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: 11757586
    Abstract: Embodiments of the present invention provide a wireless communication method, a user equipment and a base station. The wireless communication method performed by the user equipment includes: receiving reference signal configuration information transmitted by a base station by using at least one reference signal group, the reference signal configuration information including an identification of at least one reference signal group and measurement configuration information of at least one reference signal group; and feeding back feedback information about channel quality according to the reference signal configuration information.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 12, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Jing Wang, Xiaolin Hou, Xin Wang, Yuki Matsumura, Satoshi Nagata
  • Patent number: 11757580
    Abstract: Provided by an embodiment of the present invention are a user equipment and base station that may be used in a wireless communication system, or a method performed by the user equipment and the base station. The user equipment according to the embodiment of the present invention includes: a receiving unit that is configured to receive multiple access signature information for the user equipment from a base station, wherein the multiple access signature information includes correction information indicating a reference signal sequence sent with respect to the user equipment; and a control unit that is configured to determine the reference signal sequence of the user equipment according to the received correction information.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 12, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Runxin Wang, Wenjia Liu, Xiaolin Hou, Daiki Takeda
  • Patent number: 11750354
    Abstract: A user terminal includes: a receiving section that receives information related to a plurality of resources respectively associated with a plurality of transmission points, wherein at least one of an offset and a guard domain is present between the plurality of resources; and a control section that performs communication with the plurality of transmission points based on the information. According to one aspect of the present disclosure, it is possible to appropriately perform communication that uses a plurality of transmission points.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 5, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Runxin Wang, Jing Wang, Xiaolin Hou
  • Patent number: 11751214
    Abstract: According to one aspect of the present invention, an apparatus is disclosed including a transmitter that transmits a transport block (TB) using a physical uplink shared channel based on a downlink control information, a processor that applies a same symbol allocation across a plurality of slots when transmission of the TB is carried out over the plurality of slots, and an input apparatus that accepts an input, wherein the TB contains information based on the input. In other aspects, a system including an apparatus and a base station is also disclosed.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: September 5, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Keisuke Saito, Kazuaki Takeda, Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20230261905
    Abstract: A user equipment, a base station, a joint training device for a user equipment and a base station, a joint channel estimation and feedback system for a user equipment and a base station, a feedback channel state information generation method, a channel matrix generation method, a joint training method, and a joint channel estimation and feedback method for a user equipment and a base station in wireless communication. Feedback channel state information is generated by a user equipment according to an actual pilot signal, and a deeper residual learning neural network is introduced into a base station to reconstruct a channel matrix of the base station according to the feedback channel state information. As such, it is possible that the base station can reconstruct a complete high-resolution channel matrix even if an actually received pilot signal is an incomplete low-resolution part.
    Type: Application
    Filed: April 9, 2021
    Publication date: August 17, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Xin Wang, Xiaolin Hou, Anxin Li, Lan Chen, Tong Chen, Jiajia Guo, Shi Jin
  • Publication number: 20230262612
    Abstract: A terminal according to one aspect of the present disclosure includes a control section that, when a trigger event related to a given panel occurs, triggers power headroom report (PHR) related to the given panel, and a transmitting section that transmits a Medium Access Control (MAC) control element related to the triggered PHR. The trigger event includes an event in which a periodic timer related to the given panel expires. According to one aspect of the present disclosure, PHR related to a panel can be appropriately triggered/transmitted.
    Type: Application
    Filed: July 3, 2020
    Publication date: August 17, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Xiaolin Hou
  • Publication number: 20230254893
    Abstract: A radio base station executes a channel access procedure in a second frequency band different from a first frequency band allocated for mobile communications. The radio base station configures parameters for each beam applied to the channel access procedure.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 10, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Naoya Shibaike, Hiroki Harada, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20230246695
    Abstract: The present invention provides a terminal and a base station in a wireless communication system, and methods executed by the terminal and the base station. The terminal comprises: a processing unit, configured to perform characteristic domain transformation on a channel matrix to obtain a transformed channel characteristic and compress the transformed channel characteristic to obtain a compressed channel characteristic; and a transmitting unit, configured to transmit the compressed channel characteristic, as feedback information, to the base station.
    Type: Application
    Filed: April 9, 2021
    Publication date: August 3, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Xin Wang, Xiaolin Hou, Anxin Li, Lan Chen
  • Patent number: 11716730
    Abstract: A user terminal according to one aspect of the present disclosure includes a transmitting section that transmits data and uplink control information using an uplink shared channel, and a control section that controls a mapping pattern of the uplink control information, based on whether or not a frequency resource to which the uplink shared channel is allocated is hopped in a slot.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 1, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20230239887
    Abstract: A terminal includes: a control unit configured to control predetermined communication, which uses a same antenna port, for transmitting two or more transport blocks by using frequency division multiplexing; and a reception unit configured to receive downlink control information used for the predetermined communication, wherein the control unit controls the predetermined communication based on the downlink control information.
