-
Patent Agency Ranking
1.发明申请Channel gain estimation in a rake receiver using complex weight generation (CWG) algorithms 失效使用复权重（CWG）算法的耙式接收机中的信道增益估计公开(公告)号：US20040156423A1
公开(公告)日：2004-08-12
申请号：US10718394
申请日：2003-11-20
Applicant: InterDigital Technology Corporation
Inventor： Bin Li , Alexander Reznik
IPC: H04B001/707
CPC classification number: H04L25/0232 , H04B1/712 , H04B2201/70701
Abstract: A channel estimation method which reduces the strain on resources of a Rake receiver using a complex weight gain (CWG) algorithm. In one embodiment, a nonadaptive algorithm is used to average blocks of pilot symbols from several slots. In another embodiment, an adaptive algorithm implements sliding window averaging or a recursive filter. Using a CWG algorithm reduces the memory and processor requirements of the Rake receiver.
Abstract translation: 一种信道估计方法，其使用复加权增益（CWG）算法来减少Rake接收机的资源的应变。 在一个实施例中，使用非自适应算法来平均来自几个时隙的导频符号块。 在另一个实施例中，自适应算法实现滑动窗口平均或递归滤波器。 使用CWG算法可以降低Rake接收机的内存和处理器要求。
-
公开(公告)号：US20040081258A1
公开(公告)日：2004-04-29
申请号：US10279238
申请日：2002-10-24
Applicant: InterDigital Technology Corporation
Inventor： Bin Li , Robert A. DiFazio , Donald M. Grieco , Ariela Zeira
IPC: H04L027/22
CPC classification number: H04L27/2331 , H04L25/03197 , H04L27/2332
Abstract: A method for differential phase evaluation of M-ary communication data is employed in which the data consists of N sequential symbols r1 . . . rN, each having one of M transmitted phases. Selected sequences of Nnull1 elements that represent possible sequences of phase differentials are evaluated using multiple-symbol differential detection. Using r1 as the reference for each phase differential estimate, sNnull1 phase differential sequences are selected in the form (P2i, P3i, . . . , PNi) for inull1 to s for evaluating said symbol set, where s is predetermined and 1
Abstract translation: 采用一种用于微分通信数据的差分相位估计的方法，其中数据由N个连续符号r1组成。 。 。 rN，每个都具有M个传输相中的一个。 使用多符号差分检测来评估代表可能的相位差序列的N-1个元素的选定序列。 使用r1作为每个相位差分估计的参考，以i = 1至s的形式（P2i，P3i，...，PNi）选择s
相位差分序列，用于评估所述符号集，其中s 是预定的，1 -
公开(公告)号：US20030189979A1
公开(公告)日：2003-10-09
申请号：US10269606
申请日：2002-10-11
Applicant: InterDigital Technology Corporation
Inventor： Bin Li , Robert A. DiFazio , Ariela Zeira
IPC: H04Q001/20
CPC classification number: H04L1/20 , H04B17/336
Abstract: A method for estimating signal-to-noise ratio (SNR) using a method with low bias that is effective for both positive SNRs and small to negative SNRs. The method is based on an iterative solution for the maximum likelihood estimate of the amplitude from which the SNR can be computed. The method is applicable for various modulated systems, including BPSK, QPSK and MPSK.
Abstract translation: 一种使用低偏置的方法估计信噪比（SNR）的方法，该方法对正SNR和小到负SNR均有效。 该方法基于可以从其计算SNR的幅度的最大似然估计的迭代解。 该方法适用于各种调制系统，包括BPSK，QPSK和MPSK。
-
4.发明申请Simple and robust digital code tracking loop for wireless communication systems 有权用于无线通信系统的简单稳健的数字代码跟踪循环公开(公告)号：US20040029609A1
公开(公告)日：2004-02-12
申请号：US10425176
申请日：2003-04-28
Applicant: InterDigital Technology Corporation
Inventor： Bin Li
IPC: H04B001/38 , H04M001/00
CPC classification number: H04B1/7085 , H04B1/7115 , H04B1/7117 , H04B2001/70706
Abstract: A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes the implementations of despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals.
Abstract translation: 一种简单而鲁棒的CTL用于通过无线多径衰落信道发送的扩频信号的多径分量的时间跟踪。 数字代码跟踪循环包括通过使用伪噪声序列来解扩早期和晚期数据样本的实现，由解扩生成的误差信号输出以及多个准时，早期和晚期样本的调整，数据速率 作为误差信号的数据速率的分数比例提供的控制信号。
-
公开(公告)号：US20040240586A1
公开(公告)日：2004-12-02
申请号：US10867508
申请日：2004-06-14
Applicant: InterDigital Technology Corporation
Inventor： Bin Li , Robert A. DiFazio , Ariela Zeira
IPC: H04L027/22
CPC classification number: H04L1/20 , H04B17/336
Abstract: An apparatus and method for estimation of signal-to-noise ratio (SNR) with low bias that is effective for both positive SNRs and small to negative SNRs. The estimation is based on an iterative solution for the maximum likelihood estimate of the amplitude from which the SNR can be computed. The estimation is applicable for various modulated systems, including BPSK, QPSK and MPSK.
Abstract translation: 用于估计具有低偏差的信噪比（SNR）的装置和方法，其对于正SNR和小到负SNR均有效。 该估计基于可以从其计算SNR的幅度的最大似然估计的迭代解。 该估计适用于各种调制系统，包括BPSK，QPSK和MPSK。
-
-
-
-
Search Results
5
records
(took 0.028 seconds)
