CN1864346A - 在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法 - Google Patents

在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法 Download PDF

Info

Publication number
CN1864346A
CN1864346A CNA2004800286342A CN200480028634A CN1864346A CN 1864346 A CN1864346 A CN 1864346A CN A2004800286342 A CNA2004800286342 A CN A2004800286342A CN 200480028634 A CN200480028634 A CN 200480028634A CN 1864346 A CN1864346 A CN 1864346A
Authority
CN
China
Prior art keywords
modulation
scheme
data flow
encoding
condition information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2004800286342A
Other languages
English (en)
Other versions
CN1864346B (zh
Inventor
金奉会
徐东延
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1864346A publication Critical patent/CN1864346A/zh
Application granted granted Critical
Publication of CN1864346B publication Critical patent/CN1864346B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开一种在多输入/多输出(MIMO)通信系统中通信的方法。该方法包括步骤:接收对应于该MIMO系统中每个发送的数据流的信道状态信息(CSI)(S10),和基于该接收的信道状态信息(CSI),确定(S12)公共调制和/或编码方案(MCS)并将其应用(S14)于所有的该发送数据流。

Description

在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法
技术领域
本发明涉及在多输入/多输出(MIMO)系统中选择用于多个数据流的公共数据调制和编码设置(MCS)的方法。
背景技术
现行的高速下行链路分组访问(HSDPA)系统在发射天线中使用单个数据流将数据发送给用户设备(UE)。例如,参见JUHUAKORHONEN,INTRODUCTION TO 3G MOBILE COMMUNICATIONSSYSTEMS(2003年,第二版),其整个内容作为参考资料整体结合在此。在以上所述的电信系统中,基站称为节点B,并且移动终端、用户单元等等称为用户设备(UE)。
在现行的HSDPA系统中,调制和编码设置(MCS)被固定用于该单个数据流,并且数据基于固定的MCS经由发射天线发送。调制和编码设置的一个例子是QPSK调制和1/2的turbo编码。但是,不断发展的电信系统将有可能实现利用多个发射天线和多个接收天线(例如,MIMO系统)。在MIMO系统中,可以为每个发送的数据流选择单独的MCS。但是,现在还没有实现选择该MCS的标准。
发明内容
因此,本发明的一个目的是至少针对以上提到的和其它的问题。
本发明的另一个目的是规定MIMO系统中选择用于多个数据流的MCS的标准。
本发明的又一个目的是选择降低了信令负载要求的MCS。
为了实现这些目的和其他的优点,和按照本发明的目的,如在此处实施和广泛地描述的,本发明提供一种新颖的在多输入/多输出通信系统中通信的方法。该方法包括接收对应于该MIMO系统中每个发送数据流的信道状态信息,和基于该接收的信道状态信息,确定用于所有的发送数据流的公共调制方案。还可以基于接收的信道状态信息选择公共编码方案、公共调制方案或者公共调制和编码设置。
在下面的描述中将在某种程度上阐述本发明的额外的优点、目的和特点,在参阅以下内容时或者可以从本发明的实践中获悉,本发明额外的优点、目的和特点在某种程度上对于那些本领域普通的技术人员将变得显而易见。通过在著述的说明书及其权利要求以及附图中特别指出的结构,可以实现和获得本发明的目的和其他的优点。
附图说明
下面将参考以下的附图详细地描述本发明,其中相同的参考数字涉及相同的单元,其中:
图1是按照本发明不同的例子用于解释MCS选择的V-BLAST系统的发射侧的概述;
图2是该V-BLAST系统接收侧的概述;和
图3是举例说明按照本发明选择共同MCS方法的流程图。
具体实施方式
现在将参考附图描述本发明,在几个附图中相同的参考数字指定相同的或者相应的部分。
MIMO系统的一个例子在图1和2中示出,并且被称为V-BLAST(Vertical Bell Laboratories Layered Space Time,纵向贝尔实验室分层空时)系统。更详细地,MIMO无线通信系统使用多元天线阵列通过开发信道的空间性能提高在散射丰富的环境中用户容量。一个这样的系统是该V-BLAST系统,与D-BLAST系统的对角分层空时结构相对反,其使用纵向分层的空时结构。该V-BLAST系统在由P.W.Wolniansky,G.J.Foschini,G.D.Golden,和R.A.Valenzuela撰写的“V-BLAST:AnArchitecture for Realizing Very High Data Rates Over the Rich-ScatteringWireless Channel”(ISSSE′98,1998年10月),和在由相同的作者撰写的“Detection algorithm and initial laboratory results using V-BLASTspace-time communication architecture”(IEEE,Vol.35,No.1,1999年1月)中描述,引入其两者作为参考资料。
在以上所述的V-BLAST系统中,分离发送和接收的子数据流的能力取决于在不同的子数据流如何经由该环境传播方面上微小的差别。因此,该V-BLAST系统依靠经由多个发射机天线发射的分离的子流的非相关性。
更详细地,图1举例说明该V-Blast系统的发射侧,并且图2举例说明该V-Blast系统的接收侧。首先将提供对该V-Blast系统操作的描述,继之以按照本发明不同的例子选择用于该发射天线的MCS的描述。
如图1所示,该V-Blast系统的发射侧包括多路分解器2,编码、交织和映射单元4,扩展单元6,码元合成单元8,扰频单元10和发射天线12。在该MIMO系统中,可以为每个不同的数据流选择单独的MCS。现在将给出发射侧操作的例子。
