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1. 发明申请

US20080043877A1 Power De-Rating Reduction In a Transmitter 有权
标题翻译：变送器功率降低
公开(公告)号：US20080043877A1
公开(公告)日：2008-02-21
申请号：US11465976
申请日：2006-08-21
申请人： Ning Chen , Jeffrey Keating , Stephen C. Ma , James W. McCoy
发明人： Ning Chen , Jeffrey Keating , Stephen C. Ma , James W. McCoy
IPC分类号： H04L27/00
CPC分类号： H04L27/2623
摘要： A wireless transmitter exhibits improved power de-rating reduction, which improves the power efficiency of non-constant envelop communication systems by: mapping N first samples of a first discrete Fourier transform (DFT) of a group of coded symbols to M sub-carriers according to a first sub-carrier mapping rule, where M is greater than N, performing a first inverse DFT (IDFT) on the M sub-carriers to provide M second samples, clipping the M second samples according to a clipping rule to provide M third samples, performing a second DFT on the M third samples, de-mapping the M third samples to N fourth samples, and mapping the N fourth samples to O subcarriers according to a predetermined second subcarrier mapping rule, where O is greater than or equal to M. The transmitter may be advantageously implemented within a single carrier transmission scheme, such as systems that implement a single carrier-frequency division multiple access (SC-FDMA) uplink transmission scheme.
摘要翻译：一种无线发射机具有改善的降低功率的功率，其通过以下方式提高了非恒定包络通信系统的功率效率：将编码符号组的第一离散付里叶变换（DFT）的N个第一采样映射到M个子载波，对于M大于N的第一子载波映射规则，在M个子载波上执行第一反向DFT（IDFT）以提供M个第二采样，根据限幅规则对M个第二采样进行削波以提供M个采样，对M个第三采样执行第二DFT，将M个第三采样去映射到N个第四采样，并根据预定的第二子载波映射规则将N个第四采样映射到O个子载波，其中O大于或等于可以有利地在单载波传输方案中实现发射机，诸如实现单载波频分多址（SC-FDMA）上行链路传输方案的系统。

2. 发明授权

US07778347B2 Power de-rating reduction in a transmitter 有权
标题翻译：发射机功率降低
公开(公告)号：US07778347B2
公开(公告)日：2010-08-17
申请号：US11465976
申请日：2006-08-21
申请人： Ning Chen , Jeffrey Keating , Stephen C. Ma , James W. McCoy
发明人： Ning Chen , Jeffrey Keating , Stephen C. Ma , James W. McCoy
IPC分类号： H04L27/00
CPC分类号： H04L27/2623
摘要： A wireless transmitter is configured to map N first samples of a first discrete Fourier transform (DFT) of a group of coded symbols to M sub-carriers according to a first sub-carrier mapping rule. In this case, M is greater than N. The wireless transmitter is also configure to perform a first inverse DFT (IDFT) on the M sub-carriers to provide M second samples and clip the M second samples according to a clipping rule to provide M third samples. The wireless transmitter is further configured to perform a second DFT on the M third samples, de-map the M third samples to N fourth samples, and map the N fourth samples to O subcarriers according to a predetermined second subcarrier mapping rule. In this case, O is greater than or equal to M.
摘要翻译：无线发射机被配置为根据第一子载波映射规则将N个编码符号组的第一离散付里叶变换（DFT）的N个第一样本映射到M个子载波。在这种情况下，M大于N.无线发射机还被配置为在M个子载波上执行第一反向DFT（IDFT），以提供M个第二采样，并根据限幅规则对M个第二采样进行削波，以提供M 第三个样本。无线发射机还被配置为对M个第三采样执行第二DFT，将M个第三采样映射到N个第四采样，并根据预定的第二子载波映射规则将N个第四采样映射到O个子载波。在这种情况下，O大于或等于M.

3. 发明授权

US09083496B2 Adaptive antenna system signal detection 有权
公开(公告)号：US09083496B2
公开(公告)日：2015-07-14
申请号：US13136489
申请日：2011-08-01
申请人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
发明人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
IPC分类号： H04B7/208 , H04L5/00 , H04L1/00 , H04B17/309 , H04B17/336
CPC分类号： H04L5/0053 , H04B17/309 , H04B17/336 , H04L1/0026
摘要： A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predetermined frequency band; embedding first and second sets of downlink subframe parameters in the downlink subframe; transmitting the downlink subframe; receiving the downlink subframe; processing data in the preamble to obtain channel quality indicator (CQI) information; and using the CQI information to select either the first set or set second set of downlink subframe parameters to process the data bursts in the downlink subframe.

