CN208209974U - The frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire - Google Patents
The frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire Download PDFInfo
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- CN208209974U CN208209974U CN201821130545.4U CN201821130545U CN208209974U CN 208209974 U CN208209974 U CN 208209974U CN 201821130545 U CN201821130545 U CN 201821130545U CN 208209974 U CN208209974 U CN 208209974U
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Abstract
The utility model provides a kind of G.fast signal, the frequency division multiplexing transmitting device of VDSL2 signal and voice signal in copper wire, it include: the first separator, for once being filtered, being coupled by selected G.fast signal, VDSL2 signal and adjacent two signals of voice signal Mid Frequency, the first mixed signal and a unselected independent signal are formed；Second separator is connect with first separator, and the mixed signal and this two signal of the independent signal are carried out secondary filtering, coupling, the second mixed signal is formed and transmits in copper wire.Three kinds of signals successively filter twice, be coupled by the broadband frequency range difference based on G.fast signal, VDSL2 signal and voice signal, and guaranteeing each signal is that frequency range is not overlapped and does not interact.It solves the problems, such as that G.fast technology is directly accessed existing VDSL2 broadband network and the two is caused to interfere with each other as a result, meets the demand that VDSL2 user increases copper wire broadband access rate.
Description
Technical field
The utility model relates to network communication technology field, especially a kind of G.fast signal, VDSL2 signal and speech
Frequency division multiplexing transmitting device of the signal in copper wire.
Background technique
For traditional copper wire network based on voice service, the data service of early stage passes through voice-frequency dialing Modem and ISDN mode
It provides, limited access rate is difficult to meet the demand of growing data service bandwidth.With skills such as ADSL, VDSL2
The popularization and application of art, access rate are further promoted to Mbps from kbps.ADSL described previously is Asymmetrical Digital Subscriber Line.
Common telephone wire is divided into using frequency multiplexing technique by three phone, upstream data and downlink data relatively independent letters
Road, so as to avoid mutual interference.User can not have to worry speed of surfing the Internet and speech quality to surf the Internet when making a phone call
The case where decline.And VDSL2 is Very High Speed Digital Subscriber Line.For technical standpoint, VDSL2 actually may be regarded as ADSL
Upgrading, average transmission rate is higher by 5 to 10 times than ADSL.
The network service that broadband access can be provided is also low from earliest BBS(Bulletin Board System) (BBS), web page browsing etc.
Bandwidth applications develop to voice communication, video calling, high definition television, virtual reality etc. bandwidth applications.
With emerging services such as OTT (Over-The-Top) video, 4K TV, wisdom family, the following cloud business epoch
It rises, ultra-wide band network pace of construction is being accelerated.For newly-built community, fiber to the home (FTTH, Fiber To is generallyd use
The Home) mode.But for mature cell, for fiber reforming because being related to the complex engineerings such as knob-and-tube wiring, construction progress is slow.In
It is that operator considers how to move down into optical fiber into corridor or entrance, the last a bit of original access medium of recycling
(especially traditional copper wire) provides ultrahigh speed broadband access.Since access is apart from short, operator desires access to rate and reaches gigabit.
As the alternative solution of FTTH, G.fast comes into being.G.fast is that a standardization of International Telecommunication Union (ITU) is suggested,
Purpose is to reach the speed of optical fiber on the copper wire for being no more than 250m length, i.e., more than 1Gpbs.The initial rank of the high band of G.fast
Section can use 106MHz, and future extends to 212MHz.
G.fast signal can reuse mature cell and have copper wire resource, using broader frequency spectrum resource, in traditional copper wire
It is upper that the high bandwidth access for being up to the optical fiber that is equal to of 1Gpbs is provided, realize faster access, faster deployment, faster income.
As shown in figure 5, the broadband frequency range of voice signal is 0Hz~f1The broadband frequency range of Hz, VDSL2 signal is f1Hz~
f3Hz.The bin width that VDSL2 signal occupies is limited, and copper wire broadband access rate is insufficient for the needs of super application.Such as
Fig. 6 show the broadband G.fast frequency range schematic diagram, and the broadband frequency range of G.fast signal is f2Hz~f4Hz, wherein f1< f2< f3<
f4.As G.fast signal is by the further expansion of bin width, it is more that copper wire broadband access rate, which has strided forward the Gpbs epoch,
Super application provides wide space.But comparison diagram 5 and Fig. 6 are it is not difficult to find that VDSL2 signal and G.fast signal used
Some is overlapping to frequency range, and G.fast signal, which is directly accessed existing VDSL2 signal copper wire broadband environment, will cause
The two interfere with each other and lead to not using.
