Practical M-ary demodulator using hard decision circuit and method of operation for use in a CDMA wireless network base station
    21.
    发明授权
    Practical M-ary demodulator using hard decision circuit and method of operation for use in a CDMA wireless network base station 失效
    使用硬判决电路的实际M-ary解调器和用于CDMA无线网络基站的操作方法

    公开(公告)号:US07095809B2

    公开(公告)日:2006-08-22

    申请号:US10037454

    申请日:2001-12-31

    CPC classification number: H04B1/707 H04B1/7115 H04J13/16

    Abstract: A demodulator for demodulating S possible orthogonal modulation codes received serially as binary data, wherein each of the S possible orthogonal modulation codes comprises M binary bits representing an N-bit data symbol and wherein M=2N. The demodulator comprises Logic 00, Logic 01, Logic 10, and Logic 11 input detectors, each of which compares M/2 sequential pairs of the M binary bits of the orthogonal modulation codes to a respective one of a Logic 00 value, a Logic 01 value, a Logic 10 value, or a Logic 11 value and outputs a [+1,+1] signal if a match occurs and outputs a [−1,−1] signal if a match does not occur. An input decision circuit detects a [+1,+1] signal output by one of the input detectors after a comparison of a jth sequential pair of the M/2 sequential pairs of the M binary bits. In response to the detection, the input decision circuit adds the [+1,+1] signal to one or more of S accumulators if a jth one of the M/2 code mask bits in a corresponding one of a Logic 00 code mask, a Logic 01 code mask, a Logic 10 code mask, or a Logic 11 code mask is a Logic 1.

    Abstract translation: 一种解调器,用于解调串行地作为二进制数据接收的S个可能的正交调制码,其中每个S个可能的正交调制码包括表示N位数据符号的M个二进制位,并且其中M = 2 N N。 解调器包括逻辑00,逻辑01,逻辑10和逻辑11输入检测器,每个输入检测器将正交调制码的M个二进制位的M / 2个连续对与逻辑00值,逻辑01 值,逻辑10值或逻辑11值,并且如果匹配发生则输出[+ 1,+ 1]信号,并且如果不发生匹配则输出[-1,-1]信号。 在比较M个二进制位的M / 2个顺序对的第j个顺序对之后,输入判定电路检测输入检测器之一输出的[+ 1,+ 1]信号。 响应于检测,输入判定电路将[+ 1,+ 1]信号添加到S个累加器中的一个或多个,如果在逻辑00代码掩码中相应的一个中的第一个M / 2码屏蔽位, 逻辑01代码掩码,逻辑10代码掩码或逻辑11代码掩码是逻辑1。

    Apparatus and method for reducing the peak-to-average power ratio of OFDM/OFDMA signals
    22.
    发明申请
    Apparatus and method for reducing the peak-to-average power ratio of OFDM/OFDMA signals 失效
    降低OFDM / OFDMA信号的峰均功率比的装置和方法

    公开(公告)号:US20060140296A1

    公开(公告)日:2006-06-29

    申请号:US11285780

    申请日:2005-11-22

    CPC classification number: H04L27/2618

    Abstract: An apparatus is provided for reducing the peak-to-average power ratio (PAPR) of a multicarrier transmission system. The apparatus comprises a detector for receiving a plurality of symbols to be transmitted and determining a peak amplitude of the plurality of symbols and a controller for determining if the peak amplitude associated with the plurality of symbols exceeds a predetermined threshold. If the peak amplitude exceeds the predetermined threshold, the apparatus generates at least one correction carrier signal. The at least one correction carrier signal is combined with a plurality of modulated carrier signals associated with the plurality of symbols to thereby reduce a peak-to-average power ratio associated with the plurality of modulated carrier signals.

    Abstract translation: 提供一种用于降低多载波传输系统的峰均功率比(PAPR)的装置。 该装置包括用于接收要发送的多个符号并确定多个符号的峰值幅度的检测器,以及用于确定与多个符号相关联的峰值幅度是否超过预定阈值的控制器。 如果峰值振幅超过预定阈值,则装置产生至少一个校正载波信号。 所述至少一个校正载波信号与与所述多个符号相关联的多个调制载波信号组合,从而减少与所述多个调制载波信号相关联的峰均功率比。

    Proxy mobile station using assignable mobile identifier to access a wireless network
    23.
    发明申请
    Proxy mobile station using assignable mobile identifier to access a wireless network 失效
    代理移动台使用可分配的移动标识符来访问无线网络

    公开(公告)号:US20060046647A1

    公开(公告)日:2006-03-02

    申请号:US10934912

    申请日:2004-09-02

    CPC classification number: H04W88/04 H04B7/155 H04W88/02

    Abstract: A proxy mobile station for retransmitting reverse channel signals from a mobile station to a base station of a wireless network. The proxy mobile station comprises: 1) a controller for receiving reverse channel data to be transmitted to the base station and transmitting the reverse channel data using an assigned mobile station identifier associated with the mobile station; and 2) a radio frequency transceiver for up-converting the encoded reverse channel data for transmission to the base station. The assigned mobile station is modifiable and may be modified by an external control device.

