Method and device in telecommunications networks

• US 6,418,219 B1
• Filed: 10/19/1998
• Issued: 07/09/2002
• Est. Priority Date: 10/20/1997
• Status: Expired due to Fees

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Kilhage, Mikael, Planelid, Lars
• Primary Examiner(s): Hong, Harry S.
• Application Number:
  US09/174,784
• Time in Patent Office: 1,359 Days
• Field of Search: 379/207, 379/211, 379/220, 379/221, 379/219, 379/272, 379/279, 379/207.12, 379/211.02, 379/220.01, 379/221.01, 379/221.13, 379/333
• US Class Current: 379/221.13
• CPC Class Codes: H04Q 2213/13097 Numbering, addressing
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13383 Hierarchy of switches, main and subexchange, e.g. satellite exchange
• CPC Class Codes: H04Q 3/58 Arrangements providing connection between main exchange and sub-exchange or satellite

Abstract

An address registration device is used in a telecommunications network in which subscribers are connected to remote subscriber stages, RSSs. The RSSs are connected to local exchanges. The address registration device includes a first table providing information about the RSS to which each subscriber is connected, and a second table providing information about the local exchange to which each RSS is connected. To move an RSS with all subscribers connected to it, from a local exchange to another, the table entry for this RSS in the second table is changed. The address registration device may be included in a supervision node monitoring the state of the local exchanges to moves an RSS from one local exchange to another automatically when needed.

Claims

1. An address registration means for use in a telecommunications network in which subscribers are connected to remote subscriber stages, said remote subscriber stages being connected to local exchanges, the address registration means comprising:

a first table providing information for subscribers identifying which of the remote subscriber stages each subscriber is connected to, and

a second table providing information identifying which of the local exchanges each of the remote subscriber stages is connected to, said address registration means being adapted to move a connection between at least one of the remote subscriber stages and a first local exchange to a second local exchange by updating a respective entry in the second table for the at least one of the remote subscriber stages to identify the connection to the second local exchange, wherein all subscribers connected to the first local exchange via the at least one remote subscriber stage are connected to the second local exchange.

2. A supervision node in a telecommunications network connected to at least one local exchange, the at least one local exchange being further connected to at least one remote subscriber stage having at least one subscriber connected to it, said supervision node for receiving information from the at least one local exchange about the state of the local exchange, the supervision node comprising an address registration means, comprising:

a first table providing information for the at least one subscriber identifying the at least one remote subscriber stage to which the at least one subscriber is connected, and

a second table providing information identifying the at least one local exchange to which the at least one remote subscriber stage is connected, wherein said supervision node is adapted to move a connection between the at least one remote subscriber stage and a failed local exchange to another local exchange if the at least one local exchange to which the at least one remote subscriber stage is connected fails.

3. A supervision node in a telecommunications network connected to at least one local exchange, the at least one local exchange being further connected to at least one remote subscriber stage through a selector, said at least one remote subscriber stage being further connected to at least one subscriber, said supervision node for receiving information from the at least one local exchange about the state of the local exchange, and comprising:

an address registration means, comprising

a first table providing information for the at least one subscriber identifying the at least one remote subscriber stage to which the at least one subscriber is connected,

a second table providing information identifying the at least one local exchange to which the at least one remote subscriber stage is connected, wherein if a first local exchange to which the at least one remote subscriber stage is connected fails, the supervision node moves a connection between the at least one remote subscriber stage and the first local exchange to a second local exchange; and

instructs the selector to change the physical connection of the at least one remote subscriber stage to said second local exchange.

4. A method in a telecommunications network in which subscribers are connected to remote subscriber stages that are in turn connected to local exchanges, said method comprising the steps of:

providing a first table holding information for subscribers connected identifying which of the remote subscriber stages each subscriber is connected to,

providing a second table holding information identifying which of the local exchanges each of the remote subscriber stages is connected to,

moving a connection between one of the remote subscriber stages and a first local exchange to another local exchange, and

changing a table entry in one of the tables based on the step of moving a connection to another local exchange.

5. The method according to claim 4, wherein an entry of the local exchange in the second table corresponding to the one of the remote subscriber stages moved is changed from the first local exchange to the another local exchange.

6. The method according to claim 4, wherein the table entry is changed automatically at a predetermined time.

7. The method according to claim 4, further comprising:

providing a supervision node in the network, supervising the state of at least one local exchange in the network, and

changing a table entry specifying a remote subscriber stage connection to a local exchange automatically if the local exchange to which the remote subscriber stage is connected fails.

8. A method for setting up a connection in a telecommunications network in which subscribers are connected to remote subscriber stations that are in turn connected to local exchanges, said method comprising the steps of:

providing a first table holding information for subscribers identifying which of the remote subscriber stages each subscriber is connected to,

providing a second table holding information identifying which of the local exchanges each of the remote subscriber stages is connected to, and

when a calling subscriber in the network dials a number located a remote subscriber stage to make a call, performing the steps of

looking up the number in the first table to identify a remote subscriber stage to which the call should be directed,

finding a corresponding local exchange to which the identified remote subscriber stage is connected in the second table, and

setting up the call between said calling subscriber and the called number through the local exchange and the identified remote subscriber stage.