公开(公告)号：US08923424B2

公开(公告)日：2014-12-30

申请号：US12711128

申请日：2010-02-23

申请人： Michael L. McCloud ,  Matthias Brehler ,  Ju Won Park ,  Jong Hyeon Park ,  Je Woo Kim ,  Inyup Kang ,  Brian C. Banister

发明人： Michael L. McCloud ,  Matthias Brehler ,  Ju Won Park ,  Jong Hyeon Park ,  Je Woo Kim ,  Inyup Kang ,  Brian C. Banister

IPC分类号： H04B7/02 ,  H04L25/03 ,  H04B7/04

CPC分类号： H04L25/03229 ,  H04B7/0413 ,  H04L25/03242 ,  H04L25/03318 ,  H04L2025/0342 ,  H04L2025/03426

摘要： Providing for reduced complexity or improved accuracy in de-mapping received wireless data streams for multi-channel wireless communication is described herein. By way of example, a low-complexity likelihood algorithm can be employed to de-map data bits from the wireless data streams. In one particular example, the likelihood algorithm can approximate a received bit with a subset of received wireless symbols correlated the bit, reducing algorithm complexity. In other examples, a limited set of received wireless symbols can be employed for the subset, further reducing algorithm complexity. According to at least one other example, logarithmic terms of the algorithm can be approximated with non-logarithmic functions, such as a look-up table, series expansion, polynomial approximation, or the like. These approximations can enhance symbol de-mapping accuracy while maintaining or improving processing overhead for a wireless receiver.

摘要翻译： 本文描述了为了解复用用于多信道无线通信的接收的无线数据流而提供降低的复杂度或提高的精度。 作为示例，可以采用低复杂度似然算法来从无线数据流解映射数据比特。 在一个特定示例中，似然算法可以用接收到的无线符号的子集近似接收到的比特，从而降低算法的复杂度。 在其他示例中，可以对该子集采用有限的一组接收到的无线符号，进一步降低了算法的复杂度。 根据至少另一个示例，算法的对数项可以用非对数函数来近似，例如查找表，串联展开，多项式近似等。 这些近似可以增强符号解映射精度，同时保持或改善无线接收机的处理开销。

公开(公告)号：US08831530B2

公开(公告)日：2014-09-09

申请号：US13460498

申请日：2012-04-30

申请人： Hongbing Cheng ,  Soobok Yeo ,  Kwangman Ok ,  Inyup Kang

发明人： Hongbing Cheng ,  Soobok Yeo ,  Kwangman Ok ,  Inyup Kang

IPC分类号： H04B17/00

CPC分类号： H04B17/318 ,  H04B17/345

摘要： A method of operation of a communication system includes: calculating a total received power estimation based on a designated received signal having a designated pilot symbol; calculating an instantaneous channel estimation based on the designated pilot symbol calculating a channel gain power estimation based on the instantaneous channel estimation; calculating a total interference power estimation based on a difference between the instantaneous channel estimation and a delayed channel estimation; calculating a designated received power based on a difference between the total received power estimation and the total interference power estimation; and determining a relative transmission power estimation based on the designated received power and the channel gain power estimation for communicating with a device.

摘要翻译： 一种通信系统的操作方法，包括：基于具有指定导频符号的指定接收信号，计算总接收功率估计; 基于所述指定的导频符号计算基于所述瞬时信道估计的信道增益功率估计的瞬时信道估计; 基于瞬时信道估计和延迟信道估计之间的差计算总干扰功率估计; 基于总接收功率估计与总干扰功率估计之间的差来计算指定接收功率; 以及基于所指定的接收功率和所述信道增益功率估计来确定与设备通信的相对发射功率估计。

公开(公告)号：US20130336430A1

公开(公告)日：2013-12-19

申请号：US13523824

申请日：2012-06-14

申请人： Chun Kin Au Yeung ,  Hanju Kim ,  Jungwon Lee ,  Inyup Kang

发明人： Chun Kin Au Yeung ,  Hanju Kim ,  Jungwon Lee ,  Inyup Kang

IPC分类号： H04L27/00 ,  H03M13/09

CPC分类号： H04L25/03171 ,  H03M13/09 ,  H03M13/2957 ,  H03M13/2966 ,  H03M13/3723 ,  H03M13/3746 ,  H03M13/3753 ,  H03M13/6306 ,  H03M13/6331 ,  H03M13/6525 ,  H03M13/658 ,  H04L1/005 ,  H04L1/1829 ,  H04L25/03891

