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1. 发明授权

US07899015B2 Method and apparatus for resource reuse in a communication system 有权
标题翻译：通信系统中资源重用的方法和装置
公开(公告)号：US07899015B2
公开(公告)日：2011-03-01
申请号：US11681302
申请日：2007-03-02
申请人： Gregory E. Bottomley , Jung-fu Cheng , Havish Koorapaty , Rajaram Ramesh
发明人： Gregory E. Bottomley , Jung-fu Cheng , Havish Koorapaty , Rajaram Ramesh
IPC分类号： H04B7/216
CPC分类号： H04W72/0406 , H04B2201/709727 , H04W4/18 , H04W48/08 , H04W72/082
摘要： Method and apparatuses taught herein enable link adaptation feedback to be determined in advance for future transmit intervals, based on one or more data sending units sending indications of future transmit resource allocations, and receiving corresponding link adaptation feedback from data receiving units. Knowledge of the future transmit resource allocations enable individual data sending units to predict interference conditions for the future transmit interval, and thereby compute link adaptation feedback that takes advantage of low-interference conditions. Individual data sending units receive link adaptation feedback for the future transmit interval from the data receiving units they are supporting, and make corresponding link adaptations for the future transmit interval. Such operations are, in one or more embodiments, carried out in a Wideband Code Division Multiple Access (WCDMA), Long Term Evolution LTE), or WiMAX network, wherein the data sending units comprise radio base stations, and the data receiving units comprise wireless communication devices.
摘要翻译：基于一个或多个数据发送单元发送未来发送资源分配的指示，以及从数据接收单元接收相应的链路适配反馈，本文教导的方法和装置使能够针对未来的发射间隔预先确定链路自适应反馈。对未来发送资源分配的了解使各个数据发送单元能够预测未来发射间隔的干扰条件，从而计算利用低干扰条件的链路自适应反馈。单个数据发送单元从其所支持的数据接收单元接收将来发送间隔的链路自适应反馈，并对未来发送间隔进行相应的链路适配。在一个或多个实施例中，这样的操作在宽带码分多址（WCDMA），长期演进LTE）或WiMAX网络中进行，其中数据发送单元包括无线电基站，并且数据接收单元包括无线通讯设备。

2. 发明申请

US20080212539A1 Method and Apparatus for Resource Reuse in a Communication System 有权
标题翻译：通信系统资源再利用方法与装置
公开(公告)号：US20080212539A1
公开(公告)日：2008-09-04
申请号：US11681302
申请日：2007-03-02
申请人： Gregory E. Bottomley , Jung-fu Cheng , Havish Koorapaty , Rajaram Ramesh
发明人： Gregory E. Bottomley , Jung-fu Cheng , Havish Koorapaty , Rajaram Ramesh
IPC分类号： H04B7/216
CPC分类号： H04W72/0406 , H04B2201/709727 , H04W4/18 , H04W48/08 , H04W72/082
摘要： Method and apparatuses taught herein enable link adaptation feedback to be determined in advance for future transmit intervals, based on one or more data sending units sending indications of future transmit resource allocations, and receiving corresponding link adaptation feedback from data receiving units. Knowledge of the future transmit resource allocations enable individual data sending units to predict interference conditions for the future transmit interval, and thereby compute link adaptation feedback that takes advantage of low-interference conditions. Individual data sending units receive link adaptation feedback for the future transmit interval from the data receiving units they are supporting, and make corresponding link adaptations for the future transmit interval. Such operations are, in one or more embodiments, carried out in a Wideband Code Division Multiple Access (WCDMA), Long Term Evolution LTE), or WiMAX network, wherein the data sending units comprise radio base stations, and the data receiving units comprise wireless communication devices.
摘要翻译：基于一个或多个数据发送单元发送未来发送资源分配的指示，以及从数据接收单元接收相应的链路适配反馈，本文教导的方法和装置使能够针对未来的发射间隔预先确定链路自适应反馈。对未来发送资源分配的了解使各个数据发送单元能够预测未来发射间隔的干扰条件，从而计算利用低干扰条件的链路自适应反馈。单个数据发送单元从其所支持的数据接收单元接收将来发送间隔的链路自适应反馈，并对未来发送间隔进行相应的链路适配。在一个或多个实施例中，这样的操作在宽带码分多址（WCDMA），长期演进LTE）或WiMAX网络中进行，其中数据发送单元包括无线电基站，并且数据接收单元包括无线通讯设备。

