TWI631838B - Copper cable co-constructed frequency band overlap coexistence management system and method - Google Patents

Abstract

The invention discloses a copper cable co-constructed frequency band overlap coexistence management system and method, and the system comprises a VDSL customer equipment, a G.fast customer equipment, a bundled cable, a circuit switching equipment, a VDSL equipment terminal equipment, and a G.fast equipment room. End equipment, band overlap coexistence management device, rate database, line database, and the like. The coexistence of different copper technologies uses a band avoidance method to solve the crosstalk interference problem, but setting the split frequency band will greatly reduce the G.fast performance. The invention provides a frequency band overlap coexistence management method, which automatically adjusts and reduces the VDSL spectrum output energy, and improves the G.fast spectrum output energy, that is, G.fast adopts the full band mode, and intelligently adjusts the G.fast circuit interference related function parameters, Improve the quality of G.fast circuit connection, and will not be disconnected by VDSL circuit interference, in order to achieve the purpose of circuit quality and efficiency.

Description

Copper cable co-constructed frequency band overlap coexistence management system and method

The invention belongs to a copper cable co-construction band overlap coexistence management system and method, in particular to improve the G.fast connection performance, and the VDSL2 noise for the copper co-construction system is the main coexistence consideration object.

With the rapid growth of global broadband service demand, global telecom operators are all actively building Fiber to the Home (FTTH) broadband networks to meet the increasing demand for network bandwidth and services. However, in fact, when the fiber penetration rate of the client and the popularity of ODN (Optical Distribution Network) network construction are still limited by specific factors, the copper wire access network is still the last major broadband connection. Take one of the networks. Considering the cost and timeliness, the broadband network is gradually developed from the FTTN+VDSL2 architecture to the FTTdp (Fiber to the distribution point) network architecture to shorten the copper line distance and increase the access network speed. VDSL2 access network technology combined with bonding technology with multiple pairs of line bandwidth bundling, and vectoring (Vectoring) technology to eliminate far-end crosstalk interference to further improve network bandwidth. In order to be in line with the bandwidth that fiber-optic networks can provide, ITU-T (International Telecommunication Union-Telecommunication) proposed the G.fast standard (G.9700 and G.9701) in 2014 to provide the highest downlink plus row sum rate. (Aggregation Rate) is a technology of 1 Gbps.

At present, telecom operators have introduced G.fast(R) technology broadband network access equipment to provide downlink 300Mbps and 500Mbps service capabilities, mainly used in building floors to quickly meet the needs of operators to promote high-speed services and overcome The issue of fiber-optic network deployment. The industry will follow the development of G.fast technology equipment used in the building's telecommunications room and expand the range of high-speed services with cost-effectiveness. When the G.fast multi-device application is used, the same cable will exist with the existing VDSL2 circuit. The frequency band used by the VDSL2 technology is quite large (~30MHz), which will have a large influence on the G.fast connection rate. Therefore, coexistence with existing VDSL2 circuits will result in a reduction in G.fast connection speed and connection quality, which will be a common issue that needs to be further overcome and improved. Due to the high transmission output power of the VDSL2 circuit, the G.fast circuit in the same cable will suffer severe interference from the VDSL2 circuit, and the error will affect the quality of the circuit, and even the possibility of disconnection reconnection. Therefore, for the telecommunications industry, circuit stability is the most important, so the simplest way is to isolate the signal of the VDSL2 circuit by avoiding the frequency band, so as to avoid the G.fast circuit signal being affected. However, the frequency band used by the VDSL2 circuit is as high as 17/30MHz, and the frequency of the G.fast circuit needs to be changed from the original 2.2MHz to the frequency point of 19/32MHz, so the G.fast circuit will be lost. The 2.2~19/32MHz band provides about 150~250Mbps bandwidth capability.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventors of the present invention have improved and innovated, and after years of painstaking research, they have successfully developed and completed the copper-cable co-construction band overlap coexistence management system and method.

In order to achieve the above object, the present invention provides a copper cable co-constructed frequency band overlap coexistence management system and method, which is to improve G.fast connection performance. The VDSL2 noise for the copper co-construction system is the main coexistence consideration object. The following four technical solutions are used: Please refer to Figure A to adjust the G.fast anti-interference parameters to improve the circuit stability, and to adjust the anti-interference of the G.fast circuit. Functional parameters, providing G.fast circuit stability, this is the first one.