摘要： A method of operation of a communication system includes: retaining an a-posteriori detector-data, a detector-extrinsic-information, an a-posteriori-decoder-data, a decoder-extrinsic-value, or a combination thereof calculated from a received signal; determining an a-priori-decoder-information or an a-priori detector-information from the a-posteriori detector-data, the detector-extrinsic-information, the a-posteriori-decoder-data, the decoder-extrinsic-value, or a combination thereof; and adjusting the a-posteriori detector-data, the detector-extrinsic-information, the a-posteriori-decoder-data, the decoder-extrinsic-value, or a combination thereof using the a-priori-decoder-information or the a-priori detector-information for communicating through a device.

摘要翻译： 一种通信系统的操作方法包括：从接收到的数据，保存一个后验检测器数据，一个检测器 - 外在信息，一个后验解码器数据，一个解码器 - 非本征值或其组合 信号; 从后验检测器数据，检测器外在信息，后验解码器数据，解码器外在值或者解码器外在信号中确定先验解码器信息或先验检测器信息 其组合; 以及使用先验解码器信息或者a-before-解码器信息调整后验检测器数据，检测器外在信息，后验解码器数据，解码器外在值或其组合， 用于通过设备进行通信的先验检测器信息。

公开(公告)号：US20130156139A1

公开(公告)日：2013-06-20

申请号：US13560330

申请日：2012-07-27

申请人： Jungwon Lee ,  Hyukjoon Kwon ,  Inyup Kang

发明人： Jungwon Lee ,  Hyukjoon Kwon ,  Inyup Kang

IPC分类号： H04B1/10

CPC分类号： H04W28/18 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0054

摘要： A method of operation of a wireless communication system includes: receiving a desired input signal and an interference input signal; activating a first symbol detector for generating a desired log-likelihood ratio from the desired input signal; activating a second symbol detector for generating an interference log-likelihood ratio from the interference input signal; and jointly decoding a decoded bit by iteratively refining the interference log-likelihood ratio for negating the interference input signal and iteratively refining the desired log-likelihood ratio for enhancing the desired input signal.

摘要翻译： 无线通信系统的操作方法包括：接收期望的输入信号和干扰输入信号; 激活第一符号检测器，用于从期望的输入信号产生所需的对数似然比; 激活第二符号检测器，用于从所述干扰输入信号产生干扰对数似然比; 并且通过迭代地改善干扰对数似然比来否定干扰输入信号并迭代地提炼期望的对数似然比以增强期望的输入信号来联合解码解码比特。

公开(公告)号：US08099072B2

公开(公告)日：2012-01-17

申请号：US11562393

申请日：2006-11-21

申请人： Daniel F. Filipovic ,  Inyup Kang

发明人： Daniel F. Filipovic ,  Inyup Kang

IPC分类号： H04B1/10 ,  H04B1/26

CPC分类号： H04B15/00 ,  H04B1/109

摘要： In accordance with one aspect of the disclosure, apparatus are provided. A filter is provided to receive from an antenna a receive signal of a given type and a low noise amplifier is provided to amplify the received signal. A translator down translates the receive signal carried at a radio frequency to be carried at an intermediate frequency. An I/Q channel separator is provided to separate the receive signal carried at the intermediate frequency into an analog in-phase (I) signal in an I channel and an analog quadrature-phase (Q) in a Q channel. An analog-to-digital (A/D) converter is provided to respectively convert the I signal and the Q signal to digital domain representations of the I signal and the Q signal. An intermodulation (IM) distortion avoider is provided to avoid IM distortion in the receive signal. The IM distortion avoider includes a carrier frequency exchanger to exchange an IM carrier frequency of IM distortion contained in the receive signal with a carrier frequency of the receive signal.

