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1. 发明申请

WO2011115907A1 ALLOCATING ANTENNAS FOR CYCLIC DELAY DIVERSITY TRANSMISSION 审中-公开
标题翻译：分配用于循环延迟分散传输的天线
公开(公告)号：WO2011115907A1
公开(公告)日：2011-09-22
申请号：PCT/US2011/028342
申请日：2011-03-14
申请人： BROADCOM CORPORATION , TUJKOVIC, Djordje , SHASHIDHAR, Vummintala , STAUFFER, Erik , RANJAN, Rishi , CHAKRABORTY, Soumen , HOCHWALD, Bertrand , RAJAGOPAL, Sriram , ALEX, Sam
发明人： TUJKOVIC, Djordje , SHASHIDHAR, Vummintala , STAUFFER, Erik , RANJAN, Rishi , CHAKRABORTY, Soumen , HOCHWALD, Bertrand , RAJAGOPAL, Sriram , ALEX, Sam
IPC分类号： H04L27/28
CPC分类号： H04B7/0671 , H04B7/0691
摘要： Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.
摘要翻译：公开了分配用于循环延迟分集（CDD）传输的天线的方法和装置。一种方法包括估计具有多个天线的收发机的传输信道。基于估计的传输信道来选择多个收发天线的子集。基于单个收发器天线的传输路径的信道质量来识别该子集的单个收发天线。从多个天线的子集中发送循环延迟分集（CDD）信号，其中从所述多个收发器天线的子集的所识别的单个收发器天线发送最小延迟的CDD信号。

2. 发明申请

WO2007117468A2 METHOD AND SYSTEM FOR UPLINK COORDINATED RECEPTION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS 审中-公开
标题翻译：正交频分多址接入系统中上行链路协调接收的方法与系统
公开(公告)号：WO2007117468A2
公开(公告)日：2007-10-18
申请号：PCT/US2007/008310
申请日：2007-03-30
申请人： BECEEM COMMUNICATIONS, INC. , JALLOUL, Louay , TUJKOVIC, Djordje , SHASHIDHAR, Vummintala , HOCHWALD, Bertrand , PAULRAJ, Arogyaswami
发明人： JALLOUL, Louay , TUJKOVIC, Djordje , SHASHIDHAR, Vummintala , HOCHWALD, Bertrand , PAULRAJ, Arogyaswami
IPC分类号： H04J3/02
CPC分类号： H04W72/082 , H04B7/0491 , H04L5/023 , H04L2025/03414 , H04L2025/03426 , H04W52/24 , H04W52/241 , H04W52/243
摘要： Embodiments disclose a method of coordinating reception of uplink transmissions in order to reduce interference among transceivers in an OFDM wireless transmission system, or similar communication system, including a number of receivers communicating with one or more basestations in cell or sector arrangements. A basestation within each sector includes an uplink coordinated reception process that imposes coordinated reception techniques across sector or cell boundaries in order to improve uplink transmission quality between target terminals and basestations within each sector.
摘要翻译：实施例公开了一种协调上行链路传输的接收的方法，以便减少OFDM无线传输系统中的收发器之间的干扰，或者类似的通信系统，包括与小区或扇区布置中的一个或多个基站通信的多个接收机。每个扇区内的基站包括上行链路协调接收过程，其跨扇区或小区边界施加协调的接收技术，以便改善目标终端与每个扇区内的基站之间的上行传输质量。

3. 发明申请

WO2007117468A3 METHOD AND SYSTEM FOR UPLINK COORDINATED RECEPTION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS 审中-公开
标题翻译：正交频分多址接入系统中上行链路协调接收的方法与系统
公开(公告)号：WO2007117468A3
公开(公告)日：2008-08-28
申请号：PCT/US2007008310
申请日：2007-03-30
申请人： BECEEM COMMUNICATIONS INC , JALLOUL LOUAY , TUJKOVIC DJORDJE , SHASHIDHAR VUMMINTALA , HOCHWALD BERTRAND , PAULRAJ AROGYASWAMI
发明人： JALLOUL LOUAY , TUJKOVIC DJORDJE , SHASHIDHAR VUMMINTALA , HOCHWALD BERTRAND , PAULRAJ AROGYASWAMI
IPC分类号： H04B7/00 , H04B7/185 , H04B17/00
CPC分类号： H04W72/082 , H04B7/0491 , H04L5/023 , H04L2025/03414 , H04L2025/03426 , H04W52/24 , H04W52/241 , H04W52/243
摘要： Embodiments disclose a method of coordinating reception of uplink transmissions in order to reduce interference among transceivers in an OFDM wireless transmission system, or similar communication system, including a number of receivers communicating with one or more basestations in cell or sector arrangements. A basestation within each sector includes an uplink coordinated reception process that imposes coordinated reception techniques across sector or cell boundaries in order to improve uplink transmission quality between target terminals and basestations within each sector.
摘要翻译：实施例公开了一种协调上行链路传输的接收的方法，以便减少OFDM无线传输系统中的收发器之间的干扰，或者类似的通信系统，包括与小区或扇区布置中的一个或多个基站通信的多个接收机。每个扇区内的基站包括上行链路协调接收过程，其跨扇区或小区边界施加协调的接收技术，以便改善目标终端与每个扇区内的基站之间的上行传输质量。

4. 发明授权

US08855641B2 Wireless communication device capable of efficient radio access technology measurements 有权
标题翻译：无线通信设备能够进行有效的无线接入技术测量
公开(公告)号：US08855641B2
公开(公告)日：2014-10-07
申请号：US13341686
申请日：2011-12-30
申请人： C. Ashok Kumar Reddy , Shashidhar Vummintala
发明人： C. Ashok Kumar Reddy , Shashidhar Vummintala
IPC分类号： H04W88/02 , H04W36/08
CPC分类号： H04W36/08 , Y02D70/126
摘要： A wireless communication device is disclosed that is capable of performing efficient measurements of secondary radio access technologies (RATs). The device includes multiple receiver chains. While operating in a first RAT, the device receives a measurement gap in order to perform measurements. Even though the measurement gap may be too small to adequately measure the other RAT, the device controls one of the receiver chains to measure the other RAT during a time period that overlaps with the measurement gap. In addition, when preparing for an inter-RAT handoff, the device controls one of the receiver chains to perform measurements regardless of whether a measurement gap has been received. In this manner, measurements of alternative RATs are efficiently performed, and handoff latency is significantly reduced.
摘要翻译：公开了能够执行次级无线电接入技术（RAT）的有效测量的无线通信设备。该设备包括多个接收器链。当在第一RAT操作时，该装置接收测量间隙以进行测量。即使测量间隙可能太小而无法充分测量其他RAT，器件控制接收机链中的一个，以在与测量间隙重叠的时间段内测量另一RAT。另外，当准备RAT间切换时，无论接收到测量间隙，设备控制接收机链中的一个来执行测量。以这种方式，有效地执行替代RAT的测量，并且显着减少切换等待时间。

5. 发明申请

US20130130687A1 WIRELESS COMMUNICATION DEVICE CAPABLE OF EFFICIENT RADIO ACCESS TECHNOLOGY MEASUREMENTS 有权
标题翻译：有效无线接入技术测量的无线通信设备
公开(公告)号：US20130130687A1
公开(公告)日：2013-05-23
申请号：US13341686
申请日：2011-12-30
申请人： C. Ashok Kumar Reddy , Shashidhar Vummintala
发明人： C. Ashok Kumar Reddy , Shashidhar Vummintala
IPC分类号： H04W24/00 , H04W36/30
CPC分类号： H04W36/08 , Y02D70/126
摘要： A wireless communication device is disclosed that is capable of performing efficient measurements of secondary radio access technologies (RATs). The device includes multiple receiver chains. While operating in a first RAT, the device receives a measurement gap in order to perform measurements. Even though the measurement gap may be too small to adequately measure the other RAT, the device controls one of the receiver chains to measure the other RAT during a time period that overlaps with the measurement gap. In addition, when preparing for an inter-RAT handoff, the device controls one of the receiver chains to perform measurements regardless of whether a measurement gap has been received. In this manner, measurements of alternative RATs are efficiently performed, and handoff latency is significantly reduced.
摘要翻译：公开了能够执行次级无线电接入技术（RAT）的有效测量的无线通信设备。该设备包括多个接收器链。当在第一RAT操作时，该装置接收测量间隙以进行测量。即使测量间隙可能太小而无法充分测量其他RAT，器件控制接收机链中的一个，以在与测量间隙重叠的时间段内测量另一RAT。另外，当准备RAT间切换时，无论接收到测量间隙，设备控制接收机链中的一个来执行测量。以这种方式，有效地执行替代RAT的测量，并且显着减少切换等待时间。