例如,假设输入到该多路分解器2的数据流包括9600个比特。然后,该多路分解器2将输入的数据流分段为例如每个包括4800个比特的两个数据块(假设两个发射天线)。这两个4800个数据比特然后由编码、交织和映射单元4处理。更详细地,基于用于特定的天线的编码方案(假设1/2的turbo编码用于第一个天线121,而1/3的turbo编码用于第T个天线12T)对该4800个比特的每个进行编码。因此,在这个例子中,第一个4800个比特将被编码为9600个比特(即,1/2的turbo编码),并且第T个4800个比特将被编码为14400个比特(即,1/3的turbo编码)。然后将这两个编码的数据块存储进交织器中用于映射。假设正交振幅调制(QAM)被用于第一个天线121,而正交相移键控(QuadraturePhase Shift Keying,QPSK)被用于第T个天线12T。然后,第一个9600个编码的比特将被映射为2400个码元(即,QAM将4个比特映射为一个码元,从而9600个编码的比特将被映射为2400个码元)。第T个14400个比特将被映射为7200个码元(即,QPSK将2个比特映射为一个码元,从而14400个编码的比特将被映射为7200个码元)。然后这两个独立编码和调制的数据块由扩展单元6处理。
扩展单元6使用各种各样的扩展码,诸如OVSF(正交可变扩展因子)码扩展该数据块,以便辨别每个天线的不同信道。注意到,在图2中示出的该MIMO系统的接收侧具有相同的扩展码,并且使用相同的码解扩展接收的数据。因此,该MIMO系统能够对于每个相应的天线选择不同的MCS,从而提高该系统的吞吐量。
然后,在从相应的天线121和12T发射之前,在码元合成单元8中合成该扩展码元和在扰频单元10中对其扰频。注意到,扰频码被用于鉴别小区范围(例如,接收的信息是从节点B1,而不是例如从节点B2接收的)。
接收操作反转该发射操作,以最终获得最初发送的数据。更详细地,参考图2,接收侧包括接收天线20、干扰去除单元22、最小均方差(MMSE)检测器24、解扩展器26、多路复用器28、信号检测、去映射、去交织和解码单元30、信号重新配置单元32以及合成和多路复用单元34。
此外,该接收端的MMSE检测器24检测在经由多个接收天线(201~20N)接收的信号之中具有最大SINK(信号与干扰噪声比)的信号,并且对该信号执行MMSE均衡。MMSE检测器24的输出被在该解扩展器26中解扩展,然后合成为一个信号。信号检测单元30从多路复用器28输出的信号中检测传输码元,并且对检测的码元执行去映射和去交织操作以检测第一子流。
此时,信号重新配置单元32将由信号检测单元30检测的第一个子流重建为接收信号形式,并且将其输出到干扰去除单元22。为了将在码元之间的影响减到最小,该干扰去除单元22从先前存储在缓冲器中的接收信号中删除首次检测的信号分量(重建的信号),然后将检测了信号分量的信号输出到MMSE检测器24。
然后,该MMSE检测器24均衡在去除了重建的信号的信号之中具有最大SINR的信号。MMSE检测器24的输出经由解扩展器26和多路复用器28输入到信号检测单元30,并且该信号检测单元30检测第二子流。
信号重新配置单元32重建已经由信号检测单元30检测的第二子数据流,并且将其输出给干扰去除单元22。然后,该干扰去除单元22从先前存储在缓冲器中的信号中删除该重建的信号,并且将其输出到MMSE检测器24。
而后,通过重复执行以上所述操作,信号检测单元30顺序地检测子数据流。在所有子数据流被信号检测单元30检测之后,合成单元34将多个检测的子流组装形成一个数据流。
因此,概括地说,该V-BLAST系统使用M个发射天线和N个接收天线执行通信。在这种情况下,顺序地产生的数据实质上穿过一个串并行转换电路,经由相应的天线作为独立的信号并行发射。此外,如上所述,可以单独地对每个天线设置发送的信号的调制和编码方案(MCS)。
此外,单独地选择该MCS提高了MIMO系统的吞吐量。但是,该接收侧必须发送信令信道信息给发射侧(诸如,表示信道质量的信道质量指示符(CQI))。例如,如果分别控制四个天线的MCS,与使用单个码的单个天线相比较,存在四倍的信道状态信息(诸如CQI)。因此,一个额外的信令负荷被增加给该MIMO系统。
因此,尽管能够对每个天线分别选择不同的MCS,但是本发明对每个天线设置相同的MCS。更详细地,在从接收侧接收信道状态信息(以下简称为CQI)时,发射侧基于接收的CQI信息选择适当的MCS。
也就是说,如图3所示,接收对应于MIMO系统中每个数据流的CQI(步骤S10),基于接收的CQI来选择适当的MCS(步骤S12),将选择的MCS应用到该MIMO系统中所有的发送数据流(步骤S14),并且天线使用同样应用的MCS来发射数据(步骤S16)。
例如,假设存在四个发射天线,那么对于发送数据流的每个将有来自接收侧的四个独立的CQI。因此,按照本发明,发射侧基于接收的CQI选择适当的MCS。在一个例子中,发射侧选择允许发送最大量数据的MCS,并且将选择的MCS应用到在这个例子中的四个数据流的每个。例如,如果用于四个发射天线的CQI分别地是3比特/秒、2比特/秒、0.5比特/秒和1比特/秒,发射侧将产生3比特/秒的CQI所使用的MCS应用到所有的四个天线(即,在这个例子中,第一个天线产生3比特/秒的CQI),因而,用于第一个天线的该MCS将应用于所有的四个天线。
但是,注意到本发明还可以选择这样的MCS,其产生最小的CQI、接收的CQI的平均值、平均的CQI或者任何其他的组合。例如,以上CQI的平均值是1.65比特/秒。在这个例子中,选择产生这个平均值的该MCS,并且将其应用于所有的天线。这可以例如通过读取CQI数据表并且检索产生提到的1.65比特/秒的CQI的相应MCS来执行。此外,如果该CQI表不包括计算的准确的CQI(诸如,在这个例子中,1.65比特/秒的CQI),可以选择最接近1.65比特/秒的CQI的MCS。
概括地说,本发明将相同的MCS应用于所有的数据流,从而减少了从接收侧发送的信令开销,并且还使得能够将更多的功率分配给数据传输,以便提高传输效率。
注意到,以上所述的例子描述了选择由每个发射天线使用的共同MCS。但是,也可以仅选择单个调制方案(而不是选择MCS中调制和编码方案两者),或者仅选择单个编码方案(而不是选择MCS中调制和编码方案两者)来应用于每个发射天线。
使用常规的通用数字计算机或者按照本说明书的教导编程的微处理器可以方便地实现本发明,这对于计算机领域的技术人员来说是显而易见的。基于本公开的教导,可以容易地由熟练的程序员制备适当的软件编码,这对于软件领域的技术人员来说是显而易见的。还可以通过制备专用集成电路或者通过相互连接适当的常规组件电路的网络来实现本发明,这对于本领域技术人员来说是显而易见的。
本发明包括计算机程序产品,其是包括可用于编程计算机以执行本发明处理过程的指令的存储介质。该存储介质可以包括,但是不局限于,任何类型的盘,包括软盘、光盘、CD-ROM和磁光盘,ROM、RAM、EPROM、EEPROM、磁卡或者光学卡,或者适用于存储电子指令的任何类型的介质。
上述的实施例和优点仅仅是示范性的,并且不应理解为限制本发明。本教导可以容易地应用于其他类型的装置。本发明的说明意图是说明性的,而不是限制权利要求的范围。对于本领域技术人员来说,许多的替换、修改和变化将是显而易见的。在权利要求中,装置加功能条款意图是覆盖在此处描述的作为执行所列功能的结构,并且不仅是结构上的等效,而且是等效的结构。
工业实用性
本发明可以应用于多输入/多输出(MIMO)系统。

