Patents by Inventor Lan Chen

Lan Chen 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: 12690040
    Abstract: A terminal is disclosed including a control unit that is capable of multiplexing a first uplink control information of a first priority and a second uplink control information of a second priority in an uplink control channel; and a communication unit that transmits an uplink signal via the uplink control channel, wherein the control unit determines a resource of the uplink control channel based on whether the first uplink control information is associated with the first uplink control information.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: July 21, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Qiping Pi, Jing Wang, Lan Chen
  • Publication number: 20260206059
    Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives indication information related to the number of repetitions of a message 3, and a control section that determines the number of repetitions of the message 3, based on the indication information and information related to a repetition of a message 1 in random access procedure including a repetition of the message 3. According to an aspect of the present disclosure, it is possible to enhance coverage in random access procedure.
    Type: Application
    Filed: July 5, 2022
    Publication date: July 16, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Naoya SHIBAIKE, Yuki MATSUMURA, Satoshi NAGATA, Qiping PI, Jing WANG, Lan CHEN, Yiyi LU, Yong LI
  • Publication number: 20260206033
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a MAC CE (MAC Control Element) including cell switching indication information on cell switching from a serving cell to a candidate cell, and a control section that controls, based on the cell switching indication information, a configuration of a window or a timer for switching from the serving cell to the candidate cell, and operation after the cell switching. The control section controls the window or the timer, based on a MAC reset configuration indicating the operation after the cell switching.
    Type: Application
    Filed: December 15, 2022
    Publication date: July 16, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
  • Patent number: 12684591
    Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives first downlink control information indicating cancellation of UL transmission; and a control section that judges whether uplink shared channel transmission is scheduled, based on a symbol position of a first control channel providing the first downlink control information and a symbol position of a second downlink control channel providing second downlink control information for scheduling the uplink shared channel transmission, wherein the control section judges the symbol position of the first downlink control channel and the symbol position of the second downlink control channel, based on at least one of whether repetition transmission of the first downlink control channel is performed and whether repetition transmission of the second downlink control channel is performed.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: July 14, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Publication number: 20260197830
    Abstract: This terminal includes a control unit determining uplink control information including information related to the number and/or duration of transmission opportunities for uplink signals unused, and a transmission unit transmitting the uplink control information.
    Type: Application
    Filed: November 15, 2023
    Publication date: July 9, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Qiping Pi, jing Wang, Lan Chen
  • Publication number: 20260197048
    Abstract: To appropriately perform a group-based beam reporting related to UL transmission. A terminal according to one aspect of the present disclosure includes a receiving section that receives resource information related to a channel state information resource available for UL group-based beam reporting, and a control section that performs channel state information reporting including at least one of UL group-based beam reporting and DL group-based beam reporting, based on the resource information.
    Type: Application
    Filed: May 15, 2023
    Publication date: July 9, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Publication number: 20260190151
    Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a downlink control channel order to be used for triggering a random access procedure, from a given candidate cell for another candidate cell different from the given candidate cell; and a control section that determines the other candidate cell, based on the downlink control channel order. According to one aspect of the present disclosure, even when communication is performed by using a plurality of transmission points, communication can be appropriately controlled.
    Type: Application
    Filed: November 4, 2022
    Publication date: July 2, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun, Lan Chen
  • Publication number: 20260189929
    Abstract: An aspect of the present disclosure provides a terminal comprising: a reception unit that receives a beam-based cross-link interference measurement setting; and a transmission unit that transmits a measurement result per beam acquired in accordance with the cross-link interference measurement setting.
    Type: Application
    Filed: April 27, 2022
    Publication date: July 2, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Kurita, Hiroki Harada, Qiping Pi, Jing Wang, Lan Chen
  • Patent number: 12672143
    Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines two values of a power control parameter when physical uplink control channel (PUCCH) spatial relation information is not provided; and a transmitting section that transmits a PUCCH by using at least one of the two values of the power control parameter and one or more transmission occasions. The two values are associated with two respective indices. The two indices are either two index values of a control resource set (CORESET) pool index or two index values of a transmission configuration indication (TCI) state associated with one codepoint of a field in downlink control information. According to one aspect of the present disclosure, a power control parameter can be appropriately determined.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: June 30, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Publication number: 20260181698
    Abstract: A terminal according to one aspect of the present disclosure includes a transmitting section that transmits a plurality of repetitions of a physical random access channel, and a control section that determines a radio network temporary identifier (RNTI) for reception of a response to the physical random access channel. According to one aspect of the present disclosure, it is possible to improve coverage in a random access procedure.
    Type: Application
    Filed: November 25, 2021
    Publication date: June 25, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
  • Publication number: 20260180740
    Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives a configuration for determination of a parameter related to a number of spatial domain basis vectors for a plurality of transmission points, and a control section that controls, based on the configuration, a report of the spatial domain basis vector for the plurality of transmission points. An aspect of the present disclosure allows appropriate CSI/codebook for CJT to be determined.