3. 发明授权

US07251770B2 Method and apparatus for decoding of turbo encoded data in a communication system 有权
标题翻译：用于在通信系统中解码turbo编码数据的方法和装置
公开(公告)号：US07251770B2
公开(公告)日：2007-07-31
申请号：US10915134
申请日：2004-08-10
申请人： Gregory E. Bottomley , Rajaram Ramesh , Jung-Fu Cheng
发明人： Gregory E. Bottomley , Rajaram Ramesh , Jung-Fu Cheng
IPC分类号： H03M13/29 , H03M13/41
CPC分类号： H04L1/005 , H03M13/2957 , H03M13/2975 , H04L1/0066
摘要： A method and apparatus for decoding turbo encoded data. A first turbo decoding iteration is performed to produce a most likely sequence of symbols, each symbol having an amplitude value and a positive or negative sign. The sequence of symbols is error checked, and if an error is detected, the apparatus forms a next most likely sequence by reversing the positive or negative sign of the symbol having the smallest amplitude. If an error is again detected, additional sign reversals are performed on symbols with larger amplitudes, and on multiple symbols. Each modification is error checked. If none of the modifications produce an error-free sequence, and a maximum number of modifications are performed, the apparatus performs another turbo decoding iteration to produce another sequence of symbols. The process is then repeated until an error-free sequence is produced or a maximum number of iterations are performed.
摘要翻译：用于对turbo编码数据进行解码的方法和装置。执行第一turbo解码迭代以产生最可能的符号序列，每个符号具有振幅值和正号或负号。符号序列被错误检查，并且如果检测到错误，则该装置通过反转具有最小幅度的符号的正号或负号来形成下一个最可能的序列。如果再次检测到错误，则对具有较大幅度的符号和多个符号执行附加符号反转。每个修改都被错误检查。如果没有一个修改产生无错的序列，并且执行最大数量的修改，则该装置执行另一个turbo解码迭代以产生另一个符号序列。然后重复该过程，直到产生无错序列或执行最大次数。

4. 发明授权

US06775340B1 Synchronization and channel estimation with extended pilot symbols 有权
标题翻译：具有扩展导频符号的同步和信道估计
公开(公告)号：US06775340B1
公开(公告)日：2004-08-10
申请号：US09687500
申请日：2000-10-13
申请人： Huseyin Arslan , Rajaram Ramesh , Gregory E. Bottomley
发明人： Huseyin Arslan , Rajaram Ramesh , Gregory E. Bottomley
IPC分类号： H04L700
CPC分类号： H04L25/0236 , H04B2201/70701 , H04L7/04 , H04L25/03337
摘要： A mobile communications system receiver has improved synchronization and channel estimation for receiving a transmitted signal passing through a radio channel. A processor receives and samples the transmitted signal for a plurality of timing hypotheses. A channel estimator hypothesizes unknown symbols at a pilot cluster of the sampled signal and estimates the radio channel of the pilot cluster for each hypothesized symbol sequence. The estimator determines an error corresponding to each hypothesized symbol sequence using the sampled signal, the estimated radio channel and the hypothesized symbols and determines actual timing estimates and actual radio channel estimates by selecting the radio channel estimates associated with the hypothesized symbols and the timing and hypothesis that minimizes the error.
摘要翻译：移动通信系统接收机具有改进的同步和信道估计，用于接收通过无线电信道的发射信号。处理器接收并采样所发送的信号用于多个定时假设。信道估计器假设在采样信号的导频簇处的未知符号，并且针对每个假设的符号序列估计导频簇的无线电信道。估计器使用采样信号，估计无线电信道和假设符号来确定与每个假设符号序列相对应的误差，并且通过选择与假设符号相关联的无线电信道估计以及时间和假设来确定实际的定时估计和实际的无线电信道估计这最小化了错误。

