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).

  • Patent number: 11516782
    Abstract: An aspect of a user terminal of the present invention includes a transmitting section that transmits a plurality of pieces of uplink control information (UCI) corresponding to a plurality of communications by using an uplink control channel or an uplink shared channel, and a control section that controls a transmission of at least a part of the plurality of pieces of UCI, based on a format of the uplink control channel or a maximum coding rate configured for the uplink shared channel when transmission timings of the plurality of pieces of UCI overlap each other.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 29, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11510213
    Abstract: Provided by the present disclosure are a method used for signal transmission, and corresponding user terminals and base stations. The method performed by a user terminal includes: receiving indication information for a spatial-domain reception parameter transmitted by a base station; determining a first spatial-domain reception parameter according to the indication information for a spatial-domain reception parameter, so that the user terminal receives downlink data signals through the first spatial domain reception parameter. The method performed by a base station includes: generating indication information for a spatial-domain reception parameter; and transmitting the indication information for a spatial-domain reception parameter to a user terminal, so that the user terminal determines a first spatial-domain reception parameter according to the indication information for a spatial-domain reception parameter.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 22, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Xin Wang, Min Liu, Jing Wang, Xiaolin Hou
  • Publication number: 20220369328
    Abstract: A terminal according to an aspect of the present disclosure includes: a control section that determines a priority of a channel state information (CSI) report based on at least one of a type of downlink control information triggering the CSI report, a parameter used for transmission of the downlink control information, or presence or absence of uplink (UL) data allocated to an uplink shared channel used for transmission of the CSI report; and a transmitting section that transmits, in a case where transmission of the CSI report and transmission of another UL signal overlap with each other, one of the CSI report and the another UL signal based on the priority.
    Type: Application
    Filed: October 3, 2019
    Publication date: November 17, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Lihui Wang, Xiaohong Zhang, Xiaolin Hou
  • Publication number: 20220369138
    Abstract: A terminal according to an aspect of the present disclosure includes a control section that allocates PDCCH candidates to a plurality of search space (SS) sets configured based on maximum numbers of monitored physical downlink control channel (PDCCH) candidates and non-overlapped control channel elements (CCEs) per slot per transmission/reception point, and a receiving section that monitors the allocated PDCCH candidates, wherein each of the plurality of SS sets corresponds to any of a plurality of transmission/reception points. According to one aspect of the present disclosure, it is possible to appropriately monitor a downlink control channel.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 17, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Patent number: 11502775
    Abstract: A user terminal according to the present invention includes: a reception section that receives each of information indicating a code rate for a first uplink control channel, and information indicating a code rate for a second uplink control channel having a longer duration than that of the first uplink control channel; and a control section that controls transmission of Uplink Control Information (UCI) based on a code rate indicated by the information matching an uplink control channel used for the transmission of the uplink control information.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 15, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20220360307
    Abstract: A terminal according to an aspect of the present disclosure includes: a transmitting section that transmits a plurality of pieces of channel state information (CSI) in different occasions, the plurality of pieces of CSI corresponding to at least one channel measurement; and a control section that determines, in response to reception of information corresponding to at least one piece of CSI of the plurality of pieces of CSI, whether or not to perform retransmission of the at least one piece of CSI. With this configuration, reduction of reliability of CSI can be prevented while reducing increase of UL overhead.
    Type: Application
    Filed: September 13, 2019
    Publication date: November 10, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Wenjia Liu, Jing Wang, Xiaolin Hou
  • Publication number: 20220360392
    Abstract: A terminal according to an aspect of the present disclosure includes: a control section that determines a plurality of pieces of channel state information (CSI) corresponding to at least one group and an ID corresponding to each of the plurality of pieces of CSI, each of the at least one group corresponding to at least one channel measurement; and a transmitting section that transmits each of the plurality of pieces of CSI in an occasion corresponding to the ID. With this configuration, reduction of reliability of CSI can be prevented while reducing increase of UL overhead.
    Type: Application
    Filed: September 13, 2019
    Publication date: November 10, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Wenjia Liu, Jing Wang, Xiaolin Hou
  • Publication number: 20220361154
    Abstract: A terminal includes a receiving section that receives downlink control information for which cyclic redundancy check (CRC) bits are scrambled with use of a radio network temporary identifier (RNTI) common to one or more terminals, and a control section that controls reception of data associated with a multicast traffic channel (MTCH) with use of a physical downlink shared channel scheduled by the downlink control information in one or more bandwidth parts in a cell. Therefore, it is possible to appropriately control reception of multicast transmission using a physical downlink shared channel.
    Type: Application
    Filed: June 21, 2019
    Publication date: November 10, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11496344
    Abstract: A user terminal according to one aspect of the present disclosure includes: a transmitting/receiving section that performs transmission and reception by using a first Component Carrier (CC) that uses a first Sub-Carrier Spacing (SCS), and a second CC that uses a second SCS larger than the first SCS; and a control section that, when a semi-static Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) codebook related to both of the first CC and the second CC is transmitted on an uplink shared channel of the second CC, deletes an HARQ-ACK bit corresponding to a downlink shared channel candidate that does not satisfy a requirement of processing time. According to one aspect of the present disclosure, it is possible to appropriately transmit HARQ-ACK even when a semi-static HARQ-ACK codebook is configured.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 8, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • Publication number: 20220353710
    Abstract: A terminal includes a receiving section that receives cell-specific or terminal-specific configuration information related to a physical downlink control channel, and a control section that controls, on the basis of the configuration information, a configuration of a search space set to monitor a physical downlink control channel to schedule a physical downlink shared channel associated with a multicast traffic channel. Therefore, it is possible to appropriately control monitoring of a physical downlink control channel to schedule a physical downlink shared channel to transfer multicast data.
    Type: Application
    Filed: June 21, 2019
    Publication date: November 3, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11489579
    Abstract: A terminal is disclosed including a transmitter that transmits a beam failure recovery request signal; and a processor that maintains, in a beam failure recovery procedure including the transmission of the beam failure recovery request signal, monitoring of downlink control information for a random access. In other aspects, a radio communication method and a base station are also disclosed.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: November 1, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20220338231
    Abstract: A terminal is disclosed including a receiving unit that receives a signal that is encoded by using transform precoding; and a controlling unit that assumes that size of transform precoding is determined based on a bandwidth of a downlink.
    Type: Application
    Filed: August 9, 2019
    Publication date: October 20, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Juan Liu, Wenjia Liu, Shaozhen Guo, Jing Wang, Xin Wang, Xiaolin Hou
  • 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
  • Publication number: 20220338225
    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 determines so as to include a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) corresponding to the downlink control information at one or a plurality of positions of 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
  • Publication number: 20220338192
    Abstract: A radio communication node is disclosed including a higher node connecting unit used for a connection with a higher node; a lower node connecting unit used for a connection with a lower node; and a control unit that gives a notification indicating a direction of downlink or uplink in which a radio resource destined for the lower node is used to the higher node or a network.
    Type: Application
    Filed: September 26, 2019
    Publication date: October 20, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Kurita, Hiroki Harada, Weiqi Sun, Jing 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: 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: 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: 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