Patents by Inventor Ming Jia

Ming Jia 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: 10129928
    Abstract: System and method embodiments are provided for enabling flexible and reliable UE-to-UE based relay. The embodiments include using fountain codes for combining signals at a suitable network layer higher than a media access control (MAC) sub-layer and using a MAC sub-layer hybrid automatic repeat request (HARQ) transmission scheme. When a relay UE in a UE group for joint reception receives, from a network access point, a data packet intended for a destination UE in the UE group and including fountain code at the higher network layer, the relay UE sends the data packet to the destination UE and returns a HARQ ACK message at the MAC sub-layer to the access point. The destination UE then receives and decodes the data packet. Subsequently, upon receiving the entire data, the destination UE sends an ACK message at the higher network layer to the access point.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ming Jia, Jianglei Ma, Peiying Zhu
  • Patent number: 10128897
    Abstract: A two-phase approach to machine-type communications is provided. In a first phase, for activity detection, at least one symbol is transmitted using a long signature. During a second phase, for data transmission, information-carrying symbols are transmitted using a short spreading signature. Activity detection performance is enhanced through the use of a longer spreading signature.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: November 13, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Javad Abdoli, Ming Jia
  • Publication number: 20180316455
    Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 1, 2018
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hua Xu, Hang Zhang, Mo-Han Fong
  • Patent number: 10116478
    Abstract: A method and apparatus are provided for reducing the number of pilot symbols within a MIMO-OFDM communication system, and for improving channel estimation within such a system. For each transmitting antenna in an OFDM transmitter, pilot symbols are encoded so as to be unique to the transmitting antenna. The encoded pilot symbols are then inserted into an OFDM frame to form a diamond lattice, the diamond lattices for the different transmitting antennae using the same frequencies but being offset from each other by a single symbol in the time domain. At the OFDM receiver, a channel response is estimated for a symbol central to each diamond of the diamond lattice using a two-dimensional interpolation. The estimated channel responses are smoothed in the frequency domain. The channel responses of remaining symbols are then estimated by interpolation in the frequency domain.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 30, 2018
    Assignee: BlackBerry Limited
    Inventors: Peiying Zhu, Wen Tong, Jianglei Ma, Ming Jia
  • Publication number: 20180309606
    Abstract: The present application relates to a filtering scheme with low complexity. The method includes: dividing an orthogonal frequency division multiplexing (OFDM) signal into a first sideband signal, a first signal, and a second sideband signal; sampling the first sideband signal by using a first sampling rate; sampling the first signal by using a second sampling rate; sampling the second sideband signal by using a third sampling rate; and separately performing filtering processing of a third spectral mask, upsampling processing, and digital frequency conversion processing to generate a first filtered-OFDM (f-OFDM) signal, a second f-OFDM signal and a third f-OFDM signal; and superposing the first f-OFDM signal, the second f-OFDM signal, and the third f-OFDM signal to obtain an f-OFDM signal, where the first sampling rate and the third sampling rate are both less than the second sampling rate.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Jing QIU, Ming JIA, Jianglei MA
  • Publication number: 20180309609
    Abstract: A method for operating a device includes determining adaptation criteria for a waveform to be transmitted by a transmitting device over a communications channel towards a receiving device, and adjusting a generalized multi-carrier multiplexing parameter (GMMP) of the waveform in accordance with the adaptation criteria. The method also includes transmitting an indicator of the adjusted GMMP to at least one of the transmitting device and the receiving device.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Peiying Zhu, Jianglei Ma, Ming Jia, Wen Tong
  • Publication number: 20180310304
    Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Sophie Vrzic, Mo-Han Fong, Dong-Sheng Yu, Hua Xu
  • Patent number: 10110285
    Abstract: The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Hua Xu, Wen Tong, Peiying Zhu, Moussa Abdi
  • Patent number: 10098121
