DE1267270B - Arrangement for deriving control information in telecommunications, in particular telephone switching systems with a centrally controlled switching network - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN 4057WW PATENT OFFICE Int. CI .:

H 04 m

EDITORIAL

H04q

German class: 21a3-38

Number: 1267 270

File number: P 12 67 270.7-31

Filing date: May 11, 1966

Open date: May 2, 1968

The invention relates to an arrangement for deriving control information in telecommunications, in particular telephone exchanges with a centrally controlled switching network.

In telephone exchanges it is necessary at different times of a connection before the establishment, during the establishment and during the existence of information about the type, the switching status, the authorization and the position number of the devices and connecting elements involved ίο to be made available to the central control for further switching measures. With the known Systems will obtain this information through a number of different switching measures. When activating an identifier assigner, the authorization of the interrogated connection organ is obtained. An identification device supplies the position or call number of a subscriber. the Device position numbers are in turn obtained by other interrogation devices. So to get the necessary To obtain control information, a number of different switching devices must be assigned, and the information obtained about it must then usually be saved so that it can be used for the entire duration the establishment and existence of a connection are available. The storage of this partial information can be avoided if these different switching devices and allocators for the different Connection phases are occupied again and again.

Even these brief explanations show that in the known systems the derivation of the Control information in a centrally controlled switching network requires a large number of switching operations. A further complicating factor is that the entire control information is made up of individual items of information is compressed, which in different places by different devices often also to different times.

Arrangements are known from German patents 1 103 988, 1 182 307 and 1 186 113, in which a data line that can be switched via the switching network is provided with identification pulses via access means can be supplied and in which the assignment means connected to this data wire are followed by those of the connected Submit control information assigned to the connection. This mainly the participant identification Serving arrangements are only in certain switching phases of the connection establishment suitable for deriving certain control information and also usually require from the usual switching elements of the system separate access smittel.

Arrangement for deriving
Control information in telecommunication,
in particular telephone exchanges
with centrally controlled switching network

Applicant:

Standard Elektrik Lorenz Aktiengesellschaft,
7000 Stuttgart-Zuffenhausen,
Hellmuth-Hirth-Str. 42

Named as inventor:

Heinz Schlueter, 7014 Kornwestheim;

Hilmar Schönemeyer, 7257 Ditzingen

It is the object of the invention to provide an arrangement for deriving control information in telecommunications, in particular to create telephone exchanges in which some sort of integrated allocator is created, in each switching phase of the connection setup directly from the switching elements of the System can be controlled and basically all of the connection concerned Provides control information to the central control. The arrangement for deriving control information in telecommunications, in particular telephone switching systems with centrally controlled Coupling matrix in which a data wire that can be switched via the switching matrix is provided with identification pulses via access means can be supplied and then in the case of the assignment means connected to this data wire deliver the control information assigned to the switched connection is according to the invention characterized in that the incentive seeker coupled to the subscriber circuits is used as the access means and a call number pyramid coupled to the subscriber-specific points on the data cores and position number pyramid are used that as allocation means to the subscriber-individual Points of the data wire allocator for the phone number, for the position number and the Identifiers of the subscribers and, at the connection set-specific points, an assigner identifying the type and position number of the connection sets are switched on and that all allocation means via a common information channel

809 574/49

3 4

to an evaluation device of the central control when the central control ZSt are the subscriber groups. In this way, the central circuit TS can use the position number pyramid PP control with an identification pulse to control all information or directly via the call number pyramid RP via the linked to the connection path.

