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公开(公告)号：US12127142B1
公开(公告)日：2024-10-22
申请号：US18501528
申请日：2023-11-03
申请人： NextNav France
发明人： Rabih Chrabieh
CPC分类号： H04W56/001 , H04B17/318 , H04J13/0059 , H04L27/2607 , H04L27/2628 , H04W4/80 , H04W16/14 , H04W48/20 , H04W56/0045
摘要： A wireless communications method synchronously transmits periodically from synchronized base stations of a single frequency network a common downlink synchronization signal (IoT-PSS) that underlays broadcasted signals transmitted in licensed bands of a cellular system, and a system frame number least significant bits signal (IoT-SFN-LSB) indicating timing of transmission of a system information block signal (IoT-SIB) that contains information related to downlink and uplink transmission schedules and allocations. An IoT device receives the common downlink synchronization signal and transmits uplink data only after receiving the synchronization signal and system frame number signal.
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公开(公告)号：US11877232B2
公开(公告)日：2024-01-16
申请号：US18095945
申请日：2023-01-11
IPC分类号： H04W48/16 , H04W72/0446 , H04L5/00 , H04W48/08 , H04J13/00 , H04L5/14 , H04B17/318
CPC分类号： H04W48/16 , H04B17/318 , H04J13/0059 , H04L5/0048 , H04L5/14 , H04W48/08 , H04W72/0446
摘要： A system and method identifying at least one aggressor cell. The method comprises transmitting at least one subframe from at least one base station of a first set of base stations to a second set of base stations, wherein the at least one subframe further comprises of at least one downlink subframe, at least uplink subframe and at least one special subframe. The second set of base stations decodes the at least one received subframe, and maps each of the at least one received downlink subframe, at least one received uplink subframe and at least one received special subframe of the at least one received subframe to at least one expected subframe. Lastly, at least one aggressor cell is determined based on a mismatch of the at least one received subframe and the at least one expected subframe.
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公开(公告)号：US20230299866A1
公开(公告)日：2023-09-21
申请号：US18322348
申请日：2023-05-23
发明人： Seigo NAKAO , Daichi IMAMURA
IPC分类号： H04J13/00 , H04J13/22 , H04L1/1829 , H04L5/00 , H04L25/03 , H04L27/26 , H04W72/20 , H04W72/21 , H04W72/23 , H04L1/00 , H04L1/1825 , H04L1/1867
CPC分类号： H04J13/0003 , H04J13/0059 , H04J13/0074 , H04J13/22 , H04L1/1854 , H04L5/0007 , H04L5/0053 , H04L25/03866 , H04L27/2613 , H04W72/20 , H04W72/21 , H04W72/23 , H04L1/1861 , H04L5/0055 , H04L1/0061 , H04L27/2602 , H04L27/2626 , H04L1/1825 , H04L1/1893 , H04L1/1896 , H04L5/006 , H04L5/0091 , H04L2001/125
摘要： Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
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公开(公告)号：US20230231675A1
公开(公告)日：2023-07-20
申请号：US18189430
申请日：2023-03-24
申请人： Apple Inc.
发明人： Gang XIONG , Dae Won LEE , Gregory MOROZOV , Yushu ZHANG , Jie ZHU
IPC分类号： H04L5/00 , H04J13/00 , H04W72/0453 , H04J3/02
CPC分类号： H04L5/0048 , H04J13/0059 , H04W72/0453 , H04J3/02
摘要： Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising multiplexing, by a gNodeB (gNB), a physical broadcast channel (PBCH) and an associated demodulation reference signal (DMRS) in a time division multiplexing (TDM) manner; and transmitting, by the gNB, the PBCH by employing a Discrete Fourier Transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform and its associated DMRS.
