JPS6041824A - System for transmitting transmission line switching information - Google Patents

System for transmitting transmission line switching information

Info

Publication number
JPS6041824A
JPS6041824A JP14987783A JP14987783A JPS6041824A JP S6041824 A JPS6041824 A JP S6041824A JP 14987783 A JP14987783 A JP 14987783A JP 14987783 A JP14987783 A JP 14987783A JP S6041824 A JPS6041824 A JP S6041824A
Authority
JP
Japan
Prior art keywords
transmission line
line
switching
station
transmission
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.)
Granted
Application number
JP14987783A
Other languages
Japanese (ja)
Other versions
JPH035695B2 (en
Inventor
Koichi Kobayashi
紘一 小林
Yoshikazu Arino
有野　好和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14987783A priority Critical patent/JPS6041824A/en
Publication of JPS6041824A publication Critical patent/JPS6041824A/en
Publication of JPH035695B2 publication Critical patent/JPH035695B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To realize a switching information transmission system to be applied both for a wire transmission line and a radio transmission line by transmitting a switching signal to both a spare transmission line and an active transmission line to be switched. CONSTITUTION:The system consists of each one line of incoming and outgoing of an active wire transmission line between stations A and B, each one line of incoming and outgoing lines 3, 4 of an active radio transmission line, each one line of incoming and outgoing 5, 6 of a spare wire transmission line, and switching devices 7, 8 capable of switching the active transmission line and the spare transmission line. When the station B detects a fault of the incoming line 3 of the active radio transmission line and transmits a request switching the active radio transmission lines 3, 4 to spare wire transmission lines 5, 6 to the station A, the station B transmits a switching signal to the outgoing line 4 of the active radio transmission line and the outgoing line 6 of the spare wire transmission line at first. Only when the station B receives the switching signal from both the lines 4 and 6, the station A conducts the switching operation while regarding it as the presence of the switching request of the active radio transmission lines 3, 4 from the station B.

Description

【発明の詳細な説明】 本発明は伝送路障害等により、株数の現用伝送路の内の
特定の現用伝送路を予備伝送路に切替える場合に必要と
される伝送路切替情報の伝送方式この種の切替において
最も重要なことは、伝送路の両端の局にて、同一の現用
伝送路を予備伝送路に切替えることである。そのために
は、切替要求が発生した局（一般には伝送路障害を検出
した局〔切替主動局〕）から対向局に対し、切替えるべ
き現用伝送路の番号を誤りさく伝送し７ｉ：ければなら
な（・０％に、切替要求が発生して（・ないのにもかか
わらず、対向局にて切替信号を受信したと判定するよう
な事があってはならない。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for transmitting transmission line switching information required when switching a specific working transmission line among a number of working transmission lines to a backup transmission line due to a transmission line failure or the like. The most important thing in switching is to switch the same working transmission line to the backup transmission line at both ends of the transmission line. In order to do so, the station where the switching request has occurred (generally the station that detected the transmission line failure [switching active station]) must transmit the number of the working transmission line to be switched to the opposite station without any error. It must not happen that a switching request occurs at (・0%) and the opposite station determines that a switching signal has been received even though there is no (・).

とのよ５な誤りを防ぐため、従来の切替′清報伝送方式
では、切替主動局より切替えるべき現用伝送路に伝送路
符号誤りを含んだ切替信号を送って（・る。これにより
、現用伝送路に通常流れて（・る信号と、切替信号とを
区別することができ、上述の誤りを防（・でいる。この
ような切替情報伝送方式では、「バイポーラ符号誤り」
を°清報信号として使用して（・る。このパイボーラネ
１号は、周知のごとく、原信号の「１」を「＋１」およ
び「−１」に交互に変換し、「０」は「０」に対応させ
るもので、「＋１」の後の「１」は必らず「−１」とガ
るもので、符号誤りを含んだパターンとしては、例えば
ｒ＋１．０．＋１．０．−１．０−、Ｉ　Ｊの様なパタ
ーンを使用している。従って、このような情報伝送方式
は、伝送路符号が伝送路の途中で変わらず［＋υはｒ＋
１ｊｔ　ｒ−１ｊは「−１」として伝送される伝送路に
対してだけ適用でき、無線伝送路のように「＋１」も「
−１」も同じ「１」として伝送される伝送路を途中に含
む場合に適用不可能である。In order to prevent errors such as 5, in the conventional switching 'clearance transmission system, the switching active station sends a switching signal containing a transmission line code error to the working transmission line to be switched. It is possible to distinguish between signals that normally flow on the transmission path and switching signals, thereby preventing the above-mentioned errors. In this switching information transmission system, "bipolar code errors"
As is well known, this Paiborane No. 1 converts the original signal ``1'' into ``+1'' and ``-1'' alternately, and ``0'' is converted into ``0''. ", and the "1" after "+1" is always "-1", and a pattern containing a code error is, for example, r+1.0.+1.0.-1. .0-, IJ. Therefore, in such an information transmission system, the transmission path code does not change during the transmission path [+υ is r+
1jt r-1j can be applied only to a transmission path where "-1" is transmitted, and "+1" is also "
-1" is also not applicable when the transmission path includes a transmission path that is transmitted as the same "1".

本発明は上述の欠点を除去し、有線伝送路にも無線伝送
路にも適用可北方切替情報伝送方式を提供することにあ
る。The object of the present invention is to eliminate the above-mentioned drawbacks and provide a northern switching information transmission system that can be applied to both wired and wireless transmission lines.

本発明は、予備伝送路および切替えるべき現用伝送路の
双方に切替信号を送ることにより対向局に切替えるべき
現用伝送路番号の情報を伝送することを特徴とする伝送
路切替情報伝送方式である。The present invention is a transmission line switching information transmission system characterized in that information about the number of the working transmission line to be switched to is transmitted to the opposite station by sending a switching signal to both the protection transmission line and the working transmission line to be switched.

