专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US06928104B2 Scaling using gain factors for use in data detection for wireless code division multiple access communication systems 失效
标题翻译：使用增益因子进行缩放，用于无线码分多址通信系统的数据检测
公开(公告)号：US06928104B2
公开(公告)日：2005-08-09
申请号：US10327299
申请日：2002-12-20
申请人： Jung-Lin Pan , Younglok Kim , Donald Grieco
发明人： Jung-Lin Pan , Younglok Kim , Donald Grieco
IPC分类号： H04L25/02 , H04Q7/38 , H04B1/707
CPC分类号： H04B1/71055 , H04B1/1027 , H04B1/7103 , H04L25/0202 , H04L25/0204 , H04L25/0212 , H04L25/0224 , H04L25/03006
摘要： Data from a plurality of communications is transmitted in a code division multiple access communication system. The transmitted communications are received. Gain factors are determined for at least one of the received communications. Data of the received communications is detected using a scaling factor derived from the determined gain values.
摘要翻译：来自多个通信的数据在码分多址通信系统中发送。发送的通信被接收。为接收到的通信中的至少一个确定增益因子。使用从确定的增益值导出的缩放因子检测接收到的通信的数据。

22. 发明授权

US08116220B2 Method for receiving communication signals having differing spreading factors 失效
标题翻译：用于接收具有不同扩频因子的通信信号的方法
公开(公告)号：US08116220B2
公开(公告)日：2012-02-14
申请号：US12258884
申请日：2008-10-27
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04J1/16 , H04L12/56
CPC分类号： H04B1/71052 , H04B1/7105 , H04B2201/70703 , H04B2201/70705
摘要： A method for the simultaneous reception of data from multiple sources having different spreading factors. A plurality of transmission response matrices are generated and grouped together for equal spreading factors. A plurality of spreading factor group matrices are assembled. A base matrix is formed based upon the spreading factor group matrix having a lowest spreading factor. An additional spreading factor group matrix is selected for consideration. Column placement reference index for the base matrix is derived. A reference location for the base matrix is derived. A column set from the selected spreading factor group matrix is derived. The column set is inserted into the base matrix. A total transmission response matrix is assembled.
摘要翻译：一种用于从具有不同扩频因子的多个源同时接收数据的方法。生成多个传输响应矩阵并将其分组在一起用于相等的扩展因子。组合了多个扩频因子组矩阵。基于具有最低扩展因子的扩展因子组矩阵形成基本矩阵。选择一个附加的扩散因子组矩阵来考虑。导出基础矩阵的列放置参考索引。导出基础矩阵的参考位置。导出从所选择的扩展因子组矩阵中设置的列。列集合插入到基本矩阵中。组合总传输响应矩阵。

23. 发明申请

US20050002356A1 Method and apparatus employed in a user equipment for interference signal code power and noise variance estimation 有权
公开(公告)号：US20050002356A1
公开(公告)日：2005-01-06
申请号：US10901796
申请日：2004-07-29
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira
IPC分类号： H04B17/00 , H04B7/216 , H04J1/00 , H04J3/00 , H04L1/20 , H04Q7/00
CPC分类号： H04B1/7103 , H04B1/7105 , H04B1/71055 , H04B1/71057 , H04L1/20
摘要： Method and apparatus employed by a UE for interference signal code power noise variance estimation employing a reduced number of samples utilizing the equation σ ^ n 2 = T · ∑ i = 1 N sample ⁢  h n ⁡ ( i )  2 , where T = G · γ ⁡ ( r ) N sample , where Nsample=Lchest−Npl·Kmax, where γ ⁡ ( r ) = [ 1 + ( 1 r - 1 ) · ln ⁡ ( 1 - r ) ] - 1 and where r = N sample L chest . As an alternative, a recursive technique may be employed wherein the noise variance is estimated from the ignored coefficients of the estimated channel output and upgraded recursively as per the following: σ ^ n 2 = 1 KW ⁢ ∑ j = 1 K ⁢ ∑ i = 1 W ⁢  h i ( j ) - h ^ i ( j )  2 , where ĥi(j) are the channel estimates after the post processing and the noise variance estimates {circumflex over (σ)}n-12, and the initial values of ĥi(j) are all zeros.

24. 发明授权

US06747947B2 OVSF code system and methods for CDMA stations 失效
标题翻译：用于CDMA站的OVSF码系统和方法
公开(公告)号：US06747947B2
公开(公告)日：2004-06-08
申请号：US10419485
申请日：2003-04-21
申请人： Younglok Kim , Jung-Lin Pan
发明人： Younglok Kim , Jung-Lin Pan
IPC分类号： H04J1300
CPC分类号： H04J13/12 , H04J13/0044 , H04J13/0048 , H04J13/20
摘要： A code indexing system for a CDMA communication station that uses orthogonal variable spreading factor (OVSF) codes has a single number mapped to each code. The new code number itself not only provides the code signature, but it is also used for the OVSF code generation. In addition, the system provides easy and fast generation of the available code list without the help of look-up table. This capability improves the dynamic code assignment.
摘要翻译：使用正交可变扩频因子（OVSF）码的CDMA通信站的码索引系统具有映射到每个码的单个号码。新的代码本身不仅提供了代码签名，而且还用于生成OVSF代码。此外，系统提供了方便快捷地生成可用代码列表，而无需查找表的帮助。此功能可以改进动态代码分配。

