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31. 发明申请

US20160366691A1 POWER ALLOCATION FOR SUPERPOSITION TRANSMISSION 审中-公开
标题翻译：超级分配传输的功率分配
公开(公告)号：US20160366691A1
公开(公告)日：2016-12-15
申请号：US15014800
申请日：2016-02-03
申请人： Hyukjoon KWON , Sandeep KRISHNAMURTHY , Linbo LI , Jungwon LEE
发明人： Hyukjoon KWON , Sandeep KRISHNAMURTHY , Linbo LI , Jungwon LEE
IPC分类号： H04W72/04
CPC分类号： H04L27/3405 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/007 , H04L5/003 , H04L27/18 , H04L27/3411 , H04W72/0473
摘要： Apparatuses, systems, and methods are described for power allocation in a superposition multiple access communication system capable of using non-uniform joint constellations or super-constellations. In one method, the conditional probability of a correctly-received symbol and a normalized weighting coefficient is calculated for each receiver and then the sum of weighted efficiencies is calculated. The optimal power allocation is determined for each receiver by maximizing the sum of weighted spectral efficiencies.
摘要翻译：描述了能够使用不均匀联合星座或超星座的叠加多址通信系统中的功率分配的装置，系统和方法。在一种方法中，针对每个接收机计算正确接收的符号和归一化加权系数的条件概率，然后计算加权效率之和。通过最大化加权频谱效率之和，为每个接收机确定最佳功率分配。

32. 发明授权

US08867635B1 Generalized co-phasing for multiple transmitting and receiving antennas 有权
标题翻译：用于多个发射和接收天线的广义同相
公开(公告)号：US08867635B1
公开(公告)日：2014-10-21
申请号：US13323781
申请日：2011-12-12
申请人： Jungwon Lee , Rohit U. Nabar , Jihwan P. Choi , Hui-Ling Lou
发明人： Jungwon Lee , Rohit U. Nabar , Jihwan P. Choi , Hui-Ling Lou
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B7/0682 , H04B7/0413 , H04B7/0465
摘要： A method for determining a phase of each of a plurality of transmitting antennas in a multiple input and multiple output (MIMO) communication system includes: calculating, for first and second ones of the plurality of transmitting antennas, a value based on first and second groups of channel gains, the first group including channel gains between the first transmitting antenna and each of a plurality of receiving antennas, the second group including channel gains between the second transmitting antenna and each of the plurality of receiving antennas; and determining the phase of each of the plurality of transmitting antennas based on at least the value.
摘要翻译：一种用于确定多输入多输出（MIMO）通信系统中的多个发射天线中的每一个的相位的方法，包括：针对所述多个发射天线中的第一和第二发射天线的第一和第二发射天线，基于第一和第二组所述第一组包括所述第一发射天线与所述多个接收天线中的每一个之间的信道增益，所述第二组包括所述第二发射天线与所述多个接收天线中的每一个之间的信道增益; 以及至少基于所述值确定所述多个发射天线中的每一个的相位。

33. 发明授权

US08774289B1 Soft decoding of coded bit-streams 有权
标题翻译：编码比特流的软解码
公开(公告)号：US08774289B1
公开(公告)日：2014-07-08
申请号：US13355349
申请日：2012-01-20
申请人： Hui-Ling Lou , Dimitrios-Alexandros Toumpakaris , Jungwon Lee
发明人： Hui-Ling Lou , Dimitrios-Alexandros Toumpakaris , Jungwon Lee
IPC分类号： H04L25/00
CPC分类号： H03M7/46 , H04L1/0054 , H04L1/006 , H04L1/0067 , H04L1/0071 , H04L27/34
摘要： A transmitter can include an encoder configured to encode a data sequence based on a first encoding rate to generate a first encoded bit stream having first bits with at least one first repeated bit and encode the data sequence based on a second, different encoding rate to generate a second encoded bit stream having second bits with at least one second repeated bit, where the first and second encoded bit streams each fully represent the data sequence. A receiver can include circuitry configured to produce identified repeated bits by identifying a repeated bit in the first encoded bit stream and a repeated bit in the second encoded bit stream that correspond to a same bit position, combine the first encoded bit stream and the second encoded bit stream including the identified repeated bits to generate a combined bit stream, and decode the combined bit stream.
摘要翻译：发射机可以包括编码器，其被配置为基于第一编码速率对数据序列进行编码，以产生具有至少一个第一重复比特的第一比特的第一编码比特流，并且基于第二不同编码率对该数据序列进行编码以产生第二编码比特流，具有具有至少一个第二重复比特的第二比特，其中第一和第二编码比特流各自完全表示数据序列。接收机可以包括被配置为通过识别第一编码比特流中的重复比特和对应于相同比特位置的第二编码比特流中的重复比特来产生识别的重复比特的电路，组合第一编码比特流和第二编码比特流包括所识别的重复比特以产生组合比特流，并对组合的比特流进行解码。

