专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US06754475B1 Transmission performance measurement and use thereof 有权
标题翻译：传输性能测量及其使用
公开(公告)号：US06754475B1
公开(公告)日：2004-06-22
申请号：US10185974
申请日：2002-06-28
申请人： Robert Mark Harrison , Kamyar Rohani , Srikanth Gummadi
发明人： Robert Mark Harrison , Kamyar Rohani , Srikanth Gummadi
IPC分类号： H03C162
CPC分类号： H04L1/0001 , H04B7/04 , H04B7/0615 , H04B7/0689 , H04L1/0025 , H04L1/0026
摘要： A method for and wireless communications unit adapted for measuring transmission performance for a signal emanating from an antenna is discussed. The wireless communications unit includes a receiver for receiving the signal in a first and a second time interval to provide, respectively, a first and a second signal; and a channel processor for assessing a relative channel metric corresponding to the first and second signal, the relative channel metric indicative of the transmission performance of a transmission mode. A corresponding method and base transmitter is also arranged and adapted for adjusting a transmission mode based on measured transmission performance and includes a transmitter for sending the signal in the first and second time interval and a base channel processor for determining a channel metric corresponding to the first and second signal, the channel metric indicative of the transmission performance; the transmitter further sending a control signal corresponding to the transmission mode adjusted according to the transmission performance.
摘要翻译：讨论了一种用于测量从天线发出的信号的传输性能的方法和无线通信单元。无线通信单元包括接收器，用于在第一和第二时间间隔中接收信号以分别提供第一和第二信号; 以及信道处理器，用于评估对应于第一和第二信号的相对信道度量，表示传输模式的传输性能的相对信道度量。相应的方法和基站发射机也被布置并适于基于测量的传输性能来调整传输模式，并且包括用于在第一和第二时间间隔内发送信号的发射机和用于确定与第一和第二时间间隔对应的信道度量的基本信道处理器和第二信号，表示传输性能的信道度量; 发射机进一步发送对应于根据传输性能调整的传输模式的控制信号。

72. 发明授权

US06724327B1 Lower latency coding/decoding 有权
标题翻译：低延迟编码/解码
公开(公告)号：US06724327B1
公开(公告)日：2004-04-20
申请号：US10447400
申请日：2003-05-29
申请人： Stephen P. Pope , John T. Coffey , Srikanth Gummadi
发明人： Stephen P. Pope , John T. Coffey , Srikanth Gummadi
IPC分类号： H03M740
CPC分类号： H03M13/00
摘要： An electronic device may receive a packet comprising a plurality of codewords comprising pre-processing logic, a first decoder, and a second decoder. The pre-processing logic causes some of said codewords to be provided to the first decoder and other of said codewords to be provided to the second decoder. The codewords may be of different lengths and/or different code rates. Further, the first and second decoders may implement the same or different decoding technique.
摘要翻译：电子设备可以接收包括包括预处理逻辑，第一解码器和第二解码器的多个码字的分组。预处理逻辑使得一些所述码字被提供给第一解码器，并且其他所述码字被提供给第二解码器。码字可以具有不同的长度和/或不同的码率。此外，第一和第二解码器可以实现相同或不同的解码技术。

73. 发明申请

US20140355572A1 METHOD AND APPARATUS FOR AUTOMATIC GAIN CONTROL FOR TD-SCDMA SYSTEMS 审中-公开
标题翻译： TD-SCDMA系统自动增益控制方法与装置
公开(公告)号：US20140355572A1
公开(公告)日：2014-12-04
申请号：US14128353
申请日：2011-07-25
申请人： Aamod Dinkar Khandekar , Srikanth Gummadi , Kang Wang , Minkui Liu
发明人： Aamod Dinkar Khandekar , Srikanth Gummadi , Kang Wang , Minkui Liu
IPC分类号： H04W74/08 , H04W52/52
CPC分类号： H04W74/0891 , H04W52/52
摘要： A method and apparatus in wireless communications is provided. The method may include measuring received powers levels for a first window of samples, and computing a gain value based on the measured received powers levels. The method may also include determining an offset duration such that the first window of samples and a second window of samples both are included within a downlink region that has downlink power within a threshold level. The method may additionally include applying the gain value to the second window of samples, and the second window of samples may occur after the offset duration.
摘要翻译：提供了一种无线通信中的方法和装置。该方法可以包括测量第一采样窗口的接收功率电平，以及基于测量的接收功率电平来计算增益值。该方法还可以包括确定偏移持续时间，使得第一采样窗口和第二采样窗口都包括在具有阈值电平内的下行链路功率的下行链路区域内。该方法可以另外包括将增益值应用于第二采样窗口，并且第二采样窗口可以在偏移持续时间之后发生。

