CN108259276B - Method and device for controlling ultra-wideband copper wire access technology G.FAST port - Google Patents
Method and device for controlling ultra-wideband copper wire access technology G.FAST port Download PDFInfo
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- CN108259276B CN108259276B CN201611235226.5A CN201611235226A CN108259276B CN 108259276 B CN108259276 B CN 108259276B CN 201611235226 A CN201611235226 A CN 201611235226A CN 108259276 B CN108259276 B CN 108259276B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 25
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/32—Reducing cross-talk, e.g. by compensating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
- H04L41/0886—Fully automatic configuration
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Abstract
The invention discloses a method and a device for controlling an ultra-wideband copper wire access technology G.FAST port, which can improve the stability of a line and the satisfaction degree of a user by closing an interfered frequency band and automatically opening a VDSL frequency band of the G.FAST port according to the VDSL interference range by detecting the interference range of an ultra-high speed digital user line of the G.FAST port and automatically adjusting whether the VDSL interference frequency band of the G.FAST port is opened or not, and can also automatically open the VDSL frequency band after the VDSL interference in the line is eliminated, thereby improving the link establishment rate of the G.FAST and finally reducing the maintenance workload of an operator, thereby effectively solving the problem that the workload of the operator needs to manually modify whether the VDSL frequency band of the G.FAST line is opened or not and increasing the workload of the operator in the prior art.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for controlling an ultra-wideband copper wire access technology G.FAST port.
Background
The technology is rapidly developed, the data service usage is increasing day by day, the traditional VDSL (Very High Speed Digital Subscriber Line), ADSL (Asymmetric Digital Subscriber Line) and Vectoring technologies cannot meet the requirement of the user for bandwidth, so that g.fsat arises, the existing communication port is compatible with g.fast Line and VDSL Line, the setting mode not only keeps the original copper wire access, does not need to additionally deploy optical fiber in the user home, but also can increase the bandwidth to 1 Gbps. Because the frequency band of the G.FAST line is increased from 30MHz of VDSL to 106MHz/212MHz, the G.FAST line and the VDSL line have overlapping frequency band below 30MHz, and because the interference existing in the overlapping frequency band is very strong, the stability of the line is poor, and the satisfaction degree of the user is reduced.
To solve this problem, operators need to know the access mode in a specific Digital Subscriber Line (DSL) Line in a transmission cable in advance before deploying g.fast equipment. If VDSL CPE access exists, the VDSL frequency band is switched off. If there is no VDSL CPE access, the operator will open the VDSL band in order to increase the g.fast access rate. If the g.fast Equipment is deployed, the operator does not consider access of a VDSL Customer end device (CPE) and some subsequent users connect the VDSL CPE, and if the VDSL band is closed without reconfiguration, errors or links may be caused on the g.fast line due to interference.
That is, when an existing operator deploys g.fast equipment, it is necessary to know in advance whether VDSL interference exists on a transmission line, and if VDSL interference exists, additional configuration is performed to close the VDSL band. In case the VDSL CPE on the line is not used anymore afterwards, the g.fast line configuration is modified again manually, which increases the operator workload significantly.
Disclosure of Invention
The invention provides a method and a device for controlling an ultra-wideband copper wire access technology G.FAST port, which aim to solve the problems that in the prior art, an operator needs to manually modify the opening and closing of a VDSL frequency band of a G.FAST line, and the workload of the operator is increased.
The invention provides a method for controlling an ultra-wideband copper wire access technology G.FAST port, which comprises the following steps: detecting the VDSL interference range of an ultra-high-speed digital user line of a G.FAST port of an ultra-wideband copper wire access technology; and determining to close or open the VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port.
Further, the detecting a VDSL interference range of the g.fast port of the ultra-wideband copper access technology specifically includes:
acquiring a background noise value of a G.FAST port;
and determining the G.FAST port with interference according to the background noise, and determining the range of the interference frequency band of the G.FAST port with interference.
Further, the acquiring a background noise value of the g.fast port specifically includes:
acquiring background noise values of all G.FAST ports through round training;
or,
and acquiring a background noise value of the preset G.FAST port by random selection.
Further, the determining, according to the background noise, the g.fast port with interference includes:
comparing the background noise value of the G.FAST port with a preset noise threshold value, and determining that VDSL interference exists in the G.FAST port when the background noise value exceeds the noise threshold value.