From the above analysis, if G.fast does not avoid frequency, G.fast will cause errors or disconnection due to interference. However, G.fast uses the full frequency band, although the amount of bits carried is reduced, but compared with the frequency avoidance. In other words, there are still more carrying bit quantities, which in turn increases the connection rate. It has been found that G.fast does not avoid frequency disconnection due to interference, which is caused by G.fast's Fast Restart mechanism, which can be improved by adjusting the function trigger parameters. At the same time, the FRA (Fast Rate Adaptation) operating parameters were developed, and the FRA function was used to reconnect the interference with VDSL2.

In a 24 AWG cable with a distance of 70 meters, the 4-way G.fast circuit and the 16-channel VDSL2 17a circuit were verified. It was found that even if the 16-way VDSL2 17a circuit was reconnected, the G.fast circuit was not broken. In the process of interference, a few seconds of error occurs first due to interference, and then the adjustment process of the FRA start protection circuit lasts for about ten seconds, and then the original stable state is restored through the SRA function. The lower uplink circuit rate of G.fast can increase 41Mpbs and 33Mbps respectively compared with the frequency avoidance (19~106MHz).

Please refer to Figure B. Using the background VDSL circuit to improve the stability of the circuit, it is the second technique to use the VDSL circuit as the background noise to protect the interference of the VDSL circuit.

When G.fast is turned on without any VDSL circuit, G.fast will be connected at the highest rate with the lowest noise margin, so when the other VDSL circuits in the vicinity are turned on, it will create a powerful G.fast. Interference at this time When the noise margin is not high enough, the circuit will be disconnected and then reconnected. Then, if VDSL2 is turned off, G.fast will be restored to the original state through the SRA function. After VDSL2 is restarted, G.fast is affected again and then disconnected. Line, disconnection phenomenon is repeated, this is the circuit instability.

The solution is to use a large number of VDSL2 circuits to use the background noise of the G.fast circuit, so that the G.fast spectrum can be adjusted according to the background VDSL2 when the G.fast circuit is connected, although the connection rate will be slightly lower, The noise margin will be higher to accommodate changes in other VDSL2 circuits in the environment.

Please refer to Figure C. Adjusting and lowering the VDSL band and reducing the interference spectrum energy will reduce the transmission band of the VDSL circuit without affecting the VDSL rate. This is the third technique.

Does not affect the VDSL user service rate and supply distance target, adjust the VDSL transmission frequency bandwidth, but still reach the 100M/40M service demand, with the current VDSL equipment test results, the VDSL 30a circuit frequency band adopts 138K~27MHz (X=27M), The service rate of 100M/40M is achieved without affecting the purpose of supply distance. VDSL adjusts (shrinks) the uplink frequency band to the optimal frequency point according to the lease rate, instead of adopting the 30a maximum transmission band for transmission, which greatly reduces the interference degree of VDSL to G.fast.

With the line switching mechanism, the entity avoids VDSL and G.fast circuit interference, which is the fourth technology.

The goal is to pursue the maximum speed and the optimal distance of the G.fast circuit, that is, only the G.fast circuit in the 100 pairs of cables, the VDSL circuit will be moved to another hundred pairs of cables, so that G.fast will not be affected by VDSL interference, and the maximum is achieved. Performance; premise, the pipeline configuration must have at least two hundred pairs of cables.

In order to make G.fast/VDSL2 co-construct, G.fast is affected by minimal interference, and the judgment principle of high-speed copper coexistence wisdom method includes situation. Management, spectrum management, interference management, and cable management are the four main management processes to achieve the best G.fast rate and quality optimization: situation management: use database and actual LDM function measurement to confirm VDSL and G .fast is co-constructed in the telecommunications room environment.

Spectrum management: Under the user's rent rate, adjust the maximum frequency value and PSD value of the VDSL circuit, mainly using the above technology [0012~0013].

Interference management: use VDSL circuit as background noise and adjust G.fast circuit anti-interference function parameters, increase G.fast anti-VDSL interference disconnection capability, mainly adopt the above technology one [0006~0008] and technology two [0009~0011 】.

