Patents by Inventor Qinghua Jiang

Qinghua Jiang 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: 20200021979
    Abstract: Methods, apparatus, and computer-readable media are described to encode a trigger frame for a second station (STA2). A first sounding frame for the STA2 is generated. The first timestamp is associated with a transmission of the first sounding frame. A second sounding frame from the STA2 based upon the first sounding frame is decoded. The second sounding frame includes a holding time indication associated with a second timestamp and a third timestamp. A fourth timestamp is associated with receiving the second sound frame. The holding time indication is protected. A round-trip time is calculated based upon the first timestamp, the holding time indication, and the fourth timestamp.
    Type: Application
    Filed: October 24, 2017
    Publication date: January 16, 2020
    Inventors: Jonathan Segev, Qinghua Li, Benny Abramovsky, Feng Jiang
  • Publication number: 20200008185
    Abstract: Methods, apparatuses, and computer readable media for tone plans and preambles for extremely high throughput (EHT) in a wireless network are disclosed. An apparatus of an EHT access point (AP) or EHT station (STA), where the apparatus includes processing circuitry configured to: encode a physical layer (PHY) protocol data unit (PPDU), the PPDU including a EHT preamble, the EHT preamble including a legacy preamble portion and a EHT preamble portion, the legacy preamble including a legacy short training field (L-SFT), a legacy long-training field (L-LTF), and a legacy signal field (L-SIG), the EHT preamble portion comprising an EHT short signal field (EHT S-SIG), the EHT S-SIG including a modulation and coding scheme (MCS) subfield indicating a MCS of a subsequent data portion. The PPDU may be transmitted on a distributed or contiguous resource unit (RU) allocation. The RU may be configured to not straddle two physical 20 MHz subchannels.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Xiaogang Chen, Ilan Sutskover, Qinghua Li, Robert J. Stacey, Thomas J. Kenney, Feng Jiang
  • Publication number: 20200007283
    Abstract: Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. An AP may be configurable to operate as a master AP of a multi-AP group comprising the master AP and one or more satellite APs. The master AP may select, from the multi-AP group, a set of APs that is to communicate with a STA in accordance with joint processing. The master AP may allocate one or more spatial streams to each of the APs of the set of APs for a joint transmission of a null data packet (NDP) to the STA for channel sounding. The master AP may transmit an NDP announcement (NDPA) that indicates that the APs of the set of APs are to perform the joint transmission of the NDP.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Xiaogang Chen, Qinghua Li, Feng Jiang, Po-Kai Huang, Laurent Cariou, Robert J. Stacey, Thomas J. Kenney, Ziv Avital
  • Publication number: 20190373499
    Abstract: This disclosure describes systems, methods, and devices related to null data packet (NDP) frame format. A device may cause to send a null data packet announcement (NDPA) frame to a responding station device (RSTA). The device may cause to send a first sounding NDP frame comprising one or more fields formatted to support 2.4 gigahertz (GHz) and 5 GHz bands in a non-trigger-based ranging measurement with the RSTA. The device may identify after a passage of a short inter-frame space (SIFS) time a second NDP frame received from the RSTA. The device may identify a location measurement report frame from the RSTA.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 5, 2019
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Xiaogang Chen, Robert Stacey
  • Publication number: 20190373599
    Abstract: Embodiments of an access point (AP), a user station (STA), and a method for range estimation in a wireless network are generally described herein. For example, the AP may encode a common information field of a first trigger frame to include a trigger frame type configured to check the readiness of associated and unassociated STAs. The AP may transmit the first trigger frame to STAs and receive feedback from the STAs. The AP may further encode, based on the feedback, a common information field of a second trigger frame to include one of: a trigger frame type that solicits negotiation packets from associated and unassociated STAs using an association identifier (AID) and a pre-AID; or a trigger frame type that solicits channel sounding packets from associated and unassociated STAs using an AID and a pre-AID. The AP may further transmit the second trigger frame to the STAs.
