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1. 发明专利

JP2009201122A Multicarrier receiver with antenna selection and maximum ratio combining 有权
标题翻译：天线选择和最大比例组合的多功能接收机
公开(公告)号：JP2009201122A
公开(公告)日：2009-09-03
申请号：JP2009100175
申请日：2009-04-16
申请人： Intel Corp , インテル・コーポレーション
发明人： SADRI ALI , MALTSEV ALEXANDER , SERGEYEV SERGEY , DAVYDOV ALEXEI , SERGEYEV VADIM
IPC分类号： H04B7/08 , H04J11/00 , H04L27/26
CPC分类号： H04W28/04 , H04B7/0857 , H04B7/0874 , H04L5/0023 , H04L27/2608 , H04L27/2647 , H04W24/00
摘要： PROBLEM TO BE SOLVED: To provide transceivers, including receivers, and methods of communicating OFDM signals that provide flexibility between throughput and range in wireless local area networks (WLANs).
SOLUTION: Modern digital communication system, including WLANs, uses symbol-modulated orthogonal subcarriers as a modulation system to help signals survive in environments having multi-path reflections and/or strong interference. A reconfigurable multichannel receiver can selectively operate in increased throughput modes and/or increased range modes. The receiver can select two or more antennas to receive more than one subchannel of a wideband orthogonal frequency division multiplexed (OFDM) channel. Maximum-ratio combining can be performed on corresponding symbol-modulated subcarriers from the two or more antennas, and a single OFDM symbol can be generated from the subchannels received by the two or more antennas. In other embodiments, more than one subchannel of a wideband OFDM channel can be received through a single antenna selected from a plurality of spatially diverse antennas.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供收发器，包括接收机，以及在无线局域网（WLAN）中提供吞吐量和范围之间的灵活性的OFDM信号的通信方法。解决方案：包括WLAN在内的现代数字通信系统使用符号调制的正交子载波作为调制系统，以帮助信号在具有多径反射和/或强干扰的环境中存活。可重新配置的多通道接收器可以选择性地以增加的吞吐量模式和/或增加的范围模式操作。接收机可以选择两个或多个天线来接收宽带正交频分复用（OFDM）信道的多于一个子信道。可以对来自两个或更多个天线的相应的符号调制子载波执行最大比合并，并且可以从由两个或更多个天线接收的子信道生成单个OFDM符号。在其他实施例中，宽带OFDM信道的多于一个子信道可以通过从多个空间多样的天线中选择的单个天线来接收。版权所有（C）2009，JPO＆INPIT

2. 发明申请

WO2005067246A3 QUASI-PARALLEL MULTICHANNEL RECEIVERS FOR WIDEBAND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS AND ASSOCIATED METHODS 审中-公开
标题翻译：宽带正交频分复用通信的准平行多信道接收机及相关方法
公开(公告)号：WO2005067246A3
公开(公告)日：2005-11-10
申请号：PCT/US2004043042
申请日：2004-12-20
申请人： INTEL CORP , MALTSEV ALEXANDER , SADRI ALI , SERGEYEV SERGEY , BELONOZHKIN ALEXANDER , SERGEYEV VADIM
发明人： MALTSEV ALEXANDER , SADRI ALI , SERGEYEV SERGEY , BELONOZHKIN ALEXANDER , SERGEYEV VADIM
IPC分类号： H04B1/40 , H04L27/26
CPC分类号： H04L27/2649 , H04B1/005 , H04B1/0057 , H04B1/16 , H04B1/406 , H04B7/0413 , H04L27/2608 , H04L27/2653
摘要： A quasi-parallel receiver may simultaneously receive signals within several subchannels that comprise a wideband channel. The receiver includes a subchannel filter selection switch that provides a baseband signal to a selected one of a plurality of subchannel low-pass filters. A heterodyne frequency generator provides one of a plurality of heterodyne frequencies to convert an RF signal received within a selected subchannel to the baseband signal. The subchannel low-pass filters accumulate signal information from an associated one of a plurality of subchannels during a filter-input sampling interval. In some embodiments, individual analog-to-digital converters receive the accumulated signal outputs from an associated subchannel filter and generate digital signals for a subsequent Fourier transformation. In some embodiments, a normalized signal output may be provided to the analog-to-digital converters, allowing the use of lower resolution analog-to-digital converters. The analog-to-digital converters may have sampling rates based on the subchannel bandwidth.
摘要翻译：准并行接收机可以同时接收包括宽带信道的几个子信道内的信号。接收器包括子信道滤波器选择开关，其向多个子信道低通滤波器中选定的一个提供基带信号。外差频率发生器提供多个外差频率中的一个以将在选择的子信道内接收的RF信号转换为基带信号。子信道低通滤波器在滤波器输入采样间隔期间累积来自多个子信道中相关的一个子信道的信号信息。在一些实施例中，各个模数转换器从相关联的子信道滤波器接收累加的信号输出并且生成用于随后的傅立叶变换的数字信号。在一些实施例中，归一化信号输出可以被提供给模数转换器，从而允许使用较低分辨率的模数转换器。模数转换器可以具有基于子信道带宽的采样率。

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