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81. 发明授权

US07961640B2 Method and apparatus for codebook exchange in a multiple access wireless communication system 有权
标题翻译：用于多址无线通信系统中码本交换的方法和装置
公开(公告)号：US07961640B2
公开(公告)日：2011-06-14
申请号：US11923967
申请日：2007-10-25
申请人： Rajat Prakash , Sandip Sarkar
发明人： Rajat Prakash , Sandip Sarkar
IPC分类号： H04L12/26
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/063 , H04B7/0634 , H04B7/0639 , H04L2025/03426
摘要： Methods and apparatus are disclosed for generating and exchanging codebooks in a multiple access wireless communication system. The codebooks include a plurality of preferred precoding matrices.
摘要翻译：公开了用于在多址无线通信系统中生成和交换码本的方法和装置。码本包括多个优选的预编码矩阵。

82. 发明申请

US20090274100A1 UPLINK RESOURCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中的上网资源管理
公开(公告)号：US20090274100A1
公开(公告)日：2009-11-05
申请号：US12435354
申请日：2009-05-04
申请人： Juan Montojo , Durga Prasad Malladi , Sandip Sarkar
发明人： Juan Montojo , Durga Prasad Malladi , Sandip Sarkar
IPC分类号： H04W74/00
CPC分类号： H04L1/1614 , H04L1/1671 , H04L5/0007 , H04L5/0053 , H04L5/0064
摘要： Management of uplink resources in a wireless communication is presented. In one embodiment, management of uplink resources comprises receiving a multi-bit acknowledge (multi-bit A/N) that is available for uplink transmission and receiving other information that is available for uplink transmission along with the multi-bit A/N. Next, it is determined whether a condition has been met. If the condition has been met, an uplink message is created comprising the multi-bit A/N but dropping the other information. If the condition has not been met, an uplink message is created which jointly codes the multi-bit A/N and the other information. The uplink message is then transmitted to a receiver.
摘要翻译：介绍无线通信中上行链路资源的管理。在一个实施例中，上行链路资源的管理包括接收可用于上行链路传输的多比特确认（多比特A / N）以及接收与多比特A / N一起可用于上行链路传输的其他信息。接下来，确定是否满足条件。如果满足条件，则创建包括多比特A / N但丢弃其他信息的上行链路消息。如果条件尚未满足，则创建一个上行链路消息，共同编码多位A / N和其他信息。然后将上行链路消息发送到接收机。

83. 发明申请

US20090168922A1 METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS 有权
标题翻译：用于移动通信中的PDCCH盲解码的方法和系统
公开(公告)号：US20090168922A1
公开(公告)日：2009-07-02
申请号：US12259798
申请日：2008-10-28
申请人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04L27/00
CPC分类号： H04L1/0038 , H04W72/042
摘要： Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
摘要翻译：描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。对可能的CCE组合的几种形式进行了调查和调查。基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到类似的边界。通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

84. 发明申请

US20090129298A1 EFFICIENT SYSTEM IDENTIFICATION SCHEMES FOR COMMUNICATION SYSTEMS 有权
标题翻译：高效的通信系统识别方案
公开(公告)号：US20090129298A1
公开(公告)日：2009-05-21
申请号：US12248303
申请日：2008-10-09
申请人： Tao Luo , Durga Prasad Malladi , Juan Montojo , Peter Gaal , Sandip Sarkar
发明人： Tao Luo , Durga Prasad Malladi , Juan Montojo , Peter Gaal , Sandip Sarkar
IPC分类号： H04J3/02 , H04L5/14
CPC分类号： H04W48/12 , H04J11/0069 , H04L27/2602 , H04W56/001
摘要： Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
摘要翻译：描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。例如，无线电帧中的PSC和SSC的相对位置可以是参数的函数。此外，可以基于参数来选择用于生成PSC的PSC序列。此外，从无线电帧中包含或排除PSC可以是参数的函数。另外或替代地，伪随机序列映射（例如，到小区ID，音调位置）可以是参数的函数。示例性参数可以是基站是TDD或FDD系统的一部分，无线电帧是使用FS1还是FS2，基站是与宏还是毫微微小区相关联，还是基站是否与单播或多播系统。

