US20030119481A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roaming arrangement
Assignee: Nokia Technologies Oy
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Filing: 2002-10-24
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Granted: —
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Expires: 2022-10-24
Abstract
Abstract The invention relates to a method of arranging roaming in a telecommunications system comprising a local network, at least one public land mobile network, and a terminal equipment. In the telecommunications system, public land mobile network identifiers and network element identifiers linked therewith are defined. These public land mobile network identifiers and the network element identifiers linked therewith are transmitted to the terminal equipment. The terminal equipment selects a public land mobile network by means of a comparison of the received public land mobile network identifiers and public land mobile network identifiers stored in the terminal equipment. Access is arranged for the terminal equipment via the local network to the network element determined by the network element identifier linked with the identifier of the selected public land mobile network.
Inventors
- 👤 Henry Haverinen
- 👤 Kalle Ahmavaara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:18
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/02; H04W8/06; H04W8/065; H04W12/00; H04W12/04; H04W12/043; H04W12/0431; H04W8/26
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
152 words
1 . A method of arranging roaming in a telecommunications system comprising at least one wireless local network, at least one public land mobile network, and at least one wireless terminal equipment comprising means for setting up a data transmission connection at least with the local network, the method comprising: determining, in the telecommunications system, public land mobile network identifiers and network element identifiers linked with said public land mobile network identifiers, transmitting said public land mobile network identifiers and the network element identifiers linked therewith to the terminal equipment, selecting a public land mobile network by means of a comparison of said received public land mobile network identifiers and public land mobile network identifiers contained in the terminal equipment, and providing the terminal equipment with access via the local network to the network element determined by the network element identifier linked with the identifier of the selected public land mobile network.
Claim 2
Dependent Claim
152 words
1 . A method of arranging roaming in a telecommunications system comprising at least one wireless local network, at least one public land mobile network, and at least one wireless terminal equipment comprising means for setting up a data transmission connection at least with the local network, the method comprising: determining, in the telecommunications system, public land mobile network identifiers and network element identifiers linked with said public land mobile network identifiers, transmitting said public land mobile network identifiers and the network element identifiers linked therewith to the terminal equipment, selecting a public land mobile network by means of a comparison of said received public land mobile network identifiers and public land mobile network identifiers contained in the terminal equipment, and providing the terminal equipment with access via the local network to the network element determined by the network element identifier linked with the identifier of the selected public land mobile network.
Claim 3
Dependent Claim
77 words
2 . The method of claim 1 , wherein said public land mobile network identifiers and the network element identifiers linked with said public land mobile network identifiers are stored in the local network, and said public land mobile network identifiers and the network element identifiers linked with said public land mobile network identifiers are transmitted from the local network to the terminal equipment after the terminal equipment has set up a connection to the local network.
Claim 4
Dependent Claim
44 words
3 . The method of claim 2 , wherein said public land mobile network identifiers and the network element identifiers linked with said public land mobile network identifiers are transmitted from the local network in response to a request received from the terminal equipment.
Claim 5
Dependent Claim
76 words
4 . The method of claim 1 , wherein said network element of the public I and mobile network is an authentication server, the method further comprising: carrying out the authentication of the terminal equipment by an authentication server defined by the network element identifier linked with the identifier of the selected public land mobile network, and allowing provision of data transmission services in the local network in response to successful authentication of the terminal equipment.
Claim 6
Dependent Claim
87 words
5 . The method of claim 4 , wherein the public land mobile network is a UMTS network, and the terminal equipment comprises a universal subscriber identity module (USIM), which stores algorithms required for calculating an authentication response, and a subscriber identifier and a secret key, and authentication is performed by the authentication server by comparing the authentication response (RES) calculated in the USIM of the terminal equipment to an expected authentication response (XRES) received from an authentication centre of the subscriber's home public land mobile network.
Claim 7
Dependent Claim
41 words
6 . The method of claim 4 , further comprising forwarding charging data about the telecommunications services used by the terminal equipment to the charging system of the public land mobile network in response to successful authentication of the terminal equipment.
Claim 8
Dependent Claim
76 words
7 . The method of claim 1 , wherein said network element of the public land mobile network is an authentication server, the method further comprising: performing authentication of the terminal equipment by an authentication server defined by the network element identifier linked with the identifier of the selected public land mobile network, and allowing provision of data transmission services in the selected public land mobile network in response to successful authentication of the terminal equipment.
Claim 9
Dependent Claim
87 words
8 . The method of claim 7 , wherein the public land mobile network is a UMTS network, and the terminal equipment comprises a universal subscriber identity module (USIM), which stores algorithms required for calculating an authentication response, and a subscriber identifier and a secret key, and authentication is performed by the authentication server by comparing the authentication response (RES) calculated in the USIM of the terminal equipment to an expected authentication response (XRES) received from an authentication centre of the subscriber's home public land mobile network.
Claim 10
Dependent Claim
41 words
9 . The method of claim 7 , further comprising forwarding charging data about the telecommunications services used by the terminal equipment to the charging system of the public land mobile network in response to successful authentication of the terminal equipment.
