CA2440121A1 - Flexible user distribution between user's serving entities - Google Patents

Flexible user distribution between user's serving entities Download PDF

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Publication number
CA2440121A1
CA2440121A1 CA002440121A CA2440121A CA2440121A1 CA 2440121 A1 CA2440121 A1 CA 2440121A1 CA 002440121 A CA002440121 A CA 002440121A CA 2440121 A CA2440121 A CA 2440121A CA 2440121 A1 CA2440121 A1 CA 2440121A1
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Canada
Prior art keywords
uds
user
server
service
telecommunications system
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Granted
Application number
CA002440121A
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French (fr)
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CA2440121C (en
Inventor
Juan Antonio Sanchez Herrero
Isabel Plata Andres
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Telefonaktiebolaget LM Ericsson AB
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Individual
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Publication of CA2440121A1 publication Critical patent/CA2440121A1/en
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Publication of CA2440121C publication Critical patent/CA2440121C/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/005—Personal communication services, e.g. provisions for portability of subscriber numbers

Abstract

A user Distribution Server (UDS) is provided in a network having multiple servers and users whoare each identified by a plurality of different use identifiers. The UDS is located accessible to an entity disposed to request user infomraiton and the USD respons to a query pertaining to a specific use r by redirecting the query to the approprate server or serving entity. The USD implemnts a secondary database with user and server identifiers obtained fro m primary user databases assocated with, or derived from, the servers. The use of distinct primary and secondary databases simplifies data handling, since data changes and updates can be readily managed in the primary databases and then transferred to or actualized in the secondary database.

Claims (35)

1. A User Distribution Server (UDS) (10; 12) in a network resolution domain, comprising a plurality of user identifiers per subscriber basis intended for identifying a user under different service environments, said UDS arranged for determining a specific network server (14, 16; 18, 20) in charge of said user under a particular service environment, and characterized in that the UDS acts as a secondary database comprising (a) means for recovering (44) user identifiers and necessary service data from specific network servers (14, 16; 18, 20) acting as primary databases as well as from other UDS (12;
10) in the network resolution domain;

(b) storage (36) for user identifiers and necessary service data, including service indicators, per specific network server (14, 16; 18 20) and per user basis;

(c) means for receiving (40) and processing service requests from a Service Requester Node (28) or from another UDS (12;
10) in the resolution domain for a given user under a particular service environment; and (d) means for answering (42) to the Service Requester Node (28) or to another UDS (12; 10):

(d1) an identifier for addressing the specific network server in charge of said user under a particular service environment, or (d2) a list of possible network server identifiers if a redundant configuration exists, or (d3) a new user identifier with indication that another query on said new identifier in another server is necessary, and optionally indicating the reason behind.
2. The User Distribution Server (UDS) in claim 1, wherein the means a) (44) include means for informing said UDS (10) about needs for updating user identifiers and/or necessary service data at indication and from primary databases (14, 16) or another UDS (12).
3. The User Distribution Server (UDS) in claim 2, wherein the means a) (44) include means for said UDS (10) registering into and withdrawing from all network servers intended for acting as primary databases (14, 16) or another UDS (12).
4. The User Distribution Server (UDS) in claim 3, wherein the means a) (44) include means for indicating recovery preferences for recovering user identifiers and/or necessary service data for all served users, for a specific set of users, or only for a particular user.
5. The User Distribution Server (UDS) in claim 4, wherein the means a) (44) further include means for recovering user identifiers and/or necessary service data for at least on set of:

(a) identifiers of a specific type amongst a plurality of valid identifier types;

