Patents by Inventor Yen-Hui Yeh

Yen-Hui Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11652595
    Abstract: Techniques and examples of tracking reference signal and framework thereof in mobile communications are described. A user equipment (UE) receives, from a base station of a network, a reference signal via a communication link between the UE and the base station. The reference signal contains resource configuration with respect to tracking reference signal (TRS) configuration. The UE also receives, from the base station, a TRS burst containing a plurality of TRS symbols with one or more components of the UE configured according to the TRS configuration. The UE processes the TRS burst to perform channel estimation, synchronization, time tracking, frequency tracking, or a combination thereof.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: May 16, 2023
    Inventors: Chiao-Yao Chuang, Song-Jheng Lin, Jianxuan Du, Yen-Hui Yeh
  • Publication number: 20200228262
    Abstract: Techniques and examples of tracking reference signal and framework thereof in mobile communications are described. A user equipment (UE) receives, from a base station of a network, a reference signal via a communication link between the UE and the base station. The reference signal contains resource configuration with respect to tracking reference signal (TRS) configuration. The UE also receives, from the base station, a TRS burst containing a plurality of TRS symbols with one or more components of the UE configured according to the TRS configuration. The UE processes the TRS burst to perform channel estimation, synchronization, time tracking, frequency tracking, or a combination thereof.
    Type: Application
    Filed: March 28, 2020
    Publication date: July 16, 2020
    Inventors: Chiao-Yao Chuang, Song-Jheng Lin, Jianxuan Du, Yen-Hui Yeh
  • Patent number: 10637625
    Abstract: Techniques and examples of tracking reference signal and framework thereof in mobile communications are described. A user equipment (UE) receives, from a base station of a network, a reference signal via a communication link between the UE and the base station. The reference signal contains resource configuration with respect to tracking reference signal (TRS) configuration. The UE also receives, from the base station, a TRS burst containing a plurality of TRS symbols with one or more components of the UE configured according to the TRS configuration. The UE processes the TRS burst to perform channel estimation, synchronization, time tracking, frequency tracking, or a combination thereof.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: April 28, 2020
    Assignee: MEDIATEK INC.
    Inventors: Chiao-Yao Chuang, Song-Jheng Lin, Jianxuan Du, Yen-Hui Yeh
  • Patent number: 10492159
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network, and uses broadcast information for performing radio link monitoring, cell measurement, or channel estimation with the service network.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 26, 2019
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20180323918
    Abstract: Techniques and examples of tracking reference signal and framework thereof in mobile communications are described. A user equipment (UE) receives, from a base station of a network, a reference signal via a communication link between the UE and the base station. The reference signal contains resource configuration with respect to tracking reference signal (TRS) configuration. The UE also receives, from the base station, a TRS burst containing a plurality of TRS symbols with one or more components of the UE configured according to the TRS configuration. The UE processes the TRS burst to perform channel estimation, synchronization, time tracking, frequency tracking, or a combination thereof.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Inventors: Chiao-Yao Chuang, Song-Jheng Lin, Jianxuan Du, Yen-Hui Yeh
  • Patent number: 10004053
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 19, 2018
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20180070326
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network, and uses broadcast information for performing radio link monitoring, cell measurement, or channel estimation with the service network.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Publication number: 20170164309
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 8, 2017
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Patent number: 9591599
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Patent number: 9572122
    Abstract: A method for a communication apparatus to align a frame boundary with a cell. A first time at which a predetermined synchronization signal is supposed to be received is determined after knowing a timing of the cell. The predetermined synchronization signal is a primary synchronization signal or a secondary synchronization signal. A second time at which the predetermined synchronization signal is actually received is determined. A first offset between the first time and the second time is determined. A timing of a local time base utilized by the communication apparatus according to the first offset is adjusted such that a frame boundary of the local time base and a frame boundary of the cell are aligned.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 14, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chih-Yuan Wang, Yen-Hui Yeh, Huei-Ya Chang
  • Publication number: 20150189613
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Application
    Filed: November 18, 2014
    Publication date: July 2, 2015
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Publication number: 20150172087
    Abstract: A method for a communication apparatus to align a frame boundary with a cell. A first time at which a predetermined synchronization signal is supposed to be received is determined after knowing a timing of the cell. The predetermined synchronization signal is a primary synchronization signal or a secondary synchronization signal. A second time at which the predetermined synchronization signal is actually received is determined. A first offset between the first time and the second time is determined. A timing of a local time base utilized by the communication apparatus according to the first offset is adjusted such that a frame boundary of the local time base and a frame boundary of the cell are aligned.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: MediaTek Inc.
    Inventors: Chih-Yuan WANG, Yen-Hui YEH, Huei-Ya CHANG
  • Patent number: 7729235
    Abstract: Methods and apparatuses for generating an OVSF code are disclosed. A proposed method for generating a current code chip of an OVSF code includes: determining a correlation factor between the current code chip and a preceding code chip of the OVSF code; and generating the current code chip according to the preceding code chip and the correlation factor.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 1, 2010
    Assignee: MediaTek Inc.
    Inventor: Yen-Hui Yeh
  • Patent number: 7684508
    Abstract: The invention relates to a transmission diversity detecting apparatus and method. The transmission diversity detecting apparatus is applied in a Wideband Code-Division Multiple-Access (WCDMA) system having a CIPCH channel and a synchronization channel for detecting an antenna diversity of a cell. The transmission diversity detecting apparatus includes an antenna diversity detecting unit for determining the antenna diversity; and a quality indicator generator, electrically connected to the antenna diversity detecting unit, for generating a quality indicator utilized for indicating the reliability of the antenna diversity determined by the antenna diversity detecting unit.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: March 23, 2010
    Assignee: MediaTek Incorporation
    Inventors: Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20070070876
    Abstract: Methods and apparatuses for generating an OVSF code are disclosed. A proposed method for generating a current code chip of an OVSF code includes: determining a correlation factor between the current code chip and a preceding code chip of the OVSF code; and generating the current code chip according to the preceding code chip and the correlation factor.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 29, 2007
    Inventor: Yen-Hui Yeh