公开(公告)号：US20230199678A1

公开(公告)日：2023-06-22

申请号：US17553492

申请日：2021-12-16

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Qiming LI ,  Manasa Raghavan ,  Xiang Chen ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Chunxuan Ye ,  Seyed Ali Akbar Fakoorian

IPC: H04W56/00 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04W56/001 ,  H04W72/044 ,  H04W72/042 ,  H04W24/10 ,  H04W72/048

Abstract: A method performed by a user equipment (UE) for enhanced radio resource management (RRM) includes communicating, to an access node, a capability of the UE to support bandwidth part (BWP) without restriction. The UE determines that a synchronization signal block (SSB) is outside a downlink (DL) BWP configured for the UE. Based on determining that the SSB is outside the DL BWP configured for the UE, at least one radio frequency (RF) communication parameter of the UE is adjusted to adjust an operating bandwidth of the UE, and the SSB is received using the adjusted operating bandwidth.

公开(公告)号：US20220201565A1

公开(公告)日：2022-06-23

申请号：US17441790

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Qiming LI ,  Yi Guo ,  Jie CUI ,  Yang TANG ,  Hua LI

IPC: H04W36/00 ,  H04L5/00 ,  H04W76/10 ,  H04W24/10 ,  H04W36/30

Abstract: This disclosure describes methods, systems, and devices for handover of a user equipment (UE) from a source node of a radio access network (RAN) to a target node of the RAN. In one example, a method involves receiving, by the UE and from the source node, a RACH-498 handover message comprising: (i) an uplink grant for establishing a connection with the target node, and (ii) an identifier of a reference signal associated with a beam of the target node. The method also involves performing, by the UE, a handover based on the RACH-less handover message.

公开(公告)号：US20220191812A1

公开(公告)日：2022-06-16

申请号：US17436474

申请日：2020-03-06

Applicant: Apple Inc.

Inventor： Qiming LI ,  Jie CUI ,  Yang Tang ,  Yuhan ZHOU ,  Shuang TIAN

IPC: H04W56/00 ,  H04W4/02

Abstract: A method for enhanced autonomous uplink timing adjustment includes determining that a user equipment (UE) is traveling above a predetermined velocity. In response to the determination that the UE is traveling above the predetermined velocity, a maximum aggregate adjustment rate to an uplink timing for the UE and a maximum amount of a magnitude of a timing change to the uplink timing for the UE are determined. The uplink timing for the UE is adjusted based on the maximum aggregate adjustment rate and the maximum amount of the magnitude of the timing change.

公开(公告)号：US20220174569A1

公开(公告)日：2022-06-02

申请号：US17593674

申请日：2020-04-30

Applicant: Apple Inc.

Inventor： Jie CUI ,  Zhibin YU ,  Yang TANG ,  Qiming LI ,  Qing XU

IPC: H04W36/18 ,  H04W36/08 ,  H04B7/06

Abstract: Exemplary embodiments include methods performed by a user equipment (UE). The methods include transmitting two transmission (Tx) streams simultaneously, wherein the two Tx streams are transmitted by two distinct Tx polarization circuitries within a same UE antenna panel circuitry as two Tx polarizations. The methods also include identifying a first signal, identifying a second signal, transmitting the first signal in a first direction using a first polarization of an antenna panel and transmitting the second signal in a second direction using a second polarization of the antenna panel.

公开(公告)号：US20220173786A1

公开(公告)日：2022-06-02

申请号：US17593677

申请日：2020-06-26

Applicant: Apple Inc.

Inventor： Jie CUI ,  Zhibin YU ,  Yang TANG ,  Manasa RAGHAVAN ,  Qiming LI

IPC: H04B7/06 ,  H04W36/06 ,  H04B7/08 ,  H04L5/00 ,  H04W36/08 ,  H04W56/00

Abstract: The exemplary embodiments describe devices, systems and methods for adaptive uplink (UL) timing adjustment for beam switching. A user equipment (UE) may perform a beam switch from a first beam to a second beam, determine a timing offset associated with the second beam and apply an uplink (UL) timing adjustment based on the timing offset associated with the second beam. In some embodiments, the timing offset may be determined based on information received after the beam switch. In other embodiments, the timing offset may be determined based on information receive prior to the beam switch.

公开(公告)号：US20220141684A1

公开(公告)日：2022-05-05

申请号：US17432823

申请日：2020-02-24

Applicant: Apple Inc.

