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1.发明申请公开(公告)号：US20200153587A1
公开(公告)日：2020-05-14
申请号：US16747152
申请日：2020-01-20
Applicant: Apple Inc.
Inventor： Claudio Da Silva , Hosein Nikopour , Wook Bong Lee
Abstract: Embodiments of a station (STA) and method for communication in accordance with phase noise compensation are generally described herein. The STA may determine, based at least partly on one or more operational parameters, whether to perform phase noise compensation of data symbols of a received protocol data unit (PDU). For instance, the STA may compare the operational parameters with one or more thresholds. The STA may further determine a method of phase noise compensation based at least partly on one or more operational parameters. As an example, the STA may determine a type of interpolation to be used for an interpolation of phase noise estimates of pilot symbols to determine phase noise estimates of data symbols. Example operational parameters may include a signal quality metric, a carrier frequency offset (CFO) measurement and/or modulation and coding scheme (MCS).
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公开(公告)号：US20200007217A1
公开(公告)日：2020-01-02
申请号：US16560246
申请日：2019-09-04
Applicant: Apple Inc.
Inventor： Mahmoud Taherzadehboroujeni , Hosein Nikopour , Amir Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
IPC: H04B7/06 , H04B7/08 , H04L1/06 , H04L5/00 , H04B7/0413
Abstract: Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined
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公开(公告)号：US09136923B2
公开(公告)日：2015-09-15
申请号：US14551053
申请日：2014-11-23
Applicant: Apple Inc.
Inventor： Wen Tong , Hosein Nikopour , Amir Keyvam Khandani , Hua Xu , Ming Jia , Peiying Zhu , Dong-Sheng Yu
CPC classification number: H04B7/0478 , H04B7/0417 , H04B7/0456 , H04B7/0634 , H04B7/0639 , H04L69/04 , H04L69/14
Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
Abstract translation: 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci，其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子，并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字c1创建码字子集S1。每个码字子集S1定义从码本C中的所有码字ci中选择的L个码字cj。码字子集S1中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。
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公开(公告)号：US12149311B2
公开(公告)日：2024-11-19
申请号：US17825906
申请日：2022-05-26
Applicant: Apple Inc.
Inventor： Oner Orhan , Brent Elliott , Hosein Nikopour , Eren Sasoglu , Shilpa Talwar
IPC: H04B7/06 , H04B1/44 , H04B7/0456
Abstract: An apparatus, method and computer readable medium for special thermal density reduction by antenna thinning. A system comprises N transmit/receive (TX/RX) chains, where each TX/RX chain comprises an RFFE and each RFFE comprises one or more thermal sensors configured to measure heat in the RFFE. An antenna array coupled to the plurality of TX/RX chains. A codebook that comprises a plurality of code words configured to respond to real-time heat measurements from the thermal sensors in each TX/RX chain is configured to switch off selected TX/RX chains to reduce thermal density at the antenna array while maintaining M RFFEs switched on, where M
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公开(公告)号：US11811439B2
公开(公告)日：2023-11-07
申请号：US17751288
申请日：2022-05-23
Applicant: Apple Inc.
Inventor： Mikhail T. Galeev , Oner Orhan , Arnaud Lucres Amadjikpe , Benjamin Grewell , Navid Naderi , Hosein Nikopour , Susruth Sudhakaran , Shilpa Talwar , Liang Xian
CPC classification number: H04B1/1027 , H04B1/123 , H04B1/525
Abstract: A mobile communication device that is configured to cancel interference within received millimeter wave band signals. The device includes a receiver circuit that is configured to receive a millimeter wave band signal, adjust gain provided to the millimeter wave band signal at a first amplifier, cancel interference in millimeter wave band signal after gain is adjusted by the first amplifier, and adjust gain provided to the millimeter wave band signal at a second amplifier after interference is cancelled.
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Patent Agency Ranking
公开(公告)号：US20230024218A1
公开(公告)日：2023-01-26
申请号：US17950300
申请日：2022-09-22
Applicant: Apple Inc.