Further, the determining the range of the g.fast port interference frequency band where interference exists specifically includes:
and determining the range of the G.FAST port interference frequency band with interference by a filtering window mode.
Further, the determining, according to the VDSL interference range and the chain establishment condition of the g.fast port, to close or open the VDSL interference band of the g.fast port, and controlling the closing or opening of the VDSL interference band of the g.fast port specifically includes:
closing the frequency band of VDSL interference of the G.FAST port without the built link;
opening a VDSL non-interference frequency band of a G.FAST port of the established link;
and when the G.FAST port drops the link, triggering to close the VDSL interference frequency band of the G.FAST port.
Further, after determining to close the VDSL interference band of the g.fast port according to the VDSL interference range and the chain establishment condition of the g.fast port, before controlling to close the VDSL interference band of the g.fast port, the method specifically includes:
judging that the VDSL interference frequency band of the pre-closed G.FAST port is in use, if so, updating the flag bit of the G.FAST port, and triggering to close the VDSL interference frequency band of the G.FAST port when the G.FAST port is out of link.
Another aspect of the present invention provides a device for adaptively adjusting g.fast port control of ultra-wideband copper access technology, comprising:
the detection unit is used for detecting the interference range of the VDSL of the ultra-high-speed digital user line of the G.FAST port of the ultra-wideband copper wire access technology;
and the control unit is used for determining to close or open the VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port.
Further, the detection unit further includes:
the acquisition module is used for acquiring a background noise value of the G.FAST port;
and the analysis module is used for determining the G.FAST port with interference according to the background noise and determining the range of the interference frequency band of the G.FAST port with interference.
Further, the obtaining module is further configured to obtain a background noise value of each g.fast port through round training; or, acquiring the background noise value of the preset G.FAST port by random selection.
Further, the analysis module is further configured to compare a background noise value of the g.fast port with a preset noise threshold, and determine that VDSL interference exists in the g.fast port when the background noise value exceeds the noise threshold.
Further, the analysis module is further configured to determine, in a filtering window manner, a range of an interference frequency band of the g.fast port where the interference exists.
Further, the control unit is further configured to close a frequency band of VDSL interference of the g.fast port of the un-established chain, open a VDSL non-interference frequency band of the g.fast port of the established chain, have a frequency band of VDSL interference on the g.fast port of the established chain, and trigger closing of the frequency band of VDSL interference of the g.fast port when the g.fast port is out of the chain.
Further, the control unit is further configured to determine to close or open the VDSL interference band of the g.fast port according to the VDSL interference range and the link establishment condition of the g.fast port, control to close or open the VDSL interference band of the g.fast port, and before controlling to close the VDSL interference band of the g.fast port, determine that the VDSL interference band of the g.fast port is being used, if yes, update the flag bit of the g.fast port, and trigger to close the VDSL interference band of the g.fast port when the g.fast port is dropped.
The invention has the following beneficial effects:
the invention can improve the stability of the Line and the satisfaction degree of users by closing the interfered frequency band and automatically opening the VDSL frequency band after the VDSL interference in the Line is eliminated by detecting the interference range of the ultra-High Speed Digital Subscriber Line (VDSL) of the G.FAST port and automatically adjusting whether the VDSL interference frequency band of the G.FAST port is opened or not according to the VDSL interference range, namely, the invention can improve the stability of the Line and the satisfaction degree of the users by closing the interfered frequency band and automatically open the VDSL frequency band so as to improve the link establishment rate of the G.FAST and finally reduce the maintenance workload of an operator, thereby effectively solving the problem that the operator needs to manually modify whether the VDSL frequency band of the G.FAST Line is opened or not and increasing the workload of the operator in the prior art.
Drawings
Fig. 1 is a schematic flowchart of a method for adaptively adjusting g.fast port control of ultra-wideband copper access technology according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a process of acquiring an interfered frequency band to be adjusted under a communication port according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the filtering window method for determining the VDSL interference band according to the embodiment of the present invention;
fig. 4 is a flowchart illustrating the operation of controlling and adjusting the opening of the VDSL interference band of the g.fast port according to the embodiment of the present invention;
fig. 5 is a schematic flow chart of the GFAS port starting and closing the VDSL interference band according to the embodiment of the present invention;
fig. 6 is a flowchart illustrating a g.fast port dropping and re-establishing a link according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for adaptively adjusting g.fast port control of ultra-wideband copper access technology according to an embodiment of the present invention.
