JPS59171239A - Exchange system of integrating line and packet - Google Patents

Abstract

PURPOSE:To attain various communication services by a single exchange by forming a mixed packet integrating plural lines and packet exchange signals at each destination communicating node and transmitting it to a loop to integrate line exchange/packet exchange. CONSTITUTION:The communication node 20 fetches the mixed packet addressed to the own node from a communication loop 21 by providing a transmission/ reception section 30 to each of the loop 21 and transmits a packet addressed to other nodes onto the loop 21. An assembling/disassembling circuit 31 of the mixed packet assembles a talking signal of a line exchange mode and of a packet exchange mode incoming from a transmission line 10 into the mixed packet by the destination communication node and transmits the assembled result to one of a mixed packet transmission and reception section 30. Further, the circuit 31 receives the packet addressed to the own node transferred from the transmission and reception section 30 and fetched from the loop 21 at the same time, is disassembled into a talking signal of the original line exchange mode and a talking signal of the packet exchange mode and they are transmitted into an addressed transmission line 10.

Description

[Detailed description of the invention]

The present invention relates to a new 5-way switching system that combines both 9J line exchange signals and Pakenotog exchange signals at once. As often happens when an arrow is drawn, the intersection 41 method 'If' is,
There are two types of exchange methods: the round exchange method and the NoJkenoto wrestling method. Both have their own shortcomings, and they each have their own shortcomings. It is said that Ame-su-2 is 1-. That is, [Q, total, ta,
41;: The power type transmits the required bandwidth or speed from the start of the call (or call) to the end of the call, and has a small delay. , and has the characteristic that there is no delay variation, which is advantageous for data migration where a large amount of data to be sent by voice 1Φ transmission, facsimile IJ, or file transfer tube occurs frequently. However, TSS (Time Sharing S)
For interactive data communication where data is generated only intermittently and in small amounts, such as services and makeshift services, curves are used.'' □11 It is inefficient and disadvantageous.・Exchange 1: The exchange method saves the data to be sent in the buffer □
Since the accumulation of 1--i is more than 1 degree Celsius, it is possible to efficiently increase the amount of 1 degree Celsius on the line.
This has an advantage over the above-mentioned interactive data communication. However, compared to the string exchange method, the delay is large and the delay fluctuates, so it is generally considered to be disadvantageous for voice communications. In this way, the suitable exchange method differs depending on the type of service, but currently it is preferable to configure a separate i-network for each service and adopt the exchange method suitable for that service. Common. For example, the sound μJ communication network (circuit-switched signal'), the J-telex network (circuit-switched system),
A circuit switching network for data and a packet switching network for data are constructed separately. This method has the advantage of being able to optimize each communication network for the services it provides.However, on the other hand, although the methods and characteristics are slightly different, the general idea is very similar. If there are only a few communication networks, then there are many iCs. The so-called large swarm effect is not suppressed, and the efficiency of the overall E'□1'- support system is reduced.In addition, the communication efficiency for each service is Different networks create complex networks that combine multiple services.There are many difficulties in providing financial services7, and in order to realize new services, it is necessary to create a new communication network. Therefore, by using a single communication network, both the circuit switching method and the bucket switching method δ can be realized in an integrated manner, and a wide variety of services can be realized. ＋c、'*""If we can centrally provide the same type of some, the effectiveness of some will be enhanced and it will be thicker.)
1 blue. Kameea 1 Yoshidori-, Kasamura's 8-keka route and 9 exchanges ('□1 for each of the good's)' -” ”q Sono So / Realization of Bagut integrated transmission line and line/packet integrated switch is required. Conventionally, as a line/packet integrated switch, a configuration as shown in Fig. 1 has been considered. The packet switching unit 11 separates the circuit switching unit, and the circuit switching signal passes through the link 12 to the circuit switching unit 13, and the packet switching signal 18 passes through the link 14 to the circuit switching unit 13.
``4'' to p615 (ff T5 is performed. Line switching section 13, packet data insertion 115, respectively, 1←j spelling father exchange 1:k, bucket exchange 1.J, i and It is from the same 6q.Each exchange is exchanged at IS.: M・D14z jk signal, Pagsotomata・r voice is from each Dari, Nk 128d□ and J4→W]
The 9th minute signal is also transmitted to the exchange 11. b portion is exchange part 1
1 outputs both signals to the transmission line 10 of the destination h. S11 is placed on the transmission line 10, and the configuration of 41' differs depending on whether the circuit switched signal and the 8 signals are integrated in the form shown below. However, in any case, the circuit-switched signal and packet-switched E signal on the transmission path are separated, and the two are combined and output on the transmission path. Dictionary exchange, exchange of Nomi and Bagut's father'
Even if it is true that there is a difference between the above and the exchange, the two are logically separate: it is difficult to say that it is the integration of Shin.
