JPS58143693A - Digital network control method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a digital network control system, particularly to a digital exchange equipped with a network constituted by a plurality of time switches and a space switch that interconnects the core time switches. Regarding digital network control methods.

--) Technical Background Large-scale digital exchanges are equipped with time switches (T
The so-called T8T is composed of a space switch (8 switches) that exchanges time slots between time-division multiplex communication channels connected to multiple time-division switches.
Formal networks are mainly used.

(C) Conventional connections and problems FIG. 1 is a T diagram showing an example of a conventional digital network control system in this type of digital exchange. In FIG. 1, n time switch modules T8M1 to T8Mn and a space switch module 88M included in the network are shown. Each time switch module T8Mi (l is 1 to n1 or less) is connected to the space switch SSM through a time division multiplex communication path (hereinafter referred to as a jumper) JF and JBN. Each time switch module T S M i is a multiplex converter M
The space switch module 88M is equipped with a gate matrix, a GM, and control memories 80M1 to 80Mn. Time switch modi-le T8M1 call memo ljs
The MFi stores the information transmitted by each time slot of the incoming time division multiplex channel from the multiplex converter MPX in an address that is read out synchronously from the control memory TOMi, and then extracts the stored information in the order of the addresses. The signal is then sent to the jumper JFi, which is a time division multiplex communication path. The conversation memory 8MB1 is a jumper J which is an incoming time division multiplex communication path.
The information transmitted by each time slot of Bi is sequentially stored, set up according to the addresses sequentially output from the control memo IJTOMi, and transmitted to the multiplex converter DMPX as an outgoing time division multiplex channel. -Mankusui, Chimoji, -ru 8
The 8M gate matrix GM has a control memory 80M1 provided for each junction JBi for each time switch module T8Mj, and a control memory 80M1 for each time switch module T8Mj specified for each time slot.
Information is exchanged with the gate G corresponding to i in a conductive state. This time, the address Tx of the control memory TOMI of the switch module T8Ml is set to II M) -r:IJ8
The address Tg of MF1 and 8MB1 is stored, the address TR+' of 8MFn and 8MBn is stored in the address Ty of the control module TOMm of time switch module 1-Mn, and the address TR+' of 8MFn and 8MBn is stored. Le 8
Gate Gn is connected to address Tx of 8M control memory 80M1.
By storing the information specifying the gate Gln in the address 'l' z I of the control memory 80Mn, the call information of the call path
The data is stored in the address Tg of the MF1, and is stored in the address T' of the call memory 8MBn via the time slot Tg' of the jumper JFI, the gate Gin of the gate matrix GM, and the time slot Tz' of the junction matrix GM, and is stored in the address T' of the call memory 8MBn. The call information y of route #1 and route Y is stored in the address T' of the call memory 8MFn, and is transferred to the time slot of the jumper JFn, the call information y of the route Y, and
ff) Su, Ri x GM gate Gnl Junta JB
Call memory 8MB1 via time slot Tg of I
The information is stored in the address Tz of , and is transmitted to the communication path X, whereby communication paths X and Y are exchanged and connected, and information is exchanged. In such switched connections, the jumper time slot, which is path information, is a shared resource of the system, so it is inevitably managed by the call control processor system.
When adopting a call control load distribution method in a call control processor system, the bus control needs to be equally controlled from each call control processor CP, so the control memories TOMi and 50M1l are used.
The information setting for this is unified 1: fltll 11 sword style. In FIG. 1, the network processor NWP$, which is a unified network control unit, performs the entire process.

For example, if communication path X is the calling side communication path and communication path Y is the called side communication path, the called side information transmitted from the communication path Call control processor CP received via signal device 80B1 and signal processor 5op1 provided as
However, the called side communication route Y and jumper JFI, JBn,
Empty time slots on JFn and JBI) T and Tz' are determined by a known pair control method and transmitted to the network processor NWP via path BU8. The network processor NWP includes a control memory TOMI for the time switch module T8M1 accommodating the communication path x, a control memory TOMI for the time switch module T8M1 accommodating the communication path Y,
control memory T OM n .

Control memory 50M1 and 80Mn compatible with space switch module SSM jumper JBI and JBn
As mentioned above, various information is stored in the .

As is clear from the above explanation, in the conventional digital network control system, the control messages TOMi and T8M1 of all the time switch modules and the space switch module T8M1 and the space switch module T8M1 in the network are Control of the q80M5 is concentrated in the network processor NWP. Therefore small scale #*# i! This is a call control system that is decentralized to improve efficiency, ease of expansion, reliability, etc.

(dJ Object of the Invention The object of the present invention is to eliminate the drawbacks of the conventional digital network control system as described above and to promote the decentralization of the control system including network control.

(eJ) A digital exchange equipped with a network configured according to the invention (wherein, a network and control device is provided corresponding to each of the above-mentioned time switches, and an information transfer path with the above-mentioned 9-way switches is provided via the above-mentioned time switches. This is accomplished by connecting the network controller to the network controller, and controlling the connections in the time switch right and the nine-way switch on a call-by-call basis by the wrinkle network controller.

(f) 5AII of invention! A? J An embodiment of the present invention will be described below with reference to drawing ##.

