公开(公告)号：US20240314709A1

公开(公告)日：2024-09-19

申请号：US18671540

申请日：2024-05-22

Applicant: Apple Inc.

Inventor： Yongjun KWAK ,  Daewon LEE ,  Gregory MOROZOV ,  Seunghee HAN

IPC: H04W56/00 ,  H04L5/00 ,  H04W52/36 ,  H04W72/23 ,  H04W74/0833

CPC classification number: H04W56/001 ,  H04L5/0048 ,  H04W52/36 ,  H04W72/23 ,  H04W74/0833

Abstract: Methods, systems, and storage media are described for random access procedures triggered based on physical downlink control channel (PDDCH) orders. Other embodiments may be described and/or claimed.

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：US20220116252A1

公开(公告)日：2022-04-14

申请号：US17421984

申请日：2020-01-09

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yushu ZHANG ,  Daewon LEE ,  Alexei DAVYDOV ,  Seunghee HAN ,  Jie Zhu

IPC: H04L27/26 ,  H04L5/00

Abstract: For single carrier based waveform, Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) and single carrier with a frequency domain equalizer (SC-FDE) can be considered for both DL and UL. For OFDM based transmission scheme including DFT-s-OFDM, a cyclic prefix (CP) is inserted at the beginning of each block, where the last data symbols in a block is repeated as the CP. Typically, the length of CP exceeds the maximum expected delay spread in order to overcome the inter-symbol interference (ISI). For SC-FDE transmission scheme, a known sequence (guard interval (GI), unique word (UW), etc.) can be inserted at both the beginning and end of one block. Further, a linear equalizer in the frequency domain can be employed to reduce the receiver complexity. Compared to OFDM, SC-FDE transmission scheme can reduce Peak to Average Power Ratio (PAPR) and thus allow the use of less costly power amplifier.

公开(公告)号：US20220116911A1

公开(公告)日：2022-04-14

申请号：US17275531

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Anthony LEE ,  Seau S. LIM ,  Yongjun KWAK ,  Daewon LEE ,  Youn Hyoung HEO ,  Lopamudra KUNDU

IPC: H04W68/02

Abstract: Systems and methods of increasing paging opportunities when the unlicensed band is used are described. The gNB sends an RRC message that indicates multiple monitoring occasions in a paging occasion of a paging frame. The UE monitors a monitoring occasion of a PO to determine whether a PDCCH with a P-RNTI has been received in an unlicensed band. If such a PDCCH is received, the UE decodes PDSCH information in the PDCCH to determine whether the P-RNTI is a P-RNTI of the UE. If so, the UE avoids monitoring subsequent monitoring occasions of the PO. If the PDCCH does not contain a P-RNTI, the UE continues to monitor other monitoring occasions within the PO.

公开(公告)号：US20220094487A1

公开(公告)日：2022-03-24

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 ,  H04W72/04

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：US20220078825A1

公开(公告)日：2022-03-10

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: H04W72/12 ,  H04W72/04

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：US20210399855A1

公开(公告)日：2021-12-23

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: H04L5/00

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：US20220078085A1

公开(公告)日：2022-03-10

申请号：US17527010

申请日：2021-11-15

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

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：US20240297759A1

公开(公告)日：2024-09-05

申请号：US18655475

申请日：2024-05-06

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：US20220140967A1

公开(公告)日：2022-05-05

申请号：US17427424

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Alexey KHORYAEV ,  Mikhail SHILOV ,  Sergey PANTELEEV ,  Sergey SOSNIN ,  Daewon LEE

IPC: H04L5/00 ,  H04W56/00 ,  H04W4/46

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) for a wireless communication system. The UE determines at least one sidelink primary synchronization signal (S-PSS) sequence of at least one S-PSS signal. The at least one S-PSS sequence is different from a primary synchronization signal (PSS) sequence. The EE also determines at least one sidelink secondary synchronization signal (S-SSS) sequence of at least one S-SSS signal. The EE determines a plurality of S-PSS symbols and a plurality of S-SSS symbols corresponding to a sub carrier spacing (SCS). The EE transmits to another EE the determined plurality of S-SSS symbols after the determined plurality of S-PSS symbols. The SCS may be associated with a physical resource block (PRB) allocation size. A maximum of 11 PRBs for a sidelink synchronization signal block (S-SSB) may be set based on the SCS.