JPH05110582A - Non-disconnection communication method for voice call - Google Patents

Non-disconnection communication method for voice call

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Publication number
JPH05110582A
JPH05110582A JP29798291A JP29798291A JPH05110582A JP H05110582 A JPH05110582 A JP H05110582A JP 29798291 A JP29798291 A JP 29798291A JP 29798291 A JP29798291 A JP 29798291A JP H05110582 A JPH05110582 A JP H05110582A
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JP
Japan
Prior art keywords
cell
path
atm
voice
logical communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29798291A
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Japanese (ja)
Inventor
Osamu Yamato
理 大和
Original Assignee
Nec Corp
日本電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nec Corp, 日本電気株式会社 filed Critical Nec Corp
Priority to JP29798291A priority Critical patent/JPH05110582A/en
Publication of JPH05110582A publication Critical patent/JPH05110582A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To obtain a non-disconnection communication service by providing a function for detecting disconnection of one piece of existing path, and continuing immediately a communication by using another ATM logical communication path as an existing path, in a voice cell-conversion trunk circuit.
CONSTITUTION: Between voice cell-conversion trunk circuits 10, 11 in two terminal stations, at least two pieces of logical communication paths whose physical paths are different are set. Also, this system is provided with a cell- conversion/reverse cell-conversion control circuit 110 for always transmitting simultaneously a voice data cell onto plural ATM logical communication paths, and also, selecting one piece in plural ATM logical communication paths as an existing path, receiving the voice data cell and executing its reverse cell- conversion, in the voice cell-conversion trunk circuits 10, 11. Moreover, this system is provided with a path disconnection detecting circuit 140, and an existing path switching control circuit 130 for giving an instruction to the cell- conversion/reverse cell-conversion control circuit 110 so that when disconnection of the existing path is detected, a stand-by ATM logical communication path is used immediately as a new existing path. In such a way, a conversation between users is not suspended.
COPYRIGHT: (C)1993,JPO&Japio

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は音声呼の無切断通信方法に関し、特に、ATM音声通信ネットワークにおける、 The present invention relates to an non-cutting method of communication voice call, in particular, in the ATM voice communication networks,
中継線障害時の音声呼の無切断通信方法に関する。 About no cleavage communication method voice call during trunk failure.

【0002】 [0002]

【従来の技術】ATM音声通信ネットワークにおける中継線障害時の音声呼の無切断通信方式の従来例を図3を参照して説明する。 It will be described with reference to FIG. 3 a conventional example of a non-cutting communication method of a voice call during trunk disorder in the Related Art ATM voice communication network. 従来は、電話端末230,231を収容する端局200,201の音声セル化トランク回路220.221の間に一本のATM論理通信パス250 Conventionally, ATM logical communication path 250 of the one between the voice cell of the trunk circuit 220.221 end stations 200, 201 to accommodate the telephone terminals 230, 231
を設定し、このATM論理通信パスを実現しているAT Set, AT that achieves this ATM logical communication path
M中継線240,241や中継局210に障害が発生した場合には、端局200,201の音声セル化トランク回路220,221の間で改めてATM中継線242, M trunk 240, 241 and relay station when a failure occurs in 210, again ATM trunk 242 between the voice cell of the trunk circuits 220 and 221 in the terminal station 200, 201,
243と中継局211を経由した別の経路でATM論理通信パス251を設定し、電話端末230,231の間の音声呼接続を継続する方式となっていた。 243 and sets the ATM logical communication path 251 with another route via the relay station 211 has been a method to continue a voice call connection between telephone terminal 230 and 231. この方式により中継線障害等が発生しても改めて呼接続要求手順を実行することなしに、電話端末230,231間の相互通信を継続することができるようになっている。 Without trunk failure or the like by the method executes again call connection request procedure even if it occurs, thereby making it possible to continue the mutual communication between telephone terminals 230, 231.

【0003】 [0003]

【発明が解決しようとする課題】しかしながら、上述した従来の音声呼の無切断通信方式では、中継線障害等の発生時にATM論理通信パスを別の経路で改めて再設定する方式となっており、中継線障害の発生による通信中断の検出後新しいATM論理通信パスを使用した通信が再び可能になるまで少なくとも数秒要するため、利用者間の正常な会話ができなくなるという問題があった。 [SUMMARY OF THE INVENTION However, in the non-cutting communication method of a conventional voice call described above, it has a newly reconfigured to scheme ATM logical communication path in a different path in the event of such trunk failure, since the communication using the detected post new ATM logical communication path of the communication interruption due to occurrence of a trunk fault takes at least several seconds to enable again, there is a problem that can not be normally conversation between users.

