JPS63167536A - Multi-direction multiplex communication system - Google Patents

Abstract

PURPOSE:To attain communication between terminal equipments within the same repeater station area not through a master station by providing a bypass through which intra-office connection information applying intra-office connection between communication destination terminal equipments is sent and a call is supplied to the repeater station and connecting both the terminal equipments to the repeater station. CONSTITUTION:In setting a channel between terminal equipments within a communication area of one and the same repeater station 18, a master station 17 uses a connection discrimination means 19 that the caller and destination terminal equipments are within the communication area of the one and same repeater station, uses a detection means 20 so as to send the connection information to apply intra-office connection between both the terminal equipments to the repeater station 18, and one channnel 11 is assigned between the master station 17 and the repeater station 18. Both the terminal equipments are connected mutually by a bypass channel 24 based on the intra-office connection information in the repeater station 18. Thus, the communication between the terminal equipments within the communication area of the same repeater station is conducted not through the master station.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、中継局又は中継局の通信領域内にある子局に
接続されている端末装置に呼が生起した場合にのみ、親
局と中継局間、あるいは親局と子局間に通信用チャンネ
ルを割当てるデマンド・アサイメント方式により制御さ
れる多方向多重通信システムに関し、特に、同一中継局
の通信領域内にある端末装置間の通信において通信用チ
ャンネル利用効率の高い多方向多重通信システムに関す
る。Detailed Description of the Invention (Industrial Field of Application) The present invention is capable of communicating with a master station only when a call occurs to a terminal device connected to a relay station or a slave station within the communication area of the relay station. Regarding a multidirectional multiplex communication system controlled by a demand assignment method that allocates communication channels between relay stations or between a master station and a slave station, especially in communication between terminal devices within the communication area of the same relay station. This invention relates to a multidirectional multiplex communication system with high communication channel utilization efficiency.

（従来の技術） 従来、多方向多重通信システムは、１つの親局と親局に
直接接続される１つ又は複数の中継局とその中継局の通
信領域内にあり１つ又は複数の中継局を中継して親局に
接続される１つ又は複数の子局と親局に直接接続される
１つ又は複数の子局と中継局および子局に接続される１
つ又は複数の端末装置により構成されており、端末装置
に呼が生起した場合にのみ親局と中継局間又は親局と子
局間に通信用チャンネルを割当てるデマンド・アサイメ
ント方式による通信用チャンネル割当制御手段により、
発呼端末装置と通信相手先端末装置との間に通信用チャ
ンネルが確立し通信が行われる。(Prior Art) Conventionally, a multidirectional multiplex communication system consists of one base station, one or more relay stations directly connected to the base station, and one or more relay stations within the communication area of the relay station. one or more slave stations that are connected to the master station by relaying the same, one or more slave stations that are directly connected to the master station, and one that is connected to the relay station and the slave station.
A communication channel that uses a demand assignment method, which is composed of one or more terminal devices, and allocates a communication channel between a master station and a relay station or between a master station and a slave station only when a call occurs to the terminal device. By the allocation control means,
A communication channel is established between the calling terminal device and the communication destination terminal device, and communication is performed.

例えば、１例として、第２図は１つの親局に１つの中継
局と１つの子局が直接接続され、その中継局の通信領域
内には２つの子局があって中継局を中継して親局と接続
され、中継局と各子局それぞれには１つの端末装置が接
続されている従来の多方向多重通信システムの構成図を
示すものである。For example, as an example, in Figure 2, one relay station and one slave station are directly connected to one master station, and there are two slave stations within the communication area of the relay station that relay the relay station. 1 shows a configuration diagram of a conventional multidirectional multiplex communication system in which a relay station is connected to a master station, and one terminal device is connected to a relay station and each slave station.

第２図において、１は親局、２は中継局、３゜３′、３
″は子局、４．４’、４”、４〜は端末装置、５は通信
領域、１１は通信用チャンネル（１番〜ｎ番）、１２は
発呼端末装置情報／通信相手先接続情報検出手段、１３
は通信終了情報検出手段、１４は発呼端末装置情報／通
信相手先接続情報送出手段、１５は通信終了情報送出手
段、１６は中継手段、１０１は親局・中継局間上り通信
路、１０２は親局・中継局間下り通信路、１０３．１０
３’は中継局・子局間上り通信路、１０４．１０４’は
中継局・子局間下り通信路、１０５は親局・子局間上り
通信路、１０６は親局・子局間下り通信路、１０７，１
０７’、１０７″は子局・端末装置面通信路、１０８は
中継局・端末装置間通信路である。In Figure 2, 1 is the master station, 2 is the relay station, 3°3', 3
" is a slave station, 4.4', 4", 4 to terminal device, 5 is communication area, 11 is communication channel (number 1 to n), 12 is calling terminal device information/communication partner connection information detection means, 13
14 is a communication end information detection means, 14 is a calling terminal device information/communication partner connection information sending means, 15 is a communication end information sending means, 16 is a relay means, 101 is an uplink communication path between the master station and the relay station, and 102 is a communication end communication path. Downlink communication path between master station and relay station, 103.10
3' is an uplink communication path between a relay station and a slave station, 104.104' is a downlink communication path between a relay station and a slave station, 105 is an uplink communication path between a master station and a slave station, and 106 is a downlink communication between a master station and a slave station. Road, 107,1
07' and 107'' are slave station/terminal device side communication paths, and 108 is a relay station/terminal device communication path.

