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公开(公告)号：US09008734B2
公开(公告)日：2015-04-14
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 , Ramasamy Palanisamy Pugazhanthi , Felix Varghese , Erik Stauffer
发明人： Shashidhar Vummintala , Gowrisankar Somichetty , Sriram Rajagopal , Sindhu Verma , Manish Airy , Hariprasad Gangadharan , Ramasamy Palanisamy Pugazhanthi , Felix Varghese , Erik Stauffer
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。
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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。
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公开(公告)号：US08856609B2
公开(公告)日：2014-10-07
申请号：US13434552
申请日：2012-03-29
申请人： Shashidhar Vummintala , Arumugam Velayoudame , Gowrisankar Somichetty , Sriram Rajagopal , Sandip Solanki , Kalyana Krishnan
发明人： Shashidhar Vummintala , Arumugam Velayoudame , Gowrisankar Somichetty , Sriram Rajagopal , Sandip Solanki , Kalyana Krishnan
CPC分类号： H03M13/091 , G06F11/10 , H03M13/09 , H03M13/1515 , H03M13/23 , H03M13/29 , H03M13/2906 , H03M13/2957 , H03M13/6306 , H04L1/0045 , H04L1/0052 , H04L1/0061 , H04L1/1809
摘要： Improved strategies for a Cyclical Redundancy Check (CRC) are disclosed. A CRC check of a codeblock may be initiated by a CRC decoder before receiving all of the bits by a corresponding FEC encoder. Furthermore, an incremental CRC check with respect to the data packet without the need for requesting passed through data from higher layers.
摘要翻译： 公开了循环冗余校验（CRC）的改进策略。 在通过相应的FEC编码器接收所有比特之前，可以由CRC解码器发起码块的CRC校验。 此外，相对于数据分组的增量CRC校验，而不需要请求通过来自较高层的数据。
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公开(公告)号：US20130128937A1
公开(公告)日：2013-05-23
申请号：US13463445
申请日：2012-05-03
IPC分类号： H04W24/00
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 receiver is disclosed that is capable of efficiently selecting a preferred transmission/detection scheme for use in wireless communication. The wireless receiver may be capable of communicating using any one of several transmission/detection schemes. Therefore, in order to select a preferred transmission/detection scheme, the wireless receiver calculates at least one metric for the transmission/detection schemes. In MIMO systems, the link adaptation is more complex and the metrics typically must be more accurate. Because of the potentially substantial amount of calculation that may be required to calculate the metric, the wireless receiver is capable of performing the individual calculations in optimized ways, as well as easily reducing the total number of metrics required to be calculated so as to reduce overall complexity.
摘要翻译： 公开了能够有效地选择用于无线通信中的优选传输/检测方案的无线接收机。 无线接收机可以能够使用几种传输/检测方案中的任何一种进行通信。 因此，为了选择优选的发送/检测方案，无线接收机计算发送/检测方案的至少一个度量。 在MIMO系统中，链路自适应更加复杂，并且度量通常必须更准确。 由于计算度量可能需要大量计算，因此无线接收器能够以优化的方式执行单独的计算，并且可以轻松地减少所需的计算总数，以减少整体 复杂。
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5.发明授权Wireless communication device capable of efficient radio access technology measurements 有权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
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。
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6.发明申请公开(公告)号：US20130130687A1
公开(公告)日：2013-05-23
申请号：US13341686
申请日：2011-12-30
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。
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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。
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公开(公告)号：US20060008025A1
公开(公告)日：2006-01-12
申请号：US11175430
申请日：2005-07-05
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。
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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
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。
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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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