【0004】本発明は上述した問題点にかんがみてなされたもので、中継線障害の発生による通信中断の検出後、10ms程度の処理時間で再び通信可能とすることができ、したがって、実質上利用者間の会話を中継することのない音声呼の無切断通信方法の提供を目的とする。 [0004] The present invention has been made in view of the problems described above, after the detection of the communication interruption due to occurrence of a trunk failure, it is possible to communicate again processing time of about 10 ms, therefore, substantially utilized and an object thereof is to provide a non-cutting method of communication voice call without relaying the conversation between Sha.

【0005】 [0005]

【課題を解決するための手段】上記目的を達成するために本発明の音声呼の無切断通信方法は、ディジタルコード化された音声データを固定長セルに設定して通信するATM音声通信ネットワークにおいて、通信しようとする二つの電話端末をそれぞれ収容する二つの端局内の音声セル化トランク回路の間に、少なくとも二本の物理的経路の異なった論理通信パスを設定し、上記音声セル化トランク回路内に、音声データセルを常に複数のATM No cleavage communication method of speech calls of the present invention in order to achieve the above object, according to an aspect of, in ATM voice communication network that communicates by setting the digital encoded audio data into fixed-length cells , during the voice cell of trunk circuits of the two end station for accommodating two telephone terminals that wish to communicate, respectively, to set the different logical communication paths of the at least two physical paths, the voice cell of the trunk circuit within, always a plurality of ATM voice data cell
論理通信パス上に同時に送信するとともに、複数のAT It transmits simultaneously on logical communication path, a plurality of AT
M論理通信パスの中の一本を現用パスとして選択して音声データセルを受信して逆セル化するセル化・逆セル化制御回路と、現用ATM論理通信パスの切断を検出するパス切断検出回路と、現用パスの切断検出時にすぐに予備のATM論理通信パスを新たな現用パスとして使用するようにセル化・逆セル化制御回路に指示する現用パス切替制御回路とを設けた構成としてある。 The cell and inverse cell forming control circuit for inversely cells it can receive audio data cell one in the M logical communication path selected as the working path, path disconnection detection for detecting the disconnection of the current ATM logical communication path there a structure in which a circuit, and a working path switching control circuit instructs the cell and inverse cell conversion control circuit to use immediately spare ATM logical communication path when the disconnection detection of the working path as a new working path .

【0006】 [0006]

【実施例】以下、本発明の一実施例について図面を参照して説明する。 EXAMPLES The following will be described with reference to the accompanying drawings, an embodiment of the present invention. 図1は、本発明の方法を実施するための端局における音声セル化トランク回路等の一例を示すブロック図、図2は、この端局を含むATM音声通信ネットワークを示す構成図である。 Figure 1 is a block diagram showing an example of such voice cell of the trunk circuit at the end station for carrying out the method of the present invention, FIG. 2 is a block diagram showing an ATM voice communication network including the terminal station.

【0007】図1において端局は、TDスイチ20と、 [0007] terminal station in FIG. 1, the TD Suichi 20,
ATMセルの交換スイッチを実行するATMスイッチ3 ATM switch 3 to perform the exchange switch of the ATM cell
0と、この二つのスイッチに直接接続されている音声セル化トランク回路10と、ATMスイッチ30に接続されているATM中継トランク40,41と、TDスイッチ20に接続されているライン回路50とから構成されている。 0, and the voice cell of the trunk circuit 10 is directly connected to the two switches, an ATM relay trunks 40 and 41 are connected to the ATM switch 30, the line circuit 50 for being connected to a TD switch 20 It is configured. ライン回路50は、加入者線を介して電話端末60を制御している。 Line circuit 50 controls the telephone terminal 60 through the subscriber line. ATM中継トランク40,41はそれぞれ、ATM中継線70,71を収容している。 Each ATM relay trunks 40 and 41 houses an ATM trunks 70 and 71.

