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: 11375475
    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: Grant
    Filed: July 26, 2018
    Date of Patent: June 28, 2022
    Assignee: Apple Inc.
    Inventors: Dae Won Lee, Seunghee Han, Gregory Vladimirovich Morozov, Alexei Davydov, Yongjun Kwak
  • Publication number: 20220201733
    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: Application
    Filed: January 28, 2022
    Publication date: June 23, 2022
    Inventors: Alexei Davydov, Sameer Pawar
  • Patent number: 11368265
    Abstract: In some embodiments, an apparatus of a Fifth Generation (5G) NodeB (gNB) comprises one or more baseband processors to encode one or more channel state information reference signals (CSI-RS) to be transmitted to a user equipment (UE). The one or more CSI-RS signals comprise a complex sequence mapped to a resource element (RE) such that all CSI-RS ports use an identical sequence for the one or more CSI-RS signals in a symbol. In other embodiments, the gNB comprises one or more baseband processors to encode a scrambling identity (ID) configuration for one or more demodulation reference signals (DMRS), wherein the scrambling ID configuration indicates one of two scrambling IDs to be signaled to a UE.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: June 21, 2022
    Assignee: Apple Inc.
    Inventors: Sameer Pawar, Avik Sengupta, Alexei Davydov
  • Patent number: 11368963
    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: process one or more configuration messages that comprise one or more configuration parameters for one or more CSI (Channel State Information)-RS (Reference Signal) APs (Antenna Ports) of a reduced density CSI-RS, wherein the one or more configuration parameters indicate a PRB (Physical Resource Block) decimation and a PRB offset; determine a set of REs (Resource Elements) for the one or more CSI-RS APs of the reduced density CSI-RS based on the one or more configuration parameters; measure the reduced density CSI-RS from the set of REs to determine one or more CSI parameters.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 21, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Gregory V. Morozov, Sameer Pawar
  • Patent number: 11368962
    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 generate one or more signals for transmission to a user equipment (UE) device, wherein the UE device has a plurality of antenna panels; receive a beam state report from the RF interface from the UE device; select beams for communication with one or more of the plurality of antenna panels based on the received beam state report.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: June 21, 2022
    Assignee: Intel Corporation
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov, Gang Xiong, Wook Bong Lee
  • Publication number: 20220190902
    Abstract: Disclosed herein are system, method, and computer program product embodiments for performing beam selection. An embodiment operates by receiving, from a base station, a request for a report for at least one uplink beam. In response, the embodiment generates the report for the at least one uplink beam. The report for the at least one uplink beam can include an indication that a resource corresponding to the at least one uplink beam is available for uplink beam indication. The resource can be a Synchronization Signal Block (SSB) resource or a Channel State Information Reference Signal (CSI-RS) resource. The embodiment transmits the report for the at least one uplink beam to the base station. The embodiment then receives, from the base station, an indication that the at least one uplink beam is selectable for uplink transmission based on the report for the uplink beam.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 16, 2022
    Applicant: Apple Inc.
    Inventors: Yushu ZHANG, Alexei DAVYDOV, Gang XIONG, Guotong WANG
  • Publication number: 20220191898
    Abstract: A method for slot offset determination for non-terrestrial networks includes receiving a physical downlink control channel (PDCCH) including downlink control information (DCI) scheduling transmission of a physical uplink shared channel (PUSCH) and receiving a slot offset for transmission of the PUSCH. An additional slot offset is determined based on a timing advance value. A total slot offset is determined based on the slot offset and the additional slot offset. The PUSCH is transmitted based on the total slot offset and the timing advance value.
    Type: Application
    Filed: May 8, 2020
    Publication date: June 16, 2022
    Inventors: Victor Sergeev, Alexei Davydov, Gregory Morozov
  • Publication number: 20220190939
    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for framework of layer 1 signal-to-interference plus noise ratio (L1-SINR) measurement and reporting based on channel measurement and interference measurement. The channel measurement is performed on a first set of reference signal (RS) resources, and the interference measurement is performed on a second set of RS resources. Each of the second set of RS resources is mapped to each of the first set of RS resources. The L1-SINR is determined from a first RS resource of the first set of RS resources and a second RS resource of the send set of RS resources, where the first RS resource is mapped to the second RS resource. A message including the L1-SINR is generated and transmitted to the access node.
