公开(公告)号：US10736132B2

公开(公告)日：2020-08-04

申请号：US16371970

申请日：2019-04-01

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Sameer Pawar

IPC: H04W72/12 ,  H04B7/0413 ,  H04L1/00 ,  H04L5/00

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.

公开(公告)号：US12301337B2

公开(公告)日：2025-05-13

申请号：US17287081

申请日：2019-10-31

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Alexei Davydov ,  Avik Sengupta ,  Sameer Pawar ,  Gregory V. Morozov ,  Yushu Zhang

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/23

Abstract: A service device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component or network management component) can process or generate a Downlink Control Information (DCI) that schedules a Physical Uplink Shared Channel (PUSCH) transmission in a PUSCH. The PUSCH transmission can be generated based on a Demodulation Reference Signal (DMRS) according to a Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in uplink. A sequence of the DMRS can be generated based on a Gold sequence and a Pi/2 Binary Phase-Shift Keying (BPSK) modulation.

公开(公告)号：US12206620B2

公开(公告)日：2025-01-21

申请号：US18473825

申请日：2023-09-25

Applicant: Apple Inc.

Inventor： Sameer Pawar ,  Alexei Davydov

IPC: H04L5/00 ,  H04W72/21 ,  H04W72/23

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies.

公开(公告)号：US20240121041A1

公开(公告)日：2024-04-11

申请号：US18212635

申请日：2023-06-21

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Alexei Vladimirovich Davydov ,  Seung Hee Han ,  Jeongho Jeon ,  Sameer Pawar ,  Avik Sengupta ,  Guotong Wang ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/1812

CPC classification number: H04L5/0048 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094

Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCII. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.

公开(公告)号：US11736253B2

公开(公告)日：2023-08-22

申请号：US17689229

申请日：2022-03-08

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Alexei Vladimirovich Davydov ,  Seung Hee Han ,  Jeongho Jeon ,  Sameer Pawar ,  Avik Sengupta ,  Guotong Wang ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/1812

CPC classification number: H04L5/0048 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094

Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.

公开(公告)号：US11575554B2

公开(公告)日：2023-02-07

申请号：US16055964

申请日：2018-08-06

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gang Xiong ,  Debdeep Chatterjee ,  Hong He ,  Gregory Morozov ,  Sameer Pawar ,  Yushu Zhang ,  Victor Sergeev ,  Dmitry Dikarev ,  Daewon Lee

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04B7/06 ,  H04W76/11 ,  H04W76/27 ,  H04L1/00 ,  H04W88/06

Abstract: A scrambling sequence generation method is disclosed for reference signals, data, and downlink and uplink control channels. The scrambling sequence generation method determines an initial seed value used to calculate the scrambling sequence. The initial seed value is based on different parameters relating to the to be transmitted signals, and some of these parameters are explicitly defined for New Radio.

公开(公告)号：US20220295496A1

公开(公告)日：2022-09-15

申请号：US17745112

申请日：2022-05-16

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Sameer Pawar

IPC: H04W72/08 ,  H04B17/336 ,  H04J13/16 ,  H04L5/00 ,  H04W72/04

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.

公开(公告)号：US20220173950A1

公开(公告)日：2022-06-02

申请号：US17442502

申请日：2020-04-17

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Alexei DAVYDOV ,  Sameer Pawar ,  Guotong Wang ,  Gregory Morozov

IPC: H04L27/26 ,  H04L5/00

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.

公开(公告)号：US11310016B2

公开(公告)日：2022-04-19

申请号：US16612333

申请日：2018-06-12

Applicant: Apple Inc.

Inventor： Sameer Pawar ,  Alexei Davydov

IPC: H04L5/00 ,  H04W72/04

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies.

公开(公告)号：US20200382190A1

公开(公告)日：2020-12-03

申请号：US16463953

申请日：2018-05-07

Applicant: APPLE INC.

Inventor： Sameer Pawar ,  Alexei Davydov

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04L1/16 ,  H04W80/08

Abstract: Technology for a Next Generation NodeB (gNB) operable to communicate a channel state information reference signal (CSI-RS) resource element (RE) mapping configuration to a user equipment (UE) is disclosed. The gNB can determine a CSI-RS RE mapping configuration that 5 identifies resource elements for a CSI-RS resource at a frequency domain location (k) and at a time domain location (l). The gNB can encode the CSI-RS RE mapping configuration for transmission to the UE via higher layer signaling.