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: 20170064741
    Abstract: The present disclosure provides techniques for configuring the utilization of request-to-send/clear-to-send (RTS/CTS) protocol procedures based on varying conditions at the STA. For example, an AP may identify one or more conditions, when satisfied, may trigger the STA to either enable or disable uplink (UL) transmissions associated with a RTS/CTS protocol procedure. In some aspects, an AP may determine a transmit opportunity (TXOP) threshold for an STA and may determine whether to broadcast a message having the TXOP threshold to multiple STAs including the STA or unicast the message to the STA. An STA may receive a message from an AP having a TXOP threshold and may replace, based on an indication in the received message, a current TXOP threshold in the STA with the TXOP threshold in the received message. The STA may transmit an UL RTS frame in response to a determination that a planned TXOP duration satisfies the TXOP threshold.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Yan ZHOU, Gwendolyn Denise BARRIAC, George CHERIAN, Simone MERLIN, Alfred ASTERJADHI, Qingjiang TIAN, Gang DING
  • Publication number: 20170064713
    Abstract: A wireless device may utilize enhanced OBSS identification techniques to determine whether an interfering transmission is associated with an OBSS. In an example, a wireless device may receive a WLAN packet that includes a preamble and a data region. The wireless device may analyze the preamble to determine whether the WLAN packet is an OBSS packet. If the wireless device determines there is insufficient information in the preamble to identify the WLAN packet as an OBSS packet, the wireless device may decode a portion of the data region (e.g., a MAC header) to determine if the WLAN packet is an OBSS packet. Prior to declaring a successful decoding of the MAC header, the wireless device may confirm the MAC header has been received reliably. Additionally or alternatively, BSS identifiers may be included in the data region and used to determine if the WLAN packet is associated with an OBSS.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventors: Gwendolyn Denise Barriac, Alfred Asterjadhi, Simone Merlin, George Cherian, Yan Zhou, Gang Ding, Qingjiang Tian
  • Publication number: 20170064695
    Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may transmit soliciting frames to a receiving device on a forward link. In response to the soliciting frames, the receiving device may transmit solicited frames in an immediate response back to the transmitting device on a reverse link. A solicited frame may fail to successfully decode at the transmitting device. The transmitting device in response may indicate an instantaneous value for one or more reverse link transmission parameters when sending a subsequent soliciting frame. The reverse link transmission parameters may be predetermined in a fixed mapping such that one or more values for the reverse link transmission parameters depend on values for the forward link transmission parameters. The receiving device may override the predetermined value and instead use the instantaneous value. An indicator of the instantaneous value may also be sent in a control field.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventors: Yan Zhou, Simone Merlin, Gwendolyn Denise Barriac, George Cherian, Alfred Asterjadhi, Gang Ding, Qingjiang Tian
  • Publication number: 20170055160
    Abstract: Techniques for reducing delay in scheduling traffic transmission in an overlapping basic service set (OBSS) environment by modifying backoff mechanisms are disclosed. In some examples, a device (e.g., station (STA) or access point (AP)) may decode at least a portion of a preamble of a received packet to determine whether the packet is sent by a member of an OBSS (e.g., STA or AP from a different BSS). Backoff operations are typically deferred as a result of the decoding. Aspects of the present disclosure provide a method, apparatus, and system to reduce delay in scheduling traffic transmissions by resuming the backoff operations prior to expiration of the period reserved for an OBSS packet by the network allocation vector (NAV). In other words, the device may not honor the NAV of the OBSS packet, and instead perform spatial reuse by transmitting another packet (or signal) on the same frequency channel during the NAV of the OBSS packet.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 23, 2017
    Inventors: Gwendolyn Denise BARRIAC, Simone MERLIN, George CHERIAN, Alfred ASTERJADHI, Yan ZHOU, Gang DING, Qingjiang TIAN
  • Publication number: 20170041953
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to bandwidth dependent carrier sensing for orthogonal frequency division multiple access (OFDMA). One example apparatus for wireless communications generally includes a first interface for obtaining at least a first frame with an indication of a time duration during which at least one bandwidth channel is occupied; a processing system configured to track, based at least in part on the indicated duration, availability of time and one or more resources on a plurality of bandwidth channels including the at least one bandwidth channel and to determine whether resources are available to transmit at least a second frame, based on the tracked availability; and a second interface for outputting the second frame for transmission if the determination indicates resources are available.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 9, 2017
