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).

  • Patent number: 11515924
    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: Grant
    Filed: September 3, 2020
    Date of Patent: November 29, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Guotong Wang, Yushu Zhang, Seunghee Han, Dae Won Lee, Gang Xiong
  • Patent number: 11489637
    Abstract: Technology for a Next Generation NodeB (gNB) operable to adapt to a downlink waveform type for wireless transmissions is disclosed. The gNB can encode an indicator of a downlink waveform type of a plurality of downlink waveform types for transmission to a user equipment (UE). The gNB can encode 5 a downlink signal for transmission on a downlink physical channel to the UE using the indicated downlink waveform type in a wireless system operating above a 52.6 gigahertz (GHz) carrier frequency.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: November 1, 2022
    Assignee: APPLE INC.
    Inventors: Alexei Davydov, Gang Xiong, Gregory V. Morozov, Yushu Zhang, Dae Won Lee
  • Publication number: 20220346102
    Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to select one or more recovery channels based on one or more recovery factors; determine a beam recovery frame structure using the selected one or more recovery channels and based at least partially on beam correspondence capabilities; and provide the selected one or more recovery channels and the determined beam recovery frame structure to the RF interface for transmission to a user equipment (UE) device.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Inventors: Yushu Zhang, Wook Bong Lee, Gang Xiong, Hong He, Yongjun Kwak, Daewon Lee, Seung Hee Han, Alexei Davydov, Guotong Wang
  • Publication number: 20220345346
    Abstract: A reference signal sequence to modulate the demodulation reference signal for the Physical Broadcast Channel in New Radio standard is disclosed. Formulas are proposed for calculating the initialization value for the RS sequence generator so as to accord with the characteristics of New Radio.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 27, 2022
    Inventors: Gregory Morozov, Dae Won Lee, Alexei Davydov, Seung Hee Han, Yongjun Kwak
  • Patent number: 11483842
    Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 25, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Gregory V. Morozov, Victor Sergeev
  • Patent number: 11476985
    Abstract: Methods and apparatuses for channel state information report on physical uplink shared channel in new radio are provided. An apparatus for a user equipment (UE), comprising: a processor, configured to generate a uplink (UL) signal data for a physical uplink shared channel (PUSCH) by using a resource mapping scheme; and a radio frequency (RF) interface, configured to receive the generated UL signal data from the processor, wherein at least a part of the resource mapping scheme is predefined, configured by higher layer signalling, or indicated in downlink control information (DCI).
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: October 18, 2022
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Alexei Davydov, Seunghee Han, Yushu Zhang, Joonyoung Cho
  • Patent number: 11477685
    Abstract: An apparatus configured to be employed in a user equipment (UE) associated with a new radio (NR) communication system is disclosed. The apparatus comprises one or more processors configured to process a beam reporting configuration signal received from a gNodeB associated therewith. In some embodiments, the beam reporting configuration signal comprises a measurement quantity information on one or more measurement quantities to be reported by the UE to the gNodeB during beam reporting, for a set of beams associated with the gNodeB, wherein the one or more measurement quantities comprises layer 1 signal to interference plus noise ratio (L1-SINR), or both L1-SINR and L1 reference signal receive power (RSRP). In some embodiments, the beam reporting configuration signal further comprises a reference signal information on a reference signal to be utilized by the UE for measuring the one or more measurement quantities for the set of beams associated with the gNodeB.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: October 18, 2022
    Assignee: Intel Corporation
    Inventors: Yushu Zhang, Guotong Wang, Alexei Davydov, Gang Xiong
  • Publication number: 20220330208
    Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).
