公开(公告)号：US10924156B2

公开(公告)日：2021-02-16

申请号：US16261130

申请日：2019-01-29

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Huaning Niu ,  Wenting Chang

IPC: H04J3/14 ,  H04L12/26 ,  H04L12/28 ,  H04B1/7143 ,  H04B1/715 ,  H04W4/70 ,  H04W16/14 ,  H04W4/80 ,  H04W76/11

Abstract: Described herein are methods and apparatus for NB-IoT devices to operate in unlicensed spectrum. Frequency hopping patterns are disclosed that enable compliance with applicable regulations. A base station may be configured to operate in Multefire (MF) narrowband internet of things (NB IoT) cell over unlicensed spectrum. The base station may communicate with one or more wireless devices over a specified number N of data channels separate in frequency. The frequencies of the data channels may be specified by a frequency hopping sequence. The base station may be configured to encode an anchor channel for transmission to the one or more wireless devices at a fixed frequency interspersed in time with the data channels.

公开(公告)号：US10784942B2

公开(公告)日：2020-09-22

申请号：US15767113

申请日：2016-11-08

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W74/08 ,  H04W16/28

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to associate a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry may be operable to generate a first BRS transmission carrying the first BRS, and to generate one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry may be operable to provide information regarding the first BRS and the second BRSes to the second circuitry.

公开(公告)号：US11742924B2

公开(公告)日：2023-08-29

申请号：US17025094

申请日：2020-09-18

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04B7/0695 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0048 ,  H04W16/28 ,  H04W74/0833 ,  H04L5/0007

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus comprises a first circuitry, a second circuitry, and a third circuitry. The first circuitry is operable to associate a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry is operable to generate a first BRS transmission carrying the first BRS, and to generate one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry is operable to provide information regarding the first BRS and the second BRSes to the second circuitry.

公开(公告)号：US11689261B2

公开(公告)日：2023-06-27

申请号：US17664564

申请日：2022-05-23

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Yuan Zhu ,  Yushu Zhang ,  Huaning Niu ,  Wenting Chang

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0413 ,  H04W72/20 ,  H04L5/00

CPC classification number: H04B7/0486 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0048 ,  H04W72/20

Abstract: Example embodiments are directed towards beam formation matching for communications between a receiver and transmitter in a multiple beam Multiple Input Multiple Output (MIMO) system.

公开(公告)号：US11664940B2

公开(公告)日：2023-05-30

申请号：US16465225

申请日：2018-08-13

Applicant: Apple Inc.

Inventor： Jeongho Jeon ,  Huaning Niu ,  Wenting Chang ,  Jinyu Zhang ,  Dae Won Lee ,  Alexei Davydov ,  Kyeongin Jeong ,  Candy Yiu

IPC: H04L1/20 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W56/00 ,  H04W72/04

CPC classification number: H04L1/201 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2656 ,  H04W24/08 ,  H04W56/0045 ,  H04W72/0413

Abstract: A user equipment (UE) may assess a radio link quality of a plurality of frames for communication, via the interface to the RF circuitry, with a radio access network (RAN) node. When the radio link quality of a frame, of the plurality of frames, is below an out-of-sync (OOS) threshold, the UE may indicate that the frame is OOS. When the radio link quality of a frame, of the plurality of frames, is above an in-sync (IS) threshold that the frame is IS. Additionally, or alternatively, the UE may process information, received from the RAN node indicating a partial subframe, of a subframe, to be used to transmit uplink control information (UCI) to the RAN node. The UE ma also perform UCI mapping for using of the partial subframe to transmit UCI via a physical uplink control channel (PUSCH), and proceed by using the partial subframe to communicate the UCI to the RAN node.

公开(公告)号：US11637602B2

公开(公告)日：2023-04-25

申请号：US17350527

申请日：2021-06-17

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：US11246119B2

公开(公告)日：2022-02-08

申请号：US17007835

申请日：2020-08-31

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Huaning Niu ,  Salvatore Talarico ,  Rongrong Sun

IPC: H04W72/04 ,  H04L1/16 ,  H04L27/26 ,  H04L29/08 ,  H04W56/00

Abstract: Methods, systems, and storage media are described for the indication of frequency hopping and downlink (DL)/uplink (UL) configuration in narrowband Internet-of-Things (NB-IoT) systems. Other embodiments may be described and/or claimed.

公开(公告)号：US11245480B2

公开(公告)日：2022-02-08

申请号：US16787344

申请日：2020-02-11

Applicant: Apple Inc.

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

IPC: H04B17/327 ,  H04B7/06 ,  H04L5/00

Abstract: Devices and methods of simultaneous data reception and measurement are generally described. A UE transmits to an eNB antenna capacity and receives a Beamformed Reference Signal (BRS) configuration in response. Beamformed signals from the eNB include a BRS subframe in accordance with the BRS configuration. The BRS subframe has a BRS whose structure depends on the UE antenna capacity. If the UE has a single antenna panels, neither an EPDCCH nor a PDSCH for the UE is in the BRS frame. If the UE has a single antenna panels and multiple ports or multiple antenna panels, the BRS may contain an EPDCCH or PDSCH for the UE as different ports or antenna panels may be assigned different functionality. The UE measures BRS Received Power (BRS-RP) of the BRS, transmits a BRS report based on the BRS-RP and selects an optimal beam based on BRS-RPs from BRSs of the beams.

公开(公告)号：US20210410184A1

公开(公告)日：2021-12-30

申请号：US17269321

申请日：2019-08-28

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Huaning Niu ,  Anthony Lee ,  Wenting Chang

IPC: H04W74/08 ,  H04W16/14 ,  H04L5/14 ,  H04L5/00

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) device that includes one or more processors configured to determine, based on a DL signal in an LTE-TDD radio frame, that an eNB has assessed, based on a Cat-2 listen before talk (LBT) procedure, that a radio frame is valid; and in response to determining that the radio frame is valid, transmitting a UL burst within a predetermined period of time after a DL burst in the radio frame.

公开(公告)号：US20210359815A1

公开(公告)日：2021-11-18

申请号：US17444022

申请日：2021-07-29

Applicant: APPLE INC.

Inventor： Qiaoyang Ye ,  Huaning Niu ,  Wenting Chang ,  Salvatore Talarico

IPC: H04L5/00 ,  H04W4/70 ,  H04W16/14 ,  H04W48/10 ,  H04W74/08

Abstract: Technology for a Next Generation NodeB (gNB) operable to communicate over an anchor channel for Unlicensed Internet of Things (U-IoT) is disclosed. The gNB can encode control information for transmission on two discovery reference signal (DRS) subframes to a user equipment (UE). The control information can be transmitted on an anchor channel having a set frequency for U-IoT in an adaptive frequency hopping system. The control information can include: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH) transmission, and a system information block for MulteFire bandwidth reduced (SIB-MF-BR).