Detailed Description
In order to solve the problem that operators need to manually modify whether a VDSL frequency band of a G.FAST Line is opened or not and increase the workload of the operators in the prior art, the invention provides a method and a device for adaptively adjusting the control of a G.FAST port of an ultra-wideband copper wire access technology, the invention detects the interference range of a Very High Speed Digital Subscriber Line (VDSL) of the G.FAST port, and automatically adjust whether the VDSL interference frequency band of the G.FAST port is opened or not according to the VDSL interference range, that is, the present invention can improve the stability of the line and the satisfaction of the user by closing the interfered frequency band, and automatically open the VDSL frequency band after the VDSL interference in the line is eliminated, therefore, the G.FAST link establishment speed is improved, and the maintenance workload of an operator is finally reduced, so that the problems that in the prior art, the operator needs to manually modify the VDSL frequency band of the G.FAST line to be opened or not, and the workload of the operator is increased are effectively solved. The present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Method embodiment
The embodiment of the invention provides a method for adaptively adjusting G.FAST port control of an ultra-wideband copper wire access technology, and referring to fig. 1, the method comprises the following steps:
s101, detecting the VDSL interference range of an ultra-high-speed digital user line of a G.FAST port of an ultra-wideband copper wire access technology;
and S102, determining to close or open the VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port.
That is, the invention can improve the stability of the line and the satisfaction of the user by detecting the VDSL interference range of the G.FAST port and automatically adjusting whether the VDSL interference frequency band of the G.FAST port is opened or not according to the VDSL interference range, namely, the invention can close the interfered frequency band, and automatically open the VDSL frequency band after the VDSL interference in the line is eliminated, thereby improving the G.FAST link establishment speed, and finally reducing the maintenance workload of the operator, thereby effectively solving the problem that the operator needs to manually modify whether the VDSL frequency band of the G.FAST line is opened or not and increasing the workload of the operator in the prior art.
Specifically, the invention reduces the maintenance work of operators by analyzing whether VDSL interference exists on each line of the current G.FAST network element and automatically opening and closing the VDSL frequency band. With the advancement of g.fast deployment, after VDSL interference in the line is eliminated, the system can automatically open the VDSL frequency band, improving the g.fast link establishment rate.
Step S101 in the embodiment of the present invention specifically includes: acquiring a background noise value of a G.FAST port; and determining the G.FAST port with interference according to the background noise, and determining the range of the interference frequency band of the G.FAST port with interference.
Specifically, the embodiment of the invention analyzes whether the VDSL working frequency band of a certain G.FAST mode link establishment port is interfered or not by acquiring the uplink background noise and the downlink background noise of the port, and determines the range of the interference frequency band.
And closing the detected interference frequency band when each port of the G.FAST equipment establishes a link next time. And if the VDSL interference frequency band is not detected, determining whether to open the closed VDSL frequency band or not when each port of the G.FAST equipment establishes a link next time according to a certain strategy.
It should be noted that, in the specific implementation, the present invention stores the programs of the above operations in a computer storage medium, and checks whether the current g.fast device has VDSL interference and an interference frequency band range, as well as history information of VDSL interference, a current link establishment state of each port, and parameter information adopted by a current link establishment by triggering each program.
The obtaining of the background noise value of the g.fast port according to the embodiment of the present invention specifically includes:
acquiring background noise values of all G.FAST ports through round training;
or,
and acquiring a background noise value of the preset G.FAST port by random selection.
That is, in the embodiment of the present invention, the analysis of the interference noise in the VDSL band is performed periodically and continuously, and the background noise of all or part of the ports that are linked up in the g.fast mode may be subjected to polling analysis at a certain time, or a certain link-up port may be randomly selected for analysis. The polling time may be set according to actual conditions, for example, set to any time point within 10 minutes to 6 hours.
It should be noted that the g.fast port in the embodiment of the present invention is a user port of a communication device supporting G9701, and the port link establishment mode is a g.fast mode.
