公开(公告)号：US08270376B2

公开(公告)日：2012-09-18

申请号：US11575121

申请日：2005-09-07

申请人： Erik Dahlman ,  Eva Englund ,  Jung-Fu Cheng ,  Yi-Pin Eric Wang ,  Maria Edvardsson ,  Stefan Parkvall ,  Janne Peisa

发明人： Erik Dahlman ,  Eva Englund ,  Jung-Fu Cheng ,  Yi-Pin Eric Wang ,  Maria Edvardsson ,  Stefan Parkvall ,  Janne Peisa

IPC分类号： H04B7/216

CPC分类号： H04L1/1692 ,  H04L1/1812 ,  H04L1/1854 ,  H04W52/48

摘要： Methods for improving uplink communications in a Wideband Code Division Multiple Access (WCDMA) communication system, wherein mobile terminals can transmit at various transmission power levels. In a mobile terminal, the method includes the steps of receiving a configuration message having at least one of a power offset parameter and a maximum number of retransmission attempts parameter; when the mobile terminal performs a non-scheduled transmission, it transmits according to the parameters contained in the configuration message. In a network node, the method includes the steps of transmitting to at least one mobile terminal the configuration message having at least one of a power offset parameter and a maximum number of retransmission attempts parameter; and, adjusting a power setting for the transmission of acknowledgement or negative-acknowledgement messages from the wireless network to one or more of mobile terminals.

摘要翻译： 用于改善宽带码分多址（WCDMA）通信系统中的上行链路通信的方法，其中移动终端可以以各种传输功率电平进行传输。 在移动终端中，该方法包括以下步骤：接收具有功率偏移参数和最大重传次数参数中的至少一个参数的配置消息; 当移动终端执行非调度传输时，它根据配置消息中包含的参数进行传输。 在网络节点中，该方法包括以下步骤：向至少一个移动终端发送具有功率偏移参数和最大重传次数参数中的至少一个参数的配置消息; 以及调整用于从所述无线网络向一个或多个移动终端传送确认或否定确认消息的功率设置。

公开(公告)号：US20120177137A1

公开(公告)日：2012-07-12

申请号：US13417781

申请日：2012-03-12

申请人： Jung-Fu Cheng ,  Yang Hu

发明人： Jung-Fu Cheng ,  Yang Hu

IPC分类号： H04L27/28

CPC分类号： H04L1/0005 ,  H04L1/0003 ,  H04L1/0011 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0058

摘要： A system, method and node for modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel. The method determines an actual number of orthogonal frequency division multiplexing (OFDM) symbols, NOS utilized for the shared Data Channel. A modulation order for transmission of data on the shared Data Channel is increased when the actual number of OFDM symbols NOS is less than 11 and decreased when NOS is more than 11. A modulation and coding scheme field (IMCS) of a downlink control information of the shared Data Channel may also be determined. If 0≦IMCS+11−NOS≦28, the modulation order is modified by utilizing a factor of (IMCS+11−NOS) in a standardized modulation scheme. If it is determined that IMCS+11−NOS 28, the modulation order is set to 64 Quadtrative Amplitude Modulation (64QAM).

摘要翻译： 用于长期演进（LTE）共享数据信道的调制和编码方案调整的系统，方法和节点。 该方法确定正交频分复用（OFDM）符号的实际数量，用于共享数据信道的NOS。 当OFDM符号的实际数目NOS小于11时，在共享数据信道上传输数据的调制顺序增加，当NOS大于11时，调制顺序减小。一种下行链路控制信息的调制和编码方案字段（IMCS） 也可以确定共享数据信道。 如果0＆nlE; IMCS + 11-NOS＆nlE; 28，通过在标准化调制方案中利用因子（IMCS + 11-NOS）修改调制阶数。 如果确定IMCS + 11-NOS <0，则将调制阶数设置为正交相移键控（QPSK）。 如果确定IMCS + 11-NOS> 28，则将调制阶数设置为64四乘调制（64QAM）。

