公开(公告)号：US08437295B2

公开(公告)日：2013-05-07

申请号：US12740080

申请日：2008-10-30

申请人： Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

发明人： Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

IPC分类号： H04W72/04

CPC分类号： H04W74/006 ,  H04W74/0833 ,  H04W74/0866

摘要： The present invention relates to fast random access methods and arrangements for the enhanced uplink dedicated channel of E-UTRAN (Evolved Universal terrestrial radio access network). A user equipment (UE) being in a low activity state sends a random access request comprising a preamble on a physical random access channel (PRACH) to a NodeB. The NodeB receives the request and sends in response to the received random access request a response comprising information associated with detection of the preamble on an acquisition indicator channel (AICH). The response comprises further in an extension of the AICH an indication of an action to be taken by the UE. In an embodiment of the present invention the action is to access the E-DCH and the response comprises configuration parameters to the E-DCH.

摘要翻译： 本发明涉及用于E-UTRAN（演进通用陆地无线电接入网络）的增强型上行链路专用信道的快速随机接入方法和装置。 处于低活动状态的用户设备（UE）将物理随机接入信道（PRACH）上的前导码的随机接入请求发送到节点B。 节点B接收请求并响应于接收到的随机接入请求发送包括与获取指示符信道（AICH）上的前导码的检测相关联的信息的响应。 该响应在AICH的扩展中进一步包括UE要采取的动作的指示。 在本发明的一个实施例中，动作是访问E-DCH，响应包括对E-DCH的配置参数。

公开(公告)号：US20130028309A1

公开(公告)日：2013-01-31

申请号：US13194772

申请日：2011-07-29

申请人： Chester Park ,  Yi-Pin Eric Wang

发明人： Chester Park ,  Yi-Pin Eric Wang

IPC分类号： H04B17/00

CPC分类号： H04L1/0015 ,  H04B7/0473 ,  H04B17/336 ,  H04L1/20 ,  H04L25/03923 ,  H04L25/03929

摘要： Conventional mode adaptation does not account for the gain imbalance between channels for measurement and for data reception. Therefore, the precoder, which is selected based on the measurement channel, may not be the optimal precoder for the data reception channel. By maintaining relative SINR ordering between transmission modes, a receiver may select the transmission mode for a transmitter that maximizes the actual throughput even in the presence of inter-antenna gain increase or decrease.

摘要翻译： 常规模式适配不考虑用于测量和数据接收的通道之间的增益不平衡。 因此，基于测量信道选择的预编码器可能不是数据接收信道的最佳预编码器。 通过维持传输模式之间的相对SINR排序，接收机可以选择发射机的传输模式，即使在存在天线间增益增加或减小的情况下也能使实际吞吐量最大化。

公开(公告)号：US08271858B2

公开(公告)日：2012-09-18

申请号：US12553324

申请日：2009-09-03

申请人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

发明人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

IPC分类号： H03M13/00

CPC分类号： H04L1/005

摘要： Techniques for generating soft values for parity bits in a convolutional decoding process are disclosed. An exemplary method comprises, for each of at least one iteration in at least one soft-input soft-output decoder, calculating intermediate probability values for each possible transition between a first plurality of candidate decoder states at a first time and a second plurality of candidate decoder states at a second time. Two or more partial sums are then computed from the intermediate probability values, wherein the partial sums correspond to possible combinations of two or more systematic bits, two or more parity bits, or at least one systematic bit and at least one parity bit. Soft values, such as log-likelihood values, are then estimated for each of at least one systematic bit and at least one parity bit of the received communications data corresponding to the interval between the first and second times, based on the partial sums.

摘要翻译： 公开了在卷积解码过程中产生用于奇偶校验位的软值的技术。 一种示例性方法包括对于至少一个软输入软输出解码器中的至少一次迭代中的每一个，为第一时间的第一多个候选解码器状态和第二多个候选者之间的每个可能的转换计算中间概率值 解码器第二次状态。 然后从中间概率值计算两个或多个部分和，其中部分和对应于两个或多个系统位，两个或更多个奇偶校验位或至少一个系统位和至少一个奇偶校验位的可能组合。 然后，基于部分和，针对对应于第一和第二时间之间的间隔的接收到的通信数据的至少一个系统位和至少一个奇偶校验位中的每一个估计诸如对数似然值的软值。

公开(公告)号：US20110261872A1

公开(公告)日：2011-10-27

申请号：US12764247

申请日：2010-04-21

申请人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

发明人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

IPC分类号： H04B17/00

CPC分类号： H04L27/2647 ,  H04J11/004 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0025 ,  H04L5/0046 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2636

摘要： A receive signal processor jointly detects two or more symbols in a signal-of-interest in the presence of one or more other MIMO signals. The signal-to-interference-plus-noise ratio for each signal-of-interest is determined by computing per-subcarrier signal-to-interference-plus-noise ratios for a plurality of subcarriers allocated to the signals-of-interest, and computing a total signal-to-interference-plus-noise ratio for the subcarriers based on the per-subcarrier signal-to-interference-plus-noise ratios of the subcarriers. A controller determines one or more transmission formats for uplink transmissions based on the signal-to-interference-plus-noise ratios. The process of computing per-subcarrier signal-to-interference-plus-noise ratio reflects the amount of MIMO interference already cancelled or still remaining in the signal arriving at the joint detector.