The background noise in the embodiment of the invention is not limited to the number of ports of the G.FAST network element, nor to the uplink or the downlink, the system can periodically inquire the background noise of one or a plurality of ports, and analyze the background noise, if the G.FAST port is established to be in a VDSL mode, the range of the VDSL interference and the VDSL frequency band interference can be directly judged according to the establishment condition.
The VDSL interference band in the embodiment of the present invention is not necessarily fixed interference of the whole band of 8M, 12M, 17M, 30M, and 35M, and there may be interference starting from 2.2MHz to a certain unfixed frequency band.
In specific implementation, the noise to be analyzed in the embodiment of the present invention may be a port with the largest influence from among the uplink and downlink background noises of the multiple link establishment ports for analysis, or a background noise of a certain port is randomly selected for analysis, or uplink and downlink background noises of the multiple link establishment ports may be superimposed for analysis, or the superimposed noise is averaged for analysis, or only the uplink or downlink noise may be analyzed, or the like.
The analyzing whether VDSL interference exists at the port according to the background noise value in the embodiment of the present invention specifically includes: and comparing the background noise value with a preset noise threshold value, and determining that VDSL interference exists when the background noise value exceeds the noise threshold value.
Specifically, the preset noise threshold value in the present invention is determined by adding a certain threshold value mdB to the preset line background noise, and m is generally an empirical value, and may be a value greater than 20 dB.
The preset line background noise is usually an empirical value and is flexibly set, and white noise can be directly adopted, the empirical value of the white noise is generally less than-140 dBm/Hz, and the empirical value is generally related to the line environment of an operator, and can be for example-130 dBm/Hz or-135 dBm/Hz.
In addition, the preset line background noise can also be calculated by averaging the background noise of a certain frequency band after the line 35M.
Whether the VDSL interference frequency band exists or not can be determined by analyzing whether the average PSD level of the VDSL downlink DS1 frequency band is larger than a preset threshold value or not.
The determining the range of the interference frequency band in the embodiment of the present invention specifically includes: and determining the range of the interference frequency band in a filtering window mode.
The range of the VDSL interference band may be analyzed through a filter window, and a Power Spectral Density (PSD) average value within a width w of the filter window is greater than a certain threshold ndB to determine whether VDSL interference is received, and if the PSD average value within the filter window is less than the certain threshold, a midpoint of the filter window is considered as a boundary value of the VDSL interference band.
The embodiment of the present invention determines to close or open a VDSL interference band of a g.fast port according to a VDSL interference range and a link establishment condition of the g.fast port, and controls to close or open the VDSL interference band of the g.fast port, and specifically includes: closing the frequency band of VDSL interference of the G.FAST port without the built link; opening a VDSL non-interference frequency band of a G.FAST port of the established link; and when the G.FAST port drops the link, triggering to close the VDSL interference frequency band of the G.FAST port.
In the embodiment of the present invention, the VDSL band that is closed may be quantized based on the bandwidth detected in the foregoing, and then a certain protection margin is added, for example, the VDSL interference band detected in the foregoing is xMhz, then the VDSL band that is closed may be (x + k) Mhz, where k is generally 0 to 3Mhz, and the above-mentioned VDSL interference band xMhz may have a value range of 2.2 to 35Mhz, where x is generally quantized to 8M, 12M, 17M, 30M, and 35M according to the VDSL standard in the embodiment of the present invention, but the specific quantization value may not be limited to the quantization value given above.
In the embodiment of the invention, the port which is building the link can not drop the link and can not modify the link building parameters, when the port drops the link, whether the link building parameters are modified is determined, and the port which is building the link can temporarily reduce the bit bearing of the interfered frequency band through the Bitswap and SRA technologies, so that the influence of VDSL interference on the system is reduced. Since the VDSL mode is Frequency Division Duplex (FDD), and the g.fast mode is a Test-drive Development (TDD) mode, the g.fast port is affected by both uplink and downlink Frequency bands of the VDSL user. The short-time stability of the port of the g.fast device after bit adjustment generally has no big problem, but ES may grow or packet loss may occur for a long time, which affects certain experience of the user, but in order to avoid that the user is affected by VDSL interference handover too frequently, the link establishment parameter adjustment generally plays a role in the next link establishment of the port.
