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

IPC: H04W72/23 ,  H04L5/00

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.

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.

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：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

IPC: H04W72/04 ,  H04L5/00

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.

公开(公告)号：US20210377997A1

公开(公告)日：2021-12-02

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: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00

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：US12114321B2

公开(公告)日：2024-10-08

申请号：US17439143

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Bishwarup Mondal ,  Toufiqul Islam ,  Hong He

IPC: H04L5/00 ,  H04W72/23

CPC classification number: H04W72/23 ,  H04L5/0048

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.

公开(公告)号：US12068996B2

公开(公告)日：2024-08-20

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: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04L27/2602 ,  H04L27/26035 ,  H04L27/261 ,  H04L27/2615

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：US12040999B2

公开(公告)日：2024-07-16

申请号：US17265168

申请日：2019-08-09

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Sameer Pawar ,  Avik Sengupta

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/542

CPC classification number: H04L5/0048 ,  H04W72/0446 ,  H04W72/542

Abstract: Technology for an eNodeB operable to decode a sounding reference signal (SRS) received from a user equipment (UE) is disclosed. The eNodeB can decode the SRS received from the UE, wherein 5 the SRS is received using one or more SRS resources in a subframe where each SRS resource includes one or more symbols. The subframe can be an uplink subframe dedicated for SRS transmission or a short transmission time interval (sTTI) subframe used for SRS transmission. The eNodeB can determine uplink channel quality information for a channel between the eNodeB and the UE based in part on the 10 SRS.

公开(公告)号：US20220141075A1

公开(公告)日：2022-05-05

申请号：US17435730

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Yongjun Kwak ,  Daewon Lee ,  Avik Sengupta

IPC: H04L27/26 ,  H04W56/00 ,  H04L1/00

Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).

公开(公告)号：US11304157B2

公开(公告)日：2022-04-12

申请号：US16625131

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Alexei Vladimirovich Davydov ,  Avik Sengupta ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Debdeep Chatterjee ,  Dae Won Lee

IPC: H04J11/00 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: A user equipment (UE) can include processing circuitry configured to decode synchronization information within a synchronization signal (SS) block, the SS block received within a SS burst set and occupying a subset of a plurality of Orthogonal Frequency Division Multiplexing (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 physical downlink shared channel (PDSCH). A synchronization procedure can be performed with a next generation Node-B (gNB) based on the synchronization information within the SS block. The DM-RS can be detected within the slot, where the DM-RS starts at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data received via the PDSCH is decoded based on the detected DM-RS.