CN101742013B - System and method for simulating user line access multiplexing - Google Patents

Abstract

The invention relates to a system and a method for simulating user line access multiplexing. The method comprises the following steps: when one user terminal or a plurality of user terminals which are connected with user terminal multiplexing equipment pick up the phone, the user terminal multiplexing equipment stops sending phone hanging up signals from the corresponding ports of the user terminals; after modulating different frequency offsets of the analog voice information sent by the corresponding ports of the user terminals, the user terminal multiplexing equipment sends the analog voice information to local-side multiplexing equipment, and the local-side multiplexing equipment receives the analog voice information and demodulates the corresponding frequency offsets of the analog voice information; after modulating different frequency offsets of the analog voice information sent from the corresponding ports of other user terminals, the local-side multiplexing equipment sends the analog voice information to the user terminal multiplexing equipment, the user terminal multiplexing equipment receives the analog voice information and demodulates the corresponding frequency offsets of the analog voice information; and after the user terminals hang up the phone, the user terminal multiplexing equipment restores to send phone hanging up signals from the corresponding ports of the user terminals. Adopting a pair of user external lines, the invention realizes the purpose of simultaneously transmitting multiple paths of analog voice services, improves the utilization rate of the external line cables and reduces the expanding and operating cost of the operator.

Description

A kind of simulating user line access multiplexing system and method

Technical field

The present invention relates to a kind of simulating user line access multiplexing system and method, the particularly multiplexing a kind of system of analog line in the Access Network (ANAccess Network), and this system realizes the method for multiplexing function.

Background technology

Existing telecommunication network system increases on scale day by day, and the user of access is more and more.And because the reduction of cost, communication network gradually move towards small towns, rural area from the city, backwoodsman user increases becomes the telecommunications new growth point.But the prices of raw and semifnished materials such as copper that increase have day by day increased the networking cost and the maintenance cost of operator.

In existing PSTN (Public Switched Telephone Network) telephone network, subscriber's line quantity is huge.Rural area and backwoodsman user owing to the user comparatively disperses, and mainly are low end subscribers, only need the analog voice access service.A pair of subscriber's line provides one tunnel user's analog voice access service, does not make full use of the bandwidth of wire transmission circuit, in case there is new user to insert, just must increase new subscribers feeder outside line, and this has increased the cost of operator.

Existing subscribers feeder multiplex technique adopts time-multiplexed method the analog telephone access service to be provided for the different terminal user through a pair of subscribers feeder; These terminal uses can only have a user normally to use a time; Other users can't use simultaneously, and using to the user makes troubles.

Summary of the invention

The technical problem that the present invention will solve provides a kind of simulating user line access multiplexing system and method; Realized using a pair of user outline; Transmit the multi-channel analog speech business simultaneously, improve the utilization ratio of user outline cable, can reduce the cost of operator's dilatation and operation.

In order to solve the problems of the technologies described above; The invention provides a kind of simulating user line access multiplexing method; Comprise: during the one or more user terminal off-hook that is connected with the user side multiplexing equipment, the corresponding port that the user side multiplexing equipment stops at said user terminal sends on-hook signal; After the analog voice information that the user side multiplexing equipment is sent from corresponding port said user terminal is carried out the modulation of different frequency deviations, be transferred to the reception of local side multiplexing equipment and carry out the inclined to one side demodulation of respective tones; After the analog voice information that said local side multiplexing equipment is sent from corresponding port other user terminals is carried out the modulation of different frequency deviations, be transferred to said user side multiplexing equipment reception and carry out the inclined to one side demodulation of respective tones; After the said user terminal on-hook, the user side multiplexing equipment recovers to send on-hook signal at the corresponding port of said user terminal.

Further, the user terminal that is connected with said user side multiplexing equipment sends separately on-hook signal through the user side multiplexing equipment to the local side multiplexing equipment through corresponding port.

Further, the on-hook signal that the local side multiplexing equipment detects said port disappears, and carries out the off-hook operation at said port; The local side multiplexing equipment detects the on-hook signal of said port, carries out the on-hook operation at said port, finishes said business.

Further; Before the one or more user terminal off-hooks that are connected with the user side multiplexing equipment; Also comprise: said other user terminals are called out the said user terminal that is connected with the user side multiplexing equipment; The bell signal of a CF of being seen off by said other user terminal corresponding port is sent to said user side multiplexing equipment through the local side multiplexing equipment; Said user side multiplexing equipment is judged the corresponding port according to the amplitude of said bell signal, produces ringing-current and sees the relative users terminal that is connected to the user side multiplexing equipment off; Said user terminal ring, user's off-hook.

In order to solve the problems of the technologies described above, the present invention also provides a kind of simulating user line access multiplexing system, comprising: user side multiplexing equipment and local side multiplexing equipment, wherein,

Said user side multiplexing equipment; Be used to connect one or more user terminals; When said user terminal off-hook, stop at its corresponding port and send on-hook signal; After said user terminal on-hook, recover to send on-hook signal, also be used for the analog voice information that said user terminal is sent from corresponding port is carried out being transferred to the local side multiplexing equipment after the modulation of different frequency deviations, and receive the analog voice information that said local side multiplexing equipment transmits and carry out the inclined to one side demodulation of respective tones at its corresponding port;

Said local side multiplexing equipment; Be used for the analog voice information that other user terminals are sent from corresponding port is carried out being transferred to said user side multiplexing equipment after the modulation of different frequency deviations, and receive the analog voice information that said user side multiplexing equipment transmits and carry out the inclined to one side demodulation of respective tones.

Further, said user side multiplexing equipment is used for connected user terminal is sent to said local side multiplexing equipment through the on-hook signal separately that corresponding port sends.

Further, said local side multiplexing equipment when detecting the on-hook signal disappearance of said port, carries out the off-hook operation at said port; When detecting the on-hook signal of said port, carry out the on-hook operation, finish said business at said port.

Further; Said local side multiplexing equipment; Be used for calling out at said other user terminals said during with user terminals that the user side multiplexing equipment is connected, the bell signal of the CF that will be seen off by said other user terminal corresponding port is sent to said user side multiplexing equipment; Said user side multiplexing equipment is judged the corresponding port according to the amplitude of said bell signal, produces ringing-current and sees the relative users terminal that is connected to the user side multiplexing equipment off.

Useful technique effect of the present invention:

For existing every pair of subscribers feeder can only the transmission of one line analog voice professional and existing multiplex technique the shortcoming of multi-channel analog voice access service can not be provided simultaneously; Under the prerequisite of using a pair of user outline, adopt frequency multiplexing technique, transmit the multi-channel analog speech business simultaneously; Improve the utilization ratio of user outline cable; Make operator carry out the dilatation of analog voice access service, reduce the cost of operator's dilatation and operation not rolling up local side under the prerequisite of terminal use's outside line.

Description of drawings

Fig. 1 is the sketch map of local side multiplexing equipment in the embodiment of the invention, simulation access device and subscriber terminal equipment;

Fig. 2 is the sketch map of local side multiplexing equipment in the embodiment of the invention;

Fig. 3 is the sketch map of user side multiplexing equipment in the embodiment of the invention;

Fig. 4 is based on the multiplexing implementation method first pass figure of this equipment in the embodiment of the invention;

Fig. 5 is a kind of multiplexing implementation method second flow chart based on this equipment in the embodiment of the invention.

Embodiment

Core of the present invention is: during the one or more user terminal off-hook that is connected with the user side multiplexing equipment, the corresponding port that the user side multiplexing equipment stops at said user terminal sends on-hook signal; After the analog voice information that the user side multiplexing equipment is sent from corresponding port said user terminal is carried out the modulation of different frequency deviations, be transferred to the reception of local side multiplexing equipment and carry out the inclined to one side demodulation of respective tones; After the analog voice information that said local side multiplexing equipment is sent from corresponding port other user terminals is carried out the modulation of different frequency deviations, be transferred to said user side multiplexing equipment reception and carry out the inclined to one side demodulation of respective tones; After the said user terminal on-hook, the user side multiplexing equipment recovers to send on-hook signal at the corresponding port of said user terminal.