Claims (24)

1.一种在多输入/多输出(MIMO)通信系统中通信的方法,包括:
接收对应于该MIMO系统中每个发送数据流的信道状态信息;和
基于接收的信道状态信息,确定用于所有的发送数据流的公共调制方案。
2.根据权利要求1的方法,进一步包括:
使用该确定的公共调制方案,调制要由每个发送数据流发送的数据,然后发送该调制的数据。
3.根据权利要求1的方法,其中确定该公共调制方案选择由相应的发送数据流使用的调制方案,其具有最佳信道状态信息。
4.根据权利要求1的方法,其中确定该公共调制方案选择由相应的发送数据流使用的调制方案,其具有最坏信道状态信息。
5.根据权利要求1的方法,其中确定该公共调制方案计算接收的来自每个发送数据流的信道状态信息的平均值,并且选择其产生该计算的平均值的调制方案,以用作该公共调制方案。
6.根据权利要求1的方法,其中确定该公共调制方案计算该接收的来自每个发送数据流的信道状态信息的均值,并且选择其产生计算的均值的调制,以用作该公共调制方案。
7.一种在多输入/多输出(MIMO)通信系统中通信的方法,包括:
接收对应于该MIMO系统中每个发送数据流的信道状态信息;和
基于接收的信道状态信息,确定用于所有的发送数据流的公共编码方案。
8.根据权利要求7的方法,进一步包括:
使用该确定的公共编码方案,编码要由每个发送数据流发送的数据,然后发送该编码的数据。
9.根据权利要求7的方法,其中确定该公共编码方案选择由相应的发送数据流使用的编码方案,其具有最佳信道状态信息。
10.根据权利要求7的方法,其中确定该公共编码方案选择由相应的发送数据流使用的编码方案,其具有最坏信道状态信息。
11.根据权利要求7的方法,其中确定该公共编码方案计算接收的来自每个发送数据流的信道状态信息的平均值,并且选择其产生该计算的平均值的编码方案,以用作该公共编码方案。
12.根据权利要求7的方法,其中确定该公共编码方案计算接收的来自每个发送数据流的信道状态信息的均值,并且选择其产生该计算的均值的编码方案,以用作该公共编码方案。
13.一种在多输入/多输出(MIMO)通信系统中通信的方法,包括:
接收对应于该MIMO系统中每个发送数据流的信道状态信息;和
基于该接收的信道状态信息,确定用于所有的发送数据流的公共调制和编码设置。
14.根据权利要求13的方法,进一步包括:
使用该确定的公共调制和编码设置,调制和编码要由每个发送数据流发送的数据,然后发送该调制和编码的数据。
15.根据权利要求13的方法,其中确定该公共调制和编码设置选择由相应的发送数据流使用的调制和编码设置,其具有最佳信道状态信息。
16.根据权利要求13的方法,其中确定该公共调制和编码设置选择由相应的发送数据流使用的调制和编码设置,其具有最坏信道状态信息。
17.根据权利要求13的方法,其中确定该公共调制和编码设置计算接收的来自每个发送数据流的信道状态信息的平均值,并且选择其产生该计算的平均值的调制和编码设置,以用作该公共调制和编码设置。
18.根据权利要求13的方法,其中确定该公共调制和编码设置计算接收的来自每个发送数据流的信道状态信息的均值,并且选择其产生该计算的平均值的调制和编码设置,以用作该公共调制和编码设置。
19.一种多输入/多输出(MIMO)通信设备,包括:
接收单元,其配置来接收对应于多个发送数据流的每个的信道状态信息;和
确定单元,其配置以基于接收的信道状态信息确定1)公共调制方案、2)公共编码方案、或者3)公共调制和编码设置中的一个,以用于所有的多个发送数据流。
20.根据权利要求19的设备,进一步包括:
调制器,其配置来使用该确定的公共调制方案来调制要由每个发送数据流发送的数据;和
编码单元,其配置来使用该确定的公共编码方案来编码要由每个发射天线发送的数据。
21.根据权利要求19的装置,其中该确定单元通过选择由相应的有最佳信道状态信息的发送数据流使用的调制方案、编码方案或者调制和编码设置,来确定该公共调制方案、编码方案,或者调制和编码设置。
22.根据权利要求19的装置,其中该确定单元通过选择由相应的具有最坏信道状态信息的发送数据流使用的调制方案、编码方案或者调制和编码设置,来确定该公共调制方案、编码方案或者调制和编码设置。
23.根据权利要求19的装置,其中该确定单元通过计算接收的来自每个发送数据流的信道状态信息的平均值,确定该公共调制方案、编码方案或者调制和编码设置,并且选择其产生该计算的平均值的调制方案、编码方案或者调制和编码设置,以用作该公共调制方案、公共编码方案或者公共调制和编码设置。
24.根据权利要求19的装置,其中该确定单元通过计算接收的来自每个发送数据流的信道状态信息的均值,确定该公共调制方案、编码方案或者调制和编码设置,并且选择其产生该计算的均值的调制方案、编码方案或者调制和编码设置,以用作该公共调制方案、公共编码方案或者公共调制和编码设置。
CN2004800286342A 2003-10-01 2004-09-22 在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法 Expired - Fee Related CN1864346B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020030068306A KR100976489B1 (ko) 2003-10-01 2003-10-01 이동통신의 다중입력 다중출력 시스템에 적용되는데이터의 변조 및 코딩 방식 제어 방법
KR10-2003-0068306 2003-10-01
KR1020030068306 2003-10-01
PCT/KR2004/002423 WO2005032000A1 (en) 2003-10-01 2004-09-22 Method of controlling data modulation and coding applied to multi-input/multi-output system in mobile communications

Publications (2)

Publication Number Publication Date
CN1864346A true CN1864346A (zh) 2006-11-15
CN1864346B CN1864346B (zh) 2010-06-16

Family

ID=36284194

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2004800286342A Expired - Fee Related CN1864346B (zh) 2003-10-01 2004-09-22 在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法

Country Status (5)