    Type: Application
    Filed: January 2, 2020
    Publication date: June 16, 2022
    Inventors: Yushu Zhang, Yingzhu Zhao, Guotong Wang, Victor Sergeev, Alexei Davydov
  • Publication number: 20220191906
    Abstract: Systems, devices, and techniques for adjusting a user equipment (UE) processing time parameter in a wireless communication system that include transmission and reception points (TRPs) are described. A described technique performed by UE includes receiving a first physical downlink shared channel (PDSCH) from a first TRP corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH. The technique further includes transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively. The first processing time parameter can be based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.
    Type: Application
    Filed: May 1, 2020
    Publication date: June 16, 2022
    Inventors: Avik Sengupta, Bishwarup Mondal, Debdeep Chatterjee, Alexei Davydov
  • Publication number: 20220173950
    Abstract: Methods, systems, apparatus, and computer programs, for providing uplink control information to an access node. In one aspect, the method can include actions of determining, by a UE, a time-domain orthogonal cover code (OCC) for a PUCCH message of a UE to multiplex the PUCCH transmission with one or more PUCCH messages from one or more other UEs, and encoding, by the UE, the PUCCH message for transmission by the UE using the OCC.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 2, 2022
    Inventors: Avik Sengupta, Alexei DAVYDOV, Sameer Pawar, Guotong Wang, Gregory Morozov
  • Patent number: 11350437
    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: an interface configured to enable the UE to communicate with two or more TRPs; and a processor that is configured to generate uplink control information (UCI) for each of the TRPs, schedule single or multiple uplink channels to carry the UCI, so that the UCI is transmitted individually or in combination to the TRPs via the interface, wherein the uplink channels comprise NR physical uplink control channel (PUCCH) and/or NR physical uplink shared channel (PUSCH). Techniques discussed herein also can facilitate demodulation reference signal design for short physical uplink control channel carrying more than 2-bit UCI for new radio.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 31, 2022
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Joonyoung Cho, Alexei Davydov, Seunghee Han, Yushu Zhang
  • Publication number: 20220167321
    Abstract: Wireless communication systems can include multiple Transmission and Reception Points (TRPs). Systems, devices, and techniques for control signaling of Precoding Resource block Group (PRG) size configuration for multi-TRP operations are described. A described technique includes determining, by a User Equipment (UE), a PRG size based on a downlink control information (DCI) message that provides scheduling information for a physical ?downlink shared channel (PDSCH); receiving, by the UE, a group of PDSCH transmissions from multiple TRPs that are transmitted in accordance with the DCI message; and decoding, by the UE, one or more of the PDSCH transmissions based on the PRG size.
    Type: Application
    Filed: March 19, 2020
    Publication date: May 26, 2022
    Inventors: Yushu Zhang, Alexei Davydov, Bishwarup Mondal, Guotong Wang, Avik Sengupta
  • Patent number: 11343048
    Abstract: Briefly, in accordance with one or more embodiments, apparatus of an evolved NodeB (eNB) comprises circuitry to configure one or more parameters for a 5G master information block (xMIB). The xMIB contains at least one of the following parameters: downlink system bandwidth, system frame number (SFN), or configuration for other physical channels, or a combination thereof. The apparatus of the eNB comprises circuitry to transmit the xMIB via a 5G physical broadcast channel (xPBCH) on a predefined resource, the xPBCH comprising a xPBCH. The xPBCH may use a DM-RS based transmission mode, and a beamformed xPBCH may be used for mid band and high band.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 24, 2022
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Hyejung Jung, Ralf Bendlin, Jong-Kae Fwu, Alexei Davydov
  • Patent number: 11343876
    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: Grant
    Filed: September 10, 2018
    Date of Patent: May 24, 2022
    Assignee: Apple Inc.
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov
  • Publication number: 20220158766
    Abstract: Systems, devices, and techniques for beamforming in wireless communication systems are described. A described technique performed by a user equipment (UE) includes monitoring a downlink reference signal from a base station; transmitting, via a physical uplink shared channel (PUSCH) associated with a hybrid automatic repeat request (HARQ) process number, a beam failure recovery request (BFRQ) in response to a change in a quality of the downlink reference signal, wherein the BFRQ comprises new beam information; receiving, by the UE, a downlink control information (DCI) message to trigger a PUSCH transmission corresponding to the HARQ process number; and transmitting, by the UE after at least a predetermined number of symbols from a last symbol of a physical downlink control channel (PDCCH) reception containing the DCI message, information via a PUCCH in accordance with the new beam information. The UE can apply the new beam information to uplink and downlink channels.
