Patents by Inventor Lei Mao

Lei Mao 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: 20100315984
    Abstract: A method for transmitting broadcast service data in a single frequency network including a Radio Network Controller and one or more base stations each with a cell including one or more sectors, the method includes: transmitting, by the Radio Network Controller, broadcast service data and a first transmission time to the base station; and transmitting, by the base station, the broadcast service data to each of its sector after the first transmission time, where the broadcast service data is transmitted to adjacent sectors sharing a common station address at different transmission times. Also, the present invention discloses a system and base station for transmitting broadcast service data in a single frequency network. With this technical solution, the phenomenon of fast fading of received signals in the prior art which occurs at adjacent edge zones of adjacent sectors in the same cell of the single frequency network can be avoided, and thus improving performance of receiving the signals.
    Type: Application
    Filed: November 15, 2007
    Publication date: December 16, 2010
    Inventors: Yingmin Wang, Yu Ding, Jiajun Yang, Lei Mao, Junyun Yang
  • Publication number: 20100284319
    Abstract: The present invention discloses a MBMS dedicated carrier configuration method, including: at least one of MBMS dedicated carriers in a cell is chose and assigned MBMS control information of all MBMS dedicated carriers and MBMS system information; and frequency information and scrambling code group ID information of at least one MBMS dedicated carriers assigned bundling information is assigned to conventional service carriers in the cell. The present invention also discloses a device for realizing said method and a MBMS transmission method based on dedicated carriers assigned the bundling information. The present invention realizes MBMS bundling on the dedicated carriers, and UE can receive services by directly sensing the carriers bearing control signaling, and thus it can reduce meaningless switching sense by the UE and save power.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 11, 2010
    Applicant: DA TANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Xuelong Wang, Yu Ding, Lei Mao, Shiyan Ren
  • Publication number: 20100278090
    Abstract: An access method of MBMS on dedicated carrier relates to MBMS access technology on dedicated carrier, including: synchronize a user equipment to a MBMS dedicated carrier; the user equipment detects a start-frame of system message on the MBMS dedicated carrier; and the terminal monitors the system message from the start-frame of system message. An apparatus of realizing the method is also provided.
    Type: Application
    Filed: September 18, 2008
    Publication date: November 4, 2010
    Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
    Inventors: Shiyan Ren, Yu Ding, Lei Mao
  • Publication number: 20100173578
    Abstract: A method for searching for a broadcast/multicast single frequency network cluster, when a terminal needs to receive the broadcast/multicast service in the broadcast/multicast single frequency network cluster, the terminal synchronizes to a non broadcast/multicast single frequency network cell which is associated with the broadcast/multicast single frequency network cluster; and the terminal searches for the broadcast/multicast single frequency network cluster on the basis of the information indicated by the system information in the non broadcast/multicast single frequency network cell. So that the UE can search for the corresponding MBSFN cluster, and can receive the MBMS service in the searched MBSFN cluster.
    Type: Application
    Filed: July 18, 2008
    Publication date: July 8, 2010
    Inventors: Xuelong Wang, Yu Ding, Shiyan Ren, Lei Mao
  • Patent number: 6394085
    Abstract: A spacer for use with a powdered medicament inhaler. The spacer comprises a slender curved body, which defines a chamber, an inlet communicating with the chamber and an outlet communicating with the chamber. The inlet and outlet are arranged so that in use an airstream passing from the inlet through the chamber to he outlet is caused by the slender curved body to following a rotational flow path. This selectively extracts particles of powdered medicament entrained in the airstream.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: May 28, 2002
    Assignee: Norton healthcare Ltd.
    Inventors: John Graham Hardy, Lei Mao, Nick Smalley, Brian David Barney, Vijay Patel
  • Patent number: 6073629
    Abstract: A spacer for use with a powdered medicament inhaler. The spacer comprises a slender curved body, which defines a chamber, an inlet communicating with the chamber and an outlet communicating with the chamber. The inlet and outlet are adapted to provide a rotational flow path in use for an airstream passing from the inlet through the chamber to the outlet. This selectively extracts particles of powdered medicament entrained in the airstream.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: June 13, 2000
    Assignee: Norton Healthcare Ltd.
    Inventors: John Graham Hardy, Lei Mao, Nick Smalley, Brian David Barney, Vijay Patel