公开(公告)号：US10992722B2

公开(公告)日：2021-04-27

申请号：US16522272

申请日：2019-07-25

Applicant: APPLE INC.

Inventor： Honggang Li ,  Qinghua Li ,  Jong-Kae Fwu ,  Xiaogang Chen ,  Yuan Zhu

IPC: H04L29/08 ,  H04L29/06 ,  H04L12/24 ,  H04L12/26

Abstract: Techniques for facilitating device-to-device (D2D) communications using a high efficiency distributed channel access scheme are generally described herein. In some examples, a communication zone allocated for wireless D2D communications is divided into resource contention and scheduled transmission portions. The resource contention segment may be used to transmit a request message from a transmitting device to a receiving device (a request-to-send message), and transmit a response to the request message from the receiving device to the transmitting device (a clear-to-send message). The response can indicate a time for the data transmission to occur during the scheduled transmission segment. During the scheduled transmission segment, the scheduled data transmission and other D2D data transmissions among the various devices will be performed. In further examples, contention access techniques may be used during the resource contention segment to manage access to the resource channel.

公开(公告)号：US10827301B2

公开(公告)日：2020-11-03

申请号：US16005619

申请日：2018-06-11

Applicant: APPLE INC.

Inventor： Alexey Khoryaev ,  Sergey Panteleev ,  Mikhail Shilov ,  Andrey Chervyakov ,  Jong-Kae Fwu

IPC: H04W4/021 ,  H04W4/80 ,  H04W72/04 ,  H04W76/11 ,  H04W4/00 ,  H04L29/08 ,  H04W52/24 ,  H04W76/14 ,  H04W52/10 ,  H04W84/12

Abstract: Techniques for adjacent channel interference mitigation are described. In one embodiment, for example, a user equipment (UE) may comprise logic, at least a portion of which is in hardware, the logic to associate the UE with a pico evolved node B (eNB) in a time-division duplex (TDD) picocell, identify an incongruent uplink (UL) sub-frame for the picocell, and select an enhanced UL transmit power for the incongruent UL sub-frame. Other embodiments are described and claimed.

公开(公告)号：US10797771B2

公开(公告)日：2020-10-06

申请号：US15752764

申请日：2016-04-01

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Yushu Zhang ,  Yuan Zhu ,  Huaning Niu ,  Jong-Kae Fwu

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00

Abstract: User Equipment (UE) and base station (eNB) apparatus and methodology for adjusting receive beamforming. A beam refinement reference signal (BRRS) is transmitted with the same transmit beam direction on which data is to be transmitted. While receiving the BRRS, the receiver varies its receive beam direction and measures a signal characteristic of reception of the BRRS to determine a refined receive beam direction. The refined receive beam direction is used to receive the data.

公开(公告)号：US10666334B2

公开(公告)日：2020-05-26

申请号：US15746983

申请日：2015-12-11

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/27 ,  H04L1/18 ,  H04L27/26 ,  H04W72/04 ,  H04W88/10

Abstract: In one example, an apparatus of an e-NodeB (eNB) capable to establish a communication connection with a user equipment (UE) in a communication network, the eNB comprising processing circuitry to transmit a downlink (DL) beamforming training reference signal (BF-TRS) to a user equipment (UE) using transmit beamforming weights that are the same. Other examples are also disclosed and claimed.

公开(公告)号：US20200154422A1

公开(公告)日：2020-05-14

申请号：US16742043

申请日：2020-01-14

Applicant: Apple Inc.

Inventor： Jong-Kae Fwu ,  Gang Xiong

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04L27/26 ,  H04W72/12

Abstract: An eNodeB (eNB), user equipment (UE) and method of providing a flexible Radio Access Technology (FRAT) are generally described. The information (resource allocation, partition information and numerology) of at least one of a plurality of RATs used by the eNB is provided to a UE. Each RAT has a flexible subcarrier spacing and symbol duration, which are integer multiples of a base subcarrier spacing and symbol duration, and is associated with at least one of different temporal and frequency resources. The symbol and/or frame structure of each RAT are independent. A Transmission Time Interval (TTI) boundary between the RATs is common, and the RATs comprise a common reference TTI duration. The information of the RATs is provided either via a different RAT than the RAT used by the UE for communication or via a dedicated carrier in the RAT used by the UE for communication.

公开(公告)号：US20240414039A1

公开(公告)日：2024-12-12

申请号：US18804461

申请日：2024-08-14

Applicant: Apple Inc.

Inventor： Seunghee Han ,  Gang Xiong ,  Jong-Kae Fwu ,  Huaning Niu ,  Utsaw Kumar

IPC: H04L27/26 ,  H04J3/06 ,  H04J11/00 ,  H04L5/00 ,  H04W72/23

Abstract: Devices and methods of using xSS are generally disclosed. A UE receives an xPSS with (Nrep) symbols each with a subcarrier spacing of K x a PSS subcarrier spacing and a duration of a PSS symbol/K. PSD subcarriers surround the xPSS and the ZC sequence is punctured to avoid transmission on a DC subcarrier. Guard subcarriers separate the xPSS and PSD when the ZC sequence is less than the occupied BW of the xPSS and at least one element in the ZC sequence is punctured for xPSS symbol generation otherwise. One or more xSSSs and xS-SCHs may follow the xPSS. The xSS may be omnidirectional, each having a same xPSS and different xSSS or xS-SCH or a different xPSS and same xSSS or xS-SCH or beamformed, each having different xPSSs and xSSSs or xS-SCHs or a same xPSS and different xSSS or xS-SCH.

公开(公告)号：US11870716B2

公开(公告)日：2024-01-09

申请号：US17958529

申请日：2022-10-03

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04W72/21 ,  H04B1/7143 ,  H04L27/26 ,  H04W72/044 ,  H04L1/00

CPC classification number: H04L5/0044 ,  H04B1/7143 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0055 ,  H04L27/2613 ,  H04W72/044 ,  H04W72/21 ,  H04L1/0026

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：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：US20230291446A1

公开(公告)日：2023-09-14

申请号：US18090853

申请日：2022-12-29

Applicant: Apple Inc.

Inventor： Yuan Zhu ,  Qinghua Li ,  Xiaogang Chen ,  Jong-Kae Fwu

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04B7/0452

CPC classification number: H04B7/046 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0639 ,  H04L5/0014 ,  H04L5/0026 ,  H04B7/0647 ,  H04B7/065 ,  H04W84/042

Abstract: Various embodiments include an apparatus to be employed by an enhanced Node B (eNB), the apparatus comprising communication circuitry to receive, from a user equipment (UE), feedback information and control circuitry, coupled with the communication circuitry, to identify a codeword from a three-dimensional codebook based on the feedback information received from the UE, wherein the communication circuitry is further to precode data to be transmitted to the UE based on the codeword. An apparatus to be employed by a UE and additional methods are described.

公开(公告)号：US11581990B2

公开(公告)日：2023-02-14

申请号：US17319252

申请日：2021-05-13

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Pingping Zong ,  Yujian Zhang ,  Mo-Han Fong ,  Jong-Kae Fwu

IPC: H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W72/00 ,  H04L69/324 ,  H04W88/02

Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic resource allocation (DRA) of resources for machine-type communication (MTC), as a secondary partition within a system bandwidth. Allocations outside the secondary partition are configured as a primary partition for other than MTC. Apparatuses may perform MTC communications within the secondary partition when DRA configuration information includes allocation information for the secondary partition and the apparatus is configured for MTC. Otherwise, if the apparatus is other than MTC, the apparatus may refrain from performing communications in the secondary partition. Other embodiments are described.