Patents by Inventor Alexei Davydov

Alexei Davydov 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: 20220085931
    Abstract: Disclosed are systems and methods of selecting physical downlink control channel (PDCCH) candidates for non-coherent joint transmission (NC-JT) in a wireless network. For instance, first and second sets of ControlResourceSet and SearchSpace parameters can be configured for a UE. The first and second sets of ControlResourceSet and SearchSpace parameters are configured on a first downlink (DL) component carrier to enable NC-JT. A control channel element (CCE) limit can be determined for the first and second sets of ControlResourceSet and SearchSpace parameters. One or more PDCCH candidates can then be selected for the first and second sets of ControlResourceSet and SearchSpace parameters based at least in part on the determined CCE limits. NC-JT communication including at least a first communication from a first transmission and reception point (TRP), and a second communication from a second TRP can then be received.
    Type: Application
    Filed: January 11, 2020
    Publication date: March 17, 2022
    Applicant: Apple Inc.
    Inventors: Bishwarup MONDAL, Debdeep CHATTERJEE, Fatemeh HAMIDI-SEPEHR, Alexei DAVYDOV
  • Publication number: 20220085940
    Abstract: Some embodiments of this disclosure include apparatuses and methods for physical downlink control channel design for a discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform. The apparatuses and methods can include at least operating a base station (BS) to generate one or more physical downlink control channels (PDCCH) in a time division multiplexing (TDM) manner using a Discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform, generate a demodulation reference signal (DMRS) which is multiplexed in the TDM manner with the one or more PDCCH, and transmit the one or more PDCCH and the DMRS to a user equipment (UE).
    Type: Application
    Filed: January 22, 2020
    Publication date: March 17, 2022
    Applicant: Apple Inc.
    Inventors: Gang XIONG, Alexei Davydov, Yushu Zhang, Hong He, Daewon Lee, Jie Zhu
  • Publication number: 20220077942
    Abstract: An approach is described to for new radio (NR) antenna test function (ATF) measurements by a user equipment (UE). The approach includes measuring a first average phase of receive signals on resource elements that carry secondary synchronization signals (SS) received by a reference individual receiver branch. The approach also includes measuring a second average phase of the receive signals on the resource elements that carry secondary synchronization signals received by one other individual receiver branch different from the reference individual receiver branch. The approach further includes determining a difference between the first average phase and the second average phase. An indication of the difference is reported to test equipment.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 10, 2022
    Applicant: Apple Inc.
    Inventors: Andrey CHERVYAKOV, Dmitry BELOV, Aida VERA LOPEZ, Alexei DAVYDOV, Jie CUI
  • Publication number: 20220077982
    Abstract: The present disclosure provides systems and methods for mapping transmission configuration indication (TCI) states to demodulation reference signal (DMRS) ports groups in a wireless network. For instance, a TCI state to DMRS ports group mapping of a user equipment (UE) can be determined. Each DMRS port in a DMRS ports group shares a quasi-co-location (QCL) assumption. The TCI state to DMRS ports group mapping comprises multiple TCI state groups. The TCI state to DMRS ports group mapping corresponds each TCI state group to one or more DMRS ports groups. A TCI state group from the DMRS ports group mapping can be selected for the UE. Data indicative of the selected TCI state group and the corresponding one or more DMRS ports groups can be provided to the UE based at least in part on the TCI state group from the DMRS ports group mapping.
    Type: Application
    Filed: January 7, 2020
    Publication date: March 10, 2022
    Inventors: Yushu Zhang, Bishwarup Mondal, Alexei Davydov, Guotong Wang, Avik Sengupta
  • Publication number: 20220078825
    Abstract: Methods and apparatus are described for methods and apparatus for carrying out wireless communication using Long Term Evolution (LTE) in a frequency band with low peak-to-average-power. The approach includes precoding, in the frequency domain, a plurality of physical channel signals, followed by multiplexing, where the procoding is performed according to predetermined codes with a code length selected based on a length of an entire signal of the multiplexed precoded plurality of physical channel signals. In addition, the approach includes being configured to map the multiplexed precoded plurality of physical channel signals to subcarriers in the frequency band, as well to generate a time domain waveform based on the mapped signals.