摘要翻译： 接收信号处理器在存在一个或多个其它MIMO信号的情况下联合检测感兴趣的信号中的两个或多个符号。 通过对分配给感兴趣信号的多个子载波计算每副载波信号与干扰加噪声比来确定每个感兴趣信号的信号与干扰加噪声比，以及 基于子载波的每副载波信号与干扰加噪声比，计算子载波的总信噪比加噪声比。 控制器基于信号与干扰加噪声比确定用于上行链路传输的一种或多种传输格式。 计算每子载波信号与干扰加噪声比的过程反映已经消除或仍然存在于到达联合检测器的信号中的MIMO干扰量。

公开(公告)号：US20110243283A1

公开(公告)日：2011-10-06

申请号：US12752471

申请日：2010-04-01

申请人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

发明人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

IPC分类号： H04B1/10

CPC分类号： H04L27/2647 ,  H04B17/336 ,  H04L5/0046 ,  H04L5/0091 ,  H04L27/2636

摘要： A receive signal processor jointly detects a signal-of-interest with one or more other signals. The signal-to-interference-plus-noise ratio for the signal-of-interest is determined by computing per-subcarrier signal-to-interference-plus-noise ratios for a plurality of subcarriers carrying the signal-of-interest, computing per-subcarrier capacities for the subcarriers based on the per subcarrier signal to interference ratios, and computing a total signal-to-interference-plus-noise ratio for the subcarriers based on the per-subcarrier capacities of the subcarriers.

摘要翻译： 接收信号处理器通过一个或多个其它信号共同检测感兴趣的信号。 用于感兴趣信号的信号与干扰加噪声比通过计算携带感兴趣信号的多个子载波的每副载波信号与干扰加噪声比来确定 基于每个子载波信号与干扰比的子载波的子载波容量，以及基于子载波的每副载波容量计算副载波的总信噪比加噪声比。

公开(公告)号：US07924754B2

公开(公告)日：2011-04-12

申请号：US12502506

申请日：2009-07-14

申请人： Johan Bergman ,  Yi-Pin Eric Wang ,  Erik Larsson

发明人： Johan Bergman ,  Yi-Pin Eric Wang ,  Erik Larsson

IPC分类号： H04B7/00

CPC分类号： H04L1/0057 ,  H04L1/0073 ,  H04L1/1607 ,  H04L2001/125

摘要： Acknowledgment signaling in a multiple carrier environment is enabled with a multiple carrier codebook having code words that jointly encode acknowledgment for at least two carriers. For an example embodiment, there is a method in a remote terminal for acknowledgment uplink signaling in a multiple-carrier mode. First, a code word is determined that jointly encodes acknowledgment signaling for at least two carriers from a multiple carrier codebook that is stored in the remote terminal. The multiple carrier codebook includes eight code words that are defined to have a single carrier codebook as a sub-codebook of the multiple carrier codebook, each code word of the eight code words having a length of ten. The multiple carrier codebook achieves a minimum Hamming distance of four among the eight code words. Second, an uplink signaling message that includes the determined code word is transmitted from the remote terminal to a wireless network node.

摘要翻译： 具有多载波码本的多载波环境中的确认信令被启用，所述多载波码本具有对至少两个载波共同编码确认的码字。 对于示例实施例，在远程终端中存在用于多载波模式中的确认上行链路信令的方法。 首先，确定从存储在远程终端中的多载波码本共同编码至少两个载波的确认信令的码字。 多载波码本包括被定义为具有单个载波码本作为多载波码本的子码本的八个码字，八个码字的长度为十的每个码字。 多载波码本在八个码字中达到最小汉明距离四。 其次，将包含所确定的码字的上行链路信令消息从远程终端发送到无线网络节点。

公开(公告)号：US20110055667A1

公开(公告)日：2011-03-03

申请号：US12553324

申请日：2009-09-03

申请人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

发明人： Yi-Pin Eric Wang ,  Jung-Fu Cheng

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L1/005

摘要： Techniques for generating soft values for parity bits in a convolutional decoding process are disclosed. An exemplary method comprises, for each of at least one iteration in at least one soft-input soft-output decoder, calculating intermediate probability values for each possible transition between a first plurality of candidate decoder states at a first time and a second plurality of candidate decoder states at a second time. Two or more partial sums are then computed from the intermediate probability values, wherein the partial sums correspond to possible combinations of two or more systematic bits, two or more parity bits, or at least one systematic bit and at least one parity bit. Soft values, such as log-likelihood values, are then estimated for each of at least one systematic bit and at least one parity bit of the received communications data corresponding to the interval between the first and second times, based on the partial sums.