Utility model content
The main purpose of the utility model is to provide a kind of G.fast signal, VDSL2 signal and voice signals in copper wire
In frequency division multiplexing transmitting device, defect in the prior art is overcome using frequency division filtering technique.
The frequency division multiplexing transmitting device of the G.fast signal, VDSL2 signal and voice signal in copper wire, comprising:
First separator, for by selected G.fast signal, VDSL2 signal and voice signal Mid Frequency it is adjacent two
Signal carries out a secondary coupling, forms the first mixed signal and a unselected independent signal；
One secondary coupling includes that the signal of the high band in two signal for will be formed the first mixed signal carries out high pass
Filtering, another signal carry out low-pass filtering, are then multiplexed into frequency range shared by first mixed signal；
Second separator is connect with first separator, by the mixed signal and the independent signal this two signal
Two secondary couplings are carried out, the second mixed signal is formed and is transmitted in copper wire；
Two secondary coupling includes that the signal of the high band in two signal for will be formed the second mixed signal carries out high pass
Filtering, another signal carry out low-pass filtering, are then multiplexed into frequency range shared by second mixed signal.
By upper, the broadband frequency range difference based on G.fast signal, VDSL2 signal and voice signal carries out three kinds of signals
Successive two secondary coupling guarantees each signal and is that frequency range is unfolded and does not interact.Solves G.fast technology as a result,
It is directly accessed the problem of existing VDSL2 broadband network causes the two to interfere with each other, VDSL2 user is met and increases copper wire broadband
The demand of access rate.
Wherein, first separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of first separator is connected to transmission VDSL2 signal, first separation
The equipment that low-pass filter one end of device is connected to transmission voice signal；The other end of the high-pass filter of first separator
A mixed signal port is connected to the other end of the low-pass filter；
Second separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of second separator is connected to transmission G.fast signal, the other end are connected to
Copper wire；
Low-pass filter one end of second separator is connected to the mixed signal port, and the other end is connected to described
Copper wire.
By upper, the first separator isolates VDSL2 signal and voice signal, and carries out primary coupling and form mixed signal；
Second separator isolates the mixed signal and G.fast signal, then couples the two to form G.fast signal, VDSL2 signal
With the mixed signal of voice signal.The distance of the transmission as needed for G.fast technology is only one kilometer or so, be can use
Higher frequency range is transmitted in copper wire.Based on this, even if the low frequency part that G.fast signal and VDSL2 signal are coincided is filtered
It removes, the transmission speed of G.fast signal will not be influenced.It solves G.fast technology and is directly accessed existing VDSL2 signal copper wire and make
The problem of interfering with each other at the two meets the demand that VDSL2 user increases copper wire broadband access rate.
Wherein, first separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of first separator is connected to transmission G.fast signal, first separation
The equipment that low-pass filter one end of device is connected to transmission VDSL2 signal；
The other end of the high-pass filter of first separator and the other end of the low-pass filter are connected to
One mixed signal port；
Second separator includes high-pass filter and low-pass filter；
High-pass filter one end of second separator is connected to the mixed signal port, and the other end is connected to described
Copper wire；
The equipment that low-pass filter one end of second separator is connected to transmission voice signal, the other end are connected to institute
State copper wire.
By upper, the first separator isolates VDSL2 signal and G.fast signal, and carries out primary coupling and form mixing letter
Number；Second separator isolates the mixed signal and voice signal, then couples the two to form G.fast signal, VDSL2 letter
Number and voice signal mixed signal.The distance of the transmission as needed for G.fast technology is only one kilometer or so, can benefit
It is transmitted with frequency range higher in copper wire.Based on this, even if the low frequency part that G.fast signal and VDSL2 signal are coincided
It filters out, the transmission speed of G.fast signal will not be influenced.It solves G.fast technology and is directly accessed existing VDSL2 signal copper wire
The problem of causing the two to interfere with each other meets the demand that VDSL2 user increases copper wire broadband access rate.
Detailed description of the invention
Fig. 1 is the flow chart of the frequency division multiplexing transmitting device of G.fast, VDSL2 and voice signal in copper wire；
Fig. 2 is the frequency division multiplexing transmitting device first embodiment signal of G.fast, VDSL2 and voice signal in copper wire
Figure；
Fig. 3 is the frequency division multiplexing transmitting device second embodiment signal of G.fast, VDSL2 and voice signal in copper wire
Figure；
Fig. 4 is the broadband frequency range schematic diagram of G.fast, VDSL2 and voice signal frequency division multiplexing transmission in copper wire；
Fig. 5 is the broadband frequency range schematic diagram of VDSL2 and voice signal in copper wire in the prior art
Fig. 6 is the broadband frequency range schematic diagram of G.fast and voice signal in copper wire in the prior art.
