公开(公告)号：US12267880B2

公开(公告)日：2025-04-01

申请号：US18369706

申请日：2023-09-18

Applicant: Apple Inc.

Inventor： Anthony Lee ,  Seau S. Lim ,  Yongjun Kwak ,  Youn Hyoung Heo

IPC: H04W72/0453 ,  H04W72/1263 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0833 ,  H04W76/19

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive, from a gNB, configuration information related to a 2-step random access (RA) procedure between the UE and the gNB in unlicensed spectrum. The 2-step RA procedure may include: an uplink MsgA message that includes, within a random access occasion (RO), a MsgA preamble and a MsgA payload; and a downlink MsgB message that includes, within another RO, a MsgB PDCCH and a MsgB payload. The configuration information may indicate: resources allocated for the MsgA preamble; and a mapping between the resources allocated for the MsgA preamble and the MsgA payload. The UE may determine the resources allocated for the MsgA pay load based on the resources allocated for the MsgA preamble and the mapping.

公开(公告)号：US12262334B2

公开(公告)日：2025-03-25

申请号：US17267085

申请日：2019-08-09

Applicant: Apple Inc.

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

IPC: H04W56/00 ,  H04L5/00 ,  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：US12200755B2

公开(公告)日：2025-01-14

申请号：US18472545

申请日：2023-09-22

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Gang Xiong ,  Gregory V. Morozov ,  Yushu Zhang ,  Joonyoung Cho ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W74/00 ,  H04L5/00 ,  H04W74/0833

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message comprising an indicator to indicate a number of contention based physical random access channel (PRACH) preambles within a PRACH occasion per Synchronization Signal Block (SSB). The second circuitry may be operable to generate a first PRACH occasion, based on the indicator.

公开(公告)号：US12170985B2

公开(公告)日：2024-12-17

申请号：US16865011

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Gang Xiong ,  Yongjun Kwak

IPC: H04W72/0453 ,  H04L1/1607 ,  H04L5/00 ,  H04W16/14 ,  H04W72/21 ,  H04W74/0808 ,  H04W80/08

Abstract: Apparatuses, systems, and methods for providing frequency domain resource allocation schemes for use in unlicensed spectrum. A wireless device may determine a frequency domain resource allocation scheme for use for uplink communication in unlicensed spectrum. The wireless device may receive information indicating a frequency domain resource allocation for an uplink communication in unlicensed spectrum in accordance with the frequency domain resource allocation scheme. The wireless device may perform the uplink communication using the indicated frequency domain resource allocation.

公开(公告)号：US12150213B2

公开(公告)日：2024-11-19

申请号：US17830016

申请日：2022-06-01

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yushu Zhang ,  Dae Won Lee ,  Alexei Vladimirovich Davydov ,  Seunghee Han ,  Jie Zhu ,  Dmitry Belov ,  Debdeep Chatterjee ,  Andrey Chervyakov ,  Fatemeh Hamidi-Sepehr ,  Hong He ,  Toufiqul Islam ,  Jeongho Jeon ,  Alexey Vladimirovich Khoryaev ,  Lopamudra Kundu ,  Yongjun Kwak ,  Jose Armando Oviedo ,  Sergey Panteleev ,  Mikhail Shilov ,  Sergey Sosnin ,  Salvatore Talarico ,  Jan Zaleski

IPC: H04W88/06 ,  H04J13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/23 ,  H04W76/27

Abstract: A user equipment (UE) can include processing circuitry coupled to memory. To configure the UE for New Radio (NR) communications above a 52.6 GHz carrier frequency, the processing circuitry is to decode radio resource control (RRC) signaling to obtain a cyclic shift value in time domain. The cyclic shift value is associated with a demodulation reference signal (DM-RS) antenna port (AP) of a plurality of available DM-RS APs. A single carrier based waveform DM-RS sequence corresponding to the DM-RS AP is generated using a base sequence and the cyclic shift value. The single carrier based waveform DM-RS sequence is encoded with uplink data for transmission to a base station using a physical uplink shared channel (PUSCH) using a carrier above the 52.6 GHz carrier frequency.

公开(公告)号：US12137415B2

公开(公告)日：2024-11-05

申请号：US17431277

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Murali Narasimha ,  Seau S. Lim ,  Anthony Lee ,  Yongjun Kwak

IPC: H04W52/02 ,  H04W74/0808

Abstract: A user equipment (UE), or other network component can operate to generate listen-before-talk (LBT) operations in order to manage power consumption by configuring the discontinuous reception (DRX) in a dynamic manner. The UE can configure an extended active time for the DRX based on whether the LBT is successful and an acquisition channel indication from a base station, e.g., a next generation NodeB (gNB). The UE can operate aperiodic wakeup occasions with or independently of periodic DRX on-durations to better manage power while monitoring a channel for unlicensed carrier communications.

公开(公告)号：US12114325B2

公开(公告)日：2024-10-08

申请号：US17606570

申请日：2020-05-04

Applicant: APPLE INC.

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

IPC: H04W72/23 ,  H04W16/14 ,  H04W74/0808

CPC classification number: H04W72/23 ,  H04W16/14 ,  H04W74/0808

Abstract: Techniques discussed herein can facilitate determine of Uplink (UL) resources for New Radio (NR) operation in unlicensed spectrum (NR-U). One example embodiment is an apparatus employable by a UE comprising one or more processors configured to: process at least one bitmap via Radio Resource Control (RRC) signaling, wherein each bitmap of the at least one bitmap comprises X bits, wherein X is an integer greater than one; and determine, based at least on the at least one bitmap, for each time resource of at least one Configured Grant (CG) period, whether that time resource is configured for Uplink (UL) transmission via an unlicensed carrier, wherein each CG period of the at least one CG period comprises P time resources, wherein P is an integer greater than one.

公开(公告)号：US12089253B2

公开(公告)日：2024-09-10

申请号：US17430847

申请日：2020-02-16

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04W72/0446 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0866

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for a shared channel occupancy time (COT) procedure in a wireless channel of unlicensed spectrum. The shared COT can be utilized among one or more user equipment (UE) and a 5G Node B (gNB). A UE contends for access to the channel to acquire the COT, and transmits in the uplink (UL) according to the UEs time-domain configuration. When the UL transmission does not utilize the entire COT, the UE can signal to the gNB that the COT can be shared. In particular, the UE transmits an indication of a COT boundary that the gNB can use to determine when to transmit DL data in the shared COT. The COT can also be shared between two or more UEs in addition to the gNB.

公开(公告)号：US20240172147A1

公开(公告)日：2024-05-23

申请号：US18534181

申请日：2023-12-08

Applicant: APPLE INC.

Inventor： Yang Tang ,  Dae Won Lee ,  Prerana Rane ,  Bishwarup Mondal ,  Jiwoo Kim ,  Yongjun Kwak ,  Seunghee Han

IPC: H04W56/00 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04L27/26025 ,  H04L27/2607

Abstract: Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel, Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS), NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and/or entries of a second plurality of data objects calculated for NR channels that use a second SCS.

公开(公告)号：US20240163886A1

公开(公告)日：2024-05-16

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

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.