公开(公告)号：US20130077720A1

公开(公告)日：2013-03-28

申请号：US13402297

申请日：2012-02-22

Applicant: Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson ,  Michael Samuel Bebawy

Inventor： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson ,  Michael Samuel Bebawy

IPC: H04B1/10

CPC classification number: H04W72/1278 ,  H04B1/71075 ,  H04B1/712 ,  H04W72/082

Abstract: In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. The receiver performs code-averaged equalization and chip chip-level code-specific interference over-cancellation on the received signals. This can result in a unified interference cancellation processing, and can avoid cumbersome calculations of code cross correlations that is required in symbol-level interference cancellation. A symbol-level code-averaged desired signal add-back is performed to address the over-cancellation of some desired signals.

Abstract translation: 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 接收机对接收到的信号执行代码平均均衡和芯片级代码特定的干扰过度消除。 这可以导致统一的干扰消除处理，并且可以避免在符号级干扰消除中所需的代码互相关的繁琐计算。 执行符号级代码平均期望信号加法来解决某些期望信号的过度消除。

公开(公告)号：US20130077670A1

公开(公告)日：2013-03-28

申请号：US13333478

申请日：2011-12-21

Applicant: Yi-Pin Eric Wang ,  Cagatay Konuskan ,  Gregory Bottomley ,  Jung-Fu Cheng ,  Niklas Johansson ,  Ning He ,  Stephen Grant

Inventor： Yi-Pin Eric Wang ,  Cagatay Konuskan ,  Gregory Bottomley ,  Jung-Fu Cheng ,  Niklas Johansson ,  Ning He ,  Stephen Grant

IPC: H04B1/10 ,  H04L27/01

CPC classification number: H04W72/1278 ,  H04B1/71075 ,  H04B1/712 ,  H04W72/082

Abstract: In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive strategy is used in which after each stage of interference cancellation, impairment covariance is parametrically updated and combining weights of the receiver are adapted to reflect the updated impairment covariance.

Abstract translation: 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应策略，其中在干扰消除的每个阶段之后，对损伤协方差进行参数更新，并且接收机的组合权重被适配以反映更新的损害协方差。

公开(公告)号：US08401585B2

公开(公告)日：2013-03-19

申请号：US12553333

申请日：2009-09-03

Applicant: Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Stephen Grant ,  Mikael Höök

Inventor： Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Stephen Grant ,  Mikael Höök

IPC: H04B7/00

CPC classification number: H04W52/08 ,  H04W52/146 ,  H04W52/20 ,  H04W52/245 ,  H04W52/265 ,  H04W52/267 ,  H04W52/286 ,  H04W52/325

Abstract: A method and apparatus provide advantageous uplink power control for a set of uplink channels transmitted by a mobile terminal or other item of user equipment (UE). The proposed uplink power control maintains the total received power for the set of uplink channels at or about a target received power, while also maintaining the received signal quality for a subset of those channels—e.g., a particular one of them—at or about a target received signal quality. In an advantageous but non-limiting example embodiment, the subset comprises a fixed-rate control channel, and the set includes that control channel and a variable-rate traffic channel. Correspondingly, a base station generates first power control commands to maintain the received signal quality of the control channel at or about some quality target, and generates second power control commands to maintain the total received power (of the two channels) at or about some power target.

Abstract translation: 一种方法和装置为由移动终端或其他用户设备（UE）发送的一组上行链路信道提供有利的上行链路功率控制。 所提出的上行链路功率控制在目标接收功率处或者关于目标接收功率的情况下保持用于该组上行链路信道的总接收功率，同时还保持这些信道的子集的接收信号质量 - 例如其中的特定的 - 目标接收信号质量。 在有利但非限制性的示例实施例中，该子集包括固定速率控制信道，并且该集合包括该控制信道和可变速率业务信道。 相应地，基站产生第一功率控制命令，以将控制信道的接收信号质量维持在某个质量目标处或附近，并且产生第二功率控制命令以将两个信道的总接收功率维持在或大约一些功率 目标。

公开(公告)号：US08396168B2

公开(公告)日：2013-03-12

申请号：US12760839

申请日：2010-04-15

Applicant: Ali S. Khayrallah ,  Chester Park ,  Yi-Pin Eric Wang

Inventor： Ali S. Khayrallah ,  Chester Park ,  Yi-Pin Eric Wang

IPC: H04L27/00

CPC classification number: H04L27/38 ,  H04L25/0242 ,  H04L25/03229 ,  H04L27/3416 ,  H04L2025/03388 ,  H04L2025/03414

Abstract: In a receiver with a multi-stage equalizer, such as an SLI equalizer, cumulative symbol estimates generated in one or more early stages of the equalizer are used as effective pilot symbols to improve channel estimation for later stages.