74. 发明授权

US08767726B2 Convergence sublayer for use in a wireless broadcasting system 有权
标题翻译：用于无线广播系统的收敛子层
公开(公告)号：US08767726B2
公开(公告)日：2014-07-01
申请号：US12906693
申请日：2010-10-18
申请人： Brian P Petry , Dennis P Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S Govind , William S Burchill , Seema Madan
发明人： Brian P Petry , Dennis P Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S Govind , William S Burchill , Seema Madan
IPC分类号： H04L12/56
CPC分类号： H04L65/601 , H04H20/12 , H04H20/26 , H04H20/67 , H04H20/95 , H04L47/621 , H04L65/4076 , H04L65/605 , H04N21/235 , H04N21/2362 , H04N21/2381 , H04N21/2383 , H04N21/242 , H04N21/26208 , H04N21/6131 , H04N21/64315 , H04N21/64322 , H04N21/64707
摘要： A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.
摘要翻译：公开了一种封装数据的方法和被配置为执行该方法的单频网络。接收数据分组的内容流，根据第一协议对内容流中的数据分组进行格式化。接收识别为内容流建立的容器大小的信息。根据第一协议格式化的数据分组被分段和打包以形成根据第二协议格式化的数据单元，并且基于容器大小对数据单元进行大小。根据第二协议格式化的数据单元被封装以形成第二协议数据分组。第二协议数据分组被提供给与单个频率网络中的一个或多个发射机同步的发射机，使得单个频率网络中的每个发射机广播包括第二协议数据分组的相同信号。

75. 发明申请

US20130028296A1 CHIP X2 CORRELATION HYPOTHESES USING CHIP X1 SAMPLES 审中-公开
标题翻译：使用芯片X1样品的芯片X2相关假设
公开(公告)号：US20130028296A1
公开(公告)日：2013-01-31
申请号：US13192003
申请日：2011-07-27
申请人： Aamod D. Khandekar , Dario Fertonani , Srikanth Gummadi
发明人： Aamod D. Khandekar , Dario Fertonani , Srikanth Gummadi
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , H04B2001/70724 , H04B2201/70707 , H04B2201/70713 , H04B2201/70727
摘要： A UE may store received samples of a wireless signal at cx1 to reduce memory usage, but then may correlate those samples with cx2 timing hypotheses to improve performance. The received sequence is resampled at cx2 instead of cx1. The UE still performs the correlation of the cx2 timing hypotheses for the performance gain, but the reference waveform is resampled with cx2 time offset. A Fast Fourier Transform (FFT) may be taken of the received and reference waveforms. In the frequency domain, resampling may be performed by multiplying the FFT of the reference waveform by a phase ramp—a pointwise multiplication in the frequency domain with a constant magnitude sequence whose phase varies linearly.
摘要翻译： UE可以以cx1存储无线信号的接收样本以减少存储器使用，但是然后可以将这些采样与cx2定时假设相关联以提高性能。接收的序列在cx2而不是cx1重采样。 UE仍然执行cx2定时假设与性能增益的相关性，但参考波形用cx2时间偏移重采样。可以对接收和参考波形进行快速傅里叶变换（FFT）。在频域中，重采样可以通过将参考波形的FFT乘以频域中的相位斜坡 - 点相乘乘以其相位线性变化的恒定幅度序列来执行。

76. 发明申请

US20110116500A1 CONVERGENCE SUBLAYER FOR USE IN A WIRELESS BROADCASTING SYSTEM 有权
标题翻译：在无线广播系统中使用的合并子层
公开(公告)号：US20110116500A1
公开(公告)日：2011-05-19
申请号：US12906693
申请日：2010-10-18
申请人： Brian P. Petry , Dennis P. Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
发明人： Brian P. Petry , Dennis P. Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
IPC分类号： H04L12/56
CPC分类号： H04L65/601 , H04H20/12 , H04H20/26 , H04H20/67 , H04H20/95 , H04L47/621 , H04L65/4076 , H04L65/605 , H04N21/235 , H04N21/2362 , H04N21/2381 , H04N21/2383 , H04N21/242 , H04N21/26208 , H04N21/6131 , H04N21/64315 , H04N21/64322 , H04N21/64707
摘要： A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.
摘要翻译：公开了一种封装数据的方法和被配置为执行该方法的单频网络。接收数据分组的内容流，根据第一协议对内容流中的数据分组进行格式化。接收识别为内容流建立的容器大小的信息。根据第一协议格式化的数据分组被分段和打包以形成根据第二协议格式化的数据单元，并且基于容器大小对数据单元进行大小。根据第二协议格式化的数据单元被封装以形成第二协议数据分组。第二协议数据分组被提供给与单个频率网络中的一个或多个发射机同步的发射机，使得单个频率网络中的每个发射机广播包括第二协议数据分组的相同信号。

