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91. 发明申请

US20090028324A1 METHOD AND SYSTEM FOR PROVIDING SCRAMBLED CODED MULTIPLE ACCESS (SCMA) 审中-公开
标题翻译：提供编码多路访问（SCMA）的方法和系统
公开(公告)号：US20090028324A1
公开(公告)日：2009-01-29
申请号：US12056144
申请日：2008-03-26
申请人： Mustafa Eroz , Lin-Nan Lee , Lakshmi Iyer , Neal Becker
发明人： Mustafa Eroz , Lin-Nan Lee , Lakshmi Iyer , Neal Becker
IPC分类号： H04L9/00
CPC分类号： H03M13/2957 , H03M13/2903
摘要： A multiple access scheme is described. A first bit stream is scrambled from a first terminal according to a first scrambling signature. A second bit stream is scrambled from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate code. The first scrambling signature and the second scrambling signature are assigned, respectively, to the first terminal and the second terminal to provide a multiple access scheme.
摘要翻译：描述多址方案。根据第一加扰签名从第一终端对第一比特流进行加扰。根据第二加扰签名从第二终端对第二比特流进行加扰，其中使用低速率码对第一比特流和第二比特流进行编码。分别将第一加扰签名和第二加扰签名分配给第一终端和第二终端以提供多址方案。

92. 发明申请

US20070101233A1 System, method and computer program product for implementing rate 3/4 low density parity check code 有权
标题翻译：用于实现速率3/4低密度奇偶校验码的系统，方法和计算机程序产品
公开(公告)号：US20070101233A1
公开(公告)日：2007-05-03
申请号：US11432576
申请日：2006-05-11
申请人： Mustafa Eroz , Lakshmi Iyer , Lin-Nan Lee
发明人： Mustafa Eroz , Lakshmi Iyer , Lin-Nan Lee
IPC分类号： H03M13/00
CPC分类号： H03M13/116 , H03M13/1185 , H03M13/1188 , H03M13/6356 , H03M13/6362
摘要： A method, system, apparatus and computer program product for correcting errors in a signal transmission using a rate 3/4 low density parity check (LDPC) code. At least a portion of a received data message is encoded by using a parity check matrix of the LDPC code. The encoded data message is transmitting in a signal transmission over a communication channel to a receiving device in the communication network. After being received, the encoded portion of the data message is decoded using a parity check matrix of the LDPC code to obtain the data message. For example, the encoding and decoding can be performed using a parity check matrix corresponds to a coded block size (N) equal to 1944 for communicating data in compliance with an 802.11n standard.
摘要翻译：一种用于使用速率3/4低密度奇偶校验（LDPC）码校正信号传输中的错误的方法，系统，装置和计算机程序产品。通过使用LDPC码的奇偶校验矩阵来对接收到的数据消息的至少一部分进行编码。编码数据消息是通过通信信道在信号传输中发送到通信网络中的接收装置。在接收之后，使用LDPC码的奇偶校验矩阵对数据消息的编码部分进行解码以获得数据消息。例如，可以使用对应于等于1944的编码块大小（N）的奇偶校验矩阵来进行编码和解码，以根据802.11n标准传送数据。

93. 发明申请

US20080137766A1 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals 有权
标题翻译：用于正交叠加可变码片速率扩频信号的方法和装置
公开(公告)号：US20080137766A1
公开(公告)日：2008-06-12
申请号：US12009275
申请日：2008-01-17
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04L23/02
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.
摘要翻译：描述了经由适于发送窄带信号的无线电通信系统发送宽带信号的系统和方法。基站用于发送和接收多个相对窄带和多个相对宽带的信号。可用于多个窄带信号的电磁频谱通过系统地分离用于传输的正交码和载波频率，与宽带信号可用的电磁频谱选择性共享。正交码的前缀优选地是互斥的，并且载波频率优选地被偏移分开。偏移量可以基本上等于窄带信号的码片速率的整数倍。或者，偏移可以基本上等于窄带信号的码片速率的一半的奇数倍，在这种情况下，正交编码数据的每隔一位被反转。