The method according to the invention will be explained and illustrated in detail below with reference to fig. 2-6:
fig. 2 is a schematic flow chart of acquiring an interfered frequency band to be adjusted under a communication port according to an embodiment of the present invention, as shown in fig. 2, including:
s201, acquiring uplink and downlink background noises on a link establishment line;
specifically, in the embodiment of the present invention, one port with the largest influence is selected from the uplink and downlink background noises of a plurality of link establishment ports for analysis, or the background noise of a certain port is randomly selected for analysis, or the uplink and downlink background noises of a plurality of link establishment ports are superimposed for analysis, or the superimposed noise is averaged for analysis;
s202, comparing the acquired background noise with a preset threshold value, and determining whether a VDSL interference frequency band exists or not;
specifically, the preset threshold is the preset line background noise plus a certain threshold mdB to determine that m is generally an empirical value, which may be a value greater than 20 dB;
whether the VDSL interference frequency band exists can be determined by analyzing whether the average PSD level of the VDSL downlink DS1 frequency band is larger than a preset threshold value;
s203: if VDSL interference exists, the range of an interference frequency band can be determined in a filtering window mode;
the range of the VDSL interference frequency band can be analyzed through a filter window, the posterior standard error PSD average value in the width w of the filter window is larger than a certain threshold ndB to determine whether the VDSL interference is received, if the PSD average value in the filter window is smaller than a certain threshold, the midpoint of the filter window is considered to be the boundary value of the VDSL interference frequency band, the size of the width w of the filter window and the threshold n are empirical values w, the value of the empirical value w can be generally 20-200, and the value of n is generally a certain value between (-120-80 dBm);
s204: determining a VDSL interference frequency band;
through quantification, the complexity of the algorithm can be reduced, the frequency of configuration parameter switching is reduced, and the stability of the system is further improved.
Fig. 3 is a schematic diagram illustrating an embodiment of determining a VDSL interference frequency band by using a filter window method, as shown in fig. 3, the determining of the interference frequency band range by using a filter window method in the present invention specifically includes:
by selecting a proper filter window width w and a Power Spectral Density (PSD) threshold n value, the interference of the tone in the narrow-band region and the interference of the VDSL frequency band can be effectively distinguished.
S301: acquiring background noise to be analyzed from an interference module;
s302: and judging whether the PSD level average value of the VDSL DS1 frequency band is larger than a preset threshold value plus mdB.
S303: if the threshold value is not larger than the set threshold value, VDSL interference does not exist.
S304: if the threshold value is larger than the threshold value, VDSL interference exists, and the VDSL interference range is continuously judged, starting from 2.2Mhz, and the judgment is started when the filter window width is w.
S305: the average PSD in the filtering window is greater than a set threshold ndB.
S306: the filter window is slid in the high frequency direction sMhz, and step S305 is repeated until the PSD average in the filter window becomes smaller than the set determination value ndB.
S307: and taking the middle frequency point of the filter window as the maximum value of the VDSL interference frequency band.
S308: and quantizing the maximum value of the VDSL interference frequency band according to 8Mhz, 12Mhz, 17Mhz, 30Mhz and 35Mhz, wherein the final quantized value is the determined VDSL interference maximum frequency band.
Fig. 4 is a flowchart illustrating a process of controlling and adjusting whether to open a VDSL interference band of a g.fast port according to an embodiment of the present invention, as shown in fig. 4, the controlling and adjusting whether to open the VDSL interference band of the g.fast port includes:
s401, obtaining a VDSL interference judgment result from a VDSL interference frequency band;
s402, judging whether VDSL frequency band interference exists or not from the judgment result;
s403, if VDSL interference exists, judging whether the interference is the same as the previous interference, and if so, not performing any treatment;
s404, if the present judgment result is different from the last judgment result, the VDSL frequency band interference program is started to be closed, wherein the different judgment results are that the VDSL interference is not interfered to the VDSL frequency band interference, or the situation that the VDSL interference frequency band is low is changed into the situation that the VDSL interference frequency band is high;
s405, if the VDSL frequency band interference is judged not to exist, further analyzing whether the VDSL frequency band needs to be opened or not, and if the judgment condition is not met, performing no processing, wherein the situation that whether the VDSL interference-free frequency band lasts for more than k days can be assumed to be judged;
s406, opening the VDSL interference frequency band when the determination condition is met.