pelten participant and connection set supplied 5 It does not matter whether the central control ZSt . It is particularly advantageous that the identification pulse Id supplies one or more identification pulses according to the switching phase of the connection points A, B, C or E. In each connection establishment, especially in those involved, the evaluation AW in the central switching elements of the system are switched on and control ZSt via the common information system. Thus, with an outgoing connection, the incoming channel IK can deliver all the associated information, stimulus seekers when a calling part is identified, initiate the positioning information when a position number assigner PO at the data client is derived from the required control wire d of the subscriber circuit TS delivers the information, or when it arrives tion number of the subscriber line, while the connection can, based on the selected call number, the call number assigner RO supplies the call number of the mer via the control of the call number pyramid 15 subscriber circuit TS . Finally, at the same time, the position number and the identifier (with this identification an identifier assigner KO all authorization) of the called subscriber obtained the subscriber-related identifiers, such as being calculated. activities, etc., from. The network allocators NO 1 and NO 2

In order to obtain unambiguous control information about the course of the connection via the coupled, the individual connections are indicated in the one-at-a-field KN and the connection set allocator VSO time method with identification pulses identifies those involved in the connection. However, it is entirely possible to use the same binding clause VS.

at the same time several connection points of a connection

To supply identification pulses. are explained in more detail.

A connection set of the system is input and 25

on the output side with the switching network of the system. Outgoing connection

bound. So that the course of the connection before and

can be clearly identified according to the connection set. The

The can, provides a further development of the invention, incentive seeker AzS the stimulating subscriber schald that a connection set input and output side 30 device TS and marks the subscriber circuit TS is connected to the data wire and that these parts are connected directly to the data wire d. After the data wire has been connected separately from the central control, the incentive seeker AzS with the central control can be switched on. control ZSt , the identification pulse Ida Is a system in several control groups is fed to the connection point A. This pulse is subdivided, then the arrangement according to the invention can access the connection via the subscriber circuit TS directly to derive the control information via data wire d . The central control Zst has a common integrated allocator, so that the positions are realized via the information channel IK that, in the case of a system divided into control groups number and the identifiers of the subscriber circuit, a common information TS and, on the basis of this information, sets a channel and the control groups to be different. 40 connection path to a connection set VS. which times serving identification impulses are provided for the incentive seeker AzS instead of an unmitteledler. Baren marking of the subscriber circuit TS the The invention is explained in more detail with reference to the drawings position number in any way as an address. It shows available, then, when evaluating FIG. 1, a basic circuit diagram of the arrangement according to the position number pyramid PP can be set, according to the invention. The central control ZSt then gains the position F i g. 2 to 4 the coupling of an identification number and the identification of the subscriber folder, a position folder and a call number switch TS by supplying an identification number to the subscriber-specific data pulse Idb via the position number pyramid, 50 PP, which the pulse Idb of the data wire d this Part-F i g. 5 the control and identification of a slave circuit TS supplies.

Connection set, if in the system the phone number of the part

Fig. 6 the identification in the switching network and receiver circuit TS at the same time their position number,

F i g. 7 the arrangement according to the invention in a then the points d and d 'are identical, and it is

System divided into control groups. 55 only one of the pyramids PP or RP is provided. Of the

In Fig. 1, the arrangement is schematically after the point is firmly connected to the point ei '. White

Invention shown. When establishing a connection via the call number and the position number of one of the coupling stages KS1 and KS 2 of the coupling field eldeslöV subscriber circuit TS from each other, then you can

the points d and d ' can be arbitrarily assigned parallel to the speech or control cores.

Data wire d through which a connection 60 In the arrangement according to the invention, a connection between the connection set VS, the part-wire connection is sufficient for this assignment.

subscriber circuit TS and all on a connection This assignment connection can exist in both devices involved. The central control ZST, directions are identified.

z. B. a marker, therefore has an interface,

ζ. B. an incentive seeker AzS or a Registerkop 65 incoming connection

pelfeld AnS, access to the subscriber circuit TS,

the connection set VS and all other devices involved in incoming connections and no connection. This also applies to the order between position numbers and call number

mern is identified via the position number pyramid PP without direct connection of the incentive seeker AzS to the subscriber circuit TS .