    Type: Application
    Filed: April 22, 2020
    Publication date: July 27, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Naoya Shibaike, Hiroki Harada, Satoshi Nagata, Xin Wang, Jing Wang, Xiaohong Zhang, Xiaolin Hou
  • Patent number: 11706006
    Abstract: A user equipment apparatus in a radio communication system in which uplink communication and downlink communication are dynamically changed includes a reception unit configured to receive, from a base station, control information indicating a resource for an uplink demodulation reference signal in a subframe used for transmitting uplink data; and a transmitting unit configured to transmit the uplink demodulation reference signal according to the control information; wherein the resource for the uplink demodulation reference signal is multiplexed into a part of resources corresponding to one or more symbols at a beginning of a data segment in the subframe used for transmitting the uplink data.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 18, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Yousuke Sano, Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Xin Wang, Xiaolin Hou, Huiling Jiang
  • Patent number: 11700613
    Abstract: A user terminal includes a receiving section configured to receive first downlink control information for activation of a first channel following periodicity configured by a higher layer and receive second downlink control information for scheduling retransmission of the first channel, and a control section configured to apply a given parameter among first configuration information indicating a configuration for the first channel, second configuration information indicating a configuration for a second channel with periodicity not configured by a higher layer, and the second downlink control information, to the retransmission.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 11, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11696302
    Abstract: A user terminal according to an aspect of the present disclosure includes: a receiving section that receives configuration information of a plurality of control resource sets configured in a partial band in a carrier; and a control section that controls, when the plurality of control resource sets are configured to have different pieces of presence information indicating whether or not a certain field indicating a state of a transmission configuration indicator is present in a specific downlink control information (DCI) format, monitoring of downlink control information of the specific DCI format in a plurality of search spaces respectively associated with the plurality of control resource sets.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 4, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Yuki Matsumura, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11695597
    Abstract: A terminal receives a slot that includes a plurality of symbols. The terminal determines the number of symbols included in a sub-frame on the basis of a time length of the symbol.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: July 4, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xin Wang, Xiaolin Hou
  • Publication number: 20230208603
    Abstract: The present disclosure provides a transmitting device, a receiving device, a method for transmitting interference information, and a method for channel access. The receiving device includes a processing unit configured to perform interference measurement on an unauthorized frequency band to obtain interference information; and a transmitting unit, configured to transmit the interference information to a transmitting device.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 29, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Jing Wang, Xiaolin Hou, Lan Chen, Liu Liu, Yong Li, Tong Sha, Hiroki Harada, Shinya Kumagai
  • Publication number: 20230209561
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives a physical downlink control channel (PDCCH) configuration including a plurality of different control resource set (CORESET) pool indexes; and a control section that, when a scheduling offset of an aperiodic channel state information reference signal (A-CSI-RS) is smaller than a threshold and there is another downlink signal using an indicated transmission configuration indication (TCI) state in a same symbol as the A-CSI-RS, determines, based on the downlink signal, quasi collocation (QCL) assumption applied to the A-CSI-RS. According to the aspect of the present disclosure, the A-CSI-RS can be appropriately measured.
    Type: Application
    Filed: May 15, 2020
    Publication date: June 29, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Publication number: 20230199794
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a MAC control element (MAC CE) capable of specifying a plurality of transmission configuration indication (TCI) states for one control resource set, and a control section that controls reception of downlink control information transmitted from each of a plurality of transmission points by using a same control resource set, based on the MAC CE.
    Type: Application
    Filed: May 7, 2020
    Publication date: June 22, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20230199688
    Abstract: The present disclosure provides a terminal and a method performed by the terminal. The terminal is in a communication system, including: a receiving unit that receives timing advance information indicating a first timing advance amount; and a processing unit that acquires a location of the terminal, determines a timing offset based on the location, and determines a terminal-specific timing advance amount based on the first timing advance amount and the timing offset.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 22, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Jing Wang, Xiaolin Hou, Lan Chen, Liu Liu, Yong Li, Tianjia Wang
  • Publication number: 20230199763
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives information indicating a plurality of transmission configuration indication (TCI) states for a same demodulation reference signal (DMRS) port for physical downlink shared channel (PDSCH); and a control section that determines, based on downlink control information, at least one of a TCI state and resource allocation of each of a plurality of PDSCHs that carry same downlink data. According to an aspect of the present disclosure, it is possible to appropriately receive downlink data from a plurality of transmission points.
    Type: Application
    Filed: May 7, 2020
    Publication date: June 22, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
  • Publication number: 20230198820
    Abstract: A terminal transmits and receives a slot configured with a plurality of symbols. The terminal sets a length of a cyclic prefix added to each symbol based on a degree of compression of each symbol in time domain.
    Type: Application
    Filed: May 14, 2020
    Publication date: June 22, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Naoya Shibaike, Hiroki Harada, Satoshi Nagata, Juan Liu, Wenjia Liu, Xiaolin Hou