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).

  • BEAM FAILURE RECOVERY OPERATION
    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
  • Beam management for carrier aggregation (CA)
    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
  • Phase tracking reference signal (PT-RS) power boosting
    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
  • Control signaling of beam failure detection
    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
  • Control signaling for uplink multiple input multiple output, channel state information reference signal configuration and sounding reference signal configuration
    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
  • PHASE-TRACKING REFERENCE SIGNAL (PTRS) OPERATIONS FOR FULL POWER UPLINK TRANSMISSIONS IN NEW RADIO (NR) SYSTEMS
    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
  • POWER SCALING FOR UPLINK FULL POWER TRANSMISSIONS IN NEW RADIO SYSTEMS
    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
  • FULL-POWER UPLINK TRANSMISSIONS FOR NEW RADIO SYSTEMS
    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
  • APPARATUS AND METHOD FOR BEAM REPORTING, BEAM INDICATION AND SCHEDULING OF DATA TRANSMISSION DURING BEAM MANAGEMENT
    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
  • METHOD AND APPARATUS FOR BEAM RECOVERY
    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
  • Beam management for carrier aggregation (CA)
    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
  • METHOD AND APPARATUS FOR PRECODER DETERMINATION AND PRECODER MATRIX INDICATOR (PMI) INDICATION FOR UPLINK TRANSMISSION
    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
  • NR DCI CONFIGURATION FOR UPLINK POWER TRANSMISSION
    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
  • Group Based Beam Reporting and Channel State Information Reference Signal Configuration in New Radio Systems
    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
  • Beam failure recovery operation
    Patent number: 10784943
    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 may 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: Grant
    Filed: October 22, 2018
    Date of Patent: September 22, 2020
    Assignee: Apple, Inc.
    Inventors: Alexei Davydov, Guotong Wang, Yushu Zhang, Seunghee Han, Dae Won Lee, Gang Xiong
  • METHOD AND APPARATUS FOR BEAM FAILURE RECOVERY
    Publication number: 20200275524
    Abstract: Provided herein are method and apparatus for beam recovery. An embodiment provides an apparatus for a user equipment (UE) including a radio frequency (RF) interface; and processing circuitry configured to: determine, in response to a beam failure, a channel for transmission of a beam failure recovery request as one of: a Physical Uplink Control Channel (PUCCH), a non-contention based Physical Random Access Channel (PRACH), and a contention based Physical Random Access Channel (PRACH); and encode the beam failure recovery request for transmission to an access node via the determined channel using the RF interface. At least some embodiments allow for transmission of a beam failure recovery request for beam recovery, allow for beam failure detection or new Tx beam identification, and allow for determining whether to configure a scheduling delay between a PDCCH and a PDSCH.
    Type: Application
    Filed: September 10, 2018
    Publication date: August 27, 2020
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov
  • METHOD AND APPARATUS FOR CONFIGURATION OF REFERENCE SIGNAL
    Publication number: 20200275523
    Abstract: Provided herein are method and apparatus for configuration of a Reference Signal (RS) and a Tracking Reference Signal (TRS). An embodiment provides an apparatus for an access node including a radio frequency (RF) interface; and processing circuitry configured to: determine a time density of a Tracking Reference Signal (TRS) based on a subcarrier spacing of a bandwidth part (BWP) in a current component carrier for a user equipment (UE); determine a frequency density of the TRS based on a bandwidth of the TRS; determine a quasi co-location (QCL) relationship of the TRS; and encode the TRS based on at least one of the time density, the frequency density and the QCL relationship for transmission to the UE via the RF interface. At least some embodiments allow for beam management, and allow for fine time and/or frequency offset tracking.
    Type: Application
    Filed: September 10, 2018
    Publication date: August 27, 2020
    Inventors: Yushu Zhang, Gang Xiong, Guotong Wang, Alexei Davydov
  • TWO-STEP RANDOM ACCESS CHANNEL (RACH) IN NEW RADIO (NR) NETWORKS AND SYSTEMS
    Publication number: 20200245373
    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for generation, transmission, and reception of a message A (MsgA) with respect to a two-step random access channel (RACH) procedure in new radio (NR) networks and/or communications. Various embodiments describe how to generate the MsgA that includes a physical random access channel (PRACH) occasion and a MsgA physical uplink shared channel (PUSCH) resource. Certain association, rules, and/or correlation may apply herein. Further, corresponding demodulation reference signal (DMRS) sequence generation is illustrated in accordance with various embodiments. Other embodiments may be described and claimed.
    Type: Application
    Filed: February 6, 2020
    Publication date: July 30, 2020
    Inventors: Gang Xiong, Yongjun Kwak, Sergey Sosnin, Guotong Wang, Yushu Zhang
  • SYSTEM AND METHOD FOR BEAM MANAGEMENT PROCEDURE CONFIGURATION
    Publication number: 20200228180
    Abstract: Systems and methods of beam reporting for multiple DL processes are described. A UE receives a beam management processes configuration that provides information about beam management reference signals for beam management procedures. The UE transmits a UE capability report that indicates beam management capabilities of the UE and, later, an indication of whether the UE intends to engage in beam refinement. The UE measures the beam management reference signals and receives a beam reporting message that indicates at least one of the beam management procedures to report. In response, the UE transmits the beam report. The beam report contains beam management reference signal measurements of the beam management procedures indicated by the beam reporting message.
    Type: Application
    Filed: April 2, 2018
    Publication date: July 16, 2020
    Inventors: Yushu Zhang, Huaning Niu, Wook Bong Lee, Alexei Davydov, Guotong Wang
  • LENGTH-SIX COMPUTER GENERATED SEQUENCES (CGS) FOR UPLINK LOW PEAK-TO-AVERAGE POWER RATIO (PAPR) DEMODULATION REFERENCE SIGNALS (DMRS)
    Publication number: 20200214083
    Abstract: An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for DMRS processing in an NR network, the processing circuitry is to decode higher layer signaling, the higher layer signaling to indicate whether transform precoding is enabled and to indicate a modulation scheme for a physical uplink shared channel (PUSCH) if transform precoding is enabled. A set of low Peak-to-Average-Power-Ratio (PAPR) base sequences of length-6 is generated. A reference signal sequence is generated as a demodulation reference signal (DMRS) using the set of low-PAPR base sequences, based on the modulation scheme if transform precoding is enabled by the higher layer signaling, the modulation scheme being a ?/2-binary phase-shift keying (BPSK) modulation scheme. Mapping of the DMRS to physical resources for transmission using the PUSCH is performed.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Inventors: Avik Sengupta, Alexei Vladimirovich Davydov, Sameer Pawar, Gregory Vladimirovich Morozov, Guotong Wang