Patents by Inventor Hongbo Si

Hongbo Si 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: 20210288773
    Abstract: Methods and apparatus for channel state information reference signal (CSI-RS) in RRC_IDLE/INACTIVE state. A method for operating a user equipment (UE) includes receiving a first configuration for periodic CSI-RS/tracking reference signal (TRS) reception occasions for idle/inactive UEs. A periodic CSI-RS/TRS reception occasion includes one or more CSI-RS resources, and each of the one or more CSI-RS resources is associated with a spatial reception parameter. The method further includes receiving a second configuration for a paging occasion (PO). The PO includes a number of physical downlink control channel (PDCCH) reception occasions The method further includes receiving an availability indication for one or more periodic CSI-RS/TRS reception occasions from the periodic CSI-RS reception occasions, receiving the one or more periodic CSI-RS/TRS reception occasions in time before the PO; and determining a time or frequency offset based on the one or more periodic CSI-RS/TRS reception occasions.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 16, 2021
    Inventors: Qiongjie Lin, Hongbo Si
  • Patent number: 11122497
    Abstract: Apparatuses and methods for synchronization signal (SS) block index and timing indication in wireless communication systems. A method of operating a user equipment (UE) includes receiving, from a base station (BS), sets of higher-layer configuration information. When configured for mobility measurement on SS and physical broadcast channel (PBCH) (SS/PBCH) blocks, the UE identifies, based on one of the sets of higher-layer configuration information, a first set of SS/PBCH blocks configured for the mobility measurement; and measures and reports mobility measurement quantities for the first set of SS/PBCH blocks. When configured for receiving a physical downlink shared channel (PDSCH), the UE identifies, based on another of the sets of higher-layer configuration information, a second set of SS/PBCH blocks configured for the UE; and receives the PDSCH with rate matching around a SS/PBCH block included in the second set of SS/PBCH blocks.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: September 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hao Chen, Young-Han Nam, Chao He, Vikram Chandrasekhar, Hongbo Si, Boon Loong Ng
  • Publication number: 20210282228
    Abstract: A UE in a wireless communication system supporting a shared spectrum channel access is provided. The method comprises: determining a set of DSCH transmission windows based on a window periodicity, a window duration, and a window offset; determining a first set of SS/PBCH blocks within a DSCH transmission window of the set of DSCH transmission windows, wherein the first set of SS/PBCH blocks is QCLed; determining a second set of SS/PBCH blocks across at least two DSCH transmission windows being different DSCH windows of the set of DSCH transmission windows, wherein the second set of SS/PBCH blocks is QCLed; and receiving at least one SS/PBCH block that is located in the first set of SS/PBCH blocks or the second set of SS/PBCH blocks based on QCL information of the first set of SS/PBCH blocks or the second set of SS/PBCH blocks within the DSCH transmission window.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Inventors: Hongbo Si, Yingzhe Li
  • Patent number: 11109448
    Abstract: A UE in a wireless communication system supporting a shared spectrum channel access is provided. The method comprises: determining a set of DSCH transmission windows based on a window periodicity, a window duration, and a window offset; determining a first set of SS/PBCH blocks within a DSCH transmission window of the set of DSCH transmission windows, wherein the first set of SS/PBCH blocks is QCLed; determining a second set of SS/PBCH blocks across at least two DSCH transmission windows being different DSCH windows of the set of DSCH transmission windows, wherein the second set of SS/PBCH blocks is QCLed; and receiving at least one SS/PBCH block that is located in the first set of SS/PBCH blocks or the second set of SS/PBCH blocks based on QCL information of the first set of SS/PBCH blocks or the second set of SS/PBCH blocks within the DSCH transmission window.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Yingzhe Li
  • Patent number: 11109375
