JPS5827448A - Broad band communication system - Google Patents

Abstract

PURPOSE:To perform broad band communication with a speed multiplied by unit speed, by using a plurality of lines in the unit communication speed and independently selecting each line. CONSTITUTION:Terminal devices 1 and 12 are connected to line synchronizing controllers 13 and 14 via lines 3 and 11 respectively. The controllers 13 and 14 are connected to subscriber exchangers 17 and 18 through subscriber lines 15a, 15b, 15c, 16a, 16b and 16c in the unit speed. The exchangers 17 and 18 are connected to a repeating exchanger 22 through relay lines 19a, 19b, 21a and 21b in the unit speed respectively and a repeating exchanger 23 through relay lines 19c and 21c. The controllers 13 and 14 compensate the data transfer delay time difference on subscriber lines.

Description

[Detailed description of the invention]

ζO origination @ relates to a wideband overconfidence method for a communication system that performs digital transmission, using a plurality of the system oan* to perform communication at a speed multiple times the maximum average speed IIO. In the conventional far-confucian way, there is no way to avoid this kind of broadband overconfidence.
In this case, the packet exchange steel pipe shown in 1IlIWJK-II1gIIJ is used. In other words, the communication data of terminal III! The transmission delivery Wl is sent to the storage device 4 through the unit speed m times (m is a positive integer) 0*transmission path 3 and stored therein, and the overreliance data 2 is stored in the storage device 4KTh as multiple partial data 12m.
, 2b, 2clfC, and each AK sending S number 4! sme
5b*5ct added, multiple unit Ra bundles 6m, 6b
, 6C-. These are packet switching networks 7

