Patents by Inventor Ju-Ya Chen

Ju-Ya Chen 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: 10958290
    Abstract: Concepts and schemes pertaining to location of interleaver with low-density parity-check (LDPC) code are described. A processor of an apparatus encodes data to provide a stream of encoded data. The processor also rate matches the encoded data to provide a rate-matched stream of encoded data. The processor further interleaving the rate-matched stream of encoded data. In rate matching the encoded data, the processor buffers the stream of encoded data in a circular buffer, with the circular buffer functioning as a rate matching block that rate matches the stream of encoded data. In interleaving the rate-matched stream of encoded data, the processor performs bit-level interleaving on the rate-matched stream of encoded data to provide a stream of interleaved data.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: March 23, 2021
    Inventors: Wei-Jen Chen, Ju-Ya Chen, Yen-Shuo Chang, Timothy Perrin Fisher-Jeffes, Mao-Ching Chiu, Cheng-Yi Hsu, Chong-You Lee
  • Publication number: 20210051654
    Abstract: Various solutions for resource selection of multiple transmission occasions in new radio (NR) sidelink communications with respect to user equipment and network apparatus in mobile communications are described. An apparatus may select a first transmission resource from a resource selection window. The apparatus may determine a maximum time gap and a minimum time gap. The apparatus may select a second transmission resource according to the maximum time gap and the minimum time gap. The apparatus may inform the first transmission resource and the second transmission resource to a peer apparatus.
    Type: Application
    Filed: July 13, 2020
    Publication date: February 18, 2021
    Inventors: Chien-Yi Wang, Ju-Ya Chen
  • Patent number: 10897792
    Abstract: Various examples and schemes pertaining to methods and apparatus of a New Radio (NR) vehicle-to-everything (V2X) cluster head are described. An apparatus implemented as a source user equipment (UE) determines whether there is a need to either join a cluster or become a cluster head in an NR V2X communication environment. The apparatus also detects whether there is any existing cluster head in the NR V2X communication environment responsive to determining that there is the need. The apparatus then determines whether to join a first cluster associated with a first cluster head responsive to the first cluster head being detected as an existing cluster head in the NR V2X communication environment.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 19, 2021
    Assignee: MediaTek Inc.
    Inventors: Ju-Ya Chen, Chien-Yi Wang, Ahmet Umut Ugurlu
  • Patent number: 10893512
    Abstract: Apparatus and methods are provided for RE allocation for UCI on PUSCH. In one novel aspect, the UE encodes UCI for transmission on PUSCH in a NR network. The UE allocates UCI REs onto the PUSCH following one or more UCI RE allocation rules including (a) using same logical allocation patterns for both CP-OFDM waveforms and DFT-S-OFDM waveforms, (b) distributing the UCI REs across a time domain of the PUSCH, and (c) distributing the UCI REs across a frequency domain for CP-OFDM or across a virtual-time domain for DFT-S-OFDM. In one embodiment, the HARQ-ACK REs are distributed across the time domain as much as possible. In another embodiment, the allocation of the HARQ-ACK REs further involves calculating the number of HARQ REs dynamically for the HARQ ACK. The number of HARQ REs is based on a weighting parameter, which is either configured or obtained through system information.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 12, 2021
    Assignee: MediaTek INC.
    Inventors: Xiu-Sheng Li, Chia-Hua Lin, Guo-Hau Gau, Ju-Ya Chen
  • Patent number: 10887910
    Abstract: Various examples and schemes pertaining to New Radio (NR) vehicle-to-everything (V2X) cluster management are described. An apparatus, implemented in a user equipment (UE) of a V2X cluster in an NR V2X communication environment, receives a scheduling request from a member of the V2X cluster. The apparatus transmits a resource grant to the member to allocate a resource of one or more resources to the member responsive to the receiving of the scheduling request. The one or more resources are either: (a) preconfigured by a wireless network, or (b) granted by the wireless network responsive to the UE transmitting a resource request to the wireless network upon receiving the scheduling request.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 5, 2021
    Assignee: MediaTek Inc.
    Inventors: Ju-Ya Chen, Chien-Yi Wang, Ahmet Umut Ugurlu
  • Publication number: 20200322897
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a transmitting UE. The transmitting UE transmits a reference signal and data to one or more receiving UEs. The transmitting UE receives one or more response signals from the one or more receiving UEs on a particular resource element. Each of the one or more response signals represents at least one of (a) a respective indication based on a measurement at a respective receiving UE, of the one or more receiving UEs, transmitting the each response signal and (b) a respective acknowledgment from the respective receiving UE associated with the data. The transmitting UE determines a transmission power at the transmitting UE based on the respective indications. The transmitting UE transmits data to the one or more receiving UEs at the transmission power.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Inventors: Chien-Hwa Hwang, Ju-Ya Chen, Chien-Yi Wang, Pei-Kai Liao
  • Publication number: 20200321999
    Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Inventors: Guo-Hau Gau, Ho-Chi Huang, Wei-Jen Chen, Chiou-Wei Tsai, Ju-Ya Chen, Mau-Lin Wu
  • Patent number: 10790853
    Abstract: Concepts and schemes pertaining to quasi-cyclic-low-density parity-check (QC-LDPC) coding are described. A processor of an apparatus may generate a QC-LDPC code having a plurality of codebooks embedded therein. The processor may select a codebook from the plurality of codebooks. The processor may also encode data using the selected codebook. Alternatively or additionally, the processor may generate the QC-LDPC code including at least one quasi-row orthogonal layer. Alternatively or additionally, the processor may generate the QC-LDPC code including a base matrix a portion of which forming a kernel matrix that corresponds to a code rate of at least a threshold value.
