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：US10993283B2

公开(公告)日：2021-04-27

申请号：US16369187

申请日：2019-03-29

Applicant: Apple Inc.

Inventor： Jeongho Jeon ,  Seau Lim ,  Yongjun Kwak ,  Anthony Lee ,  Hwan-Joon Kwon ,  Joonyoung Cho ,  Huaning Niu

IPC: H04W74/08 ,  H04W88/02 ,  H04W72/14 ,  H04W88/04 ,  H04W88/06 ,  H04W16/14 ,  H04L5/00 ,  H04W74/00

Abstract: A network device (e.g., a user equipment (UE), or a new radio NB (gNB)) can process or generate a configuration of a physical random access channel (PRACH) over physical resource blocks (PRBs) that are interlaced in an unlicensed band in an NR unlicensed (NR-U) communication. The PRBs in the PRACH can be based on an occupied channel bandwidth (OCB) of the unlicensed band in the NR-U communication. A random access channel transmission in the PRACH can then be generated by interlacing the PRBs defining the PRACH.

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).

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：US20200287611A1

公开(公告)日：2020-09-10

申请号：US16881212

申请日：2020-05-22

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Huaning Niu ,  Yushu Zhang ,  Jong-Kae Fwu ,  Yuan Zhu ,  Ralf Matthias Bendlin

IPC: H04B7/06 ,  H04J11/00 ,  H04B7/08 ,  H04L5/00 ,  H04L27/26

Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.

公开(公告)号：US20250167952A1

公开(公告)日：2025-05-22

申请号：US18839313

申请日：2022-02-18

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Yushu Zhang ,  Yang Tang ,  Jie Cui ,  Xiang Chen ,  Dawei Zhang ,  Manasa Raghavan ,  Qiming Li

IPC: H04L5/00 ,  H04B7/06 ,  H04B17/318

Abstract: Systems and methods provide Layer 1 reference signal received power (L1-RSRP) measurement and transmission configuration indication (TCI) state switching. A cellular communications network determines a plurality transmission reception points (TRPs) configured for high speed train (HST) communication using millimeter wave (mmWave) signals, and generates a synchronization signal block (SSB) index configuration for the plurality TRPs. The SSB index configuration uses non-adjacent SSB indexes between the plurality of TRPs. A user equipment (UE), in response to entering a HST mode, performs L1-RSRP measurement sharing for SSBs received from different TRPs. A scheduling restraint may be used for TCI state switching. Autonomous UL TA adjustment timing may also be used.