Patents by Inventor Qin MU

Qin MU 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: 11122605
    Abstract: Provided are a transmitting method, a receiving method, a relay device, a base station and a mobile station. According to embodiments of the present invention, the method for transmitting grant information performed by the relay device includes: receiving the grant information for inter-device transmission and a transmitting device identification and a receiving device identification corresponding to the grant information; generating first control information according to the grant information, the transmitting device identification and the receiving device identification; and transmitting the first control information.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: September 14, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Huan Wang, Liu Liu, Qin Mu, Qun Zhao, Huiling Jiang
  • Publication number: 20210266879
    Abstract: A method of transmitting information includes: determining one or more physical resource blocks (PRBs) for transmitting one or more associated channels of a current physical downlink control channel (PDCCH) and transmitting the one or more associated channels on the one or more determined PRBs. The one or more determined PRBs include one or more PRBs other than a current PRB for transmitting the current PDCCH. By determining one or more PRBs for transmitting the one or more associated channels of the current PDCCH or for repeatedly transmitting the current PDCCH, with the one or more determined PRBs including one or more PRBs other than the current PRB for transmitting the current PDCCH, when the one or more associated channels are transmitted on the one or more determined PRBs, it can avoid service congestion caused by excessive load on a certain PRB, and can improve a scheduling flexibility.
    Type: Application
    Filed: June 29, 2018
    Publication date: August 26, 2021
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Qin MU
  • Publication number: 20210250916
    Abstract: The present disclosure provides methods and apparatuses for transmitting MTC DCI, base stations, and user equipment. The method includes: determining a DCI transmission region configured for an MTC device, generating and sending control resource configuration information to the MTC device; determining an information detection capability of the MTC device in the DCI transmission region, where the information detection capability indicates whether the MTC device supports searching for DCI from a target resource region; mapping a target physical resource in the DCI transmission region according to the information detection capability and a preset resource mapping mode, where the target physical resource carries the DCI of the MTC device; and transmitting the DCI to the MTC device through the target physical resource mapped in the DCI transmission region. With the methods of transmitting MTC DCI provided by the present disclosure, transmission resources can be effectively utilized.
    Type: Application
    Filed: June 12, 2018
    Publication date: August 12, 2021
    Inventor: Qin MU
  • Patent number: 11089623
    Abstract: The present invention provides a user terminal and a radio communication method, whereby data communication processes can be performed adequately even when downlink control channels that are different from those of existing LTE systems are configured. A user terminal has a receiving section that receives downlink control information, which is transmitted via a downlink control channel in a control resource set configured in a predetermined resource block, and a control section that controls receipt of downlink data scheduled in a predetermined frequency field, based on the downlink control information, and the downlink data is allocated over the predetermined frequency field from the same time location, or allocated to the predetermined frequency field from varying time locations.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: August 10, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu, Huiling Jiang
  • Publication number: 20210235469
    Abstract: A method and a device are provided for configuring and adjusting a search space parameter. The method includes: determining whether a current state meets a preset condition; obtaining a search space configuration parameter corresponding to the current state from pre-stored multiple sets of search space configuration parameters in response to determining that the current state satisfies the preset condition; switching a search space configuration parameter of a current search space for currently monitoring search space to the search space configuration parameter corresponding to the current state; and using the search space configuration parameter corresponding to the current state to continue monitoring the search space to obtain downlink control information (DCI) sent by a base station through a physical downlink control channel (PDCCH).