6. 发明申请

US20130130751A1 WIRELESS COMMUNICATION DEVICE HAVING REDUCED POWER CONSUMPTION 有权
标题翻译：具有降低功耗的无线通信设备
公开(公告)号：US20130130751A1
公开(公告)日：2013-05-23
申请号：US13309290
申请日：2011-12-01
申请人： Shashidhar Vummintala , Gowrisankar Somichetty , Sriram Rajagopal , Sindhu Verma , Manish Airy , Hariprasad Gangadharan , Pugazhanthi R.P. , Felix Varghese , Erik Stauffer
发明人： Shashidhar Vummintala , Gowrisankar Somichetty , Sriram Rajagopal , Sindhu Verma , Manish Airy , Hariprasad Gangadharan , Pugazhanthi R.P. , Felix Varghese , Erik Stauffer
IPC分类号： H04W52/02
CPC分类号： H04W52/0216 , H03D7/16 , H04L41/0803 , H04W28/0263 , Y02D70/00 , Y02D70/1262 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/24
摘要： A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.
摘要翻译：公开了能够降低功耗的无线通信设备。 WiMAX，802.16m或LTE环境中的上行链路和下行链路子帧通常包括几个空闲符号，在此期间，功耗很大的硬件和软件组件不需要在全功率下运行。通过分析接收信号的物理层信标和控制信息，可以确定数据突发的特定位置以及接收机模块有效解码这些数据脉冲串的所需操作周期。否则，在空闲时间的剩余时间期间，接收器模块可以被控制为在低功率状态下操作，从而节省功耗并延长电池寿命。

7. 发明授权

US07477698B2 Method and system for rate-2 transmission 有权
标题翻译：速率2传输的方法和系统
公开(公告)号：US07477698B2
公开(公告)日：2009-01-13
申请号：US11205504
申请日：2005-08-16
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
IPC分类号： H04B7/02
CPC分类号： H04L1/0606 , H04L1/0071 , H04L1/0618
摘要： Signal encoding in a multiple input multiple output system in a wireless communication network is provided. The communication system provides a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The communication system further provides a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译：提供了在无线通信网络中的多输入多输出系统中的信号编码。通信系统提供了一种以Hertz传输系统每秒的速率2复数符号进行编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，在三个发射天线系统上实现三分之一。通信系统还提供了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。

8. 发明申请

US20060008025A1 Method and system for rate-2 transmission 有权
标题翻译：速率2传输的方法和系统
公开(公告)号：US20060008025A1
公开(公告)日：2006-01-12
申请号：US11175430
申请日：2005-07-05
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik Lindskog , Balaji Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik Lindskog , Balaji Rajan , Djordje Tujkovic
IPC分类号： H04B7/02
CPC分类号： H04L1/0625 , H04L1/0071 , H04L1/0643
摘要： The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译：本发明一般涉及无线通信网络中的多输入多输出系统中的信号编码领域。本发明具体涉及以每Hertz传输系统每秒速率2复数符号编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，三个发射天线系统实现三分之一。本发明公开了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。

9. 发明授权

US08855250B2 Wireless communication system with improved automatic gain control 有权
标题翻译：无线通信系统具有改进的自动增益控制
公开(公告)号：US08855250B2
公开(公告)日：2014-10-07
申请号：US13252047
申请日：2011-10-03
申请人： Sam Alex , Rajesh Manakkal , Shashidhar Vummintala
发明人： Sam Alex , Rajesh Manakkal , Shashidhar Vummintala
IPC分类号： H04B14/06 , H04W52/52
CPC分类号： H04W52/52
摘要： A wireless communication device is disclosed that includes an automatic gain controller capable of accurately adjusting gain of a received signal. The received signal includes a plurality of symbols, including pilot symbols that each includes at least one pilot tone, and data symbols that do not include any pilot tones. A power of a pilot symbol is determined, and a power of a data symbol is determined. The determined data symbol power is then scaled by a scaling factor (that depends on various system parameters) and is subtracted from the determined pilot symbol power to provide an estimate of a power of the pilot tones within the signal. From the estimated pilot tone power, the automatic gain controller can accurately determine a preferred gain for amplifying future frames of the received signal.
摘要翻译：公开了一种无线通信设备，其包括能够精确地调整接收信号的增益的自动增益控制器。所接收的信号包括多个符号，包括每个包括至少一个导频音的导频符号，以及不包括任何导频音的数据符号。确定导频符号的功率，并且确定数据符号的功率。然后，通过缩放因子（取决于各种系统参数）对所确定的数据符号功率进行缩放，并从确定的导频符号功率中减去以提供该信号内的导频音的功率的估计。从估计的导频音功率，自动增益控制器可以准确地确定用于放大接收信号的未来帧的优选增益。

10. 发明授权

US07586997B2 Method and system for maximum transmit diversity 有权
标题翻译：最大发射分集的方法和系统
公开(公告)号：US07586997B2
公开(公告)日：2009-09-08
申请号：US11205505
申请日：2005-08-16
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
IPC分类号： H04L27/00
CPC分类号： H04L1/0625 , H04B7/0678 , H04L1/0071 , H04L1/0668 , H04L27/3472
摘要： A communication system is provided that includes signal encoding in a multiple input multiple output system. The communication system includes wireless communication networks. The communication system includes methods of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The communication further includes methods of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译：提供了一种在多输入多输出系统中包括信号编码的通信系统。通信系统包括无线通信网络。通信系统包括以每赫兹传输系统每秒速率1复数符号编码和传输符号的方法，同时实现最大分集。该通信还包括对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。

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