公开(公告)号：US20230217267A1

公开(公告)日：2023-07-06

申请号：US18116496

申请日：2023-03-02

Applicant: Apple Inc.

Inventor： Fatemeh HAMIDI-SEPEHR ,  Debdeep CHATTERJEE ,  Bishwarup MONDAL ,  Sergey PANTELEEV ,  Toufiqul ISLAM ,  Yushu ZHANG ,  Alexei Vladimirovich DAVYDOV

IPC: H04W16/28 ,  H04W76/20 ,  H04W72/23

CPC classification number: H04W16/28 ,  H04W72/23 ,  H04W76/20

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for multi-transmission reception point (TRP) reception, the processing circuitry is to decode radio resource control (RRC) signaling. The RRC signaling includes configuration information configuring a plurality of transmission configuration indication (TCI) states. A media access control (MAC) control element (CE) is decoded, where the MAC CE indicates multiple active TCI states of the configured plurality of TCI states. Multiple received beams are determined using the multiple active TCI states. Downlink information is decoded, where the downlink information originates from multiple TRPs and is received via the determined multiple receive beams associated with the multiple active TCI states.

公开(公告)号：US20210306867A1

公开(公告)日：2021-09-30

申请号：US17259057

申请日：2019-08-07

Applicant: Apple Inc.

Inventor： Fatemeh HAMIDI-SEPEHR ,  Debdeep CHATTERJEE ,  Bishwarup MONDAL ,  Sergey PANTELEEV ,  Toufiqul ISLAM ,  Yushu ZHANG ,  Alexei Vladimirovich DAVYDOV

IPC: H04W16/28 ,  H04W72/04

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for multi-transmission reception point (TRP) reception, the processing circuitry is to decode radio resource control (RRC) signaling. The RRC signaling includes configuration information configuring a plurality of transmission configuration indication (TCI) states. A media access control (MAC) control element (CE) is decoded, where the MAC CE indicates multiple active TCI states of the configured plurality of TCI states. Multiple received beams are determined using the multiple active TCI states. Downlink information is decoded, where the downlink information originates from multiple TRPs and is received via the determined multiple receive beams associated with the multiple active TCI states.

公开(公告)号：US20210175950A1

公开(公告)日：2021-06-10

申请号：US17259117

申请日：2019-08-07

Applicant: Apple Inc.

Inventor： Victor SERGEEV ,  Alexei Vladimirovich DAVYDOV ,  Gregory ERMOLAEV ,  Dmitry DIKAREV

IPC: H04B7/06 ,  H04B7/0456

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for channel state information (CSI) reporting in a 5G network, the processing circuitry is to decode a radio resource control (RRC) configuration message, the RRC configuration message including first configuration information to configure determination of channel quality information (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI) for the CSI reporting. Second configuration information is decoded to configure codebook parameters for a high spatial resolution codebook associated with the PMI. A precoding matrix is determined based on the first configuration information, where a number of coefficients in at least one coefficient vector of the precoding matrix is configured using the second configuration information. CSI is encoded for transmission to a base station, the CSI including the RI and the PMI associated with the determined precoding matrix.

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.