    Type: Application
    Filed: April 12, 2021
    Publication date: July 29, 2021
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Qin MU
  • Patent number: 11070334
    Abstract: For the purpose of reducing the deterioration of the quality of communication and/or the drop in the efficiency of the use of resources even when communication is carried out based on different configurations from those of existing LTE systems, according to one aspect of the present invention, a user terminal has a receiving section that receives a downlink control channel, which is transmitted by using a downlink control channel element comprised of a plurality of resource element groups (REGs) and/or one or more REG groups, and a reference signal, which is used to demodulate the downlink control channel, and a control section that controls receipt of the downlink control channel in a certain field, and an allocation pattern of the reference signal is configured in association with at least one of the REG group, the downlink control channel element and the certain field.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: July 20, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu, Xu Zhang
  • Patent number: 11071117
    Abstract: Provided are a resource determination method, a base station and a mobile station. A resource determination method performed by the base station according to embodiments of the present invention includes: determining a resource configuration used for uplink transmission for each mobile station group in a plurality of mobile station groups corresponding to the base station; determining a resource offset set used for the plurality of mobile station groups, wherein the resource offset set includes a plurality of resource candidate offsets such that a mobile station connected to the base station determines uplink transmission resources for the mobile station according to the resource configuration of the mobile station group to which the mobile station belongs and resource candidate offsets in the resource offset set.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: July 20, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Xiaohang Chen, Anxin Li, Qin Mu, Liu Liu, Huiling Jiang, Satoshi Nagata
  • Patent number: 11050602
    Abstract: Methods and communication apparatuses are presented for bit-to-symbol mapping. The method for bit-to-symbol mapping according to one example of the present invention includes: obtaining a plurality of base constellation maps; and mapping an input bit sequence by using the plurality of base constellation maps to generate symbols to be transmitted.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: June 29, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Neng Ye, Dongbo Feng, Xiangming Li, Wenjia Liu, Xiaolin Hou, Qin Mu, Liu Liu
  • Publication number: 20210185650
    Abstract: A terminal is disclosed including a receiver that monitors downlink control channel candidates in a predetermined frequency bandwidth out of a plurality of frequency bandwidths; and a processor that performs a control to change the predetermined frequency bandwidth in accordance with a predetermined timer. In another aspect, a radio communication method is also disclosed.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Kazuaki Takeda, Satoshi Nagata, Qin Mu, Lihui Wang
  • Publication number: 20210184907
    Abstract: The present disclosure provides a method and apparatus for generating spread symbols. The method includes: determining a spreading sequence according to a spreading sequence matrix, where the spreading sequence matrix is generated according to performance parameters of a plurality of user terminals; and spreading initial symbols by using the determined spreading sequence to generate spread symbols.
    Type: Application
    Filed: September 11, 2018
    Publication date: June 17, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Wenjia LIU, Xiaolin HOU, Qin MU, Liu LIU
  • Publication number: 20210153229
    Abstract: A method of processing transmission blocks, applied to user equipment, includes: receiving a scheduling signaling from a base station, wherein the scheduling signaling is configured to schedule a plurality of transmission blocks; and performing a transmission on the plurality of transmission blocks with the base station, wherein two adjacent transmission blocks of the plurality of transmission blocks are spaced by a preset time interval; and the transmission is one of an uplink transmission or a downlink transmission.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Inventor: Qin MU
  • Publication number: 20210153202
    Abstract: A terminal is disclosed including a receiver that receives information on a control resource set including a candidate of a downlink control channel, and a processor that assumes a resource corresponding to the downlink control channel is an unavailable resource for downlink data when the control resource set overlaps with the downlink data. In other aspects, a radio communication method for a terminal is also disclosed.
    Type: Application
    Filed: June 15, 2017
    Publication date: May 20, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu
  • Publication number: 20210153004
    Abstract: A method for physical channel transmission in a machine type communication (MTC) system, applied to a base station, and includes: acquiring user capability information of user equipment (UE); determining a user capability of the UE according to the user capability information, the user capability including: nonsupport for physical downlink channel transmission in along term evolution (LTE) control channel region of a subframe, or support for physical downlink channel transmission in the LTE control channel region of the subframe; and sending a physical downlink channel transmission to the UE according to a transmission type corresponding to the user capability.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 20, 2021
    Inventor: Qin MU
  • Publication number: 20210143947
    Abstract: The present disclosure relates to a data transmission method and apparatus. The method can include, in response to performing resource mapping on a physical downlink channel, mapping data symbols to a data transmission symbol and an adjustment symbol of a target sub-frame containing the adjustment symbol. The target sub-frame is a last sub-frame before performing a frequency adjustment or an uplink/downlink switching and/or a first sub-frame after performing the frequency adjustment or the uplink/downlink switching. The data transmission symbol is an orthogonal frequency division multiplexing (OFDM) symbol for transmitting data, and the adjustment symbol is an OFDM symbol used for an adjustment time of a narrowband frequency adjustment or an adjustment time of the uplink/downlink switching. The method can further include transmitting the data symbol in the adjustment symbol or disabling transmission of the data symbol in the adjustment symbol when performing data transmission in the target sub-frame.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Qin MU
  • Publication number: 20210144714
    Abstract: According to the present invention, when communication is carried out using different formats from those of existing LTE systems, control channels can be communicated properly. A user terminal, according to one aspect of the present invention, includes a receiving section that receives a DL control channel, and a control section that controls monitoring of DL control channel candidates, and the control section determines the aggregation level to monitor and/or the number of DL control channel candidates based on the DCI format and/or the DCI payload size.
