Patents by Inventor Hujun Yin

Hujun Yin 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).

  • Patent number: 9961651
    Abstract: Embodiments of computer-implemented methods, systems, computing devices, and computer-readable media are described herein for assigning transmission power to one or more components carriers in an uplink transmission utilizing carrier aggregation. In one embodiment, power is assigned to a component carrier based on the priority level of the component carrier. In another embodiment, power is assigned based on absolute priority order. In yet another embodiment, power is assigned based on relative priority order.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: May 1, 2018
    Assignee: INTEL CORPORATION
    Inventors: Rongzhen Yang, Jong-Kae Fwu, Hujun Yin
  • Patent number: 9936521
    Abstract: A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 3, 2018
    Assignee: Intel Corporation
    Inventors: Qinghua Li, Honggang Li, Huaning Niu, Yi Hsuan, Yuan Zhu, Xiaogang Chen, Jong-Kae Fwu, Alexei Vladimirovich Davydov, Hujun Yin, Xintian E. Lin, Wendy C. Wong, Yujian Zhang, Apostolos Papathanassiou
  • Patent number: 9924474
    Abstract: Some wireless communications environments, such as Wi-Fi, may include inexpensive power amplifiers where the power adjustment may not be accurate, and may also include pathloss measurement errors that are high enough to degrade performance of a power control algorithm. To address this issue, an exemplary aspect is directed toward a finite state power control algorithm and technique that, while designed for next generation Wi-Fi standards, such as 802.11ax, can in general be used with any wireless communication protocol or standard.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 20, 2018
    Assignee: INTEL IP CORPORATION
    Inventors: Rongzhen Yang, Po-Kai Huang, Hujun Yin, Robert Stacey, Yongsen Ma, Peng Meng
  • Patent number: 9912452
    Abstract: This disclosure describes methods, apparatus, and systems related to a high efficiency signal field encoding structure. A device may determine a communications channel having a bandwidth of a frequency band. The device may determine a first group of subchannels of the bandwidth and a second group of subchannels of the bandwidth. The device may determine a high-efficiency signal field to be transmitted on the communications channel to a first device. The device may encode the high-efficiency signal field using the first group of subchannels and the second group of subchannels. The device may cause to send the high-efficiency signal field to the first device.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: March 6, 2018
    Assignee: Intel IP Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Yuan Zhu, Rongzhen Yang, Hujun Yin
  • Publication number: 20180054286
    Abstract: Techniques for improving observed time difference of arrival (OTDOA) positioning are discussed. One example apparatus employable in an eNB comprises a processor, transmitter circuitry, and receiver circuitry. The processor is configured to: generate a set of positioning reference signals (PRSs); and encode the set of PRSs for a multi-antenna transmission. The transmitter circuitry is configured to transmit the set of PRSs via the multi-antenna transmission. The receiver circuitry is configured to receive a set of reference signal time differences (RSTDs) from a user equipment (UE) in response to the set of PRSs. The processor is further configured to estimate a position of the UE based at least in part on the set of RSTDs.
    Type: Application
    Filed: December 18, 2015
    Publication date: February 22, 2018
    Inventors: Yang Tang, Rui Huang, Seunghee Han, Shafi Bashar, Hujun Yin
  • Publication number: 20180035387
    Abstract: A method is provided by the present invention, comprises determining communication channel quality from a first wireless communications device to one or more other wireless communications devices, and assigning a zone/subband and corresponding power level to the one or more other wireless communications devices based on the communication channel quality. The method is directed toward at least addressing the interference from neighboring Access Points (APs), and reducing interference between devices using different power zones/subbands when the wide-band of Orthogonal Frequency-Division Multiple Access (OFDMA) based technologies were adopted in Wi-Fi systems for unlicensed bands.
    Type: Application
    Filed: March 27, 2015
    Publication date: February 1, 2018
    Inventors: Rongzhen YANG, Peng MENG, Po-Kai HUANG, Qinghua LI, Hujun YIN, Robert STACEY, Xiaogang CHEN
  • Patent number: 9838168
    Abstract: This disclosure describes systems, methods, computer readable media, and/or apparatus related to encoding wireless communication preamble structures with cyclic redundancy check (CRC) that is performed on both a common part, as well as, station specific parts of a signaling field. The signaling field generated by this mechanism may be relatively shorter, resulting in less preamble overhead, than if a separate CRC was to be provided for each of the station specific parts, as well as the common part of the signaling field. In additional embodiments, tail bits may be provided for a combination of the common part of the signaling field and each station specific part of the signaling field. Compared to providing tail bits separately for the common part and each of the station specific parts, removing the tail bits from the common part may result in relatively less overhead of the preamble structure.