With an embodiment simulating user line access multiplexing system that the present invention proposes is described below, as shown in Figure 1, multiplex system comprises:

The local side multiplexing equipment is connected with the simulation access device, and the subscribers feeder of being responsible for local side is multiplexing, and the pseudo-terminal user sets out;

The user side multiplexing equipment, it is multiplexing to be responsible for the user side subscribers feeder, gives terminal equipment (phone) feed, and sense terminals dislodging machine send ringing-current to the terminal when called, informs the dislodging machine state at local side multiplexing equipment terminal; Send user's on-hook signal to the local side multiplexing equipment;

Also comprise: separator is a low pass filter, is responsible for the analog voice signal (port 0) of low frequency and the Signal Separation of the relative high frequency rate of carrying out frequency deviation modulation back transmission are avoided the phase mutual interference.

Wherein, the local side multiplexing equipment comprises: dislodging machine control module (receiving terminal) 11, low-pass filtering module 12, high-pass filtering module 13, coupling module 14, frequencydeviation modulation module 15 and power module 16;

When the current terminal caller that is connected with the user side multiplexing equipment:

Dislodging machine control module (receiving terminal) 11; Be responsible for the on-hook signal of the CF (outside the modulation frequency range) of each port correspondence of detection coupling module 14 transmissions; And after stopping to receive the on-hook signal of certain port; Carry out the analog station off-hook operation of corresponding port, the analog voice signal of corresponding port is sent to the simulation access device; After said port recovers to receive on-hook signal, in said port analog station on-hook operation;

Low-pass filtering module 12, the analog voice signal on the port of being responsible for the user side multiplexing equipment is transmitted 0 separates with analog voice signal through other ports of ovennodulation, obtains the analog voice signal on the port 0;

High-pass filtering module 13, the analog voice signal through ovennodulation of the certain port of being responsible for the user side multiplexing equipment is transmitted separates with the on-hook signal of other ports, obtains the on-hook signal alternating current component of other ports, sends to coupling module 14 then;

Coupling module 14; The analog voice signal alternating current component on the certain port of being responsible for frequencydeviation modulation module 15 is demodulated and the on-hook signal alternating current component of other ports are coupled on the DC component that the access device port provides, and obtain said analog voice signal and on-hook signal and send to dislodging machine control module 11;

Frequencydeviation modulation module 15, the analog voice signal of the certain port of being responsible for the user side multiplexing equipment is transmitted carries out demodulation according to the frequency range of correspondence, obtains the analog voice signal alternating current component on these ports, sends to coupling module 14 then;

Power module 16 provides power supply for each above-mentioned module.

When be connected with the user side multiplexing equipment current terminal called the time:

Coupling module 14 after responsible analog voice signal with other simulation access device outputs removes DC component, obtains the analog voice signal alternating current component on the corresponding port, and coupling is delivered to frequencydeviation modulation module 15 and modulated;

Frequencydeviation modulation module 15 is responsible for the analog voice signal alternating current component on the said port is carried out the modulation of different frequency deviations, and it is modulated to a plurality of frequency ranges, and each band transmissions one road analog voice signal transfers to the user side multiplexing equipment through user outline.

The user side multiplexing equipment comprises,coupling module 22, ringing-current module 23, frequencydeviation modulation module 24, dislodging machine control module (transmitting terminal) 21,power module 25;

Coupling module 22 after the responsible on-hook signal that dislodging machine control module 21 is sent removes DC component, obtains the on-hook signal alternating current component, and transfers to the local side multiplexing equipment through user outline; After the responsible analog voice signal that dislodging machine control module 21 is sent removed DC component, frequencydeviation modulation module 24 was delivered in coupling; When called, analog voice signal, bell signal that the local side multiplexing equipment that frequencydeviation modulation module 24 is demodulated sends are coupled to ringing-current module 23;

Ringing-current module 23 is responsible for detecting said bell signal, and produces the ringing-current that is sent to terminal (phone); Analog voice signal directly is sent to counterpart terminal (phone); Because the alternating current component of bell signal is much larger than common voice signal, so realize the detection to bell signal through setting signal amplitude detection thresholding;