    Abstract: A method of a UE in a wireless communication system supporting a shared spectrum channel access is provided. The UE comprises: receiving, from a BS over a first downlink channel, a SS/PBCH block; determining a transmission window in which the received SS/PBCH block is located; determining whether a CORESET for Type0-PDCCH CSS is present based on the received SS/PBCH block; determining a parameter for a QCL assumption of candidate SS/PBCH blocks within the transmission window; determining a group of QCLed candidate SS/PBCH blocks within the transmission window based on the determined parameter for the QCL assumption; determining a group of slots including the Type0-PDCCH CSS, wherein each slot of the group of slots corresponds to a candidate SS/PBCH block within the group of QCLed candidate SS/PBCH blocks; and receiving, over a second downlink channel, at least one Type0-PDCCH based on the determined groups of slots including the Type0-PDCCH CSS.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Yingzhe Li
  • Patent number: 11108487
    Abstract: A method of a user equipment (UE) in a wireless communication system comprises receiving, from a base station (BS), at least one physical broadcasting channel (PBCH) symbol containing resource elements (REs) mapped for at least one demodulation reference signal (DMRS) sequence over a downlink channel; and determining DMRS REs included in the at least one PBCH symbol, wherein a synchronization signal (SS) block hypotheses is carried in the at least one DMRS sequence that is mapped into the DMRS REs, and wherein the SS block hypotheses includes at least full or partial SS block indices.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 31, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Le Liu, Eko Onggosanusi, Youngbum Kim, Taehyoung Kim
  • Patent number: 11096216
    Abstract: A UE in a wireless communication system is provided. The UE comprises at least one processor configured to identify a DTTC including at least one of a first periodicity, a duration of a first transmission window, or a first timing offset of the first transmission window, wherein the DTTC is identified for the DSCH or RLM in a serving cell, and identify a DMTC including at least one of a second periodicity, a duration of a second transmission window, or a second timing offset of the second transmission window, wherein the DMTC is identified for RRM measurement based on the DSCH. The UE further comprises a transceiver operably connected to the processor, the transceiver configured to receive, from a BS, at least one DSCH from a set of DSCH over unlicensed downlink channels based on the identified DTTC, wherein the received at least one DSCH includes a SS/PBCH block.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 17, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Yingzhe Li
  • Publication number: 20210250798
    Abstract: Methods and apparatuses in a wireless communication system. A method of operating a user equipment (UE) includes storing a previous layer 3 (L3) filtered measurement result; receiving L3 filtering configuration information including a first filter coefficient value (k) and a first filtering window value; identifying a generation time instance of the previous L3 filtered measurement result; identifying the first filter coefficient value (k) and the first filtering window value included in the L3 filtering configuration information; in response to receiving a latest measurement result from a lower layer, determining whether the generation time instance of the previous L3 filtered measurement result was obtained within a time window that is a function of a first time instance and a second time instance; and performing an L3 filtering operation to trigger a measurement report based on a result of the determination.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 12, 2021
    Inventors: Kyeongin Jeong, Hongbo Si
  • Publication number: 20210243805
    Abstract: Methods and apparatuses for adapting a channel sensing threshold in a wireless communication system operating with shared spectrum channel access. A method for operating a base station (BS) includes determining whether an antenna configuration for channel sensing is omni-directional or directional and determining a channel sensing threshold. The channel sensing threshold includes two parts: a first part of the channel sensing threshold being common for omni-directional and directional antenna configurations and a second part of the channel sensing threshold depending on the antenna configuration. The method further includes performing a channel sensing procedure based on the antenna configuration and the channel sensing threshold and transmitting downlink (DL) data over a channel based on the channel being sensed as idle in the channel sensing procedure.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 5, 2021
    Inventor: Hongbo Si
  • Publication number: 20210235419
