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).

  • Publication number: 20220337357
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives downlink control information for releasing a plurality of semi-persistent schedulings (SPSs); and a control section that performs control of including a valid Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) corresponding to the downlink control information at at least one of a plurality of positions of HARQ-ACKs corresponding to downlink shared channel (Physical Downlink Shared Channel (PDSCH)) reception of the plurality of SPSs in a semi-static HARQ-ACK codebook. According to an aspect of the present disclosure, the HARQ-ACK codebook can be appropriately determined even when joint SPS release is used.
    Type: Application
    Filed: September 17, 2019
    Publication date: October 20, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Xiaohong Zhang, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • Patent number: 11477738
    Abstract: Provided are a method and device for uplink power control. A user terminal performing the method includes: a receiving unit configured to receive signature information for the user terminal from a base station; and a control unit configured to determine a transmission power of the user terminal according to the received signature information.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 18, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Runxin Wang, Wenjia Liu, Xiaolin Hou, Kazuaki Takeda, Daiki Takeda
  • Publication number: 20220329312
    Abstract: A terminal according to one aspect of the present disclosure includes a transmitting section that transmits first information to notify occurrence of beam failure and second information related to at least one of a cell with the beam failure detected and a new candidate beam, and a control section that performs, when transmission of the second information is performed after the first information is triggered, at least one of cancellation of the triggered first information and stopping of a timer started based on transmission of the first information.
    Type: Application
    Filed: October 2, 2019
    Publication date: October 13, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Patent number: 11469926
    Abstract: Provided are a method for transmitting signals and corresponding terminals, and base stations, where the method for transmitting signals is performed by a terminal in a communication system. The method includes determining, whether to transmit an additional reference signal to a base station in the communication system according to information on channel conditions of the terminal; transmitting a main reference signal to the base station, where the main reference signal is used for channel estimation between the terminal and the base station; and when determining to transmit an additional reference signal to the base station, transmitting an additional reference signal to the base station according to configuration information of the additional reference signal.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 11, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Dongbo Feng, Xiangming Li, Neng Ye, Wenjia Liu, Xiaolin Hou, Runxin Wang, Liu Liu
  • Patent number: 11470626
    Abstract: Transmission of a plurality of items of UL data and/or a plurality of pieces of UCI having different requirements is appropriately controlled. A user terminal according to the present invention includes: a transmission section that transmits first Uplink Control Information (UCI) and/or first UL data by using a first Uplink (UL) data channel, and/or transmits second UCI and/or second UL data by using a second UL data channel; and a control section that, when at least part of a scheduled duration of the second UL data channel overlaps a transmission timing of the first UCI and/or the first UL data, controls transmission of the first UCI and/or the first UL data.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 11, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11470631
    Abstract: To appropriately perform a Beam Failure Recovery (BFR) procedure even when communication is performed by using a plurality of transmission reception points in a future radio communication system, one aspect of a user terminal according to the present disclosure includes: a receiving section that receives one or more pieces of downlink control information and a first reference signal for beam failure detection, the one or more pieces of downlink control information being used to schedule downlink shared channels transmitted from a plurality of transmission reception points; and a control section that detects a beam failure of a transmission reception point associated with the first reference signal.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: October 11, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20220321303
    Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines a last DCI format associated with a specific group index from detected downlink control information (DCI) formats corresponding to transmission of an uplink control channel of a same slot; and a transmitting section that transmits the uplink control channel by using a resource corresponding to the last DCI format. According to one aspect of the present disclosure, HARQ-ACK control can be suitably performed even when multi-TRPs are used.
    Type: Application
    Filed: June 6, 2019
    Publication date: October 6, 2022
    Applicant: NTT DOCOMO,INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Publication number: 20220322365
    Abstract: A terminal includes a transmitter that transmits a second signal specifying a resource for an initial transmission of a first signal on a sidelink; and a controller that selects, reserves, or pre-reserves a resource for the initial transmission of the first signal on the sidelink and at least one of one or more resources for one or more retransmissions of the first signal on the sidelink.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 6, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Yanru Wang, Jing Wang, Xiaolin Hou
  • Publication number: 20220322420
    Abstract: A terminal is disclosed including a reception section that receives a higher layer parameter on a configuration of media access control (MAC); and a control section that ignores an uplink (UL) grant for which a configuration on prioritization is performed by the higher layer parameter, when the UL grant is not a prioritized UL grant in a case of retransmission in MAC. In other aspects, a radio communication method and a radio communication system are also disclosed.