    Type: Grant
    Filed: November 25, 2018
    Date of Patent: September 29, 2020
    Assignee: MEDIATEK INC.
    Inventors: Mao-Ching Chiu, Chong-You Lee, Cheng-Yi Hsu, Timothy Perrin Fisher-Jeffes, Yen-Shuo Chang, Wei-Jen Chen, Ju-Ya Chen
  • Publication number: 20200267755
    Abstract: Various examples and schemes pertaining to multiple semi-static grant activation and deactivation by a single downlink control information (DCI) transmission in mobile communications are described. An apparatus receives, from a wireless network, a dynamic signaling. The apparatus then activates or deactivates, according to the dynamic signaling, one or more grant configurations associated with one or more configured grants of a plurality of configured grants related to transmissions or receptions with respect to the apparatus.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Ahmet Umut Ugurlu, Ju-Ya Chen
  • Patent number: 10727897
    Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 28, 2020
    Assignee: MediaTek Inc.
    Inventors: Guo-Hau Gau, Ho-Chi Huang, Wei-Jen Chen, Chiou-Wei Tsai, Ju-Ya Chen, Mau-Lin Wu
  • Publication number: 20200228947
    Abstract: Various examples and schemes pertaining to resource allocation in presence of in-band emission (IBE) for New Radio (NR) vehicle-to-everything (V2X) mobile communications are described. An apparatus implemented in a user equipment (UE) identifies a first resource of a plurality of resources used by another UE in a vehicle-to-everything (V2X) communication environment. The apparatus selects a second resource of the plurality of resources adjacent to the first resource. Then, the apparatus performs transmission in the second resource.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Inventors: Ju-Ya Chen, Ahmet Umut Ugurlu
  • Publication number: 20200204295
    Abstract: Aspects of the disclosure provide an apparatus that includes transmitting circuit and processing circuit. The transmitting circuitry is configured to transmit wireless signals. The processing circuitry is configured to encode a set of information bits with a code that is configured for incremental redundancy to generate a code word that includes the information bits and parity bits, buffer the code word in a circular buffer, determine a start position in the circular buffer based on a redundancy version that is selected from a plurality of redundancy versions based on a scenario evaluation of a previous transmission associated with the set of information bits, and transmit, via the transmitting circuitry, a selected portion of the code word from the start position.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Applicant: MEDIATEK INC.
    Inventors: Chong-You LEE, Cheng-Yi Hsu, Maoching Chiu, Timothy Perrin Fisher-Jeffes, Ju-Ya Chen, Yen Shuo Chang, Wei Jen Chen
  • Patent number: 10659079
    Abstract: An apparatus determines a code block size (CBS) of information bits contained in a codeword of low-density parity check (LDPC) coding. The apparatus compares the CBS with at least one threshold, determines, based on a result of the comparison, a Kb number and determines a Kp number based on a code rate and the Kb number. The apparatus generates a parity check matrix. An information portion of the parity check matrix is a first matrix formed by M number of second square matrices. M is equal to Kp multiplied by Kb. A total number of columns in the Kb number of second square matrices is equal to a total number of bits of the CBS. One or more matrices of the M number of second square matrices are circular permutation matrices. The apparatus operates an LDPC encoder or an LDPC decoder based on the parity check matrix.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: May 19, 2020
    Assignee: MEDIATEK INC.
    Inventors: Cheng-Yi Hsu, Chong-You Lee, Wei Jen Chen, Maoching Chiu, Timothy Perrin Fisher-Jeffes, Ju-Ya Chen, Yen Shuo Chang
  • Patent number: 10630319
    Abstract: Concepts and schemes pertaining to structure of interleaver with low-density parity-check (LDPC) code are described. A processor of an apparatus encodes data to provide encoded data. A transceiver of the apparatus transmits the encoded data to at least one network node of a wireless network. In encoding the data to provide the encoded data, the processor encodes the data to result in each code block in the encoded data comprising a respective bit-level interleaver.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 21, 2020
    Assignee: MEDIATEK INC.
