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1.发明授权公开(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
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).
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公开(公告)号：US20230101423A1
公开(公告)日：2023-03-30
申请号：US17959012
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Zhibin Yu , Michael Ruder , Holger Neuhaus , Yeong-Sun Hwang , Bertram Gunzelmann
Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.
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Patent Agency Ranking
公开(公告)号：US11463212B2
公开(公告)日：2022-10-04
申请号：US16768460
申请日：2017-12-29
Applicant: Apple Inc.
Inventor： Zhibin Yu , Michael Ruder , Holger Neuhaus , Yeong-Sun Hwang , Bertram Gunzelmann
Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.
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公开(公告)号：US20200259561A1
公开(公告)日：2020-08-13
申请号：US16792147
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Sabine Roessel , Holger Neuhaus , Yeong-Sun Hwang , Bertram Gunzelmann , Andreas Menkhoff , Elmar Wagner , Jong-Kae Fwu , Xiangyang Zhuang
Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.
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公开(公告)号：US11924132B2
公开(公告)日：2024-03-05
申请号：US17959012
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Zhibin Yu , Michael Ruder , Holger Neuhaus , Yeong-Sun Hwang , Bertram Gunzelmann
CPC classification number: H04L5/0048 , H04B7/0814 , H04B7/088 , H04L25/03261
Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.
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6.发明授权公开(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
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).
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公开(公告)号：US11165495B2
公开(公告)日：2021-11-02
申请号：US16792147
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Sabine Roessel , Holger Neuhaus , Yeong-Sun Hwang , Bertram Gunzelmann , Andreas Menkhoff , Elmar Wagner , Jong-Kae Fwu , Xiangyang Zhuang
Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.
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