UE enhancement for service recovery in mobile communications network

Patent metadata

Field	Value
Publication number	US-8995989-B2
Application number	US-201313898911-A
Country	US
Kind code	B2
Filing date	May 21, 2013
Priority date	May 22, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A method of applying a network forbidden list for enhanced service recovery in mobile communication networks is provided. In a first embodiment, upon receiving an error cause for a RAT in a selected network, a UE stores a PLMN ID, the RAT information, and the error cause as an entry in the forbidden list. The UE will not select to the RAT of the network stored in the forbidden list until the PLMN/RAT entry is removed from the forbidden list. In a second embodiment, upon receiving an error cause in a selected network, a UE stores a PLMN ID, the error cause, and a timer value as an entry in the forbidden list. The UE will not select to the network stored in the forbidden list until the timer associated with the PLMN ID is expired.

First claim

What is claimed is:

1. A method, comprising:
attaching to a mobile communication network using a radio access technology (RAT) having a Public Land Mobile Network (PLMN) ID by a user equipment (UE);
receiving an error code that indicates a network error cause; and
storing the PLMN ID as an entry in a network forbidden list, wherein the entry also includes a radio access technology (RAT) associated with the network and the received error code, and wherein the UE refrains from a…

Assignees

• Mediatek Inc
• Mediatek Inc

Inventors

• Jheng Yu-Syuan
• Chang Hung-Lin

Classifications

• H04W48/02

  Electricity · mapped topic

• H04W48/18 Primary

  Electricity · mapped topic