    Type: Grant
    Filed: December 26, 2015
    Date of Patent: December 5, 2017
    Assignee: Intel IP Corporation
    Inventors: Qinghua Li, Xiaogang Chen, Yuan Zhu, Yushu Zhang, Xintian E. Lin, Hujun Yin
  • Patent number: 9838232
    Abstract: Apparatuses, methods, and computer readable media for signaling high efficiency short training field are disclosed. A high-efficiency wireless local-area network (HEW) station is disclosed. The HEW station may comprise circuitry configured to: receive a trigger frame comprising an allocation of a resource block for the HEW station, and transmit a high efficiency short training field (HE-STF) with a same bandwidth as a subsequent data portion, wherein the transmit is to be in accordance with orthogonal frequency division multiple access (OFDMA) and wherein the transmit is within the resource block. A subcarrier allocation for the HE-STF may matche a subcarrier allocation for the subsequent data portion. The HE-STF and the subsequent data portion may be transmitted with a same power. A total power of active subcarriers of the HE-STF may be equal to or proportional to a second total of data subcarriers and pilot subcarriers of the subsequent data portion.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 5, 2017
    Assignee: Intel IP Corporation
    Inventors: Xiaogang Chen, Qinghua Li, Rongzhen Yang, Yuan Zhu, Hujun Yin
  • Patent number: 9838984
    Abstract: Examples are disclosed for a system to improve wireless spectral efficiency, including a processor, memory coupled to the processor, a radio coupled to the processor, one or more antennas coupled to the radio, wireless logic to be executed on the processor component to process reception of a high-power request for open sharing (ROS) signal by a master wireless receiver from a master wireless transmitter and to process transmission of a high-power confirmation of open sharing (COS) signal to the master wireless transmitter, the high-power COS signal comprising an indication of a desired reduction of transmission power level from high power by the master wireless transmitter, and a timer initiated by the high-power COS signal, the timer to indicate a period of time when the master wireless transmitter and master wireless receiver are enabled for low-power communication.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 5, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Rongzhen Yang, Hujun Yin, Qinghua Li, Huaning Niu
  • Publication number: 20170338899
    Abstract: Example systems, methods, and devices for mitigating interference in wireless networks are discussed. One example method includes the operations of passing channel frequency offsets of a plurality of LTF symbols on a plurality of subcarriers through a high pass frequency band, encoding the plurality of LTF symbols with a plurality of LTF sequences across frequency, and encoding the LTF symbols in time and/or frequency. Another example includes the operations of receiving a plurality of LTF symbols on a plurality of subcarriers for channel estimation of one or more streams, removing the encoding across time, removing the encoding across frequency, and removing the LTF sequence(s), and passing the modified LTF symbols through a smoothing filter, for example, a low pass filter for removing the interference due to CFOs. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
    Type: Application
    Filed: April 12, 2017
    Publication date: November 23, 2017
    Inventors: Qinghua Li, Xiaogang Chen, Yuan Zhu, Hujun Yin
  • Patent number: 9825729
    Abstract: A transmitter/receiver pair may estimate a first channel interference caused during the spatial reuse phase by the transmitter/receiver pair to other transmitter/receiver pairs over a channel. A second channel interference experienced by the transmitter/receiver pair may be estimated during the spatial reuse phase by the transmitter/receiver pair from the other transmitter/receiver pairs. An interference margin may be estimated for the channel based on the first and second channel interferences. The interference margin may be announced to the other transmitter/receiver pairs in frame. The interference margin may then be complied with while communicating over the channel in order to control the interference.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: November 21, 2017
    Assignee: Intel IP Corporation
    Inventors: Po-Kai Huang, Rongzhen Yang, Robert J. Stacey, Hujun Yin
  • Patent number: 9813841
    Abstract: A system and method for wireless wide area network (WWAN) assisted proximity wireless local area network (WLAN) peer-to-peer (P2P) connection and offloading is disclosed. The method includes the operation of identifying a first wireless device and a second wireless device between which a WLAN P2P connection is desired. Each wireless device can have a WWAN radio and a WLAN radio. WLAN information can be sent for at least one of the first and second wireless devices via the WWAN to a P2P configuration server. A WLAN P2P configuration can be received from the P2P configuration server at the first and second wireless devices via the WWAN for WLAN P2P communication between the first and second wireless devices. A WLAN P2P connection can be set up between the first and second wireless devices using the WLAN P2P configuration. The first and the second wireless devices can communicate using the WLAN P2P connection.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 7, 2017
    Assignee: INTEL CORPORATION
    Inventors: Hujun Yin, Rongzhen Yang, Jin Fu
  • Publication number: 20170265150
    Abstract: Embodiments of user equipment and methods for improved uplink transmission power management and scheduling, are generally described herein. For example, in an aspect, a method of uplink power management is presented, the method includes determining whether a total desired transmission power exceeds a total configured maximum output power for a subframe. When the total desired transmission power exceeds the total configured maximum output power, the method includes allocating a minimum proactive power limitation to each serving cell, assigning a remaining power to one or more channels based on priority, and computing a total power assignment based on the allocating and the assigning.
    Type: Application
    Filed: December 20, 2016
    Publication date: September 14, 2017
    Inventors: Rongzhen Yang, Hujun Yin, Xiaogang Chen, Jong-Kae Fwu, Qinghua Li
  • Publication number: 20170250847
    Abstract: This disclosure describes systems, and methods related to parallel transmission of high efficiency SIGNAL field in communication networks. A device may generate a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, one or more legacy SIGNAL fields, one or more high efficiency SIGNAL fields, and one or more channel training fields. The device may cause to send the one or more channel training fields to one or more first devices. The device may determine one or more spatial channel streams associated with at least one of the one or more first devices, the one or more spatial channel streams includes a first stream and a second stream. The device may partition the at least one of the one or more high efficiency SIGNAL fields into, at least in part, a common part and one or more user-specific parts, the one or more user-specific parts includes a first user-specific part and a second user-specific part.
    Type: Application
    Filed: September 30, 2015
    Publication date: August 31, 2017
    Applicant: INTEL CORPORATION
    Inventors: Qinghua LI, Xiaogang CHEN, Huaning NIU, Robert J. Stacey, Yuan ZHU, Hujun YIN
  • Publication number: 20170238265
    Abstract: Some wireless communications environments, such as Wi-Fi, may include inexpensive power amplifiers where the power adjustment may not be accurate, and may also include pathloss measurement errors that are high enough to degrade performance of a power control algorithm. To address this issue, an exemplary aspect is directed toward a finite state power control algorithm and technique that, while designed for next generation Wi-Fi standards, such as 802.11ax, can in general be used with any wireless communication protocol or standard.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 17, 2017
    Inventors: Rongzhen YANG, Po-Kai HUANG, Hujun YIN, Robert STACEY, Yongsen MA, Peng MENG
  • Publication number: 20170230092
    Abstract: Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a networking apparatus is configured to generate a plurality of sequences of symbols for transmission to plurality of client devices; transmit the plurality of sequences to the plurality of client device via one or more beams focused toward the client devices; and transmit the first sequence of symbols and the second sequence of symbols at least partly simultaneously.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 10, 2017
    Inventors: Marcus Da Silva, William J. Crilly, JR., James Brennan, Robert J. Conley, Siavash Alamouti, Eduardo Casas, Hujun Yin, Bobby Jose, Yang-Seok Choi, Vahid Tarokh, Praveen Mehrotra
  • Publication number: 20170230094
    Abstract: Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a network apparatus is configured to: receive a first signal transmission from a remote station via a first antenna element of an antenna and a second signal transmission from the remote station via a second antenna element of the antenna simultaneously; determine first signal information for the first transmission; determine second signal information for the second transmission, wherein the second signal information is different than the first signal information; determine a set of weighting values based on the first signal information and the second signal information, wherein the set of weighting values is configured to construct one or more beam-formed transmission signals; and generate the one or more beam-formed transmission signals based on the set of weighting values for transmission to the remote station.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Inventors: Marcus Da Silva, William J. Crilly, JR., James Brennan, Robert J. Conley, Siavash Alamouti, Eduardo Casas, Hujun Yin, Bobby Jose, Yang-Seok Choi, Vahid Tarokh, Praveen Mehrotra
  • Publication number: 20170222705
    Abstract: Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a networking apparatus is configured to generate a plurality of sequences of symbols for transmission to plurality of client devices; transmit the plurality of sequences to the plurality of client device via one or more beams focused toward the client devices; receive information regarding the one or more beams from the client devices; and modify at least one of the one or more beams based on the information.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Inventors: Marcus Da Silva, William J. Crilly, JR., James Brennan, Robert J. Conley, Siavash Alamouti, Eduardo Casas, Hujun Yin, Bobby Jose, Yang-Seok Choi, Vahid Tarokh, Praveen Mehrotra
  • Publication number: 20170223563
    Abstract: An interference-control based dynamic CCA scheme is described which will work in any compatible wireless system, including the 802.11 standards mentioned herein and in particular 802.11ac and 802.11ax. The interference control based dynamic CCA scheme can, for example, greatly improve overall wireless LAN system performance compared to other methods. The new scheme is based on interference control, by considering the possible interference to neighbouring devices, and improving overall system performance and inter-device “fairness” through this interference-based consideration technique.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 3, 2017
    Inventors: Rongzhen YANG, Po-Kai HUANG, Hujun YIN, Robert STACEY, Xiaogang CHEN
  • Patent number: 9698890
    Abstract: Embodiments of the present disclosure describe methods and apparatuses for selective application of cyclic shift diversity in uplink communications of mobile communication systems. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: July 4, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Xiaogang Chen, Qinghua Li, Robert Stacey, Hujun Yin, Rongzhen Yang