Cable management: When the G.fast circuit is co-constructed with the VDSL circuit, the G.fast rate does not meet the user's rental rate, and the G.fast cable pair position is adjusted. The above-mentioned technology is mainly used to adopt the line exchange mechanism, and the entity avoids VDSL and G.fast circuit interference, mainly using the above technology four [0014~0015].

The invention provides a copper cable co-constructed frequency band overlap coexistence management system and method, which has the following advantages when compared with other conventional technologies:

1. The invention is applicable to high speed copper cable technology, including VDSL technology, VDSL2 technology, and G.fast technology.

2. The invention has a frequency band overlap coexistence management device, which instantly monitors the spectrum distribution of the VDSL circuits in the same hundred pairs of cables, and automatically adjusts the spectrum related parameters of the VDSL circuit and the G.fast circuit.

3. The band overlap coexistence management apparatus of the present invention can automatically adjust parameters related to anti-interference functions of the G.fast circuit (for example, SRA, FRA, etc.).

4. The band overlap coexistence management apparatus of the present invention may be built in a G.fast equipment terminal device or a standalone device or a network management system.

5. The band overlap coexistence management method of the present invention optimizes the frequency band of the VDSL circuit and the G.fast circuit to maintain service stability.

6. The band overlap coexistence management method of the present invention automatically adjusts the G.fast circuit to use in a full frequency band to achieve the purpose of maximizing the transmission rate.

7. The band overlap coexistence management method of the present invention automatically adjusts the circuit switching device according to whether the connection rate of the G.fast circuit satisfies the user rent rate, so as to achieve the isolation effect of different hundred pairs of cables.

110‧‧‧VDSL client device

120‧‧‧G.fast client device

130‧‧‧Bundled cable

140‧‧‧Circuit exchange equipment

150‧‧‧VDSL room equipment

160‧‧‧G.fast machine room equipment

170‧‧‧band overlapping coexistence management device

171‧‧‧ data transmission bus

172‧‧‧Line Switching Module

173‧‧‧VDSL spectrum setting module

174‧‧‧G.fast spectrum and parameter setting module

175‧‧‧Bronze signal monitoring module

176‧‧‧band overlap coexistence analysis module

180‧‧‧ rate database

190‧‧‧Line database

210‧‧‧100 pairs of cables

220‧‧‧Single wire pair

S410~S490‧‧‧ Process

Referring to the detailed description of the present invention and the accompanying drawings, the technical contents of the present invention and the functions thereof can be further understood. The related drawings are as follows: FIG. 1 is a schematic diagram of a frequency band overlap coexistence management system and method for copper cable co-construction of the present invention. 2 is a schematic diagram of a bundled cable of a copper-cable co-construction band overlap coexistence management system and method; FIG. 3 is a connection diagram of a copper-cable co-construction band overlap coexistence management system and method; 4 is a flow chart of a frequency band overlap coexistence management system and method for copper cable co-construction of the present invention; FIG. A is a schematic diagram for adjusting G.fast anti-interference parameters to improve circuit stability; FIG. B is a schematic diagram for improving circuit stability by using background VDSL circuit. Figure C is a schematic diagram of adjusting the VDSL band and reducing the interference spectrum energy.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention will be further described with reference to the accompanying drawings. Referring to FIG. 1 and FIG. 3, FIG. 1 and FIG. 3 are a structural diagram and a connection architecture diagram of a copper-cable co-construction band overlap coexistence management system and method, which include a line switching setting. The module 140 is an electrical connection band overlap coexistence analysis module 176 and a data transmission bus 171, and the cable information analyzed by the band overlap coexistence analysis module 176 is sent to the circuit switching setting module 172, and the abnormality is G. The fast circuit is isolated, and the isolation mode is the circuit switching setting module 172, and then the cable control signal is sent to the line switching device 140 for physical circuit switching, blocking VDSL and G.fast on the same hundred pairs of cables; a VDSL spectrum setting mode The group 173 is for the electrical connection band overlap coexistence analysis module 176 and the data transmission bus bar 171, and the maximum spectrum information of the VDSL circuit analyzed by the band overlap coexistence analysis module 176 is sent to the VDSL spectrum setting module 173, and the VDSL spectrum is set. The module 173 then sets the VDSL maximum spectrum value to the VDSL room end device 150; a G.fast spectrum and parameter setting module 174 is an electrical connection band overlap coexistence analysis module 1 76 and the data transmission bus 171, the spectrum and interference related parameter data of the G.fast circuit analyzed by the band overlap coexistence analysis module 176 are sent to the G.fast spectrum and parameter setting module 174, G.fast spectrum and parameter setting mode. Group 174 will set G.fast to the maximum spectrum, and optimize the interference parameters to the G.fast equipment terminal device 160; a copper signal monitoring module 175 is for the electrical connection band overlap coexistence analysis module 176 and data The transmission bus 171 provides regular monitoring of the signal and noise spectrum distribution information of each loop to be sent to the frequency band. The overlapping coexistence analysis module 176 performs an analysis operation; and the one-band overlap coexistence analysis module 176 is an electrical connection rate database 180, a line database 190, and a line switching setting module 172, a VDSL spectrum setting module 173, G The .fast spectrum and parameter setting module 174 and the copper signal monitoring module 175, and according to the rent rate and the line condition of each circuit, refer to the loop signal and the noise spectrum distribution information returned by the copper signal monitoring module 175. Wisdom analysis reads the VDSL and G.fast circuits using spectrum parameters and connection conditions, and then outputs them to each setting module.