    Abstract: Apparatuses and methods for transmitting or receiving a synchronization signals and physical broadcast channel (SS/PBCH) block in a wireless communication system. A method of operating a user equipment (UE) includes receiving a SS/PBCH block, decoding a content of a PBCH in the SS/PBCH block, and determining whether the wireless communication system operates with shared spectrum channel access based on the content of the PBCH. The method further includes determining the content of the PBCH in a first manner based on determining that the wireless communication system operates with shared spectrum channel access or determining the content of the PBCH in a second manner based on determining that the wireless communication system operates without shared spectrum channel access.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 29, 2021
    Inventor: Hongbo Si
  • Patent number: 11070412
    Abstract: A method of a base station (BS) for transmitting synchronization signals in a wireless communication system. The method comprises generating a primary synchronization signal (PSS) including one of multiple PSS sequences that is generated based on a M-sequence of length 127 in a frequency domain, wherein the PSS indicates part of cell identification (ID) information using a cyclic shift performed on the M-sequence generating the PSS; generating a secondary synchronization signal (SSS) including one of multiple SSS sequences that is generated based on multiple BPSK modulated M-sequences of length 127 in the frequency domain, wherein the SSS indicates the cell ID information using cyclic shifts performed on the M-sequences generating the SSS; and transmitting, to a user equipment (UE), the PSS and SSS over downlink channels.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Young-Han Nam, Eko Onggosanusi, Yuguang Gao, Le Liu
  • Patent number: 11070333
    Abstract: A UE in a wireless communication system is provided. The UE comprises a transceiver configured to receive, from a BS, a SS/PBCH block including the PBCH using a first frequency location (GSCN-Current) over downlink channels, GSCN-Current being based on a set of predefined synchronization rasters that is determined by a global synchronization channel number (GSCN). The UE further comprises a processor operably connected to the transceiver, the processor configured to determine the SS/PBCH block, identify content of a PBCH included in the determined SS/PBCH block, determine a configuration for at least one of the SS/PBCH block that is associated with a PDCCH including scheduling information for RMSI on the GSCN-Current or the SS/PBCH block that is not associated with the PDCCH including the scheduling information for the RMSI on the GSCN-Current.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Young Han Nam
  • Patent number: 11071000
    Abstract: A method of a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station (BS), a set of radio resource control (RRC) parameters comprising at least one measurement object (MO); identifying, based on the at least one MO, at least one modulo value for synchronization signals and physical broadcast channel (SS/PBCH) blocks, and at least one bitmap indicating indices of the SS/PBCH blocks; identifying a set of SS/PBCH block locations based on the at least one modulo value and the at least one bitmap; performing radio resource management (RRM) measurement based on the identified set of SS/PBCH block locations; and transmitting, to the BS via an uplink channel, a measurement report message including a result of the RRM measurement.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Yingzhe Li
  • Publication number: 20210195537
    Abstract: Methods and apparatuses in a wireless communication system. A method of operating a user equipment (UE) includes receiving a synchronization signals and physical broadcast channel (SS/PBCH) block; determining a numerology of the SS/PBCH block, wherein the numerology includes a sub-carrier spacing (SCS) and a cyclic prefix (CP) length; and determining a SS/PBCH block pattern based on the numerology, the SS/PBCH block pattern including candidate SS/PBCH blocks that are mapped to slots within a half frame and a minimum gap (Ngap?) between neighboring candidate SS/PBCH blocks, wherein: Ngap=0 symbol, based on a determination that the SCS included in the numerology of the SS/PBCH block is 120 kHz or 240 kHz; or Ngap?=1 symbol, based on a determination that the SCS included in the numerology of the SS/PBCH block is 480 kHz or 960 kHz.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 24, 2021
    Inventors: Hongbo Si, Yingzhe Li
  • Publication number: 20210160870
    Abstract: Methods and apparatuses in a wireless communication system operating with shared spectrum channel access. A method of operating a UE includes receiving an SS/PBCH block; determining a higher-layer parameter ssb-SubcarrierOffset based on an MIB of a PBCH included in the SS/PBCH block; determining a bit (??+5) from a payload of the PBCH; and determining a first value (kSSB) based on a second value (kSSB). Four LSBs of the second value (kSSB) are indicated by the higher-layer parameter ssb-SubcarrierOffset and an MSB of the second value (kSSB) is indicated by the bit (??+5).
