Patents by Inventor Yujian Zhang

Yujian Zhang 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: 20160381708
    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: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    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
  • Publication number: 20160373994
    Abstract: Methods, systems, and devices for mobility state estimation in a heterogeneous network are disclosed herein. User equipment (UE) includes circuitry to perform a mobility state estimation (MSE) operation to determine an MSE state for the UE, and a receiver to receive, from a cell in a heterogeneous third generation partnership project (3GPP) network, mobility state information corresponding to movement of the UE within the heterogeneous 3GPP network. The circuitry is configured to update the MSE state based on the mobility state information received from the cell. The UE may also include a transmitter to communicate the updated MSE state to the cell.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 22, 2016
    Applicant: INTEL IP CORPORATION
    Inventors: Candy Yiu, Daniel Aley, Mo-Han Fong, Yujian Zhang
  • Publication number: 20160366722
    Abstract: Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 15, 2016
    Inventors: Youn Hyoung Heo, Yujian Zhang, Jong-Kae Fwu
  • Patent number: 9521693
    Abstract: Base Station (BS) and User Equipment (UE) apparatuses for configuring a Random Access CHannel (RACH), and methods thereof, are provided. The method for a BS to configure a RACH includes generating configuration information on RACH resources, transmitting the configuration information on the RACH resources to a UE, receiving a random access preamble multiplexed on a plurality of continuous RACH resources from the UE, extracting the random access preamble multiplexed on the plurality of continuous RACH resources, and detecting the extracted random access preamble. The method for a UE to configure a RACH includes receiving configuration information on RACH resources from a BS, selecting occupied RACH resources among a plurality of continuous RACH resources, generating a random access preamble, multiplexing the generated random access preamble on the selected RACH resources, and transmitting the random access preamble on the selected RACH resources to the BS.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Yujian Zhang, Xiaoqiang Li
  • Publication number: 20160360438
    Abstract: User Equipment (UE), computer readable media, and methods to modify communication channel measurement timing based on a mobility of the UE are disclosed. The UE may include circuitry configured to determine a plurality of signals from one or more cells, determine a first value for a first performance metric associated with a first cell of the one or more cells, wherein the first value is determined from a first measurement, select the first cell for a first communication based on the first value, determine first location information associated with the UE, determine, following the first measurement and using the first location information, that the UE is stationary, and delay, in response to the determination that the UE is stationary, a second measurement of the first performance metric. In various alternate embodiments, different measurement types may be used for mobility and channel quality determinations. In further embodiments, only measurements for unused channels may be delayed.
    Type: Application
    Filed: March 13, 2015
    Publication date: December 8, 2016
    Inventors: Candy YIU, Yang TANG, Rui HUANG, Yujian ZHANG
  • Patent number: 9509485
    Abstract: Systems and methods disclosed herein provide in-device co-existence interference avoidance for a wireless communication device in dual connectivity with a master node and a secondary node. Time-division multiplexing (TDM) assistance information sent by the wireless communication device is forwarded from the master node to the secondary node. The master node and/or the secondary node uses the TDM assistance information to determine a TDM solution for the in-device co-existence interference in the wireless communication device.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: November 29, 2016
    Assignee: Intel Corporation
    Inventors: Yujian Zhang, Satish C. Jha, Ali T. Koc, Youn Hyoung Heo, Kathiravetpillai Sivanesan, Rath Vannithamby
  • Patent number: 9496973
    Abstract: Embodiments of user equipment (UE) and method for handover enhancement using reference signal received quality (RSRQ) in a wireless network are generally described herein. In some embodiments, a UE adaptively selects handover initiation parameters based, at least in part, on a velocity of the UE. The UE may determine an RSRQ of a serving cell and an RSRQ of a target cell and may transmit a measurement report to a serving eNB for handover from the serving cell to the target cell when the target cell RSRQ exceeds the serving cell RSRQ in accordance with the selected handover initiation parameters. In some of these embodiments, the handover initiation parameters may include an offset value, such as an A3offset value, and a time-to-trigger (TTT) that comprise an A3offset-TTT pair.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 15, 2016
    Assignee: Intel Corporation
    Inventors: Candy Yiu, Yujian Zhang, Mo-Han Fong, Yuefeng Peng
  • Patent number: 9485738
    Abstract: A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: November 1, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-Hyoung Heo, Ju-Ho Lee, Yujian Zhang, Joon-Young Cho, Young-Bum Kim, Yong-Jun Kwak
