Patents by Inventor Kaifeng Xia

Kaifeng Xia 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: 12388509
    Abstract: A method for selecting a cyclic shift diversity sequence, and a related apparatus are disclosed. The method includes: sending a frame by using a cyclic shift diversity (CSD) sequence, comprising: generating a frame, wherein the frame comprises a first data subframe conforming to a first communication mechanism and a third data subframe conforming to the first communication mechanism; sending the frame, wherein the first data subframe and the third data subframe are sent by using a cyclic shift diversity sequence. Under an EHT standard, a preferred cyclic shift diversity sequence can be obtained through selection from massive combinations of CSD values. Work efficiency is improved, and an operation burden is reduced.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: August 12, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kaifeng Xia, Ming Gan, Xin Zuo, Xun Yang
  • Publication number: 20240056157
    Abstract: A method for selecting a cyclic shift diversity sequence, and a related apparatus are disclosed. The method includes: sending a frame by using a cyclic shift diversity (CSD) sequence, comprising: generating a frame, wherein the frame comprises a first data subframe conforming to a first communication mechanism and a third data subframe conforming to the first communication mechanism; sending the frame, wherein the first data subframe and the third data subframe are sent by using a cyclic shift diversity sequence. Under an EHT standard, a preferred cyclic shift diversity sequence can be obtained through selection from massive combinations of CSD values. Work efficiency is improved, and an operation burden is reduced.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 15, 2024
    Inventors: Kaifeng Xia, Ming Gan, Xin Zuo, Xun Yang
  • Patent number: 11838086
    Abstract: In a method of sending a frame using a cyclic shift diversity (CSD) sequence, a wireless device generates a frame comprising a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG) field, a repeated legacy signal (RL-SIG) field, an extremely high throughput signal A (EHT-SIG A) field, and an extremely high throughput signal B (EHT-SIG B) field. The wire device sends the frame through a set of transmit antennas by performing cyclic shift over the fields according to a CSD sequence. The number of transmit antennas is greater than 8. The number of cyclic shift diversities in the CSD sequence is equal to a number of the transmit antennas, and each cyclic shift diversity has a value that is a multiple of 12.5.
    Type: Grant
    Filed: October 10, 2021
    Date of Patent: December 5, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kaifeng Xia, Ming Gan, Xin Zuo, Xun Yang
  • Publication number: 20220029687
    Abstract: In a method of sending a frame using a cyclic shift diversity (CSD) sequence, a wireless device generates a frame comprising a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG) field, a repeated legacy signal (RL-SIG) field, an extremely high throughput signal A (EHT-SIG A) field, and an extremely high throughput signal B (EHT-SIG B) field. The wire device sends the frame through a set of transmit antennas by performing cyclic shift over the fields according to a CSD sequence. The number of transmit antennas is greater than 8. The number of cyclic shift diversities in the CSD sequence is equal to a number of the transmit antennas, and each cyclic shift diversity has a value that is a multiple of 12.5.
    Type: Application
    Filed: October 10, 2021
    Publication date: January 27, 2022
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Kaifeng Xia, Ming Gan, Xin Zuo, Xun Yang