公开(公告)号：US20140169511A1

公开(公告)日：2014-06-19

申请号：US14187760

申请日：2014-02-24

Applicant: Broadcom Corporation

Inventor： Fu-Hsuan Chiu

IPC: H04L7/00 ,  H04L25/02 ,  H04B7/08

CPC classification number: H04L7/0079 ,  H04B7/0413 ,  H04B7/08 ,  H04B7/0871 ,  H04B7/0894 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0228

Abstract: Techniques are described herein that receive communications transmitted according to different operation modes at a multi-mode, programmable receiver system. The multi-mode, programmable receiver system may receive communication signals from transmit antennas in “cells” (e.g., base station transceivers and/or the like) according to one or more operation modes, using receive antennas. The received signals may be converted and processed by various modules of the multi-mode, programmable receiver system to produce an output signal. The multi-mode, programmable receiver system includes modules that are programmable to be selectively enabled or disabled according to an operation mode in accordance with which the multi-mode, programmable receiver system operates.

Abstract translation: 本文描述了在多模式可编程接收机系统处接收根据不同操作模式发送的通信的技术。 多模式可编程接收机系统可以使用接收天线根据一个或多个操作模式从“小区”（例如，基站收发器等）中的发射天线接收通信信号。 所接收的信号可以由多模式可编程接收机系统的各种模块转换和处理，以产生输出信号。 多模式可编程接收器系统包括可编程以根据多模式可编程接收器系统操作的操作模式被选择性地使能或禁用的模块。

公开(公告)号：US20130141257A1

公开(公告)日：2013-06-06

申请号：US13624228

申请日：2012-09-21

Applicant: BROADCOM CORPORATION

Inventor： Fu-Hsuan Chiu ,  Mark Hahm

IPC: H03M7/00

CPC classification number: H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

Abstract: Disclosed are various embodiments that provide turbo decoding implemented as at least a portion of baseband processing circuitry. A turbo decoder may obtain a data block associated with a transmission time interval, the data block comprising a sequence of bits, the data block being encoded according to a coding rate. An alpha operation is performed on the data block for a first decoding iteration to generate first alpha decode data, the alpha operation for the first decoding iteration being performed continuously. An alpha operation is performed on the data block for a second decoding iteration to generate second alpha decode data, the alpha operation for the second decoding iteration being performed according to a set of alpha evaluation windows. The initialization of the alpha windows during the second alpha decode may be derived from the alpha state data that is stored in memory from the first alpha decode.

Abstract translation: 公开了提供作为基带处理电路的至少一部分实现的turbo解码的各种实施例。 turbo解码器可以获得与传输时间间隔相关联的数据块，所述数据块包括比特序列，所述数据块根据编码速率进行编码。 对第一解码迭代的数据块执行阿尔法操作以产生第一阿尔法解码数据，连续执行第一解码迭代的阿尔法操作。 对第二解码迭代的数据块执行阿尔法操作以产生第二阿尔法解码数据，根据一组α评估窗口进行第二解码迭代的阿尔法操作。 第二个alpha解码期间的alpha窗口的初始化可以从存储在第一个alpha解码器的存储器中的α状态数据导出。

公开(公告)号：US20170048872A1

公开(公告)日：2017-02-16

申请号：US14926237

申请日：2015-10-29

Applicant: Broadcom Corporation

Inventor： Fu-Hsuan Chiu ,  Guosen Yue

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W16/02 ,  H04W16/10

Abstract: Embodiments provide systems and methods for selecting almost-blank sub-frames (ABSs) in wireless networks. ABSs may be utilized as part of enhanced inter-cell interference cancellation (eICIC). In an embodiment, an ABS pattern is selected in a distributed fashion without use of a direct interface between neighboring base stations. Embodiments operate with a hybrid self-organizing network (SON) that includes a centralized self-organizing network (cSON) unit and a distributed self-organizing network (dSON) unit. The cSON may provide the dSON with information about a plurality of ABS patterns, and the dSON may utilize the information received from the cSON to select an ABS pattern from the plurality of ABS patterns. In some embodiments, a base station may select neighboring base stations to perform eICIC based on a reference signal received power (RSRP).

