JPH05502354A - Method and apparatus for flexible multiplexers - 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] METHOD AND APPARATUS FOR FLEXIBLE MULTIPLE A method and apparatus for a multiplexer.

A flexible multiplexer is used to control the time slot of digital multiplex signals. Allows arbitrary grouping and distribution of items. )1noxypur multibrek The server is capable of forming connections between connection units on the subscriber side and grouping and separation between connection units and trackside connection units, and It is possible to perform channel distribution between the line side connection (UNISO) and the line side connection.

A multiplexer device of this type is described in the publication P0MX-Programmierba rer Digital multiplexer fuel die 2-Mb it/5-Netz-ebene”, Siemens AG, BereiCII Uebertra-gungssyst, eme, Po5tfach 700 073. Be5t, all-Nr, A42020-S154-Al-2-29 It is shown.

In the case of the connection of a significantly large number of connection units that should be able to be connected completely through each other , correspondingly large number of call/data and signaling multiplex signal lines. Problems arise when attaching the product. Prior application proposal (Europe) Patent Application No. 8910805 According to Publication No. 90, all subscriber side connection units and line side connection units are instead of being routed to the multiplex signal line of the subscriber, the Each line-side connection unit has two voice/data signals for both transmission directions. Connected to the call/data switch frame via multiplex signal lines, Furthermore, via two signaling multiplex signal lines, also for the image transmission direction. When connected to a signaling switch frame, the multiplex signal line The road is reduced.

For one time slot assignment, for example, 64 pins 1-/S signals or A signal with a bit rate multiple times that of . In the latter case, multiple per 71 nodes bytes are cross-connected via switch frames. In this case, If these bits are different in time on the first output side of the switch frame, Once inside the frame, Application Note Me@ory Time 5w1tch Large”, PEB2047, Siemens AG, 12/89 As shown in the figure, temporal compensation is performed as follows. That is, at least one The byte that should normally be in the first frame is not The W12 output of the system is guided back through a loop to another input. This results in This byte is delayed by one frame duration in this switch frame. , Finally, all bytes at the first input end of the switch frame are temporally identical. reaches into the same subsequent frame. This naturally makes it possible to effectively use switches. The number of bytes transmitted in each loop can be reduced. must pass through another switching point.

The flexible multiplexer includes a predetermined number of connection units m- Configured for having units with several channels. But this kind The connection units of can include different numbers of channel units. the result , a large number of connection units are also formed in any case for the multiplexer.

However, in this case the switching network always operates the maximum number of channel units. It is necessary to design it so that it can be used.

The problem of the present invention is to first improve byte integrity without having to change the basic equipment on a commercial basis. Second, the number of connection units can be increased as necessary.

This problem has been solved according to the present invention by the structure set forth in claim 1. this The method and the device for implementing it are set out in the claims below.

With this method, as the number of connected units increases, the smaller switch frame I wonder if the switch frame will be replaced by the larger switch frame (and the smaller switch frame). switch frame is complemented by another frame.

Therefore, with this method, the extended switch frame is separated from the main switch frame. It can be stored and used as needed. In addition, the channel can also be can be delayed and through-connected as desired. Non-delay channels are e.g. should have only one byte per system and be interconnected with as little bus time as possible. A signal is transmitted. The delayed channel is Can be used for 64K bit/S signal. In this case, the number of connected units is small. additional connection possibilities that are not used or available for loop circuits. Additional switching points are used.

The basic device is a rack, and this rack, along with the switch frame, is used for this main switch frame. is filled by a connecting unit connected to the system. More for expansion The expansion switch frame is housed inside this. On the other hand, the connection unit For this reason, the connection unit is inserted into the second rack from which the expansion switch connected to the frame. Loops are installed only on expansion switch frames. It will be done. The purpose is to ensure that the capacity of the main switch frame is available for direct feed-through connections. This is because the number of available switching points can be maintained. Inside the main switch frame If you have to set the switching point for the loop in Only a small number of connected units can be operated (and the first rack is partially empty). This will result in

To implement this method, calls/data and signaling between both Only four symmetrical buses are required for multiplex lines, plus Only four asymmetric buses are needed between the mating main and expansion switch frames. do not have. The latter is advantageous, since the plug connector is This is because it is necessary to have only half the number of contacts.

