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61.发明授权Methods and apparatus for signal and interference energy estimation in a communication system 有权通信系统中信号和干扰能量估计的方法和装置公开(公告)号：US08229708B2
公开(公告)日：2012-07-24
申请号：US11563627
申请日：2006-11-27
IPC分类号： G01R15/00 , G01R21/00 , H04B15/00 , H04B1/10 , H04B3/46 , H04B1/00 , H04B17/00 , H04B1/04 , H04B1/12 , H04L25/08
CPC分类号： H04B1/1027
摘要： Methods and apparatus for signal and interference energy estimation in a communication system. In an aspect, a method includes setting a threshold value, and comparing a channel estimate to the threshold value to determine an interference estimate (Iest). The method also includes averaging the interference estimate (Iest) to determine average channel interference (Ic), and determining interference energy (I) based on the interference estimate (Iest) and the average channel interference (Ic). In another aspect, an apparatus includes threshold logic configured to set a threshold value and compare a channel estimate to the threshold value to determine an interference estimate (Iest). The apparatus includes averaging logic configured to average the interference estimate (Iest) to determine average channel interference (Ic), and summing logic configured to determine interference energy (I) based on the interference estimate (Iest) and average channel interference (Ic).
摘要翻译： 通信系统中信号和干扰能量估计的方法和装置。 一方面，一种方法包括设置阈值，以及将信道估计与阈值进行比较以确定干扰估计（Iest）。 该方法还包括对干扰估计（Iest）进行平均以确定平均信道干扰（Ic），以及基于干扰估计（Iest）和平均信道干扰（Ic）来确定干扰能量（I）。 在另一方面，一种装置包括阈值逻辑，其被配置为设置阈值并将信道估计与阈值进行比较以确定干扰估计（Iest）。 该装置包括被配置为平均干扰估计（Iest）以确定平均信道干扰（Ic）的平均逻辑，以及被配置为基于干扰估计（Iest）和平均信道干扰（Ic））来确定干扰能量（I）的求和逻辑。
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62.发明申请Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal 有权降低OFDM发射信号的峰均比的方法和装置公开(公告)号：US20070230596A1
公开(公告)日：2007-10-04
申请号：US11519256
申请日：2006-09-11
IPC分类号： H04K1/10
CPC分类号： H04L27/2614 , H04L27/2615
摘要： Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal. In an aspect, a method is provided for reducing a peak to average ratio of a transmit waveform. The method includes obtaining a primary scrambler sequence, generating a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining the primary and secondary scrambler sequences to produce a PAR reduction sequence. In another aspect, an apparatus is provided for reducing a peak to average ratio of a transmit waveform. The apparatus includes a secondary generator configured to generate a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining logic configured to combine a primary scrambler sequence and the secondary scrambler sequences to produce a PAR reduction sequence.
摘要翻译： 降低OFDM发射信号的峰均比的方法和装置。 在一方面，提供了一种降低发射波形的峰均比的方法。 该方法包括：获得主加扰器序列，产生具有基于要加扰的数据的长度特性的次扰频序列，以及组合所述主加扰序列和次加扰序列以产生PAR减少序列。 在另一方面，提供一种用于减小发射波形的峰均比的装置。 该装置包括辅助发生器，其被配置为产生具有基于要加扰的数据的长度特性的二次扰频器序列，以及被配置为组合主加扰器序列和次加扰器序列以产生PAR减少序列的组合逻辑。
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63.发明申请Efficient employment of digital upsampling using IFFT in OFDM systems for simpler analog filtering 有权在OFDM系统中有效利用使用IFFT的数字上采样进行更简单的模拟滤波公开(公告)号：US20060215540A1
公开(公告)日：2006-09-28
申请号：US11373001
申请日：2006-03-09
IPC分类号： H04J11/00
CPC分类号： H04L27/2644
摘要： Systems and methods are provided for transmitting OFDM information via IFFT up-sampling components that transmit data at a higher sampling rate than conventional systems to simplify filter requirements and mitigate leakage between symbols. In one embodiment, an NL point IFFT is performed on a zero inserted set of frequency domain symbols. In another embodiment, the NL point IFFT is further optimized by exploiting the fact that (N−1) L of the frequency domain symbols are zero. This enables an embodiment that consists of a pre-processor that multiplies the input samples by complex phase factors, followed by L point IFFTs.