    Type: Application
    Filed: June 15, 2017
    Publication date: May 13, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu
  • Patent number: 10993129
    Abstract: The present invention is designed to measure and/or report CSI (Channel State Information) of a plurality of narrow bands, even when the band to use is limited to a partial narrow band in a system band. According to one aspect of the present invention, a user terminal, in which the band to use is limited to a partial narrow band in a system band, has a receiving section that receives information related to CSI (Channel State Information) measurement in a narrow band, a measurement section that measures CSIs in a plurality of narrow bands based on the information related to CSI measurement, and a transmission section that reports the measured CSIs.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: April 27, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuaki Takeda, Shimpei Yasukawa, Satoshi Nagata, Hideyuki Moroga, Liu Liu, Qin Mu
  • Publication number: 20210120557
    Abstract: The present invention is designed to appropriately select PUCCH resources used to transmit HARQ-ACK. According to one aspect of the present invention, a user terminal has a control section that monitors candidate resources of one or more downlink (DL) control channels (DL) transmitted in multiple different time and/or frequency resources, and detects one or more downlink control information (DCI), and a transmission section that transmits delivery acknowledgment information in response to a downlink (DL) data channel by using an uplink (UL) control channel, and the control section selects resources for the UL control channel based on the DCI.
    Type: Application
    Filed: March 17, 2017
    Publication date: April 22, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu, Chongning Na, Xin Wang, Jing Wang, Lihui Wang, Min Liu, Huiling Jiang
  • Publication number: 20210120574
    Abstract: A terminal is disclosed including a receiver that receives a downlink control information and a downlink shared channel that is scheduled by the downlink control information. The terminal also includes a processor that determines an allocation of the downlink shared channel in a time domain based on a first timing indicated by a first time unit and a second timing indicated by a second time unit that are obtained from information notified by the downlink control information. In other aspects, a radio communication method is also disclosed.
    Type: Application
    Filed: March 17, 2017
    Publication date: April 22, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu, Chongning Na, Xin Wang, Jing Wang, Lihui Wang, Min Liu, Huiling Jiang
  • Publication number: 20210105599
    Abstract: Methods and devices for transmitting machine type communication (MTC) system information are provided. A base station determines the ability of an MTC apparatus to detect information in a cell. The ability to detect information includes whether the MTC apparatus supports searching for default MTC system information in a target resource region. The base station may further map a target physical resource in a time-frequency region corresponding to the preset sub-frame according to the information detection ability and a preset resource mapping manner. The target physical resource is used to load the default MTC system information. The base station may also broadcast the preset MTC system information by the target physical resource.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 8, 2021
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Qin MU
  • Publication number: 20210099979
    Abstract: To appropriately communicate a control channel even when communication is performed by applying a different control channel configuration from those of legacy LTE systems, one aspect of the terminal includes: a receiving section that receives a downlink control channel; and a processor that determines a number of downlink control channel candidates to be monitored within a slot based on a rule that uses a maximum number of downlink control channel candidates.
    Type: Application
    Filed: July 28, 2017
    Publication date: April 1, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Qin Mu, Liu Liu