Next, embodiments of the present invention will be described using the drawings.

FIG. 1 shows a block diagram of a 1/xplex multiplexer proposed in the prior application.

FIG. 2 shows a connection unit on the subscriber side according to the proposal of this earlier application. Figure 3 is here Figure 4 shows the line side connection unit proposed by the applicant. 1 shows a block diagram of a multiplexer. Figure 5 shows the main and extended switch frames. A block diagram of the system is shown. Figure 6 shows this main and expansion space with commercially available integrated circuits. Indicates switch frame.

FIG. 1 shows a block diagram of a flexible multiplexer as proposed by the prior application.

This multiplexer is connected to connection units T7a, 8a, 9.10 and 1 on the subscriber side. 1. Line side connection unit L12, 13 and 14° control 15. For calls/data Main switch frame 16a.

Signaling main switch frame 17a1 Call/data buses 18a and 1 9a, signaling bus 20a and 21a1 call/data multiplex Signal lines 22a, 22d, 23a and 23d, multiplex for signaling Signal lines 24a, 24d.

25a and 25d and a control bus 26. This control bus Side connection units 1-7a, 8a.

9.10 and 11 and all main switch frames 1.6a and 1 7a. The symbol S/D indicates the number of calls or calls in one time slot. or data signals can be transmitted. Symbol Kz stands for signaling signal Was.

Before explaining the operation of the device shown in FIG. 1, let us explain the subscriber side connection unit T in FIG. Introducing the connection unit L on the track side in Fig. 3.

j [Figure 2 shows eight channel units K7 time/space switching device-27 and 28 and a space/time switching device - 29 and 30. Nitl-T is shown. Channel units l-K are, on the one hand, time/space switching interconnected with switching devices - 27 and 28, and on the other hand a space/time switching device. -29 and 30 are connected to each other. This is indicated by the same three-digit number. This is indicated by the terminals being connected together. time/space space Switching device-27 and 28 and space/time switching device-29 and 30 is set and adjusted via control bus 26. The bit rate is n 64 bits. The input signal of /S is converted to n bytes per frame.

FIG. 3 has a frame multiplexer 31 and a frame demultiplexer 32. A multiplexer signal is indicated at M, which indicates the line-side connection unit L. this The multiplexer signal can be, for example, a 2048 bit/S signal. child In the 16th frame of the signal, two 4-bit signaling words each transmitted for the channel. This signaling word is a byte length format. Converted to Gunaring language.

In FIG. 1, subscriber connection units T are connected in groups. For example, The subscriber side connection unit l-7a and 8a and another subscriber side connection unit (not shown) The pieces T constitute one group. This group has 4 multiplayers each. Main switch frames 1.6a and 17a via signal signals 22a to 25a. It is connected to buses 18a to 21a led in a star shape. line to these buses A roadside connection unit L is also connected. The track side connection unit 12 is, for example, They are connected via multiplexer signal lines 226 to 25d. main switch flyer Buses 16a and 17a and buses 18a to 21a are components of the controller CTR. External input side 1 and external output side 2 are provided for some call/data signal S/D. It is being External input side 3 and external output side 4 for signaling signal KZ There are no plans to set one up. For multiplex signal M, external input 5 and external output 6 are It is provided. The main switch frames 16a and 17a are integrated circuits PE82. 040* data (* P E B 2047 is realized, and the connection unit T and L include, for example, an integrated circuit FEB2055.

FIG. 4 shows a flexible multiplexer according to the invention. This multiplexer In the frame I, the known controller CTR shown in FIG. 1 and the subscriber side connection unit are installed. kits 7a and 8a, track side connection units 12 and 13. Control device 15, then and a switching network expansion device SNE according to the invention. Furthermore, inside frame II includes subscriber side connection units 7b and 8b and 7C and 8c.