摘要翻译： 提供了系统和方法，用于通过IFFT上采样组件传输OFDM信息，该组件以比常规系统更高的采样速率传输数据，以简化滤波器要求并减轻符号之间的泄漏。 在一个实施例中，对零插入的频域符号组执行NL点IFFT。 在另一个实施例中，通过利用频域符号的（N-1）L为零的事实进一步优化NL点IFFT。 这使得能够由预处理器组成的实施例，该预处理器将输入样本乘以复相位因子，随后是L点IFFT。
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64.发明授权公开(公告)号：US09036567B2
公开(公告)日：2015-05-19
申请号：US12699596
申请日：2010-02-03
IPC分类号： H04W72/04 , H04N21/63 , H04N21/2383 , H04N21/2385 , H04N21/438
CPC分类号： H04N21/631 , H04N21/2383 , H04N21/2385 , H04N21/4382
摘要： Methods, systems, and apparatus, including computer programs encoded on computer readable storage media, for increasing utilization of transmission resources by mapping data from a block of layered codec data onto a plurality of logical channels for transmission of the mapped data. Resource utilization may also be improved by mapping data from at least two layers of a block of layered of codec data onto a logical channel that supports only a single data channel carried by a transmit modulation scheme.
摘要翻译： 方法，系统和装置，包括在计算机可读存储介质上编码的计算机程序，用于通过将来自分层编解码器数据块的数据映射到用于传输映射数据的多个逻辑信道上的数据来增加传输资源的利用。 也可以通过将来自编解码器数据分层的至少两层的数据映射到仅支持由发送调制方案承载的单个数据信道的逻辑信道上来提高资源利用。
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65.发明授权Method to track analog gain step magnitudes online during operation of wireless mobile devices 有权在无线移动设备操作期间在线跟踪模拟增益步幅的方法公开(公告)号：US07873340B2
公开(公告)日：2011-01-18
申请号：US11373369
申请日：2006-03-10
申请人： Linbo Li , Fuyun Ling , Raghuraman Krishnamoorthi
发明人： Linbo Li , Fuyun Ling , Raghuraman Krishnamoorthi
CPC分类号： H03G3/3052 , H03F1/0205 , H03F3/24 , H03F2200/294 , H03F2200/372 , H03G1/0088 , H03G3/3068 , H04B1/109
摘要： Systems and methods are provided for tracking and compensating for analog gain mismatches or changes in a receiver. In an embodiment, a method is provided to track analog gain step magnitudes during operation of a device. The method includes employing an error signal between an automatic gain control (AGC) output and a reference level as input to a gain step magnitude tracking component. This also includes determining at least one compensation value from the AGC output to update a nominal gain step magnitude that tracks an actual gain step magnitude.
摘要翻译： 提供系统和方法来跟踪和补偿接收机中的模拟增益失配或变化。 在一个实施例中，提供了一种用于在设备操作期间追踪模拟增益步幅的方法。 该方法包括采用自动增益控制（AGC）输出和参考电平之间的误差信号作为增益步长跟踪分量的输入。 这还包括从AGC输出确定至少一个补偿值以更新追踪实际增益步幅的标称增益步幅。
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公开(公告)号：US20100150131A1
公开(公告)日：2010-06-17
申请号：US12509820
申请日：2009-07-27
申请人： Krishna Kiran Mukkavilli , Ashok Mantravadi , Durk L. van Veen , Murali Ramaswamy Chari , Raghuraman Krishnamoorthi , Rajeev Krishnamurthi , Fuyun Ling
发明人： Krishna Kiran Mukkavilli , Ashok Mantravadi , Durk L. van Veen , Murali Ramaswamy Chari , Raghuraman Krishnamoorthi , Rajeev Krishnamurthi , Fuyun Ling
CPC分类号： H04L23/02 , H04L5/0053 , H04L25/0206 , H04L25/0218 , H04L25/023 , H04L27/2613 , H04L27/2647
摘要： In a multicasts wireless telecommunication system providing an aggregation of one or more independent data components as a flow, wherein the OIS is located at the latch point of the beginning of the superframe, and the OIS programming is latched at the superframe boundary, the improvement of deriving signal parameter information from Signaling Parameter Channel (SPC) symbols transmitted in a Forward Link only (FLO) network by deriving a time domain channel estimate by assuming each of the combinations for the signal parameter field in the scrambler seed and picking the signal parameter combination that yields the most energy in the time domain above a threshold value.