  • Patent number: 9480029
    Abstract: Embodiments described herein relate generally to a communication between a user equipment (“UE”) and a plurality of evolved Node Bs (“eNBs”). A UE may be adapted to operate in a dual connected mode on respective wireless cells provided by first and second eNBs. The UE may be adapted to estimate respective power headroom (“PHR”) values associated with simultaneous operation on the first and second wireless cells. The UE may cause the first and second PHR estimates to be transmitted to both the first and second eNBs. The first and second eNBs may use these estimates to compute respective uplink transmission powers for the UE. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 25, 2016
    Assignee: INTEL IP CORPORATION
    Inventors: Kathiravetpillai Sivanesan, Ali T. Koc, Satish C. Jha, Rath Vannithamby, Yujian Zhang
  • Patent number: 9467819
    Abstract: A system and method for multicast servicing in a unicast subframe is disclosed. The method using a transmission station comprises the operation of setting up a multicast service on each of a plurality of mobile devices in a multicast group using a multicast cell radio network temporary identifier (MC-RNTI) with a common cell identifier (CID). The operation of allocating physical downlink shared data channel (PDSCH) resources for the multicast group using a physical downlink control channel (PDCCH) masked by the MC-RNTI follows.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 11, 2016
    Assignee: INTEL CORPORATION
    Inventors: Huaning Niu, Hujun Yin, Yujian Zhang, Geng Wu
  • Publication number: 20160286604
    Abstract: Embodiments of user equipment (UE) and methods for enhanced discontinuous reception (DRX) operations for inter eNB carrier aggregation (CA) in an LTE network are generally described herein. In some embodiments, a UE is configured to be served by multiple serving cells. The first set of the serving cells may be associated with a first eNB and a second set of serving cells may be associated with a second eNB. In these embodiments, DRX operations may be performed independently in multiple serving cells belonging to the different eNBs. Other embodiments for enhanced DRX operations are also described.
    Type: Application
    Filed: June 8, 2016
    Publication date: September 29, 2016
    Inventors: Youn Hyoung Heo, Yujian Zhang
  • Patent number: 9456415
    Abstract: Technology for partitioning small cell physical-layer cell identities (PCI) at a node in a heterogeneous network (HetNet) is disclosed. One method can include the node identifying at least one small cell PCI of a plurality of small cells in a macro cell. Each small cell PCI can be associated with a low power node (LPN) in the HetNet. The node can generate a small cell PCI list to include the at least one small cell PCI. The node can broadcast the small cell PCI list to a wireless device.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 27, 2016
    Assignee: INTEL CORPORATION
    Inventors: Yuefeng Peng, Yujian Zhang, Kamran Etemad, Yuan Zhu, Mo-Han Fong
  • Patent number: 9439223
    Abstract: Base Station (BS) and User Equipment (UE) apparatuses for configuring a Random Access CHannel (RACH), and methods thereof, are provided. The method for a BS to configure a RACH includes generating configuration information on RACH resources, transmitting the configuration information on the RACH resources to a UE, receiving a random access preamble multiplexed on a plurality of continuous RACH resources from the UE, extracting the random access preamble multiplexed on the plurality of continuous RACH resources, and detecting the extracted random access preamble. The method for a UE to configure a RACH includes receiving configuration information on RACH resources from a BS, selecting occupied RACH resources among a plurality of continuous RACH resources, generating a random access preamble, multiplexing the generated random access preamble on the selected RACH resources, and transmitting the random access preamble on the selected RACH resources to the BS.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: September 6, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Yujian Zhang, Xiaoqiang Li
  • Patent number: 9433019
    Abstract: Base Station (BS) and User Equipment (UE) apparatuses for configuring a Random Access CHannel (RACH), and methods thereof, are provided. The method for a BS to configure a RACH includes generating configuration information on RACH resources, transmitting the configuration information on the RACH resources to a UE, receiving a random access preamble multiplexed on a plurality of continuous RACH resources from the UE, extracting the random access preamble multiplexed on the plurality of continuous RACH resources, and detecting the extracted random access preamble. The method for a UE to configure a RACH includes receiving configuration information on RACH resources from a BS, selecting occupied RACH resources among a plurality of continuous RACH resources, generating a random access preamble, multiplexing the generated random access preamble on the selected RACH resources, and transmitting the random access preamble on the selected RACH resources to the BS.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Yujian Zhang, Xiaoqiang Li
  • Publication number: 20160234847
    Abstract: Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit up-link traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.
