公开(公告)号：US12035367B2

公开(公告)日：2024-07-09

申请号：US18365112

申请日：2023-08-03

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04W72/12

Abstract: Methods and apparatus are disclosed for a UE and its serving base station in 5G NR systems to signal channel scan or channel sensing to allow channel occupancy time (COT) sharing before transmissions. The COT sharing may be initiated by the base station or by the UE by asserting a CCA indication to enable channel sensing by a UE or base station, respectively. When the UE receives and decodes the asserted CCA indication during downlink transmission, the UE may perform channel sensing during a short interframe space (SIFS) between the downlink transmission and a scheduled uplink transmission. When the UE detects that the sensed RF energy across an intended transmission band is greater than an energy detect threshold, the UE may refrain from transmitting during the scheduled uplink transmission. Otherwise or when the CCA indication is de-asserted, the UE may transmit during the scheduled uplink transmission without performing channel sensing.

公开(公告)号：US11901999B2

公开(公告)日：2024-02-13

申请号：US17437809

申请日：2020-05-29

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Alexei Davydov ,  Yingyang Li ,  Guotong Wang

IPC: H04L5/00 ,  H04W52/32 ,  H04W52/28 ,  H04B7/06 ,  H04L27/26

CPC classification number: H04B7/0695 ,  H04L5/0051 ,  H04L5/0055 ,  H04W52/281 ,  H04W52/325 ,  H04L27/2602

Abstract: Apparatuses, systems, and methods for multiplexing of PUCCH for beam failure recovery and other signals. A UE may determine a transmission dropping rule and a transmission power scaling rule for a PUCCH which is dedicatedly configured for secondary BFR transmission, such as a PUCCH-BFR, when it is multiplexed with BFR multiplexed with at least one other signal. The PUCCH-BFR and the at least one other signal may be multiplexed in a CC or in multiple CCs. The UE may determine a transmission dropping rule, e.g., so that UE can transmit an uplink signals with higher priority and drop the other uplink signal with lower priority to avoid beam collisions. The UE may determine a transmission power scaling rule, e.g., so the UE may scale transmission power within a CC and/or across CCs. The UE may multiplex the PUCCH-BFR with the at least one other signal according to the rules.

公开(公告)号：US20220174736A1

公开(公告)日：2022-06-02

申请号：US17442393

申请日：2020-03-30

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/14

Abstract: A network device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component) can process or generate a Physical Uplink Shared Channel (PUSCH) based on a configured grant that enables different configurations with multiple starting symbol occasions for the configured grants in new radio (NR) unlicensed communications. The PUSCH can be type A or as type B based on the configured grant. A number M of demodulation reference signals (DMRSs) and a number N of starting symbol occasions in a slot can be configured according to the configured grant, wherein M and N comprise an integer greater than zero, respectively.

公开(公告)号：US20220158794A1

公开(公告)日：2022-05-19

申请号：US17437809

申请日：2020-05-29

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Alexei Davydov ,  Yingyang Li ,  Guotong Wang

IPC: H04L5/00 ,  H04W52/32 ,  H04W52/28

Abstract: Apparatuses, systems, and methods for multiplexing of PUCCH for beam failure recovery and other signals. A UE may determine a transmission dropping rule and a transmission power scaling rule for a PUCCH which is dedicatedly configured for secondary BFR transmission, such as a PUCCH-BFR, when it is multiplexed with BFR multiplexed with at least one other signal at least one other signal. The PUCCH-BFR and the at least one other signal may be multiplexed in a CC or in multiple CCs. The UE may determine a transmission dropping rule, e.g., so that UE can transmit an uplink signals with higher priority and drop the other uplink signal with lower priority to avoid beam collisions. The UE may determine a transmission power scaling rule, e.g., so the UE may scale transmission power within a CC and/or across CCs. The UE may multiplex the PUCCH-BFR with the at least one other signal according to the rules.

公开(公告)号：US20200351941A1

公开(公告)日：2020-11-05

申请号：US16865197

申请日：2020-05-01

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W72/12

Abstract: Methods and apparatus are disclosed for a UE and its serving base station in 5G NR systems to signal channel scan or channel sensing to allow channel occupancy time (COT) sharing before transmissions. The COT sharing may be initiated by the base station or by the UE by asserting a CCA indication to enable channel sensing by a UE or base station, respectively. When the UE receives and decodes the asserted CCA indication during downlink transmission, the UE may perform channel sensing during a short interframe space (SIFS) between the downlink transmission and a scheduled uplink transmission. When the UE detects that the sensed RF energy across an intended transmission band is greater than an energy detect threshold, the UE may refrain from transmitting during the scheduled uplink transmission. Otherwise or when the CCA indication is de-asserted, the UE may transmit during the scheduled uplink transmission without performing channel sensing.

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：US12160729B2

公开(公告)日：2024-12-03

申请号：US17310955

申请日：2020-05-02

Applicant: APPLE INC.

Inventor： Rui Huang ,  Yingyang Li ,  Zhibin Yu ,  Qiming Li ,  Jie Cui ,  Yang Tang

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/30 ,  H04W48/16 ,  H04W16/14 ,  H04W36/24 ,  H04W36/36 ,  H04W84/04

Abstract: A method of a user equipment (UE) performing cell re-selection in New Radio (NR) unlicensed (NR-U) idle mode includes performing cell re-selection associated with a selected public land mobile network (PLMN) in New Radio (NR) unlicensed (NR-U) idle mode. Performing cell re-selection in NR-U idle mode further comprises determining a best cell associated with the selected PLMN based on one or more measurements. At least one of the one or more measurements may comprise a channel occupancy measurement. Performing cell re-selection in NR-U idle mode further comprises camping on the best cell and periodically searching for cells that are determined to be better than the best cell based on the one or more measurements.

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：US12081346B2

公开(公告)日：2024-09-03

申请号：US17429871

申请日：2020-02-11

Applicant: Apple Inc.

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

IPC: H04L27/00 ,  H04L1/1867 ,  H04L5/00 ,  H04W74/08 ,  H04W74/0816 ,  H04L1/1812

CPC classification number: H04L1/1887 ,  H04L5/0055 ,  H04L27/0006 ,  H04W74/0816 ,  H04L1/1812

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：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.