公开(公告)号：US11432278B2

公开(公告)日：2022-08-30

申请号：US16953769

申请日：2020-11-20

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Debdeep Chatterjee ,  Hong He ,  Gang Xiong ,  Hwan-Joon Kwon

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W28/22 ,  H04L1/00

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. The apparatus further comprises a radio frequency (RF) interface, configured to provide the generated PDSCH dynamic rate matching resource set configuration signal, to an RF circuitry, in order to subsequently provide the PDSCH dynamic rate matching resource set configuration signal to a user equipment (UE), in order to enable the UE to identify the one or more overlap resource sets.

公开(公告)号：US20220263556A1

公开(公告)日：2022-08-18

申请号：US17440942

申请日：2020-03-19

Applicant: Apple Inc.

Inventor： Victor Sergeev ,  Alexei Davydov ,  Dmitry Dikarev

IPC: H04B7/06 ,  H04L1/00 ,  H04B7/0456

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.

公开(公告)号：US11419110B2

公开(公告)日：2022-08-16

申请号：US15767993

申请日：2016-04-01

Applicant: Apple Inc.

Inventor： Christian Ibars Casas ,  Seunghee Han ,  Hong He ,  Alexei Davydov

IPC: H04W72/04 ,  H04L5/00

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.

公开(公告)号：US20220201733A1

公开(公告)日：2022-06-23

申请号：US17587394

申请日：2022-01-28

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：US11368265B2

公开(公告)日：2022-06-21

申请号：US16407743

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Sameer Pawar ,  Avik Sengupta ,  Alexei Davydov

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/12 ,  H04L27/20 ,  H04B7/02 ,  H04L25/02 ,  H04L27/26 ,  H04W88/02

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.

公开(公告)号：US20220141065A1

公开(公告)日：2022-05-05

申请号：US17434443

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Yongjun Kwak ,  Alexei Davydov ,  Daewon Lee

IPC: H04L27/26 ,  H04L5/00

Abstract: Systems, methods, and circuitries are provided for configuring and indicating channel state information resource signals (CSI-RS) using discovery reference signal (DRS) resources. An example method includes determining discovery reference signal (DRS) resources for use in carrying channel state information reference signals (CSI-RS); generating CSI-RS configuration information that defines at least one CSI-RS using the DRS resources; and signaling the CSI-RS configuration information to a user equipment (UE) device.

公开(公告)号：US20220103409A1

公开(公告)日：2022-03-31

申请号：US17531879

申请日：2021-11-22

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Debdeep Chatterjee ,  Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Dae Won Lee ,  Sameer Pawar ,  Jeongho Jeon ,  Hong He

IPC: H04L27/26 ,  H04L5/00

Abstract: Systems, methods, and circuitries are disclosed for determining Precoding Resource Block Groups (PRGs). In one example, a processor of a base station (BS) is configured to determine a plurality of PRGs that includes a number N consecutive Physical Resource Blocks (PRBs) over which a same precoder assignment is used, starting from a reference PRB. The plurality PRGs include a first boundary PRG, a second boundary PRG, and one or more other PRGs. The first boundary PRG is located at an upper boundary of a bandwidth part. The first boundary PRG comprises fewer than N PRBs when the upper boundary of the bandwidth part is not aligned with a PRG boundary. The second boundary PRG comprises fewer than N PRBs when a lower boundary of the bandwidth part is not aligned with a PRG boundary. A downlink data channel is transmitted to a UE in accordance with the precoder assignments.

公开(公告)号：US20220070855A1

公开(公告)日：2022-03-03

申请号：US17419438

申请日：2020-01-06

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Guotong Wang ,  Bishwarup Mondal ,  Alexei Davydov

IPC: H04W72/04 ,  H04W8/24

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.

公开(公告)号：US20220060361A1

公开(公告)日：2022-02-24

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gregory Morozov ,  Guotong Wang ,  Dae Won Lee ,  Gang Xiong ,  Sameer Pawar ,  Jie Zhu

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

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.

公开(公告)号：US20210400700A1

公开(公告)日：2021-12-23

申请号：US17287794

申请日：2019-10-31

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov ,  Gang Xiong

IPC: H04W72/12 ,  H04W72/04

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 physical downlink shared channel (PDSCH) scheduling signal, received from a gNodeB associated therewith, wherein the PDSCH scheduling signal is configured to schedule a transmission of PDSCH. In some embodiments, the PDSCH scheduling signal comprises a transmission configuration indicator (TCI) state indicative of a channel state information reference signal (CSI-RS) resource that is triggered aperiodically. In some embodiments, the apparatus is further configured to determine a receive (Rx) beam to be utilized for the reception of the scheduled PDSCH transmission, that forms a PDSCH Rx beam, based on the indicated CSI-RS resource.