It is something. In other words, the circuit switching section and the packet switching section must be configured individually based on the characteristics of the circuit switching signal and the packet switching signal, and there are still some complicated parts, and a decrease in efficiency is inevitable. Line switching mentioned in /
/ There is little benefit from integrating the couquet exchange. On the other hand, private closed tDJt Mushi Shinnet, especially Aru p-Cal Eliaken Nenotowa, which has been attracting attention recently, 7. (:It,
An attempt is being made to service fglif-i1 and packet switching signals on the same communication network1. , No. 1-Work may be constructed. For example, as shown in FIG. 2, a system that accommodates a large number of terminals or lines between +' and l-stations! 2
Sentence module (hereinafter referred to as "communication notebook") 2
A conceivable configuration is that 0 is connected by two or more communication loops. In this case, if we follow the conventional configuration method for a p-force area network, for example,
In each of the frames 21, a first frame (-:>, 1 hour) is provided as shown in FIG.
hl, i'+iR10) time slot will be provided. These time slots are divided into timeslots (time slots for bucket exchange, time slots for bucket exchange, and time slots for bucket exchange), and each communication node has a time slot assigned for time exchange. The exchange signal is transmitted on the loop using the time slot allocated for the bucket exchange, while the exchange signal is transmitted on the loop using the time slot allocated for the bucket exchange. The transmission is performed by using an appropriate full chorism (for example, 1-kun passing υ:,) among the well-known full chorisms in the time slot function. In the above method, if the time slot for same line exchange and the time slot for packet exchange are fixed (η-), the time slot for packet exchange is Even if there is a stone, it is possible to make it on top of the other person.
This can lead to waste and reduce overall efficiency. In this case, although physically one-turn exchange and bucket exchange are successively published, they are completely different logically, and there is no difference from the method shown in Figure 1, and the line described earlier Slots for exchange/bucket exchange integration are not enabled. On the other hand, if the -C division is changed to -i], then the movable boundary method is changed to y.
If g, the traffic of circuit switching and bact7 switching is '1'.
It is possible to allocate the number of time slots according to '5+4, and it is possible to reduce the decrease in dynamic distortion due to the occurrence of waste described above. However, in that case, each sentence%'
1g-Keritrahi 2, Ku 1, Gorge 11j, tights,
・Slot's '-corpse,) "BHJ with a capacity indicating 15 (4 nodes are required.y) Or, if there is a control mate from the beginning, the upper topic & capacity is added to that /- node. It is necessary to add the power ゛t~ Even at this time, it is impossible to view the traffic volume.
Therefore, tights, changing the inferiority of the number of slots with g ribs, 11 knots on one side, and taking 1 width as te is unpaid hc. This is a tie l This is an electrical problem caused by the fact that the lot is different from the line:)c replacement part 1 and the replacement part. In response to this, some methods have been devised to reflect the true selfish objectives of both parties. One of them is the ceremony?・
As in 11 (if the exchange method is appropriate), -V;～N, 1 also uses the packet exchange function 7 type 1), → This is a method that attempts to integrate all 0'' communications using a bucket exchange method. In this method, in the case of Moashi, the seven-voice Buddha name that has been transformed into a pusitalized Buddha name in one ball,! -) i4 and bucket, , [,:, jp4, i20t, conventional package 71-father ze ↓ method vC, 94j S”+
-Send a message at the 1st pit. Each pie node contains a +1ilf61 signal such as the destination γt1/s, i9-filled channel number, etc.; ,1

[Garapai 7 noton')" 1-6 at y4 Senso: Pesaha, lo. Kos', 7" 7 go, - Nobu? Koyoi] 1. Transfer ... 1 no (J, f of ・-: prevent the bottom, one bucket) (, [sani 1-ro 1-L
If you don't make it bigger, you won't be able to do it.For this reason, I will confront Shinkan Oto, what is called a bucket group.''
The delay due to (1; r) when accumulating H of HL of HL of a given size is lv7.
It will be a blue fire. In the f packet 2-mata system, /(key l・□5, jj': L, one stone is transmitted while keeping the transmission path free, [tI-1-'s M1 or call , in the bucket that makes the voice, even the bucket; (thus '#- is shouted tst) is ft. Therefore, the sound is -5, Haku etc., igi j%l, Toru] D
For communication C that requires a constant delay (the delay is always constant), a reception channel for absorbing the delay variation j.
, I need a sofa, fl-li, and so on. 1 Tamesara (ζ has a great deal of music. In the wide area, from Lun 4 to A-141, there are 11") stage 9 exchanges. Kai wo・1.＼Y、Dezuro gift (((is, such i￥￥￥￥￥￥￥￥￥￥￥ in each exchange is accumulated, and as a whole＼＼＼＼＼＼＼ﾔﾔﾔﾄﾄﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆﾆｲﾆ,＼＼＼＼＼＼＼＼＼＼＼＼＾＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼＼. (One heroic story, one inferior one, due to the delay of Go himself!