The switching network expansion equipment SNE is selectively configured to have different sizes, respectively. / data expansion switch frame 16b and signaling expansion switch frame 16b 17b. The buses 18a to 21a already shown in Figure 81 are The expanded switch frame 1 is asymmetrically connected to the extended switch frame 1 via the frame interfaces 45 to 48. 6b and 17b. Additionally this extended switch frame Buses 18b-21b are connected to the inner side via symmetric rack interfaces 35-38. being led to. With this interface, the multiplex signal line 22b~ 25b and 22c to 25C are subscriber side connection units 7b, 8b and 7c.

It is led outward to 8c. Furthermore, delay bus loops 33 and 34 are connected. ing.

FIG. 5 shows a call/data switch frame 16b with a call/data expansion switch frame 16b. This block diagram also shows a block diagram of the main switch frame 16a. A 12-inch frame for signaling with an expansion switch frame 17b for signaling. This also applies to frame 17a. Their reference symbols are shown in parentheses. or signal in the speech/data multiplex 1/x input signal S/D-EMl. Time slot in multi-nox input signal Kz-EMl for ring switch frame for calls/data], 6a or main frame for signaling. The voice/data multiplex output signal S/DA is transmitted via the first frame 17a. M1 or signaling, multiplex output signal, z-A to M1, or call/data expansion switch frame 16b or signaling expansion switch Speech/data multiplex output signal S/D-AM via switch frame 17b 2 or S/D-AM3 or signaling multiplex output signal Kz- For one call/data connected to A M2 or Kz-A M3 Multiplex input signal S/D-EM2 or signaling multiplex input Power code Kz-EM2 does not have call/data expansion switch frame 16b Call/data multiplexing via the signaling extension switch frame 17b! /X8 signal S/D-AMI or signaling multiplex output signal K z　-A　M　or call/data multiplex output signal S/D-AM2 or or S/D-AM3 or side ring multiplex output signal Kz-A, M 2 or Kz - A M 3 are cross-connected.

The time slots of the multiplex output signals S/D-AM3 and Kz-AM3 are , via bus loops 33 to 34, which can consist of one or more lines, Frame connection via multiplexer signal S/D-EM3 or Kz-EM3 time is delayed. You can also construct multiple loops along the dashed arrows. Ru.

Figure 6 shows a device in which the block diagram shown in Figure 5 is realized using an integrated circuit FEB2047. show. Symbols 16a, 39.40 and 41 for calls/data and The symbols 17a, 42, 43 and 44 are given to the guna) nongs. Star The numbers with markings indicate how many S/D- or Kz-multiplex signals Indicates whether the tracks run parallel to each other. In this case the numbers 512 and 1024 -The belonging value in parentheses- indicates that the bus 18a to 21a for bit/S signals is connected to 64. and the possible number of channels in 18b to 21b. Asymmetric switch frame buses 18a-2 of the controller CTR via system interfaces 45-48. 1a is connected to the switching network SNE.

IG 3 FIG 5 Special table Hei 5-502354 (7) FIG 6 Summary book The individual n bit rates (n 1..2.3) on the external input and output side Flexible multiplex for calls, data and signaling signals with...) Add another connection unit h (7b, 7c) to the plexer without any changes in the 5 basic devices (1) , 8b, 8c) assigned to force.

This connection unit enables the following expansion switch frames <16b, 17b) Make it. In other words, in this extended switch frame, the connection unit of the basic device (1) The multiplex signal (S/D- EM 1, Kz - EM 1) Combined calls/data and signaling signals (S/D-ESI, Kz-ESI) and another connection unit. The multiplex signal (S/D-EM2 ．． Kz-EM2) combined call/data and signaling signals (S /D-ES2. Kz-ES2) is cross-connected to create a new multiplex. As a signal (S/D-AMI, S/D-AM2.Kz-AMI, Kz-AM2) , another connection unit is also connected to the connection unit (7a, 8a, 12.13) of the basic device (1). Also sent to knits (7b, 7c, 8b, 8C) 6 Out from one frame multiple bytes are sent in two different frames in time during a cross-connect. If the temporal RM reaches the output of the extended switch frame (16b, 17b) This can be achieved by a frame duration delay through the bus loop between the force side and the input side. Ru. A flexible multiplexer can handle any of the digital multiplexed signals. Allows for gsorbization and distribution (Figure 4).

