Broadband cable network utilizing common bit-loading
    81.
    发明授权
    Broadband cable network utilizing common bit-loading 有权
    宽带有线网络利用普通的比特加载

    公开(公告)号:US08588250B2

    公开(公告)日:2013-11-19

    申请号:US13027030

    申请日:2011-02-14

    IPC分类号: H04J3/16

    摘要: A broadband cable network (“BCN”) for determining a common bit-loading modulation scheme for communicating between a plurality of nodes in the BCN is disclosed. The BCN may include a transmitting node within the plurality of nodes where the transmitting node is capable of sending a probe signal to the plurality of nodes, and at least one receiving node within the plurality of nodes in signal communication with the transmitting node. The at least one receiving node is capable of transmitting a first response signal in response to receiving the probe signal. The first response signal includes a first bit-loading modulation scheme determined by the at least one receiving node. The transmitting node is further capable of determining the common bit-loading modulation scheme from the first response signal.

    摘要翻译: 公开了一种用于确定用于在BCN中的多个节点之间通信的公共比特加载调制方案的宽带电缆网络(“BCN”)。 BCN可以包括多个节点内的发射节点,其中发射节点能够向多个节点发送探测信号,以及多个节点内的至少一个接收节点与发射节点进行信号通信。 响应于接收到探测信号,至少一个接收节点能够发送第一响应信号。 第一响应信号包括由至少一个接收节点确定的第一位加载调制方案。 发送节点还能够从第一响应信号确定公共比特加载调制方案。

    SIGNAL TRANSMISSION PARAMETER CONTROL USING CHANNEL SOUNDING
    84.
    发明申请
    SIGNAL TRANSMISSION PARAMETER CONTROL USING CHANNEL SOUNDING 有权
    使用通道声音的信号传输参数控制

    公开(公告)号:US20130122950A1

    公开(公告)日:2013-05-16

    申请号:US13460108

    申请日:2012-04-30

    申请人: Ron Porat

    发明人: Ron Porat

    IPC分类号: H04W88/08

    摘要: A base station (BTS) may instruct a client station (CS) to transmit sounding signals that the BTS may analyze to determine what adjustments, such as power, time, and/or frequency adjustment(s) should be made by the CS. The BTS may control when and how the sounding signals are sent by the CS. This helps reduce the possibility of adjustment signals transmitted by two or more CSs colliding. Thus, sounding signals transmitted by the CS in response to a request by the BTS can be received by the BTS with higher a probability of success. This permits the BTS to more accurately characterize the channel and to provide better adjustment of power level, frequency offset, and/or timing offset for more optimal communication. Such techniques can be used to reduce bit error rates and to improve the overall signal to noise ratio encountered by the system.

    摘要翻译: 基站(BTS)可以指示客户站(CS)发送BTS可以分析的探测信号,以确定CS应该进行哪些调整,诸如功率,时间和/或频率调整。 BTS可以控制CS的发送信号的时间和方式。 这有助于减少由两个或多个CS发生的调整信号的碰撞的可能性。 因此,响应于BTS的请求,由CS发送的探测信号可以由BTS以更高的成功概率接收。 这允许BTS更准确地表征信道,并且为了更优化的通信而提供功率电平,频率偏移和/或定时偏移的更好的调整。 这样的技术可以用于降低误码率并提高系统遇到的整体信噪比。

    Doppler adaptation using pilot patterns within single user, multiple user, multiple access, and/or MIMO wireless communications
    85.
    发明申请
    Doppler adaptation using pilot patterns within single user, multiple user, multiple access, and/or MIMO wireless communications 审中-公开
    在单用户,多用户,多路访问和/或MIMO无线通信中使用导频模式的多普勒适配

    公开(公告)号:US20120269142A1

    公开(公告)日:2012-10-25

    申请号:US13453998

    申请日:2012-04-23

    申请人: Ron Porat Vinko Erceg

    发明人: Ron Porat Vinko Erceg

    IPC分类号: H04W72/04 H03G3/20

    摘要: Doppler adaptation using pilot patterns within single user, multiple user, multiple access, and/or MIMO wireless communications. Within a communication system employing orthogonal frequency division multiplexing (OFDM) signaling, pilots may be adaptively and/or selectively located at different respective sub-carrier or tone locations within different respective symbols based on one or more patterns. In some implementations, decimation may also be performed such that not necessarily all respective tone or sub-carrier locations are covered within one particular group. Multiple respective groups may be employed to cover all possible tone or sub-carrier locations with at least one pilot over a particular number of symbols. In a receiver communication device operating using such decimation, interpolation over the decimated set of tones or sub-carriers may be made to effectuate channel estimate updates.

    摘要翻译: 在单用户,多用户,多路访问和/或MIMO无线通信中使用导频模式的多普勒适配。 在采用正交频分复用(OFDM)信令的通信系统中,导频可以基于一个或多个模式自适应地和/或选择性地位于不同相应符号内的不同相应子载波或音调位置。 在一些实现中,还可以执行抽取,使得不一定在一个特定组内覆盖所有相应的音调或子载波位置。 可以使用多个相应的组来覆盖在特定数量的符号上的至少一个导频的所有可能的音调或子载波位置。 在使用这种抽取操作的接收机通信设备中,可以对抽取的一组音调或子载波进行内插以实现信道估计更新。

    Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications
    86.
    发明申请
    Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
    在单用户,多用户,多路访问和/或MIMO无线通信中使用的前导码

    公开(公告)号:US20120269123A1

    公开(公告)日:2012-10-25

    申请号:US13453703

    申请日:2012-04-23

    IPC分类号: H04W4/00

    摘要: Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications. A selected preamble type is employed for use in generating a signal to be transmitted from one communication device to at least one other communication device. Depending upon a desired operational mode, as few as one preamble type, or two or more preamble types may be associated with a given operational mode. When operating in accordance with a given operational mode, a preamble type is selected from available preamble types of an operational mode. A preferred implementation may include two respective preamble types such that one preamble type is used for single user (SU) operation with transmit beamforming weights applied at the beginning of the packet or for open loop SU transmissions only, while the other preamble type, having an multiple user (MU) characteristic, is used for both SU beamforming and MU operations.

