Patents by Inventor Jiewei Ding

Jiewei Ding 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: 11233533
    Abstract: An impulse radio ultra wideband multi-antenna time delay receiver and a method for acquiring an angle of arrival based on the same are disclosed. The receiver includes M antennas, M radio frequency paths, an analog front end, an analog-digital converter and a digital processing unit, wherein each antenna is correspondingly connected with one of the radio frequency paths, output ends of all the M radio frequency paths are connected with the analog front end, an output end of the analog front end is connected with an input end of the analog-digital converter, and an output end of the analog-digital converter is connected with the digital processing unit, wherein the radio frequency path corresponding to the mth antenna is provided with a time delayer, 1<m?M, and m and M are respectively natural numbers greater than 1.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: January 25, 2022
    Assignee: Shenzhen Giant Microelectronics Company Limited
    Inventors: Shaohua Zhao, Jiewei Ding, Lefeng Shen, Weimin Zhang
  • Patent number: 9813214
    Abstract: A method, apparatus and system for feeding back early stop decoding are provided. The method includes: a terminal side adjusting encoded TFCI bits, and sending the adjusted TFCI bits to a NodeB side via a TFCI domain of an uplink DPCCH (S302); after sending the adjusted TFCI bits to the NodeB side, the terminal side performing a decoding operation on a downlink DPCH, and feeding back, via an idle TFCI domain of the uplink DPCCH, a decoding result to the NodeB side (304). By applying the technical solution, at least one of the problems in the related art that a NodeB cannot obtain a TFCI in time and a terminal side cannot feed back a downlink decoding result in time during early stop decoding can be solved.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: November 7, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO. LTD
    Inventors: Meiying Wang, Jiewei Ding, Tao Liu
  • Patent number: 9722758
    Abstract: This invention provides a method for a first communication device, such as a base station, to estimate a channel-quality profile of a channel when a second communication device, e.g., a user equipment, returns only channel-quality indicators (CQIs) of selected subbands and a wideband CQI. The profile is obtained by including, for any two neighboring frequencies of the selected subbands, an estimated CQI of a middle frequency between the two neighboring frequencies. After translating the CQIs of the two neighboring frequencies into corresponding linear CQI values, a linear estimated-CQI value for the middle frequency is determined by subtracting an offset from an average of said corresponding linear CQI values. The offset is determined according to a frequency separation between the two neighboring frequencies. Preferably, the offset is linearly proportional to the frequency separation. Interpolation, preferably linear interpolation, is used to obtain linear CQI values of other frequencies.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 1, 2017
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Jiewei Ding, Man Wai Kwan, Jihui Zhang, Kong Chau Tsang
  • Patent number: 9713106
    Abstract: Provided are a method, a base station and a computer storage medium for implementing inner loop and closed loop power control. The method includes that when User Equipment (UE) is in a soft handover status, a cell which belongs to a Radio Link Set (RLS) different from that of a serving cell of the UE sends a fixed power control instruction to instruct the UE to increase transmission power.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: July 18, 2017
    Assignee: ZTE CORPORATION
    Inventors: Meiying Wang, Jiewei Ding, Tao Liu
  • Patent number: 9698836
    Abstract: Systems and methods which provide mitigation of self-interference in spectrally efficient full duplex (e.g., transmit and receive using the same frequency simultaneously) communications are described. Embodiments provide an interference mitigation structure having a multi-tap vector modulator interference cancellation circuit operable to cancel time varying multipath interference in the analog RF domain. A multi-tap vector modulator interference cancellation circuit of embodiments may comprise part of a multi-stage interference cancellation circuit, such as a multi-stage interference cancellation circuit comprising a multi-tap vector modulator interference cancellation circuit and a digital residual interference cancellation circuit. A digital residual interference cancellation circuit of embodiments provides residual interference cancellation.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 4, 2017
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Wen Qin, Yuanyuan Du, Jiewei Ding, Man Wai Kwan, Angus Chi Keung Mak, Kong Chau Tsang
  • Publication number: 20160344488
    Abstract: This invention provides a method for a first communication device, such as a base station, to estimate a channel-quality profile of a channel when a second communication device, e.g., a user equipment, returns only channel-quality indicators (CQIs) of selected subbands and a wideband CQI. The profile is obtained by including, for any two neighboring frequencies of the selected subbands, an estimated CQI of a middle frequency between the two neighboring frequencies. After translating the CQIs of the two neighboring frequencies into corresponding linear CQI values, a linear estimated-CQI value for the middle frequency is determined by subtracting an offset from an average of said corresponding linear CQI values. The offset is determined according to a frequency separation between the two neighboring frequencies. Preferably, the offset is linearly proportional to the frequency separation. Interpolation, preferably linear interpolation, is used to obtain linear CQI values of other frequencies.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 24, 2016
    Inventors: Jiewei DING, Man Wai KWAN, Jihui ZHANG, Kong Chau TSANG
  • Publication number: 20160285486
    Abstract: Systems and methods which provide mitigation of self-interference in spectrally efficient full duplex (e.g., transmit and receive using the same frequency simultaneously) communications are described. Embodiments provide an interference mitigation structure having a multi-tap vector modulator interference cancellation circuit operable to cancel time varying multipath interference in the analog RF domain. A multi-tap vector modulator interference cancellation circuit of embodiments may comprise part of a multi-stage interference cancellation circuit, such as a multi-stage interference cancellation circuit comprising a multi-tap vector modulator interference cancellation circuit and a digital residual interference cancellation circuit. A digital residual interference cancellation circuit of embodiments provides residual interference cancellation.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 29, 2016
    Inventors: Wen Qin, Yuanyuan Du, Jiewei Ding, Man Wai Kwan, Angus Chi Keung Mak, Kong Chau Tsang
  • Publication number: 20160057715
    Abstract: Provided are a method, a base station and a computer storage medium for implementing inner loop and closed loop power control. The method includes that when User Equipment (UE) is in a soft handover status, a cell which belongs to a Radio Link Set (RLS) different from that of a serving cell of the UE sends a fixed power control instruction to instruct the UE to increase transmission power.