[The round storage device SK corresponding to the other party's terminal is sent through the terminal, and the partial data fi is sent to the storage device 8.
”, JLB, Jllc is the shipping aill [1 5m. 5b and 58, the information 1119 is successively assembled into nine received information 9 and sent to the other party's terminal via the unit distance wanOfR transmission path 11. Digital digital exchange network or specialized IIIPI11 bell rope KT
maximum communication speed (for example, 48 Kb/s, 11
4Kb/s), and various methods have been considered to increase the broadband communication lIk by the appropriate amount t necessary for hJ+. However, in a packet-switched network, it is not possible to communicate transbaret (transparent) 1 in terms of time.
In the exclusive ll@tsuna, it is necessary to significantly pawn the barrier equipment and control program! There is a possibility that there is
Since it is necessary to create a V stem in the new nine, the drawback is that it becomes extremely uneconomical if the broadband communication 0Il1 tatami is less than 1KVH. The present invention eliminates these drawbacks by using a plurality of rounding unit communication speeds of 01111, each time m being 1 each g! so that it can be selected experimentally. Routing between G lines, transmission path length constraints, line relay ATO synchronization,
It is characterized by measuring and correcting deviations in bit positions caused by such factors as predetermined patterns for transmitting and receiving, and its purpose is to reduce the number of units to an appropriate number with economical time transparency. Achieving twice the broadband overconfidence - [8! . Next, I will explain this phenomenon in detail, using as an example the case where broadband communication of 3 times the unit speed is realized in a gage digital circuit switching system. FIG. 1lII shows an example of this system, in which parts corresponding to those in FIG. 1 are given the same reference numerals. -Terminal 1゜1! F
Line synchronization control 11tl through each line 3.11
It was continued on 3rd and 14th. Line synchronization control device 131.
14a single eal[), m entry line x Sm, 15b. 15 (S*16as16b, 1+l!I! sent to subscriber exchange 17.18 through 18ct.Local exchange 17
゜18ft Sotlt'tL unit 1111OdPIII
WIJ@1@m, 1 fib. 211.21b through transit exchange 22 and Otanaka aF
IM@19c, 21c (through relay exchange 8123
It is continued. When the terminal l requests communication with the terminal 12, the synchronization control device 18 connects the three access lines 15a, 15b*As@f
Via or terminal and exchange 1111V! The facility sends the calling notes to the subscriber exchange 17 via the common communication line for transferring the notes. The subscriber exchange 17 detects the signal and starts switching operation. Subscriber exchange 177e! 11115
m, 15b, 15cK vs. tAjl compensation requests can be processed individually, for example, if the general ink interface between the terminal and the network in the congregational data network is xxzl (ccx'r'r recommendation
21) K-based ite AI! A path is set up, and as a result, a subscriber line 151-
Subscriber exchange 17 - middle m11 19 sets - relay exchange 22
-Relay circuit-21a-Subscriber exchange l$-Subscriber circuit @ l
6 M call path is set, similarly 15b-17
-19b-22-21b-18-16b, 15cm17
-111cm28-2IC-18-16c are set. At this time, each of these three communication paths guarantees the time transparency of individual yMK transfer data, but these common paths
1A, the forward and backward relationship of the transfer times of the p partial data 2m, 2b, and 2c is disrupted due to the difference in relay route, so that each partial data 2-02b*2c is shown as a position on the path in the second cabinet. As a means to resolve this cruel TPS, Jin's sacrifice example is 1@
Synchronous control device t1.14KJj12FD person 1r [all
lgm, 16b. The data transfer delay time difference on 16C is corrected, and communication is performed after nine seconds. Next, with reference to FIGS. 3 and 6 and 1, the three communication paths are set up and the control jitter between the line synchronization controllers 13 and 14 for correcting the data transfer delay time difference after successful completion is established. The circuit operation in .14 will be explained mK*. The cumulative S diagram shows the control V-tance meeting between the garden line synchronization control devices 13 and 14, and the line synchronization control *t13.14 is the connect-through from the subscriber exchange 17.18 at time 〒1.
After detecting that the above-mentioned three call paths can be set, control operation t8 is started. #I4 diagram relates to the configuration of the transmission section of the line synchronization control device 13, and the serial-to-parallel conversion circuit 26 transmits communication data from the terminal l.
The subscriber line is divided into 15m, 16b, l for t bits.
! Send to IC. The communication data from the terminal l and the line synchronization control signal from the control mlI signal generator 28 are selected by the select circuit j117, and the circuits @18 m, 15 b,
I Is CK11111fZhaFigure SFiIi2
The receiving section of the one-line synchronous control device 14 is shown as an example, and the expected maximum time difference (mbit) is 1,514, 31, and 1,514, which can be counted. When l5Ic changes from (1, *) to (0, umbrella) on the signal input line, it sends the count to M and sends it to the network.
The supplied bit synchronization error signal 32 is used to count the bits.) The Llllln detection signal 3a changes from (1,
0, book) and stops operating at the friend point. * can be either 0 or 1, previous subscriber ml@lsm, 16b
, 16CO are latched to each input signal Fi latch register 80 by the input signal 32), and the output thereof is m bib.
O shift registers 84m, 84b, J4CK vs ff, and right M Kvs-coded. counter road sxa, ax
b, 51cO According to each count value m:1 select-Route 15
1° 35b and 38c are controlled, and the shift register x
714m, 34b, 84c, oiao stage 0 to irises m-1
Step (K!1-1) OF'1lltjl choice L, tts
Ka5i861e3S6b-86 (P is sent to i. Output - 36m, 3slb, 86co day / is 1 row - series change!
To 111131837! ) 3f1M)ll&-t”
