公开(公告)号：US20130022001A1

公开(公告)日：2013-01-24

申请号：US13624511

申请日：2012-09-21

Applicant: Broadcom Corporation

Inventor： Chengjin ZHANG ,  Jun Zheng ,  Vinko Erceg ,  Severine Catreux-Erceg ,  Pieter Roux ,  Pieter Van Rooyen

IPC: H04W4/06

CPC classification number: H04B7/0452 ,  H04B17/382 ,  H04W52/42

Abstract: Various aspects of a method and a system for a range reduction scheme for user selection in a multiuser MIMO downlink transmission are presented. Aspects of a system for range reduction may comprise a range reduction processor that determines a plurality of channel measurements corresponding to a plurality of signals. The range reduction processor may compute a plurality of channel capacities based on the channel measurements corresponding to a subset of the plurality of signals having channel gain that is greater than a remaining portion of the plurality of signals. Aspects of a method may comprise determining a plurality of channel measurements corresponding to a plurality of signals, and computing a plurality of channel capacities based on said channel measurements corresponding to a subset of the plurality of signals having a channel gain that is greater than a remaining portion of the plurality of signals.

Abstract translation: 提出了一种用于多用户MIMO下行链路传输中的用户选择的范围缩减方案的方法和系统的各个方面。 用于范围缩小的系统的方面可以包括范围缩小处理器，其确定对应于多个信号的多个信道测量。 范围缩小处理器可以基于与具有大于多个信号的剩余部分的信道增益的多个信号的子集相对应的信道测量来计算多个信道容量。 方法的方面可以包括：确定对应于多个信号的多个信道测量，以及基于与多个信号的子集相对应的所述信道测量来计算多个信道容量，该信道测量具有大于剩余的信道增益的信道增益 部分信号。

公开(公告)号：US08706166B2

公开(公告)日：2014-04-22

申请号：US13753097

申请日：2013-01-29

Applicant: Broadcom Corporation

Inventor： Severine Catreux-Erceg ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC: H04B1/38

CPC classification number: H04B1/02 ,  H04B1/06 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/0808 ,  H04B7/0814 ,  H04B7/082 ,  H04B7/0874 ,  H04L1/0618

Abstract: Systems and methods that provide channel-adaptive antenna selection in multi-antenna element communication systems are provided. In one embodiment, a method that selects a subset of receive antennas of a receiver to receive a transmitted RF signal may include, for example, one or more of the following: establishing possible subsets of the receive antennas; determining sets of channel parameter statistics corresponding to the possible subsets of the receive antennas; computing output bit error rates of the receiver, each output bit error rate being computed based on at least one set of channel parameter statistics; selecting a particular possible subset of the receive antennas based upon a criterion predicated on the computed output bit error rates; and connecting one or more RF chains of the receiver to the receive antennas of the selected particular possible subset.

Abstract translation: 提供了在多天线单元通信系统中提供信道自适应天线选择的系统和方法。 在一个实施例中，选择接收器的接收天线的子集以接收所发送的RF信号的方法可以包括例如以下中的一个或多个：建立接收天线的可能子集; 确定与所述接收天线的可能子集相对应的信道参数统计的集合; 计算接收机的输出比特错误率，每个输出误码率是基于至少一组信道参数统计来计算的; 基于所计算的输出误码率的准则，选择接收天线的特定可能子集; 以及将所述接收机的一个或多个RF链连接到所选择的特定可能子集的接收天线。

公开(公告)号：US08891606B2

公开(公告)日：2014-11-18

申请号：US13732047

申请日：2012-12-31

Applicant: Broadcom Corporation

Inventor： Mark Kent ,  Uri Landau ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Ning Kong ,  Pieter Roux

IPC: H03K5/159 ,  H04B7/04 ,  H03H7/30 ,  H03H7/40 ,  H04L25/03

CPC classification number: H04B7/0413 ,  H04L25/03038 ,  H04L2025/03426 ,  H04L2025/03471 ,  H04L2025/03617 ,  H04L2025/03662 ,  H04L2025/037

Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached.

Abstract translation: 本文公开了一种用于在接收机中处理信号的方法和系统，并且可以包括利用至少一个信道响应向量和至少一个相关向量来更新多个滤波器抽头，对于多个接收到的簇，基于与该at 至少一个信道响应向量和所述至少一个相关向量。 可以利用更新的多个滤波器抽头的至少一部分来对接收信号簇的至少一部分进行滤波。 只要达到接收信号簇的指定信噪比（SNR），就可以重新进行更新。 可以在多次迭代期间更新初始化值，并且可以在达到多次迭代的指定次数时重新进行更新。