公开(公告)号：US06275538B1

公开(公告)日：2001-08-14

申请号：US09041115

申请日：1998-03-11

申请人： Rajaram Ramesh ,  Havish Koorapaty ,  Yi-Pin Wang

发明人： Rajaram Ramesh ,  Havish Koorapaty ,  Yi-Pin Wang

IPC分类号： H04L512

CPC分类号： H03M13/235 ,  H03M13/4123 ,  H03M13/413

摘要： A convolutional feedback encoder uses a shift type shift register with both feed-forward and feedback circuit structures to process and encode a fixed length information sequence. The encoder is configured, through careful selection of the feedback coefficients, so as to achieve a tail-biting mode of operation. Tail-biting means that the state of the encoder prior to the input of the first uncoded data bit is the same as the state of the encoder upon input of the last uncoded data bit. The starting state of the encoder is found by linearly combining data bits in the information sequence. The linear combinations are determined by a selection matrix or selection vector which is derived from the feedback coefficients of the encoder.

摘要翻译： 卷积反馈编码器使用具有前馈和反馈电路结构的移位类型移位寄存器来处理和编码固定长度的信息序列。 通过仔细选择反馈系数来配置编码器，以实现尾巴操作模式。 尾咬意味着在输入第一未编码数据位之前编码器的状态与输入最后一个未编码数据位时编码器的状态相同。 编码器的起始状态通过线性组合信息序列中的数据位来发现。 线性组合由从编码器的反馈系数导出的选择矩阵或选择矢量确定。

公开(公告)号：US20080086669A1

公开(公告)日：2008-04-10

申请号：US11905173

申请日：2007-09-27

申请人： Jung-fu Cheng ,  Bo Goransson ,  Stefan Parkvall ,  Yi-Pin Wang

发明人： Jung-fu Cheng ,  Bo Goransson ,  Stefan Parkvall ,  Yi-Pin Wang

IPC分类号： H04L1/18 ,  G06F11/16

CPC分类号： H04L1/1607 ,  H04L1/004 ,  H04L1/0073 ,  H04L1/1812 ,  H04L2001/125

摘要： Error protection based on a nonlinear code set may be used in a multiple input multiple output (MIMO) radio communications system. A decoder decodes received MIMO data streams and generates an automatic repeat request (ARQ) message for data units received for the MIMO data streams for each transmission time interval. An encoder codes the ARQ message using a code word from a nonlinear code set. At the data transmitter, which transmits one or more data units in transmission time intervals from two or more MIMO data streams, the ARQ message associated with the transmitted data units is decoded using a code word from the nonlinear code set.

摘要翻译： 可以在多输入多输出（MIMO）无线电通信系统中使用基于非线性码集的错误保护。 解码器解码所接收的MIMO数据流，并为每个传输时间间隔为MIMO数据流接收的数据单元生成自动重复请求（ARQ）消息。 编码器使用来自非线性码集的码字对ARQ消息进行编码。 在从两个或多个MIMO数据流以传输时间间隔发送一个或多个数据单元的数据发射机处，使用来自非线性码集的码字来解码与发送的数据单元相关联的ARQ消息。

公开(公告)号：US20070242652A1

公开(公告)日：2007-10-18

申请号：US11575121

申请日：2005-09-07

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

发明人： Erik Dahlman ,  Eva Englund ,  Jung-Fu Cheng ,  Yi-Pin 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：US20060098679A1

公开(公告)日：2006-05-11

申请号：US11266522

申请日：2005-11-03

申请人： Jung-Fu Cheng ,  Dirk Gerstenberger ,  Stefan Parkvall ,  Andres Reial ,  Yi-Pin Wang

发明人： Jung-Fu Cheng ,  Dirk Gerstenberger ,  Stefan Parkvall ,  Andres Reial ,  Yi-Pin Wang

IPC分类号： H04B7/216

CPC分类号： H04J13/0044 ,  H04B2201/70706 ,  H04B2201/709727 ,  H04J13/00 ,  H04J13/18

摘要： A method and apparatus that reduces the likelihood of having a high peak power in any one bit position of code multiplexed downlink control channel symbols is described herein. An exemplary method includes selecting a different bit-level spreading sequence for each mobile terminal from a set of orthogonal bit-level spreading sequences, where code values in any one bit position are not the same for all of the bit-level spreading sequences in the set. When a code multiplexing system uses the selected bit-level spreading sequences from the sequence set to code multiplex the downlink control channel symbols, the resulting combined signal has a lower likelihood of having a high peak power.