Abstract translation: 在具有多级均衡器（诸如SLI均衡器）的接收机中，在均衡器的一个或多个早期阶段中生成的累积符号估计值被用作有效的导频符号，以改进稍后阶段的信道估计。

公开(公告)号：US20120300829A1

公开(公告)日：2012-11-29

申请号：US13117583

申请日：2011-05-27

Applicant: Yi-Pin Eric Wang ,  Tore Mikael Andrë ,  Jinliang Huang

Inventor： Yi-Pin Eric Wang ,  Tore Mikael Andrë ,  Jinliang Huang

IPC: H04L27/01

CPC classification number: H04L25/03171 ,  H04L25/03012 ,  H04L2025/03726

Abstract: At a node of a wireless network, equalization operations performed on signals received from a transmitter are adaptively switched to be equalized by an iterative turbo receiver or a linear receiver. A theoretical expression of a post-equalization SINR of a capacity-achieving receiver is used to estimate the post-equalization SINR performance of the turbo receiver. The estimated post-equalization SINR performance is then used as a basis to determine whether the received signal is to be equalized by the turbo receiver or the linear receiver.

Abstract translation: 在无线网络的节点处，对从发射机接收的信号执行的均衡操作被自适应地切换以由迭代turbo接收机或线性接收机进行均衡。 使用容量实现接收机的后均衡SINR的理论表达式来估计turbo接收机的均衡后SINR性能。 然后，将估计的均衡后SINR性能用作基础，以确定接收到的信号是否被turbo接收机或线性接收机均衡。

公开(公告)号：US20120198299A1

公开(公告)日：2012-08-02

申请号：US13443039

申请日：2012-04-10

Applicant: Jung-fu Thomas CHENG ,  Bo Göransson ,  Stefan Parkvall ,  Yi-Pin Eric Wang

Inventor： Jung-fu Thomas CHENG ,  Bo Göransson ,  Stefan Parkvall ,  Yi-Pin Eric Wang

IPC: H04L1/18 ,  G06F11/14

CPC classification number: H04L1/1607 ,  H04L1/004 ,  H04L1/0073 ,  H04L1/1812 ,  H04L2001/125

Abstract: 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.

Abstract translation: 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：US20120051466A1

公开(公告)日：2012-03-01

申请号：US13050433

申请日：2011-03-17

Applicant: Yi-Pin Eric WANG ,  Gregory E. Bottomley

Inventor： Yi-Pin Eric WANG ,  Gregory E. Bottomley

IPC: H04L27/06

CPC classification number: H04L25/08 ,  H04L25/03012 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03184 ,  H04L25/03312 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A receiver comprises plural receive antennas and electronic circuitry. The plural receive antennas are configured to receive, on plural subcarriers transmitted over a radio interface, a frequency domain signal that comprises contribution from a block of time domain symbols. The electronic circuitry is configured or operable to perform symbol detection of time domain symbols comprising the block by performing a multi-stage joint detection procedure comprising plural stages, and thus serves as a detector (40). For a first stage the block is divided into a first number of sub-blocks each having a sub-block first size. For a second stage the block is divided into a second number of sub-blocks each having a sub-block second size, the sub-block second size being greater than the sub-block first size. For each stage a detector (40) formulates frequency domain combining weights and uses the frequency domain combining weights for combining multiple receive versions of each subcarrier to provide candidate symbol combination values for symbols in each sub-block of the respective stage. For the second stage the detector (40) is further configured to use the candidate symbol combination values of the first stage to formulate joint hypotheses to serve as candidates for the joint detection operation of the second stage.

Abstract translation: 接收机包括多个接收天线和电子电路。 多个接收天线被配置为在由无线电接口发送的多个子载波上接收包括来自时域符号块的贡献的频域信号。 电子电路被配置或可操作以通过执行包括多个级的多级联合检测过程来执行包括该块的时域符号的符号检测，从而用作检测器（40）。 对于第一阶段，块被分成具有子块第一大小的第一数量的子块。 对于第二级，块被分成第二数量的子块，每个子块具有子块的第二尺寸，子块的第二尺寸大于子块的第一尺寸。 对于每个阶段，检测器（40）制定频域组合权重并使用频域组合权重来组合每个子载波的多个接收版本，以为相应级的每个子块中的符号提供候选符号组合值。 对于第二级，检测器（40）还被配置为使用第一级的候选符号组合值来形成联合假设以用作第二级的联合检测操作的候选。

公开(公告)号：US07916681B2

公开(公告)日：2011-03-29

申请号：US11296560

申请日：2005-12-07

Applicant: Lennart Andersson ,  Yi-Pin Eric Wang ,  Gregory E Bottomley

Inventor： Lennart Andersson ,  Yi-Pin Eric Wang ,  Gregory E Bottomley

IPC: H04B7/185

CPC classification number: H04W52/56 ,  H04B17/336 ,  H04B2201/709727 ,  H04W52/12

Abstract: A wireless communication device or system generates transmit power control feedback for a received power control channel by determining a command error rate (CER), or by identifying a target signal quality for the power control channel according to a defined signal-quality-to-CER mapping function. Generally, the power control channel does not include error-coded data to use for CER estimation. However, in one embodiment, the channel does include known reference bits that are evaluated for CER estimation, with the estimated CER used to set the signal quality target for inner loop power control. In other embodiments, a computed reception error probability is used to identify a CER estimate according to a defined probability-to-CER mapping function. By way of non-limiting example, these embodiments may be used to provide power control feedback for power control commands transmitted on a Fractional Dedicated Physical Channel in WCDMA systems.

