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).

  • Patent number: 10708853
    Abstract: A method for low overhead system information acquisition (LOSIA) is disclosed. The LOSIA method includes several techniques for transmitting common channels in a next generation Radio Access Technology (xRAT). Instead of transmitting system information in a periodic, static, cell-specific, wideband manner, the transmission is triggered by user equipment in an “on demand” manner. The LOSIA method allows the network to control the overhead, bandwidth, and periodicity, as well as other characteristics. The LOSIA method employs several different techniques to trigger the information upon which the network can act, for example, by transmitting different payloads depending on the received trigger.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: July 7, 2020
    Assignee: Apple Inc.
    Inventors: Ralf Bendlin, Gang Xiong, Jong-Kae Fwu, Yujian Zhang
  • Publication number: 20200196374
    Abstract: An apparatus of an evolved Node B or a Fifth Generation Node B comprises one or more baseband processors to generate an RRCConnectionReconfiguration message to include an information element (IE) to configure a user equipment (UE) to receive data from a Long-Term Evolution node and from a New Radio node in a unified split bearer configuration and encode data to be transmitted to the UE via a master cell group bearer, a secondary cell group bearer, or a unified split bearer. The baseband processors further are to encode an IE of an RRCReconfiguration message to configure a data radio bearer as a Packet Data Convergence Protocol and higher layers configuration coupled with one or more logical channels of radio link control and below, and to configure a change between a single connectivity bearer to multi-connectivity bearer by configuring or releasing one or more of the logical channels.
    Type: Application
    Filed: June 14, 2018
    Publication date: June 18, 2020
    Applicant: Intel Corporation
    Inventors: Seau S. Lim, Sudeep K. Palat, Yujian Zhang, Youn Hyoung Heo, Richard Burbidge
  • Publication number: 20200145862
    Abstract: An embodiment for user equipment that receives a plurality of measurement gap repetition patterns from a network. Each measurement gap repetition pattern may be assigned to a different frequency of the network. The plurality of measurement gap repetition patterns may include skipping measurement patterns. Further embodiments may include the user equipment receiving a repetition period in a measurement object frame or receiving a plurality of measurement gap repetition patterns in which the measurement gaps are non-colliding with measurement gaps of other repetition patterns assigned to the user equipment.
    Type: Application
    Filed: October 8, 2019
    Publication date: May 7, 2020
    Inventors: Candy Yiu, Yang Tang, Yujian Zhang, Rui Huang
  • Patent number: 10644398
    Abstract: An antenna for generating an arbitrarily directed Bessel beam, including a beam-forming plane and a feeding horn, the beam-forming plane is a dual-layer dielectric substrate structure having a beam focusing function, including: a printed circuit bottom layer, a high-frequency dielectric substrate lower layer, a printed circuit middle layer, a high-frequency dielectric substrate upper layer, and, a printed circuit upper layer; the printed circuit bottom layer, the high-frequency dielectric substrate lower layer, the printed circuit middle layer, the high-frequency dielectric substrate upper layer, and the printed circuit upper layer are co-axially stacked from the bottom to the top: the beam-forming plane is entirely divided into periodically arranged beam-forming units by a plurality of meshes, and each beam-forming unit consists of printed circuit upper, middle and lower metal patches of which centers are on the same longitudinal axis, the high-frequency dielectric substrate lower layer and the high-frequenc
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: May 5, 2020
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Yujian Cheng, Yichen Zhong, Renbo He, Yan Liu, Yong Fan, Kaijun Song, Bo Zhang, Xianqi Lin, Yonghong Zhang
  • Publication number: 20200136684
    Abstract: Embodiments have a master eNB with a control plane and optional data plane to user equipment and a secondary eNB with a data plane to the user equipment. The user equipment thus uses both the master eNB and the secondary eNB for data communications while receiving control information from only the master eNB. The master eNB and secondary eNB are connected with an X2 interface. When the secondary eNB desires to refresh its security key, it informs the master eNB using the X2 interface. The master eNB then uses its control plane with the user equipment to initiate a security key refresh for the secondary eNB.
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Inventors: Yujian Zhang, Youn Hyoung Heo, Achim Luft
  • Publication number: 20200128464
    Abstract: User equipment (UE), an enhanced NodeB (eNB) and method of reducing handover latency are generally described. The UE may transmit measurement feedback to the eNB based on control signals. The UE may receive a reconfiguration message from the eNB or another eNB to the UE is attached. The reconfiguration message may contain reconfiguration information indicating whether or not a physical layer or layer 2 of the UE is to be reconfigured and/or a security key is to be updated. The reconfiguration information may be dependent on whether the handover is between eNBs controlled by a same entity and/or whether the handover comprises an intra-frequency transition. The UE or eNB may initiate handover of the UE. During handover the UE may avoid physical layer or layer 2 reconfiguration or the security key update. The security key and data for the UE may be provided directly between the eNBs.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 23, 2020
    Inventors: Yujian Zhang, Mo-Han Fong, Pingping Zong, Alexei Davydov
  • Patent number: 10631190
    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: Grant
    Filed: June 22, 2018
    Date of Patent: April 21, 2020
    Assignee: Apple Inc.