Country Link
US (1) US7502419B2 (zh)
EP (1) EP1668792B1 (zh)
KR (1) KR100976489B1 (zh)
CN (1) CN1864346B (zh)
WO (1) WO2005032000A1 (zh)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071102A1 (en) * 2006-12-12 2008-06-19 Hong Kong Applied Science and Technology Research Institute Co. Ltd Pre-processing systems and method for mimo antenna systems
CN104995612A (zh) * 2013-01-17 2015-10-21 康杜实验室公司 低同步开关噪声芯片间通信方法和系统
US9985745B2 (en) 2013-06-25 2018-05-29 Kandou Labs, S.A. Vector signaling with reduced receiver complexity
US9985634B2 (en) 2010-05-20 2018-05-29 Kandou Labs, S.A. Data-driven voltage regulator
US10003454B2 (en) 2016-04-22 2018-06-19 Kandou Labs, S.A. Sampler with low input kickback
US10003315B2 (en) 2016-01-25 2018-06-19 Kandou Labs S.A. Voltage sampler driver with enhanced high-frequency gain
US10003424B2 (en) 2014-07-17 2018-06-19 Kandou Labs, S.A. Bus reversible orthogonal differential vector signaling codes
US10020966B2 (en) 2014-02-28 2018-07-10 Kandou Labs, S.A. Vector signaling codes with high pin-efficiency for chip-to-chip communication and storage
US10044452B2 (en) 2010-05-20 2018-08-07 Kandou Labs, S.A. Methods and systems for skew tolerance in and advanced detectors for vector signaling codes for chip-to-chip communication
US10055372B2 (en) 2015-11-25 2018-08-21 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10056903B2 (en) 2016-04-28 2018-08-21 Kandou Labs, S.A. Low power multilevel driver
US10057049B2 (en) 2016-04-22 2018-08-21 Kandou Labs, S.A. High performance phase locked loop
US10091035B2 (en) 2013-04-16 2018-10-02 Kandou Labs, S.A. Methods and systems for high bandwidth communications interface
US10091033B2 (en) 2014-06-25 2018-10-02 Kandou Labs, S.A. Multilevel driver for high speed chip-to-chip communications
US10116472B2 (en) 2015-06-26 2018-10-30 Kandou Labs, S.A. High speed communications system
US10116468B1 (en) 2017-06-28 2018-10-30 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US10122561B2 (en) 2014-08-01 2018-11-06 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10153591B2 (en) 2016-04-28 2018-12-11 Kandou Labs, S.A. Skew-resistant multi-wire channel
US10164809B2 (en) 2010-12-30 2018-12-25 Kandou Labs, S.A. Circuits for efficient detection of vector signaling codes for chip-to-chip communication
US10177812B2 (en) 2014-01-31 2019-01-08 Kandou Labs, S.A. Methods and systems for reduction of nearest-neighbor crosstalk
US10193716B2 (en) 2016-04-28 2019-01-29 Kandou Labs, S.A. Clock data recovery with decision feedback equalization
US10200218B2 (en) 2016-10-24 2019-02-05 Kandou Labs, S.A. Multi-stage sampler with increased gain
US10200188B2 (en) 2016-10-21 2019-02-05 Kandou Labs, S.A. Quadrature and duty cycle error correction in matrix phase lock loop
US10203226B1 (en) 2017-08-11 2019-02-12 Kandou Labs, S.A. Phase interpolation circuit
US10230549B2 (en) 2014-07-21 2019-03-12 Kandou Labs, S.A. Multidrop data transfer
US10242749B2 (en) 2016-04-22 2019-03-26 Kandou Labs, S.A. Calibration apparatus and method for sampler with adjustable high frequency gain
US10243765B2 (en) 2014-10-22 2019-03-26 Kandou Labs, S.A. Method and apparatus for high speed chip-to-chip communications
US10277431B2 (en) 2016-09-16 2019-04-30 Kandou Labs, S.A. Phase rotation circuit for eye scope measurements
US10320588B2 (en) 2014-07-10 2019-06-11 Kandou Labs, S.A. Vector signaling codes with increased signal to noise characteristics
US10326623B1 (en) 2017-12-08 2019-06-18 Kandou Labs, S.A. Methods and systems for providing multi-stage distributed decision feedback equalization
US10333749B2 (en) 2014-05-13 2019-06-25 Kandou Labs, S.A. Vector signaling code with improved noise margin
US10333741B2 (en) 2016-04-28 2019-06-25 Kandou Labs, S.A. Vector signaling codes for densely-routed wire groups
US10348436B2 (en) 2014-02-02 2019-07-09 Kandou Labs, S.A. Method and apparatus for low power chip-to-chip communications with constrained ISI ratio
US10355756B2 (en) 2010-04-30 2019-07-16 ECOLE POLYTECHNIQUE FéDéRALE DE LAUSANNE Orthogonal differential vector signaling
US10355852B2 (en) 2016-08-31 2019-07-16 Kandou Labs, S.A. Lock detector for phase lock loop
US10372665B2 (en) 2016-10-24 2019-08-06 Kandou Labs, S.A. Multiphase data receiver with distributed DFE
US10467177B2 (en) 2017-12-08 2019-11-05 Kandou Labs, S.A. High speed memory interface
US10468078B2 (en) 2010-05-20 2019-11-05 Kandou Labs, S.A. Methods and systems for pin-efficient memory controller interface using vector signaling codes for chip-to-chip communication
US10554380B2 (en) 2018-01-26 2020-02-04 Kandou Labs, S.A. Dynamically weighted exclusive or gate having weighted output segments for phase detection and phase interpolation
US10666297B2 (en) 2017-04-14 2020-05-26 Kandou Labs, S.A. Pipelined forward error correction for vector signaling code channel
US10686583B2 (en) 2017-07-04 2020-06-16 Kandou Labs, S.A. Method for measuring and correcting multi-wire skew
US10693473B2 (en) 2017-05-22 2020-06-23 Kandou Labs, S.A. Multi-modal data-driven clock recovery circuit
US10693587B2 (en) 2017-07-10 2020-06-23 Kandou Labs, S.A. Multi-wire permuted forward error correction
US11063799B2 (en) 2017-12-28 2021-07-13 Kandou Labs, S.A. Synchronously-switched multi-input demodulating comparator
US11240076B2 (en) 2014-05-13 2022-02-01 Kandou Labs, S.A. Vector signaling code with improved noise margin
US11831472B1 (en) 2022-08-30 2023-11-28 Kandou Labs SA Pre-scaler for orthogonal differential vector signalling