    摘要翻译: 在单用户,多用户,多路访问和/或MIMO无线通信中使用的前导码。 选择的前导码类型被用于生成要从一个通信设备发送到至少一个其他通信设备的信号。 根据期望的操作模式,可以将少至一个前同步码类型或两个或多个前导码类型与给定操作模式相关联。 当根据给定的操作模式操作时,从操作模式的可用前导码类型中选择前导码类型。 优选实现可以包括两个相应的前导码类型,使得一个前导码类型被用于单个用户(SU)操作,其中在分组的开始处应用的发送波束成形权重或仅用于开环SU传输,而另一个前导码类型具有 多用户(MU)特性用于SU波束形成和MU操作。

    Signal transmission parameter control using channel sounding
    87.
    发明授权
    Signal transmission parameter control using channel sounding 失效
    信号传输参数控制采用声道探测

    公开(公告)号:US08170601B2

    公开(公告)日:2012-05-01

    申请号:US13272678

    申请日:2011-10-13

    申请人: Ron Porat

    发明人: Ron Porat

    摘要: A base station (BTS) may instruct a client station (CS) to transmit sounding signals that the BTS may analyze to determine what adjustments, such as power, time, and/or frequency adjustment(s) should be made by the CS. The BTS may control when and how the sounding signals are sent by the CS. This helps reduce the possibility of adjustment signals transmitted by two or more CSs colliding. Thus, sounding signals transmitted by the CS in response to a request by the BTS can be received by the BTS with higher a probability of success. This permits the BTS to more accurately characterize the channel and to provide better adjustment of power level, frequency offset, and/or timing offset for more optimal communication. Such techniques can be used to reduce bit error rates and to improve the overall signal to noise ratio encountered by the system.

    摘要翻译: 基站(BTS)可以指示客户站(CS)发送BTS可以分析的探测信号,以确定CS应该进行哪些调整,诸如功率,时间和/或频率调整。 BTS可以控制CS的发送信号的时间和方式。 这有助于减少由两个或多个CS发生的调整信号的碰撞的可能性。 因此,响应于BTS的请求,由CS发送的探测信号可以由BTS以更高的成功概率接收。 这允许BTS更准确地表征信道,并且为了更优化的通信而提供功率电平,频率偏移和/或定时偏移的更好的调整。 这样的技术可以用于降低误码率并提高系统遇到的整体信噪比。

    Echo profile probe
    89.
    发明授权
    Echo profile probe 有权
    回波剖面探头

    公开(公告)号:US07995459B2

    公开(公告)日:2011-08-09

    申请号:US12473656

    申请日:2009-05-28

    IPC分类号: H04J11/00

    摘要: In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication channel between each node pair. The echo profile is used to calculate the cyclic prefix length needed for optimum communication from one node to the other.

    摘要翻译: 在正交频分复用(OFDM)通信网络中,节点将回波分布探测发送到网络中的其他节点。 回波分布探测器是允许通过每个节点对之间的通信信道表征唯一回波分布的消息。 回波分布用于计算从一个节点到另一个节点进行最佳通信所需的循环前缀长度。

    CLOSED FORM SINGULAR VALUE DECOMPOSITION
    90.
    发明申请
    CLOSED FORM SINGULAR VALUE DECOMPOSITION 失效
    封闭形式的单值分解

    公开(公告)号:US20110164700A1

    公开(公告)日:2011-07-07

    申请号:US12986635

    申请日:2011-01-07

    申请人: Ron Porat Yi Jiang

    发明人: Ron Porat Yi Jiang

    IPC分类号: H04B7/02

    摘要: The subject matter disclosed herein provides methods and apparatus for determining a singular value decomposition, providing feedback from a client station to a base station, and closed loop operation of a wireless system implementing multiple-input multiple-output (MIMO). The method may include determining one or more singular vectors using a closed form singular value decomposition. The one or more determined singular vectors may be provided to a precoder at the base station as feedback. The method may include aligning a phase of one or more singular vectors. The method may also include determining, at a client station, a plurality of singular vectors for channels used in a MIMO transmission from a base station to a client station. The client station may provide an indication to the base station regarding whether to use a singular value decomposition or a uniform channel decomposition. Related systems, apparatus, methods, and/or articles are also described.

    摘要翻译: 本文公开的主题提供了用于确定奇异值分解,提供从客户站到基站的反馈以及实现多输入多输出(MIMO)的无线系统的闭环操作的方法和装置。 该方法可以包括使用闭合形式奇异值分解来确定一个或多个奇异向量。 可以将一个或多个确定的奇异向量作为反馈提供给基站处的预编码器。 该方法可以包括对齐一个或多个奇异矢量的相位。 该方法还可以包括在客户端站处确定在从基站到客户站的MIMO传输中使用的信道的多个奇异向量。 客户端站可以向基站提供关于是使用奇异值分解还是均匀信道分解的指示。 还描述了相关系统,装置,方法和/或制品。