上記多方向多重通信システムにおいて、例えば、端末装
置４が発呼端末装置、端末装置４′が通信相手先端末装
置である場合について以下説明する。In the multidirectional multiplex communication system described above, a case will be described below in which, for example, the terminal device 4 is a calling terminal device and the terminal device 4' is a communication destination terminal device.

子局３に接続されている端末装置４がら子局３′に接続
されている端末装置４′に対して呼が生起した場合、子
局３は発呼端末装置４の発呼を検出し、発呼端末装置情
報／通信相手先接続情報送出手段１４により、所定のデ
マンド・アサイメント方式の制御手順に従って、発呼端
末装置情報（発呼端末装置が端末装置４であることを示
す情報、を含む）と通信相手先接続情報（通信相手先端
末装置が端末装置４′であることを示す情報を含む）を
中継局２を中継して親局１へ送出する。When a call occurs from the terminal device 4 connected to the slave station 3 to the terminal device 4' connected to the slave station 3', the slave station 3 detects the call from the calling terminal device 4, The calling terminal device information/communication partner connection information sending means 14 transmits calling terminal device information (information indicating that the calling terminal device is the terminal device 4) according to a predetermined demand assignment method control procedure. ) and communication partner connection information (including information indicating that the communication partner terminal device is the terminal device 4') are transmitted to the master station 1 via the relay station 2.

すなわち、子局３から送出された発呼端末装置情報と通
信相手先接続情報は、中継局２・子局３間上り通信路１
０３に設定されている所定のチャンネルを介して中継局
２に入力され、中継手段１６により中継処理されて中継
局２から出力され、親局１・中継局２間上り通信路１０
１に設定されている所定のチャンネルを介して親局１へ
入力される。親局１は、発呼端末装置情報／通信相手先
接続情報検出手段１２により子局３からの発呼端末装置
情報を検出すると、通信用チャンネル（１番〜ｎ番）１
１の中から未使用の１つの通信用チャンネルを選択しく
例えば通信用チャンネル（１番）を選択し）、所定のデ
マンド・アサイメント方式の制御手順に従って、親局ｌ
・中継局２間上り通信路１０１、同下り通信路１０２、
中継局２・子局３間上り通信路１０３、同下り通信路１
０４のそれぞれに通信用チャンネル（１番）を割当て、
親局１・中継局２・子局３間に通信用の回線を確立する
。更に親局１は、子局３からの通信相手先接続情報に基
づき、通信相手先端末装置４′が接続されている子局３
′に対して、通信用チャンネル（１番〜ｎ番）１１の中
から未使用のもう１つの通信用チャンネルを選択しく例
えば通信用チャンネル（２番）を選択し）、親局１・中
継局２間上り通信路１０１、同下り通信路１０２、中継
局２・子局３′間上り通信路１０３’、同下り通信路１
０４′のそれぞれに通信用チャンネル（２番）を割当て
、親局１・中継局２・子局３′間に通信用の回線を確立
する。That is, the calling terminal device information and communication partner connection information sent from the slave station 3 are transmitted through the uplink communication path 1 between the relay station 2 and the slave station 3.
The signal is input to the relay station 2 via a predetermined channel set to 03, relayed by the relay means 16, and output from the relay station 2. The uplink communication path 10 between the master station 1 and relay station 2
The signal is input to the master station 1 via a predetermined channel set to 1. When the master station 1 detects the calling terminal device information from the slave station 3 by the calling terminal device information/communication partner connection information detection means 12, the master station 1 detects the calling terminal device information from the slave station 3,
Select one unused communication channel from 1 (for example, communication channel (No. 1)), and follow the control procedure of the predetermined demand assignment method to control the master station l.
・Uplink communication path 101 between relay stations 2, downlink communication path 102,
Uplink communication path 103 between relay station 2 and slave station 3, downlink communication path 1
Assign a communication channel (number 1) to each of 04,
A communication line is established between the master station 1, relay station 2, and slave station 3. Furthermore, based on the communication partner connection information from the slave station 3, the master station 1 connects the slave station 3 to which the communication partner terminal device 4' is connected.
′, select another unused communication channel from the communication channels (numbers 1 to n) 11. For example, select the communication channel (number 2)), and select the master station 1/relay station. Uplink communication path 101 between relay station 2 and downstream communication path 102, uplink communication path 103' between relay station 2 and slave station 3', and downlink communication path 1 between relay station 2 and slave station 3'.
A communication channel (No. 2) is assigned to each of the terminals 04' and a communication line is established between the master station 1, relay station 2, and slave station 3'.

すなわち、発呼端末装置４と通信相手先端末袋Ｍ４’が
同一中継局２の通信領域５の内にあるにもかかわらず、
２つの通信用チャンネルを使用することにより発呼端末
装置４と通信相手先端末袋Ｗ４′が中継局２を中継し親
局１を介して相互接続され通信情報が相互伝送される。That is, even though the calling terminal device 4 and the communication destination terminal bag M4' are within the communication area 5 of the same relay station 2,
By using two communication channels, the calling terminal device 4 and the communication destination terminal W4' are interconnected via the relay station 2 and the master station 1, and communication information is mutually transmitted.