25. 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。

26. 发明授权

US07239604B2 OVSF code system and methods for CDMA stations 失效
标题翻译：用于CDMA站的OVSF码系统和方法
公开(公告)号：US07239604B2
公开(公告)日：2007-07-03
申请号：US10831254
申请日：2004-04-23
申请人： Younglok Kim , Jung-Lin Pan
发明人： Younglok Kim , Jung-Lin Pan
IPC分类号： H04B7/216 , H04J13/00
CPC分类号： H04J13/12 , H04J13/0044 , H04J13/0048 , H04J13/20
摘要： A code indexing system for a CDMA communication station that uses orthogonal variable spreading factor (OVSF) codes has a single number mapped to each code. The new code number itself not only provides the code signature, but it is also used for the OVSF code generation. In addition, the system provides easy and fast generation of the available code list without the help of look-up table. This capability improves the dynamic code assignment.
摘要翻译：使用正交可变扩频因子（OVSF）码的CDMA通信站的码索引系统具有映射到每个码的单个号码。新的代码本身不仅提供了代码签名，而且还用于生成OVSF代码。此外，系统提供了方便快捷地生成可用代码列表，而无需查找表的帮助。此功能可以改进动态代码分配。

27. 发明申请

US20060188008A1 Scaling using gain factors for use in data detection 失效
公开(公告)号：US20060188008A1
公开(公告)日：2006-08-24
申请号：US11408411
申请日：2006-04-21
申请人： Jung-Lin Pan , Younglok Kim , Donald Grieco
发明人： Jung-Lin Pan , Younglok Kim , Donald Grieco
IPC分类号： H04B1/707
CPC分类号： H04B1/71055 , H04B1/1027 , H04B1/7103 , H04L25/0202 , H04L25/0204 , H04L25/0212 , H04L25/0224 , H04L25/03006
摘要： Data is estimated from a received vector comprising a plurality of communications. A received wireless signal is converted to a baseband signal, which is sampled to produce a received vector. Channel responses are estimated for the received communications. The noise variance is estimated. The noise variance is scaled by a scaling factor. Samples are processed using the estimated channel responses and the scaled noise variance to produce a spread data vector. The spread data vector is despread to recover the data of the received wireless signal.

28. 发明授权

US06741653B2 Data detection for codes with non-uniform spreading factors 有权
标题翻译：具有不均匀扩散因子的码的数据检测
公开(公告)号：US06741653B2
公开(公告)日：2004-05-25
申请号：US10064307
申请日：2002-07-01
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04N712
CPC分类号： H04J13/0044 , H04B1/707 , H04B1/71052 , H04B1/71055 , H04B2201/70703 , H04B2201/70705
摘要： A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
摘要翻译：接收多个通信信号。每个通信信号具有相关代码。至少两个通信信号具有不同的扩展因子。相关代码具有扰码周期。总系统响应矩阵具有块。每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

29. 发明授权

US06714527B2 Multiuser detector for variable spreading factors 失效
标题翻译：用于可变扩散因子的多用户检测器
公开(公告)号：US06714527B2
公开(公告)日：2004-03-30
申请号：US10174121
申请日：2002-06-18
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04J1302
CPC分类号： H04B1/71052 , H04B1/7105 , H04B2201/70703 , H04B2201/70705
摘要： A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.
摘要翻译：多个通信信号具有不同的扩展码。每个通信具有包括芯片的相关代码。对于每个通信的每个芯片，产生与脉冲响应卷积的该芯片的矢量。对于每个通信，产生包括芯片向量的支持块。支持块中的多个码片向量基于该通信的扩频因子。组合系统响应矩阵。系统响应矩阵具有符号子矩阵。每个符号子矩阵包括来自每个通信的支持块。使用符号响应矩阵检测通信的数据。

30. 发明申请

US20090316762A1 SCALING USING GAIN FACTORS FOR USE IN DATA DETECTION 失效
标题翻译：使用增益因子进行数据检测
公开(公告)号：US20090316762A1
公开(公告)日：2009-12-24
申请号：US12549912
申请日：2009-08-28
申请人： Jung-Lin Pan , Younglok Kim , Donald Grieco
发明人： Jung-Lin Pan , Younglok Kim , Donald Grieco
IPC分类号： H04B1/707 , H04M1/00
CPC分类号： H04B1/71055 , H04B1/1027 , H04B1/7103 , H04L25/0202 , H04L25/0204 , H04L25/0212 , H04L25/0224 , H04L25/03006
摘要： Data is estimated from a received vector comprising a plurality of communications. A received wireless signal is converted to a baseband signal, which is sampled to produce a received vector. Channel responses are estimated for the received communications. The noise variance is estimated. The noise variance is scaled by a scaling factor. Samples are processed using the estimated channel responses and the scaled noise variance to produce a spread data vector. The spread data vector is despread to recover the data of the received wireless signal.
摘要翻译：从包括多个通信的接收向量估计数据。接收到的无线信号被转换为基带信号，其被采样以产生接收的矢量。对接收到的通信估计通道响应。估计噪声方差。噪声方差用比例因子缩放。使用估计的信道响应和缩放的噪声方差来处理样本以产生扩展数据向量。扩展数据向量被解扩以恢复所接收的无线信号的数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式