Specific embodiment
Referring to FIG. 1 to FIG. 4 to G.fast signal described in the utility model, VDSL2 signal and voice signal in copper
Frequency division multiplexing transmitting device in line is described in detail.
As shown in Figure 1, the frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire is pressed
Following below scheme work:
S100: G.fast signal, VDSL2 signal and voice signal are subjected to a secondary coupling in local side, form one group of mixing
Signal and one group of independent signal.
The local side, which refers to, provides a side of terminal access, generally comprises interchanger or back end machine.As shown in Fig. 2, office
The Central Transmission unit at end is used for transmission VDSL2 signal and G.fast signal, be respectively shown in corresponding diagram 2 ATU-C/VDSL2 and
ATU-C/G.fast, the telephone exchange modem as asymmetric digital subscriber line component part.The phone of local side is handed over
Exchange device transmits voice signal.
Based on described in background technique, the broadband frequency range of voice signal is 0Hz~f1The broadband frequency range of Hz, VDSL2 signal is
f1Hz~f3The broadband frequency range of Hz, G.fast signal is f2Hz~f4Hz, f1< f2< f3< f4, wherein f1For 4KH, f2For 1MHz,
f3For 17MHz, f4For 216MHz.
The first separator of local side is set, includes a high-pass filter and a low-pass filtering in first separator of local side
Device.The both ends of high-pass filter are separately connected the low-pass filter in second separator of ATU-C/VDSL2 and local side described hereinafter
Port；The both ends of low-pass filter are separately connected the low-pass filtering in the second separator of the telephony switching gear and the local side
Device port.The port that high-pass filter connects the second separator with low-pass filter in the first separator of local side is known as mixed signal
Port.
As shown in connection with fig. 5, the two filter of the first separator of local side is with the upper frequency limit f of voice signal broadband frequency range1Hz
For node, high pass, low-pass filtering are carried out respectively, to filter out voice signal and VDSL2 signal respectively.The first separator of local side
The voice signal and the VDSL2 signal are coupled, one group of mixed signal is formed.
S200: mixed signal and independent signal are subjected to two secondary couplings in local side, form G.fast, VDSL2 and speech letter
Number mixed signal be transmitted to network copper wire.
The second separator of local side is set, equally includes a high-pass filter and a low pass filtered in second separator of local side
Wave device.The both ends of high-pass filter are separately connected ATU-C/G.fast and network copper wire, and the network copper wire is telephone wire,
For connecting local side and user terminal described hereinafter；The both ends of low-pass filter are separately connected the mixing of first separator of local side
Signal port and the network copper wire.
In conjunction with shown in Fig. 5 and Fig. 6, the two filter of the second separator of local side is in the frequency of VDSL2 signal broadband frequency range
Limit f3Hz is node, is transmitted to the first separator of local side in the G.fast signal and step S100 of ATU-C/G.fast transmission
Voice signal and the mixed signal of VDSL2 signal carry out high pass, low-pass filtering respectively, to filter out G.fast signal respectively
With the mixed signal.The G.fast signal coupling that the second separator of local side transmits the mixed signal and ATU-C/G.fast
It closes in the network copper wire, forms the mixed signal of G.fast signal as shown in Figure 4, VDSL2 signal and speech, pass through
Network copper transmission is to user terminal.
It is with the upper frequency limit f of VDSL2 signal broadband frequency range in the present embodiment3Hz is node, in actual use and unlimited
In this, referring to figs 5 and 6, with the lower-frequency limit f of G.fast signal broadband frequency range2Hz is wide to the VDSL2 signal
Upper frequency limit f with frequency range3Any frequency in the location Hz is node, is believed the G.fast of ATU-C/G.fast transmission
Number and step S100 in the mixed signal of voice signal and VDSL2 signal transmitted of the first separator of local side carry out height respectively
Logical, low-pass filtering, to filter out G.fast signal and the mixed signal respectively.I.e. high-pass filtering filters out f2Hz is to the node
The G.fast signal of frequency range retains the node to f4The G.fast signal of Hz frequency range；Low-pass filtering, which is crossed, to be filtered out higher than the node
The mixed signal of frequency range retains the mixed signal for being lower than the node.
