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121. 发明授权

US07072290B2 Single user detection base station 失效
公开(公告)号：US07072290B2
公开(公告)日：2006-07-04
申请号：US10080099
申请日：2002-02-21
申请人： Parthapratim De , Ariela Zeira , Jung-Lin Pan , Raj Mani Misra
发明人： Parthapratim De , Ariela Zeira , Jung-Lin Pan , Raj Mani Misra
IPC分类号： H04J11/00
CPC分类号： H04B1/7105 , H04B1/71052 , H04B2201/70707 , H04L25/0212
摘要： A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A column of a channel correlation matrix is determined using the estimated channel response. A spread data vector is determined using the determined column, the estimated channel response, the received combined signal and a fourier transform. Data of the data signals is estimated using the spread data vector.

122. 发明申请

US20060126573A1 Random access channel preamble 有权
公开(公告)号：US20060126573A1
公开(公告)日：2006-06-15
申请号：US11305283
申请日：2005-12-16
申请人： Stephen Dick , Charles Dennean , Eldad Zeira , Jung-Lin Pan , Sung-Hyuk Shin , Ariela Zeira
发明人： Stephen Dick , Charles Dennean , Eldad 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.

123. 发明申请

US20060126568A1 Method and apparatus for performing chip level equalization using joint processing 失效
公开(公告)号：US20060126568A1
公开(公告)日：2006-06-15
申请号：US11259430
申请日：2005-10-26
申请人： Jung-Lin Pan , Robert DiFazio
发明人： Jung-Lin Pan , Robert DiFazio
IPC分类号： H04B7/216
CPC分类号： H04B7/0854 , H04B1/71052 , H04B1/71055 , H04L25/0206 , H04L25/03171 , H04L2025/03426
摘要： A method and apparatus for performing chip level equalization (CLE) using joint processing to enhance performance and system throughput using a transmitter having a plurality of transmit antennas and a receiver having a plurality of receive antennas. A channel response matrix is formed between the transmit antennas and the receive antennas to generate a joint channel correlation matrix between the transmit antennas and the receive antennas using a block-FFT (B-FFT) decomposition of the channel response matrix. Estimates of transmitted chip sequences from each of the transmit antennas are generated using minimum mean square error (MMSE) and the joint channel correlation matrix are combined. The combined estimate of the transmitted chip sequences are despread to recover transmitted data.

124. 发明授权

US07054300B2 Single user detection circuit 有权
标题翻译：单用户检测电路
公开(公告)号：US07054300B2
公开(公告)日：2006-05-30
申请号：US11100901
申请日：2005-04-07
申请人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
发明人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B1/71052 , H04B1/71055
摘要： A circuit for use in a receiver receives a plurality of code division multiple access data signals simultaneously. Each data signal experiences a similar channel response. The circuit receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based in part on the estimated channel response. A spread data vector is determined based in part on a fast Fourier transform (FFT) decomposition of a circulant version of the channel response matrix or channel correlation matrix. The spread data vector is despread to recover data from the matrix.
摘要翻译：用于接收机的电路同时接收多个码分多址数据信号。每个数据信号经历类似的信道响应。电路在时隙中通过共享频谱接收组合信号。组合信号包括多个数据信号。组合信号以组合信号的码片速率的倍数进行采样。估计类似的信道响应。部分基于估计的信道响应构建信道响应矩阵或信道相关矩阵。部分地基于信道响应矩阵或信道相关矩阵的循环版本的快速傅里叶变换（FFT）分解来确定扩展数据向量。扩展数据向量被解扩以从矩阵中恢复数据。

125. 发明授权

US06996078B2 Adaptive uplink/downlink timeslot assignment in a hybrid wireless time division multiple access/code division multiple access communication system 有权
公开(公告)号：US06996078B2
公开(公告)日：2006-02-07
申请号：US09910329
申请日：2001-07-20
申请人： Jung-Lin Pan , Ariela Zeira
发明人： Jung-Lin Pan , Ariela Zeira
IPC分类号： H04Q7/00 , H04B7/216 , H04B17/02 , H04L12/28 , H03C1/62
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 particular cell of a hybrid time division multiple access/code division multiple access communication system has a base station and a plurality of user requirements. Timeslots having unacceptable interference for the uplink are estimated. Timeslots having unacceptable interference for the downlink are estimated. An availability list is produced. The availability list indicates available uplink and downlink timeslots having acceptable interference levels. Uplink and downlink timeslots are assigned using the availability list.

126. 发明授权

US06904036B2 Single user detection base station 有权
标题翻译：单用户检测基站
公开(公告)号：US06904036B2
公开(公告)日：2005-06-07
申请号：US10077527
申请日：2002-02-15
申请人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
发明人： Jung-Lin Pan , Parthapratim De , Ariela Zeira
IPC分类号： H04B1/707 , H04B1/7097 , H04B7/204 , H04L5/22 , H04Q7/38 , H04L12/28
CPC分类号： H04B1/71052 , H04B1/71055
摘要： A time division duplex using code division multiple access base station receives a plurality of data signals in a time slot. Each data signal experiences a similar channel response. The base station receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based on in part the estimated channel response. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel response or channel correlation matrix. The spread data vector is despread to recover data from the matrix.
摘要翻译：使用码分多址基站的时分双工在时隙中接收多个数据信号。每个数据信号经历类似的信道响应。基站在时隙中通过共享频谱接收组合信号。组合信号包括多个数据信号。组合信号以组合信号的码片速率的倍数进行采样。估计类似的信道响应。基于估计的信道响应部分构建信道响应矩阵或信道相关矩阵。基于信道响应或信道相关矩阵的循环版本的部分快速傅立叶变换（FFT）分解来确定扩展数据向量。扩展数据向量被解扩以从矩阵中恢复数据。

