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1.发明申请公开(公告)号：US20220369322A1
公开(公告)日：2022-11-17
申请号：US17868365
申请日：2022-07-19
Applicant: Apple Inc.
Inventor： Shu-Ping Yeh , Jingwen Bai , Sung-En Chiu , Ping Wang , Feng Xue , Yang-Seok Choi , Shilpa Talwar
Abstract: Devices and methods of providing joint scheduling in a full-duplex LTE system are generally described. The UE measures intra-cell interference at the UE caused by a UL transmission from each intra-cell UE, calculates a ratio of the intra-cell interference over an average inter-cell interference, determines whether the intra-cell UE is an aggressor or non-aggressor based on whether the ratio exceeds a threshold, transmits at least some of the determinations to the eNB as feedback, and communicates with the eNB based on a schedule that is dependent on the feedback such that the UE is neither an aggressor nor is subject to interference from aggressors. The schedule may also be based on wideband CQI feedback based on a ratio of an average overall DL interference plus noise over the average inter-cell interference plus noise and/or subband. CQI feedback based on SINR measurements.
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Patent Agency Ranking
公开(公告)号：US11139946B2
公开(公告)日：2021-10-05
申请号：US15171641
申请日：2016-06-02
Applicant: Apple Inc.
Inventor： Venkatesan Nallampattiekambaram , Yang-Seok Choi
IPC: H04L5/14 , H04B1/525 , H04B7/0413 , H04B1/48 , H04W88/02
Abstract: The disclosure relates to a cancellation device for cancelling interference caused by a non-linear device, the cancellation device comprising: an adaptive filter coupled in parallel to the non-linear device, wherein the adaptive filter is configured to filter an input signal of the non-linear device to generate an approximation signal approximating an output signal of the non-linear device; an error signal generator configured to generate an error signal based on a function of the output signal and the approximation signal; and a controller configured to adjust the adaptive filter based on the error signal and a phase and magnitude relation of the output signal and the input signal.
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公开(公告)号：US20230344614A1
公开(公告)日：2023-10-26
申请号：US18312279
申请日：2023-05-04
Applicant: Apple Inc.
Inventor： Feng Xue , Yang-Seok Choi , Daniel Schwartz , Shu-Ping Yeh , Namyoon Lee , Venkatesan Nallampatti Ekambaram , Ching-En Lee , Chia-Hsiang Chen
CPC classification number: H04L5/1461 , H04B1/525 , H04B1/44 , H04B15/00 , H04B1/48 , H04B7/0413
Abstract: A communication circuit arrangement includes a signal path circuit to estimate, using a first kernel dimension filter and a first delay tap dimension filter, a first interference signal produced by a first amplifier. The signal path circuit further estimates, using a second kernel dimension filter and a second delay tap dimension filter, a second interference signal produced by a second amplifier. A cancellation circuit of the communication circuit arrangement may subtract a combination of the first interference signal and the second interference signal from a received signal to obtain a filtered signal, and one or more filter adaptation circuits may alternate between a kernel update phase and a delay update phase to update the first kernel dimension filter and the second kernel dimension filter during the kernel update phase, and update the first delay tap dimension filter and the second delay tap dimension filter during the delay update phase.
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公开(公告)号：US11671235B2
公开(公告)日：2023-06-06
申请号：US16327386
申请日：2016-09-29
Applicant: Apple Inc.
Inventor： Feng Xue , Yang-Seok Choi , Daniel Schwartz , Shu-Ping Yeh , Namyoon Lee , Venkatesan Nallampatti Ekambaram , Ching-En Lee , Chia-Hsiang Chen
CPC classification number: H04L5/1461 , H04B1/44 , H04B1/48 , H04B1/525 , H04B7/0413 , H04B15/00
Abstract: A communication circuit arrangement includes a first kernel dimension filter circuit configured to apply a first kernel dimension filter to a first input signal to estimate a first kernel dimension interference signal from a first amplifier, a second kernel dimension filter circuit configured to apply a second kernel dimension filter to a second input signal to estimate a second kernel dimension interference signal from a second amplifier, a joint delay tap dimension filter configured to apply a joint delay tap dimension filter to a combination of the first kernel dimension interference signal and the second kernel dimension interference signal to obtain an estimated joint interference signal, and a cancelation circuit configured to remove the estimated joint interference signal from a received signal to obtain a clean signal.
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5.发明授权公开(公告)号：US11419124B2
公开(公告)日：2022-08-16
申请号：US16086490
申请日：2016-04-25
Applicant: Apple Inc.
Inventor： Shu-Ping Yeh , Jingwen Bai , Sung-En Chiu , Ping Wang , Feng Xue , Yang-Seok Choi , Shilpa Talwar
Abstract: Devices and methods of providing joint scheduling in a full-duplex LTE system are generally described. The UE measures intra-cell interference at the UE caused by a UL transmission from each intra-cell UE, calculates a ratio of the intra-cell interference over an average inter-cell interference, determines whether the intra-cell UE is an aggressor or non-aggressor based on whether the ratio exceeds a threshold, transmits at least some of the determinations to the eNB as feedback, and communicates with the eNB based on a schedule that is dependent on the feedback such that the UE is neither an aggressor nor is subject to interference from aggressors. The schedule may also be based on wideband CQI feedback based on a ratio of an average overall DL interference plus noise over the average inter-cell interference plus noise and/or subband CQI feedback based on SINR measurements.
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6.发明授权公开(公告)号：US10863506B2
公开(公告)日：2020-12-08
申请号：US16021871
申请日：2018-06-28
Applicant: Apple Inc.
Inventor： Hujun Yin , Rongzhen Yang , Xiaoshu Qian , Yang-Seok Choi , Sassan Ahmadi , Kamran Etemad
Abstract: Embodiments of the present invention provide a virtual multicarrier design for orthogonal frequency division multiple access communications. Other embodiments may be described and claimed.
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