In specific implementation, after determining to close the VDSL interference band of the g.fast port according to the VDSL interference range and the link establishment condition of the g.fast port, the embodiment of the present invention specifically includes: judging that the VDSL interference frequency band of the pre-closed G.FAST port is in use, if so, updating the flag bit of the G.FAST port, and triggering to close the VDSL interference frequency band of the G.FAST port when the G.FAST port is out of link.
Specifically, referring to fig. 5, the strategy for closing the VDSL interference frequency band according to the embodiment of the present invention, the process of starting and closing the VDSL interference frequency band by the GFAS port includes:
s501: detecting that VDSL interference exists from the beginning or the VDSL interference frequency band changes;
s502: the control module firstly inquires the current link establishment states of all ports;
s503, judging the link establishment state of each port;
s504, for the link establishment port, setting a port configuration updating flag bit, and triggering configuration parameter updating when the port is disconnected;
and S505, directly re-issuing the port configuration parameters of the non-established link.
That is to say, in order not to affect the normal use of the user, the present invention determines that the VDSL interference band of the g.fast port is being used before closing the VDSL interference band of the g.fast port, if so, updates the flag bit of the g.fast port, and triggers to close the VDSL interference band of the g.fast port when the g.fast port is dropped.
Fig. 6 shows a schematic flow diagram of a g.fast port dropping and reestablishing a link according to an embodiment of the present invention, including:
s601, triggering a port chain dropping process;
the triggered link may be a dropped link due to poor link quality or a dropped link actively triggered by the user;
s602, judging the update zone bit of the port;
s603, if not updated, the port rebuilds the link according to the port enabling configuration, or the link is in a drop link state;
s604: if the port updating flag bit is set, triggering a parameter reconfiguration process;
s605: clearing a port updating zone bit;
and S606, according to the port enabling configuration, the port reestablishes the link with the new configuration parameters, or the link drop state is kept, and the link is reestablished by adopting the new configuration parameters.
In specific implementation, in order to facilitate an operator to know the actual conditions of each current port, the method can also enable a user to inquire the current VDSL interference condition, the historical VDSL interference condition, whether each port currently configures a VDSL interference frequency band to be closed, the link establishment state of each port, and the like in real time. Meanwhile, when the VDSL interference frequency band changes or the system determines to open the interfered frequency band, corresponding notification is reported.
Specifically, the operator issues a status query command, queries the operating status of each port of the current network element, collects all relevant information on the current network element, including but not limited to the current VDSL interference situation, the historical VDSL interference situation, whether each port currently configures a VDSL interference band to be closed, the link establishment status of each port, the update flag bit of each port, and the like, and returns the result to the operator.
When detecting that the VDSL interference band changes, it reports a notification to the network manager, for example, when the VDSL interference band that was closed before the VDSL interference band is opened, it also reports a notification to the network manager.
In case of interference, the method can improve the stability of the line and the satisfaction of the user by closing the interfered frequency band, and along with the advance of the deployment of the G.FAST, after the interference of the VDSL in the line is eliminated, the system can automatically open the VDSL frequency band and improve the link establishment rate of the G.FAST.
Device embodiment
An embodiment of the present invention provides a device for adaptively adjusting g.fast port control in an ultra-wideband copper access technology, referring to fig. 7, the device includes: the detection unit is used for detecting the interference range of the VDSL of the ultra-high-speed digital user line of the G.FAST port of the ultra-wideband copper wire access technology; and the control unit is used for determining to close or open the VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port.
That is, the invention detects the VDSL interference range of the g.fast port through the detection unit, and automatically adjusts whether the VDSL interference frequency band of the g.fast port is opened or not according to the VDSL interference range through the control unit, that is, the invention can improve the stability of the line and the satisfaction of the user by closing the interfered frequency band, and automatically opens the VDSL frequency band after the VDSL interference in the line is eliminated, thereby improving the g.fast link establishment rate, and finally reducing the maintenance workload of the operator, thereby effectively solving the problem that the operator needs to manually modify whether the VDSL frequency band of the g.fast line is opened or not and increasing the workload of the operator in the prior art.
Further, the detection unit according to the embodiment of the present invention further includes: the acquisition module is used for acquiring a background noise value of the G.FAST port; and the analysis module is used for determining the G.FAST port with interference according to the background noise and determining the range of the interference frequency band of the G.FAST port with interference.