端末装置４と同４′間の通信終了時には、子局３又は同
３′は、通信終了情報送出手段１５又は同１５′により
、自局に接続されている端末装置４又は同４′からの通
信終了を検出し、所定のデマント・アサイメント方式の
制御手順に従って、通信終了情報を割当てられた通信用
チャンネル（１番）又は同（２番）を介して中継局２を
中継して親局１へ送出する。ｆｆ１局１は、通信終了＋
ｆｆｆｆ比検出手段により通信終了情報を検出すると、
通信終了情報が送られてきた方の子局（例えば子局３と
する）に対して割当てである通信用チャンネル（１番）
を解除し、通信終了が生じた端末装置４と通信していた
端末装置４′に対してもう１つの通信用チャンネル（２
番）を介して通信終了情報を送出し、次に通信用チャン
ネル（２番）を解除する。When the communication between the terminal device 4 and the terminal device 4' ends, the slave station 3 or the slave station 3' transmits information from the terminal device 4 or the slave station 4' connected to the slave station by means of the communication end information sending means 15 or the slave station 15'. Detects the end of communication, and relays the communication end information to the master station via relay station 2 via the assigned communication channel (No. 1) or channel (No. 2) according to the control procedure of the predetermined demant assignment method. Send to 1. ff1 station 1 has finished communication +
When communication end information is detected by the ffff ratio detection means,
Communication channel (number 1) assigned to the slave station to which the communication end information was sent (for example, slave station 3)
is released, and another communication channel (2
The communication end information is sent via the communication channel (No. 2), and then the communication channel (No. 2) is released.

以上のように、従来の多方向多重通信システムにおいて
は、デマンド・アサイメント方式の制御手順に従って端
末装置に呼が生起した時にのみ通信用チャンネルが割当
てられ、効率良く通信が行われる。As described above, in the conventional multidirectional multiplex communication system, a communication channel is assigned only when a call occurs to a terminal device according to the demand assignment control procedure, and communication is performed efficiently.

（発明が解決しようとする問題点） しかしながら、上記従来技術においては、発呼端末装置
と通信相手先端末装置が同一中継局の通信領域内にある
場合でも、両端末装置間の通信が親局・中継局間通信路
に通信用チャンネルを介して行われるため、親局・中継
局間に発呼端末装置用と通信相手先端末装置用の２つの
通信用チャンネルが通信中占有され、このためシステム
の通信用チャンネル利用効率が低いという問題がある。(Problems to be Solved by the Invention) However, in the above-mentioned conventional technology, even if the calling terminal device and the communication destination terminal device are within the communication area of the same relay station, the communication between the two terminal devices is・Since communication is carried out via a communication channel in the communication path between relay stations, two communication channels are occupied between the parent station and the relay station, one for the calling terminal device and the other for the communication destination terminal device, and for this reason There is a problem in that the efficiency of using communication channels in the system is low.

本発明の目的は、上記従来技術の問題点を解決するため
、親局において、発呼端末装置と通信相手先端末装置と
が同一中継局の通信領域内であることを判断し中継局へ
局内接続情報を送出する手段および親局・中継局間に１
つの通信用チャンネルを割当てる手段を有し、中継局に
おいて、局内接続情報に基づき発呼端末装置と通信相手
先端末装置間を相互に接続するバイパス通信路を設は局
内接続する手段を有することにより、通信用チャンネル
の利用効率の高い且つ確実な通信ができる多方向多重通
信システムを提供しようとするものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. Means for sending connection information and 1 between master station and relay station
By having a means for allocating one communication channel, and having a means for establishing an intra-office connection at the relay station by establishing a bypass communication path for mutually connecting a calling terminal device and a communication destination terminal device based on intra-office connection information. , it is an object of the present invention to provide a multi-directional multiplex communication system that is capable of highly efficient use of communication channels and reliable communication.

（問題点を解決するための手段） 本発明は、上記の目的を達成するために、次の手段構成
を有する。すなわち、本発明の多方向多重通信システム
は、１つの親局と、前記親局に直接接続される１つ又は
複数の中継局と、前記中継局の通信領域内にあり１つ又
は複数の中継局を中継して前記親局に接続される１つ又
は複数の子局と、前記中継局および前記子局に接続され
る１つ又は複数の端末装置とを少なくとも含んで構成さ
れ、前記親局と前記中継局および前記子局間には、デマ
ンド・アサイメント方式の制御によって前記端末装置に
呼が生起した時にのみ割当てられる所要数の通信用チャ
ンネルを少なくとも含む通信路を備えており；　前記中
継局および前記子局には、接続されている前記端末装置
の発呼時に、前記所定のデマンド・アサイメント制御手
順に従って発呼端末装置情報および通信相手先接続情報
を前記親局へ送出する手段と；　前記親局には、前記所
定のデマンド・アサイメント制御手順に従って発呼端末
装置が接続されている前記中継装置又は前記子局に対し
て前記所要数の通信用チャンネルの中から１つの所定の
通信用チャンネルを割当てる手段および前記発呼端末装
置情報と前記通信相手先接続情報とにより発呼端末装置
と通信相手先端末装置が同一中継局の通信領域内の端末
装置であると判断した場合、局内接続情報を前記中継局
へ送出する手段と；　前記中継局には、前記局内接続情
報に基づき、前記発呼端末装置と前記通信相手先端末装
置とをバイパス通信路により相互に局内接続する手段、
並びに、前記発呼端末装置と前記通信相手先端末装置間
の通信終了時に、通信終了情報を割当てられている前記
１つの所定の通信用チャンネルを介して親局へ送出する
手段および前記局内接続を解除する手段と；　前記親局
には、前記通信終了情報に基づき、前記中継局又は前記
子局に対して割当てた前記１つの所定の通信用チャンネ
ルを解除する手段と；　を具備することを特徴とする多
方向多重通信システムである。(Means for solving the problems) In order to achieve the above object, the present invention has the following means configuration. That is, the multidirectional multiplex communication system of the present invention includes one base station, one or more relay stations directly connected to the base station, and one or more relay stations located within the communication area of the relay station. The base station is configured to include at least one or more slave stations connected to the master station via a relay station, and one or more terminal devices connected to the relay station and the slave station, and the master station and between the relay station and the slave station, a communication path is provided that includes at least a required number of communication channels that are allocated only when a call occurs to the terminal device under demand assignment control; The station and the slave station include means for transmitting calling terminal device information and communication partner connection information to the master station in accordance with the predetermined demand assignment control procedure when the connected terminal device makes a call. ; The master station is configured to transmit one predetermined communication channel from the required number of communication channels to the relay device or the slave station to which the calling terminal device is connected according to the predetermined demand assignment control procedure. When it is determined that the calling terminal device and the communicating party terminal device are terminal devices within the communication area of the same relay station based on the means for allocating a communication channel, the calling terminal device information, and the communicating party connection information, means for sending intra-office connection information to the relay station; the relay station includes means for interconnecting the calling terminal device and the communication destination terminal device to each other via a bypass communication path based on the intra-office connection information; ,
and means for transmitting communication termination information to a master station via the one predetermined communication channel assigned thereto at the end of communication between the calling terminal device and the communication destination terminal device, and the intra-office connection. means for canceling; and means for canceling the one predetermined communication channel allocated to the relay station or the slave station in the master station based on the communication termination information; It is a multidirectional multiplex communication system.