S300: in user terminal, the mixed signal of G.fast signal, VDSL2 signal and speech is subjected to first separation, separation
For one group of independent signal and one group of mixed signal.
The user terminal is corresponding with the local side.It is provided with the second separator of user terminal, internal includes that a high pass is filtered
Wave device and a low-pass filter.The both ends of high-pass filter are separately connected the network copper wire and user terminal G.fast modulation /demodulation
Device, corresponding diagram 2 show ATU-R/G.fast；The both ends of low-pass filter are separately connected the network copper wire and described hereinafter
Mixed signal port in the first separator of user terminal.
Two filter in the second separator of user terminal is with the upper limit f of VDSL2 signal broadband frequency range3Hz is node, right
The mixed signal of G.fast signal, VDSL2 signal and voice signal carries out high pass, low-pass filtering, isolates individual G.fast
Signal, and the mixed signal including VDSL2 signal and voice signal.
S400: in user terminal, the mixed signal in step S300 is subjected to secondary separation, isolates two groups of independent signals.
The first separator of user terminal is set, equally includes that a high-pass filter and one are low in first separator of user terminal
Bandpass filter.The both ends of the high-pass filter be separately connected the second separator of user terminal low-pass filter port and the use
Family end VDSL2 modem, corresponding diagram 2 show ATU-R/VDSL2；The both ends of low-pass filter are separately connected the user
Hold low-pass filter port and the telephone set of the second separator.High-pass filter, low-pass filter in the first separator of user terminal
It is known as the mixed signal port of the first separator with the connecting pin of the second separator.
The two filter is with the upper limit f of the broadband frequency range of voice signal1Hz is node, is believed VDSL2 signal and speech
Number mixed signal carry out high pass, low-pass filtering.To isolate VDSL2 signal and voice signal.
Above-mentioned steps are to be exported by local side, and user terminal is illustrated for receiving.Due to above-mentioned local side separator and use
Filter in the separator of family end is bidirectionally conductive in its passband frequency range, i.e., signal can be transmitted to from any one end
The other end.Naturally it can be appreciated that further including being exported by user terminal, the received embodiment of local side.That is the user terminal second of user terminal
VDSL2 signal and voice signal are carried out coupling and form mixed signal by separator, and the first separator of user terminal again believes G.fast
Number and the coupling of aforementioned mixed signal to form the mixed signal of G.fast signal, VDSL2 signal and voice signal.In local side, office
Hold the second separator by the mixed signal of G.fast signal, VDSL2 signal and voice signal isolate G.fast signal and by
The mixed signal of VDSL2 signal and voice signal composition, the first separator of local side again form VDSL2 signal and voice signal
Mixed signal be separated into VDSL2 signal, voice signal.
Above-mentioned the first separator of local side and the first separator of user terminal are with the upper limit f of the broadband frequency range of VDSL23Hz is section
Point, filters out lower than f3The G.fast signal of Hz frequency range.The distance of the transmission as needed for G.fast technology is only one kilometer or so
(distance is shorter), therefore can use higher frequency range in copper wire and transmitted.Based on this, even if by G.fast signal with
The low frequency part that VDSL2 signal coincides, which filters out, (to be corresponded to and filters out G.fast signal broadband frequency range as f2Hz~f3Hz), also not
It will affect the transmission speed of G.fast signal.
Through the above technical solutions, alloing voice signal, VDSL2 signal and G.fast signal simultaneously in copper networks
Transmission without interfering with each other, constitute three frequency range frequency division multiplexings as shown in Figure 4, solve G.fast technology be directly accessed it is existing
The problem of VDSL2 signal copper wire causes the two to interfere with each other meets the need that VDSL2 user increases copper wire broadband access rate
It asks.
It is answered in addition, the utility model additionally provides the frequency division of G.fast signal, VDSL2 signal and voice signal in copper wire
With the second workflow embodiment of transmitting device, in conjunction with shown in Fig. 3, comprising the following steps:
S100: G.fast signal, VDSL2 signal and voice signal are subjected to a secondary coupling in local side, form one group of mixing
Signal and one group of independent signal.
The first separator of local side is set, includes a high-pass filter and a low-pass filtering in first separator of local side
Device.The both ends of high-pass filter are separately connected the high pass in second separator of ATU at the Central Office-C/G.fast and local side described hereinafter
Port of wave filter；The both ends of low-pass filter are separately connected the height in the second separator of ATU at the Central Office-C/VDSL2 and the local side
Bandpass filter port.High-pass filter and low-pass filter and the second separator of local side described hereinafter in the first separator of local side
Connecting pin is known as mixed signal port.
