Patents by Inventor Zhennian Sun

Zhennian Sun 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: 10897386
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: January 19, 2021
    Assignee: NEC CORPORATION
    Inventors: Yukai Gao, Chuangxin Jiang, Zhennian Sun, Gang Wang
  • Publication number: 20200396709
    Abstract: The present disclosure relates to methods and apparatuses timing advance adjustment. According to some embodiments of the disclosure, a method includes: receiving a timing advance command; determining a timing advance adjustment gap based on the received timing advance command, wherein the timing advance adjustment gap is k symbols, and k is a nature number larger than one; applying the corresponding adjustment of uplink transmission timing from k symbols later than the end of the physical channel carrying the timing advance command.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 17, 2020
    Inventors: Zhennian Sun, Haipeng Lei, Hongmei Liu, Chenxi Zhu
  • Publication number: 20200366358
    Abstract: Apparatuses, methods, and systems are disclosed for encoding reference signal received powers. One apparatus (200) includes a processor (202) that: determines (402) a reference signal received power corresponding to each beam of multiple beams to result in a set of determined reference signal received powers; orders (406) the set of determined reference signal received powers in descending order to result in an ordered list of reference signal received powers; and encodes (408) a difference between each two adjacent reference signal received powers of the ordered list of reference signal received powers to result in an encoded ordered list of reference signal received powers.
    Type: Application
    Filed: August 11, 2017
    Publication date: November 19, 2020
    Inventors: Chenxi Zhu, Hongmei Liu, Zhennian Sun
  • Publication number: 20200344014
    Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: in response to detecting that a channel becomes available, determining a target position from at least one potential position predefined in a subframe; and performing the fractional subframe transmission from the target position.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: NEC CORPORATION
    Inventors: Lei JIANG, Hongmei Liu, Gang Wang, Zhennian Sun, Chuangxin Jiang
  • Publication number: 20200305005
    Abstract: Embodiments of the present invention provide method and devices for signaling transmission in unlicensed band. The method comprising determining a signal transmission pattern, which defines time and frequency resources for transmitting at least one signal in a first frequency band; signaling, via a second frequency band, the signal transmission pattern to a first device; and transmitting the at least one signal via the first frequency band, to the first device, according to the signal transmission pattern; wherein a transmission of one of the at least one signal is skipped if time and frequency resource for the transmission defined by the signal transmission pattern is detected as busy. Corresponding methods and devices for receiving a signal which is transmitted using above method are also disclosed.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Lei JIANG, Hongmei LIU, Gang WANG, Chuangxin JIANG, Zhennian SUN
  • Publication number: 20200287767
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Applicant: NEC CORPORATION
    Inventors: Yukai GAO, Chuangxin JIANG, Zhennian SUN, Gang WANG
  • Patent number: 10771206
    Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: in response to detecting that a channel becomes available, determining a target position from at least one potential position predefined in a subframe; and performing the fractional subframe transmission from the target position.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 8, 2020
    Assignee: NEC CORPORATION
    Inventors: Lei Jiang, Hongmei Liu, Gang Wang, Zhennian Sun, Chuangxin Jiang
  • Publication number: 20200267666
    Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes categorizing a number of synchronization signal (SS) blocks into M groups, each group having N SS blocks, wherein M and N are integers and assigning a power level for P transmitted group (s), wherein P is an integer and 1<=P<=M. The SS blocks in each of the P transmitted groups are transmitted in a same assigned power level.
    Type: Application
    Filed: November 1, 2017
    Publication date: August 20, 2020
    Inventors: Zhennian Sun, Chenxi Zhu, Hongmei Liu, Wei Ling
  • Publication number: 20200244415
    Abstract: Apparatuses, methods, and systems are disclosed for determining an association between DMRS and PTRS. One apparatus (200) includes a processor (202) that: determines (1402) a scheduled physical resource block position and bandwidth; and determines (1404), based on the scheduled physical resource block position and bandwidth, an associated demodulation reference signal port index within the physical resource block for a phase tracking reference signal.
    Type: Application
    Filed: August 11, 2017
    Publication date: July 30, 2020
    Inventors: Hongmei Liu, Chenxi Zhu, Zhennian Sun, Haiming Wang
  • Publication number: 20200221401
    Abstract: Apparatuses, methods, and systems are disclosed for synchronization signal block reception and synchronization signal block transmission. One apparatus (200) for synchronization signal block reception includes a receiver (212) that receives (402) multiple synchronization signal blocks. The multiple synchronization signal blocks have different power levels corresponding to at least two synchronization signal blocks of the multiple synchronization signal blocks.