公开(公告)号：US20120027115A1

公开(公告)日：2012-02-02

申请号：US13253412

申请日：2011-10-05

申请人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl J. Molnar ,  Jung-Fu Cheng

发明人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl J. Molnar ,  Jung-Fu Cheng

IPC分类号： H04B7/02

CPC分类号： H04B1/712 ,  H04B1/7103 ,  H04B1/7105 ,  H04B1/71055 ,  H04B1/7107 ,  H04B1/71072 ,  H04B7/04 ,  H04B7/0684 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0048 ,  H04L1/18 ,  H04L25/021 ,  H04L25/0224 ,  H04L25/03012 ,  H04L25/03318 ,  H04L25/03331 ,  H04W52/16 ,  H04W52/325 ,  H04W52/346 ,  H04W52/42

摘要： A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals.

摘要翻译： 无线通信接收机通过在损伤相关计算中考虑不同的发射功率分配和不同的发射天线功率分布来改善MIMO / MISO系统中的信号损害相关估计。 接收机可以根据各种架构来实现，包括但不限于连续干扰消除（SIC）广义RAKE（G-RAKE），联合检测（JD）G-RAKE和最小均方误差（MMSE） ）G-RAKE。 不考虑所采用的特定接收机架构，改进的损害相关可以用于计算改进的（RAKE）信号组合权重和/或改善用于在通过MIMO发送HSDPA信道的宽带CDMA（W-CDMA）系统中操作的接收机报告的信道质量估计 或MISO发射机。 发射机可以被配置为通过信令一个或多个值（例如数据到导频信号发射功率比和/或数据的发射天线功率分布）来促进在MIMO / MISO环境中操作的无线通信接收机的损害相关确定，以及 导频信号。

公开(公告)号：US20110280287A1

公开(公告)日：2011-11-17

申请号：US12779106

申请日：2010-05-13

申请人： Jung-Fu Cheng ,  Dennis Hui ,  Kambiz Zangi ,  Leonid Krasny

发明人： Jung-Fu Cheng ,  Dennis Hui ,  Kambiz Zangi ,  Leonid Krasny

IPC分类号： H04B1/38 ,  H04B7/02

CPC分类号： H04W72/0413 ,  H04L1/0019 ,  H04L1/0028 ,  H04L1/20 ,  H04W72/042

摘要： The required bitrate for reporting channel state information from a network transceiver to the network is dramatically reduced, while maintaining fidelity of channel estimates, by exploiting prior channel estimates and the time correlation of channel response. For a selected set of sub-carriers, the transceiver estimates channel frequency response from pilot signals. The transceiver also predicts the frequency response for each selected sub-carrier, by multiplying a state vector comprising prior frequency response estimate and a coefficient vector comprising linear predictive coefficients. The predicted frequency response is subtracted from the estimated frequency response, and the prediction error is quantized and transmitted to the network. The network maintains a corresponding state vector and predictive coefficient vector, and also predicts a frequency response for each selected sub-carrier. The received prediction error is inverse quantized and subtracted from the predicted frequency response to yield a frequency response corresponding to that estimated at the transceiver.

摘要翻译： 通过利用先前的信道估计和信道响应的时间相关性，可以显着降低从网络收发器向网络报告信道状态信息所需的比特率，同时保持信道估计的保真度。 对于所选择的一组子载波，收发器估计来自导频信号的信道频率响应。 收发器还通过将包括先前频率响应估计的状态向量和包括线性预测系数的系数向量相乘来预测每个所选子载波的频率响应。 从估计的频率响应中减去预测的频率响应，并将预测误差量化并发送到网络。 网络维持相应的状态向量和预测系数向量，并且还预测每个选择的子载波的频率响应。 接收的预测误差被反量化，并从预测的频率响应中减去，以产生与在收发机处估计的频率响应相对应的频率响应。

