Patents by Inventor Jiahai Li

Jiahai Li 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).

  • Publication number: 20230079472
    Abstract: Provided are a weight sending method and apparatus, a storage medium and an electronic device. The weight sending method includes: dividing a plurality of cells to obtain one or more subnets: for any first subnet of the one or more subnets, determining a subnet target broadcast beam weight set of the first subnet from preset weights of a member cell according to at least one of: cell coverage of the member cell included in the first subnet or inter-cell interference of the member cell included in the first subnet; and sending the determined subnet target broadcast beam weight set to the first subnet.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 16, 2023
    Inventors: YANCHENG MA, Hongjun XIE, Jiahai LI
  • Patent number: 8798569
    Abstract: The present invention discloses a channel estimation method and device in a multi-antenna system. The method includes: obtaining the original channel estimation value of each array element of an array antenna for each uplink user received by the antenna; converting them into a channel estimation matrix; dividing the channel estimation matrix into an amplitude matrix and a phase matrix; grouping the elements of each array element at the same tap location in the amplitude matrix together for signal transformation processing and performing transform domain noise reduction to the high-frequency portion of the obtained transform domain data; inversely transforming the noise-reduced data to a noise-reduced amplitude matrix; and combining the noise-reduced amplitude matrix with the phase matrix into a restored channel estimation matrix, wherein the amplitude of each channel estimation value of the restored channel estimation matrix has undertaken a multi-antenna transform domain noise reduction process.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: August 5, 2014
    Assignee: ZTE Corporation
    Inventors: Fan Shi, Jiahai Li
  • Publication number: 20120213115
    Abstract: The present invention discloses a channel estimation method and device in a multi-antenna system. The method includes: obtaining the original channel estimation value of each array element of an array antenna for each uplink user received by the antenna; converting them into a channel estimation matrix; dividing the channel estimation matrix into an amplitude matrix and a phase matrix; grouping the elements of each array element at the same tap location in the amplitude matrix together for signal transformation processing and performing transform domain noise reduction to the high-frequency portion of the obtained transform domain data; inversely transforming the noise-reduced data to a noise-reduced amplitude matrix; and combining the noise-reduced amplitude matrix with the phase matrix into a restored channel estimation matrix, wherein the amplitude of each channel estimation value of the restored channel estimation matrix has undertaken a multi-antenna transform domain noise reduction process.
    Type: Application
    Filed: July 1, 2010
    Publication date: August 23, 2012
    Applicant: ZTE CORPORATION
    Inventors: Fan Shi, Jiahai Li