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).

  • TECHNIQUES TO CONTROL UPLINK POWER
    Publication number: 20130109432
    Abstract: Techniques are described that provide uplink power control techniques that can support different uplink multi-input multi-output (MIMO) transmission schemes. Open and closed loop power control schemes can be used to prescribe the power level of the mobile station.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 2, 2013
    Inventors: Rongzhen Yang, Apostolos Papathanassiou, Hujun Yin, Yang-Seok Choi, Wei Guan
  • Uplink power control scheme
    Patent number: 8433359
    Abstract: An uplink power control technique may include a simplified maximum sector throughput (SMST) and a generalized maximum sector throughput (GMST). The SMST and GMST techniques may be used to determine a maximum sector throughput and cell-edge throughput to enhance the overall efficiency of the communication system. The uplink power control technique may determine the optimal uplink power value without collecting interference over thermal noise and without computing the individual channel losses in each neighboring sector.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 30, 2013
    Assignee: Intel Corporation
    Inventors: Rongzhen Yang, Wei Guan, Hujun Yin
  • Acknowledgment channel design for wireless access networks
    Patent number: 8433966
    Abstract: Embodiments of the present invention provide an acknowledgment channel design in which an acknowledgment sequence is scrambled with a station-specific scrambling sequence. Other embodiments may be described and claimed.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 30, 2013
    Assignee: Intel Corporation
    Inventors: Yi Hsuan, Roshni M. Srinivasan, Hujun Yin
  • Tone reservation techniques for reducing peak-to-average power ratios
    Patent number: 8416675
    Abstract: Embodiments of the present disclosure describe closed loop scheduled peak-to-average power (PAPR) reduction systems and methods to facilitate desired PAPR reduction. Other embodiments describe weighted tone reservation (WTR) methods and systems for PAPR reduction. Still other embodiments may be described and claimed.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 9, 2013
    Assignee: Intel Corporation
    Inventors: Rongzhen Yang, Hujun Yin, Yang-Seok Choi, Linging Gui
  • Techniques to control transmitter power level
    Patent number: 8417279
    Abstract: A channel normally used to transmit acknowledgement of successful signal receipt and an indication of unsuccessful signal receipt is adopted to transmit power control information from a base station to a mobile station. The power control information can be encoded as a binary code where each value of the code is indicated by an acknowledgement or non-acknowledgement signal.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 9, 2013
    Assignee: Intel Corporation
    Inventors: Rongzhen Yang, Ali Koc, Wei Guan, Hujun Yin
  • Uplink feedback channel reporting mechanism in wireless systems
    Patent number: 8417190
    Abstract: An uplink feedback channel reporting method is disclosed for using the primary and secondary fast feedback channels to efficiently report the channel quality, MIMO feedback, and CQI types of data from a mobile station to a base station. The reporting method reports regular information periodically and non-regular information on demand.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 9, 2013
    Assignee: Intel Corporation
    Inventors: Hongmei Sun, Guangjie Li, Rath Vannithamby, Jeong Lee, Yuan Zhu, Feng Zhou, Jong-Kae Fwu, Hujun Yin, Kuilin Chen
  • MULTI-RADIO MEDIUM-AGNOSTIC ACCESS ARCHITECTURE
    Publication number: 20130083678
    Abstract: A multi-radio medium-agnostic access architecture is proposed. The multi-radio medium-agnostic architecture features a medium-agnostic MAC that interfaces between the TCP/IP and the physical layers of user equipment, such as a laptop computer or cellular phone having multiple radios, so that the radios in the user equipment may operate simultaneously, seamlessly, and transparently to higher layers.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventor: HUJUN YIN
  • Determining hybrid automatic repeat request (HARQ) timing
    Patent number: 8413001
