AU579580B2 - A method and apparatus for monitoring digital radio relay links - Google Patents
A method and apparatus for monitoring digital radio relay linksInfo
- Publication number
- AU579580B2 AU579580B2 AU31245/84A AU3124584A AU579580B2 AU 579580 B2 AU579580 B2 AU 579580B2 AU 31245/84 A AU31245/84 A AU 31245/84A AU 3124584 A AU3124584 A AU 3124584A AU 579580 B2 AU579580 B2 AU 579580B2
- Authority
- AU
- Australia
- Prior art keywords
- clock
- super
- mux
- multiplexer
- int
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Radio Relay Systems (AREA)
Abstract
1. An arrangement for monitoring digital radio links comprising two end stations and at least one intermediate station (Z), arranged between these end stations, with a receiving section and a transmitting section, by means of additional bits whose arrangement is defined by a super-frame, and where, when the failure of a connection is established in an intermediate station, the super-frame is re-formed, all the information bits are set at the logic value 1 and the information bits are scrambled, and the failure of the connection is reported to the following intermediate stations by means of a service bit in the re-formed super-frame, characterised in that in the base-band preparation unit (BSZ) of the transmitting section of the intermediate station, which in the event of a fault assumes the function of a new end station, in the signal path between an input-end interface assembly (INT) and an output-end difference coder (COD) are interposed a multiplexer (MUX) for super-frame formation and a scrambler (SCR) which are connected to a clock central control (TZ) for the generation of a control clock signal for the super-frame formation, that the clock central control (TZ) is connected to a clock oscillator (OSZ) and the interface assembly (INT) and also to the coder (COD), that multiplexer (MUX) and scrambler (SCR) and clock central (TZ) possess a control input (S1M, S1T) for a control signal which occurs in the event of a failure, that an elastic store (ES) is interposed between the interface assembly (INT) and the multiplexer (MUX), which store controls a voltage-controlled oscillator (VCO) connected to the clock central control (TZ), and that multiplexer (MUX) and scrambler (SCR), clock central control (T2) and interface assembly (INT) possess a further control input (S2M, S2T, S2I) via which a further control signal switches over the arrangement from the intermediate station operation to end station operation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833327517 DE3327517A1 (en) | 1983-07-29 | 1983-07-29 | METHOD AND ARRANGEMENT FOR MONITORING DIGITAL RADIO COMMUNICATIONS |
DE3327517 | 1983-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3124584A AU3124584A (en) | 1985-01-31 |
AU579580B2 true AU579580B2 (en) | 1988-12-01 |
Family
ID=6205315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU31245/84A Ceased AU579580B2 (en) | 1983-07-29 | 1984-07-27 | A method and apparatus for monitoring digital radio relay links |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0133278B1 (en) |
AT (1) | ATE37640T1 (en) |
AU (1) | AU579580B2 (en) |
DE (2) | DE3327517A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU593888B2 (en) * | 1986-03-10 | 1990-02-22 | Siemens Aktiengesellschaft | Apparatus for inserting locally derived analogue service signals into digital service channels in a radio relay station |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3322851A1 (en) * | 1983-06-24 | 1985-01-03 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND ARRANGEMENT FOR TRANSMITTING DIGITAL AUXILIARY SIGNALS IN DIGITAL DIRECTIONAL RADIO SYSTEMS |
US4653070A (en) * | 1985-09-11 | 1987-03-24 | Nec Corporation | Channel monitoring circuit for use in a repeater station over radio digital transmission |
US5212475A (en) * | 1988-05-18 | 1993-05-18 | Siemens Aktiengesellschaft | Method for generating an alarm inhibit signal |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301538A (en) * | 1978-11-02 | 1981-11-17 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Remote surveillance and fault location unit for pulse regenerator repeaters |
AU2976584A (en) * | 1983-06-24 | 1985-01-03 | Siemens Aktiengesellschaft | Method and apparatus for the transmission of digital auxiliary signals in digital radio relay systems |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1049586B (en) * | 1974-09-11 | 1981-02-10 | Siemens Ag | SYSTEM FOR TRANSMITTING INFORMATION |
DE2647716B1 (en) * | 1976-10-21 | 1978-01-05 | Siemens Ag | Path section monitor for PCM TDMA system - replaces first frame identification word with second word during alarm indication |
DE2830681C2 (en) * | 1978-07-12 | 1980-08-14 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Method for preventing simulated calls in a switching facility to which start-stop channels are connected via a time division multiplex system |
US4232197A (en) * | 1978-08-25 | 1980-11-04 | Bell Telephone Laboratories, Incorporated | Processor for a TDMA burst modem |
DE3004767B1 (en) * | 1980-02-08 | 1981-05-21 | Siemens AG, 1000 Berlin und 8000 München | Method for combined monitoring and fault location in transmission links for digital signals and arrangement for carrying out the method |
DE3011324C2 (en) * | 1980-03-24 | 1981-12-10 | Siemens AG, 1000 Berlin und 8000 München | Method and arrangement for generating a fault location signal for a digital transmission system |
DE3015274C2 (en) * | 1980-04-21 | 1982-01-14 | Siemens AG, 1000 Berlin und 8000 München | Method and arrangement for evaluating a fault location signal for a digital transmission system |
-
1983
- 1983-07-29 DE DE19833327517 patent/DE3327517A1/en not_active Withdrawn
-
1984
- 1984-07-24 AT AT84108752T patent/ATE37640T1/en not_active IP Right Cessation
- 1984-07-24 EP EP84108752A patent/EP0133278B1/en not_active Expired
- 1984-07-24 DE DE8484108752T patent/DE3474393D1/en not_active Expired
- 1984-07-27 AU AU31245/84A patent/AU579580B2/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301538A (en) * | 1978-11-02 | 1981-11-17 | Compagnie Industrielle Des Telecommunications Cit-Alcatel | Remote surveillance and fault location unit for pulse regenerator repeaters |
AU2976584A (en) * | 1983-06-24 | 1985-01-03 | Siemens Aktiengesellschaft | Method and apparatus for the transmission of digital auxiliary signals in digital radio relay systems |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU593888B2 (en) * | 1986-03-10 | 1990-02-22 | Siemens Aktiengesellschaft | Apparatus for inserting locally derived analogue service signals into digital service channels in a radio relay station |
Also Published As
Publication number | Publication date |
---|---|
EP0133278A2 (en) | 1985-02-20 |
AU3124584A (en) | 1985-01-31 |
DE3327517A1 (en) | 1985-02-07 |
ATE37640T1 (en) | 1988-10-15 |
EP0133278B1 (en) | 1988-09-28 |
DE3474393D1 (en) | 1988-11-03 |
EP0133278A3 (en) | 1985-11-13 |
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