, : 1゛ro. In order to reduce the stress, there are 8 ways to shorten the packet length, order bucket assembly 5 1-1, and reduce the capacity 1' of the delay absorption buffer. In that case, the Buddha will be effective! Quality problems may occur due to the decline in quality and bucket loads. - 10,000, on the contrary, when the packet exchange occurs, the ``:1 fat exchange is applied to the message, and the sword/' bucket exchange signal is converted to the 1-!1-exchange method. There is also a method of integrating. (
+ll p% fast rotation)
cui tswitcbing)
By setting a new line limit each time f+Ij transmission data occurs intermittently during transmission, and immediately restoring the line as soon as the transmission is completed, unnecessary hold-ups of the transmission line can be prevented and efficiency can be improved. This is the Yaru method. In this system, the most important issue is how quickly the line can be set up and restored. However, in the communication network that spreads over a wide area as mentioned earlier, the route from the sender to the recipient must be set up and restored via multiple exchanges, and at that time, li'1 is used as the transmission data itself. This is sufficiently small compared to the time it takes to occupy the transmission line (in reality, it takes about 1.00 liters of time to do so. Therefore, a decrease in the efficiency of the transmission line is unavoidable. When dealing with so-called multiple traffic, where there are many different types of required data bandwidths (or speeds), it is necessary to determine the required communication bandwidth or speed communication path for each communication service. It is necessary to secure control for each call and over all routes, and to combine multiple secured unit bands or unit speed call tax routes into one call. This will lead to the need to externalize the system, the hardware and software of the exchange, and the complexity of the system. □ The shortcomings of the conventional system □ mentioned above can be enumerated as follows. (1) True integration of circuit switching and packet switching is not carried out, and the benefits of integration such as improved installation efficiency, advancement, and unified management are hardly achieved (circuit switching, single packet switching). In the case of coexistence method) (2) There is a large delay for single circuit switched signals such as voice signals. (In the case of snoring due to bucket switching method, combined method) (3) There is no time transparency for circuit switched signals such as voice signals. 6 (Bucket exchange method I
(4) Efficiency is important for communication where transmission data is generated intermittently (In the case of integrated power type using circuit switching method) (5) 1j1' control for multi-source traffic becomes complicated do. (In the case of a circuit-switched integrated system) □The purpose of the present invention is to eliminate all of these missing parts, truly integrate circuit switching and packet switching, and achieve low delay for circuit-switched signals and time transparency. The aim is to realize a line/packet convergence switching system that can easily cope with multi-channel communications, without reducing the efficiency of intermittent communications, and which can easily cope with multiple communications. That is, according to the present invention, in a circuit network consisting of a transmission loop with a certain number of °C and a plurality of communication nodes that access this communication loop in common, A frame with a fixed period of time is set in the h-pi tracer loop, and each of the 71 communication nodes is sent to the same communication node for each period of the frame (sent to the K loop, and at 1a1 No to each message 1: IJ3 sees the mixed/yo get addressed to its own node among the six mixed gets transmitted on the 3N loop, and accepts it.
The present invention will be described below with reference to Figure 10. The present invention will be described in detail with reference to □The present invention is a telephone switch that connects a plurality of communication nodes 20 shown in M'21-1 with a plurality of communication loops 2-1 (including the case of 2-1). This is realized by the above circuit network configuration. The communication node 20 in FIG. 2 has a number of subscriber terminals 22, 23, . zzs or interoffice trunk line 25, and further transmit and receive the call signals arriving from them between arbitrary communication nodes], and then transmit those call signals again to any joining network, terminal, or interoffice trunk line. Send 1
11, all in all, a large number of calls in the plum format (, 8 = Rui or bet,) such as 1,3 voices, tenita, image or novelty exchange mode, Bakeno ten exchange mode, etc.
And it is a secret from the same 11σ. But Ir! The J-line da exchange mode and the nokget exchange mode represent different types of exchange that are applied to the exchange of certain telephone calls. Each communication nonid 20 transmits call signals arriving at the node in these many calls to a constant frequency common to the nodes)υ]
,...For example, 1 is the L quasi-encoding period of the audio signal.
Classify each 25 μztc by 1 destination communication node, and send the number 1 of a plurality of calls to one address, and the 4th [:+: for each city (:ni)-do]. Showing 1-
4). In Figure 1, the mixed bucket is No.]. Destination: j+) 'I'ij node address part ■], l!
S can original contact node/γlance part S, ft! It consists of the control Buddhist name part C1 times quotient 1 Wenko 1d part CS, Hakukut exchange I^" sealing part PS.
CS in Fig. 4], CS 2. C$ 3゜CS 4
．． --- General (C multiple circuit switching)
Which 'Ij call's signal is made, and each call takes up a space in the mountain baguette C according to its band (a certain degree, is a speed I■) @'I-j period 1''''4 Ru. Koreha, l'l
&l In a call in 94Q mode, -'i-p mouth (fixed amount according to the band AJj for each lj): B+,; Old I3-Sae pui, ki, tll to 'l'? i
l:i L, and the trace ii1'l is there, is Yu scolding Nosofa φme? Next lap 1υ- without ijI kidney
1, all of the 8 outputs sent to the destination linkage node are)), so the lengths of the 1 example are f, l, and j in Figure 11.