    Abstract: A communication apparatus (CA) such as a mobile node/station (MN), a base station (BS), or a radio station (RS) may support determination of HARQ timing. The CA may generate at least in part one or more generalized frames such as a frequency division duplex (FDD) frame or a time division duplex (TDD) frame. The generalized FDD and TDD frames may include support to determine the HARQ timing considering various factors, which may affect the HARQ timing. The FDD and TDD frames may include information corresponding to various factors to determine the HARQ timing considering factors such as DL/UL ratio, number of sub-frames per frame, variable transmission time interval (TTI), relay zones, legacy IEEE® 802.16e zones, and availability of ACKCH.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 2, 2013
    Assignee: Intel Corporation
    Inventors: Jing Zhu, Yujian Zhang, Hujun Yin
  • Directed wireless communication
    Patent number: 8412106
    Abstract: In an implementation of directed wireless communication, a multi-beam directed signal system coordinates directed wireless communication with client devices. A transmit beam-forming network routes data communication transmissions to the client devices via directed communication beams that are emanated from an antenna assembly, and a receive beam-forming network receives data communication receptions from the client devices via the directed communication beams.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: April 2, 2013
    Assignee: XR Communications, LLC
    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
  • Systems and methods for channel coding of wireless communication
    Patent number: 8397126
    Abstract: Embodiments of an apparatus and method for coding of wireless transmissions channel are generally described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: March 12, 2013
    Assignee: Intel Corporation
    Inventors: Changlong Xu, Tom Harel, Huaning Niu, Jong-Kae Fwu, Yang-Seok Choi, Hujun Yin
  • Subcarrier permutation to achieve high frequency diversity of OFDMA systems
    Patent number: 8379619
    Abstract: An embodiment of the present invention provides a method of improving subcarrier permutation to achieve high frequency diversity of OFDMA systems in wireless networks, comprising introducing different tone selections for different symbols, such that if a channel has only a few tones in each symbol of a resource unit it can still have sufficient frequency diversity.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: February 19, 2013
    Assignee: Intel Corporation
    Inventors: Yi Hsuan, Yang-Seok Choi, Hujun Yin
  • WLAN Having Load Balancing Based on Access Point Loading
    Publication number: 20130028116
    Abstract: A network having distribution of access point loading includes access points to which mobile stations can associate themselves based upon access point beacon signal levels and loading levels for the various access points. A mobile station receives beacon signals from various access points and determines a signal strength for the received beacon signals. The mobile station also receives access point loading information from the access points. The mobile station associates with an access point based upon the access point beacon signal strengths and the access point loading information.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Zoran Kostic, Kin K. Leung, Hujun Yin
  • Interference avoidance with synchronous HARQ and persistent scheduling
    Patent number: 8359512
    Abstract: A method of avoiding periodic interference by permuting periodic transmissions by a base station (BS) may include transmitting a frame of data to a subscriber station (SS). The BS may check for an acknowledgement of the frame of data from the SS and may schedule a next frame of data for transmission or retransmission based on whether the acknowledgement was received from the SS. The scheduling may include permuting traffic within the next frame in time or in frequency relative to similar traffic in a prior frame according to a predetermined function. The BS may generate media access protocol (MAP) information for the next frame based on the permuting.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 22, 2013
    Assignee: Intel Corporation
    Inventors: Huaning Niu, Hujun Yin
  • METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN WIRELESS SYSTEMS
    Publication number: 20130005376
    Abstract: A method is disclosed to eliminate inter-cluster interference of user equipment located at the edge of a cluster of cells. The method operates by employing fractional frequency reuse (FFR) principles on clusters or combinations of cells in a wireless neighborhood, in which base stations in the cells coordinate their operations in a scheme known as coordinated multi-point transmission (CoMP). By using the FFR principles to single out edge users of the CoMP cluster, the method mitigates interference and increases throughput for the edge users.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: Intel Corporation
