公开(公告)号：US20220085939A1

公开(公告)日：2022-03-17

申请号：US17420634

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Bishwarup MONDAL ,  Avik SENGUPTA ,  Debdeep CHATTERJEE ,  Alexei Armando DAVYDOV

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/04

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) in a wireless communication system using an unlicensed spectrum. The UE includes a processor circuitry and radio front end circuitry coupled with the processor circuitry. The processor circuitry is configured to determine UE processing time for a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission, and an additional processing time corresponding to the first and the second PDSCH transmissions. The processor circuitry is configured to process a hybrid automatic repeat and request acknowledgement (HARQ-ACK) assessment information for inclusion in a subframe on a physical uplink control channel (PUCCH) following the UE processing time and the additional processing time. The radio front end circuitry is configured to receive the first and the second PDSCH transmissions from a base station, and transmit the HARQ-ACK assessment information on the PUCCH to the base station.

公开(公告)号：US20220216964A1

公开(公告)日：2022-07-07

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

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：US20220116247A1

公开(公告)日：2022-04-14

申请号：US17280461

申请日：2019-09-26

Applicant: Apple Inc.

Inventor： Avik SENGUPTA ,  Bishwarup MONDAL ,  Alexei DAVYDOV ,  Sameer PAWAR

IPC: H04L25/02 ,  H04B7/08 ,  H04L5/00

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for user equipment (UE) idle mode operations. In embodiments, a UE wakes up more than once during a Discontinuous Reception (DRX) cycle. Inter-frequency measurement requirements may be relaxed based on DRX cycle length. Some embodiments include radiofrequency (RF) circuitry warm-up overhead reduction by on-duration separation with RF circuitry switching pattern adaption. Some embodiments include and RF circuitry warm-up overhead reduction by adaptive synchronization signal block (SSB) reference symbol down-selection. Other embodiments may be described and/or claimed.

公开(公告)号：US20210410086A1

公开(公告)日：2021-12-30

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

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.