（作　用） １つの親局と、親局に直接接続される１つ又は複数の中
継局と、その中継局の通信領域内にあり１つ又は複数の
中継局を中継して親局に接続される１つ又は複数の子局
と、中継局および子局に接続される１つ又は複数の端末
装置とを少なくとも含んで構成され、親局と中継局およ
び子局間には、デマンド・アサイメント方式の制御によ
って端末装置に呼が生起した場合にのみ割当てられる所
要数の通信用チャンネルを少なくとも含む通信路を備え
た多方向多重通信システムにおいて、先ず、発呼端末装
置が接続されている子局（又は中継局）は、発呼端末装
置からの発呼を検出し、所定のデマンド・アサイメント
方式の制御手順に従って、発呼端末装置情報と通信相手
先接続情報を中継局を中継して親局へ送出する。親局は
、子局（又は中継局）から送出された発呼端末装置情報
／通信相手先接続情報を検出すると、所定のデマンド・
アサイメント方式の制御手順に従って発呼端末装置が接
続されている子局（又は中継局）に対して所要数の通信
用チャンネルの中から１つの所定の通信用チャンネルを
割当て、親局・中継局・子局間（又は親局・中継局間）
の通信路に通信用の回線を確立する。更に親局は、子局
（又は中継局）からの発呼端末装置情報と通信相手先接
続情報に基づき、発呼端末装置と通信相手先端末装置と
が同一中継局の通信領域内の端末装置であるか否がを判
断し、同一中継局の通信領域内にあると判断した場合は
、発呼端末装置と通信相手先端末装置とを中継局内でバ
イパス接続させるための局内接続情報を中継局へ送出す
る。中継局は、親局より送出されてきた局内接続情報を
検出すると、発呼端末装置と通信相手先端末装置とをバ
イパス通信路により相互に局内接続する０以上の作用に
より、発呼端末装置と通信相手先端末装置間の通信情報
は中継局を中継して親局を介することなしに中継局内で
バイパスして相互伝送される。(Function) One master station, one or more relay stations directly connected to the master station, and one or more relay stations within the communication area of the relay station connected to the master station by relaying. and one or more terminal devices connected to the relay station and the slave stations, and there is demand assignment between the master station and the relay stations and slave stations. In a multidirectional multiplex communication system equipped with a communication path including at least a required number of communication channels that are allocated only when a call occurs to a terminal device under control of the communication method, first, The station (or relay station) detects a call from a calling terminal device, and relays the calling terminal device information and communication partner connection information through the relay station according to a predetermined demand assignment method control procedure. Send to the master station. When the master station detects the calling terminal device information/communication partner connection information sent from the slave station (or relay station), the master station performs a predetermined demand
According to the control procedure of the assignment method, one predetermined communication channel is assigned from among the required number of communication channels to the slave station (or relay station) to which the calling terminal device is connected, and the master station/relay station・Between slave stations (or between master station and relay station)
Establish a communication line on the communication path. Furthermore, based on the calling terminal device information and communication destination connection information from the slave station (or relay station), the master station determines whether the calling terminal device and the communication destination terminal device are terminal devices within the communication area of the same relay station. If it is determined that they are within the communication area of the same relay station, the relay station sends the intra-station connection information to establish a bypass connection between the calling terminal device and the communication destination terminal device within the relay station. Send to. When the relay station detects the intra-office connection information sent from the master station, the relay station connects the calling terminal device and the communication destination terminal device within the station through a bypass communication path. Communication information between communication partner terminal devices is relayed through the relay station and bypassed within the relay station without going through the master station and is mutually transmitted.

