Patents by Inventor Tsung-Lien HO

Tsung-Lien HO 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: 8711672
    Abstract: A wireless communication system using pilot allocation, method and pilot pattern thereof are disclosed. The method is applied for allocating pilots for transmission of multiple pilot streams in a multiple-input-multiple-output (MIMO) antenna system using orthogonal frequency division multiplexing (OFDM) modulation. In embodiment, the pilot allocation are applied in contiguous frame structure, and two pilots are allocated for each pilot stream in frame structure comprising 18 subcarriers and 6 OFDM symbols. The 8 pilot streams are grouped into two pilot stream clusters, and pilots for each pilot stream cluster are grouped into two pilot clusters. Four pilot clusters are then allocated in first frame structure, and the allocation of the pilot clusters in second frame structure corresponds to those in first frame structure. Therefore, better transfer rate in such wireless communication system can be achieved.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: April 29, 2014
    Assignee: Acer Incorporated
    Inventor: Tsung-Lien Ho
  • Patent number: 8675540
    Abstract: A resource allocation method and a resource indication method for E-MBS system, and a mobile station using the same are proposed. The resource units of a first service flow are allocated following the end of the E-MBS MAP of the E-MBS region, along with the increasing of frequency domain index. When the edge of the E-MBS region in frequency domain is reached, the resource units of mth service flow are continued to be allocated from top frequency domain index in next time domain index, where m is an integer greater than or equal to 1. The resource units of m+1th service flow are allocated following the mth service flow, and such procedures are repeated until all service flows are allocated required resource units. The resource indication method indicates a specific service flow by absolute location in the E-MBS region formed based upon the resource allocation method.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 18, 2014
    Assignee: Acer Incorporated
    Inventors: Yan-Xiu Zheng, Yu-Chuan Fang, Tsung-Lien Ho, Chun-Yuan Chiu, Chang-Lan Tsai
  • Publication number: 20110158148
    Abstract: A resource allocation method and a resource indication method for E-MBS system, and a mobile station using the same are proposed. The resource units of a first service flow are allocated following the end of the E-MBS MAP of the E-MBS region, along with the increasing of frequency domain index. When the edge of the E-MBS region in frequency domain is reached, the resource units of mth service flow are continued to be allocated from top frequency domain index in next time domain index, where m is an integer greater than or equal to 1. The resource units of m+1th service flow are allocated following the mth service flow, and such procedures are repeated until all service flows are allocated required resource units. The resource indication method indicates a specific service flow by absolute location in the E-MBS region formed based upon the resource allocation method.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 30, 2011
    Applicant: ACER INCORPORATED
    Inventors: Yan-Xiu Zheng, Yu-Chuan Fang, Tsung-Lien Ho, Chun-Yuan Chiu, Chang-Lan Tsai
  • Publication number: 20100166090
    Abstract: A wireless communication system using pilot allocation, method and pilot pattern thereof are disclosed. The method is applied for allocating pilots for transmission of multiple pilot streams in a multiple-input-multiple-output (MIMO) antenna system using orthogonal frequency division multiplexing (OFDM) modulation. In embodiment, the pilot allocation are applied in contiguous frame structure, and two pilots are allocated for each pilot stream in frame structure comprising 18 subcarriers and 6 OFDM symbols. The 8 pilot streams are grouped into two pilot stream clusters, and pilots for each pilot stream cluster are grouped into two pilot clusters. Four pilot clusters are then allocated in first frame structure, and the allocation of the pilot clusters in second frame structure corresponds to those in first frame structure. Therefore, better transfer rate in such wireless communication system can be achieved.
    Type: Application
    Filed: September 9, 2009
    Publication date: July 1, 2010
    Applicant: ACER INCORPORATED
    Inventor: Tsung-Lien HO