METHODS AND APPARATUS FOR TRANSMITTER IDENTIFICATION IN A WIRELESS NETWORK
    4.
    发明申请
    METHODS AND APPARATUS FOR TRANSMITTER IDENTIFICATION IN A WIRELESS NETWORK 审中-公开
    无线网络中发射机识别的方法和设备

    公开(公告)号:US20090028100A1

    公开(公告)日:2009-01-29

    申请号:US11834654

    申请日:2007-08-06

    IPC分类号: H04Q7/00 H04L27/28

    摘要: Methods and apparatus for transmitter identification in a wireless network are disclosed. In an example, a method is provided that encodes pilot information on a first portion of a number of subcarriers in a symbol within a pilot positioning channel for an active transmitter. The method further includes encoding transmitter identification information on a second dedicated portion of the number of subcarriers of the symbol. The method also encompasses including a transmitter allocation field that signals the number of succeeding symbols that will be used by the transmitter for transmitting any other information in an interference free manner. In another example, a method is provided that receives a symbol having a number of subcarriers from a transmitter. A channel estimate and an energy measurement of the symbol using a first portion of the subcarriers. A dedicated second portion of the number of subcarriers in the symbol are then decoded to determine the transmitter identification information.

    摘要翻译: 公开了用于无线网络中的发射机识别的方法和装置。 在一个示例中,提供了一种方法,其对于有源发射机的导频定位信道内的符号中的多个子载波的第一部分上的导频信息进行编码。 该方法还包括在符号的子载波数的第二专用部分上编码发射机识别信息。 该方法还包括发射机分配字段,其指示将由干扰自由方式发送用于发送任何其它信息的发射机将使用的后续符号的数量。 在另一示例中,提供了一种从发射机接收具有多个子载波的符号的方法。 使用子载波的第一部分的信号估计和符号的能量测量。 然后对符号中的子载波数量的专用第二部分进行解码以确定发射机识别信息。

    Methods and apparatus for time tracking using assistance from TDM pilots in a communication network
    8.
    发明授权
    Methods and apparatus for time tracking using assistance from TDM pilots in a communication network 有权
    在通信网络中使用TDM导频协助进行时间跟踪的方法和装置

    公开(公告)号:US08605690B2

    公开(公告)日:2013-12-10

    申请号:US12917789

    申请日:2010-11-02

    摘要: Methods and apparatus for time tracking using assistance from TDM pilots in a communication network. In an aspect, a method is provided for time tracking in a device operating on a communication network, wherein the device performs a time tracking algorithm. The method includes determining a delay spread, and modifying at least one parameter used by the time tracking algorithm based on the delay spread. In another aspect, an apparatus is provided for time tracking in a device operating on a communication network, wherein the device performs a time tracking algorithm. The apparatus includes computation logic for determining a delay spread, and control logic for modifying at least one parameter used by the time tracking algorithm based on the delay spread.

    摘要翻译: 在通信网络中使用TDM导频协助进行时间跟踪的方法和装置。 在一方面,提供了一种用于在通信网络上操作的设备中进行时间跟踪的方法,其中该设备执行时间跟踪算法。 该方法包括确定延迟扩展,以及基于延迟扩展修改由时间跟踪算法使用的至少一个参数。 在另一方面,提供了一种用于在通信网络上操作的设备中进行时间跟踪的设备,其中该设备执行时间跟踪算法。 该装置包括用于确定延迟扩展的计算逻辑,以及用于基于延迟扩展修改由时间跟踪算法使用的至少一个参数的控制逻辑。

    Methods and apparatus for signal and interference energy estimation in a communication system
    10.
    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

    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。