公开(公告)号：US20220131676A1

公开(公告)日：2022-04-28

申请号：US17429973

申请日：2020-02-14

Applicant: Apple Inc.

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

IPC: H04L5/00

Abstract: Disclosed are systems, methods, and one or more computer-readable media (CRM) storing instructions for the triggering of a channel state information reference signal (CSI-RS) by user equipment (UE) in a wireless cellular network. The UE measures a downlink reference signal. The UE also determines a condition for triggering a channel state information reference signal (CSI-RS) is satisfied based on the downlink reference signal. Then, the UE transmits a request for a base station of the wireless cellular network to provide the CSI-RS to the UE based on the condition being satisfied.

公开(公告)号：US20210289446A1

公开(公告)日：2021-09-16

申请号：US17248900

申请日：2021-02-12

Applicant: Apple Inc.

Inventor： Alexei DAVYDOV ,  Hyejung JUNG ,  Gregory MOROZOV ,  Victor SERGEEV

IPC: H04W52/14 ,  H04W52/42 ,  H04W52/58

Abstract: This disclosure proposes to use multiple power control loops in the uplink. Each power control loop may be associated with a respective antenna beam transmitted from an antenna array of the electronic device (e.g. UE) in the uplink. For example, a beam (or uplink signal) may be associated with 1, 2 or even more MIMO layer. Hence, in this latter case, each power control loop may be associated with a respective set of one or more MIMO layers. This concept is application to open-loop, closed-loop power control or both.

公开(公告)号：US20210203394A1

公开(公告)日：2021-07-01

申请号：US17199901

申请日：2021-03-12

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0408 ,  H04L1/18 ,  H04W72/04 ,  H04W76/27 ,  H04L1/00

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.

公开(公告)号：US20200213973A1

公开(公告)日：2020-07-02

申请号：US16632416

申请日：2018-07-26

Applicant: Apple Inc.

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

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

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：US20240097767A1

公开(公告)日：2024-03-21

申请号：US18520202

申请日：2023-11-27

Applicant: Apple Inc.

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

IPC: H04B7/06

CPC classification number: H04B7/0658 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634

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：US20230089326A1

公开(公告)日：2023-03-23

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

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：US20220173950A1

公开(公告)日：2022-06-02

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: H04L27/26 ,  H04L5/00

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：US20220132326A1

公开(公告)日：2022-04-28

申请号：US17439777

申请日：2020-05-13

Applicant: Apple Inc.

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

IPC: H04W16/28 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: Techniques are provided for selecting a spatial relation for a physical uplink shared channel (PUSCH) transmission by a user equipment (UE) operating in a multi-transmission reception point (TRP) multi-antenna panel environment. For example, the UE prepares a PUSCH transmission intended for a first TRP of a plurality of TRPs available to the UE in the wireless network, and determines a first antenna port group of a plurality of antenna port groups of the UE that is more directionally aligned with the first TRP than other antenna port groups of the plurality of antenna port groups. The UE further transmits the PUSCH transmission to the first TRP via the first antenna port group using a default spatial relation used for a physical uplink control channel (PUCCH) communication with the first TRP via the first antenna port group.

公开(公告)号：US20220095235A1

公开(公告)日：2022-03-24

申请号：US17419597

申请日：2020-02-18

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W72/04

Abstract: Some embodiments of this disclosure include apparatuses and methods for uplink panel selection with power saving. In some embodiments, user equipment (UE) may experience a positional change. In response, the UE may deactivate a first communication panel to save power and activate a second communication panel. The UE may then transmit a status message to a communication node indicating the activation and/or deactivation. The node may then register this activation and/or deactivation. In some embodiments, the node may monitor uplink slots from the first and second communication panel to identify the activation and deactivation. For example, if the node detects an absence of an uplink signal within a slot threshold, the node may identify the panel as being deactivated. The node may establishing communications with another panel based on a detected signal and/or the status message.

公开(公告)号：US20220085931A1

公开(公告)日：2022-03-17

申请号：US17421584

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Bishwarup MONDAL ,  Debdeep CHATTERJEE ,  Fatemeh HAMIDI-SEPEHR ,  Alexei DAVYDOV

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/04 ,  H04W76/15

Abstract: Disclosed are systems and methods of selecting physical downlink control channel (PDCCH) candidates for non-coherent joint transmission (NC-JT) in a wireless network. For instance, first and second sets of ControlResourceSet and SearchSpace parameters can be configured for a UE. The first and second sets of ControlResourceSet and SearchSpace parameters are configured on a first downlink (DL) component carrier to enable NC-JT. A control channel element (CCE) limit can be determined for the first and second sets of ControlResourceSet and SearchSpace parameters. One or more PDCCH candidates can then be selected for the first and second sets of ControlResourceSet and SearchSpace parameters based at least in part on the determined CCE limits. NC-JT communication including at least a first communication from a first transmission and reception point (TRP), and a second communication from a second TRP can then be received.