1t11 to 1251”tc (= 178K) ■z
), C8I or 64kb/'s PCM is 8 bits, C82 is 192kb
/s In the case of a high-speed facsimile, 24 bits of space will be occupied in each frame in the transfer bucket. Is it another time? [÷ 3L' of the exchange shade Qj when rice 3 occurred, then the space of the corresponding Ka1 episode signal is added to the last h'' of the exchange exchange part C8, and the first, and the conquest connection. When the conversation ends 1~ (well, the corresponding space or the old j line sentence Jj + IH begging part C8 is deleted, and the call number A of 1 S? - is moved up and becomes 2. i1i 'iBut'l(Planning part C(・Well, turn like this,
Exchange mode: JD story setting, restoration, R1 moxibustion belt shrimp, child I doubling human stand/'estrous subscriber notification update

[1st grade, common - Node Pak 1 Rikima os3 Nbutsu related to i'i1 Kan 1 Haku - This is the part where the bow is cut into a claw. Same action) exchange No. 6 old days (・ and Bakunodo exchange (, Kasu with I Tanibe, le 1f σ cut) J knowledge is also included in this Hatake 2 minute. In the W7 era, recovery, etc., the fiIIIi number 45 is either in love with the Hesota Masaru of Bakunodo, or some of the shunboku are 1 year and the Buddha number. It is also possible to manifest in Sho 1 1, Bagnod sentence & (No. 8 part 1-'
It consists of a 10-d communication bow. In terms of bucket exchange mode, m) "basket, constant J"
Even if l+'i Lh, which reached the blade and 1st node within one period, is necessarily issued no X times within the next period, tL<,
1'' in the buffer memory 1) bow 4) is allowed. Therefore, when the incoming call signal is opened, and according to the 1-71 interest rate of the loop, the bucket l-father exchange CI The length of part 1'S will vary.Generally, there are 11 episodes in bucket exchange mode with a number of frames, but these have a large number of page notes and are replaced by bar/r node exchange. 4A Part 1)
S, i.e. packet exchange 4+? 4-'l
=- No matter which phone call, the Bakunodo Exchange Department PS is communicating! It can be considered as a bucket multiplex transmission path with changing d. Note that the privately produced digestive node [111 intersects 191 F,'! If there is a 9i j to E-do call and there is a 2-mode call or a 9i j to E-do call, then of course, that I1 call is 7-do l'! ji+' of i. In the coupling bucket, the signal part C8 or the bucket father 1 bow 2bi, '', - Sodu pS's sawtooth collar, the coupling packet will be completed (t・1. Sword Advance Part I], :) b M Motonobu I 1. Node -
-7 dress 1′! IIS is literally the mixed bagen)
・Destination, above-mentioned node, outgoing light jJIJ'bo' /
- address, that is, the address number of the communication node that created the corresponding bucket. Each trace, one mate, sends a mixed bucket of such format to the trace 4a loop-h every cycle, while a large number of small money buckets transmitted on the long chain loop. Of these, by removing the one addressed to the own node from the communication loop and entering it into the first node, the opposite is true! Blind communication between nodes. According to this method, a fixed amount of call signals depending on the band or speed can be transmitted to the call center in circuit switching mode.
Since it is sent and received periodically, the delay between no-Fs is constant,
Transparency to the ``Rullt + 11j'' is guaranteed for the ``Return to the Buddha'' title. Also, the number of stoppers is 1li-i! Add one header (address, fti: control number 411, etc.) for each item in sumo wrestler and bucket exchange mode.
Therefore, the ratio of headers per individual communication is small.As a result, it is efficient enough even if the number of messages of 11b in the W5 bucket is small. So, I wanted to add the juice 5 mentioned earlier to the package.
This makes it possible to know the loading and unloading circumference, and it is possible to reduce delays caused by so-called bucket assembly axes. For example, in Fig. 4, if the mixed bucket assembly/output circuit is the 12" 5-voice #'s e mentioned earlier, the line switching signal section C8 is 80 bits for 10 voice calls, and the circuit switching section C8 is 80 bits for 10 voice calls. When the PS is 80 rad, in the normal method of configuring one packet with only one voice call, the header for the voice signal (in order to reduce the efficiency to the same degree), 160 bits of voice, or 2 The packet assembly time of .5n1c is required.How can the mixed packet method of the present invention significantly reduce the delay time compared to the normal Nipaget switching method?This is because the circuit switching signal □ On the other hand, as shown in Figure 4, this property is effective for packet-switched signals as well as for packet-switched signals. □ On the other hand, as shown in Fig. It is sufficient to mix/occupy a certain amount of space all at once in the kerat, and complex control such as securing individual bands or speeds and grouping them together is disrespectful.Furthermore, with this method, For example, a circuit switching signal and a packet switching signal are combined in the form of a mixed packet, and the handling of both signals affects performance.Next, the mixed packets are sent and received in short cycles between each communication node. First, in the configuration shown in Figure 2, in which a number of communication nodes are connected by a single or multiple communication loops, each communication loop has For example, one of the communication nodes may be provided with such a delay allocation function, or a dedicated module for delay adjustment may be configured. Then, on each communication loop, there is a period equal to the transmission time of the loop, which is 125 in the previous example.
7 transmission frames with a period of Pp'e c are F! Let's go. Furthermore, the 'frame is divided into a plurality of time slots as shown in FIG. Note that in FIG. 5, the frame synchronization pattern bits are omitted. Each communication node receives the mixed packet,
The frame is divided into the size of the time slot and monitored from the beginning of the frame, and each time an empty time slot is detected, a mixed packet divided into IN order is sent out onto the communication loop. In addition, in the above vacant time slot, it is assumed that mixed packets destined for self) and - have been taken into the node.
The resulting empty time slots are also matched and restored. Therefore, one mixed packet is transmitted within one frame using a plurality of discrete time slots. 'Furthermore, if there are many signals to be transmitted within one frame, it is also possible to use all the free time slots to transmit the mixed packet.