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7889759B2 (en) * 2001-05-04 2011-02-15 Entropic Communications, Inc. Broadband cable network utilizing common bit-loading
KR100871259B1 (ko) 2006-01-02 2008-11-28 삼성전자주식회사 통신 시스템에서 신호 수신 장치 및 방법
KR100913872B1 (ko) * 2006-01-18 2009-08-26 삼성전자주식회사 통신 시스템에서 데이터 송수신 장치 및 방법
WO2007092245A2 (en) * 2006-02-03 2007-08-16 Interdigital Technology Corporation Quality of service based resource determination and allocation apparatus and procedure in high speed packet access evolution and long term evolution systems
KR100950654B1 (ko) * 2006-03-03 2010-04-01 삼성전자주식회사 다중 입력 다중 출력 방식을 사용하는 통신 시스템에서신호 송수신 장치 및 방법
US7830977B2 (en) * 2006-05-01 2010-11-09 Intel Corporation Providing CQI feedback with common code rate to a transmitter station
CN103905156B (zh) * 2006-07-12 2018-10-02 英特尔公司 确定可预测的调制和编码方案的系统和方法
CN101150344B (zh) * 2006-09-22 2011-07-20 上海无线通信研究中心 一种下行多流调制编码方式选择和功率加载方法
US20080080635A1 (en) * 2006-10-02 2008-04-03 Nokia Corporation Advanced feedback signaling for multi-antenna transmission systems
US8331878B2 (en) * 2006-10-02 2012-12-11 Koninklijke Philips Electronics N.V. Efficient CQI signaling MIMO systems with variable numbers of beams
WO2008051153A2 (en) * 2006-10-27 2008-05-02 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for allocating radio resources in a communication system
KR101296002B1 (ko) * 2009-08-27 2013-08-14 엘지전자 주식회사 무선랜 시스템에서의 변조 및 코딩 방식 설정 방법 및 이를 지원하는 장치
US8526985B2 (en) * 2009-11-30 2013-09-03 Alcatel Lucent System and method of geo-concentrated video detection
US10496583B2 (en) * 2017-09-07 2019-12-03 Kandou Labs, S.A. Low power multilevel driver for generating wire signals according to summations of a plurality of weighted analog signal components having wire-specific sub-channel weights
US10848228B2 (en) * 2018-02-16 2020-11-24 Qualcomm Incorporated Modulation and coding scheme and channel quality indicator for high reliability
WO2023174539A1 (en) * 2022-03-17 2023-09-21 Huawei Technologies Co., Ltd. Mapping multiple-input multiple-output layers, modulation and coding scheme selection and control signaling thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW520587B (en) * 2001-01-13 2003-02-11 Koninkl Philips Electronics Nv Radio communication system
EP1255369A1 (en) 2001-05-04 2002-11-06 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Link adaptation for wireless MIMO transmission schemes
US6785341B2 (en) * 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US7072413B2 (en) * 2001-05-17 2006-07-04 Qualcomm, Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
GB0115937D0 (en) * 2001-06-29 2001-08-22 Koninkl Philips Electronics Nv Radio communication system
US6956907B2 (en) * 2001-10-15 2005-10-18 Qualcomm, Incorporated Method and apparatus for determining power allocation in a MIMO communication system
US7154960B2 (en) * 2002-12-31 2006-12-26 Lucent Technologies Inc. Method of determining the capacity of each transmitter antenna in a multiple input/multiple output (MIMO) wireless system

