公开(公告)号：US10925005B2

公开(公告)日：2021-02-16

申请号：US16079494

申请日：2017-03-23

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：US11848888B2

公开(公告)日：2023-12-19

申请号：US18060416

申请日：2022-11-30

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hyejung Jung ,  Ralf Bendlin ,  Jong-Kae Fwu ,  Alexei Davydov

IPC: H04J3/02 ,  H04L5/00 ,  H04L1/00 ,  H04W72/044 ,  H04L1/06 ,  H04W84/04

CPC classification number: H04L5/0053 ,  H04L1/0061 ,  H04L1/0067 ,  H04W72/044 ,  H04L1/0606 ,  H04L5/0051 ,  H04L2001/0093 ,  H04W84/045

Abstract: Briefly, in accordance with one or more embodiments, apparatus of an evolved NodeB (eNB) comprises circuitry to configure one or more parameters for a 5G master information block (xMIB). The xMIB contains at least one of the following parameters: downlink system bandwidth, system frame number (SFN), or configuration for other physical channels, or a combination thereof. The apparatus of the eNB comprises circuitry to transmit the xMIB via a 5G physical broadcast channel (xPBCH) on a predefined resource, the xPBCH comprising a xPBCH. The xPBCH may use a DM-RS based transmission mode, and a beamformed xPBCH may be used for mid band and high band.

公开(公告)号：US11812390B2

公开(公告)日：2023-11-07

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

CPC classification number: H04W52/146 ,  H04W52/42 ,  H04W52/58

Abstract: This disclosure proposes a mobile communication system 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 of the communication system. Each power control loop may also be associated with a respective set of one or more MIMO layers. This concept is applicable to open-loop, closed-loop power control or both.

公开(公告)号：US20200213174A1

公开(公告)日：2020-07-02

申请号：US16815933

申请日：2020-03-11

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Hyejung Jung

IPC: H04L27/26 ,  H04B7/024 ,  H04J11/00 ,  H04W76/27 ,  H04W48/12 ,  H04W72/04

Abstract: Devices and methods of determining offsets for different eNBs in a dynamic switched CoMP network are generally described. A UE may receive, in an RRCConnectionReconfiguration message, DL parameter sets associated with different eNBs and having reference signal information for a PSS, SSS and DRS. The UE may receive reference signals based on the DL set associated with the eNB and determine a timing/frequency offset based on the reference signals. The offsets may be used to decode a dynamically switched PDSCH indicated by a PDCCH. The DL sets may indicate which PDCCH to detect or the PDCCH from the same cNB may be used and the PDSCH determined from a DCI in the PDCCH. A UL DCI may indicate which of UL parameter sets to use. The UL sets may indicate a reference signal to determine path loss and a timing advance value.