Patents by Inventor Haitong Sun

Haitong 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).

  • Publication number: 20190320419
    Abstract: Certain aspects of the present disclosure provide techniques for indicating a purpose for a reference signal. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving an indication of a purpose of a reference signal (RS) from a base station (BS) and processing the RS in accordance with the indicated purpose.
    Type: Application
    Filed: November 10, 2017
    Publication date: October 17, 2019
    Inventors: Jay Kumar SUNDARARAJAN, Alexandros MANOLAKOS, Wanshi CHEN, Yu ZHANG, Haitong SUN
  • Publication number: 20190313350
    Abstract: Apparatuses, systems, and methods for performing timing synchronization between a base station and a user equipment device within an unlicensed spectrum band. In some scenarios, beamforming tracking may also be performed. Upon determining that a transmission medium within the unlicensed spectrum band is available for transmission, a base station may transmit a plurality of synchronization signal blocks (SSBs), or a plurality of copies of one SSB, with associated remaining minimum system information (RMSI) blocks, within a single time instance within a SSB burst window. The SSBs may be transmitted at different frequency positions and according to distinct beamforming configurations. The SSBs and RMSI blocks may be configured such that a receiving user equipment device may determine the time-domain, and optionally the frequency-domain, position of the SSB and RMSI within the SSB burst window, to allow timing synchronization and optionally beamforming tracking.
    Type: Application
    Filed: April 2, 2019
    Publication date: October 10, 2019
    Inventors: Wei Zhang, Wei Zeng, Tianyan Pu, Haitong Sun, Jia Tang, Dawei Zhang, Sami M. Almalfouh, Zhu Ji, Johnson O. Sebeni
  • Publication number: 20190313454
    Abstract: An enhanced listen-before-talk procedure may be performed by a device for efficiently accessing and utilizing available resources. The procedure may include specifying input parameter values pertaining to intended wireless communications of the device, adjusting output parameter values based on the input parameter values and an access history of the device, and determining whether to access at least a portion of the wireless communication resources to conduct the wireless communications, based at least on the output parameter values. The output parameter values may pertain to wireless communication resources accessible to the device, and the access history may keep track of wireless communication resource accesses previously made by the device.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Inventors: Tianyan Pu, Wei Zhang, Wei Zeng, Haitong Sun, Ping Wang, Dawei Zhang, Sami M. Almalfouh, Johnson O. Sebeni, Li Su
  • Publication number: 20190313382
    Abstract: Techniques are disclosed relating to control data for retransmissions in wireless communications. In various embodiments, a UE sends acknowledgements (e.g., HARQ acknowledgements) at code block group (CBG) granularity. CBGs may be included in codewords that may be transmitted using multiple MIMO layers. In some embodiments, the network is configured to send a new data indicator for each CBG. In some embodiments, the network is configured to use a different number of layers for a retransmission of a CBG than for the original transmission. Thus, the layer-to-CBG or layer-to-codeword mapping may be specified dynamically. In various embodiments, the disclosed techniques may improve overall network bandwidth relative to traditional retransmission techniques.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 10, 2019
    Inventors: Haitong Sun, Yuchul Kim, Johnson O. Sebeni, Wei Zeng, Wei Zhang, Dawei Zhang
  • Publication number: 20190313458
    Abstract: Apparatuses, systems, and methods for transmitting a preamble. The UE may transmit a preamble to a base station in a random access channel (RACH). The RACH may be located in unlicensed spectrum. The bandwidth of the preamble may cover a majority of a nominal channel bandwidth of the RACH. The UE may receive a random access response and establish a connection with the base station in response to receiving the random access response.