発呼端末装置と通信相手先端末装置間の通信終了時にお
いては、中継局は、通信終了情報を親局・中継局間に割
当てられている１つの所定の通信用チャンネルを介して
親局へ送出する。When the communication between the calling terminal device and the communication destination terminal device ends, the relay station sends the communication end information to the master station via one predetermined communication channel allocated between the master station and the relay station. Send.

また、発呼端末装置と通信相手先端末装置をバイパス通
信路で相互接続している局内接続を解除する。親局は、
中継局からの通信終了情報を検出すると、親局・中継局
間および中継局・子局間に割当てた所定の通信用チャン
ネルを解除する。Furthermore, the intra-office connection interconnecting the calling terminal device and the communication destination terminal device via a bypass communication path is canceled. The main station is
When communication end information from the relay station is detected, predetermined communication channels allocated between the master station and the relay station and between the relay station and the slave stations are released.

本発明の多方向多重通信システムは、以上の作用により
、親局と中継局間に１つの所定の通信用チャンネルのみ
を通信中占有するだけであるので、システムの通信用チ
ャンネル利用効率が高いシステムであり、また、通信終
了情報も親局と中継局間に割当てられている所定の通信
用チャンネルを利用して伝送されるので確実な通信がで
きるシステムである。Due to the above-described effects, the multidirectional multiplex communication system of the present invention only occupies one predetermined communication channel between the master station and the relay station during communication, so the system has high communication channel usage efficiency. Furthermore, since communication end information is also transmitted using a predetermined communication channel allocated between the master station and the relay station, the system allows reliable communication.

（実　施　例） 以下、本発明の多方向多重通信システムの実施例を図面
を参照して説明する。第１図は実施例の多方向多重通信
システムの構成図であり、１つの親局に１つの中継局と
１つの子局が直接接続され、その中継局の通信領域内に
は２つの子局が存在しており、中継局を中継して親局と
接続され、各子局と中継局それぞれには１つの端末装置
が接続されている場合を１例として示している。(Example) Hereinafter, an example of the multidirectional multiplex communication system of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a multidirectional multiplex communication system according to an embodiment, in which one relay station and one slave station are directly connected to one master station, and two slave stations are located within the communication area of the relay station. As an example, a case is shown in which a terminal device exists and is connected to a master station via a relay station, and one terminal device is connected to each slave station and relay station.

１７は親局、１８は中継局、１９は局内接続判断手段、
２０は局内接続完了情報検出手段、２１は従来中継局手
段、２２は通信終了情報送出手段、２３は局内接続情報
検出手段、２４はバイパス通信路、２５は局内接続完了
情報送出手段、２６は局内接続解除手段である。なお、
その他の番号を付与した構成要素は第２図の従来の多方
向多重通信システムの構成図における同番号の構成要素
と同様のものであり、以下の記述においては、それらの
構成要素に関係する作用についての詳細説明を省く。第
１図において、端末装置４が発呼端末装置、端末装置４
′が通信相手先端末装置である場合について説明する。17 is a master station, 18 is a relay station, 19 is an intra-station connection determination means,
20 is an intra-office connection completion information detection means, 21 is a conventional relay station means, 22 is a communication end information sending means, 23 is an intra-office connection information detection means, 24 is a bypass communication path, 25 is an intra-office connection completion information sending means, and 26 is an intra-office connection completion information sending means. This is a connection release means. In addition,
The components given other numbers are the same as the components with the same numbers in the configuration diagram of the conventional multidirectional multiplex communication system shown in FIG. A detailed explanation of this will be omitted. In FIG. 1, a terminal device 4 is a calling terminal device, a terminal device 4
The case where ' is the communication destination terminal device will be explained.

子局３に接続されている端末装置４から子局３′に接続
されている端末装置４′に対して呼が生起した場合、子
局３は発呼端末装置４からの発呼を検出し、所定のデマ
ンド・アサイメント方式の制御手順に従って発呼端末装
置情報と通信相手先接続情報を中継局１８・子局３間上
り通信路１０３および親局１７・中継局１８間上り通信
路１０１に設定されている所定のチャンネルを介して中
継局１８を中継して親局１７へ送出する。親局１７は、
発呼端末装置情報／通信相手先接続情報検出手段１２に
より子局３からの発呼端末装置情報を検出すると、通信
用チャンネル（１番〜ｎ番）１１の中から未使用の１つ
の通信用チャンネルを選択しく例えば通信用チャンネル
（１番）を選択し）、所定のデマンド・アサイメント方
式の制御手順に従って親局１７・中継局１８間上り通信
路１０１、同下り通信路１０２、中継局１８・子局３間
上り通信路１０３、同下り通信路１０４に通信用チャン
ネル（１番）を割当て、親局１７・中継局１８・子局３
間に通信用の回線を確立する。When a call occurs from the terminal device 4 connected to the slave station 3 to the terminal device 4' connected to the slave station 3', the slave station 3 detects the call from the calling terminal device 4. , the calling terminal device information and the communication partner connection information are transmitted to the uplink communication path 103 between the relay station 18 and the slave station 3 and the uplink communication path 101 between the master station 17 and the relay station 18 according to a predetermined demand assignment method control procedure. The data is transmitted to the master station 17 via the relay station 18 via a predetermined channel that has been set. The master station 17 is
When the calling terminal device information/communication partner connection information detecting means 12 detects the calling terminal device information from the slave station 3, one unused communication channel from among the communication channels (numbers 1 to n) 11 is detected. Select a channel (for example, select the communication channel (No. 1)), and follow a predetermined demand assignment control procedure to connect the uplink communication path 101 between the master station 17 and the relay station 18, the downlink communication path 102, and the relay station 18.・A communication channel (No. 1) is assigned to the uplink communication path 103 and the downlink communication path 104 between the slave stations 3, and the master station 17, relay station 18, and slave station 3
Establish a communication line between them.

