Patents by Inventor Xiaolin Hou

Xiaolin Hou 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).

  • BASE STATION
    Publication number: 20210329682
    Abstract: For appropriately transmitting a delivery acknowledgement signal even in a case where at least one of a transmission timing and a resource of the delivery acknowledgement signal is flexibly set, a base station according to an aspect of the present disclosure includes a transmitting section that transmits downlink control information used for scheduling a downlink shared channel, a receiving section that receives a delivery acknowledgement signal for the downlink shared channel, and a control section that performs, when the delivery acknowledgement signal is transmitted using a downlink allocation index included in the downlink control information for each group determined based on an uplink control channel resource designated using the downlink control information, control so that different uplink control channel resources in same slot are not designated by the downlink control information.
    Type: Application
    Filed: July 30, 2018
    Publication date: October 21, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • Transmitting apparatus, receiving apparatus and radio communication method
    Patent number: 11153902
    Abstract: A terminal is disclosed including a transceiver that transmits or receives a transport block (TB) based on a downlink control information and a processor that applies a same symbol allocation across a plurality of slots when transmission or reception of the TB is carried out over the plurality of slots. In other aspects, a radio communication method for a terminal is also disclosed.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: October 19, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Keisuke Saito, Kazuaki Takeda, Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • USER EQUIPMENT
    Publication number: 20210321384
    Abstract: A user equipment includes a control unit that controls transmission or reception of a sidelink signal in which a first resource and a second resource are multiplexed in a same slot, wherein at least one of SLSS (Sidelink synchronization signal) or PSBCH (Physical Sidelink Broadcast Channel) is allocated in the first resource, and at least one of PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), and PSDCH (Physical Sidelink Discovery Channel) is allocated in the second resource; a reception unit that monitors the first resource, the second resource, or the first resource and the second resource; and a transmission unit that performs transmission using any one of the first resource, the second resource, and the first resource and the second resource.
    Type: Application
    Filed: August 10, 2018
    Publication date: October 14, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Huan Wang, Xiaolin Hou
  • User terminal and radio communication method
    Patent number: 11146366
    Abstract: The present invention is designed so that retransmission control is executed appropriately in smaller units than TBs (for example, in units of CBs, in units CBGs, etc.). A user terminal according to one aspect of the present invention has a receiving section that receives a downlink (DL) signal including one or more code blocks (CBs), and a control section that controls transmission of delivery acknowledgment information for the DL signal per CB or per code block group (CBG) including or one or more CBs, and a CB or a CBG where a negative acknowledgment (NACK) is indicated by the delivery acknowledgment information is retransmitted by using a numerology that is the same as or different from that of initial transmission.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: October 12, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou, Huiling Jiang
  • USER EQUIPMENT AND BASE STATION APPARATUS
    Publication number: 20210314097
    Abstract: A user equipment includes a receiving unit configured to receive a first signal of inter-terminal direct communication transmitted from a first user equipment, and information indicating a first resource for transmitting a HARQ (Hybrid Automatic Repeat Request) response corresponding to the first signal of inter-terminal direct communication transmitted from either one of a base station apparatus or the first user equipment; a control unit configured to determine the HARQ response based on a reception result of the first signal of inter-terminal direct communication; and a transmitting snit configured to transmit the determined HARQ response to the base station apparatus or the first user equipment, by using the first resource for transmitting the HARQ response.
    Type: Application
    Filed: July 17, 2018
    Publication date: October 7, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Yuki Matsumura, Kazuaki Takeda, Huan Wang, Xiaolin Hou
  • USER TERMINAL
    Publication number: 20210314990
    Abstract: For appropriately transmitting a delivery acknowledgement signal in a case where at least one of a transmission timing and a resource of the delivery acknowledgement signal is flexibly set, a user terminal according to an aspect of the present disclosure includes a receiving section that receives a downlink shared channel scheduled using downlink control information, a transmitting section that transmits a delivery acknowledgement signal for the downlink shared channel, and a control section that controls transmission of the delivery acknowledgement signal using a downlink allocation index included in the downlink control information for each group determined based on a transmission slot for an uplink control channel designated by the downlink control information or for each group determined based on an uplink control channel resource designated by the downlink control information.
