Patents by Inventor Guotong Wang

Guotong Wang 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: 20210105753
    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for time domain resource allocations in wireless communications systems. Disclosed embodiments include time-domain symbol determination and/or indication using a combination of higher layer and downlink control information signaling for physical downlink shared channel and physical uplink shared channel; time domain resource allocations for mini-slot operations; rules for postponing and dropping for multiple mini-slot transmission; and collision handling of sounding reference signals with semi-statically or semi-persistently configured uplink transmissions. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: November 25, 2020
    Publication date: April 8, 2021
    Applicant: Apple Inc.
    Inventors: Yushu ZHANG, Alexei DAVYDOV, Guotong WANG, Gang XIONG, Hong HE
  • Patent number: 10972238
    Abstract: Technology for a next generation node B (gNB), operable to use phase tracking reference signals (PT-RS) is disclosed. The gNB can identify a modulation and coding 5 scheme (MCS) for the UE for a bandwidth part (BWP) with a subcarrier spacing (SCS). The gNB can select a time density of the PT-RS based on the MCS. The gNB can select a frequency density of the PT-RS based on an allocated bandwidth in the BWP. The gNB can encode the time density and the frequency density, for the PT-RS for transmission to the UE in higher layer signaling.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 6, 2021
    Assignee: APPLE INC.
    Inventors: Yushu Zhang, Alexei Davydov, Gang Xiong, Wook Bong Lee, Guotong Wang
  • Patent number: 10966183
    Abstract: Technology for a user equipment (UE) configured to perform beam failure recovery. The UE can encode a beam failure recovery (BFR) request for transmission on a physical random-access channel (PRACH) or a physical uplink control channel (PUCCH) to a next generation node B (gNB). The UE can monitor a dedicated physical downlink control channel (PDCCH) control resource set (CORESET) for a response from the gNB to the beam failure recovery request. The UE can select a default physical downlink shared channel (PDSCH) beam, wherein it is assumed, at the UE that a same quasi co-location (QCL) assumption for a PDSCH as a QCL assumption for the dedicated PDCCH CORESET; or a PDSCH demodulation reference signal (DMRS) is QCLed with a downlink (DL) reference signal (RS) of an identified candidate beam by the UE. The UE can decode a beam failure recovery request response from the gNB.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 30, 2021
    Assignee: APPLE INC.
    Inventors: Guotong Wang, Alexei Davydov, Yushu Zhang
  • Patent number: 10951290
    Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Victor Sergeev, Guotong Wang, Alexei Davydov, Gang Xiong
  • Patent number: 10925116
    Abstract: A UE can include processing circuitry coupled to memory. To configure the UE for semi-persistent scheduling (SPS) transmission or a grant-free transmission, the processing circuitry is to decode RRC signaling from a base station, the RRC signaling configuring a plurality of transmission configuration information (TCI) candidates indicating a first set of transmission beams for an initial transmission on an SPS PDSCH. The initial transmission uses an initial transmission beam that is selected based on a TCI beam index. A MAC CE from the base station is decoded, the MAC CE indicating a re-configuration of the plurality of TCI candidates to include at least a second set of transmission beams for the SPS PDSCH. A transmission beam is selected from the second set of transmission beams based on the TCI beam index. Downlink data received in a subsequent transmission via the selected transmission beam on the SPS PDSCH is decoded.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 16, 2021
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Gang Xiong, Guotong Wang, Alexei Vladimirovich Davydov
  • Patent number: 10924175
    Abstract: Network devices and systems in 5G and new radio (NR) infrastructures can utilize beam management operations to ensure communications for beam management procedure triggering including beam reporting, even during fall-back mode when the current receive (Rx) beam for downlink (DL) and transmit (Tx) beam for uplink (UL) fail. Additionally, reduction in overhead can be achieved with a reference beam pair link based beam reporting in a fall-back mode or not. This beam reporting can be a group based beam reporting and based on Reference Signal Received Powers (RSRPs) of beams and a differential RSRP corresponding thereto.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: February 16, 2021
    Assignee: Apple Inc.
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov, Gang Xiong
  • Publication number: 20200403683
    Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to detect a beam failure event. The second circuitry may be operable to generate a beam failure recovery request for transmission to the gNB, in response to the beam failure event. The third circuitry my be operable to monitor for Physical Downlink Control Channel (PDCCH) in a search space configured by the gNB, subsequent to a transmission of the beam failure recovery request.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Applicant: Apple Inc.
