公开(公告)号：US20210367741A1

公开(公告)日：2021-11-25

申请号：US16976873

申请日：2018-08-10

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Jie Cui ,  Yang Tang ,  Youn Hyoung Heo

IPC: H04L5/00 ,  H04W24/10

Abstract: Logic may receive an initial communication from a user device, the initial communication comprising capabilities. Logic may determine, based on an indication of a capability to support new radio frequency layers from the capabilities for the user device, a measurement gap configuration for the new radio frequency layers and a measurement gap configuration for a channel state information reference signal. Logic may send a frame with a preamble to a physical layer comprising the measurement gap configuration. Logic may send an initial communication to a physical layer, wherein the initial communication comprises capabilities for a user device. Logic may decode downlink data with a measurement gap configuration. And logic may parse the measurement gap configuration to determine at least one measurement gap identification and at least one offset for the new radio frequency layers and a channel state information reference signal.

公开(公告)号：US11184930B2

公开(公告)日：2021-11-23

申请号：US16316842

申请日：2017-08-01

Applicant: Apple Inc.

Inventor： Seau Lim ,  Marta Martinez Tarradell ,  Debdeep Chatterjee ,  Youn Hyoung Heo

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00

Abstract: A Narrowband-Internet-of-Things (NB-IoT) device may select between multiple carrier resources (of an anchor carrier and/or non-anchor carriers) to perform a Narrowband Physical Random Access Channel (NPRACH) procedure. The NB-IoT device may determine, based on a reference signal from an enhanced NodeB (eNB), a coverage level for the NB-IoT device and receive carrier configuration information, from the eNB, that indicates the carriers (e.g., an anchor carrier and one or more non-anchor carriers) that are available for NPRACH procedure. The NB-IoT device may select a carrier resource from among the carriers based on factors, such as the coverage level of the NB-IoT device and the Reference Signals Received Power (RSRP) thresholds and Repetition levels of the carrier resources. The NB-IoT device may use the selected carrier resource to initiate the NPRACH procedure.

公开(公告)号：US11147000B2

公开(公告)日：2021-10-12

申请号：US16473235

申请日：2017-12-22

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Kyeongin Jeong ,  Sudeep K. Palat ,  Richard C. Burbidge ,  Youn Hyoung Heo

IPC: H04W36/00 ,  H04L5/00

Abstract: Embodiments of a generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may receive, from the UE, a first measurement report that indicates a first signal quality measurement based on new radio synchronization signals (NR-SS). The gNB may determine, based on reception of the first measurement report, a transmission direction for transmission of channel state information reference signals (CSI-RS) for a second RRM measurement at the UE based on the CSI-RS. The gNB may receive, from the UE, a second measurement report that indicates a second signal quality measurement based on the CSI-RS. The gNB may determine, based at least partly on the first and second signal quality measurements, whether to initiate a handover of the UE from a serving cell to a neighbor cell.

公开(公告)号：US11122647B2

公开(公告)日：2021-09-14

申请号：US16519699

申请日：2019-07-23

Applicant: APPLE INC.

Inventor： Youn Hyoung Heo ,  Yujian Zhang

IPC: H04W76/28 ,  H04W76/15 ,  H04W52/54 ,  H04B7/26 ,  H04W52/02 ,  H04W72/04 ,  H04L1/18 ,  H04W28/02 ,  H04W24/08 ,  H04W72/12 ,  H04W28/06 ,  H04W28/18 ,  H04W52/14 ,  H04W52/36 ,  H04L5/00 ,  H04W92/20 ,  H04W36/00 ,  H04W88/02 ,  H04W88/08

Abstract: Embodiments of user equipment (UE) and methods for enhanced discontinuous reception (DRX) operations for inter eNB carrier aggregation (CA) in an LTE network are generally described herein. In some embodiments, a UE is configured to be served by multiple serving cells. The first set of the serving cells may be associated with a first eNB and a second set of serving cells may be associated with a second eNB. In these embodiments, DRX operations may be performed independently in multiple serving cells belonging to the different eNBs. Other embodiments for enhanced DRX operations are also described.

公开(公告)号：US20210160747A1

公开(公告)日：2021-05-27

申请号：US17164561

申请日：2021-02-01

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Rui Huang ,  Yang Tang ,  Youn Hyoung Heo ,  Ansab Ali ,  Sudeep K. Palat ,  Dae Won Lee ,  Jie Cui

IPC: H04W36/00 ,  H04J11/00 ,  H04W16/28 ,  H04W36/06 ,  H04W36/08 ,  H04W36/30

Abstract: Beamforming measurement techniques based on PSS/SSS are disclosed. An apparatus of a user equipment (UE) can include processing circuitry configured to decode a configuration message from a source serving cell, the configuration message indicating signal selection criteria for cell measurement reporting. A synchronization signal (SS) burst set associated with one or more transmission/reception points (TRPs) within a neighboring cell is decoded, the SS burst set including a plurality of SS blocks. A cell bcamforming measurement signal associated with the neighboring cell is generated, based on signal measurements of the SS blocks and the signal selection criteria. A radio resource management (RRM) measurement report message is encoded for transmission to the serving cell, the measurement report message including the cell beamforming measurement signal. A handover command message for initiating a handover to the neighboring cell is decoded, the handover command based on the cell beamforming measurement signal.

公开(公告)号：US10904933B2

公开(公告)日：2021-01-26

申请号：US15566650

申请日：2015-12-09

Applicant: Apple Inc.

Inventor： Sangeetha Bangolae ,  Youn Hyoung Heo ,  Richard Burbidge

IPC: H04W76/14 ,  H04W4/02 ,  H04W88/04 ,  H04W76/27 ,  H04W8/00 ,  H04W72/08

Abstract: Technology for a relay user equipment (UE) operable to act as a relay between a remote UE and an eNodeB is disclosed. The relay UE can receive, from the eNodeB, a relay configuration message that includes one or more relay configuration parameters. The relay UE can identify relay UE information associated with one or more relay parameters of the relay UE. The relay UE can determine to act as the relay for the remote UE based on the one or more relay configuration parameters and the relay UE information. The relay UE can transmit a discovery message to the remote UE in order to establish a direct connection between the relay UE and the remote UE, wherein the relay UE is configured to relay data from the eNodeB to the remote UE via the direct convection between the relay UE and the remote UE.

公开(公告)号：US20210014836A1

公开(公告)日：2021-01-14

申请号：US16826421

申请日：2020-03-23

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Jeongho Jeon ,  Youn Hyoung Heo ,  Candy Yiu ,  Bharat Shrestha

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: 5G methods and architectures to determine active SCells and their bandwidth parts (BWP) used in carrier aggregation (CA) are disclosed in which activating a BWP for an active SCell is performed initially according to a default value provided in initial radio resource control (RRC) messaging. After initialization, SCells and the SCell BWPs used by the user equipment (UE) are activated by RRC messaging, downlink control information (DCI) or dedicated medium access control (MAC) control elements (MAC CEs) with the initial BWP used for an activated SCell being a default value provided during initialization.