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：US20230121806A1

公开(公告)日：2023-04-20

申请号：US17440582

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Hua LI ,  Yang TANG ,  Jie CUI ,  Qiming LI ,  Zhibin YU

IPC: H04J11/00 ,  H04W24/10 ,  H04B17/318

Abstract: In a general aspect, a user equipment (UE) in a cellular communications network receives a first Synchronization Signal Block (SSB) corresponding to a first cell of the cellular communications network, and a second SSB corresponding to a second cell of the cellular communications network. The UE clarifies a first cell identifier (ID) of the first cell. The UE clarifies a second cell ID of the second cell. The UE determines an SSB measurement accuracy value using the first cell ID and the second cell ID.

公开(公告)号：US20220191878A1

公开(公告)日：2022-06-16

申请号：US17593079

申请日：2020-05-01

Applicant: APPLE INC.

Inventor： Zhibin YU ,  Yushu ZHANG

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

Abstract: Systems and methods for improving the robustness of a DCI triggered beam update in 5G NR are disclosed herein. A g Node B (gNB) may associate a reference signal to a beam pattern (or beam configuration) and prepare Downlink Control Information (DCI) of a Physical Downlink Control Channel (PDCCH) that includes aperiodic Channel-State Information Reference Signal (AP CSI-RS) information indicating the beam pattern. A user equipment (UE) may decode the DCI, extract the AP CSI-RS information, update the beam pattern of a reference signal based on the AP CSI-RS information, and generate an uplink (UL) feedback message indicating that the PDCCH was successfully decoded by the UE. The gNB may then decode the uplink (UL) feedback message and, in response, update a receive (RX) beam of the gNB to correspond to the beam pattern associated to the reference signal.

公开(公告)号：US20220173864A1

公开(公告)日：2022-06-02

申请号：US17593734

申请日：2020-05-08

Applicant: Apple Inc.

Inventor： Zhibin YU ,  Jie CUI ,  Yang TANG ,  Rui HUANG ,  Qing XU

IPC: H04L5/00

Abstract: A user equipment that selects at least one synchronization signal block (SSB) resource ID based on measurements of a second signal block, wherein the second signal block comprises a system information block (SIB) in 5G new radio (NR) that is spatially quasi co-located (QCLed) with the SSB resource ID, generates a beam reporting message including the selected SSB resource ID(s) and transmits the beam reporting message to a base station. A next generation NodeB (gNB) in a wireless network including the gNB and a UE that allocates downlink (DL) reference resources (RS) in a frequency range for the UE, wherein the DL comprise SIB occasions, each associated with a synchronization signal block (SSB) resource identification (ID) and receives reporting messages containing measurements by the UE for the DL RS.