In the case of an assignment between position numbers and call numbers, the call number pyramid RP is set for incoming connections. The central control ZSt feeds the identification pulse Idc to the connection point C and thus to the number pyramid RP . The central control ZSt receives the position number of the called subscriber via the routing dd ' and the position number allocator PO. At the same time, the identifiers can be obtained via the identifier allocator KO via the output of the number pyramid RP . In principle, it does not matter whether the identifiers are tapped on the position number side or the call number side of the routings. After evaluating this information, the connection to the called connection is established via the central control ZSt. If the activated subscriber circuit TS is busy, then its data wire d is connected through to a connection set VS. In addition to the item number and the identifiers of the desired party central control ZSt receives via the allocator NOL and NO 2 and VSO and the already established connection path and the used connection kit VS. From this it can be deduced on the one hand that the called subscriber circuit TS is busy, on the other hand z. B. in telephone private branch exchanges the statement can be obtained therefrom whether the subscriber circuit TS is connected to an internal connection set or to an exchange connection set. Depending on this, z. B. intrude the attendant console. .

If it is an existing connection z. B. to a connection in a private branch exchange and the operator wants to know with which subscriber circuit TS a certain connection set is connected, then the central control ZSt switches on the connection point E the identification pulse Ide . The call number of the connected subscriber circuit TS is then given via the connection set VS, the connected data line d, the subscriber circuit TS, the routing dd ' from the call number allocator RO to the common information channel IK . The central control can take effect here.

In telephone exchanges, a number of subscriber IDs are only evaluated when a calling subscriber has submitted his dialing information and the called subscriber is busy. The identifier of the calling subscriber is identified again via the connected data line. It is checked whether the calling subscriber circuit TS is authorized to switch. In this case, the identifier of the calling subscriber circuit TS does not need to be temporarily stored in the connection set VS or in the register. There are various operating cases in which such a subsequent identification of the identifier takes place.

If it is to be checked which terminals are interconnected via which switching matrices and intermediate lines of the switching network KN , then the identification pulse is fed to the devices involved. The information given by the network allocators NO 1 and NO 2, which identifies the switching matrix and the number of the intermediate line, ie the addresses of the switching elements involved , then appear on the information channel IK. Such identification of switching devices is particularly important in the case of partially triggered connections.

When connecting incoming connections to a busy subscriber circuit TS, it is often necessary to check how many connections have already been connected. This can prevent further connections from being activated. In this case, after the subscriber circuit TS has been activated, the identification pulse is sent to the data wire d via the end pyramid PP or RP . The number of connections connected to this data wire d in the end switching matrix and also the type of occupancy of the subscriber circuit TS are obtained via the information channel IK.

In the F i g. 2 to 4 show the connection of the identifier assigner KO, the item number assigner PO and the call number assigner RO to the subscriber-specific data line d . All figures show that the control of the allocators KO, PO and KO can take place via the incentive seeker AzS and the data wire d from the switching network KN . In all cases, diodes are shown as allocation elements. The subscriber-specific data cores d can also be controlled via the position number pyramid PP and / or the call number pyramid RP. All of the information identifying the relevant subscriber line TS can be obtained with each activation. At the output of the allocators PO and RO , the information is in decadic form, as indicated by the reference symbols T, H, Z, E , or in coded form.

In Fig. 4 shows the call number pyramid RP , the outputs d 'of which are routed according to the assignment with the data cores d of the subscriber circuits TS . These data cores d are also from the outputs of the position number assigner PO according to FIG. 3 reached.

F i g. 5 shows that a connection set VS is connected to the switching network KN on the input and output sides. The data cores dE and dA can be controlled individually, as indicated by the two control cores coming from the central control ZSt. In any case, the type and position number of the connection set is fed to the common information channel IK via the connection set allocator VSO connected to the connection set VS.