85. 发明申请

US20090046582A1 BEAMFORMING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中控制信息的建立
公开(公告)号：US20090046582A1
公开(公告)日：2009-02-19
申请号：US12189548
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： G08C15/00
CPC分类号： H04B7/043 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/0053 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
摘要翻译：描述用于在无线通信系统中发送业务数据和控制信息的技术。在一种设计中，发射机（例如，节点B或UE）可以基于预编码矩阵来执行波束成形以在M层上发送业务数据，其中M可以是一个或更多个。发射机还可以基于用于业务数据的相同预编码矩阵来执行波束成形以发送多达M个层的控制信息。发射机可以在第一物理信道上发送波束形成的业务数据，并且可以在第二物理信道上发送波束形成的控制信息。发射机可以使用时分复用（TDM）或频分复用（FDM）来复用波束形成的业务数据和波束形成的控制信息。

86. 发明申请

US20080101322A1 METHOD AND APPARATUS FOR CODEBOOK EXCHANGE IN A MULTIPLE ACCESS WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：多种无线通信系统中的代码交换方法与装置
公开(公告)号：US20080101322A1
公开(公告)日：2008-05-01
申请号：US11923967
申请日：2007-10-25
申请人： Rajat Prakash , Sandip Sarkar
发明人： Rajat Prakash , Sandip Sarkar
IPC分类号： H04B7/216
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/063 , H04B7/0634 , H04B7/0639 , H04L2025/03426
摘要： Methods and apparatus are disclosed for generating and exchanging codebooks in a multiple access wireless communication system. The codebooks include a plurality of preferred precoding matrices.
摘要翻译：公开了用于在多址无线通信系统中生成和交换码本的方法和装置。码本包括多个优选的预编码矩阵。

87. 发明授权

US07170876B2 Outer-loop scheduling design for communication systems with channel quality feedback mechanisms 有权
标题翻译：具有信道质量反馈机制的通信系统的外环调度设计
公开(公告)号：US07170876B2
公开(公告)日：2007-01-30
申请号：US10136906
申请日：2002-04-30
申请人： Yongbin Wei , Jack M. Holtzman , Gang Bao , Sandip Sarkar , David Puig-Oses
发明人： Yongbin Wei , Jack M. Holtzman , Gang Bao , Sandip Sarkar , David Puig-Oses
IPC分类号： H04L1/12
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0034 , H04L1/16 , H04L1/1812 , H04L1/1867 , H04L1/20 , H04L47/11 , H04L47/14 , H04L47/26 , H04L47/50 , H04L47/522 , H04L47/626 , H04W28/18 , H04W52/08 , H04W52/146 , H04W72/1226 , H04W72/1231 , H04W72/1284
摘要： Methods and apparatus are presented for dynamically adjusting parameters of an outer-loop algorithm, which is used to determine the feasibility of a transmission format. The parameters of the outer-loop algorithm are adjusted according to channel conditions. In one embodiment, an erasure-based approach is used to determine whether to incrementally increase or incrementally decrease a margin parameter in the outer-loop algorithm. Once one margin parameter is altered, other margin parameters can be adjusted accordingly.
摘要翻译：提出了用于动态调整外环算法参数的方法和装置，用于确定传输格式的可行性。根据信道条件调整外环算法的参数。在一个实施例中，使用基于擦除的方法来确定是否递增地增加或递增地减小外环算法中的边缘参数。一旦修改了边距参数，可以相应地调整其他边距参数。

88. 发明申请

US20050048937A1 Systems and techniques for power control 审中-公开
标题翻译：功率控制系统和技术
公开(公告)号：US20050048937A1
公开(公告)日：2005-03-03
申请号：US10966130
申请日：2004-10-15
申请人： Sandip Sarkar , Tao Chen
发明人： Sandip Sarkar , Tao Chen
IPC分类号： H04J13/00 , H04B1/04 , H04B7/005 , H04B7/26
CPC分类号： H04W52/282 , H04W52/16 , H04W52/20 , H04W52/26 , H04W52/325 , H04W52/38 , H04W52/44
摘要： Systems and techniques for power control include receiving a transmission having a channel with active portion and a silent portion, and controlling power of the received transmission as a function of a parameter of the active portion of the channel during a first time period and independent of the parameter during a second time period. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译：用于功率控制的系统和技术包括接收具有有效部分和无声部分的信道的传输，以及在第一时间段期间，根据信道的有效部分的参数来控制所接收的传输的功率，并独立于参数在第二时间段。要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