Referring to figs 5 and 6, the two filter of the first separator of local side is with the upper frequency limit f of the broadband VDSL2 frequency range3Hz
For node, high pass, low-pass filtering are carried out respectively, to filter out VDSL2 signal and G.fast signal respectively.Local side first separates
Device couples the G.fast signal for VDSL2 signal and the ATU-C/G.fast transmission that ATU-C/VDSL2 is transmitted to form one group of mixing
Signal.
It is with the upper frequency limit f of VDSL2 signal broadband frequency range in the present embodiment3Hz is node, in actual use and unlimited
In this, referring to figs 5 and 6, with the lower-frequency limit f of G.fast signal broadband frequency range2Hz is wide to the VDSL2 signal
Upper frequency limit f with frequency range3Any frequency in the location Hz is node, is believed the G.fast of ATU-C/G.fast transmission
Number and ATU-C/VDSL2 transmission VDSL2 signal carry out high pass, low-pass filtering respectively, to filter out G.fast signal respectively
With VDSL2 signal.I.e. high-pass filtering filters out f2Hz retains the node to f to the G.fast signal of the node frequency range4Hz frequency range
G.fast signal；Low-pass filtering, which is crossed, filters out the node to f3The VDSL2 signal of Hz frequency range retains f1Hz~the node is described
VDSL2 signal.
S200: carrying out two secondary couplings for mixed signal and independent signal in local side, forms G.fast, VDSL2 and speech
Mixed signal is transmitted to copper wire.
The second separator of local side is set, equally includes a high-pass filter and a low pass filtered in second separator of local side
Wave device.The both ends of high-pass filter are separately connected mixed signal port and the network copper wire of first separator of local side, described
Network copper wire is telephone wire, for connecting local side and the user terminal；The both ends of low-pass filter are separately connected telephone exchange
Equipment and the network copper wire.
In conjunction with shown in Fig. 5 and Fig. 6, the two filter of the second separator of local side is with the upper frequency limit of voice signal broadband frequency range
f1Hz is node, is transmitted to the first separator of local side in the voice signal and step S100 of telephony switching gear transmission
The mixed signal of G.fast signal and VDSL2 signal carries out high pass, low-pass filtering respectively, thus filter out respectively voice signal and
The mixed signal.The voice signal and mixed signal are coupled in the network copper wire by the second separator of local side, are formed
The mixed signal of G.fast signal, VDSL2 signal and speech as shown in Figure 4, passes through network copper transmission to user terminal.
S300: in user terminal, the mixed signal of G.fast, VDSL2 and speech is subjected to first separation, is separated into one group of list
Only signal and one group of mixed signal.
It is provided with the second separator of user terminal, internal includes a high-pass filter and a low-pass filter.High-pass filtering
The both ends of device are separately connected the mixed signal port of the first separator of the network copper wire and user terminal；The both ends of low-pass filter
It is separately connected the network copper wire and telephone set.
Two filter in the second separator of user terminal is with the upper frequency limit f of voice signal broadband frequency range1Hz is node, right
The mixed signal of G.fast signal, VDSL2 signal and voice signal carries out high pass, low-pass filtering, is separated into individual speech letter
Number, and the mixed signal including G.fast signal and VDSL2 signal.
S400: in user terminal, the mixed signal in step S300 is subjected to secondary separation, is separated into two groups of independent signals.
The first separator of user terminal is set, equally includes that a high-pass filter and one are low in first separator of user terminal
Bandpass filter.The both ends of the high-pass filter are separately connected high-pass filter port and the institute of second separator of user terminal
State user terminal G.fast modem ATU-R/G.fast；The both ends of low-pass filter are separately connected the user terminal second and divide
High-pass filter port and user terminal VDSL2 modem ATU-R/VDSL2 from device.The high pass of the first separator of user terminal
One end that filter and low-pass filter are connect with the second separator of user terminal is known as the mixed signal of the first separator of user terminal
Port.
The two filter is with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, to VDSL2 signal and
The mixed signal of G.fast signal carries out high pass, low-pass filtering.To isolate VDSL2 signal and G.fast signal.