5. 发明授权

US06603827B2 Method and apparatus for digital symbol detection using medium response estimates 有权
标题翻译：使用介质响应估计的数字符号检测方法和装置
公开(公告)号：US06603827B2
公开(公告)日：2003-08-05
申请号：US09769995
申请日：2001-01-25
申请人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
发明人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
IPC分类号： H04B169
CPC分类号： H04B1/707 , H04B7/005 , H04L25/0202 , H04L25/03178 , H04L25/03299
摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.
摘要翻译：根据本发明，利用脉冲整形的知识，传输介质对所发送的信息符号的影响与其他效果（例如与接收和发射滤波器相关的效果）分开估计。然后使用介质响应估计来检测信息符号。以前，接收机已经使用复合信道的估计来检测符号。然而，这是假设不相关的噪音，并不总是这样。

6. 发明授权

US06252918B1 Method and apparatus for digital symbol detection using medium response estimates 有权
标题翻译：使用介质响应估计的数字符号检测方法和装置
公开(公告)号：US06252918B1
公开(公告)日：2001-06-26
申请号：US09267378
申请日：1999-03-15
申请人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
发明人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
IPC分类号： H04B110
CPC分类号： H04B1/707 , H04B7/005 , H04L25/0202 , H04L25/03178 , H04L25/03299
摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.
摘要翻译：根据本发明，利用脉冲整形的知识，传输介质对所发送的信息符号的影响与其他效果（例如与接收和发射滤波器相关的效果）分开估计。然后使用介质响应估计来检测信息符号。以前，接收机已经使用复合信道的估计来检测符号。然而，这是假设不相关的噪音，并不总是这样。

7. 发明授权

US06826394B1 Interaction between an adjunct positioning system and a radiocommunication system 失效
标题翻译：辅助定位系统与无线电通信系统之间的相互作用
公开(公告)号：US06826394B1
公开(公告)日：2004-11-30
申请号：US08839861
申请日：1997-04-22
申请人： Alex K. Raith , Rajaram Ramesh , R. David Koilpillai , Gregory E. Bottomley , Havish Koorapaty
发明人： Alex K. Raith , Rajaram Ramesh , R. David Koilpillai , Gregory E. Bottomley , Havish Koorapaty
IPC分类号： H04M1100
CPC分类号： H04W4/90 , H04W76/50
摘要： Emergency call handling may, in the near future, require terminal unit location information to be provided to emergency service centers. Exemplary embodiments of the present invention provide techniques which provide for interaction between an adjunct system whose primary function is to provide terminal unit location information and the radiocommunication system. For example, the location information generated by the adjunct system can be used by the radiocommunication system for other purposes, e.g., dynamic channel allocation.
摘要翻译：在不久的将来，紧急呼叫处理可能需要向紧急服务中心提供终端单元位置信息。本发明的示例性实施例提供了提供主要功能是提供终端单元位置信息的辅助系统与无线电通信系统之间的交互的技术。例如，由附加系统生成的位置信息可被无线电通信系统用于其它目的，例如动态信道分配。

8. 发明授权

US06426978B1 Digital communication systems and methods for differential and/or amplitude encoding and decoding secondary symbols 有权
标题翻译：用于差分和/或幅度编码和解码辅助符号的数字通信系统和方法
公开(公告)号：US06426978B1
公开(公告)日：2002-07-30
申请号：US09164600
申请日：1998-10-01
申请人： Gregory E. Bottomley , Rajaram Ramesh
发明人： Gregory E. Bottomley , Rajaram Ramesh
IPC分类号： H04L2302
CPC分类号： H04J13/00 , H04L23/02
摘要： Digital communication systems and methods combine block encoding and differential and/or amplitude modulation. For every codeword period, one or more additional bits can be transmitted by applying differential modulation and/or amplitude modulation to the codewords. In differential modulation, additional information may be sent by flipping or not flipping the sign of a codeword. In amplitude modulation, additional information may be sent by changing the amplitude of successive codewords. A combination of differential and amplitude encoding may also be used. Thus, the data rate can be increased without increasing the symbol transmission rate.
摘要翻译：数字通信系统和方法组合块编码和差分和/或幅度调制。对于每个码字周期，可以通过对码字应用差分调制和/或幅度调制来发送一个或多个附加位。在差分调制中，可以通过翻转或不翻转码字的符号来发送附加信息。在幅度调制中，可以通过改变连续码字的幅度来发送附加信息。还可以使用差分和幅度编码的组合。因此，可以增加数据速率而不增加符号传输速率。