(b) identifiers used in specific domains; and (c) identifiers belonging to specific identification spaces in a domain.
6. The User Distribution Server (UDS) in claim 5, wherein data sensitive to temporary validity per specific network service include a "Time To Live" (TTL) parameter intended for determining the needs for data recovery from primary databases (24, 16; 18, 20).
7. The User Distribution Server (UDS) in claims 5, further comprising at least one protocol handler module (29) and, in case more than one protocol handler module exists, a protocol discriminator module (30), each protocol handler module in charge of a particular telecommunications protocol.
8. The User Distribution Server (UDS) in claim 7, wherein at least one "Domain Name Server (DNS)" related protocol handler module is comprised.
9. The User Distribution Server (UDS) in claim 7, wherein at least one "Diameter" related protocol handler module is comprised.
10. The User Distribution Server (UDS) in claim 7, wherein at least one "Light-Weight Directory Access Protocol (LDAP)" related protocol handler module is comprised.
11. The User Distribution Server (UDS) in claim 7, wherein at least one "Radius" related protocol handles module is comprised.
12. The User Distribution Server (UDS) in claim 7, further comprising protocol and processing means for solving the service request using an external database (38) not intended for acting as primary database or as another UDS.
13. The User Distribution Server (UDS) in claim 12, wherein said external database (38) is a number portability database.
14. A telecommunications system comprising the User Distribution Server (UDS) (10; 12) of claim 1, characterized in that relevant user identifiers in at least one of a plurality of primary databases (14; 16; 18; 20) may be submitted for updating to one specific UDS (10; 12), to a group of UDS (10, 12), or to all UDS (10-12) known at said at least one primary database.
15. The telecommunications system in claim 14, wherein at least one of a plurality of primary databases (14; 16; 18; 20) is arranged for receiving UDS recovery preferences from one specific UDS (10; 12), from a group of UDS (10, 12), or from all UDS (10-12) known at said at least one primary database, and for updating each UDS accordingly with each recovery preferences.
16. The telecommunications system in claim 15, wherein the UDS (10;
12) acts as a Subscription Locator Function (SLF).
17. The telecommunications system in claim 15, wherein at least one of a plurality of specific servers acting as primary databases (14; 16; 18; 20) is a Home Subscription Server (HSS).
18. The telecommunications system in claim 15, wherein at least one of a plurality of specific servers acting as primary databases (14; 16; 18; 20) is a Presence Server.
19. The telecommunications system in claim 25, wherein at least one of a plurality of Service Requester Nodes (28) is an Interrogating Call Status Control Function (I-CSCF).
20. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a Serving Call Status Control Function (S-GSCF).
21. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a Mobile Switching Center (MSC).
22. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a Signalling Gateway.
23. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a GPRS
Supporting Node.
24. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is an Application Server (AS) intended for multimedia related use.
25. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is an Open Service Architecture Service Capability Server.
26. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a Multimedia Messaging Server.
27. The telecommunications system in claim 15, wherein at least one of a plurality of Service Requester Nodes (28) is a CAMEL
Gateway Server.
28. The telecommunications system in claim 15, wherein at least one of a plurality of external databases (38) used for resolution is a Domain Name Server.
29. The telecommunications system in claim 15, wherein at least one of a plurality of external databases (38) used for resolution is a database system based on Light-Weight Directory Access Protocol (LDAP).
30. The telecommunications system in claim 15, wherein at least one of a plurality of external databases (38) used for resolution is a number portability database.
31. A method in a network resolution domain, wherein a plurality of user identifiers per subscriber basis are used for identifying a user under different service environments, and wherein the User Distribution Server (UDS) (10; 12) in claim 1 is disposed for determining a specific network server (14; 16; 18; 20) in charge of each user under a particular service environment, the method characterized in that it comprises the steps of:

(a) recovering (P-21, P-21, P-31, P-n1; P-00) at the UDS (10) user identifiers and necessary service data from specific network servers (14; 26; 18; 20) acting as primary databases as well as from other UDS (12) in the network resolution domain;

(b) storing at the UDS (10) user identifiers and necessary service data that include service indicators for each user per specific network server;

(c) receiving (S-20; P-00) and processing service requests from a Service Requester Node (28) or from another UDS (12) in the resolution domain for a given user under a particular service environment; and (d) answering (S-30; P-00) to the Service Requester Node,(28) or to another UDS (12):

(d1) an identifier for addressing (S-40) the specific network server (20) in charge of said user under a particular service environment, or (d2) a list of possible network server identifiers if a redundant configuration exists, or (d3) a new user identifier with indication that another query on said new identifier in another server is necessary, and optionally indicating the reason behind.
32. The method in claim 31, further including the step of informing (P-11; P-21; P-31; P-n1) to at least one UDS (10) about needs for updating user identifiers and/or necessary service data at indication and from primary databases (16; 14; 20; 18) or another UDS (12).
33. The method in claim 32, alternatively including the steps of registering (P-11; P-21; P-31; P-n1) a UDS (10) into, and withdrawing (P-11; P-21; P-31; P-n1) a UDS (10) from, all network servers (16; 14; 20; 18) intended for acting as primary databases.
34. The method in claim 33, further including the steps of indicating (P-12; P-21; P-31; P-n1) UDS recovery preferences to at least one primary database (16; 14; 20; 18) for recovering user identifiers and/or necessary service data for all served users, for a specific set of users, or only for a particular user.
35. The method in claim 34, further including the steps of receiving (P-11; P12) UDS recovery preferences from one specific UDS (10; 12), from a group of UDS (10, 12), or from all UDS (10-12) known at an at least one primary database (16), and updating each UDS from said at least one primary database accordingly with each recovery preferences.
CA2440121A 2001-03-06 2002-03-06 Flexible user distribution between user's serving entities Expired - Lifetime CA2440121C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US27375901P 2001-03-06 2001-03-06
US60/273,759 2001-03-06
US10/091,658 2002-03-04
US10/091,658 US20020147845A1 (en) 2001-03-06 2002-03-04 Flexible user distribution between user's serving entities
PCT/EP2002/002440 WO2002071674A2 (en) 2001-03-06 2002-03-06 Flexible user distribution between user's serving entitites

Publications (2)

Publication Number Publication Date
CA2440121A1 true CA2440121A1 (en) 2002-09-12
CA2440121C CA2440121C (en) 2010-11-30

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US (1) US20020147845A1 (en)
EP (1) EP1366590B1 (en)
CN (1) CN100566328C (en)
AT (1) ATE296509T1 (en)
AU (1) AU2002242719A1 (en)
CA (1) CA2440121C (en)
DE (1) DE60204289T2 (en)
WO (1) WO2002071674A2 (en)

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US20020147845A1 (en) 2002-10-10
CA2440121C (en) 2010-11-30
CN100566328C (en) 2009-12-02
WO2002071674A3 (en) 2002-11-07
EP1366590A2 (en) 2003-12-03
CN1633795A (en) 2005-06-29
AU2002242719A1 (en) 2002-09-19
DE60204289T2 (en) 2006-05-18
ATE296509T1 (en) 2005-06-15
WO2002071674A2 (en) 2002-09-12
EP1366590B1 (en) 2005-05-25

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