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8031795B2 (en) 2006-12-12 2011-10-04 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Pre-processing systems and methods for MIMO antenna systems
WO2008071102A1 (en) * 2006-12-12 2008-06-19 Hong Kong Applied Science and Technology Research Institute Co. Ltd Pre-processing systems and method for mimo antenna systems
US10355756B2 (en) 2010-04-30 2019-07-16 ECOLE POLYTECHNIQUE FéDéRALE DE LAUSANNE Orthogonal differential vector signaling
US10985806B2 (en) 2010-04-30 2021-04-20 ECOLE POLYTECHNIQUE FéDéRALE DE LAUSANNE Orthogonal differential vector signaling
US11611377B2 (en) 2010-04-30 2023-03-21 Ecole Polytechnique Federale De Lausanne Orthogonal differential vector signaling
US9985634B2 (en) 2010-05-20 2018-05-29 Kandou Labs, S.A. Data-driven voltage regulator
US10044452B2 (en) 2010-05-20 2018-08-07 Kandou Labs, S.A. Methods and systems for skew tolerance in and advanced detectors for vector signaling codes for chip-to-chip communication
US10468078B2 (en) 2010-05-20 2019-11-05 Kandou Labs, S.A. Methods and systems for pin-efficient memory controller interface using vector signaling codes for chip-to-chip communication
US10164809B2 (en) 2010-12-30 2018-12-25 Kandou Labs, S.A. Circuits for efficient detection of vector signaling codes for chip-to-chip communication
CN104995612B (zh) * 2013-01-17 2020-01-03 康杜实验室公司 低同步开关噪声芯片间通信方法和系统
CN104995612A (zh) * 2013-01-17 2015-10-21 康杜实验室公司 低同步开关噪声芯片间通信方法和系统
US11374801B2 (en) 2013-04-16 2022-06-28 Kandou Labs, S.A. Methods and systems for high bandwidth communications interface
US10091035B2 (en) 2013-04-16 2018-10-02 Kandou Labs, S.A. Methods and systems for high bandwidth communications interface
US9985745B2 (en) 2013-06-25 2018-05-29 Kandou Labs, S.A. Vector signaling with reduced receiver complexity
US10177812B2 (en) 2014-01-31 2019-01-08 Kandou Labs, S.A. Methods and systems for reduction of nearest-neighbor crosstalk
US11683113B2 (en) 2014-02-02 2023-06-20 Kandou Labs, S.A. Method and apparatus for low power chip-to-chip communications with constrained ISI ratio
US10348436B2 (en) 2014-02-02 2019-07-09 Kandou Labs, S.A. Method and apparatus for low power chip-to-chip communications with constrained ISI ratio
US11025359B2 (en) 2014-02-02 2021-06-01 Kandou Labs, S.A. Method and apparatus for low power chip-to-chip communications with constrained ISI ratio
US10020966B2 (en) 2014-02-28 2018-07-10 Kandou Labs, S.A. Vector signaling codes with high pin-efficiency for chip-to-chip communication and storage
US10374846B2 (en) 2014-02-28 2019-08-06 Kandou Labs, S.A. Clock-embedded vector signaling codes
US10805129B2 (en) 2014-02-28 2020-10-13 Kandou Labs, S.A. Clock-embedded vector signaling codes
US10333749B2 (en) 2014-05-13 2019-06-25 Kandou Labs, S.A. Vector signaling code with improved noise margin
US11716227B2 (en) 2014-05-13 2023-08-01 Kandou Labs, S.A. Vector signaling code with improved noise margin
US11240076B2 (en) 2014-05-13 2022-02-01 Kandou Labs, S.A. Vector signaling code with improved noise margin
US10091033B2 (en) 2014-06-25 2018-10-02 Kandou Labs, S.A. Multilevel driver for high speed chip-to-chip communications
US10320588B2 (en) 2014-07-10 2019-06-11 Kandou Labs, S.A. Vector signaling codes with increased signal to noise characteristics
US10404394B2 (en) 2014-07-17 2019-09-03 Kandou Labs, S.A. Bus reversible orthogonal differential vector signaling codes
US10003424B2 (en) 2014-07-17 2018-06-19 Kandou Labs, S.A. Bus reversible orthogonal differential vector signaling codes
US10230549B2 (en) 2014-07-21 2019-03-12 Kandou Labs, S.A. Multidrop data transfer
US10652067B2 (en) 2014-08-01 2020-05-12 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10122561B2 (en) 2014-08-01 2018-11-06 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10243765B2 (en) 2014-10-22 2019-03-26 Kandou Labs, S.A. Method and apparatus for high speed chip-to-chip communications
US10382235B2 (en) 2015-06-26 2019-08-13 Kandou Labs, S.A. High speed communications system
US10819541B2 (en) 2015-06-26 2020-10-27 Kandou Labs, S.A. High speed communications system
US11115249B2 (en) 2015-06-26 2021-09-07 Kandou Labs, S.A. High speed communications system
US11863358B2 (en) 2015-06-26 2024-01-02 Kandou Labs, S.A. High speed communications system
US10116472B2 (en) 2015-06-26 2018-10-30 Kandou Labs, S.A. High speed communications system