    Type: Application
    Filed: March 31, 2017
    Publication date: December 5, 2019
    Inventors: Chittabrata Ghosh, Feng Jiang, Qinghua Li, Yuvai Amizur, Jonathan Segev
  • Publication number: 20190361108
    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to encode a null data packet announce (NDPA) frame for transmission to a responder station (RSTA), the NDPA frame indicating a sounding sequence number, and encode a first null data packet (NDP) for transmission at a time T1 to the RSTA. The processing circuitry may be further configured to: decode a second NDP, the second NDP received from the RSTA, wherein the second NDP is received at a time T4, and decode a first location measurement report (LMR). The processing circuitry may be further configured to in response to an ISTA-to-RSTA LMR feedback agreement between the RSTA and ISTA indicating the ISTA is to send a second LMR, encode a second LMR.
    Type: Application
    Filed: June 13, 2019
    Publication date: November 28, 2019
    Inventors: Feng Jiang, Jonathan Segev, Chittabrata Ghosh, Qinghua Li, Robert J. Stacey, Po-Kai Huang
  • Publication number: 20190356410
    Abstract: Disclosed are methods, devices, and computer readable storage mediums for encoding and decoding messages for fast link adaptation. In one aspect, a method of a high efficiency (HE) station (STA) (HE STA) includes encoding an aggregated control subfield of a high throughput (HT) Control field to signal one or more of: a request to use dual carrier modulation (DCM), a request to use a particular resource unit, an uplink (UL) power headroom indication, and an indication that the HE STA is using a minimum transmit power for a current modulation and coding scheme (MCS). The method also includes configuring the HE STA to transmit a HE-PPDU including the HT control field.
    Type: Application
    Filed: November 17, 2017
    Publication date: November 21, 2019
    Inventors: Yaron Alpert, Qinghua Li, Chittabrata Ghosh, Feng Jiang
  • Publication number: 20190349067
    Abstract: This disclosure describes systems, methods, and devices related to signaling and use of multiple transmission chains. A device may determine bits indicative of eight or fewer spatial streams. The device may encode the bits by generating an indication of more than eight spatial streams. The device may determine one or more fields of a frame, the one or more fields including the encoded bits. The device may send the frame.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 14, 2019
    Inventors: Po-Kai Huang, Yaron Alpert, Laurent Cariou, Xiaogang Chen, Feng Jiang, Qinghua Li, Robert Stacey
  • Publication number: 20190342757
    Abstract: Methods and apparatuses for arranging sounding symbol are provided. An example apparatus comprises memory; and processing circuitry coupled to the memory. The processing circuitry is configured to encode a sounding signal. The sounding signal comprises a plurality of sounding symbols, and the repetition of sounding symbols to be transmitted in sequence is avoided.
    Type: Application
    Filed: June 25, 2019
    Publication date: November 7, 2019
    Inventors: Assaf GUREVITZ, Robert STACEY, Jonathan SEGEV, Qinghua LI, Danny ALEXANDER, Shlomi VITURI, Feng JIANG
  • Publication number: 20190293780
    Abstract: Some demonstrative embodiments include apparatuses systems and/or methods of ranging measurement. For example, an apparatus may include circuitry and logic configured to cause a first wireless communication station (STA) to receive from a second STA a sounding transmission for a range measurement of a range between the first STA and the second STA; to determine a channel response estimation based on the sounding transmission from the second STA; to determine a timing value based on the channel response estimation; and to transmit a feedback message to the second STA, the feedback message including the timing value.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Qinghua Li, Feng Jiang, Xintian Lin, Ofer Bar-Shalom, Leor Banin, Jonathan Segev, Assaf Gurevitz, Yuval Amizur, Robert Stacey
  • Patent number: 10414981
    Abstract: The present invention relates to the technical field of liquid crystal displays, and particularly relates to a liquid crystal composition containing a 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and use thereof, wherein the liquid crystal composition of the present invention comprises, in percentages by weight, 1-50% of one or more compounds represented by general formula I and 10-70% of one or more compounds represented by general formula II, and may further comprise 0-30% of compounds represented by general formula III and/or 6-45% of one or more compounds represented by general formulas IV to XIII. The liquid crystal composition provided by the present invention has a low rotational viscosity and a large elastic constant, is presented as having a shorter response time, and can significantly improve the display effect of a liquid crystal display when applied to TN, IPS and FFS mode displays.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 17, 2019