Procedural amendment (voluntary) October 6, 1992

Claims (9)

[Claims] 1. It is a flexible multiplex method, in this case n (n=1, 2, 3,...) first call/data input signal (S/D-ES1) at the first bit rate. and the first signaling input signal (Kz-ES1) is a first call/data multiplex input signal at a second bit rate; (S/D-EM1) and multiplex input signal for signaling (Kz-E M1) for mixed call/data and signaling Said separate call/data (S/D -EM1) and signaling (Kz-EM1) , in the second allocation of time slots, the 1 call/data (S/D-AM1 ) and the first signaling (Kz-AM1) frequency multiplex output signal. connection, and also the first call/data (S/D-AM1) connection. and signaling (Kz-AMl), the multiplexed output signals for and signaling for first speech/data (S/D-AS1) with a bit rate of (Kz-AS1) split or mixed call/data into output signals for and signaling multiplex signals (M) in the form of In a pull multiplex method, n second calls/data of the first bit rate input signal (S/D-ES2) and second signaling input signal (Kz-ES2) 2) for the second bit rate in the first extended time slot allocation. to the multiplex input signal for speech/data (S/D-EM2) and the second signal to the multiplex input signal (Kz-EM2) for 1 call/data (S/D-EM1) and signaling (Kz-EM1) The multiplex input signal is transmitted to the second (S/D -AM2) to 3rd (S/D-AM3) for calls/data and 2nd (Kz- AM2) or third (Kz-AM3) signaling multiplex output signal. In addition, the second call/data (S/D-EM2) and The multiplex input signal for signaling (Kz-EM2) is In the second assignment, the first call/data (S/D-AM1) and signaling (Kz-AM1) and/or the second (S/D-A M2) to 3rd (S/D-AM3) for calls/data and 2nd (Kz-AM2) ) to the third (Kz-AM3) signaling multiplex output signal connection, and also a second call/data (S/D-AM2) and The multiplex output signal for signal ringing (Kz-EM2) is for second call/data (S/D-AS2) and signaling (Kz-AS2) ), and the third call/data (S/D-AM3) and third signaling (Kz-AM3) multiplex output signals. For the 3rd call/data (S/D-EM3) in the 2nd time slot allocation and multiplexed signals for signaling (Kz-EM3) for each time slot. The method is characterized by passing the loop once and delaying the duration of one frame. Flexible multiplex method. 2. The first bit rate is selected to be 64Kbit/s or smaller. and the second bit rate is 2048, 4096 or 8192 and 1 544,3088 or 6176 Kbits/S, according to claim 1. the method of. 3. A flexible printer for carrying out the method set forth in claim 1 or 2. a first subscriber side connection unit (7); a, 8a, 9-11), and the connection unit is equipped with an external call/data input side ( 1), external call/data output side (2), external signaling input side (3), and external a channel unit (K) with a signaling output (4) for It is further provided with a track side connection unit (12-14), and the connection unit is for external use. Multiplex signal input side (5) and external multiplex signal output side (6) further comprising a controller (CTR), the controller is a call/data a primary call/data switch frame (16a); The first line consists of multiplex signal lines (22a, 23a; 22d, 23d) for External connection units (7a, 8a, 12, 13) are connected via paths (18a, 19a). ), and the switch frame is connected to the main switch for signaling. frame (17a), the switch frame includes a first signaling multiplex frame (17a). Connected via path consisting of Rex signal lines (24a, 25a; 24d, 25d) It is connected to the units (7a, 8a, 12, 13), and is further connected to the control device (15 ), the control equipment connects all subscriber side connection units via one control path (26). knit (7a, 8a, 9-11) and main switch frame (16a, 17a) ) in a flexible multiplexer of the type connected to a second subscriber A side connection unit (7b, 8b; 7c, 8c) is provided, and the connection unit are external call/data input side (1), external communication/data output side (2), external A channel with an external signaling input (3) and an external signaling output (4) Equipped with a channel unit (K) and an expansion