□ In order to distinguish between the free/indicator of each time slot and the mixed packets, each time slot has several indicators (KS= For example, as shown in FIG. 5, at the beginning of each time slot, there is provided an illegal display section I/'B, a mixed head display section H, and a 7-ratio packet identification section PI'D. The blockage display section I/B indicates whether the time slot is free or in use, and each communication mate first checks this part of each time slot when sending a mixed packet. mW to find the free time loft, then change this part of that timeslot to "in use", and then send mixed packets divided into timeslot sizes onto the timeslot. do. In addition, among the time slots for transmitting a mixed packet to the own node, the own mate uses it to send the mixed packet.1. (. An empty indication is written in the I/B of the new time slot. The mixed packet head display section H indicates that when the relevant time slot sends out a mixed packet, the time slot corresponds to the beginning of the mixed packet. For example, ``1'' is written when the time slot is displayed as ``in use'', and ``0'' is written otherwise. , if a header is indicated here, a certain destination communication node address field D (see Figure 4) is placed at the head of the information in that time slot.
to monitor. If the packet is addressed to its own node, it continues to receive the source communication "node address section S1 control signal section C, circuit switching signal section C8, etc." In this way, the mixed packet addressed to its own node is received. The first time slot t is t17, gi-4-sei), which makes the total number 61.Furthermore, Nhiai Pakeno+-1-r...Kabe PID has each trace/- For example, the PID (F is
The slot numbers of the first time slots of the mixed packets are crowded (14 examples are shown in Figure 6). $ 4.# 5.'#7
．． -- It is divided into t4n-1 and sent out on a certain communication loop. The leading time slot number "3'41'2" is written in the PID of those time slots, and in the time slot 41X2, the above-mentioned packet header I, to:\+IK header is displayed. It goes without saying that the empty display section I/B of these time slots will display "In use - 1."On the other hand, on the receiving side, the previously mentioned bucket destination vA display section and destination By monitoring 1 of the R node address, the own node?・5 hair B 4) %, then for the subsequent time slots, the time slots whose numbers are written in the PID ( )) ' By issuing KV7, mixed packets that are divided into kite flying time slots and transmitted will also be reduced to nine timeslots. In this case, if the PII of the first time slot of the mixed packet is Ij1, then the layer Ij1 is I]. ff January R
F Te O Haba Ko J1≠゛(Zudon Kon 141 Bagano)
At the beginning of -, 5 to 2 loto is 9j 7T knee j or a colander. Therefore, it is also possible to use the 32-head bucket display section II described above as a 5J bow. 1. Extends into the node, exchanges (:, 1 all f1~, '1, exclusively a ship - ge:, node exists, this special) - de and other Ichisan□〕:) For communication with Haku node 1, 7↑'s times ``7 notes are Naoden side ((Assigned to Rasai 1, -J's jI Hiroipan node 2 White Kafusa, 1
,'s wealth;・('F+ doesn't have a seasonal effect〃I'm esureno)・
There is] Marugo Sen) 4) Yes, there is no large hole, Im slot number ji? I) In the hole! 5:11 of Sat.
As a method, those time series narrow Y'+' PI
D % + 4 to 12 ・<The meaning of nato゛ is also t] 1 neck Ω. Sub, CJ-, like this (By C, each of the IJT functions can be performed without any special provision for the NA display section I/B), generally speaking, the overhead within the frame. You can also mix it up a little. The method for classifying 6 mixed packets is to chain the time slots in the same mixed packet, and set the PID of each of the 5 time slots to the following time slot selection. The method of writing numbers can also be improved. 44 examples of both are shown in Figure 7. Shield 7
The worst case is the time slot 4)-2# of the J-1 loop in which there is one mixed packet of E1 and K as in Fig. 6.
#5. #7. . . , indicates the gift transmitted using #n-1, but if the mixed packet is added to PID '
is 1i((-) The SP soto journal of the previous time slot to be input into the mixed packet is often included in W. The receiver side detects the first time slot and reads the slot length number as I.
) The next time slot is identified by Dr. B, and the chain is traced in the same way. In this method, the last time slot report'-s- (#n in Figure 7) is never written to the PID (because one mixed bucket is completed within one frame). ) Therefore, this number can be used instead of the empty display or the notification at the top of the bucket.
] If ζ has a time slot or tie 15 slot number that is not used for communication between the general communication nodes phase 4, it is also possible to use that number instead of an empty display or a packet head display. Yet another way to separate the t171 buckets is to assign a unique number to each mixed packet and each issue to 7 or 7 buckets! [Sho 1 (PIDK
It is also possible to write or write. As a unique number, send/receive 7
A method for identifyingly allocating 4-meter nominal combinations, and a method for actually transmitting and receiving 71L combination packets at a specific communication node lHj (when +'4 starts, monitoring the waist (jT loop) There is a method of selecting an unused name and making it an existing number.A typical example of the former is to leave the destination communication node address and source full IM) address as is. : It is a method of assigning a solid number to 1 shoulder number. 2. On the other hand, independently of the glossy U node and 7 dress, the number is set to 1 for the transmitting and receiving communication node.・J-allocation method is also possible, and it is possible to reduce PII by about 1 bit compared to the case of arranging them as they are without PII).