    Type: Application
    Filed: November 10, 2022
    Publication date: June 25, 2026
    Applicant: NTT DOCOMO, INC
    Inventors: Yuki Matsumura, Satopshi Nagata, Jing Wang, Lan Chen
  • Publication number: 20260180736
    Abstract: The present disclosure provides a terminal and a base station in a communication system. The terminal includes a receiving unit configured to receive information about spatial filters of a base station; a control unit configured to determine at least one spatial filter index corresponding to a specific synchronization signal block index according to information about the spatial filters of the base station, wherein the at least one spatial filter index corresponding to the specific synchronization signal block index is generated by using a pseudo-random sequence generator.
    Type: Application
    Filed: November 24, 2021
    Publication date: June 25, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Xin Wang, Xiaolin Hou, Lan Chen, Satoshi Suyama, Tatsuki Okuyama
  • Patent number: 12665802
    Abstract: The present disclosure provides an electronic device and a modulation method. The electronic device includes: a receiving unit, which is configured to obtain a first input bit sequence; and a control unit, which is configured to perform pseudo N-order first type modulation on the first input bit sequence, wherein N first symbols that may be obtained by means of the pseudo N-order first type modulation are a portion of second symbols that may be obtained by means of M-order second type modulation, M and N are positive integers, and M is greater than N.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: June 23, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Xiaojuan Wang, Jianxiong Pan, Neng Ye, Xiangming Li, Wenjia Liu, Juan Liu, Xiaolin Hou, Lan Chen, Yoshihisa Kishiyama
  • Patent number: 12666488
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a medium access control-control element (MAC CE) indicating two active transmission configuration indicator (TCI) states for one control resource set, and a control section that, when an information element of a radio link monitoring (RLM) reference signal is not provided, uses a reference signal in at least one TCI state out of the two active TCI states for RLM. According to one aspect of the present disclosure, it is possible to appropriately perform at least one of RLM and BFD.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: June 23, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Patent number: 12666292
    Abstract: To appropriately perform CSI measurement and reporting for multi-panel/TRP. A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information related to a plurality of pairs of channel measurement resources, and a control section that controls, on the basis of the configuration information, group-based beam reporting or channel state information reporting for a plurality of transmission/reception points.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: June 23, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
  • Patent number: 12666373
    Abstract: A terminal according to one aspect of the present disclosure includes a control section that, when transmission of a Power Headroom Report (PHR) Medium Access Control (MAC) control element in a certain serving cell and Physical Uplink Shared Channel (PUSCH) repetition transmission using a plurality of sounding reference signal resource indicators (SRIs) in another serving cell temporally overlap, determines one or two PHRs regarding the other serving cell to be included in the PHR MAC control element, and a transmitting section that transmits the PHR MAC control element. According to one aspect of the present disclosure, the PHR report when MTRP PUSCH repetition is used can be appropriately performed.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: June 23, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Publication number: 20260172163
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section to which, for a codebook based physical downlink shared channel (PUSCH), dynamic switching between a first scheme using multi-panel simultaneous transmission space division multiplexing (SDM) and a second scheme with transmission of the PUSCH associated with one panel is applied, the receiving section being configured to receive an indication indicating the second scheme, and a control section that applies at least one of a first sounding reference signal (SRS) resource indicator (SRI) field and a first transmitted precoding matrix indicator (TPMI) field in downlink control information (DCI). According to one aspect of the present disclosure, it is possible to appropriately apply at least one of an SRI field and a TPMI field.
    Type: Application
    Filed: November 4, 2022
    Publication date: June 18, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
  • Patent number: 12659121
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives information related to at least two of a control resource set (CORESET) pool index associated with a CORESET, two transmission configuration indication (TCI) states associated with the CORESET, and two search space sets linked to each other, and a control section that controls, on the basis of the information, reception of a physical downlink control channel. According to one aspect of the present disclosure, it is possible to appropriately perform reception on the basis of PDCCH/CORESET configuration.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: June 16, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun, Lan Chen
  • Publication number: 20260164413
    Abstract: A radio communication node determines a transmission timing of at least one of a downlink and an uplink, and transmits a control element of a medium access control layer including information on a slot to which the transmission timing determined is applied to the lower node.
    Type: Application
    Filed: November 17, 2022
    Publication date: June 11, 2026
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Kurita, Hiroki Harada, Weiqi Sun, Jing Wang, Lan Chen
  • Patent number: 12652142
    Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a configuration for two physical downlink control channel (PDCCH) candidates linked with each other; and a control section that uses, when downlink control information transmitted by using the two PDCCH candidates corresponds to a reference PDCCH candidate of the two PDCCH candidates, the downlink control information for uplink control channel resource determination. According to one aspect of the present disclosure, it is possible to support PDCCH repetition transmission appropriately.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: June 9, 2026
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen