利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

268 条记录 (耗时 0.041 秒)

    CHANNEL ESTIMATION
    41.
    发明申请
    CHANNEL ESTIMATION 有权
    频道估计

    公开(公告)号：US20100040179A1

    公开(公告)日：2010-02-18

    申请号：US12191427

    申请日：2008-08-14

    申请人： Taesang Yoo ,  Yongbin Wei ,  Peter Gaal

    发明人： Taesang Yoo ,  Yongbin Wei ,  Peter Gaal

    IPC分类号： H04B1/10

    CPC分类号： H04L25/0204 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03522

    摘要： Aspects describe channel estimation in an OFDM system. Baseline DFT-based channel estimation can be performed and scaling can be applied to mitigate distortion in the DFT-based estimations. In some aspects, baseline DFT-based channel estimation can be performed and tones for which DFT-based estimate is deemed unreliable can have MMSE based processing applied locally. If orthogonal sequence is deemed excessive, orthogonal sequence cancellation can be applied prior to the MMSE based processing.

    摘要翻译： 方面描述OFDM系统中的信道估计。 可以执行基于基于DFT的信道估计，并且可以应用缩放来减轻基于DFT的估计中的失真。 在一些方面，可以执行基于基于DFT的信道估计，并且基于DFT的估计被认为不可靠的音调可以在本地应用基于MMSE的处理。 如果认为正交序列过大，则可以在基于MMSE的处理之前应用正交序列消除。

    Combining grant, acknowledgement, and rate control commands
    42.
    发明申请
    Combining grant, acknowledgement, and rate control commands 有权
    组合授权，确认和速率控制命令

    公开(公告)号：US20050030911A1

    公开(公告)日：2005-02-10

    申请号：US10780824

    申请日：2004-02-17

    申请人： Edward Tiedemann ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga Malladi ,  David Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    发明人： Edward Tiedemann ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga Malladi ,  David Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    IPC分类号： H04B7/26 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W28/22 ,  H04W72/14 ,  H04B7/005 ,  H04B7/204

    CPC分类号： H04W72/14 ,  H04B7/264 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1819

    摘要： Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.

    摘要翻译： 本文公开的实施例解决了本领域中需要减少开销控制的需要，其具有根据需要调整传输速率的能力。 一方面，第一信号表示解码子包的确认，以及是否生成速率控制指令，第二信号在生成一个信号时有条件地指示速率控制指令。 在另一方面，可以与确认同时产生许可。 在另一方面，移动站监视第一信号，有条件地监视由第一信号指示的第二信号，并且可以监视包括授权的第三信号。 在另一方面，一个或多个基站发射各种信号中的一个或多个。 还提出了各种其他方面。 这些方面具有提供基于授权的控制的灵活性的优点，同时在使用速率控制命令时利用较低的开销，从而提高系统利用率，增加容量和吞吐量。

    Orthogonal reference signal permutation
    43.
    发明授权
    Orthogonal reference signal permutation 失效
    正交参考信号置换

    公开(公告)号：US08526524B2

    公开(公告)日：2013-09-03

    申请号：US12055827

    申请日：2008-03-26

    申请人： Peter Gaal ,  Yongbin Wei

    发明人： Peter Gaal ,  Yongbin Wei

    IPC分类号： H04B7/02

    CPC分类号： H04W56/0055 ,  H04J13/00 ,  H04J13/004 ,  H04J13/18 ,  H04L25/0226

    摘要： A method for a wireless communication system is provided. The method includes analyzing a set of signal sources that are operably associated with a set of time domain windows. Often, the method periodically switches the association between the set of time domain windows and the set of signal sources in order to facilitate a determination of one or more signal paths generated by the signal sources.

    摘要翻译： 提供了一种用于无线通信系统的方法。 该方法包括分析与一组时域窗口可操作地相关联的一组信号源。 通常，该方法周期性地切换该组时间窗口和该组信号源之间的关联，以便于确定由信号源产生的一个或多个信号路径。

    Combining grant, acknowledgement, and rate control commands
    44.
    发明授权
    Combining grant, acknowledgement, and rate control commands 有权
    组合授权，确认和速率控制命令

    公开(公告)号：US08489949B2

    公开(公告)日：2013-07-16

    申请号：US10780824

    申请日：2004-02-17

    申请人： Edward G. Tiedemann, Jr. ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga P. Malladi ,  David Puig Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    发明人： Edward G. Tiedemann, Jr. ,  Aleksandar Damnjanovic ,  Avinash Jain ,  Durga P. Malladi ,  David Puig Oses ,  Peter Gaal ,  Stein Lundby ,  Sandip Sarkar ,  Tao Chen ,  Yongbin Wei ,  Serge Willenegger

    IPC分类号： G08C25/02

    CPC分类号： H04W72/14 ,  H04B7/264 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1819

    摘要： Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.