K, interface A2, or 1), the destination address is 101, the address is 11, and the address is t11] -1
On the other hand, before starting the sending of the mixed bucket, 1b Rou'
In the method of combing the hair and making it unique in the sky that does not appear on my body, I first set the relationship between the sending and receiving of the 11-Yanai-cho-Ni-white bucket to my communication node. It is necessary to take steps to prevent the duplication of uniqueness and mountain name with similar declarations from 1 prefecture and zo [1゛i and other communications]-do, but once the declaration is made, A successful play is
It becomes possible to identify a mixed bucket only by its unique number. Therefore, “[In this case also, <Fi of the mixed bucket
Among the components, addresses D and S can be omitted. these 5
In the case of this method, it is also possible to omit the "2 blockage section I'/B" by providing a unique number for the boat foot in place of the sillage display. Monitor from the beginning □
B1) The time when each unique Yuzu first appears on 1 pxp.
Since the slot is the first time slot of the corresponding combined pug cut, the bucket order display section H + does not necessarily have to be 10' eve even in the case of these j5 scissors. Regardless of the method described above, according to the present invention, each tie-in slot is indicated as empty in some form. Select the required number of buckets from the first 2@ of the energized frame (including tie A "7.'qt" which is used for the self-node only once and becomes empty at the self-node), and set each mixed bucket. Therefore, if there are many calls to be sent, all available time slots can be used to send a mixed bucket.
Since it is possible to utilize 100% of the transmission capacity of □, pay exchange, and rape without distinguishing between bucket exchange signals and bucket exchange signals, it is extremely efficient (...On the other hand, the amount of communication signals that should be sent is empty. At time 7, if there are more stations than the number of lots, the overflowing call signal will be held until the next frame, and a new transmission will be attempted at δ5 after the mixed paget of the next frame.Thus) The length of the 71-bit bucket is variable depending on the number of time slots to be sent and the number of time slots. However, according to the present invention, the number of desired time slots v is used for queuing based on the packet multiplicity signal ps(f:4
Illustration 11←)σ1. ) Miyako, with molecule Q, l! '''The incense exchange reverse signal CS &,) part must be filled with the seti frame, can its meaning be 6 or less ξ? I will clarify. The energization of each I fastener exchange mode is 7 on both sides of the building.
/Downward signal 2!1 (degrees aLt, Ni number. As mentioned earlier, 4 points), each go μm loop has a number of times when the frame is less than 10 times for transmission of - 'ad AE
It is constructed to match. Therefore, any time slot in a frame always exists somewhere on the communication loop and circulates between communication nodes at times rll Ff: 1131i. ε In other words, it can be thought of in the same way that a belt conveyor rotates the communication node 411 %"H times. Therefore, if the time slot addressed to the own node between each communication node is released, -(-, 5, It is possible to use an empty time slot and tC for sending mixed packets from one's own node.This means that n time slots are sent to one's own node within one frame. If this happens, there are generally some empty time slots at the node, so it is possible to use the L-low n time slots for the transmission of the second node. node A,
, circuit switching using one time slot in Bill.
-4 Renki, communication node A (
゛Yo, monitor the time slots on the Meisen loop and set one complete time slot to the missing circle L''1 and 3.
``Funsei's ``Tetsupa'''' 6 towns 1 will be tried.This mixed bucket threat 1.→Yumibe C has:
:1 Contains instructions to B to use Oimsuronoto for traffic signals. Node I3
1) St, receive the combined bucket (g l-1*
'J ttl The camera reading of the command before accepting the command is performed after receiving the mixed bucket from node A (R), so the time slot that the mixed bucket used 1ψ is immediately sent from node B to node A. Since it is not possible to send mixed packets to the t1 node, node B must also search for the number of free time slots.After that, nodes A and B send 4ff-71/4ff-71 to the t1 node, respectively. -Mueta Imus [Try to send out Gotsuto's Nkongo Bucket. Then, depending on the mechanism mentioned earlier, which one will be 0-0.
) mate successfully sends out, the other node can also send out, and the μ backward node sends a mixed bucket of imslots to each other at least 1. All J/if K, 1 times I'
The J throat can be occupied between nodes A and B, and the
It is possible to continuously secure the transmission of each frame necessary for the exchange signal. The number of time slots required for transmitting and receiving circuit-switched signals can be increased in the same manner as described above.
l Kaya No. 43 Part C,? This is achieved by the J'' matching between the communication nodes and the capture operation of narrow time slots of the required number of Pfl at both nodes.In this way, the If continuous transmission and reception of mixed signals in the required number of time slots is established,
Thereafter, without any special control, it is possible to maintain the transmission of the current frame of the circuit-switched signal between nodes A and B without being disturbed by access from other mates. However, from the time acquisition of free time slots is started until the transmission of bidirectional circuit switching signals is established, there will be some free space in the mixed bucket to be transmitted.
It is only necessary to send a packet exchange signal for this ) small portion3.
Generally, each communication node sends out several stop and join buckets for each destination communication node.
