Patents by Inventor Yuantao Zhang

Yuantao 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: 10897333
    Abstract: A method for reporting channel state information, user equipment and base station. Including receiving, by user equipment, an indication signaling transmitted by a base station, the indication signaling comprising identification information for triggering report of aperiodic channel state information; determining a measurement set of the report of the aperiodic channel state information according to the identification information; and reporting corresponding channel state information to the base station according to the measurement set.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 19, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Yi Zhang, Yi Wang, Yuantao Zhang, Hua Zhou
  • Patent number: 10873968
    Abstract: Method, apparatus and computer program product are disclosed for transmission in a wireless network. A method comprises: transmitting an uplink data block using grant free; detecting a downlink channel after a predefined timing or in a predefined time window; and determining whether the downlink channel being for a user equipment, wherein the uplink data block comprises information for identifying the user equipment identity, and a part of the user equipment identity is used to scramble a predefined part of the user equipment specific downlink channel.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: December 22, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Yuantao Zhang, Yan-Ji Zhang, Yi Zhang
  • Publication number: 20200344698
    Abstract: A user equipment that supports a first set of beams accumulates transmit power control (TPC) commands to generate an accumulated correction factor during communication between the user equipment and a base station that supports a second set of beams. The user equipment is configured to use a first subset of the first set of beams during the communication and the base station is configured to use a second subset of the second set of beams during the communication. The user equipment detects a change in the first subset or the second subset. The user equipment resets the accumulated correction factor in response to detecting the change. In some cases, the user equipment generates a plurality of correction factors for a corresponding plurality of closed-loop processes. The user equipment resets some or all of the plurality of correction factors in response to detecting the change.
    Type: Application
    Filed: November 10, 2017
    Publication date: October 29, 2020
    Inventors: Dan PARK, Yuantao ZHANG, Yi ZHANG
  • Publication number: 20200305198
    Abstract: A method and apparatus may include receiving configuration signaling from a network node to use a resource pool. The apparatus transmits using contention-based transmission. The method also includes selecting a preamble zone combination from the resource pool. The method may also include transmitting a preamble to the network node using the selected preamble zone combination. A preamble sequence index is used to identify the user equipment.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 24, 2020
    Inventors: Hongchao LI, Klaus Ingemann PEDERSEN, Yuantao ZHANG, Jingyuan SUN, Zhuyan ZHAO, Deshan MIAO
  • Patent number: 10778374
    Abstract: A method is provided including receiving, by a user equipment from a wireless network, an indication of a plurality of contention based transmission occasions and a monitoring window size that the user equipment monitors for feedback for the contention based transmission; determining, by a user equipment of a wireless network, whether an amount of user data can be transmitted on one or more of contention based transmission occasions; performing one or more contention based transmissions during the one or more of the contention based transmission occasions based at least on the determination; and monitoring for feedback for each of the performed contention based transmissions based at least on the monitoring window size, wherein the feedback includes feedback for each contention based transmission in a feedback mapping window.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 15, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Yanji Zhang, Chunli Wu, Yuantao Zhang
  • Patent number: 10763985
    Abstract: REGs are mapped to REs for UEs to all available OFDM symbols for a subframe, which includes a time-frequency resource space including the OFDM symbols in time and subcarriers in frequency. The mapping is performed to form a portion of a control channel and the available symbols are OFDM symbols not used for another control channel. The REs are populated in the portion of the control channel with control information for the UEs using corresponding ones of the REGs. The mapping and the populating are performed to form a complete control channel over one or more subframes, wherein the complete control channel can span a single subframe or multiple subframes. The one or more subframes with the complete control channel are transmitted. A UE will blind decode received subframe(s) in order to determine the control information, which is to be subsequently used by the UE to receive or transmit data.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: September 1, 2020
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Rapeepat Ratasuk, Shi Jin, YuanTao Zhang
  • Publication number: 20200236657
    Abstract: In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform at least the following: receive indication of bandwidth allocation for grant-free preamble transmission, receive indication of bandwidth allocation for grant-free resources, wherein the bandwidth allocated for grant-free preamble transmission is the same or larger than the bandwidth allocated for grant-free resources, receive configuration of one or more preamble repetition units, and allocate resources for grant-free preamble and data transmissions, wherein the grant-free preamble is allocated in the configured one or more preamble repetition units and within the bandwidth allocated for grant-free preamble transmission, and data is allocated in the grant-free resources.
