本发明实施例中装置 60根 据频谱边界, 估计第一类数据的传输速率与第二类数据的传输速率间的当前 比值; 当当前比值小于第一目标比值时, 调节第一频谱和第二频谱之间的边 界, 使所述第一类数据的传输速率增大, 按照调节后的频谱边界确定更新后 的第一频谱和更新后的第二频谱。 如此根据系统中第一类数据传输速率与第 二类数据传输速率间的第一目标比值, 来调整频谱的边界, 以提高下行数据 传输的速率, 从而充分利用频谱资源, 提高系统的性能。
本发明实施例提供的频谱划分的装置可以实现上述提供的方法实施例, 具体功能实现请参见方法实施例中的说明, 在此不再赘述。 本发明实施例提 供的频谱划分的方法及装置可以适用于数字用户线路接入复用器, 但不仅限 于此。
本说明书中的各个实施例均采用递进的方式描述, 各个实施例之间相同 相似的部分互相参见即可, 每个实施例重点说明的都是与其他实施例的不同 之处。 尤其, 对于设备实施例而言, 由于其基本相似于方法实施例, 所以描 述得比较简单, 相关之处参见方法实施例的部分说明即可。
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流 程, 是可以通过计算机程序来指令相关的硬件来完成, 所述的程序可存储于 一计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法的实施 例的流程。其中,所述的存储介质可为磁碟、光盘、只读存储记忆体( Read-On ly Memory , ROM )或随机存储记忆体 ( Random Acces s Memory , RAM )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 想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保 护范围应该以权利要求的保护范围为准。

Claims

权利要求 书
1、 一种频谱划分的方法, 其特征在于, 包括:
根据频谱边界, 估计第一类数据的传输速率与第二类数据的传输速率间的 当前比值, 所述频谱边界为在频谱上, 第一频谱和第二频谱之间的边界, 所述 第一频谱用于传输所述第一类数据, 所述第二频谱用于传输所述第二类数据; 当所述当前比值小于第一目标比值时, 调节所述第一频谱和所述第二频谱 之间的边界, 使所述第一类数据的传输速率增大, 所述第一目标比值为预先确 定的;
按照调节后的频谱边界确定更新后的第一频谱和更新后的第二频谱。
2、 根据权利要求 1所述的方法, 其特征在于, 在当所述当前比值小于第一 目标比值时, 所述调节所述第一频谱和所述第二频谱之间的边界之前, 所述方 法还包括:
获取各业务的所述第一类数据的目标传输速率与所述第二类数据的目标传 输速率间的第二目标比值;
将所述各业务的第二目标比值中的最大值确定为所述第一目标比值。
3、 根据权利要求 1所述的方法, 其特征在于, 在所述根据频谱边界, 估计 第一类数据的传输速率与第二类数据的传输速率间的当前比值之前, 所述方法 还包括:
获取线路参数信息;
设置所述第一频段和所述第二频段的默认值; 其中, 所述线路参数信息和 所述默认值用于估计所述当前比值。
4、 根据权利要求 1所述的方法, 其特征在于, 在所述调节所述第一频谱和 所述第二频谱之间的边界, 使所述第一类数据的传输速率增大的同时, 使所述 第二类数据的传输速率减小;
则在所述当所述当前比值小于第一目标比值时, 调节所述第一频谱和所述 第二频语之间的边界之后, 所述方法还包括:
根据调节后的频谱边界, 重新估计第一类数据调节后的传输速率与第二类 数据调节后的传输速率间的比值, 并将所述比值作为更新后的当前比值。
5、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括:
当所述当前比值不小于所述第一目标比值时, 保持所述频谱边界。
6、 根据权利要求 1所述的方法, 其特征在于, 在所述按照调节后的频谱边 界确定更新后的第一频谱和更新后的第二频语之后, 所述方法还包括: 确定为重叠频谱区间;
通过在线重配置 0LR技术将所述重叠频谱区间内全部用户的比特进行重新 分配。
7、 一种频谱划分的装置, 其特征在于, 包括:
估计单元, 用于根据频谱边界, 估计第一类数据的传输速率与第二类数据 的传输速率间的当前比值, 所述频谱边界为在频谱上, 第一频谱和第二频谱之 间的边界, 所述第一频谱用于传输所述第一类数据, 所述第二频谱用于传输所 述第二类数据;
调节单元, 用于当所述当前比值小于第一目标比值时, 调节所述第一频谱 和所述第二频谱之间的边界, 使所述第一类数据的传输速率增大, 所述第一目 标比值为预先确定的;
确定单元, 用于按照调节后的频谱边界确定更新后的第一频谱和更新后的 第二频谱。
8、 根据权利要求 7所述的装置, 其特征在于, 所述装置还包括:
获取单元, 用于获取各业务的所述第一类数据的目标传输速率与所述第二 类数据的目标传输速率间的第二目标比值;
所述确定单元还用于将所述各业务的第二目标比值中的最大值确定为所述 第一目标比值。
9、 根据权利要求 8所述的装置, 其特征在于, 所述获取单元还用于获取线 路参数信息; 所述装置还包括:
设置单元, 用于设置所述第一频段和所述第二频段的默认值; 其中, 所述 线路参数信息和所述默认值用于估计所述当前比值。
10、 根据权利要求 7所述的装置, 其特征在于, 在所述调节所述第一频谱和 所述第二频谱之间的边界, 使所述第一类数据的传输速率增大的同时, 使所述 第二类数据的传输速率减小;
则所述估计单元还用于根据调节后的频谱边界, 重新估计第一类数据调节 后的传输速率与第二类数据调节后的传输速率间的比值, 并将所述比值作为更 新后的当前比值。
11、 根据权利要求 7所述的装置, 其特征在于, 所述装置还包括: 保持单元, 用于当所述当前比值不小于所述第一目标比值时, 保持所述频 谱边界。
12、 根据权利要求 7所述的装置, 其特征在于, 所述确定单元还用于将频谱 频谱区间; 所述装置还包括:
分配单元, 用于通过在线重配置 0LR技术将所述重叠频谱区间内全部用户的 比特进行重新分配。
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CN112737632B (zh) * 2020-12-24 2021-12-17 北京邮电大学 一种自适应跳频频点替换方法及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101237398A (zh) * 2007-02-02 2008-08-06 华为技术有限公司 一种提高vdsl稳定性的方法及其系统
CN101562487A (zh) * 2008-04-18 2009-10-21 华为技术有限公司 频谱优化方法、装置及数字用户线系统
US20110150057A1 (en) * 2009-12-17 2011-06-23 At&T Intellectual Property I, L.P. Monitoring Non-Managed Wire Pairs to Improve Dynamic Spectrum Management Performance
WO2013165429A1 (en) * 2012-05-03 2013-11-07 Adaptive Spectrum Signal Alignment, Inc. Apparatus, systems and methods for dsm energy management

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101237398A (zh) * 2007-02-02 2008-08-06 华为技术有限公司 一种提高vdsl稳定性的方法及其系统
CN101562487A (zh) * 2008-04-18 2009-10-21 华为技术有限公司 频谱优化方法、装置及数字用户线系统
US20110150057A1 (en) * 2009-12-17 2011-06-23 At&T Intellectual Property I, L.P. Monitoring Non-Managed Wire Pairs to Improve Dynamic Spectrum Management Performance
WO2013165429A1 (en) * 2012-05-03 2013-11-07 Adaptive Spectrum Signal Alignment, Inc. Apparatus, systems and methods for dsm energy management

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3116164A4 *

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CN105379182A (zh) 2016-03-02

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