公开(公告)号：US20220070744A1

公开(公告)日：2022-03-03

申请号：US17498443

申请日：2021-10-11

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：US20210385709A1

公开(公告)日：2021-12-09

申请号：US17288394

申请日：2019-10-24

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Yi Guo ,  Sudeep Palat

IPC: H04W36/02 ,  H04L29/06 ,  H04W36/00 ,  H04W12/10 ,  H04W12/037

Abstract: Systems, methods, and devices are provided to: perform packet data convergence protocol (PDCP) deciphering of the packets to store deciphered packets in a common buffer; perform PDCP reordering of the deciphered packets in the common buffer to generated a stream or reordered packets; perform robust header compression (ROHC) decompression on the stream of reordered packets; and determine, based on a packet indication, to reset the ROHC decompression, wherein the packet indication comprises a single bit in a PDCP header set to indicate a start of ROHC reset based on a path switch during a handover from a source cell to a target cell.

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：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：US11089651B2

公开(公告)日：2021-08-10

申请号：US16376333

申请日：2019-04-05

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Dae Won Lee ,  Gregory V. Morozov ,  Seunghee Han ,  Hong He ,  Candy Yiu ,  Kyeongin Jeong

IPC: H04W88/02 ,  H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W56/00 ,  H04W76/27 ,  H04L1/18 ,  H04W80/02 ,  H04W52/00

Abstract: An apparatus is configured for a user equipment (UE) device. The apparatus comprises baseband circuitry and/or application circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to generate a physical random access channel (PRACH) within a slot at a medium access control (MAC) layer, generate a scheduling request (SR) within the slot at the MAC layer, determine a PRACH prioritization and an SR prioritization at a physical layer according to a prioritization rule; and provide the PRACH and the SR to the RF interface for transmission according to the prioritization rule.

公开(公告)号：US11082901B2

公开(公告)日：2021-08-03

申请号：US16339500

申请日：2017-11-01

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yang Tang ,  Rui Huang

IPC: H04W36/00 ,  H04W76/27 ,  H04W24/10 ,  H04W36/30

Abstract: NCSGs may be used by a cellular network to, for example, enhance the signal measurement processes by which a UE performs inter-frequency measurements. In a first embodiment described herein, a UE may signal to the network, on a per-UE basis, the ability to support NCGS interruptions. In a first embodiment described herein, a UE may signal to the network, on a per-component carrier basis of the UE, the ability to support NCGS interruptions.

公开(公告)号：US11070999B2

公开(公告)日：2021-07-20

申请号：US16499747

申请日：2018-05-01

Applicant: APPLE INC.

Inventor： Jie Cui ,  Yuan Zhu ,  Candy Yiu ,  Rui Huang ,  Yang Tang ,  Shuang Tian ,  Dae Won Lee

IPC: H04W24/10 ,  H04L1/16 ,  H04W56/00 ,  H04W88/06

Abstract: Technology for a user equipment (UE) operable to decode measurement gap patterns received from a Next Generation NodeB (gNB) is disclosed. The UE can decode a per-frequency range (per-FR) measurement gap pattern received from the gNB in a New Radio (NR) system. The per-FR measurement gap pattern can indicate a measurement gap partem for monitoring selected frequency layers within a frequency range at the UE. The UE can process one or more measurements for the selected frequency layers within the frequency range. The one or more measurements for the selected frequency layers can be measured in accordance with the per-FR measurement gap pattern. The UE can encode the one or more measurements for the selected frequency layers for reporting to the gNB.

公开(公告)号：US11044626B2

公开(公告)日：2021-06-22

申请号：US16487688

申请日：2018-03-12

Applicant: APPLE INC.

Inventor： Candy Yiu ,  Jie Cui ,  Yang Tang

IPC: H04W24/10 ,  H04L5/00 ,  H04W36/00

Abstract: Systems, methods, and apparatuses may configure a measurement gap per frequency group and per cell. Measurement time and frequency resources may be associated with a carrier frequency, a cell, or both. Thus, a user equipment (UE) may determine the measurement configuration based on the carrier frequency, cell, or both. The number of synchronization sequences (SS) blocks in an SS burst may be based on the frequency band of the carrier frequency.

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：US10979944B2

公开(公告)日：2021-04-13

申请号：US16348380

申请日：2017-11-10

Applicant: Apple Inc.

Inventor： Candy Yiu

IPC: H04W36/00 ,  H04W36/38 ,  H04W88/08 ,  H04W36/08 ,  H04W36/02

Abstract: An apparatus of a base station (BS) of a radio access network (RAN) comprises memory and processing circuitry. The processing circuitry includes a central unit (CU) portion and a distributed unit (DU) portion that implement a BS multi-layer protocol stack divided between the CU portion and the DU portion. The processing circuitry initiates a handover to change a serving cell of user equipment (UE). The handover includes a change in a portion of logical layers of the BS multi-layer protocol stack, and the processing circuitry encodes an information element for transmission to the UE indicating logical layers of a UE multi-layer protocol stack implemented in the UE to be reset by the UE in association with the handover.