Similarly with first embodiment, second embodiment is also to be exported by local side, and user terminal is illustrated for receiving.No
The case where indigestibility further includes being exported by user terminal, and local side receives, details are not described herein.The present embodiment and first embodiment solution
Certainly the technical issues of, is identical, is low frequency end regions and the equitant part in VDSL2 high band region for filtering out G.fast signal,
Transmit voice signal, VDSL2 signal and G.fast signal in copper networks simultaneously, without interfering with each other.
The frequency division multiplexing transmitting device of G.fast, VDSL2 and voice signal provided by the utility model in copper wire, packet
Include the local side and user terminal connected by network copper wire.
It is illustrated in figure 2 the schematic illustration of the frequency division multiplexing transmitting device first embodiment, local side includes:
Central Transmission unit, ATU-C/VDSL2 and ATU-C/G.fast shown in Fig. 2 are respectively used to transmission VDSL2 signal
With G.fast signal.
Telephony switching gear is used for transmission voice signal.
The frequency division multiplexing transmitting device includes the second separator of the first separator of local side and local side.
Wherein, the first separator of local side includes a high-pass filter and a low-pass filter.
The both ends of the high-pass filter in the first separator of local side are separately connected the ATU-C/VDSL2 and local side
Low-pass filter port in second separator, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out big
In f1The VDSL2 signal of Hz；
The both ends of the low-pass filter in the first separator of local side are separately connected the telephony switching gear and described
Low-pass filter port in the second separator of local side, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, filtering
It is less than f out1The voice signal of Hz.
The high-pass filter, low-pass filter in the first separator of local side is low in second separator of local side
One end of bandpass filter connection is mixed signal port, realizes that the VDSL2 signal that will filter out and voice signal are coupled, shape
At the mixed signal of VDSL2 signal and voice signal.
The second separator of local side includes a high-pass filter and a low-pass filter.
The both ends of the high-pass filter in the second separator of local side are separately connected the end G.fast of Central Transmission unit
Mouth and network copper wire, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, is filtered out greater than f3The G.fast of Hz believes
Number；
The network copper wire is telephone wire, for connecting local side and user terminal described hereinafter；
The both ends of low-pass filter in the second separator of local side are separately connected the mixing letter of first separator of local side
Number port and the network copper wire, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, is filtered out less than f3Hz's
The mixed signal of VDSL2 signal and voice signal.
The connecting pin and low-pass filter of the high-pass filter in the second separator of local side and the network copper wire with
The connecting pin of the network copper wire is connected, thus realize the mixed signal of the VDSL2 signal and voice signal that will filter out, with
And G.fast signal is coupled, and the mixed signal of G.fast signal, VDSL2 signal and voice signal is formed.
It is with the upper frequency limit f of VDSL2 signal broadband frequency range in the second separator of local side in the present embodiment3Hz is node,
It is not limited to this in actual use, referring to figs 5 and 6, with the lower-frequency limit f of G.fast signal broadband frequency range2Hz is extremely
The upper frequency limit f of VDSL2 signal broadband frequency range3Any frequency in the location Hz is node, to ATU-C/G.fast
The mixing for the voice signal and VDSL2 signal that the first separator of local side is transmitted in the G.fast signal and step S100 of transmission is believed
High pass, low-pass filtering are carried out number respectively, to filter out G.fast signal and the mixed signal respectively.I.e. high-pass filtering filters out
f2Hz retains the node to f to the G.fast signal of the node frequency range4The G.fast signal of Hz frequency range；Low-pass filtering, which is crossed, to be filtered out
Higher than the mixed signal of the node frequency range, retain the mixed signal for being lower than the node.
The frequency division multiplexing transmitting device further includes the first separator of the second separator of user terminal and user terminal.
Wherein, the second separator of user terminal includes a high-pass filter and a low-pass filter.
The both ends of high-pass filter in the second separator of user terminal are separately connected the network copper wire and user terminal
G.fast modem is ATU-R/G.fast shown in Fig. 2, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is
Node is filtered out greater than f3The G.fast signal of Hz, is transmitted to ATU-R/G.fast；
The both ends of low-pass filter in the second separator of user terminal are separately connected the network copper wire and user terminal first
The mixed signal port of separator, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, is filtered out less than f3Hz's
G.fast signal is transmitted to the mixed signal port of the first separator of user terminal；
The first separator of user terminal, including a high-pass filter and a low-pass filter.
The both ends of high-pass filter in the first separator of user terminal are separately connected in second separator of user terminal
Low-pass filter port and the user terminal VDSL2 modem are ATU-R/VDSL2 shown in Fig. 2, wide with voice signal
Upper frequency limit f with frequency range1Hz is node, is filtered out greater than f1The VDSL2 signal of Hz, is transmitted to ATU-R/VDSL2；
The both ends of low-pass filter in the first separator of user terminal are separately connected in second separator of user terminal
Low-pass filter port and telephone set, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out less than f1Hz's
Voice signal is transmitted to telephone set.
