公开(公告)号：US12213179B2

公开(公告)日：2025-01-28

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: H04W74/0833

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：US12200733B2

公开(公告)日：2025-01-14

申请号：US18404410

申请日：2024-01-04

Applicant: Apple Inc.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong ,  Hwan-Joon Kwon ,  Sergey Sosnin ,  Yongjun Kwak

IPC: H04W72/23 ,  H04L1/1812 ,  H04L1/1867 ,  H04W72/044 ,  H04W72/12 ,  H04L1/08

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.

公开(公告)号：US12177028B2

公开(公告)日：2024-12-24

申请号：US17441476

申请日：2020-06-19

Applicant: Apple Inc.

Inventor： Yingyang Li ,  Yongjun Kwak

IPC: H04L1/18 ,  H04L1/1829 ,  H04L1/1867 ,  H04W72/04 ,  H04W72/23 ,  H04L1/1812

Abstract: Methods, systems, and computer programs for enhancing HARQ-ACK timing procedure. In one aspect, a method can include encoding, by a next generation NodeB (gNB), one or more sets of physical downlink shared channels (PDSCHs) with respect to a listen before talk (LBT) operation on an unlicensed spectrum, transmitting, by the gNB, the encoded one or more sets of PDSCHs to the UE, and determining, by the gNB, scheduling for receiving a HARQ-ACK from the UE corresponding to the one or more sets of PDSCHs based on the LBT operation.

公开(公告)号：US12114322B2

公开(公告)日：2024-10-08

申请号：US17441110

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Jose Armando Oviedo ,  Salvatore Talarico ,  Yongjun Kwak ,  Gang Xiong ,  Yingyang Li

IPC: H04W72/23 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/21 ,  H04W72/542

CPC classification number: H04W72/23 ,  H04L1/1812 ,  H04L5/0053 ,  H04W72/21 ,  H04W72/542

Abstract: The present application relates to wireless devices, and more particularly to apparatus, systems, and methods for multiplexing Configured Grant (CG) transmissions in New Radio (NR) systems operating on unlicensed spectrum. In one embodiment, a method for signaling a wireless system is disclosed, comprising: determining, by a user equipment (UE), that a physical uplink control channel (PUCCH) overlaps with a configured grant (CG) physical uplink shared channel (PUSCH) within a PUCCH group; multiplexing uplink control information (UCI) with a CG UCI based on the determination; and transmitting, by the UE to the wireless system, the multiplexed UCI with the CG UCI.

公开(公告)号：US12069722B2

公开(公告)日：2024-08-20

申请号：US17439244

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Bishwarup Mondal ,  Lopamudra Kundu ,  Jiwoo Kim

IPC: H04W74/08 ,  H04L1/00 ,  H04W16/14 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04L1/0013 ,  H04W16/14

Abstract: Systems, devices, and techniques for wideband operations in unlicensed spectrum are described. A described technique receiving, by a user equipment (UE), a schedule for transmitting on a Physical uplink shared channel (PUSCH) over at least a portion of a plurality of listen-before-talk (LBT) subbands of a bandwidth part (BWP) in an unlicensed spectrum. The scheduled PUSCH bandwidth indicated by the schedule can be greater than a unit bandwidth of a LBT subband. The technique includes performing, by the UE, a LBT procedure on each scheduled LBT subband of the plurality of LBT subbands, each of the scheduled LBT subbands being associated with the scheduled PUSCH bandwidth. The technique includes performing, by the UE, a PUSCH transmission in accordance with the schedule that uses one or more of the scheduled LBT subbands that have passed the LBT procedure.

公开(公告)号：US11910398B2

公开(公告)日：2024-02-20

申请号：US17903457

申请日：2022-09-06

Applicant: Apple Inc.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong ,  Hwan-Joon Kwon ,  Sergey Sosnin ,  Yongjun Kwak

IPC: H04W72/23 ,  H04W72/044 ,  H04W72/12 ,  H04L1/1812 ,  H04L1/1867 ,  H04L1/08

CPC classification number: H04W72/23 ,  H04L1/1812 ,  H04L1/1887 ,  H04L1/1896 ,  H04W72/044 ,  H04W72/12 ,  H04L1/08

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.

公开(公告)号：US11888667B2

公开(公告)日：2024-01-30

申请号：US17711127

申请日：2022-04-01

Applicant: Apple Inc.

Inventor： Gregory Morozov ,  Dae Won Lee ,  Alexei Davydov ,  Seung Hee Han ,  Yongjun Kwak

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

CPC classification number: H04L27/2613 ,  H04J13/0029 ,  H04L1/0061 ,  H04L5/0051 ,  H04L5/10 ,  H04W56/001 ,  H04W76/11

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：US20230422067A1

公开(公告)日：2023-12-28

申请号：US18467407

申请日：2023-09-14

Applicant: APPLE INC.

Inventor： Yongjun Kwak ,  Gang Xiong ,  Hong He ,  Yujian Zhang ,  Debdeep Chatterjee ,  Honglei Miao ,  Bharat Shrestha

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0053 ,  H04W76/28

Abstract: Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset Os. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein Os has an offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.

公开(公告)号：US11856607B2

公开(公告)日：2023-12-26

申请号：US17438572

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Gang Xiong ,  Yingyang Li ,  Yongjun Kwak ,  Carlos H. Aldana

IPC: H04W74/08 ,  H04W76/28 ,  H04L1/1812 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04L1/1812 ,  H04L5/0053 ,  H04W74/008 ,  H04W76/28

Abstract: Systems, methods, and circuitries are provided for adjusting contention window size (CWS). An example method includes selecting a downlink (DL) burst transmitted by the gNB for use in determining the CWS and adjusting the CWS based on Hybrid Automatic Repeat Request (HARQ) feedback received with respect to the selected DL burst.

公开(公告)号：US20220416953A1

公开(公告)日：2022-12-29

申请号：US17441476

申请日：2020-06-19

Applicant: Apple Inc.

Inventor： Yingyang Li ,  Yongjun Kwak

IPC: H04L1/18 ,  H04W72/12

Abstract: Methods, systems, and computer programs for enhancing HARQ-ACK timing procedure. In one aspect, a method can include encoding, by a next generation NodeB (gNB), one or more sets of physical downlink shared channels (PDSCHs) with respect to a listen before talk (LBT) operation on an unlicensed spectrum, transmitting, by the gNB, the encoded one or more sets of PDSCHs to the UE, and determining, by the gNB, scheduling for receiving a HARQ-ACK from the UE corresponding to the one or more sets of PDSCHs based on the LBT operation.