Claim 11
Dependent Claim
73 words
10 . The method of claim 1 , wherein data transmission between the local network and the public land mobile network is based on the IP, and data between the terminal equipment and the network element of the selected public land mobile network is transmitted by means of messages whose network access identifiers (NAI) comprise the domain name of the authentication server of the selected public land mobile network as a realm section.
Claim 12
Dependent Claim
90 words
11 . The method of claim 1 , wherein at least one list comprising the public land mobile network identifiers is stored in order of priority in the subscriber identity module contained in the terminal equipment, the identifiers on the list are compared in the terminal equipment to the public land mobile network identifiers received from the local network in order of priority, and a public land mobile network the identifier of which is also found from the public land mobile network identifiers received from the local network is selected.
Claim 13
Dependent Claim
169 words
12 . The telecommunications system comprising at least one local network, at least one public land mobile network, and at least one wireless terminal equipment configured to set up a data transmission connection at least with the local network, wherein public land mobile network identifiers and network element identifiers linked with said public land mobile network identifiers are configured to be determined in the telecommunications system, said public land mobile network identifiers and the network element identifiers linked therewith are configured to be transmitted to the terminal equipment in the telecommunications system, the terminal equipment is configured to select a public land mobile network by means of a comparison of said received public land mobile network identifiers and the public land mobile network identifiers contained in the terminal equipment, and the terminal equipment is configured to set up a connection via the local network to the network element determined by the network element identifier linked with the identifier of the public land mobile network selected by the terminal equipment.
Claim 14
Dependent Claim
169 words
12 . The telecommunications system comprising at least one local network, at least one public land mobile network, and at least one wireless terminal equipment configured to set up a data transmission connection at least with the local network, wherein public land mobile network identifiers and network element identifiers linked with said public land mobile network identifiers are configured to be determined in the telecommunications system, said public land mobile network identifiers and the network element identifiers linked therewith are configured to be transmitted to the terminal equipment in the telecommunications system, the terminal equipment is configured to select a public land mobile network by means of a comparison of said received public land mobile network identifiers and the public land mobile network identifiers contained in the terminal equipment, and the terminal equipment is configured to set up a connection via the local network to the network element determined by the network element identifier linked with the identifier of the public land mobile network selected by the terminal equipment.
Claim 15
Dependent Claim
79 words
13 . The telecommunications system of claim 12 , wherein the local network is configured to store said public land mobile network identifiers and the network element identifiers linked with said public land mobile network identifiers, and the local network is configured to transmit said public land mobile network identifiers and the network element identifiers linked with said public land mobile network identifiers to the terminal equipment after the equipment has set up a connection to the local network.
Claim 16
Dependent Claim
81 words
14 . The telecommunications system of claim 13 , wherein the terminal equipment is configured to select a network by means of the public land mobile network identifiers contained in the subscriber identification module located in the terminal equipment, and said network element is an authentication server configured to perform authentication of the terminal equipment by comparing an authentication response calculated by the subscriber identification module of the terminal equipment to an authentication response calculated in the public land mobile network.
Claim 17
Dependent Claim
81 words
15 . The telecommunications system of claim 12 , wherein the terminal equipment is configured to select a network by means of the public land mobile network identifiers contained in the subscriber identification module located in the terminal equipment, and said network element is an authentication server configured to perform authentication of the terminal equipment by comparing an authentication response calculated by the subscriber identification module of the terminal equipment to an authentication response calculated in the public land mobile network.
Claim 18
Dependent Claim
117 words
16 . A wireless terminal equipment configured to set up a data transmission connection at least with a wireless local network, wherein the terminal equipment is configured to receive public land mobile network identifiers and network element identifiers linked therewith, the terminal equipment is configured to select a public land mobile network on the basis of a comparison of said received public land mobile network identifiers and the public land mobile network identifiers contained in the terminal equipment, the terminal equipment is configured to set up a connection via the local network to an authentication server defined by the network element identifier linked with the identifier of the public land mobile network selected by the terminal equipment.
Claim 19
Dependent Claim
117 words
16 . A wireless terminal equipment configured to set up a data transmission connection at least with a wireless local network, wherein the terminal equipment is configured to receive public land mobile network identifiers and network element identifiers linked therewith, the terminal equipment is configured to select a public land mobile network on the basis of a comparison of said received public land mobile network identifiers and the public land mobile network identifiers contained in the terminal equipment, the terminal equipment is configured to set up a connection via the local network to an authentication server defined by the network element identifier linked with the identifier of the public land mobile network selected by the terminal equipment.
Claim 20
Dependent Claim
90 words
17 . The terminal equipment of claim 16 , wherein the terminal equipment comprises a subscriber identification module containing subscriber data required for using services of the public land mobile network, the terminal equipment is configured to select a network on the basis of the public land mobile network identifiers contained in the subscriber identification module of the terminal equipment, the subscriber identification module is configured to form an authentication response used in the authentication, and the terminal equipment is configured to transmit the authentication response to the network element.
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