摘要翻译： 根据本公开的一个方面，提供了装置。 提供了一种滤波器，用于从天线接收给定类型的接收信号，并且提供低噪声放大器以放大所接收的信号。 翻译器向下转换以一个中频传送的射频携带的接收信号。 提供I / Q通道分离器以将在中频载送的接收信号分离为I通道中的模拟同相（I）信号和Q通道中的模拟正交相（Q）。 提供模数（A / D）转换器以分别将I信号和Q信号转换为I信号和Q信号的数字域表示。 提供互调（IM）失真提供者以避免接收信号中的IM失真。 IM失真解除器包括载波频率交换机，用于将接收信号中包含的IM失真的IM载波频率与接收信号的载波频率进行交换。

公开(公告)号：US20110206151A1

公开(公告)日：2011-08-25

申请号：US12711128

申请日：2010-02-23

申请人： Michael L. McCloud ,  Matthias Brehler ,  Ju Won Park ,  Jong Hyeon Park ,  Je Woo Kim ,  Inyup Kang ,  Brian C. Banister

发明人： Michael L. McCloud ,  Matthias Brehler ,  Ju Won Park ,  Jong Hyeon Park ,  Je Woo Kim ,  Inyup Kang ,  Brian C. Banister

IPC分类号： H04L1/02 ,  H04L27/06

CPC分类号： H04L25/03229 ,  H04B7/0413 ,  H04L25/03242 ,  H04L25/03318 ,  H04L2025/0342 ,  H04L2025/03426

摘要： Providing for reduced complexity or improved accuracy in de-mapping received wireless data streams for multi-channel wireless communication is described herein. By way of example, a low-complexity likelihood algorithm can be employed to de-map data bits from the wireless data streams. In one particular example, the likelihood algorithm can approximate a received bit with a subset of received wireless symbols correlated the bit, reducing algorithm complexity. In other examples, a limited set of received wireless symbols can be employed for the subset, further reducing algorithm complexity. According to at least one other example, logarithmic terms of the algorithm can be approximated with non-logarithmic functions, such as a look-up table, series expansion, polynomial approximation, or the like. These approximations can enhance symbol de-mapping accuracy while maintaining or improving processing overhead for a wireless receiver.

摘要翻译： 本文描述了为了解复用用于多信道无线通信的接收的无线数据流而提供降低的复杂度或提高的精度。 作为示例，可以采用低复杂度似然算法来从无线数据流解映射数据比特。 在一个特定示例中，似然算法可以用接收到的无线符号的子集近似接收到的比特，从而降低算法的复杂度。 在其他示例中，可以对该子集采用有限的一组接收到的无线符号，进一步降低了算法的复杂度。 根据至少另一个示例，算法的对数项可以用非对数函数来近似，例如查找表，串联展开，多项式近似等。 这些近似可以增强符号解映射精度，同时保持或改善无线接收机的处理开销。

公开(公告)号：US07656935B2

公开(公告)日：2010-02-02

申请号：US11621145

申请日：2007-01-09

申请人： Inyup Kang ,  Mark Roh ,  Brendon L. Johnson

发明人： Inyup Kang ,  Mark Roh ,  Brendon L. Johnson

IPC分类号： H04B1/707

CPC分类号： H04B1/70758 ,  H04B1/70757 ,  H04B1/7117

摘要： In general, the invention facilitates searching for energy peaks in spread spectrum wireless communication systems with greater precision. More particularly, various embodiments of the invention may involve reporting not only an energy peak and its associated offset, but also the energy levels corresponding to one or more offsets occurring before and after the offset at which the energy peak occurs. Interpolation or extrapolation techniques may be used to predict the actual location of an energy peak based on the apparent location of the peak and the energy levels observed at surrounding offsets.

摘要翻译： 通常，本发明有助于以更高的精度搜索扩频无线通信系统中的能量峰值。 更具体地，本发明的各种实施例可以包括不仅报告能量峰值及其相关联的偏移，还报告对应于发生能量峰值的偏移之前和之后发生的一个或多个偏移的能级。 可以使用插值或外插技术来基于峰值的表观位置和在周围偏移处观察到的能量水平来预测能量峰值的实际位置。

公开(公告)号：US20080112381A1

公开(公告)日：2008-05-15

申请号：US11560060

申请日：2006-11-15

申请人： Byonghyo Shim ,  Farrokh Abrishamkar ,  Inyup Kang

发明人： Byonghyo Shim ,  Farrokh Abrishamkar ,  Inyup Kang

IPC分类号： H04B7/216

CPC分类号： H04B1/71072 ,  H04B1/71055 ,  H04B1/71075 ,  H04B1/7115 ,  H04B2201/70702

摘要： Techniques for recovering a desired transmission in the presence of interfering transmissions are described. For iterative detection and cancellation, multiple groups of code channels are formed for a plurality of code channels for at least one sector. Processing is performed for the multiple groups of code channels in multiple iterations. For each iteration, data detection and signal cancellation are performed for the multiple groups of code channels in multiple stages, e.g., in a sequential order starting with the strongest group to the weakest group. Each stage of each iteration may perform data detection, signal reconstruction, and signal cancellation. Each stage of each iteration may also perform equalization, data detection, signal reconstruction, and signal cancellation.