更に親局１７は、局内接続判断手段１９により、子局３
からの発呼端末装置情報と通信相手先接続情報とに基づ
き発呼端末装置４と通信相手先端末装置！４’が同一中
継局１８の通信領域５の内にあると判断し、通信用チャ
ンネル（１番〜ｎ番）１１の中の未使用のもう１つの通
信用チャンネルを選択しく例えば通信用チャンネル（２
番）を選択し）、一度、親局１７・中継局１８間上り通
信路１０１、同下り通信路１０２、中継局１８・子局３
′間上り通信路１０３’、同下り通信路１０４′に通信
用チャンネル（２番）を割当て、親局１７・中継局１８
・子局３′間に通信用の回線を確立して、次に、発呼端
末装置４と通信相手先端末装置４′を中継局１８内で相
互に局内接続する為の局内接続情報を中継局１８へ送出
する。Furthermore, the master station 17 determines whether the slave station 3
Based on the calling terminal device information and the communication destination connection information from the calling terminal device 4 and the communication destination terminal device! 4' is within the communication area 5 of the same relay station 18, and selects another unused communication channel among the communication channels (numbers 1 to n) 11. 2
), once, the uplink communication path 101 between the master station 17 and the relay station 18, the downlink communication path 102, the relay station 18 and the slave station 3
A communication channel (No. 2) is assigned to the uplink communication path 103' and the downlink communication path 104', and the master station 17 and relay station 18
・Establish a communication line between the slave stations 3', and then relay intra-office connection information for interconnecting the calling terminal device 4 and the communication destination terminal device 4' within the relay station 18. Send to station 18.

中継局１８は、局内接続情報検出手段２３により、親局
１７からの局内接続情報を検出し、バイパス通信路２４
を制御して、子局３に割当てられた通信用チャンネル（
１番）と子局３′に割当てられた通信用チャンネル（２
番）とをバイパス通信路２４で相互接続する。このよう
にして、端末装置４と同４′は親局１７を介さず中継局
１８でバイパス接続され通信情報が相互伝送される。The relay station 18 detects the intra-office connection information from the master station 17 by the intra-office connection information detection means 23, and connects the bypass communication path 24.
to control the communication channel (
1) and the communication channel (2) assigned to slave station 3'.
(No.) are interconnected by a bypass communication path 24. In this way, the terminal devices 4 and 4' are bypass-connected through the relay station 18 without going through the master station 17, and communication information is mutually transmitted.

中継局１８は、バイパス通信路２４における局内接続が
完了すると、局内接続完了情報送出手段２５により局内
接続完了情報を親局１７へ送出する。ＦＡ局１７は、局
内接続完了情報検出手段２０により中継局１８からの局
内接続完了情報を検出し、所定のデマンド・アサイメン
ト方式の制御手順に従い親局１７・中継局１８間上り通
信路１０１および同下り通信路１０２に一度割当てた通
信用チャンネル（２番）の割当てを解除する。When the intra-office connection via the bypass communication path 24 is completed, the relay station 18 sends out intra-office connection completion information to the master station 17 using the intra-office connection completion information sending means 25 . The FA station 17 detects the intra-office connection completion information from the relay station 18 using the intra-office connection completion information detection means 20, and according to the control procedure of the predetermined demand assignment method, the uplink communication path 101 and The communication channel (No. 2) once allocated to the downlink communication path 102 is released.

この結果、親局１７と中継局１８間には通信用チャンネ
ル（１番）のみの１チヤンネルしか割当てられていない
が、端末装置４および同４′に対して通信用チャンネル
が２チャンネル割当てられていて中継局１８で接続され
ているので通信可能となっている。As a result, only one communication channel (number 1) is allocated between the master station 17 and the relay station 18, but two communication channels are allocated to the terminal devices 4 and 4'. Since they are connected through a relay station 18, communication is possible.

又、端末装置４と同４′の通信終了時においては、子局
３又は同３′は自局に接続されている端末装置４又は同
４′の通信終了を検出し、所定のデマンド・アサイメン
ト方式の制御手順に従い、通信終了情報を割当てられて
いる通信用チャンネル（１番）又は同（２番）を使用し
て中継局１８へ送出する。中継局１８は、通信終了情報
送出手段２２により通信終了情報を親局１７・中継局１
８間上り通信路１０１に残されている通信用チャンネル
（１番）を使用して親局１７へ送出する。Furthermore, when the communication between the terminal device 4 and the terminal device 4' ends, the slave station 3 or the slave station 3' detects the end of the communication between the terminal device 4 or the terminal device 4' connected to the own station, and performs a predetermined demand assignment. According to the control procedure of the communication method, the communication end information is sent to the relay station 18 using the assigned communication channel (No. 1) or the same (No. 2). The relay station 18 transmits the communication end information to the master station 17 and the relay station 1 by the communication end information sending means 22.
The data is sent to the master station 17 using the communication channel (No. 1) left on the uplink communication path 101 for 8 minutes.

