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1. 发明授权

US08401125B2 Receiving apparatus and method with no oversampling analog to digital conversion 失效
标题翻译：没有过采样模数转换的接收装置和方法
公开(公告)号：US08401125B2
公开(公告)日：2013-03-19
申请号：US12631070
申请日：2009-12-04
申请人： Zhaocheng Wang , Richard Stirling-Gallacher , Ralf Boehnke
发明人： Zhaocheng Wang , Richard Stirling-Gallacher , Ralf Boehnke
IPC分类号： H04L27/06 , H04L7/00
CPC分类号： H04L7/042
摘要： A receiving apparatus and a receiving method for receiving signals in a wireless communication system are presented, the signals including a dedicated channel estimation sequence. The apparatus includes an analog to digital converter that converts received signals into digital samples with a sampling rate identical to a symbol rate of the received signals, a channel estimation unit that performs a channel estimation based on the dedicated channel estimation sequence comprised in a digital samples of the received signals, an evaluation unit that evaluates the channel estimation result from the channel estimation unit, and a control unit that controls a phase of the sampling rate of the analog to digital converter based on an evaluation of the channel estimation result. The present invention further relates to a corresponding receiving method.
摘要翻译：提出了一种用于在无线通信系统中接收信号的接收装置和接收方法，所述信号包括专用信道估计序列。该装置包括模拟数字转换器，其以接收信号的符号率将接收到的信号转换为数字样本，信道估计单元，其基于包含在数字样本中的专用信道估计序列执行信道估计的评估单元，评估单元，其评估来自信道估计单元的信道估计结果;以及控制单元，其基于信道估计结果的评估来控制模数转换器的采样率的相位。本发明还涉及相应的接收方法。

2. 发明申请

US20120313809A1 SIGNAL PROCESSING UNIT AND METHOD 审中-公开
标题翻译：信号处理单元和方法
公开(公告)号：US20120313809A1
公开(公告)日：2012-12-13
申请号：US13489730
申请日：2012-06-06
申请人： Miquel TESTAR , Richard Stirling-Gallacher
发明人： Miquel TESTAR , Richard Stirling-Gallacher
IPC分类号： G01S13/08
CPC分类号： G01S7/292 , G01S3/74 , G01S7/021
摘要： A signal processing unit for accurately estimating from a time-domain signal at least one frequency and corresponding amplitude of at least one complex exponential is provided. The signal processing unit is configured to transform the time-domain signal into a frequency-domain signal, and to detect at least one peak frequency of the frequency-domain signal. The signal processing unit is further configured to determine at least one frequency band of interest corresponding to the at least one peak frequency, and to determine at least one signal-to-noise ratio corresponding to the at least one frequency band of interest. The signal processing unit is further configured to perform at least one subsequent time-domain processing step for accurately estimating the at least one frequency and corresponding amplitude of the at least one complex exponential using the at least one frequency band of interest and/or the at least one signal-to-noise ratio.
摘要翻译：一种用于从时域信号精确估计至少一个频率和至少一个复指数的对应振幅的信号处理单元。信号处理单元被配置为将时域信号变换为频域信号，并且检测频域信号的至少一个峰值频率。所述信号处理单元还被配置为确定与所述至少一个峰值频率相对应的至少一个感兴趣频带，并且确定与所述至少一个感兴趣频带对应的至少一个信噪比。所述信号处理单元还被配置为执行至少一个后续时域处理步骤，用于使用所述至少一个感兴趣频带和/或所述至少一个频带精确地估计所述至少一个复指数的所述至少一个频率和对应幅度至少一个信噪比。

3. 发明申请

US20110182378A1 PILOT PATTERN DESIGN FOR A STTD SCHEME IN AN OFDM SYSTEM 有权
标题翻译：用于OFDM系统中的STTD方案的引导模式设计
公开(公告)号：US20110182378A1
公开(公告)日：2011-07-28
申请号：US13084302
申请日：2011-04-11
申请人： Zhaocheng Wang , Richard Stirling-Gallacher
发明人： Zhaocheng Wang , Richard Stirling-Gallacher
IPC分类号： H04J11/00 , H04B7/02
CPC分类号： H04L27/2613 , H04B7/0669 , H04L1/0618 , H04L1/0625 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2601 , H04L27/2626
摘要： A transmitting device for transmitting data and pilot symbols in an OFDM transmission system having transmission antennas. The device includes symbol generating means for generating data and pilot symbols, means for transmitting the data and pilot symbols using subcarriers of the OFDM system. The symbol generating means generates a first and second type pilot symbol, the second having an inverted value of the first so that a first pilot symbol pattern to be transmitted by using one of said plurality of transmission antennas has a different pattern in the frequency and time dimension from a second pilot symbol pattern to be transmitted by using another transmission antenna. First and second pilot symbols are comprised in respective first and second pilot symbol patterns, where at least some of the first and second pilot symbols have the same time allocation and being alternately identical and inverted to each other.
摘要翻译：一种发送装置，用于在具有发送天线的OFDM传输系统中发送数据和导频符号。该装置包括用于产生数据和导频符号的符号产生装置，用于使用OFDM系统的子载波发送数据和导频符号的装置。符号产生装置产生第一和第二类型导频符号，第二类型具有第一类型的导频符号，其中第二导频符号具有第一类型的反相值，使得通过使用所述多个发射天线之一发射的第一导频符号模式在频率和时间上具有不同的模式从第二导频符号图案的尺寸，通过使用另一发送天线发送。第一和第二导频符号包括在相应的第一和第二导频符号模式中，其中第一和第二导频符号中的至少一些具有相同的时间分配并且彼此交替地相同并且相反。

