US 10,219,211 B2 · Method and apparatus for enabling a network selection during change in a location of a user device

Abstract

A method for enabling a network selection during change in a location of a user equipment (UE) comprises of performing an emergency camping on a first PLMN during a change in location of the UE from a first network to a second network in a power ON mode, identifying a mobile country code and a mobile network code of the first available network from a system information block (SIB) detected from the first network during the emergency camping, determine whether a registered public land mobile network (RPLMN) of the UE is same as a network area of the first available network by comparing the identified MCC and MNC with information of a PLMN database stored in the UE, and determining at least one PLMN from a plurality of priority PLMNs of the second network from the PLMN database if the RPLMN is different from the network area of the first available network.

Claims18

Dependent claims

A method of enabling a network selection during change in a location of a user equipment (UE), the method comprising:

identifying, by the UE, a mobile country code (MCC) and a mobile network code (MNC) of a first public land mobile network (PLMN) based on a system information block (SIB) received from a second network during a change in location of the UE from a first network to the second network in a power ON mode, wherein the first PLMN is predicted to be available in the second network;
comparing the identified MCC and the identified MNC with an MCC and a MNC of a second PLMN registered in a PLMN database stored in the UE;
accessing, by the UE, the second network based on the MCC and the MNC of the second PLMN if the MCC and the MNC of the second PLMN is a same as the identified MCC and the identified MNC;
and
determining, by the UE, a MCC and a MNC of a third PLMN based on a priority among a plurality of PLMNs related to the second network from the PLMN database and accessing the second network based on the MCC and the MNC of the third PLMN if the MCC and the MNC of the second PLMN is different from the identified MCC and the identified MNC.

2 more elements

A user equipment (UE) arranged for operation in a multi-network cellular environment and arranged for a network selection during change in a location of the UE, the UE comprises of:

one or more subscriber identity modules (SIMs) configured to access one or more corresponding public land mobile networks (PLMNs) in a current location;
a storage unit configured to store a PLMN database, where the PLMN database is adapted to store one or more PLMN;
and
a processor configured to:
identify a mobile country code (MCC) and a mobile network code (MNC) of a first PLMN based on a system block information (SIB) received from a second network during a change in location of the UE from a first network to the second network in a power ON mode, wherein the first PLMN is predicted to be available in the second network;
compare the identified MCC and the identified MNC with an MCC and a MNC of a second PLMN registered in a PLMN database stored in the UE;
access the second network based on the MCC and the MNC of the second PLMN, if the MCC and the MNC of the second PLMN is a same as the identified MCC and the identified MNC;
and
determine an MCC and a MNC of a third PLMN based on a priority among a plurality of PLMNs related to the second network from the PLMN database and access the second network based on the MCC and the MNC of the third PLMN if the MCC and the MNC of the second PLMN is different from the identified MCC and the identified MNC.

6 more elements

Dependencies are inferred from the claim text.

Method and apparatus for enabling a network selection during change in a location of a user device

Life of this patent

Method and apparatus for enabling a network selection during change in a location of a user device

Life of this patent

Abstract

Claims18