親局１７は、通信終了情報検出手段１３により通信終了
情報を検出すると、通信終了情報を送出した子局（例え
ば子局３とする）と中継局１８間の上り通信路１０３お
よび同下り通信路１０４に割当てられている通信用チャ
ンネル（１番）の解除と中継局１８のバイパス通信路２
４の局内接続解除を親局１７・中継局１８間下り通信路
１０２に残されている通信用チャンネル（１番）を使用
して中継局１８へ送出するとともに、通信終了が生じた
端末装置４と通信していた相手方の端末装置４′へ通信
終了情報を送出する。When the master station 17 detects the communication end information by the communication end information detection means 13, it connects the uplink communication path 103 and the downlink communication path between the slave station (for example, slave station 3) that sent the communication end information and the relay station 18. Cancellation of the communication channel (No. 1) assigned to 104 and bypass communication path 2 of relay station 18
4 to the relay station 18 using the communication channel (No. 1) left on the downlink communication path 102 between the master station 17 and the relay station 18, and the terminal device 4 where the communication termination occurred. The communication end information is sent to the terminal device 4' of the other party with which the terminal device 4' was communicating.

中継局１８は、局内接続解除手段２６により、親局１７
からの局内接続解除情報に基づき、バイパス通信路２４
で既に接続されている局内接続を解除する。最後に、親
局１７は、中継局１８・子局３′間上り通信路１０３’
、同下り通信路１０４′に割当てられている通信用チャ
ンネル（２番）と親局１７・中継局１８間上り通信路１
０１、同下り通信路１０２に割当てられている通信用チ
ャンネル（１番）を解除する。The relay station 18 is connected to the master station 17 by the intra-station connection release means 26.
Based on the intra-office connection release information from
to cancel the already connected intra-station connection. Finally, the master station 17 connects the uplink communication path 103' between the relay station 18 and the slave station 3'.
, the communication channel (No. 2) assigned to the same downlink communication path 104' and the uplink communication path 1 between the master station 17 and the relay station 18
01, the communication channel (No. 1) assigned to the downlink communication path 102 is released.

以上、端末装置４と同４′間の通信について説明したが
、通信領域５の内にある他の端末装置に関しても同様の
通信を行うことができることは明らかである。Although the communication between the terminal device 4 and the terminal device 4' has been described above, it is clear that similar communication can be performed with respect to other terminal devices within the communication area 5.

（発明の効果） 以上説明したように、本発明の多方向多重通信システム
においては、同一中継局の通信領域内にある端末装置間
に通信路を設定する場合、親局には、発呼端末装置と通
信相手先端末装置が同一中継局の通信領域内にあること
を判断する手段と中継局へ両端末装置間を相互に局内接
続するための局内接続情報を送出する手段と親局・中継
局間に１つの通信用チャンネルを割当てる手段を有し、
中継局には、局内接続情報に基づき発呼端末装置と通信
相手先端末装置間を相互に接続するバイパス通信路を設
は局内接続する手段を有することにより、同一中継局の
通信領域内にある端末装置間の通信を親局を介さないで
行うことができ、また親局と中継局間には通信用チャン
ネルを１チヤンネルだけ割当てるだけで通信路が設定で
きる。(Effects of the Invention) As explained above, in the multidirectional multiplex communication system of the present invention, when setting up a communication path between terminal devices within the communication area of the same relay station, the master station has a calling terminal. A means for determining whether the device and the communication destination terminal device are within the communication area of the same relay station, a means for transmitting intra-station connection information for mutually intra-station connection between both terminal devices to the relay station, and a master station/relay. having means for allocating one communication channel between stations;
The relay station has a bypass communication path that interconnects the calling terminal device and the communication destination terminal device based on the intra-station connection information, and has a means for intra-office connection. Communication between terminal devices can be performed without going through a master station, and a communication path can be established between a master station and a relay station by simply allocating only one communication channel.

しかも通信終了情報も親局・中継局間に割当てられた１
つの通信用チャンネルを使用して親局へ送出することが
できる。Moreover, the communication end information is also assigned between the master station and the relay station.
The data can be sent to the master station using two communication channels.