4. 发明授权

US07664009B2 Pilot pattern design for a STTD scheme in an OFDM system 有权
标题翻译： OFDM系统中STTD方案的导频模式设计
公开(公告)号：US07664009B2
公开(公告)日：2010-02-16
申请号：US11608685
申请日：2006-12-08
申请人： Zhaocheng Wang , Richard Stirling-Gallacher
发明人： Zhaocheng Wang , Richard Stirling-Gallacher
IPC分类号： H04J11/00 , H04J4/00
CPC分类号： H04L27/2613 , H04B7/0669 , H04L1/0618 , H04L1/0625 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2601 , H04L27/2626
摘要： The present invention relates to a transmitting device and a receiving device in a wireless orthogonal frequency division multiplex (OFDM) communication system with space time transmit diversity (STTD). Further, the present invention relates to a channel estimation method for performing a channel estimation in such a wireless communication system, in which the transmitting device comprises a first and a second antenna for transmitting signals with space time transmit diversity. The first and the second antenna means are arranged spaced apart from each other in a space diversity arrangement, whereby first and second pilot symbols are transmitted via said first and said second antenna mean, respectively. Some of the second pilot symbols are orthogonal to corresponding ones of the first pilot symbols, so that a channel estimation to separately determine the transmission quality of signals transmitted from the first and the second antenna means, respectively, can be performed in a receiving device which receives the signals with only one single antenna.
摘要翻译：本发明涉及具有时空发射分集（STTD）的无线正交频分复用（OFDM）通信系统中的发送装置和接收装置。此外，本发明涉及一种用于在这种无线通信系统中执行信道估计的信道估计方法，其中发送设备包括用于发送具有空时传输分集的信号的第一和第二天线。第一和第二天线装置在空间分集装置中彼此间隔布置，由此分别经由所述第一和第二天线平均值发送第一和第二导频符号。第二导频符号中的一些与第一导频符号中的相应导频符号正交，从而可以在接收装置中执行分别确定从第一和第二天线装置发送的信号的传输质量的信道估计，只用一个天线接收信号。

5. 发明授权

US07646700B2 Pilot pattern design for an OFDM system 有权
标题翻译： OFDM系统的导频模式设计
公开(公告)号：US07646700B2
公开(公告)日：2010-01-12
申请号：US11338644
申请日：2006-01-25
申请人： Zhaocheng Wang , Richard Stirling-Gallacher
发明人： Zhaocheng Wang , Richard Stirling-Gallacher
IPC分类号： H04J11/00 , H04J4/00
CPC分类号： H04L27/2613 , H04B7/0669 , H04L1/0618 , H04L1/0625 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2601 , H04L27/2626
摘要： A transmitting device for transmitting data symbols and pilot symbols in an OFDM transmission system; the device comprising symbol generating means for generating said data symbols and said pilot symbols, means for transmitting said data symbols and pilot symbols respectively by using a plurality of subcarriers of said OFDM transmission system, wherein said symbol generating means is designed to selectively generate a first type pilot symbol and a second type pilot symbol being orthogonal to said first type pilot symbol so that a pilot symbol pattern in the frequency dimension comprises at least said first type pilot symbol to be transmitted by using a predefined subcarrier and second type pilot symbol to be transmitted by using other predefined subcarrier, and wherein said pilot symbol pattern has a different pattern from a succeeding pilot symbol pattern in time dimension.
摘要翻译：一种发送装置，用于在OFDM传输系统中发送数据符号和导频符号; 所述装置包括用于产生所述数据符号和所述导频符号的符号产生装置，用于分别通过使用所述OFDM传输系统的多个子载波来发送所述数据符号和导频符号的装置，其中所述符号产生装置被设计成选择性地产生第一类型导频符号和与所述第一类型导频符号正交的第二类型导频符号，使得频率维度中的导频符号模式至少包括要通过使用预定义子载波和第二类型导频符号来发送的所述第一类型导频符号通过使用其它预定义的子载波来发送，并且其中所述导频符号模式具有与时间维度中的后续导频符号模式不同的模式。

6. 发明申请

US20090323795A1 EQUALIZING STRUCTURE AND EQUALIZING METHOD 失效
标题翻译：均衡结构和均衡方法
公开(公告)号：US20090323795A1
公开(公告)日：2009-12-31
申请号：US12375844
申请日：2007-07-03
申请人： Richard Stirling-Gallacher
发明人： Richard Stirling-Gallacher
IPC分类号： H04L25/03 , H04L25/08
CPC分类号： H04L25/03331 , H04L25/0204 , H04L25/03191 , H04L25/03292 , H04L25/03305 , H04L25/03318 , H04L27/2647 , H04L2025/03426
摘要： An equalizing structure and method for a wireless communication system receiving device, in which two or more transmit signals transmitted in parallel from one or more transmitters are received in received signal vectors representing two or more received data streams, the signals including information modulated onto carrier signals according to a modulation scheme, all possible transmit signals being represented by candidate constellation values in the signal constellation of the modulation scheme. A processor calculates an estimate for a constellation value of a received signal and determines a number of candidate constellation values in the vicinity of the estimated constellation value in the signal constellation. A metric value calculator calculates metric values based on the received signal vectors and the product of channel estimation values with candidate signal vectors, each candidate signal vector including a candidate constellation value for each of the two or more transmit signals, wherein the metric values are calculated for each constellation value of the number of candidate constellation values and the estimated constellation value. A maximum likelihood detector detects one of the candidate signal vectors having a minimum Euclidean distance to a respective receive signal vector as a most likely transmit signal vector based on the metric values.
摘要翻译：一种用于无线通信系统接收设备的均衡结构和方法，其中从表示两个或多个接收的数据流的接收信号向量中接收从一个或多个发射机并行发送的两个或多个发射信号，所述信号包括调制到载波信号上的信息根据调制方案，所有可能的发射信号由调制方案的信号星座中的候选星座值表示。处理器计算接收信号的星座值的估计，并且确定信号星座图中估计星座值附近的候选星座值的数量。度量值计算器基于接收的信号向量和信道估计值与候选信号向量的乘积来计算度量值，每个候选信号向量包括用于两个或更多个发射信号中的每一个的候选星座值，其中度量值被计算对于候选星座值的数量和估计的星座值的每个星座值。最大似然检测器基于度量值检测具有到相应接收信号向量的最小欧几里德距离的候选信号向量中的一个作为最可能的发射信号向量。

7. 发明申请

US20090041141A1 PILOT PATTERN DESIGN FOR AN OFDM SYSTEM 有权
标题翻译：用于OFDM系统的PILOT模式设计
公开(公告)号：US20090041141A1
公开(公告)日：2009-02-12
申请号：US12250295
申请日：2008-10-13
申请人： ZHAOCHENG WANG , Richard Stirling-Gallacher
发明人： ZHAOCHENG WANG , Richard Stirling-Gallacher
IPC分类号： H04J11/00 , H04L27/28
CPC分类号： H04L27/2613 , H04B7/0669 , H04L1/0618 , H04L1/0625 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2601 , H04L27/2626
摘要： The present invention relates to a transmitting device and a receiving device in a wireless orthogonal frequency division multiplex (OFDM) communication system with space time transmit diversity (STTD). Further, the present invention relates to a channel estimation method for performing a channel estimation in such a wireless communication system, in which the transmitting device comprises a first and a second antenna for transmitting signals with space time transmit diversity. The first and the second antenna means are arranged spaced apart from each other in a space diversity arrangement, whereby first and second pilot symbols are transmitted via said first and said second antenna means, respectively. Some of the second pilot symbols are orthogonal to corresponding ones of the first pilot symbols, so that a channel estimation to separately determine the transmission quality of signals transmitted from the first and the second antenna means, respectively, can be performed in a receiving device which receives the signals with only one single antenna.
摘要翻译：本发明涉及具有时空发射分集（STTD）的无线正交频分复用（OFDM）通信系统中的发送装置和接收装置。此外，本发明涉及一种用于在这种无线通信系统中执行信道估计的信道估计方法，其中发送设备包括用于发送具有空时传输分集的信号的第一和第二天线。第一和第二天线装置在空间分集装置中彼此间隔开排列，从而分别经由所述第一和第二天线装置传送第一和第二导频符号。第二导频符号中的一些与第一导频符号中的相应导频符号正交，从而可以在接收装置中执行分别确定从第一和第二天线装置发送的信号的传输质量的信道估计，只用一个天线接收信号。

8. 发明授权

US07327796B1 SOVA turbo decoder with decreased normalisation complexity 失效
标题翻译： SOVA turbo解码器具有降低的归一化复杂度
公开(公告)号：US07327796B1
公开(公告)日：2008-02-05
申请号：US09692927
申请日：2000-10-20
申请人： Richard Stirling-Gallacher
发明人： Richard Stirling-Gallacher
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H03M13/658 , H03M13/2957 , H03M13/4146
摘要： To obtain best performance from a turbo decoder using a SOVA algorithm a normalization unit is used. By using normalization, the complexity of the decoder is increased. To decrease the complexity it is proposed not to normalize all of the decoding units output. In this way, computational complexity is reduced with only a small degradation in performance.
摘要翻译：为了使用SOVA算法从turbo解码器获得最佳性能，使用归一化单元。通过使用归一化，解码器的复杂度增加。为了降低复杂度，建议不对所有解码单元输出进行归一化。以这种方式，计算复杂度降低，性能只有很小的降低。

9. 发明授权

US07103060B2 Event triggered change of access service class in a random access channel 有权
标题翻译：事件触发随机接入信道中接入业务类的改变
公开(公告)号：US07103060B2
公开(公告)日：2006-09-05
申请号：US09824968
申请日：2001-04-03
申请人： Stefan Kornprobst , Jens-Uwe Jürgensen , Richard Stirling-Gallacher
发明人： Stefan Kornprobst , Jens-Uwe Jürgensen , Richard Stirling-Gallacher
IPC分类号： H04J3/16
CPC分类号： H04W74/0875 , H04L47/14 , H04L47/24 , H04W84/042
摘要： The present invention relates to a communication device (1) for transmitting and receiving data in a communication system and a corresponding communication method. In the communication system, which can be a wireless or a wired communication system, a random access channel is provided, which comprises a plurality of access resources. The access resources are divided in at least two access resource groups, each access resource groups corresponding to a different access service class with a respective access probability. The communication device (1) according to the present invention, comprises selecting means (5) for randomly selecting an access resource from an access resource group corresponding to the current access service class of the communication device (1), transmitting means (3) for transmitting a random access burst in said selected access resource and detecting means (6) for detecting a specific event, whereby the current access service class of the communication device (1) is changed into another access service class when said specific event is detected by the detecting means (6).The present invention proposes a simple and flexible scheme for the adaptation of the performance of a communication device (1) in the random access procedure in the case of certain events.
摘要翻译：本发明涉及一种用于在通信系统中发送和接收数据的通信设备（1）和相应的通信方法。在可以是无线或有线通信系统的通信系统中，提供包括多个接入资源的随机接入信道。访问资源在至少两个访问资源组中被划分，每个访问资源组对应于具有相应访问概率的不同的访问服务类。根据本发明的通信设备（1）包括：从与通信设备（1）的当前接入服务类别相对应的接入资源组中随机选择接入资源的选择装置（5），用于在所述选择的接入资源中发送随机接入脉冲串和检测装置（6），用于检测特定事件，由此当通过所述特定事件检测到所述特定事件时，通信装置（1）的当前接入服务等级被改变为另一接入业务类别检测装置（6）。本发明提出了一种用于在某些事件的情况下在随机接入过程中适配通信设备（1）的性能的简单且灵活的方案。

10. 发明授权

US06570889B1 Transmitter and transmitting method increasing the flexibility of code assignment 有权
标题翻译：发送器和发送方法增加了代码分配的灵活性
公开(公告)号：US06570889B1
公开(公告)日：2003-05-27
申请号：US09270601
申请日：1999-03-17
申请人： Richard Stirling-Gallacher , Jens-Uwe Jürgensen
发明人： Richard Stirling-Gallacher , Jens-Uwe Jürgensen
IPC分类号： H04J1300
CPC分类号： H04J13/004 , H04B1/707 , H04B7/2628 , H04L25/03866
摘要： According to the present invention a transmitter and a transmitting method for communicating data symbols over a communication channel, for example, according to the CDMA system is presented. The transmitter (24, 25) comprises means (9) for spreading each data symbol with a respective spreading code, wherein the spreading codes are mutually orthogonal. Means (10) for scrambling are provided to scramble each spread symbol with a respective scrambling code, the scrambling codes respectively having the same length as the spreading codes. Furthermore, means (11) for the transmission of the spread and scrambled symbols are provided. According to the present invention the means (10) for scrambling are provided with a plurality of different scrambling codes, which can be used simultaneously within the same link.
摘要翻译：根据本发明，提供了一种用于例如根据CDMA系统在通信信道上传送数据符号的发送器和发送方法。发射机（24,25）包括用于以各自的扩展码扩展每个数据符号的装置（9），其中扩展码是相互正交的。提供用于加扰的装置（10），用各自的扰频码对每个扩展符号进行加扰，扰码分别具有与扩展码相同的长度。此外，提供了用于传输扩展和加扰符号的装置（11）。根据本发明，用于加扰的装置（10）具有多个不同的扰码，可以在同一链路内同时使用。

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