Patents by Inventor Xuejuan Gao

Xuejuan Gao 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).

  • Publication number: 20190327066
    Abstract: The application discloses a physical uplink shared channel data transmission method and device. The method comprises: a terminal adjusts or schedules, according to detected downlink control channel data utilizing an uplink DCI format and/or PHICH data in a subframe n, PUSCH data to be transmitted in a special subframe (n+k), wherein k is a predefined value. A base station transmits the downlink control channel data utilizing the uplink DCI format and/or the PHICH data in the subframe n, to adjust or schedule the terminal to transmit the PUSCH data in the special subframe (n+k), wherein k is a predefined value. The application provides a schedule timing definition for transmitting PUSCH data in a special subframe, thereby ensuring normal transmission of the PUSCH data in the special subframe.
    Type: Application
    Filed: May 26, 2017
    Publication date: October 24, 2019
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190306808
    Abstract: A method for transmitting pilots of an uplink shared channel comprises: determining, by a UE, transmit power of data carried in the uplink shared channel; determining, by the UE, transmit power of the pilots carried in the uplink shared channel according to the transmit power of the data carried in the uplink shared channel, and a pilot power boosting factor of the UE, wherein the pilot power boosting factor represents a multiple of transmit power of the pilots of the uplink shared channel in a resource element relative to transmit power of the data carried in the uplink shared channel in a resource element, the multiple is more than or equal to 1, and the pilots are transmitted in a symbol occupied by the pilots with a comb-like pattern; and transmitting, by the UE, the pilots of the uplink shared channel at the transmit power of the pilots.
    Type: Application
    Filed: May 12, 2017
    Publication date: October 3, 2019
    Inventors: Xuejuan GAO, Songtao LIU, Pan XUEMING
  • Publication number: 20190280822
    Abstract: The invention relates to the field of wireless communication technology, and in particular, to a method and device for transmitting and receiving feedback information, resolving a problem of providing ACK/NACK feedback of a physical uplink shared channel (PUSCH) transmission in an uplink pilot time slot (UpPTS). In one embodiment of the invention, the method comprises: a terminal transmits, in a special subframe n, PUSCH data, and receive, in a subframe (n+kPHICH), physical hybrid-ARQ indicator channel (PHICH) data corresponding to the PUSCH data, wherein a PHICH is used to carry feedback information of the PUSCH data; and a network apparatus receives, in the special subframe n, the PUSCH data, and transmits, in the subframe (n+kPHICH), the PHICH data corresponding to the PUSCH data. Therefore, the embodiment implements transmission of ACK/NACK of PUSCH data in an UpPTS.
    Type: Application
    Filed: April 13, 2017
    Publication date: September 12, 2019
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Xueming PAN
  • Patent number: 10382113
    Abstract: Disclosed in the present invention are a downlink data repeat transmission method and device for addressing a problem in which, when resource mapping is performed in different subframes in a repeat transmission, the numbers of available REs are different, and as a result data cannot be combined when performing repeat transmission of multiple subframes. The method comprises: determining a subframe set of a repeat transmission physical downlink channel; in each subframe of the determined subframe set, and when performing a resource mapping on the physical downlink channel, starting mapping from a specific start character position in a first time slot of the current subframe and mapping to all resources except for a resource corresponding to a reference signal used for demodulation; and transmitting the physical downlink channel according to the resource mapping manner.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 13, 2019
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Yanan Lin
  • Patent number: 10374773
    Abstract: The embodiments of the present application relate to the technical field of wireless communications, and in particular, to a method, system and device for transmitting feedback information, used for realizing simultaneous feedback of multi-carrier ACK/NACK and periodical CSI. The method for sending feedback information in the embodiments of the present application includes: user equipment determining a PUCCH resource corresponding to first feedback information in second feedback information periodical reporting subframes; the user equipment determining feedback information to be transmitted and including the first feedback information according to the determined PUCCH resource and transmitting same via the PUCCH resource corresponding to the first feedback information.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 6, 2019
