公开(公告)号：US07912092B2

公开(公告)日：2011-03-22

申请号：US11616651

申请日：2006-12-27

Applicant: John M. Kowalski

Inventor： John M. Kowalski

IPC: H04B3/10

CPC classification number: H04J11/00 ,  H04B2201/70701 ,  H04J13/18 ,  H04L5/0048

Abstract: A method for transmitting a transmission time interval signal in a cellular network is described. A multiplexed data signal is received. A demultiplexer is applied to the data signal. The data signal from the demultiplexer is encoded. A linear transform is applied to the data signal. A plurality of uplink transmission time interval signals, which include the data signal, are reformatted. The placement of one or more reference signals are staggered within each of the plurality of transmission time interval signals. Each of the plurality of uplink transmission time interval signals are transmitted.

Abstract translation: 描述了一种用于在蜂窝网络中发送传输时间间隔信号的方法。 接收复用的数据信号。 解复用器被应用于数据信号。 来自解复用器的数据信号被编码。 线性变换被应用于数据信号。 包括数据信号的多个上行链路传输时间间隔信号被重新格式化。 一个或多个参考信号的放置在多个传输时间间隔信号的每一个内交错。 发送多个上行链路传输时间间隔信号中的每一个。

公开(公告)号：US07876809B2

公开(公告)日：2011-01-25

申请号：US11816430

申请日：2006-02-16

Applicant: Masayoshi Ueno

Inventor： Masayoshi Ueno

IPC: H04B1/00

CPC classification number: H04B1/7113 ,  H04B1/709 ,  H04B2201/70701 ,  H04W52/16

Abstract: Upon receiving an instruction to open a radio link, a path management unit designates, for one radio link, a spreading code number for a common pilot channel and a spreading code number for an individual channel to a spreading code generator. The spreading code generator generates spreading codes for the respective channels and sends them to a correlator. The correlator outputs the correlation values between a reception signal (IQ signal), the common pilot channel, and the individual channel. A delay profile unit generates delay profiles concerning the common pilot channel and individual channel by in-phase-adding and power-adding correlation values from the correlator for each channel. The path management unit detects path timings from both the delay profiles concerning the common pilot channel and individual channel, and assigns path timings TM to finger units in descending order of reception power. This improves the stability of reception quality.

Abstract translation: 在接收到打开无线电链路的指令时，路径管理单元为一个无线电链路指定用于公共导频信道的扩展码号和用于各个信道的扩展码号到扩展码发生器。 扩展码发生器产生各个信道的扩展码并将它们发送到相关器。 相关器输出接收信号（IQ信号），公共导频信道和各个信道之间的相关值。 延迟分布单元通过对于每个信道的来自相关器的相位相加和相加值的相加值来产生关于公共导频信道和单个信道的延迟分布。 路径管理单元从关于公共导频信道和单独信道的延迟分布中检测路径定时，并且以接收功率的降序将路径定时TM分配给手指单元。 这提高了接收质量的稳定性。

公开(公告)号：US20110007777A1

公开(公告)日：2011-01-13

申请号：US12501053

申请日：2009-07-10

Applicant: Jacobus Cornelius Haartsen ,  William O. Camp, JR.

Inventor： Jacobus Cornelius Haartsen ,  William O. Camp, JR.

IPC: H04B1/69

CPC classification number: H04B1/69 ,  H04B2201/70701 ,  Y02D70/10 ,  Y02D70/14

Abstract: A spread spectrum system may include a transmitter and a receiver. The transmitter is configured to transmit a signal having at least one channel, where the signal may include a reference signal, an information signal and a frequency offset between the reference signal and the information signal. The receiver may receive the transmitted signal from the transmitter and mix the received signal in order to retrieve the information signal from the received signal. This allows the receiver to operate at low power (e.g., 10 uW-100 uW).