The frequency band overlap coexistence analysis module 176 is built in the equipment room end equipment, the network management system or other external equipment.

The VDSL spectrum setting module 173 is an instruction that can automatically set the maximum frequency band of the VDSL circuit, such as 24 MHz, and convert the spectrum analysis result into a VDSL room end device, and set the available frequency band of the circuit.

The G.fast spectrum and parameter setting module 174 is capable of setting a G.fast maximum frequency band of 2 to 106 MHz, 2 to 212 MHz, 2 to 424 MHz, and converting the spectrum analysis result into a G.fast equipment terminal device, and Set the available frequency band of the circuit.

The copper signal monitoring module 175 is used to start the G.fast circuit, and will automatically monitor the VDSL circuit regularly, and can monitor the high-speed copper cable. The xDSL technology has VDSL and VDSL2, and the G.fast technology has FAST and NG-FAST.

VDSL client device 110, G.fast client device 120, bundled cable 130, circuit switching device 140, VDSL terminal device 150, G.fast terminal device 160, band overlap coexistence management device 170, rate database 180, Line database 190. When collecting VDSL equipment room equipment 150, G.fast equipment room equipment 160 VDSL and G.fast circuit wiring spectrum characteristics, and regularly monitor and analyze the spectrum and interference parameters of the circuit, under the conditions of user lease rate, stable And reliably achieve G.fast and VDSL circuit transmission The purpose of improving quality. The VDSL client device 110 is a CPE device such as a VDSL VTU-R or a VDSL2 VTU-R, and the corresponding VDSL terminal device 150 is a CO device such as a VDSL DSLAM or a VDSL2 DSLAM, and the G.fast client device 120 is a G.fast FTU-R. The CPE equipment, corresponding to the G.fast equipment terminal equipment 160 is the CO equipment of the G.fast FTU-O. The telephone line between the CO equipment terminal equipment and the CPE customer equipment is a bundled cable 130 in units of 100 pairs. The circuit switching is effective, that is, the VDSL equipment terminal equipment 150, the G.fast equipment terminal equipment 160 and A line switching device 140, such as a Patch Panel, is employed between the bundled cables 130. The rate database 180 and the line database 190 provide user lease rate and cable line information to the band overlap coexistence management device 170 for analysis and use, thereby controlling and managing the VDSL room end device 150, the G.fast machine room device 160, and the band overlap coexistence management device. 170 may be a soft and hardware module that can be built in the same device as the VDSL terminal device 150 and the G.fast terminal device 160, or may be an external device, such as a software module built in the NMS network management system.