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Yanan Lin, Zukang Shen, Xuejuan Gao
  • Publication number: 20190230600
    Abstract: The present disclosure provides a method, a device and an apparatus for controlling uplink transmission power, and a storage medium. The method includes: receiving, by a UE, configuration information, and determining a PC parameter corresponding to a TTI length of a first type and a PC parameter corresponding to a TTI length of a second type in accordance with the configuration information; and determining, by the UE, transmission power of a channel which is transmitted using the TTI length of the first type in accordance with the PC parameter corresponding to the TTI length of the first type, and transmission power of a channel which is transmitted using the TTI length of the second type in accordance with the PC parameter corresponding to the TTI length of the second type.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 25, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Songtao LIU, Xueming PAN
  • Publication number: 20190230602
    Abstract: Disclosed in the present application are a power distribution method and apparatus, used for enabling simultaneous transmission by communication channels using TTI of different lengths by means of controlling the transmission power of the transmission channels respectively using TTI of different lengths to not surpass the permitted maximum transmission power of a device. The method comprises: determining the sum of the transmission powers of an uplink channel using a first TTI length for transmission and of an uplink channel using a second TTI length for transmission in a sub-frame; and when the sum surpasses the permitted maximum transmission power of a device, implementing power distribution according to a predetermined rule, such that the sum does not surpass the permitted maximum transmission power of the device.
    Type: Application
    Filed: June 30, 2017
    Publication date: July 25, 2019
    Inventor: Xuejuan GAO
  • Publication number: 20190191435
    Abstract: The application provides an uplink transmission method, a network side device and a terminal. The uplink transmission method includes that a terminal receives first configuration information at a first-time-domain position, and receives second configuration information at a second-time-domain position, in which the first configuration information indicates frequency-domain resource information of an uplink shortened Transmission Time Interval (sTTI) transmission performed by the terminal at a third-time-domain position, and the second configuration information indicates scheduling information for the uplink sTTI transmission performed by the terminal at the third-time-domain position; and the terminal performs the uplink sTTI transmission at the third-time-domain position, according to the first and second configuration information.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 20, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190182810
    Abstract: Embodiments of the present disclosure provide methods and devices for dynamically determining a transmission location of an Uplink (UL) DeModulation Reference Signal (DMRS), including: receiving, by a terminal, a DownLink (DL) control channel; and determining, by the terminal, the transmission location of the UL DMRS according to the DL control channel.
    Type: Application
    Filed: July 5, 2017
    Publication date: June 13, 2019
    Applicant: CHINA CADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, 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: 20190174492
    Abstract: A data transmission method, a terminal and a base station are provided. The data transmission method includes: determining, by a terminal, data transmitted in the first TTI length and/or data transmitted in the second TTI length that are processed in a same sub-frame based on capability reported by the terminal or a predefined rule, the data including a shared channel and/or a control channel; wherein the first TTI length is less than the second TTI length.
    Type: Application
    Filed: April 25, 2017
    Publication date: June 6, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Fangchen CHENG, Xueming Kumudinie PAN
  • Publication number: 20190173703
    Abstract: The present disclosure provides an sPUCCH transmission method, a UE and a base station. The sPUCCH transmission method includes: receiving downlink data, and acquiring a cyclic shift value for the transmission of an sPUCCH in accordance with indication information carried in a downlink control channel corresponding to the received downlink data; and transmitting the sPUCCH in accordance with the cyclic shift value, ACK/NACK feedback information for the downlink data being carried in the sPUCCH.
