JPS6072397A - Discrimination control system of subscriber class - Google Patents

Abstract

PURPOSE:To reduce hardware of a time division exchange and facilitate maintenance work involved in change of subscriber class by mixing and containing subscriber lines of different kind of subscribers such as analog, digital etc. in the same line concentrator. CONSTITUTION:Analog subscriber lines 101a-101n and digital subscriber lines 102a-102n are connected respectively to analog and digital subscriber circuits 103a-103n, 104a-104n of a subscriber class discrimination control system. Time switches 109, 110 are connected respectively to communication highways 105, 106 connected to the circuits 103a-103n, 104a-104n. A received signal distributing circuit 111 connected to signal receiving devices 112, 113 and a transmitted signal selecting circuit 114 connected to signal transmitting device 115, 116 are connected respectively to signal highways 107, 108 connected to the circuits 103a- 103n, 104a-104n. Thus, hardware of the time division exchange is reduced and maintenance work involved in change of subscriber class is made easy.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention provides a time-sharing exchange for subscribers.

different subscriber lines (for example, analog subscriber lines,
The present invention relates to a subscriber class identification control method for accommodating a mixture of digital subscriber lines (such as digital subscriber lines) in the same line concentrator, economically identifying each subscriber class, and controlling subscriber circuits.

[Background of the invention] ′□ ・In recent years, with the advancement of digital technology and the increasing demand for non-telephone services such as facsimile communication services, data communication services, and image communication services, subscriber lines have also been digitalized. There is a growing trend to respond to social demands such as those mentioned above. - Figure 1 is a configuration diagram of an example of a conventional digital subscriber line exchange, in which 1α to 1rL are analog line concentrators that accommodate analog subscriber lines, and 2a to 2n are analog line concentrators that accommodate non-telephone services. We provide digital line concentrators and simultaneous division and distribution devices that accommodate subscriber lines.

Here, the subscriber line capacity of each of the above line concentrators 1α to ins' 2 (1 to 1) is determined by the economic multiplicity and division loss (when the subscriber line capacity is reduced) from the perspective of multiple processing technology. ) and the cost per terminal increases when the capacity decreases (
Increasing subscriber line capacity is disadvantageous. ), and for example, one with 1024 subscribers is selected as the subscriber line capacity.

In this conventional example, in the initial stage of introduction of non-telephone services, if there is demand for digital subscribers, albeit in an extremely small number, the required number of digital line concentrators 2α to 1n are available even if there are vacant terminals in the analog line concentrators 1α to 1n. 2n must be installed, and conversely, if the actual number of analog subscribers decreases due to the progress of digitalization of subscriber lines, vacant terminals will be created in the existing analog line concentrators 1α to 1, which will be uneconomical. There was a drawback.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art, to accommodate subscriber lines of different subscriber classes in the same line concentrator, and to identify the economic busyness of each subscriber class. It is desirable to provide a subscriber class identification control method that can perform busy-related control.

[Summary of the invention]

- The configuration of the subscriber class identification control system according to the present invention includes each subscriber circuit where various subscriber lines are terminated, and a signal receiving device and a signal receiving device corresponding to each subscriber class. Then, in the concentrator of the time-division exchange, which connects these with upstream and downstream signal highways, the subscriber class identification for each subscriber circuit is carried out from each subscriber circuit through the upstream signal highway. Transmit a signal to 5 to 5, select the corresponding signal receiving device and signal transmitting device accordingly, and control them to receive and transmit control signals regarding the joining-circuit via the 19.downward signal highway. It's been such a busy time.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram of an embodiment of the line concentrator using the subscriber class identification control system according to the present invention. FIG. 3 is a signal allocation diagram of the signal highway.

Here, 101ff to 101 and analog subscriber lines 102α to 102n are digital subscriber lines, 103α
~105rL is an analog subscriber circuit, 104α~10
4g is a digital subscriber circuit, 105 is an up communication highway, 106 is a down communication highway, 107 is an up signal highway, 108 is a down signal highway,
109 is an uplink time switch, 110 is a downlink time switch, 111 is a received signal distribution circuit 112 is a signal receiving device compatible with the analog subscriber class, 113 is a signal receiving device compatible with the digital subscriber class, and 114 is a transmitting device. A signal selection circuit 115 is a signal transmitting device corresponding to the analog subscriber class, and 116 is a signal transmitting device corresponding to the busy Digimo subscriber class.

This line concentrator is capable of accommodating up to 1024 digital subscriber lines and analog subscriber lines in total, but this number and subscriber type class are not limited to the above. Even if two or more types of subscriber classes coexist, this does not impede implementation of the present invention.

Each subscriber (corresponding to subscriber il!) has a physical accommodation position number (hereinafter abbreviated as LEN) K of its subscriber circuits 101α to 101m and 102α to 102g corresponding to LEN O to LIIN 1025. One of them is given.

The upper and lower communication highways 105 and the lower communication highways 106 are 8.192JfJ+/IX 8 parallel highways with 125 μ repetitions and 1024 multiplexes, respectively, and communication information from subscribers of LENo to l#1o25. (64 kb/JP audio signal, data signal, etc.) and communication information in the opposite direction are time-division multiplexed and transmitted. Then, according to a connection command from a control device (not shown), the time switch 1G? , the lines are concentrated at 11 ports.

On the other hand, subscriber circuits 103α to 105n, 104α to
The control signals from the 104
Similar to ots, K 8.192Mb / #
(consisting of 871 ways).

FIG. 3 (α) shows the signal allocation.