94. 发明申请

US20060153313A1 METHOD AND APPARATUS FOR MINIMIZING CO-CHANNEL INTERFERENCE 有权
标题翻译：用于最小化共通道干扰的方法和装置
公开(公告)号：US20060153313A1
公开(公告)日：2006-07-13
申请号：US11009346
申请日：2004-12-10
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Ancken
IPC分类号： H04B15/00 , H03D1/04
CPC分类号： H04N5/211 , H04B7/18513 , H04H20/51 , H04L25/03866
摘要： An approach is provided for minimizing co-channel interference in a communication system is disclosed. A header of a first frame is scrambled based on a first unique word. A header of a second frame is scrambled based on a second unique word. The first frame including the corresponding scrambled header and the second frame including the corresponding scrambled header are transmitted, respectively, over adjacent co-channels of the communication system. Each of the frames further includes a payload and a pilot block. The payload and the pilot block of the first frame are scrambled based on a first scrambling sequence. The payload and the pilot block of the second frame are scrambled based on a second scrambling sequence. The above arrangement is particularly suited to a digital satellite broadcast and interactive system.
摘要翻译：提供了一种用于最小化通信系统中的同信道干扰的方法。基于第一唯一字来加扰第一帧的报头。基于第二唯一字对第二帧的报头进行加扰。分别在通信系统的相邻共同信道上发送包括对应的加扰报头和包括对应的加扰报头的第二帧的第一帧。每个帧还包括有效载荷和导频块。基于第一加扰序列对第一帧的有效载荷和导频块进行加扰。基于第二加扰序列对第二帧的净荷和导频块进行加扰。上述布置特别适用于数字卫星广播和交互式系统。

95. 发明授权

US06940809B2 System and method for transmitting data in frame format using an R-Rake retransmission technique with blind identification of data frames 有权
标题翻译：使用具有盲识别数据帧的R-Rake重传技术以帧格式发送数据的系统和方法
公开(公告)号：US06940809B2
公开(公告)日：2005-09-06
申请号：US10799868
申请日：2004-03-12
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04L1/18 , H04Q7/24 , H04J1/16
CPC分类号： H04L1/1812
摘要： A system and method where a data transmitter retransmits data frames to a receiver for combination with previously transmitted data frames that were received with errors to increase gain at the receiver. The data transmitter receives a retransmission request from the receiver and retransmits a particular data frame without a signaling message. The receiver compares the retransmitted data frame to other data frames stored in a buffer to determine the likelihood of a match between the transmitted data frame and a buffered data frame. When the likelihood of a match exceeds at least one predetermined threshold, the receiver combines the retransmitted data frame with the matching data frame. If the likelihood of a match is below any of the predetermined thresholds, the receiver stores either the combined data frame, or the retransmitted and matching data frame, depending on which threshold is not exceeded, and sends another retransmission request.
摘要翻译：一种系统和方法，其中数据发射机向接收机重发数据帧以与先前发送的数据帧组合，以及接收到错误的数据帧以增加接收机的增益。数据发射机接收来自接收机的重传请求，并重发特定的数据帧而不发送信令消息。接收机将重传的数据帧与存储在缓冲器中的其他数据帧进行比较，以确定发送的数据帧与缓冲的数据帧之间的匹配的可能性。当匹配的可能性超过至少一个预定阈值时，接收机将重传的数据帧与匹配数据帧组合。如果匹配的可能性低于任何预定阈值，则接收机根据不超过哪个阈值来存储组合数据帧或重传和匹配数据帧，并发送另一个重传请求。