    Inventors: Alexei DAVYDOV, Guotong WANG, Yushu ZHANG, Seunghee HAN, Dae Won LEE, Gang XIONG
  • Patent number: 10873969
    Abstract: Technology for a user equipment (UE) operable for beam management is disclosed. The UE can be configured to decode, at the UE, a transmission configuration indicator (TCI), wherein the TCI is configured for a control channel and a data channel for all bandwidth parts (BWPs) of the UE or all component carriers (CCs) of the UE. The UE can be configured to decode, at the UE, a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS) for beam management with a repetition parameter set to “ON” transmitted in one BWP or one CC in a first set of symbols. The UE can be configured to identify, at the UE, a scheduling restriction for the first set of symbols for the control channel and the data channel, wherein the scheduling restriction indicates that downlink transmission in the first set of symbols is not expected.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 22, 2020
    Assignee: APPLE INC.
    Inventors: Alexei Davydov, Hong He, Gang Xiong, Sameer Pawar, Yushu Zhang, Guotong Wang, Jie Cui, Bishwarup Mondal
  • Patent number: 10868607
    Abstract: User equipment (UE) can include processing circuitry configured to decode radio resource control (RRC) signaling from a base station, the RRC signaling indicating a transmission coding scheme for a physical uplink shared channel (PUSCH) transmission. PUSCH-to-phase tracking reference signal (PT-RS) energy per resource element (EPRE) ratio is determined using the RRC signaling. A PT-RS power boosting factor is determined based on the transmission coding scheme and the PUSCH-to-PT-RS EPRE ratio. The PT-RS is encoded for transmission using a plurality of PT-RS symbols, the transmission using increased transmission power corresponding to the PT-RS power boosting factor. The RRC signaling further includes a flag enabling the PT-RS transmission. The PUSCH-to-PT-RS EPRE ratio is 00 or 01, and the transmission coding scheme is a codebook-based uplink transmission or non-codebook-based uplink transmission.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Gang Xiong, Honglei Miao, Hong He, Guotong Wang, Alexei Vladimirovich Davydov, Seunghee Han, Avik Sengupta
  • Patent number: 10868772
    Abstract: Systems, apparatuses, and methods for control signaling of beam failure detection are disclosed. A beam pair link may be comprised of multiple bandwidth parts (BWPs) or component carriers (CCs). In one embodiment, a beam failure detection reference signal (BFD RS) may be configured, with subsequent BFD RS instances defining a BFD RS periodicity. A BFD periodicity for monitoring the BFD RS may be configured to be less than, or equal or greater than the BFD RS periodicity. A beam failure may be declared if a minimum number of BFD RS instances, either within the BFD periodicity, or nearest the BFD periodicity if no instances fall within the BFD periodicity, fall below a predetermined threshold. The BFD periodicity and BFD RS may be configured for all BWPs/CCs, a subset of BWPs/CCs, or each individual BWP/CC.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Guotong Wang, Alexei Davydov, Hong He, Gang Xiong
  • Patent number: 10863494
    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for time domain resource allocations in wireless communications systems. Disclosed embodiments include time-domain symbol determination and/or indication using a combination of higher layer and downlink control information signaling for physical downlink shared channel and physical uplink shared channel; time domain resource allocations for mini-slot operations; rules for postponing and dropping for multiple mini-slot transmission; and collision handling of sounding reference signals with semi-statically or semi-persistently configured uplink transmissions. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 8, 2020
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Alexei Davydov, Guotong Wang, Gang Xiong, Hong He
  • Publication number: 20200382181
    Abstract: Methods, systems, and storage media are described for phase-tracking reference signal (PTRS) operations for full-power uplink transmissions in new radio (NR) systems. In particular, some embodiments relate to determining PTRS configuration information for a user equipment (UE). Other embodiments may be described and/or claimed.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 3, 2020
    Inventors: Guotong Wang, Alexei Davydov
  • Publication number: 20200382180
    Abstract: Methods, systems, and storage media are described for full power uplink transmissions for new radio (NR) systems. In particular, some embodiments relate to new codebook subsets which may include non-antenna selection transmission precoding matrix indexes (TPMIs) to enable full power uplink transmissions. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 3, 2020
    Inventors: Guotong Wang, Alexei Davydov
  • Publication number: 20200383062
    Abstract: Methods, systems, and storage media are described for power scaling for uplink full power transmissions. In particular, some embodiments relate to configuring sounding reference signal (SRS) resources for physical uplink shared channel (PUSCH) transmissions. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 3, 2020
    Inventors: Guotong Wang, Alexei Davydov
  • Publication number: 20200373989
    Abstract: Provided herein are method and apparatus for beam recovery. It provides an apparatus for a UE (101) including a radio frequency (RF) interface; and processing circuitry configured to: determine beam quality for one or more BPLs between the UE (101) and an access node (111,112); and in response to the beam quality for all of the BPLs being below a first predetermined threshold, encode Physical Random Access Channel (PRACH) data to include a beam recovery request that identifies a candidate beam of the access node (111,112); determine a transmit power for the beam recovery request; and send the PRACH data to the RF interface for transmission to the access node (111,112) with the transmit power. At least some embodiments allow for determining a transmission power to transmit a PRACH, to ensure reception of the PRACH, and allow for determining whether to use a PRACH or a PUCHH.
