Patents by Inventor Chengjun Sun

Chengjun 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: 10448413
    Abstract: Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: October 15, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yingyang Li, Chengjun Sun
  • Patent number: 10448339
    Abstract: Disclosed is a method for controlling an uplink (UL) power in a multi-subframe scheduling system including a user equipment (UE) receiving a multi-subframe UL scheduling instruction or physical downlink control channel (PDCCH) data of a downlink control information (DCI) format 3/3 A of the UE, in a DL subframe where the multi-subframe UL scheduling instruction is transmitted, and the UE determining a transmitting power of the PUSCH of each UL subframe scheduled by the multi-subframe UL scheduling instruction, based on a power controlling command value, and transmitting corresponding PUSCH data based on the calculated transmitting power.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: October 15, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Shichang Zhang, Yingyang Li, Chengjun Sun
  • Patent number: 10425968
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a differential beamforming based random access method, base station, and user equipment, wherein the differential beamforming based random access method comprises, by a base station: receiving a preamble sequence from a first terminal in a differential beamforming receiving mode; determining a base station beam direction angular deviation based on the preamble sequence; and adjusting a base station beam according to the base station beam direction angular deviation, and transmitting a random access response signal to the first terminal through the adjusted base station beam.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chen Qian, Bin Yu, Qi Xiong, Chengjun Sun
  • Publication number: 20190288802
    Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Shichang ZHANG, Yingyang LI, Jingxing FU, Yi WANG, Chengjun SUN, Lixiang XU
  • Patent number: 10419177
    Abstract: A method of signal transmitting in a filtering-based carrier modulation system, includes determining, by a transmitter, a reference signal pattern for each subband of an available frequency band of a system, and transmitting reference signal pattern information to a receiver, inserting, by the transmitter, reference signals on corresponding time-frequency resources according to the reference signal pattern of each subband, performing a carrier modulation and time domain filtering to data signals and the reference signals, and transmitting a processed signal of each subband, wherein the reference signals are used for estimating a frequency domain response of an equivalent channel consisting of a time domain filter and a physical channel from the transmitter to the receiver. The present disclosure also provides a receiving method, a transmitter and a receiver. According to the present disclosure, the storage requirement and detecting complexity of the receiver may be decreased greatly.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 17, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chen Qian, Bin Yu, Qi Xiong, Chengjun Sun
  • Publication number: 20190281600
    Abstract: A method and an apparatus are provided for HARQ-ACK feedback information transmission in a traffic adaptive TDD system. The method includes obtaining a resource indicator and power control information in a physical downlink control channel (PDCCH) scheduling a physical downlink shared channel (PDSCH); identifying at least one physical uplink control channel (PUCCH) resource indicated by the obtained resource indicator; controlling power based on the obtained power control information; and transmitting the HARQ-ACK information in the identified at least one PUCCH resource using the controlled power.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Jingxing FU, Chengjun Sun
  • Publication number: 20190274102
    Abstract: A method and an apparatus for measuring an inter-frequency neighboring cell is provided. The method comprises obtaining a time requirement of cell identification of a specific carrier, obtaining a time requirement of cell measurement of the specific carrier, identifying a new cell on the corresponding specific carrier in the time requirement of the cell identification of the specific carrier, measuring Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ) of an identified cell in the time requirement of the cell measurement of the specific carrier, and reporting a measurement result of the identified cell according to a configured measurement event, wherein the specific carrier is different from other carriers, and the time requirement of the cell identification of the specific carrier is different from time requirements of the cell identification of other carriers.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Inventors: Xutao ZHOU, Chengjun SUN, Gert-Jan VAN LIESHOUT
  • Publication number: 20190268891
    Abstract: The present disclosure discloses cache-based data transmission methods and apparatuses. The method is implemented as follows. An apparatus where a caching node is located reports a caching capability to a network side, and the caching node is configured to cache data. The network side sends a cache indicating parameter to the apparatus where the caching node is located, and maintains a data list. Wherein, the cache indicating parameter is configured to control the caching node to cache the data which has the property of high repetition probability and/or high cache utilization, and the data list is a list of the data cached in the caching node. When the caching node has cached data requested by a UE, the UE obtains the requested data from the caching node.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Hong Wang, Lixiang Xu, Chengjun Sun, Bin Yu
  • Patent number: 10397945
    Abstract: The present disclosure is to provide a method of configuring timing of uplink (UL) transmission, comprising, receiving, by a user equipment (UE), configuration information on carrier aggregation (CA) of at least one frequency division duplex (FDD) cell and at least one time division duplex (TDD) cell; and adjusting, by the UE, starting timing of a UL subframe in a cell participating in the CA.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: August 27, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingyang Li, Chengjun Sun
  • Patent number: 10368260
    Abstract: An example of the present disclosure provides a method and User Equipment (UE) apparatus for measuring a Channel State Indication (CSI)-Reference Signal (RS), by utilizing multiple CSI-RS resources, which includes: receiving, by a User Equipment (UE), a signaling, in which the signaling indicates a multiple CSI-RS resource combination, which corresponds to a CSI-RS Reference Signal Receiving Power (RSRP), and/or, a CSI-RS Reference Signal Receiving Quality (RSRQ), and corresponding configuration information; obtaining, by the UE, a resource location corresponding to the obtained multiple CSI-RS resource combination, and the corresponding configuration information from the signaling; measuring, by the UE, the CSI-RS at the corresponding resource location, and reporting a measurement result.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 30, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xutao Zhou, Haijie Qui, Chengjun Sun, Zixiong Chen
  • Patent number: 10362545
    Abstract: The present disclosure provides several methods, user equipment (UEs) and base stations for transmitting uplink signals. After receiving uplink synchronization command information, the UE may transmit an uplink signal on at least one idle unlicensed cell. Besides, the UE may try to transmit the uplink signal on multiple uplink signal resources within an uplink signal transmission window. By using the present disclosure, transmission probability of uplink signals may be improved, and time delay of uplink synchronization may be shortened.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: July 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yi Wang, Shichang Zhang, Yingyang Li, Chengjun Sun, Jingxing Fu
  • Patent number: 10355812
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A transmission method for multiple access is provided. The transmission method including performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence, performing, by the transmitter, symbol modulation on the coded sequence, performing, by the transmitter, grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Qi Xiong, Bin Yu, Chen Qian, Chengjun Sun
  • Patent number: 10348529
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a receiving device in a wireless communication system comprises determining inter-symbol interference between symbols in a received signal, determining a location of a receive detection window according to the inter-symbol interference, and demodulating the received signal based on the location of the receive detection window. A receiving device includes at least one transceiver, and at least one processor configured to determine inter-symbol interference between symbols in a received signal, determine a location of a receive detection window according to the inter-symbol interference, and demodulate the received signal based on the location of the receive detection window.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chen Qian, Bin Yu, Chengjun Sun
  • Patent number: 10327237
    Abstract: The present disclosure provides a hybrid duplex communication method and apparatus. Configuration information is obtained. The configuration information includes locations of special sub-frames on the first carrier, and a transmission direction of each sub-frame on the second carrier. Sounding Reference Symbol (SRS) is sent on a special sub-frame. when all sub-frames on the second carrier are UL sub-frames, the UE may communicate with the BS on the first carrier and the second carrier according to the FDD mode; when the second carrier is used for UL and DL transmission in time division multiplexing mode, the UE may communicate with the BS on DL resources of the first carrier and UL resources of the second carrier according to the FDD mode, and/or, the UE may communicate with the BS on DL resources of the second carrier and UL resources of the second carrier according to the TDD mode.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: June 18, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bin Yu, Shichang Zhang, Chengjun Sun
  • Publication number: 20190182781
    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Inventors: Shichang ZHANG, Bin YU, Chengjun SUN
  • Publication number: 20190182847
    Abstract: Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.
    Type: Application
    Filed: January 31, 2019
    Publication date: June 13, 2019
    Inventors: Yingyang LI, Chengjun SUN
  • Patent number: 10313067
    Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 4, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shichang Zhang, Yingyang Li, Jingxing Fu, Yi Wang, Chengjun Sun, Lixiang Xu
  • Patent number: 10314016
    Abstract: A method and an apparatus are provided for HARQ-ACK feedback information transmission in a traffic adaptive TDD system. The method includes receiving, by a User Equipment (UE), a System Information Block (SIB); obtaining, by the UE, a TDD uplink and downlink configuration that is indicated by current system information and does not support traffic adaptive UE, from the SIB; identifying, by the UE, implicit resources of Physical Uplink Control Channel (PUCCH) based on the TDD uplink and downlink configuration; obtaining, by the UE, a HARQ-ACK timing that supports a traffic adaptive UE; and transmitting, by the UE, the HARQ-ACK feedback information on determined PUCCH resources using a determined PUCCH format, based on the obtained HARQ-ACK timing.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 4, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jingxing Fu, Chengjun Sun, Yingyang Li
  • Patent number: 10306555
    Abstract: A method and an apparatus for measuring an inter-frequency neighboring cell is provided. The method comprises obtaining a time requirement of cell identification of a specific carrier, obtaining a time requirement of cell measurement of the specific carrier, identifying a new cell on the corresponding specific carrier in the time requirement of the cell identification of the specific carrier, measuring Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ) of an identified cell in the time requirement of the cell measurement of the specific carrier, and reporting a measurement result of the identified cell according to a configured measurement event, wherein the specific carrier is different from other carriers, and the time requirement of the cell identification of the specific carrier is different from time requirements of the cell identification of other carriers.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: May 28, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xutao Zhou, Chengjun Sun, Gert-Jan Van Lieshout
  • Patent number: 10292152
    Abstract: The present disclosure discloses cache-based data transmission methods and apparatuses. The method is implemented as follows. An apparatus where a caching node is located reports a caching capability to a network side, and the caching node is configured to cache data. The network side sends a cache indicating parameter to the apparatus where the caching node is located, and maintains a data list. Wherein, the cache indicating parameter is configured to control the caching node to cache the data which has the property of high repetition probability and/or high cache utilization, and the data list is a list of the data cached in the caching node. When the caching node has cached data requested by a UE, the UE obtains the requested data from the caching node.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 14, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong Wang, Lixiang Xu, Chengjun Sun, Bin Yu