公开(公告)号：US11350449B2

公开(公告)日：2022-05-31

申请号：US16328456

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Huaning Niu ,  Wenting Chang

IPC: H04W4/00 ,  H04W74/08 ,  G16Y10/75 ,  H04B1/7156 ,  H04L5/00 ,  H04W28/26 ,  H04W72/04 ,  H04W72/12

Abstract: Downlink transmissions can be generated to schedule one or more Internet of Things (IoT) devices for communication on unlicensed channels via frequency hopping operations/procedures. An evolved NodeB (eNB) or a next generation NodeB (gNB) can perform a listen before talk (LBT) on the unlicensed channels that are scheduled for transmission by at least one of: one or more IoT devices or one or more user equipments (UEs). A preamble or a common physical downlink control channel (CPDCCH) can be transmitted to reserve the unlicensed channels for the IoT devices/UEs. The preamble or the PDCCH can include a duration of the duration to provide notice to other eNBs/gNBs or trigger the IoT devices of a successful LBT corresponding to the unlicensed channels.

公开(公告)号：US11342974B2

公开(公告)日：2022-05-24

申请号：US17247416

申请日：2020-12-10

Applicant: Apple Inc.

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

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/04

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：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：US11109360B2

公开(公告)日：2021-08-31

申请号：US16267810

申请日：2019-02-05

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W72/00 ,  H04W56/00 ,  H04L29/08 ,  H04W88/02

Abstract: An apparatus and method for frequency hopping in the unlicensed band are described. A NB-IoT UE receives a MIB from a RAN. The MIB includes a DL/UL configuration for communication with the RAN. Frequency hopping information is preconfigured in the UE. The MIB is received in an anchor segment of a fixed NB anchor channel in the unlicensed band. The frequency hopping sequence is determined based on timing information carried in a PBCH on the anchor channel. Data is communicated between the NB-IoT UE and the RAN in data segments on the data channels in accordance with the frequency hopping sequence.

公开(公告)号：US11096247B2

公开(公告)日：2021-08-17

申请号：US16384672

申请日：2019-04-15

Applicant: Apple Inc.

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

IPC: H04W88/10 ,  H04W4/80 ,  H04L1/18 ,  H04W72/04 ,  H04W56/00

Abstract: Methods, systems, and storage media are described for the transmission of system information in narrowband Internet-of-Things (NB-IoT) systems. Other embodiments may be described and/or claimed.

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：US11032781B2

公开(公告)日：2021-06-08

申请号：US16475667

申请日：2017-12-29

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Huaning Niu ,  Qiaoyang Ye

IPC: H04W52/38 ,  H04W52/24 ,  H04W16/14

Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to establish that Downlink (DL) transmissions from a second Evolved Node-B (eNB) will interfere in one or more subframes with Uplink (UL) transmissions from the UE to a first eNB. The second circuitry may be operable to modulate a UL transmission power based upon the established interference condition.

公开(公告)号：US10959270B2

公开(公告)日：2021-03-23

申请号：US16446177

申请日：2019-06-19

Applicant: Apple Inc.

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

IPC: H04L12/28 ,  H04W74/08 ,  H04L5/14 ,  H04L29/08 ,  H04W72/04 ,  H04W4/70 ,  H04J1/16 ,  H04W88/02

Abstract: Systems and methods of providing a NPRACH preamble in a multefire system are described. A UE configured for multefire NB-IoT or eMTC operation receives, from an eNB, access information that includes a SIB on a narrowband channel of an unlicensed band. Based on the access information, the UE transmits a NPRACH preamble in two or six contiguous uplink subframes. The NPRACH preamble is transmitted in two or six contiguous subframes. When two subframes are used, four symbol groups each having a 266.7 μs CP and two symbols are transmitted without a gap therebetween. When six subframes are used, four symbol groups each having a 266.7 μs CP and five symbols are transmitted without a gap therebetween.

公开(公告)号：US20210058206A1

公开(公告)日：2021-02-25

申请号：US16496375

申请日：2018-04-12

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 5 (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-MF10 BR).