FIG. 2 is a diagram showing a network control method. Note that the same reference numerals indicate the same objects throughout the figures. Also in FIG. 2, the network is composed of n time switch modules T8M1 to T8Mn and space switch modules 88M. Space switch module 88M is the first
Gate matrix GM and control memory 80M as shown
Each time switch module T8M1 has multiple converters MPX and DM.
PX1 Call memo Call memory 8g FI Kamawashi memory 8MFl
Control memo for! In addition to jTOMi, image memory 8IMi
is provided. The image memory i9IMj is! 2r#
It has the same configuration as the control memory lJ80Mi corresponding to the jumper JBi of the kJ switch module SSM, and is connected by the information transfer path L1. Further, a network control value @BNPj is provided corresponding to each time switch module T8Mi, which is the function of the signal processor 80Pi in FIG. 181 plus a network control function to be described later. As in Fig. 1, time switch timing model T8
From the channel X accommodated in M1 and to which the time slot Tx of the time division multiplex channel is assigned by the multiplex converters MPX and DMPX, the time division multiplex channel is accommodated in the time switch module TSMn and is assigned the time slot Tx of the time division multiplex channel by the multiplex converters MPX and DMPX. A call to the communication path Y assigned to the time slot Ty occurs, and the called party information transmitted from the communication path When the message is transmitted to the call control processor CP via . The call control processor CP then assigns the network control value @8NP1 to the time slot Tx.

Tx and jumper JFn, time slot TylT' and jumper JFI are transmitted to the network control device 5NPn, respectively. The network control value @8 N P 1 stores the time slot Tx in the control memo +7 TOM 1 in the corresponding time switch module Tf9Ml using the time slot Tx as an address, and also stores the time slot T! in the image memory 8IM1. The shunfter JFn is stored using the address as the address. Further, the image memory 8IM1 transfers the stored contents to the control memory yscM1 in the space switch module 8SM connected by the information transfer path IPI. As a result, the jumper JF is also assigned to the control memory lJ80M1 using the time slot Tz as an address.
n is stored. -10,000 network control i41 installation @8N
P stores the time slot Tx' with the time slot Ty as the address in the control memo VTOMn in the corresponding time switch module TaMn, and then transfers it to the image memory 8.
I M n l Stores the jumper JFI using the time slot Tg' as an address. Furthermore, image memory 8IM
I is a control memo in the 9-way switch module 88M connected by the information transfer path IPn! Transfer the stored contents to 780Mn〇As a result, the control memory 80Mn also transfers the shunfter JFI using time slot F Tl/ as an address.
is stored. As a result of the above, the time switch module T
Control memory 'I'OM1 of 8M1, control memory TOMn of time switch module T8Mn, and control memory 80M1 and 80 of space switch module 88M.
Since the same contents as in FIG. 1 are stored in Mn, the communication paths X and Y are exchange-connected and information is exchanged. For example, all time switch modules T8Mi in the network
and control memory TO of space switch module 88M
The control 141 of Mi and 80M1 is the network control device 8N corresponding to each time switch module T8Ml.
P i will each share the burden. Therefore, the call control processor O
P targets only the network control devices 8NP1 to 8NPn and performs information communication via the bus BU8.

Note that FIG. 2 is only one embodiment of the present invention, and for example, the exchange connection is a communication path X accommodated in the time switch module T8M11, and a communication path Y accommodated in the time switch module T8M port. Exchange connections made between arbitrary time switch modules T8Mi, including communication path interconnections within the same time switch module TSMi, are not limited to those that are clustered between Even in this case, the effects of the present invention remain the same. Furthermore, the configurations of the time switch module T8Mi and the space switch module SSM are not limited to those shown in the drawings, and many other modifications may be considered, but in any case, the effects of the present invention can be achieved. remains unchanged. Furthermore, the configuration of the network is not limited to that shown in the drawings, and many other modifications may be considered, such as dividing the time switch module into a plurality of modules, but in any case, the present invention will not be considered. The effect remains the same.

(2) Effects of the Invention According to the present invention, in the digital exchange, the network control device provided corresponding to each time switch controls not only the time switch but also the connection within the space switch for each call. As a result, the decentralization of the control system is maintained with respect to network control as well, and the economic efficiency of the small-scale configuration of the rotary switch, suitability for expansion scale, rationalization of function distribution, and improvement in reliability (σ) are coupled.

[Brief explanation of the drawing]

Broom 1- is a diagram showing an example of a conventional digital network control method, and FIG. 2 is a diagram showing a digital network control method according to an uninvented embodiment σ). In the figure, T8M1 to T8M ports are time switch modules, 88M is a 9-way switch module, JFI to JFn and JBI to JBn are jumpers, 80E1
8GEn to 8GEn are signal pipes, 8GPl to 8GPn are signal processors, NWP is network 1 controller, CP is call control processor, BO2 is bus, MM is memory module, 8
NP1 to 5NPn are network control e&'1lLs
X and Y are communication paths, MPX and DMPX are multiplex converters, SMFL to 8NPn and SMBI to 8!1
dBn is call memory, TOM17'7 to TOMn and 50M1 to 80Mo are memory, 8IM1 to 8
I M n is an image memory, GM is a gate matrix,
Gin and Gnl are gates, Tx, Ty, Tg and TxI are time slots, and IPI to IPn are information transfer paths.

Claims (1)

[Claims] In a digital exchange equipped with a network constituted by time switches of a number of values and space switches that connect the time switches, a network control device IIL is provided corresponding to each of the time switches, and information with the space switches is provided. A digital network that is connected to the network control device via a 2-hour switch in front of the transfer path, and that connects within the time switch and the space switch are controlled on a call-by-call basis by a network control mechanism. control method.