摘要翻译： 这里描述了减少在码多路复用的下行链路控制信道符号的任何一个比特位置具有高峰值功率的可能性的方法和装置。 一种示例性方法包括从一组正交位电平扩展序列中为每个移动终端选择不同的位电平扩展序列，其中任何一个位位置中的码值对于所有位级扩展序列中的所有位级扩展序列都不相同 组。 当码复用系统使用来自序列集合的所选位级扩展序列对下行链路控制信道符号进行码复用时，所得到的组合信号具有较高的峰值功率的可能性。

公开(公告)号：US20050195889A1

公开(公告)日：2005-09-08

申请号：US10795101

申请日：2004-03-05

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

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

IPC分类号： H04B1/707 ,  H04J99/00

CPC分类号： H04B1/707 ,  H04B2201/709727

摘要： A receiver includes a receiver circuit that decodes multiple signals of interest contained in a composite received signal. The receiver comprises a plurality of successive signal detection stages to detect respective signals contained in the composite received signal. Each detection circuit comprises at least one Generalized RAKE combining circuit and generates a detected signal at an output. Each but the last stage further comprises a signal regeneration circuit that cancels the signal of interest detected by that stage from a stage input signal provided to the next stage such that successive detection of the signals of interest benefits from cumulative cancellation of the previously detected signals.

摘要翻译： 接收机包括对包含在复合接收信号中的感兴趣的多个信号进行解码的接收机电路。 接收机包括多个连续的信号检测级，以检测包含在复合接收信号中的各个信号。 每个检测电路包括至少一个通用RAKE组合电路，并在输出端产生检测信号。 除了最后阶段之外，每个除了最后阶段还包括信号再生电路，该信号再生电路从提供给下一级的级输入信号中消除由该级检测到的感兴趣的信号，使得感兴趣的信号的连续检测从先前检测到的信号的累积消除中获益。

公开(公告)号：US20050181739A1

公开(公告)日：2005-08-18

申请号：US11045877

申请日：2005-01-28

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

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

IPC分类号： H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04B1/00 ,  H03C7/02 ,  H04B1/02 ,  H04B7/00 ,  H04B7/02 ,  H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04B7/0686 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/065 ,  H04B7/0689 ,  H04B7/0691 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/003 ,  H04L1/06

摘要： An adaptive transmission scheme provides multiple levels of adaptation. At a first level, a selection is made between a limited feedback or open loop scheme and a rich feedback or closed loop scheme. At a second level of adaptation, a diversity mode is selected. Additional levels of adaptation could be employed.

摘要翻译： 自适应传输方案提供多级适配。 在第一级，在有限反馈或开环方案和丰富的反馈或闭环方案之间进行选择。 在第二级适配时，选择分集模式。 可以采用额外的适应水平。

公开(公告)号：US20100103983A1

公开(公告)日：2010-04-29

申请号：US12260641

申请日：2008-10-29

申请人： Yi-Pin Wang ,  Gregory E. Bottomley

发明人： Yi-Pin Wang ,  Gregory E. Bottomley

IPC分类号： H04B1/707

CPC分类号： H04J13/20 ,  H04B1/7105

摘要： A base station is described herein that uses a root spreading code based code assignment to transmit signals to a mobile station. The mobile station can then suppress intra-block interference by effectively using a joint detection technique or a non-linear equalization technique to detect the transmitted symbols.

摘要翻译： 本文描述了使用基于根扩展码的代码分配来向移动台发送信号的基站。 移动台然后可以通过有效地使用联合检测技术或非线性均衡技术来检测所发送的符号来抑制块内干扰。

公开(公告)号：US07599698B2

公开(公告)日：2009-10-06

申请号：US10747752

申请日：2003-12-29

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

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

IPC分类号： H04W72/00

CPC分类号： H04W8/24 ,  H04W24/00

摘要： A method of supplying channel information in a wireless communication system comprises a mobile terminal normally providing a basic channel report to the wireless communication system; the mobile terminal receiving at least one common feedback criterion broadcast to a plurality of mobile terminals; the mobile terminal determining if the mobile terminal satisfies a condition based on the at least one common feedback criterion; and the mobile terminal selectively providing an enhanced channel report to the wireless communication system based on the determining. The basic channel report may comprise information related to a first set of channel parameters, and the enhanced channel report may provide greater detail on the first set of channel parameters and/or relate to a second set of channel parameters. A method of a base station adaptively controlling channel information reporting by broadcast transmitting at least one common feedback criterion is also presented.

