Patents by Inventor Qingjiang Tian

Qingjiang Tian 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: 20140269667
    Abstract: Various aspects of the disclosed approach described herein allows a reduction of preamble overhead by tailoring transmitted packet preambles based on an expected level of clock-related offset between a transmitter and a receiver for a pair of communicating nodes. An estimate may be maintained at the transmitter of maximum time and frequency offsets between the transmitter and the receiver. The estimate may then be utilized to create a customized preamble sequence for generating the packet preamble. The estimate may also be utilized to select a particular modulation technique for the packet preamble.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Edward Harrison Teague, Qingjiang Tian, Gene Wesley Marsh, Arumugam Chendamarai Kannan
  • Patent number: 8755388
    Abstract: A communications method comprising the steps of receiving a data packet; processing the data packet; and transmitting an ack packet approximately at an end of a first defined time interval if the processing of the data packet is completed within the first defined interval, or transmitting the ack packet approximately at an end of a second defined time interval if the processing of the data packet is not completed within the first defined interval and is completed within the second defined interval. Another communication method comprising the steps of transmitting a data packet; scanning a channel for an ack packet approximately at an end of a first defined time interval from the transmission of the data packet; and scanning the channel for the ack packet approximately at an end of a second defined time interval from the transmission of the data packet if the ack packet was not received within the first defined interval.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: June 17, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, Qingjiang Tian, David Jonathan Julian
  • Publication number: 20140018068
    Abstract: Systems and methods for controlling a delay associated with paging a remote device. In one implementation, a paging device arranges page operations such that if one of two consecutive page scans performed by a remote device occurs during a response scan, the other page scan occurs during the transmission of a page. In another implementation, a device scanning for a page arranges page scans such that if one of two consecutive page scans occurs during a page response scan, the other page scan occurs during the transmission of a page. In another implementation, a device scanning for a page performs a series of sets of separate page scans, wherein the time interval between two of separate scans in a set is less than the time interval between adjacent sets. The page scans in a set are configured to ensure that one of them occurs during the transmission of a page.
    Type: Application
    Filed: September 18, 2012
    Publication date: January 16, 2014
    Inventors: David Jonathan Julian, Zhanfeng Jia, Qingjiang Tian, Edward Harrison Teague
  • Publication number: 20140004899
    Abstract: The disclosure relates to systems and methods for controlling a delay probability distribution associated with receiving a response to a page. The method entails performing a series of page operations, wherein each page operation entails transmitting a page and scanning for a page response. The method further entails adjusting at least one timing parameter associated with performing the series of page operations based on a characteristic of one or more scans for the page performed by the at least one remote device. The characteristic may be the period of periodic page scans performed by the at least one remote device.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Edward Harrison Teague, Qingjiang Tian, David Jonathan Julian, Zhanfeng Jia
  • Publication number: 20120281699
    Abstract: In accordance with aspects of the disclosure, a method, apparatus, and computer program product are provided for wireless communication. The method, apparatus, and computer program product may be configured to generate packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload. The method, apparatus, and computer program product may be further configured to generate a second indicator based on a type of data in the payload, and attach the second indicator to the data.
    Type: Application
    Filed: June 16, 2011
    Publication date: November 8, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, David Jonathan Julian, Qingjiang Tian, Amal Ekbal
  • Patent number: 8306032
    Abstract: A communications method comprising the steps of receiving a data packet; processing the data packet; and transmitting an ack packet approximately at an end of a first defined time interval if the processing of the data packet is completed within the first defined interval, or transmitting the ack packet approximately at an end of a second defined time interval if the processing of the data packet is not completed within the first defined interval and is completed within the second defined interval. Another communication method comprising the steps of transmitting a data packet; scanning a channel for an ack packet approximately at an end of a first defined time interval from the transmission of the data packet; and scanning the channel for the ack packet approximately at an end of a second defined time interval from the transmission of the data packet if the ack packet was not received within the first defined interval.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: November 6, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, Qingjiang Tian, David Jonathan Julian
  • Patent number: 8290069
    Abstract: A system and method for media access control are disclosed. The method comprises providing concurrent orthogonal channels to access media using pulse division multiple access to define pulse positions, wherein the pulse division multiple access includes a time hopping sequence and an offset to distinguish the concurrent orthogonal channels. In addition, the method comprises processing signals associated with at least one of the orthogonal channels.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: October 16, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, David Jonathan Julian, Qingjiang Tian, James W. Dolter, Vito R. Bica, Harinath Garudadri, Chinnappa K. Ganapathy
  • Publication number: 20110231657
    Abstract: A transmitting apparatus generates a first bit stream from a second bit stream by encoding at least a portion of the bits from the second bit stream, generates a code for the second bit stream, and attaches the code to the first bit stream for transmission to a receiving apparatus. A receiving apparatus receive from a transmitting apparatus a first bit stream with a code, generates a second bit stream from the first bit stream by decoding at least a portion of the bits from the first bit stream, computes the code for the second bit stream, and compares the computed code with the code from the first bit stream.
