Patents by Inventor Qianqian Si

Qianqian Si 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: 11057872
    Abstract: Disclosed are a method and device for transmitting uplink control information, which are used for realizing a UE performing switching transmission of an uplink control channel on subframes and carriers, so that if the UE fails to pre-empt a resource on an unlicensed carrier, the UE may switch to the other carriers for transmission or continue to try to perform LBT in subsequent subframes, so as to ensure the timely and correct transmission of the uplink control information. The method comprises: a UE determining a physical uplink control channel (PUCCH) switching carrier group and the maximum feedback delay.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: July 6, 2021
    Assignee: China Academy of Telcommunications Technology
    Inventors: Qianqian Si, Xuejuan Gao, Xueming Pan, Jiaqing Wang
  • Publication number: 20210050948
    Abstract: The embodiments of the present application relate to a method for performing hybrid automatic repeat request feedback, and a terminal, for solving the problem existing in the prior art that there is no clear solution regarding how to perform feedback on HARQ-ACK of an SPS PDSCH. In the embodiments of the present application, the terminal adds or removes HARQ-ACK of an SPS PDSCH in an HARQ-ACK codebook transmitted over a PUCCH or a PUSCH, and transmits a processed HARQ-ACK codebook. Since the terminal can add or remove the HARQ-ACK of the SPS PDSCH in the HARQ-ACK codebook transmitted over the PUCCH or the PUSCH, a solution to perform feedback on the HARQ-ACK of the SPS PDSCH is given, improving system performance.
    Type: Application
    Filed: December 29, 2018
    Publication date: February 18, 2021
    Inventors: Xuejuan GAO, Qianqian SI, Ekpenyong TONY
  • Patent number: 10917916
    Abstract: Disclosed in the present application are a method and a device for transmitting PRACH signals in an unauthorized spectrum, used for enhancing channel access for a PRACH signal. The method comprises: before transmitting each candidate resource as configured in resources, a terminal performs LBT detection according to configuration information of a transmission resource for transmitting PRACH signals until a current channel is detected to be idle; and after detecting that the current channel is idle, the terminal transmits a PRACH signal on the corresponding candidate resource. In the present application, a plurality of candidate resources are configured in a transmission resource for transmitting PRACH signals, such that the terminal may transmit the PRACH signals on the corresponding candidate resource when it is detected that the current channel is idle before any candidate resource, thereby improving transmission probability for PRACH signals and enhancing channel access for PRACH signals.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 9, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Jiaqing Wang, Xueming Pan, Qianqian Si
  • Patent number: 10911205
    Abstract: Disclosed in the present application are a method and device for feeding back downlink data. When a processing duration of an UE is shortened, feedback timing information for feeding back downlink data may be adaptively changed. The method comprises: determining a processing capability of an UE, the processing capability referring to a processing duration that the UE takes to process the received downlink data to determine whether said downlink data needs to be retransmitted; according to the determined processing capability, determining the feedback timing information of the UE feeding back the downlink data.
    Type: Grant
    Filed: May 27, 2017
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMUNICATIONS TECHNOLOGY
    Inventors: Qianqian Si, Xueming Pan
  • Patent number: 10904919
    Abstract: An information feedback method, a base station, a terminal and a storage medium are provided. The information feedback method includes: sending downlink control information to a terminal, where the downlink control information includes indication information configured to instruct the terminal to perform an information feedback, and the indication information includes at least one of a feedback delay of feeding back feedback information by the terminal, an indication of whether a LBT process is performed when feeding back the feedback information by the terminal, a type of the LBT process performed when feeding back the feedback information by the terminal and a parameter configuration of the LBT process performed when feeding back the feedback information by the terminal; receiving the feedback information sent by the terminal based on the indication information in the downlink control information.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 26, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian Si, Xueming Pan, Jiaqing Wang
  • Publication number: 20200404649
    Abstract: Provided are a method and an apparatus of determining a cap of transmission resources available for control information and a communication device. The method of determining a cap of transmission resources available for control information includes: determining, according to a ratio coefficient, a cap of transmission resources to be occupied by coded modulation symbols of control information on a PUSCH.
    Type: Application
    Filed: December 25, 2018
    Publication date: December 24, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian SI, Xuejuan GAO
  • Publication number: 20200374805
    Abstract: An uplink power control method and a mobile terminal are provided. The method includes: acquiring an uplink transmission parameter corresponding to an uplink channel format; calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power.
    Type: Application
    Filed: September 29, 2018
    Publication date: November 26, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian SI, Fangchen CHENG, Xiangli LIN
  • Patent number: 10849155
    Abstract: The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting uplink control information. The method comprises: a terminal determines a resource for transmitting uplink control information, wherein the resource comprises a time domain occupation resource and a frequency domain occupation resource, and duration of the time domain occupation resource is less than 1 ms; and then the terminal transmits the uplink control information on the determined resource. In this way, a solution for uplink control information transmission is provided for the shortened TTI, normal feedback of the uplink control information is supported, and the system performance is ensured.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 24, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Qianqian Si, Xueming Pan, Fang-Chen Cheng
  • Publication number: 20200366352
    Abstract: A CSI transmission method, a communication device and a device are provided. The CSI transmission method includes: determining a resource available for the transmission of the first part of the CSI on a PUSCH in accordance with a target code rate used by the first part of the CSI; and determining an available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as a resource available for the transmission of the second part of the CSI on the PUSCH.