J This is concatenated and sent to the terminal 12. In Fig. 3 h, the round-trip synchronization system a [13 is shown in Fig. 4 and subscriber WM#151゜15 from Kowloon Kutoan Road 271C]
b, l 5 a tllllllH14j! H$2
After sending WfiL and low call dial notes to 8 (IOFF)
Turn the signal Ill Is l, I m b, 15
After leaving the response signal, the asqa system aI scissors fIt14 also sends a signal 1? (1OFF) to the subscriber lines 111, 16b and 16c in the same way, Jl,,, 1li IT1 to the subscriber exchange 17, I 8ij path A connect through signal (1ON) indicating that the 5i! Operation tMllb.Line synchronization control device]
4 detects the connect through signal (ION), the fifth
Shown in ail 7t*<)n/a path 31 II, 3
Jb. 81CtOK initial establishment. On the other hand, in the translation Oka period stabilization device 13, the control signal generator 28) joins -1!11m1151.15b and 15e at the same time.
(OON) Note jJilR is issued. This 0 control signal 88 is sent to the exchange 17-1! Fi again! as+ via Jl-18
The data is transferred to the q-period slN device. However, due to the difference in the relay route, as shown in #Is
Notes on 1flC # ill $ 16 Compared to Hot Top OSS, for example, each '! e” forwarded with a delay of 11111
116m, 16b, 1mck with Fi1%kT8. ! ,,
T41cc 1ON)Th&(0ON)K[1sfJs
@ m @ Oka period control @ So 14 joined 111111am. The data on 15b and 16c are sent from the exchange 1B to the input register 80 (by the I-I-I-GUTATA-TATA-TUTATA-1I-4-J-82), and the Tarotsuta signal-1! j) V7 to Vt) At the same time as the data is transferred to the *0 stage O of the shift register 1B4m via the register 110, the counter j13]a is operated. Karan L Singing Step 3] In Maro! The select piece 3S selects the data tube of the tuft register $3480 first stage according to the value α) of the counter circuit Jill by passing 1 bit to the output line 86, and sends it to the output line 86. Thereafter, at time 11IT, the I rotor signal -jljK is received, so that the shift register 34 and the counter circuit 311 are incremented by one. Therefore, output @86aK is always KT, and 401-bit data converted to level fl at time is output. At time T-, the data on the subscriber line 16b changes from α) to ), and the counter circuit 31b starts operating rapidly.
I! Similarly, the output line 36bK always outputs data 401 bits before the subscriber line 16b, )-C) level change at time 11CT, II. At jlT4, the data on the 110th subscriber line 16C is (
Changes from υ to (O and #!0R1 of shift register 34C
Loaded to 1φO. Joined at the same time - 16a. Since the data on 16bt16' becomes 0, the synchronization detection asss changes from 1 to 0 and the counter 1ij131
1.31b, ale stops working. On the other hand, the shift registers 84, 34b, and 34C are rounded by the clock 9141) 82, and the data held inside is shifted by 1 bit to the right, and the output is 5ssa.
, s6b, the first level quality change data on ssc is sent. After T4 time, counter road 31m, ll
b, lle#i operation stop state and 1kj% f/7 to Vji x
pwi road 841.34b. 14c continues operation (according to clock 4II consideration 82). Stop and force? yjlllj1311 , 31
b. 81@(D counting state te*vl) 11 road 3 s a,
s 8 b. Rounding output controlled by 38C - 361, 36b. On 86o, Liaoxin Confucian people 11111g1.15b. The data sent to lsC is transferred at the same time without any temporal relationship. ! The time difference that occurs in each call path is corrected. The above correction is made and the line synchronization control end amount of the previous and subsequent transmission II is 13
So, join *41 to death select circuit 271'JIBm
15 a, I Il b, 1 s to cll t
F7jllllF. The serial data from terminal l at unit speed x 3 times is converted into a parallel signal KlK of p unit series tab by the serial/parallel conversion circuit 26, and sent to subscribers -1s Hatake, 15b, and 15C. In the receiving OWM@synchronous control device 14, after performing the delay correction described above, the parallel data of $bit□ is again converted into serial data of unit speed x3 in the parallel-to-serial conversion circuit 37. However, there are 15 layers of sending and receiving subscriber lines. 115b, 150, 161. The correspondence relationship between I6b and IC and the O bit transmission order for serial-parallel and parallel-serial conversion are determined in advance between terminals 1 and 12 or times @ synchronous pin 11111f1
It is necessary to know before communicating between 3.14 and 14. This is the thing #l
K11I may be determined fixedly, and the information is combined with the dialing signal and ringing signal at the time of a call.
The i-transmission can also be carried out by the above-mentioned Tehara and Oka, and with this vII, broadband communication can be achieved at three times the unit speed of 1.12 meters per terminal. This invention is based on the above l!瓽faK@added-not 0
For example, in the above example, the target is a digital line switching network, but the target may be a dedicated line network. A subscriber may use a single physical subscriber line by time-division or multiplexing multiple unit-speed vertical transmission lines on multiple physically independent substitute cables on a time-division or skim band. . Kusei am
The number is the level signal (1-0), K(0-1')t
) It is also possible to use signals such as level changes or specific jumps. Even if there is a failure at the time when the control signal is sent, the transmission path switching may be performed at any time during the data transmission, for example, at any time during the data transmission, such as during operation or periodically due to a failure. 1! The functions of the Kll@ synchronous control device IJ1.14 can be transferred to the terminal device l., 12 or switch 17.11KF"llE. As explained above, according to ζO@, the functions of the existing communication network equipment tfI can be used Rather than the actual IF4, simply by providing a nine-wire synchronous control device, you can achieve wideband communication of an integer multiple of the unit communication mode.
It becomes possible to perform t. In addition, the wire-switched network has the advantage that it is possible to perform GO communication at any integral multiple of the unit rate for each call (at a rate not exceeding the number of subscribers).

