公开(公告)号：US12095690B2

公开(公告)日：2024-09-17

申请号：US17420449

申请日：2020-01-06

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Jie Zhu ,  Yushu Zhang ,  Daewon Lee ,  Guotong Wang

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04W72/0446 ,  H04W72/0453

Abstract: One or more computer-readable media (CRM) are disclosed. The CRM include instructions to, upon execution of the instructions by one or more processors of a base station, cause the base station to: generate a phase tracking reference signal (PT-RS) for phase shift compensation; and transmit the PT-RS across a physical downlink shared channel (PDSCH) using a single-carrier based waveform comprising a carrier frequency. The single-carrier based waveform may be SC-FDE or DFT-s-OFDM.

公开(公告)号：US11963040B2

公开(公告)日：2024-04-16

申请号：US17420785

申请日：2020-01-10

Applicant: Apple Inc.

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

IPC: H04W28/086 ,  H04B7/155 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W28/086 ,  H04B7/15542 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2636

Abstract: Some embodiments of this disclosure include apparatuses and methods for supporting integrated access and backhaul (IAB) networks. IAB nodes may be configured to broadcast in-raster and off-raster synchronization signal blocks (SSBs) for establishing communications with mobile devices and/or user equipment (UE). The SSBs may provide control resource set (CORESET) data used for establishing a communication channel between a UE and an IAB node. The CORESET data may be configured to support the broadcast of off-raster SSBs in wireless communication systems. In some embodiments, the in-raster SSB and the off-raster SSB may share the same CORESET. In this case, the IAB may modify a bit pattern of configuration table corresponding to the shared CORESET and broadcast the in-raster SSB and the off-raster SSB while including the modified bit pattern.

公开(公告)号：US11889501B2

公开(公告)日：2024-01-30

申请号：US17416743

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gang Xiong ,  Jie Zhu ,  Yushu Zhang ,  Guotong Wang ,  Daewon Lee ,  Gregory Morozov ,  Sameer Pawar

IPC: H04W72/1273 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Methods and apparatus are described for methods and apparatus for carrying out wireless communication using Long Term Evolution (LTE) in a frequency band with low peak-to-average-power. The approach includes precoding, in the frequency domain, a plurality of physical channel signals, followed by multiplexing, where the procoding is performed according to predetermined codes with a code length selected based on a length of an entire signal of the multiplexed precoded plurality of physical channel signals. In addition, the approach includes being configured to map the multiplexed precoded plurality of physical channel signals to subcarriers in the frequency band, as well to generate a time domain waveform based on the mapped signals.

公开(公告)号：US20220346102A1

公开(公告)日：2022-10-27

申请号：US17860595

申请日：2022-07-08

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 ,  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：US20210006443A1

公开(公告)日：2021-01-07

申请号：US16976624

申请日：2018-07-26

Applicant: Apple Inc.

Inventor： Gregory Morozov ,  Daewon Lee ,  Alexei Davydov ,  Seunghee Han ,  Yongjun Kwak

IPC: H04L27/26 ,  H04L5/10 ,  H04W76/11 ,  H04W56/00 ,  H04L5/00 ,  H04J13/00 ,  H04L1/00

Abstract: A reference signal sequence to modulate the demodulation reference signal for the Physical Broadcast Channel in New Radio standard is disclosed. Formulas are proposed for calculating the initialization value for the RS sequence generator so as to accord with the characteristics of New Radio.

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.