    Type: Application
    Filed: October 30, 2014
    Publication date: August 11, 2016
    Applicant: INTEL IP CORPORATION
    Inventors: Yujian Zhang, Youn Hyoung Heo
  • Publication number: 20160226632
    Abstract: A user equipment (UE) may receiving, from an evolved NodeB (eNB), configuration information related to a restriction that one or more radio bearers are transmitted only on a subset of serving cells used in carrier aggregation of a long term evolution (LTE), LTE-advanced (LTE-A), and or 5G wireless network. The UE may transmit the one or more radio bearers to the eNB on one or more serving cells of the subset of serving cells in response to receiving the configuration information.
    Type: Application
    Filed: July 17, 2015
    Publication date: August 4, 2016
    Applicant: Intel IP Corporation
    Inventors: Yujian ZHANG, Youn Hyoung HEO, Hong HE
  • Patent number: 9407302
    Abstract: A communication device is described comprising a message generator configured to generate a message indicating that a mobile terminal is to determine whether a transmitter of the mobile terminal has been active at a predetermined time and provide information which depends on the activity of the transmitter of the mobile terminal at the predetermined time and a transmitter configured to transmit the message.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 2, 2016
    Assignee: INTEL CORPORATION
    Inventors: Andreas Schmidt, Yujian Zhang, Ana Lucia Pinheiro
  • Patent number: 9398604
    Abstract: An apparatus may include a processor circuit and a communication scheduling module operable on the processor circuit to receive a first set of terminal information of a first terminal transceiver, and a second set of terminal information of a second terminal transceiver, determine whether the first and second terminal transceivers are co-located in a radio terminal based on the first and second sets of terminal information, and schedule first and second radio-frequency (RF) communications with the first and second terminal transceivers, respectively, of the radio terminal to reduce interference between the first and second communications when the first and second terminal transceivers are co-located within the radio terminal. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 19, 2016
    Assignee: INTEL CORPORATION
    Inventors: Yujian Zhang, Hujun Yin
  • Publication number: 20160198343
    Abstract: Technology for communicating security key information from a macro eNB is disclosed. Security key information associated with the macro evolved node B (eNB) may be determined. The security key information may be used to cipher information communicated at the first eNB. A small eNB may be identified at the macro eNB to generate the security key information associated with the macro eNB for ciphering information communicated at the second eNB. The security key information may be communicated, from the macro eNB, to the small eNB for inter-Evolved Universal Terrestrial Radio Access (EUTRA) evolved node B (eNB) carrier aggregation.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Youn Hyoung Heo, Yujian Zhang
  • Patent number: 9374783
    Abstract: Embodiments of user equipment (UE) and methods for enhanced discontinuous reception (DRX) operations for inter eNB carrier aggregation (CA) in an LTE network are generally described herein. In some embodiments, a UE is configured to be served by multiple serving cells. The first set of the serving cells may be associated with a first eNB and a second set of serving cells may be associated with a second eNB. In these embodiments, DRX operations may be performed independently in multiple serving cells belonging to the different eNBs. Other embodiments for enhanced DRX operations are also described.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 21, 2016
    Assignee: Intel Corporation
    Inventors: Youn Hyoung Heo, Yujian Zhang