摘要翻译： 描述了在存在干扰传输的情况下恢复所需传输的技术。 对于迭代检测和消除，针对至少一个扇区的多个代码信道形成多组代码信道组。 在多个迭代中针对多组代码信道执行处理。 对于每个迭代，对于多个阶段的多组代码信道执行数据检测和信号消除，例如以从最强组到最弱组的顺序顺序执行。 每个迭代的每个阶段都可以执行数据检测，信号重建和信号消除。 每个迭代的每个阶段也可以执行均衡，数据检测，信号重建和信号消除。

公开(公告)号：US07369815B2

公开(公告)日：2008-05-06

申请号：US10786585

申请日：2004-02-24

申请人： Inyup Kang ,  Karthikeyan Ethirajan

发明人： Inyup Kang ,  Karthikeyan Ethirajan

IPC分类号： H04B1/16 ,  H04M1/00

CPC分类号： H04W52/028 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/144

摘要： An integrated circuit for a modem processor includes processing units that are partitioned into “always-on” and “collapsible” power domains. An always-on power domain is powered on at all times. A collapsible power domain can be powered off if the processing units in the power domain are not needed. A power control unit within an always-on power domain powers down the collapsible power domains after going into sleep and powers up these domains after waking up from sleep. Tasks for powering down the collapsible power domains may include (1) saving pertinent hardware registers for these power domains, (2) freezing output pins of the IC to minimally disturb external units, (3) clamping input pins of the collapsed power domains, (4) powering down a main oscillator and disabling the oscillator clock, and so on. Complementary tasks are performed for powering up the collapsed power domains.

摘要翻译： 用于调制解调器处理器的集成电路包括被划分为“永远在线”和“可折叠”电力域的处理单元。 永远在线的电源域始终打开。 如果不需要电源域中的处理单元，则可以关闭可折叠电源域。 永远在线的电源域内的电源控制单元在睡眠后唤醒可折叠的电源域，并在从睡眠中唤醒之后启动这些域。 关闭可折叠电源域的任务可能包括（1）保存这些电源域的相关硬件寄存器，（2）冻结IC的输出引脚以最小限度地干扰外部单元，（3）钳位崩溃的电源域的输入引脚（ 4）关闭主振荡器并禁用振荡器时钟，等等。 执行补充任务以加电折叠的电源域。

公开(公告)号：US07076225B2

公开(公告)日：2006-07-11

申请号：US10034734

申请日：2001-12-21

申请人： Tao Li ,  Christian Holenstein ,  Inyup Kang ,  Brett C. Walker ,  Paul E. Peterzell ,  Raghu Challa ,  Matthew L. Severson ,  Arun Raghupathy ,  Gilbert Christopher Sih

发明人： Tao Li ,  Christian Holenstein ,  Inyup Kang ,  Brett C. Walker ,  Paul E. Peterzell ,  Raghu Challa ,  Matthew L. Severson ,  Arun Raghupathy ,  Gilbert Christopher Sih

IPC分类号： H04B7/00

CPC分类号： H03G3/3078 ,  H03G3/3068 ,  H03G3/3089

摘要： A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/analog circuitry, and a serial bus interface (SBI) unit to provide controls for the RF/analog circuitry via a serial bus. The DVGA may be advantageously designed and located as described herein. The operating mode of the VGA loop may be selected based on the operating mode of the DC loop, since these two loops interact with one another. The duration of time the DC loop is operated in an acquisition mode may be selected to be inversely proportional to the DC loop bandwidth in the acquisition mode. The controls for some or all of the RF/analog circuitry may be provided via the serial bus.

摘要翻译： 具有用于去除信号分量的DC偏移的DC环路的直接下变频接收机架构，提供一系列增益的数字可变增益放大器（DVGA），用于为DVGA和RF提供增益控制的自动增益控制（AGC）回路 /模拟电路和串行总线接口（SBI）单元，通过串行总线为RF /模拟电路提供控制。 可以如本文所述有利地设计和定位DVGA。 可以基于DC循环的操作模式来选择VGA循环的操作模式，因为这两个循环彼此相互作用。 在采集模式下，DC环路工作的持续时间可以被选择为与采集模式中的DC环路带宽成反比。 一些或全部RF /模拟电路的控制可以通过串行总线提供。