Inventor： Mikhail T. Galeev , Oner Orhan , Arnaud Lucres Amadjikpe , Benjamin Grewell , Navid Naderi , Hosein Nikopour , Susruth Sudhakaran , Shilpa Talwar , Liang Xian
Abstract: A mobile communication device that is configured to cancel interference within received millimeter wave band signals. The device includes a receiver circuit that is configured to receive a millimeter wave band signal, adjust gain provided to the millimeter wave band signal at a first amplifier, cancel interference in millimeter wave band signal after gain is adjusted by the first amplifier, and adjust gain provided to the millimeter wave band signal at a second amplifier after interference is cancelled.
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公开(公告)号：US09900069B2
公开(公告)日：2018-02-20
申请号：US15665711
申请日：2017-08-01
Applicant: Apple Inc.
Inventor： Wen Tong , Hosein Nikopour , Amir Khandani , Hua Xu , Ming Jia , Peiying Zhu , Dong-sheng Yu
IPC: H04B7/04 , H04B7/0456 , H04L29/06 , H04B7/0417 , H04B7/06
CPC classification number: H04B7/0478 , H04B7/0417 , H04B7/0456 , H04B7/0634 , H04B7/0639 , H04L69/04 , H04L69/14
Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
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公开(公告)号：US09813136B2
公开(公告)日：2017-11-07
申请号：US15357552
申请日：2016-11-21
Applicant: APPLE INC.
Inventor： Mahmoud Taherzadehboroujeni , Hosein Nikopour , Amir Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
CPC classification number: H04B7/0669 , H04B7/0413 , H04B7/06 , H04B7/0697 , H04B7/0891 , H04L1/0606 , H04L1/0625 , H04L1/0643 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L27/2626
Abstract: Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.
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公开(公告)号：US09673932B2
公开(公告)日：2017-06-06
申请号：US14803698
申请日：2015-07-20
Applicant: APPLE INC.
Inventor： Dong-Sheng Yu , Hosein Nikopour , Sophie Vrzic , Mo-Han Fong , Robert Novak , Jun Yuan
CPC classification number: H04L1/0041 , H03M13/2903 , H04J13/16 , H04L1/0026 , H04L1/0042 , H04L1/0047 , H04L1/0057 , H04L1/0067 , H04L1/0072 , H04L1/0079 , H04L1/0656 , H04L5/0048 , H04L5/0055 , H04L5/0057 , H04W28/06
Abstract: Transmission of uplink control message for a wireless system. The uplink control message may be encoded according to one of multiple possible schemes. The choice of encoding scheme may be made based on the control message size and/or based on the available transmission resources and/or based on the detection scheme used on the receiving end. A modulation scheme may also be selected based on such factors. CDM may be used for certain control messages. Block code encoding, such as Reed-Muller encoding may be used for certain control messages. Different transmission resources may be allocated for different control message uses. The encoding specifics may be selected to obtain a certain hamming distance and/or size of the encoded message or based on other factors.
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公开(公告)号：US20220368381A1
公开(公告)日：2022-11-17
申请号：US17811477
申请日：2022-07-08
Applicant: APPLE INC.
Inventor： Jan Schreck , Nageen Himayat , Hosein Nikopour , Feng Xue , Ehsan Aryafar , Oner Orhan , Mustafa R. Akdeniz , Wook Bong Lee , Jing Zhu
IPC: H04B7/0456 , H04B7/0417 , H04B7/06 , H04L5/00 , H04W72/12
Abstract: Apparatuses of a user equipment (UE), a cellular base station, and radio access network (RAN) nodes are disclosed. An apparatus of a wireless communication device includes circuitry configured to measure reference signals received from a plurality of antennas of an other wireless communication device, and circuitry configured to cause one or more antennas of the wireless communication device to transmit information regarding the received reference signals back to the other wireless communication device to enable the other wireless communication device to estimate a utility function for different transmit parameter sets.
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