    Type: Application
    Filed: March 24, 2014
    Publication date: February 25, 2016
    Inventors: Meiying Wang, Jiewei Ding, Tao Liu
  • Patent number: 9237513
    Abstract: A methods for performing a cell search in multiple antenna wireless systems using a plurality of spatial filters is disclosed, and includes applying a plurality of spatial filters to a plurality of received signal streams to generate a plurality of filtered signal streams. The plurality of received signal streams correspond to signals received at a plurality of receive antennas from a plurality of signal sources (e.g., neighboring cells). In an aspect, the plurality of spatial filters may be predefined spatial filters and may be weighted using a set of predefined filter weights. In an additional or alternative aspect, the plurality of spatial filters may be adaptive spatial filters and may be weighted using a set of dynamically determined filter weights. The method includes detecting physical network identities based on the plurality of filtered signal streams.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: January 12, 2016
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Yin Yang, Jiewei Ding, Yuxian Zhang, Honglei Zhang, Kong Chau Tsang
  • Publication number: 20150365882
    Abstract: A methods for performing a cell search in multiple antenna wireless systems using a plurality of spatial filters is disclosed, and includes applying a plurality of spatial filters to a plurality of received signal streams to generate a plurality of filtered signal streams. The plurality of received signal streams correspond to signals received at a plurality of receive antennas from a plurality of signal sources (e.g., neighboring cells). In an aspect, the plurality of spatial filters may be predefined spatial filters and may be weighted using a set of predefined filter weights. In an additional or alternative aspect, the plurality of spatial filters may be adaptive spatial filters and may be weighted using a set of dynamically determined filter weights. The method includes detecting physical network identities based on the plurality of filtered signal streams.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 17, 2015
    Inventors: Yin Yang, Jiewei Ding, Yuxian Zhang, Honglei Zhang, Kong Chau Tsang
  • Publication number: 20150358135
    Abstract: A method, apparatus and system for feeding back early stop decoding are provided. The method includes: a terminal side adjusting encoded TFCI bits, and sending the adjusted TFCI bits to a NodeB side via a TFCI domain of an uplink DPCCH (S302); after sending the adjusted TFCI bits to the NodeB side, the terminal side performing a decoding operation on a downlink DPCH, and feeding back, via an idle TFCI domain of the uplink DPCCH, a decoding result to the NodeB side (304). By applying the technical solution, at least one of the problems in the related art that a NodeB cannot obtain a TFCI in time and a terminal side cannot feed back a downlink decoding result in time during early stop decoding can be solved.
    Type: Application
    Filed: September 6, 2013
    Publication date: December 10, 2015
    Inventors: Meiying WANG, Jiewei DING, Tao LIU
  • Publication number: 20150304024
    Abstract: A method and device for distributing a code offset are provided. The method includes: an RNC equally dividing the access time of a UE into one or more sets of access time which are not overlapped with one another, wherein each set of access time comprises one or more timeslots; and the RNC distributing a corresponding code offset ?DPCH or ?F-DPCH according to the type of the UE, wherein the ?DPCH or ?F-DPCH is located in the above-mentioned timeslot in the above-mentioned access time of the above-mentioned UE. The disclosure solves the problem in the related art, thereby reducing the interference among the TDM UEs, improving the system throughput, and being unable to severely affect the performance of the downlink as well.
