公开(公告)号：AT475227T

公开(公告)日：2010-08-15

申请号：AT05757704

申请日：2005-06-06

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  BAUM KEVIN ,  HAYASHI HIROSHI ,  NANGIA VIJAY

IPC: H04B1/69

Abstract: Frequency hopping in an IFDMA system takes place by utilizing a time-varying IFDMA modulation code. In particular, a modulator receives a symbol stream and a user specific IFDMA modulation code (bi(t)). The output of the modulator comprises a signal (xi(t)) existing at certain frequencies, or subcarriers. The actual subcarriers that signal xi(t) utilizes is dependent upon the repetition of the symbol blocks and the particular IFDMA modulation code utilized.

公开(公告)号：BRPI0707600A2

公开(公告)日：2011-05-10

申请号：BRPI0707600

申请日：2007-01-27

Applicant: MOTOROLA INC

Inventor： AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

IPC: H04J11/00

Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

公开(公告)号：BRPI0717948A2

公开(公告)日：2013-12-03

申请号：BRPI0717948

申请日：2007-10-23

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  AKITA HIDENORI

IPC: H04B1/707 ,  H04J13/00 ,  H04L27/26

Abstract: A method and apparatus for transmitting a primary and secondary synchronization channel is provided herein. During operation a transmitter will transmit a primary synchronization channel (P-SCH) in a subframe and a secondary synchronization channel (S-SCH) in the subframe. The S-SCH is modulated by a complex exponential wave and scrambled with a scrambling code. In certain embodiments of the present invention the P-SCH comprises a GCL sequence or a Zadoff-Chu sequence and the scrambling code is based on the GCL sequence index of the P-SCH.

公开(公告)号：AR060941A1

公开(公告)日：2008-07-23

申请号：ARP070102097

申请日：2007-05-15

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  AKITA HIDENORI ,  HAYASHI HIROSHI

IPC: H04Q7/22 ,  H04B1/38

Abstract: Se construyen secuencias de referencia a partir de ôclasesö diferenciadas de secuencias GCL que tienen una propiedad optima de correlacion cruzada cíclica. El método de la busqueda veloz de celda expuesto detecta los ôíndices de claseö con procesamiento simple. En un despliegue del sistema que correlaciona de modo unico las secuencias de ciertos índices de clase junto con una cantidad de desplazamiento circular en el dominio de tiempo con ciertas celdas y ciertas ID de celdas, la identificacion de un índice de secuencia y su desplazamiento circular proveen por lo tanto una identificacion de ID de celda.

公开(公告)号：BRPI0707532A2

公开(公告)日：2011-05-03

申请号：BRPI0707532

申请日：2007-01-27

Applicant: MOTOROLA INC

Inventor： AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

IPC: H04J11/00

Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection by differential processing of sequence elements of the synchronization channel signal (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

公开(公告)号：DE602005022447D1

公开(公告)日：2010-09-02

申请号：DE602005022447

申请日：2005-06-06

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  BAUM KEVIN L ,  HAYASHI HIROSHI ,  NANGIA VIJAY

IPC: H04B1/69

公开(公告)号：AR063590A1

公开(公告)日：2009-02-04

申请号：ARP070104947

申请日：2007-11-06

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  AKITA HIDENORI

IPC: H04J13/00 ,  H04B7/005

Abstract: Se provee un método y un aparato para transmitir un canal de sincronización primario y secundario. Durante la operación, un transmisor transmite un canal de sincronización primario (P-SCH) en un submarco y un canal de sincronización secundario (S- SCH) en el submarco. El S-SCH es modulado por una onda exponencial compleja y objeto de scramble con un código de scramble. En ciertas formas de realización de la presente, el P-SCH comprende una secuencia GCL o una secuencia Zadoff-Chu y el código de scramble se basa en el índice de la secuencia GCL del P-SCH.

公开(公告)号：EP1889392A4

公开(公告)日：2010-05-05

申请号：EP06751981

申请日：2006-05-01

Applicant: MOTOROLA INC

Inventor： FUKUTA MASAYA ,  HAYASHI HIROSHI ,  BAUM KEVIN LYNN ,  NANGIA VIJAY

IPC: H04K1/10 ,  H04B7/208 ,  H04J11/00 ,  H04L5/00 ,  H04Q11/02

CPC classification number: H04L5/0007 ,  H04L5/0016 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/008 ,  H04L5/0087

公开(公告)号：WO2008057752B1

公开(公告)日：2008-11-13

申请号：PCT/US2007082190

申请日：2007-10-23

Applicant: MOTOROLA INC ,  FUKUTA MASAYA ,  AKITA HIDENORI

Inventor： FUKUTA MASAYA ,  AKITA HIDENORI

IPC: H04J13/00 ,  H04L27/26

CPC classification number: H04L27/2613 ,  H04J11/0069 ,  H04J13/0062 ,  H04J13/0066 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2655 ,  H04L27/2675

Abstract: A method and apparatus for transmitting a primary and secondary synchronization channel is provided herein. During operation a transmitter will transmit a primary synchronization channel (P-SCH) in a subframe and a secondary synchronization channel (S-SCH) in the subframe. The S-SCH is modulated by a complex exponential wave and scrambled with a scrambling code. In certain embodiments of the present invention the P-SCH comprises a GCL sequence or a Zadoff-Chu sequence and the scrambling code is based on the GCL sequence index of the P-SCH.

Abstract translation: 本文提供了用于传输主同步信道和辅同步信道的方法和设备。 在操作期间，发射机将在子帧中发送主同步信道（P-SCH），并在子帧中发送辅同步信道（S-SCH）。 S-SCH由复指数波调制并用扰码进行扰码。 在本发明的某些实施例中，P-SCH包括GCL序列或Zadoff-Chu序列，并且扰码基于P-SCH的GCL序列索引。

公开(公告)号：WO2007092692A2

公开(公告)日：2007-08-16

申请号：PCT/US2007061179

申请日：2007-01-27

Applicant: MOTOROLA INC ,  AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

Inventor： AKITA HIDENORI ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  FUKUTA MASAYA ,  HAYASHI HIROSHI ,  NANGIA VIJAY ,  LOVE ROBERT T ,  STEWART KENNETH A

CPC classification number: H04W48/16 ,  H04J11/0073 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/266 ,  H04L27/2663

Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816) and including information for providing at least partial cell identification information (812). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

Abstract translation: 提供了一种用于发送包括在OFDMA信号（818）的带宽的局部部分内发送的同步信道信号的正交频域多址（OFDMA）信号的方法和装置，所述同步信道信号具有在 带宽的局部部分（816）并且包括用于提供至少部分小区识别信息的信息（812）。 同步信道信号支持在支持多个系统带宽的OFDMA系统中提供OFDMA符号定时检测和频率误差检测（1112）和帧边界检测和小区特定信息检测（1114）的具有低计算负荷的初始采集和小区搜索方法， 同步和非同步的系统，大的信元索引和具有短和长循环前缀长度的OFDMA符号结构。