34. 发明授权

US08761302B1 Method and apparatus for implementing transmit diversity in OFDM systems 有权
标题翻译：在OFDM系统中实现发射分集的方法和装置
公开(公告)号：US08761302B1
公开(公告)日：2014-06-24
申请号：US13902961
申请日：2013-05-27
申请人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit U. Nabar , Yakun Sun
发明人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou , Rohit U. Nabar , Yakun Sun
IPC分类号： H04L27/00
CPC分类号： H04L27/2627 , H04B7/0413 , H04B7/0669 , H04B7/0671 , H04L1/0625 , H04L5/0023 , H04L5/0087 , H04L25/0204 , H04L25/03159 , H04L2025/03414 , H04L2025/03426
摘要： A plurality of diagonal matrices Ci is determined, where the plurality of diagonal matrices Ci is for modifying a plurality of transmit signals to be transmitted via a plurality of transmit antennas, each diagonal matrix Ci for modifying an i-th block of sub-carriers, adjacent in frequency, in the plurality of transmit signals. The plurality of diagonal matrices Ci is used to modify the plurality of transmit signals to implement transmit diversity.
摘要翻译：确定多个对角矩阵Ci，其中多个对角矩阵Ci用于修改要经由多个发射天线发射的多个发射信号，用于修改第i个子载波块的每个对角矩阵Ci，频率相邻的多个发送信号。多个对角矩阵Ci用于修改多个发射信号以实现发射分集。

35. 发明授权

US08706120B2 Mobile telecommunication system with adaptive handoff mechanism and method of operation thereof 有权
标题翻译：具有自适应切换机制的移动电信系统及其操作方法
公开(公告)号：US08706120B2
公开(公告)日：2014-04-22
申请号：US13324988
申请日：2011-12-13
申请人： Insoo Hwang , Jungwon Lee , Heejin Roh , Inyup Kang
发明人： Insoo Hwang , Jungwon Lee , Heejin Roh , Inyup Kang
IPC分类号： H04W4/00 , H04W36/00
CPC分类号： H04W36/245
摘要： A method of operation of a mobile telecommunication system includes: measuring a measured target power and a measured server power; predicting a future target power and a future server power for a prediction tap number from when the measured target power and the measured server power are measured; computing an estimation error and a prediction error associated with the future target power and the future server power; determining a handoff hysteresis level based on the estimation error and the prediction error; and sending a handoff trigger for transferring a mobile station from a server station to a target station when the future target power minus both the future server power and the handoff hysteresis level is greater than zero.
摘要翻译：一种移动通信系统的操作方法包括：测量测量的目标功率和测量的服务器功率; 从测量的目标功率和测量的服务器功率测量起，预测未来目标功率和未来服务器功率的预测抽头数; 计算与未来目标功率和未来服务器功率相关联的估计误差和预测误差; 基于估计误差和预测误差确定越区切换滞后水平; 以及当将来的目标功率减去未来的服务器功率和切换滞后水平都大于零时，发送用于将移动站从服务器站传送到目标站的切换触发。

36. 发明授权

US08699592B1 Systems and methods for estimating decoder noise power in OFDM systems 有权
标题翻译： OFDM系统中解码器噪声功率估计的系统和方法
公开(公告)号：US08699592B1
公开(公告)日：2014-04-15
申请号：US13157917
申请日：2011-06-10
申请人： Jiwoong Choi , Yakun Sun , Jungwon Lee , Jianyi Huang
发明人： Jiwoong Choi , Yakun Sun , Jungwon Lee , Jianyi Huang
IPC分类号： H04K1/10
CPC分类号： H04B7/0413 , H04L1/0036 , H04L25/0202 , H04L25/0204 , H04L27/2647
摘要： Systems and methods for computing a decoder noise power estimate are provided. A pilot signal transmitted through a fading channel from a wireless transmission source is received. Signal power of the received pilot signal, channel noise power, and channel estimation error are computed. The decoder noise power estimate is determined based on the computed signal power, channel noise power, and channel estimation error.
摘要翻译：提供了用于计算解码器噪声功率估计的系统和方法。接收通过衰落信道从无线发送源发送的导频信号。计算接收到的导频信号的信号功率，信道噪声功率和信道估计误差。基于所计算的信号功率，信道噪声功率和信道估计误差来确定解码器噪声功率估计。

37. 发明授权

US08681888B1 Link adaptation for OFDM systems 有权
标题翻译： OFDM系统的链路适配
公开(公告)号：US08681888B1
公开(公告)日：2014-03-25
申请号：US13619523
申请日：2012-09-14
申请人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou
发明人： Jungwon Lee , Jihwan P. Choi , Hui-Ling Lou
IPC分类号： H04L27/28
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0009 , H04L1/203 , H04L5/0007 , H04L5/0046 , H04W24/08
摘要： A method includes determining one or more metrics indicative of at least one of (i) interference on a communication link, (ii) noise on the communication link, and (iii) performance of a receiver receiving packets via the communication link, selecting a modulation and coding scheme as a function of (i) the determined one or more metrics, and (ii) one or more Quality of Service requirements for the communication link, and correcting the selected modulation and coding scheme using a current value of a correction factor. The corrected modulation and coding scheme is to be used to generate one or more packets. The method also includes determining an error rate corresponding to packets previously transmitted over the communication link, and adjusting the correction factor based on the determined error rate. Adjusting the correction factor includes incrementing or decrementing the correction factor.
摘要翻译：一种方法包括确定一个或多个度量，其指示以下中的至少一个：（i）通信链路上的干扰，（ii）通信链路上的噪声，以及（iii）经由通信链路接收分组的接收机的性能，选择调制以及作为（i）确定的一个或多个度量的函数的编码方案，以及（ii）通信链路的一个或多个服务质量要求，以及使用校正因子的当前值来校正所选择的调制和编码方案。校正的调制和编码方案将用于生成一个或多个分组。该方法还包括确定对应于先前通过通信链路发送的分组的错误率，以及基于所确定的错误率来调整校正因子。调整校正因子包括增加或减少校正因子。

38. 发明授权

US08654902B2 BICM decoding in the presence of co-channel interference 有权
标题翻译：在存在同频道干扰的情况下进行BICM解码
公开(公告)号：US08654902B2
公开(公告)日：2014-02-18
申请号：US13402381
申请日：2012-02-22
申请人： Jungwon Lee , Rohit U. Nabar , Hui-Ling Lou
发明人： Jungwon Lee , Rohit U. Nabar , Hui-Ling Lou
IPC分类号： H04L27/06
CPC分类号： H04B1/1027 , H04L25/067
摘要： Systems and methods are provided for computing soft information for digital information based on a received signal, where the received signal suffers from noise and interference. A receiver that decodes the received signal may estimate channel information, such as the channel gain, associated with the interfering source. The receiver may also obtain modulation information through a backbone network or by decoding control information transmitted by the interfering source. Using the modulation information and the channel information, the receiver may estimate the effect that interference has on the received signal, and may compute soft information (e.g., a log-likelihood ratio) for the digital information.
摘要翻译：提供了系统和方法，用于基于接收到的信号来计算用于数字信息的软信息，其中所接收的信号受到噪声和干扰的影响。对接收到的信号进行解码的接收机可以估计与干扰源相关联的信道信息，例如信道增益。接收机还可以通过骨干网获得调制信息，或通过解码由干扰源发送的控制信息。使用调制信息和信道信息，接收机可以估计干扰对接收信号的影响，并且可以计算数字信息的软信息（例如，对数似然比）。

39. 发明授权

US08625694B1 Signal processing for independently produced signals 失效
标题翻译：用于独立产生信号的信号处理
公开(公告)号：US08625694B1
公开(公告)日：2014-01-07
申请号：US12938718
申请日：2010-11-03
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04L27/3405 , H04L1/0048 , H04L1/0054 , H04L27/38
摘要： Systems and techniques relating to wireless communications are described. A described technique includes receiving a signal that represents concurrent wireless data communications, where the signal is based on superimposed signals modulated using different respective constellations; detecting a first signal from the received signal over a first combined constellation, the combined constellation being based on the respective constellations; modifying the received signal based on the first detected signal to remove a signal contribution associated with the first detected signal; and detecting a second signal from the modified received signal over a second constellation. The second constellation can be based on the respective constellations absent a constellation of the respective constellations that is associated with the first detected signal.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括接收表示并发无线数据通信的信号，其中信号基于使用不同的相应星座调制的叠加信号; 通过第一组合星座从接收到的信号中检测第一信号，所述组合星座基于相应的星座; 基于所述第一检测信号修改接收信号以去除与所述第一检测信号相关联的信号贡献; 以及通过第二星座从所述修改的接收信号中检测第二信号。第二星座可以基于不存在与第一检测信号相关联的相应星座的星座的相应星座。

40. 发明授权

US08595578B1 Significance of retransmission used in subsequent decoding 有权
标题翻译：在后续解码中使用重传的意义
公开(公告)号：US08595578B1
公开(公告)日：2013-11-26
申请号：US12940784
申请日：2010-11-05
申请人： Jungwon Lee , Jiwoong Choi
发明人： Jungwon Lee , Jiwoong Choi
IPC分类号： H04L1/18
CPC分类号： H04L1/1845 , G06F11/1004 , H04L1/1816 , H04L1/1819
摘要： Systems and techniques relating to wireless communications are described. A described technique includes receiving signals representing wireless data transmissions that are based on a symbol, the received signals including one or more first signals and a second signal, where a decoded version of the one or more first signals previously failed to successfully resolve the symbol. The second signal can be transmitted in response to the one or more first signals failing to successfully resolve the symbol. The technique includes determining the symbol based on the received signals, where the determining places more significance to the second signal than the one or more first signals.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括接收表示基于符号的无线数据传输的信号，所接收的信号包括一个或多个第一信号和第二信号，其中一个或多个第一信号的解码版本先前未成功地解析该符号。可以响应于一个或多个第一信号不能成功解析符号而发送第二信号。该技术包括基于接收到的信号确定符号，其中确定比第一信号比第二信号更有意义。

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