    Type: Application
    Filed: October 3, 2019
    Publication date: October 6, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Tianyang Min, Lihui Wang, Xiaolin Hou
  • Publication number: 20220322410
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a plurality of downlink shared channels (Physical Downlink Shared Channels (PDSCHs)) on the basis of one piece of downlink control information, and a control section that judges that a default transmission configuration indication state (TCI state) applied to the plurality of the PDSCHs corresponds to a TCI state corresponding to a code point in a TCI field for the downlink control information. According to one aspect of the present disclosure, it is possible to perform DL communication preferably even when multiple panels/TRPs are used.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 6, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Patent number: 11463225
    Abstract: To control UL transmission properly even when uplink data and demodulation reference signals are transmitted using short TTIs, a user terminal according to one aspect of the present invention has a transmission section that transmits a UL signal and a reference signal for use for demodulating the UL signal, and a control section that controls the allocation of the UL signal and the reference signal, and, when UL signals are allocated to a plurality of contiguous predetermined time intervals (sTTIs), respectively, the control section allocates the UL signal and the reference signal for use for demodulating the UL signal to the same sTTI, at least in an sTTI apart from the top sTTI.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 4, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou, Huiling Jiang
  • Publication number: 20220312424
    Abstract: The present application provides a terminal and a base station. The terminal includes: a processing unit configured to use a neural network to map a bit sequence to be transmitted into a complex symbol sequence, wherein the neural network is configured to map the bit sequence into the complex symbol sequence within a predetermined range of a complex plane.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 29, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Neng Ye, Xiangming Li, Jianxiong Pan, Wenjia Liu, Xiaolin Hou
  • Publication number: 20220311577
    Abstract: A terminal according to one aspect of the present disclosure includes: a control section that, when a reference signal for radio link monitoring (RLM-RS) is not configured for the terminal, determines a reference signal of a transmission configuration indication (TCI) state associated with at least one transmission/reception point (TRP) as the RLM-RS; and a receiving section that receives the RLM-RS. According to one aspect of the present disclosure, link failure can be appropriately detected.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 29, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20220312466
    Abstract: A terminal according to one aspect of the present disclosure includes a control section and a receiving section. The control section determines a set of transmission configuration indication states (TCI states) to be applied for a channel that is repeatedly transmitted, based on a field of downlink control information (DCI) for scheduling the channel. The receiving section receives the channel based on the set. According to one aspect of the present disclosure, repetition processing can be appropriately controlled.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 29, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Publication number: 20220311126
    Abstract: Provided is an electronic device. The electronic device includes a base and a flip. The flip is rotatable around a rotation axis to bring the electronic device into a closed state. The base is provided with a first antenna including a first slot, and the flip is provided with a second antenna including a groove. In the closed state, the first slot in the first antenna is opposite to the groove in the second antenna.
    Type: Application
    Filed: July 27, 2021
    Publication date: September 29, 2022
    Inventor: Xiaolin HOU
  • Patent number: 11457419
    Abstract: The present invention is designed so that transmission power is controlled adequately even when communication is performed using a plurality of transmission time intervals (TTIs) of varying lengths. According to one aspect of the present invention, a user terminal has a transmission section that transmits signals using a plurality of transmission time intervals (TTIs) of varying lengths, and a control section that controls the transmission power of a first signal that is transmitted in a first TTI, and the transmission power of a second signal that is transmitted in a second TTI having a shorter TTI duration than the first TTI, and, when the total transmission power of the first signal and the second signal that are transmitted in an overlapping manner exceeds the maximum transmission power, the control section exerts control so that transmission power is preferentially allocated to one of the first signal and the second signal.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 27, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou, Huiling Jiang
  • Patent number: 11452099
    Abstract: A user terminal, according to the present invention, has a receiving section that receives resource information, which indicates a single or a plurality of uplink control channel resources, per configuration identifier related to channel state information (CSI) reporting, and a control section that selects an uplink control channel resource to use to transmit a plurality of CSIs, based on the resource information.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 20, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Huiling Li, Lihui Wang, Chongning Na, Xiaolin Hou
  • Publication number: 20220295302
    Abstract: An aspect of a terminal of the present disclosure includes: a control section that controls detection of a beam failure; and a transmitting section that transmits information related to a cell in which the beam failure is detected and a new candidate beam, by using a MAC control element. A format of the MAC control element includes at least a first field indicating presence or absence of detection of the beam failure for each cell and a second field indicating information related to a new candidate beam for a cell in which the beam failure is detected.
    Type: Application
    Filed: August 15, 2019
    Publication date: September 15, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20220295516
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a Physical Downlink Control Channel (PDCCH) configuration with a maximum number of control resource sets (CORESETs) exceeding 3, and a control section that assumes that a transmission configuration indication state (TCI state) for a PDCCH with respect to the CORESETs is designated on the basis of a Medium Access Control Control Element (MAC CE). According to one aspect of the present disclosure, it is possible to perform DL communication preferably even when multiple panels/TRPs are used.
    Type: Application
    Filed: August 15, 2019
    Publication date: September 15, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Publication number: 20220294512
    Abstract: One aspect of a terminal in the present disclosure includes a receiving section that receives downlink control information that uses at least one of a specific RNTI (Radio Network Temporary Identifier) and a specific field; and a control section that, when a beam failure is detected, controls transmission of information related to at least one of a cell in which the beam failure is detected and a new candidate beam by using at least one of an uplink shared channel scheduled in the downlink control information and a configured grant based uplink shared channel configured after receiving the downlink control information.
    Type: Application
    Filed: August 15, 2019
    Publication date: September 15, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Shaozhen Guo, Xiaolin Hou