Abstract translation: 扩频系统可以包括发射机和接收机。 发射机被配置为发送具有至少一个信道的信号，其中信号可以包括参考信号，信息信号和参考信号与信息信号之间的频率偏移。 接收机可以从发射机接收发送的信号并混合接收到的信号，以从接收的信号中检索信息信号。 这允许接收器以低功率（例如，10uW-100uW）工作。

公开(公告)号：US07860064B2

公开(公告)日：2010-12-28

申请号：US11833037

申请日：2007-08-02

Applicant: Takaaki Kisigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Keiji Takausaki ,  Shoji Miyamoto

Inventor： Takaaki Kisigami ,  Takashi Fukagawa ,  Yasuaki Yuda ,  Keiji Takausaki ,  Shoji Miyamoto

IPC: H04B7/208

CPC classification number: H04B1/7113 ,  G01S3/74 ,  H04B1/7117 ,  H04B7/0617 ,  H04B7/086 ,  H04B2201/70701 ,  H04B2201/70715 ,  H04L1/06

Abstract: A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

Abstract translation: 具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。 因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度， 执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元， 合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

公开(公告)号：US07848393B2

公开(公告)日：2010-12-07

申请号：US12619966

申请日：2009-11-17

Applicant: Young-Joon Song

Inventor： Young-Joon Song

IPC: H04B1/00

CPC classification number: H04B1/7075 ,  H04B1/70755 ,  H04B1/709 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L7/041

Abstract: The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. This property can be used to slot-by-slot, double-check frame synchronization timing, single frame synchronization and/or channel estimation and allows reduction of the synchronization search time. Further, the present invention allows a simpler construction of a correlator circuit for a receiver. A frame synchronization apparatus and method using an optimal pilot pattern is used in a wide band code division multiple Access (W-CDMA) next generation mobile communication system.

Abstract translation: 实施例的帧字适用于帧同步和/或信道估计。 通过添加帧相关的自相关和/或互相关函数，获得在零和中间位移处的幅度相等和极性相反的双重最大值。 该属性可用于逐个插槽，双重检查帧同步定时，单帧同步和/或信道估计，并允许减少同步搜索时间。 此外，本发明允许用于接收机的相关器电路的更简单的构造。 在宽带码分多址（W-CDMA）下一代移动通信系统中使用使用最佳导频模式的帧同步装置和方法。

公开(公告)号：US20100284440A1

公开(公告)日：2010-11-11

申请号：US12755933

申请日：2010-04-07

Applicant: John W. BETZ ,  Christopher J. Hegarty ,  Joseph J. Rushanan

Inventor： John W. BETZ ,  Christopher J. Hegarty ,  Joseph J. Rushanan

IPC: H04B1/707

CPC classification number: G01S19/02 ,  H04B2201/70701 ,  H04B2201/709709

Abstract: Methods and systems for direct sequence spread spectrum (DSSS) signals are described herein. In an embodiment, a DSSS signal includes a time multiplexed spreading time series. The time multiplexed spreading time series includes a data spreading time series includes at least a first spreading symbol, and a pilot spreading time series includes at least a second spreading symbol and a third spreading symbol. The second spreading symbol and the third spreading symbol are different.

Abstract translation: 本文描述了用于直接序列扩频（DSSS）信号的方法和系统。 在一个实施例中，DSSS信号包括时间复用扩展时间序列。 时间复用扩展时间序列包括数据扩展时间序列至少包括第一扩展符号，并且导频扩展时间序列至少包括第二扩展符号和第三扩展符号。 第二扩展符号和第三扩展符号是不同的。

公开(公告)号：US20100278218A1

公开(公告)日：2010-11-04

申请号：US12435076

申请日：2009-05-04

Applicant: Yingqun Yu ,  Farrokh Abrishamkar ,  Divaydeep Sikri ,  Michael McCloud

Inventor： Yingqun Yu ,  Farrokh Abrishamkar ,  Divaydeep Sikri ,  Michael McCloud

IPC: H04B1/707 ,  H04B1/10

CPC classification number: H04B1/7107 ,  H04B1/71052 ,  H04B2201/70701

Abstract: Systems and methods for multi-user interference cancellation are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users and a detection unit configured to detect user symbols from the received symbols. The apparatus also comprises an interference cancellation unit configured to compute multi-user interference using the detected user symbols and to remove the computed multi-user interference from the received symbols. The apparatus further comprises a redetection unit configured to redetect user symbols from the received symbols with the computed multi-user interference removed.

