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公开(公告)号：US12075433B2
公开(公告)日：2024-08-27
申请号：US17440932
申请日：2020-03-19
Applicant: Apple Inc.
Inventor： Yushu Zhang , Alexei Davydov , Bishwarup Mondal , Guotong Wang , Avik Sengupta
CPC classification number: H04W72/23 , H04L5/0035
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.
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公开(公告)号：US20240172147A1
公开(公告)日：2024-05-23
申请号：US18534181
申请日：2023-12-08
Applicant: APPLE INC.
Inventor： Yang Tang , Dae Won Lee , Prerana Rane , Bishwarup Mondal , Jiwoo Kim , Yongjun Kwak , Seunghee Han
CPC classification number: H04W56/001 , H04L27/26025 , H04L27/2607
Abstract: Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel, Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS), NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and/or entries of a second plurality of data objects calculated for NR channels that use a second SCS.
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公开(公告)号：US20240080732A1
公开(公告)日：2024-03-07
申请号：US18508419
申请日：2023-11-14
Applicant: Apple Inc.
Inventor： Wenting Chang , Shirish Nagaraj , Bishwarup Mondal , Yuan Zhu , Yushu Zhang
CPC classification number: H04W36/085 , H04W36/0064 , H04W72/23
Abstract: The first circuitry may be operable to establish a first UE Receive (Rx) beam as being for reception of data from a first eNB. The second circuitry may be operable to process a transmission including Downlink Control Information (DCI), wherein the DCI carries an eNB cell-switching indicator. The first circuitry may also be operable to establish a second UE Rx beam as being for reception of data from a second eNB based on the eNB cell-switching indicator.
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公开(公告)号：US11838082B2
公开(公告)日：2023-12-05
申请号：US17993511
申请日：2022-11-23
Applicant: Apple Inc.
Inventor： Victor Sergeev , Alexei Davydov , Bishwarup Mondal , Gregory Morozov , Dmitry Dikarev
IPC: H04B7/06 , H04B7/0456
CPC classification number: H04B7/0626 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04B7/0663
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.
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公开(公告)号：US11811694B2
公开(公告)日：2023-11-07
申请号：US17430857
申请日：2020-02-16
Applicant: Apple Inc.
Inventor： Bishwarup Mondal , Avik Sengupta , Alexei Davydov , Yushu Zhang
IPC: H04L5/00
CPC classification number: H04L5/0051
Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for a single downlink control information (DCI) signal that supports multi-transmission reception point (TRP) transmissions from different TRPs (e.g., different 5G Node Bs or different antenna panels.) A user equipment (UE) receives a single DCI signal that includes a first transmission configuration indicator (TCI) state of a first TRP, a second TCI state of a second TRP, and a demodulation reference signal (DMRS) port indication value. The UE uses the DMRS port indication value to determine a first DMRS port and a first code division multiplexing (CDM) group of the first TCI state and a second DMRS port and a second CDM group of the second TCI state. The UE receives a multi-Physical Downlink Shared Channel (PDSCH) signal that includes multi-TRP transmissions, and uses the above determinations to decode data from the first and/or the second TCI states.
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Patent Agency Ranking
公开(公告)号：US11647506B2
公开(公告)日：2023-05-09
申请号：US17843146
申请日：2022-06-17
Applicant: Apple Inc.
Inventor： Yushu Zhang , Yuan Zhu , Wenting Chang , Sungho Moon , Bishwarup Mondal
IPC: H04W72/04 , H04B17/318 , H04B7/06 , H04W36/00 , H04B7/0417 , H04L5/00 , H04W72/12 , H04B17/24 , H04B7/0456
CPC classification number: H04W72/0413 , H04B7/0417 , H04B7/0695 , H04B17/318 , H04L5/0051 , H04W36/0058 , H04W72/1231 , H04B7/0456 , H04B7/063 , H04B7/0626 , H04B17/24
Abstract: An apparatus of a user equipment (UE) may include a memory and one or more processors operatively coupled to the memory. The processors may process a scheduling trigger to provide channel state information (CSI) and beam information using extra-large physical uplink shared channel (xPUSCH). The processing device may also generate a reporting message comprising CSI and beam information. The processing device may then encode xPUSCH data to include the reporting message.
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公开(公告)号：US20220201746A1
公开(公告)日：2022-06-23
申请号：US17439244
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Yongjun Kwak , Bishwarup Mondal , Lopamudra Kundu , Jiwoo Kim
Abstract: Systems, devices, and techniques for wideband operations in unlicensed spectrum are described. A described technique receiving, by a user equipment (UE), a schedule for transmitting on a Physical uplink shared channel (PUSCH) over at least a portion of a plurality of listen-before-talk (LBT) subbands of a bandwidth part (BWP) in an unlicensed spectrum. The scheduled PUSCH bandwidth indicated by the schedule can be greater than a unit bandwidth of a LBT subband. The technique includes performing, by the UE, a LBT procedure on each scheduled LBT subband of the plurality of LBT subbands, each of the scheduled LBT subbands being associated with the scheduled PUSCH bandwidth. The technique includes performing, by the UE, a PUSCH transmission in accordance with the schedule that uses one or more of the scheduled LBT subbands that have passed the LBT procedure.
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公开(公告)号：US20220191810A1
公开(公告)日：2022-06-16
申请号：US17593080
申请日：2020-05-13
Applicant: APPLE INC.
Inventor： Yang Tang , Dae Won Lee , Prerana Rane , Bishwarup Mondal , Jiwoo Kim , Yongjun Kwak , Suenghee Han
Abstract: Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel, Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS), NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and/or entries of a second plurality of data objects calculated for NR channels that use a second SCS.
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公开(公告)号：US20220159629A1
公开(公告)日：2022-05-19
申请号：US17439143
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Avik Sengupta , Bishwarup Mondal , Toufiqul Islam , Hong He
Abstract: Systems, devices, and techniques for preemption indication in wireless communication systems are described. A described technique includes receiving, by a User Equipment (UE) via a physical downlink control channel (PDCCH), a downlink control information (DCI) message in a Control Resource Set (CORESET) configured with a transmission configuration indicator (TCI) state, the TCI state being associated with a transmission reception point (TRP), the DCI message comprising a downlink preemption indication for the TCI state; and applying preemption to a reference signal or a channel associated with the TCI state responsive to the downlink preemption indication.
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公开(公告)号：US20220150802A1
公开(公告)日：2022-05-12
申请号：US17583929
申请日：2022-01-25
Applicant: Apple Inc.
Inventor： Salvatore Talarico , Carlos Aldana , Bishwarup Mondal , Jeongho Jeon , Dae Won Lee
Abstract: Systems and methods of providing timing information for initial access in an unlicensed band are described. A UE monitors a new radio discovery signal (NRDS-U) window in an unlicensed band for a DRS transmission that is constrained to be transmitted within the NRDS-U window. The UE determines initial access information, including an offset that indicates when the DRS transmission occurs within the NRDS-U window, and engages in initial access dependent on the offset. The offset is from a radio frame or half radio frame boundary or the start of the NRDS-U window. The offset is indicated in three least/most significant bits an SSB index or from an sl-offset field in a MIB of the SSB. When the base station uses a DFS channel, the base station transmits a periodic signal to emulate a radar signal.
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