9. 发明授权

US6137843A Methods and apparatus for canceling adjacent channel signals in digital communications systems 失效
标题翻译：用于消除数字通信系统中相邻信道信号的方法和装置
公开(公告)号：US6137843A
公开(公告)日：2000-10-24
申请号：US901693
申请日：1997-07-28
申请人： Sandeep Chennakeshu , Rajaram Ramesh , Gregory E. Bottomley , Paul W. Dent
发明人： Sandeep Chennakeshu , Rajaram Ramesh , Gregory E. Bottomley , Paul W. Dent
IPC分类号： H04J1/00 , H01Q1/24 , H01Q21/08 , H01Q21/28 , H04B1/10 , H04B1/12 , H04B7/005 , H04B7/08 , H04B7/10 , H04B7/185 , H04B7/195 , H04B7/204 , H04B7/212 , H04B7/26 , H04J1/12 , H04J3/00 , H04L1/00 , H04L1/06 , H04L25/02 , H04L25/03 , H04W16/02 , H04W16/14 , H04W74/08 , H04W84/02 , H04W84/04 , H04W84/06 , H04L25/08
CPC分类号： H01Q1/246 , H01Q21/08 , H01Q21/28 , H04B1/126 , H04B7/0851 , H04B7/10 , H04B7/18513 , H04B7/18515 , H04B7/18532 , H04B7/18567 , H04B7/2041 , H04L1/06 , H04L25/0204 , H04L25/021 , H04L25/03331 , H04W16/02 , H04W84/025 , H04B7/0837 , H04L1/007 , H04L25/03203 , H04L25/0328 , H04L25/03299 , H04W16/14 , H04W74/08 , H04W84/042 , H04W84/06
摘要： A multi-signal cancelling demodulator in which signals of interest are demodulated using information obtained during demodulation of adjacent signals. By utilizing detected information in an across-channel fashion, exemplary cancelling demodulators provide superior adjacent channel interference rejection. The cancelling demodulation is conducted in either serial or parallel fashion. In exemplary parallel demodulation embodiments, two channels are demodulated simultaneously in iterative fashion. Detected information obtained at each step in the iterative process is used as a priori information for demodulation in a following step. In exemplary serial demodulation embodiments, the stronger of two received signals is demodulated, and the resulting detected information is used as a priori information for demodulation of the weaker of the two received signals. For both the serial and parallel demodulation embodiments, novel techniques are disclosed for transforming symbols detected in one frequency band to corresponding symbols in adjacent frequency bands. Such inter-channel transformations are also applied in the context of channel estimation. In an exemplary channel estimator, multiple channel parameter estimates for a particular frequency channel are provided based on a received baseband signal corresponding to that frequency channel. Since inter-channel information is used in providing the channel parameter estimates, the exemplary channel estimator provides superior adjacent channel interference rejection.
摘要翻译：一种多信号消除解调器，其中使用在相邻信号的解调期间获得的信息来解调感兴趣的信号。通过利用跨信道方式的检测信息，示例性的消除解调器提供了优越的相邻信道干扰抑制。取消解调以串行或并行方式进行。在示例性并行解调实施例中，两个信道以迭代方式同时被解调。在迭代处理中的每个步骤获得的检测信息被用作以下步骤中的解调的先验信息。在示例性串行解调实施例中，两个接收信号中的较强者被解调，并且所得到的检测信息被用作用于解调两个接收信号较弱的先验信息。对于串行和并行解调实施例，公开了用于将在一个频带中检测的符号变换为相邻频带中的相应符号的新颖技术。这样的信道间变换也在信道估计的上下文中应用。在示例性信道估计器中，基于对应于该频率信道的接收基带信号来提供针对特定频率信道的多信道参数估计。由于在提供信道参数估计中使用信道间信息，所以示例性信道估计器提供了优越的相邻信道干扰抑制。

10. 发明授权

US5889827A Method and apparatus for digital symbol detection using medium response estimates 失效
公开(公告)号：US5889827A
公开(公告)日：1999-03-30
申请号：US766167
申请日：1996-12-12
申请人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
发明人： Gregory E. Bottomley , Karl Molnar , Rajaram Ramesh
IPC分类号： H04B1/707 , H04B3/04 , H04B3/06 , H04B7/005 , H04L25/02 , H04L25/03 , H04B1/10
CPC分类号： H04B1/707 , H04B7/005 , H04L25/0202 , H04L25/03178 , H04L25/03299
摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.

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