Frequencydeviation modulation module 24 is responsible for the analog voice signal of terminal (phone) is carried out the modulation of different frequency deviations; Simultaneously the local side multiplexing equipment is carried out demodulation through the analog voice signal that the user outline transmission comes according to the frequency range of correspondence, send tocoupling module 22 then; When called, the local side multiplexing equipment is carried out demodulation through the bell signal that the user outline transmission comes according to the frequency range of correspondence, deliver tocoupling module 22 then;

Dislodging machine control module (transmitting terminal) 21; Be responsible for terminal equipment (phone) is carried out feed; The dislodging machine state of sense terminals (phone); For the terminal (phone) of off-hook, givecoupling module 22 through corresponding port output analog voice signal, the on-hook signal that produces the corresponding special frequency for other ports sends tocoupling module 22;

Power module 25, top module provides power supply.

With an embodiment method flow of the present invention is described again below.

The implementation method based on simulating user line access multiplexing equipment that the present invention proposes mainly is divided into two kinds of situation: caller is done at the terminal that, connects the user side multiplexing equipment; Two., the terminal that connects the user side multiplexing equipment does called.

As shown in Figure 4, when caller is done at the terminal of connection multiplexing equipment:

Step 101, the user side multiplexing equipment powers on, and dislodging machine control module (transmitting terminal) is sent the on-hook signal of CF;

Step 102, terminal use's off-hook, the user side multiplexing equipment detects user's off-hook, and adjustment output voltage and electric current stop at the on-hook signal that CF is sent in the corresponding port;

Step 103, local side multiplexing equipment detect corresponding port CF on-hook signal and disappear, and the off-hook action is carried out in dislodging machine control module (receiving terminal) corresponding port.

Step 104, simulation access device corresponding port off-hook, calling subscriber's dialing.Begin normal calling service.

The user side multiplexing equipment carries out the modulation of different frequency deviations to the analog voice information of different ports, then modulation signal is transferred to the local side multiplexing equipment through user outline; The local side multiplexing equipment carries out the demodulation of related offset to the analog voice information of different ports.Otherwise the local side multiplexing equipment carries out the modulation of different frequency deviations, and the user side multiplexing equipment carries out the demodulation of related offset.

Step 105, caller end of conversation, terminal use's on-hook.

Step 106, the user side multiplexing equipment detects user's on-hook, adjustment output voltage and electric current, the on-hook signal of transmission CF;

Step 107, the local side multiplexing equipment detects the on-hook signal of corresponding port, and the on-hook action is carried out in dislodging machine control module (receiving terminal) corresponding port.

Step 108, the corresponding port on-hook of simulation access device, calling service finishes.

As shown in Figure 5, when the terminal of connection multiplexing equipment is done called:

Step 201, the user side multiplexing equipment powers on, and sends the on-hook signal of CF to the local side multiplexing equipment through each port;

Step 202, other customer calls connect the terminal of user side multiplexing equipment, by seeing bell signal off with said terminal corresponding port, are sent to user side multiplexing equipment through the local side multiplexing equipment through the simulation access device;

Step 203, the ringing-current module of user side multiplexing equipment is received bell signal according to signal amplitude judgement corresponding port, produces ringing-current and sees off to said terminal (phone);

Step 204, the ring of said terminal, its user hears off-hook after the ring;

Step 205, user side multiplexing equipment detect this user's off-hook, and the voltage and current at terminal is exported in adjustment, stop at the on-hook signal that sends CF on this user's corresponding port;

The on-hook signal that step 206, local side multiplexing equipment detect the corresponding port disappears, and dislodging machine control module (receiving terminal) is carried out the off-hook action in the corresponding port.

Step 207, the simulation access device is off-hook in the corresponding port, begins normal incoming call;

The user side multiplexing equipment carries out the modulation of different frequency deviations to the analog voice information of different ports, then modulation signal is transferred to the local side multiplexing equipment through user outline; The local side multiplexing equipment carries out the demodulation of related offset to the analog voice information of different ports; Otherwise the local side multiplexing equipment carries out the modulation of different frequency deviations, and the user side multiplexing equipment carries out the demodulation of related offset.

Step 208, end of conversation, this user's on-hook.

Step 209, the user side multiplexing equipment detect this user's on-hook, adjustment output voltage and electric current send on-hook signal through this user's terminal corresponding port to the local side multiplexing equipment;

Step 210, the local side multiplexing equipment detects the on-hook signal of corresponding port, and the on-hook action is carried out in dislodging machine control module (receiving terminal) corresponding port.