摘要翻译： 公开了在卷积解码过程中产生用于奇偶校验位的软值的技术。 一种示例性方法包括对于至少一个软输入软输出解码器中的至少一次迭代中的每一个，为第一时间的第一多个候选解码器状态和第二多个候选者之间的每个可能的转换计算中间概率值 解码器第二次状态。 然后从中间概率值计算两个或多个部分和，其中部分和对应于两个或多个系统位，两个或更多个奇偶校验位或至少一个系统位和至少一个奇偶校验位的可能组合。 然后，基于部分和，针对对应于第一和第二时间之间的间隔的接收到的通信数据的至少一个系统位和至少一个奇偶校验位中的每一个估计诸如对数似然值的软值。

公开(公告)号：US20070275665A1

公开(公告)日：2007-11-29

申请号：US11438921

申请日：2006-05-23

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

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

IPC分类号： H04B17/00 ,  H04B7/00

CPC分类号： H04L1/0019 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/20 ,  H04L25/0202 ,  H04L25/0222 ,  H04L27/2647

摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.

摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。

公开(公告)号：US20070165576A1

公开(公告)日：2007-07-19

申请号：US11275388

申请日：2005-12-29

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

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

IPC分类号： H04B7/216

CPC分类号： H04B7/0691 ,  H04B7/0413 ,  H04J13/0003

摘要： A control channel for MIMO users operating in conjunction with an HS-DSCH system shares channelization codes with an HS-SCCH control channel. MIMO control channel information can be signaled from a transmit antenna selected based on information produced by the intended recipient. The modulation format used by a MIMO control channel can be selected based on the number of antenna streams in the corresponding MIMO data transmission.

摘要翻译： 与HS-DSCH系统结合操作的MIMO用户的控制信道与HS-SCCH控制信道共享信道化码。 MIMO控制信道信息可以从根据预期接收者产生的信息选择的发射天线发出信号。 可以基于在相应的MIMO数据传输中的天线流的数量来选择由MIMO控制信道使用的调制格式。

公开(公告)号：US06975672B2

公开(公告)日：2005-12-13

申请号：US09756504

申请日：2001-01-08

申请人： Gregory Edward Bottomley ,  Tony Ottosson ,  Yi-Pin Eric Wang

发明人： Gregory Edward Bottomley ,  Tony Ottosson ,  Yi-Pin Eric Wang

IPC分类号： H04L25/03 ,  H04B1/69

CPC分类号： H04L25/03305 ,  H04B2201/709727 ,  H04L25/03299

摘要： A communications signal representing symbols encoded according to respective portions of a spreading sequence is decoded. Time-offset correlations of the communications signal with the spreading sequence are generated. The time-offset correlations are combined to generate first estimates for the symbols. Intersymbol interference factors that include a relationship among different portions of the spreading sequence are determined, and a second estimate for one of the symbols is generated from the first estimates based on the determined intersymbol interference factors. An intersymbol interference factor may include a relationship between a first portion of the spreading sequence associated with the one symbol to a second portion of the spreading sequence associated with another symbol and may be determined, for example, from the spreading sequence and a channel estimate for a channel over which the communications signal is communicated. The invention may be embodied as methods and apparatus, for example, as a receiver included in a communications apparatus, such as a wireless terminal, wireless base station, or other wireless, wireline or optical communications apparatus.

摘要翻译： 表示根据扩展序列的各个部分编码的符号的通信信号被解码。 产生通信信号与扩展序列的时间偏移相关。 时间偏移相关被组合以产生符号的第一估计。 确定包括扩展序列的不同部分之间的关​​系的符号间干扰因子，并且基于确定的符号间干扰因子从第一估计生成符号之一的第二估计。 符号间干扰因子可以包括与一个符号相关联的扩展序列的第一部分与与另一符号相关联的扩展序列的第二部分之间的关​​系，并且可以例如从扩展序列和用于 通信信号通过该信道。 本发明可以被实现为例如作为诸如无线终端，无线基站或其他无线，有线或光通信设备的通信设备中包括的接收机的方法和装置。