Is it necessary to send the PS number to the bag node m4 after sending it? Furthermore, among the elements of the mixed bucket shown in Fig. 4, addresses D, S, and white signal C must be sent every time there is a call between the energized nodes. (However, addresses D and S may be unnecessary as mentioned above), but in the above explanation, ff9
It may be considered to include it in the exchange message 'r4. On the other hand, as for the communication signal of the bucket exchange 7~do, as mentioned earlier, it is sent out on the energized loop while waiting according to the number of free time slots, so it is transmitted intermittently. The line/bucket integration method according to the present invention is sufficiently efficient even for calls where take occurs. In the above explanation (well, for the purpose of the explanation, it is assumed that each communication node sends a mixed bucket to another arbitrary node to one communication loop in each period). In fact, in the case of C'h formation where there are multiple physical communication loops, the above has been written by considering Koga 1 and others as one communication loop. Alternatively, a method similar to that described above may be applied.Alternatively, a method may be adopted in which the mixed buckets described above are each sent to one proboscis communication node.Also, in this case, the If the amount of communication is large, it is easy to create a method to secure the necessary amount of communication by creating multiple mixed buckets between the nodes and sending them to separate physical communication loops.8. 9 and 9 are schematic diagrams illustrating an example of the configuration of an i-node according to the present invention. However, this example shows a configuration in which one mixed bucket is sent to the same message loop. This is an example. In FIG. 8, the communication node 20 is provided with a mixed bucket transmitter/receiver 30 for each of the plurality of communication loops 21, and transmits the mixed bucket addressed to the own node according to any of the methods described above. The mixed bucket is taken in from the communication loop, and the mixed bucket destined for the sender node is sent out onto the trace loop.The mixed bucket assembly/disassembly circuit 31 receives the call signal in the circuit switching mode coming from the transmission path 10, and the bucket switching mode. It assembles the call signals into mixed packets for each destination communication node and sends them to one of the mixed bucket transmitting/receiving sections 30. At the same time, the communication signals transferred from each mixed bucket transmitting section 30 (8 loops 21 Receives the mixed packet addressed to the own mate taken in from the original circuit exchange network, and decomposes it into the communication signal in packet exchange mode (-1) and sends it to the destination transmission line 1°. The control unit 32' performs □4 formation/analysis of the control signal part C (see Fig. □4') of the mixed packet to be transmitted and received, and controls the communication node □ as a whole. The clock synchronizes the internal operation of the communication node with the network clock in the exchange, and also supplies it to various nodes.For clock synchronization, □This is a matter well known to those skilled in the art, and detailed details are omitted.' □Figure 9 is similar to Figure 8.
FIG. 2 is an explanatory diagram showing a more detailed configuration of the mixed valley bar sender receiver 30 shown in the figure. In FIG. 9, the visitor signal transmitted from another node on the communication loop 2□1 is received by the receiver 1 circuit '34, equalized and amplified, and converted into a digital signal. will be stopped. The frame synchronization circuit 35 detects the frame phase from the reproduced digital data string, and based on it, various timing signals for the operation in the mixing bucket receiving section 30 are determined. Create. Based on this □ timing' signal as well, the reception time slot control circuit 36 monitors the empty hole display section I/B and the target destination-display section H1 mixed packet identification section PID of each □ time line, and It detects the blue slot in which the destination mixed packet exists, and instructs to write its contents into the reception buffer memory circuit 3'7''''. In general, there are i number of matching kerats addressed to the own node, so buffer memo Takumi's 1-inclusive is □
, the classification is also done by □. Receive buffer
The mixed packet written in memory 37 is transferred to mixed packet assembly/disassembly circuit 31 in FIG. On the other hand, after the transmission mixed packet transferred from the mixing bucket assembly/disassembly circuit 31 is stored in the transmission buffer memory 38, the transmission time is controlled by the transmission time control circuit 390'. Sent on the communication loop. A sentence) A sentence slot control circuit □3isi*'f
In the same way as detecting a time slot in which a mixed packet addressed to the b node exists, detecting an empty time slot is also done:
Then, the transmission time slot control circuit 39 is notified of the combined bucket transmission capacity time slot for the sick patient. □Transmission time input pt flt control circuit 39 sends mixed packets to be sent to the transmission buffer memory circuit 38.
If there is, the mixed packet is sent to the 100th frame slot in accordance with the notification. During this time, the empty display section I/B of the corresponding evening/nim slot; (Part H5 Mixing Bucket)M Print the necessary signals using the method described above.On the other hand, even if there is a slot that can be sent, if there is no mixing bar to be sent, , sends a vacant display signal to the vacant display section I/B of the relevant time slot.When writing PID etc. or sending out mixed packets, the time slot control circuit 390 control is used. : Under the control, the switch 40 selects the terminal 41 on the insertion side. ・In addition, for one time slot being used by another mixed target, the switch 40 selects the terminal 4.2 on the passing side. The delay circuit 43 transmits the signals sent from other communication mates as they are. The new A'1 is analyzed by the transmission time slot control circuit 39.