    摘要翻译： 本文公开的实施例解决了本领域中需要减少开销控制的需要，其具有根据需要调整传输速率的能力。 一方面，第一信号表示解码子包的确认，以及是否生成速率控制指令，第二信号在生成一个信号时有条件地指示速率控制指令。 在另一方面，可以与确认同时产生许可。 在另一方面，移动站监视第一信号，有条件地监视由第一信号指示的第二信号，并且可以监视包括授权的第三信号。 在另一方面，一个或多个基站发射各种信号中的一个或多个。 还提出了各种其他方面。 这些方面具有提供基于授权的控制的灵活性的优点，同时在使用速率控制命令时利用较低的开销，从而提高系统利用率，增加容量和吞吐量。

    Frequency tracking loop for wireless communications
    45.
    发明授权
    Frequency tracking loop for wireless communications 有权
    频率跟踪循环用于无线通信

    公开(公告)号：US08385276B2

    公开(公告)日：2013-02-26

    申请号：US12500517

    申请日：2009-07-09

    申请人： Byoung-Hoon Kim ,  Peter Gaal ,  Yongbin Wei

    发明人： Byoung-Hoon Kim ,  Peter Gaal ,  Yongbin Wei

    IPC分类号： H04W4/00

    CPC分类号： H04L27/2657 ,  H04L27/2676 ,  H04L27/2695 ,  H04L27/3845

    摘要： Systems and methodologies are described that facilitate computing discriminator signals for frequency tracking in wireless communications. The discriminator signal can be computed based at least in part on representations of a received signal shifted upward by a portion of a frequency tone and downward by the portion of the frequency tone. The shifted signals can be summed, and a dot product of the summed signals and a channel estimation of the original signal can be computed to remove uncertain frequency response due to fading. The discriminator signal can be computed as the imaginary portion of the dot product. A frequency error offset can be determined from the discriminator signal and applied to a receiver to tune alignment of the receiver with frequencies of received signals.

    摘要翻译： 描述了在无线通信中促进用于频率跟踪的鉴别器信号的系统和方法。 可以至少部分地基于由向上移动频率一部分并且向下移动频率音调的部分的接收信号的表示来计算鉴别器信号。 移位的信号可以相加，并且可以计算求和的信号和原始信号的信道估计的积积以消除由于衰落引起的不确定的频率响应。 鉴别器信号可以计算为点积的虚部。 可以根据鉴别器信号确定频率误差偏移，并将其应用于接收机，以便将接收机与接收信号的频率进行对准。

    HSDPA system with reduced inter-user interference
    46.
    发明授权
    HSDPA system with reduced inter-user interference 有权
    HSDPA系统减少了用户间干扰

    公开(公告)号：US07889755B2

    公开(公告)日：2011-02-15

    申请号：US11376604

    申请日：2006-03-14

    申请人： Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei

    发明人： Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei

    IPC分类号： H04J3/26

    CPC分类号： H04L1/0029 ,  H04L1/0003 ,  H04L1/0025

    摘要： In a wireless network (100) with HSDPA-enabled user equipment devices (130), the base transceiver station (120) transmits to each HSDPA-enabled UE information regarding allocation of HSDPA codes and associated modulation techniques for other HSDPA-enabled UEs. Using this additional control information, each UE configures decision feedback filter of its equalizer to reduce inter-user interference. The additional control information may be transmitted in a packet (300) that includes a CRC portion (310) with the packet's CRC masked by a common ID, which is known to the HSDPA-enabled UEs. To reduce the number of bits needed to transmit the additional control information, the HSDPA codes used with a particular modulation technique are allocated consecutively. For each modulation technique, only the beginning code and the total number of codes need be known to the UEs. The number of codes used with each modulation technique may be allowed to change once in several TTIs.

    摘要翻译： 在具有支持HSDPA的用户设备（130）的无线网络（100）中，基站收发器（120）向支持HSDPA的每个UE发送关于其他支持HSDPA的UE的HSDPA代码分配和相关调制技术的信息。 使用该附加控制信息，每个UE配置其均衡器的判决反馈滤波器以减少用户间干扰。 附加控制信息可以在包括CRC部分（310）的分组（300）中发送，其中分组的CRC被公共ID掩蔽，这是启用HSDPA的UE已知的。 为了减少发送附加控制信息所需的位数，连续分配与特定调制技术一起使用的HSDPA码。 对于每个调制技术，只有起始码和代码总数需要为UE所知。 可以允许每个调制技术使用的代码数量在几个TTI中改变一次。

    Acknowledging broadcast transmissions
    48.
    发明授权
    Acknowledging broadcast transmissions 失效
    承认广播传输

    公开(公告)号：US07548509B2

    公开(公告)日：2009-06-16

    申请号：US10959517

    申请日：2004-10-05

    申请人： Edward G. Tiedemann, Jr. ,  Yongbin Wei ,  Peter Gaal ,  Sai Yiu Duncan Ho

    发明人： Edward G. Tiedemann, Jr. ,  Yongbin Wei ,  Peter Gaal ,  Sai Yiu Duncan Ho

    IPC分类号： H04J11/00 ,  H04B7/216

    CPC分类号： H04L1/1671 ,  H04L1/08 ,  H04L2001/0093

    摘要： Methods and apparatus are presented for acknowledging broadcast transmissions. An acknowledgment channel is designed for acknowledging the success or failure of a transmission on a dedicated channel and on a broadcast channel. Acknowledgments are generated based on whether a new orthogonal space is sent to a remote station or not. Moreover, an acknowledgment to the broadcast transmission is generated when an acknowledgment is needed for a dedicated transmission. The two acknowledgments are combined and sent to a base station.

    摘要翻译： 呈现用于确认广播传输的方法和装置。 确认信道被设计用于确认专用信道和广播信道上的传输的成功或失败。 基于是否将新的正交空间发送到远程站而产生确认。 此外，当专用传输需要确认时，产生对广播传输的确认。 两个确认结合并发送到基站。

    Sending transmission format information on dedicated channels
    50.
    发明授权
    Sending transmission format information on dedicated channels 有权
    在专用通道上发送传输格式信息

    公开(公告)号：US07161971B2

    公开(公告)日：2007-01-09

    申请号：US10135779

    申请日：2002-04-29

    申请人： Edward G. Tiedemann, Jr. ,  Yongbin Wei ,  Peter Gaal ,  Sai Yiu Duncan Ho

    发明人： Edward G. Tiedemann, Jr. ,  Yongbin Wei ,  Peter Gaal ,  Sai Yiu Duncan Ho

    IPC分类号： H04B1/69

    CPC分类号： H04J13/0048 ,  H04J13/18

    摘要： Transmissions on the dedicated channel are encoded using a set of paramaters that are picked from a large selection of potential parameters. If the remote station does not know the particular set of parameters that were used by a base station, then the remote station would have to attempt to decode the transmission using every set of parameters, until the transmission is decoded correctly. This is an inefficient methodology. Hence, transmission format information is typically transmitted on a broadcast channel so that a remote station could receive the transmission format information. However, the broadcast channel has reliability problems. New methods and apparatus are presented to allow a base station to determine an overlapping set of Walsh code sequences that can be used to send the transmission format information on the dedicated channel, rather than a broadcast channel. Using the overlapping set allows the remote station to decode the information.

    摘要翻译： 使用从大量潜在参数中选出的一组参数来编码专用信道上的传输。 如果远程站不知道基站使用的特定参数集合，则远程站将不得不尝试使用每组参数对传输进行解码，直到传输被正确解码。 这是一种效率低下的方法。 因此，通常在广播信道上发送传输格式信息，使得远程站可以接收传输格式信息。 然而，广播频道具有可靠性问题。 提出了新的方法和装置，以允许基站确定可用于在专用信道而不是广播信道上发送传输格式信息的沃尔什码序列的重叠集合。 使用重叠集允许远程站对信息进行解码。