公开(公告)号：US20220201799A1

公开(公告)日：2022-06-23

申请号：US17692607

申请日：2022-03-11

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Glenn J. Bradford ,  Yushu Zhang ,  Jong-Kae Fwu ,  Yuan Zhu

IPC: H04W88/06 ,  H04L1/18 ,  H04L5/00 ,  H04W76/27 ,  H04B7/06 ,  H04L5/14 ,  H04W72/04

Abstract: Devices for and methods of providing low latency 5G FDD communications are generally described. A HARQ ACK/NACK for an xPDSCH is transmitted in the xPUCCH of the same or next subframe as the xPDSCH and xPDCCH. An xPUSCH is generated in the same subframe in response to an xPDCCH and HARQ ACK/NACK response is carried by another xPDCCH or xPHICH in the same or next sub frame. The xPDCCH and the xPUCCH are at opposite ends of the same subframe, DL and UL subframe are delayed relative to each other, or at least one of the DL and UL subframe has an additional blank portion, portion with data associated with another UE or portion that contains a reference signal, broadcast signal or control information.

公开(公告)号：US11201657B2

公开(公告)日：2021-12-14

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 ,  H04W72/04 ,  H04W84/04

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：US11191064B2

公开(公告)日：2021-11-30

申请号：US15501152

申请日：2015-06-04

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Seunghee Han ,  Debdeep Chatterjee ,  Jong-Kae Fwu

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04W48/12 ,  H04W74/08 ,  H04W48/16

Abstract: Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved Node B (eNB). The UE and eNB may perform enhanced physical downlink control channel (EPDCCH)-less operation for scheduling of one or more common control messages, such as one or more system information blocks (SIBs), a random access response (RAR) message, or a paging message. Additionally, or alternatively, an eNB may configure a subset of aggregation levels for the search space of the UE to use for receiving a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH). Other embodiments may be described and/or claimed.

公开(公告)号：US11190327B2

公开(公告)日：2021-11-30

申请号：US16085124

申请日：2017-04-13

Applicant: Apple Inc.

Inventor： Peng Lu ,  Qiaoyang Ye ,  Gang Xiong ,  Glenn J. Bradford ,  Joonyoung Cho ,  Jong-Kae Fwu ,  Bishwarup Mondal

IPC: H04L5/00 ,  H04J13/00 ,  H04L7/00

Abstract: A method is provided to generate and control transmission of reference symbols in a synchronization subframe, wherein a reference symbol includes reference values mapped to a block of K subcarriers. The method includes generating data corresponding to a basic subsequence of K−R1−R2 reference values, where R1 and R2 are integers such that 1≤R1+R2

公开(公告)号：US11160090B2

公开(公告)日：2021-10-26

申请号：US16857420

申请日：2020-04-24

Applicant: APPLE INC.

Inventor： Hong He ,  Jong-Kae Fwu ,  Alexey Khoryaev ,  Youn Hyoung Heo

IPC: H04W72/08 ,  H04W52/02 ,  H04W4/70 ,  H04W16/28 ,  H04J11/00 ,  H04W28/12 ,  H04B7/06 ,  H04L5/00 ,  H04B17/318 ,  H04L5/14 ,  H04W36/00 ,  H04W24/08 ,  H04W72/04 ,  H04W74/08 ,  H04L29/06 ,  H04W24/02 ,  H04W24/10 ,  H04W36/30 ,  H01Q1/24 ,  H01Q3/00 ,  H04W76/14 ,  H04W76/11 ,  H04W76/27 ,  H04W76/10 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08 ,  H04W84/18 ,  H04W84/04

Abstract: A technology is disclosed for an evolved Node B (eNB) operable to transmit a physical downlink control channel (PDCCH) to a user equipment (UE). The eNB can determine a set of configuration indication fields numbered 1 to N, included in a downlink control information (DCI) format Y carried on the PDCCH, where N = ⌊ L format ⁢ ⁢ Y M ⌋ , Lformat Y is equal to a payload size of the DCI format Y, and M is a number of bits of each configuration indication field. The eNB can map the DCI format Y onto the PDCCH. The eNB can transmit to the UE the PDCCH with a cyclic redundancy check (CRC) scrambled by an enhanced interference mitigation and traffic adaptation (eIMTA) Radio-Network Temporary Identifier (RNTI) for the UE.

公开(公告)号：US11159213B2

公开(公告)日：2021-10-26

申请号：US15747010

申请日：2015-12-26

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/0456 ,  H04L5/00 ,  H04W84/04

Abstract: Apparatus, systems, and methods to implement receive beamforming in communication systems are described. In one example, apparatus of an evolved Node B (eNB) comprising processing circuitry to receive, from a user equipment (UE), a beamforming reference signal received power (BRS-RP) measurement and in response to the BRS-RP measurement, configure a downlink (DL) transmit (Tx) beamforming and a receiving (Rx) beamforming process on the UE. Other examples are also disclosed and claimed.