    Type: Application
    Filed: November 5, 2020
    Publication date: May 27, 2021
    Inventors: Hongbo Si, Yingzhe Li
  • Patent number: 11019588
    Abstract: A method of a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from a base station (BS), a synchronization signal and physical broadcast channel block (SS/PBCH block) over a downlink channel of an unlicensed band; identifying a frequency location selected from a set of synchronization raster entries for receiving the SS/PBCH block, wherein the frequency location is aligned with a center resource element (RE) of the SS/PBCH block; determining a first RE in a first lowest frequency domain location of the SS/PBCH block based on the identified frequency location; and determining a second RE in a second lowest frequency domain location of a control resource set #0 (CORESET #0) that includes a fixed frequency offset between the first RE of the SS/PBCH block and the second RE of the CORESET #0.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 25, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbo Si, Yingzhe Li
  • Publication number: 20210153249
    Abstract: A base station (BS) in a wireless communication system is provided. The BS comprises a processor configured to determine frequency units within a frequency range for a bandwidth of an operating carrier, wherein a listen-before-talk (LBT) operation is performed over each of the frequency units; and determine, for each of the frequency units, a set of intended spatial transmit (TX) parameters and a set of spatial receiver (RX) parameters of the LBT operation; and determine a subset of the frequency units for a downlink transmission based on the LBT operation performed over each of the frequency units; and a transceiver operably connected to processor, which is configured to transmit, to a user equipment (UE), downlink channels using the bandwidth corresponding to the determined subset of the frequency units.
    Type: Application
    Filed: January 29, 2021
    Publication date: May 20, 2021
    Inventors: Yingzhe Li, Hongbo Si
  • Patent number: 11013036
    Abstract: A method of a user equipment (UE) in a wireless communication network is provided. The method comprises determining a set of time and frequency domain resources to transmit a physical random access channel (PRACH) preamble over a PRACH, determining a format of the PRACH preamble, wherein the PRACH preamble includes one or more repeated preambles based on a sequence and a cyclic prefix (CP) preceding repeated preamble sequences for the one or more repeated preambles, determining a set of time and frequency domain resources to perform a listen-before-talk (LBT) operation in an unlicensed spectrum, determining whether to transmit the PRACH preamble associated with the LBT operation in the unlicensed spectrum, and transmitting, to a base station (BS), the PRACH preamble in the unlicensed spectrum based on a result of the determination of the LBT operation to transmit PRACH preamble.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: May 18, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yingzhe Li, Hongbo Si
  • Publication number: 20210144581
    Abstract: Methods and apparatuses in a wireless communication system. A method of operating a base station (BS) includes generating an indicator indicating that the BS is capable of supporting a high-capacity radio network temporary identifier (HC-RNTI), wherein a size of the HC-RNTI is based on a configurable granularity; generating a system information block including the indicator and information indicating the size of the HC-RNTI; transmitting, to a user equipment (UE), the system information block; and transmitting, to the UE, the HC-RNTI, wherein the HC-RNTI is allocated to the UE.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 13, 2021
    Inventors: Nishith D. Tripathi, Hongbo Si, Kyeongin Jeong
  • Publication number: 20210136591
    Abstract: A method and apparatus of a user equipment (UE) in a wireless communication system is provided. The method and apparatus comprises: receiving a synchronization signals and physical broadcast channel (SS/PBCH) block; determining whether a shared spectrum channel access is enabled; determining a first index of the SS/PBCH block as a candidate SS/PBCH block index (ISSB1) based on a number of candidate SS/PBCH blocks in a half frame; and determining a second index of the SS/PBCH block as an SS/PBCH block index (ISSB2) based on a quasi-co-location (QCL) parameter (Q) indicated by a PBCH in the SS/PBCH block, wherein the SS/PBCH block index (ISSB2) is determined as: ISSB2=ISSB1 mod Q based on a determination that the shared spectrum channel access is enabled, where mod is a modular operation; or ISSB2=ISSB1 based on the determination that the shared spectrum channel access is not enabled.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Inventors: Hongbo Si, Yingzhe Li