The switching matrices KVn and KVm according to FIG. 6 are part of the switching network KN. If the intermediate lines da 1, ab 1 and de 1 are involved in a connection, then contact 1 in the switching matrix KVn and KVm is closed. The assigned wires in the data network are also interconnected. If an identification pulse comes from the direction of the connection set VS or the subscriber circuit TS on the data wire d , then this also reaches the switching matrices KVn and KVm. In the switching matrix KVm the identification potential is at the diodes Dm 11 and Dm 12. The position number of the switching matrix KVm is obtained via the diode DmIl and the number of the occupied intermediate line dbl is obtained via the diode Dm 12. The multiple of all diodes of the same switching matrix is at the position number point and the multiple is at the link number point.

times all diodes of the outputs of the same number dei coupling multiples of this stage.

If several control groups work independently of one another in a telephone exchange, then, as shown in FIG. 7 shows that a common, integrated allocator can be used via an identification pulse distributor Id-IV. The impulse distributor gives only one control group ZStI to ZSt 4 access to the integrated allocators of the control groups. In this way it is possible for each control group to obtain information from the various parts of the system via a common information channel IK. As in Fig. 7 is indicated, the identification pulses 1 to 4 are cyclically fed to the control groups by the pulse distributor.

The number of subscribers involved in a connection can be determined in a simple manner with the allocation means NO1 and NO 2 (FIG. 1). If the subscriber-specific data wire d is supplied with an identification pulse, then the number of connections going out from this subscriber line automatically results from the identities of the switching matrices and intermediate lines.

Claims (7)

Patent claims: 1. Arrangement for deriving control information in telecommunications, in particular telephone switching systems with a centrally controlled switching network, in which a data wire switchable via the switching network can be supplied via access means with identification pulses and in the case of the assignment means connected to this data wire thereupon emit the control information assigned to the switched connection, characterized in that are that the access means of the coupled to the subscriber circuits (TS) incentive viewfinder (AZS) and an individual subscriber with the points of the data wires (D) coupled to said telephone number pyramid (RP) and item number pyramid (PP) used in that the allocating means to the subscriber-points of the data wire ( d) Allocators for the call number (RO), for the position number (PO) and the identifiers (KO) of the subscribers and an allocator (VSO ) identifying the type and position number of the connection records (VSO) at the connection set-specific points ) are switched on and that all allocation means (PO, RO ₁ KO, VSO) are connected to an evaluation device (AW) of the central control (ZSt) via a common information channel (IK) . 2. Arrangement according to claim 1, characterized in that the intermediate lines (db 1, dbl) of the data cores (d) in the switching network (KVn, KVm) via allocation means (NO 1, NOl) are guided to the common information channel (IK) and that the allocation means (Dm 11, Dm 12, Dm21, Dm 22) identify the position number of the switching matrix and the number of the intermediate line (Fig. 6). 3. Arrangement according to claim 1, characterized in that the identification pulses (Ida, Idb, ldc, Ide) are switched on in the one-at-a-time method. 4. Arrangement according to claim 1 or 3, characterized in that at the same time several connection points (A, B, C, E) of a connection an identification pulse (Ida, Idb, ldc, Ide) can be fed. 5. Arrangement according to claim 1, characterized in that a connection set (VS) input (dE) and output side (dÄ) is connected to the data wire (d) and that these parts of the data wire can be controlled separately from the central control (ZSt) ( Fig. 5). 6. Arrangement according to claim 1, characterized in that in a system divided into control groups (ZStI, ZStI, ZStZ, ZStA) a common information channel (IK) and an identification pulse distributor (Id-IV) serving the control groups at different times are provided (F i g. 7). 7. Arrangement according to claim 1 or 2, characterized in that the number of connections connected to a subscriber-specific data line (d) is identified by the allocation means (NOl, NO 2) provided in the switching matrix (KVn, KVm). Considered publications:
German patent specifications No. 1103 988, 1182 307, 1186113. For this purpose 2 sheets of drawings 809 574/49 4.68 © Bundesdruckerei Berlin