    Type: Application
    Filed: September 17, 2013
    Publication date: October 22, 2015
    Applicant: ZTE Corporation
    Inventors: Lu LIU, Chen WANG, Jiewei DING
  • Patent number: 9049738
    Abstract: A sectorized scheduling method for the high speed uplink packet access service is provided in the present invention, the method comprises: obtaining the current sector load of each sector and the current high speed uplink packet access service HSUPA mobile station load of each sector, and the maximal allowable sector load of each sector; obtaining the rest available sector load based on the maximal allowable load and the current sector load, performing load assignment for each sector based on the rest available sector load and the distribution of HSUPA mobile station in various sectors. A sector based scheduling system for the high speed uplink packet access service is also provided in the present invention. The present invention correctly associates the HSUPA UE load and the sector load, solves the problem of the larger overload or the larger underload, and improves the HSUPA throughput by several times.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: June 2, 2015
    Assignee: ZTE Corporation
    Inventors: Jiewei Ding, Yuanping Zheng, Changchun Tang, Chen Wang
  • Patent number: 8514784
    Abstract: A method and an apparatus for processing downlink signals in different sectors, which may be applied in processing downlink signals in a one or more sectored cell. The method and apparatus may include a Node B determining a sector where a mobile terminal, which has built a wireless link with the Node B, is located based on a current connection. The method and apparatus may allow Node B to separately schedule resources of the one or more sectors in the cell, and for one or more mobile equipment which has built a wireless link with the Node B. The method and apparatus allows Node B transmitting of downlink signals to this mobile terminal only in the sector where the mobile terminal locates currently, while processing downlink signals in different sectors. The method and apparatus can reduce downlink transmission power and improve network coverage quality.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: August 20, 2013
    Assignee: ZTE Corporation
    Inventors: Jiewei Ding, Yibin Zhai
  • Publication number: 20120020228
    Abstract: A sectorized scheduling method for the high speed uplink packet access service is provided in the present invention, the method comprises: obtaining the current sector load of each sector and the current high speed uplink packet access service HSUPA mobile station load of each sector, and the maximal allowable sector load of each sector; obtaining the rest available sector load based on the maximal allowable load and the current sector load, performing load assignment for each sector based on the rest available sector load and the distribution of HSUPA mobile station in various sectors. A sector based scheduling system for the high speed uplink packet access service is also provided in the present invention. The present invention correctly associates the HSUPA UE load and the sector load, solves the problem of the larger overload or the larger underload, and improves the HSUPA throughput by several times.
    Type: Application
    Filed: December 30, 2008
    Publication date: January 26, 2012
    Applicant: ZTE CORPORATION
    Inventors: Jiewei Ding, Yuanping Zheng, Changchun Tang, Chen Wang
  • Publication number: 20110149823
    Abstract: The present invention discloses a method for processing downlink signals in different sectors, applied in processing downlink signals in sectored cell, and this method comprises: a Node B determining a sector where a mobile terminal, which has built a wireless link with the Node B, locates currently; and the Node B separately scheduling resources of each sectors in the cell, and for each mobile equipment which has built a wireless link with the Node B, the Node B transmitting downlink signals to this mobile terminal only in the sector where the mobile terminal locates currently. The present invention also discloses a Node B for processing downlink signals in different sectors. The present invention can reduce downlink transmission power and improve network coverage quality.
    Type: Application
    Filed: August 27, 2008
    Publication date: June 23, 2011
    Applicant: ZTE CORPORATION
    Inventors: Jiewei Ding, Yibin Zhai
  • Patent number: 7630320
    Abstract: The present invention provides a method of scheduling packet in a wireless telecommunication system, in which the user packet queues to be transmitted are divided into the user packet queues with packet loss and the user packet queues without packet loss; for the user packet queues with packet loss, if a real time loss ratio of packet for the user exceeds a predetermined loss ratio threshold of packet, terminate a connection to the user; if the real time loss ratio of packet for the user does not exceed the predetermined loss ratio threshold of packet, schedule the user packet queues according to a volume of the loss ratio of packet; for the user packet queues without packet loss, schedule according to packet lengths, channel quality states, time delays and time delay jitters.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: December 8, 2009
    Assignee: ZTE Corporation
    Inventors: Junfeng Zhang, Jiewei Ding, Yi Sun, Jun Zhang, Yingchun Pu
  • Publication number: 20070116024
    Abstract: The present invention provides a method of scheduling packet in a wireless telecommunication system, in which the user packet queues to be transmitted are divided into the user packet queues with lost packet and the user packet queues without lost packet; for the user packet queues with lost packet, if a real time lost ratio of packet for the user excesses a predetermined lost ratio threshold of packet, terminate a connection to the user; if the real time lost ratio of packet for the user does not excess the predetermined lost ratio threshold of packet, schedule the user packet queues according to a volume of the lost ratio of packet; for the user packet queues without lost packet, schedule according to packet lengths, channel quality states, time delays and time delay jitters.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 24, 2007
    Inventors: Junfeng Zhang, Jiewei Ding, Yi Sun, Jun Zhang, Yingchun Pu