89. 发明授权

US06363060B1 Method and apparatus for fast WCDMA acquisition 有权
标题翻译：用于快速WCDMA采集的方法和装置
公开(公告)号：US06363060B1
公开(公告)日：2002-03-26
申请号：US09345283
申请日：1999-06-30
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04J1300
CPC分类号： H04B1/70752 , H04B1/70735 , H04B1/70755 , H04B1/708 , H04B1/7083 , H04B2201/70701 , H04B2201/70707
摘要： A method and apparatus for quickly acquiring synchronization of a signal in a WCDMA communication system utilizing variable duration sample accumulation, validity testing of decoder estimates, and parallel decoding of multiple synchronization signals within a PERCH channel. The receiver accumulates the samples necessary to reliably determine slot timing. Until slot timing estimates pass a validity test, samples are accumulated for frame timing estimates. Until frame timing estimates pass a validity test, samples are analyzed to determine the pilot offset of the channel.
摘要翻译：一种在WCDMA通信系统中利用可变持续时间采样累加，解码器估计的有效性测试以及PERCH信道内的多个同步信号的并行解码来快速获取信号的同步的方法和装置。接收机累积必要的样本以可靠地确定时隙时序。在时隙定时估计通过有效性测试之前，对于帧定时估计，采样被累积。直到帧定时估计通过有效性测试，分析样本以确定信道的导频偏移。

90. 发明授权

US5218196A Light curtain system with system and watchdog microcontrollers 失效
标题翻译：光幕系统与系统和看门狗微控制器
公开(公告)号：US5218196A
公开(公告)日：1993-06-08
申请号：US755566
申请日：1991-09-05
申请人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
发明人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
IPC分类号： F16P3/14 , G01V8/20 , G06F11/00 , G06F11/16 , G06F11/26 , G08B13/183 , H01H47/00
CPC分类号： H01H47/002 , F16P3/14 , F16P3/144 , G01V8/20 , G06F11/261 , G08B13/183 , G06F11/0757
摘要： A photodetection system and related circuitry designed to sense the intrusion of an opaque object in a light plane. Upon sensing the intrusion, the system quickly initiates a machine-stopping sequence prior to the opaque object coming into contact with the machine while that machine is operating. The system comprises a SYSTEM microcontroller and a WATCHDOG microcontroller, both of which operate an output control device of the light curtain switch of the invention, wherein the output control device comprises a plurality of electromechanical relays. Both microcontrollers also perform system hardware and software integrity checks. Furthermore, the WATCHDOG microcontroller evaluates the performance of the SYSTEM microcontroller by transmitting a false intrusion signal to a photosource, determining whether the false signal has been detected, and then verifying that the SYSTEM microcontroller has initiated the machine-stopping sequence. The machine-stopping sequence may be overridden by the WATCHDOG microcontroller, or it may be initiated if the false signal is not detected. The combination of electronic, mechanical, and optical modules of the present invention provides improved reliability and accuracy. In addition, the SYSTEM microcontroller and the WATCHDOG microcontroller are designed so as to reduce the system's sensitivity to spurious signals.
摘要翻译：光检测系统和相关电路，设计用于感测光平面中不透明物体的侵入。在感测入侵时，系统在该机器正在运行之前，在不透明物体与机器接触之前，快速启动机器停止序列。该系统包括SYSTEM微控制器和WATCHDOG微控制器，两者都操作本发明的光幕开关的输出控制装置，其中输出控制装置包括多个机电继电器。两个微控制器还执行系统硬件和软件完整性检查。此外，WATCHDOG微控制器通过向光源发送假入侵信号，确定是否检测到伪信号，然后验证SYSTEM微控制器已启动停机序列来评估SYSTEM微控制器的性能。机器停止序列可能被WATCHDOG微控制器覆盖，或者如果未检测到假信号，则可能启动停机序列。本发明的电子，机械和光学模块的组合提供了改进的可靠性和精度。此外，SYSTEM微控制器和WATCHDOG微控制器被设计为降低系统对寄生信号的灵敏度。

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