公开(公告)号：US20220322113A1

公开(公告)日：2022-10-06

申请号：US17438139

申请日：2021-03-31

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Andre Janssen ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yeong-Sun Hwang ,  Franz J. Eder

IPC: H04W24/04 ,  H04W24/08 ,  H04L5/00

Abstract: Apparatuses, systems, and methods for beam failure recovery based on a unified TCI framework. A UE may receive, from a base station, a configuration for a BFR procedure for a CCG. The CCG may include at least two CCs and the UE may periodically receive, from the base station, at least a first BFD RS and a first CBD RS in a first CC included in the CCG. The UE may detect, based on the first BFD RS, a beam failure in at least the first CC and send, to the base station, a BFRQ. The BFRQ may include a candidate beam selected based on at least the first CBD RS and may be sent via a PRACH or MAC CE. The UE may receive, from the base station, a BFR response and apply the candidate beam to the first CC and at least one additional CC of the CCG.

公开(公告)号：US12267702B2

公开(公告)日：2025-04-01

申请号：US17438139

申请日：2021-03-31

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Andre Janssen ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yeong-Sun Hwang ,  Franz J. Eder

IPC: H04W24/04 ,  H04L5/00 ,  H04W24/08

Abstract: Apparatuses, systems, and methods for beam failure recovery based on a unified TCI framework. A UE may receive, from a base station, a configuration for a BFR procedure for a CCG. The CCG may include at least two CCs and the UE may periodically receive, from the base station, at least a first BFD RS and a first CBD RS in a first CC included in the CCG. The UE may detect, based on the first BFD RS, a beam failure in at least the first CC and send, to the base station, a BFRQ. The BFRQ may include a candidate beam selected based on at least the first CBD RS and may be sent via a PRACH or MAC CE. The UE may receive, from the base station, a BFR response and apply the candidate beam to the first CC and at least one additional CC of the CCG.

公开(公告)号：US11909124B2

公开(公告)日：2024-02-20

申请号：US17246208

申请日：2021-04-30

Applicant: Apple Inc.

Inventor： Franz J. Eder ,  Carlo Tosetti ,  Kenan Kocagoez ,  Prashant H. Vashi ,  Murali Mohan Chakka ,  Muthukumaran Dhanapal

IPC: H01Q3/24 ,  H04B7/06 ,  H04B17/13 ,  H01Q1/02 ,  H01Q3/34 ,  H01Q25/00

CPC classification number: H01Q3/24 ,  H01Q1/02 ,  H01Q3/34 ,  H01Q25/002 ,  H04B17/13

Abstract: An electronic device having multiple antenna groups for data communication may determine a temperature of a first antenna group and determine a power gain of a second antenna group. The electronic device may communicate using the second antenna group in response to determining that the temperature of the first antenna group exceeds a temperature threshold and the power gain of the second antenna group exceeds a gain threshold. In some embodiments, the electronic device may receive communication link preferences, determine an antenna group that is disposed outside of thermal hotspots of the electronic device, and determine a beam that enables the communication link preferences via the antenna group. The electronic device may then transmit or receive data via the antenna group by forming the beam.

公开(公告)号：US11824616B2

公开(公告)日：2023-11-21

申请号：US17899178

申请日：2022-08-30

Applicant: Apple Inc.

Inventor： Franz J. Eder ,  Adrian Carlos Loch Navarro ,  Andre Janssen ,  Holger Neuhaus ,  Kenan Kocagoez

IPC: H04B7/02 ,  H04B7/08 ,  H04B7/06

CPC classification number: H04B7/0857 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/086 ,  H04B7/088

Abstract: Some aspects relate to apparatuses and methods for selecting a receiving beam based on hybrid channel based beamforming and codebook based beamforming. A user equipment (UE) can determine, based on a first measurement related to signal to noise ratio (SNR) and predetermined threshold values, whether the UE is in a low SNR state. If the UE is in a low SRN state, the UE can derive an estimated channel covariance matrix RCH for channels at a set of antenna elements of the UE based on channel based beamforming (CHBF). Afterwards, a set of test beams {0, . . . Ntest−1} is selected based on the channel covariance matrix RCH, and a set of codebook measurement beams is further selected based on the set of test beams. A receiving beam is selected based on a set of measurements performed on the set of codebook measurement beams at the measurement opportunity for codebook based beamforming (CBBF).

公开(公告)号：US12224843B2

公开(公告)日：2025-02-11

申请号：US18474375

申请日：2023-09-26

Applicant: APPLE INC.

Inventor： Franz J. Eder ,  Adrian Carlos Loch Navarro ,  Andre Janssen ,  Holger Neuhaus ,  Kenan Kocagoez

IPC: H04B7/10 ,  H04B7/06 ,  H04B7/08

Abstract: Some aspects relate to apparatuses and methods for selecting a receiving beam based on hybrid channel based beamforming and codebook based beamforming. A user equipment (UE) can determine, based on a first measurement related to signal to noise ratio (SNR) and predetermined threshold values, whether the UE is in a low SNR state. If the UE is in a low SRN state, the UE can derive an estimated channel covariance matrix RCH for channels at a set of antenna elements of the UE based on channel based bearmforming (CHBF). Afterwards, a set of test bears {0, . . . Ntest−1} is selected based on the channel covariance matrix RCH, and a set of codebook measurement beams is further selected based on the set of test beams. A receiving beam is selected based on a set of measurements performed on the set of codebook measurement beams at the measurement opportunity for codebook based beamforming (CBBF).

公开(公告)号：US20240380449A1

公开(公告)日：2024-11-14

申请号：US18613844

申请日：2024-03-22

Applicant: Apple Inc.

Inventor： Konstantinos Sarrigeorgidis ,  Manasa Raghavan ,  Yang Tang ,  Franz J. Eder ,  Andre Janssen ,  Xiang Chen ,  Jie Cui

IPC: H04B7/0456 ,  H04B7/0408

Abstract: Techniques described herein include solutions for utilizing dual port synchronization signal block (SSB) transmissions for multiple receive (Rx) beam selection. In some aspects, a base station transmits a first SSB with a first polarization on a first antenna port, and transmits a second SSB with a second polarization on a second antenna port. The first and second SSBs may be transmitted, for example, using a first transmission reception point (TRP). A user equipment (UE) receives the first and second SSBs, and identifies one or more optimal Rx beams for multiple-input multiple-output (MIMO) communication based on the first and second SSBs.

公开(公告)号：US20220352627A1

公开(公告)日：2022-11-03

申请号：US17246208

申请日：2021-04-30

Applicant: Apple Inc.

Inventor： Franz J. Eder ,  Carlo Tosetti ,  Kenan Kocagoez ,  Prashant H. Vashi ,  Murali Mohan Chakka ,  Muthukumaran Dhanapal

IPC: H01Q3/24 ,  H04B17/13 ,  H01Q25/00 ,  H01Q3/34 ,  H01Q1/02

Abstract: An electronic device having multiple antenna groups for data communication may determine a temperature of a first antenna group and determine a power gain of a second antenna group. The electronic device may communicate using the second antenna group in response to determining that the temperature of the first antenna group exceeds a temperature threshold and the power gain of the second antenna group exceeds a gain threshold. In some embodiments, the electronic device may receive communication link preferences, determine an antenna group that is disposed outside of thermal hotspots of the electronic device, and determine a beam that enables the communication link preferences via the antenna group. The electronic device may then transmit or receive data via the antenna group by forming the beam.