Method and system for selecting a visited network to be used by a user equipment in a wireless communication system
OwnerHan-Na Lim, Chen-Ho Chin +3inventors
InventorsHan-Na Lim, Chen-Ho Chin, Ho Kim, Sung-Ho Choi, O-Sok Song
Life of this patent
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Abstract
Preference of a home public land mobile network (HPLMN) is applied when a roaming user equipment (UE) selects a visited public land mobile network (VPLMN). The roaming UE sends an available VPLMN list to the HPLMN. A control message of a non-access stratum (NAS) or an application can be used to receive a preferred VPLMN list from the HPLMN or to send the preferred VPLMN list after the HPLMN requests that the UE should send the available VPLMN list or without a request. The HPLMN manages a VPLMN to be used by the roaming UE and enables a user to receive a better service.
Claims23
A method for selecting a visited network (VPLMN) to be used by a user equipment in a wireless communication system, comprising:
- receiving a preferred visited network list from a home network (HPLMN) when the user equipment is registered to a visited network;
- determining whether the visited network is required to be reselected on a basis of the received preferred visited network list;
- and
- reselecting the visited network according to a determination result and registering the user equipment to the reselected visited network.
A wireless communication system, comprising:
- a user equipment for receiving a currently available preferred visited network (VPLMN) list and selecting an optimal visited network in current location by referring to the received list;
- and
- a home network (HPLMN) for creating the preferred visited network list and sending the preferred visited network list to the user equipment.
A computer readable medium of instructions for controlling a user equipment to select a visited network (VPLMN) in a wireless communication system, comprising:
- a first set of instructions adapted to control the user equipment to receive a preferred visited network list from a home network (HPLMN) when the user equipment is registered to a visited network;
- a second set of instructions adapted to control the user equipment to determine whether the visited network is required to be reselected on a basis of the received preferred visited network list;
- and
- a third set of instructions adapted to control the user equipment to reselect the visited network according to a determination result and register the user equipment to the reselected visited network.
Dependencies are inferred from the claim text.