Please refer to FIG. 2 , which is a schematic diagram of a bundled cable of a copper cable co-constructed frequency band overlap coexistence management system and method, including a pair of cables 210 and a single wire pair 220 . The bundled cable has a plurality of hundred pairs of cables 210, such as one thousand pairs of cables, and ten pairs of cables 210. In general, high-speed copper cable interference only occurs in the hundred pairs of cables 210, and each other's hundred pairs of cables 210 There is no interference, so the technical interference considered by the present invention is in the range of hundreds of pairs of cables 210. The hundred pairs of cables 210 have 100 pairs of single wire pairs 220, and the VDSL circuit or G.fast circuit signals are carried in a single wire pair 220.

Referring to FIG. 3, it is a connection architecture diagram of a cable overlap coexistence management system and method for a copper cable co-construction of the present invention, a data transmission bus 171, a circuit switching setting module 172, a VDSL spectrum setting module 173, and G. Fast spectrum The parameter setting module 174, the copper signal monitoring module 175, the band overlap coexistence analysis module 176, the combination, function and other modules are described as follows: the data transmission bus 310 is a circuit switching device 140, a VDSL room Two-way data transmission relay of the end device 150, the G.fast terminal device 160, the circuit switching setting module 172, the VDSL spectrum setting module 173, the G.fast spectrum and parameter setting module 174, and the copper signal monitoring module 175 Media, bidirectional data including uplink rate, signal to noise ratio, bit map, Quiet Line Noise, quality parameter information (eg CRC/ES), etc. .

The copper signal monitoring module 175 collects the circuit spectrum characteristics of the VDSL room end device 150 and the G.fast machine room end device 160 at a fixed time. The VDSL machine room end device 150 and the G.fast machine room end device 160 utilize loop monitoring technology (Loop Diagnostic Mode). ;LDM) Get the cable loop and noise spectrum characteristics.

The band overlap coexistence analysis module 176 analyzes the VDSL and G.fast circuit data sent by the copper signal monitoring module 175, and the user and line usage information of the rate database 180 and the line database 190, and analyzes the VDSL and the The best spectral parameter output required by the G.fast circuit user.

The band overlap coexistence analysis module 176 sends the analysis result to the VDSL spectrum setting module 173, the G.fast spectrum and parameter setting module 174 for the spectrum and interference parameter setting of the VDSL room end device 150 and the G.fast room end device 160. The setting mode can be set by using a device interface (such as a console interface) or a network management setting interface (such as a web interface or an SNMP interface), and the circuit connection rate is obtained after the VDSL and G.fast circuits of each equipment room device are connected. After the quality parameter information, the band overlap coexistence analysis module 176 performs the confirmation of the user service rate, and according to the network circuit connection.

Regularly confirm VDSL and G.fast circuit speeds to maintain circuit products Quality, to achieve the goal of improving the transmission efficiency of high-speed copper circuits. If the G.fast circuit is severely disturbed, causing the connection to be unstable, the line switching setting module 172 is used to adjust the position of the G.fast pair of cables, and the digital control signal is sent to the line switching device 140 for line switching.

Please refer to FIG. 4 , which is a flowchart of a method and method for coexisting a frequency band overlap coexistence management system of a copper cable according to the present invention. The method includes the following steps: Step S1: S410 sets a frequency of a G.fast circuit to a maximum value, and is a G.fast spectrum and a parameter. The setting module sets the G.fast circuit frequency to the maximum value; the second step, the S420 uses the line database and the LDM function, and the band overlap coexistence analysis module refers to the data of the line database and the copper signal monitoring module performs the LDM function. The result is as follows: Step 3: S430 determines whether there is a VDSL circuit in the pair of copper cables, analyzes whether there is a VDSL circuit in the pair of copper cables for the band overlap coexistence analysis module, and steps S4 adjusts the maximum frequency value of the VDSL circuit as the frequency band. The overlap coexistence analysis module analyzes the result, and the VDSL spectrum setting module adjusts the maximum frequency value of the VDSL circuit; Step 5: S450 determines whether the VDSL circuit rate meets the user rent rate, and the band overlap coexistence analysis module analyzes whether the VDSL circuit rate meets the user lease rate. Step 6: S460 adjusts the interference parameters related to the G.fast circuit, and performs connection analysis for the band overlap coexistence analysis module. Set by G.fast spectral parameter adjustment module G.fast interference parameters associated circuits, and the circuit connecting line G.fast; Step seven, S470VDSL G.fast start judging circuit connection is disconnected, VDSL circuit startup connection is set for the VDSL spectrum setting module, and the G.fast circuit is disconnected by the copper signal monitoring module; Step 8: S480 determines whether the G.fast circuit meets the user lease rate, and is the band overlap coexistence analysis mode. The group analysis judges whether the G.fast circuit meets the user rent rate; and steps IX, S490 performs circuit switching, and analyzes the result of the band overlap coexistence analysis module, and the circuit switching setting module performs circuit switching of the hundred pairs of cables.