switch frame for calls/data ( 16b), and the switch frame has a third call/data multi The third path (18 , 19) to the second subscriber side connection unit (7b, 8b; 7c, 8c). and also the first call/data connection via the first path (18a, 19a). Connected to multiplex signal lines (22a, 23a; 22d, 23d) Furthermore, an extended switch frame (17b) for signaling is provided. The switch frame is connected to the fourth signaling multiplex signal line (24b, 25b ;24c, 25c) to the second subscriber side via the fourth path (20b, 21b) consisting of It is connected to the connection unit (7b, 8b; 7c, 8c), and is further connected to the second path (7b, 8b; 7c, 8c). The first signaling multiplex signal line (24a, 21a) , 25a; 24d, 25d), and is connected to Kira's call/data expansion switch. switch frame (16b) and a signaling extended switch frame (17b). ) for calls/data (33) and signaling ( 34), and a delay loop for the second subscriber side connection unit (7b , 8b; 7c, 8c) and call/data expansion switch frame (16b) and and signaling extended switch frame (17b) via the control path (26). A flexible multiple that is connected to a control device (15) Lexa. 4. First subscriber side (7a, 8a, 9-11) and line side (12-14) connections unit, main switch frame for voice/data (16a), main switch frame for signaling switch frame (17a), extended switch frame for calls/data (16b), and a signaling expansion switch frame (17b) installed in the first frame (I). Furthermore, the second subscriber side connection unit (7b, 8b; 7c, 8c) The flexible multiple according to claim 3, which is provided in the second frame (II). Lexa. 5. One or two insert plates are provided in the first rack (I), and the Selective call/data expansion switch frame (16b) and The signaling extended switch frame (17b) or the first subscriber side connection unit The knits (7a, 8a, 9-11) or the track side connection unit (12-14) 5. The flexible multiplexer of claim 4, wherein the flexible multiplexer is housed in a flexible multiplexer. 6. The subscriber side connection units (7a-7c, 8a-8c, 9-11) including a spatial switching device (27), the switching device being a telephone/data External call with multiplex output signal (S/D-AM1, S/D-AM2) selected / data output side (2), and a second time/space switching device (28 ), the switching device includes a signaling multiplex output signal (Kz- AM1, Kz-AM2) with the selected signaling output (4) and includes a first space/time switching device (29), the switching device being connected to an external Call/data multiplex input signal with call/data input side (1) selected (S/D-EM1, S/D-EM2), and the second empty slot. a time/time switching device (30), the switching device being connected to an external signal; Signaling multiplex input signal (Kz- 4. The flexi according to claim 3, which is connected to a time slot of EM1, Kz-EM2). pull multiplexer. 7. The track side connection unit (12-14) includes a frame multiplexer (31). The frame multiplexer outputs the voice/data multiplex output signal (S/ D-AM1) and signaling multiplex output signal {Kz-AM1) It is converted, framed and sent to the external multiplex signal output side (6), and then a frame demultiplexer (32), which demultiplexer Separates voice/data and signaling multiplex signals (M) for further voice calls /Multiple for data (S/D-EM1) and signaling (Kz-EM1) 4. The flexible multiplexer of claim 3, wherein the flexible multiplexer outputs a flex input signal. 8. Main switch frame for calls/data (16a) or signaling (17a) Expansion switch for calls/data (16b) or signaling (17b) frame and each two asymmetric switch frame interfaces (45, 4 6 to 47, 48) for call/data (16a) or signaling. (17a) Connected to the input and output sides of the main switch frame for The flexible multiplexer according to item 4. 9. Expansion switch for calls/data (16b) or signaling (17b) The frame connects to the second subscriber side connection unit (7b, 8b; 7c; 8c) and two pairs each. connected via a symbolic frame interface (35, 36 to 37, 38) 5. The flexible multiplexer according to claim 4.