EP1175119A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Network selection in a mobile telecommunications system
Assignee: Nokia Oyj
•
Filing: 2001-06-29
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Granted: —
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Expires: 2021-06-29
Abstract
Abstract A mobile station such as a telephone handset (1) for a mobile radio telecommunications system, is operable in different, user selectable configurations for which radio transmissions are made with different frequencies or signal formats so that the user can roam from a home network (PLMN A) to a another network (PLMN B) which operates in a different configuration to the HPLMN. The handset (1) includes a controller (8) to cause a search to be made for transmissions corresponding to a plurality of the different configurations when a configuration for a roamed network has been selected by the user so as to enable the handset to find the HPLMN when returning to the network coverage area of the HPLMN.
Inventors
- 👤 Peter Vestergaard
- 👤 Lars Dalsgaard
- 👤 Sami Jutila
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:21
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/18; H04W88/00; H04W88/02; H04W88/06
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
73 words
A mobile station (1) for a mobile telecommunications system, which
is operable in different networks, and having a preferred network (HPLMN) for
operation, comprising a manually operable device (4) for a user to select an
individual one of said different networks, and characterised by a controller (8) to cause the mobile station to search for said preferred
network, regardless of whether the user has manually selected another one of the
networks for operation.
Claim 2
Dependent Claim
20 words
A mobile station according to claim 1 wherein the preferred network
comprises a home network (HPLMN) for the mobile station.
Claim 3
Dependent Claim
35 words
A mobile station according to claim 1 or 2 wherein the different networks
utilise radio transmissions that have different predetermined characteristics and the
mobile station is operable to search for transmissions with said different
characteristics.
Claim 4
Dependent Claim
32 words
A mobile station according to claim 3 wherein the different predetermined
characteristics for the networks comprise different frequency bands, and the mobile
station is operable to search for said different frequency bands.
Claim 5
Dependent Claim
19 words
A mobile station according to claim 4 wherein the different frequency bands
are for a common signal transmission protocol.
Claim 6
Dependent Claim
15 words
A mobile station according to claim 5 wherein the common protocol
comprises GSM and/or DCS.
Claim 7
Dependent Claim
33 words
A mobile station according to any preceding claim wherein the different
predetermined characteristics for the networks comprise different transmission
protocols, and the mobile station is operable to search for said different
transmission protocols.
Claim 8
Dependent Claim
15 words
A mobile station according to claim 7 wherein the different protocols
include GSM and UMTS.
Claim 9
Dependent Claim
39 words
A mobile station according to any preceding claim wherein the controller is
operable to cause a user discernible indication to be provided that radio
transmissions corresponding to one of said networks other than the selected
network, are being found.
Claim 10
Dependent Claim
26 words
A mobile station according to claim 9 including a visual display (5), the
controller being operable to cause said indication to be provided on the display.
Claim 11
Dependent Claim
28 words
A mobile station according to any preceding claim wherein the controller is
operable to search for transmissions corresponding to the different networks in at
least one predetermined order.
Claim 12
Dependent Claim
25 words
A mobile station according to any preceding claim including a memory (9,
12) that stores data corresponding to the different selectable networks for the user.
Claim 13
Dependent Claim
22 words
A mobile station according to claim 12 wherein the memory comprises a
removable smart card (12) with user identification information stored thereon.
Claim 14
Dependent Claim
15 words
A mobile station according to claim 13 wherein the memory comprises a SIM
card (12)
Claim 15
Dependent Claim
14 words
A mobile station according to any preceding claim comprising a mobile
telephone handset (1).
Claim 16
Dependent Claim
11 words
A mobile station according to any preceding claim, comprising a PDA.
Claim 17
Dependent Claim
18 words
A mobile station according to any preceding claim including a keypad (3, 4)
operable to select the network.
Claim 18
Independent Claim
57 words
A method of operating a mobile station for a mobile telecommunications
system, which is operable in different networks and having a preferred network for
operation and a manual control for permitting network selection, comprising
causing the mobile station to search for the preferred network irrespective of
whether another of the networks has been manually selected for operation.
Claim 19
Dependent Claim
39 words
A method according to claim 18 wherein the preferred network is a home
network for the mobile station, and including searching for the home network
irrespective of whether another of the networks has been manually selected for
operation .
Claim 20
Dependent Claim
28 words
A method according to claim 18 or 19 wherein the different networks
operate in different frequency bands, and including carrying out the search in said
different frequency bands.
Claim 21
Dependent Claim
33 words
A method according to claim 18, 19, or 20 wherein the different networks
operate according to different transmission protocols, and including carrying of the
search for network transmissions in said different transmission protocols.
Claim 22
Independent Claim
62 words
A method according to any one of claims 18 to 21 wherein the mobile
station is operable in a predetermined configuration one of the user selectable
configurations corresponding to a home network for the user, and the method
includes causing the mobile station to search for transmissions corresponding to the
home network when another of the user selectable configurations has been selected.
Claim 23
Dependent Claim
34 words
A method according to claim 19 including providing a display to the user to
indicate that the home network is available for use if transmissions in the
configuration for the home network are found.
Claim 24
Dependent Claim
16 words
A method according to claim 19 including selecting the configuration for the
home network when found.
Claim 25
Independent Claim
22 words
A method according to any one of claims 18 to 24 including searching for
the networks in at least one predetermined order.
Claim 26
Dependent Claim
65 words
A memory device for use in a mobile station for a telecommunications
system, which is operable in different networks and having a preferred network for
operation, the memory device including data corresponding to networks to be
searched and an indication of the preferred network so that a search can be carried
out for the preferred network irrespective of the network manually selected by the
user.
Claim 27
Dependent Claim
25 words
A memory device according to claim 26 wherein the data for the preferred
network corresponds to the configuration of a home network for the user.
Claim 28
Dependent Claim
19 words
A memory device according to claim 27 that comprises a smart card (12)
with user identification information stored thereon.
Claim 29
Dependent Claim
29 words
A method of programming a memory device as claimed in claim 26 including
storing data in the memory corresponding to the configuration for the home
network of the user.
References Cited (Backward Citations)
No citation records indexed.
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