    Type: Application
    Filed: March 20, 2017
    Publication date: July 23, 2020
    Inventors: Yuantao ZHANG, Yi ZHANG
  • Publication number: 20200204316
    Abstract: Various communication systems may benefit from an improved transmission of a sounding reference signal. For example, certain communication systems may benefit from an enhanced sounding reference signal transmission via antenna switching or repetition. A method, in certain embodiments, may include receiving a signaling indication at a user equipment from a network entity. The signaling indication may indicate a configuration for sounding reference signal transmission via at least one of antenna switching or repetition using a resource group. The resource group may comprise a plurality of resources that are either adjacent or have a limited time interval between at least two of the plurality of resources within the resource group. The method may also include transmitting the sounding reference signal from the user equipment to the network entity via at least one of the antenna switching or the repetition using the resource group.
    Type: Application
    Filed: August 11, 2017
    Publication date: June 25, 2020
    Inventors: Yi ZHANG, Yuantao ZHANG, Mihai ENESCU
  • Publication number: 20200186306
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses for uplink transmission without an uplink grant. In example embodiments, a method implemented in a terminal device in a communication system is presented. According to this method, the terminal device determines a redundancy version (RV) pattern for a plurality of uplink transmissions. The RV pattern indicates a plurality of RV indices. At least one RV index in the respective plurality of RV indices is periodic in the RV pattern. The terminal device determines coded bits to be transmitted in the plurality of uplink transmissions based at least in part on the RV pattern. The terminal device transmits the coded bits to the network device in at least one transmission of the plurality of uplink transmissions without an uplink grant.
    Type: Application
    Filed: September 11, 2017
    Publication date: June 11, 2020
    Inventors: Jingyuan SUN, Yuantao ZHANG, Zhuyan ZHAO, Hong ZHOU
  • Publication number: 20200178180
    Abstract: There is a method comprising determining a beamforming configuration for a time period for reception of uplink data from a user device, determining uplink power control information based on the determined beamforming configuration and providing an indication of the determined uplink power control information to the user device for use in determining uplink transmit power for the time period.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 4, 2020
    Inventors: Yi Zhang, Yuantao Zhang, De Shan Miao
  • Patent number: 10667266
    Abstract: Various communication systems may benefit from appropriate configuration of available bandwidth. These and other communication systems, such as wireless communication systems, may benefit from resource indication for a larger channel bandwidth. One example is further enhanced machine type communication. A method can include determining, by a radio network node, a bandwidth for allocation to a user equipment. The allocated bandwidth can include resources in a single narrowband or a plurality of narrowbands. The method can also include indicating to the user equipment the single narrowband or the plurality of narrowbands and allocated resources in the single narrowband or the plurality of narrowbands.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: May 26, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Chunhai Yao, Yuantao Zhang, Rapeepat Ratasuk
  • Publication number: 20200092805
    Abstract: A method comprising: configuring a user equipment in a low activity state to operate according to a grant-free uplink transmission scheme; and in response to detecting at least one condition, scheduling a discontinuous reception state at the user equipment, during which the user equipment is configured to monitor for one or more messages intended for the user equipment.
    Type: Application
    Filed: December 22, 2016
    Publication date: March 19, 2020
    Inventors: Yanji ZHANG, Mikko SAILY, Yuantao ZHANG
  • Patent number: 10582452
    Abstract: A method and an apparatus are disclosed, wherein a configuration of at least one channel monitoring related timer is defined such that the effective value of the channel monitoring related timer is mapped to a coverage enhancement CE level. The apparatus performs monitoring of downlink control channel sub-frames transmitted from a network element to a terminal device, according to said configuration of the channel monitoring related timer.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: March 3, 2020
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Chunli Wu, Yanji Zhang, Yuantao Zhang, Benoist Pierre Sebire
  • Publication number: 20200068606
    Abstract: Method, apparatus and computer program product are disclosed for transmission in a wireless network. A method comprises: transmitting an uplink data block using grant free; detecting a downlink channel after a predefined timing or in a predefined time window; and determining whether the downlink channel being for a user equipment, wherein the uplink data block comprises information for identifying the user equipment identity, and a part of the user equipment identity is used to scramble a predefined part of the user equipment specific downlink channel.