It can be known from the above process that step one to step three is a situational process, which uses the loop database content of the rate database content and the copper signal monitoring module to determine that VDSL and G.fast are co-constructed in the telecommunications room environment. Case; Steps 4 to 5, for the spectrum process, adjust the maximum frequency value and PSD value of the VDSL circuit under the condition of satisfying the user rent rate; Step 6 to Step 7, for the interference process, use the VDSL circuit as the background Signal and adjustment G.fast circuit anti-interference function parameters, increase G.fast anti-VDSL interference disconnection capability, target G.fast will not be disconnected by VDSL interference; Steps 8 to 9 are cable processes, which are in G The .fast circuit does not meet the user's rental rate and adjusts the G.fast pair of cable locations.

The situation process uses the loop diagnosis result of the copper signal monitoring module to judge the situation that VDSL and G.fast are co-constructed in the telecom room environment; the spectrum process adjusts and reduces the VDSL circuit by using the VDSL spectrum setting module under the condition that the user rent rate is satisfied. The maximum frequency value and PSD value, and the G.fast spectrum and parameter setting module are used to set the maximum frequency value and PSD value of the G.fast circuit. The interference process uses the G.fast spectrum and parameter setting module to automatically adjust the anti-interference function parameters of the G.fast circuit to increase the G.fast anti-VDSL interference disconnection capability. cable The line process found that the G.fast circuit was severely interfered, resulting in unstable connection. The line switching setting module was used to adjust the position of the G.fast pair of cables. All of the above methods are carried out by using the frequency band overlap coexistence analysis module analysis result, and are applicable to a standard process when the new G.fast circuit is applied.

The detailed description of the present invention is intended to be illustrative of a preferred embodiment of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, this case is not only innovative in terms of technical thinking, but also has many of the above-mentioned functions that are not in the traditional methods of the past. It has fully complied with the statutory invention patent requirements of novelty and progressiveness, and applied for it according to law. Approved this invention patent application, in order to invent invention, to the sense of virtue.

Claims (12)