    Type: Application
    Filed: May 26, 2022
    Publication date: October 13, 2022
    Inventors: Dae Won LEE, Seunghee HAN, Gregory Vladimirovich MOROZOV, Alexei DAVYDOV, Yongjun KWAK
  • Publication number: 20220321197
    Abstract: Various embodiments herein provide techniques for minimum mean-square error interference rejection combining (MMSE-IRC) processing of a received signal, distributed between a baseband unit (BBU) and a remote radio unit (RRU). The RRU may perform uplink receive beamforming (e.g., using maximum ratio combining (MRC)) based on multiple channel measurements (e.g., a set of multiple sounding reference signal (SRS) channel measurements) obtained on respective measurement signals transmitted by a user equipment (UE). The RRU may send the processed signal to the BBU for further processing. The BBU may perform MMSE-IRC based on the processed signal received from the RRU, e.g., using demodulation reference signals (DM-RSs). Other embodiments may be described and claimed.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 6, 2022
    Inventors: Alexei Davydov, Artyom Putilin, Bishwarup Mondal
  • Publication number: 20220321304
    Abstract: An apparatus of a New Radio (NR) User Equipment (UE), a method and system. The apparatus includes one or more processors to encode a two part CSI including: encode a two part CSI including: encoding information bits of a first channel state information (CSI) type and information bits of a second CSI part to generate, respectively, encoded bits of a first CSI part and encoded bits of a second CSI part, a payload size of the second CSI part being based on encoded bits of the first CSI part and further being encoded separately from information bits of the first CSI part; and mapping the encoded bits of the first CSI part onto a first physical resource and the encoded bits of the second CSI part onto a second physical resource different from the first physical resource; and configure the two part CSI in a long or short PUCCH for transmission to a NR evolved Node B (gNodeB).
    Type: Application
    Filed: June 23, 2022
    Publication date: October 6, 2022
    Inventors: Alexei Davydov, Gang Xiong, Yushu Zhang, Victor Alexandrovich Sergeev, Joonyoung Cho
  • Patent number: 11463999
    Abstract: Dynamic transmission of non-zero power channel state information resource signals and interference measurement resources is described. Such dynamic transmission reduces or eliminates a need to buffer and store channel and interference measurements The described approach also reduces the overhead due to transmission of those resources and enables flexible time-domain channel state information requests.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Vadim Sergeyev, Gregory Morozov, Ilya Bolotin
  • Patent number: 11463141
    Abstract: Codebook designs are disclosed for full-dimensional multiple-input-multiple output (FD-MIMO) wireless cellular systems. The FD-MIMO cookbooks employ channel state information reference signals (CSI-RS). The codebook designs are used in beamforming CSI-RSs by the enhanced nodeB (eNB), where the CSI-RS is sent to the user equipment (UE), enabling the UE to perform channel estimation. The codebooks support beam selection, co-phasing between polarizations, and beam combining.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Yuan Zhu, Hong He
  • Patent number: 11464075
    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: Grant
    Filed: September 10, 2018
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Gang Xiong, Guotong Wang, Alexei Davydov
  • Patent number: 11457510
    Abstract: A user equipment (UE) may receive information, via radio resource control (RRC) signaling, regarding a search space of a physical downlink control channel (PDCCH) for obtaining downlink control information (DCI) from a radio access network (RAN) node. Based on a slot format (SF) index in the DCI, the UE may determine a slot format for communicating with the RAN node, and communicate with the RAN node in accordance with the slot format. Additionally, a UE may communicate UE capability information, which may include a maximum number of blind decode attempts (BDAs), to the RAN node. The UE may determine shortened channel control elements (sCCEs) to be used, by the RAN node, to transmit shortened downlink control information (sDCI) via a shortened physical downlink control channel (sPDCCH), obtain sDCI by monitoring the sPDCCH in accordance with the determined sCCEs, and communicate with the RAN node in accordance with the sDCI.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 27, 2022
    Assignee: Apple Inc.