Specifically, the obtaining module in the embodiment of the present invention is further configured to obtain a background noise value of each g.fast port through round training; or, acquiring the background noise value of the G.FAST port by random selection. The analysis module is further configured to compare the background noise value with a preset noise threshold, determine that VDSL interference exists when the background noise value exceeds the noise threshold, and determine the range of the g.fast port interference frequency band in a filtering window manner.
In specific implementation, the noise to be analyzed in the embodiment of the present invention may be a port with the largest influence from among the uplink and downlink background noises of the multiple link establishment ports for analysis, or a background noise of a certain port is randomly selected for analysis, or uplink and downlink background noises of the multiple link establishment ports may be superimposed for analysis, or the superimposed noise is averaged for analysis, or only the uplink or downlink noise may be analyzed, or the like.
Further, the analysis module according to the embodiment of the present invention is further configured to compare the background noise value with a preset noise threshold, and determine that VDSL interference exists when the background noise value exceeds the noise threshold.
The preset noise threshold value is determined by adding a certain threshold value mdB to the preset line background noise, and m is generally an empirical value and can be a value more than 20 dB.
The preset line background noise is usually an empirical value and is flexibly set, and white noise can be directly adopted, the empirical value of the white noise is generally less than-140 dBm/Hz, and the empirical value is generally related to the line environment of an operator, and can be for example-130 dBm/Hz or-135 dBm/Hz.
In specific implementation, the analysis module of the invention determines the range of the g.fast port interference frequency band by a filtering window mode.
The range of the VDSL interference frequency band can be analyzed through a filter window, the PSD average value in the width w of the filter window is larger than a certain threshold ndB to determine whether the VDSL interference is received, if the PSD average value in the width w of the filter window is smaller than a certain threshold, the midpoint of the filter window is considered to be the boundary value of the VDSL interference frequency band, the size of the width w of the filter window and the threshold n are empirical values, w can be a value between 20 and 200 generally, and n is a value between (-120 and 80dBm) generally.
Further, the control unit in the embodiment of the present invention is further configured to close a frequency band of VDSL interference of the g.fast port of the non-established chain, open a frequency band of VDSL non-interference of the g.fast port of the established chain, present a frequency band of VDSL interference to the g.fast port of the established chain, and trigger to close the frequency band of VDSL interference of the g.fast port when the g.fast port drops the chain.
Specifically, the control unit of the present invention determines to close or open the VDSL interference band of the g.fast port according to the VDSL interference range and the link establishment condition of the g.fast port, controls to close or open the VDSL interference band of the g.fast port, and determines that the VDSL interference band of the g.fast port is being used before controlling to close the VDSL interference band of the g.fast port, if yes, updates the flag bit of the g.fast port, and triggers to close the VDSL interference band of the g.fast port when the g.fast port is dropped.
The related content in the embodiments of the present invention can be understood by referring to the apparatus embodiments and the method embodiments, and will not be described herein again.
The invention can at least achieve the following beneficial effects:
the invention can improve the stability of the line and the satisfaction degree of users by detecting the VDSL interference range of the G.FAST port and automatically adjusting whether the VDSL interference frequency band of the G.FAST port is opened or not according to the VDSL interference range, namely, the invention can close the interfered frequency band, automatically open the VDSL frequency band after the VDSL interference in the line is eliminated, thereby improving the G.FAST link establishment speed, and finally reducing the maintenance workload of an operator, thereby effectively solving the problems that whether the VDSL frequency band of the G.FAST line is opened or not needs to be manually modified by the operator in the prior art and the workload of the operator is increased.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (12)
1. A method for controlling an ultra-wideband copper access technology G.FAST port, comprising:
detecting the VDSL interference range of an ultra-high-speed digital user line of a G.FAST port of an ultra-wideband copper wire access technology;
determining to close or open a VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port;
determining to close or open a VDSL interference band of the g.fast port according to the VDSL interference range and the chain establishment condition of the g.fast port, and controlling to close or open the VDSL interference band of the g.fast port includes: closing the frequency band of VDSL interference of the G.FAST port without the built link; opening a VDSL non-interference frequency band of a G.FAST port of the established link; and when the G.FAST port drops the link, triggering to close the VDSL interference frequency band of the G.FAST port.