96. 发明授权

US06741581B1 System and method for transmitting data in frame format using an R-Rake retransmission technique with blind identification of data frames 有权
标题翻译：使用具有盲识别数据帧的R-Rake重传技术以帧格式发送数据的系统和方法
公开(公告)号：US06741581B1
公开(公告)日：2004-05-25
申请号：US09399839
申请日：1999-09-21
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04L116
CPC分类号： H04L1/1812
摘要： A system and method for retransmitting data frames, which were inadequately received by a receiver, back to the receiver to increase receiver gain. Upon receiving a retransmission request from the receiver, the data transmitter retransmits a particular data frame to the receiver without transmitting a signaling message, and the receiver compares it to other data frames stored in a buffer. When a match is believed to exist, the receiver combines the retransmitted data frame with the matching data frame. Based on the result of a cyclic redundant code (CRC) check performed on the combined data frame, the receiver either provides the combined data frame to a higher layer in the receiver, or stores either the combined data frame, or the retransmitted and potentially matching data frame, in the buffer, depending on a confidence in the potential match, and sends another retransmission request to the transmitter to again retransmit the data frame and the above process is repeated.
摘要翻译：一种用于重传数据帧的系统和方法，其被接收机不足以接收到接收机以增加接收机增益。在从接收机接收到重传请求时，数据发射机在不发送信令消息的情况下向接收机重传特定数据帧，并且接收机将其与存储在缓冲器中的其它数据帧进行比较。当相信存在匹配时，接收器将重传的数据帧与匹配的数据帧组合。基于在组合数据帧上执行的循环冗余码（CRC）检查的结果，接收机将组合数据帧提供给接收机中的较高层，或者存储组合数据帧，或存储组合数据帧，或者重传和潜在匹配数据帧在缓冲器中取决于潜在匹配的置信度，并且向发送器发送另一个重发请求以再次重发数据帧，并重复上述处理。

97. 发明授权

US06510147B1 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals 失效
公开(公告)号：US06510147B1
公开(公告)日：2003-01-21
申请号：US09115256
申请日：1998-07-13
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04B7216
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.

98. 发明授权

US09467200B2 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals 有权
公开(公告)号：US09467200B2
公开(公告)日：2016-10-11
申请号：US12404251
申请日：2009-03-13
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04B1/707 , H04J13/00 , H04J13/18 , H04W52/26
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.

99. 发明授权

US08179781B2 Method and apparatus for encoding data for transmission in a communication system 有权
标题翻译：用于在通信系统中对用于传输的数据进行编码的方法和装置
公开(公告)号：US08179781B2
公开(公告)日：2012-05-15
申请号：US11999561
申请日：2007-12-06
申请人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
发明人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
IPC分类号： H04J11/00 , H04B3/20
CPC分类号： H04J13/004 , H04J13/0077 , H04W52/26
摘要： A method and apparatus for encoding data for transmission in a communication system provides increased efficiency in bandwidth utilization through higher data rates, lower error rates, lower power levels, and/or increased capacity. A set of orthogonal codes is partitioned into subsets. The data to be transmitted is partitioned into packets of bit sequences, each of which is mapped to an orthogonal code in an assigned subset. The number of members in a particular subset is determined by the relative transmission requirements of the data signal the subset will be used to encode.
摘要翻译：用于在通信系统中对用于传输的数据进行编码的方法和装置通过更高的数据速率，更低的误码率，更低的功率水平和/或增加的容量来提高带宽利用率。一组正交码被划分成子集。要发送的数据被划分成比特序列的分组，每个比特序列被映射到所分配的子集中的正交码。特定子集中的成员数量由子组将用于编码的数据信号的相对传输要求确定。

100. 发明授权

US07460832B2 Methods and apparatuses for minimizing co-channel interference 有权
标题翻译：用于最小化同频道干扰的方法和装置
公开(公告)号：US07460832B2
公开(公告)日：2008-12-02
申请号：US11103307
申请日：2005-04-11
申请人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
发明人： Lin-Nan Lee , Feng-Wen Sun , Adam Von Ancken , Joseph Santoru , Ernest C. Chen , Shamik Maitra , Dennis Lai , Guangcai Zhou , Tung-Sheng Lin
IPC分类号： H04B15/00 , H03D1/04
CPC分类号： H04N5/211 , H04B7/18513 , H04B7/1858 , H04N7/16 , H04N7/163 , H04N7/1675 , H04N7/17318 , H04N21/2347 , H04N21/4405 , H04N21/6143
摘要： Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises scrambling a first frame using a first scrambling code, attaching a first header to the first frame to create the first signal, scrambling a second frame using a second scrambling code, attaching a second header to the second frame to create the second signal, and transmitting the first signal and the second signal over different channels of the communication system.
摘要翻译：公开了用于最小化通信系统中的同信道干扰的方法和装置。根据本发明的方法包括使用第一扰码对第一帧进行加扰，将第一报头附加到第一帧以产生第一信号，使用第二扰码对第二帧进行加扰，将第二报头附加到第二帧以产生第二信号，以及通过通信系统的不同信道发送第一信号和第二信号。

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