    Type: Application
    Filed: June 1, 2011
    Publication date: September 22, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Qingjiang Tian, Zhanfeng Jia, Lu Xiao, David Jonathan Julian
  • Publication number: 20110044338
    Abstract: A method and apparatus are described for managing acknowledgements, including identifying data packets and acknowledgements with a connection, determining which of the acknowledgements can be eliminated, replacing the acknowledgements that can be eliminated with a single acknowledgement and transmitting the single acknowledgement. An alternative method and apparatus are described for managing acknowledgements, including receiving a data segment, keeping track of connections, determining if there are enough data segments for a pre-determined number of channel time allocations and generating the acknowledgments for a selected connection if there are enough data segments for the pre-determined number of channel time allocations.
    Type: Application
    Filed: December 20, 2006
    Publication date: February 24, 2011
    Inventors: Thomas Anthony Stahl, Qingjiang Tian
  • Publication number: 20100235689
    Abstract: A transmitting apparatus generates a first bit stream from a second bit stream by encoding at least a portion of the bits from the second bit stream, generates a code for the second bit stream, and attaches the code to the first bit stream for transmission to a receiving apparatus. A receiving apparatus receive from a transmitting apparatus a first bit stream with a code, generates a second bit stream from the first bit stream by decoding at least a portion of the bits from the first bit stream, computes the code for the second bit stream, and compares the computed code with the code from the first bit stream.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 16, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Qingjiang Tian, Zhanfeng Jia, Lu Xiao, David Jonathan Julian
  • Publication number: 20100165869
    Abstract: A communications method comprising the steps of receiving a data packet; processing the data packet; and transmitting an ack packet approximately at an end of a first defined time interval if the processing of the data packet is completed within the first defined interval, or transmitting the ack packet approximately at an end of a second defined time interval if the processing of the data packet is not completed within the first defined interval and is completed within the second defined interval. Another communication method comprising the steps of transmitting a data packet; scanning a channel for an ack packet approximately at an end of a first defined time interval from the transmission of the data packet; and scanning the channel for the ack packet approximately at an end of a second defined time interval from the transmission of the data packet if the ack packet was not received within the first defined interval.
    Type: Application
    Filed: March 9, 2010
    Publication date: July 1, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, Qingjiang Tian, David Jonathan Julian
  • Publication number: 20100091759
    Abstract: A method and apparatus are described for creating a multi-media stream (e.g., video, voice, audio, etc. . . . ) Super-MAC frame in a physical protocol data unit, including inserting a physical layer header into a channel time allocation and generating the multi-media stream SuperMAC frame further including, appending a media access control header after the physical layer header, calculating a header correction code, appending the header correction code after the media access control header, appending a media access control multi-media stream payload from a transmit queue, calculating a frame check sequence, appending the frame check sequence after the media access control multi-media stream payload and repeating the above acts, after inserting the physical layer header, until one of the channel time allocation is full or all transmit queues are empty.
    Type: Application
    Filed: December 15, 2006
    Publication date: April 15, 2010
    Inventors: Thomas Anthony Stahl, Qingjiang Tian, Robert Andrew Rhodes, Rodger Anthony Diemer
  • Publication number: 20100086073
    Abstract: A system and method for media access control are disclosed. The method comprises providing concurrent orthogonal channels to access media using pulse division multiple access to define pulse positions, wherein the pulse division multiple access includes a time hopping sequence and an offset to distinguish the concurrent orthogonal channels. In addition, the method comprises processing signals associated with at least one of the orthogonal channels.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 8, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, David Jonathan Julian, Qingjiang Tian, James W. Dolter, Vito R. Bica, Harinath Garudadri, Chinnappa K. Ganapathy
  • Publication number: 20100074366
    Abstract: A communications method comprising the steps of receiving a data packet; processing the data packet; and transmitting an ack packet approximately at an end of a first defined time interval if the processing of the data packet is completed within the first defined interval, or transmitting the ack packet approximately at an end of a second defined time interval if the processing of the data packet is not completed within the first defined interval and is completed within the second defined interval. Another communication method comprising the steps of transmitting a data packet; scanning a channel for an ack packet approximately at an end of a first defined time interval from the transmission of the data packet; and scanning the channel for the ack packet approximately at an end of a second defined time interval from the transmission of the data packet if the ack packet was not received within the first defined interval.
    Type: Application
    Filed: October 8, 2008
    Publication date: March 25, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, Qingjiang Tian, David Jonathan Julian
  • Publication number: 20100054215
    Abstract: A method and apparatus for wirelessly re-distributing multi-media streams, including receiving multi-media streams at a master device from a source, adaptively determining channel time allocations in response to status information for transmit queues and transmission channel conditions, constructing a superframe from said multi-media streams for insertion into said downstream channel time allocations and wireless transmitting the channel time allocations to effect re-distribution of said multi-media streams to a remote device, are described. Also described is a method for wirelessly receiving re-distributed a multi-media stream including receiving a beacon signal and a channel time allocation and receiving said re-distributed multi-media stream.
    Type: Application
    Filed: December 13, 2006
    Publication date: March 4, 2010
    Applicant: Thomson Licensing
    Inventors: Thomas Anthony Stahl, Qingjiang Tian, Robert Andrew Rhodes