Patents by Inventor Huijian Bo

Huijian Bo 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).

  • Method, apparatus and system for eliminating aliasing noise in multi-carrier modulation system
    Patent number: 8923454
    Abstract: A method, an apparatus and a system for eliminating aliasing noise in a multi-carrier modulation system are disclosed. The method includes: acquiring a first power spectrum density template; acquiring information of in-band subcarriers whose aliasing noise is greater than background noise, and acquiring a difference between the aliasing noise and the background noise of the in-band subcarriers; adjusting the first power spectrum density template according to the information of the in-band subcarriers and the corresponding difference to obtain a second power spectrum density template; and sending signals according to the second power spectrum density template. The method, the apparatus, and the system disclosed herein eliminate the aliasing crosstalk noise, improve the performance and stability of in-band services without involving upgrade or modification of the Customer Premises Equipment (CPE), and are easy to implement.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 30, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huijian Bo, Tao Wu, Yongjun Zhang
  • METHOD, APPARATUS AND SYSTEM FOR ELIMINATING ALIASING NOISE IN MULTI-CARRIER MODULATION SYSTEM
    Publication number: 20120114063
    Abstract: A method, an apparatus and a system for eliminating aliasing noise in a multi-carrier modulation system are disclosed. The method includes: acquiring a first power spectrum density template; acquiring information of in-band subcarriers whose aliasing noise is greater than background noise, and acquiring a difference between the aliasing noise and the background noise of the in-band subcarriers; adjusting the first power spectrum density template according to the information of the in-band subcarriers and the corresponding difference to obtain a second power spectrum density template; and sending signals according to the second power spectrum density template. The method, the apparatus, and the system disclosed herein eliminate the aliasing crosstalk noise, improve the performance and stability of in-band services without involving upgrade or modification of the Customer Premises Equipment (CPE), and are easy to implement.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 10, 2012
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Huijian Bo, Tao Wu, Yongjun Zhang