[Brief explanation of the drawing]

#I1 is a block diagram showing the current method of broadband communication in a conventional packet switching network, *21J is a diagram of a relay system of an actual example in this invention, and FIG. Figure 4 is a diagram showing the 4$1 configuration of the line synchronization control scissors fO transmitter, and Figure 5 is a diagram showing the configuration of the reception unit of the line synchronization control equipment. . x, lz: terminal, l 3 , 14: IIIl'1
Period control *f% 1!1, 15b, 15C, 16a, 1
6b. le c: subscriber WjMm (unit 1 (f), 1
'7,' l I: Subscriber exchange, x9a+ei9
b, 19c. 211.11b, 21c: Relay side @ (unit speed), 12
．． 28: Trunk exchange, s, s 1: m terminal line (unit speed x3), 24: Connect through signal,! I6: Serial/parallel conversion circuit, 27: Select circuit, 28: Control at@ signal generator, 30: Input register, 311.31b, 3IC:
Counting circuit, 32: Sending tie-setting clock signal, 3
3: Synchronous detection signal, 34 heat @ 34b, 34C: Shift register, 35 Otori, 35b, 35C: Select circuit, 36
Otori, 36-b, 36. c: Output line, 38; Same control signal. Takashi Kusano, Doorman, Nippon Telegraph and Telephone Public Corporation

Claims (1)

[Claims] α, depending on the digital Ik communication system, an integer multiple of the maximum communication speed R (unit: moderate) specified for that system.
A terminal with uniformity, a subscriber of the unit speed, and a subscriber am, and a predetermined Kubi umbrella pattern every time the terminal requests overconfidence. Transmit the signal pattern through the subscriber line, and receive the signal pattern to fix the deviation of the bit position occurring between the plural subscriber lines, and make a request according to the deviation of the pit position. By inserting a circuit that corrects each bit deviation by inserting a circuit and the terminal Oaa information into gms of unit speed.
It consists of 21 circuits that divide into WIla@o or integrate and transfer multiple unit series WIla@o with synchronous control scissors, and relay the unit speed based on the terminal's excess ***< @tag
em several times each German sentence Ka selection unit speed 1) @ several times overconfidence t mat mold and wide arm area difference method.