77. 发明授权

US07912057B2 Convergence sublayer for use in a wireless broadcasting system 有权
标题翻译：用于无线广播系统的收敛子层
公开(公告)号：US07912057B2
公开(公告)日：2011-03-22
申请号：US11623034
申请日：2007-01-12
申请人： Brian D. Petry , Dennis P. Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
发明人： Brian D. Petry , Dennis P. Connors , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
IPC分类号： H04L12/28
CPC分类号： H04L65/601 , H04H20/12 , H04H20/26 , H04H20/67 , H04H20/95 , H04L47/621 , H04L65/4076 , H04L65/605 , H04N21/235 , H04N21/2362 , H04N21/2381 , H04N21/2383 , H04N21/242 , H04N21/26208 , H04N21/6131 , H04N21/64315 , H04N21/64322 , H04N21/64707
摘要： A wireless broadcast system includes receiving a data a stream by a convergence module. The convergence module partitions and encapsulates the transport packets into MAC protocol data units such that a size dimension of the encapsulated transport packets matches a size dimension of the MAC protocol data units. The MAC protocol data units are then provided to a transmitter that is synchronized to a plurality of transmitters in a single frequency network so that each transmitter in the network broadcast an identical signal that includes the MAC protocol data unit.
摘要翻译：无线广播系统包括通过汇聚模块接收数据流。汇聚模块将传输分组分解并封装到MAC协议数据单元中，使得封装的传输分组的大小维度与MAC协议数据单元的大小维度相匹配。然后将MAC协议数据单元提供给与单个频率网络中的多个发射机同步的发射机，使得网络中的每个发射机广播包括MAC协议数据单元的相同信号。

78. 发明申请

US20080170530A1 WIRELESS BROADCASTING SYSTEM 有权
标题翻译：无线广播系统
公开(公告)号：US20080170530A1
公开(公告)日：2008-07-17
申请号：US11623032
申请日：2007-01-12
申请人： Dennis P. Connors , Brian D. Petry , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
发明人： Dennis P. Connors , Brian D. Petry , Gene W. Marsh , Srikanth Gummadi , Keerthi S. Govind , William S. Burchill , Seema Madan
IPC分类号： H04J3/24
CPC分类号： H04N21/2362 , H04H20/67 , H04L5/023 , H04L27/2602 , H04N21/235 , H04N21/2381 , H04N21/2383 , H04N21/242 , H04N21/26208 , H04N21/6131 , H04N21/64315 , H04W72/005
摘要： A wireless broadcast system that collects content for distribution over a wireless communication network. At least one content stream is received and encapsulated into a stream of transport packets that are ruggedized for broadcast over the wireless communication link. The stream of transport packets are simultaneously broadcast as part of an identical signal from a plurality of synchronized transmitters in a single frequency network. The content can include multimedia data, such as audio/video data, movies, game, audio broadcasts, television network programs, or other types of multimedia content.
摘要翻译：无线广播系统，其收集通过无线通信网络分发的内容。至少一个内容流被接收并且被封装成通过无线通信链路进行广播的加固传输分组流。作为来自单个频率网络中的多个同步发射机的相同信号的一部分，同时广播传输分组流。内容可以包括诸如音频/视频数据，电影，游戏，音频广播，电视网络节目或其他类型的多媒体内容的多媒体数据。

79. 发明授权

US06917311B2 Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same 有权
标题翻译：正交前导编码器，正交前导码的编码方法和采用该正交前导码的多输入多输出通信系统
公开(公告)号：US06917311B2
公开(公告)日：2005-07-12
申请号：US10639418
申请日：2003-08-11
申请人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David P. Magee
发明人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David P. Magee
IPC分类号： H03M7/00 , H04B7/04 , H04L1/00 , H04L1/06 , H04L25/02 , H04L27/26
CPC分类号： H04L1/0078 , H04B7/04 , H04L1/06 , H04L25/0204 , H04L25/022 , H04L25/0226 , H04L27/2613
摘要： For use with a multiple-input, multiple-output (MIMO) transmitter, an orthogonal preamble encoder, a method of encoding orthogonal preambles and a communication system incorporating the encoder or the method. In one embodiment, the encoder includes: (1) a preamble supplement generator configured to provide a first long sequence preamble supplement to a first transmit antenna of the MIMO transmitter and (2) a preamble supplement coordinator coupled to the preamble supplement generator and configured to provide a second long sequence preamble supplement to a second transmit antenna of the MIMO transmitter, at least a portion of the second long sequence preamble supplement being a negation of the first long sequence preamble supplement.
摘要翻译：用于多输入多输出（MIMO）发射机，正交前导码编码器，对正交前导码进行编码的方法和结合编码器的通信系统或方法。在一个实施例中，所述编码器包括：（1）前导码补充生成器，被配置为向所述MIMO发射机的第一发射天线提供第一长序列前导码补充，以及（2）前缀补充协调器，其耦合到所述前导码补充生成器，向所述MIMO发射机的第二发射天线提供第二长序列前导码补充，所述第二长序列前同步码补码的至少一部分是所述第一长序列前同步码补码的否定。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式