    Abstract translation: 一种用于从移动台向无线网络的基站重传反向信道信号的代理移动站。 代理移动台包括:1)控制器,用于接收要发送到基站的反向信道数据,并使用与移动台相关联的分配的移动台标识符发送反向信道数据; 以及2)射频收发器,用于对编码的反向信道数据进行上变频以传输到基站。 分配的移动台是可修改的,并且可以由外部控制设备修改。

    Apparatus and method for channel estimation and echo cancellation in a wireless repeater

    公开(公告)号:US20060040611A1

    公开(公告)日:2006-02-23

    申请号:US11145619

    申请日:2005-06-06

    CPC classification number: H04B7/15585

    Abstract: A system and method for channel estimation and echo cancellation in wireless system repeaters. A repeater with improved echo cancellation comprises an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna; a power amplifier connected between the input radio control element and the output radio control element; and a signal processing unit connected between the input radio control element and the output radio control element. The signal processing unit is configured to estimate the communication channel from the transmitting antenna to the receiving antenna to produce a channel estimation. The signal processing unit is further configured to perform echo cancellation based on the channel estimation.

    Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system
    25.
    发明申请
    Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system 失效
    一种用于在多载波CDMA通信系统中提高信噪比的装置和方法

    公开(公告)号:US20050265274A1

    公开(公告)日:2005-12-01

    申请号:US10841256

    申请日:2004-05-07

    Inventor: Joseph Cleveland

    Abstract: For use in a multi-carrier CDMA receiver, a noise reduction circuit for improving a signal-to-noise ratio of a multi-carrier signal corresponding to a predetermined sequence of chips. Each chip has a value of Logic 0 or Logic 1. The noise reduction circuit comprises a Fast Fourier Transform (FFT) circuit for receiving the multi-carrier signal and generating frequency-domain component signals. A sampling circuit generates a first sequence of samples of the frequency-domain component signals. A controller identifies samples in the first sample sequence corresponding to Logic 0 chips and identifies samples in the first sample sequence corresponding to Logic 1 chips. A randomizing circuit generates a second sample sequence by shifting positions within the first sample sequence of some of the identified samples corresponding to Logic 0 chips, or by shifting positions within the first sample sequence of some of the identified samples corresponding to Logic 1 chips.

    Abstract translation: 为了在多载波CDMA接收机中使用噪声降低电路,用于改善对应于预定的码片序列的多载波信号的信噪比。 每个芯片具有逻辑0或逻辑1的值。噪声降低电路包括用于接收多载波信号并产生频域分量信号的快速傅里叶变换(FFT)电路。 采样电路产生频域分量信号的第一采样序列。 控制器识别与逻辑0码片相对应的第一采样序列中的样本,并识别与逻辑1码片对应的第一采样序列中的样本。 随机化电路通过移位对应于逻辑0码片的一些所识别的样本的第一采样序列内的位置,或通过移位与逻辑1码片相对应的一些识别样本的第一采样序列内的位置来产生第二采样序列。

    Dynamically reconfigurable base station node and method
    26.
    发明申请
    Dynamically reconfigurable base station node and method 失效
    动态可重构基站节点和方法

    公开(公告)号:US20050197135A1

    公开(公告)日:2005-09-08

    申请号:US10795112

    申请日:2004-03-05

    CPC classification number: H04W88/10 H04W36/14 H04W36/26 H04W48/18

    Abstract: A base station node is provided that includes a radio frequency (RF) monitor and at least one signal processor. The RF monitor is operable to monitor traffic associated with a plurality of wireless communication devices to determine at least one requested load having a corresponding air interface standard. The signal processor is coupled to the RF monitor and is operable to be dynamically reconfigured to support the air interface standard corresponding to the requested load.

    Abstract translation: 提供了一种包括射频(RF)监视器和至少一个信号处理器的基站节点。 RF监视器可操作以监视与多个无线通信设备相关联的业务以确定具有对应空中接口标准的至少一个请求负载。 信号处理器耦合到RF监视器并且可操作以动态地重新配置以支持对应于所请求负载的空中接口标准。

    System and method for providing reliable hard handoffs between wireless networks
    27.
    发明申请
    System and method for providing reliable hard handoffs between wireless networks 审中-公开
    在无线网络之间提供可靠的硬切换的系统和方法

    公开(公告)号:US20050096052A1

    公开(公告)日:2005-05-05

    申请号:US10696502

    申请日:2003-10-29

    CPC classification number: H04W36/0066 H04W36/18

    Abstract: A border base station capable of providing reliable hard handoffs between a first wireless network and a second wireless network is provided that includes a base station controller, a first base transceiver station and a transition base transceiver station. The base station controller is operable to manage communications resources within the first wireless network. The first base transceiver station is coupled to the base station controller. The first base transceiver station is operable to provide communication for a mobile station in the first wireless network. The transition base transceiver station is coupled to the base station controller and is located in proximity to a second base transceiver station. The transition base transceiver station is operable to provide communication for the mobile station in the second wireless network. The second base transceiver station is part of the second wireless network and is operable to provide communication for the mobile station in the second wireless network.