摘要翻译： 在提供作为流的一个或多个独立数据组件的聚合的组播无线电信系统中，其中OIS位于超帧开始的锁存点处，并且OIS编程在超帧边界处被锁存， 通过通过假设加扰器种子中的信号参数字段的每个组合并且选择信号参数组合来导出时域信道估计，从在仅前向链路（FLO）网络中发送的信令参数信道（SPC）符号中导出信号参数信息 其在时域中产生的能量大于阈值以上。
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公开(公告)号：US07706288B2
公开(公告)日：2010-04-27
申请号：US11359148
申请日：2006-02-21
CPC分类号： H04W48/16
摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
摘要翻译： 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后，接收机可以在第一RF信道和所监视的RF信道之间切换，以便于提供FLO信号的无缝接收，FLO信号可以在RF信道之间超帧同步。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。
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68.发明申请APPARATUS AND METHODS OF PROVIDING AND RECEIVING VENUE LEVEL TRANSMISSIONS AND SERVICES 有权提供和接收场地层面传输和服务的装置和方法公开(公告)号：US20100080163A1
公开(公告)日：2010-04-01
申请号：US12569792
申请日：2009-09-29
申请人： Raghuraman Krishnamoorthi , Pankaj V. Rahate , Pankaj Jain , Devarshi P. Shah , Pavel A. Seliverstov , George A. Rothrock , Nilabh Khare , Anil K. Wadhwani , Jiming Guo , Sanjiv Nanda , Fuyun Ling , Murali R. Chari , Avneesh Agrawal , Rinat Burdo , Prasanna Kannan , Krishna K. Mukkavilli , Reynaldo W. Newman , Michael M. Fan , Manoj M. Deshpande , Ranjith S. Jayaram
发明人： Raghuraman Krishnamoorthi , Pankaj V. Rahate , Pankaj Jain , Devarshi P. Shah , Pavel A. Seliverstov , George A. Rothrock , Nilabh Khare , Anil K. Wadhwani , Jiming Guo , Sanjiv Nanda , Fuyun Ling , Murali R. Chari , Avneesh Agrawal , Rinat Burdo , Prasanna Kannan , Krishna K. Mukkavilli , Reynaldo W. Newman , Michael M. Fan , Manoj M. Deshpande , Ranjith S. Jayaram
CPC分类号： H04N21/2385 , H04L12/189 , H04L67/16 , H04L67/18 , H04N21/482 , H04W4/02 , H04W4/04 , H04W48/16 , H04W72/005
摘要： A venue-cast system and method for providing and receiving venue level transmissions and services, including discovery of a venue specific transmission by receiving an overhead signal from a non-venue network, extracting information for receiving the venue specific transmission from the overhead signal, and tuning to receive the venue specific transmission based on the extracted information. The venue level transmission may be provided and received in a manner that does not prevent an access terminal from receiving a local area or wide area transmission.
摘要翻译： 一种用于提供和接收场地级传输和服务的场地播放系统和方法，包括通过从非场地网络接收开销信号来发现场地特定传输，从开销信号中提取用于接收场地特定传输的信息，以及 基于所提取的信息进行调谐以接收特定于场地的传输。 可以以不阻止接入终端接收局域或广域传输的方式提供和接收场地级传输。
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公开(公告)号：US20100002781A1
公开(公告)日：2010-01-07
申请号：US12165661
申请日：2008-07-01
申请人： Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi , Fuyun Ling , Ben A. Saidi , William A. Drennen
发明人： Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi , Fuyun Ling , Ben A. Saidi , William A. Drennen
IPC分类号： H04L27/28
摘要： A methodology for transmitter identification for a single frequency network is provided using a single CW tone. The tone can be transmitted outside the transmitter's active band. It is possible to arrive at significant overlap between the tone coverage area and the coverage area of a neighboring transmitter without disturbing the operations by picking the tone location and power appropriately.
摘要翻译： 使用单个CW音调提供用于单频网络的发射机识别的方法。 音调可以在发射器的有源频带外传输。 可以通过适当地选择音调位置和功率来抵消音调覆盖区域和相邻发射机的覆盖区域之间的重大重叠，而不会干扰操作。
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公开(公告)号：US20080020768A1
公开(公告)日：2008-01-24
申请号：US11828333
申请日：2007-07-25
IPC分类号： H04Q7/20
CPC分类号： H04W36/28 , H04W36/30 , H04W72/085
摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
摘要翻译： 描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。 接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 在确定被监视的RF信道包括FLO信号之后，接收机可以使用关于当前MLC解码状态的信息在第一RF信道和被监控的RF信道之间切换，以便于提供FLO信号的无缝接收，其可以是超帧 在RF信道之间同步。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。
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