Abstract translation: 提供了多用户干扰消除的系统和方法。 在本公开的一个方面，提供一种装置。 该装置包括：处理单元，被配置为将接收到的码片处理为多个用户的接收符号;以及检测单元，被配置为从接收的符号检测用户符号。 该装置还包括被配置为使用检测到的用户符号来计算多用户干扰并从所接收的符号中去除所计算的多用户干扰的干扰消除单元。 所述设备还包括重新检测单元，其被配置为从所接收的符号中重新检测用户符号，同时移除所计算的多用户干扰。

公开(公告)号：US20100278167A1

公开(公告)日：2010-11-04

申请号：US12435104

申请日：2009-05-04

Applicant: Yingqun Yu ,  Farrokh Abrishamkar

Inventor： Yingqun Yu ,  Farrokh Abrishamkar

IPC: H04B1/707 ,  H04B7/216

CPC classification number: H04L25/061 ,  H04B1/7103 ,  H04B2201/70701 ,  H04L25/0242 ,  H04L2025/0342

Abstract: Systems and methods for data-aided channel estimation are provided. In one aspect of the disclosure, a channel estimation apparatus is provided. The apparatus comprises a first processing unit configured to process received chips into received symbols and a detection unit configured to detect user symbols from the received symbols. The apparatus further comprises a second processing unit configured to process the detected user symbols into estimated transmit chips and a channel computation unit configured to estimate a channel based on the estimated transmit chips and the received chips.

Abstract translation: 提供了数据辅助信道估计的系统和方法。 在本公开的一个方面，提供了一种信道估计装置。 该装置包括：第一处理单元，被配置为将接收到的码片处理为接收符号;以及检测单元，被配置为从所接收的符号检测用户符号。 该装置还包括：第二处理单元，被配置为将检测到的用户符号处理为估计的发送码片;以及信道计算单元，被配置为基于估计的发送码片和接收的码片来估计信道。

公开(公告)号：US20100272155A1

公开(公告)日：2010-10-28

申请号：US12832778

申请日：2010-07-08

Applicant: Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

Inventor： Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

IPC: H04B1/38 ,  H04B1/707

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A code transmitted in a wireless format is to be detected. A power level associated with the code is determined. The determined power level is compared with a plurality of thresholds. A test statistic is increased or decreased based on which of the thresholds that the determined power level falls within. If the test statistic exceeds an acceptance threshold, the code is deemed acquired. If the test statistic is below a dismissal threshold, the code is deemed not present. If the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, the testing for the code is repeated.

Abstract translation: 要检测以无线格式发送的代码。 确定与代码相关联的功率级别。 将确定的功率电平与多个阈值进行比较。 基于所确定的功率水平在哪个阈值内增加或减少测试统计量。 如果测试统计数据超过接受阈值，则代码被视为已获得。 如果测试统计数据低于解雇阈值，则代码被视为不存在。 如果测试统计量不超过接受阈值，并且测试统计量不低于解雇阈值，则重复对代码的测试。

公开(公告)号：US07822107B2

公开(公告)日：2010-10-26

申请号：US11684038

申请日：2007-03-09

Applicant: Chung-Hsien Hsieh

Inventor： Chung-Hsien Hsieh

IPC: H04B1/00

CPC classification number: H04L25/0228 ,  H04B1/707 ,  H04B2201/70701 ,  H04L25/03006 ,  H04L2025/03375

Abstract: A spread spectrum receiver in a communication system compensating channel response, and the method thereof is disclosed. The spread spectrum receiver comprises a multiplier, a filter, a data channel correlator, a delay, and a channel compensator. The multiplier (322) multiplies despread pilots (320) with conjugate of pilot pattern (324) to provide channel estimates. The filter (323) filters the channel estimates from the multiplier (322). The data channel correlator (30) despreads data symbols in a data channel. The delay module (38), coupled to the data channel correlator (30), delays the despread data symbols for a period. The channel compensator (34), coupled to the filter (323) and the delay module (38), compensates the delayed despread data symbols with the filtered channel estimates.

Abstract translation: 在通信系统补偿信道响应中的扩频接收机及其方法被公开。 扩频接收机包括乘法器，滤波器，数据信道相关器，延迟和信道补偿器。 乘法器（322）将解扩频导频（320）与导频模式（324）的共轭相乘以提供信道估计。 滤波器（323）从乘法器（322）滤波信道估计。 数据信道相关器（30）解扩数据信道中的数据符号。 耦合到数据信道相关器（30）的延迟模块（38）延迟解扩数据符号一段时间。 耦合到滤波器（323）和延迟模块（38）的信道补偿器（34）用已滤波的信道估计来补偿延迟的解扩数据符号。