    Type: Application
    Filed: July 30, 2018
    Publication date: October 7, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • USER TERMINAL AND RADIO COMMUNICATION METHOD
    Publication number: 20210315001
    Abstract: To appropriately perform communication even when configured grant-based UL transmission is configured, a user terminal according to an aspect of the present disclosure includes: a transmitting section that transmits a first demodulation reference signal (DMRS) for demodulating a first uplink shared channel scheduled by downlink control information and a second DMRS for demodulating a second uplink shared channel that is not scheduled by the downlink control information; and a control section that controls generation of a sequence of the first DMRS and a sequence of the second DMRS based on higher layer parameters configured separately.
    Type: Application
    Filed: August 10, 2018
    Publication date: October 7, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • User terminal and radio communication method
    Patent number: 11139942
    Abstract: A user terminal communicates by using a plurality of cells, including at least a given cell to use a first TTI and a second TTI having a shorter TTI length than the first TTI, and this user terminal has a receiving section that receives, in the given cell, first downlink control information that is transmitted by using the first TTI and/or second downlink control information that is transmitted by using the second TTI, and a control section that controls receipt of a downlink shared channel that is transmitted in another cell and/or transmission of an uplink shared channel, based on the first downlink control information and/or the second downlink control information.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 5, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Method for spread spectrum communication, user equipment and base station
    Patent number: 11139854
    Abstract: A method for spread spectrum communication, a user equipment and a base station are provided in embodiments of the present disclosure. The method for spread spectrum communication applied to a user equipment includes: selecting spreading sequences for a plurality of symbols of data to be transmitted in a set of spreading sequences, respectively, wherein spreading sequences selected for at least two symbols are different; spreading the data by using the selected spreading sequences; transmitting the spread data.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 5, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Qin Mu, Liu Liu, Wenjia Liu, Xiaolin Hou
  • User terminal and radio communication method
    Patent number: 11140669
    Abstract: The present invention is designed so that the transmission of A/Ns can be controlled properly when the reference value for the timing for transmitting signals is controlled in radio base stations and/or user terminals. A user terminal, according to the present invention, has a receiving section that receives a downlink (DL) shared channel, and a control section that controls transmission of retransmission control information in response to the DL shared channel. The control section controls the transmission of the retransmission control information based on a reference value that is configured for timing for transmitting the retransmission control information.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 5, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Liu Liu, Xiaolin Hou, Huiling Jiang
  • USER EQUIPMENT AND BASE STATION DEVICE
    Publication number: 20210306983
    Abstract: A user equipment includes a control unit configured to determine which of resource determination controls, scheduling type control or autonomous resource selection. type control, is to he used in device-to-device direct communication, based on a predetermined condition and a transmitting unit configured to transmit a message to another user equipment based on the determined resource determination control.
    Type: Application
    Filed: September 13, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Huan Wang, Xiaolin Hou
  • USER DEVICE AND BASE STATION DEVICE
    Publication number: 20210307032
    Abstract: A user device includes a transmission unit that transmits a first traffic to a second user device using a resource scheduled for sidelink by a base station device or a first user device, a reception unit that receives from the base station device or the first user device a sidelink pre-emption indication indicating that all or part of the resource scheduled for the sidelink is to be used for a second traffic, and a control unit that excludes a resource used for the second traffic from the resource for the sidelink used for transmitting the first traffic, based on the sidelink pre-emption indication.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Huan Wang, Xufei Zheng, Xiaolin Hou
  • USER TERMINAL AND RADIO COMMUNICATION METHOD
    Publication number: 20210307076
    Abstract: In order to assume an appropriate base station beam (ICI state) during a period after an RRC reconfiguration procedure and before MAC CE activation in future radio communication systems, one aspect of a user terminal of the present disclosure includes: a receiving section that receives a PDCCH (Physical Downlink Control Channel) after transmission of an RRC (Radio Resource Control) reconfiguration complete message; and a control section, when the RRC reconfiguration involves a random access procedure, assumes that a synchronization signal block or a channel state information reference signal identified during the random access procedure and the PDCCH are quasi-co-located.
