Patents by Inventor Jiangei Ma

Jiangei Ma 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).

  • Multi-site MIMO cooperation in cellular network
    Patent number: 8767682
    Abstract: In a cellular communications network comprising a plurality of transmitting sites wherein each transmitting site comprises at least one antenna, a method of serving a given data stream to a target-mobile terminal, comprising: designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 1, 2014
    Assignee: BlackBerry Limited
    Inventors: Mohammadhadi Baligh, Jiangei Ma, Hua Xu
  • MULTI-SITE MIMO COOPERATION IN CELLULAR NETWORKS
    Publication number: 20130029677
    Abstract: A method of serving a given data stream to a target mobile terminal, in a cellular communications network that includes a plurality of transmitting sites wherein each transmitting site including at least one antenna, is provided. The method includes designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique. Other techniques for multi-site MIMO cooperation are also provided.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 31, 2013
    Inventors: Mohammadhadi Baligh, Jiangei Ma, Hua Xu
  • MULTI-SITE MIMO COOPERATION IN CELLULAR NETWORK
    Publication number: 20130016662
    Abstract: In a cellular communications network comprising a plurality of transmitting sites wherein each transmitting site comprises at least one antenna, a method of serving a given data stream to a target-mobile terminal, comprising: designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Inventors: Mohammadhadi Baligh, Jiangei Ma, Hua Xu