US 11,115,878 B2Granted

Method for changing mobile network

AssigneeOrange

InventorsJosé Doree, Jean-Claude Le Rouzic

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Abstract

A method for changing mobile networks is described. The method may include detecting a need to switch a communication in which a terminal is participating, from a first mobile network to a second mobile network connected to the same IP network; transmission of the IMSI identifier of the terminal, by a first management center of the first mobile network to a second management center of the second mobile network; sending the IMSI identifier to the core of the IP network from the second management center; receiving a request containing the IMSI identifier by an access transfer control entity; and identifying the contact address of the terminal using the IMSI identifier. A recording server in charge of the terminal has previously obtained the IMSI identifier and sent it to the access transfer control entity.

Claims12

Dependent claims

A method of switching between mobile networks, the method comprising:

receiving, by a registration server of an Internet Protocol (IP) network in charge of a terminal, a registration request sent by the terminal to register with the IP network, and obtaining an International Mobile Subscriber Identity (IMSI) identifier of the terminal registering with the IP network,
inserting, by the registration server, the IMSI identifier in a response to the registration request or in the registration request, and forward therein the IMSI identifier to an access transfer control entity of the IP network,
after detection of a need to switch a communication in which the terminal participates from a first mobile network connected to the IP network to a second mobile network connected to the same IP network, transmission by a first management center belonging to the first mobile network to a second management center belonging to the second mobile network of the IMSI identifier of the terminal,
sending, by the second management center, the IMSI identifier to the IP network,
receiving, by the access transfer control entity, a request for change of mobile network containing the IMSI identifier, and
identifying, by the access transfer control entity, a contact address of the terminal by means of the IMSI identifier.

3 more elements

A registration server in an IP (Internet Protocol) network, the registration server being configured to:

receive a registration request to register with the IP network sent by a terminal under the charge of the registration server,
obtain an International Mobile Subscriber Identity (IMSI) identifier of the terminal registering with the IP network,
insert the IMSI identifier in a response to the registration request or in the registration request, and forward therein the IMSI identifier to an access transfer control entity of the IP network.

Dependencies are inferred from the claim text.

Facts

Application: 16/486,786Filed 20 Feb 2018
Priority: FR 175132920 Feb 2017
Published: US 2019/0364466 A128 Nov 2019
Granted: 7 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 65/1083
Session management: in-session procedures
H04L 65/1016
Architectures or entities: iP multimedia subsystem [IMS]
H04L 65/1095
In-session procedures: inter-network session transfer or sharing
H04L 67/146
Session management: markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding

Family

US 2019/0364466 A1Pre-grant publication · published 28 Nov 2019
US 11,115,878 B2This patent

From the US filing history. Foreign family members aren’t listed.

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