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101. 发明授权

US08036180B2 Random access channel preamble 有权
标题翻译：随机接入信道前导码
公开(公告)号：US08036180B2
公开(公告)日：2011-10-11
申请号：US12430414
申请日：2009-04-27
申请人： Stephen G. Dick , Charles A. Dennean , Eldad M. Zeira , Jung-Lin Pan , Sung-Hyuk Shin , Ariela Zeira
发明人： Stephen G. Dick , Charles A. Dennean , Eldad M. Zeira , Jung-Lin Pan , Sung-Hyuk Shin , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B7/2628 , H04B1/707 , H04B1/7077 , H04B1/7093 , H04J13/00 , H04J13/10
摘要： One out of sixteen preamble signatures is selected. A code is produced based on the selected preamble signature. The produced code is phase rotated to produce a processed preamble signature signal. The processed preamble signature signal is used in processing the CDMA RACH signal and the CDMA RACH signal is used to access a CDMA system.
摘要翻译：选择十六个前缀签名中的一个。基于所选择的前导签名生成代码。产生的代码被相位旋转以产生经处理的前导签名信号。经处理的前导签名信号用于处理CDMA RACH信号，CDMA RACH信号用于接入CDMA系统。

102. 发明授权

US08023399B2 Channel estimation in a wireless communication system 失效
标题翻译：无线通信系统中的信道估计
公开(公告)号：US08023399B2
公开(公告)日：2011-09-20
申请号：US11894282
申请日：2007-08-20
申请人： Jung-Lin Pan , Younglok Kim , Ariela Zeira
发明人： Jung-Lin Pan , Younglok Kim , Ariela Zeira
IPC分类号： H04J11/00 , H04B7/216 , H04B1/69 , H03D1/04
CPC分类号： H04L25/0244 , H04L25/0224
摘要： A plurality of communication bursts are transmitted substantially simultaneously in a time slot of a time division duplex/code division multiple access communication system. The communication system has a maximum number of K midamble shifts. Each burst has an assigned midamble. Each midamble is a shifted version of a basic midamble code having a period of P. A combined signal is received. The combined signal includes a received version of each of the communication burst's midambles. A P by P square circulant matrix is constructed including the K midamble shifts. A channel response is determined for each of the K midamble shifts using a prime factor algorithm (PFA) discrete Fourier transform (DFT) algorithm, the received combined signal and the P by P square circulant matrix. The PFA DFT algorithm has a plurality of stages. Each stage has P inputs.
摘要翻译：在时分双工/码分多址通信系统的时隙中基本上同时发送多个通信脉冲串。通信系统具有最大数量的K个中间码位移。每个突发都有一个指定的中间码。每个中间码是具有周期为P的基本中间码的移位版本。接收组合信号。组合信号包括每个通信突发的中间码的接收版本。构造P平方循环矩阵的P包括K个中间码位移。使用素数因子算法（PFA）离散傅里叶变换（DFT）算法，接收的组合信号和P乘P平方循环矩阵，为每个K中间码位移确定信道响应。 PFA DFT算法具有多个阶段。每个阶段都有P个输入。

103. 发明授权

US07822103B2 Fast joint detection base station 有权
标题翻译：快速联合检测基站
公开(公告)号：US07822103B2
公开(公告)日：2010-10-26
申请号：US12290772
申请日：2008-11-03
申请人： Parthapratim De , Kyle Jung-Lin Pan , Ariela Zeira
发明人： Parthapratim De , Kyle Jung-Lin Pan , Ariela Zeira
IPC分类号： H04B1/69 , H04B7/216
CPC分类号： H04B1/7105
摘要： A code division multiple access base station receives K data signals over a shared spectrum. The base station receives and samples a combined signal having the K transmitted data signals. A combined channel response matrix is produced. A block column of a cross correlation matrix is determined using the combined channel response matrix. Each block entry of the block column is a K by K matrix. A fourier transform of a complex conjugate transpose of the combined channel response matrix multiplied to the combined signal samples is taken. An inverse of a fourier transform of each block entry is multiplied to a result of the fourier transform to produce a fourier transform of the data vector. An inverse fourier transform of the data vector fourier transform is taken to produce data of the K signals.
摘要翻译：码分多址基站通过共享频谱接收K个数据信号。基站接收并采样具有K个发送的数据信号的组合信号。产生组合的通道响应矩阵。使用组合信道响应矩阵来确定互相关矩阵的块列。块列的每个块条目是K乘K矩阵。采用乘以组合信号样本的组合信道响应矩阵的复共轭转置的傅立叶变换。将每个块条目的傅立叶变换的倒数乘以傅里叶变换的结果，以产生数据向量的傅立叶变换。采用数据向量傅立叶变换的逆傅立叶变换来产生K信号的数据。