【0008】音声セル化トランク回路10の内部は、セル化・逆セル化制御回路110とTDスイッチインターフェース回路120と、現用パス切替制御回路130 [0008] inside the voice cell of the trunk circuit 10 includes a cell and inverse cell conversion control circuit 110 and the TD switch interface circuit 120, the working path switching control circuit 130
と、パス切断検出回路140とから構成されている。 When, and a path disconnection detection circuit 140..

【0009】セル化・逆セル化制御回路110は、AT [0009] cell and inverse cell of control circuit 110, AT
Mスイッチ30と直接接続し、ATM中継線70,71 Directly connected to the M switch 30, ATM trunk lines 70 and 71
上の複数のATM論理通信パスをATM中継トランク4 ATM multiple ATM logical communication path of the upper relay trunk 4
0,41とATMスイッチ30を介して収容する。 To accommodate through the 0,41 and the ATM switch 30. セル化・逆セル化制御回路110は、送信に際しては、一つの電話端末からのディジタルコード化された音声データを、TDスイッチインターフェース回路120を介して受信し、固定長セルに設定して、複数のATM論理通信パス上に同時に送信する。 Cell and inverse cell conversion control circuit 110, upon transmission, the digital encoded audio data from one telephone terminal, received via the TD switch interface circuit 120, and set to a fixed length cells, a plurality simultaneously transmitted on the ATM logical communication path. また、セル化・逆セル化制御回路110は、受信に際しては、複数のATM論理通信パスの中の一本を現用パスとして選択して、音声データセルを受信し、これを逆セル化して、ディジタルコード化された音声データのみをTDスイッチインタフェース回路120を介して電話端末に送信する機能を有する。 The cell and inverse cell conversion control circuit 110, upon reception, by selecting one of a plurality of ATM logical communication path as the working path, and receive audio data cell, and reverse cell of this, only digital encoded audio data has a function of transmitting to the telephone terminal via a TD switch interface circuit 120.

【0010】パス切断検出回路140は、セル化・逆セル化制御回路110で逆セル化されて出力される音声データを監視し、ある一定時間(例えば1秒)以上音声データが出力されない場合には、現用のATM論理通信パスが切断されたものとして判断して、パス切断の発生を現用パス切替制御回路130に通知する。 [0010] path disconnection detecting circuit 140 monitors the audio data to be output is reverse cell of the cell and inverse cell conversion control circuit 110, when the audio data a predetermined time (e.g., 1 second) or more is not output , it is judged as ATM logical communication paths working is disconnected, and notifies the occurrence of the path cut into the working path switching control circuit 130.

【0011】現用パス切替制御回路130は、現用パスの切断通知を受信すると、別のATM論理通信パスを現用パスとして音声データセルの逆セル化の処理を行なうようにセル化・逆セル化制御回路110に対して指示する。 [0011] working path switching control circuit 130 receives the disconnection notification working paths, cell and inverse cell conversion control so as to perform the processing of inverse cell of audio data cells another ATM logical communication path as the working path It instructs the circuit 110.

【0012】上記本発明方法を実施するための端局を含むATM音声通信ネットワ−クを図2に示す。 Shows the click 2 - [0012] ATM voice communication networks including the end station for carrying out the present invention method. 図2に示すように、ATM音声通信ネットワークは、上述した本発明方法を実施するための端局100,101と、中継局210,211及びATM中継線240,241,2 As shown in FIG. 2, ATM voice communication networks, the terminal station 100 and 101 for carrying out the present invention method described above, the relay station 210, 211 and the ATM trunk 240,241,2
42,243とから構成されている。 And it is configured from the Metropolitan 42, 243. 端局200,20 Terminal station 200, 20
1は、それぞれ電話端末60,61を収容するとともに、本発明方法を実施するための音声セル化トランク回路10,11を備えている。 1, it accommodates a telephone terminal 60 and 61 respectively, and a voice cell of the trunk circuits 10 and 11 for carrying out the present invention method. 電話端末60と電話端末6 Telephone and the telephone terminal 60 terminal 6
1の間の音声通信は、端局100の音声セル化トランク回路10と端局101の音声セル化トランク回路11の間にATM中継線240または242と中継局210または211とATM中継線241または243を経由したATM論理通信パス250または251のうちいずれか一つを設定することによって実現される。 Voice communications between the 1, ATM trunk 240 or 242 and the relay station 210 or 211 and the ATM trunk 241 between the voice cell of the trunk circuit 11 of the audio cell of the trunk circuit 10 and the terminal station 101 in the terminal station 100 or 243 of the ATM logical communication path 250 or 251 via is realized by setting any one.