    Inventors: Debdeep Chatterjee, Gang Xiong, Hong He, Yongjun Kwak, Alexei Davydov, Hwan-Joon Kwon, Dae Won Lee
  • Publication number: 20220295496
    Abstract: Techniques discussed herein can facilitate reduced density CSI (Channel State Information)-RS (Reference Signals). One example embodiment can be employed at a UE (User Equipment) and can comprise processing circuitry configured to receive and process a configuration message that comprises one or more configuration parameters for one or more CSI (Channel State Information)-RS (Reference Signal) APs (Antenna Ports) of a configurable density CSI-RS. The configuration parameters indicate a density of CSI-RS resource per Physical Resource Block (PRB) per CSI-RS AP and a PRB offset. The processing circuitry is further configured to determine a set of REs (Resource Elements) for the one or more CSI-RS APs of the configurable density CSI-RS based on the one or more configuration parameters and perform measurements on the configurable density CSI-RS from the set of REs to determine one or more CSI parameters. The one or more configuration parameters are provided per CSI-RS resource configuration.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 15, 2022
    Inventors: Alexei Davydov, Gregory V. Morozov, Sameer Pawar
  • Publication number: 20220287066
    Abstract: Techniques discussed herein can facilitate multi-transmission reception point (multi-TRP) operation for new radio (NR). One example apparatus may be employed at a user equipment (UE) and may comprise one or more processors configured to transmit uplink control information (UCI) on two physical uplink control channels (PUCCHs). The two PUCCHs occupy different symbols in the same slot.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Inventors: Gang Xiong, Joonyoung Cho, Alexei Davydov, Seunghee Han, Yushu Zhang
  • Patent number: 11432278
    Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system that support resource sharing between NR physical downlink shared channel (PDSCH) and NR physical downlink control channel (PDCCH) is disclosed. The apparatus comprises a processing circuit configured to generate a PDSCH dynamic rate matching resource set configuration signal comprising information on one or more overlap resource sets, wherein each the one or more overlap resource sets comprises time-frequency resources on which any overlapping PDSCH may or may not be mapped, based on an indication provided within a PDSCH rate matching indicator signal.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 30, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Debdeep Chatterjee, Hong He, Gang Xiong, Hwan-Joon Kwon
  • Publication number: 20220272706
    Abstract: Various embodiments herein provide techniques for downlink control information (DCI) based beam indication in a wireless cellular network. Other embodiments may be described and claimed.
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Inventors: Avik Sengupta, Alexei Davydov, Bishwarup Mondal, Debdeep Chatterjee, Gang Xiong
  • Publication number: 20220263556
    Abstract: Systems, devices, and techniques associated with coefficients for channel state information (CSI) reports are described. A described technique includes receiving, at a user equipment (UE), a CSI configuration and a codebook configuration, the codebook configuration specifying a codebook; determining a precoding matrix indicator (PMI) that specifies a precoding matrix associated with the codebook, wherein the precoding matrix is based on spatial-domain (SD) vectors and linear combining coefficients; and transmitting CSI report containing the PMI in accordance with the CSI configuration.
    Type: Application
    Filed: March 19, 2020
    Publication date: August 18, 2022
    Inventors: Victor Sergeev, Alexei Davydov, Dmitry Dikarev
  • Patent number: 11419110
    Abstract: Technology for a user equipment (UE) to perform reduced transmission time interval (TTI) data transmission within a wireless communication network is disclosed. The UE can process a process, for transmission to an eNodeB, control information within a short transmission time interval (TTI) over a short resource block (RB) set within a short physical uplink control channel (S-PUCCH), wherein the short TTI is shorter in time than a TTI that has a duration of at least one (1) millisecond, and wherein the S-PUCCH is a subset of resources available for a short physical uplink shared channel (S-PUSCH) and the S-PUSCH is a subset of resources available for a legacy PUSCH transmission; and process, for transmission to the eNodeB, data within the short TTI over the short TTI RB set within the S-PUSCH.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 16, 2022
    Assignee: APPLE INC.
    Inventors: Christian Ibars Casas, Seunghee Han, Hong He, Alexei Davydov