Step 211, the corresponding port on-hook of simulation access device, called service finishes.

Its operating process with aforesaid method is corresponding, and weak point is not given unnecessary details at this with reference to the narration of said method part one by one.

Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention; But as previously mentioned; Be to be understood that the present invention is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in invention contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of accompanying claims of the present invention.

Claims (8)

1. a simulating user line access multiplexing method is characterized in that, comprising:

During the one or more user terminal off-hook that is connected with the user side multiplexing equipment, the corresponding port that the user side multiplexing equipment stops at said user terminal sends on-hook signal;

After the analog voice information that the user side multiplexing equipment is sent from corresponding port said user terminal is carried out the modulation of different frequency deviations, be transferred to the reception of local side multiplexing equipment and carry out the inclined to one side demodulation of respective tones; After the analog voice information that said local side multiplexing equipment is sent from corresponding port other user terminals is carried out the modulation of different frequency deviations, be transferred to said user side multiplexing equipment reception and carry out the inclined to one side demodulation of respective tones;

After the said user terminal on-hook, the user side multiplexing equipment recovers to send on-hook signal at the corresponding port of said user terminal.

2. the method for claim 1 is characterized in that,

The user terminal that is connected with said user side multiplexing equipment sends separately on-hook signal through the user side multiplexing equipment to the local side multiplexing equipment through corresponding port.

3. method as claimed in claim 2 is characterized in that,

The on-hook signal that the local side multiplexing equipment detects said port disappears, and carries out the off-hook operation at said port;

The local side multiplexing equipment detects the on-hook signal of said port, carries out the on-hook operation at said port, finishes said business.

4. method as claimed in claim 3 is characterized in that, before the one or more user terminal off-hooks that are connected with the user side multiplexing equipment, also comprises:

Said other user terminals are called out the said user terminal that is connected with the user side multiplexing equipment, and the bell signal of a CF of being seen off by said other user terminal corresponding port is sent to said user side multiplexing equipment through the local side multiplexing equipment;

Said user side multiplexing equipment is judged the corresponding port according to the amplitude of said bell signal, produces ringing-current and sees the relative users terminal that is connected to the user side multiplexing equipment off; Said user terminal ring, user's off-hook.

5. a simulating user line access multiplexing system is characterized in that, comprising: user side multiplexing equipment and local side multiplexing equipment, wherein,

Said user side multiplexing equipment; Be used to connect one or more user terminals; When said user terminal off-hook, stop at its corresponding port and send on-hook signal; After said user terminal on-hook, recover to send on-hook signal, also be used for the analog voice information that said user terminal is sent from corresponding port is carried out being transferred to the local side multiplexing equipment after the modulation of different frequency deviations, and receive the analog voice information that said local side multiplexing equipment transmits and carry out the inclined to one side demodulation of respective tones at its corresponding port;

Said local side multiplexing equipment; Be used for the analog voice information that other user terminals are sent from corresponding port is carried out being transferred to said user side multiplexing equipment after the modulation of different frequency deviations, and receive the analog voice information that said user side multiplexing equipment transmits and carry out the inclined to one side demodulation of respective tones.

6. system as claimed in claim 5 is characterized in that,

Said user side multiplexing equipment is used for connected user terminal is sent to said local side multiplexing equipment through the on-hook signal separately that corresponding port sends.

7. system as claimed in claim 6 is characterized in that,

Said local side multiplexing equipment when detecting the on-hook signal disappearance of said port, carries out the off-hook operation at said port; When detecting the on-hook signal of said port, carry out the on-hook operation, finish said business at said port.

8. system as claimed in claim 7 is characterized in that,

Said local side multiplexing equipment; Be used for calling out at said other user terminals said during with user terminals that the user side multiplexing equipment is connected, the bell signal of the CF that will be seen off by said other user terminal corresponding port is sent to said user side multiplexing equipment;

Said user side multiplexing equipment is judged the corresponding port according to the amplitude of said bell signal, produces ringing-current and sees the relative users terminal that is connected to the user side multiplexing equipment off.

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