ES2020613A6 - Signalling and call set-up process in communications systems with ring topology - Google Patents
Signalling and call set-up process in communications systems with ring topologyInfo
- Publication number
- ES2020613A6 ES2020613A6 ES8904435A ES8904435A ES2020613A6 ES 2020613 A6 ES2020613 A6 ES 2020613A6 ES 8904435 A ES8904435 A ES 8904435A ES 8904435 A ES8904435 A ES 8904435A ES 2020613 A6 ES2020613 A6 ES 2020613A6
- Authority
- ES
- Spain
- Prior art keywords
- signalling
- unit
- call set
- communications systems
- ring topology
- 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.)
- Expired - Lifetime
Links
Abstract
Signalling and call set-up process in communications systems with ring topology. For use in communications systems with a ring topology 1 which use a common channel for signalling and which use a protocol by means of which, at any moment, there is one unit of the ring which is operating as master unit. The objective is to minimise the interchange of information between the units connected to the ring during the call set-up process. Each unit, during its time interval, sends out a complete signalling message which the other units receive, by which they know the status of the rest of the units and of the communications channels of the system. When a user asks for communication to be established with another unit, the originating unit determines whether it is possible to establish the communication, such that, if so, it sends a single message to the destination unit which answers with another single message, when the master unit assigns it the signalling channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8904435A ES2020613A6 (en) | 1989-12-29 | 1989-12-29 | Signalling and call set-up process in communications systems with ring topology |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8904435A ES2020613A6 (en) | 1989-12-29 | 1989-12-29 | Signalling and call set-up process in communications systems with ring topology |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2020613A6 true ES2020613A6 (en) | 1991-08-16 |
Family
ID=8265264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8904435A Expired - Lifetime ES2020613A6 (en) | 1989-12-29 | 1989-12-29 | Signalling and call set-up process in communications systems with ring topology |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2020613A6 (en) |
-
1989
- 1989-12-29 ES ES8904435A patent/ES2020613A6/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2009-12-29 |