公开(公告)号：US08045638B2

公开(公告)日：2011-10-25

申请号：US11449258

申请日：2006-06-08

申请人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl J. Molnar ,  Jung-Fu Cheng

发明人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl J. Molnar ,  Jung-Fu Cheng

IPC分类号： H04B7/02

CPC分类号： H04B1/712 ,  H04B1/7103 ,  H04B1/7105 ,  H04B1/71055 ,  H04B1/7107 ,  H04B1/71072 ,  H04B7/04 ,  H04B7/0684 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0048 ,  H04L1/18 ,  H04L25/021 ,  H04L25/0224 ,  H04L25/03012 ,  H04L25/03318 ,  H04L25/03331 ,  H04W52/16 ,  H04W52/325 ,  H04W52/346 ,  H04W52/42

摘要： A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals.

摘要翻译： 无线通信接收机通过在损伤相关计算中考虑不同的发射功率分配和不同的发射天线功率分布来改善MIMO / MISO系统中的信号损害相关估计。 接收机可以根据各种架构来实现，包括但不限于连续干扰消除（SIC）广义RAKE（G-RAKE），联合检测（JD）G-RAKE和最小均方误差（MMSE） ）G-RAKE。 不考虑所采用的特定接收机架构，改进的损害相关可以用于计算改进的（RAKE）信号组合权重和/或改善用于在通过MIMO发送HSDPA信道的宽带CDMA（W-CDMA）系统中操作的接收机报告的信道质量估计 或MISO发射机。 发射机可以被配置为通过信令一个或多个值（例如数据到导频信号发射功率比和/或数据的发射天线功率分布）来促进在MIMO / MISO环境中操作的无线通信接收机的损害相关确定，以及 导频信号。

公开(公告)号：US07979075B2

公开(公告)日：2011-07-12

申请号：US11555294

申请日：2006-11-01

申请人： Jung-Fu Cheng ,  Stephen J. Grant ,  Dennis Hui ,  Karl James Molnar

发明人： Jung-Fu Cheng ,  Stephen J. Grant ,  Dennis Hui ,  Karl James Molnar

IPC分类号： H04W72/00

CPC分类号： H04L1/0026 ,  H04L1/0016 ,  H04L1/20 ,  H04W48/08 ,  H04W72/0413 ,  H04W72/085

摘要： Channel Quality Indicator (CQI) tables are tailored to one or more cells of interest. Tailoring CQI tables to individual cells permits devices such as radio base stations to more reliably and accurately allocate radio resources to those cells since channel conditions vary from cell to cell. According to one embodiment, a table of CQI values is composed by analyzing information indicating channel quality in a cell of interest and generating at least one table of CQI values tailored to the cell of interest based on the information analyzed. The tailored CQI table may be deployed to another device for use in reporting channel quality information. The device may report channel quality by accessing the tailored CQI and identifying the range of CQI values that includes a channel quality estimate derived by the device. The device generates a channel quality information message based on the identified range of CQI values.

摘要翻译： 信道质量指示符（CQI）表针对感兴趣的一个或多个小区而定制。 由于信道条件因单元而异，所以将CQI表裁定到单个小区允许诸如无线电基站之类的设备更可靠地且准确地分配无线电资源给这些小区。 根据一个实施例，通过分析指示感兴趣的小区中的信道质量的信息并基于分析的信息生成针对感兴趣小区定制的CQI值的至少一个表格来组成CQI值表。 可以将定制的CQI表部署到用于报告信道质量信息的另一设备。 设备可以通过访问定制的CQI并且识别包括由设备导出的信道质量估计的CQI值的范围来报告信道质量。 该设备基于所识别的CQI值范围来生成信道质量信息消息。

公开(公告)号：US20100260036A1

公开(公告)日：2010-10-14

申请号：US12740457

申请日：2008-10-28

申请人： Karl Molnar ,  Jung-Fu Cheng ,  Stefan Parkvall

发明人： Karl Molnar ,  Jung-Fu Cheng ,  Stefan Parkvall

IPC分类号： H04J11/00 ,  H04L1/02

CPC分类号： H04L5/0053

摘要： Control channel information is formulated for transmission in orthogonal frequency division multiplexing (OFDM) systems. In an example embodiment, a method entails formulating control channel information for a transmitting device operating in an OFDM system in which a control channel spans n OFDM symbols, with n being an integer. The method includes acts of allocating, creating, and mapping. Control channel data is allocated to at least one set of resource element groups. At least one order for the set of resource element groups is created in accordance with one or more permutation mechanisms that involve at least one interleaving sequence having a low cross-correlation property. The set of resource element groups is mapped to resource elements of the n OFDM symbols of the control channel responsive to the order that is created using the permutation mechanism(s). The permutation mechanisms may include interleaving sequence(s) and/or cyclic shift(s).

摘要翻译： 为正交频分复用（OFDM）系统中的传输制定了控制信道信息。 在一个示例实施例中，一种方法需要为其中控制信道跨越n个OFDM符号的OFDM系统中操作的发送设备制定控制信道信息，其中n为整数。 该方法包括分配，创建和映射的行为。 控制信道数据被分配给至少一组资源元素组。 根据涉及具有低互相关特性的至少一个交织序列的一个或多个置换机制，创建用于该组资源元素组的至少一个顺序。 响应于使用排列机制创建的顺序，将该组资源元素组映射到控制信道的n个OFDM符号的资源元素。 置换机制可以包括交织序列和/或循环移位。

公开(公告)号：US07810018B2

公开(公告)日：2010-10-05

申请号：US11553767

申请日：2006-10-27

申请人： Jung-Fu Cheng

发明人： Jung-Fu Cheng

IPC分类号： H03M13/03

CPC分类号： H04M15/00 ,  H03M13/2957 ,  H03M13/3905 ,  H03M13/3972 ,  H03M13/413 ,  H04B2201/709727

摘要： In one or more embodiments, a method of processing a soft value sequence according to an iterative soft-input-soft-output (SISO) algorithm comprises carrying out sliding-window processing of the soft value sequence in a first iteration using first window placements and in a second iteration using second window placements, and varying the window placements between the first and second iterations. In at least one embodiment, a communication receiver circuit is configured to carry out iterative SISO processing, wherein it processes a soft value sequence using sliding windows, and wherein it varies window placements between one or more iterations. The communication receiver circuit comprises, for example, all or part of a turbo decoding circuit or other type of iterative block decoding circuit, an equalization and decoding circuit, a soft demodulation and decoding circuit, a multi-user detection and decoding circuit, or a multiple-input-multiple-output detection and decoding circuit.

摘要翻译： 在一个或多个实施例中，根据迭代软输入软输出（SISO）算法来处理软值序列的方法包括：使用第一窗口布局在第一次迭代中执行软值序列的滑动窗口处理;以及 在使用第二窗口布局的第二次迭代中，以及在第一和第二迭代之间改变窗口布局。 在至少一个实施例中，通信接收器电路被配置为执行迭代SISO处理，其中它使用滑动窗口处理软值序列，并且其中它改变一个或多个迭代之间的窗口布置。 通信接收电路例如包括turbo解码电路或其他类型的迭代块解码电路，均衡解码电路，软解调和解码电路，多用户检测和解码电路或全部或部分 多输入多输出检测和解码电路。

公开(公告)号：US20100251082A1

公开(公告)日：2010-09-30

申请号：US12739854

申请日：2008-10-23

申请人： Jung-Fu Cheng ,  Mats Ahlander ,  Christer Aalto

发明人： Jung-Fu Cheng ,  Mats Ahlander ,  Christer Aalto

IPC分类号： H03M13/09 ,  G06F11/10

CPC分类号： H03M13/09 ,  H03M13/2957 ,  H03M13/2975 ,  H04L1/0041 ,  H04L1/0051 ,  H04L1/0061

摘要： A method and apparatus for providing adaptive cyclic redundancy check (CRC) computation is disclosed. A transport block size is determined. Transport block (TB) CRC bits are computed with a first CRC generator when the TB size is less than or equal to a predetermined threshold. TB CRC bits are computed with a second CRC generator when the transport block size is greater than the predetermined threshold. When the TB is greater than the predetermined threshold, the TB is segmented into code blocks (CBs) and CB CRC bits are computed with the first CRC generator. A method and apparatus for handling adaptively cyclic redundancy check (CRC) encoded transport blocks (TBs) is also disclosed. A TB is received. The TB is CRC checked based on a first CRC generator when the TB size is less than or equal to a predetermined threshold. Code blocks of the TB are CRC checked based on the first CRC generator when the TB size is greater than the predetermined threshold. When the TB size is greater than the predetermined threshold, the code blocks are concatenated, and the TB is CRC checked based on a second CRC generator.

摘要翻译： 公开了一种用于提供自适应循环冗余校验（CRC）计算的方法和装置。 确定传输块大小。 传输块（TB）当TB大小小于或等于预定阈值时，使用第一CRC生成器计算CRC比特。 当传输块大小大于预定阈值时，用第二CRC产生器计算TB CRC比特。 当TB大于预定阈值时，TB被分割为码块（CB），并且用第一CRC产生器计算CB CRC比特。 还公开了一种用于处理自适应循环冗余校验（CRC）编码传输块（TB）的方法和装置。 收到结核病。 当TB大小小于或等于预定阈值时，TB基于第一CRC发生器进行CRC校验。 当TB大于预定阈值时，基于第一CRC生成器对TB的代码块进行CRC校验。 当TB大小大于预定阈值时，代码块被级联，并且基于第二CRC产生器检查TB是否被CRC校验。

公开(公告)号：US20090310708A1

公开(公告)日：2009-12-17

申请号：US12239889

申请日：2008-09-29

申请人： Jung-Fu Cheng ,  Tracy Fulghum ,  Douglas Cairns

发明人： Jung-Fu Cheng ,  Tracy Fulghum ,  Douglas Cairns

IPC分类号： H04L27/36 ,  H04L27/00 ,  H04L27/20

CPC分类号： H04L25/0236 ,  H04B2201/70701 ,  H04B2201/709727 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0068 ,  H04L25/021 ,  H04L25/0226 ,  H04L25/03044 ,  H04L25/03324 ,  H04L25/061 ,  H04L27/0012 ,  H04L27/227 ,  H04L27/3455 ,  H04L27/3818 ,  H04L2001/0098 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03796 ,  H04L2027/0061 ,  H04L2027/0093

摘要： A transmitter, channel coder, and method for coding and transmitting a sequence of symbols in a digital communication system utilizing soft pilot symbols. In one embodiment, the transmitter transmits a set of soft pilot symbols with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16 QAM or 64 QAM. The transmitter shares the modulation type and location (time/frequency/code) of the soft pilot symbols with a receiver. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. In another embodiment, soft pilot symbols are inserted by low-level puncturing of channel encoded bits and replacing the punctured bits with known bit patterns.

摘要翻译： 用于使用软导频符号在数字通信系统中对符号序列进行编码和发送的发射机，信道编码器和方法。 在一个实施例中，发射机通过用低阶调制（诸如BPSK或QPSK）调制软导频符号，以较高阶调制方式调制剩余符号，从而发送具有比序列中的剩余符号更高的可靠性的一组软导频符号， 作为16 QAM或64 QAM。 发射机与接收机共享软导频符号的调制类型和位置（时间/频率/码）。 与传统的固定飞行员不同，软飞行员仍然携带一些数据。 此外，软导频器在建立解调高阶调制符号时必不可少的幅度参考是特别有用的。 在另一个实施例中，通过信道编码比特的低级删截插入软导频符号，并用已知的比特模式替换被删余的比特。