104. 发明授权

US07778232B2 Multiuser detector for variable spreading factors 有权
标题翻译：用于可变扩散因子的多用户检测器
公开(公告)号：US07778232B2
公开(公告)日：2010-08-17
申请号：US11588454
申请日：2006-10-27
申请人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
发明人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
IPC分类号： H04B7/216 , H04J1/16
CPC分类号： H04B1/7105 , H04B1/7093 , H04B1/71052 , H04B2201/70703 , H04B2201/70705
摘要： A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.
摘要翻译：一种多用户检测器方法和接收机，其检测和解码具有不同扩展因子的同步或异步CDMA子信道，并降低计算复杂度。多用户接收机与使用Cholesky分解的ZF-BLE，MMSE，去相关检测器等兼容，以最小化数字运算。接收器和方法将表示各个用户的响应特性的系统传输响应矩阵的列排列成表示针对给定的接收数据块的多个匹配滤波器响应的总系统传输响应矩阵。当与Cholesky分解结合使用时，本发明在并行匹配滤波之前减少了所需数学运算的数量。

105. 发明申请

US20100177743A1 METHOD AND APPARATUS FOR BLIND CODE DETECTION 失效
标题翻译：用于盲码检测的方法和装置
公开(公告)号：US20100177743A1
公开(公告)日：2010-07-15
申请号：US12729467
申请日：2010-03-23
申请人： John W. Haim , Hyun-Seok Oh , Younglok Kim , Ariela Zeira , Robert A. DiFazio
发明人： John W. Haim , Hyun-Seok Oh , Younglok Kim , Ariela Zeira , Robert A. DiFazio
IPC分类号： H04B7/216
CPC分类号： H04B1/70735 , H04B1/7105
摘要： The present invention is a receiver which includes a blind code detection device for determining the identity of a plurality of channels over which information is to be transmitted when the identity of all channels is not known by the receiver. The blind code detection device generates a candidate channel list filled with the identify of selected channels out of the plurality of channels. A multi-user detection device, responsive to the blind code detection device, processes those channels in the candidate code list.
摘要翻译：本发明是一种接收机，其包括盲码检测装置，用于当接收机不知道所有信道的身份时，确定要发送信息的多个信道的身份。盲代码检测装置生成填充有多个信道中所选择的信道的标识的候选信道列表。响应于盲代码检测设备的多用户检测设备处理候选代码列表中的那些信道。

106. 发明授权

US07706482B2 Algorithm for multiple-symbol differential detection 失效
标题翻译：多符号差分检测算法
公开(公告)号：US07706482B2
公开(公告)日：2010-04-27
申请号：US12288630
申请日：2008-10-21
申请人： Bin Li , Robert A. DiFazio , Donald M. Grieco , Ariela Zeira
发明人： Bin Li , Robert A. DiFazio , Donald M. Grieco , Ariela Zeira
IPC分类号： H04L27/06
CPC分类号： H04L27/2331 , H04L25/03197 , H04L27/2332
摘要： 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 N−1 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, sN−1 phase differential sequences are selected in the form (P2i, P3i, . . . , PNi) for i=1 to s for evaluating said symbol set, where s is predetermined and 1
摘要翻译：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sN-1相位差分序列，用于评估所述符号集，其中s是预定的， 1

107. 发明授权

US07697953B2 Outer loop transmit power control using channel-adaptive processing 失效
标题翻译：外环使用信道自适应处理发送功率控制
公开(公告)号：US07697953B2
公开(公告)日：2010-04-13
申请号：US11365142
申请日：2006-03-01
申请人： Chang-Soo Koo , Ariela Zeira , Donald M. Grieco , Sung-Hyuk Shin
发明人： Chang-Soo Koo , Ariela Zeira , Donald M. Grieco , Sung-Hyuk Shin
IPC分类号： H04B7/00 , H04W72/00
CPC分类号： H04W52/228 , H04W52/08 , H04W52/12 , H04W52/143 , H04W52/146 , H04W52/225 , H04W52/24
摘要： The present invention is a system and method which controls outer loop transmit power for transmission power of an uplink/downlink communication in a wireless communication system. The system receives a communication from a base station and determines an error rate on the received communication. The system then distinguishes between static and dynamic channels, produces a static adjustment value, and characterizes the dynamic channels to generate a dynamic adjustment value. The target power level is then adjusted by the static and dynamic adjustment values, setting the transmission power level.
摘要翻译：本发明是一种在无线通信系统中控制上行链路/下行链路通信的发送功率的外部环路发送功率的系统和方法。系统接收来自基站的通信，并确定接收到的通信的错误率。然后，系统区分静态和动态通道，产生静态调整值，并表征动态通道以产生动态调整值。然后通过静态和动态调整值调整目标功率电平，设置发射功率电平。