    Inventors: Ju-Ya Chen, Cheng-Yi Hsu, Yen-Shuo Chang, Wei-Jen Chen, Mao-Ching Chiu, Timothy Perrin Fisher-Jeffes, Chong-You Lee
  • Publication number: 20200107170
    Abstract: Various examples and schemes pertaining to sidelink resource allocation for vehicle-to-everything (V2X) in New Radio (NR) mobile communications are described. An apparatus implemented in a first user equipment (UE) receives a first signaling from a network node of a wireless network, with the first signaling configuring a first sidelink resource for a sidelink between the first UE and a second UE. The apparatus transmits a packet or transport block (TB) to the second UE on the sidelink using the configured first sidelink resource. The apparatus also receives a second signaling from the network node responsive to the second UE failing to decode the packet or TB, with the second signaling dynamically configuring a second sidelink resource for the sidelink. The apparatus then retransmits the packet or TB to the second UE on the sidelink using the dynamically configured second sidelink resource.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Ju-Ya Chen, Ahmet Umut Ugurlu
  • Publication number: 20200107171
    Abstract: Various examples and schemes pertaining to on-demand network configuration of vehicle-to-everything (V2X) user equipment (UE) autonomy in New Radio (NR) mobile communications are described. An apparatus implemented in a first user equipment (UE) receives a signaling from a network node of a wireless network. Based on the signaling, the apparatus operates simultaneously in a network-controlled mode and an autonomous mode such that: (a) the first UE operates in the network-controlled mode with respect to resource allocation on a first sidelink with a second UE, and (b) the first UE operates in the autonomous mode with respect to resource allocation on a second sidelink with the second UE or a third UE.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Ju-Ya Chen, Ahmet Umut Ugurlu
  • Publication number: 20200107395
    Abstract: Various examples and schemes pertaining to methods and apparatus of a New Radio (NR) vehicle-to-everything (V2X) cluster head are described. An apparatus implemented as a source user equipment (UE) determines whether there is a need to either join a cluster or become a cluster head in an NR V2X communication environment. The apparatus also detects whether there is any existing cluster head in the NR V2X communication environment responsive to determining that there is the need. The apparatus then determines whether to join a first cluster associated with a first cluster head responsive to the first cluster head being detected as an existing cluster head in the NR V2X communication environment.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Ju-Ya Chen, Chien-Yi Wang, Ahmet Umut Ugurlu
  • Publication number: 20200107354
    Abstract: Various examples and schemes pertaining to New Radio (NR) vehicle-to-everything (V2X) cluster management are described. An apparatus, implemented in a user equipment (UE) of a V2X cluster in an NR V2X communication environment, receives a scheduling request from a member of the V2X cluster. The apparatus transmits a resource grant to the member to allocate a resource of one or more resources to the member responsive to the receiving of the scheduling request. The one or more resources are either: (a) preconfigured by a wireless network, or (b) granted by the wireless network responsive to the UE transmitting a resource request to the wireless network upon receiving the scheduling request.
    Type: Application
    Filed: November 1, 2019
    Publication date: April 2, 2020
    Inventors: Ju-Ya Chen, Chien-Yi Wang, Ahmet Umut Ugurlu
  • Patent number: 10608665
    Abstract: Aspects of the disclosure provide an apparatus and a method for error correction based on a matrix. The apparatus includes memory and processing circuitry. The memory is configured to store the matrix associated with a set of parity bits. The matrix having rows and columns includes elements having values corresponding to either a first state or a second state. The matrix also includes a row having two elements with values corresponding to the first state. One of the two elements is a parity element corresponding to a parity bit associated with the row. Further, other elements in a same column as the parity element have values corresponding to the second state. The processing circuitry is configured to implement error correction based on the matrix. In another embodiment, the processing circuitry is configured to encode a data unit by generating the set of parity bits from the data unit based on the matrix and to form a codeword that includes the data unit and the set of parity bits.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: March 31, 2020
    Assignee: MEDIATEK INC.
    Inventors: Chong-You Lee, Timothy Perrin Fisher-Jeffes, Maoching Chiu, Wei Jen Chen, Cheng-Yi Hsu, Ju-Ya Chen, Yen Shuo Chang
  • Patent number: 10601544
    Abstract: Aspects of the disclosure provide an apparatus that includes transmitting circuit and processing circuit. The transmitting circuitry is configured to transmit wireless signals. The processing circuitry is configured to encode a set of information bits with a code that is configured for incremental redundancy to generate a code word that includes the information bits and parity bits, buffer the code word in a circular buffer, determine a start position in the circular buffer based on a redundancy version that is selected from a plurality of redundancy versions based on a scenario evaluation of a previous transmission associated with the set of information bits, and transmit, via the transmitting circuitry, a selected portion of the code word from the start position.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 24, 2020
    Assignee: MEDIATEK INC.
    Inventors: Chong-You Lee, Cheng-Yi Hsu, Maoching Chiu, Timothy Perrin Fisher-Jeffes, Ju-Ya Chen, Yen Shuo Chang, Wei Jen Chen