A copper cable co-constructed frequency band overlap coexistence management system, comprising: a line switching setting module, which is an electrical connection band overlapping coexistence analysis module and a data transmission bus bar, and the frequency band overlap coexistence analysis module analyzes the cable The line information is sent to the line switching setting module to isolate the abnormal G.fast circuit. The isolation mode is the line switching setting module, and then the cable control signal is sent to the line switching device for physical circuit switching, blocking VDSL and G.fast in The same hundred pairs of cables; a VDSL spectrum setting module is an electrical connection band overlapping coexistence analysis module and a data transmission bus, and the maximum spectrum information of the VDSL circuit analyzed by the band overlapping coexistence analysis module is sent to the VDSL spectrum. The setting module, the VDSL spectrum setting module sets the maximum spectrum value of the VDSL to the VDSL room end device; a G.fast spectrum and parameter setting module is an electrical connection band overlapping coexistence analysis module and a data transmission bus. G.fast circuit spectrum and interference related parameter data analyzed by the band overlap coexistence analysis module are sent to the G.fast spectrum and parameter setting module, G.fast frequency The spectrum and parameter setting module will set G.fast as the maximum spectrum and optimize the interference parameters to the G.fast equipment terminal equipment; a copper signal monitoring module is an electrical connection band overlap coexistence analysis module and Data transmission bus, providing regular monitoring of each loop signal and noise spectrum distribution information, sent to the band overlap coexistence analysis module for analysis and calculation; and a band overlap coexistence analysis module, electrical connection rate database, line data Library, and the circuit switching setting module, the VDSL spectrum setting module, the G.fast spectrum and parameter setting module, and the copper signal monitoring Control module, and according to the lease rate and line condition of each circuit, refer to the loop signal and noise spectrum distribution information returned by the copper signal monitoring module, analyze and read the spectrum parameters and connections used in the VDSL and G.fast circuits. The situation is then output to each setting module. For example, the copper-cable co-constructed frequency band overlap coexistence management system described in the first application of the patent scope, wherein the frequency band overlap coexistence analysis module is built in the equipment room end equipment, the network management system or other external equipment. For example, the copper cable co-constructed frequency band overlap coexistence management system described in claim 1 wherein the VDSL spectrum setting module automatically sets the maximum frequency band of the VDSL circuit. The frequency band overlap coexistence management system of the copper cable co-construction as described in claim 1, wherein the VDSL spectrum setting module converts the spectrum analysis result into an instruction of the VDSL equipment terminal device, and sets the VDSL circuit to be available. frequency band. The band overlap coexistence management system of the copper cable co-construction described in the first application of the patent scope, wherein the G.fast spectrum and the parameter setting module are configured to set the G.fast maximum frequency band to 2 to 106 MHz, 2 to 212 MHz, 2~424MHz. The band overlap coexistence management system of the copper cable co-construction as described in claim 1, wherein the G.fast spectrum and parameter setting module converts the spectrum analysis result into an instruction of the G.fast terminal device, and Set the available frequency band of the G.fast circuit. For example, the copper cable co-constructed frequency band overlap coexistence management system described in claim 1 wherein the copper signal monitoring module is configured to automatically monitor the VDSL circuit when the G.fast circuit is activated. For example, the copper cable co-constructed frequency band overlap coexistence management system described in the first application of the patent scope, wherein the copper signal monitoring module is also capable of monitoring high speed copper Cable xDSL technology has VDSL, VDSL2, G.fast technology has FAST and NG-FAST. A copper cable co-constructed frequency band overlap coexistence management method includes: Step 1: G.fast spectrum and parameter setting module set G.fast circuit frequency to a maximum value; Step 2: Band overlap coexistence analysis module refers to a line database The data and the result of the LDM function performed by the copper signal monitoring module; Step 3: The band overlap coexistence analysis module analyzes whether there is a VDSL circuit in the pair of copper cables; Step 4: The frequency band overlap coexistence analysis module analyzes the result, The VDSL spectrum setting module adjusts the maximum frequency value of the VDSL circuit; step 5, the frequency band overlap coexistence analysis module analyzes whether the VDSL circuit rate meets the user rent rate; and the sixth step, the frequency band overlap coexistence analysis module analyzes the result, and the G.fast spectrum and parameters The setting module adjusts the interference parameters of the G.fast circuit and performs G.fast circuit connection; step 7. The VDSL spectrum setting module performs the VDSL circuit startup connection, and the copper signal monitoring module monitors whether the G.fast circuit is broken. Line, which is step 6 to step 7, using VDSL circuit as background noise and adjusting G.fast circuit anti-interference function parameters, adding G.fast The road anti-VDSL interference disconnection capability, the target G.fast circuit will not be disconnected by VDSL interference; Step 8. The band overlap coexistence analysis module analyzes whether the G.fast circuit meets the user lease rate; and Step 9. The frequency band overlap coexistence The module analysis results are analyzed, and the line exchange setting module performs the circuit exchange of the hundred pairs of cables. For example, the method for managing the frequency band overlap coexistence of the copper cable co-construction described in the ninth application patent scope, wherein the step 1 to the third step is to determine the VDSL and the loop diagnosis result by using the content of the rate database and the copper signal monitoring module. G.fast is a situation that is co-constructed in a telecommunications room environment. For example, the method for managing the frequency band overlap coexistence of the copper cable co-construction described in the ninth application patent scope, wherein the step 4 to the fifth step is to adjust and reduce the maximum frequency value of the VDSL circuit and the PSD (Power) under the condition that the user rent rate is satisfied. Spectrum Density) value. The method for managing the frequency band overlap coexistence of the copper cable co-construction as described in claim 9 wherein the step 8 to the step 9 is to adjust the G.fast cable pair when the G.fast circuit does not satisfy the user rent rate. position.