    Inventors: Yan ZHOU, Gwendolyn Denise BARRIAC, Simone MERLIN, Alfred ASTERJADHI, George CHERIAN, Qingjiang TIAN, Gang DING
  • Patent number: 9565651
    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: Grant
    Filed: September 18, 2012
    Date of Patent: February 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: David Jonathan Julian, Zhanfeng Jia, Qingjiang Tian, Edward Harrison Teague
  • Publication number: 20160366254
    Abstract: Methods, devices, and computer program products for traffic information signaling in a wireless communications network are disclosed. In one aspect, a method of wireless communication network is disclosed. The method includes selecting, from a variable number of control fields, one or more control fields for inclusion in a frame. The method further includes generating the frame comprising the selected number of control fields, each control field comprising an end of control field, the end of control field storing an indicator indicative of an end of the selected number of control fields or a presence of another control field in the frame. The method further includes transmitting the frame.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 15, 2016
    Inventors: Alfred Asterjadhi, Simone Merlin, George Cherian, Gwendolyn Denise Barriac, Gang Ding, Qingjiang Tian, Yan Zhou
  • Publication number: 20160360397
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus is a first wireless device that may be configured to receive a data confirmation message from a second wireless device. The data confirmation message may indicate whether the second wireless device successfully received data transmitted to the second wireless device. The first wireless device may be configured to determine whether the second wireless device is associated with the first BSS or a second BSS different from the first BSS based on the received data confirmation message and on a MAC header of the received data confirmation message. The first wireless device may be configured to transmit in a time period to a third wireless device based on the determination of whether the second wireless device is associated with the first BSS or with the second BSS different from the first BSS.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 8, 2016
    Inventors: George CHERIAN, Gwendolyn Denise BARRIAC, Simone MERLIN, Alfred ASTERJADHI, Gang DING, Yan ZHOU, Qingjiang TIAN
  • Publication number: 20160330663
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus is configured to determine a communication deferral policy within a BSS associated with the apparatus. The apparatus is configured to receive a message from a second wireless device. The apparatus is configured to determine a message type of the message. The apparatus is configured to determine whether the message is associated with an OBSS based on the determined message type. The apparatus is configured to determine whether to defer communications based on the communication deferral policy, the message type, and whether the message is associated with the OBSS.
    Type: Application
    Filed: May 5, 2016
    Publication date: November 10, 2016
    Inventors: Yan ZHOU, Gwendolyn Denise BARRIAC, Simone MERLIN, George CHERIAN, Alfred ASTERJADHI, Qingjiang TIAN, Gang DING
  • Publication number: 20160197755
    Abstract: Certain aspects of the present disclosure relate to including deferral information in postambles and midambles. An apparatus for wireless communications may generally include a processing system configured to generate a first frame having at least one of a midamble or a postamble that provides an indication of a request for a device to defer transmitting for a duration and an interface configured to output the first frame for transmission. Another apparatus for wireless communications may generally include a processing system configured to generate a frame having at least one of a midamble or a postamble designed to allow a device, after exiting a low-power state, to perform synchronization to the frame and an interface for outputting the frame for transmission. Including midambles and postambles in a frame allow for more reliable responses and may reduce throughput losses and interference.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 7, 2016
    Inventors: Gwendolyn Denise Barriac, George Cherian, Simone Merlin, Alfred Asterjadhi, Yan Zhou, Qingjiang Tian, Gang Ding, Bin Tian
  • Patent number: 9385881
    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: Grant
    Filed: December 15, 2006
    Date of Patent: July 5, 2016
    Assignee: Thomson Licensing
    Inventors: Thomas Anthony Stahl, Qingjiang Tian, Robert Andrew Rhodes, Rodger Anthony Diemer
  • Publication number: 20160095139
