US 10,219,240 B2Granted

Method and system for user equipment behavior in manual CSG selection mode

AssigneeSamsung Electronics Co., Ltd.

InventorsDandra Prasad Basavaraj, Pavan Kumar Devarayanigari, Jaya Prakash, Nitesh Pushpak Shah, Prakash Rao, Srinivas Chinthalapudi, Vijay Ganesh Surisetty

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Abstract

A method and system for enabling a User Equipment (UE) to quickly recover back to normal service on failure of registration attempt to a selected Closed Subscriber Group (CSG) cell or loss of coverage of the selected CSG cell is provided. The method provides a UE behavior during manual CSG selection mode when the selected CSG cell is associated with a different Public Land Mobile Network (PLMN) than the Registered PLMN (RPLMN) of the UE. The method also defines the UE actions to handle a user request to change a current Public Land Mobile Network (PLMN) selection mode and handle expiry of a Home PLMN (HPLMN) timer in the UE, when the UE is attached to the selected CSG cell in the manual CSG selection mode.

Claims8

Dependent claims

A method for operating a user equipment (UE) in a manual closed subscriber group (CSG) selection mode in a wireless network, the method comprising:

receiving a first user input for manually selecting a CSG cell associated with a first public land mobile network (PLMN) different from a registered PLMN (RPLMN) of the UE;
camping on the CSG cell associated with the first PLMN, after storing a PLMN selection mode corresponding to a duplicate value of the RPLMN in response to the selection;
receiving a second user input for manually selecting a CSG cell associated with a second PLMN different from the first PLMN during the UE camping on the CSG cell associated with the first PLMN in a manual PLMN selection mode;
and
camping on the RPLMN or equivalent PLMN (EPLMN) based on the stored PLMN selection mode corresponding to the duplicate value of the RPLMN in response to a failure of a registration attempt to the selected CSG cell associated with the second PLMN,
wherein the PLMN selection mode corresponding to the duplicate value of the RPLMN is an automatic PLMN selection mode.

3 more elements

A user equipment (UE) supporting a manual closed subscriber group (CSG) selection in a wireless network, the UE comprising:

at least one processor configured to:
receive a first user input for manually selecting a CSG cell associated with a first public land mobile network (PLMN) different from a registered PLMN (RPLMN) of the UE,
camp on the CSG cell associated with the first PLMN, after storing a PLMN selection mode corresponding to a duplicate value of the RPLMN in response to the selection,
receive a second user input for manually selecting a CSG cell CSG cell associated with a second PLMN different from the first PLMN during the UE camping on the CSG cell associated with the first PLMN in a manual PLMN selection mode, and
camp on the RPLMN or equivalent PLMN (EPLMN) based on the stored PLMN selection mode corresponding to the duplicate value of the RPLMN in response to a failure of a registration attempt to the selected CSG cell associated with the second PLMN,
wherein the PLMN selection mode corresponding to the duplicate value of the RPLMN is an automatic PLMN selection mode.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/026,477Filed 9 Apr 2014
Priority: IN 4493/CHE/20133 Oct 2013
Published: US 2016/0242138 A118 Aug 2016
Granted: 26 Feb 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 60/04
Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration: using triggered events
H04W 4/08
Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective…:…
H04W 8/082
Mobility data transfer: for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
H04W 48/18
Access restriction ; Network selection; Access point selection: selecting a network or a communication service