公开(公告)号：US12068896B2

公开(公告)日：2024-08-20

申请号：US17426387

申请日：2020-02-03

Applicant: Apple Inc.

Inventor： Jie Zhu ,  Gang Xiong ,  Daewon Lee

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/26025 ,  H04L27/2603 ,  H04L27/2613 ,  H04L27/2636 ,  H04L5/0051

Abstract: An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.

公开(公告)号：US12052788B2

公开(公告)日：2024-07-30

申请号：US17270914

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Lili Wei ,  Qian Li ,  Dawei Ying ,  Daewon Lee ,  Yushu Zhang ,  Geng Wu

IPC: H04J3/14 ,  H04B7/0408 ,  H04B7/06 ,  H04W76/19

CPC classification number: H04W76/19 ,  H04B7/0408 ,  H04B7/0695

Abstract: Techniques discussed herein can facilitate reduced frequency of triggering a RLF (Radio Link Failure) timer and/or a false RLF procedure via employing one or more mechanisms for associating BFR (Beam Failure Recovery) and RLF. A first mechanism that can be employed in various embodiments can perform one or more RLF-related actions (e.g., stopping a T310 timer, resetting a N310 counter) upon BFR success. A second mechanism that can be employed in various embodiments can comprise revising one or more RLF parameters (e.g., N310, N311, T310, Out-of-sync threshold, in-sync threshold, etc.) based on the presence of a strong BFR mechanism.

公开(公告)号：US12021773B2

公开(公告)日：2024-06-25

申请号：US17292312

申请日：2019-11-07

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Gang Xiong ,  Guotong Wang ,  Bishwarup Mondal ,  Daewon Lee ,  Yushu Zhang ,  Yang Tang

IPC: H04W56/00 ,  H04L5/00

CPC classification number: H04L5/0048

Abstract: Embodiments of the present disclosure provide for uplink and downlink beam management for partial beam correspondence user equipments. Other embodiments may be described and claimed.

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：US11178012B2

公开(公告)日：2021-11-16

申请号：US16123722

申请日：2018-09-06

Applicant: Apple Inc.

Inventor： Honglei Miao ,  Jeongho Jeon ,  Alexei Davydov ,  Hong He ,  Debdeep Chatterjee ,  Joonyoung Cho ,  Daewon Lee ,  Gang Xiong

IPC: H04L12/24 ,  H04W16/32 ,  H04W76/28 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W88/02

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：US12149463B2

公开(公告)日：2024-11-19

申请号：US17279948

申请日：2019-09-27

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Bishwarup Mondal ,  Gang Xiong ,  Yongjun Kwak ,  Daewon Lee

IPC: H04L5/00 ,  H04W74/0808

Abstract: The present invention discloses one or more computer-readable media comprising instructions to: determine SRS resource allocation information to configure uplink resources for an SRS, the uplink resources to include a plurality of bandwidth ranges within a sounding bandwidth; perform a LET procedure in individual bandwidth ranges of the plurality of bandwidth ranges to detect at least one bandwidth range available for the SRS; and generate the SRS for transmission within the at least one bandwidth range.

公开(公告)号：US11991111B2

公开(公告)日：2024-05-21

申请号：US17421791

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Bishwarup Saso Mondal ,  Prerana Rane ,  Yongjun Kwak ,  Daewon Lee

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/044

CPC classification number: H04L5/005 ,  H04B7/0695 ,  H04L5/0078 ,  H04W72/044

Abstract: Disclosed herein are system, method, and computer program product embodiments for performing Synchronization Single Block (SSB) transmission using a number of SSB beams. An embodiment operates by determining a SSB index for a SSB based on a candidate position in a set of candidate positions and the number of SSB beams. The embodiment determines a shift value for the SSB index based on the candidate position and the number of SSB beams. The embodiment determines a frame timing for the SSB based the SSB index and the shift value for the SSB index. The embodiment then transmits, by radio front end circuitry, the SSB to a user equipment (UE) based on the frame timing for the SSB.

公开(公告)号：US20240015831A1

公开(公告)日：2024-01-11

申请号：US18469625

申请日：2023-09-19

Applicant: Apple Inc.

Inventor： Lili Wei ,  Qian Li ,  Dawei Ying ,  Daewon Lee ,  Yushu Zhang ,  Geng Wu

IPC: H04W76/19 ,  H04B7/0408 ,  H04B7/06

CPC classification number: H04W76/19 ,  H04B7/0408 ,  H04B7/0695

Abstract: Techniques discussed herein can facilitate reduced frequency of triggering a RLF (Radio Link Failure) timer and/or a false RLF procedure via employing one or more mechanisms for associating BFR (Beam Failure Recovery) and RLF. A first mechanism that can be employed in various embodiments can perform one or more RLF-related actions (e.g., stopping a T310 timer, resetting a N310 counter) upon BFR success. A second mechanism that can be employed in various embodiments can comprise revising one or more RLF parameters (e.g., N310, N311, T310, Out-of-sync threshold, in-sync threshold, etc.) based on the presence of a strong BFR mechanism.

公开(公告)号：US11388730B2

公开(公告)日：2022-07-12

申请号：US16483252

申请日：2018-03-23

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Wook Bong Lee ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Daewon Lee ,  Seung Hee Han ,  Alexei Davydov ,  Guotong Wang

IPC: H04W72/08 ,  H04B17/318 ,  H04W76/19 ,  H04W72/04

Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to select one or more recovery channels based on one or more recovery factors; determine a beam recovery frame structure using the selected one or more recovery channels and based at least partially on beam correspondence capabilities; and provide the selected one or more recovery channels and the determined beam recovery frame structure to the RF interface for transmission to a user equipment (UE) device.

公开(公告)号：US20220166580A1

公开(公告)日：2022-05-26

申请号：US17426387

申请日：2020-02-03

Applicant: Apple Inc.

Inventor： Jie ZHU ,  Gang XIONG ,  Daewon Lee

IPC: H04L5/00 ,  H04L27/26

Abstract: An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.