    Type: Application
    Filed: May 1, 2020
    Publication date: May 19, 2022
    Inventors: Yushu Zhang, Guotong Wang, Gang Xiong, Yingyang Li, Alexei Davydov
  • Publication number: 20220158715
    Abstract: Embodiments are directed to beam switching. An embodiment of a user equipment (UE) comprises a processor to configure the UE to receive, one or more repetitions of a transport block (TB) using a first physical downlink shared channel (PDSCH) beam, obtain a downlink control information (DCI) comprising one or more transmission configuration indicator (TCI) states, and configure the UE to switch from the first PDSCH beam to a second PDSCH beam, different from the first PDSCH beam, based at least in part on the one or more TCI states.
    Type: Application
    Filed: May 1, 2020
    Publication date: May 19, 2022
    Applicant: Apple Inc.
    Inventors: Mondal Bishwarup, Avik Sengupta, Yushu Zhang, Alexei Davydov
  • Publication number: 20220158695
    Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may map data symbols to resource elements (REs) of virtual resource blocks (VRBs). The gNB may interleave the data symbols, on a per-VRB basis, to spatial layers of a multi-layer multiple-input multiple-output (MIMO) transmission. The data symbols may be interleaved based on different interleave patterns of VRB indexes for the spatial layers. The gNB may map the interleaved data symbols of the spatial layers to REs of physical resource blocks (PRBs) for orthogonal frequency division multiplexing (OFDM) transmission.
    Type: Application
    Filed: November 19, 2021
    Publication date: May 19, 2022
    Inventors: Dae Won Lee, Seunghee Han, Ajit Nimbalker, Alexei Davydov, Paul C. Wei, Dmitry Dikarev
  • Publication number: 20220158794
    Abstract: Apparatuses, systems, and methods for multiplexing of PUCCH for beam failure recovery and other signals. A UE may determine a transmission dropping rule and a transmission power scaling rule for a PUCCH which is dedicatedly configured for secondary BFR transmission, such as a PUCCH-BFR, when it is multiplexed with BFR multiplexed with at least one other signal at least one other signal. The PUCCH-BFR and the at least one other signal may be multiplexed in a CC or in multiple CCs. The UE may determine a transmission dropping rule, e.g., so that UE can transmit an uplink signals with higher priority and drop the other uplink signal with lower priority to avoid beam collisions. The UE may determine a transmission power scaling rule, e.g., so the UE may scale transmission power within a CC and/or across CCs. The UE may multiplex the PUCCH-BFR with the at least one other signal according to the rules.
    Type: Application
    Filed: May 29, 2020
    Publication date: May 19, 2022
    Inventors: Yushu Zhang, Gang Xiong, Alexei Davydov, Yingyang Li, Guotong Wang
  • Patent number: 11336423
    Abstract: Technology for a user equipment (UE) operable to adjust a receiver timing is disclosed. The UE can decode a plurality of channel-state information reference signals (CSI-RSs) received from a plurality of cooperating nodes, wherein the plurality of cooperating nodes are included in a coordination set of a Coordinated MultiPoint (CoMP) system. The UE can generate a plurality of received RS timings from the plurality of CSI-RSs, wherein the received RS timings represent timings from the plurality of cooperating nodes. The UE can determine a composite received RS timing from the plurality of received RS timings. The UE can adjust the receiver timing based on the composite received RS timing.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: May 17, 2022
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Gregory Morozov, Alexander Maltsev, Vadim Sergeyev, Ilya Bolotin
  • Publication number: 20220149922
    Abstract: Apparatuses, systems, and methods for providing beam information for secondary cell beam failure recovery in a wireless communication system. A wireless device and a cellular base station may establish a wireless link, according to which the wireless device may be configured to communicate using a primary cell and a secondary cell. The wireless device may detect beam failure on the secondary cell. The wireless device may send an indication of the beam failure recovery to the cellular base station. The wireless device may receive information configuring candidate transmit beam reference signals for performing beam recovery on the secondary cell. The wireless device may perform beam identification and report on any new transmit beam(s) identified by the wireless device.
    Type: Application
    Filed: May 8, 2020
    Publication date: May 12, 2022
    Inventors: Guotong Wang, Yushu Zhang, Alexei Davydov, Gang Xiong