    Assignee: BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD
    Inventors: Maoxian Chen, Haiguang Chen, Shihong Chu, Xin Wei, Xinying Wang, Tianmeng Jiang, Huiqiang Tian, Yunpeng Guo, Lin Zhang, Qinghua Li, Jin Yuan, Xuehui Su
  • Publication number: 20190281459
    Abstract: This disclosure describes systems, methods, and devices related to long training field (LTF) sequence security protection. A device may determine a null data packet (NDP) frame comprising one or more fields. The device may determine a first long training field (LTF) and a second LTF, the first LTF and the second LTF being associated with a first frequency band of the NDP frame, wherein time domain LTF symbols of first LTF and the second LTF are generated using different LTF sequences. The device may determine a third LTF and a fourth LTF, the third LTF and the fourth LTF being associated with the a second frequency band of the NDP frame, wherein time domain LTF symbols of third LTF and the fourth LTF are generated using different LTF sequences. The device may cause to send the NDP frame to an initiating or a responding device.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Inventors: Feng Jiang, Qinghua Li, Jonathan Segev, Xiaogang Chen, Po-Kai Huang, Huaning Niu
  • Publication number: 20190281484
    Abstract: Methods, apparatuses, and computer-readable medium are described for doing fine timing measurements for one or more stations. A trigger frame is encoded for stations. Uplink null data packets are received. A time of arrival for the UP NDP and a time of departure for a downlink null data packet are determined. The time of arrival and time of departure are encoded into a data packet, such as a downlink null data packet announcement. A wireless device is configured to transmit the data packet to a station.
    Type: Application
    Filed: June 27, 2017
    Publication date: September 12, 2019
    Inventors: Feng Jiang, Qinghua Li, Chittabrata Ghosh, Yuval Amizur, Robert J. Stacey, Jonathan Segev
  • Patent number: 10394073
    Abstract: The present disclosure relates to a color film substrate, a method for manufacturing the color film substrate, a display device and a method for manufacturing the display device. The color film substrate comprises: a basal substrate; a color film layer arranged on a side of the basal substrate; a conductive layer arranged on another side of the basal substrate, the conductive layer comprising a plurality of conductive regions; each conductive region comprising a driving channel and an inducing channel; a first gap between the driving channel and the inducing channel in a same conductive region, a second gap between adjacent conductive regions; the first gap and the second gap correspond to a position of a black matrix in the color film layer; the black matrix being used for absorbing light, which light comes from a side of the basal substrate provided with the conductive layer, enters from the first gaps and the second gaps, and passes through the basal substrate.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: August 27, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gaofei Shi, Yijun Wang, Jie Song, Tianzhen Liu, Qinghua Jiang
  • Publication number: 20190260531
    Abstract: This disclosure describes systems, methods, and devices related to allocating non-continuous resource units (RUs). A device may determine a non-continuous RU allocation for one or more devices in a 80 MHz bandwidth including four 20 MHz channels, the non-continuous RU allocation including disabled tones of a 20 MHz channel of the four 20 MHz channels, and the disabled tones being a subset of tones within the 20 MHz channel. The device may determine a high efficiency wireless frame comprising an indication of the non-continuous RU allocation. The device may send the high efficiency wireless frame to one or more multiple devices.
    Type: Application
    Filed: May 4, 2019
    Publication date: August 22, 2019
    Inventors: Xiaogang Chen, Daniel Bravo, Laurent Cariou, Po-Kai Huang, Feng Jiang, Qinghua Li, Robert Stacey
  • Publication number: 20190253143
    Abstract: An FSO communication system includes a laser, an optical detector and a first optical adjustment module and a controller. The laser is configured to emit an optical signal. The optical detector is configured to receive an optical signal from the first optical adjustment module. The controller is configured to obtain an optical power of an optical signal received by the optical detector; and generate a control command based on the optical power and transmit the control command. The first optical adjustment module is configured to: receive the control command and the optical signal emitted by the laser; adjust, in response to the control command, the optical signal emitted by the laser to cause the optical power of the optical signal received by the optical detector to be in a preset reasonable range; and transmit the adjusted optical signal to the optical detector.