    Inventors: Youn Hyoung Heo, Yujian Zhang, Jong-Kae Fwu
  • Publication number: 20200107278
    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: Application
    Filed: October 17, 2018
    Publication date: April 2, 2020
    Inventors: KATHIRAVETPILLAI SIVANESAN, ALI T. KOC, SATISH C. JHA, RATH VANNITHAMBY, YUJIAN ZHANG
  • Patent number: 10602506
    Abstract: 5G methods and architectures to determine active SCells and their bandwidth parts (BWP) used in carrier aggregation (CA) are disclosed in which activating a BWP for an active SCell is performed initially according to a default value provided in initial radio resource control (RRC) messaging. After initialization, SCells and the SCell BWPs used by the user equipment (UE) are activated by RRC messaging, downlink control information (DCI) or dedicated medium access control (MAC) control elements (MAC CEs) with the initial BWP used for an activated SCell being a default value provided during initialization.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 24, 2020
    Assignee: Apple Inc.
    Inventors: Yujian Zhang, Jeongho Jeon, Youn Hyoung Heo, Candy Yiu, Bharat Shrestha
  • Patent number: 10602511
    Abstract: In an embodiment, an apparatus to be employed in a user equipment (UE) is described. The apparatus includes configuration circuitry operable to determine, based on one or more configuration information messages, a measurement gap for a master evolved Node B (MeNB) that is operable to provide a master cell group (MCG) that is asynchronous with a secondary cell group (SCG) of a secondary evolved Node B (SeNB), wherein subframe boundaries of the MCG are different from subframe boundaries of the SCG; and radio frequency (RF) control circuitry operable to cause RF circuitry to be tuned, at a beginning of the measurement gap based on a subframe boundary of the MCG, to start inter-frequency measurements, wherein the RF circuitry is to be used to transmit or receive data in a serving cell of the MCG and in a serving cell of the SCG. Other embodiments are also described and claimed.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 24, 2020
    Assignee: Intel IP Corporation
    Inventors: Rui Huang, Yang Tang, Candy Yiu, Yujian Zhang
  • Publication number: 20200084263
    Abstract: It involves the field of power trading technology and a method for microservice transformation of power trading function comprising the following steps: (1) divide the function in extranet trading cloud into many multiple individual micro services and divide the function in intranet trading cloud into multiple individual micro services; (2) register a node information for each individual micro service in service registry when service deployment starts; (3) extranet users and intranet users enter into extranet trading cloud and intranet trading cloud respectively through PC terminal or mobile terminal, obtain the actual network address that needs to be served from service registry, send a request to the requested service, and perform related business operation.
    Type: Application
    Filed: December 22, 2017
    Publication date: March 12, 2020
    Inventors: LIN CHENG, HAINING WANG, XIAN ZHANG, CHUNCHENG GAO, YONGHUI LIU, YIN FANG, SHUHONG SHI, YONG DAI, LI TAO, CHUNYAN WANG, MINGZHU YUAN, LEI WANG, TAO WANG, JIE LIU, XIAN ZHAO, XIANG TAN, NING YANG, SHOUBAO LI, PEIYU XI, QIAN ZHANG, DONG LIU, WUJUN DONG, WENTAO LV, SHULU WAN, WEI WANG, XIAOPENG YUAN, JUNLIANG LV, LIN ZHANG, XIN CHANG, YUJIAN WU
  • Publication number: 20200081898
    Abstract: The invention involves the field of power trading and especially involves a method for construction of power trading index system based on big data technology. Main steps are as follows: 1. data acquisition; 2. construction of index system: construction of index system is mainly based on cloud focus evaluation method to solve the problem of variables transformation and make data analysis through high concurrency distributed computing power of Spark memory access; 3. index calculation: adopt objective weighting approach to determine the weight of each index after index configuration and then adopt cloud focus evaluation method to calculate the weighted deviation of each index; store final evaluation result of each index into HDFS database after Spark calculation; 4. index display.