Abstract translation: 实施例提供了用于在无线网络中选择几乎为空的子帧（ABS）的系统和方法。 ABS可以用作增强的小区间干扰消除（eICIC）的一部分。 在一个实施例中，以分布式方式选择ABS图案，而不使用相邻基站之间的直接接口。 实施例使用包括集中式自组织网络（cSON）单元和分布式自组织网络（dSON）单元的混合自组织网络（SON）来操作。 cSON可以向dSON提供关于多个ABS模式的信息，并且dSON可以利用从cSON接收的信息来从多个ABS模式中选择ABS模式。 在一些实施例中，基站可以基于参考信号接收功率（RSRP）来选择相邻基站来执行eICIC。

公开(公告)号：US20160234840A1

公开(公告)日：2016-08-11

申请号：US14853423

申请日：2015-09-14

Applicant: Broadcom Corporation

Inventor： Guosen Yue ,  Fu-Hsuan Chiu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0032 ,  H04L5/006 ,  H04L5/0073 ,  H04W28/16

Abstract: Methods relating to managing operations of small cells are provided. One method includes receiving, from a management system configured to manage one or more operations of a plurality of small cells, a plurality of fractional frequency reuse (FFR) patterns for a frequency range. Each FFR pattern is configured to define a plurality of cell groupings, each including one or more of the plurality small cells. Each of the plurality of cell groupings is configured to transmit downlink transmissions over a different one of a plurality of frequency bands within the frequency range. The method further includes selecting a first FFR pattern from among the plurality of FFR patterns received from the management system and transmitting downlink transmissions in accordance with the first FFR pattern.

Abstract translation: 提供了与小型电池的操作有关的方法。 一种方法包括从被配置为管理多个小小区的一个或多个操作的管理系统接收用于频率范围的多个小数频率重用（FFR）模式。 每个FFR模式被配置为定义多个小区分组，每个小区分组包括多个小小区中的一个或多个。 多个小区分组中的每一个被配置为在频率范围内的多个频带中的不同的一个频带上发送下行链路传输。 该方法还包括从从管理系统接收的多个FFR模式中选择第一FFR模式，并根据第一FFR模式发送下行链路传输。

公开(公告)号：US08699612B1

公开(公告)日：2014-04-15

申请号：US13657438

申请日：2012-10-22

Applicant: Broadcom Corporation

Inventor： Fu-Hsuan Chiu

IPC: H04B7/02

CPC classification number: H04L7/0079 ,  H04B7/0413 ,  H04B7/08 ,  H04B7/0871 ,  H04B7/0894 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0228

Abstract: Techniques are described herein that receive communications transmitted according to different operation modes at a multi-mode, programmable receiver system. The multi-mode, programmable receiver system may receive communication signals from transmit antennas in “cells” (e.g., base station transceivers and/or the like) according to one or more operation modes, using receive antennas. The received signals may be converted and processed by various modules of the multi-mode, programmable receiver system to produce an output signal. The multi-mode, programmable receiver system includes modules that are programmable to be selectively enabled or disabled according to an operation mode in accordance with which the multi-mode, programmable receiver system operates.

Abstract translation: 本文描述了在多模式可编程接收机系统处接收根据不同操作模式发送的通信的技术。 多模式可编程接收机系统可以使用接收天线根据一个或多个操作模式从“小区”（例如，基站收发器等）中的发射天线接收通信信号。 所接收的信号可以由多模式可编程接收机系统的各种模块转换和处理，以产生输出信号。 多模式可编程接收器系统包括可编程以根据多模式可编程接收器系统操作的操作模式被选择性地使能或禁用的模块。

公开(公告)号：US20130143577A1

公开(公告)日：2013-06-06

申请号：US13680495

申请日：2012-11-19

Applicant: Broadcom Corporation

Inventor： Fu-Hsuan Chiu ,  Hongwei Kong ,  Chun-Hsuan Kuo ,  Severine Catreux ,  Oghenekome Oteri

IPC: H04W36/18

CPC classification number: H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

Abstract: Various methods and systems are provided for frequency offset correction. In one example, among others, a method includes determining a phase estimation of a RF signal, rotating a sample of the RF signal based at least in part upon the phase estimation, and determining a channel estimation based upon the rotated sample. The channel estimation may be derotated based at least in part upon the phase estimation. In another example, a communication device includes a phase rotator configured to rotate RF signal samples based upon a rotation offset, a channel estimation filter configured to determine channel estimates, and a phase derotator configured to rotate the channel estimates based upon another rotation offset. Another example of a communication device includes a differential detector configured to determine conjugate multiply results, an averaging filter configured to sum the results, and a phase estimator configured to determine a phase estimation based upon the sum.

