公开(公告)号：US20220109532A1

公开(公告)日：2022-04-07

申请号：US17429871

申请日：2020-02-11

Applicant: Apple Inc.

Inventor： Salvatore TALARICO ,  Gang XIONG ,  Yingyang LI ,  Carlos H. ALDANA

IPC: H04L1/18 ,  H04L27/00 ,  H04L5/00 ,  H04W74/08

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for facilitating retransmission procedures in New Radio (NR) technologies. Some embodiments are directed to a method that includes determining a contention window size (CWS) of an uplink/downlink (UL/DL) communication channel in a new radio unlicensed (NR-U) spectrum. The method also includes adjusting the CWS based on: defining a reference UL/DL burst set at a predetermined time length independent from a subcarrier spacing and partially spanning an UL/DL burst, and counting one or more code block groups (CBGs) in the reference UL/DL burst. The method further includes scheduling a retransmission of an UL/DL communication in the NR-U spectrum based on the adjusted CWS.

公开(公告)号：US20220095379A1

公开(公告)日：2022-03-24

申请号：US17420185

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yushu ZHANG ,  Yongjun KWAK ,  Sergey SOSNIN ,  Hwan-Joon KWON

IPC: H04W74/08

Abstract: Some embodiments of this disclosure include apparatuses and methods for a fallback procedure for a 2-step random access channel (RACH) procedure for data transmission in a wireless communication system where the apparatuses and methods include at least generating, by a user equipment (UE), a first signal that includes a first message (MsgA) for a 2-step random access channel (RACH) procedure, transmitting, by the UE, the first signal to a next generation NodeB (gNB), determining, by the UE, whether a 4-step RACH procedure is to be used to further transmit the first signal including the MsgA, and further transmitting, by the UE, the first signal to the gNB using the 4 step RACH procedure based on determining that the 4-step RACH procedure should be used.

公开(公告)号：US20220085940A1

公开(公告)日：2022-03-17

申请号：US17423284

申请日：2020-01-22

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Alexei Davydov ,  Yushu Zhang ,  Hong He ,  Daewon Lee ,  Jie Zhu

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

Abstract: Some embodiments of this disclosure include apparatuses and methods for physical downlink control channel design for a discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform. The apparatuses and methods can include at least operating a base station (BS) to generate one or more physical downlink control channels (PDCCH) in a time division multiplexing (TDM) manner using a Discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform, generate a demodulation reference signal (DMRS) which is multiplexed in the TDM manner with the one or more PDCCH, and transmit the one or more PDCCH and the DMRS to a user equipment (UE).

公开(公告)号：US20210203394A1

公开(公告)日：2021-07-01

申请号：US17199901

申请日：2021-03-12

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Victor SERGEEV ,  Guotong WANG ,  Alexei DAVYDOV ,  Gang XIONG

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0408 ,  H04L1/18 ,  H04W72/04 ,  H04W76/27 ,  H04L1/00

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.

公开(公告)号：US20210006320A1

公开(公告)日：2021-01-07

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

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：US20240276598A1

公开(公告)日：2024-08-15

申请号：US18646364

申请日：2024-04-25

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Debdeep CHATTERJEE ,  Alexey KHORYAEV ,  Sergey PANTELEEV ,  Hong HE ,  Yushu ZHANG ,  Yongjun KWAK

IPC: H04W88/06 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1867 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0446

CPC classification number: H04W88/06 ,  H04L1/0013 ,  H04L1/0061 ,  H04L1/1664 ,  H04L1/1819 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0055 ,  H04W24/08 ,  H04W72/0446

Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to process one or more configuration transmissions from the gNB carrying a rule for Uplink (UL) collisions and process a first Downlink (DL) transmission and a second DL transmission. The second circuitry may be operable to identify a first UL transmission for the first DL transmission and a second UL transmission for the second DL transmission, the first UL transmission overlapping with the second UL transmission in at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol. The third circuitry may be operable to generate at least one of the first UL transmission and the second UL transmission in accordance with the rule for UL collisions.

公开(公告)号：US20240015070A1

公开(公告)日：2024-01-11

申请号：US18470699

申请日：2023-09-20

Applicant: APPLE INC.

Inventor： Honglei MIAO ,  Jeongho JEON ,  Alexei DAVYDOV ,  Hong HE ,  Debdeep CHATTERJEE ,  Joonyoung CHO ,  Daewon LEE ,  Gang XIONG

IPC: H04L41/0896 ,  H04W16/32 ,  H04W76/28 ,  H04L5/00 ,  H04W72/0453

CPC classification number: H04L41/0896 ,  H04W16/32 ,  H04W76/28 ,  H04L5/00 ,  H04L5/0098 ,  H04L5/001 ,  H04W72/0453 ,  H04W76/27

Abstract: The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed. The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.

公开(公告)号：US20230164738A1

公开(公告)日：2023-05-25

申请号：US18101101

申请日：2023-01-24

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Guotong WANG ,  Alexei DAVYDOV ,  Gang XIONG

IPC: H04W64/00 ,  H04W76/28 ,  H04L1/20 ,  H04L5/00 ,  H04W56/00 ,  H04W72/0446 ,  H04W80/08 ,  H04W72/30

CPC classification number: H04W64/003 ,  H04W76/28 ,  H04L1/203 ,  H04L5/0007 ,  H04L5/0051 ,  H04W56/001 ,  H04W72/0446 ,  H04W80/08 ,  H04W72/30

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Tracking Reference Signal (TRS) transmission and to process a Synchronization Signal block (SS-block) transmission. The second circuitry may be operable to measure a reference signal parameter based on the TRS transmission and the SS-block transmission.

公开(公告)号：US20230036278A1

公开(公告)日：2023-02-02

申请号：US17950530

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Wenting CHANG ,  Gang XIONG ,  Yuan ZHU ,  Huaning NIU ,  Yushu ZHANG

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

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：US20220247540A1

公开(公告)日：2022-08-04

申请号：US17660102

申请日：2022-04-21

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Hyejung JUNG ,  Ralf BENDLIN ,  Jong-Kae FWU ,  Alexei DAVYDOV

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04

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.