    Inventors: HOOMAN SHIRANI-MEHR, Yang-Seok Choi, Hujun Yin
  • Techniques to control uplink power
    Patent number: 8340593
    Abstract: Techniques are described that provide uplink power control techniques that can support different uplink multi-input multi-output (MIMO) transmission schemes. Open and closed loop power control schemes can be used to prescribe the power level of the mobile station.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: December 25, 2012
    Assignee: Intel Corporation
    Inventors: Rongzhen Yang, Apostolos Papathanassiou, Hujun Yin, Yang-seok Choi, Wei Guan
  • HARQ feedback channel indexing scheme in wireless communication systems
    Patent number: 8316269
    Abstract: An enhanced semi-explicit solution for HARQ feedback channel indexing in wireless communication systems is disclosed. The HARQ feedback channel indexing method may be applied to the HARQ feedback channel transmitted in the downlink, as well as the HARQ feedback channel transmitted in the uplink.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: November 20, 2012
    Assignee: Intel Corporation
    Inventors: Yujian Zhang, Hujun Yin, Yi Hsuan
  • System and method for allocating subchannels among mobile stations in a wireless access network
    Patent number: 8315213
    Abstract: Embodiments of base station and method for allocating subchannels of a time-slot in a wireless access network are generally described herein. Other embodiments may be described and claimed. In some embodiments, the assignment of subchannels may be based on subchannel quality and average throughput for mobile stations currently associated with a base station. In some embodiments, modified proportional fairness may be achieved.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 20, 2012
    Assignee: Intel Corporation
    Inventors: Hujun Yin, Roshni Srinivasan
  • BASE STATION AND METHOD FOR RESOURCE ALLOCATION IN A 3GPP LTE NETWORK
    Publication number: 20120287895
    Abstract: Embodiments of a base station and methods for allocating uplink bandwidth using SDMA are generally described herein. In some embodiments, uplink bandwidth request messages are received on a bandwidth request contention channel from one or more subscriber stations. The uplink bandwidth request messages are generated by the subscriber stations by modulating pilot subcarriers of a randomly selected disjoint pilot pattern with a randomly selected orthogonal sequence. The base station allocates uplink bandwidth to the subscriber stations when the uplink bandwidth request messages are successfully detected and decoded. The base station uses an SDMA technique to determine channel responses based on the orthogonal sequences to detect and decode the uplink bandwidth request messages.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Inventors: Qinghua Li, Ozgur Oyman, Wendy C. Wong, Hujun Yin, Xintian E. Lin
  • Method and apparatus for transmitting an ACK/NACK signal in a wireless communication system
    Patent number: 8300585
    Abstract: Machine-readable media, methods, apparatus and system for transmitting ACK/NACK signal in a wireless communication system are described. In some embodiments, a sequence corresponding to one of acknowledge (ACK) information and non-acknowledge (NACK) information may be determined. Then, the sequence may be mapped onto a transmission channel for later transmission from the mobile station to a base station. In some embodiments, the transmission channel may be allocated with at least a part of three feedback mini-tiles (FMTs), wherein each of the FMTs comprises two subcarriers contiguous in frequency domain by six orthogonal frequency division multiplexing (OFDM) symbols contiguous in time domain and the three FMTs being discontinuous in frequency domain.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: October 30, 2012
    Assignee: Intel Corporation
    Inventors: Changlong Xu, Qinghua Li, Yuan Zhu, Hongmei Sun, Jong-Kae Fwu, Hujun Yin, Sassan Ahmadi
  • Wireless broadband resource allocation indexing
    Patent number: 8300586
    Abstract: Wireless broadband resource allocation indexing is generally presented. In this regard a method is introduced comprising determining a total number of allowable continuous logical resource unit (LRU) allocations for a bandwidth, removing allowable allocations to generate a set of allocations that can be indexed with fewer bits than the total number of allowable allocations, and storing an index of the set of allocations in a memory. Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 30, 2012
    Assignee: Intel Corporation
    Inventors: Ping Wang, Roshni M. Srinivasan, Hujun Yin, Huaning Nin