公开(公告)号：US10993283B2

公开(公告)日：2021-04-27

申请号：US16369187

申请日：2019-03-29

Applicant: Apple Inc.

Inventor： Jeongho Jeon ,  Seau Lim ,  Yongjun Kwak ,  Anthony Lee ,  Hwan-Joon Kwon ,  Joonyoung Cho ,  Huaning Niu

IPC: H04W74/08 ,  H04W88/02 ,  H04W72/14 ,  H04W88/04 ,  H04W88/06 ,  H04W16/14 ,  H04L5/00 ,  H04W74/00

Abstract: A network device (e.g., a user equipment (UE), or a new radio NB (gNB)) can process or generate a configuration of a physical random access channel (PRACH) over physical resource blocks (PRBs) that are interlaced in an unlicensed band in an NR unlicensed (NR-U) communication. The PRBs in the PRACH can be based on an occupied channel bandwidth (OCB) of the unlicensed band in the NR-U communication. A random access channel transmission in the PRACH can then be generated by interlacing the PRBs defining the PRACH.

公开(公告)号：US20200229270A1

公开(公告)日：2020-07-16

申请号：US16638333

申请日：2018-08-09

Applicant: Apple Inc

Inventor： Debdeep Chatterjee ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Alexei Davydov ,  Hwan-Joon Kwon ,  Dae Won Lee

IPC: H04W88/06 ,  H04L5/00 ,  H04W72/04 ,  H04W80/08 ,  H04W24/08

Abstract: A user equipment (UE) may receive information, via radio resource control (RRC) signaling, regarding a search space of a physical downlink control channel (PDCCH) for obtaining downlink control information (DCI) from a radio access network (RAN) node. Based on a slot format (SF) index in the DCI, the UE may determine a slot format for communicating with the RAN node, and communicate with the RAN node in accordance with the slot format. Additionally, a UE may communicate UE capability information, which may include a maximum number of blind decode attempts (BDAs), to the RAN node. The UE may determine shortened channel control elements (sCCEs) to be used, by the RAN node, to transmit shortened downlink control information (sDCI) via a shortened physical downlink control channel (sPDCCH), obtain sDCI by monitoring the sPDCCH in accordance with the determined sCCEs, and communicate with the RAN node in accordance with the sDCI.

公开(公告)号：US12250693B2

公开(公告)日：2025-03-11

申请号：US17438261

申请日：2020-03-20

Applicant: APPLE INC.

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

IPC: H04W72/23 ,  H04L1/1607 ,  H04L27/26 ,  H04W72/0446

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for time-domain resource allocation for configured grant transmissions in New Radio (NR) systems. For example, some embodiments are directed to an electronic device including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to generate a radio resource control (RRC) signal including a bitmap for configuring time-domain resources for configured grant (CG) operation. The processor circuitry can be further configured to transmit, using the radio front end circuitry, the RRC signal to a user equipment (UE) to configure the time-domain resources. The bitmap comprises a plurality of resource units and wherein each resource unit in the plurality of resource units corresponds to a symbol, a slot, a subframe, or a radio frame.

公开(公告)号：US12245190B2

公开(公告)日：2025-03-04

申请号：US17275531

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Anthony Lee ,  Seau S. Lim ,  Yongjun Kwak ,  Youn Hyoung Heo ,  Lopamudra Kundu ,  Dae Won Lee

IPC: H04W68/02 ,  H04W72/04 ,  H04W72/12

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：US20250055624A1

公开(公告)日：2025-02-13

申请号：US18928589

申请日：2024-10-28

Applicant: Apple Inc.

Inventor： Lopamudra KUNDU ,  Bisharup 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：US12200759B2

公开(公告)日：2025-01-14

申请号：US17442134

申请日：2020-03-27

Applicant: Apple Inc.

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

IPC: H04W74/0808 ,  H04W16/14

Abstract: Systems, methods, and apparatuses disclosed herein can operate on an unlicensed spectrum. These systems, methods, and apparatuses can perform a first listen-before-talk (LBT) operation of a LBT protocol in a first slot from among multiple slots to determine whether the unlicensed spectrum is unoccupied. Thereafter, these systems, methods, and apparatuses can transmit an uplink (UL) transmission in other slots from among the plurality of slots in response to the unlicensed spectrum being unoccupied. Otherwise, these systems, methods, and apparatuses can perform a second LBT operation in a second slot from among the plurality of slots in response to the unlicensed spectrum being occupied.

公开(公告)号：US12185262B2

公开(公告)日：2024-12-31

申请号：US17593080

申请日：2020-05-13

Applicant: APPLE INC.

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

IPC: H04W56/00 ,  H04L27/26

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：US12120746B2

公开(公告)日：2024-10-15

申请号：US17441122

申请日：2020-06-19

Applicant: Apple Inc.

Inventor： Carlos H. Aldana ,  Salvatore Talarico ,  Yongjun Kwak ,  Lopamudra Kundu

IPC: H04W74/0833 ,  H04W72/23 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/23 ,  H04W74/004

Abstract: A user equipment (UE), or other network component can operate to configure channel occupancy time (COT) sharing in random access procedures involving the unlicensed spectrum. At least some of the messages for the procedures can share a COT by configuring one or more gaps or listen-before-talk (LBT) procedures based on the gap or whether the COT sharing is UE or gNB initiated. Some configurations can depend on a location in the random access procedure that COT sharing is acquired.

公开(公告)号：US12058737B2

公开(公告)日：2024-08-06

申请号：US17420090

申请日：2020-02-16

Applicant: Apple Inc.

Inventor： Lopamudra Kundu ,  Bishwarup Mondal ,  Yongjun Kwak ,  Yingyang Li

IPC: H04W74/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L27/26 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04L1/0071 ,  H04L1/1614 ,  H04L27/26025

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for an access point (AP) for a wireless communication system operating in a licensed and an unlicensed spectrum. The AP includes processor circuitry configured to determine a plurality of interleaved interlaces based on a bandwidth of a physical uplink channel and a subcarrier spacing (SCS). The processor circuitry is configured to identify a plurality of resource blocks (RBs) corresponding to a first interleaved interlace of the plurality of interleaved interlaces, which are based on a number of subcarrier per RB. The processor circuitry is configured to allocate the plurality of RBs corresponding to the first interleaved interlace among one or more user equipments (UEs), and generate an indication of the allocated plurality of RBs, the first interleaved interlace, and the one or more UEs to transmit to the one or more UEs via radio front end circuitry coupled to the processor circuitry.

公开(公告)号：US12047218B2

公开(公告)日：2024-07-23

申请号：US17435730

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Yongjun Kwak ,  Dae Won Lee ,  Avik Sengupta

IPC: H04L27/26 ,  H04L1/00 ,  H04W56/00

CPC classification number: H04L27/2675 ,  H04L1/0013 ,  H04W56/0015

Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).