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公开(公告)号：US11700076B2
公开(公告)日：2023-07-11
申请号：US17741134
申请日：2022-05-10
发明人： Seigo Nakao , Daichi Imamura
IPC分类号： H04L1/1825 , H04J13/00 , H04J13/22 , H04L1/1829 , H04L5/00 , H04L25/03 , H04L27/26 , H04W72/20 , H04W72/21 , H04W72/23 , H04L1/00 , H04L1/1867 , H04L1/12
CPC分类号： H04J13/0003 , H04J13/0059 , H04J13/0074 , H04J13/22 , H04L1/0061 , H04L1/1825 , H04L1/1854 , H04L1/1861 , H04L1/1893 , H04L1/1896 , H04L5/0007 , H04L5/0053 , H04L5/0055 , H04L25/03866 , H04L27/2602 , H04L27/2613 , H04L27/2626 , H04W72/20 , H04W72/21 , H04W72/23 , H04L5/006 , H04L5/0091 , H04L2001/125
摘要： Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)”, so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
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公开(公告)号：US10015794B2
公开(公告)日：2018-07-03
申请号：US15588247
申请日：2017-05-05
申请人： Sun Patent Trust
CPC分类号： H04W72/0453 , H04B7/0456 , H04J13/0059 , H04L1/0003 , H04L1/0009 , H04L5/0007 , H04L5/0021 , H04L5/0023 , H04L5/0041 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2636
摘要： A wireless communication terminal apparatus wherein even when a SC-FDMA signal is divided into a plurality of clusters and the plurality of clusters are then mapped to respective discontinuous frequency bands (when C-SC-FDMA is used), the improvement effect of system throughput can be maintained, while the user throughput can be improved. In the apparatus, a DFT unit (210) subjects a symbol sequence of time domain to a DFT process, thereby generating signals of frequency domain. A setting unit (211) divides the signals input from the DFT unit (210) into a plurality of clusters according to a cluster pattern that is in accordance with an MCS set, an encoding size, or the number of Ranks occurring during MIMO transmissions, which is indicated in those signals input, and then maps the plurality of clusters to the respective ones of a plurality of discontinuous frequency resources, thereby setting a constellation of the plurality of clusters in the frequency domain.
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公开(公告)号：US20180069647A1
公开(公告)日：2018-03-08
申请号：US15807774
申请日：2017-11-09
CPC分类号： H04J13/0059 , H04B7/022 , H04J13/0062 , H04J13/22 , H04L5/0041 , H04L5/0048 , H04L5/0053 , H04L5/0062 , H04L5/0073 , H04L5/0078 , H04L23/02 , H04L25/0226 , H04L27/261 , H04L27/262 , H04W72/04
摘要： A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni_ck/Np1| or |(ri/Ni_ck/Np1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups.
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公开(公告)号：US09900915B2
公开(公告)日：2018-02-20
申请号：US15485337
申请日：2017-04-12
IPC分类号： H04W24/00 , H04W80/04 , H04W74/08 , H04J13/00 , H04J13/16 , H04J13/22 , H04L5/00 , H04W72/04
CPC分类号： H04W74/0833 , H04J13/0059 , H04J13/0066 , H04J13/16 , H04J13/22 , H04L5/0091 , H04W72/042
摘要： Apparatus for use in a mobile radio station includes a memory to store a table of adaptable associations between control information and code sequences. A data processor detects a condition and dynamically adapts one or more of the associations in the table stored in memory between control information and code sequences depending on the detected condition. A transmitter transmits one of the code sequences selected based on the dynamically adapted one or more of the associations.
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9.发明申请公开(公告)号：US20170366315A1
公开(公告)日：2017-12-21
申请号：US15696790
申请日：2017-09-06
申请人： NEC Corporation
发明人： Kengo OKETANI , Yoshikazu KAKURA
CPC分类号： H04L5/0044 , H04B2201/70701 , H04J13/0059 , H04J13/0062 , H04J13/16 , H04L5/0007 , H04L5/0048 , H04W28/04 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0446
摘要： A device and method is which plurality of Zadoff-Chu sequences is allocated to a frame, a value of a parameter in the Zadoff-Chu sequence is different among the plurality of Zadoff-Chu sequences, and the Zadoff-Chu sequence allocated to the frame is different among a plurality of cells.
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公开(公告)号：US09787421B2
公开(公告)日：2017-10-10
申请号：US15075947
申请日：2016-03-21
申请人： NEC Corporation
发明人： Kengo Oketani , Yoshikazu Kakura
CPC分类号： H04L5/0044 , H04B2201/70701 , H04J13/0059 , H04J13/0062 , H04J13/16 , H04L5/0007 , H04L5/0048 , H04W28/04 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0446
摘要： A device and method in which plurality of Zadoff-Chu sequences is allocated to a frame, a value of a parameter in the Zadoff-Chu sequence is different among the plurality of Zadoff-Chu sequences, and the Zadoff-Chu sequence allocated to the frame is different among a plurality of cells.
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