公开(公告)号：US20220201563A1

公开(公告)日：2022-06-23

申请号：US17441972

申请日：2020-04-03

Applicant: Apple Inc.

Inventor： Qiming LI ,  Jie Cui ,  Yang Tang ,  Hua LI ,  Rui Huang

IPC: H04W36/00 ,  H04W36/18 ,  H04W36/08

Abstract: Methods, systems, apparatus, and computer programs, for implementing dual-connectivity handover. In one aspect, a method includes determining, by user equipment (UE), whether the UE is capable of simultaneous communication with a source cell and a target cell, generating, by the UE, a handover indicator, the handover indicator having one or more fields structuring data that indicates that the UE is capable of simultaneous communication with the source cell and the target cell, transmitting, by the UE, the handover indicator to an access node, and receiving, by the UE and from the access node based on receipt by the access node of the handover indicator, a command to perform handover.

公开(公告)号：US11240692B2

公开(公告)日：2022-02-01

申请号：US16604982

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Rui Huang ,  Yuan Zhu ,  Shuang Tian

IPC: H04B7/204 ,  H04W24/10 ,  H04L27/26 ,  H04W28/06 ,  H04W36/00

Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.

公开(公告)号：US20210377988A1

公开(公告)日：2021-12-02

申请号：US17286606

申请日：2018-11-05

Applicant: Apple Inc.

Inventor： Yuhan Zhou ,  Rui Huang ,  Yang Tang ,  Hua Li ,  Jie Cui ,  Qiming Li

IPC: H04W72/12

Abstract: A device of a New Radio (NR) User Equipment (UE), a system, a method and a machine-readable medium. The device includes a radio frequency (RF) interface and processing circuitry coupled to the RF interface. The processing circuitry is to: cause communication with a NR evolved Node B (gNodeB) on a first bandwidth part (BWP); determine a BWP switching delay for an uplink (UL) communication from the UE to the gNodeB, the BWP switching delay based on a timing advance (TA) for the UL communication; encode the UL communication for transmission to the gNodeB; switch from the first BWP to a second BWP at an expiration of the BWP switching delay; and cause transmission of the UL communication on the second BWP.

公开(公告)号：US10999842B2

公开(公告)日：2021-05-04

申请号：US16747087

申请日：2020-01-20

Applicant: Apple Inc.

Inventor： Rui Huang ,  Yang Tang

IPC: H04W76/28 ,  H04W76/27 ,  H04W52/28 ,  H04W84/04 ,  H04W76/15 ,  H04W88/06 ,  H04W72/04 ,  H04W24/10 ,  H04W56/00 ,  H04L5/00

Abstract: Embodiments of a user equipment (UE) for reporting of timing offset for dual connectivity enhancement are disclosed herein. The UE can include transceiver circuitry to connect to a master cell group via a master evolved node B (eNB) and a secondary cell group via a secondary eNB. Additionally, the UE can receive a first reference signal from the master eNB and a second reference signal from a secondary eNB. Moreover, the UE can include processing circuitry to calculate a system frame number (SFN) and subframe timing difference (SSTD) based on the first reference signal and the second reference signal. Moreover, the UE can generate a measurement report having a synchronization indicator for dual connectivity based on the calculated SSTD. Subsequently, the UE can send the generated measurement report to the master eNB.

公开(公告)号：US20210006995A1

公开(公告)日：2021-01-07

申请号：US16604982

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Rui Huang ,  Yuan Zhu ,  Shuang Tian

IPC: H04W24/10 ,  H04L27/26

Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.