【0013】次に、本発明の音声呼の無切断通信方法の制御の流れについて説明する。 [0013] Next, the flow of control of the continuously cutting the communication method of speech calls of the present invention. 電話端末60と電話端末61の間の音声呼が非常に重要な通信用のものであるとき、音声セル化トランク回路10,11の間に一本のA When the voice call between the telephone terminal 60 and the telephone terminal 61 is for a very important communication, a single A during voice cell of trunk circuits 10 and 11
TM論理通信パス250だけでなく、ATM中継線24 TM not only a logical communication path 250, ATM relay line 24
2と中継局211とATM中継線243を経由したもう一本のATM論理通信パス251を設定し、前者を現用パス、後者を予備パスとして音声セル化トランク回路1 2 and set the other one of the ATM logical communication path 251 via the relay station 211 and the ATM trunk 243, the former working path, the voice cell of trunk circuits latter as backup path 1
0,11に無切断通信制御を指示する。 Instructing free cutting communication control to 0,11.

【0014】これにより、たとえばATM中継線240 [0014] Thus, for example ATM trunk line 240
が切断されて、ATM論理通信パス250による通信が不能となっても、別のATM論理通信パス251を使用した通信が音声セル化トランク回路10,11の制御によって10ms程度の処理時間で継続されるため、電話端末60,61の間の通信を実質上中断することなく、 There is cleaved, even becomes impossible to communicate using ATM logical communication path 250, communication using a different ATM logical communication path 251 is continued by the processing time of about 10ms the control of the voice cell of trunk circuits 10 and 11 because, without substantially interrupting the communication between the telephone terminal 60 and 61,
音声呼の無切断通信が実現される。 No cleavage communication of voice call is realized.

【0015】なお、電話端末60と電話端末61の間の音声呼があまり重要でない通信用のものであるときは、 [0015] Note that when a voice call between the telephone terminal 60 and the telephone terminal 61 is for a communication is not so important,
従来の音声呼の無切断通信方式と同様、一本のATM論理通信パスを設定し、障害が発生した場合には改めて別の経路ATM論理通信パスを設定するようにしてもよい。 As with non-cutting communication method of a conventional voice call, it may be set to a single ATM logical communication path, when a failure occurs to set anew another route ATM logical communication path. すなわち、本発明方法と従来の方法とを併用する形式のものであってもよい。 That is, it may be of the type used in combination with the present invention a method and a conventional method.

【0016】本発明方法は上記実施例に限定されず、適宜変形して実施できる。 [0016] The present invention method is not limited to the above embodiments can be carried out appropriately modified. 例えば、物理的経路の異なった論理通信パスを三本以上設ける構成としてもよい。 For example, different logical communication paths of the physical path may be provided three or more.

【0017】 [0017]

【発明の効果】以上説明したように本発明は、二つの端局の音声セル化トランク回路の間に少なくとも二本の物理的経路の異なったATM論理通信パスを設定し、そのうちの一本である現用パスの切断を検出し、別のATM The present invention described above, according to the present invention sets an ATM logical communication paths having different at least two physical paths between the voice cell of the trunk circuits between the two end stations, with one of them to detect the cutting of a working path, another ATM
論理通信パスを現用パスとしてすぐに通信を継続する機能を音声セル化トランク回路に備えているので、中継線障害等の発生による通信中断の検出後、10ms程度の処理時間で通信を再び可能とでき、したがって利用者に対して完全に無切断な通信サービスを提供できる。 Is provided with the ability to continue immediately communicate the logical communication path as the working path to the voice cell of trunk circuits, after detection of the communication interruption due to occurrence of trunk failure, communication can again and the processing time of about 10ms can, thus providing a completely free cutting of communication services to the user.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明方法を実施するための端局における回路を示すブロック図である。 Is a block diagram showing a circuit in the present invention; FIG method end station for carrying out.

【図2】図1の端局を含むATM音声通信ネットワークを示す構成図である。 2 is a block diagram showing an ATM voice communication network including a terminal station of Fig.