In the above-described embodiments, second separator of local side is identical with second cyclone separator arrangement of user terminal；It is described
The first separator of local side is identical with first cyclone separator arrangement of user terminal.Equally it may be implemented in two separators of user terminal
The coupling of signal can also realize the separation of signal in two separators of local side.
It is illustrated in figure 3 the schematic illustration of the frequency division multiplexing transmitting device second embodiment, local side includes:
Central Transmission unit, ATU-C/VDSL2 and ATU-C/G.fast shown in Fig. 3 are respectively used to transmission VDSL2 signal
With G.fast signal.
Telephony switching gear is used for transmission voice signal.
The frequency division multiplexing transmitting device includes the second separator of the first separator of local side and local side.
Wherein, the first separator of local side includes a high-pass filter and a low-pass filter.
The both ends of the high-pass filter in the first separator of local side are separately connected ATU-C/G.fast and local side second
High-pass filter port in separator, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, filters out and is greater than
f3The G.fast signal of Hz；
The both ends of the low-pass filter in the first separator of local side are separately connected the ATU-C/VDSL2 and described
High-pass filter port in the second separator of local side, with the upper frequency limit f of VDSL2 signal broadband frequency range3Hz is node, mistake
It filters out and is less than f3The VDSL2 signal of Hz.
In the high-pass filter and low-pass filter and second separator of local side in the first separator of local side
High-pass filter connecting pin is known as mixed signal port, realizes that the G.fast signal that will filter out and VDSL2 signal are coupled,
Form the signal mixed signal of G.fast signal and VDSL2.
The first separator of local side is with the upper frequency limit f of VDSL2 signal broadband frequency range in the present embodiment3Hz is node, real
Border is not limited to this in, referring to figs 5 and 6, with the lower-frequency limit f of G.fast signal broadband frequency range2Hz is to institute
State the upper frequency limit f of VDSL2 signal broadband frequency range3Any frequency in the location Hz is node, is passed to ATU-C/G.fast
Defeated G.fast signal and the VDSL2 signal of ATU-C/VDSL2 transmission carry out high pass, low-pass filtering respectively, to filter respectively
G.fast signal and VDSL2 signal out.I.e. high-pass filtering filters out f2Hz retains the node to the G.fast signal of the node frequency range
To f4The G.fast signal of Hz frequency range；Low-pass filtering, which is crossed, filters out the node to f3The VDSL2 signal of Hz frequency range retains f1Hz~should
The VDSL2 signal of node.
The second separator of local side, including a high-pass filter and a low-pass filter.
The both ends of the high-pass filter in the second separator of local side are separately connected the mixed of first separator of local side
Signal port and network copper wire are closed, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out greater than f1Hz's
The mixed signal of G.fast signal and VDSL2 signal；The network copper wire is telephone wire, for connecting local side and described hereinafter
User terminal；
The both ends of low-pass filter in the second separator of local side are separately connected the telephony switching gear and the network
Copper wire, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out less than f1The voice signal of Hz.
The connecting pin and low-pass filter of the high-pass filter in the second separator of local side and the network copper wire with
The connecting pin of the network copper wire is connected, and realizes the mixed of the voice signal that will filter out and G.fast signal and VDSL2 signal
It closes signal to be coupled, forms the mixed signal of G.fast signal, VDSL2 signal and voice signal.
The frequency division multiplexing transmitting device further includes the first separator of the second separator of user terminal and user terminal.
The second separator of user terminal includes a high-pass filter and a low-pass filter.
The both ends of high-pass filter in the second separator of user terminal are separately connected the network copper wire and user terminal first
The mixed signal port of separator, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out greater than f1Hz's
The mixed signal of G.fast signal and VDSL2 is transmitted to the mixed signal port of the first separator of user terminal；
The both ends of low-pass filter in the second separator of user terminal are separately connected the mixed of first separator of user terminal
Signal port and telephone set are closed, with the upper frequency limit f of voice signal broadband frequency range1Hz is node, is filtered out less than f1The speech of Hz
Signal is transmitted to telephone set；
The first separator of user terminal, including a high-pass filter and a low-pass filter.
