公开(公告)号：US20220159498A1

公开(公告)日：2022-05-19

申请号：US17589626

申请日：2022-01-31

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Rui Huang ,  Yuan Zhu ,  Shuang Tian

IPC: H04W24/10 ,  H04L27/26

Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.

公开(公告)号：US11309953B2

公开(公告)日：2022-04-19

申请号：US17120931

申请日：2020-12-14

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Yuan Zhu ,  Elmar Wagner

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: A Multiple-Input-Multiple-Output (MIMO) antenna array configuration is described in one example comprising a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters, wherein the antenna elements and phase shifters form a plurality of antenna arrays, and coupled to the RF chains, and the number of antenna arrays is larger than the number of RF chains.

公开(公告)号：US20210337561A1

公开(公告)日：2021-10-28

申请号：US17368638

申请日：2021-07-06

Applicant: APPLE INC.

Inventor： Gang Xiong ,  Wenting Chang ,  Huaning Niu ,  Yushu Zhang ,  Yuan Zhu

IPC: H04W72/12 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L27/26

Abstract: Technology for a user equipment (UE) using a self-contained scheduling resource to communicate with an eNodeB within a wireless communication network is disclosed. The UE can select, at the UE, a selected eNodeB transmission (Tx) beam and a selected UE reception (Rx) beam based on a highest power beamforming reference signal (BRS) received power (BRS-RP). The UE can signal a transceiver of the UE to transmit to the eNodeB a scheduling request (SR), using the selected Rx beam, on a scheduling request (SR) resource in a self-contained subframe according to a time and frequency location of the selected eNodeB Tx beam. The UE can process an advanced physical downlink control channel (xPDCCH), received from the eNodeB, for an uplink (UL) grant using the selected UE RX beam.

公开(公告)号：US11122516B2

公开(公告)日：2021-09-14

申请号：US16407952

申请日：2019-05-09

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  RongZhen Yang ,  Yuan Zhu ,  Gang Xiong ,  Wenting Chang ,  Guotong Wang ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04B7/06 ,  H04B7/0404

Abstract: Uplink Transmission Power Control (TPC) techniques configured to compensate for variations in path loss and/or interference on a plurality of uplink transmission beams.

公开(公告)号：US11102267B2

公开(公告)日：2021-08-24

申请号：US16480149

申请日：2017-04-14

Applicant: Apple Inc.

Inventor： Yifan Yu ,  Ozgur Oyman ,  Yuan Zhu

IPC: H04L29/08 ,  H04L29/06 ,  H04L12/927 ,  H04L5/00

Abstract: Embodiments of the present disclosure describe methods and apparatuses for server- and network-assisted dynamic adaptive streaming over hypertext transport protocol signaling.

公开(公告)号：US11070999B2

公开(公告)日：2021-07-20

申请号：US16499747

申请日：2018-05-01

Applicant: APPLE INC.

Inventor： Jie Cui ,  Yuan Zhu ,  Candy Yiu ,  Rui Huang ,  Yang Tang ,  Shuang Tian ,  Dae Won Lee

IPC: H04W24/10 ,  H04L1/16 ,  H04W56/00 ,  H04W88/06

Abstract: Technology for a user equipment (UE) operable to decode measurement gap patterns received from a Next Generation NodeB (gNB) is disclosed. The UE can decode a per-frequency range (per-FR) measurement gap pattern received from the gNB in a New Radio (NR) system. The per-FR measurement gap pattern can indicate a measurement gap partem for monitoring selected frequency layers within a frequency range at the UE. The UE can process one or more measurements for the selected frequency layers within the frequency range. The one or more measurements for the selected frequency layers can be measured in accordance with the per-FR measurement gap pattern. The UE can encode the one or more measurements for the selected frequency layers for reporting to the gNB.

公开(公告)号：US11063646B2

公开(公告)日：2021-07-13

申请号：US16780477

申请日：2020-02-03

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Yuan Zhu ,  Yushu Zhang ,  Gang Xiong ,  Huaning Niu

IPC: H04B7/06 ,  H04B7/08

Abstract: Devices for and methods of synchronous beam refinement using a beam refinement reference signal (BRRS) are generally described. In one example embodiment, a UE receives BRRS information indicating switching of a Tx beam. The UE then uses this information to switch an associated Rx beam. In some embodiments, timing information is used to match the switching times. In some embodiments. DCI and CSI-RS operations are used to determine switching for the synchronous beam refinement.

公开(公告)号：US20210112516A1

公开(公告)日：2021-04-15

申请号：US17099969

申请日：2020-11-17

Applicant: Apple Inc.

Inventor： Seunghee Han ,  Shafi Bashar ,  Yuan Zhu ,  Yang Tang

IPC: H04W64/00 ,  H04J11/00 ,  G01S1/20 ,  G01S3/48 ,  G01S5/00 ,  G01S5/10 ,  G01S5/12 ,  G01S5/02

Abstract: User equipment (UE), an enhanced NodeB (eNB) and method of improving positioning accuracy and enabling vertical domain positioning of the UE are generally described. The UE may receive a prsInfo control signal having at least one PRS configuration and subsequently a plurality of Reference Signals (RSs). The RSs may have a first Positioning Reference Signal (PRS) pattern in a first set of PRS subframes and a second PRS pattern in a second set of PRS subframes received prior to a subsequent first set of PRS subframes. The RSs may have a vertical positioning RS and a lateral positioning RS. The UE may measure PRS resource elements (REs), each having a PRS, in the first and second PRS pattern. The UE may transmit a measurement of the PRS in the first and second PRS pattern. The patterns may enable horizontal and vertical positioning to be determined.

公开(公告)号：US10952188B2

公开(公告)日：2021-03-16

申请号：US16406808

申请日：2019-05-08

Applicant: Apple Inc.

Inventor： Ralf Matthias Bendlin ,  Gang Xiong ,  Jong-Kae Fwu ,  Hong He ,  Yushu Zhang ,  Seunghee Han ,  Yuan Zhu

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/7143 ,  H04L27/26 ,  H04L1/00

Abstract: Methods and apparatus are described for transmitting uplink control information (UCI) over an OFDMA-based uplink. In some embodiments, UCI symbols are mapped to resource elements (REs) in the time/frequency resource grid to maximize frequency diversity. In some embodiments, UCI is mapped in a manner that takes into account channel estimation performance by mapping UCI symbols to those REs that are closest (in terms of OFDM subcarriers/symbols) to REs that carry reference signals.

公开(公告)号：US20210076389A1

公开(公告)日：2021-03-11

申请号：US16323465

申请日：2017-08-07

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Yuhang Guo ,  Gang Xiong ,  Hua Li ,  Yuan Zhu

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04

Abstract: Technology for a user equipment (UE) operable to decode a resource mapping pattern of a phase tracking reference signal (PT-RS) received from a base station in a wireless network is disclosed. The UE can decode control signaling received in a downlink from the base station. The control signaling can indicate a resource mapping pattern for a PT-RS. The UE can identify the resource mapping pattern for the PT-RS based on the control signaling received from the base station. The UE can encode one or more PT-RS for transmission to the base station in an uplink in accordance with the resource mapping pattern for the PT-RS.