US11483187B2 (en) 2015-06-26 2022-10-25 Kandou Labs, S.A. High speed communications system
US10608850B2 (en) 2015-06-26 2020-03-31 Kandou Labs, S.A. High speed communications system
US10324876B2 (en) 2015-11-25 2019-06-18 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10055372B2 (en) 2015-11-25 2018-08-21 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
US10003315B2 (en) 2016-01-25 2018-06-19 Kandou Labs S.A. Voltage sampler driver with enhanced high-frequency gain
US10003454B2 (en) 2016-04-22 2018-06-19 Kandou Labs, S.A. Sampler with low input kickback
US10242749B2 (en) 2016-04-22 2019-03-26 Kandou Labs, S.A. Calibration apparatus and method for sampler with adjustable high frequency gain
US10057049B2 (en) 2016-04-22 2018-08-21 Kandou Labs, S.A. High performance phase locked loop
US10333741B2 (en) 2016-04-28 2019-06-25 Kandou Labs, S.A. Vector signaling codes for densely-routed wire groups
US10153591B2 (en) 2016-04-28 2018-12-11 Kandou Labs, S.A. Skew-resistant multi-wire channel
US10193716B2 (en) 2016-04-28 2019-01-29 Kandou Labs, S.A. Clock data recovery with decision feedback equalization
US10056903B2 (en) 2016-04-28 2018-08-21 Kandou Labs, S.A. Low power multilevel driver
US10355852B2 (en) 2016-08-31 2019-07-16 Kandou Labs, S.A. Lock detector for phase lock loop
US10277431B2 (en) 2016-09-16 2019-04-30 Kandou Labs, S.A. Phase rotation circuit for eye scope measurements
US10411922B2 (en) 2016-09-16 2019-09-10 Kandou Labs, S.A. Data-driven phase detector element for phase locked loops
US10200188B2 (en) 2016-10-21 2019-02-05 Kandou Labs, S.A. Quadrature and duty cycle error correction in matrix phase lock loop
US10372665B2 (en) 2016-10-24 2019-08-06 Kandou Labs, S.A. Multiphase data receiver with distributed DFE
US10200218B2 (en) 2016-10-24 2019-02-05 Kandou Labs, S.A. Multi-stage sampler with increased gain
US10666297B2 (en) 2017-04-14 2020-05-26 Kandou Labs, S.A. Pipelined forward error correction for vector signaling code channel
US11336302B2 (en) 2017-04-14 2022-05-17 Kandou Labs, S.A. Pipelined forward error correction for vector signaling code channel
US11804855B2 (en) 2017-04-14 2023-10-31 Kandou Labs, S.A. Pipelined forward error correction for vector signaling code channel
US11271571B2 (en) 2017-05-22 2022-03-08 Kandou Labs, S.A. Multi-modal data-driven clock recovery circuit
US10693473B2 (en) 2017-05-22 2020-06-23 Kandou Labs, S.A. Multi-modal data-driven clock recovery circuit
US11804845B2 (en) 2017-05-22 2023-10-31 Kandou Labs, S.A. Multi-modal data-driven clock recovery circuit
US10116468B1 (en) 2017-06-28 2018-10-30 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US11032110B2 (en) 2017-06-28 2021-06-08 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US11477055B2 (en) 2017-06-28 2022-10-18 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US10581644B2 (en) 2017-06-28 2020-03-03 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US10686583B2 (en) 2017-07-04 2020-06-16 Kandou Labs, S.A. Method for measuring and correcting multi-wire skew
US11368247B2 (en) 2017-07-10 2022-06-21 Kandou Labs, S.A. Multi-wire permuted forward error correction
US11894926B2 (en) 2017-07-10 2024-02-06 Kandou Labs, S.A. Interleaved forward error correction over multiple transport channels
US10693587B2 (en) 2017-07-10 2020-06-23 Kandou Labs, S.A. Multi-wire permuted forward error correction
US10203226B1 (en) 2017-08-11 2019-02-12 Kandou Labs, S.A. Phase interpolation circuit
US10467177B2 (en) 2017-12-08 2019-11-05 Kandou Labs, S.A. High speed memory interface
US10326623B1 (en) 2017-12-08 2019-06-18 Kandou Labs, S.A. Methods and systems for providing multi-stage distributed decision feedback equalization
US11063799B2 (en) 2017-12-28 2021-07-13 Kandou Labs, S.A. Synchronously-switched multi-input demodulating comparator
US11894961B2 (en) 2017-12-28 2024-02-06 Kandou Labs, S.A. Synchronously-switched multi-input demodulating comparator
US11469931B2 (en) 2017-12-28 2022-10-11 Kandou Labs, S.A. Synchronously-switched multi-input demodulating comparator
US10554380B2 (en) 2018-01-26 2020-02-04 Kandou Labs, S.A. Dynamically weighted exclusive or gate having weighted output segments for phase detection and phase interpolation
US11831472B1 (en) 2022-08-30 2023-11-28 Kandou Labs SA Pre-scaler for orthogonal differential vector signalling