    Type: Application
    Filed: November 14, 2016
    Publication date: February 27, 2020
    Inventors: Yuantao ZHANG, Yan-Ji ZHANG, Yi ZHANG
  • Patent number: 10485003
    Abstract: Methods, apparatus and computer program products are disclosed for determining transmission parameters in a wireless network. A method comprises: receiving transmission configuration information used by a network element for determining transmission parameters, wherein the transmission configuration information comprises a first set of parameters comprising at least a first repetition level set index, a first repetition level index, a first resource allocation and a first transport block size index, or a second set of parameters comprising at least a second repetition level index, a second resource allocation, and a second transport block size index, or a third set of parameters comprising at least a modulation and coding scheme level index, a third resource allocation and a third transport block size index; determining transmission parameters used by the network element based at least in part on the transmission configuration information.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 19, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Yuantao Zhang, Rapeepat Ratasuk, Chun Hai Yao, Yan Ji Zhang
  • Publication number: 20190349864
    Abstract: A technique includes selecting, by a user device independently for each of a plurality of sounding reference signal resources, an uplink data channel power control parameter set for an uplink data channel beam pair to be used to adjust a sounding reference signal transmission power for a sounding reference signal beam pair, adjusting, by the user device for each sounding reference signal resource based on a selected uplink data channel power control parameter set, asounding reference signal transmission power for a sounding reference signal, and transmitting, by the user device, each of a plurality of power-adjusted sounding reference signals via a corresponding sounding reference signal resource and a corresponding sounding reference signal beam pair.
    Type: Application
    Filed: January 4, 2017
    Publication date: November 14, 2019
    Inventors: Yi Zhang, Yuantao Zhang, Deshan Miao, Mihai Enescu
  • Publication number: 20190319682
    Abstract: A technique is provided for receiving, by a user device from a base station, a first reference signal via a plurality of base station transmit beams; selecting, based on the first reference signal received via the plurality of transmit beams, beam indices for a subset of correlation coefficients to be reported to the measurement base station; receiving, by the user device from the base station, a second reference signal via a plurality of the transmit beams; determining, based on the selected beam indices, the subset of correlation coefficients of a correlation matrix based on the second reference signal received via each of the plurality of transmit beams; and reporting, by the user device to the base station, the subset of correlation coefficients.
    Type: Application
    Filed: December 23, 2015
    Publication date: October 17, 2019
    Inventors: Yi Zhang, Yuantao Zhang, Deshan Miao
  • Publication number: 20190297647
    Abstract: Various communication systems may benefit from appropriately configured feedback. For example, certain embodiments may benefit from single cell point-to-multipoint feedback methods and mechanisms. A method can include determining by a user equipment, that a data transport block was not received. The method can also include feeding back, by the user equipment, a preamble indicating a measured downlink channel state information responsive to the determination that the data transport block was not received.
    Type: Application
    Filed: November 4, 2016
    Publication date: September 26, 2019
    Applicant: Nokia Technologies Oy
    Inventors: Yuantao Zhang, Yanji Zhang
  • Publication number: 20190280821
    Abstract: A method is provided including receiving, by a user equipment from a wireless network, an indication of a plurality of contention based transmission occasions and a monitoring window size that the user equipment monitors for feedback for the contention based transmission; determining, by a user equipment of a wireless network, whether an amount of user data can be transmitted on one or more of contention based transmission occasions; performing one or more contention based transmissions during the one or more of the contention based transmission occasions based at least on the determination; and monitoring for feedback for each of the performed contention based transmissions based at least on the monitoring window size, wherein the feedback includes feedback for each contention based transmission in a feedback mapping window.
    Type: Application
    Filed: October 31, 2017
    Publication date: September 12, 2019
    Applicant: Nokia Technologies Oy
    Inventors: Yanji Zhang, Chunli Wu, Yuantao Zhang
  • Publication number: 20190273576
    Abstract: Various communication systems may benefit from improved transmissions. For example, a network transmission may benefit from improved throughput and efficiency in non-schedule multiple access communications. A method includes selecting at a user equipment operating in a non-scheduled access scheme at least one of a first codeword or a second codeword based on an amount of data. The data in the non-scheduled access scheme can be spread according to a spreading sequence. The method also includes determining a transport block size for at least one of the first codeword or the second codeword. In addition, the method includes transmitting the data from the user equipment to a network node using at least one of the first codeword or the second codeword.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 5, 2019
    Inventors: Yuantao Zhang, Zhuyan Zhao, Jingyuan Sun, Hongchao Li, Deshan Miao, Yanji Zhang, Klaus Ingemann Pedersen, Mihai Enescu