公开(公告)号：US11290230B2

公开(公告)日：2022-03-29

申请号：US16625149

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Alexei Vladimirovich Davydov ,  Seunghee Han ,  Jeongho Jeon ,  Sameer Pawar ,  Avik Sengupta ,  Guotong Wang ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/18

Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical downlink control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.

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：US11191064B2

公开(公告)日：2021-11-30

申请号：US15501152

申请日：2015-06-04

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Seunghee Han ,  Debdeep Chatterjee ,  Jong-Kae Fwu

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04W48/12 ,  H04W74/08 ,  H04W48/16

Abstract: Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved Node B (eNB). The UE and eNB may perform enhanced physical downlink control channel (EPDCCH)-less operation for scheduling of one or more common control messages, such as one or more system information blocks (SIBs), a random access response (RAR) message, or a paging message. Additionally, or alternatively, an eNB may configure a subset of aggregation levels for the search space of the UE to use for receiving a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH). Other embodiments may be described and/or claimed.

公开(公告)号：US20210344431A1

公开(公告)日：2021-11-04

申请号：US17234665

申请日：2021-04-19

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Wook Bong Lee ,  Dae Won Lee ,  Seunghee Han ,  Alexei Davydov ,  Guotong Wang ,  Gregory Morozov

IPC: H04B17/327 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/08

Abstract: Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.

公开(公告)号：US11159928B2

公开(公告)日：2021-10-26

申请号：US16316771

申请日：2017-08-11

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Hyung-Nam Choi ,  Marta Martinez Tarradell ,  Seau Lim ,  Seunghee Han

IPC: H04W4/70 ,  H04L1/00 ,  H04L5/00 ,  H04W4/80 ,  H04W76/11 ,  H04W24/08 ,  H04W72/04

Abstract: Support of Single-Cell Point-To-Multipoint (SC-PTM) for narrowband (UEs) and low complexity (BL) UEs can is implemented at both the physical layers and the higher layers. For example, in one implementation, a UE may transmit, to a Single-Cell Point-To-Multipoint (SC-PTM) base station, multicast service preference information, including at least one of a Coverage Enhancement (CE) mode or a maximum Transport Block Size (TBS) of the UE. The UE may also monitor a common search space (CSS) of a MTC Physical Downlink Control Channel (MPDCCH) or Narrowband Physical Data Control Channel (NPDCCH) for the scheduling of a Physical Downlink Shared Channel (PDSCH) or a Narrowband Physical Downlink Shared Channel (NPDSCH), respectively, to obtain downlink control information (DCI) that includes configuration information relating to a Single-Cell Multicast Control Channel (SC-MCCH).

公开(公告)号：US20210328744A1

公开(公告)日：2021-10-21

申请号：US17365685

申请日：2021-07-01

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Yuan Zhu ,  Yushu Zhang ,  Gang Xiong ,  Seunghee Han

IPC: H04L5/00 ,  H04L1/00 ,  H04W28/02 ,  H04W72/04 ,  H04W72/12

Abstract: Embodiments of a User Equipment (UE), an Evolved Node-B (eNB), and methods for communication of uplink messages are generally described herein. The UE may receive, from an eNB, one or more downlink control messages that may indicate an allocation of PUCCH channel resources. The UE may transmit an uplink control message in at least a portion of the allocated PUCCH channel resources. When the PUCCH channel resources are allocated according to an edge configuration, the PUCCH channel resources may be restricted to a lower edge portion and an upper edge portion of the network channel resources. When the PUCCH channel resources are allocated according to a distributed configuration, the PUCCH channel resources may include one or more middle portions of the network channel resources. The middle portions may be exclusive to the lower edge and upper edge portions.

公开(公告)号：US11153863B2

公开(公告)日：2021-10-19

申请号：US16478456

申请日：2018-02-14

Applicant: Apple Inc.

Inventor： Honglei Miao ,  Wook Bong Lee ,  Yushu Zhang ,  Michael Faerber ,  Seunghee Han

IPC: H04W72/04 ,  H04B7/0452 ,  H04B7/06 ,  H04L5/00

Abstract: Embodiments of the present disclosure describe methods and apparatuses for physical downlink control channel (PD-CCH) demodulation reference signal (DMRS) transmission and reception.

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：US11146375B2

公开(公告)日：2021-10-12

申请号：US15751451

申请日：2015-12-24

Applicant: APPLE INC.

Inventor： Hong He ,  Alexei Davydov ,  Seunghee Han ,  Gang Xiong ,  Hwan-Joon Kwon

IPC: H04L5/00 ,  H04L1/18 ,  H04W84/04

Abstract: HARQ feedback configuration techniques for broadband wireless communication networks are described. In one embodiment, for example, an apparatus may comprise a memory and logic for user equipment (UE), at least a portion of the logic implemented in circuitry coupled to the memory, the logic to identify a hybrid automatic repeat request (HARQ) bundling window associated with a received downlink (DL) scheduling command, identify one or more HARQ feedback configuration parameters based on HARQ feedback configuration information comprised in the DL scheduling command, the one or more identified HARQ feedback configuration parameters to include a physical uplink control channel (PUCCH) format for use in transmission of HARQ feedback for the HARQ feedback bundling window, the logic to generate the HARQ feedback for transmission to an evolved node B (eNB) according to the PUCCH format. Other embodiments are described and claimed.

公开(公告)号：US10959212B2

公开(公告)日：2021-03-23

申请号：US15747270

申请日：2015-12-23

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Jong-Kae Fwu ,  Ralf Bendlin ,  Seunghee Han

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W76/28

Abstract: Methods and apparatuses for communicating in a cellular communications network, including provision of a user equipment comprising processing circuitry to: receive from a first cell a control signal comprising a physical Time Division Duplex Uplink-Downlink configuration indicator channel (PTCICH); decode from the PTCICH a Time Division Duplex Uplink-Downlink (TDD UL-DL) configuration; and communicate with the first cell having applied the TDD UL-DL configuration in respect of subframes associated with the first cell, wherein: the PTCICH spans less than or equal to 32 Resource Elements. Also user equipment comprising processing circuitry to: receive a control signal from a first cell; decode the control signal received from the first cell thereby to determine a second cell TDD UL-DL configuration; and communicate with the second cell having applied the second cell TDD UL-DL configuration in respect of subframes associated with the second cell.