    Type: Application
    Filed: May 11, 2017
    Publication date: August 15, 2019
    Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.
    Inventors: Jianghua FENG, Jiabo XIAO, Qinghua QUAN, Tairan ZHANG, Guotao JIANG, Qi LU
  • Publication number: 20190238259
    Abstract: Methods, apparatuses, and computer readable media for high efficiency (HE) beacon and HE formats in a wireless network are disclosed. An apparatus of a high efficiency (HE) access point (AP), where the apparatus comprises processing circuitry configured select a <HE-MCS, NSS=1> tuple from the basic HE-MCS set of tuples, if a basic HE modulation and control scheme (MCS)(HE-MCS) and a number of spatial streams (NSS) set of tuples is not empty, and otherwise select the <HE-MCS, NSS=1> tuple from a mandatory HE-MCS and NSS set of tuples. The processing circuitry may be further configured to encode a beacon frame in a HE single user (SU) physical layer (PHY) protocol data unit (PPDU), in accordance with the selected <HE-MCS, NSS=1> tuple, and configure the HE AP to transmit the HE SU PPDU. Null data packets formats, methods, computer readable media, and apparatuses are disclosed for multiple 20 MHz operations.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Po-Kai Huang, Feng Jiang, Xiagang Chen, Qinghua Li, Robert J. Stacey, Laurent Cariou
  • Patent number: 10365362
    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to encode a null data packet announce (NDPA) frame for transmission to a responder station (RSTA), the NDPA frame indicating a sounding sequence number, and encode a first null data packet (NDP) for transmission at a time T1 to the RSTA. The processing circuitry may be further configured to: decode a second NDP, the second NDP received from the RSTA, wherein the second NDP is received at a time T4, and decode a first location measurement report (LMR). The processing circuitry may be further configured to in response to an ISTA-to-RSTA LMR feedback agreement between the RSTA and ISTA indicating the ISTA is to send a second LMR, encode a second LMR.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: July 30, 2019
    Assignee: Intel IP Corporation
    Inventors: Feng Jiang, Jonathan Segev, Chittabrata Ghosh, Qinghua Li, Robert J. Stacey, Po-Kai Huang
  • Publication number: 20190200383
    Abstract: This disclosure describes systems, methods, and devices related to uplink (UL) null data packet (NDP) format for passive location. A device may cause to send a trigger frame that solicits poll response to one or more anchor stations involved in a passive ranging measurement. The device may identify one or more polling response frames received from the one or more anchor stations. The device may cause to send a trigger frame that solicits uplink null data packet (NDP) to the one or more anchor stations, wherein the uplink NDP comprises an indication of a high efficiency (HE) single user (SU) frame type.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Inventors: Feng Jiang, Dibakar Das, Xiaogang Chen, Chittabrata Ghosh, Qinghua Li, Jonathan Segev, Robert Stacey, Ganesh Venkatesan
  • Publication number: 20190190752
    Abstract: Apparatuses, computer readable media, and methods for physical layer short feedback. An apparatus of a high efficiency (HE) station is disclosed. The apparatus comprising circuitry configured to: decode a trigger frame for short feedback, the trigger frame comprising an indication of a resource unit (RU) to respond to a short feedback request, where the RU comprises one or more tones and one or more symbols. The circuitry may be further configured to encode a short feedback response to the short feedback request on the RU, where each of the one or more tones of the RU is to be encoded with one or more of: a positive signal, a negative signal, and no signal. The circuitry may be further configured to configure the HE station to transmit the short feedback response to an access point in accordance with orthogonal frequency division multiple access (OFDMA) using resources of the RU.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 20, 2019
    Inventors: Xiaogang Chen, Qinghua Li, Laurent Cariou, Feng Jiang