Also Published As

Publication number Publication date
US7502419B2 (en) 2009-03-10
KR20050032277A (ko) 2005-04-07
EP1668792A1 (en) 2006-06-14
US20050074072A1 (en) 2005-04-07
EP1668792B1 (en) 2015-06-03
KR100976489B1 (ko) 2010-08-18
WO2005032000A1 (en) 2005-04-07
CN1864346B (zh) 2010-06-16

Similar Documents

Publication Publication Date Title
CN1864346B (zh) 在移动通信中应用于多输入/多输出系统的控制数据调制和编码的方法
CN1886913B (zh) 多天线系统中的控制信号发送方法
KR101151130B1 (ko) 완전 다이버시티 완전 데이터 레이트 시공간 블록 부호를 이용한 데이터 송수신 방법 및 장치
TWI323577B (en) Method and apparatus to select coding mode
US7372912B2 (en) Method and apparatus for allocating channelization codes for wireless communications
KR101092537B1 (ko) 선형 프리코드화된 신호의 다중 안테나 전송방법, 장치, 그신호 및 그 수신방법
JP4070788B2 (ja) 複数のチャンネルをもつ通信システムにおける電力及びビットロード割り当て
CN1906870A (zh) 用于多输入/多输出传输的灵活速率分割方法
KR100922957B1 (ko) 다중입출력 통신시스템의 신호검출 장치 및 방법
US8995411B2 (en) Method and system for content-aware mapping/error protection using different spatial streams
CN1650541A (zh) 使用多发射多接收天线阵列的无线通信
KR100772987B1 (ko) 최대 다이버시티와 최대 다중화를 위한 선형 시공간 부호생성방법과 그 시공간 부호를 사용한 다중 안테나 시스템
CN1462516A (zh) 无线通信系统
CN101841397A (zh) 一种广义空间调制系统
JP4927953B2 (ja) Ofdm技術を利用する通信システムにおいてシンボルをマッピングする方法及び構成
CN101053190A (zh) 多输入多输出正交频分复用系统中的链路自适应系统以及其方法
KR100991780B1 (ko) 다중입력/다중출력 시스템에 있어서 송수신 신호처리 방법
CN101044708A (zh) 操作mimo系统的方法和系统
CN1868143A (zh) Mimo 系统中下行链路控制信号的发送方法
CN1863001A (zh) 一种多输入输出发射方案优化方法及系统
KR101055722B1 (ko) 다중입력/다중출력 시스템에 적용되는 송신 신호 처리 방법
MXPA06006570A (en) Control signal transmitting method in multi-antenna system
KR100991781B1 (ko) 다중입력 다중출력 시스템에 있어서 송수신 신호처리 방법
Zhenghang et al. A time-varying MIMO fading channel tracking scheme in space-time code system
JP2018504018A (ja) 空間分層伝送方法及び装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100616

Termination date: 20180922