    Type: Application
    Filed: December 22, 2017
    Publication date: March 12, 2020
    Inventors: HAINING WANG, LIN CHENG, YONGHUI LIU, SHUHONG SHI, XIAN ZHANG, CHUNCHENG GAO, YIN FANG, YONG DAI, LI TAO, MINGZHU YUAN, LEI WANG, TAO WANG, JIE LIU, XIAN ZHAO, XIANG TAN, NING YANG, SHOUBAO LI, PEIYU XI, QIAN ZHANG, CHUNYAN WANG, DONG LIU, WUJUN DONG, WENTAO LV, SHULU WAN, WEI WANG, XIAOPENG YUAN, JUNLIANG LV, LIN ZHANG, XIN CHANG, YUJIAN WU
  • Publication number: 20200076086
    Abstract: A shared-aperture antenna includes a first copper metal layer; a second copper metal layer; and a dielectric substrate layer sandwiched between the first copper metal layer and the second copper metal layer. The dielectric substrate layer includes a plurality of metallized vias. The first copper metal layer is in communication with the second copper metal layer via the plurality of metallized vias. The plurality of metallized vias includes first metallized vias forming an inner circular ring and second metallized vias forming an outer circular ring with respect to the center of the antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, and the first metallized vias form a substrate integrated waveguide (SIW) circular cavity slot antenna. The first copper metal layer, the dielectric substrate layer, the second copper metal layer, the first metallized vias and the second metallized vias form a coaxial cavity slot antenna.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventors: Yujian CHENG, Yanran DING, Jinfan ZHANG, Chunxu BAI, Yong FAN, Kaijun SONG, Xianqi LIN, Bo ZHANG
  • Publication number: 20200029390
    Abstract: A centralized RAN architecture that includes lower layer transmission nodes (referred to as distributed units (DUs) herein) that connect to an upper layer RAN node (referred to as a centralized unit (CU) herein). A centralized RAN architecture may include a functional split, between the CU and DU, corresponding to the Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) layers. In one embodiment, a CU may store copies of downlink PDCP PDUs that are transmitted to a first DU. The CU may retransmit, to a second DU, those of the PDCP PDUs which were previously transmitted to the source DU but have not been acknowledged as successfully delivered by the source DU.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 23, 2020
    Inventors: Jaemin Han, Yujian Zhang, Alexander Sirotkin, Xu Zhang, Yifan Yu, Min Huang, Feng Yang, Sudeep Palat
  • Publication number: 20200022210
    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: July 23, 2019
    Publication date: January 16, 2020
    Inventors: Youn Hyoung Heo, Yujian Zhang
  • Publication number: 20200008270
    Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH), wherein a cyclic redundancy check (CRC) of the PDCCH is scrambled by a radio network temporary identifier (RNTI). In some cases, if the RNTI that scrambles the PDCCH is a modulation coding scheme (MCS) cell RNTI (MCS-C-RNTI), cell RNTI (C-RNTI), or a configured scheduling RNTI (CS-RNTI), the UE may determine that: one or more PT-RSs are present in the PDSCH, a time density parameter of the PT-RSs is equal to one, and a frequency density of the PT-RSs is equal to two.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 2, 2020
    Inventors: Yushu Zhang, Gang Xiong, Yujian Zhang, Guotong Wang
  • Patent number: 10523286
    Abstract: Embodiments have a master eNB with a control plane and optional data plane to user equipment and a secondary eNB with a data plane to the user equipment. The user equipment thus uses both the master eNB and the secondary eNB for data communications while receiving control information from only the master eNB. The master eNB and secondary eNB are connected with an X2 interface. When the secondary eNB desires to refresh its security key, it informs the master eNB using the X2 interface. The master eNB then uses its control plane with the user equipment to initiate a security key refresh for the secondary eNB.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 31, 2019
    Assignee: Intel IP Corporation
    Inventors: Yujian Zhang, Youn Hyoung Heo, Achim Luft
  • Publication number: 20190387578
    Abstract: A User Equipment (UE) and a Radio Access Network (RAN) node may be configured to use multiple Scheduling Request (SR) configurations. A SR configuration may indicate to radio resources to be used to communicate a SR to the RAN node. The RAN node may provide UE with information associating logical channels to SR configurations. When the UE has data to transmit to the RAN node, the UE may determine the logical channel corresponding to the data, determine the SR configuration corresponding to the logical channel, and communicate a SR to the RAN node in accordance with the SR configuration. Upon receiving the SR, the RAN node determine the SR configuration used to transmit the SR and in turn determine the logical channel for which the SR was transmitted. The RAN node may then transmit an Uplink (UL) grant for the logical channel to the UE.
    Type: Application
    Filed: June 15, 2018
    Publication date: December 19, 2019
    Inventors: Bharat Shrestha, Gang Xiong, Yujian Zhang, Debdeep Chatterjee, Sergey Panteleev, Joonyoung Cho, Youn Hyoung Heo
  • Publication number: 20190387424
    Abstract: A secondary node (SN) in evolved universal mobile telecommunications system terrestrial radio access network new radio-dual connectivity (EN-DC) with a master node (MN) can directly provide measurement configuration and receive measurement reports from a UE and/or coordinate measurement configuration and reporting with the MN. For example, only one measurement object configuration is allowed for a frequency, but both MN and SN can provide measurement reporting configurations on the same measurement object. The UE can send measurement reports for the same measurement object to both MN and SN or the node that configured the reporting criteria configuration. In another embodiment, only one node provides the reporting configuration but configures the UE to provide reporting to one node or both MN and SN.
    Type: Application
    Filed: March 20, 2018
    Publication date: December 19, 2019
    Applicant: INTEL CORPORATION
    Inventors: Candy Yiu, Sudeep K. Palat, Seau S. Lim, Yujian Zhang
  • Patent number: D872541
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 14, 2020
    Assignee: Heshan Aohong Industry Co., Ltd.
    Inventor: Yujian Zhang