公开(公告)号：US20220330208A1

公开(公告)日：2022-10-13

申请号：US17825035

申请日：2022-05-26

Applicant: Apple Inc.

Inventor： Dae Won LEE ,  Seunghee HAN ,  Gregory Vladimirovich MOROZOV ,  Alexei DAVYDOV ,  Yongjun KWAK

IPC: H04W72/00 ,  H04J11/00 ,  H04L1/00 ,  H04L1/16 ,  H04W56/00 ,  H04W72/04

Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).

公开(公告)号：US20220190902A1

公开(公告)日：2022-06-16

申请号：US17428491

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Alexei DAVYDOV ,  Gang XIONG ,  Guotong WANG

IPC: H04B7/06 ,  H04W76/19 ,  H04W56/00 ,  H04W52/36 ,  H04L5/00

Abstract: Disclosed herein are system, method, and computer program product embodiments for performing beam selection. An embodiment operates by receiving, from a base station, a request for a report for at least one uplink beam. In response, the embodiment generates the report for the at least one uplink beam. The report for the at least one uplink beam can include an indication that a resource corresponding to the at least one uplink beam is available for uplink beam indication. The resource can be a Synchronization Signal Block (SSB) resource or a Channel State Information Reference Signal (CSI-RS) resource. The embodiment transmits the report for the at least one uplink beam to the base station. The embodiment then receives, from the base station, an indication that the at least one uplink beam is selectable for uplink transmission based on the report for the uplink beam.

公开(公告)号：US20220078085A1

公开(公告)日：2022-03-10

申请号：US17527010

申请日：2021-11-15

Applicant: Apple Inc.

Inventor： Honglei MIAO ,  Jeongho JEON ,  Alexei DAVYDOV ,  Hong HE ,  Debdeep CHATTERJEE ,  Joonyoung CHO ,  Daewon LEE ,  Gang XIONG

IPC: H04L12/24 ,  H04W16/32 ,  H04W76/28 ,  H04L5/00 ,  H04W72/04

Abstract: The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed, The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.

公开(公告)号：US20220077942A1

公开(公告)日：2022-03-10

申请号：US17419591

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Andrey CHERVYAKOV ,  Dmitry BELOV ,  Aida VERA LOPEZ ,  Alexei DAVYDOV ,  Jie CUI

IPC: H04B17/29 ,  H04B17/12 ,  H04W24/06 ,  H04L5/00

Abstract: An approach is described to for new radio (NR) antenna test function (ATF) measurements by a user equipment (UE). The approach includes measuring a first average phase of receive signals on resource elements that carry secondary synchronization signals (SS) received by a reference individual receiver branch. The approach also includes measuring a second average phase of the receive signals on the resource elements that carry secondary synchronization signals received by one other individual receiver branch different from the reference individual receiver branch. The approach further includes determining a difference between the first average phase and the second average phase. An indication of the difference is reported to test equipment.

公开(公告)号：US20220077911A1

公开(公告)日：2022-03-10

申请号：US17417302

申请日：2020-01-18

Applicant: Apple Inc.

Inventor： Victor SERGEEV ,  Alexei DAVYDOV ,  Bishwarup MONDAL ,  Gregory MOROZOV ,  Dmitry DIKAREV

IPC: H04B7/06 ,  H04B7/0456

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.

公开(公告)号：US20210288708A1

公开(公告)日：2021-09-16

申请号：US17334207

申请日：2021-05-28

Applicant: Apple Inc.

Inventor： Alexei DAVYDOV ,  Sameer PAWAR ,  Wook Bong LEE ,  Yushu ZHANG ,  Victor SERGEEV ,  Joonyoung CHO ,  Dmitry DIKAREV

IPC: H04B7/06

Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.

公开(公告)号：US20200252113A1

公开(公告)日：2020-08-06

申请号：US16733614

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Alexei DAVYDOV

IPC: H04B7/0456 ,  H04L1/00 ,  H04L27/34

Abstract: Various embodiments provide techniques to determine a TBS for use with 1024 QAM communications that use more than one multiple input, multiple output (MIMO) layer based on a reference TBS for use with 1024 QAM communications that use a single MIMO layer. The reference TBS may be determined based on a TBS index and a resource allocation for the communication. The TBS index may be determined based on a modulation and coding scheme (MCS) index. Other embodiments may be described and claimed.