【図3】従来のATM音声通信ネットワークを示す構成図である。 3 is a block diagram showing a conventional ATM voice communication network.

【符号の説明】 DESCRIPTION OF SYMBOLS

10,11…音声セル化トランク回路 20…TDスイッチ 30…ATMスイッチ 40,41…ATM中継トランク 50…ライン回路 60,61…電話端末 70,71…ATM中継線 100,101…端局 110…セル化・逆セル化制御回路 120…TDスイッチインターフェース回路 130…現用パス切替制御回路 140…パス切断検出回路 210,211…中継局 240,241,242,243…ATM中継線 250,251…ATM論理通信パス 10,11 ... voice cell of the trunk circuit 20 ... TD switch 30 ... ATM switch 40, 41 ... ATM relay trunk 50 ... line circuit 60, 61 ... telephone terminal 70, 71 ... ATM trunks 100, 101 ... terminal station 110 ... cell and inverse cell forming control circuit 120 ... TD switch interface circuit 130 ... working path switching control circuit 140 ... path disconnection detecting circuit 210, 211 ... relay station 240,241,242,243 ... ATM trunks 250, 251 ... ATM logical communication path

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 ディジタルコード化された音声データを固定長セルに設定して通信するATM音声通信ネットワークにおいて、通信しようとする二つの電話端末をそれぞれ収容する二つの端局内の音声セル化トランク回路の間に、少なくとも二本の物理的経路の異なった論理通信パスを設定し、上記音声セル化トランク回路内に、音声データセルを常に複数のATM論理通信パス上に同時に送信するとともに、複数のATM論理通信パスの中の一本を現用パスとして選択して音声データセルを受信して逆セル化するセル化・逆セル化制御回路と、 現用ATM論理通信パスの切断を検出するパス切断検出回路と、現用パスの切断検出時にすぐに予備のATM論理通信パスを新たな現用パスとして使用するようにセル化・逆セル化制御回路に指示 1. A ATM voice communication network that communicates by setting the digital encoded audio data into fixed length cells, the voice cell of trunk circuits of the two end station for accommodating two telephone terminal wants to communicate respectively during, set the logical communication paths having different at least two physical paths to the voice cell of the trunk circuit, and transmits simultaneously always on a plurality of ATM logical communication path audio data cells, a plurality of the cell and inverse cell forming control circuit for inversely cells it can receive voice data cell by selecting one in the ATM logical communication path as the working path, path disconnection detection for detecting the disconnection of the current ATM logical communication path circuit and instructs the cell and inverse cell conversion control circuit to use the cutting detection time immediately spare ATM logical communication path of the working path as a new working path る現用パス切替制御回路とを設けたことを特徴とする音声呼の無切断通信方法。 Working path switching control circuit and a non-cutting method of communication voice call, characterized in that a that.
JP29798291A 1991-10-18 1991-10-18 Non-disconnection communication method for voice call Pending JPH05110582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29798291A JPH05110582A (en) 1991-10-18 1991-10-18 Non-disconnection communication method for voice call

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29798291A JPH05110582A (en) 1991-10-18 1991-10-18 Non-disconnection communication method for voice call

Publications (1)

Publication Number Publication Date
JPH05110582A true JPH05110582A (en) 1993-04-30

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ID=17853610

Family Applications (1)

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JP29798291A Pending JPH05110582A (en) 1991-10-18 1991-10-18 Non-disconnection communication method for voice call

Country Status (1)

Country Link
JP (1) JPH05110582A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06276231A (en) * 1993-03-02 1994-09-30 Internatl Business Mach Corp <Ibm> Message packet transmitter
JPH0730559A (en) * 1993-05-28 1995-01-31 Siemens Ag Transmitting method and circuit device for message packet in communication network
US6781993B1 (en) 1998-07-24 2004-08-24 Fujitsu Limited Switch and switching method for processing communication data of a particular connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06276231A (en) * 1993-03-02 1994-09-30 Internatl Business Mach Corp <Ibm> Message packet transmitter
JPH0730559A (en) * 1993-05-28 1995-01-31 Siemens Ag Transmitting method and circuit device for message packet in communication network
US6781993B1 (en) 1998-07-24 2004-08-24 Fujitsu Limited Switch and switching method for processing communication data of a particular connection

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