    Type: Application
    Filed: May 26, 2017
    Publication date: June 6, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • 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
  • Publication number: 20190173721
    Abstract: Disclosed in the present invention are a method and device for transmitting and detecting a synchronous signal, which is used to solve the problem that there is currently no clear solution as to how should a terminal detect a synchronous signal when multiple types of base-band numerology are defined in a new wireless communication system. The method comprises: a terminal determining a base-band numerology used to detect a synchronous signal; the terminal detecting the synchronous signal according to the determined base-band numerology. The terminal first determines a base-band numerology used to detect a synchronous signal before detecting said synchronous signal, and then detects the synchronous signal according to the determined base-band numerology, so as to identify the base-band numerology used in the synchronous signal transmission in future communication systems which support multiple types of base-band numerology, thereby correctly detecting the synchronous signal.
    Type: Application
    Filed: May 24, 2017
    Publication date: June 6, 2019
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Fang-Chen CHENG, Xueming PAN, Qiubin GAO
  • Publication number: 20190174430
    Abstract: A power control method, apparatus and system for short transmission time interval transmission, and a storage medium are provided, relating to the field of communication, so as to avoid introducing a new transient period definition with respect to the transmission with a short TTI, and ensure the power measurement to be completed according to the time template defined in the existing 3GPP 36.101 protocol. The present disclosure includes: determining a first target transmission power corresponding to a to-be-processed object in a subframe, in a case that the subframe includes a plurality of short transmission time interval TTI transmissions; and transmitting the short TTI transmission within the to-be-processed object according to the first target transmission power corresponding to the to-be-processed object.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 6, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190165899
    Abstract: The present invention discloses a transmission method and apparatus for feedback information of uplink transmission. The method comprises: a terminal transmitting a physical uplink shared channel (PUSCH) in a special sub-frame m, where m is an integer; the terminal detecting, subsequent to the special frame m, in a sub-frame comprising downlink transmission resources or in a sub-frame m+k, a downlink control channel using an uplink/downlink control information (DCI) format, where k is a positive integer, and the terminal determining, according to the downlink control channel, whether to again transmit the PUSCH transmitted in the special sub-frame m. accordingly, the present invention provides a transmission solution that transmits PUSCH feedback information in a special sub-frame, ensuring that the PUSCH transmitted in the special sub-frame can normally obtain ACK/NACK feedback information.
    Type: Application
    Filed: March 9, 2017
    Publication date: May 30, 2019
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Xueming PAN
  • Publication number: 20190141727
    Abstract: The present disclosure provides a method for transmitting HARQ feedback information, a UE, a base station and a system. The method includes: receiving, by a UE, indication information from a base station, the indication information being configured to indicate a transmission subframe for transmitting the HARQ feedback information in a carrier; generating, by the UE, the HARQ feedback information; and transmitting, by the UE, the HARQ feedback information to the base station within the transmission subframe.
    Type: Application
    Filed: May 8, 2017
    Publication date: May 9, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian SI, Xueming PAN, Xuejuan GAO, Jiaqing WANG
  • Publication number: 20190123878
    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: Application
    Filed: February 8, 2017
    Publication date: April 25, 2019
    Inventors: Xuejuan GAO, Xueming PAN, Fang-Chen CHENG, Qianqian SI
  • Publication number: 20190124675
    Abstract: An uplink transmission method and an uplink transmission device are provided. The uplink transmission method includes: receiving a first downlink control channel which carries scheduling information of a first uplink shared channel and determining, based on the scheduling information carried on the first downlink control channel, a first frequency domain resource for transmitting the first uplink shared channel; generating a pilot of the first uplink shared channel based on the first frequency domain resource and a basic frequency domain unit; and transmitting the first uplink shared channel and the pilot on the first frequency domain resource.
    Type: Application
    Filed: March 20, 2017
    Publication date: April 25, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Fangchen CHENG
  • Publication number: 20190109692
    Abstract: The application discloses an ACK/NACK feedback method and an associated apparatus serving to resolve the problem arising from data in different transmission time intervals having different transmission and processing latencies, leading to different earliest time points to transmit an ACK/NACK feedback message, and subsequently resulting in being unable to ensure normal ACK/NACK feedback in downlink transmission.
    Type: Application
    Filed: March 1, 2017
    Publication date: April 11, 2019
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan GAO, Fang-Chen CHENG