公开(公告)号：US11265091B2

公开(公告)日：2022-03-01

申请号：US16734564

申请日：2020-01-06

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Debdeep Chatterjee ,  Gregory Morozov ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W72/04 ,  H04B7/08 ,  H04B17/382 ,  H04B7/06 ,  H04B17/318 ,  H04W24/08 ,  H04L5/00 ,  H04L25/02 ,  H04B17/24 ,  H04W24/10

Abstract: Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for Reference Signal Received Power (RSRP) measurement and allocation of Downlink (DL) transmission resources. A user equipment (UE) may detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, and determine a subcarrier spacing (SCS) thereof. Mapping the first SS/PBCH block to OFDM symbols may be dependent on the SCS and a first SS/PBCH block index of the first SS/PBCH block. The UE may determine, based on the first SS/PBCH block and the SCS, a number of symbols of the slot or the slot pair for a CORESET for reception of a DL control channel associated with Remaining Minimum System Information (RMSI). The UE may decode the DL control channel in the CORESET. The DL control channel may be configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.

公开(公告)号：US11147104B2

公开(公告)日：2021-10-12

申请号：US16409530

申请日：2019-05-10

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Seunghee Han ,  Gregory Morozov ,  Ansab Ali ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W74/08 ,  H04W72/04 ,  H04J11/00 ,  H04B7/08 ,  H04B7/0413 ,  H04B17/327 ,  H04L5/00

Abstract: Systems and methods of selecting a PRACH resource opportunity are described. One of multiple Synchronization Signal Blocks (SSBs) is received. Each SSB has PSSs, SSSs and a PBCH that contain system information. A RACH occasion (RO) is selected from among multiple ROs associated with the SSB. A PRACH is transmitted on resources of the RO. The ROs are configured in a TDM and/or FDM manner. The RO is selected randomly or, if TDM is used, an earliest of the ROs from a UE-initiated RACH transmission in a previous period. A preamble of the RO is selected randomly with equal probability.

公开(公告)号：US11147051B2

公开(公告)日：2021-10-12

申请号：US16464814

申请日：2018-02-05

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Gang Xiong ,  Hwan-Joon Kwon ,  Hong He ,  Seung Hee Han ,  Debdeep Chatterjee

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02 ,  H04L29/08

Abstract: Techniques discussed herein can facilitate transmission and reception of group common PDCCH (Physical Downlink Control Channel) for NR (New Radio). One example embodiment employable by a UE (User Equipment) comprises processing circuitry configured to: process higher layer signaling that configures a set of combinations for slot formats for the UE; detect, via blind decoding on at least a portion of a control resource set, a DCI (Downlink Control Information) message that indicates a combination for slot formats of the set of combinations for slot formats via a SFI (slot format indicator); and determine a slot format for one or more slots based on the indicated combination for slot formats, wherein the slot format indicates, for each symbol of the one or more slots, whether that symbol is DL (Downlink), UL (Uplink), or a flexible symbol in the slot format.

公开(公告)号：US11051202B2

公开(公告)日：2021-06-29

申请号：US16408313

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Seung Hee Han ,  Debdeep Chatterjee ,  Hong He ,  Gregory V. Morozov ,  Ajit Nimbalker ,  Fatemeh Hamidi-Sepehr ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W28/02

Abstract: Technology for a user equipment (UE) operable to determine a transport block size (TBS) is disclosed. The UE can determine a number of assigned resource elements (REs) in one or more symbols for a transport block. The UE can determine a reference number of REs per physical resource block (PRB) in the transport block based on a reference number of REs for the transport block corresponding to each PRB and an assigned number of PRBs for the transport block. The UE can determine a TBS for the transport block based at least on the reference number of REs per PRB in the transport block. The UE can encode information in a selected transport block for transmission via a physical uplink shared channel (PUSCH) to a Next Generation NodeB (gNB) in accordance with the TBS determined at the UE.

公开(公告)号：US20210006443A1

公开(公告)日：2021-01-07

申请号：US16976624

申请日：2018-07-26

Applicant: Apple Inc.

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

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

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：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.