Soft Changing of Mobile Communication System
First Claim
1. A subscriber identity changing arrangement for at least one mobile communication system, said arrangement comprising a processor and memory, said memory containing computer instructions executable by said processor whereby said subscriber identity changing arrangement is operative to:
- initiate the sending of an instruction to a mobile terminal, via a first mobile communication system to which the mobile terminal is attached, to change subscriber identity from a first subscriber identity used in the first mobile communication system to a second subscriber identity for use in a second mobile communication system, andinitiate, after obtaining knowledge of the mobile terminal having attached to the second mobile communication system based on the second subscriber identity, a detachment procedure in the first mobile communication system in relation to the first subscriber identity.
1 Assignment
0 Petitions
Accused Products
Abstract
A subscriber identity is changed for a mobile terminal (10) through the initiation of a sending of an instruction to the mobile terminal (10), via a first mobile communication system (18, 30) to which the mobile terminal is attached, to change subscriber identity from a first subscriber identity (IMSI1) used in the first mobile communication system to a second subscriber identity (IMSI2) for use in a second mobile communication system, and the initiation, after obtaining knowledge of the mobile terminal having attached to the second mobile communication system based on the second subscriber identity, a detachment procedure in the first mobile communication system in relation to the first subscriber identity. The mobile terminal (10) receives the instruction to change, attaches to the second mobile communication system based on the second subscriber identity and detach from the first mobile communication system after having attached to the second mobile communication system.
-
Citations
31 Claims
-
1. A subscriber identity changing arrangement for at least one mobile communication system, said arrangement comprising a processor and memory, said memory containing computer instructions executable by said processor whereby said subscriber identity changing arrangement is operative to:
-
initiate the sending of an instruction to a mobile terminal, via a first mobile communication system to which the mobile terminal is attached, to change subscriber identity from a first subscriber identity used in the first mobile communication system to a second subscriber identity for use in a second mobile communication system, and initiate, after obtaining knowledge of the mobile terminal having attached to the second mobile communication system based on the second subscriber identity, a detachment procedure in the first mobile communication system in relation to the first subscriber identity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for changing mobile communication system a mobile terminal is to communicate with, the method being performed in a subscriber identity changing arrangement and comprising:
-
initiating the sending of an instruction to the mobile terminal, via a first mobile communication system to which the mobile terminal is attached, to change subscriber identity from a first subscriber identity used in the first mobile communication system to a second subscriber identity for use in a second mobile communication system, and initiate, after obtaining knowledge of the mobile terminal having attached to the second mobile communication system based on the second subscriber identity, a detachment procedure in the first mobile communication system in relation to the first subscriber identity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A mobile terminal for communication with at least one mobile communication system, said mobile terminal comprising a radio circuit for communicating with a first and a second mobile communication system and configured to:
-
receive via a first mobile communication system to which the mobile terminal is attached, an instruction from a subscriber identity changing arrangement to change subscriber identity from a first subscriber identity used in the first mobile communication system to a second subscriber identity for use in the second mobile communication system, attach to the second mobile communication system based on the second subscriber identity, and detach from the first mobile communication system after having attached to the second mobile communication system. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
-
25. A method of changing communication from a first mobile communication system to a second mobile communication system, the method being performed in a mobile terminal and comprising
receiving, via the first mobile communication system to which the mobile terminal is attached, an instruction from a subscriber identity changing arrangement to change subscriber identity from a first subscriber identity used in the first mobile communication system to a second subscriber identity for use in a second mobile communication system, attaching to the second mobile communication system based on the second subscriber identity, and detaching from the first mobile communication system after having attached to the second mobile communication system.
Specification