次に本発明を図に示す回線例を参照して説明す伝送路の
上り下り各１回線と、現用無線伝送路の上り下り各１回
線３，４と、予備有線伝送路上り下り各１回線５，６お
よび現用伝送路と予備伝送路との切替を行なう切替装置
７．８とから構成されて（・る。Next, the present invention will be explained with reference to circuit examples shown in the drawings: one uplink and downlink transmission line, one uplink and downlink line 3 and 4 of the active wireless transmission line, and one uplink and downlink line each of the backup wired transmission line. 5, 6, and a switching device 7.8 for switching between the working transmission line and the backup transmission line.

いま、Ｂ局が現用無線伝送路の上り回線３の障害を検出
したので、Ａ局に現用無線伝送路３，４を予備有線伝送
路５，６に切替える要求を伝送することを考える。この
場合、まずＢ局より現用無線伝送路の下り回線４と予備
有線伝送路下り回線６とに切替信号を送出する。Ａ局で
は、回線４および６の双方より切替信号を受信したとき
のみ、Ｂ局から現用無線伝送路（３１４）の切替要求が
あったとして切替動作を行表５゜ 本発明によると上述のように現用および予備の双方に切
替信号を送信するため、切替信号として伝送路符号誤り
を含むものを使わなくてもよい。Now, since station B has detected a failure in the uplink 3 of the working wireless transmission path, consider transmitting a request to switch the working wireless transmission paths 3 and 4 to the backup wired transmission paths 5 and 6 to the station A. In this case, first, station B sends a switching signal to the downlink 4 of the working wireless transmission path and the downlink 6 of the backup wired transmission path. Only when the A station receives switching signals from both lines 4 and 6, it assumes that there is a request from the B station to switch the working wireless transmission path (314) and performs the switching operation as described in Table 5 according to the present invention. Since the switching signal is transmitted to both the working and standby systems at the same time, it is not necessary to use a switching signal containing a transmission line code error.

これは２つの伝送路の信号が同様に切替信号と同一にな
ることは非常に稀であるからである。This is because it is extremely rare for the signals on the two transmission paths to be the same as the switching signal.

また、一般的に、予備伝送路には、伝送路が正常かどう
かの監視用信号が常時送出されている。Further, generally, a monitoring signal is always sent to the backup transmission line to check whether the transmission line is normal.

このため、切替信号をこの監視信号と異なったものに選
べば対向局にて切替信号と誤って判定されることは力い
。なお、切替信号パターンとしては現用と予備とで同一
の信号あるいは異なった信号を使用してもよい。Therefore, if a switching signal different from this monitoring signal is selected, it is unlikely that the opposing station will mistakenly determine it as a switching signal. Note that as the switching signal pattern, the same signal or different signals may be used for the current and standby signals.

以上のように本発明によれば、伝送路構成に無関係に切
替情報を伝送することが可能と々る。As described above, according to the present invention, it is possible to transmit switching information regardless of the transmission path configuration.

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

第１図は回線構成例を示す。 図において、１・・・・・・現用有線伝送路上り回線、
２・・・・・・現用有線伝送路下り回線、３・・・・・
・現用無線伝送路上り回線、４・・・・・・現用無線伝
送路下り回線。 ５・・・・・・予備有線伝送路上り回線、６・・・・・
・予備有線伝送路下り回線、７・・・・・・Ａ局の切替
装置、８・・・・・・Ｂ局の切替装置FIG. 1 shows an example of a line configuration. In the figure, 1... an in-use wired transmission line,
2... Current wired transmission line down line, 3...
・Working wireless transmission uplink line, 4... Working wireless transmission downlink line. 5... Backup wired transmission on-road line, 6...
- Backup wired transmission line down line, 7... Switching device for A station, 8... Switching device for B station

Claims (1)

【特許請求の範囲】[Claims] 現用および予備伝送路相互間の切替情報伝送方式におい
て、前記現用伝送路および予備伝送路の双方に前記切替
信号を送ることにより、対向局に切替えるべき現用伝送
路の番号情報を伝送することを％徴とする伝送路切替情
報伝送方式。In a switching information transmission system between a working transmission line and a protection transmission line, by sending the switching signal to both the working transmission line and the protection transmission line, it is possible to transmit the number information of the working transmission line to be switched to the opposing station. A transmission line switching information transmission method with the following characteristics.
JP14987783A 1983-08-17 1983-08-17 System for transmitting transmission line switching information Granted JPS6041824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14987783A JPS6041824A (en) 1983-08-17 1983-08-17 System for transmitting transmission line switching information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14987783A JPS6041824A (en) 1983-08-17 1983-08-17 System for transmitting transmission line switching information

Publications (2)

Publication Number Publication Date
JPS6041824A true JPS6041824A (en) 1985-03-05
JPH035695B2 JPH035695B2 (en) 1991-01-28

Family

ID=15484588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14987783A Granted JPS6041824A (en) 1983-08-17 1983-08-17 System for transmitting transmission line switching information

Country Status (1)

Country Link
JP (1) JPS6041824A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128033A (en) * 1980-03-13 1981-10-07 Nec Corp Circuit switching system
JPS5877336A (en) * 1981-11-04 1983-05-10 Toshiba Corp Line switching system in on-line system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128033A (en) * 1980-03-13 1981-10-07 Nec Corp Circuit switching system
JPS5877336A (en) * 1981-11-04 1983-05-10 Toshiba Corp Line switching system in on-line system

Also Published As

Publication number Publication date
JPH035695B2 (en) 1991-01-28

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