/IB, 4B (%PI'I) is a circuit for compensating for the delay until it is written. The signal selected by the switch 40 is sent out onto the communication loop 21 again by the transmission circuit 44 and transmitted to the next communication node. □As mentioned above, according to the present invention, the rotation
□Line switching signals and packet switching signals can be handled uniformly in the form of the same mixed bag grade, making true integration possible. Therefore, there is no need to allocate the transmission capacity of the communication loop to both parties in advance;
Since the capacity can be occupied dynamically as needed, the control is simple, and there is no waste as in the conventional example, making it extremely efficient. Also, once the required amount of time slots can be secured between specific nodes,
Since mixed packets can always be sent in subsequent plow frames, times 1! For d-switched signals, there is no delay variation peculiar to conventional packet switching systems, and time transparency is guaranteed. Furthermore, since it uses a mixed packet format that integrates multiple simultaneous call signals, the overhead per communication is small, and the number of calls and mails per call in one call is reduced to a minimum. I can do 1. Seven t11 rules,
When assembling 111], it is necessary to know the distance between the buckets, i.e., the frame period, so that it can be transmitted as a whole. This makes it possible to keep the delay small. In addition, by providing a mixed packet identification section PID section in each time slot, it is possible to
It is possible to combine the nodes and send out a variable-length 7I42 bag in one piece, and it is also flexible for communications with different bandwidths (or speeds) and communications with different traffic characteristics, that is, so-called multiple traffic. Exchange 4'-'> 1
1-: can be provided. Therefore, redemption/conversion/
The present invention has extremely great effects as a method for integrating Pagenot crossings and providing divine communication services using a single exchange. Also, if we consider the configuration of diagram u12 as a local area network, '4-Kotsuj can be reduced to a local Nirin' network ['
4. It has a long-term application ability and a large moving body.

[Brief explanation of drawings]

Figure 1 is a block diagram showing the configuration of a conventional line/packet bed switch; Figure 2 is a block diagram showing the configuration of a line/packet integrated switch that is modified from the conventional low-power line/packet switch; , 3 is an explanatory diagram showing the frame structure according to the conventional method in the ζ formation of FIG. 2, FIG. Punishment to show, Mingzu, No. 6
Fig. 7, Show 1 is an explanatory diagram showing how to use the frame according to the present invention, Fig. 1, FIG. 9 is a block diagram showing an example of the configuration of a communication node in misfire i. In the figure, 10, 12, and 14 are transmission lines, 11 is a distribution switching section, 3 is a green switching section, 15 is a packet switching section, 2
0 is an energizing/-dead, 21 is an energizing loop, 30 is a mixed back node transmitter signal circuit, 31 is a mixed packet assembly/disassembly circuit, 32 is a 4D node control unit, 33 is a clock circuit, 3
4 is a power receiving circuit, 35 is a frame L/- frame synchronization circuit, and 36 is a receiving circuit (
i time run node 1llll control times %, 37 is 96')
・Nofa Memoribi $<, 3F! , The sending is also 14 times buffer memory ゛; 1., 39 is hair, tithe times "J soto system: 1 times 1', 4° 0 (go, suiyu thousand, 43 is) ξ" ηノ(Circuit, 441:I, send it to I" jump.
Susumu Uchihara, attorney general's attorney.ゝ・、− 1st item 8th figure・? No So/ No/ □−↓! J 2'(:'nee・3.3 q Fig. 1
Procedural amendment (self-argument) Showa 1999 1997 Director General of the Japan Patent Office 1 Case 0 Showa 1999 patent, application fee ““”
? No. 2゜Name of the invention Line/packet integrated switching system 3, Relationship with the amended person's case Application: Tokyo Tech; Chushi Lane District Shiba/i-) 133-1 (423) NEC Co., Ltd. Tadahiro Sekimoto 4, Agent: "J" 1137-8, Shiba 1i, Minato-ku, Tokyo 108; - Sumitomo 3 111 Hill 5 Column 6 of the detailed description of the invention in the specification subject to restriction □ Contents of the amendment □ ( 1) From line 7 to line 8 of page 20 of the specification, the phrase ``assembly period, e.g. 25μ less'' is corrected to read ``assembly period (e.g. 125.''μ5ec) or an integral multiple thereof.'' . (2) In page 29, line 18 of the specification, the phrase "match" is amended to read "equal or an integral multiple thereof." (3) In the 13th line of page 31 of the specification, the phrase "If successful, the other node is also taken" is corrected to "If successful, the other node is also taken in that frame." (4) On page 31, line 14 of the specification, it says “Deki, hereafter both □
-do: must be at least 1 niim slot”.
I get to leave. If such transmission is possible for all frames that exist during one round of the communication loop, then both nodes will correct this so that from then on, each frame will always have at least l time slots. (5) In the 16th line of page 31 of the specification, the phrase q that says "one time slot throughout the loop" should be replaced with "p over the entire loop, one time slot per frame". time slot.”
and corrector. □ (6) In the 16th line of No. 36 of the specification, the phrase "transmitted. Reception time slot" should be replaced with "transmitted. However, among the mixed packets, the signal in the packet switching signal part PS is not transmitted.・Receive buffer □ Waiting may be performed in the memory 38. Receive time slot" is corrected. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] 1. A single ℃ is calculated from multiple communication loops and the first number of communication nodes that have common access to the communication loops x 7 yen.
/Contains the same relationship//'Bakunod integrated exchange'・In the 8th circuit line, Jiff's notes are written on the 1st period of Ichiu Time Sufu -,
71/- is set up, and every cycle of nfl l: o own name i; The communication node finds the mixed bucket addressed to its own node among the merged buckets, accepts it, and records the received data. A line/bucket integrated exchange power formula in which one packet is divided into i-i line exchange colors and *, ', -J rokoto. 2i1” frame is divided into multiple timests z′l
Claim 1, characterized in that the mixed bucket is transmitted using four previous R time slots.