公开(公告)号：US11139932B2

公开(公告)日：2021-10-05

申请号：US16808165

申请日：2020-03-03

Applicant: APPLE INC.

Inventor： Alexey Khoryaev ,  Andrey Chervyakov ,  Mikhail Shilov ,  Jong-Kae Fwu ,  Hong He

IPC: H04L5/22 ,  H04J3/00 ,  H04W72/12 ,  H04W28/02 ,  H04L5/00 ,  H04W16/32 ,  H04W76/27 ,  H04W76/11 ,  H04W48/10 ,  H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W88/06 ,  H04W12/0431 ,  H04W84/12 ,  H04W76/28 ,  H04W76/14 ,  H04B7/0417 ,  H04B7/0456 ,  H04L1/18 ,  H04L5/14 ,  H04L9/14 ,  H04L12/26 ,  H04L29/06 ,  H04L29/08 ,  H04W4/06 ,  H04W8/00 ,  H04W36/22 ,  H04W48/08 ,  H04W48/20 ,  H04W68/02 ,  H04W72/00 ,  H04W72/02 ,  H04W74/00 ,  H04W24/02 ,  H04W24/10 ,  H04W48/16 ,  H04W12/02 ,  H04W36/00 ,  H04W12/50

Abstract: Technology for a user equipment (UE) operable to perform adaptive time division duplexing (TDD) hybrid automatic repeat request (HARQ)-ACKnowledgement (ACK) reporting is described. The UE can implement an adaptive uplink-downlink (UL-DL) configuration received from an eNodeB. The UE can decode a downlink (DL) HARQ reference configuration received from the base station for a serving cell, wherein the DL HARQ reference configuration is for the implemented adaptive UL-DL configuration. The UE can decode a reference UL-DL configuration received from the base station via a system information block (SIB). The UE can encode HARQ-ACK feedback for transmission on an uplink channel of the serving cell in accordance with the DL HARQ reference configuration. The UE can perform uplink scheduling and the HARQ-ACK feedback based on the reference UL-DL configuration received from the base station via the SIB.

公开(公告)号：US11044059B2

公开(公告)日：2021-06-22

申请号：US16809985

申请日：2020-03-05

Applicant: APPLE INC.

Inventor： Gang Xiong ,  Hong He ,  Ralf Bendlin ,  Ajit Nimbalker ,  Jong-Kae Fwu

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

Abstract: Disclosed are embodiments related to implementing a dynamic resource allocation and transmission scheme for a fifth generation (5G) physical uplink control channel (xPUCCH) in a 5G system. In particular, embodiments include mechanisms to dynamically allocate resources for the transmission of xPUCCH, and resource mapping schemes for 5G systems supporting more than one symbol allocated for an xPUCCH transmission.

公开(公告)号：US10966283B2

公开(公告)日：2021-03-30

申请号：US15781462

申请日：2016-04-29

Applicant: APPLE INC.

Inventor： Gang Xiong ,  Hong He ,  Ajit Nimbalker ,  Joonyoung Cho ,  Jong-Kae Fwu

IPC: H04W88/06 ,  H04W76/11 ,  H04W76/27 ,  H04L5/00 ,  H04L5/10 ,  H04W72/04 ,  H04W72/14 ,  H04W80/08

Abstract: Technology for a user equipment (UE) using a self-contained time division duplex (TDD) subframe to communicate with an eNodeB within a wireless communication network is disclosed. The UE can determine, at the UE, an advanced physical uplink control channel (xPUCCH) resource index to designate one or more physical resources for transmission of the xPUCCH, wherein the one or more physical resources are multiplexed using at least one or more of frequency division multiplexing (FDM), code division multiplexing (CDM), or combination thereof. The UE can signal a transceiver of the UE to transmit to the eNodeB up link control information (UCI) using the one or more physical resources designated by the xPUCCH resource index.

公开(公告)号：US10959212B2

公开(公告)日：2021-03-23

申请号：US15747270

申请日：2015-12-23

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Jong-Kae Fwu ,  Ralf Bendlin ,  Seunghee Han

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W76/28

Abstract: Methods and apparatuses for communicating in a cellular communications network, including provision of a user equipment comprising processing circuitry to: receive from a first cell a control signal comprising a physical Time Division Duplex Uplink-Downlink configuration indicator channel (PTCICH); decode from the PTCICH a Time Division Duplex Uplink-Downlink (TDD UL-DL) configuration; and communicate with the first cell having applied the TDD UL-DL configuration in respect of subframes associated with the first cell, wherein: the PTCICH spans less than or equal to 32 Resource Elements. Also user equipment comprising processing circuitry to: receive a control signal from a first cell; decode the control signal received from the first cell thereby to determine a second cell TDD UL-DL configuration; and communicate with the second cell having applied the second cell TDD UL-DL configuration in respect of subframes associated with the second cell.