°　従って、本発明により、従来技術に比較して高い通
信用チャンネル利用効率が得られ且つ確実に通信ができ
るという効果がある。Therefore, the present invention has the effect that higher communication channel usage efficiency can be obtained and reliable communication can be achieved compared to the conventional technology.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明実施例の多方向多重通信システムの構成
図、第２図は従来の多方向多重通信システムの構成図で
ある。 １・・・・・・親局、　２・・・・・・中継局、　３．
３’、３″・・・・・・子局、　４．４’　、４″、４
−・・・・・・端末装置、５・・・・・・通信領域、　
１１・・・・・・通信用チャンネル（１番〜ｎ番）、　
１２・・・・・・発呼端末装置情報／通信相手先接続情
報検出手段、　１３・・・・・・通信終了情報検出手段
、　１４．１４’　、１４″・・・・・・発呼端末装置
情報／通信相手先接続情報送出手段、１５．１５’、１
５″・・・・・・通信終了情報送出手段、１６・・・・
・・中継手段、　１７・・・・・・親局、　１８・・・
・・・中継局、　１９・・・・・・局内接続判断手段、
　２０・・・・・・局内接続完了情報検出手段、　２１
・・・・・・従来中継局手段、　２２・・・・・・通信
終了情報送出手段、２３・・・・・・局内接続情報検出
手段、　２４・・・・・・バイパス通信路、　２５・・
・・・・局内接続完了情報送出手段、　２６・・・・・
・局内接続解除手段、　１０１・・・・・・親局・中継
局間上り通信路、　１０２・・・・・・親局・中継局間
下り通信路、　１０３，１０３’・・・・・・中継局・
子局間上り通信路、　１０４，１０４’・・・・・・中
継局・子局間下り通信路、　　１０５・・・・・・親局
・子局間上り通信路、　１０６・・・・・・親局・子局
間下り通信路、　１０７．１０７’、１０７″・・・・
・・子局・端末装置間通信路、　１０８・・・・・・中
継局・端末装置間通信路。FIG. 1 is a block diagram of a multidirectional multiplex communication system according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional multidirectional multiplex communication system. 1... Master station, 2... Relay station, 3.
3', 3''...Slave station, 4.4', 4'', 4
-...Terminal device, 5...Communication area,
11...Communication channel (number 1 to n),
12...Calling terminal device information/communication partner connection information detection means, 13...Communication end information detection means, 14.14', 14''...Calling terminal Device information/communication partner connection information sending means, 15.15', 1
5″...Communication end information sending means, 16...
...Relay means, 17... Master station, 18...
...Relay station, 19...Intra-station connection judgment means,
20... Intra-office connection completion information detection means, 21
... Conventional relay station means, 22 ... Communication end information sending means, 23 ... Intra-office connection information detection means, 24 ... Bypass communication path, 25.・
...Intra-office connection completion information sending means, 26...
- Intra-station connection release means, 101...Uplink communication path between the master station and the relay station, 102...Downlink communication path between the parent station and the relay station, 103, 103'... Relay station/
Uplink communication path between slave stations, 104, 104'... Downlink communication path between relay station and slave station, 105... Uplink communication path between master station and slave station, 106...・Downlink communication path between master station and slave station, 107.107', 107''...
. . . Communication path between slave station and terminal device, 108 . . . Communication path between relay station and terminal device.

Claims (1)

【特許請求の範囲】[Claims] １つの親局と、前記親局に直接接続される１つ又は複数
の中継局と、前記中継局の通信領域内にあり１つ又は複
数の中継局を中継して前記親局に接続される１つ又は複
数の子局と、前記中継局および前記子局に接続される１
つ又は複数の端末装置とを少なくとも含んで構成され、
前記親局と前記中継局および前記子局間には、デマンド
・アサイメント方式の制御によって前記端末装置に呼が
生起した時にのみ割当てられる所要数の通信用チャンネ
ルを少なくとも含む通信路を備えた多方向多重通信シス
テムにおいて；前記中継局および前記子局には、接続さ
れている前記端末装置の発呼時に、前記所定のデマンド
・アサイメント制御手順に従って発呼端末装置情報およ
び通信相手先接続情報を前記親局へ送出する手段と；前
記親局には、前記発呼端末装置情報／通信相手先接続情
報の検出に基づき、前記所定のデマンド・アサイメント
制御手順に従って発呼端末装置が接続されている前記中
継装置又は前記子局に対して前記所要数の通信用チャン
ネルの中から１つの所定の通信用チャンネルを割当てる
手段および前記発呼端末装置情報と前記通信相手先接続
情報とにより発呼端末装置と通信相手先端末装置が同一
中継局の通信領域内の端末装置であると判断した場合、
局内接続情報を前記中継局へ送出する手段と；前記中継
局には、前記局内接続情報の検出に基づき、前記発呼端
末装置と前記通信相手先端末装置とをバイパス通信路に
より相互に局内接続する手段、並びに、前記発呼端末装
置と前記通信相手先端末装置間の通信終了時に、通信終
了情報を割当てられている前記１つの所定の通信用チャ
ンネルを介して親局へ送出する手段および前記局内接続
を解除する手段と；前記親局には、前記通信終了情報の
検出に基づき、前記中継局又は前記子局に対して割当て
た前記１つの所定の通信用チャンネルを解除する手段と
；を具備することを特徴とする多方向多重通信システム
。one master station, one or more relay stations that are directly connected to the master station, and one or more relay stations that are within the communication area of the relay station and that are connected to the master station through one or more relay stations. one or more slave stations; and one connected to the relay station and the slave station.
at least one or more terminal devices,
A plurality of communication channels are provided between the master station, the relay station, and the slave station, including at least a required number of communication channels that are allocated only when a call occurs to the terminal device under demand assignment control. In the direction multiplex communication system; when the connected terminal device makes a call, the relay station and the slave station transmit calling terminal device information and communication partner connection information according to the predetermined demand assignment control procedure. means for sending to the master station; a calling terminal device is connected to the master station according to the predetermined demand assignment control procedure based on the detection of the calling terminal device information/communication partner connection information; a means for allocating one predetermined communication channel from among the required number of communication channels to the relay device or the slave station; and a calling terminal based on the calling terminal device information and the communication partner connection information. If it is determined that the device and the communication destination terminal device are terminal devices within the communication area of the same relay station,
means for sending intra-office connection information to the relay station; the relay station is configured to provide an intra-office connection between the calling terminal device and the communication destination terminal device via a bypass communication path based on the detection of the intra-office connection information; means for transmitting communication end information to a parent station via the one predetermined communication channel to which the communication end information is assigned when the communication between the calling terminal device and the communication destination terminal device ends; means for canceling the intra-station connection; the master station includes means for canceling the one predetermined communication channel allocated to the relay station or the slave station based on the detection of the communication termination information; A multidirectional multiplex communication system comprising: