US 11,540,246 B2Granted

Method and device for selecting public land mobile network (PLMN) in wireless communication system

AssigneeLG Electronics Inc.

InventorsSungduck Chun, Laeyoung Kim, Hyunsook Kim

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Abstract

According to an embodiment of the present invention, a method for selecting a public land mobile network (PLMN) by a user equipment (UE) in a wireless communication system comprises: in a manual network selection mode, displaying one or more first PLMN items corresponding to one or more first PLMNs on a display of the UE; when an input for a second PLMN item among the one or more PLMN items is received, controlling a communication module of the UE to attempt to register the UE on a second PLMN corresponding to the second PLMN item; when the registration on the second PLMN fails, providing access to restricted local operator service (RLOS), and displaying, on the display, one or more third PLMN items corresponding to one or more third PLMNs included in an RLOS PLMN list configured in a universal subscriber identity module (USIM) of the UE; and when an input for a fourth PLMN item among the one or more third PLMN items is received, controlling the communication module to initiate registration for access to the RLOS of a fourth PLMN corresponding to the fourth PLMN item, whereby it is possible to use not only excellent but also highly secure RLOS.

Claims20

Dependent claims

A method for selecting, by a user equipment (UE), a public land mobile network (PLMN) in a wireless communication system, the method comprising:

in a manual network selection mode, displaying at least one first PLMN item respectively corresponding to at least one first PLMN on a display of the UE;
based on an input for a second PLMN item of the at least one first PLMN item being received, controlling a communication module of the UE to attempt to a registration on a second PLMN corresponding to the second PLMN item;
based on the registration on the second PLMN failing, displaying, on the display, at least one third PLMN item that provides attach for a restricted local operator service (RLOS) and respectively corresponds to at least one third PLMN included in an RLOS PLMN list configured to a universal subscriber identity module (USIM) of the UE;
and
based on an input for at least one fourth PLMN item of the at least one third PLMN item being received, controlling the communication module to initiate a registration for attach for at least one RLOS of at least one fourth PLMN corresponding to the at least one fourth PLMN item,
wherein the at least one third PLMN item is displayed based on the at least one third PLMN being found by the UE,
wherein the registration for attach for the at least one RLOS of the at least one fourth PLMN is initiated sequentially in order of at least one signal strengths measured between each of the at least one fourth PLMN and the UE.

4 more elements

A user equipment (UE) selecting a public land mobile network (PLMN) in a wireless communication system, the UE comprising:

a communication module;
a display;
at least one processor;
and
at least one computer memory operationally connected to the at least one processor,
wherein the at least one computer memory is configured to store instructions that allow the at least one processor to:
in a manual network selection mode, display at least one first PLMN item respectively corresponding to at least one first PLMN on the display;
based on an input for a second PLMN item of the at least one first PLMN item being received, control the communication module and attempt to a registration on a second PLMN corresponding to the second PLMN item;
based on the registration on the second PLMN failing, display, on the display, at least one third PLMN item, that provides attach for a restricted local operator service (RLOS) and respectively corresponds to at least one third PLMN included in an RLOS PLMN list configured to a universal subscriber identity module (USIM) of the UE;
and
based on an input for at least one fourth PLMN item of the at least one third PLMN item being received, control the communication module and initiate a registration for attach for at least one RLOS of at least one fourth PLMN corresponding to the at least one fourth PLMN item,
wherein the at least one third PLMN item is displayed based on the at least one third PLMN being found by the UE,
wherein the registration for attach for the at least one RLOS of the at least one fourth PLMN is initiated sequentially in order of at least one signal strengths measured between each of the at least one fourth PLMN and the UE.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/272,630Filed 2 Sep 2019 · us provisional application
Priority: KR 10-2019-00001802 Jan 2019
Published: US 2021/0352608 A111 Nov 2021
Granted: 27 Dec 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G06F 3/0488
Using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of…:…
H04W 60/04
Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration: using triggered events
H04M 1/724
Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection: user interfaces…
H04W 48/18
Access restriction ; Network selection; Access point selection: selecting a network or a communication service