摘要翻译： 一种在无线通信系统中提供频道信息的方法包括通常向无线通信系统提供基本频道报告的移动终端; 所述移动终端接收向多个移动终端广播的至少一个公共反馈准则; 所述移动终端基于所述至少一个公共反馈标准来确定所述移动终端是否满足条件; 并且所述移动终端基于所述确定选择性地向所述无线通信系统提供增强的信道报告。 基本信道报告可以包括与第一组信道参数相关的信息，并且增强信道报告可以提供关于第一组信道参数的更多细节和/或涉及第二组信道参数。 还提出了一种通过广播发送至少一个公共反馈标准自适应地控制信道信息报告的基站的方法。

公开(公告)号：US07389099B2

公开(公告)日：2008-06-17

申请号：US11112578

申请日：2005-04-22

申请人： Carmela Cozzo ,  Yi-Pin Wang ,  Håkan B Eriksson ,  Gregory E. Bottomley ,  Ali S. Khayrallah

发明人： Carmela Cozzo ,  Yi-Pin Wang ,  Håkan B Eriksson ,  Gregory E. Bottomley ,  Ali S. Khayrallah

IPC分类号： H04B1/18

CPC分类号： H04B1/7107 ,  H04B2201/709727

摘要： A method and apparatus in a radio receiver for canceling interference from a high power, high data rate signal received in a combined signal that includes a contribution from the high power signal and a contribution from a lower power signal. It is first determined whether the high power signal was correctly received. A CRC checksum may be used to determine whether the high power signal was received with a good reliability. Thereafter, the contribution of the high power signal is removed from the received signal only if the high power signal was correctly received. The contribution of the high power signal may be removed by hard-subtracting the contribution of the high power signal from the received signal if all of the bits of the checksum are correct, and soft-subtracting the contribution of the high power signal from the received signal if most, but not all, of the bits in the checksum are correct.

摘要翻译： 一种无线电接收机中的方法和装置，用于消除在包括来自高功率信号的贡献和来自低功率信号的贡献的组合信号中接收的高功率，高数据速率信号的干扰。 首先确定高功率信号是否正确接收。 可以使用CRC校验和来确定高功率信号是否以良好的可靠性被接收。 此后，仅当正确接收到高功率信号时，才从接收信号中去除高功率信号的贡献。 如果校验和的所有比特都正确，则可以通过从接收到的信号中硬减去高功率信号的贡献来消除高功率信号的贡献，并且从所接收到的功率信号中减去高功率信号的贡献 信号，如果校验和中的大多数但不是全部的位是正确的。

公开(公告)号：US20060245476A1

公开(公告)日：2006-11-02

申请号：US11115491

申请日：2005-04-27

申请人： Yi-Pin Wang ,  Jung-Fu Cheng

发明人： Yi-Pin Wang ,  Jung-Fu Cheng

IPC分类号： H04B1/707

CPC分类号： H04J13/20 ,  H04B1/7105 ,  H04B1/71052 ,  H04B1/71055 ,  H04B1/71072 ,  H04J13/0044 ,  H04L25/03305

摘要： A joint detector that improves the performance of receiving a downlink control channel signal for a near-end mobile terminal in the presence of a stronger control channel signal addressed to a far-end mobile terminal sharing the same OVSF, or channelization, code through the use of orthogonal signature sequences. Depending on the specific embodiment, the joint detector may produce the desired bits for the control signal of interest, or may produce detected bits for all control signals sharing the same OVSF code. The joint detector despreads and combines the received code-multiplexed signal, utilizing knowledge of the cross correlations of the set of signature sequences and time-varying channel coefficients to alleviate performance degradation caused by interference from other signals. In various embodiments, the joint detector may be implemented as a modified decorrelating detector, a modified MMSE detector, a modified LS estimator detector, a successive interference-canceling detector, or a jointly hypothesized detector.

摘要翻译： 一种联合检测器，其在存在针对共享相同OVSF的远端移动终端的更强控制信道信号或通过使用的信道化代码的情况下，改善了对于近端移动终端接收下行链路控制信道信号的性能 的正交特征序列。 根据具体实施例，联合检测器可以产生用于感兴趣的控制信号的期望比特，或者可以产生用于共享相同OVSF码的所有控制信号的检测比特。 联合检测器利用所述签名序列集合和时变信道系数的互相关的知识来对接收的码复用信号进行解扩和合并，以减轻由其他信号的干扰引起的性能下降。 在各种实施例中，联合检测器可以被实现为修改的去相关检测器，修改的MMSE检测器，修改的LS估计器检测器，连续的干扰消除检测器或联合假设的检测器。