    Type: Application
    Filed: November 23, 2018
    Publication date: November 19, 2020
    Inventors: Qianqian SI, Xuejuan GAO
  • Publication number: 20200322928
    Abstract: A transmission method, a terminal and a base station are provided, thereby solving the problem that there is no specific method in the 5G system for distinguishing whether one DCI triggers the transmission of data and control information at the same time or triggers the transmission of control information only. The transmission includes receiving DCI, wherein the DCI comprises indication information of N bits, the indication information of N bits is used to indicate whether the DCI triggers transmission of data, and N is an integer greater than or equal to 1; and performing transmission based on the indication information in the DCI.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 8, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian SI, Xuejuan GAO
  • Publication number: 20200296695
    Abstract: The present disclosure provides a PUSCH transmission method, a PUSCH reception method, a UE and a base station. The PUSCH transmission method includes: determining indication information about an HARQ-ACK, the indication information about the HARQ-ACK being at least used to indicate whether there is HARQ-ACK information on a target PUSCH; and transmitting the indication information on the target PUSCH. According to the present disclosure, the indication information about the HARQ-ACK is additionally transmitted by the UE on the PUSCH, and the indication information is at least used to indicate whether there is the HARQ-ACK information on the target PUSCH.
    Type: Application
    Filed: October 31, 2018
    Publication date: September 17, 2020
    Inventors: Xuejuan GAO, Qianqian SI
  • Patent number: 10771224
    Abstract: Disclosed in the present application are a method and device for transmitting feedback information, used to define new feedback timing for downlink data using a dynamic and variable TTI length during transmission, so as to ensure that ACK/NACK feedback information of downlink data is fed back on an earliest uplink transmission resource meeting a processing delay requirement, thereby reducing system delay.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: September 8, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Xueming Pan, Fang-Chen Cheng, Qianqian Si
  • Patent number: 10687360
    Abstract: A method and device for transmitting uplink control information is described. The method includes according to the size and position of a feedback window, determining uplink control information; according to a transmission moment of the uplink control information, performing listen-before-talk detection to determine an actual uplink transmission moment; and transmitting the determined uplink control information at an actual uplink transmission moment. In the embodiments of the present disclosure, under the situation where no channel is occupied at a set uplink control information transmission moment, one or more times of listen-before-talk detection are continued, and the determined uplink control information is transmitted on an actual uplink transmission moment, thereby avoiding the situation that uplink control information may not be correctly transmitted in time due to not occupying a channel, and further improving the system performance.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 16, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Qianqian Si, Xuejuan Gao, Xueming Pan, Jiaqing Wang
  • Publication number: 20200170004
    Abstract: Disclosed are a method and device for transmitting uplink control information, which are used for realizing a UE performing switching transmission of an uplink control channel on subframes and carriers, so that if the UE fails to pre-empt a resource on an unlicensed carrier, the UE may switch to the other carriers for transmission or continue to try to perform LBT in subsequent subframes, so as to ensure the timely and correct transmission of the uplink control information. The method comprises: a UE determining a physical uplink control channel (PUCCH) switching carrier group and the maximum feedback delay.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 28, 2020
    Applicant: China Academy of Telcommunications Technology
    Inventors: Qianqian SI, Xuejuan GAO, Xueming PAN, Jiaqing WANG
  • Patent number: 10485007
    Abstract: Embodiments of the present application relate to the technical field of wireless communications, and in particular, to a method and a device for performing carrier scheduling, which are used to perform scheduling for an unlicensed carrier.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 19, 2019
    Assignee: China Academy of Telecommunications Tehcnology
    Inventors: Weijie Xu, Xueming Pan, Zukang Shen, Jiaqing Wang, Qianqian Si
  • Patent number: 10334574
    Abstract: The present invention discloses an uplink data transmission method and device configured to shorten RTT in a transmission condition having a short time slot, thus reducing a user-plane latency and improving the system performance. An embodiment of the present invention provides an uplink data transmission method.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 25, 2019
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian Si, Yanan Lin, Xueming Pan
  • Publication number: 20190190680
    Abstract: Disclosed in the present application are a method and device for feeding back downlink data. When a processing duration of an UE is shortened, feedback timing information for feeding back downlink data may be adaptively changed. The method comprises: determining a processing capability of an UE, the processing capability referring to a processing duration that the UE takes to process the received downlink data to determine whether said downlink data needs to be retransmitted; according to the determined processing capability, determining the feedback timing information of the UE feeding back the downlink data.
    Type: Application
    Filed: May 27, 2017
    Publication date: June 20, 2019
    Inventors: Qianqian SI, Xueming PAN
  • Patent number: 10321476
    Abstract: A data transmission method is provided. The method includes: a base station detecting a preset frequency band, and determining whether an idle for a first length of time exists in a predetermined period of time in a subframe p of the preset frequency band; and if the idle for the first length of time is detected, the base station scheduling data on N consecutive subframes starting from a following subframe of the subframe p and transmitting the data, and setting last A symbols in the last one among the N consecutive subframes to be idle, N and A being both positive integers.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 11, 2019
    Assignee: China Academy of Telecommunications Technology
    Inventors: Yanan Lin, Zukang Shen, Xuejuan Gao, Qianqian Si
  • Publication number: 20190174523
    Abstract: The present disclosure provides a timing adjustment method, a base station, a terminal, and a communication system. The timing adjustment method includes: determining, by a base station, timing advance of a terminal; and adjusting, by the base station according to the TA, a moment for the terminal to transmit an uplink signal. The present disclosure adaptively adjusts the moment at which the terminal transmits the uplink signal based on the actual TA value.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 6, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Lei WANG, Qianqian SI, Xueming PAN, Xuejuan GAO
  • Patent number: 10292149
    Abstract: Disclosed are a physical downlink control channel transmission method and apparatus, which are used for achieving, in the case where an initial signal or signalling which indicates an initial position of a physical downlink shared channel is not transmitted, a method in which a physical downlink control channel is used for transmitting and indicating an initial position of a physical downlink shared channel.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 14, 2019
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Jiaqing Wang, Xueming Pan, Weijie Xu, Qianqian Si