公开(公告)号：US20130003686A1

公开(公告)日：2013-01-03

申请号：US13614417

申请日：2012-09-13

Applicant: Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

Inventor： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC: H04W72/00 ,  H04W74/08

CPC classification number: H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

公开(公告)号：US20100296553A1

公开(公告)日：2010-11-25

申请号：US12794211

申请日：2010-06-04

Applicant: Carlo Luschi ,  Gang Wang

Inventor： Carlo Luschi ,  Gang Wang

IPC: H04B1/707 ,  H04B1/10

CPC classification number: H04B1/7113 ,  H04B1/707 ,  H04B1/7103 ,  H04B1/7115 ,  H04B1/7117 ,  H04B2201/7071 ,  H04B2201/70713 ,  H04B2201/709718 ,  H04L25/0212 ,  H04L25/03012

Abstract: A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described.

Abstract translation: 一种处理在无线通信系统的接收机处接收的信号的数字样本的方法包括监视信道状况并通过执行以下中的至少一个来生成包括至少一个信道参数的信道指示符：估计信道移动性参数并将其与 阈; 估计在预定时间窗口之外的信道的能量的信道参数并将其与阈值进行比较; 估计信道时间持续时间参数并确定它是否符合预定标准; 估计信道零位置参数并确定它是否符合预定标准; 估计接收信号信号与干扰功率比并将其与阈值进行比较; 估计信道响应信号与干扰功率比; 估计接收机输入干扰的非平稳度; 以及基于所述信道指示符选择用于处理数字样本的多个处理例程之一。 还描述了相关接收机。

公开(公告)号：EP2958244A1

公开(公告)日：2015-12-23

申请号：EP15169731.5

申请日：2015-05-28

Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Inventor： LENOIR, Vincent ,  LATTARD, Didier ,  LOMBARDI, Warody

IPC: H04B1/7075

CPC classification number: H04B1/709 ,  H04B1/70752 ,  H04B2201/70713 ,  H04L27/22 ,  H04L27/2601

Abstract: L'invention concerne un procédé de décodage d'un symbole de données porté par un signal reçu par un récepteur d'un système de communication, le symbole de données étant modulé par une séquence de code d'étalement choisie parmi une pluralité de séquences de code d'étalement (R0-R15) quasi-orthogonales entre elles pour différencier le symbole d'autres symboles de données, et reçu sous la forme d'un ensemble de bits de modulation, le procédé comprenant une étape de corrélation (CORR) du symbole de données modulé reçu avec chacune de la pluralité de séquence de code d'étalement (R0-R15), et étant caractérisé en ce que l'étape de corrélation est précédée d'une étape de sous-échantillonnage (SUB-SPL, MSQ) du symbole de données modulé reçu pour y masquer un ou plusieurs des bits de modulation, de telle manière que l'étape de corrélation du symbole de données reçu sous-échantillonné n'est réalisée que pour les bits de modulation non masqués.
Elle s'étend à une unité de démodulation (1) configurée pour la mise en oeuvre de ce procédé, ainsi qu'à un récepteur intégrant une telle unité.

公开(公告)号：EP2068475B1

公开(公告)日：2015-02-18

申请号：EP07828792.7

申请日：2007-09-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： IMAMURA, Daichi ,  IWAI, Takashi ,  INOGAI, Kazunori ,  FUTAGI, Sadaki ,  MATSUMOTO, Atsushi

IPC: H04J13/22 ,  H04J13/00

CPC classification number: H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

公开(公告)号：US12126432B2

公开(公告)日：2024-10-22

申请号：US18348926

申请日：2023-07-07

Applicant: Panasonic Holdings Corporation

Inventor： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC: H04J13/00 ,  H04B1/707 ,  H04B1/7083 ,  H04J13/22 ,  H04L5/00 ,  H04L23/02 ,  H04L27/26 ,  H04W72/0453 ,  H04W74/08 ,  H04W74/0833 ,  H04J13/10 ,  H04W72/04 ,  H04W72/0446

CPC classification number: H04J13/0062 ,  H04B1/707 ,  H04B1/7083 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/0453 ,  H04W74/0833 ,  H04W74/0875 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/102 ,  H04W72/04 ,  H04W72/0446

Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

公开(公告)号：US20190245640A1

公开(公告)日：2019-08-08

申请号：US16331930

申请日：2017-08-29

Applicant: SHARP KABUSHIKI KAISHA ,  FG Innovation Company Limited

Inventor： TAKASHI YOSHIMOTO ,  JUNGO GOTO ,  OSAMU NAKAMURA ,  YASUHIRO HAMAGUCHI

IPC: H04J11/00 ,  H04W72/12 ,  H04B1/7083

CPC classification number: H04J11/0086 ,  H04B1/7083 ,  H04B2201/70713 ,  H04J11/0079 ,  H04J13/18 ,  H04L27/26 ,  H04W4/70 ,  H04W72/04 ,  H04W72/1284 ,  H04W74/08

Abstract: A base station apparatus, a terminal apparatus, and a communication method are provided that are capable of suppressing an increase in processing loads for identification of each terminal apparatus and signal detection for uplink data, a decrease in identification accuracy, and an increase in control information for identification of the terminal apparatus in a multiple access using grant free. A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive a multi-access signature process index from the base station apparatus, and a transmitter configured to transmit a demodulation reference signal and an uplink physical channel. The multi-access signature process index is information indicating association of a mark identifying the uplink physical channel transmitted by grant free access. The transmitter transmits the uplink physical channel processed based on the mark identifying the uplink physical channel and associated with the demodulation reference signal.

公开(公告)号：US20160270122A1

公开(公告)日：2016-09-15

申请号：US15161973

申请日：2016-05-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC: H04W74/08 ,  H04L5/00

CPC classification number: H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

公开(公告)号：US20150200705A1

公开(公告)日：2015-07-16

申请号：US14637207

申请日：2015-03-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC: H04B1/707 ,  H04W74/08 ,  H04L23/02

CPC classification number: H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

Abstract translation: 一种序列分配方法和装置，其中在将多个不同的Zadoff-Chu序列或GCL序列分配给单个小区的系统中，可以减少接收端的相关电路的算术量和电路规模。 在ST201中，初始化当前序列分配的计数器（a）和数量（p），并且在ST202中，确定当前序列分配的数量（p）是否与一个分配的数量（K）一致 细胞。 在ST203中，确定对一个单元的分配的数量（K）是奇数还是偶数。 如果K是偶数，则在ST204-ST206中，组合然后分配未被分配的序列号（r = a和r = N-a）。 如果K是奇数，则在ST207-ST212中，对于不能配对的序列，分配未分配的序列号（r = a和r = N-a）中的一个。

公开(公告)号：US20130028296A1

公开(公告)日：2013-01-31

申请号：US13192003

申请日：2011-07-27

Applicant: Aamod D. Khandekar ,  Dario Fertonani ,  Srikanth Gummadi

Inventor： Aamod D. Khandekar ,  Dario Fertonani ,  Srikanth Gummadi

IPC: H04B1/707

CPC classification number: H04B1/7075 ,  H04B2001/70724 ,  H04B2201/70707 ,  H04B2201/70713 ,  H04B2201/70727

Abstract: A UE may store received samples of a wireless signal at cx1 to reduce memory usage, but then may correlate those samples with cx2 timing hypotheses to improve performance. The received sequence is resampled at cx2 instead of cx1. The UE still performs the correlation of the cx2 timing hypotheses for the performance gain, but the reference waveform is resampled with cx2 time offset. A Fast Fourier Transform (FFT) may be taken of the received and reference waveforms. In the frequency domain, resampling may be performed by multiplying the FFT of the reference waveform by a phase ramp—a pointwise multiplication in the frequency domain with a constant magnitude sequence whose phase varies linearly.

Abstract translation: UE可以以cx1存储无线信号的接收样本以减少存储器使用，但是然后可以将这些采样与cx2定时假设相关联以提高性能。 接收的序列在cx2而不是cx1重采样。 UE仍然执行cx2定时假设与性能增益的相关性，但参考波形用cx2时间偏移重采样。 可以对接收和参考波形进行快速傅里叶变换（FFT）。 在频域中，重采样可以通过将参考波形的FFT乘以频域中的相位斜坡 - 点相乘乘以其相位线性变化的恒定幅度序列来执行。

公开(公告)号：US09374129B2

公开(公告)日：2016-06-21

申请号：US14970255

申请日：2015-12-15

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC: H04W4/00 ,  H04B1/7083 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.