Abstract translation: 为频偏补偿提供了各种方法和系统。 在一个示例中，其中包括确定RF信号的相位估计，至少部分地基于相位估计来旋转RF信号的采样，以及基于旋转的采样来确定信道估计。 至少部分地基于相位估计可以消除信道估计。 在另一示例中，通信设备包括：相位旋转器，被配置为基于旋转偏移来旋转RF信号样本，被配置为确定信道估计的信道估计滤波器，以及被配置为基于另一个旋转偏移旋转信道估计的相位解旋器。 通信设备的另一个例子包括配置成确定共轭乘法结果的差分检测器，被配置为求和结果的平均滤波器以及被配置为基于总和确定相位估计的相位估计器。

公开(公告)号：US09025653B1

公开(公告)日：2015-05-05

申请号：US14064643

申请日：2013-10-28

Applicant: Broadcom Corporation

Inventor： Fu-Hsuan Chiu ,  Kai Li

IPC: H04L25/03 ,  H04L25/02

CPC classification number: H04L25/03159 ,  H04L25/0204 ,  H04L2025/03522

Abstract: A frequency domain chip-level equalizer is disclosed. The equalizer includes an estimation module configured to generate a frequency domain estimate of an auto-correlation function of a received signal; and an equalization module configured to apply frequency domain equalization to the received signal using the frequency domain estimate of the auto-correlation function to generate frequency domain equalized samples of the received signal. The equalizer further includes an Inverse Fast Fourier Transform (IFFT) module configured to generate time domain equalized samples of the received signal from the frequency domain equalized samples.

Abstract translation: 公开了一种频域芯片级均衡器。 均衡器包括：估计模块，被配置为生成接收信号的自相关函数的频域估计; 以及均衡模块，被配置为使用所述自相关函数的频域估计来对所述接收信号应用频域均衡以生成所述接收信号的频域均衡样本。 均衡器还包括被配置为从频域均衡样本产生接收信号的时域均衡样本的快速傅里叶逆变换（IFFT）模块。

公开(公告)号：US20150078429A1

公开(公告)日：2015-03-19

申请号：US14033818

申请日：2013-09-23

Applicant: Broadcom Corporation

Inventor： Hou-Shin Chen ,  Fu-Hsuan Chiu

IPC: H04L25/03

CPC classification number: H04L25/03159

Abstract: A communication device, such as a smart phone, includes logic to determine a noise power estimate. In an example, a frequency domain calculation may be used to determine noise components within the noise power estimate. Further, a product of a channel estimate and equalizer effect may be used in the determination of the levels noise components, such as, inter-symbol interference power and neighbor cell interference power.

Abstract translation: 诸如智能电话的通信设备包括确定噪声功率估计的逻辑。 在一个示例中，可以使用频域计算来确定噪声功率估计中的噪声分量。 此外，可以使用信道估计和均衡器效应的乘积来确定诸如符号间干扰功率和相邻小区干扰功率的电平噪声分量。

公开(公告)号：US20140269847A1

公开(公告)日：2014-09-18

申请号：US13854432

申请日：2013-04-01

Applicant: BROADCOM CORPORATION

Inventor： Fu-Hsuan Chiu

IPC: H04B1/7103

CPC classification number: H04B1/71055 ,  H04B2201/70703 ,  H04B2201/70722

Abstract: Techniques are described herein that perform symbol-level equalization using multiple spreading factors. The techniques may allow for symbol-level equalization to be performed between a serving cell and a non-serving cell(s) for WCDMA and HSDPA protocols, for example. A serving cell operates using a first spreading factor, and a non-serving cell(s) operates using a second, different spreading factor. Data communications received from the serving cell and the non-serving cell(s) may be aligned using extended channel representation(s) of the non-serving cell(s) and/or scrambling code offset(s). The aligned communications may be equalized using symbol-level equalization to obtain a joint linear minimum mean square error between the serving cell and the non-serving cell(s).

Abstract translation: 本文描述了使用多个扩展因子执行符号级均衡的技术。 这些技术可以允许例如在用于WCDMA和HSDPA协议的服务小区和非服务小区之间执行符号级均衡。 服务小区使用第一扩频因子操作，并且非服务小区使用第二不同的扩频因子来操作。 可以使用非服务小区的扩展信道表示和/或扰码偏移来对从服务小区和非服务小区接收的数据通信进行比对。 可以使用符号级均衡来对齐对准的通信，以获得服务小区与非服务小区之间的联合线性最小均方误差。

公开(公告)号：US20140112377A1

公开(公告)日：2014-04-24

申请号：US13657438

申请日：2012-10-22

Applicant: BROADCOM CORPORATION

Inventor： Fu-Hsuan Chiu

IPC: H04B1/44 ,  H04L27/01

CPC classification number: H04L7/0079 ,  H04B7/0413 ,  H04B7/08 ,  H04B7/0871 ,  H04B7/0894 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0228

Abstract: Techniques are described herein that receive communications transmitted according to different operation modes at a multi-mode, programmable receiver system. The multi-mode, programmable receiver system may receive communication signals from transmit antennas in “cells” (e.g., base station transceivers and/or the like) according to one or more operation modes, using receive antennas. The received signals may be converted and processed by various modules of the multi-mode, programmable receiver system to produce an output signal. The multi-mode, programmable receiver system includes modules that are programmable to be selectively enabled or disabled according to an operation mode in accordance with which the multi-mode, programmable receiver system operates.