127. 发明授权

US06757321B2 Segment-wise channel equalization based data estimation 有权
标题翻译：基于分段信道均衡的数据估计
公开(公告)号：US06757321B2
公开(公告)日：2004-06-29
申请号：US10153112
申请日：2002-05-22
申请人： Jung-Lin Pan , Ariela Zeira
发明人： Jung-Lin Pan , Ariela Zeira
IPC分类号： H04L2730
CPC分类号： H04B1/7105 , H04B1/707
摘要： Data is estimated of a plurality of received spread spectrum signals. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector. The received vector is processed to produce a plurality of segments. Each segment is processed separately to estimate data of the received communications.
摘要翻译：估计多个接收的扩频信号的数据。多个接收到的通信在共享频谱中被接收。接收到的通信被采样以产生接收的向量。处理所接收的矢量以产生多个段。每个段被单独处理以估计接收到的通信的数据。

128. 发明授权

US06625203B2 Fast joint detection 失效
标题翻译：快速联合检测
公开(公告)号：US06625203B2
公开(公告)日：2003-09-23
申请号：US10037710
申请日：2001-12-31
申请人： Parthapratim De , Jung-Lin Pan , Ariela Zeira
发明人： Parthapratim De , Jung-Lin Pan , Ariela Zeira
IPC分类号： H04B1400
CPC分类号： H04B1/7105
摘要： K data signals are transmitted over a shared spectrum in a code division multiple access communication system. A combined signal is received and sampled over the shared spectrum. The combined signal has the K transmitted data signals. A combined channel response matrix is produced using the codes and impulse responses of the K transmitted data signals. A block column of a combined channel correlation matrix is determined using the combined channel response matrix. Each block entry of the block column is a K by K matrix. At each frequency point k, a K by K matrix &Lgr;(k) is determined by taking the fourier transform of the block entries of the block column. An inverse of &Lgr;(k) is multiplied to a result of the fourier transform. Alternately, forward and backward substitution can be used to solve the system. An inverse fourier transform is used to recover the data from the K data signals.
摘要翻译：在码分多址通信系统中，通过共享频谱发送K个数据信号。组合信号在共享频谱上被接收和采样。组合信号具有K个发送的数据信号。使用K个发送的数据信号的代码和脉冲响应来产生组合的信道响应矩阵。使用组合信道响应矩阵来确定组合信道相关矩阵的块列。块列的每个块条目是K乘K矩阵。在每个频点k处，通过对块列的块条目进行傅里叶变换来确定K乘K矩阵Lambd <（k）>。将Lambd <（k）>的倒数乘以傅立叶变换的结果。或者，可以使用前向和后向替换来解决系统。使用逆傅立叶变换从K个数据信号中恢复数据。

129. 发明申请

US20140204899A1 HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WTRU AND METHOD 有权
标题翻译：混合正交频分多址接入WTRU和方法
公开(公告)号：US20140204899A1
公开(公告)日：2014-07-24
申请号：US14164670
申请日：2014-01-27
申请人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
发明人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan
IPC分类号： H04L5/00
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0037 , H04L5/0044 , H04L5/005 , H04L5/0073 , H04L27/2601 , H04L27/2647
摘要： A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method are disclosed. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data.
摘要翻译：公开了一种混合正交频分多址（OFDMA）无线发射/接收单元（WTRU）和方法。 WTRU包括发射机和接收机。接收机处理接收到的数据以恢复使用OFDMA映射到子载波的数据。接收机通过从多用户扩展数据分离用户数据并从非扩展数据中恢复第二输入数据来恢复第一输入数据。

130. 发明授权

US08213493B2 Pilot-directed and pilot/data-directed equalizers 有权
标题翻译：导频和导频/数据导向均衡器
公开(公告)号：US08213493B2
公开(公告)日：2012-07-03
申请号：US12415023
申请日：2009-03-31
申请人： Jung-Lin Pan , Mihaela C. Beluri , Philip J. Pietraski
发明人： Jung-Lin Pan , Mihaela C. Beluri , Philip J. Pietraski
IPC分类号： H03H7/30
CPC分类号： H04L25/03038 , H04B1/712 , H04B2201/70701 , H04L25/03044 , H04L2025/03375 , H04L2025/03477 , H04L2025/03617
摘要： A normalized least means square (NLMS) equalizer including two equalizer filters is disclosed. In one embodiment, a single correction term generator is used to generate correction terms for tap coefficient updates of each of the equalizer filters based on a pilot signal. In another embodiment, two different correction term generators are used to generate correction terms for each of the equalizer filters, whereby one of the correction term generators uses data received from a hard decision unit at the output of one of the equalizer filters to generate correction terms for both of the equalizer filters.
摘要翻译：公开了包括两个均衡器滤波器的归一化最小均方（NLMS）均衡器。在一个实施例中，单个校正项生成器用于基于导频信号产生每个均衡器滤波器的抽头系数更新的校正项。在另一个实施例中，使用两个不同的校正项发生器来产生每个均衡器滤波器的校正项，由此校正项发生器之一使用在均衡器滤波器之一的输出处从硬判决单元接收的数据来产生校正项两个均衡器滤波器。

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