    Type: Application
    Filed: August 3, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • BASE STATION AND USER TERMINAL
    Publication number: 20210306987
    Abstract: A base station of the present invention includes a transmitting section that transmits a plurality of pieces of downlink control information each. including a first field value to be used for control of a transmission power of an uplink control channel and a second field value to be used to determine a resource for the uplink control channel; and a control section that controls, in a case that second field values each corresponding to the second field value are configured to be a same value, configuration of first field values each corresponding to the first field value. With this, it is possible to appropriately control a transmission power of an uplink control channel.
    Type: Application
    Filed: July 20, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Shohei Yoshioka, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • USER TERMINAL AND RADIO COMMUNICATION METHOD
    Publication number: 20210306060
    Abstract: A user terminal according to one aspect of the present disclosure includes: a reception section that receives information related to a beam selection index; and a control section that selects a beam based on an index indicated by the information. According to one aspect of the present disclosure, it is possible to appropriately select a beam and report the beam.
    Type: Application
    Filed: August 3, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • USER TERMINAL
    Publication number: 20210307016
    Abstract: A user terminal according to an aspect of the present disclosure includes a receiving section that receives, in monitoring occasions with a certain period, downlink control information indicating a slot format for a certain cell, and a control section that determines the slot format for a slot or a symbol before a next monitoring occasion in a case where the certain cell is activated. This allows communication in TDD to be appropriately controlled.
    Type: Application
    Filed: July 17, 2018
    Publication date: September 30, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • INFORMATION TRANSMITTING AND RECEIVING METHODS, USER EQUIPMENT, AND BASE STATION
    Publication number: 20210297900
    Abstract: Embodiments of the present invention provide information transmitting and receiving methods, a user equipment, and a base station. The information transmitting method performed by the user equipment includes: receiving indication information, the indication information indicating sub-block sizes of a plurality of sub-blocks obtained by splitting an information block to be transmitted; splitting the information block to be transmitted into the plurality of sub-blocks according to the indication information; processing respective sub-blocks to generate transmission data, and transmitting the transmission data.
    Type: Application
    Filed: August 6, 2018
    Publication date: September 23, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Wenjia Liu, Runxin Wang, Xiaolin Hou
  • USER EQUIPMENT
    Publication number: 20210297830
    Abstract: A user equipment includes a reception unit that receives control information and data through inter-terminal direct communication; and a control unit that determines, based on the control information or the data, whether the inter-terminal direct communication is unicast, groupcast, or broadcast.
    Type: Application
    Filed: August 9, 2018
    Publication date: September 23, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Huan Wang, Xiaolin Hou
  • USER TERMINAL AND BASE STATION
    Publication number: 20210298037
    Abstract: A user terminal according to one aspect of the present disclosure includes: a transmission section that transmits a CSI reporting using at least one specific subband that is part of a plurality of subbands; and a control section that performs at least one of reception of configuration information that indicates the specific subband, and transmission of reporting information that indicates the specific subband. According to one aspect of the present disclosure, it is possible to appropriately perform a CSI reporting using subbands.
    Type: Application
    Filed: July 12, 2018
    Publication date: September 23, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Huiling Li, Jing Wang, Xiaolin Hou
  • BASE STATION AND RADIO COMMUNICATION METHOD
    Publication number: 20210297191
    Abstract: According to one aspect of the present disclosure, a base station includes a transmitting section that transmits an uplink control channel (PUCCH: Physical Uplink Control Channel) repetition and configuration information for configuring a dynamic hybrid automatic repeat reQuest acknowledgement (HARQ-ACK) codebook to a user terminal, and a control section that controls scheduling of at least one of downlink control information and a downlink shared channel for the user terminal so that the user terminal uses one PUCCH format or a codebook that does not exceed a given codebook size in a given period to perform the PUCCH repetition. According to one aspect of the present disclosure, it is possible to appropriately transmit the UCI even when the PUCCH repetition is used.
    Type: Application
    Filed: July 30, 2018
    Publication date: September 23, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Shaozhen Guo, Xiaolin Hou