Inventor： Qiming LI ,  Jie CUI ,  Yang TANG ,  Hua LI ,  Andrey CHERVYAKOV

IPC: H04W24/06 ,  H04B7/26 ,  H04B17/309 ,  H04W56/00 ,  G01S3/02

Abstract: A system, method, and apparatus is provided for performing testing using arrival of angles (AOA). The system, method, and apparatus can receive a first test signal from a first cell; receive a second test signal from a second cell; and perform a test based on AOA of the first test signal and the second test signal. At least one of the first test signal and the second test signal can include a channel state information-reference signal (CSI-RS) signal or a synchronization signal block (SSB) signal. The first test signal can include a different number of SSBs transmitted during an Measurement Timing Configuration (MTC) window when compared to the second test signal. The system, method, and apparatus can receive the first test signal and the second test signal in a time division multiple access (TDMA) manner. The first cell can include a serving cell and the second cell can include a neighboring cell of the serving cell. The system, method, and apparatus can receive the first test signal using a main lobe of an antenna and the second test signal using a side lobe of the antenna.

公开(公告)号：US20220132344A1

公开(公告)日：2022-04-28

申请号：US17431286

申请日：2020-02-21

Applicant: Apple Inc.

Inventor： Yuhan ZHOU ,  Qiming LI ,  Shuang TIAN ,  Jie CUI ,  Rui HUANG ,  Yang TANG

IPC: H04W24/08 ,  H04L1/20

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for radio link monitoring for high speed user equipment (UE). For example, some embodiments are directed to a user equipment (UE) including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor a downlink associated with a cell using a reference signal and estimate a downlink radio link quality associated with the downlink. The processor circuitry can further be configured to compare the estimated downlink radio link quality with a threshold. The processor circuitry can further be configured to trigger an out-of-sync operation in response to the downlink radio link quality being worse than the threshold. The threshold can include a value less than 10%.

公开(公告)号：US20210385681A1

公开(公告)日：2021-12-09

申请号：US17288330

申请日：2019-10-22

Applicant: Apple Inc.

Inventor： Qiming LI ,  Hua LI ,  Rui HUANG ,  Jie CUI ,  Yang TANG

IPC: H04W24/10 ,  H04W72/04

Abstract: Methods, systems, and storage media are described for enhancements to measurement gaps for new radio (NR) systems. Other embodiments may be described and/or claimed.

公开(公告)号：US20250150165A1

公开(公告)日：2025-05-08

申请号：US18837554

申请日：2022-02-11

Applicant: Apple Inc.

Inventor： Jie CUI ,  Qiming LI ,  Xiang CHEN ,  Yang TANG ,  Hong HE ,  Haitong SUN ,  Manasa RAGHAVAN ,  Dawei ZHANG ,  Qunfeng HE ,  Chunxuan YE

IPC: H04B7/185 ,  H04B7/19 ,  H04B7/195 ,  H04W36/00 ,  H04W36/24

Abstract: Approaches are described to enhance radio link monitoring and link recovery for the integration of non-terrestrial networks (e.g., satellites) into next generation wireless communication networks. Certain approaches describe the modification of block error rate threshold requirements based on the particulars of the satellites involved, and the procedure for making those modifications. Other approaches describe the modification of the evaluation period based on the particulars of the satellites involved, and the procedure for making those modifications. In making these modifications, user-equipment (UE)-specific margins are also considered. In addition, modifications to the procedure for higher priority cell search are also described when non-terrestrial wireless communication networks are involved.

公开(公告)号：US20250119197A1

公开(公告)日：2025-04-10

申请号：US18729873

申请日：2022-01-18

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Wei ZENG ,  Haitong SUN ,  Dawei ZHANG ,  Jie CUI ,  Sigen YE ,  Huaning NIU ,  Qiming LI

IPC: H04B7/06 ,  H04L5/00 ,  H04W16/28 ,  H04W56/00 ,  H04W72/231

Abstract: A base station includes a transceiver and a processor. The processor is configured to transmit a first synchronization signal block (SSB) burst including a first set of SSBs. The first set of SSBs is transmitted via the transceiver on a first set of beams having a first beam pattern. The processor is also configured to signal, via the transceiver, a change in beam pattern for transmitted SSBs. The change in beam pattern is signaled before or during transmission of a second SSB burst. The processor is further configured to transmit the second SSB burst. The second SSB burst includes a second set of SSBs transmitted via the transceiver on a second set of beams having a second beam pattern. The second set of beams has a different number of beams than the first set of beams, and the second set of SSBs has a different number of SSBs than the first set of SSBs.