    Type: Application
    Filed: June 16, 2017
    Publication date: July 9, 2020
    Inventors: Chenxi ZHU, Zhennian SUN, Hongmei LIU, Lianhai WU
  • Publication number: 20200186218
    Abstract: Apparatuses, methods, and systems are disclosed for transmitting a beam recovery request. One apparatus (200) includes a receiver (212) that receives (402) information indicating a resource configured for a beam recovery request. The apparatus (200) includes a transmitter (210) that transmits (404) the beam recovery request on the resource in response to a first trigger condition.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 11, 2020
    Inventors: Lianhai Wu, Chenxi Zhu, Zhennian Sun, Haiming Wang, Xiaodong Yu
  • Publication number: 20200177358
    Abstract: The present disclosure is related to a method and apparatus for DMRS transmission. According an embodiment of the disclosure, a method including determining at least one antenna port for a user equipment (UE); determining a demodulation reference signal (DMRS) resource for each of the at least one antenna port respectively; determining the number of symbols for carrying the determined DMRS resource in time domain; and indicating the determined DMRS resource of each of the at least one antenna port to the UE. Embodiments of the disclosure solve the technical problem of indicating DMRS resource and determining symbol/subcarriers for carrying the DMRS resource during DMRS transmission.
    Type: Application
    Filed: August 11, 2017
    Publication date: June 4, 2020
    Inventors: Hongmei Liu, Zhennian Sun, Chenxi Zhu, Hongchao Li, Haipeng Lei
  • Publication number: 20200169357
    Abstract: The present application is related to a method and apparatus of using redundant bits in semi-statically configured HARQ-ACK feedback. A method of receiving information according to one embodiment comprises receiving a first number of code block groups from a base unit, wherein each code block within a code block group is independently decodable; determining a (HARQ-ACK) codebook size corresponding to the first number of code block groups; and transmitting a HARQ-ACK codebook to the base unit, wherein the HARQ-ACK codebook comprises the first number of HARQ-ACK bits with each bit corresponding to one code block group and a second number of padded bits. The first number plus the second number is equal to the determined HARQ-ACK codebook size. The present application enhances the downlink (DL) transmission performance and the uplink (UL) HARQ-ACK transmission reliability.
    Type: Application
    Filed: August 11, 2017
    Publication date: May 28, 2020
    Inventors: Haipeng Lei, Chenxi Zhu, Zhi Yan, Zhennian Sun
  • Publication number: 20200169443
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Applicant: NEC CORPORATION
    Inventors: Yukai GAO, Chuangxin JIANG, Zhennian SUN, Gang WANG
  • Publication number: 20200153583
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting a reference signal and a method and apparatus of receiving a reference signal. In one embodiment of the present disclosure, the method of transmitting a reference comprises receiving a reference signal configuration indication, wherein reference signal resources are divided into at least two reference signal groups, and the reference signal configuration indication indicates a reference signal configuration including a reference signal group configuration; and transmitting the reference signal using a reference signal sequence in a reference signal group as indicated by the reference signal group configuration, wherein the reference signal sequence can be multiplexed with another layer or another user in different reference signal groups.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 14, 2020
    Applicant: NEC CORPORATION
    Inventors: Chuangxin JIANG, Yukai Gao, Zhennian Sun, Gang Wang
  • Publication number: 20200146001
    Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: determining first temporal information that indicates when a channel becomes available; and determining, based on the first temporal information and transmission opportunity information, second temporal information that indicates an end of the fractional subframe transmission.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 7, 2020
    Applicant: NEC CORPORATION
    Inventors: Lei Jiang, Hongmei Liu, Gang Wang, Zhennian Sun, Chuangxin Jiang
  • Publication number: 20200119874
    Abstract: Apparatuses, methods, and systems are disclosed for demodulation reference signal configuration. One apparatus (200) includes a processor (202) that determines (402) a remaining minimum system information channel demodulation reference signal configuration. The apparatus (200) includes a receiver (212) that receives (404) the demodulation reference signal based on the demodulation reference signal configuration.
    Type: Application
    Filed: June 26, 2017
    Publication date: April 16, 2020
    Inventors: Hongmei Liu, Chenxi Zhu, Zhennian Sun, Haiming Wang
  • Publication number: 20200119880
    Abstract: Apparatuses, methods, and systems are disclosed for demodulation reference signal configuration. One apparatus (200) includes a receiver (212) configured to receive (502) a demodulation reference signal configuration for a physical downlink shared channel. The apparatus (200) also includes the receiver (212) configured to receive (504) a demodulation reference signal based on the demodulation reference signal configuration.
    Type: Application
    Filed: June 26, 2017
    Publication date: April 16, 2020
    Inventors: Hongmei Liu, Chenxi Zhu, Zhennian Sun, Haiming Wang
  • Patent number: 10601622
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 24, 2020
    Assignee: NEC CORPORATION
    Inventors: Yukai Gao, Chuangxin Jiang, Zhennian Sun, Gang Wang
  • Patent number: 10594454
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting a reference signal and a method and apparatus of receiving a reference signal. In one embodiment of the present disclosure, the method of transmitting a reference comprises receiving a reference signal configuration indication, wherein reference signal resources are divided into at least two reference signal groups, and the reference signal configuration indication indicates a reference signal configuration including a reference signal group configuration; and transmitting the reference signal using a reference signal sequence in a reference signal group as indicated by the reference signal group configuration, wherein the reference signal sequence can be multiplexed with another layer or another user in different reference signal groups.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 17, 2020
    Assignee: NEC CORPORATION
    Inventors: Chuangxin Jiang, Yukai Gao, Zhennian Sun, Gang Wang