    Type: Application
    Filed: April 1, 2019
    Publication date: October 10, 2019
    Inventors: Wei Zeng, Wei Zhang, Tianyan Pu, Haitong Sun, Yuchul Kim, Dawei Zhang
  • Patent number: 10440742
    Abstract: Wireless communications systems and methods related to performing hybrid grant-free and grant-based uplink (UL) data transmission. A wireless communication device dynamically selects between a grant-free mode and a grant-based mode based on at least a transmission configuration. The wireless communication device sends a first data packet in the grant-free mode, based on the selecting, using a first UL resource. The wireless communication device sends a second data packet in the grant-based mode, based on the selecting, using a second UL resource allocated to the wireless communication device. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Haitong Sun, Jay Kumar Sundararajan, Joseph Binamira Soriaga, Wanshi Chen, Peter Gaal, Hao Xu, Tingfang Ji, Wei Zeng
  • Patent number: 10425971
    Abstract: A wireless communications of a contention-based access procedure that reduces collision of reference signals (e.g., when multiple devices select a same reference signal) may support a relatively high user capacity. For a contention-based access procedure, a user equipment may select at least two reference signals and transmit those at least two reference signals in association with a payload to a base station. The payload may be demodulated using each of the at least two reference signals. Thus, if collision occurs with a first reference signal of the at least two reference signals, the payload may still be demodulated using a second reference signal of the at least two reference signals. A base station may demodulate the payload using either first reference signal or the second reference signal. The base station may transmit, to the wireless communications device, a response based on the demodulated payload.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: September 24, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Hung Ly, Wanshi Chen, Tingfang Ji, Hao Xu, Haitong Sun, Heechoon Lee, Kambiz Azarian Yazdi
  • Publication number: 20190281546
    Abstract: A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: Junsung Lim, Yuchul Kim, Wei Zeng, Wei Zhang, Johnson O. Sebeni, Haitong Sun, Dawei Zhang
  • Publication number: 20190281440
    Abstract: Various aspects described herein relate to techniques for mobility mode selection in uplink-based and downlink-based mobility in wireless communications systems. In an aspect, a method for wireless communications may include determining that a user equipment (UE) is operating in a first mobility mode, determining whether the UE satisfies at least one condition associated with mobility of the UE for mobility mode selection, and selecting a second mobility mode based on a determination that the UE satisfies the at least one condition, wherein each of the first mobility mode and the second mobility mode is an uplink mobility mode or a downlink mobility mode. The techniques described herein may apply to different communications technologies, including the 5th Generation (5G) New Radio (NR) communications technology.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Inventors: Hung Dinh LY, Heechoon LEE, Haitong SUN, Tingfang JI, Wanshi CHEN, Keiichi KUBOTA
  • Publication number: 20190281652
    Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: Wei Zhang, Yuchul Kim, Junsung Lim, Haitong Sun, Wei Zeng, Sami M. Almalfouh, Yang Li, Zhu Ji, Dawei Zhang, Johnson O. Sebeni
  • Publication number: 20190281504
    Abstract: This disclosure relates to techniques for a wireless device to indicate a preferred bandwidth part and duty cycle in a cellular communication system. A wireless device and a cellular base station may establish a radio resource control connection. The wireless device may transmit an indication of a preferred bandwidth part, or a preferred communication duty cycle, or both, to the cellular base station. The cellular base station may select a bandwidth part, or communication duty cycle, or both, based at least in part on the indication provided by the wireless device, and may transmit an indication of the selected bandwidth part, communication duty cycle, or both, to the wireless device. The cellular base station and the wireless device may perform cellular communication using the selected bandwidth part, communication duty cycle, or both.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 12, 2019
    Inventors: Yi Su, Yuchul Kim, Pengkai Zhao, Wei Zhang, Sami M. Almalfouh, Wei Zeng, Haitong Sun, Dawei Zhang, Yu Zhang, Tianyan Pu, Zhu Ji, Johnson O. Sebeni, Yang Li
  • Publication number: 20190281545
    Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) exchanging communications with a base station to determine one or more scheduling profiles, such as one or more scheduling-power profiles, where a scheduling-power profile may specify one or more parameters associated with UE communication behavior, e.g., one or more constraints on UE communication behavior and/or slot scheduling of UE communications. In addition, the method may include the UE receiving a slot configuration schedule from the base station. The slot configuration schedule may be based on at least one scheduling-power profile of the one or more scheduling-power profiles. Further, the method may include the UE performing communications with the base station based on the at least one scheduling-power profile.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: Yuchul Kim, Wei Zhang, Sami M. Almalfouh, Junsung Lim, Haitong Sun, Wei Zeng, Dawei Zhang, Zhu Ji, Yang Li, Johnson O. Sebeni
  • Publication number: 20190274165
    Abstract: Apparatuses, systems, and methods for a wireless device and base station transmitting and/or receiving request to send (RTS) and clear to send (CTS) messages in 5G New Radio. The RTS/CTS messages may be comprised within a single self-contained mini slot. The RTS/CTS message design may provide for link adaptation and/or beamforming.
