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: 20130279485
    Abstract: Disclosed are a scrambling transmission method and device thereof. The method comprises: a user terminal generates the message to be sent and modulates the message to be sent to generate the data modulation symbols; the user terminal scrambles the data modulation symbol using the cell-specific scrambling sequence, to generate the scrambled data modulation symbols; and the user terminal sending the scrambled data modulation symbols via a DFT-S-OFDM transmission structure with a time domain spreading.
    Type: Application
    Filed: January 6, 2012
    Publication date: October 24, 2013
    Applicant: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD
    Inventors: Xuejuan Gao, Zukang Shen, Yanan Lin
  • Publication number: 20130272157
    Abstract: This application discloses a power control method and device of a Physical Uplink Control Channel (PUCCH) in a long term evolution (LTE) advanced system, relates to the technical field of wireless communications and is intended to reasonably determine the signal transmit power of a user equipment (UE) on the PUCCH to thereby improve the power utilization ratio of the user equipment. In this application, upon determining to bundle generated positive acknowledge (ACK)/negative acknowledge (NACK) information, the UE bundles the ACK/NACK information in a predefined bundling scheme, determines the power offset value corresponding to the number of bits carried on the PUCCH according to the bundling scheme and further determines the transmit power of the PUCCH. With the invention, the transmit power of the UE can be determined more reasonably.
    Type: Application
    Filed: November 22, 2011
    Publication date: October 17, 2013
    Applicant: Datang Mobile Communications Equipment Co., Ltd.
    Inventors: Xuejuan Gao, Zukang Shen, Xueming Pan
  • Publication number: 20130265946
    Abstract: Disclosed are a response message transmission method, a base station, and a user equipment (UE), to achieve an improved system performance while taking into account the system resource overhead. The method comprises: the UE confirming K bit of response message awaiting feedback; the UE confirming M number of channel resources awaiting selection, the M number of channel resources awaiting selection comprising J number of dynamic channel resources and N number of semi-static channel resources, wherein M=(J+N), 0=N=M, (M?N)=L=M, and M, L, and N are integers; the UE selecting at least one channel resource from the M number of channel resources, and selecting a piece of identification information for use in characterizing the response message awaiting feedback; on each of the selected channel resources, the UE transmitting the selected identification information for use in characterizing the response message awaiting feedback.
    Type: Application
    Filed: September 16, 2011
    Publication date: October 10, 2013
    Inventors: Xuejuan Gao, Zukana Shen, Yanan Lin
  • Publication number: 20130208670
    Abstract: The present invention provides a method and apparatus for processing uplink control information (UCI) and a method for transmitting the UCI based on a multiple input multiple output system, which processing method comprises: repeating ACK/NACK source bits and/or rank indicator (RI) source bits in the uplink control information to form M groups, with each group corresponding to a code word (S302), wherein M is the total number of code words; carrying out channel encoding on the ACK/NACK source bits and/or RI source bits of each code word to obtain QACK*Li output bits (S304), wherein QACK is the channel encoding output bits corresponding to each layer in a certain code word, L is the total number of layers, and the layer number corresponding to the i-th code word is Li; and multiplexing and interleaving the output bits and the data bits of the corresponding code word (S306).
    Type: Application
    Filed: August 2, 2011
    Publication date: August 15, 2013
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Wenhong Chen, Ya'nan Lin, Xuejuan Gao
  • Publication number: 20130208611
    Abstract: The present invention discloses a method and apparatus for receiving signals, which comprises the followings: receive signals on at least one receiving branch, which comprises at least two reception units, including one data reception unit and one pilot reception unit at least. Said signal refers to a codeword in a transmission codebook; calculate metric value of each codeword in said transmission codebook according to said received signal; obtain the codeword with maximal metric value among all said codewords and the metric value corresponding to this codeword; if this value exceeds threshold value, Determining the codeword corresponding to said maximal metric value; if this value is less than the threshold value, Determining discontinuously-sent DTX. In the present invention, perform joint demodulation of data symbol and pilot symbol to make the demodulation results more reliable; meanwhile; judge whether it is discontinuous transmission based on joint demodulation of data symbol and pilot symbol.
    Type: Application
    Filed: May 25, 2011
    Publication date: August 15, 2013
    Applicant: CHINA ACADEMY OF TECHNOLOGY
    Inventors: Zukang Shen, Yanan Lin, Xuejuan Gao, Xueming Pan
  • Publication number: 20130208633
    Abstract: Disclosed are a method and an apparatus for transmitting ACK/NACK feedback information. By applying the technical solution of the present invention, when ACK/NACK feedback information is transmitted based on an ACK/NACK mapping table with a PUCCH format 1b with channel selection scheme, the problem of inconsistent detection results due to inconformity of the transmission scheme by a base station and a user equipment (UE) in the process of feeding back the ACK/NACK feedback information can be avoided, so as to implement a rollback of LTE Rel-8 PUCCH format 1a/1b.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 15, 2013
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Zukang Shen, Yanan Lin
  • Publication number: 20130176957
    Abstract: The present invention discloses a method and equipment for UCI transmission. Upon application of the technical solution provided in embodiments of the present invention, UE transmitting UCI through a selected PUSCH is realized when multiple PUSCH transmissions are available for a UE in one uplink subframe in LTE-A carrier aggregation system, which solves the problem on how to transmit UCI only through one PUSCH when multiple PUSCH transmissions are available.
    Type: Application
    Filed: May 13, 2011
    Publication date: July 11, 2013
    Applicant: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Zukang Shen, Yanan Lin, Xueming Pan
  • Publication number: 20130170447
    Abstract: The present invention discloses a configuration method and device for an uplink control channel resource in multi-antenna scene, the technical solutions of the present invention perform configurations for the uplink control channel resource, to a terminal equipment, by means of a semi-statically configured initial resource and a dynamically configured ACK/NACK Resource Indication (ARI) information indication selection result or offset information, thus implements an uplink control channel resource configuration solution combining dynamic indication with semi-static indication. The method can be achieved in a simple and easy way, and simultaneously can be used in a Frequency Division Duplexing (FDD) system and a Time Division Duplexing (TDD) system.
    Type: Application
    Filed: December 1, 2012
    Publication date: July 4, 2013
    Inventors: Yanan Lin, Zukang Shen, Xuejuan Gao
  • Publication number: 20130077541
    Abstract: A method and a device for determining uplink control channel resources are disclosed by the embodiments of the present invention. With the technical solutions of the embodiments of the present invention, the uplink control resources, such as the ACK/NACK and the like, can be configured semi-statically. The method is applicable for both the FDD system and the TDD system. The overhead of the uplink feedback channel in the Long Term Evolution (LTE) carrier aggregation system is reduced. Therefore the system performance of the LTE multi-carrier advanced system is improved, and the system is compatible with the LTE Release 8 system well.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 28, 2013
    Inventors: Yanan Lin, Zukang Shen, Xueming Pan, Xuejuan Gao