For analog subscribers, all signals from terminals such as call origination, answering, end of call, dial pulse, etc. are expressed by the presence or absence of a DC loop, so only the "loop" signal is assigned to signal highway 107A. For digital subscribers, "sync" indicating the status of the digital transmission is sent to signal highway 107B from the terminal to f
A digital subscriber line signal that arrives using the cloud slot signaling system is assigned a signal no.10 signal.

Further, the signal highway 107H is allocated for the subscriber class identification signal, and the signal content is "1" for the analog subscriber circuits 105α to 103n.
, 0'' for digital subscriber circuits 104α to 104n.

As described above, since the signal systems for analog subscribers and digital subscribers are completely different, dedicated signal receiving devices 112 and 113 are provided for each signal system. Both signal receiving devices 112 and 113 each have a maximum of 10
Multiplexing of signals related to 24 subscribers is possible, and the upper signal
7 is connected.

The received signal distribution circuit 111 distributes the signals on the upstream signal highways 107A to 107G to the corresponding signal receiving device 112 or 113 in LBH units according to the subscriber class identification signal on the above-mentioned upstream signal highway 117H.

Furthermore, one subscriber circuit 103α to 10 buttons, 104α to 104
The signal allocation of the control signals equivalent to the signals is similar to that shown in FIG. 6(A).

Control signals corresponding to the analog subscriber class are generated at the signal receiving device 5, and control signals corresponding to the digital subscriber class are generated at the signal transmitting device 116. Since the subscriber class identification signal described above is also received by the transmission signal selection circuit 114, the corresponding signal transmission device 115 or 116 is selected for each LEN by this signal K, and the signal transmission device 115 or 116 is selected for the downlink signal highway 108 (108/(~108H). (consisting of 8 highways).In this way, each subscriber circuit 10
Since the K control signals 5cL to 103n and 104a to 104a are distributed, each subscriber circuit takes in the control signal of its own LEH from the signal highway that is simultaneously divided and multiplexed to control the subscriber line and others.

Next, FIG. 4 is a block diagram of one embodiment of the received signal distribution circuit/transmission signal selection circuit in FIG. 2, and FIG. 5 is a time chart thereof.

Here, 201A to 201G and 2o2A to 202G are gates corresponding to upstream signal highways 107A to 1o711, 203 is a data selector, and 204, 205, 2
06 is a flip-flop, and 207 is a clock. In addition, in Figure 4, LEN O to 3 are analog subscriber class L.
EN 4,5,1023 is none for the digital subscriber class.

The control signals for the upstream signal highways 107A to 107G are based on the value (“1”, 0°) K of the subscriber class identification signal of the signal highway 107H, so that the gates 201A to 201G are open in the case of analog subscriber class. After-pressure signal line 117A retimed by flip-flop 204
117G to the signal receiving device 112 for the analog subscriber class; 202A to 202G open to the flip-flop 20
Signal lines 118A to tt8G after retiming at 5
Signal receiving device 11 for the digital subscriber class via e
Sent to 3.

On the other hand, subscriber circuits 103α to 104fL, 104α
The control signal for −104+z is a signal from the signal transmitter 115 for the analog subscriber class (g1 route 119
A-119H) and signals from signal transmitter 116 for the digital subscriber class (signal paths 120A-120A-119H).
120H) is selected by the selector 203 according to the value of the subscriber class identification signal (the one on the signal highway 107H). distributed.

〔Effect of the invention〕

As described above in detail, according to the present invention, it is possible to accommodate subscriber lines of different subscriber classes such as analog and digital in the same line concentrator, and moreover, it is possible to accommodate subscriber lines of different subscriber classes such as analog and digital. Since there is no need to store information in memory, significant effects can be obtained in reducing the hardware cost of the time division switch and simplifying maintenance work associated with changing subscriber classes.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an example of a conventional digital subscriber line exchange, FIG. 2 is a block diagram of an example of a line concentrator using a subscriber class identification control method according to the present invention, and FIG.
FIG. 4 is a block diagram of an embodiment of the received signal distribution circuit and route/transmission signal selection circuit, and FIG. 5 is a time chart thereof. 101α~1011L, 102α~102le...
...Subscriber lines 103α to 105n,' 104α to 10
4 Ru...Subscriber circuit IQ5, 106...
...Communication highway 107, 108...Signal highway 109, 110...Time switch 111...--Received signal distribution circuit 112, 113... Signal receiving device 114... -... Transmission signal selection circuit 115, 116... Transmission signal device 201A~ 201G, 202A~202G...
・・Gate 203・・・−・・・・・・・・・・・・・
...Data selectors 204, 205, 206...
・Flip 70 Tsubu 207・・・・・・・・・・・・・
・－・・・・・・Clock′! 1 Reading 2 Figure 1 3 Figure (0L) (I)) Abuse 4 Figure 11 1! 51 207 l■W■and silicon

Claims (1)

[Claims] 1. It has each subscriber circuit where various subscriber lines are terminated, and a signal receiving device and a signal transmitting device corresponding to each subscriber class, and there is an up and down signal highway between them. In the line concentrator of the time-division exchange, which is connected, a subscriber class identification signal relating to each subscriber circuit can be transmitted from each subscriber circuit through an upstream signal highway, and a corresponding signal receiving device is provided. A subscriber class identification control method, characterized in that the subscriber class identification control system selects a subscriber circuit and a signaling device, and controls the subscriber circuit so as to receive and transmit a control signal related to the subscriber circuit via an upstream/downstream signal highway. □