    Abstract: A user terminal for multiple-user wireless communication is provided, comprising a transmit buffer configured to store uplink data for transmission. The user terminal comprises a processor configured to generate a request to transmit frame in response to uplink data being present in the transmit buffer, and initiate a transmit timer for determining when to transmit the request to transmit frame. The user terminal comprises a transmitter configured to transmit the request to transmit frame when the transmit timer expires or when the uplink data present in the transmit buffer exceeds a threshold amount. The user terminal comprises a receiver configured to receive a clear to transmit frame from an access point based on the transmitted request to transmit frame.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 31, 2016
    Inventors: Gang Ding, Simone Merlin, Gwendolyn Denise Barriac, George Cherian, Yan Zhou, Qingjiang Tian, Vinay Praneeth Boda
  • Patent number: 9271153
    Abstract: A network configurator can dynamically configure a device to couple network data between other devices in a wireless network. The devices can include two independent wireless transceivers that can each operate within different frequency bands, such as the 2.4 GHz and 5.0 GHz frequency bands. The configuration of the independent wireless transceivers can be based, at least in part, on device capabilities of the wireless transceivers, channel conditions, and a quality of service associated with the other wireless stations in the wireless network.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 23, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Peerapol Tinnakornsrisuphap, Qingjiang Tian, Eyal Hochdorf, Xuetao Chen
  • Patent number: 9173190
    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: Grant
    Filed: June 29, 2012
    Date of Patent: October 27, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Edward Harrison Teague, Qingjiang Tian, David Jonathan Julian, Zhanfeng Jia
  • Patent number: 9084177
    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: Grant
    Filed: December 13, 2006
    Date of Patent: July 14, 2015
    Assignee: THOMSON LICENSING
    Inventors: Thomas Anthony Stahl, Qingjiang Tian, Robert Andrew Rhodes
  • Publication number: 20150085844
    Abstract: A first AP in a wireless network determines that a wireless client device should re-associate from the first AP to a second AP of the wireless network. The first AP communicates an AP coordination message from the first AP to the second AP to share coordination information with the second AP. The first AP coordinates with the second AP to cause the re-association of the wireless client device in accordance with the coordination information. The first and second AP may coordinate directly to synchronize re-association activities. Re-association activities may include the use of a configuration message to the wireless client device, managing transmit power of beacon messages from the first and second APs, or forced disassociation and blocking. The first AP may maintain a record of which re-association activity was successful in causing the wireless client device to re-associate to the second AP.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Qingjiang Tian, Yanjun Sun, Peerapol Tinnakornsrisuphap
  • Publication number: 20150085699
    Abstract: A network configurator can dynamically configure a device to couple network data between other devices in a wireless network. The devices can include two independent wireless transceivers that can each operate within different frequency bands, such as the 2.4 GHz and 5.0 GHz frequency bands. The configuration of the independent wireless transceivers can be based, at least in part, on device capabilities of the wireless transceivers, channel conditions, and a quality of service associated with the other wireless stations in the wireless network.
    Type: Application
    Filed: May 22, 2014
    Publication date: March 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Sai Yiu Duncan Ho, Peerapol Tinnakornsrisuphap, Qingjiang Tian, Eyal Hochdorf, Xuetao Chen
  • Publication number: 20140362776
    Abstract: An application may be associated with an application endpoint that is accessed via a wireless local area network. In this disclosure, a wireless station may select and associated with one of a plurality of access points that provides better application throughput to the application endpoint. The application throughput may be based upon a combination of the wireless link rate (between the wireless station and the access point) as well as a measured application data rate (from the access point to the application endpoint). An access point may measure and advertise application data rates for a plurality of application endpoints, including one or more servers coupled to the local area network, a gateway to a wide area network, and/or a server coupled to the wide area network.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 11, 2014
    Inventors: Qingjiang Tian, Peerapol Tinnakornsrisuphap, Sai Yiu Duncan Ho, Bibhu Mohanty, Arnaud Meylan
  • Patent number: 8902894
    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: Grant
    Filed: June 16, 2011
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Zhanfeng Jia, David Jonathan Julian, Qingjiang Tian, Amal Ekbal
  • 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