    Type: Application
    Filed: August 9, 2018
    Publication date: November 26, 2020
    Inventors: Leiqin Yan, Yushu Zhang, Gang Xiong, Guotong Wang, Alexei Davydov
  • Publication number: 20200373988
    Abstract: Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for beam reporting, beam indication and scheduling of data transmission during beam management.
    Type: Application
    Filed: August 9, 2018
    Publication date: November 26, 2020
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov
  • Patent number: 10849152
    Abstract: Technology for a user equipment (UE) operable for beam management is disclosed. The UE can be configured to decode, at the UE, a transmission configuration indicator (TCI), wherein the TCI is configured for a control channel and a data channel for all bandwidth parts (BWPs) of the UE or all component carriers (CCs) of the UE. The UE can be configured to decode, at the UE, a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS) for beam management with a repetition parameter set to “ON” transmitted in one BWP or one CC in a first set of symbols. The UE can be configured to identify, at the UE, a scheduling restriction for the first set of symbols for the control channel and the data channel, wherein the scheduling restriction indicates that downlink transmission in the first set of symbols is not expected.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 24, 2020
    Assignee: APPLE INC.
    Inventors: Alexei Davydov, Hong He, Gang Xiong, Sameer Pawar, Yushu Zhang, Guotong Wang, Jie Cui, Bishwarup Mondal
  • Publication number: 20200367217
    Abstract: Systems and methods for transmission of full power uplink transmission in 5G networks are described. The gNB provides TPMI precoding information in DCI of a PDCCH in which the field size for precoding information and number of layers are fixed irrespective of the SRI. The gNB indicates in RRC signaling the use of codebook-based transmission for UL. If different SRS resources with different number of antenna ports are configured, the bitwidth of the SRI field is the maximum number of ports among the configured SRS resources in an SRS resource set with usage set to ‘codebook’. If the number of ports for a configured SRS resource in the set is less than the maximum number of ports, the most significant bits of the field have a value of ‘0’.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Inventors: Guotong Wang, Alexei Davydov
  • Publication number: 20200366344
    Abstract: Provided herein are method and apparatus for precoder determination and precoder matrix indicator (PMI) indication for uplink transmission. The disclosure provides an apparatus for a user equipment (UE), comprising circuitry configured to: determine a precoder for each of a plurality of precoder resource block groups (PRGs) for an uplink transmission, wherein the plurality of PRGs are configurable in at least one of PRG size and number; and precode each of the plurality of PRGs with a determined precoder; and a memory to store the determined precoder for each of the plurality of PRGs.
    Type: Application
    Filed: August 6, 2018
    Publication date: November 19, 2020
    Inventors: Alexei Davydov, Yushu Zhang, Victor Sergeev, Guotong Wang, Leiqin Yan
  • Publication number: 20200336188
    Abstract: Embodiments of the present disclosure describe methods and apparatuses for group based beam reporting and channel state information reference signal configuration in new radio systems.
    Type: Application
    Filed: September 10, 2018
    Publication date: October 22, 2020
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov