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61. 发明申请

US20110249548A1 EFFICIENT ZADOFF-CHU SEQUENCE GENERATION 有权
标题翻译：有效的ZADOFF-CHU序列生成
公开(公告)号：US20110249548A1
公开(公告)日：2011-10-13
申请号：US12755998
申请日：2010-04-07
申请人： Peter Gaal , Robert J. Fuchs , Yongbin Wei , Ke Liu , Hanfang Pan , Durga Prasad Malladi , Daniel T. Macek
发明人： Peter Gaal , Robert J. Fuchs , Yongbin Wei , Ke Liu , Hanfang Pan , Durga Prasad Malladi , Daniel T. Macek
IPC分类号： H04J11/00 , H04L27/28
CPC分类号： H04J13/0059 , H04J13/14
摘要： Efficient apparatus and method for Zadoff-Chu (“Chu”) sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than N log 2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.
摘要翻译：用于Zadoff-Chu（“Chu”）序列生成的高效装置和方法避免了传统二次生成公式的附加处理和硬件复杂性，随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换（DFT）。在无线通信系统（例如，长期演进（Long Term Evolution，LTE）系统）中，尤其在上行链路（UL）中广泛使用了Chu序列。由于单载波操作模式，原则上发送Chu序列涉及一系列生成该序列，执行DFT操作，然后进行IFFT操作。假设序列长度为N，则初始序列生成需要2N次乘法，并且DFT需要多于N个log 2（N）乘法。鉴于Chu序列的频繁处理，这将代表一个复杂的负担。除了可能计算某些初始参数之外，本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。

62. 发明授权

US07821917B2 Method and apparatus for data and pilot structures supporting equalization 有权
标题翻译：支持均衡的数据和导频结构的方法和装置
公开(公告)号：US07821917B2
公开(公告)日：2010-10-26
申请号：US12432245
申请日：2009-04-29
申请人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
发明人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
IPC分类号： H04J11/00
CPC分类号： H04L25/03159 , H04B2201/70701 , H04L25/0204 , H04L25/0224 , H04L25/03012 , H04L27/2602 , H04L27/2607 , H04L27/261 , H04L2025/03414 , H04W48/08 , H04W52/58 , H04W72/00 , H04W74/04
摘要： Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.
摘要翻译：描述了以便于在接收机处均衡的方式发送数据的技术。保护间隔被附加到数据块，使得每个数据块在数据块的开始处具有保护间隔，并且在数据块的末尾具有保护间隔。每个保护间隔可以是不连续传输（DTX），多相序列或一些其他已知序列。导频被附加到每组至少一个数据块。数据块，导频和保护间隔可以使用各种时隙结构发送，并被处理以进行传输。该处理可以包括将数据块映射到至少一个物理信道，通过信道化码信道化每个物理信道的数据块，组合所有物理信道，以及用加扰码对组合的数据，导频和保护间隔进行加扰。

63. 发明申请

US20090323666A1 METHOD AND APPARATUS FOR DATA AND PILOT STRUCTURES SUPPORTING EQUALIZATION 有权
标题翻译：数据和引导结构的方法和装置支持均衡
公开(公告)号：US20090323666A1
公开(公告)日：2009-12-31
申请号：US12432245
申请日：2009-04-29
申请人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
发明人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
IPC分类号： H04J3/04 , H04J3/00
CPC分类号： H04L25/03159 , H04B2201/70701 , H04L25/0204 , H04L25/0224 , H04L25/03012 , H04L27/2602 , H04L27/2607 , H04L27/261 , H04L2025/03414 , H04W48/08 , H04W52/58 , H04W72/00 , H04W74/04
摘要： Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.
摘要翻译：描述了以便于在接收机处均衡的方式发送数据的技术。保护间隔被附加到数据块，使得每个数据块在数据块的开始处具有保护间隔，并且在数据块的末尾具有保护间隔。每个保护间隔可以是不连续传输（DTX），多相序列或一些其他已知序列。导频被附加到每组至少一个数据块。数据块，导频和保护间隔可以使用各种时隙结构发送，并被处理以进行传输。该处理可以包括将数据块映射到至少一个物理信道，通过信道化码信道化每个物理信道的数据块，组合所有物理信道，以及用加扰码对组合的数据，导频和保护间隔进行加扰。

64. 发明申请

US20090049359A1 CIRCULAR BUFFER BASED RATE MATCHING 有权
标题翻译：基于循环缓冲器的速率匹配
公开(公告)号：US20090049359A1
公开(公告)日：2009-02-19
申请号：US12055195
申请日：2008-03-25
申请人： Durga Prasad Malladi , Juan Montojo , Yongbin Wei
发明人： Durga Prasad Malladi , Juan Montojo , Yongbin Wei
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04L1/0013 , H04L1/0066 , H04L1/0067 , H04L1/0071 , H04L1/1812
摘要： Systems and methodologies are described that facilitate employing circular buffer based rate matching. Encoded block(s) that include systematic, parity 1, and parity 2 bits can be generated using turbo code. Bit type can be identified to separate bits into distinct groups. Systematic bits can be interleaved together to generate a randomized sequence of systematic bits, parity 1 bits can be interleaved together to yield a randomized sequence of parity 1 bits, and parity 2 bits can be interleaved together to output a randomized sequence of parity 2 bits. The randomized sequences of parity 1 bits and parity 2 bits can be interlaced together in an alternating manner. The randomized sequence of systematic bits can be inserted into a circular buffer, and upon inserting the entire sequence, the interlaced parity bits can be inserted into the circular buffer (e.g., until reaching capacity). Bits inserted into the circular buffer are transmitted.
摘要翻译：描述了便于采用基于循环缓冲器的速率匹配的系统和方法。可以使用turbo码生成包括系统，奇偶校验1和奇偶校验位2的编码块。可以识别位类型以将位分成不同的组。系统比特可以交织在一起以产生随机化的系统比特序列，奇偶校验1比特可以交织在一起以产生奇偶校验1比特的随机化序列，并且奇偶校验2比特可以交织在一起以输出奇偶校验2比特的随机序列。奇偶校验1比特和奇偶校验2比特的随机序列可以以交替方式交织在一起。系统比特的随机序列可以被插入到循环缓冲器中，并且在插入整个序列时，可将隔行扫描奇偶校验位插入到循环缓冲器中（例如直到达到容量）。插入到循环缓冲器中的位被传送。

65. 发明授权

US08855064B2 Bundled frequency division multiplexing structure in wireless communications 有权
标题翻译：无线通信中捆绑的频分复用结构
公开(公告)号：US08855064B2
公开(公告)日：2014-10-07
申请号：US13004614
申请日：2011-01-11
申请人： Durga Prasad Malladi , Hao Xu , Yongbin Wei
发明人： Durga Prasad Malladi , Hao Xu , Yongbin Wei
IPC分类号： H04W4/00 , H04W72/04 , H04L5/00
CPC分类号： H04W72/0446 , H04L5/003 , H04W72/042 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/22 , Y02D70/23
摘要： Methods and apparatuses are provided that facilitate allocating a portion of a resource block to a power-limited device for communicating therewith. The power-limited device may not be capable of transmitting over an entire resource block due to power limitations; thus, a portion of the resource block can be assigned thereto, allowing for allocating at least a different portion of the resource block to at least one different device to optimize communications over the resource block. In addition, the portion of the resource block can be allocated across one or more bundled time transmit intervals (TTI) to allow for effective communication of time-sensitive data, such as voice over internet protocol (VoIP).
摘要翻译：提供的方法和装置有助于将资源块的一部分分配给功率受限设备以与之通信。由于功率限制，功率受限设备可能不能在整个资源块上传输; 因此，资源块的一部分可以被分配给它，允许将资源块的至少不同部分分配给至少一个不同的设备以优化资源块上的通信。此外，可以通过一个或多个捆绑的时间发送间隔（TTI）来分配资源块的部分，以允许诸如网络协议（VoIP）之类的时间敏感数据的有效通信。

66. 发明授权

US08422544B2 Communication receiver with an adaptive equalizer 有权
标题翻译：具有自适应均衡器的通信接收机
公开(公告)号：US08422544B2
公开(公告)日：2013-04-16
申请号：US11856678
申请日：2007-09-17
申请人： Yongbin Wei , Durga Prasad Malladi , Josef Blanz
发明人： Yongbin Wei , Durga Prasad Malladi , Josef Blanz
IPC分类号： H03H7/30
CPC分类号： H04B1/7105 , H04B2201/70701 , H04L25/0228 , H04L25/03044 , H04L2025/03509 , H04L2025/03522 , H04L2025/03598 , H04L2025/03617
摘要： In a wireless communication system, a method for estimating a transmitted signal is disclosed. A wireless signal is received that includes a pilot channel and at least one other channel. A transmitted signal is estimated using an equalizer and the received wireless signal. The equalizer includes a filter with a plurality of taps that are adapted through use of an adaptive algorithm that uses an estimated pilot estimated from the received wireless signal. The pilot channel is transmitted in the wireless signal that included the at least one other channel. The estimated pilot is extracted and provided to the adaptive algorithm.
摘要翻译：在无线通信系统中，公开了一种用于估计发送信号的方法。接收包括导频信道和至少一个其它信道的无线信号。使用均衡器和接收到的无线信号来估计发送信号。均衡器包括具有多个抽头的滤波器，其通过使用自适应算法来适配，所述自适应算法使用从所接收的无线信号估计的估计导频。在包括至少一个其他信道的无线信号中发送导频信道。估计的导频被提取并提供给自适应算法。

67. 发明授权

US08374072B2 Efficient zadoff-chu sequence generation 有权
标题翻译：高效的zadoff-chu序列生成
公开(公告)号：US08374072B2
公开(公告)日：2013-02-12
申请号：US12755998
申请日：2010-04-07
申请人： Peter Gaal , Robert J. Fuchs , Yongbin Wei , Ke Liu , Hanfang Pan , Durga Prasad Malladi , Daniel T. Macek
发明人： Peter Gaal , Robert J. Fuchs , Yongbin Wei , Ke Liu , Hanfang Pan , Durga Prasad Malladi , Daniel T. Macek
IPC分类号： H04J11/00 , H04W4/00
CPC分类号： H04J13/0059 , H04J13/14
摘要： Efficient apparatus and method for Zadoff-Chu (“Chu”) sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than N log 2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.
摘要翻译：用于Zadoff-Chu（Chu）序列生成的高效装置和方法避免了常规二次生成公式的附加处理和硬件复杂性，随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换（DFT）。在无线通信系统（例如，长期演进（Long Term Evolution，LTE）系统）中，尤其在上行链路（UL）中广泛使用了Chu序列。由于单载波操作模式，原则上发送Chu序列涉及一系列生成该序列，执行DFT操作，然后进行IFFT操作。假设序列长度为N，则初始序列生成需要2N次乘法，并且DFT需要多于N个log 2（N）乘法。鉴于Chu序列的频繁处理，这将代表一个复杂的负担。除了可能计算某些初始参数之外，本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。

68. 发明申请

US20110255431A1 COORDINATED SILENT PERIOD WITH SOUNDING REFERENCE SIGNAL (SRS) CONFIGURATION 有权
标题翻译：协调沉默期与声音参考信号（SRS）配置
公开(公告)号：US20110255431A1
公开(公告)日：2011-10-20
申请号：US13084169
申请日：2011-04-11
申请人： Ranqiu Wang , Durga Prasad Malladi , Hao Xu , Naga Bhushan , Yongbin Wei
发明人： Ranqiu Wang , Durga Prasad Malladi , Hao Xu , Naga Bhushan , Yongbin Wei
IPC分类号： H04W52/24 , H04W24/10
CPC分类号： H04J11/005 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0073 , H04L27/2613
摘要： A method of wireless communication includes configuring a virtual SRS (sounding reference signal) transmission to prompt a user equipment (UE) to use a shortened uplink transmission format to create a silent period at an end of a subframe. Reports are received from the UE indicating interference observed during the silent period.
摘要翻译：一种无线通信方法包括配置虚拟SRS（探测参考信号）传输，以提示用户设备（UE）使用缩短的上行链路传输格式在子帧结束时创建无声时段。从UE接收到指示在静默期间观察到的干扰的报告。

69. 发明授权

US08019032B2 Method and system for channel equalization 有权
标题翻译：信道均衡的方法和系统
公开(公告)号：US08019032B2
公开(公告)日：2011-09-13
申请号：US11293527
申请日：2005-12-02
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Yongbin Wei
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Yongbin Wei
IPC分类号： H04B1/10
CPC分类号： H04L25/03006 , H04L25/022 , H04L25/0228 , H04L2025/03375 , H04L2025/03783
摘要： One embodiment includes a method of receiving a transmitted signal. The method comprises receiving a signal transmitted over a channel. The signal comprises a known signal and an information signal. The method further includes determining at least one indicator of channel characteristics based at least in part on the portion of the known signal. The method further includes generating a first value indicative of the information signal based at least in part on the at least one indicator of the channel characteristics. The first value comprises an error signal. The method further comprises removing the error signal from the first estimate of the signal based at least in part on the portion of the known signal. Other embodiments include systems for performing the method and methods of making such systems.
摘要翻译：一个实施例包括接收发射信号的方法。该方法包括接收通过信道发送的信号。信号包括已知信号和信息信号。该方法还包括至少部分地基于已知信号的部分来确定信道特性的至少一个指示符。该方法还包括至少部分地基于信道特性的至少一个指示符来生成指示信息信号的第一值。第一个值包括一个误差信号。该方法还包括至少部分地基于已知信号的部分从信号的第一估计中去除误差信号。其他实施例包括用于执行制造这种系统的方法和方法的系统。

70. 发明申请

US20100202414A1 HSDPA SYSTEM WITH REDUCED INTER-USER INTERFERENCE 失效
标题翻译： HSDPA系统具有减少的用户间干扰
公开(公告)号：US20100202414A1
公开(公告)日：2010-08-12
申请号：US12768492
申请日：2010-04-27
申请人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
发明人： Durga Prasad Malladi , Peter Gaal , Yongbin Wei
IPC分类号： H04W72/04 , G06F11/08 , H03M13/00
CPC分类号： H04L1/0029 , H04L1/0003 , H04L1/0025
摘要： In a wireless network (100) with HSDPA-enabled user equipment devices (130), the base transceiver station (120) transmits to each HSDPA-enabled UE information regarding allocation of HSDPA codes and associated modulation techniques for other HSDPA-enabled UEs. Using this additional control information, each UE configures decision feedback filter of its equalizer to reduce inter-user interference. The additional control information may be transmitted in a packet (300) that includes a CRC portion (310) with the packet's CRC masked by a common ID, which is known to the HSDPA-enabled UEs. To reduce the number of bits needed to transmit the additional control information, the HSDPA codes used with a particular modulation technique are allocated consecutively. For each modulation technique, only the beginning code and the total number of codes need be known to the UEs. The number of codes used with each modulation technique may be allowed to change once in several TTIs.
摘要翻译：在具有支持HSDPA的用户设备（130）的无线网络（100）中，基站收发器（120）向每个支持HSDPA的UE发送关于其他支持HSDPA的UE的HSDPA代码分配和相关调制技术的信息。使用该附加控制信息，每个UE配置其均衡器的判决反馈滤波器以减少用户间干扰。附加控制信息可以在包括CRC部分（310）的分组（300）中发送，其中分组的CRC被公共ID掩蔽，这是启用HSDPA的UE已知的。为了减少发送附加控制信息所需的位数，连续分配与特定调制技术一起使用的HSDPA码。对于每个调制技术，只有起始码和代码总数需要为UE所知。可以允许每个调制技术使用的代码数量在几个TTI中改变一次。

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