    Type: Application
    Filed: February 19, 2019
    Publication date: September 5, 2019
    Inventors: Tianyan Pu, Wei Zhang, Wei Zeng, Haitong Sun, Johnson O. Sebeni, Dawei Zhang, Sami M. Almalfouh
  • Publication number: 20190268936
    Abstract: Aspects of the present disclosure provide for scheduling multiple types of uplink grants for a single user equipment to support different types of service with different traffic patterns and quality of service (QoS) requirements. In some aspects of the disclosure, the user equipment may be configured with uplink grants for different types of semi-persistent scheduling, along with a dynamic uplink grant. In some examples, the different types of semi-persistent scheduling may include dedicated semi-persistent scheduling and contention-based semi-persistent scheduling.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Inventors: Haitong SUN, Wanshi CHEN
  • Patent number: 10389467
    Abstract: Aspects of the present disclosure provide for the transmission of a cell identifier of a serving cell to a user equipment (UE). A Physical Cell Identification Channel (PCICH) is defined for carrying the cell identifier of the serving cell within an uplink-based mobility framework. In some examples, the PCICH may be transmitted in response to a trigger event that requires the user equipment to have knowledge of the cell identifier. For example, the UE may require the cell identifier to demodulate signals received from the serving cell and facilitate transmission and/or reception of user data traffic with the serving cell.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: August 20, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Hung Ly, Joseph Binamira Soriaga, Haitong Sun, Tingfang Ji
  • Publication number: 20190253920
    Abstract: Apparatuses, systems, and methods for a wireless device and base station using a first radio access technology to monitor traffic load on a second radio access technology. A wireless device may monitor traffic of the second radio access technology and may transmit one or more traffic load reports to the base station. The base station may, based on the report(s) and its own observations, determine whether a hidden network of the second radio access technology is present at the wireless device.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 15, 2019
    Inventors: Wei Zhang, Tianyan Pu, Haitong Sun, Wei Zeng, Dawei Zhang, Sami M. Almalfouh, Johnson O. Sebeni
  • Publication number: 20190253137
    Abstract: Techniques are disclosed relating to handling preemptive data services in cellular wireless transmissions. In some embodiments, a device wirelessly transmits uplink data for a first data service during a time dimension duplex (TDD) scheduled transmission interval using a first frequency band. While transmitting, in these embodiments, the device also monitors a downlink control channel that uses a second frequency band that does not overlap with the first frequency band. The downlink control channel may be dedicated for preemption indicators that indicate another service is preempting scheduled resources. In response to detecting an indicator in the downlink control channel of communications for a second data service in the first frequency band during the scheduled transmission interval, the device may reduce the transmission of the uplink data on resources used for the communications for the second data service (e.g., by blanking or transmitting at a lower power).
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Inventors: Haitong Sun, Wei Zeng, Dawei Zhang
  • Publication number: 20190254120
    Abstract: A hierarchical beamforming structure may help reduce network traffic overhead for transmission of beam indication (information) and enable efficient Transmission Configuration Indication, while facilitating beam tracking between a base station(s) and a mobile device(s) during downlink communications. Downlink control information (DCI) may be expanded to carry/transmit a beam/QCL (quasi co-location) indication for a control resource set (CORESET) for monitoring a next instance of a physical control channel. Error resilient design techniques may be employed to further improve device mobility while increasing the flexibility and reducing the latency for GC-PDCCH/PDCCH beam/QCL indications. For example, the aggregation level for select DCI (e.g.
    Type: Application
    Filed: January 11, 2019
    Publication date: August 15, 2019
    Inventors: Wei Zhang, Haitong Sun, Wei Zeng, Yuchul Kim, Dawei Zhang, Sami M. Almalfouh, Johnson O. Sebeni
  • Patent number: 10383073
    Abstract: Certain aspects of the present disclosure provide techniques for supporting UL-based mobility without DL zone signals. A DL zone signal may refer to a zone synchronization signal or a zone measurement reference signal. As described herein, a UE may perform certain operations upon power-up or RLF recovery, perform operations in each DRx cycle, and/or perform inter-zone handovers without relying on DL zone signals. Thus, aspects create a more user-centric environment and reduce and/or avoid transmission DL zone signals.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 13, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Kambiz Azarian Yazdi, Haitong Sun, Tingfang Ji, Hung Ly
  • Publication number: 20190222409
    Abstract: Various aspects described herein relate to techniques for synchronization channel design and signaling in wireless communications systems (e.g., a 5th Generation (5G) New Radio (NR) system). In an aspect, a method includes identifying a frequency band supported by a user equipment (UE), identifying one or more frequency locations based on the identified frequency band, and the one or more frequency locations are a subset of synchronization raster points used for synchronization signal transmission. The method further includes searching for at least one synchronization signal based on the one or more identified frequency locations.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Hung LY, Tingfang JI, Heechoon LEE, Haitong SUN, John Edward SMEE