    Abstract: Methods and devices are disclosed for decoding multiple sparsely encoded data sequences in a wireless communications network. A received signal carrying multiple sparsely encoded data sequences is decoded by selecting a first plurality of the data sequences and performing multi-user decoding on the received signal to decode the first plurality of data sequences. Other data sequences are treated as noise. The plurality of data sequences is selected to meet a collision threshold for the multi-user decoding. Data sequences may be selected based on a collision contribution and signal quality metrics. A modified received signal is generated to remove signals associated with the multiple sparsely encoded data sequences which have been successfully decoded. The method may be performed for additional iterations to select a new plurality of data sequences, and perform the multi-user decoding on the modified received signal to decode additional data sequences, until a stopping condition is met.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: October 9, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Javad Abdoli, Ming Jia, Jianglei Ma
  • Patent number: 10091040
    Abstract: A method and apparatus are provided for reducing the number of pilot symbols within a MIMO-OFDM communication system, and for improving channel estimation within such a system. For each transmitting antenna in an OFDM transmitter, pilot symbols are encoded so as to be unique to the transmitting antenna. The encoded pilot symbols are then inserted into an OFDM frame to form a diamond lattice, the diamond lattices for the different transmitting antennae using the same frequencies but being offset from each other by a single symbol in the time domain. At the OFDM receiver, a channel response is estimated for a symbol central to each diamond of the diamond lattice using a two-dimensional interpolation. The estimated channel responses are smoothed in the frequency domain. The channel responses of remaining symbols are then estimated by interpolation in the frequency domain.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 2, 2018
    Assignee: BlackBerry Limited
    Inventors: Peiying Zhu, Wen Tong, Jianglei Ma, Ming Jia
  • Publication number: 20180279345
    Abstract: System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventors: Jianglei Ma, Ming Jia
  • Patent number: 10084562
    Abstract: A method includes generating, by a transmitter, an original OFDM signal having at least one OFDM symbol, the at least one OFDM symbol having an associated time domain tail; truncating, by the transmitter, at least a portion of the time domain tail to produce a truncated OFDM signal; and transmitting, by the transmitter, the truncated OFDM signal.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 25, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Javad Abdoli, Ming Jia, Jianglei Ma
  • Publication number: 20180270027
    Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 20, 2018
    Inventors: Jianglei Ma, Ming Jia
  • Publication number: 20180270748
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180270746
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 20, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180269536
    Abstract: A battery module includes number of single batteries each single battery having a shell and a cap cover; an anode housing and a cathode housing both having a number of receiving barrels; an anode current collecting board posited on the anode housing having a number of fusible conductive plates; a repairable electrode board positioned on the anode current collecting board; a number of connection member each received in a respective receiving barrel of the cathode housing; an cathode current collecting board posited on the cathode housing; and a number of repairable conductive plates. One end adjacent to the cap cover of each single battery is received in a receiving barrel and the cap cover is soldered to and electrically connected a respective fusible conductive plate. Each repairable conductive plate is configured to be replaced a fusible conductive plates and soldered to the repairable electrode board.
    Type: Application
    Filed: February 12, 2018
    Publication date: September 20, 2018
    Inventors: Yuanliang Wei, Ming Wen, Shirong Wu, Hao Xu, Lvyi Cai, Zhonggui Jia
  • Publication number: 20180270725
    Abstract: A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame.
    Type: Application
    Filed: May 17, 2018
    Publication date: September 20, 2018
    Inventors: Jianglei Ma, Ming Jia, Peiying Zhu, Wen Tong
  • Publication number: 20180270747
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180262303
    Abstract: Methods are disclosed herein for generating and using outer codes based on non-equal length code blocks. In one embodiment, the outer code has a length equal to the length of the longest code block. This can be achieved by padding shorter code blocks such that they are also of equal length to the longest code block. The padding may be a standardized pseudo-random pattern or a standardized repeating pattern. In another embodiment, the outer code has a length shorter than the length of the longest code block. If a code block is received in error it may be recovered by using one or more of: the first outer code block, information bits of other code blocks and the parity bits of the failed code block.
    Type: Application
    Filed: January 17, 2018
    Publication date: September 13, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: MING JIA, JIANGLEI MA
  • Patent number: 10075939
    Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 11, 2018
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Mo-Han Fong, Peiying Zhu, Wen Tong