    Type: Application
    Filed: January 3, 2020
    Publication date: March 10, 2022
    Applicant: Apple Inc.
    Inventors: Alexei DAVYDOV, Gang XIONG, Jie ZHU, Yushu ZHANG, Guotong WANG, Daewon LEE, Gregory MOROZOV, Sameer PAWAR
  • Publication number: 20220077911
    Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.
    Type: Application
    Filed: January 18, 2020
    Publication date: March 10, 2022
    Applicant: Apple Inc.
    Inventors: Victor SERGEEV, Alexei DAVYDOV, Bishwarup MONDAL, Gregory MOROZOV, Dmitry DIKAREV
  • Publication number: 20220078085
    Abstract: The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed, The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: Apple Inc.
    Inventors: Honglei MIAO, Jeongho JEON, Alexei DAVYDOV, Hong HE, Debdeep CHATTERJEE, Joonyoung CHO, Daewon LEE, Gang XIONG
  • Patent number: 11272530
    Abstract: Embodiments of a User Equipment (UE) and methods of communication are generally described herein. If a higher layer parameter altMCS-Table is configured, and a physical downlink shared channel (PDSCH) is assigned by a downlink control information (DCI) format 1, 1B, 1D, 2, 2A, 2B, 2C, or 2D, the UE may, for some subframe/frame configurations, determine a number of physical resource blocks (PRBs) for the transport block as a maximum of: 1; and a floor function applied to a product of a total number of allocated PRBs, a parameter dependent on a special subframe configuration, and a scaling parameter. For other subframe/frame configurations, the UE may determine the number of PRBs for the transport block as a maximum of: 1; and the floor function applied to a product of the total number of allocated PRBs and the scaling parameter.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Sameer Pawar
  • Publication number: 20220070855
    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for control signaling of uplink transmission for multiple antenna panels.
    Type: Application
    Filed: January 6, 2020
    Publication date: March 3, 2022
    Inventors: Yushu Zhang, Gang Xiong, Guotong Wang, Bishwarup Mondal, Alexei Davydov
  • Publication number: 20220070974
    Abstract: Embodiments of a User Equipment (UE), a generation Node-B (gNB) and methods for communication are generally described herein. The UE may the UE 102 may receive from a gNB, control signaling that indicates: a first pre-coding matrix indicator (PMI) that indicates a first pre-coder for a first sub-band; and a second PMI that indicates a second pre-coder for a second sub-band. The first and second pre-coders may be included in predetermined candidate pre-coders. The UE may encode a physical uplink shared channel (PUSCH) block for transmission. The UE may scale the PUSCH block in the first sub-band by the first pre-coder. The UE may scale the PUSCH block in the second sub-band by the second pre-coder.
    Type: Application
    Filed: October 4, 2021
    Publication date: March 3, 2022
    Inventors: Yushu Zhang, Alexei Davydov, Wook Bong Lee, Dae Won Lee, Seunghee Han
  • Publication number: 20220069882
    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: October 25, 2021
    Publication date: March 3, 2022
    Inventors: Yushu Zhang, Huaning Niu, Wook Bong Lee, Alexei Davydov, Guotong Wang
  • Patent number: 11265091
    Abstract: Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for Reference Signal Received Power (RSRP) measurement and allocation of Downlink (DL) transmission resources. A user equipment (UE) may detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, and determine a subcarrier spacing (SCS) thereof. Mapping the first SS/PBCH block to OFDM symbols may be dependent on the SCS and a first SS/PBCH block index of the first SS/PBCH block. The UE may determine, based on the first SS/PBCH block and the SCS, a number of symbols of the slot or the slot pair for a CORESET for reception of a DL control channel associated with Remaining Minimum System Information (RMSI). The UE may decode the DL control channel in the CORESET. The DL control channel may be configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: March 1, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Seunghee Han, Debdeep Chatterjee, Gregory Morozov, Dae Won Lee, Yongjun Kwak
  • Publication number: 20220060361
    Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.
    Type: Application
    Filed: March 13, 2020
    Publication date: February 24, 2022
    Inventors: Yushu Zhang, Alexei Davydov, Gregory Morozov, Guotong Wang, Dae Won Lee, Gang Xiong, Sameer Pawar, Jie Zhu
  • Publication number: 20220052738
    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: October 4, 2021
    Publication date: February 17, 2022
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov
  • Publication number: 20220052803
    Abstract: An approach is described for an access node configured for ultra-reliable and low latency (URLLC) transmission using multi-transmission reception point (TRP) to a UE. The access node includes processor circuitry and radio front end circuitry. The processor circuitry is configured to allocate resource blocks into a first portion and a second portion based on a resource indication value (RIV), a length of contiguously allocated resource blocks (LRBS) and a fraction. The radio front end circuitry is configured to transmit the first portion to the UE via a first transmission reception point (TRP1), and transmit the second portion to the UE via a second transmission reception point (TRP2).
    Type: Application
    Filed: February 17, 2020
    Publication date: February 17, 2022
    Applicant: Apple Inc.
    Inventors: Bishwarup MONDAL, Avik SENGUPTA, Debdeep CHATTERJEE, Alexei DAVYDOV, Yushu ZHANG
  • Patent number: 11239981
    Abstract: Technology for a next generation node B (gNB) operable to transmit in multiple bandwidth parts (BWPs) is disclosed. The UE can determine a channel state information reference signal (CSI-RS) symbol location in a first bandwidth part (BWP). The UE can determine a CSI-RS symbol location in a second BWP. The UE can encode the CSI-RS in one or more of the first BWP or the second BWP for transmission to a user equipment (UE). The UE can have a memory interface configured to send to a memory the CSI-RS symbol location.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: February 1, 2022
    Assignee: Intel Corporation
    Inventors: Yushu Zhang, Alexei Davydov, Gang Xiong, Sameer Pawar, Guotong Wang
  • Publication number: 20220029870
    Abstract: An apparatus and system to compensate for phase noise in a 5G or 6G DFT-S-OFDM signal are described. An access port (AP)-specific orthogonal cover code (OCC) is applied to phase tracking reference signal (PTRS) symbols in each of a plurality of PTRS groups. The PTRS group are inserted between data symbols to form a data vector prior to perform transform precoding, on the data vector and transmission to a UE. The UE extracts the PTRS symbols from different PTRS APs using the OCC specific to each AP. After extraction, the phase noise for each PTRS group is estimated and used to compensate the data symbols associated with the PTRS group.
    Type: Application
    Filed: October 12, 2021
    Publication date: January 27, 2022
    Inventors: Peng Lu, Alexei Davydov, Jong-Kae Fwu, Sungho Moon, Xiangyang Zhuang
  • Patent number: 11233529
    Abstract: One example aspect of the techniques discussed herein is a User Equipment (UE) comprising processing circuitry configured to determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg); determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block; segment the information block into a plurality of segments; and encode each segment of the plurality of segments via a polar encoder with a code size (N).
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Dmitry Dikarev, Grigory Ermolaev, Ajit Nimbalker, Alexei Davydov, Ashwin Chandrasekaran, Sathishkumar Chellakuhigounder Kulandaivel
  • Patent number: 11233676
    Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message carrying an indicator to indicate a selection of a Sounding Reference Signal (SRS) resource set, wherein the message is received from a gNB. The second circuitry may be operable to generate an SRS transmission, based on the indicator. The apparatus may comprise an interface to send the SRS transmission to a transmission circuitry.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Alexei Davydov, Hong He, Gang Xiong, Sameer Pawar, Guotong Wang
  • Publication number: 20210409111
    Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Dae Won Lee, Seunghee Han, Gregory V. Morozov, Alexei Davydov, Hong He