Abstract translation: 无线通信设备或系统通过确定命令错误率（CER）或者通过根据定义的信号质量到CER来识别功率控制信道的目标信号质量来为接收到的功率控制信道生成发射功率控制反馈 映射功能。 通常，功率控制信道不包括用于CER估计的错误编码数据。 然而，在一个实施例中，信道确实包括对CER估计进行评估的已知参考比特，其中估计的CER用于设置用于内环功率控制的信号质量目标。 在其他实施例中，使用计算的接收错误概率来根据所定义的概率到CER映射函数来识别CER估计。 作为非限制性示例，这些实施例可以用于为在WCDMA系统中的分数专用物理信道上发送的功率控制命令提供功率控制反馈。

公开(公告)号：US20110053631A1

公开(公告)日：2011-03-03

申请号：US12553333

申请日：2009-09-03

Applicant: Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Stephen Grant ,  Mikael Hook

Inventor： Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Stephen Grant ,  Mikael Hook

IPC: H04B7/00 ,  H04M1/00

CPC classification number: H04W52/08 ,  H04W52/146 ,  H04W52/20 ,  H04W52/245 ,  H04W52/265 ,  H04W52/267 ,  H04W52/286 ,  H04W52/325

Abstract: A method and apparatus provide advantageous uplink power control for a set of uplink channels transmitted by a mobile terminal or other item of user equipment (UE). The proposed uplink power control maintains the total received power for the set of uplink channels at or about a target received power, while also maintaining the received signal quality for a subset of those channels—e.g., a particular one of them—at or about a target received signal quality. In an advantageous but non-limiting example embodiment, the subset comprises a fixed-rate control channel, and the set includes that control channel and a variable-rate traffic channel. Correspondingly, a base station generates first power control commands to maintain the received signal quality of the control channel at or about some quality target, and generates second power control commands to maintain the total received power (of the two channels) at or about some power target.

Abstract translation: 一种方法和装置为由移动终端或其他用户设备（UE）发送的一组上行链路信道提供有利的上行链路功率控制。 所提出的上行链路功率控制在目标接收功率处或者关于目标接收功率的情况下保持用于该组上行链路信道的总接收功率，同时还保持这些信道的子集的接收信号质量 - 例如其中的特定的 - 目标接收信号质量。 在有利但非限制性的示例实施例中，该子集包括固定速率控制信道，并且该集合包括该控制信道和可变速率业务信道。 相应地，基站产生第一功率控制命令，以将控制信道的接收信号质量维持在某个质量目标处或附近，并且产生第二功率控制命令以将两个信道的总接收功率维持在或大约一些功率 目标。

公开(公告)号：US20100260231A1

公开(公告)日：2010-10-14

申请号：US12421059

申请日：2009-04-09

Applicant: Markus Ringstom ,  Par Moqvist ,  Yi-Pin Eric Wang

Inventor： Markus Ringstom ,  Par Moqvist ,  Yi-Pin Eric Wang

IPC: H04B1/69

CPC classification number: H04B1/7103 ,  H04B2201/70705 ,  H04B2201/70707 ,  H04W24/00

Abstract: The transport format (TF) of a signal may be blindly detected from a reduced set of TF hypotheses. In an example embodiment, a method for the blind detection of a TF of a signal includes filtering a set of transport format hypotheses to identify a reduced set of TF hypotheses using one or more filtering schemes. From the reduced set of TF hypotheses, a TF that is associated with an interfering signal is detected. The TF includes a modulation and a spreading factor for the interfering signal. It may also include a number of channelization codes. In an example implementation, when an interfering signal is to be canceled, symbols carried by the signal are detected using the detected TF. Example filtering schemes include filtering based on system design/operation, filtering based on known configuration information, filtering based on an expected level of interference contribution, and so forth.

Abstract translation: 信号的传输格式（TF）可以从减少的一组TF假设中盲目地检测出来。 在示例实施例中，用于盲检测信号的TF的方法包括：使用一个或多个过滤方案来过滤一组传输格式假设以识别减少的TF假设集合。 从减少的TF假设集合中，检测到与干扰信号相关联的TF。 TF包括用于干扰信号的调制和扩频因子。 它还可以包括多个信道化码。 在示例实现中，当要消除干扰信号时，使用检测到的TF检测由信号携带的符号。 示例性过滤方案包括基于系统设计/操作的过滤，基于已知配置信息的过滤，基于预期干扰贡献水平的过滤等等。