公开(公告)号：US20230354156A1

公开(公告)日：2023-11-02

申请号：US18016848

申请日：2021-09-03

Applicant: QUALCOMM Technologies, Inc.

Inventor： Peng HU ,  Hewu GU ,  Jun DENG ,  Ling XIE ,  Liang HONG ,  Xuqiang ZHANG ,  Xiaochen CHEN ,  Yong HOU ,  Xiaoning LU ,  Shan QING ,  Zhongyue LOU ,  Tom CHIN

IPC: H04W48/20 ,  H04W48/02 ,  H04W48/08

CPC classification number: H04W48/08 ,  H04W48/02 ,  H04W48/20

Abstract: A user equipment (UE) receives a SIB1 message from a base station. The SIB1 message lists first and second public land mobile network identifiers (PLMN IDs), the first PLMN ID having a corresponding tracking area code (TAC) and the second PLMN ID not having a TAC. The UE reports the first PLMN ID and TAC but not the second PLMN ID while performing PLMN selection. In another aspect, the UE unsuccessfully attempts to select or reselect to a shared cell of the base station with the second PLMN ID. In response to the failed attempt, the UE bars the shared cell as a candidate for cell selection/reselection, due to a missing TAC. When the UE attempts to select or reselect to the shared cell with the first PLMN ID, which may or may not have a TAC, the UE reevaluates the barring due to selection of the first PLMN ID.