    Abstract translation: 提供能够在第一无线网络和第二无线网络之间提供可靠的硬切换的边界基站,其包括基站控制器,第一基站收发器和转换基站收发台。 基站控制器可操作以管理第一无线网络内的通信资源。 第一基站收发台耦合到基站控制器。 第一基站收发器可操作以为第一无线网络中的移动台提供通信。 转换基站收发台耦合到基站控制器并且位于第二基站收发台附近。 转换基站收发台可操作以在第二无线网络中为移动站提供通信。 第二基站收发台是第二无线网络的一部分,并且可操作以为第二无线网络中的移动站提供通信。

    Stream control in a MIMO-enabled mesh network
    28.
    发明授权
    Stream control in a MIMO-enabled mesh network 有权
    支持MIMO的网状网络中的流控制

    公开(公告)号:US08705360B2

    公开(公告)日:2014-04-22

    申请号:US11297575

    申请日:2005-12-08

    Abstract: In a multiple-input, multiple-output (MIMO) enabled mesh network, streams for transmitting data from a node to a destination node are controlled based on next hop latency and available stream capacity at neighboring, next hop nodes. Routing information maintained and dynamically updated at each node includes latency information associated with each next hop for transmission from the node to a given destination node and current available stream capacity for such next hop nodes. A controller at the node utilizes that information to select one or more next hop nodes to which the data is forwarded as well as to determine a number of streams that may be initiated with each selected next hop node.

    Abstract translation: 在多输入多输出(MIMO)网格网络中,基于下一跳等待时间和相邻下一跳节点处的可用流容量来控制从节点到目的地节点的数据传输。 在每个节点处维护和动态更新的路由信息​​包括与从下一跳到每个下一跳相关联的延迟信息,用于从节点到给定目的地节点的传输以及用于这样的下一跳节点的当前可用流量。 节点处的控制器利用该信息来选择数据被转发到的一个或多个下一跳节点,以及确定可以利用每个选择的下一跳节点发起的数量的流。

    EDGE EFFECT
    29.
    发明申请
    EDGE EFFECT 失效
    边缘效应

    公开(公告)号:US20080266309A1

    公开(公告)日:2008-10-30

    申请号:US11741621

    申请日:2007-04-27

    CPC classification number: G06T11/001

    Abstract: A method, apparatus, and article of manufacture provide the ability to render an edge effect for an object. An object is obtained in a computer-generated rendering having vector geometry. An interior geometry is created for a fill of the object. Contour geometry is created for an outline stroke that covers an edge of the object. A proximity to the edge of the object is calculated for each pixel of the object and each pixel of the contour geometry. An effect is then rendered based on the proximities.

    Abstract translation: 方法,装置和制品提供了呈现对象的边缘效果的能力。 在具有向量几何的计算机生成的渲染中获得对象。 为对象的填充创建内部几何。 轮廓几何是为涵盖对象边缘的轮廓线创建的。 对物体的每个像素和轮廓几何的每个像素计算物体边缘的接近度。 然后基于近似值呈现效果。

    Apparatus and method for signal reception in multiple input multiple output (MIMO) communication system
    30.
    发明申请
    Apparatus and method for signal reception in multiple input multiple output (MIMO) communication system 有权
    多输入多输出(MIMO)通信系统中信号接收的装置和方法

    公开(公告)号:US20070201577A1

    公开(公告)日:2007-08-30

    申请号:US11705800

    申请日:2007-02-13

    CPC classification number: H04L1/06 H04L1/0045

    Abstract: A method for signal reception in a Multiple-Input-Multiple-Output (MIMO) communication system is provided. The method enhances the efficiency of signal reception in the MIMO system and simplifies the algorithms of signal reception and soft decoding metrics generation. In other words, soft decisions are generated according to correlations between metrics corresponding to least reliable bits based on MMSE linear estimation and noise variance estimation is provided to improve performance when an error is generated in channel matrix H estimation.

    Abstract translation: 提供了一种用于多输入多输出(MIMO)通信系统中的信号接收的方法。 该方法提高了MIMO系统中信号接收的效率,简化了信号接收和软解码度量生成算法。 换句话说,根据基于MMSE线性估计的与最不可靠比特对应的度量之间的相关性生成软判决,并且提供噪声方差估计以在信道矩阵H估计中产生错误时提高性能。

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