The both ends of high-pass filter in the first separator of user terminal are separately connected the height of second separator of user terminal
Bandpass filter port and the user terminal G.fast modem are ATU-R/G.fast shown in Fig. 3, with VDSL2 signal
The upper frequency limit f of broadband frequency range3Hz is node, is filtered out greater than f3The G.fast signal of Hz is transmitted to ATU-R/G.fast use
The port G.fast of family end modem；
The both ends of low-pass filter in the first separator of user terminal are separately connected the height of second separator of user terminal
Bandpass filter port and the user terminal VDSL2 modem are ATU-R/VDSL2 shown in Fig. 3, wide with VDSL2 signal
Upper frequency limit f with frequency range3Hz is node, is filtered out less than f3The VDSL2 signal of Hz, is transmitted to user terminal modem
The port VDSL2.
High-pass filter and low-pass filter in first separator of user terminal are connect with the second separator of user terminal
One end be known as the mixed signal port of the first separator of user terminal.
Similarly, in the above-described embodiments, second separator of local side is identical with second cyclone separator arrangement of user terminal；
First separator of local side is identical with first cyclone separator arrangement of user terminal.I.e. two separators of user terminal equally can be with
The coupling for realizing signal, can also realize the separation of signal in two separators of local side.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire, feature exist
In, comprising:
First separator, for by selected G.fast signal, VDSL2 signal and adjacent two signals of voice signal Mid Frequency
A secondary coupling is carried out, the first mixed signal and a unselected independent signal are formed；
One secondary coupling includes that the signal of the high band in two signal for will be formed the first mixed signal carries out high-pass filtering,
Another signal carries out low-pass filtering, is then multiplexed into frequency range shared by first mixed signal；
Second separator is connect with first separator, and the mixed signal and this two signal of the independent signal are carried out
Two secondary couplings form the second mixed signal and transmit in copper wire；
Two secondary coupling includes that the signal of the high band in two signal for will be formed the second mixed signal carries out high-pass filtering,
Another signal carries out low-pass filtering, is then multiplexed into frequency range shared by second mixed signal.
2. the apparatus according to claim 1, which is characterized in that
First separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of first separator is connected to transmission VDSL2 signal, first separator
The equipment that low-pass filter one end is connected to transmission voice signal；The other end of the high-pass filter of first separator and institute
The other end for stating low-pass filter is connected to a mixed signal port；
Second separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of second separator is connected to transmission G.fast signal, the other end are connected to copper
Line；
Low-pass filter one end of second separator is connected to the mixed signal port, and the other end is connected to the copper
Line.
3. the apparatus according to claim 1, which is characterized in that
First separator includes high-pass filter and low-pass filter；
The equipment that high-pass filter one end of first separator is connected to transmission G.fast signal, first separator
The equipment that low-pass filter one end is connected to transmission VDSL2 signal；
It is mixed that the other end of the high-pass filter of first separator and the other end of the low-pass filter are connected to one
Close signal port；
Second separator includes high-pass filter and low-pass filter；
High-pass filter one end of second separator is connected to the mixed signal port, and the other end is connected to the copper
Line；
The equipment that low-pass filter one end of second separator is connected to transmission voice signal, the other end are connected to the copper
Line.
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|---|---|---|---|
| CN201821130545.4U CN208209974U (en) | 2018-07-17 | 2018-07-17 | The frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire |
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| CN201821130545.4U CN208209974U (en) | 2018-07-17 | 2018-07-17 | The frequency division multiplexing transmitting device of G.fast signal, VDSL2 signal and voice signal in copper wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768571A (en) * | 2018-07-17 | 2018-11-06 | 北京科络捷通讯产品有限责任公司 | The frequency division multiplexing transmission method and device of G.fast signals, VDSL2 signals and voice signal in copper wire |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768571A (en) * | 2018-07-17 | 2018-11-06 | 北京科络捷通讯产品有限责任公司 | The frequency division multiplexing transmission method and device of G.fast signals, VDSL2 signals and voice signal in copper wire |
| CN108768571B (en) * | 2018-07-17 | 2023-09-12 | 北京科络捷通讯产品有限责任公司 | Method and device for frequency division multiplexing transmission of G.fast signal, VDSL2 signal and voice signal in copper wire |
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Address after: Room 428, 4th floor, No.2 Stadium South Road, Shijingshan District, Beijing 100043 Patentee after: Beijing keluojie Communication Technology Co.,Ltd. Address before: Room 428, 4th floor, No.2 Stadium South Road, Shijingshan District, Beijing 100043 Patentee before: BEIJING CORELOGIC COMMUNICATION Co.,Ltd. |