108. 发明申请

US20100074242A1 SIMPLE BLOCK SPACE TIME TRANSMIT DIVERSITY USING MULTIPLE SPREADING CODES 有权
标题翻译：使用多个扩展代码的简单块空间时间传输多样性
公开(公告)号：US20100074242A1
公开(公告)日：2010-03-25
申请号：US12627630
申请日：2009-11-30
申请人： Younglok Kim , Ariela Zeira
发明人： Younglok Kim , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B1/707 , H04B7/0697 , H04L1/0618 , H04L1/0631 , H04L25/0202 , H04L25/03866
摘要： A base station and user equipment (UE) for use in a CDMA communication system are disclosed. The base station includes a first and second antenna for transmitting first and second communication bursts. The first channelization device spreads data using a first channelization code and the second channelization device spreads the data using a second channelization code. The UE has a data detection device for receiving a signal including the first and second communication bursts.
摘要翻译：公开了一种用于CDMA通信系统的基站和用户设备（UE）。基站包括用于发送第一和第二通信突发的第一和第二天线。第一信道化设备使用第一信道化码扩展数据，并且第二信道化设备使用第二信道化码扩展数据。 UE具有用于接收包括第一和第二通信突发的信号的数据检测装置。

109. 发明申请

US20090129447A1 EFFICIENT JOINT DETECTION 失效
标题翻译：有效的联合检测
公开(公告)号：US20090129447A1
公开(公告)日：2009-05-21
申请号：US12358739
申请日：2009-01-23
申请人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
发明人： Jaeyoung Kwak , John W. Haim , Ariela Zeira , Jung-Lin Pan
IPC分类号： H04B1/707
CPC分类号： H04B1/71052 , H04B2201/70707
摘要： K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals.
摘要翻译： K个数据信号或脉冲串以码分多址通信格式通过共享频谱发送。组合信号在共享频谱上被接收和采样，作为多个接收的矢量版本。组合信号包括K个发送的数据信号。产生多个系统矩阵和使用K个数据信号的代码和估计的脉冲响应的相关协方差矩阵。每个系统矩阵对应于接收到的矢量版本。系统和协方差矩阵被扩展和近似为块循环矩阵。每个扩展和近似的系统和协方差矩阵的对角矩阵由质数因子算法 - 快速傅里叶变换（PFA-FFT）确定，而不分割矩阵。收到的矢量版本被扩展。采用对角矩阵和扩展接收向量版本的乘积。通过PFA-FFT对乘积的结果执行逆块离散傅里叶变换，以产生K个数据信号的估计数据。

110. 发明申请

US20090109935A1 ADAPTIVE UPLINK/DOWNLINK TIMESLOT ASSIGNMENT IN A HYBRID WIRELESS TIME DIVISION MULTIPLE ACCESS/CODE DIVISION MULTIPLE ACCESS COMMUNICATION SYSTEM 有权
标题翻译：混合无线时间段自适应上行链路/下行链路时间分配多路访问/代码段多路访问通信系统
公开(公告)号：US20090109935A1
公开(公告)日：2009-04-30
申请号：US12348637
申请日：2009-01-05
申请人： Jung-Lin Pan , Ariela Zeira
发明人： Jung-Lin Pan , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04W72/0446 , H04B7/2618 , H04L5/0073 , H04L5/14 , H04W52/143 , H04W72/0413 , H04W72/042 , H04W72/082 , H04W72/1268 , H04W72/1273
摘要： A method of adaptive uplink/downlink timeslot assignment includes determining at least one of a potentially interfering cell which potentially interferes with a particular cell. A timeslot for uplink communication is eliminated, if a first one of the potentially interfering cells uses that timeslot for downlink communications. A timeslot for downlink communication is eliminated if a dynamic interference measurement in that timeslot as measured by most users exceeds a predetermined threshold and if a dynamic interference measurement in that timeslot does not exceed the predetermined threshold for most users but exceeds the predetermined threshold for at least one user. A timeslot is assigned to an uplink communication of the particular cell using non-uplink eliminated timeslots, and a timeslot is assigned to a downlink communication of the particular cell to each user using non-downlink eliminated timeslots with respect to that user.
摘要翻译：自适应上行链路/下行链路时隙分配的方法包括确定可能干扰特定小区的潜在干扰小区中的至少一个。如果潜在干扰小区中的第一个小区使用该时隙用于下行链路通信，则消除用于上行链路通信的时隙。如果大多数用户测量的该时隙中的动态干扰测量超过预定阈值，并且如果该时隙中的动态干扰测量对于大多数用户而言不超过预定阈值但是至少超过预定阈值，则消除用于下行链路通信的时隙一个用户使用非上行链路消除的时隙将时隙分配给特定小区的上行链路通信，并且使用相对于该用户的非下行链路消除的时隙将时隙分配给每个用户的特定小区的下行链路通信。

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