4. 发明申请

US20120026906A1 Adaptive antenna system signal detection 审中-公开
标题翻译：自适应天线系统信号检测
公开(公告)号：US20120026906A1
公开(公告)日：2012-02-02
申请号：US13136489
申请日：2011-08-01
申请人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
发明人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
IPC分类号： H04W24/00 , H04L12/26
CPC分类号： H04L5/0053 , H04B17/309 , H04B17/336 , H04L1/0026
摘要： A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predetermined frequency band; embedding first and second sets of downlink subframe parameters in the downlink subframe; transmitting the downlink subframe; receiving the downlink subframe; processing data in the preamble to obtain channel quality indicator (CQI) information; and using the CQI information to select either the first set or set second set of downlink subframe parameters to process the data bursts in the downlink subframe.
摘要翻译：本文公开了一种在通信系统中处理信号的系统和方法。该系统和方法包括处理步骤和处理逻辑，用于产生包括预定频带内的前同步码和多个数据脉冲串的下行链路子帧; 在下行链路子帧中嵌入第一和第二组下行子帧参数; 发送下行子帧; 接收下行链路子帧; 处理前导码中的数据以获得信道质量指示符（CQI）信息; 以及使用所述CQI信息来选择所述第一集合或第二组下行链路子帧参数，以处理所述下行链路子帧中的数据突发。

5. 发明授权

US07990941B2 Adaptive antenna system signal detection 有权
标题翻译：自适应天线系统信号检测
公开(公告)号：US07990941B2
公开(公告)日：2011-08-02
申请号：US11830458
申请日：2007-07-30
申请人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
发明人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
IPC分类号： H04B7/208
CPC分类号： H04L5/0053 , H04B17/309 , H04B17/336 , H04L1/0026
摘要： A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predetermined frequency band; embedding first and second sets of downlink subframe parameters in the downlink subframe; transmitting the downlink subframe; receiving the downlink subframe; processing data in the preamble to obtain channel quality indicator (CQI) information; and using the CQI information to select either the first set or set second set of downlink subframe parameters to process the data bursts in the downlink subframe.
摘要翻译：本文公开了一种在通信系统中处理信号的系统和方法。该系统和方法包括处理步骤和处理逻辑，用于产生包括预定频带内的前同步码和多个数据脉冲串的下行链路子帧; 在下行链路子帧中嵌入第一和第二组下行子帧参数; 发送下行子帧; 接收下行链路子帧; 处理前导码中的数据以获得信道质量指示符（CQI）信息; 以及使用所述CQI信息来选择所述第一集合或第二组下行链路子帧参数，以处理所述下行链路子帧中的数据突发。

6. 发明申请

US20090161627A1 Switching communication networks in a mobile device 审中-公开
标题翻译：在移动设备中切换通信网络
公开(公告)号：US20090161627A1
公开(公告)日：2009-06-25
申请号：US12002903
申请日：2007-12-19
申请人： Natarajan Ekambaram , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
发明人： Natarajan Ekambaram , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
IPC分类号： H04Q7/00
CPC分类号： H04W72/1215 , H04W48/18 , H04W76/15 , H04W88/06
摘要： Methods and corresponding systems in a mobile station for switching communication networks include scheduling an alternate network period during a first communication session between a mobile station and a first network transceiver in a first network, wherein the first network uses a first protocol. During the alternate network period the mobile station searches for a transmission from a second network transceiver in a second network, wherein the second network uses a second protocol. A second communication session is requested between the mobile station and the second network transceiver. A second communication session is initiated between the mobile station and the second network transceiver.
摘要翻译：用于交换通信网络的移动台中的方法和对应系统包括：在第一网络中的移动站和第一网络收发信机之间的第一通信会话期间调度备用网络周期，其中所述第一网络使用第一协议。在替代网络周期期间，移动台在第二网络中从第二网络收发器搜索传输，其中第二网络使用第二协议。在移动台和第二网络收发器之间请求第二通信会话。第二通信会话在移动台和第二网络收发器之间发起。

7. 发明申请

US20090034480A1 Adaptive antenna system signal detection 有权
标题翻译：自适应天线系统信号检测
公开(公告)号：US20090034480A1
公开(公告)日：2009-02-05
申请号：US11830458
申请日：2007-07-30
申请人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
发明人： Brian D. Levin , Cinda L. Flynn , Jeffrey Keating , Stephen C. Ma
IPC分类号： H04Q7/00
CPC分类号： H04L5/0053 , H04B17/309 , H04B17/336 , H04L1/0026
摘要： A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predetermined frequency band; embedding first and second sets of downlink subframe parameters in the downlink subframe; transmitting the downlink subframe; receiving the downlink subframe; processing data in the preamble to obtain channel quality indicator (CQI) information; and using the CQI information to select either the first set or set second set of downlink subframe parameters to process the data bursts in the downlink subframe.
摘要翻译：本文公开了一种在通信系统中处理信号的系统和方法。该系统和方法包括处理步骤和处理逻辑，用于产生包括预定频带内的前同步码和多个数据脉冲串的下行链路子帧; 在下行链路子帧中嵌入第一和第二组下行子帧参数; 发送下行子帧; 接收下行链路子帧; 处理前导码中的数据以获得信道质量指示符（CQI）信息; 以及使用所述CQI信息来选择所述第一集合或第二组下行链路子帧参数，以处理所述下行链路子帧中的数据突发。

8. 发明授权

US5619211A Position locating and communication system using multiple satellite constellations 失效
标题翻译：使用多个卫星星座的位置定位和通信系统
公开(公告)号：US5619211A
公开(公告)日：1997-04-08
申请号：US341244
申请日：1994-11-17
申请人： Philip R. Horkin , Stephen C. Ma , Isaac N. Durboraw, III , George W. Muncaster
发明人： Philip R. Horkin , Stephen C. Ma , Isaac N. Durboraw, III , George W. Muncaster
IPC分类号： G01S19/38 , H04B7/185 , G01S5/02
CPC分类号： H04B7/1855 , H04B7/18508 , H04B7/18554
摘要： A communication and position locating system (2) suitable for air traffic control is described. Multiple satellites (40) are provided in two geosynchronous constellations. One constellation (e.g., 4 satellites) has a first closed ground track (14). The other (e.g., 2 satellites (161, 182)) has a different ground track (18) or is geostationary, located outside of the first ground track (14). Geolocation information is transmitted by the satellites (40) to aircraft (28) and ground stations (26) so that aircraft (28) can determine their current position. A pseudo range correction map is provided to the aircraft (28) by the base stations (26) to permit differential geolocation measurements. The satellites (40) include communication transceivers (80) so that aircraft (28) can communicate voice and data to other aircraft (28) and to the ground stations (26, 30, 32) and automatically report their position to air traffic control centers (30), e.g., via the satellites (40). High positional accuracy over large geographic areas is obtained.
摘要翻译：描述适用于空中交通管制的通信和位置定位系统（2）。在两个地球同步星座中提供了多个卫星（40）。一个星座（例如，4颗卫星）具有第一封闭的地面轨道（14）。另一个（例如，2个卫星（161,182））具有不同的地面轨道（18）或位于第一地面轨道（14）外的地球静止轨道。卫星（40）将地理位置信息传输到飞机（28）和地面站（26），以使飞机（28）能够确定其当前位置。由基站（26）向飞行器（28）提供伪距校正图，以允许差分地理位置测量。卫星（40）包括通信收发器（80），使得飞机（28）可以将语音和数据传送到其他飞行器（28）和地面站（26,30,32），并自动将其位置报告给空中交通管制中心（30），例如经由卫星（40）。获得了大地理区域的高位置精度。

9. 发明授权

US4998111A CPS transform correlation receiver and method 失效
标题翻译： CPS变换相关接收机和方法
公开(公告)号：US4998111A
公开(公告)日：1991-03-05
申请号：US441670
申请日：1989-11-27
申请人： Stephen C. Ma , Isaac N. Durboraw, III
发明人： Stephen C. Ma , Isaac N. Durboraw, III
IPC分类号： G01S1/00
CPC分类号： G01S19/42 , G01S19/24
摘要： A method for rapid acquisition of multiple GPS signals builds upon fast Fourier transformation of input GPS signals to simultaneously track multiple satellites and derive psuedorange measurements that are suitable for navigation solution. The method utilizes 2M samples of the reference signal with N samples of the signal set from the satellites (one millisecond of actual data) to directly compute the fractional psuedorange values for four (4) or more satellites. The FFT process is incorporated with a process to determine an integer psuedorange. The integer psuedorange is then combined with a fractional psuedorange to define the GPS navigation solution.
摘要翻译：用于快速获取多个GPS信号的方法建立在输入GPS信号的快速傅立叶变换之上，以同时跟踪多个卫星并导出适用于导航解决方案的伪距测量。该方法利用来自卫星（1毫秒实际数据）的信号集合的N个样本的参考信号的2M个样本来直接计算四（4）个或更多个卫星的分数伪距值。 FFT过程与一个确定整数psueorange的过程结合在一起。然后将整数psuedorange与一个分数的psuedorange组合以定义GPS导航解决方案。

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