2. The method according to claim 1, wherein the detecting VDSL interference range of the ultra-high speed digital subscriber line g.fast port of ultra-wideband copper access technology specifically comprises:
acquiring a background noise value of a G.FAST port;
and determining the G.FAST port with interference according to the background noise, and determining the range of the interference frequency band of the G.FAST port with interference.
3. The method according to claim 2, wherein the obtaining the background noise value of the g.fast port specifically comprises:
acquiring background noise values of all G.FAST ports through round training;
or,
and acquiring a background noise value of the preset G.FAST port by random selection.
4. The method according to claim 2, wherein the determining the g.fast port with interference from the background noise comprises:
comparing the background noise value of the G.FAST port with a preset noise threshold value, and determining that VDSL interference exists in the G.FAST port when the background noise value exceeds the noise threshold value.
5. The method according to claim 2, wherein the determining the range of the g.fast port interference frequency band where interference exists specifically includes:
and determining the range of the G.FAST port interference frequency band with interference by a filtering window mode.
6. The method according to claim 1, wherein after determining to turn off the VDSL interference band of the g.fast port according to the VDSL interference range and the link establishment condition of the g.fast port, before controlling to turn off the VDSL interference band of the g.fast port, specifically comprises:
judging that the VDSL interference frequency band of the pre-closed G.FAST port is in use, if so, updating the flag bit of the G.FAST port, and triggering to close the VDSL interference frequency band of the G.FAST port when the G.FAST port is out of link.
7. An apparatus for controlling ultra-wideband copper access technology, g.fast, ports, comprising:
the detection unit is used for detecting the interference range of the VDSL of the ultra-high-speed digital user line of the G.FAST port of the ultra-wideband copper wire access technology;
the control unit is used for determining to close or open a VDSL interference frequency band of the G.FAST port according to the VDSL interference range and the chain establishment condition of the G.FAST port, and controlling to close or open the VDSL interference frequency band of the G.FAST port;
the control unit determines to close or open a VDSL interference band of the g.fast port according to the VDSL interference range and the chain establishment condition of the g.fast port, and controls to close or open the VDSL interference band of the g.fast port, including: closing the frequency band of VDSL interference of the G.FAST port without the built link; opening a VDSL non-interference frequency band of a G.FAST port of the established link; and when the G.FAST port drops the link, triggering to close the VDSL interference frequency band of the G.FAST port.
8. The apparatus of claim 7, wherein the detection unit further comprises:
the acquisition module is used for acquiring a background noise value of the G.FAST port;
and the analysis module is used for determining the G.FAST port with interference according to the background noise and determining the range of the interference frequency band of the G.FAST port with interference.
9. The apparatus of claim 8,
the acquisition module is further used for acquiring background noise values of the G.FAST ports through round training; or, acquiring the background noise value of the preset G.FAST port by random selection.
10. The apparatus of claim 8,
the analysis module is further configured to compare a background noise value of the g.fast port with a preset noise threshold, and determine that VDSL interference exists in the g.fast port when the background noise value exceeds the noise threshold.
11. The apparatus of claim 8,
the analysis module is further used for determining the range of the G.FAST port interference frequency band with interference through a filtering window mode.
12. The apparatus of claim 7,
the control unit is further configured to determine to close or open a VDSL interference band of the g.fast port according to the VDSL interference range and the link establishment condition of the g.fast port, control closing or opening of the VDSL interference band of the g.fast port, determine that the VDSL interference band of the g.fast port is being used before controlling closing of the VDSL interference band of the g.fast port, if yes, update a flag bit of the g.fast port, and trigger closing of the VDSL interference band of the g.fast port when the g.fast port is dropped.
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| CN201611235226.5A CN108259276B (en) | 2016-12-28 | 2016-12-28 | Method and device for controlling ultra-wideband copper wire access technology G.FAST port |
| PCT/CN2017/119243 WO2018121645A1 (en) | 2016-12-28 | 2017-12-28 | Method and device for controlling g.fast port |
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| CN201611235226.5A CN108259276B (en) | 2016-12-28 | 2016-12-28 | Method and device for controlling ultra-wideband copper wire access technology G.FAST port |
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