| US 7,577,430 B2 | ||
| Method for assigning a mobile communications terminal to a core network node | ||
| Frank Mademann, Berlin (Germany) | ||
| Assigned to Nokia Siemens Networks GmbH & Co. KG, Munich (Germany) | ||
| Appl. No. 10/473,257 PCT Filed Mar. 21, 2002, PCT No. PCT/DE02/01077 § 371(c)(1), (2), (4) Date Sep. 29, 2003, PCT Pub. No. WO02/080603, PCT Pub. Date Oct. 10, 2002. |
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| Claims priority of application No. 101 17 269 (DE), filed on Mar. 30, 2001. | ||
| Prior Publication US 2004/0097216 A1, May 20, 2004 | ||
| Int. Cl. H04W 4/00 (2009.01) | ||
| U.S. Cl. 455—432.1 [455/435.1; 455/445; 455/410; 370/328; 370/338; 370/352] | 19 Claims |
| 1. A method for assigning a mobile communications terminal having a temporary subscriber identity and/or an associated routing
parameter to a core network node of a core network provider when changing from a first core network area to a second core
network area, the mobile communications terminal having a corresponding radio system that includes a functional unit, comprising:
coding of a maximum of, in each case, one core network node of the respective core network area in the routing parameter and/or
the temporary subscriber identity of the mobile communications terminal;
assigning, by the functional unit, the mobile communications terminal to a core network node of the second core network area,
first to the, at most, one core network node of the second core network area which is coded in the routing parameter and/or
the temporary subscriber identity, or second to an alternative core network node if, in the second core network area, there
is no core network node coded in the routing parameter and/or the temporary subscriber identity, wherein assignment of the
mobile communications terminal to the alternative core network is made when the mobile communications terminal is not from
a home network of the core network provider.
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