公开(公告)号：US20250106743A1

公开(公告)日：2025-03-27

申请号：US18894027

申请日：2024-09-24

Applicant: MEDIATEK INC.

Inventor： Jia-Hao Wu ,  Tzyuan Shiu ,  Da-Wei Wang ,  Lu-Chi Lin ,  Mu-Chi Fang ,  Wen-Yang Chou ,  Tsung-Sheng Tang ,  Chung-Pi Lee

IPC: H04W48/16 ,  H04W56/00 ,  H04W84/04

Abstract: An out-of-service recovery search method includes establishing a frequency list including at least one searchable frequency, searching a suitable cell of a network according to the frequency list when the user terminal is in an out-of-service state, determining at least one first skip condition of the user terminal, performing a full-band power scan mechanism for scanning received signal strength indication (RSSIs) of user terminal supported frequency bands when the at least one first skip condition of the user terminal is absent and no suitable cell of the network is searched within the searchable frequency of the frequency list, skipping the full-band power scan mechanism when the at least one first skip condition of the user terminal is present and no suitable cell of the network is searched within the searchable frequency, and performing an RSSI sniffer for scanning a signal power of each frequency of the searchable frequency.

公开(公告)号：US20230216641A1

公开(公告)日：2023-07-06

申请号：US18088701

申请日：2022-12-26

Applicant: MEDIATEK INC.

Inventor： Bohan Zhang ,  Yabo Li ,  Wei-Jen Chen ,  Tsung-Sheng Tang

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/006 ,  H04L5/0023 ,  H04L5/0035

Abstract: A method to perform. beam management (BM) and/or synchronization (Sync) using primary synchronization signal (PSS) when pilot contamination is low to improve system performance is proposed. A UE first determines pilot contamination. level on PSS of a synchronization signal block (SSB), depending on different network deployment. scenarios. The UE then adaptively perform BM or Sync, by dynamically adjusting to the pilot contamination level on PSS. If the pilot contamination level is high, then the UE follows a 3-symbol mode, e.g., uses only PBCH0, SSS, and PBCH2 symbols for performing BM or Sync. Otherwise, if the pilot contamination level is low, then the UE follows a 4-symbol mode, e.g., uses PSS as an extra symbol for BM or Sync to improve system performance.